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 if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX)
1470 wrk->ep_lt_current = s->session_index;
1471 s->vep.lt_next = s->session_index;
1472 s->vep.lt_prev = s->session_index;
1476 cur = vcl_session_get (wrk, wrk->ep_lt_current);
1477 prev = vcl_session_get (wrk, cur->vep.lt_prev);
1479 prev->vep.lt_next = s->session_index;
1480 s->vep.lt_prev = prev->session_index;
1482 s->vep.lt_next = cur->session_index;
1483 cur->vep.lt_prev = s->session_index;
1487 vcl_epoll_lt_del (vcl_worker_t *wrk, vcl_session_t *s)
1489 vcl_session_t *prev, *next;
1491 if (s->vep.lt_next == s->session_index)
1493 wrk->ep_lt_current = VCL_INVALID_SESSION_INDEX;
1494 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1498 prev = vcl_session_get (wrk, s->vep.lt_prev);
1499 next = vcl_session_get (wrk, s->vep.lt_next);
1501 prev->vep.lt_next = next->session_index;
1502 next->vep.lt_prev = prev->session_index;
1504 if (s->session_index == wrk->ep_lt_current)
1505 wrk->ep_lt_current = s->vep.lt_next;
1507 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1511 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1512 vcl_session_handle_t sh, u8 do_disconnect)
1516 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1518 if (s->flags & VCL_SESSION_F_IS_VEP)
1520 u32 next_sh = s->vep.next_sh;
1521 while (next_sh != ~0)
1523 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1524 if (PREDICT_FALSE (rv < 0))
1525 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1526 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1527 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1528 next_sh = s->vep.next_sh;
1533 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1535 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1537 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1538 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1539 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1544 VDBG (1, "session %u [0x%llx] disconnect skipped",
1545 s->session_index, s->vpp_handle);
1549 if (s->session_state == VCL_STATE_LISTEN)
1551 rv = vppcom_session_unbind (sh);
1552 if (PREDICT_FALSE (rv < 0))
1553 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1554 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1555 vppcom_retval_str (rv));
1558 else if (vcl_session_is_ready (s)
1559 || (vcl_session_is_connectable_listener (wrk, s)))
1561 rv = vppcom_session_disconnect (sh);
1562 if (PREDICT_FALSE (rv < 0))
1563 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1564 " rv %d (%s)", s->session_index, s->vpp_handle,
1565 rv, vppcom_retval_str (rv));
1567 else if (s->session_state == VCL_STATE_DISCONNECT)
1569 vcl_send_session_reset_reply (wrk, s, 0);
1571 else if (s->session_state == VCL_STATE_DETACHED)
1573 VDBG (0, "vpp freed session %d before close", s->session_index);
1575 if (!(s->flags & VCL_SESSION_F_PENDING_DISCONNECT))
1578 /* Disconnect/reset messages pending but vpp transport and session
1579 * cleanups already done. Free only after messages drained. */
1580 s->flags |= VCL_SESSION_F_PENDING_FREE;
1583 s->session_state = VCL_STATE_CLOSED;
1585 /* Session is removed only after vpp confirms the disconnect */
1589 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1591 vcl_session_free (wrk, s);
1592 vcl_evt (VCL_EVT_CLOSE, s, rv);
1598 vppcom_session_close (uint32_t session_handle)
1600 vcl_worker_t *wrk = vcl_worker_get_current ();
1601 vcl_session_t *session;
1603 session = vcl_session_get_w_handle (wrk, session_handle);
1605 return VPPCOM_EBADFD;
1606 return vcl_session_cleanup (wrk, session, session_handle,
1607 1 /* do_disconnect */ );
1611 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1613 vcl_worker_t *wrk = vcl_worker_get_current ();
1614 vcl_session_t *session = 0;
1617 return VPPCOM_EINVAL;
1619 session = vcl_session_get_w_handle (wrk, session_handle);
1621 return VPPCOM_EBADFD;
1623 if (session->flags & VCL_SESSION_F_IS_VEP)
1625 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1626 session->session_index);
1627 return VPPCOM_EBADFD;
1630 session->transport.is_ip4 = ep->is_ip4;
1632 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1633 sizeof (ip4_address_t));
1635 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1636 sizeof (ip6_address_t));
1637 session->transport.lcl_port = ep->port;
1640 "session %u handle %u: binding to local %s address %U port %u, "
1642 session->session_index, session_handle,
1643 session->transport.is_ip4 ? "IPv4" : "IPv6", vcl_format_ip46_address,
1644 &session->transport.lcl_ip,
1645 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1646 clib_net_to_host_u16 (session->transport.lcl_port),
1647 vppcom_proto_str (session->session_type));
1648 vcl_evt (VCL_EVT_BIND, session);
1650 if (session->session_type == VPPCOM_PROTO_UDP)
1651 vppcom_session_listen (session_handle, 10);
1657 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1659 vcl_worker_t *wrk = vcl_worker_get_current ();
1660 vcl_session_t *listen_session = 0;
1661 u64 listen_vpp_handle;
1664 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1665 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1666 return VPPCOM_EBADFD;
1668 listen_vpp_handle = listen_session->vpp_handle;
1669 if (listen_session->session_state == VCL_STATE_LISTEN)
1671 VDBG (0, "session %u [0x%llx]: already in listen state!",
1672 listen_sh, listen_vpp_handle);
1676 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1679 * Send listen request to vpp and wait for reply
1681 vcl_send_session_listen (wrk, listen_session);
1682 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1684 vcm->cfg.session_timeout);
1686 if (PREDICT_FALSE (rv))
1688 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1689 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1690 listen_sh, listen_session->vpp_handle, rv,
1691 vppcom_retval_str (rv));
1699 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1701 if (!strcmp (proto_str, "TCP"))
1702 *proto = VPPCOM_PROTO_TCP;
1703 else if (!strcmp (proto_str, "tcp"))
1704 *proto = VPPCOM_PROTO_TCP;
1705 else if (!strcmp (proto_str, "UDP"))
1706 *proto = VPPCOM_PROTO_UDP;
1707 else if (!strcmp (proto_str, "udp"))
1708 *proto = VPPCOM_PROTO_UDP;
1709 else if (!strcmp (proto_str, "TLS"))
1710 *proto = VPPCOM_PROTO_TLS;
1711 else if (!strcmp (proto_str, "tls"))
1712 *proto = VPPCOM_PROTO_TLS;
1713 else if (!strcmp (proto_str, "QUIC"))
1714 *proto = VPPCOM_PROTO_QUIC;
1715 else if (!strcmp (proto_str, "quic"))
1716 *proto = VPPCOM_PROTO_QUIC;
1717 else if (!strcmp (proto_str, "DTLS"))
1718 *proto = VPPCOM_PROTO_DTLS;
1719 else if (!strcmp (proto_str, "dtls"))
1720 *proto = VPPCOM_PROTO_DTLS;
1721 else if (!strcmp (proto_str, "SRTP"))
1722 *proto = VPPCOM_PROTO_SRTP;
1723 else if (!strcmp (proto_str, "srtp"))
1724 *proto = VPPCOM_PROTO_SRTP;
1731 vppcom_session_accept (uint32_t ls_handle, vppcom_endpt_t *ep, uint32_t flags)
1733 u32 client_session_index = ~0, ls_index, accept_flags = 0;
1734 vcl_worker_t *wrk = vcl_worker_get_current ();
1735 session_accepted_msg_t accepted_msg;
1736 vcl_session_t *ls, *client_session = 0;
1737 vcl_session_msg_t *evt;
1742 ls = vcl_session_get_w_handle (wrk, ls_handle);
1744 return VPPCOM_EBADFD;
1746 if ((ls->session_state != VCL_STATE_LISTEN) &&
1747 (ls->session_state != VCL_STATE_LISTEN_NO_MQ) &&
1748 (!vcl_session_is_connectable_listener (wrk, ls)))
1750 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state (%s)",
1751 ls->vpp_handle, vcl_session_state_str (ls->session_state));
1752 return VPPCOM_EBADFD;
1755 ls_index = ls->session_index;
1757 if (clib_fifo_elts (ls->accept_evts_fifo))
1759 clib_fifo_sub2 (ls->accept_evts_fifo, evt);
1760 accept_flags = evt->flags;
1761 accepted_msg = evt->accepted_msg;
1765 is_nonblocking = vcl_session_has_attr (ls, VCL_SESS_ATTR_NONBLOCK);
1768 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1769 return VPPCOM_EAGAIN;
1771 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1772 vcl_worker_flush_mq_events (wrk);
1778 client_session_index =
1779 vcl_session_accepted_handler (wrk, &accepted_msg, ls_index);
1780 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1781 return VPPCOM_ECONNABORTED;
1783 ls = vcl_session_get (wrk, ls_index);
1784 client_session = vcl_session_get (wrk, client_session_index);
1786 if (flags & O_NONBLOCK)
1787 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1790 "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1791 " flags %d, is_nonblocking %u",
1792 ls->session_index, ls->vpp_handle, client_session_index,
1793 client_session->vpp_handle, flags,
1794 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1798 ep->is_ip4 = client_session->transport.is_ip4;
1799 ep->port = client_session->transport.rmt_port;
1800 if (client_session->transport.is_ip4)
1801 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1802 sizeof (ip4_address_t));
1804 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1805 sizeof (ip6_address_t));
1809 "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1811 ls_handle, ls->vpp_handle, client_session_index,
1812 client_session->vpp_handle, vcl_format_ip46_address,
1813 &client_session->transport.rmt_ip,
1814 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1815 clib_net_to_host_u16 (client_session->transport.rmt_port),
1816 vcl_format_ip46_address, &client_session->transport.lcl_ip,
1817 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1818 clib_net_to_host_u16 (client_session->transport.lcl_port));
1819 vcl_evt (VCL_EVT_ACCEPT, client_session, ls, client_session_index);
1822 * Session might have been closed already
1826 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1827 client_session->session_state = VCL_STATE_VPP_CLOSING;
1828 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1829 client_session->session_state = VCL_STATE_DISCONNECT;
1831 return vcl_session_handle (client_session);
1835 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1837 vcl_worker_t *wrk = vcl_worker_get_current ();
1838 vcl_session_t *session = 0;
1842 session = vcl_session_get_w_handle (wrk, session_handle);
1844 return VPPCOM_EBADFD;
1845 session_index = session->session_index;
1847 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1849 VWRN ("cannot connect epoll session %u!", session->session_index);
1850 return VPPCOM_EBADFD;
1853 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1856 "session %u [0x%llx]: already connected to %U:%d proto %s,"
1858 session->session_index, session->vpp_handle,
1859 vcl_format_ip46_address, &session->transport.rmt_ip,
1860 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1861 clib_net_to_host_u16 (session->transport.rmt_port),
1862 vppcom_proto_str (session->session_type),
1863 vcl_session_state_str (session->session_state));
1867 /* Attempt to connect a connectionless listener */
1868 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1870 if (session->session_type != VPPCOM_PROTO_UDP)
1871 return VPPCOM_EINVAL;
1872 vcl_send_session_unlisten (wrk, session);
1873 session->session_state = VCL_STATE_CLOSED;
1876 session->transport.is_ip4 = server_ep->is_ip4;
1877 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1878 session->transport.rmt_port = server_ep->port;
1879 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1880 session->flags |= VCL_SESSION_F_CONNECTED;
1882 VDBG (0, "session %u: connecting to peer %U:%d proto %s",
1883 session->session_index, vcl_format_ip46_address,
1884 &session->transport.rmt_ip,
1885 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1886 clib_net_to_host_u16 (session->transport.rmt_port),
1887 vppcom_proto_str (session->session_type));
1889 vcl_send_session_connect (wrk, session);
1891 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1893 /* State set to STATE_UPDATED to ensure the session is not assumed
1894 * to be ready and to also allow the app to close it prior to vpp's
1895 * connected reply. */
1896 session->session_state = VCL_STATE_UPDATED;
1897 return VPPCOM_EINPROGRESS;
1901 * Wait for reply from vpp if blocking
1903 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1904 vcm->cfg.session_timeout);
1906 session = vcl_session_get (wrk, session_index);
1907 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1908 session->vpp_handle, rv ? "failed" : "succeeded");
1914 vppcom_session_stream_connect (uint32_t session_handle,
1915 uint32_t parent_session_handle)
1917 vcl_worker_t *wrk = vcl_worker_get_current ();
1918 vcl_session_t *session, *parent_session;
1919 u32 session_index, parent_session_index;
1922 session = vcl_session_get_w_handle (wrk, session_handle);
1924 return VPPCOM_EBADFD;
1925 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1926 if (!parent_session)
1927 return VPPCOM_EBADFD;
1929 session_index = session->session_index;
1930 parent_session_index = parent_session->session_index;
1931 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1933 VDBG (0, "ERROR: cannot connect epoll session %u!",
1934 session->session_index);
1935 return VPPCOM_EBADFD;
1938 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1941 "session handle %u [0x%llx]: session already "
1942 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1943 session_handle, session->vpp_handle, parent_session_handle,
1944 parent_session->vpp_handle,
1945 vppcom_proto_str (session->session_type), session->session_state,
1946 vcl_session_state_str (session->session_state));
1950 /* Connect to quic session specifics */
1951 session->transport.is_ip4 = parent_session->transport.is_ip4;
1952 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1953 session->transport.rmt_port = 0;
1954 session->parent_handle = parent_session->vpp_handle;
1956 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1957 session_handle, parent_session_handle, parent_session->vpp_handle);
1960 * Send connect request and wait for reply from vpp
1962 vcl_send_session_connect (wrk, session);
1963 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1964 vcm->cfg.session_timeout);
1966 session->listener_index = parent_session_index;
1967 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1969 parent_session->n_accepted_sessions++;
1971 session = vcl_session_get (wrk, session_index);
1972 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1973 session->vpp_handle, rv ? "failed" : "succeeded");
1979 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1982 vcl_worker_t *wrk = vcl_worker_get_current ();
1983 int rv, n_read = 0, is_nonblocking;
1984 vcl_session_t *s = 0;
1985 svm_fifo_t *rx_fifo;
1990 if (PREDICT_FALSE (!buf))
1991 return VPPCOM_EFAULT;
1993 s = vcl_session_get_w_handle (wrk, session_handle);
1994 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1995 return VPPCOM_EBADFD;
1997 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1999 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
2000 s->session_index, s->vpp_handle, s->session_state,
2001 vcl_session_state_str (s->session_state));
2002 return vcl_session_closed_error (s);
2005 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
2007 /* Vpp would ack the incoming data and enqueue it for reading.
2008 * So even if SHUT_RD is set, we can still read() the data if
2009 * the session is ready.
2011 if (!vcl_session_read_ready (s))
2017 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2018 is_ct = vcl_session_is_ct (s);
2019 mq = wrk->app_event_queue;
2020 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2021 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2023 if (svm_fifo_is_empty_cons (rx_fifo))
2027 if (vcl_session_is_closing (s))
2028 return vcl_session_closing_error (s);
2030 svm_fifo_unset_event (s->rx_fifo);
2031 svm_fifo_unset_event (rx_fifo);
2032 return VPPCOM_EWOULDBLOCK;
2034 while (svm_fifo_is_empty_cons (rx_fifo))
2036 if (vcl_session_is_closing (s))
2037 return vcl_session_closing_error (s);
2040 svm_fifo_unset_event (s->rx_fifo);
2041 svm_fifo_unset_event (rx_fifo);
2043 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2044 vcl_worker_flush_mq_events (wrk);
2051 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
2053 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
2062 if (svm_fifo_is_empty_cons (rx_fifo))
2065 svm_fifo_unset_event (s->rx_fifo);
2066 svm_fifo_unset_event (rx_fifo);
2067 if (!svm_fifo_is_empty_cons (rx_fifo)
2068 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
2070 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2071 e->event_type = SESSION_IO_EVT_RX;
2072 e->session_index = s->session_index;
2075 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
2077 /* More data enqueued while reading. Try to drain it
2078 * or fill the buffer. Avoid doing that for dgrams */
2084 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
2086 svm_fifo_clear_deq_ntf (rx_fifo);
2087 app_send_io_evt_to_vpp (s->vpp_evt_q,
2088 s->rx_fifo->shr->master_session_index,
2089 SESSION_IO_EVT_RX, SVM_Q_WAIT);
2092 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
2093 s->vpp_handle, n_read, rx_fifo);
2099 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
2101 return (vppcom_session_read_internal (session_handle, buf, n, 0));
2105 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
2107 return (vppcom_session_read_internal (session_handle, buf, n, 1));
2111 vppcom_session_read_segments (uint32_t session_handle,
2112 vppcom_data_segment_t * ds, uint32_t n_segments,
2115 vcl_worker_t *wrk = vcl_worker_get_current ();
2116 int n_read = 0, is_nonblocking;
2117 vcl_session_t *s = 0;
2118 svm_fifo_t *rx_fifo;
2122 s = vcl_session_get_w_handle (wrk, session_handle);
2123 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2124 return VPPCOM_EBADFD;
2126 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2127 return vcl_session_closed_error (s);
2129 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2130 is_ct = vcl_session_is_ct (s);
2131 mq = wrk->app_event_queue;
2132 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2133 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2135 if (svm_fifo_is_empty_cons (rx_fifo))
2140 svm_fifo_unset_event (s->rx_fifo);
2141 svm_fifo_unset_event (rx_fifo);
2142 return VPPCOM_EWOULDBLOCK;
2144 while (svm_fifo_is_empty_cons (rx_fifo))
2146 if (vcl_session_is_closing (s))
2147 return vcl_session_closing_error (s);
2150 svm_fifo_unset_event (s->rx_fifo);
2151 svm_fifo_unset_event (rx_fifo);
2153 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2154 vcl_worker_flush_mq_events (wrk);
2158 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2159 (svm_fifo_seg_t *) ds, &n_segments, max_bytes);
2161 return VPPCOM_EAGAIN;
2163 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2166 svm_fifo_unset_event (s->rx_fifo);
2167 svm_fifo_unset_event (rx_fifo);
2168 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2169 && svm_fifo_set_event (rx_fifo)
2170 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2173 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2174 e->event_type = SESSION_IO_EVT_RX;
2175 e->session_index = s->session_index;
2179 s->rx_bytes_pending += n_read;
2184 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2186 vcl_worker_t *wrk = vcl_worker_get_current ();
2190 s = vcl_session_get_w_handle (wrk, session_handle);
2191 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2194 is_ct = vcl_session_is_ct (s);
2195 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2197 ASSERT (s->rx_bytes_pending >= n_bytes);
2198 s->rx_bytes_pending -= n_bytes;
2202 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2204 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2206 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2212 vppcom_session_write_inline (vcl_worker_t *wrk, vcl_session_t *s, void *buf,
2213 size_t n, u8 is_flush, u8 is_dgram)
2215 int n_write, is_nonblocking;
2216 session_evt_type_t et;
2217 svm_fifo_t *tx_fifo;
2221 /* Accept zero length writes but just return */
2222 if (PREDICT_FALSE (!n))
2225 if (PREDICT_FALSE (!buf))
2226 return VPPCOM_EFAULT;
2228 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2230 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2231 " session!", s->session_index, s->vpp_handle);
2232 return VPPCOM_EBADFD;
2235 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2237 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2238 s->session_index, s->vpp_handle, s->session_state,
2239 vcl_session_state_str (s->session_state));
2240 return vcl_session_closed_error (s);;
2243 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_WR_SHUTDOWN))
2245 VDBG (1, "session %u [0x%llx]: is shutdown! state 0x%x (%s)",
2246 s->session_index, s->vpp_handle, s->session_state,
2247 vcl_session_state_str (s->session_state));
2248 return VPPCOM_EPIPE;
2251 is_ct = vcl_session_is_ct (s);
2252 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2253 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2255 mq = wrk->app_event_queue;
2256 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2260 return VPPCOM_EWOULDBLOCK;
2262 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2264 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2265 if (vcl_session_is_closing (s))
2266 return vcl_session_closing_error (s);
2268 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2269 vcl_worker_flush_mq_events (wrk);
2273 et = SESSION_IO_EVT_TX;
2274 if (is_flush && !is_ct)
2275 et = SESSION_IO_EVT_TX_FLUSH;
2279 app_send_dgram_raw_gso (tx_fifo, &s->transport, s->vpp_evt_q, buf, n,
2280 s->gso_size, et, 0 /* do_evt */, SVM_Q_WAIT);
2282 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2283 0 /* do_evt */ , SVM_Q_WAIT);
2285 if (svm_fifo_set_event (s->tx_fifo))
2286 app_send_io_evt_to_vpp (
2287 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2289 /* The underlying fifo segment can run out of memory */
2290 if (PREDICT_FALSE (n_write < 0))
2291 return VPPCOM_EAGAIN;
2293 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2294 s->vpp_handle, n_write);
2300 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2302 vcl_worker_t *wrk = vcl_worker_get_current ();
2305 s = vcl_session_get_w_handle (wrk, session_handle);
2306 if (PREDICT_FALSE (!s))
2307 return VPPCOM_EBADFD;
2309 return vppcom_session_write_inline (wrk, s, buf, n, 0 /* is_flush */,
2310 s->is_dgram ? 1 : 0);
2314 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2316 vcl_worker_t *wrk = vcl_worker_get_current ();
2319 s = vcl_session_get_w_handle (wrk, session_handle);
2320 if (PREDICT_FALSE (!s))
2321 return VPPCOM_EBADFD;
2323 return vppcom_session_write_inline (wrk, s, buf, n, 1 /* is_flush */,
2324 s->is_dgram ? 1 : 0);
2327 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2328 if (PREDICT_FALSE (!_s->rx_fifo)) \
2330 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2332 if (!vcl_session_is_ct (_s)) \
2334 svm_fifo_unset_event (_s->rx_fifo); \
2335 if (svm_fifo_is_empty (_s->rx_fifo)) \
2338 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2340 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2341 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2347 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2348 unsigned long n_bits, unsigned long *read_map,
2349 unsigned long *write_map,
2350 unsigned long *except_map, u32 * bits_set)
2352 session_disconnected_msg_t *disconnected_msg;
2353 session_connected_msg_t *connected_msg;
2357 switch (e->event_type)
2359 case SESSION_IO_EVT_RX:
2360 sid = e->session_index;
2361 s = vcl_session_get (wrk, sid);
2362 if (!s || !vcl_session_is_open (s))
2364 vcl_fifo_rx_evt_valid_or_break (s);
2365 if (sid < n_bits && read_map)
2367 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2371 case SESSION_IO_EVT_TX:
2372 sid = e->session_index;
2373 s = vcl_session_get (wrk, sid);
2374 if (!s || !vcl_session_is_open (s))
2376 if (sid < n_bits && write_map)
2378 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2382 case SESSION_CTRL_EVT_ACCEPTED:
2384 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2386 s = vcl_session_get (wrk, e->session_index);
2389 sid = s->session_index;
2390 if (sid < n_bits && read_map)
2392 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2396 case SESSION_CTRL_EVT_CONNECTED:
2399 connected_msg = (session_connected_msg_t *) e->data;
2400 sid = vcl_session_connected_handler (wrk, connected_msg);
2403 sid = e->session_index;
2404 if (sid == VCL_INVALID_SESSION_INDEX)
2406 if (sid < n_bits && write_map)
2408 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2412 case SESSION_CTRL_EVT_DISCONNECTED:
2413 disconnected_msg = (session_disconnected_msg_t *) e->data;
2414 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2417 sid = s->session_index;
2418 if (sid < n_bits && except_map)
2420 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2424 case SESSION_CTRL_EVT_RESET:
2425 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2426 if (sid < n_bits && except_map)
2428 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2432 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2433 vcl_session_unlisten_reply_handler (wrk, e->data);
2435 case SESSION_CTRL_EVT_MIGRATED:
2436 vcl_session_migrated_handler (wrk, e->data);
2438 case SESSION_CTRL_EVT_CLEANUP:
2439 vcl_session_cleanup_handler (wrk, e->data);
2441 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2442 vcl_session_worker_update_reply_handler (wrk, e->data);
2444 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2445 vcl_session_req_worker_update_handler (wrk, e->data);
2447 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2448 vcl_session_app_add_segment_handler (wrk, e->data);
2450 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2451 vcl_session_app_del_segment_handler (wrk, e->data);
2453 case SESSION_CTRL_EVT_APP_WRK_RPC:
2454 vcl_worker_rpc_handler (wrk, e->data);
2457 clib_warning ("unhandled: %u", e->event_type);
2463 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2464 unsigned long n_bits, unsigned long *read_map,
2465 unsigned long *write_map, unsigned long *except_map,
2466 double time_to_wait, u32 * bits_set)
2468 svm_msg_q_msg_t *msg;
2472 if (svm_msg_q_is_empty (mq))
2479 else if (time_to_wait < 0)
2480 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2483 if (svm_msg_q_timedwait (mq, time_to_wait))
2487 vcl_mq_dequeue_batch (wrk, mq, ~0);
2489 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2491 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2492 e = svm_msg_q_msg_data (mq, msg);
2493 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2494 except_map, bits_set);
2495 svm_msg_q_free_msg (mq, msg);
2497 vec_reset_length (wrk->mq_msg_vector);
2498 vcl_handle_pending_wrk_updates (wrk);
2503 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2504 vcl_si_set * read_map, vcl_si_set * write_map,
2505 vcl_si_set * except_map, double time_to_wait,
2508 double wait = 0, start = 0;
2512 wait = time_to_wait;
2513 start = clib_time_now (&wrk->clib_time);
2518 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2519 write_map, except_map, wait, bits_set);
2525 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2533 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2534 vcl_si_set * read_map, vcl_si_set * write_map,
2535 vcl_si_set * except_map, double time_to_wait,
2538 vcl_mq_evt_conn_t *mqc;
2539 int __clib_unused n_read;
2543 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
2545 vcl_api_retry_attach (wrk);
2549 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2550 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2551 vec_len (wrk->mq_events), time_to_wait);
2552 for (i = 0; i < n_mq_evts; i++)
2554 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
2556 vcl_api_handle_disconnect (wrk);
2560 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2561 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2562 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2563 except_map, 0, bits_set);
2566 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2570 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2571 vcl_si_set * except_map, double time_to_wait)
2573 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2574 vcl_worker_t *wrk = vcl_worker_get_current ();
2575 vcl_session_t *s = 0;
2578 if (n_bits && read_map)
2580 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2581 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2582 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2583 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2585 if (n_bits && write_map)
2587 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2588 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2589 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2590 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2592 if (n_bits && except_map)
2594 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2595 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2596 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2597 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2606 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2608 if (!(s = vcl_session_get (wrk, sid)))
2610 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2615 if (vcl_session_write_ready (s))
2617 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2622 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2623 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2631 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2633 if (!(s = vcl_session_get (wrk, sid)))
2635 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2640 if (vcl_session_read_ready (s))
2642 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2649 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2651 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2652 read_map, write_map, except_map, &bits_set);
2654 vec_reset_length (wrk->unhandled_evts_vector);
2656 if (vcm->cfg.use_mq_eventfd)
2657 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2658 time_to_wait, &bits_set);
2660 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2661 time_to_wait, &bits_set);
2667 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2669 vppcom_epoll_t *vep;
2670 u32 sh = vep_handle;
2673 if (VPPCOM_DEBUG <= 2)
2676 s = vcl_session_get_w_handle (wrk, vep_handle);
2677 if (PREDICT_FALSE (!s))
2679 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2682 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2684 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2688 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2691 " is_vep_session = %u\n"
2692 " next_sh = 0x%x (%u)\n"
2693 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2694 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2696 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2698 s = vcl_session_get_w_handle (wrk, sh);
2699 if (PREDICT_FALSE (!s))
2701 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2704 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2706 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2708 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2710 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2714 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2715 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2716 sh, s->vep.vep_sh, vep_handle);
2717 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2719 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2721 " next_sh = 0x%x (%u)\n"
2722 " prev_sh = 0x%x (%u)\n"
2723 " vep_sh = 0x%x (%u)\n"
2724 " ev.events = 0x%x\n"
2725 " ev.data.u64 = 0x%llx\n"
2728 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2729 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2730 vep->ev.data.u64, vep->et_mask);
2735 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2739 vppcom_epoll_create (void)
2741 vcl_worker_t *wrk = vcl_worker_get_current ();
2742 vcl_session_t *vep_session;
2744 vep_session = vcl_session_alloc (wrk);
2746 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2747 vep_session->vep.vep_sh = ~0;
2748 vep_session->vep.next_sh = ~0;
2749 vep_session->vep.prev_sh = ~0;
2750 vep_session->vpp_handle = ~0;
2752 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2753 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2755 return vcl_session_handle (vep_session);
2759 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2760 struct epoll_event *event)
2762 vcl_worker_t *wrk = vcl_worker_get_current ();
2763 int rv = VPPCOM_OK, add_evt = 0;
2764 vcl_session_t *vep_session;
2768 if (vep_handle == session_handle)
2770 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2771 return VPPCOM_EINVAL;
2774 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2775 if (PREDICT_FALSE (!vep_session))
2777 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2778 return VPPCOM_EBADFD;
2780 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2782 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2783 return VPPCOM_EINVAL;
2786 ASSERT (vep_session->vep.vep_sh == ~0);
2787 ASSERT (vep_session->vep.prev_sh == ~0);
2789 s = vcl_session_get_w_handle (wrk, session_handle);
2790 if (PREDICT_FALSE (!s))
2792 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2793 return VPPCOM_EBADFD;
2795 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2797 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2798 return VPPCOM_EINVAL;
2804 if (PREDICT_FALSE (!event))
2806 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2807 return VPPCOM_EINVAL;
2809 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2811 VDBG (0, "EPOLL_CTL_ADD: %u already epolled!", s->session_index);
2815 if (vep_session->vep.next_sh != ~0)
2817 vcl_session_t *next_session;
2818 next_session = vcl_session_get_w_handle (wrk,
2819 vep_session->vep.next_sh);
2820 if (PREDICT_FALSE (!next_session))
2822 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2823 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2824 return VPPCOM_EBADFD;
2826 ASSERT (next_session->vep.prev_sh == vep_handle);
2827 next_session->vep.prev_sh = session_handle;
2829 s->vep.next_sh = vep_session->vep.next_sh;
2830 s->vep.prev_sh = vep_handle;
2831 s->vep.vep_sh = vep_handle;
2832 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2833 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
2835 s->flags &= ~VCL_SESSION_F_IS_VEP;
2836 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2837 vep_session->vep.next_sh = session_handle;
2839 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2840 if (txf && (event->events & EPOLLOUT))
2841 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2843 /* Generate EPOLLOUT if tx fifo not full */
2844 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2846 session_event_t e = { 0 };
2847 e.event_type = SESSION_IO_EVT_TX;
2848 e.session_index = s->session_index;
2849 vec_add1 (wrk->unhandled_evts_vector, e);
2852 /* Generate EPOLLIN if rx fifo has data */
2853 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2855 session_event_t e = { 0 };
2856 e.event_type = SESSION_IO_EVT_RX;
2857 e.session_index = s->session_index;
2858 vec_add1 (wrk->unhandled_evts_vector, e);
2859 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2862 if (!add_evt && vcl_session_is_closing (s))
2864 session_event_t e = { 0 };
2865 if (s->session_state == VCL_STATE_VPP_CLOSING)
2866 e.event_type = SESSION_CTRL_EVT_DISCONNECTED;
2868 e.event_type = SESSION_CTRL_EVT_RESET;
2869 e.session_index = s->session_index;
2871 vec_add1 (wrk->unhandled_evts_vector, e);
2873 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2874 vep_handle, session_handle, event->events, event->data.u64);
2875 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2879 if (PREDICT_FALSE (!event))
2881 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2885 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2887 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2891 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2893 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2894 session_handle, s->vep.vep_sh, vep_handle);
2899 /* Generate EPOLLOUT if session write ready nd event was not on */
2900 if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT) &&
2901 (vcl_session_write_ready (s) > 0))
2903 session_event_t e = { 0 };
2904 e.event_type = SESSION_IO_EVT_TX;
2905 e.session_index = s->session_index;
2906 vec_add1 (wrk->unhandled_evts_vector, e);
2908 /* Generate EPOLLIN if session read ready and event was not on */
2909 if ((event->events & EPOLLIN) && !(s->vep.ev.events & EPOLLIN) &&
2910 (vcl_session_read_ready (s) > 0))
2912 session_event_t e = { 0 };
2913 e.event_type = SESSION_IO_EVT_RX;
2914 e.session_index = s->session_index;
2915 vec_add1 (wrk->unhandled_evts_vector, e);
2916 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2918 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2920 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2923 if (event->events & EPOLLOUT)
2924 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2926 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2928 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2929 vep_handle, session_handle, event->events, event->data.u64);
2933 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2935 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2939 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2941 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2942 session_handle, s->vep.vep_sh, vep_handle);
2947 if (s->vep.prev_sh == vep_handle)
2948 vep_session->vep.next_sh = s->vep.next_sh;
2951 vcl_session_t *prev_session;
2952 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2953 if (PREDICT_FALSE (!prev_session))
2955 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2956 s->vep.prev_sh, session_handle);
2957 return VPPCOM_EBADFD;
2959 ASSERT (prev_session->vep.next_sh == session_handle);
2960 prev_session->vep.next_sh = s->vep.next_sh;
2962 if (s->vep.next_sh != ~0)
2964 vcl_session_t *next_session;
2965 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2966 if (PREDICT_FALSE (!next_session))
2968 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2969 s->vep.next_sh, session_handle);
2970 return VPPCOM_EBADFD;
2972 ASSERT (next_session->vep.prev_sh == session_handle);
2973 next_session->vep.prev_sh = s->vep.prev_sh;
2976 if (s->vep.lt_next != VCL_INVALID_SESSION_INDEX)
2977 vcl_epoll_lt_del (wrk, s);
2979 memset (&s->vep, 0, sizeof (s->vep));
2980 s->vep.next_sh = ~0;
2981 s->vep.prev_sh = ~0;
2983 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
2984 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2986 if (vcl_session_is_open (s))
2988 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2990 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2993 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2995 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2999 VDBG (0, "Invalid operation (%d)!", op);
3003 vep_verify_epoll_chain (wrk, vep_handle);
3010 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
3011 struct epoll_event *events, u32 * num_ev)
3013 session_disconnected_msg_t *disconnected_msg;
3014 session_connected_msg_t *connected_msg;
3015 u32 sid = ~0, session_events;
3016 u64 session_evt_data = ~0;
3020 switch (e->event_type)
3022 case SESSION_IO_EVT_RX:
3023 sid = e->session_index;
3024 s = vcl_session_get (wrk, sid);
3025 if (vcl_session_is_closed (s))
3027 vcl_fifo_rx_evt_valid_or_break (s);
3028 session_events = s->vep.ev.events;
3029 if (!(EPOLLIN & s->vep.ev.events) ||
3030 (s->flags & VCL_SESSION_F_HAS_RX_EVT) ||
3031 (s->vep.lt_next != VCL_INVALID_SESSION_INDEX))
3034 events[*num_ev].events = EPOLLIN;
3035 session_evt_data = s->vep.ev.data.u64;
3036 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
3038 case SESSION_IO_EVT_TX:
3039 sid = e->session_index;
3040 s = vcl_session_get (wrk, sid);
3041 if (!s || !vcl_session_is_open (s))
3043 session_events = s->vep.ev.events;
3044 if (!(EPOLLOUT & session_events))
3047 events[*num_ev].events = EPOLLOUT;
3048 session_evt_data = s->vep.ev.data.u64;
3049 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
3050 s->ct_tx_fifo : s->tx_fifo);
3052 case SESSION_CTRL_EVT_ACCEPTED:
3054 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
3056 s = vcl_session_get (wrk, e->session_index);
3059 session_events = s->vep.ev.events;
3060 sid = s->session_index;
3061 if (!(EPOLLIN & session_events) ||
3062 (s->vep.lt_next != VCL_INVALID_SESSION_INDEX))
3065 events[*num_ev].events = EPOLLIN;
3066 session_evt_data = s->vep.ev.data.u64;
3068 case SESSION_CTRL_EVT_CONNECTED:
3071 connected_msg = (session_connected_msg_t *) e->data;
3072 sid = vcl_session_connected_handler (wrk, connected_msg);
3075 sid = e->session_index;
3076 s = vcl_session_get (wrk, sid);
3077 if (vcl_session_is_closed (s))
3079 session_events = s->vep.ev.events;
3080 /* Generate EPOLLOUT because there's no connected event */
3081 if (!(EPOLLOUT & session_events))
3083 /* We didn't have a fifo when the event was added */
3084 svm_fifo_add_want_deq_ntf (
3085 (vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo),
3086 SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3088 events[*num_ev].events = EPOLLOUT;
3089 session_evt_data = s->vep.ev.data.u64;
3090 if (s->session_state == VCL_STATE_DETACHED)
3091 events[*num_ev].events |= EPOLLHUP;
3093 case SESSION_CTRL_EVT_DISCONNECTED:
3096 disconnected_msg = (session_disconnected_msg_t *) e->data;
3097 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
3101 s = vcl_session_get (wrk, e->session_index);
3102 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3104 if (vcl_session_is_closed (s) ||
3105 !(s->flags & VCL_SESSION_F_IS_VEP_SESSION))
3107 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3108 vcl_session_free (wrk, s);
3111 sid = s->session_index;
3112 session_events = s->vep.ev.events;
3114 if (EPOLLRDHUP & session_events)
3116 /* If app can distinguish between RDHUP and HUP,
3117 * we make finer control */
3118 events[*num_ev].events = EPOLLRDHUP;
3119 if (s->flags & VCL_SESSION_F_WR_SHUTDOWN)
3121 events[*num_ev].events |= EPOLLHUP;
3126 events[*num_ev].events = EPOLLHUP;
3128 session_evt_data = s->vep.ev.data.u64;
3131 case SESSION_CTRL_EVT_RESET:
3135 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
3136 s = vcl_session_get (wrk, sid);
3140 sid = e->session_index;
3141 s = vcl_session_get (wrk, sid);
3142 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3144 if (vcl_session_is_closed (s) ||
3145 !(s->flags & VCL_SESSION_F_IS_VEP_SESSION))
3147 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3148 vcl_session_free (wrk, s);
3151 session_events = s->vep.ev.events;
3153 events[*num_ev].events = EPOLLERR | EPOLLHUP;
3154 if ((EPOLLRDHUP & session_events) &&
3155 (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3157 events[*num_ev].events |= EPOLLRDHUP;
3159 if ((EPOLLIN & session_events) && (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3161 events[*num_ev].events |= EPOLLIN;
3163 session_evt_data = s->vep.ev.data.u64;
3165 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
3166 vcl_session_unlisten_reply_handler (wrk, e->data);
3168 case SESSION_CTRL_EVT_MIGRATED:
3169 vcl_session_migrated_handler (wrk, e->data);
3171 case SESSION_CTRL_EVT_CLEANUP:
3172 vcl_session_cleanup_handler (wrk, e->data);
3174 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
3175 vcl_session_req_worker_update_handler (wrk, e->data);
3177 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
3178 vcl_session_worker_update_reply_handler (wrk, e->data);
3180 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
3181 vcl_session_app_add_segment_handler (wrk, e->data);
3183 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
3184 vcl_session_app_del_segment_handler (wrk, e->data);
3186 case SESSION_CTRL_EVT_APP_WRK_RPC:
3187 vcl_worker_rpc_handler (wrk, e->data);
3190 VDBG (0, "unhandled: %u", e->event_type);
3196 events[*num_ev].data.u64 = session_evt_data;
3197 if (EPOLLONESHOT & session_events)
3199 s = vcl_session_get (wrk, sid);
3200 s->vep.ev.events = 0;
3202 else if (!(EPOLLET & session_events))
3204 s = vcl_session_get (wrk, sid);
3205 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
3206 vcl_epoll_lt_add (wrk, s);
3213 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
3214 struct epoll_event *events, u32 maxevents,
3215 double wait_for_time, u32 * num_ev)
3217 svm_msg_q_msg_t *msg;
3221 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
3222 goto handle_dequeued;
3224 if (svm_msg_q_is_empty (mq))
3228 else if (wait_for_time < 0)
3229 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
3232 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3236 ASSERT (maxevents > *num_ev);
3237 vcl_mq_dequeue_batch (wrk, mq, ~0);
3240 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3242 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3243 e = svm_msg_q_msg_data (mq, msg);
3244 if (*num_ev < maxevents)
3245 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3247 vcl_handle_mq_event (wrk, e);
3248 svm_msg_q_free_msg (mq, msg);
3250 vec_reset_length (wrk->mq_msg_vector);
3251 vcl_handle_pending_wrk_updates (wrk);
3256 vppcom_epoll_wait_condvar (vcl_worker_t *wrk, struct epoll_event *events,
3257 int maxevents, u32 n_evts, double timeout_ms)
3264 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3269 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3270 timeout_ms, &n_evts);
3271 if (n_evts || !timeout_ms)
3274 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3280 vppcom_epoll_wait_eventfd (vcl_worker_t *wrk, struct epoll_event *events,
3281 int maxevents, u32 n_evts, double timeout_ms)
3283 int __clib_unused n_read;
3284 vcl_mq_evt_conn_t *mqc;
3289 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
3291 vcl_api_retry_attach (wrk);
3295 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3299 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3304 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3305 vec_len (wrk->mq_events), timeout_ms);
3308 VDBG (0, "epoll_wait error %u", errno);
3312 for (i = 0; i < n_mq_evts; i++)
3314 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
3316 /* api socket was closed */
3317 vcl_api_handle_disconnect (wrk);
3321 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3322 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3323 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3327 if (n_evts || !timeout_ms)
3330 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3336 vcl_epoll_wait_handle_lt (vcl_worker_t *wrk, struct epoll_event *events,
3337 int maxevents, u32 *n_evts)
3339 u32 add_event = 0, next;
3344 ASSERT (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX);
3345 if (*n_evts >= maxevents)
3348 next = wrk->ep_lt_current;
3351 s = vcl_session_get (wrk, next);
3352 next = s->vep.lt_next;
3354 if ((s->vep.ev.events & EPOLLIN) && (rv = vcl_session_read_ready (s)))
3357 events[*n_evts].events |= rv > 0 ? EPOLLIN : EPOLLHUP | EPOLLRDHUP;
3358 evt_data = s->vep.ev.data.u64;
3360 if ((s->vep.ev.events & EPOLLOUT) && (rv = vcl_session_write_ready (s)))
3363 events[*n_evts].events |= rv > 0 ? EPOLLOUT : EPOLLHUP | EPOLLRDHUP;
3364 evt_data = s->vep.ev.data.u64;
3366 if (!add_event && s->session_state > VCL_STATE_READY)
3369 events[*n_evts].events |= EPOLLHUP | EPOLLRDHUP;
3370 evt_data = s->vep.ev.data.u64;
3374 events[*n_evts].data.u64 = evt_data;
3377 if (EPOLLONESHOT & s->vep.ev.events)
3378 s->vep.ev.events = 0;
3379 if (*n_evts == maxevents)
3381 wrk->ep_lt_current = next;
3387 vcl_epoll_lt_del (wrk, s);
3388 if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX)
3392 while (next != wrk->ep_lt_current);
3396 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3397 int maxevents, double wait_for_time)
3399 vcl_worker_t *wrk = vcl_worker_get_current ();
3400 vcl_session_t *vep_session;
3404 if (PREDICT_FALSE (maxevents <= 0))
3406 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3407 return VPPCOM_EINVAL;
3410 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3412 return VPPCOM_EBADFD;
3414 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3416 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3417 return VPPCOM_EINVAL;
3420 if (vec_len (wrk->unhandled_evts_vector))
3422 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3424 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3426 if (n_evts == maxevents)
3428 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3432 vec_reset_length (wrk->unhandled_evts_vector);
3435 if (PREDICT_FALSE (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX))
3436 vcl_epoll_wait_handle_lt (wrk, events, maxevents, &n_evts);
3438 /* Request to only drain unhandled */
3439 if ((int) wait_for_time == -2)
3443 if (vcm->cfg.use_mq_eventfd)
3444 n_evts = vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3447 n_evts = vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3454 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3455 void *buffer, uint32_t * buflen)
3457 vcl_worker_t *wrk = vcl_worker_get_current ();
3458 u32 *flags = buffer;
3459 vppcom_endpt_t *ep = buffer;
3460 transport_endpt_attr_t tea;
3461 vcl_session_t *session;
3464 session = vcl_session_get_w_handle (wrk, session_handle);
3466 return VPPCOM_EBADFD;
3470 case VPPCOM_ATTR_GET_NREAD:
3471 rv = vcl_session_read_ready (session);
3472 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3476 case VPPCOM_ATTR_GET_NWRITE:
3477 rv = vcl_session_write_ready (session);
3478 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3482 case VPPCOM_ATTR_GET_FLAGS:
3483 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3487 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3489 *buflen = sizeof (*flags);
3490 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3491 "is_nonblocking = %u", session_handle, *flags,
3492 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3498 case VPPCOM_ATTR_SET_FLAGS:
3499 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3501 if (*flags & O_NONBLOCK)
3502 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3504 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3506 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3507 " is_nonblocking = %u", session_handle, *flags,
3508 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3514 case VPPCOM_ATTR_GET_PEER_ADDR:
3515 if (PREDICT_TRUE (buffer && buflen &&
3516 (*buflen >= sizeof (*ep)) && ep->ip))
3518 ep->is_ip4 = session->transport.is_ip4;
3519 ep->port = session->transport.rmt_port;
3520 if (session->transport.is_ip4)
3521 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3522 sizeof (ip4_address_t));
3524 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3525 sizeof (ip6_address_t));
3526 *buflen = sizeof (*ep);
3528 "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3529 "addr = %U, port %u",
3530 session_handle, ep->is_ip4, vcl_format_ip46_address,
3531 &session->transport.rmt_ip,
3532 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3533 clib_net_to_host_u16 (ep->port));
3539 case VPPCOM_ATTR_GET_LCL_ADDR:
3540 if (PREDICT_TRUE (buffer && buflen &&
3541 (*buflen >= sizeof (*ep)) && ep->ip))
3543 ep->is_ip4 = session->transport.is_ip4;
3544 ep->port = session->transport.lcl_port;
3545 if (session->transport.is_ip4)
3546 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3547 sizeof (ip4_address_t));
3549 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3550 sizeof (ip6_address_t));
3551 *buflen = sizeof (*ep);
3553 "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3555 session_handle, ep->is_ip4, vcl_format_ip46_address,
3556 &session->transport.lcl_ip,
3557 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3558 clib_net_to_host_u16 (ep->port));
3564 case VPPCOM_ATTR_SET_LCL_ADDR:
3565 if (PREDICT_TRUE (buffer && buflen &&
3566 (*buflen >= sizeof (*ep)) && ep->ip))
3568 session->transport.is_ip4 = ep->is_ip4;
3569 session->transport.lcl_port = ep->port;
3570 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3571 *buflen = sizeof (*ep);
3573 "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3575 session_handle, ep->is_ip4, vcl_format_ip46_address,
3576 &session->transport.lcl_ip,
3577 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3578 clib_net_to_host_u16 (ep->port));
3584 case VPPCOM_ATTR_GET_LIBC_EPFD:
3585 rv = session->libc_epfd;
3586 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3589 case VPPCOM_ATTR_SET_LIBC_EPFD:
3590 if (PREDICT_TRUE (buffer && buflen &&
3591 (*buflen == sizeof (session->libc_epfd))))
3593 session->libc_epfd = *(int *) buffer;
3594 *buflen = sizeof (session->libc_epfd);
3596 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3597 session->libc_epfd, *buflen);
3603 case VPPCOM_ATTR_GET_PROTOCOL:
3604 if (buffer && buflen && (*buflen >= sizeof (int)))
3606 *(int *) buffer = session->session_type;
3607 *buflen = sizeof (int);
3609 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3610 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3616 case VPPCOM_ATTR_GET_LISTEN:
3617 if (buffer && buflen && (*buflen >= sizeof (int)))
3619 *(int *) buffer = vcl_session_has_attr (session,
3620 VCL_SESS_ATTR_LISTEN);
3621 *buflen = sizeof (int);
3623 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3630 case VPPCOM_ATTR_GET_ERROR:
3631 if (buffer && buflen && (*buflen >= sizeof (int)))
3633 *(int *) buffer = 0;
3634 *buflen = sizeof (int);
3636 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3637 *(int *) buffer, *buflen);
3643 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3644 if (buffer && buflen && (*buflen >= sizeof (u32)))
3648 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3650 svm_fifo_size (session->tx_fifo) :
3651 vcm->cfg.tx_fifo_size);
3652 *buflen = sizeof (u32);
3654 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3655 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3662 case VPPCOM_ATTR_SET_DSCP:
3663 if (buffer && buflen && (*buflen >= sizeof (u8)))
3665 session->dscp = *(u8 *) buffer;
3667 VDBG (2, "VPPCOM_ATTR_SET_DSCP: %u (0x%x), buflen %d,",
3668 *(u8 *) buffer, *(u8 *) buffer, *buflen);
3674 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3675 if (buffer && buflen && (*buflen == sizeof (u32)))
3678 session->sndbuf_size = *(u32 *) buffer;
3679 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3680 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3687 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3688 if (buffer && buflen && (*buflen >= sizeof (u32)))
3692 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3694 svm_fifo_size (session->rx_fifo) :
3695 vcm->cfg.rx_fifo_size);
3696 *buflen = sizeof (u32);
3698 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3699 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3705 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3706 if (buffer && buflen && (*buflen == sizeof (u32)))
3709 session->rcvbuf_size = *(u32 *) buffer;
3710 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3711 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3718 case VPPCOM_ATTR_GET_REUSEADDR:
3719 if (buffer && buflen && (*buflen >= sizeof (int)))
3722 *(int *) buffer = vcl_session_has_attr (session,
3723 VCL_SESS_ATTR_REUSEADDR);
3724 *buflen = sizeof (int);
3726 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3727 *(int *) buffer, *buflen);
3733 case VPPCOM_ATTR_SET_REUSEADDR:
3734 if (buffer && buflen && (*buflen == sizeof (int)) &&
3735 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3738 if (*(int *) buffer)
3739 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3741 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3743 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3744 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3751 case VPPCOM_ATTR_GET_REUSEPORT:
3752 if (buffer && buflen && (*buflen >= sizeof (int)))
3755 *(int *) buffer = vcl_session_has_attr (session,
3756 VCL_SESS_ATTR_REUSEPORT);
3757 *buflen = sizeof (int);
3759 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3760 *(int *) buffer, *buflen);
3766 case VPPCOM_ATTR_SET_REUSEPORT:
3767 if (buffer && buflen && (*buflen == sizeof (int)) &&
3768 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3771 if (*(int *) buffer)
3772 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3774 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3776 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3777 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3784 case VPPCOM_ATTR_GET_BROADCAST:
3785 if (buffer && buflen && (*buflen >= sizeof (int)))
3788 *(int *) buffer = vcl_session_has_attr (session,
3789 VCL_SESS_ATTR_BROADCAST);
3790 *buflen = sizeof (int);
3792 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3793 *(int *) buffer, *buflen);
3799 case VPPCOM_ATTR_SET_BROADCAST:
3800 if (buffer && buflen && (*buflen == sizeof (int)))
3803 if (*(int *) buffer)
3804 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3806 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3808 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3809 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3816 case VPPCOM_ATTR_GET_V6ONLY:
3817 if (buffer && buflen && (*buflen >= sizeof (int)))
3820 *(int *) buffer = vcl_session_has_attr (session,
3821 VCL_SESS_ATTR_V6ONLY);
3822 *buflen = sizeof (int);
3824 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3825 *(int *) buffer, *buflen);
3831 case VPPCOM_ATTR_SET_V6ONLY:
3832 if (buffer && buflen && (*buflen == sizeof (int)))
3835 if (*(int *) buffer)
3836 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3838 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3840 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3841 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3848 case VPPCOM_ATTR_GET_KEEPALIVE:
3849 if (buffer && buflen && (*buflen >= sizeof (int)))
3852 *(int *) buffer = vcl_session_has_attr (session,
3853 VCL_SESS_ATTR_KEEPALIVE);
3854 *buflen = sizeof (int);
3856 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3857 *(int *) buffer, *buflen);
3863 case VPPCOM_ATTR_SET_KEEPALIVE:
3864 if (buffer && buflen && (*buflen == sizeof (int)))
3867 if (*(int *) buffer)
3868 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3870 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3872 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3873 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3880 case VPPCOM_ATTR_GET_TCP_NODELAY:
3881 if (buffer && buflen && (*buflen >= sizeof (int)))
3884 *(int *) buffer = vcl_session_has_attr (session,
3885 VCL_SESS_ATTR_TCP_NODELAY);
3886 *buflen = sizeof (int);
3888 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3889 *(int *) buffer, *buflen);
3895 case VPPCOM_ATTR_SET_TCP_NODELAY:
3896 if (buffer && buflen && (*buflen == sizeof (int)))
3899 if (*(int *) buffer)
3900 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3902 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3904 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3905 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3912 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3913 if (buffer && buflen && (*buflen >= sizeof (int)))
3916 *(int *) buffer = vcl_session_has_attr (session,
3917 VCL_SESS_ATTR_TCP_KEEPIDLE);
3918 *buflen = sizeof (int);
3920 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3921 *(int *) buffer, *buflen);
3927 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3928 if (buffer && buflen && (*buflen == sizeof (int)))
3931 if (*(int *) buffer)
3932 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3934 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3936 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3937 vcl_session_has_attr (session,
3938 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3944 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3945 if (buffer && buflen && (*buflen >= sizeof (int)))
3948 *(int *) buffer = vcl_session_has_attr (session,
3949 VCL_SESS_ATTR_TCP_KEEPINTVL);
3950 *buflen = sizeof (int);
3952 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3953 *(int *) buffer, *buflen);
3959 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3960 if (buffer && buflen && (*buflen == sizeof (int)))
3963 if (*(int *) buffer)
3964 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3966 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3968 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3969 vcl_session_has_attr (session,
3970 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3976 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3977 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3983 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
3984 tea.mss = *(u32 *) buffer;
3985 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
3986 rv = VPPCOM_ENOPROTOOPT;
3990 *(u32 *) buffer = tea.mss;
3991 *buflen = sizeof (int);
3994 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
3997 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3998 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4004 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4005 tea.mss = *(u32 *) buffer;
4006 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
4007 rv = VPPCOM_ENOPROTOOPT;
4009 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
4013 case VPPCOM_ATTR_SET_CONNECTED:
4014 session->flags |= VCL_SESSION_F_CONNECTED;
4017 case VPPCOM_ATTR_SET_CKPAIR:
4018 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
4019 !vcl_session_has_crypto (session))
4024 if (!session->ext_config)
4026 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_CRYPTO,
4027 sizeof (transport_endpt_ext_cfg_t));
4029 else if (session->ext_config->type != TRANSPORT_ENDPT_EXT_CFG_CRYPTO)
4035 session->ext_config->crypto.ckpair_index = *(uint32_t *) buffer;
4038 case VPPCOM_ATTR_SET_VRF:
4039 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4044 session->vrf = *(u32 *) buffer;
4047 case VPPCOM_ATTR_GET_VRF:
4048 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4053 *(u32 *) buffer = session->vrf;
4054 *buflen = sizeof (u32);
4057 case VPPCOM_ATTR_GET_DOMAIN:
4058 if (!(buffer && buflen && (*buflen >= sizeof (int))))
4064 if (session->transport.is_ip4)
4065 *(int *) buffer = AF_INET;
4067 *(int *) buffer = AF_INET6;
4068 *buflen = sizeof (int);
4070 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
4074 case VPPCOM_ATTR_SET_ENDPT_EXT_CFG:
4075 if (!(buffer && buflen && (*buflen > 0)))
4080 if (session->ext_config)
4085 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_NONE,
4086 *buflen + sizeof (u32));
4087 clib_memcpy (session->ext_config->data, buffer, *buflen);
4088 session->ext_config->len = *buflen;
4090 case VPPCOM_ATTR_SET_IP_PKTINFO:
4091 if (buffer && buflen && (*buflen == sizeof (int)) &&
4092 !vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO))
4094 if (*(int *) buffer)
4095 vcl_session_set_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4097 vcl_session_clear_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4099 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d",
4100 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO),
4107 case VPPCOM_ATTR_GET_IP_PKTINFO:
4108 if (buffer && buflen && (*buflen >= sizeof (int)))
4111 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4112 *buflen = sizeof (int);
4114 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d", *(int *) buffer,
4130 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
4131 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4133 vcl_worker_t *wrk = vcl_worker_get_current ();
4134 vcl_session_t *session;
4138 rv = vppcom_session_read (session_handle, buffer, buflen);
4139 else if (flags & MSG_PEEK)
4140 rv = vppcom_session_peek (session_handle, buffer, buflen);
4143 VDBG (0, "Unsupport flags for recvfrom %d", flags);
4144 return VPPCOM_EAFNOSUPPORT;
4149 session = vcl_session_get_w_handle (wrk, session_handle);
4150 if (session->transport.is_ip4)
4151 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
4152 sizeof (ip4_address_t));
4154 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
4155 sizeof (ip6_address_t));
4156 ep->is_ip4 = session->transport.is_ip4;
4157 ep->port = session->transport.rmt_port;
4164 vcl_handle_ep_app_tlvs (vcl_session_t *s, vppcom_endpt_t *ep)
4166 vppcom_endpt_tlv_t *tlv = ep->app_tlvs;
4170 switch (tlv->data_type)
4172 case VCL_UDP_SEGMENT:
4173 s->gso_size = *(u16 *) tlv->data;
4175 case VCL_IP_PKTINFO:
4176 clib_memcpy_fast (&s->transport.lcl_ip, (ip4_address_t *) tlv->data,
4177 sizeof (ip4_address_t));
4180 VDBG (0, "Ignorning unsupported app tlv %u", tlv->data_type);
4183 tlv = VCL_EP_NEXT_APP_TLV (ep, tlv);
4189 vppcom_session_sendto (uint32_t session_handle, void *buffer,
4190 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4192 vcl_worker_t *wrk = vcl_worker_get_current ();
4195 s = vcl_session_get_w_handle (wrk, session_handle);
4196 if (PREDICT_FALSE (!s))
4197 return VPPCOM_EBADFD;
4201 if (!vcl_session_is_cl (s))
4202 return VPPCOM_EINVAL;
4204 s->transport.is_ip4 = ep->is_ip4;
4205 s->transport.rmt_port = ep->port;
4206 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
4209 vcl_handle_ep_app_tlvs (s, ep);
4211 /* Session not connected/bound in vpp. Create it by 'connecting' it */
4212 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
4214 u32 session_index = s->session_index;
4215 f64 timeout = vcm->cfg.session_timeout;
4218 vcl_send_session_connect (wrk, s);
4219 rv = vppcom_wait_for_session_state_change (session_index,
4224 s = vcl_session_get (wrk, session_index);
4230 // TBD check the flags and do the right thing
4231 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
4234 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
4235 s->is_dgram ? 1 : 0));
4239 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
4241 vcl_worker_t *wrk = vcl_worker_get_current ();
4242 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
4243 u32 i, keep_trying = 1;
4244 svm_msg_q_msg_t msg;
4248 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
4251 return VPPCOM_EFAULT;
4255 vcl_session_t *session;
4257 /* Dequeue all events and drop all unhandled io events */
4258 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
4260 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
4261 vcl_handle_mq_event (wrk, e);
4262 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
4264 vec_reset_length (wrk->unhandled_evts_vector);
4266 for (i = 0; i < n_sids; i++)
4268 session = vcl_session_get (wrk, vp[i].sh);
4271 vp[i].revents = POLLHUP;
4278 if (POLLIN & vp[i].events)
4280 rv = vcl_session_read_ready (session);
4283 vp[i].revents |= POLLIN;
4290 case VPPCOM_ECONNRESET:
4291 vp[i].revents = POLLHUP;
4295 vp[i].revents = POLLERR;
4302 if (POLLOUT & vp[i].events)
4304 rv = vcl_session_write_ready (session);
4307 vp[i].revents |= POLLOUT;
4314 case VPPCOM_ECONNRESET:
4315 vp[i].revents = POLLHUP;
4319 vp[i].revents = POLLERR;
4326 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
4328 vp[i].revents = POLLNVAL;
4332 if (wait_for_time != -1)
4333 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
4335 while ((num_ev == 0) && keep_trying);
4341 vppcom_mq_epoll_fd (void)
4343 vcl_worker_t *wrk = vcl_worker_get_current ();
4344 return wrk->mqs_epfd;
4348 vppcom_session_index (vcl_session_handle_t session_handle)
4350 return session_handle & 0xFFFFFF;
4354 vppcom_session_worker (vcl_session_handle_t session_handle)
4356 return session_handle >> 24;
4360 vppcom_worker_register (void)
4362 if (!vcl_worker_alloc_and_init ())
4363 return VPPCOM_EEXIST;
4365 if (vcl_worker_register_with_vpp ())
4366 return VPPCOM_EEXIST;
4372 vppcom_worker_unregister (void)
4374 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
4375 vcl_set_worker_index (~0);
4379 vppcom_worker_index_set (int index)
4381 vcl_set_worker_index (index);
4385 vppcom_worker_index (void)
4387 return vcl_get_worker_index ();
4391 vppcom_worker_mqs_epfd (void)
4393 vcl_worker_t *wrk = vcl_worker_get_current ();
4394 if (!vcm->cfg.use_mq_eventfd)
4396 return wrk->mqs_epfd;
4400 vppcom_session_is_connectable_listener (uint32_t session_handle)
4402 vcl_session_t *session;
4403 vcl_worker_t *wrk = vcl_worker_get_current ();
4404 session = vcl_session_get_w_handle (wrk, session_handle);
4406 return VPPCOM_EBADFD;
4407 return vcl_session_is_connectable_listener (wrk, session);
4411 vppcom_session_listener (uint32_t session_handle)
4413 vcl_worker_t *wrk = vcl_worker_get_current ();
4414 vcl_session_t *listen_session, *session;
4415 session = vcl_session_get_w_handle (wrk, session_handle);
4417 return VPPCOM_EBADFD;
4418 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
4419 return VPPCOM_EBADFD;
4420 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4421 if (!listen_session)
4422 return VPPCOM_EBADFD;
4423 return vcl_session_handle (listen_session);
4427 vppcom_session_n_accepted (uint32_t session_handle)
4429 vcl_worker_t *wrk = vcl_worker_get_current ();
4430 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4432 return VPPCOM_EBADFD;
4433 return session->n_accepted_sessions;
4437 vppcom_proto_str (vppcom_proto_t proto)
4439 char const *proto_str;
4443 case VPPCOM_PROTO_TCP:
4446 case VPPCOM_PROTO_UDP:
4449 case VPPCOM_PROTO_TLS:
4452 case VPPCOM_PROTO_QUIC:
4455 case VPPCOM_PROTO_DTLS:
4458 case VPPCOM_PROTO_SRTP:
4462 proto_str = "UNKNOWN";
4469 vppcom_retval_str (int retval)
4480 st = "VPPCOM_EAGAIN";
4484 st = "VPPCOM_EFAULT";
4488 st = "VPPCOM_ENOMEM";
4492 st = "VPPCOM_EINVAL";
4496 st = "VPPCOM_EBADFD";
4499 case VPPCOM_EAFNOSUPPORT:
4500 st = "VPPCOM_EAFNOSUPPORT";
4503 case VPPCOM_ECONNABORTED:
4504 st = "VPPCOM_ECONNABORTED";
4507 case VPPCOM_ECONNRESET:
4508 st = "VPPCOM_ECONNRESET";
4511 case VPPCOM_ENOTCONN:
4512 st = "VPPCOM_ENOTCONN";
4515 case VPPCOM_ECONNREFUSED:
4516 st = "VPPCOM_ECONNREFUSED";
4519 case VPPCOM_ETIMEDOUT:
4520 st = "VPPCOM_ETIMEDOUT";
4523 case VPPCOM_EADDRINUSE:
4524 st = "VPPCOM_EADDRINUSE";
4528 st = "UNKNOWN_STATE";
4536 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4538 if (vcm->cfg.vpp_app_socket_api)
4539 return vcl_sapi_add_cert_key_pair (ckpair);
4541 return vcl_bapi_add_cert_key_pair (ckpair);
4545 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4547 if (vcm->cfg.vpp_app_socket_api)
4548 return vcl_sapi_del_cert_key_pair (ckpair_index);
4550 return vcl_bapi_del_cert_key_pair (ckpair_index);
4554 vppcom_session_get_error (uint32_t session_handle)
4556 vcl_worker_t *wrk = vcl_worker_get_current ();
4557 vcl_session_t *session = 0;
4559 session = vcl_session_get_w_handle (wrk, session_handle);
4561 return VPPCOM_EBADFD;
4563 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
4565 VWRN ("epoll session %u! will not have connect", session->session_index);
4566 return VPPCOM_EBADFD;
4569 if (session->vpp_error == SESSION_E_PORTINUSE)
4570 return VPPCOM_EADDRINUSE;
4571 else if (session->vpp_error == SESSION_E_REFUSED)
4572 return VPPCOM_ECONNREFUSED;
4573 else if (session->vpp_error != SESSION_E_NONE)
4574 return VPPCOM_EFAULT;
4580 vppcom_worker_is_detached (void)
4582 vcl_worker_t *wrk = vcl_worker_get_current ();
4584 if (!vcm->cfg.use_mq_eventfd)
4585 return VPPCOM_ENOTSUP;
4587 return wrk->api_client_handle == ~0;
4591 * fd.io coding-style-patch-verification: ON
4594 * eval: (c-set-style "gnu")