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;
28 sigsegv_signal (int signum)
34 vcl_wait_for_memory (void *mem)
36 u8 __clib_unused test;
37 if (vcm->mounting_segment)
39 while (vcm->mounting_segment)
48 if (signal (SIGSEGV, sigsegv_signal))
64 signal (SIGSEGV, SIG_DFL);
68 vppcom_session_state_str (session_state_t state)
90 case STATE_CLOSE_ON_EMPTY:
91 st = "STATE_CLOSE_ON_EMPTY";
94 case STATE_DISCONNECT:
95 st = "STATE_DISCONNECT";
103 st = "UNKNOWN_STATE";
111 format_ip4_address (u8 * s, va_list * args)
113 u8 *a = va_arg (*args, u8 *);
114 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
118 format_ip6_address (u8 * s, va_list * args)
120 ip6_address_t *a = va_arg (*args, ip6_address_t *);
121 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
123 i_max_n_zero = ARRAY_LEN (a->as_u16);
125 i_first_zero = i_max_n_zero;
127 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
129 u32 is_zero = a->as_u16[i] == 0;
130 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
136 if ((!is_zero && n_zeros > max_n_zeros)
137 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
139 i_max_n_zero = i_first_zero;
140 max_n_zeros = n_zeros;
141 i_first_zero = ARRAY_LEN (a->as_u16);
146 last_double_colon = 0;
147 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
149 if (i == i_max_n_zero && max_n_zeros > 1)
151 s = format (s, "::");
152 i += max_n_zeros - 1;
153 last_double_colon = 1;
157 s = format (s, "%s%x",
158 (last_double_colon || i == 0) ? "" : ":",
159 clib_net_to_host_u16 (a->as_u16[i]));
160 last_double_colon = 0;
167 /* Format an IP46 address. */
169 format_ip46_address (u8 * s, va_list * args)
171 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
172 ip46_type_t type = va_arg (*args, ip46_type_t);
178 is_ip4 = ip46_address_is_ip4 (ip46);
189 format (s, "%U", format_ip4_address, &ip46->ip4) :
190 format (s, "%U", format_ip6_address, &ip46->ip6);
194 * VPPCOM Utility Functions
199 vcl_session_vpp_evt_q (vcl_worker_t * wrk, vcl_session_t * s)
201 if (vcl_session_is_ct (s))
202 return wrk->vpp_event_queues[0];
204 return wrk->vpp_event_queues[s->tx_fifo->master_thread_index];
208 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
209 session_handle_t handle, int retval)
211 app_session_evt_t _app_evt, *app_evt = &_app_evt;
212 session_accepted_reply_msg_t *rmp;
213 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
214 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
215 rmp->handle = handle;
216 rmp->context = context;
217 rmp->retval = retval;
218 app_send_ctrl_evt_to_vpp (mq, app_evt);
222 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
223 session_handle_t handle, int retval)
225 app_session_evt_t _app_evt, *app_evt = &_app_evt;
226 session_disconnected_reply_msg_t *rmp;
227 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
228 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
229 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
230 rmp->handle = handle;
231 rmp->context = context;
232 rmp->retval = retval;
233 app_send_ctrl_evt_to_vpp (mq, app_evt);
237 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
238 session_handle_t handle, int retval)
240 app_session_evt_t _app_evt, *app_evt = &_app_evt;
241 session_reset_reply_msg_t *rmp;
242 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
243 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
244 rmp->handle = handle;
245 rmp->context = context;
246 rmp->retval = retval;
247 app_send_ctrl_evt_to_vpp (mq, app_evt);
251 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp)
253 vcl_session_t *session, *listen_session;
254 svm_fifo_t *rx_fifo, *tx_fifo;
258 session = vcl_session_alloc (wrk);
260 listen_session = vcl_session_table_lookup_listener (wrk,
261 mp->listener_handle);
265 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
266 clib_warning ("VCL<%d>: ERROR: couldn't find listen session: "
267 "unknown vpp listener handle %llx",
268 getpid (), mp->listener_handle);
269 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
270 VNET_API_ERROR_INVALID_ARGUMENT);
271 vcl_session_free (wrk, session);
272 return VCL_INVALID_SESSION_INDEX;
275 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
276 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
278 if (mp->server_event_queue_address)
280 session->vpp_evt_q = uword_to_pointer (mp->client_event_queue_address,
282 session->our_evt_q = uword_to_pointer (mp->server_event_queue_address,
284 vcl_wait_for_memory (session->vpp_evt_q);
285 rx_fifo->master_session_index = session->session_index;
286 tx_fifo->master_session_index = session->session_index;
287 rx_fifo->master_thread_index = vcl_get_worker_index ();
288 tx_fifo->master_thread_index = vcl_get_worker_index ();
289 vec_validate (wrk->vpp_event_queues, 0);
290 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
291 wrk->vpp_event_queues[0] = evt_q;
295 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
297 rx_fifo->client_session_index = session->session_index;
298 tx_fifo->client_session_index = session->session_index;
299 rx_fifo->client_thread_index = vcl_get_worker_index ();
300 tx_fifo->client_thread_index = vcl_get_worker_index ();
301 vpp_wrk_index = tx_fifo->master_thread_index;
302 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
303 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
306 session->vpp_handle = mp->handle;
307 session->client_context = mp->context;
308 session->rx_fifo = rx_fifo;
309 session->tx_fifo = tx_fifo;
311 session->session_state = STATE_ACCEPT;
312 session->transport.rmt_port = mp->port;
313 session->transport.is_ip4 = mp->is_ip4;
314 clib_memcpy (&session->transport.rmt_ip, mp->ip, sizeof (ip46_address_t));
316 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
317 session->transport.lcl_port = listen_session->transport.lcl_port;
318 session->transport.lcl_ip = listen_session->transport.lcl_ip;
319 session->session_type = listen_session->session_type;
320 session->is_dgram = session->session_type == VPPCOM_PROTO_UDP;
322 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s"
323 " address %U port %d queue %p!", getpid (), mp->handle,
324 session->session_index,
325 mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip,
326 mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
327 clib_net_to_host_u16 (mp->port), session->vpp_evt_q);
328 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
330 return session->session_index;
334 vcl_session_connected_handler (vcl_worker_t * wrk,
335 session_connected_msg_t * mp)
337 u32 session_index, vpp_wrk_index;
338 svm_fifo_t *rx_fifo, *tx_fifo;
339 vcl_session_t *session = 0;
342 session_index = mp->context;
343 session = vcl_session_get (wrk, session_index);
346 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
347 "Invalid session index (%u)!",
348 getpid (), mp->handle, session_index);
349 return VCL_INVALID_SESSION_INDEX;
353 clib_warning ("VCL<%d>: ERROR: sid %u: connect failed! %U", getpid (),
354 session_index, format_api_error, ntohl (mp->retval));
355 session->session_state = STATE_FAILED;
356 session->vpp_handle = mp->handle;
357 return session_index;
360 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
361 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
362 vcl_wait_for_memory (rx_fifo);
363 rx_fifo->client_session_index = session_index;
364 tx_fifo->client_session_index = session_index;
365 rx_fifo->client_thread_index = vcl_get_worker_index ();
366 tx_fifo->client_thread_index = vcl_get_worker_index ();
368 if (mp->client_event_queue_address)
370 session->vpp_evt_q = uword_to_pointer (mp->server_event_queue_address,
372 session->our_evt_q = uword_to_pointer (mp->client_event_queue_address,
375 vec_validate (wrk->vpp_event_queues, 0);
376 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
377 wrk->vpp_event_queues[0] = evt_q;
381 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
383 vpp_wrk_index = tx_fifo->master_thread_index;
384 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
385 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
388 session->rx_fifo = rx_fifo;
389 session->tx_fifo = tx_fifo;
390 session->vpp_handle = mp->handle;
391 session->transport.is_ip4 = mp->is_ip4;
392 clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip,
393 sizeof (session->transport.lcl_ip));
394 session->transport.lcl_port = mp->lcl_port;
395 session->session_state = STATE_CONNECT;
397 /* Add it to lookup table */
398 hash_set (wrk->session_index_by_vpp_handles, mp->handle, session_index);
400 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! "
401 "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d",
402 getpid (), mp->handle, session_index, session->rx_fifo,
403 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
405 return session_index;
409 vcl_session_reset_handler (vcl_worker_t * wrk,
410 session_reset_msg_t * reset_msg)
412 vcl_session_t *session;
415 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
416 session = vcl_session_get (wrk, sid);
419 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
420 return VCL_INVALID_SESSION_INDEX;
422 session->session_state = STATE_CLOSE_ON_EMPTY;
423 VDBG (0, "reset handle 0x%llx, sid %u ", reset_msg->handle, sid);
424 vcl_send_session_reset_reply (vcl_session_vpp_evt_q (wrk, session),
425 vcm->my_client_index, reset_msg->handle, 0);
430 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
432 vcl_session_t *session;
433 u32 sid = mp->context;
435 session = vcl_session_get (wrk, sid);
438 VDBG (0, "VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: bind failed: %U",
439 getpid (), mp->handle, sid, format_api_error, ntohl (mp->retval));
442 session->session_state = STATE_FAILED;
443 session->vpp_handle = mp->handle;
448 clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: "
449 "Invalid session index (%u)!",
450 getpid (), mp->handle, sid);
451 return VCL_INVALID_SESSION_INDEX;
455 session->vpp_handle = mp->handle;
456 session->transport.is_ip4 = mp->lcl_is_ip4;
457 clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip,
458 sizeof (ip46_address_t));
459 session->transport.lcl_port = mp->lcl_port;
460 vcl_session_table_add_listener (wrk, mp->handle, sid);
461 session->session_state = STATE_LISTEN;
463 if (session->is_dgram)
465 svm_fifo_t *rx_fifo, *tx_fifo;
466 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
467 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
468 rx_fifo->client_session_index = sid;
469 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
470 tx_fifo->client_session_index = sid;
471 session->rx_fifo = rx_fifo;
472 session->tx_fifo = tx_fifo;
475 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: bind succeeded!",
476 getpid (), mp->handle, sid);
481 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
483 session_accepted_msg_t *accepted_msg;
484 session_disconnected_msg_t *disconnected_msg;
485 vcl_session_msg_t *vcl_msg;
486 vcl_session_t *session;
490 switch (e->event_type)
492 case FIFO_EVENT_APP_RX:
493 case FIFO_EVENT_APP_TX:
494 case SESSION_IO_EVT_CT_RX:
495 case SESSION_IO_EVT_CT_TX:
496 vec_add1 (wrk->unhandled_evts_vector, *e);
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 0x%llx, 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_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 || s->is_vep))
1278 return VPPCOM_EBADFD;
1280 if (PREDICT_FALSE (!vcl_session_is_readable (s)))
1282 session_state_t state = s->session_state;
1283 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1285 VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: %s session is not open! "
1286 "state 0x%x (%s), returning %d (%s)",
1287 getpid (), s->vpp_handle, session_handle, state,
1288 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1292 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1293 is_ct = vcl_session_is_ct (s);
1294 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1295 rx_fifo = s->rx_fifo;
1298 if (svm_fifo_is_empty (rx_fifo))
1302 svm_fifo_unset_event (rx_fifo);
1303 return VPPCOM_EWOULDBLOCK;
1305 while (svm_fifo_is_empty (rx_fifo))
1307 svm_fifo_unset_event (rx_fifo);
1308 svm_msg_q_lock (mq);
1309 if (svm_msg_q_is_empty (mq))
1310 svm_msg_q_wait (mq);
1312 svm_msg_q_sub_w_lock (mq, &msg);
1313 e = svm_msg_q_msg_data (mq, &msg);
1314 svm_msg_q_unlock (mq);
1315 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1317 vcl_handle_mq_event (wrk, e);
1318 svm_msg_q_free_msg (mq, &msg);
1321 svm_msg_q_free_msg (mq, &msg);
1323 if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY))
1329 n_read = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1331 n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1333 if (svm_fifo_is_empty (rx_fifo))
1334 svm_fifo_unset_event (rx_fifo);
1336 if (is_ct && svm_fifo_want_tx_evt (rx_fifo))
1338 svm_fifo_set_want_tx_evt (s->rx_fifo, 0);
1339 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo, SESSION_IO_EVT_CT_RX,
1343 VDBG (2, "VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes from (%p)",
1344 getpid (), s->vpp_handle, session_handle, n_read, rx_fifo);
1350 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1352 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1356 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1358 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1362 vppcom_session_read_segments (uint32_t session_handle,
1363 vppcom_data_segments_t ds)
1365 vcl_worker_t *wrk = vcl_worker_get_current ();
1366 int n_read = 0, rv, is_nonblocking;
1367 vcl_session_t *s = 0;
1368 svm_fifo_t *rx_fifo;
1369 svm_msg_q_msg_t msg;
1374 s = vcl_session_get_w_handle (wrk, session_handle);
1375 if (PREDICT_FALSE (!s || s->is_vep))
1376 return VPPCOM_EBADFD;
1378 if (PREDICT_FALSE (!vcl_session_is_readable (s)))
1380 session_state_t state = s->session_state;
1381 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1385 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1386 is_ct = vcl_session_is_ct (s);
1387 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1388 rx_fifo = s->rx_fifo;
1391 if (svm_fifo_is_empty (rx_fifo))
1395 svm_fifo_unset_event (rx_fifo);
1396 return VPPCOM_EWOULDBLOCK;
1398 while (svm_fifo_is_empty (rx_fifo))
1400 svm_fifo_unset_event (rx_fifo);
1401 svm_msg_q_lock (mq);
1402 if (svm_msg_q_is_empty (mq))
1403 svm_msg_q_wait (mq);
1405 svm_msg_q_sub_w_lock (mq, &msg);
1406 e = svm_msg_q_msg_data (mq, &msg);
1407 svm_msg_q_unlock (mq);
1408 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1410 vcl_handle_mq_event (wrk, e);
1411 svm_msg_q_free_msg (mq, &msg);
1414 svm_msg_q_free_msg (mq, &msg);
1416 if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY))
1421 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_segment_t *) ds);
1422 svm_fifo_unset_event (rx_fifo);
1424 if (is_ct && n_read + svm_fifo_max_dequeue (rx_fifo) == rx_fifo->nitems)
1426 /* If the peer is not polling send notification */
1427 if (!svm_fifo_has_event (s->rx_fifo))
1428 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo,
1429 SESSION_IO_EVT_CT_RX, SVM_Q_WAIT);
1436 vppcom_session_free_segments (uint32_t session_handle,
1437 vppcom_data_segments_t ds)
1439 vcl_worker_t *wrk = vcl_worker_get_current ();
1442 s = vcl_session_get_w_handle (wrk, session_handle);
1443 if (PREDICT_FALSE (!s || s->is_vep))
1446 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_segment_t *) ds);
1450 vppcom_session_read_ready (vcl_session_t * session)
1452 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1453 if (PREDICT_FALSE (session->is_vep))
1455 clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an "
1456 "epoll session!", getpid (), session->session_index);
1457 return VPPCOM_EBADFD;
1460 if (PREDICT_FALSE (!(session->session_state & (STATE_OPEN | STATE_LISTEN))))
1462 session_state_t state = session->session_state;
1465 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1467 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!"
1468 " state 0x%x (%s), returning %d (%s)", getpid (),
1469 session->vpp_handle, session->session_index, state,
1470 vppcom_session_state_str (state), rv, vppcom_retval_str (rv));
1474 if (session->session_state & STATE_LISTEN)
1475 return clib_fifo_elts (session->accept_evts_fifo);
1477 return svm_fifo_max_dequeue (session->rx_fifo);
1481 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
1483 u32 first_copy = clib_min (ds[0].len, max_bytes);
1484 clib_memcpy (buf, ds[0].data, first_copy);
1485 if (first_copy < max_bytes)
1487 clib_memcpy (buf + first_copy, ds[1].data,
1488 clib_min (ds[1].len, max_bytes - first_copy));
1494 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1497 return (e->event_type == FIFO_EVENT_APP_TX
1498 && e->fifo->client_session_index == sid);
1500 return (e->event_type == SESSION_IO_EVT_CT_RX);
1504 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
1506 vcl_worker_t *wrk = vcl_worker_get_current ();
1507 int rv, n_write, is_nonblocking;
1508 vcl_session_t *s = 0;
1509 svm_fifo_t *tx_fifo = 0;
1510 session_evt_type_t et;
1511 svm_msg_q_msg_t msg;
1516 if (PREDICT_FALSE (!buf))
1517 return VPPCOM_EINVAL;
1519 s = vcl_session_get_w_handle (wrk, session_handle);
1520 if (PREDICT_FALSE (!s))
1521 return VPPCOM_EBADFD;
1523 if (PREDICT_FALSE (s->is_vep))
1525 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1526 "cannot write to an epoll session!",
1527 getpid (), s->vpp_handle, session_handle);
1529 return VPPCOM_EBADFD;
1532 if (PREDICT_FALSE (!(s->session_state & STATE_OPEN)))
1534 session_state_t state = s->session_state;
1535 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1536 VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! "
1537 "state 0x%x (%s)", getpid (), s->vpp_handle, session_handle,
1538 state, vppcom_session_state_str (state));
1542 tx_fifo = s->tx_fifo;
1543 is_ct = vcl_session_is_ct (s);
1544 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1545 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1546 if (svm_fifo_is_full (tx_fifo))
1550 return VPPCOM_EWOULDBLOCK;
1552 while (svm_fifo_is_full (tx_fifo))
1554 svm_fifo_set_want_tx_evt (tx_fifo, 1);
1555 svm_msg_q_lock (mq);
1556 if (svm_msg_q_is_empty (mq))
1557 svm_msg_q_wait (mq);
1559 svm_msg_q_sub_w_lock (mq, &msg);
1560 e = svm_msg_q_msg_data (mq, &msg);
1561 svm_msg_q_unlock (mq);
1563 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
1564 vcl_handle_mq_event (wrk, e);
1565 svm_msg_q_free_msg (mq, &msg);
1569 ASSERT (FIFO_EVENT_APP_TX + 1 == SESSION_IO_EVT_CT_TX);
1570 et = FIFO_EVENT_APP_TX + vcl_session_is_ct (s);
1572 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
1573 s->vpp_evt_q, buf, n, et, SVM_Q_WAIT);
1575 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
1578 ASSERT (n_write > 0);
1580 VDBG (2, "VCL<%d>: vpp handle 0x%llx, sid %u: wrote %d bytes", getpid (),
1581 s->vpp_handle, session_handle, n_write);
1586 static vcl_session_t *
1587 vcl_ct_session_get_from_fifo (vcl_worker_t * wrk, svm_fifo_t * f, u8 type)
1590 s = vcl_session_get (wrk, f->client_session_index);
1594 if (type == 0 && s->rx_fifo == f)
1597 if (type == 1 && s->tx_fifo == f)
1600 s = vcl_session_get (wrk, f->master_session_index);
1603 if (type == 0 && s->rx_fifo == f)
1605 if (type == 1 && s->tx_fifo == f)
1612 vppcom_session_write_ready (vcl_session_t * session)
1614 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
1615 if (PREDICT_FALSE (session->is_vep))
1617 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1618 "cannot write to an epoll session!",
1619 getpid (), session->vpp_handle, session->session_index);
1620 return VPPCOM_EBADFD;
1623 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1625 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1626 "cannot write to a listen session!",
1627 getpid (), session->vpp_handle, session->session_index);
1628 return VPPCOM_EBADFD;
1631 if (PREDICT_FALSE (!(session->session_state & STATE_OPEN)))
1633 session_state_t state = session->session_state;
1636 rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN);
1637 clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: "
1638 "session is not open! state 0x%x (%s), "
1639 "returning %d (%s)", getpid (), session->vpp_handle,
1640 session->session_index,
1641 state, vppcom_session_state_str (state),
1642 rv, vppcom_retval_str (rv));
1646 VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d",
1647 getpid (), session->vpp_handle, session->session_index,
1648 session->tx_fifo, svm_fifo_max_enqueue (session->tx_fifo));
1650 return svm_fifo_max_enqueue (session->tx_fifo);
1654 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq)
1656 svm_msg_q_msg_t *msg;
1660 n_msgs = svm_msg_q_size (mq);
1661 for (i = 0; i < n_msgs; i++)
1663 vec_add2 (wrk->mq_msg_vector, msg, 1);
1664 svm_msg_q_sub_w_lock (mq, msg);
1669 #define vcl_fifo_rx_evt_valid_or_break(_fifo) \
1670 if (PREDICT_FALSE (svm_fifo_is_empty (_fifo))) \
1672 svm_fifo_unset_event (_fifo); \
1673 if (svm_fifo_is_empty (_fifo)) \
1678 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
1679 unsigned long n_bits, unsigned long *read_map,
1680 unsigned long *write_map,
1681 unsigned long *except_map, u32 * bits_set)
1683 session_disconnected_msg_t *disconnected_msg;
1684 session_connected_msg_t *connected_msg;
1685 session_accepted_msg_t *accepted_msg;
1686 vcl_session_msg_t *vcl_msg;
1687 vcl_session_t *session;
1691 switch (e->event_type)
1693 case FIFO_EVENT_APP_RX:
1694 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1695 sid = e->fifo->client_session_index;
1696 session = vcl_session_get (wrk, sid);
1699 if (sid < n_bits && read_map)
1701 clib_bitmap_set_no_check (read_map, sid, 1);
1705 case FIFO_EVENT_APP_TX:
1706 sid = e->fifo->client_session_index;
1707 session = vcl_session_get (wrk, sid);
1710 if (sid < n_bits && write_map)
1712 clib_bitmap_set_no_check (write_map, sid, 1);
1716 case SESSION_IO_EVT_CT_TX:
1717 vcl_fifo_rx_evt_valid_or_break (e->fifo);
1718 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
1721 sid = session->session_index;
1722 if (sid < n_bits && read_map)
1724 clib_bitmap_set_no_check (read_map, sid, 1);
1728 case SESSION_IO_EVT_CT_RX:
1729 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
1732 sid = session->session_index;
1733 if (sid < n_bits && write_map)
1735 clib_bitmap_set_no_check (write_map, sid, 1);
1739 case SESSION_CTRL_EVT_ACCEPTED:
1740 accepted_msg = (session_accepted_msg_t *) e->data;
1741 handle = accepted_msg->listener_handle;
1742 session = vcl_session_table_lookup_listener (wrk, handle);
1745 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
1746 "listener handle %llx", getpid (), handle);
1750 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
1751 vcl_msg->accepted_msg = *accepted_msg;
1752 sid = session->session_index;
1753 if (sid < n_bits && read_map)
1755 clib_bitmap_set_no_check (read_map, sid, 1);
1759 case SESSION_CTRL_EVT_CONNECTED:
1760 connected_msg = (session_connected_msg_t *) e->data;
1761 vcl_session_connected_handler (wrk, connected_msg);
1763 case SESSION_CTRL_EVT_DISCONNECTED:
1764 disconnected_msg = (session_disconnected_msg_t *) e->data;
1765 sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
1766 if (sid < n_bits && except_map)
1768 clib_bitmap_set_no_check (except_map, sid, 1);
1772 case SESSION_CTRL_EVT_RESET:
1773 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1774 if (sid < n_bits && except_map)
1776 clib_bitmap_set_no_check (except_map, sid, 1);
1781 clib_warning ("unhandled: %u", e->event_type);
1787 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
1788 unsigned long n_bits, unsigned long *read_map,
1789 unsigned long *write_map, unsigned long *except_map,
1790 double time_to_wait, u32 * bits_set)
1792 svm_msg_q_msg_t *msg;
1796 svm_msg_q_lock (mq);
1797 if (svm_msg_q_is_empty (mq))
1801 svm_msg_q_unlock (mq);
1807 svm_msg_q_unlock (mq);
1810 else if (time_to_wait < 0)
1812 svm_msg_q_wait (mq);
1816 if (svm_msg_q_timedwait (mq, time_to_wait))
1818 svm_msg_q_unlock (mq);
1823 vcl_mq_dequeue_batch (wrk, mq);
1824 svm_msg_q_unlock (mq);
1826 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1828 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1829 e = svm_msg_q_msg_data (mq, msg);
1830 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
1831 except_map, bits_set);
1832 svm_msg_q_free_msg (mq, msg);
1834 vec_reset_length (wrk->mq_msg_vector);
1839 vppcom_select_condvar (vcl_worker_t * wrk, unsigned long n_bits,
1840 unsigned long *read_map, unsigned long *write_map,
1841 unsigned long *except_map, double time_to_wait,
1844 double total_wait = 0, wait_slice;
1845 vcl_cut_through_registration_t *cr;
1847 time_to_wait = (time_to_wait == -1) ? 10e9 : time_to_wait;
1848 wait_slice = wrk->cut_through_registrations ? 10e-6 : time_to_wait;
1851 vcl_ct_registration_lock (wrk);
1853 pool_foreach (cr, wrk->cut_through_registrations, ({
1854 vcl_select_handle_mq (wrk, cr->mq, n_bits, read_map, write_map, except_map,
1858 vcl_ct_registration_unlock (wrk);
1860 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
1861 write_map, except_map, time_to_wait, bits_set);
1862 total_wait += wait_slice;
1866 while (total_wait < time_to_wait);
1872 vppcom_select_eventfd (vcl_worker_t * wrk, unsigned long n_bits,
1873 unsigned long *read_map, unsigned long *write_map,
1874 unsigned long *except_map, double time_to_wait,
1877 vcl_mq_evt_conn_t *mqc;
1878 int __clib_unused n_read;
1882 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
1883 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
1884 vec_len (wrk->mq_events), time_to_wait);
1885 for (i = 0; i < n_mq_evts; i++)
1887 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
1888 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
1889 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
1890 except_map, 0, bits_set);
1893 return (n_mq_evts > 0 ? (int) *bits_set : 0);
1897 vppcom_select (unsigned long n_bits, unsigned long *read_map,
1898 unsigned long *write_map, unsigned long *except_map,
1899 double time_to_wait)
1901 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
1902 vcl_worker_t *wrk = vcl_worker_get_current ();
1903 vcl_session_t *session = 0;
1906 ASSERT (sizeof (clib_bitmap_t) == sizeof (long int));
1908 if (n_bits && read_map)
1910 clib_bitmap_validate (wrk->rd_bitmap, minbits);
1911 clib_memcpy (wrk->rd_bitmap, read_map,
1912 vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
1913 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t));
1915 if (n_bits && write_map)
1917 clib_bitmap_validate (wrk->wr_bitmap, minbits);
1918 clib_memcpy (wrk->wr_bitmap, write_map,
1919 vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
1920 memset (write_map, 0,
1921 vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t));
1923 if (n_bits && except_map)
1925 clib_bitmap_validate (wrk->ex_bitmap, minbits);
1926 clib_memcpy (wrk->ex_bitmap, except_map,
1927 vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
1928 memset (except_map, 0,
1929 vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t));
1939 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
1940 if (!(session = vcl_session_get (wrk, sid)))
1942 VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
1944 return VPPCOM_EBADFD;
1947 rv = svm_fifo_is_full (session->tx_fifo);
1950 clib_bitmap_set_no_check (write_map, sid, 1);
1959 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
1960 if (!(session = vcl_session_get (wrk, sid)))
1962 VDBG (0, "VCL<%d>: session %d specified in write_map is closed.",
1964 return VPPCOM_EBADFD;
1967 rv = vppcom_session_read_ready (session);
1970 clib_bitmap_set_no_check (read_map, sid, 1);
1978 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
1980 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
1981 read_map, write_map, except_map, &bits_set);
1983 vec_reset_length (wrk->unhandled_evts_vector);
1985 if (vcm->cfg.use_mq_eventfd)
1986 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
1987 time_to_wait, &bits_set);
1989 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
1990 time_to_wait, &bits_set);
1996 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_idx)
1998 vcl_session_t *session;
1999 vppcom_epoll_t *vep;
2002 if (VPPCOM_DEBUG <= 1)
2005 /* Assumes caller has acquired spinlock: vcm->sessions_lockp */
2006 session = vcl_session_get (wrk, vep_idx);
2007 if (PREDICT_FALSE (!session))
2009 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!",
2010 getpid (), vep_idx);
2013 if (PREDICT_FALSE (!session->is_vep))
2015 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2016 getpid (), vep_idx);
2019 vep = &session->vep;
2020 clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n"
2023 " is_vep_session = %u\n"
2024 " next_sid = 0x%x (%u)\n"
2025 " wait_cont_idx = 0x%x (%u)\n"
2026 "}\n", getpid (), vep_idx,
2027 session->is_vep, session->is_vep_session,
2028 vep->next_sh, vep->next_sh,
2029 session->wait_cont_idx, session->wait_cont_idx);
2031 for (sid = vep->next_sh; sid != ~0; sid = vep->next_sh)
2033 session = vcl_session_get (wrk, sid);
2034 if (PREDICT_FALSE (!session))
2036 clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid);
2039 if (PREDICT_FALSE (session->is_vep))
2040 clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!",
2041 getpid (), vep_idx);
2042 else if (PREDICT_FALSE (!session->is_vep_session))
2044 clib_warning ("VCL<%d>: ERROR: session (%u) "
2045 "is not a vep session!", getpid (), sid);
2048 vep = &session->vep;
2049 if (PREDICT_FALSE (vep->vep_sh != vep_idx))
2050 clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != "
2051 "vep_idx (%u)!", getpid (),
2052 sid, session->vep.vep_sh, vep_idx);
2053 if (session->is_vep_session)
2055 clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n"
2057 " next_sid = 0x%x (%u)\n"
2058 " prev_sid = 0x%x (%u)\n"
2059 " vep_idx = 0x%x (%u)\n"
2060 " ev.events = 0x%x\n"
2061 " ev.data.u64 = 0x%llx\n"
2065 vep->next_sh, vep->next_sh,
2066 vep->prev_sh, vep->prev_sh,
2067 vep->vep_sh, vep->vep_sh,
2068 vep->ev.events, vep->ev.data.u64, vep->et_mask);
2073 clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n",
2074 getpid (), vep_idx);
2078 vppcom_epoll_create (void)
2080 vcl_worker_t *wrk = vcl_worker_get_current ();
2081 vcl_session_t *vep_session;
2083 vep_session = vcl_session_alloc (wrk);
2085 vep_session->is_vep = 1;
2086 vep_session->vep.vep_sh = ~0;
2087 vep_session->vep.next_sh = ~0;
2088 vep_session->vep.prev_sh = ~0;
2089 vep_session->wait_cont_idx = ~0;
2090 vep_session->vpp_handle = ~0;
2092 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_sh);
2093 VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!",
2094 getpid (), vep_session->session_index, vep_session->session_index);
2096 return vcl_session_handle (vep_session);
2100 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2101 struct epoll_event *event)
2103 vcl_worker_t *wrk = vcl_worker_get_current ();
2104 vcl_session_t *vep_session;
2105 vcl_session_t *session;
2108 if (vep_handle == session_handle)
2110 clib_warning ("VCL<%d>: ERROR: vep_idx == session_index (%u)!",
2111 getpid (), vep_handle);
2112 return VPPCOM_EINVAL;
2115 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2116 if (PREDICT_FALSE (!vep_session))
2118 clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_handle);
2119 return VPPCOM_EBADFD;
2121 if (PREDICT_FALSE (!vep_session->is_vep))
2123 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2124 getpid (), vep_handle);
2125 return VPPCOM_EINVAL;
2128 ASSERT (vep_session->vep.vep_sh == ~0);
2129 ASSERT (vep_session->vep.prev_sh == ~0);
2131 session = vcl_session_get_w_handle (wrk, session_handle);
2132 if (PREDICT_FALSE (!session))
2134 VDBG (0, "VCL<%d>: ERROR: Invalid session_handle (%u)!",
2135 getpid (), session_handle);
2136 return VPPCOM_EBADFD;
2138 if (PREDICT_FALSE (session->is_vep))
2140 clib_warning ("ERROR: session_handle (%u) is a vep!", vep_handle);
2141 return VPPCOM_EINVAL;
2147 if (PREDICT_FALSE (!event))
2149 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: NULL pointer to "
2150 "epoll_event structure!", getpid ());
2151 return VPPCOM_EINVAL;
2153 if (vep_session->vep.next_sh != ~0)
2155 vcl_session_t *next_session;
2156 next_session = vcl_session_get_w_handle (wrk,
2157 vep_session->vep.next_sh);
2158 if (PREDICT_FALSE (!next_session))
2160 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid "
2161 "vep.next_sid (%u) on vep_idx (%u)!",
2162 getpid (), vep_session->vep.next_sh, vep_handle);
2163 return VPPCOM_EBADFD;
2165 ASSERT (next_session->vep.prev_sh == vep_handle);
2166 next_session->vep.prev_sh = session_handle;
2168 session->vep.next_sh = vep_session->vep.next_sh;
2169 session->vep.prev_sh = vep_handle;
2170 session->vep.vep_sh = vep_handle;
2171 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2172 session->vep.ev = *event;
2173 session->is_vep = 0;
2174 session->is_vep_session = 1;
2175 vep_session->vep.next_sh = session_handle;
2177 VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x, "
2178 "data 0x%llx!", getpid (), vep_handle, session_handle,
2179 event->events, event->data.u64);
2180 vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64);
2184 if (PREDICT_FALSE (!event))
2186 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_MOD: NULL pointer to "
2187 "epoll_event structure!", getpid ());
2191 else if (PREDICT_FALSE (!session->is_vep_session))
2193 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2194 "not a vep session!", getpid (), session_handle);
2198 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2200 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: "
2201 "vep_idx (%u) != vep_idx (%u)!",
2202 getpid (), session_handle,
2203 session->vep.vep_sh, vep_handle);
2207 session->vep.et_mask = VEP_DEFAULT_ET_MASK;
2208 session->vep.ev = *event;
2209 VDBG (1, "VCL<%d>: EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x,"
2210 " data 0x%llx!", getpid (), vep_handle, session_handle,
2211 event->events, event->data.u64);
2215 if (PREDICT_FALSE (!session->is_vep_session))
2217 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2218 "not a vep session!", getpid (), session_handle);
2222 else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle))
2224 clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: "
2225 "vep_idx (%u) != vep_idx (%u)!",
2226 getpid (), session_handle,
2227 session->vep.vep_sh, vep_handle);
2232 vep_session->wait_cont_idx =
2233 (vep_session->wait_cont_idx == session_handle) ?
2234 session->vep.next_sh : vep_session->wait_cont_idx;
2236 if (session->vep.prev_sh == vep_handle)
2237 vep_session->vep.next_sh = session->vep.next_sh;
2240 vcl_session_t *prev_session;
2241 prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh);
2242 if (PREDICT_FALSE (!prev_session))
2244 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2245 "vep.prev_sid (%u) on sid (%u)!",
2246 getpid (), session->vep.prev_sh, session_handle);
2247 return VPPCOM_EBADFD;
2249 ASSERT (prev_session->vep.next_sh == session_handle);
2250 prev_session->vep.next_sh = session->vep.next_sh;
2252 if (session->vep.next_sh != ~0)
2254 vcl_session_t *next_session;
2255 next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh);
2256 if (PREDICT_FALSE (!next_session))
2258 clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid "
2259 "vep.next_sid (%u) on sid (%u)!",
2260 getpid (), session->vep.next_sh, session_handle);
2261 return VPPCOM_EBADFD;
2263 ASSERT (next_session->vep.prev_sh == session_handle);
2264 next_session->vep.prev_sh = session->vep.prev_sh;
2267 memset (&session->vep, 0, sizeof (session->vep));
2268 session->vep.next_sh = ~0;
2269 session->vep.prev_sh = ~0;
2270 session->vep.vep_sh = ~0;
2271 session->is_vep_session = 0;
2272 VDBG (1, "VCL<%d>: EPOLL_CTL_DEL: vep_idx %u, sid %u!",
2273 getpid (), vep_handle, session_handle);
2274 vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh);
2278 clib_warning ("VCL<%d>: ERROR: Invalid operation (%d)!", getpid (), op);
2282 vep_verify_epoll_chain (wrk, vep_handle);
2289 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2290 struct epoll_event *events, u32 * num_ev)
2292 session_disconnected_msg_t *disconnected_msg;
2293 session_connected_msg_t *connected_msg;
2294 session_accepted_msg_t *accepted_msg;
2295 u64 session_evt_data = ~0, handle;
2296 u32 sid = ~0, session_events;
2297 vcl_session_msg_t *vcl_msg;
2298 vcl_session_t *session;
2301 switch (e->event_type)
2303 case FIFO_EVENT_APP_RX:
2304 ASSERT (e->fifo->client_thread_index == vcl_get_worker_index ());
2305 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2306 sid = e->fifo->client_session_index;
2307 session = vcl_session_get (wrk, sid);
2308 session_events = session->vep.ev.events;
2309 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2312 events[*num_ev].events |= EPOLLIN;
2313 session_evt_data = session->vep.ev.data.u64;
2314 session->has_rx_evt = 1;
2316 case FIFO_EVENT_APP_TX:
2317 sid = e->fifo->client_session_index;
2318 session = vcl_session_get (wrk, sid);
2319 session_events = session->vep.ev.events;
2320 if (!(EPOLLOUT & session_events))
2323 events[*num_ev].events |= EPOLLOUT;
2324 session_evt_data = session->vep.ev.data.u64;
2326 case SESSION_IO_EVT_CT_TX:
2327 vcl_fifo_rx_evt_valid_or_break (e->fifo);
2328 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0);
2329 sid = session->session_index;
2330 session_events = session->vep.ev.events;
2331 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2334 events[*num_ev].events |= EPOLLIN;
2335 session_evt_data = session->vep.ev.data.u64;
2336 session->has_rx_evt = 1;
2338 case SESSION_IO_EVT_CT_RX:
2339 session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1);
2340 sid = session->session_index;
2341 session_events = session->vep.ev.events;
2342 if (!(EPOLLOUT & session_events))
2345 events[*num_ev].events |= EPOLLOUT;
2346 session_evt_data = session->vep.ev.data.u64;
2348 case SESSION_CTRL_EVT_ACCEPTED:
2349 accepted_msg = (session_accepted_msg_t *) e->data;
2350 handle = accepted_msg->listener_handle;
2351 session = vcl_session_table_lookup_listener (wrk, handle);
2354 clib_warning ("VCL<%d>: ERROR: couldn't find listen session:"
2355 "listener handle %llx", getpid (), handle);
2359 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
2360 vcl_msg->accepted_msg = *accepted_msg;
2361 session_events = session->vep.ev.events;
2362 if (!(EPOLLIN & session_events))
2366 events[*num_ev].events |= EPOLLIN;
2367 session_evt_data = session->vep.ev.data.u64;
2369 case SESSION_CTRL_EVT_CONNECTED:
2370 connected_msg = (session_connected_msg_t *) e->data;
2371 vcl_session_connected_handler (wrk, connected_msg);
2372 /* Generate EPOLLOUT because there's no connected event */
2373 sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle);
2374 session = vcl_session_get (wrk, sid);
2375 session_events = session->vep.ev.events;
2376 if (EPOLLOUT & session_events)
2379 events[*num_ev].events |= EPOLLOUT;
2380 session_evt_data = session->vep.ev.data.u64;
2383 case SESSION_CTRL_EVT_DISCONNECTED:
2384 disconnected_msg = (session_disconnected_msg_t *) e->data;
2385 sid = vcl_session_index_from_vpp_handle (wrk, disconnected_msg->handle);
2386 if (!(session = vcl_session_get (wrk, sid)))
2389 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2390 session_evt_data = session->vep.ev.data.u64;
2391 session_events = session->vep.ev.events;
2393 case SESSION_CTRL_EVT_RESET:
2394 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2395 if (!(session = vcl_session_get (wrk, sid)))
2398 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2399 session_evt_data = session->vep.ev.data.u64;
2400 session_events = session->vep.ev.events;
2403 VDBG (0, "unhandled: %u", e->event_type);
2409 events[*num_ev].data.u64 = session_evt_data;
2410 if (EPOLLONESHOT & session_events)
2412 session = vcl_session_get (wrk, sid);
2413 session->vep.ev.events = 0;
2420 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2421 struct epoll_event *events, u32 maxevents,
2422 double wait_for_time, u32 * num_ev)
2424 svm_msg_q_msg_t *msg;
2428 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2429 goto handle_dequeued;
2431 svm_msg_q_lock (mq);
2432 if (svm_msg_q_is_empty (mq))
2436 svm_msg_q_unlock (mq);
2439 else if (wait_for_time < 0)
2441 svm_msg_q_wait (mq);
2445 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2447 svm_msg_q_unlock (mq);
2452 vcl_mq_dequeue_batch (wrk, mq);
2453 svm_msg_q_unlock (mq);
2456 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2458 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2459 e = svm_msg_q_msg_data (mq, msg);
2460 if (*num_ev < maxevents)
2461 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2463 vec_add1 (wrk->unhandled_evts_vector, *e);
2464 svm_msg_q_free_msg (mq, msg);
2466 vec_reset_length (wrk->mq_msg_vector);
2472 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2473 int maxevents, u32 n_evts, double wait_for_time)
2475 vcl_cut_through_registration_t *cr;
2476 double total_wait = 0, wait_slice;
2479 wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time;
2480 wait_slice = wrk->cut_through_registrations ? 10e-6 : wait_for_time;
2484 vcl_ct_registration_lock (wrk);
2486 pool_foreach (cr, wrk->cut_through_registrations, ({
2487 vcl_epoll_wait_handle_mq (wrk, cr->mq, events, maxevents, 0, &n_evts);
2490 vcl_ct_registration_unlock (wrk);
2492 rv = vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events,
2493 maxevents, n_evts ? 0 : wait_slice,
2496 total_wait += wait_slice;
2500 while (total_wait < wait_for_time);
2505 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2506 int maxevents, u32 n_evts, double wait_for_time)
2508 vcl_mq_evt_conn_t *mqc;
2509 int __clib_unused n_read;
2513 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2515 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2516 vec_len (wrk->mq_events), wait_for_time);
2517 for (i = 0; i < n_mq_evts; i++)
2519 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2520 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2521 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
2523 if (!n_evts && n_mq_evts > 0)
2526 return (int) n_evts;
2530 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2531 int maxevents, double wait_for_time)
2533 vcl_worker_t *wrk = vcl_worker_get_current ();
2534 vcl_session_t *vep_session;
2538 if (PREDICT_FALSE (maxevents <= 0))
2540 clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!",
2541 getpid (), maxevents);
2542 return VPPCOM_EINVAL;
2545 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2547 return VPPCOM_EBADFD;
2549 if (PREDICT_FALSE (!vep_session->is_vep))
2551 clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!",
2552 getpid (), vep_handle);
2553 return VPPCOM_EINVAL;
2556 memset (events, 0, sizeof (*events) * maxevents);
2558 if (vec_len (wrk->unhandled_evts_vector))
2560 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2562 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
2564 if (n_evts == maxevents)
2571 vec_delete (wrk->unhandled_evts_vector, i, 0);
2574 if (vcm->cfg.use_mq_eventfd)
2575 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
2578 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
2583 vppcom_session_attr (uint32_t session_handle, uint32_t op,
2584 void *buffer, uint32_t * buflen)
2586 vcl_worker_t *wrk = vcl_worker_get_current ();
2587 vcl_session_t *session;
2589 u32 *flags = buffer;
2590 vppcom_endpt_t *ep = buffer;
2592 session = vcl_session_get_w_handle (wrk, session_handle);
2594 return VPPCOM_EBADFD;
2598 case VPPCOM_ATTR_GET_NREAD:
2599 rv = vppcom_session_read_ready (session);
2600 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d",
2604 case VPPCOM_ATTR_GET_NWRITE:
2605 rv = vppcom_session_write_ready (session);
2606 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d",
2607 getpid (), session_handle, rv);
2610 case VPPCOM_ATTR_GET_FLAGS:
2611 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
2613 *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr,
2614 VCL_SESS_ATTR_NONBLOCK));
2615 *buflen = sizeof (*flags);
2616 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, "
2617 "is_nonblocking = %u", getpid (),
2618 session_handle, *flags,
2619 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2625 case VPPCOM_ATTR_SET_FLAGS:
2626 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
2628 if (*flags & O_NONBLOCK)
2629 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
2631 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
2633 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x,"
2634 " is_nonblocking = %u",
2635 getpid (), session_handle, *flags,
2636 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
2642 case VPPCOM_ATTR_GET_PEER_ADDR:
2643 if (PREDICT_TRUE (buffer && buflen &&
2644 (*buflen >= sizeof (*ep)) && ep->ip))
2646 ep->is_ip4 = session->transport.is_ip4;
2647 ep->port = session->transport.rmt_port;
2648 if (session->transport.is_ip4)
2649 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
2650 sizeof (ip4_address_t));
2652 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
2653 sizeof (ip6_address_t));
2654 *buflen = sizeof (*ep);
2655 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, "
2656 "addr = %U, port %u", getpid (),
2657 session_handle, ep->is_ip4, format_ip46_address,
2658 &session->transport.rmt_ip,
2659 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2660 clib_net_to_host_u16 (ep->port));
2666 case VPPCOM_ATTR_GET_LCL_ADDR:
2667 if (PREDICT_TRUE (buffer && buflen &&
2668 (*buflen >= sizeof (*ep)) && ep->ip))
2670 ep->is_ip4 = session->transport.is_ip4;
2671 ep->port = session->transport.lcl_port;
2672 if (session->transport.is_ip4)
2673 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip4,
2674 sizeof (ip4_address_t));
2676 clib_memcpy (ep->ip, &session->transport.lcl_ip.ip6,
2677 sizeof (ip6_address_t));
2678 *buflen = sizeof (*ep);
2679 VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u,"
2680 " addr = %U port %d", getpid (),
2681 session_handle, ep->is_ip4, format_ip46_address,
2682 &session->transport.lcl_ip,
2683 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
2684 clib_net_to_host_u16 (ep->port));
2690 case VPPCOM_ATTR_GET_LIBC_EPFD:
2691 rv = session->libc_epfd;
2692 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d",
2696 case VPPCOM_ATTR_SET_LIBC_EPFD:
2697 if (PREDICT_TRUE (buffer && buflen &&
2698 (*buflen == sizeof (session->libc_epfd))))
2700 session->libc_epfd = *(int *) buffer;
2701 *buflen = sizeof (session->libc_epfd);
2703 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, "
2704 "buflen %d", getpid (), session->libc_epfd, *buflen);
2710 case VPPCOM_ATTR_GET_PROTOCOL:
2711 if (buffer && buflen && (*buflen >= sizeof (int)))
2713 *(int *) buffer = session->session_type;
2714 *buflen = sizeof (int);
2716 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
2717 getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP",
2724 case VPPCOM_ATTR_GET_LISTEN:
2725 if (buffer && buflen && (*buflen >= sizeof (int)))
2727 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2728 VCL_SESS_ATTR_LISTEN);
2729 *buflen = sizeof (int);
2731 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d",
2732 getpid (), *(int *) buffer, *buflen);
2738 case VPPCOM_ATTR_GET_ERROR:
2739 if (buffer && buflen && (*buflen >= sizeof (int)))
2741 *(int *) buffer = 0;
2742 *buflen = sizeof (int);
2744 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
2745 getpid (), *(int *) buffer, *buflen);
2751 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
2752 if (buffer && buflen && (*buflen >= sizeof (u32)))
2756 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
2757 session->tx_fifo ? session->tx_fifo->nitems :
2758 vcm->cfg.tx_fifo_size);
2759 *buflen = sizeof (u32);
2761 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), "
2762 "buflen %d, #VPP-TBD#", getpid (),
2763 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2769 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
2770 if (buffer && buflen && (*buflen == sizeof (u32)))
2773 session->sndbuf_size = *(u32 *) buffer;
2774 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), "
2775 "buflen %d, #VPP-TBD#", getpid (),
2776 session->sndbuf_size, session->sndbuf_size, *buflen);
2782 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
2783 if (buffer && buflen && (*buflen >= sizeof (u32)))
2787 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
2788 session->rx_fifo ? session->rx_fifo->nitems :
2789 vcm->cfg.rx_fifo_size);
2790 *buflen = sizeof (u32);
2792 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), "
2793 "buflen %d, #VPP-TBD#", getpid (),
2794 *(size_t *) buffer, *(size_t *) buffer, *buflen);
2800 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
2801 if (buffer && buflen && (*buflen == sizeof (u32)))
2804 session->rcvbuf_size = *(u32 *) buffer;
2805 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), "
2806 "buflen %d, #VPP-TBD#", getpid (),
2807 session->sndbuf_size, session->sndbuf_size, *buflen);
2813 case VPPCOM_ATTR_GET_REUSEADDR:
2814 if (buffer && buflen && (*buflen >= sizeof (int)))
2817 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2818 VCL_SESS_ATTR_REUSEADDR);
2819 *buflen = sizeof (int);
2821 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, "
2822 "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2828 case VPPCOM_ATTR_SET_REUSEADDR:
2829 if (buffer && buflen && (*buflen == sizeof (int)) &&
2830 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2833 if (*(int *) buffer)
2834 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
2836 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
2838 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d,"
2839 " #VPP-TBD#", getpid (),
2840 VCL_SESS_ATTR_TEST (session->attr,
2841 VCL_SESS_ATTR_REUSEADDR), *buflen);
2847 case VPPCOM_ATTR_GET_REUSEPORT:
2848 if (buffer && buflen && (*buflen >= sizeof (int)))
2851 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2852 VCL_SESS_ATTR_REUSEPORT);
2853 *buflen = sizeof (int);
2855 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d,"
2856 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2862 case VPPCOM_ATTR_SET_REUSEPORT:
2863 if (buffer && buflen && (*buflen == sizeof (int)) &&
2864 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
2867 if (*(int *) buffer)
2868 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
2870 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
2872 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d,"
2873 " #VPP-TBD#", getpid (),
2874 VCL_SESS_ATTR_TEST (session->attr,
2875 VCL_SESS_ATTR_REUSEPORT), *buflen);
2881 case VPPCOM_ATTR_GET_BROADCAST:
2882 if (buffer && buflen && (*buflen >= sizeof (int)))
2885 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2886 VCL_SESS_ATTR_BROADCAST);
2887 *buflen = sizeof (int);
2889 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d,"
2890 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2896 case VPPCOM_ATTR_SET_BROADCAST:
2897 if (buffer && buflen && (*buflen == sizeof (int)))
2900 if (*(int *) buffer)
2901 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
2903 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
2905 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, "
2906 "#VPP-TBD#", getpid (),
2907 VCL_SESS_ATTR_TEST (session->attr,
2908 VCL_SESS_ATTR_BROADCAST), *buflen);
2914 case VPPCOM_ATTR_GET_V6ONLY:
2915 if (buffer && buflen && (*buflen >= sizeof (int)))
2918 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2919 VCL_SESS_ATTR_V6ONLY);
2920 *buflen = sizeof (int);
2922 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, "
2923 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2929 case VPPCOM_ATTR_SET_V6ONLY:
2930 if (buffer && buflen && (*buflen == sizeof (int)))
2933 if (*(int *) buffer)
2934 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
2936 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
2938 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, "
2939 "#VPP-TBD#", getpid (),
2940 VCL_SESS_ATTR_TEST (session->attr,
2941 VCL_SESS_ATTR_V6ONLY), *buflen);
2947 case VPPCOM_ATTR_GET_KEEPALIVE:
2948 if (buffer && buflen && (*buflen >= sizeof (int)))
2951 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2952 VCL_SESS_ATTR_KEEPALIVE);
2953 *buflen = sizeof (int);
2955 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, "
2956 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2962 case VPPCOM_ATTR_SET_KEEPALIVE:
2963 if (buffer && buflen && (*buflen == sizeof (int)))
2966 if (*(int *) buffer)
2967 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2969 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
2971 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, "
2972 "#VPP-TBD#", getpid (),
2973 VCL_SESS_ATTR_TEST (session->attr,
2974 VCL_SESS_ATTR_KEEPALIVE), *buflen);
2980 case VPPCOM_ATTR_GET_TCP_NODELAY:
2981 if (buffer && buflen && (*buflen >= sizeof (int)))
2984 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
2985 VCL_SESS_ATTR_TCP_NODELAY);
2986 *buflen = sizeof (int);
2988 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, "
2989 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
2995 case VPPCOM_ATTR_SET_TCP_NODELAY:
2996 if (buffer && buflen && (*buflen == sizeof (int)))
2999 if (*(int *) buffer)
3000 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3002 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3004 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, "
3005 "#VPP-TBD#", getpid (),
3006 VCL_SESS_ATTR_TEST (session->attr,
3007 VCL_SESS_ATTR_TCP_NODELAY), *buflen);
3013 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3014 if (buffer && buflen && (*buflen >= sizeof (int)))
3017 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3018 VCL_SESS_ATTR_TCP_KEEPIDLE);
3019 *buflen = sizeof (int);
3021 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, "
3022 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3028 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3029 if (buffer && buflen && (*buflen == sizeof (int)))
3032 if (*(int *) buffer)
3033 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3035 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3037 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, "
3038 "#VPP-TBD#", getpid (),
3039 VCL_SESS_ATTR_TEST (session->attr,
3040 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3046 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3047 if (buffer && buflen && (*buflen >= sizeof (int)))
3050 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3051 VCL_SESS_ATTR_TCP_KEEPINTVL);
3052 *buflen = sizeof (int);
3054 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, "
3055 "#VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3061 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3062 if (buffer && buflen && (*buflen == sizeof (int)))
3065 if (*(int *) buffer)
3066 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3068 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3070 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, "
3071 "#VPP-TBD#", getpid (),
3072 VCL_SESS_ATTR_TEST (session->attr,
3073 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3079 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3080 if (buffer && buflen && (*buflen >= sizeof (u32)))
3083 *(u32 *) buffer = session->user_mss;
3084 *buflen = sizeof (int);
3086 VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d,"
3087 " #VPP-TBD#", getpid (), *(int *) buffer, *buflen);
3093 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3094 if (buffer && buflen && (*buflen == sizeof (u32)))
3097 session->user_mss = *(u32 *) buffer;
3099 VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, "
3100 "#VPP-TBD#", getpid (), session->user_mss, *buflen);
3115 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3116 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3118 vcl_worker_t *wrk = vcl_worker_get_current ();
3120 vcl_session_t *session = 0;
3124 session = vcl_session_get_w_handle (wrk, session_handle);
3125 if (PREDICT_FALSE (!session))
3127 VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!",
3128 getpid (), session_handle);
3129 return VPPCOM_EBADFD;
3131 ep->is_ip4 = session->transport.is_ip4;
3132 ep->port = session->transport.rmt_port;
3136 rv = vppcom_session_read (session_handle, buffer, buflen);
3137 else if (flags & MSG_PEEK)
3138 rv = vppcom_session_peek (session_handle, buffer, buflen);
3141 clib_warning ("VCL<%d>: Unsupport flags for recvfrom %d",
3143 return VPPCOM_EAFNOSUPPORT;
3148 if (session->transport.is_ip4)
3149 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4,
3150 sizeof (ip4_address_t));
3152 clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6,
3153 sizeof (ip6_address_t));
3160 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3161 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3164 return VPPCOM_EINVAL;
3169 return VPPCOM_EINVAL;
3174 // TBD check the flags and do the right thing
3175 VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.",
3176 getpid (), flags, flags);
3179 return (vppcom_session_write (session_handle, buffer, buflen));
3183 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3185 vcl_worker_t *wrk = vcl_worker_get_current ();
3186 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3187 u32 i, keep_trying = 1;
3190 VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f",
3191 getpid (), vp, n_sids, wait_for_time);
3194 return VPPCOM_EFAULT;
3198 vcl_session_t *session;
3200 for (i = 0; i < n_sids; i++)
3202 ASSERT (vp[i].revents);
3204 session = vcl_session_get (wrk, vp[i].sid);
3211 if (POLLIN & vp[i].events)
3213 rv = vppcom_session_read_ready (session);
3216 *vp[i].revents |= POLLIN;
3223 case VPPCOM_ECONNRESET:
3224 *vp[i].revents = POLLHUP;
3228 *vp[i].revents = POLLERR;
3235 if (POLLOUT & vp[i].events)
3237 rv = vppcom_session_write_ready (session);
3240 *vp[i].revents |= POLLOUT;
3247 case VPPCOM_ECONNRESET:
3248 *vp[i].revents = POLLHUP;
3252 *vp[i].revents = POLLERR;
3259 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3261 *vp[i].revents = POLLNVAL;
3265 if (wait_for_time != -1)
3266 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3268 while ((num_ev == 0) && keep_trying);
3270 if (VPPCOM_DEBUG > 3)
3272 clib_warning ("VCL<%d>: returning %d", getpid (), num_ev);
3273 for (i = 0; i < n_sids; i++)
3275 clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, "
3276 ".revents 0x%x", getpid (), i, vp[i].sid, vp[i].sid,
3277 vp[i].events, *vp[i].revents);
3284 vppcom_mq_epoll_fd (void)
3286 vcl_worker_t *wrk = vcl_worker_get_current ();
3287 return wrk->mqs_epfd;
3291 vppcom_session_index (uint32_t session_handle)
3293 return session_handle & 0xFFFFFF;
3297 vppcom_worker_register (void)
3299 if (vcl_worker_alloc_and_init ())
3301 return VPPCOM_EEXIST;
3305 * fd.io coding-style-patch-verification: ON
3308 * eval: (c-set-style "gnu")