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 session->listener_index = listen_session->session_index;
365 listen_session->n_accepted_sessions++;
367 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
369 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
370 session->vpp_handle, 0);
372 return session->session_index;
375 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
376 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
377 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
378 VNET_API_ERROR_INVALID_ARGUMENT);
379 vcl_session_free (wrk, session);
380 return VCL_INVALID_SESSION_INDEX;
384 vcl_session_connected_handler (vcl_worker_t * wrk,
385 session_connected_msg_t * mp)
387 vcl_session_t *session = 0;
390 session_index = mp->context;
391 session = vcl_session_get (wrk, session_index);
392 if (PREDICT_FALSE (!session))
394 VERR ("vpp handle 0x%llx has no session index (%u)!", mp->handle,
396 /* Should not happen but if it does, force vpp session cleanup */
397 vcl_session_t tmp_session = {
398 .vpp_handle = mp->handle,
401 vcl_segment_attach_session (
402 mp->segment_handle, mp->server_rx_fifo, mp->server_tx_fifo,
403 mp->vpp_event_queue_address, mp->mq_index, 0, session);
404 if (tmp_session.vpp_evt_q)
405 vcl_send_session_disconnect (wrk, &tmp_session);
406 return VCL_INVALID_SESSION_INDEX;
411 VDBG (0, "session %u: connect failed! %U", session_index,
412 format_session_error, mp->retval);
413 session->session_state = VCL_STATE_DETACHED;
414 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
415 session->vpp_error = mp->retval;
416 return session_index;
419 session->vpp_handle = mp->handle;
421 /* Add to lookup table. Even if something fails, session cannot be
422 * cleaned up prior to notifying vpp and going through the cleanup
423 * "procedure" see @ref vcl_session_cleanup_handler */
424 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
426 if (vcl_segment_attach_session (
427 mp->segment_handle, mp->server_rx_fifo, mp->server_tx_fifo,
428 mp->vpp_event_queue_address, mp->mq_index, 0, session))
430 VDBG (0, "session %u [0x%llx]: failed to attach fifos",
431 session->session_index, session->vpp_handle);
432 session->session_state = VCL_STATE_UPDATED;
433 vcl_send_session_disconnect (wrk, session);
434 return session_index;
439 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
440 mp->ct_tx_fifo, (uword) ~0, ~0, 1,
443 VDBG (0, "session %u [0x%llx]: failed to attach ct fifos",
444 session->session_index, session->vpp_handle);
445 session->session_state = VCL_STATE_UPDATED;
446 vcl_send_session_disconnect (wrk, session);
447 return session_index;
451 session->transport.is_ip4 = mp->lcl.is_ip4;
452 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
453 sizeof (session->transport.lcl_ip));
454 session->transport.lcl_port = mp->lcl.port;
456 /* Application closed session before connect reply */
457 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
458 && session->session_state == VCL_STATE_CLOSED)
459 vcl_send_session_disconnect (wrk, session);
461 session->session_state = VCL_STATE_READY;
463 VDBG (0, "session %u [0x%llx] connected local: %U:%u remote %U:%u",
464 session->session_index, session->vpp_handle, vcl_format_ip46_address,
465 &session->transport.lcl_ip,
466 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
467 clib_net_to_host_u16 (session->transport.lcl_port),
468 vcl_format_ip46_address, &session->transport.rmt_ip,
469 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
470 clib_net_to_host_u16 (session->transport.rmt_port));
472 return session_index;
476 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
478 vcl_session_msg_t *accepted_msg;
481 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
483 accepted_msg = &session->accept_evts_fifo[i];
484 if (accepted_msg->accepted_msg.handle == handle)
486 accepted_msg->flags |= flags;
494 vcl_session_reset_handler (vcl_worker_t * wrk,
495 session_reset_msg_t * reset_msg)
497 vcl_session_t *session;
500 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
501 session = vcl_session_get (wrk, sid);
504 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
505 return VCL_INVALID_SESSION_INDEX;
508 /* Caught a reset before actually accepting the session */
509 if (session->session_state == VCL_STATE_LISTEN)
512 if (!vcl_flag_accepted_session (session, reset_msg->handle,
513 VCL_ACCEPTED_F_RESET))
514 VDBG (0, "session was not accepted!");
515 return VCL_INVALID_SESSION_INDEX;
518 if (session->session_state != VCL_STATE_CLOSED)
519 session->session_state = VCL_STATE_DISCONNECT;
521 session->flags |= (VCL_SESSION_F_RD_SHUTDOWN | VCL_SESSION_F_WR_SHUTDOWN);
522 VDBG (0, "session %u [0x%llx]: reset", sid, reset_msg->handle);
527 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
529 vcl_session_t *session;
530 u32 sid = mp->context;
532 session = vcl_session_get (wrk, sid);
535 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
536 format_session_error, mp->retval);
539 session->session_state = VCL_STATE_DETACHED;
540 session->vpp_handle = mp->handle;
545 VDBG (0, "session %u [0x%llx]: Invalid session index!", sid,
547 return VCL_INVALID_SESSION_INDEX;
551 session->vpp_handle = mp->handle;
552 session->transport.is_ip4 = mp->lcl_is_ip4;
553 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
554 sizeof (ip46_address_t));
555 session->transport.lcl_port = mp->lcl_port;
556 vcl_session_table_add_listener (wrk, mp->handle, sid);
557 session->session_state = VCL_STATE_LISTEN;
558 session->flags &= ~VCL_SESSION_F_PENDING_LISTEN;
560 if (vcl_session_is_cl (session))
562 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
563 mp->tx_fifo, mp->vpp_evt_q, mp->mq_index,
566 VDBG (0, "session %u [0x%llx]: failed to attach fifos",
567 session->session_index, session->vpp_handle);
568 session->session_state = VCL_STATE_DETACHED;
569 return VCL_INVALID_SESSION_INDEX;
573 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
578 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
580 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
583 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
586 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
589 if (s->session_state != VCL_STATE_DISCONNECT)
591 /* Connected udp listener */
592 if (s->session_type == VPPCOM_PROTO_UDP
593 && s->session_state == VCL_STATE_CLOSED)
596 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
601 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
602 s->session_index, mp->handle, format_session_error, mp->retval);
604 if (mp->context != wrk->wrk_index)
605 VDBG (0, "wrong context");
607 vcl_session_table_del_vpp_handle (wrk, mp->handle);
608 vcl_session_free (wrk, s);
612 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
614 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
618 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
621 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
625 /* Only validate if a value is provided */
626 if (mp->segment_handle != SESSION_INVALID_HANDLE)
628 fs_index = vcl_segment_table_lookup (mp->segment_handle);
629 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
631 VDBG (0, "segment %lx for session %u is not mounted!",
632 mp->segment_handle, s->session_index);
633 s->session_state = VCL_STATE_DETACHED;
638 s->vpp_handle = mp->new_handle;
640 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
641 mp->vpp_thread_index, &s->vpp_evt_q);
643 vcl_session_table_del_vpp_handle (wrk, mp->handle);
644 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
646 /* Generate new tx event if we have outstanding data */
647 if (svm_fifo_has_event (s->tx_fifo))
648 app_send_io_evt_to_vpp (s->vpp_evt_q,
649 s->tx_fifo->shr->master_session_index,
650 SESSION_IO_EVT_TX, SVM_Q_WAIT);
652 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
653 mp->vpp_thread_index, mp->new_handle);
656 static vcl_session_t *
657 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
659 vcl_session_msg_t *vcl_msg;
660 vcl_session_t *session;
662 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
663 if (PREDICT_FALSE (session != 0))
664 VWRN ("session overlap handle %lu state %u!", msg->handle,
665 session->session_state);
667 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
670 VERR ("couldn't find listen session: listener handle %llx",
671 msg->listener_handle);
675 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
677 vcl_msg->accepted_msg = *msg;
678 /* Session handle points to listener until fully accepted by app */
679 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
684 static vcl_session_t *
685 vcl_session_disconnected_handler (vcl_worker_t * wrk,
686 session_disconnected_msg_t * msg)
688 vcl_session_t *session;
690 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
693 VWRN ("request to disconnect unknown handle 0x%llx", msg->handle);
697 /* Late disconnect notification on a session that has been closed */
698 if (session->session_state == VCL_STATE_CLOSED)
701 /* Caught a disconnect before actually accepting the session */
702 if (session->session_state == VCL_STATE_LISTEN)
704 if (!vcl_flag_accepted_session (session, msg->handle,
705 VCL_ACCEPTED_F_CLOSED))
706 VDBG (0, "session was not accepted!");
710 /* If not already reset change state */
711 if (session->session_state != VCL_STATE_DISCONNECT)
712 session->session_state = VCL_STATE_VPP_CLOSING;
718 vppcom_session_shutdown (uint32_t session_handle, int how)
720 vcl_worker_t *wrk = vcl_worker_get_current ();
721 vcl_session_t *session;
722 vcl_session_state_t state;
725 session = vcl_session_get_w_handle (wrk, session_handle);
726 if (PREDICT_FALSE (!session))
727 return VPPCOM_EBADFD;
729 vpp_handle = session->vpp_handle;
730 state = session->session_state;
732 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
733 vpp_handle, state, vcl_session_state_str (state));
735 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
737 VDBG (0, "ERROR: Cannot shutdown a listen socket!");
738 return VPPCOM_EBADFD;
741 if (how == SHUT_RD || how == SHUT_RDWR)
743 session->flags |= VCL_SESSION_F_RD_SHUTDOWN;
747 session->flags |= VCL_SESSION_F_WR_SHUTDOWN;
749 if (PREDICT_TRUE (state == VCL_STATE_READY))
751 VDBG (1, "session %u [0x%llx]: sending shutdown...",
752 session->session_index, vpp_handle);
754 vcl_send_session_shutdown (wrk, session);
761 vppcom_session_disconnect (u32 session_handle)
763 vcl_worker_t *wrk = vcl_worker_get_current ();
764 vcl_session_t *session, *listen_session;
765 vcl_session_state_t state;
768 session = vcl_session_get_w_handle (wrk, session_handle);
770 return VPPCOM_EBADFD;
772 vpp_handle = session->vpp_handle;
773 state = session->session_state;
775 VDBG (1, "session %u [0x%llx]: disconnecting state (%s)",
776 session->session_index, vpp_handle, vcl_session_state_str (state));
778 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
780 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
781 return VPPCOM_EBADFD;
784 if (state == VCL_STATE_VPP_CLOSING)
786 vcl_send_session_disconnected_reply (wrk, session, 0);
787 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
788 session->session_index, vpp_handle);
792 /* Session doesn't have an event queue yet. Probably a non-blocking
793 * connect. Wait for the reply */
794 if (PREDICT_FALSE (!session->vpp_evt_q))
797 VDBG (1, "session %u [0x%llx]: sending disconnect",
798 session->session_index, vpp_handle);
799 vcl_send_session_disconnect (wrk, session);
802 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
804 listen_session = vcl_session_get (wrk, session->listener_index);
806 listen_session->n_accepted_sessions--;
813 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
815 session_cleanup_msg_t *msg;
816 vcl_session_t *session;
818 msg = (session_cleanup_msg_t *) data;
819 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
822 VWRN ("disconnect confirmed for unknown handle 0x%llx", msg->handle);
826 if (msg->type == SESSION_CLEANUP_TRANSPORT)
828 /* Transport was cleaned up before we confirmed close. Probably the
829 * app is still waiting for some data that cannot be delivered.
830 * Confirm close to make sure everything is cleaned up.
831 * Move to undetermined state to ensure that the session is not
832 * removed before both vpp and the app cleanup.
833 * - If the app closes first, the session is moved to CLOSED state
834 * and the session cleanup notification from vpp removes the
836 * - If vpp cleans up the session first, the session is moved to
837 * DETACHED state lower and subsequently the close from the app
840 if (session->session_state == VCL_STATE_VPP_CLOSING)
842 vppcom_session_disconnect (vcl_session_handle (session));
843 session->session_state = VCL_STATE_UPDATED;
845 else if (session->session_state == VCL_STATE_DISCONNECT)
847 vcl_send_session_reset_reply (wrk, session, 0);
848 session->session_state = VCL_STATE_UPDATED;
853 /* VPP will reuse the handle so clean it up now */
854 vcl_session_table_del_vpp_handle (wrk, msg->handle);
856 /* App did not close the connection yet so don't free it. */
857 if (session->session_state != VCL_STATE_CLOSED)
859 VDBG (0, "session %u: app did not close", session->session_index);
860 session->session_state = VCL_STATE_DETACHED;
861 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
865 /* Session probably tracked with epoll, disconnect not yet handled and
866 * 1) both transport and session cleanup completed 2) app closed. Wait
867 * until message is drained to free the session.
868 * See @ref vcl_handle_mq_event */
869 if (session->flags & VCL_SESSION_F_PENDING_DISCONNECT)
871 session->flags |= VCL_SESSION_F_PENDING_FREE;
875 vcl_session_free (wrk, session);
879 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
881 session_req_worker_update_msg_t *msg;
884 msg = (session_req_worker_update_msg_t *) data;
885 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
889 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
893 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
895 session_worker_update_reply_msg_t *msg;
898 msg = (session_worker_update_reply_msg_t *) data;
899 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
902 VDBG (0, "unknown handle 0x%llx", msg->handle);
908 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
909 msg->tx_fifo, (uword) ~0, ~0, 0, s))
911 VDBG (0, "failed to attach fifos for %u", s->session_index);
915 s->session_state = VCL_STATE_UPDATED;
917 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
918 s->vpp_handle, wrk->wrk_index);
922 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
925 if (vcm->cfg.vpp_app_socket_api)
926 return vcl_sapi_recv_fds (wrk, fds, n_fds);
928 return vcl_bapi_recv_fds (wrk, fds, n_fds);
932 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
934 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
935 session_app_add_segment_msg_t *msg;
939 msg = (session_app_add_segment_msg_t *) data;
943 vcl_api_recv_fd (wrk, &fd, 1);
944 seg_type = SSVM_SEGMENT_MEMFD;
947 segment_handle = msg->segment_handle;
948 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
950 clib_warning ("invalid segment handle");
954 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
957 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
961 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
966 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
968 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
969 vcl_segment_detach (msg->segment_handle);
970 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
974 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
976 if (!vcm->wrk_rpc_fn)
979 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
983 vcl_session_transport_attr_reply_handler (vcl_worker_t *wrk, void *data)
985 session_transport_attr_reply_msg_t *mp;
987 if (!wrk->session_attr_op)
990 mp = (session_transport_attr_reply_msg_t *) data;
992 wrk->session_attr_op_rv = mp->retval;
993 wrk->session_attr_op = 0;
994 wrk->session_attr_rv = mp->attr;
998 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
1000 session_disconnected_msg_t *disconnected_msg;
1001 session_connected_msg_t *connected_msg;
1002 session_reset_msg_t *reset_msg;
1003 session_event_t *ecpy;
1007 switch (e->event_type)
1009 case SESSION_IO_EVT_RX:
1010 case SESSION_IO_EVT_TX:
1011 s = vcl_session_get (wrk, e->session_index);
1012 if (!s || !vcl_session_is_open (s))
1014 vec_add1 (wrk->unhandled_evts_vector, *e);
1016 case SESSION_CTRL_EVT_BOUND:
1017 /* We can only wait for only one listen so not postponed */
1018 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1020 case SESSION_CTRL_EVT_ACCEPTED:
1021 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1022 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1024 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1026 ecpy->postponed = 1;
1027 ecpy->session_index = s->session_index;
1030 case SESSION_CTRL_EVT_CONNECTED:
1031 connected_msg = (session_connected_msg_t *) e->data;
1032 sid = vcl_session_connected_handler (wrk, connected_msg);
1033 if (!(s = vcl_session_get (wrk, sid)))
1035 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1037 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1039 ecpy->postponed = 1;
1040 ecpy->session_index = s->session_index;
1043 case SESSION_CTRL_EVT_DISCONNECTED:
1044 disconnected_msg = (session_disconnected_msg_t *) e->data;
1045 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1047 if (s->session_state == VCL_STATE_CLOSED)
1049 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1051 s->session_state = VCL_STATE_VPP_CLOSING;
1052 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1053 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1055 ecpy->postponed = 1;
1056 ecpy->session_index = s->session_index;
1059 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1061 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1064 case SESSION_CTRL_EVT_RESET:
1065 reset_msg = (session_reset_msg_t *) e->data;
1066 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1068 if (s->session_state == VCL_STATE_CLOSED)
1070 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1072 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1073 s->session_state = VCL_STATE_DISCONNECT;
1074 s->flags |= (VCL_SESSION_F_RD_SHUTDOWN | VCL_SESSION_F_WR_SHUTDOWN);
1075 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1077 ecpy->postponed = 1;
1078 ecpy->session_index = s->session_index;
1081 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1083 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1084 vcl_session_unlisten_reply_handler (wrk, e->data);
1086 case SESSION_CTRL_EVT_MIGRATED:
1087 vcl_session_migrated_handler (wrk, e->data);
1089 case SESSION_CTRL_EVT_CLEANUP:
1090 vcl_session_cleanup_handler (wrk, e->data);
1092 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1093 vcl_session_req_worker_update_handler (wrk, e->data);
1095 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1096 vcl_session_worker_update_reply_handler (wrk, e->data);
1098 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1099 vcl_session_app_add_segment_handler (wrk, e->data);
1101 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1102 vcl_session_app_del_segment_handler (wrk, e->data);
1104 case SESSION_CTRL_EVT_APP_WRK_RPC:
1105 vcl_worker_rpc_handler (wrk, e->data);
1107 case SESSION_CTRL_EVT_TRANSPORT_ATTR_REPLY:
1108 vcl_session_transport_attr_reply_handler (wrk, e->data);
1111 clib_warning ("unhandled %u", e->event_type);
1117 vppcom_wait_for_session_state_change (u32 session_index,
1118 vcl_session_state_t state,
1121 vcl_worker_t *wrk = vcl_worker_get_current ();
1122 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1123 vcl_session_t *volatile session;
1124 svm_msg_q_msg_t msg;
1129 session = vcl_session_get (wrk, session_index);
1130 if (PREDICT_FALSE (!session))
1132 return VPPCOM_EBADFD;
1134 if (session->session_state == state)
1138 if (session->session_state == VCL_STATE_DETACHED)
1140 return VPPCOM_ECONNREFUSED;
1143 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1148 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1149 vcl_handle_mq_event (wrk, e);
1150 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1152 while (clib_time_now (&wrk->clib_time) < timeout);
1154 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1155 vcl_session_state_str (state));
1156 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1158 return VPPCOM_ETIMEDOUT;
1162 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1164 vcl_session_state_t state;
1168 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1171 vec_foreach (sip, wrk->pending_session_wrk_updates)
1173 s = vcl_session_get (wrk, *sip);
1174 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1175 state = s->session_state;
1176 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1178 s->session_state = state;
1180 vec_reset_length (wrk->pending_session_wrk_updates);
1184 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1186 svm_msg_q_msg_t *msg;
1191 mq = wrk->app_event_queue;
1192 vcl_mq_dequeue_batch (wrk, mq, ~0);
1194 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1196 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1197 e = svm_msg_q_msg_data (mq, msg);
1198 vcl_handle_mq_event (wrk, e);
1199 svm_msg_q_free_msg (mq, msg);
1201 vec_reset_length (wrk->mq_msg_vector);
1202 vcl_handle_pending_wrk_updates (wrk);
1206 vcl_flush_mq_events (void)
1208 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1212 vppcom_session_unbind (u32 session_handle)
1214 vcl_worker_t *wrk = vcl_worker_get_current ();
1215 session_accepted_msg_t *accepted_msg;
1216 vcl_session_t *session = 0;
1217 vcl_session_msg_t *evt;
1219 session = vcl_session_get_w_handle (wrk, session_handle);
1221 return VPPCOM_EBADFD;
1223 /* Flush pending accept events, if any */
1224 while (clib_fifo_elts (session->accept_evts_fifo))
1226 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1227 accepted_msg = &evt->accepted_msg;
1228 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1229 vcl_send_session_accepted_reply (session->vpp_evt_q,
1230 accepted_msg->context,
1231 accepted_msg->handle, -1);
1233 clib_fifo_free (session->accept_evts_fifo);
1235 vcl_send_session_unlisten (wrk, session);
1237 VDBG (0, "session %u [0x%llx]: sending unbind!", session->session_index,
1238 session->vpp_handle);
1239 vcl_evt (VCL_EVT_UNBIND, session);
1241 session->vpp_handle = ~0;
1242 session->session_state = VCL_STATE_DISCONNECT;
1250 * Notify vpp of the disconnect and mark the worker as free. If we're the
1251 * last worker, do a full cleanup otherwise, since we're probably a forked
1252 * child, avoid syscalls as much as possible. We might've lost privileges.
1255 vppcom_app_exit (void)
1257 if (!pool_elts (vcm->workers))
1259 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1260 vcl_set_worker_index (~0);
1261 vcl_elog_stop (vcm);
1265 vcl_api_attach (void)
1267 if (vcm->cfg.vpp_app_socket_api)
1268 return vcl_sapi_attach ();
1270 return vcl_bapi_attach ();
1274 vcl_is_first_reattach_to_execute ()
1276 if (vcm->reattach_count == 0)
1283 vcl_set_reattach_counter ()
1285 ++vcm->reattach_count;
1287 if (vcm->reattach_count == vec_len (vcm->workers))
1288 vcm->reattach_count = 0;
1292 * Reattach vcl to vpp after it has previously been disconnected.
1294 * The logic should be:
1295 * - first worker to hit `vcl_api_retry_attach` should attach to vpp,
1296 * to reproduce the `vcl_api_attach` in `vppcom_app_create`.
1297 * - the rest of the workers should `reproduce vcl_worker_register_with_vpp`
1298 * from `vppcom_worker_register` since they were already allocated.
1302 vcl_api_retry_attach (vcl_worker_t *wrk)
1306 clib_spinlock_lock (&vcm->workers_lock);
1307 if (vcl_is_first_reattach_to_execute ())
1309 if (vcl_api_attach ())
1311 clib_spinlock_unlock (&vcm->workers_lock);
1314 vcl_set_reattach_counter ();
1315 clib_spinlock_unlock (&vcm->workers_lock);
1319 vcl_set_reattach_counter ();
1320 clib_spinlock_unlock (&vcm->workers_lock);
1321 vcl_worker_register_with_vpp ();
1324 /* Treat listeners as configuration that needs to be re-added to vpp */
1325 pool_foreach (s, wrk->sessions)
1327 if (s->flags & VCL_SESSION_F_IS_VEP)
1329 if (s->session_state == VCL_STATE_LISTEN_NO_MQ)
1330 vppcom_session_listen (vcl_session_handle (s), 10);
1332 VDBG (0, "internal error: unexpected state %d", s->session_state);
1337 vcl_api_handle_disconnect (vcl_worker_t *wrk)
1339 wrk->api_client_handle = ~0;
1340 vcl_worker_detach_sessions (wrk);
1344 vcl_api_detach (vcl_worker_t * wrk)
1346 if (wrk->api_client_handle == ~0)
1349 vcl_send_app_detach (wrk);
1351 if (vcm->cfg.vpp_app_socket_api)
1352 return vcl_sapi_detach (wrk);
1354 return vcl_bapi_disconnect_from_vpp ();
1358 * VPPCOM Public API functions
1361 vppcom_app_create (const char *app_name)
1363 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1368 VDBG (1, "already initialized");
1369 return VPPCOM_EEXIST;
1373 vppcom_cfg (&vcm->cfg);
1374 vcl_cfg = &vcm->cfg;
1376 vcm->main_cpu = pthread_self ();
1377 vcm->main_pid = getpid ();
1378 vcm->app_name = format (0, "%s", app_name);
1379 fifo_segment_main_init (&vcm->segment_main, (uword) ~0,
1380 20 /* timeout in secs */);
1381 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1382 clib_spinlock_init (&vcm->workers_lock);
1383 clib_rwlock_init (&vcm->segment_table_lock);
1384 atexit (vppcom_app_exit);
1385 vcl_elog_init (vcm);
1387 /* Allocate default worker */
1388 vcl_worker_alloc_and_init ();
1390 if ((rv = vcl_api_attach ()))
1392 vppcom_app_destroy ();
1396 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1397 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1403 vppcom_app_destroy (void)
1405 vcl_worker_t *wrk, *current_wrk;
1408 if (!pool_elts (vcm->workers))
1411 vcl_evt (VCL_EVT_DETACH, vcm);
1413 current_wrk = vcl_worker_get_current ();
1416 pool_foreach (wrk, vcm->workers) {
1417 if (current_wrk != wrk)
1418 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1422 vcl_api_detach (current_wrk);
1423 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1424 vcl_set_worker_index (~0);
1426 vcl_elog_stop (vcm);
1429 * Free the heap and fix vcm
1431 heap = clib_mem_get_heap ();
1432 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1434 vcm = &_vppcom_main;
1439 vppcom_session_create (u8 proto, u8 is_nonblocking)
1441 vcl_worker_t *wrk = vcl_worker_get_current ();
1442 vcl_session_t *session;
1444 session = vcl_session_alloc (wrk);
1446 session->session_type = proto;
1447 session->session_state = VCL_STATE_CLOSED;
1448 session->vpp_handle = ~0;
1449 session->is_dgram = vcl_proto_is_dgram (proto);
1450 session->vpp_error = SESSION_E_NONE;
1453 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1455 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1456 is_nonblocking, session_index);
1458 VDBG (0, "created session %u", session->session_index);
1460 return vcl_session_handle (session);
1464 vcl_epoll_lt_add (vcl_worker_t *wrk, vcl_session_t *s)
1466 vcl_session_t *cur, *prev;
1468 ASSERT (s->vep.lt_next == VCL_INVALID_SESSION_INDEX);
1470 if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX)
1472 wrk->ep_lt_current = s->session_index;
1473 s->vep.lt_next = s->session_index;
1474 s->vep.lt_prev = s->session_index;
1478 cur = vcl_session_get (wrk, wrk->ep_lt_current);
1479 prev = vcl_session_get (wrk, cur->vep.lt_prev);
1481 prev->vep.lt_next = s->session_index;
1482 s->vep.lt_prev = prev->session_index;
1484 s->vep.lt_next = cur->session_index;
1485 cur->vep.lt_prev = s->session_index;
1489 vcl_epoll_lt_del (vcl_worker_t *wrk, vcl_session_t *s)
1491 vcl_session_t *prev, *next;
1493 ASSERT (s->vep.lt_next != VCL_INVALID_SESSION_INDEX);
1495 if (s->vep.lt_next == s->session_index)
1497 wrk->ep_lt_current = VCL_INVALID_SESSION_INDEX;
1498 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1499 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1503 prev = vcl_session_get (wrk, s->vep.lt_prev);
1504 next = vcl_session_get (wrk, s->vep.lt_next);
1506 prev->vep.lt_next = next->session_index;
1507 next->vep.lt_prev = prev->session_index;
1509 if (s->session_index == wrk->ep_lt_current)
1510 wrk->ep_lt_current = s->vep.lt_next;
1512 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1513 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1517 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1518 vcl_session_handle_t sh, u8 do_disconnect)
1522 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1524 if (s->flags & VCL_SESSION_F_IS_VEP)
1526 u32 next_sh = s->vep.next_sh;
1527 while (next_sh != ~0)
1529 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1530 if (PREDICT_FALSE (rv < 0))
1531 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1532 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1533 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1534 next_sh = s->vep.next_sh;
1539 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1541 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1543 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1544 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1545 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1550 VDBG (1, "session %u [0x%llx] disconnect skipped",
1551 s->session_index, s->vpp_handle);
1555 if (s->session_state == VCL_STATE_LISTEN)
1557 rv = vppcom_session_unbind (sh);
1558 if (PREDICT_FALSE (rv < 0))
1559 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1560 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1561 vppcom_retval_str (rv));
1564 else if (vcl_session_is_ready (s)
1565 || (vcl_session_is_connectable_listener (wrk, s)))
1567 rv = vppcom_session_disconnect (sh);
1568 if (PREDICT_FALSE (rv < 0))
1569 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1570 " rv %d (%s)", s->session_index, s->vpp_handle,
1571 rv, vppcom_retval_str (rv));
1573 else if (s->session_state == VCL_STATE_DISCONNECT)
1575 vcl_send_session_reset_reply (wrk, s, 0);
1577 else if (s->session_state == VCL_STATE_DETACHED)
1579 VDBG (0, "vpp freed session %d before close", s->session_index);
1581 if (!(s->flags & VCL_SESSION_F_PENDING_DISCONNECT))
1584 /* Disconnect/reset messages pending but vpp transport and session
1585 * cleanups already done. Free only after messages drained. */
1586 s->flags |= VCL_SESSION_F_PENDING_FREE;
1589 s->session_state = VCL_STATE_CLOSED;
1591 /* Session is removed only after vpp confirms the disconnect */
1595 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1597 vcl_session_free (wrk, s);
1598 vcl_evt (VCL_EVT_CLOSE, s, rv);
1604 vppcom_session_close (uint32_t session_handle)
1606 vcl_worker_t *wrk = vcl_worker_get_current ();
1607 vcl_session_t *session;
1609 session = vcl_session_get_w_handle (wrk, session_handle);
1611 return VPPCOM_EBADFD;
1612 return vcl_session_cleanup (wrk, session, session_handle,
1613 1 /* do_disconnect */ );
1617 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1619 vcl_worker_t *wrk = vcl_worker_get_current ();
1620 vcl_session_t *session = 0;
1623 return VPPCOM_EINVAL;
1625 session = vcl_session_get_w_handle (wrk, session_handle);
1627 return VPPCOM_EBADFD;
1629 if (session->flags & VCL_SESSION_F_IS_VEP)
1631 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1632 session->session_index);
1633 return VPPCOM_EBADFD;
1636 session->transport.is_ip4 = ep->is_ip4;
1638 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1639 sizeof (ip4_address_t));
1641 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1642 sizeof (ip6_address_t));
1643 session->transport.lcl_port = ep->port;
1646 "session %u handle %u: binding to local %s address %U port %u, "
1648 session->session_index, session_handle,
1649 session->transport.is_ip4 ? "IPv4" : "IPv6", vcl_format_ip46_address,
1650 &session->transport.lcl_ip,
1651 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1652 clib_net_to_host_u16 (session->transport.lcl_port),
1653 vppcom_proto_str (session->session_type));
1654 vcl_evt (VCL_EVT_BIND, session);
1656 if (session->session_type == VPPCOM_PROTO_UDP)
1657 vppcom_session_listen (session_handle, 10);
1663 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1665 vcl_worker_t *wrk = vcl_worker_get_current ();
1666 vcl_session_t *listen_session = 0;
1667 u64 listen_vpp_handle;
1670 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1671 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1672 return VPPCOM_EBADFD;
1674 listen_vpp_handle = listen_session->vpp_handle;
1675 if (listen_session->session_state == VCL_STATE_LISTEN)
1677 VDBG (0, "session %u [0x%llx]: already in listen state!",
1678 listen_sh, listen_vpp_handle);
1682 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1685 * Send listen request to vpp and wait for reply
1687 vcl_send_session_listen (wrk, listen_session);
1688 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1690 vcm->cfg.session_timeout);
1692 if (PREDICT_FALSE (rv))
1694 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1695 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1696 listen_sh, listen_session->vpp_handle, rv,
1697 vppcom_retval_str (rv));
1705 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1707 if (!strcmp (proto_str, "TCP"))
1708 *proto = VPPCOM_PROTO_TCP;
1709 else if (!strcmp (proto_str, "tcp"))
1710 *proto = VPPCOM_PROTO_TCP;
1711 else if (!strcmp (proto_str, "UDP"))
1712 *proto = VPPCOM_PROTO_UDP;
1713 else if (!strcmp (proto_str, "udp"))
1714 *proto = VPPCOM_PROTO_UDP;
1715 else if (!strcmp (proto_str, "TLS"))
1716 *proto = VPPCOM_PROTO_TLS;
1717 else if (!strcmp (proto_str, "tls"))
1718 *proto = VPPCOM_PROTO_TLS;
1719 else if (!strcmp (proto_str, "QUIC"))
1720 *proto = VPPCOM_PROTO_QUIC;
1721 else if (!strcmp (proto_str, "quic"))
1722 *proto = VPPCOM_PROTO_QUIC;
1723 else if (!strcmp (proto_str, "DTLS"))
1724 *proto = VPPCOM_PROTO_DTLS;
1725 else if (!strcmp (proto_str, "dtls"))
1726 *proto = VPPCOM_PROTO_DTLS;
1727 else if (!strcmp (proto_str, "SRTP"))
1728 *proto = VPPCOM_PROTO_SRTP;
1729 else if (!strcmp (proto_str, "srtp"))
1730 *proto = VPPCOM_PROTO_SRTP;
1737 vppcom_session_accept (uint32_t ls_handle, vppcom_endpt_t *ep, uint32_t flags)
1739 u32 client_session_index = ~0, ls_index, accept_flags = 0;
1740 vcl_worker_t *wrk = vcl_worker_get_current ();
1741 session_accepted_msg_t accepted_msg;
1742 vcl_session_t *ls, *client_session = 0;
1743 vcl_session_msg_t *evt;
1748 ls = vcl_session_get_w_handle (wrk, ls_handle);
1750 return VPPCOM_EBADFD;
1752 if ((ls->session_state != VCL_STATE_LISTEN) &&
1753 (ls->session_state != VCL_STATE_LISTEN_NO_MQ) &&
1754 (!vcl_session_is_connectable_listener (wrk, ls)))
1756 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state (%s)",
1757 ls->vpp_handle, vcl_session_state_str (ls->session_state));
1758 return VPPCOM_EBADFD;
1761 ls_index = ls->session_index;
1763 if (clib_fifo_elts (ls->accept_evts_fifo))
1765 clib_fifo_sub2 (ls->accept_evts_fifo, evt);
1766 accept_flags = evt->flags;
1767 accepted_msg = evt->accepted_msg;
1771 is_nonblocking = vcl_session_has_attr (ls, VCL_SESS_ATTR_NONBLOCK);
1774 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1775 return VPPCOM_EAGAIN;
1777 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1778 vcl_worker_flush_mq_events (wrk);
1784 client_session_index =
1785 vcl_session_accepted_handler (wrk, &accepted_msg, ls_index);
1786 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1787 return VPPCOM_ECONNABORTED;
1789 ls = vcl_session_get (wrk, ls_index);
1790 client_session = vcl_session_get (wrk, client_session_index);
1792 if (flags & O_NONBLOCK)
1793 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1796 "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1797 " flags %d, is_nonblocking %u",
1798 ls->session_index, ls->vpp_handle, client_session_index,
1799 client_session->vpp_handle, flags,
1800 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1804 ep->is_ip4 = client_session->transport.is_ip4;
1805 ep->port = client_session->transport.rmt_port;
1806 if (client_session->transport.is_ip4)
1807 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1808 sizeof (ip4_address_t));
1810 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1811 sizeof (ip6_address_t));
1815 "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1817 ls_handle, ls->vpp_handle, client_session_index,
1818 client_session->vpp_handle, vcl_format_ip46_address,
1819 &client_session->transport.rmt_ip,
1820 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1821 clib_net_to_host_u16 (client_session->transport.rmt_port),
1822 vcl_format_ip46_address, &client_session->transport.lcl_ip,
1823 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1824 clib_net_to_host_u16 (client_session->transport.lcl_port));
1825 vcl_evt (VCL_EVT_ACCEPT, client_session, ls, client_session_index);
1828 * Session might have been closed already
1832 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1833 client_session->session_state = VCL_STATE_VPP_CLOSING;
1834 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1835 client_session->session_state = VCL_STATE_DISCONNECT;
1837 return vcl_session_handle (client_session);
1841 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1843 vcl_worker_t *wrk = vcl_worker_get_current ();
1844 vcl_session_t *session = 0;
1848 session = vcl_session_get_w_handle (wrk, session_handle);
1850 return VPPCOM_EBADFD;
1851 session_index = session->session_index;
1853 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1855 VWRN ("cannot connect epoll session %u!", session->session_index);
1856 return VPPCOM_EBADFD;
1859 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1862 "session %u [0x%llx]: already connected to %U:%d proto %s,"
1864 session->session_index, session->vpp_handle,
1865 vcl_format_ip46_address, &session->transport.rmt_ip,
1866 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1867 clib_net_to_host_u16 (session->transport.rmt_port),
1868 vppcom_proto_str (session->session_type),
1869 vcl_session_state_str (session->session_state));
1873 /* Attempt to connect a connectionless listener */
1874 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1876 if (session->session_type != VPPCOM_PROTO_UDP)
1877 return VPPCOM_EINVAL;
1878 vcl_send_session_unlisten (wrk, session);
1879 session->session_state = VCL_STATE_CLOSED;
1882 session->transport.is_ip4 = server_ep->is_ip4;
1883 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1884 session->transport.rmt_port = server_ep->port;
1885 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1886 session->flags |= VCL_SESSION_F_CONNECTED;
1888 VDBG (0, "session %u: connecting to peer %U:%d proto %s",
1889 session->session_index, vcl_format_ip46_address,
1890 &session->transport.rmt_ip,
1891 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1892 clib_net_to_host_u16 (session->transport.rmt_port),
1893 vppcom_proto_str (session->session_type));
1895 vcl_send_session_connect (wrk, session);
1897 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1899 /* State set to STATE_UPDATED to ensure the session is not assumed
1900 * to be ready and to also allow the app to close it prior to vpp's
1901 * connected reply. */
1902 session->session_state = VCL_STATE_UPDATED;
1903 return VPPCOM_EINPROGRESS;
1907 * Wait for reply from vpp if blocking
1909 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1910 vcm->cfg.session_timeout);
1912 session = vcl_session_get (wrk, session_index);
1913 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1914 session->vpp_handle, rv ? "failed" : "succeeded");
1920 vppcom_session_stream_connect (uint32_t session_handle,
1921 uint32_t parent_session_handle)
1923 vcl_worker_t *wrk = vcl_worker_get_current ();
1924 vcl_session_t *session, *parent_session;
1925 u32 session_index, parent_session_index;
1928 session = vcl_session_get_w_handle (wrk, session_handle);
1930 return VPPCOM_EBADFD;
1931 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1932 if (!parent_session)
1933 return VPPCOM_EBADFD;
1935 session_index = session->session_index;
1936 parent_session_index = parent_session->session_index;
1937 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1939 VDBG (0, "ERROR: cannot connect epoll session %u!",
1940 session->session_index);
1941 return VPPCOM_EBADFD;
1944 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1947 "session handle %u [0x%llx]: session already "
1948 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1949 session_handle, session->vpp_handle, parent_session_handle,
1950 parent_session->vpp_handle,
1951 vppcom_proto_str (session->session_type), session->session_state,
1952 vcl_session_state_str (session->session_state));
1956 /* Connect to quic session specifics */
1957 session->transport.is_ip4 = parent_session->transport.is_ip4;
1958 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1959 session->transport.rmt_port = 0;
1960 session->parent_handle = parent_session->vpp_handle;
1962 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1963 session_handle, parent_session_handle, parent_session->vpp_handle);
1966 * Send connect request and wait for reply from vpp
1968 vcl_send_session_connect (wrk, session);
1969 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1970 vcm->cfg.session_timeout);
1972 session->listener_index = parent_session_index;
1973 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1975 parent_session->n_accepted_sessions++;
1977 session = vcl_session_get (wrk, session_index);
1978 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1979 session->vpp_handle, rv ? "failed" : "succeeded");
1985 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1988 vcl_worker_t *wrk = vcl_worker_get_current ();
1989 int rv, n_read = 0, is_nonblocking;
1990 vcl_session_t *s = 0;
1991 svm_fifo_t *rx_fifo;
1996 if (PREDICT_FALSE (!buf))
1997 return VPPCOM_EFAULT;
1999 s = vcl_session_get_w_handle (wrk, session_handle);
2000 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2001 return VPPCOM_EBADFD;
2003 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2005 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
2006 s->session_index, s->vpp_handle, s->session_state,
2007 vcl_session_state_str (s->session_state));
2008 return vcl_session_closed_error (s);
2011 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
2013 /* Vpp would ack the incoming data and enqueue it for reading.
2014 * So even if SHUT_RD is set, we can still read() the data if
2015 * the session is ready.
2017 if (!vcl_session_read_ready (s))
2023 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2024 is_ct = vcl_session_is_ct (s);
2025 mq = wrk->app_event_queue;
2026 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2027 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2029 if (svm_fifo_is_empty_cons (rx_fifo))
2033 if (vcl_session_is_closing (s))
2034 return vcl_session_closing_error (s);
2036 svm_fifo_unset_event (s->rx_fifo);
2037 svm_fifo_unset_event (rx_fifo);
2038 return VPPCOM_EWOULDBLOCK;
2040 while (svm_fifo_is_empty_cons (rx_fifo))
2042 if (vcl_session_is_closing (s))
2043 return vcl_session_closing_error (s);
2046 svm_fifo_unset_event (s->rx_fifo);
2047 svm_fifo_unset_event (rx_fifo);
2049 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2050 vcl_worker_flush_mq_events (wrk);
2057 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
2059 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
2068 if (svm_fifo_is_empty_cons (rx_fifo))
2071 svm_fifo_unset_event (s->rx_fifo);
2072 svm_fifo_unset_event (rx_fifo);
2073 if (!svm_fifo_is_empty_cons (rx_fifo)
2074 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
2076 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2077 e->event_type = SESSION_IO_EVT_RX;
2078 e->session_index = s->session_index;
2081 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
2083 /* More data enqueued while reading. Try to drain it
2084 * or fill the buffer. Avoid doing that for dgrams */
2090 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
2092 svm_fifo_clear_deq_ntf (rx_fifo);
2093 app_send_io_evt_to_vpp (s->vpp_evt_q,
2094 s->rx_fifo->shr->master_session_index,
2095 SESSION_IO_EVT_RX, SVM_Q_WAIT);
2098 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
2099 s->vpp_handle, n_read, rx_fifo);
2105 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
2107 return (vppcom_session_read_internal (session_handle, buf, n, 0));
2111 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
2113 return (vppcom_session_read_internal (session_handle, buf, n, 1));
2117 vppcom_session_read_segments (uint32_t session_handle,
2118 vppcom_data_segment_t * ds, uint32_t n_segments,
2121 vcl_worker_t *wrk = vcl_worker_get_current ();
2122 int n_read = 0, is_nonblocking;
2123 vcl_session_t *s = 0;
2124 svm_fifo_t *rx_fifo;
2128 s = vcl_session_get_w_handle (wrk, session_handle);
2129 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2130 return VPPCOM_EBADFD;
2132 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2133 return vcl_session_closed_error (s);
2135 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2136 is_ct = vcl_session_is_ct (s);
2137 mq = wrk->app_event_queue;
2138 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2139 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2141 if (svm_fifo_is_empty_cons (rx_fifo))
2146 svm_fifo_unset_event (s->rx_fifo);
2147 svm_fifo_unset_event (rx_fifo);
2148 return VPPCOM_EWOULDBLOCK;
2150 while (svm_fifo_is_empty_cons (rx_fifo))
2152 if (vcl_session_is_closing (s))
2153 return vcl_session_closing_error (s);
2156 svm_fifo_unset_event (s->rx_fifo);
2157 svm_fifo_unset_event (rx_fifo);
2159 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2160 vcl_worker_flush_mq_events (wrk);
2164 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2165 (svm_fifo_seg_t *) ds, &n_segments, max_bytes);
2167 return VPPCOM_EAGAIN;
2169 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2172 svm_fifo_unset_event (s->rx_fifo);
2173 svm_fifo_unset_event (rx_fifo);
2174 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2175 && svm_fifo_set_event (rx_fifo)
2176 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2179 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2180 e->event_type = SESSION_IO_EVT_RX;
2181 e->session_index = s->session_index;
2185 s->rx_bytes_pending += n_read;
2190 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2192 vcl_worker_t *wrk = vcl_worker_get_current ();
2196 s = vcl_session_get_w_handle (wrk, session_handle);
2197 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2200 is_ct = vcl_session_is_ct (s);
2201 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2203 ASSERT (s->rx_bytes_pending >= n_bytes);
2204 s->rx_bytes_pending -= n_bytes;
2208 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2210 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2212 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2218 vppcom_session_write_inline (vcl_worker_t *wrk, vcl_session_t *s, void *buf,
2219 size_t n, u8 is_flush, u8 is_dgram)
2221 int n_write, is_nonblocking;
2222 session_evt_type_t et;
2223 svm_fifo_t *tx_fifo;
2227 /* Accept zero length writes but just return */
2228 if (PREDICT_FALSE (!n))
2231 if (PREDICT_FALSE (!buf))
2232 return VPPCOM_EFAULT;
2234 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2236 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2237 " session!", s->session_index, s->vpp_handle);
2238 return VPPCOM_EBADFD;
2241 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2243 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2244 s->session_index, s->vpp_handle, s->session_state,
2245 vcl_session_state_str (s->session_state));
2246 return vcl_session_closed_error (s);;
2249 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_WR_SHUTDOWN))
2251 VDBG (1, "session %u [0x%llx]: is shutdown! state 0x%x (%s)",
2252 s->session_index, s->vpp_handle, s->session_state,
2253 vcl_session_state_str (s->session_state));
2254 return VPPCOM_EPIPE;
2257 is_ct = vcl_session_is_ct (s);
2258 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2259 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2261 mq = wrk->app_event_queue;
2262 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2266 return VPPCOM_EWOULDBLOCK;
2268 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2270 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2271 if (vcl_session_is_closing (s))
2272 return vcl_session_closing_error (s);
2274 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2275 vcl_worker_flush_mq_events (wrk);
2279 et = SESSION_IO_EVT_TX;
2280 if (is_flush && !is_ct)
2281 et = SESSION_IO_EVT_TX_FLUSH;
2285 app_send_dgram_raw_gso (tx_fifo, &s->transport, s->vpp_evt_q, buf, n,
2286 s->gso_size, et, 0 /* do_evt */, SVM_Q_WAIT);
2288 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2289 0 /* do_evt */ , SVM_Q_WAIT);
2291 if (svm_fifo_set_event (s->tx_fifo))
2292 app_send_io_evt_to_vpp (
2293 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2295 /* The underlying fifo segment can run out of memory */
2296 if (PREDICT_FALSE (n_write < 0))
2297 return VPPCOM_EAGAIN;
2299 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2300 s->vpp_handle, n_write);
2306 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2308 vcl_worker_t *wrk = vcl_worker_get_current ();
2311 s = vcl_session_get_w_handle (wrk, session_handle);
2312 if (PREDICT_FALSE (!s))
2313 return VPPCOM_EBADFD;
2315 return vppcom_session_write_inline (wrk, s, buf, n, 0 /* is_flush */,
2316 s->is_dgram ? 1 : 0);
2320 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2322 vcl_worker_t *wrk = vcl_worker_get_current ();
2325 s = vcl_session_get_w_handle (wrk, session_handle);
2326 if (PREDICT_FALSE (!s))
2327 return VPPCOM_EBADFD;
2329 return vppcom_session_write_inline (wrk, s, buf, n, 1 /* is_flush */,
2330 s->is_dgram ? 1 : 0);
2333 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2334 if (PREDICT_FALSE (!_s->rx_fifo)) \
2336 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2338 if (!vcl_session_is_ct (_s)) \
2340 svm_fifo_unset_event (_s->rx_fifo); \
2341 if (svm_fifo_is_empty (_s->rx_fifo)) \
2344 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2346 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2347 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2353 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2354 unsigned long n_bits, unsigned long *read_map,
2355 unsigned long *write_map,
2356 unsigned long *except_map, u32 * bits_set)
2358 session_disconnected_msg_t *disconnected_msg;
2359 session_connected_msg_t *connected_msg;
2363 switch (e->event_type)
2365 case SESSION_IO_EVT_RX:
2366 sid = e->session_index;
2367 s = vcl_session_get (wrk, sid);
2368 if (!s || !vcl_session_is_open (s))
2370 vcl_fifo_rx_evt_valid_or_break (s);
2371 if (sid < n_bits && read_map)
2373 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2377 case SESSION_IO_EVT_TX:
2378 sid = e->session_index;
2379 s = vcl_session_get (wrk, sid);
2380 if (!s || !vcl_session_is_open (s))
2382 if (sid < n_bits && write_map)
2384 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2388 case SESSION_CTRL_EVT_ACCEPTED:
2390 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2392 s = vcl_session_get (wrk, e->session_index);
2395 sid = s->session_index;
2396 if (sid < n_bits && read_map)
2398 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2402 case SESSION_CTRL_EVT_CONNECTED:
2405 connected_msg = (session_connected_msg_t *) e->data;
2406 sid = vcl_session_connected_handler (wrk, connected_msg);
2409 sid = e->session_index;
2410 if (sid == VCL_INVALID_SESSION_INDEX)
2412 if (!(sid < n_bits && write_map))
2414 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2416 s = vcl_session_get (wrk, sid);
2419 /* We didn't have a fifo when the event was added */
2420 svm_fifo_add_want_deq_ntf (
2421 (vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo),
2422 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2424 case SESSION_CTRL_EVT_DISCONNECTED:
2425 disconnected_msg = (session_disconnected_msg_t *) e->data;
2426 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2429 sid = s->session_index;
2430 if (sid < n_bits && except_map)
2432 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2436 case SESSION_CTRL_EVT_RESET:
2437 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2438 if (sid < n_bits && except_map)
2440 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2444 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2445 vcl_session_unlisten_reply_handler (wrk, e->data);
2447 case SESSION_CTRL_EVT_MIGRATED:
2448 vcl_session_migrated_handler (wrk, e->data);
2450 case SESSION_CTRL_EVT_CLEANUP:
2451 vcl_session_cleanup_handler (wrk, e->data);
2453 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2454 vcl_session_worker_update_reply_handler (wrk, e->data);
2456 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2457 vcl_session_req_worker_update_handler (wrk, e->data);
2459 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2460 vcl_session_app_add_segment_handler (wrk, e->data);
2462 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2463 vcl_session_app_del_segment_handler (wrk, e->data);
2465 case SESSION_CTRL_EVT_APP_WRK_RPC:
2466 vcl_worker_rpc_handler (wrk, e->data);
2469 clib_warning ("unhandled: %u", e->event_type);
2475 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2476 unsigned long n_bits, unsigned long *read_map,
2477 unsigned long *write_map, unsigned long *except_map,
2478 double time_to_wait, u32 * bits_set)
2480 svm_msg_q_msg_t *msg;
2484 if (svm_msg_q_is_empty (mq))
2491 else if (time_to_wait < 0)
2492 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2495 if (svm_msg_q_timedwait (mq, time_to_wait))
2499 vcl_mq_dequeue_batch (wrk, mq, ~0);
2501 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2503 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2504 e = svm_msg_q_msg_data (mq, msg);
2505 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2506 except_map, bits_set);
2507 svm_msg_q_free_msg (mq, msg);
2509 vec_reset_length (wrk->mq_msg_vector);
2510 vcl_handle_pending_wrk_updates (wrk);
2515 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2516 vcl_si_set * read_map, vcl_si_set * write_map,
2517 vcl_si_set * except_map, double time_to_wait,
2520 double wait = 0, start = 0;
2524 wait = time_to_wait;
2525 start = clib_time_now (&wrk->clib_time);
2530 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2531 write_map, except_map, wait, bits_set);
2537 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2545 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2546 vcl_si_set * read_map, vcl_si_set * write_map,
2547 vcl_si_set * except_map, double time_to_wait,
2550 vcl_mq_evt_conn_t *mqc;
2551 int __clib_unused n_read;
2555 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
2557 vcl_api_retry_attach (wrk);
2561 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2562 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2563 vec_len (wrk->mq_events), time_to_wait);
2564 for (i = 0; i < n_mq_evts; i++)
2566 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
2568 vcl_api_handle_disconnect (wrk);
2572 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2573 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2574 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2575 except_map, 0, bits_set);
2578 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2582 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2583 vcl_si_set * except_map, double time_to_wait)
2585 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2586 vcl_worker_t *wrk = vcl_worker_get_current ();
2587 vcl_session_t *s = 0;
2590 if (n_bits && read_map)
2592 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2593 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2594 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2595 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2597 if (n_bits && write_map)
2599 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2600 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2601 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2602 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2604 if (n_bits && except_map)
2606 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2607 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2608 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2609 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2618 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2620 if (!(s = vcl_session_get (wrk, sid)))
2622 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2627 if (vcl_session_write_ready (s))
2629 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2632 else if (s->tx_fifo)
2634 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2635 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2643 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2645 if (!(s = vcl_session_get (wrk, sid)))
2647 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2652 if (vcl_session_read_ready (s))
2654 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2661 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2663 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2664 read_map, write_map, except_map, &bits_set);
2666 vec_reset_length (wrk->unhandled_evts_vector);
2668 if (vcm->cfg.use_mq_eventfd)
2669 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2670 time_to_wait, &bits_set);
2672 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2673 time_to_wait, &bits_set);
2679 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2681 vppcom_epoll_t *vep;
2682 u32 sh = vep_handle;
2685 if (VPPCOM_DEBUG <= 2)
2688 s = vcl_session_get_w_handle (wrk, vep_handle);
2689 if (PREDICT_FALSE (!s))
2691 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2694 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2696 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2700 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2703 " is_vep_session = %u\n"
2704 " next_sh = 0x%x (%u)\n"
2705 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2706 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2708 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2710 s = vcl_session_get_w_handle (wrk, sh);
2711 if (PREDICT_FALSE (!s))
2713 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2716 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2718 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2720 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2722 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2726 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2727 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2728 sh, s->vep.vep_sh, vep_handle);
2729 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2731 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2733 " next_sh = 0x%x (%u)\n"
2734 " prev_sh = 0x%x (%u)\n"
2735 " vep_sh = 0x%x (%u)\n"
2736 " ev.events = 0x%x\n"
2737 " ev.data.u64 = 0x%llx\n"
2740 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2741 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2742 vep->ev.data.u64, vep->et_mask);
2747 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2751 vppcom_epoll_create (void)
2753 vcl_worker_t *wrk = vcl_worker_get_current ();
2754 vcl_session_t *vep_session;
2756 vep_session = vcl_session_alloc (wrk);
2758 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2759 vep_session->vep.vep_sh = ~0;
2760 vep_session->vep.next_sh = ~0;
2761 vep_session->vep.prev_sh = ~0;
2762 vep_session->vpp_handle = ~0;
2764 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2765 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2767 return vcl_session_handle (vep_session);
2771 vcl_epoll_ctl_add_unhandled_event (vcl_worker_t *wrk, vcl_session_t *s,
2772 u8 is_epollet, session_evt_type_t evt)
2776 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
2777 vcl_epoll_lt_add (wrk, s);
2781 session_event_t e = { 0 };
2782 e.session_index = s->session_index;
2784 if (evt == SESSION_IO_EVT_RX)
2785 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2786 vec_add1 (wrk->unhandled_evts_vector, e);
2790 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2791 struct epoll_event *event)
2793 vcl_worker_t *wrk = vcl_worker_get_current ();
2794 int rv = VPPCOM_OK, add_evt = 0;
2795 vcl_session_t *vep_session;
2799 if (vep_handle == session_handle)
2801 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2802 return VPPCOM_EINVAL;
2805 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2806 if (PREDICT_FALSE (!vep_session))
2808 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2809 return VPPCOM_EBADFD;
2811 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2813 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2814 return VPPCOM_EINVAL;
2817 ASSERT (vep_session->vep.vep_sh == ~0);
2818 ASSERT (vep_session->vep.prev_sh == ~0);
2820 s = vcl_session_get_w_handle (wrk, session_handle);
2821 if (PREDICT_FALSE (!s))
2823 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2824 return VPPCOM_EBADFD;
2826 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2828 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2829 return VPPCOM_EINVAL;
2835 if (PREDICT_FALSE (!event))
2837 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2838 return VPPCOM_EINVAL;
2840 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2842 VDBG (0, "EPOLL_CTL_ADD: %u already epolled!", s->session_index);
2846 if (vep_session->vep.next_sh != ~0)
2848 vcl_session_t *next_session;
2849 next_session = vcl_session_get_w_handle (wrk,
2850 vep_session->vep.next_sh);
2851 if (PREDICT_FALSE (!next_session))
2853 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2854 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2855 return VPPCOM_EBADFD;
2857 ASSERT (next_session->vep.prev_sh == vep_handle);
2858 next_session->vep.prev_sh = session_handle;
2860 s->vep.next_sh = vep_session->vep.next_sh;
2861 s->vep.prev_sh = vep_handle;
2862 s->vep.vep_sh = vep_handle;
2863 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2864 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
2866 s->flags &= ~VCL_SESSION_F_IS_VEP;
2867 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2868 vep_session->vep.next_sh = session_handle;
2870 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2871 if (txf && (event->events & EPOLLOUT))
2872 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2874 /* Generate EPOLLOUT if tx fifo not full */
2875 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2877 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2881 /* Generate EPOLLIN if rx fifo has data */
2882 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2884 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2888 if (!add_evt && vcl_session_is_closing (s))
2890 session_event_t e = { 0 };
2891 if (s->session_state == VCL_STATE_VPP_CLOSING)
2892 e.event_type = SESSION_CTRL_EVT_DISCONNECTED;
2894 e.event_type = SESSION_CTRL_EVT_RESET;
2895 e.session_index = s->session_index;
2897 vec_add1 (wrk->unhandled_evts_vector, e);
2899 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2900 vep_handle, session_handle, event->events, event->data.u64);
2901 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2905 if (PREDICT_FALSE (!event))
2907 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2911 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2913 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2917 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2919 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2920 session_handle, s->vep.vep_sh, vep_handle);
2925 /* Generate EPOLLOUT if session write ready nd event was not on */
2926 if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT) &&
2927 (vcl_session_write_ready (s) > 0))
2929 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2932 /* Generate EPOLLIN if session read ready and event was not on */
2933 if ((event->events & EPOLLIN) && !(s->vep.ev.events & EPOLLIN) &&
2934 (vcl_session_read_ready (s) > 0))
2936 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2939 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2941 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2944 if (event->events & EPOLLOUT)
2945 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2947 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2949 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2950 vep_handle, session_handle, event->events, event->data.u64);
2954 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2956 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2960 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2962 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2963 session_handle, s->vep.vep_sh, vep_handle);
2968 if (s->vep.prev_sh == vep_handle)
2969 vep_session->vep.next_sh = s->vep.next_sh;
2972 vcl_session_t *prev_session;
2973 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2974 if (PREDICT_FALSE (!prev_session))
2976 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2977 s->vep.prev_sh, session_handle);
2978 return VPPCOM_EBADFD;
2980 ASSERT (prev_session->vep.next_sh == session_handle);
2981 prev_session->vep.next_sh = s->vep.next_sh;
2983 if (s->vep.next_sh != ~0)
2985 vcl_session_t *next_session;
2986 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2987 if (PREDICT_FALSE (!next_session))
2989 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2990 s->vep.next_sh, session_handle);
2991 return VPPCOM_EBADFD;
2993 ASSERT (next_session->vep.prev_sh == session_handle);
2994 next_session->vep.prev_sh = s->vep.prev_sh;
2997 if (s->vep.lt_next != VCL_INVALID_SESSION_INDEX)
2998 vcl_epoll_lt_del (wrk, s);
3000 memset (&s->vep, 0, sizeof (s->vep));
3001 s->vep.next_sh = ~0;
3002 s->vep.prev_sh = ~0;
3004 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
3005 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
3007 if (vcl_session_is_open (s))
3009 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
3011 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3014 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
3016 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
3020 VDBG (0, "Invalid operation (%d)!", op);
3024 vep_verify_epoll_chain (wrk, vep_handle);
3031 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
3032 struct epoll_event *events, u32 * num_ev)
3034 session_disconnected_msg_t *disconnected_msg;
3035 session_connected_msg_t *connected_msg;
3036 u32 sid = ~0, session_events;
3037 u64 session_evt_data = ~0;
3041 switch (e->event_type)
3043 case SESSION_IO_EVT_RX:
3044 sid = e->session_index;
3045 s = vcl_session_get (wrk, sid);
3046 if (vcl_session_is_closed (s))
3048 vcl_fifo_rx_evt_valid_or_break (s);
3049 session_events = s->vep.ev.events;
3050 if (!(EPOLLIN & s->vep.ev.events) ||
3051 (s->flags & VCL_SESSION_F_HAS_RX_EVT) ||
3052 (s->vep.lt_next != VCL_INVALID_SESSION_INDEX))
3055 events[*num_ev].events = EPOLLIN;
3056 session_evt_data = s->vep.ev.data.u64;
3057 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
3059 case SESSION_IO_EVT_TX:
3060 sid = e->session_index;
3061 s = vcl_session_get (wrk, sid);
3062 if (!s || !vcl_session_is_open (s))
3064 session_events = s->vep.ev.events;
3065 if (!(EPOLLOUT & session_events))
3068 events[*num_ev].events = EPOLLOUT;
3069 session_evt_data = s->vep.ev.data.u64;
3070 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
3071 s->ct_tx_fifo : s->tx_fifo);
3073 case SESSION_CTRL_EVT_ACCEPTED:
3075 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
3077 s = vcl_session_get (wrk, e->session_index);
3080 session_events = s->vep.ev.events;
3081 sid = s->session_index;
3082 if (!(EPOLLIN & session_events) ||
3083 (s->vep.lt_next != VCL_INVALID_SESSION_INDEX))
3086 events[*num_ev].events = EPOLLIN;
3087 session_evt_data = s->vep.ev.data.u64;
3089 case SESSION_CTRL_EVT_CONNECTED:
3092 connected_msg = (session_connected_msg_t *) e->data;
3093 sid = vcl_session_connected_handler (wrk, connected_msg);
3096 sid = e->session_index;
3097 s = vcl_session_get (wrk, sid);
3098 if (vcl_session_is_closed (s))
3100 session_events = s->vep.ev.events;
3101 /* Generate EPOLLOUT because there's no connected event */
3102 if (!(EPOLLOUT & session_events) || !s->tx_fifo)
3104 /* We didn't have a fifo when the event was added */
3105 svm_fifo_add_want_deq_ntf (
3106 (vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo),
3107 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3109 events[*num_ev].events = EPOLLOUT;
3110 session_evt_data = s->vep.ev.data.u64;
3111 if (s->session_state == VCL_STATE_DETACHED)
3112 events[*num_ev].events |= EPOLLHUP;
3114 case SESSION_CTRL_EVT_DISCONNECTED:
3117 disconnected_msg = (session_disconnected_msg_t *) e->data;
3118 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
3122 s = vcl_session_get (wrk, e->session_index);
3123 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3125 if (vcl_session_is_closed (s) ||
3126 !(s->flags & VCL_SESSION_F_IS_VEP_SESSION))
3128 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3129 vcl_session_free (wrk, s);
3132 sid = s->session_index;
3133 session_events = s->vep.ev.events;
3135 if (EPOLLRDHUP & session_events)
3137 /* If app can distinguish between RDHUP and HUP,
3138 * we make finer control */
3139 events[*num_ev].events = EPOLLRDHUP;
3140 if (s->flags & VCL_SESSION_F_WR_SHUTDOWN)
3142 events[*num_ev].events |= EPOLLHUP;
3147 events[*num_ev].events = EPOLLHUP;
3149 session_evt_data = s->vep.ev.data.u64;
3152 case SESSION_CTRL_EVT_BOUND:
3153 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
3155 case SESSION_CTRL_EVT_RESET:
3159 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
3160 s = vcl_session_get (wrk, sid);
3164 sid = e->session_index;
3165 s = vcl_session_get (wrk, sid);
3166 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3168 if (vcl_session_is_closed (s) ||
3169 !(s->flags & VCL_SESSION_F_IS_VEP_SESSION))
3171 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3172 vcl_session_free (wrk, s);
3175 session_events = s->vep.ev.events;
3177 events[*num_ev].events = EPOLLERR | EPOLLHUP;
3178 if ((EPOLLRDHUP & session_events) &&
3179 (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3181 events[*num_ev].events |= EPOLLRDHUP;
3183 if ((EPOLLIN & session_events) && (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3185 events[*num_ev].events |= EPOLLIN;
3187 session_evt_data = s->vep.ev.data.u64;
3189 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
3190 vcl_session_unlisten_reply_handler (wrk, e->data);
3192 case SESSION_CTRL_EVT_MIGRATED:
3193 vcl_session_migrated_handler (wrk, e->data);
3195 case SESSION_CTRL_EVT_CLEANUP:
3196 vcl_session_cleanup_handler (wrk, e->data);
3198 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
3199 vcl_session_req_worker_update_handler (wrk, e->data);
3201 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
3202 vcl_session_worker_update_reply_handler (wrk, e->data);
3204 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
3205 vcl_session_app_add_segment_handler (wrk, e->data);
3207 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
3208 vcl_session_app_del_segment_handler (wrk, e->data);
3210 case SESSION_CTRL_EVT_APP_WRK_RPC:
3211 vcl_worker_rpc_handler (wrk, e->data);
3214 VDBG (0, "unhandled: %u", e->event_type);
3220 events[*num_ev].data.u64 = session_evt_data;
3221 if (EPOLLONESHOT & session_events)
3223 s = vcl_session_get (wrk, sid);
3224 s->vep.ev.events = 0;
3226 else if (!(EPOLLET & session_events))
3228 s = vcl_session_get (wrk, sid);
3229 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
3230 vcl_epoll_lt_add (wrk, s);
3237 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
3238 struct epoll_event *events, u32 maxevents,
3239 double wait_for_time, u32 * num_ev)
3241 svm_msg_q_msg_t *msg;
3245 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
3246 goto handle_dequeued;
3248 if (svm_msg_q_is_empty (mq))
3252 else if (wait_for_time < 0)
3253 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
3256 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3260 ASSERT (maxevents > *num_ev);
3261 vcl_mq_dequeue_batch (wrk, mq, ~0);
3264 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3266 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3267 e = svm_msg_q_msg_data (mq, msg);
3268 if (*num_ev < maxevents)
3269 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3271 vcl_handle_mq_event (wrk, e);
3272 svm_msg_q_free_msg (mq, msg);
3274 vec_reset_length (wrk->mq_msg_vector);
3275 vcl_handle_pending_wrk_updates (wrk);
3280 vppcom_epoll_wait_condvar (vcl_worker_t *wrk, struct epoll_event *events,
3281 int maxevents, u32 n_evts, double timeout_ms)
3288 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3293 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3294 timeout_ms, &n_evts);
3295 if (n_evts || !timeout_ms)
3298 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3304 vppcom_epoll_wait_eventfd (vcl_worker_t *wrk, struct epoll_event *events,
3305 int maxevents, u32 n_evts, double timeout_ms)
3307 int __clib_unused n_read;
3308 vcl_mq_evt_conn_t *mqc;
3313 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
3315 vcl_api_retry_attach (wrk);
3319 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3323 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3328 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3329 vec_len (wrk->mq_events), timeout_ms);
3332 VDBG (0, "epoll_wait error %u", errno);
3336 for (i = 0; i < n_mq_evts; i++)
3338 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
3340 /* api socket was closed */
3341 vcl_api_handle_disconnect (wrk);
3345 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3346 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3347 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3351 if (n_evts || !timeout_ms)
3354 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3360 vcl_epoll_wait_handle_lt (vcl_worker_t *wrk, struct epoll_event *events,
3361 int maxevents, u32 *n_evts)
3363 u32 add_event = 0, next;
3368 ASSERT (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX);
3369 if (*n_evts >= maxevents)
3372 next = wrk->ep_lt_current;
3375 s = vcl_session_get (wrk, next);
3376 next = s->vep.lt_next;
3378 if ((s->vep.ev.events & EPOLLIN) && (rv = vcl_session_read_ready (s)))
3381 events[*n_evts].events |= rv > 0 ? EPOLLIN : EPOLLHUP | EPOLLRDHUP;
3382 evt_data = s->vep.ev.data.u64;
3384 if ((s->vep.ev.events & EPOLLOUT) && (rv = vcl_session_write_ready (s)))
3387 events[*n_evts].events |= rv > 0 ? EPOLLOUT : EPOLLHUP | EPOLLRDHUP;
3388 evt_data = s->vep.ev.data.u64;
3390 if (!add_event && s->session_state > VCL_STATE_READY)
3393 events[*n_evts].events |= EPOLLHUP | EPOLLRDHUP;
3394 evt_data = s->vep.ev.data.u64;
3398 events[*n_evts].data.u64 = evt_data;
3401 if (EPOLLONESHOT & s->vep.ev.events)
3402 s->vep.ev.events = 0;
3403 if (*n_evts == maxevents)
3405 wrk->ep_lt_current = next;
3411 vcl_epoll_lt_del (wrk, s);
3412 if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX)
3416 while (next != wrk->ep_lt_current);
3420 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3421 int maxevents, double wait_for_time)
3423 vcl_worker_t *wrk = vcl_worker_get_current ();
3424 vcl_session_t *vep_session;
3428 if (PREDICT_FALSE (maxevents <= 0))
3430 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3431 return VPPCOM_EINVAL;
3434 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3436 return VPPCOM_EBADFD;
3438 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3440 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3441 return VPPCOM_EINVAL;
3444 if (vec_len (wrk->unhandled_evts_vector))
3446 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3448 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3450 if (n_evts == maxevents)
3452 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3456 vec_reset_length (wrk->unhandled_evts_vector);
3459 if (PREDICT_FALSE (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX))
3460 vcl_epoll_wait_handle_lt (wrk, events, maxevents, &n_evts);
3462 /* Request to only drain unhandled */
3463 if ((int) wait_for_time == -2)
3467 if (vcm->cfg.use_mq_eventfd)
3468 n_evts = vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3471 n_evts = vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3478 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3479 void *buffer, uint32_t * buflen)
3481 vcl_worker_t *wrk = vcl_worker_get_current ();
3482 u32 *flags = buffer;
3483 vppcom_endpt_t *ep = buffer;
3484 transport_endpt_attr_t tea;
3485 vcl_session_t *session;
3488 session = vcl_session_get_w_handle (wrk, session_handle);
3490 return VPPCOM_EBADFD;
3494 case VPPCOM_ATTR_GET_NREAD:
3495 rv = vcl_session_read_ready (session);
3496 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3500 case VPPCOM_ATTR_GET_NWRITE:
3501 rv = vcl_session_write_ready (session);
3502 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3506 case VPPCOM_ATTR_GET_FLAGS:
3507 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3511 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3513 *buflen = sizeof (*flags);
3514 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3515 "is_nonblocking = %u", session_handle, *flags,
3516 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3522 case VPPCOM_ATTR_SET_FLAGS:
3523 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3525 if (*flags & O_NONBLOCK)
3526 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3528 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3530 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3531 " is_nonblocking = %u", session_handle, *flags,
3532 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3538 case VPPCOM_ATTR_GET_PEER_ADDR:
3539 if (PREDICT_TRUE (buffer && buflen &&
3540 (*buflen >= sizeof (*ep)) && ep->ip))
3542 ep->is_ip4 = session->transport.is_ip4;
3543 ep->port = session->transport.rmt_port;
3544 if (session->transport.is_ip4)
3545 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3546 sizeof (ip4_address_t));
3548 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3549 sizeof (ip6_address_t));
3550 *buflen = sizeof (*ep);
3552 "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3553 "addr = %U, port %u",
3554 session_handle, ep->is_ip4, vcl_format_ip46_address,
3555 &session->transport.rmt_ip,
3556 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3557 clib_net_to_host_u16 (ep->port));
3563 case VPPCOM_ATTR_GET_LCL_ADDR:
3564 if (PREDICT_TRUE (buffer && buflen &&
3565 (*buflen >= sizeof (*ep)) && ep->ip))
3567 ep->is_ip4 = session->transport.is_ip4;
3568 ep->port = session->transport.lcl_port;
3569 if (session->transport.is_ip4)
3570 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3571 sizeof (ip4_address_t));
3573 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3574 sizeof (ip6_address_t));
3575 *buflen = sizeof (*ep);
3577 "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3579 session_handle, ep->is_ip4, vcl_format_ip46_address,
3580 &session->transport.lcl_ip,
3581 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3582 clib_net_to_host_u16 (ep->port));
3588 case VPPCOM_ATTR_SET_LCL_ADDR:
3589 if (PREDICT_TRUE (buffer && buflen &&
3590 (*buflen >= sizeof (*ep)) && ep->ip))
3592 session->transport.is_ip4 = ep->is_ip4;
3593 session->transport.lcl_port = ep->port;
3594 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3595 *buflen = sizeof (*ep);
3597 "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3599 session_handle, ep->is_ip4, vcl_format_ip46_address,
3600 &session->transport.lcl_ip,
3601 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3602 clib_net_to_host_u16 (ep->port));
3608 case VPPCOM_ATTR_GET_LIBC_EPFD:
3609 rv = session->libc_epfd;
3610 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3613 case VPPCOM_ATTR_SET_LIBC_EPFD:
3614 if (PREDICT_TRUE (buffer && buflen &&
3615 (*buflen == sizeof (session->libc_epfd))))
3617 session->libc_epfd = *(int *) buffer;
3618 *buflen = sizeof (session->libc_epfd);
3620 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3621 session->libc_epfd, *buflen);
3627 case VPPCOM_ATTR_GET_PROTOCOL:
3628 if (buffer && buflen && (*buflen >= sizeof (int)))
3630 *(int *) buffer = session->session_type;
3631 *buflen = sizeof (int);
3633 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3634 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3640 case VPPCOM_ATTR_GET_LISTEN:
3641 if (buffer && buflen && (*buflen >= sizeof (int)))
3643 *(int *) buffer = vcl_session_has_attr (session,
3644 VCL_SESS_ATTR_LISTEN);
3645 *buflen = sizeof (int);
3647 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3654 case VPPCOM_ATTR_GET_ERROR:
3655 if (buffer && buflen && (*buflen >= sizeof (int)))
3657 *(int *) buffer = 0;
3658 *buflen = sizeof (int);
3660 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3661 *(int *) buffer, *buflen);
3667 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3668 if (buffer && buflen && (*buflen >= sizeof (u32)))
3672 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3674 svm_fifo_size (session->tx_fifo) :
3675 vcm->cfg.tx_fifo_size);
3676 *buflen = sizeof (u32);
3678 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3679 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3686 case VPPCOM_ATTR_SET_DSCP:
3687 if (buffer && buflen && (*buflen >= sizeof (u8)))
3689 session->dscp = *(u8 *) buffer;
3691 VDBG (2, "VPPCOM_ATTR_SET_DSCP: %u (0x%x), buflen %d,",
3692 *(u8 *) buffer, *(u8 *) buffer, *buflen);
3698 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3699 if (buffer && buflen && (*buflen == sizeof (u32)))
3702 session->sndbuf_size = *(u32 *) buffer;
3703 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3704 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3711 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3712 if (buffer && buflen && (*buflen >= sizeof (u32)))
3716 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3718 svm_fifo_size (session->rx_fifo) :
3719 vcm->cfg.rx_fifo_size);
3720 *buflen = sizeof (u32);
3722 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3723 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3729 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3730 if (buffer && buflen && (*buflen == sizeof (u32)))
3733 session->rcvbuf_size = *(u32 *) buffer;
3734 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3735 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3742 case VPPCOM_ATTR_GET_REUSEADDR:
3743 if (buffer && buflen && (*buflen >= sizeof (int)))
3746 *(int *) buffer = vcl_session_has_attr (session,
3747 VCL_SESS_ATTR_REUSEADDR);
3748 *buflen = sizeof (int);
3750 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3751 *(int *) buffer, *buflen);
3757 case VPPCOM_ATTR_SET_REUSEADDR:
3758 if (buffer && buflen && (*buflen == sizeof (int)) &&
3759 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3762 if (*(int *) buffer)
3763 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3765 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3767 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3768 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3775 case VPPCOM_ATTR_GET_REUSEPORT:
3776 if (buffer && buflen && (*buflen >= sizeof (int)))
3779 *(int *) buffer = vcl_session_has_attr (session,
3780 VCL_SESS_ATTR_REUSEPORT);
3781 *buflen = sizeof (int);
3783 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3784 *(int *) buffer, *buflen);
3790 case VPPCOM_ATTR_SET_REUSEPORT:
3791 if (buffer && buflen && (*buflen == sizeof (int)) &&
3792 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3795 if (*(int *) buffer)
3796 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3798 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3800 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3801 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3808 case VPPCOM_ATTR_GET_BROADCAST:
3809 if (buffer && buflen && (*buflen >= sizeof (int)))
3812 *(int *) buffer = vcl_session_has_attr (session,
3813 VCL_SESS_ATTR_BROADCAST);
3814 *buflen = sizeof (int);
3816 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3817 *(int *) buffer, *buflen);
3823 case VPPCOM_ATTR_SET_BROADCAST:
3824 if (buffer && buflen && (*buflen == sizeof (int)))
3827 if (*(int *) buffer)
3828 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3830 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3832 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3833 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3840 case VPPCOM_ATTR_GET_V6ONLY:
3841 if (buffer && buflen && (*buflen >= sizeof (int)))
3844 *(int *) buffer = vcl_session_has_attr (session,
3845 VCL_SESS_ATTR_V6ONLY);
3846 *buflen = sizeof (int);
3848 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3849 *(int *) buffer, *buflen);
3855 case VPPCOM_ATTR_SET_V6ONLY:
3856 if (buffer && buflen && (*buflen == sizeof (int)))
3859 if (*(int *) buffer)
3860 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3862 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3864 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3865 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3872 case VPPCOM_ATTR_GET_KEEPALIVE:
3873 if (buffer && buflen && (*buflen >= sizeof (int)))
3876 *(int *) buffer = vcl_session_has_attr (session,
3877 VCL_SESS_ATTR_KEEPALIVE);
3878 *buflen = sizeof (int);
3880 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3881 *(int *) buffer, *buflen);
3887 case VPPCOM_ATTR_SET_KEEPALIVE:
3888 if (buffer && buflen && (*buflen == sizeof (int)))
3891 if (*(int *) buffer)
3892 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3894 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3896 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3897 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3904 case VPPCOM_ATTR_GET_TCP_NODELAY:
3905 if (buffer && buflen && (*buflen >= sizeof (int)))
3908 *(int *) buffer = vcl_session_has_attr (session,
3909 VCL_SESS_ATTR_TCP_NODELAY);
3910 *buflen = sizeof (int);
3912 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3913 *(int *) buffer, *buflen);
3919 case VPPCOM_ATTR_SET_TCP_NODELAY:
3920 if (buffer && buflen && (*buflen == sizeof (int)))
3923 if (*(int *) buffer)
3924 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3926 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3928 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3929 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3936 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3937 if (buffer && buflen && (*buflen >= sizeof (int)))
3940 *(int *) buffer = vcl_session_has_attr (session,
3941 VCL_SESS_ATTR_TCP_KEEPIDLE);
3942 *buflen = sizeof (int);
3944 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3945 *(int *) buffer, *buflen);
3951 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3952 if (buffer && buflen && (*buflen == sizeof (int)))
3955 if (*(int *) buffer)
3956 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3958 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3960 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3961 vcl_session_has_attr (session,
3962 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3968 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3969 if (buffer && buflen && (*buflen >= sizeof (int)))
3972 *(int *) buffer = vcl_session_has_attr (session,
3973 VCL_SESS_ATTR_TCP_KEEPINTVL);
3974 *buflen = sizeof (int);
3976 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3977 *(int *) buffer, *buflen);
3983 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3984 if (buffer && buflen && (*buflen == sizeof (int)))
3987 if (*(int *) buffer)
3988 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3990 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3992 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3993 vcl_session_has_attr (session,
3994 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
4000 case VPPCOM_ATTR_GET_TCP_USER_MSS:
4001 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4007 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4008 tea.mss = *(u32 *) buffer;
4009 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
4010 rv = VPPCOM_ENOPROTOOPT;
4014 *(u32 *) buffer = tea.mss;
4015 *buflen = sizeof (int);
4018 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
4021 case VPPCOM_ATTR_SET_TCP_USER_MSS:
4022 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4028 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4029 tea.mss = *(u32 *) buffer;
4030 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
4031 rv = VPPCOM_ENOPROTOOPT;
4033 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
4037 case VPPCOM_ATTR_SET_CONNECTED:
4038 session->flags |= VCL_SESSION_F_CONNECTED;
4041 case VPPCOM_ATTR_SET_CKPAIR:
4042 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
4043 !vcl_session_has_crypto (session))
4048 if (!session->ext_config)
4050 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_CRYPTO,
4051 sizeof (transport_endpt_ext_cfg_t));
4053 else if (session->ext_config->type != TRANSPORT_ENDPT_EXT_CFG_CRYPTO)
4059 session->ext_config->crypto.ckpair_index = *(uint32_t *) buffer;
4062 case VPPCOM_ATTR_SET_VRF:
4063 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4068 session->vrf = *(u32 *) buffer;
4071 case VPPCOM_ATTR_GET_VRF:
4072 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4077 *(u32 *) buffer = session->vrf;
4078 *buflen = sizeof (u32);
4081 case VPPCOM_ATTR_GET_DOMAIN:
4082 if (!(buffer && buflen && (*buflen >= sizeof (int))))
4088 if (session->transport.is_ip4)
4089 *(int *) buffer = AF_INET;
4091 *(int *) buffer = AF_INET6;
4092 *buflen = sizeof (int);
4094 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
4098 case VPPCOM_ATTR_SET_ENDPT_EXT_CFG:
4099 if (!(buffer && buflen && (*buflen > 0)))
4104 if (session->ext_config)
4109 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_NONE,
4110 *buflen + sizeof (u32));
4111 clib_memcpy (session->ext_config->data, buffer, *buflen);
4112 session->ext_config->len = *buflen;
4114 case VPPCOM_ATTR_SET_IP_PKTINFO:
4115 if (buffer && buflen && (*buflen == sizeof (int)) &&
4116 !vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO))
4118 if (*(int *) buffer)
4119 vcl_session_set_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4121 vcl_session_clear_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4123 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d",
4124 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO),
4131 case VPPCOM_ATTR_GET_IP_PKTINFO:
4132 if (buffer && buflen && (*buflen >= sizeof (int)))
4135 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4136 *buflen = sizeof (int);
4138 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d", *(int *) buffer,
4154 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
4155 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4157 vcl_worker_t *wrk = vcl_worker_get_current ();
4158 vcl_session_t *session;
4162 rv = vppcom_session_read (session_handle, buffer, buflen);
4163 else if (flags & MSG_PEEK)
4164 rv = vppcom_session_peek (session_handle, buffer, buflen);
4167 VDBG (0, "Unsupport flags for recvfrom %d", flags);
4168 return VPPCOM_EAFNOSUPPORT;
4173 session = vcl_session_get_w_handle (wrk, session_handle);
4174 if (session->transport.is_ip4)
4175 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
4176 sizeof (ip4_address_t));
4178 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
4179 sizeof (ip6_address_t));
4180 ep->is_ip4 = session->transport.is_ip4;
4181 ep->port = session->transport.rmt_port;
4188 vcl_handle_ep_app_tlvs (vcl_session_t *s, vppcom_endpt_t *ep)
4190 vppcom_endpt_tlv_t *tlv = ep->app_tlvs;
4194 switch (tlv->data_type)
4196 case VCL_UDP_SEGMENT:
4197 s->gso_size = *(u16 *) tlv->data;
4199 case VCL_IP_PKTINFO:
4200 clib_memcpy_fast (&s->transport.lcl_ip, (ip4_address_t *) tlv->data,
4201 sizeof (ip4_address_t));
4204 VDBG (0, "Ignorning unsupported app tlv %u", tlv->data_type);
4207 tlv = VCL_EP_NEXT_APP_TLV (ep, tlv);
4213 vppcom_session_sendto (uint32_t session_handle, void *buffer,
4214 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4216 vcl_worker_t *wrk = vcl_worker_get_current ();
4219 s = vcl_session_get_w_handle (wrk, session_handle);
4220 if (PREDICT_FALSE (!s))
4221 return VPPCOM_EBADFD;
4225 if (!vcl_session_is_cl (s))
4226 return VPPCOM_EINVAL;
4228 s->transport.is_ip4 = ep->is_ip4;
4229 s->transport.rmt_port = ep->port;
4230 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
4233 vcl_handle_ep_app_tlvs (s, ep);
4235 /* Session not connected/bound in vpp. Create it by 'connecting' it */
4236 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
4238 u32 session_index = s->session_index;
4239 f64 timeout = vcm->cfg.session_timeout;
4242 vcl_send_session_connect (wrk, s);
4243 rv = vppcom_wait_for_session_state_change (session_index,
4248 s = vcl_session_get (wrk, session_index);
4254 // TBD check the flags and do the right thing
4255 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
4258 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
4259 s->is_dgram ? 1 : 0));
4263 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
4265 vcl_worker_t *wrk = vcl_worker_get_current ();
4266 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
4267 u32 i, keep_trying = 1;
4268 svm_msg_q_msg_t msg;
4272 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
4275 return VPPCOM_EFAULT;
4279 vcl_session_t *session;
4281 /* Dequeue all events and drop all unhandled io events */
4282 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
4284 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
4285 vcl_handle_mq_event (wrk, e);
4286 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
4288 vec_reset_length (wrk->unhandled_evts_vector);
4290 for (i = 0; i < n_sids; i++)
4292 session = vcl_session_get (wrk, vp[i].sh);
4295 vp[i].revents = POLLHUP;
4302 if (POLLIN & vp[i].events)
4304 rv = vcl_session_read_ready (session);
4307 vp[i].revents |= POLLIN;
4314 case VPPCOM_ECONNRESET:
4315 vp[i].revents = POLLHUP;
4319 vp[i].revents = POLLERR;
4326 if (POLLOUT & vp[i].events)
4328 rv = vcl_session_write_ready (session);
4331 vp[i].revents |= POLLOUT;
4338 case VPPCOM_ECONNRESET:
4339 vp[i].revents = POLLHUP;
4343 vp[i].revents = POLLERR;
4350 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
4352 vp[i].revents = POLLNVAL;
4356 if (wait_for_time != -1)
4357 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
4359 while ((num_ev == 0) && keep_trying);
4365 vppcom_mq_epoll_fd (void)
4367 vcl_worker_t *wrk = vcl_worker_get_current ();
4368 return wrk->mqs_epfd;
4372 vppcom_session_index (vcl_session_handle_t session_handle)
4374 return session_handle & 0xFFFFFF;
4378 vppcom_session_worker (vcl_session_handle_t session_handle)
4380 return session_handle >> 24;
4384 vppcom_worker_register (void)
4386 if (!vcl_worker_alloc_and_init ())
4387 return VPPCOM_EEXIST;
4389 if (vcl_worker_register_with_vpp ())
4390 return VPPCOM_EEXIST;
4396 vppcom_worker_unregister (void)
4398 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
4399 vcl_set_worker_index (~0);
4403 vppcom_worker_index_set (int index)
4405 vcl_set_worker_index (index);
4409 vppcom_worker_index (void)
4411 return vcl_get_worker_index ();
4415 vppcom_worker_mqs_epfd (void)
4417 vcl_worker_t *wrk = vcl_worker_get_current ();
4418 if (!vcm->cfg.use_mq_eventfd)
4420 return wrk->mqs_epfd;
4424 vppcom_session_is_connectable_listener (uint32_t session_handle)
4426 vcl_session_t *session;
4427 vcl_worker_t *wrk = vcl_worker_get_current ();
4428 session = vcl_session_get_w_handle (wrk, session_handle);
4430 return VPPCOM_EBADFD;
4431 return vcl_session_is_connectable_listener (wrk, session);
4435 vppcom_session_listener (uint32_t session_handle)
4437 vcl_worker_t *wrk = vcl_worker_get_current ();
4438 vcl_session_t *listen_session, *session;
4439 session = vcl_session_get_w_handle (wrk, session_handle);
4441 return VPPCOM_EBADFD;
4442 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
4443 return VPPCOM_EBADFD;
4444 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4445 if (!listen_session)
4446 return VPPCOM_EBADFD;
4447 return vcl_session_handle (listen_session);
4451 vppcom_session_n_accepted (uint32_t session_handle)
4453 vcl_worker_t *wrk = vcl_worker_get_current ();
4454 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4456 return VPPCOM_EBADFD;
4457 return session->n_accepted_sessions;
4461 vppcom_proto_str (vppcom_proto_t proto)
4463 char const *proto_str;
4467 case VPPCOM_PROTO_TCP:
4470 case VPPCOM_PROTO_UDP:
4473 case VPPCOM_PROTO_TLS:
4476 case VPPCOM_PROTO_QUIC:
4479 case VPPCOM_PROTO_DTLS:
4482 case VPPCOM_PROTO_SRTP:
4486 proto_str = "UNKNOWN";
4493 vppcom_retval_str (int retval)
4504 st = "VPPCOM_EAGAIN";
4508 st = "VPPCOM_EFAULT";
4512 st = "VPPCOM_ENOMEM";
4516 st = "VPPCOM_EINVAL";
4520 st = "VPPCOM_EBADFD";
4523 case VPPCOM_EAFNOSUPPORT:
4524 st = "VPPCOM_EAFNOSUPPORT";
4527 case VPPCOM_ECONNABORTED:
4528 st = "VPPCOM_ECONNABORTED";
4531 case VPPCOM_ECONNRESET:
4532 st = "VPPCOM_ECONNRESET";
4535 case VPPCOM_ENOTCONN:
4536 st = "VPPCOM_ENOTCONN";
4539 case VPPCOM_ECONNREFUSED:
4540 st = "VPPCOM_ECONNREFUSED";
4543 case VPPCOM_ETIMEDOUT:
4544 st = "VPPCOM_ETIMEDOUT";
4547 case VPPCOM_EADDRINUSE:
4548 st = "VPPCOM_EADDRINUSE";
4552 st = "UNKNOWN_STATE";
4560 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4562 if (vcm->cfg.vpp_app_socket_api)
4563 return vcl_sapi_add_cert_key_pair (ckpair);
4565 return vcl_bapi_add_cert_key_pair (ckpair);
4569 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4571 if (vcm->cfg.vpp_app_socket_api)
4572 return vcl_sapi_del_cert_key_pair (ckpair_index);
4574 return vcl_bapi_del_cert_key_pair (ckpair_index);
4578 vppcom_session_get_error (uint32_t session_handle)
4580 vcl_worker_t *wrk = vcl_worker_get_current ();
4581 vcl_session_t *session = 0;
4583 session = vcl_session_get_w_handle (wrk, session_handle);
4585 return VPPCOM_EBADFD;
4587 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
4589 VWRN ("epoll session %u! will not have connect", session->session_index);
4590 return VPPCOM_EBADFD;
4593 if (session->vpp_error == SESSION_E_PORTINUSE)
4594 return VPPCOM_EADDRINUSE;
4595 else if (session->vpp_error == SESSION_E_REFUSED)
4596 return VPPCOM_ECONNREFUSED;
4597 else if (session->vpp_error != SESSION_E_NONE)
4598 return VPPCOM_EFAULT;
4604 vppcom_worker_is_detached (void)
4606 vcl_worker_t *wrk = vcl_worker_get_current ();
4608 if (!vcm->cfg.use_mq_eventfd)
4609 return VPPCOM_ENOTSUP;
4611 return wrk->api_client_handle == ~0;
4615 * fd.io coding-style-patch-verification: ON
4618 * eval: (c-set-style "gnu")