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;
548 session->vpp_error = mp->retval;
553 VDBG (0, "session %u [0x%llx]: Invalid session index!", sid,
555 return VCL_INVALID_SESSION_INDEX;
559 session->vpp_handle = mp->handle;
560 session->transport.is_ip4 = mp->lcl_is_ip4;
561 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
562 sizeof (ip46_address_t));
563 session->transport.lcl_port = mp->lcl_port;
564 vcl_session_table_add_listener (wrk, mp->handle, sid);
565 session->session_state = VCL_STATE_LISTEN;
566 session->flags &= ~VCL_SESSION_F_PENDING_LISTEN;
568 if (vcl_session_is_cl (session))
570 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
571 mp->tx_fifo, mp->vpp_evt_q, mp->mq_index,
574 VDBG (0, "session %u [0x%llx]: failed to attach fifos",
575 session->session_index, session->vpp_handle);
576 session->session_state = VCL_STATE_DETACHED;
577 return VCL_INVALID_SESSION_INDEX;
581 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
586 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
588 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
591 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
594 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
597 if (s->session_state != VCL_STATE_DISCONNECT)
599 /* Connected udp listener */
600 if (s->session_type == VPPCOM_PROTO_UDP
601 && s->session_state == VCL_STATE_CLOSED)
604 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
609 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
610 s->session_index, mp->handle, format_session_error, mp->retval);
612 if (mp->context != wrk->wrk_index)
613 VDBG (0, "wrong context");
615 vcl_session_table_del_vpp_handle (wrk, mp->handle);
616 vcl_session_free (wrk, s);
620 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
622 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
626 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
629 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
633 /* Only validate if a value is provided */
634 if (mp->segment_handle != SESSION_INVALID_HANDLE)
636 fs_index = vcl_segment_table_lookup (mp->segment_handle);
637 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
639 VDBG (0, "segment %lx for session %u is not mounted!",
640 mp->segment_handle, s->session_index);
641 s->session_state = VCL_STATE_DETACHED;
646 s->vpp_handle = mp->new_handle;
648 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
649 mp->vpp_thread_index, &s->vpp_evt_q);
651 vcl_session_table_del_vpp_handle (wrk, mp->handle);
652 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
654 /* Generate new tx event if we have outstanding data */
655 if (svm_fifo_has_event (s->tx_fifo))
656 app_send_io_evt_to_vpp (s->vpp_evt_q,
657 s->tx_fifo->shr->master_session_index,
658 SESSION_IO_EVT_TX, SVM_Q_WAIT);
660 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
661 mp->vpp_thread_index, mp->new_handle);
664 static vcl_session_t *
665 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
667 vcl_session_msg_t *vcl_msg;
668 vcl_session_t *session;
670 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
671 if (PREDICT_FALSE (session != 0))
672 VWRN ("session overlap handle %lu state %u!", msg->handle,
673 session->session_state);
675 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
678 VERR ("couldn't find listen session: listener handle %llx",
679 msg->listener_handle);
683 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
685 vcl_msg->accepted_msg = *msg;
686 /* Session handle points to listener until fully accepted by app */
687 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
692 static vcl_session_t *
693 vcl_session_disconnected_handler (vcl_worker_t * wrk,
694 session_disconnected_msg_t * msg)
696 vcl_session_t *session;
698 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
701 VWRN ("request to disconnect unknown handle 0x%llx", msg->handle);
705 /* Late disconnect notification on a session that has been closed */
706 if (session->session_state == VCL_STATE_CLOSED)
709 /* Caught a disconnect before actually accepting the session */
710 if (session->session_state == VCL_STATE_LISTEN ||
711 session->session_state == VCL_STATE_LISTEN_NO_MQ)
713 if (!vcl_flag_accepted_session (session, msg->handle,
714 VCL_ACCEPTED_F_CLOSED))
715 VDBG (0, "session was not accepted!");
719 /* If not already reset change state */
720 if (session->session_state != VCL_STATE_DISCONNECT)
721 session->session_state = VCL_STATE_VPP_CLOSING;
727 vppcom_session_shutdown (uint32_t session_handle, int how)
729 vcl_worker_t *wrk = vcl_worker_get_current ();
730 vcl_session_t *session;
731 vcl_session_state_t state;
734 session = vcl_session_get_w_handle (wrk, session_handle);
735 if (PREDICT_FALSE (!session))
736 return VPPCOM_EBADFD;
738 vpp_handle = session->vpp_handle;
739 state = session->session_state;
741 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
742 vpp_handle, state, vcl_session_state_str (state));
744 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
746 VDBG (0, "ERROR: Cannot shutdown a listen socket!");
747 return VPPCOM_EBADFD;
750 if (how == SHUT_RD || how == SHUT_RDWR)
752 session->flags |= VCL_SESSION_F_RD_SHUTDOWN;
756 session->flags |= VCL_SESSION_F_WR_SHUTDOWN;
758 if (PREDICT_TRUE (state == VCL_STATE_READY))
760 VDBG (1, "session %u [0x%llx]: sending shutdown...",
761 session->session_index, vpp_handle);
763 vcl_send_session_shutdown (wrk, session);
770 vppcom_session_disconnect (u32 session_handle)
772 vcl_worker_t *wrk = vcl_worker_get_current ();
773 vcl_session_t *session, *listen_session;
774 vcl_session_state_t state;
777 session = vcl_session_get_w_handle (wrk, session_handle);
779 return VPPCOM_EBADFD;
781 vpp_handle = session->vpp_handle;
782 state = session->session_state;
784 VDBG (1, "session %u [0x%llx]: disconnecting state (%s)",
785 session->session_index, vpp_handle, vcl_session_state_str (state));
787 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
789 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
790 return VPPCOM_EBADFD;
793 if (state == VCL_STATE_VPP_CLOSING)
795 vcl_send_session_disconnected_reply (wrk, session, 0);
796 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
797 session->session_index, vpp_handle);
801 /* Session doesn't have an event queue yet. Probably a non-blocking
802 * connect. Wait for the reply */
803 if (PREDICT_FALSE (!session->vpp_evt_q))
806 VDBG (1, "session %u [0x%llx]: sending disconnect",
807 session->session_index, vpp_handle);
808 vcl_send_session_disconnect (wrk, session);
811 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
813 listen_session = vcl_session_get (wrk, session->listener_index);
815 listen_session->n_accepted_sessions--;
822 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
824 session_cleanup_msg_t *msg;
825 vcl_session_t *session;
827 msg = (session_cleanup_msg_t *) data;
828 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
831 VWRN ("disconnect confirmed for unknown handle 0x%llx", msg->handle);
835 if (msg->type == SESSION_CLEANUP_TRANSPORT)
837 /* Transport was cleaned up before we confirmed close. Probably the
838 * app is still waiting for some data that cannot be delivered.
839 * Confirm close to make sure everything is cleaned up.
840 * Move to undetermined state to ensure that the session is not
841 * removed before both vpp and the app cleanup.
842 * - If the app closes first, the session is moved to CLOSED state
843 * and the session cleanup notification from vpp removes the
845 * - If vpp cleans up the session first, the session is moved to
846 * DETACHED state lower and subsequently the close from the app
849 if (session->session_state == VCL_STATE_VPP_CLOSING)
851 vppcom_session_disconnect (vcl_session_handle (session));
852 session->session_state = VCL_STATE_UPDATED;
854 else if (session->session_state == VCL_STATE_DISCONNECT)
856 vcl_send_session_reset_reply (wrk, session, 0);
857 session->session_state = VCL_STATE_UPDATED;
862 /* VPP will reuse the handle so clean it up now */
863 vcl_session_table_del_vpp_handle (wrk, msg->handle);
865 /* App did not close the connection yet so don't free it. */
866 if (session->session_state != VCL_STATE_CLOSED)
868 VDBG (0, "session %u: app did not close", session->session_index);
869 session->session_state = VCL_STATE_DETACHED;
870 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
874 /* Session probably tracked with epoll, disconnect not yet handled and
875 * 1) both transport and session cleanup completed 2) app closed. Wait
876 * until message is drained to free the session.
877 * See @ref vcl_handle_mq_event */
878 if (session->flags & VCL_SESSION_F_PENDING_DISCONNECT)
880 session->flags |= VCL_SESSION_F_PENDING_FREE;
884 vcl_session_free (wrk, session);
888 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
890 session_req_worker_update_msg_t *msg;
893 msg = (session_req_worker_update_msg_t *) data;
894 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
898 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
902 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
904 session_worker_update_reply_msg_t *msg;
907 msg = (session_worker_update_reply_msg_t *) data;
908 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
911 VDBG (0, "unknown handle 0x%llx", msg->handle);
917 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
918 msg->tx_fifo, (uword) ~0, ~0, 0, s))
920 VDBG (0, "failed to attach fifos for %u", s->session_index);
924 s->session_state = VCL_STATE_UPDATED;
926 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
927 s->vpp_handle, wrk->wrk_index);
931 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
934 if (vcm->cfg.vpp_app_socket_api)
935 return vcl_sapi_recv_fds (wrk, fds, n_fds);
937 return vcl_bapi_recv_fds (wrk, fds, n_fds);
941 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
943 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
944 session_app_add_segment_msg_t *msg;
948 msg = (session_app_add_segment_msg_t *) data;
952 vcl_api_recv_fd (wrk, &fd, 1);
953 seg_type = SSVM_SEGMENT_MEMFD;
956 segment_handle = msg->segment_handle;
957 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
959 clib_warning ("invalid segment handle");
963 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
966 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
970 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
975 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
977 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
978 vcl_segment_detach (msg->segment_handle);
979 VDBG (1, "Unmapped segment: %lx", msg->segment_handle);
983 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
985 if (!vcm->wrk_rpc_fn)
988 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
992 vcl_session_transport_attr_reply_handler (vcl_worker_t *wrk, void *data)
994 session_transport_attr_reply_msg_t *mp;
996 if (!wrk->session_attr_op)
999 mp = (session_transport_attr_reply_msg_t *) data;
1001 wrk->session_attr_op_rv = mp->retval;
1002 wrk->session_attr_op = 0;
1003 wrk->session_attr_rv = mp->attr;
1007 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
1009 session_disconnected_msg_t *disconnected_msg;
1010 session_connected_msg_t *connected_msg;
1011 session_reset_msg_t *reset_msg;
1012 session_event_t *ecpy;
1016 switch (e->event_type)
1018 case SESSION_IO_EVT_RX:
1019 case SESSION_IO_EVT_TX:
1020 s = vcl_session_get (wrk, e->session_index);
1021 if (!s || !vcl_session_is_open (s))
1023 vec_add1 (wrk->unhandled_evts_vector, *e);
1025 case SESSION_CTRL_EVT_BOUND:
1026 /* We can only wait for only one listen so not postponed */
1027 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1029 case SESSION_CTRL_EVT_ACCEPTED:
1030 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1031 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1033 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1035 ecpy->postponed = 1;
1036 ecpy->session_index = s->session_index;
1039 case SESSION_CTRL_EVT_CONNECTED:
1040 connected_msg = (session_connected_msg_t *) e->data;
1041 sid = vcl_session_connected_handler (wrk, connected_msg);
1042 if (!(s = vcl_session_get (wrk, sid)))
1044 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1046 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1048 ecpy->postponed = 1;
1049 ecpy->session_index = s->session_index;
1052 case SESSION_CTRL_EVT_DISCONNECTED:
1053 disconnected_msg = (session_disconnected_msg_t *) e->data;
1054 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1056 if (s->session_state == VCL_STATE_CLOSED)
1058 /* We do not postpone for blocking sessions or listen sessions because:
1059 * 1. Blocking sessions are not part of epoll instead they're used in a
1060 * synchronous manner, such as read/write and etc.
1061 * 2. Listen sessions that have not yet been accepted can't change to
1062 * VPP_CLOSING state instead can been marked as ACCEPTED_F_CLOSED.
1064 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK) &&
1065 !(s->session_state == VCL_STATE_LISTEN ||
1066 s->session_state == VCL_STATE_LISTEN_NO_MQ))
1068 s->session_state = VCL_STATE_VPP_CLOSING;
1069 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1070 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1072 ecpy->postponed = 1;
1073 ecpy->session_index = s->session_index;
1076 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1078 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1081 case SESSION_CTRL_EVT_RESET:
1082 reset_msg = (session_reset_msg_t *) e->data;
1083 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1085 if (s->session_state == VCL_STATE_CLOSED)
1087 /* We do not postpone for blocking sessions or listen sessions because:
1088 * 1. Blocking sessions are not part of epoll instead they're used in a
1089 * synchronous manner, such as read/write and etc.
1090 * 2. Listen sessions that have not yet been accepted can't change to
1091 * DISCONNECT state instead can been marked as ACCEPTED_F_RESET.
1093 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK) &&
1094 !(s->session_state == VCL_STATE_LISTEN ||
1095 s->session_state == VCL_STATE_LISTEN_NO_MQ))
1097 s->flags |= VCL_SESSION_F_PENDING_DISCONNECT;
1098 s->session_state = VCL_STATE_DISCONNECT;
1099 s->flags |= (VCL_SESSION_F_RD_SHUTDOWN | VCL_SESSION_F_WR_SHUTDOWN);
1100 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1102 ecpy->postponed = 1;
1103 ecpy->session_index = s->session_index;
1106 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1108 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1109 vcl_session_unlisten_reply_handler (wrk, e->data);
1111 case SESSION_CTRL_EVT_MIGRATED:
1112 vcl_session_migrated_handler (wrk, e->data);
1114 case SESSION_CTRL_EVT_CLEANUP:
1115 vcl_session_cleanup_handler (wrk, e->data);
1117 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1118 vcl_session_req_worker_update_handler (wrk, e->data);
1120 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1121 vcl_session_worker_update_reply_handler (wrk, e->data);
1123 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1124 vcl_session_app_add_segment_handler (wrk, e->data);
1126 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1127 vcl_session_app_del_segment_handler (wrk, e->data);
1129 case SESSION_CTRL_EVT_APP_WRK_RPC:
1130 vcl_worker_rpc_handler (wrk, e->data);
1132 case SESSION_CTRL_EVT_TRANSPORT_ATTR_REPLY:
1133 vcl_session_transport_attr_reply_handler (wrk, e->data);
1136 clib_warning ("unhandled %u", e->event_type);
1142 vppcom_wait_for_session_state_change (u32 session_index,
1143 vcl_session_state_t state,
1146 vcl_worker_t *wrk = vcl_worker_get_current ();
1147 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1148 vcl_session_t *volatile session;
1149 svm_msg_q_msg_t msg;
1154 session = vcl_session_get (wrk, session_index);
1155 if (PREDICT_FALSE (!session))
1157 return VPPCOM_EBADFD;
1159 if (session->session_state == state)
1163 if (session->session_state == VCL_STATE_DETACHED)
1165 if (session->vpp_error == SESSION_E_ALREADY_LISTENING)
1166 return VPPCOM_EADDRINUSE;
1168 return VPPCOM_ECONNREFUSED;
1171 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1176 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1177 vcl_handle_mq_event (wrk, e);
1178 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1180 while (clib_time_now (&wrk->clib_time) < timeout);
1182 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1183 vcl_session_state_str (state));
1184 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1186 return VPPCOM_ETIMEDOUT;
1190 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1192 vcl_session_state_t state;
1196 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1199 vec_foreach (sip, wrk->pending_session_wrk_updates)
1201 s = vcl_session_get (wrk, *sip);
1202 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1203 state = s->session_state;
1204 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1206 s->session_state = state;
1208 vec_reset_length (wrk->pending_session_wrk_updates);
1212 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1214 svm_msg_q_msg_t *msg;
1219 mq = wrk->app_event_queue;
1220 vcl_mq_dequeue_batch (wrk, mq, ~0);
1222 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1224 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1225 e = svm_msg_q_msg_data (mq, msg);
1226 vcl_handle_mq_event (wrk, e);
1227 svm_msg_q_free_msg (mq, msg);
1229 vec_reset_length (wrk->mq_msg_vector);
1230 vcl_handle_pending_wrk_updates (wrk);
1234 vcl_flush_mq_events (void)
1236 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1240 vppcom_session_unbind (u32 session_handle)
1242 vcl_worker_t *wrk = vcl_worker_get_current ();
1243 session_accepted_msg_t *accepted_msg;
1244 vcl_session_t *session = 0;
1245 vcl_session_msg_t *evt;
1247 session = vcl_session_get_w_handle (wrk, session_handle);
1249 return VPPCOM_EBADFD;
1251 /* Flush pending accept events, if any */
1252 while (clib_fifo_elts (session->accept_evts_fifo))
1254 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1255 accepted_msg = &evt->accepted_msg;
1256 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1257 vcl_send_session_accepted_reply (session->vpp_evt_q,
1258 accepted_msg->context,
1259 accepted_msg->handle, -1);
1261 clib_fifo_free (session->accept_evts_fifo);
1263 vcl_send_session_unlisten (wrk, session);
1265 VDBG (0, "session %u [0x%llx]: sending unbind!", session->session_index,
1266 session->vpp_handle);
1267 vcl_evt (VCL_EVT_UNBIND, session);
1269 session->vpp_handle = ~0;
1270 session->session_state = VCL_STATE_DISCONNECT;
1278 * Notify vpp of the disconnect and mark the worker as free. If we're the
1279 * last worker, do a full cleanup otherwise, since we're probably a forked
1280 * child, avoid syscalls as much as possible. We might've lost privileges.
1283 vppcom_app_exit (void)
1285 if (!pool_elts (vcm->workers))
1287 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1288 vcl_set_worker_index (~0);
1289 vcl_elog_stop (vcm);
1293 vcl_api_attach (void)
1295 if (vcm->cfg.vpp_app_socket_api)
1296 return vcl_sapi_attach ();
1298 return vcl_bapi_attach ();
1302 vcl_is_first_reattach_to_execute ()
1304 if (vcm->reattach_count == 0)
1311 vcl_set_reattach_counter ()
1313 ++vcm->reattach_count;
1315 if (vcm->reattach_count == vec_len (vcm->workers))
1316 vcm->reattach_count = 0;
1320 * Reattach vcl to vpp after it has previously been disconnected.
1322 * The logic should be:
1323 * - first worker to hit `vcl_api_retry_attach` should attach to vpp,
1324 * to reproduce the `vcl_api_attach` in `vppcom_app_create`.
1325 * - the rest of the workers should `reproduce vcl_worker_register_with_vpp`
1326 * from `vppcom_worker_register` since they were already allocated.
1330 vcl_api_retry_attach (vcl_worker_t *wrk)
1334 clib_spinlock_lock (&vcm->workers_lock);
1335 if (vcl_is_first_reattach_to_execute ())
1337 if (vcl_api_attach ())
1339 clib_spinlock_unlock (&vcm->workers_lock);
1342 vcl_set_reattach_counter ();
1343 clib_spinlock_unlock (&vcm->workers_lock);
1347 vcl_set_reattach_counter ();
1348 clib_spinlock_unlock (&vcm->workers_lock);
1349 vcl_worker_register_with_vpp ();
1352 /* Treat listeners as configuration that needs to be re-added to vpp */
1353 pool_foreach (s, wrk->sessions)
1355 if (s->flags & VCL_SESSION_F_IS_VEP)
1357 if (s->session_state == VCL_STATE_LISTEN_NO_MQ)
1358 vppcom_session_listen (vcl_session_handle (s), 10);
1360 VDBG (0, "internal error: unexpected state %d", s->session_state);
1365 vcl_api_handle_disconnect (vcl_worker_t *wrk)
1367 wrk->api_client_handle = ~0;
1368 vcl_worker_detach_sessions (wrk);
1372 vcl_api_detach (vcl_worker_t * wrk)
1374 if (wrk->api_client_handle == ~0)
1377 vcl_send_app_detach (wrk);
1379 if (vcm->cfg.vpp_app_socket_api)
1380 return vcl_sapi_detach (wrk);
1382 return vcl_bapi_disconnect_from_vpp ();
1386 * VPPCOM Public API functions
1389 vppcom_app_create (const char *app_name)
1391 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1396 VDBG (1, "already initialized");
1397 return VPPCOM_EEXIST;
1401 vppcom_cfg (&vcm->cfg);
1402 vcl_cfg = &vcm->cfg;
1404 vcm->main_cpu = pthread_self ();
1405 vcm->main_pid = getpid ();
1406 vcm->app_name = format (0, "%s", app_name);
1407 fifo_segment_main_init (&vcm->segment_main, (uword) ~0,
1408 20 /* timeout in secs */);
1409 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1410 clib_spinlock_init (&vcm->workers_lock);
1411 clib_rwlock_init (&vcm->segment_table_lock);
1412 atexit (vppcom_app_exit);
1413 vcl_elog_init (vcm);
1415 /* Allocate default worker */
1416 vcl_worker_alloc_and_init ();
1418 if ((rv = vcl_api_attach ()))
1420 vppcom_app_destroy ();
1424 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1425 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1431 vppcom_app_destroy (void)
1433 vcl_worker_t *wrk, *current_wrk;
1436 if (!pool_elts (vcm->workers))
1439 vcl_evt (VCL_EVT_DETACH, vcm);
1441 current_wrk = vcl_worker_get_current ();
1443 pool_foreach (wrk, vcm->workers) {
1444 if (current_wrk != wrk)
1445 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1448 vcl_api_detach (current_wrk);
1449 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1450 vcl_set_worker_index (~0);
1452 vcl_elog_stop (vcm);
1455 * Free the heap and fix vcm
1457 heap = clib_mem_get_heap ();
1458 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1460 vcm = &_vppcom_main;
1465 vppcom_session_create (u8 proto, u8 is_nonblocking)
1467 vcl_worker_t *wrk = vcl_worker_get_current ();
1468 vcl_session_t *session;
1470 session = vcl_session_alloc (wrk);
1472 session->session_type = proto;
1473 session->session_state = VCL_STATE_CLOSED;
1474 session->vpp_handle = ~0;
1475 session->is_dgram = vcl_proto_is_dgram (proto);
1476 session->vpp_error = SESSION_E_NONE;
1479 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1481 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1482 is_nonblocking, session_index);
1484 VDBG (0, "created session %u", session->session_index);
1486 return vcl_session_handle (session);
1490 vcl_epoll_lt_add (vcl_worker_t *wrk, vcl_session_t *s)
1492 vcl_session_t *cur, *prev;
1494 ASSERT (s->vep.lt_next == VCL_INVALID_SESSION_INDEX);
1496 if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX)
1498 wrk->ep_lt_current = s->session_index;
1499 s->vep.lt_next = s->session_index;
1500 s->vep.lt_prev = s->session_index;
1504 cur = vcl_session_get (wrk, wrk->ep_lt_current);
1505 prev = vcl_session_get (wrk, cur->vep.lt_prev);
1507 prev->vep.lt_next = s->session_index;
1508 s->vep.lt_prev = prev->session_index;
1510 s->vep.lt_next = cur->session_index;
1511 cur->vep.lt_prev = s->session_index;
1515 vcl_epoll_lt_del (vcl_worker_t *wrk, vcl_session_t *s)
1517 vcl_session_t *prev, *next;
1519 ASSERT (s->vep.lt_next != VCL_INVALID_SESSION_INDEX);
1521 if (s->vep.lt_next == s->session_index)
1523 wrk->ep_lt_current = VCL_INVALID_SESSION_INDEX;
1524 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1525 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1529 prev = vcl_session_get (wrk, s->vep.lt_prev);
1530 next = vcl_session_get (wrk, s->vep.lt_next);
1532 prev->vep.lt_next = next->session_index;
1533 next->vep.lt_prev = prev->session_index;
1535 if (s->session_index == wrk->ep_lt_current)
1536 wrk->ep_lt_current = s->vep.lt_next;
1538 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
1539 s->vep.lt_prev = VCL_INVALID_SESSION_INDEX;
1543 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1544 vcl_session_handle_t sh, u8 do_disconnect)
1548 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1550 if (s->flags & VCL_SESSION_F_IS_VEP)
1552 u32 next_sh = s->vep.next_sh;
1553 while (next_sh != ~0)
1555 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1556 if (PREDICT_FALSE (rv < 0))
1557 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1558 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1559 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1560 next_sh = s->vep.next_sh;
1565 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1567 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1569 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1570 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1571 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1576 VDBG (1, "session %u [0x%llx] disconnect skipped",
1577 s->session_index, s->vpp_handle);
1581 if (s->session_state == VCL_STATE_LISTEN)
1583 rv = vppcom_session_unbind (sh);
1584 if (PREDICT_FALSE (rv < 0))
1585 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1586 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1587 vppcom_retval_str (rv));
1590 else if (vcl_session_is_ready (s)
1591 || (vcl_session_is_connectable_listener (wrk, s)))
1593 rv = vppcom_session_disconnect (sh);
1594 if (PREDICT_FALSE (rv < 0))
1595 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1596 " rv %d (%s)", s->session_index, s->vpp_handle,
1597 rv, vppcom_retval_str (rv));
1599 else if (s->session_state == VCL_STATE_DISCONNECT)
1601 vcl_send_session_reset_reply (wrk, s, 0);
1603 else if (s->session_state == VCL_STATE_DETACHED)
1605 VDBG (0, "vpp freed session %d before close", s->session_index);
1607 if (!(s->flags & VCL_SESSION_F_PENDING_DISCONNECT))
1610 /* Disconnect/reset messages pending but vpp transport and session
1611 * cleanups already done. Free only after messages drained. */
1612 s->flags |= VCL_SESSION_F_PENDING_FREE;
1615 s->session_state = VCL_STATE_CLOSED;
1617 /* Session is removed only after vpp confirms the disconnect */
1621 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1623 vcl_session_free (wrk, s);
1624 vcl_evt (VCL_EVT_CLOSE, s, rv);
1630 vppcom_session_close (uint32_t session_handle)
1632 vcl_worker_t *wrk = vcl_worker_get_current ();
1633 vcl_session_t *session;
1635 session = vcl_session_get_w_handle (wrk, session_handle);
1637 return VPPCOM_EBADFD;
1638 return vcl_session_cleanup (wrk, session, session_handle,
1639 1 /* do_disconnect */ );
1643 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1645 vcl_worker_t *wrk = vcl_worker_get_current ();
1646 vcl_session_t *session = 0;
1649 return VPPCOM_EINVAL;
1651 session = vcl_session_get_w_handle (wrk, session_handle);
1653 return VPPCOM_EBADFD;
1655 if (session->flags & VCL_SESSION_F_IS_VEP)
1657 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1658 session->session_index);
1659 return VPPCOM_EBADFD;
1662 session->transport.is_ip4 = ep->is_ip4;
1664 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1665 sizeof (ip4_address_t));
1667 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1668 sizeof (ip6_address_t));
1669 session->transport.lcl_port = ep->port;
1672 "session %u handle %u: binding to local %s address %U port %u, "
1674 session->session_index, session_handle,
1675 session->transport.is_ip4 ? "IPv4" : "IPv6", vcl_format_ip46_address,
1676 &session->transport.lcl_ip,
1677 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1678 clib_net_to_host_u16 (session->transport.lcl_port),
1679 vppcom_proto_str (session->session_type));
1680 vcl_evt (VCL_EVT_BIND, session);
1682 if (session->session_type == VPPCOM_PROTO_UDP)
1683 return vppcom_session_listen (session_handle, 10);
1689 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1691 vcl_worker_t *wrk = vcl_worker_get_current ();
1692 vcl_session_t *listen_session = 0;
1693 u64 listen_vpp_handle;
1696 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1697 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1698 return VPPCOM_EBADFD;
1700 listen_vpp_handle = listen_session->vpp_handle;
1701 if (listen_session->session_state == VCL_STATE_LISTEN)
1703 VDBG (0, "session %u [0x%llx]: already in listen state!",
1704 listen_sh, listen_vpp_handle);
1708 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1711 * Send listen request to vpp and wait for reply
1713 vcl_send_session_listen (wrk, listen_session);
1714 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1716 vcm->cfg.session_timeout);
1718 if (PREDICT_FALSE (rv))
1720 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1721 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1722 listen_sh, listen_session->vpp_handle, rv,
1723 vppcom_retval_str (rv));
1731 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1733 if (!strcmp (proto_str, "TCP"))
1734 *proto = VPPCOM_PROTO_TCP;
1735 else if (!strcmp (proto_str, "tcp"))
1736 *proto = VPPCOM_PROTO_TCP;
1737 else if (!strcmp (proto_str, "UDP"))
1738 *proto = VPPCOM_PROTO_UDP;
1739 else if (!strcmp (proto_str, "udp"))
1740 *proto = VPPCOM_PROTO_UDP;
1741 else if (!strcmp (proto_str, "TLS"))
1742 *proto = VPPCOM_PROTO_TLS;
1743 else if (!strcmp (proto_str, "tls"))
1744 *proto = VPPCOM_PROTO_TLS;
1745 else if (!strcmp (proto_str, "QUIC"))
1746 *proto = VPPCOM_PROTO_QUIC;
1747 else if (!strcmp (proto_str, "quic"))
1748 *proto = VPPCOM_PROTO_QUIC;
1749 else if (!strcmp (proto_str, "DTLS"))
1750 *proto = VPPCOM_PROTO_DTLS;
1751 else if (!strcmp (proto_str, "dtls"))
1752 *proto = VPPCOM_PROTO_DTLS;
1753 else if (!strcmp (proto_str, "SRTP"))
1754 *proto = VPPCOM_PROTO_SRTP;
1755 else if (!strcmp (proto_str, "srtp"))
1756 *proto = VPPCOM_PROTO_SRTP;
1763 vppcom_session_accept (uint32_t ls_handle, vppcom_endpt_t *ep, uint32_t flags)
1765 u32 client_session_index = ~0, ls_index, accept_flags = 0;
1766 vcl_worker_t *wrk = vcl_worker_get_current ();
1767 session_accepted_msg_t accepted_msg;
1768 vcl_session_t *ls, *client_session = 0;
1769 vcl_session_msg_t *evt;
1774 ls = vcl_session_get_w_handle (wrk, ls_handle);
1776 return VPPCOM_EBADFD;
1778 if ((ls->session_state != VCL_STATE_LISTEN) &&
1779 (ls->session_state != VCL_STATE_LISTEN_NO_MQ) &&
1780 (!vcl_session_is_connectable_listener (wrk, ls)))
1782 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state (%s)",
1783 ls->vpp_handle, vcl_session_state_str (ls->session_state));
1784 return VPPCOM_EBADFD;
1787 ls_index = ls->session_index;
1789 if (clib_fifo_elts (ls->accept_evts_fifo))
1791 clib_fifo_sub2 (ls->accept_evts_fifo, evt);
1792 accept_flags = evt->flags;
1793 accepted_msg = evt->accepted_msg;
1797 is_nonblocking = vcl_session_has_attr (ls, VCL_SESS_ATTR_NONBLOCK);
1800 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1801 return VPPCOM_EAGAIN;
1803 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1804 vcl_worker_flush_mq_events (wrk);
1810 client_session_index =
1811 vcl_session_accepted_handler (wrk, &accepted_msg, ls_index);
1812 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1813 return VPPCOM_ECONNABORTED;
1815 ls = vcl_session_get (wrk, ls_index);
1816 client_session = vcl_session_get (wrk, client_session_index);
1818 if (flags & O_NONBLOCK)
1819 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1822 "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1823 " flags %d, is_nonblocking %u",
1824 ls->session_index, ls->vpp_handle, client_session_index,
1825 client_session->vpp_handle, flags,
1826 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1830 ep->is_ip4 = client_session->transport.is_ip4;
1831 ep->port = client_session->transport.rmt_port;
1832 if (client_session->transport.is_ip4)
1833 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1834 sizeof (ip4_address_t));
1836 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1837 sizeof (ip6_address_t));
1841 "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1843 ls_handle, ls->vpp_handle, client_session_index,
1844 client_session->vpp_handle, vcl_format_ip46_address,
1845 &client_session->transport.rmt_ip,
1846 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1847 clib_net_to_host_u16 (client_session->transport.rmt_port),
1848 vcl_format_ip46_address, &client_session->transport.lcl_ip,
1849 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1850 clib_net_to_host_u16 (client_session->transport.lcl_port));
1851 vcl_evt (VCL_EVT_ACCEPT, client_session, ls, client_session_index);
1854 * Session might have been closed already
1858 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1859 client_session->session_state = VCL_STATE_VPP_CLOSING;
1860 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1861 client_session->session_state = VCL_STATE_DISCONNECT;
1863 return vcl_session_handle (client_session);
1867 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1869 vcl_worker_t *wrk = vcl_worker_get_current ();
1870 vcl_session_t *session = 0;
1874 session = vcl_session_get_w_handle (wrk, session_handle);
1876 return VPPCOM_EBADFD;
1877 session_index = session->session_index;
1879 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1881 VWRN ("cannot connect epoll session %u!", session->session_index);
1882 return VPPCOM_EBADFD;
1885 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1888 "session %u [0x%llx]: already connected to %U:%d proto %s,"
1890 session->session_index, session->vpp_handle,
1891 vcl_format_ip46_address, &session->transport.rmt_ip,
1892 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1893 clib_net_to_host_u16 (session->transport.rmt_port),
1894 vppcom_proto_str (session->session_type),
1895 vcl_session_state_str (session->session_state));
1899 /* Attempt to connect a connectionless listener */
1900 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1902 if (session->session_type != VPPCOM_PROTO_UDP)
1903 return VPPCOM_EINVAL;
1904 vcl_send_session_unlisten (wrk, session);
1905 session->session_state = VCL_STATE_CLOSED;
1908 session->transport.is_ip4 = server_ep->is_ip4;
1909 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1910 session->transport.rmt_port = server_ep->port;
1911 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1912 session->flags |= VCL_SESSION_F_CONNECTED;
1914 VDBG (0, "session %u: connecting to peer %U:%d proto %s",
1915 session->session_index, vcl_format_ip46_address,
1916 &session->transport.rmt_ip,
1917 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1918 clib_net_to_host_u16 (session->transport.rmt_port),
1919 vppcom_proto_str (session->session_type));
1921 vcl_send_session_connect (wrk, session);
1923 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1925 /* State set to STATE_UPDATED to ensure the session is not assumed
1926 * to be ready and to also allow the app to close it prior to vpp's
1927 * connected reply. */
1928 session->session_state = VCL_STATE_UPDATED;
1929 return VPPCOM_EINPROGRESS;
1933 * Wait for reply from vpp if blocking
1935 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1936 vcm->cfg.session_timeout);
1938 session = vcl_session_get (wrk, session_index);
1939 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1940 session->vpp_handle, rv ? "failed" : "succeeded");
1946 vppcom_session_stream_connect (uint32_t session_handle,
1947 uint32_t parent_session_handle)
1949 vcl_worker_t *wrk = vcl_worker_get_current ();
1950 vcl_session_t *session, *parent_session;
1951 u32 session_index, parent_session_index;
1954 session = vcl_session_get_w_handle (wrk, session_handle);
1956 return VPPCOM_EBADFD;
1957 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1958 if (!parent_session)
1959 return VPPCOM_EBADFD;
1961 session_index = session->session_index;
1962 parent_session_index = parent_session->session_index;
1963 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1965 VDBG (0, "ERROR: cannot connect epoll session %u!",
1966 session->session_index);
1967 return VPPCOM_EBADFD;
1970 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1973 "session handle %u [0x%llx]: session already "
1974 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1975 session_handle, session->vpp_handle, parent_session_handle,
1976 parent_session->vpp_handle,
1977 vppcom_proto_str (session->session_type), session->session_state,
1978 vcl_session_state_str (session->session_state));
1982 /* Connect to quic session specifics */
1983 session->transport.is_ip4 = parent_session->transport.is_ip4;
1984 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1985 session->transport.rmt_port = 0;
1986 session->parent_handle = parent_session->vpp_handle;
1988 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1989 session_handle, parent_session_handle, parent_session->vpp_handle);
1992 * Send connect request and wait for reply from vpp
1994 vcl_send_session_connect (wrk, session);
1995 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1996 vcm->cfg.session_timeout);
1998 session->listener_index = parent_session_index;
1999 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
2001 parent_session->n_accepted_sessions++;
2003 session = vcl_session_get (wrk, session_index);
2004 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
2005 session->vpp_handle, rv ? "failed" : "succeeded");
2011 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
2014 vcl_worker_t *wrk = vcl_worker_get_current ();
2015 int rv, n_read = 0, is_nonblocking;
2016 vcl_session_t *s = 0;
2017 svm_fifo_t *rx_fifo;
2022 if (PREDICT_FALSE (!buf))
2023 return VPPCOM_EFAULT;
2025 s = vcl_session_get_w_handle (wrk, session_handle);
2026 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2027 return VPPCOM_EBADFD;
2029 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2031 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
2032 s->session_index, s->vpp_handle, s->session_state,
2033 vcl_session_state_str (s->session_state));
2034 return vcl_session_closed_error (s);
2037 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
2039 /* Vpp would ack the incoming data and enqueue it for reading.
2040 * So even if SHUT_RD is set, we can still read() the data if
2041 * the session is ready.
2043 if (!vcl_session_read_ready (s))
2049 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2050 is_ct = vcl_session_is_ct (s);
2051 mq = wrk->app_event_queue;
2052 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2053 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2055 if (svm_fifo_is_empty_cons (rx_fifo))
2058 svm_fifo_unset_event (s->rx_fifo);
2059 svm_fifo_unset_event (rx_fifo);
2062 if (vcl_session_is_closing (s))
2063 return vcl_session_closing_error (s);
2064 return VPPCOM_EWOULDBLOCK;
2066 while (svm_fifo_is_empty_cons (rx_fifo))
2068 if (vcl_session_is_closing (s))
2069 return vcl_session_closing_error (s);
2072 svm_fifo_unset_event (s->rx_fifo);
2073 svm_fifo_unset_event (rx_fifo);
2075 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2076 vcl_worker_flush_mq_events (wrk);
2083 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
2085 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
2094 if (svm_fifo_is_empty_cons (rx_fifo))
2097 svm_fifo_unset_event (s->rx_fifo);
2098 svm_fifo_unset_event (rx_fifo);
2099 if (!svm_fifo_is_empty_cons (rx_fifo)
2100 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
2102 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2103 e->event_type = SESSION_IO_EVT_RX;
2104 e->session_index = s->session_index;
2107 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
2109 /* More data enqueued while reading. Try to drain it
2110 * or fill the buffer. Avoid doing that for dgrams */
2116 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
2118 svm_fifo_clear_deq_ntf (rx_fifo);
2119 app_send_io_evt_to_vpp (s->vpp_evt_q,
2120 s->rx_fifo->shr->master_session_index,
2121 SESSION_IO_EVT_RX, SVM_Q_WAIT);
2124 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
2125 s->vpp_handle, n_read, rx_fifo);
2131 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
2133 return (vppcom_session_read_internal (session_handle, buf, n, 0));
2137 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
2139 return (vppcom_session_read_internal (session_handle, buf, n, 1));
2143 vppcom_session_read_segments (uint32_t session_handle,
2144 vppcom_data_segment_t * ds, uint32_t n_segments,
2147 vcl_worker_t *wrk = vcl_worker_get_current ();
2148 int n_read = 0, is_nonblocking;
2149 vcl_session_t *s = 0;
2150 svm_fifo_t *rx_fifo;
2154 s = vcl_session_get_w_handle (wrk, session_handle);
2155 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2156 return VPPCOM_EBADFD;
2158 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2159 return vcl_session_closed_error (s);
2161 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2162 is_ct = vcl_session_is_ct (s);
2163 mq = wrk->app_event_queue;
2164 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2165 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2167 if (svm_fifo_is_empty_cons (rx_fifo))
2170 svm_fifo_unset_event (s->rx_fifo);
2171 svm_fifo_unset_event (rx_fifo);
2174 if (vcl_session_is_closing (s))
2175 return vcl_session_closing_error (s);
2176 return VPPCOM_EWOULDBLOCK;
2178 while (svm_fifo_is_empty_cons (rx_fifo))
2180 if (vcl_session_is_closing (s))
2181 return vcl_session_closing_error (s);
2184 svm_fifo_unset_event (s->rx_fifo);
2185 svm_fifo_unset_event (rx_fifo);
2187 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2188 vcl_worker_flush_mq_events (wrk);
2192 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2193 (svm_fifo_seg_t *) ds, &n_segments, max_bytes);
2195 return VPPCOM_EAGAIN;
2197 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2200 svm_fifo_unset_event (s->rx_fifo);
2201 svm_fifo_unset_event (rx_fifo);
2202 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2203 && svm_fifo_set_event (rx_fifo)
2204 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2207 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2208 e->event_type = SESSION_IO_EVT_RX;
2209 e->session_index = s->session_index;
2213 s->rx_bytes_pending += n_read;
2218 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2220 vcl_worker_t *wrk = vcl_worker_get_current ();
2224 s = vcl_session_get_w_handle (wrk, session_handle);
2225 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2228 is_ct = vcl_session_is_ct (s);
2229 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2231 ASSERT (s->rx_bytes_pending >= n_bytes);
2232 s->rx_bytes_pending -= n_bytes;
2236 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2238 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2240 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2246 vppcom_session_write_inline (vcl_worker_t *wrk, vcl_session_t *s, void *buf,
2247 size_t n, u8 is_flush, u8 is_dgram)
2249 int n_write, is_nonblocking;
2250 session_evt_type_t et;
2251 svm_fifo_t *tx_fifo;
2255 /* Accept zero length writes but just return */
2256 if (PREDICT_FALSE (!n))
2259 if (PREDICT_FALSE (!buf))
2260 return VPPCOM_EFAULT;
2262 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2264 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2265 " session!", s->session_index, s->vpp_handle);
2266 return VPPCOM_EBADFD;
2269 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2271 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2272 s->session_index, s->vpp_handle, s->session_state,
2273 vcl_session_state_str (s->session_state));
2274 return vcl_session_closed_error (s);;
2277 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_WR_SHUTDOWN))
2279 VDBG (1, "session %u [0x%llx]: is shutdown! state 0x%x (%s)",
2280 s->session_index, s->vpp_handle, s->session_state,
2281 vcl_session_state_str (s->session_state));
2282 return VPPCOM_EPIPE;
2285 is_ct = vcl_session_is_ct (s);
2286 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2287 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2289 mq = wrk->app_event_queue;
2290 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2294 return VPPCOM_EWOULDBLOCK;
2296 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2298 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2299 if (vcl_session_is_closing (s))
2300 return vcl_session_closing_error (s);
2302 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2303 vcl_worker_flush_mq_events (wrk);
2307 et = SESSION_IO_EVT_TX;
2308 if (is_flush && !is_ct)
2309 et = SESSION_IO_EVT_TX_FLUSH;
2313 et = vcl_session_dgram_tx_evt (s, et);
2315 app_send_dgram_raw_gso (tx_fifo, &s->transport, s->vpp_evt_q, buf, n,
2316 s->gso_size, et, 0 /* do_evt */, SVM_Q_WAIT);
2320 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2321 0 /* do_evt */, SVM_Q_WAIT);
2324 if (svm_fifo_set_event (s->tx_fifo))
2325 app_send_io_evt_to_vpp (
2326 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2328 /* The underlying fifo segment can run out of memory */
2329 if (PREDICT_FALSE (n_write < 0))
2330 return VPPCOM_EAGAIN;
2332 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2333 s->vpp_handle, n_write);
2339 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2341 vcl_worker_t *wrk = vcl_worker_get_current ();
2344 s = vcl_session_get_w_handle (wrk, session_handle);
2345 if (PREDICT_FALSE (!s))
2346 return VPPCOM_EBADFD;
2348 return vppcom_session_write_inline (wrk, s, buf, n, 0 /* is_flush */,
2349 s->is_dgram ? 1 : 0);
2353 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2355 vcl_worker_t *wrk = vcl_worker_get_current ();
2358 s = vcl_session_get_w_handle (wrk, session_handle);
2359 if (PREDICT_FALSE (!s))
2360 return VPPCOM_EBADFD;
2362 return vppcom_session_write_inline (wrk, s, buf, n, 1 /* is_flush */,
2363 s->is_dgram ? 1 : 0);
2366 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2367 if (PREDICT_FALSE (!_s->rx_fifo)) \
2369 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2371 if (!vcl_session_is_ct (_s)) \
2373 svm_fifo_unset_event (_s->rx_fifo); \
2374 if (svm_fifo_is_empty (_s->rx_fifo)) \
2377 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2379 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2380 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2386 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2387 unsigned long n_bits, unsigned long *read_map,
2388 unsigned long *write_map,
2389 unsigned long *except_map, u32 * bits_set)
2391 session_disconnected_msg_t *disconnected_msg;
2392 session_connected_msg_t *connected_msg;
2396 switch (e->event_type)
2398 case SESSION_IO_EVT_RX:
2399 sid = e->session_index;
2400 s = vcl_session_get (wrk, sid);
2401 if (!s || !vcl_session_is_open (s))
2403 vcl_fifo_rx_evt_valid_or_break (s);
2404 if (sid < n_bits && read_map)
2406 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2410 case SESSION_IO_EVT_TX:
2411 sid = e->session_index;
2412 s = vcl_session_get (wrk, sid);
2413 if (!s || !vcl_session_is_open (s))
2415 if (sid < n_bits && write_map)
2417 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2421 case SESSION_CTRL_EVT_ACCEPTED:
2423 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2425 s = vcl_session_get (wrk, e->session_index);
2428 sid = s->session_index;
2429 if (sid < n_bits && read_map)
2431 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2435 case SESSION_CTRL_EVT_CONNECTED:
2438 connected_msg = (session_connected_msg_t *) e->data;
2439 sid = vcl_session_connected_handler (wrk, connected_msg);
2442 sid = e->session_index;
2443 if (sid == VCL_INVALID_SESSION_INDEX)
2445 if (!(sid < n_bits && write_map))
2447 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2449 s = vcl_session_get (wrk, sid);
2450 /* We didn't have a fifo when the event was added */
2451 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2453 case SESSION_CTRL_EVT_DISCONNECTED:
2456 disconnected_msg = (session_disconnected_msg_t *) e->data;
2457 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2463 s = vcl_session_get (wrk, e->session_index);
2464 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
2466 if (vcl_session_is_closed (s))
2468 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
2469 vcl_session_free (wrk, s);
2472 sid = s->session_index;
2473 if (sid < n_bits && except_map)
2475 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2479 case SESSION_CTRL_EVT_RESET:
2483 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2484 s = vcl_session_get (wrk, sid);
2488 sid = e->session_index;
2489 s = vcl_session_get (wrk, sid);
2490 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
2492 if (vcl_session_is_closed (s))
2494 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
2495 vcl_session_free (wrk, s);
2498 if (sid < n_bits && except_map)
2500 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2504 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2505 vcl_session_unlisten_reply_handler (wrk, e->data);
2507 case SESSION_CTRL_EVT_MIGRATED:
2508 vcl_session_migrated_handler (wrk, e->data);
2510 case SESSION_CTRL_EVT_CLEANUP:
2511 vcl_session_cleanup_handler (wrk, e->data);
2513 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2514 vcl_session_worker_update_reply_handler (wrk, e->data);
2516 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2517 vcl_session_req_worker_update_handler (wrk, e->data);
2519 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2520 vcl_session_app_add_segment_handler (wrk, e->data);
2522 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2523 vcl_session_app_del_segment_handler (wrk, e->data);
2525 case SESSION_CTRL_EVT_APP_WRK_RPC:
2526 vcl_worker_rpc_handler (wrk, e->data);
2529 clib_warning ("unhandled: %u", e->event_type);
2535 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2536 unsigned long n_bits, unsigned long *read_map,
2537 unsigned long *write_map, unsigned long *except_map,
2538 double time_to_wait, u32 * bits_set)
2540 svm_msg_q_msg_t *msg;
2544 if (svm_msg_q_is_empty (mq))
2551 else if (time_to_wait < 0)
2552 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2555 if (svm_msg_q_timedwait (mq, time_to_wait))
2559 vcl_mq_dequeue_batch (wrk, mq, ~0);
2561 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2563 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2564 e = svm_msg_q_msg_data (mq, msg);
2565 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2566 except_map, bits_set);
2567 svm_msg_q_free_msg (mq, msg);
2569 vec_reset_length (wrk->mq_msg_vector);
2570 vcl_handle_pending_wrk_updates (wrk);
2575 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2576 vcl_si_set * read_map, vcl_si_set * write_map,
2577 vcl_si_set * except_map, double time_to_wait,
2580 double wait = 0, start = 0;
2584 wait = time_to_wait;
2585 start = clib_time_now (&wrk->clib_time);
2590 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2591 write_map, except_map, wait, bits_set);
2597 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2605 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2606 vcl_si_set * read_map, vcl_si_set * write_map,
2607 vcl_si_set * except_map, double time_to_wait,
2610 vcl_mq_evt_conn_t *mqc;
2611 int __clib_unused n_read;
2615 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
2617 vcl_api_retry_attach (wrk);
2621 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2622 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2623 vec_len (wrk->mq_events), time_to_wait);
2624 for (i = 0; i < n_mq_evts; i++)
2626 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
2628 vcl_api_handle_disconnect (wrk);
2632 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2633 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2634 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2635 except_map, 0, bits_set);
2638 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2642 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2643 vcl_si_set * except_map, double time_to_wait)
2645 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2646 vcl_worker_t *wrk = vcl_worker_get_current ();
2647 vcl_session_t *s = 0;
2650 if (n_bits && read_map)
2652 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2653 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2654 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2655 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2657 if (n_bits && write_map)
2659 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2660 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2661 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2662 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2664 if (n_bits && except_map)
2666 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2667 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2668 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2669 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2678 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2680 if (!(s = vcl_session_get (wrk, sid)))
2682 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2687 if (vcl_session_write_ready (s))
2689 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2694 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
2702 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2704 if (!(s = vcl_session_get (wrk, sid)))
2706 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2711 if (vcl_session_read_ready (s))
2713 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2720 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2722 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2723 read_map, write_map, except_map, &bits_set);
2725 vec_reset_length (wrk->unhandled_evts_vector);
2727 if (vcm->cfg.use_mq_eventfd)
2728 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2729 time_to_wait, &bits_set);
2731 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2732 time_to_wait, &bits_set);
2738 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2740 vppcom_epoll_t *vep;
2741 u32 sh = vep_handle;
2744 if (VPPCOM_DEBUG <= 3)
2747 s = vcl_session_get_w_handle (wrk, vep_handle);
2748 if (PREDICT_FALSE (!s))
2750 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2753 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2755 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2759 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2762 " is_vep_session = %u\n"
2763 " next_sh = 0x%x (%u)\n"
2764 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2765 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2767 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2769 s = vcl_session_get_w_handle (wrk, sh);
2770 if (PREDICT_FALSE (!s))
2772 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2775 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2777 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2779 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2781 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2785 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2786 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2787 sh, s->vep.vep_sh, vep_handle);
2788 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2790 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2792 " next_sh = 0x%x (%u)\n"
2793 " prev_sh = 0x%x (%u)\n"
2794 " vep_sh = 0x%x (%u)\n"
2795 " ev.events = 0x%x\n"
2796 " ev.data.u64 = 0x%llx\n"
2799 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2800 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2801 vep->ev.data.u64, vep->et_mask);
2806 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2810 vppcom_epoll_create (void)
2812 vcl_worker_t *wrk = vcl_worker_get_current ();
2813 vcl_session_t *vep_session;
2815 vep_session = vcl_session_alloc (wrk);
2817 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2818 vep_session->vep.vep_sh = ~0;
2819 vep_session->vep.next_sh = ~0;
2820 vep_session->vep.prev_sh = ~0;
2821 vep_session->vpp_handle = ~0;
2823 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2824 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2826 return vcl_session_handle (vep_session);
2830 vcl_epoll_ctl_add_unhandled_event (vcl_worker_t *wrk, vcl_session_t *s,
2831 u32 is_epollet, session_evt_type_t evt)
2835 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
2836 vcl_epoll_lt_add (wrk, s);
2840 session_event_t e = { 0 };
2841 e.session_index = s->session_index;
2843 if (evt == SESSION_IO_EVT_RX)
2844 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2845 vec_add1 (wrk->unhandled_evts_vector, e);
2849 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2850 struct epoll_event *event)
2852 vcl_worker_t *wrk = vcl_worker_get_current ();
2853 int rv = VPPCOM_OK, add_evt = 0;
2854 vcl_session_t *vep_session;
2857 if (vep_handle == session_handle)
2859 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2860 return VPPCOM_EINVAL;
2863 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2864 if (PREDICT_FALSE (!vep_session))
2866 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2867 return VPPCOM_EBADFD;
2869 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2871 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2872 return VPPCOM_EINVAL;
2875 ASSERT (vep_session->vep.vep_sh == ~0);
2876 ASSERT (vep_session->vep.prev_sh == ~0);
2878 s = vcl_session_get_w_handle (wrk, session_handle);
2879 if (PREDICT_FALSE (!s))
2881 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2882 return VPPCOM_EBADFD;
2884 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2886 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2887 return VPPCOM_EINVAL;
2893 if (PREDICT_FALSE (!event))
2895 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2896 return VPPCOM_EINVAL;
2898 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2900 VDBG (0, "EPOLL_CTL_ADD: %u already epolled!", s->session_index);
2904 if (vep_session->vep.next_sh != ~0)
2906 vcl_session_t *next_session;
2907 next_session = vcl_session_get_w_handle (wrk,
2908 vep_session->vep.next_sh);
2909 if (PREDICT_FALSE (!next_session))
2911 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2912 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2913 return VPPCOM_EBADFD;
2915 ASSERT (next_session->vep.prev_sh == vep_handle);
2916 next_session->vep.prev_sh = session_handle;
2918 s->vep.next_sh = vep_session->vep.next_sh;
2919 s->vep.prev_sh = vep_handle;
2920 s->vep.vep_sh = vep_handle;
2921 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2922 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
2924 s->vep.ev.events |= EPOLLHUP | EPOLLERR;
2925 s->flags &= ~VCL_SESSION_F_IS_VEP;
2926 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2927 vep_session->vep.next_sh = session_handle;
2929 if ((event->events & EPOLLOUT))
2931 int write_ready = vcl_session_write_ready (s);
2933 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2934 if (write_ready > 0)
2936 /* Generate EPOLLOUT if tx fifo not full */
2937 vcl_epoll_ctl_add_unhandled_event (
2938 wrk, s, event->events & EPOLLET, SESSION_IO_EVT_TX);
2943 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
2946 /* Generate EPOLLIN if rx fifo has data */
2947 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2949 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
2953 if (!add_evt && vcl_session_is_closing (s))
2955 session_event_t e = { 0 };
2956 if (s->session_state == VCL_STATE_VPP_CLOSING)
2957 e.event_type = SESSION_CTRL_EVT_DISCONNECTED;
2959 e.event_type = SESSION_CTRL_EVT_RESET;
2960 e.session_index = s->session_index;
2962 vec_add1 (wrk->unhandled_evts_vector, e);
2964 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2965 vep_handle, session_handle, event->events, event->data.u64);
2966 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2970 if (PREDICT_FALSE (!event))
2972 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2976 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2978 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2982 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2984 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2985 session_handle, s->vep.vep_sh, vep_handle);
2990 /* Generate EPOLLOUT if session write ready and event was not on */
2991 if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT))
2993 /* Fifo size load acq synchronized with update store rel */
2994 int write_ready = vcl_session_write_ready (s);
2996 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2997 if (write_ready > 0)
2998 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
3001 /* Request deq ntf in case dequeue happened while updating flag */
3002 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF);
3004 else if (!(event->events & EPOLLOUT))
3005 vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3007 /* Generate EPOLLIN if session read ready and event was not on */
3008 if ((event->events & EPOLLIN) && !(s->vep.ev.events & EPOLLIN) &&
3009 (vcl_session_read_ready (s) > 0))
3011 vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET,
3014 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
3016 s->vep.ev.events |= EPOLLHUP | EPOLLERR;
3018 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
3019 vep_handle, session_handle, event->events, event->data.u64);
3023 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
3025 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
3029 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
3031 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
3032 session_handle, s->vep.vep_sh, vep_handle);
3037 if (s->vep.prev_sh == vep_handle)
3038 vep_session->vep.next_sh = s->vep.next_sh;
3041 vcl_session_t *prev_session;
3042 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
3043 if (PREDICT_FALSE (!prev_session))
3045 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
3046 s->vep.prev_sh, session_handle);
3047 return VPPCOM_EBADFD;
3049 ASSERT (prev_session->vep.next_sh == session_handle);
3050 prev_session->vep.next_sh = s->vep.next_sh;
3052 if (s->vep.next_sh != ~0)
3054 vcl_session_t *next_session;
3055 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
3056 if (PREDICT_FALSE (!next_session))
3058 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
3059 s->vep.next_sh, session_handle);
3060 return VPPCOM_EBADFD;
3062 ASSERT (next_session->vep.prev_sh == session_handle);
3063 next_session->vep.prev_sh = s->vep.prev_sh;
3066 if (s->vep.lt_next != VCL_INVALID_SESSION_INDEX)
3067 vcl_epoll_lt_del (wrk, s);
3069 memset (&s->vep, 0, sizeof (s->vep));
3070 s->vep.next_sh = ~0;
3071 s->vep.prev_sh = ~0;
3073 s->vep.lt_next = VCL_INVALID_SESSION_INDEX;
3074 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
3076 if (vcl_session_is_open (s))
3077 vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3079 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
3081 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
3085 VDBG (0, "Invalid operation (%d)!", op);
3089 vep_verify_epoll_chain (wrk, vep_handle);
3096 vcl_ep_session_needs_evt (vcl_session_t *s, u32 evt)
3098 /* No event if not epolled / events reset on hup or level-trigger on */
3099 return ((s->vep.ev.events & evt) &&
3100 s->vep.lt_next == VCL_INVALID_SESSION_INDEX);
3104 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
3105 struct epoll_event *events, u32 * num_ev)
3107 session_disconnected_msg_t *disconnected_msg;
3108 session_connected_msg_t *connected_msg;
3109 u32 sid = ~0, session_events;
3110 u64 session_evt_data = ~0;
3114 switch (e->event_type)
3116 case SESSION_IO_EVT_RX:
3117 sid = e->session_index;
3118 s = vcl_session_get (wrk, sid);
3119 if (vcl_session_is_closed (s))
3121 vcl_fifo_rx_evt_valid_or_break (s);
3122 if (!vcl_ep_session_needs_evt (s, EPOLLIN) ||
3123 (s->flags & VCL_SESSION_F_HAS_RX_EVT))
3125 session_events = s->vep.ev.events;
3127 events[*num_ev].events = EPOLLIN;
3128 session_evt_data = s->vep.ev.data.u64;
3129 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
3131 case SESSION_IO_EVT_TX:
3132 sid = e->session_index;
3133 s = vcl_session_get (wrk, sid);
3134 if (!s || !vcl_session_is_open (s))
3136 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ? s->ct_tx_fifo :
3138 if (!vcl_ep_session_needs_evt (s, EPOLLOUT))
3140 session_events = s->vep.ev.events;
3142 events[*num_ev].events = EPOLLOUT;
3143 session_evt_data = s->vep.ev.data.u64;
3145 case SESSION_CTRL_EVT_ACCEPTED:
3147 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
3149 s = vcl_session_get (wrk, e->session_index);
3150 if (!s || !vcl_ep_session_needs_evt (s, EPOLLIN))
3152 sid = s->session_index;
3153 session_events = s->vep.ev.events;
3155 events[*num_ev].events = EPOLLIN;
3156 session_evt_data = s->vep.ev.data.u64;
3158 case SESSION_CTRL_EVT_CONNECTED:
3161 connected_msg = (session_connected_msg_t *) e->data;
3162 sid = vcl_session_connected_handler (wrk, connected_msg);
3165 sid = e->session_index;
3166 s = vcl_session_get (wrk, sid);
3167 if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLOUT))
3169 /* We didn't have a fifo when the event was added */
3170 vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
3172 session_events = s->vep.ev.events;
3173 /* Generate EPOLLOUT because there's no connected event */
3174 events[*num_ev].events = EPOLLOUT;
3175 session_evt_data = s->vep.ev.data.u64;
3176 if (s->session_state == VCL_STATE_DETACHED)
3178 events[*num_ev].events |= EPOLLHUP;
3179 s->vep.ev.events = 0;
3182 case SESSION_CTRL_EVT_DISCONNECTED:
3185 disconnected_msg = (session_disconnected_msg_t *) e->data;
3186 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
3190 s = vcl_session_get (wrk, e->session_index);
3191 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3193 if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLHUP))
3195 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3196 vcl_session_free (wrk, s);
3199 sid = s->session_index;
3200 session_events = s->vep.ev.events;
3202 if (EPOLLRDHUP & session_events)
3204 /* If app can distinguish between RDHUP and HUP,
3205 * we make finer control */
3206 events[*num_ev].events = EPOLLRDHUP;
3207 if (s->flags & VCL_SESSION_F_WR_SHUTDOWN)
3209 events[*num_ev].events |= EPOLLHUP;
3214 events[*num_ev].events = EPOLLHUP;
3216 session_evt_data = s->vep.ev.data.u64;
3217 s->vep.ev.events = 0;
3219 case SESSION_CTRL_EVT_BOUND:
3220 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
3222 case SESSION_CTRL_EVT_RESET:
3226 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
3227 s = vcl_session_get (wrk, sid);
3231 sid = e->session_index;
3232 s = vcl_session_get (wrk, sid);
3233 s->flags &= ~VCL_SESSION_F_PENDING_DISCONNECT;
3235 if (vcl_session_is_closed (s) || !vcl_ep_session_needs_evt (s, EPOLLHUP))
3237 if (s && (s->flags & VCL_SESSION_F_PENDING_FREE))
3238 vcl_session_free (wrk, s);
3241 session_events = s->vep.ev.events;
3243 events[*num_ev].events = EPOLLERR | EPOLLHUP;
3244 if ((EPOLLRDHUP & session_events) &&
3245 (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3247 events[*num_ev].events |= EPOLLRDHUP;
3249 if ((EPOLLIN & session_events) && (s->flags & VCL_SESSION_F_RD_SHUTDOWN))
3251 events[*num_ev].events |= EPOLLIN;
3253 session_evt_data = s->vep.ev.data.u64;
3254 s->vep.ev.events = 0;
3256 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
3257 vcl_session_unlisten_reply_handler (wrk, e->data);
3259 case SESSION_CTRL_EVT_MIGRATED:
3260 vcl_session_migrated_handler (wrk, e->data);
3262 case SESSION_CTRL_EVT_CLEANUP:
3263 vcl_session_cleanup_handler (wrk, e->data);
3265 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
3266 vcl_session_req_worker_update_handler (wrk, e->data);
3268 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
3269 vcl_session_worker_update_reply_handler (wrk, e->data);
3271 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
3272 vcl_session_app_add_segment_handler (wrk, e->data);
3274 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
3275 vcl_session_app_del_segment_handler (wrk, e->data);
3277 case SESSION_CTRL_EVT_APP_WRK_RPC:
3278 vcl_worker_rpc_handler (wrk, e->data);
3281 VDBG (0, "unhandled: %u", e->event_type);
3287 ASSERT (s->flags & VCL_SESSION_F_IS_VEP_SESSION);
3288 events[*num_ev].data.u64 = session_evt_data;
3289 if (EPOLLONESHOT & session_events)
3291 s = vcl_session_get (wrk, sid);
3292 if (!(events[*num_ev].events & EPOLLHUP))
3293 s->vep.ev.events = EPOLLHUP | EPOLLERR;
3295 else if (!(EPOLLET & session_events))
3297 s = vcl_session_get (wrk, sid);
3298 if (s->vep.lt_next == VCL_INVALID_SESSION_INDEX)
3299 vcl_epoll_lt_add (wrk, s);
3306 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
3307 struct epoll_event *events, u32 maxevents,
3308 double wait_for_time, u32 * num_ev)
3310 svm_msg_q_msg_t *msg;
3314 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
3315 goto handle_dequeued;
3317 if (svm_msg_q_is_empty (mq))
3321 else if (wait_for_time < 0)
3322 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
3325 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3329 ASSERT (maxevents > *num_ev);
3330 vcl_mq_dequeue_batch (wrk, mq, ~0);
3333 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3335 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3336 e = svm_msg_q_msg_data (mq, msg);
3337 if (*num_ev < maxevents)
3338 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3340 vcl_handle_mq_event (wrk, e);
3341 svm_msg_q_free_msg (mq, msg);
3343 vec_reset_length (wrk->mq_msg_vector);
3344 vcl_handle_pending_wrk_updates (wrk);
3349 vppcom_epoll_wait_condvar (vcl_worker_t *wrk, struct epoll_event *events,
3350 int maxevents, u32 n_evts, double timeout_ms)
3357 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3362 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3363 timeout_ms, &n_evts);
3364 if (n_evts || !timeout_ms)
3367 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3373 vppcom_epoll_wait_eventfd (vcl_worker_t *wrk, struct epoll_event *events,
3374 int maxevents, u32 n_evts, double timeout_ms)
3376 int __clib_unused n_read;
3377 vcl_mq_evt_conn_t *mqc;
3382 if (PREDICT_FALSE (wrk->api_client_handle == ~0))
3384 vcl_api_retry_attach (wrk);
3388 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3392 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3397 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3398 vec_len (wrk->mq_events), timeout_ms);
3401 VDBG (0, "epoll_wait error %u", errno);
3405 for (i = 0; i < n_mq_evts; i++)
3407 if (PREDICT_FALSE (wrk->mq_events[i].data.u32 == ~0))
3409 /* api socket was closed */
3410 vcl_api_handle_disconnect (wrk);
3414 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3415 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3416 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3420 if (n_evts || !timeout_ms)
3423 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3429 vcl_epoll_wait_handle_lt (vcl_worker_t *wrk, struct epoll_event *events,
3430 int maxevents, u32 *n_evts)
3432 u32 add_event = 0, evt_flags = 0, next, *to_remove = 0, *si;
3437 ASSERT (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX);
3438 if (*n_evts >= maxevents)
3441 next = wrk->ep_lt_current;
3444 s = vcl_session_get (wrk, next);
3445 next = s->vep.lt_next;
3447 if (s->vep.ev.events == 0)
3449 vec_add1 (to_remove, s->session_index);
3452 if ((s->vep.ev.events & EPOLLIN) && (rv = vcl_session_read_ready (s)))
3455 evt_flags |= rv > 0 ? EPOLLIN : EPOLLHUP | EPOLLRDHUP;
3456 evt_data = s->vep.ev.data.u64;
3458 if ((s->vep.ev.events & EPOLLOUT) && (rv = vcl_session_write_ready (s)))
3461 evt_flags |= rv > 0 ? EPOLLOUT : EPOLLHUP | EPOLLRDHUP;
3462 evt_data = s->vep.ev.data.u64;
3464 if (!add_event && s->session_state > VCL_STATE_READY)
3467 evt_flags |= EPOLLHUP | EPOLLRDHUP;
3468 evt_data = s->vep.ev.data.u64;
3472 events[*n_evts].events = evt_flags;
3473 events[*n_evts].data.u64 = evt_data;
3474 if (EPOLLONESHOT & s->vep.ev.events)
3475 s->vep.ev.events = EPOLLHUP | EPOLLERR;
3476 if (evt_flags & EPOLLHUP)
3477 s->vep.ev.events = 0;
3481 if (*n_evts == maxevents)
3483 wrk->ep_lt_current = next;
3489 vec_add1 (to_remove, s->session_index);
3492 while (next != wrk->ep_lt_current);
3494 vec_foreach (si, to_remove)
3496 s = vcl_session_get (wrk, *si);
3497 vcl_epoll_lt_del (wrk, s);
3499 vec_free (to_remove);
3503 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3504 int maxevents, double wait_for_time)
3506 vcl_worker_t *wrk = vcl_worker_get_current ();
3507 vcl_session_t *vep_session;
3511 if (PREDICT_FALSE (maxevents <= 0))
3513 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3514 return VPPCOM_EINVAL;
3517 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3519 return VPPCOM_EBADFD;
3521 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3523 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3524 return VPPCOM_EINVAL;
3527 if (vec_len (wrk->unhandled_evts_vector))
3529 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3531 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3533 if (n_evts == maxevents)
3535 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3539 vec_reset_length (wrk->unhandled_evts_vector);
3542 if (PREDICT_FALSE (wrk->ep_lt_current != VCL_INVALID_SESSION_INDEX))
3543 vcl_epoll_wait_handle_lt (wrk, events, maxevents, &n_evts);
3545 /* Request to only drain unhandled */
3546 if ((int) wait_for_time == -2)
3550 if (vcm->cfg.use_mq_eventfd)
3551 n_evts = vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3554 n_evts = vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3561 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3562 void *buffer, uint32_t * buflen)
3564 vcl_worker_t *wrk = vcl_worker_get_current ();
3565 u32 *flags = buffer;
3566 vppcom_endpt_t *ep = buffer;
3567 transport_endpt_attr_t tea;
3568 vcl_session_t *session;
3571 session = vcl_session_get_w_handle (wrk, session_handle);
3573 return VPPCOM_EBADFD;
3577 case VPPCOM_ATTR_GET_NREAD:
3578 rv = vcl_session_read_ready (session);
3579 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3583 case VPPCOM_ATTR_GET_NWRITE:
3584 rv = vcl_session_write_ready (session);
3585 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3589 case VPPCOM_ATTR_GET_FLAGS:
3590 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3594 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3596 *buflen = sizeof (*flags);
3597 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3598 "is_nonblocking = %u", session_handle, *flags,
3599 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3605 case VPPCOM_ATTR_SET_FLAGS:
3606 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3608 if (*flags & O_NONBLOCK)
3609 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3611 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3613 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3614 " is_nonblocking = %u", session_handle, *flags,
3615 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3621 case VPPCOM_ATTR_GET_PEER_ADDR:
3622 if (PREDICT_TRUE (buffer && buflen &&
3623 (*buflen >= sizeof (*ep)) && ep->ip))
3625 ep->is_ip4 = session->transport.is_ip4;
3626 ep->port = session->transport.rmt_port;
3627 if (session->transport.is_ip4)
3628 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3629 sizeof (ip4_address_t));
3631 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3632 sizeof (ip6_address_t));
3633 *buflen = sizeof (*ep);
3635 "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3636 "addr = %U, port %u",
3637 session_handle, ep->is_ip4, vcl_format_ip46_address,
3638 &session->transport.rmt_ip,
3639 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3640 clib_net_to_host_u16 (ep->port));
3646 case VPPCOM_ATTR_GET_LCL_ADDR:
3647 if (PREDICT_TRUE (buffer && buflen &&
3648 (*buflen >= sizeof (*ep)) && ep->ip))
3650 ep->is_ip4 = session->transport.is_ip4;
3651 ep->port = session->transport.lcl_port;
3652 if (session->transport.is_ip4)
3653 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3654 sizeof (ip4_address_t));
3656 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3657 sizeof (ip6_address_t));
3658 *buflen = sizeof (*ep);
3660 "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3662 session_handle, ep->is_ip4, vcl_format_ip46_address,
3663 &session->transport.lcl_ip,
3664 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3665 clib_net_to_host_u16 (ep->port));
3671 case VPPCOM_ATTR_GET_ORIGINAL_DST:
3672 if (!session->transport.is_ip4)
3674 /* now original dst only support ipv4*/
3675 rv = VPPCOM_EAFNOSUPPORT;
3678 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*ep)) &&
3681 ep->is_ip4 = session->transport.is_ip4;
3682 ep->port = session->original_dst_port;
3683 clib_memcpy_fast (ep->ip, &session->original_dst_ip4,
3684 sizeof (ip4_address_t));
3685 *buflen = sizeof (*ep);
3687 "VPPCOM_ATTR_GET_ORIGINAL_DST: sh %u, is_ip4 = %u, addr = %U"
3689 session_handle, ep->is_ip4, vcl_format_ip4_address,
3690 (ip4_address_t *) (&session->original_dst_ip4),
3691 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3692 clib_net_to_host_u16 (ep->port));
3698 case VPPCOM_ATTR_SET_LCL_ADDR:
3699 if (PREDICT_TRUE (buffer && buflen &&
3700 (*buflen >= sizeof (*ep)) && ep->ip))
3702 session->transport.is_ip4 = ep->is_ip4;
3703 session->transport.lcl_port = ep->port;
3704 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3705 *buflen = sizeof (*ep);
3707 "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3709 session_handle, ep->is_ip4, vcl_format_ip46_address,
3710 &session->transport.lcl_ip,
3711 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3712 clib_net_to_host_u16 (ep->port));
3718 case VPPCOM_ATTR_GET_LIBC_EPFD:
3719 rv = session->libc_epfd;
3720 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3723 case VPPCOM_ATTR_SET_LIBC_EPFD:
3724 if (PREDICT_TRUE (buffer && buflen &&
3725 (*buflen == sizeof (session->libc_epfd))))
3727 session->libc_epfd = *(int *) buffer;
3728 *buflen = sizeof (session->libc_epfd);
3730 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3731 session->libc_epfd, *buflen);
3737 case VPPCOM_ATTR_GET_PROTOCOL:
3738 if (buffer && buflen && (*buflen >= sizeof (int)))
3740 *(int *) buffer = session->session_type;
3741 *buflen = sizeof (int);
3743 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3744 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3750 case VPPCOM_ATTR_GET_LISTEN:
3751 if (buffer && buflen && (*buflen >= sizeof (int)))
3753 *(int *) buffer = vcl_session_has_attr (session,
3754 VCL_SESS_ATTR_LISTEN);
3755 *buflen = sizeof (int);
3757 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3764 case VPPCOM_ATTR_GET_ERROR:
3765 if (buffer && buflen && (*buflen >= sizeof (int)))
3767 *(int *) buffer = 0;
3768 *buflen = sizeof (int);
3770 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3771 *(int *) buffer, *buflen);
3777 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3778 if (buffer && buflen && (*buflen >= sizeof (u32)))
3782 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3784 svm_fifo_size (session->tx_fifo) :
3785 vcm->cfg.tx_fifo_size);
3786 *buflen = sizeof (u32);
3788 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3789 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3796 case VPPCOM_ATTR_SET_DSCP:
3797 if (buffer && buflen && (*buflen >= sizeof (u8)))
3799 session->dscp = *(u8 *) buffer;
3801 VDBG (2, "VPPCOM_ATTR_SET_DSCP: %u (0x%x), buflen %d,",
3802 *(u8 *) buffer, *(u8 *) buffer, *buflen);
3808 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3809 if (buffer && buflen && (*buflen == sizeof (u32)))
3812 session->sndbuf_size = *(u32 *) buffer;
3813 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3814 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3821 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3822 if (buffer && buflen && (*buflen >= sizeof (u32)))
3826 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3828 svm_fifo_size (session->rx_fifo) :
3829 vcm->cfg.rx_fifo_size);
3830 *buflen = sizeof (u32);
3832 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3833 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3839 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3840 if (buffer && buflen && (*buflen == sizeof (u32)))
3843 session->rcvbuf_size = *(u32 *) buffer;
3844 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3845 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3852 case VPPCOM_ATTR_GET_REUSEADDR:
3853 if (buffer && buflen && (*buflen >= sizeof (int)))
3856 *(int *) buffer = vcl_session_has_attr (session,
3857 VCL_SESS_ATTR_REUSEADDR);
3858 *buflen = sizeof (int);
3860 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3861 *(int *) buffer, *buflen);
3867 case VPPCOM_ATTR_SET_REUSEADDR:
3868 if (buffer && buflen && (*buflen == sizeof (int)) &&
3869 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3872 if (*(int *) buffer)
3873 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3875 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3877 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3878 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3885 case VPPCOM_ATTR_GET_REUSEPORT:
3886 if (buffer && buflen && (*buflen >= sizeof (int)))
3889 *(int *) buffer = vcl_session_has_attr (session,
3890 VCL_SESS_ATTR_REUSEPORT);
3891 *buflen = sizeof (int);
3893 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3894 *(int *) buffer, *buflen);
3900 case VPPCOM_ATTR_SET_REUSEPORT:
3901 if (buffer && buflen && (*buflen == sizeof (int)) &&
3902 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3905 if (*(int *) buffer)
3906 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3908 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3910 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3911 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3918 case VPPCOM_ATTR_GET_BROADCAST:
3919 if (buffer && buflen && (*buflen >= sizeof (int)))
3922 *(int *) buffer = vcl_session_has_attr (session,
3923 VCL_SESS_ATTR_BROADCAST);
3924 *buflen = sizeof (int);
3926 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3927 *(int *) buffer, *buflen);
3933 case VPPCOM_ATTR_SET_BROADCAST:
3934 if (buffer && buflen && (*buflen == sizeof (int)))
3937 if (*(int *) buffer)
3938 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3940 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3942 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3943 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3950 case VPPCOM_ATTR_GET_V6ONLY:
3951 if (buffer && buflen && (*buflen >= sizeof (int)))
3954 *(int *) buffer = vcl_session_has_attr (session,
3955 VCL_SESS_ATTR_V6ONLY);
3956 *buflen = sizeof (int);
3958 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3959 *(int *) buffer, *buflen);
3965 case VPPCOM_ATTR_SET_V6ONLY:
3966 if (buffer && buflen && (*buflen == sizeof (int)))
3969 if (*(int *) buffer)
3970 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3972 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3974 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3975 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3982 case VPPCOM_ATTR_GET_KEEPALIVE:
3983 if (buffer && buflen && (*buflen >= sizeof (int)))
3986 *(int *) buffer = vcl_session_has_attr (session,
3987 VCL_SESS_ATTR_KEEPALIVE);
3988 *buflen = sizeof (int);
3990 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3991 *(int *) buffer, *buflen);
3997 case VPPCOM_ATTR_SET_KEEPALIVE:
3998 if (buffer && buflen && (*buflen == sizeof (int)))
4001 if (*(int *) buffer)
4002 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
4004 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
4006 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
4007 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
4014 case VPPCOM_ATTR_GET_TCP_NODELAY:
4015 if (buffer && buflen && (*buflen >= sizeof (int)))
4018 *(int *) buffer = vcl_session_has_attr (session,
4019 VCL_SESS_ATTR_TCP_NODELAY);
4020 *buflen = sizeof (int);
4022 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
4023 *(int *) buffer, *buflen);
4029 case VPPCOM_ATTR_SET_TCP_NODELAY:
4030 if (buffer && buflen && (*buflen == sizeof (int)))
4033 if (*(int *) buffer)
4034 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
4036 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
4038 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
4039 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
4046 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
4047 if (buffer && buflen && (*buflen >= sizeof (int)))
4050 *(int *) buffer = vcl_session_has_attr (session,
4051 VCL_SESS_ATTR_TCP_KEEPIDLE);
4052 *buflen = sizeof (int);
4054 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
4055 *(int *) buffer, *buflen);
4061 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
4062 if (buffer && buflen && (*buflen == sizeof (int)))
4065 if (*(int *) buffer)
4066 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
4068 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
4070 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
4071 vcl_session_has_attr (session,
4072 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
4078 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
4079 if (buffer && buflen && (*buflen >= sizeof (int)))
4082 *(int *) buffer = vcl_session_has_attr (session,
4083 VCL_SESS_ATTR_TCP_KEEPINTVL);
4084 *buflen = sizeof (int);
4086 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
4087 *(int *) buffer, *buflen);
4093 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
4094 if (buffer && buflen && (*buflen == sizeof (int)))
4097 if (*(int *) buffer)
4098 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
4100 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
4102 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
4103 vcl_session_has_attr (session,
4104 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
4110 case VPPCOM_ATTR_GET_TCP_USER_MSS:
4111 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4117 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4118 tea.mss = *(u32 *) buffer;
4119 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
4120 rv = VPPCOM_ENOPROTOOPT;
4124 *(u32 *) buffer = tea.mss;
4125 *buflen = sizeof (int);
4128 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
4131 case VPPCOM_ATTR_SET_TCP_USER_MSS:
4132 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4138 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
4139 tea.mss = *(u32 *) buffer;
4140 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
4141 rv = VPPCOM_ENOPROTOOPT;
4143 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
4147 case VPPCOM_ATTR_SET_CONNECTED:
4148 session->flags |= VCL_SESSION_F_CONNECTED;
4151 case VPPCOM_ATTR_SET_CKPAIR:
4152 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
4153 !vcl_session_has_crypto (session))
4158 if (!session->ext_config)
4160 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_CRYPTO,
4161 sizeof (transport_endpt_ext_cfg_t));
4163 else if (session->ext_config->type != TRANSPORT_ENDPT_EXT_CFG_CRYPTO)
4169 session->ext_config->crypto.ckpair_index = *(uint32_t *) buffer;
4172 case VPPCOM_ATTR_SET_VRF:
4173 if (!(buffer && buflen && (*buflen == sizeof (u32))))
4178 session->vrf = *(u32 *) buffer;
4181 case VPPCOM_ATTR_GET_VRF:
4182 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
4187 *(u32 *) buffer = session->vrf;
4188 *buflen = sizeof (u32);
4191 case VPPCOM_ATTR_GET_DOMAIN:
4192 if (!(buffer && buflen && (*buflen >= sizeof (int))))
4198 if (session->transport.is_ip4)
4199 *(int *) buffer = AF_INET;
4201 *(int *) buffer = AF_INET6;
4202 *buflen = sizeof (int);
4204 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
4208 case VPPCOM_ATTR_SET_ENDPT_EXT_CFG:
4209 if (!(buffer && buflen && (*buflen > 0)))
4214 if (session->ext_config)
4219 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_NONE,
4220 *buflen + sizeof (u32));
4221 clib_memcpy (session->ext_config->data, buffer, *buflen);
4222 session->ext_config->len = *buflen;
4224 case VPPCOM_ATTR_SET_IP_PKTINFO:
4225 if (buffer && buflen && (*buflen == sizeof (int)) &&
4226 !vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO))
4228 if (*(int *) buffer)
4229 vcl_session_set_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4231 vcl_session_clear_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4233 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d",
4234 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO),
4241 case VPPCOM_ATTR_GET_IP_PKTINFO:
4242 if (buffer && buflen && (*buflen >= sizeof (int)))
4245 vcl_session_has_attr (session, VCL_SESS_ATTR_IP_PKTINFO);
4246 *buflen = sizeof (int);
4248 VDBG (2, "VCL_SESS_ATTR_IP_PKTINFO: %d, buflen %d", *(int *) buffer,
4264 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
4265 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4267 vcl_worker_t *wrk = vcl_worker_get_current ();
4268 vcl_session_t *session;
4272 rv = vppcom_session_read (session_handle, buffer, buflen);
4273 else if (flags & MSG_PEEK)
4274 rv = vppcom_session_peek (session_handle, buffer, buflen);
4277 VDBG (0, "Unsupport flags for recvfrom %d", flags);
4278 return VPPCOM_EAFNOSUPPORT;
4283 session = vcl_session_get_w_handle (wrk, session_handle);
4284 if (session->transport.is_ip4)
4285 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
4286 sizeof (ip4_address_t));
4288 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
4289 sizeof (ip6_address_t));
4290 ep->is_ip4 = session->transport.is_ip4;
4291 ep->port = session->transport.rmt_port;
4298 vcl_handle_ep_app_tlvs (vcl_session_t *s, vppcom_endpt_t *ep)
4300 vppcom_endpt_tlv_t *tlv = ep->app_tlvs;
4304 switch (tlv->data_type)
4306 case VCL_UDP_SEGMENT:
4307 s->gso_size = *(u16 *) tlv->data;
4309 case VCL_IP_PKTINFO:
4310 clib_memcpy_fast (&s->transport.lcl_ip, (ip4_address_t *) tlv->data,
4311 sizeof (ip4_address_t));
4314 VDBG (0, "Ignorning unsupported app tlv %u", tlv->data_type);
4317 tlv = VCL_EP_NEXT_APP_TLV (ep, tlv);
4323 vppcom_session_sendto (uint32_t session_handle, void *buffer,
4324 uint32_t buflen, int flags, vppcom_endpt_t * ep)
4326 vcl_worker_t *wrk = vcl_worker_get_current ();
4329 s = vcl_session_get_w_handle (wrk, session_handle);
4330 if (PREDICT_FALSE (!s))
4331 return VPPCOM_EBADFD;
4335 if (!vcl_session_is_cl (s))
4336 return VPPCOM_EINVAL;
4338 s->transport.is_ip4 = ep->is_ip4;
4339 s->transport.rmt_port = ep->port;
4340 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
4343 vcl_handle_ep_app_tlvs (s, ep);
4345 /* Session not connected/bound in vpp. Create it by 'connecting' it */
4346 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
4348 u32 session_index = s->session_index;
4349 f64 timeout = vcm->cfg.session_timeout;
4352 vcl_send_session_connect (wrk, s);
4353 rv = vppcom_wait_for_session_state_change (session_index,
4358 s = vcl_session_get (wrk, session_index);
4364 // TBD check the flags and do the right thing
4365 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
4368 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
4369 s->is_dgram ? 1 : 0));
4373 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
4375 vcl_worker_t *wrk = vcl_worker_get_current ();
4376 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
4377 u32 i, keep_trying = 1;
4378 svm_msg_q_msg_t msg;
4382 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
4385 return VPPCOM_EFAULT;
4389 vcl_session_t *session;
4391 /* Dequeue all events and drop all unhandled io events */
4392 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
4394 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
4395 vcl_handle_mq_event (wrk, e);
4396 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
4398 vec_reset_length (wrk->unhandled_evts_vector);
4400 for (i = 0; i < n_sids; i++)
4402 session = vcl_session_get (wrk, vp[i].sh);
4405 vp[i].revents = POLLHUP;
4412 if (POLLIN & vp[i].events)
4414 rv = vcl_session_read_ready (session);
4417 vp[i].revents |= POLLIN;
4424 case VPPCOM_ECONNRESET:
4425 vp[i].revents = POLLHUP;
4429 vp[i].revents = POLLERR;
4436 if (POLLOUT & vp[i].events)
4438 rv = vcl_session_write_ready (session);
4441 vp[i].revents |= POLLOUT;
4448 case VPPCOM_ECONNRESET:
4449 vp[i].revents = POLLHUP;
4453 vp[i].revents = POLLERR;
4460 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
4462 vp[i].revents = POLLNVAL;
4466 if (wait_for_time != -1)
4467 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
4469 while ((num_ev == 0) && keep_trying);
4475 vppcom_mq_epoll_fd (void)
4477 vcl_worker_t *wrk = vcl_worker_get_current ();
4478 return wrk->mqs_epfd;
4482 vppcom_session_index (vcl_session_handle_t session_handle)
4484 return session_handle & 0xFFFFFF;
4488 vppcom_session_worker (vcl_session_handle_t session_handle)
4490 return session_handle >> 24;
4494 vppcom_worker_register (void)
4496 if (!vcl_worker_alloc_and_init ())
4497 return VPPCOM_EEXIST;
4499 if (vcl_worker_register_with_vpp ())
4500 return VPPCOM_EEXIST;
4506 vppcom_worker_unregister (void)
4508 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
4509 vcl_set_worker_index (~0);
4513 vppcom_worker_index_set (int index)
4515 vcl_set_worker_index (index);
4519 vppcom_worker_index (void)
4521 return vcl_get_worker_index ();
4525 vppcom_worker_mqs_epfd (void)
4527 vcl_worker_t *wrk = vcl_worker_get_current ();
4528 if (!vcm->cfg.use_mq_eventfd)
4530 return wrk->mqs_epfd;
4534 vppcom_session_is_connectable_listener (uint32_t session_handle)
4536 vcl_session_t *session;
4537 vcl_worker_t *wrk = vcl_worker_get_current ();
4538 session = vcl_session_get_w_handle (wrk, session_handle);
4540 return VPPCOM_EBADFD;
4541 return vcl_session_is_connectable_listener (wrk, session);
4545 vppcom_session_listener (uint32_t session_handle)
4547 vcl_worker_t *wrk = vcl_worker_get_current ();
4548 vcl_session_t *listen_session, *session;
4549 session = vcl_session_get_w_handle (wrk, session_handle);
4551 return VPPCOM_EBADFD;
4552 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
4553 return VPPCOM_EBADFD;
4554 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4555 if (!listen_session)
4556 return VPPCOM_EBADFD;
4557 return vcl_session_handle (listen_session);
4561 vppcom_session_n_accepted (uint32_t session_handle)
4563 vcl_worker_t *wrk = vcl_worker_get_current ();
4564 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4566 return VPPCOM_EBADFD;
4567 return session->n_accepted_sessions;
4571 vppcom_proto_str (vppcom_proto_t proto)
4573 char const *proto_str;
4577 case VPPCOM_PROTO_TCP:
4580 case VPPCOM_PROTO_UDP:
4583 case VPPCOM_PROTO_TLS:
4586 case VPPCOM_PROTO_QUIC:
4589 case VPPCOM_PROTO_DTLS:
4592 case VPPCOM_PROTO_SRTP:
4596 proto_str = "UNKNOWN";
4603 vppcom_retval_str (int retval)
4614 st = "VPPCOM_EAGAIN";
4618 st = "VPPCOM_EFAULT";
4622 st = "VPPCOM_ENOMEM";
4626 st = "VPPCOM_EINVAL";
4630 st = "VPPCOM_EBADFD";
4633 case VPPCOM_EAFNOSUPPORT:
4634 st = "VPPCOM_EAFNOSUPPORT";
4637 case VPPCOM_ECONNABORTED:
4638 st = "VPPCOM_ECONNABORTED";
4641 case VPPCOM_ECONNRESET:
4642 st = "VPPCOM_ECONNRESET";
4645 case VPPCOM_ENOTCONN:
4646 st = "VPPCOM_ENOTCONN";
4649 case VPPCOM_ECONNREFUSED:
4650 st = "VPPCOM_ECONNREFUSED";
4653 case VPPCOM_ETIMEDOUT:
4654 st = "VPPCOM_ETIMEDOUT";
4657 case VPPCOM_EADDRINUSE:
4658 st = "VPPCOM_EADDRINUSE";
4662 st = "UNKNOWN_STATE";
4670 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4672 if (vcm->cfg.vpp_app_socket_api)
4673 return vcl_sapi_add_cert_key_pair (ckpair);
4675 return vcl_bapi_add_cert_key_pair (ckpair);
4679 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4681 if (vcm->cfg.vpp_app_socket_api)
4682 return vcl_sapi_del_cert_key_pair (ckpair_index);
4684 return vcl_bapi_del_cert_key_pair (ckpair_index);
4688 vppcom_session_get_error (uint32_t session_handle)
4690 vcl_worker_t *wrk = vcl_worker_get_current ();
4691 vcl_session_t *session = 0;
4693 session = vcl_session_get_w_handle (wrk, session_handle);
4695 return VPPCOM_EBADFD;
4697 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
4699 VWRN ("epoll session %u! will not have connect", session->session_index);
4700 return VPPCOM_EBADFD;
4703 if (session->vpp_error == SESSION_E_PORTINUSE)
4704 return VPPCOM_EADDRINUSE;
4705 else if (session->vpp_error == SESSION_E_REFUSED)
4706 return VPPCOM_ECONNREFUSED;
4707 else if (session->vpp_error != SESSION_E_NONE)
4708 return VPPCOM_EFAULT;
4714 vppcom_worker_is_detached (void)
4716 vcl_worker_t *wrk = vcl_worker_get_current ();
4718 if (!vcm->cfg.use_mq_eventfd)
4719 return VPPCOM_ENOTSUP;
4721 return wrk->api_client_handle == ~0;
4725 * fd.io coding-style-patch-verification: ON
4728 * eval: (c-set-style "gnu")