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);
43 vcl_msg_add_ext_config (vcl_session_t *s, uword *offset)
47 c = vcl_segment_alloc_chunk (vcl_vpp_worker_segment_handle (0),
48 0 /* one slice only */, s->ext_config->len,
51 clib_memcpy_fast (c->data, s->ext_config, s->ext_config->len);
55 vcl_send_session_listen (vcl_worker_t *wrk, vcl_session_t *s)
57 app_session_evt_t _app_evt, *app_evt = &_app_evt;
58 session_listen_msg_t *mp;
61 mq = vcl_worker_ctrl_mq (wrk);
62 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
63 mp = (session_listen_msg_t *) app_evt->evt->data;
64 memset (mp, 0, sizeof (*mp));
65 mp->client_index = wrk->api_client_handle;
66 mp->context = s->session_index;
67 mp->wrk_index = wrk->vpp_wrk_index;
68 mp->is_ip4 = s->transport.is_ip4;
69 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
70 mp->port = s->transport.lcl_port;
71 mp->proto = s->session_type;
73 if (s->flags & VCL_SESSION_F_CONNECTED)
74 mp->flags = TRANSPORT_CFG_F_CONNECTED;
76 vcl_msg_add_ext_config (s, &mp->ext_config);
77 app_send_ctrl_evt_to_vpp (mq, app_evt);
80 clib_mem_free (s->ext_config);
83 s->flags |= VCL_SESSION_F_PENDING_LISTEN;
87 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
89 app_session_evt_t _app_evt, *app_evt = &_app_evt;
90 session_connect_msg_t *mp;
93 mq = vcl_worker_ctrl_mq (wrk);
94 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
95 mp = (session_connect_msg_t *) app_evt->evt->data;
96 memset (mp, 0, sizeof (*mp));
97 mp->client_index = wrk->api_client_handle;
98 mp->context = s->session_index;
100 mp->wrk_index = wrk->vpp_wrk_index;
101 mp->is_ip4 = s->transport.is_ip4;
102 mp->parent_handle = s->parent_handle;
103 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
104 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
105 mp->port = s->transport.rmt_port;
106 mp->lcl_port = s->transport.lcl_port;
107 mp->proto = s->session_type;
109 if (s->flags & VCL_SESSION_F_CONNECTED)
110 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
112 vcl_msg_add_ext_config (s, &mp->ext_config);
113 app_send_ctrl_evt_to_vpp (mq, app_evt);
117 clib_mem_free (s->ext_config);
123 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
125 app_session_evt_t _app_evt, *app_evt = &_app_evt;
126 session_unlisten_msg_t *mp;
129 mq = vcl_worker_ctrl_mq (wrk);
130 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
131 mp = (session_unlisten_msg_t *) app_evt->evt->data;
132 memset (mp, 0, sizeof (*mp));
133 mp->client_index = wrk->api_client_handle;
134 mp->wrk_index = wrk->vpp_wrk_index;
135 mp->handle = s->vpp_handle;
136 mp->context = wrk->wrk_index;
137 app_send_ctrl_evt_to_vpp (mq, app_evt);
141 vcl_send_session_shutdown (vcl_worker_t *wrk, vcl_session_t *s)
143 app_session_evt_t _app_evt, *app_evt = &_app_evt;
144 session_shutdown_msg_t *mp;
147 /* Send to thread that owns the session */
149 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_SHUTDOWN);
150 mp = (session_shutdown_msg_t *) app_evt->evt->data;
151 memset (mp, 0, sizeof (*mp));
152 mp->client_index = wrk->api_client_handle;
153 mp->handle = s->vpp_handle;
154 app_send_ctrl_evt_to_vpp (mq, app_evt);
158 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
160 app_session_evt_t _app_evt, *app_evt = &_app_evt;
161 session_disconnect_msg_t *mp;
164 /* Send to thread that owns the session */
166 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
167 mp = (session_disconnect_msg_t *) app_evt->evt->data;
168 memset (mp, 0, sizeof (*mp));
169 mp->client_index = wrk->api_client_handle;
170 mp->handle = s->vpp_handle;
171 app_send_ctrl_evt_to_vpp (mq, app_evt);
175 vcl_send_app_detach (vcl_worker_t * wrk)
177 app_session_evt_t _app_evt, *app_evt = &_app_evt;
178 session_app_detach_msg_t *mp;
181 mq = vcl_worker_ctrl_mq (wrk);
182 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
183 mp = (session_app_detach_msg_t *) app_evt->evt->data;
184 memset (mp, 0, sizeof (*mp));
185 mp->client_index = wrk->api_client_handle;
186 app_send_ctrl_evt_to_vpp (mq, app_evt);
190 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
191 session_handle_t handle, int retval)
193 app_session_evt_t _app_evt, *app_evt = &_app_evt;
194 session_accepted_reply_msg_t *rmp;
195 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
196 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
197 rmp->handle = handle;
198 rmp->context = context;
199 rmp->retval = retval;
200 app_send_ctrl_evt_to_vpp (mq, app_evt);
204 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
207 app_session_evt_t _app_evt, *app_evt = &_app_evt;
208 session_disconnected_reply_msg_t *rmp;
209 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
210 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
211 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
212 rmp->handle = s->vpp_handle;
213 rmp->context = wrk->api_client_handle;
214 rmp->retval = retval;
215 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
219 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
222 app_session_evt_t _app_evt, *app_evt = &_app_evt;
223 session_reset_reply_msg_t *rmp;
224 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
225 SESSION_CTRL_EVT_RESET_REPLY);
226 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
227 rmp->handle = s->vpp_handle;
228 rmp->context = wrk->api_client_handle;
229 rmp->retval = retval;
230 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
234 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
237 app_session_evt_t _app_evt, *app_evt = &_app_evt;
238 session_worker_update_msg_t *mp;
240 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
241 SESSION_CTRL_EVT_WORKER_UPDATE);
242 mp = (session_worker_update_msg_t *) app_evt->evt->data;
243 mp->client_index = wrk->api_client_handle;
244 mp->handle = s->vpp_handle;
245 mp->req_wrk_index = wrk->vpp_wrk_index;
246 mp->wrk_index = wrk_index;
247 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
251 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
253 app_session_evt_t _app_evt, *app_evt = &_app_evt;
254 session_app_wrk_rpc_msg_t *mp;
255 vcl_worker_t *dst_wrk, *wrk;
259 if (data_len > sizeof (mp->data))
262 clib_spinlock_lock (&vcm->workers_lock);
264 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
268 wrk = vcl_worker_get_current ();
269 mq = vcl_worker_ctrl_mq (wrk);
270 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
271 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
272 mp->client_index = wrk->api_client_handle;
273 mp->wrk_index = dst_wrk->vpp_wrk_index;
274 clib_memcpy (mp->data, data, data_len);
275 app_send_ctrl_evt_to_vpp (mq, app_evt);
279 clib_spinlock_unlock (&vcm->workers_lock);
284 vcl_session_transport_attr (vcl_worker_t *wrk, vcl_session_t *s, u8 is_get,
285 transport_endpt_attr_t *attr)
287 app_session_evt_t _app_evt, *app_evt = &_app_evt;
288 session_transport_attr_msg_t *mp;
292 ASSERT (!wrk->session_attr_op);
294 if (PREDICT_FALSE (!mq))
296 /* FIXME: attribute should be stored and sent once session is
297 * bound/connected to vpp */
301 wrk->session_attr_op = 1;
302 wrk->session_attr_op_rv = -1;
304 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_TRANSPORT_ATTR);
305 mp = (session_transport_attr_msg_t *) app_evt->evt->data;
306 memset (mp, 0, sizeof (*mp));
307 mp->client_index = wrk->api_client_handle;
308 mp->handle = s->vpp_handle;
311 app_send_ctrl_evt_to_vpp (mq, app_evt);
313 timeout = clib_time_now (&wrk->clib_time) + 1;
315 while (wrk->session_attr_op && clib_time_now (&wrk->clib_time) < timeout)
316 vcl_flush_mq_events ();
318 if (!wrk->session_attr_op_rv && is_get)
319 *attr = wrk->session_attr_rv;
321 wrk->session_attr_op = 0;
323 return wrk->session_attr_op_rv;
327 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
330 vcl_session_t *session, *listen_session;
333 session = vcl_session_alloc (wrk);
335 listen_session = vcl_session_get (wrk, ls_index);
336 if (listen_session->vpp_handle != mp->listener_handle)
338 VDBG (0, "ERROR: listener handle %lu does not match session %u",
339 mp->listener_handle, ls_index);
343 if (vcl_segment_attach_session (
344 mp->segment_handle, mp->server_rx_fifo, mp->server_tx_fifo,
345 mp->vpp_event_queue_address, mp->mq_index, 0, session))
347 VDBG (0, "session %u [0x%llx]: failed to attach fifos",
348 session->session_index, mp->handle);
352 session->vpp_handle = mp->handle;
353 session->session_state = VCL_STATE_READY;
354 session->transport.rmt_port = mp->rmt.port;
355 session->transport.is_ip4 = mp->rmt.is_ip4;
356 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
357 sizeof (ip46_address_t));
359 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
360 session->transport.lcl_port = mp->lcl.port;
361 session->transport.lcl_ip = mp->lcl.ip;
362 session->session_type = listen_session->session_type;
363 session->is_dgram = vcl_proto_is_dgram (session->session_type);
364 if (session->is_dgram)
365 session->flags |= (listen_session->flags & VCL_SESSION_F_CONNECTED);
366 session->listener_index = listen_session->session_index;
367 listen_session->n_accepted_sessions++;
369 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
371 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
372 session->vpp_handle, 0);
374 return session->session_index;
377 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
378 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
379 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
380 VNET_API_ERROR_INVALID_ARGUMENT);
381 vcl_session_free (wrk, session);
382 return VCL_INVALID_SESSION_INDEX;
386 vcl_session_connected_handler (vcl_worker_t * wrk,
387 session_connected_msg_t * mp)
389 vcl_session_t *session = 0;
392 session_index = mp->context;
393 session = vcl_session_get (wrk, session_index);
394 if (PREDICT_FALSE (!session))
396 VERR ("vpp handle 0x%llx has no session index (%u)!", mp->handle,
398 /* Should not happen but if it does, force vpp session cleanup */
399 vcl_session_t tmp_session = {
400 .vpp_handle = mp->handle,
403 vcl_segment_attach_session (
404 mp->segment_handle, mp->server_rx_fifo, mp->server_tx_fifo,
405 mp->vpp_event_queue_address, mp->mq_index, 0, session);
406 if (tmp_session.vpp_evt_q)
407 vcl_send_session_disconnect (wrk, &tmp_session);
408 return VCL_INVALID_SESSION_INDEX;
413 VDBG (0, "session %u: connect failed! %U", session_index,
414 format_session_error, mp->retval);
415 session->session_state = VCL_STATE_DETACHED;
416 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
417 session->vpp_error = mp->retval;
418 return session_index;
421 session->vpp_handle = mp->handle;
423 /* Add to lookup table. Even if something fails, session cannot be
424 * cleaned up prior to notifying vpp and going through the cleanup
425 * "procedure" see @ref vcl_session_cleanup_handler */
426 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
428 if (vcl_segment_attach_session (
429 mp->segment_handle, mp->server_rx_fifo, mp->server_tx_fifo,
430 mp->vpp_event_queue_address, mp->mq_index, 0, session))
432 VDBG (0, "session %u [0x%llx]: failed to attach fifos",
433 session->session_index, session->vpp_handle);
434 session->session_state = VCL_STATE_UPDATED;
435 vcl_send_session_disconnect (wrk, session);
436 return session_index;
441 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
442 mp->ct_tx_fifo, (uword) ~0, ~0, 1,
445 VDBG (0, "session %u [0x%llx]: failed to attach ct fifos",
446 session->session_index, session->vpp_handle);
447 session->session_state = VCL_STATE_UPDATED;
448 vcl_send_session_disconnect (wrk, session);
449 return session_index;
453 session->transport.is_ip4 = mp->lcl.is_ip4;
454 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
455 sizeof (session->transport.lcl_ip));
456 session->transport.lcl_port = mp->lcl.port;
458 /* Application closed session before connect reply */
459 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
460 && session->session_state == VCL_STATE_CLOSED)
461 vcl_send_session_disconnect (wrk, session);
463 session->session_state = VCL_STATE_READY;
465 VDBG (0, "session %u [0x%llx] connected local: %U:%u remote %U:%u",
466 session->session_index, session->vpp_handle, vcl_format_ip46_address,
467 &session->transport.lcl_ip,
468 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
469 clib_net_to_host_u16 (session->transport.lcl_port),
470 vcl_format_ip46_address, &session->transport.rmt_ip,
471 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
472 clib_net_to_host_u16 (session->transport.rmt_port));
474 return session_index;
478 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
480 vcl_session_msg_t *accepted_msg;
483 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
485 accepted_msg = &session->accept_evts_fifo[i];
486 if (accepted_msg->accepted_msg.handle == handle)
488 accepted_msg->flags |= flags;
496 vcl_session_reset_handler (vcl_worker_t * wrk,
497 session_reset_msg_t * reset_msg)
499 vcl_session_t *session;
502 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
503 session = vcl_session_get (wrk, sid);
506 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
507 return VCL_INVALID_SESSION_INDEX;
510 /* Caught a reset before actually accepting the session */
511 if (session->session_state == VCL_STATE_LISTEN)
514 if (!vcl_flag_accepted_session (session, reset_msg->handle,
515 VCL_ACCEPTED_F_RESET))
516 VDBG (0, "session was not accepted!");
517 return VCL_INVALID_SESSION_INDEX;
520 if (session->session_state != VCL_STATE_CLOSED)
521 session->session_state = VCL_STATE_DISCONNECT;
523 session->flags |= (VCL_SESSION_F_RD_SHUTDOWN | VCL_SESSION_F_WR_SHUTDOWN);
524 VDBG (0, "session %u [0x%llx]: reset", sid, reset_msg->handle);
529 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
531 vcl_session_t *session;
532 u32 sid = mp->context;
534 session = vcl_session_get (wrk, sid);
537 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
538 format_session_error, mp->retval);
541 session->session_state = VCL_STATE_DETACHED;
542 session->vpp_handle = mp->handle;
547 VDBG (0, "session %u [0x%llx]: Invalid session index!", sid,
549 return VCL_INVALID_SESSION_INDEX;
553 session->vpp_handle = mp->handle;
554 session->transport.is_ip4 = mp->lcl_is_ip4;
555 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
556 sizeof (ip46_address_t));
557 session->transport.lcl_port = mp->lcl_port;
558 vcl_session_table_add_listener (wrk, mp->handle, sid);
559 session->session_state = VCL_STATE_LISTEN;
560 session->flags &= ~VCL_SESSION_F_PENDING_LISTEN;
562 if (vcl_session_is_cl (session))
564 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
565 mp->tx_fifo, mp->vpp_evt_q, mp->mq_index,
568 VDBG (0, "session %u [0x%llx]: failed to attach fifos",
569 session->session_index, session->vpp_handle);
570 session->session_state = VCL_STATE_DETACHED;
571 return VCL_INVALID_SESSION_INDEX;
575 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
580 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
582 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
585 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
588 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
591 if (s->session_state != VCL_STATE_DISCONNECT)
593 /* Connected udp listener */
594 if (s->session_type == VPPCOM_PROTO_UDP
595 && s->session_state == VCL_STATE_CLOSED)
598 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
603 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
604 s->session_index, mp->handle, format_session_error, mp->retval);
606 if (mp->context != wrk->wrk_index)
607 VDBG (0, "wrong context");
609 vcl_session_table_del_vpp_handle (wrk, mp->handle);
610 vcl_session_free (wrk, s);
614 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
616 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
620 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
623 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
627 /* Only validate if a value is provided */
628 if (mp->segment_handle != SESSION_INVALID_HANDLE)
630 fs_index = vcl_segment_table_lookup (mp->segment_handle);
631 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
633 VDBG (0, "segment %lx for session %u is not mounted!",
634 mp->segment_handle, s->session_index);
635 s->session_state = VCL_STATE_DETACHED;
640 s->vpp_handle = mp->new_handle;
642 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
643 mp->vpp_thread_index, &s->vpp_evt_q);
645 vcl_session_table_del_vpp_handle (wrk, mp->handle);
646 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
648 /* Generate new tx event if we have outstanding data */
649 if (svm_fifo_has_event (s->tx_fifo))
650 app_send_io_evt_to_vpp (s->vpp_evt_q,
651 s->tx_fifo->shr->master_session_index,
652 SESSION_IO_EVT_TX, SVM_Q_WAIT);
654 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
655 mp->vpp_thread_index, mp->new_handle);
658 static vcl_session_t *
659 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
661 vcl_session_msg_t *vcl_msg;
662 vcl_session_t *session;
664 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
665 if (PREDICT_FALSE (session != 0))
666 VWRN ("session overlap handle %lu state %u!", msg->handle,
667 session->session_state);
669 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
672 VERR ("couldn't find listen session: listener handle %llx",
673 msg->listener_handle);
677 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
679 vcl_msg->accepted_msg = *msg;
680 /* Session handle points to listener until fully accepted by app */
681 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
686 static vcl_session_t *
687 vcl_session_disconnected_handler (vcl_worker_t * wrk,
688 session_disconnected_msg_t * msg)
690 vcl_session_t *session;
692 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
695 VWRN ("request to disconnect unknown handle 0x%llx", msg->handle);
699 /* Late disconnect notification on a session that has been closed */
700 if (session->session_state == VCL_STATE_CLOSED)
703 /* Caught a disconnect before actually accepting the session */
704 if (session->session_state == VCL_STATE_LISTEN)
706 if (!vcl_flag_accepted_session (session, msg->handle,
707 VCL_ACCEPTED_F_CLOSED))
708 VDBG (0, "session was not accepted!");
712 /* If not already reset change state */
713 if (session->session_state != VCL_STATE_DISCONNECT)
714 session->session_state = VCL_STATE_VPP_CLOSING;
720 vppcom_session_shutdown (uint32_t session_handle, int how)
722 vcl_worker_t *wrk = vcl_worker_get_current ();
723 vcl_session_t *session;
724 vcl_session_state_t state;
727 session = vcl_session_get_w_handle (wrk, session_handle);
728 if (PREDICT_FALSE (!session))
729 return VPPCOM_EBADFD;
731 vpp_handle = session->vpp_handle;
732 state = session->session_state;
734 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
735 vpp_handle, state, vcl_session_state_str (state));
737 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
739 VDBG (0, "ERROR: Cannot shutdown a listen socket!");
740 return VPPCOM_EBADFD;
743 if (how == SHUT_RD || how == SHUT_RDWR)
745 session->flags |= VCL_SESSION_F_RD_SHUTDOWN;
749 session->flags |= VCL_SESSION_F_WR_SHUTDOWN;
751 if (PREDICT_TRUE (state == VCL_STATE_READY))
753 VDBG (1, "session %u [0x%llx]: sending shutdown...",
754 session->session_index, vpp_handle);
756 vcl_send_session_shutdown (wrk, session);
763 vppcom_session_disconnect (u32 session_handle)
765 vcl_worker_t *wrk = vcl_worker_get_current ();
766 vcl_session_t *session, *listen_session;
767 vcl_session_state_t state;
770 session = vcl_session_get_w_handle (wrk, session_handle);
772 return VPPCOM_EBADFD;
774 vpp_handle = session->vpp_handle;
775 state = session->session_state;
777 VDBG (1, "session %u [0x%llx]: disconnecting state (%s)",
778 session->session_index, vpp_handle, vcl_session_state_str (state));
780 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
782 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
783 return VPPCOM_EBADFD;
786 if (state == VCL_STATE_VPP_CLOSING)
788 vcl_send_session_disconnected_reply (wrk, session, 0);
789 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
790 session->session_index, vpp_handle);
794 /* Session doesn't have an event queue yet. Probably a non-blocking
795 * connect. Wait for the reply */
796 if (PREDICT_FALSE (!session->vpp_evt_q))
799 VDBG (1, "session %u [0x%llx]: sending disconnect",
800 session->session_index, vpp_handle);
801 vcl_send_session_disconnect (wrk, session);
804 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
806 listen_session = vcl_session_get (wrk, session->listener_index);
808 listen_session->n_accepted_sessions--;
815 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
817 session_cleanup_msg_t *msg;
818 vcl_session_t *session;
820 msg = (session_cleanup_msg_t *) data;
821 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
824 VWRN ("disconnect confirmed for unknown handle 0x%llx", msg->handle);
828 if (msg->type == SESSION_CLEANUP_TRANSPORT)
830 /* Transport was cleaned up before we confirmed close. Probably the
831 * app is still waiting for some data that cannot be delivered.
832 * Confirm close to make sure everything is cleaned up.
833 * Move to undetermined state to ensure that the session is not
834 * removed before both vpp and the app cleanup.
835 * - If the app closes first, the session is moved to CLOSED state
836 * and the session cleanup notification from vpp removes the
838 * - If vpp cleans up the session first, the session is moved to
839 * DETACHED state lower and subsequently the close from the app
842 if (session->session_state == VCL_STATE_VPP_CLOSING)
844 vppcom_session_disconnect (vcl_session_handle (session));
845 session->session_state = VCL_STATE_UPDATED;
847 else if (session->session_state == VCL_STATE_DISCONNECT)
849 vcl_send_session_reset_reply (wrk, session, 0);
850 session->session_state = VCL_STATE_UPDATED;
855 /* VPP will reuse the handle so clean it up now */
856 vcl_session_table_del_vpp_handle (wrk, msg->handle);
858 /* App did not close the connection yet so don't free it. */
859 if (session->session_state != VCL_STATE_CLOSED)
861 VDBG (0, "session %u: app did not close", session->session_index);
862 session->session_state = VCL_STATE_DETACHED;
863 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
867 /* Session probably tracked with epoll, disconnect not yet handled and
868 * 1) both transport and session cleanup completed 2) app closed. Wait
869 * until message is drained to free the session.
870 * See @ref vcl_handle_mq_event */
871 if (session->flags & VCL_SESSION_F_PENDING_DISCONNECT)
873 session->flags |= VCL_SESSION_F_PENDING_FREE;
877 vcl_session_free (wrk, session);
881 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
883 session_req_worker_update_msg_t *msg;
886 msg = (session_req_worker_update_msg_t *) data;
887 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
891 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
895 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
897 session_worker_update_reply_msg_t *msg;
900 msg = (session_worker_update_reply_msg_t *) data;
901 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
904 VDBG (0, "unknown handle 0x%llx", msg->handle);
910 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
911 msg->tx_fifo, (uword) ~0, ~0, 0, s))
913 VDBG (0, "failed to attach fifos for %u", s->session_index);
917 s->session_state = VCL_STATE_UPDATED;
919 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
920 s->vpp_handle, wrk->wrk_index);
924 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
927 if (vcm->cfg.vpp_app_socket_api)
928 return vcl_sapi_recv_fds (wrk, fds, n_fds);
930 return vcl_bapi_recv_fds (wrk, fds, n_fds);
934 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
936 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
937 session_app_add_segment_msg_t *msg;
941 msg = (session_app_add_segment_msg_t *) data;
945 vcl_api_recv_fd (wrk, &fd, 1);
946 seg_type = SSVM_SEGMENT_MEMFD;
949 segment_handle = msg->segment_handle;
950 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
952 clib_warning ("invalid segment handle");
956 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
959 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
963 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
968 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
970 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
971 vcl_segment_detach (msg->segment_handle);
972 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
976 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
978 if (!vcm->wrk_rpc_fn)
981 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
985 vcl_session_transport_attr_reply_handler (vcl_worker_t *wrk, void *data)
987 session_transport_attr_reply_msg_t *mp;
989 if (!wrk->session_attr_op)
992 mp = (session_transport_attr_reply_msg_t *) data;
994 wrk->session_attr_op_rv = mp->retval;
995 wrk->session_attr_op = 0;
996 wrk->session_attr_rv = mp->attr;
1000 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
1002 session_disconnected_msg_t *disconnected_msg;
1003 session_connected_msg_t *connected_msg;
1004 session_reset_msg_t *reset_msg;
1005 session_event_t *ecpy;
1009 switch (e->event_type)
1011 case SESSION_IO_EVT_RX:
1012 case SESSION_IO_EVT_TX:
1013 s = vcl_session_get (wrk, e->session_index);
1014 if (!s || !vcl_session_is_open (s))
1016 vec_add1 (wrk->unhandled_evts_vector, *e);
1018 case SESSION_CTRL_EVT_BOUND:
1019 /* We can only wait for only one listen so not postponed */
1020 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1022 case SESSION_CTRL_EVT_ACCEPTED:
1023 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1024 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1026 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1028 ecpy->postponed = 1;
1029 ecpy->session_index = s->session_index;
1032 case SESSION_CTRL_EVT_CONNECTED:
1033 connected_msg = (session_connected_msg_t *) e->data;
1034 sid = vcl_session_connected_handler (wrk, connected_msg);
1035 if (!(s = vcl_session_get (wrk, sid)))
1037 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1039 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1041 ecpy->postponed = 1;
1042 ecpy->session_index = s->session_index;
1045 case SESSION_CTRL_EVT_DISCONNECTED:
1046 disconnected_msg = (session_disconnected_msg_t *) e->data;
1047 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1049 if (s->session_state == VCL_STATE_CLOSED)
1051 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1053 s->session_state = VCL_STATE_VPP_CLOSING;
1054 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1055 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1057 ecpy->postponed = 1;
1058 ecpy->session_index = s->session_index;
1061 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1063 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1066 case SESSION_CTRL_EVT_RESET:
1067 reset_msg = (session_reset_msg_t *) e->data;
1068 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1070 if (s->session_state == VCL_STATE_CLOSED)
1072 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1074 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1075 s->session_state = VCL_STATE_DISCONNECT;
1076 s->flags |= (VCL_SESSION_F_RD_SHUTDOWN | VCL_SESSION_F_WR_SHUTDOWN);
1077 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1079 ecpy->postponed = 1;
1080 ecpy->session_index = s->session_index;
1083 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1085 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1086 vcl_session_unlisten_reply_handler (wrk, e->data);
1088 case SESSION_CTRL_EVT_MIGRATED:
1089 vcl_session_migrated_handler (wrk, e->data);
1091 case SESSION_CTRL_EVT_CLEANUP:
1092 vcl_session_cleanup_handler (wrk, e->data);
1094 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1095 vcl_session_req_worker_update_handler (wrk, e->data);
1097 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1098 vcl_session_worker_update_reply_handler (wrk, e->data);
1100 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1101 vcl_session_app_add_segment_handler (wrk, e->data);
1103 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1104 vcl_session_app_del_segment_handler (wrk, e->data);
1106 case SESSION_CTRL_EVT_APP_WRK_RPC:
1107 vcl_worker_rpc_handler (wrk, e->data);
1109 case SESSION_CTRL_EVT_TRANSPORT_ATTR_REPLY:
1110 vcl_session_transport_attr_reply_handler (wrk, e->data);
1113 clib_warning ("unhandled %u", e->event_type);
1119 vppcom_wait_for_session_state_change (u32 session_index,
1120 vcl_session_state_t state,
1123 vcl_worker_t *wrk = vcl_worker_get_current ();
1124 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1125 vcl_session_t *volatile session;
1126 svm_msg_q_msg_t msg;
1131 session = vcl_session_get (wrk, session_index);
1132 if (PREDICT_FALSE (!session))
1134 return VPPCOM_EBADFD;
1136 if (session->session_state == state)
1140 if (session->session_state == VCL_STATE_DETACHED)
1142 return VPPCOM_ECONNREFUSED;
1145 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1150 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1151 vcl_handle_mq_event (wrk, e);
1152 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1154 while (clib_time_now (&wrk->clib_time) < timeout);
1156 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1157 vcl_session_state_str (state));
1158 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1160 return VPPCOM_ETIMEDOUT;
1164 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1166 vcl_session_state_t state;
1170 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1173 vec_foreach (sip, wrk->pending_session_wrk_updates)
1175 s = vcl_session_get (wrk, *sip);
1176 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1177 state = s->session_state;
1178 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1180 s->session_state = state;
1182 vec_reset_length (wrk->pending_session_wrk_updates);
1186 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1188 svm_msg_q_msg_t *msg;
1193 mq = wrk->app_event_queue;
1194 vcl_mq_dequeue_batch (wrk, mq, ~0);
1196 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1198 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1199 e = svm_msg_q_msg_data (mq, msg);
1200 vcl_handle_mq_event (wrk, e);
1201 svm_msg_q_free_msg (mq, msg);
1203 vec_reset_length (wrk->mq_msg_vector);
1204 vcl_handle_pending_wrk_updates (wrk);
1208 vcl_flush_mq_events (void)
1210 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1214 vppcom_session_unbind (u32 session_handle)
1216 vcl_worker_t *wrk = vcl_worker_get_current ();
1217 session_accepted_msg_t *accepted_msg;
1218 vcl_session_t *session = 0;
1219 vcl_session_msg_t *evt;
1221 session = vcl_session_get_w_handle (wrk, session_handle);
1223 return VPPCOM_EBADFD;
1225 /* Flush pending accept events, if any */
1226 while (clib_fifo_elts (session->accept_evts_fifo))
1228 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1229 accepted_msg = &evt->accepted_msg;
1230 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1231 vcl_send_session_accepted_reply (session->vpp_evt_q,
1232 accepted_msg->context,
1233 accepted_msg->handle, -1);
1235 clib_fifo_free (session->accept_evts_fifo);
1237 vcl_send_session_unlisten (wrk, session);
1239 VDBG (0, "session %u [0x%llx]: sending unbind!", session->session_index,
1240 session->vpp_handle);
1241 vcl_evt (VCL_EVT_UNBIND, session);
1243 session->vpp_handle = ~0;
1244 session->session_state = VCL_STATE_DISCONNECT;
1252 * Notify vpp of the disconnect and mark the worker as free. If we're the
1253 * last worker, do a full cleanup otherwise, since we're probably a forked
1254 * child, avoid syscalls as much as possible. We might've lost privileges.
1257 vppcom_app_exit (void)
1259 if (!pool_elts (vcm->workers))
1261 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1262 vcl_set_worker_index (~0);
1263 vcl_elog_stop (vcm);
1267 vcl_api_attach (void)
1269 if (vcm->cfg.vpp_app_socket_api)
1270 return vcl_sapi_attach ();
1272 return vcl_bapi_attach ();
1276 vcl_is_first_reattach_to_execute ()
1278 if (vcm->reattach_count == 0)
1285 vcl_set_reattach_counter ()
1287 ++vcm->reattach_count;
1289 if (vcm->reattach_count == vec_len (vcm->workers))
1290 vcm->reattach_count = 0;
1294 * Reattach vcl to vpp after it has previously been disconnected.
1296 * The logic should be:
1297 * - first worker to hit `vcl_api_retry_attach` should attach to vpp,
1298 * to reproduce the `vcl_api_attach` in `vppcom_app_create`.
1299 * - the rest of the workers should `reproduce vcl_worker_register_with_vpp`
1300 * from `vppcom_worker_register` since they were already allocated.
1304 vcl_api_retry_attach (vcl_worker_t *wrk)
1308 clib_spinlock_lock (&vcm->workers_lock);
1309 if (vcl_is_first_reattach_to_execute ())
1311 if (vcl_api_attach ())
1313 clib_spinlock_unlock (&vcm->workers_lock);
1316 vcl_set_reattach_counter ();
1317 clib_spinlock_unlock (&vcm->workers_lock);
1321 vcl_set_reattach_counter ();
1322 clib_spinlock_unlock (&vcm->workers_lock);
1323 vcl_worker_register_with_vpp ();
1326 /* Treat listeners as configuration that needs to be re-added to vpp */
1327 pool_foreach (s, wrk->sessions)
1329 if (s->flags & VCL_SESSION_F_IS_VEP)
1331 if (s->session_state == VCL_STATE_LISTEN_NO_MQ)
1332 vppcom_session_listen (vcl_session_handle (s), 10);
1334 VDBG (0, "internal error: unexpected state %d", s->session_state);
1339 vcl_api_handle_disconnect (vcl_worker_t *wrk)
1341 wrk->api_client_handle = ~0;
1342 vcl_worker_detach_sessions (wrk);
1346 vcl_api_detach (vcl_worker_t * wrk)
1348 if (wrk->api_client_handle == ~0)
1351 vcl_send_app_detach (wrk);
1353 if (vcm->cfg.vpp_app_socket_api)
1354 return vcl_sapi_detach (wrk);
1356 return vcl_bapi_disconnect_from_vpp ();
1360 * VPPCOM Public API functions
1363 vppcom_app_create (const char *app_name)
1365 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1370 VDBG (1, "already initialized");
1371 return VPPCOM_EEXIST;
1375 vppcom_cfg (&vcm->cfg);
1376 vcl_cfg = &vcm->cfg;
1378 vcm->main_cpu = pthread_self ();
1379 vcm->main_pid = getpid ();
1380 vcm->app_name = format (0, "%s", app_name);
1381 fifo_segment_main_init (&vcm->segment_main, (uword) ~0,
1382 20 /* timeout in secs */);
1383 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1384 clib_spinlock_init (&vcm->workers_lock);
1385 clib_rwlock_init (&vcm->segment_table_lock);
1386 atexit (vppcom_app_exit);
1387 vcl_elog_init (vcm);
1389 /* Allocate default worker */
1390 vcl_worker_alloc_and_init ();
1392 if ((rv = vcl_api_attach ()))
1394 vppcom_app_destroy ();
1398 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1399 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1405 vppcom_app_destroy (void)
1407 vcl_worker_t *wrk, *current_wrk;
1410 if (!pool_elts (vcm->workers))
1413 vcl_evt (VCL_EVT_DETACH, vcm);
1415 current_wrk = vcl_worker_get_current ();
1418 pool_foreach (wrk, vcm->workers) {
1419 if (current_wrk != wrk)
1420 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1424 vcl_api_detach (current_wrk);
1425 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1426 vcl_set_worker_index (~0);
1428 vcl_elog_stop (vcm);
1431 * Free the heap and fix vcm
1433 heap = clib_mem_get_heap ();
1434 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1436 vcm = &_vppcom_main;
1441 vppcom_session_create (u8 proto, u8 is_nonblocking)
1443 vcl_worker_t *wrk = vcl_worker_get_current ();
1444 vcl_session_t *session;
1446 session = vcl_session_alloc (wrk);
1448 session->session_type = proto;
1449 session->session_state = VCL_STATE_CLOSED;
1450 session->vpp_handle = ~0;
1451 session->is_dgram = vcl_proto_is_dgram (proto);
1452 session->vpp_error = SESSION_E_NONE;
1455 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1457 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1458 is_nonblocking, session_index);
1460 VDBG (0, "created session %u", session->session_index);
1462 return vcl_session_handle (session);
1466 vcl_epoll_lt_add (vcl_worker_t *wrk, vcl_session_t *s)
1468 vcl_session_t *cur, *prev;
1470 ASSERT (s->vep.lt_next == VCL_INVALID_SESSION_INDEX);
1472 if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX)
1474 wrk->ep_lt_current = s->session_index;
1475 s->vep.lt_next = s->session_index;
1476 s->vep.lt_prev = s->session_index;
1480 cur = vcl_session_get (wrk, wrk->ep_lt_current);
1481 prev = vcl_session_get (wrk, cur->vep.lt_prev);
1483 prev->vep.lt_next = s->session_index;
1484 s->vep.lt_prev = prev->session_index;
1486 s->vep.lt_next = cur->session_index;
1487 cur->vep.lt_prev = s->session_index;
1491 vcl_epoll_lt_del (vcl_worker_t *wrk, vcl_session_t *s)
1493 vcl_session_t *prev, *next;
1495 ASSERT (s->vep.lt_next != VCL_INVALID_SESSION_INDEX);
1497 if (s->vep.lt_next == s->session_index)
1499 wrk->ep_lt_current = VCL_INVALID_SESSION_INDEX;
1500 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1501 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1505 prev = vcl_session_get (wrk, s->vep.lt_prev);
1506 next = vcl_session_get (wrk, s->vep.lt_next);
1508 prev->vep.lt_next = next->session_index;
1509 next->vep.lt_prev = prev->session_index;
1511 if (s->session_index == wrk->ep_lt_current)
1512 wrk->ep_lt_current = s->vep.lt_next;
1514 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1515 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1519 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1520 vcl_session_handle_t sh, u8 do_disconnect)
1524 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1526 if (s->flags & VCL_SESSION_F_IS_VEP)
1528 u32 next_sh = s->vep.next_sh;
1529 while (next_sh != ~0)
1531 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1532 if (PREDICT_FALSE (rv < 0))
1533 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1534 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1535 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1536 next_sh = s->vep.next_sh;
1541 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1543 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1545 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1546 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1547 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1552 VDBG (1, "session %u [0x%llx] disconnect skipped",
1553 s->session_index, s->vpp_handle);
1557 if (s->session_state == VCL_STATE_LISTEN)
1559 rv = vppcom_session_unbind (sh);
1560 if (PREDICT_FALSE (rv < 0))
1561 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1562 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1563 vppcom_retval_str (rv));
1566 else if (vcl_session_is_ready (s)
1567 || (vcl_session_is_connectable_listener (wrk, s)))
1569 rv = vppcom_session_disconnect (sh);
1570 if (PREDICT_FALSE (rv < 0))
1571 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1572 " rv %d (%s)", s->session_index, s->vpp_handle,
1573 rv, vppcom_retval_str (rv));
1575 else if (s->session_state == VCL_STATE_DISCONNECT)
1577 vcl_send_session_reset_reply (wrk, s, 0);
1579 else if (s->session_state == VCL_STATE_DETACHED)
1581 VDBG (0, "vpp freed session %d before close", s->session_index);
1583 if (!(s->flags & VCL_SESSION_F_PENDING_DISCONNECT))
1586 /* Disconnect/reset messages pending but vpp transport and session
1587 * cleanups already done. Free only after messages drained. */
1588 s->flags |= VCL_SESSION_F_PENDING_FREE;
1591 s->session_state = VCL_STATE_CLOSED;
1593 /* Session is removed only after vpp confirms the disconnect */
1597 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1599 vcl_session_free (wrk, s);
1600 vcl_evt (VCL_EVT_CLOSE, s, rv);
1606 vppcom_session_close (uint32_t session_handle)
1608 vcl_worker_t *wrk = vcl_worker_get_current ();
1609 vcl_session_t *session;
1611 session = vcl_session_get_w_handle (wrk, session_handle);
1613 return VPPCOM_EBADFD;
1614 return vcl_session_cleanup (wrk, session, session_handle,
1615 1 /* do_disconnect */ );
1619 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1621 vcl_worker_t *wrk = vcl_worker_get_current ();
1622 vcl_session_t *session = 0;
1625 return VPPCOM_EINVAL;
1627 session = vcl_session_get_w_handle (wrk, session_handle);
1629 return VPPCOM_EBADFD;
1631 if (session->flags & VCL_SESSION_F_IS_VEP)
1633 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1634 session->session_index);
1635 return VPPCOM_EBADFD;
1638 session->transport.is_ip4 = ep->is_ip4;
1640 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1641 sizeof (ip4_address_t));
1643 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1644 sizeof (ip6_address_t));
1645 session->transport.lcl_port = ep->port;
1648 "session %u handle %u: binding to local %s address %U port %u, "
1650 session->session_index, session_handle,
1651 session->transport.is_ip4 ? "IPv4" : "IPv6", vcl_format_ip46_address,
1652 &session->transport.lcl_ip,
1653 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1654 clib_net_to_host_u16 (session->transport.lcl_port),
1655 vppcom_proto_str (session->session_type));
1656 vcl_evt (VCL_EVT_BIND, session);
1658 if (session->session_type == VPPCOM_PROTO_UDP)
1659 vppcom_session_listen (session_handle, 10);
1665 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1667 vcl_worker_t *wrk = vcl_worker_get_current ();
1668 vcl_session_t *listen_session = 0;
1669 u64 listen_vpp_handle;
1672 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1673 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1674 return VPPCOM_EBADFD;
1676 listen_vpp_handle = listen_session->vpp_handle;
1677 if (listen_session->session_state == VCL_STATE_LISTEN)
1679 VDBG (0, "session %u [0x%llx]: already in listen state!",
1680 listen_sh, listen_vpp_handle);
1684 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1687 * Send listen request to vpp and wait for reply
1689 vcl_send_session_listen (wrk, listen_session);
1690 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1692 vcm->cfg.session_timeout);
1694 if (PREDICT_FALSE (rv))
1696 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1697 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1698 listen_sh, listen_session->vpp_handle, rv,
1699 vppcom_retval_str (rv));
1707 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1709 if (!strcmp (proto_str, "TCP"))
1710 *proto = VPPCOM_PROTO_TCP;
1711 else if (!strcmp (proto_str, "tcp"))
1712 *proto = VPPCOM_PROTO_TCP;
1713 else if (!strcmp (proto_str, "UDP"))
1714 *proto = VPPCOM_PROTO_UDP;
1715 else if (!strcmp (proto_str, "udp"))
1716 *proto = VPPCOM_PROTO_UDP;
1717 else if (!strcmp (proto_str, "TLS"))
1718 *proto = VPPCOM_PROTO_TLS;
1719 else if (!strcmp (proto_str, "tls"))
1720 *proto = VPPCOM_PROTO_TLS;
1721 else if (!strcmp (proto_str, "QUIC"))
1722 *proto = VPPCOM_PROTO_QUIC;
1723 else if (!strcmp (proto_str, "quic"))
1724 *proto = VPPCOM_PROTO_QUIC;
1725 else if (!strcmp (proto_str, "DTLS"))
1726 *proto = VPPCOM_PROTO_DTLS;
1727 else if (!strcmp (proto_str, "dtls"))
1728 *proto = VPPCOM_PROTO_DTLS;
1729 else if (!strcmp (proto_str, "SRTP"))
1730 *proto = VPPCOM_PROTO_SRTP;
1731 else if (!strcmp (proto_str, "srtp"))
1732 *proto = VPPCOM_PROTO_SRTP;
1739 vppcom_session_accept (uint32_t ls_handle, vppcom_endpt_t *ep, uint32_t flags)
1741 u32 client_session_index = ~0, ls_index, accept_flags = 0;
1742 vcl_worker_t *wrk = vcl_worker_get_current ();
1743 session_accepted_msg_t accepted_msg;
1744 vcl_session_t *ls, *client_session = 0;
1745 vcl_session_msg_t *evt;
1750 ls = vcl_session_get_w_handle (wrk, ls_handle);
1752 return VPPCOM_EBADFD;
1754 if ((ls->session_state != VCL_STATE_LISTEN) &&
1755 (ls->session_state != VCL_STATE_LISTEN_NO_MQ) &&
1756 (!vcl_session_is_connectable_listener (wrk, ls)))
1758 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state (%s)",
1759 ls->vpp_handle, vcl_session_state_str (ls->session_state));
1760 return VPPCOM_EBADFD;
1763 ls_index = ls->session_index;
1765 if (clib_fifo_elts (ls->accept_evts_fifo))
1767 clib_fifo_sub2 (ls->accept_evts_fifo, evt);
1768 accept_flags = evt->flags;
1769 accepted_msg = evt->accepted_msg;
1773 is_nonblocking = vcl_session_has_attr (ls, VCL_SESS_ATTR_NONBLOCK);
1776 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1777 return VPPCOM_EAGAIN;
1779 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1780 vcl_worker_flush_mq_events (wrk);
1786 client_session_index =
1787 vcl_session_accepted_handler (wrk, &accepted_msg, ls_index);
1788 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1789 return VPPCOM_ECONNABORTED;
1791 ls = vcl_session_get (wrk, ls_index);
1792 client_session = vcl_session_get (wrk, client_session_index);
1794 if (flags & O_NONBLOCK)
1795 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1798 "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1799 " flags %d, is_nonblocking %u",
1800 ls->session_index, ls->vpp_handle, client_session_index,
1801 client_session->vpp_handle, flags,
1802 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1806 ep->is_ip4 = client_session->transport.is_ip4;
1807 ep->port = client_session->transport.rmt_port;
1808 if (client_session->transport.is_ip4)
1809 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1810 sizeof (ip4_address_t));
1812 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1813 sizeof (ip6_address_t));
1817 "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1819 ls_handle, ls->vpp_handle, client_session_index,
1820 client_session->vpp_handle, vcl_format_ip46_address,
1821 &client_session->transport.rmt_ip,
1822 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1823 clib_net_to_host_u16 (client_session->transport.rmt_port),
1824 vcl_format_ip46_address, &client_session->transport.lcl_ip,
1825 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1826 clib_net_to_host_u16 (client_session->transport.lcl_port));
1827 vcl_evt (VCL_EVT_ACCEPT, client_session, ls, client_session_index);
1830 * Session might have been closed already
1834 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1835 client_session->session_state = VCL_STATE_VPP_CLOSING;
1836 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1837 client_session->session_state = VCL_STATE_DISCONNECT;
1839 return vcl_session_handle (client_session);
1843 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1845 vcl_worker_t *wrk = vcl_worker_get_current ();
1846 vcl_session_t *session = 0;
1850 session = vcl_session_get_w_handle (wrk, session_handle);
1852 return VPPCOM_EBADFD;
1853 session_index = session->session_index;
1855 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1857 VWRN ("cannot connect epoll session %u!", session->session_index);
1858 return VPPCOM_EBADFD;
1861 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1864 "session %u [0x%llx]: already connected to %U:%d proto %s,"
1866 session->session_index, session->vpp_handle,
1867 vcl_format_ip46_address, &session->transport.rmt_ip,
1868 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1869 clib_net_to_host_u16 (session->transport.rmt_port),
1870 vppcom_proto_str (session->session_type),
1871 vcl_session_state_str (session->session_state));
1875 /* Attempt to connect a connectionless listener */
1876 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1878 if (session->session_type != VPPCOM_PROTO_UDP)
1879 return VPPCOM_EINVAL;
1880 vcl_send_session_unlisten (wrk, session);
1881 session->session_state = VCL_STATE_CLOSED;
1884 session->transport.is_ip4 = server_ep->is_ip4;
1885 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1886 session->transport.rmt_port = server_ep->port;
1887 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1888 session->flags |= VCL_SESSION_F_CONNECTED;
1890 VDBG (0, "session %u: connecting to peer %U:%d proto %s",
1891 session->session_index, vcl_format_ip46_address,
1892 &session->transport.rmt_ip,
1893 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1894 clib_net_to_host_u16 (session->transport.rmt_port),
1895 vppcom_proto_str (session->session_type));
1897 vcl_send_session_connect (wrk, session);
1899 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1901 /* State set to STATE_UPDATED to ensure the session is not assumed
1902 * to be ready and to also allow the app to close it prior to vpp's
1903 * connected reply. */
1904 session->session_state = VCL_STATE_UPDATED;
1905 return VPPCOM_EINPROGRESS;
1909 * Wait for reply from vpp if blocking
1911 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1912 vcm->cfg.session_timeout);
1914 session = vcl_session_get (wrk, session_index);
1915 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1916 session->vpp_handle, rv ? "failed" : "succeeded");
1922 vppcom_session_stream_connect (uint32_t session_handle,
1923 uint32_t parent_session_handle)
1925 vcl_worker_t *wrk = vcl_worker_get_current ();
1926 vcl_session_t *session, *parent_session;
1927 u32 session_index, parent_session_index;
1930 session = vcl_session_get_w_handle (wrk, session_handle);
1932 return VPPCOM_EBADFD;
1933 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1934 if (!parent_session)
1935 return VPPCOM_EBADFD;
1937 session_index = session->session_index;
1938 parent_session_index = parent_session->session_index;
1939 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1941 VDBG (0, "ERROR: cannot connect epoll session %u!",
1942 session->session_index);
1943 return VPPCOM_EBADFD;
1946 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1949 "session handle %u [0x%llx]: session already "
1950 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1951 session_handle, session->vpp_handle, parent_session_handle,
1952 parent_session->vpp_handle,
1953 vppcom_proto_str (session->session_type), session->session_state,
1954 vcl_session_state_str (session->session_state));
1958 /* Connect to quic session specifics */
1959 session->transport.is_ip4 = parent_session->transport.is_ip4;
1960 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1961 session->transport.rmt_port = 0;
1962 session->parent_handle = parent_session->vpp_handle;
1964 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1965 session_handle, parent_session_handle, parent_session->vpp_handle);
1968 * Send connect request and wait for reply from vpp
1970 vcl_send_session_connect (wrk, session);
1971 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1972 vcm->cfg.session_timeout);
1974 session->listener_index = parent_session_index;
1975 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1977 parent_session->n_accepted_sessions++;
1979 session = vcl_session_get (wrk, session_index);
1980 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1981 session->vpp_handle, rv ? "failed" : "succeeded");
1987 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1990 vcl_worker_t *wrk = vcl_worker_get_current ();
1991 int rv, n_read = 0, is_nonblocking;
1992 vcl_session_t *s = 0;
1993 svm_fifo_t *rx_fifo;
1998 if (PREDICT_FALSE (!buf))
1999 return VPPCOM_EFAULT;
2001 s = vcl_session_get_w_handle (wrk, session_handle);
2002 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2003 return VPPCOM_EBADFD;
2005 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2007 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
2008 s->session_index, s->vpp_handle, s->session_state,
2009 vcl_session_state_str (s->session_state));
2010 return vcl_session_closed_error (s);
2013 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
2015 /* Vpp would ack the incoming data and enqueue it for reading.
2016 * So even if SHUT_RD is set, we can still read() the data if
2017 * the session is ready.
2019 if (!vcl_session_read_ready (s))
2025 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2026 is_ct = vcl_session_is_ct (s);
2027 mq = wrk->app_event_queue;
2028 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2029 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2031 if (svm_fifo_is_empty_cons (rx_fifo))
2035 if (vcl_session_is_closing (s))
2036 return vcl_session_closing_error (s);
2038 svm_fifo_unset_event (s->rx_fifo);
2039 svm_fifo_unset_event (rx_fifo);
2040 return VPPCOM_EWOULDBLOCK;
2042 while (svm_fifo_is_empty_cons (rx_fifo))
2044 if (vcl_session_is_closing (s))
2045 return vcl_session_closing_error (s);
2048 svm_fifo_unset_event (s->rx_fifo);
2049 svm_fifo_unset_event (rx_fifo);
2051 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2052 vcl_worker_flush_mq_events (wrk);
2059 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
2061 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
2070 if (svm_fifo_is_empty_cons (rx_fifo))
2073 svm_fifo_unset_event (s->rx_fifo);
2074 svm_fifo_unset_event (rx_fifo);
2075 if (!svm_fifo_is_empty_cons (rx_fifo)
2076 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
2078 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2079 e->event_type = SESSION_IO_EVT_RX;
2080 e->session_index = s->session_index;
2083 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
2085 /* More data enqueued while reading. Try to drain it
2086 * or fill the buffer. Avoid doing that for dgrams */
2092 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
2094 svm_fifo_clear_deq_ntf (rx_fifo);
2095 app_send_io_evt_to_vpp (s->vpp_evt_q,
2096 s->rx_fifo->shr->master_session_index,
2097 SESSION_IO_EVT_RX, SVM_Q_WAIT);
2100 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
2101 s->vpp_handle, n_read, rx_fifo);
2107 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
2109 return (vppcom_session_read_internal (session_handle, buf, n, 0));
2113 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
2115 return (vppcom_session_read_internal (session_handle, buf, n, 1));
2119 vppcom_session_read_segments (uint32_t session_handle,
2120 vppcom_data_segment_t * ds, uint32_t n_segments,
2123 vcl_worker_t *wrk = vcl_worker_get_current ();
2124 int n_read = 0, is_nonblocking;
2125 vcl_session_t *s = 0;
2126 svm_fifo_t *rx_fifo;
2130 s = vcl_session_get_w_handle (wrk, session_handle);
2131 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2132 return VPPCOM_EBADFD;
2134 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2135 return vcl_session_closed_error (s);
2137 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2138 is_ct = vcl_session_is_ct (s);
2139 mq = wrk->app_event_queue;
2140 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2141 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2143 if (svm_fifo_is_empty_cons (rx_fifo))
2148 svm_fifo_unset_event (s->rx_fifo);
2149 svm_fifo_unset_event (rx_fifo);
2150 return VPPCOM_EWOULDBLOCK;
2152 while (svm_fifo_is_empty_cons (rx_fifo))
2154 if (vcl_session_is_closing (s))
2155 return vcl_session_closing_error (s);
2158 svm_fifo_unset_event (s->rx_fifo);
2159 svm_fifo_unset_event (rx_fifo);
2161 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2162 vcl_worker_flush_mq_events (wrk);
2166 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2167 (svm_fifo_seg_t *) ds, &n_segments, max_bytes);
2169 return VPPCOM_EAGAIN;
2171 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2174 svm_fifo_unset_event (s->rx_fifo);
2175 svm_fifo_unset_event (rx_fifo);
2176 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2177 && svm_fifo_set_event (rx_fifo)
2178 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2181 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2182 e->event_type = SESSION_IO_EVT_RX;
2183 e->session_index = s->session_index;
2187 s->rx_bytes_pending += n_read;
2192 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2194 vcl_worker_t *wrk = vcl_worker_get_current ();
2198 s = vcl_session_get_w_handle (wrk, session_handle);
2199 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2202 is_ct = vcl_session_is_ct (s);
2203 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2205 ASSERT (s->rx_bytes_pending >= n_bytes);
2206 s->rx_bytes_pending -= n_bytes;
2210 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2212 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2214 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2220 vppcom_session_write_inline (vcl_worker_t *wrk, vcl_session_t *s, void *buf,
2221 size_t n, u8 is_flush, u8 is_dgram)
2223 int n_write, is_nonblocking;
2224 session_evt_type_t et;
2225 svm_fifo_t *tx_fifo;
2229 /* Accept zero length writes but just return */
2230 if (PREDICT_FALSE (!n))
2233 if (PREDICT_FALSE (!buf))
2234 return VPPCOM_EFAULT;
2236 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2238 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2239 " session!", s->session_index, s->vpp_handle);
2240 return VPPCOM_EBADFD;
2243 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2245 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2246 s->session_index, s->vpp_handle, s->session_state,
2247 vcl_session_state_str (s->session_state));
2248 return vcl_session_closed_error (s);;
2251 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_WR_SHUTDOWN))
2253 VDBG (1, "session %u [0x%llx]: is shutdown! state 0x%x (%s)",
2254 s->session_index, s->vpp_handle, s->session_state,
2255 vcl_session_state_str (s->session_state));
2256 return VPPCOM_EPIPE;
2259 is_ct = vcl_session_is_ct (s);
2260 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2261 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2263 mq = wrk->app_event_queue;
2264 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2268 return VPPCOM_EWOULDBLOCK;
2270 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2272 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2273 if (vcl_session_is_closing (s))
2274 return vcl_session_closing_error (s);
2276 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2277 vcl_worker_flush_mq_events (wrk);
2281 et = SESSION_IO_EVT_TX;
2282 if (is_flush && !is_ct)
2283 et = SESSION_IO_EVT_TX_FLUSH;
2287 et = vcl_session_dgram_tx_evt (s, et);
2289 app_send_dgram_raw_gso (tx_fifo, &s->transport, s->vpp_evt_q, buf, n,
2290 s->gso_size, et, 0 /* do_evt */, SVM_Q_WAIT);
2294 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2295 0 /* do_evt */, SVM_Q_WAIT);
2298 if (svm_fifo_set_event (s->tx_fifo))
2299 app_send_io_evt_to_vpp (
2300 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2302 /* The underlying fifo segment can run out of memory */
2303 if (PREDICT_FALSE (n_write < 0))
2304 return VPPCOM_EAGAIN;
2306 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2307 s->vpp_handle, n_write);
2313 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2315 vcl_worker_t *wrk = vcl_worker_get_current ();
2318 s = vcl_session_get_w_handle (wrk, session_handle);
2319 if (PREDICT_FALSE (!s))
2320 return VPPCOM_EBADFD;
2322 return vppcom_session_write_inline (wrk, s, buf, n, 0 /* is_flush */,
2323 s->is_dgram ? 1 : 0);
2327 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2329 vcl_worker_t *wrk = vcl_worker_get_current ();
2332 s = vcl_session_get_w_handle (wrk, session_handle);
2333 if (PREDICT_FALSE (!s))
2334 return VPPCOM_EBADFD;
2336 return vppcom_session_write_inline (wrk, s, buf, n, 1 /* is_flush */,
2337 s->is_dgram ? 1 : 0);
2340 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2341 if (PREDICT_FALSE (!_s->rx_fifo)) \
2343 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2345 if (!vcl_session_is_ct (_s)) \
2347 svm_fifo_unset_event (_s->rx_fifo); \
2348 if (svm_fifo_is_empty (_s->rx_fifo)) \
2351 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2353 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2354 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2360 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2361 unsigned long n_bits, unsigned long *read_map,
2362 unsigned long *write_map,
2363 unsigned long *except_map, u32 * bits_set)
2365 session_disconnected_msg_t *disconnected_msg;
2366 session_connected_msg_t *connected_msg;
2370 switch (e->event_type)
2372 case SESSION_IO_EVT_RX:
2373 sid = e->session_index;
2374 s = vcl_session_get (wrk, sid);
2375 if (!s || !vcl_session_is_open (s))
2377 vcl_fifo_rx_evt_valid_or_break (s);
2378 if (sid < n_bits && read_map)
2380 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2384 case SESSION_IO_EVT_TX:
2385 sid = e->session_index;
2386 s = vcl_session_get (wrk, sid);
2387 if (!s || !vcl_session_is_open (s))
2389 if (sid < n_bits && write_map)
2391 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2395 case SESSION_CTRL_EVT_ACCEPTED:
2397 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2399 s = vcl_session_get (wrk, e->session_index);
2402 sid = s->session_index;
2403 if (sid < n_bits && read_map)
2405 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2409 case SESSION_CTRL_EVT_CONNECTED:
2412 connected_msg = (session_connected_msg_t *) e->data;
2413 sid = vcl_session_connected_handler (wrk, connected_msg);
2416 sid = e->session_index;
2417 if (sid == VCL_INVALID_SESSION_INDEX)
2419 if (!(sid < n_bits && write_map))
2421 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2423 s = vcl_session_get (wrk, sid);
2426 /* We didn't have a fifo when the event was added */
2427 svm_fifo_add_want_deq_ntf (
2428 (vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo),
2429 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2431 case SESSION_CTRL_EVT_DISCONNECTED:
2432 disconnected_msg = (session_disconnected_msg_t *) e->data;
2433 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2436 sid = s->session_index;
2437 if (sid < n_bits && except_map)
2439 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2443 case SESSION_CTRL_EVT_RESET:
2444 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2445 if (sid < n_bits && except_map)
2447 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2451 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2452 vcl_session_unlisten_reply_handler (wrk, e->data);
2454 case SESSION_CTRL_EVT_MIGRATED:
2455 vcl_session_migrated_handler (wrk, e->data);
2457 case SESSION_CTRL_EVT_CLEANUP:
2458 vcl_session_cleanup_handler (wrk, e->data);
2460 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2461 vcl_session_worker_update_reply_handler (wrk, e->data);
2463 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2464 vcl_session_req_worker_update_handler (wrk, e->data);
2466 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2467 vcl_session_app_add_segment_handler (wrk, e->data);
2469 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2470 vcl_session_app_del_segment_handler (wrk, e->data);
2472 case SESSION_CTRL_EVT_APP_WRK_RPC:
2473 vcl_worker_rpc_handler (wrk, e->data);
2476 clib_warning ("unhandled: %u", e->event_type);
2482 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2483 unsigned long n_bits, unsigned long *read_map,
2484 unsigned long *write_map, unsigned long *except_map,
2485 double time_to_wait, u32 * bits_set)
2487 svm_msg_q_msg_t *msg;
2491 if (svm_msg_q_is_empty (mq))
2498 else if (time_to_wait < 0)
2499 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2502 if (svm_msg_q_timedwait (mq, time_to_wait))
2506 vcl_mq_dequeue_batch (wrk, mq, ~0);
2508 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2510 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2511 e = svm_msg_q_msg_data (mq, msg);
2512 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2513 except_map, bits_set);
2514 svm_msg_q_free_msg (mq, msg);
2516 vec_reset_length (wrk->mq_msg_vector);
2517 vcl_handle_pending_wrk_updates (wrk);
2522 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2523 vcl_si_set * read_map, vcl_si_set * write_map,
2524 vcl_si_set * except_map, double time_to_wait,
2527 double wait = 0, start = 0;
2531 wait = time_to_wait;
2532 start = clib_time_now (&wrk->clib_time);
2537 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2538 write_map, except_map, wait, bits_set);
2544 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2552 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2553 vcl_si_set * read_map, vcl_si_set * write_map,
2554 vcl_si_set * except_map, double time_to_wait,
2557 vcl_mq_evt_conn_t *mqc;
2558 int __clib_unused n_read;
2562 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
2564 vcl_api_retry_attach (wrk);
2568 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2569 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2570 vec_len (wrk->mq_events), time_to_wait);
2571 for (i = 0; i < n_mq_evts; i++)
2573 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
2575 vcl_api_handle_disconnect (wrk);
2579 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2580 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2581 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2582 except_map, 0, bits_set);
2585 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2589 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2590 vcl_si_set * except_map, double time_to_wait)
2592 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2593 vcl_worker_t *wrk = vcl_worker_get_current ();
2594 vcl_session_t *s = 0;
2597 if (n_bits && read_map)
2599 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2600 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2601 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2602 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2604 if (n_bits && write_map)
2606 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2607 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2608 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2609 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2611 if (n_bits && except_map)
2613 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2614 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2615 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2616 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2625 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2627 if (!(s = vcl_session_get (wrk, sid)))
2629 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2634 if (vcl_session_write_ready (s))
2636 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2639 else if (s->tx_fifo)
2641 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2642 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2650 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2652 if (!(s = vcl_session_get (wrk, sid)))
2654 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2659 if (vcl_session_read_ready (s))
2661 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2668 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2670 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2671 read_map, write_map, except_map, &bits_set);
2673 vec_reset_length (wrk->unhandled_evts_vector);
2675 if (vcm->cfg.use_mq_eventfd)
2676 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2677 time_to_wait, &bits_set);
2679 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2680 time_to_wait, &bits_set);
2686 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2688 vppcom_epoll_t *vep;
2689 u32 sh = vep_handle;
2692 if (VPPCOM_DEBUG <= 3)
2695 s = vcl_session_get_w_handle (wrk, vep_handle);
2696 if (PREDICT_FALSE (!s))
2698 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2701 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2703 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2707 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2710 " is_vep_session = %u\n"
2711 " next_sh = 0x%x (%u)\n"
2712 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2713 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2715 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2717 s = vcl_session_get_w_handle (wrk, sh);
2718 if (PREDICT_FALSE (!s))
2720 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2723 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2725 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2727 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2729 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2733 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2734 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2735 sh, s->vep.vep_sh, vep_handle);
2736 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2738 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2740 " next_sh = 0x%x (%u)\n"
2741 " prev_sh = 0x%x (%u)\n"
2742 " vep_sh = 0x%x (%u)\n"
2743 " ev.events = 0x%x\n"
2744 " ev.data.u64 = 0x%llx\n"
2747 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2748 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2749 vep->ev.data.u64, vep->et_mask);
2754 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2758 vppcom_epoll_create (void)
2760 vcl_worker_t *wrk = vcl_worker_get_current ();
2761 vcl_session_t *vep_session;
2763 vep_session = vcl_session_alloc (wrk);
2765 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2766 vep_session->vep.vep_sh = ~0;
2767 vep_session->vep.next_sh = ~0;
2768 vep_session->vep.prev_sh = ~0;
2769 vep_session->vpp_handle = ~0;
2771 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2772 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2774 return vcl_session_handle (vep_session);
2778 vcl_epoll_ctl_add_unhandled_event (vcl_worker_t *wrk, vcl_session_t *s,
2779 u8 is_epollet, session_evt_type_t evt)
2783 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
2784 vcl_epoll_lt_add (wrk, s);
2788 session_event_t e = { 0 };
2789 e.session_index = s->session_index;
2791 if (evt == SESSION_IO_EVT_RX)
2792 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2793 vec_add1 (wrk->unhandled_evts_vector, e);
2797 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2798 struct epoll_event *event)
2800 vcl_worker_t *wrk = vcl_worker_get_current ();
2801 int rv = VPPCOM_OK, add_evt = 0;
2802 vcl_session_t *vep_session;
2806 if (vep_handle == session_handle)
2808 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2809 return VPPCOM_EINVAL;
2812 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2813 if (PREDICT_FALSE (!vep_session))
2815 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2816 return VPPCOM_EBADFD;
2818 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2820 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2821 return VPPCOM_EINVAL;
2824 ASSERT (vep_session->vep.vep_sh == ~0);
2825 ASSERT (vep_session->vep.prev_sh == ~0);
2827 s = vcl_session_get_w_handle (wrk, session_handle);
2828 if (PREDICT_FALSE (!s))
2830 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2831 return VPPCOM_EBADFD;
2833 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2835 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2836 return VPPCOM_EINVAL;
2842 if (PREDICT_FALSE (!event))
2844 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2845 return VPPCOM_EINVAL;
2847 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2849 VDBG (0, "EPOLL_CTL_ADD: %u already epolled!", s->session_index);
2853 if (vep_session->vep.next_sh != ~0)
2855 vcl_session_t *next_session;
2856 next_session = vcl_session_get_w_handle (wrk,
2857 vep_session->vep.next_sh);
2858 if (PREDICT_FALSE (!next_session))
2860 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2861 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2862 return VPPCOM_EBADFD;
2864 ASSERT (next_session->vep.prev_sh == vep_handle);
2865 next_session->vep.prev_sh = session_handle;
2867 s->vep.next_sh = vep_session->vep.next_sh;
2868 s->vep.prev_sh = vep_handle;
2869 s->vep.vep_sh = vep_handle;
2870 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2871 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
2873 s->flags &= ~VCL_SESSION_F_IS_VEP;
2874 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2875 vep_session->vep.next_sh = session_handle;
2877 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2878 if (txf && (event->events & EPOLLOUT))
2879 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2881 /* Generate EPOLLOUT if tx fifo not full */
2882 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2884 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2888 /* Generate EPOLLIN if rx fifo has data */
2889 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2891 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2895 if (!add_evt && vcl_session_is_closing (s))
2897 session_event_t e = { 0 };
2898 if (s->session_state == VCL_STATE_VPP_CLOSING)
2899 e.event_type = SESSION_CTRL_EVT_DISCONNECTED;
2901 e.event_type = SESSION_CTRL_EVT_RESET;
2902 e.session_index = s->session_index;
2904 vec_add1 (wrk->unhandled_evts_vector, e);
2906 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2907 vep_handle, session_handle, event->events, event->data.u64);
2908 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2912 if (PREDICT_FALSE (!event))
2914 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2918 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2920 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2924 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2926 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2927 session_handle, s->vep.vep_sh, vep_handle);
2932 /* Generate EPOLLOUT if session write ready nd event was not on */
2933 if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT) &&
2934 (vcl_session_write_ready (s) > 0))
2936 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2939 /* Generate EPOLLIN if session read ready and event was not on */
2940 if ((event->events & EPOLLIN) && !(s->vep.ev.events & EPOLLIN) &&
2941 (vcl_session_read_ready (s) > 0))
2943 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2946 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2948 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2951 if (event->events & EPOLLOUT)
2952 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2954 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2956 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2957 vep_handle, session_handle, event->events, event->data.u64);
2961 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2963 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2967 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2969 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2970 session_handle, s->vep.vep_sh, vep_handle);
2975 if (s->vep.prev_sh == vep_handle)
2976 vep_session->vep.next_sh = s->vep.next_sh;
2979 vcl_session_t *prev_session;
2980 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2981 if (PREDICT_FALSE (!prev_session))
2983 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2984 s->vep.prev_sh, session_handle);
2985 return VPPCOM_EBADFD;
2987 ASSERT (prev_session->vep.next_sh == session_handle);
2988 prev_session->vep.next_sh = s->vep.next_sh;
2990 if (s->vep.next_sh != ~0)
2992 vcl_session_t *next_session;
2993 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2994 if (PREDICT_FALSE (!next_session))
2996 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2997 s->vep.next_sh, session_handle);
2998 return VPPCOM_EBADFD;
3000 ASSERT (next_session->vep.prev_sh == session_handle);
3001 next_session->vep.prev_sh = s->vep.prev_sh;
3004 if (s->vep.lt_next != VCL_INVALID_SESSION_INDEX)
3005 vcl_epoll_lt_del (wrk, s);
3007 memset (&s->vep, 0, sizeof (s->vep));
3008 s->vep.next_sh = ~0;
3009 s->vep.prev_sh = ~0;
3011 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
3012 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
3014 if (vcl_session_is_open (s))
3016 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
3018 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3021 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
3023 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
3027 VDBG (0, "Invalid operation (%d)!", op);
3031 vep_verify_epoll_chain (wrk, vep_handle);
3038 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
3039 struct epoll_event *events, u32 * num_ev)
3041 session_disconnected_msg_t *disconnected_msg;
3042 session_connected_msg_t *connected_msg;
3043 u32 sid = ~0, session_events;
3044 u64 session_evt_data = ~0;
3048 switch (e->event_type)
3050 case SESSION_IO_EVT_RX:
3051 sid = e->session_index;
3052 s = vcl_session_get (wrk, sid);
3053 if (vcl_session_is_closed (s))
3055 vcl_fifo_rx_evt_valid_or_break (s);
3056 session_events = s->vep.ev.events;
3057 if (!(EPOLLIN & s->vep.ev.events) ||
3058 (s->flags & VCL_SESSION_F_HAS_RX_EVT) ||
3059 (s->vep.lt_next != VCL_INVALID_SESSION_INDEX))
3062 events[*num_ev].events = EPOLLIN;
3063 session_evt_data = s->vep.ev.data.u64;
3064 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
3066 case SESSION_IO_EVT_TX:
3067 sid = e->session_index;
3068 s = vcl_session_get (wrk, sid);
3069 if (!s || !vcl_session_is_open (s))
3071 session_events = s->vep.ev.events;
3072 if (!(EPOLLOUT & session_events))
3075 events[*num_ev].events = EPOLLOUT;
3076 session_evt_data = s->vep.ev.data.u64;
3077 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
3078 s->ct_tx_fifo : s->tx_fifo);
3080 case SESSION_CTRL_EVT_ACCEPTED:
3082 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
3084 s = vcl_session_get (wrk, e->session_index);
3087 session_events = s->vep.ev.events;
3088 sid = s->session_index;
3089 if (!(EPOLLIN & session_events) ||
3090 (s->vep.lt_next != VCL_INVALID_SESSION_INDEX))
3093 events[*num_ev].events = EPOLLIN;
3094 session_evt_data = s->vep.ev.data.u64;
3096 case SESSION_CTRL_EVT_CONNECTED:
3099 connected_msg = (session_connected_msg_t *) e->data;
3100 sid = vcl_session_connected_handler (wrk, connected_msg);
3103 sid = e->session_index;
3104 s = vcl_session_get (wrk, sid);
3105 if (vcl_session_is_closed (s))
3107 session_events = s->vep.ev.events;
3108 /* Generate EPOLLOUT because there's no connected event */
3109 if (!(EPOLLOUT & session_events) || !s->tx_fifo)
3111 /* We didn't have a fifo when the event was added */
3112 svm_fifo_add_want_deq_ntf (
3113 (vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo),
3114 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3116 events[*num_ev].events = EPOLLOUT;
3117 session_evt_data = s->vep.ev.data.u64;
3118 if (s->session_state == VCL_STATE_DETACHED)
3119 events[*num_ev].events |= EPOLLHUP;
3121 case SESSION_CTRL_EVT_DISCONNECTED:
3124 disconnected_msg = (session_disconnected_msg_t *) e->data;
3125 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
3129 s = vcl_session_get (wrk, e->session_index);
3130 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3132 if (vcl_session_is_closed (s) ||
3133 !(s->flags & VCL_SESSION_F_IS_VEP_SESSION))
3135 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3136 vcl_session_free (wrk, s);
3139 sid = s->session_index;
3140 session_events = s->vep.ev.events;
3142 if (EPOLLRDHUP & session_events)
3144 /* If app can distinguish between RDHUP and HUP,
3145 * we make finer control */
3146 events[*num_ev].events = EPOLLRDHUP;
3147 if (s->flags & VCL_SESSION_F_WR_SHUTDOWN)
3149 events[*num_ev].events |= EPOLLHUP;
3154 events[*num_ev].events = EPOLLHUP;
3156 session_evt_data = s->vep.ev.data.u64;
3159 case SESSION_CTRL_EVT_BOUND:
3160 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
3162 case SESSION_CTRL_EVT_RESET:
3166 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
3167 s = vcl_session_get (wrk, sid);
3171 sid = e->session_index;
3172 s = vcl_session_get (wrk, sid);
3173 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3175 if (vcl_session_is_closed (s) ||
3176 !(s->flags & VCL_SESSION_F_IS_VEP_SESSION))
3178 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3179 vcl_session_free (wrk, s);
3182 session_events = s->vep.ev.events;
3184 events[*num_ev].events = EPOLLERR | EPOLLHUP;
3185 if ((EPOLLRDHUP & session_events) &&
3186 (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3188 events[*num_ev].events |= EPOLLRDHUP;
3190 if ((EPOLLIN & session_events) && (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3192 events[*num_ev].events |= EPOLLIN;
3194 session_evt_data = s->vep.ev.data.u64;
3196 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
3197 vcl_session_unlisten_reply_handler (wrk, e->data);
3199 case SESSION_CTRL_EVT_MIGRATED:
3200 vcl_session_migrated_handler (wrk, e->data);
3202 case SESSION_CTRL_EVT_CLEANUP:
3203 vcl_session_cleanup_handler (wrk, e->data);
3205 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
3206 vcl_session_req_worker_update_handler (wrk, e->data);
3208 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
3209 vcl_session_worker_update_reply_handler (wrk, e->data);
3211 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
3212 vcl_session_app_add_segment_handler (wrk, e->data);
3214 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
3215 vcl_session_app_del_segment_handler (wrk, e->data);
3217 case SESSION_CTRL_EVT_APP_WRK_RPC:
3218 vcl_worker_rpc_handler (wrk, e->data);
3221 VDBG (0, "unhandled: %u", e->event_type);
3227 events[*num_ev].data.u64 = session_evt_data;
3228 if (EPOLLONESHOT & session_events)
3230 s = vcl_session_get (wrk, sid);
3231 s->vep.ev.events = 0;
3233 else if (!(EPOLLET & session_events))
3235 s = vcl_session_get (wrk, sid);
3236 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
3237 vcl_epoll_lt_add (wrk, s);
3244 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
3245 struct epoll_event *events, u32 maxevents,
3246 double wait_for_time, u32 * num_ev)
3248 svm_msg_q_msg_t *msg;
3252 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
3253 goto handle_dequeued;
3255 if (svm_msg_q_is_empty (mq))
3259 else if (wait_for_time < 0)
3260 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
3263 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3267 ASSERT (maxevents > *num_ev);
3268 vcl_mq_dequeue_batch (wrk, mq, ~0);
3271 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3273 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3274 e = svm_msg_q_msg_data (mq, msg);
3275 if (*num_ev < maxevents)
3276 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3278 vcl_handle_mq_event (wrk, e);
3279 svm_msg_q_free_msg (mq, msg);
3281 vec_reset_length (wrk->mq_msg_vector);
3282 vcl_handle_pending_wrk_updates (wrk);
3287 vppcom_epoll_wait_condvar (vcl_worker_t *wrk, struct epoll_event *events,
3288 int maxevents, u32 n_evts, double timeout_ms)
3295 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3300 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3301 timeout_ms, &n_evts);
3302 if (n_evts || !timeout_ms)
3305 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3311 vppcom_epoll_wait_eventfd (vcl_worker_t *wrk, struct epoll_event *events,
3312 int maxevents, u32 n_evts, double timeout_ms)
3314 int __clib_unused n_read;
3315 vcl_mq_evt_conn_t *mqc;
3320 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
3322 vcl_api_retry_attach (wrk);
3326 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3330 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3335 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3336 vec_len (wrk->mq_events), timeout_ms);
3339 VDBG (0, "epoll_wait error %u", errno);
3343 for (i = 0; i < n_mq_evts; i++)
3345 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
3347 /* api socket was closed */
3348 vcl_api_handle_disconnect (wrk);
3352 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3353 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3354 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3358 if (n_evts || !timeout_ms)
3361 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3367 vcl_epoll_wait_handle_lt (vcl_worker_t *wrk, struct epoll_event *events,
3368 int maxevents, u32 *n_evts)
3370 u32 add_event = 0, next;
3375 ASSERT (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX);
3376 if (*n_evts >= maxevents)
3379 next = wrk->ep_lt_current;
3382 s = vcl_session_get (wrk, next);
3383 next = s->vep.lt_next;
3385 if ((s->vep.ev.events & EPOLLIN) && (rv = vcl_session_read_ready (s)))
3388 events[*n_evts].events |= rv > 0 ? EPOLLIN : EPOLLHUP | EPOLLRDHUP;
3389 evt_data = s->vep.ev.data.u64;
3391 if ((s->vep.ev.events & EPOLLOUT) && (rv = vcl_session_write_ready (s)))
3394 events[*n_evts].events |= rv > 0 ? EPOLLOUT : EPOLLHUP | EPOLLRDHUP;
3395 evt_data = s->vep.ev.data.u64;
3397 if (!add_event && s->session_state > VCL_STATE_READY)
3400 events[*n_evts].events |= EPOLLHUP | EPOLLRDHUP;
3401 evt_data = s->vep.ev.data.u64;
3405 events[*n_evts].data.u64 = evt_data;
3408 if (EPOLLONESHOT & s->vep.ev.events)
3409 s->vep.ev.events = 0;
3410 if (*n_evts == maxevents)
3412 wrk->ep_lt_current = next;
3418 vcl_epoll_lt_del (wrk, s);
3419 if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX)
3423 while (next != wrk->ep_lt_current);
3427 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3428 int maxevents, double wait_for_time)
3430 vcl_worker_t *wrk = vcl_worker_get_current ();
3431 vcl_session_t *vep_session;
3435 if (PREDICT_FALSE (maxevents <= 0))
3437 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3438 return VPPCOM_EINVAL;
3441 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3443 return VPPCOM_EBADFD;
3445 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3447 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3448 return VPPCOM_EINVAL;
3451 if (vec_len (wrk->unhandled_evts_vector))
3453 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3455 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3457 if (n_evts == maxevents)
3459 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3463 vec_reset_length (wrk->unhandled_evts_vector);
3466 if (PREDICT_FALSE (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX))
3467 vcl_epoll_wait_handle_lt (wrk, events, maxevents, &n_evts);
3469 /* Request to only drain unhandled */
3470 if ((int) wait_for_time == -2)
3474 if (vcm->cfg.use_mq_eventfd)
3475 n_evts = vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3478 n_evts = vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3485 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3486 void *buffer, uint32_t * buflen)
3488 vcl_worker_t *wrk = vcl_worker_get_current ();
3489 u32 *flags = buffer;
3490 vppcom_endpt_t *ep = buffer;
3491 transport_endpt_attr_t tea;
3492 vcl_session_t *session;
3495 session = vcl_session_get_w_handle (wrk, session_handle);
3497 return VPPCOM_EBADFD;
3501 case VPPCOM_ATTR_GET_NREAD:
3502 rv = vcl_session_read_ready (session);
3503 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3507 case VPPCOM_ATTR_GET_NWRITE:
3508 rv = vcl_session_write_ready (session);
3509 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3513 case VPPCOM_ATTR_GET_FLAGS:
3514 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3518 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3520 *buflen = sizeof (*flags);
3521 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3522 "is_nonblocking = %u", session_handle, *flags,
3523 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3529 case VPPCOM_ATTR_SET_FLAGS:
3530 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3532 if (*flags & O_NONBLOCK)
3533 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3535 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3537 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3538 " is_nonblocking = %u", session_handle, *flags,
3539 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3545 case VPPCOM_ATTR_GET_PEER_ADDR:
3546 if (PREDICT_TRUE (buffer && buflen &&
3547 (*buflen >= sizeof (*ep)) && ep->ip))
3549 ep->is_ip4 = session->transport.is_ip4;
3550 ep->port = session->transport.rmt_port;
3551 if (session->transport.is_ip4)
3552 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3553 sizeof (ip4_address_t));
3555 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3556 sizeof (ip6_address_t));
3557 *buflen = sizeof (*ep);
3559 "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3560 "addr = %U, port %u",
3561 session_handle, ep->is_ip4, vcl_format_ip46_address,
3562 &session->transport.rmt_ip,
3563 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3564 clib_net_to_host_u16 (ep->port));
3570 case VPPCOM_ATTR_GET_LCL_ADDR:
3571 if (PREDICT_TRUE (buffer && buflen &&
3572 (*buflen >= sizeof (*ep)) && ep->ip))
3574 ep->is_ip4 = session->transport.is_ip4;
3575 ep->port = session->transport.lcl_port;
3576 if (session->transport.is_ip4)
3577 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3578 sizeof (ip4_address_t));
3580 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3581 sizeof (ip6_address_t));
3582 *buflen = sizeof (*ep);
3584 "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3586 session_handle, ep->is_ip4, vcl_format_ip46_address,
3587 &session->transport.lcl_ip,
3588 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3589 clib_net_to_host_u16 (ep->port));
3595 case VPPCOM_ATTR_SET_LCL_ADDR:
3596 if (PREDICT_TRUE (buffer && buflen &&
3597 (*buflen >= sizeof (*ep)) && ep->ip))
3599 session->transport.is_ip4 = ep->is_ip4;
3600 session->transport.lcl_port = ep->port;
3601 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3602 *buflen = sizeof (*ep);
3604 "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3606 session_handle, ep->is_ip4, vcl_format_ip46_address,
3607 &session->transport.lcl_ip,
3608 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3609 clib_net_to_host_u16 (ep->port));
3615 case VPPCOM_ATTR_GET_LIBC_EPFD:
3616 rv = session->libc_epfd;
3617 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3620 case VPPCOM_ATTR_SET_LIBC_EPFD:
3621 if (PREDICT_TRUE (buffer && buflen &&
3622 (*buflen == sizeof (session->libc_epfd))))
3624 session->libc_epfd = *(int *) buffer;
3625 *buflen = sizeof (session->libc_epfd);
3627 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3628 session->libc_epfd, *buflen);
3634 case VPPCOM_ATTR_GET_PROTOCOL:
3635 if (buffer && buflen && (*buflen >= sizeof (int)))
3637 *(int *) buffer = session->session_type;
3638 *buflen = sizeof (int);
3640 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3641 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3647 case VPPCOM_ATTR_GET_LISTEN:
3648 if (buffer && buflen && (*buflen >= sizeof (int)))
3650 *(int *) buffer = vcl_session_has_attr (session,
3651 VCL_SESS_ATTR_LISTEN);
3652 *buflen = sizeof (int);
3654 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3661 case VPPCOM_ATTR_GET_ERROR:
3662 if (buffer && buflen && (*buflen >= sizeof (int)))
3664 *(int *) buffer = 0;
3665 *buflen = sizeof (int);
3667 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3668 *(int *) buffer, *buflen);
3674 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3675 if (buffer && buflen && (*buflen >= sizeof (u32)))
3679 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3681 svm_fifo_size (session->tx_fifo) :
3682 vcm->cfg.tx_fifo_size);
3683 *buflen = sizeof (u32);
3685 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3686 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3693 case VPPCOM_ATTR_SET_DSCP:
3694 if (buffer && buflen && (*buflen >= sizeof (u8)))
3696 session->dscp = *(u8 *) buffer;
3698 VDBG (2, "VPPCOM_ATTR_SET_DSCP: %u (0x%x), buflen %d,",
3699 *(u8 *) buffer, *(u8 *) buffer, *buflen);
3705 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3706 if (buffer && buflen && (*buflen == sizeof (u32)))
3709 session->sndbuf_size = *(u32 *) buffer;
3710 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3711 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3718 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3719 if (buffer && buflen && (*buflen >= sizeof (u32)))
3723 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3725 svm_fifo_size (session->rx_fifo) :
3726 vcm->cfg.rx_fifo_size);
3727 *buflen = sizeof (u32);
3729 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3730 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3736 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3737 if (buffer && buflen && (*buflen == sizeof (u32)))
3740 session->rcvbuf_size = *(u32 *) buffer;
3741 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3742 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3749 case VPPCOM_ATTR_GET_REUSEADDR:
3750 if (buffer && buflen && (*buflen >= sizeof (int)))
3753 *(int *) buffer = vcl_session_has_attr (session,
3754 VCL_SESS_ATTR_REUSEADDR);
3755 *buflen = sizeof (int);
3757 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3758 *(int *) buffer, *buflen);
3764 case VPPCOM_ATTR_SET_REUSEADDR:
3765 if (buffer && buflen && (*buflen == sizeof (int)) &&
3766 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3769 if (*(int *) buffer)
3770 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3772 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3774 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3775 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3782 case VPPCOM_ATTR_GET_REUSEPORT:
3783 if (buffer && buflen && (*buflen >= sizeof (int)))
3786 *(int *) buffer = vcl_session_has_attr (session,
3787 VCL_SESS_ATTR_REUSEPORT);
3788 *buflen = sizeof (int);
3790 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3791 *(int *) buffer, *buflen);
3797 case VPPCOM_ATTR_SET_REUSEPORT:
3798 if (buffer && buflen && (*buflen == sizeof (int)) &&
3799 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3802 if (*(int *) buffer)
3803 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3805 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3807 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3808 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3815 case VPPCOM_ATTR_GET_BROADCAST:
3816 if (buffer && buflen && (*buflen >= sizeof (int)))
3819 *(int *) buffer = vcl_session_has_attr (session,
3820 VCL_SESS_ATTR_BROADCAST);
3821 *buflen = sizeof (int);
3823 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3824 *(int *) buffer, *buflen);
3830 case VPPCOM_ATTR_SET_BROADCAST:
3831 if (buffer && buflen && (*buflen == sizeof (int)))
3834 if (*(int *) buffer)
3835 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3837 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3839 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3840 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3847 case VPPCOM_ATTR_GET_V6ONLY:
3848 if (buffer && buflen && (*buflen >= sizeof (int)))
3851 *(int *) buffer = vcl_session_has_attr (session,
3852 VCL_SESS_ATTR_V6ONLY);
3853 *buflen = sizeof (int);
3855 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3856 *(int *) buffer, *buflen);
3862 case VPPCOM_ATTR_SET_V6ONLY:
3863 if (buffer && buflen && (*buflen == sizeof (int)))
3866 if (*(int *) buffer)
3867 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3869 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3871 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3872 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3879 case VPPCOM_ATTR_GET_KEEPALIVE:
3880 if (buffer && buflen && (*buflen >= sizeof (int)))
3883 *(int *) buffer = vcl_session_has_attr (session,
3884 VCL_SESS_ATTR_KEEPALIVE);
3885 *buflen = sizeof (int);
3887 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3888 *(int *) buffer, *buflen);
3894 case VPPCOM_ATTR_SET_KEEPALIVE:
3895 if (buffer && buflen && (*buflen == sizeof (int)))
3898 if (*(int *) buffer)
3899 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3901 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3903 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3904 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3911 case VPPCOM_ATTR_GET_TCP_NODELAY:
3912 if (buffer && buflen && (*buflen >= sizeof (int)))
3915 *(int *) buffer = vcl_session_has_attr (session,
3916 VCL_SESS_ATTR_TCP_NODELAY);
3917 *buflen = sizeof (int);
3919 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3920 *(int *) buffer, *buflen);
3926 case VPPCOM_ATTR_SET_TCP_NODELAY:
3927 if (buffer && buflen && (*buflen == sizeof (int)))
3930 if (*(int *) buffer)
3931 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3933 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3935 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3936 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3943 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3944 if (buffer && buflen && (*buflen >= sizeof (int)))
3947 *(int *) buffer = vcl_session_has_attr (session,
3948 VCL_SESS_ATTR_TCP_KEEPIDLE);
3949 *buflen = sizeof (int);
3951 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3952 *(int *) buffer, *buflen);
3958 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3959 if (buffer && buflen && (*buflen == sizeof (int)))
3962 if (*(int *) buffer)
3963 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3965 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3967 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3968 vcl_session_has_attr (session,
3969 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3975 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3976 if (buffer && buflen && (*buflen >= sizeof (int)))
3979 *(int *) buffer = vcl_session_has_attr (session,
3980 VCL_SESS_ATTR_TCP_KEEPINTVL);
3981 *buflen = sizeof (int);
3983 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3984 *(int *) buffer, *buflen);
3990 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3991 if (buffer && buflen && (*buflen == sizeof (int)))
3994 if (*(int *) buffer)
3995 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3997 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3999 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
4000 vcl_session_has_attr (session,
4001 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
4007 case VPPCOM_ATTR_GET_TCP_USER_MSS:
4008 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4014 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4015 tea.mss = *(u32 *) buffer;
4016 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
4017 rv = VPPCOM_ENOPROTOOPT;
4021 *(u32 *) buffer = tea.mss;
4022 *buflen = sizeof (int);
4025 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
4028 case VPPCOM_ATTR_SET_TCP_USER_MSS:
4029 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4035 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4036 tea.mss = *(u32 *) buffer;
4037 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
4038 rv = VPPCOM_ENOPROTOOPT;
4040 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
4044 case VPPCOM_ATTR_SET_CONNECTED:
4045 session->flags |= VCL_SESSION_F_CONNECTED;
4048 case VPPCOM_ATTR_SET_CKPAIR:
4049 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
4050 !vcl_session_has_crypto (session))
4055 if (!session->ext_config)
4057 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_CRYPTO,
4058 sizeof (transport_endpt_ext_cfg_t));
4060 else if (session->ext_config->type != TRANSPORT_ENDPT_EXT_CFG_CRYPTO)
4066 session->ext_config->crypto.ckpair_index = *(uint32_t *) buffer;
4069 case VPPCOM_ATTR_SET_VRF:
4070 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4075 session->vrf = *(u32 *) buffer;
4078 case VPPCOM_ATTR_GET_VRF:
4079 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4084 *(u32 *) buffer = session->vrf;
4085 *buflen = sizeof (u32);
4088 case VPPCOM_ATTR_GET_DOMAIN:
4089 if (!(buffer && buflen && (*buflen >= sizeof (int))))
4095 if (session->transport.is_ip4)
4096 *(int *) buffer = AF_INET;
4098 *(int *) buffer = AF_INET6;
4099 *buflen = sizeof (int);
4101 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
4105 case VPPCOM_ATTR_SET_ENDPT_EXT_CFG:
4106 if (!(buffer && buflen && (*buflen > 0)))
4111 if (session->ext_config)
4116 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_NONE,
4117 *buflen + sizeof (u32));
4118 clib_memcpy (session->ext_config->data, buffer, *buflen);
4119 session->ext_config->len = *buflen;
4121 case VPPCOM_ATTR_SET_IP_PKTINFO:
4122 if (buffer && buflen && (*buflen == sizeof (int)) &&
4123 !vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO))
4125 if (*(int *) buffer)
4126 vcl_session_set_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4128 vcl_session_clear_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4130 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d",
4131 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO),
4138 case VPPCOM_ATTR_GET_IP_PKTINFO:
4139 if (buffer && buflen && (*buflen >= sizeof (int)))
4142 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4143 *buflen = sizeof (int);
4145 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d", *(int *) buffer,
4161 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
4162 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4164 vcl_worker_t *wrk = vcl_worker_get_current ();
4165 vcl_session_t *session;
4169 rv = vppcom_session_read (session_handle, buffer, buflen);
4170 else if (flags & MSG_PEEK)
4171 rv = vppcom_session_peek (session_handle, buffer, buflen);
4174 VDBG (0, "Unsupport flags for recvfrom %d", flags);
4175 return VPPCOM_EAFNOSUPPORT;
4180 session = vcl_session_get_w_handle (wrk, session_handle);
4181 if (session->transport.is_ip4)
4182 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
4183 sizeof (ip4_address_t));
4185 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
4186 sizeof (ip6_address_t));
4187 ep->is_ip4 = session->transport.is_ip4;
4188 ep->port = session->transport.rmt_port;
4195 vcl_handle_ep_app_tlvs (vcl_session_t *s, vppcom_endpt_t *ep)
4197 vppcom_endpt_tlv_t *tlv = ep->app_tlvs;
4201 switch (tlv->data_type)
4203 case VCL_UDP_SEGMENT:
4204 s->gso_size = *(u16 *) tlv->data;
4206 case VCL_IP_PKTINFO:
4207 clib_memcpy_fast (&s->transport.lcl_ip, (ip4_address_t *) tlv->data,
4208 sizeof (ip4_address_t));
4211 VDBG (0, "Ignorning unsupported app tlv %u", tlv->data_type);
4214 tlv = VCL_EP_NEXT_APP_TLV (ep, tlv);
4220 vppcom_session_sendto (uint32_t session_handle, void *buffer,
4221 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4223 vcl_worker_t *wrk = vcl_worker_get_current ();
4226 s = vcl_session_get_w_handle (wrk, session_handle);
4227 if (PREDICT_FALSE (!s))
4228 return VPPCOM_EBADFD;
4232 if (!vcl_session_is_cl (s))
4233 return VPPCOM_EINVAL;
4235 s->transport.is_ip4 = ep->is_ip4;
4236 s->transport.rmt_port = ep->port;
4237 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
4240 vcl_handle_ep_app_tlvs (s, ep);
4242 /* Session not connected/bound in vpp. Create it by 'connecting' it */
4243 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
4245 u32 session_index = s->session_index;
4246 f64 timeout = vcm->cfg.session_timeout;
4249 vcl_send_session_connect (wrk, s);
4250 rv = vppcom_wait_for_session_state_change (session_index,
4255 s = vcl_session_get (wrk, session_index);
4261 // TBD check the flags and do the right thing
4262 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
4265 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
4266 s->is_dgram ? 1 : 0));
4270 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
4272 vcl_worker_t *wrk = vcl_worker_get_current ();
4273 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
4274 u32 i, keep_trying = 1;
4275 svm_msg_q_msg_t msg;
4279 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
4282 return VPPCOM_EFAULT;
4286 vcl_session_t *session;
4288 /* Dequeue all events and drop all unhandled io events */
4289 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
4291 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
4292 vcl_handle_mq_event (wrk, e);
4293 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
4295 vec_reset_length (wrk->unhandled_evts_vector);
4297 for (i = 0; i < n_sids; i++)
4299 session = vcl_session_get (wrk, vp[i].sh);
4302 vp[i].revents = POLLHUP;
4309 if (POLLIN & vp[i].events)
4311 rv = vcl_session_read_ready (session);
4314 vp[i].revents |= POLLIN;
4321 case VPPCOM_ECONNRESET:
4322 vp[i].revents = POLLHUP;
4326 vp[i].revents = POLLERR;
4333 if (POLLOUT & vp[i].events)
4335 rv = vcl_session_write_ready (session);
4338 vp[i].revents |= POLLOUT;
4345 case VPPCOM_ECONNRESET:
4346 vp[i].revents = POLLHUP;
4350 vp[i].revents = POLLERR;
4357 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
4359 vp[i].revents = POLLNVAL;
4363 if (wait_for_time != -1)
4364 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
4366 while ((num_ev == 0) && keep_trying);
4372 vppcom_mq_epoll_fd (void)
4374 vcl_worker_t *wrk = vcl_worker_get_current ();
4375 return wrk->mqs_epfd;
4379 vppcom_session_index (vcl_session_handle_t session_handle)
4381 return session_handle & 0xFFFFFF;
4385 vppcom_session_worker (vcl_session_handle_t session_handle)
4387 return session_handle >> 24;
4391 vppcom_worker_register (void)
4393 if (!vcl_worker_alloc_and_init ())
4394 return VPPCOM_EEXIST;
4396 if (vcl_worker_register_with_vpp ())
4397 return VPPCOM_EEXIST;
4403 vppcom_worker_unregister (void)
4405 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
4406 vcl_set_worker_index (~0);
4410 vppcom_worker_index_set (int index)
4412 vcl_set_worker_index (index);
4416 vppcom_worker_index (void)
4418 return vcl_get_worker_index ();
4422 vppcom_worker_mqs_epfd (void)
4424 vcl_worker_t *wrk = vcl_worker_get_current ();
4425 if (!vcm->cfg.use_mq_eventfd)
4427 return wrk->mqs_epfd;
4431 vppcom_session_is_connectable_listener (uint32_t session_handle)
4433 vcl_session_t *session;
4434 vcl_worker_t *wrk = vcl_worker_get_current ();
4435 session = vcl_session_get_w_handle (wrk, session_handle);
4437 return VPPCOM_EBADFD;
4438 return vcl_session_is_connectable_listener (wrk, session);
4442 vppcom_session_listener (uint32_t session_handle)
4444 vcl_worker_t *wrk = vcl_worker_get_current ();
4445 vcl_session_t *listen_session, *session;
4446 session = vcl_session_get_w_handle (wrk, session_handle);
4448 return VPPCOM_EBADFD;
4449 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
4450 return VPPCOM_EBADFD;
4451 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4452 if (!listen_session)
4453 return VPPCOM_EBADFD;
4454 return vcl_session_handle (listen_session);
4458 vppcom_session_n_accepted (uint32_t session_handle)
4460 vcl_worker_t *wrk = vcl_worker_get_current ();
4461 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4463 return VPPCOM_EBADFD;
4464 return session->n_accepted_sessions;
4468 vppcom_proto_str (vppcom_proto_t proto)
4470 char const *proto_str;
4474 case VPPCOM_PROTO_TCP:
4477 case VPPCOM_PROTO_UDP:
4480 case VPPCOM_PROTO_TLS:
4483 case VPPCOM_PROTO_QUIC:
4486 case VPPCOM_PROTO_DTLS:
4489 case VPPCOM_PROTO_SRTP:
4493 proto_str = "UNKNOWN";
4500 vppcom_retval_str (int retval)
4511 st = "VPPCOM_EAGAIN";
4515 st = "VPPCOM_EFAULT";
4519 st = "VPPCOM_ENOMEM";
4523 st = "VPPCOM_EINVAL";
4527 st = "VPPCOM_EBADFD";
4530 case VPPCOM_EAFNOSUPPORT:
4531 st = "VPPCOM_EAFNOSUPPORT";
4534 case VPPCOM_ECONNABORTED:
4535 st = "VPPCOM_ECONNABORTED";
4538 case VPPCOM_ECONNRESET:
4539 st = "VPPCOM_ECONNRESET";
4542 case VPPCOM_ENOTCONN:
4543 st = "VPPCOM_ENOTCONN";
4546 case VPPCOM_ECONNREFUSED:
4547 st = "VPPCOM_ECONNREFUSED";
4550 case VPPCOM_ETIMEDOUT:
4551 st = "VPPCOM_ETIMEDOUT";
4554 case VPPCOM_EADDRINUSE:
4555 st = "VPPCOM_EADDRINUSE";
4559 st = "UNKNOWN_STATE";
4567 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4569 if (vcm->cfg.vpp_app_socket_api)
4570 return vcl_sapi_add_cert_key_pair (ckpair);
4572 return vcl_bapi_add_cert_key_pair (ckpair);
4576 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4578 if (vcm->cfg.vpp_app_socket_api)
4579 return vcl_sapi_del_cert_key_pair (ckpair_index);
4581 return vcl_bapi_del_cert_key_pair (ckpair_index);
4585 vppcom_session_get_error (uint32_t session_handle)
4587 vcl_worker_t *wrk = vcl_worker_get_current ();
4588 vcl_session_t *session = 0;
4590 session = vcl_session_get_w_handle (wrk, session_handle);
4592 return VPPCOM_EBADFD;
4594 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
4596 VWRN ("epoll session %u! will not have connect", session->session_index);
4597 return VPPCOM_EBADFD;
4600 if (session->vpp_error == SESSION_E_PORTINUSE)
4601 return VPPCOM_EADDRINUSE;
4602 else if (session->vpp_error == SESSION_E_REFUSED)
4603 return VPPCOM_ECONNREFUSED;
4604 else if (session->vpp_error != SESSION_E_NONE)
4605 return VPPCOM_EFAULT;
4611 vppcom_worker_is_detached (void)
4613 vcl_worker_t *wrk = vcl_worker_get_current ();
4615 if (!vcm->cfg.use_mq_eventfd)
4616 return VPPCOM_ENOTSUP;
4618 return wrk->api_client_handle == ~0;
4622 * fd.io coding-style-patch-verification: ON
4625 * eval: (c-set-style "gnu")