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>
27 sigsegv_signal (int signum)
33 vcl_wait_for_memory (void *mem)
35 u8 __clib_unused test;
36 if (vcm->mounting_segment)
38 while (vcm->mounting_segment)
47 if (signal (SIGSEGV, sigsegv_signal))
63 signal (SIGSEGV, SIG_DFL);
67 vppcom_app_state_str (app_state_t state)
74 st = "STATE_APP_START";
77 case STATE_APP_CONN_VPP:
78 st = "STATE_APP_CONN_VPP";
81 case STATE_APP_ENABLED:
82 st = "STATE_APP_ENABLED";
85 case STATE_APP_ATTACHED:
86 st = "STATE_APP_ATTACHED";
90 st = "UNKNOWN_APP_STATE";
98 vppcom_session_state_str (session_state_t state)
109 st = "STATE_CONNECT";
120 case STATE_CLOSE_ON_EMPTY:
121 st = "STATE_CLOSE_ON_EMPTY";
124 case STATE_DISCONNECT:
125 st = "STATE_DISCONNECT";
133 st = "UNKNOWN_STATE";
141 format_ip4_address (u8 * s, va_list * args)
143 u8 *a = va_arg (*args, u8 *);
144 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
148 format_ip6_address (u8 * s, va_list * args)
150 ip6_address_t *a = va_arg (*args, ip6_address_t *);
151 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
153 i_max_n_zero = ARRAY_LEN (a->as_u16);
155 i_first_zero = i_max_n_zero;
157 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
159 u32 is_zero = a->as_u16[i] == 0;
160 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
166 if ((!is_zero && n_zeros > max_n_zeros)
167 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
169 i_max_n_zero = i_first_zero;
170 max_n_zeros = n_zeros;
171 i_first_zero = ARRAY_LEN (a->as_u16);
176 last_double_colon = 0;
177 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
179 if (i == i_max_n_zero && max_n_zeros > 1)
181 s = format (s, "::");
182 i += max_n_zeros - 1;
183 last_double_colon = 1;
187 s = format (s, "%s%x",
188 (last_double_colon || i == 0) ? "" : ":",
189 clib_net_to_host_u16 (a->as_u16[i]));
190 last_double_colon = 0;
197 /* Format an IP46 address. */
199 format_ip46_address (u8 * s, va_list * args)
201 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
202 ip46_type_t type = va_arg (*args, ip46_type_t);
208 is_ip4 = ip46_address_is_ip4 (ip46);
219 format (s, "%U", format_ip4_address, &ip46->ip4) :
220 format (s, "%U", format_ip6_address, &ip46->ip6);
224 * VPPCOM Utility Functions
228 vppcom_session_table_del_listener (u64 listener_handle)
230 listener_handle |= 1ULL << 63;
231 hash_unset (vcm->session_index_by_vpp_handles, listener_handle);
235 vppcom_wait_for_app_state_change (app_state_t app_state)
237 f64 timeout = clib_time_now (&vcm->clib_time) + vcm->cfg.app_timeout;
239 while (clib_time_now (&vcm->clib_time) < timeout)
241 if (vcm->app_state == app_state)
244 VDBG (0, "VCL<%d>: timeout waiting for state %s (%d)", getpid (),
245 vppcom_app_state_str (app_state), app_state);
246 vcl_evt (VCL_EVT_SESSION_TIMEOUT, vcm, app_state);
248 return VPPCOM_ETIMEDOUT;
252 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
253 session_handle_t handle, int retval)
255 app_session_evt_t _app_evt, *app_evt = &_app_evt;
256 session_accepted_reply_msg_t *rmp;
257 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
258 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
259 rmp->handle = handle;
260 rmp->context = context;
261 rmp->retval = retval;
262 app_send_ctrl_evt_to_vpp (mq, app_evt);
266 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
267 session_handle_t handle, int retval)
269 app_session_evt_t _app_evt, *app_evt = &_app_evt;
270 session_disconnected_reply_msg_t *rmp;
271 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
272 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
273 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
274 rmp->handle = handle;
275 rmp->context = context;
276 rmp->retval = retval;
277 app_send_ctrl_evt_to_vpp (mq, app_evt);
281 vcl_session_accepted_handler (session_accepted_msg_t * mp)
283 vcl_session_t *session, *listen_session;
284 svm_fifo_t *rx_fifo, *tx_fifo;
285 u32 session_index, vpp_wrk_index;
290 session = vcl_session_alloc ();
291 session_index = vcl_session_index (session);
293 listen_session = vppcom_session_table_lookup_listener (mp->listener_handle);
297 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
298 clib_warning ("VCL<%d>: ERROR: couldn't find listen session: "
299 "unknown vpp listener handle %llx",
300 getpid (), mp->listener_handle);
301 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
302 VNET_API_ERROR_INVALID_ARGUMENT);
303 vcl_session_free (session);
304 VCL_SESSION_UNLOCK ();
305 return VCL_INVALID_SESSION_INDEX;
308 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
309 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
311 if (mp->server_event_queue_address)
313 session->vpp_evt_q = uword_to_pointer (mp->client_event_queue_address,
315 session->our_evt_q = uword_to_pointer (mp->server_event_queue_address,
317 vcl_wait_for_memory (session->vpp_evt_q);
318 rx_fifo->master_session_index = session_index;
319 tx_fifo->master_session_index = session_index;
320 vec_validate (vcm->vpp_event_queues, 0);
321 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
322 vcm->vpp_event_queues[0] = evt_q;
326 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
328 rx_fifo->client_session_index = session_index;
329 tx_fifo->client_session_index = session_index;
331 vpp_wrk_index = tx_fifo->master_thread_index;
332 vec_validate (vcm->vpp_event_queues, vpp_wrk_index);
333 vcm->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
336 session->vpp_handle = mp->handle;
337 session->client_context = mp->context;
338 session->rx_fifo = rx_fifo;
339 session->tx_fifo = tx_fifo;
341 session->session_state = STATE_ACCEPT;
342 session->transport.rmt_port = mp->port;
343 session->transport.is_ip4 = mp->is_ip4;
344 clib_memcpy (&session->transport.rmt_ip, mp->ip, sizeof (ip46_address_t));
346 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
347 session->transport.lcl_port = listen_session->transport.lcl_port;
348 session->transport.lcl_ip = listen_session->transport.lcl_ip;
349 session->session_type = listen_session->session_type;
350 session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
352 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s"
353 " address %U port %d queue %p!", getpid (), mp->handle, session_index,
354 mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip,
355 mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
356 clib_net_to_host_u16 (mp->port), session->vpp_evt_q);
357 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
359 VCL_SESSION_UNLOCK ();
360 return session_index;
364 vcl_session_connected_handler (session_connected_msg_t * mp)
366 u32 session_index, vpp_wrk_index;
367 svm_fifo_t *rx_fifo, *tx_fifo;
368 vcl_session_t *session = 0;
372 session_index = mp->context;
373 VCL_SESSION_LOCK_AND_GET (session_index, &session);
377 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
378 "connect failed! %U",
379 getpid (), mp->handle, session_index,
380 format_api_error, ntohl (mp->retval));
383 session->session_state = STATE_FAILED;
384 session->vpp_handle = mp->handle;
388 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
389 "Invalid session index (%u)!",
390 getpid (), mp->handle, session_index);
398 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
399 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
400 vcl_wait_for_memory (rx_fifo);
401 rx_fifo->client_session_index = session_index;
402 tx_fifo->client_session_index = session_index;
404 if (mp->client_event_queue_address)
406 session->vpp_evt_q = uword_to_pointer (mp->server_event_queue_address,
408 session->our_evt_q = uword_to_pointer (mp->client_event_queue_address,
411 vec_validate (vcm->vpp_event_queues, 0);
412 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
413 vcm->vpp_event_queues[0] = evt_q;
417 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
419 vpp_wrk_index = tx_fifo->master_thread_index;
420 vec_validate (vcm->vpp_event_queues, vpp_wrk_index);
421 vcm->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
424 session->rx_fifo = rx_fifo;
425 session->tx_fifo = tx_fifo;
426 session->vpp_handle = mp->handle;
427 session->transport.is_ip4 = mp->is_ip4;
428 clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip,
429 sizeof (session->transport.lcl_ip));
430 session->transport.lcl_port = mp->lcl_port;
431 session->session_state = STATE_CONNECT;
433 /* Add it to lookup table */
434 hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index);
436 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! "
437 "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d",
438 getpid (), mp->handle, session_index, session->rx_fifo,
439 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
441 VCL_SESSION_UNLOCK ();
442 return session_index;
446 vcl_handle_mq_ctrl_event (session_event_t * e)
448 session_accepted_msg_t *accepted_msg;
449 session_disconnected_msg_t *disconnected_msg;
450 vcl_session_msg_t *vcl_msg;
451 vcl_session_t *session;
455 switch (e->event_type)
457 case FIFO_EVENT_APP_RX:
458 clib_warning ("unhandled rx: sid %u (0x%x)",
459 e->fifo->client_session_index,
460 e->fifo->client_session_index);
462 case SESSION_CTRL_EVT_ACCEPTED:
463 accepted_msg = (session_accepted_msg_t *) e->data;
464 handle = accepted_msg->listener_handle;
465 session = vppcom_session_table_lookup_listener (handle);
468 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
469 "listener handle %llx", getpid (), handle);
473 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
474 vcl_msg->accepted_msg = *accepted_msg;
476 case SESSION_CTRL_EVT_CONNECTED:
477 vcl_session_connected_handler ((session_connected_msg_t *) e->data);
479 case SESSION_CTRL_EVT_DISCONNECTED:
480 disconnected_msg = (session_disconnected_msg_t *) e->data;
481 sid = vcl_session_get_index_from_handle (disconnected_msg->handle);
482 session = vcl_session_get (sid);
483 session->session_state = STATE_DISCONNECT;
484 VDBG (0, "disconnected %u", sid);
487 clib_warning ("unhandled %u", e->event_type);
493 vppcom_wait_for_session_state_change (u32 session_index,
494 session_state_t state,
497 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
498 vcl_session_t *volatile session;
506 rv = vppcom_session_at_index (session_index, &session);
507 if (PREDICT_FALSE (rv))
509 VCL_SESSION_UNLOCK ();
512 if (session->session_state & state)
514 VCL_SESSION_UNLOCK ();
517 if (session->session_state & STATE_FAILED)
519 VCL_SESSION_UNLOCK ();
520 return VPPCOM_ECONNREFUSED;
522 VCL_SESSION_UNLOCK ();
524 if (svm_msg_q_sub (vcm->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
526 e = svm_msg_q_msg_data (vcm->app_event_queue, &msg);
527 vcl_handle_mq_ctrl_event (e);
528 svm_msg_q_free_msg (vcm->app_event_queue, &msg);
530 while (clib_time_now (&vcm->clib_time) < timeout);
532 VDBG (0, "VCL<%d>: timeout waiting for state 0x%x (%s)", getpid (), state,
533 vppcom_session_state_str (state));
534 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
536 return VPPCOM_ETIMEDOUT;
540 vppcom_app_session_enable (void)
544 if (vcm->app_state != STATE_APP_ENABLED)
546 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
547 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
548 if (PREDICT_FALSE (rv))
550 VDBG (0, "VCL<%d>: application session enable timed out! "
551 "returning %d (%s)", getpid (), rv, vppcom_retval_str (rv));
559 vppcom_app_attach (void)
563 vppcom_app_send_attach ();
564 rv = vppcom_wait_for_app_state_change (STATE_APP_ATTACHED);
565 if (PREDICT_FALSE (rv))
567 VDBG (0, "VCL<%d>: application attach timed out! returning %d (%s)",
568 getpid (), rv, vppcom_retval_str (rv));
576 vppcom_session_unbind (u32 session_index)
578 vcl_session_t *session = 0;
582 VCL_SESSION_LOCK_AND_GET (session_index, &session);
584 vpp_handle = session->vpp_handle;
585 vppcom_session_table_del_listener (vpp_handle);
586 session->vpp_handle = ~0;
587 session->session_state = STATE_DISCONNECT;
589 VCL_SESSION_UNLOCK ();
591 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending unbind msg! new state"
592 " 0x%x (%s)", getpid (), vpp_handle, session_index, STATE_DISCONNECT,
593 vppcom_session_state_str (STATE_DISCONNECT));
594 vcl_evt (VCL_EVT_UNBIND, session);
595 vppcom_send_unbind_sock (vpp_handle);
602 vcl_session_vpp_evt_q (vcl_session_t * s)
604 if (vcl_session_is_ct (s))
605 return vcm->vpp_event_queues[0];
607 return vcm->vpp_event_queues[s->tx_fifo->master_thread_index];
611 vppcom_session_disconnect (u32 session_index)
613 svm_msg_q_t *vpp_evt_q;
614 vcl_session_t *session;
615 session_state_t state;
619 VCL_SESSION_LOCK_AND_GET (session_index, &session);
621 vpp_handle = session->vpp_handle;
622 state = session->session_state;
623 VCL_SESSION_UNLOCK ();
625 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (),
626 vpp_handle, session_index, state, vppcom_session_state_str (state));
628 if (PREDICT_FALSE (state & STATE_LISTEN))
630 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
631 "Cannot disconnect a listen socket!",
632 getpid (), vpp_handle, session_index);
637 if (state & STATE_CLOSE_ON_EMPTY)
639 vpp_evt_q = vcl_session_vpp_evt_q (session);
640 vcl_send_session_disconnected_reply (vpp_evt_q, vcm->my_client_index,
642 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect "
643 "REPLY...", getpid (), vpp_handle, session_index);
647 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...",
648 getpid (), vpp_handle, session_index);
649 vppcom_send_disconnect_session (vpp_handle, session_index);
657 * VPPCOM Public API functions
660 vppcom_app_create (char *app_name)
662 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
668 vppcom_cfg (&vcm->cfg);
672 if (vcl_cfg->use_mq_eventfd)
673 vcm->mqs_epfd = epoll_create (1);
675 clib_spinlock_init (&vcm->session_fifo_lockp);
676 clib_fifo_validate (vcm->client_session_index_fifo,
677 vcm->cfg.listen_queue_size);
678 clib_spinlock_init (&vcm->sessions_lockp);
681 vcm->main_cpu = os_get_thread_index ();
683 vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword));
684 vcm->ct_registration_by_mq = hash_create (0, sizeof (uword));
685 clib_spinlock_init (&vcm->ct_registration_lock);
687 clib_time_init (&vcm->clib_time);
688 vppcom_init_error_string_table ();
689 svm_fifo_segment_main_init (vcl_cfg->segment_baseva,
690 20 /* timeout in secs */ );
691 vec_validate (vcm->mq_events, 64);
692 vec_validate (vcm->mq_msg_vector, 128);
693 vec_reset_length (vcm->mq_msg_vector);
696 if (vcm->my_client_index == ~0)
698 /* API hookup and connect to VPP */
699 vppcom_api_hookup ();
701 vcm->app_state = STATE_APP_START;
702 rv = vppcom_connect_to_vpp (app_name);
705 clib_warning ("VCL<%d>: ERROR: couldn't connect to VPP!",
710 /* State event handling thread */
712 rv = vce_start_event_thread (&(vcm->event_thread), 20);
714 VDBG (0, "VCL<%d>: sending session enable", getpid ());
716 rv = vppcom_app_session_enable ();
719 clib_warning ("VCL<%d>: ERROR: vppcom_app_session_enable() "
720 "failed!", getpid ());
724 VDBG (0, "VCL<%d>: sending app attach", getpid ());
726 rv = vppcom_app_attach ();
729 clib_warning ("VCL<%d>: ERROR: vppcom_app_attach() failed!",
734 VDBG (0, "VCL<%d>: app_name '%s', my_client_index %d (0x%x)",
735 getpid (), app_name, vcm->my_client_index, vcm->my_client_index);
742 vppcom_app_destroy (void)
745 f64 orig_app_timeout;
747 if (vcm->my_client_index == ~0)
750 VDBG (0, "VCL<%d>: detaching from VPP, my_client_index %d (0x%x)",
751 getpid (), vcm->my_client_index, vcm->my_client_index);
752 vcl_evt (VCL_EVT_DETACH, vcm);
754 vppcom_app_send_detach ();
755 orig_app_timeout = vcm->cfg.app_timeout;
756 vcm->cfg.app_timeout = 2.0;
757 rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED);
758 vcm->cfg.app_timeout = orig_app_timeout;
759 if (PREDICT_FALSE (rv))
760 VDBG (0, "VCL<%d>: application detach timed out! returning %d (%s)",
761 getpid (), rv, vppcom_retval_str (rv));
764 vl_client_disconnect_from_vlib ();
765 vcm->my_client_index = ~0;
766 vcm->app_state = STATE_APP_START;
770 vppcom_session_create (u8 proto, u8 is_nonblocking)
772 vcl_session_t *session;
776 pool_get (vcm->sessions, session);
777 memset (session, 0, sizeof (*session));
778 session_index = session - vcm->sessions;
780 session->session_type = proto;
781 session->session_state = STATE_START;
782 session->vpp_handle = ~0;
783 session->is_dgram = proto == VPPCOM_PROTO_UDP;
786 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
788 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
789 is_nonblocking, session_index);
791 VCL_SESSION_UNLOCK ();
793 VDBG (0, "VCL<%d>: sid %u", getpid (), session_index);
795 return (int) session_index;
799 vppcom_session_close (uint32_t session_index)
801 vcl_session_t *session = 0;
809 session_state_t state;
811 VCL_SESSION_LOCK_AND_GET (session_index, &session);
812 is_vep = session->is_vep;
813 is_vep_session = session->is_vep_session;
814 next_sid = session->vep.next_sid;
815 vep_idx = session->vep.vep_idx;
816 state = session->session_state;
817 vpp_handle = session->vpp_handle;
818 VCL_SESSION_UNLOCK ();
820 if (VPPCOM_DEBUG > 0)
823 clib_warning ("VCL<%d>: vep_idx %u / sid %u: "
824 "closing epoll session...",
825 getpid (), session_index, session_index);
827 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %d: "
828 "closing session...",
829 getpid (), vpp_handle, session_index);
834 while (next_sid != ~0)
836 rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 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_sid, vep_idx,
841 rv, vppcom_retval_str (rv));
843 VCL_SESSION_LOCK_AND_GET (session_index, &session);
844 next_sid = session->vep.next_sid;
845 VCL_SESSION_UNLOCK ();
852 rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0);
854 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
855 "vep_idx %u failed! rv %d (%s)",
856 getpid (), vpp_handle, session_index,
857 vep_idx, rv, vppcom_retval_str (rv));
860 if (state & STATE_LISTEN)
862 rv = vppcom_session_unbind (session_index);
863 if (PREDICT_FALSE (rv < 0))
864 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: listener unbind "
865 "failed! rv %d (%s)",
866 getpid (), vpp_handle, session_index,
867 rv, vppcom_retval_str (rv));
869 else if (state & (CLIENT_STATE_OPEN | SERVER_STATE_OPEN))
871 rv = vppcom_session_disconnect (session_index);
872 if (PREDICT_FALSE (rv < 0))
873 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
874 "session disconnect failed! rv %d (%s)",
875 getpid (), vpp_handle, session_index,
876 rv, vppcom_retval_str (rv));
880 VCL_SESSION_LOCK_AND_GET (session_index, &session);
881 if (vcl_session_is_ct (session))
883 vcl_cut_through_registration_t *ctr;
886 mq_addr = pointer_to_uword (session->our_evt_q);
887 ctr = vcl_ct_registration_lock_and_lookup (mq_addr);
889 if (ctr->epoll_evt_conn_index != ~0)
890 vcl_mq_epoll_del_evfd (ctr->epoll_evt_conn_index);
891 VDBG (0, "Removing ct registration %u",
892 vcl_ct_registration_index (ctr));
893 vcl_ct_registration_del (ctr);
894 vcl_ct_registration_unlock ();
897 vpp_handle = session->vpp_handle;
898 if (vpp_handle != ~0)
900 p = hash_get (vcm->session_index_by_vpp_handles, vpp_handle);
902 hash_unset (vcm->session_index_by_vpp_handles, vpp_handle);
904 pool_put_index (vcm->sessions, session_index);
906 VCL_SESSION_UNLOCK ();
908 if (VPPCOM_DEBUG > 0)
911 clib_warning ("VCL<%d>: vep_idx %u / sid %u: epoll session removed.",
912 getpid (), session_index, session_index);
914 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: session removed.",
915 getpid (), vpp_handle, session_index);
919 vcl_evt (VCL_EVT_CLOSE, session, rv);
925 vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep)
927 vcl_session_t *session = 0;
931 return VPPCOM_EINVAL;
933 VCL_SESSION_LOCK_AND_GET (session_index, &session);
937 VCL_SESSION_UNLOCK ();
938 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
939 "bind to an epoll session!", getpid (), session_index);
944 session->transport.is_ip4 = ep->is_ip4;
946 clib_memcpy (&session->transport.lcl_ip.ip4, ep->ip,
947 sizeof (ip4_address_t));
949 clib_memcpy (&session->transport.lcl_ip.ip6, ep->ip,
950 sizeof (ip6_address_t));
951 session->transport.lcl_port = ep->port;
953 VDBG (0, "VCL<%d>: sid %u: binding to local %s address %U port %u, "
954 "proto %s", getpid (), session_index,
955 session->transport.is_ip4 ? "IPv4" : "IPv6",
956 format_ip46_address, &session->transport.lcl_ip,
957 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
958 clib_net_to_host_u16 (session->transport.lcl_port),
959 session->session_type ? "UDP" : "TCP");
960 vcl_evt (VCL_EVT_BIND, session);
961 VCL_SESSION_UNLOCK ();
963 if (session->session_type == VPPCOM_PROTO_UDP)
964 vppcom_session_listen (session_index, 10);
971 vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len)
973 vcl_session_t *listen_session = 0;
974 u64 listen_vpp_handle;
977 if (q_len == 0 || q_len == ~0)
978 q_len = vcm->cfg.listen_queue_size;
980 VCL_SESSION_LOCK_AND_GET (listen_session_index, &listen_session);
982 if (listen_session->is_vep)
984 VCL_SESSION_UNLOCK ();
985 clib_warning ("VCL<%d>: ERROR: sid %u: cannot listen on an "
986 "epoll session!", getpid (), listen_session_index);
991 listen_vpp_handle = listen_session->vpp_handle;
992 if (listen_session->session_state & STATE_LISTEN)
994 VCL_SESSION_UNLOCK ();
995 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: already in listen state!",
996 getpid (), listen_vpp_handle, listen_session_index);
1001 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: sending VPP bind+listen "
1002 "request...", getpid (), listen_vpp_handle, listen_session_index);
1004 vppcom_send_bind_sock (listen_session, listen_session_index);
1005 VCL_SESSION_UNLOCK ();
1006 retval = vppcom_wait_for_session_state_change (listen_session_index,
1008 vcm->cfg.session_timeout);
1010 VCL_SESSION_LOCK_AND_GET (listen_session_index, &listen_session);
1011 if (PREDICT_FALSE (retval))
1013 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: bind+listen failed! "
1014 "returning %d (%s)", getpid (), listen_session->vpp_handle,
1015 listen_session_index, retval, vppcom_retval_str (retval));
1016 VCL_SESSION_UNLOCK ();
1021 VCL_SESSION_UNLOCK ();
1028 validate_args_session_accept_ (vcl_session_t * listen_session)
1030 u32 listen_session_index = listen_session - vcm->sessions;
1032 /* Input validation - expects spinlock on sessions_lockp */
1033 if (listen_session->is_vep)
1035 clib_warning ("VCL<%d>: ERROR: sid %u: cannot accept on an "
1036 "epoll session!", getpid (), listen_session_index);
1037 return VPPCOM_EBADFD;
1040 if (listen_session->session_state != STATE_LISTEN)
1042 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1043 "not in listen state! state 0x%x (%s)", getpid (),
1044 listen_session->vpp_handle, listen_session_index,
1045 listen_session->session_state,
1046 vppcom_session_state_str (listen_session->session_state));
1047 return VPPCOM_EBADFD;
1053 vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep,
1056 session_accepted_msg_t accepted_msg;
1057 vcl_session_t *listen_session = 0;
1058 vcl_session_t *client_session = 0;
1059 u32 client_session_index = ~0;
1060 svm_msg_q_t *vpp_evt_q;
1061 vcl_session_msg_t *evt;
1062 u64 listen_vpp_handle;
1063 svm_msg_q_msg_t msg;
1068 VCL_SESSION_LOCK_AND_GET (listen_session_index, &listen_session);
1070 if (validate_args_session_accept_ (listen_session))
1072 VCL_SESSION_UNLOCK ();
1076 VCL_SESSION_UNLOCK ();
1078 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1080 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1081 accepted_msg = evt->accepted_msg;
1085 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1086 VCL_SESS_ATTR_NONBLOCK);
1087 if (svm_msg_q_is_empty (vcm->app_event_queue) && is_nonblocking)
1088 return VPPCOM_EAGAIN;
1092 if (svm_msg_q_sub (vcm->app_event_queue, &msg, SVM_Q_WAIT, 0))
1093 return VPPCOM_EAGAIN;
1095 e = svm_msg_q_msg_data (vcm->app_event_queue, &msg);
1096 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1098 clib_warning ("discarded event: %u", e->event_type);
1099 svm_msg_q_free_msg (vcm->app_event_queue, &msg);
1102 clib_memcpy (&accepted_msg, e->data, sizeof (accepted_msg));
1103 svm_msg_q_free_msg (vcm->app_event_queue, &msg);
1109 client_session_index = vcl_session_accepted_handler (&accepted_msg);
1110 listen_session = vcl_session_get (listen_session_index);
1111 VCL_SESSION_LOCK_AND_GET (client_session_index, &client_session);
1112 rv = client_session_index;
1114 if (flags & O_NONBLOCK)
1115 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1117 listen_vpp_handle = listen_session->vpp_handle;
1118 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: Got a client request! "
1119 "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u",
1120 getpid (), listen_vpp_handle, listen_session_index,
1121 client_session->vpp_handle, client_session_index,
1122 flags, VCL_SESS_ATTR_TEST (client_session->attr,
1123 VCL_SESS_ATTR_NONBLOCK));
1127 ep->is_ip4 = client_session->transport.is_ip4;
1128 ep->port = client_session->transport.rmt_port;
1129 if (client_session->transport.is_ip4)
1130 clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip4,
1131 sizeof (ip4_address_t));
1133 clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip6,
1134 sizeof (ip6_address_t));
1137 if (accepted_msg.server_event_queue_address)
1138 vpp_evt_q = uword_to_pointer (accepted_msg.vpp_event_queue_address,
1141 vpp_evt_q = client_session->vpp_evt_q;
1143 vcl_send_session_accepted_reply (vpp_evt_q, client_session->client_context,
1144 client_session->vpp_handle, 0);
1146 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: accepted vpp handle 0x%llx, "
1147 "sid %u connection from peer %s address %U port %u to local %s "
1148 "address %U port %u", getpid (), listen_vpp_handle,
1149 listen_session_index, client_session->vpp_handle,
1150 client_session_index,
1151 client_session->transport.is_ip4 ? "IPv4" : "IPv6",
1152 format_ip46_address, &client_session->transport.rmt_ip,
1153 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1154 clib_net_to_host_u16 (client_session->transport.rmt_port),
1155 client_session->transport.is_ip4 ? "IPv4" : "IPv6",
1156 format_ip46_address, &client_session->transport.lcl_ip,
1157 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1158 clib_net_to_host_u16 (client_session->transport.lcl_port));
1159 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1160 client_session_index);
1161 VCL_SESSION_UNLOCK ();
1168 vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep)
1170 vcl_session_t *session = 0;
1172 int rv, retval = VPPCOM_OK;
1174 VCL_SESSION_LOCK_AND_GET (session_index, &session);
1176 if (PREDICT_FALSE (session->is_vep))
1178 VCL_SESSION_UNLOCK ();
1179 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1180 "connect on an epoll session!", getpid (), session_index);
1185 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1187 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: session already "
1188 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1189 getpid (), session->vpp_handle, session_index,
1190 session->transport.is_ip4 ? "IPv4" : "IPv6",
1191 format_ip46_address,
1192 &session->transport.rmt_ip, session->transport.is_ip4 ?
1193 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1194 clib_net_to_host_u16 (session->transport.rmt_port),
1195 session->session_type ? "UDP" : "TCP", session->session_state,
1196 vppcom_session_state_str (session->session_state));
1198 VCL_SESSION_UNLOCK ();
1202 session->transport.is_ip4 = server_ep->is_ip4;
1203 if (session->transport.is_ip4)
1204 clib_memcpy (&session->transport.rmt_ip.ip4, server_ep->ip,
1205 sizeof (ip4_address_t));
1207 clib_memcpy (&session->transport.rmt_ip.ip6, server_ep->ip,
1208 sizeof (ip6_address_t));
1209 session->transport.rmt_port = server_ep->port;
1211 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connecting to server %s %U "
1213 getpid (), session->vpp_handle, session_index,
1214 session->transport.is_ip4 ? "IPv4" : "IPv6",
1215 format_ip46_address,
1216 &session->transport.rmt_ip, session->transport.is_ip4 ?
1217 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1218 clib_net_to_host_u16 (session->transport.rmt_port),
1219 session->session_type ? "UDP" : "TCP");
1221 vppcom_send_connect_sock (session, session_index);
1222 VCL_SESSION_UNLOCK ();
1224 retval = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1225 vcm->cfg.session_timeout);
1227 VCL_SESSION_LOCK_AND_GET (session_index, &session);
1228 vpp_handle = session->vpp_handle;
1229 VCL_SESSION_UNLOCK ();
1232 if (PREDICT_FALSE (retval))
1235 if (VPPCOM_DEBUG > 0)
1238 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: connect "
1239 "failed! returning %d (%s)", getpid (), vpp_handle,
1240 session_index, rv, vppcom_retval_str (rv));
1242 clib_warning ("VCL<%d>: no session for sid %u: connect failed! "
1243 "returning %d (%s)", getpid (),
1244 session_index, rv, vppcom_retval_str (rv));
1248 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connected!",
1249 getpid (), vpp_handle, session_index);
1255 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1258 return (e->event_type == FIFO_EVENT_APP_RX
1259 && e->fifo->client_session_index == sid);
1261 return (e->event_type == SESSION_IO_EVT_CT_TX);
1265 vcl_session_is_readable (vcl_session_t * s)
1267 return ((s->session_state & STATE_OPEN)
1268 || (s->session_state == STATE_LISTEN
1269 && s->session_type == VPPCOM_PROTO_UDP));
1273 vppcom_session_read_internal (uint32_t session_index, void *buf, int n,
1276 int n_read = 0, rv, is_nonblocking;
1277 vcl_session_t *s = 0;
1278 svm_fifo_t *rx_fifo;
1279 svm_msg_q_msg_t msg;
1286 VCL_SESSION_LOCK_AND_GET (session_index, &s);
1288 if (PREDICT_FALSE (s->is_vep))
1290 VCL_SESSION_UNLOCK ();
1291 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1292 "read from an epoll session!", getpid (), session_index);
1297 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1298 rx_fifo = s->rx_fifo;
1300 if (PREDICT_FALSE (!vcl_session_is_readable (s)))
1302 session_state_t state = s->session_state;
1303 VCL_SESSION_UNLOCK ();
1304 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1306 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: %s session is not open! "
1307 "state 0x%x (%s), returning %d (%s)",
1308 getpid (), s->vpp_handle, session_index, state,
1309 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1313 VCL_SESSION_UNLOCK ();
1314 mq = vcl_session_is_ct (s) ? s->our_evt_q : vcm->app_event_queue;
1315 svm_fifo_unset_event (rx_fifo);
1316 is_full = svm_fifo_is_full (rx_fifo);
1318 if (svm_fifo_is_empty (rx_fifo))
1327 svm_msg_q_lock (mq);
1328 if (svm_msg_q_is_empty (mq))
1329 svm_msg_q_wait (mq);
1331 svm_msg_q_sub_w_lock (mq, &msg);
1332 e = svm_msg_q_msg_data (mq, &msg);
1333 svm_msg_q_unlock (mq);
1334 if (!vcl_is_rx_evt_for_session (e, session_index,
1337 vcl_handle_mq_ctrl_event (e);
1338 svm_msg_q_free_msg (mq, &msg);
1341 svm_fifo_unset_event (rx_fifo);
1342 svm_msg_q_free_msg (mq, &msg);
1343 if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY))
1345 if (svm_fifo_is_empty (rx_fifo))
1352 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1354 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1356 if (vcl_session_is_ct (s) && is_full)
1358 /* If the peer is not polling send notification */
1359 if (!svm_fifo_has_event (s->rx_fifo))
1360 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo,
1361 SESSION_IO_EVT_CT_RX, SVM_Q_WAIT);
1364 if (VPPCOM_DEBUG > 2)
1367 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes "
1368 "from (%p)", getpid (), s->vpp_handle,
1369 session_index, n_read, rx_fifo);
1371 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: nothing read! "
1372 "returning %d (%s)", getpid (), s->vpp_handle,
1373 session_index, rv, vppcom_retval_str (rv));
1382 vppcom_session_read (uint32_t session_index, void *buf, size_t n)
1384 return (vppcom_session_read_internal (session_index, buf, n, 0));
1388 vppcom_session_peek (uint32_t session_index, void *buf, int n)
1390 return (vppcom_session_read_internal (session_index, buf, n, 1));
1394 vppcom_session_read_ready (vcl_session_t * session)
1396 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1397 if (PREDICT_FALSE (session->is_vep))
1399 clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an "
1400 "epoll session!", getpid (), vcl_session_index (session));
1401 return VPPCOM_EBADFD;
1404 if (PREDICT_FALSE (!(session->session_state & (STATE_OPEN | STATE_LISTEN))))
1406 session_state_t state = session->session_state;
1409 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1411 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!"
1412 " state 0x%x (%s), returning %d (%s)", getpid (),
1413 session->vpp_handle, vcl_session_index (session), state,
1414 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1418 if (session->session_state & STATE_LISTEN)
1419 return clib_fifo_elts (session->accept_evts_fifo);
1421 return svm_fifo_max_dequeue (session->rx_fifo);
1425 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1428 return (e->event_type == FIFO_EVENT_APP_TX
1429 && e->fifo->client_session_index == sid);
1431 return (e->event_type == SESSION_IO_EVT_CT_RX);
1435 vppcom_session_write (uint32_t session_index, void *buf, size_t n)
1437 int rv, n_write, is_nonblocking;
1438 vcl_session_t *s = 0;
1439 svm_fifo_t *tx_fifo = 0;
1440 session_evt_type_t et;
1441 svm_msg_q_msg_t msg;
1447 VCL_SESSION_LOCK_AND_GET (session_index, &s);
1449 tx_fifo = s->tx_fifo;
1450 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1452 if (PREDICT_FALSE (s->is_vep))
1454 VCL_SESSION_UNLOCK ();
1455 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1456 "cannot write to an epoll session!",
1457 getpid (), s->vpp_handle, session_index);
1463 if (!(s->session_state & STATE_OPEN))
1465 session_state_t state = s->session_state;
1466 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1467 VCL_SESSION_UNLOCK ();
1468 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! "
1470 getpid (), s->vpp_handle, session_index,
1471 state, vppcom_session_state_str (state));
1475 VCL_SESSION_UNLOCK ();
1477 mq = vcl_session_is_ct (s) ? s->our_evt_q : vcm->app_event_queue;
1478 if (svm_fifo_is_full (tx_fifo))
1482 rv = VPPCOM_EWOULDBLOCK;
1485 while (svm_fifo_is_full (tx_fifo))
1487 svm_msg_q_lock (mq);
1488 while (svm_msg_q_is_empty (mq) && svm_msg_q_timedwait (mq, 10e-6))
1490 svm_msg_q_sub_w_lock (mq, &msg);
1491 e = svm_msg_q_msg_data (mq, &msg);
1492 svm_msg_q_unlock (mq);
1494 if (!vcl_is_tx_evt_for_session (e, session_index,
1496 vcl_handle_mq_ctrl_event (e);
1497 svm_msg_q_free_msg (mq, &msg);
1501 ASSERT (FIFO_EVENT_APP_TX + 1 == SESSION_IO_EVT_CT_TX);
1502 et = FIFO_EVENT_APP_TX + vcl_session_is_ct (s);
1504 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1505 s->vpp_evt_q, buf, n, et, SVM_Q_WAIT);
1507 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1510 ASSERT (n_write > 0);
1512 if (VPPCOM_DEBUG > 2)
1515 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
1516 "FIFO-FULL (%p)", getpid (), s->vpp_handle,
1517 session_index, tx_fifo);
1519 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
1520 "wrote %d bytes tx-fifo: (%p)", getpid (),
1521 s->vpp_handle, session_index, n_write, tx_fifo);
1529 static vcl_session_t *
1530 vcl_ct_session_get_from_fifo (svm_fifo_t * f, u8 type)
1533 s = vcl_session_get (f->client_session_index);
1537 if (type == 0 && s->rx_fifo == f)
1540 if (type == 1 && s->tx_fifo == f)
1543 s = vcl_session_get (f->master_session_index);
1546 if (type == 0 && s->rx_fifo == f)
1548 if (type == 1 && s->tx_fifo == f)
1555 vppcom_session_write_ready (vcl_session_t * session, u32 session_index)
1557 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1558 if (PREDICT_FALSE (session->is_vep))
1560 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1561 "cannot write to an epoll session!",
1562 getpid (), session->vpp_handle, session_index);
1563 return VPPCOM_EBADFD;
1566 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1568 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1569 "cannot write to a listen session!",
1570 getpid (), session->vpp_handle, session_index);
1571 return VPPCOM_EBADFD;
1574 if (PREDICT_FALSE (!(session->session_state & STATE_OPEN)))
1576 session_state_t state = session->session_state;
1579 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1580 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1581 "session is not open! state 0x%x (%s), "
1582 "returning %d (%s)", getpid (), session->vpp_handle,
1584 state, vppcom_session_state_str (state),
1585 rv, vppcom_retval_str (rv));
1589 VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d",
1590 getpid (), session->vpp_handle, session_index, session->tx_fifo,
1591 svm_fifo_max_enqueue (session->tx_fifo));
1593 return svm_fifo_max_enqueue (session->tx_fifo);
1597 vcl_mq_dequeue_batch (svm_msg_q_t * mq)
1599 svm_msg_q_msg_t *msg;
1603 n_msgs = svm_msg_q_size (mq);
1604 for (i = 0; i < n_msgs; i++)
1606 vec_add2 (vcm->mq_msg_vector, msg, 1);
1607 svm_msg_q_sub_w_lock (mq, msg);
1613 vcl_select_handle_mq (svm_msg_q_t * mq, unsigned long n_bits,
1614 unsigned long *read_map, unsigned long *write_map,
1615 unsigned long *except_map, double time_to_wait,
1618 session_disconnected_msg_t *disconnected_msg;
1619 session_connected_msg_t *connected_msg;
1620 session_accepted_msg_t *accepted_msg;
1621 vcl_session_msg_t *vcl_msg;
1622 vcl_session_t *session;
1623 svm_msg_q_msg_t *msg;
1628 svm_msg_q_lock (mq);
1629 if (svm_msg_q_is_empty (mq))
1633 svm_msg_q_unlock (mq);
1639 svm_msg_q_unlock (mq);
1642 else if (time_to_wait < 0)
1644 svm_msg_q_wait (mq);
1648 if (svm_msg_q_timedwait (mq, time_to_wait))
1650 svm_msg_q_unlock (mq);
1655 vcl_mq_dequeue_batch (mq);
1656 svm_msg_q_unlock (mq);
1658 for (i = 0; i < vec_len (vcm->mq_msg_vector); i++)
1660 msg = vec_elt_at_index (vcm->mq_msg_vector, i);
1661 e = svm_msg_q_msg_data (mq, msg);
1662 switch (e->event_type)
1664 case FIFO_EVENT_APP_RX:
1665 sid = e->fifo->client_session_index;
1666 session = vcl_session_get (sid);
1667 if (sid < n_bits && read_map)
1669 clib_bitmap_set_no_check (read_map, sid, 1);
1673 case FIFO_EVENT_APP_TX:
1674 sid = e->fifo->client_session_index;
1675 session = vcl_session_get (sid);
1678 if (sid < n_bits && write_map)
1680 clib_bitmap_set_no_check (write_map, sid, 1);
1684 case SESSION_IO_EVT_CT_TX:
1685 session = vcl_ct_session_get_from_fifo (e->fifo, 0);
1686 sid = vcl_session_index (session);
1687 if (sid < n_bits && read_map)
1689 clib_bitmap_set_no_check (read_map, sid, 1);
1694 case SESSION_IO_EVT_CT_RX:
1695 session = vcl_ct_session_get_from_fifo (e->fifo, 1);
1696 sid = vcl_session_index (session);
1699 if (sid < n_bits && write_map)
1701 clib_bitmap_set_no_check (write_map, sid, 1);
1705 case SESSION_CTRL_EVT_ACCEPTED:
1706 accepted_msg = (session_accepted_msg_t *) e->data;
1707 handle = accepted_msg->listener_handle;
1708 session = vppcom_session_table_lookup_listener (handle);
1711 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
1712 "listener handle %llx", getpid (), handle);
1716 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
1717 vcl_msg->accepted_msg = *accepted_msg;
1718 sid = session - vcm->sessions;
1719 if (sid < n_bits && read_map)
1721 clib_bitmap_set_no_check (read_map, sid, 1);
1725 case SESSION_CTRL_EVT_CONNECTED:
1726 connected_msg = (session_connected_msg_t *) e->data;
1727 vcl_session_connected_handler (connected_msg);
1729 case SESSION_CTRL_EVT_DISCONNECTED:
1730 disconnected_msg = (session_disconnected_msg_t *) e->data;
1731 sid = vcl_session_get_index_from_handle (disconnected_msg->handle);
1732 if (sid < n_bits && except_map)
1734 clib_bitmap_set_no_check (except_map, sid, 1);
1739 clib_warning ("unhandled: %u", e->event_type);
1742 svm_msg_q_free_msg (mq, msg);
1745 vec_reset_length (vcm->mq_msg_vector);
1750 vppcom_select_condvar (unsigned long n_bits, unsigned long *read_map,
1751 unsigned long *write_map, unsigned long *except_map,
1752 double time_to_wait, u32 * bits_set)
1754 double total_wait = 0, wait_slice;
1755 vcl_cut_through_registration_t *cr;
1757 time_to_wait = (time_to_wait == -1) ? 10e9 : time_to_wait;
1758 wait_slice = vcm->cut_through_registrations ? 10e-6 : time_to_wait;
1762 pool_foreach (cr, vcm->cut_through_registrations, ({
1763 vcl_select_handle_mq (cr->mq, n_bits, read_map, write_map, except_map,
1768 vcl_select_handle_mq (vcm->app_event_queue, n_bits, read_map, write_map,
1769 except_map, time_to_wait, bits_set);
1770 total_wait += wait_slice;
1774 while (total_wait < time_to_wait);
1780 vppcom_select_eventfd (unsigned long n_bits, unsigned long *read_map,
1781 unsigned long *write_map, unsigned long *except_map,
1782 double time_to_wait, u32 * bits_set)
1784 vcl_mq_evt_conn_t *mqc;
1785 int __clib_unused n_read;
1789 vec_validate (vcm->mq_events, pool_elts (vcm->mq_evt_conns));
1790 n_mq_evts = epoll_wait (vcm->mqs_epfd, vcm->mq_events,
1791 vec_len (vcm->mq_events), time_to_wait);
1792 for (i = 0; i < n_mq_evts; i++)
1794 mqc = vcl_mq_evt_conn_get (vcm->mq_events[i].data.u32);
1795 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1796 vcl_select_handle_mq (mqc->mq, n_bits, read_map, write_map,
1797 except_map, 0, bits_set);
1800 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1804 vppcom_select (unsigned long n_bits, unsigned long *read_map,
1805 unsigned long *write_map, unsigned long *except_map,
1806 double time_to_wait)
1808 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
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 (vcm->rd_bitmap, minbits);
1817 clib_memcpy (vcm->rd_bitmap, read_map,
1818 vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t));
1819 memset (read_map, 0, vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t));
1821 if (n_bits && write_map)
1823 clib_bitmap_validate (vcm->wr_bitmap, minbits);
1824 clib_memcpy (vcm->wr_bitmap, write_map,
1825 vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t));
1826 memset (write_map, 0,
1827 vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t));
1829 if (n_bits && except_map)
1831 clib_bitmap_validate (vcm->ex_bitmap, minbits);
1832 clib_memcpy (vcm->ex_bitmap, except_map,
1833 vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t));
1834 memset (except_map, 0,
1835 vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t));
1845 clib_bitmap_foreach (sid, vcm->wr_bitmap, ({
1846 if (!(session = vcl_session_get (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, vcm->rd_bitmap, ({
1866 if (!(session = vcl_session_get (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 (n_bits, read_map, write_map, except_map,
1886 time_to_wait, &bits_set);
1888 vppcom_select_condvar (n_bits, read_map, write_map, except_map,
1889 time_to_wait, &bits_set);
1895 vep_verify_epoll_chain (u32 vep_idx)
1897 vcl_session_t *session;
1898 vppcom_epoll_t *vep;
1902 if (VPPCOM_DEBUG <= 1)
1905 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1906 rv = vppcom_session_at_index (vep_idx, &session);
1907 if (PREDICT_FALSE (rv))
1909 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
1910 getpid (), vep_idx);
1913 if (PREDICT_FALSE (!session->is_vep))
1915 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
1916 getpid (), vep_idx);
1919 vep = &session->vep;
1920 clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n"
1923 " is_vep_session = %u\n"
1924 " next_sid = 0x%x (%u)\n"
1925 " wait_cont_idx = 0x%x (%u)\n"
1926 "}\n", getpid (), vep_idx,
1927 session->is_vep, session->is_vep_session,
1928 vep->next_sid, vep->next_sid,
1929 session->wait_cont_idx, session->wait_cont_idx);
1931 for (sid = vep->next_sid; sid != ~0; sid = vep->next_sid)
1933 rv = vppcom_session_at_index (sid, &session);
1934 if (PREDICT_FALSE (rv))
1936 clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
1939 if (PREDICT_FALSE (session->is_vep))
1940 clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!",
1941 getpid (), vep_idx);
1942 else if (PREDICT_FALSE (!session->is_vep_session))
1944 clib_warning ("VCL<%d>: ERROR: session (%u) "
1945 "is not a vep session!", getpid (), sid);
1948 vep = &session->vep;
1949 if (PREDICT_FALSE (vep->vep_idx != vep_idx))
1950 clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
1951 "vep_idx (%u)!", getpid (),
1952 sid, session->vep.vep_idx, vep_idx);
1953 if (session->is_vep_session)
1955 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
1957 " next_sid = 0x%x (%u)\n"
1958 " prev_sid = 0x%x (%u)\n"
1959 " vep_idx = 0x%x (%u)\n"
1960 " ev.events = 0x%x\n"
1961 " ev.data.u64 = 0x%llx\n"
1965 vep->next_sid, vep->next_sid,
1966 vep->prev_sid, vep->prev_sid,
1967 vep->vep_idx, vep->vep_idx,
1968 vep->ev.events, vep->ev.data.u64, vep->et_mask);
1973 clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n",
1974 getpid (), vep_idx);
1978 vppcom_epoll_create (void)
1980 vcl_session_t *vep_session;
1983 VCL_SESSION_LOCK ();
1984 pool_get (vcm->sessions, vep_session);
1985 memset (vep_session, 0, sizeof (*vep_session));
1986 vep_idx = vep_session - vcm->sessions;
1988 vep_session->is_vep = 1;
1989 vep_session->vep.vep_idx = ~0;
1990 vep_session->vep.next_sid = ~0;
1991 vep_session->vep.prev_sid = ~0;
1992 vep_session->wait_cont_idx = ~0;
1993 vep_session->vpp_handle = ~0;
1994 vep_session->poll_reg = 0;
1996 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_idx);
1997 VCL_SESSION_UNLOCK ();
1999 VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!",
2000 getpid (), vep_idx, vep_idx);
2006 vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index,
2007 struct epoll_event *event)
2009 vcl_session_t *vep_session;
2010 vcl_session_t *session;
2013 if (vep_idx == session_index)
2015 clib_warning ("VCL<%d>: ERROR: vep_idx == session_index (%u)!",
2016 getpid (), vep_idx);
2017 return VPPCOM_EINVAL;
2020 VCL_SESSION_LOCK ();
2021 rv = vppcom_session_at_index (vep_idx, &vep_session);
2022 if (PREDICT_FALSE (rv))
2024 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_idx);
2027 if (PREDICT_FALSE (!vep_session->is_vep))
2029 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2030 getpid (), vep_idx);
2035 ASSERT (vep_session->vep.vep_idx == ~0);
2036 ASSERT (vep_session->vep.prev_sid == ~0);
2038 rv = vppcom_session_at_index (session_index, &session);
2039 if (PREDICT_FALSE (rv))
2041 VDBG (0, "VCL<%d>: ERROR: Invalid session_index (%u)!",
2042 getpid (), session_index);
2045 if (PREDICT_FALSE (session->is_vep))
2047 clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx);
2055 if (PREDICT_FALSE (!event))
2057 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: NULL pointer to "
2058 "epoll_event structure!", getpid ());
2062 if (vep_session->vep.next_sid != ~0)
2064 vcl_session_t *next_session;
2065 rv = vppcom_session_at_index (vep_session->vep.next_sid,
2067 if (PREDICT_FALSE (rv))
2069 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid "
2070 "vep.next_sid (%u) on vep_idx (%u)!",
2071 getpid (), vep_session->vep.next_sid, vep_idx);
2074 ASSERT (next_session->vep.prev_sid == vep_idx);
2075 next_session->vep.prev_sid = session_index;
2077 session->vep.next_sid = vep_session->vep.next_sid;
2078 session->vep.prev_sid = vep_idx;
2079 session->vep.vep_idx = vep_idx;
2080 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2081 session->vep.ev = *event;
2082 session->is_vep = 0;
2083 session->is_vep_session = 1;
2084 vep_session->vep.next_sid = session_index;
2086 /* VCL Event Register handler */
2087 if (session->session_state & STATE_LISTEN)
2089 /* Register handler for connect_request event on listen_session_index */
2090 vce_event_key_t evk;
2091 evk.session_index = session_index;
2092 evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED;
2093 vep_session->poll_reg =
2094 vce_register_handler (&vcm->event_thread, &evk,
2095 vce_poll_wait_connect_request_handler_fn,
2096 0 /* No callback args */ );
2098 VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, "
2099 "sid %u, events 0x%x, data 0x%llx!",
2100 getpid (), vep_idx, session_index,
2101 event->events, event->data.u64);
2102 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2106 if (PREDICT_FALSE (!event))
2108 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_MOD: NULL pointer to "
2109 "epoll_event structure!", getpid ());
2113 else if (PREDICT_FALSE (!session->is_vep_session))
2115 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2116 "not a vep session!", getpid (), session_index);
2120 else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
2122 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2123 "vep_idx (%u) != vep_idx (%u)!",
2124 getpid (), session_index,
2125 session->vep.vep_idx, vep_idx);
2129 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2130 session->vep.ev = *event;
2131 VDBG (1, "VCL<%d>: EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
2132 " data 0x%llx!", getpid (), vep_idx, session_index, event->events,
2137 if (PREDICT_FALSE (!session->is_vep_session))
2139 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2140 "not a vep session!", getpid (), session_index);
2144 else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
2146 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2147 "vep_idx (%u) != vep_idx (%u)!",
2148 getpid (), session_index,
2149 session->vep.vep_idx, vep_idx);
2154 /* VCL Event Un-register handler */
2155 if ((session->session_state & STATE_LISTEN) && vep_session->poll_reg)
2157 (void) vce_unregister_handler (&vcm->event_thread,
2158 vep_session->poll_reg);
2161 vep_session->wait_cont_idx =
2162 (vep_session->wait_cont_idx == session_index) ?
2163 session->vep.next_sid : vep_session->wait_cont_idx;
2165 if (session->vep.prev_sid == vep_idx)
2166 vep_session->vep.next_sid = session->vep.next_sid;
2169 vcl_session_t *prev_session;
2170 rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session);
2171 if (PREDICT_FALSE (rv))
2173 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2174 "vep.prev_sid (%u) on sid (%u)!",
2175 getpid (), session->vep.prev_sid, session_index);
2178 ASSERT (prev_session->vep.next_sid == session_index);
2179 prev_session->vep.next_sid = session->vep.next_sid;
2181 if (session->vep.next_sid != ~0)
2183 vcl_session_t *next_session;
2184 rv = vppcom_session_at_index (session->vep.next_sid, &next_session);
2185 if (PREDICT_FALSE (rv))
2187 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2188 "vep.next_sid (%u) on sid (%u)!",
2189 getpid (), session->vep.next_sid, session_index);
2192 ASSERT (next_session->vep.prev_sid == session_index);
2193 next_session->vep.prev_sid = session->vep.prev_sid;
2196 memset (&session->vep, 0, sizeof (session->vep));
2197 session->vep.next_sid = ~0;
2198 session->vep.prev_sid = ~0;
2199 session->vep.vep_idx = ~0;
2200 session->is_vep_session = 0;
2201 VDBG (1, "VCL<%d>: EPOLL_CTL_DEL: vep_idx %u, sid %u!",
2202 getpid (), vep_idx, session_index);
2203 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_idx);
2207 clib_warning ("VCL<%d>: ERROR: Invalid operation (%d)!", getpid (), op);
2211 vep_verify_epoll_chain (vep_idx);
2214 VCL_SESSION_UNLOCK ();
2219 vcl_epoll_wait_handle_mq (svm_msg_q_t * mq, struct epoll_event *events,
2220 u32 maxevents, double wait_for_time, u32 * num_ev)
2222 session_disconnected_msg_t *disconnected_msg;
2223 session_connected_msg_t *connected_msg;
2224 session_accepted_msg_t *accepted_msg;
2225 u64 session_evt_data = ~0, handle;
2226 u32 sid = ~0, session_events;
2227 vcl_session_msg_t *vcl_msg;
2228 vcl_session_t *session;
2229 svm_msg_q_msg_t *msg;
2234 svm_msg_q_lock (mq);
2235 if (svm_msg_q_is_empty (mq))
2239 svm_msg_q_unlock (mq);
2242 else if (wait_for_time < 0)
2244 svm_msg_q_wait (mq);
2248 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2250 svm_msg_q_unlock (mq);
2255 vcl_mq_dequeue_batch (mq);
2256 svm_msg_q_unlock (mq);
2258 for (i = 0; i < vec_len (vcm->mq_msg_vector); i++)
2260 msg = vec_elt_at_index (vcm->mq_msg_vector, i);
2261 e = svm_msg_q_msg_data (mq, msg);
2263 switch (e->event_type)
2265 case FIFO_EVENT_APP_RX:
2266 sid = e->fifo->client_session_index;
2267 session = vcl_session_get (sid);
2268 session_events = session->vep.ev.events;
2269 if (!(EPOLLIN & session->vep.ev.events))
2272 events[*num_ev].events |= EPOLLIN;
2273 session_evt_data = session->vep.ev.data.u64;
2275 case FIFO_EVENT_APP_TX:
2276 sid = e->fifo->client_session_index;
2277 session = vcl_session_get (sid);
2278 session_events = session->vep.ev.events;
2279 if (!(EPOLLOUT & session_events))
2282 events[*num_ev].events |= EPOLLOUT;
2283 session_evt_data = session->vep.ev.data.u64;
2285 case SESSION_IO_EVT_CT_TX:
2286 session = vcl_ct_session_get_from_fifo (e->fifo, 0);
2287 sid = vcl_session_index (session);
2288 session_events = session->vep.ev.events;
2289 if (!(EPOLLIN & session->vep.ev.events))
2292 events[*num_ev].events |= EPOLLIN;
2293 session_evt_data = session->vep.ev.data.u64;
2295 case SESSION_IO_EVT_CT_RX:
2296 session = vcl_ct_session_get_from_fifo (e->fifo, 1);
2297 sid = vcl_session_index (session);
2298 session_events = session->vep.ev.events;
2299 if (!(EPOLLOUT & session_events))
2302 events[*num_ev].events |= EPOLLOUT;
2303 session_evt_data = session->vep.ev.data.u64;
2305 case SESSION_CTRL_EVT_ACCEPTED:
2306 accepted_msg = (session_accepted_msg_t *) e->data;
2307 handle = accepted_msg->listener_handle;
2308 session = vppcom_session_table_lookup_listener (handle);
2311 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
2312 "listener handle %llx", getpid (), handle);
2316 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
2317 vcl_msg->accepted_msg = *accepted_msg;
2318 session_events = session->vep.ev.events;
2319 if (!(EPOLLIN & session_events))
2323 events[*num_ev].events |= EPOLLIN;
2324 session_evt_data = session->vep.ev.data.u64;
2326 case SESSION_CTRL_EVT_CONNECTED:
2327 connected_msg = (session_connected_msg_t *) e->data;
2328 vcl_session_connected_handler (connected_msg);
2329 /* Generate EPOLLOUT because there's no connected event */
2330 sid = vcl_session_get_index_from_handle (connected_msg->handle);
2331 clib_spinlock_lock (&vcm->sessions_lockp);
2332 session = vcl_session_get (sid);
2333 session_events = session->vep.ev.events;
2334 if (EPOLLOUT & session_events)
2337 events[*num_ev].events |= EPOLLOUT;
2338 session_evt_data = session->vep.ev.data.u64;
2340 clib_spinlock_unlock (&vcm->sessions_lockp);
2342 case SESSION_CTRL_EVT_DISCONNECTED:
2343 disconnected_msg = (session_disconnected_msg_t *) e->data;
2344 sid = vcl_session_get_index_from_handle (disconnected_msg->handle);
2345 clib_spinlock_lock (&vcm->sessions_lockp);
2346 session = vcl_session_get (sid);
2348 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2349 session_evt_data = session->vep.ev.data.u64;
2350 session_events = session->vep.ev.events;
2351 clib_spinlock_unlock (&vcm->sessions_lockp);
2354 clib_warning ("unhandled: %u", e->event_type);
2355 svm_msg_q_free_msg (mq, msg);
2358 svm_msg_q_free_msg (mq, msg);
2362 events[*num_ev].data.u64 = session_evt_data;
2363 if (EPOLLONESHOT & session_events)
2365 clib_spinlock_lock (&vcm->sessions_lockp);
2366 session = vcl_session_get (sid);
2367 session->vep.ev.events = 0;
2368 clib_spinlock_unlock (&vcm->sessions_lockp);
2371 if (*num_ev == maxevents)
2376 vec_reset_length (vcm->mq_msg_vector);
2381 vppcom_epoll_wait_condvar (struct epoll_event *events, int maxevents,
2382 double wait_for_time)
2384 vcl_cut_through_registration_t *cr;
2385 double total_wait = 0, wait_slice;
2389 wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time;
2390 wait_slice = vcm->cut_through_registrations ? 10e-6 : wait_for_time;
2395 pool_foreach (cr, vcm->cut_through_registrations, ({
2396 vcl_epoll_wait_handle_mq (cr->mq, events, maxevents, 0, &num_ev);
2400 rv = vcl_epoll_wait_handle_mq (vcm->app_event_queue, events, maxevents,
2401 num_ev ? 0 : wait_slice, &num_ev);
2403 total_wait += wait_slice;
2407 while (total_wait < wait_for_time);
2408 return (int) num_ev;
2412 vppcom_epoll_wait_eventfd (struct epoll_event *events, int maxevents,
2413 double wait_for_time)
2415 vcl_mq_evt_conn_t *mqc;
2416 int __clib_unused n_read;
2421 vec_validate (vcm->mq_events, pool_elts (vcm->mq_evt_conns));
2422 n_mq_evts = epoll_wait (vcm->mqs_epfd, vcm->mq_events,
2423 vec_len (vcm->mq_events), wait_for_time);
2424 for (i = 0; i < n_mq_evts; i++)
2426 mqc = vcl_mq_evt_conn_get (vcm->mq_events[i].data.u32);
2427 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2428 vcl_epoll_wait_handle_mq (mqc->mq, events, maxevents, 0, &n_evts);
2431 return (int) n_evts;
2435 vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events,
2436 int maxevents, double wait_for_time)
2438 vcl_session_t *vep_session;
2440 if (PREDICT_FALSE (maxevents <= 0))
2442 clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
2443 getpid (), maxevents);
2444 return VPPCOM_EINVAL;
2447 clib_spinlock_lock (&vcm->sessions_lockp);
2448 vep_session = vcl_session_get (vep_idx);
2449 if (PREDICT_FALSE (!vep_session->is_vep))
2451 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2452 getpid (), vep_idx);
2453 clib_spinlock_unlock (&vcm->sessions_lockp);
2454 return VPPCOM_EINVAL;
2456 clib_spinlock_unlock (&vcm->sessions_lockp);
2458 memset (events, 0, sizeof (*events) * maxevents);
2460 if (vcm->cfg.use_mq_eventfd)
2461 return vppcom_epoll_wait_eventfd (events, maxevents, wait_for_time);
2463 return vppcom_epoll_wait_condvar (events, maxevents, wait_for_time);
2467 vppcom_session_attr (uint32_t session_index, uint32_t op,
2468 void *buffer, uint32_t * buflen)
2470 vcl_session_t *session;
2472 u32 *flags = buffer;
2473 vppcom_endpt_t *ep = buffer;
2475 VCL_SESSION_LOCK_AND_GET (session_index, &session);
2481 case VPPCOM_ATTR_GET_NREAD:
2482 rv = vppcom_session_read_ready (session);
2483 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d",
2487 case VPPCOM_ATTR_GET_NWRITE:
2488 rv = vppcom_session_write_ready (session, session_index);
2489 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
2490 getpid (), session_index, rv);
2493 case VPPCOM_ATTR_GET_FLAGS:
2494 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2496 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2497 VCL_SESS_ATTR_NONBLOCK));
2498 *buflen = sizeof (*flags);
2499 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
2500 "is_nonblocking = %u", getpid (),
2501 session_index, *flags,
2502 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2508 case VPPCOM_ATTR_SET_FLAGS:
2509 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2511 if (*flags & O_NONBLOCK)
2512 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2514 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2516 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
2517 " is_nonblocking = %u",
2518 getpid (), session_index, *flags,
2519 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2525 case VPPCOM_ATTR_GET_PEER_ADDR:
2526 if (PREDICT_TRUE (buffer && buflen &&
2527 (*buflen >= sizeof (*ep)) && ep->ip))
2529 ep->is_ip4 = session->transport.is_ip4;
2530 ep->port = session->transport.rmt_port;
2531 if (session->transport.is_ip4)
2532 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
2533 sizeof (ip4_address_t));
2535 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
2536 sizeof (ip6_address_t));
2537 *buflen = sizeof (*ep);
2538 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
2539 "addr = %U, port %u", getpid (),
2540 session_index, ep->is_ip4, format_ip46_address,
2541 &session->transport.rmt_ip,
2542 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2543 clib_net_to_host_u16 (ep->port));
2549 case VPPCOM_ATTR_GET_LCL_ADDR:
2550 if (PREDICT_TRUE (buffer && buflen &&
2551 (*buflen >= sizeof (*ep)) && ep->ip))
2553 ep->is_ip4 = session->transport.is_ip4;
2554 ep->port = session->transport.lcl_port;
2555 if (session->transport.is_ip4)
2556 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip4,
2557 sizeof (ip4_address_t));
2559 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip6,
2560 sizeof (ip6_address_t));
2561 *buflen = sizeof (*ep);
2562 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
2563 " addr = %U port %d", getpid (),
2564 session_index, ep->is_ip4, format_ip46_address,
2565 &session->transport.lcl_ip,
2566 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2567 clib_net_to_host_u16 (ep->port));
2573 case VPPCOM_ATTR_GET_LIBC_EPFD:
2574 rv = session->libc_epfd;
2575 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
2579 case VPPCOM_ATTR_SET_LIBC_EPFD:
2580 if (PREDICT_TRUE (buffer && buflen &&
2581 (*buflen == sizeof (session->libc_epfd))))
2583 session->libc_epfd = *(int *) buffer;
2584 *buflen = sizeof (session->libc_epfd);
2586 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, "
2587 "buflen %d", getpid (), session->libc_epfd, *buflen);
2593 case VPPCOM_ATTR_GET_PROTOCOL:
2594 if (buffer && buflen && (*buflen >= sizeof (int)))
2596 *(int *) buffer = session->session_type;
2597 *buflen = sizeof (int);
2599 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2600 getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP",
2607 case VPPCOM_ATTR_GET_LISTEN:
2608 if (buffer && buflen && (*buflen >= sizeof (int)))
2610 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2611 VCL_SESS_ATTR_LISTEN);
2612 *buflen = sizeof (int);
2614 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d",
2615 getpid (), *(int *) buffer, *buflen);
2621 case VPPCOM_ATTR_GET_ERROR:
2622 if (buffer && buflen && (*buflen >= sizeof (int)))
2624 *(int *) buffer = 0;
2625 *buflen = sizeof (int);
2627 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2628 getpid (), *(int *) buffer, *buflen);
2634 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2635 if (buffer && buflen && (*buflen >= sizeof (u32)))
2639 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2640 session->tx_fifo ? session->tx_fifo->nitems :
2641 vcm->cfg.tx_fifo_size);
2642 *buflen = sizeof (u32);
2644 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
2645 "buflen %d, #VPP-TBD#", getpid (),
2646 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2652 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2653 if (buffer && buflen && (*buflen == sizeof (u32)))
2656 session->sndbuf_size = *(u32 *) buffer;
2657 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), "
2658 "buflen %d, #VPP-TBD#", getpid (),
2659 session->sndbuf_size, session->sndbuf_size, *buflen);
2665 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2666 if (buffer && buflen && (*buflen >= sizeof (u32)))
2670 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2671 session->rx_fifo ? session->rx_fifo->nitems :
2672 vcm->cfg.rx_fifo_size);
2673 *buflen = sizeof (u32);
2675 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
2676 "buflen %d, #VPP-TBD#", getpid (),
2677 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2683 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2684 if (buffer && buflen && (*buflen == sizeof (u32)))
2687 session->rcvbuf_size = *(u32 *) buffer;
2688 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), "
2689 "buflen %d, #VPP-TBD#", getpid (),
2690 session->sndbuf_size, session->sndbuf_size, *buflen);
2696 case VPPCOM_ATTR_GET_REUSEADDR:
2697 if (buffer && buflen && (*buflen >= sizeof (int)))
2700 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2701 VCL_SESS_ATTR_REUSEADDR);
2702 *buflen = sizeof (int);
2704 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
2705 "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2711 case VPPCOM_ATTR_SET_REUSEADDR:
2712 if (buffer && buflen && (*buflen == sizeof (int)) &&
2713 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2716 if (*(int *) buffer)
2717 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2719 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2721 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d,"
2722 " #VPP-TBD#", getpid (),
2723 VCL_SESS_ATTR_TEST (session->attr,
2724 VCL_SESS_ATTR_REUSEADDR), *buflen);
2730 case VPPCOM_ATTR_GET_REUSEPORT:
2731 if (buffer && buflen && (*buflen >= sizeof (int)))
2734 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2735 VCL_SESS_ATTR_REUSEPORT);
2736 *buflen = sizeof (int);
2738 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d,"
2739 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2745 case VPPCOM_ATTR_SET_REUSEPORT:
2746 if (buffer && buflen && (*buflen == sizeof (int)) &&
2747 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2750 if (*(int *) buffer)
2751 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2753 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2755 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d,"
2756 " #VPP-TBD#", getpid (),
2757 VCL_SESS_ATTR_TEST (session->attr,
2758 VCL_SESS_ATTR_REUSEPORT), *buflen);
2764 case VPPCOM_ATTR_GET_BROADCAST:
2765 if (buffer && buflen && (*buflen >= sizeof (int)))
2768 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2769 VCL_SESS_ATTR_BROADCAST);
2770 *buflen = sizeof (int);
2772 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d,"
2773 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2779 case VPPCOM_ATTR_SET_BROADCAST:
2780 if (buffer && buflen && (*buflen == sizeof (int)))
2783 if (*(int *) buffer)
2784 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2786 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2788 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, "
2789 "#VPP-TBD#", getpid (),
2790 VCL_SESS_ATTR_TEST (session->attr,
2791 VCL_SESS_ATTR_BROADCAST), *buflen);
2797 case VPPCOM_ATTR_GET_V6ONLY:
2798 if (buffer && buflen && (*buflen >= sizeof (int)))
2801 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2802 VCL_SESS_ATTR_V6ONLY);
2803 *buflen = sizeof (int);
2805 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, "
2806 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2812 case VPPCOM_ATTR_SET_V6ONLY:
2813 if (buffer && buflen && (*buflen == sizeof (int)))
2816 if (*(int *) buffer)
2817 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2819 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2821 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, "
2822 "#VPP-TBD#", getpid (),
2823 VCL_SESS_ATTR_TEST (session->attr,
2824 VCL_SESS_ATTR_V6ONLY), *buflen);
2830 case VPPCOM_ATTR_GET_KEEPALIVE:
2831 if (buffer && buflen && (*buflen >= sizeof (int)))
2834 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2835 VCL_SESS_ATTR_KEEPALIVE);
2836 *buflen = sizeof (int);
2838 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, "
2839 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2845 case VPPCOM_ATTR_SET_KEEPALIVE:
2846 if (buffer && buflen && (*buflen == sizeof (int)))
2849 if (*(int *) buffer)
2850 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2852 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2854 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, "
2855 "#VPP-TBD#", getpid (),
2856 VCL_SESS_ATTR_TEST (session->attr,
2857 VCL_SESS_ATTR_KEEPALIVE), *buflen);
2863 case VPPCOM_ATTR_GET_TCP_NODELAY:
2864 if (buffer && buflen && (*buflen >= sizeof (int)))
2867 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2868 VCL_SESS_ATTR_TCP_NODELAY);
2869 *buflen = sizeof (int);
2871 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, "
2872 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2878 case VPPCOM_ATTR_SET_TCP_NODELAY:
2879 if (buffer && buflen && (*buflen == sizeof (int)))
2882 if (*(int *) buffer)
2883 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
2885 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
2887 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, "
2888 "#VPP-TBD#", getpid (),
2889 VCL_SESS_ATTR_TEST (session->attr,
2890 VCL_SESS_ATTR_TCP_NODELAY), *buflen);
2896 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
2897 if (buffer && buflen && (*buflen >= sizeof (int)))
2900 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2901 VCL_SESS_ATTR_TCP_KEEPIDLE);
2902 *buflen = sizeof (int);
2904 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, "
2905 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2911 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
2912 if (buffer && buflen && (*buflen == sizeof (int)))
2915 if (*(int *) buffer)
2916 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
2918 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
2920 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, "
2921 "#VPP-TBD#", getpid (),
2922 VCL_SESS_ATTR_TEST (session->attr,
2923 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
2929 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
2930 if (buffer && buflen && (*buflen >= sizeof (int)))
2933 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2934 VCL_SESS_ATTR_TCP_KEEPINTVL);
2935 *buflen = sizeof (int);
2937 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, "
2938 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2944 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
2945 if (buffer && buflen && (*buflen == sizeof (int)))
2948 if (*(int *) buffer)
2949 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
2951 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
2953 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, "
2954 "#VPP-TBD#", getpid (),
2955 VCL_SESS_ATTR_TEST (session->attr,
2956 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
2962 case VPPCOM_ATTR_GET_TCP_USER_MSS:
2963 if (buffer && buflen && (*buflen >= sizeof (u32)))
2966 *(u32 *) buffer = session->user_mss;
2967 *buflen = sizeof (int);
2969 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d,"
2970 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2976 case VPPCOM_ATTR_SET_TCP_USER_MSS:
2977 if (buffer && buflen && (*buflen == sizeof (u32)))
2980 session->user_mss = *(u32 *) buffer;
2982 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, "
2983 "#VPP-TBD#", getpid (), session->user_mss, *buflen);
2995 VCL_SESSION_UNLOCK ();
3000 vppcom_session_recvfrom (uint32_t session_index, void *buffer,
3001 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3004 vcl_session_t *session = 0;
3008 VCL_SESSION_LOCK ();
3009 rv = vppcom_session_at_index (session_index, &session);
3010 if (PREDICT_FALSE (rv))
3012 VCL_SESSION_UNLOCK ();
3013 VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
3014 getpid (), session_index);
3015 VCL_SESSION_UNLOCK ();
3016 return VPPCOM_EBADFD;
3018 ep->is_ip4 = session->transport.is_ip4;
3019 ep->port = session->transport.rmt_port;
3020 VCL_SESSION_UNLOCK ();
3024 rv = vppcom_session_read (session_index, buffer, buflen);
3025 else if (flags & MSG_PEEK)
3026 rv = vppcom_session_peek (session_index, buffer, buflen);
3029 clib_warning ("VCL<%d>: Unsupport flags for recvfrom %d",
3031 return VPPCOM_EAFNOSUPPORT;
3036 if (session->transport.is_ip4)
3037 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
3038 sizeof (ip4_address_t));
3040 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
3041 sizeof (ip6_address_t));
3048 vppcom_session_sendto (uint32_t session_index, void *buffer,
3049 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3052 return VPPCOM_EINVAL;
3057 return VPPCOM_EINVAL;
3062 // TBD check the flags and do the right thing
3063 VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.",
3064 getpid (), flags, flags);
3067 return (vppcom_session_write (session_index, buffer, buflen));
3071 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3073 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
3074 u32 i, keep_trying = 1;
3077 VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
3078 getpid (), vp, n_sids, wait_for_time);
3081 return VPPCOM_EFAULT;
3085 vcl_session_t *session;
3087 for (i = 0; i < n_sids; i++)
3089 ASSERT (vp[i].revents);
3091 VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session);
3092 VCL_SESSION_UNLOCK ();
3097 if (POLLIN & vp[i].events)
3099 VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session);
3100 rv = vppcom_session_read_ready (session);
3101 VCL_SESSION_UNLOCK ();
3104 *vp[i].revents |= POLLIN;
3111 case VPPCOM_ECONNRESET:
3112 *vp[i].revents = POLLHUP;
3116 *vp[i].revents = POLLERR;
3123 if (POLLOUT & vp[i].events)
3125 VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session);
3126 rv = vppcom_session_write_ready (session, vp[i].sid);
3127 VCL_SESSION_UNLOCK ();
3130 *vp[i].revents |= POLLOUT;
3137 case VPPCOM_ECONNRESET:
3138 *vp[i].revents = POLLHUP;
3142 *vp[i].revents = POLLERR;
3149 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3152 *vp[i].revents = POLLNVAL;
3156 if (wait_for_time != -1)
3157 keep_trying = (clib_time_now (&vcm->clib_time) <= timeout) ? 1 : 0;
3159 while ((num_ev == 0) && keep_trying);
3161 if (VPPCOM_DEBUG > 3)
3163 clib_warning ("VCL<%d>: returning %d", getpid (), num_ev);
3164 for (i = 0; i < n_sids; i++)
3166 clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
3167 ".revents 0x%x", getpid (), i, vp[i].sid, vp[i].sid,
3168 vp[i].events, *vp[i].revents);
3175 vppcom_mq_epoll_fd (void)
3177 return vcm->mqs_epfd;
3181 * fd.io coding-style-patch-verification: ON
3184 * eval: (c-set-style "gnu")