2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_wait_for_segment (u64 segment_handle)
28 vcl_worker_t *wrk = vcl_worker_get_current ();
29 u32 wait_for_seconds = 10, segment_index;
32 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
35 timeout = clib_time_now (&wrk->clib_time) + wait_for_seconds;
36 while (clib_time_now (&wrk->clib_time) < timeout)
38 segment_index = vcl_segment_table_lookup (segment_handle);
39 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
47 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
53 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
54 for (i = 0; i < n_msgs; i++)
56 vec_add2 (wrk->mq_msg_vector, msg, 1);
57 svm_msg_q_sub_w_lock (mq, msg);
63 vppcom_session_state_str (vcl_session_state_t state)
85 case STATE_VPP_CLOSING:
86 st = "STATE_VPP_CLOSING";
89 case STATE_DISCONNECT:
90 st = "STATE_DISCONNECT";
101 case STATE_LISTEN_NO_MQ:
102 st = "STATE_LISTEN_NO_MQ";
106 st = "UNKNOWN_STATE";
114 format_ip4_address (u8 * s, va_list * args)
116 u8 *a = va_arg (*args, u8 *);
117 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
121 format_ip6_address (u8 * s, va_list * args)
123 ip6_address_t *a = va_arg (*args, ip6_address_t *);
124 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
126 i_max_n_zero = ARRAY_LEN (a->as_u16);
128 i_first_zero = i_max_n_zero;
130 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
132 u32 is_zero = a->as_u16[i] == 0;
133 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
139 if ((!is_zero && n_zeros > max_n_zeros)
140 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
142 i_max_n_zero = i_first_zero;
143 max_n_zeros = n_zeros;
144 i_first_zero = ARRAY_LEN (a->as_u16);
149 last_double_colon = 0;
150 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
152 if (i == i_max_n_zero && max_n_zeros > 1)
154 s = format (s, "::");
155 i += max_n_zeros - 1;
156 last_double_colon = 1;
160 s = format (s, "%s%x",
161 (last_double_colon || i == 0) ? "" : ":",
162 clib_net_to_host_u16 (a->as_u16[i]));
163 last_double_colon = 0;
170 /* Format an IP46 address. */
172 format_ip46_address (u8 * s, va_list * args)
174 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
175 ip46_type_t type = va_arg (*args, ip46_type_t);
181 is_ip4 = ip46_address_is_ip4 (ip46);
192 format (s, "%U", format_ip4_address, &ip46->ip4) :
193 format (s, "%U", format_ip6_address, &ip46->ip6);
197 * VPPCOM Utility Functions
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,
266 vcl_session_t *session, *listen_session;
267 svm_fifo_t *rx_fifo, *tx_fifo;
271 session = vcl_session_alloc (wrk);
273 listen_session = vcl_session_get (wrk, ls_index);
274 if (listen_session->vpp_handle != mp->listener_handle)
276 VDBG (0, "ERROR: listener handle %lu does not match session %u",
277 mp->listener_handle, ls_index);
281 if (vcl_wait_for_segment (mp->segment_handle))
283 VDBG (0, "ERROR: segment for session %u couldn't be mounted!",
284 session->session_index);
288 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
289 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
290 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
292 rx_fifo->client_session_index = session->session_index;
293 tx_fifo->client_session_index = session->session_index;
294 rx_fifo->client_thread_index = vcl_get_worker_index ();
295 tx_fifo->client_thread_index = vcl_get_worker_index ();
296 vpp_wrk_index = tx_fifo->master_thread_index;
297 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
298 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
300 session->vpp_handle = mp->handle;
301 session->vpp_thread_index = rx_fifo->master_thread_index;
302 session->rx_fifo = rx_fifo;
303 session->tx_fifo = tx_fifo;
305 session->session_state = STATE_ACCEPT;
306 session->transport.rmt_port = mp->rmt.port;
307 session->transport.is_ip4 = mp->rmt.is_ip4;
308 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
309 sizeof (ip46_address_t));
311 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
312 session->transport.lcl_port = listen_session->transport.lcl_port;
313 session->transport.lcl_ip = listen_session->transport.lcl_ip;
314 session->session_type = listen_session->session_type;
315 session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
317 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
318 " port %d queue %p!", session->session_index, mp->handle,
319 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
320 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
321 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
322 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
324 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
325 session->vpp_handle, 0);
327 return session->session_index;
330 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
331 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
332 VNET_API_ERROR_INVALID_ARGUMENT);
333 vcl_session_free (wrk, session);
334 return VCL_INVALID_SESSION_INDEX;
338 vcl_session_connected_handler (vcl_worker_t * wrk,
339 session_connected_msg_t * mp)
341 u32 session_index, vpp_wrk_index;
342 svm_fifo_t *rx_fifo, *tx_fifo;
343 vcl_session_t *session = 0;
345 session_index = mp->context;
346 session = vcl_session_get (wrk, session_index);
349 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
350 mp->handle, session_index);
351 return VCL_INVALID_SESSION_INDEX;
355 VDBG (0, "ERROR: session index %u: connect failed! %U",
356 session_index, format_api_error, ntohl (mp->retval));
357 session->session_state = STATE_FAILED;
358 session->vpp_handle = mp->handle;
359 return session_index;
362 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
363 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
364 if (vcl_wait_for_segment (mp->segment_handle))
366 VDBG (0, "segment for session %u couldn't be mounted!",
367 session->session_index);
368 session->session_state = STATE_FAILED;
369 return VCL_INVALID_SESSION_INDEX;
372 rx_fifo->client_session_index = session_index;
373 tx_fifo->client_session_index = session_index;
374 rx_fifo->client_thread_index = vcl_get_worker_index ();
375 tx_fifo->client_thread_index = vcl_get_worker_index ();
377 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
379 vpp_wrk_index = tx_fifo->master_thread_index;
380 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
381 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
385 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
386 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
387 if (vcl_wait_for_segment (mp->ct_segment_handle))
389 VDBG (0, "ct segment for session %u couldn't be mounted!",
390 session->session_index);
391 session->session_state = STATE_FAILED;
392 return VCL_INVALID_SESSION_INDEX;
396 session->rx_fifo = rx_fifo;
397 session->tx_fifo = tx_fifo;
398 session->vpp_handle = mp->handle;
399 session->vpp_thread_index = rx_fifo->master_thread_index;
400 session->transport.is_ip4 = mp->lcl.is_ip4;
401 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
402 sizeof (session->transport.lcl_ip));
403 session->transport.lcl_port = mp->lcl.port;
404 session->session_state = STATE_CONNECT;
406 /* Add it to lookup table */
407 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
409 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
410 " refcnt %d", session_index, mp->handle, session->rx_fifo,
411 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
413 return session_index;
417 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
419 vcl_session_msg_t *accepted_msg;
422 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
424 accepted_msg = &session->accept_evts_fifo[i];
425 if (accepted_msg->accepted_msg.handle == handle)
427 accepted_msg->flags |= flags;
435 vcl_session_reset_handler (vcl_worker_t * wrk,
436 session_reset_msg_t * reset_msg)
438 vcl_session_t *session;
441 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
442 session = vcl_session_get (wrk, sid);
445 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
446 return VCL_INVALID_SESSION_INDEX;
449 /* Caught a reset before actually accepting the session */
450 if (session->session_state == STATE_LISTEN)
453 if (!vcl_flag_accepted_session (session, reset_msg->handle,
454 VCL_ACCEPTED_F_RESET))
455 VDBG (0, "session was not accepted!");
456 return VCL_INVALID_SESSION_INDEX;
459 session->session_state = STATE_DISCONNECT;
460 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
465 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
467 vcl_session_t *session;
468 u32 sid = mp->context;
470 session = vcl_session_get (wrk, sid);
473 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
474 format_api_error, mp->retval);
477 session->session_state = STATE_FAILED;
478 session->vpp_handle = mp->handle;
483 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
485 return VCL_INVALID_SESSION_INDEX;
489 session->vpp_handle = mp->handle;
490 session->transport.is_ip4 = mp->lcl_is_ip4;
491 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
492 sizeof (ip46_address_t));
493 session->transport.lcl_port = mp->lcl_port;
494 vcl_session_table_add_listener (wrk, mp->handle, sid);
495 session->session_state = STATE_LISTEN;
497 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
498 vec_validate (wrk->vpp_event_queues, 0);
499 wrk->vpp_event_queues[0] = session->vpp_evt_q;
501 if (session->is_dgram)
503 svm_fifo_t *rx_fifo, *tx_fifo;
504 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
505 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
506 rx_fifo->client_session_index = sid;
507 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
508 tx_fifo->client_session_index = sid;
509 session->rx_fifo = rx_fifo;
510 session->tx_fifo = tx_fifo;
513 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
518 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
520 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
523 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
524 if (!s || s->session_state != STATE_DISCONNECT)
526 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
531 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
532 s->session_index, mp->handle, format_api_error, ntohl (mp->retval));
534 if (mp->context != wrk->wrk_index)
535 VDBG (0, "wrong context");
537 vcl_session_table_del_vpp_handle (wrk, mp->handle);
538 vcl_session_free (wrk, s);
541 static vcl_session_t *
542 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
544 vcl_session_msg_t *vcl_msg;
545 vcl_session_t *session;
547 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
548 if (PREDICT_FALSE (session != 0))
549 VWRN ("session overlap handle %lu state %u!", msg->handle,
550 session->session_state);
552 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
555 VERR ("couldn't find listen session: listener handle %llx",
556 msg->listener_handle);
560 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
561 vcl_msg->accepted_msg = *msg;
562 /* Session handle points to listener until fully accepted by app */
563 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
568 static vcl_session_t *
569 vcl_session_disconnected_handler (vcl_worker_t * wrk,
570 session_disconnected_msg_t * msg)
572 vcl_session_t *session;
574 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
577 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
581 /* Caught a disconnect before actually accepting the session */
582 if (session->session_state == STATE_LISTEN)
584 if (!vcl_flag_accepted_session (session, msg->handle,
585 VCL_ACCEPTED_F_CLOSED))
586 VDBG (0, "session was not accepted!");
590 session->session_state = STATE_VPP_CLOSING;
595 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
597 session_req_worker_update_msg_t *msg;
600 msg = (session_req_worker_update_msg_t *) data;
601 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
605 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
609 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
611 session_worker_update_reply_msg_t *msg;
614 msg = (session_worker_update_reply_msg_t *) data;
615 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
618 VDBG (0, "unknown handle 0x%llx", msg->handle);
621 if (vcl_wait_for_segment (msg->segment_handle))
623 clib_warning ("segment for session %u couldn't be mounted!",
630 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
631 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
632 s->rx_fifo->client_session_index = s->session_index;
633 s->tx_fifo->client_session_index = s->session_index;
634 s->rx_fifo->client_thread_index = wrk->wrk_index;
635 s->tx_fifo->client_thread_index = wrk->wrk_index;
637 s->session_state = STATE_UPDATED;
639 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
640 s->vpp_handle, wrk->wrk_index);
644 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
646 session_disconnected_msg_t *disconnected_msg;
647 vcl_session_t *session;
649 switch (e->event_type)
651 case SESSION_IO_EVT_RX:
652 case SESSION_IO_EVT_TX:
653 session = vcl_session_get (wrk, e->session_index);
654 if (!session || !(session->session_state & STATE_OPEN))
656 vec_add1 (wrk->unhandled_evts_vector, *e);
658 case SESSION_CTRL_EVT_ACCEPTED:
659 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
661 case SESSION_CTRL_EVT_CONNECTED:
662 vcl_session_connected_handler (wrk,
663 (session_connected_msg_t *) e->data);
665 case SESSION_CTRL_EVT_DISCONNECTED:
666 disconnected_msg = (session_disconnected_msg_t *) e->data;
667 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
670 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
671 session->vpp_handle);
673 case SESSION_CTRL_EVT_RESET:
674 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
676 case SESSION_CTRL_EVT_BOUND:
677 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
679 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
680 vcl_session_unlisten_reply_handler (wrk, e->data);
682 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
683 vcl_session_req_worker_update_handler (wrk, e->data);
685 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
686 vcl_session_worker_update_reply_handler (wrk, e->data);
689 clib_warning ("unhandled %u", e->event_type);
695 vppcom_wait_for_session_state_change (u32 session_index,
696 vcl_session_state_t state,
699 vcl_worker_t *wrk = vcl_worker_get_current ();
700 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
701 vcl_session_t *volatile session;
707 session = vcl_session_get (wrk, session_index);
708 if (PREDICT_FALSE (!session))
710 return VPPCOM_EBADFD;
712 if (session->session_state & state)
716 if (session->session_state & STATE_FAILED)
718 return VPPCOM_ECONNREFUSED;
721 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
726 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
727 vcl_handle_mq_event (wrk, e);
728 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
730 while (clib_time_now (&wrk->clib_time) < timeout);
732 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
733 vppcom_session_state_str (state));
734 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
736 return VPPCOM_ETIMEDOUT;
740 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
742 vcl_session_state_t state;
746 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
749 vec_foreach (sip, wrk->pending_session_wrk_updates)
751 s = vcl_session_get (wrk, *sip);
752 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
753 state = s->session_state;
754 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
755 s->session_state = state;
757 vec_reset_length (wrk->pending_session_wrk_updates);
761 vcl_flush_mq_events (void)
763 vcl_worker_t *wrk = vcl_worker_get_current ();
764 svm_msg_q_msg_t *msg;
769 mq = wrk->app_event_queue;
771 vcl_mq_dequeue_batch (wrk, mq, ~0);
772 svm_msg_q_unlock (mq);
774 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
776 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
777 e = svm_msg_q_msg_data (mq, msg);
778 vcl_handle_mq_event (wrk, e);
779 svm_msg_q_free_msg (mq, msg);
781 vec_reset_length (wrk->mq_msg_vector);
782 vcl_handle_pending_wrk_updates (wrk);
786 vppcom_app_session_enable (void)
790 if (vcm->app_state != STATE_APP_ENABLED)
792 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
793 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
794 if (PREDICT_FALSE (rv))
796 VDBG (0, "application session enable timed out! returning %d (%s)",
797 rv, vppcom_retval_str (rv));
805 vppcom_app_attach (void)
809 vppcom_app_send_attach ();
810 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
811 if (PREDICT_FALSE (rv))
813 VDBG (0, "application attach timed out! returning %d (%s)", rv,
814 vppcom_retval_str (rv));
822 vppcom_session_unbind (u32 session_handle)
824 vcl_worker_t *wrk = vcl_worker_get_current ();
825 session_accepted_msg_t *accepted_msg;
826 vcl_session_t *session = 0;
827 vcl_session_msg_t *evt;
830 session = vcl_session_get_w_handle (wrk, session_handle);
832 return VPPCOM_EBADFD;
834 /* Flush pending accept events, if any */
835 while (clib_fifo_elts (session->accept_evts_fifo))
837 clib_fifo_sub2 (session->accept_evts_fifo, evt);
838 accepted_msg = &evt->accepted_msg;
839 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
840 vcl_send_session_accepted_reply (session->vpp_evt_q,
841 accepted_msg->context,
842 session->vpp_handle, -1);
844 clib_fifo_free (session->accept_evts_fifo);
846 vpp_handle = session->vpp_handle;
847 session->vpp_handle = ~0;
848 session->session_state = STATE_DISCONNECT;
850 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
852 vcl_evt (VCL_EVT_UNBIND, session);
853 vppcom_send_unbind_sock (wrk, vpp_handle);
859 vppcom_session_disconnect (u32 session_handle)
861 vcl_worker_t *wrk = vcl_worker_get_current ();
862 svm_msg_q_t *vpp_evt_q;
863 vcl_session_t *session;
864 vcl_session_state_t state;
867 session = vcl_session_get_w_handle (wrk, session_handle);
869 return VPPCOM_EBADFD;
871 vpp_handle = session->vpp_handle;
872 state = session->session_state;
874 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
875 vpp_handle, state, vppcom_session_state_str (state));
877 if (PREDICT_FALSE (state & STATE_LISTEN))
879 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
880 return VPPCOM_EBADFD;
883 if (state & STATE_VPP_CLOSING)
885 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
886 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
888 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
889 session->session_index, vpp_handle);
893 VDBG (1, "session %u [0x%llx]: sending disconnect...",
894 session->session_index, vpp_handle);
895 vppcom_send_disconnect_session (vpp_handle);
904 * Notify vpp of the disconnect and mark the worker as free. If we're the
905 * last worker, do a full cleanup otherwise, since we're probably a forked
906 * child, avoid syscalls as much as possible. We might've lost privileges.
909 vppcom_app_exit (void)
911 if (!pool_elts (vcm->workers))
913 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
914 vcl_set_worker_index (~0);
916 if (vec_len (vcm->workers) == 1)
917 vl_client_disconnect_from_vlib ();
919 vl_client_send_disconnect (1 /* vpp should cleanup */ );
923 * VPPCOM Public API functions
926 vppcom_app_create (char *app_name)
928 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
933 VDBG (1, "already initialized");
934 return VPPCOM_EEXIST;
938 vppcom_cfg (&vcm->cfg);
941 vcm->main_cpu = pthread_self ();
942 vcm->main_pid = getpid ();
943 vcm->app_name = format (0, "%s", app_name);
944 vppcom_init_error_string_table ();
945 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
946 20 /* timeout in secs */ );
947 pool_alloc (vcm->workers, vcl_cfg->max_workers);
948 clib_spinlock_init (&vcm->workers_lock);
949 clib_rwlock_init (&vcm->segment_table_lock);
950 atexit (vppcom_app_exit);
952 /* Allocate default worker */
953 vcl_worker_alloc_and_init ();
955 /* API hookup and connect to VPP */
956 vppcom_api_hookup ();
958 vcm->app_state = STATE_APP_START;
959 rv = vppcom_connect_to_vpp (app_name);
962 VERR ("couldn't connect to VPP!");
965 VDBG (0, "sending session enable");
966 rv = vppcom_app_session_enable ();
969 VERR ("vppcom_app_session_enable() failed!");
973 VDBG (0, "sending app attach");
974 rv = vppcom_app_attach ();
977 VERR ("vppcom_app_attach() failed!");
981 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
982 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
988 vppcom_app_destroy (void)
991 f64 orig_app_timeout;
993 if (!pool_elts (vcm->workers))
996 vcl_evt (VCL_EVT_DETACH, vcm);
998 if (pool_elts (vcm->workers) == 1)
1000 vppcom_app_send_detach ();
1001 orig_app_timeout = vcm->cfg.app_timeout;
1002 vcm->cfg.app_timeout = 2.0;
1003 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1004 vcm->cfg.app_timeout = orig_app_timeout;
1005 if (PREDICT_FALSE (rv))
1006 VDBG (0, "application detach timed out! returning %d (%s)", rv,
1007 vppcom_retval_str (rv));
1008 vec_free (vcm->app_name);
1009 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1013 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1016 vcl_set_worker_index (~0);
1017 vcl_elog_stop (vcm);
1018 vl_client_disconnect_from_vlib ();
1022 vppcom_session_create (u8 proto, u8 is_nonblocking)
1024 vcl_worker_t *wrk = vcl_worker_get_current ();
1025 vcl_session_t *session;
1027 session = vcl_session_alloc (wrk);
1029 session->session_type = proto;
1030 session->session_state = STATE_START;
1031 session->vpp_handle = ~0;
1032 session->is_dgram = proto == VPPCOM_PROTO_UDP;
1035 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1037 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1038 is_nonblocking, session_index);
1040 VDBG (0, "created session %u", session->session_index);
1042 return vcl_session_handle (session);
1046 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1047 vcl_session_handle_t sh, u8 do_disconnect)
1049 vcl_session_state_t state;
1050 u32 next_sh, vep_sh;
1055 is_vep = session->is_vep;
1056 next_sh = session->vep.next_sh;
1057 vep_sh = session->vep.vep_sh;
1058 state = session->session_state;
1059 vpp_handle = session->vpp_handle;
1061 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1065 while (next_sh != ~0)
1067 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1068 if (PREDICT_FALSE (rv < 0))
1069 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1070 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1071 vppcom_retval_str (rv));
1073 next_sh = session->vep.next_sh;
1078 if (session->is_vep_session)
1080 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1082 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1083 "failed! rv %d (%s)", session->session_index, vpp_handle,
1084 vep_sh, rv, vppcom_retval_str (rv));
1089 VDBG (1, "session %u [0x%llx] disconnect skipped",
1090 session->session_index, vpp_handle);
1094 if (state & STATE_LISTEN)
1096 rv = vppcom_session_unbind (sh);
1097 if (PREDICT_FALSE (rv < 0))
1098 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1099 "rv %d (%s)", session->session_index, vpp_handle, rv,
1100 vppcom_retval_str (rv));
1103 else if (state & STATE_OPEN)
1105 rv = vppcom_session_disconnect (sh);
1106 if (PREDICT_FALSE (rv < 0))
1107 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1108 " rv %d (%s)", session->session_index, vpp_handle,
1109 rv, vppcom_retval_str (rv));
1111 else if (state == STATE_DISCONNECT)
1113 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1114 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1115 session->vpp_handle, 0);
1119 VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
1122 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1123 vcl_session_free (wrk, session);
1124 vcl_evt (VCL_EVT_CLOSE, session, rv);
1130 vppcom_session_close (uint32_t session_handle)
1132 vcl_worker_t *wrk = vcl_worker_get_current ();
1133 vcl_session_t *session;
1135 session = vcl_session_get_w_handle (wrk, session_handle);
1137 return VPPCOM_EBADFD;
1138 return vcl_session_cleanup (wrk, session, session_handle,
1139 1 /* do_disconnect */ );
1143 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1145 vcl_worker_t *wrk = vcl_worker_get_current ();
1146 vcl_session_t *session = 0;
1149 return VPPCOM_EINVAL;
1151 session = vcl_session_get_w_handle (wrk, session_handle);
1153 return VPPCOM_EBADFD;
1155 if (session->is_vep)
1157 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1158 session->session_index);
1159 return VPPCOM_EBADFD;
1162 session->transport.is_ip4 = ep->is_ip4;
1164 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1165 sizeof (ip4_address_t));
1167 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1168 sizeof (ip6_address_t));
1169 session->transport.lcl_port = ep->port;
1171 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1172 "proto %s", session->session_index, session_handle,
1173 session->transport.is_ip4 ? "IPv4" : "IPv6",
1174 format_ip46_address, &session->transport.lcl_ip,
1175 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1176 clib_net_to_host_u16 (session->transport.lcl_port),
1177 vppcom_proto_str (session->session_type));
1178 vcl_evt (VCL_EVT_BIND, session);
1180 if (session->session_type == VPPCOM_PROTO_UDP)
1181 vppcom_session_listen (session_handle, 10);
1187 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1189 vcl_worker_t *wrk = vcl_worker_get_current ();
1190 vcl_session_t *listen_session = 0;
1191 u64 listen_vpp_handle;
1194 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1195 if (!listen_session || listen_session->is_vep)
1196 return VPPCOM_EBADFD;
1198 if (q_len == 0 || q_len == ~0)
1199 q_len = vcm->cfg.listen_queue_size;
1201 listen_vpp_handle = listen_session->vpp_handle;
1202 if (listen_session->session_state & STATE_LISTEN)
1204 VDBG (0, "session %u [0x%llx]: already in listen state!",
1205 listen_sh, listen_vpp_handle);
1209 VDBG (0, "session %u [0x%llx]: sending vpp listen request...",
1210 listen_sh, listen_vpp_handle);
1213 * Send listen request to vpp and wait for reply
1215 vppcom_send_bind_sock (listen_session);
1216 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1218 vcm->cfg.session_timeout);
1220 if (PREDICT_FALSE (rv))
1222 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1223 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1224 listen_sh, listen_session->vpp_handle, rv,
1225 vppcom_retval_str (rv));
1233 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1237 vcl_worker_t *wrk = vcl_worker_get_current ();
1238 vcl_session_t *session = 0;
1240 session = vcl_session_get_w_handle (wrk, session_handle);
1242 return VPPCOM_EBADFD;
1244 if (cert_len == 0 || cert_len == ~0)
1245 return VPPCOM_EBADFD;
1248 * Send listen request to vpp and wait for reply
1250 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1257 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1261 vcl_worker_t *wrk = vcl_worker_get_current ();
1262 vcl_session_t *session = 0;
1264 session = vcl_session_get_w_handle (wrk, session_handle);
1266 return VPPCOM_EBADFD;
1268 if (key_len == 0 || key_len == ~0)
1269 return VPPCOM_EBADFD;
1272 * Send listen request to vpp and wait for reply
1274 vppcom_send_application_tls_key_add (session, key, key_len);
1282 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1286 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1288 return VPPCOM_EBADFD;
1291 if (ls->session_state != STATE_LISTEN)
1293 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1294 " (%s)", ls->vpp_handle, ls->session_index, ls->session_state,
1295 vppcom_session_state_str (ls->session_state));
1296 return VPPCOM_EBADFD;
1302 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1305 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1306 vcl_worker_t *wrk = vcl_worker_get_current ();
1307 session_accepted_msg_t accepted_msg;
1308 vcl_session_t *listen_session = 0;
1309 vcl_session_t *client_session = 0;
1310 vcl_session_msg_t *evt;
1311 svm_msg_q_msg_t msg;
1316 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1317 if (!listen_session)
1318 return VPPCOM_EBADFD;
1320 listen_session_index = listen_session->session_index;
1321 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1324 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1326 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1327 accept_flags = evt->flags;
1328 accepted_msg = evt->accepted_msg;
1332 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1333 VCL_SESS_ATTR_NONBLOCK);
1334 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1335 return VPPCOM_EAGAIN;
1339 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1340 return VPPCOM_EAGAIN;
1342 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1343 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1345 VDBG (0, "discarded event: %u", e->event_type);
1346 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1349 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1350 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1356 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1357 listen_session_index);
1358 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1359 return VPPCOM_ECONNABORTED;
1361 listen_session = vcl_session_get (wrk, listen_session_index);
1362 client_session = vcl_session_get (wrk, client_session_index);
1364 if (flags & O_NONBLOCK)
1365 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1367 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1368 " flags %d, is_nonblocking %u", listen_session->session_index,
1369 listen_session->vpp_handle, client_session_index,
1370 client_session->vpp_handle, flags,
1371 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1375 ep->is_ip4 = client_session->transport.is_ip4;
1376 ep->port = client_session->transport.rmt_port;
1377 if (client_session->transport.is_ip4)
1378 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1379 sizeof (ip4_address_t));
1381 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1382 sizeof (ip6_address_t));
1385 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1386 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1387 client_session_index, client_session->vpp_handle,
1388 format_ip46_address, &client_session->transport.rmt_ip,
1389 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1390 clib_net_to_host_u16 (client_session->transport.rmt_port),
1391 format_ip46_address, &client_session->transport.lcl_ip,
1392 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1393 clib_net_to_host_u16 (client_session->transport.lcl_port));
1394 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1395 client_session_index);
1398 * Session might have been closed already
1402 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1403 client_session->session_state = STATE_VPP_CLOSING;
1404 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1405 client_session->session_state = STATE_DISCONNECT;
1407 return vcl_session_handle (client_session);
1411 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1413 vcl_worker_t *wrk = vcl_worker_get_current ();
1414 vcl_session_t *session = 0;
1418 session = vcl_session_get_w_handle (wrk, session_handle);
1420 return VPPCOM_EBADFD;
1421 session_index = session->session_index;
1423 if (PREDICT_FALSE (session->is_vep))
1425 VDBG (0, "ERROR: cannot connect epoll session %u!",
1426 session->session_index);
1427 return VPPCOM_EBADFD;
1430 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1432 VDBG (0, "session handle %u [0x%llx]: session already "
1433 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1434 session_handle, session->vpp_handle,
1435 session->transport.is_ip4 ? "IPv4" : "IPv6",
1436 format_ip46_address,
1437 &session->transport.rmt_ip, session->transport.is_ip4 ?
1438 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1439 clib_net_to_host_u16 (session->transport.rmt_port),
1440 vppcom_proto_str (session->session_type), session->session_state,
1441 vppcom_session_state_str (session->session_state));
1445 session->transport.is_ip4 = server_ep->is_ip4;
1446 if (session->transport.is_ip4)
1447 clib_memcpy_fast (&session->transport.rmt_ip.ip4, server_ep->ip,
1448 sizeof (ip4_address_t));
1450 clib_memcpy_fast (&session->transport.rmt_ip.ip6, server_ep->ip,
1451 sizeof (ip6_address_t));
1452 session->transport.rmt_port = server_ep->port;
1454 VDBG (0, "session handle %u [0x%llx]: connecting to server %s %U "
1455 "port %d proto %s", session_handle, session->vpp_handle,
1456 session->transport.is_ip4 ? "IPv4" : "IPv6",
1457 format_ip46_address,
1458 &session->transport.rmt_ip, session->transport.is_ip4 ?
1459 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1460 clib_net_to_host_u16 (session->transport.rmt_port),
1461 vppcom_proto_str (session->session_type));
1464 * Send connect request and wait for reply from vpp
1466 vppcom_send_connect_sock (session);
1467 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1468 vcm->cfg.session_timeout);
1470 session = vcl_session_get (wrk, session_index);
1471 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1472 session->vpp_handle, rv ? "failed" : "succeeded");
1478 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1480 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1484 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1487 vcl_worker_t *wrk = vcl_worker_get_current ();
1488 int n_read = 0, is_nonblocking;
1489 vcl_session_t *s = 0;
1490 svm_fifo_t *rx_fifo;
1491 svm_msg_q_msg_t msg;
1496 if (PREDICT_FALSE (!buf))
1497 return VPPCOM_EINVAL;
1499 s = vcl_session_get_w_handle (wrk, session_handle);
1500 if (PREDICT_FALSE (!s || s->is_vep))
1501 return VPPCOM_EBADFD;
1503 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1505 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1506 s->session_index, s->vpp_handle, s->session_state,
1507 vppcom_session_state_str (s->session_state));
1508 return vcl_session_closed_error (s);
1511 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1512 is_ct = vcl_session_is_ct (s);
1513 mq = wrk->app_event_queue;
1514 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1517 if (svm_fifo_is_empty_cons (rx_fifo))
1521 svm_fifo_unset_event (s->rx_fifo);
1522 return VPPCOM_EWOULDBLOCK;
1524 while (svm_fifo_is_empty_cons (rx_fifo))
1526 if (vcl_session_is_closing (s))
1527 return vcl_session_closing_error (s);
1529 svm_fifo_unset_event (s->rx_fifo);
1530 svm_msg_q_lock (mq);
1531 if (svm_msg_q_is_empty (mq))
1532 svm_msg_q_wait (mq);
1534 svm_msg_q_sub_w_lock (mq, &msg);
1535 e = svm_msg_q_msg_data (mq, &msg);
1536 svm_msg_q_unlock (mq);
1537 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1538 vcl_handle_mq_event (wrk, e);
1539 svm_msg_q_free_msg (mq, &msg);
1544 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1546 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1548 if (svm_fifo_is_empty_cons (rx_fifo))
1549 svm_fifo_unset_event (s->rx_fifo);
1551 /* Cut-through sessions might request tx notifications on rx fifos */
1552 if (PREDICT_FALSE (rx_fifo->want_deq_ntf))
1554 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1555 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1556 svm_fifo_reset_has_deq_ntf (s->rx_fifo);
1559 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1560 s->vpp_handle, n_read, rx_fifo);
1566 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1568 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1572 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1574 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1578 vppcom_session_read_segments (uint32_t session_handle,
1579 vppcom_data_segments_t ds)
1581 vcl_worker_t *wrk = vcl_worker_get_current ();
1582 int n_read = 0, is_nonblocking;
1583 vcl_session_t *s = 0;
1584 svm_fifo_t *rx_fifo;
1585 svm_msg_q_msg_t msg;
1590 s = vcl_session_get_w_handle (wrk, session_handle);
1591 if (PREDICT_FALSE (!s || s->is_vep))
1592 return VPPCOM_EBADFD;
1594 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1595 return vcl_session_closed_error (s);
1597 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1598 is_ct = vcl_session_is_ct (s);
1599 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1600 rx_fifo = s->rx_fifo;
1604 svm_fifo_unset_event (s->rx_fifo);
1606 if (svm_fifo_is_empty_cons (rx_fifo))
1610 svm_fifo_unset_event (rx_fifo);
1611 return VPPCOM_EWOULDBLOCK;
1613 while (svm_fifo_is_empty_cons (rx_fifo))
1615 if (vcl_session_is_closing (s))
1616 return vcl_session_closing_error (s);
1618 svm_fifo_unset_event (rx_fifo);
1619 svm_msg_q_lock (mq);
1620 if (svm_msg_q_is_empty (mq))
1621 svm_msg_q_wait (mq);
1623 svm_msg_q_sub_w_lock (mq, &msg);
1624 e = svm_msg_q_msg_data (mq, &msg);
1625 svm_msg_q_unlock (mq);
1626 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1627 vcl_handle_mq_event (wrk, e);
1628 svm_msg_q_free_msg (mq, &msg);
1632 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1633 svm_fifo_unset_event (rx_fifo);
1639 vppcom_session_free_segments (uint32_t session_handle,
1640 vppcom_data_segments_t ds)
1642 vcl_worker_t *wrk = vcl_worker_get_current ();
1645 s = vcl_session_get_w_handle (wrk, session_handle);
1646 if (PREDICT_FALSE (!s || s->is_vep))
1649 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1653 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1655 u32 first_copy = clib_min (ds[0].len, max_bytes);
1656 clib_memcpy_fast (buf, ds[0].data, first_copy);
1657 if (first_copy < max_bytes)
1659 clib_memcpy_fast (buf + first_copy, ds[1].data,
1660 clib_min (ds[1].len, max_bytes - first_copy));
1666 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1668 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1672 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1675 vcl_worker_t *wrk = vcl_worker_get_current ();
1676 int n_write, is_nonblocking;
1677 vcl_session_t *s = 0;
1678 session_evt_type_t et;
1679 svm_msg_q_msg_t msg;
1680 svm_fifo_t *tx_fifo;
1685 if (PREDICT_FALSE (!buf))
1686 return VPPCOM_EINVAL;
1688 s = vcl_session_get_w_handle (wrk, session_handle);
1689 if (PREDICT_FALSE (!s))
1690 return VPPCOM_EBADFD;
1692 if (PREDICT_FALSE (s->is_vep))
1694 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1695 " session!", s->session_index, s->vpp_handle);
1696 return VPPCOM_EBADFD;
1699 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1701 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1702 s->session_index, s->vpp_handle, s->session_state,
1703 vppcom_session_state_str (s->session_state));
1704 return vcl_session_closed_error (s);;
1707 is_ct = vcl_session_is_ct (s);
1708 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1709 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1711 mq = wrk->app_event_queue;
1712 if (svm_fifo_is_full_prod (tx_fifo))
1716 return VPPCOM_EWOULDBLOCK;
1718 while (svm_fifo_is_full_prod (tx_fifo))
1720 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
1721 if (vcl_session_is_closing (s))
1722 return vcl_session_closing_error (s);
1723 svm_msg_q_lock (mq);
1724 if (svm_msg_q_is_empty (mq))
1725 svm_msg_q_wait (mq);
1727 svm_msg_q_sub_w_lock (mq, &msg);
1728 e = svm_msg_q_msg_data (mq, &msg);
1729 svm_msg_q_unlock (mq);
1731 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1732 vcl_handle_mq_event (wrk, e);
1733 svm_msg_q_free_msg (mq, &msg);
1737 et = SESSION_IO_EVT_TX;
1738 if (is_flush && !is_ct)
1739 et = SESSION_IO_EVT_TX_FLUSH;
1742 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1743 s->vpp_evt_q, buf, n, et,
1744 0 /* do_evt */ , SVM_Q_WAIT);
1746 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1747 0 /* do_evt */ , SVM_Q_WAIT);
1749 if (svm_fifo_set_event (s->tx_fifo))
1750 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
1753 ASSERT (n_write > 0);
1755 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1756 s->vpp_handle, n_write);
1762 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1764 return vppcom_session_write_inline (session_handle, buf, n,
1769 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1771 return vppcom_session_write_inline (session_handle, buf, n,
1775 #define vcl_fifo_rx_evt_valid_or_break(_s) \
1776 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
1778 if (!vcl_session_is_ct (_s)) \
1780 svm_fifo_unset_event (_s->rx_fifo); \
1781 if (svm_fifo_is_empty (_s->rx_fifo)) \
1784 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1786 svm_fifo_unset_event (_s->ct_rx_fifo); \
1787 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1793 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1794 unsigned long n_bits, unsigned long *read_map,
1795 unsigned long *write_map,
1796 unsigned long *except_map, u32 * bits_set)
1798 session_disconnected_msg_t *disconnected_msg;
1799 session_connected_msg_t *connected_msg;
1800 vcl_session_t *session;
1803 switch (e->event_type)
1805 case SESSION_IO_EVT_RX:
1806 sid = e->session_index;
1807 session = vcl_session_get (wrk, sid);
1810 vcl_fifo_rx_evt_valid_or_break (session);
1811 if (sid < n_bits && read_map)
1813 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1817 case SESSION_IO_EVT_TX:
1818 sid = e->session_index;
1819 session = vcl_session_get (wrk, sid);
1822 if (sid < n_bits && write_map)
1824 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
1828 case SESSION_CTRL_EVT_ACCEPTED:
1829 session = vcl_session_accepted (wrk,
1830 (session_accepted_msg_t *) e->data);
1833 sid = session->session_index;
1834 if (sid < n_bits && read_map)
1836 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1840 case SESSION_CTRL_EVT_CONNECTED:
1841 connected_msg = (session_connected_msg_t *) e->data;
1842 vcl_session_connected_handler (wrk, connected_msg);
1844 case SESSION_CTRL_EVT_DISCONNECTED:
1845 disconnected_msg = (session_disconnected_msg_t *) e->data;
1846 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
1849 sid = session->session_index;
1850 if (sid < n_bits && except_map)
1852 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1856 case SESSION_CTRL_EVT_RESET:
1857 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1858 if (sid < n_bits && except_map)
1860 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1864 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1865 vcl_session_unlisten_reply_handler (wrk, e->data);
1867 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1868 vcl_session_worker_update_reply_handler (wrk, e->data);
1870 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1871 vcl_session_req_worker_update_handler (wrk, e->data);
1874 clib_warning ("unhandled: %u", e->event_type);
1880 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1881 unsigned long n_bits, unsigned long *read_map,
1882 unsigned long *write_map, unsigned long *except_map,
1883 double time_to_wait, u32 * bits_set)
1885 svm_msg_q_msg_t *msg;
1889 svm_msg_q_lock (mq);
1890 if (svm_msg_q_is_empty (mq))
1894 svm_msg_q_unlock (mq);
1900 svm_msg_q_unlock (mq);
1903 else if (time_to_wait < 0)
1905 svm_msg_q_wait (mq);
1909 if (svm_msg_q_timedwait (mq, time_to_wait))
1911 svm_msg_q_unlock (mq);
1916 vcl_mq_dequeue_batch (wrk, mq, ~0);
1917 svm_msg_q_unlock (mq);
1919 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1921 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1922 e = svm_msg_q_msg_data (mq, msg);
1923 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
1924 except_map, bits_set);
1925 svm_msg_q_free_msg (mq, msg);
1927 vec_reset_length (wrk->mq_msg_vector);
1928 vcl_handle_pending_wrk_updates (wrk);
1933 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
1934 vcl_si_set * read_map, vcl_si_set * write_map,
1935 vcl_si_set * except_map, double time_to_wait,
1938 double wait = 0, start = 0;
1942 wait = time_to_wait;
1943 start = clib_time_now (&wrk->clib_time);
1948 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1949 write_map, except_map, wait, bits_set);
1955 wait = wait - (clib_time_now (&wrk->clib_time) - start);
1963 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
1964 vcl_si_set * read_map, vcl_si_set * write_map,
1965 vcl_si_set * except_map, double time_to_wait,
1968 vcl_mq_evt_conn_t *mqc;
1969 int __clib_unused n_read;
1973 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1974 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1975 vec_len (wrk->mq_events), time_to_wait);
1976 for (i = 0; i < n_mq_evts; i++)
1978 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1979 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1980 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1981 except_map, 0, bits_set);
1984 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1988 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
1989 vcl_si_set * except_map, double time_to_wait)
1991 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1992 vcl_worker_t *wrk = vcl_worker_get_current ();
1993 vcl_session_t *session = 0;
1996 if (n_bits && read_map)
1998 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1999 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2000 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2001 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2003 if (n_bits && write_map)
2005 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2006 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2007 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2008 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2010 if (n_bits && except_map)
2012 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2013 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2014 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2015 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2025 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2026 if (!(session = vcl_session_get (wrk, sid)))
2028 if (except_map && sid < minbits)
2029 clib_bitmap_set_no_check (except_map, sid, 1);
2033 rv = svm_fifo_is_full_prod (session->tx_fifo);
2036 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2040 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2047 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2048 if (!(session = vcl_session_get (wrk, sid)))
2050 if (except_map && sid < minbits)
2051 clib_bitmap_set_no_check (except_map, sid, 1);
2055 rv = vcl_session_read_ready (session);
2058 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2066 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2068 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2069 read_map, write_map, except_map, &bits_set);
2071 vec_reset_length (wrk->unhandled_evts_vector);
2073 if (vcm->cfg.use_mq_eventfd)
2074 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2075 time_to_wait, &bits_set);
2077 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2078 time_to_wait, &bits_set);
2084 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
2086 vcl_session_t *session;
2087 vppcom_epoll_t *vep;
2090 if (VPPCOM_DEBUG <= 2)
2093 session = vcl_session_get (wrk, vep_idx);
2094 if (PREDICT_FALSE (!session))
2096 VDBG (0, "ERROR: Invalid vep_idx (%u)!", vep_idx);
2099 if (PREDICT_FALSE (!session->is_vep))
2101 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_idx);
2104 vep = &session->vep;
2105 VDBG (0, "vep_idx (%u): Dumping epoll chain\n"
2108 " is_vep_session = %u\n"
2109 " next_sid = 0x%x (%u)\n"
2110 "}\n", vep_idx, session->is_vep, session->is_vep_session,
2111 vep->next_sh, vep->next_sh);
2113 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
2115 session = vcl_session_get (wrk, sid);
2116 if (PREDICT_FALSE (!session))
2118 VDBG (0, "ERROR: Invalid sid (%u)!", sid);
2121 if (PREDICT_FALSE (session->is_vep))
2123 VDBG (0, "ERROR: sid (%u) is a vep!", vep_idx);
2125 else if (PREDICT_FALSE (!session->is_vep_session))
2127 VDBG (0, "ERROR: session (%u) is not a vep session!", sid);
2130 vep = &session->vep;
2131 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
2132 VDBG (0, "ERROR: session (%u) vep_idx (%u) != vep_idx (%u)!",
2133 sid, session->vep.vep_sh, vep_idx);
2134 if (session->is_vep_session)
2136 VDBG (0, "vep_idx[%u]: sid 0x%x (%u)\n"
2138 " next_sid = 0x%x (%u)\n"
2139 " prev_sid = 0x%x (%u)\n"
2140 " vep_idx = 0x%x (%u)\n"
2141 " ev.events = 0x%x\n"
2142 " ev.data.u64 = 0x%llx\n"
2145 vep_idx, sid, sid, vep->next_sh, vep->next_sh, vep->prev_sh,
2146 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2147 vep->ev.data.u64, vep->et_mask);
2152 VDBG (0, "vep_idx (%u): Dump complete!\n", vep_idx);
2156 vppcom_epoll_create (void)
2158 vcl_worker_t *wrk = vcl_worker_get_current ();
2159 vcl_session_t *vep_session;
2161 vep_session = vcl_session_alloc (wrk);
2163 vep_session->is_vep = 1;
2164 vep_session->vep.vep_sh = ~0;
2165 vep_session->vep.next_sh = ~0;
2166 vep_session->vep.prev_sh = ~0;
2167 vep_session->vpp_handle = ~0;
2169 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2170 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2172 return vcl_session_handle (vep_session);
2176 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2177 struct epoll_event *event)
2179 vcl_worker_t *wrk = vcl_worker_get_current ();
2180 vcl_session_t *vep_session;
2181 vcl_session_t *session;
2184 if (vep_handle == session_handle)
2186 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2187 return VPPCOM_EINVAL;
2190 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2191 if (PREDICT_FALSE (!vep_session))
2193 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2194 return VPPCOM_EBADFD;
2196 if (PREDICT_FALSE (!vep_session->is_vep))
2198 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2199 return VPPCOM_EINVAL;
2202 ASSERT (vep_session->vep.vep_sh == ~0);
2203 ASSERT (vep_session->vep.prev_sh == ~0);
2205 session = vcl_session_get_w_handle (wrk, session_handle);
2206 if (PREDICT_FALSE (!session))
2208 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2209 return VPPCOM_EBADFD;
2211 if (PREDICT_FALSE (session->is_vep))
2213 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2214 return VPPCOM_EINVAL;
2220 if (PREDICT_FALSE (!event))
2222 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2223 return VPPCOM_EINVAL;
2225 if (vep_session->vep.next_sh != ~0)
2227 vcl_session_t *next_session;
2228 next_session = vcl_session_get_w_handle (wrk,
2229 vep_session->vep.next_sh);
2230 if (PREDICT_FALSE (!next_session))
2232 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2233 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2234 return VPPCOM_EBADFD;
2236 ASSERT (next_session->vep.prev_sh == vep_handle);
2237 next_session->vep.prev_sh = session_handle;
2239 session->vep.next_sh = vep_session->vep.next_sh;
2240 session->vep.prev_sh = vep_handle;
2241 session->vep.vep_sh = vep_handle;
2242 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2243 session->vep.ev = *event;
2244 session->is_vep = 0;
2245 session->is_vep_session = 1;
2246 vep_session->vep.next_sh = session_handle;
2248 if (session->tx_fifo)
2249 svm_fifo_add_want_deq_ntf (session->tx_fifo,
2250 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2252 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2253 vep_handle, session_handle, event->events, event->data.u64);
2254 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2258 if (PREDICT_FALSE (!event))
2260 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2264 else if (PREDICT_FALSE (!session->is_vep_session))
2266 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2270 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2272 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2273 session_handle, session->vep.vep_sh, vep_handle);
2277 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2278 session->vep.ev = *event;
2279 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2280 vep_handle, session_handle, event->events, event->data.u64);
2284 if (PREDICT_FALSE (!session->is_vep_session))
2286 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2290 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2292 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2293 session_handle, session->vep.vep_sh, vep_handle);
2298 if (session->vep.prev_sh == vep_handle)
2299 vep_session->vep.next_sh = session->vep.next_sh;
2302 vcl_session_t *prev_session;
2303 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2304 if (PREDICT_FALSE (!prev_session))
2306 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2307 session->vep.prev_sh, session_handle);
2308 return VPPCOM_EBADFD;
2310 ASSERT (prev_session->vep.next_sh == session_handle);
2311 prev_session->vep.next_sh = session->vep.next_sh;
2313 if (session->vep.next_sh != ~0)
2315 vcl_session_t *next_session;
2316 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2317 if (PREDICT_FALSE (!next_session))
2319 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2320 session->vep.next_sh, session_handle);
2321 return VPPCOM_EBADFD;
2323 ASSERT (next_session->vep.prev_sh == session_handle);
2324 next_session->vep.prev_sh = session->vep.prev_sh;
2327 memset (&session->vep, 0, sizeof (session->vep));
2328 session->vep.next_sh = ~0;
2329 session->vep.prev_sh = ~0;
2330 session->vep.vep_sh = ~0;
2331 session->is_vep_session = 0;
2333 if (session->tx_fifo)
2334 svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF);
2336 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2338 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2342 VDBG (0, "Invalid operation (%d)!", op);
2346 vep_verify_epoll_chain (wrk, vep_handle);
2353 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2354 struct epoll_event *events, u32 * num_ev)
2356 session_disconnected_msg_t *disconnected_msg;
2357 session_connected_msg_t *connected_msg;
2358 u32 sid = ~0, session_events;
2359 u64 session_evt_data = ~0;
2360 vcl_session_t *session;
2363 switch (e->event_type)
2365 case SESSION_IO_EVT_RX:
2366 sid = e->session_index;
2367 if (!(session = vcl_session_get (wrk, sid)))
2369 vcl_fifo_rx_evt_valid_or_break (session);
2370 session_events = session->vep.ev.events;
2371 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2374 events[*num_ev].events |= EPOLLIN;
2375 session_evt_data = session->vep.ev.data.u64;
2376 session->has_rx_evt = 1;
2378 case SESSION_IO_EVT_TX:
2379 sid = e->session_index;
2380 if (!(session = vcl_session_get (wrk, sid)))
2382 session_events = session->vep.ev.events;
2383 if (!(EPOLLOUT & session_events))
2386 events[*num_ev].events |= EPOLLOUT;
2387 session_evt_data = session->vep.ev.data.u64;
2388 svm_fifo_reset_has_deq_ntf (session->tx_fifo);
2390 case SESSION_CTRL_EVT_ACCEPTED:
2391 session = vcl_session_accepted (wrk,
2392 (session_accepted_msg_t *) e->data);
2396 session_events = session->vep.ev.events;
2397 if (!(EPOLLIN & session_events))
2401 events[*num_ev].events |= EPOLLIN;
2402 session_evt_data = session->vep.ev.data.u64;
2404 case SESSION_CTRL_EVT_CONNECTED:
2405 connected_msg = (session_connected_msg_t *) e->data;
2406 vcl_session_connected_handler (wrk, connected_msg);
2407 /* Generate EPOLLOUT because there's no connected event */
2408 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2409 if (!(session = vcl_session_get (wrk, sid)))
2411 session_events = session->vep.ev.events;
2412 if (!(EPOLLOUT & session_events))
2415 events[*num_ev].events |= EPOLLOUT;
2416 session_evt_data = session->vep.ev.data.u64;
2418 case SESSION_CTRL_EVT_DISCONNECTED:
2419 disconnected_msg = (session_disconnected_msg_t *) e->data;
2420 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2423 session_events = session->vep.ev.events;
2424 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2427 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2428 session_evt_data = session->vep.ev.data.u64;
2430 case SESSION_CTRL_EVT_RESET:
2431 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2432 if (!(session = vcl_session_get (wrk, sid)))
2434 session_events = session->vep.ev.events;
2435 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2438 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2439 session_evt_data = session->vep.ev.data.u64;
2441 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2442 vcl_session_unlisten_reply_handler (wrk, e->data);
2444 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2445 vcl_session_req_worker_update_handler (wrk, e->data);
2447 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2448 vcl_session_worker_update_reply_handler (wrk, e->data);
2451 VDBG (0, "unhandled: %u", e->event_type);
2457 events[*num_ev].data.u64 = session_evt_data;
2458 if (EPOLLONESHOT & session_events)
2460 session = vcl_session_get (wrk, sid);
2461 session->vep.ev.events = 0;
2468 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2469 struct epoll_event *events, u32 maxevents,
2470 double wait_for_time, u32 * num_ev)
2472 svm_msg_q_msg_t *msg;
2476 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2477 goto handle_dequeued;
2479 svm_msg_q_lock (mq);
2480 if (svm_msg_q_is_empty (mq))
2484 svm_msg_q_unlock (mq);
2487 else if (wait_for_time < 0)
2489 svm_msg_q_wait (mq);
2493 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2495 svm_msg_q_unlock (mq);
2500 ASSERT (maxevents > *num_ev);
2501 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2502 svm_msg_q_unlock (mq);
2505 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2507 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2508 e = svm_msg_q_msg_data (mq, msg);
2509 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2510 svm_msg_q_free_msg (mq, msg);
2512 vec_reset_length (wrk->mq_msg_vector);
2513 vcl_handle_pending_wrk_updates (wrk);
2518 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2519 int maxevents, u32 n_evts, double wait_for_time)
2521 double wait = 0, start = 0, now;
2525 wait = wait_for_time;
2526 start = clib_time_now (&wrk->clib_time);
2531 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2538 now = clib_time_now (&wrk->clib_time);
2539 wait -= now - start;
2548 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2549 int maxevents, u32 n_evts, double wait_for_time)
2551 vcl_mq_evt_conn_t *mqc;
2552 int __clib_unused n_read;
2556 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2558 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2559 vec_len (wrk->mq_events), wait_for_time);
2560 for (i = 0; i < n_mq_evts; i++)
2562 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2563 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2564 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2566 if (!n_evts && n_mq_evts > 0)
2569 return (int) n_evts;
2573 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2574 int maxevents, double wait_for_time)
2576 vcl_worker_t *wrk = vcl_worker_get_current ();
2577 vcl_session_t *vep_session;
2581 if (PREDICT_FALSE (maxevents <= 0))
2583 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2584 return VPPCOM_EINVAL;
2587 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2589 return VPPCOM_EBADFD;
2591 if (PREDICT_FALSE (!vep_session->is_vep))
2593 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2594 return VPPCOM_EINVAL;
2597 memset (events, 0, sizeof (*events) * maxevents);
2599 if (vec_len (wrk->unhandled_evts_vector))
2601 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2603 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2605 if (n_evts == maxevents)
2607 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
2611 vec_reset_length (wrk->unhandled_evts_vector);
2614 if (vcm->cfg.use_mq_eventfd)
2615 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2618 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2623 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2624 void *buffer, uint32_t * buflen)
2626 vcl_worker_t *wrk = vcl_worker_get_current ();
2627 vcl_session_t *session;
2629 u32 *flags = buffer, tmp_flags = 0;
2630 vppcom_endpt_t *ep = buffer;
2632 session = vcl_session_get_w_handle (wrk, session_handle);
2634 return VPPCOM_EBADFD;
2638 case VPPCOM_ATTR_GET_NREAD:
2639 rv = vcl_session_read_ready (session);
2640 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
2644 case VPPCOM_ATTR_GET_NWRITE:
2645 rv = vcl_session_write_ready (session);
2646 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
2650 case VPPCOM_ATTR_GET_FLAGS:
2651 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2653 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2654 VCL_SESS_ATTR_NONBLOCK));
2655 *buflen = sizeof (*flags);
2656 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
2657 "is_nonblocking = %u", session_handle, *flags,
2658 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2664 case VPPCOM_ATTR_SET_FLAGS:
2665 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2667 if (*flags & O_NONBLOCK)
2668 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2670 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2672 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
2673 " is_nonblocking = %u", session_handle, *flags,
2674 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2680 case VPPCOM_ATTR_GET_PEER_ADDR:
2681 if (PREDICT_TRUE (buffer && buflen &&
2682 (*buflen >= sizeof (*ep)) && ep->ip))
2684 ep->is_ip4 = session->transport.is_ip4;
2685 ep->port = session->transport.rmt_port;
2686 if (session->transport.is_ip4)
2687 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2688 sizeof (ip4_address_t));
2690 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2691 sizeof (ip6_address_t));
2692 *buflen = sizeof (*ep);
2693 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
2694 "addr = %U, port %u", session_handle, ep->is_ip4,
2695 format_ip46_address, &session->transport.rmt_ip,
2696 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2697 clib_net_to_host_u16 (ep->port));
2703 case VPPCOM_ATTR_GET_LCL_ADDR:
2704 if (PREDICT_TRUE (buffer && buflen &&
2705 (*buflen >= sizeof (*ep)) && ep->ip))
2707 ep->is_ip4 = session->transport.is_ip4;
2708 ep->port = session->transport.lcl_port;
2709 if (session->transport.is_ip4)
2710 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2711 sizeof (ip4_address_t));
2713 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2714 sizeof (ip6_address_t));
2715 *buflen = sizeof (*ep);
2716 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2717 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2718 &session->transport.lcl_ip,
2719 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2720 clib_net_to_host_u16 (ep->port));
2726 case VPPCOM_ATTR_GET_LIBC_EPFD:
2727 rv = session->libc_epfd;
2728 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
2731 case VPPCOM_ATTR_SET_LIBC_EPFD:
2732 if (PREDICT_TRUE (buffer && buflen &&
2733 (*buflen == sizeof (session->libc_epfd))))
2735 session->libc_epfd = *(int *) buffer;
2736 *buflen = sizeof (session->libc_epfd);
2738 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
2739 session->libc_epfd, *buflen);
2745 case VPPCOM_ATTR_GET_PROTOCOL:
2746 if (buffer && buflen && (*buflen >= sizeof (int)))
2748 *(int *) buffer = session->session_type;
2749 *buflen = sizeof (int);
2751 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2752 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
2758 case VPPCOM_ATTR_GET_LISTEN:
2759 if (buffer && buflen && (*buflen >= sizeof (int)))
2761 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2762 VCL_SESS_ATTR_LISTEN);
2763 *buflen = sizeof (int);
2765 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
2772 case VPPCOM_ATTR_GET_ERROR:
2773 if (buffer && buflen && (*buflen >= sizeof (int)))
2775 *(int *) buffer = 0;
2776 *buflen = sizeof (int);
2778 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2779 *(int *) buffer, *buflen);
2785 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2786 if (buffer && buflen && (*buflen >= sizeof (u32)))
2790 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2791 session->tx_fifo ? session->tx_fifo->nitems :
2792 vcm->cfg.tx_fifo_size);
2793 *buflen = sizeof (u32);
2795 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
2796 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
2803 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2804 if (buffer && buflen && (*buflen == sizeof (u32)))
2807 session->sndbuf_size = *(u32 *) buffer;
2808 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
2809 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
2816 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2817 if (buffer && buflen && (*buflen >= sizeof (u32)))
2821 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2822 session->rx_fifo ? session->rx_fifo->nitems :
2823 vcm->cfg.rx_fifo_size);
2824 *buflen = sizeof (u32);
2826 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
2827 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
2833 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2834 if (buffer && buflen && (*buflen == sizeof (u32)))
2837 session->rcvbuf_size = *(u32 *) buffer;
2838 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
2839 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
2846 case VPPCOM_ATTR_GET_REUSEADDR:
2847 if (buffer && buflen && (*buflen >= sizeof (int)))
2850 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2851 VCL_SESS_ATTR_REUSEADDR);
2852 *buflen = sizeof (int);
2854 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
2855 *(int *) buffer, *buflen);
2861 case VPPCOM_ATTR_SET_REUSEADDR:
2862 if (buffer && buflen && (*buflen == sizeof (int)) &&
2863 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2866 if (*(int *) buffer)
2867 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2869 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2871 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
2872 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
2879 case VPPCOM_ATTR_GET_REUSEPORT:
2880 if (buffer && buflen && (*buflen >= sizeof (int)))
2883 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2884 VCL_SESS_ATTR_REUSEPORT);
2885 *buflen = sizeof (int);
2887 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
2888 *(int *) buffer, *buflen);
2894 case VPPCOM_ATTR_SET_REUSEPORT:
2895 if (buffer && buflen && (*buflen == sizeof (int)) &&
2896 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2899 if (*(int *) buffer)
2900 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2902 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2904 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
2905 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
2912 case VPPCOM_ATTR_GET_BROADCAST:
2913 if (buffer && buflen && (*buflen >= sizeof (int)))
2916 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2917 VCL_SESS_ATTR_BROADCAST);
2918 *buflen = sizeof (int);
2920 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
2921 *(int *) buffer, *buflen);
2927 case VPPCOM_ATTR_SET_BROADCAST:
2928 if (buffer && buflen && (*buflen == sizeof (int)))
2931 if (*(int *) buffer)
2932 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2934 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2936 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
2937 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
2944 case VPPCOM_ATTR_GET_V6ONLY:
2945 if (buffer && buflen && (*buflen >= sizeof (int)))
2948 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2949 VCL_SESS_ATTR_V6ONLY);
2950 *buflen = sizeof (int);
2952 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
2953 *(int *) buffer, *buflen);
2959 case VPPCOM_ATTR_SET_V6ONLY:
2960 if (buffer && buflen && (*buflen == sizeof (int)))
2963 if (*(int *) buffer)
2964 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2966 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2968 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
2969 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
2976 case VPPCOM_ATTR_GET_KEEPALIVE:
2977 if (buffer && buflen && (*buflen >= sizeof (int)))
2980 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2981 VCL_SESS_ATTR_KEEPALIVE);
2982 *buflen = sizeof (int);
2984 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
2985 *(int *) buffer, *buflen);
2991 case VPPCOM_ATTR_SET_KEEPALIVE:
2992 if (buffer && buflen && (*buflen == sizeof (int)))
2995 if (*(int *) buffer)
2996 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2998 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3000 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3001 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3008 case VPPCOM_ATTR_GET_TCP_NODELAY:
3009 if (buffer && buflen && (*buflen >= sizeof (int)))
3012 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3013 VCL_SESS_ATTR_TCP_NODELAY);
3014 *buflen = sizeof (int);
3016 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3017 *(int *) buffer, *buflen);
3023 case VPPCOM_ATTR_SET_TCP_NODELAY:
3024 if (buffer && buflen && (*buflen == sizeof (int)))
3027 if (*(int *) buffer)
3028 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3030 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3032 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3033 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3040 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3041 if (buffer && buflen && (*buflen >= sizeof (int)))
3044 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3045 VCL_SESS_ATTR_TCP_KEEPIDLE);
3046 *buflen = sizeof (int);
3048 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3049 *(int *) buffer, *buflen);
3055 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3056 if (buffer && buflen && (*buflen == sizeof (int)))
3059 if (*(int *) buffer)
3060 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3062 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3064 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3065 VCL_SESS_ATTR_TEST (session->attr,
3066 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3072 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3073 if (buffer && buflen && (*buflen >= sizeof (int)))
3076 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3077 VCL_SESS_ATTR_TCP_KEEPINTVL);
3078 *buflen = sizeof (int);
3080 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3081 *(int *) buffer, *buflen);
3087 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3088 if (buffer && buflen && (*buflen == sizeof (int)))
3091 if (*(int *) buffer)
3092 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3094 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3096 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3097 VCL_SESS_ATTR_TEST (session->attr,
3098 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3104 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3105 if (buffer && buflen && (*buflen >= sizeof (u32)))
3108 *(u32 *) buffer = session->user_mss;
3109 *buflen = sizeof (int);
3111 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3112 *(int *) buffer, *buflen);
3118 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3119 if (buffer && buflen && (*buflen == sizeof (u32)))
3122 session->user_mss = *(u32 *) buffer;
3124 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3125 session->user_mss, *buflen);
3131 case VPPCOM_ATTR_SET_SHUT:
3132 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3133 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3134 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3135 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3138 case VPPCOM_ATTR_GET_SHUT:
3139 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3141 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3144 *(int *) buffer = SHUT_RD;
3145 else if (tmp_flags == 2)
3146 *(int *) buffer = SHUT_WR;
3147 else if (tmp_flags == 3)
3148 *(int *) buffer = SHUT_RDWR;
3149 *buflen = sizeof (int);
3160 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3161 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3163 vcl_worker_t *wrk = vcl_worker_get_current ();
3165 vcl_session_t *session = 0;
3169 session = vcl_session_get_w_handle (wrk, session_handle);
3170 if (PREDICT_FALSE (!session))
3172 VDBG (0, "sh 0x%llx is closed!", session_handle);
3173 return VPPCOM_EBADFD;
3175 ep->is_ip4 = session->transport.is_ip4;
3176 ep->port = session->transport.rmt_port;
3180 rv = vppcom_session_read (session_handle, buffer, buflen);
3181 else if (flags & MSG_PEEK)
3182 rv = vppcom_session_peek (session_handle, buffer, buflen);
3185 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3186 return VPPCOM_EAFNOSUPPORT;
3191 if (session->transport.is_ip4)
3192 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3193 sizeof (ip4_address_t));
3195 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3196 sizeof (ip6_address_t));
3203 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3204 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3207 return VPPCOM_EINVAL;
3212 return VPPCOM_EINVAL;
3217 // TBD check the flags and do the right thing
3218 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3221 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3225 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3227 vcl_worker_t *wrk = vcl_worker_get_current ();
3228 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3229 u32 i, keep_trying = 1;
3230 svm_msg_q_msg_t msg;
3234 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3237 return VPPCOM_EFAULT;
3241 vcl_session_t *session;
3243 /* Dequeue all events and drop all unhandled io events */
3244 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3246 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3247 vcl_handle_mq_event (wrk, e);
3248 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3250 vec_reset_length (wrk->unhandled_evts_vector);
3252 for (i = 0; i < n_sids; i++)
3254 session = vcl_session_get (wrk, vp[i].sh);
3257 vp[i].revents = POLLHUP;
3264 if (POLLIN & vp[i].events)
3266 rv = vcl_session_read_ready (session);
3269 vp[i].revents |= POLLIN;
3276 case VPPCOM_ECONNRESET:
3277 vp[i].revents = POLLHUP;
3281 vp[i].revents = POLLERR;
3288 if (POLLOUT & vp[i].events)
3290 rv = vcl_session_write_ready (session);
3293 vp[i].revents |= POLLOUT;
3300 case VPPCOM_ECONNRESET:
3301 vp[i].revents = POLLHUP;
3305 vp[i].revents = POLLERR;
3312 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3314 vp[i].revents = POLLNVAL;
3318 if (wait_for_time != -1)
3319 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3321 while ((num_ev == 0) && keep_trying);
3327 vppcom_mq_epoll_fd (void)
3329 vcl_worker_t *wrk = vcl_worker_get_current ();
3330 return wrk->mqs_epfd;
3334 vppcom_session_index (vcl_session_handle_t session_handle)
3336 return session_handle & 0xFFFFFF;
3340 vppcom_session_worker (vcl_session_handle_t session_handle)
3342 return session_handle >> 24;
3346 vppcom_worker_register (void)
3348 if (!vcl_worker_alloc_and_init ())
3349 return VPPCOM_EEXIST;
3351 if (vcl_worker_set_bapi ())
3352 return VPPCOM_EEXIST;
3354 if (vcl_worker_register_with_vpp ())
3355 return VPPCOM_EEXIST;
3361 vppcom_worker_unregister (void)
3363 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3364 vcl_set_worker_index (~0);
3368 vppcom_worker_index (void)
3370 return vcl_get_worker_index ();
3374 vppcom_worker_mqs_epfd (void)
3376 vcl_worker_t *wrk = vcl_worker_get_current ();
3377 if (!vcm->cfg.use_mq_eventfd)
3379 return wrk->mqs_epfd;
3383 * fd.io coding-style-patch-verification: ON
3386 * eval: (c-set-style "gnu")