2 * Copyright (c) 2017-2019 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 <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_segment_is_not_mounted (vcl_worker_t * wrk, u64 segment_handle)
30 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
33 segment_index = vcl_segment_table_lookup (segment_handle);
34 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
41 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
47 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
48 for (i = 0; i < n_msgs; i++)
50 vec_add2 (wrk->mq_msg_vector, msg, 1);
51 svm_msg_q_sub_w_lock (mq, msg);
57 vppcom_session_state_str (vcl_session_state_t state)
79 case STATE_VPP_CLOSING:
80 st = "STATE_VPP_CLOSING";
83 case STATE_DISCONNECT:
84 st = "STATE_DISCONNECT";
88 st = "STATE_DETACHED";
95 case STATE_LISTEN_NO_MQ:
96 st = "STATE_LISTEN_NO_MQ";
100 st = "UNKNOWN_STATE";
108 format_ip4_address (u8 * s, va_list * args)
110 u8 *a = va_arg (*args, u8 *);
111 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
115 format_ip6_address (u8 * s, va_list * args)
117 ip6_address_t *a = va_arg (*args, ip6_address_t *);
118 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
120 i_max_n_zero = ARRAY_LEN (a->as_u16);
122 i_first_zero = i_max_n_zero;
124 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
126 u32 is_zero = a->as_u16[i] == 0;
127 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
133 if ((!is_zero && n_zeros > max_n_zeros)
134 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
136 i_max_n_zero = i_first_zero;
137 max_n_zeros = n_zeros;
138 i_first_zero = ARRAY_LEN (a->as_u16);
143 last_double_colon = 0;
144 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
146 if (i == i_max_n_zero && max_n_zeros > 1)
148 s = format (s, "::");
149 i += max_n_zeros - 1;
150 last_double_colon = 1;
154 s = format (s, "%s%x",
155 (last_double_colon || i == 0) ? "" : ":",
156 clib_net_to_host_u16 (a->as_u16[i]));
157 last_double_colon = 0;
164 /* Format an IP46 address. */
166 format_ip46_address (u8 * s, va_list * args)
168 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
169 ip46_type_t type = va_arg (*args, ip46_type_t);
175 is_ip4 = ip46_address_is_ip4 (ip46);
186 format (s, "%U", format_ip4_address, &ip46->ip4) :
187 format (s, "%U", format_ip6_address, &ip46->ip6);
191 * VPPCOM Utility Functions
195 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
197 app_session_evt_t _app_evt, *app_evt = &_app_evt;
198 session_listen_msg_t *mp;
201 mq = vcl_worker_ctrl_mq (wrk);
202 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
203 mp = (session_listen_msg_t *) app_evt->evt->data;
204 memset (mp, 0, sizeof (*mp));
205 mp->client_index = wrk->my_client_index;
206 mp->context = s->session_index;
207 mp->wrk_index = wrk->vpp_wrk_index;
208 mp->is_ip4 = s->transport.is_ip4;
209 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
210 mp->port = s->transport.lcl_port;
211 mp->proto = s->session_type;
212 if (s->flags & VCL_SESSION_F_CONNECTED)
213 mp->flags = TRANSPORT_CFG_F_CONNECTED;
214 app_send_ctrl_evt_to_vpp (mq, app_evt);
218 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
220 app_session_evt_t _app_evt, *app_evt = &_app_evt;
221 session_connect_msg_t *mp;
224 mq = vcl_worker_ctrl_mq (wrk);
225 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
226 mp = (session_connect_msg_t *) app_evt->evt->data;
227 memset (mp, 0, sizeof (*mp));
228 mp->client_index = wrk->my_client_index;
229 mp->context = s->session_index;
230 mp->wrk_index = wrk->vpp_wrk_index;
231 mp->is_ip4 = s->transport.is_ip4;
232 mp->parent_handle = s->parent_handle;
233 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
234 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
235 mp->port = s->transport.rmt_port;
236 mp->lcl_port = s->transport.lcl_port;
237 mp->proto = s->session_type;
238 if (s->flags & VCL_SESSION_F_CONNECTED)
239 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
240 app_send_ctrl_evt_to_vpp (mq, app_evt);
244 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
246 app_session_evt_t _app_evt, *app_evt = &_app_evt;
247 session_unlisten_msg_t *mp;
250 mq = vcl_worker_ctrl_mq (wrk);
251 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
252 mp = (session_unlisten_msg_t *) app_evt->evt->data;
253 memset (mp, 0, sizeof (*mp));
254 mp->client_index = wrk->my_client_index;
255 mp->wrk_index = wrk->vpp_wrk_index;
256 mp->handle = s->vpp_handle;
257 mp->context = wrk->wrk_index;
258 app_send_ctrl_evt_to_vpp (mq, app_evt);
262 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
264 app_session_evt_t _app_evt, *app_evt = &_app_evt;
265 session_disconnect_msg_t *mp;
268 /* Send to thread that owns the session */
270 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
271 mp = (session_disconnect_msg_t *) app_evt->evt->data;
272 memset (mp, 0, sizeof (*mp));
273 mp->client_index = wrk->my_client_index;
274 mp->handle = s->vpp_handle;
275 app_send_ctrl_evt_to_vpp (mq, app_evt);
279 vcl_send_app_detach (vcl_worker_t * wrk)
281 app_session_evt_t _app_evt, *app_evt = &_app_evt;
282 session_app_detach_msg_t *mp;
285 mq = vcl_worker_ctrl_mq (wrk);
286 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
287 mp = (session_app_detach_msg_t *) app_evt->evt->data;
288 memset (mp, 0, sizeof (*mp));
289 mp->client_index = wrk->my_client_index;
290 app_send_ctrl_evt_to_vpp (mq, app_evt);
294 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
295 session_handle_t handle, int retval)
297 app_session_evt_t _app_evt, *app_evt = &_app_evt;
298 session_accepted_reply_msg_t *rmp;
299 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
300 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
301 rmp->handle = handle;
302 rmp->context = context;
303 rmp->retval = retval;
304 app_send_ctrl_evt_to_vpp (mq, app_evt);
308 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
309 session_handle_t handle, int retval)
311 app_session_evt_t _app_evt, *app_evt = &_app_evt;
312 session_disconnected_reply_msg_t *rmp;
313 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
314 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
315 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
316 rmp->handle = handle;
317 rmp->context = context;
318 rmp->retval = retval;
319 app_send_ctrl_evt_to_vpp (mq, app_evt);
323 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
324 session_handle_t handle, int retval)
326 app_session_evt_t _app_evt, *app_evt = &_app_evt;
327 session_reset_reply_msg_t *rmp;
328 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
329 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
330 rmp->handle = handle;
331 rmp->context = context;
332 rmp->retval = retval;
333 app_send_ctrl_evt_to_vpp (mq, app_evt);
337 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
340 app_session_evt_t _app_evt, *app_evt = &_app_evt;
341 session_worker_update_msg_t *mp;
344 mq = vcl_session_vpp_evt_q (wrk, s);
345 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
346 mp = (session_worker_update_msg_t *) app_evt->evt->data;
347 mp->client_index = wrk->my_client_index;
348 mp->handle = s->vpp_handle;
349 mp->req_wrk_index = wrk->vpp_wrk_index;
350 mp->wrk_index = wrk_index;
351 app_send_ctrl_evt_to_vpp (mq, app_evt);
355 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
357 app_session_evt_t _app_evt, *app_evt = &_app_evt;
358 session_app_wrk_rpc_msg_t *mp;
359 vcl_worker_t *dst_wrk, *wrk;
363 if (data_len > sizeof (mp->data))
366 clib_spinlock_lock (&vcm->workers_lock);
368 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
372 wrk = vcl_worker_get_current ();
373 mq = vcl_worker_ctrl_mq (wrk);
374 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
375 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
376 mp->client_index = wrk->my_client_index;
377 mp->wrk_index = dst_wrk->vpp_wrk_index;
378 clib_memcpy (mp->data, data, data_len);
379 app_send_ctrl_evt_to_vpp (mq, app_evt);
383 clib_spinlock_unlock (&vcm->workers_lock);
388 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
391 vcl_session_t *session, *listen_session;
392 svm_fifo_t *rx_fifo, *tx_fifo;
396 session = vcl_session_alloc (wrk);
398 listen_session = vcl_session_get (wrk, ls_index);
399 if (listen_session->vpp_handle != mp->listener_handle)
401 VDBG (0, "ERROR: listener handle %lu does not match session %u",
402 mp->listener_handle, ls_index);
406 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
408 VDBG (0, "ERROR: segment for session %u is not mounted!",
409 session->session_index);
413 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
414 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
415 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
417 rx_fifo->client_session_index = session->session_index;
418 tx_fifo->client_session_index = session->session_index;
419 rx_fifo->client_thread_index = vcl_get_worker_index ();
420 tx_fifo->client_thread_index = vcl_get_worker_index ();
421 vpp_wrk_index = tx_fifo->master_thread_index;
422 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
423 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
425 session->vpp_handle = mp->handle;
426 session->vpp_thread_index = rx_fifo->master_thread_index;
427 session->rx_fifo = rx_fifo;
428 session->tx_fifo = tx_fifo;
430 session->session_state = STATE_ACCEPT;
431 session->transport.rmt_port = mp->rmt.port;
432 session->transport.is_ip4 = mp->rmt.is_ip4;
433 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
434 sizeof (ip46_address_t));
436 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
437 session->transport.lcl_port = listen_session->transport.lcl_port;
438 session->transport.lcl_ip = listen_session->transport.lcl_ip;
439 session->session_type = listen_session->session_type;
440 session->is_dgram = vcl_proto_is_dgram (session->session_type);
441 session->listener_index = listen_session->session_index;
442 listen_session->n_accepted_sessions++;
444 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
445 " port %d queue %p!", session->session_index, mp->handle,
446 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
447 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
448 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
449 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
451 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
452 session->vpp_handle, 0);
454 return session->session_index;
457 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
458 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
459 VNET_API_ERROR_INVALID_ARGUMENT);
460 vcl_session_free (wrk, session);
461 return VCL_INVALID_SESSION_INDEX;
465 vcl_session_connected_handler (vcl_worker_t * wrk,
466 session_connected_msg_t * mp)
468 u32 session_index, vpp_wrk_index;
469 svm_fifo_t *rx_fifo, *tx_fifo;
470 vcl_session_t *session = 0;
472 session_index = mp->context;
473 session = vcl_session_get (wrk, session_index);
476 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
477 mp->handle, session_index);
478 return VCL_INVALID_SESSION_INDEX;
482 VDBG (0, "ERROR: session index %u: connect failed! %U",
483 session_index, format_session_error, mp->retval);
484 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
485 session->vpp_handle = mp->handle;
486 return session_index;
489 session->vpp_handle = mp->handle;
490 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
492 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
493 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
494 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
496 VDBG (0, "segment for session %u is not mounted!",
497 session->session_index);
498 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
499 vcl_send_session_disconnect (wrk, session);
500 return session_index;
503 rx_fifo->client_session_index = session_index;
504 tx_fifo->client_session_index = session_index;
505 rx_fifo->client_thread_index = vcl_get_worker_index ();
506 tx_fifo->client_thread_index = vcl_get_worker_index ();
508 vpp_wrk_index = tx_fifo->master_thread_index;
509 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
510 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
514 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
515 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
516 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
518 VDBG (0, "ct segment for session %u is not mounted!",
519 session->session_index);
520 session->session_state = STATE_DETACHED | STATE_DISCONNECT;
521 vcl_send_session_disconnect (wrk, session);
522 return session_index;
526 session->rx_fifo = rx_fifo;
527 session->tx_fifo = tx_fifo;
528 session->vpp_thread_index = rx_fifo->master_thread_index;
529 session->transport.is_ip4 = mp->lcl.is_ip4;
530 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
531 sizeof (session->transport.lcl_ip));
532 session->transport.lcl_port = mp->lcl.port;
534 /* Application closed session before connect reply */
535 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)
536 && session->session_state == STATE_CLOSED)
537 vcl_send_session_disconnect (wrk, session);
539 session->session_state = STATE_CONNECT;
541 /* Add it to lookup table */
542 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
544 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
545 " refcnt %d", session_index, mp->handle, session->rx_fifo,
546 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
548 return session_index;
552 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
554 vcl_session_msg_t *accepted_msg;
557 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
559 accepted_msg = &session->accept_evts_fifo[i];
560 if (accepted_msg->accepted_msg.handle == handle)
562 accepted_msg->flags |= flags;
570 vcl_session_reset_handler (vcl_worker_t * wrk,
571 session_reset_msg_t * reset_msg)
573 vcl_session_t *session;
576 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
577 session = vcl_session_get (wrk, sid);
580 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
581 return VCL_INVALID_SESSION_INDEX;
584 /* Caught a reset before actually accepting the session */
585 if (session->session_state == STATE_LISTEN)
588 if (!vcl_flag_accepted_session (session, reset_msg->handle,
589 VCL_ACCEPTED_F_RESET))
590 VDBG (0, "session was not accepted!");
591 return VCL_INVALID_SESSION_INDEX;
594 if (session->session_state != STATE_CLOSED)
595 session->session_state = STATE_DISCONNECT;
596 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
601 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
603 vcl_session_t *session;
604 u32 sid = mp->context;
606 session = vcl_session_get (wrk, sid);
609 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
610 format_session_error, mp->retval);
613 session->session_state = STATE_DETACHED;
614 session->vpp_handle = mp->handle;
619 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
621 return VCL_INVALID_SESSION_INDEX;
625 session->vpp_handle = mp->handle;
626 session->transport.is_ip4 = mp->lcl_is_ip4;
627 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
628 sizeof (ip46_address_t));
629 session->transport.lcl_port = mp->lcl_port;
630 vcl_session_table_add_listener (wrk, mp->handle, sid);
631 session->session_state = STATE_LISTEN;
633 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
634 vec_validate (wrk->vpp_event_queues, 0);
635 wrk->vpp_event_queues[0] = session->vpp_evt_q;
637 if (vcl_session_is_cl (session))
639 svm_fifo_t *rx_fifo, *tx_fifo;
640 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
641 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
642 rx_fifo->client_session_index = sid;
643 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
644 tx_fifo->client_session_index = sid;
645 session->rx_fifo = rx_fifo;
646 session->tx_fifo = tx_fifo;
649 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
654 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
656 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
659 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
662 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
665 if (s->session_state != STATE_DISCONNECT)
667 /* Connected udp listener */
668 if (s->session_type == VPPCOM_PROTO_UDP
669 && s->session_state == STATE_CLOSED)
672 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
677 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
678 s->session_index, mp->handle, format_session_error, mp->retval);
680 if (mp->context != wrk->wrk_index)
681 VDBG (0, "wrong context");
683 vcl_session_table_del_vpp_handle (wrk, mp->handle);
684 vcl_session_free (wrk, s);
688 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
690 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
693 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
696 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
700 s->vpp_thread_index = mp->vpp_thread_index;
701 s->vpp_handle = mp->new_handle;
702 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
704 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
705 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
707 vcl_session_table_del_vpp_handle (wrk, mp->handle);
708 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
710 /* Generate new tx event if we have outstanding data */
711 if (svm_fifo_has_event (s->tx_fifo))
712 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
713 SESSION_IO_EVT_TX, SVM_Q_WAIT);
715 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
716 s->vpp_thread_index, mp->new_handle);
719 static vcl_session_t *
720 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
722 vcl_session_msg_t *vcl_msg;
723 vcl_session_t *session;
725 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
726 if (PREDICT_FALSE (session != 0))
727 VWRN ("session overlap handle %lu state %u!", msg->handle,
728 session->session_state);
730 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
733 VERR ("couldn't find listen session: listener handle %llx",
734 msg->listener_handle);
738 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
740 vcl_msg->accepted_msg = *msg;
741 /* Session handle points to listener until fully accepted by app */
742 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
747 static vcl_session_t *
748 vcl_session_disconnected_handler (vcl_worker_t * wrk,
749 session_disconnected_msg_t * msg)
751 vcl_session_t *session;
753 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
756 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
760 /* Late disconnect notification on a session that has been closed */
761 if (session->session_state == STATE_CLOSED)
764 /* Caught a disconnect before actually accepting the session */
765 if (session->session_state == STATE_LISTEN)
767 if (!vcl_flag_accepted_session (session, msg->handle,
768 VCL_ACCEPTED_F_CLOSED))
769 VDBG (0, "session was not accepted!");
773 /* If not already reset change state */
774 if (session->session_state != STATE_DISCONNECT)
775 session->session_state = STATE_VPP_CLOSING;
781 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
783 session_cleanup_msg_t *msg;
784 vcl_session_t *session;
786 msg = (session_cleanup_msg_t *) data;
787 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
790 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
794 if (msg->type == SESSION_CLEANUP_TRANSPORT)
796 /* Transport was cleaned up before we confirmed close. Probably the
797 * app is still waiting for some data that cannot be delivered.
798 * Confirm close to make sure everything is cleaned up */
799 if (session->session_state == STATE_VPP_CLOSING)
800 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
801 1 /* do_disconnect */ );
805 vcl_session_table_del_vpp_handle (wrk, msg->handle);
806 /* Should not happen. App did not close the connection so don't free it. */
807 if (session->session_state != STATE_CLOSED)
809 VDBG (0, "app did not close session %d", session->session_index);
810 session->session_state = STATE_DETACHED;
811 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
814 vcl_session_free (wrk, session);
818 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
820 session_req_worker_update_msg_t *msg;
823 msg = (session_req_worker_update_msg_t *) data;
824 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
828 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
832 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
834 session_worker_update_reply_msg_t *msg;
837 msg = (session_worker_update_reply_msg_t *) data;
838 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
841 VDBG (0, "unknown handle 0x%llx", msg->handle);
844 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
846 clib_warning ("segment for session %u is not mounted!",
853 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
854 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
855 s->rx_fifo->client_session_index = s->session_index;
856 s->tx_fifo->client_session_index = s->session_index;
857 s->rx_fifo->client_thread_index = wrk->wrk_index;
858 s->tx_fifo->client_thread_index = wrk->wrk_index;
860 s->session_state = STATE_UPDATED;
862 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
863 s->vpp_handle, wrk->wrk_index);
867 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
869 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
870 session_app_add_segment_msg_t *msg;
874 msg = (session_app_add_segment_msg_t *) data;
878 vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5);
879 seg_type = SSVM_SEGMENT_MEMFD;
882 segment_handle = msg->segment_handle;
883 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
885 clib_warning ("invalid segment handle");
889 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
892 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
896 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
901 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
903 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
904 vcl_segment_detach (msg->segment_handle);
905 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
909 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
911 if (!vcm->wrk_rpc_fn)
914 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
918 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
920 session_disconnected_msg_t *disconnected_msg;
921 vcl_session_t *session;
923 switch (e->event_type)
925 case SESSION_IO_EVT_RX:
926 case SESSION_IO_EVT_TX:
927 session = vcl_session_get (wrk, e->session_index);
928 if (!session || !(session->session_state & STATE_OPEN))
930 vec_add1 (wrk->unhandled_evts_vector, *e);
932 case SESSION_CTRL_EVT_ACCEPTED:
933 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
935 case SESSION_CTRL_EVT_CONNECTED:
936 vcl_session_connected_handler (wrk,
937 (session_connected_msg_t *) e->data);
939 case SESSION_CTRL_EVT_DISCONNECTED:
940 disconnected_msg = (session_disconnected_msg_t *) e->data;
941 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
944 VDBG (0, "disconnected session %u [0x%llx]", session->session_index,
945 session->vpp_handle);
947 case SESSION_CTRL_EVT_RESET:
948 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
950 case SESSION_CTRL_EVT_BOUND:
951 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
953 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
954 vcl_session_unlisten_reply_handler (wrk, e->data);
956 case SESSION_CTRL_EVT_MIGRATED:
957 vcl_session_migrated_handler (wrk, e->data);
959 case SESSION_CTRL_EVT_CLEANUP:
960 vcl_session_cleanup_handler (wrk, e->data);
962 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
963 vcl_session_req_worker_update_handler (wrk, e->data);
965 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
966 vcl_session_worker_update_reply_handler (wrk, e->data);
968 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
969 vcl_session_app_add_segment_handler (wrk, e->data);
971 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
972 vcl_session_app_del_segment_handler (wrk, e->data);
974 case SESSION_CTRL_EVT_APP_WRK_RPC:
975 vcl_worker_rpc_handler (wrk, e->data);
978 clib_warning ("unhandled %u", e->event_type);
984 vppcom_wait_for_session_state_change (u32 session_index,
985 vcl_session_state_t state,
988 vcl_worker_t *wrk = vcl_worker_get_current ();
989 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
990 vcl_session_t *volatile session;
996 session = vcl_session_get (wrk, session_index);
997 if (PREDICT_FALSE (!session))
999 return VPPCOM_EBADFD;
1001 if (session->session_state & state)
1005 if (session->session_state & STATE_DETACHED)
1007 return VPPCOM_ECONNREFUSED;
1010 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1015 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1016 vcl_handle_mq_event (wrk, e);
1017 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1019 while (clib_time_now (&wrk->clib_time) < timeout);
1021 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1022 vppcom_session_state_str (state));
1023 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1025 return VPPCOM_ETIMEDOUT;
1029 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1031 vcl_session_state_t state;
1035 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1038 vec_foreach (sip, wrk->pending_session_wrk_updates)
1040 s = vcl_session_get (wrk, *sip);
1041 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1042 state = s->session_state;
1043 vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5);
1044 s->session_state = state;
1046 vec_reset_length (wrk->pending_session_wrk_updates);
1050 vcl_flush_mq_events (void)
1052 vcl_worker_t *wrk = vcl_worker_get_current ();
1053 svm_msg_q_msg_t *msg;
1058 mq = wrk->app_event_queue;
1059 svm_msg_q_lock (mq);
1060 vcl_mq_dequeue_batch (wrk, mq, ~0);
1061 svm_msg_q_unlock (mq);
1063 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1065 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1066 e = svm_msg_q_msg_data (mq, msg);
1067 vcl_handle_mq_event (wrk, e);
1068 svm_msg_q_free_msg (mq, msg);
1070 vec_reset_length (wrk->mq_msg_vector);
1071 vcl_handle_pending_wrk_updates (wrk);
1075 vppcom_app_session_enable (void)
1079 if (vcm->app_state != STATE_APP_ENABLED)
1081 vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ );
1082 rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED);
1083 if (PREDICT_FALSE (rv))
1085 VDBG (0, "application session enable timed out! returning %d (%s)",
1086 rv, vppcom_retval_str (rv));
1094 vppcom_app_attach (void)
1098 vppcom_app_send_attach ();
1099 rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED);
1100 if (PREDICT_FALSE (rv))
1102 VDBG (0, "application attach timed out! returning %d (%s)", rv,
1103 vppcom_retval_str (rv));
1111 vppcom_session_unbind (u32 session_handle)
1113 vcl_worker_t *wrk = vcl_worker_get_current ();
1114 session_accepted_msg_t *accepted_msg;
1115 vcl_session_t *session = 0;
1116 vcl_session_msg_t *evt;
1118 session = vcl_session_get_w_handle (wrk, session_handle);
1120 return VPPCOM_EBADFD;
1122 /* Flush pending accept events, if any */
1123 while (clib_fifo_elts (session->accept_evts_fifo))
1125 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1126 accepted_msg = &evt->accepted_msg;
1127 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1128 vcl_send_session_accepted_reply (session->vpp_evt_q,
1129 accepted_msg->context,
1130 session->vpp_handle, -1);
1132 clib_fifo_free (session->accept_evts_fifo);
1134 vcl_send_session_unlisten (wrk, session);
1136 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1137 session->vpp_handle);
1138 vcl_evt (VCL_EVT_UNBIND, session);
1140 session->vpp_handle = ~0;
1141 session->session_state = STATE_DISCONNECT;
1147 vppcom_session_disconnect (u32 session_handle)
1149 vcl_worker_t *wrk = vcl_worker_get_current ();
1150 svm_msg_q_t *vpp_evt_q;
1151 vcl_session_t *session, *listen_session;
1152 vcl_session_state_t state;
1155 session = vcl_session_get_w_handle (wrk, session_handle);
1157 return VPPCOM_EBADFD;
1159 vpp_handle = session->vpp_handle;
1160 state = session->session_state;
1162 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1163 vpp_handle, state, vppcom_session_state_str (state));
1165 if (PREDICT_FALSE (state & STATE_LISTEN))
1167 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1168 return VPPCOM_EBADFD;
1171 if (state & STATE_VPP_CLOSING)
1173 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1174 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index,
1176 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1177 session->session_index, vpp_handle);
1181 /* Session doesn't have an event queue yet. Probably a non-blocking
1182 * connect. Wait for the reply */
1183 if (PREDICT_FALSE (!session->vpp_evt_q))
1186 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1187 session->session_index, vpp_handle);
1188 vcl_send_session_disconnect (wrk, session);
1191 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1193 listen_session = vcl_session_get (wrk, session->listener_index);
1194 listen_session->n_accepted_sessions--;
1203 * Notify vpp of the disconnect and mark the worker as free. If we're the
1204 * last worker, do a full cleanup otherwise, since we're probably a forked
1205 * child, avoid syscalls as much as possible. We might've lost privileges.
1208 vppcom_app_exit (void)
1210 if (!pool_elts (vcm->workers))
1212 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1213 vcl_set_worker_index (~0);
1214 vcl_elog_stop (vcm);
1218 * VPPCOM Public API functions
1221 vppcom_app_create (const char *app_name)
1223 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1228 VDBG (1, "already initialized");
1229 return VPPCOM_EEXIST;
1233 vppcom_cfg (&vcm->cfg);
1234 vcl_cfg = &vcm->cfg;
1236 vcm->main_cpu = pthread_self ();
1237 vcm->main_pid = getpid ();
1238 vcm->app_name = format (0, "%s", app_name);
1239 vppcom_init_error_string_table ();
1240 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1241 20 /* timeout in secs */ );
1242 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1243 clib_spinlock_init (&vcm->workers_lock);
1244 clib_rwlock_init (&vcm->segment_table_lock);
1245 atexit (vppcom_app_exit);
1247 /* Allocate default worker */
1248 vcl_worker_alloc_and_init ();
1250 /* API hookup and connect to VPP */
1251 vcl_elog_init (vcm);
1252 vcm->app_state = STATE_APP_START;
1253 rv = vppcom_connect_to_vpp (app_name);
1256 VERR ("couldn't connect to VPP!");
1259 VDBG (0, "sending session enable");
1260 rv = vppcom_app_session_enable ();
1263 VERR ("vppcom_app_session_enable() failed!");
1267 VDBG (0, "sending app attach");
1268 rv = vppcom_app_attach ();
1271 VERR ("vppcom_app_attach() failed!");
1275 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1276 vcm->workers[0].my_client_index, vcm->workers[0].my_client_index);
1282 vppcom_app_destroy (void)
1284 vcl_worker_t *wrk, *current_wrk;
1285 struct dlmallinfo mi;
1288 if (!pool_elts (vcm->workers))
1291 vcl_evt (VCL_EVT_DETACH, vcm);
1293 current_wrk = vcl_worker_get_current ();
1296 pool_foreach (wrk, vcm->workers, ({
1297 if (current_wrk != wrk)
1298 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1302 vcl_send_app_detach (current_wrk);
1303 vppcom_disconnect_from_vpp ();
1304 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1306 vcl_elog_stop (vcm);
1309 * Free the heap and fix vcm
1311 heap = clib_mem_get_heap ();
1312 mi = mspace_mallinfo (heap);
1313 munmap (mspace_least_addr (heap), mi.arena);
1315 vcm = &_vppcom_main;
1320 vppcom_session_create (u8 proto, u8 is_nonblocking)
1322 vcl_worker_t *wrk = vcl_worker_get_current ();
1323 vcl_session_t *session;
1325 session = vcl_session_alloc (wrk);
1327 session->session_type = proto;
1328 session->session_state = STATE_CLOSED;
1329 session->vpp_handle = ~0;
1330 session->is_dgram = vcl_proto_is_dgram (proto);
1333 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1335 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1336 is_nonblocking, session_index);
1338 VDBG (0, "created session %u", session->session_index);
1340 return vcl_session_handle (session);
1344 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session,
1345 vcl_session_handle_t sh, u8 do_disconnect)
1347 vcl_session_state_t state;
1348 u32 next_sh, vep_sh;
1353 is_vep = session->is_vep;
1354 next_sh = session->vep.next_sh;
1355 vep_sh = session->vep.vep_sh;
1356 state = session->session_state;
1357 vpp_handle = session->vpp_handle;
1359 VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle);
1363 while (next_sh != ~0)
1365 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1366 if (PREDICT_FALSE (rv < 0))
1367 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1368 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1369 vppcom_retval_str (rv));
1371 next_sh = session->vep.next_sh;
1376 if (session->is_vep_session)
1378 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1380 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1381 "failed! rv %d (%s)", session->session_index, vpp_handle,
1382 vep_sh, rv, vppcom_retval_str (rv));
1387 VDBG (1, "session %u [0x%llx] disconnect skipped",
1388 session->session_index, vpp_handle);
1392 if (state & STATE_LISTEN)
1394 rv = vppcom_session_unbind (sh);
1395 if (PREDICT_FALSE (rv < 0))
1396 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1397 "rv %d (%s)", session->session_index, vpp_handle, rv,
1398 vppcom_retval_str (rv));
1401 else if ((state & STATE_OPEN)
1402 || (vcl_session_is_connectable_listener (wrk, session)))
1404 rv = vppcom_session_disconnect (sh);
1405 if (PREDICT_FALSE (rv < 0))
1406 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1407 " rv %d (%s)", session->session_index, vpp_handle,
1408 rv, vppcom_retval_str (rv));
1410 else if (state == STATE_DISCONNECT)
1412 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session);
1413 vcl_send_session_reset_reply (mq, wrk->my_client_index,
1414 session->vpp_handle, 0);
1416 else if (state == STATE_DETACHED)
1418 /* Should not happen. VPP cleaned up before app confirmed close */
1419 VDBG (0, "vpp freed session %d before close", session->session_index);
1423 session->session_state = STATE_CLOSED;
1425 /* Session is removed only after vpp confirms the disconnect */
1429 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1431 vcl_session_free (wrk, session);
1432 vcl_evt (VCL_EVT_CLOSE, session, rv);
1438 vppcom_session_close (uint32_t session_handle)
1440 vcl_worker_t *wrk = vcl_worker_get_current ();
1441 vcl_session_t *session;
1443 session = vcl_session_get_w_handle (wrk, session_handle);
1445 return VPPCOM_EBADFD;
1446 return vcl_session_cleanup (wrk, session, session_handle,
1447 1 /* do_disconnect */ );
1451 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1453 vcl_worker_t *wrk = vcl_worker_get_current ();
1454 vcl_session_t *session = 0;
1457 return VPPCOM_EINVAL;
1459 session = vcl_session_get_w_handle (wrk, session_handle);
1461 return VPPCOM_EBADFD;
1463 if (session->is_vep)
1465 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1466 session->session_index);
1467 return VPPCOM_EBADFD;
1470 session->transport.is_ip4 = ep->is_ip4;
1472 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1473 sizeof (ip4_address_t));
1475 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1476 sizeof (ip6_address_t));
1477 session->transport.lcl_port = ep->port;
1479 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1480 "proto %s", session->session_index, session_handle,
1481 session->transport.is_ip4 ? "IPv4" : "IPv6",
1482 format_ip46_address, &session->transport.lcl_ip,
1483 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1484 clib_net_to_host_u16 (session->transport.lcl_port),
1485 vppcom_proto_str (session->session_type));
1486 vcl_evt (VCL_EVT_BIND, session);
1488 if (session->session_type == VPPCOM_PROTO_UDP)
1489 vppcom_session_listen (session_handle, 10);
1495 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1497 vcl_worker_t *wrk = vcl_worker_get_current ();
1498 vcl_session_t *listen_session = 0;
1499 u64 listen_vpp_handle;
1502 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1503 if (!listen_session || listen_session->is_vep)
1504 return VPPCOM_EBADFD;
1506 if (q_len == 0 || q_len == ~0)
1507 q_len = vcm->cfg.listen_queue_size;
1509 listen_vpp_handle = listen_session->vpp_handle;
1510 if (listen_session->session_state & STATE_LISTEN)
1512 VDBG (0, "session %u [0x%llx]: already in listen state!",
1513 listen_sh, listen_vpp_handle);
1517 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1520 * Send listen request to vpp and wait for reply
1522 vcl_send_session_listen (wrk, listen_session);
1523 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1525 vcm->cfg.session_timeout);
1527 if (PREDICT_FALSE (rv))
1529 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1530 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1531 listen_sh, listen_session->vpp_handle, rv,
1532 vppcom_retval_str (rv));
1540 vppcom_session_tls_add_cert (uint32_t session_handle, char *cert,
1544 vcl_worker_t *wrk = vcl_worker_get_current ();
1545 vcl_session_t *session = 0;
1547 session = vcl_session_get_w_handle (wrk, session_handle);
1549 return VPPCOM_EBADFD;
1551 if (cert_len == 0 || cert_len == ~0)
1552 return VPPCOM_EBADFD;
1555 * Send listen request to vpp and wait for reply
1557 vppcom_send_application_tls_cert_add (session, cert, cert_len);
1558 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1559 vcl_wait_for_app_state_change (STATE_APP_READY);
1565 vppcom_session_tls_add_key (uint32_t session_handle, char *key,
1569 vcl_worker_t *wrk = vcl_worker_get_current ();
1570 vcl_session_t *session = 0;
1572 session = vcl_session_get_w_handle (wrk, session_handle);
1574 return VPPCOM_EBADFD;
1576 if (key_len == 0 || key_len == ~0)
1577 return VPPCOM_EBADFD;
1579 vppcom_send_application_tls_key_add (session, key, key_len);
1580 vcm->app_state = STATE_APP_ADDING_TLS_DATA;
1581 vcl_wait_for_app_state_change (STATE_APP_READY);
1586 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1590 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1592 return VPPCOM_EBADFD;
1595 if ((ls->session_state != STATE_LISTEN)
1596 && (!vcl_session_is_connectable_listener (wrk, ls)))
1599 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1600 " (%s)", ls->vpp_handle, ls->session_state,
1601 vppcom_session_state_str (ls->session_state));
1602 return VPPCOM_EBADFD;
1608 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1610 if (!strcmp (proto_str, "TCP"))
1611 *proto = VPPCOM_PROTO_TCP;
1612 else if (!strcmp (proto_str, "tcp"))
1613 *proto = VPPCOM_PROTO_TCP;
1614 else if (!strcmp (proto_str, "UDP"))
1615 *proto = VPPCOM_PROTO_UDP;
1616 else if (!strcmp (proto_str, "udp"))
1617 *proto = VPPCOM_PROTO_UDP;
1618 else if (!strcmp (proto_str, "TLS"))
1619 *proto = VPPCOM_PROTO_TLS;
1620 else if (!strcmp (proto_str, "tls"))
1621 *proto = VPPCOM_PROTO_TLS;
1622 else if (!strcmp (proto_str, "QUIC"))
1623 *proto = VPPCOM_PROTO_QUIC;
1624 else if (!strcmp (proto_str, "quic"))
1625 *proto = VPPCOM_PROTO_QUIC;
1632 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1635 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1636 vcl_worker_t *wrk = vcl_worker_get_current ();
1637 session_accepted_msg_t accepted_msg;
1638 vcl_session_t *listen_session = 0;
1639 vcl_session_t *client_session = 0;
1640 vcl_session_msg_t *evt;
1641 svm_msg_q_msg_t msg;
1646 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1647 if (!listen_session)
1648 return VPPCOM_EBADFD;
1650 listen_session_index = listen_session->session_index;
1651 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1654 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1656 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1657 accept_flags = evt->flags;
1658 accepted_msg = evt->accepted_msg;
1662 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1663 VCL_SESS_ATTR_NONBLOCK);
1666 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1667 return VPPCOM_EAGAIN;
1669 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1670 return VPPCOM_EAGAIN;
1672 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1673 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1675 vcl_handle_mq_event (wrk, e);
1676 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1679 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1680 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1686 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1687 listen_session_index);
1688 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1689 return VPPCOM_ECONNABORTED;
1691 listen_session = vcl_session_get (wrk, listen_session_index);
1692 client_session = vcl_session_get (wrk, client_session_index);
1694 if (flags & O_NONBLOCK)
1695 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1697 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1698 " flags %d, is_nonblocking %u", listen_session->session_index,
1699 listen_session->vpp_handle, client_session_index,
1700 client_session->vpp_handle, flags,
1701 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1705 ep->is_ip4 = client_session->transport.is_ip4;
1706 ep->port = client_session->transport.rmt_port;
1707 if (client_session->transport.is_ip4)
1708 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1709 sizeof (ip4_address_t));
1711 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1712 sizeof (ip6_address_t));
1715 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1716 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1717 client_session_index, client_session->vpp_handle,
1718 format_ip46_address, &client_session->transport.rmt_ip,
1719 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1720 clib_net_to_host_u16 (client_session->transport.rmt_port),
1721 format_ip46_address, &client_session->transport.lcl_ip,
1722 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1723 clib_net_to_host_u16 (client_session->transport.lcl_port));
1724 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1725 client_session_index);
1728 * Session might have been closed already
1732 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1733 client_session->session_state = STATE_VPP_CLOSING;
1734 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1735 client_session->session_state = STATE_DISCONNECT;
1737 return vcl_session_handle (client_session);
1741 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1743 vcl_worker_t *wrk = vcl_worker_get_current ();
1744 vcl_session_t *session = 0;
1748 session = vcl_session_get_w_handle (wrk, session_handle);
1750 return VPPCOM_EBADFD;
1751 session_index = session->session_index;
1753 if (PREDICT_FALSE (session->is_vep))
1755 VDBG (0, "ERROR: cannot connect epoll session %u!",
1756 session->session_index);
1757 return VPPCOM_EBADFD;
1760 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1762 VDBG (0, "session handle %u [0x%llx]: session already "
1763 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1764 session_handle, session->vpp_handle,
1765 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1766 &session->transport.rmt_ip, session->transport.is_ip4 ?
1767 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1768 clib_net_to_host_u16 (session->transport.rmt_port),
1769 vppcom_proto_str (session->session_type), session->session_state,
1770 vppcom_session_state_str (session->session_state));
1774 /* Attempt to connect a connectionless listener */
1775 if (PREDICT_FALSE (session->session_state & STATE_LISTEN))
1777 if (session->session_type != VPPCOM_PROTO_UDP)
1778 return VPPCOM_EINVAL;
1779 vcl_send_session_unlisten (wrk, session);
1780 session->session_state = STATE_CLOSED;
1783 session->transport.is_ip4 = server_ep->is_ip4;
1784 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1785 session->transport.rmt_port = server_ep->port;
1786 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1787 session->flags |= VCL_SESSION_F_CONNECTED;
1789 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1790 "port %d proto %s", session_handle,
1791 vppcom_session_state_str (session->session_state),
1792 session->transport.is_ip4 ? "IPv4" : "IPv6",
1793 format_ip46_address,
1794 &session->transport.rmt_ip, session->transport.is_ip4 ?
1795 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1796 clib_net_to_host_u16 (session->transport.rmt_port),
1797 vppcom_proto_str (session->session_type));
1799 vcl_send_session_connect (wrk, session);
1801 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1803 session->session_state = STATE_CONNECT;
1804 return VPPCOM_EINPROGRESS;
1808 * Wait for reply from vpp if blocking
1810 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1811 vcm->cfg.session_timeout);
1813 session = vcl_session_get (wrk, session_index);
1814 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1815 session->vpp_handle, rv ? "failed" : "succeeded");
1821 vppcom_session_stream_connect (uint32_t session_handle,
1822 uint32_t parent_session_handle)
1824 vcl_worker_t *wrk = vcl_worker_get_current ();
1825 vcl_session_t *session, *parent_session;
1826 u32 session_index, parent_session_index;
1829 session = vcl_session_get_w_handle (wrk, session_handle);
1831 return VPPCOM_EBADFD;
1832 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1833 if (!parent_session)
1834 return VPPCOM_EBADFD;
1836 session_index = session->session_index;
1837 parent_session_index = parent_session->session_index;
1838 if (PREDICT_FALSE (session->is_vep))
1840 VDBG (0, "ERROR: cannot connect epoll session %u!",
1841 session->session_index);
1842 return VPPCOM_EBADFD;
1845 if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN))
1847 VDBG (0, "session handle %u [0x%llx]: session already "
1848 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1849 session_handle, session->vpp_handle,
1850 parent_session_handle, parent_session->vpp_handle,
1851 vppcom_proto_str (session->session_type), session->session_state,
1852 vppcom_session_state_str (session->session_state));
1856 /* Connect to quic session specifics */
1857 session->transport.is_ip4 = parent_session->transport.is_ip4;
1858 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1859 session->transport.rmt_port = 0;
1860 session->parent_handle = parent_session->vpp_handle;
1862 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1863 session_handle, parent_session_handle, parent_session->vpp_handle);
1866 * Send connect request and wait for reply from vpp
1868 vcl_send_session_connect (wrk, session);
1869 rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT,
1870 vcm->cfg.session_timeout);
1872 session->listener_index = parent_session_index;
1873 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1875 parent_session->n_accepted_sessions++;
1877 session = vcl_session_get (wrk, session_index);
1878 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1879 session->vpp_handle, rv ? "failed" : "succeeded");
1885 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1887 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1891 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1894 vcl_worker_t *wrk = vcl_worker_get_current ();
1895 int rv, n_read = 0, is_nonblocking;
1896 vcl_session_t *s = 0;
1897 svm_fifo_t *rx_fifo;
1898 svm_msg_q_msg_t msg;
1903 if (PREDICT_FALSE (!buf))
1904 return VPPCOM_EINVAL;
1906 s = vcl_session_get_w_handle (wrk, session_handle);
1907 if (PREDICT_FALSE (!s || s->is_vep))
1908 return VPPCOM_EBADFD;
1910 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1912 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1913 s->session_index, s->vpp_handle, s->session_state,
1914 vppcom_session_state_str (s->session_state));
1915 return vcl_session_closed_error (s);
1918 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1919 is_ct = vcl_session_is_ct (s);
1920 mq = wrk->app_event_queue;
1921 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1924 if (svm_fifo_is_empty_cons (rx_fifo))
1928 if (vcl_session_is_closing (s))
1929 return vcl_session_closing_error (s);
1930 svm_fifo_unset_event (s->rx_fifo);
1931 return VPPCOM_EWOULDBLOCK;
1933 while (svm_fifo_is_empty_cons (rx_fifo))
1935 if (vcl_session_is_closing (s))
1936 return vcl_session_closing_error (s);
1938 svm_fifo_unset_event (s->rx_fifo);
1939 svm_msg_q_lock (mq);
1940 if (svm_msg_q_is_empty (mq))
1941 svm_msg_q_wait (mq);
1943 svm_msg_q_sub_w_lock (mq, &msg);
1944 e = svm_msg_q_msg_data (mq, &msg);
1945 svm_msg_q_unlock (mq);
1946 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1947 vcl_handle_mq_event (wrk, e);
1948 svm_msg_q_free_msg (mq, &msg);
1955 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1957 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1962 if (svm_fifo_is_empty_cons (rx_fifo))
1964 svm_fifo_unset_event (s->rx_fifo);
1965 if (!svm_fifo_is_empty_cons (rx_fifo)
1966 && svm_fifo_set_event (s->rx_fifo) && is_nonblocking)
1968 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1969 e->event_type = SESSION_IO_EVT_RX;
1970 e->session_index = s->session_index;
1973 else if (PREDICT_FALSE (rv < n))
1975 /* More data enqueued while reading. Try to drain it
1976 * or fill the buffer */
1982 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1984 svm_fifo_clear_deq_ntf (rx_fifo);
1985 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1986 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1989 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1990 s->vpp_handle, n_read, rx_fifo);
1996 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1998 return (vppcom_session_read_internal (session_handle, buf, n, 0));
2002 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
2004 return (vppcom_session_read_internal (session_handle, buf, n, 1));
2008 vppcom_session_read_segments (uint32_t session_handle,
2009 vppcom_data_segments_t ds)
2011 vcl_worker_t *wrk = vcl_worker_get_current ();
2012 int n_read = 0, is_nonblocking;
2013 vcl_session_t *s = 0;
2014 svm_fifo_t *rx_fifo;
2015 svm_msg_q_msg_t msg;
2020 s = vcl_session_get_w_handle (wrk, session_handle);
2021 if (PREDICT_FALSE (!s || s->is_vep))
2022 return VPPCOM_EBADFD;
2024 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2025 return vcl_session_closed_error (s);
2027 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2028 is_ct = vcl_session_is_ct (s);
2029 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
2030 rx_fifo = s->rx_fifo;
2034 svm_fifo_unset_event (s->rx_fifo);
2036 if (svm_fifo_is_empty_cons (rx_fifo))
2040 svm_fifo_unset_event (rx_fifo);
2041 return VPPCOM_EWOULDBLOCK;
2043 while (svm_fifo_is_empty_cons (rx_fifo))
2045 if (vcl_session_is_closing (s))
2046 return vcl_session_closing_error (s);
2048 svm_fifo_unset_event (rx_fifo);
2049 svm_msg_q_lock (mq);
2050 if (svm_msg_q_is_empty (mq))
2051 svm_msg_q_wait (mq);
2053 svm_msg_q_sub_w_lock (mq, &msg);
2054 e = svm_msg_q_msg_data (mq, &msg);
2055 svm_msg_q_unlock (mq);
2056 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
2057 vcl_handle_mq_event (wrk, e);
2058 svm_msg_q_free_msg (mq, &msg);
2062 n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds);
2063 svm_fifo_unset_event (rx_fifo);
2069 vppcom_session_free_segments (uint32_t session_handle,
2070 vppcom_data_segments_t ds)
2072 vcl_worker_t *wrk = vcl_worker_get_current ();
2075 s = vcl_session_get_w_handle (wrk, session_handle);
2076 if (PREDICT_FALSE (!s || s->is_vep))
2079 svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds);
2083 vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes)
2085 u32 first_copy = clib_min (ds[0].len, max_bytes);
2086 clib_memcpy_fast (buf, ds[0].data, first_copy);
2087 if (first_copy < max_bytes)
2089 clib_memcpy_fast (buf + first_copy, ds[1].data,
2090 clib_min (ds[1].len, max_bytes - first_copy));
2096 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2098 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2102 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2104 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2106 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2112 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2113 size_t n, u8 is_flush, u8 is_dgram)
2115 int n_write, is_nonblocking;
2116 session_evt_type_t et;
2117 svm_msg_q_msg_t msg;
2118 svm_fifo_t *tx_fifo;
2123 if (PREDICT_FALSE (!buf || n == 0))
2124 return VPPCOM_EINVAL;
2126 if (PREDICT_FALSE (s->is_vep))
2128 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2129 " session!", s->session_index, s->vpp_handle);
2130 return VPPCOM_EBADFD;
2133 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2135 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2136 s->session_index, s->vpp_handle, s->session_state,
2137 vppcom_session_state_str (s->session_state));
2138 return vcl_session_closed_error (s);;
2141 is_ct = vcl_session_is_ct (s);
2142 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2143 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2145 mq = wrk->app_event_queue;
2146 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2150 return VPPCOM_EWOULDBLOCK;
2152 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2154 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2155 if (vcl_session_is_closing (s))
2156 return vcl_session_closing_error (s);
2157 svm_msg_q_lock (mq);
2158 if (svm_msg_q_is_empty (mq))
2159 svm_msg_q_wait (mq);
2161 svm_msg_q_sub_w_lock (mq, &msg);
2162 e = svm_msg_q_msg_data (mq, &msg);
2163 svm_msg_q_unlock (mq);
2165 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2166 vcl_handle_mq_event (wrk, e);
2167 svm_msg_q_free_msg (mq, &msg);
2171 et = SESSION_IO_EVT_TX;
2172 if (is_flush && !is_ct)
2173 et = SESSION_IO_EVT_TX_FLUSH;
2176 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2177 s->vpp_evt_q, buf, n, et,
2178 0 /* do_evt */ , SVM_Q_WAIT);
2180 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2181 0 /* do_evt */ , SVM_Q_WAIT);
2183 if (svm_fifo_set_event (s->tx_fifo))
2184 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2187 /* The underlying fifo segment can run out of memory */
2188 if (PREDICT_FALSE (n_write < 0))
2189 return VPPCOM_EAGAIN;
2191 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2192 s->vpp_handle, n_write);
2198 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2200 vcl_worker_t *wrk = vcl_worker_get_current ();
2203 s = vcl_session_get_w_handle (wrk, session_handle);
2204 if (PREDICT_FALSE (!s))
2205 return VPPCOM_EBADFD;
2207 return vppcom_session_write_inline (wrk, s, buf, n,
2208 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2212 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2214 vcl_worker_t *wrk = vcl_worker_get_current ();
2217 s = vcl_session_get_w_handle (wrk, session_handle);
2218 if (PREDICT_FALSE (!s))
2219 return VPPCOM_EBADFD;
2221 return vppcom_session_write_inline (wrk, s, buf, n,
2222 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2225 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2226 if (PREDICT_FALSE (!_s->rx_fifo)) \
2228 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2230 if (!vcl_session_is_ct (_s)) \
2232 svm_fifo_unset_event (_s->rx_fifo); \
2233 if (svm_fifo_is_empty (_s->rx_fifo)) \
2236 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2238 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2239 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2245 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2246 unsigned long n_bits, unsigned long *read_map,
2247 unsigned long *write_map,
2248 unsigned long *except_map, u32 * bits_set)
2250 session_disconnected_msg_t *disconnected_msg;
2251 session_connected_msg_t *connected_msg;
2252 vcl_session_t *session;
2255 switch (e->event_type)
2257 case SESSION_IO_EVT_RX:
2258 sid = e->session_index;
2259 session = vcl_session_get (wrk, sid);
2260 if (!session || !vcl_session_is_open (session))
2262 vcl_fifo_rx_evt_valid_or_break (session);
2263 if (sid < n_bits && read_map)
2265 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2269 case SESSION_IO_EVT_TX:
2270 sid = e->session_index;
2271 session = vcl_session_get (wrk, sid);
2272 if (!session || !vcl_session_is_open (session))
2274 if (sid < n_bits && write_map)
2276 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2280 case SESSION_CTRL_EVT_ACCEPTED:
2281 session = vcl_session_accepted (wrk,
2282 (session_accepted_msg_t *) e->data);
2285 sid = session->session_index;
2286 if (sid < n_bits && read_map)
2288 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2292 case SESSION_CTRL_EVT_CONNECTED:
2293 connected_msg = (session_connected_msg_t *) e->data;
2294 sid = vcl_session_connected_handler (wrk, connected_msg);
2295 if (sid == VCL_INVALID_SESSION_INDEX)
2297 if (sid < n_bits && write_map)
2299 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2303 case SESSION_CTRL_EVT_DISCONNECTED:
2304 disconnected_msg = (session_disconnected_msg_t *) e->data;
2305 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2308 sid = session->session_index;
2309 if (sid < n_bits && except_map)
2311 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2315 case SESSION_CTRL_EVT_RESET:
2316 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2317 if (sid < n_bits && except_map)
2319 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2323 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2324 vcl_session_unlisten_reply_handler (wrk, e->data);
2326 case SESSION_CTRL_EVT_MIGRATED:
2327 vcl_session_migrated_handler (wrk, e->data);
2329 case SESSION_CTRL_EVT_CLEANUP:
2330 vcl_session_cleanup_handler (wrk, e->data);
2332 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2333 vcl_session_worker_update_reply_handler (wrk, e->data);
2335 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2336 vcl_session_req_worker_update_handler (wrk, e->data);
2338 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2339 vcl_session_app_add_segment_handler (wrk, e->data);
2341 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2342 vcl_session_app_del_segment_handler (wrk, e->data);
2344 case SESSION_CTRL_EVT_APP_WRK_RPC:
2345 vcl_worker_rpc_handler (wrk, e->data);
2348 clib_warning ("unhandled: %u", e->event_type);
2354 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2355 unsigned long n_bits, unsigned long *read_map,
2356 unsigned long *write_map, unsigned long *except_map,
2357 double time_to_wait, u32 * bits_set)
2359 svm_msg_q_msg_t *msg;
2363 svm_msg_q_lock (mq);
2364 if (svm_msg_q_is_empty (mq))
2368 svm_msg_q_unlock (mq);
2374 svm_msg_q_unlock (mq);
2377 else if (time_to_wait < 0)
2379 svm_msg_q_wait (mq);
2383 if (svm_msg_q_timedwait (mq, time_to_wait))
2385 svm_msg_q_unlock (mq);
2390 vcl_mq_dequeue_batch (wrk, mq, ~0);
2391 svm_msg_q_unlock (mq);
2393 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2395 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2396 e = svm_msg_q_msg_data (mq, msg);
2397 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2398 except_map, bits_set);
2399 svm_msg_q_free_msg (mq, msg);
2401 vec_reset_length (wrk->mq_msg_vector);
2402 vcl_handle_pending_wrk_updates (wrk);
2407 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2408 vcl_si_set * read_map, vcl_si_set * write_map,
2409 vcl_si_set * except_map, double time_to_wait,
2412 double wait = 0, start = 0;
2416 wait = time_to_wait;
2417 start = clib_time_now (&wrk->clib_time);
2422 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2423 write_map, except_map, wait, bits_set);
2429 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2437 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2438 vcl_si_set * read_map, vcl_si_set * write_map,
2439 vcl_si_set * except_map, double time_to_wait,
2442 vcl_mq_evt_conn_t *mqc;
2443 int __clib_unused n_read;
2447 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2448 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2449 vec_len (wrk->mq_events), time_to_wait);
2450 for (i = 0; i < n_mq_evts; i++)
2452 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2453 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2454 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2455 except_map, 0, bits_set);
2458 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2462 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2463 vcl_si_set * except_map, double time_to_wait)
2465 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2466 vcl_worker_t *wrk = vcl_worker_get_current ();
2467 vcl_session_t *session = 0;
2470 if (n_bits && read_map)
2472 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2473 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2474 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2475 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2477 if (n_bits && write_map)
2479 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2480 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2481 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2482 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2484 if (n_bits && except_map)
2486 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2487 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2488 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2489 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2499 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2500 if (!(session = vcl_session_get (wrk, sid)))
2502 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2507 if (vcl_session_write_ready (session))
2509 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2513 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2520 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2521 if (!(session = vcl_session_get (wrk, sid)))
2523 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2528 if (vcl_session_read_ready (session))
2530 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2538 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2540 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2541 read_map, write_map, except_map, &bits_set);
2543 vec_reset_length (wrk->unhandled_evts_vector);
2545 if (vcm->cfg.use_mq_eventfd)
2546 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2547 time_to_wait, &bits_set);
2549 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2550 time_to_wait, &bits_set);
2556 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2558 vcl_session_t *session;
2559 vppcom_epoll_t *vep;
2560 u32 sh = vep_handle;
2562 if (VPPCOM_DEBUG <= 2)
2565 session = vcl_session_get_w_handle (wrk, vep_handle);
2566 if (PREDICT_FALSE (!session))
2568 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2571 if (PREDICT_FALSE (!session->is_vep))
2573 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2576 vep = &session->vep;
2577 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2580 " is_vep_session = %u\n"
2581 " next_sh = 0x%x (%u)\n"
2582 "}\n", vep_handle, session->is_vep, session->is_vep_session,
2583 vep->next_sh, vep->next_sh);
2585 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2587 session = vcl_session_get_w_handle (wrk, sh);
2588 if (PREDICT_FALSE (!session))
2590 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2593 if (PREDICT_FALSE (session->is_vep))
2595 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2597 else if (PREDICT_FALSE (!session->is_vep_session))
2599 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2602 vep = &session->vep;
2603 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2604 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2605 sh, session->vep.vep_sh, vep_handle);
2606 if (session->is_vep_session)
2608 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2610 " next_sh = 0x%x (%u)\n"
2611 " prev_sh = 0x%x (%u)\n"
2612 " vep_sh = 0x%x (%u)\n"
2613 " ev.events = 0x%x\n"
2614 " ev.data.u64 = 0x%llx\n"
2617 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2618 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2619 vep->ev.data.u64, vep->et_mask);
2624 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2628 vppcom_epoll_create (void)
2630 vcl_worker_t *wrk = vcl_worker_get_current ();
2631 vcl_session_t *vep_session;
2633 vep_session = vcl_session_alloc (wrk);
2635 vep_session->is_vep = 1;
2636 vep_session->vep.vep_sh = ~0;
2637 vep_session->vep.next_sh = ~0;
2638 vep_session->vep.prev_sh = ~0;
2639 vep_session->vpp_handle = ~0;
2641 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2642 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2644 return vcl_session_handle (vep_session);
2648 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2649 struct epoll_event *event)
2651 vcl_worker_t *wrk = vcl_worker_get_current ();
2652 vcl_session_t *vep_session;
2657 if (vep_handle == session_handle)
2659 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2660 return VPPCOM_EINVAL;
2663 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2664 if (PREDICT_FALSE (!vep_session))
2666 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2667 return VPPCOM_EBADFD;
2669 if (PREDICT_FALSE (!vep_session->is_vep))
2671 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2672 return VPPCOM_EINVAL;
2675 ASSERT (vep_session->vep.vep_sh == ~0);
2676 ASSERT (vep_session->vep.prev_sh == ~0);
2678 s = vcl_session_get_w_handle (wrk, session_handle);
2679 if (PREDICT_FALSE (!s))
2681 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2682 return VPPCOM_EBADFD;
2684 if (PREDICT_FALSE (s->is_vep))
2686 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2687 return VPPCOM_EINVAL;
2693 if (PREDICT_FALSE (!event))
2695 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2696 return VPPCOM_EINVAL;
2698 if (vep_session->vep.next_sh != ~0)
2700 vcl_session_t *next_session;
2701 next_session = vcl_session_get_w_handle (wrk,
2702 vep_session->vep.next_sh);
2703 if (PREDICT_FALSE (!next_session))
2705 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2706 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2707 return VPPCOM_EBADFD;
2709 ASSERT (next_session->vep.prev_sh == vep_handle);
2710 next_session->vep.prev_sh = session_handle;
2712 s->vep.next_sh = vep_session->vep.next_sh;
2713 s->vep.prev_sh = vep_handle;
2714 s->vep.vep_sh = vep_handle;
2715 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2718 s->is_vep_session = 1;
2719 vep_session->vep.next_sh = session_handle;
2721 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2722 if (txf && (event->events & EPOLLOUT))
2723 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2725 /* Generate EPOLLOUT if tx fifo not full */
2726 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2728 session_event_t e = { 0 };
2729 e.event_type = SESSION_IO_EVT_TX;
2730 e.session_index = s->session_index;
2731 vec_add1 (wrk->unhandled_evts_vector, e);
2733 /* Generate EPOLLIN if rx fifo has data */
2734 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2736 session_event_t e = { 0 };
2737 e.event_type = SESSION_IO_EVT_RX;
2738 e.session_index = s->session_index;
2739 vec_add1 (wrk->unhandled_evts_vector, e);
2741 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2742 vep_handle, session_handle, event->events, event->data.u64);
2743 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2747 if (PREDICT_FALSE (!event))
2749 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2753 else if (PREDICT_FALSE (!s->is_vep_session))
2755 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2759 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2761 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2762 session_handle, s->vep.vep_sh, vep_handle);
2767 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2768 if ((event->events & EPOLLOUT) &&
2769 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2771 session_event_t e = { 0 };
2772 e.event_type = SESSION_IO_EVT_TX;
2773 e.session_index = s->session_index;
2774 vec_add1 (wrk->unhandled_evts_vector, e);
2776 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2778 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2779 if (event->events & EPOLLOUT)
2780 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2782 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2783 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2784 vep_handle, session_handle, event->events, event->data.u64);
2788 if (PREDICT_FALSE (!s->is_vep_session))
2790 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2794 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2796 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2797 session_handle, s->vep.vep_sh, vep_handle);
2802 if (s->vep.prev_sh == vep_handle)
2803 vep_session->vep.next_sh = s->vep.next_sh;
2806 vcl_session_t *prev_session;
2807 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2808 if (PREDICT_FALSE (!prev_session))
2810 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2811 s->vep.prev_sh, session_handle);
2812 return VPPCOM_EBADFD;
2814 ASSERT (prev_session->vep.next_sh == session_handle);
2815 prev_session->vep.next_sh = s->vep.next_sh;
2817 if (s->vep.next_sh != ~0)
2819 vcl_session_t *next_session;
2820 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2821 if (PREDICT_FALSE (!next_session))
2823 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2824 s->vep.next_sh, session_handle);
2825 return VPPCOM_EBADFD;
2827 ASSERT (next_session->vep.prev_sh == session_handle);
2828 next_session->vep.prev_sh = s->vep.prev_sh;
2831 memset (&s->vep, 0, sizeof (s->vep));
2832 s->vep.next_sh = ~0;
2833 s->vep.prev_sh = ~0;
2835 s->is_vep_session = 0;
2837 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2839 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2841 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2843 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2847 VDBG (0, "Invalid operation (%d)!", op);
2851 vep_verify_epoll_chain (wrk, vep_handle);
2858 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2859 struct epoll_event *events, u32 * num_ev)
2861 session_disconnected_msg_t *disconnected_msg;
2862 session_connected_msg_t *connected_msg;
2863 u32 sid = ~0, session_events;
2864 u64 session_evt_data = ~0;
2865 vcl_session_t *session;
2868 switch (e->event_type)
2870 case SESSION_IO_EVT_RX:
2871 sid = e->session_index;
2872 session = vcl_session_get (wrk, sid);
2873 if (vcl_session_is_closed (session))
2875 vcl_fifo_rx_evt_valid_or_break (session);
2876 session_events = session->vep.ev.events;
2877 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2880 events[*num_ev].events |= EPOLLIN;
2881 session_evt_data = session->vep.ev.data.u64;
2882 session->has_rx_evt = 1;
2884 case SESSION_IO_EVT_TX:
2885 sid = e->session_index;
2886 session = vcl_session_get (wrk, sid);
2887 if (vcl_session_is_closed (session))
2889 session_events = session->vep.ev.events;
2890 if (!(EPOLLOUT & session_events))
2893 events[*num_ev].events |= EPOLLOUT;
2894 session_evt_data = session->vep.ev.data.u64;
2895 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (session) ?
2896 session->ct_tx_fifo : session->tx_fifo);
2898 case SESSION_CTRL_EVT_ACCEPTED:
2899 session = vcl_session_accepted (wrk,
2900 (session_accepted_msg_t *) e->data);
2904 session_events = session->vep.ev.events;
2905 if (!(EPOLLIN & session_events))
2909 events[*num_ev].events |= EPOLLIN;
2910 session_evt_data = session->vep.ev.data.u64;
2912 case SESSION_CTRL_EVT_CONNECTED:
2913 connected_msg = (session_connected_msg_t *) e->data;
2914 sid = vcl_session_connected_handler (wrk, connected_msg);
2915 /* Generate EPOLLOUT because there's no connected event */
2916 session = vcl_session_get (wrk, sid);
2917 if (vcl_session_is_closed (session))
2919 session_events = session->vep.ev.events;
2920 if (!(EPOLLOUT & session_events))
2923 events[*num_ev].events |= EPOLLOUT;
2924 session_evt_data = session->vep.ev.data.u64;
2925 if (session->session_state & STATE_DETACHED)
2926 events[*num_ev].events |= EPOLLHUP;
2928 case SESSION_CTRL_EVT_DISCONNECTED:
2929 disconnected_msg = (session_disconnected_msg_t *) e->data;
2930 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2931 if (vcl_session_is_closed (session))
2933 session_events = session->vep.ev.events;
2935 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2936 session_evt_data = session->vep.ev.data.u64;
2938 case SESSION_CTRL_EVT_RESET:
2939 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2940 session = vcl_session_get (wrk, sid);
2941 if (vcl_session_is_closed (session))
2943 session_events = session->vep.ev.events;
2945 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2946 session_evt_data = session->vep.ev.data.u64;
2948 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2949 vcl_session_unlisten_reply_handler (wrk, e->data);
2951 case SESSION_CTRL_EVT_MIGRATED:
2952 vcl_session_migrated_handler (wrk, e->data);
2954 case SESSION_CTRL_EVT_CLEANUP:
2955 vcl_session_cleanup_handler (wrk, e->data);
2957 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2958 vcl_session_req_worker_update_handler (wrk, e->data);
2960 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2961 vcl_session_worker_update_reply_handler (wrk, e->data);
2963 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2964 vcl_session_app_add_segment_handler (wrk, e->data);
2966 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2967 vcl_session_app_del_segment_handler (wrk, e->data);
2969 case SESSION_CTRL_EVT_APP_WRK_RPC:
2970 vcl_worker_rpc_handler (wrk, e->data);
2973 VDBG (0, "unhandled: %u", e->event_type);
2979 events[*num_ev].data.u64 = session_evt_data;
2980 if (EPOLLONESHOT & session_events)
2982 session = vcl_session_get (wrk, sid);
2983 session->vep.ev.events = 0;
2990 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2991 struct epoll_event *events, u32 maxevents,
2992 double wait_for_time, u32 * num_ev)
2994 svm_msg_q_msg_t *msg;
2998 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2999 goto handle_dequeued;
3001 svm_msg_q_lock (mq);
3002 if (svm_msg_q_is_empty (mq))
3006 svm_msg_q_unlock (mq);
3009 else if (wait_for_time < 0)
3011 svm_msg_q_wait (mq);
3015 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3017 svm_msg_q_unlock (mq);
3022 ASSERT (maxevents > *num_ev);
3023 vcl_mq_dequeue_batch (wrk, mq, ~0);
3024 svm_msg_q_unlock (mq);
3027 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3029 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3030 e = svm_msg_q_msg_data (mq, msg);
3031 if (*num_ev < maxevents)
3032 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3034 vcl_handle_mq_event (wrk, e);
3035 svm_msg_q_free_msg (mq, msg);
3037 vec_reset_length (wrk->mq_msg_vector);
3038 vcl_handle_pending_wrk_updates (wrk);
3043 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
3044 int maxevents, u32 n_evts, double wait_for_time)
3046 double wait = 0, start = 0, now;
3050 wait = wait_for_time;
3051 start = clib_time_now (&wrk->clib_time);
3056 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3063 now = clib_time_now (&wrk->clib_time);
3064 wait -= (now - start) * 1e3;
3073 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3074 int maxevents, u32 n_evts, double wait_for_time)
3076 vcl_mq_evt_conn_t *mqc;
3077 int __clib_unused n_read;
3081 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3083 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3084 vec_len (wrk->mq_events), wait_for_time);
3085 for (i = 0; i < n_mq_evts; i++)
3087 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3088 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3089 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3091 if (!n_evts && n_mq_evts > 0)
3094 return (int) n_evts;
3098 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3099 int maxevents, double wait_for_time)
3101 vcl_worker_t *wrk = vcl_worker_get_current ();
3102 vcl_session_t *vep_session;
3106 if (PREDICT_FALSE (maxevents <= 0))
3108 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3109 return VPPCOM_EINVAL;
3112 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3114 return VPPCOM_EBADFD;
3116 if (PREDICT_FALSE (!vep_session->is_vep))
3118 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3119 return VPPCOM_EINVAL;
3122 memset (events, 0, sizeof (*events) * maxevents);
3124 if (vec_len (wrk->unhandled_evts_vector))
3126 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3128 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3130 if (n_evts == maxevents)
3132 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3136 vec_reset_length (wrk->unhandled_evts_vector);
3139 if (vcm->cfg.use_mq_eventfd)
3140 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3143 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3148 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3149 void *buffer, uint32_t * buflen)
3151 vcl_worker_t *wrk = vcl_worker_get_current ();
3152 vcl_session_t *session;
3154 u32 *flags = buffer, tmp_flags = 0;
3155 vppcom_endpt_t *ep = buffer;
3157 session = vcl_session_get_w_handle (wrk, session_handle);
3159 return VPPCOM_EBADFD;
3163 case VPPCOM_ATTR_GET_NREAD:
3164 rv = vcl_session_read_ready (session);
3165 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3169 case VPPCOM_ATTR_GET_NWRITE:
3170 rv = vcl_session_write_ready (session);
3171 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3175 case VPPCOM_ATTR_GET_FLAGS:
3176 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3180 (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK) ?
3182 *buflen = sizeof (*flags);
3183 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3184 "is_nonblocking = %u", session_handle, *flags,
3185 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3191 case VPPCOM_ATTR_SET_FLAGS:
3192 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3194 if (*flags & O_NONBLOCK)
3195 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3197 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3199 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3200 " is_nonblocking = %u", session_handle, *flags,
3201 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3207 case VPPCOM_ATTR_GET_PEER_ADDR:
3208 if (PREDICT_TRUE (buffer && buflen &&
3209 (*buflen >= sizeof (*ep)) && ep->ip))
3211 ep->is_ip4 = session->transport.is_ip4;
3212 ep->port = session->transport.rmt_port;
3213 if (session->transport.is_ip4)
3214 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3215 sizeof (ip4_address_t));
3217 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3218 sizeof (ip6_address_t));
3219 *buflen = sizeof (*ep);
3220 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3221 "addr = %U, port %u", session_handle, ep->is_ip4,
3222 format_ip46_address, &session->transport.rmt_ip,
3223 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3224 clib_net_to_host_u16 (ep->port));
3230 case VPPCOM_ATTR_GET_LCL_ADDR:
3231 if (PREDICT_TRUE (buffer && buflen &&
3232 (*buflen >= sizeof (*ep)) && ep->ip))
3234 ep->is_ip4 = session->transport.is_ip4;
3235 ep->port = session->transport.lcl_port;
3236 if (session->transport.is_ip4)
3237 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3238 sizeof (ip4_address_t));
3240 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3241 sizeof (ip6_address_t));
3242 *buflen = sizeof (*ep);
3243 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3244 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3245 &session->transport.lcl_ip,
3246 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3247 clib_net_to_host_u16 (ep->port));
3253 case VPPCOM_ATTR_SET_LCL_ADDR:
3254 if (PREDICT_TRUE (buffer && buflen &&
3255 (*buflen >= sizeof (*ep)) && ep->ip))
3257 session->transport.is_ip4 = ep->is_ip4;
3258 session->transport.lcl_port = ep->port;
3259 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3260 *buflen = sizeof (*ep);
3261 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3262 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3263 &session->transport.lcl_ip,
3264 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3265 clib_net_to_host_u16 (ep->port));
3271 case VPPCOM_ATTR_GET_LIBC_EPFD:
3272 rv = session->libc_epfd;
3273 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3276 case VPPCOM_ATTR_SET_LIBC_EPFD:
3277 if (PREDICT_TRUE (buffer && buflen &&
3278 (*buflen == sizeof (session->libc_epfd))))
3280 session->libc_epfd = *(int *) buffer;
3281 *buflen = sizeof (session->libc_epfd);
3283 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3284 session->libc_epfd, *buflen);
3290 case VPPCOM_ATTR_GET_PROTOCOL:
3291 if (buffer && buflen && (*buflen >= sizeof (int)))
3293 *(int *) buffer = session->session_type;
3294 *buflen = sizeof (int);
3296 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3297 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3303 case VPPCOM_ATTR_GET_LISTEN:
3304 if (buffer && buflen && (*buflen >= sizeof (int)))
3306 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3307 VCL_SESS_ATTR_LISTEN);
3308 *buflen = sizeof (int);
3310 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3317 case VPPCOM_ATTR_GET_ERROR:
3318 if (buffer && buflen && (*buflen >= sizeof (int)))
3320 *(int *) buffer = 0;
3321 *buflen = sizeof (int);
3323 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3324 *(int *) buffer, *buflen);
3330 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3331 if (buffer && buflen && (*buflen >= sizeof (u32)))
3335 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3337 svm_fifo_size (session->tx_fifo) :
3338 vcm->cfg.tx_fifo_size);
3339 *buflen = sizeof (u32);
3341 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3342 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3349 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3350 if (buffer && buflen && (*buflen == sizeof (u32)))
3353 session->sndbuf_size = *(u32 *) buffer;
3354 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3355 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3362 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3363 if (buffer && buflen && (*buflen >= sizeof (u32)))
3367 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3369 svm_fifo_size (session->rx_fifo) :
3370 vcm->cfg.rx_fifo_size);
3371 *buflen = sizeof (u32);
3373 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3374 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3380 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3381 if (buffer && buflen && (*buflen == sizeof (u32)))
3384 session->rcvbuf_size = *(u32 *) buffer;
3385 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3386 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3393 case VPPCOM_ATTR_GET_REUSEADDR:
3394 if (buffer && buflen && (*buflen >= sizeof (int)))
3397 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3398 VCL_SESS_ATTR_REUSEADDR);
3399 *buflen = sizeof (int);
3401 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3402 *(int *) buffer, *buflen);
3408 case VPPCOM_ATTR_SET_REUSEADDR:
3409 if (buffer && buflen && (*buflen == sizeof (int)) &&
3410 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3413 if (*(int *) buffer)
3414 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3416 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3418 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3419 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3426 case VPPCOM_ATTR_GET_REUSEPORT:
3427 if (buffer && buflen && (*buflen >= sizeof (int)))
3430 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3431 VCL_SESS_ATTR_REUSEPORT);
3432 *buflen = sizeof (int);
3434 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3435 *(int *) buffer, *buflen);
3441 case VPPCOM_ATTR_SET_REUSEPORT:
3442 if (buffer && buflen && (*buflen == sizeof (int)) &&
3443 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3446 if (*(int *) buffer)
3447 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3449 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3451 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3452 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3459 case VPPCOM_ATTR_GET_BROADCAST:
3460 if (buffer && buflen && (*buflen >= sizeof (int)))
3463 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3464 VCL_SESS_ATTR_BROADCAST);
3465 *buflen = sizeof (int);
3467 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3468 *(int *) buffer, *buflen);
3474 case VPPCOM_ATTR_SET_BROADCAST:
3475 if (buffer && buflen && (*buflen == sizeof (int)))
3478 if (*(int *) buffer)
3479 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3481 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3483 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3484 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3491 case VPPCOM_ATTR_GET_V6ONLY:
3492 if (buffer && buflen && (*buflen >= sizeof (int)))
3495 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3496 VCL_SESS_ATTR_V6ONLY);
3497 *buflen = sizeof (int);
3499 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3500 *(int *) buffer, *buflen);
3506 case VPPCOM_ATTR_SET_V6ONLY:
3507 if (buffer && buflen && (*buflen == sizeof (int)))
3510 if (*(int *) buffer)
3511 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3513 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3515 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3516 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3523 case VPPCOM_ATTR_GET_KEEPALIVE:
3524 if (buffer && buflen && (*buflen >= sizeof (int)))
3527 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3528 VCL_SESS_ATTR_KEEPALIVE);
3529 *buflen = sizeof (int);
3531 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3532 *(int *) buffer, *buflen);
3538 case VPPCOM_ATTR_SET_KEEPALIVE:
3539 if (buffer && buflen && (*buflen == sizeof (int)))
3542 if (*(int *) buffer)
3543 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3545 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3547 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3548 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3555 case VPPCOM_ATTR_GET_TCP_NODELAY:
3556 if (buffer && buflen && (*buflen >= sizeof (int)))
3559 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3560 VCL_SESS_ATTR_TCP_NODELAY);
3561 *buflen = sizeof (int);
3563 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3564 *(int *) buffer, *buflen);
3570 case VPPCOM_ATTR_SET_TCP_NODELAY:
3571 if (buffer && buflen && (*buflen == sizeof (int)))
3574 if (*(int *) buffer)
3575 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3577 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3579 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3580 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3587 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3588 if (buffer && buflen && (*buflen >= sizeof (int)))
3591 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3592 VCL_SESS_ATTR_TCP_KEEPIDLE);
3593 *buflen = sizeof (int);
3595 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3596 *(int *) buffer, *buflen);
3602 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3603 if (buffer && buflen && (*buflen == sizeof (int)))
3606 if (*(int *) buffer)
3607 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3609 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3611 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3612 VCL_SESS_ATTR_TEST (session->attr,
3613 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3619 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3620 if (buffer && buflen && (*buflen >= sizeof (int)))
3623 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3624 VCL_SESS_ATTR_TCP_KEEPINTVL);
3625 *buflen = sizeof (int);
3627 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3628 *(int *) buffer, *buflen);
3634 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3635 if (buffer && buflen && (*buflen == sizeof (int)))
3638 if (*(int *) buffer)
3639 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3641 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3643 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3644 VCL_SESS_ATTR_TEST (session->attr,
3645 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3651 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3652 if (buffer && buflen && (*buflen >= sizeof (u32)))
3655 *(u32 *) buffer = session->user_mss;
3656 *buflen = sizeof (int);
3658 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3659 *(int *) buffer, *buflen);
3665 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3666 if (buffer && buflen && (*buflen == sizeof (u32)))
3669 session->user_mss = *(u32 *) buffer;
3671 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3672 session->user_mss, *buflen);
3678 case VPPCOM_ATTR_SET_SHUT:
3679 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3680 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3681 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3682 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3685 case VPPCOM_ATTR_GET_SHUT:
3686 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3688 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3691 *(int *) buffer = SHUT_RD;
3692 else if (tmp_flags == 2)
3693 *(int *) buffer = SHUT_WR;
3694 else if (tmp_flags == 3)
3695 *(int *) buffer = SHUT_RDWR;
3696 *buflen = sizeof (int);
3699 case VPPCOM_ATTR_SET_CONNECTED:
3700 session->flags |= VCL_SESSION_F_CONNECTED;
3712 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3713 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3715 vcl_worker_t *wrk = vcl_worker_get_current ();
3716 vcl_session_t *session;
3720 rv = vppcom_session_read (session_handle, buffer, buflen);
3721 else if (flags & MSG_PEEK)
3722 rv = vppcom_session_peek (session_handle, buffer, buflen);
3725 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3726 return VPPCOM_EAFNOSUPPORT;
3731 session = vcl_session_get_w_handle (wrk, session_handle);
3732 if (session->transport.is_ip4)
3733 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3734 sizeof (ip4_address_t));
3736 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3737 sizeof (ip6_address_t));
3738 ep->is_ip4 = session->transport.is_ip4;
3739 ep->port = session->transport.rmt_port;
3746 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3747 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3749 vcl_worker_t *wrk = vcl_worker_get_current ();
3752 s = vcl_session_get_w_handle (wrk, session_handle);
3754 return VPPCOM_EBADFD;
3757 return VPPCOM_EINVAL;
3761 if (s->session_type != VPPCOM_PROTO_UDP
3762 || (s->flags & VCL_SESSION_F_CONNECTED))
3763 return VPPCOM_EINVAL;
3765 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3766 if (PREDICT_FALSE (s->session_state == STATE_CLOSED))
3768 vcl_send_session_connect (wrk, s);
3772 s->transport.is_ip4 = ep->is_ip4;
3773 s->transport.rmt_port = ep->port;
3774 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3780 // TBD check the flags and do the right thing
3781 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3784 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3785 s->is_dgram ? 1 : 0));
3789 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3791 vcl_worker_t *wrk = vcl_worker_get_current ();
3792 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3793 u32 i, keep_trying = 1;
3794 svm_msg_q_msg_t msg;
3798 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3801 return VPPCOM_EFAULT;
3805 vcl_session_t *session;
3807 /* Dequeue all events and drop all unhandled io events */
3808 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3810 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3811 vcl_handle_mq_event (wrk, e);
3812 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3814 vec_reset_length (wrk->unhandled_evts_vector);
3816 for (i = 0; i < n_sids; i++)
3818 session = vcl_session_get (wrk, vp[i].sh);
3821 vp[i].revents = POLLHUP;
3828 if (POLLIN & vp[i].events)
3830 rv = vcl_session_read_ready (session);
3833 vp[i].revents |= POLLIN;
3840 case VPPCOM_ECONNRESET:
3841 vp[i].revents = POLLHUP;
3845 vp[i].revents = POLLERR;
3852 if (POLLOUT & vp[i].events)
3854 rv = vcl_session_write_ready (session);
3857 vp[i].revents |= POLLOUT;
3864 case VPPCOM_ECONNRESET:
3865 vp[i].revents = POLLHUP;
3869 vp[i].revents = POLLERR;
3876 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3878 vp[i].revents = POLLNVAL;
3882 if (wait_for_time != -1)
3883 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3885 while ((num_ev == 0) && keep_trying);
3891 vppcom_mq_epoll_fd (void)
3893 vcl_worker_t *wrk = vcl_worker_get_current ();
3894 return wrk->mqs_epfd;
3898 vppcom_session_index (vcl_session_handle_t session_handle)
3900 return session_handle & 0xFFFFFF;
3904 vppcom_session_worker (vcl_session_handle_t session_handle)
3906 return session_handle >> 24;
3910 vppcom_worker_register (void)
3916 if (!vcl_worker_alloc_and_init ())
3917 return VPPCOM_EEXIST;
3919 wrk = vcl_worker_get_current ();
3920 wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index);
3922 rv = vppcom_connect_to_vpp ((char *) wrk_name);
3923 vec_free (wrk_name);
3926 return VPPCOM_EFAULT;
3928 if (vcl_worker_register_with_vpp ())
3929 return VPPCOM_EEXIST;
3935 vppcom_worker_unregister (void)
3937 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3938 vcl_set_worker_index (~0);
3942 vppcom_worker_index_set (int index)
3944 vcl_set_worker_index (index);
3948 vppcom_worker_index (void)
3950 return vcl_get_worker_index ();
3954 vppcom_worker_mqs_epfd (void)
3956 vcl_worker_t *wrk = vcl_worker_get_current ();
3957 if (!vcm->cfg.use_mq_eventfd)
3959 return wrk->mqs_epfd;
3963 vppcom_session_is_connectable_listener (uint32_t session_handle)
3965 vcl_session_t *session;
3966 vcl_worker_t *wrk = vcl_worker_get_current ();
3967 session = vcl_session_get_w_handle (wrk, session_handle);
3969 return VPPCOM_EBADFD;
3970 return vcl_session_is_connectable_listener (wrk, session);
3974 vppcom_session_listener (uint32_t session_handle)
3976 vcl_worker_t *wrk = vcl_worker_get_current ();
3977 vcl_session_t *listen_session, *session;
3978 session = vcl_session_get_w_handle (wrk, session_handle);
3980 return VPPCOM_EBADFD;
3981 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3982 return VPPCOM_EBADFD;
3983 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3984 if (!listen_session)
3985 return VPPCOM_EBADFD;
3986 return vcl_session_handle (listen_session);
3990 vppcom_session_n_accepted (uint32_t session_handle)
3992 vcl_worker_t *wrk = vcl_worker_get_current ();
3993 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3995 return VPPCOM_EBADFD;
3996 return session->n_accepted_sessions;
4000 vppcom_proto_str (vppcom_proto_t proto)
4002 char const *proto_str;
4006 case VPPCOM_PROTO_TCP:
4009 case VPPCOM_PROTO_UDP:
4012 case VPPCOM_PROTO_TLS:
4015 case VPPCOM_PROTO_QUIC:
4019 proto_str = "UNKNOWN";
4026 vppcom_retval_str (int retval)
4037 st = "VPPCOM_EAGAIN";
4041 st = "VPPCOM_EFAULT";
4045 st = "VPPCOM_ENOMEM";
4049 st = "VPPCOM_EINVAL";
4053 st = "VPPCOM_EBADFD";
4056 case VPPCOM_EAFNOSUPPORT:
4057 st = "VPPCOM_EAFNOSUPPORT";
4060 case VPPCOM_ECONNABORTED:
4061 st = "VPPCOM_ECONNABORTED";
4064 case VPPCOM_ECONNRESET:
4065 st = "VPPCOM_ECONNRESET";
4068 case VPPCOM_ENOTCONN:
4069 st = "VPPCOM_ENOTCONN";
4072 case VPPCOM_ECONNREFUSED:
4073 st = "VPPCOM_ECONNREFUSED";
4076 case VPPCOM_ETIMEDOUT:
4077 st = "VPPCOM_ETIMEDOUT";
4081 st = "UNKNOWN_STATE";
4089 * fd.io coding-style-patch-verification: ON
4092 * eval: (c-set-style "gnu")