2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <svm/svm_fifo_segment.h>
19 #include <vcl/vppcom.h>
20 #include <vcl/vcl_debug.h>
21 #include <vcl/vcl_private.h>
23 __thread uword __vcl_worker_index = ~0;
27 vcl_wait_for_segment (u64 segment_handle)
29 vcl_worker_t *wrk = vcl_worker_get_current ();
30 u32 wait_for_seconds = 10, segment_index;
33 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
36 timeout = clib_time_now (&wrk->clib_time) + wait_for_seconds;
37 while (clib_time_now (&wrk->clib_time) < timeout)
39 segment_index = vcl_segment_table_lookup (segment_handle);
40 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
48 vppcom_session_state_str (session_state_t state)
70 case STATE_CLOSE_ON_EMPTY:
71 st = "STATE_CLOSE_ON_EMPTY";
74 case STATE_DISCONNECT:
75 st = "STATE_DISCONNECT";
91 format_ip4_address (u8 * s, va_list * args)
93 u8 *a = va_arg (*args, u8 *);
94 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
98 format_ip6_address (u8 * s, va_list * args)
100 ip6_address_t *a = va_arg (*args, ip6_address_t *);
101 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
103 i_max_n_zero = ARRAY_LEN (a->as_u16);
105 i_first_zero = i_max_n_zero;
107 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
109 u32 is_zero = a->as_u16[i] == 0;
110 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
116 if ((!is_zero && n_zeros > max_n_zeros)
117 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
119 i_max_n_zero = i_first_zero;
120 max_n_zeros = n_zeros;
121 i_first_zero = ARRAY_LEN (a->as_u16);
126 last_double_colon = 0;
127 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
129 if (i == i_max_n_zero && max_n_zeros > 1)
131 s = format (s, "::");
132 i += max_n_zeros - 1;
133 last_double_colon = 1;
137 s = format (s, "%s%x",
138 (last_double_colon || i == 0) ? "" : ":",
139 clib_net_to_host_u16 (a->as_u16[i]));
140 last_double_colon = 0;
147 /* Format an IP46 address. */
149 format_ip46_address (u8 * s, va_list * args)
151 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
152 ip46_type_t type = va_arg (*args, ip46_type_t);
158 is_ip4 = ip46_address_is_ip4 (ip46);
169 format (s, "%U", format_ip4_address, &ip46->ip4) :
170 format (s, "%U", format_ip6_address, &ip46->ip6);
174 * VPPCOM Utility Functions
179 vcl_session_vpp_evt_q (vcl_worker_t * wrk, vcl_session_t * s)
181 if (vcl_session_is_ct (s))
182 return wrk->vpp_event_queues[0];
184 return wrk->vpp_event_queues[s->tx_fifo->master_thread_index];
188 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
189 session_handle_t handle, int retval)
191 app_session_evt_t _app_evt, *app_evt = &_app_evt;
192 session_accepted_reply_msg_t *rmp;
193 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
194 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
195 rmp->handle = handle;
196 rmp->context = context;
197 rmp->retval = retval;
198 app_send_ctrl_evt_to_vpp (mq, app_evt);
202 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
203 session_handle_t handle, int retval)
205 app_session_evt_t _app_evt, *app_evt = &_app_evt;
206 session_disconnected_reply_msg_t *rmp;
207 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
208 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
209 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
210 rmp->handle = handle;
211 rmp->context = context;
212 rmp->retval = retval;
213 app_send_ctrl_evt_to_vpp (mq, app_evt);
217 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
218 session_handle_t handle, int retval)
220 app_session_evt_t _app_evt, *app_evt = &_app_evt;
221 session_reset_reply_msg_t *rmp;
222 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
223 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
224 rmp->handle = handle;
225 rmp->context = context;
226 rmp->retval = retval;
227 app_send_ctrl_evt_to_vpp (mq, app_evt);
231 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp)
233 vcl_session_t *session, *listen_session;
234 svm_fifo_t *rx_fifo, *tx_fifo;
238 session = vcl_session_alloc (wrk);
240 listen_session = vcl_session_table_lookup_listener (wrk,
241 mp->listener_handle);
245 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
246 clib_warning ("VCL<%d>: ERROR: couldn't find listen session: "
247 "unknown vpp listener handle %llx",
248 getpid (), mp->listener_handle);
249 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
250 VNET_API_ERROR_INVALID_ARGUMENT);
251 vcl_session_free (wrk, session);
252 return VCL_INVALID_SESSION_INDEX;
255 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
256 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
258 if (mp->server_event_queue_address)
260 session->vpp_evt_q = uword_to_pointer (mp->client_event_queue_address,
262 session->our_evt_q = uword_to_pointer (mp->server_event_queue_address,
264 if (vcl_wait_for_segment (mp->segment_handle))
266 clib_warning ("segment for session %u couldn't be mounted!",
267 session->session_index);
268 return VCL_INVALID_SESSION_INDEX;
270 rx_fifo->master_session_index = session->session_index;
271 tx_fifo->master_session_index = session->session_index;
272 rx_fifo->master_thread_index = vcl_get_worker_index ();
273 tx_fifo->master_thread_index = vcl_get_worker_index ();
274 vec_validate (wrk->vpp_event_queues, 0);
275 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
276 wrk->vpp_event_queues[0] = evt_q;
280 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
282 rx_fifo->client_session_index = session->session_index;
283 tx_fifo->client_session_index = session->session_index;
284 rx_fifo->client_thread_index = vcl_get_worker_index ();
285 tx_fifo->client_thread_index = vcl_get_worker_index ();
286 vpp_wrk_index = tx_fifo->master_thread_index;
287 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
288 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
291 session->vpp_handle = mp->handle;
292 session->client_context = mp->context;
293 session->rx_fifo = rx_fifo;
294 session->tx_fifo = tx_fifo;
296 session->session_state = STATE_ACCEPT;
297 session->transport.rmt_port = mp->port;
298 session->transport.is_ip4 = mp->is_ip4;
299 clib_memcpy_fast (&session->transport.rmt_ip, mp->ip,
300 sizeof (ip46_address_t));
302 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
303 session->transport.lcl_port = listen_session->transport.lcl_port;
304 session->transport.lcl_ip = listen_session->transport.lcl_ip;
305 session->session_type = listen_session->session_type;
306 session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
308 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s"
309 " address %U port %d queue %p!", getpid (), mp->handle,
310 session->session_index,
311 mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip,
312 mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
313 clib_net_to_host_u16 (mp->port), session->vpp_evt_q);
314 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
316 return session->session_index;
320 vcl_session_connected_handler (vcl_worker_t * wrk,
321 session_connected_msg_t * mp)
323 u32 session_index, vpp_wrk_index;
324 svm_fifo_t *rx_fifo, *tx_fifo;
325 vcl_session_t *session = 0;
328 session_index = mp->context;
329 session = vcl_session_get (wrk, session_index);
332 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
333 "Invalid session index (%u)!",
334 getpid (), mp->handle, session_index);
335 return VCL_INVALID_SESSION_INDEX;
339 clib_warning ("VCL<%d>: ERROR: sid %u: connect failed! %U", getpid (),
340 session_index, format_api_error, ntohl (mp->retval));
341 session->session_state = STATE_FAILED;
342 session->vpp_handle = mp->handle;
343 return session_index;
346 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
347 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
348 if (vcl_wait_for_segment (mp->segment_handle))
350 clib_warning ("segment for session %u couldn't be mounted!",
351 session->session_index);
352 return VCL_INVALID_SESSION_INDEX;
355 rx_fifo->client_session_index = session_index;
356 tx_fifo->client_session_index = session_index;
357 rx_fifo->client_thread_index = vcl_get_worker_index ();
358 tx_fifo->client_thread_index = vcl_get_worker_index ();
360 if (mp->client_event_queue_address)
362 session->vpp_evt_q = uword_to_pointer (mp->server_event_queue_address,
364 session->our_evt_q = uword_to_pointer (mp->client_event_queue_address,
367 vec_validate (wrk->vpp_event_queues, 0);
368 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
369 wrk->vpp_event_queues[0] = evt_q;
373 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
375 vpp_wrk_index = tx_fifo->master_thread_index;
376 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
377 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
380 session->rx_fifo = rx_fifo;
381 session->tx_fifo = tx_fifo;
382 session->vpp_handle = mp->handle;
383 session->transport.is_ip4 = mp->is_ip4;
384 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
385 sizeof (session->transport.lcl_ip));
386 session->transport.lcl_port = mp->lcl_port;
387 session->session_state = STATE_CONNECT;
389 /* Add it to lookup table */
390 hash_set (wrk->session_index_by_vpp_handles, mp->handle, session_index);
392 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! "
393 "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d",
394 getpid (), mp->handle, session_index, session->rx_fifo,
395 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
397 return session_index;
401 vcl_session_reset_handler (vcl_worker_t * wrk,
402 session_reset_msg_t * reset_msg)
404 vcl_session_t *session;
407 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
408 session = vcl_session_get (wrk, sid);
411 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
412 return VCL_INVALID_SESSION_INDEX;
414 session->session_state = STATE_CLOSE_ON_EMPTY;
415 VDBG (0, "reset handle 0x%llx, sid %u ", reset_msg->handle, sid);
416 vcl_send_session_reset_reply (vcl_session_vpp_evt_q (wrk, session),
417 wrk->my_client_index, reset_msg->handle, 0);
422 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
424 vcl_session_t *session;
425 u32 sid = mp->context;
427 session = vcl_session_get (wrk, sid);
430 VERR ("vpp handle 0x%llx, sid %u: bind failed: %U", mp->handle, sid,
431 format_api_error, mp->retval);
434 session->session_state = STATE_FAILED;
435 session->vpp_handle = mp->handle;
440 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
441 "Invalid session index (%u)!",
442 getpid (), mp->handle, sid);
443 return VCL_INVALID_SESSION_INDEX;
447 session->vpp_handle = mp->handle;
448 session->transport.is_ip4 = mp->lcl_is_ip4;
449 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
450 sizeof (ip46_address_t));
451 session->transport.lcl_port = mp->lcl_port;
452 vcl_session_table_add_listener (wrk, mp->handle, sid);
453 session->session_state = STATE_LISTEN;
455 if (session->is_dgram)
457 svm_fifo_t *rx_fifo, *tx_fifo;
458 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
459 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
460 rx_fifo->client_session_index = sid;
461 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
462 tx_fifo->client_session_index = sid;
463 session->rx_fifo = rx_fifo;
464 session->tx_fifo = tx_fifo;
467 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: bind succeeded!",
468 getpid (), mp->handle, sid);
473 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
475 session_accepted_msg_t *accepted_msg;
476 session_disconnected_msg_t *disconnected_msg;
477 vcl_session_msg_t *vcl_msg;
478 vcl_session_t *session;
482 switch (e->event_type)
484 case FIFO_EVENT_APP_RX:
485 case FIFO_EVENT_APP_TX:
486 case SESSION_IO_EVT_CT_RX:
487 case SESSION_IO_EVT_CT_TX:
488 vec_add1 (wrk->unhandled_evts_vector, *e);
490 case SESSION_CTRL_EVT_ACCEPTED:
491 accepted_msg = (session_accepted_msg_t *) e->data;
492 handle = accepted_msg->listener_handle;
493 session = vcl_session_table_lookup_listener (wrk, handle);
496 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
497 "listener handle %llx", getpid (), handle);
501 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
502 vcl_msg->accepted_msg = *accepted_msg;
504 case SESSION_CTRL_EVT_CONNECTED:
505 vcl_session_connected_handler (wrk,
506 (session_connected_msg_t *) e->data);
508 case SESSION_CTRL_EVT_DISCONNECTED:
509 disconnected_msg = (session_disconnected_msg_t *) e->data;
510 sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
511 session = vcl_session_get (wrk, sid);
514 VDBG (0, "request to disconnect unknown handle 0x%llx",
515 disconnected_msg->handle);
518 session->session_state = STATE_DISCONNECT;
519 VDBG (0, "disconnected handle 0x%llx, sid %u", disconnected_msg->handle,
522 case SESSION_CTRL_EVT_RESET:
523 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
525 case SESSION_CTRL_EVT_BOUND:
526 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
529 clib_warning ("unhandled %u", e->event_type);
535 vppcom_wait_for_session_state_change (u32 session_index,
536 session_state_t state,
539 vcl_worker_t *wrk = vcl_worker_get_current ();
540 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
541 vcl_session_t *volatile session;
547 session = vcl_session_get (wrk, session_index);
548 if (PREDICT_FALSE (!session))
550 return VPPCOM_EBADFD;
552 if (session->session_state & state)
556 if (session->session_state & STATE_FAILED)
558 return VPPCOM_ECONNREFUSED;
561 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
563 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
564 vcl_handle_mq_event (wrk, e);
565 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
567 while (clib_time_now (&wrk->clib_time) < timeout);
569 VDBG (0, "VCL<%d>: timeout waiting for state 0x%x (%s)", getpid (), state,
570 vppcom_session_state_str (state));
571 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
573 return VPPCOM_ETIMEDOUT;
577 vppcom_app_session_enable (void)
581 if (vcm->app_state != STATE_APP_ENABLED)
583 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
584 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
585 if (PREDICT_FALSE (rv))
587 VDBG (0, "VCL<%d>: application session enable timed out! "
588 "returning %d (%s)", getpid (), rv, vppcom_retval_str (rv));
596 vppcom_app_attach (void)
600 vppcom_app_send_attach ();
601 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
602 if (PREDICT_FALSE (rv))
604 VDBG (0, "VCL<%d>: application attach timed out! returning %d (%s)",
605 getpid (), rv, vppcom_retval_str (rv));
613 vppcom_session_unbind (u32 session_handle)
615 vcl_worker_t *wrk = vcl_worker_get_current ();
616 vcl_session_t *session = 0;
619 session = vcl_session_get_w_handle (wrk, session_handle);
621 return VPPCOM_EBADFD;
623 vpp_handle = session->vpp_handle;
624 vcl_session_table_del_listener (wrk, vpp_handle);
625 session->vpp_handle = ~0;
626 session->session_state = STATE_DISCONNECT;
628 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending unbind msg! new state"
629 " 0x%x (%s)", getpid (), vpp_handle, session_handle, STATE_DISCONNECT,
630 vppcom_session_state_str (STATE_DISCONNECT));
631 vcl_evt (VCL_EVT_UNBIND, session);
632 vppcom_send_unbind_sock (vpp_handle);
638 vppcom_session_disconnect (u32 session_handle)
640 vcl_worker_t *wrk = vcl_worker_get_current ();
641 svm_msg_q_t *vpp_evt_q;
642 vcl_session_t *session;
643 session_state_t state;
646 session = vcl_session_get_w_handle (wrk, session_handle);
648 return VPPCOM_EBADFD;
650 vpp_handle = session->vpp_handle;
651 state = session->session_state;
653 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (),
654 vpp_handle, session_handle, state, vppcom_session_state_str (state));
656 if (PREDICT_FALSE (state & STATE_LISTEN))
658 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
659 "Cannot disconnect a listen socket!",
660 getpid (), vpp_handle, session_handle);
661 return VPPCOM_EBADFD;
664 if (state & STATE_CLOSE_ON_EMPTY)
666 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
667 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
669 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect "
670 "REPLY...", getpid (), vpp_handle, session_handle);
674 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...",
675 getpid (), vpp_handle, session_handle);
676 vppcom_send_disconnect_session (vpp_handle);
683 vcl_cleanup_bapi (void)
685 socket_client_main_t *scm = &socket_client_main;
686 api_main_t *am = &api_main;
688 am->my_client_index = ~0;
689 am->my_registration = 0;
690 am->vl_input_queue = 0;
691 am->msg_index_by_name_and_crc = 0;
694 vl_client_api_unmap ();
698 vcl_app_fork_child_handler (void)
703 VDBG (0, "initializing forked child");
708 parent_wrk = vcl_get_worker_index ();
709 vcl_set_worker_index (~0);
710 if (!vcl_worker_alloc_and_init ())
711 VERR ("couldn't allocate new worker");
714 * Attach to binary api
716 child_name = format (0, "%v-child-%u%c", vcm->app_name, getpid (), 0);
718 vppcom_api_hookup ();
719 vcm->app_state = STATE_APP_START;
720 rv = vppcom_connect_to_vpp ((char *) child_name);
721 vec_free (child_name);
724 VERR ("couldn't connect to VPP!");
729 * Register worker with vpp and share sessions
731 vcl_worker_register_with_vpp ();
732 vcl_worker_share_sessions (parent_wrk);
734 VDBG (0, "forked child main worker initialized");
739 vcl_app_fork_parent_handler (void)
748 * VPPCOM Public API functions
751 vppcom_app_create (char *app_name)
753 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
758 clib_warning ("already initialized");
763 vppcom_cfg (&vcm->cfg);
766 vcm->main_cpu = pthread_self ();
767 vcm->main_pid = getpid ();
768 vcm->app_name = format (0, "%s", app_name);
769 vppcom_init_error_string_table ();
770 svm_fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
771 20 /* timeout in secs */ );
772 pool_alloc (vcm->workers, vcl_cfg->max_workers);
773 clib_spinlock_init (&vcm->workers_lock);
774 clib_rwlock_init (&vcm->segment_table_lock);
775 pthread_atfork (NULL, vcl_app_fork_parent_handler,
776 vcl_app_fork_child_handler);
778 /* Allocate default worker */
779 vcl_worker_alloc_and_init ();
781 /* API hookup and connect to VPP */
782 vppcom_api_hookup ();
784 vcm->app_state = STATE_APP_START;
785 rv = vppcom_connect_to_vpp (app_name);
788 VERR ("couldn't connect to VPP!");
791 VDBG (0, "sending session enable");
792 rv = vppcom_app_session_enable ();
795 VERR ("vppcom_app_session_enable() failed!");
799 VDBG (0, "sending app attach");
800 rv = vppcom_app_attach ();
803 VERR ("vppcom_app_attach() failed!");
807 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
808 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
814 vppcom_app_destroy (void)
817 f64 orig_app_timeout;
819 vcl_evt (VCL_EVT_DETACH, vcm);
821 if (vec_len (vcm->workers) == 1)
823 vppcom_app_send_detach ();
824 orig_app_timeout = vcm->cfg.app_timeout;
825 vcm->cfg.app_timeout = 2.0;
826 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
827 vcm->cfg.app_timeout = orig_app_timeout;
828 if (PREDICT_FALSE (rv))
829 VDBG (0, "application detach timed out! returning %d (%s)", rv,
830 vppcom_retval_str (rv));
834 vcl_worker_cleanup ();
838 vl_client_disconnect_from_vlib ();
839 vec_free (vcm->app_name);
843 vppcom_session_create (u8 proto, u8 is_nonblocking)
845 vcl_worker_t *wrk = vcl_worker_get_current ();
846 vcl_session_t *session;
848 session = vcl_session_alloc (wrk);
850 session->session_type = proto;
851 session->session_state = STATE_START;
852 session->vpp_handle = ~0;
853 session->is_dgram = proto == VPPCOM_PROTO_UDP;
856 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
858 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
859 is_nonblocking, session_index);
861 VDBG (0, "created sid %u", session->session_index);
863 return vcl_session_handle (session);
867 vppcom_session_close (uint32_t session_handle)
869 vcl_worker_t *wrk = vcl_worker_get_current ();
870 u8 is_vep, do_disconnect = 1;
871 vcl_session_t *session = 0;
872 session_state_t state;
877 session = vcl_session_get_w_handle (wrk, session_handle);
879 return VPPCOM_EBADFD;
881 if (session->shared_index != ~0)
882 do_disconnect = vcl_worker_unshare_session (wrk, session);
884 is_vep = session->is_vep;
885 next_sh = session->vep.next_sh;
886 vep_sh = session->vep.vep_sh;
887 state = session->session_state;
888 vpp_handle = session->vpp_handle;
890 VDBG (0, "Closing session handle %u vpp handle %u", session_handle,
895 while (next_sh != ~0)
897 rv = vppcom_epoll_ctl (session_handle, EPOLL_CTL_DEL, next_sh, 0);
898 if (PREDICT_FALSE (rv < 0))
899 VDBG (0, "vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL vep_idx %u"
900 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
901 vppcom_retval_str (rv));
903 next_sh = session->vep.next_sh;
908 if (session->is_vep_session)
910 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, session_handle, 0);
912 VDBG (0, "vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL vep_idx %u "
913 "failed! rv %d (%s)", vpp_handle, session_handle, vep_sh,
914 rv, vppcom_retval_str (rv));
920 if (state & STATE_LISTEN)
922 rv = vppcom_session_unbind (session_handle);
923 if (PREDICT_FALSE (rv < 0))
924 VDBG (0, "vpp handle 0x%llx, sid %u: listener unbind failed! "
925 "rv %d (%s)", vpp_handle, session_handle, rv,
926 vppcom_retval_str (rv));
928 else if (state & STATE_OPEN)
930 rv = vppcom_session_disconnect (session_handle);
931 if (PREDICT_FALSE (rv < 0))
932 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
933 "session disconnect failed! rv %d (%s)",
934 getpid (), vpp_handle, session_handle,
935 rv, vppcom_retval_str (rv));
941 if (vcl_session_is_ct (session))
943 vcl_cut_through_registration_t *ctr;
946 mq_addr = pointer_to_uword (session->our_evt_q);
947 ctr = vcl_ct_registration_lock_and_lookup (wrk, mq_addr);
949 if (ctr->epoll_evt_conn_index != ~0)
950 vcl_mq_epoll_del_evfd (wrk, ctr->epoll_evt_conn_index);
951 VDBG (0, "Removing ct registration %u",
952 vcl_ct_registration_index (wrk, ctr));
953 vcl_ct_registration_del (wrk, ctr);
954 vcl_ct_registration_lookup_del (wrk, mq_addr);
955 vcl_ct_registration_unlock (wrk);
958 if (vpp_handle != ~0)
960 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
962 vcl_session_free (wrk, session);
964 VDBG (0, "session handle %u vpp handle %u removed", session_handle,
967 vcl_evt (VCL_EVT_CLOSE, session, rv);
973 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
975 vcl_worker_t *wrk = vcl_worker_get_current ();
976 vcl_session_t *session = 0;
979 return VPPCOM_EINVAL;
981 session = vcl_session_get_w_handle (wrk, session_handle);
983 return VPPCOM_EBADFD;
987 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
988 "bind to an epoll session!", getpid (), session_handle);
989 return VPPCOM_EBADFD;
992 session->transport.is_ip4 = ep->is_ip4;
994 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
995 sizeof (ip4_address_t));
997 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
998 sizeof (ip6_address_t));
999 session->transport.lcl_port = ep->port;
1001 VDBG (0, "VCL<%d>: sid %u: binding to local %s address %U port %u, "
1002 "proto %s", getpid (), session_handle,
1003 session->transport.is_ip4 ? "IPv4" : "IPv6",
1004 format_ip46_address, &session->transport.lcl_ip,
1005 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1006 clib_net_to_host_u16 (session->transport.lcl_port),
1007 session->session_type ? "UDP" : "TCP");
1008 vcl_evt (VCL_EVT_BIND, session);
1010 if (session->session_type == VPPCOM_PROTO_UDP)
1011 vppcom_session_listen (session_handle, 10);
1017 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1019 vcl_worker_t *wrk = vcl_worker_get_current ();
1020 vcl_session_t *listen_session = 0;
1021 u64 listen_vpp_handle;
1024 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1025 if (!listen_session)
1026 return VPPCOM_EBADFD;
1028 if (q_len == 0 || q_len == ~0)
1029 q_len = vcm->cfg.listen_queue_size;
1031 if (listen_session->is_vep)
1033 clib_warning ("VCL<%d>: ERROR: sid %u: cannot listen on an "
1034 "epoll session!", getpid (), listen_sh);
1035 return VPPCOM_EBADFD;
1038 listen_vpp_handle = listen_session->vpp_handle;
1039 if (listen_session->session_state & STATE_LISTEN)
1041 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: already in listen state!",
1042 getpid (), listen_vpp_handle, listen_sh);
1046 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: sending VPP bind+listen "
1047 "request...", getpid (), listen_vpp_handle, listen_sh);
1050 * Send listen request to vpp and wait for reply
1052 vppcom_send_bind_sock (listen_session);
1053 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1055 vcm->cfg.session_timeout);
1057 if (PREDICT_FALSE (rv))
1059 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1060 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: bind+listen failed! "
1061 "returning %d (%s)", getpid (), listen_session->vpp_handle,
1062 listen_sh, rv, vppcom_retval_str (rv));
1070 validate_args_session_accept_ (vcl_worker_t * wrk,
1071 vcl_session_t * listen_session)
1073 /* Input validation - expects spinlock on sessions_lockp */
1074 if (listen_session->is_vep)
1076 clib_warning ("VCL<%d>: ERROR: sid %u: cannot accept on an "
1077 "epoll session!", getpid (),
1078 listen_session->session_index);
1079 return VPPCOM_EBADFD;
1082 if (listen_session->session_state != STATE_LISTEN)
1084 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1085 "not in listen state! state 0x%x (%s)", getpid (),
1086 listen_session->vpp_handle, listen_session->session_index,
1087 listen_session->session_state,
1088 vppcom_session_state_str (listen_session->session_state));
1089 return VPPCOM_EBADFD;
1095 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1098 u32 client_session_index = ~0, listen_session_index;
1099 vcl_worker_t *wrk = vcl_worker_get_current ();
1100 session_accepted_msg_t accepted_msg;
1101 vcl_session_t *listen_session = 0;
1102 vcl_session_t *client_session = 0;
1103 svm_msg_q_t *vpp_evt_q;
1104 vcl_session_msg_t *evt;
1105 u64 listen_vpp_handle;
1106 svm_msg_q_msg_t msg;
1111 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1112 if (!listen_session)
1113 return VPPCOM_EBADFD;
1115 listen_session_index = listen_session->session_index;
1116 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1119 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1121 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1122 accepted_msg = evt->accepted_msg;
1126 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1127 VCL_SESS_ATTR_NONBLOCK);
1128 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1129 return VPPCOM_EAGAIN;
1133 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1134 return VPPCOM_EAGAIN;
1136 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1137 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1139 clib_warning ("discarded event: %u", e->event_type);
1140 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1143 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1144 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1150 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg);
1151 listen_session = vcl_session_get (wrk, listen_session_index);
1152 client_session = vcl_session_get (wrk, client_session_index);
1154 if (flags & O_NONBLOCK)
1155 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1157 listen_vpp_handle = listen_session->vpp_handle;
1158 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: Got a client request! "
1159 "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u",
1160 getpid (), listen_vpp_handle, listen_session_handle,
1161 client_session->vpp_handle, client_session_index,
1162 flags, VCL_SESS_ATTR_TEST (client_session->attr,
1163 VCL_SESS_ATTR_NONBLOCK));
1167 ep->is_ip4 = client_session->transport.is_ip4;
1168 ep->port = client_session->transport.rmt_port;
1169 if (client_session->transport.is_ip4)
1170 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1171 sizeof (ip4_address_t));
1173 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1174 sizeof (ip6_address_t));
1177 if (accepted_msg.server_event_queue_address)
1178 vpp_evt_q = uword_to_pointer (accepted_msg.vpp_event_queue_address,
1181 vpp_evt_q = client_session->vpp_evt_q;
1183 vcl_send_session_accepted_reply (vpp_evt_q, client_session->client_context,
1184 client_session->vpp_handle, 0);
1186 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: accepted vpp handle 0x%llx, "
1187 "sid %u connection from peer %s address %U port %u to local %s "
1188 "address %U port %u", getpid (), listen_vpp_handle,
1189 listen_session_handle, client_session->vpp_handle,
1190 client_session_index,
1191 client_session->transport.is_ip4 ? "IPv4" : "IPv6",
1192 format_ip46_address, &client_session->transport.rmt_ip,
1193 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1194 clib_net_to_host_u16 (client_session->transport.rmt_port),
1195 client_session->transport.is_ip4 ? "IPv4" : "IPv6",
1196 format_ip46_address, &client_session->transport.lcl_ip,
1197 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1198 clib_net_to_host_u16 (client_session->transport.lcl_port));
1199 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1200 client_session_index);
1202 return vcl_session_handle (client_session);
1206 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1208 vcl_worker_t *wrk = vcl_worker_get_current ();
1209 vcl_session_t *session = 0;
1213 session = vcl_session_get_w_handle (wrk, session_handle);
1215 return VPPCOM_EBADFD;
1216 session_index = session->session_index;
1218 if (PREDICT_FALSE (session->is_vep))
1220 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1221 "connect on an epoll session!", getpid (),
1223 return VPPCOM_EBADFD;
1226 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1228 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: session already "
1229 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1230 getpid (), session->vpp_handle, session_handle,
1231 session->transport.is_ip4 ? "IPv4" : "IPv6",
1232 format_ip46_address,
1233 &session->transport.rmt_ip, session->transport.is_ip4 ?
1234 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1235 clib_net_to_host_u16 (session->transport.rmt_port),
1236 session->session_type ? "UDP" : "TCP", session->session_state,
1237 vppcom_session_state_str (session->session_state));
1241 session->transport.is_ip4 = server_ep->is_ip4;
1242 if (session->transport.is_ip4)
1243 clib_memcpy_fast (&session->transport.rmt_ip.ip4, server_ep->ip,
1244 sizeof (ip4_address_t));
1246 clib_memcpy_fast (&session->transport.rmt_ip.ip6, server_ep->ip,
1247 sizeof (ip6_address_t));
1248 session->transport.rmt_port = server_ep->port;
1250 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connecting to server %s %U "
1252 getpid (), session->vpp_handle, session_handle,
1253 session->transport.is_ip4 ? "IPv4" : "IPv6",
1254 format_ip46_address,
1255 &session->transport.rmt_ip, session->transport.is_ip4 ?
1256 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1257 clib_net_to_host_u16 (session->transport.rmt_port),
1258 session->session_type ? "UDP" : "TCP");
1261 * Send connect request and wait for reply from vpp
1263 vppcom_send_connect_sock (session);
1264 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1265 vcm->cfg.session_timeout);
1267 session = vcl_session_get (wrk, session_index);
1269 if (PREDICT_FALSE (rv))
1271 if (VPPCOM_DEBUG > 0)
1274 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: connect "
1275 "failed! returning %d (%s)", getpid (),
1276 session->vpp_handle, session_handle, rv,
1277 vppcom_retval_str (rv));
1279 clib_warning ("VCL<%d>: no session for sid %u: connect failed! "
1280 "returning %d (%s)", getpid (),
1281 session_handle, rv, vppcom_retval_str (rv));
1285 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connected!",
1286 getpid (), session->vpp_handle, session_handle);
1292 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1295 return (e->event_type == FIFO_EVENT_APP_RX
1296 && e->fifo->client_session_index == sid);
1298 return (e->event_type == SESSION_IO_EVT_CT_TX);
1302 vcl_session_is_readable (vcl_session_t * s)
1304 return ((s->session_state & STATE_OPEN)
1305 || (s->session_state == STATE_LISTEN
1306 && s->session_type == VPPCOM_PROTO_UDP));
1310 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1313 vcl_worker_t *wrk = vcl_worker_get_current ();
1314 int n_read = 0, rv, is_nonblocking;
1315 vcl_session_t *s = 0;
1316 svm_fifo_t *rx_fifo;
1317 svm_msg_q_msg_t msg;
1322 if (PREDICT_FALSE (!buf))
1323 return VPPCOM_EINVAL;
1325 s = vcl_session_get_w_handle (wrk, session_handle);
1326 if (PREDICT_FALSE (!s || s->is_vep))
1327 return VPPCOM_EBADFD;
1329 if (PREDICT_FALSE (!vcl_session_is_readable (s)))
1331 session_state_t state = s->session_state;
1332 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1334 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: %s session is not open! "
1335 "state 0x%x (%s), returning %d (%s)",
1336 getpid (), s->vpp_handle, session_handle, state,
1337 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1341 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1342 is_ct = vcl_session_is_ct (s);
1343 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1344 rx_fifo = s->rx_fifo;
1347 if (svm_fifo_is_empty (rx_fifo))
1351 svm_fifo_unset_event (rx_fifo);
1352 return VPPCOM_EWOULDBLOCK;
1354 while (svm_fifo_is_empty (rx_fifo))
1356 svm_fifo_unset_event (rx_fifo);
1357 svm_msg_q_lock (mq);
1358 if (svm_msg_q_is_empty (mq))
1359 svm_msg_q_wait (mq);
1361 svm_msg_q_sub_w_lock (mq, &msg);
1362 e = svm_msg_q_msg_data (mq, &msg);
1363 svm_msg_q_unlock (mq);
1364 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1366 vcl_handle_mq_event (wrk, e);
1367 svm_msg_q_free_msg (mq, &msg);
1370 svm_msg_q_free_msg (mq, &msg);
1372 if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY))
1378 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1380 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1382 if (svm_fifo_is_empty (rx_fifo))
1383 svm_fifo_unset_event (rx_fifo);
1385 if (is_ct && svm_fifo_want_tx_evt (rx_fifo))
1387 svm_fifo_set_want_tx_evt (s->rx_fifo, 0);
1388 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo, SESSION_IO_EVT_CT_RX,
1392 VDBG (2, "VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes from (%p)",
1393 getpid (), s->vpp_handle, session_handle, n_read, rx_fifo);
1399 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1401 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1405 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1407 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1411 vppcom_session_read_segments (uint32_t session_handle,
1412 vppcom_data_segments_t ds)
1414 vcl_worker_t *wrk = vcl_worker_get_current ();
1415 int n_read = 0, rv, is_nonblocking;
1416 vcl_session_t *s = 0;
1417 svm_fifo_t *rx_fifo;
1418 svm_msg_q_msg_t msg;
1423 s = vcl_session_get_w_handle (wrk, session_handle);
1424 if (PREDICT_FALSE (!s || s->is_vep))
1425 return VPPCOM_EBADFD;
1427 if (PREDICT_FALSE (!vcl_session_is_readable (s)))
1429 session_state_t state = s->session_state;
1430 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1434 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1435 is_ct = vcl_session_is_ct (s);
1436 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1437 rx_fifo = s->rx_fifo;
1440 if (svm_fifo_is_empty (rx_fifo))
1444 svm_fifo_unset_event (rx_fifo);
1445 return VPPCOM_EWOULDBLOCK;
1447 while (svm_fifo_is_empty (rx_fifo))
1449 svm_fifo_unset_event (rx_fifo);
1450 svm_msg_q_lock (mq);
1451 if (svm_msg_q_is_empty (mq))
1452 svm_msg_q_wait (mq);
1454 svm_msg_q_sub_w_lock (mq, &msg);
1455 e = svm_msg_q_msg_data (mq, &msg);
1456 svm_msg_q_unlock (mq);
1457 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1459 vcl_handle_mq_event (wrk, e);
1460 svm_msg_q_free_msg (mq, &msg);
1463 svm_msg_q_free_msg (mq, &msg);
1465 if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY))
1470 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_segment_t *) ds);
1471 svm_fifo_unset_event (rx_fifo);
1473 if (is_ct && n_read + svm_fifo_max_dequeue (rx_fifo) == rx_fifo->nitems)
1475 /* If the peer is not polling send notification */
1476 if (!svm_fifo_has_event (s->rx_fifo))
1477 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo,
1478 SESSION_IO_EVT_CT_RX, SVM_Q_WAIT);
1485 vppcom_session_free_segments (uint32_t session_handle,
1486 vppcom_data_segments_t ds)
1488 vcl_worker_t *wrk = vcl_worker_get_current ();
1491 s = vcl_session_get_w_handle (wrk, session_handle);
1492 if (PREDICT_FALSE (!s || s->is_vep))
1495 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_segment_t *) ds);
1499 vppcom_session_read_ready (vcl_session_t * session)
1501 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1502 if (PREDICT_FALSE (session->is_vep))
1504 clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an "
1505 "epoll session!", getpid (), session->session_index);
1506 return VPPCOM_EBADFD;
1509 if (PREDICT_FALSE (!(session->session_state & (STATE_OPEN | STATE_LISTEN))))
1511 session_state_t state = session->session_state;
1514 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1516 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!"
1517 " state 0x%x (%s), returning %d (%s)", getpid (),
1518 session->vpp_handle, session->session_index, state,
1519 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1523 if (session->session_state & STATE_LISTEN)
1524 return clib_fifo_elts (session->accept_evts_fifo);
1526 return svm_fifo_max_dequeue (session->rx_fifo);
1530 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1532 u32 first_copy = clib_min (ds[0].len, max_bytes);
1533 clib_memcpy_fast (buf, ds[0].data, first_copy);
1534 if (first_copy < max_bytes)
1536 clib_memcpy_fast (buf + first_copy, ds[1].data,
1537 clib_min (ds[1].len, max_bytes - first_copy));
1543 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1546 return (e->event_type == FIFO_EVENT_APP_TX
1547 && e->fifo->client_session_index == sid);
1549 return (e->event_type == SESSION_IO_EVT_CT_RX);
1553 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1555 vcl_worker_t *wrk = vcl_worker_get_current ();
1556 int rv, n_write, is_nonblocking;
1557 vcl_session_t *s = 0;
1558 svm_fifo_t *tx_fifo = 0;
1559 session_evt_type_t et;
1560 svm_msg_q_msg_t msg;
1565 if (PREDICT_FALSE (!buf))
1566 return VPPCOM_EINVAL;
1568 s = vcl_session_get_w_handle (wrk, session_handle);
1569 if (PREDICT_FALSE (!s))
1570 return VPPCOM_EBADFD;
1572 if (PREDICT_FALSE (s->is_vep))
1574 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1575 "cannot write to an epoll session!",
1576 getpid (), s->vpp_handle, session_handle);
1578 return VPPCOM_EBADFD;
1581 if (PREDICT_FALSE (!(s->session_state & STATE_OPEN)))
1583 session_state_t state = s->session_state;
1584 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1585 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! "
1586 "state 0x%x (%s)", getpid (), s->vpp_handle, session_handle,
1587 state, vppcom_session_state_str (state));
1591 tx_fifo = s->tx_fifo;
1592 is_ct = vcl_session_is_ct (s);
1593 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1594 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1595 if (svm_fifo_is_full (tx_fifo))
1599 return VPPCOM_EWOULDBLOCK;
1601 while (svm_fifo_is_full (tx_fifo))
1603 svm_fifo_set_want_tx_evt (tx_fifo, 1);
1604 svm_msg_q_lock (mq);
1605 if (svm_msg_q_is_empty (mq))
1606 svm_msg_q_wait (mq);
1608 svm_msg_q_sub_w_lock (mq, &msg);
1609 e = svm_msg_q_msg_data (mq, &msg);
1610 svm_msg_q_unlock (mq);
1612 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1613 vcl_handle_mq_event (wrk, e);
1614 svm_msg_q_free_msg (mq, &msg);
1618 ASSERT (FIFO_EVENT_APP_TX + 1 == SESSION_IO_EVT_CT_TX);
1619 et = FIFO_EVENT_APP_TX + vcl_session_is_ct (s);
1621 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1622 s->vpp_evt_q, buf, n, et, SVM_Q_WAIT);
1624 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1627 ASSERT (n_write > 0);
1629 VDBG (2, "VCL<%d>: vpp handle 0x%llx, sid %u: wrote %d bytes", getpid (),
1630 s->vpp_handle, session_handle, n_write);
1635 static vcl_session_t *
1636 vcl_ct_session_get_from_fifo (vcl_worker_t * wrk, svm_fifo_t * f, u8 type)
1639 s = vcl_session_get (wrk, f->client_session_index);
1643 if (type == 0 && s->rx_fifo == f)
1646 if (type == 1 && s->tx_fifo == f)
1649 s = vcl_session_get (wrk, f->master_session_index);
1652 if (type == 0 && s->rx_fifo == f)
1654 if (type == 1 && s->tx_fifo == f)
1661 vppcom_session_write_ready (vcl_session_t * session)
1663 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1664 if (PREDICT_FALSE (session->is_vep))
1666 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1667 "cannot write to an epoll session!",
1668 getpid (), session->vpp_handle, session->session_index);
1669 return VPPCOM_EBADFD;
1672 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1674 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1675 "cannot write to a listen session!",
1676 getpid (), session->vpp_handle, session->session_index);
1677 return VPPCOM_EBADFD;
1680 if (PREDICT_FALSE (!(session->session_state & STATE_OPEN)))
1682 session_state_t state = session->session_state;
1685 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1686 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1687 "session is not open! state 0x%x (%s), "
1688 "returning %d (%s)", getpid (), session->vpp_handle,
1689 session->session_index,
1690 state, vppcom_session_state_str (state),
1691 rv, vppcom_retval_str (rv));
1695 VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d",
1696 getpid (), session->vpp_handle, session->session_index,
1697 session->tx_fifo, svm_fifo_max_enqueue (session->tx_fifo));
1699 return svm_fifo_max_enqueue (session->tx_fifo);
1703 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq)
1705 svm_msg_q_msg_t *msg;
1709 n_msgs = svm_msg_q_size (mq);
1710 for (i = 0; i < n_msgs; i++)
1712 vec_add2 (wrk->mq_msg_vector, msg, 1);
1713 svm_msg_q_sub_w_lock (mq, msg);
1718 #define vcl_fifo_rx_evt_valid_or_break(_fifo) \
1719 if (PREDICT_FALSE (svm_fifo_is_empty (_fifo))) \
1721 svm_fifo_unset_event (_fifo); \
1722 if (svm_fifo_is_empty (_fifo)) \
1727 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1728 unsigned long n_bits, unsigned long *read_map,
1729 unsigned long *write_map,
1730 unsigned long *except_map, u32 * bits_set)
1732 session_disconnected_msg_t *disconnected_msg;
1733 session_connected_msg_t *connected_msg;
1734 session_accepted_msg_t *accepted_msg;
1735 vcl_session_msg_t *vcl_msg;
1736 vcl_session_t *session;
1740 switch (e->event_type)
1742 case FIFO_EVENT_APP_RX:
1743 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1744 sid = e->fifo->client_session_index;
1745 session = vcl_session_get (wrk, sid);
1748 if (sid < n_bits && read_map)
1750 clib_bitmap_set_no_check (read_map, sid, 1);
1754 case FIFO_EVENT_APP_TX:
1755 sid = e->fifo->client_session_index;
1756 session = vcl_session_get (wrk, sid);
1759 if (sid < n_bits && write_map)
1761 clib_bitmap_set_no_check (write_map, sid, 1);
1765 case SESSION_IO_EVT_CT_TX:
1766 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1767 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
1770 sid = session->session_index;
1771 if (sid < n_bits && read_map)
1773 clib_bitmap_set_no_check (read_map, sid, 1);
1777 case SESSION_IO_EVT_CT_RX:
1778 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
1781 sid = session->session_index;
1782 if (sid < n_bits && write_map)
1784 clib_bitmap_set_no_check (write_map, sid, 1);
1788 case SESSION_CTRL_EVT_ACCEPTED:
1789 accepted_msg = (session_accepted_msg_t *) e->data;
1790 handle = accepted_msg->listener_handle;
1791 session = vcl_session_table_lookup_listener (wrk, handle);
1794 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
1795 "listener handle %llx", getpid (), handle);
1799 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
1800 vcl_msg->accepted_msg = *accepted_msg;
1801 sid = session->session_index;
1802 if (sid < n_bits && read_map)
1804 clib_bitmap_set_no_check (read_map, sid, 1);
1808 case SESSION_CTRL_EVT_CONNECTED:
1809 connected_msg = (session_connected_msg_t *) e->data;
1810 vcl_session_connected_handler (wrk, connected_msg);
1812 case SESSION_CTRL_EVT_DISCONNECTED:
1813 disconnected_msg = (session_disconnected_msg_t *) e->data;
1814 sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
1815 if (sid < n_bits && except_map)
1817 clib_bitmap_set_no_check (except_map, sid, 1);
1821 case SESSION_CTRL_EVT_RESET:
1822 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1823 if (sid < n_bits && except_map)
1825 clib_bitmap_set_no_check (except_map, sid, 1);
1830 clib_warning ("unhandled: %u", e->event_type);
1836 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1837 unsigned long n_bits, unsigned long *read_map,
1838 unsigned long *write_map, unsigned long *except_map,
1839 double time_to_wait, u32 * bits_set)
1841 svm_msg_q_msg_t *msg;
1845 svm_msg_q_lock (mq);
1846 if (svm_msg_q_is_empty (mq))
1850 svm_msg_q_unlock (mq);
1856 svm_msg_q_unlock (mq);
1859 else if (time_to_wait < 0)
1861 svm_msg_q_wait (mq);
1865 if (svm_msg_q_timedwait (mq, time_to_wait))
1867 svm_msg_q_unlock (mq);
1872 vcl_mq_dequeue_batch (wrk, mq);
1873 svm_msg_q_unlock (mq);
1875 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1877 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1878 e = svm_msg_q_msg_data (mq, msg);
1879 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
1880 except_map, bits_set);
1881 svm_msg_q_free_msg (mq, msg);
1883 vec_reset_length (wrk->mq_msg_vector);
1888 vppcom_select_condvar (vcl_worker_t * wrk, unsigned long n_bits,
1889 unsigned long *read_map, unsigned long *write_map,
1890 unsigned long *except_map, double time_to_wait,
1893 double total_wait = 0, wait_slice;
1894 vcl_cut_through_registration_t *cr;
1896 time_to_wait = (time_to_wait == -1) ? 10e9 : time_to_wait;
1897 wait_slice = wrk->cut_through_registrations ? 10e-6 : time_to_wait;
1900 vcl_ct_registration_lock (wrk);
1902 pool_foreach (cr, wrk->cut_through_registrations, ({
1903 vcl_select_handle_mq (wrk, cr->mq, n_bits, read_map, write_map, except_map,
1907 vcl_ct_registration_unlock (wrk);
1909 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1910 write_map, except_map, time_to_wait, bits_set);
1911 total_wait += wait_slice;
1915 while (total_wait < time_to_wait);
1921 vppcom_select_eventfd (vcl_worker_t * wrk, unsigned long n_bits,
1922 unsigned long *read_map, unsigned long *write_map,
1923 unsigned long *except_map, double time_to_wait,
1926 vcl_mq_evt_conn_t *mqc;
1927 int __clib_unused n_read;
1931 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1932 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1933 vec_len (wrk->mq_events), time_to_wait);
1934 for (i = 0; i < n_mq_evts; i++)
1936 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1937 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1938 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1939 except_map, 0, bits_set);
1942 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1946 vppcom_select (unsigned long n_bits, unsigned long *read_map,
1947 unsigned long *write_map, unsigned long *except_map,
1948 double time_to_wait)
1950 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1951 vcl_worker_t *wrk = vcl_worker_get_current ();
1952 vcl_session_t *session = 0;
1955 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
1957 if (n_bits && read_map)
1959 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1960 clib_memcpy_fast (wrk->rd_bitmap, read_map,
1961 vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
1962 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
1964 if (n_bits && write_map)
1966 clib_bitmap_validate (wrk->wr_bitmap, minbits);
1967 clib_memcpy_fast (wrk->wr_bitmap, write_map,
1968 vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
1969 memset (write_map, 0,
1970 vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
1972 if (n_bits && except_map)
1974 clib_bitmap_validate (wrk->ex_bitmap, minbits);
1975 clib_memcpy_fast (wrk->ex_bitmap, except_map,
1976 vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
1977 memset (except_map, 0,
1978 vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
1988 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
1989 if (!(session = vcl_session_get (wrk, sid)))
1991 if (except_map && sid < minbits)
1992 clib_bitmap_set_no_check (except_map, sid, 1);
1996 rv = svm_fifo_is_full (session->tx_fifo);
1999 clib_bitmap_set_no_check (write_map, sid, 1);
2008 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2009 if (!(session = vcl_session_get (wrk, sid)))
2011 if (except_map && sid < minbits)
2012 clib_bitmap_set_no_check (except_map, sid, 1);
2016 rv = vppcom_session_read_ready (session);
2019 clib_bitmap_set_no_check (read_map, sid, 1);
2027 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2029 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2030 read_map, write_map, except_map, &bits_set);
2032 vec_reset_length (wrk->unhandled_evts_vector);
2034 if (vcm->cfg.use_mq_eventfd)
2035 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2036 time_to_wait, &bits_set);
2038 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2039 time_to_wait, &bits_set);
2045 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
2047 vcl_session_t *session;
2048 vppcom_epoll_t *vep;
2051 if (VPPCOM_DEBUG <= 1)
2054 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2055 session = vcl_session_get (wrk, vep_idx);
2056 if (PREDICT_FALSE (!session))
2058 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
2059 getpid (), vep_idx);
2062 if (PREDICT_FALSE (!session->is_vep))
2064 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2065 getpid (), vep_idx);
2068 vep = &session->vep;
2069 clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n"
2072 " is_vep_session = %u\n"
2073 " next_sid = 0x%x (%u)\n"
2074 " wait_cont_idx = 0x%x (%u)\n"
2075 "}\n", getpid (), vep_idx,
2076 session->is_vep, session->is_vep_session,
2077 vep->next_sh, vep->next_sh,
2078 session->wait_cont_idx, session->wait_cont_idx);
2080 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
2082 session = vcl_session_get (wrk, sid);
2083 if (PREDICT_FALSE (!session))
2085 clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
2088 if (PREDICT_FALSE (session->is_vep))
2089 clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!",
2090 getpid (), vep_idx);
2091 else if (PREDICT_FALSE (!session->is_vep_session))
2093 clib_warning ("VCL<%d>: ERROR: session (%u) "
2094 "is not a vep session!", getpid (), sid);
2097 vep = &session->vep;
2098 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
2099 clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
2100 "vep_idx (%u)!", getpid (),
2101 sid, session->vep.vep_sh, vep_idx);
2102 if (session->is_vep_session)
2104 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
2106 " next_sid = 0x%x (%u)\n"
2107 " prev_sid = 0x%x (%u)\n"
2108 " vep_idx = 0x%x (%u)\n"
2109 " ev.events = 0x%x\n"
2110 " ev.data.u64 = 0x%llx\n"
2114 vep->next_sh, vep->next_sh,
2115 vep->prev_sh, vep->prev_sh,
2116 vep->vep_sh, vep->vep_sh,
2117 vep->ev.events, vep->ev.data.u64, vep->et_mask);
2122 clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n",
2123 getpid (), vep_idx);
2127 vppcom_epoll_create (void)
2129 vcl_worker_t *wrk = vcl_worker_get_current ();
2130 vcl_session_t *vep_session;
2132 vep_session = vcl_session_alloc (wrk);
2134 vep_session->is_vep = 1;
2135 vep_session->vep.vep_sh = ~0;
2136 vep_session->vep.next_sh = ~0;
2137 vep_session->vep.prev_sh = ~0;
2138 vep_session->wait_cont_idx = ~0;
2139 vep_session->vpp_handle = ~0;
2141 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_sh);
2142 VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!",
2143 getpid (), vep_session->session_index, vep_session->session_index);
2145 return vcl_session_handle (vep_session);
2149 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2150 struct epoll_event *event)
2152 vcl_worker_t *wrk = vcl_worker_get_current ();
2153 vcl_session_t *vep_session;
2154 vcl_session_t *session;
2157 if (vep_handle == session_handle)
2159 clib_warning ("VCL<%d>: ERROR: vep_idx == session_index (%u)!",
2160 getpid (), vep_handle);
2161 return VPPCOM_EINVAL;
2164 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2165 if (PREDICT_FALSE (!vep_session))
2167 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_handle);
2168 return VPPCOM_EBADFD;
2170 if (PREDICT_FALSE (!vep_session->is_vep))
2172 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2173 getpid (), vep_handle);
2174 return VPPCOM_EINVAL;
2177 ASSERT (vep_session->vep.vep_sh == ~0);
2178 ASSERT (vep_session->vep.prev_sh == ~0);
2180 session = vcl_session_get_w_handle (wrk, session_handle);
2181 if (PREDICT_FALSE (!session))
2183 VDBG (0, "VCL<%d>: ERROR: Invalid session_handle (%u)!",
2184 getpid (), session_handle);
2185 return VPPCOM_EBADFD;
2187 if (PREDICT_FALSE (session->is_vep))
2189 clib_warning ("ERROR: session_handle (%u) is a vep!", vep_handle);
2190 return VPPCOM_EINVAL;
2196 if (PREDICT_FALSE (!event))
2198 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: NULL pointer to "
2199 "epoll_event structure!", getpid ());
2200 return VPPCOM_EINVAL;
2202 if (vep_session->vep.next_sh != ~0)
2204 vcl_session_t *next_session;
2205 next_session = vcl_session_get_w_handle (wrk,
2206 vep_session->vep.next_sh);
2207 if (PREDICT_FALSE (!next_session))
2209 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid "
2210 "vep.next_sid (%u) on vep_idx (%u)!",
2211 getpid (), vep_session->vep.next_sh, vep_handle);
2212 return VPPCOM_EBADFD;
2214 ASSERT (next_session->vep.prev_sh == vep_handle);
2215 next_session->vep.prev_sh = session_handle;
2217 session->vep.next_sh = vep_session->vep.next_sh;
2218 session->vep.prev_sh = vep_handle;
2219 session->vep.vep_sh = vep_handle;
2220 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2221 session->vep.ev = *event;
2222 session->is_vep = 0;
2223 session->is_vep_session = 1;
2224 vep_session->vep.next_sh = session_handle;
2226 VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x, "
2227 "data 0x%llx!", getpid (), vep_handle, session_handle,
2228 event->events, event->data.u64);
2229 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2233 if (PREDICT_FALSE (!event))
2235 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_MOD: NULL pointer to "
2236 "epoll_event structure!", getpid ());
2240 else if (PREDICT_FALSE (!session->is_vep_session))
2242 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2243 "not a vep session!", getpid (), session_handle);
2247 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2249 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2250 "vep_idx (%u) != vep_idx (%u)!",
2251 getpid (), session_handle,
2252 session->vep.vep_sh, vep_handle);
2256 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2257 session->vep.ev = *event;
2258 VDBG (1, "VCL<%d>: EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
2259 " data 0x%llx!", getpid (), vep_handle, session_handle,
2260 event->events, event->data.u64);
2264 if (PREDICT_FALSE (!session->is_vep_session))
2266 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2267 "not a vep session!", getpid (), session_handle);
2271 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2273 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2274 "vep_idx (%u) != vep_idx (%u)!",
2275 getpid (), session_handle,
2276 session->vep.vep_sh, vep_handle);
2281 vep_session->wait_cont_idx =
2282 (vep_session->wait_cont_idx == session_handle) ?
2283 session->vep.next_sh : vep_session->wait_cont_idx;
2285 if (session->vep.prev_sh == vep_handle)
2286 vep_session->vep.next_sh = session->vep.next_sh;
2289 vcl_session_t *prev_session;
2290 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2291 if (PREDICT_FALSE (!prev_session))
2293 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2294 "vep.prev_sid (%u) on sid (%u)!",
2295 getpid (), session->vep.prev_sh, session_handle);
2296 return VPPCOM_EBADFD;
2298 ASSERT (prev_session->vep.next_sh == session_handle);
2299 prev_session->vep.next_sh = session->vep.next_sh;
2301 if (session->vep.next_sh != ~0)
2303 vcl_session_t *next_session;
2304 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2305 if (PREDICT_FALSE (!next_session))
2307 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2308 "vep.next_sid (%u) on sid (%u)!",
2309 getpid (), session->vep.next_sh, session_handle);
2310 return VPPCOM_EBADFD;
2312 ASSERT (next_session->vep.prev_sh == session_handle);
2313 next_session->vep.prev_sh = session->vep.prev_sh;
2316 memset (&session->vep, 0, sizeof (session->vep));
2317 session->vep.next_sh = ~0;
2318 session->vep.prev_sh = ~0;
2319 session->vep.vep_sh = ~0;
2320 session->is_vep_session = 0;
2321 VDBG (1, "VCL<%d>: EPOLL_CTL_DEL: vep_idx %u, sid %u!",
2322 getpid (), vep_handle, session_handle);
2323 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2327 clib_warning ("VCL<%d>: ERROR: Invalid operation (%d)!", getpid (), op);
2331 vep_verify_epoll_chain (wrk, vep_handle);
2338 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2339 struct epoll_event *events, u32 * num_ev)
2341 session_disconnected_msg_t *disconnected_msg;
2342 session_connected_msg_t *connected_msg;
2343 session_accepted_msg_t *accepted_msg;
2344 u64 session_evt_data = ~0, handle;
2345 u32 sid = ~0, session_events;
2346 vcl_session_msg_t *vcl_msg;
2347 vcl_session_t *session;
2350 switch (e->event_type)
2352 case FIFO_EVENT_APP_RX:
2353 ASSERT (e->fifo->client_thread_index == vcl_get_worker_index ());
2354 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2355 sid = e->fifo->client_session_index;
2356 session = vcl_session_get (wrk, sid);
2357 session_events = session->vep.ev.events;
2358 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2361 events[*num_ev].events |= EPOLLIN;
2362 session_evt_data = session->vep.ev.data.u64;
2363 session->has_rx_evt = 1;
2365 case FIFO_EVENT_APP_TX:
2366 sid = e->fifo->client_session_index;
2367 session = vcl_session_get (wrk, sid);
2368 session_events = session->vep.ev.events;
2369 if (!(EPOLLOUT & session_events))
2372 events[*num_ev].events |= EPOLLOUT;
2373 session_evt_data = session->vep.ev.data.u64;
2375 case SESSION_IO_EVT_CT_TX:
2376 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2377 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
2378 sid = session->session_index;
2379 session_events = session->vep.ev.events;
2380 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2383 events[*num_ev].events |= EPOLLIN;
2384 session_evt_data = session->vep.ev.data.u64;
2385 session->has_rx_evt = 1;
2387 case SESSION_IO_EVT_CT_RX:
2388 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
2389 sid = session->session_index;
2390 session_events = session->vep.ev.events;
2391 if (!(EPOLLOUT & session_events))
2394 events[*num_ev].events |= EPOLLOUT;
2395 session_evt_data = session->vep.ev.data.u64;
2397 case SESSION_CTRL_EVT_ACCEPTED:
2398 accepted_msg = (session_accepted_msg_t *) e->data;
2399 handle = accepted_msg->listener_handle;
2400 session = vcl_session_table_lookup_listener (wrk, handle);
2403 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
2404 "listener handle %llx", getpid (), handle);
2408 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
2409 vcl_msg->accepted_msg = *accepted_msg;
2410 session_events = session->vep.ev.events;
2411 if (!(EPOLLIN & session_events))
2415 events[*num_ev].events |= EPOLLIN;
2416 session_evt_data = session->vep.ev.data.u64;
2418 case SESSION_CTRL_EVT_CONNECTED:
2419 connected_msg = (session_connected_msg_t *) e->data;
2420 vcl_session_connected_handler (wrk, connected_msg);
2421 /* Generate EPOLLOUT because there's no connected event */
2422 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2423 session = vcl_session_get (wrk, sid);
2424 session_events = session->vep.ev.events;
2425 if (EPOLLOUT & session_events)
2428 events[*num_ev].events |= EPOLLOUT;
2429 session_evt_data = session->vep.ev.data.u64;
2432 case SESSION_CTRL_EVT_DISCONNECTED:
2433 disconnected_msg = (session_disconnected_msg_t *) e->data;
2434 sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
2435 if (!(session = vcl_session_get (wrk, sid)))
2438 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2439 session_evt_data = session->vep.ev.data.u64;
2440 session_events = session->vep.ev.events;
2442 case SESSION_CTRL_EVT_RESET:
2443 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2444 if (!(session = vcl_session_get (wrk, sid)))
2447 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2448 session_evt_data = session->vep.ev.data.u64;
2449 session_events = session->vep.ev.events;
2452 VDBG (0, "unhandled: %u", e->event_type);
2458 events[*num_ev].data.u64 = session_evt_data;
2459 if (EPOLLONESHOT & session_events)
2461 session = vcl_session_get (wrk, sid);
2462 session->vep.ev.events = 0;
2469 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2470 struct epoll_event *events, u32 maxevents,
2471 double wait_for_time, u32 * num_ev)
2473 svm_msg_q_msg_t *msg;
2477 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2478 goto handle_dequeued;
2480 svm_msg_q_lock (mq);
2481 if (svm_msg_q_is_empty (mq))
2485 svm_msg_q_unlock (mq);
2488 else if (wait_for_time < 0)
2490 svm_msg_q_wait (mq);
2494 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2496 svm_msg_q_unlock (mq);
2501 vcl_mq_dequeue_batch (wrk, mq);
2502 svm_msg_q_unlock (mq);
2505 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2507 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2508 e = svm_msg_q_msg_data (mq, msg);
2509 if (*num_ev < maxevents)
2510 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2512 vec_add1 (wrk->unhandled_evts_vector, *e);
2513 svm_msg_q_free_msg (mq, msg);
2515 vec_reset_length (wrk->mq_msg_vector);
2521 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2522 int maxevents, u32 n_evts, double wait_for_time)
2524 vcl_cut_through_registration_t *cr;
2525 double total_wait = 0, wait_slice;
2528 wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time;
2529 wait_slice = wrk->cut_through_registrations ? 10e-6 : wait_for_time;
2533 vcl_ct_registration_lock (wrk);
2535 pool_foreach (cr, wrk->cut_through_registrations, ({
2536 vcl_epoll_wait_handle_mq (wrk, cr->mq, events, maxevents, 0, &n_evts);
2539 vcl_ct_registration_unlock (wrk);
2541 rv = vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events,
2542 maxevents, n_evts ? 0 : wait_slice,
2545 total_wait += wait_slice;
2549 while (total_wait < wait_for_time);
2554 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2555 int maxevents, u32 n_evts, double wait_for_time)
2557 vcl_mq_evt_conn_t *mqc;
2558 int __clib_unused n_read;
2562 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2564 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2565 vec_len (wrk->mq_events), wait_for_time);
2566 for (i = 0; i < n_mq_evts; i++)
2568 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2569 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2570 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2572 if (!n_evts && n_mq_evts > 0)
2575 return (int) n_evts;
2579 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2580 int maxevents, double wait_for_time)
2582 vcl_worker_t *wrk = vcl_worker_get_current ();
2583 vcl_session_t *vep_session;
2587 if (PREDICT_FALSE (maxevents <= 0))
2589 clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
2590 getpid (), maxevents);
2591 return VPPCOM_EINVAL;
2594 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2596 return VPPCOM_EBADFD;
2598 if (PREDICT_FALSE (!vep_session->is_vep))
2600 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2601 getpid (), vep_handle);
2602 return VPPCOM_EINVAL;
2605 memset (events, 0, sizeof (*events) * maxevents);
2607 if (vec_len (wrk->unhandled_evts_vector))
2609 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2611 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2613 if (n_evts == maxevents)
2620 vec_delete (wrk->unhandled_evts_vector, i, 0);
2623 if (vcm->cfg.use_mq_eventfd)
2624 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2627 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2632 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2633 void *buffer, uint32_t * buflen)
2635 vcl_worker_t *wrk = vcl_worker_get_current ();
2636 vcl_session_t *session;
2638 u32 *flags = buffer;
2639 vppcom_endpt_t *ep = buffer;
2641 session = vcl_session_get_w_handle (wrk, session_handle);
2643 return VPPCOM_EBADFD;
2647 case VPPCOM_ATTR_GET_NREAD:
2648 rv = vppcom_session_read_ready (session);
2649 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d",
2653 case VPPCOM_ATTR_GET_NWRITE:
2654 rv = vppcom_session_write_ready (session);
2655 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
2656 getpid (), session_handle, rv);
2659 case VPPCOM_ATTR_GET_FLAGS:
2660 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2662 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2663 VCL_SESS_ATTR_NONBLOCK));
2664 *buflen = sizeof (*flags);
2665 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
2666 "is_nonblocking = %u", getpid (),
2667 session_handle, *flags,
2668 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2674 case VPPCOM_ATTR_SET_FLAGS:
2675 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2677 if (*flags & O_NONBLOCK)
2678 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2680 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2682 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
2683 " is_nonblocking = %u",
2684 getpid (), session_handle, *flags,
2685 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2691 case VPPCOM_ATTR_GET_PEER_ADDR:
2692 if (PREDICT_TRUE (buffer && buflen &&
2693 (*buflen >= sizeof (*ep)) && ep->ip))
2695 ep->is_ip4 = session->transport.is_ip4;
2696 ep->port = session->transport.rmt_port;
2697 if (session->transport.is_ip4)
2698 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
2699 sizeof (ip4_address_t));
2701 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
2702 sizeof (ip6_address_t));
2703 *buflen = sizeof (*ep);
2704 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
2705 "addr = %U, port %u", getpid (),
2706 session_handle, ep->is_ip4, format_ip46_address,
2707 &session->transport.rmt_ip,
2708 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2709 clib_net_to_host_u16 (ep->port));
2715 case VPPCOM_ATTR_GET_LCL_ADDR:
2716 if (PREDICT_TRUE (buffer && buflen &&
2717 (*buflen >= sizeof (*ep)) && ep->ip))
2719 ep->is_ip4 = session->transport.is_ip4;
2720 ep->port = session->transport.lcl_port;
2721 if (session->transport.is_ip4)
2722 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
2723 sizeof (ip4_address_t));
2725 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
2726 sizeof (ip6_address_t));
2727 *buflen = sizeof (*ep);
2728 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
2729 " addr = %U port %d", getpid (),
2730 session_handle, ep->is_ip4, format_ip46_address,
2731 &session->transport.lcl_ip,
2732 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2733 clib_net_to_host_u16 (ep->port));
2739 case VPPCOM_ATTR_GET_LIBC_EPFD:
2740 rv = session->libc_epfd;
2741 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
2745 case VPPCOM_ATTR_SET_LIBC_EPFD:
2746 if (PREDICT_TRUE (buffer && buflen &&
2747 (*buflen == sizeof (session->libc_epfd))))
2749 session->libc_epfd = *(int *) buffer;
2750 *buflen = sizeof (session->libc_epfd);
2752 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, "
2753 "buflen %d", getpid (), session->libc_epfd, *buflen);
2759 case VPPCOM_ATTR_GET_PROTOCOL:
2760 if (buffer && buflen && (*buflen >= sizeof (int)))
2762 *(int *) buffer = session->session_type;
2763 *buflen = sizeof (int);
2765 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2766 getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP",
2773 case VPPCOM_ATTR_GET_LISTEN:
2774 if (buffer && buflen && (*buflen >= sizeof (int)))
2776 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2777 VCL_SESS_ATTR_LISTEN);
2778 *buflen = sizeof (int);
2780 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d",
2781 getpid (), *(int *) buffer, *buflen);
2787 case VPPCOM_ATTR_GET_ERROR:
2788 if (buffer && buflen && (*buflen >= sizeof (int)))
2790 *(int *) buffer = 0;
2791 *buflen = sizeof (int);
2793 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2794 getpid (), *(int *) buffer, *buflen);
2800 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2801 if (buffer && buflen && (*buflen >= sizeof (u32)))
2805 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2806 session->tx_fifo ? session->tx_fifo->nitems :
2807 vcm->cfg.tx_fifo_size);
2808 *buflen = sizeof (u32);
2810 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
2811 "buflen %d, #VPP-TBD#", getpid (),
2812 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2818 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2819 if (buffer && buflen && (*buflen == sizeof (u32)))
2822 session->sndbuf_size = *(u32 *) buffer;
2823 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), "
2824 "buflen %d, #VPP-TBD#", getpid (),
2825 session->sndbuf_size, session->sndbuf_size, *buflen);
2831 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2832 if (buffer && buflen && (*buflen >= sizeof (u32)))
2836 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2837 session->rx_fifo ? session->rx_fifo->nitems :
2838 vcm->cfg.rx_fifo_size);
2839 *buflen = sizeof (u32);
2841 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
2842 "buflen %d, #VPP-TBD#", getpid (),
2843 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2849 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2850 if (buffer && buflen && (*buflen == sizeof (u32)))
2853 session->rcvbuf_size = *(u32 *) buffer;
2854 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), "
2855 "buflen %d, #VPP-TBD#", getpid (),
2856 session->sndbuf_size, session->sndbuf_size, *buflen);
2862 case VPPCOM_ATTR_GET_REUSEADDR:
2863 if (buffer && buflen && (*buflen >= sizeof (int)))
2866 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2867 VCL_SESS_ATTR_REUSEADDR);
2868 *buflen = sizeof (int);
2870 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
2871 "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2877 case VPPCOM_ATTR_SET_REUSEADDR:
2878 if (buffer && buflen && (*buflen == sizeof (int)) &&
2879 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2882 if (*(int *) buffer)
2883 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2885 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2887 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d,"
2888 " #VPP-TBD#", getpid (),
2889 VCL_SESS_ATTR_TEST (session->attr,
2890 VCL_SESS_ATTR_REUSEADDR), *buflen);
2896 case VPPCOM_ATTR_GET_REUSEPORT:
2897 if (buffer && buflen && (*buflen >= sizeof (int)))
2900 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2901 VCL_SESS_ATTR_REUSEPORT);
2902 *buflen = sizeof (int);
2904 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d,"
2905 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2911 case VPPCOM_ATTR_SET_REUSEPORT:
2912 if (buffer && buflen && (*buflen == sizeof (int)) &&
2913 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2916 if (*(int *) buffer)
2917 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2919 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2921 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d,"
2922 " #VPP-TBD#", getpid (),
2923 VCL_SESS_ATTR_TEST (session->attr,
2924 VCL_SESS_ATTR_REUSEPORT), *buflen);
2930 case VPPCOM_ATTR_GET_BROADCAST:
2931 if (buffer && buflen && (*buflen >= sizeof (int)))
2934 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2935 VCL_SESS_ATTR_BROADCAST);
2936 *buflen = sizeof (int);
2938 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d,"
2939 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2945 case VPPCOM_ATTR_SET_BROADCAST:
2946 if (buffer && buflen && (*buflen == sizeof (int)))
2949 if (*(int *) buffer)
2950 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2952 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2954 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, "
2955 "#VPP-TBD#", getpid (),
2956 VCL_SESS_ATTR_TEST (session->attr,
2957 VCL_SESS_ATTR_BROADCAST), *buflen);
2963 case VPPCOM_ATTR_GET_V6ONLY:
2964 if (buffer && buflen && (*buflen >= sizeof (int)))
2967 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2968 VCL_SESS_ATTR_V6ONLY);
2969 *buflen = sizeof (int);
2971 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, "
2972 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2978 case VPPCOM_ATTR_SET_V6ONLY:
2979 if (buffer && buflen && (*buflen == sizeof (int)))
2982 if (*(int *) buffer)
2983 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2985 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2987 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, "
2988 "#VPP-TBD#", getpid (),
2989 VCL_SESS_ATTR_TEST (session->attr,
2990 VCL_SESS_ATTR_V6ONLY), *buflen);
2996 case VPPCOM_ATTR_GET_KEEPALIVE:
2997 if (buffer && buflen && (*buflen >= sizeof (int)))
3000 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3001 VCL_SESS_ATTR_KEEPALIVE);
3002 *buflen = sizeof (int);
3004 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, "
3005 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3011 case VPPCOM_ATTR_SET_KEEPALIVE:
3012 if (buffer && buflen && (*buflen == sizeof (int)))
3015 if (*(int *) buffer)
3016 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3018 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3020 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, "
3021 "#VPP-TBD#", getpid (),
3022 VCL_SESS_ATTR_TEST (session->attr,
3023 VCL_SESS_ATTR_KEEPALIVE), *buflen);
3029 case VPPCOM_ATTR_GET_TCP_NODELAY:
3030 if (buffer && buflen && (*buflen >= sizeof (int)))
3033 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3034 VCL_SESS_ATTR_TCP_NODELAY);
3035 *buflen = sizeof (int);
3037 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, "
3038 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3044 case VPPCOM_ATTR_SET_TCP_NODELAY:
3045 if (buffer && buflen && (*buflen == sizeof (int)))
3048 if (*(int *) buffer)
3049 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3051 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3053 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, "
3054 "#VPP-TBD#", getpid (),
3055 VCL_SESS_ATTR_TEST (session->attr,
3056 VCL_SESS_ATTR_TCP_NODELAY), *buflen);
3062 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3063 if (buffer && buflen && (*buflen >= sizeof (int)))
3066 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3067 VCL_SESS_ATTR_TCP_KEEPIDLE);
3068 *buflen = sizeof (int);
3070 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, "
3071 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3077 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3078 if (buffer && buflen && (*buflen == sizeof (int)))
3081 if (*(int *) buffer)
3082 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3084 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3086 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, "
3087 "#VPP-TBD#", getpid (),
3088 VCL_SESS_ATTR_TEST (session->attr,
3089 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3095 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3096 if (buffer && buflen && (*buflen >= sizeof (int)))
3099 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3100 VCL_SESS_ATTR_TCP_KEEPINTVL);
3101 *buflen = sizeof (int);
3103 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, "
3104 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3110 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3111 if (buffer && buflen && (*buflen == sizeof (int)))
3114 if (*(int *) buffer)
3115 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3117 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3119 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, "
3120 "#VPP-TBD#", getpid (),
3121 VCL_SESS_ATTR_TEST (session->attr,
3122 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3128 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3129 if (buffer && buflen && (*buflen >= sizeof (u32)))
3132 *(u32 *) buffer = session->user_mss;
3133 *buflen = sizeof (int);
3135 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d,"
3136 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3142 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3143 if (buffer && buflen && (*buflen == sizeof (u32)))
3146 session->user_mss = *(u32 *) buffer;
3148 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, "
3149 "#VPP-TBD#", getpid (), session->user_mss, *buflen);
3155 case VPPCOM_ATTR_GET_REFCNT:
3156 rv = vcl_session_get_refcnt (session);
3168 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3169 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3171 vcl_worker_t *wrk = vcl_worker_get_current ();
3173 vcl_session_t *session = 0;
3177 session = vcl_session_get_w_handle (wrk, session_handle);
3178 if (PREDICT_FALSE (!session))
3180 VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
3181 getpid (), session_handle);
3182 return VPPCOM_EBADFD;
3184 ep->is_ip4 = session->transport.is_ip4;
3185 ep->port = session->transport.rmt_port;
3189 rv = vppcom_session_read (session_handle, buffer, buflen);
3190 else if (flags & MSG_PEEK)
3191 rv = vppcom_session_peek (session_handle, buffer, buflen);
3194 clib_warning ("VCL<%d>: Unsupport flags for recvfrom %d",
3196 return VPPCOM_EAFNOSUPPORT;
3201 if (session->transport.is_ip4)
3202 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3203 sizeof (ip4_address_t));
3205 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3206 sizeof (ip6_address_t));
3213 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3214 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3217 return VPPCOM_EINVAL;
3222 return VPPCOM_EINVAL;
3227 // TBD check the flags and do the right thing
3228 VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.",
3229 getpid (), flags, flags);
3232 return (vppcom_session_write (session_handle, buffer, buflen));
3236 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3238 vcl_worker_t *wrk = vcl_worker_get_current ();
3239 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3240 u32 i, keep_trying = 1;
3241 svm_msg_q_msg_t msg;
3245 VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
3246 getpid (), vp, n_sids, wait_for_time);
3249 return VPPCOM_EFAULT;
3253 vcl_session_t *session;
3255 /* Dequeue all events and drop all unhandled io events */
3256 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3258 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3259 vcl_handle_mq_event (wrk, e);
3260 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3262 vec_reset_length (wrk->unhandled_evts_vector);
3264 for (i = 0; i < n_sids; i++)
3266 session = vcl_session_get (wrk, vp[i].sid);
3269 vp[i].revents = POLLHUP;
3276 if (POLLIN & vp[i].events)
3278 rv = vppcom_session_read_ready (session);
3281 vp[i].revents |= POLLIN;
3288 case VPPCOM_ECONNRESET:
3289 vp[i].revents = POLLHUP;
3293 vp[i].revents = POLLERR;
3300 if (POLLOUT & vp[i].events)
3302 rv = vppcom_session_write_ready (session);
3305 vp[i].revents |= POLLOUT;
3312 case VPPCOM_ECONNRESET:
3313 vp[i].revents = POLLHUP;
3317 vp[i].revents = POLLERR;
3324 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3326 vp[i].revents = POLLNVAL;
3330 if (wait_for_time != -1)
3331 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3333 while ((num_ev == 0) && keep_trying);
3335 if (VPPCOM_DEBUG > 3)
3337 clib_warning ("VCL<%d>: returning %d", getpid (), num_ev);
3338 for (i = 0; i < n_sids; i++)
3340 clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
3341 ".revents 0x%x", getpid (), i, vp[i].sid, vp[i].sid,
3342 vp[i].events, vp[i].revents);
3349 vppcom_mq_epoll_fd (void)
3351 vcl_worker_t *wrk = vcl_worker_get_current ();
3352 return wrk->mqs_epfd;
3356 vppcom_session_index (uint32_t session_handle)
3358 return session_handle & 0xFFFFFF;
3362 vppcom_session_handle (uint32_t session_index)
3364 return (vcl_get_worker_index () << 24) | session_index;
3368 vppcom_worker_register (void)
3370 if (!vcl_worker_alloc_and_init ())
3371 return VPPCOM_EEXIST;
3373 if (vcl_worker_set_bapi ())
3374 return VPPCOM_EEXIST;
3376 if (vcl_worker_register_with_vpp ())
3377 return VPPCOM_EEXIST;
3383 vppcom_worker_index (void)
3385 return vcl_get_worker_index ();
3389 * fd.io coding-style-patch-verification: ON
3392 * eval: (c-set-style "gnu")