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;
1529 else if (!strcmp (proto_str, "DTLS"))
1530 *proto = VPPCOM_PROTO_DTLS;
1531 else if (!strcmp (proto_str, "dtls"))
1532 *proto = VPPCOM_PROTO_DTLS;
1539 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1542 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1543 vcl_worker_t *wrk = vcl_worker_get_current ();
1544 session_accepted_msg_t accepted_msg;
1545 vcl_session_t *listen_session = 0;
1546 vcl_session_t *client_session = 0;
1547 vcl_session_msg_t *evt;
1553 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1554 if (!listen_session)
1555 return VPPCOM_EBADFD;
1557 listen_session_index = listen_session->session_index;
1558 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1561 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1563 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1564 accept_flags = evt->flags;
1565 accepted_msg = evt->accepted_msg;
1569 is_nonblocking = vcl_session_has_attr (listen_session,
1570 VCL_SESS_ATTR_NONBLOCK);
1573 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1574 return VPPCOM_EAGAIN;
1576 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1577 vcl_worker_flush_mq_events (wrk);
1583 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1584 listen_session_index);
1585 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1586 return VPPCOM_ECONNABORTED;
1588 listen_session = vcl_session_get (wrk, listen_session_index);
1589 client_session = vcl_session_get (wrk, client_session_index);
1591 if (flags & O_NONBLOCK)
1592 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1594 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1595 " flags %d, is_nonblocking %u", listen_session->session_index,
1596 listen_session->vpp_handle, client_session_index,
1597 client_session->vpp_handle, flags,
1598 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1602 ep->is_ip4 = client_session->transport.is_ip4;
1603 ep->port = client_session->transport.rmt_port;
1604 if (client_session->transport.is_ip4)
1605 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1606 sizeof (ip4_address_t));
1608 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1609 sizeof (ip6_address_t));
1612 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1613 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1614 client_session_index, client_session->vpp_handle,
1615 format_ip46_address, &client_session->transport.rmt_ip,
1616 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1617 clib_net_to_host_u16 (client_session->transport.rmt_port),
1618 format_ip46_address, &client_session->transport.lcl_ip,
1619 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1620 clib_net_to_host_u16 (client_session->transport.lcl_port));
1621 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1622 client_session_index);
1625 * Session might have been closed already
1629 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1630 client_session->session_state = VCL_STATE_VPP_CLOSING;
1631 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1632 client_session->session_state = VCL_STATE_DISCONNECT;
1634 return vcl_session_handle (client_session);
1638 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1640 vcl_worker_t *wrk = vcl_worker_get_current ();
1641 vcl_session_t *session = 0;
1645 session = vcl_session_get_w_handle (wrk, session_handle);
1647 return VPPCOM_EBADFD;
1648 session_index = session->session_index;
1650 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1652 VDBG (0, "ERROR: cannot connect epoll session %u!",
1653 session->session_index);
1654 return VPPCOM_EBADFD;
1657 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1659 VDBG (0, "session handle %u [0x%llx]: session already "
1660 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1661 session_handle, session->vpp_handle,
1662 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1663 &session->transport.rmt_ip, session->transport.is_ip4 ?
1664 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1665 clib_net_to_host_u16 (session->transport.rmt_port),
1666 vppcom_proto_str (session->session_type), session->session_state,
1667 vppcom_session_state_str (session->session_state));
1671 /* Attempt to connect a connectionless listener */
1672 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1674 if (session->session_type != VPPCOM_PROTO_UDP)
1675 return VPPCOM_EINVAL;
1676 vcl_send_session_unlisten (wrk, session);
1677 session->session_state = VCL_STATE_CLOSED;
1680 session->transport.is_ip4 = server_ep->is_ip4;
1681 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1682 session->transport.rmt_port = server_ep->port;
1683 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1684 session->flags |= VCL_SESSION_F_CONNECTED;
1686 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1687 "port %d proto %s", session_handle,
1688 vppcom_session_state_str (session->session_state),
1689 session->transport.is_ip4 ? "IPv4" : "IPv6",
1690 format_ip46_address,
1691 &session->transport.rmt_ip, session->transport.is_ip4 ?
1692 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1693 clib_net_to_host_u16 (session->transport.rmt_port),
1694 vppcom_proto_str (session->session_type));
1696 vcl_send_session_connect (wrk, session);
1698 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1700 /* State set to STATE_UPDATED to ensure the session is not assumed
1701 * to be ready and to also allow the app to close it prior to vpp's
1702 * connected reply. */
1703 session->session_state = VCL_STATE_UPDATED;
1704 return VPPCOM_EINPROGRESS;
1708 * Wait for reply from vpp if blocking
1710 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1711 vcm->cfg.session_timeout);
1713 session = vcl_session_get (wrk, session_index);
1714 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1715 session->vpp_handle, rv ? "failed" : "succeeded");
1721 vppcom_session_stream_connect (uint32_t session_handle,
1722 uint32_t parent_session_handle)
1724 vcl_worker_t *wrk = vcl_worker_get_current ();
1725 vcl_session_t *session, *parent_session;
1726 u32 session_index, parent_session_index;
1729 session = vcl_session_get_w_handle (wrk, session_handle);
1731 return VPPCOM_EBADFD;
1732 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1733 if (!parent_session)
1734 return VPPCOM_EBADFD;
1736 session_index = session->session_index;
1737 parent_session_index = parent_session->session_index;
1738 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1740 VDBG (0, "ERROR: cannot connect epoll session %u!",
1741 session->session_index);
1742 return VPPCOM_EBADFD;
1745 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1747 VDBG (0, "session handle %u [0x%llx]: session already "
1748 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1749 session_handle, session->vpp_handle,
1750 parent_session_handle, parent_session->vpp_handle,
1751 vppcom_proto_str (session->session_type), session->session_state,
1752 vppcom_session_state_str (session->session_state));
1756 /* Connect to quic session specifics */
1757 session->transport.is_ip4 = parent_session->transport.is_ip4;
1758 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1759 session->transport.rmt_port = 0;
1760 session->parent_handle = parent_session->vpp_handle;
1762 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1763 session_handle, parent_session_handle, parent_session->vpp_handle);
1766 * Send connect request and wait for reply from vpp
1768 vcl_send_session_connect (wrk, session);
1769 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1770 vcm->cfg.session_timeout);
1772 session->listener_index = parent_session_index;
1773 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1775 parent_session->n_accepted_sessions++;
1777 session = vcl_session_get (wrk, session_index);
1778 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1779 session->vpp_handle, rv ? "failed" : "succeeded");
1785 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1788 vcl_worker_t *wrk = vcl_worker_get_current ();
1789 int rv, n_read = 0, is_nonblocking;
1790 vcl_session_t *s = 0;
1791 svm_fifo_t *rx_fifo;
1796 if (PREDICT_FALSE (!buf))
1797 return VPPCOM_EINVAL;
1799 s = vcl_session_get_w_handle (wrk, session_handle);
1800 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1801 return VPPCOM_EBADFD;
1803 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1805 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1806 s->session_index, s->vpp_handle, s->session_state,
1807 vppcom_session_state_str (s->session_state));
1808 return vcl_session_closed_error (s);
1811 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1812 is_ct = vcl_session_is_ct (s);
1813 mq = wrk->app_event_queue;
1814 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1815 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1817 if (svm_fifo_is_empty_cons (rx_fifo))
1821 if (vcl_session_is_closing (s))
1822 return vcl_session_closing_error (s);
1824 svm_fifo_unset_event (s->rx_fifo);
1825 svm_fifo_unset_event (rx_fifo);
1826 return VPPCOM_EWOULDBLOCK;
1828 while (svm_fifo_is_empty_cons (rx_fifo))
1830 if (vcl_session_is_closing (s))
1831 return vcl_session_closing_error (s);
1834 svm_fifo_unset_event (s->rx_fifo);
1835 svm_fifo_unset_event (rx_fifo);
1837 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1838 vcl_worker_flush_mq_events (wrk);
1845 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1847 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1852 if (svm_fifo_is_empty_cons (rx_fifo))
1855 svm_fifo_unset_event (s->rx_fifo);
1856 svm_fifo_unset_event (rx_fifo);
1857 if (!svm_fifo_is_empty_cons (rx_fifo)
1858 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1860 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1861 e->event_type = SESSION_IO_EVT_RX;
1862 e->session_index = s->session_index;
1865 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1867 /* More data enqueued while reading. Try to drain it
1868 * or fill the buffer. Avoid doing that for dgrams */
1874 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1876 svm_fifo_clear_deq_ntf (rx_fifo);
1877 app_send_io_evt_to_vpp (s->vpp_evt_q,
1878 s->rx_fifo->shr->master_session_index,
1879 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1882 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1883 s->vpp_handle, n_read, rx_fifo);
1889 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1891 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1895 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1897 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1901 vppcom_session_read_segments (uint32_t session_handle,
1902 vppcom_data_segment_t * ds, uint32_t n_segments,
1905 vcl_worker_t *wrk = vcl_worker_get_current ();
1906 int n_read = 0, is_nonblocking;
1907 vcl_session_t *s = 0;
1908 svm_fifo_t *rx_fifo;
1912 s = vcl_session_get_w_handle (wrk, session_handle);
1913 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1914 return VPPCOM_EBADFD;
1916 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1917 return vcl_session_closed_error (s);
1919 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1920 is_ct = vcl_session_is_ct (s);
1921 mq = wrk->app_event_queue;
1922 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1923 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1925 if (svm_fifo_is_empty_cons (rx_fifo))
1930 svm_fifo_unset_event (s->rx_fifo);
1931 svm_fifo_unset_event (rx_fifo);
1932 return VPPCOM_EWOULDBLOCK;
1934 while (svm_fifo_is_empty_cons (rx_fifo))
1936 if (vcl_session_is_closing (s))
1937 return vcl_session_closing_error (s);
1940 svm_fifo_unset_event (s->rx_fifo);
1941 svm_fifo_unset_event (rx_fifo);
1943 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1944 vcl_worker_flush_mq_events (wrk);
1948 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1949 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1951 return VPPCOM_EAGAIN;
1953 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1956 svm_fifo_unset_event (s->rx_fifo);
1957 svm_fifo_unset_event (rx_fifo);
1958 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1959 && svm_fifo_set_event (rx_fifo)
1960 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1963 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1964 e->event_type = SESSION_IO_EVT_RX;
1965 e->session_index = s->session_index;
1969 s->rx_bytes_pending += n_read;
1974 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
1976 vcl_worker_t *wrk = vcl_worker_get_current ();
1980 s = vcl_session_get_w_handle (wrk, session_handle);
1981 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1984 is_ct = vcl_session_is_ct (s);
1985 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
1987 ASSERT (s->rx_bytes_pending < n_bytes);
1988 s->rx_bytes_pending -= n_bytes;
1992 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
1994 u32 max_enq = svm_fifo_max_enqueue_prod (f);
1996 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2002 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2003 size_t n, u8 is_flush, u8 is_dgram)
2005 int n_write, is_nonblocking;
2006 session_evt_type_t et;
2007 svm_fifo_t *tx_fifo;
2011 if (PREDICT_FALSE (!buf || n == 0))
2012 return VPPCOM_EINVAL;
2014 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2016 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2017 " session!", s->session_index, s->vpp_handle);
2018 return VPPCOM_EBADFD;
2021 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2023 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2024 s->session_index, s->vpp_handle, s->session_state,
2025 vppcom_session_state_str (s->session_state));
2026 return vcl_session_closed_error (s);;
2029 is_ct = vcl_session_is_ct (s);
2030 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2031 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2033 mq = wrk->app_event_queue;
2034 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2038 return VPPCOM_EWOULDBLOCK;
2040 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2042 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2043 if (vcl_session_is_closing (s))
2044 return vcl_session_closing_error (s);
2046 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2047 vcl_worker_flush_mq_events (wrk);
2051 et = SESSION_IO_EVT_TX;
2052 if (is_flush && !is_ct)
2053 et = SESSION_IO_EVT_TX_FLUSH;
2056 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2057 s->vpp_evt_q, buf, n, et,
2058 0 /* do_evt */ , SVM_Q_WAIT);
2060 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2061 0 /* do_evt */ , SVM_Q_WAIT);
2063 if (svm_fifo_set_event (s->tx_fifo))
2064 app_send_io_evt_to_vpp (
2065 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2067 /* The underlying fifo segment can run out of memory */
2068 if (PREDICT_FALSE (n_write < 0))
2069 return VPPCOM_EAGAIN;
2071 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2072 s->vpp_handle, n_write);
2078 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2080 vcl_worker_t *wrk = vcl_worker_get_current ();
2083 s = vcl_session_get_w_handle (wrk, session_handle);
2084 if (PREDICT_FALSE (!s))
2085 return VPPCOM_EBADFD;
2087 return vppcom_session_write_inline (wrk, s, buf, n,
2088 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2092 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2094 vcl_worker_t *wrk = vcl_worker_get_current ();
2097 s = vcl_session_get_w_handle (wrk, session_handle);
2098 if (PREDICT_FALSE (!s))
2099 return VPPCOM_EBADFD;
2101 return vppcom_session_write_inline (wrk, s, buf, n,
2102 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2105 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2106 if (PREDICT_FALSE (!_s->rx_fifo)) \
2108 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2110 if (!vcl_session_is_ct (_s)) \
2112 svm_fifo_unset_event (_s->rx_fifo); \
2113 if (svm_fifo_is_empty (_s->rx_fifo)) \
2116 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2118 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2119 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2125 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2126 unsigned long n_bits, unsigned long *read_map,
2127 unsigned long *write_map,
2128 unsigned long *except_map, u32 * bits_set)
2130 session_disconnected_msg_t *disconnected_msg;
2131 session_connected_msg_t *connected_msg;
2135 switch (e->event_type)
2137 case SESSION_IO_EVT_RX:
2138 sid = e->session_index;
2139 s = vcl_session_get (wrk, sid);
2140 if (!s || !vcl_session_is_open (s))
2142 vcl_fifo_rx_evt_valid_or_break (s);
2143 if (sid < n_bits && read_map)
2145 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2149 case SESSION_IO_EVT_TX:
2150 sid = e->session_index;
2151 s = vcl_session_get (wrk, sid);
2152 if (!s || !vcl_session_is_open (s))
2154 if (sid < n_bits && write_map)
2156 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2160 case SESSION_CTRL_EVT_ACCEPTED:
2162 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2164 s = vcl_session_get (wrk, e->session_index);
2167 sid = s->session_index;
2168 if (sid < n_bits && read_map)
2170 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2174 case SESSION_CTRL_EVT_CONNECTED:
2177 connected_msg = (session_connected_msg_t *) e->data;
2178 sid = vcl_session_connected_handler (wrk, connected_msg);
2181 sid = e->session_index;
2182 if (sid == VCL_INVALID_SESSION_INDEX)
2184 if (sid < n_bits && write_map)
2186 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2190 case SESSION_CTRL_EVT_DISCONNECTED:
2191 disconnected_msg = (session_disconnected_msg_t *) e->data;
2192 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2195 sid = s->session_index;
2196 if (sid < n_bits && except_map)
2198 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2202 case SESSION_CTRL_EVT_RESET:
2203 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2204 if (sid < n_bits && except_map)
2206 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2210 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2211 vcl_session_unlisten_reply_handler (wrk, e->data);
2213 case SESSION_CTRL_EVT_MIGRATED:
2214 vcl_session_migrated_handler (wrk, e->data);
2216 case SESSION_CTRL_EVT_CLEANUP:
2217 vcl_session_cleanup_handler (wrk, e->data);
2219 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2220 vcl_session_worker_update_reply_handler (wrk, e->data);
2222 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2223 vcl_session_req_worker_update_handler (wrk, e->data);
2225 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2226 vcl_session_app_add_segment_handler (wrk, e->data);
2228 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2229 vcl_session_app_del_segment_handler (wrk, e->data);
2231 case SESSION_CTRL_EVT_APP_WRK_RPC:
2232 vcl_worker_rpc_handler (wrk, e->data);
2235 clib_warning ("unhandled: %u", e->event_type);
2241 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2242 unsigned long n_bits, unsigned long *read_map,
2243 unsigned long *write_map, unsigned long *except_map,
2244 double time_to_wait, u32 * bits_set)
2246 svm_msg_q_msg_t *msg;
2250 if (svm_msg_q_is_empty (mq))
2257 else if (time_to_wait < 0)
2258 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2261 if (svm_msg_q_timedwait (mq, time_to_wait))
2265 vcl_mq_dequeue_batch (wrk, mq, ~0);
2267 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2269 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2270 e = svm_msg_q_msg_data (mq, msg);
2271 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2272 except_map, bits_set);
2273 svm_msg_q_free_msg (mq, msg);
2275 vec_reset_length (wrk->mq_msg_vector);
2276 vcl_handle_pending_wrk_updates (wrk);
2281 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2282 vcl_si_set * read_map, vcl_si_set * write_map,
2283 vcl_si_set * except_map, double time_to_wait,
2286 double wait = 0, start = 0;
2290 wait = time_to_wait;
2291 start = clib_time_now (&wrk->clib_time);
2296 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2297 write_map, except_map, wait, bits_set);
2303 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2311 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2312 vcl_si_set * read_map, vcl_si_set * write_map,
2313 vcl_si_set * except_map, double time_to_wait,
2316 vcl_mq_evt_conn_t *mqc;
2317 int __clib_unused n_read;
2321 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2322 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2323 vec_len (wrk->mq_events), time_to_wait);
2324 for (i = 0; i < n_mq_evts; i++)
2326 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2327 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2328 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2329 except_map, 0, bits_set);
2332 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2336 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2337 vcl_si_set * except_map, double time_to_wait)
2339 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2340 vcl_worker_t *wrk = vcl_worker_get_current ();
2341 vcl_session_t *s = 0;
2344 if (n_bits && read_map)
2346 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2347 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2348 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2349 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2351 if (n_bits && write_map)
2353 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2354 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2355 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2356 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2358 if (n_bits && except_map)
2360 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2361 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2362 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2363 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2372 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2374 if (!(s = vcl_session_get (wrk, sid)))
2376 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2381 if (vcl_session_write_ready (s))
2383 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2388 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2389 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2397 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2399 if (!(s = vcl_session_get (wrk, sid)))
2401 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2406 if (vcl_session_read_ready (s))
2408 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2415 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2417 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2418 read_map, write_map, except_map, &bits_set);
2420 vec_reset_length (wrk->unhandled_evts_vector);
2422 if (vcm->cfg.use_mq_eventfd)
2423 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2424 time_to_wait, &bits_set);
2426 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2427 time_to_wait, &bits_set);
2433 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2435 vppcom_epoll_t *vep;
2436 u32 sh = vep_handle;
2439 if (VPPCOM_DEBUG <= 2)
2442 s = vcl_session_get_w_handle (wrk, vep_handle);
2443 if (PREDICT_FALSE (!s))
2445 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2448 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2450 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2454 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2457 " is_vep_session = %u\n"
2458 " next_sh = 0x%x (%u)\n"
2459 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2460 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2462 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2464 s = vcl_session_get_w_handle (wrk, sh);
2465 if (PREDICT_FALSE (!s))
2467 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2470 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2472 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2474 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2476 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2480 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2481 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2482 sh, s->vep.vep_sh, vep_handle);
2483 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2485 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2487 " next_sh = 0x%x (%u)\n"
2488 " prev_sh = 0x%x (%u)\n"
2489 " vep_sh = 0x%x (%u)\n"
2490 " ev.events = 0x%x\n"
2491 " ev.data.u64 = 0x%llx\n"
2494 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2495 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2496 vep->ev.data.u64, vep->et_mask);
2501 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2505 vppcom_epoll_create (void)
2507 vcl_worker_t *wrk = vcl_worker_get_current ();
2508 vcl_session_t *vep_session;
2510 vep_session = vcl_session_alloc (wrk);
2512 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2513 vep_session->vep.vep_sh = ~0;
2514 vep_session->vep.next_sh = ~0;
2515 vep_session->vep.prev_sh = ~0;
2516 vep_session->vpp_handle = ~0;
2518 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2519 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2521 return vcl_session_handle (vep_session);
2525 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2526 struct epoll_event *event)
2528 vcl_worker_t *wrk = vcl_worker_get_current ();
2529 vcl_session_t *vep_session;
2534 if (vep_handle == session_handle)
2536 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2537 return VPPCOM_EINVAL;
2540 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2541 if (PREDICT_FALSE (!vep_session))
2543 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2544 return VPPCOM_EBADFD;
2546 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2548 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2549 return VPPCOM_EINVAL;
2552 ASSERT (vep_session->vep.vep_sh == ~0);
2553 ASSERT (vep_session->vep.prev_sh == ~0);
2555 s = vcl_session_get_w_handle (wrk, session_handle);
2556 if (PREDICT_FALSE (!s))
2558 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2559 return VPPCOM_EBADFD;
2561 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2563 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2564 return VPPCOM_EINVAL;
2570 if (PREDICT_FALSE (!event))
2572 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2573 return VPPCOM_EINVAL;
2575 if (vep_session->vep.next_sh != ~0)
2577 vcl_session_t *next_session;
2578 next_session = vcl_session_get_w_handle (wrk,
2579 vep_session->vep.next_sh);
2580 if (PREDICT_FALSE (!next_session))
2582 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2583 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2584 return VPPCOM_EBADFD;
2586 ASSERT (next_session->vep.prev_sh == vep_handle);
2587 next_session->vep.prev_sh = session_handle;
2589 s->vep.next_sh = vep_session->vep.next_sh;
2590 s->vep.prev_sh = vep_handle;
2591 s->vep.vep_sh = vep_handle;
2592 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2594 s->flags &= ~VCL_SESSION_F_IS_VEP;
2595 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2596 vep_session->vep.next_sh = session_handle;
2598 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2599 if (txf && (event->events & EPOLLOUT))
2600 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2602 /* Generate EPOLLOUT if tx fifo not full */
2603 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2605 session_event_t e = { 0 };
2606 e.event_type = SESSION_IO_EVT_TX;
2607 e.session_index = s->session_index;
2608 vec_add1 (wrk->unhandled_evts_vector, e);
2610 /* Generate EPOLLIN if rx fifo has data */
2611 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2613 session_event_t e = { 0 };
2614 e.event_type = SESSION_IO_EVT_RX;
2615 e.session_index = s->session_index;
2616 vec_add1 (wrk->unhandled_evts_vector, e);
2618 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2619 vep_handle, session_handle, event->events, event->data.u64);
2620 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2624 if (PREDICT_FALSE (!event))
2626 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2630 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2632 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2636 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2638 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2639 session_handle, s->vep.vep_sh, vep_handle);
2644 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2645 if ((event->events & EPOLLOUT) &&
2646 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2648 session_event_t e = { 0 };
2649 e.event_type = SESSION_IO_EVT_TX;
2650 e.session_index = s->session_index;
2651 vec_add1 (wrk->unhandled_evts_vector, e);
2653 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2655 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2656 if (event->events & EPOLLOUT)
2657 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2659 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2660 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2661 vep_handle, session_handle, event->events, event->data.u64);
2665 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2667 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2671 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2673 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2674 session_handle, s->vep.vep_sh, vep_handle);
2679 if (s->vep.prev_sh == vep_handle)
2680 vep_session->vep.next_sh = s->vep.next_sh;
2683 vcl_session_t *prev_session;
2684 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2685 if (PREDICT_FALSE (!prev_session))
2687 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2688 s->vep.prev_sh, session_handle);
2689 return VPPCOM_EBADFD;
2691 ASSERT (prev_session->vep.next_sh == session_handle);
2692 prev_session->vep.next_sh = s->vep.next_sh;
2694 if (s->vep.next_sh != ~0)
2696 vcl_session_t *next_session;
2697 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2698 if (PREDICT_FALSE (!next_session))
2700 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2701 s->vep.next_sh, session_handle);
2702 return VPPCOM_EBADFD;
2704 ASSERT (next_session->vep.prev_sh == session_handle);
2705 next_session->vep.prev_sh = s->vep.prev_sh;
2708 memset (&s->vep, 0, sizeof (s->vep));
2709 s->vep.next_sh = ~0;
2710 s->vep.prev_sh = ~0;
2712 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2714 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2716 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2718 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2720 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2724 VDBG (0, "Invalid operation (%d)!", op);
2728 vep_verify_epoll_chain (wrk, vep_handle);
2735 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2736 struct epoll_event *events, u32 * num_ev)
2738 session_disconnected_msg_t *disconnected_msg;
2739 session_connected_msg_t *connected_msg;
2740 u32 sid = ~0, session_events;
2741 u64 session_evt_data = ~0;
2745 switch (e->event_type)
2747 case SESSION_IO_EVT_RX:
2748 sid = e->session_index;
2749 s = vcl_session_get (wrk, sid);
2750 if (vcl_session_is_closed (s))
2752 vcl_fifo_rx_evt_valid_or_break (s);
2753 session_events = s->vep.ev.events;
2754 if (!(EPOLLIN & s->vep.ev.events)
2755 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2758 events[*num_ev].events |= EPOLLIN;
2759 session_evt_data = s->vep.ev.data.u64;
2760 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2762 case SESSION_IO_EVT_TX:
2763 sid = e->session_index;
2764 s = vcl_session_get (wrk, sid);
2765 if (vcl_session_is_closed (s))
2767 session_events = s->vep.ev.events;
2768 if (!(EPOLLOUT & session_events))
2771 events[*num_ev].events |= EPOLLOUT;
2772 session_evt_data = s->vep.ev.data.u64;
2773 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2774 s->ct_tx_fifo : s->tx_fifo);
2776 case SESSION_CTRL_EVT_ACCEPTED:
2778 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2780 s = vcl_session_get (wrk, e->session_index);
2783 session_events = s->vep.ev.events;
2784 sid = s->session_index;
2785 if (!(EPOLLIN & session_events))
2788 events[*num_ev].events |= EPOLLIN;
2789 session_evt_data = s->vep.ev.data.u64;
2791 case SESSION_CTRL_EVT_CONNECTED:
2794 connected_msg = (session_connected_msg_t *) e->data;
2795 sid = vcl_session_connected_handler (wrk, connected_msg);
2798 sid = e->session_index;
2799 s = vcl_session_get (wrk, sid);
2800 if (vcl_session_is_closed (s))
2802 session_events = s->vep.ev.events;
2803 /* Generate EPOLLOUT because there's no connected event */
2804 if (!(EPOLLOUT & session_events))
2807 events[*num_ev].events |= EPOLLOUT;
2808 session_evt_data = s->vep.ev.data.u64;
2809 if (s->session_state == VCL_STATE_DETACHED)
2810 events[*num_ev].events |= EPOLLHUP;
2812 case SESSION_CTRL_EVT_DISCONNECTED:
2813 disconnected_msg = (session_disconnected_msg_t *) e->data;
2814 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2815 if (vcl_session_is_closed (s))
2817 sid = s->session_index;
2818 session_events = s->vep.ev.events;
2820 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2821 session_evt_data = s->vep.ev.data.u64;
2823 case SESSION_CTRL_EVT_RESET:
2824 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2825 s = vcl_session_get (wrk, sid);
2826 if (vcl_session_is_closed (s))
2828 session_events = s->vep.ev.events;
2830 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2831 session_evt_data = s->vep.ev.data.u64;
2833 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2834 vcl_session_unlisten_reply_handler (wrk, e->data);
2836 case SESSION_CTRL_EVT_MIGRATED:
2837 vcl_session_migrated_handler (wrk, e->data);
2839 case SESSION_CTRL_EVT_CLEANUP:
2840 vcl_session_cleanup_handler (wrk, e->data);
2842 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2843 vcl_session_req_worker_update_handler (wrk, e->data);
2845 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2846 vcl_session_worker_update_reply_handler (wrk, e->data);
2848 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2849 vcl_session_app_add_segment_handler (wrk, e->data);
2851 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2852 vcl_session_app_del_segment_handler (wrk, e->data);
2854 case SESSION_CTRL_EVT_APP_WRK_RPC:
2855 vcl_worker_rpc_handler (wrk, e->data);
2858 VDBG (0, "unhandled: %u", e->event_type);
2864 events[*num_ev].data.u64 = session_evt_data;
2865 if (EPOLLONESHOT & session_events)
2867 s = vcl_session_get (wrk, sid);
2868 s->vep.ev.events = 0;
2875 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2876 struct epoll_event *events, u32 maxevents,
2877 double wait_for_time, u32 * num_ev)
2879 svm_msg_q_msg_t *msg;
2883 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2884 goto handle_dequeued;
2886 if (svm_msg_q_is_empty (mq))
2890 else if (wait_for_time < 0)
2891 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2894 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2898 ASSERT (maxevents > *num_ev);
2899 vcl_mq_dequeue_batch (wrk, mq, ~0);
2902 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2904 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2905 e = svm_msg_q_msg_data (mq, msg);
2906 if (*num_ev < maxevents)
2907 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2909 vcl_handle_mq_event (wrk, e);
2910 svm_msg_q_free_msg (mq, msg);
2912 vec_reset_length (wrk->mq_msg_vector);
2913 vcl_handle_pending_wrk_updates (wrk);
2918 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2919 int maxevents, u32 n_evts, double wait_for_time)
2921 double wait = 0, start = 0, now;
2925 wait = wait_for_time;
2926 start = clib_time_now (&wrk->clib_time);
2931 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2938 now = clib_time_now (&wrk->clib_time);
2939 wait -= (now - start) * 1e3;
2948 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2949 int maxevents, u32 n_evts, double wait_for_time)
2951 double wait = 0, start = 0, now;
2952 int __clib_unused n_read;
2953 vcl_mq_evt_conn_t *mqc;
2957 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2960 wait = wait_for_time;
2961 start = clib_time_now (&wrk->clib_time);
2966 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2967 vec_len (wrk->mq_events), wait);
2970 VDBG (0, "epoll_wait error %u", errno);
2974 for (i = 0; i < n_mq_evts; i++)
2976 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2977 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2978 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
2987 now = clib_time_now (&wrk->clib_time);
2988 wait -= (now - start) * 1e3;
2997 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
2998 int maxevents, double wait_for_time)
3000 vcl_worker_t *wrk = vcl_worker_get_current ();
3001 vcl_session_t *vep_session;
3005 if (PREDICT_FALSE (maxevents <= 0))
3007 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3008 return VPPCOM_EINVAL;
3011 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3013 return VPPCOM_EBADFD;
3015 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3017 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3018 return VPPCOM_EINVAL;
3021 memset (events, 0, sizeof (*events) * maxevents);
3023 if (vec_len (wrk->unhandled_evts_vector))
3025 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3027 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3029 if (n_evts == maxevents)
3031 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3035 vec_reset_length (wrk->unhandled_evts_vector);
3038 if (vcm->cfg.use_mq_eventfd)
3039 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3042 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3047 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3048 void *buffer, uint32_t * buflen)
3050 vcl_worker_t *wrk = vcl_worker_get_current ();
3051 u32 *flags = buffer, tmp_flags = 0;
3052 vppcom_endpt_t *ep = buffer;
3053 vcl_session_t *session;
3056 session = vcl_session_get_w_handle (wrk, session_handle);
3058 return VPPCOM_EBADFD;
3062 case VPPCOM_ATTR_GET_NREAD:
3063 rv = vcl_session_read_ready (session);
3064 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3068 case VPPCOM_ATTR_GET_NWRITE:
3069 rv = vcl_session_write_ready (session);
3070 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3074 case VPPCOM_ATTR_GET_FLAGS:
3075 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3079 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3081 *buflen = sizeof (*flags);
3082 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3083 "is_nonblocking = %u", session_handle, *flags,
3084 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3090 case VPPCOM_ATTR_SET_FLAGS:
3091 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3093 if (*flags & O_NONBLOCK)
3094 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3096 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3098 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3099 " is_nonblocking = %u", session_handle, *flags,
3100 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3106 case VPPCOM_ATTR_GET_PEER_ADDR:
3107 if (PREDICT_TRUE (buffer && buflen &&
3108 (*buflen >= sizeof (*ep)) && ep->ip))
3110 ep->is_ip4 = session->transport.is_ip4;
3111 ep->port = session->transport.rmt_port;
3112 if (session->transport.is_ip4)
3113 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3114 sizeof (ip4_address_t));
3116 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3117 sizeof (ip6_address_t));
3118 *buflen = sizeof (*ep);
3119 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3120 "addr = %U, port %u", session_handle, ep->is_ip4,
3121 format_ip46_address, &session->transport.rmt_ip,
3122 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3123 clib_net_to_host_u16 (ep->port));
3129 case VPPCOM_ATTR_GET_LCL_ADDR:
3130 if (PREDICT_TRUE (buffer && buflen &&
3131 (*buflen >= sizeof (*ep)) && ep->ip))
3133 ep->is_ip4 = session->transport.is_ip4;
3134 ep->port = session->transport.lcl_port;
3135 if (session->transport.is_ip4)
3136 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3137 sizeof (ip4_address_t));
3139 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3140 sizeof (ip6_address_t));
3141 *buflen = sizeof (*ep);
3142 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3143 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3144 &session->transport.lcl_ip,
3145 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3146 clib_net_to_host_u16 (ep->port));
3152 case VPPCOM_ATTR_SET_LCL_ADDR:
3153 if (PREDICT_TRUE (buffer && buflen &&
3154 (*buflen >= sizeof (*ep)) && ep->ip))
3156 session->transport.is_ip4 = ep->is_ip4;
3157 session->transport.lcl_port = ep->port;
3158 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3159 *buflen = sizeof (*ep);
3160 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3161 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3162 &session->transport.lcl_ip,
3163 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3164 clib_net_to_host_u16 (ep->port));
3170 case VPPCOM_ATTR_GET_LIBC_EPFD:
3171 rv = session->libc_epfd;
3172 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3175 case VPPCOM_ATTR_SET_LIBC_EPFD:
3176 if (PREDICT_TRUE (buffer && buflen &&
3177 (*buflen == sizeof (session->libc_epfd))))
3179 session->libc_epfd = *(int *) buffer;
3180 *buflen = sizeof (session->libc_epfd);
3182 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3183 session->libc_epfd, *buflen);
3189 case VPPCOM_ATTR_GET_PROTOCOL:
3190 if (buffer && buflen && (*buflen >= sizeof (int)))
3192 *(int *) buffer = session->session_type;
3193 *buflen = sizeof (int);
3195 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3196 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3202 case VPPCOM_ATTR_GET_LISTEN:
3203 if (buffer && buflen && (*buflen >= sizeof (int)))
3205 *(int *) buffer = vcl_session_has_attr (session,
3206 VCL_SESS_ATTR_LISTEN);
3207 *buflen = sizeof (int);
3209 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3216 case VPPCOM_ATTR_GET_ERROR:
3217 if (buffer && buflen && (*buflen >= sizeof (int)))
3219 *(int *) buffer = 0;
3220 *buflen = sizeof (int);
3222 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3223 *(int *) buffer, *buflen);
3229 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3230 if (buffer && buflen && (*buflen >= sizeof (u32)))
3234 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3236 svm_fifo_size (session->tx_fifo) :
3237 vcm->cfg.tx_fifo_size);
3238 *buflen = sizeof (u32);
3240 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3241 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3248 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3249 if (buffer && buflen && (*buflen == sizeof (u32)))
3252 session->sndbuf_size = *(u32 *) buffer;
3253 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3254 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3261 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3262 if (buffer && buflen && (*buflen >= sizeof (u32)))
3266 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3268 svm_fifo_size (session->rx_fifo) :
3269 vcm->cfg.rx_fifo_size);
3270 *buflen = sizeof (u32);
3272 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3273 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3279 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3280 if (buffer && buflen && (*buflen == sizeof (u32)))
3283 session->rcvbuf_size = *(u32 *) buffer;
3284 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3285 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3292 case VPPCOM_ATTR_GET_REUSEADDR:
3293 if (buffer && buflen && (*buflen >= sizeof (int)))
3296 *(int *) buffer = vcl_session_has_attr (session,
3297 VCL_SESS_ATTR_REUSEADDR);
3298 *buflen = sizeof (int);
3300 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3301 *(int *) buffer, *buflen);
3307 case VPPCOM_ATTR_SET_REUSEADDR:
3308 if (buffer && buflen && (*buflen == sizeof (int)) &&
3309 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3312 if (*(int *) buffer)
3313 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3315 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3317 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3318 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3325 case VPPCOM_ATTR_GET_REUSEPORT:
3326 if (buffer && buflen && (*buflen >= sizeof (int)))
3329 *(int *) buffer = vcl_session_has_attr (session,
3330 VCL_SESS_ATTR_REUSEPORT);
3331 *buflen = sizeof (int);
3333 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3334 *(int *) buffer, *buflen);
3340 case VPPCOM_ATTR_SET_REUSEPORT:
3341 if (buffer && buflen && (*buflen == sizeof (int)) &&
3342 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3345 if (*(int *) buffer)
3346 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3348 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3350 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3351 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3358 case VPPCOM_ATTR_GET_BROADCAST:
3359 if (buffer && buflen && (*buflen >= sizeof (int)))
3362 *(int *) buffer = vcl_session_has_attr (session,
3363 VCL_SESS_ATTR_BROADCAST);
3364 *buflen = sizeof (int);
3366 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3367 *(int *) buffer, *buflen);
3373 case VPPCOM_ATTR_SET_BROADCAST:
3374 if (buffer && buflen && (*buflen == sizeof (int)))
3377 if (*(int *) buffer)
3378 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3380 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3382 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3383 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3390 case VPPCOM_ATTR_GET_V6ONLY:
3391 if (buffer && buflen && (*buflen >= sizeof (int)))
3394 *(int *) buffer = vcl_session_has_attr (session,
3395 VCL_SESS_ATTR_V6ONLY);
3396 *buflen = sizeof (int);
3398 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3399 *(int *) buffer, *buflen);
3405 case VPPCOM_ATTR_SET_V6ONLY:
3406 if (buffer && buflen && (*buflen == sizeof (int)))
3409 if (*(int *) buffer)
3410 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3412 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3414 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3415 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3422 case VPPCOM_ATTR_GET_KEEPALIVE:
3423 if (buffer && buflen && (*buflen >= sizeof (int)))
3426 *(int *) buffer = vcl_session_has_attr (session,
3427 VCL_SESS_ATTR_KEEPALIVE);
3428 *buflen = sizeof (int);
3430 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3431 *(int *) buffer, *buflen);
3437 case VPPCOM_ATTR_SET_KEEPALIVE:
3438 if (buffer && buflen && (*buflen == sizeof (int)))
3441 if (*(int *) buffer)
3442 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3444 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3446 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3447 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3454 case VPPCOM_ATTR_GET_TCP_NODELAY:
3455 if (buffer && buflen && (*buflen >= sizeof (int)))
3458 *(int *) buffer = vcl_session_has_attr (session,
3459 VCL_SESS_ATTR_TCP_NODELAY);
3460 *buflen = sizeof (int);
3462 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3463 *(int *) buffer, *buflen);
3469 case VPPCOM_ATTR_SET_TCP_NODELAY:
3470 if (buffer && buflen && (*buflen == sizeof (int)))
3473 if (*(int *) buffer)
3474 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3476 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3478 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3479 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3486 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3487 if (buffer && buflen && (*buflen >= sizeof (int)))
3490 *(int *) buffer = vcl_session_has_attr (session,
3491 VCL_SESS_ATTR_TCP_KEEPIDLE);
3492 *buflen = sizeof (int);
3494 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3495 *(int *) buffer, *buflen);
3501 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3502 if (buffer && buflen && (*buflen == sizeof (int)))
3505 if (*(int *) buffer)
3506 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3508 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3510 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3511 vcl_session_has_attr (session,
3512 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3518 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3519 if (buffer && buflen && (*buflen >= sizeof (int)))
3522 *(int *) buffer = vcl_session_has_attr (session,
3523 VCL_SESS_ATTR_TCP_KEEPINTVL);
3524 *buflen = sizeof (int);
3526 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3527 *(int *) buffer, *buflen);
3533 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3534 if (buffer && buflen && (*buflen == sizeof (int)))
3537 if (*(int *) buffer)
3538 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3540 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3542 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3543 vcl_session_has_attr (session,
3544 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3550 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3551 if (buffer && buflen && (*buflen >= sizeof (u32)))
3554 *(u32 *) buffer = session->user_mss;
3555 *buflen = sizeof (int);
3557 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3558 *(int *) buffer, *buflen);
3564 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3565 if (buffer && buflen && (*buflen == sizeof (u32)))
3568 session->user_mss = *(u32 *) buffer;
3570 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3571 session->user_mss, *buflen);
3577 case VPPCOM_ATTR_SET_SHUT:
3578 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3579 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3580 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3581 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3584 case VPPCOM_ATTR_GET_SHUT:
3585 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3587 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3590 *(int *) buffer = SHUT_RD;
3591 else if (tmp_flags == 2)
3592 *(int *) buffer = SHUT_WR;
3593 else if (tmp_flags == 3)
3594 *(int *) buffer = SHUT_RDWR;
3595 *buflen = sizeof (int);
3598 case VPPCOM_ATTR_SET_CONNECTED:
3599 session->flags |= VCL_SESSION_F_CONNECTED;
3602 case VPPCOM_ATTR_SET_CKPAIR:
3603 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
3604 !vcl_session_has_crypto (session))
3609 session->ckpair_index = *(uint32_t *) buffer;
3612 case VPPCOM_ATTR_SET_VRF:
3613 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3618 session->vrf = *(u32 *) buffer;
3621 case VPPCOM_ATTR_GET_VRF:
3622 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3627 *(u32 *) buffer = session->vrf;
3628 *buflen = sizeof (u32);
3640 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3641 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3643 vcl_worker_t *wrk = vcl_worker_get_current ();
3644 vcl_session_t *session;
3648 rv = vppcom_session_read (session_handle, buffer, buflen);
3649 else if (flags & MSG_PEEK)
3650 rv = vppcom_session_peek (session_handle, buffer, buflen);
3653 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3654 return VPPCOM_EAFNOSUPPORT;
3659 session = vcl_session_get_w_handle (wrk, session_handle);
3660 if (session->transport.is_ip4)
3661 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3662 sizeof (ip4_address_t));
3664 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3665 sizeof (ip6_address_t));
3666 ep->is_ip4 = session->transport.is_ip4;
3667 ep->port = session->transport.rmt_port;
3674 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3675 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3677 vcl_worker_t *wrk = vcl_worker_get_current ();
3680 s = vcl_session_get_w_handle (wrk, session_handle);
3682 return VPPCOM_EBADFD;
3685 return VPPCOM_EINVAL;
3689 if (!vcl_session_is_cl (s))
3690 return VPPCOM_EINVAL;
3692 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3693 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3695 u32 session_index = s->session_index;
3696 f64 timeout = vcm->cfg.session_timeout;
3699 vcl_send_session_connect (wrk, s);
3700 rv = vppcom_wait_for_session_state_change (session_index,
3705 s = vcl_session_get (wrk, session_index);
3708 s->transport.is_ip4 = ep->is_ip4;
3709 s->transport.rmt_port = ep->port;
3710 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3715 // TBD check the flags and do the right thing
3716 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3719 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3720 s->is_dgram ? 1 : 0));
3724 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3726 vcl_worker_t *wrk = vcl_worker_get_current ();
3727 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3728 u32 i, keep_trying = 1;
3729 svm_msg_q_msg_t msg;
3733 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3736 return VPPCOM_EFAULT;
3740 vcl_session_t *session;
3742 /* Dequeue all events and drop all unhandled io events */
3743 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3745 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3746 vcl_handle_mq_event (wrk, e);
3747 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3749 vec_reset_length (wrk->unhandled_evts_vector);
3751 for (i = 0; i < n_sids; i++)
3753 session = vcl_session_get (wrk, vp[i].sh);
3756 vp[i].revents = POLLHUP;
3763 if (POLLIN & vp[i].events)
3765 rv = vcl_session_read_ready (session);
3768 vp[i].revents |= POLLIN;
3775 case VPPCOM_ECONNRESET:
3776 vp[i].revents = POLLHUP;
3780 vp[i].revents = POLLERR;
3787 if (POLLOUT & vp[i].events)
3789 rv = vcl_session_write_ready (session);
3792 vp[i].revents |= POLLOUT;
3799 case VPPCOM_ECONNRESET:
3800 vp[i].revents = POLLHUP;
3804 vp[i].revents = POLLERR;
3811 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3813 vp[i].revents = POLLNVAL;
3817 if (wait_for_time != -1)
3818 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3820 while ((num_ev == 0) && keep_trying);
3826 vppcom_mq_epoll_fd (void)
3828 vcl_worker_t *wrk = vcl_worker_get_current ();
3829 return wrk->mqs_epfd;
3833 vppcom_session_index (vcl_session_handle_t session_handle)
3835 return session_handle & 0xFFFFFF;
3839 vppcom_session_worker (vcl_session_handle_t session_handle)
3841 return session_handle >> 24;
3845 vppcom_worker_register (void)
3847 if (!vcl_worker_alloc_and_init ())
3848 return VPPCOM_EEXIST;
3850 if (vcl_worker_register_with_vpp ())
3851 return VPPCOM_EEXIST;
3857 vppcom_worker_unregister (void)
3859 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3860 vcl_set_worker_index (~0);
3864 vppcom_worker_index_set (int index)
3866 vcl_set_worker_index (index);
3870 vppcom_worker_index (void)
3872 return vcl_get_worker_index ();
3876 vppcom_worker_mqs_epfd (void)
3878 vcl_worker_t *wrk = vcl_worker_get_current ();
3879 if (!vcm->cfg.use_mq_eventfd)
3881 return wrk->mqs_epfd;
3885 vppcom_session_is_connectable_listener (uint32_t session_handle)
3887 vcl_session_t *session;
3888 vcl_worker_t *wrk = vcl_worker_get_current ();
3889 session = vcl_session_get_w_handle (wrk, session_handle);
3891 return VPPCOM_EBADFD;
3892 return vcl_session_is_connectable_listener (wrk, session);
3896 vppcom_session_listener (uint32_t session_handle)
3898 vcl_worker_t *wrk = vcl_worker_get_current ();
3899 vcl_session_t *listen_session, *session;
3900 session = vcl_session_get_w_handle (wrk, session_handle);
3902 return VPPCOM_EBADFD;
3903 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3904 return VPPCOM_EBADFD;
3905 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3906 if (!listen_session)
3907 return VPPCOM_EBADFD;
3908 return vcl_session_handle (listen_session);
3912 vppcom_session_n_accepted (uint32_t session_handle)
3914 vcl_worker_t *wrk = vcl_worker_get_current ();
3915 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3917 return VPPCOM_EBADFD;
3918 return session->n_accepted_sessions;
3922 vppcom_proto_str (vppcom_proto_t proto)
3924 char const *proto_str;
3928 case VPPCOM_PROTO_TCP:
3931 case VPPCOM_PROTO_UDP:
3934 case VPPCOM_PROTO_TLS:
3937 case VPPCOM_PROTO_QUIC:
3940 case VPPCOM_PROTO_DTLS:
3944 proto_str = "UNKNOWN";
3951 vppcom_retval_str (int retval)
3962 st = "VPPCOM_EAGAIN";
3966 st = "VPPCOM_EFAULT";
3970 st = "VPPCOM_ENOMEM";
3974 st = "VPPCOM_EINVAL";
3978 st = "VPPCOM_EBADFD";
3981 case VPPCOM_EAFNOSUPPORT:
3982 st = "VPPCOM_EAFNOSUPPORT";
3985 case VPPCOM_ECONNABORTED:
3986 st = "VPPCOM_ECONNABORTED";
3989 case VPPCOM_ECONNRESET:
3990 st = "VPPCOM_ECONNRESET";
3993 case VPPCOM_ENOTCONN:
3994 st = "VPPCOM_ENOTCONN";
3997 case VPPCOM_ECONNREFUSED:
3998 st = "VPPCOM_ECONNREFUSED";
4001 case VPPCOM_ETIMEDOUT:
4002 st = "VPPCOM_ETIMEDOUT";
4006 st = "UNKNOWN_STATE";
4014 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4016 if (vcm->cfg.vpp_app_socket_api)
4018 clib_warning ("not supported");
4019 return VPPCOM_EINVAL;
4021 return vcl_bapi_add_cert_key_pair (ckpair);
4025 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4027 if (vcm->cfg.vpp_app_socket_api)
4029 clib_warning ("not supported");
4030 return VPPCOM_EINVAL;
4032 return vcl_bapi_del_cert_key_pair (ckpair_index);
4036 * fd.io coding-style-patch-verification: ON
4039 * eval: (c-set-style "gnu")