2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_wait_for_segment (u64 segment_handle)
28 vcl_worker_t *wrk = vcl_worker_get_current ();
29 u32 wait_for_seconds = 10, segment_index;
32 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
35 timeout = clib_time_now (&wrk->clib_time) + wait_for_seconds;
36 while (clib_time_now (&wrk->clib_time) < timeout)
38 segment_index = vcl_segment_table_lookup (segment_handle);
39 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
47 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq)
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->rmt.port;
313 session->transport.is_ip4 = mp->rmt.is_ip4;
314 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.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->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
326 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
327 clib_net_to_host_u16 (mp->rmt.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->lcl.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 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_cons (rx_fifo))
1503 svm_fifo_unset_event (s->rx_fifo);
1504 return VPPCOM_EWOULDBLOCK;
1506 while (svm_fifo_is_empty_cons (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_cons (rx_fifo))
1531 svm_fifo_unset_event (s->rx_fifo);
1533 /* Cut-through sessions might request tx notifications on rx fifos */
1534 if (PREDICT_FALSE (rx_fifo->want_tx_ntf))
1536 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1537 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1538 svm_fifo_reset_tx_ntf (s->rx_fifo);
1541 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1542 s->vpp_handle, n_read, rx_fifo);
1548 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1550 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1554 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1556 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1560 vppcom_session_read_segments (uint32_t session_handle,
1561 vppcom_data_segments_t ds)
1563 vcl_worker_t *wrk = vcl_worker_get_current ();
1564 int n_read = 0, is_nonblocking;
1565 vcl_session_t *s = 0;
1566 svm_fifo_t *rx_fifo;
1567 svm_msg_q_msg_t msg;
1572 s = vcl_session_get_w_handle (wrk, session_handle);
1573 if (PREDICT_FALSE (!s || s->is_vep))
1574 return VPPCOM_EBADFD;
1576 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1577 return vcl_session_closed_error (s);
1579 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1580 is_ct = vcl_session_is_ct (s);
1581 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1582 rx_fifo = s->rx_fifo;
1586 svm_fifo_unset_event (s->rx_fifo);
1588 if (svm_fifo_is_empty_cons (rx_fifo))
1592 svm_fifo_unset_event (rx_fifo);
1593 return VPPCOM_EWOULDBLOCK;
1595 while (svm_fifo_is_empty_cons (rx_fifo))
1597 if (vcl_session_is_closing (s))
1598 return vcl_session_closing_error (s);
1600 svm_fifo_unset_event (rx_fifo);
1601 svm_msg_q_lock (mq);
1602 if (svm_msg_q_is_empty (mq))
1603 svm_msg_q_wait (mq);
1605 svm_msg_q_sub_w_lock (mq, &msg);
1606 e = svm_msg_q_msg_data (mq, &msg);
1607 svm_msg_q_unlock (mq);
1608 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1609 vcl_handle_mq_event (wrk, e);
1610 svm_msg_q_free_msg (mq, &msg);
1614 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1615 svm_fifo_unset_event (rx_fifo);
1621 vppcom_session_free_segments (uint32_t session_handle,
1622 vppcom_data_segments_t ds)
1624 vcl_worker_t *wrk = vcl_worker_get_current ();
1627 s = vcl_session_get_w_handle (wrk, session_handle);
1628 if (PREDICT_FALSE (!s || s->is_vep))
1631 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1635 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1637 u32 first_copy = clib_min (ds[0].len, max_bytes);
1638 clib_memcpy_fast (buf, ds[0].data, first_copy);
1639 if (first_copy < max_bytes)
1641 clib_memcpy_fast (buf + first_copy, ds[1].data,
1642 clib_min (ds[1].len, max_bytes - first_copy));
1648 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1650 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1654 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1657 vcl_worker_t *wrk = vcl_worker_get_current ();
1658 int n_write, is_nonblocking;
1659 vcl_session_t *s = 0;
1660 session_evt_type_t et;
1661 svm_msg_q_msg_t msg;
1662 svm_fifo_t *tx_fifo;
1667 if (PREDICT_FALSE (!buf))
1668 return VPPCOM_EINVAL;
1670 s = vcl_session_get_w_handle (wrk, session_handle);
1671 if (PREDICT_FALSE (!s))
1672 return VPPCOM_EBADFD;
1674 if (PREDICT_FALSE (s->is_vep))
1676 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1677 " session!", s->session_index, s->vpp_handle);
1678 return VPPCOM_EBADFD;
1681 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1683 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1684 s->session_index, s->vpp_handle, s->session_state,
1685 vppcom_session_state_str (s->session_state));
1686 return vcl_session_closed_error (s);;
1689 is_ct = vcl_session_is_ct (s);
1690 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1691 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1693 mq = wrk->app_event_queue;
1694 if (svm_fifo_is_full_prod (tx_fifo))
1698 return VPPCOM_EWOULDBLOCK;
1700 while (svm_fifo_is_full_prod (tx_fifo))
1702 svm_fifo_add_want_tx_ntf (tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
1703 if (vcl_session_is_closing (s))
1704 return vcl_session_closing_error (s);
1705 svm_msg_q_lock (mq);
1706 if (svm_msg_q_is_empty (mq))
1707 svm_msg_q_wait (mq);
1709 svm_msg_q_sub_w_lock (mq, &msg);
1710 e = svm_msg_q_msg_data (mq, &msg);
1711 svm_msg_q_unlock (mq);
1713 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1714 vcl_handle_mq_event (wrk, e);
1715 svm_msg_q_free_msg (mq, &msg);
1719 et = SESSION_IO_EVT_TX;
1720 if (is_flush && !is_ct)
1721 et = SESSION_IO_EVT_TX_FLUSH;
1724 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1725 s->vpp_evt_q, buf, n, et,
1726 0 /* do_evt */ , SVM_Q_WAIT);
1728 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1729 0 /* do_evt */ , SVM_Q_WAIT);
1731 if (svm_fifo_set_event (s->tx_fifo))
1732 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
1735 ASSERT (n_write > 0);
1737 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1738 s->vpp_handle, n_write);
1744 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1746 return vppcom_session_write_inline (session_handle, buf, n,
1751 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1753 return vppcom_session_write_inline (session_handle, buf, n,
1757 #define vcl_fifo_rx_evt_valid_or_break(_s) \
1758 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
1760 if (!vcl_session_is_ct (_s)) \
1762 svm_fifo_unset_event (_s->rx_fifo); \
1763 if (svm_fifo_is_empty (_s->rx_fifo)) \
1766 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1768 svm_fifo_unset_event (_s->ct_rx_fifo); \
1769 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1775 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1776 unsigned long n_bits, unsigned long *read_map,
1777 unsigned long *write_map,
1778 unsigned long *except_map, u32 * bits_set)
1780 session_disconnected_msg_t *disconnected_msg;
1781 session_connected_msg_t *connected_msg;
1782 vcl_session_t *session;
1785 switch (e->event_type)
1787 case SESSION_IO_EVT_RX:
1788 sid = e->session_index;
1789 session = vcl_session_get (wrk, sid);
1792 vcl_fifo_rx_evt_valid_or_break (session);
1793 if (sid < n_bits && read_map)
1795 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1799 case SESSION_IO_EVT_TX:
1800 sid = e->session_index;
1801 session = vcl_session_get (wrk, sid);
1804 if (sid < n_bits && write_map)
1806 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
1810 case SESSION_CTRL_EVT_ACCEPTED:
1811 session = vcl_session_accepted (wrk,
1812 (session_accepted_msg_t *) e->data);
1815 sid = session->session_index;
1816 if (sid < n_bits && read_map)
1818 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1822 case SESSION_CTRL_EVT_CONNECTED:
1823 connected_msg = (session_connected_msg_t *) e->data;
1824 vcl_session_connected_handler (wrk, connected_msg);
1826 case SESSION_CTRL_EVT_DISCONNECTED:
1827 disconnected_msg = (session_disconnected_msg_t *) e->data;
1828 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
1831 sid = session->session_index;
1832 if (sid < n_bits && except_map)
1834 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1838 case SESSION_CTRL_EVT_RESET:
1839 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1840 if (sid < n_bits && except_map)
1842 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1846 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1847 vcl_session_unlisten_reply_handler (wrk, e->data);
1849 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1850 vcl_session_worker_update_reply_handler (wrk, e->data);
1852 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1853 vcl_session_req_worker_update_handler (wrk, e->data);
1856 clib_warning ("unhandled: %u", e->event_type);
1862 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1863 unsigned long n_bits, unsigned long *read_map,
1864 unsigned long *write_map, unsigned long *except_map,
1865 double time_to_wait, u32 * bits_set)
1867 svm_msg_q_msg_t *msg;
1871 svm_msg_q_lock (mq);
1872 if (svm_msg_q_is_empty (mq))
1876 svm_msg_q_unlock (mq);
1882 svm_msg_q_unlock (mq);
1885 else if (time_to_wait < 0)
1887 svm_msg_q_wait (mq);
1891 if (svm_msg_q_timedwait (mq, time_to_wait))
1893 svm_msg_q_unlock (mq);
1898 vcl_mq_dequeue_batch (wrk, mq);
1899 svm_msg_q_unlock (mq);
1901 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1903 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1904 e = svm_msg_q_msg_data (mq, msg);
1905 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
1906 except_map, bits_set);
1907 svm_msg_q_free_msg (mq, msg);
1909 vec_reset_length (wrk->mq_msg_vector);
1910 vcl_handle_pending_wrk_updates (wrk);
1915 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
1916 vcl_si_set * read_map, vcl_si_set * write_map,
1917 vcl_si_set * except_map, double time_to_wait,
1920 double wait = 0, start = 0;
1924 wait = time_to_wait;
1925 start = clib_time_now (&wrk->clib_time);
1930 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1931 write_map, except_map, wait, bits_set);
1937 wait = wait - (clib_time_now (&wrk->clib_time) - start);
1945 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
1946 vcl_si_set * read_map, vcl_si_set * write_map,
1947 vcl_si_set * except_map, double time_to_wait,
1950 vcl_mq_evt_conn_t *mqc;
1951 int __clib_unused n_read;
1955 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1956 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1957 vec_len (wrk->mq_events), time_to_wait);
1958 for (i = 0; i < n_mq_evts; i++)
1960 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1961 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1962 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1963 except_map, 0, bits_set);
1966 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1970 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
1971 vcl_si_set * except_map, double time_to_wait)
1973 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1974 vcl_worker_t *wrk = vcl_worker_get_current ();
1975 vcl_session_t *session = 0;
1978 if (n_bits && read_map)
1980 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1981 clib_memcpy_fast (wrk->rd_bitmap, read_map,
1982 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1983 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1985 if (n_bits && write_map)
1987 clib_bitmap_validate (wrk->wr_bitmap, minbits);
1988 clib_memcpy_fast (wrk->wr_bitmap, write_map,
1989 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1990 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1992 if (n_bits && except_map)
1994 clib_bitmap_validate (wrk->ex_bitmap, minbits);
1995 clib_memcpy_fast (wrk->ex_bitmap, except_map,
1996 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
1997 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2007 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2008 if (!(session = vcl_session_get (wrk, sid)))
2010 if (except_map && sid < minbits)
2011 clib_bitmap_set_no_check (except_map, sid, 1);
2015 rv = svm_fifo_is_full_prod (session->tx_fifo);
2018 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2022 svm_fifo_add_want_tx_ntf (session->tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
2029 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2030 if (!(session = vcl_session_get (wrk, sid)))
2032 if (except_map && sid < minbits)
2033 clib_bitmap_set_no_check (except_map, sid, 1);
2037 rv = vcl_session_read_ready (session);
2040 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2048 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2050 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2051 read_map, write_map, except_map, &bits_set);
2053 vec_reset_length (wrk->unhandled_evts_vector);
2055 if (vcm->cfg.use_mq_eventfd)
2056 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2057 time_to_wait, &bits_set);
2059 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2060 time_to_wait, &bits_set);
2066 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
2068 vcl_session_t *session;
2069 vppcom_epoll_t *vep;
2072 if (VPPCOM_DEBUG <= 2)
2075 session = vcl_session_get (wrk, vep_idx);
2076 if (PREDICT_FALSE (!session))
2078 VDBG (0, "ERROR: Invalid vep_idx (%u)!", vep_idx);
2081 if (PREDICT_FALSE (!session->is_vep))
2083 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_idx);
2086 vep = &session->vep;
2087 VDBG (0, "vep_idx (%u): Dumping epoll chain\n"
2090 " is_vep_session = %u\n"
2091 " next_sid = 0x%x (%u)\n"
2092 "}\n", vep_idx, session->is_vep, session->is_vep_session,
2093 vep->next_sh, vep->next_sh);
2095 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
2097 session = vcl_session_get (wrk, sid);
2098 if (PREDICT_FALSE (!session))
2100 VDBG (0, "ERROR: Invalid sid (%u)!", sid);
2103 if (PREDICT_FALSE (session->is_vep))
2105 VDBG (0, "ERROR: sid (%u) is a vep!", vep_idx);
2107 else if (PREDICT_FALSE (!session->is_vep_session))
2109 VDBG (0, "ERROR: session (%u) is not a vep session!", sid);
2112 vep = &session->vep;
2113 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
2114 VDBG (0, "ERROR: session (%u) vep_idx (%u) != vep_idx (%u)!",
2115 sid, session->vep.vep_sh, vep_idx);
2116 if (session->is_vep_session)
2118 VDBG (0, "vep_idx[%u]: sid 0x%x (%u)\n"
2120 " next_sid = 0x%x (%u)\n"
2121 " prev_sid = 0x%x (%u)\n"
2122 " vep_idx = 0x%x (%u)\n"
2123 " ev.events = 0x%x\n"
2124 " ev.data.u64 = 0x%llx\n"
2127 vep_idx, sid, sid, vep->next_sh, vep->next_sh, vep->prev_sh,
2128 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2129 vep->ev.data.u64, vep->et_mask);
2134 VDBG (0, "vep_idx (%u): Dump complete!\n", vep_idx);
2138 vppcom_epoll_create (void)
2140 vcl_worker_t *wrk = vcl_worker_get_current ();
2141 vcl_session_t *vep_session;
2143 vep_session = vcl_session_alloc (wrk);
2145 vep_session->is_vep = 1;
2146 vep_session->vep.vep_sh = ~0;
2147 vep_session->vep.next_sh = ~0;
2148 vep_session->vep.prev_sh = ~0;
2149 vep_session->vpp_handle = ~0;
2151 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2152 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2154 return vcl_session_handle (vep_session);
2158 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2159 struct epoll_event *event)
2161 vcl_worker_t *wrk = vcl_worker_get_current ();
2162 vcl_session_t *vep_session;
2163 vcl_session_t *session;
2166 if (vep_handle == session_handle)
2168 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2169 return VPPCOM_EINVAL;
2172 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2173 if (PREDICT_FALSE (!vep_session))
2175 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2176 return VPPCOM_EBADFD;
2178 if (PREDICT_FALSE (!vep_session->is_vep))
2180 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2181 return VPPCOM_EINVAL;
2184 ASSERT (vep_session->vep.vep_sh == ~0);
2185 ASSERT (vep_session->vep.prev_sh == ~0);
2187 session = vcl_session_get_w_handle (wrk, session_handle);
2188 if (PREDICT_FALSE (!session))
2190 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2191 return VPPCOM_EBADFD;
2193 if (PREDICT_FALSE (session->is_vep))
2195 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2196 return VPPCOM_EINVAL;
2202 if (PREDICT_FALSE (!event))
2204 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2205 return VPPCOM_EINVAL;
2207 if (vep_session->vep.next_sh != ~0)
2209 vcl_session_t *next_session;
2210 next_session = vcl_session_get_w_handle (wrk,
2211 vep_session->vep.next_sh);
2212 if (PREDICT_FALSE (!next_session))
2214 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2215 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2216 return VPPCOM_EBADFD;
2218 ASSERT (next_session->vep.prev_sh == vep_handle);
2219 next_session->vep.prev_sh = session_handle;
2221 session->vep.next_sh = vep_session->vep.next_sh;
2222 session->vep.prev_sh = vep_handle;
2223 session->vep.vep_sh = vep_handle;
2224 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2225 session->vep.ev = *event;
2226 session->is_vep = 0;
2227 session->is_vep_session = 1;
2228 vep_session->vep.next_sh = session_handle;
2230 if (session->tx_fifo)
2231 svm_fifo_add_want_tx_ntf (session->tx_fifo,
2232 SVM_FIFO_WANT_TX_NOTIF_IF_FULL);
2234 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2235 vep_handle, session_handle, event->events, event->data.u64);
2236 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2240 if (PREDICT_FALSE (!event))
2242 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2246 else if (PREDICT_FALSE (!session->is_vep_session))
2248 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2252 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2254 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2255 session_handle, session->vep.vep_sh, vep_handle);
2259 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2260 session->vep.ev = *event;
2261 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2262 vep_handle, session_handle, event->events, event->data.u64);
2266 if (PREDICT_FALSE (!session->is_vep_session))
2268 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2272 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2274 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2275 session_handle, session->vep.vep_sh, vep_handle);
2280 if (session->vep.prev_sh == vep_handle)
2281 vep_session->vep.next_sh = session->vep.next_sh;
2284 vcl_session_t *prev_session;
2285 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2286 if (PREDICT_FALSE (!prev_session))
2288 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2289 session->vep.prev_sh, session_handle);
2290 return VPPCOM_EBADFD;
2292 ASSERT (prev_session->vep.next_sh == session_handle);
2293 prev_session->vep.next_sh = session->vep.next_sh;
2295 if (session->vep.next_sh != ~0)
2297 vcl_session_t *next_session;
2298 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2299 if (PREDICT_FALSE (!next_session))
2301 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2302 session->vep.next_sh, session_handle);
2303 return VPPCOM_EBADFD;
2305 ASSERT (next_session->vep.prev_sh == session_handle);
2306 next_session->vep.prev_sh = session->vep.prev_sh;
2309 memset (&session->vep, 0, sizeof (session->vep));
2310 session->vep.next_sh = ~0;
2311 session->vep.prev_sh = ~0;
2312 session->vep.vep_sh = ~0;
2313 session->is_vep_session = 0;
2315 if (session->tx_fifo)
2316 svm_fifo_del_want_tx_ntf (session->tx_fifo, SVM_FIFO_NO_TX_NOTIF);
2318 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2320 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2324 VDBG (0, "Invalid operation (%d)!", op);
2328 vep_verify_epoll_chain (wrk, vep_handle);
2335 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2336 struct epoll_event *events, u32 * num_ev)
2338 session_disconnected_msg_t *disconnected_msg;
2339 session_connected_msg_t *connected_msg;
2340 u32 sid = ~0, session_events;
2341 u64 session_evt_data = ~0;
2342 vcl_session_t *session;
2345 switch (e->event_type)
2347 case SESSION_IO_EVT_RX:
2348 sid = e->session_index;
2349 if (!(session = vcl_session_get (wrk, sid)))
2351 vcl_fifo_rx_evt_valid_or_break (session);
2352 session_events = session->vep.ev.events;
2353 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2356 events[*num_ev].events |= EPOLLIN;
2357 session_evt_data = session->vep.ev.data.u64;
2358 session->has_rx_evt = 1;
2360 case SESSION_IO_EVT_TX:
2361 sid = e->session_index;
2362 if (!(session = vcl_session_get (wrk, sid)))
2364 session_events = session->vep.ev.events;
2365 if (!(EPOLLOUT & session_events))
2368 events[*num_ev].events |= EPOLLOUT;
2369 session_evt_data = session->vep.ev.data.u64;
2370 svm_fifo_reset_tx_ntf (session->tx_fifo);
2372 case SESSION_CTRL_EVT_ACCEPTED:
2373 session = vcl_session_accepted (wrk,
2374 (session_accepted_msg_t *) e->data);
2378 session_events = session->vep.ev.events;
2379 if (!(EPOLLIN & session_events))
2383 events[*num_ev].events |= EPOLLIN;
2384 session_evt_data = session->vep.ev.data.u64;
2386 case SESSION_CTRL_EVT_CONNECTED:
2387 connected_msg = (session_connected_msg_t *) e->data;
2388 vcl_session_connected_handler (wrk, connected_msg);
2389 /* Generate EPOLLOUT because there's no connected event */
2390 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2391 if (!(session = vcl_session_get (wrk, sid)))
2393 session_events = session->vep.ev.events;
2394 if (!(EPOLLOUT & session_events))
2397 events[*num_ev].events |= EPOLLOUT;
2398 session_evt_data = session->vep.ev.data.u64;
2400 case SESSION_CTRL_EVT_DISCONNECTED:
2401 disconnected_msg = (session_disconnected_msg_t *) e->data;
2402 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2405 session_events = session->vep.ev.events;
2406 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2409 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2410 session_evt_data = session->vep.ev.data.u64;
2412 case SESSION_CTRL_EVT_RESET:
2413 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2414 if (!(session = vcl_session_get (wrk, sid)))
2416 session_events = session->vep.ev.events;
2417 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2420 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2421 session_evt_data = session->vep.ev.data.u64;
2423 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2424 vcl_session_unlisten_reply_handler (wrk, e->data);
2426 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2427 vcl_session_req_worker_update_handler (wrk, e->data);
2429 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2430 vcl_session_worker_update_reply_handler (wrk, e->data);
2433 VDBG (0, "unhandled: %u", e->event_type);
2439 events[*num_ev].data.u64 = session_evt_data;
2440 if (EPOLLONESHOT & session_events)
2442 session = vcl_session_get (wrk, sid);
2443 session->vep.ev.events = 0;
2450 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2451 struct epoll_event *events, u32 maxevents,
2452 double wait_for_time, u32 * num_ev)
2454 svm_msg_q_msg_t *msg;
2458 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2459 goto handle_dequeued;
2461 svm_msg_q_lock (mq);
2462 if (svm_msg_q_is_empty (mq))
2466 svm_msg_q_unlock (mq);
2469 else if (wait_for_time < 0)
2471 svm_msg_q_wait (mq);
2475 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2477 svm_msg_q_unlock (mq);
2482 vcl_mq_dequeue_batch (wrk, mq);
2483 svm_msg_q_unlock (mq);
2486 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2488 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2489 e = svm_msg_q_msg_data (mq, msg);
2490 if (*num_ev < maxevents)
2491 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2493 vec_add1 (wrk->unhandled_evts_vector, *e);
2494 svm_msg_q_free_msg (mq, msg);
2496 vec_reset_length (wrk->mq_msg_vector);
2497 vcl_handle_pending_wrk_updates (wrk);
2502 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2503 int maxevents, u32 n_evts, double wait_for_time)
2505 double wait = 0, start = 0;
2509 wait = wait_for_time;
2510 start = clib_time_now (&wrk->clib_time);
2515 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2522 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2530 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2531 int maxevents, u32 n_evts, double wait_for_time)
2533 vcl_mq_evt_conn_t *mqc;
2534 int __clib_unused n_read;
2538 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2540 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2541 vec_len (wrk->mq_events), wait_for_time);
2542 for (i = 0; i < n_mq_evts; i++)
2544 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2545 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2546 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2548 if (!n_evts && n_mq_evts > 0)
2551 return (int) n_evts;
2555 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2556 int maxevents, double wait_for_time)
2558 vcl_worker_t *wrk = vcl_worker_get_current ();
2559 vcl_session_t *vep_session;
2563 if (PREDICT_FALSE (maxevents <= 0))
2565 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2566 return VPPCOM_EINVAL;
2569 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2571 return VPPCOM_EBADFD;
2573 if (PREDICT_FALSE (!vep_session->is_vep))
2575 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2576 return VPPCOM_EINVAL;
2579 memset (events, 0, sizeof (*events) * maxevents);
2581 if (vec_len (wrk->unhandled_evts_vector))
2583 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2585 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2587 if (n_evts == maxevents)
2593 vec_delete (wrk->unhandled_evts_vector, i, 0);
2596 if (vcm->cfg.use_mq_eventfd)
2597 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2600 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2605 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2606 void *buffer, uint32_t * buflen)
2608 vcl_worker_t *wrk = vcl_worker_get_current ();
2609 vcl_session_t *session;
2611 u32 *flags = buffer, tmp_flags = 0;
2612 vppcom_endpt_t *ep = buffer;
2614 session = vcl_session_get_w_handle (wrk, session_handle);
2616 return VPPCOM_EBADFD;
2620 case VPPCOM_ATTR_GET_NREAD:
2621 rv = vcl_session_read_ready (session);
2622 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
2626 case VPPCOM_ATTR_GET_NWRITE:
2627 rv = vcl_session_write_ready (session);
2628 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
2632 case VPPCOM_ATTR_GET_FLAGS:
2633 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2635 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2636 VCL_SESS_ATTR_NONBLOCK));
2637 *buflen = sizeof (*flags);
2638 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
2639 "is_nonblocking = %u", session_handle, *flags,
2640 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2646 case VPPCOM_ATTR_SET_FLAGS:
2647 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2649 if (*flags & O_NONBLOCK)
2650 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2652 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2654 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
2655 " is_nonblocking = %u", session_handle, *flags,
2656 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2662 case VPPCOM_ATTR_GET_PEER_ADDR:
2663 if (PREDICT_TRUE (buffer && buflen &&
2664 (*buflen >= sizeof (*ep)) && ep->ip))
2666 ep->is_ip4 = session->transport.is_ip4;
2667 ep->port = session->transport.rmt_port;
2668 if (session->transport.is_ip4)
2669 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2670 sizeof (ip4_address_t));
2672 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2673 sizeof (ip6_address_t));
2674 *buflen = sizeof (*ep);
2675 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
2676 "addr = %U, port %u", session_handle, ep->is_ip4,
2677 format_ip46_address, &session->transport.rmt_ip,
2678 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2679 clib_net_to_host_u16 (ep->port));
2685 case VPPCOM_ATTR_GET_LCL_ADDR:
2686 if (PREDICT_TRUE (buffer && buflen &&
2687 (*buflen >= sizeof (*ep)) && ep->ip))
2689 ep->is_ip4 = session->transport.is_ip4;
2690 ep->port = session->transport.lcl_port;
2691 if (session->transport.is_ip4)
2692 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2693 sizeof (ip4_address_t));
2695 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2696 sizeof (ip6_address_t));
2697 *buflen = sizeof (*ep);
2698 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2699 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2700 &session->transport.lcl_ip,
2701 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2702 clib_net_to_host_u16 (ep->port));
2708 case VPPCOM_ATTR_GET_LIBC_EPFD:
2709 rv = session->libc_epfd;
2710 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
2713 case VPPCOM_ATTR_SET_LIBC_EPFD:
2714 if (PREDICT_TRUE (buffer && buflen &&
2715 (*buflen == sizeof (session->libc_epfd))))
2717 session->libc_epfd = *(int *) buffer;
2718 *buflen = sizeof (session->libc_epfd);
2720 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
2721 session->libc_epfd, *buflen);
2727 case VPPCOM_ATTR_GET_PROTOCOL:
2728 if (buffer && buflen && (*buflen >= sizeof (int)))
2730 *(int *) buffer = session->session_type;
2731 *buflen = sizeof (int);
2733 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2734 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
2740 case VPPCOM_ATTR_GET_LISTEN:
2741 if (buffer && buflen && (*buflen >= sizeof (int)))
2743 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2744 VCL_SESS_ATTR_LISTEN);
2745 *buflen = sizeof (int);
2747 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
2754 case VPPCOM_ATTR_GET_ERROR:
2755 if (buffer && buflen && (*buflen >= sizeof (int)))
2757 *(int *) buffer = 0;
2758 *buflen = sizeof (int);
2760 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2761 *(int *) buffer, *buflen);
2767 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2768 if (buffer && buflen && (*buflen >= sizeof (u32)))
2772 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2773 session->tx_fifo ? session->tx_fifo->nitems :
2774 vcm->cfg.tx_fifo_size);
2775 *buflen = sizeof (u32);
2777 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
2778 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
2785 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2786 if (buffer && buflen && (*buflen == sizeof (u32)))
2789 session->sndbuf_size = *(u32 *) buffer;
2790 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
2791 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
2798 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2799 if (buffer && buflen && (*buflen >= sizeof (u32)))
2803 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2804 session->rx_fifo ? session->rx_fifo->nitems :
2805 vcm->cfg.rx_fifo_size);
2806 *buflen = sizeof (u32);
2808 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
2809 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
2815 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2816 if (buffer && buflen && (*buflen == sizeof (u32)))
2819 session->rcvbuf_size = *(u32 *) buffer;
2820 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
2821 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
2828 case VPPCOM_ATTR_GET_REUSEADDR:
2829 if (buffer && buflen && (*buflen >= sizeof (int)))
2832 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2833 VCL_SESS_ATTR_REUSEADDR);
2834 *buflen = sizeof (int);
2836 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
2837 *(int *) buffer, *buflen);
2843 case VPPCOM_ATTR_SET_REUSEADDR:
2844 if (buffer && buflen && (*buflen == sizeof (int)) &&
2845 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2848 if (*(int *) buffer)
2849 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2851 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2853 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
2854 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
2861 case VPPCOM_ATTR_GET_REUSEPORT:
2862 if (buffer && buflen && (*buflen >= sizeof (int)))
2865 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2866 VCL_SESS_ATTR_REUSEPORT);
2867 *buflen = sizeof (int);
2869 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
2870 *(int *) buffer, *buflen);
2876 case VPPCOM_ATTR_SET_REUSEPORT:
2877 if (buffer && buflen && (*buflen == sizeof (int)) &&
2878 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2881 if (*(int *) buffer)
2882 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2884 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2886 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
2887 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
2894 case VPPCOM_ATTR_GET_BROADCAST:
2895 if (buffer && buflen && (*buflen >= sizeof (int)))
2898 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2899 VCL_SESS_ATTR_BROADCAST);
2900 *buflen = sizeof (int);
2902 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
2903 *(int *) buffer, *buflen);
2909 case VPPCOM_ATTR_SET_BROADCAST:
2910 if (buffer && buflen && (*buflen == sizeof (int)))
2913 if (*(int *) buffer)
2914 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2916 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2918 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
2919 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
2926 case VPPCOM_ATTR_GET_V6ONLY:
2927 if (buffer && buflen && (*buflen >= sizeof (int)))
2930 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2931 VCL_SESS_ATTR_V6ONLY);
2932 *buflen = sizeof (int);
2934 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
2935 *(int *) buffer, *buflen);
2941 case VPPCOM_ATTR_SET_V6ONLY:
2942 if (buffer && buflen && (*buflen == sizeof (int)))
2945 if (*(int *) buffer)
2946 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2948 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2950 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
2951 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
2958 case VPPCOM_ATTR_GET_KEEPALIVE:
2959 if (buffer && buflen && (*buflen >= sizeof (int)))
2962 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2963 VCL_SESS_ATTR_KEEPALIVE);
2964 *buflen = sizeof (int);
2966 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
2967 *(int *) buffer, *buflen);
2973 case VPPCOM_ATTR_SET_KEEPALIVE:
2974 if (buffer && buflen && (*buflen == sizeof (int)))
2977 if (*(int *) buffer)
2978 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2980 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2982 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
2983 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
2990 case VPPCOM_ATTR_GET_TCP_NODELAY:
2991 if (buffer && buflen && (*buflen >= sizeof (int)))
2994 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2995 VCL_SESS_ATTR_TCP_NODELAY);
2996 *buflen = sizeof (int);
2998 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
2999 *(int *) buffer, *buflen);
3005 case VPPCOM_ATTR_SET_TCP_NODELAY:
3006 if (buffer && buflen && (*buflen == sizeof (int)))
3009 if (*(int *) buffer)
3010 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3012 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3014 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3015 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3022 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3023 if (buffer && buflen && (*buflen >= sizeof (int)))
3026 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3027 VCL_SESS_ATTR_TCP_KEEPIDLE);
3028 *buflen = sizeof (int);
3030 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3031 *(int *) buffer, *buflen);
3037 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3038 if (buffer && buflen && (*buflen == sizeof (int)))
3041 if (*(int *) buffer)
3042 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3044 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3046 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3047 VCL_SESS_ATTR_TEST (session->attr,
3048 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3054 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3055 if (buffer && buflen && (*buflen >= sizeof (int)))
3058 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3059 VCL_SESS_ATTR_TCP_KEEPINTVL);
3060 *buflen = sizeof (int);
3062 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3063 *(int *) buffer, *buflen);
3069 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3070 if (buffer && buflen && (*buflen == sizeof (int)))
3073 if (*(int *) buffer)
3074 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3076 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3078 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3079 VCL_SESS_ATTR_TEST (session->attr,
3080 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3086 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3087 if (buffer && buflen && (*buflen >= sizeof (u32)))
3090 *(u32 *) buffer = session->user_mss;
3091 *buflen = sizeof (int);
3093 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3094 *(int *) buffer, *buflen);
3100 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3101 if (buffer && buflen && (*buflen == sizeof (u32)))
3104 session->user_mss = *(u32 *) buffer;
3106 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3107 session->user_mss, *buflen);
3113 case VPPCOM_ATTR_SET_SHUT:
3114 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3115 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3116 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3117 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3120 case VPPCOM_ATTR_GET_SHUT:
3121 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3123 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3126 *(int *) buffer = SHUT_RD;
3127 else if (tmp_flags == 2)
3128 *(int *) buffer = SHUT_WR;
3129 else if (tmp_flags == 3)
3130 *(int *) buffer = SHUT_RDWR;
3131 *buflen = sizeof (int);
3142 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3143 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3145 vcl_worker_t *wrk = vcl_worker_get_current ();
3147 vcl_session_t *session = 0;
3151 session = vcl_session_get_w_handle (wrk, session_handle);
3152 if (PREDICT_FALSE (!session))
3154 VDBG (0, "sh 0x%llx is closed!", session_handle);
3155 return VPPCOM_EBADFD;
3157 ep->is_ip4 = session->transport.is_ip4;
3158 ep->port = session->transport.rmt_port;
3162 rv = vppcom_session_read (session_handle, buffer, buflen);
3163 else if (flags & MSG_PEEK)
3164 rv = vppcom_session_peek (session_handle, buffer, buflen);
3167 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3168 return VPPCOM_EAFNOSUPPORT;
3173 if (session->transport.is_ip4)
3174 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3175 sizeof (ip4_address_t));
3177 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3178 sizeof (ip6_address_t));
3185 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3186 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3189 return VPPCOM_EINVAL;
3194 return VPPCOM_EINVAL;
3199 // TBD check the flags and do the right thing
3200 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3203 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3207 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3209 vcl_worker_t *wrk = vcl_worker_get_current ();
3210 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3211 u32 i, keep_trying = 1;
3212 svm_msg_q_msg_t msg;
3216 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3219 return VPPCOM_EFAULT;
3223 vcl_session_t *session;
3225 /* Dequeue all events and drop all unhandled io events */
3226 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3228 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3229 vcl_handle_mq_event (wrk, e);
3230 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3232 vec_reset_length (wrk->unhandled_evts_vector);
3234 for (i = 0; i < n_sids; i++)
3236 session = vcl_session_get (wrk, vp[i].sh);
3239 vp[i].revents = POLLHUP;
3246 if (POLLIN & vp[i].events)
3248 rv = vcl_session_read_ready (session);
3251 vp[i].revents |= POLLIN;
3258 case VPPCOM_ECONNRESET:
3259 vp[i].revents = POLLHUP;
3263 vp[i].revents = POLLERR;
3270 if (POLLOUT & vp[i].events)
3272 rv = vcl_session_write_ready (session);
3275 vp[i].revents |= POLLOUT;
3282 case VPPCOM_ECONNRESET:
3283 vp[i].revents = POLLHUP;
3287 vp[i].revents = POLLERR;
3294 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3296 vp[i].revents = POLLNVAL;
3300 if (wait_for_time != -1)
3301 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3303 while ((num_ev == 0) && keep_trying);
3309 vppcom_mq_epoll_fd (void)
3311 vcl_worker_t *wrk = vcl_worker_get_current ();
3312 return wrk->mqs_epfd;
3316 vppcom_session_index (vcl_session_handle_t session_handle)
3318 return session_handle & 0xFFFFFF;
3322 vppcom_session_worker (vcl_session_handle_t session_handle)
3324 return session_handle >> 24;
3328 vppcom_worker_register (void)
3330 if (!vcl_worker_alloc_and_init ())
3331 return VPPCOM_EEXIST;
3333 if (vcl_worker_set_bapi ())
3334 return VPPCOM_EEXIST;
3336 if (vcl_worker_register_with_vpp ())
3337 return VPPCOM_EEXIST;
3343 vppcom_worker_index (void)
3345 return vcl_get_worker_index ();
3349 vppcom_worker_mqs_epfd (void)
3351 vcl_worker_t *wrk = vcl_worker_get_current ();
3352 if (!vcm->cfg.use_mq_eventfd)
3354 return wrk->mqs_epfd;
3358 * fd.io coding-style-patch-verification: ON
3361 * eval: (c-set-style "gnu")