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 <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);
276 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
277 VDBG (0, "ERROR: couldn't find listen session: unknown vpp listener "
278 "handle %llx", mp->listener_handle);
279 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
280 VNET_API_ERROR_INVALID_ARGUMENT);
281 vcl_session_free (wrk, session);
282 return VCL_INVALID_SESSION_INDEX;
285 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
286 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
288 if (vcl_wait_for_segment (mp->segment_handle))
290 VDBG (0, "segment for session %u couldn't be mounted!",
291 session->session_index);
292 return VCL_INVALID_SESSION_INDEX;
295 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
297 rx_fifo->client_session_index = session->session_index;
298 tx_fifo->client_session_index = session->session_index;
299 rx_fifo->client_thread_index = vcl_get_worker_index ();
300 tx_fifo->client_thread_index = vcl_get_worker_index ();
301 vpp_wrk_index = tx_fifo->master_thread_index;
302 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
303 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
305 session->vpp_handle = mp->handle;
306 session->vpp_thread_index = rx_fifo->master_thread_index;
307 session->client_context = mp->context;
308 session->rx_fifo = rx_fifo;
309 session->tx_fifo = tx_fifo;
311 session->session_state = STATE_ACCEPT;
312 session->transport.rmt_port = mp->port;
313 session->transport.is_ip4 = mp->is_ip4;
314 clib_memcpy_fast (&session->transport.rmt_ip, mp->ip,
315 sizeof (ip46_address_t));
317 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
318 session->transport.lcl_port = listen_session->transport.lcl_port;
319 session->transport.lcl_ip = listen_session->transport.lcl_ip;
320 session->session_type = listen_session->session_type;
321 session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
323 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
324 " port %d queue %p!", session->session_index, mp->handle,
325 mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip,
326 mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
327 clib_net_to_host_u16 (mp->port), session->vpp_evt_q);
328 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
330 return session->session_index;
334 vcl_session_connected_handler (vcl_worker_t * wrk,
335 session_connected_msg_t * mp)
337 u32 session_index, vpp_wrk_index;
338 svm_fifo_t *rx_fifo, *tx_fifo;
339 vcl_session_t *session = 0;
341 session_index = mp->context;
342 session = vcl_session_get (wrk, session_index);
345 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
346 mp->handle, session_index);
347 return VCL_INVALID_SESSION_INDEX;
351 VDBG (0, "ERROR: session index %u: connect failed! %U",
352 session_index, format_api_error, ntohl (mp->retval));
353 session->session_state = STATE_FAILED;
354 session->vpp_handle = mp->handle;
355 return session_index;
358 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
359 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
360 if (vcl_wait_for_segment (mp->segment_handle))
362 VDBG (0, "segment for session %u couldn't be mounted!",
363 session->session_index);
364 session->session_state = STATE_FAILED;
365 return VCL_INVALID_SESSION_INDEX;
368 rx_fifo->client_session_index = session_index;
369 tx_fifo->client_session_index = session_index;
370 rx_fifo->client_thread_index = vcl_get_worker_index ();
371 tx_fifo->client_thread_index = vcl_get_worker_index ();
373 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
375 vpp_wrk_index = tx_fifo->master_thread_index;
376 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
377 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
381 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
382 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
383 if (vcl_wait_for_segment (mp->ct_segment_handle))
385 VDBG (0, "ct segment for session %u couldn't be mounted!",
386 session->session_index);
387 session->session_state = STATE_FAILED;
388 return VCL_INVALID_SESSION_INDEX;
392 session->rx_fifo = rx_fifo;
393 session->tx_fifo = tx_fifo;
394 session->vpp_handle = mp->handle;
395 session->vpp_thread_index = rx_fifo->master_thread_index;
396 session->transport.is_ip4 = mp->is_ip4;
397 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
398 sizeof (session->transport.lcl_ip));
399 session->transport.lcl_port = mp->lcl_port;
400 session->session_state = STATE_CONNECT;
402 /* Add it to lookup table */
403 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
405 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
406 " refcnt %d", session_index, mp->handle, session->rx_fifo,
407 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
409 return session_index;
413 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
415 vcl_session_msg_t *accepted_msg;
418 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
420 accepted_msg = &session->accept_evts_fifo[i];
421 if (accepted_msg->accepted_msg.handle == handle)
423 accepted_msg->flags |= flags;
431 vcl_session_reset_handler (vcl_worker_t * wrk,
432 session_reset_msg_t * reset_msg)
434 vcl_session_t *session;
437 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
438 session = vcl_session_get (wrk, sid);
441 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
442 return VCL_INVALID_SESSION_INDEX;
445 /* Caught a reset before actually accepting the session */
446 if (session->session_state == STATE_LISTEN)
449 if (!vcl_flag_accepted_session (session, reset_msg->handle,
450 VCL_ACCEPTED_F_RESET))
451 VDBG (0, "session was not accepted!");
452 return VCL_INVALID_SESSION_INDEX;
455 session->session_state = STATE_DISCONNECT;
456 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
461 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
463 vcl_session_t *session;
464 u32 sid = mp->context;
466 session = vcl_session_get (wrk, sid);
469 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
470 format_api_error, mp->retval);
473 session->session_state = STATE_FAILED;
474 session->vpp_handle = mp->handle;
479 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
481 return VCL_INVALID_SESSION_INDEX;
485 session->vpp_handle = mp->handle;
486 session->transport.is_ip4 = mp->lcl_is_ip4;
487 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
488 sizeof (ip46_address_t));
489 session->transport.lcl_port = mp->lcl_port;
490 vcl_session_table_add_listener (wrk, mp->handle, sid);
491 session->session_state = STATE_LISTEN;
493 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
494 vec_validate (wrk->vpp_event_queues, 0);
495 wrk->vpp_event_queues[0] = session->vpp_evt_q;
497 if (session->is_dgram)
499 svm_fifo_t *rx_fifo, *tx_fifo;
500 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
501 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
502 rx_fifo->client_session_index = sid;
503 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
504 tx_fifo->client_session_index = sid;
505 session->rx_fifo = rx_fifo;
506 session->tx_fifo = tx_fifo;
509 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
514 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
516 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
519 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
520 if (!s || s->session_state != STATE_DISCONNECT)
522 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
527 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
528 s->session_index, mp->handle, format_api_error, ntohl (mp->retval));
530 if (mp->context != wrk->wrk_index)
531 VDBG (0, "wrong context");
533 vcl_session_table_del_vpp_handle (wrk, mp->handle);
534 vcl_session_free (wrk, s);
537 static vcl_session_t *
538 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
540 vcl_session_msg_t *vcl_msg;
541 vcl_session_t *session;
543 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
544 if (PREDICT_FALSE (session != 0))
545 VWRN ("session overlap handle %lu state %u!", msg->handle,
546 session->session_state);
548 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
551 VERR ("couldn't find listen session: listener handle %llx",
552 msg->listener_handle);
556 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
557 vcl_msg->accepted_msg = *msg;
558 /* Session handle points to listener until fully accepted by app */
559 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
564 static vcl_session_t *
565 vcl_session_disconnected_handler (vcl_worker_t * wrk,
566 session_disconnected_msg_t * msg)
568 vcl_session_t *session;
570 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
573 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
577 /* Caught a disconnect before actually accepting the session */
578 if (session->session_state == STATE_LISTEN)
580 if (!vcl_flag_accepted_session (session, msg->handle,
581 VCL_ACCEPTED_F_CLOSED))
582 VDBG (0, "session was not accepted!");
586 session->session_state = STATE_VPP_CLOSING;
591 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
593 session_req_worker_update_msg_t *msg;
596 msg = (session_req_worker_update_msg_t *) data;
597 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
601 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
605 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
607 session_worker_update_reply_msg_t *msg;
610 msg = (session_worker_update_reply_msg_t *) data;
611 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
614 VDBG (0, "unknown handle 0x%llx", msg->handle);
617 if (vcl_wait_for_segment (msg->segment_handle))
619 clib_warning ("segment for session %u couldn't be mounted!",
626 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
627 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
628 s->rx_fifo->client_session_index = s->session_index;
629 s->tx_fifo->client_session_index = s->session_index;
630 s->rx_fifo->client_thread_index = wrk->wrk_index;
631 s->tx_fifo->client_thread_index = wrk->wrk_index;
633 s->session_state = STATE_UPDATED;
635 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
636 s->vpp_handle, wrk->wrk_index);
640 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
642 session_disconnected_msg_t *disconnected_msg;
643 vcl_session_t *session;
645 switch (e->event_type)
647 case SESSION_IO_EVT_RX:
648 case SESSION_IO_EVT_TX:
649 session = vcl_session_get (wrk, e->session_index);
650 if (!session || !(session->session_state & STATE_OPEN))
652 vec_add1 (wrk->unhandled_evts_vector, *e);
654 case SESSION_CTRL_EVT_ACCEPTED:
655 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
657 case SESSION_CTRL_EVT_CONNECTED:
658 vcl_session_connected_handler (wrk,
659 (session_connected_msg_t *) e->data);
661 case SESSION_CTRL_EVT_DISCONNECTED:
662 disconnected_msg = (session_disconnected_msg_t *) e->data;
663 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
666 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
667 session->vpp_handle);
669 case SESSION_CTRL_EVT_RESET:
670 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
672 case SESSION_CTRL_EVT_BOUND:
673 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
675 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
676 vcl_session_unlisten_reply_handler (wrk, e->data);
678 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
679 vcl_session_req_worker_update_handler (wrk, e->data);
681 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
682 vcl_session_worker_update_reply_handler (wrk, e->data);
685 clib_warning ("unhandled %u", e->event_type);
691 vppcom_wait_for_session_state_change (u32 session_index,
692 vcl_session_state_t state,
695 vcl_worker_t *wrk = vcl_worker_get_current ();
696 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
697 vcl_session_t *volatile session;
703 session = vcl_session_get (wrk, session_index);
704 if (PREDICT_FALSE (!session))
706 return VPPCOM_EBADFD;
708 if (session->session_state & state)
712 if (session->session_state & STATE_FAILED)
714 return VPPCOM_ECONNREFUSED;
717 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
722 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
723 vcl_handle_mq_event (wrk, e);
724 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
726 while (clib_time_now (&wrk->clib_time) < timeout);
728 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
729 vppcom_session_state_str (state));
730 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
732 return VPPCOM_ETIMEDOUT;
736 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
738 vcl_session_state_t state;
742 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
745 vec_foreach (sip, wrk->pending_session_wrk_updates)
747 s = vcl_session_get (wrk, *sip);
748 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
749 state = s->session_state;
750 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
751 s->session_state = state;
753 vec_reset_length (wrk->pending_session_wrk_updates);
757 vcl_flush_mq_events (void)
759 vcl_worker_t *wrk = vcl_worker_get_current ();
760 svm_msg_q_msg_t *msg;
765 mq = wrk->app_event_queue;
767 vcl_mq_dequeue_batch (wrk, mq);
768 svm_msg_q_unlock (mq);
770 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
772 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
773 e = svm_msg_q_msg_data (mq, msg);
774 vcl_handle_mq_event (wrk, e);
775 svm_msg_q_free_msg (mq, msg);
777 vec_reset_length (wrk->mq_msg_vector);
778 vcl_handle_pending_wrk_updates (wrk);
782 vppcom_app_session_enable (void)
786 if (vcm->app_state != STATE_APP_ENABLED)
788 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
789 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
790 if (PREDICT_FALSE (rv))
792 VDBG (0, "application session enable timed out! returning %d (%s)",
793 rv, vppcom_retval_str (rv));
801 vppcom_app_attach (void)
805 vppcom_app_send_attach ();
806 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
807 if (PREDICT_FALSE (rv))
809 VDBG (0, "application attach timed out! returning %d (%s)", rv,
810 vppcom_retval_str (rv));
818 vppcom_session_unbind (u32 session_handle)
820 vcl_worker_t *wrk = vcl_worker_get_current ();
821 vcl_session_t *session = 0;
824 session = vcl_session_get_w_handle (wrk, session_handle);
826 return VPPCOM_EBADFD;
828 vpp_handle = session->vpp_handle;
829 session->vpp_handle = ~0;
830 session->session_state = STATE_DISCONNECT;
832 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
834 vcl_evt (VCL_EVT_UNBIND, session);
835 vppcom_send_unbind_sock (wrk, vpp_handle);
841 vppcom_session_disconnect (u32 session_handle)
843 vcl_worker_t *wrk = vcl_worker_get_current ();
844 svm_msg_q_t *vpp_evt_q;
845 vcl_session_t *session;
846 vcl_session_state_t state;
849 session = vcl_session_get_w_handle (wrk, session_handle);
851 return VPPCOM_EBADFD;
853 vpp_handle = session->vpp_handle;
854 state = session->session_state;
856 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
857 vpp_handle, state, vppcom_session_state_str (state));
859 if (PREDICT_FALSE (state & STATE_LISTEN))
861 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
862 return VPPCOM_EBADFD;
865 if (state & STATE_VPP_CLOSING)
867 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
868 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
870 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
871 session->session_index, vpp_handle);
875 VDBG (1, "session %u [0x%llx]: sending disconnect...",
876 session->session_index, vpp_handle);
877 vppcom_send_disconnect_session (vpp_handle);
886 * Notify vpp of the disconnect and mark the worker as free. If we're the
887 * last worker, do a full cleanup otherwise, since we're probably a forked
888 * child, avoid syscalls as much as possible. We might've lost privileges.
891 vppcom_app_exit (void)
893 if (!pool_elts (vcm->workers))
895 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
896 vcl_set_worker_index (~0);
898 if (vec_len (vcm->workers) == 1)
899 vl_client_disconnect_from_vlib ();
901 vl_client_send_disconnect (1 /* vpp should cleanup */ );
905 * VPPCOM Public API functions
908 vppcom_app_create (char *app_name)
910 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
915 VDBG (1, "already initialized");
916 return VPPCOM_EEXIST;
920 vppcom_cfg (&vcm->cfg);
923 vcm->main_cpu = pthread_self ();
924 vcm->main_pid = getpid ();
925 vcm->app_name = format (0, "%s", app_name);
926 vppcom_init_error_string_table ();
927 svm_fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
928 20 /* timeout in secs */ );
929 pool_alloc (vcm->workers, vcl_cfg->max_workers);
930 clib_spinlock_init (&vcm->workers_lock);
931 clib_rwlock_init (&vcm->segment_table_lock);
932 atexit (vppcom_app_exit);
934 /* Allocate default worker */
935 vcl_worker_alloc_and_init ();
937 /* API hookup and connect to VPP */
938 vppcom_api_hookup ();
940 vcm->app_state = STATE_APP_START;
941 rv = vppcom_connect_to_vpp (app_name);
944 VERR ("couldn't connect to VPP!");
947 VDBG (0, "sending session enable");
948 rv = vppcom_app_session_enable ();
951 VERR ("vppcom_app_session_enable() failed!");
955 VDBG (0, "sending app attach");
956 rv = vppcom_app_attach ();
959 VERR ("vppcom_app_attach() failed!");
963 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
964 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
970 vppcom_app_destroy (void)
973 f64 orig_app_timeout;
975 if (!pool_elts (vcm->workers))
978 vcl_evt (VCL_EVT_DETACH, vcm);
980 if (pool_elts (vcm->workers) == 1)
982 vppcom_app_send_detach ();
983 orig_app_timeout = vcm->cfg.app_timeout;
984 vcm->cfg.app_timeout = 2.0;
985 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
986 vcm->cfg.app_timeout = orig_app_timeout;
987 if (PREDICT_FALSE (rv))
988 VDBG (0, "application detach timed out! returning %d (%s)", rv,
989 vppcom_retval_str (rv));
990 vec_free (vcm->app_name);
991 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
995 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
998 vcl_set_worker_index (~0);
1000 vl_client_disconnect_from_vlib ();
1004 vppcom_session_create (u8 proto, u8 is_nonblocking)
1006 vcl_worker_t *wrk = vcl_worker_get_current ();
1007 vcl_session_t *session;
1009 session = vcl_session_alloc (wrk);
1011 session->session_type = proto;
1012 session->session_state = STATE_START;
1013 session->vpp_handle = ~0;
1014 session->is_dgram = proto == VPPCOM_PROTO_UDP;
1017 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1019 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1020 is_nonblocking, session_index);
1022 VDBG (0, "created session %u", session->session_index);
1024 return vcl_session_handle (session);
1028 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1029 vcl_session_handle_t sh, u8 do_disconnect)
1031 vcl_session_state_t state;
1032 u32 next_sh, vep_sh;
1037 is_vep = session->is_vep;
1038 next_sh = session->vep.next_sh;
1039 vep_sh = session->vep.vep_sh;
1040 state = session->session_state;
1041 vpp_handle = session->vpp_handle;
1043 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1047 while (next_sh != ~0)
1049 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1050 if (PREDICT_FALSE (rv < 0))
1051 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1052 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1053 vppcom_retval_str (rv));
1055 next_sh = session->vep.next_sh;
1060 if (session->is_vep_session)
1062 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1064 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1065 "failed! rv %d (%s)", session->session_index, vpp_handle,
1066 vep_sh, rv, vppcom_retval_str (rv));
1071 VDBG (1, "session %u [0x%llx] disconnect skipped",
1072 session->session_index, vpp_handle);
1076 if (state & STATE_LISTEN)
1078 rv = vppcom_session_unbind (sh);
1079 if (PREDICT_FALSE (rv < 0))
1080 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1081 "rv %d (%s)", session->session_index, vpp_handle, rv,
1082 vppcom_retval_str (rv));
1085 else if (state & STATE_OPEN)
1087 rv = vppcom_session_disconnect (sh);
1088 if (PREDICT_FALSE (rv < 0))
1089 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1090 " rv %d (%s)", session->session_index, vpp_handle,
1091 rv, vppcom_retval_str (rv));
1093 else if (state == STATE_DISCONNECT)
1095 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1096 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1097 session->vpp_handle, 0);
1101 VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
1104 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1105 vcl_session_free (wrk, session);
1106 vcl_evt (VCL_EVT_CLOSE, session, rv);
1112 vppcom_session_close (uint32_t session_handle)
1114 vcl_worker_t *wrk = vcl_worker_get_current ();
1115 vcl_session_t *session;
1117 session = vcl_session_get_w_handle (wrk, session_handle);
1119 return VPPCOM_EBADFD;
1120 return vcl_session_cleanup (wrk, session, session_handle,
1121 1 /* do_disconnect */ );
1125 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1127 vcl_worker_t *wrk = vcl_worker_get_current ();
1128 vcl_session_t *session = 0;
1131 return VPPCOM_EINVAL;
1133 session = vcl_session_get_w_handle (wrk, session_handle);
1135 return VPPCOM_EBADFD;
1137 if (session->is_vep)
1139 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1140 session->session_index);
1141 return VPPCOM_EBADFD;
1144 session->transport.is_ip4 = ep->is_ip4;
1146 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1147 sizeof (ip4_address_t));
1149 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1150 sizeof (ip6_address_t));
1151 session->transport.lcl_port = ep->port;
1153 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1154 "proto %s", session->session_index, session_handle,
1155 session->transport.is_ip4 ? "IPv4" : "IPv6",
1156 format_ip46_address, &session->transport.lcl_ip,
1157 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1158 clib_net_to_host_u16 (session->transport.lcl_port),
1159 vppcom_proto_str (session->session_type));
1160 vcl_evt (VCL_EVT_BIND, session);
1162 if (session->session_type == VPPCOM_PROTO_UDP)
1163 vppcom_session_listen (session_handle, 10);
1169 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1171 vcl_worker_t *wrk = vcl_worker_get_current ();
1172 vcl_session_t *listen_session = 0;
1173 u64 listen_vpp_handle;
1176 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1177 if (!listen_session || listen_session->is_vep)
1178 return VPPCOM_EBADFD;
1180 if (q_len == 0 || q_len == ~0)
1181 q_len = vcm->cfg.listen_queue_size;
1183 listen_vpp_handle = listen_session->vpp_handle;
1184 if (listen_session->session_state & STATE_LISTEN)
1186 VDBG (0, "session %u [0x%llx]: already in listen state!",
1187 listen_sh, listen_vpp_handle);
1191 VDBG (0, "session %u [0x%llx]: sending vpp listen request...",
1192 listen_sh, listen_vpp_handle);
1195 * Send listen request to vpp and wait for reply
1197 vppcom_send_bind_sock (listen_session);
1198 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1200 vcm->cfg.session_timeout);
1202 if (PREDICT_FALSE (rv))
1204 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1205 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1206 listen_sh, listen_session->vpp_handle, rv,
1207 vppcom_retval_str (rv));
1215 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1219 vcl_worker_t *wrk = vcl_worker_get_current ();
1220 vcl_session_t *session = 0;
1222 session = vcl_session_get_w_handle (wrk, session_handle);
1224 return VPPCOM_EBADFD;
1226 if (cert_len == 0 || cert_len == ~0)
1227 return VPPCOM_EBADFD;
1230 * Send listen request to vpp and wait for reply
1232 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1239 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1243 vcl_worker_t *wrk = vcl_worker_get_current ();
1244 vcl_session_t *session = 0;
1246 session = vcl_session_get_w_handle (wrk, session_handle);
1248 return VPPCOM_EBADFD;
1250 if (key_len == 0 || key_len == ~0)
1251 return VPPCOM_EBADFD;
1254 * Send listen request to vpp and wait for reply
1256 vppcom_send_application_tls_key_add (session, key, key_len);
1264 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1268 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1270 return VPPCOM_EBADFD;
1273 if (ls->session_state != STATE_LISTEN)
1275 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1276 " (%s)", ls->vpp_handle, ls->session_index, ls->session_state,
1277 vppcom_session_state_str (ls->session_state));
1278 return VPPCOM_EBADFD;
1284 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1287 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1288 vcl_worker_t *wrk = vcl_worker_get_current ();
1289 session_accepted_msg_t accepted_msg;
1290 vcl_session_t *listen_session = 0;
1291 vcl_session_t *client_session = 0;
1292 vcl_session_msg_t *evt;
1293 svm_msg_q_msg_t msg;
1298 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1299 if (!listen_session)
1300 return VPPCOM_EBADFD;
1302 listen_session_index = listen_session->session_index;
1303 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1306 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1308 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1309 accept_flags = evt->flags;
1310 accepted_msg = evt->accepted_msg;
1314 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1315 VCL_SESS_ATTR_NONBLOCK);
1316 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1317 return VPPCOM_EAGAIN;
1321 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1322 return VPPCOM_EAGAIN;
1324 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1325 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1327 clib_warning ("discarded event: %u", e->event_type);
1328 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1331 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1332 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1338 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg);
1339 listen_session = vcl_session_get (wrk, listen_session_index);
1340 client_session = vcl_session_get (wrk, client_session_index);
1342 if (flags & O_NONBLOCK)
1343 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1345 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1346 " flags %d, is_nonblocking %u", listen_session->session_index,
1347 listen_session->vpp_handle, client_session_index,
1348 client_session->vpp_handle, flags,
1349 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1353 ep->is_ip4 = client_session->transport.is_ip4;
1354 ep->port = client_session->transport.rmt_port;
1355 if (client_session->transport.is_ip4)
1356 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1357 sizeof (ip4_address_t));
1359 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1360 sizeof (ip6_address_t));
1363 vcl_send_session_accepted_reply (client_session->vpp_evt_q,
1364 client_session->client_context,
1365 client_session->vpp_handle, 0);
1367 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1368 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1369 client_session_index, client_session->vpp_handle,
1370 format_ip46_address, &client_session->transport.rmt_ip,
1371 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1372 clib_net_to_host_u16 (client_session->transport.rmt_port),
1373 format_ip46_address, &client_session->transport.lcl_ip,
1374 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1375 clib_net_to_host_u16 (client_session->transport.lcl_port));
1376 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1377 client_session_index);
1380 * Session might have been closed already
1384 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1385 client_session->session_state = STATE_VPP_CLOSING;
1386 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1387 client_session->session_state = STATE_DISCONNECT;
1389 return vcl_session_handle (client_session);
1393 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1395 vcl_worker_t *wrk = vcl_worker_get_current ();
1396 vcl_session_t *session = 0;
1400 session = vcl_session_get_w_handle (wrk, session_handle);
1402 return VPPCOM_EBADFD;
1403 session_index = session->session_index;
1405 if (PREDICT_FALSE (session->is_vep))
1407 VDBG (0, "ERROR: cannot connect epoll session %u!",
1408 session->session_index);
1409 return VPPCOM_EBADFD;
1412 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1414 VDBG (0, "session handle %u [0x%llx]: session already "
1415 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1416 session_handle, session->vpp_handle,
1417 session->transport.is_ip4 ? "IPv4" : "IPv6",
1418 format_ip46_address,
1419 &session->transport.rmt_ip, session->transport.is_ip4 ?
1420 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1421 clib_net_to_host_u16 (session->transport.rmt_port),
1422 vppcom_proto_str (session->session_type), session->session_state,
1423 vppcom_session_state_str (session->session_state));
1427 session->transport.is_ip4 = server_ep->is_ip4;
1428 if (session->transport.is_ip4)
1429 clib_memcpy_fast (&session->transport.rmt_ip.ip4, server_ep->ip,
1430 sizeof (ip4_address_t));
1432 clib_memcpy_fast (&session->transport.rmt_ip.ip6, server_ep->ip,
1433 sizeof (ip6_address_t));
1434 session->transport.rmt_port = server_ep->port;
1436 VDBG (0, "session handle %u [0x%llx]: connecting to server %s %U "
1437 "port %d proto %s", session_handle, session->vpp_handle,
1438 session->transport.is_ip4 ? "IPv4" : "IPv6",
1439 format_ip46_address,
1440 &session->transport.rmt_ip, session->transport.is_ip4 ?
1441 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1442 clib_net_to_host_u16 (session->transport.rmt_port),
1443 vppcom_proto_str (session->session_type));
1446 * Send connect request and wait for reply from vpp
1448 vppcom_send_connect_sock (session);
1449 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1450 vcm->cfg.session_timeout);
1452 session = vcl_session_get (wrk, session_index);
1453 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1454 session->vpp_handle, rv ? "failed" : "succeeded");
1460 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1462 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1466 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1469 vcl_worker_t *wrk = vcl_worker_get_current ();
1470 int n_read = 0, is_nonblocking;
1471 vcl_session_t *s = 0;
1472 svm_fifo_t *rx_fifo;
1473 svm_msg_q_msg_t msg;
1478 if (PREDICT_FALSE (!buf))
1479 return VPPCOM_EINVAL;
1481 s = vcl_session_get_w_handle (wrk, session_handle);
1482 if (PREDICT_FALSE (!s || s->is_vep))
1483 return VPPCOM_EBADFD;
1485 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1487 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1488 s->session_index, s->vpp_handle, s->session_state,
1489 vppcom_session_state_str (s->session_state));
1490 return vcl_session_closed_error (s);
1493 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1494 is_ct = vcl_session_is_ct (s);
1495 mq = wrk->app_event_queue;
1496 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1499 if (svm_fifo_is_empty (rx_fifo))
1503 svm_fifo_unset_event (s->rx_fifo);
1504 return VPPCOM_EWOULDBLOCK;
1506 while (svm_fifo_is_empty (rx_fifo))
1508 if (vcl_session_is_closing (s))
1509 return vcl_session_closing_error (s);
1511 svm_fifo_unset_event (s->rx_fifo);
1512 svm_msg_q_lock (mq);
1513 if (svm_msg_q_is_empty (mq))
1514 svm_msg_q_wait (mq);
1516 svm_msg_q_sub_w_lock (mq, &msg);
1517 e = svm_msg_q_msg_data (mq, &msg);
1518 svm_msg_q_unlock (mq);
1519 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1520 vcl_handle_mq_event (wrk, e);
1521 svm_msg_q_free_msg (mq, &msg);
1526 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1528 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1530 if (svm_fifo_is_empty (rx_fifo))
1531 svm_fifo_unset_event (s->rx_fifo);
1533 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1534 s->vpp_handle, n_read, rx_fifo);
1540 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1542 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1546 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1548 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1552 vppcom_session_read_segments (uint32_t session_handle,
1553 vppcom_data_segments_t ds)
1555 vcl_worker_t *wrk = vcl_worker_get_current ();
1556 int n_read = 0, is_nonblocking;
1557 vcl_session_t *s = 0;
1558 svm_fifo_t *rx_fifo;
1559 svm_msg_q_msg_t msg;
1564 s = vcl_session_get_w_handle (wrk, session_handle);
1565 if (PREDICT_FALSE (!s || s->is_vep))
1566 return VPPCOM_EBADFD;
1568 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1569 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;
1578 svm_fifo_unset_event (s->rx_fifo);
1580 if (svm_fifo_is_empty (rx_fifo))
1584 svm_fifo_unset_event (rx_fifo);
1585 return VPPCOM_EWOULDBLOCK;
1587 while (svm_fifo_is_empty (rx_fifo))
1589 if (vcl_session_is_closing (s))
1590 return vcl_session_closing_error (s);
1592 svm_fifo_unset_event (rx_fifo);
1593 svm_msg_q_lock (mq);
1594 if (svm_msg_q_is_empty (mq))
1595 svm_msg_q_wait (mq);
1597 svm_msg_q_sub_w_lock (mq, &msg);
1598 e = svm_msg_q_msg_data (mq, &msg);
1599 svm_msg_q_unlock (mq);
1600 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1601 vcl_handle_mq_event (wrk, e);
1602 svm_msg_q_free_msg (mq, &msg);
1606 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_segment_t *) ds);
1607 svm_fifo_unset_event (rx_fifo);
1613 vppcom_session_free_segments (uint32_t session_handle,
1614 vppcom_data_segments_t ds)
1616 vcl_worker_t *wrk = vcl_worker_get_current ();
1619 s = vcl_session_get_w_handle (wrk, session_handle);
1620 if (PREDICT_FALSE (!s || s->is_vep))
1623 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_segment_t *) ds);
1627 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1629 u32 first_copy = clib_min (ds[0].len, max_bytes);
1630 clib_memcpy_fast (buf, ds[0].data, first_copy);
1631 if (first_copy < max_bytes)
1633 clib_memcpy_fast (buf + first_copy, ds[1].data,
1634 clib_min (ds[1].len, max_bytes - first_copy));
1640 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1642 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1646 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1649 vcl_worker_t *wrk = vcl_worker_get_current ();
1650 int n_write, is_nonblocking;
1651 vcl_session_t *s = 0;
1652 session_evt_type_t et;
1653 svm_msg_q_msg_t msg;
1654 svm_fifo_t *tx_fifo;
1659 if (PREDICT_FALSE (!buf))
1660 return VPPCOM_EINVAL;
1662 s = vcl_session_get_w_handle (wrk, session_handle);
1663 if (PREDICT_FALSE (!s))
1664 return VPPCOM_EBADFD;
1666 if (PREDICT_FALSE (s->is_vep))
1668 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1669 " session!", s->session_index, s->vpp_handle);
1670 return VPPCOM_EBADFD;
1673 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1675 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1676 s->session_index, s->vpp_handle, s->session_state,
1677 vppcom_session_state_str (s->session_state));
1678 return vcl_session_closed_error (s);;
1681 is_ct = vcl_session_is_ct (s);
1682 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1683 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1684 mq = wrk->app_event_queue;
1685 if (svm_fifo_is_full (tx_fifo))
1689 return VPPCOM_EWOULDBLOCK;
1691 while (svm_fifo_is_full (tx_fifo))
1693 svm_fifo_add_want_tx_ntf (tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
1694 if (vcl_session_is_closing (s))
1695 return vcl_session_closing_error (s);
1696 svm_msg_q_lock (mq);
1697 if (svm_msg_q_is_empty (mq))
1698 svm_msg_q_wait (mq);
1700 svm_msg_q_sub_w_lock (mq, &msg);
1701 e = svm_msg_q_msg_data (mq, &msg);
1702 svm_msg_q_unlock (mq);
1704 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1705 vcl_handle_mq_event (wrk, e);
1706 svm_msg_q_free_msg (mq, &msg);
1710 et = SESSION_IO_EVT_TX;
1711 if (is_flush && !is_ct)
1712 et = SESSION_IO_EVT_TX_FLUSH;
1715 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1716 s->vpp_evt_q, buf, n, et,
1717 0 /* do_evt */ , SVM_Q_WAIT);
1719 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1720 0 /* do_evt */ , SVM_Q_WAIT);
1722 if (svm_fifo_set_event (s->tx_fifo))
1723 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
1726 ASSERT (n_write > 0);
1728 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1729 s->vpp_handle, n_write);
1735 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1737 return vppcom_session_write_inline (session_handle, buf, n,
1742 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1744 return vppcom_session_write_inline (session_handle, buf, n,
1748 #define vcl_fifo_rx_evt_valid_or_break(_s) \
1749 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
1751 if (!vcl_session_is_ct (_s)) \
1753 svm_fifo_unset_event (_s->rx_fifo); \
1754 if (svm_fifo_is_empty (_s->rx_fifo)) \
1757 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1759 svm_fifo_unset_event (_s->ct_rx_fifo); \
1760 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1766 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1767 unsigned long n_bits, unsigned long *read_map,
1768 unsigned long *write_map,
1769 unsigned long *except_map, u32 * bits_set)
1771 session_disconnected_msg_t *disconnected_msg;
1772 session_connected_msg_t *connected_msg;
1773 vcl_session_t *session;
1776 switch (e->event_type)
1778 case SESSION_IO_EVT_RX:
1779 sid = e->session_index;
1780 session = vcl_session_get (wrk, sid);
1783 vcl_fifo_rx_evt_valid_or_break (session);
1784 if (sid < n_bits && read_map)
1786 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1790 case SESSION_IO_EVT_TX:
1791 sid = e->session_index;
1792 session = vcl_session_get (wrk, sid);
1795 if (sid < n_bits && write_map)
1797 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
1801 case SESSION_CTRL_EVT_ACCEPTED:
1802 session = vcl_session_accepted (wrk,
1803 (session_accepted_msg_t *) e->data);
1806 sid = session->session_index;
1807 if (sid < n_bits && read_map)
1809 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1813 case SESSION_CTRL_EVT_CONNECTED:
1814 connected_msg = (session_connected_msg_t *) e->data;
1815 vcl_session_connected_handler (wrk, connected_msg);
1817 case SESSION_CTRL_EVT_DISCONNECTED:
1818 disconnected_msg = (session_disconnected_msg_t *) e->data;
1819 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
1822 sid = session->session_index;
1823 if (sid < n_bits && except_map)
1825 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1829 case SESSION_CTRL_EVT_RESET:
1830 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1831 if (sid < n_bits && except_map)
1833 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1837 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1838 vcl_session_unlisten_reply_handler (wrk, e->data);
1840 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1841 vcl_session_worker_update_reply_handler (wrk, e->data);
1843 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1844 vcl_session_req_worker_update_handler (wrk, e->data);
1847 clib_warning ("unhandled: %u", e->event_type);
1853 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1854 unsigned long n_bits, unsigned long *read_map,
1855 unsigned long *write_map, unsigned long *except_map,
1856 double time_to_wait, u32 * bits_set)
1858 svm_msg_q_msg_t *msg;
1862 svm_msg_q_lock (mq);
1863 if (svm_msg_q_is_empty (mq))
1867 svm_msg_q_unlock (mq);
1873 svm_msg_q_unlock (mq);
1876 else if (time_to_wait < 0)
1878 svm_msg_q_wait (mq);
1882 if (svm_msg_q_timedwait (mq, time_to_wait))
1884 svm_msg_q_unlock (mq);
1889 vcl_mq_dequeue_batch (wrk, mq);
1890 svm_msg_q_unlock (mq);
1892 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1894 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1895 e = svm_msg_q_msg_data (mq, msg);
1896 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
1897 except_map, bits_set);
1898 svm_msg_q_free_msg (mq, msg);
1900 vec_reset_length (wrk->mq_msg_vector);
1901 vcl_handle_pending_wrk_updates (wrk);
1906 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
1907 vcl_si_set * read_map, vcl_si_set * write_map,
1908 vcl_si_set * except_map, double time_to_wait,
1911 double wait = 0, start = 0;
1915 wait = time_to_wait;
1916 start = clib_time_now (&wrk->clib_time);
1921 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1922 write_map, except_map, wait, bits_set);
1928 wait = wait - (clib_time_now (&wrk->clib_time) - start);
1936 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
1937 vcl_si_set * read_map, vcl_si_set * write_map,
1938 vcl_si_set * except_map, double time_to_wait,
1941 vcl_mq_evt_conn_t *mqc;
1942 int __clib_unused n_read;
1946 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1947 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1948 vec_len (wrk->mq_events), time_to_wait);
1949 for (i = 0; i < n_mq_evts; i++)
1951 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1952 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1953 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1954 except_map, 0, bits_set);
1957 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1961 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
1962 vcl_si_set * except_map, double time_to_wait)
1964 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1965 vcl_worker_t *wrk = vcl_worker_get_current ();
1966 vcl_session_t *session = 0;
1969 if (n_bits && read_map)
1971 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1972 clib_memcpy_fast (wrk->rd_bitmap, read_map,
1973 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1974 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1976 if (n_bits && write_map)
1978 clib_bitmap_validate (wrk->wr_bitmap, minbits);
1979 clib_memcpy_fast (wrk->wr_bitmap, write_map,
1980 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1981 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1983 if (n_bits && except_map)
1985 clib_bitmap_validate (wrk->ex_bitmap, minbits);
1986 clib_memcpy_fast (wrk->ex_bitmap, except_map,
1987 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
1988 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
1998 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
1999 if (!(session = vcl_session_get (wrk, sid)))
2001 if (except_map && sid < minbits)
2002 clib_bitmap_set_no_check (except_map, sid, 1);
2006 rv = svm_fifo_is_full (session->tx_fifo);
2009 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2013 svm_fifo_add_want_tx_ntf (session->tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
2020 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2021 if (!(session = vcl_session_get (wrk, sid)))
2023 if (except_map && sid < minbits)
2024 clib_bitmap_set_no_check (except_map, sid, 1);
2028 rv = vcl_session_read_ready (session);
2031 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2039 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2041 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2042 read_map, write_map, except_map, &bits_set);
2044 vec_reset_length (wrk->unhandled_evts_vector);
2046 if (vcm->cfg.use_mq_eventfd)
2047 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2048 time_to_wait, &bits_set);
2050 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2051 time_to_wait, &bits_set);
2057 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
2059 vcl_session_t *session;
2060 vppcom_epoll_t *vep;
2063 if (VPPCOM_DEBUG <= 2)
2066 session = vcl_session_get (wrk, vep_idx);
2067 if (PREDICT_FALSE (!session))
2069 VDBG (0, "ERROR: Invalid vep_idx (%u)!", vep_idx);
2072 if (PREDICT_FALSE (!session->is_vep))
2074 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_idx);
2077 vep = &session->vep;
2078 VDBG (0, "vep_idx (%u): Dumping epoll chain\n"
2081 " is_vep_session = %u\n"
2082 " next_sid = 0x%x (%u)\n"
2083 "}\n", vep_idx, session->is_vep, session->is_vep_session,
2084 vep->next_sh, vep->next_sh);
2086 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
2088 session = vcl_session_get (wrk, sid);
2089 if (PREDICT_FALSE (!session))
2091 VDBG (0, "ERROR: Invalid sid (%u)!", sid);
2094 if (PREDICT_FALSE (session->is_vep))
2096 VDBG (0, "ERROR: sid (%u) is a vep!", vep_idx);
2098 else if (PREDICT_FALSE (!session->is_vep_session))
2100 VDBG (0, "ERROR: session (%u) is not a vep session!", sid);
2103 vep = &session->vep;
2104 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
2105 VDBG (0, "ERROR: session (%u) vep_idx (%u) != vep_idx (%u)!",
2106 sid, session->vep.vep_sh, vep_idx);
2107 if (session->is_vep_session)
2109 VDBG (0, "vep_idx[%u]: sid 0x%x (%u)\n"
2111 " next_sid = 0x%x (%u)\n"
2112 " prev_sid = 0x%x (%u)\n"
2113 " vep_idx = 0x%x (%u)\n"
2114 " ev.events = 0x%x\n"
2115 " ev.data.u64 = 0x%llx\n"
2118 vep_idx, sid, sid, vep->next_sh, vep->next_sh, vep->prev_sh,
2119 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2120 vep->ev.data.u64, vep->et_mask);
2125 VDBG (0, "vep_idx (%u): Dump complete!\n", vep_idx);
2129 vppcom_epoll_create (void)
2131 vcl_worker_t *wrk = vcl_worker_get_current ();
2132 vcl_session_t *vep_session;
2134 vep_session = vcl_session_alloc (wrk);
2136 vep_session->is_vep = 1;
2137 vep_session->vep.vep_sh = ~0;
2138 vep_session->vep.next_sh = ~0;
2139 vep_session->vep.prev_sh = ~0;
2140 vep_session->vpp_handle = ~0;
2142 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2143 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2145 return vcl_session_handle (vep_session);
2149 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2150 struct epoll_event *event)
2152 vcl_worker_t *wrk = vcl_worker_get_current ();
2153 vcl_session_t *vep_session;
2154 vcl_session_t *session;
2157 if (vep_handle == session_handle)
2159 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2160 return VPPCOM_EINVAL;
2163 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2164 if (PREDICT_FALSE (!vep_session))
2166 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2167 return VPPCOM_EBADFD;
2169 if (PREDICT_FALSE (!vep_session->is_vep))
2171 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2172 return VPPCOM_EINVAL;
2175 ASSERT (vep_session->vep.vep_sh == ~0);
2176 ASSERT (vep_session->vep.prev_sh == ~0);
2178 session = vcl_session_get_w_handle (wrk, session_handle);
2179 if (PREDICT_FALSE (!session))
2181 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2182 return VPPCOM_EBADFD;
2184 if (PREDICT_FALSE (session->is_vep))
2186 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2187 return VPPCOM_EINVAL;
2193 if (PREDICT_FALSE (!event))
2195 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2196 return VPPCOM_EINVAL;
2198 if (vep_session->vep.next_sh != ~0)
2200 vcl_session_t *next_session;
2201 next_session = vcl_session_get_w_handle (wrk,
2202 vep_session->vep.next_sh);
2203 if (PREDICT_FALSE (!next_session))
2205 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2206 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2207 return VPPCOM_EBADFD;
2209 ASSERT (next_session->vep.prev_sh == vep_handle);
2210 next_session->vep.prev_sh = session_handle;
2212 session->vep.next_sh = vep_session->vep.next_sh;
2213 session->vep.prev_sh = vep_handle;
2214 session->vep.vep_sh = vep_handle;
2215 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2216 session->vep.ev = *event;
2217 session->is_vep = 0;
2218 session->is_vep_session = 1;
2219 vep_session->vep.next_sh = session_handle;
2221 if (session->tx_fifo)
2222 svm_fifo_add_want_tx_ntf (session->tx_fifo,
2223 SVM_FIFO_WANT_TX_NOTIF_IF_FULL);
2225 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2226 vep_handle, session_handle, event->events, event->data.u64);
2227 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2231 if (PREDICT_FALSE (!event))
2233 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2237 else if (PREDICT_FALSE (!session->is_vep_session))
2239 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2243 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2245 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2246 session_handle, session->vep.vep_sh, vep_handle);
2250 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2251 session->vep.ev = *event;
2252 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2253 vep_handle, session_handle, event->events, event->data.u64);
2257 if (PREDICT_FALSE (!session->is_vep_session))
2259 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2263 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2265 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2266 session_handle, session->vep.vep_sh, vep_handle);
2271 if (session->vep.prev_sh == vep_handle)
2272 vep_session->vep.next_sh = session->vep.next_sh;
2275 vcl_session_t *prev_session;
2276 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2277 if (PREDICT_FALSE (!prev_session))
2279 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2280 session->vep.prev_sh, session_handle);
2281 return VPPCOM_EBADFD;
2283 ASSERT (prev_session->vep.next_sh == session_handle);
2284 prev_session->vep.next_sh = session->vep.next_sh;
2286 if (session->vep.next_sh != ~0)
2288 vcl_session_t *next_session;
2289 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2290 if (PREDICT_FALSE (!next_session))
2292 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2293 session->vep.next_sh, session_handle);
2294 return VPPCOM_EBADFD;
2296 ASSERT (next_session->vep.prev_sh == session_handle);
2297 next_session->vep.prev_sh = session->vep.prev_sh;
2300 memset (&session->vep, 0, sizeof (session->vep));
2301 session->vep.next_sh = ~0;
2302 session->vep.prev_sh = ~0;
2303 session->vep.vep_sh = ~0;
2304 session->is_vep_session = 0;
2306 if (session->tx_fifo)
2307 svm_fifo_del_want_tx_ntf (session->tx_fifo, SVM_FIFO_NO_TX_NOTIF);
2309 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2311 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2315 VDBG (0, "Invalid operation (%d)!", op);
2319 vep_verify_epoll_chain (wrk, vep_handle);
2326 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2327 struct epoll_event *events, u32 * num_ev)
2329 session_disconnected_msg_t *disconnected_msg;
2330 session_connected_msg_t *connected_msg;
2331 u32 sid = ~0, session_events;
2332 u64 session_evt_data = ~0;
2333 vcl_session_t *session;
2336 switch (e->event_type)
2338 case SESSION_IO_EVT_RX:
2339 sid = e->session_index;
2340 if (!(session = vcl_session_get (wrk, sid)))
2342 vcl_fifo_rx_evt_valid_or_break (session);
2343 session_events = session->vep.ev.events;
2344 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2347 events[*num_ev].events |= EPOLLIN;
2348 session_evt_data = session->vep.ev.data.u64;
2349 session->has_rx_evt = 1;
2351 case SESSION_IO_EVT_TX:
2352 sid = e->session_index;
2353 if (!(session = vcl_session_get (wrk, sid)))
2355 session_events = session->vep.ev.events;
2356 if (!(EPOLLOUT & session_events))
2359 events[*num_ev].events |= EPOLLOUT;
2360 session_evt_data = session->vep.ev.data.u64;
2361 svm_fifo_reset_tx_ntf (session->tx_fifo);
2363 case SESSION_CTRL_EVT_ACCEPTED:
2364 session = vcl_session_accepted (wrk,
2365 (session_accepted_msg_t *) e->data);
2369 session_events = session->vep.ev.events;
2370 if (!(EPOLLIN & session_events))
2374 events[*num_ev].events |= EPOLLIN;
2375 session_evt_data = session->vep.ev.data.u64;
2377 case SESSION_CTRL_EVT_CONNECTED:
2378 connected_msg = (session_connected_msg_t *) e->data;
2379 vcl_session_connected_handler (wrk, connected_msg);
2380 /* Generate EPOLLOUT because there's no connected event */
2381 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2382 if (!(session = vcl_session_get (wrk, sid)))
2384 session_events = session->vep.ev.events;
2385 if (!(EPOLLOUT & session_events))
2388 events[*num_ev].events |= EPOLLOUT;
2389 session_evt_data = session->vep.ev.data.u64;
2391 case SESSION_CTRL_EVT_DISCONNECTED:
2392 disconnected_msg = (session_disconnected_msg_t *) e->data;
2393 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2396 session_events = session->vep.ev.events;
2397 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2400 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2401 session_evt_data = session->vep.ev.data.u64;
2403 case SESSION_CTRL_EVT_RESET:
2404 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2405 if (!(session = vcl_session_get (wrk, sid)))
2407 session_events = session->vep.ev.events;
2408 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2411 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2412 session_evt_data = session->vep.ev.data.u64;
2414 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2415 vcl_session_unlisten_reply_handler (wrk, e->data);
2417 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2418 vcl_session_req_worker_update_handler (wrk, e->data);
2420 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2421 vcl_session_worker_update_reply_handler (wrk, e->data);
2424 VDBG (0, "unhandled: %u", e->event_type);
2430 events[*num_ev].data.u64 = session_evt_data;
2431 if (EPOLLONESHOT & session_events)
2433 session = vcl_session_get (wrk, sid);
2434 session->vep.ev.events = 0;
2441 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2442 struct epoll_event *events, u32 maxevents,
2443 double wait_for_time, u32 * num_ev)
2445 svm_msg_q_msg_t *msg;
2449 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2450 goto handle_dequeued;
2452 svm_msg_q_lock (mq);
2453 if (svm_msg_q_is_empty (mq))
2457 svm_msg_q_unlock (mq);
2460 else if (wait_for_time < 0)
2462 svm_msg_q_wait (mq);
2466 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2468 svm_msg_q_unlock (mq);
2473 vcl_mq_dequeue_batch (wrk, mq);
2474 svm_msg_q_unlock (mq);
2477 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2479 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2480 e = svm_msg_q_msg_data (mq, msg);
2481 if (*num_ev < maxevents)
2482 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2484 vec_add1 (wrk->unhandled_evts_vector, *e);
2485 svm_msg_q_free_msg (mq, msg);
2487 vec_reset_length (wrk->mq_msg_vector);
2488 vcl_handle_pending_wrk_updates (wrk);
2493 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2494 int maxevents, u32 n_evts, double wait_for_time)
2496 double wait = 0, start = 0;
2500 wait = wait_for_time;
2501 start = clib_time_now (&wrk->clib_time);
2506 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2513 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2521 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2522 int maxevents, u32 n_evts, double wait_for_time)
2524 vcl_mq_evt_conn_t *mqc;
2525 int __clib_unused n_read;
2529 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2531 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2532 vec_len (wrk->mq_events), wait_for_time);
2533 for (i = 0; i < n_mq_evts; i++)
2535 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2536 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2537 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2539 if (!n_evts && n_mq_evts > 0)
2542 return (int) n_evts;
2546 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2547 int maxevents, double wait_for_time)
2549 vcl_worker_t *wrk = vcl_worker_get_current ();
2550 vcl_session_t *vep_session;
2554 if (PREDICT_FALSE (maxevents <= 0))
2556 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2557 return VPPCOM_EINVAL;
2560 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2562 return VPPCOM_EBADFD;
2564 if (PREDICT_FALSE (!vep_session->is_vep))
2566 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2567 return VPPCOM_EINVAL;
2570 memset (events, 0, sizeof (*events) * maxevents);
2572 if (vec_len (wrk->unhandled_evts_vector))
2574 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2576 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2578 if (n_evts == maxevents)
2584 vec_delete (wrk->unhandled_evts_vector, i, 0);
2587 if (vcm->cfg.use_mq_eventfd)
2588 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2591 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2596 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2597 void *buffer, uint32_t * buflen)
2599 vcl_worker_t *wrk = vcl_worker_get_current ();
2600 vcl_session_t *session;
2602 u32 *flags = buffer, tmp_flags = 0;
2603 vppcom_endpt_t *ep = buffer;
2605 session = vcl_session_get_w_handle (wrk, session_handle);
2607 return VPPCOM_EBADFD;
2611 case VPPCOM_ATTR_GET_NREAD:
2612 rv = vcl_session_read_ready (session);
2613 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
2617 case VPPCOM_ATTR_GET_NWRITE:
2618 rv = vcl_session_write_ready (session);
2619 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
2623 case VPPCOM_ATTR_GET_FLAGS:
2624 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2626 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2627 VCL_SESS_ATTR_NONBLOCK));
2628 *buflen = sizeof (*flags);
2629 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
2630 "is_nonblocking = %u", session_handle, *flags,
2631 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2637 case VPPCOM_ATTR_SET_FLAGS:
2638 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2640 if (*flags & O_NONBLOCK)
2641 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2643 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2645 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
2646 " is_nonblocking = %u", session_handle, *flags,
2647 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2653 case VPPCOM_ATTR_GET_PEER_ADDR:
2654 if (PREDICT_TRUE (buffer && buflen &&
2655 (*buflen >= sizeof (*ep)) && ep->ip))
2657 ep->is_ip4 = session->transport.is_ip4;
2658 ep->port = session->transport.rmt_port;
2659 if (session->transport.is_ip4)
2660 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2661 sizeof (ip4_address_t));
2663 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2664 sizeof (ip6_address_t));
2665 *buflen = sizeof (*ep);
2666 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
2667 "addr = %U, port %u", session_handle, ep->is_ip4,
2668 format_ip46_address, &session->transport.rmt_ip,
2669 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2670 clib_net_to_host_u16 (ep->port));
2676 case VPPCOM_ATTR_GET_LCL_ADDR:
2677 if (PREDICT_TRUE (buffer && buflen &&
2678 (*buflen >= sizeof (*ep)) && ep->ip))
2680 ep->is_ip4 = session->transport.is_ip4;
2681 ep->port = session->transport.lcl_port;
2682 if (session->transport.is_ip4)
2683 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2684 sizeof (ip4_address_t));
2686 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2687 sizeof (ip6_address_t));
2688 *buflen = sizeof (*ep);
2689 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2690 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2691 &session->transport.lcl_ip,
2692 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2693 clib_net_to_host_u16 (ep->port));
2699 case VPPCOM_ATTR_GET_LIBC_EPFD:
2700 rv = session->libc_epfd;
2701 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
2704 case VPPCOM_ATTR_SET_LIBC_EPFD:
2705 if (PREDICT_TRUE (buffer && buflen &&
2706 (*buflen == sizeof (session->libc_epfd))))
2708 session->libc_epfd = *(int *) buffer;
2709 *buflen = sizeof (session->libc_epfd);
2711 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
2712 session->libc_epfd, *buflen);
2718 case VPPCOM_ATTR_GET_PROTOCOL:
2719 if (buffer && buflen && (*buflen >= sizeof (int)))
2721 *(int *) buffer = session->session_type;
2722 *buflen = sizeof (int);
2724 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2725 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
2731 case VPPCOM_ATTR_GET_LISTEN:
2732 if (buffer && buflen && (*buflen >= sizeof (int)))
2734 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2735 VCL_SESS_ATTR_LISTEN);
2736 *buflen = sizeof (int);
2738 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
2745 case VPPCOM_ATTR_GET_ERROR:
2746 if (buffer && buflen && (*buflen >= sizeof (int)))
2748 *(int *) buffer = 0;
2749 *buflen = sizeof (int);
2751 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2752 *(int *) buffer, *buflen);
2758 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2759 if (buffer && buflen && (*buflen >= sizeof (u32)))
2763 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2764 session->tx_fifo ? session->tx_fifo->nitems :
2765 vcm->cfg.tx_fifo_size);
2766 *buflen = sizeof (u32);
2768 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
2769 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
2776 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2777 if (buffer && buflen && (*buflen == sizeof (u32)))
2780 session->sndbuf_size = *(u32 *) buffer;
2781 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
2782 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
2789 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2790 if (buffer && buflen && (*buflen >= sizeof (u32)))
2794 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2795 session->rx_fifo ? session->rx_fifo->nitems :
2796 vcm->cfg.rx_fifo_size);
2797 *buflen = sizeof (u32);
2799 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
2800 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
2806 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2807 if (buffer && buflen && (*buflen == sizeof (u32)))
2810 session->rcvbuf_size = *(u32 *) buffer;
2811 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
2812 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
2819 case VPPCOM_ATTR_GET_REUSEADDR:
2820 if (buffer && buflen && (*buflen >= sizeof (int)))
2823 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2824 VCL_SESS_ATTR_REUSEADDR);
2825 *buflen = sizeof (int);
2827 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
2828 *(int *) buffer, *buflen);
2834 case VPPCOM_ATTR_SET_REUSEADDR:
2835 if (buffer && buflen && (*buflen == sizeof (int)) &&
2836 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2839 if (*(int *) buffer)
2840 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2842 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2844 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
2845 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
2852 case VPPCOM_ATTR_GET_REUSEPORT:
2853 if (buffer && buflen && (*buflen >= sizeof (int)))
2856 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2857 VCL_SESS_ATTR_REUSEPORT);
2858 *buflen = sizeof (int);
2860 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
2861 *(int *) buffer, *buflen);
2867 case VPPCOM_ATTR_SET_REUSEPORT:
2868 if (buffer && buflen && (*buflen == sizeof (int)) &&
2869 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2872 if (*(int *) buffer)
2873 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2875 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2877 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
2878 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
2885 case VPPCOM_ATTR_GET_BROADCAST:
2886 if (buffer && buflen && (*buflen >= sizeof (int)))
2889 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2890 VCL_SESS_ATTR_BROADCAST);
2891 *buflen = sizeof (int);
2893 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
2894 *(int *) buffer, *buflen);
2900 case VPPCOM_ATTR_SET_BROADCAST:
2901 if (buffer && buflen && (*buflen == sizeof (int)))
2904 if (*(int *) buffer)
2905 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2907 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2909 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
2910 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
2917 case VPPCOM_ATTR_GET_V6ONLY:
2918 if (buffer && buflen && (*buflen >= sizeof (int)))
2921 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2922 VCL_SESS_ATTR_V6ONLY);
2923 *buflen = sizeof (int);
2925 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
2926 *(int *) buffer, *buflen);
2932 case VPPCOM_ATTR_SET_V6ONLY:
2933 if (buffer && buflen && (*buflen == sizeof (int)))
2936 if (*(int *) buffer)
2937 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2939 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2941 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
2942 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
2949 case VPPCOM_ATTR_GET_KEEPALIVE:
2950 if (buffer && buflen && (*buflen >= sizeof (int)))
2953 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2954 VCL_SESS_ATTR_KEEPALIVE);
2955 *buflen = sizeof (int);
2957 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
2958 *(int *) buffer, *buflen);
2964 case VPPCOM_ATTR_SET_KEEPALIVE:
2965 if (buffer && buflen && (*buflen == sizeof (int)))
2968 if (*(int *) buffer)
2969 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2971 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2973 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
2974 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
2981 case VPPCOM_ATTR_GET_TCP_NODELAY:
2982 if (buffer && buflen && (*buflen >= sizeof (int)))
2985 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2986 VCL_SESS_ATTR_TCP_NODELAY);
2987 *buflen = sizeof (int);
2989 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
2990 *(int *) buffer, *buflen);
2996 case VPPCOM_ATTR_SET_TCP_NODELAY:
2997 if (buffer && buflen && (*buflen == sizeof (int)))
3000 if (*(int *) buffer)
3001 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3003 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3005 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3006 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3013 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3014 if (buffer && buflen && (*buflen >= sizeof (int)))
3017 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3018 VCL_SESS_ATTR_TCP_KEEPIDLE);
3019 *buflen = sizeof (int);
3021 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3022 *(int *) buffer, *buflen);
3028 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3029 if (buffer && buflen && (*buflen == sizeof (int)))
3032 if (*(int *) buffer)
3033 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3035 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3037 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3038 VCL_SESS_ATTR_TEST (session->attr,
3039 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3045 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3046 if (buffer && buflen && (*buflen >= sizeof (int)))
3049 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3050 VCL_SESS_ATTR_TCP_KEEPINTVL);
3051 *buflen = sizeof (int);
3053 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3054 *(int *) buffer, *buflen);
3060 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3061 if (buffer && buflen && (*buflen == sizeof (int)))
3064 if (*(int *) buffer)
3065 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3067 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3069 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3070 VCL_SESS_ATTR_TEST (session->attr,
3071 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3077 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3078 if (buffer && buflen && (*buflen >= sizeof (u32)))
3081 *(u32 *) buffer = session->user_mss;
3082 *buflen = sizeof (int);
3084 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3085 *(int *) buffer, *buflen);
3091 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3092 if (buffer && buflen && (*buflen == sizeof (u32)))
3095 session->user_mss = *(u32 *) buffer;
3097 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3098 session->user_mss, *buflen);
3104 case VPPCOM_ATTR_SET_SHUT:
3105 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3106 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3107 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3108 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3111 case VPPCOM_ATTR_GET_SHUT:
3112 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3114 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3117 *(int *) buffer = SHUT_RD;
3118 else if (tmp_flags == 2)
3119 *(int *) buffer = SHUT_WR;
3120 else if (tmp_flags == 3)
3121 *(int *) buffer = SHUT_RDWR;
3122 *buflen = sizeof (int);
3133 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3134 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3136 vcl_worker_t *wrk = vcl_worker_get_current ();
3138 vcl_session_t *session = 0;
3142 session = vcl_session_get_w_handle (wrk, session_handle);
3143 if (PREDICT_FALSE (!session))
3145 VDBG (0, "sh 0x%llx is closed!", session_handle);
3146 return VPPCOM_EBADFD;
3148 ep->is_ip4 = session->transport.is_ip4;
3149 ep->port = session->transport.rmt_port;
3153 rv = vppcom_session_read (session_handle, buffer, buflen);
3154 else if (flags & MSG_PEEK)
3155 rv = vppcom_session_peek (session_handle, buffer, buflen);
3158 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3159 return VPPCOM_EAFNOSUPPORT;
3164 if (session->transport.is_ip4)
3165 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3166 sizeof (ip4_address_t));
3168 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3169 sizeof (ip6_address_t));
3176 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3177 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3180 return VPPCOM_EINVAL;
3185 return VPPCOM_EINVAL;
3190 // TBD check the flags and do the right thing
3191 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3194 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3198 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3200 vcl_worker_t *wrk = vcl_worker_get_current ();
3201 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3202 u32 i, keep_trying = 1;
3203 svm_msg_q_msg_t msg;
3207 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3210 return VPPCOM_EFAULT;
3214 vcl_session_t *session;
3216 /* Dequeue all events and drop all unhandled io events */
3217 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3219 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3220 vcl_handle_mq_event (wrk, e);
3221 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3223 vec_reset_length (wrk->unhandled_evts_vector);
3225 for (i = 0; i < n_sids; i++)
3227 session = vcl_session_get (wrk, vp[i].sh);
3230 vp[i].revents = POLLHUP;
3237 if (POLLIN & vp[i].events)
3239 rv = vcl_session_read_ready (session);
3242 vp[i].revents |= POLLIN;
3249 case VPPCOM_ECONNRESET:
3250 vp[i].revents = POLLHUP;
3254 vp[i].revents = POLLERR;
3261 if (POLLOUT & vp[i].events)
3263 rv = vcl_session_write_ready (session);
3266 vp[i].revents |= POLLOUT;
3273 case VPPCOM_ECONNRESET:
3274 vp[i].revents = POLLHUP;
3278 vp[i].revents = POLLERR;
3285 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3287 vp[i].revents = POLLNVAL;
3291 if (wait_for_time != -1)
3292 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3294 while ((num_ev == 0) && keep_trying);
3300 vppcom_mq_epoll_fd (void)
3302 vcl_worker_t *wrk = vcl_worker_get_current ();
3303 return wrk->mqs_epfd;
3307 vppcom_session_index (vcl_session_handle_t session_handle)
3309 return session_handle & 0xFFFFFF;
3313 vppcom_session_worker (vcl_session_handle_t session_handle)
3315 return session_handle >> 24;
3319 vppcom_worker_register (void)
3321 if (!vcl_worker_alloc_and_init ())
3322 return VPPCOM_EEXIST;
3324 if (vcl_worker_set_bapi ())
3325 return VPPCOM_EEXIST;
3327 if (vcl_worker_register_with_vpp ())
3328 return VPPCOM_EEXIST;
3334 vppcom_worker_index (void)
3336 return vcl_get_worker_index ();
3340 vppcom_worker_mqs_epfd (void)
3342 vcl_worker_t *wrk = vcl_worker_get_current ();
3343 if (!vcm->cfg.use_mq_eventfd)
3345 return wrk->mqs_epfd;
3349 * fd.io coding-style-patch-verification: ON
3352 * eval: (c-set-style "gnu")