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->fifo->client_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
1495 && e->fifo->client_session_index == sid);
1499 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1502 vcl_worker_t *wrk = vcl_worker_get_current ();
1503 int n_read = 0, is_nonblocking;
1504 vcl_session_t *s = 0;
1505 svm_fifo_t *rx_fifo;
1506 svm_msg_q_msg_t msg;
1511 if (PREDICT_FALSE (!buf))
1512 return VPPCOM_EINVAL;
1514 s = vcl_session_get_w_handle (wrk, session_handle);
1515 if (PREDICT_FALSE (!s || s->is_vep))
1516 return VPPCOM_EBADFD;
1518 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1520 VDBG (0, "session handle %u[0x%llx] is not open! state 0x%x (%s)",
1521 s->session_index, s->vpp_handle, s->session_state,
1522 vppcom_session_state_str (s->session_state));
1523 return vcl_session_closed_error (s);
1526 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1527 is_ct = vcl_session_is_ct (s);
1528 mq = wrk->app_event_queue;
1529 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1533 svm_fifo_unset_event (s->rx_fifo);
1535 if (svm_fifo_is_empty (rx_fifo))
1537 svm_fifo_unset_event (rx_fifo);
1539 return VPPCOM_EWOULDBLOCK;
1540 while (svm_fifo_is_empty (rx_fifo))
1542 if (vcl_session_is_closing (s))
1543 return vcl_session_closing_error (s);
1545 svm_fifo_unset_event (rx_fifo);
1546 svm_msg_q_lock (mq);
1547 if (svm_msg_q_is_empty (mq))
1548 svm_msg_q_wait (mq);
1550 svm_msg_q_sub_w_lock (mq, &msg);
1551 e = svm_msg_q_msg_data (mq, &msg);
1552 svm_msg_q_unlock (mq);
1553 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1555 clib_warning ("THIS ONE type %u", e->event_type);
1556 vcl_handle_mq_event (wrk, e);
1558 svm_msg_q_free_msg (mq, &msg);
1563 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1565 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1567 if (svm_fifo_is_empty (rx_fifo))
1568 svm_fifo_unset_event (rx_fifo);
1570 VDBG (2, "vpp handle 0x%llx, sid %u: read %d bytes from (%p)",
1571 s->vpp_handle, session_handle, n_read, rx_fifo);
1577 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1579 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1583 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1585 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1589 vppcom_session_read_segments (uint32_t session_handle,
1590 vppcom_data_segments_t ds)
1592 vcl_worker_t *wrk = vcl_worker_get_current ();
1593 int n_read = 0, is_nonblocking;
1594 vcl_session_t *s = 0;
1595 svm_fifo_t *rx_fifo;
1596 svm_msg_q_msg_t msg;
1601 s = vcl_session_get_w_handle (wrk, session_handle);
1602 if (PREDICT_FALSE (!s || s->is_vep))
1603 return VPPCOM_EBADFD;
1605 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1606 return vcl_session_closed_error (s);
1608 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1609 is_ct = vcl_session_is_ct (s);
1610 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1611 rx_fifo = s->rx_fifo;
1615 svm_fifo_unset_event (s->rx_fifo);
1617 if (svm_fifo_is_empty (rx_fifo))
1621 svm_fifo_unset_event (rx_fifo);
1622 return VPPCOM_EWOULDBLOCK;
1624 while (svm_fifo_is_empty (rx_fifo))
1626 if (vcl_session_is_closing (s))
1627 return vcl_session_closing_error (s);
1629 svm_fifo_unset_event (rx_fifo);
1630 svm_msg_q_lock (mq);
1631 if (svm_msg_q_is_empty (mq))
1632 svm_msg_q_wait (mq);
1634 svm_msg_q_sub_w_lock (mq, &msg);
1635 e = svm_msg_q_msg_data (mq, &msg);
1636 svm_msg_q_unlock (mq);
1637 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1638 vcl_handle_mq_event (wrk, e);
1639 svm_msg_q_free_msg (mq, &msg);
1643 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_segment_t *) ds);
1644 svm_fifo_unset_event (rx_fifo);
1650 vppcom_session_free_segments (uint32_t session_handle,
1651 vppcom_data_segments_t ds)
1653 vcl_worker_t *wrk = vcl_worker_get_current ();
1656 s = vcl_session_get_w_handle (wrk, session_handle);
1657 if (PREDICT_FALSE (!s || s->is_vep))
1660 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_segment_t *) ds);
1664 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1666 u32 first_copy = clib_min (ds[0].len, max_bytes);
1667 clib_memcpy_fast (buf, ds[0].data, first_copy);
1668 if (first_copy < max_bytes)
1670 clib_memcpy_fast (buf + first_copy, ds[1].data,
1671 clib_min (ds[1].len, max_bytes - first_copy));
1677 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1679 return (e->event_type == SESSION_IO_EVT_TX
1680 && e->fifo->client_session_index == sid);
1684 vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n,
1687 vcl_worker_t *wrk = vcl_worker_get_current ();
1688 int n_write, is_nonblocking;
1689 vcl_session_t *s = 0;
1690 svm_fifo_t *tx_fifo = 0;
1691 session_evt_type_t et;
1692 svm_msg_q_msg_t msg;
1697 if (PREDICT_FALSE (!buf))
1698 return VPPCOM_EINVAL;
1700 s = vcl_session_get_w_handle (wrk, session_handle);
1701 if (PREDICT_FALSE (!s))
1702 return VPPCOM_EBADFD;
1704 if (PREDICT_FALSE (s->is_vep))
1706 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
1707 " session!", s->session_index, s->vpp_handle);
1708 return VPPCOM_EBADFD;
1711 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1713 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
1714 s->session_index, s->vpp_handle, s->session_state,
1715 vppcom_session_state_str (s->session_state));
1716 return vcl_session_closed_error (s);;
1719 is_ct = vcl_session_is_ct (s);
1720 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
1721 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1722 mq = wrk->app_event_queue;
1723 if (svm_fifo_is_full (tx_fifo))
1727 return VPPCOM_EWOULDBLOCK;
1729 while (svm_fifo_is_full (tx_fifo))
1731 svm_fifo_add_want_tx_ntf (tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
1732 if (vcl_session_is_closing (s))
1733 return vcl_session_closing_error (s);
1734 svm_msg_q_lock (mq);
1735 if (svm_msg_q_is_empty (mq))
1736 svm_msg_q_wait (mq);
1738 svm_msg_q_sub_w_lock (mq, &msg);
1739 e = svm_msg_q_msg_data (mq, &msg);
1740 svm_msg_q_unlock (mq);
1742 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1743 vcl_handle_mq_event (wrk, e);
1744 svm_msg_q_free_msg (mq, &msg);
1748 et = SESSION_IO_EVT_TX;
1749 if (is_flush && !is_ct)
1750 et = SESSION_IO_EVT_TX_FLUSH;
1753 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1754 s->vpp_evt_q, buf, n, et,
1755 !is_ct /* do_evt */ , SVM_Q_WAIT);
1757 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1758 !is_ct /* do_evt */ , SVM_Q_WAIT);
1760 if (is_ct && svm_fifo_set_event (s->tx_fifo))
1761 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo, et, SVM_Q_WAIT);
1763 ASSERT (n_write > 0);
1765 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
1766 s->vpp_handle, n_write);
1772 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1774 return vppcom_session_write_inline (session_handle, buf, n,
1779 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
1781 return vppcom_session_write_inline (session_handle, buf, n,
1785 #define vcl_fifo_rx_evt_valid_or_break(_fifo) \
1786 if (PREDICT_FALSE (svm_fifo_is_empty (_fifo))) \
1788 svm_fifo_unset_event (_fifo); \
1789 if (svm_fifo_is_empty (_fifo)) \
1794 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1795 unsigned long n_bits, unsigned long *read_map,
1796 unsigned long *write_map,
1797 unsigned long *except_map, u32 * bits_set)
1799 session_disconnected_msg_t *disconnected_msg;
1800 session_connected_msg_t *connected_msg;
1801 vcl_session_t *session;
1804 switch (e->event_type)
1806 case FIFO_EVENT_APP_RX:
1807 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1808 sid = e->fifo->client_session_index;
1809 session = vcl_session_get (wrk, sid);
1812 if (sid < n_bits && read_map)
1814 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1818 case FIFO_EVENT_APP_TX:
1819 sid = e->fifo->client_session_index;
1820 session = vcl_session_get (wrk, sid);
1823 if (sid < n_bits && write_map)
1825 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
1829 case SESSION_CTRL_EVT_ACCEPTED:
1830 session = vcl_session_accepted (wrk,
1831 (session_accepted_msg_t *) e->data);
1834 sid = session->session_index;
1835 if (sid < n_bits && read_map)
1837 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
1841 case SESSION_CTRL_EVT_CONNECTED:
1842 connected_msg = (session_connected_msg_t *) e->data;
1843 vcl_session_connected_handler (wrk, connected_msg);
1845 case SESSION_CTRL_EVT_DISCONNECTED:
1846 disconnected_msg = (session_disconnected_msg_t *) e->data;
1847 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
1850 sid = session->session_index;
1851 if (sid < n_bits && except_map)
1853 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1857 case SESSION_CTRL_EVT_RESET:
1858 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1859 if (sid < n_bits && except_map)
1861 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
1865 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1866 vcl_session_unlisten_reply_handler (wrk, e->data);
1868 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1869 vcl_session_worker_update_reply_handler (wrk, e->data);
1871 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1872 vcl_session_req_worker_update_handler (wrk, e->data);
1875 clib_warning ("unhandled: %u", e->event_type);
1881 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1882 unsigned long n_bits, unsigned long *read_map,
1883 unsigned long *write_map, unsigned long *except_map,
1884 double time_to_wait, u32 * bits_set)
1886 svm_msg_q_msg_t *msg;
1890 svm_msg_q_lock (mq);
1891 if (svm_msg_q_is_empty (mq))
1895 svm_msg_q_unlock (mq);
1901 svm_msg_q_unlock (mq);
1904 else if (time_to_wait < 0)
1906 svm_msg_q_wait (mq);
1910 if (svm_msg_q_timedwait (mq, time_to_wait))
1912 svm_msg_q_unlock (mq);
1917 vcl_mq_dequeue_batch (wrk, mq);
1918 svm_msg_q_unlock (mq);
1920 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1922 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1923 e = svm_msg_q_msg_data (mq, msg);
1924 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
1925 except_map, bits_set);
1926 svm_msg_q_free_msg (mq, msg);
1928 vec_reset_length (wrk->mq_msg_vector);
1929 vcl_handle_pending_wrk_updates (wrk);
1934 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
1935 vcl_si_set * read_map, vcl_si_set * write_map,
1936 vcl_si_set * except_map, double time_to_wait,
1939 time_to_wait = (time_to_wait == -1) ? 1e6 : time_to_wait;
1940 return vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1941 write_map, except_map, time_to_wait, bits_set);
1945 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
1946 vcl_si_set * read_map, vcl_si_set * write_map,
1947 vcl_si_set * except_map, double time_to_wait,
1950 vcl_mq_evt_conn_t *mqc;
1951 int __clib_unused n_read;
1955 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1956 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1957 vec_len (wrk->mq_events), time_to_wait);
1958 for (i = 0; i < n_mq_evts; i++)
1960 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1961 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1962 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1963 except_map, 0, bits_set);
1966 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1970 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
1971 vcl_si_set * except_map, double time_to_wait)
1973 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1974 vcl_worker_t *wrk = vcl_worker_get_current ();
1975 vcl_session_t *session = 0;
1978 if (n_bits && read_map)
1980 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1981 clib_memcpy_fast (wrk->rd_bitmap, read_map,
1982 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1983 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
1985 if (n_bits && write_map)
1987 clib_bitmap_validate (wrk->wr_bitmap, minbits);
1988 clib_memcpy_fast (wrk->wr_bitmap, write_map,
1989 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1990 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
1992 if (n_bits && except_map)
1994 clib_bitmap_validate (wrk->ex_bitmap, minbits);
1995 clib_memcpy_fast (wrk->ex_bitmap, except_map,
1996 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
1997 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2007 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2008 if (!(session = vcl_session_get (wrk, sid)))
2010 if (except_map && sid < minbits)
2011 clib_bitmap_set_no_check (except_map, sid, 1);
2015 rv = svm_fifo_is_full (session->tx_fifo);
2018 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2022 svm_fifo_add_want_tx_ntf (session->tx_fifo, SVM_FIFO_WANT_TX_NOTIF);
2029 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2030 if (!(session = vcl_session_get (wrk, sid)))
2032 if (except_map && sid < minbits)
2033 clib_bitmap_set_no_check (except_map, sid, 1);
2037 rv = vcl_session_read_ready (session);
2040 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2048 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2050 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2051 read_map, write_map, except_map, &bits_set);
2053 vec_reset_length (wrk->unhandled_evts_vector);
2055 if (vcm->cfg.use_mq_eventfd)
2056 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2057 time_to_wait, &bits_set);
2059 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2060 time_to_wait, &bits_set);
2066 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
2068 vcl_session_t *session;
2069 vppcom_epoll_t *vep;
2072 if (VPPCOM_DEBUG <= 1)
2075 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2076 session = vcl_session_get (wrk, vep_idx);
2077 if (PREDICT_FALSE (!session))
2079 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
2080 getpid (), vep_idx);
2083 if (PREDICT_FALSE (!session->is_vep))
2085 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2086 getpid (), vep_idx);
2089 vep = &session->vep;
2090 clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n"
2093 " is_vep_session = %u\n"
2094 " next_sid = 0x%x (%u)\n"
2095 "}\n", getpid (), vep_idx,
2096 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 clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
2107 if (PREDICT_FALSE (session->is_vep))
2108 clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!",
2109 getpid (), vep_idx);
2110 else if (PREDICT_FALSE (!session->is_vep_session))
2112 clib_warning ("VCL<%d>: ERROR: session (%u) "
2113 "is not a vep session!", getpid (), sid);
2116 vep = &session->vep;
2117 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
2118 clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
2119 "vep_idx (%u)!", getpid (),
2120 sid, session->vep.vep_sh, vep_idx);
2121 if (session->is_vep_session)
2123 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
2125 " next_sid = 0x%x (%u)\n"
2126 " prev_sid = 0x%x (%u)\n"
2127 " vep_idx = 0x%x (%u)\n"
2128 " ev.events = 0x%x\n"
2129 " ev.data.u64 = 0x%llx\n"
2133 vep->next_sh, vep->next_sh,
2134 vep->prev_sh, vep->prev_sh,
2135 vep->vep_sh, vep->vep_sh,
2136 vep->ev.events, vep->ev.data.u64, vep->et_mask);
2141 clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n",
2142 getpid (), vep_idx);
2146 vppcom_epoll_create (void)
2148 vcl_worker_t *wrk = vcl_worker_get_current ();
2149 vcl_session_t *vep_session;
2151 vep_session = vcl_session_alloc (wrk);
2153 vep_session->is_vep = 1;
2154 vep_session->vep.vep_sh = ~0;
2155 vep_session->vep.next_sh = ~0;
2156 vep_session->vep.prev_sh = ~0;
2157 vep_session->vpp_handle = ~0;
2159 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2160 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2162 return vcl_session_handle (vep_session);
2166 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2167 struct epoll_event *event)
2169 vcl_worker_t *wrk = vcl_worker_get_current ();
2170 vcl_session_t *vep_session;
2171 vcl_session_t *session;
2174 if (vep_handle == session_handle)
2176 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2177 return VPPCOM_EINVAL;
2180 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2181 if (PREDICT_FALSE (!vep_session))
2183 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2184 return VPPCOM_EBADFD;
2186 if (PREDICT_FALSE (!vep_session->is_vep))
2188 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2189 return VPPCOM_EINVAL;
2192 ASSERT (vep_session->vep.vep_sh == ~0);
2193 ASSERT (vep_session->vep.prev_sh == ~0);
2195 session = vcl_session_get_w_handle (wrk, session_handle);
2196 if (PREDICT_FALSE (!session))
2198 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2199 return VPPCOM_EBADFD;
2201 if (PREDICT_FALSE (session->is_vep))
2203 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2204 return VPPCOM_EINVAL;
2210 if (PREDICT_FALSE (!event))
2212 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2213 return VPPCOM_EINVAL;
2215 if (vep_session->vep.next_sh != ~0)
2217 vcl_session_t *next_session;
2218 next_session = vcl_session_get_w_handle (wrk,
2219 vep_session->vep.next_sh);
2220 if (PREDICT_FALSE (!next_session))
2222 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sid (%u) on "
2223 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2224 return VPPCOM_EBADFD;
2226 ASSERT (next_session->vep.prev_sh == vep_handle);
2227 next_session->vep.prev_sh = session_handle;
2229 session->vep.next_sh = vep_session->vep.next_sh;
2230 session->vep.prev_sh = vep_handle;
2231 session->vep.vep_sh = vep_handle;
2232 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2233 session->vep.ev = *event;
2234 session->is_vep = 0;
2235 session->is_vep_session = 1;
2236 vep_session->vep.next_sh = session_handle;
2238 if (session->tx_fifo)
2239 svm_fifo_add_want_tx_ntf (session->tx_fifo,
2240 SVM_FIFO_WANT_TX_NOTIF_IF_FULL);
2242 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2243 vep_handle, session_handle, event->events, event->data.u64);
2244 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2248 if (PREDICT_FALSE (!event))
2250 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2254 else if (PREDICT_FALSE (!session->is_vep_session))
2256 VDBG (0, "sid %u EPOLL_CTL_MOD: not a vep session!",
2261 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2263 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2264 session_handle, session->vep.vep_sh, vep_handle);
2268 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2269 session->vep.ev = *event;
2270 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2271 vep_handle, session_handle, event->events, event->data.u64);
2275 if (PREDICT_FALSE (!session->is_vep_session))
2277 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2281 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2283 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2284 session_handle, session->vep.vep_sh, vep_handle);
2289 if (session->vep.prev_sh == vep_handle)
2290 vep_session->vep.next_sh = session->vep.next_sh;
2293 vcl_session_t *prev_session;
2294 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2295 if (PREDICT_FALSE (!prev_session))
2297 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sid (%u) on sid (%u)!",
2298 session->vep.prev_sh, session_handle);
2299 return VPPCOM_EBADFD;
2301 ASSERT (prev_session->vep.next_sh == session_handle);
2302 prev_session->vep.next_sh = session->vep.next_sh;
2304 if (session->vep.next_sh != ~0)
2306 vcl_session_t *next_session;
2307 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2308 if (PREDICT_FALSE (!next_session))
2310 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sid (%u) on sid (%u)!",
2311 session->vep.next_sh, session_handle);
2312 return VPPCOM_EBADFD;
2314 ASSERT (next_session->vep.prev_sh == session_handle);
2315 next_session->vep.prev_sh = session->vep.prev_sh;
2318 memset (&session->vep, 0, sizeof (session->vep));
2319 session->vep.next_sh = ~0;
2320 session->vep.prev_sh = ~0;
2321 session->vep.vep_sh = ~0;
2322 session->is_vep_session = 0;
2324 if (session->tx_fifo)
2325 svm_fifo_del_want_tx_ntf (session->tx_fifo, SVM_FIFO_NO_TX_NOTIF);
2327 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sid %u!", vep_handle,
2329 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2333 VDBG (0, "Invalid operation (%d)!", op);
2337 vep_verify_epoll_chain (wrk, vep_handle);
2344 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2345 struct epoll_event *events, u32 * num_ev)
2347 session_disconnected_msg_t *disconnected_msg;
2348 session_connected_msg_t *connected_msg;
2349 u32 sid = ~0, session_events;
2350 u64 session_evt_data = ~0;
2351 vcl_session_t *session;
2354 switch (e->event_type)
2356 case SESSION_IO_EVT_RX:
2357 ASSERT (e->fifo->client_thread_index == vcl_get_worker_index ());
2358 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2359 sid = e->fifo->client_session_index;
2360 if (!(session = vcl_session_get (wrk, sid)))
2362 session_events = session->vep.ev.events;
2363 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2366 events[*num_ev].events |= EPOLLIN;
2367 session_evt_data = session->vep.ev.data.u64;
2368 session->has_rx_evt = 1;
2370 case SESSION_IO_EVT_TX:
2371 sid = e->fifo->client_session_index;
2372 if (!(session = vcl_session_get (wrk, sid)))
2374 session_events = session->vep.ev.events;
2375 if (!(EPOLLOUT & session_events))
2378 events[*num_ev].events |= EPOLLOUT;
2379 session_evt_data = session->vep.ev.data.u64;
2380 svm_fifo_reset_tx_ntf (session->tx_fifo);
2382 case SESSION_CTRL_EVT_ACCEPTED:
2383 session = vcl_session_accepted (wrk,
2384 (session_accepted_msg_t *) e->data);
2388 session_events = session->vep.ev.events;
2389 if (!(EPOLLIN & session_events))
2393 events[*num_ev].events |= EPOLLIN;
2394 session_evt_data = session->vep.ev.data.u64;
2396 case SESSION_CTRL_EVT_CONNECTED:
2397 connected_msg = (session_connected_msg_t *) e->data;
2398 vcl_session_connected_handler (wrk, connected_msg);
2399 /* Generate EPOLLOUT because there's no connected event */
2400 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2401 if (!(session = vcl_session_get (wrk, sid)))
2403 session_events = session->vep.ev.events;
2404 if (!(EPOLLOUT & session_events))
2407 events[*num_ev].events |= EPOLLOUT;
2408 session_evt_data = session->vep.ev.data.u64;
2410 case SESSION_CTRL_EVT_DISCONNECTED:
2411 disconnected_msg = (session_disconnected_msg_t *) e->data;
2412 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2415 session_events = session->vep.ev.events;
2416 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2419 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2420 session_evt_data = session->vep.ev.data.u64;
2422 case SESSION_CTRL_EVT_RESET:
2423 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2424 if (!(session = vcl_session_get (wrk, sid)))
2426 session_events = session->vep.ev.events;
2427 if (!((EPOLLHUP | EPOLLRDHUP) & session_events))
2430 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2431 session_evt_data = session->vep.ev.data.u64;
2433 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2434 vcl_session_unlisten_reply_handler (wrk, e->data);
2436 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2437 vcl_session_req_worker_update_handler (wrk, e->data);
2439 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2440 vcl_session_worker_update_reply_handler (wrk, e->data);
2443 VDBG (0, "unhandled: %u", e->event_type);
2449 events[*num_ev].data.u64 = session_evt_data;
2450 if (EPOLLONESHOT & session_events)
2452 session = vcl_session_get (wrk, sid);
2453 session->vep.ev.events = 0;
2460 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2461 struct epoll_event *events, u32 maxevents,
2462 double wait_for_time, u32 * num_ev)
2464 svm_msg_q_msg_t *msg;
2468 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2469 goto handle_dequeued;
2471 svm_msg_q_lock (mq);
2472 if (svm_msg_q_is_empty (mq))
2476 svm_msg_q_unlock (mq);
2479 else if (wait_for_time < 0)
2481 svm_msg_q_wait (mq);
2485 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2487 svm_msg_q_unlock (mq);
2492 vcl_mq_dequeue_batch (wrk, mq);
2493 svm_msg_q_unlock (mq);
2496 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2498 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2499 e = svm_msg_q_msg_data (mq, msg);
2500 if (*num_ev < maxevents)
2501 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2503 vec_add1 (wrk->unhandled_evts_vector, *e);
2504 svm_msg_q_free_msg (mq, msg);
2506 vec_reset_length (wrk->mq_msg_vector);
2507 vcl_handle_pending_wrk_updates (wrk);
2512 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2513 int maxevents, u32 n_evts, double wait_for_time)
2515 wait_for_time = (wait_for_time == -1) ? (double) 1e6 : wait_for_time;
2516 return vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events,
2517 maxevents, wait_for_time, &n_evts);
2521 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2522 int maxevents, u32 n_evts, double wait_for_time)
2524 vcl_mq_evt_conn_t *mqc;
2525 int __clib_unused n_read;
2529 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2531 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2532 vec_len (wrk->mq_events), wait_for_time);
2533 for (i = 0; i < n_mq_evts; i++)
2535 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2536 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2537 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2539 if (!n_evts && n_mq_evts > 0)
2542 return (int) n_evts;
2546 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2547 int maxevents, double wait_for_time)
2549 vcl_worker_t *wrk = vcl_worker_get_current ();
2550 vcl_session_t *vep_session;
2554 if (PREDICT_FALSE (maxevents <= 0))
2556 clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
2557 getpid (), maxevents);
2558 return VPPCOM_EINVAL;
2561 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2563 return VPPCOM_EBADFD;
2565 if (PREDICT_FALSE (!vep_session->is_vep))
2567 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2568 getpid (), vep_handle);
2569 return VPPCOM_EINVAL;
2572 memset (events, 0, sizeof (*events) * maxevents);
2574 if (vec_len (wrk->unhandled_evts_vector))
2576 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2578 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2580 if (n_evts == maxevents)
2587 vec_delete (wrk->unhandled_evts_vector, i, 0);
2590 if (vcm->cfg.use_mq_eventfd)
2591 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2594 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2599 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2600 void *buffer, uint32_t * buflen)
2602 vcl_worker_t *wrk = vcl_worker_get_current ();
2603 vcl_session_t *session;
2605 u32 *flags = buffer, tmp_flags = 0;
2606 vppcom_endpt_t *ep = buffer;
2608 session = vcl_session_get_w_handle (wrk, session_handle);
2610 return VPPCOM_EBADFD;
2614 case VPPCOM_ATTR_GET_NREAD:
2615 rv = vcl_session_read_ready (session);
2616 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d", rv);
2619 case VPPCOM_ATTR_GET_NWRITE:
2620 rv = vcl_session_write_ready (session);
2621 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
2622 getpid (), session_handle, rv);
2625 case VPPCOM_ATTR_GET_FLAGS:
2626 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2628 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2629 VCL_SESS_ATTR_NONBLOCK));
2630 *buflen = sizeof (*flags);
2631 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
2632 "is_nonblocking = %u", getpid (),
2633 session_handle, *flags,
2634 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2640 case VPPCOM_ATTR_SET_FLAGS:
2641 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2643 if (*flags & O_NONBLOCK)
2644 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2646 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2648 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
2649 " is_nonblocking = %u",
2650 getpid (), session_handle, *flags,
2651 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2657 case VPPCOM_ATTR_GET_PEER_ADDR:
2658 if (PREDICT_TRUE (buffer && buflen &&
2659 (*buflen >= sizeof (*ep)) && ep->ip))
2661 ep->is_ip4 = session->transport.is_ip4;
2662 ep->port = session->transport.rmt_port;
2663 if (session->transport.is_ip4)
2664 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2665 sizeof (ip4_address_t));
2667 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2668 sizeof (ip6_address_t));
2669 *buflen = sizeof (*ep);
2670 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
2671 "addr = %U, port %u", getpid (),
2672 session_handle, ep->is_ip4, format_ip46_address,
2673 &session->transport.rmt_ip,
2674 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2675 clib_net_to_host_u16 (ep->port));
2681 case VPPCOM_ATTR_GET_LCL_ADDR:
2682 if (PREDICT_TRUE (buffer && buflen &&
2683 (*buflen >= sizeof (*ep)) && ep->ip))
2685 ep->is_ip4 = session->transport.is_ip4;
2686 ep->port = session->transport.lcl_port;
2687 if (session->transport.is_ip4)
2688 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2689 sizeof (ip4_address_t));
2691 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2692 sizeof (ip6_address_t));
2693 *buflen = sizeof (*ep);
2694 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
2695 " addr = %U port %d", getpid (),
2696 session_handle, ep->is_ip4, format_ip46_address,
2697 &session->transport.lcl_ip,
2698 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2699 clib_net_to_host_u16 (ep->port));
2705 case VPPCOM_ATTR_GET_LIBC_EPFD:
2706 rv = session->libc_epfd;
2707 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
2711 case VPPCOM_ATTR_SET_LIBC_EPFD:
2712 if (PREDICT_TRUE (buffer && buflen &&
2713 (*buflen == sizeof (session->libc_epfd))))
2715 session->libc_epfd = *(int *) buffer;
2716 *buflen = sizeof (session->libc_epfd);
2718 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, "
2719 "buflen %d", getpid (), session->libc_epfd, *buflen);
2725 case VPPCOM_ATTR_GET_PROTOCOL:
2726 if (buffer && buflen && (*buflen >= sizeof (int)))
2728 *(int *) buffer = session->session_type;
2729 *buflen = sizeof (int);
2731 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2732 getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP",
2739 case VPPCOM_ATTR_GET_LISTEN:
2740 if (buffer && buflen && (*buflen >= sizeof (int)))
2742 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2743 VCL_SESS_ATTR_LISTEN);
2744 *buflen = sizeof (int);
2746 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d",
2747 getpid (), *(int *) buffer, *buflen);
2753 case VPPCOM_ATTR_GET_ERROR:
2754 if (buffer && buflen && (*buflen >= sizeof (int)))
2756 *(int *) buffer = 0;
2757 *buflen = sizeof (int);
2759 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2760 getpid (), *(int *) buffer, *buflen);
2766 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2767 if (buffer && buflen && (*buflen >= sizeof (u32)))
2771 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2772 session->tx_fifo ? session->tx_fifo->nitems :
2773 vcm->cfg.tx_fifo_size);
2774 *buflen = sizeof (u32);
2776 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
2777 "buflen %d, #VPP-TBD#", getpid (),
2778 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2784 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2785 if (buffer && buflen && (*buflen == sizeof (u32)))
2788 session->sndbuf_size = *(u32 *) buffer;
2789 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), "
2790 "buflen %d, #VPP-TBD#", getpid (),
2791 session->sndbuf_size, session->sndbuf_size, *buflen);
2797 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2798 if (buffer && buflen && (*buflen >= sizeof (u32)))
2802 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2803 session->rx_fifo ? session->rx_fifo->nitems :
2804 vcm->cfg.rx_fifo_size);
2805 *buflen = sizeof (u32);
2807 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
2808 "buflen %d, #VPP-TBD#", getpid (),
2809 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2815 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2816 if (buffer && buflen && (*buflen == sizeof (u32)))
2819 session->rcvbuf_size = *(u32 *) buffer;
2820 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), "
2821 "buflen %d, #VPP-TBD#", getpid (),
2822 session->sndbuf_size, session->sndbuf_size, *buflen);
2828 case VPPCOM_ATTR_GET_REUSEADDR:
2829 if (buffer && buflen && (*buflen >= sizeof (int)))
2832 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2833 VCL_SESS_ATTR_REUSEADDR);
2834 *buflen = sizeof (int);
2836 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
2837 "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2843 case VPPCOM_ATTR_SET_REUSEADDR:
2844 if (buffer && buflen && (*buflen == sizeof (int)) &&
2845 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2848 if (*(int *) buffer)
2849 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2851 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2853 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d,"
2854 " #VPP-TBD#", getpid (),
2855 VCL_SESS_ATTR_TEST (session->attr,
2856 VCL_SESS_ATTR_REUSEADDR), *buflen);
2862 case VPPCOM_ATTR_GET_REUSEPORT:
2863 if (buffer && buflen && (*buflen >= sizeof (int)))
2866 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2867 VCL_SESS_ATTR_REUSEPORT);
2868 *buflen = sizeof (int);
2870 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d,"
2871 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2877 case VPPCOM_ATTR_SET_REUSEPORT:
2878 if (buffer && buflen && (*buflen == sizeof (int)) &&
2879 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2882 if (*(int *) buffer)
2883 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2885 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2887 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d,"
2888 " #VPP-TBD#", getpid (),
2889 VCL_SESS_ATTR_TEST (session->attr,
2890 VCL_SESS_ATTR_REUSEPORT), *buflen);
2896 case VPPCOM_ATTR_GET_BROADCAST:
2897 if (buffer && buflen && (*buflen >= sizeof (int)))
2900 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2901 VCL_SESS_ATTR_BROADCAST);
2902 *buflen = sizeof (int);
2904 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d,"
2905 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2911 case VPPCOM_ATTR_SET_BROADCAST:
2912 if (buffer && buflen && (*buflen == sizeof (int)))
2915 if (*(int *) buffer)
2916 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2918 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2920 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, "
2921 "#VPP-TBD#", getpid (),
2922 VCL_SESS_ATTR_TEST (session->attr,
2923 VCL_SESS_ATTR_BROADCAST), *buflen);
2929 case VPPCOM_ATTR_GET_V6ONLY:
2930 if (buffer && buflen && (*buflen >= sizeof (int)))
2933 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2934 VCL_SESS_ATTR_V6ONLY);
2935 *buflen = sizeof (int);
2937 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, "
2938 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2944 case VPPCOM_ATTR_SET_V6ONLY:
2945 if (buffer && buflen && (*buflen == sizeof (int)))
2948 if (*(int *) buffer)
2949 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2951 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2953 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, "
2954 "#VPP-TBD#", getpid (),
2955 VCL_SESS_ATTR_TEST (session->attr,
2956 VCL_SESS_ATTR_V6ONLY), *buflen);
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, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, "
2971 "#VPP-TBD#", getpid (), *(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, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, "
2987 "#VPP-TBD#", getpid (),
2988 VCL_SESS_ATTR_TEST (session->attr,
2989 VCL_SESS_ATTR_KEEPALIVE), *buflen);
2995 case VPPCOM_ATTR_GET_TCP_NODELAY:
2996 if (buffer && buflen && (*buflen >= sizeof (int)))
2999 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3000 VCL_SESS_ATTR_TCP_NODELAY);
3001 *buflen = sizeof (int);
3003 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, "
3004 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3010 case VPPCOM_ATTR_SET_TCP_NODELAY:
3011 if (buffer && buflen && (*buflen == sizeof (int)))
3014 if (*(int *) buffer)
3015 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3017 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3019 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, "
3020 "#VPP-TBD#", getpid (),
3021 VCL_SESS_ATTR_TEST (session->attr,
3022 VCL_SESS_ATTR_TCP_NODELAY), *buflen);
3028 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3029 if (buffer && buflen && (*buflen >= sizeof (int)))
3032 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3033 VCL_SESS_ATTR_TCP_KEEPIDLE);
3034 *buflen = sizeof (int);
3036 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, "
3037 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3043 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3044 if (buffer && buflen && (*buflen == sizeof (int)))
3047 if (*(int *) buffer)
3048 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3050 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3052 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, "
3053 "#VPP-TBD#", getpid (),
3054 VCL_SESS_ATTR_TEST (session->attr,
3055 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3061 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3062 if (buffer && buflen && (*buflen >= sizeof (int)))
3065 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3066 VCL_SESS_ATTR_TCP_KEEPINTVL);
3067 *buflen = sizeof (int);
3069 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, "
3070 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3076 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3077 if (buffer && buflen && (*buflen == sizeof (int)))
3080 if (*(int *) buffer)
3081 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3083 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3085 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, "
3086 "#VPP-TBD#", getpid (),
3087 VCL_SESS_ATTR_TEST (session->attr,
3088 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3094 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3095 if (buffer && buflen && (*buflen >= sizeof (u32)))
3098 *(u32 *) buffer = session->user_mss;
3099 *buflen = sizeof (int);
3101 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d,"
3102 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3108 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3109 if (buffer && buflen && (*buflen == sizeof (u32)))
3112 session->user_mss = *(u32 *) buffer;
3114 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, "
3115 "#VPP-TBD#", getpid (), session->user_mss, *buflen);
3121 case VPPCOM_ATTR_SET_SHUT:
3122 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3123 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3124 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3125 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3128 case VPPCOM_ATTR_GET_SHUT:
3129 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3131 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3134 *(int *) buffer = SHUT_RD;
3135 else if (tmp_flags == 2)
3136 *(int *) buffer = SHUT_WR;
3137 else if (tmp_flags == 3)
3138 *(int *) buffer = SHUT_RDWR;
3139 *buflen = sizeof (int);
3150 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3151 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3153 vcl_worker_t *wrk = vcl_worker_get_current ();
3155 vcl_session_t *session = 0;
3159 session = vcl_session_get_w_handle (wrk, session_handle);
3160 if (PREDICT_FALSE (!session))
3162 VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
3163 getpid (), session_handle);
3164 return VPPCOM_EBADFD;
3166 ep->is_ip4 = session->transport.is_ip4;
3167 ep->port = session->transport.rmt_port;
3171 rv = vppcom_session_read (session_handle, buffer, buflen);
3172 else if (flags & MSG_PEEK)
3173 rv = vppcom_session_peek (session_handle, buffer, buflen);
3176 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3177 return VPPCOM_EAFNOSUPPORT;
3182 if (session->transport.is_ip4)
3183 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3184 sizeof (ip4_address_t));
3186 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3187 sizeof (ip6_address_t));
3194 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3195 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3198 return VPPCOM_EINVAL;
3203 return VPPCOM_EINVAL;
3208 // TBD check the flags and do the right thing
3209 VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.",
3210 getpid (), flags, flags);
3213 return (vppcom_session_write_inline (session_handle, buffer, buflen, 1));
3217 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3219 vcl_worker_t *wrk = vcl_worker_get_current ();
3220 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3221 u32 i, keep_trying = 1;
3222 svm_msg_q_msg_t msg;
3226 VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
3227 getpid (), vp, n_sids, wait_for_time);
3230 return VPPCOM_EFAULT;
3234 vcl_session_t *session;
3236 /* Dequeue all events and drop all unhandled io events */
3237 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3239 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3240 vcl_handle_mq_event (wrk, e);
3241 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3243 vec_reset_length (wrk->unhandled_evts_vector);
3245 for (i = 0; i < n_sids; i++)
3247 session = vcl_session_get (wrk, vp[i].sh);
3250 vp[i].revents = POLLHUP;
3257 if (POLLIN & vp[i].events)
3259 rv = vcl_session_read_ready (session);
3262 vp[i].revents |= POLLIN;
3269 case VPPCOM_ECONNRESET:
3270 vp[i].revents = POLLHUP;
3274 vp[i].revents = POLLERR;
3281 if (POLLOUT & vp[i].events)
3283 rv = vcl_session_write_ready (session);
3286 vp[i].revents |= POLLOUT;
3293 case VPPCOM_ECONNRESET:
3294 vp[i].revents = POLLHUP;
3298 vp[i].revents = POLLERR;
3305 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3307 vp[i].revents = POLLNVAL;
3311 if (wait_for_time != -1)
3312 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3314 while ((num_ev == 0) && keep_trying);
3316 if (VPPCOM_DEBUG > 3)
3318 clib_warning ("VCL<%d>: returning %d", getpid (), num_ev);
3319 for (i = 0; i < n_sids; i++)
3321 clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
3322 ".revents 0x%x", getpid (), i, vp[i].sh, vp[i].sh,
3323 vp[i].events, vp[i].revents);
3330 vppcom_mq_epoll_fd (void)
3332 vcl_worker_t *wrk = vcl_worker_get_current ();
3333 return wrk->mqs_epfd;
3337 vppcom_session_index (vcl_session_handle_t session_handle)
3339 return session_handle & 0xFFFFFF;
3343 vppcom_session_worker (vcl_session_handle_t session_handle)
3345 return session_handle >> 24;
3349 vppcom_worker_register (void)
3351 if (!vcl_worker_alloc_and_init ())
3352 return VPPCOM_EEXIST;
3354 if (vcl_worker_set_bapi ())
3355 return VPPCOM_EEXIST;
3357 if (vcl_worker_register_with_vpp ())
3358 return VPPCOM_EEXIST;
3364 vppcom_worker_index (void)
3366 return vcl_get_worker_index ();
3370 vppcom_worker_mqs_epfd (void)
3372 vcl_worker_t *wrk = vcl_worker_get_current ();
3373 if (!vcm->cfg.use_mq_eventfd)
3375 return wrk->mqs_epfd;
3379 * fd.io coding-style-patch-verification: ON
3382 * eval: (c-set-style "gnu")