2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
28 u32 n_msgs = 0, sz, len;
30 while ((sz = svm_msg_q_size (mq)))
32 len = vec_len (wrk->mq_msg_vector);
33 vec_validate (wrk->mq_msg_vector, len + sz - 1);
34 svm_msg_q_sub_raw_batch (mq, wrk->mq_msg_vector + len, sz);
41 vppcom_session_state_str (vcl_session_state_t state)
47 case VCL_STATE_CLOSED:
50 case VCL_STATE_LISTEN:
56 case VCL_STATE_VPP_CLOSING:
57 st = "STATE_VPP_CLOSING";
59 case VCL_STATE_DISCONNECT:
60 st = "STATE_DISCONNECT";
62 case VCL_STATE_DETACHED:
63 st = "STATE_DETACHED";
65 case VCL_STATE_UPDATED:
68 case VCL_STATE_LISTEN_NO_MQ:
69 st = "STATE_LISTEN_NO_MQ";
80 format_ip4_address (u8 * s, va_list * args)
82 u8 *a = va_arg (*args, u8 *);
83 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
87 format_ip6_address (u8 * s, va_list * args)
89 ip6_address_t *a = va_arg (*args, ip6_address_t *);
90 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
92 i_max_n_zero = ARRAY_LEN (a->as_u16);
94 i_first_zero = i_max_n_zero;
96 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
98 u32 is_zero = a->as_u16[i] == 0;
99 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
105 if ((!is_zero && n_zeros > max_n_zeros)
106 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
108 i_max_n_zero = i_first_zero;
109 max_n_zeros = n_zeros;
110 i_first_zero = ARRAY_LEN (a->as_u16);
115 last_double_colon = 0;
116 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
118 if (i == i_max_n_zero && max_n_zeros > 1)
120 s = format (s, "::");
121 i += max_n_zeros - 1;
122 last_double_colon = 1;
126 s = format (s, "%s%x",
127 (last_double_colon || i == 0) ? "" : ":",
128 clib_net_to_host_u16 (a->as_u16[i]));
129 last_double_colon = 0;
136 /* Format an IP46 address. */
138 format_ip46_address (u8 * s, va_list * args)
140 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
141 ip46_type_t type = va_arg (*args, ip46_type_t);
147 is_ip4 = ip46_address_is_ip4 (ip46);
158 format (s, "%U", format_ip4_address, &ip46->ip4) :
159 format (s, "%U", format_ip6_address, &ip46->ip6);
163 * VPPCOM Utility Functions
167 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
169 app_session_evt_t _app_evt, *app_evt = &_app_evt;
170 session_listen_msg_t *mp;
173 mq = vcl_worker_ctrl_mq (wrk);
174 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
175 mp = (session_listen_msg_t *) app_evt->evt->data;
176 memset (mp, 0, sizeof (*mp));
177 mp->client_index = wrk->api_client_handle;
178 mp->context = s->session_index;
179 mp->wrk_index = wrk->vpp_wrk_index;
180 mp->is_ip4 = s->transport.is_ip4;
181 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
182 mp->port = s->transport.lcl_port;
183 mp->proto = s->session_type;
184 mp->ckpair_index = s->ckpair_index;
186 if (s->flags & VCL_SESSION_F_CONNECTED)
187 mp->flags = TRANSPORT_CFG_F_CONNECTED;
188 app_send_ctrl_evt_to_vpp (mq, app_evt);
192 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
194 app_session_evt_t _app_evt, *app_evt = &_app_evt;
195 session_connect_msg_t *mp;
198 mq = vcl_worker_ctrl_mq (wrk);
199 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
200 mp = (session_connect_msg_t *) app_evt->evt->data;
201 memset (mp, 0, sizeof (*mp));
202 mp->client_index = wrk->api_client_handle;
203 mp->context = s->session_index;
204 mp->wrk_index = wrk->vpp_wrk_index;
205 mp->is_ip4 = s->transport.is_ip4;
206 mp->parent_handle = s->parent_handle;
207 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
208 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
209 mp->port = s->transport.rmt_port;
210 mp->lcl_port = s->transport.lcl_port;
211 mp->proto = s->session_type;
212 mp->ckpair_index = s->ckpair_index;
214 if (s->flags & VCL_SESSION_F_CONNECTED)
215 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
216 app_send_ctrl_evt_to_vpp (mq, app_evt);
220 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
222 app_session_evt_t _app_evt, *app_evt = &_app_evt;
223 session_unlisten_msg_t *mp;
226 mq = vcl_worker_ctrl_mq (wrk);
227 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
228 mp = (session_unlisten_msg_t *) app_evt->evt->data;
229 memset (mp, 0, sizeof (*mp));
230 mp->client_index = wrk->api_client_handle;
231 mp->wrk_index = wrk->vpp_wrk_index;
232 mp->handle = s->vpp_handle;
233 mp->context = wrk->wrk_index;
234 app_send_ctrl_evt_to_vpp (mq, app_evt);
238 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
240 app_session_evt_t _app_evt, *app_evt = &_app_evt;
241 session_disconnect_msg_t *mp;
244 /* Send to thread that owns the session */
246 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
247 mp = (session_disconnect_msg_t *) app_evt->evt->data;
248 memset (mp, 0, sizeof (*mp));
249 mp->client_index = wrk->api_client_handle;
250 mp->handle = s->vpp_handle;
251 app_send_ctrl_evt_to_vpp (mq, app_evt);
255 vcl_send_app_detach (vcl_worker_t * wrk)
257 app_session_evt_t _app_evt, *app_evt = &_app_evt;
258 session_app_detach_msg_t *mp;
261 mq = vcl_worker_ctrl_mq (wrk);
262 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
263 mp = (session_app_detach_msg_t *) app_evt->evt->data;
264 memset (mp, 0, sizeof (*mp));
265 mp->client_index = wrk->api_client_handle;
266 app_send_ctrl_evt_to_vpp (mq, app_evt);
270 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
271 session_handle_t handle, int retval)
273 app_session_evt_t _app_evt, *app_evt = &_app_evt;
274 session_accepted_reply_msg_t *rmp;
275 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
276 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
277 rmp->handle = handle;
278 rmp->context = context;
279 rmp->retval = retval;
280 app_send_ctrl_evt_to_vpp (mq, app_evt);
284 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
287 app_session_evt_t _app_evt, *app_evt = &_app_evt;
288 session_disconnected_reply_msg_t *rmp;
289 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
290 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
291 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
292 rmp->handle = s->vpp_handle;
293 rmp->context = wrk->api_client_handle;
294 rmp->retval = retval;
295 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
299 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
302 app_session_evt_t _app_evt, *app_evt = &_app_evt;
303 session_reset_reply_msg_t *rmp;
304 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
305 SESSION_CTRL_EVT_RESET_REPLY);
306 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
307 rmp->handle = s->vpp_handle;
308 rmp->context = wrk->api_client_handle;
309 rmp->retval = retval;
310 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
314 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
317 app_session_evt_t _app_evt, *app_evt = &_app_evt;
318 session_worker_update_msg_t *mp;
320 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
321 SESSION_CTRL_EVT_WORKER_UPDATE);
322 mp = (session_worker_update_msg_t *) app_evt->evt->data;
323 mp->client_index = wrk->api_client_handle;
324 mp->handle = s->vpp_handle;
325 mp->req_wrk_index = wrk->vpp_wrk_index;
326 mp->wrk_index = wrk_index;
327 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
331 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
333 app_session_evt_t _app_evt, *app_evt = &_app_evt;
334 session_app_wrk_rpc_msg_t *mp;
335 vcl_worker_t *dst_wrk, *wrk;
339 if (data_len > sizeof (mp->data))
342 clib_spinlock_lock (&vcm->workers_lock);
344 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
348 wrk = vcl_worker_get_current ();
349 mq = vcl_worker_ctrl_mq (wrk);
350 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
351 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
352 mp->client_index = wrk->api_client_handle;
353 mp->wrk_index = dst_wrk->vpp_wrk_index;
354 clib_memcpy (mp->data, data, data_len);
355 app_send_ctrl_evt_to_vpp (mq, app_evt);
359 clib_spinlock_unlock (&vcm->workers_lock);
364 vcl_session_transport_attr (vcl_worker_t *wrk, vcl_session_t *s, u8 is_get,
365 transport_endpt_attr_t *attr)
367 app_session_evt_t _app_evt, *app_evt = &_app_evt;
368 session_transport_attr_msg_t *mp;
372 ASSERT (!wrk->session_attr_op);
373 wrk->session_attr_op = 1;
374 wrk->session_attr_op_rv = -1;
377 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_TRANSPORT_ATTR);
378 mp = (session_transport_attr_msg_t *) app_evt->evt->data;
379 memset (mp, 0, sizeof (*mp));
380 mp->client_index = wrk->api_client_handle;
381 mp->handle = s->vpp_handle;
384 app_send_ctrl_evt_to_vpp (mq, app_evt);
386 timeout = clib_time_now (&wrk->clib_time) + 1;
388 while (wrk->session_attr_op && clib_time_now (&wrk->clib_time) < timeout)
389 vcl_flush_mq_events ();
391 if (!wrk->session_attr_op_rv && is_get)
392 *attr = wrk->session_attr_rv;
394 wrk->session_attr_op = 0;
396 return wrk->session_attr_op_rv;
400 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
403 vcl_session_t *session, *listen_session;
406 session = vcl_session_alloc (wrk);
408 listen_session = vcl_session_get (wrk, ls_index);
409 if (listen_session->vpp_handle != mp->listener_handle)
411 VDBG (0, "ERROR: listener handle %lu does not match session %u",
412 mp->listener_handle, ls_index);
416 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
418 mp->vpp_event_queue_address, 0, session))
420 VDBG (0, "failed to attach fifos for %u", session->session_index);
424 session->vpp_handle = mp->handle;
425 session->session_state = VCL_STATE_READY;
426 session->transport.rmt_port = mp->rmt.port;
427 session->transport.is_ip4 = mp->rmt.is_ip4;
428 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
429 sizeof (ip46_address_t));
431 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
432 session->transport.lcl_port = listen_session->transport.lcl_port;
433 session->transport.lcl_ip = listen_session->transport.lcl_ip;
434 session->session_type = listen_session->session_type;
435 session->is_dgram = vcl_proto_is_dgram (session->session_type);
436 session->listener_index = listen_session->session_index;
437 listen_session->n_accepted_sessions++;
439 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
440 " port %d queue %p!", session->session_index, mp->handle,
441 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
442 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
443 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
444 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
446 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
447 session->vpp_handle, 0);
449 return session->session_index;
452 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
453 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
454 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
455 VNET_API_ERROR_INVALID_ARGUMENT);
456 vcl_session_free (wrk, session);
457 return VCL_INVALID_SESSION_INDEX;
461 vcl_session_connected_handler (vcl_worker_t * wrk,
462 session_connected_msg_t * mp)
464 vcl_session_t *session = 0;
467 session_index = mp->context;
468 session = vcl_session_get (wrk, session_index);
471 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
472 mp->handle, session_index);
473 return VCL_INVALID_SESSION_INDEX;
477 VDBG (0, "ERROR: session index %u: connect failed! %U",
478 session_index, format_session_error, mp->retval);
479 session->session_state = VCL_STATE_DETACHED;
480 session->vpp_handle = mp->handle;
481 return session_index;
484 session->vpp_handle = mp->handle;
486 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
488 mp->vpp_event_queue_address, 0, session))
490 VDBG (0, "failed to attach fifos for %u", session->session_index);
491 session->session_state = VCL_STATE_DETACHED;
492 vcl_send_session_disconnect (wrk, session);
493 return session_index;
498 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
499 mp->ct_tx_fifo, (uword) ~0, 1, session))
501 VDBG (0, "failed to attach ct fifos for %u", session->session_index);
502 session->session_state = VCL_STATE_DETACHED;
503 vcl_send_session_disconnect (wrk, session);
504 return session_index;
508 session->transport.is_ip4 = mp->lcl.is_ip4;
509 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
510 sizeof (session->transport.lcl_ip));
511 session->transport.lcl_port = mp->lcl.port;
513 /* Application closed session before connect reply */
514 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
515 && session->session_state == VCL_STATE_CLOSED)
516 vcl_send_session_disconnect (wrk, session);
518 session->session_state = VCL_STATE_READY;
520 /* Add it to lookup table */
521 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
523 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
524 " refcnt %d", session_index, mp->handle, session->rx_fifo,
525 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
527 return session_index;
531 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
533 vcl_session_msg_t *accepted_msg;
536 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
538 accepted_msg = &session->accept_evts_fifo[i];
539 if (accepted_msg->accepted_msg.handle == handle)
541 accepted_msg->flags |= flags;
549 vcl_session_reset_handler (vcl_worker_t * wrk,
550 session_reset_msg_t * reset_msg)
552 vcl_session_t *session;
555 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
556 session = vcl_session_get (wrk, sid);
559 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
560 return VCL_INVALID_SESSION_INDEX;
563 /* Caught a reset before actually accepting the session */
564 if (session->session_state == VCL_STATE_LISTEN)
567 if (!vcl_flag_accepted_session (session, reset_msg->handle,
568 VCL_ACCEPTED_F_RESET))
569 VDBG (0, "session was not accepted!");
570 return VCL_INVALID_SESSION_INDEX;
573 if (session->session_state != VCL_STATE_CLOSED)
574 session->session_state = VCL_STATE_DISCONNECT;
575 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
580 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
582 vcl_session_t *session;
583 u32 sid = mp->context;
585 session = vcl_session_get (wrk, sid);
588 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
589 format_session_error, mp->retval);
592 session->session_state = VCL_STATE_DETACHED;
593 session->vpp_handle = mp->handle;
598 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
600 return VCL_INVALID_SESSION_INDEX;
604 session->vpp_handle = mp->handle;
605 session->transport.is_ip4 = mp->lcl_is_ip4;
606 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
607 sizeof (ip46_address_t));
608 session->transport.lcl_port = mp->lcl_port;
609 vcl_session_table_add_listener (wrk, mp->handle, sid);
610 session->session_state = VCL_STATE_LISTEN;
612 if (vcl_session_is_cl (session))
614 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
615 mp->tx_fifo, mp->vpp_evt_q, 0, session))
617 VDBG (0, "failed to attach fifos for %u", session->session_index);
618 session->session_state = VCL_STATE_DETACHED;
619 return VCL_INVALID_SESSION_INDEX;
623 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
628 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
630 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
633 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
636 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
639 if (s->session_state != VCL_STATE_DISCONNECT)
641 /* Connected udp listener */
642 if (s->session_type == VPPCOM_PROTO_UDP
643 && s->session_state == VCL_STATE_CLOSED)
646 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
651 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
652 s->session_index, mp->handle, format_session_error, mp->retval);
654 if (mp->context != wrk->wrk_index)
655 VDBG (0, "wrong context");
657 vcl_session_table_del_vpp_handle (wrk, mp->handle);
658 vcl_session_free (wrk, s);
662 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
664 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
668 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
671 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
675 /* Only validate if a value is provided */
676 if (mp->segment_handle != SESSION_INVALID_HANDLE)
678 fs_index = vcl_segment_table_lookup (mp->segment_handle);
679 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
681 VDBG (0, "segment %lx for session %u is not mounted!",
682 mp->segment_handle, s->session_index);
683 s->session_state = VCL_STATE_DETACHED;
688 s->vpp_handle = mp->new_handle;
690 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
691 mp->vpp_thread_index, &s->vpp_evt_q);
693 vcl_session_table_del_vpp_handle (wrk, mp->handle);
694 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
696 /* Generate new tx event if we have outstanding data */
697 if (svm_fifo_has_event (s->tx_fifo))
698 app_send_io_evt_to_vpp (s->vpp_evt_q,
699 s->tx_fifo->shr->master_session_index,
700 SESSION_IO_EVT_TX, SVM_Q_WAIT);
702 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
703 mp->vpp_thread_index, mp->new_handle);
706 static vcl_session_t *
707 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
709 vcl_session_msg_t *vcl_msg;
710 vcl_session_t *session;
712 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
713 if (PREDICT_FALSE (session != 0))
714 VWRN ("session overlap handle %lu state %u!", msg->handle,
715 session->session_state);
717 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
720 VERR ("couldn't find listen session: listener handle %llx",
721 msg->listener_handle);
725 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
727 vcl_msg->accepted_msg = *msg;
728 /* Session handle points to listener until fully accepted by app */
729 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
734 static vcl_session_t *
735 vcl_session_disconnected_handler (vcl_worker_t * wrk,
736 session_disconnected_msg_t * msg)
738 vcl_session_t *session;
740 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
743 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
747 /* Late disconnect notification on a session that has been closed */
748 if (session->session_state == VCL_STATE_CLOSED)
751 /* Caught a disconnect before actually accepting the session */
752 if (session->session_state == VCL_STATE_LISTEN)
754 if (!vcl_flag_accepted_session (session, msg->handle,
755 VCL_ACCEPTED_F_CLOSED))
756 VDBG (0, "session was not accepted!");
760 /* If not already reset change state */
761 if (session->session_state != VCL_STATE_DISCONNECT)
762 session->session_state = VCL_STATE_VPP_CLOSING;
768 vppcom_session_disconnect (u32 session_handle)
770 vcl_worker_t *wrk = vcl_worker_get_current ();
771 vcl_session_t *session, *listen_session;
772 vcl_session_state_t state;
775 session = vcl_session_get_w_handle (wrk, session_handle);
777 return VPPCOM_EBADFD;
779 vpp_handle = session->vpp_handle;
780 state = session->session_state;
782 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
783 vpp_handle, state, vppcom_session_state_str (state));
785 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
787 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
788 return VPPCOM_EBADFD;
791 if (state == VCL_STATE_VPP_CLOSING)
793 vcl_send_session_disconnected_reply (wrk, session, 0);
794 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
795 session->session_index, vpp_handle);
799 /* Session doesn't have an event queue yet. Probably a non-blocking
800 * connect. Wait for the reply */
801 if (PREDICT_FALSE (!session->vpp_evt_q))
804 VDBG (1, "session %u [0x%llx]: sending disconnect...",
805 session->session_index, vpp_handle);
806 vcl_send_session_disconnect (wrk, session);
809 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
811 listen_session = vcl_session_get (wrk, session->listener_index);
812 listen_session->n_accepted_sessions--;
819 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
821 session_cleanup_msg_t *msg;
822 vcl_session_t *session;
824 msg = (session_cleanup_msg_t *) data;
825 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
828 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
832 if (msg->type == SESSION_CLEANUP_TRANSPORT)
834 /* Transport was cleaned up before we confirmed close. Probably the
835 * app is still waiting for some data that cannot be delivered.
836 * Confirm close to make sure everything is cleaned up.
837 * Move to undetermined state to ensure that the session is not
838 * removed before both vpp and the app cleanup.
839 * - If the app closes first, the session is moved to CLOSED state
840 * and the session cleanup notification from vpp removes the
842 * - If vpp cleans up the session first, the session is moved to
843 * DETACHED state lower and subsequently the close from the app
846 if (session->session_state == VCL_STATE_VPP_CLOSING)
848 vppcom_session_disconnect (vcl_session_handle (session));
849 session->session_state = VCL_STATE_UPDATED;
851 else if (session->session_state == VCL_STATE_DISCONNECT)
853 vcl_send_session_reset_reply (wrk, session, 0);
854 session->session_state = VCL_STATE_UPDATED;
859 vcl_session_table_del_vpp_handle (wrk, msg->handle);
860 /* Should not happen. App did not close the connection so don't free it. */
861 if (session->session_state != VCL_STATE_CLOSED)
863 VDBG (0, "app did not close session %d", session->session_index);
864 session->session_state = VCL_STATE_DETACHED;
865 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
868 vcl_session_free (wrk, session);
872 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
874 session_req_worker_update_msg_t *msg;
877 msg = (session_req_worker_update_msg_t *) data;
878 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
882 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
886 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
888 session_worker_update_reply_msg_t *msg;
891 msg = (session_worker_update_reply_msg_t *) data;
892 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
895 VDBG (0, "unknown handle 0x%llx", msg->handle);
901 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
902 msg->tx_fifo, (uword) ~0, 0, s))
904 VDBG (0, "failed to attach fifos for %u", s->session_index);
908 s->session_state = VCL_STATE_UPDATED;
910 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
911 s->vpp_handle, wrk->wrk_index);
915 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
918 if (vcm->cfg.vpp_app_socket_api)
919 return vcl_sapi_recv_fds (wrk, fds, n_fds);
921 return vcl_bapi_recv_fds (wrk, fds, n_fds);
925 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
927 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
928 session_app_add_segment_msg_t *msg;
932 msg = (session_app_add_segment_msg_t *) data;
936 vcl_api_recv_fd (wrk, &fd, 1);
937 seg_type = SSVM_SEGMENT_MEMFD;
940 segment_handle = msg->segment_handle;
941 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
943 clib_warning ("invalid segment handle");
947 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
950 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
954 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
959 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
961 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
962 vcl_segment_detach (msg->segment_handle);
963 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
967 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
969 if (!vcm->wrk_rpc_fn)
972 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
976 vcl_session_transport_attr_reply_handler (vcl_worker_t *wrk, void *data)
978 session_transport_attr_reply_msg_t *mp;
980 if (!wrk->session_attr_op)
983 mp = (session_transport_attr_reply_msg_t *) data;
985 wrk->session_attr_op_rv = mp->retval;
986 wrk->session_attr_op = 0;
987 wrk->session_attr_rv = mp->attr;
991 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
993 session_disconnected_msg_t *disconnected_msg;
994 session_connected_msg_t *connected_msg;
995 session_reset_msg_t *reset_msg;
996 session_event_t *ecpy;
1000 switch (e->event_type)
1002 case SESSION_IO_EVT_RX:
1003 case SESSION_IO_EVT_TX:
1004 s = vcl_session_get (wrk, e->session_index);
1005 if (!s || !vcl_session_is_open (s))
1007 vec_add1 (wrk->unhandled_evts_vector, *e);
1009 case SESSION_CTRL_EVT_BOUND:
1010 /* We can only wait for only one listen so not postponed */
1011 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1013 case SESSION_CTRL_EVT_ACCEPTED:
1014 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1015 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1017 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1019 ecpy->postponed = 1;
1020 ecpy->session_index = s->session_index;
1023 case SESSION_CTRL_EVT_CONNECTED:
1024 connected_msg = (session_connected_msg_t *) e->data;
1025 sid = vcl_session_connected_handler (wrk, connected_msg);
1026 if (!(s = vcl_session_get (wrk, sid)))
1028 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1030 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1032 ecpy->postponed = 1;
1033 ecpy->session_index = s->session_index;
1036 case SESSION_CTRL_EVT_DISCONNECTED:
1037 disconnected_msg = (session_disconnected_msg_t *) e->data;
1038 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1040 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1042 vec_add1 (wrk->unhandled_evts_vector, *e);
1045 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1047 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1050 case SESSION_CTRL_EVT_RESET:
1051 reset_msg = (session_reset_msg_t *) e->data;
1052 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1054 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1056 vec_add1 (wrk->unhandled_evts_vector, *e);
1059 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1061 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1062 vcl_session_unlisten_reply_handler (wrk, e->data);
1064 case SESSION_CTRL_EVT_MIGRATED:
1065 vcl_session_migrated_handler (wrk, e->data);
1067 case SESSION_CTRL_EVT_CLEANUP:
1068 vcl_session_cleanup_handler (wrk, e->data);
1070 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1071 vcl_session_req_worker_update_handler (wrk, e->data);
1073 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1074 vcl_session_worker_update_reply_handler (wrk, e->data);
1076 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1077 vcl_session_app_add_segment_handler (wrk, e->data);
1079 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1080 vcl_session_app_del_segment_handler (wrk, e->data);
1082 case SESSION_CTRL_EVT_APP_WRK_RPC:
1083 vcl_worker_rpc_handler (wrk, e->data);
1085 case SESSION_CTRL_EVT_TRANSPORT_ATTR_REPLY:
1086 vcl_session_transport_attr_reply_handler (wrk, e->data);
1089 clib_warning ("unhandled %u", e->event_type);
1095 vppcom_wait_for_session_state_change (u32 session_index,
1096 vcl_session_state_t state,
1099 vcl_worker_t *wrk = vcl_worker_get_current ();
1100 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1101 vcl_session_t *volatile session;
1102 svm_msg_q_msg_t msg;
1107 session = vcl_session_get (wrk, session_index);
1108 if (PREDICT_FALSE (!session))
1110 return VPPCOM_EBADFD;
1112 if (session->session_state == state)
1116 if (session->session_state == VCL_STATE_DETACHED)
1118 return VPPCOM_ECONNREFUSED;
1121 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1126 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1127 vcl_handle_mq_event (wrk, e);
1128 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1130 while (clib_time_now (&wrk->clib_time) < timeout);
1132 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1133 vppcom_session_state_str (state));
1134 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1136 return VPPCOM_ETIMEDOUT;
1140 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1142 vcl_session_state_t state;
1146 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1149 vec_foreach (sip, wrk->pending_session_wrk_updates)
1151 s = vcl_session_get (wrk, *sip);
1152 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1153 state = s->session_state;
1154 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1156 s->session_state = state;
1158 vec_reset_length (wrk->pending_session_wrk_updates);
1162 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1164 svm_msg_q_msg_t *msg;
1169 mq = wrk->app_event_queue;
1170 vcl_mq_dequeue_batch (wrk, mq, ~0);
1172 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1174 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1175 e = svm_msg_q_msg_data (mq, msg);
1176 vcl_handle_mq_event (wrk, e);
1177 svm_msg_q_free_msg (mq, msg);
1179 vec_reset_length (wrk->mq_msg_vector);
1180 vcl_handle_pending_wrk_updates (wrk);
1184 vcl_flush_mq_events (void)
1186 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1190 vppcom_session_unbind (u32 session_handle)
1192 vcl_worker_t *wrk = vcl_worker_get_current ();
1193 session_accepted_msg_t *accepted_msg;
1194 vcl_session_t *session = 0;
1195 vcl_session_msg_t *evt;
1197 session = vcl_session_get_w_handle (wrk, session_handle);
1199 return VPPCOM_EBADFD;
1201 /* Flush pending accept events, if any */
1202 while (clib_fifo_elts (session->accept_evts_fifo))
1204 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1205 accepted_msg = &evt->accepted_msg;
1206 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1207 vcl_send_session_accepted_reply (session->vpp_evt_q,
1208 accepted_msg->context,
1209 accepted_msg->handle, -1);
1211 clib_fifo_free (session->accept_evts_fifo);
1213 vcl_send_session_unlisten (wrk, session);
1215 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1216 session->vpp_handle);
1217 vcl_evt (VCL_EVT_UNBIND, session);
1219 session->vpp_handle = ~0;
1220 session->session_state = VCL_STATE_DISCONNECT;
1228 * Notify vpp of the disconnect and mark the worker as free. If we're the
1229 * last worker, do a full cleanup otherwise, since we're probably a forked
1230 * child, avoid syscalls as much as possible. We might've lost privileges.
1233 vppcom_app_exit (void)
1235 if (!pool_elts (vcm->workers))
1237 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1238 vcl_set_worker_index (~0);
1239 vcl_elog_stop (vcm);
1243 vcl_api_attach (void)
1245 if (vcm->cfg.vpp_app_socket_api)
1246 return vcl_sapi_attach ();
1248 return vcl_bapi_attach ();
1252 vcl_api_detach (vcl_worker_t * wrk)
1254 vcl_send_app_detach (wrk);
1256 if (vcm->cfg.vpp_app_socket_api)
1257 return vcl_sapi_detach (wrk);
1259 return vcl_bapi_disconnect_from_vpp ();
1263 * VPPCOM Public API functions
1266 vppcom_app_create (const char *app_name)
1268 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1273 VDBG (1, "already initialized");
1274 return VPPCOM_EEXIST;
1278 vppcom_cfg (&vcm->cfg);
1279 vcl_cfg = &vcm->cfg;
1281 vcm->main_cpu = pthread_self ();
1282 vcm->main_pid = getpid ();
1283 vcm->app_name = format (0, "%s", app_name);
1284 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1285 20 /* timeout in secs */ );
1286 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1287 clib_spinlock_init (&vcm->workers_lock);
1288 clib_rwlock_init (&vcm->segment_table_lock);
1289 atexit (vppcom_app_exit);
1290 vcl_elog_init (vcm);
1292 /* Allocate default worker */
1293 vcl_worker_alloc_and_init ();
1295 if ((rv = vcl_api_attach ()))
1298 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1299 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1305 vppcom_app_destroy (void)
1307 vcl_worker_t *wrk, *current_wrk;
1310 if (!pool_elts (vcm->workers))
1313 vcl_evt (VCL_EVT_DETACH, vcm);
1315 current_wrk = vcl_worker_get_current ();
1318 pool_foreach (wrk, vcm->workers) {
1319 if (current_wrk != wrk)
1320 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1324 vcl_api_detach (current_wrk);
1325 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1327 vcl_elog_stop (vcm);
1330 * Free the heap and fix vcm
1332 heap = clib_mem_get_heap ();
1333 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1335 vcm = &_vppcom_main;
1340 vppcom_session_create (u8 proto, u8 is_nonblocking)
1342 vcl_worker_t *wrk = vcl_worker_get_current ();
1343 vcl_session_t *session;
1345 session = vcl_session_alloc (wrk);
1347 session->session_type = proto;
1348 session->session_state = VCL_STATE_CLOSED;
1349 session->vpp_handle = ~0;
1350 session->ckpair_index = ~0;
1351 session->is_dgram = vcl_proto_is_dgram (proto);
1354 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1356 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1357 is_nonblocking, session_index);
1359 VDBG (0, "created session %u", session->session_index);
1361 return vcl_session_handle (session);
1365 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1366 vcl_session_handle_t sh, u8 do_disconnect)
1370 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1372 if (s->flags & VCL_SESSION_F_IS_VEP)
1374 u32 next_sh = s->vep.next_sh;
1375 while (next_sh != ~0)
1377 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1378 if (PREDICT_FALSE (rv < 0))
1379 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1380 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1381 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1382 next_sh = s->vep.next_sh;
1387 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1389 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1391 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1392 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1393 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1398 VDBG (1, "session %u [0x%llx] disconnect skipped",
1399 s->session_index, s->vpp_handle);
1403 if (s->session_state == VCL_STATE_LISTEN)
1405 rv = vppcom_session_unbind (sh);
1406 if (PREDICT_FALSE (rv < 0))
1407 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1408 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1409 vppcom_retval_str (rv));
1412 else if (vcl_session_is_ready (s)
1413 || (vcl_session_is_connectable_listener (wrk, s)))
1415 rv = vppcom_session_disconnect (sh);
1416 if (PREDICT_FALSE (rv < 0))
1417 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1418 " rv %d (%s)", s->session_index, s->vpp_handle,
1419 rv, vppcom_retval_str (rv));
1421 else if (s->session_state == VCL_STATE_DISCONNECT)
1423 vcl_send_session_reset_reply (wrk, s, 0);
1425 else if (s->session_state == VCL_STATE_DETACHED)
1427 /* Should not happen. VPP cleaned up before app confirmed close */
1428 VDBG (0, "vpp freed session %d before close", s->session_index);
1432 s->session_state = VCL_STATE_CLOSED;
1434 /* Session is removed only after vpp confirms the disconnect */
1438 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1440 vcl_session_free (wrk, s);
1441 vcl_evt (VCL_EVT_CLOSE, s, rv);
1447 vppcom_session_close (uint32_t session_handle)
1449 vcl_worker_t *wrk = vcl_worker_get_current ();
1450 vcl_session_t *session;
1452 session = vcl_session_get_w_handle (wrk, session_handle);
1454 return VPPCOM_EBADFD;
1455 return vcl_session_cleanup (wrk, session, session_handle,
1456 1 /* do_disconnect */ );
1460 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1462 vcl_worker_t *wrk = vcl_worker_get_current ();
1463 vcl_session_t *session = 0;
1466 return VPPCOM_EINVAL;
1468 session = vcl_session_get_w_handle (wrk, session_handle);
1470 return VPPCOM_EBADFD;
1472 if (session->flags & VCL_SESSION_F_IS_VEP)
1474 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1475 session->session_index);
1476 return VPPCOM_EBADFD;
1479 session->transport.is_ip4 = ep->is_ip4;
1481 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1482 sizeof (ip4_address_t));
1484 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1485 sizeof (ip6_address_t));
1486 session->transport.lcl_port = ep->port;
1488 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1489 "proto %s", session->session_index, session_handle,
1490 session->transport.is_ip4 ? "IPv4" : "IPv6",
1491 format_ip46_address, &session->transport.lcl_ip,
1492 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1493 clib_net_to_host_u16 (session->transport.lcl_port),
1494 vppcom_proto_str (session->session_type));
1495 vcl_evt (VCL_EVT_BIND, session);
1497 if (session->session_type == VPPCOM_PROTO_UDP)
1498 vppcom_session_listen (session_handle, 10);
1504 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1506 vcl_worker_t *wrk = vcl_worker_get_current ();
1507 vcl_session_t *listen_session = 0;
1508 u64 listen_vpp_handle;
1511 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1512 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1513 return VPPCOM_EBADFD;
1515 if (q_len == 0 || q_len == ~0)
1516 q_len = vcm->cfg.listen_queue_size;
1518 listen_vpp_handle = listen_session->vpp_handle;
1519 if (listen_session->session_state == VCL_STATE_LISTEN)
1521 VDBG (0, "session %u [0x%llx]: already in listen state!",
1522 listen_sh, listen_vpp_handle);
1526 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1529 * Send listen request to vpp and wait for reply
1531 vcl_send_session_listen (wrk, listen_session);
1532 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1534 vcm->cfg.session_timeout);
1536 if (PREDICT_FALSE (rv))
1538 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1539 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1540 listen_sh, listen_session->vpp_handle, rv,
1541 vppcom_retval_str (rv));
1549 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1551 if (ls->flags & VCL_SESSION_F_IS_VEP)
1553 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1555 return VPPCOM_EBADFD;
1558 if ((ls->session_state != VCL_STATE_LISTEN)
1559 && (!vcl_session_is_connectable_listener (wrk, ls)))
1561 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1562 " (%s)", ls->vpp_handle, ls->session_state,
1563 vppcom_session_state_str (ls->session_state));
1564 return VPPCOM_EBADFD;
1570 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1572 if (!strcmp (proto_str, "TCP"))
1573 *proto = VPPCOM_PROTO_TCP;
1574 else if (!strcmp (proto_str, "tcp"))
1575 *proto = VPPCOM_PROTO_TCP;
1576 else if (!strcmp (proto_str, "UDP"))
1577 *proto = VPPCOM_PROTO_UDP;
1578 else if (!strcmp (proto_str, "udp"))
1579 *proto = VPPCOM_PROTO_UDP;
1580 else if (!strcmp (proto_str, "TLS"))
1581 *proto = VPPCOM_PROTO_TLS;
1582 else if (!strcmp (proto_str, "tls"))
1583 *proto = VPPCOM_PROTO_TLS;
1584 else if (!strcmp (proto_str, "QUIC"))
1585 *proto = VPPCOM_PROTO_QUIC;
1586 else if (!strcmp (proto_str, "quic"))
1587 *proto = VPPCOM_PROTO_QUIC;
1588 else if (!strcmp (proto_str, "DTLS"))
1589 *proto = VPPCOM_PROTO_DTLS;
1590 else if (!strcmp (proto_str, "dtls"))
1591 *proto = VPPCOM_PROTO_DTLS;
1598 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1601 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1602 vcl_worker_t *wrk = vcl_worker_get_current ();
1603 session_accepted_msg_t accepted_msg;
1604 vcl_session_t *listen_session = 0;
1605 vcl_session_t *client_session = 0;
1606 vcl_session_msg_t *evt;
1612 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1613 if (!listen_session)
1614 return VPPCOM_EBADFD;
1616 listen_session_index = listen_session->session_index;
1617 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1620 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1622 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1623 accept_flags = evt->flags;
1624 accepted_msg = evt->accepted_msg;
1628 is_nonblocking = vcl_session_has_attr (listen_session,
1629 VCL_SESS_ATTR_NONBLOCK);
1632 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1633 return VPPCOM_EAGAIN;
1635 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1636 vcl_worker_flush_mq_events (wrk);
1642 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1643 listen_session_index);
1644 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1645 return VPPCOM_ECONNABORTED;
1647 listen_session = vcl_session_get (wrk, listen_session_index);
1648 client_session = vcl_session_get (wrk, client_session_index);
1650 if (flags & O_NONBLOCK)
1651 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1653 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1654 " flags %d, is_nonblocking %u", listen_session->session_index,
1655 listen_session->vpp_handle, client_session_index,
1656 client_session->vpp_handle, flags,
1657 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1661 ep->is_ip4 = client_session->transport.is_ip4;
1662 ep->port = client_session->transport.rmt_port;
1663 if (client_session->transport.is_ip4)
1664 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1665 sizeof (ip4_address_t));
1667 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1668 sizeof (ip6_address_t));
1671 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1672 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1673 client_session_index, client_session->vpp_handle,
1674 format_ip46_address, &client_session->transport.rmt_ip,
1675 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1676 clib_net_to_host_u16 (client_session->transport.rmt_port),
1677 format_ip46_address, &client_session->transport.lcl_ip,
1678 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1679 clib_net_to_host_u16 (client_session->transport.lcl_port));
1680 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1681 client_session_index);
1684 * Session might have been closed already
1688 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1689 client_session->session_state = VCL_STATE_VPP_CLOSING;
1690 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1691 client_session->session_state = VCL_STATE_DISCONNECT;
1693 return vcl_session_handle (client_session);
1697 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1699 vcl_worker_t *wrk = vcl_worker_get_current ();
1700 vcl_session_t *session = 0;
1704 session = vcl_session_get_w_handle (wrk, session_handle);
1706 return VPPCOM_EBADFD;
1707 session_index = session->session_index;
1709 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1711 VDBG (0, "ERROR: cannot connect epoll session %u!",
1712 session->session_index);
1713 return VPPCOM_EBADFD;
1716 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1718 VDBG (0, "session handle %u [0x%llx]: session already "
1719 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1720 session_handle, session->vpp_handle,
1721 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1722 &session->transport.rmt_ip, session->transport.is_ip4 ?
1723 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1724 clib_net_to_host_u16 (session->transport.rmt_port),
1725 vppcom_proto_str (session->session_type), session->session_state,
1726 vppcom_session_state_str (session->session_state));
1730 /* Attempt to connect a connectionless listener */
1731 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1733 if (session->session_type != VPPCOM_PROTO_UDP)
1734 return VPPCOM_EINVAL;
1735 vcl_send_session_unlisten (wrk, session);
1736 session->session_state = VCL_STATE_CLOSED;
1739 session->transport.is_ip4 = server_ep->is_ip4;
1740 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1741 session->transport.rmt_port = server_ep->port;
1742 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1743 session->flags |= VCL_SESSION_F_CONNECTED;
1745 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1746 "port %d proto %s", session_handle,
1747 vppcom_session_state_str (session->session_state),
1748 session->transport.is_ip4 ? "IPv4" : "IPv6",
1749 format_ip46_address,
1750 &session->transport.rmt_ip, session->transport.is_ip4 ?
1751 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1752 clib_net_to_host_u16 (session->transport.rmt_port),
1753 vppcom_proto_str (session->session_type));
1755 vcl_send_session_connect (wrk, session);
1757 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1759 /* State set to STATE_UPDATED to ensure the session is not assumed
1760 * to be ready and to also allow the app to close it prior to vpp's
1761 * connected reply. */
1762 session->session_state = VCL_STATE_UPDATED;
1763 return VPPCOM_EINPROGRESS;
1767 * Wait for reply from vpp if blocking
1769 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1770 vcm->cfg.session_timeout);
1772 session = vcl_session_get (wrk, session_index);
1773 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1774 session->vpp_handle, rv ? "failed" : "succeeded");
1780 vppcom_session_stream_connect (uint32_t session_handle,
1781 uint32_t parent_session_handle)
1783 vcl_worker_t *wrk = vcl_worker_get_current ();
1784 vcl_session_t *session, *parent_session;
1785 u32 session_index, parent_session_index;
1788 session = vcl_session_get_w_handle (wrk, session_handle);
1790 return VPPCOM_EBADFD;
1791 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1792 if (!parent_session)
1793 return VPPCOM_EBADFD;
1795 session_index = session->session_index;
1796 parent_session_index = parent_session->session_index;
1797 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1799 VDBG (0, "ERROR: cannot connect epoll session %u!",
1800 session->session_index);
1801 return VPPCOM_EBADFD;
1804 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1806 VDBG (0, "session handle %u [0x%llx]: session already "
1807 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1808 session_handle, session->vpp_handle,
1809 parent_session_handle, parent_session->vpp_handle,
1810 vppcom_proto_str (session->session_type), session->session_state,
1811 vppcom_session_state_str (session->session_state));
1815 /* Connect to quic session specifics */
1816 session->transport.is_ip4 = parent_session->transport.is_ip4;
1817 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1818 session->transport.rmt_port = 0;
1819 session->parent_handle = parent_session->vpp_handle;
1821 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1822 session_handle, parent_session_handle, parent_session->vpp_handle);
1825 * Send connect request and wait for reply from vpp
1827 vcl_send_session_connect (wrk, session);
1828 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1829 vcm->cfg.session_timeout);
1831 session->listener_index = parent_session_index;
1832 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1834 parent_session->n_accepted_sessions++;
1836 session = vcl_session_get (wrk, session_index);
1837 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1838 session->vpp_handle, rv ? "failed" : "succeeded");
1844 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1847 vcl_worker_t *wrk = vcl_worker_get_current ();
1848 int rv, n_read = 0, is_nonblocking;
1849 vcl_session_t *s = 0;
1850 svm_fifo_t *rx_fifo;
1855 if (PREDICT_FALSE (!buf))
1856 return VPPCOM_EINVAL;
1858 s = vcl_session_get_w_handle (wrk, session_handle);
1859 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1860 return VPPCOM_EBADFD;
1862 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1864 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1865 s->session_index, s->vpp_handle, s->session_state,
1866 vppcom_session_state_str (s->session_state));
1867 return vcl_session_closed_error (s);
1870 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1871 is_ct = vcl_session_is_ct (s);
1872 mq = wrk->app_event_queue;
1873 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1874 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1876 if (svm_fifo_is_empty_cons (rx_fifo))
1880 if (vcl_session_is_closing (s))
1881 return vcl_session_closing_error (s);
1883 svm_fifo_unset_event (s->rx_fifo);
1884 svm_fifo_unset_event (rx_fifo);
1885 return VPPCOM_EWOULDBLOCK;
1887 while (svm_fifo_is_empty_cons (rx_fifo))
1889 if (vcl_session_is_closing (s))
1890 return vcl_session_closing_error (s);
1893 svm_fifo_unset_event (s->rx_fifo);
1894 svm_fifo_unset_event (rx_fifo);
1896 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1897 vcl_worker_flush_mq_events (wrk);
1904 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1906 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1911 if (svm_fifo_is_empty_cons (rx_fifo))
1914 svm_fifo_unset_event (s->rx_fifo);
1915 svm_fifo_unset_event (rx_fifo);
1916 if (!svm_fifo_is_empty_cons (rx_fifo)
1917 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1919 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1920 e->event_type = SESSION_IO_EVT_RX;
1921 e->session_index = s->session_index;
1924 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1926 /* More data enqueued while reading. Try to drain it
1927 * or fill the buffer. Avoid doing that for dgrams */
1933 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1935 svm_fifo_clear_deq_ntf (rx_fifo);
1936 app_send_io_evt_to_vpp (s->vpp_evt_q,
1937 s->rx_fifo->shr->master_session_index,
1938 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1941 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1942 s->vpp_handle, n_read, rx_fifo);
1948 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1950 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1954 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1956 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1960 vppcom_session_read_segments (uint32_t session_handle,
1961 vppcom_data_segment_t * ds, uint32_t n_segments,
1964 vcl_worker_t *wrk = vcl_worker_get_current ();
1965 int n_read = 0, is_nonblocking;
1966 vcl_session_t *s = 0;
1967 svm_fifo_t *rx_fifo;
1971 s = vcl_session_get_w_handle (wrk, session_handle);
1972 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1973 return VPPCOM_EBADFD;
1975 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1976 return vcl_session_closed_error (s);
1978 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1979 is_ct = vcl_session_is_ct (s);
1980 mq = wrk->app_event_queue;
1981 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1982 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1984 if (svm_fifo_is_empty_cons (rx_fifo))
1989 svm_fifo_unset_event (s->rx_fifo);
1990 svm_fifo_unset_event (rx_fifo);
1991 return VPPCOM_EWOULDBLOCK;
1993 while (svm_fifo_is_empty_cons (rx_fifo))
1995 if (vcl_session_is_closing (s))
1996 return vcl_session_closing_error (s);
1999 svm_fifo_unset_event (s->rx_fifo);
2000 svm_fifo_unset_event (rx_fifo);
2002 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2003 vcl_worker_flush_mq_events (wrk);
2007 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2008 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
2010 return VPPCOM_EAGAIN;
2012 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2015 svm_fifo_unset_event (s->rx_fifo);
2016 svm_fifo_unset_event (rx_fifo);
2017 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2018 && svm_fifo_set_event (rx_fifo)
2019 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2022 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2023 e->event_type = SESSION_IO_EVT_RX;
2024 e->session_index = s->session_index;
2028 s->rx_bytes_pending += n_read;
2033 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2035 vcl_worker_t *wrk = vcl_worker_get_current ();
2039 s = vcl_session_get_w_handle (wrk, session_handle);
2040 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2043 is_ct = vcl_session_is_ct (s);
2044 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2046 ASSERT (s->rx_bytes_pending < n_bytes);
2047 s->rx_bytes_pending -= n_bytes;
2051 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2053 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2055 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2061 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2062 size_t n, u8 is_flush, u8 is_dgram)
2064 int n_write, is_nonblocking;
2065 session_evt_type_t et;
2066 svm_fifo_t *tx_fifo;
2070 if (PREDICT_FALSE (!buf || n == 0))
2071 return VPPCOM_EINVAL;
2073 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2075 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2076 " session!", s->session_index, s->vpp_handle);
2077 return VPPCOM_EBADFD;
2080 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2082 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2083 s->session_index, s->vpp_handle, s->session_state,
2084 vppcom_session_state_str (s->session_state));
2085 return vcl_session_closed_error (s);;
2088 is_ct = vcl_session_is_ct (s);
2089 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2090 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2092 mq = wrk->app_event_queue;
2093 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2097 return VPPCOM_EWOULDBLOCK;
2099 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2101 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2102 if (vcl_session_is_closing (s))
2103 return vcl_session_closing_error (s);
2105 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2106 vcl_worker_flush_mq_events (wrk);
2110 et = SESSION_IO_EVT_TX;
2111 if (is_flush && !is_ct)
2112 et = SESSION_IO_EVT_TX_FLUSH;
2115 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2116 s->vpp_evt_q, buf, n, et,
2117 0 /* do_evt */ , SVM_Q_WAIT);
2119 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2120 0 /* do_evt */ , SVM_Q_WAIT);
2122 if (svm_fifo_set_event (s->tx_fifo))
2123 app_send_io_evt_to_vpp (
2124 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2126 /* The underlying fifo segment can run out of memory */
2127 if (PREDICT_FALSE (n_write < 0))
2128 return VPPCOM_EAGAIN;
2130 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2131 s->vpp_handle, n_write);
2137 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2139 vcl_worker_t *wrk = vcl_worker_get_current ();
2142 s = vcl_session_get_w_handle (wrk, session_handle);
2143 if (PREDICT_FALSE (!s))
2144 return VPPCOM_EBADFD;
2146 return vppcom_session_write_inline (wrk, s, buf, n,
2147 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2151 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2153 vcl_worker_t *wrk = vcl_worker_get_current ();
2156 s = vcl_session_get_w_handle (wrk, session_handle);
2157 if (PREDICT_FALSE (!s))
2158 return VPPCOM_EBADFD;
2160 return vppcom_session_write_inline (wrk, s, buf, n,
2161 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2164 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2165 if (PREDICT_FALSE (!_s->rx_fifo)) \
2167 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2169 if (!vcl_session_is_ct (_s)) \
2171 svm_fifo_unset_event (_s->rx_fifo); \
2172 if (svm_fifo_is_empty (_s->rx_fifo)) \
2175 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2177 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2178 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2184 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2185 unsigned long n_bits, unsigned long *read_map,
2186 unsigned long *write_map,
2187 unsigned long *except_map, u32 * bits_set)
2189 session_disconnected_msg_t *disconnected_msg;
2190 session_connected_msg_t *connected_msg;
2194 switch (e->event_type)
2196 case SESSION_IO_EVT_RX:
2197 sid = e->session_index;
2198 s = vcl_session_get (wrk, sid);
2199 if (!s || !vcl_session_is_open (s))
2201 vcl_fifo_rx_evt_valid_or_break (s);
2202 if (sid < n_bits && read_map)
2204 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2208 case SESSION_IO_EVT_TX:
2209 sid = e->session_index;
2210 s = vcl_session_get (wrk, sid);
2211 if (!s || !vcl_session_is_open (s))
2213 if (sid < n_bits && write_map)
2215 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2219 case SESSION_CTRL_EVT_ACCEPTED:
2221 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2223 s = vcl_session_get (wrk, e->session_index);
2226 sid = s->session_index;
2227 if (sid < n_bits && read_map)
2229 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2233 case SESSION_CTRL_EVT_CONNECTED:
2236 connected_msg = (session_connected_msg_t *) e->data;
2237 sid = vcl_session_connected_handler (wrk, connected_msg);
2240 sid = e->session_index;
2241 if (sid == VCL_INVALID_SESSION_INDEX)
2243 if (sid < n_bits && write_map)
2245 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2249 case SESSION_CTRL_EVT_DISCONNECTED:
2250 disconnected_msg = (session_disconnected_msg_t *) e->data;
2251 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2254 sid = s->session_index;
2255 if (sid < n_bits && except_map)
2257 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2261 case SESSION_CTRL_EVT_RESET:
2262 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2263 if (sid < n_bits && except_map)
2265 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2269 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2270 vcl_session_unlisten_reply_handler (wrk, e->data);
2272 case SESSION_CTRL_EVT_MIGRATED:
2273 vcl_session_migrated_handler (wrk, e->data);
2275 case SESSION_CTRL_EVT_CLEANUP:
2276 vcl_session_cleanup_handler (wrk, e->data);
2278 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2279 vcl_session_worker_update_reply_handler (wrk, e->data);
2281 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2282 vcl_session_req_worker_update_handler (wrk, e->data);
2284 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2285 vcl_session_app_add_segment_handler (wrk, e->data);
2287 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2288 vcl_session_app_del_segment_handler (wrk, e->data);
2290 case SESSION_CTRL_EVT_APP_WRK_RPC:
2291 vcl_worker_rpc_handler (wrk, e->data);
2294 clib_warning ("unhandled: %u", e->event_type);
2300 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2301 unsigned long n_bits, unsigned long *read_map,
2302 unsigned long *write_map, unsigned long *except_map,
2303 double time_to_wait, u32 * bits_set)
2305 svm_msg_q_msg_t *msg;
2309 if (svm_msg_q_is_empty (mq))
2316 else if (time_to_wait < 0)
2317 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2320 if (svm_msg_q_timedwait (mq, time_to_wait))
2324 vcl_mq_dequeue_batch (wrk, mq, ~0);
2326 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2328 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2329 e = svm_msg_q_msg_data (mq, msg);
2330 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2331 except_map, bits_set);
2332 svm_msg_q_free_msg (mq, msg);
2334 vec_reset_length (wrk->mq_msg_vector);
2335 vcl_handle_pending_wrk_updates (wrk);
2340 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2341 vcl_si_set * read_map, vcl_si_set * write_map,
2342 vcl_si_set * except_map, double time_to_wait,
2345 double wait = 0, start = 0;
2349 wait = time_to_wait;
2350 start = clib_time_now (&wrk->clib_time);
2355 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2356 write_map, except_map, wait, bits_set);
2362 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2370 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2371 vcl_si_set * read_map, vcl_si_set * write_map,
2372 vcl_si_set * except_map, double time_to_wait,
2375 vcl_mq_evt_conn_t *mqc;
2376 int __clib_unused n_read;
2380 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2381 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2382 vec_len (wrk->mq_events), time_to_wait);
2383 for (i = 0; i < n_mq_evts; i++)
2385 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2386 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2387 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2388 except_map, 0, bits_set);
2391 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2395 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2396 vcl_si_set * except_map, double time_to_wait)
2398 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2399 vcl_worker_t *wrk = vcl_worker_get_current ();
2400 vcl_session_t *s = 0;
2403 if (n_bits && read_map)
2405 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2406 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2407 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2408 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2410 if (n_bits && write_map)
2412 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2413 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2414 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2415 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2417 if (n_bits && except_map)
2419 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2420 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2421 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2422 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2431 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2433 if (!(s = vcl_session_get (wrk, sid)))
2435 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2440 if (vcl_session_write_ready (s))
2442 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2447 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2448 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2456 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2458 if (!(s = vcl_session_get (wrk, sid)))
2460 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2465 if (vcl_session_read_ready (s))
2467 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2474 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2476 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2477 read_map, write_map, except_map, &bits_set);
2479 vec_reset_length (wrk->unhandled_evts_vector);
2481 if (vcm->cfg.use_mq_eventfd)
2482 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2483 time_to_wait, &bits_set);
2485 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2486 time_to_wait, &bits_set);
2492 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2494 vppcom_epoll_t *vep;
2495 u32 sh = vep_handle;
2498 if (VPPCOM_DEBUG <= 2)
2501 s = vcl_session_get_w_handle (wrk, vep_handle);
2502 if (PREDICT_FALSE (!s))
2504 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2507 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2509 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2513 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2516 " is_vep_session = %u\n"
2517 " next_sh = 0x%x (%u)\n"
2518 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2519 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2521 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2523 s = vcl_session_get_w_handle (wrk, sh);
2524 if (PREDICT_FALSE (!s))
2526 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2529 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2531 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2533 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2535 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2539 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2540 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2541 sh, s->vep.vep_sh, vep_handle);
2542 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2544 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2546 " next_sh = 0x%x (%u)\n"
2547 " prev_sh = 0x%x (%u)\n"
2548 " vep_sh = 0x%x (%u)\n"
2549 " ev.events = 0x%x\n"
2550 " ev.data.u64 = 0x%llx\n"
2553 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2554 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2555 vep->ev.data.u64, vep->et_mask);
2560 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2564 vppcom_epoll_create (void)
2566 vcl_worker_t *wrk = vcl_worker_get_current ();
2567 vcl_session_t *vep_session;
2569 vep_session = vcl_session_alloc (wrk);
2571 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2572 vep_session->vep.vep_sh = ~0;
2573 vep_session->vep.next_sh = ~0;
2574 vep_session->vep.prev_sh = ~0;
2575 vep_session->vpp_handle = ~0;
2577 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2578 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2580 return vcl_session_handle (vep_session);
2584 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2585 struct epoll_event *event)
2587 vcl_worker_t *wrk = vcl_worker_get_current ();
2588 vcl_session_t *vep_session;
2593 if (vep_handle == session_handle)
2595 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2596 return VPPCOM_EINVAL;
2599 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2600 if (PREDICT_FALSE (!vep_session))
2602 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2603 return VPPCOM_EBADFD;
2605 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2607 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2608 return VPPCOM_EINVAL;
2611 ASSERT (vep_session->vep.vep_sh == ~0);
2612 ASSERT (vep_session->vep.prev_sh == ~0);
2614 s = vcl_session_get_w_handle (wrk, session_handle);
2615 if (PREDICT_FALSE (!s))
2617 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2618 return VPPCOM_EBADFD;
2620 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2622 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2623 return VPPCOM_EINVAL;
2629 if (PREDICT_FALSE (!event))
2631 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2632 return VPPCOM_EINVAL;
2634 if (vep_session->vep.next_sh != ~0)
2636 vcl_session_t *next_session;
2637 next_session = vcl_session_get_w_handle (wrk,
2638 vep_session->vep.next_sh);
2639 if (PREDICT_FALSE (!next_session))
2641 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2642 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2643 return VPPCOM_EBADFD;
2645 ASSERT (next_session->vep.prev_sh == vep_handle);
2646 next_session->vep.prev_sh = session_handle;
2648 s->vep.next_sh = vep_session->vep.next_sh;
2649 s->vep.prev_sh = vep_handle;
2650 s->vep.vep_sh = vep_handle;
2651 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2653 s->flags &= ~VCL_SESSION_F_IS_VEP;
2654 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2655 vep_session->vep.next_sh = session_handle;
2657 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2658 if (txf && (event->events & EPOLLOUT))
2659 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2661 /* Generate EPOLLOUT if tx fifo not full */
2662 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2664 session_event_t e = { 0 };
2665 e.event_type = SESSION_IO_EVT_TX;
2666 e.session_index = s->session_index;
2667 vec_add1 (wrk->unhandled_evts_vector, e);
2669 /* Generate EPOLLIN if rx fifo has data */
2670 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2672 session_event_t e = { 0 };
2673 e.event_type = SESSION_IO_EVT_RX;
2674 e.session_index = s->session_index;
2675 vec_add1 (wrk->unhandled_evts_vector, e);
2677 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2678 vep_handle, session_handle, event->events, event->data.u64);
2679 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2683 if (PREDICT_FALSE (!event))
2685 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2689 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2691 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2695 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2697 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2698 session_handle, s->vep.vep_sh, vep_handle);
2703 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2704 if ((event->events & EPOLLOUT) &&
2705 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2707 session_event_t e = { 0 };
2708 e.event_type = SESSION_IO_EVT_TX;
2709 e.session_index = s->session_index;
2710 vec_add1 (wrk->unhandled_evts_vector, e);
2712 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2714 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2717 if (event->events & EPOLLOUT)
2718 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2720 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2722 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2723 vep_handle, session_handle, event->events, event->data.u64);
2727 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2729 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2733 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2735 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2736 session_handle, s->vep.vep_sh, vep_handle);
2741 if (s->vep.prev_sh == vep_handle)
2742 vep_session->vep.next_sh = s->vep.next_sh;
2745 vcl_session_t *prev_session;
2746 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2747 if (PREDICT_FALSE (!prev_session))
2749 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2750 s->vep.prev_sh, session_handle);
2751 return VPPCOM_EBADFD;
2753 ASSERT (prev_session->vep.next_sh == session_handle);
2754 prev_session->vep.next_sh = s->vep.next_sh;
2756 if (s->vep.next_sh != ~0)
2758 vcl_session_t *next_session;
2759 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2760 if (PREDICT_FALSE (!next_session))
2762 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2763 s->vep.next_sh, session_handle);
2764 return VPPCOM_EBADFD;
2766 ASSERT (next_session->vep.prev_sh == session_handle);
2767 next_session->vep.prev_sh = s->vep.prev_sh;
2770 memset (&s->vep, 0, sizeof (s->vep));
2771 s->vep.next_sh = ~0;
2772 s->vep.prev_sh = ~0;
2774 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2776 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2778 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2780 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2782 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2786 VDBG (0, "Invalid operation (%d)!", op);
2790 vep_verify_epoll_chain (wrk, vep_handle);
2797 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2798 struct epoll_event *events, u32 * num_ev)
2800 session_disconnected_msg_t *disconnected_msg;
2801 session_connected_msg_t *connected_msg;
2802 u32 sid = ~0, session_events;
2803 u64 session_evt_data = ~0;
2807 switch (e->event_type)
2809 case SESSION_IO_EVT_RX:
2810 sid = e->session_index;
2811 s = vcl_session_get (wrk, sid);
2812 if (vcl_session_is_closed (s))
2814 vcl_fifo_rx_evt_valid_or_break (s);
2815 session_events = s->vep.ev.events;
2816 if (!(EPOLLIN & s->vep.ev.events)
2817 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2820 events[*num_ev].events |= EPOLLIN;
2821 session_evt_data = s->vep.ev.data.u64;
2822 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2824 case SESSION_IO_EVT_TX:
2825 sid = e->session_index;
2826 s = vcl_session_get (wrk, sid);
2827 if (vcl_session_is_closed (s))
2829 session_events = s->vep.ev.events;
2830 if (!(EPOLLOUT & session_events))
2833 events[*num_ev].events |= EPOLLOUT;
2834 session_evt_data = s->vep.ev.data.u64;
2835 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2836 s->ct_tx_fifo : s->tx_fifo);
2838 case SESSION_CTRL_EVT_ACCEPTED:
2840 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2842 s = vcl_session_get (wrk, e->session_index);
2845 session_events = s->vep.ev.events;
2846 sid = s->session_index;
2847 if (!(EPOLLIN & session_events))
2850 events[*num_ev].events |= EPOLLIN;
2851 session_evt_data = s->vep.ev.data.u64;
2853 case SESSION_CTRL_EVT_CONNECTED:
2856 connected_msg = (session_connected_msg_t *) e->data;
2857 sid = vcl_session_connected_handler (wrk, connected_msg);
2860 sid = e->session_index;
2861 s = vcl_session_get (wrk, sid);
2862 if (vcl_session_is_closed (s))
2864 session_events = s->vep.ev.events;
2865 /* Generate EPOLLOUT because there's no connected event */
2866 if (!(EPOLLOUT & session_events))
2869 events[*num_ev].events |= EPOLLOUT;
2870 session_evt_data = s->vep.ev.data.u64;
2871 if (s->session_state == VCL_STATE_DETACHED)
2872 events[*num_ev].events |= EPOLLHUP;
2874 case SESSION_CTRL_EVT_DISCONNECTED:
2875 disconnected_msg = (session_disconnected_msg_t *) e->data;
2876 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2877 if (vcl_session_is_closed (s))
2879 sid = s->session_index;
2880 session_events = s->vep.ev.events;
2882 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2883 session_evt_data = s->vep.ev.data.u64;
2885 case SESSION_CTRL_EVT_RESET:
2886 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2887 s = vcl_session_get (wrk, sid);
2888 if (vcl_session_is_closed (s))
2890 session_events = s->vep.ev.events;
2892 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2893 session_evt_data = s->vep.ev.data.u64;
2895 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2896 vcl_session_unlisten_reply_handler (wrk, e->data);
2898 case SESSION_CTRL_EVT_MIGRATED:
2899 vcl_session_migrated_handler (wrk, e->data);
2901 case SESSION_CTRL_EVT_CLEANUP:
2902 vcl_session_cleanup_handler (wrk, e->data);
2904 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2905 vcl_session_req_worker_update_handler (wrk, e->data);
2907 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2908 vcl_session_worker_update_reply_handler (wrk, e->data);
2910 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2911 vcl_session_app_add_segment_handler (wrk, e->data);
2913 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2914 vcl_session_app_del_segment_handler (wrk, e->data);
2916 case SESSION_CTRL_EVT_APP_WRK_RPC:
2917 vcl_worker_rpc_handler (wrk, e->data);
2920 VDBG (0, "unhandled: %u", e->event_type);
2926 events[*num_ev].data.u64 = session_evt_data;
2927 if (EPOLLONESHOT & session_events)
2929 s = vcl_session_get (wrk, sid);
2930 s->vep.ev.events = 0;
2937 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2938 struct epoll_event *events, u32 maxevents,
2939 double wait_for_time, u32 * num_ev)
2941 svm_msg_q_msg_t *msg;
2945 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2946 goto handle_dequeued;
2948 if (svm_msg_q_is_empty (mq))
2952 else if (wait_for_time < 0)
2953 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2956 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2960 ASSERT (maxevents > *num_ev);
2961 vcl_mq_dequeue_batch (wrk, mq, ~0);
2964 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2966 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2967 e = svm_msg_q_msg_data (mq, msg);
2968 if (*num_ev < maxevents)
2969 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2971 vcl_handle_mq_event (wrk, e);
2972 svm_msg_q_free_msg (mq, msg);
2974 vec_reset_length (wrk->mq_msg_vector);
2975 vcl_handle_pending_wrk_updates (wrk);
2980 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2981 int maxevents, u32 n_evts, double wait_for_time)
2983 double wait = 0, start = 0, now;
2987 wait = wait_for_time;
2988 start = clib_time_now (&wrk->clib_time);
2993 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3000 now = clib_time_now (&wrk->clib_time);
3001 wait -= (now - start) * 1e3;
3010 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3011 int maxevents, u32 n_evts, double wait_for_time)
3013 double wait = 0, start = 0, now;
3014 int __clib_unused n_read;
3015 vcl_mq_evt_conn_t *mqc;
3019 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3022 wait = wait_for_time;
3023 start = clib_time_now (&wrk->clib_time);
3028 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3029 vec_len (wrk->mq_events), wait);
3032 VDBG (0, "epoll_wait error %u", errno);
3036 for (i = 0; i < n_mq_evts; i++)
3038 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3039 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3040 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3049 now = clib_time_now (&wrk->clib_time);
3050 wait -= (now - start) * 1e3;
3059 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3060 int maxevents, double wait_for_time)
3062 vcl_worker_t *wrk = vcl_worker_get_current ();
3063 vcl_session_t *vep_session;
3067 if (PREDICT_FALSE (maxevents <= 0))
3069 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3070 return VPPCOM_EINVAL;
3073 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3075 return VPPCOM_EBADFD;
3077 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3079 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3080 return VPPCOM_EINVAL;
3083 memset (events, 0, sizeof (*events) * maxevents);
3085 if (vec_len (wrk->unhandled_evts_vector))
3087 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3089 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3091 if (n_evts == maxevents)
3093 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3097 vec_reset_length (wrk->unhandled_evts_vector);
3099 /* Request to only drain unhandled */
3100 if ((int) wait_for_time == -2)
3103 if (vcm->cfg.use_mq_eventfd)
3104 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3107 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3112 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3113 void *buffer, uint32_t * buflen)
3115 vcl_worker_t *wrk = vcl_worker_get_current ();
3116 u32 *flags = buffer, tmp_flags = 0;
3117 vppcom_endpt_t *ep = buffer;
3118 transport_endpt_attr_t tea;
3119 vcl_session_t *session;
3122 session = vcl_session_get_w_handle (wrk, session_handle);
3124 return VPPCOM_EBADFD;
3128 case VPPCOM_ATTR_GET_NREAD:
3129 rv = vcl_session_read_ready (session);
3130 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3134 case VPPCOM_ATTR_GET_NWRITE:
3135 rv = vcl_session_write_ready (session);
3136 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3140 case VPPCOM_ATTR_GET_FLAGS:
3141 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3145 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3147 *buflen = sizeof (*flags);
3148 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3149 "is_nonblocking = %u", session_handle, *flags,
3150 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3156 case VPPCOM_ATTR_SET_FLAGS:
3157 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3159 if (*flags & O_NONBLOCK)
3160 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3162 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3164 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3165 " is_nonblocking = %u", session_handle, *flags,
3166 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3172 case VPPCOM_ATTR_GET_PEER_ADDR:
3173 if (PREDICT_TRUE (buffer && buflen &&
3174 (*buflen >= sizeof (*ep)) && ep->ip))
3176 ep->is_ip4 = session->transport.is_ip4;
3177 ep->port = session->transport.rmt_port;
3178 if (session->transport.is_ip4)
3179 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3180 sizeof (ip4_address_t));
3182 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3183 sizeof (ip6_address_t));
3184 *buflen = sizeof (*ep);
3185 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3186 "addr = %U, port %u", session_handle, ep->is_ip4,
3187 format_ip46_address, &session->transport.rmt_ip,
3188 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3189 clib_net_to_host_u16 (ep->port));
3195 case VPPCOM_ATTR_GET_LCL_ADDR:
3196 if (PREDICT_TRUE (buffer && buflen &&
3197 (*buflen >= sizeof (*ep)) && ep->ip))
3199 ep->is_ip4 = session->transport.is_ip4;
3200 ep->port = session->transport.lcl_port;
3201 if (session->transport.is_ip4)
3202 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3203 sizeof (ip4_address_t));
3205 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3206 sizeof (ip6_address_t));
3207 *buflen = sizeof (*ep);
3208 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3209 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3210 &session->transport.lcl_ip,
3211 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3212 clib_net_to_host_u16 (ep->port));
3218 case VPPCOM_ATTR_SET_LCL_ADDR:
3219 if (PREDICT_TRUE (buffer && buflen &&
3220 (*buflen >= sizeof (*ep)) && ep->ip))
3222 session->transport.is_ip4 = ep->is_ip4;
3223 session->transport.lcl_port = ep->port;
3224 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3225 *buflen = sizeof (*ep);
3226 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3227 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3228 &session->transport.lcl_ip,
3229 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3230 clib_net_to_host_u16 (ep->port));
3236 case VPPCOM_ATTR_GET_LIBC_EPFD:
3237 rv = session->libc_epfd;
3238 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3241 case VPPCOM_ATTR_SET_LIBC_EPFD:
3242 if (PREDICT_TRUE (buffer && buflen &&
3243 (*buflen == sizeof (session->libc_epfd))))
3245 session->libc_epfd = *(int *) buffer;
3246 *buflen = sizeof (session->libc_epfd);
3248 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3249 session->libc_epfd, *buflen);
3255 case VPPCOM_ATTR_GET_PROTOCOL:
3256 if (buffer && buflen && (*buflen >= sizeof (int)))
3258 *(int *) buffer = session->session_type;
3259 *buflen = sizeof (int);
3261 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3262 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3268 case VPPCOM_ATTR_GET_LISTEN:
3269 if (buffer && buflen && (*buflen >= sizeof (int)))
3271 *(int *) buffer = vcl_session_has_attr (session,
3272 VCL_SESS_ATTR_LISTEN);
3273 *buflen = sizeof (int);
3275 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3282 case VPPCOM_ATTR_GET_ERROR:
3283 if (buffer && buflen && (*buflen >= sizeof (int)))
3285 *(int *) buffer = 0;
3286 *buflen = sizeof (int);
3288 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3289 *(int *) buffer, *buflen);
3295 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3296 if (buffer && buflen && (*buflen >= sizeof (u32)))
3300 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3302 svm_fifo_size (session->tx_fifo) :
3303 vcm->cfg.tx_fifo_size);
3304 *buflen = sizeof (u32);
3306 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3307 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3314 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3315 if (buffer && buflen && (*buflen == sizeof (u32)))
3318 session->sndbuf_size = *(u32 *) buffer;
3319 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3320 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3327 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3328 if (buffer && buflen && (*buflen >= sizeof (u32)))
3332 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3334 svm_fifo_size (session->rx_fifo) :
3335 vcm->cfg.rx_fifo_size);
3336 *buflen = sizeof (u32);
3338 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3339 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3345 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3346 if (buffer && buflen && (*buflen == sizeof (u32)))
3349 session->rcvbuf_size = *(u32 *) buffer;
3350 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3351 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3358 case VPPCOM_ATTR_GET_REUSEADDR:
3359 if (buffer && buflen && (*buflen >= sizeof (int)))
3362 *(int *) buffer = vcl_session_has_attr (session,
3363 VCL_SESS_ATTR_REUSEADDR);
3364 *buflen = sizeof (int);
3366 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3367 *(int *) buffer, *buflen);
3373 case VPPCOM_ATTR_SET_REUSEADDR:
3374 if (buffer && buflen && (*buflen == sizeof (int)) &&
3375 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3378 if (*(int *) buffer)
3379 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3381 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3383 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3384 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3391 case VPPCOM_ATTR_GET_REUSEPORT:
3392 if (buffer && buflen && (*buflen >= sizeof (int)))
3395 *(int *) buffer = vcl_session_has_attr (session,
3396 VCL_SESS_ATTR_REUSEPORT);
3397 *buflen = sizeof (int);
3399 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3400 *(int *) buffer, *buflen);
3406 case VPPCOM_ATTR_SET_REUSEPORT:
3407 if (buffer && buflen && (*buflen == sizeof (int)) &&
3408 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3411 if (*(int *) buffer)
3412 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3414 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3416 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3417 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3424 case VPPCOM_ATTR_GET_BROADCAST:
3425 if (buffer && buflen && (*buflen >= sizeof (int)))
3428 *(int *) buffer = vcl_session_has_attr (session,
3429 VCL_SESS_ATTR_BROADCAST);
3430 *buflen = sizeof (int);
3432 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3433 *(int *) buffer, *buflen);
3439 case VPPCOM_ATTR_SET_BROADCAST:
3440 if (buffer && buflen && (*buflen == sizeof (int)))
3443 if (*(int *) buffer)
3444 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3446 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3448 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3449 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3456 case VPPCOM_ATTR_GET_V6ONLY:
3457 if (buffer && buflen && (*buflen >= sizeof (int)))
3460 *(int *) buffer = vcl_session_has_attr (session,
3461 VCL_SESS_ATTR_V6ONLY);
3462 *buflen = sizeof (int);
3464 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3465 *(int *) buffer, *buflen);
3471 case VPPCOM_ATTR_SET_V6ONLY:
3472 if (buffer && buflen && (*buflen == sizeof (int)))
3475 if (*(int *) buffer)
3476 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3478 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3480 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3481 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3488 case VPPCOM_ATTR_GET_KEEPALIVE:
3489 if (buffer && buflen && (*buflen >= sizeof (int)))
3492 *(int *) buffer = vcl_session_has_attr (session,
3493 VCL_SESS_ATTR_KEEPALIVE);
3494 *buflen = sizeof (int);
3496 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3497 *(int *) buffer, *buflen);
3503 case VPPCOM_ATTR_SET_KEEPALIVE:
3504 if (buffer && buflen && (*buflen == sizeof (int)))
3507 if (*(int *) buffer)
3508 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3510 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3512 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3513 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3520 case VPPCOM_ATTR_GET_TCP_NODELAY:
3521 if (buffer && buflen && (*buflen >= sizeof (int)))
3524 *(int *) buffer = vcl_session_has_attr (session,
3525 VCL_SESS_ATTR_TCP_NODELAY);
3526 *buflen = sizeof (int);
3528 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3529 *(int *) buffer, *buflen);
3535 case VPPCOM_ATTR_SET_TCP_NODELAY:
3536 if (buffer && buflen && (*buflen == sizeof (int)))
3539 if (*(int *) buffer)
3540 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3542 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3544 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3545 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3552 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3553 if (buffer && buflen && (*buflen >= sizeof (int)))
3556 *(int *) buffer = vcl_session_has_attr (session,
3557 VCL_SESS_ATTR_TCP_KEEPIDLE);
3558 *buflen = sizeof (int);
3560 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3561 *(int *) buffer, *buflen);
3567 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3568 if (buffer && buflen && (*buflen == sizeof (int)))
3571 if (*(int *) buffer)
3572 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3574 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3576 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3577 vcl_session_has_attr (session,
3578 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3584 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3585 if (buffer && buflen && (*buflen >= sizeof (int)))
3588 *(int *) buffer = vcl_session_has_attr (session,
3589 VCL_SESS_ATTR_TCP_KEEPINTVL);
3590 *buflen = sizeof (int);
3592 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3593 *(int *) buffer, *buflen);
3599 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3600 if (buffer && buflen && (*buflen == sizeof (int)))
3603 if (*(int *) buffer)
3604 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3606 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3608 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3609 vcl_session_has_attr (session,
3610 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3616 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3617 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3623 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
3624 tea.mss = *(u32 *) buffer;
3625 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
3626 rv = VPPCOM_ENOPROTOOPT;
3630 *(u32 *) buffer = tea.mss;
3631 *buflen = sizeof (int);
3634 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
3638 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3639 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3645 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
3646 tea.mss = *(u32 *) buffer;
3647 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
3648 rv = VPPCOM_ENOPROTOOPT;
3650 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
3654 case VPPCOM_ATTR_SET_SHUT:
3655 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3656 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3657 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3658 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3661 case VPPCOM_ATTR_GET_SHUT:
3662 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3664 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3667 *(int *) buffer = SHUT_RD;
3668 else if (tmp_flags == 2)
3669 *(int *) buffer = SHUT_WR;
3670 else if (tmp_flags == 3)
3671 *(int *) buffer = SHUT_RDWR;
3672 *buflen = sizeof (int);
3675 case VPPCOM_ATTR_SET_CONNECTED:
3676 session->flags |= VCL_SESSION_F_CONNECTED;
3679 case VPPCOM_ATTR_SET_CKPAIR:
3680 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
3681 !vcl_session_has_crypto (session))
3686 session->ckpair_index = *(uint32_t *) buffer;
3689 case VPPCOM_ATTR_SET_VRF:
3690 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3695 session->vrf = *(u32 *) buffer;
3698 case VPPCOM_ATTR_GET_VRF:
3699 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3704 *(u32 *) buffer = session->vrf;
3705 *buflen = sizeof (u32);
3708 case VPPCOM_ATTR_GET_DOMAIN:
3709 if (!(buffer && buflen && (*buflen >= sizeof (int))))
3715 if (session->transport.is_ip4)
3716 *(int *) buffer = AF_INET;
3718 *(int *) buffer = AF_INET6;
3719 *buflen = sizeof (int);
3721 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
3734 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3735 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3737 vcl_worker_t *wrk = vcl_worker_get_current ();
3738 vcl_session_t *session;
3742 rv = vppcom_session_read (session_handle, buffer, buflen);
3743 else if (flags & MSG_PEEK)
3744 rv = vppcom_session_peek (session_handle, buffer, buflen);
3747 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3748 return VPPCOM_EAFNOSUPPORT;
3753 session = vcl_session_get_w_handle (wrk, session_handle);
3754 if (session->transport.is_ip4)
3755 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3756 sizeof (ip4_address_t));
3758 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3759 sizeof (ip6_address_t));
3760 ep->is_ip4 = session->transport.is_ip4;
3761 ep->port = session->transport.rmt_port;
3768 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3769 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3771 vcl_worker_t *wrk = vcl_worker_get_current ();
3774 s = vcl_session_get_w_handle (wrk, session_handle);
3776 return VPPCOM_EBADFD;
3779 return VPPCOM_EINVAL;
3783 if (!vcl_session_is_cl (s))
3784 return VPPCOM_EINVAL;
3786 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3787 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3789 u32 session_index = s->session_index;
3790 f64 timeout = vcm->cfg.session_timeout;
3793 vcl_send_session_connect (wrk, s);
3794 rv = vppcom_wait_for_session_state_change (session_index,
3799 s = vcl_session_get (wrk, session_index);
3802 s->transport.is_ip4 = ep->is_ip4;
3803 s->transport.rmt_port = ep->port;
3804 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3809 // TBD check the flags and do the right thing
3810 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3813 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3814 s->is_dgram ? 1 : 0));
3818 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3820 vcl_worker_t *wrk = vcl_worker_get_current ();
3821 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3822 u32 i, keep_trying = 1;
3823 svm_msg_q_msg_t msg;
3827 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3830 return VPPCOM_EFAULT;
3834 vcl_session_t *session;
3836 /* Dequeue all events and drop all unhandled io events */
3837 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3839 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3840 vcl_handle_mq_event (wrk, e);
3841 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3843 vec_reset_length (wrk->unhandled_evts_vector);
3845 for (i = 0; i < n_sids; i++)
3847 session = vcl_session_get (wrk, vp[i].sh);
3850 vp[i].revents = POLLHUP;
3857 if (POLLIN & vp[i].events)
3859 rv = vcl_session_read_ready (session);
3862 vp[i].revents |= POLLIN;
3869 case VPPCOM_ECONNRESET:
3870 vp[i].revents = POLLHUP;
3874 vp[i].revents = POLLERR;
3881 if (POLLOUT & vp[i].events)
3883 rv = vcl_session_write_ready (session);
3886 vp[i].revents |= POLLOUT;
3893 case VPPCOM_ECONNRESET:
3894 vp[i].revents = POLLHUP;
3898 vp[i].revents = POLLERR;
3905 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3907 vp[i].revents = POLLNVAL;
3911 if (wait_for_time != -1)
3912 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3914 while ((num_ev == 0) && keep_trying);
3920 vppcom_mq_epoll_fd (void)
3922 vcl_worker_t *wrk = vcl_worker_get_current ();
3923 return wrk->mqs_epfd;
3927 vppcom_session_index (vcl_session_handle_t session_handle)
3929 return session_handle & 0xFFFFFF;
3933 vppcom_session_worker (vcl_session_handle_t session_handle)
3935 return session_handle >> 24;
3939 vppcom_worker_register (void)
3941 if (!vcl_worker_alloc_and_init ())
3942 return VPPCOM_EEXIST;
3944 if (vcl_worker_register_with_vpp ())
3945 return VPPCOM_EEXIST;
3951 vppcom_worker_unregister (void)
3953 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3954 vcl_set_worker_index (~0);
3958 vppcom_worker_index_set (int index)
3960 vcl_set_worker_index (index);
3964 vppcom_worker_index (void)
3966 return vcl_get_worker_index ();
3970 vppcom_worker_mqs_epfd (void)
3972 vcl_worker_t *wrk = vcl_worker_get_current ();
3973 if (!vcm->cfg.use_mq_eventfd)
3975 return wrk->mqs_epfd;
3979 vppcom_session_is_connectable_listener (uint32_t session_handle)
3981 vcl_session_t *session;
3982 vcl_worker_t *wrk = vcl_worker_get_current ();
3983 session = vcl_session_get_w_handle (wrk, session_handle);
3985 return VPPCOM_EBADFD;
3986 return vcl_session_is_connectable_listener (wrk, session);
3990 vppcom_session_listener (uint32_t session_handle)
3992 vcl_worker_t *wrk = vcl_worker_get_current ();
3993 vcl_session_t *listen_session, *session;
3994 session = vcl_session_get_w_handle (wrk, session_handle);
3996 return VPPCOM_EBADFD;
3997 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3998 return VPPCOM_EBADFD;
3999 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4000 if (!listen_session)
4001 return VPPCOM_EBADFD;
4002 return vcl_session_handle (listen_session);
4006 vppcom_session_n_accepted (uint32_t session_handle)
4008 vcl_worker_t *wrk = vcl_worker_get_current ();
4009 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4011 return VPPCOM_EBADFD;
4012 return session->n_accepted_sessions;
4016 vppcom_proto_str (vppcom_proto_t proto)
4018 char const *proto_str;
4022 case VPPCOM_PROTO_TCP:
4025 case VPPCOM_PROTO_UDP:
4028 case VPPCOM_PROTO_TLS:
4031 case VPPCOM_PROTO_QUIC:
4034 case VPPCOM_PROTO_DTLS:
4038 proto_str = "UNKNOWN";
4045 vppcom_retval_str (int retval)
4056 st = "VPPCOM_EAGAIN";
4060 st = "VPPCOM_EFAULT";
4064 st = "VPPCOM_ENOMEM";
4068 st = "VPPCOM_EINVAL";
4072 st = "VPPCOM_EBADFD";
4075 case VPPCOM_EAFNOSUPPORT:
4076 st = "VPPCOM_EAFNOSUPPORT";
4079 case VPPCOM_ECONNABORTED:
4080 st = "VPPCOM_ECONNABORTED";
4083 case VPPCOM_ECONNRESET:
4084 st = "VPPCOM_ECONNRESET";
4087 case VPPCOM_ENOTCONN:
4088 st = "VPPCOM_ENOTCONN";
4091 case VPPCOM_ECONNREFUSED:
4092 st = "VPPCOM_ECONNREFUSED";
4095 case VPPCOM_ETIMEDOUT:
4096 st = "VPPCOM_ETIMEDOUT";
4100 st = "UNKNOWN_STATE";
4108 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4110 if (vcm->cfg.vpp_app_socket_api)
4112 clib_warning ("not supported");
4113 return VPPCOM_EINVAL;
4115 return vcl_bapi_add_cert_key_pair (ckpair);
4119 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4121 if (vcm->cfg.vpp_app_socket_api)
4123 clib_warning ("not supported");
4124 return VPPCOM_EINVAL;
4126 return vcl_bapi_del_cert_key_pair (ckpair_index);
4130 * fd.io coding-style-patch-verification: ON
4133 * eval: (c-set-style "gnu")