2 * Copyright (c) 2017 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <svm/svm_fifo_segment.h>
19 #include <vcl/vppcom.h>
20 #include <vcl/vcl_event.h>
21 #include <vcl/vcl_debug.h>
22 #include <vcl/vcl_private.h>
24 __thread uword __vcl_worker_index = ~0;
29 sigsegv_signal (int signum)
35 vcl_wait_for_memory (void *mem)
37 u8 __clib_unused test;
38 if (vcm->mounting_segment)
40 while (vcm->mounting_segment)
49 if (signal (SIGSEGV, sigsegv_signal))
65 signal (SIGSEGV, SIG_DFL);
69 vppcom_session_state_str (session_state_t state)
91 case STATE_CLOSE_ON_EMPTY:
92 st = "STATE_CLOSE_ON_EMPTY";
95 case STATE_DISCONNECT:
96 st = "STATE_DISCONNECT";
104 st = "UNKNOWN_STATE";
112 format_ip4_address (u8 * s, va_list * args)
114 u8 *a = va_arg (*args, u8 *);
115 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
119 format_ip6_address (u8 * s, va_list * args)
121 ip6_address_t *a = va_arg (*args, ip6_address_t *);
122 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
124 i_max_n_zero = ARRAY_LEN (a->as_u16);
126 i_first_zero = i_max_n_zero;
128 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
130 u32 is_zero = a->as_u16[i] == 0;
131 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
137 if ((!is_zero && n_zeros > max_n_zeros)
138 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
140 i_max_n_zero = i_first_zero;
141 max_n_zeros = n_zeros;
142 i_first_zero = ARRAY_LEN (a->as_u16);
147 last_double_colon = 0;
148 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
150 if (i == i_max_n_zero && max_n_zeros > 1)
152 s = format (s, "::");
153 i += max_n_zeros - 1;
154 last_double_colon = 1;
158 s = format (s, "%s%x",
159 (last_double_colon || i == 0) ? "" : ":",
160 clib_net_to_host_u16 (a->as_u16[i]));
161 last_double_colon = 0;
168 /* Format an IP46 address. */
170 format_ip46_address (u8 * s, va_list * args)
172 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
173 ip46_type_t type = va_arg (*args, ip46_type_t);
179 is_ip4 = ip46_address_is_ip4 (ip46);
190 format (s, "%U", format_ip4_address, &ip46->ip4) :
191 format (s, "%U", format_ip6_address, &ip46->ip6);
195 * VPPCOM Utility Functions
200 vcl_session_vpp_evt_q (vcl_worker_t * wrk, vcl_session_t * s)
202 if (vcl_session_is_ct (s))
203 return wrk->vpp_event_queues[0];
205 return wrk->vpp_event_queues[s->tx_fifo->master_thread_index];
209 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
210 session_handle_t handle, int retval)
212 app_session_evt_t _app_evt, *app_evt = &_app_evt;
213 session_accepted_reply_msg_t *rmp;
214 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
215 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
216 rmp->handle = handle;
217 rmp->context = context;
218 rmp->retval = retval;
219 app_send_ctrl_evt_to_vpp (mq, app_evt);
223 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
224 session_handle_t handle, int retval)
226 app_session_evt_t _app_evt, *app_evt = &_app_evt;
227 session_disconnected_reply_msg_t *rmp;
228 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
229 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
230 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
231 rmp->handle = handle;
232 rmp->context = context;
233 rmp->retval = retval;
234 app_send_ctrl_evt_to_vpp (mq, app_evt);
238 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
239 session_handle_t handle, int retval)
241 app_session_evt_t _app_evt, *app_evt = &_app_evt;
242 session_reset_reply_msg_t *rmp;
243 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
244 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
245 rmp->handle = handle;
246 rmp->context = context;
247 rmp->retval = retval;
248 app_send_ctrl_evt_to_vpp (mq, app_evt);
252 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp)
254 vcl_session_t *session, *listen_session;
255 svm_fifo_t *rx_fifo, *tx_fifo;
259 session = vcl_session_alloc (wrk);
261 listen_session = vcl_session_table_lookup_listener (wrk,
262 mp->listener_handle);
266 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
267 clib_warning ("VCL<%d>: ERROR: couldn't find listen session: "
268 "unknown vpp listener handle %llx",
269 getpid (), mp->listener_handle);
270 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
271 VNET_API_ERROR_INVALID_ARGUMENT);
272 vcl_session_free (wrk, session);
273 return VCL_INVALID_SESSION_INDEX;
276 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
277 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
279 if (mp->server_event_queue_address)
281 session->vpp_evt_q = uword_to_pointer (mp->client_event_queue_address,
283 session->our_evt_q = uword_to_pointer (mp->server_event_queue_address,
285 vcl_wait_for_memory (session->vpp_evt_q);
286 rx_fifo->master_session_index = session->session_index;
287 tx_fifo->master_session_index = session->session_index;
288 rx_fifo->master_thread_index = vcl_get_worker_index ();
289 tx_fifo->master_thread_index = vcl_get_worker_index ();
290 vec_validate (wrk->vpp_event_queues, 0);
291 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
292 wrk->vpp_event_queues[0] = evt_q;
296 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
298 rx_fifo->client_session_index = session->session_index;
299 tx_fifo->client_session_index = session->session_index;
300 rx_fifo->client_thread_index = vcl_get_worker_index ();
301 tx_fifo->client_thread_index = vcl_get_worker_index ();
302 vpp_wrk_index = tx_fifo->master_thread_index;
303 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
304 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
307 session->vpp_handle = mp->handle;
308 session->client_context = mp->context;
309 session->rx_fifo = rx_fifo;
310 session->tx_fifo = tx_fifo;
312 session->session_state = STATE_ACCEPT;
313 session->transport.rmt_port = mp->port;
314 session->transport.is_ip4 = mp->is_ip4;
315 clib_memcpy (&session->transport.rmt_ip, mp->ip, sizeof (ip46_address_t));
317 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
318 session->transport.lcl_port = listen_session->transport.lcl_port;
319 session->transport.lcl_ip = listen_session->transport.lcl_ip;
320 session->session_type = listen_session->session_type;
321 session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
323 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s"
324 " address %U port %d queue %p!", getpid (), mp->handle,
325 session->session_index,
326 mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip,
327 mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
328 clib_net_to_host_u16 (mp->port), session->vpp_evt_q);
329 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
331 return session->session_index;
335 vcl_session_connected_handler (vcl_worker_t * wrk,
336 session_connected_msg_t * mp)
338 u32 session_index, vpp_wrk_index;
339 svm_fifo_t *rx_fifo, *tx_fifo;
340 vcl_session_t *session = 0;
343 session_index = mp->context;
344 session = vcl_session_get (wrk, session_index);
347 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
348 "Invalid session index (%u)!",
349 getpid (), mp->handle, session_index);
350 return VCL_INVALID_SESSION_INDEX;
354 clib_warning ("VCL<%d>: ERROR: sid %u: connect failed! %U", getpid (),
355 session_index, format_api_error, ntohl (mp->retval));
356 session->session_state = STATE_FAILED;
357 session->vpp_handle = mp->handle;
358 return session_index;
361 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
362 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
363 vcl_wait_for_memory (rx_fifo);
364 rx_fifo->client_session_index = session_index;
365 tx_fifo->client_session_index = session_index;
366 rx_fifo->client_thread_index = vcl_get_worker_index ();
367 tx_fifo->client_thread_index = vcl_get_worker_index ();
369 if (mp->client_event_queue_address)
371 session->vpp_evt_q = uword_to_pointer (mp->server_event_queue_address,
373 session->our_evt_q = uword_to_pointer (mp->client_event_queue_address,
376 vec_validate (wrk->vpp_event_queues, 0);
377 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
378 wrk->vpp_event_queues[0] = evt_q;
382 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
384 vpp_wrk_index = tx_fifo->master_thread_index;
385 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
386 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
389 session->rx_fifo = rx_fifo;
390 session->tx_fifo = tx_fifo;
391 session->vpp_handle = mp->handle;
392 session->transport.is_ip4 = mp->is_ip4;
393 clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip,
394 sizeof (session->transport.lcl_ip));
395 session->transport.lcl_port = mp->lcl_port;
396 session->session_state = STATE_CONNECT;
398 /* Add it to lookup table */
399 hash_set (wrk->session_index_by_vpp_handles, mp->handle, session_index);
401 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! "
402 "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d",
403 getpid (), mp->handle, session_index, session->rx_fifo,
404 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
406 return session_index;
410 vcl_session_reset_handler (vcl_worker_t * wrk,
411 session_reset_msg_t * reset_msg)
413 vcl_session_t *session;
416 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
417 session = vcl_session_get (wrk, sid);
420 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
421 return VCL_INVALID_SESSION_INDEX;
423 session->session_state = STATE_CLOSE_ON_EMPTY;
424 VDBG (0, "reset handle 0x%llx, sid %u ", reset_msg->handle, sid);
425 vcl_send_session_reset_reply (vcl_session_vpp_evt_q (wrk, session),
426 vcm->my_client_index, reset_msg->handle, 0);
431 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
433 vcl_session_t *session;
434 u32 sid = mp->context;
436 session = vcl_session_get (wrk, sid);
439 VDBG (0, "VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: bind failed: %U",
440 getpid (), mp->handle, sid, format_api_error, ntohl (mp->retval));
443 session->session_state = STATE_FAILED;
444 session->vpp_handle = mp->handle;
449 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
450 "Invalid session index (%u)!",
451 getpid (), mp->handle, sid);
452 return VCL_INVALID_SESSION_INDEX;
456 session->vpp_handle = mp->handle;
457 session->transport.is_ip4 = mp->lcl_is_ip4;
458 clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip,
459 sizeof (ip46_address_t));
460 session->transport.lcl_port = mp->lcl_port;
461 vcl_session_table_add_listener (wrk, mp->handle, sid);
462 session->session_state = STATE_LISTEN;
464 if (session->is_dgram)
466 svm_fifo_t *rx_fifo, *tx_fifo;
467 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
468 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
469 rx_fifo->client_session_index = sid;
470 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
471 tx_fifo->client_session_index = sid;
472 session->rx_fifo = rx_fifo;
473 session->tx_fifo = tx_fifo;
476 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: bind succeeded!",
477 getpid (), mp->handle, sid);
482 vcl_handle_mq_ctrl_event (vcl_worker_t * wrk, session_event_t * e)
484 session_accepted_msg_t *accepted_msg;
485 session_disconnected_msg_t *disconnected_msg;
486 vcl_session_msg_t *vcl_msg;
487 vcl_session_t *session;
491 switch (e->event_type)
493 case FIFO_EVENT_APP_RX:
494 clib_warning ("unhandled rx: sid %u (0x%x)",
495 e->fifo->client_session_index,
496 e->fifo->client_session_index);
498 case SESSION_CTRL_EVT_ACCEPTED:
499 accepted_msg = (session_accepted_msg_t *) e->data;
500 handle = accepted_msg->listener_handle;
501 session = vcl_session_table_lookup_listener (wrk, handle);
504 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
505 "listener handle %llx", getpid (), handle);
509 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
510 vcl_msg->accepted_msg = *accepted_msg;
512 case SESSION_CTRL_EVT_CONNECTED:
513 vcl_session_connected_handler (wrk,
514 (session_connected_msg_t *) e->data);
516 case SESSION_CTRL_EVT_DISCONNECTED:
517 disconnected_msg = (session_disconnected_msg_t *) e->data;
518 sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
519 session = vcl_session_get (wrk, sid);
522 VDBG (0, "request to disconnect unknown handle 0x%llx",
523 disconnected_msg->handle);
526 session->session_state = STATE_DISCONNECT;
527 VDBG (0, "disconnected handle 0xllx, sid %u", disconnected_msg->handle,
530 case SESSION_CTRL_EVT_RESET:
531 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
533 case SESSION_CTRL_EVT_BOUND:
534 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
537 clib_warning ("unhandled %u", e->event_type);
543 vppcom_wait_for_session_state_change (u32 session_index,
544 session_state_t state,
547 vcl_worker_t *wrk = vcl_worker_get_current ();
548 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
549 vcl_session_t *volatile session;
555 session = vcl_session_get (wrk, session_index);
556 if (PREDICT_FALSE (!session))
558 return VPPCOM_EBADFD;
560 if (session->session_state & state)
564 if (session->session_state & STATE_FAILED)
566 return VPPCOM_ECONNREFUSED;
569 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
571 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
572 vcl_handle_mq_ctrl_event (wrk, e);
573 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
575 while (clib_time_now (&wrk->clib_time) < timeout);
577 VDBG (0, "VCL<%d>: timeout waiting for state 0x%x (%s)", getpid (), state,
578 vppcom_session_state_str (state));
579 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
581 return VPPCOM_ETIMEDOUT;
585 vppcom_app_session_enable (void)
589 if (vcm->app_state != STATE_APP_ENABLED)
591 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
592 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
593 if (PREDICT_FALSE (rv))
595 VDBG (0, "VCL<%d>: application session enable timed out! "
596 "returning %d (%s)", getpid (), rv, vppcom_retval_str (rv));
604 vppcom_app_attach (void)
608 vppcom_app_send_attach ();
609 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
610 if (PREDICT_FALSE (rv))
612 VDBG (0, "VCL<%d>: application attach timed out! returning %d (%s)",
613 getpid (), rv, vppcom_retval_str (rv));
621 vppcom_session_unbind (u32 session_handle)
623 vcl_worker_t *wrk = vcl_worker_get_current ();
624 vcl_session_t *session = 0;
627 session = vcl_session_get_w_handle (wrk, session_handle);
629 return VPPCOM_EBADFD;
631 vpp_handle = session->vpp_handle;
632 vcl_session_table_del_listener (wrk, vpp_handle);
633 session->vpp_handle = ~0;
634 session->session_state = STATE_DISCONNECT;
636 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending unbind msg! new state"
637 " 0x%x (%s)", getpid (), vpp_handle, session_handle, STATE_DISCONNECT,
638 vppcom_session_state_str (STATE_DISCONNECT));
639 vcl_evt (VCL_EVT_UNBIND, session);
640 vppcom_send_unbind_sock (vpp_handle);
646 vppcom_session_disconnect (u32 session_handle)
648 vcl_worker_t *wrk = vcl_worker_get_current ();
649 svm_msg_q_t *vpp_evt_q;
650 vcl_session_t *session;
651 session_state_t state;
654 session = vcl_session_get_w_handle (wrk, session_handle);
656 return VPPCOM_EBADFD;
658 vpp_handle = session->vpp_handle;
659 state = session->session_state;
661 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (),
662 vpp_handle, session_handle, state, vppcom_session_state_str (state));
664 if (PREDICT_FALSE (state & STATE_LISTEN))
666 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
667 "Cannot disconnect a listen socket!",
668 getpid (), vpp_handle, session_handle);
669 return VPPCOM_EBADFD;
672 if (state & STATE_CLOSE_ON_EMPTY)
674 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
675 vcl_send_session_disconnected_reply (vpp_evt_q, vcm->my_client_index,
677 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect "
678 "REPLY...", getpid (), vpp_handle, session_handle);
682 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...",
683 getpid (), vpp_handle, session_handle);
684 vppcom_send_disconnect_session (vpp_handle);
691 * VPPCOM Public API functions
694 vppcom_app_create (char *app_name)
696 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
702 vppcom_cfg (&vcm->cfg);
705 vcm->main_cpu = pthread_self ();
706 vppcom_init_error_string_table ();
707 svm_fifo_segment_main_init (vcl_cfg->segment_baseva,
708 20 /* timeout in secs */ );
709 pool_init_fixed (vcm->workers, vcl_cfg->max_workers);
710 clib_spinlock_init (&vcm->workers_lock);
711 vcl_worker_alloc_and_init ();
714 if (vcm->my_client_index == ~0)
716 /* API hookup and connect to VPP */
717 vppcom_api_hookup ();
719 vcm->app_state = STATE_APP_START;
720 rv = vppcom_connect_to_vpp (app_name);
723 clib_warning ("VCL<%d>: ERROR: couldn't connect to VPP!",
728 VDBG (0, "VCL<%d>: sending session enable", getpid ());
729 rv = vppcom_app_session_enable ();
732 clib_warning ("VCL<%d>: ERROR: vppcom_app_session_enable() "
733 "failed!", getpid ());
737 VDBG (0, "VCL<%d>: sending app attach", getpid ());
738 rv = vppcom_app_attach ();
741 clib_warning ("VCL<%d>: ERROR: vppcom_app_attach() failed!",
746 VDBG (0, "VCL<%d>: app_name '%s', my_client_index %d (0x%x)",
747 getpid (), app_name, vcm->my_client_index, vcm->my_client_index);
754 vppcom_app_destroy (void)
757 f64 orig_app_timeout;
759 if (vcm->my_client_index == ~0)
762 VDBG (0, "VCL<%d>: detaching from VPP, my_client_index %d (0x%x)",
763 getpid (), vcm->my_client_index, vcm->my_client_index);
764 vcl_evt (VCL_EVT_DETACH, vcm);
766 vppcom_app_send_detach ();
767 orig_app_timeout = vcm->cfg.app_timeout;
768 vcm->cfg.app_timeout = 2.0;
769 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
770 vcm->cfg.app_timeout = orig_app_timeout;
771 if (PREDICT_FALSE (rv))
772 VDBG (0, "VCL<%d>: application detach timed out! returning %d (%s)",
773 getpid (), rv, vppcom_retval_str (rv));
776 vl_client_disconnect_from_vlib ();
777 vcm->my_client_index = ~0;
778 vcm->app_state = STATE_APP_START;
782 vppcom_session_create (u8 proto, u8 is_nonblocking)
784 vcl_worker_t *wrk = vcl_worker_get_current ();
785 vcl_session_t *session;
787 session = vcl_session_alloc (wrk);
789 session->session_type = proto;
790 session->session_state = STATE_START;
791 session->vpp_handle = ~0;
792 session->is_dgram = proto == VPPCOM_PROTO_UDP;
795 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
797 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
798 is_nonblocking, session_index);
800 VDBG (0, "VCL<%d>: sid %u", getpid (), session->session_index);
802 return vcl_session_handle (session);
806 vppcom_session_close (uint32_t session_handle)
808 vcl_worker_t *wrk = vcl_worker_get_current ();
809 vcl_session_t *session = 0;
810 u8 is_vep, is_vep_session;
811 session_state_t state;
816 session = vcl_session_get_w_handle (wrk, session_handle);
818 return VPPCOM_EBADFD;
820 is_vep = session->is_vep;
821 is_vep_session = session->is_vep_session;
822 next_sh = session->vep.next_sh;
823 vep_sh = session->vep.vep_sh;
824 state = session->session_state;
825 vpp_handle = session->vpp_handle;
827 if (VPPCOM_DEBUG > 0)
830 clib_warning ("VCL<%d>: vep_idx %u / sid %u: "
831 "closing epoll session...",
832 getpid (), session_handle, session_handle);
834 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %d: "
835 "closing session...",
836 getpid (), vpp_handle, session_handle);
841 while (next_sh != ~0)
843 rv = vppcom_epoll_ctl (session_handle, EPOLL_CTL_DEL, next_sh, 0);
844 if (PREDICT_FALSE (rv < 0))
845 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
846 "vep_idx %u failed! rv %d (%s)",
847 getpid (), vpp_handle, next_sh, vep_sh,
848 rv, vppcom_retval_str (rv));
850 next_sh = session->vep.next_sh;
857 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, session_handle, 0);
859 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL "
860 "vep_idx %u failed! rv %d (%s)",
861 getpid (), vpp_handle, session_handle,
862 vep_sh, rv, vppcom_retval_str (rv));
865 if (state & STATE_LISTEN)
867 rv = vppcom_session_unbind (session_handle);
868 if (PREDICT_FALSE (rv < 0))
869 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: listener unbind "
870 "failed! rv %d (%s)",
871 getpid (), vpp_handle, session_handle,
872 rv, vppcom_retval_str (rv));
874 else if (state & STATE_OPEN)
876 rv = vppcom_session_disconnect (session_handle);
877 if (PREDICT_FALSE (rv < 0))
878 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
879 "session disconnect failed! rv %d (%s)",
880 getpid (), vpp_handle, session_handle,
881 rv, vppcom_retval_str (rv));
885 if (vcl_session_is_ct (session))
887 vcl_cut_through_registration_t *ctr;
890 mq_addr = pointer_to_uword (session->our_evt_q);
891 ctr = vcl_ct_registration_lock_and_lookup (wrk, mq_addr);
893 if (ctr->epoll_evt_conn_index != ~0)
894 vcl_mq_epoll_del_evfd (wrk, ctr->epoll_evt_conn_index);
895 VDBG (0, "Removing ct registration %u",
896 vcl_ct_registration_index (wrk, ctr));
897 vcl_ct_registration_del (wrk, ctr);
898 vcl_ct_registration_lookup_del (wrk, mq_addr);
899 vcl_ct_registration_unlock (wrk);
902 if (vpp_handle != ~0)
904 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
906 vcl_session_free (wrk, session);
908 if (VPPCOM_DEBUG > 0)
911 clib_warning ("VCL<%d>: vep_idx %u / sid %u: epoll session removed.",
912 getpid (), session_handle, session_handle);
914 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: session removed.",
915 getpid (), vpp_handle, session_handle);
918 vcl_evt (VCL_EVT_CLOSE, session, rv);
924 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
926 vcl_worker_t *wrk = vcl_worker_get_current ();
927 vcl_session_t *session = 0;
930 return VPPCOM_EINVAL;
932 session = vcl_session_get_w_handle (wrk, session_handle);
934 return VPPCOM_EBADFD;
938 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
939 "bind to an epoll session!", getpid (), session_handle);
940 return VPPCOM_EBADFD;
943 session->transport.is_ip4 = ep->is_ip4;
945 clib_memcpy (&session->transport.lcl_ip.ip4, ep->ip,
946 sizeof (ip4_address_t));
948 clib_memcpy (&session->transport.lcl_ip.ip6, ep->ip,
949 sizeof (ip6_address_t));
950 session->transport.lcl_port = ep->port;
952 VDBG (0, "VCL<%d>: sid %u: binding to local %s address %U port %u, "
953 "proto %s", getpid (), session_handle,
954 session->transport.is_ip4 ? "IPv4" : "IPv6",
955 format_ip46_address, &session->transport.lcl_ip,
956 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
957 clib_net_to_host_u16 (session->transport.lcl_port),
958 session->session_type ? "UDP" : "TCP");
959 vcl_evt (VCL_EVT_BIND, session);
961 if (session->session_type == VPPCOM_PROTO_UDP)
962 vppcom_session_listen (session_handle, 10);
968 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
970 vcl_worker_t *wrk = vcl_worker_get_current ();
971 vcl_session_t *listen_session = 0;
972 u64 listen_vpp_handle;
975 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
977 return VPPCOM_EBADFD;
979 if (q_len == 0 || q_len == ~0)
980 q_len = vcm->cfg.listen_queue_size;
982 if (listen_session->is_vep)
984 clib_warning ("VCL<%d>: ERROR: sid %u: cannot listen on an "
985 "epoll session!", getpid (), listen_sh);
986 return VPPCOM_EBADFD;
989 listen_vpp_handle = listen_session->vpp_handle;
990 if (listen_session->session_state & STATE_LISTEN)
992 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: already in listen state!",
993 getpid (), listen_vpp_handle, listen_sh);
997 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: sending VPP bind+listen "
998 "request...", getpid (), listen_vpp_handle, listen_sh);
1001 * Send listen request to vpp and wait for reply
1003 vppcom_send_bind_sock (listen_session);
1004 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1006 vcm->cfg.session_timeout);
1008 if (PREDICT_FALSE (rv))
1010 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1011 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: bind+listen failed! "
1012 "returning %d (%s)", getpid (), listen_session->vpp_handle,
1013 listen_sh, rv, vppcom_retval_str (rv));
1021 validate_args_session_accept_ (vcl_worker_t * wrk,
1022 vcl_session_t * listen_session)
1024 /* Input validation - expects spinlock on sessions_lockp */
1025 if (listen_session->is_vep)
1027 clib_warning ("VCL<%d>: ERROR: sid %u: cannot accept on an "
1028 "epoll session!", getpid (),
1029 listen_session->session_index);
1030 return VPPCOM_EBADFD;
1033 if (listen_session->session_state != STATE_LISTEN)
1035 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1036 "not in listen state! state 0x%x (%s)", getpid (),
1037 listen_session->vpp_handle, listen_session->session_index,
1038 listen_session->session_state,
1039 vppcom_session_state_str (listen_session->session_state));
1040 return VPPCOM_EBADFD;
1046 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1049 u32 client_session_index = ~0, listen_session_index;
1050 vcl_worker_t *wrk = vcl_worker_get_current ();
1051 session_accepted_msg_t accepted_msg;
1052 vcl_session_t *listen_session = 0;
1053 vcl_session_t *client_session = 0;
1054 svm_msg_q_t *vpp_evt_q;
1055 vcl_session_msg_t *evt;
1056 u64 listen_vpp_handle;
1057 svm_msg_q_msg_t msg;
1062 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1063 if (!listen_session)
1064 return VPPCOM_EBADFD;
1066 listen_session_index = listen_session->session_index;
1067 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1070 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1072 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1073 accepted_msg = evt->accepted_msg;
1077 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1078 VCL_SESS_ATTR_NONBLOCK);
1079 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1080 return VPPCOM_EAGAIN;
1084 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1085 return VPPCOM_EAGAIN;
1087 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1088 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1090 clib_warning ("discarded event: %u", e->event_type);
1091 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1094 clib_memcpy (&accepted_msg, e->data, sizeof (accepted_msg));
1095 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1101 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg);
1102 listen_session = vcl_session_get (wrk, listen_session_index);
1103 client_session = vcl_session_get (wrk, client_session_index);
1105 if (flags & O_NONBLOCK)
1106 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1108 listen_vpp_handle = listen_session->vpp_handle;
1109 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: Got a client request! "
1110 "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u",
1111 getpid (), listen_vpp_handle, listen_session_handle,
1112 client_session->vpp_handle, client_session_index,
1113 flags, VCL_SESS_ATTR_TEST (client_session->attr,
1114 VCL_SESS_ATTR_NONBLOCK));
1118 ep->is_ip4 = client_session->transport.is_ip4;
1119 ep->port = client_session->transport.rmt_port;
1120 if (client_session->transport.is_ip4)
1121 clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip4,
1122 sizeof (ip4_address_t));
1124 clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip6,
1125 sizeof (ip6_address_t));
1128 if (accepted_msg.server_event_queue_address)
1129 vpp_evt_q = uword_to_pointer (accepted_msg.vpp_event_queue_address,
1132 vpp_evt_q = client_session->vpp_evt_q;
1134 vcl_send_session_accepted_reply (vpp_evt_q, client_session->client_context,
1135 client_session->vpp_handle, 0);
1137 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: accepted vpp handle 0x%llx, "
1138 "sid %u connection from peer %s address %U port %u to local %s "
1139 "address %U port %u", getpid (), listen_vpp_handle,
1140 listen_session_handle, client_session->vpp_handle,
1141 client_session_index,
1142 client_session->transport.is_ip4 ? "IPv4" : "IPv6",
1143 format_ip46_address, &client_session->transport.rmt_ip,
1144 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1145 clib_net_to_host_u16 (client_session->transport.rmt_port),
1146 client_session->transport.is_ip4 ? "IPv4" : "IPv6",
1147 format_ip46_address, &client_session->transport.lcl_ip,
1148 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1149 clib_net_to_host_u16 (client_session->transport.lcl_port));
1150 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1151 client_session_index);
1153 return vcl_session_handle (client_session);
1157 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1159 vcl_worker_t *wrk = vcl_worker_get_current ();
1160 vcl_session_t *session = 0;
1164 session = vcl_session_get_w_handle (wrk, session_handle);
1166 return VPPCOM_EBADFD;
1167 session_index = session->session_index;
1169 if (PREDICT_FALSE (session->is_vep))
1171 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1172 "connect on an epoll session!", getpid (),
1174 return VPPCOM_EBADFD;
1177 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1179 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: session already "
1180 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1181 getpid (), session->vpp_handle, session_handle,
1182 session->transport.is_ip4 ? "IPv4" : "IPv6",
1183 format_ip46_address,
1184 &session->transport.rmt_ip, session->transport.is_ip4 ?
1185 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1186 clib_net_to_host_u16 (session->transport.rmt_port),
1187 session->session_type ? "UDP" : "TCP", session->session_state,
1188 vppcom_session_state_str (session->session_state));
1192 session->transport.is_ip4 = server_ep->is_ip4;
1193 if (session->transport.is_ip4)
1194 clib_memcpy (&session->transport.rmt_ip.ip4, server_ep->ip,
1195 sizeof (ip4_address_t));
1197 clib_memcpy (&session->transport.rmt_ip.ip6, server_ep->ip,
1198 sizeof (ip6_address_t));
1199 session->transport.rmt_port = server_ep->port;
1201 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connecting to server %s %U "
1203 getpid (), session->vpp_handle, session_handle,
1204 session->transport.is_ip4 ? "IPv4" : "IPv6",
1205 format_ip46_address,
1206 &session->transport.rmt_ip, session->transport.is_ip4 ?
1207 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1208 clib_net_to_host_u16 (session->transport.rmt_port),
1209 session->session_type ? "UDP" : "TCP");
1212 * Send connect request and wait for reply from vpp
1214 vppcom_send_connect_sock (session);
1215 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1216 vcm->cfg.session_timeout);
1218 session = vcl_session_get (wrk, session_index);
1220 if (PREDICT_FALSE (rv))
1222 if (VPPCOM_DEBUG > 0)
1225 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: connect "
1226 "failed! returning %d (%s)", getpid (),
1227 session->vpp_handle, session_handle, rv,
1228 vppcom_retval_str (rv));
1230 clib_warning ("VCL<%d>: no session for sid %u: connect failed! "
1231 "returning %d (%s)", getpid (),
1232 session_handle, rv, vppcom_retval_str (rv));
1236 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connected!",
1237 getpid (), session->vpp_handle, session_handle);
1243 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1246 return (e->event_type == FIFO_EVENT_APP_RX
1247 && e->fifo->client_session_index == sid);
1249 return (e->event_type == SESSION_IO_EVT_CT_TX);
1253 vcl_session_is_readable (vcl_session_t * s)
1255 return ((s->session_state & STATE_OPEN)
1256 || (s->session_state == STATE_LISTEN
1257 && s->session_type == VPPCOM_PROTO_UDP));
1261 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1264 vcl_worker_t *wrk = vcl_worker_get_current ();
1265 int n_read = 0, rv, is_nonblocking;
1266 vcl_session_t *s = 0;
1267 svm_fifo_t *rx_fifo;
1268 svm_msg_q_msg_t msg;
1273 if (PREDICT_FALSE (!buf))
1274 return VPPCOM_EINVAL;
1276 s = vcl_session_get_w_handle (wrk, session_handle);
1277 if (PREDICT_FALSE (!s))
1278 return VPPCOM_EBADFD;
1280 if (PREDICT_FALSE (s->is_vep))
1282 clib_warning ("VCL<%d>: ERROR: sid %u: cannot "
1283 "read from an epoll session!", getpid (), session_handle);
1284 return VPPCOM_EBADFD;
1287 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1288 rx_fifo = s->rx_fifo;
1290 if (PREDICT_FALSE (!vcl_session_is_readable (s)))
1292 session_state_t state = s->session_state;
1293 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1295 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: %s session is not open! "
1296 "state 0x%x (%s), returning %d (%s)",
1297 getpid (), s->vpp_handle, session_handle, state,
1298 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1302 is_ct = vcl_session_is_ct (s);
1303 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1305 if (svm_fifo_is_empty (rx_fifo))
1309 svm_fifo_unset_event (rx_fifo);
1312 while (svm_fifo_is_empty (rx_fifo))
1314 svm_fifo_unset_event (rx_fifo);
1315 svm_msg_q_lock (mq);
1316 if (svm_msg_q_is_empty (mq))
1317 svm_msg_q_wait (mq);
1319 svm_msg_q_sub_w_lock (mq, &msg);
1320 e = svm_msg_q_msg_data (mq, &msg);
1321 svm_msg_q_unlock (mq);
1322 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1324 vcl_handle_mq_ctrl_event (wrk, e);
1325 svm_msg_q_free_msg (mq, &msg);
1328 svm_msg_q_free_msg (mq, &msg);
1330 if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY))
1336 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1338 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1340 if (svm_fifo_is_empty (rx_fifo))
1341 svm_fifo_unset_event (rx_fifo);
1343 if (is_ct && n_read + svm_fifo_max_dequeue (rx_fifo) == rx_fifo->nitems)
1345 /* If the peer is not polling send notification */
1346 if (!svm_fifo_has_event (s->rx_fifo))
1347 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo,
1348 SESSION_IO_EVT_CT_RX, SVM_Q_WAIT);
1351 if (VPPCOM_DEBUG > 2)
1354 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes "
1355 "from (%p)", getpid (), s->vpp_handle,
1356 session_handle, n_read, rx_fifo);
1358 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: nothing read! "
1359 "returning %d (%s)", getpid (), s->vpp_handle,
1360 session_handle, n_read, vppcom_retval_str (n_read));
1366 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1368 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1372 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1374 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1378 vppcom_session_read_ready (vcl_session_t * session)
1380 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1381 if (PREDICT_FALSE (session->is_vep))
1383 clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an "
1384 "epoll session!", getpid (), session->session_index);
1385 return VPPCOM_EBADFD;
1388 if (PREDICT_FALSE (!(session->session_state & (STATE_OPEN | STATE_LISTEN))))
1390 session_state_t state = session->session_state;
1393 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1395 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!"
1396 " state 0x%x (%s), returning %d (%s)", getpid (),
1397 session->vpp_handle, session->session_index, state,
1398 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1402 if (session->session_state & STATE_LISTEN)
1403 return clib_fifo_elts (session->accept_evts_fifo);
1405 return svm_fifo_max_dequeue (session->rx_fifo);
1409 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1412 return (e->event_type == FIFO_EVENT_APP_TX
1413 && e->fifo->client_session_index == sid);
1415 return (e->event_type == SESSION_IO_EVT_CT_RX);
1419 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1421 vcl_worker_t *wrk = vcl_worker_get_current ();
1422 int rv, n_write, is_nonblocking;
1423 vcl_session_t *s = 0;
1424 svm_fifo_t *tx_fifo = 0;
1425 session_evt_type_t et;
1426 svm_msg_q_msg_t msg;
1430 if (PREDICT_FALSE (!buf))
1431 return VPPCOM_EINVAL;
1433 s = vcl_session_get_w_handle (wrk, session_handle);
1434 if (PREDICT_FALSE (!s))
1435 return VPPCOM_EBADFD;
1437 tx_fifo = s->tx_fifo;
1438 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1440 if (PREDICT_FALSE (s->is_vep))
1442 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1443 "cannot write to an epoll session!",
1444 getpid (), s->vpp_handle, session_handle);
1446 return VPPCOM_EBADFD;
1449 if (!(s->session_state & STATE_OPEN))
1451 session_state_t state = s->session_state;
1452 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1453 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! "
1455 getpid (), s->vpp_handle, session_handle,
1456 state, vppcom_session_state_str (state));
1460 mq = vcl_session_is_ct (s) ? s->our_evt_q : wrk->app_event_queue;
1461 if (svm_fifo_is_full (tx_fifo))
1465 return VPPCOM_EWOULDBLOCK;
1467 while (svm_fifo_is_full (tx_fifo))
1469 svm_msg_q_lock (mq);
1470 while (svm_msg_q_is_empty (mq) && svm_msg_q_timedwait (mq, 10e-6))
1472 svm_msg_q_sub_w_lock (mq, &msg);
1473 e = svm_msg_q_msg_data (mq, &msg);
1474 svm_msg_q_unlock (mq);
1476 if (!vcl_is_tx_evt_for_session (e, s->session_index,
1478 vcl_handle_mq_ctrl_event (wrk, e);
1479 svm_msg_q_free_msg (mq, &msg);
1483 ASSERT (FIFO_EVENT_APP_TX + 1 == SESSION_IO_EVT_CT_TX);
1484 et = FIFO_EVENT_APP_TX + vcl_session_is_ct (s);
1486 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1487 s->vpp_evt_q, buf, n, et, SVM_Q_WAIT);
1489 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1492 ASSERT (n_write > 0);
1494 if (VPPCOM_DEBUG > 2)
1497 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
1498 "FIFO-FULL (%p)", getpid (), s->vpp_handle,
1499 session_handle, tx_fifo);
1501 clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: "
1502 "wrote %d bytes tx-fifo: (%p)", getpid (),
1503 s->vpp_handle, session_handle, n_write, tx_fifo);
1508 static vcl_session_t *
1509 vcl_ct_session_get_from_fifo (vcl_worker_t * wrk, svm_fifo_t * f, u8 type)
1512 s = vcl_session_get (wrk, f->client_session_index);
1516 if (type == 0 && s->rx_fifo == f)
1519 if (type == 1 && s->tx_fifo == f)
1522 s = vcl_session_get (wrk, f->master_session_index);
1525 if (type == 0 && s->rx_fifo == f)
1527 if (type == 1 && s->tx_fifo == f)
1534 vppcom_session_write_ready (vcl_session_t * session)
1536 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1537 if (PREDICT_FALSE (session->is_vep))
1539 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1540 "cannot write to an epoll session!",
1541 getpid (), session->vpp_handle, session->session_index);
1542 return VPPCOM_EBADFD;
1545 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1547 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1548 "cannot write to a listen session!",
1549 getpid (), session->vpp_handle, session->session_index);
1550 return VPPCOM_EBADFD;
1553 if (PREDICT_FALSE (!(session->session_state & STATE_OPEN)))
1555 session_state_t state = session->session_state;
1558 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1559 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1560 "session is not open! state 0x%x (%s), "
1561 "returning %d (%s)", getpid (), session->vpp_handle,
1562 session->session_index,
1563 state, vppcom_session_state_str (state),
1564 rv, vppcom_retval_str (rv));
1568 VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d",
1569 getpid (), session->vpp_handle, session->session_index,
1570 session->tx_fifo, svm_fifo_max_enqueue (session->tx_fifo));
1572 return svm_fifo_max_enqueue (session->tx_fifo);
1576 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq)
1578 svm_msg_q_msg_t *msg;
1582 n_msgs = svm_msg_q_size (mq);
1583 for (i = 0; i < n_msgs; i++)
1585 vec_add2 (wrk->mq_msg_vector, msg, 1);
1586 svm_msg_q_sub_w_lock (mq, msg);
1591 #define vcl_fifo_rx_evt_valid_or_break(_fifo) \
1592 if (PREDICT_FALSE (svm_fifo_is_empty (_fifo))) \
1594 svm_fifo_unset_event (_fifo); \
1595 if (svm_fifo_is_empty (_fifo)) \
1600 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1601 unsigned long n_bits, unsigned long *read_map,
1602 unsigned long *write_map, unsigned long *except_map,
1603 double time_to_wait, u32 * bits_set)
1605 session_disconnected_msg_t *disconnected_msg;
1606 session_connected_msg_t *connected_msg;
1607 session_accepted_msg_t *accepted_msg;
1608 vcl_session_msg_t *vcl_msg;
1609 vcl_session_t *session;
1610 svm_msg_q_msg_t *msg;
1615 svm_msg_q_lock (mq);
1616 if (svm_msg_q_is_empty (mq))
1620 svm_msg_q_unlock (mq);
1626 svm_msg_q_unlock (mq);
1629 else if (time_to_wait < 0)
1631 svm_msg_q_wait (mq);
1635 if (svm_msg_q_timedwait (mq, time_to_wait))
1637 svm_msg_q_unlock (mq);
1642 vcl_mq_dequeue_batch (wrk, mq);
1643 svm_msg_q_unlock (mq);
1645 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1647 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1648 e = svm_msg_q_msg_data (mq, msg);
1649 switch (e->event_type)
1651 case FIFO_EVENT_APP_RX:
1652 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1653 sid = e->fifo->client_session_index;
1654 session = vcl_session_get (wrk, sid);
1657 if (sid < n_bits && read_map)
1659 clib_bitmap_set_no_check (read_map, sid, 1);
1663 case FIFO_EVENT_APP_TX:
1664 sid = e->fifo->client_session_index;
1665 session = vcl_session_get (wrk, sid);
1668 if (sid < n_bits && write_map)
1670 clib_bitmap_set_no_check (write_map, sid, 1);
1674 case SESSION_IO_EVT_CT_TX:
1675 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1676 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
1679 sid = session->session_index;
1680 if (sid < n_bits && read_map)
1682 clib_bitmap_set_no_check (read_map, sid, 1);
1686 case SESSION_IO_EVT_CT_RX:
1687 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
1690 sid = session->session_index;
1691 if (sid < n_bits && write_map)
1693 clib_bitmap_set_no_check (write_map, sid, 1);
1697 case SESSION_CTRL_EVT_ACCEPTED:
1698 accepted_msg = (session_accepted_msg_t *) e->data;
1699 handle = accepted_msg->listener_handle;
1700 session = vcl_session_table_lookup_listener (wrk, handle);
1703 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
1704 "listener handle %llx", getpid (), handle);
1708 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
1709 vcl_msg->accepted_msg = *accepted_msg;
1710 sid = session->session_index;
1711 if (sid < n_bits && read_map)
1713 clib_bitmap_set_no_check (read_map, sid, 1);
1717 case SESSION_CTRL_EVT_CONNECTED:
1718 connected_msg = (session_connected_msg_t *) e->data;
1719 vcl_session_connected_handler (wrk, connected_msg);
1721 case SESSION_CTRL_EVT_DISCONNECTED:
1722 disconnected_msg = (session_disconnected_msg_t *) e->data;
1723 sid = vcl_session_index_from_vpp_handle (wrk,
1724 disconnected_msg->handle);
1725 if (sid < n_bits && except_map)
1727 clib_bitmap_set_no_check (except_map, sid, 1);
1731 case SESSION_CTRL_EVT_RESET:
1732 sid = vcl_session_reset_handler (wrk,
1733 (session_reset_msg_t *) e->data);
1734 if (sid < n_bits && except_map)
1736 clib_bitmap_set_no_check (except_map, sid, 1);
1741 clib_warning ("unhandled: %u", e->event_type);
1744 svm_msg_q_free_msg (mq, msg);
1747 vec_reset_length (wrk->mq_msg_vector);
1752 vppcom_select_condvar (vcl_worker_t * wrk, unsigned long n_bits,
1753 unsigned long *read_map, unsigned long *write_map,
1754 unsigned long *except_map, double time_to_wait,
1757 double total_wait = 0, wait_slice;
1758 vcl_cut_through_registration_t *cr;
1760 time_to_wait = (time_to_wait == -1) ? 10e9 : time_to_wait;
1761 wait_slice = wrk->cut_through_registrations ? 10e-6 : time_to_wait;
1764 vcl_ct_registration_lock (wrk);
1766 pool_foreach (cr, wrk->cut_through_registrations, ({
1767 vcl_select_handle_mq (wrk, cr->mq, n_bits, read_map, write_map, except_map,
1771 vcl_ct_registration_unlock (wrk);
1773 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1774 write_map, except_map, time_to_wait, bits_set);
1775 total_wait += wait_slice;
1779 while (total_wait < time_to_wait);
1785 vppcom_select_eventfd (vcl_worker_t * wrk, unsigned long n_bits,
1786 unsigned long *read_map, unsigned long *write_map,
1787 unsigned long *except_map, double time_to_wait,
1790 vcl_mq_evt_conn_t *mqc;
1791 int __clib_unused n_read;
1795 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1796 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1797 vec_len (wrk->mq_events), time_to_wait);
1798 for (i = 0; i < n_mq_evts; i++)
1800 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1801 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1802 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1803 except_map, 0, bits_set);
1806 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1810 vppcom_select (unsigned long n_bits, unsigned long *read_map,
1811 unsigned long *write_map, unsigned long *except_map,
1812 double time_to_wait)
1814 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1815 vcl_worker_t *wrk = vcl_worker_get_current ();
1816 vcl_session_t *session = 0;
1819 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
1821 if (n_bits && read_map)
1823 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1824 clib_memcpy (wrk->rd_bitmap, read_map,
1825 vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
1826 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
1828 if (n_bits && write_map)
1830 clib_bitmap_validate (wrk->wr_bitmap, minbits);
1831 clib_memcpy (wrk->wr_bitmap, write_map,
1832 vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
1833 memset (write_map, 0,
1834 vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
1836 if (n_bits && except_map)
1838 clib_bitmap_validate (wrk->ex_bitmap, minbits);
1839 clib_memcpy (wrk->ex_bitmap, except_map,
1840 vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
1841 memset (except_map, 0,
1842 vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
1852 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
1853 if (!(session = vcl_session_get (wrk, sid)))
1855 VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
1857 return VPPCOM_EBADFD;
1860 rv = svm_fifo_is_full (session->tx_fifo);
1863 clib_bitmap_set_no_check (write_map, sid, 1);
1872 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
1873 if (!(session = vcl_session_get (wrk, sid)))
1875 VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
1877 return VPPCOM_EBADFD;
1880 rv = vppcom_session_read_ready (session);
1883 clib_bitmap_set_no_check (read_map, sid, 1);
1891 if (vcm->cfg.use_mq_eventfd)
1892 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
1893 time_to_wait, &bits_set);
1895 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
1896 time_to_wait, &bits_set);
1902 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
1904 vcl_session_t *session;
1905 vppcom_epoll_t *vep;
1908 if (VPPCOM_DEBUG <= 1)
1911 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1912 session = vcl_session_get (wrk, vep_idx);
1913 if (PREDICT_FALSE (!session))
1915 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
1916 getpid (), vep_idx);
1919 if (PREDICT_FALSE (!session->is_vep))
1921 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
1922 getpid (), vep_idx);
1925 vep = &session->vep;
1926 clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n"
1929 " is_vep_session = %u\n"
1930 " next_sid = 0x%x (%u)\n"
1931 " wait_cont_idx = 0x%x (%u)\n"
1932 "}\n", getpid (), vep_idx,
1933 session->is_vep, session->is_vep_session,
1934 vep->next_sh, vep->next_sh,
1935 session->wait_cont_idx, session->wait_cont_idx);
1937 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
1939 session = vcl_session_get (wrk, sid);
1940 if (PREDICT_FALSE (!session))
1942 clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
1945 if (PREDICT_FALSE (session->is_vep))
1946 clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!",
1947 getpid (), vep_idx);
1948 else if (PREDICT_FALSE (!session->is_vep_session))
1950 clib_warning ("VCL<%d>: ERROR: session (%u) "
1951 "is not a vep session!", getpid (), sid);
1954 vep = &session->vep;
1955 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
1956 clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
1957 "vep_idx (%u)!", getpid (),
1958 sid, session->vep.vep_sh, vep_idx);
1959 if (session->is_vep_session)
1961 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
1963 " next_sid = 0x%x (%u)\n"
1964 " prev_sid = 0x%x (%u)\n"
1965 " vep_idx = 0x%x (%u)\n"
1966 " ev.events = 0x%x\n"
1967 " ev.data.u64 = 0x%llx\n"
1971 vep->next_sh, vep->next_sh,
1972 vep->prev_sh, vep->prev_sh,
1973 vep->vep_sh, vep->vep_sh,
1974 vep->ev.events, vep->ev.data.u64, vep->et_mask);
1979 clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n",
1980 getpid (), vep_idx);
1984 vppcom_epoll_create (void)
1986 vcl_worker_t *wrk = vcl_worker_get_current ();
1987 vcl_session_t *vep_session;
1989 vep_session = vcl_session_alloc (wrk);
1991 vep_session->is_vep = 1;
1992 vep_session->vep.vep_sh = ~0;
1993 vep_session->vep.next_sh = ~0;
1994 vep_session->vep.prev_sh = ~0;
1995 vep_session->wait_cont_idx = ~0;
1996 vep_session->vpp_handle = ~0;
1998 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_sh);
1999 VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!",
2000 getpid (), vep_session->session_index, vep_session->session_index);
2002 return vcl_session_handle (vep_session);
2006 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2007 struct epoll_event *event)
2009 vcl_worker_t *wrk = vcl_worker_get_current ();
2010 vcl_session_t *vep_session;
2011 vcl_session_t *session;
2014 if (vep_handle == session_handle)
2016 clib_warning ("VCL<%d>: ERROR: vep_idx == session_index (%u)!",
2017 getpid (), vep_handle);
2018 return VPPCOM_EINVAL;
2021 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2022 if (PREDICT_FALSE (!vep_session))
2024 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_handle);
2025 return VPPCOM_EBADFD;
2027 if (PREDICT_FALSE (!vep_session->is_vep))
2029 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2030 getpid (), vep_handle);
2031 return VPPCOM_EINVAL;
2034 ASSERT (vep_session->vep.vep_sh == ~0);
2035 ASSERT (vep_session->vep.prev_sh == ~0);
2037 session = vcl_session_get_w_handle (wrk, session_handle);
2038 if (PREDICT_FALSE (!session))
2040 VDBG (0, "VCL<%d>: ERROR: Invalid session_handle (%u)!",
2041 getpid (), session_handle);
2042 return VPPCOM_EBADFD;
2044 if (PREDICT_FALSE (session->is_vep))
2046 clib_warning ("ERROR: session_handle (%u) is a vep!", vep_handle);
2047 return VPPCOM_EINVAL;
2053 if (PREDICT_FALSE (!event))
2055 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: NULL pointer to "
2056 "epoll_event structure!", getpid ());
2057 return VPPCOM_EINVAL;
2059 if (vep_session->vep.next_sh != ~0)
2061 vcl_session_t *next_session;
2062 next_session = vcl_session_get_w_handle (wrk,
2063 vep_session->vep.next_sh);
2064 if (PREDICT_FALSE (!next_session))
2066 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid "
2067 "vep.next_sid (%u) on vep_idx (%u)!",
2068 getpid (), vep_session->vep.next_sh, vep_handle);
2069 return VPPCOM_EBADFD;
2071 ASSERT (next_session->vep.prev_sh == vep_handle);
2072 next_session->vep.prev_sh = session_handle;
2074 session->vep.next_sh = vep_session->vep.next_sh;
2075 session->vep.prev_sh = vep_handle;
2076 session->vep.vep_sh = vep_handle;
2077 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2078 session->vep.ev = *event;
2079 session->is_vep = 0;
2080 session->is_vep_session = 1;
2081 vep_session->vep.next_sh = session_handle;
2083 VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x, "
2084 "data 0x%llx!", getpid (), vep_handle, session_handle,
2085 event->events, event->data.u64);
2086 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2090 if (PREDICT_FALSE (!event))
2092 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_MOD: NULL pointer to "
2093 "epoll_event structure!", getpid ());
2097 else if (PREDICT_FALSE (!session->is_vep_session))
2099 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2100 "not a vep session!", getpid (), session_handle);
2104 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2106 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2107 "vep_idx (%u) != vep_idx (%u)!",
2108 getpid (), session_handle,
2109 session->vep.vep_sh, vep_handle);
2113 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2114 session->vep.ev = *event;
2115 VDBG (1, "VCL<%d>: EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
2116 " data 0x%llx!", getpid (), vep_handle, session_handle,
2117 event->events, event->data.u64);
2121 if (PREDICT_FALSE (!session->is_vep_session))
2123 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2124 "not a vep session!", getpid (), session_handle);
2128 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2130 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2131 "vep_idx (%u) != vep_idx (%u)!",
2132 getpid (), session_handle,
2133 session->vep.vep_sh, vep_handle);
2138 vep_session->wait_cont_idx =
2139 (vep_session->wait_cont_idx == session_handle) ?
2140 session->vep.next_sh : vep_session->wait_cont_idx;
2142 if (session->vep.prev_sh == vep_handle)
2143 vep_session->vep.next_sh = session->vep.next_sh;
2146 vcl_session_t *prev_session;
2147 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2148 if (PREDICT_FALSE (!prev_session))
2150 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2151 "vep.prev_sid (%u) on sid (%u)!",
2152 getpid (), session->vep.prev_sh, session_handle);
2153 return VPPCOM_EBADFD;
2155 ASSERT (prev_session->vep.next_sh == session_handle);
2156 prev_session->vep.next_sh = session->vep.next_sh;
2158 if (session->vep.next_sh != ~0)
2160 vcl_session_t *next_session;
2161 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2162 if (PREDICT_FALSE (!next_session))
2164 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2165 "vep.next_sid (%u) on sid (%u)!",
2166 getpid (), session->vep.next_sh, session_handle);
2167 return VPPCOM_EBADFD;
2169 ASSERT (next_session->vep.prev_sh == session_handle);
2170 next_session->vep.prev_sh = session->vep.prev_sh;
2173 memset (&session->vep, 0, sizeof (session->vep));
2174 session->vep.next_sh = ~0;
2175 session->vep.prev_sh = ~0;
2176 session->vep.vep_sh = ~0;
2177 session->is_vep_session = 0;
2178 VDBG (1, "VCL<%d>: EPOLL_CTL_DEL: vep_idx %u, sid %u!",
2179 getpid (), vep_handle, session_handle);
2180 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2184 clib_warning ("VCL<%d>: ERROR: Invalid operation (%d)!", getpid (), op);
2188 vep_verify_epoll_chain (wrk, vep_handle);
2195 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2196 struct epoll_event *events, u32 maxevents,
2197 double wait_for_time, u32 * num_ev)
2199 session_disconnected_msg_t *disconnected_msg;
2200 session_connected_msg_t *connected_msg;
2201 session_accepted_msg_t *accepted_msg;
2202 u64 session_evt_data = ~0, handle;
2203 u32 sid = ~0, session_events;
2204 vcl_session_msg_t *vcl_msg;
2205 vcl_session_t *session;
2206 svm_msg_q_msg_t *msg;
2211 svm_msg_q_lock (mq);
2212 if (svm_msg_q_is_empty (mq))
2216 svm_msg_q_unlock (mq);
2219 else if (wait_for_time < 0)
2221 svm_msg_q_wait (mq);
2225 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2227 svm_msg_q_unlock (mq);
2232 vcl_mq_dequeue_batch (wrk, mq);
2233 svm_msg_q_unlock (mq);
2235 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2237 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2238 e = svm_msg_q_msg_data (mq, msg);
2240 switch (e->event_type)
2242 case FIFO_EVENT_APP_RX:
2243 ASSERT (e->fifo->client_thread_index == vcl_get_worker_index ());
2244 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2245 sid = e->fifo->client_session_index;
2246 session = vcl_session_get (wrk, sid);
2247 session_events = session->vep.ev.events;
2248 if (!(EPOLLIN & session->vep.ev.events))
2251 events[*num_ev].events |= EPOLLIN;
2252 session_evt_data = session->vep.ev.data.u64;
2254 case FIFO_EVENT_APP_TX:
2255 sid = e->fifo->client_session_index;
2256 session = vcl_session_get (wrk, sid);
2257 session_events = session->vep.ev.events;
2258 if (!(EPOLLOUT & session_events))
2261 events[*num_ev].events |= EPOLLOUT;
2262 session_evt_data = session->vep.ev.data.u64;
2264 case SESSION_IO_EVT_CT_TX:
2265 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2266 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
2267 sid = session->session_index;
2268 session_events = session->vep.ev.events;
2269 if (!(EPOLLIN & session->vep.ev.events))
2272 events[*num_ev].events |= EPOLLIN;
2273 session_evt_data = session->vep.ev.data.u64;
2275 case SESSION_IO_EVT_CT_RX:
2276 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
2277 sid = session->session_index;
2278 session_events = session->vep.ev.events;
2279 if (!(EPOLLOUT & session_events))
2282 events[*num_ev].events |= EPOLLOUT;
2283 session_evt_data = session->vep.ev.data.u64;
2285 case SESSION_CTRL_EVT_ACCEPTED:
2286 accepted_msg = (session_accepted_msg_t *) e->data;
2287 handle = accepted_msg->listener_handle;
2288 session = vcl_session_table_lookup_listener (wrk, handle);
2291 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
2292 "listener handle %llx", getpid (), handle);
2296 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
2297 vcl_msg->accepted_msg = *accepted_msg;
2298 session_events = session->vep.ev.events;
2299 if (!(EPOLLIN & session_events))
2303 events[*num_ev].events |= EPOLLIN;
2304 session_evt_data = session->vep.ev.data.u64;
2306 case SESSION_CTRL_EVT_CONNECTED:
2307 connected_msg = (session_connected_msg_t *) e->data;
2308 vcl_session_connected_handler (wrk, connected_msg);
2309 /* Generate EPOLLOUT because there's no connected event */
2310 sid = vcl_session_index_from_vpp_handle (wrk,
2311 connected_msg->handle);
2312 session = vcl_session_get (wrk, sid);
2313 session_events = session->vep.ev.events;
2314 if (EPOLLOUT & session_events)
2317 events[*num_ev].events |= EPOLLOUT;
2318 session_evt_data = session->vep.ev.data.u64;
2321 case SESSION_CTRL_EVT_DISCONNECTED:
2322 disconnected_msg = (session_disconnected_msg_t *) e->data;
2323 sid = vcl_session_index_from_vpp_handle (wrk,
2324 disconnected_msg->handle);
2325 if (!(session = vcl_session_get (wrk, sid)))
2328 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2329 session_evt_data = session->vep.ev.data.u64;
2330 session_events = session->vep.ev.events;
2332 case SESSION_CTRL_EVT_RESET:
2333 sid = vcl_session_reset_handler (wrk,
2334 (session_reset_msg_t *) e->data);
2335 if (!(session = vcl_session_get (wrk, sid)))
2338 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2339 session_evt_data = session->vep.ev.data.u64;
2340 session_events = session->vep.ev.events;
2343 VDBG (0, "unhandled: %u", e->event_type);
2344 svm_msg_q_free_msg (mq, msg);
2347 svm_msg_q_free_msg (mq, msg);
2351 events[*num_ev].data.u64 = session_evt_data;
2352 if (EPOLLONESHOT & session_events)
2354 session = vcl_session_get (wrk, sid);
2355 session->vep.ev.events = 0;
2358 if (*num_ev == maxevents)
2363 vec_reset_length (wrk->mq_msg_vector);
2368 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2369 int maxevents, double wait_for_time)
2371 vcl_cut_through_registration_t *cr;
2372 double total_wait = 0, wait_slice;
2376 wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time;
2377 wait_slice = wrk->cut_through_registrations ? 10e-6 : wait_for_time;
2381 vcl_ct_registration_lock (wrk);
2383 pool_foreach (cr, wrk->cut_through_registrations, ({
2384 vcl_epoll_wait_handle_mq (wrk, cr->mq, events, maxevents, 0, &num_ev);
2387 vcl_ct_registration_unlock (wrk);
2389 rv = vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events,
2390 maxevents, num_ev ? 0 : wait_slice,
2393 total_wait += wait_slice;
2397 while (total_wait < wait_for_time);
2398 return (int) num_ev;
2402 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2403 int maxevents, double wait_for_time)
2405 vcl_mq_evt_conn_t *mqc;
2406 int __clib_unused n_read;
2411 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2412 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2413 vec_len (wrk->mq_events), wait_for_time);
2414 for (i = 0; i < n_mq_evts; i++)
2416 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2417 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2418 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2421 return (int) n_evts;
2425 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2426 int maxevents, double wait_for_time)
2428 vcl_worker_t *wrk = vcl_worker_get_current ();
2429 vcl_session_t *vep_session;
2431 if (PREDICT_FALSE (maxevents <= 0))
2433 clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
2434 getpid (), maxevents);
2435 return VPPCOM_EINVAL;
2438 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2440 return VPPCOM_EBADFD;
2442 if (PREDICT_FALSE (!vep_session->is_vep))
2444 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2445 getpid (), vep_handle);
2446 return VPPCOM_EINVAL;
2449 memset (events, 0, sizeof (*events) * maxevents);
2451 if (vcm->cfg.use_mq_eventfd)
2452 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, wait_for_time);
2454 return vppcom_epoll_wait_condvar (wrk, events, maxevents, wait_for_time);
2458 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2459 void *buffer, uint32_t * buflen)
2461 vcl_worker_t *wrk = vcl_worker_get_current ();
2462 vcl_session_t *session;
2464 u32 *flags = buffer;
2465 vppcom_endpt_t *ep = buffer;
2467 session = vcl_session_get_w_handle (wrk, session_handle);
2469 return VPPCOM_EBADFD;
2473 case VPPCOM_ATTR_GET_NREAD:
2474 rv = vppcom_session_read_ready (session);
2475 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d",
2479 case VPPCOM_ATTR_GET_NWRITE:
2480 rv = vppcom_session_write_ready (session);
2481 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
2482 getpid (), session_handle, rv);
2485 case VPPCOM_ATTR_GET_FLAGS:
2486 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2488 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2489 VCL_SESS_ATTR_NONBLOCK));
2490 *buflen = sizeof (*flags);
2491 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
2492 "is_nonblocking = %u", getpid (),
2493 session_handle, *flags,
2494 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2500 case VPPCOM_ATTR_SET_FLAGS:
2501 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2503 if (*flags & O_NONBLOCK)
2504 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2506 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2508 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
2509 " is_nonblocking = %u",
2510 getpid (), session_handle, *flags,
2511 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2517 case VPPCOM_ATTR_GET_PEER_ADDR:
2518 if (PREDICT_TRUE (buffer && buflen &&
2519 (*buflen >= sizeof (*ep)) && ep->ip))
2521 ep->is_ip4 = session->transport.is_ip4;
2522 ep->port = session->transport.rmt_port;
2523 if (session->transport.is_ip4)
2524 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
2525 sizeof (ip4_address_t));
2527 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
2528 sizeof (ip6_address_t));
2529 *buflen = sizeof (*ep);
2530 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
2531 "addr = %U, port %u", getpid (),
2532 session_handle, ep->is_ip4, format_ip46_address,
2533 &session->transport.rmt_ip,
2534 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2535 clib_net_to_host_u16 (ep->port));
2541 case VPPCOM_ATTR_GET_LCL_ADDR:
2542 if (PREDICT_TRUE (buffer && buflen &&
2543 (*buflen >= sizeof (*ep)) && ep->ip))
2545 ep->is_ip4 = session->transport.is_ip4;
2546 ep->port = session->transport.lcl_port;
2547 if (session->transport.is_ip4)
2548 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip4,
2549 sizeof (ip4_address_t));
2551 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip6,
2552 sizeof (ip6_address_t));
2553 *buflen = sizeof (*ep);
2554 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
2555 " addr = %U port %d", getpid (),
2556 session_handle, ep->is_ip4, format_ip46_address,
2557 &session->transport.lcl_ip,
2558 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2559 clib_net_to_host_u16 (ep->port));
2565 case VPPCOM_ATTR_GET_LIBC_EPFD:
2566 rv = session->libc_epfd;
2567 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
2571 case VPPCOM_ATTR_SET_LIBC_EPFD:
2572 if (PREDICT_TRUE (buffer && buflen &&
2573 (*buflen == sizeof (session->libc_epfd))))
2575 session->libc_epfd = *(int *) buffer;
2576 *buflen = sizeof (session->libc_epfd);
2578 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, "
2579 "buflen %d", getpid (), session->libc_epfd, *buflen);
2585 case VPPCOM_ATTR_GET_PROTOCOL:
2586 if (buffer && buflen && (*buflen >= sizeof (int)))
2588 *(int *) buffer = session->session_type;
2589 *buflen = sizeof (int);
2591 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2592 getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP",
2599 case VPPCOM_ATTR_GET_LISTEN:
2600 if (buffer && buflen && (*buflen >= sizeof (int)))
2602 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2603 VCL_SESS_ATTR_LISTEN);
2604 *buflen = sizeof (int);
2606 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d",
2607 getpid (), *(int *) buffer, *buflen);
2613 case VPPCOM_ATTR_GET_ERROR:
2614 if (buffer && buflen && (*buflen >= sizeof (int)))
2616 *(int *) buffer = 0;
2617 *buflen = sizeof (int);
2619 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2620 getpid (), *(int *) buffer, *buflen);
2626 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2627 if (buffer && buflen && (*buflen >= sizeof (u32)))
2631 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2632 session->tx_fifo ? session->tx_fifo->nitems :
2633 vcm->cfg.tx_fifo_size);
2634 *buflen = sizeof (u32);
2636 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
2637 "buflen %d, #VPP-TBD#", getpid (),
2638 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2644 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2645 if (buffer && buflen && (*buflen == sizeof (u32)))
2648 session->sndbuf_size = *(u32 *) buffer;
2649 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), "
2650 "buflen %d, #VPP-TBD#", getpid (),
2651 session->sndbuf_size, session->sndbuf_size, *buflen);
2657 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2658 if (buffer && buflen && (*buflen >= sizeof (u32)))
2662 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2663 session->rx_fifo ? session->rx_fifo->nitems :
2664 vcm->cfg.rx_fifo_size);
2665 *buflen = sizeof (u32);
2667 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
2668 "buflen %d, #VPP-TBD#", getpid (),
2669 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2675 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2676 if (buffer && buflen && (*buflen == sizeof (u32)))
2679 session->rcvbuf_size = *(u32 *) buffer;
2680 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), "
2681 "buflen %d, #VPP-TBD#", getpid (),
2682 session->sndbuf_size, session->sndbuf_size, *buflen);
2688 case VPPCOM_ATTR_GET_REUSEADDR:
2689 if (buffer && buflen && (*buflen >= sizeof (int)))
2692 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2693 VCL_SESS_ATTR_REUSEADDR);
2694 *buflen = sizeof (int);
2696 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
2697 "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2703 case VPPCOM_ATTR_SET_REUSEADDR:
2704 if (buffer && buflen && (*buflen == sizeof (int)) &&
2705 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2708 if (*(int *) buffer)
2709 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2711 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2713 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d,"
2714 " #VPP-TBD#", getpid (),
2715 VCL_SESS_ATTR_TEST (session->attr,
2716 VCL_SESS_ATTR_REUSEADDR), *buflen);
2722 case VPPCOM_ATTR_GET_REUSEPORT:
2723 if (buffer && buflen && (*buflen >= sizeof (int)))
2726 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2727 VCL_SESS_ATTR_REUSEPORT);
2728 *buflen = sizeof (int);
2730 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d,"
2731 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2737 case VPPCOM_ATTR_SET_REUSEPORT:
2738 if (buffer && buflen && (*buflen == sizeof (int)) &&
2739 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2742 if (*(int *) buffer)
2743 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2745 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2747 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d,"
2748 " #VPP-TBD#", getpid (),
2749 VCL_SESS_ATTR_TEST (session->attr,
2750 VCL_SESS_ATTR_REUSEPORT), *buflen);
2756 case VPPCOM_ATTR_GET_BROADCAST:
2757 if (buffer && buflen && (*buflen >= sizeof (int)))
2760 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2761 VCL_SESS_ATTR_BROADCAST);
2762 *buflen = sizeof (int);
2764 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d,"
2765 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2771 case VPPCOM_ATTR_SET_BROADCAST:
2772 if (buffer && buflen && (*buflen == sizeof (int)))
2775 if (*(int *) buffer)
2776 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2778 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2780 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, "
2781 "#VPP-TBD#", getpid (),
2782 VCL_SESS_ATTR_TEST (session->attr,
2783 VCL_SESS_ATTR_BROADCAST), *buflen);
2789 case VPPCOM_ATTR_GET_V6ONLY:
2790 if (buffer && buflen && (*buflen >= sizeof (int)))
2793 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2794 VCL_SESS_ATTR_V6ONLY);
2795 *buflen = sizeof (int);
2797 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, "
2798 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2804 case VPPCOM_ATTR_SET_V6ONLY:
2805 if (buffer && buflen && (*buflen == sizeof (int)))
2808 if (*(int *) buffer)
2809 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2811 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2813 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, "
2814 "#VPP-TBD#", getpid (),
2815 VCL_SESS_ATTR_TEST (session->attr,
2816 VCL_SESS_ATTR_V6ONLY), *buflen);
2822 case VPPCOM_ATTR_GET_KEEPALIVE:
2823 if (buffer && buflen && (*buflen >= sizeof (int)))
2826 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2827 VCL_SESS_ATTR_KEEPALIVE);
2828 *buflen = sizeof (int);
2830 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, "
2831 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2837 case VPPCOM_ATTR_SET_KEEPALIVE:
2838 if (buffer && buflen && (*buflen == sizeof (int)))
2841 if (*(int *) buffer)
2842 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2844 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2846 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, "
2847 "#VPP-TBD#", getpid (),
2848 VCL_SESS_ATTR_TEST (session->attr,
2849 VCL_SESS_ATTR_KEEPALIVE), *buflen);
2855 case VPPCOM_ATTR_GET_TCP_NODELAY:
2856 if (buffer && buflen && (*buflen >= sizeof (int)))
2859 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2860 VCL_SESS_ATTR_TCP_NODELAY);
2861 *buflen = sizeof (int);
2863 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, "
2864 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2870 case VPPCOM_ATTR_SET_TCP_NODELAY:
2871 if (buffer && buflen && (*buflen == sizeof (int)))
2874 if (*(int *) buffer)
2875 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
2877 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
2879 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, "
2880 "#VPP-TBD#", getpid (),
2881 VCL_SESS_ATTR_TEST (session->attr,
2882 VCL_SESS_ATTR_TCP_NODELAY), *buflen);
2888 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
2889 if (buffer && buflen && (*buflen >= sizeof (int)))
2892 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2893 VCL_SESS_ATTR_TCP_KEEPIDLE);
2894 *buflen = sizeof (int);
2896 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, "
2897 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2903 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
2904 if (buffer && buflen && (*buflen == sizeof (int)))
2907 if (*(int *) buffer)
2908 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
2910 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
2912 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, "
2913 "#VPP-TBD#", getpid (),
2914 VCL_SESS_ATTR_TEST (session->attr,
2915 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
2921 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
2922 if (buffer && buflen && (*buflen >= sizeof (int)))
2925 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2926 VCL_SESS_ATTR_TCP_KEEPINTVL);
2927 *buflen = sizeof (int);
2929 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, "
2930 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2936 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
2937 if (buffer && buflen && (*buflen == sizeof (int)))
2940 if (*(int *) buffer)
2941 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
2943 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
2945 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, "
2946 "#VPP-TBD#", getpid (),
2947 VCL_SESS_ATTR_TEST (session->attr,
2948 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
2954 case VPPCOM_ATTR_GET_TCP_USER_MSS:
2955 if (buffer && buflen && (*buflen >= sizeof (u32)))
2958 *(u32 *) buffer = session->user_mss;
2959 *buflen = sizeof (int);
2961 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d,"
2962 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2968 case VPPCOM_ATTR_SET_TCP_USER_MSS:
2969 if (buffer && buflen && (*buflen == sizeof (u32)))
2972 session->user_mss = *(u32 *) buffer;
2974 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, "
2975 "#VPP-TBD#", getpid (), session->user_mss, *buflen);
2990 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
2991 uint32_t buflen, int flags, vppcom_endpt_t * ep)
2993 vcl_worker_t *wrk = vcl_worker_get_current ();
2995 vcl_session_t *session = 0;
2999 session = vcl_session_get_w_handle (wrk, session_handle);
3000 if (PREDICT_FALSE (!session))
3002 VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
3003 getpid (), session_handle);
3004 return VPPCOM_EBADFD;
3006 ep->is_ip4 = session->transport.is_ip4;
3007 ep->port = session->transport.rmt_port;
3011 rv = vppcom_session_read (session_handle, buffer, buflen);
3012 else if (flags & MSG_PEEK)
3013 rv = vppcom_session_peek (session_handle, buffer, buflen);
3016 clib_warning ("VCL<%d>: Unsupport flags for recvfrom %d",
3018 return VPPCOM_EAFNOSUPPORT;
3023 if (session->transport.is_ip4)
3024 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
3025 sizeof (ip4_address_t));
3027 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
3028 sizeof (ip6_address_t));
3035 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3036 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3039 return VPPCOM_EINVAL;
3044 return VPPCOM_EINVAL;
3049 // TBD check the flags and do the right thing
3050 VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.",
3051 getpid (), flags, flags);
3054 return (vppcom_session_write (session_handle, buffer, buflen));
3058 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3060 vcl_worker_t *wrk = vcl_worker_get_current ();
3061 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3062 u32 i, keep_trying = 1;
3065 VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
3066 getpid (), vp, n_sids, wait_for_time);
3069 return VPPCOM_EFAULT;
3073 vcl_session_t *session;
3075 for (i = 0; i < n_sids; i++)
3077 ASSERT (vp[i].revents);
3079 session = vcl_session_get (wrk, vp[i].sid);
3086 if (POLLIN & vp[i].events)
3088 rv = vppcom_session_read_ready (session);
3091 *vp[i].revents |= POLLIN;
3098 case VPPCOM_ECONNRESET:
3099 *vp[i].revents = POLLHUP;
3103 *vp[i].revents = POLLERR;
3110 if (POLLOUT & vp[i].events)
3112 rv = vppcom_session_write_ready (session);
3115 *vp[i].revents |= POLLOUT;
3122 case VPPCOM_ECONNRESET:
3123 *vp[i].revents = POLLHUP;
3127 *vp[i].revents = POLLERR;
3134 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3136 *vp[i].revents = POLLNVAL;
3140 if (wait_for_time != -1)
3141 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3143 while ((num_ev == 0) && keep_trying);
3145 if (VPPCOM_DEBUG > 3)
3147 clib_warning ("VCL<%d>: returning %d", getpid (), num_ev);
3148 for (i = 0; i < n_sids; i++)
3150 clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
3151 ".revents 0x%x", getpid (), i, vp[i].sid, vp[i].sid,
3152 vp[i].events, *vp[i].revents);
3159 vppcom_mq_epoll_fd (void)
3161 vcl_worker_t *wrk = vcl_worker_get_current ();
3162 return wrk->mqs_epfd;
3166 vppcom_session_index (uint32_t session_handle)
3168 return session_handle & 0xFFFFFF;
3172 vppcom_worker_register (void)
3174 if (vcl_worker_alloc_and_init ())
3176 return VPPCOM_EEXIST;
3180 * fd.io coding-style-patch-verification: ON
3183 * eval: (c-set-style "gnu")