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;
356 session->original_dst_ip4 = mp->original_dst_ip4;
357 session->original_dst_port = mp->original_dst_port;
359 session->transport.rmt_port = mp->rmt.port;
360 session->transport.is_ip4 = mp->rmt.is_ip4;
361 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
362 sizeof (ip46_address_t));
364 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
365 session->transport.lcl_port = mp->lcl.port;
366 session->transport.lcl_ip = mp->lcl.ip;
367 session->session_type = listen_session->session_type;
368 session->is_dgram = vcl_proto_is_dgram (session->session_type);
369 if (session->is_dgram)
370 session->flags |= (listen_session->flags & VCL_SESSION_F_CONNECTED);
371 session->listener_index = listen_session->session_index;
372 listen_session->n_accepted_sessions++;
374 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
376 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
377 session->vpp_handle, 0);
379 return session->session_index;
382 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
383 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
384 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
385 VNET_API_ERROR_INVALID_ARGUMENT);
386 vcl_session_free (wrk, session);
387 return VCL_INVALID_SESSION_INDEX;
391 vcl_session_connected_handler (vcl_worker_t * wrk,
392 session_connected_msg_t * mp)
394 vcl_session_t *session = 0;
397 session_index = mp->context;
398 session = vcl_session_get (wrk, session_index);
399 if (PREDICT_FALSE (!session))
401 VERR ("vpp handle 0x%llx has no session index (%u)!", mp->handle,
403 /* Should not happen but if it does, force vpp session cleanup */
404 vcl_session_t tmp_session = {
405 .vpp_handle = mp->handle,
408 vcl_segment_attach_session (
409 mp->segment_handle, mp->server_rx_fifo, mp->server_tx_fifo,
410 mp->vpp_event_queue_address, mp->mq_index, 0, session);
411 if (tmp_session.vpp_evt_q)
412 vcl_send_session_disconnect (wrk, &tmp_session);
413 return VCL_INVALID_SESSION_INDEX;
418 VDBG (0, "session %u: connect failed! %U", session_index,
419 format_session_error, mp->retval);
420 session->session_state = VCL_STATE_DETACHED;
421 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
422 session->vpp_error = mp->retval;
423 return session_index;
426 session->vpp_handle = mp->handle;
428 /* Add to lookup table. Even if something fails, session cannot be
429 * cleaned up prior to notifying vpp and going through the cleanup
430 * "procedure" see @ref vcl_session_cleanup_handler */
431 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
433 if (vcl_segment_attach_session (
434 mp->segment_handle, mp->server_rx_fifo, mp->server_tx_fifo,
435 mp->vpp_event_queue_address, mp->mq_index, 0, session))
437 VDBG (0, "session %u [0x%llx]: failed to attach fifos",
438 session->session_index, session->vpp_handle);
439 session->session_state = VCL_STATE_UPDATED;
440 vcl_send_session_disconnect (wrk, session);
441 return session_index;
446 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
447 mp->ct_tx_fifo, (uword) ~0, ~0, 1,
450 VDBG (0, "session %u [0x%llx]: failed to attach ct fifos",
451 session->session_index, session->vpp_handle);
452 session->session_state = VCL_STATE_UPDATED;
453 vcl_send_session_disconnect (wrk, session);
454 return session_index;
458 session->transport.is_ip4 = mp->lcl.is_ip4;
459 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
460 sizeof (session->transport.lcl_ip));
461 session->transport.lcl_port = mp->lcl.port;
463 /* Application closed session before connect reply */
464 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
465 && session->session_state == VCL_STATE_CLOSED)
466 vcl_send_session_disconnect (wrk, session);
468 session->session_state = VCL_STATE_READY;
470 VDBG (0, "session %u [0x%llx] connected local: %U:%u remote %U:%u",
471 session->session_index, session->vpp_handle, vcl_format_ip46_address,
472 &session->transport.lcl_ip,
473 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
474 clib_net_to_host_u16 (session->transport.lcl_port),
475 vcl_format_ip46_address, &session->transport.rmt_ip,
476 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
477 clib_net_to_host_u16 (session->transport.rmt_port));
479 return session_index;
483 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
485 vcl_session_msg_t *accepted_msg;
488 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
490 accepted_msg = &session->accept_evts_fifo[i];
491 if (accepted_msg->accepted_msg.handle == handle)
493 accepted_msg->flags |= flags;
501 vcl_session_reset_handler (vcl_worker_t * wrk,
502 session_reset_msg_t * reset_msg)
504 vcl_session_t *session;
507 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
508 session = vcl_session_get (wrk, sid);
511 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
512 return VCL_INVALID_SESSION_INDEX;
515 /* Caught a reset before actually accepting the session */
516 if (session->session_state == VCL_STATE_LISTEN)
519 if (!vcl_flag_accepted_session (session, reset_msg->handle,
520 VCL_ACCEPTED_F_RESET))
521 VDBG (0, "session was not accepted!");
522 return VCL_INVALID_SESSION_INDEX;
525 if (session->session_state != VCL_STATE_CLOSED)
526 session->session_state = VCL_STATE_DISCONNECT;
528 session->flags |= (VCL_SESSION_F_RD_SHUTDOWN | VCL_SESSION_F_WR_SHUTDOWN);
529 VDBG (0, "session %u [0x%llx]: reset", sid, reset_msg->handle);
534 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
536 vcl_session_t *session;
537 u32 sid = mp->context;
539 session = vcl_session_get (wrk, sid);
542 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
543 format_session_error, mp->retval);
546 session->session_state = VCL_STATE_DETACHED;
547 session->vpp_handle = mp->handle;
552 VDBG (0, "session %u [0x%llx]: Invalid session index!", sid,
554 return VCL_INVALID_SESSION_INDEX;
558 session->vpp_handle = mp->handle;
559 session->transport.is_ip4 = mp->lcl_is_ip4;
560 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
561 sizeof (ip46_address_t));
562 session->transport.lcl_port = mp->lcl_port;
563 vcl_session_table_add_listener (wrk, mp->handle, sid);
564 session->session_state = VCL_STATE_LISTEN;
565 session->flags &= ~VCL_SESSION_F_PENDING_LISTEN;
567 if (vcl_session_is_cl (session))
569 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
570 mp->tx_fifo, mp->vpp_evt_q, mp->mq_index,
573 VDBG (0, "session %u [0x%llx]: failed to attach fifos",
574 session->session_index, session->vpp_handle);
575 session->session_state = VCL_STATE_DETACHED;
576 return VCL_INVALID_SESSION_INDEX;
580 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
585 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
587 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
590 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
593 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
596 if (s->session_state != VCL_STATE_DISCONNECT)
598 /* Connected udp listener */
599 if (s->session_type == VPPCOM_PROTO_UDP
600 && s->session_state == VCL_STATE_CLOSED)
603 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
608 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
609 s->session_index, mp->handle, format_session_error, mp->retval);
611 if (mp->context != wrk->wrk_index)
612 VDBG (0, "wrong context");
614 vcl_session_table_del_vpp_handle (wrk, mp->handle);
615 vcl_session_free (wrk, s);
619 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
621 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
625 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
628 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
632 /* Only validate if a value is provided */
633 if (mp->segment_handle != SESSION_INVALID_HANDLE)
635 fs_index = vcl_segment_table_lookup (mp->segment_handle);
636 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
638 VDBG (0, "segment %lx for session %u is not mounted!",
639 mp->segment_handle, s->session_index);
640 s->session_state = VCL_STATE_DETACHED;
645 s->vpp_handle = mp->new_handle;
647 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
648 mp->vpp_thread_index, &s->vpp_evt_q);
650 vcl_session_table_del_vpp_handle (wrk, mp->handle);
651 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
653 /* Generate new tx event if we have outstanding data */
654 if (svm_fifo_has_event (s->tx_fifo))
655 app_send_io_evt_to_vpp (s->vpp_evt_q,
656 s->tx_fifo->shr->master_session_index,
657 SESSION_IO_EVT_TX, SVM_Q_WAIT);
659 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
660 mp->vpp_thread_index, mp->new_handle);
663 static vcl_session_t *
664 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
666 vcl_session_msg_t *vcl_msg;
667 vcl_session_t *session;
669 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
670 if (PREDICT_FALSE (session != 0))
671 VWRN ("session overlap handle %lu state %u!", msg->handle,
672 session->session_state);
674 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
677 VERR ("couldn't find listen session: listener handle %llx",
678 msg->listener_handle);
682 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
684 vcl_msg->accepted_msg = *msg;
685 /* Session handle points to listener until fully accepted by app */
686 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
691 static vcl_session_t *
692 vcl_session_disconnected_handler (vcl_worker_t * wrk,
693 session_disconnected_msg_t * msg)
695 vcl_session_t *session;
697 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
700 VWRN ("request to disconnect unknown handle 0x%llx", msg->handle);
704 /* Late disconnect notification on a session that has been closed */
705 if (session->session_state == VCL_STATE_CLOSED)
708 /* Caught a disconnect before actually accepting the session */
709 if (session->session_state == VCL_STATE_LISTEN)
711 if (!vcl_flag_accepted_session (session, msg->handle,
712 VCL_ACCEPTED_F_CLOSED))
713 VDBG (0, "session was not accepted!");
717 /* If not already reset change state */
718 if (session->session_state != VCL_STATE_DISCONNECT)
719 session->session_state = VCL_STATE_VPP_CLOSING;
725 vppcom_session_shutdown (uint32_t session_handle, int how)
727 vcl_worker_t *wrk = vcl_worker_get_current ();
728 vcl_session_t *session;
729 vcl_session_state_t state;
732 session = vcl_session_get_w_handle (wrk, session_handle);
733 if (PREDICT_FALSE (!session))
734 return VPPCOM_EBADFD;
736 vpp_handle = session->vpp_handle;
737 state = session->session_state;
739 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
740 vpp_handle, state, vcl_session_state_str (state));
742 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
744 VDBG (0, "ERROR: Cannot shutdown a listen socket!");
745 return VPPCOM_EBADFD;
748 if (how == SHUT_RD || how == SHUT_RDWR)
750 session->flags |= VCL_SESSION_F_RD_SHUTDOWN;
754 session->flags |= VCL_SESSION_F_WR_SHUTDOWN;
756 if (PREDICT_TRUE (state == VCL_STATE_READY))
758 VDBG (1, "session %u [0x%llx]: sending shutdown...",
759 session->session_index, vpp_handle);
761 vcl_send_session_shutdown (wrk, session);
768 vppcom_session_disconnect (u32 session_handle)
770 vcl_worker_t *wrk = vcl_worker_get_current ();
771 vcl_session_t *session, *listen_session;
772 vcl_session_state_t state;
775 session = vcl_session_get_w_handle (wrk, session_handle);
777 return VPPCOM_EBADFD;
779 vpp_handle = session->vpp_handle;
780 state = session->session_state;
782 VDBG (1, "session %u [0x%llx]: disconnecting state (%s)",
783 session->session_index, vpp_handle, vcl_session_state_str (state));
785 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
787 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
788 return VPPCOM_EBADFD;
791 if (state == VCL_STATE_VPP_CLOSING)
793 vcl_send_session_disconnected_reply (wrk, session, 0);
794 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
795 session->session_index, vpp_handle);
799 /* Session doesn't have an event queue yet. Probably a non-blocking
800 * connect. Wait for the reply */
801 if (PREDICT_FALSE (!session->vpp_evt_q))
804 VDBG (1, "session %u [0x%llx]: sending disconnect",
805 session->session_index, vpp_handle);
806 vcl_send_session_disconnect (wrk, session);
809 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
811 listen_session = vcl_session_get (wrk, session->listener_index);
813 listen_session->n_accepted_sessions--;
820 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
822 session_cleanup_msg_t *msg;
823 vcl_session_t *session;
825 msg = (session_cleanup_msg_t *) data;
826 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
829 VWRN ("disconnect confirmed for unknown handle 0x%llx", msg->handle);
833 if (msg->type == SESSION_CLEANUP_TRANSPORT)
835 /* Transport was cleaned up before we confirmed close. Probably the
836 * app is still waiting for some data that cannot be delivered.
837 * Confirm close to make sure everything is cleaned up.
838 * Move to undetermined state to ensure that the session is not
839 * removed before both vpp and the app cleanup.
840 * - If the app closes first, the session is moved to CLOSED state
841 * and the session cleanup notification from vpp removes the
843 * - If vpp cleans up the session first, the session is moved to
844 * DETACHED state lower and subsequently the close from the app
847 if (session->session_state == VCL_STATE_VPP_CLOSING)
849 vppcom_session_disconnect (vcl_session_handle (session));
850 session->session_state = VCL_STATE_UPDATED;
852 else if (session->session_state == VCL_STATE_DISCONNECT)
854 vcl_send_session_reset_reply (wrk, session, 0);
855 session->session_state = VCL_STATE_UPDATED;
860 /* VPP will reuse the handle so clean it up now */
861 vcl_session_table_del_vpp_handle (wrk, msg->handle);
863 /* App did not close the connection yet so don't free it. */
864 if (session->session_state != VCL_STATE_CLOSED)
866 VDBG (0, "session %u: app did not close", session->session_index);
867 session->session_state = VCL_STATE_DETACHED;
868 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
872 /* Session probably tracked with epoll, disconnect not yet handled and
873 * 1) both transport and session cleanup completed 2) app closed. Wait
874 * until message is drained to free the session.
875 * See @ref vcl_handle_mq_event */
876 if (session->flags & VCL_SESSION_F_PENDING_DISCONNECT)
878 session->flags |= VCL_SESSION_F_PENDING_FREE;
882 vcl_session_free (wrk, session);
886 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
888 session_req_worker_update_msg_t *msg;
891 msg = (session_req_worker_update_msg_t *) data;
892 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
896 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
900 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
902 session_worker_update_reply_msg_t *msg;
905 msg = (session_worker_update_reply_msg_t *) data;
906 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
909 VDBG (0, "unknown handle 0x%llx", msg->handle);
915 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
916 msg->tx_fifo, (uword) ~0, ~0, 0, s))
918 VDBG (0, "failed to attach fifos for %u", s->session_index);
922 s->session_state = VCL_STATE_UPDATED;
924 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
925 s->vpp_handle, wrk->wrk_index);
929 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
932 if (vcm->cfg.vpp_app_socket_api)
933 return vcl_sapi_recv_fds (wrk, fds, n_fds);
935 return vcl_bapi_recv_fds (wrk, fds, n_fds);
939 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
941 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
942 session_app_add_segment_msg_t *msg;
946 msg = (session_app_add_segment_msg_t *) data;
950 vcl_api_recv_fd (wrk, &fd, 1);
951 seg_type = SSVM_SEGMENT_MEMFD;
954 segment_handle = msg->segment_handle;
955 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
957 clib_warning ("invalid segment handle");
961 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
964 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
968 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
973 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
975 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
976 vcl_segment_detach (msg->segment_handle);
977 VDBG (1, "Unmapped segment: %lx", msg->segment_handle);
981 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
983 if (!vcm->wrk_rpc_fn)
986 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
990 vcl_session_transport_attr_reply_handler (vcl_worker_t *wrk, void *data)
992 session_transport_attr_reply_msg_t *mp;
994 if (!wrk->session_attr_op)
997 mp = (session_transport_attr_reply_msg_t *) data;
999 wrk->session_attr_op_rv = mp->retval;
1000 wrk->session_attr_op = 0;
1001 wrk->session_attr_rv = mp->attr;
1005 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
1007 session_disconnected_msg_t *disconnected_msg;
1008 session_connected_msg_t *connected_msg;
1009 session_reset_msg_t *reset_msg;
1010 session_event_t *ecpy;
1014 switch (e->event_type)
1016 case SESSION_IO_EVT_RX:
1017 case SESSION_IO_EVT_TX:
1018 s = vcl_session_get (wrk, e->session_index);
1019 if (!s || !vcl_session_is_open (s))
1021 vec_add1 (wrk->unhandled_evts_vector, *e);
1023 case SESSION_CTRL_EVT_BOUND:
1024 /* We can only wait for only one listen so not postponed */
1025 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1027 case SESSION_CTRL_EVT_ACCEPTED:
1028 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1029 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1031 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1033 ecpy->postponed = 1;
1034 ecpy->session_index = s->session_index;
1037 case SESSION_CTRL_EVT_CONNECTED:
1038 connected_msg = (session_connected_msg_t *) e->data;
1039 sid = vcl_session_connected_handler (wrk, connected_msg);
1040 if (!(s = vcl_session_get (wrk, sid)))
1042 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1044 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1046 ecpy->postponed = 1;
1047 ecpy->session_index = s->session_index;
1050 case SESSION_CTRL_EVT_DISCONNECTED:
1051 disconnected_msg = (session_disconnected_msg_t *) e->data;
1052 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1054 if (s->session_state == VCL_STATE_CLOSED)
1056 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1058 s->session_state = VCL_STATE_VPP_CLOSING;
1059 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1060 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1062 ecpy->postponed = 1;
1063 ecpy->session_index = s->session_index;
1066 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1068 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1071 case SESSION_CTRL_EVT_RESET:
1072 reset_msg = (session_reset_msg_t *) e->data;
1073 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1075 if (s->session_state == VCL_STATE_CLOSED)
1077 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1079 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1080 s->session_state = VCL_STATE_DISCONNECT;
1081 s->flags |= (VCL_SESSION_F_RD_SHUTDOWN | VCL_SESSION_F_WR_SHUTDOWN);
1082 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1084 ecpy->postponed = 1;
1085 ecpy->session_index = s->session_index;
1088 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1090 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1091 vcl_session_unlisten_reply_handler (wrk, e->data);
1093 case SESSION_CTRL_EVT_MIGRATED:
1094 vcl_session_migrated_handler (wrk, e->data);
1096 case SESSION_CTRL_EVT_CLEANUP:
1097 vcl_session_cleanup_handler (wrk, e->data);
1099 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1100 vcl_session_req_worker_update_handler (wrk, e->data);
1102 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1103 vcl_session_worker_update_reply_handler (wrk, e->data);
1105 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1106 vcl_session_app_add_segment_handler (wrk, e->data);
1108 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1109 vcl_session_app_del_segment_handler (wrk, e->data);
1111 case SESSION_CTRL_EVT_APP_WRK_RPC:
1112 vcl_worker_rpc_handler (wrk, e->data);
1114 case SESSION_CTRL_EVT_TRANSPORT_ATTR_REPLY:
1115 vcl_session_transport_attr_reply_handler (wrk, e->data);
1118 clib_warning ("unhandled %u", e->event_type);
1124 vppcom_wait_for_session_state_change (u32 session_index,
1125 vcl_session_state_t state,
1128 vcl_worker_t *wrk = vcl_worker_get_current ();
1129 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1130 vcl_session_t *volatile session;
1131 svm_msg_q_msg_t msg;
1136 session = vcl_session_get (wrk, session_index);
1137 if (PREDICT_FALSE (!session))
1139 return VPPCOM_EBADFD;
1141 if (session->session_state == state)
1145 if (session->session_state == VCL_STATE_DETACHED)
1147 return VPPCOM_ECONNREFUSED;
1150 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1155 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1156 vcl_handle_mq_event (wrk, e);
1157 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1159 while (clib_time_now (&wrk->clib_time) < timeout);
1161 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1162 vcl_session_state_str (state));
1163 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1165 return VPPCOM_ETIMEDOUT;
1169 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1171 vcl_session_state_t state;
1175 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1178 vec_foreach (sip, wrk->pending_session_wrk_updates)
1180 s = vcl_session_get (wrk, *sip);
1181 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1182 state = s->session_state;
1183 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1185 s->session_state = state;
1187 vec_reset_length (wrk->pending_session_wrk_updates);
1191 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1193 svm_msg_q_msg_t *msg;
1198 mq = wrk->app_event_queue;
1199 vcl_mq_dequeue_batch (wrk, mq, ~0);
1201 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1203 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1204 e = svm_msg_q_msg_data (mq, msg);
1205 vcl_handle_mq_event (wrk, e);
1206 svm_msg_q_free_msg (mq, msg);
1208 vec_reset_length (wrk->mq_msg_vector);
1209 vcl_handle_pending_wrk_updates (wrk);
1213 vcl_flush_mq_events (void)
1215 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1219 vppcom_session_unbind (u32 session_handle)
1221 vcl_worker_t *wrk = vcl_worker_get_current ();
1222 session_accepted_msg_t *accepted_msg;
1223 vcl_session_t *session = 0;
1224 vcl_session_msg_t *evt;
1226 session = vcl_session_get_w_handle (wrk, session_handle);
1228 return VPPCOM_EBADFD;
1230 /* Flush pending accept events, if any */
1231 while (clib_fifo_elts (session->accept_evts_fifo))
1233 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1234 accepted_msg = &evt->accepted_msg;
1235 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1236 vcl_send_session_accepted_reply (session->vpp_evt_q,
1237 accepted_msg->context,
1238 accepted_msg->handle, -1);
1240 clib_fifo_free (session->accept_evts_fifo);
1242 vcl_send_session_unlisten (wrk, session);
1244 VDBG (0, "session %u [0x%llx]: sending unbind!", session->session_index,
1245 session->vpp_handle);
1246 vcl_evt (VCL_EVT_UNBIND, session);
1248 session->vpp_handle = ~0;
1249 session->session_state = VCL_STATE_DISCONNECT;
1257 * Notify vpp of the disconnect and mark the worker as free. If we're the
1258 * last worker, do a full cleanup otherwise, since we're probably a forked
1259 * child, avoid syscalls as much as possible. We might've lost privileges.
1262 vppcom_app_exit (void)
1264 if (!pool_elts (vcm->workers))
1266 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1267 vcl_set_worker_index (~0);
1268 vcl_elog_stop (vcm);
1272 vcl_api_attach (void)
1274 if (vcm->cfg.vpp_app_socket_api)
1275 return vcl_sapi_attach ();
1277 return vcl_bapi_attach ();
1281 vcl_is_first_reattach_to_execute ()
1283 if (vcm->reattach_count == 0)
1290 vcl_set_reattach_counter ()
1292 ++vcm->reattach_count;
1294 if (vcm->reattach_count == vec_len (vcm->workers))
1295 vcm->reattach_count = 0;
1299 * Reattach vcl to vpp after it has previously been disconnected.
1301 * The logic should be:
1302 * - first worker to hit `vcl_api_retry_attach` should attach to vpp,
1303 * to reproduce the `vcl_api_attach` in `vppcom_app_create`.
1304 * - the rest of the workers should `reproduce vcl_worker_register_with_vpp`
1305 * from `vppcom_worker_register` since they were already allocated.
1309 vcl_api_retry_attach (vcl_worker_t *wrk)
1313 clib_spinlock_lock (&vcm->workers_lock);
1314 if (vcl_is_first_reattach_to_execute ())
1316 if (vcl_api_attach ())
1318 clib_spinlock_unlock (&vcm->workers_lock);
1321 vcl_set_reattach_counter ();
1322 clib_spinlock_unlock (&vcm->workers_lock);
1326 vcl_set_reattach_counter ();
1327 clib_spinlock_unlock (&vcm->workers_lock);
1328 vcl_worker_register_with_vpp ();
1331 /* Treat listeners as configuration that needs to be re-added to vpp */
1332 pool_foreach (s, wrk->sessions)
1334 if (s->flags & VCL_SESSION_F_IS_VEP)
1336 if (s->session_state == VCL_STATE_LISTEN_NO_MQ)
1337 vppcom_session_listen (vcl_session_handle (s), 10);
1339 VDBG (0, "internal error: unexpected state %d", s->session_state);
1344 vcl_api_handle_disconnect (vcl_worker_t *wrk)
1346 wrk->api_client_handle = ~0;
1347 vcl_worker_detach_sessions (wrk);
1351 vcl_api_detach (vcl_worker_t * wrk)
1353 if (wrk->api_client_handle == ~0)
1356 vcl_send_app_detach (wrk);
1358 if (vcm->cfg.vpp_app_socket_api)
1359 return vcl_sapi_detach (wrk);
1361 return vcl_bapi_disconnect_from_vpp ();
1365 * VPPCOM Public API functions
1368 vppcom_app_create (const char *app_name)
1370 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1375 VDBG (1, "already initialized");
1376 return VPPCOM_EEXIST;
1380 vppcom_cfg (&vcm->cfg);
1381 vcl_cfg = &vcm->cfg;
1383 vcm->main_cpu = pthread_self ();
1384 vcm->main_pid = getpid ();
1385 vcm->app_name = format (0, "%s", app_name);
1386 fifo_segment_main_init (&vcm->segment_main, (uword) ~0,
1387 20 /* timeout in secs */);
1388 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1389 clib_spinlock_init (&vcm->workers_lock);
1390 clib_rwlock_init (&vcm->segment_table_lock);
1391 atexit (vppcom_app_exit);
1392 vcl_elog_init (vcm);
1394 /* Allocate default worker */
1395 vcl_worker_alloc_and_init ();
1397 if ((rv = vcl_api_attach ()))
1399 vppcom_app_destroy ();
1403 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1404 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1410 vppcom_app_destroy (void)
1412 vcl_worker_t *wrk, *current_wrk;
1415 if (!pool_elts (vcm->workers))
1418 vcl_evt (VCL_EVT_DETACH, vcm);
1420 current_wrk = vcl_worker_get_current ();
1423 pool_foreach (wrk, vcm->workers) {
1424 if (current_wrk != wrk)
1425 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1429 vcl_api_detach (current_wrk);
1430 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1431 vcl_set_worker_index (~0);
1433 vcl_elog_stop (vcm);
1436 * Free the heap and fix vcm
1438 heap = clib_mem_get_heap ();
1439 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1441 vcm = &_vppcom_main;
1446 vppcom_session_create (u8 proto, u8 is_nonblocking)
1448 vcl_worker_t *wrk = vcl_worker_get_current ();
1449 vcl_session_t *session;
1451 session = vcl_session_alloc (wrk);
1453 session->session_type = proto;
1454 session->session_state = VCL_STATE_CLOSED;
1455 session->vpp_handle = ~0;
1456 session->is_dgram = vcl_proto_is_dgram (proto);
1457 session->vpp_error = SESSION_E_NONE;
1460 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1462 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1463 is_nonblocking, session_index);
1465 VDBG (0, "created session %u", session->session_index);
1467 return vcl_session_handle (session);
1471 vcl_epoll_lt_add (vcl_worker_t *wrk, vcl_session_t *s)
1473 vcl_session_t *cur, *prev;
1475 ASSERT (s->vep.lt_next == VCL_INVALID_SESSION_INDEX);
1477 if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX)
1479 wrk->ep_lt_current = s->session_index;
1480 s->vep.lt_next = s->session_index;
1481 s->vep.lt_prev = s->session_index;
1485 cur = vcl_session_get (wrk, wrk->ep_lt_current);
1486 prev = vcl_session_get (wrk, cur->vep.lt_prev);
1488 prev->vep.lt_next = s->session_index;
1489 s->vep.lt_prev = prev->session_index;
1491 s->vep.lt_next = cur->session_index;
1492 cur->vep.lt_prev = s->session_index;
1496 vcl_epoll_lt_del (vcl_worker_t *wrk, vcl_session_t *s)
1498 vcl_session_t *prev, *next;
1500 ASSERT (s->vep.lt_next != VCL_INVALID_SESSION_INDEX);
1502 if (s->vep.lt_next == s->session_index)
1504 wrk->ep_lt_current = VCL_INVALID_SESSION_INDEX;
1505 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1506 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1510 prev = vcl_session_get (wrk, s->vep.lt_prev);
1511 next = vcl_session_get (wrk, s->vep.lt_next);
1513 prev->vep.lt_next = next->session_index;
1514 next->vep.lt_prev = prev->session_index;
1516 if (s->session_index == wrk->ep_lt_current)
1517 wrk->ep_lt_current = s->vep.lt_next;
1519 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1520 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1524 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1525 vcl_session_handle_t sh, u8 do_disconnect)
1529 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1531 if (s->flags & VCL_SESSION_F_IS_VEP)
1533 u32 next_sh = s->vep.next_sh;
1534 while (next_sh != ~0)
1536 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1537 if (PREDICT_FALSE (rv < 0))
1538 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1539 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1540 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1541 next_sh = s->vep.next_sh;
1546 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1548 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1550 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1551 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1552 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1557 VDBG (1, "session %u [0x%llx] disconnect skipped",
1558 s->session_index, s->vpp_handle);
1562 if (s->session_state == VCL_STATE_LISTEN)
1564 rv = vppcom_session_unbind (sh);
1565 if (PREDICT_FALSE (rv < 0))
1566 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1567 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1568 vppcom_retval_str (rv));
1571 else if (vcl_session_is_ready (s)
1572 || (vcl_session_is_connectable_listener (wrk, s)))
1574 rv = vppcom_session_disconnect (sh);
1575 if (PREDICT_FALSE (rv < 0))
1576 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1577 " rv %d (%s)", s->session_index, s->vpp_handle,
1578 rv, vppcom_retval_str (rv));
1580 else if (s->session_state == VCL_STATE_DISCONNECT)
1582 vcl_send_session_reset_reply (wrk, s, 0);
1584 else if (s->session_state == VCL_STATE_DETACHED)
1586 VDBG (0, "vpp freed session %d before close", s->session_index);
1588 if (!(s->flags & VCL_SESSION_F_PENDING_DISCONNECT))
1591 /* Disconnect/reset messages pending but vpp transport and session
1592 * cleanups already done. Free only after messages drained. */
1593 s->flags |= VCL_SESSION_F_PENDING_FREE;
1596 s->session_state = VCL_STATE_CLOSED;
1598 /* Session is removed only after vpp confirms the disconnect */
1602 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1604 vcl_session_free (wrk, s);
1605 vcl_evt (VCL_EVT_CLOSE, s, rv);
1611 vppcom_session_close (uint32_t session_handle)
1613 vcl_worker_t *wrk = vcl_worker_get_current ();
1614 vcl_session_t *session;
1616 session = vcl_session_get_w_handle (wrk, session_handle);
1618 return VPPCOM_EBADFD;
1619 return vcl_session_cleanup (wrk, session, session_handle,
1620 1 /* do_disconnect */ );
1624 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1626 vcl_worker_t *wrk = vcl_worker_get_current ();
1627 vcl_session_t *session = 0;
1630 return VPPCOM_EINVAL;
1632 session = vcl_session_get_w_handle (wrk, session_handle);
1634 return VPPCOM_EBADFD;
1636 if (session->flags & VCL_SESSION_F_IS_VEP)
1638 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1639 session->session_index);
1640 return VPPCOM_EBADFD;
1643 session->transport.is_ip4 = ep->is_ip4;
1645 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1646 sizeof (ip4_address_t));
1648 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1649 sizeof (ip6_address_t));
1650 session->transport.lcl_port = ep->port;
1653 "session %u handle %u: binding to local %s address %U port %u, "
1655 session->session_index, session_handle,
1656 session->transport.is_ip4 ? "IPv4" : "IPv6", vcl_format_ip46_address,
1657 &session->transport.lcl_ip,
1658 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1659 clib_net_to_host_u16 (session->transport.lcl_port),
1660 vppcom_proto_str (session->session_type));
1661 vcl_evt (VCL_EVT_BIND, session);
1663 if (session->session_type == VPPCOM_PROTO_UDP)
1664 vppcom_session_listen (session_handle, 10);
1670 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1672 vcl_worker_t *wrk = vcl_worker_get_current ();
1673 vcl_session_t *listen_session = 0;
1674 u64 listen_vpp_handle;
1677 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1678 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1679 return VPPCOM_EBADFD;
1681 listen_vpp_handle = listen_session->vpp_handle;
1682 if (listen_session->session_state == VCL_STATE_LISTEN)
1684 VDBG (0, "session %u [0x%llx]: already in listen state!",
1685 listen_sh, listen_vpp_handle);
1689 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1692 * Send listen request to vpp and wait for reply
1694 vcl_send_session_listen (wrk, listen_session);
1695 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1697 vcm->cfg.session_timeout);
1699 if (PREDICT_FALSE (rv))
1701 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1702 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1703 listen_sh, listen_session->vpp_handle, rv,
1704 vppcom_retval_str (rv));
1712 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1714 if (!strcmp (proto_str, "TCP"))
1715 *proto = VPPCOM_PROTO_TCP;
1716 else if (!strcmp (proto_str, "tcp"))
1717 *proto = VPPCOM_PROTO_TCP;
1718 else if (!strcmp (proto_str, "UDP"))
1719 *proto = VPPCOM_PROTO_UDP;
1720 else if (!strcmp (proto_str, "udp"))
1721 *proto = VPPCOM_PROTO_UDP;
1722 else if (!strcmp (proto_str, "TLS"))
1723 *proto = VPPCOM_PROTO_TLS;
1724 else if (!strcmp (proto_str, "tls"))
1725 *proto = VPPCOM_PROTO_TLS;
1726 else if (!strcmp (proto_str, "QUIC"))
1727 *proto = VPPCOM_PROTO_QUIC;
1728 else if (!strcmp (proto_str, "quic"))
1729 *proto = VPPCOM_PROTO_QUIC;
1730 else if (!strcmp (proto_str, "DTLS"))
1731 *proto = VPPCOM_PROTO_DTLS;
1732 else if (!strcmp (proto_str, "dtls"))
1733 *proto = VPPCOM_PROTO_DTLS;
1734 else if (!strcmp (proto_str, "SRTP"))
1735 *proto = VPPCOM_PROTO_SRTP;
1736 else if (!strcmp (proto_str, "srtp"))
1737 *proto = VPPCOM_PROTO_SRTP;
1744 vppcom_session_accept (uint32_t ls_handle, vppcom_endpt_t *ep, uint32_t flags)
1746 u32 client_session_index = ~0, ls_index, accept_flags = 0;
1747 vcl_worker_t *wrk = vcl_worker_get_current ();
1748 session_accepted_msg_t accepted_msg;
1749 vcl_session_t *ls, *client_session = 0;
1750 vcl_session_msg_t *evt;
1755 ls = vcl_session_get_w_handle (wrk, ls_handle);
1757 return VPPCOM_EBADFD;
1759 if ((ls->session_state != VCL_STATE_LISTEN) &&
1760 (ls->session_state != VCL_STATE_LISTEN_NO_MQ) &&
1761 (!vcl_session_is_connectable_listener (wrk, ls)))
1763 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state (%s)",
1764 ls->vpp_handle, vcl_session_state_str (ls->session_state));
1765 return VPPCOM_EBADFD;
1768 ls_index = ls->session_index;
1770 if (clib_fifo_elts (ls->accept_evts_fifo))
1772 clib_fifo_sub2 (ls->accept_evts_fifo, evt);
1773 accept_flags = evt->flags;
1774 accepted_msg = evt->accepted_msg;
1778 is_nonblocking = vcl_session_has_attr (ls, VCL_SESS_ATTR_NONBLOCK);
1781 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1782 return VPPCOM_EAGAIN;
1784 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1785 vcl_worker_flush_mq_events (wrk);
1791 client_session_index =
1792 vcl_session_accepted_handler (wrk, &accepted_msg, ls_index);
1793 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1794 return VPPCOM_ECONNABORTED;
1796 ls = vcl_session_get (wrk, ls_index);
1797 client_session = vcl_session_get (wrk, client_session_index);
1799 if (flags & O_NONBLOCK)
1800 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1803 "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1804 " flags %d, is_nonblocking %u",
1805 ls->session_index, ls->vpp_handle, client_session_index,
1806 client_session->vpp_handle, flags,
1807 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1811 ep->is_ip4 = client_session->transport.is_ip4;
1812 ep->port = client_session->transport.rmt_port;
1813 if (client_session->transport.is_ip4)
1814 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1815 sizeof (ip4_address_t));
1817 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1818 sizeof (ip6_address_t));
1822 "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1824 ls_handle, ls->vpp_handle, client_session_index,
1825 client_session->vpp_handle, vcl_format_ip46_address,
1826 &client_session->transport.rmt_ip,
1827 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1828 clib_net_to_host_u16 (client_session->transport.rmt_port),
1829 vcl_format_ip46_address, &client_session->transport.lcl_ip,
1830 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1831 clib_net_to_host_u16 (client_session->transport.lcl_port));
1832 vcl_evt (VCL_EVT_ACCEPT, client_session, ls, client_session_index);
1835 * Session might have been closed already
1839 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1840 client_session->session_state = VCL_STATE_VPP_CLOSING;
1841 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1842 client_session->session_state = VCL_STATE_DISCONNECT;
1844 return vcl_session_handle (client_session);
1848 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1850 vcl_worker_t *wrk = vcl_worker_get_current ();
1851 vcl_session_t *session = 0;
1855 session = vcl_session_get_w_handle (wrk, session_handle);
1857 return VPPCOM_EBADFD;
1858 session_index = session->session_index;
1860 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1862 VWRN ("cannot connect epoll session %u!", session->session_index);
1863 return VPPCOM_EBADFD;
1866 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1869 "session %u [0x%llx]: already connected to %U:%d proto %s,"
1871 session->session_index, session->vpp_handle,
1872 vcl_format_ip46_address, &session->transport.rmt_ip,
1873 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1874 clib_net_to_host_u16 (session->transport.rmt_port),
1875 vppcom_proto_str (session->session_type),
1876 vcl_session_state_str (session->session_state));
1880 /* Attempt to connect a connectionless listener */
1881 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1883 if (session->session_type != VPPCOM_PROTO_UDP)
1884 return VPPCOM_EINVAL;
1885 vcl_send_session_unlisten (wrk, session);
1886 session->session_state = VCL_STATE_CLOSED;
1889 session->transport.is_ip4 = server_ep->is_ip4;
1890 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1891 session->transport.rmt_port = server_ep->port;
1892 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1893 session->flags |= VCL_SESSION_F_CONNECTED;
1895 VDBG (0, "session %u: connecting to peer %U:%d proto %s",
1896 session->session_index, vcl_format_ip46_address,
1897 &session->transport.rmt_ip,
1898 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1899 clib_net_to_host_u16 (session->transport.rmt_port),
1900 vppcom_proto_str (session->session_type));
1902 vcl_send_session_connect (wrk, session);
1904 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1906 /* State set to STATE_UPDATED to ensure the session is not assumed
1907 * to be ready and to also allow the app to close it prior to vpp's
1908 * connected reply. */
1909 session->session_state = VCL_STATE_UPDATED;
1910 return VPPCOM_EINPROGRESS;
1914 * Wait for reply from vpp if blocking
1916 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1917 vcm->cfg.session_timeout);
1919 session = vcl_session_get (wrk, session_index);
1920 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1921 session->vpp_handle, rv ? "failed" : "succeeded");
1927 vppcom_session_stream_connect (uint32_t session_handle,
1928 uint32_t parent_session_handle)
1930 vcl_worker_t *wrk = vcl_worker_get_current ();
1931 vcl_session_t *session, *parent_session;
1932 u32 session_index, parent_session_index;
1935 session = vcl_session_get_w_handle (wrk, session_handle);
1937 return VPPCOM_EBADFD;
1938 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1939 if (!parent_session)
1940 return VPPCOM_EBADFD;
1942 session_index = session->session_index;
1943 parent_session_index = parent_session->session_index;
1944 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1946 VDBG (0, "ERROR: cannot connect epoll session %u!",
1947 session->session_index);
1948 return VPPCOM_EBADFD;
1951 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1954 "session handle %u [0x%llx]: session already "
1955 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1956 session_handle, session->vpp_handle, parent_session_handle,
1957 parent_session->vpp_handle,
1958 vppcom_proto_str (session->session_type), session->session_state,
1959 vcl_session_state_str (session->session_state));
1963 /* Connect to quic session specifics */
1964 session->transport.is_ip4 = parent_session->transport.is_ip4;
1965 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1966 session->transport.rmt_port = 0;
1967 session->parent_handle = parent_session->vpp_handle;
1969 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1970 session_handle, parent_session_handle, parent_session->vpp_handle);
1973 * Send connect request and wait for reply from vpp
1975 vcl_send_session_connect (wrk, session);
1976 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1977 vcm->cfg.session_timeout);
1979 session->listener_index = parent_session_index;
1980 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1982 parent_session->n_accepted_sessions++;
1984 session = vcl_session_get (wrk, session_index);
1985 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1986 session->vpp_handle, rv ? "failed" : "succeeded");
1992 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1995 vcl_worker_t *wrk = vcl_worker_get_current ();
1996 int rv, n_read = 0, is_nonblocking;
1997 vcl_session_t *s = 0;
1998 svm_fifo_t *rx_fifo;
2003 if (PREDICT_FALSE (!buf))
2004 return VPPCOM_EFAULT;
2006 s = vcl_session_get_w_handle (wrk, session_handle);
2007 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2008 return VPPCOM_EBADFD;
2010 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2012 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
2013 s->session_index, s->vpp_handle, s->session_state,
2014 vcl_session_state_str (s->session_state));
2015 return vcl_session_closed_error (s);
2018 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
2020 /* Vpp would ack the incoming data and enqueue it for reading.
2021 * So even if SHUT_RD is set, we can still read() the data if
2022 * the session is ready.
2024 if (!vcl_session_read_ready (s))
2030 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2031 is_ct = vcl_session_is_ct (s);
2032 mq = wrk->app_event_queue;
2033 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2034 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2036 if (svm_fifo_is_empty_cons (rx_fifo))
2040 if (vcl_session_is_closing (s))
2041 return vcl_session_closing_error (s);
2043 svm_fifo_unset_event (s->rx_fifo);
2044 svm_fifo_unset_event (rx_fifo);
2045 return VPPCOM_EWOULDBLOCK;
2047 while (svm_fifo_is_empty_cons (rx_fifo))
2049 if (vcl_session_is_closing (s))
2050 return vcl_session_closing_error (s);
2053 svm_fifo_unset_event (s->rx_fifo);
2054 svm_fifo_unset_event (rx_fifo);
2056 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2057 vcl_worker_flush_mq_events (wrk);
2064 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
2066 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
2075 if (svm_fifo_is_empty_cons (rx_fifo))
2078 svm_fifo_unset_event (s->rx_fifo);
2079 svm_fifo_unset_event (rx_fifo);
2080 if (!svm_fifo_is_empty_cons (rx_fifo)
2081 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
2083 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2084 e->event_type = SESSION_IO_EVT_RX;
2085 e->session_index = s->session_index;
2088 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
2090 /* More data enqueued while reading. Try to drain it
2091 * or fill the buffer. Avoid doing that for dgrams */
2097 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
2099 svm_fifo_clear_deq_ntf (rx_fifo);
2100 app_send_io_evt_to_vpp (s->vpp_evt_q,
2101 s->rx_fifo->shr->master_session_index,
2102 SESSION_IO_EVT_RX, SVM_Q_WAIT);
2105 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
2106 s->vpp_handle, n_read, rx_fifo);
2112 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
2114 return (vppcom_session_read_internal (session_handle, buf, n, 0));
2118 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
2120 return (vppcom_session_read_internal (session_handle, buf, n, 1));
2124 vppcom_session_read_segments (uint32_t session_handle,
2125 vppcom_data_segment_t * ds, uint32_t n_segments,
2128 vcl_worker_t *wrk = vcl_worker_get_current ();
2129 int n_read = 0, is_nonblocking;
2130 vcl_session_t *s = 0;
2131 svm_fifo_t *rx_fifo;
2135 s = vcl_session_get_w_handle (wrk, session_handle);
2136 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2137 return VPPCOM_EBADFD;
2139 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2140 return vcl_session_closed_error (s);
2142 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2143 is_ct = vcl_session_is_ct (s);
2144 mq = wrk->app_event_queue;
2145 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2146 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2148 if (svm_fifo_is_empty_cons (rx_fifo))
2153 svm_fifo_unset_event (s->rx_fifo);
2154 svm_fifo_unset_event (rx_fifo);
2155 return VPPCOM_EWOULDBLOCK;
2157 while (svm_fifo_is_empty_cons (rx_fifo))
2159 if (vcl_session_is_closing (s))
2160 return vcl_session_closing_error (s);
2163 svm_fifo_unset_event (s->rx_fifo);
2164 svm_fifo_unset_event (rx_fifo);
2166 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2167 vcl_worker_flush_mq_events (wrk);
2171 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2172 (svm_fifo_seg_t *) ds, &n_segments, max_bytes);
2174 return VPPCOM_EAGAIN;
2176 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2179 svm_fifo_unset_event (s->rx_fifo);
2180 svm_fifo_unset_event (rx_fifo);
2181 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2182 && svm_fifo_set_event (rx_fifo)
2183 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2186 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2187 e->event_type = SESSION_IO_EVT_RX;
2188 e->session_index = s->session_index;
2192 s->rx_bytes_pending += n_read;
2197 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2199 vcl_worker_t *wrk = vcl_worker_get_current ();
2203 s = vcl_session_get_w_handle (wrk, session_handle);
2204 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2207 is_ct = vcl_session_is_ct (s);
2208 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2210 ASSERT (s->rx_bytes_pending >= n_bytes);
2211 s->rx_bytes_pending -= n_bytes;
2215 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2217 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2219 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2225 vppcom_session_write_inline (vcl_worker_t *wrk, vcl_session_t *s, void *buf,
2226 size_t n, u8 is_flush, u8 is_dgram)
2228 int n_write, is_nonblocking;
2229 session_evt_type_t et;
2230 svm_fifo_t *tx_fifo;
2234 /* Accept zero length writes but just return */
2235 if (PREDICT_FALSE (!n))
2238 if (PREDICT_FALSE (!buf))
2239 return VPPCOM_EFAULT;
2241 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2243 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2244 " session!", s->session_index, s->vpp_handle);
2245 return VPPCOM_EBADFD;
2248 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2250 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2251 s->session_index, s->vpp_handle, s->session_state,
2252 vcl_session_state_str (s->session_state));
2253 return vcl_session_closed_error (s);;
2256 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_WR_SHUTDOWN))
2258 VDBG (1, "session %u [0x%llx]: is shutdown! state 0x%x (%s)",
2259 s->session_index, s->vpp_handle, s->session_state,
2260 vcl_session_state_str (s->session_state));
2261 return VPPCOM_EPIPE;
2264 is_ct = vcl_session_is_ct (s);
2265 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2266 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2268 mq = wrk->app_event_queue;
2269 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2273 return VPPCOM_EWOULDBLOCK;
2275 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2277 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2278 if (vcl_session_is_closing (s))
2279 return vcl_session_closing_error (s);
2281 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2282 vcl_worker_flush_mq_events (wrk);
2286 et = SESSION_IO_EVT_TX;
2287 if (is_flush && !is_ct)
2288 et = SESSION_IO_EVT_TX_FLUSH;
2292 et = vcl_session_dgram_tx_evt (s, et);
2294 app_send_dgram_raw_gso (tx_fifo, &s->transport, s->vpp_evt_q, buf, n,
2295 s->gso_size, et, 0 /* do_evt */, SVM_Q_WAIT);
2299 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2300 0 /* do_evt */, SVM_Q_WAIT);
2303 if (svm_fifo_set_event (s->tx_fifo))
2304 app_send_io_evt_to_vpp (
2305 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2307 /* The underlying fifo segment can run out of memory */
2308 if (PREDICT_FALSE (n_write < 0))
2309 return VPPCOM_EAGAIN;
2311 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2312 s->vpp_handle, n_write);
2318 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2320 vcl_worker_t *wrk = vcl_worker_get_current ();
2323 s = vcl_session_get_w_handle (wrk, session_handle);
2324 if (PREDICT_FALSE (!s))
2325 return VPPCOM_EBADFD;
2327 return vppcom_session_write_inline (wrk, s, buf, n, 0 /* is_flush */,
2328 s->is_dgram ? 1 : 0);
2332 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2334 vcl_worker_t *wrk = vcl_worker_get_current ();
2337 s = vcl_session_get_w_handle (wrk, session_handle);
2338 if (PREDICT_FALSE (!s))
2339 return VPPCOM_EBADFD;
2341 return vppcom_session_write_inline (wrk, s, buf, n, 1 /* is_flush */,
2342 s->is_dgram ? 1 : 0);
2345 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2346 if (PREDICT_FALSE (!_s->rx_fifo)) \
2348 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2350 if (!vcl_session_is_ct (_s)) \
2352 svm_fifo_unset_event (_s->rx_fifo); \
2353 if (svm_fifo_is_empty (_s->rx_fifo)) \
2356 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2358 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2359 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2365 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2366 unsigned long n_bits, unsigned long *read_map,
2367 unsigned long *write_map,
2368 unsigned long *except_map, u32 * bits_set)
2370 session_disconnected_msg_t *disconnected_msg;
2371 session_connected_msg_t *connected_msg;
2375 switch (e->event_type)
2377 case SESSION_IO_EVT_RX:
2378 sid = e->session_index;
2379 s = vcl_session_get (wrk, sid);
2380 if (!s || !vcl_session_is_open (s))
2382 vcl_fifo_rx_evt_valid_or_break (s);
2383 if (sid < n_bits && read_map)
2385 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2389 case SESSION_IO_EVT_TX:
2390 sid = e->session_index;
2391 s = vcl_session_get (wrk, sid);
2392 if (!s || !vcl_session_is_open (s))
2394 if (sid < n_bits && write_map)
2396 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2400 case SESSION_CTRL_EVT_ACCEPTED:
2402 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2404 s = vcl_session_get (wrk, e->session_index);
2407 sid = s->session_index;
2408 if (sid < n_bits && read_map)
2410 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2414 case SESSION_CTRL_EVT_CONNECTED:
2417 connected_msg = (session_connected_msg_t *) e->data;
2418 sid = vcl_session_connected_handler (wrk, connected_msg);
2421 sid = e->session_index;
2422 if (sid == VCL_INVALID_SESSION_INDEX)
2424 if (!(sid < n_bits && write_map))
2426 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2428 s = vcl_session_get (wrk, sid);
2429 /* We didn't have a fifo when the event was added */
2430 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2432 case SESSION_CTRL_EVT_DISCONNECTED:
2433 disconnected_msg = (session_disconnected_msg_t *) e->data;
2434 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2437 sid = s->session_index;
2438 if (sid < n_bits && except_map)
2440 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2444 case SESSION_CTRL_EVT_RESET:
2445 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2446 if (sid < n_bits && except_map)
2448 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2452 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2453 vcl_session_unlisten_reply_handler (wrk, e->data);
2455 case SESSION_CTRL_EVT_MIGRATED:
2456 vcl_session_migrated_handler (wrk, e->data);
2458 case SESSION_CTRL_EVT_CLEANUP:
2459 vcl_session_cleanup_handler (wrk, e->data);
2461 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2462 vcl_session_worker_update_reply_handler (wrk, e->data);
2464 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2465 vcl_session_req_worker_update_handler (wrk, e->data);
2467 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2468 vcl_session_app_add_segment_handler (wrk, e->data);
2470 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2471 vcl_session_app_del_segment_handler (wrk, e->data);
2473 case SESSION_CTRL_EVT_APP_WRK_RPC:
2474 vcl_worker_rpc_handler (wrk, e->data);
2477 clib_warning ("unhandled: %u", e->event_type);
2483 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2484 unsigned long n_bits, unsigned long *read_map,
2485 unsigned long *write_map, unsigned long *except_map,
2486 double time_to_wait, u32 * bits_set)
2488 svm_msg_q_msg_t *msg;
2492 if (svm_msg_q_is_empty (mq))
2499 else if (time_to_wait < 0)
2500 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2503 if (svm_msg_q_timedwait (mq, time_to_wait))
2507 vcl_mq_dequeue_batch (wrk, mq, ~0);
2509 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2511 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2512 e = svm_msg_q_msg_data (mq, msg);
2513 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2514 except_map, bits_set);
2515 svm_msg_q_free_msg (mq, msg);
2517 vec_reset_length (wrk->mq_msg_vector);
2518 vcl_handle_pending_wrk_updates (wrk);
2523 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2524 vcl_si_set * read_map, vcl_si_set * write_map,
2525 vcl_si_set * except_map, double time_to_wait,
2528 double wait = 0, start = 0;
2532 wait = time_to_wait;
2533 start = clib_time_now (&wrk->clib_time);
2538 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2539 write_map, except_map, wait, bits_set);
2545 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2553 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2554 vcl_si_set * read_map, vcl_si_set * write_map,
2555 vcl_si_set * except_map, double time_to_wait,
2558 vcl_mq_evt_conn_t *mqc;
2559 int __clib_unused n_read;
2563 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
2565 vcl_api_retry_attach (wrk);
2569 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2570 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2571 vec_len (wrk->mq_events), time_to_wait);
2572 for (i = 0; i < n_mq_evts; i++)
2574 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
2576 vcl_api_handle_disconnect (wrk);
2580 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2581 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2582 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2583 except_map, 0, bits_set);
2586 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2590 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2591 vcl_si_set * except_map, double time_to_wait)
2593 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2594 vcl_worker_t *wrk = vcl_worker_get_current ();
2595 vcl_session_t *s = 0;
2598 if (n_bits && read_map)
2600 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2601 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2602 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2603 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2605 if (n_bits && write_map)
2607 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2608 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2609 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2610 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2612 if (n_bits && except_map)
2614 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2615 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2616 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2617 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2626 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2628 if (!(s = vcl_session_get (wrk, sid)))
2630 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2635 if (vcl_session_write_ready (s))
2637 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2642 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
2650 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2652 if (!(s = vcl_session_get (wrk, sid)))
2654 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2659 if (vcl_session_read_ready (s))
2661 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2668 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2670 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2671 read_map, write_map, except_map, &bits_set);
2673 vec_reset_length (wrk->unhandled_evts_vector);
2675 if (vcm->cfg.use_mq_eventfd)
2676 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2677 time_to_wait, &bits_set);
2679 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2680 time_to_wait, &bits_set);
2686 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2688 vppcom_epoll_t *vep;
2689 u32 sh = vep_handle;
2692 if (VPPCOM_DEBUG <= 3)
2695 s = vcl_session_get_w_handle (wrk, vep_handle);
2696 if (PREDICT_FALSE (!s))
2698 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2701 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2703 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2707 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2710 " is_vep_session = %u\n"
2711 " next_sh = 0x%x (%u)\n"
2712 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2713 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2715 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2717 s = vcl_session_get_w_handle (wrk, sh);
2718 if (PREDICT_FALSE (!s))
2720 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2723 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2725 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2727 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2729 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2733 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2734 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2735 sh, s->vep.vep_sh, vep_handle);
2736 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2738 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2740 " next_sh = 0x%x (%u)\n"
2741 " prev_sh = 0x%x (%u)\n"
2742 " vep_sh = 0x%x (%u)\n"
2743 " ev.events = 0x%x\n"
2744 " ev.data.u64 = 0x%llx\n"
2747 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2748 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2749 vep->ev.data.u64, vep->et_mask);
2754 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2758 vppcom_epoll_create (void)
2760 vcl_worker_t *wrk = vcl_worker_get_current ();
2761 vcl_session_t *vep_session;
2763 vep_session = vcl_session_alloc (wrk);
2765 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2766 vep_session->vep.vep_sh = ~0;
2767 vep_session->vep.next_sh = ~0;
2768 vep_session->vep.prev_sh = ~0;
2769 vep_session->vpp_handle = ~0;
2771 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2772 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2774 return vcl_session_handle (vep_session);
2778 vcl_epoll_ctl_add_unhandled_event (vcl_worker_t *wrk, vcl_session_t *s,
2779 u8 is_epollet, session_evt_type_t evt)
2783 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
2784 vcl_epoll_lt_add (wrk, s);
2788 session_event_t e = { 0 };
2789 e.session_index = s->session_index;
2791 if (evt == SESSION_IO_EVT_RX)
2792 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2793 vec_add1 (wrk->unhandled_evts_vector, e);
2797 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2798 struct epoll_event *event)
2800 vcl_worker_t *wrk = vcl_worker_get_current ();
2801 int rv = VPPCOM_OK, add_evt = 0;
2802 vcl_session_t *vep_session;
2805 if (vep_handle == session_handle)
2807 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2808 return VPPCOM_EINVAL;
2811 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2812 if (PREDICT_FALSE (!vep_session))
2814 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2815 return VPPCOM_EBADFD;
2817 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2819 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2820 return VPPCOM_EINVAL;
2823 ASSERT (vep_session->vep.vep_sh == ~0);
2824 ASSERT (vep_session->vep.prev_sh == ~0);
2826 s = vcl_session_get_w_handle (wrk, session_handle);
2827 if (PREDICT_FALSE (!s))
2829 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2830 return VPPCOM_EBADFD;
2832 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2834 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2835 return VPPCOM_EINVAL;
2841 if (PREDICT_FALSE (!event))
2843 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2844 return VPPCOM_EINVAL;
2846 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2848 VDBG (0, "EPOLL_CTL_ADD: %u already epolled!", s->session_index);
2852 if (vep_session->vep.next_sh != ~0)
2854 vcl_session_t *next_session;
2855 next_session = vcl_session_get_w_handle (wrk,
2856 vep_session->vep.next_sh);
2857 if (PREDICT_FALSE (!next_session))
2859 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2860 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2861 return VPPCOM_EBADFD;
2863 ASSERT (next_session->vep.prev_sh == vep_handle);
2864 next_session->vep.prev_sh = session_handle;
2866 s->vep.next_sh = vep_session->vep.next_sh;
2867 s->vep.prev_sh = vep_handle;
2868 s->vep.vep_sh = vep_handle;
2869 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2870 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
2872 s->vep.ev.events |= EPOLLHUP | EPOLLERR;
2873 s->flags &= ~VCL_SESSION_F_IS_VEP;
2874 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2875 vep_session->vep.next_sh = session_handle;
2877 if ((event->events & EPOLLOUT))
2879 int write_ready = vcl_session_write_ready (s);
2881 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2882 if (write_ready > 0)
2884 /* Generate EPOLLOUT if tx fifo not full */
2885 vcl_epoll_ctl_add_unhandled_event (
2886 wrk, s, event->events & EPOLLET, SESSION_IO_EVT_TX);
2891 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
2894 /* Generate EPOLLIN if rx fifo has data */
2895 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2897 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2901 if (!add_evt && vcl_session_is_closing (s))
2903 session_event_t e = { 0 };
2904 if (s->session_state == VCL_STATE_VPP_CLOSING)
2905 e.event_type = SESSION_CTRL_EVT_DISCONNECTED;
2907 e.event_type = SESSION_CTRL_EVT_RESET;
2908 e.session_index = s->session_index;
2910 vec_add1 (wrk->unhandled_evts_vector, e);
2912 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2913 vep_handle, session_handle, event->events, event->data.u64);
2914 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2918 if (PREDICT_FALSE (!event))
2920 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2924 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2926 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2930 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2932 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2933 session_handle, s->vep.vep_sh, vep_handle);
2938 /* Generate EPOLLOUT if session write ready and event was not on */
2939 if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT))
2941 /* Fifo size load acq synchronized with update store rel */
2942 int write_ready = vcl_session_write_ready (s);
2944 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2945 if (write_ready > 0)
2946 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2949 /* Request deq ntf in case dequeue happened while updating flag */
2950 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
2952 else if (!(event->events & EPOLLOUT))
2953 vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2955 /* Generate EPOLLIN if session read ready and event was not on */
2956 if ((event->events & EPOLLIN) && !(s->vep.ev.events & EPOLLIN) &&
2957 (vcl_session_read_ready (s) > 0))
2959 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2962 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2964 s->vep.ev.events |= EPOLLHUP | EPOLLERR;
2966 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2967 vep_handle, session_handle, event->events, event->data.u64);
2971 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2973 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2977 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2979 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2980 session_handle, s->vep.vep_sh, vep_handle);
2985 if (s->vep.prev_sh == vep_handle)
2986 vep_session->vep.next_sh = s->vep.next_sh;
2989 vcl_session_t *prev_session;
2990 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2991 if (PREDICT_FALSE (!prev_session))
2993 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2994 s->vep.prev_sh, session_handle);
2995 return VPPCOM_EBADFD;
2997 ASSERT (prev_session->vep.next_sh == session_handle);
2998 prev_session->vep.next_sh = s->vep.next_sh;
3000 if (s->vep.next_sh != ~0)
3002 vcl_session_t *next_session;
3003 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
3004 if (PREDICT_FALSE (!next_session))
3006 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
3007 s->vep.next_sh, session_handle);
3008 return VPPCOM_EBADFD;
3010 ASSERT (next_session->vep.prev_sh == session_handle);
3011 next_session->vep.prev_sh = s->vep.prev_sh;
3014 if (s->vep.lt_next != VCL_INVALID_SESSION_INDEX)
3015 vcl_epoll_lt_del (wrk, s);
3017 memset (&s->vep, 0, sizeof (s->vep));
3018 s->vep.next_sh = ~0;
3019 s->vep.prev_sh = ~0;
3021 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
3022 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
3024 if (vcl_session_is_open (s))
3025 vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3027 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
3029 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
3033 VDBG (0, "Invalid operation (%d)!", op);
3037 vep_verify_epoll_chain (wrk, vep_handle);
3044 vcl_ep_session_needs_evt (vcl_session_t *s, u32 evt)
3046 /* No event if not epolled / events reset on hup or level-trigger on */
3047 return ((s->vep.ev.events & evt) &&
3048 s->vep.lt_next == VCL_INVALID_SESSION_INDEX);
3052 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
3053 struct epoll_event *events, u32 * num_ev)
3055 session_disconnected_msg_t *disconnected_msg;
3056 session_connected_msg_t *connected_msg;
3057 u32 sid = ~0, session_events;
3058 u64 session_evt_data = ~0;
3062 switch (e->event_type)
3064 case SESSION_IO_EVT_RX:
3065 sid = e->session_index;
3066 s = vcl_session_get (wrk, sid);
3067 if (vcl_session_is_closed (s))
3069 vcl_fifo_rx_evt_valid_or_break (s);
3070 if (!vcl_ep_session_needs_evt (s, EPOLLIN) ||
3071 (s->flags & VCL_SESSION_F_HAS_RX_EVT))
3073 session_events = s->vep.ev.events;
3075 events[*num_ev].events = EPOLLIN;
3076 session_evt_data = s->vep.ev.data.u64;
3077 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
3079 case SESSION_IO_EVT_TX:
3080 sid = e->session_index;
3081 s = vcl_session_get (wrk, sid);
3082 if (!s || !vcl_session_is_open (s))
3084 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ? s->ct_tx_fifo :
3086 if (!vcl_ep_session_needs_evt (s, EPOLLOUT))
3088 session_events = s->vep.ev.events;
3090 events[*num_ev].events = EPOLLOUT;
3091 session_evt_data = s->vep.ev.data.u64;
3093 case SESSION_CTRL_EVT_ACCEPTED:
3095 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
3097 s = vcl_session_get (wrk, e->session_index);
3098 if (!s || !vcl_ep_session_needs_evt (s, EPOLLIN))
3100 sid = s->session_index;
3101 session_events = s->vep.ev.events;
3103 events[*num_ev].events = EPOLLIN;
3104 session_evt_data = s->vep.ev.data.u64;
3106 case SESSION_CTRL_EVT_CONNECTED:
3109 connected_msg = (session_connected_msg_t *) e->data;
3110 sid = vcl_session_connected_handler (wrk, connected_msg);
3113 sid = e->session_index;
3114 s = vcl_session_get (wrk, sid);
3115 if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLOUT))
3117 /* We didn't have a fifo when the event was added */
3118 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3120 session_events = s->vep.ev.events;
3121 /* Generate EPOLLOUT because there's no connected event */
3122 events[*num_ev].events = EPOLLOUT;
3123 session_evt_data = s->vep.ev.data.u64;
3124 if (s->session_state == VCL_STATE_DETACHED)
3126 events[*num_ev].events |= EPOLLHUP;
3127 s->vep.ev.events = 0;
3130 case SESSION_CTRL_EVT_DISCONNECTED:
3133 disconnected_msg = (session_disconnected_msg_t *) e->data;
3134 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
3138 s = vcl_session_get (wrk, e->session_index);
3139 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3141 if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLHUP))
3143 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3144 vcl_session_free (wrk, s);
3147 sid = s->session_index;
3148 session_events = s->vep.ev.events;
3150 if (EPOLLRDHUP & session_events)
3152 /* If app can distinguish between RDHUP and HUP,
3153 * we make finer control */
3154 events[*num_ev].events = EPOLLRDHUP;
3155 if (s->flags & VCL_SESSION_F_WR_SHUTDOWN)
3157 events[*num_ev].events |= EPOLLHUP;
3162 events[*num_ev].events = EPOLLHUP;
3164 session_evt_data = s->vep.ev.data.u64;
3165 s->vep.ev.events = 0;
3167 case SESSION_CTRL_EVT_BOUND:
3168 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
3170 case SESSION_CTRL_EVT_RESET:
3174 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
3175 s = vcl_session_get (wrk, sid);
3179 sid = e->session_index;
3180 s = vcl_session_get (wrk, sid);
3181 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3183 if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLHUP))
3185 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3186 vcl_session_free (wrk, s);
3189 session_events = s->vep.ev.events;
3191 events[*num_ev].events = EPOLLERR | EPOLLHUP;
3192 if ((EPOLLRDHUP & session_events) &&
3193 (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3195 events[*num_ev].events |= EPOLLRDHUP;
3197 if ((EPOLLIN & session_events) && (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3199 events[*num_ev].events |= EPOLLIN;
3201 session_evt_data = s->vep.ev.data.u64;
3202 s->vep.ev.events = 0;
3204 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
3205 vcl_session_unlisten_reply_handler (wrk, e->data);
3207 case SESSION_CTRL_EVT_MIGRATED:
3208 vcl_session_migrated_handler (wrk, e->data);
3210 case SESSION_CTRL_EVT_CLEANUP:
3211 vcl_session_cleanup_handler (wrk, e->data);
3213 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
3214 vcl_session_req_worker_update_handler (wrk, e->data);
3216 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
3217 vcl_session_worker_update_reply_handler (wrk, e->data);
3219 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
3220 vcl_session_app_add_segment_handler (wrk, e->data);
3222 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
3223 vcl_session_app_del_segment_handler (wrk, e->data);
3225 case SESSION_CTRL_EVT_APP_WRK_RPC:
3226 vcl_worker_rpc_handler (wrk, e->data);
3229 VDBG (0, "unhandled: %u", e->event_type);
3235 ASSERT (s->flags & VCL_SESSION_F_IS_VEP_SESSION);
3236 events[*num_ev].data.u64 = session_evt_data;
3237 if (EPOLLONESHOT & session_events)
3239 s = vcl_session_get (wrk, sid);
3240 if (!(events[*num_ev].events & EPOLLHUP))
3241 s->vep.ev.events = EPOLLHUP | EPOLLERR;
3243 else if (!(EPOLLET & session_events))
3245 s = vcl_session_get (wrk, sid);
3246 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
3247 vcl_epoll_lt_add (wrk, s);
3254 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
3255 struct epoll_event *events, u32 maxevents,
3256 double wait_for_time, u32 * num_ev)
3258 svm_msg_q_msg_t *msg;
3262 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
3263 goto handle_dequeued;
3265 if (svm_msg_q_is_empty (mq))
3269 else if (wait_for_time < 0)
3270 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
3273 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3277 ASSERT (maxevents > *num_ev);
3278 vcl_mq_dequeue_batch (wrk, mq, ~0);
3281 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3283 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3284 e = svm_msg_q_msg_data (mq, msg);
3285 if (*num_ev < maxevents)
3286 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3288 vcl_handle_mq_event (wrk, e);
3289 svm_msg_q_free_msg (mq, msg);
3291 vec_reset_length (wrk->mq_msg_vector);
3292 vcl_handle_pending_wrk_updates (wrk);
3297 vppcom_epoll_wait_condvar (vcl_worker_t *wrk, struct epoll_event *events,
3298 int maxevents, u32 n_evts, double timeout_ms)
3305 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3310 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3311 timeout_ms, &n_evts);
3312 if (n_evts || !timeout_ms)
3315 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3321 vppcom_epoll_wait_eventfd (vcl_worker_t *wrk, struct epoll_event *events,
3322 int maxevents, u32 n_evts, double timeout_ms)
3324 int __clib_unused n_read;
3325 vcl_mq_evt_conn_t *mqc;
3330 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
3332 vcl_api_retry_attach (wrk);
3336 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3340 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3345 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3346 vec_len (wrk->mq_events), timeout_ms);
3349 VDBG (0, "epoll_wait error %u", errno);
3353 for (i = 0; i < n_mq_evts; i++)
3355 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
3357 /* api socket was closed */
3358 vcl_api_handle_disconnect (wrk);
3362 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3363 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3364 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3368 if (n_evts || !timeout_ms)
3371 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3377 vcl_epoll_wait_handle_lt (vcl_worker_t *wrk, struct epoll_event *events,
3378 int maxevents, u32 *n_evts)
3380 u32 add_event = 0, evt_flags = 0, next, *to_remove = 0, *si;
3385 ASSERT (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX);
3386 if (*n_evts >= maxevents)
3389 next = wrk->ep_lt_current;
3392 s = vcl_session_get (wrk, next);
3393 next = s->vep.lt_next;
3395 if (s->vep.ev.events == 0)
3397 vec_add1 (to_remove, s->session_index);
3400 if ((s->vep.ev.events & EPOLLIN) && (rv = vcl_session_read_ready (s)))
3403 evt_flags |= rv > 0 ? EPOLLIN : EPOLLHUP | EPOLLRDHUP;
3404 evt_data = s->vep.ev.data.u64;
3406 if ((s->vep.ev.events & EPOLLOUT) && (rv = vcl_session_write_ready (s)))
3409 evt_flags |= rv > 0 ? EPOLLOUT : EPOLLHUP | EPOLLRDHUP;
3410 evt_data = s->vep.ev.data.u64;
3412 if (!add_event && s->session_state > VCL_STATE_READY)
3415 evt_flags |= EPOLLHUP | EPOLLRDHUP;
3416 evt_data = s->vep.ev.data.u64;
3420 events[*n_evts].events = evt_flags;
3421 events[*n_evts].data.u64 = evt_data;
3422 if (EPOLLONESHOT & s->vep.ev.events)
3423 s->vep.ev.events = EPOLLHUP | EPOLLERR;
3424 if (evt_flags & EPOLLHUP)
3425 s->vep.ev.events = 0;
3429 if (*n_evts == maxevents)
3431 wrk->ep_lt_current = next;
3437 vec_add1 (to_remove, s->session_index);
3440 while (next != wrk->ep_lt_current);
3442 vec_foreach (si, to_remove)
3444 s = vcl_session_get (wrk, *si);
3445 vcl_epoll_lt_del (wrk, s);
3447 vec_free (to_remove);
3451 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3452 int maxevents, double wait_for_time)
3454 vcl_worker_t *wrk = vcl_worker_get_current ();
3455 vcl_session_t *vep_session;
3459 if (PREDICT_FALSE (maxevents <= 0))
3461 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3462 return VPPCOM_EINVAL;
3465 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3467 return VPPCOM_EBADFD;
3469 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3471 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3472 return VPPCOM_EINVAL;
3475 if (vec_len (wrk->unhandled_evts_vector))
3477 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3479 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3481 if (n_evts == maxevents)
3483 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3487 vec_reset_length (wrk->unhandled_evts_vector);
3490 if (PREDICT_FALSE (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX))
3491 vcl_epoll_wait_handle_lt (wrk, events, maxevents, &n_evts);
3493 /* Request to only drain unhandled */
3494 if ((int) wait_for_time == -2)
3498 if (vcm->cfg.use_mq_eventfd)
3499 n_evts = vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3502 n_evts = vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3509 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3510 void *buffer, uint32_t * buflen)
3512 vcl_worker_t *wrk = vcl_worker_get_current ();
3513 u32 *flags = buffer;
3514 vppcom_endpt_t *ep = buffer;
3515 transport_endpt_attr_t tea;
3516 vcl_session_t *session;
3519 session = vcl_session_get_w_handle (wrk, session_handle);
3521 return VPPCOM_EBADFD;
3525 case VPPCOM_ATTR_GET_NREAD:
3526 rv = vcl_session_read_ready (session);
3527 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3531 case VPPCOM_ATTR_GET_NWRITE:
3532 rv = vcl_session_write_ready (session);
3533 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3537 case VPPCOM_ATTR_GET_FLAGS:
3538 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3542 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3544 *buflen = sizeof (*flags);
3545 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3546 "is_nonblocking = %u", session_handle, *flags,
3547 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3553 case VPPCOM_ATTR_SET_FLAGS:
3554 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3556 if (*flags & O_NONBLOCK)
3557 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3559 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3561 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3562 " is_nonblocking = %u", session_handle, *flags,
3563 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3569 case VPPCOM_ATTR_GET_PEER_ADDR:
3570 if (PREDICT_TRUE (buffer && buflen &&
3571 (*buflen >= sizeof (*ep)) && ep->ip))
3573 ep->is_ip4 = session->transport.is_ip4;
3574 ep->port = session->transport.rmt_port;
3575 if (session->transport.is_ip4)
3576 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3577 sizeof (ip4_address_t));
3579 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3580 sizeof (ip6_address_t));
3581 *buflen = sizeof (*ep);
3583 "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3584 "addr = %U, port %u",
3585 session_handle, ep->is_ip4, vcl_format_ip46_address,
3586 &session->transport.rmt_ip,
3587 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3588 clib_net_to_host_u16 (ep->port));
3594 case VPPCOM_ATTR_GET_LCL_ADDR:
3595 if (PREDICT_TRUE (buffer && buflen &&
3596 (*buflen >= sizeof (*ep)) && ep->ip))
3598 ep->is_ip4 = session->transport.is_ip4;
3599 ep->port = session->transport.lcl_port;
3600 if (session->transport.is_ip4)
3601 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3602 sizeof (ip4_address_t));
3604 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3605 sizeof (ip6_address_t));
3606 *buflen = sizeof (*ep);
3608 "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3610 session_handle, ep->is_ip4, vcl_format_ip46_address,
3611 &session->transport.lcl_ip,
3612 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3613 clib_net_to_host_u16 (ep->port));
3619 case VPPCOM_ATTR_GET_ORIGINAL_DST:
3620 if (!session->transport.is_ip4)
3622 /* now original dst only support ipv4*/
3623 rv = VPPCOM_EAFNOSUPPORT;
3626 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*ep)) &&
3629 ep->is_ip4 = session->transport.is_ip4;
3630 ep->port = session->original_dst_port;
3631 clib_memcpy_fast (ep->ip, &session->original_dst_ip4,
3632 sizeof (ip4_address_t));
3633 *buflen = sizeof (*ep);
3635 "VPPCOM_ATTR_GET_ORIGINAL_DST: sh %u, is_ip4 = %u, addr = %U"
3637 session_handle, ep->is_ip4, vcl_format_ip4_address,
3638 (ip4_address_t *) (&session->original_dst_ip4),
3639 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3640 clib_net_to_host_u16 (ep->port));
3646 case VPPCOM_ATTR_SET_LCL_ADDR:
3647 if (PREDICT_TRUE (buffer && buflen &&
3648 (*buflen >= sizeof (*ep)) && ep->ip))
3650 session->transport.is_ip4 = ep->is_ip4;
3651 session->transport.lcl_port = ep->port;
3652 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3653 *buflen = sizeof (*ep);
3655 "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3657 session_handle, ep->is_ip4, vcl_format_ip46_address,
3658 &session->transport.lcl_ip,
3659 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3660 clib_net_to_host_u16 (ep->port));
3666 case VPPCOM_ATTR_GET_LIBC_EPFD:
3667 rv = session->libc_epfd;
3668 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3671 case VPPCOM_ATTR_SET_LIBC_EPFD:
3672 if (PREDICT_TRUE (buffer && buflen &&
3673 (*buflen == sizeof (session->libc_epfd))))
3675 session->libc_epfd = *(int *) buffer;
3676 *buflen = sizeof (session->libc_epfd);
3678 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3679 session->libc_epfd, *buflen);
3685 case VPPCOM_ATTR_GET_PROTOCOL:
3686 if (buffer && buflen && (*buflen >= sizeof (int)))
3688 *(int *) buffer = session->session_type;
3689 *buflen = sizeof (int);
3691 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3692 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3698 case VPPCOM_ATTR_GET_LISTEN:
3699 if (buffer && buflen && (*buflen >= sizeof (int)))
3701 *(int *) buffer = vcl_session_has_attr (session,
3702 VCL_SESS_ATTR_LISTEN);
3703 *buflen = sizeof (int);
3705 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3712 case VPPCOM_ATTR_GET_ERROR:
3713 if (buffer && buflen && (*buflen >= sizeof (int)))
3715 *(int *) buffer = 0;
3716 *buflen = sizeof (int);
3718 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3719 *(int *) buffer, *buflen);
3725 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3726 if (buffer && buflen && (*buflen >= sizeof (u32)))
3730 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3732 svm_fifo_size (session->tx_fifo) :
3733 vcm->cfg.tx_fifo_size);
3734 *buflen = sizeof (u32);
3736 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3737 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3744 case VPPCOM_ATTR_SET_DSCP:
3745 if (buffer && buflen && (*buflen >= sizeof (u8)))
3747 session->dscp = *(u8 *) buffer;
3749 VDBG (2, "VPPCOM_ATTR_SET_DSCP: %u (0x%x), buflen %d,",
3750 *(u8 *) buffer, *(u8 *) buffer, *buflen);
3756 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3757 if (buffer && buflen && (*buflen == sizeof (u32)))
3760 session->sndbuf_size = *(u32 *) buffer;
3761 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3762 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3769 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3770 if (buffer && buflen && (*buflen >= sizeof (u32)))
3774 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3776 svm_fifo_size (session->rx_fifo) :
3777 vcm->cfg.rx_fifo_size);
3778 *buflen = sizeof (u32);
3780 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3781 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3787 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3788 if (buffer && buflen && (*buflen == sizeof (u32)))
3791 session->rcvbuf_size = *(u32 *) buffer;
3792 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3793 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3800 case VPPCOM_ATTR_GET_REUSEADDR:
3801 if (buffer && buflen && (*buflen >= sizeof (int)))
3804 *(int *) buffer = vcl_session_has_attr (session,
3805 VCL_SESS_ATTR_REUSEADDR);
3806 *buflen = sizeof (int);
3808 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3809 *(int *) buffer, *buflen);
3815 case VPPCOM_ATTR_SET_REUSEADDR:
3816 if (buffer && buflen && (*buflen == sizeof (int)) &&
3817 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3820 if (*(int *) buffer)
3821 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3823 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3825 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3826 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3833 case VPPCOM_ATTR_GET_REUSEPORT:
3834 if (buffer && buflen && (*buflen >= sizeof (int)))
3837 *(int *) buffer = vcl_session_has_attr (session,
3838 VCL_SESS_ATTR_REUSEPORT);
3839 *buflen = sizeof (int);
3841 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3842 *(int *) buffer, *buflen);
3848 case VPPCOM_ATTR_SET_REUSEPORT:
3849 if (buffer && buflen && (*buflen == sizeof (int)) &&
3850 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3853 if (*(int *) buffer)
3854 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3856 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3858 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3859 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3866 case VPPCOM_ATTR_GET_BROADCAST:
3867 if (buffer && buflen && (*buflen >= sizeof (int)))
3870 *(int *) buffer = vcl_session_has_attr (session,
3871 VCL_SESS_ATTR_BROADCAST);
3872 *buflen = sizeof (int);
3874 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3875 *(int *) buffer, *buflen);
3881 case VPPCOM_ATTR_SET_BROADCAST:
3882 if (buffer && buflen && (*buflen == sizeof (int)))
3885 if (*(int *) buffer)
3886 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3888 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3890 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3891 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3898 case VPPCOM_ATTR_GET_V6ONLY:
3899 if (buffer && buflen && (*buflen >= sizeof (int)))
3902 *(int *) buffer = vcl_session_has_attr (session,
3903 VCL_SESS_ATTR_V6ONLY);
3904 *buflen = sizeof (int);
3906 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3907 *(int *) buffer, *buflen);
3913 case VPPCOM_ATTR_SET_V6ONLY:
3914 if (buffer && buflen && (*buflen == sizeof (int)))
3917 if (*(int *) buffer)
3918 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3920 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3922 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3923 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3930 case VPPCOM_ATTR_GET_KEEPALIVE:
3931 if (buffer && buflen && (*buflen >= sizeof (int)))
3934 *(int *) buffer = vcl_session_has_attr (session,
3935 VCL_SESS_ATTR_KEEPALIVE);
3936 *buflen = sizeof (int);
3938 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3939 *(int *) buffer, *buflen);
3945 case VPPCOM_ATTR_SET_KEEPALIVE:
3946 if (buffer && buflen && (*buflen == sizeof (int)))
3949 if (*(int *) buffer)
3950 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3952 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3954 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3955 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3962 case VPPCOM_ATTR_GET_TCP_NODELAY:
3963 if (buffer && buflen && (*buflen >= sizeof (int)))
3966 *(int *) buffer = vcl_session_has_attr (session,
3967 VCL_SESS_ATTR_TCP_NODELAY);
3968 *buflen = sizeof (int);
3970 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3971 *(int *) buffer, *buflen);
3977 case VPPCOM_ATTR_SET_TCP_NODELAY:
3978 if (buffer && buflen && (*buflen == sizeof (int)))
3981 if (*(int *) buffer)
3982 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3984 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3986 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3987 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3994 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3995 if (buffer && buflen && (*buflen >= sizeof (int)))
3998 *(int *) buffer = vcl_session_has_attr (session,
3999 VCL_SESS_ATTR_TCP_KEEPIDLE);
4000 *buflen = sizeof (int);
4002 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
4003 *(int *) buffer, *buflen);
4009 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
4010 if (buffer && buflen && (*buflen == sizeof (int)))
4013 if (*(int *) buffer)
4014 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
4016 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
4018 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
4019 vcl_session_has_attr (session,
4020 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
4026 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
4027 if (buffer && buflen && (*buflen >= sizeof (int)))
4030 *(int *) buffer = vcl_session_has_attr (session,
4031 VCL_SESS_ATTR_TCP_KEEPINTVL);
4032 *buflen = sizeof (int);
4034 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
4035 *(int *) buffer, *buflen);
4041 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
4042 if (buffer && buflen && (*buflen == sizeof (int)))
4045 if (*(int *) buffer)
4046 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
4048 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
4050 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
4051 vcl_session_has_attr (session,
4052 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
4058 case VPPCOM_ATTR_GET_TCP_USER_MSS:
4059 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4065 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4066 tea.mss = *(u32 *) buffer;
4067 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
4068 rv = VPPCOM_ENOPROTOOPT;
4072 *(u32 *) buffer = tea.mss;
4073 *buflen = sizeof (int);
4076 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
4079 case VPPCOM_ATTR_SET_TCP_USER_MSS:
4080 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4086 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4087 tea.mss = *(u32 *) buffer;
4088 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
4089 rv = VPPCOM_ENOPROTOOPT;
4091 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
4095 case VPPCOM_ATTR_SET_CONNECTED:
4096 session->flags |= VCL_SESSION_F_CONNECTED;
4099 case VPPCOM_ATTR_SET_CKPAIR:
4100 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
4101 !vcl_session_has_crypto (session))
4106 if (!session->ext_config)
4108 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_CRYPTO,
4109 sizeof (transport_endpt_ext_cfg_t));
4111 else if (session->ext_config->type != TRANSPORT_ENDPT_EXT_CFG_CRYPTO)
4117 session->ext_config->crypto.ckpair_index = *(uint32_t *) buffer;
4120 case VPPCOM_ATTR_SET_VRF:
4121 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4126 session->vrf = *(u32 *) buffer;
4129 case VPPCOM_ATTR_GET_VRF:
4130 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4135 *(u32 *) buffer = session->vrf;
4136 *buflen = sizeof (u32);
4139 case VPPCOM_ATTR_GET_DOMAIN:
4140 if (!(buffer && buflen && (*buflen >= sizeof (int))))
4146 if (session->transport.is_ip4)
4147 *(int *) buffer = AF_INET;
4149 *(int *) buffer = AF_INET6;
4150 *buflen = sizeof (int);
4152 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
4156 case VPPCOM_ATTR_SET_ENDPT_EXT_CFG:
4157 if (!(buffer && buflen && (*buflen > 0)))
4162 if (session->ext_config)
4167 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_NONE,
4168 *buflen + sizeof (u32));
4169 clib_memcpy (session->ext_config->data, buffer, *buflen);
4170 session->ext_config->len = *buflen;
4172 case VPPCOM_ATTR_SET_IP_PKTINFO:
4173 if (buffer && buflen && (*buflen == sizeof (int)) &&
4174 !vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO))
4176 if (*(int *) buffer)
4177 vcl_session_set_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4179 vcl_session_clear_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4181 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d",
4182 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO),
4189 case VPPCOM_ATTR_GET_IP_PKTINFO:
4190 if (buffer && buflen && (*buflen >= sizeof (int)))
4193 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4194 *buflen = sizeof (int);
4196 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d", *(int *) buffer,
4212 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
4213 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4215 vcl_worker_t *wrk = vcl_worker_get_current ();
4216 vcl_session_t *session;
4220 rv = vppcom_session_read (session_handle, buffer, buflen);
4221 else if (flags & MSG_PEEK)
4222 rv = vppcom_session_peek (session_handle, buffer, buflen);
4225 VDBG (0, "Unsupport flags for recvfrom %d", flags);
4226 return VPPCOM_EAFNOSUPPORT;
4231 session = vcl_session_get_w_handle (wrk, session_handle);
4232 if (session->transport.is_ip4)
4233 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
4234 sizeof (ip4_address_t));
4236 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
4237 sizeof (ip6_address_t));
4238 ep->is_ip4 = session->transport.is_ip4;
4239 ep->port = session->transport.rmt_port;
4246 vcl_handle_ep_app_tlvs (vcl_session_t *s, vppcom_endpt_t *ep)
4248 vppcom_endpt_tlv_t *tlv = ep->app_tlvs;
4252 switch (tlv->data_type)
4254 case VCL_UDP_SEGMENT:
4255 s->gso_size = *(u16 *) tlv->data;
4257 case VCL_IP_PKTINFO:
4258 clib_memcpy_fast (&s->transport.lcl_ip, (ip4_address_t *) tlv->data,
4259 sizeof (ip4_address_t));
4262 VDBG (0, "Ignorning unsupported app tlv %u", tlv->data_type);
4265 tlv = VCL_EP_NEXT_APP_TLV (ep, tlv);
4271 vppcom_session_sendto (uint32_t session_handle, void *buffer,
4272 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4274 vcl_worker_t *wrk = vcl_worker_get_current ();
4277 s = vcl_session_get_w_handle (wrk, session_handle);
4278 if (PREDICT_FALSE (!s))
4279 return VPPCOM_EBADFD;
4283 if (!vcl_session_is_cl (s))
4284 return VPPCOM_EINVAL;
4286 s->transport.is_ip4 = ep->is_ip4;
4287 s->transport.rmt_port = ep->port;
4288 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
4291 vcl_handle_ep_app_tlvs (s, ep);
4293 /* Session not connected/bound in vpp. Create it by 'connecting' it */
4294 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
4296 u32 session_index = s->session_index;
4297 f64 timeout = vcm->cfg.session_timeout;
4300 vcl_send_session_connect (wrk, s);
4301 rv = vppcom_wait_for_session_state_change (session_index,
4306 s = vcl_session_get (wrk, session_index);
4312 // TBD check the flags and do the right thing
4313 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
4316 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
4317 s->is_dgram ? 1 : 0));
4321 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
4323 vcl_worker_t *wrk = vcl_worker_get_current ();
4324 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
4325 u32 i, keep_trying = 1;
4326 svm_msg_q_msg_t msg;
4330 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
4333 return VPPCOM_EFAULT;
4337 vcl_session_t *session;
4339 /* Dequeue all events and drop all unhandled io events */
4340 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
4342 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
4343 vcl_handle_mq_event (wrk, e);
4344 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
4346 vec_reset_length (wrk->unhandled_evts_vector);
4348 for (i = 0; i < n_sids; i++)
4350 session = vcl_session_get (wrk, vp[i].sh);
4353 vp[i].revents = POLLHUP;
4360 if (POLLIN & vp[i].events)
4362 rv = vcl_session_read_ready (session);
4365 vp[i].revents |= POLLIN;
4372 case VPPCOM_ECONNRESET:
4373 vp[i].revents = POLLHUP;
4377 vp[i].revents = POLLERR;
4384 if (POLLOUT & vp[i].events)
4386 rv = vcl_session_write_ready (session);
4389 vp[i].revents |= POLLOUT;
4396 case VPPCOM_ECONNRESET:
4397 vp[i].revents = POLLHUP;
4401 vp[i].revents = POLLERR;
4408 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
4410 vp[i].revents = POLLNVAL;
4414 if (wait_for_time != -1)
4415 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
4417 while ((num_ev == 0) && keep_trying);
4423 vppcom_mq_epoll_fd (void)
4425 vcl_worker_t *wrk = vcl_worker_get_current ();
4426 return wrk->mqs_epfd;
4430 vppcom_session_index (vcl_session_handle_t session_handle)
4432 return session_handle & 0xFFFFFF;
4436 vppcom_session_worker (vcl_session_handle_t session_handle)
4438 return session_handle >> 24;
4442 vppcom_worker_register (void)
4444 if (!vcl_worker_alloc_and_init ())
4445 return VPPCOM_EEXIST;
4447 if (vcl_worker_register_with_vpp ())
4448 return VPPCOM_EEXIST;
4454 vppcom_worker_unregister (void)
4456 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
4457 vcl_set_worker_index (~0);
4461 vppcom_worker_index_set (int index)
4463 vcl_set_worker_index (index);
4467 vppcom_worker_index (void)
4469 return vcl_get_worker_index ();
4473 vppcom_worker_mqs_epfd (void)
4475 vcl_worker_t *wrk = vcl_worker_get_current ();
4476 if (!vcm->cfg.use_mq_eventfd)
4478 return wrk->mqs_epfd;
4482 vppcom_session_is_connectable_listener (uint32_t session_handle)
4484 vcl_session_t *session;
4485 vcl_worker_t *wrk = vcl_worker_get_current ();
4486 session = vcl_session_get_w_handle (wrk, session_handle);
4488 return VPPCOM_EBADFD;
4489 return vcl_session_is_connectable_listener (wrk, session);
4493 vppcom_session_listener (uint32_t session_handle)
4495 vcl_worker_t *wrk = vcl_worker_get_current ();
4496 vcl_session_t *listen_session, *session;
4497 session = vcl_session_get_w_handle (wrk, session_handle);
4499 return VPPCOM_EBADFD;
4500 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
4501 return VPPCOM_EBADFD;
4502 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4503 if (!listen_session)
4504 return VPPCOM_EBADFD;
4505 return vcl_session_handle (listen_session);
4509 vppcom_session_n_accepted (uint32_t session_handle)
4511 vcl_worker_t *wrk = vcl_worker_get_current ();
4512 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4514 return VPPCOM_EBADFD;
4515 return session->n_accepted_sessions;
4519 vppcom_proto_str (vppcom_proto_t proto)
4521 char const *proto_str;
4525 case VPPCOM_PROTO_TCP:
4528 case VPPCOM_PROTO_UDP:
4531 case VPPCOM_PROTO_TLS:
4534 case VPPCOM_PROTO_QUIC:
4537 case VPPCOM_PROTO_DTLS:
4540 case VPPCOM_PROTO_SRTP:
4544 proto_str = "UNKNOWN";
4551 vppcom_retval_str (int retval)
4562 st = "VPPCOM_EAGAIN";
4566 st = "VPPCOM_EFAULT";
4570 st = "VPPCOM_ENOMEM";
4574 st = "VPPCOM_EINVAL";
4578 st = "VPPCOM_EBADFD";
4581 case VPPCOM_EAFNOSUPPORT:
4582 st = "VPPCOM_EAFNOSUPPORT";
4585 case VPPCOM_ECONNABORTED:
4586 st = "VPPCOM_ECONNABORTED";
4589 case VPPCOM_ECONNRESET:
4590 st = "VPPCOM_ECONNRESET";
4593 case VPPCOM_ENOTCONN:
4594 st = "VPPCOM_ENOTCONN";
4597 case VPPCOM_ECONNREFUSED:
4598 st = "VPPCOM_ECONNREFUSED";
4601 case VPPCOM_ETIMEDOUT:
4602 st = "VPPCOM_ETIMEDOUT";
4605 case VPPCOM_EADDRINUSE:
4606 st = "VPPCOM_EADDRINUSE";
4610 st = "UNKNOWN_STATE";
4618 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4620 if (vcm->cfg.vpp_app_socket_api)
4621 return vcl_sapi_add_cert_key_pair (ckpair);
4623 return vcl_bapi_add_cert_key_pair (ckpair);
4627 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4629 if (vcm->cfg.vpp_app_socket_api)
4630 return vcl_sapi_del_cert_key_pair (ckpair_index);
4632 return vcl_bapi_del_cert_key_pair (ckpair_index);
4636 vppcom_session_get_error (uint32_t session_handle)
4638 vcl_worker_t *wrk = vcl_worker_get_current ();
4639 vcl_session_t *session = 0;
4641 session = vcl_session_get_w_handle (wrk, session_handle);
4643 return VPPCOM_EBADFD;
4645 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
4647 VWRN ("epoll session %u! will not have connect", session->session_index);
4648 return VPPCOM_EBADFD;
4651 if (session->vpp_error == SESSION_E_PORTINUSE)
4652 return VPPCOM_EADDRINUSE;
4653 else if (session->vpp_error == SESSION_E_REFUSED)
4654 return VPPCOM_ECONNREFUSED;
4655 else if (session->vpp_error != SESSION_E_NONE)
4656 return VPPCOM_EFAULT;
4662 vppcom_worker_is_detached (void)
4664 vcl_worker_t *wrk = vcl_worker_get_current ();
4666 if (!vcm->cfg.use_mq_eventfd)
4667 return VPPCOM_ENOTSUP;
4669 return wrk->api_client_handle == ~0;
4673 * fd.io coding-style-patch-verification: ON
4676 * eval: (c-set-style "gnu")