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_event.h>
21 #include <vcl/vcl_debug.h>
22 #include <vcl/vcl_private.h>
24 __thread uword __vcl_worker_index = ~0;
29 sigsegv_signal (int signum)
35 vcl_wait_for_memory (void *mem)
37 u8 __clib_unused test;
38 if (vcm->mounting_segment)
40 while (vcm->mounting_segment)
49 if (signal (SIGSEGV, sigsegv_signal))
65 signal (SIGSEGV, SIG_DFL);
69 vppcom_session_state_str (session_state_t state)
91 case STATE_CLOSE_ON_EMPTY:
92 st = "STATE_CLOSE_ON_EMPTY";
95 case STATE_DISCONNECT:
96 st = "STATE_DISCONNECT";
104 st = "UNKNOWN_STATE";
112 format_ip4_address (u8 * s, va_list * args)
114 u8 *a = va_arg (*args, u8 *);
115 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
119 format_ip6_address (u8 * s, va_list * args)
121 ip6_address_t *a = va_arg (*args, ip6_address_t *);
122 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
124 i_max_n_zero = ARRAY_LEN (a->as_u16);
126 i_first_zero = i_max_n_zero;
128 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
130 u32 is_zero = a->as_u16[i] == 0;
131 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
137 if ((!is_zero && n_zeros > max_n_zeros)
138 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
140 i_max_n_zero = i_first_zero;
141 max_n_zeros = n_zeros;
142 i_first_zero = ARRAY_LEN (a->as_u16);
147 last_double_colon = 0;
148 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
150 if (i == i_max_n_zero && max_n_zeros > 1)
152 s = format (s, "::");
153 i += max_n_zeros - 1;
154 last_double_colon = 1;
158 s = format (s, "%s%x",
159 (last_double_colon || i == 0) ? "" : ":",
160 clib_net_to_host_u16 (a->as_u16[i]));
161 last_double_colon = 0;
168 /* Format an IP46 address. */
170 format_ip46_address (u8 * s, va_list * args)
172 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
173 ip46_type_t type = va_arg (*args, ip46_type_t);
179 is_ip4 = ip46_address_is_ip4 (ip46);
190 format (s, "%U", format_ip4_address, &ip46->ip4) :
191 format (s, "%U", format_ip6_address, &ip46->ip6);
195 * VPPCOM Utility Functions
200 vcl_session_vpp_evt_q (vcl_worker_t * wrk, vcl_session_t * s)
202 if (vcl_session_is_ct (s))
203 return wrk->vpp_event_queues[0];
205 return wrk->vpp_event_queues[s->tx_fifo->master_thread_index];
209 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
210 session_handle_t handle, int retval)
212 app_session_evt_t _app_evt, *app_evt = &_app_evt;
213 session_accepted_reply_msg_t *rmp;
214 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
215 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
216 rmp->handle = handle;
217 rmp->context = context;
218 rmp->retval = retval;
219 app_send_ctrl_evt_to_vpp (mq, app_evt);
223 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
224 session_handle_t handle, int retval)
226 app_session_evt_t _app_evt, *app_evt = &_app_evt;
227 session_disconnected_reply_msg_t *rmp;
228 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
229 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
230 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
231 rmp->handle = handle;
232 rmp->context = context;
233 rmp->retval = retval;
234 app_send_ctrl_evt_to_vpp (mq, app_evt);
238 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
239 session_handle_t handle, int retval)
241 app_session_evt_t _app_evt, *app_evt = &_app_evt;
242 session_reset_reply_msg_t *rmp;
243 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
244 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
245 rmp->handle = handle;
246 rmp->context = context;
247 rmp->retval = retval;
248 app_send_ctrl_evt_to_vpp (mq, app_evt);
252 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp)
254 vcl_session_t *session, *listen_session;
255 svm_fifo_t *rx_fifo, *tx_fifo;
259 session = vcl_session_alloc (wrk);
261 listen_session = vcl_session_table_lookup_listener (wrk,
262 mp->listener_handle);
266 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
267 clib_warning ("VCL<%d>: ERROR: couldn't find listen session: "
268 "unknown vpp listener handle %llx",
269 getpid (), mp->listener_handle);
270 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
271 VNET_API_ERROR_INVALID_ARGUMENT);
272 vcl_session_free (wrk, session);
273 return VCL_INVALID_SESSION_INDEX;
276 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
277 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
279 if (mp->server_event_queue_address)
281 session->vpp_evt_q = uword_to_pointer (mp->client_event_queue_address,
283 session->our_evt_q = uword_to_pointer (mp->server_event_queue_address,
285 vcl_wait_for_memory (session->vpp_evt_q);
286 rx_fifo->master_session_index = session->session_index;
287 tx_fifo->master_session_index = session->session_index;
288 vec_validate (wrk->vpp_event_queues, 0);
289 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
290 wrk->vpp_event_queues[0] = evt_q;
294 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
296 rx_fifo->client_session_index = session->session_index;
297 tx_fifo->client_session_index = session->session_index;
299 vpp_wrk_index = tx_fifo->master_thread_index;
300 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
301 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
304 session->vpp_handle = mp->handle;
305 session->client_context = mp->context;
306 session->rx_fifo = rx_fifo;
307 session->tx_fifo = tx_fifo;
309 session->session_state = STATE_ACCEPT;
310 session->transport.rmt_port = mp->port;
311 session->transport.is_ip4 = mp->is_ip4;
312 clib_memcpy (&session->transport.rmt_ip, mp->ip, sizeof (ip46_address_t));
314 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
315 session->transport.lcl_port = listen_session->transport.lcl_port;
316 session->transport.lcl_ip = listen_session->transport.lcl_ip;
317 session->session_type = listen_session->session_type;
318 session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
320 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s"
321 " address %U port %d queue %p!", getpid (), mp->handle,
322 session->session_index,
323 mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip,
324 mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
325 clib_net_to_host_u16 (mp->port), session->vpp_evt_q);
326 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
328 return session->session_index;
332 vcl_session_connected_handler (vcl_worker_t * wrk,
333 session_connected_msg_t * mp)
335 u32 session_index, vpp_wrk_index;
336 svm_fifo_t *rx_fifo, *tx_fifo;
337 vcl_session_t *session = 0;
340 session_index = mp->context;
341 session = vcl_session_get (wrk, session_index);
344 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
345 "Invalid session index (%u)!",
346 getpid (), mp->handle, session_index);
347 return VCL_INVALID_SESSION_INDEX;
351 clib_warning ("VCL<%d>: ERROR: sid %u: connect failed! %U", getpid (),
352 mp->handle, session_index, format_api_error,
354 session->session_state = STATE_FAILED;
355 session->vpp_handle = mp->handle;
356 return session_index;
359 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
360 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
361 vcl_wait_for_memory (rx_fifo);
362 rx_fifo->client_session_index = session_index;
363 tx_fifo->client_session_index = session_index;
365 if (mp->client_event_queue_address)
367 session->vpp_evt_q = uword_to_pointer (mp->server_event_queue_address,
369 session->our_evt_q = uword_to_pointer (mp->client_event_queue_address,
372 vec_validate (wrk->vpp_event_queues, 0);
373 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
374 wrk->vpp_event_queues[0] = evt_q;
378 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
380 vpp_wrk_index = tx_fifo->master_thread_index;
381 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
382 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
385 session->rx_fifo = rx_fifo;
386 session->tx_fifo = tx_fifo;
387 session->vpp_handle = mp->handle;
388 session->transport.is_ip4 = mp->is_ip4;
389 clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip,
390 sizeof (session->transport.lcl_ip));
391 session->transport.lcl_port = mp->lcl_port;
392 session->session_state = STATE_CONNECT;
394 /* Add it to lookup table */
395 hash_set (wrk->session_index_by_vpp_handles, mp->handle, session_index);
397 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! "
398 "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d",
399 getpid (), mp->handle, session_index, session->rx_fifo,
400 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
402 return session_index;
406 vcl_session_reset_handler (vcl_worker_t * wrk,
407 session_reset_msg_t * reset_msg)
409 vcl_session_t *session;
412 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
413 session = vcl_session_get (wrk, sid);
416 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
417 return VCL_INVALID_SESSION_INDEX;
419 session->session_state = STATE_CLOSE_ON_EMPTY;
420 VDBG (0, "reset handle 0x%llx, sid %u ", reset_msg->handle, sid);
421 vcl_send_session_reset_reply (vcl_session_vpp_evt_q (wrk, session),
422 vcm->my_client_index, reset_msg->handle, 0);
427 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
429 vcl_session_t *session;
430 u32 sid = mp->context;
432 session = vcl_session_get (wrk, sid);
435 VDBG (0, "VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: bind failed: %U",
436 getpid (), mp->handle, sid, format_api_error, ntohl (mp->retval));
439 session->session_state = STATE_FAILED;
440 session->vpp_handle = mp->handle;
445 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
446 "Invalid session index (%u)!",
447 getpid (), mp->handle, sid);
448 return VCL_INVALID_SESSION_INDEX;
452 session->vpp_handle = mp->handle;
453 session->transport.is_ip4 = mp->lcl_is_ip4;
454 clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip,
455 sizeof (ip46_address_t));
456 session->transport.lcl_port = mp->lcl_port;
457 vcl_session_table_add_listener (wrk, mp->handle, sid);
458 session->session_state = STATE_LISTEN;
460 if (session->is_dgram)
462 svm_fifo_t *rx_fifo, *tx_fifo;
463 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
464 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
465 rx_fifo->client_session_index = sid;
466 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
467 tx_fifo->client_session_index = sid;
468 session->rx_fifo = rx_fifo;
469 session->tx_fifo = tx_fifo;
472 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: bind succeeded!",
473 getpid (), mp->handle, sid);
478 vcl_handle_mq_ctrl_event (vcl_worker_t * wrk, session_event_t * e)
480 session_accepted_msg_t *accepted_msg;
481 session_disconnected_msg_t *disconnected_msg;
482 vcl_session_msg_t *vcl_msg;
483 vcl_session_t *session;
487 switch (e->event_type)
489 case FIFO_EVENT_APP_RX:
490 clib_warning ("unhandled rx: sid %u (0x%x)",
491 e->fifo->client_session_index,
492 e->fifo->client_session_index);
494 case SESSION_CTRL_EVT_ACCEPTED:
495 accepted_msg = (session_accepted_msg_t *) e->data;
496 handle = accepted_msg->listener_handle;
497 session = vcl_session_table_lookup_listener (wrk, handle);
500 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
501 "listener handle %llx", getpid (), handle);
505 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
506 vcl_msg->accepted_msg = *accepted_msg;
508 case SESSION_CTRL_EVT_CONNECTED:
509 vcl_session_connected_handler (wrk,
510 (session_connected_msg_t *) e->data);
512 case SESSION_CTRL_EVT_DISCONNECTED:
513 disconnected_msg = (session_disconnected_msg_t *) e->data;
514 sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
515 session = vcl_session_get (wrk, sid);
518 VDBG (0, "request to disconnect unknown handle 0x%llx",
519 disconnected_msg->handle);
522 session->session_state = STATE_DISCONNECT;
523 VDBG (0, "disconnected handle 0xllx, sid %u", disconnected_msg->handle,
526 case SESSION_CTRL_EVT_RESET:
527 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
529 case SESSION_CTRL_EVT_BOUND:
530 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
533 clib_warning ("unhandled %u", e->event_type);
539 vppcom_wait_for_session_state_change (u32 session_index,
540 session_state_t state,
543 vcl_worker_t *wrk = vcl_worker_get_current ();
544 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
545 vcl_session_t *volatile session;
551 session = vcl_session_get (wrk, session_index);
552 if (PREDICT_FALSE (!session))
554 return VPPCOM_EBADFD;
556 if (session->session_state & state)
560 if (session->session_state & STATE_FAILED)
562 return VPPCOM_ECONNREFUSED;
565 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
567 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
568 vcl_handle_mq_ctrl_event (wrk, e);
569 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
571 while (clib_time_now (&wrk->clib_time) < timeout);
573 VDBG (0, "VCL<%d>: timeout waiting for state 0x%x (%s)", getpid (), state,
574 vppcom_session_state_str (state));
575 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
577 return VPPCOM_ETIMEDOUT;
581 vppcom_app_session_enable (void)
585 if (vcm->app_state != STATE_APP_ENABLED)
587 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
588 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
589 if (PREDICT_FALSE (rv))
591 VDBG (0, "VCL<%d>: application session enable timed out! "
592 "returning %d (%s)", getpid (), rv, vppcom_retval_str (rv));
600 vppcom_app_attach (void)
604 vppcom_app_send_attach ();
605 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
606 if (PREDICT_FALSE (rv))
608 VDBG (0, "VCL<%d>: application attach timed out! returning %d (%s)",
609 getpid (), rv, vppcom_retval_str (rv));
617 vppcom_session_unbind (u32 session_handle)
619 vcl_worker_t *wrk = vcl_worker_get_current ();
620 vcl_session_t *session = 0;
623 session = vcl_session_get_w_handle (wrk, session_handle);
625 return VPPCOM_EBADFD;
627 vpp_handle = session->vpp_handle;
628 vcl_session_table_del_listener (wrk, vpp_handle);
629 session->vpp_handle = ~0;
630 session->session_state = STATE_DISCONNECT;
632 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending unbind msg! new state"
633 " 0x%x (%s)", getpid (), vpp_handle, session_handle, STATE_DISCONNECT,
634 vppcom_session_state_str (STATE_DISCONNECT));
635 vcl_evt (VCL_EVT_UNBIND, session);
636 vppcom_send_unbind_sock (vpp_handle);
642 vppcom_session_disconnect (u32 session_handle)
644 vcl_worker_t *wrk = vcl_worker_get_current ();
645 svm_msg_q_t *vpp_evt_q;
646 vcl_session_t *session;
647 session_state_t state;
650 session = vcl_session_get_w_handle (wrk, session_handle);
651 vpp_handle = session->vpp_handle;
652 state = session->session_state;
654 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (),
655 vpp_handle, session_handle, state, vppcom_session_state_str (state));
657 if (PREDICT_FALSE (state & STATE_LISTEN))
659 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
660 "Cannot disconnect a listen socket!",
661 getpid (), vpp_handle, session_handle);
662 return VPPCOM_EBADFD;
665 if (state & STATE_CLOSE_ON_EMPTY)
667 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
668 vcl_send_session_disconnected_reply (vpp_evt_q, vcm->my_client_index,
670 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect "
671 "REPLY...", getpid (), vpp_handle, session_handle);
675 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...",
676 getpid (), vpp_handle, session_handle);
677 vppcom_send_disconnect_session (vpp_handle);
684 * VPPCOM Public API functions
687 vppcom_app_create (char *app_name)
689 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
695 vppcom_cfg (&vcm->cfg);
698 vcm->main_cpu = pthread_self ();
699 vppcom_init_error_string_table ();
700 svm_fifo_segment_main_init (vcl_cfg->segment_baseva,
701 20 /* timeout in secs */ );
702 pool_init_fixed (vcm->workers, vcl_cfg->max_workers);
703 clib_spinlock_init (&vcm->workers_lock);
704 vcl_worker_alloc_and_init ();
707 if (vcm->my_client_index == ~0)
709 /* API hookup and connect to VPP */
710 vppcom_api_hookup ();
712 vcm->app_state = STATE_APP_START;
713 rv = vppcom_connect_to_vpp (app_name);
716 clib_warning ("VCL<%d>: ERROR: couldn't connect to VPP!",
721 VDBG (0, "VCL<%d>: sending session enable", getpid ());
722 rv = vppcom_app_session_enable ();
725 clib_warning ("VCL<%d>: ERROR: vppcom_app_session_enable() "
726 "failed!", getpid ());
730 VDBG (0, "VCL<%d>: sending app attach", getpid ());
731 rv = vppcom_app_attach ();
734 clib_warning ("VCL<%d>: ERROR: vppcom_app_attach() failed!",
739 VDBG (0, "VCL<%d>: app_name '%s', my_client_index %d (0x%x)",
740 getpid (), app_name, vcm->my_client_index, vcm->my_client_index);
747 vppcom_app_destroy (void)
750 f64 orig_app_timeout;
752 if (vcm->my_client_index == ~0)
755 VDBG (0, "VCL<%d>: detaching from VPP, my_client_index %d (0x%x)",
756 getpid (), vcm->my_client_index, vcm->my_client_index);
757 vcl_evt (VCL_EVT_DETACH, vcm);
759 vppcom_app_send_detach ();
760 orig_app_timeout = vcm->cfg.app_timeout;
761 vcm->cfg.app_timeout = 2.0;
762 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
763 vcm->cfg.app_timeout = orig_app_timeout;
764 if (PREDICT_FALSE (rv))
765 VDBG (0, "VCL<%d>: application detach timed out! returning %d (%s)",
766 getpid (), rv, vppcom_retval_str (rv));
769 vl_client_disconnect_from_vlib ();
770 vcm->my_client_index = ~0;
771 vcm->app_state = STATE_APP_START;
775 vppcom_session_create (u8 proto, u8 is_nonblocking)
777 vcl_worker_t *wrk = vcl_worker_get_current ();
778 vcl_session_t *session;
780 session = vcl_session_alloc (wrk);
782 session->session_type = proto;
783 session->session_state = STATE_START;
784 session->vpp_handle = ~0;
785 session->is_dgram = proto == VPPCOM_PROTO_UDP;
788 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
790 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
791 is_nonblocking, session_index);
793 VDBG (0, "VCL<%d>: sid %u", getpid (), session->session_index);
795 return vcl_session_handle (session);
799 vppcom_session_close (uint32_t session_handle)
801 vcl_worker_t *wrk = vcl_worker_get_current ();
802 vcl_session_t *session = 0;
803 u8 is_vep, is_vep_session;
804 session_state_t state;
809 session = vcl_session_get_w_handle (wrk, session_handle);
811 return VPPCOM_EBADFD;
813 is_vep = session->is_vep;
814 is_vep_session = session->is_vep_session;
815 next_sh = session->vep.next_sh;
816 vep_sh = session->vep.vep_sh;
817 state = session->session_state;
818 vpp_handle = session->vpp_handle;
820 if (VPPCOM_DEBUG > 0)
823 clib_warning ("VCL<%d>: vep_idx %u / sid %u: "
824 "closing epoll session...",
825 getpid (), session_handle, session_handle);
827 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %d: "
828 "closing session...",
829 getpid (), vpp_handle, session_handle);
834 while (next_sh != ~0)
836 rv = vppcom_epoll_ctl (session_handle, EPOLL_CTL_DEL, next_sh, 0);
837 if (PREDICT_FALSE (rv < 0))
838 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
839 "vep_idx %u failed! rv %d (%s)",
840 getpid (), vpp_handle, next_sh, vep_sh,
841 rv, vppcom_retval_str (rv));
843 next_sh = session->vep.next_sh;
850 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, session_handle, 0);
852 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
853 "vep_idx %u failed! rv %d (%s)",
854 getpid (), vpp_handle, session_handle,
855 vep_sh, rv, vppcom_retval_str (rv));
858 if (state & STATE_LISTEN)
860 rv = vppcom_session_unbind (session_handle);
861 if (PREDICT_FALSE (rv < 0))
862 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: listener unbind "
863 "failed! rv %d (%s)",
864 getpid (), vpp_handle, session_handle,
865 rv, vppcom_retval_str (rv));
867 else if (state & STATE_OPEN)
869 rv = vppcom_session_disconnect (session_handle);
870 if (PREDICT_FALSE (rv < 0))
871 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
872 "session disconnect failed! rv %d (%s)",
873 getpid (), vpp_handle, session_handle,
874 rv, vppcom_retval_str (rv));
878 if (vcl_session_is_ct (session))
880 vcl_cut_through_registration_t *ctr;
883 mq_addr = pointer_to_uword (session->our_evt_q);
884 ctr = vcl_ct_registration_lock_and_lookup (wrk, mq_addr);
886 if (ctr->epoll_evt_conn_index != ~0)
887 vcl_mq_epoll_del_evfd (wrk, ctr->epoll_evt_conn_index);
888 VDBG (0, "Removing ct registration %u",
889 vcl_ct_registration_index (wrk, ctr));
890 vcl_ct_registration_del (wrk, ctr);
891 vcl_ct_registration_lookup_del (wrk, mq_addr);
892 vcl_ct_registration_unlock (wrk);
895 if (vpp_handle != ~0)
897 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
899 vcl_session_free (wrk, session);
901 if (VPPCOM_DEBUG > 0)
904 clib_warning ("VCL<%d>: vep_idx %u / sid %u: epoll session removed.",
905 getpid (), session_handle, session_handle);
907 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: session removed.",
908 getpid (), vpp_handle, session_handle);
911 vcl_evt (VCL_EVT_CLOSE, session, rv);
917 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
919 vcl_worker_t *wrk = vcl_worker_get_current ();
920 vcl_session_t *session = 0;
923 return VPPCOM_EINVAL;
925 session = vcl_session_get_w_handle (wrk, session_handle);
927 return VPPCOM_EBADFD;
931 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
932 "bind to an epoll session!", getpid (), session_handle);
933 return VPPCOM_EBADFD;
936 session->transport.is_ip4 = ep->is_ip4;
938 clib_memcpy (&session->transport.lcl_ip.ip4, ep->ip,
939 sizeof (ip4_address_t));
941 clib_memcpy (&session->transport.lcl_ip.ip6, ep->ip,
942 sizeof (ip6_address_t));
943 session->transport.lcl_port = ep->port;
945 VDBG (0, "VCL<%d>: sid %u: binding to local %s address %U port %u, "
946 "proto %s", getpid (), session_handle,
947 session->transport.is_ip4 ? "IPv4" : "IPv6",
948 format_ip46_address, &session->transport.lcl_ip,
949 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
950 clib_net_to_host_u16 (session->transport.lcl_port),
951 session->session_type ? "UDP" : "TCP");
952 vcl_evt (VCL_EVT_BIND, session);
954 if (session->session_type == VPPCOM_PROTO_UDP)
955 vppcom_session_listen (session_handle, 10);
961 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
963 vcl_worker_t *wrk = vcl_worker_get_current ();
964 vcl_session_t *listen_session = 0;
965 u64 listen_vpp_handle;
968 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
970 return VPPCOM_EBADFD;
972 if (q_len == 0 || q_len == ~0)
973 q_len = vcm->cfg.listen_queue_size;
975 if (listen_session->is_vep)
977 clib_warning ("VCL<%d>: ERROR: sid %u: cannot listen on an "
978 "epoll session!", getpid (), listen_sh);
979 return VPPCOM_EBADFD;
982 listen_vpp_handle = listen_session->vpp_handle;
983 if (listen_session->session_state & STATE_LISTEN)
985 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: already in listen state!",
986 getpid (), listen_vpp_handle, listen_sh);
990 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: sending VPP bind+listen "
991 "request...", getpid (), listen_vpp_handle, listen_sh);
994 * Send listen request to vpp and wait for reply
996 vppcom_send_bind_sock (listen_session);
997 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
999 vcm->cfg.session_timeout);
1001 if (PREDICT_FALSE (rv))
1003 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1004 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: bind+listen failed! "
1005 "returning %d (%s)", getpid (), listen_session->vpp_handle,
1006 listen_sh, rv, vppcom_retval_str (rv));
1014 validate_args_session_accept_ (vcl_worker_t * wrk,
1015 vcl_session_t * listen_session)
1017 /* Input validation - expects spinlock on sessions_lockp */
1018 if (listen_session->is_vep)
1020 clib_warning ("VCL<%d>: ERROR: sid %u: cannot accept on an "
1021 "epoll session!", getpid (),
1022 listen_session->session_index);
1023 return VPPCOM_EBADFD;
1026 if (listen_session->session_state != STATE_LISTEN)
1028 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1029 "not in listen state! state 0x%x (%s)", getpid (),
1030 listen_session->vpp_handle, listen_session->session_index,
1031 listen_session->session_state,
1032 vppcom_session_state_str (listen_session->session_state));
1033 return VPPCOM_EBADFD;
1039 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1042 u32 client_session_index = ~0, listen_session_index;
1043 vcl_worker_t *wrk = vcl_worker_get_current ();
1044 session_accepted_msg_t accepted_msg;
1045 vcl_session_t *listen_session = 0;
1046 vcl_session_t *client_session = 0;
1047 svm_msg_q_t *vpp_evt_q;
1048 vcl_session_msg_t *evt;
1049 u64 listen_vpp_handle;
1050 svm_msg_q_msg_t msg;
1055 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1056 if (!listen_session)
1057 return VPPCOM_EBADFD;
1059 listen_session_index = listen_session->session_index;
1060 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1063 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1065 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1066 accepted_msg = evt->accepted_msg;
1070 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1071 VCL_SESS_ATTR_NONBLOCK);
1072 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1073 return VPPCOM_EAGAIN;
1077 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1078 return VPPCOM_EAGAIN;
1080 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1081 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1083 clib_warning ("discarded event: %u", e->event_type);
1084 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1087 clib_memcpy (&accepted_msg, e->data, sizeof (accepted_msg));
1088 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1094 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg);
1095 listen_session = vcl_session_get (wrk, listen_session_index);
1096 client_session = vcl_session_get (wrk, client_session_index);
1098 if (flags & O_NONBLOCK)
1099 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1101 listen_vpp_handle = listen_session->vpp_handle;
1102 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: Got a client request! "
1103 "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u",
1104 getpid (), listen_vpp_handle, listen_session_handle,
1105 client_session->vpp_handle, client_session_index,
1106 flags, VCL_SESS_ATTR_TEST (client_session->attr,
1107 VCL_SESS_ATTR_NONBLOCK));
1111 ep->is_ip4 = client_session->transport.is_ip4;
1112 ep->port = client_session->transport.rmt_port;
1113 if (client_session->transport.is_ip4)
1114 clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip4,
1115 sizeof (ip4_address_t));
1117 clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip6,
1118 sizeof (ip6_address_t));
1121 if (accepted_msg.server_event_queue_address)
1122 vpp_evt_q = uword_to_pointer (accepted_msg.vpp_event_queue_address,
1125 vpp_evt_q = client_session->vpp_evt_q;
1127 vcl_send_session_accepted_reply (vpp_evt_q, client_session->client_context,
1128 client_session->vpp_handle, 0);
1130 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: accepted vpp handle 0x%llx, "
1131 "sid %u connection from peer %s address %U port %u to local %s "
1132 "address %U port %u", getpid (), listen_vpp_handle,
1133 listen_session_handle, client_session->vpp_handle,
1134 client_session_index,
1135 client_session->transport.is_ip4 ? "IPv4" : "IPv6",
1136 format_ip46_address, &client_session->transport.rmt_ip,
1137 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1138 clib_net_to_host_u16 (client_session->transport.rmt_port),
1139 client_session->transport.is_ip4 ? "IPv4" : "IPv6",
1140 format_ip46_address, &client_session->transport.lcl_ip,
1141 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1142 clib_net_to_host_u16 (client_session->transport.lcl_port));
1143 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1144 client_session_index);
1146 return vcl_session_handle (client_session);
1150 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1152 vcl_worker_t *wrk = vcl_worker_get_current ();
1153 vcl_session_t *session = 0;
1157 session = vcl_session_get_w_handle (wrk, session_handle);
1159 return VPPCOM_EBADFD;
1160 session_index = session->session_index;
1162 if (PREDICT_FALSE (session->is_vep))
1164 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1165 "connect on an epoll session!", getpid (),
1167 return VPPCOM_EBADFD;
1170 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1172 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: session already "
1173 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1174 getpid (), session->vpp_handle, session_handle,
1175 session->transport.is_ip4 ? "IPv4" : "IPv6",
1176 format_ip46_address,
1177 &session->transport.rmt_ip, session->transport.is_ip4 ?
1178 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1179 clib_net_to_host_u16 (session->transport.rmt_port),
1180 session->session_type ? "UDP" : "TCP", session->session_state,
1181 vppcom_session_state_str (session->session_state));
1185 session->transport.is_ip4 = server_ep->is_ip4;
1186 if (session->transport.is_ip4)
1187 clib_memcpy (&session->transport.rmt_ip.ip4, server_ep->ip,
1188 sizeof (ip4_address_t));
1190 clib_memcpy (&session->transport.rmt_ip.ip6, server_ep->ip,
1191 sizeof (ip6_address_t));
1192 session->transport.rmt_port = server_ep->port;
1194 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connecting to server %s %U "
1196 getpid (), session->vpp_handle, session_handle,
1197 session->transport.is_ip4 ? "IPv4" : "IPv6",
1198 format_ip46_address,
1199 &session->transport.rmt_ip, session->transport.is_ip4 ?
1200 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1201 clib_net_to_host_u16 (session->transport.rmt_port),
1202 session->session_type ? "UDP" : "TCP");
1205 * Send connect request and wait for reply from vpp
1207 vppcom_send_connect_sock (session);
1208 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1209 vcm->cfg.session_timeout);
1211 session = vcl_session_get (wrk, session_index);
1213 if (PREDICT_FALSE (rv))
1215 if (VPPCOM_DEBUG > 0)
1218 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: connect "
1219 "failed! returning %d (%s)", getpid (),
1220 session->vpp_handle, session_handle, rv,
1221 vppcom_retval_str (rv));
1223 clib_warning ("VCL<%d>: no session for sid %u: connect failed! "
1224 "returning %d (%s)", getpid (),
1225 session_handle, rv, vppcom_retval_str (rv));
1229 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connected!",
1230 getpid (), session->vpp_handle, session_handle);
1236 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1239 return (e->event_type == FIFO_EVENT_APP_RX
1240 && e->fifo->client_session_index == sid);
1242 return (e->event_type == SESSION_IO_EVT_CT_TX);
1246 vcl_session_is_readable (vcl_session_t * s)
1248 return ((s->session_state & STATE_OPEN)
1249 || (s->session_state == STATE_LISTEN
1250 && s->session_type == VPPCOM_PROTO_UDP));
1254 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1257 vcl_worker_t *wrk = vcl_worker_get_current ();
1258 int n_read = 0, rv, is_nonblocking;
1259 vcl_session_t *s = 0;
1260 svm_fifo_t *rx_fifo;
1261 svm_msg_q_msg_t msg;
1266 if (PREDICT_FALSE (!buf))
1267 return VPPCOM_EINVAL;
1269 s = vcl_session_get_w_handle (wrk, session_handle);
1270 if (PREDICT_FALSE (!s))
1271 return VPPCOM_EBADFD;
1273 if (PREDICT_FALSE (s->is_vep))
1275 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1276 "read from an epoll session!", getpid (), session_handle);
1277 return VPPCOM_EBADFD;
1280 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1281 rx_fifo = s->rx_fifo;
1283 if (PREDICT_FALSE (!vcl_session_is_readable (s)))
1285 session_state_t state = s->session_state;
1286 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1288 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: %s session is not open! "
1289 "state 0x%x (%s), returning %d (%s)",
1290 getpid (), s->vpp_handle, session_handle, state,
1291 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1295 mq = vcl_session_is_ct (s) ? s->our_evt_q : wrk->app_event_queue;
1296 svm_fifo_unset_event (rx_fifo);
1297 is_full = svm_fifo_is_full (rx_fifo);
1299 if (svm_fifo_is_empty (rx_fifo))
1307 svm_msg_q_lock (mq);
1308 if (svm_msg_q_is_empty (mq))
1309 svm_msg_q_wait (mq);
1311 svm_msg_q_sub_w_lock (mq, &msg);
1312 e = svm_msg_q_msg_data (mq, &msg);
1313 svm_msg_q_unlock (mq);
1314 if (!vcl_is_rx_evt_for_session (e, s->session_index,
1317 vcl_handle_mq_ctrl_event (wrk, e);
1318 svm_msg_q_free_msg (mq, &msg);
1321 svm_fifo_unset_event (rx_fifo);
1322 svm_msg_q_free_msg (mq, &msg);
1323 if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY))
1325 if (svm_fifo_is_empty (rx_fifo))
1332 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1334 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1336 if (vcl_session_is_ct (s) && is_full)
1338 /* If the peer is not polling send notification */
1339 if (!svm_fifo_has_event (s->rx_fifo))
1340 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo,
1341 SESSION_IO_EVT_CT_RX, SVM_Q_WAIT);
1344 if (VPPCOM_DEBUG > 2)
1347 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes "
1348 "from (%p)", getpid (), s->vpp_handle,
1349 session_handle, n_read, rx_fifo);
1351 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: nothing read! "
1352 "returning %d (%s)", getpid (), s->vpp_handle,
1353 session_handle, n_read, vppcom_retval_str (n_read));
1359 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1361 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1365 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1367 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1371 vppcom_session_read_ready (vcl_session_t * session)
1373 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1374 if (PREDICT_FALSE (session->is_vep))
1376 clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an "
1377 "epoll session!", getpid (), session->session_index);
1378 return VPPCOM_EBADFD;
1381 if (PREDICT_FALSE (!(session->session_state & (STATE_OPEN | STATE_LISTEN))))
1383 session_state_t state = session->session_state;
1386 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1388 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!"
1389 " state 0x%x (%s), returning %d (%s)", getpid (),
1390 session->vpp_handle, session->session_index, state,
1391 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1395 if (session->session_state & STATE_LISTEN)
1396 return clib_fifo_elts (session->accept_evts_fifo);
1398 return svm_fifo_max_dequeue (session->rx_fifo);
1402 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1405 return (e->event_type == FIFO_EVENT_APP_TX
1406 && e->fifo->client_session_index == sid);
1408 return (e->event_type == SESSION_IO_EVT_CT_RX);
1412 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1414 vcl_worker_t *wrk = vcl_worker_get_current ();
1415 int rv, n_write, is_nonblocking;
1416 vcl_session_t *s = 0;
1417 svm_fifo_t *tx_fifo = 0;
1418 session_evt_type_t et;
1419 svm_msg_q_msg_t msg;
1423 if (PREDICT_FALSE (!buf))
1424 return VPPCOM_EINVAL;
1426 s = vcl_session_get_w_handle (wrk, session_handle);
1427 if (PREDICT_FALSE (!s))
1428 return VPPCOM_EBADFD;
1430 tx_fifo = s->tx_fifo;
1431 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1433 if (PREDICT_FALSE (s->is_vep))
1435 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1436 "cannot write to an epoll session!",
1437 getpid (), s->vpp_handle, session_handle);
1439 return VPPCOM_EBADFD;
1442 if (!(s->session_state & STATE_OPEN))
1444 session_state_t state = s->session_state;
1445 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1446 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! "
1448 getpid (), s->vpp_handle, session_handle,
1449 state, vppcom_session_state_str (state));
1453 mq = vcl_session_is_ct (s) ? s->our_evt_q : wrk->app_event_queue;
1454 if (svm_fifo_is_full (tx_fifo))
1458 return VPPCOM_EWOULDBLOCK;
1460 while (svm_fifo_is_full (tx_fifo))
1462 svm_msg_q_lock (mq);
1463 while (svm_msg_q_is_empty (mq) && svm_msg_q_timedwait (mq, 10e-6))
1465 svm_msg_q_sub_w_lock (mq, &msg);
1466 e = svm_msg_q_msg_data (mq, &msg);
1467 svm_msg_q_unlock (mq);
1469 if (!vcl_is_tx_evt_for_session (e, s->session_index,
1471 vcl_handle_mq_ctrl_event (wrk, e);
1472 svm_msg_q_free_msg (mq, &msg);
1476 ASSERT (FIFO_EVENT_APP_TX + 1 == SESSION_IO_EVT_CT_TX);
1477 et = FIFO_EVENT_APP_TX + vcl_session_is_ct (s);
1479 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1480 s->vpp_evt_q, buf, n, et, SVM_Q_WAIT);
1482 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1485 ASSERT (n_write > 0);
1487 if (VPPCOM_DEBUG > 2)
1490 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
1491 "FIFO-FULL (%p)", getpid (), s->vpp_handle,
1492 session_handle, tx_fifo);
1494 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
1495 "wrote %d bytes tx-fifo: (%p)", getpid (),
1496 s->vpp_handle, session_handle, n_write, tx_fifo);
1501 static vcl_session_t *
1502 vcl_ct_session_get_from_fifo (vcl_worker_t * wrk, svm_fifo_t * f, u8 type)
1505 s = vcl_session_get (wrk, f->client_session_index);
1509 if (type == 0 && s->rx_fifo == f)
1512 if (type == 1 && s->tx_fifo == f)
1515 s = vcl_session_get (wrk, f->master_session_index);
1518 if (type == 0 && s->rx_fifo == f)
1520 if (type == 1 && s->tx_fifo == f)
1527 vppcom_session_write_ready (vcl_session_t * session)
1529 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1530 if (PREDICT_FALSE (session->is_vep))
1532 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1533 "cannot write to an epoll session!",
1534 getpid (), session->vpp_handle, session->session_index);
1535 return VPPCOM_EBADFD;
1538 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1540 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1541 "cannot write to a listen session!",
1542 getpid (), session->vpp_handle, session->session_index);
1543 return VPPCOM_EBADFD;
1546 if (PREDICT_FALSE (!(session->session_state & STATE_OPEN)))
1548 session_state_t state = session->session_state;
1551 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1552 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1553 "session is not open! state 0x%x (%s), "
1554 "returning %d (%s)", getpid (), session->vpp_handle,
1555 session->session_index,
1556 state, vppcom_session_state_str (state),
1557 rv, vppcom_retval_str (rv));
1561 VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d",
1562 getpid (), session->vpp_handle, session->session_index,
1563 session->tx_fifo, svm_fifo_max_enqueue (session->tx_fifo));
1565 return svm_fifo_max_enqueue (session->tx_fifo);
1569 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq)
1571 svm_msg_q_msg_t *msg;
1575 n_msgs = svm_msg_q_size (mq);
1576 for (i = 0; i < n_msgs; i++)
1578 vec_add2 (wrk->mq_msg_vector, msg, 1);
1579 svm_msg_q_sub_w_lock (mq, msg);
1584 #define vcl_fifo_rx_evt_valid_or_break(_fifo) \
1585 if (PREDICT_FALSE (svm_fifo_is_empty (_fifo))) \
1587 svm_fifo_unset_event (_fifo); \
1588 if (svm_fifo_is_empty (_fifo)) \
1593 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1594 unsigned long n_bits, unsigned long *read_map,
1595 unsigned long *write_map, unsigned long *except_map,
1596 double time_to_wait, u32 * bits_set)
1598 session_disconnected_msg_t *disconnected_msg;
1599 session_connected_msg_t *connected_msg;
1600 session_accepted_msg_t *accepted_msg;
1601 vcl_session_msg_t *vcl_msg;
1602 vcl_session_t *session;
1603 svm_msg_q_msg_t *msg;
1608 svm_msg_q_lock (mq);
1609 if (svm_msg_q_is_empty (mq))
1613 svm_msg_q_unlock (mq);
1619 svm_msg_q_unlock (mq);
1622 else if (time_to_wait < 0)
1624 svm_msg_q_wait (mq);
1628 if (svm_msg_q_timedwait (mq, time_to_wait))
1630 svm_msg_q_unlock (mq);
1635 vcl_mq_dequeue_batch (wrk, mq);
1636 svm_msg_q_unlock (mq);
1638 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1640 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1641 e = svm_msg_q_msg_data (mq, msg);
1642 switch (e->event_type)
1644 case FIFO_EVENT_APP_RX:
1645 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1646 sid = e->fifo->client_session_index;
1647 session = vcl_session_get (wrk, sid);
1650 if (sid < n_bits && read_map)
1652 clib_bitmap_set_no_check (read_map, sid, 1);
1656 case FIFO_EVENT_APP_TX:
1657 sid = e->fifo->client_session_index;
1658 session = vcl_session_get (wrk, sid);
1661 if (sid < n_bits && write_map)
1663 clib_bitmap_set_no_check (write_map, sid, 1);
1667 case SESSION_IO_EVT_CT_TX:
1668 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1669 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
1672 sid = session->session_index;
1673 if (sid < n_bits && read_map)
1675 clib_bitmap_set_no_check (read_map, sid, 1);
1679 case SESSION_IO_EVT_CT_RX:
1680 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
1683 sid = session->session_index;
1684 if (sid < n_bits && write_map)
1686 clib_bitmap_set_no_check (write_map, sid, 1);
1690 case SESSION_CTRL_EVT_ACCEPTED:
1691 accepted_msg = (session_accepted_msg_t *) e->data;
1692 handle = accepted_msg->listener_handle;
1693 session = vcl_session_table_lookup_listener (wrk, handle);
1696 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
1697 "listener handle %llx", getpid (), handle);
1701 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
1702 vcl_msg->accepted_msg = *accepted_msg;
1703 sid = session->session_index;
1704 if (sid < n_bits && read_map)
1706 clib_bitmap_set_no_check (read_map, sid, 1);
1710 case SESSION_CTRL_EVT_CONNECTED:
1711 connected_msg = (session_connected_msg_t *) e->data;
1712 vcl_session_connected_handler (wrk, connected_msg);
1714 case SESSION_CTRL_EVT_DISCONNECTED:
1715 disconnected_msg = (session_disconnected_msg_t *) e->data;
1716 sid = vcl_session_index_from_vpp_handle (wrk,
1717 disconnected_msg->handle);
1718 if (sid < n_bits && except_map)
1720 clib_bitmap_set_no_check (except_map, sid, 1);
1724 case SESSION_CTRL_EVT_RESET:
1725 sid = vcl_session_reset_handler (wrk,
1726 (session_reset_msg_t *) e->data);
1727 if (sid < n_bits && except_map)
1729 clib_bitmap_set_no_check (except_map, sid, 1);
1734 clib_warning ("unhandled: %u", e->event_type);
1737 svm_msg_q_free_msg (mq, msg);
1740 vec_reset_length (wrk->mq_msg_vector);
1745 vppcom_select_condvar (vcl_worker_t * wrk, unsigned long n_bits,
1746 unsigned long *read_map, unsigned long *write_map,
1747 unsigned long *except_map, double time_to_wait,
1750 double total_wait = 0, wait_slice;
1751 vcl_cut_through_registration_t *cr;
1753 time_to_wait = (time_to_wait == -1) ? 10e9 : time_to_wait;
1754 wait_slice = wrk->cut_through_registrations ? 10e-6 : time_to_wait;
1757 vcl_ct_registration_lock (wrk);
1759 pool_foreach (cr, wrk->cut_through_registrations, ({
1760 vcl_select_handle_mq (wrk, cr->mq, n_bits, read_map, write_map, except_map,
1764 vcl_ct_registration_unlock (wrk);
1766 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1767 write_map, except_map, time_to_wait, bits_set);
1768 total_wait += wait_slice;
1772 while (total_wait < time_to_wait);
1778 vppcom_select_eventfd (vcl_worker_t * wrk, unsigned long n_bits,
1779 unsigned long *read_map, unsigned long *write_map,
1780 unsigned long *except_map, double time_to_wait,
1783 vcl_mq_evt_conn_t *mqc;
1784 int __clib_unused n_read;
1788 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1789 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1790 vec_len (wrk->mq_events), time_to_wait);
1791 for (i = 0; i < n_mq_evts; i++)
1793 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1794 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1795 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1796 except_map, 0, bits_set);
1799 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1803 vppcom_select (unsigned long n_bits, unsigned long *read_map,
1804 unsigned long *write_map, unsigned long *except_map,
1805 double time_to_wait)
1807 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1808 vcl_worker_t *wrk = vcl_worker_get_current ();
1809 vcl_session_t *session = 0;
1812 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
1814 if (n_bits && read_map)
1816 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1817 clib_memcpy (wrk->rd_bitmap, read_map,
1818 vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
1819 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
1821 if (n_bits && write_map)
1823 clib_bitmap_validate (wrk->wr_bitmap, minbits);
1824 clib_memcpy (wrk->wr_bitmap, write_map,
1825 vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
1826 memset (write_map, 0,
1827 vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
1829 if (n_bits && except_map)
1831 clib_bitmap_validate (wrk->ex_bitmap, minbits);
1832 clib_memcpy (wrk->ex_bitmap, except_map,
1833 vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
1834 memset (except_map, 0,
1835 vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
1845 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
1846 if (!(session = vcl_session_get (wrk, sid)))
1848 VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
1850 return VPPCOM_EBADFD;
1853 rv = svm_fifo_is_full (session->tx_fifo);
1856 clib_bitmap_set_no_check (write_map, sid, 1);
1865 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
1866 if (!(session = vcl_session_get (wrk, sid)))
1868 VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
1870 return VPPCOM_EBADFD;
1873 rv = vppcom_session_read_ready (session);
1876 clib_bitmap_set_no_check (read_map, sid, 1);
1884 if (vcm->cfg.use_mq_eventfd)
1885 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
1886 time_to_wait, &bits_set);
1888 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
1889 time_to_wait, &bits_set);
1895 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
1897 vcl_session_t *session;
1898 vppcom_epoll_t *vep;
1901 if (VPPCOM_DEBUG <= 1)
1904 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1905 session = vcl_session_get (wrk, vep_idx);
1906 if (PREDICT_FALSE (!session))
1908 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
1909 getpid (), vep_idx);
1912 if (PREDICT_FALSE (!session->is_vep))
1914 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
1915 getpid (), vep_idx);
1918 vep = &session->vep;
1919 clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n"
1922 " is_vep_session = %u\n"
1923 " next_sid = 0x%x (%u)\n"
1924 " wait_cont_idx = 0x%x (%u)\n"
1925 "}\n", getpid (), vep_idx,
1926 session->is_vep, session->is_vep_session,
1927 vep->next_sh, vep->next_sh,
1928 session->wait_cont_idx, session->wait_cont_idx);
1930 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
1932 session = vcl_session_get (wrk, sid);
1933 if (PREDICT_FALSE (!session))
1935 clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
1938 if (PREDICT_FALSE (session->is_vep))
1939 clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!",
1940 getpid (), vep_idx);
1941 else if (PREDICT_FALSE (!session->is_vep_session))
1943 clib_warning ("VCL<%d>: ERROR: session (%u) "
1944 "is not a vep session!", getpid (), sid);
1947 vep = &session->vep;
1948 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
1949 clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
1950 "vep_idx (%u)!", getpid (),
1951 sid, session->vep.vep_sh, vep_idx);
1952 if (session->is_vep_session)
1954 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
1956 " next_sid = 0x%x (%u)\n"
1957 " prev_sid = 0x%x (%u)\n"
1958 " vep_idx = 0x%x (%u)\n"
1959 " ev.events = 0x%x\n"
1960 " ev.data.u64 = 0x%llx\n"
1964 vep->next_sh, vep->next_sh,
1965 vep->prev_sh, vep->prev_sh,
1966 vep->vep_sh, vep->vep_sh,
1967 vep->ev.events, vep->ev.data.u64, vep->et_mask);
1972 clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n",
1973 getpid (), vep_idx);
1977 vppcom_epoll_create (void)
1979 vcl_worker_t *wrk = vcl_worker_get_current ();
1980 vcl_session_t *vep_session;
1982 vep_session = vcl_session_alloc (wrk);
1984 vep_session->is_vep = 1;
1985 vep_session->vep.vep_sh = ~0;
1986 vep_session->vep.next_sh = ~0;
1987 vep_session->vep.prev_sh = ~0;
1988 vep_session->wait_cont_idx = ~0;
1989 vep_session->vpp_handle = ~0;
1991 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_sh);
1992 VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!",
1993 getpid (), vep_session->session_index, vep_session->session_index);
1995 return vcl_session_handle (vep_session);
1999 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2000 struct epoll_event *event)
2002 vcl_worker_t *wrk = vcl_worker_get_current ();
2003 vcl_session_t *vep_session;
2004 vcl_session_t *session;
2007 if (vep_handle == session_handle)
2009 clib_warning ("VCL<%d>: ERROR: vep_idx == session_index (%u)!",
2010 getpid (), vep_handle);
2011 return VPPCOM_EINVAL;
2014 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2015 if (PREDICT_FALSE (!vep_session))
2017 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_handle);
2018 return VPPCOM_EBADFD;
2020 if (PREDICT_FALSE (!vep_session->is_vep))
2022 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2023 getpid (), vep_handle);
2024 return VPPCOM_EINVAL;
2027 ASSERT (vep_session->vep.vep_sh == ~0);
2028 ASSERT (vep_session->vep.prev_sh == ~0);
2030 session = vcl_session_get_w_handle (wrk, session_handle);
2031 if (PREDICT_FALSE (!session))
2033 VDBG (0, "VCL<%d>: ERROR: Invalid session_handle (%u)!",
2034 getpid (), session_handle);
2035 return VPPCOM_EBADFD;
2037 if (PREDICT_FALSE (session->is_vep))
2039 clib_warning ("ERROR: session_handle (%u) is a vep!", vep_handle);
2040 return VPPCOM_EINVAL;
2046 if (PREDICT_FALSE (!event))
2048 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: NULL pointer to "
2049 "epoll_event structure!", getpid ());
2050 return VPPCOM_EINVAL;
2052 if (vep_session->vep.next_sh != ~0)
2054 vcl_session_t *next_session;
2055 next_session = vcl_session_get_w_handle (wrk,
2056 vep_session->vep.next_sh);
2057 if (PREDICT_FALSE (!next_session))
2059 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid "
2060 "vep.next_sid (%u) on vep_idx (%u)!",
2061 getpid (), vep_session->vep.next_sh, vep_handle);
2062 return VPPCOM_EBADFD;
2064 ASSERT (next_session->vep.prev_sh == vep_handle);
2065 next_session->vep.prev_sh = session_handle;
2067 session->vep.next_sh = vep_session->vep.next_sh;
2068 session->vep.prev_sh = vep_handle;
2069 session->vep.vep_sh = vep_handle;
2070 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2071 session->vep.ev = *event;
2072 session->is_vep = 0;
2073 session->is_vep_session = 1;
2074 vep_session->vep.next_sh = session_handle;
2076 VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x, "
2077 "data 0x%llx!", getpid (), vep_handle, session_handle,
2078 event->events, event->data.u64);
2079 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2083 if (PREDICT_FALSE (!event))
2085 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_MOD: NULL pointer to "
2086 "epoll_event structure!", getpid ());
2090 else if (PREDICT_FALSE (!session->is_vep_session))
2092 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2093 "not a vep session!", getpid (), session_handle);
2097 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2099 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2100 "vep_idx (%u) != vep_idx (%u)!",
2101 getpid (), session_handle,
2102 session->vep.vep_sh, vep_handle);
2106 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2107 session->vep.ev = *event;
2108 VDBG (1, "VCL<%d>: EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
2109 " data 0x%llx!", getpid (), vep_handle, session_handle,
2110 event->events, event->data.u64);
2114 if (PREDICT_FALSE (!session->is_vep_session))
2116 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2117 "not a vep session!", getpid (), session_handle);
2121 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2123 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2124 "vep_idx (%u) != vep_idx (%u)!",
2125 getpid (), session_handle,
2126 session->vep.vep_sh, vep_handle);
2131 vep_session->wait_cont_idx =
2132 (vep_session->wait_cont_idx == session_handle) ?
2133 session->vep.next_sh : vep_session->wait_cont_idx;
2135 if (session->vep.prev_sh == vep_handle)
2136 vep_session->vep.next_sh = session->vep.next_sh;
2139 vcl_session_t *prev_session;
2140 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2141 if (PREDICT_FALSE (!prev_session))
2143 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2144 "vep.prev_sid (%u) on sid (%u)!",
2145 getpid (), session->vep.prev_sh, session_handle);
2146 return VPPCOM_EBADFD;
2148 ASSERT (prev_session->vep.next_sh == session_handle);
2149 prev_session->vep.next_sh = session->vep.next_sh;
2151 if (session->vep.next_sh != ~0)
2153 vcl_session_t *next_session;
2154 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2155 if (PREDICT_FALSE (!next_session))
2157 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2158 "vep.next_sid (%u) on sid (%u)!",
2159 getpid (), session->vep.next_sh, session_handle);
2160 return VPPCOM_EBADFD;
2162 ASSERT (next_session->vep.prev_sh == session_handle);
2163 next_session->vep.prev_sh = session->vep.prev_sh;
2166 memset (&session->vep, 0, sizeof (session->vep));
2167 session->vep.next_sh = ~0;
2168 session->vep.prev_sh = ~0;
2169 session->vep.vep_sh = ~0;
2170 session->is_vep_session = 0;
2171 VDBG (1, "VCL<%d>: EPOLL_CTL_DEL: vep_idx %u, sid %u!",
2172 getpid (), vep_handle, session_handle);
2173 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2177 clib_warning ("VCL<%d>: ERROR: Invalid operation (%d)!", getpid (), op);
2181 vep_verify_epoll_chain (wrk, vep_handle);
2188 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2189 struct epoll_event *events, u32 maxevents,
2190 double wait_for_time, u32 * num_ev)
2192 session_disconnected_msg_t *disconnected_msg;
2193 session_connected_msg_t *connected_msg;
2194 session_accepted_msg_t *accepted_msg;
2195 u64 session_evt_data = ~0, handle;
2196 u32 sid = ~0, session_events;
2197 vcl_session_msg_t *vcl_msg;
2198 vcl_session_t *session;
2199 svm_msg_q_msg_t *msg;
2204 svm_msg_q_lock (mq);
2205 if (svm_msg_q_is_empty (mq))
2209 svm_msg_q_unlock (mq);
2212 else if (wait_for_time < 0)
2214 svm_msg_q_wait (mq);
2218 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2220 svm_msg_q_unlock (mq);
2225 vcl_mq_dequeue_batch (wrk, mq);
2226 svm_msg_q_unlock (mq);
2228 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2230 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2231 e = svm_msg_q_msg_data (mq, msg);
2233 switch (e->event_type)
2235 case FIFO_EVENT_APP_RX:
2236 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2237 sid = e->fifo->client_session_index;
2238 session = vcl_session_get (wrk, sid);
2239 session_events = session->vep.ev.events;
2240 if (!(EPOLLIN & session->vep.ev.events))
2243 events[*num_ev].events |= EPOLLIN;
2244 session_evt_data = session->vep.ev.data.u64;
2246 case FIFO_EVENT_APP_TX:
2247 sid = e->fifo->client_session_index;
2248 session = vcl_session_get (wrk, sid);
2249 session_events = session->vep.ev.events;
2250 if (!(EPOLLOUT & session_events))
2253 events[*num_ev].events |= EPOLLOUT;
2254 session_evt_data = session->vep.ev.data.u64;
2256 case SESSION_IO_EVT_CT_TX:
2257 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2258 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
2259 sid = session->session_index;
2260 session_events = session->vep.ev.events;
2261 if (!(EPOLLIN & session->vep.ev.events))
2264 events[*num_ev].events |= EPOLLIN;
2265 session_evt_data = session->vep.ev.data.u64;
2267 case SESSION_IO_EVT_CT_RX:
2268 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
2269 sid = session->session_index;
2270 session_events = session->vep.ev.events;
2271 if (!(EPOLLOUT & session_events))
2274 events[*num_ev].events |= EPOLLOUT;
2275 session_evt_data = session->vep.ev.data.u64;
2277 case SESSION_CTRL_EVT_ACCEPTED:
2278 accepted_msg = (session_accepted_msg_t *) e->data;
2279 handle = accepted_msg->listener_handle;
2280 session = vcl_session_table_lookup_listener (wrk, handle);
2283 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
2284 "listener handle %llx", getpid (), handle);
2288 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
2289 vcl_msg->accepted_msg = *accepted_msg;
2290 session_events = session->vep.ev.events;
2291 if (!(EPOLLIN & session_events))
2295 events[*num_ev].events |= EPOLLIN;
2296 session_evt_data = session->vep.ev.data.u64;
2298 case SESSION_CTRL_EVT_CONNECTED:
2299 connected_msg = (session_connected_msg_t *) e->data;
2300 vcl_session_connected_handler (wrk, connected_msg);
2301 /* Generate EPOLLOUT because there's no connected event */
2302 sid = vcl_session_index_from_vpp_handle (wrk,
2303 connected_msg->handle);
2304 session = vcl_session_get (wrk, sid);
2305 session_events = session->vep.ev.events;
2306 if (EPOLLOUT & session_events)
2309 events[*num_ev].events |= EPOLLOUT;
2310 session_evt_data = session->vep.ev.data.u64;
2313 case SESSION_CTRL_EVT_DISCONNECTED:
2314 disconnected_msg = (session_disconnected_msg_t *) e->data;
2315 sid = vcl_session_index_from_vpp_handle (wrk,
2316 disconnected_msg->handle);
2317 if (!(session = vcl_session_get (wrk, sid)))
2320 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2321 session_evt_data = session->vep.ev.data.u64;
2322 session_events = session->vep.ev.events;
2324 case SESSION_CTRL_EVT_RESET:
2325 sid = vcl_session_reset_handler (wrk,
2326 (session_reset_msg_t *) e->data);
2327 if (!(session = vcl_session_get (wrk, sid)))
2330 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2331 session_evt_data = session->vep.ev.data.u64;
2332 session_events = session->vep.ev.events;
2335 VDBG (0, "unhandled: %u", e->event_type);
2336 svm_msg_q_free_msg (mq, msg);
2339 svm_msg_q_free_msg (mq, msg);
2343 events[*num_ev].data.u64 = session_evt_data;
2344 if (EPOLLONESHOT & session_events)
2346 session = vcl_session_get (wrk, sid);
2347 session->vep.ev.events = 0;
2350 if (*num_ev == maxevents)
2355 vec_reset_length (wrk->mq_msg_vector);
2360 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2361 int maxevents, double wait_for_time)
2363 vcl_cut_through_registration_t *cr;
2364 double total_wait = 0, wait_slice;
2368 wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time;
2369 wait_slice = wrk->cut_through_registrations ? 10e-6 : wait_for_time;
2373 vcl_ct_registration_lock (wrk);
2375 pool_foreach (cr, wrk->cut_through_registrations, ({
2376 vcl_epoll_wait_handle_mq (wrk, cr->mq, events, maxevents, 0, &num_ev);
2379 vcl_ct_registration_unlock (wrk);
2381 rv = vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events,
2382 maxevents, num_ev ? 0 : wait_slice,
2385 total_wait += wait_slice;
2389 while (total_wait < wait_for_time);
2390 return (int) num_ev;
2394 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2395 int maxevents, double wait_for_time)
2397 vcl_mq_evt_conn_t *mqc;
2398 int __clib_unused n_read;
2403 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2404 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2405 vec_len (wrk->mq_events), wait_for_time);
2406 for (i = 0; i < n_mq_evts; i++)
2408 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2409 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2410 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2413 return (int) n_evts;
2417 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2418 int maxevents, double wait_for_time)
2420 vcl_worker_t *wrk = vcl_worker_get_current ();
2421 vcl_session_t *vep_session;
2423 if (PREDICT_FALSE (maxevents <= 0))
2425 clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
2426 getpid (), maxevents);
2427 return VPPCOM_EINVAL;
2430 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2432 return VPPCOM_EBADFD;
2434 if (PREDICT_FALSE (!vep_session->is_vep))
2436 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2437 getpid (), vep_handle);
2438 return VPPCOM_EINVAL;
2441 memset (events, 0, sizeof (*events) * maxevents);
2443 if (vcm->cfg.use_mq_eventfd)
2444 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, wait_for_time);
2446 return vppcom_epoll_wait_condvar (wrk, events, maxevents, wait_for_time);
2450 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2451 void *buffer, uint32_t * buflen)
2453 vcl_worker_t *wrk = vcl_worker_get_current ();
2454 vcl_session_t *session;
2456 u32 *flags = buffer;
2457 vppcom_endpt_t *ep = buffer;
2459 session = vcl_session_get_w_handle (wrk, session_handle);
2461 return VPPCOM_EBADFD;
2465 case VPPCOM_ATTR_GET_NREAD:
2466 rv = vppcom_session_read_ready (session);
2467 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d",
2471 case VPPCOM_ATTR_GET_NWRITE:
2472 rv = vppcom_session_write_ready (session);
2473 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
2474 getpid (), session_handle, rv);
2477 case VPPCOM_ATTR_GET_FLAGS:
2478 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2480 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2481 VCL_SESS_ATTR_NONBLOCK));
2482 *buflen = sizeof (*flags);
2483 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
2484 "is_nonblocking = %u", getpid (),
2485 session_handle, *flags,
2486 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2492 case VPPCOM_ATTR_SET_FLAGS:
2493 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2495 if (*flags & O_NONBLOCK)
2496 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2498 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2500 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
2501 " is_nonblocking = %u",
2502 getpid (), session_handle, *flags,
2503 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2509 case VPPCOM_ATTR_GET_PEER_ADDR:
2510 if (PREDICT_TRUE (buffer && buflen &&
2511 (*buflen >= sizeof (*ep)) && ep->ip))
2513 ep->is_ip4 = session->transport.is_ip4;
2514 ep->port = session->transport.rmt_port;
2515 if (session->transport.is_ip4)
2516 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
2517 sizeof (ip4_address_t));
2519 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
2520 sizeof (ip6_address_t));
2521 *buflen = sizeof (*ep);
2522 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
2523 "addr = %U, port %u", getpid (),
2524 session_handle, ep->is_ip4, format_ip46_address,
2525 &session->transport.rmt_ip,
2526 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2527 clib_net_to_host_u16 (ep->port));
2533 case VPPCOM_ATTR_GET_LCL_ADDR:
2534 if (PREDICT_TRUE (buffer && buflen &&
2535 (*buflen >= sizeof (*ep)) && ep->ip))
2537 ep->is_ip4 = session->transport.is_ip4;
2538 ep->port = session->transport.lcl_port;
2539 if (session->transport.is_ip4)
2540 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip4,
2541 sizeof (ip4_address_t));
2543 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip6,
2544 sizeof (ip6_address_t));
2545 *buflen = sizeof (*ep);
2546 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
2547 " addr = %U port %d", getpid (),
2548 session_handle, ep->is_ip4, format_ip46_address,
2549 &session->transport.lcl_ip,
2550 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2551 clib_net_to_host_u16 (ep->port));
2557 case VPPCOM_ATTR_GET_LIBC_EPFD:
2558 rv = session->libc_epfd;
2559 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
2563 case VPPCOM_ATTR_SET_LIBC_EPFD:
2564 if (PREDICT_TRUE (buffer && buflen &&
2565 (*buflen == sizeof (session->libc_epfd))))
2567 session->libc_epfd = *(int *) buffer;
2568 *buflen = sizeof (session->libc_epfd);
2570 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, "
2571 "buflen %d", getpid (), session->libc_epfd, *buflen);
2577 case VPPCOM_ATTR_GET_PROTOCOL:
2578 if (buffer && buflen && (*buflen >= sizeof (int)))
2580 *(int *) buffer = session->session_type;
2581 *buflen = sizeof (int);
2583 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2584 getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP",
2591 case VPPCOM_ATTR_GET_LISTEN:
2592 if (buffer && buflen && (*buflen >= sizeof (int)))
2594 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2595 VCL_SESS_ATTR_LISTEN);
2596 *buflen = sizeof (int);
2598 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d",
2599 getpid (), *(int *) buffer, *buflen);
2605 case VPPCOM_ATTR_GET_ERROR:
2606 if (buffer && buflen && (*buflen >= sizeof (int)))
2608 *(int *) buffer = 0;
2609 *buflen = sizeof (int);
2611 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2612 getpid (), *(int *) buffer, *buflen);
2618 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2619 if (buffer && buflen && (*buflen >= sizeof (u32)))
2623 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2624 session->tx_fifo ? session->tx_fifo->nitems :
2625 vcm->cfg.tx_fifo_size);
2626 *buflen = sizeof (u32);
2628 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
2629 "buflen %d, #VPP-TBD#", getpid (),
2630 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2636 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2637 if (buffer && buflen && (*buflen == sizeof (u32)))
2640 session->sndbuf_size = *(u32 *) buffer;
2641 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), "
2642 "buflen %d, #VPP-TBD#", getpid (),
2643 session->sndbuf_size, session->sndbuf_size, *buflen);
2649 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2650 if (buffer && buflen && (*buflen >= sizeof (u32)))
2654 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2655 session->rx_fifo ? session->rx_fifo->nitems :
2656 vcm->cfg.rx_fifo_size);
2657 *buflen = sizeof (u32);
2659 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
2660 "buflen %d, #VPP-TBD#", getpid (),
2661 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2667 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2668 if (buffer && buflen && (*buflen == sizeof (u32)))
2671 session->rcvbuf_size = *(u32 *) buffer;
2672 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), "
2673 "buflen %d, #VPP-TBD#", getpid (),
2674 session->sndbuf_size, session->sndbuf_size, *buflen);
2680 case VPPCOM_ATTR_GET_REUSEADDR:
2681 if (buffer && buflen && (*buflen >= sizeof (int)))
2684 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2685 VCL_SESS_ATTR_REUSEADDR);
2686 *buflen = sizeof (int);
2688 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
2689 "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2695 case VPPCOM_ATTR_SET_REUSEADDR:
2696 if (buffer && buflen && (*buflen == sizeof (int)) &&
2697 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2700 if (*(int *) buffer)
2701 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2703 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2705 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d,"
2706 " #VPP-TBD#", getpid (),
2707 VCL_SESS_ATTR_TEST (session->attr,
2708 VCL_SESS_ATTR_REUSEADDR), *buflen);
2714 case VPPCOM_ATTR_GET_REUSEPORT:
2715 if (buffer && buflen && (*buflen >= sizeof (int)))
2718 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2719 VCL_SESS_ATTR_REUSEPORT);
2720 *buflen = sizeof (int);
2722 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d,"
2723 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2729 case VPPCOM_ATTR_SET_REUSEPORT:
2730 if (buffer && buflen && (*buflen == sizeof (int)) &&
2731 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2734 if (*(int *) buffer)
2735 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2737 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2739 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d,"
2740 " #VPP-TBD#", getpid (),
2741 VCL_SESS_ATTR_TEST (session->attr,
2742 VCL_SESS_ATTR_REUSEPORT), *buflen);
2748 case VPPCOM_ATTR_GET_BROADCAST:
2749 if (buffer && buflen && (*buflen >= sizeof (int)))
2752 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2753 VCL_SESS_ATTR_BROADCAST);
2754 *buflen = sizeof (int);
2756 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d,"
2757 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2763 case VPPCOM_ATTR_SET_BROADCAST:
2764 if (buffer && buflen && (*buflen == sizeof (int)))
2767 if (*(int *) buffer)
2768 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2770 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2772 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, "
2773 "#VPP-TBD#", getpid (),
2774 VCL_SESS_ATTR_TEST (session->attr,
2775 VCL_SESS_ATTR_BROADCAST), *buflen);
2781 case VPPCOM_ATTR_GET_V6ONLY:
2782 if (buffer && buflen && (*buflen >= sizeof (int)))
2785 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2786 VCL_SESS_ATTR_V6ONLY);
2787 *buflen = sizeof (int);
2789 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, "
2790 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2796 case VPPCOM_ATTR_SET_V6ONLY:
2797 if (buffer && buflen && (*buflen == sizeof (int)))
2800 if (*(int *) buffer)
2801 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2803 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2805 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, "
2806 "#VPP-TBD#", getpid (),
2807 VCL_SESS_ATTR_TEST (session->attr,
2808 VCL_SESS_ATTR_V6ONLY), *buflen);
2814 case VPPCOM_ATTR_GET_KEEPALIVE:
2815 if (buffer && buflen && (*buflen >= sizeof (int)))
2818 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2819 VCL_SESS_ATTR_KEEPALIVE);
2820 *buflen = sizeof (int);
2822 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, "
2823 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2829 case VPPCOM_ATTR_SET_KEEPALIVE:
2830 if (buffer && buflen && (*buflen == sizeof (int)))
2833 if (*(int *) buffer)
2834 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2836 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2838 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, "
2839 "#VPP-TBD#", getpid (),
2840 VCL_SESS_ATTR_TEST (session->attr,
2841 VCL_SESS_ATTR_KEEPALIVE), *buflen);
2847 case VPPCOM_ATTR_GET_TCP_NODELAY:
2848 if (buffer && buflen && (*buflen >= sizeof (int)))
2851 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2852 VCL_SESS_ATTR_TCP_NODELAY);
2853 *buflen = sizeof (int);
2855 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, "
2856 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2862 case VPPCOM_ATTR_SET_TCP_NODELAY:
2863 if (buffer && buflen && (*buflen == sizeof (int)))
2866 if (*(int *) buffer)
2867 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
2869 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
2871 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, "
2872 "#VPP-TBD#", getpid (),
2873 VCL_SESS_ATTR_TEST (session->attr,
2874 VCL_SESS_ATTR_TCP_NODELAY), *buflen);
2880 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
2881 if (buffer && buflen && (*buflen >= sizeof (int)))
2884 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2885 VCL_SESS_ATTR_TCP_KEEPIDLE);
2886 *buflen = sizeof (int);
2888 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, "
2889 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2895 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
2896 if (buffer && buflen && (*buflen == sizeof (int)))
2899 if (*(int *) buffer)
2900 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
2902 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
2904 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, "
2905 "#VPP-TBD#", getpid (),
2906 VCL_SESS_ATTR_TEST (session->attr,
2907 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
2913 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
2914 if (buffer && buflen && (*buflen >= sizeof (int)))
2917 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2918 VCL_SESS_ATTR_TCP_KEEPINTVL);
2919 *buflen = sizeof (int);
2921 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, "
2922 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2928 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
2929 if (buffer && buflen && (*buflen == sizeof (int)))
2932 if (*(int *) buffer)
2933 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
2935 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
2937 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, "
2938 "#VPP-TBD#", getpid (),
2939 VCL_SESS_ATTR_TEST (session->attr,
2940 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
2946 case VPPCOM_ATTR_GET_TCP_USER_MSS:
2947 if (buffer && buflen && (*buflen >= sizeof (u32)))
2950 *(u32 *) buffer = session->user_mss;
2951 *buflen = sizeof (int);
2953 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d,"
2954 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2960 case VPPCOM_ATTR_SET_TCP_USER_MSS:
2961 if (buffer && buflen && (*buflen == sizeof (u32)))
2964 session->user_mss = *(u32 *) buffer;
2966 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, "
2967 "#VPP-TBD#", getpid (), session->user_mss, *buflen);
2982 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
2983 uint32_t buflen, int flags, vppcom_endpt_t * ep)
2985 vcl_worker_t *wrk = vcl_worker_get_current ();
2987 vcl_session_t *session = 0;
2991 session = vcl_session_get_w_handle (wrk, session_handle);
2992 if (PREDICT_FALSE (!session))
2994 VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
2995 getpid (), session_handle);
2996 return VPPCOM_EBADFD;
2998 ep->is_ip4 = session->transport.is_ip4;
2999 ep->port = session->transport.rmt_port;
3003 rv = vppcom_session_read (session_handle, buffer, buflen);
3004 else if (flags & MSG_PEEK)
3005 rv = vppcom_session_peek (session_handle, buffer, buflen);
3008 clib_warning ("VCL<%d>: Unsupport flags for recvfrom %d",
3010 return VPPCOM_EAFNOSUPPORT;
3015 if (session->transport.is_ip4)
3016 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
3017 sizeof (ip4_address_t));
3019 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
3020 sizeof (ip6_address_t));
3027 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3028 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3031 return VPPCOM_EINVAL;
3036 return VPPCOM_EINVAL;
3041 // TBD check the flags and do the right thing
3042 VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.",
3043 getpid (), flags, flags);
3046 return (vppcom_session_write (session_handle, buffer, buflen));
3050 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3052 vcl_worker_t *wrk = vcl_worker_get_current ();
3053 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3054 u32 i, keep_trying = 1;
3057 VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
3058 getpid (), vp, n_sids, wait_for_time);
3061 return VPPCOM_EFAULT;
3065 vcl_session_t *session;
3067 for (i = 0; i < n_sids; i++)
3069 ASSERT (vp[i].revents);
3071 session = vcl_session_get (wrk, vp[i].sid);
3078 if (POLLIN & vp[i].events)
3080 rv = vppcom_session_read_ready (session);
3083 *vp[i].revents |= POLLIN;
3090 case VPPCOM_ECONNRESET:
3091 *vp[i].revents = POLLHUP;
3095 *vp[i].revents = POLLERR;
3102 if (POLLOUT & vp[i].events)
3104 rv = vppcom_session_write_ready (session);
3107 *vp[i].revents |= POLLOUT;
3114 case VPPCOM_ECONNRESET:
3115 *vp[i].revents = POLLHUP;
3119 *vp[i].revents = POLLERR;
3126 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3128 *vp[i].revents = POLLNVAL;
3132 if (wait_for_time != -1)
3133 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3135 while ((num_ev == 0) && keep_trying);
3137 if (VPPCOM_DEBUG > 3)
3139 clib_warning ("VCL<%d>: returning %d", getpid (), num_ev);
3140 for (i = 0; i < n_sids; i++)
3142 clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
3143 ".revents 0x%x", getpid (), i, vp[i].sid, vp[i].sid,
3144 vp[i].events, *vp[i].revents);
3151 vppcom_mq_epoll_fd (void)
3153 vcl_worker_t *wrk = vcl_worker_get_current ();
3154 return wrk->mqs_epfd;
3158 vppcom_session_index (uint32_t session_handle)
3160 return session_handle & 0xFFFFFF;
3164 vppcom_worker_register (void)
3166 if (vcl_worker_alloc_and_init ())
3168 return VPPCOM_EEXIST;
3172 * fd.io coding-style-patch-verification: ON
3175 * eval: (c-set-style "gnu")