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 (svm_msg_q_t * mq, u32 context,
297 session_handle_t handle, int retval)
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 (mq, app_evt,
302 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
303 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
304 rmp->handle = handle;
305 rmp->context = context;
306 rmp->retval = retval;
307 app_send_ctrl_evt_to_vpp (mq, app_evt);
311 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
312 session_handle_t handle, int retval)
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 (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
317 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
318 rmp->handle = handle;
319 rmp->context = context;
320 rmp->retval = retval;
321 app_send_ctrl_evt_to_vpp (mq, app_evt);
325 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
328 app_session_evt_t _app_evt, *app_evt = &_app_evt;
329 session_worker_update_msg_t *mp;
332 mq = vcl_session_vpp_evt_q (wrk, s);
333 app_alloc_ctrl_evt_to_vpp (mq, app_evt, 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 (mq, 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;
384 session = vcl_session_alloc (wrk);
386 listen_session = vcl_session_get (wrk, ls_index);
387 if (listen_session->vpp_handle != mp->listener_handle)
389 VDBG (0, "ERROR: listener handle %lu does not match session %u",
390 mp->listener_handle, ls_index);
394 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
396 VDBG (0, "ERROR: segment for session %u is not mounted!",
397 session->session_index);
401 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
402 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
403 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
405 rx_fifo->client_session_index = session->session_index;
406 tx_fifo->client_session_index = session->session_index;
407 rx_fifo->client_thread_index = vcl_get_worker_index ();
408 tx_fifo->client_thread_index = vcl_get_worker_index ();
409 vpp_wrk_index = tx_fifo->master_thread_index;
410 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
411 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
413 session->vpp_handle = mp->handle;
414 session->vpp_thread_index = rx_fifo->master_thread_index;
415 session->rx_fifo = rx_fifo;
416 session->tx_fifo = tx_fifo;
418 session->session_state = VCL_STATE_READY;
419 session->transport.rmt_port = mp->rmt.port;
420 session->transport.is_ip4 = mp->rmt.is_ip4;
421 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
422 sizeof (ip46_address_t));
424 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
425 session->transport.lcl_port = listen_session->transport.lcl_port;
426 session->transport.lcl_ip = listen_session->transport.lcl_ip;
427 session->session_type = listen_session->session_type;
428 session->is_dgram = vcl_proto_is_dgram (session->session_type);
429 session->listener_index = listen_session->session_index;
430 listen_session->n_accepted_sessions++;
432 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
433 " port %d queue %p!", session->session_index, mp->handle,
434 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
435 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
436 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
437 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
439 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
440 session->vpp_handle, 0);
442 return session->session_index;
445 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
446 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
447 VNET_API_ERROR_INVALID_ARGUMENT);
448 vcl_session_free (wrk, session);
449 return VCL_INVALID_SESSION_INDEX;
453 vcl_session_connected_handler (vcl_worker_t * wrk,
454 session_connected_msg_t * mp)
456 u32 session_index, vpp_wrk_index;
457 svm_fifo_t *rx_fifo, *tx_fifo;
458 vcl_session_t *session = 0;
460 session_index = mp->context;
461 session = vcl_session_get (wrk, session_index);
464 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
465 mp->handle, session_index);
466 return VCL_INVALID_SESSION_INDEX;
470 VDBG (0, "ERROR: session index %u: connect failed! %U",
471 session_index, format_session_error, mp->retval);
472 session->session_state = VCL_STATE_DETACHED;
473 session->vpp_handle = mp->handle;
474 return session_index;
477 session->vpp_handle = mp->handle;
478 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
480 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
481 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
482 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
484 VDBG (0, "segment for session %u is not mounted!",
485 session->session_index);
486 session->session_state = VCL_STATE_DETACHED;
487 vcl_send_session_disconnect (wrk, session);
488 return session_index;
491 rx_fifo->client_session_index = session_index;
492 tx_fifo->client_session_index = session_index;
493 rx_fifo->client_thread_index = vcl_get_worker_index ();
494 tx_fifo->client_thread_index = vcl_get_worker_index ();
496 vpp_wrk_index = tx_fifo->master_thread_index;
497 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
498 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
502 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
503 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
504 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
506 VDBG (0, "ct segment for session %u is not mounted!",
507 session->session_index);
508 session->session_state = VCL_STATE_DETACHED;
509 vcl_send_session_disconnect (wrk, session);
510 return session_index;
514 session->rx_fifo = rx_fifo;
515 session->tx_fifo = tx_fifo;
516 session->vpp_thread_index = rx_fifo->master_thread_index;
517 session->transport.is_ip4 = mp->lcl.is_ip4;
518 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
519 sizeof (session->transport.lcl_ip));
520 session->transport.lcl_port = mp->lcl.port;
522 /* Application closed session before connect reply */
523 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
524 && session->session_state == VCL_STATE_CLOSED)
525 vcl_send_session_disconnect (wrk, session);
527 session->session_state = VCL_STATE_READY;
529 /* Add it to lookup table */
530 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
532 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
533 " refcnt %d", session_index, mp->handle, session->rx_fifo,
534 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
536 return session_index;
540 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
542 vcl_session_msg_t *accepted_msg;
545 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
547 accepted_msg = &session->accept_evts_fifo[i];
548 if (accepted_msg->accepted_msg.handle == handle)
550 accepted_msg->flags |= flags;
558 vcl_session_reset_handler (vcl_worker_t * wrk,
559 session_reset_msg_t * reset_msg)
561 vcl_session_t *session;
564 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
565 session = vcl_session_get (wrk, sid);
568 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
569 return VCL_INVALID_SESSION_INDEX;
572 /* Caught a reset before actually accepting the session */
573 if (session->session_state == VCL_STATE_LISTEN)
576 if (!vcl_flag_accepted_session (session, reset_msg->handle,
577 VCL_ACCEPTED_F_RESET))
578 VDBG (0, "session was not accepted!");
579 return VCL_INVALID_SESSION_INDEX;
582 if (session->session_state != VCL_STATE_CLOSED)
583 session->session_state = VCL_STATE_DISCONNECT;
584 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
589 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
591 vcl_session_t *session;
592 u32 sid = mp->context;
594 session = vcl_session_get (wrk, sid);
597 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
598 format_session_error, mp->retval);
601 session->session_state = VCL_STATE_DETACHED;
602 session->vpp_handle = mp->handle;
607 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
609 return VCL_INVALID_SESSION_INDEX;
613 session->vpp_handle = mp->handle;
614 session->transport.is_ip4 = mp->lcl_is_ip4;
615 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
616 sizeof (ip46_address_t));
617 session->transport.lcl_port = mp->lcl_port;
618 vcl_session_table_add_listener (wrk, mp->handle, sid);
619 session->session_state = VCL_STATE_LISTEN;
621 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
622 vec_validate (wrk->vpp_event_queues, 0);
623 wrk->vpp_event_queues[0] = session->vpp_evt_q;
625 if (vcl_session_is_cl (session))
627 svm_fifo_t *rx_fifo, *tx_fifo;
628 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
629 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
630 rx_fifo->client_session_index = sid;
631 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
632 tx_fifo->client_session_index = sid;
633 session->rx_fifo = rx_fifo;
634 session->tx_fifo = tx_fifo;
637 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
642 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
644 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
647 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
650 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
653 if (s->session_state != VCL_STATE_DISCONNECT)
655 /* Connected udp listener */
656 if (s->session_type == VPPCOM_PROTO_UDP
657 && s->session_state == VCL_STATE_CLOSED)
660 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
665 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
666 s->session_index, mp->handle, format_session_error, mp->retval);
668 if (mp->context != wrk->wrk_index)
669 VDBG (0, "wrong context");
671 vcl_session_table_del_vpp_handle (wrk, mp->handle);
672 vcl_session_free (wrk, s);
676 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
678 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
681 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
684 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
688 s->vpp_thread_index = mp->vpp_thread_index;
689 s->vpp_handle = mp->new_handle;
690 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
692 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
693 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
695 vcl_session_table_del_vpp_handle (wrk, mp->handle);
696 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
698 /* Generate new tx event if we have outstanding data */
699 if (svm_fifo_has_event (s->tx_fifo))
700 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
701 SESSION_IO_EVT_TX, SVM_Q_WAIT);
703 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
704 s->vpp_thread_index, mp->new_handle);
707 static vcl_session_t *
708 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
710 vcl_session_msg_t *vcl_msg;
711 vcl_session_t *session;
713 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
714 if (PREDICT_FALSE (session != 0))
715 VWRN ("session overlap handle %lu state %u!", msg->handle,
716 session->session_state);
718 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
721 VERR ("couldn't find listen session: listener handle %llx",
722 msg->listener_handle);
726 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
728 vcl_msg->accepted_msg = *msg;
729 /* Session handle points to listener until fully accepted by app */
730 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
735 static vcl_session_t *
736 vcl_session_disconnected_handler (vcl_worker_t * wrk,
737 session_disconnected_msg_t * msg)
739 vcl_session_t *session;
741 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
744 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
748 /* Late disconnect notification on a session that has been closed */
749 if (session->session_state == VCL_STATE_CLOSED)
752 /* Caught a disconnect before actually accepting the session */
753 if (session->session_state == VCL_STATE_LISTEN)
755 if (!vcl_flag_accepted_session (session, msg->handle,
756 VCL_ACCEPTED_F_CLOSED))
757 VDBG (0, "session was not accepted!");
761 /* If not already reset change state */
762 if (session->session_state != VCL_STATE_DISCONNECT)
763 session->session_state = VCL_STATE_VPP_CLOSING;
769 vppcom_session_disconnect (u32 session_handle)
771 vcl_worker_t *wrk = vcl_worker_get_current ();
772 svm_msg_q_t *vpp_evt_q;
773 vcl_session_t *session, *listen_session;
774 vcl_session_state_t state;
777 session = vcl_session_get_w_handle (wrk, session_handle);
779 return VPPCOM_EBADFD;
781 vpp_handle = session->vpp_handle;
782 state = session->session_state;
784 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
785 vpp_handle, state, vppcom_session_state_str (state));
787 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
789 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
790 return VPPCOM_EBADFD;
793 if (state == VCL_STATE_VPP_CLOSING)
795 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
796 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->api_client_handle,
798 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
799 session->session_index, vpp_handle);
803 /* Session doesn't have an event queue yet. Probably a non-blocking
804 * connect. Wait for the reply */
805 if (PREDICT_FALSE (!session->vpp_evt_q))
808 VDBG (1, "session %u [0x%llx]: sending disconnect...",
809 session->session_index, vpp_handle);
810 vcl_send_session_disconnect (wrk, session);
813 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
815 listen_session = vcl_session_get (wrk, session->listener_index);
816 listen_session->n_accepted_sessions--;
823 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
825 session_cleanup_msg_t *msg;
826 vcl_session_t *session;
828 msg = (session_cleanup_msg_t *) data;
829 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
832 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
836 if (msg->type == SESSION_CLEANUP_TRANSPORT)
838 /* Transport was cleaned up before we confirmed close. Probably the
839 * app is still waiting for some data that cannot be delivered.
840 * Confirm close to make sure everything is cleaned up.
841 * Move to undetermined state to ensure that the session is not
842 * removed before both vpp and the app cleanup.
843 * - If the app closes first, the session is moved to CLOSED state
844 * and the session cleanup notification from vpp removes the
846 * - If vpp cleans up the session first, the session is moved to
847 * DETACHED state lower and subsequently the close from the app
850 if (session->session_state == VCL_STATE_VPP_CLOSING)
852 vppcom_session_disconnect (vcl_session_handle (session));
853 session->session_state = VCL_STATE_UPDATED;
855 else if (session->session_state == VCL_STATE_DISCONNECT)
857 vcl_send_session_reset_reply (vcl_session_vpp_evt_q (wrk, session),
858 wrk->api_client_handle,
859 session->vpp_handle, 0);
860 session->session_state = VCL_STATE_UPDATED;
865 vcl_session_table_del_vpp_handle (wrk, msg->handle);
866 /* Should not happen. App did not close the connection so don't free it. */
867 if (session->session_state != VCL_STATE_CLOSED)
869 VDBG (0, "app did not close session %d", session->session_index);
870 session->session_state = VCL_STATE_DETACHED;
871 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
874 vcl_session_free (wrk, session);
878 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
880 session_req_worker_update_msg_t *msg;
883 msg = (session_req_worker_update_msg_t *) data;
884 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
888 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
892 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
894 session_worker_update_reply_msg_t *msg;
897 msg = (session_worker_update_reply_msg_t *) data;
898 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
901 VDBG (0, "unknown handle 0x%llx", msg->handle);
904 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
906 clib_warning ("segment for session %u is not mounted!",
913 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
914 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
915 s->rx_fifo->client_session_index = s->session_index;
916 s->tx_fifo->client_session_index = s->session_index;
917 s->rx_fifo->client_thread_index = wrk->wrk_index;
918 s->tx_fifo->client_thread_index = wrk->wrk_index;
920 s->session_state = VCL_STATE_UPDATED;
922 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
923 s->vpp_handle, wrk->wrk_index);
927 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
930 if (vcm->cfg.vpp_app_socket_api)
931 return vcl_sapi_recv_fds (wrk, fds, n_fds);
933 return vcl_bapi_recv_fds (wrk, fds, n_fds);
937 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
939 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
940 session_app_add_segment_msg_t *msg;
944 msg = (session_app_add_segment_msg_t *) data;
948 vcl_api_recv_fd (wrk, &fd, 1);
949 seg_type = SSVM_SEGMENT_MEMFD;
952 segment_handle = msg->segment_handle;
953 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
955 clib_warning ("invalid segment handle");
959 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
962 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
966 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
971 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
973 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
974 vcl_segment_detach (msg->segment_handle);
975 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
979 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
981 if (!vcm->wrk_rpc_fn)
984 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
988 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
990 session_disconnected_msg_t *disconnected_msg;
993 switch (e->event_type)
995 case SESSION_IO_EVT_RX:
996 case SESSION_IO_EVT_TX:
997 s = vcl_session_get (wrk, e->session_index);
998 if (!s || !vcl_session_is_open (s))
1000 vec_add1 (wrk->unhandled_evts_vector, *e);
1002 case SESSION_CTRL_EVT_ACCEPTED:
1003 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1005 case SESSION_CTRL_EVT_CONNECTED:
1006 vcl_session_connected_handler (wrk,
1007 (session_connected_msg_t *) e->data);
1009 case SESSION_CTRL_EVT_DISCONNECTED:
1010 disconnected_msg = (session_disconnected_msg_t *) e->data;
1011 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
1014 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1017 case SESSION_CTRL_EVT_RESET:
1018 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1020 case SESSION_CTRL_EVT_BOUND:
1021 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1023 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1024 vcl_session_unlisten_reply_handler (wrk, e->data);
1026 case SESSION_CTRL_EVT_MIGRATED:
1027 vcl_session_migrated_handler (wrk, e->data);
1029 case SESSION_CTRL_EVT_CLEANUP:
1030 vcl_session_cleanup_handler (wrk, e->data);
1032 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1033 vcl_session_req_worker_update_handler (wrk, e->data);
1035 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1036 vcl_session_worker_update_reply_handler (wrk, e->data);
1038 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1039 vcl_session_app_add_segment_handler (wrk, e->data);
1041 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1042 vcl_session_app_del_segment_handler (wrk, e->data);
1044 case SESSION_CTRL_EVT_APP_WRK_RPC:
1045 vcl_worker_rpc_handler (wrk, e->data);
1048 clib_warning ("unhandled %u", e->event_type);
1054 vppcom_wait_for_session_state_change (u32 session_index,
1055 vcl_session_state_t state,
1058 vcl_worker_t *wrk = vcl_worker_get_current ();
1059 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1060 vcl_session_t *volatile session;
1061 svm_msg_q_msg_t msg;
1066 session = vcl_session_get (wrk, session_index);
1067 if (PREDICT_FALSE (!session))
1069 return VPPCOM_EBADFD;
1071 if (session->session_state == state)
1075 if (session->session_state == VCL_STATE_DETACHED)
1077 return VPPCOM_ECONNREFUSED;
1080 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1085 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1086 vcl_handle_mq_event (wrk, e);
1087 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1089 while (clib_time_now (&wrk->clib_time) < timeout);
1091 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1092 vppcom_session_state_str (state));
1093 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1095 return VPPCOM_ETIMEDOUT;
1099 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1101 vcl_session_state_t state;
1105 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1108 vec_foreach (sip, wrk->pending_session_wrk_updates)
1110 s = vcl_session_get (wrk, *sip);
1111 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1112 state = s->session_state;
1113 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1115 s->session_state = state;
1117 vec_reset_length (wrk->pending_session_wrk_updates);
1121 vcl_flush_mq_events (void)
1123 vcl_worker_t *wrk = vcl_worker_get_current ();
1124 svm_msg_q_msg_t *msg;
1129 mq = wrk->app_event_queue;
1130 svm_msg_q_lock (mq);
1131 vcl_mq_dequeue_batch (wrk, mq, ~0);
1132 svm_msg_q_unlock (mq);
1134 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1136 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1137 e = svm_msg_q_msg_data (mq, msg);
1138 vcl_handle_mq_event (wrk, e);
1139 svm_msg_q_free_msg (mq, msg);
1141 vec_reset_length (wrk->mq_msg_vector);
1142 vcl_handle_pending_wrk_updates (wrk);
1146 vppcom_session_unbind (u32 session_handle)
1148 vcl_worker_t *wrk = vcl_worker_get_current ();
1149 session_accepted_msg_t *accepted_msg;
1150 vcl_session_t *session = 0;
1151 vcl_session_msg_t *evt;
1153 session = vcl_session_get_w_handle (wrk, session_handle);
1155 return VPPCOM_EBADFD;
1157 /* Flush pending accept events, if any */
1158 while (clib_fifo_elts (session->accept_evts_fifo))
1160 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1161 accepted_msg = &evt->accepted_msg;
1162 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1163 vcl_send_session_accepted_reply (session->vpp_evt_q,
1164 accepted_msg->context,
1165 session->vpp_handle, -1);
1167 clib_fifo_free (session->accept_evts_fifo);
1169 vcl_send_session_unlisten (wrk, session);
1171 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1172 session->vpp_handle);
1173 vcl_evt (VCL_EVT_UNBIND, session);
1175 session->vpp_handle = ~0;
1176 session->session_state = VCL_STATE_DISCONNECT;
1184 * Notify vpp of the disconnect and mark the worker as free. If we're the
1185 * last worker, do a full cleanup otherwise, since we're probably a forked
1186 * child, avoid syscalls as much as possible. We might've lost privileges.
1189 vppcom_app_exit (void)
1191 if (!pool_elts (vcm->workers))
1193 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1194 vcl_set_worker_index (~0);
1195 vcl_elog_stop (vcm);
1199 vcl_api_attach (void)
1201 if (vcm->cfg.vpp_app_socket_api)
1202 return vcl_sapi_attach ();
1204 return vcl_bapi_attach ();
1208 vcl_api_detach (vcl_worker_t * wrk)
1210 vcl_send_app_detach (wrk);
1212 if (vcm->cfg.vpp_app_socket_api)
1213 return vcl_sapi_detach (wrk);
1215 return vcl_bapi_disconnect_from_vpp ();
1219 * VPPCOM Public API functions
1222 vppcom_app_create (const char *app_name)
1224 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1229 VDBG (1, "already initialized");
1230 return VPPCOM_EEXIST;
1234 vppcom_cfg (&vcm->cfg);
1235 vcl_cfg = &vcm->cfg;
1237 vcm->main_cpu = pthread_self ();
1238 vcm->main_pid = getpid ();
1239 vcm->app_name = format (0, "%s", app_name);
1240 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1241 20 /* timeout in secs */ );
1242 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1243 clib_spinlock_init (&vcm->workers_lock);
1244 clib_rwlock_init (&vcm->segment_table_lock);
1245 atexit (vppcom_app_exit);
1246 vcl_elog_init (vcm);
1248 /* Allocate default worker */
1249 vcl_worker_alloc_and_init ();
1251 if ((rv = vcl_api_attach ()))
1254 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1255 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1261 vppcom_app_destroy (void)
1263 vcl_worker_t *wrk, *current_wrk;
1266 if (!pool_elts (vcm->workers))
1269 vcl_evt (VCL_EVT_DETACH, vcm);
1271 current_wrk = vcl_worker_get_current ();
1274 pool_foreach (wrk, vcm->workers, ({
1275 if (current_wrk != wrk)
1276 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1280 vcl_api_detach (current_wrk);
1281 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1283 vcl_elog_stop (vcm);
1286 * Free the heap and fix vcm
1288 heap = clib_mem_get_heap ();
1289 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1291 vcm = &_vppcom_main;
1296 vppcom_session_create (u8 proto, u8 is_nonblocking)
1298 vcl_worker_t *wrk = vcl_worker_get_current ();
1299 vcl_session_t *session;
1301 session = vcl_session_alloc (wrk);
1303 session->session_type = proto;
1304 session->session_state = VCL_STATE_CLOSED;
1305 session->vpp_handle = ~0;
1306 session->is_dgram = vcl_proto_is_dgram (proto);
1309 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1311 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1312 is_nonblocking, session_index);
1314 VDBG (0, "created session %u", session->session_index);
1316 return vcl_session_handle (session);
1320 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1321 vcl_session_handle_t sh, u8 do_disconnect)
1325 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1327 if (s->flags & VCL_SESSION_F_IS_VEP)
1329 u32 next_sh = s->vep.next_sh;
1330 while (next_sh != ~0)
1332 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1333 if (PREDICT_FALSE (rv < 0))
1334 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1335 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1336 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1337 next_sh = s->vep.next_sh;
1342 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1344 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1346 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1347 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1348 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1353 VDBG (1, "session %u [0x%llx] disconnect skipped",
1354 s->session_index, s->vpp_handle);
1358 if (s->session_state == VCL_STATE_LISTEN)
1360 rv = vppcom_session_unbind (sh);
1361 if (PREDICT_FALSE (rv < 0))
1362 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1363 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1364 vppcom_retval_str (rv));
1367 else if (vcl_session_is_ready (s)
1368 || (vcl_session_is_connectable_listener (wrk, s)))
1370 rv = vppcom_session_disconnect (sh);
1371 if (PREDICT_FALSE (rv < 0))
1372 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1373 " rv %d (%s)", s->session_index, s->vpp_handle,
1374 rv, vppcom_retval_str (rv));
1376 else if (s->session_state == VCL_STATE_DISCONNECT)
1378 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, s);
1379 vcl_send_session_reset_reply (mq, wrk->api_client_handle,
1382 else if (s->session_state == VCL_STATE_DETACHED)
1384 /* Should not happen. VPP cleaned up before app confirmed close */
1385 VDBG (0, "vpp freed session %d before close", s->session_index);
1389 s->session_state = VCL_STATE_CLOSED;
1391 /* Session is removed only after vpp confirms the disconnect */
1395 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1397 vcl_session_free (wrk, s);
1398 vcl_evt (VCL_EVT_CLOSE, s, rv);
1404 vppcom_session_close (uint32_t session_handle)
1406 vcl_worker_t *wrk = vcl_worker_get_current ();
1407 vcl_session_t *session;
1409 session = vcl_session_get_w_handle (wrk, session_handle);
1411 return VPPCOM_EBADFD;
1412 return vcl_session_cleanup (wrk, session, session_handle,
1413 1 /* do_disconnect */ );
1417 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1419 vcl_worker_t *wrk = vcl_worker_get_current ();
1420 vcl_session_t *session = 0;
1423 return VPPCOM_EINVAL;
1425 session = vcl_session_get_w_handle (wrk, session_handle);
1427 return VPPCOM_EBADFD;
1429 if (session->flags & VCL_SESSION_F_IS_VEP)
1431 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1432 session->session_index);
1433 return VPPCOM_EBADFD;
1436 session->transport.is_ip4 = ep->is_ip4;
1438 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1439 sizeof (ip4_address_t));
1441 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1442 sizeof (ip6_address_t));
1443 session->transport.lcl_port = ep->port;
1445 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1446 "proto %s", session->session_index, session_handle,
1447 session->transport.is_ip4 ? "IPv4" : "IPv6",
1448 format_ip46_address, &session->transport.lcl_ip,
1449 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1450 clib_net_to_host_u16 (session->transport.lcl_port),
1451 vppcom_proto_str (session->session_type));
1452 vcl_evt (VCL_EVT_BIND, session);
1454 if (session->session_type == VPPCOM_PROTO_UDP)
1455 vppcom_session_listen (session_handle, 10);
1461 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1463 vcl_worker_t *wrk = vcl_worker_get_current ();
1464 vcl_session_t *listen_session = 0;
1465 u64 listen_vpp_handle;
1468 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1469 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1470 return VPPCOM_EBADFD;
1472 if (q_len == 0 || q_len == ~0)
1473 q_len = vcm->cfg.listen_queue_size;
1475 listen_vpp_handle = listen_session->vpp_handle;
1476 if (listen_session->session_state == VCL_STATE_LISTEN)
1478 VDBG (0, "session %u [0x%llx]: already in listen state!",
1479 listen_sh, listen_vpp_handle);
1483 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1486 * Send listen request to vpp and wait for reply
1488 vcl_send_session_listen (wrk, listen_session);
1489 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1491 vcm->cfg.session_timeout);
1493 if (PREDICT_FALSE (rv))
1495 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1496 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1497 listen_sh, listen_session->vpp_handle, rv,
1498 vppcom_retval_str (rv));
1506 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1508 if (ls->flags & VCL_SESSION_F_IS_VEP)
1510 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1512 return VPPCOM_EBADFD;
1515 if ((ls->session_state != VCL_STATE_LISTEN)
1516 && (!vcl_session_is_connectable_listener (wrk, ls)))
1518 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1519 " (%s)", ls->vpp_handle, ls->session_state,
1520 vppcom_session_state_str (ls->session_state));
1521 return VPPCOM_EBADFD;
1527 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1529 if (!strcmp (proto_str, "TCP"))
1530 *proto = VPPCOM_PROTO_TCP;
1531 else if (!strcmp (proto_str, "tcp"))
1532 *proto = VPPCOM_PROTO_TCP;
1533 else if (!strcmp (proto_str, "UDP"))
1534 *proto = VPPCOM_PROTO_UDP;
1535 else if (!strcmp (proto_str, "udp"))
1536 *proto = VPPCOM_PROTO_UDP;
1537 else if (!strcmp (proto_str, "TLS"))
1538 *proto = VPPCOM_PROTO_TLS;
1539 else if (!strcmp (proto_str, "tls"))
1540 *proto = VPPCOM_PROTO_TLS;
1541 else if (!strcmp (proto_str, "QUIC"))
1542 *proto = VPPCOM_PROTO_QUIC;
1543 else if (!strcmp (proto_str, "quic"))
1544 *proto = VPPCOM_PROTO_QUIC;
1551 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1554 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1555 vcl_worker_t *wrk = vcl_worker_get_current ();
1556 session_accepted_msg_t accepted_msg;
1557 vcl_session_t *listen_session = 0;
1558 vcl_session_t *client_session = 0;
1559 vcl_session_msg_t *evt;
1560 svm_msg_q_msg_t msg;
1565 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1566 if (!listen_session)
1567 return VPPCOM_EBADFD;
1569 listen_session_index = listen_session->session_index;
1570 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1573 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1575 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1576 accept_flags = evt->flags;
1577 accepted_msg = evt->accepted_msg;
1581 is_nonblocking = vcl_session_has_attr (listen_session,
1582 VCL_SESS_ATTR_NONBLOCK);
1585 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1586 return VPPCOM_EAGAIN;
1588 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1589 return VPPCOM_EAGAIN;
1591 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1592 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1594 vcl_handle_mq_event (wrk, e);
1595 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1598 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1599 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1605 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1606 listen_session_index);
1607 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1608 return VPPCOM_ECONNABORTED;
1610 listen_session = vcl_session_get (wrk, listen_session_index);
1611 client_session = vcl_session_get (wrk, client_session_index);
1613 if (flags & O_NONBLOCK)
1614 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1616 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1617 " flags %d, is_nonblocking %u", listen_session->session_index,
1618 listen_session->vpp_handle, client_session_index,
1619 client_session->vpp_handle, flags,
1620 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1624 ep->is_ip4 = client_session->transport.is_ip4;
1625 ep->port = client_session->transport.rmt_port;
1626 if (client_session->transport.is_ip4)
1627 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1628 sizeof (ip4_address_t));
1630 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1631 sizeof (ip6_address_t));
1634 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1635 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1636 client_session_index, client_session->vpp_handle,
1637 format_ip46_address, &client_session->transport.rmt_ip,
1638 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1639 clib_net_to_host_u16 (client_session->transport.rmt_port),
1640 format_ip46_address, &client_session->transport.lcl_ip,
1641 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1642 clib_net_to_host_u16 (client_session->transport.lcl_port));
1643 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1644 client_session_index);
1647 * Session might have been closed already
1651 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1652 client_session->session_state = VCL_STATE_VPP_CLOSING;
1653 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1654 client_session->session_state = VCL_STATE_DISCONNECT;
1656 return vcl_session_handle (client_session);
1660 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1662 vcl_worker_t *wrk = vcl_worker_get_current ();
1663 vcl_session_t *session = 0;
1667 session = vcl_session_get_w_handle (wrk, session_handle);
1669 return VPPCOM_EBADFD;
1670 session_index = session->session_index;
1672 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1674 VDBG (0, "ERROR: cannot connect epoll session %u!",
1675 session->session_index);
1676 return VPPCOM_EBADFD;
1679 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1681 VDBG (0, "session handle %u [0x%llx]: session already "
1682 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1683 session_handle, session->vpp_handle,
1684 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1685 &session->transport.rmt_ip, session->transport.is_ip4 ?
1686 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1687 clib_net_to_host_u16 (session->transport.rmt_port),
1688 vppcom_proto_str (session->session_type), session->session_state,
1689 vppcom_session_state_str (session->session_state));
1693 /* Attempt to connect a connectionless listener */
1694 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1696 if (session->session_type != VPPCOM_PROTO_UDP)
1697 return VPPCOM_EINVAL;
1698 vcl_send_session_unlisten (wrk, session);
1699 session->session_state = VCL_STATE_CLOSED;
1702 session->transport.is_ip4 = server_ep->is_ip4;
1703 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1704 session->transport.rmt_port = server_ep->port;
1705 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1706 session->flags |= VCL_SESSION_F_CONNECTED;
1708 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1709 "port %d proto %s", session_handle,
1710 vppcom_session_state_str (session->session_state),
1711 session->transport.is_ip4 ? "IPv4" : "IPv6",
1712 format_ip46_address,
1713 &session->transport.rmt_ip, session->transport.is_ip4 ?
1714 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1715 clib_net_to_host_u16 (session->transport.rmt_port),
1716 vppcom_proto_str (session->session_type));
1718 vcl_send_session_connect (wrk, session);
1720 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1722 /* State set to STATE_UPDATED to ensure the session is not assumed
1723 * to be ready and to also allow the app to close it prior to vpp's
1724 * connected reply. */
1725 session->session_state = VCL_STATE_UPDATED;
1726 return VPPCOM_EINPROGRESS;
1730 * Wait for reply from vpp if blocking
1732 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1733 vcm->cfg.session_timeout);
1735 session = vcl_session_get (wrk, session_index);
1736 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1737 session->vpp_handle, rv ? "failed" : "succeeded");
1743 vppcom_session_stream_connect (uint32_t session_handle,
1744 uint32_t parent_session_handle)
1746 vcl_worker_t *wrk = vcl_worker_get_current ();
1747 vcl_session_t *session, *parent_session;
1748 u32 session_index, parent_session_index;
1751 session = vcl_session_get_w_handle (wrk, session_handle);
1753 return VPPCOM_EBADFD;
1754 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1755 if (!parent_session)
1756 return VPPCOM_EBADFD;
1758 session_index = session->session_index;
1759 parent_session_index = parent_session->session_index;
1760 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1762 VDBG (0, "ERROR: cannot connect epoll session %u!",
1763 session->session_index);
1764 return VPPCOM_EBADFD;
1767 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1769 VDBG (0, "session handle %u [0x%llx]: session already "
1770 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1771 session_handle, session->vpp_handle,
1772 parent_session_handle, parent_session->vpp_handle,
1773 vppcom_proto_str (session->session_type), session->session_state,
1774 vppcom_session_state_str (session->session_state));
1778 /* Connect to quic session specifics */
1779 session->transport.is_ip4 = parent_session->transport.is_ip4;
1780 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1781 session->transport.rmt_port = 0;
1782 session->parent_handle = parent_session->vpp_handle;
1784 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1785 session_handle, parent_session_handle, parent_session->vpp_handle);
1788 * Send connect request and wait for reply from vpp
1790 vcl_send_session_connect (wrk, session);
1791 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1792 vcm->cfg.session_timeout);
1794 session->listener_index = parent_session_index;
1795 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1797 parent_session->n_accepted_sessions++;
1799 session = vcl_session_get (wrk, session_index);
1800 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1801 session->vpp_handle, rv ? "failed" : "succeeded");
1807 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1809 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1813 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1816 vcl_worker_t *wrk = vcl_worker_get_current ();
1817 int rv, n_read = 0, is_nonblocking;
1818 vcl_session_t *s = 0;
1819 svm_fifo_t *rx_fifo;
1820 svm_msg_q_msg_t msg;
1825 if (PREDICT_FALSE (!buf))
1826 return VPPCOM_EINVAL;
1828 s = vcl_session_get_w_handle (wrk, session_handle);
1829 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1830 return VPPCOM_EBADFD;
1832 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1834 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1835 s->session_index, s->vpp_handle, s->session_state,
1836 vppcom_session_state_str (s->session_state));
1837 return vcl_session_closed_error (s);
1840 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1841 is_ct = vcl_session_is_ct (s);
1842 mq = wrk->app_event_queue;
1843 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1844 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1846 if (svm_fifo_is_empty_cons (rx_fifo))
1850 if (vcl_session_is_closing (s))
1851 return vcl_session_closing_error (s);
1852 svm_fifo_unset_event (s->rx_fifo);
1853 return VPPCOM_EWOULDBLOCK;
1855 while (svm_fifo_is_empty_cons (rx_fifo))
1857 if (vcl_session_is_closing (s))
1858 return vcl_session_closing_error (s);
1860 svm_fifo_unset_event (s->rx_fifo);
1861 svm_msg_q_lock (mq);
1862 if (svm_msg_q_is_empty (mq))
1863 svm_msg_q_wait (mq);
1865 svm_msg_q_sub_w_lock (mq, &msg);
1866 e = svm_msg_q_msg_data (mq, &msg);
1867 svm_msg_q_unlock (mq);
1868 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1869 vcl_handle_mq_event (wrk, e);
1870 svm_msg_q_free_msg (mq, &msg);
1877 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1879 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1884 if (svm_fifo_is_empty_cons (rx_fifo))
1886 svm_fifo_unset_event (s->rx_fifo);
1887 if (!svm_fifo_is_empty_cons (rx_fifo)
1888 && svm_fifo_set_event (s->rx_fifo) && is_nonblocking)
1890 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1891 e->event_type = SESSION_IO_EVT_RX;
1892 e->session_index = s->session_index;
1895 else if (PREDICT_FALSE (rv < n))
1897 /* More data enqueued while reading. Try to drain it
1898 * or fill the buffer */
1904 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1906 svm_fifo_clear_deq_ntf (rx_fifo);
1907 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1908 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1911 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1912 s->vpp_handle, n_read, rx_fifo);
1918 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1920 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1924 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1926 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1930 vppcom_session_read_segments (uint32_t session_handle,
1931 vppcom_data_segment_t * ds, uint32_t n_segments,
1934 vcl_worker_t *wrk = vcl_worker_get_current ();
1935 int n_read = 0, is_nonblocking;
1936 vcl_session_t *s = 0;
1937 svm_fifo_t *rx_fifo;
1938 svm_msg_q_msg_t msg;
1943 s = vcl_session_get_w_handle (wrk, session_handle);
1944 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1945 return VPPCOM_EBADFD;
1947 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1948 return vcl_session_closed_error (s);
1950 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1951 is_ct = vcl_session_is_ct (s);
1952 mq = wrk->app_event_queue;
1953 rx_fifo = s->rx_fifo;
1954 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1957 svm_fifo_unset_event (s->rx_fifo);
1959 if (svm_fifo_is_empty_cons (rx_fifo))
1963 svm_fifo_unset_event (rx_fifo);
1964 return VPPCOM_EWOULDBLOCK;
1966 while (svm_fifo_is_empty_cons (rx_fifo))
1968 if (vcl_session_is_closing (s))
1969 return vcl_session_closing_error (s);
1971 svm_fifo_unset_event (rx_fifo);
1972 svm_msg_q_lock (mq);
1973 if (svm_msg_q_is_empty (mq))
1974 svm_msg_q_wait (mq);
1976 svm_msg_q_sub_w_lock (mq, &msg);
1977 e = svm_msg_q_msg_data (mq, &msg);
1978 svm_msg_q_unlock (mq);
1979 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1980 vcl_handle_mq_event (wrk, e);
1981 svm_msg_q_free_msg (mq, &msg);
1985 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1986 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1988 return VPPCOM_EAGAIN;
1990 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1992 svm_fifo_unset_event (s->rx_fifo);
1993 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1994 && svm_fifo_set_event (s->rx_fifo)
1995 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1998 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1999 e->event_type = SESSION_IO_EVT_RX;
2000 e->session_index = s->session_index;
2004 s->rx_bytes_pending += n_read;
2009 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2011 vcl_worker_t *wrk = vcl_worker_get_current ();
2014 s = vcl_session_get_w_handle (wrk, session_handle);
2015 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2018 svm_fifo_dequeue_drop (s->rx_fifo, n_bytes);
2020 ASSERT (s->rx_bytes_pending < n_bytes);
2021 s->rx_bytes_pending -= n_bytes;
2025 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2027 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2031 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2033 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2035 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2041 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2042 size_t n, u8 is_flush, u8 is_dgram)
2044 int n_write, is_nonblocking;
2045 session_evt_type_t et;
2046 svm_msg_q_msg_t msg;
2047 svm_fifo_t *tx_fifo;
2052 if (PREDICT_FALSE (!buf || n == 0))
2053 return VPPCOM_EINVAL;
2055 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2057 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2058 " session!", s->session_index, s->vpp_handle);
2059 return VPPCOM_EBADFD;
2062 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2064 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2065 s->session_index, s->vpp_handle, s->session_state,
2066 vppcom_session_state_str (s->session_state));
2067 return vcl_session_closed_error (s);;
2070 is_ct = vcl_session_is_ct (s);
2071 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2072 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2074 mq = wrk->app_event_queue;
2075 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2079 return VPPCOM_EWOULDBLOCK;
2081 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2083 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2084 if (vcl_session_is_closing (s))
2085 return vcl_session_closing_error (s);
2086 svm_msg_q_lock (mq);
2087 if (svm_msg_q_is_empty (mq))
2088 svm_msg_q_wait (mq);
2090 svm_msg_q_sub_w_lock (mq, &msg);
2091 e = svm_msg_q_msg_data (mq, &msg);
2092 svm_msg_q_unlock (mq);
2094 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2095 vcl_handle_mq_event (wrk, e);
2096 svm_msg_q_free_msg (mq, &msg);
2100 et = SESSION_IO_EVT_TX;
2101 if (is_flush && !is_ct)
2102 et = SESSION_IO_EVT_TX_FLUSH;
2105 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2106 s->vpp_evt_q, buf, n, et,
2107 0 /* do_evt */ , SVM_Q_WAIT);
2109 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2110 0 /* do_evt */ , SVM_Q_WAIT);
2112 if (svm_fifo_set_event (s->tx_fifo))
2113 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2116 /* The underlying fifo segment can run out of memory */
2117 if (PREDICT_FALSE (n_write < 0))
2118 return VPPCOM_EAGAIN;
2120 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2121 s->vpp_handle, n_write);
2127 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2129 vcl_worker_t *wrk = vcl_worker_get_current ();
2132 s = vcl_session_get_w_handle (wrk, session_handle);
2133 if (PREDICT_FALSE (!s))
2134 return VPPCOM_EBADFD;
2136 return vppcom_session_write_inline (wrk, s, buf, n,
2137 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2141 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2143 vcl_worker_t *wrk = vcl_worker_get_current ();
2146 s = vcl_session_get_w_handle (wrk, session_handle);
2147 if (PREDICT_FALSE (!s))
2148 return VPPCOM_EBADFD;
2150 return vppcom_session_write_inline (wrk, s, buf, n,
2151 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2154 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2155 if (PREDICT_FALSE (!_s->rx_fifo)) \
2157 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2159 if (!vcl_session_is_ct (_s)) \
2161 svm_fifo_unset_event (_s->rx_fifo); \
2162 if (svm_fifo_is_empty (_s->rx_fifo)) \
2165 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2167 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2168 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2174 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2175 unsigned long n_bits, unsigned long *read_map,
2176 unsigned long *write_map,
2177 unsigned long *except_map, u32 * bits_set)
2179 session_disconnected_msg_t *disconnected_msg;
2180 session_connected_msg_t *connected_msg;
2181 vcl_session_t *session;
2184 switch (e->event_type)
2186 case SESSION_IO_EVT_RX:
2187 sid = e->session_index;
2188 session = vcl_session_get (wrk, sid);
2189 if (!session || !vcl_session_is_open (session))
2191 vcl_fifo_rx_evt_valid_or_break (session);
2192 if (sid < n_bits && read_map)
2194 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2198 case SESSION_IO_EVT_TX:
2199 sid = e->session_index;
2200 session = vcl_session_get (wrk, sid);
2201 if (!session || !vcl_session_is_open (session))
2203 if (sid < n_bits && write_map)
2205 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2209 case SESSION_CTRL_EVT_ACCEPTED:
2210 session = vcl_session_accepted (wrk,
2211 (session_accepted_msg_t *) e->data);
2214 sid = session->session_index;
2215 if (sid < n_bits && read_map)
2217 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2221 case SESSION_CTRL_EVT_CONNECTED:
2222 connected_msg = (session_connected_msg_t *) e->data;
2223 sid = vcl_session_connected_handler (wrk, connected_msg);
2224 if (sid == VCL_INVALID_SESSION_INDEX)
2226 if (sid < n_bits && write_map)
2228 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2232 case SESSION_CTRL_EVT_DISCONNECTED:
2233 disconnected_msg = (session_disconnected_msg_t *) e->data;
2234 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2237 sid = session->session_index;
2238 if (sid < n_bits && except_map)
2240 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2244 case SESSION_CTRL_EVT_RESET:
2245 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2246 if (sid < n_bits && except_map)
2248 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2252 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2253 vcl_session_unlisten_reply_handler (wrk, e->data);
2255 case SESSION_CTRL_EVT_MIGRATED:
2256 vcl_session_migrated_handler (wrk, e->data);
2258 case SESSION_CTRL_EVT_CLEANUP:
2259 vcl_session_cleanup_handler (wrk, e->data);
2261 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2262 vcl_session_worker_update_reply_handler (wrk, e->data);
2264 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2265 vcl_session_req_worker_update_handler (wrk, e->data);
2267 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2268 vcl_session_app_add_segment_handler (wrk, e->data);
2270 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2271 vcl_session_app_del_segment_handler (wrk, e->data);
2273 case SESSION_CTRL_EVT_APP_WRK_RPC:
2274 vcl_worker_rpc_handler (wrk, e->data);
2277 clib_warning ("unhandled: %u", e->event_type);
2283 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2284 unsigned long n_bits, unsigned long *read_map,
2285 unsigned long *write_map, unsigned long *except_map,
2286 double time_to_wait, u32 * bits_set)
2288 svm_msg_q_msg_t *msg;
2292 svm_msg_q_lock (mq);
2293 if (svm_msg_q_is_empty (mq))
2297 svm_msg_q_unlock (mq);
2303 svm_msg_q_unlock (mq);
2306 else if (time_to_wait < 0)
2308 svm_msg_q_wait (mq);
2312 if (svm_msg_q_timedwait (mq, time_to_wait))
2314 svm_msg_q_unlock (mq);
2319 vcl_mq_dequeue_batch (wrk, mq, ~0);
2320 svm_msg_q_unlock (mq);
2322 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2324 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2325 e = svm_msg_q_msg_data (mq, msg);
2326 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2327 except_map, bits_set);
2328 svm_msg_q_free_msg (mq, msg);
2330 vec_reset_length (wrk->mq_msg_vector);
2331 vcl_handle_pending_wrk_updates (wrk);
2336 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2337 vcl_si_set * read_map, vcl_si_set * write_map,
2338 vcl_si_set * except_map, double time_to_wait,
2341 double wait = 0, start = 0;
2345 wait = time_to_wait;
2346 start = clib_time_now (&wrk->clib_time);
2351 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2352 write_map, except_map, wait, bits_set);
2358 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2366 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2367 vcl_si_set * read_map, vcl_si_set * write_map,
2368 vcl_si_set * except_map, double time_to_wait,
2371 vcl_mq_evt_conn_t *mqc;
2372 int __clib_unused n_read;
2376 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2377 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2378 vec_len (wrk->mq_events), time_to_wait);
2379 for (i = 0; i < n_mq_evts; i++)
2381 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2382 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2383 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2384 except_map, 0, bits_set);
2387 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2391 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2392 vcl_si_set * except_map, double time_to_wait)
2394 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2395 vcl_worker_t *wrk = vcl_worker_get_current ();
2396 vcl_session_t *session = 0;
2399 if (n_bits && read_map)
2401 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2402 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2403 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2404 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2406 if (n_bits && write_map)
2408 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2409 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2410 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2411 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2413 if (n_bits && except_map)
2415 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2416 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2417 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2418 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2428 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2429 if (!(session = vcl_session_get (wrk, sid)))
2431 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2436 if (vcl_session_write_ready (session))
2438 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2442 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2449 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2450 if (!(session = vcl_session_get (wrk, sid)))
2452 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2457 if (vcl_session_read_ready (session))
2459 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2467 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2469 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2470 read_map, write_map, except_map, &bits_set);
2472 vec_reset_length (wrk->unhandled_evts_vector);
2474 if (vcm->cfg.use_mq_eventfd)
2475 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2476 time_to_wait, &bits_set);
2478 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2479 time_to_wait, &bits_set);
2485 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2487 vppcom_epoll_t *vep;
2488 u32 sh = vep_handle;
2491 if (VPPCOM_DEBUG <= 2)
2494 s = vcl_session_get_w_handle (wrk, vep_handle);
2495 if (PREDICT_FALSE (!s))
2497 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2500 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2502 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2506 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2509 " is_vep_session = %u\n"
2510 " next_sh = 0x%x (%u)\n"
2511 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2512 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2514 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2516 s = vcl_session_get_w_handle (wrk, sh);
2517 if (PREDICT_FALSE (!s))
2519 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2522 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2524 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2526 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2528 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2532 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2533 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2534 sh, s->vep.vep_sh, vep_handle);
2535 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2537 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2539 " next_sh = 0x%x (%u)\n"
2540 " prev_sh = 0x%x (%u)\n"
2541 " vep_sh = 0x%x (%u)\n"
2542 " ev.events = 0x%x\n"
2543 " ev.data.u64 = 0x%llx\n"
2546 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2547 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2548 vep->ev.data.u64, vep->et_mask);
2553 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2557 vppcom_epoll_create (void)
2559 vcl_worker_t *wrk = vcl_worker_get_current ();
2560 vcl_session_t *vep_session;
2562 vep_session = vcl_session_alloc (wrk);
2564 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2565 vep_session->vep.vep_sh = ~0;
2566 vep_session->vep.next_sh = ~0;
2567 vep_session->vep.prev_sh = ~0;
2568 vep_session->vpp_handle = ~0;
2570 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2571 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2573 return vcl_session_handle (vep_session);
2577 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2578 struct epoll_event *event)
2580 vcl_worker_t *wrk = vcl_worker_get_current ();
2581 vcl_session_t *vep_session;
2586 if (vep_handle == session_handle)
2588 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2589 return VPPCOM_EINVAL;
2592 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2593 if (PREDICT_FALSE (!vep_session))
2595 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2596 return VPPCOM_EBADFD;
2598 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2600 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2601 return VPPCOM_EINVAL;
2604 ASSERT (vep_session->vep.vep_sh == ~0);
2605 ASSERT (vep_session->vep.prev_sh == ~0);
2607 s = vcl_session_get_w_handle (wrk, session_handle);
2608 if (PREDICT_FALSE (!s))
2610 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2611 return VPPCOM_EBADFD;
2613 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2615 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2616 return VPPCOM_EINVAL;
2622 if (PREDICT_FALSE (!event))
2624 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2625 return VPPCOM_EINVAL;
2627 if (vep_session->vep.next_sh != ~0)
2629 vcl_session_t *next_session;
2630 next_session = vcl_session_get_w_handle (wrk,
2631 vep_session->vep.next_sh);
2632 if (PREDICT_FALSE (!next_session))
2634 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2635 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2636 return VPPCOM_EBADFD;
2638 ASSERT (next_session->vep.prev_sh == vep_handle);
2639 next_session->vep.prev_sh = session_handle;
2641 s->vep.next_sh = vep_session->vep.next_sh;
2642 s->vep.prev_sh = vep_handle;
2643 s->vep.vep_sh = vep_handle;
2644 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2646 s->flags &= ~VCL_SESSION_F_IS_VEP;
2647 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2648 vep_session->vep.next_sh = session_handle;
2650 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2651 if (txf && (event->events & EPOLLOUT))
2652 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2654 /* Generate EPOLLOUT if tx fifo not full */
2655 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2657 session_event_t e = { 0 };
2658 e.event_type = SESSION_IO_EVT_TX;
2659 e.session_index = s->session_index;
2660 vec_add1 (wrk->unhandled_evts_vector, e);
2662 /* Generate EPOLLIN if rx fifo has data */
2663 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2665 session_event_t e = { 0 };
2666 e.event_type = SESSION_IO_EVT_RX;
2667 e.session_index = s->session_index;
2668 vec_add1 (wrk->unhandled_evts_vector, e);
2670 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2671 vep_handle, session_handle, event->events, event->data.u64);
2672 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2676 if (PREDICT_FALSE (!event))
2678 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2682 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2684 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2688 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2690 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2691 session_handle, s->vep.vep_sh, vep_handle);
2696 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2697 if ((event->events & EPOLLOUT) &&
2698 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2700 session_event_t e = { 0 };
2701 e.event_type = SESSION_IO_EVT_TX;
2702 e.session_index = s->session_index;
2703 vec_add1 (wrk->unhandled_evts_vector, e);
2705 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2707 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2708 if (event->events & EPOLLOUT)
2709 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2711 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2712 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2713 vep_handle, session_handle, event->events, event->data.u64);
2717 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2719 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2723 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2725 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2726 session_handle, s->vep.vep_sh, vep_handle);
2731 if (s->vep.prev_sh == vep_handle)
2732 vep_session->vep.next_sh = s->vep.next_sh;
2735 vcl_session_t *prev_session;
2736 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2737 if (PREDICT_FALSE (!prev_session))
2739 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2740 s->vep.prev_sh, session_handle);
2741 return VPPCOM_EBADFD;
2743 ASSERT (prev_session->vep.next_sh == session_handle);
2744 prev_session->vep.next_sh = s->vep.next_sh;
2746 if (s->vep.next_sh != ~0)
2748 vcl_session_t *next_session;
2749 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2750 if (PREDICT_FALSE (!next_session))
2752 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2753 s->vep.next_sh, session_handle);
2754 return VPPCOM_EBADFD;
2756 ASSERT (next_session->vep.prev_sh == session_handle);
2757 next_session->vep.prev_sh = s->vep.prev_sh;
2760 memset (&s->vep, 0, sizeof (s->vep));
2761 s->vep.next_sh = ~0;
2762 s->vep.prev_sh = ~0;
2764 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2766 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2768 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2770 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2772 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2776 VDBG (0, "Invalid operation (%d)!", op);
2780 vep_verify_epoll_chain (wrk, vep_handle);
2787 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2788 struct epoll_event *events, u32 * num_ev)
2790 session_disconnected_msg_t *disconnected_msg;
2791 session_connected_msg_t *connected_msg;
2792 u32 sid = ~0, session_events;
2793 u64 session_evt_data = ~0;
2794 vcl_session_t *session;
2797 switch (e->event_type)
2799 case SESSION_IO_EVT_RX:
2800 sid = e->session_index;
2801 session = vcl_session_get (wrk, sid);
2802 if (vcl_session_is_closed (session))
2804 vcl_fifo_rx_evt_valid_or_break (session);
2805 session_events = session->vep.ev.events;
2806 if (!(EPOLLIN & session->vep.ev.events)
2807 || (session->flags & VCL_SESSION_F_HAS_RX_EVT))
2810 events[*num_ev].events |= EPOLLIN;
2811 session_evt_data = session->vep.ev.data.u64;
2812 session->flags |= VCL_SESSION_F_HAS_RX_EVT;
2814 case SESSION_IO_EVT_TX:
2815 sid = e->session_index;
2816 session = vcl_session_get (wrk, sid);
2817 if (vcl_session_is_closed (session))
2819 session_events = session->vep.ev.events;
2820 if (!(EPOLLOUT & session_events))
2823 events[*num_ev].events |= EPOLLOUT;
2824 session_evt_data = session->vep.ev.data.u64;
2825 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (session) ?
2826 session->ct_tx_fifo : session->tx_fifo);
2828 case SESSION_CTRL_EVT_ACCEPTED:
2829 session = vcl_session_accepted (wrk,
2830 (session_accepted_msg_t *) e->data);
2834 session_events = session->vep.ev.events;
2835 if (!(EPOLLIN & session_events))
2839 events[*num_ev].events |= EPOLLIN;
2840 session_evt_data = session->vep.ev.data.u64;
2842 case SESSION_CTRL_EVT_CONNECTED:
2843 connected_msg = (session_connected_msg_t *) e->data;
2844 sid = vcl_session_connected_handler (wrk, connected_msg);
2845 /* Generate EPOLLOUT because there's no connected event */
2846 session = vcl_session_get (wrk, sid);
2847 if (vcl_session_is_closed (session))
2849 session_events = session->vep.ev.events;
2850 if (!(EPOLLOUT & session_events))
2853 events[*num_ev].events |= EPOLLOUT;
2854 session_evt_data = session->vep.ev.data.u64;
2855 if (session->session_state == VCL_STATE_DETACHED)
2856 events[*num_ev].events |= EPOLLHUP;
2858 case SESSION_CTRL_EVT_DISCONNECTED:
2859 disconnected_msg = (session_disconnected_msg_t *) e->data;
2860 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2861 if (vcl_session_is_closed (session))
2863 session_events = session->vep.ev.events;
2865 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2866 session_evt_data = session->vep.ev.data.u64;
2868 case SESSION_CTRL_EVT_RESET:
2869 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2870 session = vcl_session_get (wrk, sid);
2871 if (vcl_session_is_closed (session))
2873 session_events = session->vep.ev.events;
2875 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2876 session_evt_data = session->vep.ev.data.u64;
2878 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2879 vcl_session_unlisten_reply_handler (wrk, e->data);
2881 case SESSION_CTRL_EVT_MIGRATED:
2882 vcl_session_migrated_handler (wrk, e->data);
2884 case SESSION_CTRL_EVT_CLEANUP:
2885 vcl_session_cleanup_handler (wrk, e->data);
2887 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2888 vcl_session_req_worker_update_handler (wrk, e->data);
2890 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2891 vcl_session_worker_update_reply_handler (wrk, e->data);
2893 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2894 vcl_session_app_add_segment_handler (wrk, e->data);
2896 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2897 vcl_session_app_del_segment_handler (wrk, e->data);
2899 case SESSION_CTRL_EVT_APP_WRK_RPC:
2900 vcl_worker_rpc_handler (wrk, e->data);
2903 VDBG (0, "unhandled: %u", e->event_type);
2909 events[*num_ev].data.u64 = session_evt_data;
2910 if (EPOLLONESHOT & session_events)
2912 session = vcl_session_get (wrk, sid);
2913 session->vep.ev.events = 0;
2920 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2921 struct epoll_event *events, u32 maxevents,
2922 double wait_for_time, u32 * num_ev)
2924 svm_msg_q_msg_t *msg;
2928 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2929 goto handle_dequeued;
2931 svm_msg_q_lock (mq);
2932 if (svm_msg_q_is_empty (mq))
2936 svm_msg_q_unlock (mq);
2939 else if (wait_for_time < 0)
2941 svm_msg_q_wait (mq);
2945 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2947 svm_msg_q_unlock (mq);
2952 ASSERT (maxevents > *num_ev);
2953 vcl_mq_dequeue_batch (wrk, mq, ~0);
2954 svm_msg_q_unlock (mq);
2957 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2959 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2960 e = svm_msg_q_msg_data (mq, msg);
2961 if (*num_ev < maxevents)
2962 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2964 vcl_handle_mq_event (wrk, e);
2965 svm_msg_q_free_msg (mq, msg);
2967 vec_reset_length (wrk->mq_msg_vector);
2968 vcl_handle_pending_wrk_updates (wrk);
2973 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2974 int maxevents, u32 n_evts, double wait_for_time)
2976 double wait = 0, start = 0, now;
2980 wait = wait_for_time;
2981 start = clib_time_now (&wrk->clib_time);
2986 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2993 now = clib_time_now (&wrk->clib_time);
2994 wait -= (now - start) * 1e3;
3003 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3004 int maxevents, u32 n_evts, double wait_for_time)
3006 vcl_mq_evt_conn_t *mqc;
3007 int __clib_unused n_read;
3011 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3013 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3014 vec_len (wrk->mq_events), wait_for_time);
3015 for (i = 0; i < n_mq_evts; i++)
3017 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3018 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3019 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3021 if (!n_evts && n_mq_evts > 0)
3024 return (int) n_evts;
3028 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3029 int maxevents, double wait_for_time)
3031 vcl_worker_t *wrk = vcl_worker_get_current ();
3032 vcl_session_t *vep_session;
3036 if (PREDICT_FALSE (maxevents <= 0))
3038 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3039 return VPPCOM_EINVAL;
3042 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3044 return VPPCOM_EBADFD;
3046 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3048 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3049 return VPPCOM_EINVAL;
3052 memset (events, 0, sizeof (*events) * maxevents);
3054 if (vec_len (wrk->unhandled_evts_vector))
3056 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3058 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3060 if (n_evts == maxevents)
3062 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3066 vec_reset_length (wrk->unhandled_evts_vector);
3069 if (vcm->cfg.use_mq_eventfd)
3070 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3073 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3078 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3079 void *buffer, uint32_t * buflen)
3081 vcl_worker_t *wrk = vcl_worker_get_current ();
3082 vcl_session_t *session;
3084 u32 *flags = buffer, tmp_flags = 0;
3085 vppcom_endpt_t *ep = buffer;
3087 session = vcl_session_get_w_handle (wrk, session_handle);
3089 return VPPCOM_EBADFD;
3093 case VPPCOM_ATTR_GET_NREAD:
3094 rv = vcl_session_read_ready (session);
3095 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3099 case VPPCOM_ATTR_GET_NWRITE:
3100 rv = vcl_session_write_ready (session);
3101 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3105 case VPPCOM_ATTR_GET_FLAGS:
3106 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3110 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3112 *buflen = sizeof (*flags);
3113 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3114 "is_nonblocking = %u", session_handle, *flags,
3115 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3121 case VPPCOM_ATTR_SET_FLAGS:
3122 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3124 if (*flags & O_NONBLOCK)
3125 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3127 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3129 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3130 " is_nonblocking = %u", session_handle, *flags,
3131 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3137 case VPPCOM_ATTR_GET_PEER_ADDR:
3138 if (PREDICT_TRUE (buffer && buflen &&
3139 (*buflen >= sizeof (*ep)) && ep->ip))
3141 ep->is_ip4 = session->transport.is_ip4;
3142 ep->port = session->transport.rmt_port;
3143 if (session->transport.is_ip4)
3144 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3145 sizeof (ip4_address_t));
3147 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3148 sizeof (ip6_address_t));
3149 *buflen = sizeof (*ep);
3150 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3151 "addr = %U, port %u", session_handle, ep->is_ip4,
3152 format_ip46_address, &session->transport.rmt_ip,
3153 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3154 clib_net_to_host_u16 (ep->port));
3160 case VPPCOM_ATTR_GET_LCL_ADDR:
3161 if (PREDICT_TRUE (buffer && buflen &&
3162 (*buflen >= sizeof (*ep)) && ep->ip))
3164 ep->is_ip4 = session->transport.is_ip4;
3165 ep->port = session->transport.lcl_port;
3166 if (session->transport.is_ip4)
3167 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3168 sizeof (ip4_address_t));
3170 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3171 sizeof (ip6_address_t));
3172 *buflen = sizeof (*ep);
3173 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3174 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3175 &session->transport.lcl_ip,
3176 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3177 clib_net_to_host_u16 (ep->port));
3183 case VPPCOM_ATTR_SET_LCL_ADDR:
3184 if (PREDICT_TRUE (buffer && buflen &&
3185 (*buflen >= sizeof (*ep)) && ep->ip))
3187 session->transport.is_ip4 = ep->is_ip4;
3188 session->transport.lcl_port = ep->port;
3189 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3190 *buflen = sizeof (*ep);
3191 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3192 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3193 &session->transport.lcl_ip,
3194 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3195 clib_net_to_host_u16 (ep->port));
3201 case VPPCOM_ATTR_GET_LIBC_EPFD:
3202 rv = session->libc_epfd;
3203 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3206 case VPPCOM_ATTR_SET_LIBC_EPFD:
3207 if (PREDICT_TRUE (buffer && buflen &&
3208 (*buflen == sizeof (session->libc_epfd))))
3210 session->libc_epfd = *(int *) buffer;
3211 *buflen = sizeof (session->libc_epfd);
3213 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3214 session->libc_epfd, *buflen);
3220 case VPPCOM_ATTR_GET_PROTOCOL:
3221 if (buffer && buflen && (*buflen >= sizeof (int)))
3223 *(int *) buffer = session->session_type;
3224 *buflen = sizeof (int);
3226 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3227 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3233 case VPPCOM_ATTR_GET_LISTEN:
3234 if (buffer && buflen && (*buflen >= sizeof (int)))
3236 *(int *) buffer = vcl_session_has_attr (session,
3237 VCL_SESS_ATTR_LISTEN);
3238 *buflen = sizeof (int);
3240 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3247 case VPPCOM_ATTR_GET_ERROR:
3248 if (buffer && buflen && (*buflen >= sizeof (int)))
3250 *(int *) buffer = 0;
3251 *buflen = sizeof (int);
3253 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3254 *(int *) buffer, *buflen);
3260 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3261 if (buffer && buflen && (*buflen >= sizeof (u32)))
3265 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3267 svm_fifo_size (session->tx_fifo) :
3268 vcm->cfg.tx_fifo_size);
3269 *buflen = sizeof (u32);
3271 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3272 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3279 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3280 if (buffer && buflen && (*buflen == sizeof (u32)))
3283 session->sndbuf_size = *(u32 *) buffer;
3284 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3285 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3292 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3293 if (buffer && buflen && (*buflen >= sizeof (u32)))
3297 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3299 svm_fifo_size (session->rx_fifo) :
3300 vcm->cfg.rx_fifo_size);
3301 *buflen = sizeof (u32);
3303 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3304 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3310 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3311 if (buffer && buflen && (*buflen == sizeof (u32)))
3314 session->rcvbuf_size = *(u32 *) buffer;
3315 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3316 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3323 case VPPCOM_ATTR_GET_REUSEADDR:
3324 if (buffer && buflen && (*buflen >= sizeof (int)))
3327 *(int *) buffer = vcl_session_has_attr (session,
3328 VCL_SESS_ATTR_REUSEADDR);
3329 *buflen = sizeof (int);
3331 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3332 *(int *) buffer, *buflen);
3338 case VPPCOM_ATTR_SET_REUSEADDR:
3339 if (buffer && buflen && (*buflen == sizeof (int)) &&
3340 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3343 if (*(int *) buffer)
3344 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3346 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3348 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3349 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3356 case VPPCOM_ATTR_GET_REUSEPORT:
3357 if (buffer && buflen && (*buflen >= sizeof (int)))
3360 *(int *) buffer = vcl_session_has_attr (session,
3361 VCL_SESS_ATTR_REUSEPORT);
3362 *buflen = sizeof (int);
3364 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3365 *(int *) buffer, *buflen);
3371 case VPPCOM_ATTR_SET_REUSEPORT:
3372 if (buffer && buflen && (*buflen == sizeof (int)) &&
3373 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3376 if (*(int *) buffer)
3377 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3379 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3381 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3382 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3389 case VPPCOM_ATTR_GET_BROADCAST:
3390 if (buffer && buflen && (*buflen >= sizeof (int)))
3393 *(int *) buffer = vcl_session_has_attr (session,
3394 VCL_SESS_ATTR_BROADCAST);
3395 *buflen = sizeof (int);
3397 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3398 *(int *) buffer, *buflen);
3404 case VPPCOM_ATTR_SET_BROADCAST:
3405 if (buffer && buflen && (*buflen == sizeof (int)))
3408 if (*(int *) buffer)
3409 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3411 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3413 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3414 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3421 case VPPCOM_ATTR_GET_V6ONLY:
3422 if (buffer && buflen && (*buflen >= sizeof (int)))
3425 *(int *) buffer = vcl_session_has_attr (session,
3426 VCL_SESS_ATTR_V6ONLY);
3427 *buflen = sizeof (int);
3429 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3430 *(int *) buffer, *buflen);
3436 case VPPCOM_ATTR_SET_V6ONLY:
3437 if (buffer && buflen && (*buflen == sizeof (int)))
3440 if (*(int *) buffer)
3441 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3443 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3445 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3446 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3453 case VPPCOM_ATTR_GET_KEEPALIVE:
3454 if (buffer && buflen && (*buflen >= sizeof (int)))
3457 *(int *) buffer = vcl_session_has_attr (session,
3458 VCL_SESS_ATTR_KEEPALIVE);
3459 *buflen = sizeof (int);
3461 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3462 *(int *) buffer, *buflen);
3468 case VPPCOM_ATTR_SET_KEEPALIVE:
3469 if (buffer && buflen && (*buflen == sizeof (int)))
3472 if (*(int *) buffer)
3473 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3475 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3477 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3478 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3485 case VPPCOM_ATTR_GET_TCP_NODELAY:
3486 if (buffer && buflen && (*buflen >= sizeof (int)))
3489 *(int *) buffer = vcl_session_has_attr (session,
3490 VCL_SESS_ATTR_TCP_NODELAY);
3491 *buflen = sizeof (int);
3493 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3494 *(int *) buffer, *buflen);
3500 case VPPCOM_ATTR_SET_TCP_NODELAY:
3501 if (buffer && buflen && (*buflen == sizeof (int)))
3504 if (*(int *) buffer)
3505 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3507 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3509 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3510 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3517 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3518 if (buffer && buflen && (*buflen >= sizeof (int)))
3521 *(int *) buffer = vcl_session_has_attr (session,
3522 VCL_SESS_ATTR_TCP_KEEPIDLE);
3523 *buflen = sizeof (int);
3525 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3526 *(int *) buffer, *buflen);
3532 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3533 if (buffer && buflen && (*buflen == sizeof (int)))
3536 if (*(int *) buffer)
3537 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3539 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3541 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3542 vcl_session_has_attr (session,
3543 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3549 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3550 if (buffer && buflen && (*buflen >= sizeof (int)))
3553 *(int *) buffer = vcl_session_has_attr (session,
3554 VCL_SESS_ATTR_TCP_KEEPINTVL);
3555 *buflen = sizeof (int);
3557 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3558 *(int *) buffer, *buflen);
3564 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3565 if (buffer && buflen && (*buflen == sizeof (int)))
3568 if (*(int *) buffer)
3569 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3571 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3573 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3574 vcl_session_has_attr (session,
3575 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3581 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3582 if (buffer && buflen && (*buflen >= sizeof (u32)))
3585 *(u32 *) buffer = session->user_mss;
3586 *buflen = sizeof (int);
3588 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3589 *(int *) buffer, *buflen);
3595 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3596 if (buffer && buflen && (*buflen == sizeof (u32)))
3599 session->user_mss = *(u32 *) buffer;
3601 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3602 session->user_mss, *buflen);
3608 case VPPCOM_ATTR_SET_SHUT:
3609 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3610 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3611 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3612 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3615 case VPPCOM_ATTR_GET_SHUT:
3616 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3618 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3621 *(int *) buffer = SHUT_RD;
3622 else if (tmp_flags == 2)
3623 *(int *) buffer = SHUT_WR;
3624 else if (tmp_flags == 3)
3625 *(int *) buffer = SHUT_RDWR;
3626 *buflen = sizeof (int);
3629 case VPPCOM_ATTR_SET_CONNECTED:
3630 session->flags |= VCL_SESSION_F_CONNECTED;
3642 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3643 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3645 vcl_worker_t *wrk = vcl_worker_get_current ();
3646 vcl_session_t *session;
3650 rv = vppcom_session_read (session_handle, buffer, buflen);
3651 else if (flags & MSG_PEEK)
3652 rv = vppcom_session_peek (session_handle, buffer, buflen);
3655 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3656 return VPPCOM_EAFNOSUPPORT;
3661 session = vcl_session_get_w_handle (wrk, session_handle);
3662 if (session->transport.is_ip4)
3663 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3664 sizeof (ip4_address_t));
3666 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3667 sizeof (ip6_address_t));
3668 ep->is_ip4 = session->transport.is_ip4;
3669 ep->port = session->transport.rmt_port;
3676 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3677 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3679 vcl_worker_t *wrk = vcl_worker_get_current ();
3682 s = vcl_session_get_w_handle (wrk, session_handle);
3684 return VPPCOM_EBADFD;
3687 return VPPCOM_EINVAL;
3691 if (!vcl_session_is_cl (s))
3692 return VPPCOM_EINVAL;
3694 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3695 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3697 u32 session_index = s->session_index;
3698 f64 timeout = vcm->cfg.session_timeout;
3701 vcl_send_session_connect (wrk, s);
3702 rv = vppcom_wait_for_session_state_change (session_index,
3707 s = vcl_session_get (wrk, session_index);
3710 s->transport.is_ip4 = ep->is_ip4;
3711 s->transport.rmt_port = ep->port;
3712 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3717 // TBD check the flags and do the right thing
3718 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3721 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3722 s->is_dgram ? 1 : 0));
3726 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3728 vcl_worker_t *wrk = vcl_worker_get_current ();
3729 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3730 u32 i, keep_trying = 1;
3731 svm_msg_q_msg_t msg;
3735 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3738 return VPPCOM_EFAULT;
3742 vcl_session_t *session;
3744 /* Dequeue all events and drop all unhandled io events */
3745 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3747 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3748 vcl_handle_mq_event (wrk, e);
3749 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3751 vec_reset_length (wrk->unhandled_evts_vector);
3753 for (i = 0; i < n_sids; i++)
3755 session = vcl_session_get (wrk, vp[i].sh);
3758 vp[i].revents = POLLHUP;
3765 if (POLLIN & vp[i].events)
3767 rv = vcl_session_read_ready (session);
3770 vp[i].revents |= POLLIN;
3777 case VPPCOM_ECONNRESET:
3778 vp[i].revents = POLLHUP;
3782 vp[i].revents = POLLERR;
3789 if (POLLOUT & vp[i].events)
3791 rv = vcl_session_write_ready (session);
3794 vp[i].revents |= POLLOUT;
3801 case VPPCOM_ECONNRESET:
3802 vp[i].revents = POLLHUP;
3806 vp[i].revents = POLLERR;
3813 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3815 vp[i].revents = POLLNVAL;
3819 if (wait_for_time != -1)
3820 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3822 while ((num_ev == 0) && keep_trying);
3828 vppcom_mq_epoll_fd (void)
3830 vcl_worker_t *wrk = vcl_worker_get_current ();
3831 return wrk->mqs_epfd;
3835 vppcom_session_index (vcl_session_handle_t session_handle)
3837 return session_handle & 0xFFFFFF;
3841 vppcom_session_worker (vcl_session_handle_t session_handle)
3843 return session_handle >> 24;
3847 vppcom_worker_register (void)
3849 if (!vcl_worker_alloc_and_init ())
3850 return VPPCOM_EEXIST;
3852 if (vcl_worker_register_with_vpp ())
3853 return VPPCOM_EEXIST;
3859 vppcom_worker_unregister (void)
3861 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3862 vcl_set_worker_index (~0);
3866 vppcom_worker_index_set (int index)
3868 vcl_set_worker_index (index);
3872 vppcom_worker_index (void)
3874 return vcl_get_worker_index ();
3878 vppcom_worker_mqs_epfd (void)
3880 vcl_worker_t *wrk = vcl_worker_get_current ();
3881 if (!vcm->cfg.use_mq_eventfd)
3883 return wrk->mqs_epfd;
3887 vppcom_session_is_connectable_listener (uint32_t session_handle)
3889 vcl_session_t *session;
3890 vcl_worker_t *wrk = vcl_worker_get_current ();
3891 session = vcl_session_get_w_handle (wrk, session_handle);
3893 return VPPCOM_EBADFD;
3894 return vcl_session_is_connectable_listener (wrk, session);
3898 vppcom_session_listener (uint32_t session_handle)
3900 vcl_worker_t *wrk = vcl_worker_get_current ();
3901 vcl_session_t *listen_session, *session;
3902 session = vcl_session_get_w_handle (wrk, session_handle);
3904 return VPPCOM_EBADFD;
3905 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3906 return VPPCOM_EBADFD;
3907 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3908 if (!listen_session)
3909 return VPPCOM_EBADFD;
3910 return vcl_session_handle (listen_session);
3914 vppcom_session_n_accepted (uint32_t session_handle)
3916 vcl_worker_t *wrk = vcl_worker_get_current ();
3917 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3919 return VPPCOM_EBADFD;
3920 return session->n_accepted_sessions;
3924 vppcom_proto_str (vppcom_proto_t proto)
3926 char const *proto_str;
3930 case VPPCOM_PROTO_TCP:
3933 case VPPCOM_PROTO_UDP:
3936 case VPPCOM_PROTO_TLS:
3939 case VPPCOM_PROTO_QUIC:
3943 proto_str = "UNKNOWN";
3950 vppcom_retval_str (int retval)
3961 st = "VPPCOM_EAGAIN";
3965 st = "VPPCOM_EFAULT";
3969 st = "VPPCOM_ENOMEM";
3973 st = "VPPCOM_EINVAL";
3977 st = "VPPCOM_EBADFD";
3980 case VPPCOM_EAFNOSUPPORT:
3981 st = "VPPCOM_EAFNOSUPPORT";
3984 case VPPCOM_ECONNABORTED:
3985 st = "VPPCOM_ECONNABORTED";
3988 case VPPCOM_ECONNRESET:
3989 st = "VPPCOM_ECONNRESET";
3992 case VPPCOM_ENOTCONN:
3993 st = "VPPCOM_ENOTCONN";
3996 case VPPCOM_ECONNREFUSED:
3997 st = "VPPCOM_ECONNREFUSED";
4000 case VPPCOM_ETIMEDOUT:
4001 st = "VPPCOM_ETIMEDOUT";
4005 st = "UNKNOWN_STATE";
4013 * fd.io coding-style-patch-verification: ON
4016 * eval: (c-set-style "gnu")