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 if (svm_fifo_is_empty (rx_fifo))
1344 svm_msg_q_free_msg (mq, &msg);
1347 svm_msg_q_free_msg (mq, &msg);
1353 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1355 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1357 if (vcl_session_is_ct (s) && is_full)
1359 /* If the peer is not polling send notification */
1360 if (!svm_fifo_has_event (s->rx_fifo))
1361 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo,
1362 SESSION_IO_EVT_CT_RX, SVM_Q_WAIT);
1365 if (VPPCOM_DEBUG > 2)
1368 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes "
1369 "from (%p)", getpid (), s->vpp_handle,
1370 session_index, n_read, rx_fifo);
1372 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: nothing read! "
1373 "returning %d (%s)", getpid (), s->vpp_handle,
1374 session_index, rv, vppcom_retval_str (rv));
1383 vppcom_session_read (uint32_t session_index, void *buf, size_t n)
1385 return (vppcom_session_read_internal (session_index, buf, n, 0));
1389 vppcom_session_peek (uint32_t session_index, void *buf, int n)
1391 return (vppcom_session_read_internal (session_index, buf, n, 1));
1395 vppcom_session_read_ready (vcl_session_t * session)
1397 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1398 if (PREDICT_FALSE (session->is_vep))
1400 clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an "
1401 "epoll session!", getpid (), vcl_session_index (session));
1402 return VPPCOM_EBADFD;
1405 if (PREDICT_FALSE (!(session->session_state & (STATE_OPEN | STATE_LISTEN))))
1407 session_state_t state = session->session_state;
1410 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1412 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!"
1413 " state 0x%x (%s), returning %d (%s)", getpid (),
1414 session->vpp_handle, vcl_session_index (session), state,
1415 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1419 if (session->session_state & STATE_LISTEN)
1420 return clib_fifo_elts (session->accept_evts_fifo);
1422 return svm_fifo_max_dequeue (session->rx_fifo);
1426 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1429 return (e->event_type == FIFO_EVENT_APP_TX
1430 && e->fifo->client_session_index == sid);
1432 return (e->event_type == SESSION_IO_EVT_CT_RX);
1436 vppcom_session_write (uint32_t session_index, void *buf, size_t n)
1438 int rv, n_write, is_nonblocking;
1439 vcl_session_t *s = 0;
1440 svm_fifo_t *tx_fifo = 0;
1441 session_evt_type_t et;
1442 svm_msg_q_msg_t msg;
1448 VCL_SESSION_LOCK_AND_GET (session_index, &s);
1450 tx_fifo = s->tx_fifo;
1451 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1453 if (PREDICT_FALSE (s->is_vep))
1455 VCL_SESSION_UNLOCK ();
1456 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1457 "cannot write to an epoll session!",
1458 getpid (), s->vpp_handle, session_index);
1464 if (!(s->session_state & STATE_OPEN))
1466 session_state_t state = s->session_state;
1467 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1468 VCL_SESSION_UNLOCK ();
1469 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! "
1471 getpid (), s->vpp_handle, session_index,
1472 state, vppcom_session_state_str (state));
1476 VCL_SESSION_UNLOCK ();
1478 mq = vcl_session_is_ct (s) ? s->our_evt_q : vcm->app_event_queue;
1479 if (svm_fifo_is_full (tx_fifo))
1483 rv = VPPCOM_EWOULDBLOCK;
1488 svm_msg_q_lock (mq);
1489 if (!svm_fifo_is_full (tx_fifo))
1491 svm_msg_q_unlock (mq);
1494 while (svm_msg_q_is_empty (mq) && svm_msg_q_timedwait (mq, 10e-6))
1496 svm_msg_q_sub_w_lock (mq, &msg);
1497 e = svm_msg_q_msg_data (mq, &msg);
1498 svm_msg_q_unlock (mq);
1500 if (!vcl_is_tx_evt_for_session (e, session_index,
1503 vcl_handle_mq_ctrl_event (e);
1504 svm_msg_q_free_msg (mq, &msg);
1507 if (svm_fifo_is_full (tx_fifo))
1509 svm_msg_q_free_msg (mq, &msg);
1512 svm_msg_q_free_msg (mq, &msg);
1517 ASSERT (FIFO_EVENT_APP_TX + 1 == SESSION_IO_EVT_CT_TX);
1518 et = FIFO_EVENT_APP_TX + vcl_session_is_ct (s);
1520 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1521 s->vpp_evt_q, buf, n, et, SVM_Q_WAIT);
1523 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1526 ASSERT (n_write > 0);
1528 if (VPPCOM_DEBUG > 2)
1531 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
1532 "FIFO-FULL (%p)", getpid (), s->vpp_handle,
1533 session_index, tx_fifo);
1535 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
1536 "wrote %d bytes tx-fifo: (%p)", getpid (),
1537 s->vpp_handle, session_index, n_write, tx_fifo);
1545 static vcl_session_t *
1546 vcl_ct_session_get_from_fifo (svm_fifo_t * f, u8 type)
1549 s = vcl_session_get (f->client_session_index);
1553 if (type == 0 && s->rx_fifo == f)
1556 if (type == 1 && s->tx_fifo == f)
1559 s = vcl_session_get (f->master_session_index);
1562 if (type == 0 && s->rx_fifo == f)
1564 if (type == 1 && s->tx_fifo == f)
1571 vppcom_session_write_ready (vcl_session_t * session, u32 session_index)
1573 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1574 if (PREDICT_FALSE (session->is_vep))
1576 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1577 "cannot write to an epoll session!",
1578 getpid (), session->vpp_handle, session_index);
1579 return VPPCOM_EBADFD;
1582 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1584 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1585 "cannot write to a listen session!",
1586 getpid (), session->vpp_handle, session_index);
1587 return VPPCOM_EBADFD;
1590 if (PREDICT_FALSE (!(session->session_state & STATE_OPEN)))
1592 session_state_t state = session->session_state;
1595 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1596 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1597 "session is not open! state 0x%x (%s), "
1598 "returning %d (%s)", getpid (), session->vpp_handle,
1600 state, vppcom_session_state_str (state),
1601 rv, vppcom_retval_str (rv));
1605 VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d",
1606 getpid (), session->vpp_handle, session_index, session->tx_fifo,
1607 svm_fifo_max_enqueue (session->tx_fifo));
1609 return svm_fifo_max_enqueue (session->tx_fifo);
1613 vcl_mq_dequeue_batch (svm_msg_q_t * mq)
1615 svm_msg_q_msg_t *msg;
1619 n_msgs = svm_msg_q_size (mq);
1620 for (i = 0; i < n_msgs; i++)
1622 vec_add2 (vcm->mq_msg_vector, msg, 1);
1623 svm_msg_q_sub_w_lock (mq, msg);
1629 vcl_select_handle_mq (svm_msg_q_t * mq, unsigned long n_bits,
1630 unsigned long *read_map, unsigned long *write_map,
1631 unsigned long *except_map, double time_to_wait,
1634 session_disconnected_msg_t *disconnected_msg;
1635 session_connected_msg_t *connected_msg;
1636 session_accepted_msg_t *accepted_msg;
1637 vcl_session_msg_t *vcl_msg;
1638 vcl_session_t *session;
1639 svm_msg_q_msg_t *msg;
1644 svm_msg_q_lock (mq);
1645 if (svm_msg_q_is_empty (mq))
1649 svm_msg_q_unlock (mq);
1655 svm_msg_q_unlock (mq);
1658 else if (time_to_wait < 0)
1660 svm_msg_q_wait (mq);
1664 if (svm_msg_q_timedwait (mq, time_to_wait))
1666 svm_msg_q_unlock (mq);
1671 vcl_mq_dequeue_batch (mq);
1672 svm_msg_q_unlock (mq);
1674 for (i = 0; i < vec_len (vcm->mq_msg_vector); i++)
1676 msg = vec_elt_at_index (vcm->mq_msg_vector, i);
1677 e = svm_msg_q_msg_data (mq, msg);
1678 switch (e->event_type)
1680 case FIFO_EVENT_APP_RX:
1681 sid = e->fifo->client_session_index;
1682 session = vcl_session_get (sid);
1683 svm_fifo_unset_event (session->rx_fifo);
1684 if (svm_fifo_is_empty (session->rx_fifo))
1686 if (sid < n_bits && read_map)
1688 clib_bitmap_set_no_check (read_map, sid, 1);
1692 case FIFO_EVENT_APP_TX:
1693 sid = e->fifo->client_session_index;
1694 session = vcl_session_get (sid);
1695 if (!session || svm_fifo_is_full (session->tx_fifo))
1697 if (sid < n_bits && write_map)
1699 clib_bitmap_set_no_check (write_map, sid, 1);
1703 case SESSION_IO_EVT_CT_TX:
1704 session = vcl_ct_session_get_from_fifo (e->fifo, 0);
1705 sid = vcl_session_index (session);
1706 svm_fifo_unset_event (session->rx_fifo);
1707 if (svm_fifo_is_empty (session->rx_fifo))
1709 if (sid < n_bits && read_map)
1711 clib_bitmap_set_no_check (read_map, sid, 1);
1716 case SESSION_IO_EVT_CT_RX:
1717 session = vcl_ct_session_get_from_fifo (e->fifo, 1);
1718 sid = vcl_session_index (session);
1719 if (!session || svm_fifo_is_full (session->tx_fifo))
1721 if (sid < n_bits && write_map)
1723 clib_bitmap_set_no_check (write_map, sid, 1);
1727 case SESSION_CTRL_EVT_ACCEPTED:
1728 accepted_msg = (session_accepted_msg_t *) e->data;
1729 handle = accepted_msg->listener_handle;
1730 session = vppcom_session_table_lookup_listener (handle);
1733 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
1734 "listener handle %llx", getpid (), handle);
1738 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
1739 vcl_msg->accepted_msg = *accepted_msg;
1740 sid = session - vcm->sessions;
1741 if (sid < n_bits && read_map)
1743 clib_bitmap_set_no_check (read_map, sid, 1);
1747 case SESSION_CTRL_EVT_CONNECTED:
1748 connected_msg = (session_connected_msg_t *) e->data;
1749 vcl_session_connected_handler (connected_msg);
1751 case SESSION_CTRL_EVT_DISCONNECTED:
1752 disconnected_msg = (session_disconnected_msg_t *) e->data;
1753 sid = vcl_session_get_index_from_handle (disconnected_msg->handle);
1754 if (sid < n_bits && except_map)
1756 clib_bitmap_set_no_check (except_map, sid, 1);
1761 clib_warning ("unhandled: %u", e->event_type);
1764 svm_msg_q_free_msg (mq, msg);
1767 vec_reset_length (vcm->mq_msg_vector);
1772 vppcom_select_condvar (unsigned long n_bits, unsigned long *read_map,
1773 unsigned long *write_map, unsigned long *except_map,
1774 double time_to_wait, u32 * bits_set)
1776 double total_wait = 0, wait_slice;
1777 vcl_cut_through_registration_t *cr;
1779 time_to_wait = (time_to_wait == -1) ? 10e9 : time_to_wait;
1780 wait_slice = vcm->cut_through_registrations ? 10e-6 : time_to_wait;
1784 pool_foreach (cr, vcm->cut_through_registrations, ({
1785 vcl_select_handle_mq (cr->mq, n_bits, read_map, write_map, except_map,
1790 vcl_select_handle_mq (vcm->app_event_queue, n_bits, read_map, write_map,
1791 except_map, time_to_wait, bits_set);
1792 total_wait += wait_slice;
1796 while (total_wait < time_to_wait);
1802 vppcom_select_eventfd (unsigned long n_bits, unsigned long *read_map,
1803 unsigned long *write_map, unsigned long *except_map,
1804 double time_to_wait, u32 * bits_set)
1806 vcl_mq_evt_conn_t *mqc;
1807 int __clib_unused n_read;
1811 vec_validate (vcm->mq_events, pool_elts (vcm->mq_evt_conns));
1812 n_mq_evts = epoll_wait (vcm->mqs_epfd, vcm->mq_events,
1813 vec_len (vcm->mq_events), time_to_wait);
1814 for (i = 0; i < n_mq_evts; i++)
1816 mqc = vcl_mq_evt_conn_get (vcm->mq_events[i].data.u32);
1817 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1818 vcl_select_handle_mq (mqc->mq, n_bits, read_map, write_map,
1819 except_map, 0, bits_set);
1822 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1826 vppcom_select (unsigned long n_bits, unsigned long *read_map,
1827 unsigned long *write_map, unsigned long *except_map,
1828 double time_to_wait)
1830 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1831 vcl_session_t *session = 0;
1834 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
1836 if (n_bits && read_map)
1838 clib_bitmap_validate (vcm->rd_bitmap, minbits);
1839 clib_memcpy (vcm->rd_bitmap, read_map,
1840 vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t));
1841 memset (read_map, 0, vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t));
1843 if (n_bits && write_map)
1845 clib_bitmap_validate (vcm->wr_bitmap, minbits);
1846 clib_memcpy (vcm->wr_bitmap, write_map,
1847 vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t));
1848 memset (write_map, 0,
1849 vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t));
1851 if (n_bits && except_map)
1853 clib_bitmap_validate (vcm->ex_bitmap, minbits);
1854 clib_memcpy (vcm->ex_bitmap, except_map,
1855 vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t));
1856 memset (except_map, 0,
1857 vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t));
1867 clib_bitmap_foreach (sid, vcm->wr_bitmap, ({
1868 if (!(session = vcl_session_get (sid)))
1870 VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
1872 return VPPCOM_EBADFD;
1875 rv = svm_fifo_is_full (session->tx_fifo);
1878 clib_bitmap_set_no_check (write_map, sid, 1);
1887 clib_bitmap_foreach (sid, vcm->rd_bitmap, ({
1888 if (!(session = vcl_session_get (sid)))
1890 VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
1892 return VPPCOM_EBADFD;
1895 rv = vppcom_session_read_ready (session);
1898 clib_bitmap_set_no_check (read_map, sid, 1);
1906 if (vcm->cfg.use_mq_eventfd)
1907 vppcom_select_eventfd (n_bits, read_map, write_map, except_map,
1908 time_to_wait, &bits_set);
1910 vppcom_select_condvar (n_bits, read_map, write_map, except_map,
1911 time_to_wait, &bits_set);
1917 vep_verify_epoll_chain (u32 vep_idx)
1919 vcl_session_t *session;
1920 vppcom_epoll_t *vep;
1924 if (VPPCOM_DEBUG <= 1)
1927 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1928 rv = vppcom_session_at_index (vep_idx, &session);
1929 if (PREDICT_FALSE (rv))
1931 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
1932 getpid (), vep_idx);
1935 if (PREDICT_FALSE (!session->is_vep))
1937 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
1938 getpid (), vep_idx);
1941 vep = &session->vep;
1942 clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n"
1945 " is_vep_session = %u\n"
1946 " next_sid = 0x%x (%u)\n"
1947 " wait_cont_idx = 0x%x (%u)\n"
1948 "}\n", getpid (), vep_idx,
1949 session->is_vep, session->is_vep_session,
1950 vep->next_sid, vep->next_sid,
1951 session->wait_cont_idx, session->wait_cont_idx);
1953 for (sid = vep->next_sid; sid != ~0; sid = vep->next_sid)
1955 rv = vppcom_session_at_index (sid, &session);
1956 if (PREDICT_FALSE (rv))
1958 clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
1961 if (PREDICT_FALSE (session->is_vep))
1962 clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!",
1963 getpid (), vep_idx);
1964 else if (PREDICT_FALSE (!session->is_vep_session))
1966 clib_warning ("VCL<%d>: ERROR: session (%u) "
1967 "is not a vep session!", getpid (), sid);
1970 vep = &session->vep;
1971 if (PREDICT_FALSE (vep->vep_idx != vep_idx))
1972 clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
1973 "vep_idx (%u)!", getpid (),
1974 sid, session->vep.vep_idx, vep_idx);
1975 if (session->is_vep_session)
1977 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
1979 " next_sid = 0x%x (%u)\n"
1980 " prev_sid = 0x%x (%u)\n"
1981 " vep_idx = 0x%x (%u)\n"
1982 " ev.events = 0x%x\n"
1983 " ev.data.u64 = 0x%llx\n"
1987 vep->next_sid, vep->next_sid,
1988 vep->prev_sid, vep->prev_sid,
1989 vep->vep_idx, vep->vep_idx,
1990 vep->ev.events, vep->ev.data.u64, vep->et_mask);
1995 clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n",
1996 getpid (), vep_idx);
2000 vppcom_epoll_create (void)
2002 vcl_session_t *vep_session;
2005 VCL_SESSION_LOCK ();
2006 pool_get (vcm->sessions, vep_session);
2007 memset (vep_session, 0, sizeof (*vep_session));
2008 vep_idx = vep_session - vcm->sessions;
2010 vep_session->is_vep = 1;
2011 vep_session->vep.vep_idx = ~0;
2012 vep_session->vep.next_sid = ~0;
2013 vep_session->vep.prev_sid = ~0;
2014 vep_session->wait_cont_idx = ~0;
2015 vep_session->vpp_handle = ~0;
2016 vep_session->poll_reg = 0;
2018 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_idx);
2019 VCL_SESSION_UNLOCK ();
2021 VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!",
2022 getpid (), vep_idx, vep_idx);
2028 vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index,
2029 struct epoll_event *event)
2031 vcl_session_t *vep_session;
2032 vcl_session_t *session;
2035 if (vep_idx == session_index)
2037 clib_warning ("VCL<%d>: ERROR: vep_idx == session_index (%u)!",
2038 getpid (), vep_idx);
2039 return VPPCOM_EINVAL;
2042 VCL_SESSION_LOCK ();
2043 rv = vppcom_session_at_index (vep_idx, &vep_session);
2044 if (PREDICT_FALSE (rv))
2046 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_idx);
2049 if (PREDICT_FALSE (!vep_session->is_vep))
2051 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2052 getpid (), vep_idx);
2057 ASSERT (vep_session->vep.vep_idx == ~0);
2058 ASSERT (vep_session->vep.prev_sid == ~0);
2060 rv = vppcom_session_at_index (session_index, &session);
2061 if (PREDICT_FALSE (rv))
2063 VDBG (0, "VCL<%d>: ERROR: Invalid session_index (%u)!",
2064 getpid (), session_index);
2067 if (PREDICT_FALSE (session->is_vep))
2069 clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx);
2077 if (PREDICT_FALSE (!event))
2079 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: NULL pointer to "
2080 "epoll_event structure!", getpid ());
2084 if (vep_session->vep.next_sid != ~0)
2086 vcl_session_t *next_session;
2087 rv = vppcom_session_at_index (vep_session->vep.next_sid,
2089 if (PREDICT_FALSE (rv))
2091 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid "
2092 "vep.next_sid (%u) on vep_idx (%u)!",
2093 getpid (), vep_session->vep.next_sid, vep_idx);
2096 ASSERT (next_session->vep.prev_sid == vep_idx);
2097 next_session->vep.prev_sid = session_index;
2099 session->vep.next_sid = vep_session->vep.next_sid;
2100 session->vep.prev_sid = vep_idx;
2101 session->vep.vep_idx = vep_idx;
2102 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2103 session->vep.ev = *event;
2104 session->is_vep = 0;
2105 session->is_vep_session = 1;
2106 vep_session->vep.next_sid = session_index;
2108 /* VCL Event Register handler */
2109 if (session->session_state & STATE_LISTEN)
2111 /* Register handler for connect_request event on listen_session_index */
2112 vce_event_key_t evk;
2113 evk.session_index = session_index;
2114 evk.eid = VCL_EVENT_CONNECT_REQ_ACCEPTED;
2115 vep_session->poll_reg =
2116 vce_register_handler (&vcm->event_thread, &evk,
2117 vce_poll_wait_connect_request_handler_fn,
2118 0 /* No callback args */ );
2120 VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, "
2121 "sid %u, events 0x%x, data 0x%llx!",
2122 getpid (), vep_idx, session_index,
2123 event->events, event->data.u64);
2124 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2128 if (PREDICT_FALSE (!event))
2130 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_MOD: NULL pointer to "
2131 "epoll_event structure!", getpid ());
2135 else if (PREDICT_FALSE (!session->is_vep_session))
2137 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2138 "not a vep session!", getpid (), session_index);
2142 else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
2144 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2145 "vep_idx (%u) != vep_idx (%u)!",
2146 getpid (), session_index,
2147 session->vep.vep_idx, vep_idx);
2151 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2152 session->vep.ev = *event;
2153 VDBG (1, "VCL<%d>: EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
2154 " data 0x%llx!", getpid (), vep_idx, session_index, event->events,
2159 if (PREDICT_FALSE (!session->is_vep_session))
2161 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2162 "not a vep session!", getpid (), session_index);
2166 else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx))
2168 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2169 "vep_idx (%u) != vep_idx (%u)!",
2170 getpid (), session_index,
2171 session->vep.vep_idx, vep_idx);
2176 /* VCL Event Un-register handler */
2177 if ((session->session_state & STATE_LISTEN) && vep_session->poll_reg)
2179 (void) vce_unregister_handler (&vcm->event_thread,
2180 vep_session->poll_reg);
2183 vep_session->wait_cont_idx =
2184 (vep_session->wait_cont_idx == session_index) ?
2185 session->vep.next_sid : vep_session->wait_cont_idx;
2187 if (session->vep.prev_sid == vep_idx)
2188 vep_session->vep.next_sid = session->vep.next_sid;
2191 vcl_session_t *prev_session;
2192 rv = vppcom_session_at_index (session->vep.prev_sid, &prev_session);
2193 if (PREDICT_FALSE (rv))
2195 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2196 "vep.prev_sid (%u) on sid (%u)!",
2197 getpid (), session->vep.prev_sid, session_index);
2200 ASSERT (prev_session->vep.next_sid == session_index);
2201 prev_session->vep.next_sid = session->vep.next_sid;
2203 if (session->vep.next_sid != ~0)
2205 vcl_session_t *next_session;
2206 rv = vppcom_session_at_index (session->vep.next_sid, &next_session);
2207 if (PREDICT_FALSE (rv))
2209 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2210 "vep.next_sid (%u) on sid (%u)!",
2211 getpid (), session->vep.next_sid, session_index);
2214 ASSERT (next_session->vep.prev_sid == session_index);
2215 next_session->vep.prev_sid = session->vep.prev_sid;
2218 memset (&session->vep, 0, sizeof (session->vep));
2219 session->vep.next_sid = ~0;
2220 session->vep.prev_sid = ~0;
2221 session->vep.vep_idx = ~0;
2222 session->is_vep_session = 0;
2223 VDBG (1, "VCL<%d>: EPOLL_CTL_DEL: vep_idx %u, sid %u!",
2224 getpid (), vep_idx, session_index);
2225 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_idx);
2229 clib_warning ("VCL<%d>: ERROR: Invalid operation (%d)!", getpid (), op);
2233 vep_verify_epoll_chain (vep_idx);
2236 VCL_SESSION_UNLOCK ();
2241 vcl_epoll_wait_handle_mq (svm_msg_q_t * mq, struct epoll_event *events,
2242 u32 maxevents, double wait_for_time, u32 * num_ev)
2244 session_disconnected_msg_t *disconnected_msg;
2245 session_connected_msg_t *connected_msg;
2246 session_accepted_msg_t *accepted_msg;
2247 u64 session_evt_data = ~0, handle;
2248 u32 sid = ~0, session_events;
2249 vcl_session_msg_t *vcl_msg;
2250 vcl_session_t *session;
2251 svm_msg_q_msg_t *msg;
2256 svm_msg_q_lock (mq);
2257 if (svm_msg_q_is_empty (mq))
2261 svm_msg_q_unlock (mq);
2264 else if (wait_for_time < 0)
2266 svm_msg_q_wait (mq);
2270 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3) < 0)
2272 svm_msg_q_unlock (mq);
2277 vcl_mq_dequeue_batch (mq);
2278 svm_msg_q_unlock (mq);
2280 for (i = 0; i < vec_len (vcm->mq_msg_vector); i++)
2282 msg = vec_elt_at_index (vcm->mq_msg_vector, i);
2283 e = svm_msg_q_msg_data (mq, msg);
2285 switch (e->event_type)
2287 case FIFO_EVENT_APP_RX:
2288 sid = e->fifo->client_session_index;
2289 session = vcl_session_get (sid);
2290 session_events = session->vep.ev.events;
2291 if (!(EPOLLIN & session->vep.ev.events))
2293 svm_fifo_unset_event (session->rx_fifo);
2294 if (!svm_fifo_is_empty (session->rx_fifo))
2297 events[*num_ev].events |= EPOLLIN;
2298 session_evt_data = session->vep.ev.data.u64;
2301 case FIFO_EVENT_APP_TX:
2302 sid = e->fifo->client_session_index;
2303 session = vcl_session_get (sid);
2304 session_events = session->vep.ev.events;
2305 if (!(EPOLLOUT & session_events))
2307 if (!svm_fifo_is_full (session->tx_fifo))
2310 events[*num_ev].events |= EPOLLOUT;
2311 session_evt_data = session->vep.ev.data.u64;
2314 case SESSION_IO_EVT_CT_TX:
2315 session = vcl_ct_session_get_from_fifo (e->fifo, 0);
2316 sid = vcl_session_index (session);
2317 session_events = session->vep.ev.events;
2318 if (!(EPOLLIN & session->vep.ev.events))
2320 svm_fifo_unset_event (session->rx_fifo);
2321 if (!svm_fifo_is_empty (session->rx_fifo))
2324 events[*num_ev].events |= EPOLLIN;
2325 session_evt_data = session->vep.ev.data.u64;
2328 case SESSION_IO_EVT_CT_RX:
2329 session = vcl_ct_session_get_from_fifo (e->fifo, 1);
2330 sid = vcl_session_index (session);
2331 session_events = session->vep.ev.events;
2332 if (!(EPOLLOUT & session_events))
2334 if (!svm_fifo_is_full (session->tx_fifo))
2337 events[*num_ev].events |= EPOLLOUT;
2338 session_evt_data = session->vep.ev.data.u64;
2341 case SESSION_CTRL_EVT_ACCEPTED:
2342 accepted_msg = (session_accepted_msg_t *) e->data;
2343 handle = accepted_msg->listener_handle;
2344 session = vppcom_session_table_lookup_listener (handle);
2347 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
2348 "listener handle %llx", getpid (), handle);
2352 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
2353 vcl_msg->accepted_msg = *accepted_msg;
2354 session_events = session->vep.ev.events;
2355 if (!(EPOLLIN & session_events))
2359 events[*num_ev].events |= EPOLLIN;
2360 session_evt_data = session->vep.ev.data.u64;
2362 case SESSION_CTRL_EVT_CONNECTED:
2363 connected_msg = (session_connected_msg_t *) e->data;
2364 vcl_session_connected_handler (connected_msg);
2365 /* Generate EPOLLOUT because there's no connected event */
2366 sid = vcl_session_get_index_from_handle (connected_msg->handle);
2367 clib_spinlock_lock (&vcm->sessions_lockp);
2368 session = vcl_session_get (sid);
2369 session_events = session->vep.ev.events;
2370 if (EPOLLOUT & session_events)
2373 events[*num_ev].events |= EPOLLOUT;
2374 session_evt_data = session->vep.ev.data.u64;
2376 clib_spinlock_unlock (&vcm->sessions_lockp);
2378 case SESSION_CTRL_EVT_DISCONNECTED:
2379 disconnected_msg = (session_disconnected_msg_t *) e->data;
2380 sid = vcl_session_get_index_from_handle (disconnected_msg->handle);
2381 clib_spinlock_lock (&vcm->sessions_lockp);
2382 session = vcl_session_get (sid);
2384 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2385 session_evt_data = session->vep.ev.data.u64;
2386 session_events = session->vep.ev.events;
2387 clib_spinlock_unlock (&vcm->sessions_lockp);
2390 clib_warning ("unhandled: %u", e->event_type);
2391 svm_msg_q_free_msg (mq, msg);
2394 svm_msg_q_free_msg (mq, msg);
2398 events[*num_ev].data.u64 = session_evt_data;
2399 if (EPOLLONESHOT & session_events)
2401 clib_spinlock_lock (&vcm->sessions_lockp);
2402 session = vcl_session_get (sid);
2403 session->vep.ev.events = 0;
2404 clib_spinlock_unlock (&vcm->sessions_lockp);
2407 if (*num_ev == maxevents)
2412 vec_reset_length (vcm->mq_msg_vector);
2417 vppcom_epoll_wait_condvar (struct epoll_event *events, int maxevents,
2418 double wait_for_time)
2420 vcl_cut_through_registration_t *cr;
2421 double total_wait = 0, wait_slice;
2425 wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time;
2426 wait_slice = vcm->cut_through_registrations ? 10e-6 : wait_for_time;
2431 pool_foreach (cr, vcm->cut_through_registrations, ({
2432 vcl_epoll_wait_handle_mq (cr->mq, events, maxevents, 0, &num_ev);
2436 rv = vcl_epoll_wait_handle_mq (vcm->app_event_queue, events, maxevents,
2437 num_ev ? 0 : wait_slice, &num_ev);
2439 total_wait += wait_slice;
2443 while (total_wait < wait_for_time);
2444 return (int) num_ev;
2448 vppcom_epoll_wait_eventfd (struct epoll_event *events, int maxevents,
2449 double wait_for_time)
2451 vcl_mq_evt_conn_t *mqc;
2452 int __clib_unused n_read;
2457 vec_validate (vcm->mq_events, pool_elts (vcm->mq_evt_conns));
2458 n_mq_evts = epoll_wait (vcm->mqs_epfd, vcm->mq_events,
2459 vec_len (vcm->mq_events), wait_for_time);
2460 for (i = 0; i < n_mq_evts; i++)
2462 mqc = vcl_mq_evt_conn_get (vcm->mq_events[i].data.u32);
2463 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2464 vcl_epoll_wait_handle_mq (mqc->mq, events, maxevents, 0, &n_evts);
2467 return (int) n_evts;
2471 vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events,
2472 int maxevents, double wait_for_time)
2474 vcl_session_t *vep_session;
2476 if (PREDICT_FALSE (maxevents <= 0))
2478 clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
2479 getpid (), maxevents);
2480 return VPPCOM_EINVAL;
2483 clib_spinlock_lock (&vcm->sessions_lockp);
2484 vep_session = vcl_session_get (vep_idx);
2485 if (PREDICT_FALSE (!vep_session->is_vep))
2487 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2488 getpid (), vep_idx);
2489 clib_spinlock_unlock (&vcm->sessions_lockp);
2490 return VPPCOM_EINVAL;
2492 clib_spinlock_unlock (&vcm->sessions_lockp);
2494 memset (events, 0, sizeof (*events) * maxevents);
2496 if (vcm->cfg.use_mq_eventfd)
2497 return vppcom_epoll_wait_eventfd (events, maxevents, wait_for_time);
2499 return vppcom_epoll_wait_condvar (events, maxevents, wait_for_time);
2503 vppcom_session_attr (uint32_t session_index, uint32_t op,
2504 void *buffer, uint32_t * buflen)
2506 vcl_session_t *session;
2508 u32 *flags = buffer;
2509 vppcom_endpt_t *ep = buffer;
2511 VCL_SESSION_LOCK_AND_GET (session_index, &session);
2517 case VPPCOM_ATTR_GET_NREAD:
2518 rv = vppcom_session_read_ready (session);
2519 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d",
2523 case VPPCOM_ATTR_GET_NWRITE:
2524 rv = vppcom_session_write_ready (session, session_index);
2525 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
2526 getpid (), session_index, rv);
2529 case VPPCOM_ATTR_GET_FLAGS:
2530 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2532 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2533 VCL_SESS_ATTR_NONBLOCK));
2534 *buflen = sizeof (*flags);
2535 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
2536 "is_nonblocking = %u", getpid (),
2537 session_index, *flags,
2538 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2544 case VPPCOM_ATTR_SET_FLAGS:
2545 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2547 if (*flags & O_NONBLOCK)
2548 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2550 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2552 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
2553 " is_nonblocking = %u",
2554 getpid (), session_index, *flags,
2555 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2561 case VPPCOM_ATTR_GET_PEER_ADDR:
2562 if (PREDICT_TRUE (buffer && buflen &&
2563 (*buflen >= sizeof (*ep)) && ep->ip))
2565 ep->is_ip4 = session->transport.is_ip4;
2566 ep->port = session->transport.rmt_port;
2567 if (session->transport.is_ip4)
2568 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
2569 sizeof (ip4_address_t));
2571 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
2572 sizeof (ip6_address_t));
2573 *buflen = sizeof (*ep);
2574 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
2575 "addr = %U, port %u", getpid (),
2576 session_index, ep->is_ip4, format_ip46_address,
2577 &session->transport.rmt_ip,
2578 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2579 clib_net_to_host_u16 (ep->port));
2585 case VPPCOM_ATTR_GET_LCL_ADDR:
2586 if (PREDICT_TRUE (buffer && buflen &&
2587 (*buflen >= sizeof (*ep)) && ep->ip))
2589 ep->is_ip4 = session->transport.is_ip4;
2590 ep->port = session->transport.lcl_port;
2591 if (session->transport.is_ip4)
2592 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip4,
2593 sizeof (ip4_address_t));
2595 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip6,
2596 sizeof (ip6_address_t));
2597 *buflen = sizeof (*ep);
2598 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
2599 " addr = %U port %d", getpid (),
2600 session_index, ep->is_ip4, format_ip46_address,
2601 &session->transport.lcl_ip,
2602 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2603 clib_net_to_host_u16 (ep->port));
2609 case VPPCOM_ATTR_GET_LIBC_EPFD:
2610 rv = session->libc_epfd;
2611 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
2615 case VPPCOM_ATTR_SET_LIBC_EPFD:
2616 if (PREDICT_TRUE (buffer && buflen &&
2617 (*buflen == sizeof (session->libc_epfd))))
2619 session->libc_epfd = *(int *) buffer;
2620 *buflen = sizeof (session->libc_epfd);
2622 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, "
2623 "buflen %d", getpid (), session->libc_epfd, *buflen);
2629 case VPPCOM_ATTR_GET_PROTOCOL:
2630 if (buffer && buflen && (*buflen >= sizeof (int)))
2632 *(int *) buffer = session->session_type;
2633 *buflen = sizeof (int);
2635 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2636 getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP",
2643 case VPPCOM_ATTR_GET_LISTEN:
2644 if (buffer && buflen && (*buflen >= sizeof (int)))
2646 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2647 VCL_SESS_ATTR_LISTEN);
2648 *buflen = sizeof (int);
2650 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d",
2651 getpid (), *(int *) buffer, *buflen);
2657 case VPPCOM_ATTR_GET_ERROR:
2658 if (buffer && buflen && (*buflen >= sizeof (int)))
2660 *(int *) buffer = 0;
2661 *buflen = sizeof (int);
2663 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2664 getpid (), *(int *) buffer, *buflen);
2670 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2671 if (buffer && buflen && (*buflen >= sizeof (u32)))
2675 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2676 session->tx_fifo ? session->tx_fifo->nitems :
2677 vcm->cfg.tx_fifo_size);
2678 *buflen = sizeof (u32);
2680 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
2681 "buflen %d, #VPP-TBD#", getpid (),
2682 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2688 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2689 if (buffer && buflen && (*buflen == sizeof (u32)))
2692 session->sndbuf_size = *(u32 *) buffer;
2693 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), "
2694 "buflen %d, #VPP-TBD#", getpid (),
2695 session->sndbuf_size, session->sndbuf_size, *buflen);
2701 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2702 if (buffer && buflen && (*buflen >= sizeof (u32)))
2706 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2707 session->rx_fifo ? session->rx_fifo->nitems :
2708 vcm->cfg.rx_fifo_size);
2709 *buflen = sizeof (u32);
2711 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
2712 "buflen %d, #VPP-TBD#", getpid (),
2713 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2719 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2720 if (buffer && buflen && (*buflen == sizeof (u32)))
2723 session->rcvbuf_size = *(u32 *) buffer;
2724 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), "
2725 "buflen %d, #VPP-TBD#", getpid (),
2726 session->sndbuf_size, session->sndbuf_size, *buflen);
2732 case VPPCOM_ATTR_GET_REUSEADDR:
2733 if (buffer && buflen && (*buflen >= sizeof (int)))
2736 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2737 VCL_SESS_ATTR_REUSEADDR);
2738 *buflen = sizeof (int);
2740 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
2741 "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2747 case VPPCOM_ATTR_SET_REUSEADDR:
2748 if (buffer && buflen && (*buflen == sizeof (int)) &&
2749 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2752 if (*(int *) buffer)
2753 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2755 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2757 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d,"
2758 " #VPP-TBD#", getpid (),
2759 VCL_SESS_ATTR_TEST (session->attr,
2760 VCL_SESS_ATTR_REUSEADDR), *buflen);
2766 case VPPCOM_ATTR_GET_REUSEPORT:
2767 if (buffer && buflen && (*buflen >= sizeof (int)))
2770 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2771 VCL_SESS_ATTR_REUSEPORT);
2772 *buflen = sizeof (int);
2774 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d,"
2775 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2781 case VPPCOM_ATTR_SET_REUSEPORT:
2782 if (buffer && buflen && (*buflen == sizeof (int)) &&
2783 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2786 if (*(int *) buffer)
2787 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2789 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2791 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d,"
2792 " #VPP-TBD#", getpid (),
2793 VCL_SESS_ATTR_TEST (session->attr,
2794 VCL_SESS_ATTR_REUSEPORT), *buflen);
2800 case VPPCOM_ATTR_GET_BROADCAST:
2801 if (buffer && buflen && (*buflen >= sizeof (int)))
2804 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2805 VCL_SESS_ATTR_BROADCAST);
2806 *buflen = sizeof (int);
2808 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d,"
2809 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2815 case VPPCOM_ATTR_SET_BROADCAST:
2816 if (buffer && buflen && (*buflen == sizeof (int)))
2819 if (*(int *) buffer)
2820 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2822 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2824 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, "
2825 "#VPP-TBD#", getpid (),
2826 VCL_SESS_ATTR_TEST (session->attr,
2827 VCL_SESS_ATTR_BROADCAST), *buflen);
2833 case VPPCOM_ATTR_GET_V6ONLY:
2834 if (buffer && buflen && (*buflen >= sizeof (int)))
2837 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2838 VCL_SESS_ATTR_V6ONLY);
2839 *buflen = sizeof (int);
2841 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, "
2842 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2848 case VPPCOM_ATTR_SET_V6ONLY:
2849 if (buffer && buflen && (*buflen == sizeof (int)))
2852 if (*(int *) buffer)
2853 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2855 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2857 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, "
2858 "#VPP-TBD#", getpid (),
2859 VCL_SESS_ATTR_TEST (session->attr,
2860 VCL_SESS_ATTR_V6ONLY), *buflen);
2866 case VPPCOM_ATTR_GET_KEEPALIVE:
2867 if (buffer && buflen && (*buflen >= sizeof (int)))
2870 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2871 VCL_SESS_ATTR_KEEPALIVE);
2872 *buflen = sizeof (int);
2874 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, "
2875 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2881 case VPPCOM_ATTR_SET_KEEPALIVE:
2882 if (buffer && buflen && (*buflen == sizeof (int)))
2885 if (*(int *) buffer)
2886 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2888 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2890 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, "
2891 "#VPP-TBD#", getpid (),
2892 VCL_SESS_ATTR_TEST (session->attr,
2893 VCL_SESS_ATTR_KEEPALIVE), *buflen);
2899 case VPPCOM_ATTR_GET_TCP_NODELAY:
2900 if (buffer && buflen && (*buflen >= sizeof (int)))
2903 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2904 VCL_SESS_ATTR_TCP_NODELAY);
2905 *buflen = sizeof (int);
2907 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, "
2908 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2914 case VPPCOM_ATTR_SET_TCP_NODELAY:
2915 if (buffer && buflen && (*buflen == sizeof (int)))
2918 if (*(int *) buffer)
2919 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
2921 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
2923 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, "
2924 "#VPP-TBD#", getpid (),
2925 VCL_SESS_ATTR_TEST (session->attr,
2926 VCL_SESS_ATTR_TCP_NODELAY), *buflen);
2932 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
2933 if (buffer && buflen && (*buflen >= sizeof (int)))
2936 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2937 VCL_SESS_ATTR_TCP_KEEPIDLE);
2938 *buflen = sizeof (int);
2940 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, "
2941 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2947 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
2948 if (buffer && buflen && (*buflen == sizeof (int)))
2951 if (*(int *) buffer)
2952 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
2954 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
2956 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, "
2957 "#VPP-TBD#", getpid (),
2958 VCL_SESS_ATTR_TEST (session->attr,
2959 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
2965 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
2966 if (buffer && buflen && (*buflen >= sizeof (int)))
2969 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2970 VCL_SESS_ATTR_TCP_KEEPINTVL);
2971 *buflen = sizeof (int);
2973 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, "
2974 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2980 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
2981 if (buffer && buflen && (*buflen == sizeof (int)))
2984 if (*(int *) buffer)
2985 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
2987 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
2989 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, "
2990 "#VPP-TBD#", getpid (),
2991 VCL_SESS_ATTR_TEST (session->attr,
2992 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
2998 case VPPCOM_ATTR_GET_TCP_USER_MSS:
2999 if (buffer && buflen && (*buflen >= sizeof (u32)))
3002 *(u32 *) buffer = session->user_mss;
3003 *buflen = sizeof (int);
3005 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d,"
3006 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3012 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3013 if (buffer && buflen && (*buflen == sizeof (u32)))
3016 session->user_mss = *(u32 *) buffer;
3018 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, "
3019 "#VPP-TBD#", getpid (), session->user_mss, *buflen);
3031 VCL_SESSION_UNLOCK ();
3036 vppcom_session_recvfrom (uint32_t session_index, void *buffer,
3037 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3040 vcl_session_t *session = 0;
3044 VCL_SESSION_LOCK ();
3045 rv = vppcom_session_at_index (session_index, &session);
3046 if (PREDICT_FALSE (rv))
3048 VCL_SESSION_UNLOCK ();
3049 VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
3050 getpid (), session_index);
3051 VCL_SESSION_UNLOCK ();
3052 return VPPCOM_EBADFD;
3054 ep->is_ip4 = session->transport.is_ip4;
3055 ep->port = session->transport.rmt_port;
3056 VCL_SESSION_UNLOCK ();
3060 rv = vppcom_session_read (session_index, buffer, buflen);
3061 else if (flags & MSG_PEEK)
3062 rv = vppcom_session_peek (session_index, buffer, buflen);
3065 clib_warning ("VCL<%d>: Unsupport flags for recvfrom %d",
3067 return VPPCOM_EAFNOSUPPORT;
3072 if (session->transport.is_ip4)
3073 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
3074 sizeof (ip4_address_t));
3076 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
3077 sizeof (ip6_address_t));
3084 vppcom_session_sendto (uint32_t session_index, void *buffer,
3085 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3088 return VPPCOM_EINVAL;
3093 return VPPCOM_EINVAL;
3098 // TBD check the flags and do the right thing
3099 VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.",
3100 getpid (), flags, flags);
3103 return (vppcom_session_write (session_index, buffer, buflen));
3107 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3109 f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time;
3110 u32 i, keep_trying = 1;
3113 VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
3114 getpid (), vp, n_sids, wait_for_time);
3117 return VPPCOM_EFAULT;
3121 vcl_session_t *session;
3123 for (i = 0; i < n_sids; i++)
3125 ASSERT (vp[i].revents);
3127 VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session);
3128 VCL_SESSION_UNLOCK ();
3133 if (POLLIN & vp[i].events)
3135 VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session);
3136 rv = vppcom_session_read_ready (session);
3137 VCL_SESSION_UNLOCK ();
3140 *vp[i].revents |= POLLIN;
3147 case VPPCOM_ECONNRESET:
3148 *vp[i].revents = POLLHUP;
3152 *vp[i].revents = POLLERR;
3159 if (POLLOUT & vp[i].events)
3161 VCL_SESSION_LOCK_AND_GET (vp[i].sid, &session);
3162 rv = vppcom_session_write_ready (session, vp[i].sid);
3163 VCL_SESSION_UNLOCK ();
3166 *vp[i].revents |= POLLOUT;
3173 case VPPCOM_ECONNRESET:
3174 *vp[i].revents = POLLHUP;
3178 *vp[i].revents = POLLERR;
3185 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3188 *vp[i].revents = POLLNVAL;
3192 if (wait_for_time != -1)
3193 keep_trying = (clib_time_now (&vcm->clib_time) <= timeout) ? 1 : 0;
3195 while ((num_ev == 0) && keep_trying);
3197 if (VPPCOM_DEBUG > 3)
3199 clib_warning ("VCL<%d>: returning %d", getpid (), num_ev);
3200 for (i = 0; i < n_sids; i++)
3202 clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
3203 ".revents 0x%x", getpid (), i, vp[i].sid, vp[i].sid,
3204 vp[i].events, *vp[i].revents);
3211 vppcom_mq_epoll_fd (void)
3213 return vcm->mqs_epfd;
3217 * fd.io coding-style-patch-verification: ON
3220 * eval: (c-set-style "gnu")