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 vcl_session_t *session = 0;
828 session = vcl_session_get_w_handle (wrk, session_handle);
830 return VPPCOM_EBADFD;
832 vpp_handle = session->vpp_handle;
833 session->vpp_handle = ~0;
834 session->session_state = STATE_DISCONNECT;
836 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
838 vcl_evt (VCL_EVT_UNBIND, session);
839 vppcom_send_unbind_sock (wrk, vpp_handle);
845 vppcom_session_disconnect (u32 session_handle)
847 vcl_worker_t *wrk = vcl_worker_get_current ();
848 svm_msg_q_t *vpp_evt_q;
849 vcl_session_t *session;
850 vcl_session_state_t state;
853 session = vcl_session_get_w_handle (wrk, session_handle);
855 return VPPCOM_EBADFD;
857 vpp_handle = session->vpp_handle;
858 state = session->session_state;
860 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
861 vpp_handle, state, vppcom_session_state_str (state));
863 if (PREDICT_FALSE (state & STATE_LISTEN))
865 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
866 return VPPCOM_EBADFD;
869 if (state & STATE_VPP_CLOSING)
871 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
872 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
874 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
875 session->session_index, vpp_handle);
879 VDBG (1, "session %u [0x%llx]: sending disconnect...",
880 session->session_index, vpp_handle);
881 vppcom_send_disconnect_session (vpp_handle);
890 * Notify vpp of the disconnect and mark the worker as free. If we're the
891 * last worker, do a full cleanup otherwise, since we're probably a forked
892 * child, avoid syscalls as much as possible. We might've lost privileges.
895 vppcom_app_exit (void)
897 if (!pool_elts (vcm->workers))
899 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
900 vcl_set_worker_index (~0);
902 if (vec_len (vcm->workers) == 1)
903 vl_client_disconnect_from_vlib ();
905 vl_client_send_disconnect (1 /* vpp should cleanup */ );
909 * VPPCOM Public API functions
912 vppcom_app_create (char *app_name)
914 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
919 VDBG (1, "already initialized");
920 return VPPCOM_EEXIST;
924 vppcom_cfg (&vcm->cfg);
927 vcm->main_cpu = pthread_self ();
928 vcm->main_pid = getpid ();
929 vcm->app_name = format (0, "%s", app_name);
930 vppcom_init_error_string_table ();
931 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
932 20 /* timeout in secs */ );
933 pool_alloc (vcm->workers, vcl_cfg->max_workers);
934 clib_spinlock_init (&vcm->workers_lock);
935 clib_rwlock_init (&vcm->segment_table_lock);
936 atexit (vppcom_app_exit);
938 /* Allocate default worker */
939 vcl_worker_alloc_and_init ();
941 /* API hookup and connect to VPP */
942 vppcom_api_hookup ();
944 vcm->app_state = STATE_APP_START;
945 rv = vppcom_connect_to_vpp (app_name);
948 VERR ("couldn't connect to VPP!");
951 VDBG (0, "sending session enable");
952 rv = vppcom_app_session_enable ();
955 VERR ("vppcom_app_session_enable() failed!");
959 VDBG (0, "sending app attach");
960 rv = vppcom_app_attach ();
963 VERR ("vppcom_app_attach() failed!");
967 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
968 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
974 vppcom_app_destroy (void)
977 f64 orig_app_timeout;
979 if (!pool_elts (vcm->workers))
982 vcl_evt (VCL_EVT_DETACH, vcm);
984 if (pool_elts (vcm->workers) == 1)
986 vppcom_app_send_detach ();
987 orig_app_timeout = vcm->cfg.app_timeout;
988 vcm->cfg.app_timeout = 2.0;
989 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
990 vcm->cfg.app_timeout = orig_app_timeout;
991 if (PREDICT_FALSE (rv))
992 VDBG (0, "application detach timed out! returning %d (%s)", rv,
993 vppcom_retval_str (rv));
994 vec_free (vcm->app_name);
995 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
999 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1002 vcl_set_worker_index (~0);
1003 vcl_elog_stop (vcm);
1004 vl_client_disconnect_from_vlib ();
1008 vppcom_session_create (u8 proto, u8 is_nonblocking)
1010 vcl_worker_t *wrk = vcl_worker_get_current ();
1011 vcl_session_t *session;
1013 session = vcl_session_alloc (wrk);
1015 session->session_type = proto;
1016 session->session_state = STATE_START;
1017 session->vpp_handle = ~0;
1018 session->is_dgram = proto == VPPCOM_PROTO_UDP;
1021 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1023 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1024 is_nonblocking, session_index);
1026 VDBG (0, "created session %u", session->session_index);
1028 return vcl_session_handle (session);
1032 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1033 vcl_session_handle_t sh, u8 do_disconnect)
1035 vcl_session_state_t state;
1036 u32 next_sh, vep_sh;
1041 is_vep = session->is_vep;
1042 next_sh = session->vep.next_sh;
1043 vep_sh = session->vep.vep_sh;
1044 state = session->session_state;
1045 vpp_handle = session->vpp_handle;
1047 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1051 while (next_sh != ~0)
1053 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1054 if (PREDICT_FALSE (rv < 0))
1055 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1056 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1057 vppcom_retval_str (rv));
1059 next_sh = session->vep.next_sh;
1064 if (session->is_vep_session)
1066 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1068 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1069 "failed! rv %d (%s)", session->session_index, vpp_handle,
1070 vep_sh, rv, vppcom_retval_str (rv));
1075 VDBG (1, "session %u [0x%llx] disconnect skipped",
1076 session->session_index, vpp_handle);
1080 if (state & STATE_LISTEN)
1082 rv = vppcom_session_unbind (sh);
1083 if (PREDICT_FALSE (rv < 0))
1084 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1085 "rv %d (%s)", session->session_index, vpp_handle, rv,
1086 vppcom_retval_str (rv));
1089 else if (state & STATE_OPEN)
1091 rv = vppcom_session_disconnect (sh);
1092 if (PREDICT_FALSE (rv < 0))
1093 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1094 " rv %d (%s)", session->session_index, vpp_handle,
1095 rv, vppcom_retval_str (rv));
1097 else if (state == STATE_DISCONNECT)
1099 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1100 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1101 session->vpp_handle, 0);
1105 VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
1108 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1109 vcl_session_free (wrk, session);
1110 vcl_evt (VCL_EVT_CLOSE, session, rv);
1116 vppcom_session_close (uint32_t session_handle)
1118 vcl_worker_t *wrk = vcl_worker_get_current ();
1119 vcl_session_t *session;
1121 session = vcl_session_get_w_handle (wrk, session_handle);
1123 return VPPCOM_EBADFD;
1124 return vcl_session_cleanup (wrk, session, session_handle,
1125 1 /* do_disconnect */ );
1129 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1131 vcl_worker_t *wrk = vcl_worker_get_current ();
1132 vcl_session_t *session = 0;
1135 return VPPCOM_EINVAL;
1137 session = vcl_session_get_w_handle (wrk, session_handle);
1139 return VPPCOM_EBADFD;
1141 if (session->is_vep)
1143 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1144 session->session_index);
1145 return VPPCOM_EBADFD;
1148 session->transport.is_ip4 = ep->is_ip4;
1150 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1151 sizeof (ip4_address_t));
1153 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1154 sizeof (ip6_address_t));
1155 session->transport.lcl_port = ep->port;
1157 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1158 "proto %s", session->session_index, session_handle,
1159 session->transport.is_ip4 ? "IPv4" : "IPv6",
1160 format_ip46_address, &session->transport.lcl_ip,
1161 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1162 clib_net_to_host_u16 (session->transport.lcl_port),
1163 vppcom_proto_str (session->session_type));
1164 vcl_evt (VCL_EVT_BIND, session);
1166 if (session->session_type == VPPCOM_PROTO_UDP)
1167 vppcom_session_listen (session_handle, 10);
1173 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1175 vcl_worker_t *wrk = vcl_worker_get_current ();
1176 vcl_session_t *listen_session = 0;
1177 u64 listen_vpp_handle;
1180 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1181 if (!listen_session || listen_session->is_vep)
1182 return VPPCOM_EBADFD;
1184 if (q_len == 0 || q_len == ~0)
1185 q_len = vcm->cfg.listen_queue_size;
1187 listen_vpp_handle = listen_session->vpp_handle;
1188 if (listen_session->session_state & STATE_LISTEN)
1190 VDBG (0, "session %u [0x%llx]: already in listen state!",
1191 listen_sh, listen_vpp_handle);
1195 VDBG (0, "session %u [0x%llx]: sending vpp listen request...",
1196 listen_sh, listen_vpp_handle);
1199 * Send listen request to vpp and wait for reply
1201 vppcom_send_bind_sock (listen_session);
1202 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1204 vcm->cfg.session_timeout);
1206 if (PREDICT_FALSE (rv))
1208 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1209 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1210 listen_sh, listen_session->vpp_handle, rv,
1211 vppcom_retval_str (rv));
1219 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1223 vcl_worker_t *wrk = vcl_worker_get_current ();
1224 vcl_session_t *session = 0;
1226 session = vcl_session_get_w_handle (wrk, session_handle);
1228 return VPPCOM_EBADFD;
1230 if (cert_len == 0 || cert_len == ~0)
1231 return VPPCOM_EBADFD;
1234 * Send listen request to vpp and wait for reply
1236 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1243 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1247 vcl_worker_t *wrk = vcl_worker_get_current ();
1248 vcl_session_t *session = 0;
1250 session = vcl_session_get_w_handle (wrk, session_handle);
1252 return VPPCOM_EBADFD;
1254 if (key_len == 0 || key_len == ~0)
1255 return VPPCOM_EBADFD;
1258 * Send listen request to vpp and wait for reply
1260 vppcom_send_application_tls_key_add (session, key, key_len);
1268 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1272 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1274 return VPPCOM_EBADFD;
1277 if (ls->session_state != STATE_LISTEN)
1279 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1280 " (%s)", ls->vpp_handle, ls->session_index, ls->session_state,
1281 vppcom_session_state_str (ls->session_state));
1282 return VPPCOM_EBADFD;
1288 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1291 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1292 vcl_worker_t *wrk = vcl_worker_get_current ();
1293 session_accepted_msg_t accepted_msg;
1294 vcl_session_t *listen_session = 0;
1295 vcl_session_t *client_session = 0;
1296 vcl_session_msg_t *evt;
1297 svm_msg_q_msg_t msg;
1302 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1303 if (!listen_session)
1304 return VPPCOM_EBADFD;
1306 listen_session_index = listen_session->session_index;
1307 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1310 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1312 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1313 accept_flags = evt->flags;
1314 accepted_msg = evt->accepted_msg;
1318 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1319 VCL_SESS_ATTR_NONBLOCK);
1320 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1321 return VPPCOM_EAGAIN;
1325 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1326 return VPPCOM_EAGAIN;
1328 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1329 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1331 VDBG (0, "discarded event: %u", e->event_type);
1332 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1335 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1336 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1342 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1343 listen_session_index);
1344 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1345 return VPPCOM_ECONNABORTED;
1347 listen_session = vcl_session_get (wrk, listen_session_index);
1348 client_session = vcl_session_get (wrk, client_session_index);
1350 if (flags & O_NONBLOCK)
1351 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1353 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1354 " flags %d, is_nonblocking %u", listen_session->session_index,
1355 listen_session->vpp_handle, client_session_index,
1356 client_session->vpp_handle, flags,
1357 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1361 ep->is_ip4 = client_session->transport.is_ip4;
1362 ep->port = client_session->transport.rmt_port;
1363 if (client_session->transport.is_ip4)
1364 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1365 sizeof (ip4_address_t));
1367 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1368 sizeof (ip6_address_t));
1371 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1372 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1373 client_session_index, client_session->vpp_handle,
1374 format_ip46_address, &client_session->transport.rmt_ip,
1375 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1376 clib_net_to_host_u16 (client_session->transport.rmt_port),
1377 format_ip46_address, &client_session->transport.lcl_ip,
1378 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1379 clib_net_to_host_u16 (client_session->transport.lcl_port));
1380 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1381 client_session_index);
1384 * Session might have been closed already
1388 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1389 client_session->session_state = STATE_VPP_CLOSING;
1390 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1391 client_session->session_state = STATE_DISCONNECT;
1393 return vcl_session_handle (client_session);
1397 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1399 vcl_worker_t *wrk = vcl_worker_get_current ();
1400 vcl_session_t *session = 0;
1404 session = vcl_session_get_w_handle (wrk, session_handle);
1406 return VPPCOM_EBADFD;
1407 session_index = session->session_index;
1409 if (PREDICT_FALSE (session->is_vep))
1411 VDBG (0, "ERROR: cannot connect epoll session %u!",
1412 session->session_index);
1413 return VPPCOM_EBADFD;
1416 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1418 VDBG (0, "session handle %u [0x%llx]: session already "
1419 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1420 session_handle, session->vpp_handle,
1421 session->transport.is_ip4 ? "IPv4" : "IPv6",
1422 format_ip46_address,
1423 &session->transport.rmt_ip, session->transport.is_ip4 ?
1424 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1425 clib_net_to_host_u16 (session->transport.rmt_port),
1426 vppcom_proto_str (session->session_type), session->session_state,
1427 vppcom_session_state_str (session->session_state));
1431 session->transport.is_ip4 = server_ep->is_ip4;
1432 if (session->transport.is_ip4)
1433 clib_memcpy_fast (&session->transport.rmt_ip.ip4, server_ep->ip,
1434 sizeof (ip4_address_t));
1436 clib_memcpy_fast (&session->transport.rmt_ip.ip6, server_ep->ip,
1437 sizeof (ip6_address_t));
1438 session->transport.rmt_port = server_ep->port;
1440 VDBG (0, "session handle %u [0x%llx]: connecting to server %s %U "
1441 "port %d proto %s", session_handle, session->vpp_handle,
1442 session->transport.is_ip4 ? "IPv4" : "IPv6",
1443 format_ip46_address,
1444 &session->transport.rmt_ip, session->transport.is_ip4 ?
1445 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1446 clib_net_to_host_u16 (session->transport.rmt_port),
1447 vppcom_proto_str (session->session_type));
1450 * Send connect request and wait for reply from vpp
1452 vppcom_send_connect_sock (session);
1453 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1454 vcm->cfg.session_timeout);
1456 session = vcl_session_get (wrk, session_index);
1457 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1458 session->vpp_handle, rv ? "failed" : "succeeded");
1464 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1466 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1470 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1473 vcl_worker_t *wrk = vcl_worker_get_current ();
1474 int n_read = 0, is_nonblocking;
1475 vcl_session_t *s = 0;
1476 svm_fifo_t *rx_fifo;
1477 svm_msg_q_msg_t msg;
1482 if (PREDICT_FALSE (!buf))
1483 return VPPCOM_EINVAL;
1485 s = vcl_session_get_w_handle (wrk, session_handle);
1486 if (PREDICT_FALSE (!s || s->is_vep))
1487 return VPPCOM_EBADFD;
1489 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1491 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1492 s->session_index, s->vpp_handle, s->session_state,
1493 vppcom_session_state_str (s->session_state));
1494 return vcl_session_closed_error (s);
1497 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1498 is_ct = vcl_session_is_ct (s);
1499 mq = wrk->app_event_queue;
1500 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1503 if (svm_fifo_is_empty_cons (rx_fifo))
1507 svm_fifo_unset_event (s->rx_fifo);
1508 return VPPCOM_EWOULDBLOCK;
1510 while (svm_fifo_is_empty_cons (rx_fifo))
1512 if (vcl_session_is_closing (s))
1513 return vcl_session_closing_error (s);
1515 svm_fifo_unset_event (s->rx_fifo);
1516 svm_msg_q_lock (mq);
1517 if (svm_msg_q_is_empty (mq))
1518 svm_msg_q_wait (mq);
1520 svm_msg_q_sub_w_lock (mq, &msg);
1521 e = svm_msg_q_msg_data (mq, &msg);
1522 svm_msg_q_unlock (mq);
1523 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1524 vcl_handle_mq_event (wrk, e);
1525 svm_msg_q_free_msg (mq, &msg);
1530 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1532 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1534 if (svm_fifo_is_empty_cons (rx_fifo))
1535 svm_fifo_unset_event (s->rx_fifo);
1537 /* Cut-through sessions might request tx notifications on rx fifos */
1538 if (PREDICT_FALSE (rx_fifo->want_tx_ntf))
1540 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1541 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1542 svm_fifo_reset_tx_ntf (s->rx_fifo);
1545 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1546 s->vpp_handle, n_read, rx_fifo);
1552 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1554 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1558 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1560 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1564 vppcom_session_read_segments (uint32_t session_handle,
1565 vppcom_data_segments_t ds)
1567 vcl_worker_t *wrk = vcl_worker_get_current ();
1568 int n_read = 0, is_nonblocking;
1569 vcl_session_t *s = 0;
1570 svm_fifo_t *rx_fifo;
1571 svm_msg_q_msg_t msg;
1576 s = vcl_session_get_w_handle (wrk, session_handle);
1577 if (PREDICT_FALSE (!s || s->is_vep))
1578 return VPPCOM_EBADFD;
1580 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1581 return vcl_session_closed_error (s);
1583 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1584 is_ct = vcl_session_is_ct (s);
1585 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1586 rx_fifo = s->rx_fifo;
1590 svm_fifo_unset_event (s->rx_fifo);
1592 if (svm_fifo_is_empty_cons (rx_fifo))
1596 svm_fifo_unset_event (rx_fifo);
1597 return VPPCOM_EWOULDBLOCK;
1599 while (svm_fifo_is_empty_cons (rx_fifo))
1601 if (vcl_session_is_closing (s))
1602 return vcl_session_closing_error (s);
1604 svm_fifo_unset_event (rx_fifo);
1605 svm_msg_q_lock (mq);
1606 if (svm_msg_q_is_empty (mq))
1607 svm_msg_q_wait (mq);
1609 svm_msg_q_sub_w_lock (mq, &msg);
1610 e = svm_msg_q_msg_data (mq, &msg);
1611 svm_msg_q_unlock (mq);
1612 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1613 vcl_handle_mq_event (wrk, e);
1614 svm_msg_q_free_msg (mq, &msg);
1618 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
1619 svm_fifo_unset_event (rx_fifo);
1625 vppcom_session_free_segments (uint32_t session_handle,
1626 vppcom_data_segments_t ds)
1628 vcl_worker_t *wrk = vcl_worker_get_current ();
1631 s = vcl_session_get_w_handle (wrk, session_handle);
1632 if (PREDICT_FALSE (!s || s->is_vep))
1635 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
1639 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1641 u32 first_copy = clib_min (ds[0].len, max_bytes);
1642 clib_memcpy_fast (buf, ds[0].data, first_copy);
1643 if (first_copy < max_bytes)
1645 clib_memcpy_fast (buf + first_copy, ds[1].data,
1646 clib_min (ds[1].len, max_bytes - first_copy));
1652 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1654 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1658 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1661 vcl_worker_t *wrk = vcl_worker_get_current ();
1662 int n_write, is_nonblocking;
1663 vcl_session_t *s = 0;
1664 session_evt_type_t et;
1665 svm_msg_q_msg_t msg;
1666 svm_fifo_t *tx_fifo;
1671 if (PREDICT_FALSE (!buf))
1672 return VPPCOM_EINVAL;
1674 s = vcl_session_get_w_handle (wrk, session_handle);
1675 if (PREDICT_FALSE (!s))
1676 return VPPCOM_EBADFD;
1678 if (PREDICT_FALSE (s->is_vep))
1680 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1681 " session!", s->session_index, s->vpp_handle);
1682 return VPPCOM_EBADFD;
1685 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1687 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1688 s->session_index, s->vpp_handle, s->session_state,
1689 vppcom_session_state_str (s->session_state));
1690 return vcl_session_closed_error (s);;
1693 is_ct = vcl_session_is_ct (s);
1694 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1695 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1697 mq = wrk->app_event_queue;
1698 if (svm_fifo_is_full_prod (tx_fifo))
1702 return VPPCOM_EWOULDBLOCK;
1704 while (svm_fifo_is_full_prod (tx_fifo))
1706 svm_fifo_add_want_tx_ntf (tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
1707 if (vcl_session_is_closing (s))
1708 return vcl_session_closing_error (s);
1709 svm_msg_q_lock (mq);
1710 if (svm_msg_q_is_empty (mq))
1711 svm_msg_q_wait (mq);
1713 svm_msg_q_sub_w_lock (mq, &msg);
1714 e = svm_msg_q_msg_data (mq, &msg);
1715 svm_msg_q_unlock (mq);
1717 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1718 vcl_handle_mq_event (wrk, e);
1719 svm_msg_q_free_msg (mq, &msg);
1723 et = SESSION_IO_EVT_TX;
1724 if (is_flush && !is_ct)
1725 et = SESSION_IO_EVT_TX_FLUSH;
1728 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1729 s->vpp_evt_q, buf, n, et,
1730 0 /* do_evt */ , SVM_Q_WAIT);
1732 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1733 0 /* do_evt */ , SVM_Q_WAIT);
1735 if (svm_fifo_set_event (s->tx_fifo))
1736 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
1739 ASSERT (n_write > 0);
1741 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1742 s->vpp_handle, n_write);
1748 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1750 return vppcom_session_write_inline (session_handle, buf, n,
1755 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1757 return vppcom_session_write_inline (session_handle, buf, n,
1761 #define vcl_fifo_rx_evt_valid_or_break(_s) \
1762 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
1764 if (!vcl_session_is_ct (_s)) \
1766 svm_fifo_unset_event (_s->rx_fifo); \
1767 if (svm_fifo_is_empty (_s->rx_fifo)) \
1770 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1772 svm_fifo_unset_event (_s->ct_rx_fifo); \
1773 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1779 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1780 unsigned long n_bits, unsigned long *read_map,
1781 unsigned long *write_map,
1782 unsigned long *except_map, u32 * bits_set)
1784 session_disconnected_msg_t *disconnected_msg;
1785 session_connected_msg_t *connected_msg;
1786 vcl_session_t *session;
1789 switch (e->event_type)
1791 case SESSION_IO_EVT_RX:
1792 sid = e->session_index;
1793 session = vcl_session_get (wrk, sid);
1796 vcl_fifo_rx_evt_valid_or_break (session);
1797 if (sid < n_bits && read_map)
1799 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1803 case SESSION_IO_EVT_TX:
1804 sid = e->session_index;
1805 session = vcl_session_get (wrk, sid);
1808 if (sid < n_bits && write_map)
1810 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
1814 case SESSION_CTRL_EVT_ACCEPTED:
1815 session = vcl_session_accepted (wrk,
1816 (session_accepted_msg_t *) e->data);
1819 sid = session->session_index;
1820 if (sid < n_bits && read_map)
1822 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1826 case SESSION_CTRL_EVT_CONNECTED:
1827 connected_msg = (session_connected_msg_t *) e->data;
1828 vcl_session_connected_handler (wrk, connected_msg);
1830 case SESSION_CTRL_EVT_DISCONNECTED:
1831 disconnected_msg = (session_disconnected_msg_t *) e->data;
1832 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
1835 sid = session->session_index;
1836 if (sid < n_bits && except_map)
1838 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1842 case SESSION_CTRL_EVT_RESET:
1843 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1844 if (sid < n_bits && except_map)
1846 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1850 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1851 vcl_session_unlisten_reply_handler (wrk, e->data);
1853 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1854 vcl_session_worker_update_reply_handler (wrk, e->data);
1856 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1857 vcl_session_req_worker_update_handler (wrk, e->data);
1860 clib_warning ("unhandled: %u", e->event_type);
1866 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1867 unsigned long n_bits, unsigned long *read_map,
1868 unsigned long *write_map, unsigned long *except_map,
1869 double time_to_wait, u32 * bits_set)
1871 svm_msg_q_msg_t *msg;
1875 svm_msg_q_lock (mq);
1876 if (svm_msg_q_is_empty (mq))
1880 svm_msg_q_unlock (mq);
1886 svm_msg_q_unlock (mq);
1889 else if (time_to_wait < 0)
1891 svm_msg_q_wait (mq);
1895 if (svm_msg_q_timedwait (mq, time_to_wait))
1897 svm_msg_q_unlock (mq);
1902 vcl_mq_dequeue_batch (wrk, mq, ~0);
1903 svm_msg_q_unlock (mq);
1905 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1907 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1908 e = svm_msg_q_msg_data (mq, msg);
1909 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
1910 except_map, bits_set);
1911 svm_msg_q_free_msg (mq, msg);
1913 vec_reset_length (wrk->mq_msg_vector);
1914 vcl_handle_pending_wrk_updates (wrk);
1919 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
1920 vcl_si_set * read_map, vcl_si_set * write_map,
1921 vcl_si_set * except_map, double time_to_wait,
1924 double wait = 0, start = 0;
1928 wait = time_to_wait;
1929 start = clib_time_now (&wrk->clib_time);
1934 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1935 write_map, except_map, wait, bits_set);
1941 wait = wait - (clib_time_now (&wrk->clib_time) - start);
1949 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
1950 vcl_si_set * read_map, vcl_si_set * write_map,
1951 vcl_si_set * except_map, double time_to_wait,
1954 vcl_mq_evt_conn_t *mqc;
1955 int __clib_unused n_read;
1959 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1960 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1961 vec_len (wrk->mq_events), time_to_wait);
1962 for (i = 0; i < n_mq_evts; i++)
1964 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1965 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1966 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1967 except_map, 0, bits_set);
1970 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1974 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
1975 vcl_si_set * except_map, double time_to_wait)
1977 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1978 vcl_worker_t *wrk = vcl_worker_get_current ();
1979 vcl_session_t *session = 0;
1982 if (n_bits && read_map)
1984 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1985 clib_memcpy_fast (wrk->rd_bitmap, read_map,
1986 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1987 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1989 if (n_bits && write_map)
1991 clib_bitmap_validate (wrk->wr_bitmap, minbits);
1992 clib_memcpy_fast (wrk->wr_bitmap, write_map,
1993 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1994 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1996 if (n_bits && except_map)
1998 clib_bitmap_validate (wrk->ex_bitmap, minbits);
1999 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2000 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2001 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2011 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2012 if (!(session = vcl_session_get (wrk, sid)))
2014 if (except_map && sid < minbits)
2015 clib_bitmap_set_no_check (except_map, sid, 1);
2019 rv = svm_fifo_is_full_prod (session->tx_fifo);
2022 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2026 svm_fifo_add_want_tx_ntf (session->tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
2033 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2034 if (!(session = vcl_session_get (wrk, sid)))
2036 if (except_map && sid < minbits)
2037 clib_bitmap_set_no_check (except_map, sid, 1);
2041 rv = vcl_session_read_ready (session);
2044 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2052 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2054 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2055 read_map, write_map, except_map, &bits_set);
2057 vec_reset_length (wrk->unhandled_evts_vector);
2059 if (vcm->cfg.use_mq_eventfd)
2060 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2061 time_to_wait, &bits_set);
2063 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2064 time_to_wait, &bits_set);
2070 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
2072 vcl_session_t *session;
2073 vppcom_epoll_t *vep;
2076 if (VPPCOM_DEBUG <= 2)
2079 session = vcl_session_get (wrk, vep_idx);
2080 if (PREDICT_FALSE (!session))
2082 VDBG (0, "ERROR: Invalid vep_idx (%u)!", vep_idx);
2085 if (PREDICT_FALSE (!session->is_vep))
2087 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_idx);
2090 vep = &session->vep;
2091 VDBG (0, "vep_idx (%u): Dumping epoll chain\n"
2094 " is_vep_session = %u\n"
2095 " next_sid = 0x%x (%u)\n"
2096 "}\n", vep_idx, session->is_vep, session->is_vep_session,
2097 vep->next_sh, vep->next_sh);
2099 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
2101 session = vcl_session_get (wrk, sid);
2102 if (PREDICT_FALSE (!session))
2104 VDBG (0, "ERROR: Invalid sid (%u)!", sid);
2107 if (PREDICT_FALSE (session->is_vep))
2109 VDBG (0, "ERROR: sid (%u) is a vep!", vep_idx);
2111 else if (PREDICT_FALSE (!session->is_vep_session))
2113 VDBG (0, "ERROR: session (%u) is not a vep session!", sid);
2116 vep = &session->vep;
2117 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
2118 VDBG (0, "ERROR: session (%u) vep_idx (%u) != vep_idx (%u)!",
2119 sid, session->vep.vep_sh, vep_idx);
2120 if (session->is_vep_session)
2122 VDBG (0, "vep_idx[%u]: sid 0x%x (%u)\n"
2124 " next_sid = 0x%x (%u)\n"
2125 " prev_sid = 0x%x (%u)\n"
2126 " vep_idx = 0x%x (%u)\n"
2127 " ev.events = 0x%x\n"
2128 " ev.data.u64 = 0x%llx\n"
2131 vep_idx, sid, sid, vep->next_sh, vep->next_sh, vep->prev_sh,
2132 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2133 vep->ev.data.u64, vep->et_mask);
2138 VDBG (0, "vep_idx (%u): Dump complete!\n", vep_idx);
2142 vppcom_epoll_create (void)
2144 vcl_worker_t *wrk = vcl_worker_get_current ();
2145 vcl_session_t *vep_session;
2147 vep_session = vcl_session_alloc (wrk);
2149 vep_session->is_vep = 1;
2150 vep_session->vep.vep_sh = ~0;
2151 vep_session->vep.next_sh = ~0;
2152 vep_session->vep.prev_sh = ~0;
2153 vep_session->vpp_handle = ~0;
2155 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2156 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2158 return vcl_session_handle (vep_session);
2162 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2163 struct epoll_event *event)
2165 vcl_worker_t *wrk = vcl_worker_get_current ();
2166 vcl_session_t *vep_session;
2167 vcl_session_t *session;
2170 if (vep_handle == session_handle)
2172 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2173 return VPPCOM_EINVAL;
2176 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2177 if (PREDICT_FALSE (!vep_session))
2179 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2180 return VPPCOM_EBADFD;
2182 if (PREDICT_FALSE (!vep_session->is_vep))
2184 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2185 return VPPCOM_EINVAL;
2188 ASSERT (vep_session->vep.vep_sh == ~0);
2189 ASSERT (vep_session->vep.prev_sh == ~0);
2191 session = vcl_session_get_w_handle (wrk, session_handle);
2192 if (PREDICT_FALSE (!session))
2194 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2195 return VPPCOM_EBADFD;
2197 if (PREDICT_FALSE (session->is_vep))
2199 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2200 return VPPCOM_EINVAL;
2206 if (PREDICT_FALSE (!event))
2208 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2209 return VPPCOM_EINVAL;
2211 if (vep_session->vep.next_sh != ~0)
2213 vcl_session_t *next_session;
2214 next_session = vcl_session_get_w_handle (wrk,
2215 vep_session->vep.next_sh);
2216 if (PREDICT_FALSE (!next_session))
2218 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2219 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2220 return VPPCOM_EBADFD;
2222 ASSERT (next_session->vep.prev_sh == vep_handle);
2223 next_session->vep.prev_sh = session_handle;
2225 session->vep.next_sh = vep_session->vep.next_sh;
2226 session->vep.prev_sh = vep_handle;
2227 session->vep.vep_sh = vep_handle;
2228 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2229 session->vep.ev = *event;
2230 session->is_vep = 0;
2231 session->is_vep_session = 1;
2232 vep_session->vep.next_sh = session_handle;
2234 if (session->tx_fifo)
2235 svm_fifo_add_want_tx_ntf (session->tx_fifo,
2236 SVM_FIFO_WANT_TX_NOTIF_IF_FULL);
2238 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2239 vep_handle, session_handle, event->events, event->data.u64);
2240 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2244 if (PREDICT_FALSE (!event))
2246 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2250 else if (PREDICT_FALSE (!session->is_vep_session))
2252 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2256 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2258 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2259 session_handle, session->vep.vep_sh, vep_handle);
2263 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2264 session->vep.ev = *event;
2265 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2266 vep_handle, session_handle, event->events, event->data.u64);
2270 if (PREDICT_FALSE (!session->is_vep_session))
2272 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2276 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2278 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2279 session_handle, session->vep.vep_sh, vep_handle);
2284 if (session->vep.prev_sh == vep_handle)
2285 vep_session->vep.next_sh = session->vep.next_sh;
2288 vcl_session_t *prev_session;
2289 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2290 if (PREDICT_FALSE (!prev_session))
2292 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2293 session->vep.prev_sh, session_handle);
2294 return VPPCOM_EBADFD;
2296 ASSERT (prev_session->vep.next_sh == session_handle);
2297 prev_session->vep.next_sh = session->vep.next_sh;
2299 if (session->vep.next_sh != ~0)
2301 vcl_session_t *next_session;
2302 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2303 if (PREDICT_FALSE (!next_session))
2305 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2306 session->vep.next_sh, session_handle);
2307 return VPPCOM_EBADFD;
2309 ASSERT (next_session->vep.prev_sh == session_handle);
2310 next_session->vep.prev_sh = session->vep.prev_sh;
2313 memset (&session->vep, 0, sizeof (session->vep));
2314 session->vep.next_sh = ~0;
2315 session->vep.prev_sh = ~0;
2316 session->vep.vep_sh = ~0;
2317 session->is_vep_session = 0;
2319 if (session->tx_fifo)
2320 svm_fifo_del_want_tx_ntf (session->tx_fifo, SVM_FIFO_NO_TX_NOTIF);
2322 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2324 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2328 VDBG (0, "Invalid operation (%d)!", op);
2332 vep_verify_epoll_chain (wrk, vep_handle);
2339 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2340 struct epoll_event *events, u32 * num_ev)
2342 session_disconnected_msg_t *disconnected_msg;
2343 session_connected_msg_t *connected_msg;
2344 u32 sid = ~0, session_events;
2345 u64 session_evt_data = ~0;
2346 vcl_session_t *session;
2349 switch (e->event_type)
2351 case SESSION_IO_EVT_RX:
2352 sid = e->session_index;
2353 if (!(session = vcl_session_get (wrk, sid)))
2355 vcl_fifo_rx_evt_valid_or_break (session);
2356 session_events = session->vep.ev.events;
2357 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2360 events[*num_ev].events |= EPOLLIN;
2361 session_evt_data = session->vep.ev.data.u64;
2362 session->has_rx_evt = 1;
2364 case SESSION_IO_EVT_TX:
2365 sid = e->session_index;
2366 if (!(session = vcl_session_get (wrk, sid)))
2368 session_events = session->vep.ev.events;
2369 if (!(EPOLLOUT & session_events))
2372 events[*num_ev].events |= EPOLLOUT;
2373 session_evt_data = session->vep.ev.data.u64;
2374 svm_fifo_reset_tx_ntf (session->tx_fifo);
2376 case SESSION_CTRL_EVT_ACCEPTED:
2377 session = vcl_session_accepted (wrk,
2378 (session_accepted_msg_t *) e->data);
2382 session_events = session->vep.ev.events;
2383 if (!(EPOLLIN & session_events))
2387 events[*num_ev].events |= EPOLLIN;
2388 session_evt_data = session->vep.ev.data.u64;
2390 case SESSION_CTRL_EVT_CONNECTED:
2391 connected_msg = (session_connected_msg_t *) e->data;
2392 vcl_session_connected_handler (wrk, connected_msg);
2393 /* Generate EPOLLOUT because there's no connected event */
2394 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2395 if (!(session = vcl_session_get (wrk, sid)))
2397 session_events = session->vep.ev.events;
2398 if (!(EPOLLOUT & session_events))
2401 events[*num_ev].events |= EPOLLOUT;
2402 session_evt_data = session->vep.ev.data.u64;
2404 case SESSION_CTRL_EVT_DISCONNECTED:
2405 disconnected_msg = (session_disconnected_msg_t *) e->data;
2406 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2409 session_events = session->vep.ev.events;
2410 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2413 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2414 session_evt_data = session->vep.ev.data.u64;
2416 case SESSION_CTRL_EVT_RESET:
2417 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2418 if (!(session = vcl_session_get (wrk, sid)))
2420 session_events = session->vep.ev.events;
2421 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2424 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2425 session_evt_data = session->vep.ev.data.u64;
2427 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2428 vcl_session_unlisten_reply_handler (wrk, e->data);
2430 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2431 vcl_session_req_worker_update_handler (wrk, e->data);
2433 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2434 vcl_session_worker_update_reply_handler (wrk, e->data);
2437 VDBG (0, "unhandled: %u", e->event_type);
2443 events[*num_ev].data.u64 = session_evt_data;
2444 if (EPOLLONESHOT & session_events)
2446 session = vcl_session_get (wrk, sid);
2447 session->vep.ev.events = 0;
2454 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2455 struct epoll_event *events, u32 maxevents,
2456 double wait_for_time, u32 * num_ev)
2458 svm_msg_q_msg_t *msg;
2462 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2463 goto handle_dequeued;
2465 svm_msg_q_lock (mq);
2466 if (svm_msg_q_is_empty (mq))
2470 svm_msg_q_unlock (mq);
2473 else if (wait_for_time < 0)
2475 svm_msg_q_wait (mq);
2479 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2481 svm_msg_q_unlock (mq);
2486 ASSERT (maxevents > *num_ev);
2487 vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev);
2488 svm_msg_q_unlock (mq);
2491 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2493 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2494 e = svm_msg_q_msg_data (mq, msg);
2495 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2496 svm_msg_q_free_msg (mq, msg);
2498 vec_reset_length (wrk->mq_msg_vector);
2499 vcl_handle_pending_wrk_updates (wrk);
2504 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2505 int maxevents, u32 n_evts, double wait_for_time)
2507 double wait = 0, start = 0, now;
2511 wait = wait_for_time;
2512 start = clib_time_now (&wrk->clib_time);
2517 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2524 now = clib_time_now (&wrk->clib_time);
2525 wait -= now - start;
2534 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2535 int maxevents, u32 n_evts, double wait_for_time)
2537 vcl_mq_evt_conn_t *mqc;
2538 int __clib_unused n_read;
2542 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2544 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2545 vec_len (wrk->mq_events), wait_for_time);
2546 for (i = 0; i < n_mq_evts; i++)
2548 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2549 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2550 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2552 if (!n_evts && n_mq_evts > 0)
2555 return (int) n_evts;
2559 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2560 int maxevents, double wait_for_time)
2562 vcl_worker_t *wrk = vcl_worker_get_current ();
2563 vcl_session_t *vep_session;
2567 if (PREDICT_FALSE (maxevents <= 0))
2569 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
2570 return VPPCOM_EINVAL;
2573 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2575 return VPPCOM_EBADFD;
2577 if (PREDICT_FALSE (!vep_session->is_vep))
2579 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
2580 return VPPCOM_EINVAL;
2583 memset (events, 0, sizeof (*events) * maxevents);
2585 if (vec_len (wrk->unhandled_evts_vector))
2587 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2589 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2591 if (n_evts == maxevents)
2593 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
2597 vec_reset_length (wrk->unhandled_evts_vector);
2600 if (vcm->cfg.use_mq_eventfd)
2601 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2604 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2609 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2610 void *buffer, uint32_t * buflen)
2612 vcl_worker_t *wrk = vcl_worker_get_current ();
2613 vcl_session_t *session;
2615 u32 *flags = buffer, tmp_flags = 0;
2616 vppcom_endpt_t *ep = buffer;
2618 session = vcl_session_get_w_handle (wrk, session_handle);
2620 return VPPCOM_EBADFD;
2624 case VPPCOM_ATTR_GET_NREAD:
2625 rv = vcl_session_read_ready (session);
2626 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
2630 case VPPCOM_ATTR_GET_NWRITE:
2631 rv = vcl_session_write_ready (session);
2632 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
2636 case VPPCOM_ATTR_GET_FLAGS:
2637 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2639 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2640 VCL_SESS_ATTR_NONBLOCK));
2641 *buflen = sizeof (*flags);
2642 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
2643 "is_nonblocking = %u", session_handle, *flags,
2644 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2650 case VPPCOM_ATTR_SET_FLAGS:
2651 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2653 if (*flags & O_NONBLOCK)
2654 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2656 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2658 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
2659 " is_nonblocking = %u", session_handle, *flags,
2660 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2666 case VPPCOM_ATTR_GET_PEER_ADDR:
2667 if (PREDICT_TRUE (buffer && buflen &&
2668 (*buflen >= sizeof (*ep)) && ep->ip))
2670 ep->is_ip4 = session->transport.is_ip4;
2671 ep->port = session->transport.rmt_port;
2672 if (session->transport.is_ip4)
2673 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2674 sizeof (ip4_address_t));
2676 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2677 sizeof (ip6_address_t));
2678 *buflen = sizeof (*ep);
2679 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
2680 "addr = %U, port %u", session_handle, ep->is_ip4,
2681 format_ip46_address, &session->transport.rmt_ip,
2682 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2683 clib_net_to_host_u16 (ep->port));
2689 case VPPCOM_ATTR_GET_LCL_ADDR:
2690 if (PREDICT_TRUE (buffer && buflen &&
2691 (*buflen >= sizeof (*ep)) && ep->ip))
2693 ep->is_ip4 = session->transport.is_ip4;
2694 ep->port = session->transport.lcl_port;
2695 if (session->transport.is_ip4)
2696 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2697 sizeof (ip4_address_t));
2699 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2700 sizeof (ip6_address_t));
2701 *buflen = sizeof (*ep);
2702 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
2703 " port %d", session_handle, ep->is_ip4, format_ip46_address,
2704 &session->transport.lcl_ip,
2705 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2706 clib_net_to_host_u16 (ep->port));
2712 case VPPCOM_ATTR_GET_LIBC_EPFD:
2713 rv = session->libc_epfd;
2714 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
2717 case VPPCOM_ATTR_SET_LIBC_EPFD:
2718 if (PREDICT_TRUE (buffer && buflen &&
2719 (*buflen == sizeof (session->libc_epfd))))
2721 session->libc_epfd = *(int *) buffer;
2722 *buflen = sizeof (session->libc_epfd);
2724 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
2725 session->libc_epfd, *buflen);
2731 case VPPCOM_ATTR_GET_PROTOCOL:
2732 if (buffer && buflen && (*buflen >= sizeof (int)))
2734 *(int *) buffer = session->session_type;
2735 *buflen = sizeof (int);
2737 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2738 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
2744 case VPPCOM_ATTR_GET_LISTEN:
2745 if (buffer && buflen && (*buflen >= sizeof (int)))
2747 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2748 VCL_SESS_ATTR_LISTEN);
2749 *buflen = sizeof (int);
2751 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
2758 case VPPCOM_ATTR_GET_ERROR:
2759 if (buffer && buflen && (*buflen >= sizeof (int)))
2761 *(int *) buffer = 0;
2762 *buflen = sizeof (int);
2764 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2765 *(int *) buffer, *buflen);
2771 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2772 if (buffer && buflen && (*buflen >= sizeof (u32)))
2776 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2777 session->tx_fifo ? session->tx_fifo->nitems :
2778 vcm->cfg.tx_fifo_size);
2779 *buflen = sizeof (u32);
2781 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
2782 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
2789 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2790 if (buffer && buflen && (*buflen == sizeof (u32)))
2793 session->sndbuf_size = *(u32 *) buffer;
2794 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
2795 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
2802 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2803 if (buffer && buflen && (*buflen >= sizeof (u32)))
2807 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2808 session->rx_fifo ? session->rx_fifo->nitems :
2809 vcm->cfg.rx_fifo_size);
2810 *buflen = sizeof (u32);
2812 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
2813 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
2819 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2820 if (buffer && buflen && (*buflen == sizeof (u32)))
2823 session->rcvbuf_size = *(u32 *) buffer;
2824 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
2825 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
2832 case VPPCOM_ATTR_GET_REUSEADDR:
2833 if (buffer && buflen && (*buflen >= sizeof (int)))
2836 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2837 VCL_SESS_ATTR_REUSEADDR);
2838 *buflen = sizeof (int);
2840 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
2841 *(int *) buffer, *buflen);
2847 case VPPCOM_ATTR_SET_REUSEADDR:
2848 if (buffer && buflen && (*buflen == sizeof (int)) &&
2849 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2852 if (*(int *) buffer)
2853 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2855 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2857 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
2858 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
2865 case VPPCOM_ATTR_GET_REUSEPORT:
2866 if (buffer && buflen && (*buflen >= sizeof (int)))
2869 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2870 VCL_SESS_ATTR_REUSEPORT);
2871 *buflen = sizeof (int);
2873 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
2874 *(int *) buffer, *buflen);
2880 case VPPCOM_ATTR_SET_REUSEPORT:
2881 if (buffer && buflen && (*buflen == sizeof (int)) &&
2882 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2885 if (*(int *) buffer)
2886 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2888 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2890 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
2891 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
2898 case VPPCOM_ATTR_GET_BROADCAST:
2899 if (buffer && buflen && (*buflen >= sizeof (int)))
2902 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2903 VCL_SESS_ATTR_BROADCAST);
2904 *buflen = sizeof (int);
2906 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
2907 *(int *) buffer, *buflen);
2913 case VPPCOM_ATTR_SET_BROADCAST:
2914 if (buffer && buflen && (*buflen == sizeof (int)))
2917 if (*(int *) buffer)
2918 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2920 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2922 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
2923 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
2930 case VPPCOM_ATTR_GET_V6ONLY:
2931 if (buffer && buflen && (*buflen >= sizeof (int)))
2934 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2935 VCL_SESS_ATTR_V6ONLY);
2936 *buflen = sizeof (int);
2938 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
2939 *(int *) buffer, *buflen);
2945 case VPPCOM_ATTR_SET_V6ONLY:
2946 if (buffer && buflen && (*buflen == sizeof (int)))
2949 if (*(int *) buffer)
2950 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2952 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2954 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
2955 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
2962 case VPPCOM_ATTR_GET_KEEPALIVE:
2963 if (buffer && buflen && (*buflen >= sizeof (int)))
2966 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2967 VCL_SESS_ATTR_KEEPALIVE);
2968 *buflen = sizeof (int);
2970 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
2971 *(int *) buffer, *buflen);
2977 case VPPCOM_ATTR_SET_KEEPALIVE:
2978 if (buffer && buflen && (*buflen == sizeof (int)))
2981 if (*(int *) buffer)
2982 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2984 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2986 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
2987 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
2994 case VPPCOM_ATTR_GET_TCP_NODELAY:
2995 if (buffer && buflen && (*buflen >= sizeof (int)))
2998 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2999 VCL_SESS_ATTR_TCP_NODELAY);
3000 *buflen = sizeof (int);
3002 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3003 *(int *) buffer, *buflen);
3009 case VPPCOM_ATTR_SET_TCP_NODELAY:
3010 if (buffer && buflen && (*buflen == sizeof (int)))
3013 if (*(int *) buffer)
3014 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3016 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3018 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3019 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3026 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3027 if (buffer && buflen && (*buflen >= sizeof (int)))
3030 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3031 VCL_SESS_ATTR_TCP_KEEPIDLE);
3032 *buflen = sizeof (int);
3034 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3035 *(int *) buffer, *buflen);
3041 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3042 if (buffer && buflen && (*buflen == sizeof (int)))
3045 if (*(int *) buffer)
3046 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3048 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3050 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3051 VCL_SESS_ATTR_TEST (session->attr,
3052 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3058 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3059 if (buffer && buflen && (*buflen >= sizeof (int)))
3062 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3063 VCL_SESS_ATTR_TCP_KEEPINTVL);
3064 *buflen = sizeof (int);
3066 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3067 *(int *) buffer, *buflen);
3073 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3074 if (buffer && buflen && (*buflen == sizeof (int)))
3077 if (*(int *) buffer)
3078 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3080 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3082 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3083 VCL_SESS_ATTR_TEST (session->attr,
3084 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3090 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3091 if (buffer && buflen && (*buflen >= sizeof (u32)))
3094 *(u32 *) buffer = session->user_mss;
3095 *buflen = sizeof (int);
3097 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3098 *(int *) buffer, *buflen);
3104 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3105 if (buffer && buflen && (*buflen == sizeof (u32)))
3108 session->user_mss = *(u32 *) buffer;
3110 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3111 session->user_mss, *buflen);
3117 case VPPCOM_ATTR_SET_SHUT:
3118 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3119 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3120 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3121 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3124 case VPPCOM_ATTR_GET_SHUT:
3125 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3127 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3130 *(int *) buffer = SHUT_RD;
3131 else if (tmp_flags == 2)
3132 *(int *) buffer = SHUT_WR;
3133 else if (tmp_flags == 3)
3134 *(int *) buffer = SHUT_RDWR;
3135 *buflen = sizeof (int);
3146 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3147 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3149 vcl_worker_t *wrk = vcl_worker_get_current ();
3151 vcl_session_t *session = 0;
3155 session = vcl_session_get_w_handle (wrk, session_handle);
3156 if (PREDICT_FALSE (!session))
3158 VDBG (0, "sh 0x%llx is closed!", session_handle);
3159 return VPPCOM_EBADFD;
3161 ep->is_ip4 = session->transport.is_ip4;
3162 ep->port = session->transport.rmt_port;
3166 rv = vppcom_session_read (session_handle, buffer, buflen);
3167 else if (flags & MSG_PEEK)
3168 rv = vppcom_session_peek (session_handle, buffer, buflen);
3171 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3172 return VPPCOM_EAFNOSUPPORT;
3177 if (session->transport.is_ip4)
3178 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3179 sizeof (ip4_address_t));
3181 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3182 sizeof (ip6_address_t));
3189 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3190 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3193 return VPPCOM_EINVAL;
3198 return VPPCOM_EINVAL;
3203 // TBD check the flags and do the right thing
3204 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3207 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3211 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3213 vcl_worker_t *wrk = vcl_worker_get_current ();
3214 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3215 u32 i, keep_trying = 1;
3216 svm_msg_q_msg_t msg;
3220 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3223 return VPPCOM_EFAULT;
3227 vcl_session_t *session;
3229 /* Dequeue all events and drop all unhandled io events */
3230 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3232 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3233 vcl_handle_mq_event (wrk, e);
3234 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3236 vec_reset_length (wrk->unhandled_evts_vector);
3238 for (i = 0; i < n_sids; i++)
3240 session = vcl_session_get (wrk, vp[i].sh);
3243 vp[i].revents = POLLHUP;
3250 if (POLLIN & vp[i].events)
3252 rv = vcl_session_read_ready (session);
3255 vp[i].revents |= POLLIN;
3262 case VPPCOM_ECONNRESET:
3263 vp[i].revents = POLLHUP;
3267 vp[i].revents = POLLERR;
3274 if (POLLOUT & vp[i].events)
3276 rv = vcl_session_write_ready (session);
3279 vp[i].revents |= POLLOUT;
3286 case VPPCOM_ECONNRESET:
3287 vp[i].revents = POLLHUP;
3291 vp[i].revents = POLLERR;
3298 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3300 vp[i].revents = POLLNVAL;
3304 if (wait_for_time != -1)
3305 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3307 while ((num_ev == 0) && keep_trying);
3313 vppcom_mq_epoll_fd (void)
3315 vcl_worker_t *wrk = vcl_worker_get_current ();
3316 return wrk->mqs_epfd;
3320 vppcom_session_index (vcl_session_handle_t session_handle)
3322 return session_handle & 0xFFFFFF;
3326 vppcom_session_worker (vcl_session_handle_t session_handle)
3328 return session_handle >> 24;
3332 vppcom_worker_register (void)
3334 if (!vcl_worker_alloc_and_init ())
3335 return VPPCOM_EEXIST;
3337 if (vcl_worker_set_bapi ())
3338 return VPPCOM_EEXIST;
3340 if (vcl_worker_register_with_vpp ())
3341 return VPPCOM_EEXIST;
3347 vppcom_worker_index (void)
3349 return vcl_get_worker_index ();
3353 vppcom_worker_mqs_epfd (void)
3355 vcl_worker_t *wrk = vcl_worker_get_current ();
3356 if (!vcm->cfg.use_mq_eventfd)
3358 return wrk->mqs_epfd;
3362 * fd.io coding-style-patch-verification: ON
3365 * eval: (c-set-style "gnu")