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 mp->port = s->transport.rmt_port;
239 mp->proto = s->session_type;
240 app_send_ctrl_evt_to_vpp (mq, app_evt);
244 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
246 app_session_evt_t _app_evt, *app_evt = &_app_evt;
247 session_unlisten_msg_t *mp;
250 mq = vcl_worker_ctrl_mq (wrk);
251 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
252 mp = (session_unlisten_msg_t *) app_evt->evt->data;
253 memset (mp, 0, sizeof (*mp));
254 mp->client_index = wrk->my_client_index;
255 mp->wrk_index = wrk->vpp_wrk_index;
256 mp->handle = s->vpp_handle;
257 mp->context = wrk->wrk_index;
258 app_send_ctrl_evt_to_vpp (mq, app_evt);
262 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
264 app_session_evt_t _app_evt, *app_evt = &_app_evt;
265 session_disconnect_msg_t *mp;
268 /* Send to thread that owns the session */
270 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
271 mp = (session_disconnect_msg_t *) app_evt->evt->data;
272 memset (mp, 0, sizeof (*mp));
273 mp->client_index = wrk->my_client_index;
274 mp->handle = s->vpp_handle;
275 app_send_ctrl_evt_to_vpp (mq, app_evt);
279 vcl_send_app_detach (vcl_worker_t * wrk)
281 app_session_evt_t _app_evt, *app_evt = &_app_evt;
282 session_app_detach_msg_t *mp;
285 mq = vcl_worker_ctrl_mq (wrk);
286 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
287 mp = (session_app_detach_msg_t *) app_evt->evt->data;
288 memset (mp, 0, sizeof (*mp));
289 mp->client_index = wrk->my_client_index;
290 app_send_ctrl_evt_to_vpp (mq, app_evt);
294 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
295 session_handle_t handle, int retval)
297 app_session_evt_t _app_evt, *app_evt = &_app_evt;
298 session_accepted_reply_msg_t *rmp;
299 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
300 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
301 rmp->handle = handle;
302 rmp->context = context;
303 rmp->retval = retval;
304 app_send_ctrl_evt_to_vpp (mq, app_evt);
308 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
309 session_handle_t handle, int retval)
311 app_session_evt_t _app_evt, *app_evt = &_app_evt;
312 session_disconnected_reply_msg_t *rmp;
313 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
314 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
315 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
316 rmp->handle = handle;
317 rmp->context = context;
318 rmp->retval = retval;
319 app_send_ctrl_evt_to_vpp (mq, app_evt);
323 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
324 session_handle_t handle, int retval)
326 app_session_evt_t _app_evt, *app_evt = &_app_evt;
327 session_reset_reply_msg_t *rmp;
328 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
329 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
330 rmp->handle = handle;
331 rmp->context = context;
332 rmp->retval = retval;
333 app_send_ctrl_evt_to_vpp (mq, app_evt);
337 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
340 app_session_evt_t _app_evt, *app_evt = &_app_evt;
341 session_worker_update_msg_t *mp;
344 mq = vcl_session_vpp_evt_q (wrk, s);
345 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
346 mp = (session_worker_update_msg_t *) app_evt->evt->data;
347 mp->client_index = wrk->my_client_index;
348 mp->handle = s->vpp_handle;
349 mp->req_wrk_index = wrk->vpp_wrk_index;
350 mp->wrk_index = wrk_index;
351 app_send_ctrl_evt_to_vpp (mq, app_evt);
355 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
358 vcl_session_t *session, *listen_session;
359 svm_fifo_t *rx_fifo, *tx_fifo;
363 session = vcl_session_alloc (wrk);
365 listen_session = vcl_session_get (wrk, ls_index);
366 if (listen_session->vpp_handle != mp->listener_handle)
368 VDBG (0, "ERROR: listener handle %lu does not match session %u",
369 mp->listener_handle, ls_index);
373 if (vcl_wait_for_segment (mp->segment_handle))
375 VDBG (0, "ERROR: segment for session %u couldn't be mounted!",
376 session->session_index);
380 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
381 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
382 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
384 rx_fifo->client_session_index = session->session_index;
385 tx_fifo->client_session_index = session->session_index;
386 rx_fifo->client_thread_index = vcl_get_worker_index ();
387 tx_fifo->client_thread_index = vcl_get_worker_index ();
388 vpp_wrk_index = tx_fifo->master_thread_index;
389 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
390 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
392 session->vpp_handle = mp->handle;
393 session->vpp_thread_index = rx_fifo->master_thread_index;
394 session->rx_fifo = rx_fifo;
395 session->tx_fifo = tx_fifo;
397 session->session_state = STATE_ACCEPT;
398 session->transport.rmt_port = mp->rmt.port;
399 session->transport.is_ip4 = mp->rmt.is_ip4;
400 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
401 sizeof (ip46_address_t));
403 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
404 session->transport.lcl_port = listen_session->transport.lcl_port;
405 session->transport.lcl_ip = listen_session->transport.lcl_ip;
406 session->session_type = listen_session->session_type;
407 session->is_dgram = vcl_proto_is_dgram (session->session_type);
408 session->listener_index = listen_session->session_index;
409 listen_session->n_accepted_sessions++;
411 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
412 " port %d queue %p!", session->session_index, mp->handle,
413 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
414 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
415 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
416 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
418 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
419 session->vpp_handle, 0);
421 return session->session_index;
424 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
425 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
426 VNET_API_ERROR_INVALID_ARGUMENT);
427 vcl_session_free (wrk, session);
428 return VCL_INVALID_SESSION_INDEX;
432 vcl_session_connected_handler (vcl_worker_t * wrk,
433 session_connected_msg_t * mp)
435 u32 session_index, vpp_wrk_index;
436 svm_fifo_t *rx_fifo, *tx_fifo;
437 vcl_session_t *session = 0;
439 session_index = mp->context;
440 session = vcl_session_get (wrk, session_index);
443 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
444 mp->handle, session_index);
445 return VCL_INVALID_SESSION_INDEX;
449 VDBG (0, "ERROR: session index %u: connect failed! %U",
450 session_index, format_api_error, ntohl (mp->retval));
451 session->session_state = STATE_FAILED;
452 session->vpp_handle = mp->handle;
453 return session_index;
456 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
457 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
458 if (vcl_wait_for_segment (mp->segment_handle))
460 VDBG (0, "segment for session %u couldn't be mounted!",
461 session->session_index);
462 session->session_state = STATE_FAILED;
463 return VCL_INVALID_SESSION_INDEX;
466 rx_fifo->client_session_index = session_index;
467 tx_fifo->client_session_index = session_index;
468 rx_fifo->client_thread_index = vcl_get_worker_index ();
469 tx_fifo->client_thread_index = vcl_get_worker_index ();
471 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
473 vpp_wrk_index = tx_fifo->master_thread_index;
474 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
475 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
479 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
480 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
481 if (vcl_wait_for_segment (mp->ct_segment_handle))
483 VDBG (0, "ct segment for session %u couldn't be mounted!",
484 session->session_index);
485 session->session_state = STATE_FAILED;
486 return VCL_INVALID_SESSION_INDEX;
490 session->rx_fifo = rx_fifo;
491 session->tx_fifo = tx_fifo;
492 session->vpp_handle = mp->handle;
493 session->vpp_thread_index = rx_fifo->master_thread_index;
494 session->transport.is_ip4 = mp->lcl.is_ip4;
495 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
496 sizeof (session->transport.lcl_ip));
497 session->transport.lcl_port = mp->lcl.port;
498 session->session_state = STATE_CONNECT;
500 /* Add it to lookup table */
501 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
503 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
504 " refcnt %d", session_index, mp->handle, session->rx_fifo,
505 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
507 return session_index;
511 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
513 vcl_session_msg_t *accepted_msg;
516 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
518 accepted_msg = &session->accept_evts_fifo[i];
519 if (accepted_msg->accepted_msg.handle == handle)
521 accepted_msg->flags |= flags;
529 vcl_session_reset_handler (vcl_worker_t * wrk,
530 session_reset_msg_t * reset_msg)
532 vcl_session_t *session;
535 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
536 session = vcl_session_get (wrk, sid);
539 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
540 return VCL_INVALID_SESSION_INDEX;
543 /* Caught a reset before actually accepting the session */
544 if (session->session_state == STATE_LISTEN)
547 if (!vcl_flag_accepted_session (session, reset_msg->handle,
548 VCL_ACCEPTED_F_RESET))
549 VDBG (0, "session was not accepted!");
550 return VCL_INVALID_SESSION_INDEX;
553 session->session_state = STATE_DISCONNECT;
554 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
559 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
561 vcl_session_t *session;
562 u32 sid = mp->context;
564 session = vcl_session_get (wrk, sid);
567 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
568 format_api_error, mp->retval);
571 session->session_state = STATE_FAILED;
572 session->vpp_handle = mp->handle;
577 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
579 return VCL_INVALID_SESSION_INDEX;
583 session->vpp_handle = mp->handle;
584 session->transport.is_ip4 = mp->lcl_is_ip4;
585 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
586 sizeof (ip46_address_t));
587 session->transport.lcl_port = mp->lcl_port;
588 vcl_session_table_add_listener (wrk, mp->handle, sid);
589 session->session_state = STATE_LISTEN;
591 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
592 vec_validate (wrk->vpp_event_queues, 0);
593 wrk->vpp_event_queues[0] = session->vpp_evt_q;
595 if (session->is_dgram)
597 svm_fifo_t *rx_fifo, *tx_fifo;
598 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
599 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
600 rx_fifo->client_session_index = sid;
601 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
602 tx_fifo->client_session_index = sid;
603 session->rx_fifo = rx_fifo;
604 session->tx_fifo = tx_fifo;
607 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
612 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
614 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
617 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
618 if (!s || s->session_state != STATE_DISCONNECT)
620 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
625 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
626 s->session_index, mp->handle, format_api_error, ntohl (mp->retval));
628 if (mp->context != wrk->wrk_index)
629 VDBG (0, "wrong context");
631 vcl_session_table_del_vpp_handle (wrk, mp->handle);
632 vcl_session_free (wrk, s);
635 static vcl_session_t *
636 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
638 vcl_session_msg_t *vcl_msg;
639 vcl_session_t *session;
641 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
642 if (PREDICT_FALSE (session != 0))
643 VWRN ("session overlap handle %lu state %u!", msg->handle,
644 session->session_state);
646 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
649 VERR ("couldn't find listen session: listener handle %llx",
650 msg->listener_handle);
654 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
655 vcl_msg->accepted_msg = *msg;
656 /* Session handle points to listener until fully accepted by app */
657 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
662 static vcl_session_t *
663 vcl_session_disconnected_handler (vcl_worker_t * wrk,
664 session_disconnected_msg_t * msg)
666 vcl_session_t *session;
668 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
671 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
675 /* Caught a disconnect before actually accepting the session */
676 if (session->session_state == STATE_LISTEN)
678 if (!vcl_flag_accepted_session (session, msg->handle,
679 VCL_ACCEPTED_F_CLOSED))
680 VDBG (0, "session was not accepted!");
684 session->session_state = STATE_VPP_CLOSING;
689 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
691 session_req_worker_update_msg_t *msg;
694 msg = (session_req_worker_update_msg_t *) data;
695 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
699 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
703 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
705 session_worker_update_reply_msg_t *msg;
708 msg = (session_worker_update_reply_msg_t *) data;
709 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
712 VDBG (0, "unknown handle 0x%llx", msg->handle);
715 if (vcl_wait_for_segment (msg->segment_handle))
717 clib_warning ("segment for session %u couldn't be mounted!",
724 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
725 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
726 s->rx_fifo->client_session_index = s->session_index;
727 s->tx_fifo->client_session_index = s->session_index;
728 s->rx_fifo->client_thread_index = wrk->wrk_index;
729 s->tx_fifo->client_thread_index = wrk->wrk_index;
731 s->session_state = STATE_UPDATED;
733 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
734 s->vpp_handle, wrk->wrk_index);
738 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
740 session_disconnected_msg_t *disconnected_msg;
741 vcl_session_t *session;
743 switch (e->event_type)
745 case SESSION_IO_EVT_RX:
746 case SESSION_IO_EVT_TX:
747 session = vcl_session_get (wrk, e->session_index);
748 if (!session || !(session->session_state & STATE_OPEN))
750 vec_add1 (wrk->unhandled_evts_vector, *e);
752 case SESSION_CTRL_EVT_ACCEPTED:
753 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
755 case SESSION_CTRL_EVT_CONNECTED:
756 vcl_session_connected_handler (wrk,
757 (session_connected_msg_t *) e->data);
759 case SESSION_CTRL_EVT_DISCONNECTED:
760 disconnected_msg = (session_disconnected_msg_t *) e->data;
761 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
764 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
765 session->vpp_handle);
767 case SESSION_CTRL_EVT_RESET:
768 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
770 case SESSION_CTRL_EVT_BOUND:
771 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
773 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
774 vcl_session_unlisten_reply_handler (wrk, e->data);
776 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
777 vcl_session_req_worker_update_handler (wrk, e->data);
779 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
780 vcl_session_worker_update_reply_handler (wrk, e->data);
783 clib_warning ("unhandled %u", e->event_type);
789 vppcom_wait_for_session_state_change (u32 session_index,
790 vcl_session_state_t state,
793 vcl_worker_t *wrk = vcl_worker_get_current ();
794 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
795 vcl_session_t *volatile session;
801 session = vcl_session_get (wrk, session_index);
802 if (PREDICT_FALSE (!session))
804 return VPPCOM_EBADFD;
806 if (session->session_state & state)
810 if (session->session_state & STATE_FAILED)
812 return VPPCOM_ECONNREFUSED;
815 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
820 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
821 vcl_handle_mq_event (wrk, e);
822 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
824 while (clib_time_now (&wrk->clib_time) < timeout);
826 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
827 vppcom_session_state_str (state));
828 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
830 return VPPCOM_ETIMEDOUT;
834 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
836 vcl_session_state_t state;
840 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
843 vec_foreach (sip, wrk->pending_session_wrk_updates)
845 s = vcl_session_get (wrk, *sip);
846 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
847 state = s->session_state;
848 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
849 s->session_state = state;
851 vec_reset_length (wrk->pending_session_wrk_updates);
855 vcl_flush_mq_events (void)
857 vcl_worker_t *wrk = vcl_worker_get_current ();
858 svm_msg_q_msg_t *msg;
863 mq = wrk->app_event_queue;
865 vcl_mq_dequeue_batch (wrk, mq, ~0);
866 svm_msg_q_unlock (mq);
868 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
870 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
871 e = svm_msg_q_msg_data (mq, msg);
872 vcl_handle_mq_event (wrk, e);
873 svm_msg_q_free_msg (mq, msg);
875 vec_reset_length (wrk->mq_msg_vector);
876 vcl_handle_pending_wrk_updates (wrk);
880 vppcom_app_session_enable (void)
884 if (vcm->app_state != STATE_APP_ENABLED)
886 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
887 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
888 if (PREDICT_FALSE (rv))
890 VDBG (0, "application session enable timed out! returning %d (%s)",
891 rv, vppcom_retval_str (rv));
899 vppcom_app_attach (void)
903 vppcom_app_send_attach ();
904 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
905 if (PREDICT_FALSE (rv))
907 VDBG (0, "application attach timed out! returning %d (%s)", rv,
908 vppcom_retval_str (rv));
916 vppcom_session_unbind (u32 session_handle)
918 vcl_worker_t *wrk = vcl_worker_get_current ();
919 session_accepted_msg_t *accepted_msg;
920 vcl_session_t *session = 0;
921 vcl_session_msg_t *evt;
923 session = vcl_session_get_w_handle (wrk, session_handle);
925 return VPPCOM_EBADFD;
927 /* Flush pending accept events, if any */
928 while (clib_fifo_elts (session->accept_evts_fifo))
930 clib_fifo_sub2 (session->accept_evts_fifo, evt);
931 accepted_msg = &evt->accepted_msg;
932 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
933 vcl_send_session_accepted_reply (session->vpp_evt_q,
934 accepted_msg->context,
935 session->vpp_handle, -1);
937 clib_fifo_free (session->accept_evts_fifo);
939 vcl_send_session_unlisten (wrk, session);
941 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
942 session->vpp_handle);
943 vcl_evt (VCL_EVT_UNBIND, session);
945 session->vpp_handle = ~0;
946 session->session_state = STATE_DISCONNECT;
952 vppcom_session_disconnect (u32 session_handle)
954 vcl_worker_t *wrk = vcl_worker_get_current ();
955 svm_msg_q_t *vpp_evt_q;
956 vcl_session_t *session, *listen_session;
957 vcl_session_state_t state;
960 session = vcl_session_get_w_handle (wrk, session_handle);
962 return VPPCOM_EBADFD;
964 vpp_handle = session->vpp_handle;
965 state = session->session_state;
967 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
968 vpp_handle, state, vppcom_session_state_str (state));
970 if (PREDICT_FALSE (state & STATE_LISTEN))
972 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
973 return VPPCOM_EBADFD;
976 if (state & STATE_VPP_CLOSING)
978 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
979 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
981 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
982 session->session_index, vpp_handle);
986 VDBG (1, "session %u [0x%llx]: sending disconnect...",
987 session->session_index, vpp_handle);
988 vcl_send_session_disconnect (wrk, session);
991 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
993 listen_session = vcl_session_get (wrk, session->listener_index);
994 listen_session->n_accepted_sessions--;
1003 * Notify vpp of the disconnect and mark the worker as free. If we're the
1004 * last worker, do a full cleanup otherwise, since we're probably a forked
1005 * child, avoid syscalls as much as possible. We might've lost privileges.
1008 vppcom_app_exit (void)
1010 if (!pool_elts (vcm->workers))
1012 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1013 vcl_set_worker_index (~0);
1014 vcl_elog_stop (vcm);
1015 if (vec_len (vcm->workers) == 1)
1016 vppcom_disconnect_from_vpp ();
1018 vl_client_send_disconnect (1 /* vpp should cleanup */ );
1022 * VPPCOM Public API functions
1025 vppcom_app_create (char *app_name)
1027 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1032 VDBG (1, "already initialized");
1033 return VPPCOM_EEXIST;
1037 vppcom_cfg (&vcm->cfg);
1038 vcl_cfg = &vcm->cfg;
1040 vcm->main_cpu = pthread_self ();
1041 vcm->main_pid = getpid ();
1042 vcm->app_name = format (0, "%s", app_name);
1043 vppcom_init_error_string_table ();
1044 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1045 20 /* timeout in secs */ );
1046 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1047 clib_spinlock_init (&vcm->workers_lock);
1048 clib_rwlock_init (&vcm->segment_table_lock);
1049 atexit (vppcom_app_exit);
1051 /* Allocate default worker */
1052 vcl_worker_alloc_and_init ();
1054 /* API hookup and connect to VPP */
1055 vppcom_api_hookup ();
1056 vcl_elog_init (vcm);
1057 vcm->app_state = STATE_APP_START;
1058 rv = vppcom_connect_to_vpp (app_name);
1061 VERR ("couldn't connect to VPP!");
1064 VDBG (0, "sending session enable");
1065 rv = vppcom_app_session_enable ();
1068 VERR ("vppcom_app_session_enable() failed!");
1072 VDBG (0, "sending app attach");
1073 rv = vppcom_app_attach ();
1076 VERR ("vppcom_app_attach() failed!");
1080 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1081 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1087 vppcom_app_destroy (void)
1090 f64 orig_app_timeout;
1092 if (!pool_elts (vcm->workers))
1095 vcl_evt (VCL_EVT_DETACH, vcm);
1097 if (pool_elts (vcm->workers) == 1)
1099 vcl_send_app_detach (vcl_worker_get_current ());
1100 orig_app_timeout = vcm->cfg.app_timeout;
1101 vcm->cfg.app_timeout = 2.0;
1102 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1103 vcm->cfg.app_timeout = orig_app_timeout;
1104 if (PREDICT_FALSE (rv))
1105 VDBG (0, "application detach timed out! returning %d (%s)", rv,
1106 vppcom_retval_str (rv));
1107 vec_free (vcm->app_name);
1108 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1112 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1115 vcl_set_worker_index (~0);
1116 vcl_elog_stop (vcm);
1117 vl_client_disconnect_from_vlib ();
1121 vppcom_session_create (u8 proto, u8 is_nonblocking)
1123 vcl_worker_t *wrk = vcl_worker_get_current ();
1124 vcl_session_t *session;
1126 session = vcl_session_alloc (wrk);
1128 session->session_type = proto;
1129 session->session_state = STATE_START;
1130 session->vpp_handle = ~0;
1131 session->is_dgram = vcl_proto_is_dgram (proto);
1134 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1136 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1137 is_nonblocking, session_index);
1139 VDBG (0, "created session %u", session->session_index);
1141 return vcl_session_handle (session);
1145 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1146 vcl_session_handle_t sh, u8 do_disconnect)
1148 vcl_session_state_t state;
1149 u32 next_sh, vep_sh;
1154 is_vep = session->is_vep;
1155 next_sh = session->vep.next_sh;
1156 vep_sh = session->vep.vep_sh;
1157 state = session->session_state;
1158 vpp_handle = session->vpp_handle;
1160 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1164 while (next_sh != ~0)
1166 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1167 if (PREDICT_FALSE (rv < 0))
1168 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1169 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1170 vppcom_retval_str (rv));
1172 next_sh = session->vep.next_sh;
1177 if (session->is_vep_session)
1179 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1181 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1182 "failed! rv %d (%s)", session->session_index, vpp_handle,
1183 vep_sh, rv, vppcom_retval_str (rv));
1188 VDBG (1, "session %u [0x%llx] disconnect skipped",
1189 session->session_index, vpp_handle);
1193 if (state & STATE_LISTEN)
1195 rv = vppcom_session_unbind (sh);
1196 if (PREDICT_FALSE (rv < 0))
1197 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1198 "rv %d (%s)", session->session_index, vpp_handle, rv,
1199 vppcom_retval_str (rv));
1202 else if ((state & STATE_OPEN)
1203 || (vcl_session_is_connectable_listener (wrk, session)))
1205 rv = vppcom_session_disconnect (sh);
1206 if (PREDICT_FALSE (rv < 0))
1207 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1208 " rv %d (%s)", session->session_index, vpp_handle,
1209 rv, vppcom_retval_str (rv));
1211 else if (state == STATE_DISCONNECT)
1213 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1214 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1215 session->vpp_handle, 0);
1219 VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
1222 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1223 vcl_session_free (wrk, session);
1224 vcl_evt (VCL_EVT_CLOSE, session, rv);
1230 vppcom_session_close (uint32_t session_handle)
1232 vcl_worker_t *wrk = vcl_worker_get_current ();
1233 vcl_session_t *session;
1235 session = vcl_session_get_w_handle (wrk, session_handle);
1237 return VPPCOM_EBADFD;
1238 return vcl_session_cleanup (wrk, session, session_handle,
1239 1 /* do_disconnect */ );
1243 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1245 vcl_worker_t *wrk = vcl_worker_get_current ();
1246 vcl_session_t *session = 0;
1249 return VPPCOM_EINVAL;
1251 session = vcl_session_get_w_handle (wrk, session_handle);
1253 return VPPCOM_EBADFD;
1255 if (session->is_vep)
1257 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1258 session->session_index);
1259 return VPPCOM_EBADFD;
1262 session->transport.is_ip4 = ep->is_ip4;
1264 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1265 sizeof (ip4_address_t));
1267 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1268 sizeof (ip6_address_t));
1269 session->transport.lcl_port = ep->port;
1271 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1272 "proto %s", session->session_index, session_handle,
1273 session->transport.is_ip4 ? "IPv4" : "IPv6",
1274 format_ip46_address, &session->transport.lcl_ip,
1275 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1276 clib_net_to_host_u16 (session->transport.lcl_port),
1277 vppcom_proto_str (session->session_type));
1278 vcl_evt (VCL_EVT_BIND, session);
1280 if (session->session_type == VPPCOM_PROTO_UDP)
1281 vppcom_session_listen (session_handle, 10);
1287 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1289 vcl_worker_t *wrk = vcl_worker_get_current ();
1290 vcl_session_t *listen_session = 0;
1291 u64 listen_vpp_handle;
1294 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1295 if (!listen_session || listen_session->is_vep)
1296 return VPPCOM_EBADFD;
1298 if (q_len == 0 || q_len == ~0)
1299 q_len = vcm->cfg.listen_queue_size;
1301 listen_vpp_handle = listen_session->vpp_handle;
1302 if (listen_session->session_state & STATE_LISTEN)
1304 VDBG (0, "session %u [0x%llx]: already in listen state!",
1305 listen_sh, listen_vpp_handle);
1309 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1312 * Send listen request to vpp and wait for reply
1314 vcl_send_session_listen (wrk, listen_session);
1315 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1317 vcm->cfg.session_timeout);
1319 if (PREDICT_FALSE (rv))
1321 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1322 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1323 listen_sh, listen_session->vpp_handle, rv,
1324 vppcom_retval_str (rv));
1332 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1336 vcl_worker_t *wrk = vcl_worker_get_current ();
1337 vcl_session_t *session = 0;
1339 session = vcl_session_get_w_handle (wrk, session_handle);
1341 return VPPCOM_EBADFD;
1343 if (cert_len == 0 || cert_len == ~0)
1344 return VPPCOM_EBADFD;
1347 * Send listen request to vpp and wait for reply
1349 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1350 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1351 vcl_wait_for_app_state_change (STATE_APP_READY);
1357 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1361 vcl_worker_t *wrk = vcl_worker_get_current ();
1362 vcl_session_t *session = 0;
1364 session = vcl_session_get_w_handle (wrk, session_handle);
1366 return VPPCOM_EBADFD;
1368 if (key_len == 0 || key_len == ~0)
1369 return VPPCOM_EBADFD;
1371 vppcom_send_application_tls_key_add (session, key, key_len);
1372 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1373 vcl_wait_for_app_state_change (STATE_APP_READY);
1378 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1382 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1384 return VPPCOM_EBADFD;
1387 if ((ls->session_state != STATE_LISTEN)
1388 && (!vcl_session_is_connectable_listener (wrk, ls)))
1391 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1392 " (%s)", ls->vpp_handle, ls->session_state,
1393 vppcom_session_state_str (ls->session_state));
1394 return VPPCOM_EBADFD;
1400 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1402 if (!strcmp (proto_str, "TCP"))
1403 *proto = VPPCOM_PROTO_TCP;
1404 else if (!strcmp (proto_str, "tcp"))
1405 *proto = VPPCOM_PROTO_TCP;
1406 else if (!strcmp (proto_str, "UDP"))
1407 *proto = VPPCOM_PROTO_UDP;
1408 else if (!strcmp (proto_str, "udp"))
1409 *proto = VPPCOM_PROTO_UDP;
1410 else if (!strcmp (proto_str, "UDPC"))
1411 *proto = VPPCOM_PROTO_UDPC;
1412 else if (!strcmp (proto_str, "udpc"))
1413 *proto = VPPCOM_PROTO_UDPC;
1414 else if (!strcmp (proto_str, "SCTP"))
1415 *proto = VPPCOM_PROTO_SCTP;
1416 else if (!strcmp (proto_str, "sctp"))
1417 *proto = VPPCOM_PROTO_SCTP;
1418 else if (!strcmp (proto_str, "TLS"))
1419 *proto = VPPCOM_PROTO_TLS;
1420 else if (!strcmp (proto_str, "tls"))
1421 *proto = VPPCOM_PROTO_TLS;
1422 else if (!strcmp (proto_str, "QUIC"))
1423 *proto = VPPCOM_PROTO_QUIC;
1424 else if (!strcmp (proto_str, "quic"))
1425 *proto = VPPCOM_PROTO_QUIC;
1432 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1435 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1436 vcl_worker_t *wrk = vcl_worker_get_current ();
1437 session_accepted_msg_t accepted_msg;
1438 vcl_session_t *listen_session = 0;
1439 vcl_session_t *client_session = 0;
1440 vcl_session_msg_t *evt;
1441 svm_msg_q_msg_t msg;
1446 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1447 if (!listen_session)
1448 return VPPCOM_EBADFD;
1450 listen_session_index = listen_session->session_index;
1451 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1454 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1456 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1457 accept_flags = evt->flags;
1458 accepted_msg = evt->accepted_msg;
1462 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1463 VCL_SESS_ATTR_NONBLOCK);
1464 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1465 return VPPCOM_EAGAIN;
1469 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1470 return VPPCOM_EAGAIN;
1472 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1473 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1475 VDBG (0, "discarded event: %u", e->event_type);
1476 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1479 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1480 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1486 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1487 listen_session_index);
1488 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1489 return VPPCOM_ECONNABORTED;
1491 listen_session = vcl_session_get (wrk, listen_session_index);
1492 client_session = vcl_session_get (wrk, client_session_index);
1494 if (flags & O_NONBLOCK)
1495 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1497 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1498 " flags %d, is_nonblocking %u", listen_session->session_index,
1499 listen_session->vpp_handle, client_session_index,
1500 client_session->vpp_handle, flags,
1501 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1505 ep->is_ip4 = client_session->transport.is_ip4;
1506 ep->port = client_session->transport.rmt_port;
1507 if (client_session->transport.is_ip4)
1508 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1509 sizeof (ip4_address_t));
1511 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1512 sizeof (ip6_address_t));
1515 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1516 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1517 client_session_index, client_session->vpp_handle,
1518 format_ip46_address, &client_session->transport.rmt_ip,
1519 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1520 clib_net_to_host_u16 (client_session->transport.rmt_port),
1521 format_ip46_address, &client_session->transport.lcl_ip,
1522 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1523 clib_net_to_host_u16 (client_session->transport.lcl_port));
1524 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1525 client_session_index);
1528 * Session might have been closed already
1532 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1533 client_session->session_state = STATE_VPP_CLOSING;
1534 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1535 client_session->session_state = STATE_DISCONNECT;
1537 return vcl_session_handle (client_session);
1541 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1543 vcl_worker_t *wrk = vcl_worker_get_current ();
1544 vcl_session_t *session = 0;
1548 session = vcl_session_get_w_handle (wrk, session_handle);
1550 return VPPCOM_EBADFD;
1551 session_index = session->session_index;
1553 if (PREDICT_FALSE (session->is_vep))
1555 VDBG (0, "ERROR: cannot connect epoll session %u!",
1556 session->session_index);
1557 return VPPCOM_EBADFD;
1560 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1562 VDBG (0, "session handle %u [0x%llx]: session already "
1563 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1564 session_handle, session->vpp_handle,
1565 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1566 &session->transport.rmt_ip, session->transport.is_ip4 ?
1567 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1568 clib_net_to_host_u16 (session->transport.rmt_port),
1569 vppcom_proto_str (session->session_type), session->session_state,
1570 vppcom_session_state_str (session->session_state));
1574 session->transport.is_ip4 = server_ep->is_ip4;
1575 if (session->transport.is_ip4)
1576 clib_memcpy_fast (&session->transport.rmt_ip.ip4, server_ep->ip,
1577 sizeof (ip4_address_t));
1579 clib_memcpy_fast (&session->transport.rmt_ip.ip6, server_ep->ip,
1580 sizeof (ip6_address_t));
1581 session->transport.rmt_port = server_ep->port;
1582 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1584 VDBG (0, "session handle %u: connecting to server %s %U "
1585 "port %d proto %s", session_handle,
1586 session->transport.is_ip4 ? "IPv4" : "IPv6",
1587 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));
1593 vcl_send_session_connect (wrk, session);
1595 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1596 return VPPCOM_EINPROGRESS;
1599 * Wait for reply from vpp if blocking
1601 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1602 vcm->cfg.session_timeout);
1604 session = vcl_session_get (wrk, session_index);
1605 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1606 session->vpp_handle, rv ? "failed" : "succeeded");
1612 vppcom_session_stream_connect (uint32_t session_handle,
1613 uint32_t parent_session_handle)
1615 vcl_worker_t *wrk = vcl_worker_get_current ();
1616 vcl_session_t *session, *parent_session;
1617 u32 session_index, parent_session_index;
1620 session = vcl_session_get_w_handle (wrk, session_handle);
1622 return VPPCOM_EBADFD;
1623 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1624 if (!parent_session)
1625 return VPPCOM_EBADFD;
1627 session_index = session->session_index;
1628 parent_session_index = parent_session->session_index;
1629 if (PREDICT_FALSE (session->is_vep))
1631 VDBG (0, "ERROR: cannot connect epoll session %u!",
1632 session->session_index);
1633 return VPPCOM_EBADFD;
1636 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1638 VDBG (0, "session handle %u [0x%llx]: session already "
1639 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1640 session_handle, session->vpp_handle,
1641 parent_session_handle, parent_session->vpp_handle,
1642 vppcom_proto_str (session->session_type), session->session_state,
1643 vppcom_session_state_str (session->session_state));
1647 /* Connect to quic session specifics */
1648 session->transport.is_ip4 = parent_session->transport.is_ip4;
1649 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1650 session->transport.rmt_port = 0;
1651 session->parent_handle = parent_session->vpp_handle;
1653 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1654 session_handle, parent_session_handle, parent_session->vpp_handle);
1657 * Send connect request and wait for reply from vpp
1659 vcl_send_session_connect (wrk, session);
1660 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1661 vcm->cfg.session_timeout);
1663 session->listener_index = parent_session_index;
1664 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1666 parent_session->n_accepted_sessions++;
1668 session = vcl_session_get (wrk, session_index);
1669 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1670 session->vpp_handle, rv ? "failed" : "succeeded");
1676 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1678 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1682 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1685 vcl_worker_t *wrk = vcl_worker_get_current ();
1686 int n_read = 0, is_nonblocking;
1687 vcl_session_t *s = 0;
1688 svm_fifo_t *rx_fifo;
1689 svm_msg_q_msg_t msg;
1694 if (PREDICT_FALSE (!buf))
1695 return VPPCOM_EINVAL;
1697 s = vcl_session_get_w_handle (wrk, session_handle);
1698 if (PREDICT_FALSE (!s || s->is_vep))
1699 return VPPCOM_EBADFD;
1701 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1703 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1704 s->session_index, s->vpp_handle, s->session_state,
1705 vppcom_session_state_str (s->session_state));
1706 return vcl_session_closed_error (s);
1709 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1710 is_ct = vcl_session_is_ct (s);
1711 mq = wrk->app_event_queue;
1712 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1715 if (svm_fifo_is_empty_cons (rx_fifo))
1719 svm_fifo_unset_event (s->rx_fifo);
1720 return VPPCOM_EWOULDBLOCK;
1722 while (svm_fifo_is_empty_cons (rx_fifo))
1724 if (vcl_session_is_closing (s))
1725 return vcl_session_closing_error (s);
1727 svm_fifo_unset_event (s->rx_fifo);
1728 svm_msg_q_lock (mq);
1729 if (svm_msg_q_is_empty (mq))
1730 svm_msg_q_wait (mq);
1732 svm_msg_q_sub_w_lock (mq, &msg);
1733 e = svm_msg_q_msg_data (mq, &msg);
1734 svm_msg_q_unlock (mq);
1735 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1736 vcl_handle_mq_event (wrk, e);
1737 svm_msg_q_free_msg (mq, &msg);
1742 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1744 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1746 if (svm_fifo_is_empty_cons (rx_fifo))
1747 svm_fifo_unset_event (s->rx_fifo);
1749 /* Cut-through sessions might request tx notifications on rx fifos */
1750 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1752 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1753 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1754 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1757 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1758 s->vpp_handle, n_read, rx_fifo);
1764 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1766 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1770 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1772 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1776 vppcom_session_read_segments (uint32_t session_handle,
1777 vppcom_data_segments_t ds)
1779 vcl_worker_t *wrk = vcl_worker_get_current ();
1780 int n_read = 0, is_nonblocking;
1781 vcl_session_t *s = 0;
1782 svm_fifo_t *rx_fifo;
1783 svm_msg_q_msg_t msg;
1788 s = vcl_session_get_w_handle (wrk, session_handle);
1789 if (PREDICT_FALSE (!s || s->is_vep))
1790 return VPPCOM_EBADFD;
1792 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1793 return vcl_session_closed_error (s);
1795 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1796 is_ct = vcl_session_is_ct (s);
1797 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1798 rx_fifo = s->rx_fifo;
1802 svm_fifo_unset_event (s->rx_fifo);
1804 if (svm_fifo_is_empty_cons (rx_fifo))
1808 svm_fifo_unset_event (rx_fifo);
1809 return VPPCOM_EWOULDBLOCK;
1811 while (svm_fifo_is_empty_cons (rx_fifo))
1813 if (vcl_session_is_closing (s))
1814 return vcl_session_closing_error (s);
1816 svm_fifo_unset_event (rx_fifo);
1817 svm_msg_q_lock (mq);
1818 if (svm_msg_q_is_empty (mq))
1819 svm_msg_q_wait (mq);
1821 svm_msg_q_sub_w_lock (mq, &msg);
1822 e = svm_msg_q_msg_data (mq, &msg);
1823 svm_msg_q_unlock (mq);
1824 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1825 vcl_handle_mq_event (wrk, e);
1826 svm_msg_q_free_msg (mq, &msg);
1830 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1831 svm_fifo_unset_event (rx_fifo);
1837 vppcom_session_free_segments (uint32_t session_handle,
1838 vppcom_data_segments_t ds)
1840 vcl_worker_t *wrk = vcl_worker_get_current ();
1843 s = vcl_session_get_w_handle (wrk, session_handle);
1844 if (PREDICT_FALSE (!s || s->is_vep))
1847 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1851 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1853 u32 first_copy = clib_min (ds[0].len, max_bytes);
1854 clib_memcpy_fast (buf, ds[0].data, first_copy);
1855 if (first_copy < max_bytes)
1857 clib_memcpy_fast (buf + first_copy, ds[1].data,
1858 clib_min (ds[1].len, max_bytes - first_copy));
1864 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1866 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1870 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1873 vcl_worker_t *wrk = vcl_worker_get_current ();
1874 int n_write, is_nonblocking;
1875 vcl_session_t *s = 0;
1876 session_evt_type_t et;
1877 svm_msg_q_msg_t msg;
1878 svm_fifo_t *tx_fifo;
1883 if (PREDICT_FALSE (!buf))
1884 return VPPCOM_EINVAL;
1886 s = vcl_session_get_w_handle (wrk, session_handle);
1887 if (PREDICT_FALSE (!s))
1888 return VPPCOM_EBADFD;
1890 if (PREDICT_FALSE (s->is_vep))
1892 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1893 " session!", s->session_index, s->vpp_handle);
1894 return VPPCOM_EBADFD;
1897 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1899 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1900 s->session_index, s->vpp_handle, s->session_state,
1901 vppcom_session_state_str (s->session_state));
1902 return vcl_session_closed_error (s);;
1905 is_ct = vcl_session_is_ct (s);
1906 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1907 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1909 mq = wrk->app_event_queue;
1910 if (svm_fifo_is_full_prod (tx_fifo))
1914 return VPPCOM_EWOULDBLOCK;
1916 while (svm_fifo_is_full_prod (tx_fifo))
1918 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
1919 if (vcl_session_is_closing (s))
1920 return vcl_session_closing_error (s);
1921 svm_msg_q_lock (mq);
1922 if (svm_msg_q_is_empty (mq))
1923 svm_msg_q_wait (mq);
1925 svm_msg_q_sub_w_lock (mq, &msg);
1926 e = svm_msg_q_msg_data (mq, &msg);
1927 svm_msg_q_unlock (mq);
1929 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1930 vcl_handle_mq_event (wrk, e);
1931 svm_msg_q_free_msg (mq, &msg);
1935 et = SESSION_IO_EVT_TX;
1936 if (is_flush && !is_ct)
1937 et = SESSION_IO_EVT_TX_FLUSH;
1940 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1941 s->vpp_evt_q, buf, n, et,
1942 0 /* do_evt */ , SVM_Q_WAIT);
1944 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1945 0 /* do_evt */ , SVM_Q_WAIT);
1947 if (svm_fifo_set_event (s->tx_fifo))
1948 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
1951 ASSERT (n_write > 0);
1953 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1954 s->vpp_handle, n_write);
1960 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1962 return vppcom_session_write_inline (session_handle, buf, n,
1967 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1969 return vppcom_session_write_inline (session_handle, buf, n,
1973 #define vcl_fifo_rx_evt_valid_or_break(_s) \
1974 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
1976 if (!vcl_session_is_ct (_s)) \
1978 svm_fifo_unset_event (_s->rx_fifo); \
1979 if (svm_fifo_is_empty (_s->rx_fifo)) \
1982 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1984 svm_fifo_unset_event (_s->ct_rx_fifo); \
1985 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1991 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1992 unsigned long n_bits, unsigned long *read_map,
1993 unsigned long *write_map,
1994 unsigned long *except_map, u32 * bits_set)
1996 session_disconnected_msg_t *disconnected_msg;
1997 session_connected_msg_t *connected_msg;
1998 vcl_session_t *session;
2001 switch (e->event_type)
2003 case SESSION_IO_EVT_RX:
2004 sid = e->session_index;
2005 session = vcl_session_get (wrk, sid);
2008 vcl_fifo_rx_evt_valid_or_break (session);
2009 if (sid < n_bits && read_map)
2011 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2015 case SESSION_IO_EVT_TX:
2016 sid = e->session_index;
2017 session = vcl_session_get (wrk, sid);
2020 if (sid < n_bits && write_map)
2022 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2026 case SESSION_CTRL_EVT_ACCEPTED:
2027 session = vcl_session_accepted (wrk,
2028 (session_accepted_msg_t *) e->data);
2031 sid = session->session_index;
2032 if (sid < n_bits && read_map)
2034 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2038 case SESSION_CTRL_EVT_CONNECTED:
2039 connected_msg = (session_connected_msg_t *) e->data;
2040 sid = vcl_session_connected_handler (wrk, connected_msg);
2041 if (sid == VCL_INVALID_SESSION_INDEX)
2043 if (sid < n_bits && write_map)
2045 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2049 case SESSION_CTRL_EVT_DISCONNECTED:
2050 disconnected_msg = (session_disconnected_msg_t *) e->data;
2051 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2054 sid = session->session_index;
2055 if (sid < n_bits && except_map)
2057 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2061 case SESSION_CTRL_EVT_RESET:
2062 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2063 if (sid < n_bits && except_map)
2065 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2069 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2070 vcl_session_unlisten_reply_handler (wrk, e->data);
2072 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2073 vcl_session_worker_update_reply_handler (wrk, e->data);
2075 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2076 vcl_session_req_worker_update_handler (wrk, e->data);
2079 clib_warning ("unhandled: %u", e->event_type);
2085 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2086 unsigned long n_bits, unsigned long *read_map,
2087 unsigned long *write_map, unsigned long *except_map,
2088 double time_to_wait, u32 * bits_set)
2090 svm_msg_q_msg_t *msg;
2094 svm_msg_q_lock (mq);
2095 if (svm_msg_q_is_empty (mq))
2099 svm_msg_q_unlock (mq);
2105 svm_msg_q_unlock (mq);
2108 else if (time_to_wait < 0)
2110 svm_msg_q_wait (mq);
2114 if (svm_msg_q_timedwait (mq, time_to_wait))
2116 svm_msg_q_unlock (mq);
2121 vcl_mq_dequeue_batch (wrk, mq, ~0);
2122 svm_msg_q_unlock (mq);
2124 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2126 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2127 e = svm_msg_q_msg_data (mq, msg);
2128 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2129 except_map, bits_set);
2130 svm_msg_q_free_msg (mq, msg);
2132 vec_reset_length (wrk->mq_msg_vector);
2133 vcl_handle_pending_wrk_updates (wrk);
2138 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2139 vcl_si_set * read_map, vcl_si_set * write_map,
2140 vcl_si_set * except_map, double time_to_wait,
2143 double wait = 0, start = 0;
2147 wait = time_to_wait;
2148 start = clib_time_now (&wrk->clib_time);
2153 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2154 write_map, except_map, wait, bits_set);
2160 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2168 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2169 vcl_si_set * read_map, vcl_si_set * write_map,
2170 vcl_si_set * except_map, double time_to_wait,
2173 vcl_mq_evt_conn_t *mqc;
2174 int __clib_unused n_read;
2178 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2179 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2180 vec_len (wrk->mq_events), time_to_wait);
2181 for (i = 0; i < n_mq_evts; i++)
2183 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2184 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2185 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2186 except_map, 0, bits_set);
2189 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2193 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2194 vcl_si_set * except_map, double time_to_wait)
2196 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2197 vcl_worker_t *wrk = vcl_worker_get_current ();
2198 vcl_session_t *session = 0;
2201 if (n_bits && read_map)
2203 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2204 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2205 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2206 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2208 if (n_bits && write_map)
2210 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2211 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2212 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2213 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2215 if (n_bits && except_map)
2217 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2218 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2219 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2220 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2230 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2231 if (!(session = vcl_session_get (wrk, sid)))
2233 if (except_map && sid < minbits)
2234 clib_bitmap_set_no_check (except_map, sid, 1);
2238 rv = svm_fifo_is_full_prod (session->tx_fifo);
2241 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2245 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2252 clib_bitmap_foreach (sid, wrk->rd_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 rv = vcl_session_read_ready (session);
2263 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2271 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2273 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2274 read_map, write_map, except_map, &bits_set);
2276 vec_reset_length (wrk->unhandled_evts_vector);
2278 if (vcm->cfg.use_mq_eventfd)
2279 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2280 time_to_wait, &bits_set);
2282 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2283 time_to_wait, &bits_set);
2289 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2291 vcl_session_t *session;
2292 vppcom_epoll_t *vep;
2293 u32 sh = vep_handle;
2295 if (VPPCOM_DEBUG <= 2)
2298 session = vcl_session_get_w_handle (wrk, vep_handle);
2299 if (PREDICT_FALSE (!session))
2301 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2304 if (PREDICT_FALSE (!session->is_vep))
2306 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2309 vep = &session->vep;
2310 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2313 " is_vep_session = %u\n"
2314 " next_sh = 0x%x (%u)\n"
2315 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2316 vep->next_sh, vep->next_sh);
2318 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2320 session = vcl_session_get_w_handle (wrk, sh);
2321 if (PREDICT_FALSE (!session))
2323 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2326 if (PREDICT_FALSE (session->is_vep))
2328 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2330 else if (PREDICT_FALSE (!session->is_vep_session))
2332 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2335 vep = &session->vep;
2336 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2337 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2338 sh, session->vep.vep_sh, vep_handle);
2339 if (session->is_vep_session)
2341 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2343 " next_sh = 0x%x (%u)\n"
2344 " prev_sh = 0x%x (%u)\n"
2345 " vep_sh = 0x%x (%u)\n"
2346 " ev.events = 0x%x\n"
2347 " ev.data.u64 = 0x%llx\n"
2350 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2351 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2352 vep->ev.data.u64, vep->et_mask);
2357 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2361 vppcom_epoll_create (void)
2363 vcl_worker_t *wrk = vcl_worker_get_current ();
2364 vcl_session_t *vep_session;
2366 vep_session = vcl_session_alloc (wrk);
2368 vep_session->is_vep = 1;
2369 vep_session->vep.vep_sh = ~0;
2370 vep_session->vep.next_sh = ~0;
2371 vep_session->vep.prev_sh = ~0;
2372 vep_session->vpp_handle = ~0;
2374 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2375 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2377 return vcl_session_handle (vep_session);
2381 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2382 struct epoll_event *event)
2384 vcl_worker_t *wrk = vcl_worker_get_current ();
2385 vcl_session_t *vep_session;
2386 vcl_session_t *session;
2389 if (vep_handle == session_handle)
2391 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2392 return VPPCOM_EINVAL;
2395 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2396 if (PREDICT_FALSE (!vep_session))
2398 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2399 return VPPCOM_EBADFD;
2401 if (PREDICT_FALSE (!vep_session->is_vep))
2403 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2404 return VPPCOM_EINVAL;
2407 ASSERT (vep_session->vep.vep_sh == ~0);
2408 ASSERT (vep_session->vep.prev_sh == ~0);
2410 session = vcl_session_get_w_handle (wrk, session_handle);
2411 if (PREDICT_FALSE (!session))
2413 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2414 return VPPCOM_EBADFD;
2416 if (PREDICT_FALSE (session->is_vep))
2418 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2419 return VPPCOM_EINVAL;
2425 if (PREDICT_FALSE (!event))
2427 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2428 return VPPCOM_EINVAL;
2430 if (vep_session->vep.next_sh != ~0)
2432 vcl_session_t *next_session;
2433 next_session = vcl_session_get_w_handle (wrk,
2434 vep_session->vep.next_sh);
2435 if (PREDICT_FALSE (!next_session))
2437 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2438 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2439 return VPPCOM_EBADFD;
2441 ASSERT (next_session->vep.prev_sh == vep_handle);
2442 next_session->vep.prev_sh = session_handle;
2444 session->vep.next_sh = vep_session->vep.next_sh;
2445 session->vep.prev_sh = vep_handle;
2446 session->vep.vep_sh = vep_handle;
2447 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2448 session->vep.ev = *event;
2449 session->is_vep = 0;
2450 session->is_vep_session = 1;
2451 vep_session->vep.next_sh = session_handle;
2453 if (session->tx_fifo)
2454 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2455 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2457 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2458 vep_handle, session_handle, event->events, event->data.u64);
2459 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2463 if (PREDICT_FALSE (!event))
2465 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2469 else if (PREDICT_FALSE (!session->is_vep_session))
2471 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2475 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2477 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2478 session_handle, session->vep.vep_sh, vep_handle);
2482 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2483 session->vep.ev = *event;
2484 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2485 vep_handle, session_handle, event->events, event->data.u64);
2489 if (PREDICT_FALSE (!session->is_vep_session))
2491 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2495 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2497 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2498 session_handle, session->vep.vep_sh, vep_handle);
2503 if (session->vep.prev_sh == vep_handle)
2504 vep_session->vep.next_sh = session->vep.next_sh;
2507 vcl_session_t *prev_session;
2508 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2509 if (PREDICT_FALSE (!prev_session))
2511 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2512 session->vep.prev_sh, session_handle);
2513 return VPPCOM_EBADFD;
2515 ASSERT (prev_session->vep.next_sh == session_handle);
2516 prev_session->vep.next_sh = session->vep.next_sh;
2518 if (session->vep.next_sh != ~0)
2520 vcl_session_t *next_session;
2521 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2522 if (PREDICT_FALSE (!next_session))
2524 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2525 session->vep.next_sh, session_handle);
2526 return VPPCOM_EBADFD;
2528 ASSERT (next_session->vep.prev_sh == session_handle);
2529 next_session->vep.prev_sh = session->vep.prev_sh;
2532 memset (&session->vep, 0, sizeof (session->vep));
2533 session->vep.next_sh = ~0;
2534 session->vep.prev_sh = ~0;
2535 session->vep.vep_sh = ~0;
2536 session->is_vep_session = 0;
2538 if (session->tx_fifo)
2539 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2541 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2543 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2547 VDBG (0, "Invalid operation (%d)!", op);
2551 vep_verify_epoll_chain (wrk, vep_handle);
2558 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2559 struct epoll_event *events, u32 * num_ev)
2561 session_disconnected_msg_t *disconnected_msg;
2562 session_connected_msg_t *connected_msg;
2563 u32 sid = ~0, session_events;
2564 u64 session_evt_data = ~0;
2565 vcl_session_t *session;
2568 switch (e->event_type)
2570 case SESSION_IO_EVT_RX:
2571 sid = e->session_index;
2572 if (!(session = vcl_session_get (wrk, sid)))
2574 vcl_fifo_rx_evt_valid_or_break (session);
2575 session_events = session->vep.ev.events;
2576 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2579 events[*num_ev].events |= EPOLLIN;
2580 session_evt_data = session->vep.ev.data.u64;
2581 session->has_rx_evt = 1;
2583 case SESSION_IO_EVT_TX:
2584 sid = e->session_index;
2585 if (!(session = vcl_session_get (wrk, sid)))
2587 session_events = session->vep.ev.events;
2588 if (!(EPOLLOUT & session_events))
2591 events[*num_ev].events |= EPOLLOUT;
2592 session_evt_data = session->vep.ev.data.u64;
2593 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2595 case SESSION_CTRL_EVT_ACCEPTED:
2596 session = vcl_session_accepted (wrk,
2597 (session_accepted_msg_t *) e->data);
2601 session_events = session->vep.ev.events;
2602 if (!(EPOLLIN & session_events))
2606 events[*num_ev].events |= EPOLLIN;
2607 session_evt_data = session->vep.ev.data.u64;
2609 case SESSION_CTRL_EVT_CONNECTED:
2610 connected_msg = (session_connected_msg_t *) e->data;
2611 vcl_session_connected_handler (wrk, connected_msg);
2612 /* Generate EPOLLOUT because there's no connected event */
2613 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2614 if (!(session = vcl_session_get (wrk, sid)))
2616 session_events = session->vep.ev.events;
2617 if (!(EPOLLOUT & session_events))
2620 events[*num_ev].events |= EPOLLOUT;
2621 session_evt_data = session->vep.ev.data.u64;
2623 case SESSION_CTRL_EVT_DISCONNECTED:
2624 disconnected_msg = (session_disconnected_msg_t *) e->data;
2625 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2628 session_events = session->vep.ev.events;
2629 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2632 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2633 session_evt_data = session->vep.ev.data.u64;
2635 case SESSION_CTRL_EVT_RESET:
2636 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2637 if (!(session = vcl_session_get (wrk, sid)))
2639 session_events = session->vep.ev.events;
2640 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2643 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2644 session_evt_data = session->vep.ev.data.u64;
2646 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2647 vcl_session_unlisten_reply_handler (wrk, e->data);
2649 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2650 vcl_session_req_worker_update_handler (wrk, e->data);
2652 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2653 vcl_session_worker_update_reply_handler (wrk, e->data);
2656 VDBG (0, "unhandled: %u", e->event_type);
2662 events[*num_ev].data.u64 = session_evt_data;
2663 if (EPOLLONESHOT & session_events)
2665 session = vcl_session_get (wrk, sid);
2666 session->vep.ev.events = 0;
2673 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2674 struct epoll_event *events, u32 maxevents,
2675 double wait_for_time, u32 * num_ev)
2677 svm_msg_q_msg_t *msg;
2681 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2682 goto handle_dequeued;
2684 svm_msg_q_lock (mq);
2685 if (svm_msg_q_is_empty (mq))
2689 svm_msg_q_unlock (mq);
2692 else if (wait_for_time < 0)
2694 svm_msg_q_wait (mq);
2698 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2700 svm_msg_q_unlock (mq);
2705 ASSERT (maxevents > *num_ev);
2706 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2707 svm_msg_q_unlock (mq);
2710 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2712 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2713 e = svm_msg_q_msg_data (mq, msg);
2714 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2715 svm_msg_q_free_msg (mq, msg);
2717 vec_reset_length (wrk->mq_msg_vector);
2718 vcl_handle_pending_wrk_updates (wrk);
2723 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2724 int maxevents, u32 n_evts, double wait_for_time)
2726 double wait = 0, start = 0, now;
2730 wait = wait_for_time;
2731 start = clib_time_now (&wrk->clib_time);
2736 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2743 now = clib_time_now (&wrk->clib_time);
2744 wait -= now - start;
2753 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2754 int maxevents, u32 n_evts, double wait_for_time)
2756 vcl_mq_evt_conn_t *mqc;
2757 int __clib_unused n_read;
2761 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2763 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2764 vec_len (wrk->mq_events), wait_for_time);
2765 for (i = 0; i < n_mq_evts; i++)
2767 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2768 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2769 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2771 if (!n_evts && n_mq_evts > 0)
2774 return (int) n_evts;
2778 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2779 int maxevents, double wait_for_time)
2781 vcl_worker_t *wrk = vcl_worker_get_current ();
2782 vcl_session_t *vep_session;
2786 if (PREDICT_FALSE (maxevents <= 0))
2788 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2789 return VPPCOM_EINVAL;
2792 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2794 return VPPCOM_EBADFD;
2796 if (PREDICT_FALSE (!vep_session->is_vep))
2798 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2799 return VPPCOM_EINVAL;
2802 memset (events, 0, sizeof (*events) * maxevents);
2804 if (vec_len (wrk->unhandled_evts_vector))
2806 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2808 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2810 if (n_evts == maxevents)
2812 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
2816 vec_reset_length (wrk->unhandled_evts_vector);
2819 if (vcm->cfg.use_mq_eventfd)
2820 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2823 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2828 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2829 void *buffer, uint32_t * buflen)
2831 vcl_worker_t *wrk = vcl_worker_get_current ();
2832 vcl_session_t *session;
2834 u32 *flags = buffer, tmp_flags = 0;
2835 vppcom_endpt_t *ep = buffer;
2837 session = vcl_session_get_w_handle (wrk, session_handle);
2839 return VPPCOM_EBADFD;
2843 case VPPCOM_ATTR_GET_NREAD:
2844 rv = vcl_session_read_ready (session);
2845 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
2849 case VPPCOM_ATTR_GET_NWRITE:
2850 rv = vcl_session_write_ready (session);
2851 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
2855 case VPPCOM_ATTR_GET_FLAGS:
2856 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2858 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2859 VCL_SESS_ATTR_NONBLOCK));
2860 *buflen = sizeof (*flags);
2861 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
2862 "is_nonblocking = %u", session_handle, *flags,
2863 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2869 case VPPCOM_ATTR_SET_FLAGS:
2870 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2872 if (*flags & O_NONBLOCK)
2873 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2875 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2877 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
2878 " is_nonblocking = %u", session_handle, *flags,
2879 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2885 case VPPCOM_ATTR_GET_PEER_ADDR:
2886 if (PREDICT_TRUE (buffer && buflen &&
2887 (*buflen >= sizeof (*ep)) && ep->ip))
2889 ep->is_ip4 = session->transport.is_ip4;
2890 ep->port = session->transport.rmt_port;
2891 if (session->transport.is_ip4)
2892 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2893 sizeof (ip4_address_t));
2895 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2896 sizeof (ip6_address_t));
2897 *buflen = sizeof (*ep);
2898 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
2899 "addr = %U, port %u", session_handle, ep->is_ip4,
2900 format_ip46_address, &session->transport.rmt_ip,
2901 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2902 clib_net_to_host_u16 (ep->port));
2908 case VPPCOM_ATTR_GET_LCL_ADDR:
2909 if (PREDICT_TRUE (buffer && buflen &&
2910 (*buflen >= sizeof (*ep)) && ep->ip))
2912 ep->is_ip4 = session->transport.is_ip4;
2913 ep->port = session->transport.lcl_port;
2914 if (session->transport.is_ip4)
2915 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2916 sizeof (ip4_address_t));
2918 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2919 sizeof (ip6_address_t));
2920 *buflen = sizeof (*ep);
2921 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2922 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2923 &session->transport.lcl_ip,
2924 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2925 clib_net_to_host_u16 (ep->port));
2931 case VPPCOM_ATTR_GET_LIBC_EPFD:
2932 rv = session->libc_epfd;
2933 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
2936 case VPPCOM_ATTR_SET_LIBC_EPFD:
2937 if (PREDICT_TRUE (buffer && buflen &&
2938 (*buflen == sizeof (session->libc_epfd))))
2940 session->libc_epfd = *(int *) buffer;
2941 *buflen = sizeof (session->libc_epfd);
2943 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
2944 session->libc_epfd, *buflen);
2950 case VPPCOM_ATTR_GET_PROTOCOL:
2951 if (buffer && buflen && (*buflen >= sizeof (int)))
2953 *(int *) buffer = session->session_type;
2954 *buflen = sizeof (int);
2956 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2957 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
2963 case VPPCOM_ATTR_GET_LISTEN:
2964 if (buffer && buflen && (*buflen >= sizeof (int)))
2966 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2967 VCL_SESS_ATTR_LISTEN);
2968 *buflen = sizeof (int);
2970 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
2977 case VPPCOM_ATTR_GET_ERROR:
2978 if (buffer && buflen && (*buflen >= sizeof (int)))
2980 *(int *) buffer = 0;
2981 *buflen = sizeof (int);
2983 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2984 *(int *) buffer, *buflen);
2990 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2991 if (buffer && buflen && (*buflen >= sizeof (u32)))
2995 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2996 session->tx_fifo ? session->tx_fifo->nitems :
2997 vcm->cfg.tx_fifo_size);
2998 *buflen = sizeof (u32);
3000 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3001 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3008 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3009 if (buffer && buflen && (*buflen == sizeof (u32)))
3012 session->sndbuf_size = *(u32 *) buffer;
3013 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3014 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3021 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3022 if (buffer && buflen && (*buflen >= sizeof (u32)))
3026 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3027 session->rx_fifo ? session->rx_fifo->nitems :
3028 vcm->cfg.rx_fifo_size);
3029 *buflen = sizeof (u32);
3031 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3032 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3038 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3039 if (buffer && buflen && (*buflen == sizeof (u32)))
3042 session->rcvbuf_size = *(u32 *) buffer;
3043 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3044 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3051 case VPPCOM_ATTR_GET_REUSEADDR:
3052 if (buffer && buflen && (*buflen >= sizeof (int)))
3055 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3056 VCL_SESS_ATTR_REUSEADDR);
3057 *buflen = sizeof (int);
3059 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3060 *(int *) buffer, *buflen);
3066 case VPPCOM_ATTR_SET_REUSEADDR:
3067 if (buffer && buflen && (*buflen == sizeof (int)) &&
3068 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3071 if (*(int *) buffer)
3072 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3074 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3076 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3077 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3084 case VPPCOM_ATTR_GET_REUSEPORT:
3085 if (buffer && buflen && (*buflen >= sizeof (int)))
3088 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3089 VCL_SESS_ATTR_REUSEPORT);
3090 *buflen = sizeof (int);
3092 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3093 *(int *) buffer, *buflen);
3099 case VPPCOM_ATTR_SET_REUSEPORT:
3100 if (buffer && buflen && (*buflen == sizeof (int)) &&
3101 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3104 if (*(int *) buffer)
3105 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3107 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3109 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3110 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3117 case VPPCOM_ATTR_GET_BROADCAST:
3118 if (buffer && buflen && (*buflen >= sizeof (int)))
3121 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3122 VCL_SESS_ATTR_BROADCAST);
3123 *buflen = sizeof (int);
3125 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3126 *(int *) buffer, *buflen);
3132 case VPPCOM_ATTR_SET_BROADCAST:
3133 if (buffer && buflen && (*buflen == sizeof (int)))
3136 if (*(int *) buffer)
3137 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3139 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3141 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3142 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3149 case VPPCOM_ATTR_GET_V6ONLY:
3150 if (buffer && buflen && (*buflen >= sizeof (int)))
3153 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3154 VCL_SESS_ATTR_V6ONLY);
3155 *buflen = sizeof (int);
3157 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3158 *(int *) buffer, *buflen);
3164 case VPPCOM_ATTR_SET_V6ONLY:
3165 if (buffer && buflen && (*buflen == sizeof (int)))
3168 if (*(int *) buffer)
3169 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3171 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3173 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3174 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3181 case VPPCOM_ATTR_GET_KEEPALIVE:
3182 if (buffer && buflen && (*buflen >= sizeof (int)))
3185 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3186 VCL_SESS_ATTR_KEEPALIVE);
3187 *buflen = sizeof (int);
3189 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3190 *(int *) buffer, *buflen);
3196 case VPPCOM_ATTR_SET_KEEPALIVE:
3197 if (buffer && buflen && (*buflen == sizeof (int)))
3200 if (*(int *) buffer)
3201 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3203 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3205 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3206 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3213 case VPPCOM_ATTR_GET_TCP_NODELAY:
3214 if (buffer && buflen && (*buflen >= sizeof (int)))
3217 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3218 VCL_SESS_ATTR_TCP_NODELAY);
3219 *buflen = sizeof (int);
3221 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3222 *(int *) buffer, *buflen);
3228 case VPPCOM_ATTR_SET_TCP_NODELAY:
3229 if (buffer && buflen && (*buflen == sizeof (int)))
3232 if (*(int *) buffer)
3233 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3235 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3237 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3238 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3245 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3246 if (buffer && buflen && (*buflen >= sizeof (int)))
3249 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3250 VCL_SESS_ATTR_TCP_KEEPIDLE);
3251 *buflen = sizeof (int);
3253 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3254 *(int *) buffer, *buflen);
3260 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3261 if (buffer && buflen && (*buflen == sizeof (int)))
3264 if (*(int *) buffer)
3265 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3267 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3269 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3270 VCL_SESS_ATTR_TEST (session->attr,
3271 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3277 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3278 if (buffer && buflen && (*buflen >= sizeof (int)))
3281 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3282 VCL_SESS_ATTR_TCP_KEEPINTVL);
3283 *buflen = sizeof (int);
3285 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3286 *(int *) buffer, *buflen);
3292 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3293 if (buffer && buflen && (*buflen == sizeof (int)))
3296 if (*(int *) buffer)
3297 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3299 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3301 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3302 VCL_SESS_ATTR_TEST (session->attr,
3303 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3309 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3310 if (buffer && buflen && (*buflen >= sizeof (u32)))
3313 *(u32 *) buffer = session->user_mss;
3314 *buflen = sizeof (int);
3316 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3317 *(int *) buffer, *buflen);
3323 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3324 if (buffer && buflen && (*buflen == sizeof (u32)))
3327 session->user_mss = *(u32 *) buffer;
3329 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3330 session->user_mss, *buflen);
3336 case VPPCOM_ATTR_SET_SHUT:
3337 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3338 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3339 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3340 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3343 case VPPCOM_ATTR_GET_SHUT:
3344 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3346 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3349 *(int *) buffer = SHUT_RD;
3350 else if (tmp_flags == 2)
3351 *(int *) buffer = SHUT_WR;
3352 else if (tmp_flags == 3)
3353 *(int *) buffer = SHUT_RDWR;
3354 *buflen = sizeof (int);
3365 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3366 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3368 vcl_worker_t *wrk = vcl_worker_get_current ();
3370 vcl_session_t *session = 0;
3374 session = vcl_session_get_w_handle (wrk, session_handle);
3375 if (PREDICT_FALSE (!session))
3377 VDBG (0, "sh 0x%llx is closed!", session_handle);
3378 return VPPCOM_EBADFD;
3380 ep->is_ip4 = session->transport.is_ip4;
3381 ep->port = session->transport.rmt_port;
3385 rv = vppcom_session_read (session_handle, buffer, buflen);
3386 else if (flags & MSG_PEEK)
3387 rv = vppcom_session_peek (session_handle, buffer, buflen);
3390 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3391 return VPPCOM_EAFNOSUPPORT;
3396 if (session->transport.is_ip4)
3397 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3398 sizeof (ip4_address_t));
3400 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3401 sizeof (ip6_address_t));
3408 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3409 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3412 return VPPCOM_EINVAL;
3417 return VPPCOM_EINVAL;
3422 // TBD check the flags and do the right thing
3423 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3426 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3430 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3432 vcl_worker_t *wrk = vcl_worker_get_current ();
3433 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3434 u32 i, keep_trying = 1;
3435 svm_msg_q_msg_t msg;
3439 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3442 return VPPCOM_EFAULT;
3446 vcl_session_t *session;
3448 /* Dequeue all events and drop all unhandled io events */
3449 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3451 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3452 vcl_handle_mq_event (wrk, e);
3453 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3455 vec_reset_length (wrk->unhandled_evts_vector);
3457 for (i = 0; i < n_sids; i++)
3459 session = vcl_session_get (wrk, vp[i].sh);
3462 vp[i].revents = POLLHUP;
3469 if (POLLIN & vp[i].events)
3471 rv = vcl_session_read_ready (session);
3474 vp[i].revents |= POLLIN;
3481 case VPPCOM_ECONNRESET:
3482 vp[i].revents = POLLHUP;
3486 vp[i].revents = POLLERR;
3493 if (POLLOUT & vp[i].events)
3495 rv = vcl_session_write_ready (session);
3498 vp[i].revents |= POLLOUT;
3505 case VPPCOM_ECONNRESET:
3506 vp[i].revents = POLLHUP;
3510 vp[i].revents = POLLERR;
3517 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3519 vp[i].revents = POLLNVAL;
3523 if (wait_for_time != -1)
3524 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3526 while ((num_ev == 0) && keep_trying);
3532 vppcom_mq_epoll_fd (void)
3534 vcl_worker_t *wrk = vcl_worker_get_current ();
3535 return wrk->mqs_epfd;
3539 vppcom_session_index (vcl_session_handle_t session_handle)
3541 return session_handle & 0xFFFFFF;
3545 vppcom_session_worker (vcl_session_handle_t session_handle)
3547 return session_handle >> 24;
3551 vppcom_worker_register (void)
3553 if (!vcl_worker_alloc_and_init ())
3554 return VPPCOM_EEXIST;
3556 if (vcl_worker_set_bapi ())
3557 return VPPCOM_EEXIST;
3559 if (vcl_worker_register_with_vpp ())
3560 return VPPCOM_EEXIST;
3566 vppcom_worker_unregister (void)
3568 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3569 vcl_set_worker_index (~0);
3573 vppcom_worker_index (void)
3575 return vcl_get_worker_index ();
3579 vppcom_worker_mqs_epfd (void)
3581 vcl_worker_t *wrk = vcl_worker_get_current ();
3582 if (!vcm->cfg.use_mq_eventfd)
3584 return wrk->mqs_epfd;
3588 vppcom_session_is_connectable_listener (uint32_t session_handle)
3590 vcl_session_t *session;
3591 vcl_worker_t *wrk = vcl_worker_get_current ();
3592 session = vcl_session_get_w_handle (wrk, session_handle);
3594 return VPPCOM_EBADFD;
3595 return vcl_session_is_connectable_listener (wrk, session);
3599 vppcom_session_listener (uint32_t session_handle)
3601 vcl_worker_t *wrk = vcl_worker_get_current ();
3602 vcl_session_t *listen_session, *session;
3603 session = vcl_session_get_w_handle (wrk, session_handle);
3605 return VPPCOM_EBADFD;
3606 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3607 return VPPCOM_EBADFD;
3608 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3609 if (!listen_session)
3610 return VPPCOM_EBADFD;
3611 return vcl_session_handle (listen_session);
3615 vppcom_session_n_accepted (uint32_t session_handle)
3617 vcl_worker_t *wrk = vcl_worker_get_current ();
3618 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3620 return VPPCOM_EBADFD;
3621 return session->n_accepted_sessions;
3625 * fd.io coding-style-patch-verification: ON
3628 * eval: (c-set-style "gnu")