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_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
28 u32 n_msgs = 0, sz, len;
30 while ((sz = svm_msg_q_size (mq)))
32 len = vec_len (wrk->mq_msg_vector);
33 vec_validate (wrk->mq_msg_vector, len + sz - 1);
34 svm_msg_q_sub_raw_batch (mq, wrk->mq_msg_vector + len, sz);
41 vppcom_session_state_str (vcl_session_state_t state)
47 case VCL_STATE_CLOSED:
50 case VCL_STATE_LISTEN:
56 case VCL_STATE_VPP_CLOSING:
57 st = "STATE_VPP_CLOSING";
59 case VCL_STATE_DISCONNECT:
60 st = "STATE_DISCONNECT";
62 case VCL_STATE_DETACHED:
63 st = "STATE_DETACHED";
65 case VCL_STATE_UPDATED:
68 case VCL_STATE_LISTEN_NO_MQ:
69 st = "STATE_LISTEN_NO_MQ";
80 format_ip4_address (u8 * s, va_list * args)
82 u8 *a = va_arg (*args, u8 *);
83 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
87 format_ip6_address (u8 * s, va_list * args)
89 ip6_address_t *a = va_arg (*args, ip6_address_t *);
90 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
92 i_max_n_zero = ARRAY_LEN (a->as_u16);
94 i_first_zero = i_max_n_zero;
96 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
98 u32 is_zero = a->as_u16[i] == 0;
99 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
105 if ((!is_zero && n_zeros > max_n_zeros)
106 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
108 i_max_n_zero = i_first_zero;
109 max_n_zeros = n_zeros;
110 i_first_zero = ARRAY_LEN (a->as_u16);
115 last_double_colon = 0;
116 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
118 if (i == i_max_n_zero && max_n_zeros > 1)
120 s = format (s, "::");
121 i += max_n_zeros - 1;
122 last_double_colon = 1;
126 s = format (s, "%s%x",
127 (last_double_colon || i == 0) ? "" : ":",
128 clib_net_to_host_u16 (a->as_u16[i]));
129 last_double_colon = 0;
136 /* Format an IP46 address. */
138 format_ip46_address (u8 * s, va_list * args)
140 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
141 ip46_type_t type = va_arg (*args, ip46_type_t);
147 is_ip4 = ip46_address_is_ip4 (ip46);
158 format (s, "%U", format_ip4_address, &ip46->ip4) :
159 format (s, "%U", format_ip6_address, &ip46->ip6);
163 * VPPCOM Utility Functions
167 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
169 app_session_evt_t _app_evt, *app_evt = &_app_evt;
170 session_listen_msg_t *mp;
173 mq = vcl_worker_ctrl_mq (wrk);
174 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
175 mp = (session_listen_msg_t *) app_evt->evt->data;
176 memset (mp, 0, sizeof (*mp));
177 mp->client_index = wrk->api_client_handle;
178 mp->context = s->session_index;
179 mp->wrk_index = wrk->vpp_wrk_index;
180 mp->is_ip4 = s->transport.is_ip4;
181 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
182 mp->port = s->transport.lcl_port;
183 mp->proto = s->session_type;
184 mp->ckpair_index = s->ckpair_index;
186 if (s->flags & VCL_SESSION_F_CONNECTED)
187 mp->flags = TRANSPORT_CFG_F_CONNECTED;
188 app_send_ctrl_evt_to_vpp (mq, app_evt);
192 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
194 app_session_evt_t _app_evt, *app_evt = &_app_evt;
195 session_connect_msg_t *mp;
198 mq = vcl_worker_ctrl_mq (wrk);
199 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
200 mp = (session_connect_msg_t *) app_evt->evt->data;
201 memset (mp, 0, sizeof (*mp));
202 mp->client_index = wrk->api_client_handle;
203 mp->context = s->session_index;
204 mp->wrk_index = wrk->vpp_wrk_index;
205 mp->is_ip4 = s->transport.is_ip4;
206 mp->parent_handle = s->parent_handle;
207 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
208 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
209 mp->port = s->transport.rmt_port;
210 mp->lcl_port = s->transport.lcl_port;
211 mp->proto = s->session_type;
212 mp->ckpair_index = s->ckpair_index;
214 if (s->flags & VCL_SESSION_F_CONNECTED)
215 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
216 app_send_ctrl_evt_to_vpp (mq, app_evt);
220 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
222 app_session_evt_t _app_evt, *app_evt = &_app_evt;
223 session_unlisten_msg_t *mp;
226 mq = vcl_worker_ctrl_mq (wrk);
227 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
228 mp = (session_unlisten_msg_t *) app_evt->evt->data;
229 memset (mp, 0, sizeof (*mp));
230 mp->client_index = wrk->api_client_handle;
231 mp->wrk_index = wrk->vpp_wrk_index;
232 mp->handle = s->vpp_handle;
233 mp->context = wrk->wrk_index;
234 app_send_ctrl_evt_to_vpp (mq, app_evt);
238 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
240 app_session_evt_t _app_evt, *app_evt = &_app_evt;
241 session_disconnect_msg_t *mp;
244 /* Send to thread that owns the session */
246 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
247 mp = (session_disconnect_msg_t *) app_evt->evt->data;
248 memset (mp, 0, sizeof (*mp));
249 mp->client_index = wrk->api_client_handle;
250 mp->handle = s->vpp_handle;
251 app_send_ctrl_evt_to_vpp (mq, app_evt);
255 vcl_send_app_detach (vcl_worker_t * wrk)
257 app_session_evt_t _app_evt, *app_evt = &_app_evt;
258 session_app_detach_msg_t *mp;
261 mq = vcl_worker_ctrl_mq (wrk);
262 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
263 mp = (session_app_detach_msg_t *) app_evt->evt->data;
264 memset (mp, 0, sizeof (*mp));
265 mp->client_index = wrk->api_client_handle;
266 app_send_ctrl_evt_to_vpp (mq, app_evt);
270 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
271 session_handle_t handle, int retval)
273 app_session_evt_t _app_evt, *app_evt = &_app_evt;
274 session_accepted_reply_msg_t *rmp;
275 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
276 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
277 rmp->handle = handle;
278 rmp->context = context;
279 rmp->retval = retval;
280 app_send_ctrl_evt_to_vpp (mq, app_evt);
284 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
287 app_session_evt_t _app_evt, *app_evt = &_app_evt;
288 session_disconnected_reply_msg_t *rmp;
289 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
290 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
291 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
292 rmp->handle = s->vpp_handle;
293 rmp->context = wrk->api_client_handle;
294 rmp->retval = retval;
295 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
299 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
302 app_session_evt_t _app_evt, *app_evt = &_app_evt;
303 session_reset_reply_msg_t *rmp;
304 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
305 SESSION_CTRL_EVT_RESET_REPLY);
306 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
307 rmp->handle = s->vpp_handle;
308 rmp->context = wrk->api_client_handle;
309 rmp->retval = retval;
310 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
314 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
317 app_session_evt_t _app_evt, *app_evt = &_app_evt;
318 session_worker_update_msg_t *mp;
320 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
321 SESSION_CTRL_EVT_WORKER_UPDATE);
322 mp = (session_worker_update_msg_t *) app_evt->evt->data;
323 mp->client_index = wrk->api_client_handle;
324 mp->handle = s->vpp_handle;
325 mp->req_wrk_index = wrk->vpp_wrk_index;
326 mp->wrk_index = wrk_index;
327 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
331 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
333 app_session_evt_t _app_evt, *app_evt = &_app_evt;
334 session_app_wrk_rpc_msg_t *mp;
335 vcl_worker_t *dst_wrk, *wrk;
339 if (data_len > sizeof (mp->data))
342 clib_spinlock_lock (&vcm->workers_lock);
344 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
348 wrk = vcl_worker_get_current ();
349 mq = vcl_worker_ctrl_mq (wrk);
350 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
351 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
352 mp->client_index = wrk->api_client_handle;
353 mp->wrk_index = dst_wrk->vpp_wrk_index;
354 clib_memcpy (mp->data, data, data_len);
355 app_send_ctrl_evt_to_vpp (mq, app_evt);
359 clib_spinlock_unlock (&vcm->workers_lock);
364 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
367 vcl_session_t *session, *listen_session;
370 session = vcl_session_alloc (wrk);
372 listen_session = vcl_session_get (wrk, ls_index);
373 if (listen_session->vpp_handle != mp->listener_handle)
375 VDBG (0, "ERROR: listener handle %lu does not match session %u",
376 mp->listener_handle, ls_index);
380 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
382 mp->vpp_event_queue_address, 0, session))
384 VDBG (0, "failed to attach fifos for %u", session->session_index);
388 session->vpp_handle = mp->handle;
389 session->session_state = VCL_STATE_READY;
390 session->transport.rmt_port = mp->rmt.port;
391 session->transport.is_ip4 = mp->rmt.is_ip4;
392 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
393 sizeof (ip46_address_t));
395 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
396 session->transport.lcl_port = listen_session->transport.lcl_port;
397 session->transport.lcl_ip = listen_session->transport.lcl_ip;
398 session->session_type = listen_session->session_type;
399 session->is_dgram = vcl_proto_is_dgram (session->session_type);
400 session->listener_index = listen_session->session_index;
401 listen_session->n_accepted_sessions++;
403 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
404 " port %d queue %p!", session->session_index, mp->handle,
405 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
406 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
407 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
408 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
410 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
411 session->vpp_handle, 0);
413 return session->session_index;
416 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
417 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
418 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
419 VNET_API_ERROR_INVALID_ARGUMENT);
420 vcl_session_free (wrk, session);
421 return VCL_INVALID_SESSION_INDEX;
425 vcl_session_connected_handler (vcl_worker_t * wrk,
426 session_connected_msg_t * mp)
428 vcl_session_t *session = 0;
431 session_index = mp->context;
432 session = vcl_session_get (wrk, session_index);
435 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
436 mp->handle, session_index);
437 return VCL_INVALID_SESSION_INDEX;
441 VDBG (0, "ERROR: session index %u: connect failed! %U",
442 session_index, format_session_error, mp->retval);
443 session->session_state = VCL_STATE_DETACHED;
444 session->vpp_handle = mp->handle;
445 return session_index;
448 session->vpp_handle = mp->handle;
450 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
452 mp->vpp_event_queue_address, 0, session))
454 VDBG (0, "failed to attach fifos for %u", session->session_index);
455 session->session_state = VCL_STATE_DETACHED;
456 vcl_send_session_disconnect (wrk, session);
457 return session_index;
462 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
463 mp->ct_tx_fifo, (uword) ~0, 1, session))
465 VDBG (0, "failed to attach ct fifos for %u", session->session_index);
466 session->session_state = VCL_STATE_DETACHED;
467 vcl_send_session_disconnect (wrk, session);
468 return session_index;
472 session->transport.is_ip4 = mp->lcl.is_ip4;
473 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
474 sizeof (session->transport.lcl_ip));
475 session->transport.lcl_port = mp->lcl.port;
477 /* Application closed session before connect reply */
478 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
479 && session->session_state == VCL_STATE_CLOSED)
480 vcl_send_session_disconnect (wrk, session);
482 session->session_state = VCL_STATE_READY;
484 /* Add it to lookup table */
485 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
487 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
488 " refcnt %d", session_index, mp->handle, session->rx_fifo,
489 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
491 return session_index;
495 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
497 vcl_session_msg_t *accepted_msg;
500 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
502 accepted_msg = &session->accept_evts_fifo[i];
503 if (accepted_msg->accepted_msg.handle == handle)
505 accepted_msg->flags |= flags;
513 vcl_session_reset_handler (vcl_worker_t * wrk,
514 session_reset_msg_t * reset_msg)
516 vcl_session_t *session;
519 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
520 session = vcl_session_get (wrk, sid);
523 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
524 return VCL_INVALID_SESSION_INDEX;
527 /* Caught a reset before actually accepting the session */
528 if (session->session_state == VCL_STATE_LISTEN)
531 if (!vcl_flag_accepted_session (session, reset_msg->handle,
532 VCL_ACCEPTED_F_RESET))
533 VDBG (0, "session was not accepted!");
534 return VCL_INVALID_SESSION_INDEX;
537 if (session->session_state != VCL_STATE_CLOSED)
538 session->session_state = VCL_STATE_DISCONNECT;
539 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
544 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
546 vcl_session_t *session;
547 u32 sid = mp->context;
549 session = vcl_session_get (wrk, sid);
552 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
553 format_session_error, mp->retval);
556 session->session_state = VCL_STATE_DETACHED;
557 session->vpp_handle = mp->handle;
562 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
564 return VCL_INVALID_SESSION_INDEX;
568 session->vpp_handle = mp->handle;
569 session->transport.is_ip4 = mp->lcl_is_ip4;
570 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
571 sizeof (ip46_address_t));
572 session->transport.lcl_port = mp->lcl_port;
573 vcl_session_table_add_listener (wrk, mp->handle, sid);
574 session->session_state = VCL_STATE_LISTEN;
576 if (vcl_session_is_cl (session))
578 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
579 mp->tx_fifo, mp->vpp_evt_q, 0, session))
581 VDBG (0, "failed to attach fifos for %u", session->session_index);
582 session->session_state = VCL_STATE_DETACHED;
583 return VCL_INVALID_SESSION_INDEX;
587 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
592 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
594 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
597 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
600 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
603 if (s->session_state != VCL_STATE_DISCONNECT)
605 /* Connected udp listener */
606 if (s->session_type == VPPCOM_PROTO_UDP
607 && s->session_state == VCL_STATE_CLOSED)
610 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
615 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
616 s->session_index, mp->handle, format_session_error, mp->retval);
618 if (mp->context != wrk->wrk_index)
619 VDBG (0, "wrong context");
621 vcl_session_table_del_vpp_handle (wrk, mp->handle);
622 vcl_session_free (wrk, s);
626 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
628 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
632 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
635 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
639 /* Only validate if a value is provided */
640 if (mp->segment_handle != SESSION_INVALID_HANDLE)
642 fs_index = vcl_segment_table_lookup (mp->segment_handle);
643 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
645 VDBG (0, "segment %lx for session %u is not mounted!",
646 mp->segment_handle, s->session_index);
647 s->session_state = VCL_STATE_DETACHED;
652 s->vpp_handle = mp->new_handle;
654 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
655 mp->vpp_thread_index, &s->vpp_evt_q);
657 vcl_session_table_del_vpp_handle (wrk, mp->handle);
658 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
660 /* Generate new tx event if we have outstanding data */
661 if (svm_fifo_has_event (s->tx_fifo))
662 app_send_io_evt_to_vpp (s->vpp_evt_q,
663 s->tx_fifo->shr->master_session_index,
664 SESSION_IO_EVT_TX, SVM_Q_WAIT);
666 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
667 mp->vpp_thread_index, mp->new_handle);
670 static vcl_session_t *
671 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
673 vcl_session_msg_t *vcl_msg;
674 vcl_session_t *session;
676 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
677 if (PREDICT_FALSE (session != 0))
678 VWRN ("session overlap handle %lu state %u!", msg->handle,
679 session->session_state);
681 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
684 VERR ("couldn't find listen session: listener handle %llx",
685 msg->listener_handle);
689 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
691 vcl_msg->accepted_msg = *msg;
692 /* Session handle points to listener until fully accepted by app */
693 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
698 static vcl_session_t *
699 vcl_session_disconnected_handler (vcl_worker_t * wrk,
700 session_disconnected_msg_t * msg)
702 vcl_session_t *session;
704 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
707 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
711 /* Late disconnect notification on a session that has been closed */
712 if (session->session_state == VCL_STATE_CLOSED)
715 /* Caught a disconnect before actually accepting the session */
716 if (session->session_state == VCL_STATE_LISTEN)
718 if (!vcl_flag_accepted_session (session, msg->handle,
719 VCL_ACCEPTED_F_CLOSED))
720 VDBG (0, "session was not accepted!");
724 /* If not already reset change state */
725 if (session->session_state != VCL_STATE_DISCONNECT)
726 session->session_state = VCL_STATE_VPP_CLOSING;
732 vppcom_session_disconnect (u32 session_handle)
734 vcl_worker_t *wrk = vcl_worker_get_current ();
735 vcl_session_t *session, *listen_session;
736 vcl_session_state_t state;
739 session = vcl_session_get_w_handle (wrk, session_handle);
741 return VPPCOM_EBADFD;
743 vpp_handle = session->vpp_handle;
744 state = session->session_state;
746 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
747 vpp_handle, state, vppcom_session_state_str (state));
749 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
751 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
752 return VPPCOM_EBADFD;
755 if (state == VCL_STATE_VPP_CLOSING)
757 vcl_send_session_disconnected_reply (wrk, session, 0);
758 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
759 session->session_index, vpp_handle);
763 /* Session doesn't have an event queue yet. Probably a non-blocking
764 * connect. Wait for the reply */
765 if (PREDICT_FALSE (!session->vpp_evt_q))
768 VDBG (1, "session %u [0x%llx]: sending disconnect...",
769 session->session_index, vpp_handle);
770 vcl_send_session_disconnect (wrk, session);
773 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
775 listen_session = vcl_session_get (wrk, session->listener_index);
776 listen_session->n_accepted_sessions--;
783 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
785 session_cleanup_msg_t *msg;
786 vcl_session_t *session;
788 msg = (session_cleanup_msg_t *) data;
789 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
792 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
796 if (msg->type == SESSION_CLEANUP_TRANSPORT)
798 /* Transport was cleaned up before we confirmed close. Probably the
799 * app is still waiting for some data that cannot be delivered.
800 * Confirm close to make sure everything is cleaned up.
801 * Move to undetermined state to ensure that the session is not
802 * removed before both vpp and the app cleanup.
803 * - If the app closes first, the session is moved to CLOSED state
804 * and the session cleanup notification from vpp removes the
806 * - If vpp cleans up the session first, the session is moved to
807 * DETACHED state lower and subsequently the close from the app
810 if (session->session_state == VCL_STATE_VPP_CLOSING)
812 vppcom_session_disconnect (vcl_session_handle (session));
813 session->session_state = VCL_STATE_UPDATED;
815 else if (session->session_state == VCL_STATE_DISCONNECT)
817 vcl_send_session_reset_reply (wrk, session, 0);
818 session->session_state = VCL_STATE_UPDATED;
823 vcl_session_table_del_vpp_handle (wrk, msg->handle);
824 /* Should not happen. App did not close the connection so don't free it. */
825 if (session->session_state != VCL_STATE_CLOSED)
827 VDBG (0, "app did not close session %d", session->session_index);
828 session->session_state = VCL_STATE_DETACHED;
829 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
832 vcl_session_free (wrk, session);
836 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
838 session_req_worker_update_msg_t *msg;
841 msg = (session_req_worker_update_msg_t *) data;
842 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
846 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
850 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
852 session_worker_update_reply_msg_t *msg;
855 msg = (session_worker_update_reply_msg_t *) data;
856 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
859 VDBG (0, "unknown handle 0x%llx", msg->handle);
865 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
866 msg->tx_fifo, (uword) ~0, 0, s))
868 VDBG (0, "failed to attach fifos for %u", s->session_index);
872 s->session_state = VCL_STATE_UPDATED;
874 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
875 s->vpp_handle, wrk->wrk_index);
879 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
882 if (vcm->cfg.vpp_app_socket_api)
883 return vcl_sapi_recv_fds (wrk, fds, n_fds);
885 return vcl_bapi_recv_fds (wrk, fds, n_fds);
889 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
891 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
892 session_app_add_segment_msg_t *msg;
896 msg = (session_app_add_segment_msg_t *) data;
900 vcl_api_recv_fd (wrk, &fd, 1);
901 seg_type = SSVM_SEGMENT_MEMFD;
904 segment_handle = msg->segment_handle;
905 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
907 clib_warning ("invalid segment handle");
911 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
914 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
918 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
923 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
925 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
926 vcl_segment_detach (msg->segment_handle);
927 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
931 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
933 if (!vcm->wrk_rpc_fn)
936 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
940 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
942 session_disconnected_msg_t *disconnected_msg;
943 session_connected_msg_t *connected_msg;
944 session_reset_msg_t *reset_msg;
945 session_event_t *ecpy;
949 switch (e->event_type)
951 case SESSION_IO_EVT_RX:
952 case SESSION_IO_EVT_TX:
953 s = vcl_session_get (wrk, e->session_index);
954 if (!s || !vcl_session_is_open (s))
956 vec_add1 (wrk->unhandled_evts_vector, *e);
958 case SESSION_CTRL_EVT_BOUND:
959 /* We can only wait for only one listen so not postponed */
960 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
962 case SESSION_CTRL_EVT_ACCEPTED:
963 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
964 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
966 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
969 ecpy->session_index = s->session_index;
972 case SESSION_CTRL_EVT_CONNECTED:
973 connected_msg = (session_connected_msg_t *) e->data;
974 sid = vcl_session_connected_handler (wrk, connected_msg);
975 if (!(s = vcl_session_get (wrk, sid)))
977 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
979 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
982 ecpy->session_index = s->session_index;
985 case SESSION_CTRL_EVT_DISCONNECTED:
986 disconnected_msg = (session_disconnected_msg_t *) e->data;
987 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
989 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
991 vec_add1 (wrk->unhandled_evts_vector, *e);
994 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
996 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
999 case SESSION_CTRL_EVT_RESET:
1000 reset_msg = (session_reset_msg_t *) e->data;
1001 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1003 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1005 vec_add1 (wrk->unhandled_evts_vector, *e);
1008 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1010 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1011 vcl_session_unlisten_reply_handler (wrk, e->data);
1013 case SESSION_CTRL_EVT_MIGRATED:
1014 vcl_session_migrated_handler (wrk, e->data);
1016 case SESSION_CTRL_EVT_CLEANUP:
1017 vcl_session_cleanup_handler (wrk, e->data);
1019 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1020 vcl_session_req_worker_update_handler (wrk, e->data);
1022 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1023 vcl_session_worker_update_reply_handler (wrk, e->data);
1025 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1026 vcl_session_app_add_segment_handler (wrk, e->data);
1028 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1029 vcl_session_app_del_segment_handler (wrk, e->data);
1031 case SESSION_CTRL_EVT_APP_WRK_RPC:
1032 vcl_worker_rpc_handler (wrk, e->data);
1035 clib_warning ("unhandled %u", e->event_type);
1041 vppcom_wait_for_session_state_change (u32 session_index,
1042 vcl_session_state_t state,
1045 vcl_worker_t *wrk = vcl_worker_get_current ();
1046 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1047 vcl_session_t *volatile session;
1048 svm_msg_q_msg_t msg;
1053 session = vcl_session_get (wrk, session_index);
1054 if (PREDICT_FALSE (!session))
1056 return VPPCOM_EBADFD;
1058 if (session->session_state == state)
1062 if (session->session_state == VCL_STATE_DETACHED)
1064 return VPPCOM_ECONNREFUSED;
1067 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1072 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1073 vcl_handle_mq_event (wrk, e);
1074 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1076 while (clib_time_now (&wrk->clib_time) < timeout);
1078 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1079 vppcom_session_state_str (state));
1080 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1082 return VPPCOM_ETIMEDOUT;
1086 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1088 vcl_session_state_t state;
1092 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1095 vec_foreach (sip, wrk->pending_session_wrk_updates)
1097 s = vcl_session_get (wrk, *sip);
1098 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1099 state = s->session_state;
1100 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1102 s->session_state = state;
1104 vec_reset_length (wrk->pending_session_wrk_updates);
1108 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1110 svm_msg_q_msg_t *msg;
1115 mq = wrk->app_event_queue;
1116 vcl_mq_dequeue_batch (wrk, mq, ~0);
1118 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1120 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1121 e = svm_msg_q_msg_data (mq, msg);
1122 vcl_handle_mq_event (wrk, e);
1123 svm_msg_q_free_msg (mq, msg);
1125 vec_reset_length (wrk->mq_msg_vector);
1126 vcl_handle_pending_wrk_updates (wrk);
1130 vcl_flush_mq_events (void)
1132 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1136 vppcom_session_unbind (u32 session_handle)
1138 vcl_worker_t *wrk = vcl_worker_get_current ();
1139 session_accepted_msg_t *accepted_msg;
1140 vcl_session_t *session = 0;
1141 vcl_session_msg_t *evt;
1143 session = vcl_session_get_w_handle (wrk, session_handle);
1145 return VPPCOM_EBADFD;
1147 /* Flush pending accept events, if any */
1148 while (clib_fifo_elts (session->accept_evts_fifo))
1150 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1151 accepted_msg = &evt->accepted_msg;
1152 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1153 vcl_send_session_accepted_reply (session->vpp_evt_q,
1154 accepted_msg->context,
1155 accepted_msg->handle, -1);
1157 clib_fifo_free (session->accept_evts_fifo);
1159 vcl_send_session_unlisten (wrk, session);
1161 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1162 session->vpp_handle);
1163 vcl_evt (VCL_EVT_UNBIND, session);
1165 session->vpp_handle = ~0;
1166 session->session_state = VCL_STATE_DISCONNECT;
1174 * Notify vpp of the disconnect and mark the worker as free. If we're the
1175 * last worker, do a full cleanup otherwise, since we're probably a forked
1176 * child, avoid syscalls as much as possible. We might've lost privileges.
1179 vppcom_app_exit (void)
1181 if (!pool_elts (vcm->workers))
1183 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1184 vcl_set_worker_index (~0);
1185 vcl_elog_stop (vcm);
1189 vcl_api_attach (void)
1191 if (vcm->cfg.vpp_app_socket_api)
1192 return vcl_sapi_attach ();
1194 return vcl_bapi_attach ();
1198 vcl_api_detach (vcl_worker_t * wrk)
1200 vcl_send_app_detach (wrk);
1202 if (vcm->cfg.vpp_app_socket_api)
1203 return vcl_sapi_detach (wrk);
1205 return vcl_bapi_disconnect_from_vpp ();
1209 * VPPCOM Public API functions
1212 vppcom_app_create (const char *app_name)
1214 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1219 VDBG (1, "already initialized");
1220 return VPPCOM_EEXIST;
1224 vppcom_cfg (&vcm->cfg);
1225 vcl_cfg = &vcm->cfg;
1227 vcm->main_cpu = pthread_self ();
1228 vcm->main_pid = getpid ();
1229 vcm->app_name = format (0, "%s", app_name);
1230 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1231 20 /* timeout in secs */ );
1232 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1233 clib_spinlock_init (&vcm->workers_lock);
1234 clib_rwlock_init (&vcm->segment_table_lock);
1235 atexit (vppcom_app_exit);
1236 vcl_elog_init (vcm);
1238 /* Allocate default worker */
1239 vcl_worker_alloc_and_init ();
1241 if ((rv = vcl_api_attach ()))
1244 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1245 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1251 vppcom_app_destroy (void)
1253 vcl_worker_t *wrk, *current_wrk;
1256 if (!pool_elts (vcm->workers))
1259 vcl_evt (VCL_EVT_DETACH, vcm);
1261 current_wrk = vcl_worker_get_current ();
1264 pool_foreach (wrk, vcm->workers) {
1265 if (current_wrk != wrk)
1266 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1270 vcl_api_detach (current_wrk);
1271 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1273 vcl_elog_stop (vcm);
1276 * Free the heap and fix vcm
1278 heap = clib_mem_get_heap ();
1279 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1281 vcm = &_vppcom_main;
1286 vppcom_session_create (u8 proto, u8 is_nonblocking)
1288 vcl_worker_t *wrk = vcl_worker_get_current ();
1289 vcl_session_t *session;
1291 session = vcl_session_alloc (wrk);
1293 session->session_type = proto;
1294 session->session_state = VCL_STATE_CLOSED;
1295 session->vpp_handle = ~0;
1296 session->ckpair_index = ~0;
1297 session->is_dgram = vcl_proto_is_dgram (proto);
1300 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1302 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1303 is_nonblocking, session_index);
1305 VDBG (0, "created session %u", session->session_index);
1307 return vcl_session_handle (session);
1311 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1312 vcl_session_handle_t sh, u8 do_disconnect)
1316 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1318 if (s->flags & VCL_SESSION_F_IS_VEP)
1320 u32 next_sh = s->vep.next_sh;
1321 while (next_sh != ~0)
1323 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1324 if (PREDICT_FALSE (rv < 0))
1325 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1326 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1327 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1328 next_sh = s->vep.next_sh;
1333 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1335 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1337 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1338 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1339 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1344 VDBG (1, "session %u [0x%llx] disconnect skipped",
1345 s->session_index, s->vpp_handle);
1349 if (s->session_state == VCL_STATE_LISTEN)
1351 rv = vppcom_session_unbind (sh);
1352 if (PREDICT_FALSE (rv < 0))
1353 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1354 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1355 vppcom_retval_str (rv));
1358 else if (vcl_session_is_ready (s)
1359 || (vcl_session_is_connectable_listener (wrk, s)))
1361 rv = vppcom_session_disconnect (sh);
1362 if (PREDICT_FALSE (rv < 0))
1363 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1364 " rv %d (%s)", s->session_index, s->vpp_handle,
1365 rv, vppcom_retval_str (rv));
1367 else if (s->session_state == VCL_STATE_DISCONNECT)
1369 vcl_send_session_reset_reply (wrk, s, 0);
1371 else if (s->session_state == VCL_STATE_DETACHED)
1373 /* Should not happen. VPP cleaned up before app confirmed close */
1374 VDBG (0, "vpp freed session %d before close", s->session_index);
1378 s->session_state = VCL_STATE_CLOSED;
1380 /* Session is removed only after vpp confirms the disconnect */
1384 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1386 vcl_session_free (wrk, s);
1387 vcl_evt (VCL_EVT_CLOSE, s, rv);
1393 vppcom_session_close (uint32_t session_handle)
1395 vcl_worker_t *wrk = vcl_worker_get_current ();
1396 vcl_session_t *session;
1398 session = vcl_session_get_w_handle (wrk, session_handle);
1400 return VPPCOM_EBADFD;
1401 return vcl_session_cleanup (wrk, session, session_handle,
1402 1 /* do_disconnect */ );
1406 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1408 vcl_worker_t *wrk = vcl_worker_get_current ();
1409 vcl_session_t *session = 0;
1412 return VPPCOM_EINVAL;
1414 session = vcl_session_get_w_handle (wrk, session_handle);
1416 return VPPCOM_EBADFD;
1418 if (session->flags & VCL_SESSION_F_IS_VEP)
1420 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1421 session->session_index);
1422 return VPPCOM_EBADFD;
1425 session->transport.is_ip4 = ep->is_ip4;
1427 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1428 sizeof (ip4_address_t));
1430 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1431 sizeof (ip6_address_t));
1432 session->transport.lcl_port = ep->port;
1434 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1435 "proto %s", session->session_index, session_handle,
1436 session->transport.is_ip4 ? "IPv4" : "IPv6",
1437 format_ip46_address, &session->transport.lcl_ip,
1438 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1439 clib_net_to_host_u16 (session->transport.lcl_port),
1440 vppcom_proto_str (session->session_type));
1441 vcl_evt (VCL_EVT_BIND, session);
1443 if (session->session_type == VPPCOM_PROTO_UDP)
1444 vppcom_session_listen (session_handle, 10);
1450 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1452 vcl_worker_t *wrk = vcl_worker_get_current ();
1453 vcl_session_t *listen_session = 0;
1454 u64 listen_vpp_handle;
1457 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1458 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1459 return VPPCOM_EBADFD;
1461 if (q_len == 0 || q_len == ~0)
1462 q_len = vcm->cfg.listen_queue_size;
1464 listen_vpp_handle = listen_session->vpp_handle;
1465 if (listen_session->session_state == VCL_STATE_LISTEN)
1467 VDBG (0, "session %u [0x%llx]: already in listen state!",
1468 listen_sh, listen_vpp_handle);
1472 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1475 * Send listen request to vpp and wait for reply
1477 vcl_send_session_listen (wrk, listen_session);
1478 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1480 vcm->cfg.session_timeout);
1482 if (PREDICT_FALSE (rv))
1484 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1485 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1486 listen_sh, listen_session->vpp_handle, rv,
1487 vppcom_retval_str (rv));
1495 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1497 if (ls->flags & VCL_SESSION_F_IS_VEP)
1499 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1501 return VPPCOM_EBADFD;
1504 if ((ls->session_state != VCL_STATE_LISTEN)
1505 && (!vcl_session_is_connectable_listener (wrk, ls)))
1507 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1508 " (%s)", ls->vpp_handle, ls->session_state,
1509 vppcom_session_state_str (ls->session_state));
1510 return VPPCOM_EBADFD;
1516 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1518 if (!strcmp (proto_str, "TCP"))
1519 *proto = VPPCOM_PROTO_TCP;
1520 else if (!strcmp (proto_str, "tcp"))
1521 *proto = VPPCOM_PROTO_TCP;
1522 else if (!strcmp (proto_str, "UDP"))
1523 *proto = VPPCOM_PROTO_UDP;
1524 else if (!strcmp (proto_str, "udp"))
1525 *proto = VPPCOM_PROTO_UDP;
1526 else if (!strcmp (proto_str, "TLS"))
1527 *proto = VPPCOM_PROTO_TLS;
1528 else if (!strcmp (proto_str, "tls"))
1529 *proto = VPPCOM_PROTO_TLS;
1530 else if (!strcmp (proto_str, "QUIC"))
1531 *proto = VPPCOM_PROTO_QUIC;
1532 else if (!strcmp (proto_str, "quic"))
1533 *proto = VPPCOM_PROTO_QUIC;
1534 else if (!strcmp (proto_str, "DTLS"))
1535 *proto = VPPCOM_PROTO_DTLS;
1536 else if (!strcmp (proto_str, "dtls"))
1537 *proto = VPPCOM_PROTO_DTLS;
1544 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1547 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1548 vcl_worker_t *wrk = vcl_worker_get_current ();
1549 session_accepted_msg_t accepted_msg;
1550 vcl_session_t *listen_session = 0;
1551 vcl_session_t *client_session = 0;
1552 vcl_session_msg_t *evt;
1558 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1559 if (!listen_session)
1560 return VPPCOM_EBADFD;
1562 listen_session_index = listen_session->session_index;
1563 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1566 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1568 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1569 accept_flags = evt->flags;
1570 accepted_msg = evt->accepted_msg;
1574 is_nonblocking = vcl_session_has_attr (listen_session,
1575 VCL_SESS_ATTR_NONBLOCK);
1578 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1579 return VPPCOM_EAGAIN;
1581 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1582 vcl_worker_flush_mq_events (wrk);
1588 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1589 listen_session_index);
1590 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1591 return VPPCOM_ECONNABORTED;
1593 listen_session = vcl_session_get (wrk, listen_session_index);
1594 client_session = vcl_session_get (wrk, client_session_index);
1596 if (flags & O_NONBLOCK)
1597 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1599 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1600 " flags %d, is_nonblocking %u", listen_session->session_index,
1601 listen_session->vpp_handle, client_session_index,
1602 client_session->vpp_handle, flags,
1603 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1607 ep->is_ip4 = client_session->transport.is_ip4;
1608 ep->port = client_session->transport.rmt_port;
1609 if (client_session->transport.is_ip4)
1610 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1611 sizeof (ip4_address_t));
1613 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1614 sizeof (ip6_address_t));
1617 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1618 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1619 client_session_index, client_session->vpp_handle,
1620 format_ip46_address, &client_session->transport.rmt_ip,
1621 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1622 clib_net_to_host_u16 (client_session->transport.rmt_port),
1623 format_ip46_address, &client_session->transport.lcl_ip,
1624 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1625 clib_net_to_host_u16 (client_session->transport.lcl_port));
1626 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1627 client_session_index);
1630 * Session might have been closed already
1634 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1635 client_session->session_state = VCL_STATE_VPP_CLOSING;
1636 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1637 client_session->session_state = VCL_STATE_DISCONNECT;
1639 return vcl_session_handle (client_session);
1643 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1645 vcl_worker_t *wrk = vcl_worker_get_current ();
1646 vcl_session_t *session = 0;
1650 session = vcl_session_get_w_handle (wrk, session_handle);
1652 return VPPCOM_EBADFD;
1653 session_index = session->session_index;
1655 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1657 VDBG (0, "ERROR: cannot connect epoll session %u!",
1658 session->session_index);
1659 return VPPCOM_EBADFD;
1662 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1664 VDBG (0, "session handle %u [0x%llx]: session already "
1665 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1666 session_handle, session->vpp_handle,
1667 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1668 &session->transport.rmt_ip, session->transport.is_ip4 ?
1669 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1670 clib_net_to_host_u16 (session->transport.rmt_port),
1671 vppcom_proto_str (session->session_type), session->session_state,
1672 vppcom_session_state_str (session->session_state));
1676 /* Attempt to connect a connectionless listener */
1677 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1679 if (session->session_type != VPPCOM_PROTO_UDP)
1680 return VPPCOM_EINVAL;
1681 vcl_send_session_unlisten (wrk, session);
1682 session->session_state = VCL_STATE_CLOSED;
1685 session->transport.is_ip4 = server_ep->is_ip4;
1686 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1687 session->transport.rmt_port = server_ep->port;
1688 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1689 session->flags |= VCL_SESSION_F_CONNECTED;
1691 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1692 "port %d proto %s", session_handle,
1693 vppcom_session_state_str (session->session_state),
1694 session->transport.is_ip4 ? "IPv4" : "IPv6",
1695 format_ip46_address,
1696 &session->transport.rmt_ip, session->transport.is_ip4 ?
1697 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1698 clib_net_to_host_u16 (session->transport.rmt_port),
1699 vppcom_proto_str (session->session_type));
1701 vcl_send_session_connect (wrk, session);
1703 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1705 /* State set to STATE_UPDATED to ensure the session is not assumed
1706 * to be ready and to also allow the app to close it prior to vpp's
1707 * connected reply. */
1708 session->session_state = VCL_STATE_UPDATED;
1709 return VPPCOM_EINPROGRESS;
1713 * Wait for reply from vpp if blocking
1715 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1716 vcm->cfg.session_timeout);
1718 session = vcl_session_get (wrk, session_index);
1719 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1720 session->vpp_handle, rv ? "failed" : "succeeded");
1726 vppcom_session_stream_connect (uint32_t session_handle,
1727 uint32_t parent_session_handle)
1729 vcl_worker_t *wrk = vcl_worker_get_current ();
1730 vcl_session_t *session, *parent_session;
1731 u32 session_index, parent_session_index;
1734 session = vcl_session_get_w_handle (wrk, session_handle);
1736 return VPPCOM_EBADFD;
1737 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1738 if (!parent_session)
1739 return VPPCOM_EBADFD;
1741 session_index = session->session_index;
1742 parent_session_index = parent_session->session_index;
1743 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1745 VDBG (0, "ERROR: cannot connect epoll session %u!",
1746 session->session_index);
1747 return VPPCOM_EBADFD;
1750 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1752 VDBG (0, "session handle %u [0x%llx]: session already "
1753 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1754 session_handle, session->vpp_handle,
1755 parent_session_handle, parent_session->vpp_handle,
1756 vppcom_proto_str (session->session_type), session->session_state,
1757 vppcom_session_state_str (session->session_state));
1761 /* Connect to quic session specifics */
1762 session->transport.is_ip4 = parent_session->transport.is_ip4;
1763 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1764 session->transport.rmt_port = 0;
1765 session->parent_handle = parent_session->vpp_handle;
1767 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1768 session_handle, parent_session_handle, parent_session->vpp_handle);
1771 * Send connect request and wait for reply from vpp
1773 vcl_send_session_connect (wrk, session);
1774 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1775 vcm->cfg.session_timeout);
1777 session->listener_index = parent_session_index;
1778 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1780 parent_session->n_accepted_sessions++;
1782 session = vcl_session_get (wrk, session_index);
1783 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1784 session->vpp_handle, rv ? "failed" : "succeeded");
1790 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1793 vcl_worker_t *wrk = vcl_worker_get_current ();
1794 int rv, n_read = 0, is_nonblocking;
1795 vcl_session_t *s = 0;
1796 svm_fifo_t *rx_fifo;
1801 if (PREDICT_FALSE (!buf))
1802 return VPPCOM_EINVAL;
1804 s = vcl_session_get_w_handle (wrk, session_handle);
1805 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1806 return VPPCOM_EBADFD;
1808 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1810 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1811 s->session_index, s->vpp_handle, s->session_state,
1812 vppcom_session_state_str (s->session_state));
1813 return vcl_session_closed_error (s);
1816 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1817 is_ct = vcl_session_is_ct (s);
1818 mq = wrk->app_event_queue;
1819 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1820 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1822 if (svm_fifo_is_empty_cons (rx_fifo))
1826 if (vcl_session_is_closing (s))
1827 return vcl_session_closing_error (s);
1829 svm_fifo_unset_event (s->rx_fifo);
1830 svm_fifo_unset_event (rx_fifo);
1831 return VPPCOM_EWOULDBLOCK;
1833 while (svm_fifo_is_empty_cons (rx_fifo))
1835 if (vcl_session_is_closing (s))
1836 return vcl_session_closing_error (s);
1839 svm_fifo_unset_event (s->rx_fifo);
1840 svm_fifo_unset_event (rx_fifo);
1842 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1843 vcl_worker_flush_mq_events (wrk);
1850 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1852 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1857 if (svm_fifo_is_empty_cons (rx_fifo))
1860 svm_fifo_unset_event (s->rx_fifo);
1861 svm_fifo_unset_event (rx_fifo);
1862 if (!svm_fifo_is_empty_cons (rx_fifo)
1863 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1865 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1866 e->event_type = SESSION_IO_EVT_RX;
1867 e->session_index = s->session_index;
1870 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1872 /* More data enqueued while reading. Try to drain it
1873 * or fill the buffer. Avoid doing that for dgrams */
1879 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1881 svm_fifo_clear_deq_ntf (rx_fifo);
1882 app_send_io_evt_to_vpp (s->vpp_evt_q,
1883 s->rx_fifo->shr->master_session_index,
1884 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1887 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1888 s->vpp_handle, n_read, rx_fifo);
1894 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1896 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1900 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1902 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1906 vppcom_session_read_segments (uint32_t session_handle,
1907 vppcom_data_segment_t * ds, uint32_t n_segments,
1910 vcl_worker_t *wrk = vcl_worker_get_current ();
1911 int n_read = 0, is_nonblocking;
1912 vcl_session_t *s = 0;
1913 svm_fifo_t *rx_fifo;
1917 s = vcl_session_get_w_handle (wrk, session_handle);
1918 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1919 return VPPCOM_EBADFD;
1921 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1922 return vcl_session_closed_error (s);
1924 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1925 is_ct = vcl_session_is_ct (s);
1926 mq = wrk->app_event_queue;
1927 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1928 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1930 if (svm_fifo_is_empty_cons (rx_fifo))
1935 svm_fifo_unset_event (s->rx_fifo);
1936 svm_fifo_unset_event (rx_fifo);
1937 return VPPCOM_EWOULDBLOCK;
1939 while (svm_fifo_is_empty_cons (rx_fifo))
1941 if (vcl_session_is_closing (s))
1942 return vcl_session_closing_error (s);
1945 svm_fifo_unset_event (s->rx_fifo);
1946 svm_fifo_unset_event (rx_fifo);
1948 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1949 vcl_worker_flush_mq_events (wrk);
1953 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1954 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1956 return VPPCOM_EAGAIN;
1958 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1961 svm_fifo_unset_event (s->rx_fifo);
1962 svm_fifo_unset_event (rx_fifo);
1963 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1964 && svm_fifo_set_event (rx_fifo)
1965 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1968 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1969 e->event_type = SESSION_IO_EVT_RX;
1970 e->session_index = s->session_index;
1974 s->rx_bytes_pending += n_read;
1979 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
1981 vcl_worker_t *wrk = vcl_worker_get_current ();
1985 s = vcl_session_get_w_handle (wrk, session_handle);
1986 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1989 is_ct = vcl_session_is_ct (s);
1990 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
1992 ASSERT (s->rx_bytes_pending < n_bytes);
1993 s->rx_bytes_pending -= n_bytes;
1997 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
1999 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2001 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2007 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2008 size_t n, u8 is_flush, u8 is_dgram)
2010 int n_write, is_nonblocking;
2011 session_evt_type_t et;
2012 svm_fifo_t *tx_fifo;
2016 if (PREDICT_FALSE (!buf || n == 0))
2017 return VPPCOM_EINVAL;
2019 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2021 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2022 " session!", s->session_index, s->vpp_handle);
2023 return VPPCOM_EBADFD;
2026 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2028 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2029 s->session_index, s->vpp_handle, s->session_state,
2030 vppcom_session_state_str (s->session_state));
2031 return vcl_session_closed_error (s);;
2034 is_ct = vcl_session_is_ct (s);
2035 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2036 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2038 mq = wrk->app_event_queue;
2039 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2043 return VPPCOM_EWOULDBLOCK;
2045 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2047 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2048 if (vcl_session_is_closing (s))
2049 return vcl_session_closing_error (s);
2051 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2052 vcl_worker_flush_mq_events (wrk);
2056 et = SESSION_IO_EVT_TX;
2057 if (is_flush && !is_ct)
2058 et = SESSION_IO_EVT_TX_FLUSH;
2061 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2062 s->vpp_evt_q, buf, n, et,
2063 0 /* do_evt */ , SVM_Q_WAIT);
2065 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2066 0 /* do_evt */ , SVM_Q_WAIT);
2068 if (svm_fifo_set_event (s->tx_fifo))
2069 app_send_io_evt_to_vpp (
2070 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2072 /* The underlying fifo segment can run out of memory */
2073 if (PREDICT_FALSE (n_write < 0))
2074 return VPPCOM_EAGAIN;
2076 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2077 s->vpp_handle, n_write);
2083 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2085 vcl_worker_t *wrk = vcl_worker_get_current ();
2088 s = vcl_session_get_w_handle (wrk, session_handle);
2089 if (PREDICT_FALSE (!s))
2090 return VPPCOM_EBADFD;
2092 return vppcom_session_write_inline (wrk, s, buf, n,
2093 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2097 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2099 vcl_worker_t *wrk = vcl_worker_get_current ();
2102 s = vcl_session_get_w_handle (wrk, session_handle);
2103 if (PREDICT_FALSE (!s))
2104 return VPPCOM_EBADFD;
2106 return vppcom_session_write_inline (wrk, s, buf, n,
2107 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2110 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2111 if (PREDICT_FALSE (!_s->rx_fifo)) \
2113 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2115 if (!vcl_session_is_ct (_s)) \
2117 svm_fifo_unset_event (_s->rx_fifo); \
2118 if (svm_fifo_is_empty (_s->rx_fifo)) \
2121 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2123 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2124 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2130 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2131 unsigned long n_bits, unsigned long *read_map,
2132 unsigned long *write_map,
2133 unsigned long *except_map, u32 * bits_set)
2135 session_disconnected_msg_t *disconnected_msg;
2136 session_connected_msg_t *connected_msg;
2140 switch (e->event_type)
2142 case SESSION_IO_EVT_RX:
2143 sid = e->session_index;
2144 s = vcl_session_get (wrk, sid);
2145 if (!s || !vcl_session_is_open (s))
2147 vcl_fifo_rx_evt_valid_or_break (s);
2148 if (sid < n_bits && read_map)
2150 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2154 case SESSION_IO_EVT_TX:
2155 sid = e->session_index;
2156 s = vcl_session_get (wrk, sid);
2157 if (!s || !vcl_session_is_open (s))
2159 if (sid < n_bits && write_map)
2161 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2165 case SESSION_CTRL_EVT_ACCEPTED:
2167 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2169 s = vcl_session_get (wrk, e->session_index);
2172 sid = s->session_index;
2173 if (sid < n_bits && read_map)
2175 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2179 case SESSION_CTRL_EVT_CONNECTED:
2182 connected_msg = (session_connected_msg_t *) e->data;
2183 sid = vcl_session_connected_handler (wrk, connected_msg);
2186 sid = e->session_index;
2187 if (sid == VCL_INVALID_SESSION_INDEX)
2189 if (sid < n_bits && write_map)
2191 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2195 case SESSION_CTRL_EVT_DISCONNECTED:
2196 disconnected_msg = (session_disconnected_msg_t *) e->data;
2197 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2200 sid = s->session_index;
2201 if (sid < n_bits && except_map)
2203 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2207 case SESSION_CTRL_EVT_RESET:
2208 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2209 if (sid < n_bits && except_map)
2211 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2215 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2216 vcl_session_unlisten_reply_handler (wrk, e->data);
2218 case SESSION_CTRL_EVT_MIGRATED:
2219 vcl_session_migrated_handler (wrk, e->data);
2221 case SESSION_CTRL_EVT_CLEANUP:
2222 vcl_session_cleanup_handler (wrk, e->data);
2224 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2225 vcl_session_worker_update_reply_handler (wrk, e->data);
2227 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2228 vcl_session_req_worker_update_handler (wrk, e->data);
2230 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2231 vcl_session_app_add_segment_handler (wrk, e->data);
2233 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2234 vcl_session_app_del_segment_handler (wrk, e->data);
2236 case SESSION_CTRL_EVT_APP_WRK_RPC:
2237 vcl_worker_rpc_handler (wrk, e->data);
2240 clib_warning ("unhandled: %u", e->event_type);
2246 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2247 unsigned long n_bits, unsigned long *read_map,
2248 unsigned long *write_map, unsigned long *except_map,
2249 double time_to_wait, u32 * bits_set)
2251 svm_msg_q_msg_t *msg;
2255 if (svm_msg_q_is_empty (mq))
2262 else if (time_to_wait < 0)
2263 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2266 if (svm_msg_q_timedwait (mq, time_to_wait))
2270 vcl_mq_dequeue_batch (wrk, mq, ~0);
2272 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2274 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2275 e = svm_msg_q_msg_data (mq, msg);
2276 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2277 except_map, bits_set);
2278 svm_msg_q_free_msg (mq, msg);
2280 vec_reset_length (wrk->mq_msg_vector);
2281 vcl_handle_pending_wrk_updates (wrk);
2286 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2287 vcl_si_set * read_map, vcl_si_set * write_map,
2288 vcl_si_set * except_map, double time_to_wait,
2291 double wait = 0, start = 0;
2295 wait = time_to_wait;
2296 start = clib_time_now (&wrk->clib_time);
2301 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2302 write_map, except_map, wait, bits_set);
2308 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2316 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2317 vcl_si_set * read_map, vcl_si_set * write_map,
2318 vcl_si_set * except_map, double time_to_wait,
2321 vcl_mq_evt_conn_t *mqc;
2322 int __clib_unused n_read;
2326 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2327 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2328 vec_len (wrk->mq_events), time_to_wait);
2329 for (i = 0; i < n_mq_evts; i++)
2331 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2332 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2333 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2334 except_map, 0, bits_set);
2337 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2341 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2342 vcl_si_set * except_map, double time_to_wait)
2344 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2345 vcl_worker_t *wrk = vcl_worker_get_current ();
2346 vcl_session_t *s = 0;
2349 if (n_bits && read_map)
2351 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2352 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2353 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2354 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2356 if (n_bits && write_map)
2358 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2359 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2360 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2361 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2363 if (n_bits && except_map)
2365 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2366 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2367 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2368 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2377 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2379 if (!(s = vcl_session_get (wrk, sid)))
2381 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2386 if (vcl_session_write_ready (s))
2388 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2393 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2394 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2402 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2404 if (!(s = vcl_session_get (wrk, sid)))
2406 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2411 if (vcl_session_read_ready (s))
2413 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2420 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2422 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2423 read_map, write_map, except_map, &bits_set);
2425 vec_reset_length (wrk->unhandled_evts_vector);
2427 if (vcm->cfg.use_mq_eventfd)
2428 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2429 time_to_wait, &bits_set);
2431 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2432 time_to_wait, &bits_set);
2438 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2440 vppcom_epoll_t *vep;
2441 u32 sh = vep_handle;
2444 if (VPPCOM_DEBUG <= 2)
2447 s = vcl_session_get_w_handle (wrk, vep_handle);
2448 if (PREDICT_FALSE (!s))
2450 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2453 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2455 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2459 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2462 " is_vep_session = %u\n"
2463 " next_sh = 0x%x (%u)\n"
2464 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2465 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2467 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2469 s = vcl_session_get_w_handle (wrk, sh);
2470 if (PREDICT_FALSE (!s))
2472 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2475 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2477 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2479 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2481 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2485 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2486 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2487 sh, s->vep.vep_sh, vep_handle);
2488 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2490 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2492 " next_sh = 0x%x (%u)\n"
2493 " prev_sh = 0x%x (%u)\n"
2494 " vep_sh = 0x%x (%u)\n"
2495 " ev.events = 0x%x\n"
2496 " ev.data.u64 = 0x%llx\n"
2499 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2500 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2501 vep->ev.data.u64, vep->et_mask);
2506 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2510 vppcom_epoll_create (void)
2512 vcl_worker_t *wrk = vcl_worker_get_current ();
2513 vcl_session_t *vep_session;
2515 vep_session = vcl_session_alloc (wrk);
2517 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2518 vep_session->vep.vep_sh = ~0;
2519 vep_session->vep.next_sh = ~0;
2520 vep_session->vep.prev_sh = ~0;
2521 vep_session->vpp_handle = ~0;
2523 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2524 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2526 return vcl_session_handle (vep_session);
2530 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2531 struct epoll_event *event)
2533 vcl_worker_t *wrk = vcl_worker_get_current ();
2534 vcl_session_t *vep_session;
2539 if (vep_handle == session_handle)
2541 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2542 return VPPCOM_EINVAL;
2545 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2546 if (PREDICT_FALSE (!vep_session))
2548 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2549 return VPPCOM_EBADFD;
2551 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2553 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2554 return VPPCOM_EINVAL;
2557 ASSERT (vep_session->vep.vep_sh == ~0);
2558 ASSERT (vep_session->vep.prev_sh == ~0);
2560 s = vcl_session_get_w_handle (wrk, session_handle);
2561 if (PREDICT_FALSE (!s))
2563 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2564 return VPPCOM_EBADFD;
2566 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2568 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2569 return VPPCOM_EINVAL;
2575 if (PREDICT_FALSE (!event))
2577 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2578 return VPPCOM_EINVAL;
2580 if (vep_session->vep.next_sh != ~0)
2582 vcl_session_t *next_session;
2583 next_session = vcl_session_get_w_handle (wrk,
2584 vep_session->vep.next_sh);
2585 if (PREDICT_FALSE (!next_session))
2587 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2588 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2589 return VPPCOM_EBADFD;
2591 ASSERT (next_session->vep.prev_sh == vep_handle);
2592 next_session->vep.prev_sh = session_handle;
2594 s->vep.next_sh = vep_session->vep.next_sh;
2595 s->vep.prev_sh = vep_handle;
2596 s->vep.vep_sh = vep_handle;
2597 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2599 s->flags &= ~VCL_SESSION_F_IS_VEP;
2600 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2601 vep_session->vep.next_sh = session_handle;
2603 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2604 if (txf && (event->events & EPOLLOUT))
2605 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2607 /* Generate EPOLLOUT if tx fifo not full */
2608 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2610 session_event_t e = { 0 };
2611 e.event_type = SESSION_IO_EVT_TX;
2612 e.session_index = s->session_index;
2613 vec_add1 (wrk->unhandled_evts_vector, e);
2615 /* Generate EPOLLIN if rx fifo has data */
2616 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2618 session_event_t e = { 0 };
2619 e.event_type = SESSION_IO_EVT_RX;
2620 e.session_index = s->session_index;
2621 vec_add1 (wrk->unhandled_evts_vector, e);
2623 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2624 vep_handle, session_handle, event->events, event->data.u64);
2625 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2629 if (PREDICT_FALSE (!event))
2631 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2635 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2637 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2641 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2643 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2644 session_handle, s->vep.vep_sh, vep_handle);
2649 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2650 if ((event->events & EPOLLOUT) &&
2651 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2653 session_event_t e = { 0 };
2654 e.event_type = SESSION_IO_EVT_TX;
2655 e.session_index = s->session_index;
2656 vec_add1 (wrk->unhandled_evts_vector, e);
2658 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2660 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2661 if (event->events & EPOLLOUT)
2662 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2664 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2665 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2666 vep_handle, session_handle, event->events, event->data.u64);
2670 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2672 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2676 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2678 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2679 session_handle, s->vep.vep_sh, vep_handle);
2684 if (s->vep.prev_sh == vep_handle)
2685 vep_session->vep.next_sh = s->vep.next_sh;
2688 vcl_session_t *prev_session;
2689 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2690 if (PREDICT_FALSE (!prev_session))
2692 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2693 s->vep.prev_sh, session_handle);
2694 return VPPCOM_EBADFD;
2696 ASSERT (prev_session->vep.next_sh == session_handle);
2697 prev_session->vep.next_sh = s->vep.next_sh;
2699 if (s->vep.next_sh != ~0)
2701 vcl_session_t *next_session;
2702 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2703 if (PREDICT_FALSE (!next_session))
2705 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2706 s->vep.next_sh, session_handle);
2707 return VPPCOM_EBADFD;
2709 ASSERT (next_session->vep.prev_sh == session_handle);
2710 next_session->vep.prev_sh = s->vep.prev_sh;
2713 memset (&s->vep, 0, sizeof (s->vep));
2714 s->vep.next_sh = ~0;
2715 s->vep.prev_sh = ~0;
2717 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2719 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2721 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2723 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2725 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2729 VDBG (0, "Invalid operation (%d)!", op);
2733 vep_verify_epoll_chain (wrk, vep_handle);
2740 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2741 struct epoll_event *events, u32 * num_ev)
2743 session_disconnected_msg_t *disconnected_msg;
2744 session_connected_msg_t *connected_msg;
2745 u32 sid = ~0, session_events;
2746 u64 session_evt_data = ~0;
2750 switch (e->event_type)
2752 case SESSION_IO_EVT_RX:
2753 sid = e->session_index;
2754 s = vcl_session_get (wrk, sid);
2755 if (vcl_session_is_closed (s))
2757 vcl_fifo_rx_evt_valid_or_break (s);
2758 session_events = s->vep.ev.events;
2759 if (!(EPOLLIN & s->vep.ev.events)
2760 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2763 events[*num_ev].events |= EPOLLIN;
2764 session_evt_data = s->vep.ev.data.u64;
2765 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2767 case SESSION_IO_EVT_TX:
2768 sid = e->session_index;
2769 s = vcl_session_get (wrk, sid);
2770 if (vcl_session_is_closed (s))
2772 session_events = s->vep.ev.events;
2773 if (!(EPOLLOUT & session_events))
2776 events[*num_ev].events |= EPOLLOUT;
2777 session_evt_data = s->vep.ev.data.u64;
2778 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2779 s->ct_tx_fifo : s->tx_fifo);
2781 case SESSION_CTRL_EVT_ACCEPTED:
2783 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2785 s = vcl_session_get (wrk, e->session_index);
2788 session_events = s->vep.ev.events;
2789 sid = s->session_index;
2790 if (!(EPOLLIN & session_events))
2793 events[*num_ev].events |= EPOLLIN;
2794 session_evt_data = s->vep.ev.data.u64;
2796 case SESSION_CTRL_EVT_CONNECTED:
2799 connected_msg = (session_connected_msg_t *) e->data;
2800 sid = vcl_session_connected_handler (wrk, connected_msg);
2803 sid = e->session_index;
2804 s = vcl_session_get (wrk, sid);
2805 if (vcl_session_is_closed (s))
2807 session_events = s->vep.ev.events;
2808 /* Generate EPOLLOUT because there's no connected event */
2809 if (!(EPOLLOUT & session_events))
2812 events[*num_ev].events |= EPOLLOUT;
2813 session_evt_data = s->vep.ev.data.u64;
2814 if (s->session_state == VCL_STATE_DETACHED)
2815 events[*num_ev].events |= EPOLLHUP;
2817 case SESSION_CTRL_EVT_DISCONNECTED:
2818 disconnected_msg = (session_disconnected_msg_t *) e->data;
2819 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2820 if (vcl_session_is_closed (s))
2822 sid = s->session_index;
2823 session_events = s->vep.ev.events;
2825 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2826 session_evt_data = s->vep.ev.data.u64;
2828 case SESSION_CTRL_EVT_RESET:
2829 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2830 s = vcl_session_get (wrk, sid);
2831 if (vcl_session_is_closed (s))
2833 session_events = s->vep.ev.events;
2835 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2836 session_evt_data = s->vep.ev.data.u64;
2838 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2839 vcl_session_unlisten_reply_handler (wrk, e->data);
2841 case SESSION_CTRL_EVT_MIGRATED:
2842 vcl_session_migrated_handler (wrk, e->data);
2844 case SESSION_CTRL_EVT_CLEANUP:
2845 vcl_session_cleanup_handler (wrk, e->data);
2847 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2848 vcl_session_req_worker_update_handler (wrk, e->data);
2850 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2851 vcl_session_worker_update_reply_handler (wrk, e->data);
2853 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2854 vcl_session_app_add_segment_handler (wrk, e->data);
2856 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2857 vcl_session_app_del_segment_handler (wrk, e->data);
2859 case SESSION_CTRL_EVT_APP_WRK_RPC:
2860 vcl_worker_rpc_handler (wrk, e->data);
2863 VDBG (0, "unhandled: %u", e->event_type);
2869 events[*num_ev].data.u64 = session_evt_data;
2870 if (EPOLLONESHOT & session_events)
2872 s = vcl_session_get (wrk, sid);
2873 s->vep.ev.events = 0;
2880 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2881 struct epoll_event *events, u32 maxevents,
2882 double wait_for_time, u32 * num_ev)
2884 svm_msg_q_msg_t *msg;
2888 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2889 goto handle_dequeued;
2891 if (svm_msg_q_is_empty (mq))
2895 else if (wait_for_time < 0)
2896 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2899 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2903 ASSERT (maxevents > *num_ev);
2904 vcl_mq_dequeue_batch (wrk, mq, ~0);
2907 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2909 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2910 e = svm_msg_q_msg_data (mq, msg);
2911 if (*num_ev < maxevents)
2912 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2914 vcl_handle_mq_event (wrk, e);
2915 svm_msg_q_free_msg (mq, msg);
2917 vec_reset_length (wrk->mq_msg_vector);
2918 vcl_handle_pending_wrk_updates (wrk);
2923 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2924 int maxevents, u32 n_evts, double wait_for_time)
2926 double wait = 0, start = 0, now;
2930 wait = wait_for_time;
2931 start = clib_time_now (&wrk->clib_time);
2936 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2943 now = clib_time_now (&wrk->clib_time);
2944 wait -= (now - start) * 1e3;
2953 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2954 int maxevents, u32 n_evts, double wait_for_time)
2956 double wait = 0, start = 0, now;
2957 int __clib_unused n_read;
2958 vcl_mq_evt_conn_t *mqc;
2962 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2965 wait = wait_for_time;
2966 start = clib_time_now (&wrk->clib_time);
2971 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2972 vec_len (wrk->mq_events), wait);
2975 VDBG (0, "epoll_wait error %u", errno);
2979 for (i = 0; i < n_mq_evts; i++)
2981 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2982 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2983 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
2992 now = clib_time_now (&wrk->clib_time);
2993 wait -= (now - start) * 1e3;
3002 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3003 int maxevents, double wait_for_time)
3005 vcl_worker_t *wrk = vcl_worker_get_current ();
3006 vcl_session_t *vep_session;
3010 if (PREDICT_FALSE (maxevents <= 0))
3012 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3013 return VPPCOM_EINVAL;
3016 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3018 return VPPCOM_EBADFD;
3020 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3022 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3023 return VPPCOM_EINVAL;
3026 memset (events, 0, sizeof (*events) * maxevents);
3028 if (vec_len (wrk->unhandled_evts_vector))
3030 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3032 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3034 if (n_evts == maxevents)
3036 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3040 vec_reset_length (wrk->unhandled_evts_vector);
3043 if (vcm->cfg.use_mq_eventfd)
3044 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3047 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3052 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3053 void *buffer, uint32_t * buflen)
3055 vcl_worker_t *wrk = vcl_worker_get_current ();
3056 u32 *flags = buffer, tmp_flags = 0;
3057 vppcom_endpt_t *ep = buffer;
3058 vcl_session_t *session;
3061 session = vcl_session_get_w_handle (wrk, session_handle);
3063 return VPPCOM_EBADFD;
3067 case VPPCOM_ATTR_GET_NREAD:
3068 rv = vcl_session_read_ready (session);
3069 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3073 case VPPCOM_ATTR_GET_NWRITE:
3074 rv = vcl_session_write_ready (session);
3075 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3079 case VPPCOM_ATTR_GET_FLAGS:
3080 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3084 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3086 *buflen = sizeof (*flags);
3087 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3088 "is_nonblocking = %u", session_handle, *flags,
3089 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3095 case VPPCOM_ATTR_SET_FLAGS:
3096 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3098 if (*flags & O_NONBLOCK)
3099 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3101 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3103 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3104 " is_nonblocking = %u", session_handle, *flags,
3105 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3111 case VPPCOM_ATTR_GET_PEER_ADDR:
3112 if (PREDICT_TRUE (buffer && buflen &&
3113 (*buflen >= sizeof (*ep)) && ep->ip))
3115 ep->is_ip4 = session->transport.is_ip4;
3116 ep->port = session->transport.rmt_port;
3117 if (session->transport.is_ip4)
3118 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3119 sizeof (ip4_address_t));
3121 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3122 sizeof (ip6_address_t));
3123 *buflen = sizeof (*ep);
3124 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3125 "addr = %U, port %u", session_handle, ep->is_ip4,
3126 format_ip46_address, &session->transport.rmt_ip,
3127 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3128 clib_net_to_host_u16 (ep->port));
3134 case VPPCOM_ATTR_GET_LCL_ADDR:
3135 if (PREDICT_TRUE (buffer && buflen &&
3136 (*buflen >= sizeof (*ep)) && ep->ip))
3138 ep->is_ip4 = session->transport.is_ip4;
3139 ep->port = session->transport.lcl_port;
3140 if (session->transport.is_ip4)
3141 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3142 sizeof (ip4_address_t));
3144 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3145 sizeof (ip6_address_t));
3146 *buflen = sizeof (*ep);
3147 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3148 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3149 &session->transport.lcl_ip,
3150 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3151 clib_net_to_host_u16 (ep->port));
3157 case VPPCOM_ATTR_SET_LCL_ADDR:
3158 if (PREDICT_TRUE (buffer && buflen &&
3159 (*buflen >= sizeof (*ep)) && ep->ip))
3161 session->transport.is_ip4 = ep->is_ip4;
3162 session->transport.lcl_port = ep->port;
3163 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3164 *buflen = sizeof (*ep);
3165 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3166 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3167 &session->transport.lcl_ip,
3168 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3169 clib_net_to_host_u16 (ep->port));
3175 case VPPCOM_ATTR_GET_LIBC_EPFD:
3176 rv = session->libc_epfd;
3177 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3180 case VPPCOM_ATTR_SET_LIBC_EPFD:
3181 if (PREDICT_TRUE (buffer && buflen &&
3182 (*buflen == sizeof (session->libc_epfd))))
3184 session->libc_epfd = *(int *) buffer;
3185 *buflen = sizeof (session->libc_epfd);
3187 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3188 session->libc_epfd, *buflen);
3194 case VPPCOM_ATTR_GET_PROTOCOL:
3195 if (buffer && buflen && (*buflen >= sizeof (int)))
3197 *(int *) buffer = session->session_type;
3198 *buflen = sizeof (int);
3200 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3201 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3207 case VPPCOM_ATTR_GET_LISTEN:
3208 if (buffer && buflen && (*buflen >= sizeof (int)))
3210 *(int *) buffer = vcl_session_has_attr (session,
3211 VCL_SESS_ATTR_LISTEN);
3212 *buflen = sizeof (int);
3214 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3221 case VPPCOM_ATTR_GET_ERROR:
3222 if (buffer && buflen && (*buflen >= sizeof (int)))
3224 *(int *) buffer = 0;
3225 *buflen = sizeof (int);
3227 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3228 *(int *) buffer, *buflen);
3234 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3235 if (buffer && buflen && (*buflen >= sizeof (u32)))
3239 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3241 svm_fifo_size (session->tx_fifo) :
3242 vcm->cfg.tx_fifo_size);
3243 *buflen = sizeof (u32);
3245 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3246 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3253 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3254 if (buffer && buflen && (*buflen == sizeof (u32)))
3257 session->sndbuf_size = *(u32 *) buffer;
3258 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3259 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3266 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3267 if (buffer && buflen && (*buflen >= sizeof (u32)))
3271 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3273 svm_fifo_size (session->rx_fifo) :
3274 vcm->cfg.rx_fifo_size);
3275 *buflen = sizeof (u32);
3277 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3278 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3284 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3285 if (buffer && buflen && (*buflen == sizeof (u32)))
3288 session->rcvbuf_size = *(u32 *) buffer;
3289 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3290 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3297 case VPPCOM_ATTR_GET_REUSEADDR:
3298 if (buffer && buflen && (*buflen >= sizeof (int)))
3301 *(int *) buffer = vcl_session_has_attr (session,
3302 VCL_SESS_ATTR_REUSEADDR);
3303 *buflen = sizeof (int);
3305 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3306 *(int *) buffer, *buflen);
3312 case VPPCOM_ATTR_SET_REUSEADDR:
3313 if (buffer && buflen && (*buflen == sizeof (int)) &&
3314 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3317 if (*(int *) buffer)
3318 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3320 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3322 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3323 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3330 case VPPCOM_ATTR_GET_REUSEPORT:
3331 if (buffer && buflen && (*buflen >= sizeof (int)))
3334 *(int *) buffer = vcl_session_has_attr (session,
3335 VCL_SESS_ATTR_REUSEPORT);
3336 *buflen = sizeof (int);
3338 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3339 *(int *) buffer, *buflen);
3345 case VPPCOM_ATTR_SET_REUSEPORT:
3346 if (buffer && buflen && (*buflen == sizeof (int)) &&
3347 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3350 if (*(int *) buffer)
3351 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3353 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3355 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3356 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3363 case VPPCOM_ATTR_GET_BROADCAST:
3364 if (buffer && buflen && (*buflen >= sizeof (int)))
3367 *(int *) buffer = vcl_session_has_attr (session,
3368 VCL_SESS_ATTR_BROADCAST);
3369 *buflen = sizeof (int);
3371 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3372 *(int *) buffer, *buflen);
3378 case VPPCOM_ATTR_SET_BROADCAST:
3379 if (buffer && buflen && (*buflen == sizeof (int)))
3382 if (*(int *) buffer)
3383 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3385 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3387 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3388 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3395 case VPPCOM_ATTR_GET_V6ONLY:
3396 if (buffer && buflen && (*buflen >= sizeof (int)))
3399 *(int *) buffer = vcl_session_has_attr (session,
3400 VCL_SESS_ATTR_V6ONLY);
3401 *buflen = sizeof (int);
3403 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3404 *(int *) buffer, *buflen);
3410 case VPPCOM_ATTR_SET_V6ONLY:
3411 if (buffer && buflen && (*buflen == sizeof (int)))
3414 if (*(int *) buffer)
3415 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3417 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3419 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3420 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3427 case VPPCOM_ATTR_GET_KEEPALIVE:
3428 if (buffer && buflen && (*buflen >= sizeof (int)))
3431 *(int *) buffer = vcl_session_has_attr (session,
3432 VCL_SESS_ATTR_KEEPALIVE);
3433 *buflen = sizeof (int);
3435 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3436 *(int *) buffer, *buflen);
3442 case VPPCOM_ATTR_SET_KEEPALIVE:
3443 if (buffer && buflen && (*buflen == sizeof (int)))
3446 if (*(int *) buffer)
3447 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3449 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3451 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3452 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3459 case VPPCOM_ATTR_GET_TCP_NODELAY:
3460 if (buffer && buflen && (*buflen >= sizeof (int)))
3463 *(int *) buffer = vcl_session_has_attr (session,
3464 VCL_SESS_ATTR_TCP_NODELAY);
3465 *buflen = sizeof (int);
3467 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3468 *(int *) buffer, *buflen);
3474 case VPPCOM_ATTR_SET_TCP_NODELAY:
3475 if (buffer && buflen && (*buflen == sizeof (int)))
3478 if (*(int *) buffer)
3479 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3481 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3483 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3484 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3491 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3492 if (buffer && buflen && (*buflen >= sizeof (int)))
3495 *(int *) buffer = vcl_session_has_attr (session,
3496 VCL_SESS_ATTR_TCP_KEEPIDLE);
3497 *buflen = sizeof (int);
3499 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3500 *(int *) buffer, *buflen);
3506 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3507 if (buffer && buflen && (*buflen == sizeof (int)))
3510 if (*(int *) buffer)
3511 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3513 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3515 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3516 vcl_session_has_attr (session,
3517 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3523 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3524 if (buffer && buflen && (*buflen >= sizeof (int)))
3527 *(int *) buffer = vcl_session_has_attr (session,
3528 VCL_SESS_ATTR_TCP_KEEPINTVL);
3529 *buflen = sizeof (int);
3531 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3532 *(int *) buffer, *buflen);
3538 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3539 if (buffer && buflen && (*buflen == sizeof (int)))
3542 if (*(int *) buffer)
3543 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3545 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3547 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3548 vcl_session_has_attr (session,
3549 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3555 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3556 if (buffer && buflen && (*buflen >= sizeof (u32)))
3559 *(u32 *) buffer = session->user_mss;
3560 *buflen = sizeof (int);
3562 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3563 *(int *) buffer, *buflen);
3569 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3570 if (buffer && buflen && (*buflen == sizeof (u32)))
3573 session->user_mss = *(u32 *) buffer;
3575 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3576 session->user_mss, *buflen);
3582 case VPPCOM_ATTR_SET_SHUT:
3583 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3584 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3585 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3586 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3589 case VPPCOM_ATTR_GET_SHUT:
3590 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3592 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3595 *(int *) buffer = SHUT_RD;
3596 else if (tmp_flags == 2)
3597 *(int *) buffer = SHUT_WR;
3598 else if (tmp_flags == 3)
3599 *(int *) buffer = SHUT_RDWR;
3600 *buflen = sizeof (int);
3603 case VPPCOM_ATTR_SET_CONNECTED:
3604 session->flags |= VCL_SESSION_F_CONNECTED;
3607 case VPPCOM_ATTR_SET_CKPAIR:
3608 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
3609 !vcl_session_has_crypto (session))
3614 session->ckpair_index = *(uint32_t *) buffer;
3617 case VPPCOM_ATTR_SET_VRF:
3618 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3623 session->vrf = *(u32 *) buffer;
3626 case VPPCOM_ATTR_GET_VRF:
3627 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3632 *(u32 *) buffer = session->vrf;
3633 *buflen = sizeof (u32);
3645 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3646 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3648 vcl_worker_t *wrk = vcl_worker_get_current ();
3649 vcl_session_t *session;
3653 rv = vppcom_session_read (session_handle, buffer, buflen);
3654 else if (flags & MSG_PEEK)
3655 rv = vppcom_session_peek (session_handle, buffer, buflen);
3658 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3659 return VPPCOM_EAFNOSUPPORT;
3664 session = vcl_session_get_w_handle (wrk, session_handle);
3665 if (session->transport.is_ip4)
3666 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3667 sizeof (ip4_address_t));
3669 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3670 sizeof (ip6_address_t));
3671 ep->is_ip4 = session->transport.is_ip4;
3672 ep->port = session->transport.rmt_port;
3679 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3680 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3682 vcl_worker_t *wrk = vcl_worker_get_current ();
3685 s = vcl_session_get_w_handle (wrk, session_handle);
3687 return VPPCOM_EBADFD;
3690 return VPPCOM_EINVAL;
3694 if (!vcl_session_is_cl (s))
3695 return VPPCOM_EINVAL;
3697 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3698 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3700 u32 session_index = s->session_index;
3701 f64 timeout = vcm->cfg.session_timeout;
3704 vcl_send_session_connect (wrk, s);
3705 rv = vppcom_wait_for_session_state_change (session_index,
3710 s = vcl_session_get (wrk, session_index);
3713 s->transport.is_ip4 = ep->is_ip4;
3714 s->transport.rmt_port = ep->port;
3715 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3720 // TBD check the flags and do the right thing
3721 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3724 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3725 s->is_dgram ? 1 : 0));
3729 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3731 vcl_worker_t *wrk = vcl_worker_get_current ();
3732 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3733 u32 i, keep_trying = 1;
3734 svm_msg_q_msg_t msg;
3738 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3741 return VPPCOM_EFAULT;
3745 vcl_session_t *session;
3747 /* Dequeue all events and drop all unhandled io events */
3748 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3750 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3751 vcl_handle_mq_event (wrk, e);
3752 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3754 vec_reset_length (wrk->unhandled_evts_vector);
3756 for (i = 0; i < n_sids; i++)
3758 session = vcl_session_get (wrk, vp[i].sh);
3761 vp[i].revents = POLLHUP;
3768 if (POLLIN & vp[i].events)
3770 rv = vcl_session_read_ready (session);
3773 vp[i].revents |= POLLIN;
3780 case VPPCOM_ECONNRESET:
3781 vp[i].revents = POLLHUP;
3785 vp[i].revents = POLLERR;
3792 if (POLLOUT & vp[i].events)
3794 rv = vcl_session_write_ready (session);
3797 vp[i].revents |= POLLOUT;
3804 case VPPCOM_ECONNRESET:
3805 vp[i].revents = POLLHUP;
3809 vp[i].revents = POLLERR;
3816 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3818 vp[i].revents = POLLNVAL;
3822 if (wait_for_time != -1)
3823 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3825 while ((num_ev == 0) && keep_trying);
3831 vppcom_mq_epoll_fd (void)
3833 vcl_worker_t *wrk = vcl_worker_get_current ();
3834 return wrk->mqs_epfd;
3838 vppcom_session_index (vcl_session_handle_t session_handle)
3840 return session_handle & 0xFFFFFF;
3844 vppcom_session_worker (vcl_session_handle_t session_handle)
3846 return session_handle >> 24;
3850 vppcom_worker_register (void)
3852 if (!vcl_worker_alloc_and_init ())
3853 return VPPCOM_EEXIST;
3855 if (vcl_worker_register_with_vpp ())
3856 return VPPCOM_EEXIST;
3862 vppcom_worker_unregister (void)
3864 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3865 vcl_set_worker_index (~0);
3869 vppcom_worker_index_set (int index)
3871 vcl_set_worker_index (index);
3875 vppcom_worker_index (void)
3877 return vcl_get_worker_index ();
3881 vppcom_worker_mqs_epfd (void)
3883 vcl_worker_t *wrk = vcl_worker_get_current ();
3884 if (!vcm->cfg.use_mq_eventfd)
3886 return wrk->mqs_epfd;
3890 vppcom_session_is_connectable_listener (uint32_t session_handle)
3892 vcl_session_t *session;
3893 vcl_worker_t *wrk = vcl_worker_get_current ();
3894 session = vcl_session_get_w_handle (wrk, session_handle);
3896 return VPPCOM_EBADFD;
3897 return vcl_session_is_connectable_listener (wrk, session);
3901 vppcom_session_listener (uint32_t session_handle)
3903 vcl_worker_t *wrk = vcl_worker_get_current ();
3904 vcl_session_t *listen_session, *session;
3905 session = vcl_session_get_w_handle (wrk, session_handle);
3907 return VPPCOM_EBADFD;
3908 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3909 return VPPCOM_EBADFD;
3910 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3911 if (!listen_session)
3912 return VPPCOM_EBADFD;
3913 return vcl_session_handle (listen_session);
3917 vppcom_session_n_accepted (uint32_t session_handle)
3919 vcl_worker_t *wrk = vcl_worker_get_current ();
3920 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3922 return VPPCOM_EBADFD;
3923 return session->n_accepted_sessions;
3927 vppcom_proto_str (vppcom_proto_t proto)
3929 char const *proto_str;
3933 case VPPCOM_PROTO_TCP:
3936 case VPPCOM_PROTO_UDP:
3939 case VPPCOM_PROTO_TLS:
3942 case VPPCOM_PROTO_QUIC:
3945 case VPPCOM_PROTO_DTLS:
3949 proto_str = "UNKNOWN";
3956 vppcom_retval_str (int retval)
3967 st = "VPPCOM_EAGAIN";
3971 st = "VPPCOM_EFAULT";
3975 st = "VPPCOM_ENOMEM";
3979 st = "VPPCOM_EINVAL";
3983 st = "VPPCOM_EBADFD";
3986 case VPPCOM_EAFNOSUPPORT:
3987 st = "VPPCOM_EAFNOSUPPORT";
3990 case VPPCOM_ECONNABORTED:
3991 st = "VPPCOM_ECONNABORTED";
3994 case VPPCOM_ECONNRESET:
3995 st = "VPPCOM_ECONNRESET";
3998 case VPPCOM_ENOTCONN:
3999 st = "VPPCOM_ENOTCONN";
4002 case VPPCOM_ECONNREFUSED:
4003 st = "VPPCOM_ECONNREFUSED";
4006 case VPPCOM_ETIMEDOUT:
4007 st = "VPPCOM_ETIMEDOUT";
4011 st = "UNKNOWN_STATE";
4019 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4021 if (vcm->cfg.vpp_app_socket_api)
4023 clib_warning ("not supported");
4024 return VPPCOM_EINVAL;
4026 return vcl_bapi_add_cert_key_pair (ckpair);
4030 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4032 if (vcm->cfg.vpp_app_socket_api)
4034 clib_warning ("not supported");
4035 return VPPCOM_EINVAL;
4037 return vcl_bapi_del_cert_key_pair (ckpair_index);
4041 * fd.io coding-style-patch-verification: ON
4044 * eval: (c-set-style "gnu")