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_msg_add_ext_config (vcl_session_t *s, uword *offset)
171 c = vcl_segment_alloc_chunk (vcl_vpp_worker_segment_handle (0),
172 0 /* one slice only */, s->ext_config->len,
175 clib_memcpy_fast (c->data, s->ext_config, s->ext_config->len);
179 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
181 app_session_evt_t _app_evt, *app_evt = &_app_evt;
182 session_listen_msg_t *mp;
185 mq = vcl_worker_ctrl_mq (wrk);
186 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
187 mp = (session_listen_msg_t *) app_evt->evt->data;
188 memset (mp, 0, sizeof (*mp));
189 mp->client_index = wrk->api_client_handle;
190 mp->context = s->session_index;
191 mp->wrk_index = wrk->vpp_wrk_index;
192 mp->is_ip4 = s->transport.is_ip4;
193 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
194 mp->port = s->transport.lcl_port;
195 mp->proto = s->session_type;
196 mp->ckpair_index = s->ckpair_index;
198 if (s->flags & VCL_SESSION_F_CONNECTED)
199 mp->flags = TRANSPORT_CFG_F_CONNECTED;
201 vcl_msg_add_ext_config (s, &mp->ext_config);
202 app_send_ctrl_evt_to_vpp (mq, app_evt);
205 clib_mem_free (s->ext_config);
211 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
213 app_session_evt_t _app_evt, *app_evt = &_app_evt;
214 session_connect_msg_t *mp;
217 mq = vcl_worker_ctrl_mq (wrk);
218 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
219 mp = (session_connect_msg_t *) app_evt->evt->data;
220 memset (mp, 0, sizeof (*mp));
221 mp->client_index = wrk->api_client_handle;
222 mp->context = s->session_index;
223 mp->wrk_index = wrk->vpp_wrk_index;
224 mp->is_ip4 = s->transport.is_ip4;
225 mp->parent_handle = s->parent_handle;
226 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
227 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
228 mp->port = s->transport.rmt_port;
229 mp->lcl_port = s->transport.lcl_port;
230 mp->proto = s->session_type;
231 mp->ckpair_index = s->ckpair_index;
233 if (s->flags & VCL_SESSION_F_CONNECTED)
234 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
236 vcl_msg_add_ext_config (s, &mp->ext_config);
237 app_send_ctrl_evt_to_vpp (mq, app_evt);
241 clib_mem_free (s->ext_config);
247 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
249 app_session_evt_t _app_evt, *app_evt = &_app_evt;
250 session_unlisten_msg_t *mp;
253 mq = vcl_worker_ctrl_mq (wrk);
254 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
255 mp = (session_unlisten_msg_t *) app_evt->evt->data;
256 memset (mp, 0, sizeof (*mp));
257 mp->client_index = wrk->api_client_handle;
258 mp->wrk_index = wrk->vpp_wrk_index;
259 mp->handle = s->vpp_handle;
260 mp->context = wrk->wrk_index;
261 app_send_ctrl_evt_to_vpp (mq, app_evt);
265 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
267 app_session_evt_t _app_evt, *app_evt = &_app_evt;
268 session_disconnect_msg_t *mp;
271 /* Send to thread that owns the session */
273 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
274 mp = (session_disconnect_msg_t *) app_evt->evt->data;
275 memset (mp, 0, sizeof (*mp));
276 mp->client_index = wrk->api_client_handle;
277 mp->handle = s->vpp_handle;
278 app_send_ctrl_evt_to_vpp (mq, app_evt);
282 vcl_send_app_detach (vcl_worker_t * wrk)
284 app_session_evt_t _app_evt, *app_evt = &_app_evt;
285 session_app_detach_msg_t *mp;
288 mq = vcl_worker_ctrl_mq (wrk);
289 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
290 mp = (session_app_detach_msg_t *) app_evt->evt->data;
291 memset (mp, 0, sizeof (*mp));
292 mp->client_index = wrk->api_client_handle;
293 app_send_ctrl_evt_to_vpp (mq, app_evt);
297 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
298 session_handle_t handle, int retval)
300 app_session_evt_t _app_evt, *app_evt = &_app_evt;
301 session_accepted_reply_msg_t *rmp;
302 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
303 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
304 rmp->handle = handle;
305 rmp->context = context;
306 rmp->retval = retval;
307 app_send_ctrl_evt_to_vpp (mq, app_evt);
311 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
314 app_session_evt_t _app_evt, *app_evt = &_app_evt;
315 session_disconnected_reply_msg_t *rmp;
316 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
317 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
318 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
319 rmp->handle = s->vpp_handle;
320 rmp->context = wrk->api_client_handle;
321 rmp->retval = retval;
322 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
326 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
329 app_session_evt_t _app_evt, *app_evt = &_app_evt;
330 session_reset_reply_msg_t *rmp;
331 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
332 SESSION_CTRL_EVT_RESET_REPLY);
333 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
334 rmp->handle = s->vpp_handle;
335 rmp->context = wrk->api_client_handle;
336 rmp->retval = retval;
337 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
341 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
344 app_session_evt_t _app_evt, *app_evt = &_app_evt;
345 session_worker_update_msg_t *mp;
347 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
348 SESSION_CTRL_EVT_WORKER_UPDATE);
349 mp = (session_worker_update_msg_t *) app_evt->evt->data;
350 mp->client_index = wrk->api_client_handle;
351 mp->handle = s->vpp_handle;
352 mp->req_wrk_index = wrk->vpp_wrk_index;
353 mp->wrk_index = wrk_index;
354 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
358 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
360 app_session_evt_t _app_evt, *app_evt = &_app_evt;
361 session_app_wrk_rpc_msg_t *mp;
362 vcl_worker_t *dst_wrk, *wrk;
366 if (data_len > sizeof (mp->data))
369 clib_spinlock_lock (&vcm->workers_lock);
371 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
375 wrk = vcl_worker_get_current ();
376 mq = vcl_worker_ctrl_mq (wrk);
377 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
378 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
379 mp->client_index = wrk->api_client_handle;
380 mp->wrk_index = dst_wrk->vpp_wrk_index;
381 clib_memcpy (mp->data, data, data_len);
382 app_send_ctrl_evt_to_vpp (mq, app_evt);
386 clib_spinlock_unlock (&vcm->workers_lock);
391 vcl_session_transport_attr (vcl_worker_t *wrk, vcl_session_t *s, u8 is_get,
392 transport_endpt_attr_t *attr)
394 app_session_evt_t _app_evt, *app_evt = &_app_evt;
395 session_transport_attr_msg_t *mp;
399 ASSERT (!wrk->session_attr_op);
400 wrk->session_attr_op = 1;
401 wrk->session_attr_op_rv = -1;
404 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_TRANSPORT_ATTR);
405 mp = (session_transport_attr_msg_t *) app_evt->evt->data;
406 memset (mp, 0, sizeof (*mp));
407 mp->client_index = wrk->api_client_handle;
408 mp->handle = s->vpp_handle;
411 app_send_ctrl_evt_to_vpp (mq, app_evt);
413 timeout = clib_time_now (&wrk->clib_time) + 1;
415 while (wrk->session_attr_op && clib_time_now (&wrk->clib_time) < timeout)
416 vcl_flush_mq_events ();
418 if (!wrk->session_attr_op_rv && is_get)
419 *attr = wrk->session_attr_rv;
421 wrk->session_attr_op = 0;
423 return wrk->session_attr_op_rv;
427 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
430 vcl_session_t *session, *listen_session;
433 session = vcl_session_alloc (wrk);
435 listen_session = vcl_session_get (wrk, ls_index);
436 if (listen_session->vpp_handle != mp->listener_handle)
438 VDBG (0, "ERROR: listener handle %lu does not match session %u",
439 mp->listener_handle, ls_index);
443 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
445 mp->vpp_event_queue_address, 0, session))
447 VDBG (0, "failed to attach fifos for %u", session->session_index);
451 session->vpp_handle = mp->handle;
452 session->session_state = VCL_STATE_READY;
453 session->transport.rmt_port = mp->rmt.port;
454 session->transport.is_ip4 = mp->rmt.is_ip4;
455 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
456 sizeof (ip46_address_t));
458 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
459 session->transport.lcl_port = listen_session->transport.lcl_port;
460 session->transport.lcl_ip = listen_session->transport.lcl_ip;
461 session->session_type = listen_session->session_type;
462 session->is_dgram = vcl_proto_is_dgram (session->session_type);
463 session->listener_index = listen_session->session_index;
464 listen_session->n_accepted_sessions++;
466 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
467 " port %d queue %p!", session->session_index, mp->handle,
468 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
469 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
470 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
471 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
473 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
474 session->vpp_handle, 0);
476 return session->session_index;
479 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
480 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
481 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
482 VNET_API_ERROR_INVALID_ARGUMENT);
483 vcl_session_free (wrk, session);
484 return VCL_INVALID_SESSION_INDEX;
488 vcl_session_connected_handler (vcl_worker_t * wrk,
489 session_connected_msg_t * mp)
491 vcl_session_t *session = 0;
494 session_index = mp->context;
495 session = vcl_session_get (wrk, session_index);
498 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
499 mp->handle, session_index);
500 return VCL_INVALID_SESSION_INDEX;
504 VDBG (0, "ERROR: session index %u: connect failed! %U",
505 session_index, format_session_error, mp->retval);
506 session->session_state = VCL_STATE_DETACHED;
507 session->vpp_handle = mp->handle;
508 return session_index;
511 session->vpp_handle = mp->handle;
513 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
515 mp->vpp_event_queue_address, 0, session))
517 VDBG (0, "failed to attach fifos for %u", session->session_index);
518 session->session_state = VCL_STATE_DETACHED;
519 vcl_send_session_disconnect (wrk, session);
520 return session_index;
525 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
526 mp->ct_tx_fifo, (uword) ~0, 1, session))
528 VDBG (0, "failed to attach ct fifos for %u", session->session_index);
529 session->session_state = VCL_STATE_DETACHED;
530 vcl_send_session_disconnect (wrk, session);
531 return session_index;
535 session->transport.is_ip4 = mp->lcl.is_ip4;
536 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
537 sizeof (session->transport.lcl_ip));
538 session->transport.lcl_port = mp->lcl.port;
540 /* Application closed session before connect reply */
541 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
542 && session->session_state == VCL_STATE_CLOSED)
543 vcl_send_session_disconnect (wrk, session);
545 session->session_state = VCL_STATE_READY;
547 /* Add it to lookup table */
548 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
550 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
551 " refcnt %d", session_index, mp->handle, session->rx_fifo,
552 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
554 return session_index;
558 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
560 vcl_session_msg_t *accepted_msg;
563 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
565 accepted_msg = &session->accept_evts_fifo[i];
566 if (accepted_msg->accepted_msg.handle == handle)
568 accepted_msg->flags |= flags;
576 vcl_session_reset_handler (vcl_worker_t * wrk,
577 session_reset_msg_t * reset_msg)
579 vcl_session_t *session;
582 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
583 session = vcl_session_get (wrk, sid);
586 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
587 return VCL_INVALID_SESSION_INDEX;
590 /* Caught a reset before actually accepting the session */
591 if (session->session_state == VCL_STATE_LISTEN)
594 if (!vcl_flag_accepted_session (session, reset_msg->handle,
595 VCL_ACCEPTED_F_RESET))
596 VDBG (0, "session was not accepted!");
597 return VCL_INVALID_SESSION_INDEX;
600 if (session->session_state != VCL_STATE_CLOSED)
601 session->session_state = VCL_STATE_DISCONNECT;
602 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
607 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
609 vcl_session_t *session;
610 u32 sid = mp->context;
612 session = vcl_session_get (wrk, sid);
615 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
616 format_session_error, mp->retval);
619 session->session_state = VCL_STATE_DETACHED;
620 session->vpp_handle = mp->handle;
625 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
627 return VCL_INVALID_SESSION_INDEX;
631 session->vpp_handle = mp->handle;
632 session->transport.is_ip4 = mp->lcl_is_ip4;
633 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
634 sizeof (ip46_address_t));
635 session->transport.lcl_port = mp->lcl_port;
636 vcl_session_table_add_listener (wrk, mp->handle, sid);
637 session->session_state = VCL_STATE_LISTEN;
639 if (vcl_session_is_cl (session))
641 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
642 mp->tx_fifo, mp->vpp_evt_q, 0, session))
644 VDBG (0, "failed to attach fifos for %u", session->session_index);
645 session->session_state = VCL_STATE_DETACHED;
646 return VCL_INVALID_SESSION_INDEX;
650 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
655 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
657 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
660 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
663 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
666 if (s->session_state != VCL_STATE_DISCONNECT)
668 /* Connected udp listener */
669 if (s->session_type == VPPCOM_PROTO_UDP
670 && s->session_state == VCL_STATE_CLOSED)
673 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
678 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
679 s->session_index, mp->handle, format_session_error, mp->retval);
681 if (mp->context != wrk->wrk_index)
682 VDBG (0, "wrong context");
684 vcl_session_table_del_vpp_handle (wrk, mp->handle);
685 vcl_session_free (wrk, s);
689 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
691 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
695 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
698 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
702 /* Only validate if a value is provided */
703 if (mp->segment_handle != SESSION_INVALID_HANDLE)
705 fs_index = vcl_segment_table_lookup (mp->segment_handle);
706 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
708 VDBG (0, "segment %lx for session %u is not mounted!",
709 mp->segment_handle, s->session_index);
710 s->session_state = VCL_STATE_DETACHED;
715 s->vpp_handle = mp->new_handle;
717 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
718 mp->vpp_thread_index, &s->vpp_evt_q);
720 vcl_session_table_del_vpp_handle (wrk, mp->handle);
721 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
723 /* Generate new tx event if we have outstanding data */
724 if (svm_fifo_has_event (s->tx_fifo))
725 app_send_io_evt_to_vpp (s->vpp_evt_q,
726 s->tx_fifo->shr->master_session_index,
727 SESSION_IO_EVT_TX, SVM_Q_WAIT);
729 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
730 mp->vpp_thread_index, mp->new_handle);
733 static vcl_session_t *
734 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
736 vcl_session_msg_t *vcl_msg;
737 vcl_session_t *session;
739 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
740 if (PREDICT_FALSE (session != 0))
741 VWRN ("session overlap handle %lu state %u!", msg->handle,
742 session->session_state);
744 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
747 VERR ("couldn't find listen session: listener handle %llx",
748 msg->listener_handle);
752 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
754 vcl_msg->accepted_msg = *msg;
755 /* Session handle points to listener until fully accepted by app */
756 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
761 static vcl_session_t *
762 vcl_session_disconnected_handler (vcl_worker_t * wrk,
763 session_disconnected_msg_t * msg)
765 vcl_session_t *session;
767 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
770 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
774 /* Late disconnect notification on a session that has been closed */
775 if (session->session_state == VCL_STATE_CLOSED)
778 /* Caught a disconnect before actually accepting the session */
779 if (session->session_state == VCL_STATE_LISTEN)
781 if (!vcl_flag_accepted_session (session, msg->handle,
782 VCL_ACCEPTED_F_CLOSED))
783 VDBG (0, "session was not accepted!");
787 /* If not already reset change state */
788 if (session->session_state != VCL_STATE_DISCONNECT)
789 session->session_state = VCL_STATE_VPP_CLOSING;
795 vppcom_session_disconnect (u32 session_handle)
797 vcl_worker_t *wrk = vcl_worker_get_current ();
798 vcl_session_t *session, *listen_session;
799 vcl_session_state_t state;
802 session = vcl_session_get_w_handle (wrk, session_handle);
804 return VPPCOM_EBADFD;
806 vpp_handle = session->vpp_handle;
807 state = session->session_state;
809 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
810 vpp_handle, state, vppcom_session_state_str (state));
812 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
814 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
815 return VPPCOM_EBADFD;
818 if (state == VCL_STATE_VPP_CLOSING)
820 vcl_send_session_disconnected_reply (wrk, session, 0);
821 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
822 session->session_index, vpp_handle);
826 /* Session doesn't have an event queue yet. Probably a non-blocking
827 * connect. Wait for the reply */
828 if (PREDICT_FALSE (!session->vpp_evt_q))
831 VDBG (1, "session %u [0x%llx]: sending disconnect...",
832 session->session_index, vpp_handle);
833 vcl_send_session_disconnect (wrk, session);
836 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
838 listen_session = vcl_session_get (wrk, session->listener_index);
839 listen_session->n_accepted_sessions--;
846 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
848 session_cleanup_msg_t *msg;
849 vcl_session_t *session;
851 msg = (session_cleanup_msg_t *) data;
852 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
855 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
859 if (msg->type == SESSION_CLEANUP_TRANSPORT)
861 /* Transport was cleaned up before we confirmed close. Probably the
862 * app is still waiting for some data that cannot be delivered.
863 * Confirm close to make sure everything is cleaned up.
864 * Move to undetermined state to ensure that the session is not
865 * removed before both vpp and the app cleanup.
866 * - If the app closes first, the session is moved to CLOSED state
867 * and the session cleanup notification from vpp removes the
869 * - If vpp cleans up the session first, the session is moved to
870 * DETACHED state lower and subsequently the close from the app
873 if (session->session_state == VCL_STATE_VPP_CLOSING)
875 vppcom_session_disconnect (vcl_session_handle (session));
876 session->session_state = VCL_STATE_UPDATED;
878 else if (session->session_state == VCL_STATE_DISCONNECT)
880 vcl_send_session_reset_reply (wrk, session, 0);
881 session->session_state = VCL_STATE_UPDATED;
886 vcl_session_table_del_vpp_handle (wrk, msg->handle);
887 /* Should not happen. App did not close the connection so don't free it. */
888 if (session->session_state != VCL_STATE_CLOSED)
890 VDBG (0, "app did not close session %d", session->session_index);
891 session->session_state = VCL_STATE_DETACHED;
892 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
895 vcl_session_free (wrk, session);
899 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
901 session_req_worker_update_msg_t *msg;
904 msg = (session_req_worker_update_msg_t *) data;
905 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
909 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
913 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
915 session_worker_update_reply_msg_t *msg;
918 msg = (session_worker_update_reply_msg_t *) data;
919 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
922 VDBG (0, "unknown handle 0x%llx", msg->handle);
928 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
929 msg->tx_fifo, (uword) ~0, 0, s))
931 VDBG (0, "failed to attach fifos for %u", s->session_index);
935 s->session_state = VCL_STATE_UPDATED;
937 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
938 s->vpp_handle, wrk->wrk_index);
942 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
945 if (vcm->cfg.vpp_app_socket_api)
946 return vcl_sapi_recv_fds (wrk, fds, n_fds);
948 return vcl_bapi_recv_fds (wrk, fds, n_fds);
952 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
954 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
955 session_app_add_segment_msg_t *msg;
959 msg = (session_app_add_segment_msg_t *) data;
963 vcl_api_recv_fd (wrk, &fd, 1);
964 seg_type = SSVM_SEGMENT_MEMFD;
967 segment_handle = msg->segment_handle;
968 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
970 clib_warning ("invalid segment handle");
974 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
977 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
981 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
986 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
988 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
989 vcl_segment_detach (msg->segment_handle);
990 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
994 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
996 if (!vcm->wrk_rpc_fn)
999 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
1003 vcl_session_transport_attr_reply_handler (vcl_worker_t *wrk, void *data)
1005 session_transport_attr_reply_msg_t *mp;
1007 if (!wrk->session_attr_op)
1010 mp = (session_transport_attr_reply_msg_t *) data;
1012 wrk->session_attr_op_rv = mp->retval;
1013 wrk->session_attr_op = 0;
1014 wrk->session_attr_rv = mp->attr;
1018 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
1020 session_disconnected_msg_t *disconnected_msg;
1021 session_connected_msg_t *connected_msg;
1022 session_reset_msg_t *reset_msg;
1023 session_event_t *ecpy;
1027 switch (e->event_type)
1029 case SESSION_IO_EVT_RX:
1030 case SESSION_IO_EVT_TX:
1031 s = vcl_session_get (wrk, e->session_index);
1032 if (!s || !vcl_session_is_open (s))
1034 vec_add1 (wrk->unhandled_evts_vector, *e);
1036 case SESSION_CTRL_EVT_BOUND:
1037 /* We can only wait for only one listen so not postponed */
1038 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1040 case SESSION_CTRL_EVT_ACCEPTED:
1041 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1042 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1044 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1046 ecpy->postponed = 1;
1047 ecpy->session_index = s->session_index;
1050 case SESSION_CTRL_EVT_CONNECTED:
1051 connected_msg = (session_connected_msg_t *) e->data;
1052 sid = vcl_session_connected_handler (wrk, connected_msg);
1053 if (!(s = vcl_session_get (wrk, sid)))
1055 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1057 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1059 ecpy->postponed = 1;
1060 ecpy->session_index = s->session_index;
1063 case SESSION_CTRL_EVT_DISCONNECTED:
1064 disconnected_msg = (session_disconnected_msg_t *) e->data;
1065 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1067 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1069 vec_add1 (wrk->unhandled_evts_vector, *e);
1072 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1074 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1077 case SESSION_CTRL_EVT_RESET:
1078 reset_msg = (session_reset_msg_t *) e->data;
1079 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1081 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1083 vec_add1 (wrk->unhandled_evts_vector, *e);
1086 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1088 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1089 vcl_session_unlisten_reply_handler (wrk, e->data);
1091 case SESSION_CTRL_EVT_MIGRATED:
1092 vcl_session_migrated_handler (wrk, e->data);
1094 case SESSION_CTRL_EVT_CLEANUP:
1095 vcl_session_cleanup_handler (wrk, e->data);
1097 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1098 vcl_session_req_worker_update_handler (wrk, e->data);
1100 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1101 vcl_session_worker_update_reply_handler (wrk, e->data);
1103 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1104 vcl_session_app_add_segment_handler (wrk, e->data);
1106 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1107 vcl_session_app_del_segment_handler (wrk, e->data);
1109 case SESSION_CTRL_EVT_APP_WRK_RPC:
1110 vcl_worker_rpc_handler (wrk, e->data);
1112 case SESSION_CTRL_EVT_TRANSPORT_ATTR_REPLY:
1113 vcl_session_transport_attr_reply_handler (wrk, e->data);
1116 clib_warning ("unhandled %u", e->event_type);
1122 vppcom_wait_for_session_state_change (u32 session_index,
1123 vcl_session_state_t state,
1126 vcl_worker_t *wrk = vcl_worker_get_current ();
1127 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1128 vcl_session_t *volatile session;
1129 svm_msg_q_msg_t msg;
1134 session = vcl_session_get (wrk, session_index);
1135 if (PREDICT_FALSE (!session))
1137 return VPPCOM_EBADFD;
1139 if (session->session_state == state)
1143 if (session->session_state == VCL_STATE_DETACHED)
1145 return VPPCOM_ECONNREFUSED;
1148 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1153 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1154 vcl_handle_mq_event (wrk, e);
1155 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1157 while (clib_time_now (&wrk->clib_time) < timeout);
1159 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1160 vppcom_session_state_str (state));
1161 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1163 return VPPCOM_ETIMEDOUT;
1167 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1169 vcl_session_state_t state;
1173 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1176 vec_foreach (sip, wrk->pending_session_wrk_updates)
1178 s = vcl_session_get (wrk, *sip);
1179 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1180 state = s->session_state;
1181 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1183 s->session_state = state;
1185 vec_reset_length (wrk->pending_session_wrk_updates);
1189 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1191 svm_msg_q_msg_t *msg;
1196 mq = wrk->app_event_queue;
1197 vcl_mq_dequeue_batch (wrk, mq, ~0);
1199 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1201 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1202 e = svm_msg_q_msg_data (mq, msg);
1203 vcl_handle_mq_event (wrk, e);
1204 svm_msg_q_free_msg (mq, msg);
1206 vec_reset_length (wrk->mq_msg_vector);
1207 vcl_handle_pending_wrk_updates (wrk);
1211 vcl_flush_mq_events (void)
1213 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1217 vppcom_session_unbind (u32 session_handle)
1219 vcl_worker_t *wrk = vcl_worker_get_current ();
1220 session_accepted_msg_t *accepted_msg;
1221 vcl_session_t *session = 0;
1222 vcl_session_msg_t *evt;
1224 session = vcl_session_get_w_handle (wrk, session_handle);
1226 return VPPCOM_EBADFD;
1228 /* Flush pending accept events, if any */
1229 while (clib_fifo_elts (session->accept_evts_fifo))
1231 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1232 accepted_msg = &evt->accepted_msg;
1233 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1234 vcl_send_session_accepted_reply (session->vpp_evt_q,
1235 accepted_msg->context,
1236 accepted_msg->handle, -1);
1238 clib_fifo_free (session->accept_evts_fifo);
1240 vcl_send_session_unlisten (wrk, session);
1242 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1243 session->vpp_handle);
1244 vcl_evt (VCL_EVT_UNBIND, session);
1246 session->vpp_handle = ~0;
1247 session->session_state = VCL_STATE_DISCONNECT;
1255 * Notify vpp of the disconnect and mark the worker as free. If we're the
1256 * last worker, do a full cleanup otherwise, since we're probably a forked
1257 * child, avoid syscalls as much as possible. We might've lost privileges.
1260 vppcom_app_exit (void)
1262 if (!pool_elts (vcm->workers))
1264 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1265 vcl_set_worker_index (~0);
1266 vcl_elog_stop (vcm);
1270 vcl_api_attach (void)
1272 if (vcm->cfg.vpp_app_socket_api)
1273 return vcl_sapi_attach ();
1275 return vcl_bapi_attach ();
1279 vcl_api_detach (vcl_worker_t * wrk)
1281 vcl_send_app_detach (wrk);
1283 if (vcm->cfg.vpp_app_socket_api)
1284 return vcl_sapi_detach (wrk);
1286 return vcl_bapi_disconnect_from_vpp ();
1290 * VPPCOM Public API functions
1293 vppcom_app_create (const char *app_name)
1295 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1300 VDBG (1, "already initialized");
1301 return VPPCOM_EEXIST;
1305 vppcom_cfg (&vcm->cfg);
1306 vcl_cfg = &vcm->cfg;
1308 vcm->main_cpu = pthread_self ();
1309 vcm->main_pid = getpid ();
1310 vcm->app_name = format (0, "%s", app_name);
1311 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1312 20 /* timeout in secs */ );
1313 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1314 clib_spinlock_init (&vcm->workers_lock);
1315 clib_rwlock_init (&vcm->segment_table_lock);
1316 atexit (vppcom_app_exit);
1317 vcl_elog_init (vcm);
1319 /* Allocate default worker */
1320 vcl_worker_alloc_and_init ();
1322 if ((rv = vcl_api_attach ()))
1325 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1326 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1332 vppcom_app_destroy (void)
1334 vcl_worker_t *wrk, *current_wrk;
1337 if (!pool_elts (vcm->workers))
1340 vcl_evt (VCL_EVT_DETACH, vcm);
1342 current_wrk = vcl_worker_get_current ();
1345 pool_foreach (wrk, vcm->workers) {
1346 if (current_wrk != wrk)
1347 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1351 vcl_api_detach (current_wrk);
1352 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1354 vcl_elog_stop (vcm);
1357 * Free the heap and fix vcm
1359 heap = clib_mem_get_heap ();
1360 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1362 vcm = &_vppcom_main;
1367 vppcom_session_create (u8 proto, u8 is_nonblocking)
1369 vcl_worker_t *wrk = vcl_worker_get_current ();
1370 vcl_session_t *session;
1372 session = vcl_session_alloc (wrk);
1374 session->session_type = proto;
1375 session->session_state = VCL_STATE_CLOSED;
1376 session->vpp_handle = ~0;
1377 session->ckpair_index = ~0;
1378 session->is_dgram = vcl_proto_is_dgram (proto);
1381 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1383 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1384 is_nonblocking, session_index);
1386 VDBG (0, "created session %u", session->session_index);
1388 return vcl_session_handle (session);
1392 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1393 vcl_session_handle_t sh, u8 do_disconnect)
1397 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1399 if (s->flags & VCL_SESSION_F_IS_VEP)
1401 u32 next_sh = s->vep.next_sh;
1402 while (next_sh != ~0)
1404 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1405 if (PREDICT_FALSE (rv < 0))
1406 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1407 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1408 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1409 next_sh = s->vep.next_sh;
1414 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1416 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1418 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1419 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1420 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1425 VDBG (1, "session %u [0x%llx] disconnect skipped",
1426 s->session_index, s->vpp_handle);
1430 if (s->session_state == VCL_STATE_LISTEN)
1432 rv = vppcom_session_unbind (sh);
1433 if (PREDICT_FALSE (rv < 0))
1434 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1435 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1436 vppcom_retval_str (rv));
1439 else if (vcl_session_is_ready (s)
1440 || (vcl_session_is_connectable_listener (wrk, s)))
1442 rv = vppcom_session_disconnect (sh);
1443 if (PREDICT_FALSE (rv < 0))
1444 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1445 " rv %d (%s)", s->session_index, s->vpp_handle,
1446 rv, vppcom_retval_str (rv));
1448 else if (s->session_state == VCL_STATE_DISCONNECT)
1450 vcl_send_session_reset_reply (wrk, s, 0);
1452 else if (s->session_state == VCL_STATE_DETACHED)
1454 /* Should not happen. VPP cleaned up before app confirmed close */
1455 VDBG (0, "vpp freed session %d before close", s->session_index);
1459 s->session_state = VCL_STATE_CLOSED;
1461 /* Session is removed only after vpp confirms the disconnect */
1465 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1467 vcl_session_free (wrk, s);
1468 vcl_evt (VCL_EVT_CLOSE, s, rv);
1474 vppcom_session_close (uint32_t session_handle)
1476 vcl_worker_t *wrk = vcl_worker_get_current ();
1477 vcl_session_t *session;
1479 session = vcl_session_get_w_handle (wrk, session_handle);
1481 return VPPCOM_EBADFD;
1482 return vcl_session_cleanup (wrk, session, session_handle,
1483 1 /* do_disconnect */ );
1487 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1489 vcl_worker_t *wrk = vcl_worker_get_current ();
1490 vcl_session_t *session = 0;
1493 return VPPCOM_EINVAL;
1495 session = vcl_session_get_w_handle (wrk, session_handle);
1497 return VPPCOM_EBADFD;
1499 if (session->flags & VCL_SESSION_F_IS_VEP)
1501 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1502 session->session_index);
1503 return VPPCOM_EBADFD;
1506 session->transport.is_ip4 = ep->is_ip4;
1508 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1509 sizeof (ip4_address_t));
1511 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1512 sizeof (ip6_address_t));
1513 session->transport.lcl_port = ep->port;
1515 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1516 "proto %s", session->session_index, session_handle,
1517 session->transport.is_ip4 ? "IPv4" : "IPv6",
1518 format_ip46_address, &session->transport.lcl_ip,
1519 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1520 clib_net_to_host_u16 (session->transport.lcl_port),
1521 vppcom_proto_str (session->session_type));
1522 vcl_evt (VCL_EVT_BIND, session);
1524 if (session->session_type == VPPCOM_PROTO_UDP)
1525 vppcom_session_listen (session_handle, 10);
1531 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1533 vcl_worker_t *wrk = vcl_worker_get_current ();
1534 vcl_session_t *listen_session = 0;
1535 u64 listen_vpp_handle;
1538 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1539 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1540 return VPPCOM_EBADFD;
1542 if (q_len == 0 || q_len == ~0)
1543 q_len = vcm->cfg.listen_queue_size;
1545 listen_vpp_handle = listen_session->vpp_handle;
1546 if (listen_session->session_state == VCL_STATE_LISTEN)
1548 VDBG (0, "session %u [0x%llx]: already in listen state!",
1549 listen_sh, listen_vpp_handle);
1553 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1556 * Send listen request to vpp and wait for reply
1558 vcl_send_session_listen (wrk, listen_session);
1559 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1561 vcm->cfg.session_timeout);
1563 if (PREDICT_FALSE (rv))
1565 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1566 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1567 listen_sh, listen_session->vpp_handle, rv,
1568 vppcom_retval_str (rv));
1576 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1578 if (ls->flags & VCL_SESSION_F_IS_VEP)
1580 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1582 return VPPCOM_EBADFD;
1585 if ((ls->session_state != VCL_STATE_LISTEN)
1586 && (!vcl_session_is_connectable_listener (wrk, ls)))
1588 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1589 " (%s)", ls->vpp_handle, ls->session_state,
1590 vppcom_session_state_str (ls->session_state));
1591 return VPPCOM_EBADFD;
1597 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1599 if (!strcmp (proto_str, "TCP"))
1600 *proto = VPPCOM_PROTO_TCP;
1601 else if (!strcmp (proto_str, "tcp"))
1602 *proto = VPPCOM_PROTO_TCP;
1603 else if (!strcmp (proto_str, "UDP"))
1604 *proto = VPPCOM_PROTO_UDP;
1605 else if (!strcmp (proto_str, "udp"))
1606 *proto = VPPCOM_PROTO_UDP;
1607 else if (!strcmp (proto_str, "TLS"))
1608 *proto = VPPCOM_PROTO_TLS;
1609 else if (!strcmp (proto_str, "tls"))
1610 *proto = VPPCOM_PROTO_TLS;
1611 else if (!strcmp (proto_str, "QUIC"))
1612 *proto = VPPCOM_PROTO_QUIC;
1613 else if (!strcmp (proto_str, "quic"))
1614 *proto = VPPCOM_PROTO_QUIC;
1615 else if (!strcmp (proto_str, "DTLS"))
1616 *proto = VPPCOM_PROTO_DTLS;
1617 else if (!strcmp (proto_str, "dtls"))
1618 *proto = VPPCOM_PROTO_DTLS;
1625 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1628 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1629 vcl_worker_t *wrk = vcl_worker_get_current ();
1630 session_accepted_msg_t accepted_msg;
1631 vcl_session_t *listen_session = 0;
1632 vcl_session_t *client_session = 0;
1633 vcl_session_msg_t *evt;
1639 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1640 if (!listen_session)
1641 return VPPCOM_EBADFD;
1643 listen_session_index = listen_session->session_index;
1644 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1647 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1649 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1650 accept_flags = evt->flags;
1651 accepted_msg = evt->accepted_msg;
1655 is_nonblocking = vcl_session_has_attr (listen_session,
1656 VCL_SESS_ATTR_NONBLOCK);
1659 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1660 return VPPCOM_EAGAIN;
1662 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1663 vcl_worker_flush_mq_events (wrk);
1669 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1670 listen_session_index);
1671 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1672 return VPPCOM_ECONNABORTED;
1674 listen_session = vcl_session_get (wrk, listen_session_index);
1675 client_session = vcl_session_get (wrk, client_session_index);
1677 if (flags & O_NONBLOCK)
1678 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1680 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1681 " flags %d, is_nonblocking %u", listen_session->session_index,
1682 listen_session->vpp_handle, client_session_index,
1683 client_session->vpp_handle, flags,
1684 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1688 ep->is_ip4 = client_session->transport.is_ip4;
1689 ep->port = client_session->transport.rmt_port;
1690 if (client_session->transport.is_ip4)
1691 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1692 sizeof (ip4_address_t));
1694 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1695 sizeof (ip6_address_t));
1698 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1699 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1700 client_session_index, client_session->vpp_handle,
1701 format_ip46_address, &client_session->transport.rmt_ip,
1702 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1703 clib_net_to_host_u16 (client_session->transport.rmt_port),
1704 format_ip46_address, &client_session->transport.lcl_ip,
1705 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1706 clib_net_to_host_u16 (client_session->transport.lcl_port));
1707 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1708 client_session_index);
1711 * Session might have been closed already
1715 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1716 client_session->session_state = VCL_STATE_VPP_CLOSING;
1717 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1718 client_session->session_state = VCL_STATE_DISCONNECT;
1720 return vcl_session_handle (client_session);
1724 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1726 vcl_worker_t *wrk = vcl_worker_get_current ();
1727 vcl_session_t *session = 0;
1731 session = vcl_session_get_w_handle (wrk, session_handle);
1733 return VPPCOM_EBADFD;
1734 session_index = session->session_index;
1736 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1738 VDBG (0, "ERROR: cannot connect epoll session %u!",
1739 session->session_index);
1740 return VPPCOM_EBADFD;
1743 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1745 VDBG (0, "session handle %u [0x%llx]: session already "
1746 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1747 session_handle, session->vpp_handle,
1748 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1749 &session->transport.rmt_ip, session->transport.is_ip4 ?
1750 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1751 clib_net_to_host_u16 (session->transport.rmt_port),
1752 vppcom_proto_str (session->session_type), session->session_state,
1753 vppcom_session_state_str (session->session_state));
1757 /* Attempt to connect a connectionless listener */
1758 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1760 if (session->session_type != VPPCOM_PROTO_UDP)
1761 return VPPCOM_EINVAL;
1762 vcl_send_session_unlisten (wrk, session);
1763 session->session_state = VCL_STATE_CLOSED;
1766 session->transport.is_ip4 = server_ep->is_ip4;
1767 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1768 session->transport.rmt_port = server_ep->port;
1769 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1770 session->flags |= VCL_SESSION_F_CONNECTED;
1772 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1773 "port %d proto %s", session_handle,
1774 vppcom_session_state_str (session->session_state),
1775 session->transport.is_ip4 ? "IPv4" : "IPv6",
1776 format_ip46_address,
1777 &session->transport.rmt_ip, session->transport.is_ip4 ?
1778 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1779 clib_net_to_host_u16 (session->transport.rmt_port),
1780 vppcom_proto_str (session->session_type));
1782 vcl_send_session_connect (wrk, session);
1784 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1786 /* State set to STATE_UPDATED to ensure the session is not assumed
1787 * to be ready and to also allow the app to close it prior to vpp's
1788 * connected reply. */
1789 session->session_state = VCL_STATE_UPDATED;
1790 return VPPCOM_EINPROGRESS;
1794 * Wait for reply from vpp if blocking
1796 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1797 vcm->cfg.session_timeout);
1799 session = vcl_session_get (wrk, session_index);
1800 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1801 session->vpp_handle, rv ? "failed" : "succeeded");
1807 vppcom_session_stream_connect (uint32_t session_handle,
1808 uint32_t parent_session_handle)
1810 vcl_worker_t *wrk = vcl_worker_get_current ();
1811 vcl_session_t *session, *parent_session;
1812 u32 session_index, parent_session_index;
1815 session = vcl_session_get_w_handle (wrk, session_handle);
1817 return VPPCOM_EBADFD;
1818 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1819 if (!parent_session)
1820 return VPPCOM_EBADFD;
1822 session_index = session->session_index;
1823 parent_session_index = parent_session->session_index;
1824 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1826 VDBG (0, "ERROR: cannot connect epoll session %u!",
1827 session->session_index);
1828 return VPPCOM_EBADFD;
1831 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1833 VDBG (0, "session handle %u [0x%llx]: session already "
1834 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1835 session_handle, session->vpp_handle,
1836 parent_session_handle, parent_session->vpp_handle,
1837 vppcom_proto_str (session->session_type), session->session_state,
1838 vppcom_session_state_str (session->session_state));
1842 /* Connect to quic session specifics */
1843 session->transport.is_ip4 = parent_session->transport.is_ip4;
1844 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1845 session->transport.rmt_port = 0;
1846 session->parent_handle = parent_session->vpp_handle;
1848 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1849 session_handle, parent_session_handle, parent_session->vpp_handle);
1852 * Send connect request and wait for reply from vpp
1854 vcl_send_session_connect (wrk, session);
1855 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1856 vcm->cfg.session_timeout);
1858 session->listener_index = parent_session_index;
1859 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1861 parent_session->n_accepted_sessions++;
1863 session = vcl_session_get (wrk, session_index);
1864 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1865 session->vpp_handle, rv ? "failed" : "succeeded");
1871 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1874 vcl_worker_t *wrk = vcl_worker_get_current ();
1875 int rv, n_read = 0, is_nonblocking;
1876 vcl_session_t *s = 0;
1877 svm_fifo_t *rx_fifo;
1882 if (PREDICT_FALSE (!buf))
1883 return VPPCOM_EINVAL;
1885 s = vcl_session_get_w_handle (wrk, session_handle);
1886 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1887 return VPPCOM_EBADFD;
1889 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1891 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1892 s->session_index, s->vpp_handle, s->session_state,
1893 vppcom_session_state_str (s->session_state));
1894 return vcl_session_closed_error (s);
1897 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1898 is_ct = vcl_session_is_ct (s);
1899 mq = wrk->app_event_queue;
1900 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1901 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1903 if (svm_fifo_is_empty_cons (rx_fifo))
1907 if (vcl_session_is_closing (s))
1908 return vcl_session_closing_error (s);
1910 svm_fifo_unset_event (s->rx_fifo);
1911 svm_fifo_unset_event (rx_fifo);
1912 return VPPCOM_EWOULDBLOCK;
1914 while (svm_fifo_is_empty_cons (rx_fifo))
1916 if (vcl_session_is_closing (s))
1917 return vcl_session_closing_error (s);
1920 svm_fifo_unset_event (s->rx_fifo);
1921 svm_fifo_unset_event (rx_fifo);
1923 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1924 vcl_worker_flush_mq_events (wrk);
1931 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1933 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1938 if (svm_fifo_is_empty_cons (rx_fifo))
1941 svm_fifo_unset_event (s->rx_fifo);
1942 svm_fifo_unset_event (rx_fifo);
1943 if (!svm_fifo_is_empty_cons (rx_fifo)
1944 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1946 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1947 e->event_type = SESSION_IO_EVT_RX;
1948 e->session_index = s->session_index;
1951 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1953 /* More data enqueued while reading. Try to drain it
1954 * or fill the buffer. Avoid doing that for dgrams */
1960 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1962 svm_fifo_clear_deq_ntf (rx_fifo);
1963 app_send_io_evt_to_vpp (s->vpp_evt_q,
1964 s->rx_fifo->shr->master_session_index,
1965 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1968 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1969 s->vpp_handle, n_read, rx_fifo);
1975 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1977 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1981 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1983 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1987 vppcom_session_read_segments (uint32_t session_handle,
1988 vppcom_data_segment_t * ds, uint32_t n_segments,
1991 vcl_worker_t *wrk = vcl_worker_get_current ();
1992 int n_read = 0, is_nonblocking;
1993 vcl_session_t *s = 0;
1994 svm_fifo_t *rx_fifo;
1998 s = vcl_session_get_w_handle (wrk, session_handle);
1999 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2000 return VPPCOM_EBADFD;
2002 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2003 return vcl_session_closed_error (s);
2005 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2006 is_ct = vcl_session_is_ct (s);
2007 mq = wrk->app_event_queue;
2008 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2009 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2011 if (svm_fifo_is_empty_cons (rx_fifo))
2016 svm_fifo_unset_event (s->rx_fifo);
2017 svm_fifo_unset_event (rx_fifo);
2018 return VPPCOM_EWOULDBLOCK;
2020 while (svm_fifo_is_empty_cons (rx_fifo))
2022 if (vcl_session_is_closing (s))
2023 return vcl_session_closing_error (s);
2026 svm_fifo_unset_event (s->rx_fifo);
2027 svm_fifo_unset_event (rx_fifo);
2029 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2030 vcl_worker_flush_mq_events (wrk);
2034 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2035 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
2037 return VPPCOM_EAGAIN;
2039 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2042 svm_fifo_unset_event (s->rx_fifo);
2043 svm_fifo_unset_event (rx_fifo);
2044 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2045 && svm_fifo_set_event (rx_fifo)
2046 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2049 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2050 e->event_type = SESSION_IO_EVT_RX;
2051 e->session_index = s->session_index;
2055 s->rx_bytes_pending += n_read;
2060 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2062 vcl_worker_t *wrk = vcl_worker_get_current ();
2066 s = vcl_session_get_w_handle (wrk, session_handle);
2067 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2070 is_ct = vcl_session_is_ct (s);
2071 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2073 ASSERT (s->rx_bytes_pending < n_bytes);
2074 s->rx_bytes_pending -= n_bytes;
2078 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2080 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2082 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2088 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2089 size_t n, u8 is_flush, u8 is_dgram)
2091 int n_write, is_nonblocking;
2092 session_evt_type_t et;
2093 svm_fifo_t *tx_fifo;
2097 if (PREDICT_FALSE (!buf || n == 0))
2098 return VPPCOM_EINVAL;
2100 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2102 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2103 " session!", s->session_index, s->vpp_handle);
2104 return VPPCOM_EBADFD;
2107 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2109 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2110 s->session_index, s->vpp_handle, s->session_state,
2111 vppcom_session_state_str (s->session_state));
2112 return vcl_session_closed_error (s);;
2115 is_ct = vcl_session_is_ct (s);
2116 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2117 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2119 mq = wrk->app_event_queue;
2120 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2124 return VPPCOM_EWOULDBLOCK;
2126 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2128 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2129 if (vcl_session_is_closing (s))
2130 return vcl_session_closing_error (s);
2132 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2133 vcl_worker_flush_mq_events (wrk);
2137 et = SESSION_IO_EVT_TX;
2138 if (is_flush && !is_ct)
2139 et = SESSION_IO_EVT_TX_FLUSH;
2142 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2143 s->vpp_evt_q, buf, n, et,
2144 0 /* do_evt */ , SVM_Q_WAIT);
2146 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2147 0 /* do_evt */ , SVM_Q_WAIT);
2149 if (svm_fifo_set_event (s->tx_fifo))
2150 app_send_io_evt_to_vpp (
2151 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2153 /* The underlying fifo segment can run out of memory */
2154 if (PREDICT_FALSE (n_write < 0))
2155 return VPPCOM_EAGAIN;
2157 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2158 s->vpp_handle, n_write);
2164 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2166 vcl_worker_t *wrk = vcl_worker_get_current ();
2169 s = vcl_session_get_w_handle (wrk, session_handle);
2170 if (PREDICT_FALSE (!s))
2171 return VPPCOM_EBADFD;
2173 return vppcom_session_write_inline (wrk, s, buf, n,
2174 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2178 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2180 vcl_worker_t *wrk = vcl_worker_get_current ();
2183 s = vcl_session_get_w_handle (wrk, session_handle);
2184 if (PREDICT_FALSE (!s))
2185 return VPPCOM_EBADFD;
2187 return vppcom_session_write_inline (wrk, s, buf, n,
2188 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2191 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2192 if (PREDICT_FALSE (!_s->rx_fifo)) \
2194 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2196 if (!vcl_session_is_ct (_s)) \
2198 svm_fifo_unset_event (_s->rx_fifo); \
2199 if (svm_fifo_is_empty (_s->rx_fifo)) \
2202 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2204 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2205 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2211 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2212 unsigned long n_bits, unsigned long *read_map,
2213 unsigned long *write_map,
2214 unsigned long *except_map, u32 * bits_set)
2216 session_disconnected_msg_t *disconnected_msg;
2217 session_connected_msg_t *connected_msg;
2221 switch (e->event_type)
2223 case SESSION_IO_EVT_RX:
2224 sid = e->session_index;
2225 s = vcl_session_get (wrk, sid);
2226 if (!s || !vcl_session_is_open (s))
2228 vcl_fifo_rx_evt_valid_or_break (s);
2229 if (sid < n_bits && read_map)
2231 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2235 case SESSION_IO_EVT_TX:
2236 sid = e->session_index;
2237 s = vcl_session_get (wrk, sid);
2238 if (!s || !vcl_session_is_open (s))
2240 if (sid < n_bits && write_map)
2242 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2246 case SESSION_CTRL_EVT_ACCEPTED:
2248 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2250 s = vcl_session_get (wrk, e->session_index);
2253 sid = s->session_index;
2254 if (sid < n_bits && read_map)
2256 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2260 case SESSION_CTRL_EVT_CONNECTED:
2263 connected_msg = (session_connected_msg_t *) e->data;
2264 sid = vcl_session_connected_handler (wrk, connected_msg);
2267 sid = e->session_index;
2268 if (sid == VCL_INVALID_SESSION_INDEX)
2270 if (sid < n_bits && write_map)
2272 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2276 case SESSION_CTRL_EVT_DISCONNECTED:
2277 disconnected_msg = (session_disconnected_msg_t *) e->data;
2278 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2281 sid = s->session_index;
2282 if (sid < n_bits && except_map)
2284 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2288 case SESSION_CTRL_EVT_RESET:
2289 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2290 if (sid < n_bits && except_map)
2292 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2296 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2297 vcl_session_unlisten_reply_handler (wrk, e->data);
2299 case SESSION_CTRL_EVT_MIGRATED:
2300 vcl_session_migrated_handler (wrk, e->data);
2302 case SESSION_CTRL_EVT_CLEANUP:
2303 vcl_session_cleanup_handler (wrk, e->data);
2305 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2306 vcl_session_worker_update_reply_handler (wrk, e->data);
2308 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2309 vcl_session_req_worker_update_handler (wrk, e->data);
2311 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2312 vcl_session_app_add_segment_handler (wrk, e->data);
2314 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2315 vcl_session_app_del_segment_handler (wrk, e->data);
2317 case SESSION_CTRL_EVT_APP_WRK_RPC:
2318 vcl_worker_rpc_handler (wrk, e->data);
2321 clib_warning ("unhandled: %u", e->event_type);
2327 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2328 unsigned long n_bits, unsigned long *read_map,
2329 unsigned long *write_map, unsigned long *except_map,
2330 double time_to_wait, u32 * bits_set)
2332 svm_msg_q_msg_t *msg;
2336 if (svm_msg_q_is_empty (mq))
2343 else if (time_to_wait < 0)
2344 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2347 if (svm_msg_q_timedwait (mq, time_to_wait))
2351 vcl_mq_dequeue_batch (wrk, mq, ~0);
2353 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2355 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2356 e = svm_msg_q_msg_data (mq, msg);
2357 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2358 except_map, bits_set);
2359 svm_msg_q_free_msg (mq, msg);
2361 vec_reset_length (wrk->mq_msg_vector);
2362 vcl_handle_pending_wrk_updates (wrk);
2367 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2368 vcl_si_set * read_map, vcl_si_set * write_map,
2369 vcl_si_set * except_map, double time_to_wait,
2372 double wait = 0, start = 0;
2376 wait = time_to_wait;
2377 start = clib_time_now (&wrk->clib_time);
2382 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2383 write_map, except_map, wait, bits_set);
2389 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2397 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2398 vcl_si_set * read_map, vcl_si_set * write_map,
2399 vcl_si_set * except_map, double time_to_wait,
2402 vcl_mq_evt_conn_t *mqc;
2403 int __clib_unused n_read;
2407 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2408 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2409 vec_len (wrk->mq_events), time_to_wait);
2410 for (i = 0; i < n_mq_evts; i++)
2412 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2413 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2414 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2415 except_map, 0, bits_set);
2418 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2422 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2423 vcl_si_set * except_map, double time_to_wait)
2425 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2426 vcl_worker_t *wrk = vcl_worker_get_current ();
2427 vcl_session_t *s = 0;
2430 if (n_bits && read_map)
2432 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2433 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2434 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2435 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2437 if (n_bits && write_map)
2439 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2440 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2441 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2442 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2444 if (n_bits && except_map)
2446 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2447 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2448 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2449 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2458 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2460 if (!(s = vcl_session_get (wrk, sid)))
2462 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2467 if (vcl_session_write_ready (s))
2469 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2474 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2475 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2483 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2485 if (!(s = vcl_session_get (wrk, sid)))
2487 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2492 if (vcl_session_read_ready (s))
2494 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2501 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2503 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2504 read_map, write_map, except_map, &bits_set);
2506 vec_reset_length (wrk->unhandled_evts_vector);
2508 if (vcm->cfg.use_mq_eventfd)
2509 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2510 time_to_wait, &bits_set);
2512 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2513 time_to_wait, &bits_set);
2519 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2521 vppcom_epoll_t *vep;
2522 u32 sh = vep_handle;
2525 if (VPPCOM_DEBUG <= 2)
2528 s = vcl_session_get_w_handle (wrk, vep_handle);
2529 if (PREDICT_FALSE (!s))
2531 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2534 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2536 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2540 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2543 " is_vep_session = %u\n"
2544 " next_sh = 0x%x (%u)\n"
2545 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2546 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2548 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2550 s = vcl_session_get_w_handle (wrk, sh);
2551 if (PREDICT_FALSE (!s))
2553 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2556 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2558 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2560 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2562 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2566 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2567 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2568 sh, s->vep.vep_sh, vep_handle);
2569 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2571 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2573 " next_sh = 0x%x (%u)\n"
2574 " prev_sh = 0x%x (%u)\n"
2575 " vep_sh = 0x%x (%u)\n"
2576 " ev.events = 0x%x\n"
2577 " ev.data.u64 = 0x%llx\n"
2580 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2581 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2582 vep->ev.data.u64, vep->et_mask);
2587 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2591 vppcom_epoll_create (void)
2593 vcl_worker_t *wrk = vcl_worker_get_current ();
2594 vcl_session_t *vep_session;
2596 vep_session = vcl_session_alloc (wrk);
2598 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2599 vep_session->vep.vep_sh = ~0;
2600 vep_session->vep.next_sh = ~0;
2601 vep_session->vep.prev_sh = ~0;
2602 vep_session->vpp_handle = ~0;
2604 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2605 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2607 return vcl_session_handle (vep_session);
2611 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2612 struct epoll_event *event)
2614 vcl_worker_t *wrk = vcl_worker_get_current ();
2615 vcl_session_t *vep_session;
2620 if (vep_handle == session_handle)
2622 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2623 return VPPCOM_EINVAL;
2626 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2627 if (PREDICT_FALSE (!vep_session))
2629 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2630 return VPPCOM_EBADFD;
2632 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2634 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2635 return VPPCOM_EINVAL;
2638 ASSERT (vep_session->vep.vep_sh == ~0);
2639 ASSERT (vep_session->vep.prev_sh == ~0);
2641 s = vcl_session_get_w_handle (wrk, session_handle);
2642 if (PREDICT_FALSE (!s))
2644 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2645 return VPPCOM_EBADFD;
2647 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2649 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2650 return VPPCOM_EINVAL;
2656 if (PREDICT_FALSE (!event))
2658 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2659 return VPPCOM_EINVAL;
2661 if (vep_session->vep.next_sh != ~0)
2663 vcl_session_t *next_session;
2664 next_session = vcl_session_get_w_handle (wrk,
2665 vep_session->vep.next_sh);
2666 if (PREDICT_FALSE (!next_session))
2668 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2669 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2670 return VPPCOM_EBADFD;
2672 ASSERT (next_session->vep.prev_sh == vep_handle);
2673 next_session->vep.prev_sh = session_handle;
2675 s->vep.next_sh = vep_session->vep.next_sh;
2676 s->vep.prev_sh = vep_handle;
2677 s->vep.vep_sh = vep_handle;
2678 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2680 s->flags &= ~VCL_SESSION_F_IS_VEP;
2681 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2682 vep_session->vep.next_sh = session_handle;
2684 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2685 if (txf && (event->events & EPOLLOUT))
2686 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2688 /* Generate EPOLLOUT if tx fifo not full */
2689 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2691 session_event_t e = { 0 };
2692 e.event_type = SESSION_IO_EVT_TX;
2693 e.session_index = s->session_index;
2694 vec_add1 (wrk->unhandled_evts_vector, e);
2696 /* Generate EPOLLIN if rx fifo has data */
2697 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2699 session_event_t e = { 0 };
2700 e.event_type = SESSION_IO_EVT_RX;
2701 e.session_index = s->session_index;
2702 vec_add1 (wrk->unhandled_evts_vector, e);
2704 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2705 vep_handle, session_handle, event->events, event->data.u64);
2706 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2710 if (PREDICT_FALSE (!event))
2712 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2716 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2718 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2722 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2724 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2725 session_handle, s->vep.vep_sh, vep_handle);
2730 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2731 if ((event->events & EPOLLOUT) &&
2732 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2734 session_event_t e = { 0 };
2735 e.event_type = SESSION_IO_EVT_TX;
2736 e.session_index = s->session_index;
2737 vec_add1 (wrk->unhandled_evts_vector, e);
2739 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2741 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2744 if (event->events & EPOLLOUT)
2745 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2747 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2749 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2750 vep_handle, session_handle, event->events, event->data.u64);
2754 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2756 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2760 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2762 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2763 session_handle, s->vep.vep_sh, vep_handle);
2768 if (s->vep.prev_sh == vep_handle)
2769 vep_session->vep.next_sh = s->vep.next_sh;
2772 vcl_session_t *prev_session;
2773 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2774 if (PREDICT_FALSE (!prev_session))
2776 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2777 s->vep.prev_sh, session_handle);
2778 return VPPCOM_EBADFD;
2780 ASSERT (prev_session->vep.next_sh == session_handle);
2781 prev_session->vep.next_sh = s->vep.next_sh;
2783 if (s->vep.next_sh != ~0)
2785 vcl_session_t *next_session;
2786 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2787 if (PREDICT_FALSE (!next_session))
2789 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2790 s->vep.next_sh, session_handle);
2791 return VPPCOM_EBADFD;
2793 ASSERT (next_session->vep.prev_sh == session_handle);
2794 next_session->vep.prev_sh = s->vep.prev_sh;
2797 memset (&s->vep, 0, sizeof (s->vep));
2798 s->vep.next_sh = ~0;
2799 s->vep.prev_sh = ~0;
2801 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2803 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2805 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2807 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2809 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2813 VDBG (0, "Invalid operation (%d)!", op);
2817 vep_verify_epoll_chain (wrk, vep_handle);
2824 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2825 struct epoll_event *events, u32 * num_ev)
2827 session_disconnected_msg_t *disconnected_msg;
2828 session_connected_msg_t *connected_msg;
2829 u32 sid = ~0, session_events;
2830 u64 session_evt_data = ~0;
2834 switch (e->event_type)
2836 case SESSION_IO_EVT_RX:
2837 sid = e->session_index;
2838 s = vcl_session_get (wrk, sid);
2839 if (vcl_session_is_closed (s))
2841 vcl_fifo_rx_evt_valid_or_break (s);
2842 session_events = s->vep.ev.events;
2843 if (!(EPOLLIN & s->vep.ev.events)
2844 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2847 events[*num_ev].events |= EPOLLIN;
2848 session_evt_data = s->vep.ev.data.u64;
2849 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2851 case SESSION_IO_EVT_TX:
2852 sid = e->session_index;
2853 s = vcl_session_get (wrk, sid);
2854 if (vcl_session_is_closed (s))
2856 session_events = s->vep.ev.events;
2857 if (!(EPOLLOUT & session_events))
2860 events[*num_ev].events |= EPOLLOUT;
2861 session_evt_data = s->vep.ev.data.u64;
2862 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2863 s->ct_tx_fifo : s->tx_fifo);
2865 case SESSION_CTRL_EVT_ACCEPTED:
2867 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2869 s = vcl_session_get (wrk, e->session_index);
2872 session_events = s->vep.ev.events;
2873 sid = s->session_index;
2874 if (!(EPOLLIN & session_events))
2877 events[*num_ev].events |= EPOLLIN;
2878 session_evt_data = s->vep.ev.data.u64;
2880 case SESSION_CTRL_EVT_CONNECTED:
2883 connected_msg = (session_connected_msg_t *) e->data;
2884 sid = vcl_session_connected_handler (wrk, connected_msg);
2887 sid = e->session_index;
2888 s = vcl_session_get (wrk, sid);
2889 if (vcl_session_is_closed (s))
2891 session_events = s->vep.ev.events;
2892 /* Generate EPOLLOUT because there's no connected event */
2893 if (!(EPOLLOUT & session_events))
2896 events[*num_ev].events |= EPOLLOUT;
2897 session_evt_data = s->vep.ev.data.u64;
2898 if (s->session_state == VCL_STATE_DETACHED)
2899 events[*num_ev].events |= EPOLLHUP;
2901 case SESSION_CTRL_EVT_DISCONNECTED:
2902 disconnected_msg = (session_disconnected_msg_t *) e->data;
2903 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2904 if (vcl_session_is_closed (s))
2906 sid = s->session_index;
2907 session_events = s->vep.ev.events;
2909 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2910 session_evt_data = s->vep.ev.data.u64;
2912 case SESSION_CTRL_EVT_RESET:
2913 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2914 s = vcl_session_get (wrk, sid);
2915 if (vcl_session_is_closed (s))
2917 session_events = s->vep.ev.events;
2919 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2920 session_evt_data = s->vep.ev.data.u64;
2922 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2923 vcl_session_unlisten_reply_handler (wrk, e->data);
2925 case SESSION_CTRL_EVT_MIGRATED:
2926 vcl_session_migrated_handler (wrk, e->data);
2928 case SESSION_CTRL_EVT_CLEANUP:
2929 vcl_session_cleanup_handler (wrk, e->data);
2931 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2932 vcl_session_req_worker_update_handler (wrk, e->data);
2934 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2935 vcl_session_worker_update_reply_handler (wrk, e->data);
2937 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2938 vcl_session_app_add_segment_handler (wrk, e->data);
2940 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2941 vcl_session_app_del_segment_handler (wrk, e->data);
2943 case SESSION_CTRL_EVT_APP_WRK_RPC:
2944 vcl_worker_rpc_handler (wrk, e->data);
2947 VDBG (0, "unhandled: %u", e->event_type);
2953 events[*num_ev].data.u64 = session_evt_data;
2954 if (EPOLLONESHOT & session_events)
2956 s = vcl_session_get (wrk, sid);
2957 s->vep.ev.events = 0;
2964 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2965 struct epoll_event *events, u32 maxevents,
2966 double wait_for_time, u32 * num_ev)
2968 svm_msg_q_msg_t *msg;
2972 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2973 goto handle_dequeued;
2975 if (svm_msg_q_is_empty (mq))
2979 else if (wait_for_time < 0)
2980 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2983 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2987 ASSERT (maxevents > *num_ev);
2988 vcl_mq_dequeue_batch (wrk, mq, ~0);
2991 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2993 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2994 e = svm_msg_q_msg_data (mq, msg);
2995 if (*num_ev < maxevents)
2996 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2998 vcl_handle_mq_event (wrk, e);
2999 svm_msg_q_free_msg (mq, msg);
3001 vec_reset_length (wrk->mq_msg_vector);
3002 vcl_handle_pending_wrk_updates (wrk);
3007 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
3008 int maxevents, u32 n_evts, double wait_for_time)
3010 double wait = 0, start = 0, now;
3014 wait = wait_for_time;
3015 start = clib_time_now (&wrk->clib_time);
3020 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3027 now = clib_time_now (&wrk->clib_time);
3028 wait -= (now - start) * 1e3;
3037 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3038 int maxevents, u32 n_evts, double wait_for_time)
3040 double wait = 0, start = 0, now;
3041 int __clib_unused n_read;
3042 vcl_mq_evt_conn_t *mqc;
3046 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3049 wait = wait_for_time;
3050 start = clib_time_now (&wrk->clib_time);
3055 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3056 vec_len (wrk->mq_events), wait);
3059 VDBG (0, "epoll_wait error %u", errno);
3063 for (i = 0; i < n_mq_evts; i++)
3065 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3066 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3067 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3076 now = clib_time_now (&wrk->clib_time);
3077 wait -= (now - start) * 1e3;
3086 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3087 int maxevents, double wait_for_time)
3089 vcl_worker_t *wrk = vcl_worker_get_current ();
3090 vcl_session_t *vep_session;
3094 if (PREDICT_FALSE (maxevents <= 0))
3096 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3097 return VPPCOM_EINVAL;
3100 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3102 return VPPCOM_EBADFD;
3104 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3106 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3107 return VPPCOM_EINVAL;
3110 memset (events, 0, sizeof (*events) * maxevents);
3112 if (vec_len (wrk->unhandled_evts_vector))
3114 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3116 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3118 if (n_evts == maxevents)
3120 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3124 vec_reset_length (wrk->unhandled_evts_vector);
3126 /* Request to only drain unhandled */
3127 if ((int) wait_for_time == -2)
3130 if (vcm->cfg.use_mq_eventfd)
3131 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3134 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3139 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3140 void *buffer, uint32_t * buflen)
3142 vcl_worker_t *wrk = vcl_worker_get_current ();
3143 u32 *flags = buffer, tmp_flags = 0;
3144 vppcom_endpt_t *ep = buffer;
3145 transport_endpt_attr_t tea;
3146 vcl_session_t *session;
3149 session = vcl_session_get_w_handle (wrk, session_handle);
3151 return VPPCOM_EBADFD;
3155 case VPPCOM_ATTR_GET_NREAD:
3156 rv = vcl_session_read_ready (session);
3157 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3161 case VPPCOM_ATTR_GET_NWRITE:
3162 rv = vcl_session_write_ready (session);
3163 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3167 case VPPCOM_ATTR_GET_FLAGS:
3168 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3172 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3174 *buflen = sizeof (*flags);
3175 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3176 "is_nonblocking = %u", session_handle, *flags,
3177 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3183 case VPPCOM_ATTR_SET_FLAGS:
3184 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3186 if (*flags & O_NONBLOCK)
3187 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3189 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3191 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3192 " is_nonblocking = %u", session_handle, *flags,
3193 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3199 case VPPCOM_ATTR_GET_PEER_ADDR:
3200 if (PREDICT_TRUE (buffer && buflen &&
3201 (*buflen >= sizeof (*ep)) && ep->ip))
3203 ep->is_ip4 = session->transport.is_ip4;
3204 ep->port = session->transport.rmt_port;
3205 if (session->transport.is_ip4)
3206 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3207 sizeof (ip4_address_t));
3209 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3210 sizeof (ip6_address_t));
3211 *buflen = sizeof (*ep);
3212 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3213 "addr = %U, port %u", session_handle, ep->is_ip4,
3214 format_ip46_address, &session->transport.rmt_ip,
3215 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3216 clib_net_to_host_u16 (ep->port));
3222 case VPPCOM_ATTR_GET_LCL_ADDR:
3223 if (PREDICT_TRUE (buffer && buflen &&
3224 (*buflen >= sizeof (*ep)) && ep->ip))
3226 ep->is_ip4 = session->transport.is_ip4;
3227 ep->port = session->transport.lcl_port;
3228 if (session->transport.is_ip4)
3229 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3230 sizeof (ip4_address_t));
3232 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3233 sizeof (ip6_address_t));
3234 *buflen = sizeof (*ep);
3235 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3236 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3237 &session->transport.lcl_ip,
3238 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3239 clib_net_to_host_u16 (ep->port));
3245 case VPPCOM_ATTR_SET_LCL_ADDR:
3246 if (PREDICT_TRUE (buffer && buflen &&
3247 (*buflen >= sizeof (*ep)) && ep->ip))
3249 session->transport.is_ip4 = ep->is_ip4;
3250 session->transport.lcl_port = ep->port;
3251 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3252 *buflen = sizeof (*ep);
3253 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3254 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3255 &session->transport.lcl_ip,
3256 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3257 clib_net_to_host_u16 (ep->port));
3263 case VPPCOM_ATTR_GET_LIBC_EPFD:
3264 rv = session->libc_epfd;
3265 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3268 case VPPCOM_ATTR_SET_LIBC_EPFD:
3269 if (PREDICT_TRUE (buffer && buflen &&
3270 (*buflen == sizeof (session->libc_epfd))))
3272 session->libc_epfd = *(int *) buffer;
3273 *buflen = sizeof (session->libc_epfd);
3275 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3276 session->libc_epfd, *buflen);
3282 case VPPCOM_ATTR_GET_PROTOCOL:
3283 if (buffer && buflen && (*buflen >= sizeof (int)))
3285 *(int *) buffer = session->session_type;
3286 *buflen = sizeof (int);
3288 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3289 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3295 case VPPCOM_ATTR_GET_LISTEN:
3296 if (buffer && buflen && (*buflen >= sizeof (int)))
3298 *(int *) buffer = vcl_session_has_attr (session,
3299 VCL_SESS_ATTR_LISTEN);
3300 *buflen = sizeof (int);
3302 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3309 case VPPCOM_ATTR_GET_ERROR:
3310 if (buffer && buflen && (*buflen >= sizeof (int)))
3312 *(int *) buffer = 0;
3313 *buflen = sizeof (int);
3315 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3316 *(int *) buffer, *buflen);
3322 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3323 if (buffer && buflen && (*buflen >= sizeof (u32)))
3327 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3329 svm_fifo_size (session->tx_fifo) :
3330 vcm->cfg.tx_fifo_size);
3331 *buflen = sizeof (u32);
3333 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3334 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3341 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3342 if (buffer && buflen && (*buflen == sizeof (u32)))
3345 session->sndbuf_size = *(u32 *) buffer;
3346 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3347 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3354 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3355 if (buffer && buflen && (*buflen >= sizeof (u32)))
3359 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3361 svm_fifo_size (session->rx_fifo) :
3362 vcm->cfg.rx_fifo_size);
3363 *buflen = sizeof (u32);
3365 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3366 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3372 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3373 if (buffer && buflen && (*buflen == sizeof (u32)))
3376 session->rcvbuf_size = *(u32 *) buffer;
3377 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3378 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3385 case VPPCOM_ATTR_GET_REUSEADDR:
3386 if (buffer && buflen && (*buflen >= sizeof (int)))
3389 *(int *) buffer = vcl_session_has_attr (session,
3390 VCL_SESS_ATTR_REUSEADDR);
3391 *buflen = sizeof (int);
3393 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3394 *(int *) buffer, *buflen);
3400 case VPPCOM_ATTR_SET_REUSEADDR:
3401 if (buffer && buflen && (*buflen == sizeof (int)) &&
3402 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3405 if (*(int *) buffer)
3406 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3408 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3410 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3411 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3418 case VPPCOM_ATTR_GET_REUSEPORT:
3419 if (buffer && buflen && (*buflen >= sizeof (int)))
3422 *(int *) buffer = vcl_session_has_attr (session,
3423 VCL_SESS_ATTR_REUSEPORT);
3424 *buflen = sizeof (int);
3426 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3427 *(int *) buffer, *buflen);
3433 case VPPCOM_ATTR_SET_REUSEPORT:
3434 if (buffer && buflen && (*buflen == sizeof (int)) &&
3435 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3438 if (*(int *) buffer)
3439 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3441 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3443 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3444 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3451 case VPPCOM_ATTR_GET_BROADCAST:
3452 if (buffer && buflen && (*buflen >= sizeof (int)))
3455 *(int *) buffer = vcl_session_has_attr (session,
3456 VCL_SESS_ATTR_BROADCAST);
3457 *buflen = sizeof (int);
3459 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3460 *(int *) buffer, *buflen);
3466 case VPPCOM_ATTR_SET_BROADCAST:
3467 if (buffer && buflen && (*buflen == sizeof (int)))
3470 if (*(int *) buffer)
3471 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3473 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3475 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3476 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3483 case VPPCOM_ATTR_GET_V6ONLY:
3484 if (buffer && buflen && (*buflen >= sizeof (int)))
3487 *(int *) buffer = vcl_session_has_attr (session,
3488 VCL_SESS_ATTR_V6ONLY);
3489 *buflen = sizeof (int);
3491 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3492 *(int *) buffer, *buflen);
3498 case VPPCOM_ATTR_SET_V6ONLY:
3499 if (buffer && buflen && (*buflen == sizeof (int)))
3502 if (*(int *) buffer)
3503 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3505 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3507 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3508 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3515 case VPPCOM_ATTR_GET_KEEPALIVE:
3516 if (buffer && buflen && (*buflen >= sizeof (int)))
3519 *(int *) buffer = vcl_session_has_attr (session,
3520 VCL_SESS_ATTR_KEEPALIVE);
3521 *buflen = sizeof (int);
3523 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3524 *(int *) buffer, *buflen);
3530 case VPPCOM_ATTR_SET_KEEPALIVE:
3531 if (buffer && buflen && (*buflen == sizeof (int)))
3534 if (*(int *) buffer)
3535 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3537 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3539 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3540 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3547 case VPPCOM_ATTR_GET_TCP_NODELAY:
3548 if (buffer && buflen && (*buflen >= sizeof (int)))
3551 *(int *) buffer = vcl_session_has_attr (session,
3552 VCL_SESS_ATTR_TCP_NODELAY);
3553 *buflen = sizeof (int);
3555 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3556 *(int *) buffer, *buflen);
3562 case VPPCOM_ATTR_SET_TCP_NODELAY:
3563 if (buffer && buflen && (*buflen == sizeof (int)))
3566 if (*(int *) buffer)
3567 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3569 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3571 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3572 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3579 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3580 if (buffer && buflen && (*buflen >= sizeof (int)))
3583 *(int *) buffer = vcl_session_has_attr (session,
3584 VCL_SESS_ATTR_TCP_KEEPIDLE);
3585 *buflen = sizeof (int);
3587 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3588 *(int *) buffer, *buflen);
3594 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3595 if (buffer && buflen && (*buflen == sizeof (int)))
3598 if (*(int *) buffer)
3599 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3601 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3603 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3604 vcl_session_has_attr (session,
3605 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3611 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3612 if (buffer && buflen && (*buflen >= sizeof (int)))
3615 *(int *) buffer = vcl_session_has_attr (session,
3616 VCL_SESS_ATTR_TCP_KEEPINTVL);
3617 *buflen = sizeof (int);
3619 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3620 *(int *) buffer, *buflen);
3626 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3627 if (buffer && buflen && (*buflen == sizeof (int)))
3630 if (*(int *) buffer)
3631 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3633 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3635 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3636 vcl_session_has_attr (session,
3637 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3643 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3644 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3650 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
3651 tea.mss = *(u32 *) buffer;
3652 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
3653 rv = VPPCOM_ENOPROTOOPT;
3657 *(u32 *) buffer = tea.mss;
3658 *buflen = sizeof (int);
3661 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
3665 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3666 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3672 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
3673 tea.mss = *(u32 *) buffer;
3674 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
3675 rv = VPPCOM_ENOPROTOOPT;
3677 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
3681 case VPPCOM_ATTR_SET_SHUT:
3682 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3683 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3684 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3685 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3688 case VPPCOM_ATTR_GET_SHUT:
3689 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3691 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3694 *(int *) buffer = SHUT_RD;
3695 else if (tmp_flags == 2)
3696 *(int *) buffer = SHUT_WR;
3697 else if (tmp_flags == 3)
3698 *(int *) buffer = SHUT_RDWR;
3699 *buflen = sizeof (int);
3702 case VPPCOM_ATTR_SET_CONNECTED:
3703 session->flags |= VCL_SESSION_F_CONNECTED;
3706 case VPPCOM_ATTR_SET_CKPAIR:
3707 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
3708 !vcl_session_has_crypto (session))
3713 session->ckpair_index = *(uint32_t *) buffer;
3716 case VPPCOM_ATTR_SET_VRF:
3717 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3722 session->vrf = *(u32 *) buffer;
3725 case VPPCOM_ATTR_GET_VRF:
3726 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3731 *(u32 *) buffer = session->vrf;
3732 *buflen = sizeof (u32);
3735 case VPPCOM_ATTR_GET_DOMAIN:
3736 if (!(buffer && buflen && (*buflen >= sizeof (int))))
3742 if (session->transport.is_ip4)
3743 *(int *) buffer = AF_INET;
3745 *(int *) buffer = AF_INET6;
3746 *buflen = sizeof (int);
3748 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
3761 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3762 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3764 vcl_worker_t *wrk = vcl_worker_get_current ();
3765 vcl_session_t *session;
3769 rv = vppcom_session_read (session_handle, buffer, buflen);
3770 else if (flags & MSG_PEEK)
3771 rv = vppcom_session_peek (session_handle, buffer, buflen);
3774 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3775 return VPPCOM_EAFNOSUPPORT;
3780 session = vcl_session_get_w_handle (wrk, session_handle);
3781 if (session->transport.is_ip4)
3782 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3783 sizeof (ip4_address_t));
3785 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3786 sizeof (ip6_address_t));
3787 ep->is_ip4 = session->transport.is_ip4;
3788 ep->port = session->transport.rmt_port;
3795 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3796 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3798 vcl_worker_t *wrk = vcl_worker_get_current ();
3801 s = vcl_session_get_w_handle (wrk, session_handle);
3803 return VPPCOM_EBADFD;
3806 return VPPCOM_EINVAL;
3810 if (!vcl_session_is_cl (s))
3811 return VPPCOM_EINVAL;
3813 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3814 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3816 u32 session_index = s->session_index;
3817 f64 timeout = vcm->cfg.session_timeout;
3820 vcl_send_session_connect (wrk, s);
3821 rv = vppcom_wait_for_session_state_change (session_index,
3826 s = vcl_session_get (wrk, session_index);
3829 s->transport.is_ip4 = ep->is_ip4;
3830 s->transport.rmt_port = ep->port;
3831 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3836 // TBD check the flags and do the right thing
3837 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3840 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3841 s->is_dgram ? 1 : 0));
3845 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3847 vcl_worker_t *wrk = vcl_worker_get_current ();
3848 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3849 u32 i, keep_trying = 1;
3850 svm_msg_q_msg_t msg;
3854 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3857 return VPPCOM_EFAULT;
3861 vcl_session_t *session;
3863 /* Dequeue all events and drop all unhandled io events */
3864 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3866 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3867 vcl_handle_mq_event (wrk, e);
3868 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3870 vec_reset_length (wrk->unhandled_evts_vector);
3872 for (i = 0; i < n_sids; i++)
3874 session = vcl_session_get (wrk, vp[i].sh);
3877 vp[i].revents = POLLHUP;
3884 if (POLLIN & vp[i].events)
3886 rv = vcl_session_read_ready (session);
3889 vp[i].revents |= POLLIN;
3896 case VPPCOM_ECONNRESET:
3897 vp[i].revents = POLLHUP;
3901 vp[i].revents = POLLERR;
3908 if (POLLOUT & vp[i].events)
3910 rv = vcl_session_write_ready (session);
3913 vp[i].revents |= POLLOUT;
3920 case VPPCOM_ECONNRESET:
3921 vp[i].revents = POLLHUP;
3925 vp[i].revents = POLLERR;
3932 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3934 vp[i].revents = POLLNVAL;
3938 if (wait_for_time != -1)
3939 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3941 while ((num_ev == 0) && keep_trying);
3947 vppcom_mq_epoll_fd (void)
3949 vcl_worker_t *wrk = vcl_worker_get_current ();
3950 return wrk->mqs_epfd;
3954 vppcom_session_index (vcl_session_handle_t session_handle)
3956 return session_handle & 0xFFFFFF;
3960 vppcom_session_worker (vcl_session_handle_t session_handle)
3962 return session_handle >> 24;
3966 vppcom_worker_register (void)
3968 if (!vcl_worker_alloc_and_init ())
3969 return VPPCOM_EEXIST;
3971 if (vcl_worker_register_with_vpp ())
3972 return VPPCOM_EEXIST;
3978 vppcom_worker_unregister (void)
3980 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3981 vcl_set_worker_index (~0);
3985 vppcom_worker_index_set (int index)
3987 vcl_set_worker_index (index);
3991 vppcom_worker_index (void)
3993 return vcl_get_worker_index ();
3997 vppcom_worker_mqs_epfd (void)
3999 vcl_worker_t *wrk = vcl_worker_get_current ();
4000 if (!vcm->cfg.use_mq_eventfd)
4002 return wrk->mqs_epfd;
4006 vppcom_session_is_connectable_listener (uint32_t session_handle)
4008 vcl_session_t *session;
4009 vcl_worker_t *wrk = vcl_worker_get_current ();
4010 session = vcl_session_get_w_handle (wrk, session_handle);
4012 return VPPCOM_EBADFD;
4013 return vcl_session_is_connectable_listener (wrk, session);
4017 vppcom_session_listener (uint32_t session_handle)
4019 vcl_worker_t *wrk = vcl_worker_get_current ();
4020 vcl_session_t *listen_session, *session;
4021 session = vcl_session_get_w_handle (wrk, session_handle);
4023 return VPPCOM_EBADFD;
4024 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
4025 return VPPCOM_EBADFD;
4026 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4027 if (!listen_session)
4028 return VPPCOM_EBADFD;
4029 return vcl_session_handle (listen_session);
4033 vppcom_session_n_accepted (uint32_t session_handle)
4035 vcl_worker_t *wrk = vcl_worker_get_current ();
4036 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4038 return VPPCOM_EBADFD;
4039 return session->n_accepted_sessions;
4043 vppcom_proto_str (vppcom_proto_t proto)
4045 char const *proto_str;
4049 case VPPCOM_PROTO_TCP:
4052 case VPPCOM_PROTO_UDP:
4055 case VPPCOM_PROTO_TLS:
4058 case VPPCOM_PROTO_QUIC:
4061 case VPPCOM_PROTO_DTLS:
4065 proto_str = "UNKNOWN";
4072 vppcom_retval_str (int retval)
4083 st = "VPPCOM_EAGAIN";
4087 st = "VPPCOM_EFAULT";
4091 st = "VPPCOM_ENOMEM";
4095 st = "VPPCOM_EINVAL";
4099 st = "VPPCOM_EBADFD";
4102 case VPPCOM_EAFNOSUPPORT:
4103 st = "VPPCOM_EAFNOSUPPORT";
4106 case VPPCOM_ECONNABORTED:
4107 st = "VPPCOM_ECONNABORTED";
4110 case VPPCOM_ECONNRESET:
4111 st = "VPPCOM_ECONNRESET";
4114 case VPPCOM_ENOTCONN:
4115 st = "VPPCOM_ENOTCONN";
4118 case VPPCOM_ECONNREFUSED:
4119 st = "VPPCOM_ECONNREFUSED";
4122 case VPPCOM_ETIMEDOUT:
4123 st = "VPPCOM_ETIMEDOUT";
4127 st = "UNKNOWN_STATE";
4135 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4137 if (vcm->cfg.vpp_app_socket_api)
4139 clib_warning ("not supported");
4140 return VPPCOM_EINVAL;
4142 return vcl_bapi_add_cert_key_pair (ckpair);
4146 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4148 if (vcm->cfg.vpp_app_socket_api)
4150 clib_warning ("not supported");
4151 return VPPCOM_EINVAL;
4153 return vcl_bapi_del_cert_key_pair (ckpair_index);
4157 * fd.io coding-style-patch-verification: ON
4160 * eval: (c-set-style "gnu")