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 ||
517 session->session_state == VCL_STATE_LISTEN_NO_MQ)
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 ||
710 session->session_state == VCL_STATE_LISTEN_NO_MQ)
712 if (!vcl_flag_accepted_session (session, msg->handle,
713 VCL_ACCEPTED_F_CLOSED))
714 VDBG (0, "session was not accepted!");
718 /* If not already reset change state */
719 if (session->session_state != VCL_STATE_DISCONNECT)
720 session->session_state = VCL_STATE_VPP_CLOSING;
726 vppcom_session_shutdown (uint32_t session_handle, int how)
728 vcl_worker_t *wrk = vcl_worker_get_current ();
729 vcl_session_t *session;
730 vcl_session_state_t state;
733 session = vcl_session_get_w_handle (wrk, session_handle);
734 if (PREDICT_FALSE (!session))
735 return VPPCOM_EBADFD;
737 vpp_handle = session->vpp_handle;
738 state = session->session_state;
740 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
741 vpp_handle, state, vcl_session_state_str (state));
743 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
745 VDBG (0, "ERROR: Cannot shutdown a listen socket!");
746 return VPPCOM_EBADFD;
749 if (how == SHUT_RD || how == SHUT_RDWR)
751 session->flags |= VCL_SESSION_F_RD_SHUTDOWN;
755 session->flags |= VCL_SESSION_F_WR_SHUTDOWN;
757 if (PREDICT_TRUE (state == VCL_STATE_READY))
759 VDBG (1, "session %u [0x%llx]: sending shutdown...",
760 session->session_index, vpp_handle);
762 vcl_send_session_shutdown (wrk, session);
769 vppcom_session_disconnect (u32 session_handle)
771 vcl_worker_t *wrk = vcl_worker_get_current ();
772 vcl_session_t *session, *listen_session;
773 vcl_session_state_t state;
776 session = vcl_session_get_w_handle (wrk, session_handle);
778 return VPPCOM_EBADFD;
780 vpp_handle = session->vpp_handle;
781 state = session->session_state;
783 VDBG (1, "session %u [0x%llx]: disconnecting state (%s)",
784 session->session_index, vpp_handle, vcl_session_state_str (state));
786 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
788 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
789 return VPPCOM_EBADFD;
792 if (state == VCL_STATE_VPP_CLOSING)
794 vcl_send_session_disconnected_reply (wrk, session, 0);
795 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
796 session->session_index, vpp_handle);
800 /* Session doesn't have an event queue yet. Probably a non-blocking
801 * connect. Wait for the reply */
802 if (PREDICT_FALSE (!session->vpp_evt_q))
805 VDBG (1, "session %u [0x%llx]: sending disconnect",
806 session->session_index, vpp_handle);
807 vcl_send_session_disconnect (wrk, session);
810 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
812 listen_session = vcl_session_get (wrk, session->listener_index);
814 listen_session->n_accepted_sessions--;
821 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
823 session_cleanup_msg_t *msg;
824 vcl_session_t *session;
826 msg = (session_cleanup_msg_t *) data;
827 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
830 VWRN ("disconnect confirmed for unknown handle 0x%llx", msg->handle);
834 if (msg->type == SESSION_CLEANUP_TRANSPORT)
836 /* Transport was cleaned up before we confirmed close. Probably the
837 * app is still waiting for some data that cannot be delivered.
838 * Confirm close to make sure everything is cleaned up.
839 * Move to undetermined state to ensure that the session is not
840 * removed before both vpp and the app cleanup.
841 * - If the app closes first, the session is moved to CLOSED state
842 * and the session cleanup notification from vpp removes the
844 * - If vpp cleans up the session first, the session is moved to
845 * DETACHED state lower and subsequently the close from the app
848 if (session->session_state == VCL_STATE_VPP_CLOSING)
850 vppcom_session_disconnect (vcl_session_handle (session));
851 session->session_state = VCL_STATE_UPDATED;
853 else if (session->session_state == VCL_STATE_DISCONNECT)
855 vcl_send_session_reset_reply (wrk, session, 0);
856 session->session_state = VCL_STATE_UPDATED;
861 /* VPP will reuse the handle so clean it up now */
862 vcl_session_table_del_vpp_handle (wrk, msg->handle);
864 /* App did not close the connection yet so don't free it. */
865 if (session->session_state != VCL_STATE_CLOSED)
867 VDBG (0, "session %u: app did not close", session->session_index);
868 session->session_state = VCL_STATE_DETACHED;
869 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
873 /* Session probably tracked with epoll, disconnect not yet handled and
874 * 1) both transport and session cleanup completed 2) app closed. Wait
875 * until message is drained to free the session.
876 * See @ref vcl_handle_mq_event */
877 if (session->flags & VCL_SESSION_F_PENDING_DISCONNECT)
879 session->flags |= VCL_SESSION_F_PENDING_FREE;
883 vcl_session_free (wrk, session);
887 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
889 session_req_worker_update_msg_t *msg;
892 msg = (session_req_worker_update_msg_t *) data;
893 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
897 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
901 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
903 session_worker_update_reply_msg_t *msg;
906 msg = (session_worker_update_reply_msg_t *) data;
907 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
910 VDBG (0, "unknown handle 0x%llx", msg->handle);
916 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
917 msg->tx_fifo, (uword) ~0, ~0, 0, s))
919 VDBG (0, "failed to attach fifos for %u", s->session_index);
923 s->session_state = VCL_STATE_UPDATED;
925 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
926 s->vpp_handle, wrk->wrk_index);
930 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
933 if (vcm->cfg.vpp_app_socket_api)
934 return vcl_sapi_recv_fds (wrk, fds, n_fds);
936 return vcl_bapi_recv_fds (wrk, fds, n_fds);
940 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
942 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
943 session_app_add_segment_msg_t *msg;
947 msg = (session_app_add_segment_msg_t *) data;
951 vcl_api_recv_fd (wrk, &fd, 1);
952 seg_type = SSVM_SEGMENT_MEMFD;
955 segment_handle = msg->segment_handle;
956 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
958 clib_warning ("invalid segment handle");
962 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
965 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
969 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
974 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
976 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
977 vcl_segment_detach (msg->segment_handle);
978 VDBG (1, "Unmapped segment: %lx", msg->segment_handle);
982 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
984 if (!vcm->wrk_rpc_fn)
987 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
991 vcl_session_transport_attr_reply_handler (vcl_worker_t *wrk, void *data)
993 session_transport_attr_reply_msg_t *mp;
995 if (!wrk->session_attr_op)
998 mp = (session_transport_attr_reply_msg_t *) data;
1000 wrk->session_attr_op_rv = mp->retval;
1001 wrk->session_attr_op = 0;
1002 wrk->session_attr_rv = mp->attr;
1006 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
1008 session_disconnected_msg_t *disconnected_msg;
1009 session_connected_msg_t *connected_msg;
1010 session_reset_msg_t *reset_msg;
1011 session_event_t *ecpy;
1015 switch (e->event_type)
1017 case SESSION_IO_EVT_RX:
1018 case SESSION_IO_EVT_TX:
1019 s = vcl_session_get (wrk, e->session_index);
1020 if (!s || !vcl_session_is_open (s))
1022 vec_add1 (wrk->unhandled_evts_vector, *e);
1024 case SESSION_CTRL_EVT_BOUND:
1025 /* We can only wait for only one listen so not postponed */
1026 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1028 case SESSION_CTRL_EVT_ACCEPTED:
1029 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1030 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1032 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1034 ecpy->postponed = 1;
1035 ecpy->session_index = s->session_index;
1038 case SESSION_CTRL_EVT_CONNECTED:
1039 connected_msg = (session_connected_msg_t *) e->data;
1040 sid = vcl_session_connected_handler (wrk, connected_msg);
1041 if (!(s = vcl_session_get (wrk, sid)))
1043 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1045 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1047 ecpy->postponed = 1;
1048 ecpy->session_index = s->session_index;
1051 case SESSION_CTRL_EVT_DISCONNECTED:
1052 disconnected_msg = (session_disconnected_msg_t *) e->data;
1053 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1055 if (s->session_state == VCL_STATE_CLOSED)
1057 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1059 s->session_state = VCL_STATE_VPP_CLOSING;
1060 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1061 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1063 ecpy->postponed = 1;
1064 ecpy->session_index = s->session_index;
1067 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1069 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1072 case SESSION_CTRL_EVT_RESET:
1073 reset_msg = (session_reset_msg_t *) e->data;
1074 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1076 if (s->session_state == VCL_STATE_CLOSED)
1078 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1080 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1081 s->session_state = VCL_STATE_DISCONNECT;
1082 s->flags |= (VCL_SESSION_F_RD_SHUTDOWN | VCL_SESSION_F_WR_SHUTDOWN);
1083 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1085 ecpy->postponed = 1;
1086 ecpy->session_index = s->session_index;
1089 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1091 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1092 vcl_session_unlisten_reply_handler (wrk, e->data);
1094 case SESSION_CTRL_EVT_MIGRATED:
1095 vcl_session_migrated_handler (wrk, e->data);
1097 case SESSION_CTRL_EVT_CLEANUP:
1098 vcl_session_cleanup_handler (wrk, e->data);
1100 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1101 vcl_session_req_worker_update_handler (wrk, e->data);
1103 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1104 vcl_session_worker_update_reply_handler (wrk, e->data);
1106 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1107 vcl_session_app_add_segment_handler (wrk, e->data);
1109 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1110 vcl_session_app_del_segment_handler (wrk, e->data);
1112 case SESSION_CTRL_EVT_APP_WRK_RPC:
1113 vcl_worker_rpc_handler (wrk, e->data);
1115 case SESSION_CTRL_EVT_TRANSPORT_ATTR_REPLY:
1116 vcl_session_transport_attr_reply_handler (wrk, e->data);
1119 clib_warning ("unhandled %u", e->event_type);
1125 vppcom_wait_for_session_state_change (u32 session_index,
1126 vcl_session_state_t state,
1129 vcl_worker_t *wrk = vcl_worker_get_current ();
1130 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1131 vcl_session_t *volatile session;
1132 svm_msg_q_msg_t msg;
1137 session = vcl_session_get (wrk, session_index);
1138 if (PREDICT_FALSE (!session))
1140 return VPPCOM_EBADFD;
1142 if (session->session_state == state)
1146 if (session->session_state == VCL_STATE_DETACHED)
1148 return VPPCOM_ECONNREFUSED;
1151 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1156 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1157 vcl_handle_mq_event (wrk, e);
1158 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1160 while (clib_time_now (&wrk->clib_time) < timeout);
1162 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1163 vcl_session_state_str (state));
1164 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1166 return VPPCOM_ETIMEDOUT;
1170 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1172 vcl_session_state_t state;
1176 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1179 vec_foreach (sip, wrk->pending_session_wrk_updates)
1181 s = vcl_session_get (wrk, *sip);
1182 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1183 state = s->session_state;
1184 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1186 s->session_state = state;
1188 vec_reset_length (wrk->pending_session_wrk_updates);
1192 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1194 svm_msg_q_msg_t *msg;
1199 mq = wrk->app_event_queue;
1200 vcl_mq_dequeue_batch (wrk, mq, ~0);
1202 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1204 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1205 e = svm_msg_q_msg_data (mq, msg);
1206 vcl_handle_mq_event (wrk, e);
1207 svm_msg_q_free_msg (mq, msg);
1209 vec_reset_length (wrk->mq_msg_vector);
1210 vcl_handle_pending_wrk_updates (wrk);
1214 vcl_flush_mq_events (void)
1216 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1220 vppcom_session_unbind (u32 session_handle)
1222 vcl_worker_t *wrk = vcl_worker_get_current ();
1223 session_accepted_msg_t *accepted_msg;
1224 vcl_session_t *session = 0;
1225 vcl_session_msg_t *evt;
1227 session = vcl_session_get_w_handle (wrk, session_handle);
1229 return VPPCOM_EBADFD;
1231 /* Flush pending accept events, if any */
1232 while (clib_fifo_elts (session->accept_evts_fifo))
1234 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1235 accepted_msg = &evt->accepted_msg;
1236 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1237 vcl_send_session_accepted_reply (session->vpp_evt_q,
1238 accepted_msg->context,
1239 accepted_msg->handle, -1);
1241 clib_fifo_free (session->accept_evts_fifo);
1243 vcl_send_session_unlisten (wrk, session);
1245 VDBG (0, "session %u [0x%llx]: sending unbind!", session->session_index,
1246 session->vpp_handle);
1247 vcl_evt (VCL_EVT_UNBIND, session);
1249 session->vpp_handle = ~0;
1250 session->session_state = VCL_STATE_DISCONNECT;
1258 * Notify vpp of the disconnect and mark the worker as free. If we're the
1259 * last worker, do a full cleanup otherwise, since we're probably a forked
1260 * child, avoid syscalls as much as possible. We might've lost privileges.
1263 vppcom_app_exit (void)
1265 if (!pool_elts (vcm->workers))
1267 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1268 vcl_set_worker_index (~0);
1269 vcl_elog_stop (vcm);
1273 vcl_api_attach (void)
1275 if (vcm->cfg.vpp_app_socket_api)
1276 return vcl_sapi_attach ();
1278 return vcl_bapi_attach ();
1282 vcl_is_first_reattach_to_execute ()
1284 if (vcm->reattach_count == 0)
1291 vcl_set_reattach_counter ()
1293 ++vcm->reattach_count;
1295 if (vcm->reattach_count == vec_len (vcm->workers))
1296 vcm->reattach_count = 0;
1300 * Reattach vcl to vpp after it has previously been disconnected.
1302 * The logic should be:
1303 * - first worker to hit `vcl_api_retry_attach` should attach to vpp,
1304 * to reproduce the `vcl_api_attach` in `vppcom_app_create`.
1305 * - the rest of the workers should `reproduce vcl_worker_register_with_vpp`
1306 * from `vppcom_worker_register` since they were already allocated.
1310 vcl_api_retry_attach (vcl_worker_t *wrk)
1314 clib_spinlock_lock (&vcm->workers_lock);
1315 if (vcl_is_first_reattach_to_execute ())
1317 if (vcl_api_attach ())
1319 clib_spinlock_unlock (&vcm->workers_lock);
1322 vcl_set_reattach_counter ();
1323 clib_spinlock_unlock (&vcm->workers_lock);
1327 vcl_set_reattach_counter ();
1328 clib_spinlock_unlock (&vcm->workers_lock);
1329 vcl_worker_register_with_vpp ();
1332 /* Treat listeners as configuration that needs to be re-added to vpp */
1333 pool_foreach (s, wrk->sessions)
1335 if (s->flags & VCL_SESSION_F_IS_VEP)
1337 if (s->session_state == VCL_STATE_LISTEN_NO_MQ)
1338 vppcom_session_listen (vcl_session_handle (s), 10);
1340 VDBG (0, "internal error: unexpected state %d", s->session_state);
1345 vcl_api_handle_disconnect (vcl_worker_t *wrk)
1347 wrk->api_client_handle = ~0;
1348 vcl_worker_detach_sessions (wrk);
1352 vcl_api_detach (vcl_worker_t * wrk)
1354 if (wrk->api_client_handle == ~0)
1357 vcl_send_app_detach (wrk);
1359 if (vcm->cfg.vpp_app_socket_api)
1360 return vcl_sapi_detach (wrk);
1362 return vcl_bapi_disconnect_from_vpp ();
1366 * VPPCOM Public API functions
1369 vppcom_app_create (const char *app_name)
1371 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1376 VDBG (1, "already initialized");
1377 return VPPCOM_EEXIST;
1381 vppcom_cfg (&vcm->cfg);
1382 vcl_cfg = &vcm->cfg;
1384 vcm->main_cpu = pthread_self ();
1385 vcm->main_pid = getpid ();
1386 vcm->app_name = format (0, "%s", app_name);
1387 fifo_segment_main_init (&vcm->segment_main, (uword) ~0,
1388 20 /* timeout in secs */);
1389 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1390 clib_spinlock_init (&vcm->workers_lock);
1391 clib_rwlock_init (&vcm->segment_table_lock);
1392 atexit (vppcom_app_exit);
1393 vcl_elog_init (vcm);
1395 /* Allocate default worker */
1396 vcl_worker_alloc_and_init ();
1398 if ((rv = vcl_api_attach ()))
1400 vppcom_app_destroy ();
1404 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1405 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1411 vppcom_app_destroy (void)
1413 vcl_worker_t *wrk, *current_wrk;
1416 if (!pool_elts (vcm->workers))
1419 vcl_evt (VCL_EVT_DETACH, vcm);
1421 current_wrk = vcl_worker_get_current ();
1424 pool_foreach (wrk, vcm->workers) {
1425 if (current_wrk != wrk)
1426 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1430 vcl_api_detach (current_wrk);
1431 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1432 vcl_set_worker_index (~0);
1434 vcl_elog_stop (vcm);
1437 * Free the heap and fix vcm
1439 heap = clib_mem_get_heap ();
1440 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1442 vcm = &_vppcom_main;
1447 vppcom_session_create (u8 proto, u8 is_nonblocking)
1449 vcl_worker_t *wrk = vcl_worker_get_current ();
1450 vcl_session_t *session;
1452 session = vcl_session_alloc (wrk);
1454 session->session_type = proto;
1455 session->session_state = VCL_STATE_CLOSED;
1456 session->vpp_handle = ~0;
1457 session->is_dgram = vcl_proto_is_dgram (proto);
1458 session->vpp_error = SESSION_E_NONE;
1461 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1463 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1464 is_nonblocking, session_index);
1466 VDBG (0, "created session %u", session->session_index);
1468 return vcl_session_handle (session);
1472 vcl_epoll_lt_add (vcl_worker_t *wrk, vcl_session_t *s)
1474 vcl_session_t *cur, *prev;
1476 ASSERT (s->vep.lt_next == VCL_INVALID_SESSION_INDEX);
1478 if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX)
1480 wrk->ep_lt_current = s->session_index;
1481 s->vep.lt_next = s->session_index;
1482 s->vep.lt_prev = s->session_index;
1486 cur = vcl_session_get (wrk, wrk->ep_lt_current);
1487 prev = vcl_session_get (wrk, cur->vep.lt_prev);
1489 prev->vep.lt_next = s->session_index;
1490 s->vep.lt_prev = prev->session_index;
1492 s->vep.lt_next = cur->session_index;
1493 cur->vep.lt_prev = s->session_index;
1497 vcl_epoll_lt_del (vcl_worker_t *wrk, vcl_session_t *s)
1499 vcl_session_t *prev, *next;
1501 ASSERT (s->vep.lt_next != VCL_INVALID_SESSION_INDEX);
1503 if (s->vep.lt_next == s->session_index)
1505 wrk->ep_lt_current = VCL_INVALID_SESSION_INDEX;
1506 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1507 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1511 prev = vcl_session_get (wrk, s->vep.lt_prev);
1512 next = vcl_session_get (wrk, s->vep.lt_next);
1514 prev->vep.lt_next = next->session_index;
1515 next->vep.lt_prev = prev->session_index;
1517 if (s->session_index == wrk->ep_lt_current)
1518 wrk->ep_lt_current = s->vep.lt_next;
1520 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1521 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1525 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1526 vcl_session_handle_t sh, u8 do_disconnect)
1530 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1532 if (s->flags & VCL_SESSION_F_IS_VEP)
1534 u32 next_sh = s->vep.next_sh;
1535 while (next_sh != ~0)
1537 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1538 if (PREDICT_FALSE (rv < 0))
1539 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1540 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1541 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1542 next_sh = s->vep.next_sh;
1547 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1549 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1551 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1552 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1553 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1558 VDBG (1, "session %u [0x%llx] disconnect skipped",
1559 s->session_index, s->vpp_handle);
1563 if (s->session_state == VCL_STATE_LISTEN)
1565 rv = vppcom_session_unbind (sh);
1566 if (PREDICT_FALSE (rv < 0))
1567 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1568 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1569 vppcom_retval_str (rv));
1572 else if (vcl_session_is_ready (s)
1573 || (vcl_session_is_connectable_listener (wrk, s)))
1575 rv = vppcom_session_disconnect (sh);
1576 if (PREDICT_FALSE (rv < 0))
1577 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1578 " rv %d (%s)", s->session_index, s->vpp_handle,
1579 rv, vppcom_retval_str (rv));
1581 else if (s->session_state == VCL_STATE_DISCONNECT)
1583 vcl_send_session_reset_reply (wrk, s, 0);
1585 else if (s->session_state == VCL_STATE_DETACHED)
1587 VDBG (0, "vpp freed session %d before close", s->session_index);
1589 if (!(s->flags & VCL_SESSION_F_PENDING_DISCONNECT))
1592 /* Disconnect/reset messages pending but vpp transport and session
1593 * cleanups already done. Free only after messages drained. */
1594 s->flags |= VCL_SESSION_F_PENDING_FREE;
1597 s->session_state = VCL_STATE_CLOSED;
1599 /* Session is removed only after vpp confirms the disconnect */
1603 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1605 vcl_session_free (wrk, s);
1606 vcl_evt (VCL_EVT_CLOSE, s, rv);
1612 vppcom_session_close (uint32_t session_handle)
1614 vcl_worker_t *wrk = vcl_worker_get_current ();
1615 vcl_session_t *session;
1617 session = vcl_session_get_w_handle (wrk, session_handle);
1619 return VPPCOM_EBADFD;
1620 return vcl_session_cleanup (wrk, session, session_handle,
1621 1 /* do_disconnect */ );
1625 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1627 vcl_worker_t *wrk = vcl_worker_get_current ();
1628 vcl_session_t *session = 0;
1631 return VPPCOM_EINVAL;
1633 session = vcl_session_get_w_handle (wrk, session_handle);
1635 return VPPCOM_EBADFD;
1637 if (session->flags & VCL_SESSION_F_IS_VEP)
1639 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1640 session->session_index);
1641 return VPPCOM_EBADFD;
1644 session->transport.is_ip4 = ep->is_ip4;
1646 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1647 sizeof (ip4_address_t));
1649 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1650 sizeof (ip6_address_t));
1651 session->transport.lcl_port = ep->port;
1654 "session %u handle %u: binding to local %s address %U port %u, "
1656 session->session_index, session_handle,
1657 session->transport.is_ip4 ? "IPv4" : "IPv6", vcl_format_ip46_address,
1658 &session->transport.lcl_ip,
1659 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1660 clib_net_to_host_u16 (session->transport.lcl_port),
1661 vppcom_proto_str (session->session_type));
1662 vcl_evt (VCL_EVT_BIND, session);
1664 if (session->session_type == VPPCOM_PROTO_UDP)
1665 vppcom_session_listen (session_handle, 10);
1671 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1673 vcl_worker_t *wrk = vcl_worker_get_current ();
1674 vcl_session_t *listen_session = 0;
1675 u64 listen_vpp_handle;
1678 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1679 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1680 return VPPCOM_EBADFD;
1682 listen_vpp_handle = listen_session->vpp_handle;
1683 if (listen_session->session_state == VCL_STATE_LISTEN)
1685 VDBG (0, "session %u [0x%llx]: already in listen state!",
1686 listen_sh, listen_vpp_handle);
1690 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1693 * Send listen request to vpp and wait for reply
1695 vcl_send_session_listen (wrk, listen_session);
1696 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1698 vcm->cfg.session_timeout);
1700 if (PREDICT_FALSE (rv))
1702 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1703 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1704 listen_sh, listen_session->vpp_handle, rv,
1705 vppcom_retval_str (rv));
1713 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1715 if (!strcmp (proto_str, "TCP"))
1716 *proto = VPPCOM_PROTO_TCP;
1717 else if (!strcmp (proto_str, "tcp"))
1718 *proto = VPPCOM_PROTO_TCP;
1719 else if (!strcmp (proto_str, "UDP"))
1720 *proto = VPPCOM_PROTO_UDP;
1721 else if (!strcmp (proto_str, "udp"))
1722 *proto = VPPCOM_PROTO_UDP;
1723 else if (!strcmp (proto_str, "TLS"))
1724 *proto = VPPCOM_PROTO_TLS;
1725 else if (!strcmp (proto_str, "tls"))
1726 *proto = VPPCOM_PROTO_TLS;
1727 else if (!strcmp (proto_str, "QUIC"))
1728 *proto = VPPCOM_PROTO_QUIC;
1729 else if (!strcmp (proto_str, "quic"))
1730 *proto = VPPCOM_PROTO_QUIC;
1731 else if (!strcmp (proto_str, "DTLS"))
1732 *proto = VPPCOM_PROTO_DTLS;
1733 else if (!strcmp (proto_str, "dtls"))
1734 *proto = VPPCOM_PROTO_DTLS;
1735 else if (!strcmp (proto_str, "SRTP"))
1736 *proto = VPPCOM_PROTO_SRTP;
1737 else if (!strcmp (proto_str, "srtp"))
1738 *proto = VPPCOM_PROTO_SRTP;
1745 vppcom_session_accept (uint32_t ls_handle, vppcom_endpt_t *ep, uint32_t flags)
1747 u32 client_session_index = ~0, ls_index, accept_flags = 0;
1748 vcl_worker_t *wrk = vcl_worker_get_current ();
1749 session_accepted_msg_t accepted_msg;
1750 vcl_session_t *ls, *client_session = 0;
1751 vcl_session_msg_t *evt;
1756 ls = vcl_session_get_w_handle (wrk, ls_handle);
1758 return VPPCOM_EBADFD;
1760 if ((ls->session_state != VCL_STATE_LISTEN) &&
1761 (ls->session_state != VCL_STATE_LISTEN_NO_MQ) &&
1762 (!vcl_session_is_connectable_listener (wrk, ls)))
1764 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state (%s)",
1765 ls->vpp_handle, vcl_session_state_str (ls->session_state));
1766 return VPPCOM_EBADFD;
1769 ls_index = ls->session_index;
1771 if (clib_fifo_elts (ls->accept_evts_fifo))
1773 clib_fifo_sub2 (ls->accept_evts_fifo, evt);
1774 accept_flags = evt->flags;
1775 accepted_msg = evt->accepted_msg;
1779 is_nonblocking = vcl_session_has_attr (ls, VCL_SESS_ATTR_NONBLOCK);
1782 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1783 return VPPCOM_EAGAIN;
1785 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1786 vcl_worker_flush_mq_events (wrk);
1792 client_session_index =
1793 vcl_session_accepted_handler (wrk, &accepted_msg, ls_index);
1794 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1795 return VPPCOM_ECONNABORTED;
1797 ls = vcl_session_get (wrk, ls_index);
1798 client_session = vcl_session_get (wrk, client_session_index);
1800 if (flags & O_NONBLOCK)
1801 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1804 "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1805 " flags %d, is_nonblocking %u",
1806 ls->session_index, ls->vpp_handle, client_session_index,
1807 client_session->vpp_handle, flags,
1808 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1812 ep->is_ip4 = client_session->transport.is_ip4;
1813 ep->port = client_session->transport.rmt_port;
1814 if (client_session->transport.is_ip4)
1815 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1816 sizeof (ip4_address_t));
1818 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1819 sizeof (ip6_address_t));
1823 "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1825 ls_handle, ls->vpp_handle, client_session_index,
1826 client_session->vpp_handle, vcl_format_ip46_address,
1827 &client_session->transport.rmt_ip,
1828 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1829 clib_net_to_host_u16 (client_session->transport.rmt_port),
1830 vcl_format_ip46_address, &client_session->transport.lcl_ip,
1831 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1832 clib_net_to_host_u16 (client_session->transport.lcl_port));
1833 vcl_evt (VCL_EVT_ACCEPT, client_session, ls, client_session_index);
1836 * Session might have been closed already
1840 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1841 client_session->session_state = VCL_STATE_VPP_CLOSING;
1842 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1843 client_session->session_state = VCL_STATE_DISCONNECT;
1845 return vcl_session_handle (client_session);
1849 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1851 vcl_worker_t *wrk = vcl_worker_get_current ();
1852 vcl_session_t *session = 0;
1856 session = vcl_session_get_w_handle (wrk, session_handle);
1858 return VPPCOM_EBADFD;
1859 session_index = session->session_index;
1861 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1863 VWRN ("cannot connect epoll session %u!", session->session_index);
1864 return VPPCOM_EBADFD;
1867 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1870 "session %u [0x%llx]: already connected to %U:%d proto %s,"
1872 session->session_index, session->vpp_handle,
1873 vcl_format_ip46_address, &session->transport.rmt_ip,
1874 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1875 clib_net_to_host_u16 (session->transport.rmt_port),
1876 vppcom_proto_str (session->session_type),
1877 vcl_session_state_str (session->session_state));
1881 /* Attempt to connect a connectionless listener */
1882 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1884 if (session->session_type != VPPCOM_PROTO_UDP)
1885 return VPPCOM_EINVAL;
1886 vcl_send_session_unlisten (wrk, session);
1887 session->session_state = VCL_STATE_CLOSED;
1890 session->transport.is_ip4 = server_ep->is_ip4;
1891 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1892 session->transport.rmt_port = server_ep->port;
1893 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1894 session->flags |= VCL_SESSION_F_CONNECTED;
1896 VDBG (0, "session %u: connecting to peer %U:%d proto %s",
1897 session->session_index, vcl_format_ip46_address,
1898 &session->transport.rmt_ip,
1899 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1900 clib_net_to_host_u16 (session->transport.rmt_port),
1901 vppcom_proto_str (session->session_type));
1903 vcl_send_session_connect (wrk, session);
1905 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1907 /* State set to STATE_UPDATED to ensure the session is not assumed
1908 * to be ready and to also allow the app to close it prior to vpp's
1909 * connected reply. */
1910 session->session_state = VCL_STATE_UPDATED;
1911 return VPPCOM_EINPROGRESS;
1915 * Wait for reply from vpp if blocking
1917 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1918 vcm->cfg.session_timeout);
1920 session = vcl_session_get (wrk, session_index);
1921 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1922 session->vpp_handle, rv ? "failed" : "succeeded");
1928 vppcom_session_stream_connect (uint32_t session_handle,
1929 uint32_t parent_session_handle)
1931 vcl_worker_t *wrk = vcl_worker_get_current ();
1932 vcl_session_t *session, *parent_session;
1933 u32 session_index, parent_session_index;
1936 session = vcl_session_get_w_handle (wrk, session_handle);
1938 return VPPCOM_EBADFD;
1939 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1940 if (!parent_session)
1941 return VPPCOM_EBADFD;
1943 session_index = session->session_index;
1944 parent_session_index = parent_session->session_index;
1945 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1947 VDBG (0, "ERROR: cannot connect epoll session %u!",
1948 session->session_index);
1949 return VPPCOM_EBADFD;
1952 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1955 "session handle %u [0x%llx]: session already "
1956 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1957 session_handle, session->vpp_handle, parent_session_handle,
1958 parent_session->vpp_handle,
1959 vppcom_proto_str (session->session_type), session->session_state,
1960 vcl_session_state_str (session->session_state));
1964 /* Connect to quic session specifics */
1965 session->transport.is_ip4 = parent_session->transport.is_ip4;
1966 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1967 session->transport.rmt_port = 0;
1968 session->parent_handle = parent_session->vpp_handle;
1970 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1971 session_handle, parent_session_handle, parent_session->vpp_handle);
1974 * Send connect request and wait for reply from vpp
1976 vcl_send_session_connect (wrk, session);
1977 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1978 vcm->cfg.session_timeout);
1980 session->listener_index = parent_session_index;
1981 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1983 parent_session->n_accepted_sessions++;
1985 session = vcl_session_get (wrk, session_index);
1986 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1987 session->vpp_handle, rv ? "failed" : "succeeded");
1993 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1996 vcl_worker_t *wrk = vcl_worker_get_current ();
1997 int rv, n_read = 0, is_nonblocking;
1998 vcl_session_t *s = 0;
1999 svm_fifo_t *rx_fifo;
2004 if (PREDICT_FALSE (!buf))
2005 return VPPCOM_EFAULT;
2007 s = vcl_session_get_w_handle (wrk, session_handle);
2008 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2009 return VPPCOM_EBADFD;
2011 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2013 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
2014 s->session_index, s->vpp_handle, s->session_state,
2015 vcl_session_state_str (s->session_state));
2016 return vcl_session_closed_error (s);
2019 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
2021 /* Vpp would ack the incoming data and enqueue it for reading.
2022 * So even if SHUT_RD is set, we can still read() the data if
2023 * the session is ready.
2025 if (!vcl_session_read_ready (s))
2031 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2032 is_ct = vcl_session_is_ct (s);
2033 mq = wrk->app_event_queue;
2034 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2035 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2037 if (svm_fifo_is_empty_cons (rx_fifo))
2041 if (vcl_session_is_closing (s))
2042 return vcl_session_closing_error (s);
2044 svm_fifo_unset_event (s->rx_fifo);
2045 svm_fifo_unset_event (rx_fifo);
2046 return VPPCOM_EWOULDBLOCK;
2048 while (svm_fifo_is_empty_cons (rx_fifo))
2050 if (vcl_session_is_closing (s))
2051 return vcl_session_closing_error (s);
2054 svm_fifo_unset_event (s->rx_fifo);
2055 svm_fifo_unset_event (rx_fifo);
2057 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2058 vcl_worker_flush_mq_events (wrk);
2065 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
2067 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
2076 if (svm_fifo_is_empty_cons (rx_fifo))
2079 svm_fifo_unset_event (s->rx_fifo);
2080 svm_fifo_unset_event (rx_fifo);
2081 if (!svm_fifo_is_empty_cons (rx_fifo)
2082 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
2084 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2085 e->event_type = SESSION_IO_EVT_RX;
2086 e->session_index = s->session_index;
2089 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
2091 /* More data enqueued while reading. Try to drain it
2092 * or fill the buffer. Avoid doing that for dgrams */
2098 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
2100 svm_fifo_clear_deq_ntf (rx_fifo);
2101 app_send_io_evt_to_vpp (s->vpp_evt_q,
2102 s->rx_fifo->shr->master_session_index,
2103 SESSION_IO_EVT_RX, SVM_Q_WAIT);
2106 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
2107 s->vpp_handle, n_read, rx_fifo);
2113 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
2115 return (vppcom_session_read_internal (session_handle, buf, n, 0));
2119 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
2121 return (vppcom_session_read_internal (session_handle, buf, n, 1));
2125 vppcom_session_read_segments (uint32_t session_handle,
2126 vppcom_data_segment_t * ds, uint32_t n_segments,
2129 vcl_worker_t *wrk = vcl_worker_get_current ();
2130 int n_read = 0, is_nonblocking;
2131 vcl_session_t *s = 0;
2132 svm_fifo_t *rx_fifo;
2136 s = vcl_session_get_w_handle (wrk, session_handle);
2137 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2138 return VPPCOM_EBADFD;
2140 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2141 return vcl_session_closed_error (s);
2143 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2144 is_ct = vcl_session_is_ct (s);
2145 mq = wrk->app_event_queue;
2146 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2147 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2149 if (svm_fifo_is_empty_cons (rx_fifo))
2154 svm_fifo_unset_event (s->rx_fifo);
2155 svm_fifo_unset_event (rx_fifo);
2156 return VPPCOM_EWOULDBLOCK;
2158 while (svm_fifo_is_empty_cons (rx_fifo))
2160 if (vcl_session_is_closing (s))
2161 return vcl_session_closing_error (s);
2164 svm_fifo_unset_event (s->rx_fifo);
2165 svm_fifo_unset_event (rx_fifo);
2167 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2168 vcl_worker_flush_mq_events (wrk);
2172 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2173 (svm_fifo_seg_t *) ds, &n_segments, max_bytes);
2175 return VPPCOM_EAGAIN;
2177 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2180 svm_fifo_unset_event (s->rx_fifo);
2181 svm_fifo_unset_event (rx_fifo);
2182 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2183 && svm_fifo_set_event (rx_fifo)
2184 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2187 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2188 e->event_type = SESSION_IO_EVT_RX;
2189 e->session_index = s->session_index;
2193 s->rx_bytes_pending += n_read;
2198 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2200 vcl_worker_t *wrk = vcl_worker_get_current ();
2204 s = vcl_session_get_w_handle (wrk, session_handle);
2205 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2208 is_ct = vcl_session_is_ct (s);
2209 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2211 ASSERT (s->rx_bytes_pending >= n_bytes);
2212 s->rx_bytes_pending -= n_bytes;
2216 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2218 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2220 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2226 vppcom_session_write_inline (vcl_worker_t *wrk, vcl_session_t *s, void *buf,
2227 size_t n, u8 is_flush, u8 is_dgram)
2229 int n_write, is_nonblocking;
2230 session_evt_type_t et;
2231 svm_fifo_t *tx_fifo;
2235 /* Accept zero length writes but just return */
2236 if (PREDICT_FALSE (!n))
2239 if (PREDICT_FALSE (!buf))
2240 return VPPCOM_EFAULT;
2242 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2244 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2245 " session!", s->session_index, s->vpp_handle);
2246 return VPPCOM_EBADFD;
2249 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2251 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2252 s->session_index, s->vpp_handle, s->session_state,
2253 vcl_session_state_str (s->session_state));
2254 return vcl_session_closed_error (s);;
2257 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_WR_SHUTDOWN))
2259 VDBG (1, "session %u [0x%llx]: is shutdown! state 0x%x (%s)",
2260 s->session_index, s->vpp_handle, s->session_state,
2261 vcl_session_state_str (s->session_state));
2262 return VPPCOM_EPIPE;
2265 is_ct = vcl_session_is_ct (s);
2266 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2267 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2269 mq = wrk->app_event_queue;
2270 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2274 return VPPCOM_EWOULDBLOCK;
2276 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2278 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2279 if (vcl_session_is_closing (s))
2280 return vcl_session_closing_error (s);
2282 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2283 vcl_worker_flush_mq_events (wrk);
2287 et = SESSION_IO_EVT_TX;
2288 if (is_flush && !is_ct)
2289 et = SESSION_IO_EVT_TX_FLUSH;
2293 et = vcl_session_dgram_tx_evt (s, et);
2295 app_send_dgram_raw_gso (tx_fifo, &s->transport, s->vpp_evt_q, buf, n,
2296 s->gso_size, et, 0 /* do_evt */, SVM_Q_WAIT);
2300 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2301 0 /* do_evt */, SVM_Q_WAIT);
2304 if (svm_fifo_set_event (s->tx_fifo))
2305 app_send_io_evt_to_vpp (
2306 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2308 /* The underlying fifo segment can run out of memory */
2309 if (PREDICT_FALSE (n_write < 0))
2310 return VPPCOM_EAGAIN;
2312 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2313 s->vpp_handle, n_write);
2319 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2321 vcl_worker_t *wrk = vcl_worker_get_current ();
2324 s = vcl_session_get_w_handle (wrk, session_handle);
2325 if (PREDICT_FALSE (!s))
2326 return VPPCOM_EBADFD;
2328 return vppcom_session_write_inline (wrk, s, buf, n, 0 /* is_flush */,
2329 s->is_dgram ? 1 : 0);
2333 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2335 vcl_worker_t *wrk = vcl_worker_get_current ();
2338 s = vcl_session_get_w_handle (wrk, session_handle);
2339 if (PREDICT_FALSE (!s))
2340 return VPPCOM_EBADFD;
2342 return vppcom_session_write_inline (wrk, s, buf, n, 1 /* is_flush */,
2343 s->is_dgram ? 1 : 0);
2346 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2347 if (PREDICT_FALSE (!_s->rx_fifo)) \
2349 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2351 if (!vcl_session_is_ct (_s)) \
2353 svm_fifo_unset_event (_s->rx_fifo); \
2354 if (svm_fifo_is_empty (_s->rx_fifo)) \
2357 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2359 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2360 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2366 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2367 unsigned long n_bits, unsigned long *read_map,
2368 unsigned long *write_map,
2369 unsigned long *except_map, u32 * bits_set)
2371 session_disconnected_msg_t *disconnected_msg;
2372 session_connected_msg_t *connected_msg;
2376 switch (e->event_type)
2378 case SESSION_IO_EVT_RX:
2379 sid = e->session_index;
2380 s = vcl_session_get (wrk, sid);
2381 if (!s || !vcl_session_is_open (s))
2383 vcl_fifo_rx_evt_valid_or_break (s);
2384 if (sid < n_bits && read_map)
2386 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2390 case SESSION_IO_EVT_TX:
2391 sid = e->session_index;
2392 s = vcl_session_get (wrk, sid);
2393 if (!s || !vcl_session_is_open (s))
2395 if (sid < n_bits && write_map)
2397 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2401 case SESSION_CTRL_EVT_ACCEPTED:
2403 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2405 s = vcl_session_get (wrk, e->session_index);
2408 sid = s->session_index;
2409 if (sid < n_bits && read_map)
2411 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2415 case SESSION_CTRL_EVT_CONNECTED:
2418 connected_msg = (session_connected_msg_t *) e->data;
2419 sid = vcl_session_connected_handler (wrk, connected_msg);
2422 sid = e->session_index;
2423 if (sid == VCL_INVALID_SESSION_INDEX)
2425 if (!(sid < n_bits && write_map))
2427 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2429 s = vcl_session_get (wrk, sid);
2430 /* We didn't have a fifo when the event was added */
2431 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2433 case SESSION_CTRL_EVT_DISCONNECTED:
2434 disconnected_msg = (session_disconnected_msg_t *) e->data;
2435 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2438 sid = s->session_index;
2439 if (sid < n_bits && except_map)
2441 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2445 case SESSION_CTRL_EVT_RESET:
2446 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2447 if (sid < n_bits && except_map)
2449 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2453 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2454 vcl_session_unlisten_reply_handler (wrk, e->data);
2456 case SESSION_CTRL_EVT_MIGRATED:
2457 vcl_session_migrated_handler (wrk, e->data);
2459 case SESSION_CTRL_EVT_CLEANUP:
2460 vcl_session_cleanup_handler (wrk, e->data);
2462 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2463 vcl_session_worker_update_reply_handler (wrk, e->data);
2465 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2466 vcl_session_req_worker_update_handler (wrk, e->data);
2468 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2469 vcl_session_app_add_segment_handler (wrk, e->data);
2471 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2472 vcl_session_app_del_segment_handler (wrk, e->data);
2474 case SESSION_CTRL_EVT_APP_WRK_RPC:
2475 vcl_worker_rpc_handler (wrk, e->data);
2478 clib_warning ("unhandled: %u", e->event_type);
2484 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2485 unsigned long n_bits, unsigned long *read_map,
2486 unsigned long *write_map, unsigned long *except_map,
2487 double time_to_wait, u32 * bits_set)
2489 svm_msg_q_msg_t *msg;
2493 if (svm_msg_q_is_empty (mq))
2500 else if (time_to_wait < 0)
2501 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2504 if (svm_msg_q_timedwait (mq, time_to_wait))
2508 vcl_mq_dequeue_batch (wrk, mq, ~0);
2510 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2512 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2513 e = svm_msg_q_msg_data (mq, msg);
2514 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2515 except_map, bits_set);
2516 svm_msg_q_free_msg (mq, msg);
2518 vec_reset_length (wrk->mq_msg_vector);
2519 vcl_handle_pending_wrk_updates (wrk);
2524 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2525 vcl_si_set * read_map, vcl_si_set * write_map,
2526 vcl_si_set * except_map, double time_to_wait,
2529 double wait = 0, start = 0;
2533 wait = time_to_wait;
2534 start = clib_time_now (&wrk->clib_time);
2539 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2540 write_map, except_map, wait, bits_set);
2546 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2554 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2555 vcl_si_set * read_map, vcl_si_set * write_map,
2556 vcl_si_set * except_map, double time_to_wait,
2559 vcl_mq_evt_conn_t *mqc;
2560 int __clib_unused n_read;
2564 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
2566 vcl_api_retry_attach (wrk);
2570 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2571 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2572 vec_len (wrk->mq_events), time_to_wait);
2573 for (i = 0; i < n_mq_evts; i++)
2575 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
2577 vcl_api_handle_disconnect (wrk);
2581 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2582 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2583 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2584 except_map, 0, bits_set);
2587 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2591 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2592 vcl_si_set * except_map, double time_to_wait)
2594 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2595 vcl_worker_t *wrk = vcl_worker_get_current ();
2596 vcl_session_t *s = 0;
2599 if (n_bits && read_map)
2601 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2602 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2603 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2604 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2606 if (n_bits && write_map)
2608 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2609 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2610 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2611 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2613 if (n_bits && except_map)
2615 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2616 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2617 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2618 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2627 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2629 if (!(s = vcl_session_get (wrk, sid)))
2631 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2636 if (vcl_session_write_ready (s))
2638 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2643 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
2651 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2653 if (!(s = vcl_session_get (wrk, sid)))
2655 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2660 if (vcl_session_read_ready (s))
2662 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2669 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2671 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2672 read_map, write_map, except_map, &bits_set);
2674 vec_reset_length (wrk->unhandled_evts_vector);
2676 if (vcm->cfg.use_mq_eventfd)
2677 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2678 time_to_wait, &bits_set);
2680 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2681 time_to_wait, &bits_set);
2687 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2689 vppcom_epoll_t *vep;
2690 u32 sh = vep_handle;
2693 if (VPPCOM_DEBUG <= 3)
2696 s = vcl_session_get_w_handle (wrk, vep_handle);
2697 if (PREDICT_FALSE (!s))
2699 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2702 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2704 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2708 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2711 " is_vep_session = %u\n"
2712 " next_sh = 0x%x (%u)\n"
2713 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2714 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2716 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2718 s = vcl_session_get_w_handle (wrk, sh);
2719 if (PREDICT_FALSE (!s))
2721 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2724 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2726 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2728 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2730 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2734 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2735 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2736 sh, s->vep.vep_sh, vep_handle);
2737 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2739 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2741 " next_sh = 0x%x (%u)\n"
2742 " prev_sh = 0x%x (%u)\n"
2743 " vep_sh = 0x%x (%u)\n"
2744 " ev.events = 0x%x\n"
2745 " ev.data.u64 = 0x%llx\n"
2748 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2749 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2750 vep->ev.data.u64, vep->et_mask);
2755 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2759 vppcom_epoll_create (void)
2761 vcl_worker_t *wrk = vcl_worker_get_current ();
2762 vcl_session_t *vep_session;
2764 vep_session = vcl_session_alloc (wrk);
2766 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2767 vep_session->vep.vep_sh = ~0;
2768 vep_session->vep.next_sh = ~0;
2769 vep_session->vep.prev_sh = ~0;
2770 vep_session->vpp_handle = ~0;
2772 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2773 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2775 return vcl_session_handle (vep_session);
2779 vcl_epoll_ctl_add_unhandled_event (vcl_worker_t *wrk, vcl_session_t *s,
2780 u8 is_epollet, session_evt_type_t evt)
2784 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
2785 vcl_epoll_lt_add (wrk, s);
2789 session_event_t e = { 0 };
2790 e.session_index = s->session_index;
2792 if (evt == SESSION_IO_EVT_RX)
2793 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2794 vec_add1 (wrk->unhandled_evts_vector, e);
2798 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2799 struct epoll_event *event)
2801 vcl_worker_t *wrk = vcl_worker_get_current ();
2802 int rv = VPPCOM_OK, add_evt = 0;
2803 vcl_session_t *vep_session;
2806 if (vep_handle == session_handle)
2808 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2809 return VPPCOM_EINVAL;
2812 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2813 if (PREDICT_FALSE (!vep_session))
2815 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2816 return VPPCOM_EBADFD;
2818 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2820 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2821 return VPPCOM_EINVAL;
2824 ASSERT (vep_session->vep.vep_sh == ~0);
2825 ASSERT (vep_session->vep.prev_sh == ~0);
2827 s = vcl_session_get_w_handle (wrk, session_handle);
2828 if (PREDICT_FALSE (!s))
2830 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2831 return VPPCOM_EBADFD;
2833 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2835 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2836 return VPPCOM_EINVAL;
2842 if (PREDICT_FALSE (!event))
2844 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2845 return VPPCOM_EINVAL;
2847 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2849 VDBG (0, "EPOLL_CTL_ADD: %u already epolled!", s->session_index);
2853 if (vep_session->vep.next_sh != ~0)
2855 vcl_session_t *next_session;
2856 next_session = vcl_session_get_w_handle (wrk,
2857 vep_session->vep.next_sh);
2858 if (PREDICT_FALSE (!next_session))
2860 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2861 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2862 return VPPCOM_EBADFD;
2864 ASSERT (next_session->vep.prev_sh == vep_handle);
2865 next_session->vep.prev_sh = session_handle;
2867 s->vep.next_sh = vep_session->vep.next_sh;
2868 s->vep.prev_sh = vep_handle;
2869 s->vep.vep_sh = vep_handle;
2870 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2871 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
2873 s->vep.ev.events |= EPOLLHUP | EPOLLERR;
2874 s->flags &= ~VCL_SESSION_F_IS_VEP;
2875 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2876 vep_session->vep.next_sh = session_handle;
2878 if ((event->events & EPOLLOUT))
2880 int write_ready = vcl_session_write_ready (s);
2882 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2883 if (write_ready > 0)
2885 /* Generate EPOLLOUT if tx fifo not full */
2886 vcl_epoll_ctl_add_unhandled_event (
2887 wrk, s, event->events & EPOLLET, SESSION_IO_EVT_TX);
2892 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
2895 /* Generate EPOLLIN if rx fifo has data */
2896 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2898 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2902 if (!add_evt && vcl_session_is_closing (s))
2904 session_event_t e = { 0 };
2905 if (s->session_state == VCL_STATE_VPP_CLOSING)
2906 e.event_type = SESSION_CTRL_EVT_DISCONNECTED;
2908 e.event_type = SESSION_CTRL_EVT_RESET;
2909 e.session_index = s->session_index;
2911 vec_add1 (wrk->unhandled_evts_vector, e);
2913 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2914 vep_handle, session_handle, event->events, event->data.u64);
2915 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2919 if (PREDICT_FALSE (!event))
2921 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2925 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2927 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2931 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2933 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2934 session_handle, s->vep.vep_sh, vep_handle);
2939 /* Generate EPOLLOUT if session write ready and event was not on */
2940 if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT))
2942 /* Fifo size load acq synchronized with update store rel */
2943 int write_ready = vcl_session_write_ready (s);
2945 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2946 if (write_ready > 0)
2947 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2950 /* Request deq ntf in case dequeue happened while updating flag */
2951 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
2953 else if (!(event->events & EPOLLOUT))
2954 vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2956 /* Generate EPOLLIN if session read ready and event was not on */
2957 if ((event->events & EPOLLIN) && !(s->vep.ev.events & EPOLLIN) &&
2958 (vcl_session_read_ready (s) > 0))
2960 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2963 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2965 s->vep.ev.events |= EPOLLHUP | EPOLLERR;
2967 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2968 vep_handle, session_handle, event->events, event->data.u64);
2972 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2974 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2978 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2980 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2981 session_handle, s->vep.vep_sh, vep_handle);
2986 if (s->vep.prev_sh == vep_handle)
2987 vep_session->vep.next_sh = s->vep.next_sh;
2990 vcl_session_t *prev_session;
2991 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2992 if (PREDICT_FALSE (!prev_session))
2994 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2995 s->vep.prev_sh, session_handle);
2996 return VPPCOM_EBADFD;
2998 ASSERT (prev_session->vep.next_sh == session_handle);
2999 prev_session->vep.next_sh = s->vep.next_sh;
3001 if (s->vep.next_sh != ~0)
3003 vcl_session_t *next_session;
3004 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
3005 if (PREDICT_FALSE (!next_session))
3007 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
3008 s->vep.next_sh, session_handle);
3009 return VPPCOM_EBADFD;
3011 ASSERT (next_session->vep.prev_sh == session_handle);
3012 next_session->vep.prev_sh = s->vep.prev_sh;
3015 if (s->vep.lt_next != VCL_INVALID_SESSION_INDEX)
3016 vcl_epoll_lt_del (wrk, s);
3018 memset (&s->vep, 0, sizeof (s->vep));
3019 s->vep.next_sh = ~0;
3020 s->vep.prev_sh = ~0;
3022 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
3023 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
3025 if (vcl_session_is_open (s))
3026 vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3028 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
3030 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
3034 VDBG (0, "Invalid operation (%d)!", op);
3038 vep_verify_epoll_chain (wrk, vep_handle);
3045 vcl_ep_session_needs_evt (vcl_session_t *s, u32 evt)
3047 /* No event if not epolled / events reset on hup or level-trigger on */
3048 return ((s->vep.ev.events & evt) &&
3049 s->vep.lt_next == VCL_INVALID_SESSION_INDEX);
3053 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
3054 struct epoll_event *events, u32 * num_ev)
3056 session_disconnected_msg_t *disconnected_msg;
3057 session_connected_msg_t *connected_msg;
3058 u32 sid = ~0, session_events;
3059 u64 session_evt_data = ~0;
3063 switch (e->event_type)
3065 case SESSION_IO_EVT_RX:
3066 sid = e->session_index;
3067 s = vcl_session_get (wrk, sid);
3068 if (vcl_session_is_closed (s))
3070 vcl_fifo_rx_evt_valid_or_break (s);
3071 if (!vcl_ep_session_needs_evt (s, EPOLLIN) ||
3072 (s->flags & VCL_SESSION_F_HAS_RX_EVT))
3074 session_events = s->vep.ev.events;
3076 events[*num_ev].events = EPOLLIN;
3077 session_evt_data = s->vep.ev.data.u64;
3078 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
3080 case SESSION_IO_EVT_TX:
3081 sid = e->session_index;
3082 s = vcl_session_get (wrk, sid);
3083 if (!s || !vcl_session_is_open (s))
3085 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ? s->ct_tx_fifo :
3087 if (!vcl_ep_session_needs_evt (s, EPOLLOUT))
3089 session_events = s->vep.ev.events;
3091 events[*num_ev].events = EPOLLOUT;
3092 session_evt_data = s->vep.ev.data.u64;
3094 case SESSION_CTRL_EVT_ACCEPTED:
3096 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
3098 s = vcl_session_get (wrk, e->session_index);
3099 if (!s || !vcl_ep_session_needs_evt (s, EPOLLIN))
3101 sid = s->session_index;
3102 session_events = s->vep.ev.events;
3104 events[*num_ev].events = EPOLLIN;
3105 session_evt_data = s->vep.ev.data.u64;
3107 case SESSION_CTRL_EVT_CONNECTED:
3110 connected_msg = (session_connected_msg_t *) e->data;
3111 sid = vcl_session_connected_handler (wrk, connected_msg);
3114 sid = e->session_index;
3115 s = vcl_session_get (wrk, sid);
3116 if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLOUT))
3118 /* We didn't have a fifo when the event was added */
3119 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3121 session_events = s->vep.ev.events;
3122 /* Generate EPOLLOUT because there's no connected event */
3123 events[*num_ev].events = EPOLLOUT;
3124 session_evt_data = s->vep.ev.data.u64;
3125 if (s->session_state == VCL_STATE_DETACHED)
3127 events[*num_ev].events |= EPOLLHUP;
3128 s->vep.ev.events = 0;
3131 case SESSION_CTRL_EVT_DISCONNECTED:
3134 disconnected_msg = (session_disconnected_msg_t *) e->data;
3135 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
3139 s = vcl_session_get (wrk, e->session_index);
3140 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3142 if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLHUP))
3144 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3145 vcl_session_free (wrk, s);
3148 sid = s->session_index;
3149 session_events = s->vep.ev.events;
3151 if (EPOLLRDHUP & session_events)
3153 /* If app can distinguish between RDHUP and HUP,
3154 * we make finer control */
3155 events[*num_ev].events = EPOLLRDHUP;
3156 if (s->flags & VCL_SESSION_F_WR_SHUTDOWN)
3158 events[*num_ev].events |= EPOLLHUP;
3163 events[*num_ev].events = EPOLLHUP;
3165 session_evt_data = s->vep.ev.data.u64;
3166 s->vep.ev.events = 0;
3168 case SESSION_CTRL_EVT_BOUND:
3169 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
3171 case SESSION_CTRL_EVT_RESET:
3175 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
3176 s = vcl_session_get (wrk, sid);
3180 sid = e->session_index;
3181 s = vcl_session_get (wrk, sid);
3182 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3184 if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLHUP))
3186 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3187 vcl_session_free (wrk, s);
3190 session_events = s->vep.ev.events;
3192 events[*num_ev].events = EPOLLERR | EPOLLHUP;
3193 if ((EPOLLRDHUP & session_events) &&
3194 (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3196 events[*num_ev].events |= EPOLLRDHUP;
3198 if ((EPOLLIN & session_events) && (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3200 events[*num_ev].events |= EPOLLIN;
3202 session_evt_data = s->vep.ev.data.u64;
3203 s->vep.ev.events = 0;
3205 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
3206 vcl_session_unlisten_reply_handler (wrk, e->data);
3208 case SESSION_CTRL_EVT_MIGRATED:
3209 vcl_session_migrated_handler (wrk, e->data);
3211 case SESSION_CTRL_EVT_CLEANUP:
3212 vcl_session_cleanup_handler (wrk, e->data);
3214 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
3215 vcl_session_req_worker_update_handler (wrk, e->data);
3217 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
3218 vcl_session_worker_update_reply_handler (wrk, e->data);
3220 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
3221 vcl_session_app_add_segment_handler (wrk, e->data);
3223 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
3224 vcl_session_app_del_segment_handler (wrk, e->data);
3226 case SESSION_CTRL_EVT_APP_WRK_RPC:
3227 vcl_worker_rpc_handler (wrk, e->data);
3230 VDBG (0, "unhandled: %u", e->event_type);
3236 ASSERT (s->flags & VCL_SESSION_F_IS_VEP_SESSION);
3237 events[*num_ev].data.u64 = session_evt_data;
3238 if (EPOLLONESHOT & session_events)
3240 s = vcl_session_get (wrk, sid);
3241 if (!(events[*num_ev].events & EPOLLHUP))
3242 s->vep.ev.events = EPOLLHUP | EPOLLERR;
3244 else if (!(EPOLLET & session_events))
3246 s = vcl_session_get (wrk, sid);
3247 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
3248 vcl_epoll_lt_add (wrk, s);
3255 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
3256 struct epoll_event *events, u32 maxevents,
3257 double wait_for_time, u32 * num_ev)
3259 svm_msg_q_msg_t *msg;
3263 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
3264 goto handle_dequeued;
3266 if (svm_msg_q_is_empty (mq))
3270 else if (wait_for_time < 0)
3271 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
3274 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3278 ASSERT (maxevents > *num_ev);
3279 vcl_mq_dequeue_batch (wrk, mq, ~0);
3282 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3284 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3285 e = svm_msg_q_msg_data (mq, msg);
3286 if (*num_ev < maxevents)
3287 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3289 vcl_handle_mq_event (wrk, e);
3290 svm_msg_q_free_msg (mq, msg);
3292 vec_reset_length (wrk->mq_msg_vector);
3293 vcl_handle_pending_wrk_updates (wrk);
3298 vppcom_epoll_wait_condvar (vcl_worker_t *wrk, struct epoll_event *events,
3299 int maxevents, u32 n_evts, double timeout_ms)
3306 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3311 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3312 timeout_ms, &n_evts);
3313 if (n_evts || !timeout_ms)
3316 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3322 vppcom_epoll_wait_eventfd (vcl_worker_t *wrk, struct epoll_event *events,
3323 int maxevents, u32 n_evts, double timeout_ms)
3325 int __clib_unused n_read;
3326 vcl_mq_evt_conn_t *mqc;
3331 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
3333 vcl_api_retry_attach (wrk);
3337 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3341 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3346 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3347 vec_len (wrk->mq_events), timeout_ms);
3350 VDBG (0, "epoll_wait error %u", errno);
3354 for (i = 0; i < n_mq_evts; i++)
3356 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
3358 /* api socket was closed */
3359 vcl_api_handle_disconnect (wrk);
3363 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3364 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3365 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3369 if (n_evts || !timeout_ms)
3372 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3378 vcl_epoll_wait_handle_lt (vcl_worker_t *wrk, struct epoll_event *events,
3379 int maxevents, u32 *n_evts)
3381 u32 add_event = 0, evt_flags = 0, next, *to_remove = 0, *si;
3386 ASSERT (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX);
3387 if (*n_evts >= maxevents)
3390 next = wrk->ep_lt_current;
3393 s = vcl_session_get (wrk, next);
3394 next = s->vep.lt_next;
3396 if (s->vep.ev.events == 0)
3398 vec_add1 (to_remove, s->session_index);
3401 if ((s->vep.ev.events & EPOLLIN) && (rv = vcl_session_read_ready (s)))
3404 evt_flags |= rv > 0 ? EPOLLIN : EPOLLHUP | EPOLLRDHUP;
3405 evt_data = s->vep.ev.data.u64;
3407 if ((s->vep.ev.events & EPOLLOUT) && (rv = vcl_session_write_ready (s)))
3410 evt_flags |= rv > 0 ? EPOLLOUT : EPOLLHUP | EPOLLRDHUP;
3411 evt_data = s->vep.ev.data.u64;
3413 if (!add_event && s->session_state > VCL_STATE_READY)
3416 evt_flags |= EPOLLHUP | EPOLLRDHUP;
3417 evt_data = s->vep.ev.data.u64;
3421 events[*n_evts].events = evt_flags;
3422 events[*n_evts].data.u64 = evt_data;
3423 if (EPOLLONESHOT & s->vep.ev.events)
3424 s->vep.ev.events = EPOLLHUP | EPOLLERR;
3425 if (evt_flags & EPOLLHUP)
3426 s->vep.ev.events = 0;
3430 if (*n_evts == maxevents)
3432 wrk->ep_lt_current = next;
3438 vec_add1 (to_remove, s->session_index);
3441 while (next != wrk->ep_lt_current);
3443 vec_foreach (si, to_remove)
3445 s = vcl_session_get (wrk, *si);
3446 vcl_epoll_lt_del (wrk, s);
3448 vec_free (to_remove);
3452 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3453 int maxevents, double wait_for_time)
3455 vcl_worker_t *wrk = vcl_worker_get_current ();
3456 vcl_session_t *vep_session;
3460 if (PREDICT_FALSE (maxevents <= 0))
3462 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3463 return VPPCOM_EINVAL;
3466 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3468 return VPPCOM_EBADFD;
3470 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3472 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3473 return VPPCOM_EINVAL;
3476 if (vec_len (wrk->unhandled_evts_vector))
3478 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3480 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3482 if (n_evts == maxevents)
3484 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3488 vec_reset_length (wrk->unhandled_evts_vector);
3491 if (PREDICT_FALSE (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX))
3492 vcl_epoll_wait_handle_lt (wrk, events, maxevents, &n_evts);
3494 /* Request to only drain unhandled */
3495 if ((int) wait_for_time == -2)
3499 if (vcm->cfg.use_mq_eventfd)
3500 n_evts = vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3503 n_evts = vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3510 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3511 void *buffer, uint32_t * buflen)
3513 vcl_worker_t *wrk = vcl_worker_get_current ();
3514 u32 *flags = buffer;
3515 vppcom_endpt_t *ep = buffer;
3516 transport_endpt_attr_t tea;
3517 vcl_session_t *session;
3520 session = vcl_session_get_w_handle (wrk, session_handle);
3522 return VPPCOM_EBADFD;
3526 case VPPCOM_ATTR_GET_NREAD:
3527 rv = vcl_session_read_ready (session);
3528 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3532 case VPPCOM_ATTR_GET_NWRITE:
3533 rv = vcl_session_write_ready (session);
3534 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3538 case VPPCOM_ATTR_GET_FLAGS:
3539 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3543 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3545 *buflen = sizeof (*flags);
3546 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3547 "is_nonblocking = %u", session_handle, *flags,
3548 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3554 case VPPCOM_ATTR_SET_FLAGS:
3555 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3557 if (*flags & O_NONBLOCK)
3558 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3560 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3562 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3563 " is_nonblocking = %u", session_handle, *flags,
3564 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3570 case VPPCOM_ATTR_GET_PEER_ADDR:
3571 if (PREDICT_TRUE (buffer && buflen &&
3572 (*buflen >= sizeof (*ep)) && ep->ip))
3574 ep->is_ip4 = session->transport.is_ip4;
3575 ep->port = session->transport.rmt_port;
3576 if (session->transport.is_ip4)
3577 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3578 sizeof (ip4_address_t));
3580 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3581 sizeof (ip6_address_t));
3582 *buflen = sizeof (*ep);
3584 "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3585 "addr = %U, port %u",
3586 session_handle, ep->is_ip4, vcl_format_ip46_address,
3587 &session->transport.rmt_ip,
3588 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3589 clib_net_to_host_u16 (ep->port));
3595 case VPPCOM_ATTR_GET_LCL_ADDR:
3596 if (PREDICT_TRUE (buffer && buflen &&
3597 (*buflen >= sizeof (*ep)) && ep->ip))
3599 ep->is_ip4 = session->transport.is_ip4;
3600 ep->port = session->transport.lcl_port;
3601 if (session->transport.is_ip4)
3602 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3603 sizeof (ip4_address_t));
3605 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3606 sizeof (ip6_address_t));
3607 *buflen = sizeof (*ep);
3609 "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3611 session_handle, ep->is_ip4, vcl_format_ip46_address,
3612 &session->transport.lcl_ip,
3613 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3614 clib_net_to_host_u16 (ep->port));
3620 case VPPCOM_ATTR_GET_ORIGINAL_DST:
3621 if (!session->transport.is_ip4)
3623 /* now original dst only support ipv4*/
3624 rv = VPPCOM_EAFNOSUPPORT;
3627 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*ep)) &&
3630 ep->is_ip4 = session->transport.is_ip4;
3631 ep->port = session->original_dst_port;
3632 clib_memcpy_fast (ep->ip, &session->original_dst_ip4,
3633 sizeof (ip4_address_t));
3634 *buflen = sizeof (*ep);
3636 "VPPCOM_ATTR_GET_ORIGINAL_DST: sh %u, is_ip4 = %u, addr = %U"
3638 session_handle, ep->is_ip4, vcl_format_ip4_address,
3639 (ip4_address_t *) (&session->original_dst_ip4),
3640 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3641 clib_net_to_host_u16 (ep->port));
3647 case VPPCOM_ATTR_SET_LCL_ADDR:
3648 if (PREDICT_TRUE (buffer && buflen &&
3649 (*buflen >= sizeof (*ep)) && ep->ip))
3651 session->transport.is_ip4 = ep->is_ip4;
3652 session->transport.lcl_port = ep->port;
3653 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3654 *buflen = sizeof (*ep);
3656 "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3658 session_handle, ep->is_ip4, vcl_format_ip46_address,
3659 &session->transport.lcl_ip,
3660 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3661 clib_net_to_host_u16 (ep->port));
3667 case VPPCOM_ATTR_GET_LIBC_EPFD:
3668 rv = session->libc_epfd;
3669 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3672 case VPPCOM_ATTR_SET_LIBC_EPFD:
3673 if (PREDICT_TRUE (buffer && buflen &&
3674 (*buflen == sizeof (session->libc_epfd))))
3676 session->libc_epfd = *(int *) buffer;
3677 *buflen = sizeof (session->libc_epfd);
3679 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3680 session->libc_epfd, *buflen);
3686 case VPPCOM_ATTR_GET_PROTOCOL:
3687 if (buffer && buflen && (*buflen >= sizeof (int)))
3689 *(int *) buffer = session->session_type;
3690 *buflen = sizeof (int);
3692 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3693 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3699 case VPPCOM_ATTR_GET_LISTEN:
3700 if (buffer && buflen && (*buflen >= sizeof (int)))
3702 *(int *) buffer = vcl_session_has_attr (session,
3703 VCL_SESS_ATTR_LISTEN);
3704 *buflen = sizeof (int);
3706 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3713 case VPPCOM_ATTR_GET_ERROR:
3714 if (buffer && buflen && (*buflen >= sizeof (int)))
3716 *(int *) buffer = 0;
3717 *buflen = sizeof (int);
3719 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3720 *(int *) buffer, *buflen);
3726 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3727 if (buffer && buflen && (*buflen >= sizeof (u32)))
3731 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3733 svm_fifo_size (session->tx_fifo) :
3734 vcm->cfg.tx_fifo_size);
3735 *buflen = sizeof (u32);
3737 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3738 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3745 case VPPCOM_ATTR_SET_DSCP:
3746 if (buffer && buflen && (*buflen >= sizeof (u8)))
3748 session->dscp = *(u8 *) buffer;
3750 VDBG (2, "VPPCOM_ATTR_SET_DSCP: %u (0x%x), buflen %d,",
3751 *(u8 *) buffer, *(u8 *) buffer, *buflen);
3757 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3758 if (buffer && buflen && (*buflen == sizeof (u32)))
3761 session->sndbuf_size = *(u32 *) buffer;
3762 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3763 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3770 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3771 if (buffer && buflen && (*buflen >= sizeof (u32)))
3775 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3777 svm_fifo_size (session->rx_fifo) :
3778 vcm->cfg.rx_fifo_size);
3779 *buflen = sizeof (u32);
3781 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3782 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3788 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3789 if (buffer && buflen && (*buflen == sizeof (u32)))
3792 session->rcvbuf_size = *(u32 *) buffer;
3793 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3794 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3801 case VPPCOM_ATTR_GET_REUSEADDR:
3802 if (buffer && buflen && (*buflen >= sizeof (int)))
3805 *(int *) buffer = vcl_session_has_attr (session,
3806 VCL_SESS_ATTR_REUSEADDR);
3807 *buflen = sizeof (int);
3809 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3810 *(int *) buffer, *buflen);
3816 case VPPCOM_ATTR_SET_REUSEADDR:
3817 if (buffer && buflen && (*buflen == sizeof (int)) &&
3818 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3821 if (*(int *) buffer)
3822 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3824 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3826 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3827 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3834 case VPPCOM_ATTR_GET_REUSEPORT:
3835 if (buffer && buflen && (*buflen >= sizeof (int)))
3838 *(int *) buffer = vcl_session_has_attr (session,
3839 VCL_SESS_ATTR_REUSEPORT);
3840 *buflen = sizeof (int);
3842 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3843 *(int *) buffer, *buflen);
3849 case VPPCOM_ATTR_SET_REUSEPORT:
3850 if (buffer && buflen && (*buflen == sizeof (int)) &&
3851 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3854 if (*(int *) buffer)
3855 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3857 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3859 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3860 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3867 case VPPCOM_ATTR_GET_BROADCAST:
3868 if (buffer && buflen && (*buflen >= sizeof (int)))
3871 *(int *) buffer = vcl_session_has_attr (session,
3872 VCL_SESS_ATTR_BROADCAST);
3873 *buflen = sizeof (int);
3875 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3876 *(int *) buffer, *buflen);
3882 case VPPCOM_ATTR_SET_BROADCAST:
3883 if (buffer && buflen && (*buflen == sizeof (int)))
3886 if (*(int *) buffer)
3887 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3889 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3891 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3892 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3899 case VPPCOM_ATTR_GET_V6ONLY:
3900 if (buffer && buflen && (*buflen >= sizeof (int)))
3903 *(int *) buffer = vcl_session_has_attr (session,
3904 VCL_SESS_ATTR_V6ONLY);
3905 *buflen = sizeof (int);
3907 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3908 *(int *) buffer, *buflen);
3914 case VPPCOM_ATTR_SET_V6ONLY:
3915 if (buffer && buflen && (*buflen == sizeof (int)))
3918 if (*(int *) buffer)
3919 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3921 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3923 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3924 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3931 case VPPCOM_ATTR_GET_KEEPALIVE:
3932 if (buffer && buflen && (*buflen >= sizeof (int)))
3935 *(int *) buffer = vcl_session_has_attr (session,
3936 VCL_SESS_ATTR_KEEPALIVE);
3937 *buflen = sizeof (int);
3939 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3940 *(int *) buffer, *buflen);
3946 case VPPCOM_ATTR_SET_KEEPALIVE:
3947 if (buffer && buflen && (*buflen == sizeof (int)))
3950 if (*(int *) buffer)
3951 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3953 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3955 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3956 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3963 case VPPCOM_ATTR_GET_TCP_NODELAY:
3964 if (buffer && buflen && (*buflen >= sizeof (int)))
3967 *(int *) buffer = vcl_session_has_attr (session,
3968 VCL_SESS_ATTR_TCP_NODELAY);
3969 *buflen = sizeof (int);
3971 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3972 *(int *) buffer, *buflen);
3978 case VPPCOM_ATTR_SET_TCP_NODELAY:
3979 if (buffer && buflen && (*buflen == sizeof (int)))
3982 if (*(int *) buffer)
3983 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3985 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3987 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3988 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3995 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3996 if (buffer && buflen && (*buflen >= sizeof (int)))
3999 *(int *) buffer = vcl_session_has_attr (session,
4000 VCL_SESS_ATTR_TCP_KEEPIDLE);
4001 *buflen = sizeof (int);
4003 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
4004 *(int *) buffer, *buflen);
4010 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
4011 if (buffer && buflen && (*buflen == sizeof (int)))
4014 if (*(int *) buffer)
4015 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
4017 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
4019 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
4020 vcl_session_has_attr (session,
4021 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
4027 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
4028 if (buffer && buflen && (*buflen >= sizeof (int)))
4031 *(int *) buffer = vcl_session_has_attr (session,
4032 VCL_SESS_ATTR_TCP_KEEPINTVL);
4033 *buflen = sizeof (int);
4035 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
4036 *(int *) buffer, *buflen);
4042 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
4043 if (buffer && buflen && (*buflen == sizeof (int)))
4046 if (*(int *) buffer)
4047 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
4049 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
4051 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
4052 vcl_session_has_attr (session,
4053 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
4059 case VPPCOM_ATTR_GET_TCP_USER_MSS:
4060 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4066 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4067 tea.mss = *(u32 *) buffer;
4068 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
4069 rv = VPPCOM_ENOPROTOOPT;
4073 *(u32 *) buffer = tea.mss;
4074 *buflen = sizeof (int);
4077 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
4080 case VPPCOM_ATTR_SET_TCP_USER_MSS:
4081 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4087 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4088 tea.mss = *(u32 *) buffer;
4089 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
4090 rv = VPPCOM_ENOPROTOOPT;
4092 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
4096 case VPPCOM_ATTR_SET_CONNECTED:
4097 session->flags |= VCL_SESSION_F_CONNECTED;
4100 case VPPCOM_ATTR_SET_CKPAIR:
4101 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
4102 !vcl_session_has_crypto (session))
4107 if (!session->ext_config)
4109 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_CRYPTO,
4110 sizeof (transport_endpt_ext_cfg_t));
4112 else if (session->ext_config->type != TRANSPORT_ENDPT_EXT_CFG_CRYPTO)
4118 session->ext_config->crypto.ckpair_index = *(uint32_t *) buffer;
4121 case VPPCOM_ATTR_SET_VRF:
4122 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4127 session->vrf = *(u32 *) buffer;
4130 case VPPCOM_ATTR_GET_VRF:
4131 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4136 *(u32 *) buffer = session->vrf;
4137 *buflen = sizeof (u32);
4140 case VPPCOM_ATTR_GET_DOMAIN:
4141 if (!(buffer && buflen && (*buflen >= sizeof (int))))
4147 if (session->transport.is_ip4)
4148 *(int *) buffer = AF_INET;
4150 *(int *) buffer = AF_INET6;
4151 *buflen = sizeof (int);
4153 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
4157 case VPPCOM_ATTR_SET_ENDPT_EXT_CFG:
4158 if (!(buffer && buflen && (*buflen > 0)))
4163 if (session->ext_config)
4168 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_NONE,
4169 *buflen + sizeof (u32));
4170 clib_memcpy (session->ext_config->data, buffer, *buflen);
4171 session->ext_config->len = *buflen;
4173 case VPPCOM_ATTR_SET_IP_PKTINFO:
4174 if (buffer && buflen && (*buflen == sizeof (int)) &&
4175 !vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO))
4177 if (*(int *) buffer)
4178 vcl_session_set_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4180 vcl_session_clear_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4182 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d",
4183 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO),
4190 case VPPCOM_ATTR_GET_IP_PKTINFO:
4191 if (buffer && buflen && (*buflen >= sizeof (int)))
4194 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4195 *buflen = sizeof (int);
4197 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d", *(int *) buffer,
4213 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
4214 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4216 vcl_worker_t *wrk = vcl_worker_get_current ();
4217 vcl_session_t *session;
4221 rv = vppcom_session_read (session_handle, buffer, buflen);
4222 else if (flags & MSG_PEEK)
4223 rv = vppcom_session_peek (session_handle, buffer, buflen);
4226 VDBG (0, "Unsupport flags for recvfrom %d", flags);
4227 return VPPCOM_EAFNOSUPPORT;
4232 session = vcl_session_get_w_handle (wrk, session_handle);
4233 if (session->transport.is_ip4)
4234 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
4235 sizeof (ip4_address_t));
4237 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
4238 sizeof (ip6_address_t));
4239 ep->is_ip4 = session->transport.is_ip4;
4240 ep->port = session->transport.rmt_port;
4247 vcl_handle_ep_app_tlvs (vcl_session_t *s, vppcom_endpt_t *ep)
4249 vppcom_endpt_tlv_t *tlv = ep->app_tlvs;
4253 switch (tlv->data_type)
4255 case VCL_UDP_SEGMENT:
4256 s->gso_size = *(u16 *) tlv->data;
4258 case VCL_IP_PKTINFO:
4259 clib_memcpy_fast (&s->transport.lcl_ip, (ip4_address_t *) tlv->data,
4260 sizeof (ip4_address_t));
4263 VDBG (0, "Ignorning unsupported app tlv %u", tlv->data_type);
4266 tlv = VCL_EP_NEXT_APP_TLV (ep, tlv);
4272 vppcom_session_sendto (uint32_t session_handle, void *buffer,
4273 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4275 vcl_worker_t *wrk = vcl_worker_get_current ();
4278 s = vcl_session_get_w_handle (wrk, session_handle);
4279 if (PREDICT_FALSE (!s))
4280 return VPPCOM_EBADFD;
4284 if (!vcl_session_is_cl (s))
4285 return VPPCOM_EINVAL;
4287 s->transport.is_ip4 = ep->is_ip4;
4288 s->transport.rmt_port = ep->port;
4289 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
4292 vcl_handle_ep_app_tlvs (s, ep);
4294 /* Session not connected/bound in vpp. Create it by 'connecting' it */
4295 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
4297 u32 session_index = s->session_index;
4298 f64 timeout = vcm->cfg.session_timeout;
4301 vcl_send_session_connect (wrk, s);
4302 rv = vppcom_wait_for_session_state_change (session_index,
4307 s = vcl_session_get (wrk, session_index);
4313 // TBD check the flags and do the right thing
4314 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
4317 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
4318 s->is_dgram ? 1 : 0));
4322 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
4324 vcl_worker_t *wrk = vcl_worker_get_current ();
4325 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
4326 u32 i, keep_trying = 1;
4327 svm_msg_q_msg_t msg;
4331 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
4334 return VPPCOM_EFAULT;
4338 vcl_session_t *session;
4340 /* Dequeue all events and drop all unhandled io events */
4341 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
4343 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
4344 vcl_handle_mq_event (wrk, e);
4345 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
4347 vec_reset_length (wrk->unhandled_evts_vector);
4349 for (i = 0; i < n_sids; i++)
4351 session = vcl_session_get (wrk, vp[i].sh);
4354 vp[i].revents = POLLHUP;
4361 if (POLLIN & vp[i].events)
4363 rv = vcl_session_read_ready (session);
4366 vp[i].revents |= POLLIN;
4373 case VPPCOM_ECONNRESET:
4374 vp[i].revents = POLLHUP;
4378 vp[i].revents = POLLERR;
4385 if (POLLOUT & vp[i].events)
4387 rv = vcl_session_write_ready (session);
4390 vp[i].revents |= POLLOUT;
4397 case VPPCOM_ECONNRESET:
4398 vp[i].revents = POLLHUP;
4402 vp[i].revents = POLLERR;
4409 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
4411 vp[i].revents = POLLNVAL;
4415 if (wait_for_time != -1)
4416 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
4418 while ((num_ev == 0) && keep_trying);
4424 vppcom_mq_epoll_fd (void)
4426 vcl_worker_t *wrk = vcl_worker_get_current ();
4427 return wrk->mqs_epfd;
4431 vppcom_session_index (vcl_session_handle_t session_handle)
4433 return session_handle & 0xFFFFFF;
4437 vppcom_session_worker (vcl_session_handle_t session_handle)
4439 return session_handle >> 24;
4443 vppcom_worker_register (void)
4445 if (!vcl_worker_alloc_and_init ())
4446 return VPPCOM_EEXIST;
4448 if (vcl_worker_register_with_vpp ())
4449 return VPPCOM_EEXIST;
4455 vppcom_worker_unregister (void)
4457 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
4458 vcl_set_worker_index (~0);
4462 vppcom_worker_index_set (int index)
4464 vcl_set_worker_index (index);
4468 vppcom_worker_index (void)
4470 return vcl_get_worker_index ();
4474 vppcom_worker_mqs_epfd (void)
4476 vcl_worker_t *wrk = vcl_worker_get_current ();
4477 if (!vcm->cfg.use_mq_eventfd)
4479 return wrk->mqs_epfd;
4483 vppcom_session_is_connectable_listener (uint32_t session_handle)
4485 vcl_session_t *session;
4486 vcl_worker_t *wrk = vcl_worker_get_current ();
4487 session = vcl_session_get_w_handle (wrk, session_handle);
4489 return VPPCOM_EBADFD;
4490 return vcl_session_is_connectable_listener (wrk, session);
4494 vppcom_session_listener (uint32_t session_handle)
4496 vcl_worker_t *wrk = vcl_worker_get_current ();
4497 vcl_session_t *listen_session, *session;
4498 session = vcl_session_get_w_handle (wrk, session_handle);
4500 return VPPCOM_EBADFD;
4501 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
4502 return VPPCOM_EBADFD;
4503 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4504 if (!listen_session)
4505 return VPPCOM_EBADFD;
4506 return vcl_session_handle (listen_session);
4510 vppcom_session_n_accepted (uint32_t session_handle)
4512 vcl_worker_t *wrk = vcl_worker_get_current ();
4513 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4515 return VPPCOM_EBADFD;
4516 return session->n_accepted_sessions;
4520 vppcom_proto_str (vppcom_proto_t proto)
4522 char const *proto_str;
4526 case VPPCOM_PROTO_TCP:
4529 case VPPCOM_PROTO_UDP:
4532 case VPPCOM_PROTO_TLS:
4535 case VPPCOM_PROTO_QUIC:
4538 case VPPCOM_PROTO_DTLS:
4541 case VPPCOM_PROTO_SRTP:
4545 proto_str = "UNKNOWN";
4552 vppcom_retval_str (int retval)
4563 st = "VPPCOM_EAGAIN";
4567 st = "VPPCOM_EFAULT";
4571 st = "VPPCOM_ENOMEM";
4575 st = "VPPCOM_EINVAL";
4579 st = "VPPCOM_EBADFD";
4582 case VPPCOM_EAFNOSUPPORT:
4583 st = "VPPCOM_EAFNOSUPPORT";
4586 case VPPCOM_ECONNABORTED:
4587 st = "VPPCOM_ECONNABORTED";
4590 case VPPCOM_ECONNRESET:
4591 st = "VPPCOM_ECONNRESET";
4594 case VPPCOM_ENOTCONN:
4595 st = "VPPCOM_ENOTCONN";
4598 case VPPCOM_ECONNREFUSED:
4599 st = "VPPCOM_ECONNREFUSED";
4602 case VPPCOM_ETIMEDOUT:
4603 st = "VPPCOM_ETIMEDOUT";
4606 case VPPCOM_EADDRINUSE:
4607 st = "VPPCOM_EADDRINUSE";
4611 st = "UNKNOWN_STATE";
4619 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4621 if (vcm->cfg.vpp_app_socket_api)
4622 return vcl_sapi_add_cert_key_pair (ckpair);
4624 return vcl_bapi_add_cert_key_pair (ckpair);
4628 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4630 if (vcm->cfg.vpp_app_socket_api)
4631 return vcl_sapi_del_cert_key_pair (ckpair_index);
4633 return vcl_bapi_del_cert_key_pair (ckpair_index);
4637 vppcom_session_get_error (uint32_t session_handle)
4639 vcl_worker_t *wrk = vcl_worker_get_current ();
4640 vcl_session_t *session = 0;
4642 session = vcl_session_get_w_handle (wrk, session_handle);
4644 return VPPCOM_EBADFD;
4646 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
4648 VWRN ("epoll session %u! will not have connect", session->session_index);
4649 return VPPCOM_EBADFD;
4652 if (session->vpp_error == SESSION_E_PORTINUSE)
4653 return VPPCOM_EADDRINUSE;
4654 else if (session->vpp_error == SESSION_E_REFUSED)
4655 return VPPCOM_ECONNREFUSED;
4656 else if (session->vpp_error != SESSION_E_NONE)
4657 return VPPCOM_EFAULT;
4663 vppcom_worker_is_detached (void)
4665 vcl_worker_t *wrk = vcl_worker_get_current ();
4667 if (!vcm->cfg.use_mq_eventfd)
4668 return VPPCOM_ENOTSUP;
4670 return wrk->api_client_handle == ~0;
4674 * fd.io coding-style-patch-verification: ON
4677 * eval: (c-set-style "gnu")