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_segment_is_not_mounted (vcl_worker_t * wrk, u64 segment_handle)
30 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
33 segment_index = vcl_segment_table_lookup (segment_handle);
34 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
41 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
47 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
48 for (i = 0; i < n_msgs; i++)
50 vec_add2 (wrk->mq_msg_vector, msg, 1);
51 svm_msg_q_sub_w_lock (mq, msg);
57 vppcom_session_state_str (vcl_session_state_t state)
63 case VCL_STATE_CLOSED:
66 case VCL_STATE_LISTEN:
72 case VCL_STATE_VPP_CLOSING:
73 st = "STATE_VPP_CLOSING";
75 case VCL_STATE_DISCONNECT:
76 st = "STATE_DISCONNECT";
78 case VCL_STATE_DETACHED:
79 st = "STATE_DETACHED";
81 case VCL_STATE_UPDATED:
84 case VCL_STATE_LISTEN_NO_MQ:
85 st = "STATE_LISTEN_NO_MQ";
96 format_ip4_address (u8 * s, va_list * args)
98 u8 *a = va_arg (*args, u8 *);
99 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
103 format_ip6_address (u8 * s, va_list * args)
105 ip6_address_t *a = va_arg (*args, ip6_address_t *);
106 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
108 i_max_n_zero = ARRAY_LEN (a->as_u16);
110 i_first_zero = i_max_n_zero;
112 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
114 u32 is_zero = a->as_u16[i] == 0;
115 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
121 if ((!is_zero && n_zeros > max_n_zeros)
122 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
124 i_max_n_zero = i_first_zero;
125 max_n_zeros = n_zeros;
126 i_first_zero = ARRAY_LEN (a->as_u16);
131 last_double_colon = 0;
132 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
134 if (i == i_max_n_zero && max_n_zeros > 1)
136 s = format (s, "::");
137 i += max_n_zeros - 1;
138 last_double_colon = 1;
142 s = format (s, "%s%x",
143 (last_double_colon || i == 0) ? "" : ":",
144 clib_net_to_host_u16 (a->as_u16[i]));
145 last_double_colon = 0;
152 /* Format an IP46 address. */
154 format_ip46_address (u8 * s, va_list * args)
156 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
157 ip46_type_t type = va_arg (*args, ip46_type_t);
163 is_ip4 = ip46_address_is_ip4 (ip46);
174 format (s, "%U", format_ip4_address, &ip46->ip4) :
175 format (s, "%U", format_ip6_address, &ip46->ip6);
179 * VPPCOM Utility Functions
183 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
185 app_session_evt_t _app_evt, *app_evt = &_app_evt;
186 session_listen_msg_t *mp;
189 mq = vcl_worker_ctrl_mq (wrk);
190 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
191 mp = (session_listen_msg_t *) app_evt->evt->data;
192 memset (mp, 0, sizeof (*mp));
193 mp->client_index = wrk->api_client_handle;
194 mp->context = s->session_index;
195 mp->wrk_index = wrk->vpp_wrk_index;
196 mp->is_ip4 = s->transport.is_ip4;
197 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
198 mp->port = s->transport.lcl_port;
199 mp->proto = s->session_type;
200 if (s->flags & VCL_SESSION_F_CONNECTED)
201 mp->flags = TRANSPORT_CFG_F_CONNECTED;
202 app_send_ctrl_evt_to_vpp (mq, app_evt);
206 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
208 app_session_evt_t _app_evt, *app_evt = &_app_evt;
209 session_connect_msg_t *mp;
212 mq = vcl_worker_ctrl_mq (wrk);
213 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
214 mp = (session_connect_msg_t *) app_evt->evt->data;
215 memset (mp, 0, sizeof (*mp));
216 mp->client_index = wrk->api_client_handle;
217 mp->context = s->session_index;
218 mp->wrk_index = wrk->vpp_wrk_index;
219 mp->is_ip4 = s->transport.is_ip4;
220 mp->parent_handle = s->parent_handle;
221 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
222 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
223 mp->port = s->transport.rmt_port;
224 mp->lcl_port = s->transport.lcl_port;
225 mp->proto = s->session_type;
226 if (s->flags & VCL_SESSION_F_CONNECTED)
227 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
228 app_send_ctrl_evt_to_vpp (mq, app_evt);
232 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
234 app_session_evt_t _app_evt, *app_evt = &_app_evt;
235 session_unlisten_msg_t *mp;
238 mq = vcl_worker_ctrl_mq (wrk);
239 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
240 mp = (session_unlisten_msg_t *) app_evt->evt->data;
241 memset (mp, 0, sizeof (*mp));
242 mp->client_index = wrk->api_client_handle;
243 mp->wrk_index = wrk->vpp_wrk_index;
244 mp->handle = s->vpp_handle;
245 mp->context = wrk->wrk_index;
246 app_send_ctrl_evt_to_vpp (mq, app_evt);
250 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
252 app_session_evt_t _app_evt, *app_evt = &_app_evt;
253 session_disconnect_msg_t *mp;
256 /* Send to thread that owns the session */
258 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
259 mp = (session_disconnect_msg_t *) app_evt->evt->data;
260 memset (mp, 0, sizeof (*mp));
261 mp->client_index = wrk->api_client_handle;
262 mp->handle = s->vpp_handle;
263 app_send_ctrl_evt_to_vpp (mq, app_evt);
267 vcl_send_app_detach (vcl_worker_t * wrk)
269 app_session_evt_t _app_evt, *app_evt = &_app_evt;
270 session_app_detach_msg_t *mp;
273 mq = vcl_worker_ctrl_mq (wrk);
274 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
275 mp = (session_app_detach_msg_t *) app_evt->evt->data;
276 memset (mp, 0, sizeof (*mp));
277 mp->client_index = wrk->api_client_handle;
278 app_send_ctrl_evt_to_vpp (mq, app_evt);
282 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
283 session_handle_t handle, int retval)
285 app_session_evt_t _app_evt, *app_evt = &_app_evt;
286 session_accepted_reply_msg_t *rmp;
287 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
288 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
289 rmp->handle = handle;
290 rmp->context = context;
291 rmp->retval = retval;
292 app_send_ctrl_evt_to_vpp (mq, app_evt);
296 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
299 app_session_evt_t _app_evt, *app_evt = &_app_evt;
300 session_disconnected_reply_msg_t *rmp;
301 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
302 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
303 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
304 rmp->handle = s->vpp_handle;
305 rmp->context = wrk->api_client_handle;
306 rmp->retval = retval;
307 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
311 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
314 app_session_evt_t _app_evt, *app_evt = &_app_evt;
315 session_reset_reply_msg_t *rmp;
316 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
317 SESSION_CTRL_EVT_RESET_REPLY);
318 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
319 rmp->handle = s->vpp_handle;
320 rmp->context = wrk->api_client_handle;
321 rmp->retval = retval;
322 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
326 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
329 app_session_evt_t _app_evt, *app_evt = &_app_evt;
330 session_worker_update_msg_t *mp;
332 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
333 SESSION_CTRL_EVT_WORKER_UPDATE);
334 mp = (session_worker_update_msg_t *) app_evt->evt->data;
335 mp->client_index = wrk->api_client_handle;
336 mp->handle = s->vpp_handle;
337 mp->req_wrk_index = wrk->vpp_wrk_index;
338 mp->wrk_index = wrk_index;
339 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
343 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
345 app_session_evt_t _app_evt, *app_evt = &_app_evt;
346 session_app_wrk_rpc_msg_t *mp;
347 vcl_worker_t *dst_wrk, *wrk;
351 if (data_len > sizeof (mp->data))
354 clib_spinlock_lock (&vcm->workers_lock);
356 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
360 wrk = vcl_worker_get_current ();
361 mq = vcl_worker_ctrl_mq (wrk);
362 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
363 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
364 mp->client_index = wrk->api_client_handle;
365 mp->wrk_index = dst_wrk->vpp_wrk_index;
366 clib_memcpy (mp->data, data, data_len);
367 app_send_ctrl_evt_to_vpp (mq, app_evt);
371 clib_spinlock_unlock (&vcm->workers_lock);
376 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
379 vcl_session_t *session, *listen_session;
380 svm_fifo_t *rx_fifo, *tx_fifo;
383 session = vcl_session_alloc (wrk);
385 listen_session = vcl_session_get (wrk, ls_index);
386 if (listen_session->vpp_handle != mp->listener_handle)
388 VDBG (0, "ERROR: listener handle %lu does not match session %u",
389 mp->listener_handle, ls_index);
393 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
395 VDBG (0, "ERROR: segment for session %u is not mounted!",
396 session->session_index);
400 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
401 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
402 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
404 rx_fifo->client_session_index = session->session_index;
405 tx_fifo->client_session_index = session->session_index;
406 rx_fifo->client_thread_index = vcl_get_worker_index ();
407 tx_fifo->client_thread_index = vcl_get_worker_index ();
409 session->vpp_handle = mp->handle;
410 session->rx_fifo = rx_fifo;
411 session->tx_fifo = tx_fifo;
413 session->session_state = VCL_STATE_READY;
414 session->transport.rmt_port = mp->rmt.port;
415 session->transport.is_ip4 = mp->rmt.is_ip4;
416 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
417 sizeof (ip46_address_t));
419 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
420 session->transport.lcl_port = listen_session->transport.lcl_port;
421 session->transport.lcl_ip = listen_session->transport.lcl_ip;
422 session->session_type = listen_session->session_type;
423 session->is_dgram = vcl_proto_is_dgram (session->session_type);
424 session->listener_index = listen_session->session_index;
425 listen_session->n_accepted_sessions++;
427 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
428 " port %d queue %p!", session->session_index, mp->handle,
429 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
430 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
431 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
432 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
434 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
435 session->vpp_handle, 0);
437 return session->session_index;
440 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
441 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
442 VNET_API_ERROR_INVALID_ARGUMENT);
443 vcl_session_free (wrk, session);
444 return VCL_INVALID_SESSION_INDEX;
448 vcl_session_connected_handler (vcl_worker_t * wrk,
449 session_connected_msg_t * mp)
451 svm_fifo_t *rx_fifo, *tx_fifo;
452 vcl_session_t *session = 0;
455 session_index = mp->context;
456 session = vcl_session_get (wrk, session_index);
459 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
460 mp->handle, session_index);
461 return VCL_INVALID_SESSION_INDEX;
465 VDBG (0, "ERROR: session index %u: connect failed! %U",
466 session_index, format_session_error, mp->retval);
467 session->session_state = VCL_STATE_DETACHED;
468 session->vpp_handle = mp->handle;
469 return session_index;
472 session->vpp_handle = mp->handle;
473 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
475 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
476 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
477 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
479 VDBG (0, "segment for session %u is not mounted!",
480 session->session_index);
481 session->session_state = VCL_STATE_DETACHED;
482 vcl_send_session_disconnect (wrk, session);
483 return session_index;
486 rx_fifo->client_session_index = session_index;
487 tx_fifo->client_session_index = session_index;
488 rx_fifo->client_thread_index = vcl_get_worker_index ();
489 tx_fifo->client_thread_index = vcl_get_worker_index ();
493 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
494 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
495 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
497 VDBG (0, "ct segment for session %u is not mounted!",
498 session->session_index);
499 session->session_state = VCL_STATE_DETACHED;
500 vcl_send_session_disconnect (wrk, session);
501 return session_index;
505 session->rx_fifo = rx_fifo;
506 session->tx_fifo = tx_fifo;
507 session->transport.is_ip4 = mp->lcl.is_ip4;
508 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
509 sizeof (session->transport.lcl_ip));
510 session->transport.lcl_port = mp->lcl.port;
512 /* Application closed session before connect reply */
513 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
514 && session->session_state == VCL_STATE_CLOSED)
515 vcl_send_session_disconnect (wrk, session);
517 session->session_state = VCL_STATE_READY;
519 /* Add it to lookup table */
520 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
522 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
523 " refcnt %d", session_index, mp->handle, session->rx_fifo,
524 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
526 return session_index;
530 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
532 vcl_session_msg_t *accepted_msg;
535 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
537 accepted_msg = &session->accept_evts_fifo[i];
538 if (accepted_msg->accepted_msg.handle == handle)
540 accepted_msg->flags |= flags;
548 vcl_session_reset_handler (vcl_worker_t * wrk,
549 session_reset_msg_t * reset_msg)
551 vcl_session_t *session;
554 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
555 session = vcl_session_get (wrk, sid);
558 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
559 return VCL_INVALID_SESSION_INDEX;
562 /* Caught a reset before actually accepting the session */
563 if (session->session_state == VCL_STATE_LISTEN)
566 if (!vcl_flag_accepted_session (session, reset_msg->handle,
567 VCL_ACCEPTED_F_RESET))
568 VDBG (0, "session was not accepted!");
569 return VCL_INVALID_SESSION_INDEX;
572 if (session->session_state != VCL_STATE_CLOSED)
573 session->session_state = VCL_STATE_DISCONNECT;
574 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
579 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
581 vcl_session_t *session;
582 u32 sid = mp->context;
584 session = vcl_session_get (wrk, sid);
587 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
588 format_session_error, mp->retval);
591 session->session_state = VCL_STATE_DETACHED;
592 session->vpp_handle = mp->handle;
597 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
599 return VCL_INVALID_SESSION_INDEX;
603 session->vpp_handle = mp->handle;
604 session->transport.is_ip4 = mp->lcl_is_ip4;
605 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
606 sizeof (ip46_address_t));
607 session->transport.lcl_port = mp->lcl_port;
608 vcl_session_table_add_listener (wrk, mp->handle, sid);
609 session->session_state = VCL_STATE_LISTEN;
610 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
612 if (vcl_session_is_cl (session))
614 svm_fifo_t *rx_fifo, *tx_fifo;
615 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
616 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
617 rx_fifo->client_session_index = sid;
618 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
619 tx_fifo->client_session_index = sid;
620 session->rx_fifo = rx_fifo;
621 session->tx_fifo = tx_fifo;
624 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
629 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
631 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
634 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
637 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
640 if (s->session_state != VCL_STATE_DISCONNECT)
642 /* Connected udp listener */
643 if (s->session_type == VPPCOM_PROTO_UDP
644 && s->session_state == VCL_STATE_CLOSED)
647 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
652 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
653 s->session_index, mp->handle, format_session_error, mp->retval);
655 if (mp->context != wrk->wrk_index)
656 VDBG (0, "wrong context");
658 vcl_session_table_del_vpp_handle (wrk, mp->handle);
659 vcl_session_free (wrk, s);
663 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
665 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 s->vpp_handle = mp->new_handle;
676 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
678 vcl_session_table_del_vpp_handle (wrk, mp->handle);
679 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
681 /* Generate new tx event if we have outstanding data */
682 if (svm_fifo_has_event (s->tx_fifo))
683 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
684 SESSION_IO_EVT_TX, SVM_Q_WAIT);
686 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
687 mp->vpp_thread_index, mp->new_handle);
690 static vcl_session_t *
691 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
693 vcl_session_msg_t *vcl_msg;
694 vcl_session_t *session;
696 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
697 if (PREDICT_FALSE (session != 0))
698 VWRN ("session overlap handle %lu state %u!", msg->handle,
699 session->session_state);
701 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
704 VERR ("couldn't find listen session: listener handle %llx",
705 msg->listener_handle);
709 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
711 vcl_msg->accepted_msg = *msg;
712 /* Session handle points to listener until fully accepted by app */
713 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
718 static vcl_session_t *
719 vcl_session_disconnected_handler (vcl_worker_t * wrk,
720 session_disconnected_msg_t * msg)
722 vcl_session_t *session;
724 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
727 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
731 /* Late disconnect notification on a session that has been closed */
732 if (session->session_state == VCL_STATE_CLOSED)
735 /* Caught a disconnect before actually accepting the session */
736 if (session->session_state == VCL_STATE_LISTEN)
738 if (!vcl_flag_accepted_session (session, msg->handle,
739 VCL_ACCEPTED_F_CLOSED))
740 VDBG (0, "session was not accepted!");
744 /* If not already reset change state */
745 if (session->session_state != VCL_STATE_DISCONNECT)
746 session->session_state = VCL_STATE_VPP_CLOSING;
752 vppcom_session_disconnect (u32 session_handle)
754 vcl_worker_t *wrk = vcl_worker_get_current ();
755 vcl_session_t *session, *listen_session;
756 vcl_session_state_t state;
759 session = vcl_session_get_w_handle (wrk, session_handle);
761 return VPPCOM_EBADFD;
763 vpp_handle = session->vpp_handle;
764 state = session->session_state;
766 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
767 vpp_handle, state, vppcom_session_state_str (state));
769 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
771 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
772 return VPPCOM_EBADFD;
775 if (state == VCL_STATE_VPP_CLOSING)
777 vcl_send_session_disconnected_reply (wrk, session, 0);
778 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
779 session->session_index, vpp_handle);
783 /* Session doesn't have an event queue yet. Probably a non-blocking
784 * connect. Wait for the reply */
785 if (PREDICT_FALSE (!session->vpp_evt_q))
788 VDBG (1, "session %u [0x%llx]: sending disconnect...",
789 session->session_index, vpp_handle);
790 vcl_send_session_disconnect (wrk, session);
793 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
795 listen_session = vcl_session_get (wrk, session->listener_index);
796 listen_session->n_accepted_sessions--;
803 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
805 session_cleanup_msg_t *msg;
806 vcl_session_t *session;
808 msg = (session_cleanup_msg_t *) data;
809 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
812 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
816 if (msg->type == SESSION_CLEANUP_TRANSPORT)
818 /* Transport was cleaned up before we confirmed close. Probably the
819 * app is still waiting for some data that cannot be delivered.
820 * Confirm close to make sure everything is cleaned up.
821 * Move to undetermined state to ensure that the session is not
822 * removed before both vpp and the app cleanup.
823 * - If the app closes first, the session is moved to CLOSED state
824 * and the session cleanup notification from vpp removes the
826 * - If vpp cleans up the session first, the session is moved to
827 * DETACHED state lower and subsequently the close from the app
830 if (session->session_state == VCL_STATE_VPP_CLOSING)
832 vppcom_session_disconnect (vcl_session_handle (session));
833 session->session_state = VCL_STATE_UPDATED;
835 else if (session->session_state == VCL_STATE_DISCONNECT)
837 vcl_send_session_reset_reply (wrk, session, 0);
838 session->session_state = VCL_STATE_UPDATED;
843 vcl_session_table_del_vpp_handle (wrk, msg->handle);
844 /* Should not happen. App did not close the connection so don't free it. */
845 if (session->session_state != VCL_STATE_CLOSED)
847 VDBG (0, "app did not close session %d", session->session_index);
848 session->session_state = VCL_STATE_DETACHED;
849 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
852 vcl_session_free (wrk, session);
856 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
858 session_req_worker_update_msg_t *msg;
861 msg = (session_req_worker_update_msg_t *) data;
862 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
866 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
870 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
872 session_worker_update_reply_msg_t *msg;
875 msg = (session_worker_update_reply_msg_t *) data;
876 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
879 VDBG (0, "unknown handle 0x%llx", msg->handle);
882 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
884 clib_warning ("segment for session %u is not mounted!",
891 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
892 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
893 s->rx_fifo->client_session_index = s->session_index;
894 s->tx_fifo->client_session_index = s->session_index;
895 s->rx_fifo->client_thread_index = wrk->wrk_index;
896 s->tx_fifo->client_thread_index = wrk->wrk_index;
898 s->session_state = VCL_STATE_UPDATED;
900 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
901 s->vpp_handle, wrk->wrk_index);
905 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
908 if (vcm->cfg.vpp_app_socket_api)
909 return vcl_sapi_recv_fds (wrk, fds, n_fds);
911 return vcl_bapi_recv_fds (wrk, fds, n_fds);
915 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
917 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
918 session_app_add_segment_msg_t *msg;
922 msg = (session_app_add_segment_msg_t *) data;
926 vcl_api_recv_fd (wrk, &fd, 1);
927 seg_type = SSVM_SEGMENT_MEMFD;
930 segment_handle = msg->segment_handle;
931 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
933 clib_warning ("invalid segment handle");
937 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
940 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
944 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
949 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
951 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
952 vcl_segment_detach (msg->segment_handle);
953 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
957 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
959 if (!vcm->wrk_rpc_fn)
962 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
966 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
968 session_disconnected_msg_t *disconnected_msg;
969 session_connected_msg_t *connected_msg;
970 session_reset_msg_t *reset_msg;
971 session_event_t *ecpy;
975 switch (e->event_type)
977 case SESSION_IO_EVT_RX:
978 case SESSION_IO_EVT_TX:
979 s = vcl_session_get (wrk, e->session_index);
980 if (!s || !vcl_session_is_open (s))
982 vec_add1 (wrk->unhandled_evts_vector, *e);
984 case SESSION_CTRL_EVT_BOUND:
985 /* We can only wait for only one listen so not postponed */
986 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
988 case SESSION_CTRL_EVT_ACCEPTED:
989 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
990 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
992 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
995 ecpy->session_index = s->session_index;
998 case SESSION_CTRL_EVT_CONNECTED:
999 connected_msg = (session_connected_msg_t *) e->data;
1000 sid = vcl_session_connected_handler (wrk, connected_msg);
1001 if (!(s = vcl_session_get (wrk, sid)))
1003 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1005 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1007 ecpy->postponed = 1;
1008 ecpy->session_index = s->session_index;
1011 case SESSION_CTRL_EVT_DISCONNECTED:
1012 disconnected_msg = (session_disconnected_msg_t *) e->data;
1013 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1015 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1017 vec_add1 (wrk->unhandled_evts_vector, *e);
1020 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1022 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1025 case SESSION_CTRL_EVT_RESET:
1026 reset_msg = (session_reset_msg_t *) e->data;
1027 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1029 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1031 vec_add1 (wrk->unhandled_evts_vector, *e);
1034 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1036 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1037 vcl_session_unlisten_reply_handler (wrk, e->data);
1039 case SESSION_CTRL_EVT_MIGRATED:
1040 vcl_session_migrated_handler (wrk, e->data);
1042 case SESSION_CTRL_EVT_CLEANUP:
1043 vcl_session_cleanup_handler (wrk, e->data);
1045 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1046 vcl_session_req_worker_update_handler (wrk, e->data);
1048 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1049 vcl_session_worker_update_reply_handler (wrk, e->data);
1051 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1052 vcl_session_app_add_segment_handler (wrk, e->data);
1054 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1055 vcl_session_app_del_segment_handler (wrk, e->data);
1057 case SESSION_CTRL_EVT_APP_WRK_RPC:
1058 vcl_worker_rpc_handler (wrk, e->data);
1061 clib_warning ("unhandled %u", e->event_type);
1067 vppcom_wait_for_session_state_change (u32 session_index,
1068 vcl_session_state_t state,
1071 vcl_worker_t *wrk = vcl_worker_get_current ();
1072 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1073 vcl_session_t *volatile session;
1074 svm_msg_q_msg_t msg;
1079 session = vcl_session_get (wrk, session_index);
1080 if (PREDICT_FALSE (!session))
1082 return VPPCOM_EBADFD;
1084 if (session->session_state == state)
1088 if (session->session_state == VCL_STATE_DETACHED)
1090 return VPPCOM_ECONNREFUSED;
1093 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1098 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1099 vcl_handle_mq_event (wrk, e);
1100 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1102 while (clib_time_now (&wrk->clib_time) < timeout);
1104 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1105 vppcom_session_state_str (state));
1106 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1108 return VPPCOM_ETIMEDOUT;
1112 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1114 vcl_session_state_t state;
1118 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1121 vec_foreach (sip, wrk->pending_session_wrk_updates)
1123 s = vcl_session_get (wrk, *sip);
1124 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1125 state = s->session_state;
1126 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1128 s->session_state = state;
1130 vec_reset_length (wrk->pending_session_wrk_updates);
1134 vcl_flush_mq_events (void)
1136 vcl_worker_t *wrk = vcl_worker_get_current ();
1137 svm_msg_q_msg_t *msg;
1142 mq = wrk->app_event_queue;
1143 svm_msg_q_lock (mq);
1144 vcl_mq_dequeue_batch (wrk, mq, ~0);
1145 svm_msg_q_unlock (mq);
1147 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1149 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1150 e = svm_msg_q_msg_data (mq, msg);
1151 vcl_handle_mq_event (wrk, e);
1152 svm_msg_q_free_msg (mq, msg);
1154 vec_reset_length (wrk->mq_msg_vector);
1155 vcl_handle_pending_wrk_updates (wrk);
1159 vppcom_session_unbind (u32 session_handle)
1161 vcl_worker_t *wrk = vcl_worker_get_current ();
1162 session_accepted_msg_t *accepted_msg;
1163 vcl_session_t *session = 0;
1164 vcl_session_msg_t *evt;
1166 session = vcl_session_get_w_handle (wrk, session_handle);
1168 return VPPCOM_EBADFD;
1170 /* Flush pending accept events, if any */
1171 while (clib_fifo_elts (session->accept_evts_fifo))
1173 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1174 accepted_msg = &evt->accepted_msg;
1175 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1176 vcl_send_session_accepted_reply (session->vpp_evt_q,
1177 accepted_msg->context,
1178 accepted_msg->handle, -1);
1180 clib_fifo_free (session->accept_evts_fifo);
1182 vcl_send_session_unlisten (wrk, session);
1184 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1185 session->vpp_handle);
1186 vcl_evt (VCL_EVT_UNBIND, session);
1188 session->vpp_handle = ~0;
1189 session->session_state = VCL_STATE_DISCONNECT;
1197 * Notify vpp of the disconnect and mark the worker as free. If we're the
1198 * last worker, do a full cleanup otherwise, since we're probably a forked
1199 * child, avoid syscalls as much as possible. We might've lost privileges.
1202 vppcom_app_exit (void)
1204 if (!pool_elts (vcm->workers))
1206 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1207 vcl_set_worker_index (~0);
1208 vcl_elog_stop (vcm);
1212 vcl_api_attach (void)
1214 if (vcm->cfg.vpp_app_socket_api)
1215 return vcl_sapi_attach ();
1217 return vcl_bapi_attach ();
1221 vcl_api_detach (vcl_worker_t * wrk)
1223 vcl_send_app_detach (wrk);
1225 if (vcm->cfg.vpp_app_socket_api)
1226 return vcl_sapi_detach (wrk);
1228 return vcl_bapi_disconnect_from_vpp ();
1232 * VPPCOM Public API functions
1235 vppcom_app_create (const char *app_name)
1237 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1242 VDBG (1, "already initialized");
1243 return VPPCOM_EEXIST;
1247 vppcom_cfg (&vcm->cfg);
1248 vcl_cfg = &vcm->cfg;
1250 vcm->main_cpu = pthread_self ();
1251 vcm->main_pid = getpid ();
1252 vcm->app_name = format (0, "%s", app_name);
1253 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1254 20 /* timeout in secs */ );
1255 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1256 clib_spinlock_init (&vcm->workers_lock);
1257 clib_rwlock_init (&vcm->segment_table_lock);
1258 atexit (vppcom_app_exit);
1259 vcl_elog_init (vcm);
1261 /* Allocate default worker */
1262 vcl_worker_alloc_and_init ();
1264 if ((rv = vcl_api_attach ()))
1267 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1268 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1274 vppcom_app_destroy (void)
1276 vcl_worker_t *wrk, *current_wrk;
1279 if (!pool_elts (vcm->workers))
1282 vcl_evt (VCL_EVT_DETACH, vcm);
1284 current_wrk = vcl_worker_get_current ();
1287 pool_foreach (wrk, vcm->workers) {
1288 if (current_wrk != wrk)
1289 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1293 vcl_api_detach (current_wrk);
1294 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1296 vcl_elog_stop (vcm);
1299 * Free the heap and fix vcm
1301 heap = clib_mem_get_heap ();
1302 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1304 vcm = &_vppcom_main;
1309 vppcom_session_create (u8 proto, u8 is_nonblocking)
1311 vcl_worker_t *wrk = vcl_worker_get_current ();
1312 vcl_session_t *session;
1314 session = vcl_session_alloc (wrk);
1316 session->session_type = proto;
1317 session->session_state = VCL_STATE_CLOSED;
1318 session->vpp_handle = ~0;
1319 session->is_dgram = vcl_proto_is_dgram (proto);
1322 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1324 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1325 is_nonblocking, session_index);
1327 VDBG (0, "created session %u", session->session_index);
1329 return vcl_session_handle (session);
1333 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1334 vcl_session_handle_t sh, u8 do_disconnect)
1338 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1340 if (s->flags & VCL_SESSION_F_IS_VEP)
1342 u32 next_sh = s->vep.next_sh;
1343 while (next_sh != ~0)
1345 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1346 if (PREDICT_FALSE (rv < 0))
1347 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1348 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1349 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1350 next_sh = s->vep.next_sh;
1355 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1357 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1359 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1360 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1361 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1366 VDBG (1, "session %u [0x%llx] disconnect skipped",
1367 s->session_index, s->vpp_handle);
1371 if (s->session_state == VCL_STATE_LISTEN)
1373 rv = vppcom_session_unbind (sh);
1374 if (PREDICT_FALSE (rv < 0))
1375 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1376 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1377 vppcom_retval_str (rv));
1380 else if (vcl_session_is_ready (s)
1381 || (vcl_session_is_connectable_listener (wrk, s)))
1383 rv = vppcom_session_disconnect (sh);
1384 if (PREDICT_FALSE (rv < 0))
1385 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1386 " rv %d (%s)", s->session_index, s->vpp_handle,
1387 rv, vppcom_retval_str (rv));
1389 else if (s->session_state == VCL_STATE_DISCONNECT)
1391 vcl_send_session_reset_reply (wrk, s, 0);
1393 else if (s->session_state == VCL_STATE_DETACHED)
1395 /* Should not happen. VPP cleaned up before app confirmed close */
1396 VDBG (0, "vpp freed session %d before close", s->session_index);
1400 s->session_state = VCL_STATE_CLOSED;
1402 /* Session is removed only after vpp confirms the disconnect */
1406 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1408 vcl_session_free (wrk, s);
1409 vcl_evt (VCL_EVT_CLOSE, s, rv);
1415 vppcom_session_close (uint32_t session_handle)
1417 vcl_worker_t *wrk = vcl_worker_get_current ();
1418 vcl_session_t *session;
1420 session = vcl_session_get_w_handle (wrk, session_handle);
1422 return VPPCOM_EBADFD;
1423 return vcl_session_cleanup (wrk, session, session_handle,
1424 1 /* do_disconnect */ );
1428 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1430 vcl_worker_t *wrk = vcl_worker_get_current ();
1431 vcl_session_t *session = 0;
1434 return VPPCOM_EINVAL;
1436 session = vcl_session_get_w_handle (wrk, session_handle);
1438 return VPPCOM_EBADFD;
1440 if (session->flags & VCL_SESSION_F_IS_VEP)
1442 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1443 session->session_index);
1444 return VPPCOM_EBADFD;
1447 session->transport.is_ip4 = ep->is_ip4;
1449 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1450 sizeof (ip4_address_t));
1452 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1453 sizeof (ip6_address_t));
1454 session->transport.lcl_port = ep->port;
1456 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1457 "proto %s", session->session_index, session_handle,
1458 session->transport.is_ip4 ? "IPv4" : "IPv6",
1459 format_ip46_address, &session->transport.lcl_ip,
1460 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1461 clib_net_to_host_u16 (session->transport.lcl_port),
1462 vppcom_proto_str (session->session_type));
1463 vcl_evt (VCL_EVT_BIND, session);
1465 if (session->session_type == VPPCOM_PROTO_UDP)
1466 vppcom_session_listen (session_handle, 10);
1472 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1474 vcl_worker_t *wrk = vcl_worker_get_current ();
1475 vcl_session_t *listen_session = 0;
1476 u64 listen_vpp_handle;
1479 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1480 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1481 return VPPCOM_EBADFD;
1483 if (q_len == 0 || q_len == ~0)
1484 q_len = vcm->cfg.listen_queue_size;
1486 listen_vpp_handle = listen_session->vpp_handle;
1487 if (listen_session->session_state == VCL_STATE_LISTEN)
1489 VDBG (0, "session %u [0x%llx]: already in listen state!",
1490 listen_sh, listen_vpp_handle);
1494 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1497 * Send listen request to vpp and wait for reply
1499 vcl_send_session_listen (wrk, listen_session);
1500 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1502 vcm->cfg.session_timeout);
1504 if (PREDICT_FALSE (rv))
1506 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1507 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1508 listen_sh, listen_session->vpp_handle, rv,
1509 vppcom_retval_str (rv));
1517 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1519 if (ls->flags & VCL_SESSION_F_IS_VEP)
1521 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1523 return VPPCOM_EBADFD;
1526 if ((ls->session_state != VCL_STATE_LISTEN)
1527 && (!vcl_session_is_connectable_listener (wrk, ls)))
1529 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1530 " (%s)", ls->vpp_handle, ls->session_state,
1531 vppcom_session_state_str (ls->session_state));
1532 return VPPCOM_EBADFD;
1538 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1540 if (!strcmp (proto_str, "TCP"))
1541 *proto = VPPCOM_PROTO_TCP;
1542 else if (!strcmp (proto_str, "tcp"))
1543 *proto = VPPCOM_PROTO_TCP;
1544 else if (!strcmp (proto_str, "UDP"))
1545 *proto = VPPCOM_PROTO_UDP;
1546 else if (!strcmp (proto_str, "udp"))
1547 *proto = VPPCOM_PROTO_UDP;
1548 else if (!strcmp (proto_str, "TLS"))
1549 *proto = VPPCOM_PROTO_TLS;
1550 else if (!strcmp (proto_str, "tls"))
1551 *proto = VPPCOM_PROTO_TLS;
1552 else if (!strcmp (proto_str, "QUIC"))
1553 *proto = VPPCOM_PROTO_QUIC;
1554 else if (!strcmp (proto_str, "quic"))
1555 *proto = VPPCOM_PROTO_QUIC;
1562 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1565 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1566 vcl_worker_t *wrk = vcl_worker_get_current ();
1567 session_accepted_msg_t accepted_msg;
1568 vcl_session_t *listen_session = 0;
1569 vcl_session_t *client_session = 0;
1570 vcl_session_msg_t *evt;
1571 svm_msg_q_msg_t msg;
1576 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1577 if (!listen_session)
1578 return VPPCOM_EBADFD;
1580 listen_session_index = listen_session->session_index;
1581 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1584 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1586 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1587 accept_flags = evt->flags;
1588 accepted_msg = evt->accepted_msg;
1592 is_nonblocking = vcl_session_has_attr (listen_session,
1593 VCL_SESS_ATTR_NONBLOCK);
1596 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1597 return VPPCOM_EAGAIN;
1599 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1600 return VPPCOM_EAGAIN;
1602 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1603 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1605 vcl_handle_mq_event (wrk, e);
1606 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1609 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1610 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1616 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1617 listen_session_index);
1618 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1619 return VPPCOM_ECONNABORTED;
1621 listen_session = vcl_session_get (wrk, listen_session_index);
1622 client_session = vcl_session_get (wrk, client_session_index);
1624 if (flags & O_NONBLOCK)
1625 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1627 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1628 " flags %d, is_nonblocking %u", listen_session->session_index,
1629 listen_session->vpp_handle, client_session_index,
1630 client_session->vpp_handle, flags,
1631 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1635 ep->is_ip4 = client_session->transport.is_ip4;
1636 ep->port = client_session->transport.rmt_port;
1637 if (client_session->transport.is_ip4)
1638 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1639 sizeof (ip4_address_t));
1641 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1642 sizeof (ip6_address_t));
1645 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1646 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1647 client_session_index, client_session->vpp_handle,
1648 format_ip46_address, &client_session->transport.rmt_ip,
1649 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1650 clib_net_to_host_u16 (client_session->transport.rmt_port),
1651 format_ip46_address, &client_session->transport.lcl_ip,
1652 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1653 clib_net_to_host_u16 (client_session->transport.lcl_port));
1654 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1655 client_session_index);
1658 * Session might have been closed already
1662 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1663 client_session->session_state = VCL_STATE_VPP_CLOSING;
1664 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1665 client_session->session_state = VCL_STATE_DISCONNECT;
1667 return vcl_session_handle (client_session);
1671 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1673 vcl_worker_t *wrk = vcl_worker_get_current ();
1674 vcl_session_t *session = 0;
1678 session = vcl_session_get_w_handle (wrk, session_handle);
1680 return VPPCOM_EBADFD;
1681 session_index = session->session_index;
1683 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1685 VDBG (0, "ERROR: cannot connect epoll session %u!",
1686 session->session_index);
1687 return VPPCOM_EBADFD;
1690 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1692 VDBG (0, "session handle %u [0x%llx]: session already "
1693 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1694 session_handle, session->vpp_handle,
1695 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1696 &session->transport.rmt_ip, session->transport.is_ip4 ?
1697 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1698 clib_net_to_host_u16 (session->transport.rmt_port),
1699 vppcom_proto_str (session->session_type), session->session_state,
1700 vppcom_session_state_str (session->session_state));
1704 /* Attempt to connect a connectionless listener */
1705 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1707 if (session->session_type != VPPCOM_PROTO_UDP)
1708 return VPPCOM_EINVAL;
1709 vcl_send_session_unlisten (wrk, session);
1710 session->session_state = VCL_STATE_CLOSED;
1713 session->transport.is_ip4 = server_ep->is_ip4;
1714 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1715 session->transport.rmt_port = server_ep->port;
1716 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1717 session->flags |= VCL_SESSION_F_CONNECTED;
1719 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1720 "port %d proto %s", session_handle,
1721 vppcom_session_state_str (session->session_state),
1722 session->transport.is_ip4 ? "IPv4" : "IPv6",
1723 format_ip46_address,
1724 &session->transport.rmt_ip, session->transport.is_ip4 ?
1725 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1726 clib_net_to_host_u16 (session->transport.rmt_port),
1727 vppcom_proto_str (session->session_type));
1729 vcl_send_session_connect (wrk, session);
1731 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1733 /* State set to STATE_UPDATED to ensure the session is not assumed
1734 * to be ready and to also allow the app to close it prior to vpp's
1735 * connected reply. */
1736 session->session_state = VCL_STATE_UPDATED;
1737 return VPPCOM_EINPROGRESS;
1741 * Wait for reply from vpp if blocking
1743 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1744 vcm->cfg.session_timeout);
1746 session = vcl_session_get (wrk, session_index);
1747 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1748 session->vpp_handle, rv ? "failed" : "succeeded");
1754 vppcom_session_stream_connect (uint32_t session_handle,
1755 uint32_t parent_session_handle)
1757 vcl_worker_t *wrk = vcl_worker_get_current ();
1758 vcl_session_t *session, *parent_session;
1759 u32 session_index, parent_session_index;
1762 session = vcl_session_get_w_handle (wrk, session_handle);
1764 return VPPCOM_EBADFD;
1765 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1766 if (!parent_session)
1767 return VPPCOM_EBADFD;
1769 session_index = session->session_index;
1770 parent_session_index = parent_session->session_index;
1771 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1773 VDBG (0, "ERROR: cannot connect epoll session %u!",
1774 session->session_index);
1775 return VPPCOM_EBADFD;
1778 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1780 VDBG (0, "session handle %u [0x%llx]: session already "
1781 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1782 session_handle, session->vpp_handle,
1783 parent_session_handle, parent_session->vpp_handle,
1784 vppcom_proto_str (session->session_type), session->session_state,
1785 vppcom_session_state_str (session->session_state));
1789 /* Connect to quic session specifics */
1790 session->transport.is_ip4 = parent_session->transport.is_ip4;
1791 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1792 session->transport.rmt_port = 0;
1793 session->parent_handle = parent_session->vpp_handle;
1795 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1796 session_handle, parent_session_handle, parent_session->vpp_handle);
1799 * Send connect request and wait for reply from vpp
1801 vcl_send_session_connect (wrk, session);
1802 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1803 vcm->cfg.session_timeout);
1805 session->listener_index = parent_session_index;
1806 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1808 parent_session->n_accepted_sessions++;
1810 session = vcl_session_get (wrk, session_index);
1811 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1812 session->vpp_handle, rv ? "failed" : "succeeded");
1818 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1820 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1824 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1827 vcl_worker_t *wrk = vcl_worker_get_current ();
1828 int rv, n_read = 0, is_nonblocking;
1829 vcl_session_t *s = 0;
1830 svm_fifo_t *rx_fifo;
1831 svm_msg_q_msg_t msg;
1836 if (PREDICT_FALSE (!buf))
1837 return VPPCOM_EINVAL;
1839 s = vcl_session_get_w_handle (wrk, session_handle);
1840 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1841 return VPPCOM_EBADFD;
1843 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1845 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1846 s->session_index, s->vpp_handle, s->session_state,
1847 vppcom_session_state_str (s->session_state));
1848 return vcl_session_closed_error (s);
1851 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1852 is_ct = vcl_session_is_ct (s);
1853 mq = wrk->app_event_queue;
1854 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1855 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1857 if (svm_fifo_is_empty_cons (rx_fifo))
1861 if (vcl_session_is_closing (s))
1862 return vcl_session_closing_error (s);
1864 svm_fifo_unset_event (s->rx_fifo);
1865 svm_fifo_unset_event (rx_fifo);
1866 return VPPCOM_EWOULDBLOCK;
1868 while (svm_fifo_is_empty_cons (rx_fifo))
1870 if (vcl_session_is_closing (s))
1871 return vcl_session_closing_error (s);
1874 svm_fifo_unset_event (s->rx_fifo);
1875 svm_fifo_unset_event (rx_fifo);
1876 svm_msg_q_lock (mq);
1877 if (svm_msg_q_is_empty (mq))
1878 svm_msg_q_wait (mq);
1880 svm_msg_q_sub_w_lock (mq, &msg);
1881 e = svm_msg_q_msg_data (mq, &msg);
1882 svm_msg_q_unlock (mq);
1883 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1884 vcl_handle_mq_event (wrk, e);
1885 svm_msg_q_free_msg (mq, &msg);
1892 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1894 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1899 if (svm_fifo_is_empty_cons (rx_fifo))
1902 svm_fifo_unset_event (s->rx_fifo);
1903 svm_fifo_unset_event (rx_fifo);
1904 if (!svm_fifo_is_empty_cons (rx_fifo)
1905 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1907 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1908 e->event_type = SESSION_IO_EVT_RX;
1909 e->session_index = s->session_index;
1912 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1914 /* More data enqueued while reading. Try to drain it
1915 * or fill the buffer. Avoid doing that for dgrams */
1921 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1923 svm_fifo_clear_deq_ntf (rx_fifo);
1924 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1925 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1928 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1929 s->vpp_handle, n_read, rx_fifo);
1935 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1937 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1941 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1943 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1947 vppcom_session_read_segments (uint32_t session_handle,
1948 vppcom_data_segment_t * ds, uint32_t n_segments,
1951 vcl_worker_t *wrk = vcl_worker_get_current ();
1952 int n_read = 0, is_nonblocking;
1953 vcl_session_t *s = 0;
1954 svm_fifo_t *rx_fifo;
1955 svm_msg_q_msg_t msg;
1960 s = vcl_session_get_w_handle (wrk, session_handle);
1961 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1962 return VPPCOM_EBADFD;
1964 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1965 return vcl_session_closed_error (s);
1967 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1968 is_ct = vcl_session_is_ct (s);
1969 mq = wrk->app_event_queue;
1970 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1971 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1973 if (svm_fifo_is_empty_cons (rx_fifo))
1978 svm_fifo_unset_event (s->rx_fifo);
1979 svm_fifo_unset_event (rx_fifo);
1980 return VPPCOM_EWOULDBLOCK;
1982 while (svm_fifo_is_empty_cons (rx_fifo))
1984 if (vcl_session_is_closing (s))
1985 return vcl_session_closing_error (s);
1988 svm_fifo_unset_event (s->rx_fifo);
1989 svm_fifo_unset_event (rx_fifo);
1990 svm_msg_q_lock (mq);
1991 if (svm_msg_q_is_empty (mq))
1992 svm_msg_q_wait (mq);
1994 svm_msg_q_sub_w_lock (mq, &msg);
1995 e = svm_msg_q_msg_data (mq, &msg);
1996 svm_msg_q_unlock (mq);
1997 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1998 vcl_handle_mq_event (wrk, e);
1999 svm_msg_q_free_msg (mq, &msg);
2003 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2004 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
2006 return VPPCOM_EAGAIN;
2008 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2011 svm_fifo_unset_event (s->rx_fifo);
2012 svm_fifo_unset_event (rx_fifo);
2013 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2014 && svm_fifo_set_event (rx_fifo)
2015 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2018 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2019 e->event_type = SESSION_IO_EVT_RX;
2020 e->session_index = s->session_index;
2024 s->rx_bytes_pending += n_read;
2029 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2031 vcl_worker_t *wrk = vcl_worker_get_current ();
2035 s = vcl_session_get_w_handle (wrk, session_handle);
2036 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2039 is_ct = vcl_session_is_ct (s);
2040 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2042 ASSERT (s->rx_bytes_pending < n_bytes);
2043 s->rx_bytes_pending -= n_bytes;
2047 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2049 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2053 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2055 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2057 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2063 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2064 size_t n, u8 is_flush, u8 is_dgram)
2066 int n_write, is_nonblocking;
2067 session_evt_type_t et;
2068 svm_msg_q_msg_t msg;
2069 svm_fifo_t *tx_fifo;
2074 if (PREDICT_FALSE (!buf || n == 0))
2075 return VPPCOM_EINVAL;
2077 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2079 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2080 " session!", s->session_index, s->vpp_handle);
2081 return VPPCOM_EBADFD;
2084 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2086 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2087 s->session_index, s->vpp_handle, s->session_state,
2088 vppcom_session_state_str (s->session_state));
2089 return vcl_session_closed_error (s);;
2092 is_ct = vcl_session_is_ct (s);
2093 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2094 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2096 mq = wrk->app_event_queue;
2097 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2101 return VPPCOM_EWOULDBLOCK;
2103 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2105 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2106 if (vcl_session_is_closing (s))
2107 return vcl_session_closing_error (s);
2108 svm_msg_q_lock (mq);
2109 if (svm_msg_q_is_empty (mq))
2110 svm_msg_q_wait (mq);
2112 svm_msg_q_sub_w_lock (mq, &msg);
2113 e = svm_msg_q_msg_data (mq, &msg);
2114 svm_msg_q_unlock (mq);
2116 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2117 vcl_handle_mq_event (wrk, e);
2118 svm_msg_q_free_msg (mq, &msg);
2122 et = SESSION_IO_EVT_TX;
2123 if (is_flush && !is_ct)
2124 et = SESSION_IO_EVT_TX_FLUSH;
2127 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2128 s->vpp_evt_q, buf, n, et,
2129 0 /* do_evt */ , SVM_Q_WAIT);
2131 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2132 0 /* do_evt */ , SVM_Q_WAIT);
2134 if (svm_fifo_set_event (s->tx_fifo))
2135 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2138 /* The underlying fifo segment can run out of memory */
2139 if (PREDICT_FALSE (n_write < 0))
2140 return VPPCOM_EAGAIN;
2142 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2143 s->vpp_handle, n_write);
2149 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2151 vcl_worker_t *wrk = vcl_worker_get_current ();
2154 s = vcl_session_get_w_handle (wrk, session_handle);
2155 if (PREDICT_FALSE (!s))
2156 return VPPCOM_EBADFD;
2158 return vppcom_session_write_inline (wrk, s, buf, n,
2159 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2163 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2165 vcl_worker_t *wrk = vcl_worker_get_current ();
2168 s = vcl_session_get_w_handle (wrk, session_handle);
2169 if (PREDICT_FALSE (!s))
2170 return VPPCOM_EBADFD;
2172 return vppcom_session_write_inline (wrk, s, buf, n,
2173 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2176 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2177 if (PREDICT_FALSE (!_s->rx_fifo)) \
2179 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2181 if (!vcl_session_is_ct (_s)) \
2183 svm_fifo_unset_event (_s->rx_fifo); \
2184 if (svm_fifo_is_empty (_s->rx_fifo)) \
2187 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2189 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2190 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2196 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2197 unsigned long n_bits, unsigned long *read_map,
2198 unsigned long *write_map,
2199 unsigned long *except_map, u32 * bits_set)
2201 session_disconnected_msg_t *disconnected_msg;
2202 session_connected_msg_t *connected_msg;
2206 switch (e->event_type)
2208 case SESSION_IO_EVT_RX:
2209 sid = e->session_index;
2210 s = vcl_session_get (wrk, sid);
2211 if (!s || !vcl_session_is_open (s))
2213 vcl_fifo_rx_evt_valid_or_break (s);
2214 if (sid < n_bits && read_map)
2216 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2220 case SESSION_IO_EVT_TX:
2221 sid = e->session_index;
2222 s = vcl_session_get (wrk, sid);
2223 if (!s || !vcl_session_is_open (s))
2225 if (sid < n_bits && write_map)
2227 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2231 case SESSION_CTRL_EVT_ACCEPTED:
2233 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2235 s = vcl_session_get (wrk, e->session_index);
2238 sid = s->session_index;
2239 if (sid < n_bits && read_map)
2241 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2245 case SESSION_CTRL_EVT_CONNECTED:
2248 connected_msg = (session_connected_msg_t *) e->data;
2249 sid = vcl_session_connected_handler (wrk, connected_msg);
2252 sid = e->session_index;
2253 if (sid == VCL_INVALID_SESSION_INDEX)
2255 if (sid < n_bits && write_map)
2257 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2261 case SESSION_CTRL_EVT_DISCONNECTED:
2262 disconnected_msg = (session_disconnected_msg_t *) e->data;
2263 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2266 sid = s->session_index;
2267 if (sid < n_bits && except_map)
2269 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2273 case SESSION_CTRL_EVT_RESET:
2274 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2275 if (sid < n_bits && except_map)
2277 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2281 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2282 vcl_session_unlisten_reply_handler (wrk, e->data);
2284 case SESSION_CTRL_EVT_MIGRATED:
2285 vcl_session_migrated_handler (wrk, e->data);
2287 case SESSION_CTRL_EVT_CLEANUP:
2288 vcl_session_cleanup_handler (wrk, e->data);
2290 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2291 vcl_session_worker_update_reply_handler (wrk, e->data);
2293 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2294 vcl_session_req_worker_update_handler (wrk, e->data);
2296 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2297 vcl_session_app_add_segment_handler (wrk, e->data);
2299 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2300 vcl_session_app_del_segment_handler (wrk, e->data);
2302 case SESSION_CTRL_EVT_APP_WRK_RPC:
2303 vcl_worker_rpc_handler (wrk, e->data);
2306 clib_warning ("unhandled: %u", e->event_type);
2312 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2313 unsigned long n_bits, unsigned long *read_map,
2314 unsigned long *write_map, unsigned long *except_map,
2315 double time_to_wait, u32 * bits_set)
2317 svm_msg_q_msg_t *msg;
2321 svm_msg_q_lock (mq);
2322 if (svm_msg_q_is_empty (mq))
2326 svm_msg_q_unlock (mq);
2332 svm_msg_q_unlock (mq);
2335 else if (time_to_wait < 0)
2337 svm_msg_q_wait (mq);
2341 if (svm_msg_q_timedwait (mq, time_to_wait))
2343 svm_msg_q_unlock (mq);
2348 vcl_mq_dequeue_batch (wrk, mq, ~0);
2349 svm_msg_q_unlock (mq);
2351 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2353 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2354 e = svm_msg_q_msg_data (mq, msg);
2355 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2356 except_map, bits_set);
2357 svm_msg_q_free_msg (mq, msg);
2359 vec_reset_length (wrk->mq_msg_vector);
2360 vcl_handle_pending_wrk_updates (wrk);
2365 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2366 vcl_si_set * read_map, vcl_si_set * write_map,
2367 vcl_si_set * except_map, double time_to_wait,
2370 double wait = 0, start = 0;
2374 wait = time_to_wait;
2375 start = clib_time_now (&wrk->clib_time);
2380 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2381 write_map, except_map, wait, bits_set);
2387 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2395 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2396 vcl_si_set * read_map, vcl_si_set * write_map,
2397 vcl_si_set * except_map, double time_to_wait,
2400 vcl_mq_evt_conn_t *mqc;
2401 int __clib_unused n_read;
2405 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2406 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2407 vec_len (wrk->mq_events), time_to_wait);
2408 for (i = 0; i < n_mq_evts; i++)
2410 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2411 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2412 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2413 except_map, 0, bits_set);
2416 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2420 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2421 vcl_si_set * except_map, double time_to_wait)
2423 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2424 vcl_worker_t *wrk = vcl_worker_get_current ();
2425 vcl_session_t *session = 0;
2428 if (n_bits && read_map)
2430 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2431 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2432 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2433 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2435 if (n_bits && write_map)
2437 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2438 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2439 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2440 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2442 if (n_bits && except_map)
2444 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2445 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2446 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2447 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2457 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2458 if (!(session = vcl_session_get (wrk, sid)))
2460 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2465 if (vcl_session_write_ready (session))
2467 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2471 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2478 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2479 if (!(session = vcl_session_get (wrk, sid)))
2481 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2486 if (vcl_session_read_ready (session))
2488 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2496 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2498 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2499 read_map, write_map, except_map, &bits_set);
2501 vec_reset_length (wrk->unhandled_evts_vector);
2503 if (vcm->cfg.use_mq_eventfd)
2504 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2505 time_to_wait, &bits_set);
2507 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2508 time_to_wait, &bits_set);
2514 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2516 vppcom_epoll_t *vep;
2517 u32 sh = vep_handle;
2520 if (VPPCOM_DEBUG <= 2)
2523 s = vcl_session_get_w_handle (wrk, vep_handle);
2524 if (PREDICT_FALSE (!s))
2526 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2529 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2531 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2535 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2538 " is_vep_session = %u\n"
2539 " next_sh = 0x%x (%u)\n"
2540 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2541 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2543 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2545 s = vcl_session_get_w_handle (wrk, sh);
2546 if (PREDICT_FALSE (!s))
2548 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2551 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2553 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2555 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2557 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2561 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2562 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2563 sh, s->vep.vep_sh, vep_handle);
2564 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2566 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2568 " next_sh = 0x%x (%u)\n"
2569 " prev_sh = 0x%x (%u)\n"
2570 " vep_sh = 0x%x (%u)\n"
2571 " ev.events = 0x%x\n"
2572 " ev.data.u64 = 0x%llx\n"
2575 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2576 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2577 vep->ev.data.u64, vep->et_mask);
2582 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2586 vppcom_epoll_create (void)
2588 vcl_worker_t *wrk = vcl_worker_get_current ();
2589 vcl_session_t *vep_session;
2591 vep_session = vcl_session_alloc (wrk);
2593 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2594 vep_session->vep.vep_sh = ~0;
2595 vep_session->vep.next_sh = ~0;
2596 vep_session->vep.prev_sh = ~0;
2597 vep_session->vpp_handle = ~0;
2599 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2600 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2602 return vcl_session_handle (vep_session);
2606 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2607 struct epoll_event *event)
2609 vcl_worker_t *wrk = vcl_worker_get_current ();
2610 vcl_session_t *vep_session;
2615 if (vep_handle == session_handle)
2617 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2618 return VPPCOM_EINVAL;
2621 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2622 if (PREDICT_FALSE (!vep_session))
2624 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2625 return VPPCOM_EBADFD;
2627 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2629 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2630 return VPPCOM_EINVAL;
2633 ASSERT (vep_session->vep.vep_sh == ~0);
2634 ASSERT (vep_session->vep.prev_sh == ~0);
2636 s = vcl_session_get_w_handle (wrk, session_handle);
2637 if (PREDICT_FALSE (!s))
2639 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2640 return VPPCOM_EBADFD;
2642 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2644 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2645 return VPPCOM_EINVAL;
2651 if (PREDICT_FALSE (!event))
2653 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2654 return VPPCOM_EINVAL;
2656 if (vep_session->vep.next_sh != ~0)
2658 vcl_session_t *next_session;
2659 next_session = vcl_session_get_w_handle (wrk,
2660 vep_session->vep.next_sh);
2661 if (PREDICT_FALSE (!next_session))
2663 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2664 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2665 return VPPCOM_EBADFD;
2667 ASSERT (next_session->vep.prev_sh == vep_handle);
2668 next_session->vep.prev_sh = session_handle;
2670 s->vep.next_sh = vep_session->vep.next_sh;
2671 s->vep.prev_sh = vep_handle;
2672 s->vep.vep_sh = vep_handle;
2673 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2675 s->flags &= ~VCL_SESSION_F_IS_VEP;
2676 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2677 vep_session->vep.next_sh = session_handle;
2679 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2680 if (txf && (event->events & EPOLLOUT))
2681 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2683 /* Generate EPOLLOUT if tx fifo not full */
2684 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2686 session_event_t e = { 0 };
2687 e.event_type = SESSION_IO_EVT_TX;
2688 e.session_index = s->session_index;
2689 vec_add1 (wrk->unhandled_evts_vector, e);
2691 /* Generate EPOLLIN if rx fifo has data */
2692 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2694 session_event_t e = { 0 };
2695 e.event_type = SESSION_IO_EVT_RX;
2696 e.session_index = s->session_index;
2697 vec_add1 (wrk->unhandled_evts_vector, e);
2699 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2700 vep_handle, session_handle, event->events, event->data.u64);
2701 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2705 if (PREDICT_FALSE (!event))
2707 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2711 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2713 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2717 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2719 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2720 session_handle, s->vep.vep_sh, vep_handle);
2725 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2726 if ((event->events & EPOLLOUT) &&
2727 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2729 session_event_t e = { 0 };
2730 e.event_type = SESSION_IO_EVT_TX;
2731 e.session_index = s->session_index;
2732 vec_add1 (wrk->unhandled_evts_vector, e);
2734 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2736 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2737 if (event->events & EPOLLOUT)
2738 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2740 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2741 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2742 vep_handle, session_handle, event->events, event->data.u64);
2746 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2748 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2752 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2754 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2755 session_handle, s->vep.vep_sh, vep_handle);
2760 if (s->vep.prev_sh == vep_handle)
2761 vep_session->vep.next_sh = s->vep.next_sh;
2764 vcl_session_t *prev_session;
2765 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2766 if (PREDICT_FALSE (!prev_session))
2768 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2769 s->vep.prev_sh, session_handle);
2770 return VPPCOM_EBADFD;
2772 ASSERT (prev_session->vep.next_sh == session_handle);
2773 prev_session->vep.next_sh = s->vep.next_sh;
2775 if (s->vep.next_sh != ~0)
2777 vcl_session_t *next_session;
2778 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2779 if (PREDICT_FALSE (!next_session))
2781 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2782 s->vep.next_sh, session_handle);
2783 return VPPCOM_EBADFD;
2785 ASSERT (next_session->vep.prev_sh == session_handle);
2786 next_session->vep.prev_sh = s->vep.prev_sh;
2789 memset (&s->vep, 0, sizeof (s->vep));
2790 s->vep.next_sh = ~0;
2791 s->vep.prev_sh = ~0;
2793 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2795 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2797 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2799 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2801 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2805 VDBG (0, "Invalid operation (%d)!", op);
2809 vep_verify_epoll_chain (wrk, vep_handle);
2816 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2817 struct epoll_event *events, u32 * num_ev)
2819 session_disconnected_msg_t *disconnected_msg;
2820 session_connected_msg_t *connected_msg;
2821 u32 sid = ~0, session_events;
2822 u64 session_evt_data = ~0;
2826 switch (e->event_type)
2828 case SESSION_IO_EVT_RX:
2829 sid = e->session_index;
2830 s = vcl_session_get (wrk, sid);
2831 if (vcl_session_is_closed (s))
2833 vcl_fifo_rx_evt_valid_or_break (s);
2834 session_events = s->vep.ev.events;
2835 if (!(EPOLLIN & s->vep.ev.events)
2836 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2839 events[*num_ev].events |= EPOLLIN;
2840 session_evt_data = s->vep.ev.data.u64;
2841 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2843 case SESSION_IO_EVT_TX:
2844 sid = e->session_index;
2845 s = vcl_session_get (wrk, sid);
2846 if (vcl_session_is_closed (s))
2848 session_events = s->vep.ev.events;
2849 if (!(EPOLLOUT & session_events))
2852 events[*num_ev].events |= EPOLLOUT;
2853 session_evt_data = s->vep.ev.data.u64;
2854 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2855 s->ct_tx_fifo : s->tx_fifo);
2857 case SESSION_CTRL_EVT_ACCEPTED:
2859 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2861 s = vcl_session_get (wrk, e->session_index);
2864 session_events = s->vep.ev.events;
2865 sid = s->session_index;
2866 if (!(EPOLLIN & session_events))
2869 events[*num_ev].events |= EPOLLIN;
2870 session_evt_data = s->vep.ev.data.u64;
2872 case SESSION_CTRL_EVT_CONNECTED:
2875 connected_msg = (session_connected_msg_t *) e->data;
2876 sid = vcl_session_connected_handler (wrk, connected_msg);
2879 sid = e->session_index;
2880 s = vcl_session_get (wrk, sid);
2881 if (vcl_session_is_closed (s))
2883 session_events = s->vep.ev.events;
2884 /* Generate EPOLLOUT because there's no connected event */
2885 if (!(EPOLLOUT & session_events))
2888 events[*num_ev].events |= EPOLLOUT;
2889 session_evt_data = s->vep.ev.data.u64;
2890 if (s->session_state == VCL_STATE_DETACHED)
2891 events[*num_ev].events |= EPOLLHUP;
2893 case SESSION_CTRL_EVT_DISCONNECTED:
2894 disconnected_msg = (session_disconnected_msg_t *) e->data;
2895 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2896 if (vcl_session_is_closed (s))
2898 sid = s->session_index;
2899 session_events = s->vep.ev.events;
2901 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2902 session_evt_data = s->vep.ev.data.u64;
2904 case SESSION_CTRL_EVT_RESET:
2905 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2906 s = vcl_session_get (wrk, sid);
2907 if (vcl_session_is_closed (s))
2909 session_events = s->vep.ev.events;
2911 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2912 session_evt_data = s->vep.ev.data.u64;
2914 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2915 vcl_session_unlisten_reply_handler (wrk, e->data);
2917 case SESSION_CTRL_EVT_MIGRATED:
2918 vcl_session_migrated_handler (wrk, e->data);
2920 case SESSION_CTRL_EVT_CLEANUP:
2921 vcl_session_cleanup_handler (wrk, e->data);
2923 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2924 vcl_session_req_worker_update_handler (wrk, e->data);
2926 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2927 vcl_session_worker_update_reply_handler (wrk, e->data);
2929 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2930 vcl_session_app_add_segment_handler (wrk, e->data);
2932 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2933 vcl_session_app_del_segment_handler (wrk, e->data);
2935 case SESSION_CTRL_EVT_APP_WRK_RPC:
2936 vcl_worker_rpc_handler (wrk, e->data);
2939 VDBG (0, "unhandled: %u", e->event_type);
2945 events[*num_ev].data.u64 = session_evt_data;
2946 if (EPOLLONESHOT & session_events)
2948 s = vcl_session_get (wrk, sid);
2949 s->vep.ev.events = 0;
2956 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2957 struct epoll_event *events, u32 maxevents,
2958 double wait_for_time, u32 * num_ev)
2960 svm_msg_q_msg_t *msg;
2964 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2965 goto handle_dequeued;
2967 svm_msg_q_lock (mq);
2968 if (svm_msg_q_is_empty (mq))
2972 svm_msg_q_unlock (mq);
2975 else if (wait_for_time < 0)
2977 svm_msg_q_wait (mq);
2981 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2983 svm_msg_q_unlock (mq);
2988 ASSERT (maxevents > *num_ev);
2989 vcl_mq_dequeue_batch (wrk, mq, ~0);
2990 svm_msg_q_unlock (mq);
2993 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2995 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2996 e = svm_msg_q_msg_data (mq, msg);
2997 if (*num_ev < maxevents)
2998 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3000 vcl_handle_mq_event (wrk, e);
3001 svm_msg_q_free_msg (mq, msg);
3003 vec_reset_length (wrk->mq_msg_vector);
3004 vcl_handle_pending_wrk_updates (wrk);
3009 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
3010 int maxevents, u32 n_evts, double wait_for_time)
3012 double wait = 0, start = 0, now;
3016 wait = wait_for_time;
3017 start = clib_time_now (&wrk->clib_time);
3022 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3029 now = clib_time_now (&wrk->clib_time);
3030 wait -= (now - start) * 1e3;
3039 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3040 int maxevents, u32 n_evts, double wait_for_time)
3042 vcl_mq_evt_conn_t *mqc;
3043 int __clib_unused n_read;
3047 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3049 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3050 vec_len (wrk->mq_events), wait_for_time);
3051 for (i = 0; i < n_mq_evts; i++)
3053 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3054 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3055 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3057 if (!n_evts && n_mq_evts > 0)
3060 return (int) n_evts;
3064 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3065 int maxevents, double wait_for_time)
3067 vcl_worker_t *wrk = vcl_worker_get_current ();
3068 vcl_session_t *vep_session;
3072 if (PREDICT_FALSE (maxevents <= 0))
3074 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3075 return VPPCOM_EINVAL;
3078 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3080 return VPPCOM_EBADFD;
3082 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3084 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3085 return VPPCOM_EINVAL;
3088 memset (events, 0, sizeof (*events) * maxevents);
3090 if (vec_len (wrk->unhandled_evts_vector))
3092 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3094 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3096 if (n_evts == maxevents)
3098 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3102 vec_reset_length (wrk->unhandled_evts_vector);
3105 if (vcm->cfg.use_mq_eventfd)
3106 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3109 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3114 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3115 void *buffer, uint32_t * buflen)
3117 vcl_worker_t *wrk = vcl_worker_get_current ();
3118 vcl_session_t *session;
3120 u32 *flags = buffer, tmp_flags = 0;
3121 vppcom_endpt_t *ep = buffer;
3123 session = vcl_session_get_w_handle (wrk, session_handle);
3125 return VPPCOM_EBADFD;
3129 case VPPCOM_ATTR_GET_NREAD:
3130 rv = vcl_session_read_ready (session);
3131 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3135 case VPPCOM_ATTR_GET_NWRITE:
3136 rv = vcl_session_write_ready (session);
3137 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3141 case VPPCOM_ATTR_GET_FLAGS:
3142 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3146 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3148 *buflen = sizeof (*flags);
3149 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3150 "is_nonblocking = %u", session_handle, *flags,
3151 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3157 case VPPCOM_ATTR_SET_FLAGS:
3158 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3160 if (*flags & O_NONBLOCK)
3161 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3163 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3165 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3166 " is_nonblocking = %u", session_handle, *flags,
3167 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3173 case VPPCOM_ATTR_GET_PEER_ADDR:
3174 if (PREDICT_TRUE (buffer && buflen &&
3175 (*buflen >= sizeof (*ep)) && ep->ip))
3177 ep->is_ip4 = session->transport.is_ip4;
3178 ep->port = session->transport.rmt_port;
3179 if (session->transport.is_ip4)
3180 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3181 sizeof (ip4_address_t));
3183 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3184 sizeof (ip6_address_t));
3185 *buflen = sizeof (*ep);
3186 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3187 "addr = %U, port %u", session_handle, ep->is_ip4,
3188 format_ip46_address, &session->transport.rmt_ip,
3189 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3190 clib_net_to_host_u16 (ep->port));
3196 case VPPCOM_ATTR_GET_LCL_ADDR:
3197 if (PREDICT_TRUE (buffer && buflen &&
3198 (*buflen >= sizeof (*ep)) && ep->ip))
3200 ep->is_ip4 = session->transport.is_ip4;
3201 ep->port = session->transport.lcl_port;
3202 if (session->transport.is_ip4)
3203 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3204 sizeof (ip4_address_t));
3206 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3207 sizeof (ip6_address_t));
3208 *buflen = sizeof (*ep);
3209 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3210 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3211 &session->transport.lcl_ip,
3212 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3213 clib_net_to_host_u16 (ep->port));
3219 case VPPCOM_ATTR_SET_LCL_ADDR:
3220 if (PREDICT_TRUE (buffer && buflen &&
3221 (*buflen >= sizeof (*ep)) && ep->ip))
3223 session->transport.is_ip4 = ep->is_ip4;
3224 session->transport.lcl_port = ep->port;
3225 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3226 *buflen = sizeof (*ep);
3227 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3228 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3229 &session->transport.lcl_ip,
3230 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3231 clib_net_to_host_u16 (ep->port));
3237 case VPPCOM_ATTR_GET_LIBC_EPFD:
3238 rv = session->libc_epfd;
3239 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3242 case VPPCOM_ATTR_SET_LIBC_EPFD:
3243 if (PREDICT_TRUE (buffer && buflen &&
3244 (*buflen == sizeof (session->libc_epfd))))
3246 session->libc_epfd = *(int *) buffer;
3247 *buflen = sizeof (session->libc_epfd);
3249 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3250 session->libc_epfd, *buflen);
3256 case VPPCOM_ATTR_GET_PROTOCOL:
3257 if (buffer && buflen && (*buflen >= sizeof (int)))
3259 *(int *) buffer = session->session_type;
3260 *buflen = sizeof (int);
3262 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3263 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3269 case VPPCOM_ATTR_GET_LISTEN:
3270 if (buffer && buflen && (*buflen >= sizeof (int)))
3272 *(int *) buffer = vcl_session_has_attr (session,
3273 VCL_SESS_ATTR_LISTEN);
3274 *buflen = sizeof (int);
3276 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3283 case VPPCOM_ATTR_GET_ERROR:
3284 if (buffer && buflen && (*buflen >= sizeof (int)))
3286 *(int *) buffer = 0;
3287 *buflen = sizeof (int);
3289 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3290 *(int *) buffer, *buflen);
3296 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3297 if (buffer && buflen && (*buflen >= sizeof (u32)))
3301 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3303 svm_fifo_size (session->tx_fifo) :
3304 vcm->cfg.tx_fifo_size);
3305 *buflen = sizeof (u32);
3307 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3308 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3315 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3316 if (buffer && buflen && (*buflen == sizeof (u32)))
3319 session->sndbuf_size = *(u32 *) buffer;
3320 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3321 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3328 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3329 if (buffer && buflen && (*buflen >= sizeof (u32)))
3333 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3335 svm_fifo_size (session->rx_fifo) :
3336 vcm->cfg.rx_fifo_size);
3337 *buflen = sizeof (u32);
3339 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3340 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3346 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3347 if (buffer && buflen && (*buflen == sizeof (u32)))
3350 session->rcvbuf_size = *(u32 *) buffer;
3351 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3352 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3359 case VPPCOM_ATTR_GET_REUSEADDR:
3360 if (buffer && buflen && (*buflen >= sizeof (int)))
3363 *(int *) buffer = vcl_session_has_attr (session,
3364 VCL_SESS_ATTR_REUSEADDR);
3365 *buflen = sizeof (int);
3367 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3368 *(int *) buffer, *buflen);
3374 case VPPCOM_ATTR_SET_REUSEADDR:
3375 if (buffer && buflen && (*buflen == sizeof (int)) &&
3376 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3379 if (*(int *) buffer)
3380 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3382 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3384 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3385 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3392 case VPPCOM_ATTR_GET_REUSEPORT:
3393 if (buffer && buflen && (*buflen >= sizeof (int)))
3396 *(int *) buffer = vcl_session_has_attr (session,
3397 VCL_SESS_ATTR_REUSEPORT);
3398 *buflen = sizeof (int);
3400 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3401 *(int *) buffer, *buflen);
3407 case VPPCOM_ATTR_SET_REUSEPORT:
3408 if (buffer && buflen && (*buflen == sizeof (int)) &&
3409 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3412 if (*(int *) buffer)
3413 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3415 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3417 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3418 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3425 case VPPCOM_ATTR_GET_BROADCAST:
3426 if (buffer && buflen && (*buflen >= sizeof (int)))
3429 *(int *) buffer = vcl_session_has_attr (session,
3430 VCL_SESS_ATTR_BROADCAST);
3431 *buflen = sizeof (int);
3433 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3434 *(int *) buffer, *buflen);
3440 case VPPCOM_ATTR_SET_BROADCAST:
3441 if (buffer && buflen && (*buflen == sizeof (int)))
3444 if (*(int *) buffer)
3445 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3447 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3449 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3450 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3457 case VPPCOM_ATTR_GET_V6ONLY:
3458 if (buffer && buflen && (*buflen >= sizeof (int)))
3461 *(int *) buffer = vcl_session_has_attr (session,
3462 VCL_SESS_ATTR_V6ONLY);
3463 *buflen = sizeof (int);
3465 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3466 *(int *) buffer, *buflen);
3472 case VPPCOM_ATTR_SET_V6ONLY:
3473 if (buffer && buflen && (*buflen == sizeof (int)))
3476 if (*(int *) buffer)
3477 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3479 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3481 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3482 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3489 case VPPCOM_ATTR_GET_KEEPALIVE:
3490 if (buffer && buflen && (*buflen >= sizeof (int)))
3493 *(int *) buffer = vcl_session_has_attr (session,
3494 VCL_SESS_ATTR_KEEPALIVE);
3495 *buflen = sizeof (int);
3497 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3498 *(int *) buffer, *buflen);
3504 case VPPCOM_ATTR_SET_KEEPALIVE:
3505 if (buffer && buflen && (*buflen == sizeof (int)))
3508 if (*(int *) buffer)
3509 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3511 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3513 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3514 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3521 case VPPCOM_ATTR_GET_TCP_NODELAY:
3522 if (buffer && buflen && (*buflen >= sizeof (int)))
3525 *(int *) buffer = vcl_session_has_attr (session,
3526 VCL_SESS_ATTR_TCP_NODELAY);
3527 *buflen = sizeof (int);
3529 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3530 *(int *) buffer, *buflen);
3536 case VPPCOM_ATTR_SET_TCP_NODELAY:
3537 if (buffer && buflen && (*buflen == sizeof (int)))
3540 if (*(int *) buffer)
3541 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3543 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3545 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3546 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3553 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3554 if (buffer && buflen && (*buflen >= sizeof (int)))
3557 *(int *) buffer = vcl_session_has_attr (session,
3558 VCL_SESS_ATTR_TCP_KEEPIDLE);
3559 *buflen = sizeof (int);
3561 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3562 *(int *) buffer, *buflen);
3568 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3569 if (buffer && buflen && (*buflen == sizeof (int)))
3572 if (*(int *) buffer)
3573 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3575 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3577 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3578 vcl_session_has_attr (session,
3579 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3585 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3586 if (buffer && buflen && (*buflen >= sizeof (int)))
3589 *(int *) buffer = vcl_session_has_attr (session,
3590 VCL_SESS_ATTR_TCP_KEEPINTVL);
3591 *buflen = sizeof (int);
3593 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3594 *(int *) buffer, *buflen);
3600 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3601 if (buffer && buflen && (*buflen == sizeof (int)))
3604 if (*(int *) buffer)
3605 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3607 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3609 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3610 vcl_session_has_attr (session,
3611 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3617 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3618 if (buffer && buflen && (*buflen >= sizeof (u32)))
3621 *(u32 *) buffer = session->user_mss;
3622 *buflen = sizeof (int);
3624 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3625 *(int *) buffer, *buflen);
3631 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3632 if (buffer && buflen && (*buflen == sizeof (u32)))
3635 session->user_mss = *(u32 *) buffer;
3637 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3638 session->user_mss, *buflen);
3644 case VPPCOM_ATTR_SET_SHUT:
3645 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3646 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3647 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3648 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3651 case VPPCOM_ATTR_GET_SHUT:
3652 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3654 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3657 *(int *) buffer = SHUT_RD;
3658 else if (tmp_flags == 2)
3659 *(int *) buffer = SHUT_WR;
3660 else if (tmp_flags == 3)
3661 *(int *) buffer = SHUT_RDWR;
3662 *buflen = sizeof (int);
3665 case VPPCOM_ATTR_SET_CONNECTED:
3666 session->flags |= VCL_SESSION_F_CONNECTED;
3678 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3679 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3681 vcl_worker_t *wrk = vcl_worker_get_current ();
3682 vcl_session_t *session;
3686 rv = vppcom_session_read (session_handle, buffer, buflen);
3687 else if (flags & MSG_PEEK)
3688 rv = vppcom_session_peek (session_handle, buffer, buflen);
3691 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3692 return VPPCOM_EAFNOSUPPORT;
3697 session = vcl_session_get_w_handle (wrk, session_handle);
3698 if (session->transport.is_ip4)
3699 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3700 sizeof (ip4_address_t));
3702 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3703 sizeof (ip6_address_t));
3704 ep->is_ip4 = session->transport.is_ip4;
3705 ep->port = session->transport.rmt_port;
3712 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3713 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3715 vcl_worker_t *wrk = vcl_worker_get_current ();
3718 s = vcl_session_get_w_handle (wrk, session_handle);
3720 return VPPCOM_EBADFD;
3723 return VPPCOM_EINVAL;
3727 if (!vcl_session_is_cl (s))
3728 return VPPCOM_EINVAL;
3730 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3731 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3733 u32 session_index = s->session_index;
3734 f64 timeout = vcm->cfg.session_timeout;
3737 vcl_send_session_connect (wrk, s);
3738 rv = vppcom_wait_for_session_state_change (session_index,
3743 s = vcl_session_get (wrk, session_index);
3746 s->transport.is_ip4 = ep->is_ip4;
3747 s->transport.rmt_port = ep->port;
3748 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3753 // TBD check the flags and do the right thing
3754 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3757 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3758 s->is_dgram ? 1 : 0));
3762 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3764 vcl_worker_t *wrk = vcl_worker_get_current ();
3765 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3766 u32 i, keep_trying = 1;
3767 svm_msg_q_msg_t msg;
3771 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3774 return VPPCOM_EFAULT;
3778 vcl_session_t *session;
3780 /* Dequeue all events and drop all unhandled io events */
3781 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3783 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3784 vcl_handle_mq_event (wrk, e);
3785 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3787 vec_reset_length (wrk->unhandled_evts_vector);
3789 for (i = 0; i < n_sids; i++)
3791 session = vcl_session_get (wrk, vp[i].sh);
3794 vp[i].revents = POLLHUP;
3801 if (POLLIN & vp[i].events)
3803 rv = vcl_session_read_ready (session);
3806 vp[i].revents |= POLLIN;
3813 case VPPCOM_ECONNRESET:
3814 vp[i].revents = POLLHUP;
3818 vp[i].revents = POLLERR;
3825 if (POLLOUT & vp[i].events)
3827 rv = vcl_session_write_ready (session);
3830 vp[i].revents |= POLLOUT;
3837 case VPPCOM_ECONNRESET:
3838 vp[i].revents = POLLHUP;
3842 vp[i].revents = POLLERR;
3849 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3851 vp[i].revents = POLLNVAL;
3855 if (wait_for_time != -1)
3856 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3858 while ((num_ev == 0) && keep_trying);
3864 vppcom_mq_epoll_fd (void)
3866 vcl_worker_t *wrk = vcl_worker_get_current ();
3867 return wrk->mqs_epfd;
3871 vppcom_session_index (vcl_session_handle_t session_handle)
3873 return session_handle & 0xFFFFFF;
3877 vppcom_session_worker (vcl_session_handle_t session_handle)
3879 return session_handle >> 24;
3883 vppcom_worker_register (void)
3885 if (!vcl_worker_alloc_and_init ())
3886 return VPPCOM_EEXIST;
3888 if (vcl_worker_register_with_vpp ())
3889 return VPPCOM_EEXIST;
3895 vppcom_worker_unregister (void)
3897 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3898 vcl_set_worker_index (~0);
3902 vppcom_worker_index_set (int index)
3904 vcl_set_worker_index (index);
3908 vppcom_worker_index (void)
3910 return vcl_get_worker_index ();
3914 vppcom_worker_mqs_epfd (void)
3916 vcl_worker_t *wrk = vcl_worker_get_current ();
3917 if (!vcm->cfg.use_mq_eventfd)
3919 return wrk->mqs_epfd;
3923 vppcom_session_is_connectable_listener (uint32_t session_handle)
3925 vcl_session_t *session;
3926 vcl_worker_t *wrk = vcl_worker_get_current ();
3927 session = vcl_session_get_w_handle (wrk, session_handle);
3929 return VPPCOM_EBADFD;
3930 return vcl_session_is_connectable_listener (wrk, session);
3934 vppcom_session_listener (uint32_t session_handle)
3936 vcl_worker_t *wrk = vcl_worker_get_current ();
3937 vcl_session_t *listen_session, *session;
3938 session = vcl_session_get_w_handle (wrk, session_handle);
3940 return VPPCOM_EBADFD;
3941 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3942 return VPPCOM_EBADFD;
3943 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3944 if (!listen_session)
3945 return VPPCOM_EBADFD;
3946 return vcl_session_handle (listen_session);
3950 vppcom_session_n_accepted (uint32_t session_handle)
3952 vcl_worker_t *wrk = vcl_worker_get_current ();
3953 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3955 return VPPCOM_EBADFD;
3956 return session->n_accepted_sessions;
3960 vppcom_proto_str (vppcom_proto_t proto)
3962 char const *proto_str;
3966 case VPPCOM_PROTO_TCP:
3969 case VPPCOM_PROTO_UDP:
3972 case VPPCOM_PROTO_TLS:
3975 case VPPCOM_PROTO_QUIC:
3979 proto_str = "UNKNOWN";
3986 vppcom_retval_str (int retval)
3997 st = "VPPCOM_EAGAIN";
4001 st = "VPPCOM_EFAULT";
4005 st = "VPPCOM_ENOMEM";
4009 st = "VPPCOM_EINVAL";
4013 st = "VPPCOM_EBADFD";
4016 case VPPCOM_EAFNOSUPPORT:
4017 st = "VPPCOM_EAFNOSUPPORT";
4020 case VPPCOM_ECONNABORTED:
4021 st = "VPPCOM_ECONNABORTED";
4024 case VPPCOM_ECONNRESET:
4025 st = "VPPCOM_ECONNRESET";
4028 case VPPCOM_ENOTCONN:
4029 st = "VPPCOM_ENOTCONN";
4032 case VPPCOM_ECONNREFUSED:
4033 st = "VPPCOM_ECONNREFUSED";
4036 case VPPCOM_ETIMEDOUT:
4037 st = "VPPCOM_ETIMEDOUT";
4041 st = "UNKNOWN_STATE";
4049 * fd.io coding-style-patch-verification: ON
4052 * eval: (c-set-style "gnu")