2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <svm/svm_fifo_segment.h>
19 #include <vcl/vppcom.h>
20 #include <vcl/vcl_debug.h>
21 #include <vcl/vcl_private.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_wait_for_segment (u64 segment_handle)
28 vcl_worker_t *wrk = vcl_worker_get_current ();
29 u32 wait_for_seconds = 10, segment_index;
32 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
35 timeout = clib_time_now (&wrk->clib_time) + wait_for_seconds;
36 while (clib_time_now (&wrk->clib_time) < timeout)
38 segment_index = vcl_segment_table_lookup (segment_handle);
39 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
47 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq)
53 n_msgs = svm_msg_q_size (mq);
54 for (i = 0; i < n_msgs; i++)
56 vec_add2 (wrk->mq_msg_vector, msg, 1);
57 svm_msg_q_sub_w_lock (mq, msg);
63 vppcom_session_state_str (vcl_session_state_t state)
85 case STATE_VPP_CLOSING:
86 st = "STATE_VPP_CLOSING";
89 case STATE_DISCONNECT:
90 st = "STATE_DISCONNECT";
101 case STATE_LISTEN_NO_MQ:
102 st = "STATE_LISTEN_NO_MQ";
106 st = "UNKNOWN_STATE";
114 format_ip4_address (u8 * s, va_list * args)
116 u8 *a = va_arg (*args, u8 *);
117 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
121 format_ip6_address (u8 * s, va_list * args)
123 ip6_address_t *a = va_arg (*args, ip6_address_t *);
124 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
126 i_max_n_zero = ARRAY_LEN (a->as_u16);
128 i_first_zero = i_max_n_zero;
130 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
132 u32 is_zero = a->as_u16[i] == 0;
133 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
139 if ((!is_zero && n_zeros > max_n_zeros)
140 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
142 i_max_n_zero = i_first_zero;
143 max_n_zeros = n_zeros;
144 i_first_zero = ARRAY_LEN (a->as_u16);
149 last_double_colon = 0;
150 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
152 if (i == i_max_n_zero && max_n_zeros > 1)
154 s = format (s, "::");
155 i += max_n_zeros - 1;
156 last_double_colon = 1;
160 s = format (s, "%s%x",
161 (last_double_colon || i == 0) ? "" : ":",
162 clib_net_to_host_u16 (a->as_u16[i]));
163 last_double_colon = 0;
170 /* Format an IP46 address. */
172 format_ip46_address (u8 * s, va_list * args)
174 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
175 ip46_type_t type = va_arg (*args, ip46_type_t);
181 is_ip4 = ip46_address_is_ip4 (ip46);
192 format (s, "%U", format_ip4_address, &ip46->ip4) :
193 format (s, "%U", format_ip6_address, &ip46->ip6);
197 * VPPCOM Utility Functions
202 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
203 session_handle_t handle, int retval)
205 app_session_evt_t _app_evt, *app_evt = &_app_evt;
206 session_accepted_reply_msg_t *rmp;
207 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
208 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
209 rmp->handle = handle;
210 rmp->context = context;
211 rmp->retval = retval;
212 app_send_ctrl_evt_to_vpp (mq, app_evt);
216 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
217 session_handle_t handle, int retval)
219 app_session_evt_t _app_evt, *app_evt = &_app_evt;
220 session_disconnected_reply_msg_t *rmp;
221 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
222 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
223 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
224 rmp->handle = handle;
225 rmp->context = context;
226 rmp->retval = retval;
227 app_send_ctrl_evt_to_vpp (mq, app_evt);
231 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
232 session_handle_t handle, int retval)
234 app_session_evt_t _app_evt, *app_evt = &_app_evt;
235 session_reset_reply_msg_t *rmp;
236 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
237 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
238 rmp->handle = handle;
239 rmp->context = context;
240 rmp->retval = retval;
241 app_send_ctrl_evt_to_vpp (mq, app_evt);
245 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
248 app_session_evt_t _app_evt, *app_evt = &_app_evt;
249 session_worker_update_msg_t *mp;
252 mq = vcl_session_vpp_evt_q (wrk, s);
253 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
254 mp = (session_worker_update_msg_t *) app_evt->evt->data;
255 mp->client_index = wrk->my_client_index;
256 mp->handle = s->vpp_handle;
257 mp->req_wrk_index = wrk->vpp_wrk_index;
258 mp->wrk_index = wrk_index;
259 app_send_ctrl_evt_to_vpp (mq, app_evt);
263 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp)
265 vcl_session_t *session, *listen_session;
266 svm_fifo_t *rx_fifo, *tx_fifo;
270 session = vcl_session_alloc (wrk);
272 listen_session = vcl_session_table_lookup_listener (wrk,
273 mp->listener_handle);
276 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
277 clib_warning ("VCL<%d>: ERROR: couldn't find listen session: "
278 "unknown vpp listener handle %llx",
279 getpid (), mp->listener_handle);
280 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
281 VNET_API_ERROR_INVALID_ARGUMENT);
282 vcl_session_free (wrk, session);
283 return VCL_INVALID_SESSION_INDEX;
286 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
287 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
289 if (vcl_wait_for_segment (mp->segment_handle))
291 clib_warning ("segment for session %u couldn't be mounted!",
292 session->session_index);
293 return VCL_INVALID_SESSION_INDEX;
296 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
298 rx_fifo->client_session_index = session->session_index;
299 tx_fifo->client_session_index = session->session_index;
300 rx_fifo->client_thread_index = vcl_get_worker_index ();
301 tx_fifo->client_thread_index = vcl_get_worker_index ();
302 vpp_wrk_index = tx_fifo->master_thread_index;
303 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
304 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
306 session->vpp_handle = mp->handle;
307 session->vpp_thread_index = rx_fifo->master_thread_index;
308 session->client_context = mp->context;
309 session->rx_fifo = rx_fifo;
310 session->tx_fifo = tx_fifo;
312 session->session_state = STATE_ACCEPT;
313 session->transport.rmt_port = mp->port;
314 session->transport.is_ip4 = mp->is_ip4;
315 clib_memcpy_fast (&session->transport.rmt_ip, mp->ip,
316 sizeof (ip46_address_t));
318 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
319 session->transport.lcl_port = listen_session->transport.lcl_port;
320 session->transport.lcl_ip = listen_session->transport.lcl_ip;
321 session->session_type = listen_session->session_type;
322 session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
324 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s"
325 " address %U port %d queue %p!", getpid (), mp->handle,
326 session->session_index,
327 mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip,
328 mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
329 clib_net_to_host_u16 (mp->port), session->vpp_evt_q);
330 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
332 return session->session_index;
336 vcl_session_connected_handler (vcl_worker_t * wrk,
337 session_connected_msg_t * mp)
339 u32 session_index, vpp_wrk_index;
340 svm_fifo_t *rx_fifo, *tx_fifo;
341 vcl_session_t *session = 0;
343 session_index = mp->context;
344 session = vcl_session_get (wrk, session_index);
347 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
348 "Invalid session index (%u)!",
349 getpid (), mp->handle, session_index);
350 return VCL_INVALID_SESSION_INDEX;
354 clib_warning ("VCL<%d>: ERROR: sid %u: connect failed! %U", getpid (),
355 session_index, format_api_error, ntohl (mp->retval));
356 session->session_state = STATE_FAILED;
357 session->vpp_handle = mp->handle;
358 return session_index;
361 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
362 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
363 if (vcl_wait_for_segment (mp->segment_handle))
365 VDBG (0, "segment for session %u couldn't be mounted!",
366 session->session_index);
367 return VCL_INVALID_SESSION_INDEX;
370 rx_fifo->client_session_index = session_index;
371 tx_fifo->client_session_index = session_index;
372 rx_fifo->client_thread_index = vcl_get_worker_index ();
373 tx_fifo->client_thread_index = vcl_get_worker_index ();
375 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
377 vpp_wrk_index = tx_fifo->master_thread_index;
378 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
379 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
383 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
384 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
385 if (vcl_wait_for_segment (mp->ct_segment_handle))
387 VDBG (0, "ct segment for session %u couldn't be mounted!",
388 session->session_index);
389 return VCL_INVALID_SESSION_INDEX;
393 session->rx_fifo = rx_fifo;
394 session->tx_fifo = tx_fifo;
395 session->vpp_handle = mp->handle;
396 session->vpp_thread_index = rx_fifo->master_thread_index;
397 session->transport.is_ip4 = mp->is_ip4;
398 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
399 sizeof (session->transport.lcl_ip));
400 session->transport.lcl_port = mp->lcl_port;
401 session->session_state = STATE_CONNECT;
403 /* Add it to lookup table */
404 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
406 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! "
407 "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d",
408 getpid (), mp->handle, session_index, session->rx_fifo,
409 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
411 return session_index;
415 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
417 vcl_session_msg_t *accepted_msg;
420 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
422 accepted_msg = &session->accept_evts_fifo[i];
423 if (accepted_msg->accepted_msg.handle == handle)
425 accepted_msg->flags |= flags;
433 vcl_session_reset_handler (vcl_worker_t * wrk,
434 session_reset_msg_t * reset_msg)
436 vcl_session_t *session;
439 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
440 session = vcl_session_get (wrk, sid);
443 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
444 return VCL_INVALID_SESSION_INDEX;
447 /* Caught a reset before actually accepting the session */
448 if (session->session_state == STATE_LISTEN)
451 if (!vcl_flag_accepted_session (session, reset_msg->handle,
452 VCL_ACCEPTED_F_RESET))
453 VDBG (0, "session was not accepted!");
454 return VCL_INVALID_SESSION_INDEX;
457 session->session_state = STATE_DISCONNECT;
458 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
463 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
465 vcl_session_t *session;
466 u32 sid = mp->context;
468 session = vcl_session_get (wrk, sid);
471 VERR ("vpp handle 0x%llx, sid %u: bind failed: %U", mp->handle, sid,
472 format_api_error, mp->retval);
475 session->session_state = STATE_FAILED;
476 session->vpp_handle = mp->handle;
481 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
482 "Invalid session index (%u)!",
483 getpid (), mp->handle, sid);
484 return VCL_INVALID_SESSION_INDEX;
488 session->vpp_handle = mp->handle;
489 session->transport.is_ip4 = mp->lcl_is_ip4;
490 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
491 sizeof (ip46_address_t));
492 session->transport.lcl_port = mp->lcl_port;
493 vcl_session_table_add_listener (wrk, mp->handle, sid);
494 session->session_state = STATE_LISTEN;
496 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
497 vec_validate (wrk->vpp_event_queues, 0);
498 wrk->vpp_event_queues[0] = session->vpp_evt_q;
500 if (session->is_dgram)
502 svm_fifo_t *rx_fifo, *tx_fifo;
503 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
504 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
505 rx_fifo->client_session_index = sid;
506 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
507 tx_fifo->client_session_index = sid;
508 session->rx_fifo = rx_fifo;
509 session->tx_fifo = tx_fifo;
512 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
517 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
519 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
522 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
523 if (!s || s->session_state != STATE_DISCONNECT)
525 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
530 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
531 s->session_index, mp->handle, format_api_error, ntohl (mp->retval));
533 if (mp->context != wrk->wrk_index)
534 VDBG (0, "wrong context");
536 vcl_session_table_del_vpp_handle (wrk, mp->handle);
537 vcl_session_free (wrk, s);
540 static vcl_session_t *
541 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
543 vcl_session_msg_t *vcl_msg;
544 vcl_session_t *session;
546 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
547 if (PREDICT_FALSE (session != 0))
548 VWRN ("session overlap handle %lu state %u!", msg->handle,
549 session->session_state);
551 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
554 VERR ("couldn't find listen session: listener handle %llx",
555 msg->listener_handle);
559 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
560 vcl_msg->accepted_msg = *msg;
561 /* Session handle points to listener until fully accepted by app */
562 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
567 static vcl_session_t *
568 vcl_session_disconnected_handler (vcl_worker_t * wrk,
569 session_disconnected_msg_t * msg)
571 vcl_session_t *session;
573 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
576 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
580 /* Caught a disconnect before actually accepting the session */
581 if (session->session_state == STATE_LISTEN)
583 if (!vcl_flag_accepted_session (session, msg->handle,
584 VCL_ACCEPTED_F_CLOSED))
585 VDBG (0, "session was not accepted!");
589 session->session_state = STATE_VPP_CLOSING;
594 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
596 session_req_worker_update_msg_t *msg;
599 msg = (session_req_worker_update_msg_t *) data;
600 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
604 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
608 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
610 session_worker_update_reply_msg_t *msg;
613 msg = (session_worker_update_reply_msg_t *) data;
614 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
617 VDBG (0, "unknown handle 0x%llx", msg->handle);
620 if (vcl_wait_for_segment (msg->segment_handle))
622 clib_warning ("segment for session %u couldn't be mounted!",
629 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
630 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
631 s->rx_fifo->client_session_index = s->session_index;
632 s->tx_fifo->client_session_index = s->session_index;
633 s->rx_fifo->client_thread_index = wrk->wrk_index;
634 s->tx_fifo->client_thread_index = wrk->wrk_index;
636 s->session_state = STATE_UPDATED;
638 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
639 s->vpp_handle, wrk->wrk_index);
643 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
645 session_disconnected_msg_t *disconnected_msg;
646 vcl_session_t *session;
648 switch (e->event_type)
650 case SESSION_IO_EVT_RX:
651 case SESSION_IO_EVT_TX:
652 session = vcl_session_get (wrk, e->session_index);
653 if (!session || !(session->session_state & STATE_OPEN))
655 vec_add1 (wrk->unhandled_evts_vector, *e);
657 case SESSION_CTRL_EVT_ACCEPTED:
658 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
660 case SESSION_CTRL_EVT_CONNECTED:
661 vcl_session_connected_handler (wrk,
662 (session_connected_msg_t *) e->data);
664 case SESSION_CTRL_EVT_DISCONNECTED:
665 disconnected_msg = (session_disconnected_msg_t *) e->data;
666 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
669 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
670 session->vpp_handle);
672 case SESSION_CTRL_EVT_RESET:
673 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
675 case SESSION_CTRL_EVT_BOUND:
676 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
678 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
679 vcl_session_unlisten_reply_handler (wrk, e->data);
681 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
682 vcl_session_req_worker_update_handler (wrk, e->data);
684 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
685 vcl_session_worker_update_reply_handler (wrk, e->data);
688 clib_warning ("unhandled %u", e->event_type);
694 vppcom_wait_for_session_state_change (u32 session_index,
695 vcl_session_state_t state,
698 vcl_worker_t *wrk = vcl_worker_get_current ();
699 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
700 vcl_session_t *volatile session;
706 session = vcl_session_get (wrk, session_index);
707 if (PREDICT_FALSE (!session))
709 return VPPCOM_EBADFD;
711 if (session->session_state & state)
715 if (session->session_state & STATE_FAILED)
717 return VPPCOM_ECONNREFUSED;
720 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
725 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
726 vcl_handle_mq_event (wrk, e);
727 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
729 while (clib_time_now (&wrk->clib_time) < timeout);
731 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
732 vppcom_session_state_str (state));
733 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
735 return VPPCOM_ETIMEDOUT;
739 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
741 vcl_session_state_t state;
745 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
748 vec_foreach (sip, wrk->pending_session_wrk_updates)
750 s = vcl_session_get (wrk, *sip);
751 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
752 state = s->session_state;
753 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
754 s->session_state = state;
756 vec_reset_length (wrk->pending_session_wrk_updates);
760 vcl_flush_mq_events (void)
762 vcl_worker_t *wrk = vcl_worker_get_current ();
763 svm_msg_q_msg_t *msg;
768 mq = wrk->app_event_queue;
770 vcl_mq_dequeue_batch (wrk, mq);
771 svm_msg_q_unlock (mq);
773 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
775 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
776 e = svm_msg_q_msg_data (mq, msg);
777 vcl_handle_mq_event (wrk, e);
778 svm_msg_q_free_msg (mq, msg);
780 vec_reset_length (wrk->mq_msg_vector);
781 vcl_handle_pending_wrk_updates (wrk);
785 vppcom_app_session_enable (void)
789 if (vcm->app_state != STATE_APP_ENABLED)
791 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
792 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
793 if (PREDICT_FALSE (rv))
795 VDBG (0, "VCL<%d>: application session enable timed out! "
796 "returning %d (%s)", getpid (), rv, vppcom_retval_str (rv));
804 vppcom_app_attach (void)
808 vppcom_app_send_attach ();
809 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
810 if (PREDICT_FALSE (rv))
812 VDBG (0, "VCL<%d>: application attach timed out! returning %d (%s)",
813 getpid (), rv, vppcom_retval_str (rv));
821 vppcom_session_unbind (u32 session_handle)
823 vcl_worker_t *wrk = vcl_worker_get_current ();
824 vcl_session_t *session = 0;
827 session = vcl_session_get_w_handle (wrk, session_handle);
829 return VPPCOM_EBADFD;
831 vpp_handle = session->vpp_handle;
832 session->vpp_handle = ~0;
833 session->session_state = STATE_DISCONNECT;
835 VDBG (1, "vpp handle 0x%llx, sid %u: sending unbind msg! new state"
836 " 0x%x (%s)", vpp_handle, session_handle, STATE_DISCONNECT,
837 vppcom_session_state_str (STATE_DISCONNECT));
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, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (),
861 vpp_handle, session_handle, state, vppcom_session_state_str (state));
863 if (PREDICT_FALSE (state & STATE_LISTEN))
865 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
866 "Cannot disconnect a listen socket!",
867 getpid (), vpp_handle, session_handle);
868 return VPPCOM_EBADFD;
871 if (state & STATE_VPP_CLOSING)
873 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
874 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
876 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect "
877 "REPLY...", getpid (), vpp_handle, session_handle);
881 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...",
882 getpid (), vpp_handle, session_handle);
883 vppcom_send_disconnect_session (vpp_handle);
892 * Notify vpp of the disconnect and mark the worker as free. If we're the
893 * last worker, do a full cleanup otherwise, since we're probably a forked
894 * child, avoid syscalls as much as possible. We might've lost privileges.
897 vppcom_app_exit (void)
899 if (!pool_elts (vcm->workers))
901 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
902 vcl_set_worker_index (~0);
904 if (vec_len (vcm->workers) == 1)
905 vl_client_disconnect_from_vlib ();
907 vl_client_send_disconnect (1 /* vpp should cleanup */ );
911 * VPPCOM Public API functions
914 vppcom_app_create (char *app_name)
916 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
921 VDBG (1, "already initialized");
922 return VPPCOM_EEXIST;
926 vppcom_cfg (&vcm->cfg);
929 vcm->main_cpu = pthread_self ();
930 vcm->main_pid = getpid ();
931 vcm->app_name = format (0, "%s", app_name);
932 vppcom_init_error_string_table ();
933 svm_fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
934 20 /* timeout in secs */ );
935 pool_alloc (vcm->workers, vcl_cfg->max_workers);
936 clib_spinlock_init (&vcm->workers_lock);
937 clib_rwlock_init (&vcm->segment_table_lock);
938 atexit (vppcom_app_exit);
940 /* Allocate default worker */
941 vcl_worker_alloc_and_init ();
943 /* API hookup and connect to VPP */
944 vppcom_api_hookup ();
946 vcm->app_state = STATE_APP_START;
947 rv = vppcom_connect_to_vpp (app_name);
950 VERR ("couldn't connect to VPP!");
953 VDBG (0, "sending session enable");
954 rv = vppcom_app_session_enable ();
957 VERR ("vppcom_app_session_enable() failed!");
961 VDBG (0, "sending app attach");
962 rv = vppcom_app_attach ();
965 VERR ("vppcom_app_attach() failed!");
969 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
970 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
976 vppcom_app_destroy (void)
979 f64 orig_app_timeout;
981 if (!pool_elts (vcm->workers))
984 vcl_evt (VCL_EVT_DETACH, vcm);
986 if (pool_elts (vcm->workers) == 1)
988 vppcom_app_send_detach ();
989 orig_app_timeout = vcm->cfg.app_timeout;
990 vcm->cfg.app_timeout = 2.0;
991 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
992 vcm->cfg.app_timeout = orig_app_timeout;
993 if (PREDICT_FALSE (rv))
994 VDBG (0, "application detach timed out! returning %d (%s)", rv,
995 vppcom_retval_str (rv));
996 vec_free (vcm->app_name);
997 vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ );
1001 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1004 vcl_set_worker_index (~0);
1005 vcl_elog_stop (vcm);
1006 vl_client_disconnect_from_vlib ();
1010 vppcom_session_create (u8 proto, u8 is_nonblocking)
1012 vcl_worker_t *wrk = vcl_worker_get_current ();
1013 vcl_session_t *session;
1015 session = vcl_session_alloc (wrk);
1017 session->session_type = proto;
1018 session->session_state = STATE_START;
1019 session->vpp_handle = ~0;
1020 session->is_dgram = proto == VPPCOM_PROTO_UDP;
1023 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1025 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1026 is_nonblocking, session_index);
1028 VDBG (0, "created sid %u", session->session_index);
1030 return vcl_session_handle (session);
1034 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1035 vcl_session_handle_t sh, u8 do_disconnect)
1037 vcl_session_state_t state;
1038 u32 next_sh, vep_sh;
1043 is_vep = session->is_vep;
1044 next_sh = session->vep.next_sh;
1045 vep_sh = session->vep.vep_sh;
1046 state = session->session_state;
1047 vpp_handle = session->vpp_handle;
1049 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1053 while (next_sh != ~0)
1055 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1056 if (PREDICT_FALSE (rv < 0))
1057 VDBG (0, "vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL vep_idx %u"
1058 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1059 vppcom_retval_str (rv));
1061 next_sh = session->vep.next_sh;
1066 if (session->is_vep_session)
1068 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1070 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1071 "failed! rv %d (%s)", session->session_index, vpp_handle,
1072 vep_sh, rv, vppcom_retval_str (rv));
1077 VDBG (1, "session %u [0x%llx] disconnect skipped",
1078 session->session_index, vpp_handle);
1082 if (state & STATE_LISTEN)
1084 rv = vppcom_session_unbind (sh);
1085 if (PREDICT_FALSE (rv < 0))
1086 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1087 "rv %d (%s)", session->session_index, vpp_handle, rv,
1088 vppcom_retval_str (rv));
1091 else if (state & STATE_OPEN)
1093 rv = vppcom_session_disconnect (sh);
1094 if (PREDICT_FALSE (rv < 0))
1095 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1096 " rv %d (%s)", session->session_index, vpp_handle,
1097 rv, vppcom_retval_str (rv));
1099 else if (state == STATE_DISCONNECT)
1101 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1102 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1103 session->vpp_handle, 0);
1107 VDBG (0, "session %u [0x%llx] removed", session->session_index, vpp_handle);
1110 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1111 vcl_session_free (wrk, session);
1112 vcl_evt (VCL_EVT_CLOSE, session, rv);
1118 vppcom_session_close (uint32_t session_handle)
1120 vcl_worker_t *wrk = vcl_worker_get_current ();
1121 vcl_session_t *session;
1123 session = vcl_session_get_w_handle (wrk, session_handle);
1125 return VPPCOM_EBADFD;
1126 return vcl_session_cleanup (wrk, session, session_handle,
1127 1 /* do_disconnect */ );
1131 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1133 vcl_worker_t *wrk = vcl_worker_get_current ();
1134 vcl_session_t *session = 0;
1137 return VPPCOM_EINVAL;
1139 session = vcl_session_get_w_handle (wrk, session_handle);
1141 return VPPCOM_EBADFD;
1143 if (session->is_vep)
1145 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1146 "bind to an epoll session!", getpid (), session_handle);
1147 return VPPCOM_EBADFD;
1150 session->transport.is_ip4 = ep->is_ip4;
1152 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1153 sizeof (ip4_address_t));
1155 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1156 sizeof (ip6_address_t));
1157 session->transport.lcl_port = ep->port;
1159 VDBG (0, "VCL<%d>: sid %u: binding to local %s address %U port %u, "
1160 "proto %s", getpid (), session_handle,
1161 session->transport.is_ip4 ? "IPv4" : "IPv6",
1162 format_ip46_address, &session->transport.lcl_ip,
1163 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1164 clib_net_to_host_u16 (session->transport.lcl_port),
1165 vppcom_proto_str (session->session_type));
1166 vcl_evt (VCL_EVT_BIND, session);
1168 if (session->session_type == VPPCOM_PROTO_UDP)
1169 vppcom_session_listen (session_handle, 10);
1175 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1177 vcl_worker_t *wrk = vcl_worker_get_current ();
1178 vcl_session_t *listen_session = 0;
1179 u64 listen_vpp_handle;
1182 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1183 if (!listen_session || listen_session->is_vep)
1184 return VPPCOM_EBADFD;
1186 if (q_len == 0 || q_len == ~0)
1187 q_len = vcm->cfg.listen_queue_size;
1189 listen_vpp_handle = listen_session->vpp_handle;
1190 if (listen_session->session_state & STATE_LISTEN)
1192 VDBG (0, "session %u [0x%llx]: already in listen state!",
1193 listen_sh, listen_vpp_handle);
1197 VDBG (0, "session %u [0x%llx]: sending vpp listen request...",
1198 listen_sh, listen_vpp_handle);
1201 * Send listen request to vpp and wait for reply
1203 vppcom_send_bind_sock (listen_session);
1204 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1206 vcm->cfg.session_timeout);
1208 if (PREDICT_FALSE (rv))
1210 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1211 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1212 listen_sh, listen_session->vpp_handle, rv,
1213 vppcom_retval_str (rv));
1221 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1225 vcl_worker_t *wrk = vcl_worker_get_current ();
1226 vcl_session_t *session = 0;
1228 session = vcl_session_get_w_handle (wrk, session_handle);
1230 return VPPCOM_EBADFD;
1232 if (cert_len == 0 || cert_len == ~0)
1233 return VPPCOM_EBADFD;
1236 * Send listen request to vpp and wait for reply
1238 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1245 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1249 vcl_worker_t *wrk = vcl_worker_get_current ();
1250 vcl_session_t *session = 0;
1252 session = vcl_session_get_w_handle (wrk, session_handle);
1254 return VPPCOM_EBADFD;
1256 if (key_len == 0 || key_len == ~0)
1257 return VPPCOM_EBADFD;
1260 * Send listen request to vpp and wait for reply
1262 vppcom_send_application_tls_key_add (session, key, key_len);
1270 validate_args_session_accept_ (vcl_worker_t * wrk,
1271 vcl_session_t * listen_session)
1273 /* Input validation - expects spinlock on sessions_lockp */
1274 if (listen_session->is_vep)
1276 clib_warning ("VCL<%d>: ERROR: sid %u: cannot accept on an "
1277 "epoll session!", getpid (),
1278 listen_session->session_index);
1279 return VPPCOM_EBADFD;
1282 if (listen_session->session_state != STATE_LISTEN)
1284 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1285 "not in listen state! state 0x%x (%s)", getpid (),
1286 listen_session->vpp_handle, listen_session->session_index,
1287 listen_session->session_state,
1288 vppcom_session_state_str (listen_session->session_state));
1289 return VPPCOM_EBADFD;
1295 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1298 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1299 vcl_worker_t *wrk = vcl_worker_get_current ();
1300 session_accepted_msg_t accepted_msg;
1301 vcl_session_t *listen_session = 0;
1302 vcl_session_t *client_session = 0;
1303 vcl_session_msg_t *evt;
1304 u64 listen_vpp_handle;
1305 svm_msg_q_msg_t msg;
1310 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1311 if (!listen_session)
1312 return VPPCOM_EBADFD;
1314 listen_session_index = listen_session->session_index;
1315 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1318 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1320 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1321 accept_flags = evt->flags;
1322 accepted_msg = evt->accepted_msg;
1326 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1327 VCL_SESS_ATTR_NONBLOCK);
1328 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1329 return VPPCOM_EAGAIN;
1333 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1334 return VPPCOM_EAGAIN;
1336 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1337 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1339 clib_warning ("discarded event: %u", e->event_type);
1340 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1343 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1344 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1350 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg);
1351 listen_session = vcl_session_get (wrk, listen_session_index);
1352 client_session = vcl_session_get (wrk, client_session_index);
1354 if (flags & O_NONBLOCK)
1355 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1357 listen_vpp_handle = listen_session->vpp_handle;
1358 VDBG (1, "vpp handle 0x%llx, sid %u: Got a client request! "
1359 "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u",
1360 listen_vpp_handle, listen_session_handle,
1361 client_session->vpp_handle, client_session_index,
1362 flags, VCL_SESS_ATTR_TEST (client_session->attr,
1363 VCL_SESS_ATTR_NONBLOCK));
1367 ep->is_ip4 = client_session->transport.is_ip4;
1368 ep->port = client_session->transport.rmt_port;
1369 if (client_session->transport.is_ip4)
1370 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1371 sizeof (ip4_address_t));
1373 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1374 sizeof (ip6_address_t));
1377 vcl_send_session_accepted_reply (client_session->vpp_evt_q,
1378 client_session->client_context,
1379 client_session->vpp_handle, 0);
1381 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1382 "local: %U:%u", listen_session_handle, listen_vpp_handle,
1383 client_session_index, client_session->vpp_handle,
1384 format_ip46_address, &client_session->transport.rmt_ip,
1385 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1386 clib_net_to_host_u16 (client_session->transport.rmt_port),
1387 format_ip46_address, &client_session->transport.lcl_ip,
1388 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1389 clib_net_to_host_u16 (client_session->transport.lcl_port));
1390 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1391 client_session_index);
1394 * Session might have been closed already
1398 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1399 client_session->session_state = STATE_VPP_CLOSING;
1400 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1401 client_session->session_state = STATE_DISCONNECT;
1403 return vcl_session_handle (client_session);
1407 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1409 vcl_worker_t *wrk = vcl_worker_get_current ();
1410 vcl_session_t *session = 0;
1414 session = vcl_session_get_w_handle (wrk, session_handle);
1416 return VPPCOM_EBADFD;
1417 session_index = session->session_index;
1419 if (PREDICT_FALSE (session->is_vep))
1421 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1422 "connect on an epoll session!", getpid (),
1424 return VPPCOM_EBADFD;
1427 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1429 VDBG (0, "session handle %u [0x%llx]: session already "
1430 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1431 session_handle, session->vpp_handle,
1432 session->transport.is_ip4 ? "IPv4" : "IPv6",
1433 format_ip46_address,
1434 &session->transport.rmt_ip, session->transport.is_ip4 ?
1435 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1436 clib_net_to_host_u16 (session->transport.rmt_port),
1437 vppcom_proto_str (session->session_type), session->session_state,
1438 vppcom_session_state_str (session->session_state));
1442 session->transport.is_ip4 = server_ep->is_ip4;
1443 if (session->transport.is_ip4)
1444 clib_memcpy_fast (&session->transport.rmt_ip.ip4, server_ep->ip,
1445 sizeof (ip4_address_t));
1447 clib_memcpy_fast (&session->transport.rmt_ip.ip6, server_ep->ip,
1448 sizeof (ip6_address_t));
1449 session->transport.rmt_port = server_ep->port;
1451 VDBG (0, "session handle %u [0x%llx]: connecting to server %s %U "
1452 "port %d proto %s", session_handle, session->vpp_handle,
1453 session->transport.is_ip4 ? "IPv4" : "IPv6",
1454 format_ip46_address,
1455 &session->transport.rmt_ip, session->transport.is_ip4 ?
1456 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1457 clib_net_to_host_u16 (session->transport.rmt_port),
1458 vppcom_proto_str (session->session_type));
1461 * Send connect request and wait for reply from vpp
1463 vppcom_send_connect_sock (session);
1464 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1465 vcm->cfg.session_timeout);
1467 session = vcl_session_get (wrk, session_index);
1469 if (PREDICT_FALSE (rv))
1471 if (VPPCOM_DEBUG > 0)
1474 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: connect "
1475 "failed! returning %d (%s)", getpid (),
1476 session->vpp_handle, session_handle, rv,
1477 vppcom_retval_str (rv));
1479 clib_warning ("VCL<%d>: no session for sid %u: connect failed! "
1480 "returning %d (%s)", getpid (),
1481 session_handle, rv, vppcom_retval_str (rv));
1485 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connected!",
1486 getpid (), session->vpp_handle, session_handle);
1492 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1494 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1498 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1501 vcl_worker_t *wrk = vcl_worker_get_current ();
1502 int n_read = 0, is_nonblocking;
1503 vcl_session_t *s = 0;
1504 svm_fifo_t *rx_fifo;
1505 svm_msg_q_msg_t msg;
1510 if (PREDICT_FALSE (!buf))
1511 return VPPCOM_EINVAL;
1513 s = vcl_session_get_w_handle (wrk, session_handle);
1514 if (PREDICT_FALSE (!s || s->is_vep))
1515 return VPPCOM_EBADFD;
1517 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1519 VDBG (0, "session handle %u[0x%llx] is not open! state 0x%x (%s)",
1520 s->session_index, s->vpp_handle, s->session_state,
1521 vppcom_session_state_str (s->session_state));
1522 return vcl_session_closed_error (s);
1525 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1526 is_ct = vcl_session_is_ct (s);
1527 mq = wrk->app_event_queue;
1528 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1531 if (svm_fifo_is_empty (rx_fifo))
1535 svm_fifo_unset_event (s->rx_fifo);
1536 return VPPCOM_EWOULDBLOCK;
1538 while (svm_fifo_is_empty (rx_fifo))
1540 if (vcl_session_is_closing (s))
1541 return vcl_session_closing_error (s);
1543 svm_fifo_unset_event (s->rx_fifo);
1544 svm_msg_q_lock (mq);
1545 if (svm_msg_q_is_empty (mq))
1546 svm_msg_q_wait (mq);
1548 svm_msg_q_sub_w_lock (mq, &msg);
1549 e = svm_msg_q_msg_data (mq, &msg);
1550 svm_msg_q_unlock (mq);
1551 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1552 vcl_handle_mq_event (wrk, e);
1553 svm_msg_q_free_msg (mq, &msg);
1558 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1560 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1562 if (svm_fifo_is_empty (rx_fifo))
1563 svm_fifo_unset_event (s->rx_fifo);
1565 VDBG (2, "vpp handle 0x%llx, sid %u: read %d bytes from (%p)",
1566 s->vpp_handle, session_handle, n_read, rx_fifo);
1572 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1574 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1578 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1580 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1584 vppcom_session_read_segments (uint32_t session_handle,
1585 vppcom_data_segments_t ds)
1587 vcl_worker_t *wrk = vcl_worker_get_current ();
1588 int n_read = 0, is_nonblocking;
1589 vcl_session_t *s = 0;
1590 svm_fifo_t *rx_fifo;
1591 svm_msg_q_msg_t msg;
1596 s = vcl_session_get_w_handle (wrk, session_handle);
1597 if (PREDICT_FALSE (!s || s->is_vep))
1598 return VPPCOM_EBADFD;
1600 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1601 return vcl_session_closed_error (s);
1603 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1604 is_ct = vcl_session_is_ct (s);
1605 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1606 rx_fifo = s->rx_fifo;
1610 svm_fifo_unset_event (s->rx_fifo);
1612 if (svm_fifo_is_empty (rx_fifo))
1616 svm_fifo_unset_event (rx_fifo);
1617 return VPPCOM_EWOULDBLOCK;
1619 while (svm_fifo_is_empty (rx_fifo))
1621 if (vcl_session_is_closing (s))
1622 return vcl_session_closing_error (s);
1624 svm_fifo_unset_event (rx_fifo);
1625 svm_msg_q_lock (mq);
1626 if (svm_msg_q_is_empty (mq))
1627 svm_msg_q_wait (mq);
1629 svm_msg_q_sub_w_lock (mq, &msg);
1630 e = svm_msg_q_msg_data (mq, &msg);
1631 svm_msg_q_unlock (mq);
1632 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1633 vcl_handle_mq_event (wrk, e);
1634 svm_msg_q_free_msg (mq, &msg);
1638 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_segment_t *) ds);
1639 svm_fifo_unset_event (rx_fifo);
1645 vppcom_session_free_segments (uint32_t session_handle,
1646 vppcom_data_segments_t ds)
1648 vcl_worker_t *wrk = vcl_worker_get_current ();
1651 s = vcl_session_get_w_handle (wrk, session_handle);
1652 if (PREDICT_FALSE (!s || s->is_vep))
1655 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_segment_t *) ds);
1659 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1661 u32 first_copy = clib_min (ds[0].len, max_bytes);
1662 clib_memcpy_fast (buf, ds[0].data, first_copy);
1663 if (first_copy < max_bytes)
1665 clib_memcpy_fast (buf + first_copy, ds[1].data,
1666 clib_min (ds[1].len, max_bytes - first_copy));
1672 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1674 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
1678 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1681 vcl_worker_t *wrk = vcl_worker_get_current ();
1682 int n_write, is_nonblocking;
1683 vcl_session_t *s = 0;
1684 svm_fifo_t *tx_fifo = 0;
1685 session_evt_type_t et;
1686 svm_msg_q_msg_t msg;
1691 if (PREDICT_FALSE (!buf))
1692 return VPPCOM_EINVAL;
1694 s = vcl_session_get_w_handle (wrk, session_handle);
1695 if (PREDICT_FALSE (!s))
1696 return VPPCOM_EBADFD;
1698 if (PREDICT_FALSE (s->is_vep))
1700 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1701 " session!", s->session_index, s->vpp_handle);
1702 return VPPCOM_EBADFD;
1705 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1707 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1708 s->session_index, s->vpp_handle, s->session_state,
1709 vppcom_session_state_str (s->session_state));
1710 return vcl_session_closed_error (s);;
1713 is_ct = vcl_session_is_ct (s);
1714 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1715 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1716 mq = wrk->app_event_queue;
1717 if (svm_fifo_is_full (tx_fifo))
1721 return VPPCOM_EWOULDBLOCK;
1723 while (svm_fifo_is_full (tx_fifo))
1725 svm_fifo_add_want_tx_ntf (tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
1726 if (vcl_session_is_closing (s))
1727 return vcl_session_closing_error (s);
1728 svm_msg_q_lock (mq);
1729 if (svm_msg_q_is_empty (mq))
1730 svm_msg_q_wait (mq);
1732 svm_msg_q_sub_w_lock (mq, &msg);
1733 e = svm_msg_q_msg_data (mq, &msg);
1734 svm_msg_q_unlock (mq);
1736 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1737 vcl_handle_mq_event (wrk, e);
1738 svm_msg_q_free_msg (mq, &msg);
1742 et = SESSION_IO_EVT_TX;
1743 if (is_flush && !is_ct)
1744 et = SESSION_IO_EVT_TX_FLUSH;
1747 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1748 s->vpp_evt_q, buf, n, et,
1749 !is_ct /* do_evt */ , SVM_Q_WAIT);
1751 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1752 !is_ct /* do_evt */ , SVM_Q_WAIT);
1754 if (is_ct && svm_fifo_set_event (s->tx_fifo))
1755 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
1758 ASSERT (n_write > 0);
1760 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1761 s->vpp_handle, n_write);
1767 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1769 return vppcom_session_write_inline (session_handle, buf, n,
1774 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1776 return vppcom_session_write_inline (session_handle, buf, n,
1780 #define vcl_fifo_rx_evt_valid_or_break(_s) \
1781 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
1783 if (!vcl_session_is_ct (_s)) \
1785 svm_fifo_unset_event (_s->rx_fifo); \
1786 if (svm_fifo_is_empty (_s->rx_fifo)) \
1789 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1791 svm_fifo_unset_event (_s->ct_rx_fifo); \
1792 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
1798 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1799 unsigned long n_bits, unsigned long *read_map,
1800 unsigned long *write_map,
1801 unsigned long *except_map, u32 * bits_set)
1803 session_disconnected_msg_t *disconnected_msg;
1804 session_connected_msg_t *connected_msg;
1805 vcl_session_t *session;
1808 switch (e->event_type)
1810 case SESSION_IO_EVT_RX:
1811 sid = e->session_index;
1812 session = vcl_session_get (wrk, sid);
1813 vcl_fifo_rx_evt_valid_or_break (session);
1816 if (sid < n_bits && read_map)
1818 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1822 case SESSION_IO_EVT_TX:
1823 sid = e->session_index;
1824 session = vcl_session_get (wrk, sid);
1827 if (sid < n_bits && write_map)
1829 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
1833 case SESSION_CTRL_EVT_ACCEPTED:
1834 session = vcl_session_accepted (wrk,
1835 (session_accepted_msg_t *) e->data);
1838 sid = session->session_index;
1839 if (sid < n_bits && read_map)
1841 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1845 case SESSION_CTRL_EVT_CONNECTED:
1846 connected_msg = (session_connected_msg_t *) e->data;
1847 vcl_session_connected_handler (wrk, connected_msg);
1849 case SESSION_CTRL_EVT_DISCONNECTED:
1850 disconnected_msg = (session_disconnected_msg_t *) e->data;
1851 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
1854 sid = session->session_index;
1855 if (sid < n_bits && except_map)
1857 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1861 case SESSION_CTRL_EVT_RESET:
1862 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1863 if (sid < n_bits && except_map)
1865 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1869 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1870 vcl_session_unlisten_reply_handler (wrk, e->data);
1872 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1873 vcl_session_worker_update_reply_handler (wrk, e->data);
1875 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1876 vcl_session_req_worker_update_handler (wrk, e->data);
1879 clib_warning ("unhandled: %u", e->event_type);
1885 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1886 unsigned long n_bits, unsigned long *read_map,
1887 unsigned long *write_map, unsigned long *except_map,
1888 double time_to_wait, u32 * bits_set)
1890 svm_msg_q_msg_t *msg;
1894 svm_msg_q_lock (mq);
1895 if (svm_msg_q_is_empty (mq))
1899 svm_msg_q_unlock (mq);
1905 svm_msg_q_unlock (mq);
1908 else if (time_to_wait < 0)
1910 svm_msg_q_wait (mq);
1914 if (svm_msg_q_timedwait (mq, time_to_wait))
1916 svm_msg_q_unlock (mq);
1921 vcl_mq_dequeue_batch (wrk, mq);
1922 svm_msg_q_unlock (mq);
1924 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1926 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1927 e = svm_msg_q_msg_data (mq, msg);
1928 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
1929 except_map, bits_set);
1930 svm_msg_q_free_msg (mq, msg);
1932 vec_reset_length (wrk->mq_msg_vector);
1933 vcl_handle_pending_wrk_updates (wrk);
1938 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
1939 vcl_si_set * read_map, vcl_si_set * write_map,
1940 vcl_si_set * except_map, double time_to_wait,
1943 time_to_wait = (time_to_wait == -1) ? 1e6 : time_to_wait;
1944 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1945 write_map, except_map, (bits_set ? 0 : time_to_wait),
1951 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
1952 vcl_si_set * read_map, vcl_si_set * write_map,
1953 vcl_si_set * except_map, double time_to_wait,
1956 vcl_mq_evt_conn_t *mqc;
1957 int __clib_unused n_read;
1961 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1962 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1963 vec_len (wrk->mq_events), time_to_wait);
1964 for (i = 0; i < n_mq_evts; i++)
1966 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1967 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1968 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1969 except_map, 0, bits_set);
1972 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1976 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
1977 vcl_si_set * except_map, double time_to_wait)
1979 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1980 vcl_worker_t *wrk = vcl_worker_get_current ();
1981 vcl_session_t *session = 0;
1984 if (n_bits && read_map)
1986 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1987 clib_memcpy_fast (wrk->rd_bitmap, read_map,
1988 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1989 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1991 if (n_bits && write_map)
1993 clib_bitmap_validate (wrk->wr_bitmap, minbits);
1994 clib_memcpy_fast (wrk->wr_bitmap, write_map,
1995 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1996 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1998 if (n_bits && except_map)
2000 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2001 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2002 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2003 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2013 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2014 if (!(session = vcl_session_get (wrk, sid)))
2016 if (except_map && sid < minbits)
2017 clib_bitmap_set_no_check (except_map, sid, 1);
2021 rv = svm_fifo_is_full (session->tx_fifo);
2024 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2028 svm_fifo_add_want_tx_ntf (session->tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
2035 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2036 if (!(session = vcl_session_get (wrk, sid)))
2038 if (except_map && sid < minbits)
2039 clib_bitmap_set_no_check (except_map, sid, 1);
2043 rv = vcl_session_read_ready (session);
2046 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2054 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2056 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2057 read_map, write_map, except_map, &bits_set);
2059 vec_reset_length (wrk->unhandled_evts_vector);
2061 if (vcm->cfg.use_mq_eventfd)
2062 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2063 time_to_wait, &bits_set);
2065 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2066 time_to_wait, &bits_set);
2072 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
2074 vcl_session_t *session;
2075 vppcom_epoll_t *vep;
2078 if (VPPCOM_DEBUG <= 2)
2081 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2082 session = vcl_session_get (wrk, vep_idx);
2083 if (PREDICT_FALSE (!session))
2085 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
2086 getpid (), vep_idx);
2089 if (PREDICT_FALSE (!session->is_vep))
2091 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2092 getpid (), vep_idx);
2095 vep = &session->vep;
2096 clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n"
2099 " is_vep_session = %u\n"
2100 " next_sid = 0x%x (%u)\n"
2101 "}\n", getpid (), vep_idx,
2102 session->is_vep, session->is_vep_session,
2103 vep->next_sh, vep->next_sh);
2105 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
2107 session = vcl_session_get (wrk, sid);
2108 if (PREDICT_FALSE (!session))
2110 clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
2113 if (PREDICT_FALSE (session->is_vep))
2114 clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!",
2115 getpid (), vep_idx);
2116 else if (PREDICT_FALSE (!session->is_vep_session))
2118 clib_warning ("VCL<%d>: ERROR: session (%u) "
2119 "is not a vep session!", getpid (), sid);
2122 vep = &session->vep;
2123 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
2124 clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
2125 "vep_idx (%u)!", getpid (),
2126 sid, session->vep.vep_sh, vep_idx);
2127 if (session->is_vep_session)
2129 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
2131 " next_sid = 0x%x (%u)\n"
2132 " prev_sid = 0x%x (%u)\n"
2133 " vep_idx = 0x%x (%u)\n"
2134 " ev.events = 0x%x\n"
2135 " ev.data.u64 = 0x%llx\n"
2139 vep->next_sh, vep->next_sh,
2140 vep->prev_sh, vep->prev_sh,
2141 vep->vep_sh, vep->vep_sh,
2142 vep->ev.events, vep->ev.data.u64, vep->et_mask);
2147 clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n",
2148 getpid (), vep_idx);
2152 vppcom_epoll_create (void)
2154 vcl_worker_t *wrk = vcl_worker_get_current ();
2155 vcl_session_t *vep_session;
2157 vep_session = vcl_session_alloc (wrk);
2159 vep_session->is_vep = 1;
2160 vep_session->vep.vep_sh = ~0;
2161 vep_session->vep.next_sh = ~0;
2162 vep_session->vep.prev_sh = ~0;
2163 vep_session->vpp_handle = ~0;
2165 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2166 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2168 return vcl_session_handle (vep_session);
2172 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2173 struct epoll_event *event)
2175 vcl_worker_t *wrk = vcl_worker_get_current ();
2176 vcl_session_t *vep_session;
2177 vcl_session_t *session;
2180 if (vep_handle == session_handle)
2182 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2183 return VPPCOM_EINVAL;
2186 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2187 if (PREDICT_FALSE (!vep_session))
2189 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2190 return VPPCOM_EBADFD;
2192 if (PREDICT_FALSE (!vep_session->is_vep))
2194 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2195 return VPPCOM_EINVAL;
2198 ASSERT (vep_session->vep.vep_sh == ~0);
2199 ASSERT (vep_session->vep.prev_sh == ~0);
2201 session = vcl_session_get_w_handle (wrk, session_handle);
2202 if (PREDICT_FALSE (!session))
2204 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2205 return VPPCOM_EBADFD;
2207 if (PREDICT_FALSE (session->is_vep))
2209 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2210 return VPPCOM_EINVAL;
2216 if (PREDICT_FALSE (!event))
2218 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2219 return VPPCOM_EINVAL;
2221 if (vep_session->vep.next_sh != ~0)
2223 vcl_session_t *next_session;
2224 next_session = vcl_session_get_w_handle (wrk,
2225 vep_session->vep.next_sh);
2226 if (PREDICT_FALSE (!next_session))
2228 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sid (%u) on "
2229 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2230 return VPPCOM_EBADFD;
2232 ASSERT (next_session->vep.prev_sh == vep_handle);
2233 next_session->vep.prev_sh = session_handle;
2235 session->vep.next_sh = vep_session->vep.next_sh;
2236 session->vep.prev_sh = vep_handle;
2237 session->vep.vep_sh = vep_handle;
2238 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2239 session->vep.ev = *event;
2240 session->is_vep = 0;
2241 session->is_vep_session = 1;
2242 vep_session->vep.next_sh = session_handle;
2244 if (session->tx_fifo)
2245 svm_fifo_add_want_tx_ntf (session->tx_fifo,
2246 SVM_FIFO_WANT_TX_NOTIF_IF_FULL);
2248 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2249 vep_handle, session_handle, event->events, event->data.u64);
2250 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2254 if (PREDICT_FALSE (!event))
2256 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2260 else if (PREDICT_FALSE (!session->is_vep_session))
2262 VDBG (0, "sid %u EPOLL_CTL_MOD: not a vep session!",
2267 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2269 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2270 session_handle, session->vep.vep_sh, vep_handle);
2274 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2275 session->vep.ev = *event;
2276 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2277 vep_handle, session_handle, event->events, event->data.u64);
2281 if (PREDICT_FALSE (!session->is_vep_session))
2283 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2287 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2289 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2290 session_handle, session->vep.vep_sh, vep_handle);
2295 if (session->vep.prev_sh == vep_handle)
2296 vep_session->vep.next_sh = session->vep.next_sh;
2299 vcl_session_t *prev_session;
2300 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2301 if (PREDICT_FALSE (!prev_session))
2303 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sid (%u) on sid (%u)!",
2304 session->vep.prev_sh, session_handle);
2305 return VPPCOM_EBADFD;
2307 ASSERT (prev_session->vep.next_sh == session_handle);
2308 prev_session->vep.next_sh = session->vep.next_sh;
2310 if (session->vep.next_sh != ~0)
2312 vcl_session_t *next_session;
2313 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2314 if (PREDICT_FALSE (!next_session))
2316 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sid (%u) on sid (%u)!",
2317 session->vep.next_sh, session_handle);
2318 return VPPCOM_EBADFD;
2320 ASSERT (next_session->vep.prev_sh == session_handle);
2321 next_session->vep.prev_sh = session->vep.prev_sh;
2324 memset (&session->vep, 0, sizeof (session->vep));
2325 session->vep.next_sh = ~0;
2326 session->vep.prev_sh = ~0;
2327 session->vep.vep_sh = ~0;
2328 session->is_vep_session = 0;
2330 if (session->tx_fifo)
2331 svm_fifo_del_want_tx_ntf (session->tx_fifo, SVM_FIFO_NO_TX_NOTIF);
2333 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sid %u!", vep_handle,
2335 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2339 VDBG (0, "Invalid operation (%d)!", op);
2343 vep_verify_epoll_chain (wrk, vep_handle);
2350 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2351 struct epoll_event *events, u32 * num_ev)
2353 session_disconnected_msg_t *disconnected_msg;
2354 session_connected_msg_t *connected_msg;
2355 u32 sid = ~0, session_events;
2356 u64 session_evt_data = ~0;
2357 vcl_session_t *session;
2360 switch (e->event_type)
2362 case SESSION_IO_EVT_RX:
2363 sid = e->session_index;
2364 if (!(session = vcl_session_get (wrk, sid)))
2366 vcl_fifo_rx_evt_valid_or_break (session);
2367 session_events = session->vep.ev.events;
2368 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2371 events[*num_ev].events |= EPOLLIN;
2372 session_evt_data = session->vep.ev.data.u64;
2373 session->has_rx_evt = 1;
2375 case SESSION_IO_EVT_TX:
2376 sid = e->session_index;
2377 if (!(session = vcl_session_get (wrk, sid)))
2379 session_events = session->vep.ev.events;
2380 if (!(EPOLLOUT & session_events))
2383 events[*num_ev].events |= EPOLLOUT;
2384 session_evt_data = session->vep.ev.data.u64;
2385 svm_fifo_reset_tx_ntf (session->tx_fifo);
2387 case SESSION_CTRL_EVT_ACCEPTED:
2388 session = vcl_session_accepted (wrk,
2389 (session_accepted_msg_t *) e->data);
2393 session_events = session->vep.ev.events;
2394 if (!(EPOLLIN & session_events))
2398 events[*num_ev].events |= EPOLLIN;
2399 session_evt_data = session->vep.ev.data.u64;
2401 case SESSION_CTRL_EVT_CONNECTED:
2402 connected_msg = (session_connected_msg_t *) e->data;
2403 vcl_session_connected_handler (wrk, connected_msg);
2404 /* Generate EPOLLOUT because there's no connected event */
2405 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2406 if (!(session = vcl_session_get (wrk, sid)))
2408 session_events = session->vep.ev.events;
2409 if (!(EPOLLOUT & session_events))
2412 events[*num_ev].events |= EPOLLOUT;
2413 session_evt_data = session->vep.ev.data.u64;
2415 case SESSION_CTRL_EVT_DISCONNECTED:
2416 disconnected_msg = (session_disconnected_msg_t *) e->data;
2417 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
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_RESET:
2428 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2429 if (!(session = vcl_session_get (wrk, sid)))
2431 session_events = session->vep.ev.events;
2432 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2435 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2436 session_evt_data = session->vep.ev.data.u64;
2438 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2439 vcl_session_unlisten_reply_handler (wrk, e->data);
2441 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2442 vcl_session_req_worker_update_handler (wrk, e->data);
2444 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2445 vcl_session_worker_update_reply_handler (wrk, e->data);
2448 VDBG (0, "unhandled: %u", e->event_type);
2454 events[*num_ev].data.u64 = session_evt_data;
2455 if (EPOLLONESHOT & session_events)
2457 session = vcl_session_get (wrk, sid);
2458 session->vep.ev.events = 0;
2465 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2466 struct epoll_event *events, u32 maxevents,
2467 double wait_for_time, u32 * num_ev)
2469 svm_msg_q_msg_t *msg;
2473 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2474 goto handle_dequeued;
2476 svm_msg_q_lock (mq);
2477 if (svm_msg_q_is_empty (mq))
2481 svm_msg_q_unlock (mq);
2484 else if (wait_for_time < 0)
2486 svm_msg_q_wait (mq);
2490 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2492 svm_msg_q_unlock (mq);
2497 vcl_mq_dequeue_batch (wrk, mq);
2498 svm_msg_q_unlock (mq);
2501 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2503 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2504 e = svm_msg_q_msg_data (mq, msg);
2505 if (*num_ev < maxevents)
2506 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2508 vec_add1 (wrk->unhandled_evts_vector, *e);
2509 svm_msg_q_free_msg (mq, msg);
2511 vec_reset_length (wrk->mq_msg_vector);
2512 vcl_handle_pending_wrk_updates (wrk);
2517 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2518 int maxevents, u32 n_evts, double wait_for_time)
2520 wait_for_time = (wait_for_time == -1) ? (double) 1e6 : wait_for_time;
2521 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2522 (n_evts ? 0 : wait_for_time), &n_evts);
2527 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2528 int maxevents, u32 n_evts, double wait_for_time)
2530 vcl_mq_evt_conn_t *mqc;
2531 int __clib_unused n_read;
2535 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2537 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2538 vec_len (wrk->mq_events), wait_for_time);
2539 for (i = 0; i < n_mq_evts; i++)
2541 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2542 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2543 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2545 if (!n_evts && n_mq_evts > 0)
2548 return (int) n_evts;
2552 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2553 int maxevents, double wait_for_time)
2555 vcl_worker_t *wrk = vcl_worker_get_current ();
2556 vcl_session_t *vep_session;
2560 if (PREDICT_FALSE (maxevents <= 0))
2562 clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
2563 getpid (), maxevents);
2564 return VPPCOM_EINVAL;
2567 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2569 return VPPCOM_EBADFD;
2571 if (PREDICT_FALSE (!vep_session->is_vep))
2573 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2574 getpid (), vep_handle);
2575 return VPPCOM_EINVAL;
2578 memset (events, 0, sizeof (*events) * maxevents);
2580 if (vec_len (wrk->unhandled_evts_vector))
2582 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2584 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2586 if (n_evts == maxevents)
2592 vec_delete (wrk->unhandled_evts_vector, i, 0);
2595 if (vcm->cfg.use_mq_eventfd)
2596 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2599 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2604 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2605 void *buffer, uint32_t * buflen)
2607 vcl_worker_t *wrk = vcl_worker_get_current ();
2608 vcl_session_t *session;
2610 u32 *flags = buffer, tmp_flags = 0;
2611 vppcom_endpt_t *ep = buffer;
2613 session = vcl_session_get_w_handle (wrk, session_handle);
2615 return VPPCOM_EBADFD;
2619 case VPPCOM_ATTR_GET_NREAD:
2620 rv = vcl_session_read_ready (session);
2621 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d", rv);
2624 case VPPCOM_ATTR_GET_NWRITE:
2625 rv = vcl_session_write_ready (session);
2626 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
2627 getpid (), session_handle, rv);
2630 case VPPCOM_ATTR_GET_FLAGS:
2631 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2633 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2634 VCL_SESS_ATTR_NONBLOCK));
2635 *buflen = sizeof (*flags);
2636 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
2637 "is_nonblocking = %u", getpid (),
2638 session_handle, *flags,
2639 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2645 case VPPCOM_ATTR_SET_FLAGS:
2646 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2648 if (*flags & O_NONBLOCK)
2649 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2651 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2653 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
2654 " is_nonblocking = %u",
2655 getpid (), session_handle, *flags,
2656 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2662 case VPPCOM_ATTR_GET_PEER_ADDR:
2663 if (PREDICT_TRUE (buffer && buflen &&
2664 (*buflen >= sizeof (*ep)) && ep->ip))
2666 ep->is_ip4 = session->transport.is_ip4;
2667 ep->port = session->transport.rmt_port;
2668 if (session->transport.is_ip4)
2669 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2670 sizeof (ip4_address_t));
2672 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2673 sizeof (ip6_address_t));
2674 *buflen = sizeof (*ep);
2675 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
2676 "addr = %U, port %u", getpid (),
2677 session_handle, ep->is_ip4, format_ip46_address,
2678 &session->transport.rmt_ip,
2679 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2680 clib_net_to_host_u16 (ep->port));
2686 case VPPCOM_ATTR_GET_LCL_ADDR:
2687 if (PREDICT_TRUE (buffer && buflen &&
2688 (*buflen >= sizeof (*ep)) && ep->ip))
2690 ep->is_ip4 = session->transport.is_ip4;
2691 ep->port = session->transport.lcl_port;
2692 if (session->transport.is_ip4)
2693 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2694 sizeof (ip4_address_t));
2696 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2697 sizeof (ip6_address_t));
2698 *buflen = sizeof (*ep);
2699 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
2700 " addr = %U port %d", getpid (),
2701 session_handle, ep->is_ip4, format_ip46_address,
2702 &session->transport.lcl_ip,
2703 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2704 clib_net_to_host_u16 (ep->port));
2710 case VPPCOM_ATTR_GET_LIBC_EPFD:
2711 rv = session->libc_epfd;
2712 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
2716 case VPPCOM_ATTR_SET_LIBC_EPFD:
2717 if (PREDICT_TRUE (buffer && buflen &&
2718 (*buflen == sizeof (session->libc_epfd))))
2720 session->libc_epfd = *(int *) buffer;
2721 *buflen = sizeof (session->libc_epfd);
2723 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, "
2724 "buflen %d", getpid (), session->libc_epfd, *buflen);
2730 case VPPCOM_ATTR_GET_PROTOCOL:
2731 if (buffer && buflen && (*buflen >= sizeof (int)))
2733 *(int *) buffer = session->session_type;
2734 *buflen = sizeof (int);
2736 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2737 getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP",
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, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d",
2752 getpid (), *(int *) buffer, *buflen);
2758 case VPPCOM_ATTR_GET_ERROR:
2759 if (buffer && buflen && (*buflen >= sizeof (int)))
2761 *(int *) buffer = 0;
2762 *buflen = sizeof (int);
2764 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2765 getpid (), *(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, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
2782 "buflen %d, #VPP-TBD#", getpid (),
2783 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2789 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2790 if (buffer && buflen && (*buflen == sizeof (u32)))
2793 session->sndbuf_size = *(u32 *) buffer;
2794 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), "
2795 "buflen %d, #VPP-TBD#", getpid (),
2796 session->sndbuf_size, session->sndbuf_size, *buflen);
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, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
2813 "buflen %d, #VPP-TBD#", getpid (),
2814 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2820 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2821 if (buffer && buflen && (*buflen == sizeof (u32)))
2824 session->rcvbuf_size = *(u32 *) buffer;
2825 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), "
2826 "buflen %d, #VPP-TBD#", getpid (),
2827 session->sndbuf_size, session->sndbuf_size, *buflen);
2833 case VPPCOM_ATTR_GET_REUSEADDR:
2834 if (buffer && buflen && (*buflen >= sizeof (int)))
2837 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2838 VCL_SESS_ATTR_REUSEADDR);
2839 *buflen = sizeof (int);
2841 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
2842 "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2848 case VPPCOM_ATTR_SET_REUSEADDR:
2849 if (buffer && buflen && (*buflen == sizeof (int)) &&
2850 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2853 if (*(int *) buffer)
2854 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2856 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2858 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d,"
2859 " #VPP-TBD#", getpid (),
2860 VCL_SESS_ATTR_TEST (session->attr,
2861 VCL_SESS_ATTR_REUSEADDR), *buflen);
2867 case VPPCOM_ATTR_GET_REUSEPORT:
2868 if (buffer && buflen && (*buflen >= sizeof (int)))
2871 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2872 VCL_SESS_ATTR_REUSEPORT);
2873 *buflen = sizeof (int);
2875 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d,"
2876 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2882 case VPPCOM_ATTR_SET_REUSEPORT:
2883 if (buffer && buflen && (*buflen == sizeof (int)) &&
2884 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2887 if (*(int *) buffer)
2888 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2890 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2892 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d,"
2893 " #VPP-TBD#", getpid (),
2894 VCL_SESS_ATTR_TEST (session->attr,
2895 VCL_SESS_ATTR_REUSEPORT), *buflen);
2901 case VPPCOM_ATTR_GET_BROADCAST:
2902 if (buffer && buflen && (*buflen >= sizeof (int)))
2905 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2906 VCL_SESS_ATTR_BROADCAST);
2907 *buflen = sizeof (int);
2909 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d,"
2910 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2916 case VPPCOM_ATTR_SET_BROADCAST:
2917 if (buffer && buflen && (*buflen == sizeof (int)))
2920 if (*(int *) buffer)
2921 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2923 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2925 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, "
2926 "#VPP-TBD#", getpid (),
2927 VCL_SESS_ATTR_TEST (session->attr,
2928 VCL_SESS_ATTR_BROADCAST), *buflen);
2934 case VPPCOM_ATTR_GET_V6ONLY:
2935 if (buffer && buflen && (*buflen >= sizeof (int)))
2938 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2939 VCL_SESS_ATTR_V6ONLY);
2940 *buflen = sizeof (int);
2942 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, "
2943 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2949 case VPPCOM_ATTR_SET_V6ONLY:
2950 if (buffer && buflen && (*buflen == sizeof (int)))
2953 if (*(int *) buffer)
2954 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2956 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2958 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, "
2959 "#VPP-TBD#", getpid (),
2960 VCL_SESS_ATTR_TEST (session->attr,
2961 VCL_SESS_ATTR_V6ONLY), *buflen);
2967 case VPPCOM_ATTR_GET_KEEPALIVE:
2968 if (buffer && buflen && (*buflen >= sizeof (int)))
2971 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2972 VCL_SESS_ATTR_KEEPALIVE);
2973 *buflen = sizeof (int);
2975 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, "
2976 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2982 case VPPCOM_ATTR_SET_KEEPALIVE:
2983 if (buffer && buflen && (*buflen == sizeof (int)))
2986 if (*(int *) buffer)
2987 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2989 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2991 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, "
2992 "#VPP-TBD#", getpid (),
2993 VCL_SESS_ATTR_TEST (session->attr,
2994 VCL_SESS_ATTR_KEEPALIVE), *buflen);
3000 case VPPCOM_ATTR_GET_TCP_NODELAY:
3001 if (buffer && buflen && (*buflen >= sizeof (int)))
3004 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3005 VCL_SESS_ATTR_TCP_NODELAY);
3006 *buflen = sizeof (int);
3008 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, "
3009 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3015 case VPPCOM_ATTR_SET_TCP_NODELAY:
3016 if (buffer && buflen && (*buflen == sizeof (int)))
3019 if (*(int *) buffer)
3020 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3022 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3024 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, "
3025 "#VPP-TBD#", getpid (),
3026 VCL_SESS_ATTR_TEST (session->attr,
3027 VCL_SESS_ATTR_TCP_NODELAY), *buflen);
3033 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3034 if (buffer && buflen && (*buflen >= sizeof (int)))
3037 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3038 VCL_SESS_ATTR_TCP_KEEPIDLE);
3039 *buflen = sizeof (int);
3041 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, "
3042 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3048 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3049 if (buffer && buflen && (*buflen == sizeof (int)))
3052 if (*(int *) buffer)
3053 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3055 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3057 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, "
3058 "#VPP-TBD#", getpid (),
3059 VCL_SESS_ATTR_TEST (session->attr,
3060 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3066 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3067 if (buffer && buflen && (*buflen >= sizeof (int)))
3070 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3071 VCL_SESS_ATTR_TCP_KEEPINTVL);
3072 *buflen = sizeof (int);
3074 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, "
3075 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3081 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3082 if (buffer && buflen && (*buflen == sizeof (int)))
3085 if (*(int *) buffer)
3086 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3088 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3090 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, "
3091 "#VPP-TBD#", getpid (),
3092 VCL_SESS_ATTR_TEST (session->attr,
3093 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3099 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3100 if (buffer && buflen && (*buflen >= sizeof (u32)))
3103 *(u32 *) buffer = session->user_mss;
3104 *buflen = sizeof (int);
3106 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d,"
3107 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3113 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3114 if (buffer && buflen && (*buflen == sizeof (u32)))
3117 session->user_mss = *(u32 *) buffer;
3119 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, "
3120 "#VPP-TBD#", getpid (), session->user_mss, *buflen);
3126 case VPPCOM_ATTR_SET_SHUT:
3127 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3128 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3129 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3130 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3133 case VPPCOM_ATTR_GET_SHUT:
3134 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3136 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3139 *(int *) buffer = SHUT_RD;
3140 else if (tmp_flags == 2)
3141 *(int *) buffer = SHUT_WR;
3142 else if (tmp_flags == 3)
3143 *(int *) buffer = SHUT_RDWR;
3144 *buflen = sizeof (int);
3155 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3156 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3158 vcl_worker_t *wrk = vcl_worker_get_current ();
3160 vcl_session_t *session = 0;
3164 session = vcl_session_get_w_handle (wrk, session_handle);
3165 if (PREDICT_FALSE (!session))
3167 VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
3168 getpid (), session_handle);
3169 return VPPCOM_EBADFD;
3171 ep->is_ip4 = session->transport.is_ip4;
3172 ep->port = session->transport.rmt_port;
3176 rv = vppcom_session_read (session_handle, buffer, buflen);
3177 else if (flags & MSG_PEEK)
3178 rv = vppcom_session_peek (session_handle, buffer, buflen);
3181 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3182 return VPPCOM_EAFNOSUPPORT;
3187 if (session->transport.is_ip4)
3188 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3189 sizeof (ip4_address_t));
3191 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3192 sizeof (ip6_address_t));
3199 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3200 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3203 return VPPCOM_EINVAL;
3208 return VPPCOM_EINVAL;
3213 // TBD check the flags and do the right thing
3214 VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.",
3215 getpid (), flags, flags);
3218 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3222 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3224 vcl_worker_t *wrk = vcl_worker_get_current ();
3225 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3226 u32 i, keep_trying = 1;
3227 svm_msg_q_msg_t msg;
3231 VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
3232 getpid (), vp, n_sids, wait_for_time);
3235 return VPPCOM_EFAULT;
3239 vcl_session_t *session;
3241 /* Dequeue all events and drop all unhandled io events */
3242 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3244 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3245 vcl_handle_mq_event (wrk, e);
3246 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3248 vec_reset_length (wrk->unhandled_evts_vector);
3250 for (i = 0; i < n_sids; i++)
3252 session = vcl_session_get (wrk, vp[i].sh);
3255 vp[i].revents = POLLHUP;
3262 if (POLLIN & vp[i].events)
3264 rv = vcl_session_read_ready (session);
3267 vp[i].revents |= POLLIN;
3274 case VPPCOM_ECONNRESET:
3275 vp[i].revents = POLLHUP;
3279 vp[i].revents = POLLERR;
3286 if (POLLOUT & vp[i].events)
3288 rv = vcl_session_write_ready (session);
3291 vp[i].revents |= POLLOUT;
3298 case VPPCOM_ECONNRESET:
3299 vp[i].revents = POLLHUP;
3303 vp[i].revents = POLLERR;
3310 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3312 vp[i].revents = POLLNVAL;
3316 if (wait_for_time != -1)
3317 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3319 while ((num_ev == 0) && keep_trying);
3321 if (VPPCOM_DEBUG > 3)
3323 clib_warning ("VCL<%d>: returning %d", getpid (), num_ev);
3324 for (i = 0; i < n_sids; i++)
3326 clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
3327 ".revents 0x%x", getpid (), i, vp[i].sh, vp[i].sh,
3328 vp[i].events, vp[i].revents);
3335 vppcom_mq_epoll_fd (void)
3337 vcl_worker_t *wrk = vcl_worker_get_current ();
3338 return wrk->mqs_epfd;
3342 vppcom_session_index (vcl_session_handle_t session_handle)
3344 return session_handle & 0xFFFFFF;
3348 vppcom_session_worker (vcl_session_handle_t session_handle)
3350 return session_handle >> 24;
3354 vppcom_worker_register (void)
3356 if (!vcl_worker_alloc_and_init ())
3357 return VPPCOM_EEXIST;
3359 if (vcl_worker_set_bapi ())
3360 return VPPCOM_EEXIST;
3362 if (vcl_worker_register_with_vpp ())
3363 return VPPCOM_EEXIST;
3369 vppcom_worker_index (void)
3371 return vcl_get_worker_index ();
3375 vppcom_worker_mqs_epfd (void)
3377 vcl_worker_t *wrk = vcl_worker_get_current ();
3378 if (!vcm->cfg.use_mq_eventfd)
3380 return wrk->mqs_epfd;
3384 * fd.io coding-style-patch-verification: ON
3387 * eval: (c-set-style "gnu")