2 * Copyright (c) 2017 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 <svm/svm_fifo_segment.h>
19 #include <vcl/vppcom.h>
20 #include <vcl/vcl_debug.h>
21 #include <vcl/vcl_private.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)
53 n_msgs = svm_msg_q_size (mq);
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
202 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
203 session_handle_t handle, int retval)
205 app_session_evt_t _app_evt, *app_evt = &_app_evt;
206 session_accepted_reply_msg_t *rmp;
207 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
208 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
209 rmp->handle = handle;
210 rmp->context = context;
211 rmp->retval = retval;
212 app_send_ctrl_evt_to_vpp (mq, app_evt);
216 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
217 session_handle_t handle, int retval)
219 app_session_evt_t _app_evt, *app_evt = &_app_evt;
220 session_disconnected_reply_msg_t *rmp;
221 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
222 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
223 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
224 rmp->handle = handle;
225 rmp->context = context;
226 rmp->retval = retval;
227 app_send_ctrl_evt_to_vpp (mq, app_evt);
231 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
232 session_handle_t handle, int retval)
234 app_session_evt_t _app_evt, *app_evt = &_app_evt;
235 session_reset_reply_msg_t *rmp;
236 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
237 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
238 rmp->handle = handle;
239 rmp->context = context;
240 rmp->retval = retval;
241 app_send_ctrl_evt_to_vpp (mq, app_evt);
245 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
248 app_session_evt_t _app_evt, *app_evt = &_app_evt;
249 session_worker_update_msg_t *mp;
252 mq = vcl_session_vpp_evt_q (wrk, s);
253 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
254 mp = (session_worker_update_msg_t *) app_evt->evt->data;
255 mp->client_index = wrk->my_client_index;
256 mp->handle = s->vpp_handle;
257 mp->req_wrk_index = wrk->vpp_wrk_index;
258 mp->wrk_index = wrk_index;
259 app_send_ctrl_evt_to_vpp (mq, app_evt);
263 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp)
265 vcl_session_t *session, *listen_session;
266 svm_fifo_t *rx_fifo, *tx_fifo;
270 session = vcl_session_alloc (wrk);
272 listen_session = vcl_session_table_lookup_listener (wrk,
273 mp->listener_handle);
277 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
278 clib_warning ("VCL<%d>: ERROR: couldn't find listen session: "
279 "unknown vpp listener handle %llx",
280 getpid (), mp->listener_handle);
281 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
282 VNET_API_ERROR_INVALID_ARGUMENT);
283 vcl_session_free (wrk, session);
284 return VCL_INVALID_SESSION_INDEX;
287 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
288 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
290 if (mp->server_event_queue_address)
292 session->vpp_evt_q = uword_to_pointer (mp->client_event_queue_address,
294 session->our_evt_q = uword_to_pointer (mp->server_event_queue_address,
296 if (vcl_wait_for_segment (mp->segment_handle))
298 clib_warning ("segment for session %u couldn't be mounted!",
299 session->session_index);
300 return VCL_INVALID_SESSION_INDEX;
302 rx_fifo->master_session_index = session->session_index;
303 tx_fifo->master_session_index = session->session_index;
304 rx_fifo->master_thread_index = vcl_get_worker_index ();
305 tx_fifo->master_thread_index = vcl_get_worker_index ();
306 vec_validate (wrk->vpp_event_queues, 0);
307 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
308 wrk->vpp_event_queues[0] = evt_q;
312 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
314 rx_fifo->client_session_index = session->session_index;
315 tx_fifo->client_session_index = session->session_index;
316 rx_fifo->client_thread_index = vcl_get_worker_index ();
317 tx_fifo->client_thread_index = vcl_get_worker_index ();
318 vpp_wrk_index = tx_fifo->master_thread_index;
319 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
320 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
323 session->vpp_handle = mp->handle;
324 session->vpp_thread_index = rx_fifo->master_thread_index;
325 session->client_context = mp->context;
326 session->rx_fifo = rx_fifo;
327 session->tx_fifo = tx_fifo;
329 session->session_state = STATE_ACCEPT;
330 session->transport.rmt_port = mp->port;
331 session->transport.is_ip4 = mp->is_ip4;
332 clib_memcpy_fast (&session->transport.rmt_ip, mp->ip,
333 sizeof (ip46_address_t));
335 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
336 session->transport.lcl_port = listen_session->transport.lcl_port;
337 session->transport.lcl_ip = listen_session->transport.lcl_ip;
338 session->session_type = listen_session->session_type;
339 session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
341 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s"
342 " address %U port %d queue %p!", getpid (), mp->handle,
343 session->session_index,
344 mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip,
345 mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
346 clib_net_to_host_u16 (mp->port), session->vpp_evt_q);
347 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
349 return session->session_index;
353 vcl_session_connected_handler (vcl_worker_t * wrk,
354 session_connected_msg_t * mp)
356 u32 session_index, vpp_wrk_index;
357 svm_fifo_t *rx_fifo, *tx_fifo;
358 vcl_session_t *session = 0;
361 session_index = mp->context;
362 session = vcl_session_get (wrk, session_index);
365 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
366 "Invalid session index (%u)!",
367 getpid (), mp->handle, session_index);
368 return VCL_INVALID_SESSION_INDEX;
372 clib_warning ("VCL<%d>: ERROR: sid %u: connect failed! %U", getpid (),
373 session_index, format_api_error, ntohl (mp->retval));
374 session->session_state = STATE_FAILED;
375 session->vpp_handle = mp->handle;
376 return session_index;
379 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
380 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
381 if (vcl_wait_for_segment (mp->segment_handle))
383 clib_warning ("segment for session %u couldn't be mounted!",
384 session->session_index);
385 return VCL_INVALID_SESSION_INDEX;
388 rx_fifo->client_session_index = session_index;
389 tx_fifo->client_session_index = session_index;
390 rx_fifo->client_thread_index = vcl_get_worker_index ();
391 tx_fifo->client_thread_index = vcl_get_worker_index ();
393 if (mp->client_event_queue_address)
395 session->vpp_evt_q = uword_to_pointer (mp->server_event_queue_address,
397 session->our_evt_q = uword_to_pointer (mp->client_event_queue_address,
400 vec_validate (wrk->vpp_event_queues, 0);
401 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
402 wrk->vpp_event_queues[0] = evt_q;
406 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
408 vpp_wrk_index = tx_fifo->master_thread_index;
409 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
410 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
413 session->rx_fifo = rx_fifo;
414 session->tx_fifo = tx_fifo;
415 session->vpp_handle = mp->handle;
416 session->vpp_thread_index = rx_fifo->master_thread_index;
417 session->transport.is_ip4 = mp->is_ip4;
418 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
419 sizeof (session->transport.lcl_ip));
420 session->transport.lcl_port = mp->lcl_port;
421 session->session_state = STATE_CONNECT;
423 /* Add it to lookup table */
424 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
426 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! "
427 "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d",
428 getpid (), mp->handle, session_index, session->rx_fifo,
429 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
431 return session_index;
435 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
437 vcl_session_msg_t *accepted_msg;
440 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
442 accepted_msg = &session->accept_evts_fifo[i];
443 if (accepted_msg->accepted_msg.handle == handle)
445 accepted_msg->flags |= flags;
453 vcl_session_reset_handler (vcl_worker_t * wrk,
454 session_reset_msg_t * reset_msg)
456 vcl_session_t *session;
459 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
460 session = vcl_session_get (wrk, sid);
463 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
464 return VCL_INVALID_SESSION_INDEX;
467 /* Caught a reset before actually accepting the session */
468 if (session->session_state == STATE_LISTEN)
471 if (!vcl_flag_accepted_session (session, reset_msg->handle,
472 VCL_ACCEPTED_F_RESET))
473 VDBG (0, "session was not accepted!");
474 return VCL_INVALID_SESSION_INDEX;
477 session->session_state = STATE_DISCONNECT;
478 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
483 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
485 vcl_session_t *session;
486 u32 sid = mp->context;
488 session = vcl_session_get (wrk, sid);
491 VERR ("vpp handle 0x%llx, sid %u: bind failed: %U", mp->handle, sid,
492 format_api_error, mp->retval);
495 session->session_state = STATE_FAILED;
496 session->vpp_handle = mp->handle;
501 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
502 "Invalid session index (%u)!",
503 getpid (), mp->handle, sid);
504 return VCL_INVALID_SESSION_INDEX;
508 session->vpp_handle = mp->handle;
509 session->transport.is_ip4 = mp->lcl_is_ip4;
510 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
511 sizeof (ip46_address_t));
512 session->transport.lcl_port = mp->lcl_port;
513 vcl_session_table_add_listener (wrk, mp->handle, sid);
514 session->session_state = STATE_LISTEN;
516 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
517 vec_validate (wrk->vpp_event_queues, 0);
518 wrk->vpp_event_queues[0] = session->vpp_evt_q;
520 if (session->is_dgram)
522 svm_fifo_t *rx_fifo, *tx_fifo;
523 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
524 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
525 rx_fifo->client_session_index = sid;
526 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
527 tx_fifo->client_session_index = sid;
528 session->rx_fifo = rx_fifo;
529 session->tx_fifo = tx_fifo;
532 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
537 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
539 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
542 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
543 if (!s || s->session_state != STATE_DISCONNECT)
545 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
550 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
551 s->session_index, mp->handle, format_api_error, ntohl (mp->retval));
553 if (mp->context != wrk->wrk_index)
554 VDBG (0, "wrong context");
556 vcl_session_table_del_vpp_handle (wrk, mp->handle);
557 vcl_session_free (wrk, s);
560 static vcl_session_t *
561 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
563 vcl_session_msg_t *vcl_msg;
564 vcl_session_t *session;
566 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
567 if (PREDICT_FALSE (session != 0))
568 VWRN ("session overlap handle %lu state %u!", msg->handle,
569 session->session_state);
571 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
574 VERR ("couldn't find listen session: listener handle %llx",
575 msg->listener_handle);
579 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
580 vcl_msg->accepted_msg = *msg;
581 /* Session handle points to listener until fully accepted by app */
582 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
587 static vcl_session_t *
588 vcl_session_disconnected_handler (vcl_worker_t * wrk,
589 session_disconnected_msg_t * msg)
591 vcl_session_t *session;
593 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
596 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
600 /* Caught a disconnect before actually accepting the session */
601 if (session->session_state == STATE_LISTEN)
603 if (!vcl_flag_accepted_session (session, msg->handle,
604 VCL_ACCEPTED_F_CLOSED))
605 VDBG (0, "session was not accepted!");
609 session->session_state = STATE_VPP_CLOSING;
614 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
616 session_req_worker_update_msg_t *msg;
619 msg = (session_req_worker_update_msg_t *) data;
620 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
624 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
628 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
630 session_worker_update_reply_msg_t *msg;
633 msg = (session_worker_update_reply_msg_t *) data;
634 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
637 VDBG (0, "unknown handle 0x%llx", msg->handle);
640 if (vcl_wait_for_segment (msg->segment_handle))
642 clib_warning ("segment for session %u couldn't be mounted!",
649 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
650 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
651 s->rx_fifo->client_session_index = s->session_index;
652 s->tx_fifo->client_session_index = s->session_index;
653 s->rx_fifo->client_thread_index = wrk->wrk_index;
654 s->tx_fifo->client_thread_index = wrk->wrk_index;
656 s->session_state = STATE_UPDATED;
658 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
659 s->vpp_handle, wrk->wrk_index);
663 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
665 session_disconnected_msg_t *disconnected_msg;
666 vcl_session_t *session;
668 switch (e->event_type)
670 case FIFO_EVENT_APP_RX:
671 case FIFO_EVENT_APP_TX:
672 case SESSION_IO_EVT_CT_RX:
673 case SESSION_IO_EVT_CT_TX:
674 vec_add1 (wrk->unhandled_evts_vector, *e);
676 case SESSION_CTRL_EVT_ACCEPTED:
677 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
679 case SESSION_CTRL_EVT_CONNECTED:
680 vcl_session_connected_handler (wrk,
681 (session_connected_msg_t *) e->data);
683 case SESSION_CTRL_EVT_DISCONNECTED:
684 disconnected_msg = (session_disconnected_msg_t *) e->data;
685 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
688 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
689 session->vpp_handle);
691 case SESSION_CTRL_EVT_RESET:
692 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
694 case SESSION_CTRL_EVT_BOUND:
695 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
697 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
698 vcl_session_unlisten_reply_handler (wrk, e->data);
700 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
701 vcl_session_req_worker_update_handler (wrk, e->data);
703 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
704 vcl_session_worker_update_reply_handler (wrk, e->data);
707 clib_warning ("unhandled %u", e->event_type);
713 vppcom_wait_for_session_state_change (u32 session_index,
714 vcl_session_state_t state,
717 vcl_worker_t *wrk = vcl_worker_get_current ();
718 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
719 vcl_session_t *volatile session;
725 session = vcl_session_get (wrk, session_index);
726 if (PREDICT_FALSE (!session))
728 return VPPCOM_EBADFD;
730 if (session->session_state & state)
734 if (session->session_state & STATE_FAILED)
736 return VPPCOM_ECONNREFUSED;
739 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
744 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
745 vcl_handle_mq_event (wrk, e);
746 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
748 while (clib_time_now (&wrk->clib_time) < timeout);
750 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
751 vppcom_session_state_str (state));
752 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
754 return VPPCOM_ETIMEDOUT;
758 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
760 vcl_session_state_t state;
764 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
767 vec_foreach (sip, wrk->pending_session_wrk_updates)
769 s = vcl_session_get (wrk, *sip);
770 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
771 state = s->session_state;
772 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
773 s->session_state = state;
775 vec_reset_length (wrk->pending_session_wrk_updates);
779 vcl_flush_mq_events (void)
781 vcl_worker_t *wrk = vcl_worker_get_current ();
782 svm_msg_q_msg_t *msg;
787 mq = wrk->app_event_queue;
789 vcl_mq_dequeue_batch (wrk, mq);
790 svm_msg_q_unlock (mq);
792 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
794 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
795 e = svm_msg_q_msg_data (mq, msg);
796 vcl_handle_mq_event (wrk, e);
797 svm_msg_q_free_msg (mq, msg);
799 vec_reset_length (wrk->mq_msg_vector);
800 vcl_handle_pending_wrk_updates (wrk);
804 vppcom_app_session_enable (void)
808 if (vcm->app_state != STATE_APP_ENABLED)
810 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
811 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
812 if (PREDICT_FALSE (rv))
814 VDBG (0, "VCL<%d>: application session enable timed out! "
815 "returning %d (%s)", getpid (), rv, vppcom_retval_str (rv));
823 vppcom_app_attach (void)
827 vppcom_app_send_attach ();
828 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
829 if (PREDICT_FALSE (rv))
831 VDBG (0, "VCL<%d>: application attach timed out! returning %d (%s)",
832 getpid (), rv, vppcom_retval_str (rv));
840 vppcom_session_unbind (u32 session_handle)
842 vcl_worker_t *wrk = vcl_worker_get_current ();
843 vcl_session_t *session = 0;
846 session = vcl_session_get_w_handle (wrk, session_handle);
848 return VPPCOM_EBADFD;
850 vpp_handle = session->vpp_handle;
851 session->vpp_handle = ~0;
852 session->session_state = STATE_DISCONNECT;
854 VDBG (1, "vpp handle 0x%llx, sid %u: sending unbind msg! new state"
855 " 0x%x (%s)", vpp_handle, session_handle, STATE_DISCONNECT,
856 vppcom_session_state_str (STATE_DISCONNECT));
857 vcl_evt (VCL_EVT_UNBIND, session);
858 vppcom_send_unbind_sock (wrk, vpp_handle);
864 vppcom_session_disconnect (u32 session_handle)
866 vcl_worker_t *wrk = vcl_worker_get_current ();
867 svm_msg_q_t *vpp_evt_q;
868 vcl_session_t *session;
869 vcl_session_state_t state;
872 session = vcl_session_get_w_handle (wrk, session_handle);
874 return VPPCOM_EBADFD;
876 vpp_handle = session->vpp_handle;
877 state = session->session_state;
879 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (),
880 vpp_handle, session_handle, state, vppcom_session_state_str (state));
882 if (PREDICT_FALSE (state & STATE_LISTEN))
884 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
885 "Cannot disconnect a listen socket!",
886 getpid (), vpp_handle, session_handle);
887 return VPPCOM_EBADFD;
890 if (state & STATE_VPP_CLOSING)
892 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
893 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
895 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect "
896 "REPLY...", getpid (), vpp_handle, session_handle);
900 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...",
901 getpid (), vpp_handle, session_handle);
902 vppcom_send_disconnect_session (vpp_handle);
911 * Notify vpp of the disconnect and mark the worker as free. If we're the
912 * last worker, do a full cleanup otherwise, since we're probably a forked
913 * child, avoid syscalls as much as possible. We might've lost privileges.
916 vppcom_app_exit (void)
918 if (!pool_elts (vcm->workers))
920 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
921 vcl_set_worker_index (~0);
923 if (vec_len (vcm->workers) == 1)
924 vl_client_disconnect_from_vlib ();
926 vl_client_send_disconnect (1 /* vpp should cleanup */ );
930 * VPPCOM Public API functions
933 vppcom_app_create (char *app_name)
935 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
940 VDBG (1, "already initialized");
941 return VPPCOM_EEXIST;
945 vppcom_cfg (&vcm->cfg);
948 vcm->main_cpu = pthread_self ();
949 vcm->main_pid = getpid ();
950 vcm->app_name = format (0, "%s", app_name);
951 vppcom_init_error_string_table ();
952 svm_fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
953 20 /* timeout in secs */ );
954 pool_alloc (vcm->workers, vcl_cfg->max_workers);
955 clib_spinlock_init (&vcm->workers_lock);
956 clib_rwlock_init (&vcm->segment_table_lock);
957 atexit (vppcom_app_exit);
959 /* Allocate default worker */
960 vcl_worker_alloc_and_init ();
962 /* API hookup and connect to VPP */
963 vppcom_api_hookup ();
965 vcm->app_state = STATE_APP_START;
966 rv = vppcom_connect_to_vpp (app_name);
969 VERR ("couldn't connect to VPP!");
972 VDBG (0, "sending session enable");
973 rv = vppcom_app_session_enable ();
976 VERR ("vppcom_app_session_enable() failed!");
980 VDBG (0, "sending app attach");
981 rv = vppcom_app_attach ();
984 VERR ("vppcom_app_attach() failed!");
988 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
989 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
995 vppcom_app_destroy (void)
998 f64 orig_app_timeout;
1000 if (!pool_elts (vcm->workers))
1003 vcl_evt (VCL_EVT_DETACH, vcm);
1005 if (pool_elts (vcm->workers) == 1)
1007 vppcom_app_send_detach ();
1008 orig_app_timeout = vcm->cfg.app_timeout;
1009 vcm->cfg.app_timeout = 2.0;
1010 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1011 vcm->cfg.app_timeout = orig_app_timeout;
1012 if (PREDICT_FALSE (rv))
1013 VDBG (0, "application detach timed out! returning %d (%s)", rv,
1014 vppcom_retval_str (rv));
1015 vec_free (vcm->app_name);
1016 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1020 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1023 vcl_set_worker_index (~0);
1024 vcl_elog_stop (vcm);
1025 vl_client_disconnect_from_vlib ();
1029 vppcom_session_create (u8 proto, u8 is_nonblocking)
1031 vcl_worker_t *wrk = vcl_worker_get_current ();
1032 vcl_session_t *session;
1034 session = vcl_session_alloc (wrk);
1036 session->session_type = proto;
1037 session->session_state = STATE_START;
1038 session->vpp_handle = ~0;
1039 session->is_dgram = proto == VPPCOM_PROTO_UDP;
1042 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1044 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1045 is_nonblocking, session_index);
1047 VDBG (0, "created sid %u", session->session_index);
1049 return vcl_session_handle (session);
1053 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1054 vcl_session_handle_t sh, u8 do_disconnect)
1056 vcl_session_state_t state;
1057 u32 next_sh, vep_sh;
1062 is_vep = session->is_vep;
1063 next_sh = session->vep.next_sh;
1064 vep_sh = session->vep.vep_sh;
1065 state = session->session_state;
1066 vpp_handle = session->vpp_handle;
1068 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1072 while (next_sh != ~0)
1074 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1075 if (PREDICT_FALSE (rv < 0))
1076 VDBG (0, "vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL vep_idx %u"
1077 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1078 vppcom_retval_str (rv));
1080 next_sh = session->vep.next_sh;
1085 if (session->is_vep_session)
1087 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1089 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1090 "failed! rv %d (%s)", session->session_index, vpp_handle,
1091 vep_sh, rv, vppcom_retval_str (rv));
1096 VDBG (1, "session %u [0x%llx] disconnect skipped",
1097 session->session_index, vpp_handle);
1101 if (state & STATE_LISTEN)
1103 rv = vppcom_session_unbind (sh);
1104 if (PREDICT_FALSE (rv < 0))
1105 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1106 "rv %d (%s)", session->session_index, vpp_handle, rv,
1107 vppcom_retval_str (rv));
1110 else if (state & STATE_OPEN)
1112 rv = vppcom_session_disconnect (sh);
1113 if (PREDICT_FALSE (rv < 0))
1114 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1115 " rv %d (%s)", session->session_index, vpp_handle,
1116 rv, vppcom_retval_str (rv));
1118 else if (state == STATE_DISCONNECT)
1120 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1121 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1122 session->vpp_handle, 0);
1126 if (vcl_session_is_ct (session))
1128 vcl_cut_through_registration_t *ctr;
1131 mq_addr = pointer_to_uword (session->our_evt_q);
1132 ctr = vcl_ct_registration_lock_and_lookup (wrk, mq_addr);
1134 if (ctr->epoll_evt_conn_index != ~0)
1135 vcl_mq_epoll_del_evfd (wrk, ctr->epoll_evt_conn_index);
1136 VDBG (0, "Removing ct registration %u",
1137 vcl_ct_registration_index (wrk, ctr));
1138 vcl_ct_registration_del (wrk, ctr);
1139 vcl_ct_registration_lookup_del (wrk, mq_addr);
1140 vcl_ct_registration_unlock (wrk);
1143 VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
1146 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1147 vcl_session_free (wrk, session);
1148 vcl_evt (VCL_EVT_CLOSE, session, rv);
1154 vppcom_session_close (uint32_t session_handle)
1156 vcl_worker_t *wrk = vcl_worker_get_current ();
1157 vcl_session_t *session;
1159 session = vcl_session_get_w_handle (wrk, session_handle);
1161 return VPPCOM_EBADFD;
1162 return vcl_session_cleanup (wrk, session, session_handle,
1163 1 /* do_disconnect */ );
1167 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1169 vcl_worker_t *wrk = vcl_worker_get_current ();
1170 vcl_session_t *session = 0;
1173 return VPPCOM_EINVAL;
1175 session = vcl_session_get_w_handle (wrk, session_handle);
1177 return VPPCOM_EBADFD;
1179 if (session->is_vep)
1181 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1182 "bind to an epoll session!", getpid (), session_handle);
1183 return VPPCOM_EBADFD;
1186 session->transport.is_ip4 = ep->is_ip4;
1188 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1189 sizeof (ip4_address_t));
1191 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1192 sizeof (ip6_address_t));
1193 session->transport.lcl_port = ep->port;
1195 VDBG (0, "VCL<%d>: sid %u: binding to local %s address %U port %u, "
1196 "proto %s", getpid (), session_handle,
1197 session->transport.is_ip4 ? "IPv4" : "IPv6",
1198 format_ip46_address, &session->transport.lcl_ip,
1199 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1200 clib_net_to_host_u16 (session->transport.lcl_port),
1201 vppcom_proto_str (session->session_type));
1202 vcl_evt (VCL_EVT_BIND, session);
1204 if (session->session_type == VPPCOM_PROTO_UDP)
1205 vppcom_session_listen (session_handle, 10);
1211 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1213 vcl_worker_t *wrk = vcl_worker_get_current ();
1214 vcl_session_t *listen_session = 0;
1215 u64 listen_vpp_handle;
1218 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1219 if (!listen_session || listen_session->is_vep)
1220 return VPPCOM_EBADFD;
1222 if (q_len == 0 || q_len == ~0)
1223 q_len = vcm->cfg.listen_queue_size;
1225 listen_vpp_handle = listen_session->vpp_handle;
1226 if (listen_session->session_state & STATE_LISTEN)
1228 VDBG (0, "session %u [0x%llx]: already in listen state!",
1229 listen_sh, listen_vpp_handle);
1233 VDBG (0, "session %u [0x%llx]: sending vpp listen request...",
1234 listen_sh, listen_vpp_handle);
1237 * Send listen request to vpp and wait for reply
1239 vppcom_send_bind_sock (listen_session);
1240 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1242 vcm->cfg.session_timeout);
1244 if (PREDICT_FALSE (rv))
1246 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1247 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1248 listen_sh, listen_session->vpp_handle, rv,
1249 vppcom_retval_str (rv));
1257 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1261 vcl_worker_t *wrk = vcl_worker_get_current ();
1262 vcl_session_t *session = 0;
1264 session = vcl_session_get_w_handle (wrk, session_handle);
1266 return VPPCOM_EBADFD;
1268 if (cert_len == 0 || cert_len == ~0)
1269 return VPPCOM_EBADFD;
1272 * Send listen request to vpp and wait for reply
1274 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1281 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1285 vcl_worker_t *wrk = vcl_worker_get_current ();
1286 vcl_session_t *session = 0;
1288 session = vcl_session_get_w_handle (wrk, session_handle);
1290 return VPPCOM_EBADFD;
1292 if (key_len == 0 || key_len == ~0)
1293 return VPPCOM_EBADFD;
1296 * Send listen request to vpp and wait for reply
1298 vppcom_send_application_tls_key_add (session, key, key_len);
1306 validate_args_session_accept_ (vcl_worker_t * wrk,
1307 vcl_session_t * listen_session)
1309 /* Input validation - expects spinlock on sessions_lockp */
1310 if (listen_session->is_vep)
1312 clib_warning ("VCL<%d>: ERROR: sid %u: cannot accept on an "
1313 "epoll session!", getpid (),
1314 listen_session->session_index);
1315 return VPPCOM_EBADFD;
1318 if (listen_session->session_state != STATE_LISTEN)
1320 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1321 "not in listen state! state 0x%x (%s)", getpid (),
1322 listen_session->vpp_handle, listen_session->session_index,
1323 listen_session->session_state,
1324 vppcom_session_state_str (listen_session->session_state));
1325 return VPPCOM_EBADFD;
1331 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1334 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1335 vcl_worker_t *wrk = vcl_worker_get_current ();
1336 session_accepted_msg_t accepted_msg;
1337 vcl_session_t *listen_session = 0;
1338 vcl_session_t *client_session = 0;
1339 svm_msg_q_t *vpp_evt_q;
1340 vcl_session_msg_t *evt;
1341 u64 listen_vpp_handle;
1342 svm_msg_q_msg_t msg;
1347 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1348 if (!listen_session)
1349 return VPPCOM_EBADFD;
1351 listen_session_index = listen_session->session_index;
1352 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1355 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1357 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1358 accept_flags = evt->flags;
1359 accepted_msg = evt->accepted_msg;
1363 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1364 VCL_SESS_ATTR_NONBLOCK);
1365 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1366 return VPPCOM_EAGAIN;
1370 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1371 return VPPCOM_EAGAIN;
1373 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1374 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1376 clib_warning ("discarded event: %u", e->event_type);
1377 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1380 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1381 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1387 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg);
1388 listen_session = vcl_session_get (wrk, listen_session_index);
1389 client_session = vcl_session_get (wrk, client_session_index);
1391 if (flags & O_NONBLOCK)
1392 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1394 listen_vpp_handle = listen_session->vpp_handle;
1395 VDBG (1, "vpp handle 0x%llx, sid %u: Got a client request! "
1396 "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u",
1397 listen_vpp_handle, listen_session_handle,
1398 client_session->vpp_handle, client_session_index,
1399 flags, VCL_SESS_ATTR_TEST (client_session->attr,
1400 VCL_SESS_ATTR_NONBLOCK));
1404 ep->is_ip4 = client_session->transport.is_ip4;
1405 ep->port = client_session->transport.rmt_port;
1406 if (client_session->transport.is_ip4)
1407 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1408 sizeof (ip4_address_t));
1410 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1411 sizeof (ip6_address_t));
1414 if (accepted_msg.server_event_queue_address)
1415 vpp_evt_q = uword_to_pointer (accepted_msg.vpp_event_queue_address,
1418 vpp_evt_q = client_session->vpp_evt_q;
1420 vcl_send_session_accepted_reply (vpp_evt_q, client_session->client_context,
1421 client_session->vpp_handle, 0);
1423 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1424 "local: %U:%u", listen_session_handle, listen_vpp_handle,
1425 client_session_index, client_session->vpp_handle,
1426 format_ip46_address, &client_session->transport.rmt_ip,
1427 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1428 clib_net_to_host_u16 (client_session->transport.rmt_port),
1429 format_ip46_address, &client_session->transport.lcl_ip,
1430 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1431 clib_net_to_host_u16 (client_session->transport.lcl_port));
1432 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1433 client_session_index);
1436 * Session might have been closed already
1440 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1441 client_session->session_state = STATE_VPP_CLOSING;
1442 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1443 client_session->session_state = STATE_DISCONNECT;
1445 return vcl_session_handle (client_session);
1449 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1451 vcl_worker_t *wrk = vcl_worker_get_current ();
1452 vcl_session_t *session = 0;
1456 session = vcl_session_get_w_handle (wrk, session_handle);
1458 return VPPCOM_EBADFD;
1459 session_index = session->session_index;
1461 if (PREDICT_FALSE (session->is_vep))
1463 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1464 "connect on an epoll session!", getpid (),
1466 return VPPCOM_EBADFD;
1469 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1471 VDBG (0, "session handle %u [0x%llx]: session already "
1472 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1473 session_handle, session->vpp_handle,
1474 session->transport.is_ip4 ? "IPv4" : "IPv6",
1475 format_ip46_address,
1476 &session->transport.rmt_ip, session->transport.is_ip4 ?
1477 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1478 clib_net_to_host_u16 (session->transport.rmt_port),
1479 vppcom_proto_str (session->session_type), session->session_state,
1480 vppcom_session_state_str (session->session_state));
1484 session->transport.is_ip4 = server_ep->is_ip4;
1485 if (session->transport.is_ip4)
1486 clib_memcpy_fast (&session->transport.rmt_ip.ip4, server_ep->ip,
1487 sizeof (ip4_address_t));
1489 clib_memcpy_fast (&session->transport.rmt_ip.ip6, server_ep->ip,
1490 sizeof (ip6_address_t));
1491 session->transport.rmt_port = server_ep->port;
1493 VDBG (0, "session handle %u [0x%llx]: connecting to server %s %U "
1494 "port %d proto %s", session_handle, session->vpp_handle,
1495 session->transport.is_ip4 ? "IPv4" : "IPv6",
1496 format_ip46_address,
1497 &session->transport.rmt_ip, session->transport.is_ip4 ?
1498 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1499 clib_net_to_host_u16 (session->transport.rmt_port),
1500 vppcom_proto_str (session->session_type));
1503 * Send connect request and wait for reply from vpp
1505 vppcom_send_connect_sock (session);
1506 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1507 vcm->cfg.session_timeout);
1509 session = vcl_session_get (wrk, session_index);
1511 if (PREDICT_FALSE (rv))
1513 if (VPPCOM_DEBUG > 0)
1516 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: connect "
1517 "failed! returning %d (%s)", getpid (),
1518 session->vpp_handle, session_handle, rv,
1519 vppcom_retval_str (rv));
1521 clib_warning ("VCL<%d>: no session for sid %u: connect failed! "
1522 "returning %d (%s)", getpid (),
1523 session_handle, rv, vppcom_retval_str (rv));
1527 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connected!",
1528 getpid (), session->vpp_handle, session_handle);
1534 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1537 return (e->event_type == FIFO_EVENT_APP_RX
1538 && e->fifo->client_session_index == sid);
1540 return (e->event_type == SESSION_IO_EVT_CT_TX);
1544 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1547 vcl_worker_t *wrk = vcl_worker_get_current ();
1548 int n_read = 0, is_nonblocking;
1549 vcl_session_t *s = 0;
1550 svm_fifo_t *rx_fifo;
1551 svm_msg_q_msg_t msg;
1556 if (PREDICT_FALSE (!buf))
1557 return VPPCOM_EINVAL;
1559 s = vcl_session_get_w_handle (wrk, session_handle);
1560 if (PREDICT_FALSE (!s || s->is_vep))
1561 return VPPCOM_EBADFD;
1563 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1565 VDBG (0, "session handle %u[0x%llx] is not open! state 0x%x (%s)",
1566 s->session_index, s->vpp_handle, s->session_state,
1567 vppcom_session_state_str (s->session_state));
1568 return vcl_session_closed_error (s);
1571 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1572 is_ct = vcl_session_is_ct (s);
1573 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1574 rx_fifo = s->rx_fifo;
1577 if (svm_fifo_is_empty (rx_fifo))
1581 svm_fifo_unset_event (rx_fifo);
1582 return VPPCOM_EWOULDBLOCK;
1584 while (svm_fifo_is_empty (rx_fifo))
1586 if (vcl_session_is_closing (s))
1587 return vcl_session_closing_error (s);
1589 svm_fifo_unset_event (rx_fifo);
1590 svm_msg_q_lock (mq);
1591 if (svm_msg_q_is_empty (mq))
1592 svm_msg_q_wait (mq);
1594 svm_msg_q_sub_w_lock (mq, &msg);
1595 e = svm_msg_q_msg_data (mq, &msg);
1596 svm_msg_q_unlock (mq);
1597 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1598 vcl_handle_mq_event (wrk, e);
1599 svm_msg_q_free_msg (mq, &msg);
1604 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1606 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1608 if (svm_fifo_is_empty (rx_fifo))
1609 svm_fifo_unset_event (rx_fifo);
1611 if (is_ct && svm_fifo_needs_tx_ntf (rx_fifo, n_read))
1613 svm_fifo_clear_tx_ntf (s->rx_fifo);
1614 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo, SESSION_IO_EVT_CT_RX,
1618 VDBG (2, "vpp handle 0x%llx, sid %u: read %d bytes from (%p)",
1619 s->vpp_handle, session_handle, n_read, rx_fifo);
1625 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1627 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1631 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1633 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1637 vppcom_session_read_segments (uint32_t session_handle,
1638 vppcom_data_segments_t ds)
1640 vcl_worker_t *wrk = vcl_worker_get_current ();
1641 int n_read = 0, is_nonblocking;
1642 vcl_session_t *s = 0;
1643 svm_fifo_t *rx_fifo;
1644 svm_msg_q_msg_t msg;
1649 s = vcl_session_get_w_handle (wrk, session_handle);
1650 if (PREDICT_FALSE (!s || s->is_vep))
1651 return VPPCOM_EBADFD;
1653 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1654 return vcl_session_closed_error (s);
1656 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1657 is_ct = vcl_session_is_ct (s);
1658 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1659 rx_fifo = s->rx_fifo;
1662 if (svm_fifo_is_empty (rx_fifo))
1666 svm_fifo_unset_event (rx_fifo);
1667 return VPPCOM_EWOULDBLOCK;
1669 while (svm_fifo_is_empty (rx_fifo))
1671 if (vcl_session_is_closing (s))
1672 return vcl_session_closing_error (s);
1674 svm_fifo_unset_event (rx_fifo);
1675 svm_msg_q_lock (mq);
1676 if (svm_msg_q_is_empty (mq))
1677 svm_msg_q_wait (mq);
1679 svm_msg_q_sub_w_lock (mq, &msg);
1680 e = svm_msg_q_msg_data (mq, &msg);
1681 svm_msg_q_unlock (mq);
1682 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1683 vcl_handle_mq_event (wrk, e);
1684 svm_msg_q_free_msg (mq, &msg);
1688 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_segment_t *) ds);
1689 svm_fifo_unset_event (rx_fifo);
1691 if (is_ct && n_read + svm_fifo_max_dequeue (rx_fifo) == rx_fifo->nitems)
1693 /* If the peer is not polling send notification */
1694 if (!svm_fifo_has_event (s->rx_fifo))
1695 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo,
1696 SESSION_IO_EVT_CT_RX, SVM_Q_WAIT);
1703 vppcom_session_free_segments (uint32_t session_handle,
1704 vppcom_data_segments_t ds)
1706 vcl_worker_t *wrk = vcl_worker_get_current ();
1709 s = vcl_session_get_w_handle (wrk, session_handle);
1710 if (PREDICT_FALSE (!s || s->is_vep))
1713 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_segment_t *) ds);
1717 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1719 u32 first_copy = clib_min (ds[0].len, max_bytes);
1720 clib_memcpy_fast (buf, ds[0].data, first_copy);
1721 if (first_copy < max_bytes)
1723 clib_memcpy_fast (buf + first_copy, ds[1].data,
1724 clib_min (ds[1].len, max_bytes - first_copy));
1730 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1733 return (e->event_type == FIFO_EVENT_APP_TX
1734 && e->fifo->client_session_index == sid);
1736 return (e->event_type == SESSION_IO_EVT_CT_RX);
1740 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1743 vcl_worker_t *wrk = vcl_worker_get_current ();
1744 int n_write, is_nonblocking;
1745 vcl_session_t *s = 0;
1746 svm_fifo_t *tx_fifo = 0;
1747 session_evt_type_t et;
1748 svm_msg_q_msg_t msg;
1753 if (PREDICT_FALSE (!buf))
1754 return VPPCOM_EINVAL;
1756 s = vcl_session_get_w_handle (wrk, session_handle);
1757 if (PREDICT_FALSE (!s))
1758 return VPPCOM_EBADFD;
1760 if (PREDICT_FALSE (s->is_vep))
1762 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1763 " session!", s->session_index, s->vpp_handle);
1764 return VPPCOM_EBADFD;
1767 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1769 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1770 s->session_index, s->vpp_handle, s->session_state,
1771 vppcom_session_state_str (s->session_state));
1772 return vcl_session_closed_error (s);;
1775 tx_fifo = s->tx_fifo;
1776 is_ct = vcl_session_is_ct (s);
1777 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1778 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1779 if (svm_fifo_is_full (tx_fifo))
1783 return VPPCOM_EWOULDBLOCK;
1785 while (svm_fifo_is_full (tx_fifo))
1787 svm_fifo_add_want_tx_ntf (tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
1788 if (vcl_session_is_closing (s))
1789 return vcl_session_closing_error (s);
1790 svm_msg_q_lock (mq);
1791 if (svm_msg_q_is_empty (mq))
1792 svm_msg_q_wait (mq);
1794 svm_msg_q_sub_w_lock (mq, &msg);
1795 e = svm_msg_q_msg_data (mq, &msg);
1796 svm_msg_q_unlock (mq);
1798 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1799 vcl_handle_mq_event (wrk, e);
1800 svm_msg_q_free_msg (mq, &msg);
1804 ASSERT (FIFO_EVENT_APP_TX + 1 == SESSION_IO_EVT_CT_TX);
1805 et = FIFO_EVENT_APP_TX + vcl_session_is_ct (s);
1806 if (is_flush && !vcl_session_is_ct (s))
1807 et = SESSION_IO_EVT_TX_FLUSH;
1810 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1811 s->vpp_evt_q, buf, n, et, SVM_Q_WAIT);
1813 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1816 ASSERT (n_write > 0);
1818 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1819 s->vpp_handle, n_write);
1825 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1827 return vppcom_session_write_inline (session_handle, buf, n,
1832 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1834 return vppcom_session_write_inline (session_handle, buf, n,
1839 static vcl_session_t *
1840 vcl_ct_session_get_from_fifo (vcl_worker_t * wrk, svm_fifo_t * f, u8 type)
1843 s = vcl_session_get (wrk, f->client_session_index);
1847 if (type == 0 && s->rx_fifo == f)
1850 if (type == 1 && s->tx_fifo == f)
1853 s = vcl_session_get (wrk, f->master_session_index);
1856 if (type == 0 && s->rx_fifo == f)
1858 if (type == 1 && s->tx_fifo == f)
1864 #define vcl_fifo_rx_evt_valid_or_break(_fifo) \
1865 if (PREDICT_FALSE (svm_fifo_is_empty (_fifo))) \
1867 svm_fifo_unset_event (_fifo); \
1868 if (svm_fifo_is_empty (_fifo)) \
1873 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1874 unsigned long n_bits, unsigned long *read_map,
1875 unsigned long *write_map,
1876 unsigned long *except_map, u32 * bits_set)
1878 session_disconnected_msg_t *disconnected_msg;
1879 session_connected_msg_t *connected_msg;
1880 vcl_session_t *session;
1883 switch (e->event_type)
1885 case FIFO_EVENT_APP_RX:
1886 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1887 sid = e->fifo->client_session_index;
1888 session = vcl_session_get (wrk, sid);
1891 if (sid < n_bits && read_map)
1893 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1897 case FIFO_EVENT_APP_TX:
1898 sid = e->fifo->client_session_index;
1899 session = vcl_session_get (wrk, sid);
1902 if (sid < n_bits && write_map)
1904 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
1908 case SESSION_IO_EVT_CT_TX:
1909 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1910 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
1913 sid = session->session_index;
1914 if (sid < n_bits && read_map)
1916 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1920 case SESSION_IO_EVT_CT_RX:
1921 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
1924 sid = session->session_index;
1925 if (sid < n_bits && write_map)
1927 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
1931 case SESSION_CTRL_EVT_ACCEPTED:
1932 session = vcl_session_accepted (wrk,
1933 (session_accepted_msg_t *) e->data);
1936 sid = session->session_index;
1937 if (sid < n_bits && read_map)
1939 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1943 case SESSION_CTRL_EVT_CONNECTED:
1944 connected_msg = (session_connected_msg_t *) e->data;
1945 vcl_session_connected_handler (wrk, connected_msg);
1947 case SESSION_CTRL_EVT_DISCONNECTED:
1948 disconnected_msg = (session_disconnected_msg_t *) e->data;
1949 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
1952 sid = session->session_index;
1953 if (sid < n_bits && except_map)
1955 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1959 case SESSION_CTRL_EVT_RESET:
1960 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1961 if (sid < n_bits && except_map)
1963 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1967 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1968 vcl_session_unlisten_reply_handler (wrk, e->data);
1970 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1971 vcl_session_worker_update_reply_handler (wrk, e->data);
1973 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1974 vcl_session_req_worker_update_handler (wrk, e->data);
1977 clib_warning ("unhandled: %u", e->event_type);
1983 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1984 unsigned long n_bits, unsigned long *read_map,
1985 unsigned long *write_map, unsigned long *except_map,
1986 double time_to_wait, u32 * bits_set)
1988 svm_msg_q_msg_t *msg;
1992 svm_msg_q_lock (mq);
1993 if (svm_msg_q_is_empty (mq))
1997 svm_msg_q_unlock (mq);
2003 svm_msg_q_unlock (mq);
2006 else if (time_to_wait < 0)
2008 svm_msg_q_wait (mq);
2012 if (svm_msg_q_timedwait (mq, time_to_wait))
2014 svm_msg_q_unlock (mq);
2019 vcl_mq_dequeue_batch (wrk, mq);
2020 svm_msg_q_unlock (mq);
2022 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2024 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2025 e = svm_msg_q_msg_data (mq, msg);
2026 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2027 except_map, bits_set);
2028 svm_msg_q_free_msg (mq, msg);
2030 vec_reset_length (wrk->mq_msg_vector);
2031 vcl_handle_pending_wrk_updates (wrk);
2036 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2037 vcl_si_set * read_map, vcl_si_set * write_map,
2038 vcl_si_set * except_map, double time_to_wait,
2041 double total_wait = 0, wait_slice;
2042 vcl_cut_through_registration_t *cr;
2044 time_to_wait = (time_to_wait == -1) ? 1e6 : time_to_wait;
2045 wait_slice = wrk->cut_through_registrations ? 10e-6 : time_to_wait;
2048 vcl_ct_registration_lock (wrk);
2050 pool_foreach (cr, wrk->cut_through_registrations, ({
2051 vcl_select_handle_mq (wrk, cr->mq, n_bits, read_map, write_map, except_map,
2055 vcl_ct_registration_unlock (wrk);
2057 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2058 write_map, except_map, wait_slice, bits_set);
2059 total_wait += wait_slice;
2063 while (total_wait < time_to_wait);
2069 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2070 vcl_si_set * read_map, vcl_si_set * write_map,
2071 vcl_si_set * except_map, double time_to_wait,
2074 vcl_mq_evt_conn_t *mqc;
2075 int __clib_unused n_read;
2079 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2080 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2081 vec_len (wrk->mq_events), time_to_wait);
2082 for (i = 0; i < n_mq_evts; i++)
2084 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2085 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2086 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2087 except_map, 0, bits_set);
2090 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2094 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2095 vcl_si_set * except_map, double time_to_wait)
2097 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2098 vcl_worker_t *wrk = vcl_worker_get_current ();
2099 vcl_session_t *session = 0;
2102 if (n_bits && read_map)
2104 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2105 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2106 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2107 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2109 if (n_bits && write_map)
2111 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2112 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2113 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2114 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2116 if (n_bits && except_map)
2118 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2119 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2120 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2121 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2131 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2132 if (!(session = vcl_session_get (wrk, sid)))
2134 if (except_map && sid < minbits)
2135 clib_bitmap_set_no_check (except_map, sid, 1);
2139 rv = svm_fifo_is_full (session->tx_fifo);
2142 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2146 svm_fifo_add_want_tx_ntf (session->tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
2153 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2154 if (!(session = vcl_session_get (wrk, sid)))
2156 if (except_map && sid < minbits)
2157 clib_bitmap_set_no_check (except_map, sid, 1);
2161 rv = vcl_session_read_ready (session);
2164 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2172 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2174 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2175 read_map, write_map, except_map, &bits_set);
2177 vec_reset_length (wrk->unhandled_evts_vector);
2179 if (vcm->cfg.use_mq_eventfd)
2180 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2181 time_to_wait, &bits_set);
2183 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2184 time_to_wait, &bits_set);
2190 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
2192 vcl_session_t *session;
2193 vppcom_epoll_t *vep;
2196 if (VPPCOM_DEBUG <= 1)
2199 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2200 session = vcl_session_get (wrk, vep_idx);
2201 if (PREDICT_FALSE (!session))
2203 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
2204 getpid (), vep_idx);
2207 if (PREDICT_FALSE (!session->is_vep))
2209 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2210 getpid (), vep_idx);
2213 vep = &session->vep;
2214 clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n"
2217 " is_vep_session = %u\n"
2218 " next_sid = 0x%x (%u)\n"
2219 " wait_cont_idx = 0x%x (%u)\n"
2220 "}\n", getpid (), vep_idx,
2221 session->is_vep, session->is_vep_session,
2222 vep->next_sh, vep->next_sh,
2223 session->wait_cont_idx, session->wait_cont_idx);
2225 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
2227 session = vcl_session_get (wrk, sid);
2228 if (PREDICT_FALSE (!session))
2230 clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
2233 if (PREDICT_FALSE (session->is_vep))
2234 clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!",
2235 getpid (), vep_idx);
2236 else if (PREDICT_FALSE (!session->is_vep_session))
2238 clib_warning ("VCL<%d>: ERROR: session (%u) "
2239 "is not a vep session!", getpid (), sid);
2242 vep = &session->vep;
2243 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
2244 clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
2245 "vep_idx (%u)!", getpid (),
2246 sid, session->vep.vep_sh, vep_idx);
2247 if (session->is_vep_session)
2249 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
2251 " next_sid = 0x%x (%u)\n"
2252 " prev_sid = 0x%x (%u)\n"
2253 " vep_idx = 0x%x (%u)\n"
2254 " ev.events = 0x%x\n"
2255 " ev.data.u64 = 0x%llx\n"
2259 vep->next_sh, vep->next_sh,
2260 vep->prev_sh, vep->prev_sh,
2261 vep->vep_sh, vep->vep_sh,
2262 vep->ev.events, vep->ev.data.u64, vep->et_mask);
2267 clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n",
2268 getpid (), vep_idx);
2272 vppcom_epoll_create (void)
2274 vcl_worker_t *wrk = vcl_worker_get_current ();
2275 vcl_session_t *vep_session;
2277 vep_session = vcl_session_alloc (wrk);
2279 vep_session->is_vep = 1;
2280 vep_session->vep.vep_sh = ~0;
2281 vep_session->vep.next_sh = ~0;
2282 vep_session->vep.prev_sh = ~0;
2283 vep_session->wait_cont_idx = ~0;
2284 vep_session->vpp_handle = ~0;
2286 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2287 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2289 return vcl_session_handle (vep_session);
2293 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2294 struct epoll_event *event)
2296 vcl_worker_t *wrk = vcl_worker_get_current ();
2297 vcl_session_t *vep_session;
2298 vcl_session_t *session;
2301 if (vep_handle == session_handle)
2303 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2304 return VPPCOM_EINVAL;
2307 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2308 if (PREDICT_FALSE (!vep_session))
2310 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2311 return VPPCOM_EBADFD;
2313 if (PREDICT_FALSE (!vep_session->is_vep))
2315 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2316 return VPPCOM_EINVAL;
2319 ASSERT (vep_session->vep.vep_sh == ~0);
2320 ASSERT (vep_session->vep.prev_sh == ~0);
2322 session = vcl_session_get_w_handle (wrk, session_handle);
2323 if (PREDICT_FALSE (!session))
2325 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2326 return VPPCOM_EBADFD;
2328 if (PREDICT_FALSE (session->is_vep))
2330 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2331 return VPPCOM_EINVAL;
2337 if (PREDICT_FALSE (!event))
2339 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2340 return VPPCOM_EINVAL;
2342 if (vep_session->vep.next_sh != ~0)
2344 vcl_session_t *next_session;
2345 next_session = vcl_session_get_w_handle (wrk,
2346 vep_session->vep.next_sh);
2347 if (PREDICT_FALSE (!next_session))
2349 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sid (%u) on "
2350 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2351 return VPPCOM_EBADFD;
2353 ASSERT (next_session->vep.prev_sh == vep_handle);
2354 next_session->vep.prev_sh = session_handle;
2356 session->vep.next_sh = vep_session->vep.next_sh;
2357 session->vep.prev_sh = vep_handle;
2358 session->vep.vep_sh = vep_handle;
2359 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2360 session->vep.ev = *event;
2361 session->is_vep = 0;
2362 session->is_vep_session = 1;
2363 vep_session->vep.next_sh = session_handle;
2365 if (session->tx_fifo)
2366 svm_fifo_add_want_tx_ntf (session->tx_fifo,
2367 SVM_FIFO_WANT_TX_NOTIF_IF_FULL);
2369 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2370 vep_handle, session_handle, event->events, event->data.u64);
2371 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2375 if (PREDICT_FALSE (!event))
2377 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2381 else if (PREDICT_FALSE (!session->is_vep_session))
2383 VDBG (0, "sid %u EPOLL_CTL_MOD: not a vep session!",
2388 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2390 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2391 session_handle, session->vep.vep_sh, vep_handle);
2395 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2396 session->vep.ev = *event;
2397 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2398 vep_handle, session_handle, event->events, event->data.u64);
2402 if (PREDICT_FALSE (!session->is_vep_session))
2404 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2408 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2410 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2411 session_handle, session->vep.vep_sh, vep_handle);
2416 vep_session->wait_cont_idx =
2417 (vep_session->wait_cont_idx == session_handle) ?
2418 session->vep.next_sh : vep_session->wait_cont_idx;
2420 if (session->vep.prev_sh == vep_handle)
2421 vep_session->vep.next_sh = session->vep.next_sh;
2424 vcl_session_t *prev_session;
2425 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2426 if (PREDICT_FALSE (!prev_session))
2428 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sid (%u) on sid (%u)!",
2429 session->vep.prev_sh, session_handle);
2430 return VPPCOM_EBADFD;
2432 ASSERT (prev_session->vep.next_sh == session_handle);
2433 prev_session->vep.next_sh = session->vep.next_sh;
2435 if (session->vep.next_sh != ~0)
2437 vcl_session_t *next_session;
2438 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2439 if (PREDICT_FALSE (!next_session))
2441 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sid (%u) on sid (%u)!",
2442 session->vep.next_sh, session_handle);
2443 return VPPCOM_EBADFD;
2445 ASSERT (next_session->vep.prev_sh == session_handle);
2446 next_session->vep.prev_sh = session->vep.prev_sh;
2449 memset (&session->vep, 0, sizeof (session->vep));
2450 session->vep.next_sh = ~0;
2451 session->vep.prev_sh = ~0;
2452 session->vep.vep_sh = ~0;
2453 session->is_vep_session = 0;
2455 if (session->tx_fifo)
2456 svm_fifo_del_want_tx_ntf (session->tx_fifo, SVM_FIFO_NO_TX_NOTIF);
2458 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sid %u!", vep_handle,
2460 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2464 VDBG (0, "Invalid operation (%d)!", op);
2468 vep_verify_epoll_chain (wrk, vep_handle);
2475 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2476 struct epoll_event *events, u32 * num_ev)
2478 session_disconnected_msg_t *disconnected_msg;
2479 session_connected_msg_t *connected_msg;
2480 u32 sid = ~0, session_events;
2481 u64 session_evt_data = ~0;
2482 vcl_session_t *session;
2485 switch (e->event_type)
2487 case FIFO_EVENT_APP_RX:
2488 ASSERT (e->fifo->client_thread_index == vcl_get_worker_index ());
2489 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2490 sid = e->fifo->client_session_index;
2491 if (!(session = vcl_session_get (wrk, sid)))
2493 session_events = session->vep.ev.events;
2494 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2497 events[*num_ev].events |= EPOLLIN;
2498 session_evt_data = session->vep.ev.data.u64;
2499 session->has_rx_evt = 1;
2501 case FIFO_EVENT_APP_TX:
2502 sid = e->fifo->client_session_index;
2503 if (!(session = vcl_session_get (wrk, sid)))
2505 session_events = session->vep.ev.events;
2506 if (!(EPOLLOUT & session_events))
2509 events[*num_ev].events |= EPOLLOUT;
2510 session_evt_data = session->vep.ev.data.u64;
2511 svm_fifo_reset_tx_ntf (session->tx_fifo);
2513 case SESSION_IO_EVT_CT_TX:
2514 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2515 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
2516 if (PREDICT_FALSE (!session))
2518 sid = session->session_index;
2519 session_events = session->vep.ev.events;
2520 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2523 events[*num_ev].events |= EPOLLIN;
2524 session_evt_data = session->vep.ev.data.u64;
2525 session->has_rx_evt = 1;
2527 case SESSION_IO_EVT_CT_RX:
2528 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
2529 if (PREDICT_FALSE (!session))
2531 sid = session->session_index;
2532 session_events = session->vep.ev.events;
2533 if (!(EPOLLOUT & session_events))
2536 events[*num_ev].events |= EPOLLOUT;
2537 session_evt_data = session->vep.ev.data.u64;
2538 svm_fifo_reset_tx_ntf (session->tx_fifo);
2540 case SESSION_CTRL_EVT_ACCEPTED:
2541 session = vcl_session_accepted (wrk,
2542 (session_accepted_msg_t *) e->data);
2546 session_events = session->vep.ev.events;
2547 if (!(EPOLLIN & session_events))
2551 events[*num_ev].events |= EPOLLIN;
2552 session_evt_data = session->vep.ev.data.u64;
2554 case SESSION_CTRL_EVT_CONNECTED:
2555 connected_msg = (session_connected_msg_t *) e->data;
2556 vcl_session_connected_handler (wrk, connected_msg);
2557 /* Generate EPOLLOUT because there's no connected event */
2558 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2559 if (!(session = vcl_session_get (wrk, sid)))
2561 session_events = session->vep.ev.events;
2562 if (!(EPOLLOUT & session_events))
2565 events[*num_ev].events |= EPOLLOUT;
2566 session_evt_data = session->vep.ev.data.u64;
2568 case SESSION_CTRL_EVT_DISCONNECTED:
2569 disconnected_msg = (session_disconnected_msg_t *) e->data;
2570 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2573 session_events = session->vep.ev.events;
2574 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2577 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2578 session_evt_data = session->vep.ev.data.u64;
2580 case SESSION_CTRL_EVT_RESET:
2581 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2582 if (!(session = vcl_session_get (wrk, sid)))
2584 session_events = session->vep.ev.events;
2585 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2588 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2589 session_evt_data = session->vep.ev.data.u64;
2591 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2592 vcl_session_unlisten_reply_handler (wrk, e->data);
2594 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2595 vcl_session_req_worker_update_handler (wrk, e->data);
2597 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2598 vcl_session_worker_update_reply_handler (wrk, e->data);
2601 VDBG (0, "unhandled: %u", e->event_type);
2607 events[*num_ev].data.u64 = session_evt_data;
2608 if (EPOLLONESHOT & session_events)
2610 session = vcl_session_get (wrk, sid);
2611 session->vep.ev.events = 0;
2618 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2619 struct epoll_event *events, u32 maxevents,
2620 double wait_for_time, u32 * num_ev)
2622 svm_msg_q_msg_t *msg;
2626 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2627 goto handle_dequeued;
2629 svm_msg_q_lock (mq);
2630 if (svm_msg_q_is_empty (mq))
2634 svm_msg_q_unlock (mq);
2637 else if (wait_for_time < 0)
2639 svm_msg_q_wait (mq);
2643 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2645 svm_msg_q_unlock (mq);
2650 vcl_mq_dequeue_batch (wrk, mq);
2651 svm_msg_q_unlock (mq);
2654 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2656 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2657 e = svm_msg_q_msg_data (mq, msg);
2658 if (*num_ev < maxevents)
2659 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2661 vec_add1 (wrk->unhandled_evts_vector, *e);
2662 svm_msg_q_free_msg (mq, msg);
2664 vec_reset_length (wrk->mq_msg_vector);
2665 vcl_handle_pending_wrk_updates (wrk);
2670 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2671 int maxevents, u32 n_evts, double wait_for_time)
2673 vcl_cut_through_registration_t *cr;
2674 double total_wait = 0, wait_slice;
2677 wait_for_time = (wait_for_time == -1) ? (double) 1e6 : wait_for_time;
2678 wait_slice = wrk->cut_through_registrations ? 10e-6 : wait_for_time;
2682 vcl_ct_registration_lock (wrk);
2684 pool_foreach (cr, wrk->cut_through_registrations, ({
2685 vcl_epoll_wait_handle_mq (wrk, cr->mq, events, maxevents, 0, &n_evts);
2688 vcl_ct_registration_unlock (wrk);
2690 rv = vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events,
2691 maxevents, n_evts ? 0 : wait_slice,
2694 total_wait += wait_slice;
2698 while (total_wait < wait_for_time);
2703 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2704 int maxevents, u32 n_evts, double wait_for_time)
2706 vcl_mq_evt_conn_t *mqc;
2707 int __clib_unused n_read;
2711 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2713 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2714 vec_len (wrk->mq_events), wait_for_time);
2715 for (i = 0; i < n_mq_evts; i++)
2717 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2718 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2719 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2721 if (!n_evts && n_mq_evts > 0)
2724 return (int) n_evts;
2728 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2729 int maxevents, double wait_for_time)
2731 vcl_worker_t *wrk = vcl_worker_get_current ();
2732 vcl_session_t *vep_session;
2736 if (PREDICT_FALSE (maxevents <= 0))
2738 clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
2739 getpid (), maxevents);
2740 return VPPCOM_EINVAL;
2743 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2745 return VPPCOM_EBADFD;
2747 if (PREDICT_FALSE (!vep_session->is_vep))
2749 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2750 getpid (), vep_handle);
2751 return VPPCOM_EINVAL;
2754 memset (events, 0, sizeof (*events) * maxevents);
2756 if (vec_len (wrk->unhandled_evts_vector))
2758 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2760 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2762 if (n_evts == maxevents)
2769 vec_delete (wrk->unhandled_evts_vector, i, 0);
2772 if (vcm->cfg.use_mq_eventfd)
2773 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2776 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2781 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2782 void *buffer, uint32_t * buflen)
2784 vcl_worker_t *wrk = vcl_worker_get_current ();
2785 vcl_session_t *session;
2787 u32 *flags = buffer, tmp_flags = 0;
2788 vppcom_endpt_t *ep = buffer;
2790 session = vcl_session_get_w_handle (wrk, session_handle);
2792 return VPPCOM_EBADFD;
2796 case VPPCOM_ATTR_GET_NREAD:
2797 rv = vcl_session_read_ready (session);
2798 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d", rv);
2801 case VPPCOM_ATTR_GET_NWRITE:
2802 rv = vcl_session_write_ready (session);
2803 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
2804 getpid (), session_handle, rv);
2807 case VPPCOM_ATTR_GET_FLAGS:
2808 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2810 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2811 VCL_SESS_ATTR_NONBLOCK));
2812 *buflen = sizeof (*flags);
2813 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
2814 "is_nonblocking = %u", getpid (),
2815 session_handle, *flags,
2816 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2822 case VPPCOM_ATTR_SET_FLAGS:
2823 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2825 if (*flags & O_NONBLOCK)
2826 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2828 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2830 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
2831 " is_nonblocking = %u",
2832 getpid (), session_handle, *flags,
2833 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2839 case VPPCOM_ATTR_GET_PEER_ADDR:
2840 if (PREDICT_TRUE (buffer && buflen &&
2841 (*buflen >= sizeof (*ep)) && ep->ip))
2843 ep->is_ip4 = session->transport.is_ip4;
2844 ep->port = session->transport.rmt_port;
2845 if (session->transport.is_ip4)
2846 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2847 sizeof (ip4_address_t));
2849 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2850 sizeof (ip6_address_t));
2851 *buflen = sizeof (*ep);
2852 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
2853 "addr = %U, port %u", getpid (),
2854 session_handle, ep->is_ip4, format_ip46_address,
2855 &session->transport.rmt_ip,
2856 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2857 clib_net_to_host_u16 (ep->port));
2863 case VPPCOM_ATTR_GET_LCL_ADDR:
2864 if (PREDICT_TRUE (buffer && buflen &&
2865 (*buflen >= sizeof (*ep)) && ep->ip))
2867 ep->is_ip4 = session->transport.is_ip4;
2868 ep->port = session->transport.lcl_port;
2869 if (session->transport.is_ip4)
2870 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2871 sizeof (ip4_address_t));
2873 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2874 sizeof (ip6_address_t));
2875 *buflen = sizeof (*ep);
2876 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
2877 " addr = %U port %d", getpid (),
2878 session_handle, ep->is_ip4, format_ip46_address,
2879 &session->transport.lcl_ip,
2880 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2881 clib_net_to_host_u16 (ep->port));
2887 case VPPCOM_ATTR_GET_LIBC_EPFD:
2888 rv = session->libc_epfd;
2889 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
2893 case VPPCOM_ATTR_SET_LIBC_EPFD:
2894 if (PREDICT_TRUE (buffer && buflen &&
2895 (*buflen == sizeof (session->libc_epfd))))
2897 session->libc_epfd = *(int *) buffer;
2898 *buflen = sizeof (session->libc_epfd);
2900 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, "
2901 "buflen %d", getpid (), session->libc_epfd, *buflen);
2907 case VPPCOM_ATTR_GET_PROTOCOL:
2908 if (buffer && buflen && (*buflen >= sizeof (int)))
2910 *(int *) buffer = session->session_type;
2911 *buflen = sizeof (int);
2913 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2914 getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP",
2921 case VPPCOM_ATTR_GET_LISTEN:
2922 if (buffer && buflen && (*buflen >= sizeof (int)))
2924 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2925 VCL_SESS_ATTR_LISTEN);
2926 *buflen = sizeof (int);
2928 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d",
2929 getpid (), *(int *) buffer, *buflen);
2935 case VPPCOM_ATTR_GET_ERROR:
2936 if (buffer && buflen && (*buflen >= sizeof (int)))
2938 *(int *) buffer = 0;
2939 *buflen = sizeof (int);
2941 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2942 getpid (), *(int *) buffer, *buflen);
2948 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2949 if (buffer && buflen && (*buflen >= sizeof (u32)))
2953 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2954 session->tx_fifo ? session->tx_fifo->nitems :
2955 vcm->cfg.tx_fifo_size);
2956 *buflen = sizeof (u32);
2958 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
2959 "buflen %d, #VPP-TBD#", getpid (),
2960 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2966 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2967 if (buffer && buflen && (*buflen == sizeof (u32)))
2970 session->sndbuf_size = *(u32 *) buffer;
2971 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), "
2972 "buflen %d, #VPP-TBD#", getpid (),
2973 session->sndbuf_size, session->sndbuf_size, *buflen);
2979 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2980 if (buffer && buflen && (*buflen >= sizeof (u32)))
2984 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2985 session->rx_fifo ? session->rx_fifo->nitems :
2986 vcm->cfg.rx_fifo_size);
2987 *buflen = sizeof (u32);
2989 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
2990 "buflen %d, #VPP-TBD#", getpid (),
2991 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2997 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2998 if (buffer && buflen && (*buflen == sizeof (u32)))
3001 session->rcvbuf_size = *(u32 *) buffer;
3002 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), "
3003 "buflen %d, #VPP-TBD#", getpid (),
3004 session->sndbuf_size, session->sndbuf_size, *buflen);
3010 case VPPCOM_ATTR_GET_REUSEADDR:
3011 if (buffer && buflen && (*buflen >= sizeof (int)))
3014 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3015 VCL_SESS_ATTR_REUSEADDR);
3016 *buflen = sizeof (int);
3018 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
3019 "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3025 case VPPCOM_ATTR_SET_REUSEADDR:
3026 if (buffer && buflen && (*buflen == sizeof (int)) &&
3027 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3030 if (*(int *) buffer)
3031 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3033 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3035 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d,"
3036 " #VPP-TBD#", getpid (),
3037 VCL_SESS_ATTR_TEST (session->attr,
3038 VCL_SESS_ATTR_REUSEADDR), *buflen);
3044 case VPPCOM_ATTR_GET_REUSEPORT:
3045 if (buffer && buflen && (*buflen >= sizeof (int)))
3048 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3049 VCL_SESS_ATTR_REUSEPORT);
3050 *buflen = sizeof (int);
3052 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d,"
3053 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3059 case VPPCOM_ATTR_SET_REUSEPORT:
3060 if (buffer && buflen && (*buflen == sizeof (int)) &&
3061 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3064 if (*(int *) buffer)
3065 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3067 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3069 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d,"
3070 " #VPP-TBD#", getpid (),
3071 VCL_SESS_ATTR_TEST (session->attr,
3072 VCL_SESS_ATTR_REUSEPORT), *buflen);
3078 case VPPCOM_ATTR_GET_BROADCAST:
3079 if (buffer && buflen && (*buflen >= sizeof (int)))
3082 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3083 VCL_SESS_ATTR_BROADCAST);
3084 *buflen = sizeof (int);
3086 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d,"
3087 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3093 case VPPCOM_ATTR_SET_BROADCAST:
3094 if (buffer && buflen && (*buflen == sizeof (int)))
3097 if (*(int *) buffer)
3098 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3100 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3102 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, "
3103 "#VPP-TBD#", getpid (),
3104 VCL_SESS_ATTR_TEST (session->attr,
3105 VCL_SESS_ATTR_BROADCAST), *buflen);
3111 case VPPCOM_ATTR_GET_V6ONLY:
3112 if (buffer && buflen && (*buflen >= sizeof (int)))
3115 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3116 VCL_SESS_ATTR_V6ONLY);
3117 *buflen = sizeof (int);
3119 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, "
3120 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3126 case VPPCOM_ATTR_SET_V6ONLY:
3127 if (buffer && buflen && (*buflen == sizeof (int)))
3130 if (*(int *) buffer)
3131 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3133 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3135 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, "
3136 "#VPP-TBD#", getpid (),
3137 VCL_SESS_ATTR_TEST (session->attr,
3138 VCL_SESS_ATTR_V6ONLY), *buflen);
3144 case VPPCOM_ATTR_GET_KEEPALIVE:
3145 if (buffer && buflen && (*buflen >= sizeof (int)))
3148 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3149 VCL_SESS_ATTR_KEEPALIVE);
3150 *buflen = sizeof (int);
3152 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, "
3153 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3159 case VPPCOM_ATTR_SET_KEEPALIVE:
3160 if (buffer && buflen && (*buflen == sizeof (int)))
3163 if (*(int *) buffer)
3164 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3166 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3168 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, "
3169 "#VPP-TBD#", getpid (),
3170 VCL_SESS_ATTR_TEST (session->attr,
3171 VCL_SESS_ATTR_KEEPALIVE), *buflen);
3177 case VPPCOM_ATTR_GET_TCP_NODELAY:
3178 if (buffer && buflen && (*buflen >= sizeof (int)))
3181 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3182 VCL_SESS_ATTR_TCP_NODELAY);
3183 *buflen = sizeof (int);
3185 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, "
3186 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3192 case VPPCOM_ATTR_SET_TCP_NODELAY:
3193 if (buffer && buflen && (*buflen == sizeof (int)))
3196 if (*(int *) buffer)
3197 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3199 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3201 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, "
3202 "#VPP-TBD#", getpid (),
3203 VCL_SESS_ATTR_TEST (session->attr,
3204 VCL_SESS_ATTR_TCP_NODELAY), *buflen);
3210 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3211 if (buffer && buflen && (*buflen >= sizeof (int)))
3214 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3215 VCL_SESS_ATTR_TCP_KEEPIDLE);
3216 *buflen = sizeof (int);
3218 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, "
3219 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3225 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3226 if (buffer && buflen && (*buflen == sizeof (int)))
3229 if (*(int *) buffer)
3230 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3232 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3234 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, "
3235 "#VPP-TBD#", getpid (),
3236 VCL_SESS_ATTR_TEST (session->attr,
3237 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3243 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3244 if (buffer && buflen && (*buflen >= sizeof (int)))
3247 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3248 VCL_SESS_ATTR_TCP_KEEPINTVL);
3249 *buflen = sizeof (int);
3251 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, "
3252 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3258 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3259 if (buffer && buflen && (*buflen == sizeof (int)))
3262 if (*(int *) buffer)
3263 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3265 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3267 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, "
3268 "#VPP-TBD#", getpid (),
3269 VCL_SESS_ATTR_TEST (session->attr,
3270 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3276 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3277 if (buffer && buflen && (*buflen >= sizeof (u32)))
3280 *(u32 *) buffer = session->user_mss;
3281 *buflen = sizeof (int);
3283 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d,"
3284 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3290 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3291 if (buffer && buflen && (*buflen == sizeof (u32)))
3294 session->user_mss = *(u32 *) buffer;
3296 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, "
3297 "#VPP-TBD#", getpid (), session->user_mss, *buflen);
3303 case VPPCOM_ATTR_SET_SHUT:
3304 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3305 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3306 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3307 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3310 case VPPCOM_ATTR_GET_SHUT:
3311 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3313 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3316 *(int *) buffer = SHUT_RD;
3317 else if (tmp_flags == 2)
3318 *(int *) buffer = SHUT_WR;
3319 else if (tmp_flags == 3)
3320 *(int *) buffer = SHUT_RDWR;
3321 *buflen = sizeof (int);
3332 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3333 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3335 vcl_worker_t *wrk = vcl_worker_get_current ();
3337 vcl_session_t *session = 0;
3341 session = vcl_session_get_w_handle (wrk, session_handle);
3342 if (PREDICT_FALSE (!session))
3344 VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
3345 getpid (), session_handle);
3346 return VPPCOM_EBADFD;
3348 ep->is_ip4 = session->transport.is_ip4;
3349 ep->port = session->transport.rmt_port;
3353 rv = vppcom_session_read (session_handle, buffer, buflen);
3354 else if (flags & MSG_PEEK)
3355 rv = vppcom_session_peek (session_handle, buffer, buflen);
3358 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3359 return VPPCOM_EAFNOSUPPORT;
3364 if (session->transport.is_ip4)
3365 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3366 sizeof (ip4_address_t));
3368 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3369 sizeof (ip6_address_t));
3376 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3377 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3380 return VPPCOM_EINVAL;
3385 return VPPCOM_EINVAL;
3390 // TBD check the flags and do the right thing
3391 VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.",
3392 getpid (), flags, flags);
3395 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3399 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3401 vcl_worker_t *wrk = vcl_worker_get_current ();
3402 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3403 u32 i, keep_trying = 1;
3404 svm_msg_q_msg_t msg;
3408 VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
3409 getpid (), vp, n_sids, wait_for_time);
3412 return VPPCOM_EFAULT;
3416 vcl_session_t *session;
3418 /* Dequeue all events and drop all unhandled io events */
3419 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3421 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3422 vcl_handle_mq_event (wrk, e);
3423 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3425 vec_reset_length (wrk->unhandled_evts_vector);
3427 for (i = 0; i < n_sids; i++)
3429 session = vcl_session_get (wrk, vp[i].sh);
3432 vp[i].revents = POLLHUP;
3439 if (POLLIN & vp[i].events)
3441 rv = vcl_session_read_ready (session);
3444 vp[i].revents |= POLLIN;
3451 case VPPCOM_ECONNRESET:
3452 vp[i].revents = POLLHUP;
3456 vp[i].revents = POLLERR;
3463 if (POLLOUT & vp[i].events)
3465 rv = vcl_session_write_ready (session);
3468 vp[i].revents |= POLLOUT;
3475 case VPPCOM_ECONNRESET:
3476 vp[i].revents = POLLHUP;
3480 vp[i].revents = POLLERR;
3487 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3489 vp[i].revents = POLLNVAL;
3493 if (wait_for_time != -1)
3494 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3496 while ((num_ev == 0) && keep_trying);
3498 if (VPPCOM_DEBUG > 3)
3500 clib_warning ("VCL<%d>: returning %d", getpid (), num_ev);
3501 for (i = 0; i < n_sids; i++)
3503 clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
3504 ".revents 0x%x", getpid (), i, vp[i].sh, vp[i].sh,
3505 vp[i].events, vp[i].revents);
3512 vppcom_mq_epoll_fd (void)
3514 vcl_worker_t *wrk = vcl_worker_get_current ();
3515 return wrk->mqs_epfd;
3519 vppcom_session_index (vcl_session_handle_t session_handle)
3521 return session_handle & 0xFFFFFF;
3525 vppcom_session_worker (vcl_session_handle_t session_handle)
3527 return session_handle >> 24;
3531 vppcom_worker_register (void)
3533 if (!vcl_worker_alloc_and_init ())
3534 return VPPCOM_EEXIST;
3536 if (vcl_worker_set_bapi ())
3537 return VPPCOM_EEXIST;
3539 if (vcl_worker_register_with_vpp ())
3540 return VPPCOM_EEXIST;
3546 vppcom_worker_index (void)
3548 return vcl_get_worker_index ();
3552 vppcom_worker_mqs_epfd (void)
3554 vcl_worker_t *wrk = vcl_worker_get_current ();
3555 if (!vcm->cfg.use_mq_eventfd)
3557 return wrk->mqs_epfd;
3561 * fd.io coding-style-patch-verification: ON
3564 * eval: (c-set-style "gnu")