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);
41 vppcom_session_state_str (vcl_session_state_t state)
47 case VCL_STATE_CLOSED:
50 case VCL_STATE_LISTEN:
56 case VCL_STATE_VPP_CLOSING:
57 st = "STATE_VPP_CLOSING";
59 case VCL_STATE_DISCONNECT:
60 st = "STATE_DISCONNECT";
62 case VCL_STATE_DETACHED:
63 st = "STATE_DETACHED";
65 case VCL_STATE_UPDATED:
68 case VCL_STATE_LISTEN_NO_MQ:
69 st = "STATE_LISTEN_NO_MQ";
80 format_ip4_address (u8 * s, va_list * args)
82 u8 *a = va_arg (*args, u8 *);
83 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
87 format_ip6_address (u8 * s, va_list * args)
89 ip6_address_t *a = va_arg (*args, ip6_address_t *);
90 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
92 i_max_n_zero = ARRAY_LEN (a->as_u16);
94 i_first_zero = i_max_n_zero;
96 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
98 u32 is_zero = a->as_u16[i] == 0;
99 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
105 if ((!is_zero && n_zeros > max_n_zeros)
106 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
108 i_max_n_zero = i_first_zero;
109 max_n_zeros = n_zeros;
110 i_first_zero = ARRAY_LEN (a->as_u16);
115 last_double_colon = 0;
116 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
118 if (i == i_max_n_zero && max_n_zeros > 1)
120 s = format (s, "::");
121 i += max_n_zeros - 1;
122 last_double_colon = 1;
126 s = format (s, "%s%x",
127 (last_double_colon || i == 0) ? "" : ":",
128 clib_net_to_host_u16 (a->as_u16[i]));
129 last_double_colon = 0;
136 /* Format an IP46 address. */
138 format_ip46_address (u8 * s, va_list * args)
140 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
141 ip46_type_t type = va_arg (*args, ip46_type_t);
147 is_ip4 = ip46_address_is_ip4 (ip46);
158 format (s, "%U", format_ip4_address, &ip46->ip4) :
159 format (s, "%U", format_ip6_address, &ip46->ip6);
163 * VPPCOM Utility Functions
167 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
169 app_session_evt_t _app_evt, *app_evt = &_app_evt;
170 session_listen_msg_t *mp;
173 mq = vcl_worker_ctrl_mq (wrk);
174 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
175 mp = (session_listen_msg_t *) app_evt->evt->data;
176 memset (mp, 0, sizeof (*mp));
177 mp->client_index = wrk->api_client_handle;
178 mp->context = s->session_index;
179 mp->wrk_index = wrk->vpp_wrk_index;
180 mp->is_ip4 = s->transport.is_ip4;
181 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
182 mp->port = s->transport.lcl_port;
183 mp->proto = s->session_type;
184 mp->ckpair_index = s->ckpair_index;
186 if (s->flags & VCL_SESSION_F_CONNECTED)
187 mp->flags = TRANSPORT_CFG_F_CONNECTED;
188 app_send_ctrl_evt_to_vpp (mq, app_evt);
192 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
194 app_session_evt_t _app_evt, *app_evt = &_app_evt;
195 session_connect_msg_t *mp;
198 mq = vcl_worker_ctrl_mq (wrk);
199 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
200 mp = (session_connect_msg_t *) app_evt->evt->data;
201 memset (mp, 0, sizeof (*mp));
202 mp->client_index = wrk->api_client_handle;
203 mp->context = s->session_index;
204 mp->wrk_index = wrk->vpp_wrk_index;
205 mp->is_ip4 = s->transport.is_ip4;
206 mp->parent_handle = s->parent_handle;
207 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
208 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
209 mp->port = s->transport.rmt_port;
210 mp->lcl_port = s->transport.lcl_port;
211 mp->proto = s->session_type;
212 mp->ckpair_index = s->ckpair_index;
214 if (s->flags & VCL_SESSION_F_CONNECTED)
215 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
216 app_send_ctrl_evt_to_vpp (mq, app_evt);
220 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
222 app_session_evt_t _app_evt, *app_evt = &_app_evt;
223 session_unlisten_msg_t *mp;
226 mq = vcl_worker_ctrl_mq (wrk);
227 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
228 mp = (session_unlisten_msg_t *) app_evt->evt->data;
229 memset (mp, 0, sizeof (*mp));
230 mp->client_index = wrk->api_client_handle;
231 mp->wrk_index = wrk->vpp_wrk_index;
232 mp->handle = s->vpp_handle;
233 mp->context = wrk->wrk_index;
234 app_send_ctrl_evt_to_vpp (mq, app_evt);
238 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
240 app_session_evt_t _app_evt, *app_evt = &_app_evt;
241 session_disconnect_msg_t *mp;
244 /* Send to thread that owns the session */
246 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
247 mp = (session_disconnect_msg_t *) app_evt->evt->data;
248 memset (mp, 0, sizeof (*mp));
249 mp->client_index = wrk->api_client_handle;
250 mp->handle = s->vpp_handle;
251 app_send_ctrl_evt_to_vpp (mq, app_evt);
255 vcl_send_app_detach (vcl_worker_t * wrk)
257 app_session_evt_t _app_evt, *app_evt = &_app_evt;
258 session_app_detach_msg_t *mp;
261 mq = vcl_worker_ctrl_mq (wrk);
262 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
263 mp = (session_app_detach_msg_t *) app_evt->evt->data;
264 memset (mp, 0, sizeof (*mp));
265 mp->client_index = wrk->api_client_handle;
266 app_send_ctrl_evt_to_vpp (mq, app_evt);
270 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
271 session_handle_t handle, int retval)
273 app_session_evt_t _app_evt, *app_evt = &_app_evt;
274 session_accepted_reply_msg_t *rmp;
275 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
276 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
277 rmp->handle = handle;
278 rmp->context = context;
279 rmp->retval = retval;
280 app_send_ctrl_evt_to_vpp (mq, app_evt);
284 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
287 app_session_evt_t _app_evt, *app_evt = &_app_evt;
288 session_disconnected_reply_msg_t *rmp;
289 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
290 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
291 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
292 rmp->handle = s->vpp_handle;
293 rmp->context = wrk->api_client_handle;
294 rmp->retval = retval;
295 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
299 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
302 app_session_evt_t _app_evt, *app_evt = &_app_evt;
303 session_reset_reply_msg_t *rmp;
304 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
305 SESSION_CTRL_EVT_RESET_REPLY);
306 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
307 rmp->handle = s->vpp_handle;
308 rmp->context = wrk->api_client_handle;
309 rmp->retval = retval;
310 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
314 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
317 app_session_evt_t _app_evt, *app_evt = &_app_evt;
318 session_worker_update_msg_t *mp;
320 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
321 SESSION_CTRL_EVT_WORKER_UPDATE);
322 mp = (session_worker_update_msg_t *) app_evt->evt->data;
323 mp->client_index = wrk->api_client_handle;
324 mp->handle = s->vpp_handle;
325 mp->req_wrk_index = wrk->vpp_wrk_index;
326 mp->wrk_index = wrk_index;
327 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
331 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
333 app_session_evt_t _app_evt, *app_evt = &_app_evt;
334 session_app_wrk_rpc_msg_t *mp;
335 vcl_worker_t *dst_wrk, *wrk;
339 if (data_len > sizeof (mp->data))
342 clib_spinlock_lock (&vcm->workers_lock);
344 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
348 wrk = vcl_worker_get_current ();
349 mq = vcl_worker_ctrl_mq (wrk);
350 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
351 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
352 mp->client_index = wrk->api_client_handle;
353 mp->wrk_index = dst_wrk->vpp_wrk_index;
354 clib_memcpy (mp->data, data, data_len);
355 app_send_ctrl_evt_to_vpp (mq, app_evt);
359 clib_spinlock_unlock (&vcm->workers_lock);
364 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
367 vcl_session_t *session, *listen_session;
370 session = vcl_session_alloc (wrk);
372 listen_session = vcl_session_get (wrk, ls_index);
373 if (listen_session->vpp_handle != mp->listener_handle)
375 VDBG (0, "ERROR: listener handle %lu does not match session %u",
376 mp->listener_handle, ls_index);
380 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
382 mp->vpp_event_queue_address, 0, session))
384 VDBG (0, "failed to attach fifos for %u", session->session_index);
388 session->vpp_handle = mp->handle;
389 session->session_state = VCL_STATE_READY;
390 session->transport.rmt_port = mp->rmt.port;
391 session->transport.is_ip4 = mp->rmt.is_ip4;
392 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
393 sizeof (ip46_address_t));
395 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
396 session->transport.lcl_port = listen_session->transport.lcl_port;
397 session->transport.lcl_ip = listen_session->transport.lcl_ip;
398 session->session_type = listen_session->session_type;
399 session->is_dgram = vcl_proto_is_dgram (session->session_type);
400 session->listener_index = listen_session->session_index;
401 listen_session->n_accepted_sessions++;
403 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
404 " port %d queue %p!", session->session_index, mp->handle,
405 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
406 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
407 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
408 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
410 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
411 session->vpp_handle, 0);
413 return session->session_index;
416 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
417 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
418 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
419 VNET_API_ERROR_INVALID_ARGUMENT);
420 vcl_session_free (wrk, session);
421 return VCL_INVALID_SESSION_INDEX;
425 vcl_session_connected_handler (vcl_worker_t * wrk,
426 session_connected_msg_t * mp)
428 vcl_session_t *session = 0;
431 session_index = mp->context;
432 session = vcl_session_get (wrk, session_index);
435 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
436 mp->handle, session_index);
437 return VCL_INVALID_SESSION_INDEX;
441 VDBG (0, "ERROR: session index %u: connect failed! %U",
442 session_index, format_session_error, mp->retval);
443 session->session_state = VCL_STATE_DETACHED;
444 session->vpp_handle = mp->handle;
445 return session_index;
448 session->vpp_handle = mp->handle;
450 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
452 mp->vpp_event_queue_address, 0, session))
454 VDBG (0, "failed to attach fifos for %u", session->session_index);
455 session->session_state = VCL_STATE_DETACHED;
456 vcl_send_session_disconnect (wrk, session);
457 return session_index;
462 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
463 mp->ct_tx_fifo, (uword) ~0, 1, session))
465 VDBG (0, "failed to attach ct fifos for %u", session->session_index);
466 session->session_state = VCL_STATE_DETACHED;
467 vcl_send_session_disconnect (wrk, session);
468 return session_index;
472 session->transport.is_ip4 = mp->lcl.is_ip4;
473 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
474 sizeof (session->transport.lcl_ip));
475 session->transport.lcl_port = mp->lcl.port;
477 /* Application closed session before connect reply */
478 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
479 && session->session_state == VCL_STATE_CLOSED)
480 vcl_send_session_disconnect (wrk, session);
482 session->session_state = VCL_STATE_READY;
484 /* Add it to lookup table */
485 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
487 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
488 " refcnt %d", session_index, mp->handle, session->rx_fifo,
489 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
491 return session_index;
495 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
497 vcl_session_msg_t *accepted_msg;
500 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
502 accepted_msg = &session->accept_evts_fifo[i];
503 if (accepted_msg->accepted_msg.handle == handle)
505 accepted_msg->flags |= flags;
513 vcl_session_reset_handler (vcl_worker_t * wrk,
514 session_reset_msg_t * reset_msg)
516 vcl_session_t *session;
519 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
520 session = vcl_session_get (wrk, sid);
523 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
524 return VCL_INVALID_SESSION_INDEX;
527 /* Caught a reset before actually accepting the session */
528 if (session->session_state == VCL_STATE_LISTEN)
531 if (!vcl_flag_accepted_session (session, reset_msg->handle,
532 VCL_ACCEPTED_F_RESET))
533 VDBG (0, "session was not accepted!");
534 return VCL_INVALID_SESSION_INDEX;
537 if (session->session_state != VCL_STATE_CLOSED)
538 session->session_state = VCL_STATE_DISCONNECT;
539 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
544 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
546 vcl_session_t *session;
547 u32 sid = mp->context;
549 session = vcl_session_get (wrk, sid);
552 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
553 format_session_error, mp->retval);
556 session->session_state = VCL_STATE_DETACHED;
557 session->vpp_handle = mp->handle;
562 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
564 return VCL_INVALID_SESSION_INDEX;
568 session->vpp_handle = mp->handle;
569 session->transport.is_ip4 = mp->lcl_is_ip4;
570 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
571 sizeof (ip46_address_t));
572 session->transport.lcl_port = mp->lcl_port;
573 vcl_session_table_add_listener (wrk, mp->handle, sid);
574 session->session_state = VCL_STATE_LISTEN;
576 if (vcl_session_is_cl (session))
578 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
579 mp->tx_fifo, mp->vpp_evt_q, 0, session))
581 VDBG (0, "failed to attach fifos for %u", session->session_index);
582 session->session_state = VCL_STATE_DETACHED;
583 return VCL_INVALID_SESSION_INDEX;
587 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
592 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
594 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
597 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
600 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
603 if (s->session_state != VCL_STATE_DISCONNECT)
605 /* Connected udp listener */
606 if (s->session_type == VPPCOM_PROTO_UDP
607 && s->session_state == VCL_STATE_CLOSED)
610 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
615 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
616 s->session_index, mp->handle, format_session_error, mp->retval);
618 if (mp->context != wrk->wrk_index)
619 VDBG (0, "wrong context");
621 vcl_session_table_del_vpp_handle (wrk, mp->handle);
622 vcl_session_free (wrk, s);
626 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
628 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
632 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
635 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
639 fs_index = vcl_segment_table_lookup (mp->segment_handle);
640 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
642 VDBG (0, "segment for session %u is not mounted!", s->session_index);
643 s->session_state = VCL_STATE_DETACHED;
647 s->vpp_handle = mp->new_handle;
649 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
650 mp->vpp_thread_index, &s->vpp_evt_q);
652 vcl_session_table_del_vpp_handle (wrk, mp->handle);
653 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
655 /* Generate new tx event if we have outstanding data */
656 if (svm_fifo_has_event (s->tx_fifo))
657 app_send_io_evt_to_vpp (s->vpp_evt_q,
658 s->tx_fifo->shr->master_session_index,
659 SESSION_IO_EVT_TX, SVM_Q_WAIT);
661 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
662 mp->vpp_thread_index, mp->new_handle);
665 static vcl_session_t *
666 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
668 vcl_session_msg_t *vcl_msg;
669 vcl_session_t *session;
671 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
672 if (PREDICT_FALSE (session != 0))
673 VWRN ("session overlap handle %lu state %u!", msg->handle,
674 session->session_state);
676 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
679 VERR ("couldn't find listen session: listener handle %llx",
680 msg->listener_handle);
684 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
686 vcl_msg->accepted_msg = *msg;
687 /* Session handle points to listener until fully accepted by app */
688 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
693 static vcl_session_t *
694 vcl_session_disconnected_handler (vcl_worker_t * wrk,
695 session_disconnected_msg_t * msg)
697 vcl_session_t *session;
699 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
702 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
706 /* Late disconnect notification on a session that has been closed */
707 if (session->session_state == VCL_STATE_CLOSED)
710 /* Caught a disconnect before actually accepting the session */
711 if (session->session_state == VCL_STATE_LISTEN)
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_disconnect (u32 session_handle)
729 vcl_worker_t *wrk = vcl_worker_get_current ();
730 vcl_session_t *session, *listen_session;
731 vcl_session_state_t state;
734 session = vcl_session_get_w_handle (wrk, session_handle);
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, vppcom_session_state_str (state));
744 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
746 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
747 return VPPCOM_EBADFD;
750 if (state == VCL_STATE_VPP_CLOSING)
752 vcl_send_session_disconnected_reply (wrk, session, 0);
753 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
754 session->session_index, vpp_handle);
758 /* Session doesn't have an event queue yet. Probably a non-blocking
759 * connect. Wait for the reply */
760 if (PREDICT_FALSE (!session->vpp_evt_q))
763 VDBG (1, "session %u [0x%llx]: sending disconnect...",
764 session->session_index, vpp_handle);
765 vcl_send_session_disconnect (wrk, session);
768 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
770 listen_session = vcl_session_get (wrk, session->listener_index);
771 listen_session->n_accepted_sessions--;
778 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
780 session_cleanup_msg_t *msg;
781 vcl_session_t *session;
783 msg = (session_cleanup_msg_t *) data;
784 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
787 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
791 if (msg->type == SESSION_CLEANUP_TRANSPORT)
793 /* Transport was cleaned up before we confirmed close. Probably the
794 * app is still waiting for some data that cannot be delivered.
795 * Confirm close to make sure everything is cleaned up.
796 * Move to undetermined state to ensure that the session is not
797 * removed before both vpp and the app cleanup.
798 * - If the app closes first, the session is moved to CLOSED state
799 * and the session cleanup notification from vpp removes the
801 * - If vpp cleans up the session first, the session is moved to
802 * DETACHED state lower and subsequently the close from the app
805 if (session->session_state == VCL_STATE_VPP_CLOSING)
807 vppcom_session_disconnect (vcl_session_handle (session));
808 session->session_state = VCL_STATE_UPDATED;
810 else if (session->session_state == VCL_STATE_DISCONNECT)
812 vcl_send_session_reset_reply (wrk, session, 0);
813 session->session_state = VCL_STATE_UPDATED;
818 vcl_session_table_del_vpp_handle (wrk, msg->handle);
819 /* Should not happen. App did not close the connection so don't free it. */
820 if (session->session_state != VCL_STATE_CLOSED)
822 VDBG (0, "app did not close session %d", session->session_index);
823 session->session_state = VCL_STATE_DETACHED;
824 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
827 vcl_session_free (wrk, session);
831 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
833 session_req_worker_update_msg_t *msg;
836 msg = (session_req_worker_update_msg_t *) data;
837 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
841 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
845 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
847 session_worker_update_reply_msg_t *msg;
850 msg = (session_worker_update_reply_msg_t *) data;
851 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
854 VDBG (0, "unknown handle 0x%llx", msg->handle);
860 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
861 msg->tx_fifo, (uword) ~0, 0, s))
863 VDBG (0, "failed to attach fifos for %u", s->session_index);
867 s->session_state = VCL_STATE_UPDATED;
869 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
870 s->vpp_handle, wrk->wrk_index);
874 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
877 if (vcm->cfg.vpp_app_socket_api)
878 return vcl_sapi_recv_fds (wrk, fds, n_fds);
880 return vcl_bapi_recv_fds (wrk, fds, n_fds);
884 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
886 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
887 session_app_add_segment_msg_t *msg;
891 msg = (session_app_add_segment_msg_t *) data;
895 vcl_api_recv_fd (wrk, &fd, 1);
896 seg_type = SSVM_SEGMENT_MEMFD;
899 segment_handle = msg->segment_handle;
900 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
902 clib_warning ("invalid segment handle");
906 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
909 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
913 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
918 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
920 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
921 vcl_segment_detach (msg->segment_handle);
922 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
926 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
928 if (!vcm->wrk_rpc_fn)
931 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
935 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
937 session_disconnected_msg_t *disconnected_msg;
938 session_connected_msg_t *connected_msg;
939 session_reset_msg_t *reset_msg;
940 session_event_t *ecpy;
944 switch (e->event_type)
946 case SESSION_IO_EVT_RX:
947 case SESSION_IO_EVT_TX:
948 s = vcl_session_get (wrk, e->session_index);
949 if (!s || !vcl_session_is_open (s))
951 vec_add1 (wrk->unhandled_evts_vector, *e);
953 case SESSION_CTRL_EVT_BOUND:
954 /* We can only wait for only one listen so not postponed */
955 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
957 case SESSION_CTRL_EVT_ACCEPTED:
958 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
959 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
961 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
964 ecpy->session_index = s->session_index;
967 case SESSION_CTRL_EVT_CONNECTED:
968 connected_msg = (session_connected_msg_t *) e->data;
969 sid = vcl_session_connected_handler (wrk, connected_msg);
970 if (!(s = vcl_session_get (wrk, sid)))
972 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
974 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
977 ecpy->session_index = s->session_index;
980 case SESSION_CTRL_EVT_DISCONNECTED:
981 disconnected_msg = (session_disconnected_msg_t *) e->data;
982 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
984 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
986 vec_add1 (wrk->unhandled_evts_vector, *e);
989 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
991 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
994 case SESSION_CTRL_EVT_RESET:
995 reset_msg = (session_reset_msg_t *) e->data;
996 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
998 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1000 vec_add1 (wrk->unhandled_evts_vector, *e);
1003 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1005 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1006 vcl_session_unlisten_reply_handler (wrk, e->data);
1008 case SESSION_CTRL_EVT_MIGRATED:
1009 vcl_session_migrated_handler (wrk, e->data);
1011 case SESSION_CTRL_EVT_CLEANUP:
1012 vcl_session_cleanup_handler (wrk, e->data);
1014 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1015 vcl_session_req_worker_update_handler (wrk, e->data);
1017 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1018 vcl_session_worker_update_reply_handler (wrk, e->data);
1020 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1021 vcl_session_app_add_segment_handler (wrk, e->data);
1023 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1024 vcl_session_app_del_segment_handler (wrk, e->data);
1026 case SESSION_CTRL_EVT_APP_WRK_RPC:
1027 vcl_worker_rpc_handler (wrk, e->data);
1030 clib_warning ("unhandled %u", e->event_type);
1036 vppcom_wait_for_session_state_change (u32 session_index,
1037 vcl_session_state_t state,
1040 vcl_worker_t *wrk = vcl_worker_get_current ();
1041 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1042 vcl_session_t *volatile session;
1043 svm_msg_q_msg_t msg;
1048 session = vcl_session_get (wrk, session_index);
1049 if (PREDICT_FALSE (!session))
1051 return VPPCOM_EBADFD;
1053 if (session->session_state == state)
1057 if (session->session_state == VCL_STATE_DETACHED)
1059 return VPPCOM_ECONNREFUSED;
1062 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1067 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1068 vcl_handle_mq_event (wrk, e);
1069 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1071 while (clib_time_now (&wrk->clib_time) < timeout);
1073 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1074 vppcom_session_state_str (state));
1075 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1077 return VPPCOM_ETIMEDOUT;
1081 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1083 vcl_session_state_t state;
1087 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1090 vec_foreach (sip, wrk->pending_session_wrk_updates)
1092 s = vcl_session_get (wrk, *sip);
1093 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1094 state = s->session_state;
1095 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1097 s->session_state = state;
1099 vec_reset_length (wrk->pending_session_wrk_updates);
1103 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1105 svm_msg_q_msg_t *msg;
1110 mq = wrk->app_event_queue;
1111 vcl_mq_dequeue_batch (wrk, mq, ~0);
1113 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1115 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1116 e = svm_msg_q_msg_data (mq, msg);
1117 vcl_handle_mq_event (wrk, e);
1118 svm_msg_q_free_msg (mq, msg);
1120 vec_reset_length (wrk->mq_msg_vector);
1121 vcl_handle_pending_wrk_updates (wrk);
1125 vcl_flush_mq_events (void)
1127 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1131 vppcom_session_unbind (u32 session_handle)
1133 vcl_worker_t *wrk = vcl_worker_get_current ();
1134 session_accepted_msg_t *accepted_msg;
1135 vcl_session_t *session = 0;
1136 vcl_session_msg_t *evt;
1138 session = vcl_session_get_w_handle (wrk, session_handle);
1140 return VPPCOM_EBADFD;
1142 /* Flush pending accept events, if any */
1143 while (clib_fifo_elts (session->accept_evts_fifo))
1145 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1146 accepted_msg = &evt->accepted_msg;
1147 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1148 vcl_send_session_accepted_reply (session->vpp_evt_q,
1149 accepted_msg->context,
1150 accepted_msg->handle, -1);
1152 clib_fifo_free (session->accept_evts_fifo);
1154 vcl_send_session_unlisten (wrk, session);
1156 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1157 session->vpp_handle);
1158 vcl_evt (VCL_EVT_UNBIND, session);
1160 session->vpp_handle = ~0;
1161 session->session_state = VCL_STATE_DISCONNECT;
1169 * Notify vpp of the disconnect and mark the worker as free. If we're the
1170 * last worker, do a full cleanup otherwise, since we're probably a forked
1171 * child, avoid syscalls as much as possible. We might've lost privileges.
1174 vppcom_app_exit (void)
1176 if (!pool_elts (vcm->workers))
1178 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1179 vcl_set_worker_index (~0);
1180 vcl_elog_stop (vcm);
1184 vcl_api_attach (void)
1186 if (vcm->cfg.vpp_app_socket_api)
1187 return vcl_sapi_attach ();
1189 return vcl_bapi_attach ();
1193 vcl_api_detach (vcl_worker_t * wrk)
1195 vcl_send_app_detach (wrk);
1197 if (vcm->cfg.vpp_app_socket_api)
1198 return vcl_sapi_detach (wrk);
1200 return vcl_bapi_disconnect_from_vpp ();
1204 * VPPCOM Public API functions
1207 vppcom_app_create (const char *app_name)
1209 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1214 VDBG (1, "already initialized");
1215 return VPPCOM_EEXIST;
1219 vppcom_cfg (&vcm->cfg);
1220 vcl_cfg = &vcm->cfg;
1222 vcm->main_cpu = pthread_self ();
1223 vcm->main_pid = getpid ();
1224 vcm->app_name = format (0, "%s", app_name);
1225 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1226 20 /* timeout in secs */ );
1227 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1228 clib_spinlock_init (&vcm->workers_lock);
1229 clib_rwlock_init (&vcm->segment_table_lock);
1230 atexit (vppcom_app_exit);
1231 vcl_elog_init (vcm);
1233 /* Allocate default worker */
1234 vcl_worker_alloc_and_init ();
1236 if ((rv = vcl_api_attach ()))
1239 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1240 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1246 vppcom_app_destroy (void)
1248 vcl_worker_t *wrk, *current_wrk;
1251 if (!pool_elts (vcm->workers))
1254 vcl_evt (VCL_EVT_DETACH, vcm);
1256 current_wrk = vcl_worker_get_current ();
1259 pool_foreach (wrk, vcm->workers) {
1260 if (current_wrk != wrk)
1261 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1265 vcl_api_detach (current_wrk);
1266 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1268 vcl_elog_stop (vcm);
1271 * Free the heap and fix vcm
1273 heap = clib_mem_get_heap ();
1274 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1276 vcm = &_vppcom_main;
1281 vppcom_session_create (u8 proto, u8 is_nonblocking)
1283 vcl_worker_t *wrk = vcl_worker_get_current ();
1284 vcl_session_t *session;
1286 session = vcl_session_alloc (wrk);
1288 session->session_type = proto;
1289 session->session_state = VCL_STATE_CLOSED;
1290 session->vpp_handle = ~0;
1291 session->ckpair_index = ~0;
1292 session->is_dgram = vcl_proto_is_dgram (proto);
1295 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1297 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1298 is_nonblocking, session_index);
1300 VDBG (0, "created session %u", session->session_index);
1302 return vcl_session_handle (session);
1306 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1307 vcl_session_handle_t sh, u8 do_disconnect)
1311 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1313 if (s->flags & VCL_SESSION_F_IS_VEP)
1315 u32 next_sh = s->vep.next_sh;
1316 while (next_sh != ~0)
1318 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1319 if (PREDICT_FALSE (rv < 0))
1320 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1321 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1322 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1323 next_sh = s->vep.next_sh;
1328 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1330 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1332 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1333 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1334 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1339 VDBG (1, "session %u [0x%llx] disconnect skipped",
1340 s->session_index, s->vpp_handle);
1344 if (s->session_state == VCL_STATE_LISTEN)
1346 rv = vppcom_session_unbind (sh);
1347 if (PREDICT_FALSE (rv < 0))
1348 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1349 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1350 vppcom_retval_str (rv));
1353 else if (vcl_session_is_ready (s)
1354 || (vcl_session_is_connectable_listener (wrk, s)))
1356 rv = vppcom_session_disconnect (sh);
1357 if (PREDICT_FALSE (rv < 0))
1358 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1359 " rv %d (%s)", s->session_index, s->vpp_handle,
1360 rv, vppcom_retval_str (rv));
1362 else if (s->session_state == VCL_STATE_DISCONNECT)
1364 vcl_send_session_reset_reply (wrk, s, 0);
1366 else if (s->session_state == VCL_STATE_DETACHED)
1368 /* Should not happen. VPP cleaned up before app confirmed close */
1369 VDBG (0, "vpp freed session %d before close", s->session_index);
1373 s->session_state = VCL_STATE_CLOSED;
1375 /* Session is removed only after vpp confirms the disconnect */
1379 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1381 vcl_session_free (wrk, s);
1382 vcl_evt (VCL_EVT_CLOSE, s, rv);
1388 vppcom_session_close (uint32_t session_handle)
1390 vcl_worker_t *wrk = vcl_worker_get_current ();
1391 vcl_session_t *session;
1393 session = vcl_session_get_w_handle (wrk, session_handle);
1395 return VPPCOM_EBADFD;
1396 return vcl_session_cleanup (wrk, session, session_handle,
1397 1 /* do_disconnect */ );
1401 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1403 vcl_worker_t *wrk = vcl_worker_get_current ();
1404 vcl_session_t *session = 0;
1407 return VPPCOM_EINVAL;
1409 session = vcl_session_get_w_handle (wrk, session_handle);
1411 return VPPCOM_EBADFD;
1413 if (session->flags & VCL_SESSION_F_IS_VEP)
1415 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1416 session->session_index);
1417 return VPPCOM_EBADFD;
1420 session->transport.is_ip4 = ep->is_ip4;
1422 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1423 sizeof (ip4_address_t));
1425 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1426 sizeof (ip6_address_t));
1427 session->transport.lcl_port = ep->port;
1429 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1430 "proto %s", session->session_index, session_handle,
1431 session->transport.is_ip4 ? "IPv4" : "IPv6",
1432 format_ip46_address, &session->transport.lcl_ip,
1433 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1434 clib_net_to_host_u16 (session->transport.lcl_port),
1435 vppcom_proto_str (session->session_type));
1436 vcl_evt (VCL_EVT_BIND, session);
1438 if (session->session_type == VPPCOM_PROTO_UDP)
1439 vppcom_session_listen (session_handle, 10);
1445 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1447 vcl_worker_t *wrk = vcl_worker_get_current ();
1448 vcl_session_t *listen_session = 0;
1449 u64 listen_vpp_handle;
1452 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1453 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1454 return VPPCOM_EBADFD;
1456 if (q_len == 0 || q_len == ~0)
1457 q_len = vcm->cfg.listen_queue_size;
1459 listen_vpp_handle = listen_session->vpp_handle;
1460 if (listen_session->session_state == VCL_STATE_LISTEN)
1462 VDBG (0, "session %u [0x%llx]: already in listen state!",
1463 listen_sh, listen_vpp_handle);
1467 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1470 * Send listen request to vpp and wait for reply
1472 vcl_send_session_listen (wrk, listen_session);
1473 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1475 vcm->cfg.session_timeout);
1477 if (PREDICT_FALSE (rv))
1479 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1480 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1481 listen_sh, listen_session->vpp_handle, rv,
1482 vppcom_retval_str (rv));
1490 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1492 if (ls->flags & VCL_SESSION_F_IS_VEP)
1494 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1496 return VPPCOM_EBADFD;
1499 if ((ls->session_state != VCL_STATE_LISTEN)
1500 && (!vcl_session_is_connectable_listener (wrk, ls)))
1502 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1503 " (%s)", ls->vpp_handle, ls->session_state,
1504 vppcom_session_state_str (ls->session_state));
1505 return VPPCOM_EBADFD;
1511 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1513 if (!strcmp (proto_str, "TCP"))
1514 *proto = VPPCOM_PROTO_TCP;
1515 else if (!strcmp (proto_str, "tcp"))
1516 *proto = VPPCOM_PROTO_TCP;
1517 else if (!strcmp (proto_str, "UDP"))
1518 *proto = VPPCOM_PROTO_UDP;
1519 else if (!strcmp (proto_str, "udp"))
1520 *proto = VPPCOM_PROTO_UDP;
1521 else if (!strcmp (proto_str, "TLS"))
1522 *proto = VPPCOM_PROTO_TLS;
1523 else if (!strcmp (proto_str, "tls"))
1524 *proto = VPPCOM_PROTO_TLS;
1525 else if (!strcmp (proto_str, "QUIC"))
1526 *proto = VPPCOM_PROTO_QUIC;
1527 else if (!strcmp (proto_str, "quic"))
1528 *proto = VPPCOM_PROTO_QUIC;
1535 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1538 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1539 vcl_worker_t *wrk = vcl_worker_get_current ();
1540 session_accepted_msg_t accepted_msg;
1541 vcl_session_t *listen_session = 0;
1542 vcl_session_t *client_session = 0;
1543 vcl_session_msg_t *evt;
1549 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1550 if (!listen_session)
1551 return VPPCOM_EBADFD;
1553 listen_session_index = listen_session->session_index;
1554 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1557 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1559 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1560 accept_flags = evt->flags;
1561 accepted_msg = evt->accepted_msg;
1565 is_nonblocking = vcl_session_has_attr (listen_session,
1566 VCL_SESS_ATTR_NONBLOCK);
1569 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1570 return VPPCOM_EAGAIN;
1572 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1573 vcl_worker_flush_mq_events (wrk);
1579 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1580 listen_session_index);
1581 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1582 return VPPCOM_ECONNABORTED;
1584 listen_session = vcl_session_get (wrk, listen_session_index);
1585 client_session = vcl_session_get (wrk, client_session_index);
1587 if (flags & O_NONBLOCK)
1588 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1590 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1591 " flags %d, is_nonblocking %u", listen_session->session_index,
1592 listen_session->vpp_handle, client_session_index,
1593 client_session->vpp_handle, flags,
1594 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1598 ep->is_ip4 = client_session->transport.is_ip4;
1599 ep->port = client_session->transport.rmt_port;
1600 if (client_session->transport.is_ip4)
1601 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1602 sizeof (ip4_address_t));
1604 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1605 sizeof (ip6_address_t));
1608 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1609 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1610 client_session_index, client_session->vpp_handle,
1611 format_ip46_address, &client_session->transport.rmt_ip,
1612 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1613 clib_net_to_host_u16 (client_session->transport.rmt_port),
1614 format_ip46_address, &client_session->transport.lcl_ip,
1615 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1616 clib_net_to_host_u16 (client_session->transport.lcl_port));
1617 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1618 client_session_index);
1621 * Session might have been closed already
1625 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1626 client_session->session_state = VCL_STATE_VPP_CLOSING;
1627 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1628 client_session->session_state = VCL_STATE_DISCONNECT;
1630 return vcl_session_handle (client_session);
1634 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1636 vcl_worker_t *wrk = vcl_worker_get_current ();
1637 vcl_session_t *session = 0;
1641 session = vcl_session_get_w_handle (wrk, session_handle);
1643 return VPPCOM_EBADFD;
1644 session_index = session->session_index;
1646 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1648 VDBG (0, "ERROR: cannot connect epoll session %u!",
1649 session->session_index);
1650 return VPPCOM_EBADFD;
1653 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1655 VDBG (0, "session handle %u [0x%llx]: session already "
1656 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1657 session_handle, session->vpp_handle,
1658 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1659 &session->transport.rmt_ip, session->transport.is_ip4 ?
1660 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1661 clib_net_to_host_u16 (session->transport.rmt_port),
1662 vppcom_proto_str (session->session_type), session->session_state,
1663 vppcom_session_state_str (session->session_state));
1667 /* Attempt to connect a connectionless listener */
1668 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1670 if (session->session_type != VPPCOM_PROTO_UDP)
1671 return VPPCOM_EINVAL;
1672 vcl_send_session_unlisten (wrk, session);
1673 session->session_state = VCL_STATE_CLOSED;
1676 session->transport.is_ip4 = server_ep->is_ip4;
1677 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1678 session->transport.rmt_port = server_ep->port;
1679 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1680 session->flags |= VCL_SESSION_F_CONNECTED;
1682 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1683 "port %d proto %s", session_handle,
1684 vppcom_session_state_str (session->session_state),
1685 session->transport.is_ip4 ? "IPv4" : "IPv6",
1686 format_ip46_address,
1687 &session->transport.rmt_ip, session->transport.is_ip4 ?
1688 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1689 clib_net_to_host_u16 (session->transport.rmt_port),
1690 vppcom_proto_str (session->session_type));
1692 vcl_send_session_connect (wrk, session);
1694 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1696 /* State set to STATE_UPDATED to ensure the session is not assumed
1697 * to be ready and to also allow the app to close it prior to vpp's
1698 * connected reply. */
1699 session->session_state = VCL_STATE_UPDATED;
1700 return VPPCOM_EINPROGRESS;
1704 * Wait for reply from vpp if blocking
1706 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1707 vcm->cfg.session_timeout);
1709 session = vcl_session_get (wrk, session_index);
1710 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1711 session->vpp_handle, rv ? "failed" : "succeeded");
1717 vppcom_session_stream_connect (uint32_t session_handle,
1718 uint32_t parent_session_handle)
1720 vcl_worker_t *wrk = vcl_worker_get_current ();
1721 vcl_session_t *session, *parent_session;
1722 u32 session_index, parent_session_index;
1725 session = vcl_session_get_w_handle (wrk, session_handle);
1727 return VPPCOM_EBADFD;
1728 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1729 if (!parent_session)
1730 return VPPCOM_EBADFD;
1732 session_index = session->session_index;
1733 parent_session_index = parent_session->session_index;
1734 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1736 VDBG (0, "ERROR: cannot connect epoll session %u!",
1737 session->session_index);
1738 return VPPCOM_EBADFD;
1741 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1743 VDBG (0, "session handle %u [0x%llx]: session already "
1744 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1745 session_handle, session->vpp_handle,
1746 parent_session_handle, parent_session->vpp_handle,
1747 vppcom_proto_str (session->session_type), session->session_state,
1748 vppcom_session_state_str (session->session_state));
1752 /* Connect to quic session specifics */
1753 session->transport.is_ip4 = parent_session->transport.is_ip4;
1754 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1755 session->transport.rmt_port = 0;
1756 session->parent_handle = parent_session->vpp_handle;
1758 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1759 session_handle, parent_session_handle, parent_session->vpp_handle);
1762 * Send connect request and wait for reply from vpp
1764 vcl_send_session_connect (wrk, session);
1765 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1766 vcm->cfg.session_timeout);
1768 session->listener_index = parent_session_index;
1769 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1771 parent_session->n_accepted_sessions++;
1773 session = vcl_session_get (wrk, session_index);
1774 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1775 session->vpp_handle, rv ? "failed" : "succeeded");
1781 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1784 vcl_worker_t *wrk = vcl_worker_get_current ();
1785 int rv, n_read = 0, is_nonblocking;
1786 vcl_session_t *s = 0;
1787 svm_fifo_t *rx_fifo;
1792 if (PREDICT_FALSE (!buf))
1793 return VPPCOM_EINVAL;
1795 s = vcl_session_get_w_handle (wrk, session_handle);
1796 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1797 return VPPCOM_EBADFD;
1799 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1801 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1802 s->session_index, s->vpp_handle, s->session_state,
1803 vppcom_session_state_str (s->session_state));
1804 return vcl_session_closed_error (s);
1807 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1808 is_ct = vcl_session_is_ct (s);
1809 mq = wrk->app_event_queue;
1810 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1811 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1813 if (svm_fifo_is_empty_cons (rx_fifo))
1817 if (vcl_session_is_closing (s))
1818 return vcl_session_closing_error (s);
1820 svm_fifo_unset_event (s->rx_fifo);
1821 svm_fifo_unset_event (rx_fifo);
1822 return VPPCOM_EWOULDBLOCK;
1824 while (svm_fifo_is_empty_cons (rx_fifo))
1826 if (vcl_session_is_closing (s))
1827 return vcl_session_closing_error (s);
1830 svm_fifo_unset_event (s->rx_fifo);
1831 svm_fifo_unset_event (rx_fifo);
1833 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1834 vcl_worker_flush_mq_events (wrk);
1841 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1843 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1848 if (svm_fifo_is_empty_cons (rx_fifo))
1851 svm_fifo_unset_event (s->rx_fifo);
1852 svm_fifo_unset_event (rx_fifo);
1853 if (!svm_fifo_is_empty_cons (rx_fifo)
1854 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1856 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1857 e->event_type = SESSION_IO_EVT_RX;
1858 e->session_index = s->session_index;
1861 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1863 /* More data enqueued while reading. Try to drain it
1864 * or fill the buffer. Avoid doing that for dgrams */
1870 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1872 svm_fifo_clear_deq_ntf (rx_fifo);
1873 app_send_io_evt_to_vpp (s->vpp_evt_q,
1874 s->rx_fifo->shr->master_session_index,
1875 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1878 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1879 s->vpp_handle, n_read, rx_fifo);
1885 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1887 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1891 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1893 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1897 vppcom_session_read_segments (uint32_t session_handle,
1898 vppcom_data_segment_t * ds, uint32_t n_segments,
1901 vcl_worker_t *wrk = vcl_worker_get_current ();
1902 int n_read = 0, is_nonblocking;
1903 vcl_session_t *s = 0;
1904 svm_fifo_t *rx_fifo;
1908 s = vcl_session_get_w_handle (wrk, session_handle);
1909 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1910 return VPPCOM_EBADFD;
1912 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1913 return vcl_session_closed_error (s);
1915 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1916 is_ct = vcl_session_is_ct (s);
1917 mq = wrk->app_event_queue;
1918 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1919 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1921 if (svm_fifo_is_empty_cons (rx_fifo))
1926 svm_fifo_unset_event (s->rx_fifo);
1927 svm_fifo_unset_event (rx_fifo);
1928 return VPPCOM_EWOULDBLOCK;
1930 while (svm_fifo_is_empty_cons (rx_fifo))
1932 if (vcl_session_is_closing (s))
1933 return vcl_session_closing_error (s);
1936 svm_fifo_unset_event (s->rx_fifo);
1937 svm_fifo_unset_event (rx_fifo);
1939 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1940 vcl_worker_flush_mq_events (wrk);
1944 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1945 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1947 return VPPCOM_EAGAIN;
1949 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1952 svm_fifo_unset_event (s->rx_fifo);
1953 svm_fifo_unset_event (rx_fifo);
1954 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1955 && svm_fifo_set_event (rx_fifo)
1956 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1959 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1960 e->event_type = SESSION_IO_EVT_RX;
1961 e->session_index = s->session_index;
1965 s->rx_bytes_pending += n_read;
1970 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
1972 vcl_worker_t *wrk = vcl_worker_get_current ();
1976 s = vcl_session_get_w_handle (wrk, session_handle);
1977 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1980 is_ct = vcl_session_is_ct (s);
1981 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
1983 ASSERT (s->rx_bytes_pending < n_bytes);
1984 s->rx_bytes_pending -= n_bytes;
1988 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
1990 u32 max_enq = svm_fifo_max_enqueue_prod (f);
1992 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
1998 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
1999 size_t n, u8 is_flush, u8 is_dgram)
2001 int n_write, is_nonblocking;
2002 session_evt_type_t et;
2003 svm_fifo_t *tx_fifo;
2007 if (PREDICT_FALSE (!buf || n == 0))
2008 return VPPCOM_EINVAL;
2010 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2012 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2013 " session!", s->session_index, s->vpp_handle);
2014 return VPPCOM_EBADFD;
2017 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2019 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2020 s->session_index, s->vpp_handle, s->session_state,
2021 vppcom_session_state_str (s->session_state));
2022 return vcl_session_closed_error (s);;
2025 is_ct = vcl_session_is_ct (s);
2026 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2027 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2029 mq = wrk->app_event_queue;
2030 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2034 return VPPCOM_EWOULDBLOCK;
2036 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2038 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2039 if (vcl_session_is_closing (s))
2040 return vcl_session_closing_error (s);
2042 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2043 vcl_worker_flush_mq_events (wrk);
2047 et = SESSION_IO_EVT_TX;
2048 if (is_flush && !is_ct)
2049 et = SESSION_IO_EVT_TX_FLUSH;
2052 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2053 s->vpp_evt_q, buf, n, et,
2054 0 /* do_evt */ , SVM_Q_WAIT);
2056 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2057 0 /* do_evt */ , SVM_Q_WAIT);
2059 if (svm_fifo_set_event (s->tx_fifo))
2060 app_send_io_evt_to_vpp (
2061 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2063 /* The underlying fifo segment can run out of memory */
2064 if (PREDICT_FALSE (n_write < 0))
2065 return VPPCOM_EAGAIN;
2067 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2068 s->vpp_handle, n_write);
2074 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2076 vcl_worker_t *wrk = vcl_worker_get_current ();
2079 s = vcl_session_get_w_handle (wrk, session_handle);
2080 if (PREDICT_FALSE (!s))
2081 return VPPCOM_EBADFD;
2083 return vppcom_session_write_inline (wrk, s, buf, n,
2084 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2088 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2090 vcl_worker_t *wrk = vcl_worker_get_current ();
2093 s = vcl_session_get_w_handle (wrk, session_handle);
2094 if (PREDICT_FALSE (!s))
2095 return VPPCOM_EBADFD;
2097 return vppcom_session_write_inline (wrk, s, buf, n,
2098 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2101 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2102 if (PREDICT_FALSE (!_s->rx_fifo)) \
2104 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2106 if (!vcl_session_is_ct (_s)) \
2108 svm_fifo_unset_event (_s->rx_fifo); \
2109 if (svm_fifo_is_empty (_s->rx_fifo)) \
2112 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2114 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2115 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2121 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2122 unsigned long n_bits, unsigned long *read_map,
2123 unsigned long *write_map,
2124 unsigned long *except_map, u32 * bits_set)
2126 session_disconnected_msg_t *disconnected_msg;
2127 session_connected_msg_t *connected_msg;
2131 switch (e->event_type)
2133 case SESSION_IO_EVT_RX:
2134 sid = e->session_index;
2135 s = vcl_session_get (wrk, sid);
2136 if (!s || !vcl_session_is_open (s))
2138 vcl_fifo_rx_evt_valid_or_break (s);
2139 if (sid < n_bits && read_map)
2141 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2145 case SESSION_IO_EVT_TX:
2146 sid = e->session_index;
2147 s = vcl_session_get (wrk, sid);
2148 if (!s || !vcl_session_is_open (s))
2150 if (sid < n_bits && write_map)
2152 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2156 case SESSION_CTRL_EVT_ACCEPTED:
2158 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2160 s = vcl_session_get (wrk, e->session_index);
2163 sid = s->session_index;
2164 if (sid < n_bits && read_map)
2166 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2170 case SESSION_CTRL_EVT_CONNECTED:
2173 connected_msg = (session_connected_msg_t *) e->data;
2174 sid = vcl_session_connected_handler (wrk, connected_msg);
2177 sid = e->session_index;
2178 if (sid == VCL_INVALID_SESSION_INDEX)
2180 if (sid < n_bits && write_map)
2182 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2186 case SESSION_CTRL_EVT_DISCONNECTED:
2187 disconnected_msg = (session_disconnected_msg_t *) e->data;
2188 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2191 sid = s->session_index;
2192 if (sid < n_bits && except_map)
2194 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2198 case SESSION_CTRL_EVT_RESET:
2199 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2200 if (sid < n_bits && except_map)
2202 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2206 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2207 vcl_session_unlisten_reply_handler (wrk, e->data);
2209 case SESSION_CTRL_EVT_MIGRATED:
2210 vcl_session_migrated_handler (wrk, e->data);
2212 case SESSION_CTRL_EVT_CLEANUP:
2213 vcl_session_cleanup_handler (wrk, e->data);
2215 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2216 vcl_session_worker_update_reply_handler (wrk, e->data);
2218 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2219 vcl_session_req_worker_update_handler (wrk, e->data);
2221 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2222 vcl_session_app_add_segment_handler (wrk, e->data);
2224 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2225 vcl_session_app_del_segment_handler (wrk, e->data);
2227 case SESSION_CTRL_EVT_APP_WRK_RPC:
2228 vcl_worker_rpc_handler (wrk, e->data);
2231 clib_warning ("unhandled: %u", e->event_type);
2237 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2238 unsigned long n_bits, unsigned long *read_map,
2239 unsigned long *write_map, unsigned long *except_map,
2240 double time_to_wait, u32 * bits_set)
2242 svm_msg_q_msg_t *msg;
2246 if (svm_msg_q_is_empty (mq))
2253 else if (time_to_wait < 0)
2254 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2257 if (svm_msg_q_timedwait (mq, time_to_wait))
2261 vcl_mq_dequeue_batch (wrk, mq, ~0);
2263 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2265 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2266 e = svm_msg_q_msg_data (mq, msg);
2267 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2268 except_map, bits_set);
2269 svm_msg_q_free_msg (mq, msg);
2271 vec_reset_length (wrk->mq_msg_vector);
2272 vcl_handle_pending_wrk_updates (wrk);
2277 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2278 vcl_si_set * read_map, vcl_si_set * write_map,
2279 vcl_si_set * except_map, double time_to_wait,
2282 double wait = 0, start = 0;
2286 wait = time_to_wait;
2287 start = clib_time_now (&wrk->clib_time);
2292 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2293 write_map, except_map, wait, bits_set);
2299 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2307 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2308 vcl_si_set * read_map, vcl_si_set * write_map,
2309 vcl_si_set * except_map, double time_to_wait,
2312 vcl_mq_evt_conn_t *mqc;
2313 int __clib_unused n_read;
2317 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2318 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2319 vec_len (wrk->mq_events), time_to_wait);
2320 for (i = 0; i < n_mq_evts; i++)
2322 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2323 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2324 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2325 except_map, 0, bits_set);
2328 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2332 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2333 vcl_si_set * except_map, double time_to_wait)
2335 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2336 vcl_worker_t *wrk = vcl_worker_get_current ();
2337 vcl_session_t *s = 0;
2340 if (n_bits && read_map)
2342 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2343 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2344 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2345 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2347 if (n_bits && write_map)
2349 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2350 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2351 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2352 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2354 if (n_bits && except_map)
2356 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2357 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2358 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2359 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2368 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2370 if (!(s = vcl_session_get (wrk, sid)))
2372 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2377 if (vcl_session_write_ready (s))
2379 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2384 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2385 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2393 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2395 if (!(s = vcl_session_get (wrk, sid)))
2397 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2402 if (vcl_session_read_ready (s))
2404 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2411 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2413 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2414 read_map, write_map, except_map, &bits_set);
2416 vec_reset_length (wrk->unhandled_evts_vector);
2418 if (vcm->cfg.use_mq_eventfd)
2419 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2420 time_to_wait, &bits_set);
2422 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2423 time_to_wait, &bits_set);
2429 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2431 vppcom_epoll_t *vep;
2432 u32 sh = vep_handle;
2435 if (VPPCOM_DEBUG <= 2)
2438 s = vcl_session_get_w_handle (wrk, vep_handle);
2439 if (PREDICT_FALSE (!s))
2441 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2444 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2446 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2450 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2453 " is_vep_session = %u\n"
2454 " next_sh = 0x%x (%u)\n"
2455 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2456 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2458 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2460 s = vcl_session_get_w_handle (wrk, sh);
2461 if (PREDICT_FALSE (!s))
2463 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2466 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2468 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2470 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2472 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2476 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2477 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2478 sh, s->vep.vep_sh, vep_handle);
2479 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2481 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2483 " next_sh = 0x%x (%u)\n"
2484 " prev_sh = 0x%x (%u)\n"
2485 " vep_sh = 0x%x (%u)\n"
2486 " ev.events = 0x%x\n"
2487 " ev.data.u64 = 0x%llx\n"
2490 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2491 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2492 vep->ev.data.u64, vep->et_mask);
2497 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2501 vppcom_epoll_create (void)
2503 vcl_worker_t *wrk = vcl_worker_get_current ();
2504 vcl_session_t *vep_session;
2506 vep_session = vcl_session_alloc (wrk);
2508 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2509 vep_session->vep.vep_sh = ~0;
2510 vep_session->vep.next_sh = ~0;
2511 vep_session->vep.prev_sh = ~0;
2512 vep_session->vpp_handle = ~0;
2514 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2515 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2517 return vcl_session_handle (vep_session);
2521 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2522 struct epoll_event *event)
2524 vcl_worker_t *wrk = vcl_worker_get_current ();
2525 vcl_session_t *vep_session;
2530 if (vep_handle == session_handle)
2532 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2533 return VPPCOM_EINVAL;
2536 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2537 if (PREDICT_FALSE (!vep_session))
2539 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2540 return VPPCOM_EBADFD;
2542 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2544 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2545 return VPPCOM_EINVAL;
2548 ASSERT (vep_session->vep.vep_sh == ~0);
2549 ASSERT (vep_session->vep.prev_sh == ~0);
2551 s = vcl_session_get_w_handle (wrk, session_handle);
2552 if (PREDICT_FALSE (!s))
2554 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2555 return VPPCOM_EBADFD;
2557 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2559 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2560 return VPPCOM_EINVAL;
2566 if (PREDICT_FALSE (!event))
2568 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2569 return VPPCOM_EINVAL;
2571 if (vep_session->vep.next_sh != ~0)
2573 vcl_session_t *next_session;
2574 next_session = vcl_session_get_w_handle (wrk,
2575 vep_session->vep.next_sh);
2576 if (PREDICT_FALSE (!next_session))
2578 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2579 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2580 return VPPCOM_EBADFD;
2582 ASSERT (next_session->vep.prev_sh == vep_handle);
2583 next_session->vep.prev_sh = session_handle;
2585 s->vep.next_sh = vep_session->vep.next_sh;
2586 s->vep.prev_sh = vep_handle;
2587 s->vep.vep_sh = vep_handle;
2588 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2590 s->flags &= ~VCL_SESSION_F_IS_VEP;
2591 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2592 vep_session->vep.next_sh = session_handle;
2594 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2595 if (txf && (event->events & EPOLLOUT))
2596 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2598 /* Generate EPOLLOUT if tx fifo not full */
2599 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2601 session_event_t e = { 0 };
2602 e.event_type = SESSION_IO_EVT_TX;
2603 e.session_index = s->session_index;
2604 vec_add1 (wrk->unhandled_evts_vector, e);
2606 /* Generate EPOLLIN if rx fifo has data */
2607 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2609 session_event_t e = { 0 };
2610 e.event_type = SESSION_IO_EVT_RX;
2611 e.session_index = s->session_index;
2612 vec_add1 (wrk->unhandled_evts_vector, e);
2614 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2615 vep_handle, session_handle, event->events, event->data.u64);
2616 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2620 if (PREDICT_FALSE (!event))
2622 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2626 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2628 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2632 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2634 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2635 session_handle, s->vep.vep_sh, vep_handle);
2640 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2641 if ((event->events & EPOLLOUT) &&
2642 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2644 session_event_t e = { 0 };
2645 e.event_type = SESSION_IO_EVT_TX;
2646 e.session_index = s->session_index;
2647 vec_add1 (wrk->unhandled_evts_vector, e);
2649 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2651 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2652 if (event->events & EPOLLOUT)
2653 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2655 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2656 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2657 vep_handle, session_handle, event->events, event->data.u64);
2661 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2663 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2667 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2669 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2670 session_handle, s->vep.vep_sh, vep_handle);
2675 if (s->vep.prev_sh == vep_handle)
2676 vep_session->vep.next_sh = s->vep.next_sh;
2679 vcl_session_t *prev_session;
2680 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2681 if (PREDICT_FALSE (!prev_session))
2683 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2684 s->vep.prev_sh, session_handle);
2685 return VPPCOM_EBADFD;
2687 ASSERT (prev_session->vep.next_sh == session_handle);
2688 prev_session->vep.next_sh = s->vep.next_sh;
2690 if (s->vep.next_sh != ~0)
2692 vcl_session_t *next_session;
2693 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2694 if (PREDICT_FALSE (!next_session))
2696 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2697 s->vep.next_sh, session_handle);
2698 return VPPCOM_EBADFD;
2700 ASSERT (next_session->vep.prev_sh == session_handle);
2701 next_session->vep.prev_sh = s->vep.prev_sh;
2704 memset (&s->vep, 0, sizeof (s->vep));
2705 s->vep.next_sh = ~0;
2706 s->vep.prev_sh = ~0;
2708 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2710 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2712 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2714 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2716 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2720 VDBG (0, "Invalid operation (%d)!", op);
2724 vep_verify_epoll_chain (wrk, vep_handle);
2731 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2732 struct epoll_event *events, u32 * num_ev)
2734 session_disconnected_msg_t *disconnected_msg;
2735 session_connected_msg_t *connected_msg;
2736 u32 sid = ~0, session_events;
2737 u64 session_evt_data = ~0;
2741 switch (e->event_type)
2743 case SESSION_IO_EVT_RX:
2744 sid = e->session_index;
2745 s = vcl_session_get (wrk, sid);
2746 if (vcl_session_is_closed (s))
2748 vcl_fifo_rx_evt_valid_or_break (s);
2749 session_events = s->vep.ev.events;
2750 if (!(EPOLLIN & s->vep.ev.events)
2751 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2754 events[*num_ev].events |= EPOLLIN;
2755 session_evt_data = s->vep.ev.data.u64;
2756 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2758 case SESSION_IO_EVT_TX:
2759 sid = e->session_index;
2760 s = vcl_session_get (wrk, sid);
2761 if (vcl_session_is_closed (s))
2763 session_events = s->vep.ev.events;
2764 if (!(EPOLLOUT & session_events))
2767 events[*num_ev].events |= EPOLLOUT;
2768 session_evt_data = s->vep.ev.data.u64;
2769 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2770 s->ct_tx_fifo : s->tx_fifo);
2772 case SESSION_CTRL_EVT_ACCEPTED:
2774 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2776 s = vcl_session_get (wrk, e->session_index);
2779 session_events = s->vep.ev.events;
2780 sid = s->session_index;
2781 if (!(EPOLLIN & session_events))
2784 events[*num_ev].events |= EPOLLIN;
2785 session_evt_data = s->vep.ev.data.u64;
2787 case SESSION_CTRL_EVT_CONNECTED:
2790 connected_msg = (session_connected_msg_t *) e->data;
2791 sid = vcl_session_connected_handler (wrk, connected_msg);
2794 sid = e->session_index;
2795 s = vcl_session_get (wrk, sid);
2796 if (vcl_session_is_closed (s))
2798 session_events = s->vep.ev.events;
2799 /* Generate EPOLLOUT because there's no connected event */
2800 if (!(EPOLLOUT & session_events))
2803 events[*num_ev].events |= EPOLLOUT;
2804 session_evt_data = s->vep.ev.data.u64;
2805 if (s->session_state == VCL_STATE_DETACHED)
2806 events[*num_ev].events |= EPOLLHUP;
2808 case SESSION_CTRL_EVT_DISCONNECTED:
2809 disconnected_msg = (session_disconnected_msg_t *) e->data;
2810 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2811 if (vcl_session_is_closed (s))
2813 sid = s->session_index;
2814 session_events = s->vep.ev.events;
2816 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2817 session_evt_data = s->vep.ev.data.u64;
2819 case SESSION_CTRL_EVT_RESET:
2820 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2821 s = vcl_session_get (wrk, sid);
2822 if (vcl_session_is_closed (s))
2824 session_events = s->vep.ev.events;
2826 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2827 session_evt_data = s->vep.ev.data.u64;
2829 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2830 vcl_session_unlisten_reply_handler (wrk, e->data);
2832 case SESSION_CTRL_EVT_MIGRATED:
2833 vcl_session_migrated_handler (wrk, e->data);
2835 case SESSION_CTRL_EVT_CLEANUP:
2836 vcl_session_cleanup_handler (wrk, e->data);
2838 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2839 vcl_session_req_worker_update_handler (wrk, e->data);
2841 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2842 vcl_session_worker_update_reply_handler (wrk, e->data);
2844 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2845 vcl_session_app_add_segment_handler (wrk, e->data);
2847 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2848 vcl_session_app_del_segment_handler (wrk, e->data);
2850 case SESSION_CTRL_EVT_APP_WRK_RPC:
2851 vcl_worker_rpc_handler (wrk, e->data);
2854 VDBG (0, "unhandled: %u", e->event_type);
2860 events[*num_ev].data.u64 = session_evt_data;
2861 if (EPOLLONESHOT & session_events)
2863 s = vcl_session_get (wrk, sid);
2864 s->vep.ev.events = 0;
2871 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2872 struct epoll_event *events, u32 maxevents,
2873 double wait_for_time, u32 * num_ev)
2875 svm_msg_q_msg_t *msg;
2879 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2880 goto handle_dequeued;
2882 if (svm_msg_q_is_empty (mq))
2886 else if (wait_for_time < 0)
2887 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2890 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2894 ASSERT (maxevents > *num_ev);
2895 vcl_mq_dequeue_batch (wrk, mq, ~0);
2898 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2900 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2901 e = svm_msg_q_msg_data (mq, msg);
2902 if (*num_ev < maxevents)
2903 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2905 vcl_handle_mq_event (wrk, e);
2906 svm_msg_q_free_msg (mq, msg);
2908 vec_reset_length (wrk->mq_msg_vector);
2909 vcl_handle_pending_wrk_updates (wrk);
2914 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2915 int maxevents, u32 n_evts, double wait_for_time)
2917 double wait = 0, start = 0, now;
2921 wait = wait_for_time;
2922 start = clib_time_now (&wrk->clib_time);
2927 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2934 now = clib_time_now (&wrk->clib_time);
2935 wait -= (now - start) * 1e3;
2944 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2945 int maxevents, u32 n_evts, double wait_for_time)
2947 double wait = 0, start = 0, now;
2948 int __clib_unused n_read;
2949 vcl_mq_evt_conn_t *mqc;
2953 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2956 wait = wait_for_time;
2957 start = clib_time_now (&wrk->clib_time);
2962 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2963 vec_len (wrk->mq_events), wait);
2966 VDBG (0, "epoll_wait error %u", errno);
2970 for (i = 0; i < n_mq_evts; i++)
2972 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2973 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2974 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
2983 now = clib_time_now (&wrk->clib_time);
2984 wait -= (now - start) * 1e3;
2993 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2994 int maxevents, double wait_for_time)
2996 vcl_worker_t *wrk = vcl_worker_get_current ();
2997 vcl_session_t *vep_session;
3001 if (PREDICT_FALSE (maxevents <= 0))
3003 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3004 return VPPCOM_EINVAL;
3007 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3009 return VPPCOM_EBADFD;
3011 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3013 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3014 return VPPCOM_EINVAL;
3017 memset (events, 0, sizeof (*events) * maxevents);
3019 if (vec_len (wrk->unhandled_evts_vector))
3021 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3023 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3025 if (n_evts == maxevents)
3027 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3031 vec_reset_length (wrk->unhandled_evts_vector);
3034 if (vcm->cfg.use_mq_eventfd)
3035 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3038 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3043 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3044 void *buffer, uint32_t * buflen)
3046 vcl_worker_t *wrk = vcl_worker_get_current ();
3047 u32 *flags = buffer, tmp_flags = 0;
3048 vppcom_endpt_t *ep = buffer;
3049 vcl_session_t *session;
3052 session = vcl_session_get_w_handle (wrk, session_handle);
3054 return VPPCOM_EBADFD;
3058 case VPPCOM_ATTR_GET_NREAD:
3059 rv = vcl_session_read_ready (session);
3060 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3064 case VPPCOM_ATTR_GET_NWRITE:
3065 rv = vcl_session_write_ready (session);
3066 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3070 case VPPCOM_ATTR_GET_FLAGS:
3071 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3075 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3077 *buflen = sizeof (*flags);
3078 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3079 "is_nonblocking = %u", session_handle, *flags,
3080 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3086 case VPPCOM_ATTR_SET_FLAGS:
3087 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3089 if (*flags & O_NONBLOCK)
3090 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3092 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3094 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3095 " is_nonblocking = %u", session_handle, *flags,
3096 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3102 case VPPCOM_ATTR_GET_PEER_ADDR:
3103 if (PREDICT_TRUE (buffer && buflen &&
3104 (*buflen >= sizeof (*ep)) && ep->ip))
3106 ep->is_ip4 = session->transport.is_ip4;
3107 ep->port = session->transport.rmt_port;
3108 if (session->transport.is_ip4)
3109 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3110 sizeof (ip4_address_t));
3112 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3113 sizeof (ip6_address_t));
3114 *buflen = sizeof (*ep);
3115 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3116 "addr = %U, port %u", session_handle, ep->is_ip4,
3117 format_ip46_address, &session->transport.rmt_ip,
3118 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3119 clib_net_to_host_u16 (ep->port));
3125 case VPPCOM_ATTR_GET_LCL_ADDR:
3126 if (PREDICT_TRUE (buffer && buflen &&
3127 (*buflen >= sizeof (*ep)) && ep->ip))
3129 ep->is_ip4 = session->transport.is_ip4;
3130 ep->port = session->transport.lcl_port;
3131 if (session->transport.is_ip4)
3132 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3133 sizeof (ip4_address_t));
3135 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3136 sizeof (ip6_address_t));
3137 *buflen = sizeof (*ep);
3138 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3139 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3140 &session->transport.lcl_ip,
3141 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3142 clib_net_to_host_u16 (ep->port));
3148 case VPPCOM_ATTR_SET_LCL_ADDR:
3149 if (PREDICT_TRUE (buffer && buflen &&
3150 (*buflen >= sizeof (*ep)) && ep->ip))
3152 session->transport.is_ip4 = ep->is_ip4;
3153 session->transport.lcl_port = ep->port;
3154 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3155 *buflen = sizeof (*ep);
3156 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3157 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3158 &session->transport.lcl_ip,
3159 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3160 clib_net_to_host_u16 (ep->port));
3166 case VPPCOM_ATTR_GET_LIBC_EPFD:
3167 rv = session->libc_epfd;
3168 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3171 case VPPCOM_ATTR_SET_LIBC_EPFD:
3172 if (PREDICT_TRUE (buffer && buflen &&
3173 (*buflen == sizeof (session->libc_epfd))))
3175 session->libc_epfd = *(int *) buffer;
3176 *buflen = sizeof (session->libc_epfd);
3178 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3179 session->libc_epfd, *buflen);
3185 case VPPCOM_ATTR_GET_PROTOCOL:
3186 if (buffer && buflen && (*buflen >= sizeof (int)))
3188 *(int *) buffer = session->session_type;
3189 *buflen = sizeof (int);
3191 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3192 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3198 case VPPCOM_ATTR_GET_LISTEN:
3199 if (buffer && buflen && (*buflen >= sizeof (int)))
3201 *(int *) buffer = vcl_session_has_attr (session,
3202 VCL_SESS_ATTR_LISTEN);
3203 *buflen = sizeof (int);
3205 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3212 case VPPCOM_ATTR_GET_ERROR:
3213 if (buffer && buflen && (*buflen >= sizeof (int)))
3215 *(int *) buffer = 0;
3216 *buflen = sizeof (int);
3218 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3219 *(int *) buffer, *buflen);
3225 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3226 if (buffer && buflen && (*buflen >= sizeof (u32)))
3230 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3232 svm_fifo_size (session->tx_fifo) :
3233 vcm->cfg.tx_fifo_size);
3234 *buflen = sizeof (u32);
3236 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3237 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3244 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3245 if (buffer && buflen && (*buflen == sizeof (u32)))
3248 session->sndbuf_size = *(u32 *) buffer;
3249 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3250 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3257 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3258 if (buffer && buflen && (*buflen >= sizeof (u32)))
3262 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3264 svm_fifo_size (session->rx_fifo) :
3265 vcm->cfg.rx_fifo_size);
3266 *buflen = sizeof (u32);
3268 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3269 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3275 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3276 if (buffer && buflen && (*buflen == sizeof (u32)))
3279 session->rcvbuf_size = *(u32 *) buffer;
3280 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3281 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3288 case VPPCOM_ATTR_GET_REUSEADDR:
3289 if (buffer && buflen && (*buflen >= sizeof (int)))
3292 *(int *) buffer = vcl_session_has_attr (session,
3293 VCL_SESS_ATTR_REUSEADDR);
3294 *buflen = sizeof (int);
3296 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3297 *(int *) buffer, *buflen);
3303 case VPPCOM_ATTR_SET_REUSEADDR:
3304 if (buffer && buflen && (*buflen == sizeof (int)) &&
3305 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3308 if (*(int *) buffer)
3309 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3311 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3313 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3314 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3321 case VPPCOM_ATTR_GET_REUSEPORT:
3322 if (buffer && buflen && (*buflen >= sizeof (int)))
3325 *(int *) buffer = vcl_session_has_attr (session,
3326 VCL_SESS_ATTR_REUSEPORT);
3327 *buflen = sizeof (int);
3329 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3330 *(int *) buffer, *buflen);
3336 case VPPCOM_ATTR_SET_REUSEPORT:
3337 if (buffer && buflen && (*buflen == sizeof (int)) &&
3338 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3341 if (*(int *) buffer)
3342 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3344 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3346 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3347 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3354 case VPPCOM_ATTR_GET_BROADCAST:
3355 if (buffer && buflen && (*buflen >= sizeof (int)))
3358 *(int *) buffer = vcl_session_has_attr (session,
3359 VCL_SESS_ATTR_BROADCAST);
3360 *buflen = sizeof (int);
3362 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3363 *(int *) buffer, *buflen);
3369 case VPPCOM_ATTR_SET_BROADCAST:
3370 if (buffer && buflen && (*buflen == sizeof (int)))
3373 if (*(int *) buffer)
3374 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3376 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3378 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3379 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3386 case VPPCOM_ATTR_GET_V6ONLY:
3387 if (buffer && buflen && (*buflen >= sizeof (int)))
3390 *(int *) buffer = vcl_session_has_attr (session,
3391 VCL_SESS_ATTR_V6ONLY);
3392 *buflen = sizeof (int);
3394 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3395 *(int *) buffer, *buflen);
3401 case VPPCOM_ATTR_SET_V6ONLY:
3402 if (buffer && buflen && (*buflen == sizeof (int)))
3405 if (*(int *) buffer)
3406 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3408 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3410 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3411 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3418 case VPPCOM_ATTR_GET_KEEPALIVE:
3419 if (buffer && buflen && (*buflen >= sizeof (int)))
3422 *(int *) buffer = vcl_session_has_attr (session,
3423 VCL_SESS_ATTR_KEEPALIVE);
3424 *buflen = sizeof (int);
3426 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3427 *(int *) buffer, *buflen);
3433 case VPPCOM_ATTR_SET_KEEPALIVE:
3434 if (buffer && buflen && (*buflen == sizeof (int)))
3437 if (*(int *) buffer)
3438 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3440 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3442 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3443 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3450 case VPPCOM_ATTR_GET_TCP_NODELAY:
3451 if (buffer && buflen && (*buflen >= sizeof (int)))
3454 *(int *) buffer = vcl_session_has_attr (session,
3455 VCL_SESS_ATTR_TCP_NODELAY);
3456 *buflen = sizeof (int);
3458 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3459 *(int *) buffer, *buflen);
3465 case VPPCOM_ATTR_SET_TCP_NODELAY:
3466 if (buffer && buflen && (*buflen == sizeof (int)))
3469 if (*(int *) buffer)
3470 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3472 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3474 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3475 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3482 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3483 if (buffer && buflen && (*buflen >= sizeof (int)))
3486 *(int *) buffer = vcl_session_has_attr (session,
3487 VCL_SESS_ATTR_TCP_KEEPIDLE);
3488 *buflen = sizeof (int);
3490 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3491 *(int *) buffer, *buflen);
3497 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3498 if (buffer && buflen && (*buflen == sizeof (int)))
3501 if (*(int *) buffer)
3502 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3504 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3506 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3507 vcl_session_has_attr (session,
3508 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3514 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3515 if (buffer && buflen && (*buflen >= sizeof (int)))
3518 *(int *) buffer = vcl_session_has_attr (session,
3519 VCL_SESS_ATTR_TCP_KEEPINTVL);
3520 *buflen = sizeof (int);
3522 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3523 *(int *) buffer, *buflen);
3529 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3530 if (buffer && buflen && (*buflen == sizeof (int)))
3533 if (*(int *) buffer)
3534 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3536 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3538 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3539 vcl_session_has_attr (session,
3540 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3546 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3547 if (buffer && buflen && (*buflen >= sizeof (u32)))
3550 *(u32 *) buffer = session->user_mss;
3551 *buflen = sizeof (int);
3553 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3554 *(int *) buffer, *buflen);
3560 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3561 if (buffer && buflen && (*buflen == sizeof (u32)))
3564 session->user_mss = *(u32 *) buffer;
3566 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3567 session->user_mss, *buflen);
3573 case VPPCOM_ATTR_SET_SHUT:
3574 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3575 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3576 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3577 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3580 case VPPCOM_ATTR_GET_SHUT:
3581 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3583 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3586 *(int *) buffer = SHUT_RD;
3587 else if (tmp_flags == 2)
3588 *(int *) buffer = SHUT_WR;
3589 else if (tmp_flags == 3)
3590 *(int *) buffer = SHUT_RDWR;
3591 *buflen = sizeof (int);
3594 case VPPCOM_ATTR_SET_CONNECTED:
3595 session->flags |= VCL_SESSION_F_CONNECTED;
3598 case VPPCOM_ATTR_SET_CKPAIR:
3599 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
3600 !vcl_session_has_crypto (session))
3605 session->ckpair_index = *(uint32_t *) buffer;
3608 case VPPCOM_ATTR_SET_VRF:
3609 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3614 session->vrf = *(u32 *) buffer;
3617 case VPPCOM_ATTR_GET_VRF:
3618 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3623 *(u32 *) buffer = session->vrf;
3624 *buflen = sizeof (u32);
3636 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3637 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3639 vcl_worker_t *wrk = vcl_worker_get_current ();
3640 vcl_session_t *session;
3644 rv = vppcom_session_read (session_handle, buffer, buflen);
3645 else if (flags & MSG_PEEK)
3646 rv = vppcom_session_peek (session_handle, buffer, buflen);
3649 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3650 return VPPCOM_EAFNOSUPPORT;
3655 session = vcl_session_get_w_handle (wrk, session_handle);
3656 if (session->transport.is_ip4)
3657 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3658 sizeof (ip4_address_t));
3660 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3661 sizeof (ip6_address_t));
3662 ep->is_ip4 = session->transport.is_ip4;
3663 ep->port = session->transport.rmt_port;
3670 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3671 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3673 vcl_worker_t *wrk = vcl_worker_get_current ();
3676 s = vcl_session_get_w_handle (wrk, session_handle);
3678 return VPPCOM_EBADFD;
3681 return VPPCOM_EINVAL;
3685 if (!vcl_session_is_cl (s))
3686 return VPPCOM_EINVAL;
3688 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3689 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3691 u32 session_index = s->session_index;
3692 f64 timeout = vcm->cfg.session_timeout;
3695 vcl_send_session_connect (wrk, s);
3696 rv = vppcom_wait_for_session_state_change (session_index,
3701 s = vcl_session_get (wrk, session_index);
3704 s->transport.is_ip4 = ep->is_ip4;
3705 s->transport.rmt_port = ep->port;
3706 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3711 // TBD check the flags and do the right thing
3712 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3715 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3716 s->is_dgram ? 1 : 0));
3720 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3722 vcl_worker_t *wrk = vcl_worker_get_current ();
3723 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3724 u32 i, keep_trying = 1;
3725 svm_msg_q_msg_t msg;
3729 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3732 return VPPCOM_EFAULT;
3736 vcl_session_t *session;
3738 /* Dequeue all events and drop all unhandled io events */
3739 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3741 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3742 vcl_handle_mq_event (wrk, e);
3743 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3745 vec_reset_length (wrk->unhandled_evts_vector);
3747 for (i = 0; i < n_sids; i++)
3749 session = vcl_session_get (wrk, vp[i].sh);
3752 vp[i].revents = POLLHUP;
3759 if (POLLIN & vp[i].events)
3761 rv = vcl_session_read_ready (session);
3764 vp[i].revents |= POLLIN;
3771 case VPPCOM_ECONNRESET:
3772 vp[i].revents = POLLHUP;
3776 vp[i].revents = POLLERR;
3783 if (POLLOUT & vp[i].events)
3785 rv = vcl_session_write_ready (session);
3788 vp[i].revents |= POLLOUT;
3795 case VPPCOM_ECONNRESET:
3796 vp[i].revents = POLLHUP;
3800 vp[i].revents = POLLERR;
3807 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3809 vp[i].revents = POLLNVAL;
3813 if (wait_for_time != -1)
3814 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3816 while ((num_ev == 0) && keep_trying);
3822 vppcom_mq_epoll_fd (void)
3824 vcl_worker_t *wrk = vcl_worker_get_current ();
3825 return wrk->mqs_epfd;
3829 vppcom_session_index (vcl_session_handle_t session_handle)
3831 return session_handle & 0xFFFFFF;
3835 vppcom_session_worker (vcl_session_handle_t session_handle)
3837 return session_handle >> 24;
3841 vppcom_worker_register (void)
3843 if (!vcl_worker_alloc_and_init ())
3844 return VPPCOM_EEXIST;
3846 if (vcl_worker_register_with_vpp ())
3847 return VPPCOM_EEXIST;
3853 vppcom_worker_unregister (void)
3855 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3856 vcl_set_worker_index (~0);
3860 vppcom_worker_index_set (int index)
3862 vcl_set_worker_index (index);
3866 vppcom_worker_index (void)
3868 return vcl_get_worker_index ();
3872 vppcom_worker_mqs_epfd (void)
3874 vcl_worker_t *wrk = vcl_worker_get_current ();
3875 if (!vcm->cfg.use_mq_eventfd)
3877 return wrk->mqs_epfd;
3881 vppcom_session_is_connectable_listener (uint32_t session_handle)
3883 vcl_session_t *session;
3884 vcl_worker_t *wrk = vcl_worker_get_current ();
3885 session = vcl_session_get_w_handle (wrk, session_handle);
3887 return VPPCOM_EBADFD;
3888 return vcl_session_is_connectable_listener (wrk, session);
3892 vppcom_session_listener (uint32_t session_handle)
3894 vcl_worker_t *wrk = vcl_worker_get_current ();
3895 vcl_session_t *listen_session, *session;
3896 session = vcl_session_get_w_handle (wrk, session_handle);
3898 return VPPCOM_EBADFD;
3899 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3900 return VPPCOM_EBADFD;
3901 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3902 if (!listen_session)
3903 return VPPCOM_EBADFD;
3904 return vcl_session_handle (listen_session);
3908 vppcom_session_n_accepted (uint32_t session_handle)
3910 vcl_worker_t *wrk = vcl_worker_get_current ();
3911 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3913 return VPPCOM_EBADFD;
3914 return session->n_accepted_sessions;
3918 vppcom_proto_str (vppcom_proto_t proto)
3920 char const *proto_str;
3924 case VPPCOM_PROTO_TCP:
3927 case VPPCOM_PROTO_UDP:
3930 case VPPCOM_PROTO_TLS:
3933 case VPPCOM_PROTO_QUIC:
3937 proto_str = "UNKNOWN";
3944 vppcom_retval_str (int retval)
3955 st = "VPPCOM_EAGAIN";
3959 st = "VPPCOM_EFAULT";
3963 st = "VPPCOM_ENOMEM";
3967 st = "VPPCOM_EINVAL";
3971 st = "VPPCOM_EBADFD";
3974 case VPPCOM_EAFNOSUPPORT:
3975 st = "VPPCOM_EAFNOSUPPORT";
3978 case VPPCOM_ECONNABORTED:
3979 st = "VPPCOM_ECONNABORTED";
3982 case VPPCOM_ECONNRESET:
3983 st = "VPPCOM_ECONNRESET";
3986 case VPPCOM_ENOTCONN:
3987 st = "VPPCOM_ENOTCONN";
3990 case VPPCOM_ECONNREFUSED:
3991 st = "VPPCOM_ECONNREFUSED";
3994 case VPPCOM_ETIMEDOUT:
3995 st = "VPPCOM_ETIMEDOUT";
3999 st = "UNKNOWN_STATE";
4007 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4009 if (vcm->cfg.vpp_app_socket_api)
4011 clib_warning ("not supported");
4012 return VPPCOM_EINVAL;
4014 return vcl_bapi_add_cert_key_pair (ckpair);
4018 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4020 if (vcm->cfg.vpp_app_socket_api)
4022 clib_warning ("not supported");
4023 return VPPCOM_EINVAL;
4025 return vcl_bapi_del_cert_key_pair (ckpair_index);
4029 * fd.io coding-style-patch-verification: ON
4032 * eval: (c-set-style "gnu")