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 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
771 session_cleanup_msg_t *msg;
772 vcl_session_t *session;
774 msg = (session_cleanup_msg_t *) data;
775 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
778 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
782 if (msg->type == SESSION_CLEANUP_TRANSPORT)
784 /* Transport was cleaned up before we confirmed close. Probably the
785 * app is still waiting for some data that cannot be delivered.
786 * Confirm close to make sure everything is cleaned up */
787 if (session->session_state == VCL_STATE_VPP_CLOSING)
788 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
789 1 /* do_disconnect */ );
793 vcl_session_table_del_vpp_handle (wrk, msg->handle);
794 /* Should not happen. App did not close the connection so don't free it. */
795 if (session->session_state != VCL_STATE_CLOSED)
797 VDBG (0, "app did not close session %d", session->session_index);
798 session->session_state = VCL_STATE_DETACHED;
799 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
802 vcl_session_free (wrk, session);
806 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
808 session_req_worker_update_msg_t *msg;
811 msg = (session_req_worker_update_msg_t *) data;
812 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
816 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
820 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
822 session_worker_update_reply_msg_t *msg;
825 msg = (session_worker_update_reply_msg_t *) data;
826 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
829 VDBG (0, "unknown handle 0x%llx", msg->handle);
832 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
834 clib_warning ("segment for session %u is not mounted!",
841 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
842 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
843 s->rx_fifo->client_session_index = s->session_index;
844 s->tx_fifo->client_session_index = s->session_index;
845 s->rx_fifo->client_thread_index = wrk->wrk_index;
846 s->tx_fifo->client_thread_index = wrk->wrk_index;
848 s->session_state = VCL_STATE_UPDATED;
850 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
851 s->vpp_handle, wrk->wrk_index);
855 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
858 if (vcm->cfg.vpp_app_socket_api)
859 return vcl_sapi_recv_fds (wrk, fds, n_fds);
861 return vcl_bapi_recv_fds (wrk, fds, n_fds);
865 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
867 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
868 session_app_add_segment_msg_t *msg;
872 msg = (session_app_add_segment_msg_t *) data;
876 vcl_api_recv_fd (wrk, &fd, 1);
877 seg_type = SSVM_SEGMENT_MEMFD;
880 segment_handle = msg->segment_handle;
881 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
883 clib_warning ("invalid segment handle");
887 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
890 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
894 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
899 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
901 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
902 vcl_segment_detach (msg->segment_handle);
903 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
907 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
909 if (!vcm->wrk_rpc_fn)
912 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
916 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
918 session_disconnected_msg_t *disconnected_msg;
921 switch (e->event_type)
923 case SESSION_IO_EVT_RX:
924 case SESSION_IO_EVT_TX:
925 s = vcl_session_get (wrk, e->session_index);
926 if (!s || !vcl_session_is_open (s))
928 vec_add1 (wrk->unhandled_evts_vector, *e);
930 case SESSION_CTRL_EVT_ACCEPTED:
931 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
933 case SESSION_CTRL_EVT_CONNECTED:
934 vcl_session_connected_handler (wrk,
935 (session_connected_msg_t *) e->data);
937 case SESSION_CTRL_EVT_DISCONNECTED:
938 disconnected_msg = (session_disconnected_msg_t *) e->data;
939 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
942 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
945 case SESSION_CTRL_EVT_RESET:
946 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
948 case SESSION_CTRL_EVT_BOUND:
949 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
951 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
952 vcl_session_unlisten_reply_handler (wrk, e->data);
954 case SESSION_CTRL_EVT_MIGRATED:
955 vcl_session_migrated_handler (wrk, e->data);
957 case SESSION_CTRL_EVT_CLEANUP:
958 vcl_session_cleanup_handler (wrk, e->data);
960 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
961 vcl_session_req_worker_update_handler (wrk, e->data);
963 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
964 vcl_session_worker_update_reply_handler (wrk, e->data);
966 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
967 vcl_session_app_add_segment_handler (wrk, e->data);
969 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
970 vcl_session_app_del_segment_handler (wrk, e->data);
972 case SESSION_CTRL_EVT_APP_WRK_RPC:
973 vcl_worker_rpc_handler (wrk, e->data);
976 clib_warning ("unhandled %u", e->event_type);
982 vppcom_wait_for_session_state_change (u32 session_index,
983 vcl_session_state_t state,
986 vcl_worker_t *wrk = vcl_worker_get_current ();
987 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
988 vcl_session_t *volatile session;
994 session = vcl_session_get (wrk, session_index);
995 if (PREDICT_FALSE (!session))
997 return VPPCOM_EBADFD;
999 if (session->session_state == state)
1003 if (session->session_state == VCL_STATE_DETACHED)
1005 return VPPCOM_ECONNREFUSED;
1008 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1013 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1014 vcl_handle_mq_event (wrk, e);
1015 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1017 while (clib_time_now (&wrk->clib_time) < timeout);
1019 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1020 vppcom_session_state_str (state));
1021 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1023 return VPPCOM_ETIMEDOUT;
1027 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1029 vcl_session_state_t state;
1033 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1036 vec_foreach (sip, wrk->pending_session_wrk_updates)
1038 s = vcl_session_get (wrk, *sip);
1039 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1040 state = s->session_state;
1041 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1043 s->session_state = state;
1045 vec_reset_length (wrk->pending_session_wrk_updates);
1049 vcl_flush_mq_events (void)
1051 vcl_worker_t *wrk = vcl_worker_get_current ();
1052 svm_msg_q_msg_t *msg;
1057 mq = wrk->app_event_queue;
1058 svm_msg_q_lock (mq);
1059 vcl_mq_dequeue_batch (wrk, mq, ~0);
1060 svm_msg_q_unlock (mq);
1062 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1064 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1065 e = svm_msg_q_msg_data (mq, msg);
1066 vcl_handle_mq_event (wrk, e);
1067 svm_msg_q_free_msg (mq, msg);
1069 vec_reset_length (wrk->mq_msg_vector);
1070 vcl_handle_pending_wrk_updates (wrk);
1074 vppcom_session_unbind (u32 session_handle)
1076 vcl_worker_t *wrk = vcl_worker_get_current ();
1077 session_accepted_msg_t *accepted_msg;
1078 vcl_session_t *session = 0;
1079 vcl_session_msg_t *evt;
1081 session = vcl_session_get_w_handle (wrk, session_handle);
1083 return VPPCOM_EBADFD;
1085 /* Flush pending accept events, if any */
1086 while (clib_fifo_elts (session->accept_evts_fifo))
1088 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1089 accepted_msg = &evt->accepted_msg;
1090 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1091 vcl_send_session_accepted_reply (session->vpp_evt_q,
1092 accepted_msg->context,
1093 session->vpp_handle, -1);
1095 clib_fifo_free (session->accept_evts_fifo);
1097 vcl_send_session_unlisten (wrk, session);
1099 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1100 session->vpp_handle);
1101 vcl_evt (VCL_EVT_UNBIND, session);
1103 session->vpp_handle = ~0;
1104 session->session_state = VCL_STATE_DISCONNECT;
1110 vppcom_session_disconnect (u32 session_handle)
1112 vcl_worker_t *wrk = vcl_worker_get_current ();
1113 svm_msg_q_t *vpp_evt_q;
1114 vcl_session_t *session, *listen_session;
1115 vcl_session_state_t state;
1118 session = vcl_session_get_w_handle (wrk, session_handle);
1120 return VPPCOM_EBADFD;
1122 vpp_handle = session->vpp_handle;
1123 state = session->session_state;
1125 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1126 vpp_handle, state, vppcom_session_state_str (state));
1128 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
1130 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1131 return VPPCOM_EBADFD;
1134 if (state == VCL_STATE_VPP_CLOSING)
1136 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1137 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->api_client_handle,
1139 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1140 session->session_index, vpp_handle);
1144 /* Session doesn't have an event queue yet. Probably a non-blocking
1145 * connect. Wait for the reply */
1146 if (PREDICT_FALSE (!session->vpp_evt_q))
1149 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1150 session->session_index, vpp_handle);
1151 vcl_send_session_disconnect (wrk, session);
1154 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1156 listen_session = vcl_session_get (wrk, session->listener_index);
1157 listen_session->n_accepted_sessions--;
1166 * Notify vpp of the disconnect and mark the worker as free. If we're the
1167 * last worker, do a full cleanup otherwise, since we're probably a forked
1168 * child, avoid syscalls as much as possible. We might've lost privileges.
1171 vppcom_app_exit (void)
1173 if (!pool_elts (vcm->workers))
1175 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1176 vcl_set_worker_index (~0);
1177 vcl_elog_stop (vcm);
1181 vcl_api_attach (void)
1183 if (vcm->cfg.vpp_app_socket_api)
1184 return vcl_sapi_attach ();
1186 return vcl_bapi_attach ();
1190 vcl_api_detach (vcl_worker_t * wrk)
1192 vcl_send_app_detach (wrk);
1194 if (vcm->cfg.vpp_app_socket_api)
1195 return vcl_sapi_detach (wrk);
1197 return vcl_bapi_disconnect_from_vpp ();
1201 * VPPCOM Public API functions
1204 vppcom_app_create (const char *app_name)
1206 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1211 VDBG (1, "already initialized");
1212 return VPPCOM_EEXIST;
1216 vppcom_cfg (&vcm->cfg);
1217 vcl_cfg = &vcm->cfg;
1219 vcm->main_cpu = pthread_self ();
1220 vcm->main_pid = getpid ();
1221 vcm->app_name = format (0, "%s", app_name);
1222 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1223 20 /* timeout in secs */ );
1224 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1225 clib_spinlock_init (&vcm->workers_lock);
1226 clib_rwlock_init (&vcm->segment_table_lock);
1227 atexit (vppcom_app_exit);
1228 vcl_elog_init (vcm);
1230 /* Allocate default worker */
1231 vcl_worker_alloc_and_init ();
1233 if ((rv = vcl_api_attach ()))
1236 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1237 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1243 vppcom_app_destroy (void)
1245 vcl_worker_t *wrk, *current_wrk;
1248 if (!pool_elts (vcm->workers))
1251 vcl_evt (VCL_EVT_DETACH, vcm);
1253 current_wrk = vcl_worker_get_current ();
1256 pool_foreach (wrk, vcm->workers, ({
1257 if (current_wrk != wrk)
1258 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1262 vcl_api_detach (current_wrk);
1263 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1265 vcl_elog_stop (vcm);
1268 * Free the heap and fix vcm
1270 heap = clib_mem_get_heap ();
1271 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1273 vcm = &_vppcom_main;
1278 vppcom_session_create (u8 proto, u8 is_nonblocking)
1280 vcl_worker_t *wrk = vcl_worker_get_current ();
1281 vcl_session_t *session;
1283 session = vcl_session_alloc (wrk);
1285 session->session_type = proto;
1286 session->session_state = VCL_STATE_CLOSED;
1287 session->vpp_handle = ~0;
1288 session->is_dgram = vcl_proto_is_dgram (proto);
1291 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1293 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1294 is_nonblocking, session_index);
1296 VDBG (0, "created session %u", session->session_index);
1298 return vcl_session_handle (session);
1302 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1303 vcl_session_handle_t sh, u8 do_disconnect)
1307 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1309 if (s->flags & VCL_SESSION_F_IS_VEP)
1311 u32 next_sh = s->vep.next_sh;
1312 while (next_sh != ~0)
1314 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1315 if (PREDICT_FALSE (rv < 0))
1316 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1317 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1318 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1319 next_sh = s->vep.next_sh;
1324 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1326 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1328 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1329 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1330 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1335 VDBG (1, "session %u [0x%llx] disconnect skipped",
1336 s->session_index, s->vpp_handle);
1340 if (s->session_state == VCL_STATE_LISTEN)
1342 rv = vppcom_session_unbind (sh);
1343 if (PREDICT_FALSE (rv < 0))
1344 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1345 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1346 vppcom_retval_str (rv));
1349 else if (vcl_session_is_ready (s)
1350 || (vcl_session_is_connectable_listener (wrk, s)))
1352 rv = vppcom_session_disconnect (sh);
1353 if (PREDICT_FALSE (rv < 0))
1354 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1355 " rv %d (%s)", s->session_index, s->vpp_handle,
1356 rv, vppcom_retval_str (rv));
1358 else if (s->session_state == VCL_STATE_DISCONNECT)
1360 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, s);
1361 vcl_send_session_reset_reply (mq, wrk->api_client_handle,
1364 else if (s->session_state == VCL_STATE_DETACHED)
1366 /* Should not happen. VPP cleaned up before app confirmed close */
1367 VDBG (0, "vpp freed session %d before close", s->session_index);
1371 s->session_state = VCL_STATE_CLOSED;
1373 /* Session is removed only after vpp confirms the disconnect */
1377 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1379 vcl_session_free (wrk, s);
1380 vcl_evt (VCL_EVT_CLOSE, s, rv);
1386 vppcom_session_close (uint32_t session_handle)
1388 vcl_worker_t *wrk = vcl_worker_get_current ();
1389 vcl_session_t *session;
1391 session = vcl_session_get_w_handle (wrk, session_handle);
1393 return VPPCOM_EBADFD;
1394 return vcl_session_cleanup (wrk, session, session_handle,
1395 1 /* do_disconnect */ );
1399 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1401 vcl_worker_t *wrk = vcl_worker_get_current ();
1402 vcl_session_t *session = 0;
1405 return VPPCOM_EINVAL;
1407 session = vcl_session_get_w_handle (wrk, session_handle);
1409 return VPPCOM_EBADFD;
1411 if (session->flags & VCL_SESSION_F_IS_VEP)
1413 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1414 session->session_index);
1415 return VPPCOM_EBADFD;
1418 session->transport.is_ip4 = ep->is_ip4;
1420 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1421 sizeof (ip4_address_t));
1423 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1424 sizeof (ip6_address_t));
1425 session->transport.lcl_port = ep->port;
1427 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1428 "proto %s", session->session_index, session_handle,
1429 session->transport.is_ip4 ? "IPv4" : "IPv6",
1430 format_ip46_address, &session->transport.lcl_ip,
1431 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1432 clib_net_to_host_u16 (session->transport.lcl_port),
1433 vppcom_proto_str (session->session_type));
1434 vcl_evt (VCL_EVT_BIND, session);
1436 if (session->session_type == VPPCOM_PROTO_UDP)
1437 vppcom_session_listen (session_handle, 10);
1443 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1445 vcl_worker_t *wrk = vcl_worker_get_current ();
1446 vcl_session_t *listen_session = 0;
1447 u64 listen_vpp_handle;
1450 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1451 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1452 return VPPCOM_EBADFD;
1454 if (q_len == 0 || q_len == ~0)
1455 q_len = vcm->cfg.listen_queue_size;
1457 listen_vpp_handle = listen_session->vpp_handle;
1458 if (listen_session->session_state == VCL_STATE_LISTEN)
1460 VDBG (0, "session %u [0x%llx]: already in listen state!",
1461 listen_sh, listen_vpp_handle);
1465 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1468 * Send listen request to vpp and wait for reply
1470 vcl_send_session_listen (wrk, listen_session);
1471 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1473 vcm->cfg.session_timeout);
1475 if (PREDICT_FALSE (rv))
1477 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1478 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1479 listen_sh, listen_session->vpp_handle, rv,
1480 vppcom_retval_str (rv));
1488 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1490 if (ls->flags & VCL_SESSION_F_IS_VEP)
1492 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1494 return VPPCOM_EBADFD;
1497 if ((ls->session_state != VCL_STATE_LISTEN)
1498 && (!vcl_session_is_connectable_listener (wrk, ls)))
1500 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1501 " (%s)", ls->vpp_handle, ls->session_state,
1502 vppcom_session_state_str (ls->session_state));
1503 return VPPCOM_EBADFD;
1509 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1511 if (!strcmp (proto_str, "TCP"))
1512 *proto = VPPCOM_PROTO_TCP;
1513 else if (!strcmp (proto_str, "tcp"))
1514 *proto = VPPCOM_PROTO_TCP;
1515 else if (!strcmp (proto_str, "UDP"))
1516 *proto = VPPCOM_PROTO_UDP;
1517 else if (!strcmp (proto_str, "udp"))
1518 *proto = VPPCOM_PROTO_UDP;
1519 else if (!strcmp (proto_str, "TLS"))
1520 *proto = VPPCOM_PROTO_TLS;
1521 else if (!strcmp (proto_str, "tls"))
1522 *proto = VPPCOM_PROTO_TLS;
1523 else if (!strcmp (proto_str, "QUIC"))
1524 *proto = VPPCOM_PROTO_QUIC;
1525 else if (!strcmp (proto_str, "quic"))
1526 *proto = VPPCOM_PROTO_QUIC;
1533 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1536 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1537 vcl_worker_t *wrk = vcl_worker_get_current ();
1538 session_accepted_msg_t accepted_msg;
1539 vcl_session_t *listen_session = 0;
1540 vcl_session_t *client_session = 0;
1541 vcl_session_msg_t *evt;
1542 svm_msg_q_msg_t msg;
1547 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1548 if (!listen_session)
1549 return VPPCOM_EBADFD;
1551 listen_session_index = listen_session->session_index;
1552 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1555 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1557 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1558 accept_flags = evt->flags;
1559 accepted_msg = evt->accepted_msg;
1563 is_nonblocking = vcl_session_has_attr (listen_session,
1564 VCL_SESS_ATTR_NONBLOCK);
1567 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1568 return VPPCOM_EAGAIN;
1570 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1571 return VPPCOM_EAGAIN;
1573 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1574 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1576 vcl_handle_mq_event (wrk, e);
1577 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1580 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1581 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1587 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1588 listen_session_index);
1589 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1590 return VPPCOM_ECONNABORTED;
1592 listen_session = vcl_session_get (wrk, listen_session_index);
1593 client_session = vcl_session_get (wrk, client_session_index);
1595 if (flags & O_NONBLOCK)
1596 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1598 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1599 " flags %d, is_nonblocking %u", listen_session->session_index,
1600 listen_session->vpp_handle, client_session_index,
1601 client_session->vpp_handle, flags,
1602 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1606 ep->is_ip4 = client_session->transport.is_ip4;
1607 ep->port = client_session->transport.rmt_port;
1608 if (client_session->transport.is_ip4)
1609 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1610 sizeof (ip4_address_t));
1612 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1613 sizeof (ip6_address_t));
1616 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1617 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1618 client_session_index, client_session->vpp_handle,
1619 format_ip46_address, &client_session->transport.rmt_ip,
1620 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1621 clib_net_to_host_u16 (client_session->transport.rmt_port),
1622 format_ip46_address, &client_session->transport.lcl_ip,
1623 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1624 clib_net_to_host_u16 (client_session->transport.lcl_port));
1625 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1626 client_session_index);
1629 * Session might have been closed already
1633 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1634 client_session->session_state = VCL_STATE_VPP_CLOSING;
1635 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1636 client_session->session_state = VCL_STATE_DISCONNECT;
1638 return vcl_session_handle (client_session);
1642 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1644 vcl_worker_t *wrk = vcl_worker_get_current ();
1645 vcl_session_t *session = 0;
1649 session = vcl_session_get_w_handle (wrk, session_handle);
1651 return VPPCOM_EBADFD;
1652 session_index = session->session_index;
1654 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1656 VDBG (0, "ERROR: cannot connect epoll session %u!",
1657 session->session_index);
1658 return VPPCOM_EBADFD;
1661 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1663 VDBG (0, "session handle %u [0x%llx]: session already "
1664 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1665 session_handle, session->vpp_handle,
1666 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1667 &session->transport.rmt_ip, session->transport.is_ip4 ?
1668 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1669 clib_net_to_host_u16 (session->transport.rmt_port),
1670 vppcom_proto_str (session->session_type), session->session_state,
1671 vppcom_session_state_str (session->session_state));
1675 /* Attempt to connect a connectionless listener */
1676 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1678 if (session->session_type != VPPCOM_PROTO_UDP)
1679 return VPPCOM_EINVAL;
1680 vcl_send_session_unlisten (wrk, session);
1681 session->session_state = VCL_STATE_CLOSED;
1684 session->transport.is_ip4 = server_ep->is_ip4;
1685 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1686 session->transport.rmt_port = server_ep->port;
1687 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1688 session->flags |= VCL_SESSION_F_CONNECTED;
1690 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1691 "port %d proto %s", session_handle,
1692 vppcom_session_state_str (session->session_state),
1693 session->transport.is_ip4 ? "IPv4" : "IPv6",
1694 format_ip46_address,
1695 &session->transport.rmt_ip, session->transport.is_ip4 ?
1696 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1697 clib_net_to_host_u16 (session->transport.rmt_port),
1698 vppcom_proto_str (session->session_type));
1700 vcl_send_session_connect (wrk, session);
1702 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1704 /* State set to STATE_UPDATED to ensure the session is not assumed
1705 * to be ready and to also allow the app to close it prior to vpp's
1706 * connected reply. */
1707 session->session_state = VCL_STATE_UPDATED;
1708 return VPPCOM_EINPROGRESS;
1712 * Wait for reply from vpp if blocking
1714 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1715 vcm->cfg.session_timeout);
1717 session = vcl_session_get (wrk, session_index);
1718 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1719 session->vpp_handle, rv ? "failed" : "succeeded");
1725 vppcom_session_stream_connect (uint32_t session_handle,
1726 uint32_t parent_session_handle)
1728 vcl_worker_t *wrk = vcl_worker_get_current ();
1729 vcl_session_t *session, *parent_session;
1730 u32 session_index, parent_session_index;
1733 session = vcl_session_get_w_handle (wrk, session_handle);
1735 return VPPCOM_EBADFD;
1736 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1737 if (!parent_session)
1738 return VPPCOM_EBADFD;
1740 session_index = session->session_index;
1741 parent_session_index = parent_session->session_index;
1742 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1744 VDBG (0, "ERROR: cannot connect epoll session %u!",
1745 session->session_index);
1746 return VPPCOM_EBADFD;
1749 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1751 VDBG (0, "session handle %u [0x%llx]: session already "
1752 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1753 session_handle, session->vpp_handle,
1754 parent_session_handle, parent_session->vpp_handle,
1755 vppcom_proto_str (session->session_type), session->session_state,
1756 vppcom_session_state_str (session->session_state));
1760 /* Connect to quic session specifics */
1761 session->transport.is_ip4 = parent_session->transport.is_ip4;
1762 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1763 session->transport.rmt_port = 0;
1764 session->parent_handle = parent_session->vpp_handle;
1766 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1767 session_handle, parent_session_handle, parent_session->vpp_handle);
1770 * Send connect request and wait for reply from vpp
1772 vcl_send_session_connect (wrk, session);
1773 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1774 vcm->cfg.session_timeout);
1776 session->listener_index = parent_session_index;
1777 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1779 parent_session->n_accepted_sessions++;
1781 session = vcl_session_get (wrk, session_index);
1782 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1783 session->vpp_handle, rv ? "failed" : "succeeded");
1789 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1791 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1795 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1798 vcl_worker_t *wrk = vcl_worker_get_current ();
1799 int rv, n_read = 0, is_nonblocking;
1800 vcl_session_t *s = 0;
1801 svm_fifo_t *rx_fifo;
1802 svm_msg_q_msg_t msg;
1807 if (PREDICT_FALSE (!buf))
1808 return VPPCOM_EINVAL;
1810 s = vcl_session_get_w_handle (wrk, session_handle);
1811 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1812 return VPPCOM_EBADFD;
1814 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1816 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1817 s->session_index, s->vpp_handle, s->session_state,
1818 vppcom_session_state_str (s->session_state));
1819 return vcl_session_closed_error (s);
1822 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1823 is_ct = vcl_session_is_ct (s);
1824 mq = wrk->app_event_queue;
1825 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1826 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1828 if (svm_fifo_is_empty_cons (rx_fifo))
1832 if (vcl_session_is_closing (s))
1833 return vcl_session_closing_error (s);
1834 svm_fifo_unset_event (s->rx_fifo);
1835 return VPPCOM_EWOULDBLOCK;
1837 while (svm_fifo_is_empty_cons (rx_fifo))
1839 if (vcl_session_is_closing (s))
1840 return vcl_session_closing_error (s);
1842 svm_fifo_unset_event (s->rx_fifo);
1843 svm_msg_q_lock (mq);
1844 if (svm_msg_q_is_empty (mq))
1845 svm_msg_q_wait (mq);
1847 svm_msg_q_sub_w_lock (mq, &msg);
1848 e = svm_msg_q_msg_data (mq, &msg);
1849 svm_msg_q_unlock (mq);
1850 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1851 vcl_handle_mq_event (wrk, e);
1852 svm_msg_q_free_msg (mq, &msg);
1859 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1861 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1866 if (svm_fifo_is_empty_cons (rx_fifo))
1868 svm_fifo_unset_event (s->rx_fifo);
1869 if (!svm_fifo_is_empty_cons (rx_fifo)
1870 && svm_fifo_set_event (s->rx_fifo) && is_nonblocking)
1872 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1873 e->event_type = SESSION_IO_EVT_RX;
1874 e->session_index = s->session_index;
1877 else if (PREDICT_FALSE (rv < n))
1879 /* More data enqueued while reading. Try to drain it
1880 * or fill the buffer */
1886 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1888 svm_fifo_clear_deq_ntf (rx_fifo);
1889 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1890 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1893 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1894 s->vpp_handle, n_read, rx_fifo);
1900 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1902 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1906 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1908 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1912 vppcom_session_read_segments (uint32_t session_handle,
1913 vppcom_data_segment_t * ds, uint32_t n_segments,
1916 vcl_worker_t *wrk = vcl_worker_get_current ();
1917 int n_read = 0, is_nonblocking;
1918 vcl_session_t *s = 0;
1919 svm_fifo_t *rx_fifo;
1920 svm_msg_q_msg_t msg;
1925 s = vcl_session_get_w_handle (wrk, session_handle);
1926 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1927 return VPPCOM_EBADFD;
1929 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1930 return vcl_session_closed_error (s);
1932 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1933 is_ct = vcl_session_is_ct (s);
1934 mq = wrk->app_event_queue;
1935 rx_fifo = s->rx_fifo;
1936 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1939 svm_fifo_unset_event (s->rx_fifo);
1941 if (svm_fifo_is_empty_cons (rx_fifo))
1945 svm_fifo_unset_event (rx_fifo);
1946 return VPPCOM_EWOULDBLOCK;
1948 while (svm_fifo_is_empty_cons (rx_fifo))
1950 if (vcl_session_is_closing (s))
1951 return vcl_session_closing_error (s);
1953 svm_fifo_unset_event (rx_fifo);
1954 svm_msg_q_lock (mq);
1955 if (svm_msg_q_is_empty (mq))
1956 svm_msg_q_wait (mq);
1958 svm_msg_q_sub_w_lock (mq, &msg);
1959 e = svm_msg_q_msg_data (mq, &msg);
1960 svm_msg_q_unlock (mq);
1961 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1962 vcl_handle_mq_event (wrk, e);
1963 svm_msg_q_free_msg (mq, &msg);
1967 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1968 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1970 return VPPCOM_EAGAIN;
1972 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1974 svm_fifo_unset_event (s->rx_fifo);
1975 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1976 && svm_fifo_set_event (s->rx_fifo)
1977 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1980 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1981 e->event_type = SESSION_IO_EVT_RX;
1982 e->session_index = s->session_index;
1986 s->rx_bytes_pending += n_read;
1991 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
1993 vcl_worker_t *wrk = vcl_worker_get_current ();
1996 s = vcl_session_get_w_handle (wrk, session_handle);
1997 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2000 svm_fifo_dequeue_drop (s->rx_fifo, n_bytes);
2002 ASSERT (s->rx_bytes_pending < n_bytes);
2003 s->rx_bytes_pending -= n_bytes;
2007 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2009 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2013 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2015 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2017 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2023 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2024 size_t n, u8 is_flush, u8 is_dgram)
2026 int n_write, is_nonblocking;
2027 session_evt_type_t et;
2028 svm_msg_q_msg_t msg;
2029 svm_fifo_t *tx_fifo;
2034 if (PREDICT_FALSE (!buf || n == 0))
2035 return VPPCOM_EINVAL;
2037 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2039 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2040 " session!", s->session_index, s->vpp_handle);
2041 return VPPCOM_EBADFD;
2044 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2046 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2047 s->session_index, s->vpp_handle, s->session_state,
2048 vppcom_session_state_str (s->session_state));
2049 return vcl_session_closed_error (s);;
2052 is_ct = vcl_session_is_ct (s);
2053 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2054 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2056 mq = wrk->app_event_queue;
2057 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2061 return VPPCOM_EWOULDBLOCK;
2063 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2065 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2066 if (vcl_session_is_closing (s))
2067 return vcl_session_closing_error (s);
2068 svm_msg_q_lock (mq);
2069 if (svm_msg_q_is_empty (mq))
2070 svm_msg_q_wait (mq);
2072 svm_msg_q_sub_w_lock (mq, &msg);
2073 e = svm_msg_q_msg_data (mq, &msg);
2074 svm_msg_q_unlock (mq);
2076 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2077 vcl_handle_mq_event (wrk, e);
2078 svm_msg_q_free_msg (mq, &msg);
2082 et = SESSION_IO_EVT_TX;
2083 if (is_flush && !is_ct)
2084 et = SESSION_IO_EVT_TX_FLUSH;
2087 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2088 s->vpp_evt_q, buf, n, et,
2089 0 /* do_evt */ , SVM_Q_WAIT);
2091 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2092 0 /* do_evt */ , SVM_Q_WAIT);
2094 if (svm_fifo_set_event (s->tx_fifo))
2095 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2098 /* The underlying fifo segment can run out of memory */
2099 if (PREDICT_FALSE (n_write < 0))
2100 return VPPCOM_EAGAIN;
2102 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2103 s->vpp_handle, n_write);
2109 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2111 vcl_worker_t *wrk = vcl_worker_get_current ();
2114 s = vcl_session_get_w_handle (wrk, session_handle);
2115 if (PREDICT_FALSE (!s))
2116 return VPPCOM_EBADFD;
2118 return vppcom_session_write_inline (wrk, s, buf, n,
2119 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2123 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2125 vcl_worker_t *wrk = vcl_worker_get_current ();
2128 s = vcl_session_get_w_handle (wrk, session_handle);
2129 if (PREDICT_FALSE (!s))
2130 return VPPCOM_EBADFD;
2132 return vppcom_session_write_inline (wrk, s, buf, n,
2133 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2136 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2137 if (PREDICT_FALSE (!_s->rx_fifo)) \
2139 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2141 if (!vcl_session_is_ct (_s)) \
2143 svm_fifo_unset_event (_s->rx_fifo); \
2144 if (svm_fifo_is_empty (_s->rx_fifo)) \
2147 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2149 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2150 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2156 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2157 unsigned long n_bits, unsigned long *read_map,
2158 unsigned long *write_map,
2159 unsigned long *except_map, u32 * bits_set)
2161 session_disconnected_msg_t *disconnected_msg;
2162 session_connected_msg_t *connected_msg;
2163 vcl_session_t *session;
2166 switch (e->event_type)
2168 case SESSION_IO_EVT_RX:
2169 sid = e->session_index;
2170 session = vcl_session_get (wrk, sid);
2171 if (!session || !vcl_session_is_open (session))
2173 vcl_fifo_rx_evt_valid_or_break (session);
2174 if (sid < n_bits && read_map)
2176 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2180 case SESSION_IO_EVT_TX:
2181 sid = e->session_index;
2182 session = vcl_session_get (wrk, sid);
2183 if (!session || !vcl_session_is_open (session))
2185 if (sid < n_bits && write_map)
2187 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2191 case SESSION_CTRL_EVT_ACCEPTED:
2192 session = vcl_session_accepted (wrk,
2193 (session_accepted_msg_t *) e->data);
2196 sid = session->session_index;
2197 if (sid < n_bits && read_map)
2199 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2203 case SESSION_CTRL_EVT_CONNECTED:
2204 connected_msg = (session_connected_msg_t *) e->data;
2205 sid = vcl_session_connected_handler (wrk, connected_msg);
2206 if (sid == VCL_INVALID_SESSION_INDEX)
2208 if (sid < n_bits && write_map)
2210 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2214 case SESSION_CTRL_EVT_DISCONNECTED:
2215 disconnected_msg = (session_disconnected_msg_t *) e->data;
2216 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2219 sid = session->session_index;
2220 if (sid < n_bits && except_map)
2222 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2226 case SESSION_CTRL_EVT_RESET:
2227 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2228 if (sid < n_bits && except_map)
2230 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2234 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2235 vcl_session_unlisten_reply_handler (wrk, e->data);
2237 case SESSION_CTRL_EVT_MIGRATED:
2238 vcl_session_migrated_handler (wrk, e->data);
2240 case SESSION_CTRL_EVT_CLEANUP:
2241 vcl_session_cleanup_handler (wrk, e->data);
2243 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2244 vcl_session_worker_update_reply_handler (wrk, e->data);
2246 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2247 vcl_session_req_worker_update_handler (wrk, e->data);
2249 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2250 vcl_session_app_add_segment_handler (wrk, e->data);
2252 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2253 vcl_session_app_del_segment_handler (wrk, e->data);
2255 case SESSION_CTRL_EVT_APP_WRK_RPC:
2256 vcl_worker_rpc_handler (wrk, e->data);
2259 clib_warning ("unhandled: %u", e->event_type);
2265 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2266 unsigned long n_bits, unsigned long *read_map,
2267 unsigned long *write_map, unsigned long *except_map,
2268 double time_to_wait, u32 * bits_set)
2270 svm_msg_q_msg_t *msg;
2274 svm_msg_q_lock (mq);
2275 if (svm_msg_q_is_empty (mq))
2279 svm_msg_q_unlock (mq);
2285 svm_msg_q_unlock (mq);
2288 else if (time_to_wait < 0)
2290 svm_msg_q_wait (mq);
2294 if (svm_msg_q_timedwait (mq, time_to_wait))
2296 svm_msg_q_unlock (mq);
2301 vcl_mq_dequeue_batch (wrk, mq, ~0);
2302 svm_msg_q_unlock (mq);
2304 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2306 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2307 e = svm_msg_q_msg_data (mq, msg);
2308 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2309 except_map, bits_set);
2310 svm_msg_q_free_msg (mq, msg);
2312 vec_reset_length (wrk->mq_msg_vector);
2313 vcl_handle_pending_wrk_updates (wrk);
2318 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2319 vcl_si_set * read_map, vcl_si_set * write_map,
2320 vcl_si_set * except_map, double time_to_wait,
2323 double wait = 0, start = 0;
2327 wait = time_to_wait;
2328 start = clib_time_now (&wrk->clib_time);
2333 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2334 write_map, except_map, wait, bits_set);
2340 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2348 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2349 vcl_si_set * read_map, vcl_si_set * write_map,
2350 vcl_si_set * except_map, double time_to_wait,
2353 vcl_mq_evt_conn_t *mqc;
2354 int __clib_unused n_read;
2358 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2359 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2360 vec_len (wrk->mq_events), time_to_wait);
2361 for (i = 0; i < n_mq_evts; i++)
2363 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2364 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2365 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2366 except_map, 0, bits_set);
2369 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2373 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2374 vcl_si_set * except_map, double time_to_wait)
2376 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2377 vcl_worker_t *wrk = vcl_worker_get_current ();
2378 vcl_session_t *session = 0;
2381 if (n_bits && read_map)
2383 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2384 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2385 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2386 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2388 if (n_bits && write_map)
2390 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2391 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2392 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2393 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2395 if (n_bits && except_map)
2397 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2398 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2399 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2400 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2410 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2411 if (!(session = vcl_session_get (wrk, sid)))
2413 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2418 if (vcl_session_write_ready (session))
2420 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2424 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2431 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2432 if (!(session = vcl_session_get (wrk, sid)))
2434 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2439 if (vcl_session_read_ready (session))
2441 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2449 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2451 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2452 read_map, write_map, except_map, &bits_set);
2454 vec_reset_length (wrk->unhandled_evts_vector);
2456 if (vcm->cfg.use_mq_eventfd)
2457 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2458 time_to_wait, &bits_set);
2460 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2461 time_to_wait, &bits_set);
2467 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2469 vppcom_epoll_t *vep;
2470 u32 sh = vep_handle;
2473 if (VPPCOM_DEBUG <= 2)
2476 s = vcl_session_get_w_handle (wrk, vep_handle);
2477 if (PREDICT_FALSE (!s))
2479 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2482 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2484 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2488 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2491 " is_vep_session = %u\n"
2492 " next_sh = 0x%x (%u)\n"
2493 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2494 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2496 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2498 s = vcl_session_get_w_handle (wrk, sh);
2499 if (PREDICT_FALSE (!s))
2501 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2504 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2506 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2508 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2510 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2514 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2515 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2516 sh, s->vep.vep_sh, vep_handle);
2517 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2519 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2521 " next_sh = 0x%x (%u)\n"
2522 " prev_sh = 0x%x (%u)\n"
2523 " vep_sh = 0x%x (%u)\n"
2524 " ev.events = 0x%x\n"
2525 " ev.data.u64 = 0x%llx\n"
2528 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2529 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2530 vep->ev.data.u64, vep->et_mask);
2535 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2539 vppcom_epoll_create (void)
2541 vcl_worker_t *wrk = vcl_worker_get_current ();
2542 vcl_session_t *vep_session;
2544 vep_session = vcl_session_alloc (wrk);
2546 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2547 vep_session->vep.vep_sh = ~0;
2548 vep_session->vep.next_sh = ~0;
2549 vep_session->vep.prev_sh = ~0;
2550 vep_session->vpp_handle = ~0;
2552 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2553 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2555 return vcl_session_handle (vep_session);
2559 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2560 struct epoll_event *event)
2562 vcl_worker_t *wrk = vcl_worker_get_current ();
2563 vcl_session_t *vep_session;
2568 if (vep_handle == session_handle)
2570 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2571 return VPPCOM_EINVAL;
2574 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2575 if (PREDICT_FALSE (!vep_session))
2577 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2578 return VPPCOM_EBADFD;
2580 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2582 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2583 return VPPCOM_EINVAL;
2586 ASSERT (vep_session->vep.vep_sh == ~0);
2587 ASSERT (vep_session->vep.prev_sh == ~0);
2589 s = vcl_session_get_w_handle (wrk, session_handle);
2590 if (PREDICT_FALSE (!s))
2592 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2593 return VPPCOM_EBADFD;
2595 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2597 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2598 return VPPCOM_EINVAL;
2604 if (PREDICT_FALSE (!event))
2606 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2607 return VPPCOM_EINVAL;
2609 if (vep_session->vep.next_sh != ~0)
2611 vcl_session_t *next_session;
2612 next_session = vcl_session_get_w_handle (wrk,
2613 vep_session->vep.next_sh);
2614 if (PREDICT_FALSE (!next_session))
2616 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2617 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2618 return VPPCOM_EBADFD;
2620 ASSERT (next_session->vep.prev_sh == vep_handle);
2621 next_session->vep.prev_sh = session_handle;
2623 s->vep.next_sh = vep_session->vep.next_sh;
2624 s->vep.prev_sh = vep_handle;
2625 s->vep.vep_sh = vep_handle;
2626 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2628 s->flags &= ~VCL_SESSION_F_IS_VEP;
2629 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2630 vep_session->vep.next_sh = session_handle;
2632 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2633 if (txf && (event->events & EPOLLOUT))
2634 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2636 /* Generate EPOLLOUT if tx fifo not full */
2637 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2639 session_event_t e = { 0 };
2640 e.event_type = SESSION_IO_EVT_TX;
2641 e.session_index = s->session_index;
2642 vec_add1 (wrk->unhandled_evts_vector, e);
2644 /* Generate EPOLLIN if rx fifo has data */
2645 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2647 session_event_t e = { 0 };
2648 e.event_type = SESSION_IO_EVT_RX;
2649 e.session_index = s->session_index;
2650 vec_add1 (wrk->unhandled_evts_vector, e);
2652 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2653 vep_handle, session_handle, event->events, event->data.u64);
2654 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2658 if (PREDICT_FALSE (!event))
2660 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2664 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2666 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2670 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2672 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2673 session_handle, s->vep.vep_sh, vep_handle);
2678 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2679 if ((event->events & EPOLLOUT) &&
2680 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2682 session_event_t e = { 0 };
2683 e.event_type = SESSION_IO_EVT_TX;
2684 e.session_index = s->session_index;
2685 vec_add1 (wrk->unhandled_evts_vector, e);
2687 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2689 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2690 if (event->events & EPOLLOUT)
2691 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2693 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2694 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2695 vep_handle, session_handle, event->events, event->data.u64);
2699 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2701 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2705 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2707 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2708 session_handle, s->vep.vep_sh, vep_handle);
2713 if (s->vep.prev_sh == vep_handle)
2714 vep_session->vep.next_sh = s->vep.next_sh;
2717 vcl_session_t *prev_session;
2718 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2719 if (PREDICT_FALSE (!prev_session))
2721 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2722 s->vep.prev_sh, session_handle);
2723 return VPPCOM_EBADFD;
2725 ASSERT (prev_session->vep.next_sh == session_handle);
2726 prev_session->vep.next_sh = s->vep.next_sh;
2728 if (s->vep.next_sh != ~0)
2730 vcl_session_t *next_session;
2731 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2732 if (PREDICT_FALSE (!next_session))
2734 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2735 s->vep.next_sh, session_handle);
2736 return VPPCOM_EBADFD;
2738 ASSERT (next_session->vep.prev_sh == session_handle);
2739 next_session->vep.prev_sh = s->vep.prev_sh;
2742 memset (&s->vep, 0, sizeof (s->vep));
2743 s->vep.next_sh = ~0;
2744 s->vep.prev_sh = ~0;
2746 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2748 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2750 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2752 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2754 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2758 VDBG (0, "Invalid operation (%d)!", op);
2762 vep_verify_epoll_chain (wrk, vep_handle);
2769 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2770 struct epoll_event *events, u32 * num_ev)
2772 session_disconnected_msg_t *disconnected_msg;
2773 session_connected_msg_t *connected_msg;
2774 u32 sid = ~0, session_events;
2775 u64 session_evt_data = ~0;
2776 vcl_session_t *session;
2779 switch (e->event_type)
2781 case SESSION_IO_EVT_RX:
2782 sid = e->session_index;
2783 session = vcl_session_get (wrk, sid);
2784 if (vcl_session_is_closed (session))
2786 vcl_fifo_rx_evt_valid_or_break (session);
2787 session_events = session->vep.ev.events;
2788 if (!(EPOLLIN & session->vep.ev.events)
2789 || (session->flags & VCL_SESSION_F_HAS_RX_EVT))
2792 events[*num_ev].events |= EPOLLIN;
2793 session_evt_data = session->vep.ev.data.u64;
2794 session->flags |= VCL_SESSION_F_HAS_RX_EVT;
2796 case SESSION_IO_EVT_TX:
2797 sid = e->session_index;
2798 session = vcl_session_get (wrk, sid);
2799 if (vcl_session_is_closed (session))
2801 session_events = session->vep.ev.events;
2802 if (!(EPOLLOUT & session_events))
2805 events[*num_ev].events |= EPOLLOUT;
2806 session_evt_data = session->vep.ev.data.u64;
2807 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (session) ?
2808 session->ct_tx_fifo : session->tx_fifo);
2810 case SESSION_CTRL_EVT_ACCEPTED:
2811 session = vcl_session_accepted (wrk,
2812 (session_accepted_msg_t *) e->data);
2816 session_events = session->vep.ev.events;
2817 if (!(EPOLLIN & session_events))
2821 events[*num_ev].events |= EPOLLIN;
2822 session_evt_data = session->vep.ev.data.u64;
2824 case SESSION_CTRL_EVT_CONNECTED:
2825 connected_msg = (session_connected_msg_t *) e->data;
2826 sid = vcl_session_connected_handler (wrk, connected_msg);
2827 /* Generate EPOLLOUT because there's no connected event */
2828 session = vcl_session_get (wrk, sid);
2829 if (vcl_session_is_closed (session))
2831 session_events = session->vep.ev.events;
2832 if (!(EPOLLOUT & session_events))
2835 events[*num_ev].events |= EPOLLOUT;
2836 session_evt_data = session->vep.ev.data.u64;
2837 if (session->session_state == VCL_STATE_DETACHED)
2838 events[*num_ev].events |= EPOLLHUP;
2840 case SESSION_CTRL_EVT_DISCONNECTED:
2841 disconnected_msg = (session_disconnected_msg_t *) e->data;
2842 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2843 if (vcl_session_is_closed (session))
2845 session_events = session->vep.ev.events;
2847 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2848 session_evt_data = session->vep.ev.data.u64;
2850 case SESSION_CTRL_EVT_RESET:
2851 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2852 session = vcl_session_get (wrk, sid);
2853 if (vcl_session_is_closed (session))
2855 session_events = session->vep.ev.events;
2857 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2858 session_evt_data = session->vep.ev.data.u64;
2860 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2861 vcl_session_unlisten_reply_handler (wrk, e->data);
2863 case SESSION_CTRL_EVT_MIGRATED:
2864 vcl_session_migrated_handler (wrk, e->data);
2866 case SESSION_CTRL_EVT_CLEANUP:
2867 vcl_session_cleanup_handler (wrk, e->data);
2869 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2870 vcl_session_req_worker_update_handler (wrk, e->data);
2872 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2873 vcl_session_worker_update_reply_handler (wrk, e->data);
2875 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2876 vcl_session_app_add_segment_handler (wrk, e->data);
2878 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2879 vcl_session_app_del_segment_handler (wrk, e->data);
2881 case SESSION_CTRL_EVT_APP_WRK_RPC:
2882 vcl_worker_rpc_handler (wrk, e->data);
2885 VDBG (0, "unhandled: %u", e->event_type);
2891 events[*num_ev].data.u64 = session_evt_data;
2892 if (EPOLLONESHOT & session_events)
2894 session = vcl_session_get (wrk, sid);
2895 session->vep.ev.events = 0;
2902 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2903 struct epoll_event *events, u32 maxevents,
2904 double wait_for_time, u32 * num_ev)
2906 svm_msg_q_msg_t *msg;
2910 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2911 goto handle_dequeued;
2913 svm_msg_q_lock (mq);
2914 if (svm_msg_q_is_empty (mq))
2918 svm_msg_q_unlock (mq);
2921 else if (wait_for_time < 0)
2923 svm_msg_q_wait (mq);
2927 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2929 svm_msg_q_unlock (mq);
2934 ASSERT (maxevents > *num_ev);
2935 vcl_mq_dequeue_batch (wrk, mq, ~0);
2936 svm_msg_q_unlock (mq);
2939 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2941 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2942 e = svm_msg_q_msg_data (mq, msg);
2943 if (*num_ev < maxevents)
2944 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2946 vcl_handle_mq_event (wrk, e);
2947 svm_msg_q_free_msg (mq, msg);
2949 vec_reset_length (wrk->mq_msg_vector);
2950 vcl_handle_pending_wrk_updates (wrk);
2955 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2956 int maxevents, u32 n_evts, double wait_for_time)
2958 double wait = 0, start = 0, now;
2962 wait = wait_for_time;
2963 start = clib_time_now (&wrk->clib_time);
2968 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2975 now = clib_time_now (&wrk->clib_time);
2976 wait -= (now - start) * 1e3;
2985 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2986 int maxevents, u32 n_evts, double wait_for_time)
2988 vcl_mq_evt_conn_t *mqc;
2989 int __clib_unused n_read;
2993 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2995 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2996 vec_len (wrk->mq_events), wait_for_time);
2997 for (i = 0; i < n_mq_evts; i++)
2999 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3000 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3001 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3003 if (!n_evts && n_mq_evts > 0)
3006 return (int) n_evts;
3010 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3011 int maxevents, double wait_for_time)
3013 vcl_worker_t *wrk = vcl_worker_get_current ();
3014 vcl_session_t *vep_session;
3018 if (PREDICT_FALSE (maxevents <= 0))
3020 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3021 return VPPCOM_EINVAL;
3024 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3026 return VPPCOM_EBADFD;
3028 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3030 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3031 return VPPCOM_EINVAL;
3034 memset (events, 0, sizeof (*events) * maxevents);
3036 if (vec_len (wrk->unhandled_evts_vector))
3038 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3040 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3042 if (n_evts == maxevents)
3044 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3048 vec_reset_length (wrk->unhandled_evts_vector);
3051 if (vcm->cfg.use_mq_eventfd)
3052 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3055 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3060 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3061 void *buffer, uint32_t * buflen)
3063 vcl_worker_t *wrk = vcl_worker_get_current ();
3064 vcl_session_t *session;
3066 u32 *flags = buffer, tmp_flags = 0;
3067 vppcom_endpt_t *ep = buffer;
3069 session = vcl_session_get_w_handle (wrk, session_handle);
3071 return VPPCOM_EBADFD;
3075 case VPPCOM_ATTR_GET_NREAD:
3076 rv = vcl_session_read_ready (session);
3077 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3081 case VPPCOM_ATTR_GET_NWRITE:
3082 rv = vcl_session_write_ready (session);
3083 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3087 case VPPCOM_ATTR_GET_FLAGS:
3088 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3092 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3094 *buflen = sizeof (*flags);
3095 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3096 "is_nonblocking = %u", session_handle, *flags,
3097 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3103 case VPPCOM_ATTR_SET_FLAGS:
3104 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3106 if (*flags & O_NONBLOCK)
3107 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3109 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3111 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3112 " is_nonblocking = %u", session_handle, *flags,
3113 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3119 case VPPCOM_ATTR_GET_PEER_ADDR:
3120 if (PREDICT_TRUE (buffer && buflen &&
3121 (*buflen >= sizeof (*ep)) && ep->ip))
3123 ep->is_ip4 = session->transport.is_ip4;
3124 ep->port = session->transport.rmt_port;
3125 if (session->transport.is_ip4)
3126 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3127 sizeof (ip4_address_t));
3129 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3130 sizeof (ip6_address_t));
3131 *buflen = sizeof (*ep);
3132 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3133 "addr = %U, port %u", session_handle, ep->is_ip4,
3134 format_ip46_address, &session->transport.rmt_ip,
3135 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3136 clib_net_to_host_u16 (ep->port));
3142 case VPPCOM_ATTR_GET_LCL_ADDR:
3143 if (PREDICT_TRUE (buffer && buflen &&
3144 (*buflen >= sizeof (*ep)) && ep->ip))
3146 ep->is_ip4 = session->transport.is_ip4;
3147 ep->port = session->transport.lcl_port;
3148 if (session->transport.is_ip4)
3149 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3150 sizeof (ip4_address_t));
3152 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3153 sizeof (ip6_address_t));
3154 *buflen = sizeof (*ep);
3155 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3156 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3157 &session->transport.lcl_ip,
3158 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3159 clib_net_to_host_u16 (ep->port));
3165 case VPPCOM_ATTR_SET_LCL_ADDR:
3166 if (PREDICT_TRUE (buffer && buflen &&
3167 (*buflen >= sizeof (*ep)) && ep->ip))
3169 session->transport.is_ip4 = ep->is_ip4;
3170 session->transport.lcl_port = ep->port;
3171 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3172 *buflen = sizeof (*ep);
3173 VDBG (1, "VPPCOM_ATTR_SET_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_GET_LIBC_EPFD:
3184 rv = session->libc_epfd;
3185 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3188 case VPPCOM_ATTR_SET_LIBC_EPFD:
3189 if (PREDICT_TRUE (buffer && buflen &&
3190 (*buflen == sizeof (session->libc_epfd))))
3192 session->libc_epfd = *(int *) buffer;
3193 *buflen = sizeof (session->libc_epfd);
3195 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3196 session->libc_epfd, *buflen);
3202 case VPPCOM_ATTR_GET_PROTOCOL:
3203 if (buffer && buflen && (*buflen >= sizeof (int)))
3205 *(int *) buffer = session->session_type;
3206 *buflen = sizeof (int);
3208 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3209 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3215 case VPPCOM_ATTR_GET_LISTEN:
3216 if (buffer && buflen && (*buflen >= sizeof (int)))
3218 *(int *) buffer = vcl_session_has_attr (session,
3219 VCL_SESS_ATTR_LISTEN);
3220 *buflen = sizeof (int);
3222 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3229 case VPPCOM_ATTR_GET_ERROR:
3230 if (buffer && buflen && (*buflen >= sizeof (int)))
3232 *(int *) buffer = 0;
3233 *buflen = sizeof (int);
3235 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3236 *(int *) buffer, *buflen);
3242 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3243 if (buffer && buflen && (*buflen >= sizeof (u32)))
3247 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3249 svm_fifo_size (session->tx_fifo) :
3250 vcm->cfg.tx_fifo_size);
3251 *buflen = sizeof (u32);
3253 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3254 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3261 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3262 if (buffer && buflen && (*buflen == sizeof (u32)))
3265 session->sndbuf_size = *(u32 *) buffer;
3266 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3267 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3274 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3275 if (buffer && buflen && (*buflen >= sizeof (u32)))
3279 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3281 svm_fifo_size (session->rx_fifo) :
3282 vcm->cfg.rx_fifo_size);
3283 *buflen = sizeof (u32);
3285 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3286 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3292 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3293 if (buffer && buflen && (*buflen == sizeof (u32)))
3296 session->rcvbuf_size = *(u32 *) buffer;
3297 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3298 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3305 case VPPCOM_ATTR_GET_REUSEADDR:
3306 if (buffer && buflen && (*buflen >= sizeof (int)))
3309 *(int *) buffer = vcl_session_has_attr (session,
3310 VCL_SESS_ATTR_REUSEADDR);
3311 *buflen = sizeof (int);
3313 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3314 *(int *) buffer, *buflen);
3320 case VPPCOM_ATTR_SET_REUSEADDR:
3321 if (buffer && buflen && (*buflen == sizeof (int)) &&
3322 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3325 if (*(int *) buffer)
3326 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3328 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3330 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3331 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3338 case VPPCOM_ATTR_GET_REUSEPORT:
3339 if (buffer && buflen && (*buflen >= sizeof (int)))
3342 *(int *) buffer = vcl_session_has_attr (session,
3343 VCL_SESS_ATTR_REUSEPORT);
3344 *buflen = sizeof (int);
3346 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3347 *(int *) buffer, *buflen);
3353 case VPPCOM_ATTR_SET_REUSEPORT:
3354 if (buffer && buflen && (*buflen == sizeof (int)) &&
3355 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3358 if (*(int *) buffer)
3359 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3361 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3363 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3364 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3371 case VPPCOM_ATTR_GET_BROADCAST:
3372 if (buffer && buflen && (*buflen >= sizeof (int)))
3375 *(int *) buffer = vcl_session_has_attr (session,
3376 VCL_SESS_ATTR_BROADCAST);
3377 *buflen = sizeof (int);
3379 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3380 *(int *) buffer, *buflen);
3386 case VPPCOM_ATTR_SET_BROADCAST:
3387 if (buffer && buflen && (*buflen == sizeof (int)))
3390 if (*(int *) buffer)
3391 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3393 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3395 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3396 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3403 case VPPCOM_ATTR_GET_V6ONLY:
3404 if (buffer && buflen && (*buflen >= sizeof (int)))
3407 *(int *) buffer = vcl_session_has_attr (session,
3408 VCL_SESS_ATTR_V6ONLY);
3409 *buflen = sizeof (int);
3411 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3412 *(int *) buffer, *buflen);
3418 case VPPCOM_ATTR_SET_V6ONLY:
3419 if (buffer && buflen && (*buflen == sizeof (int)))
3422 if (*(int *) buffer)
3423 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3425 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3427 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3428 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3435 case VPPCOM_ATTR_GET_KEEPALIVE:
3436 if (buffer && buflen && (*buflen >= sizeof (int)))
3439 *(int *) buffer = vcl_session_has_attr (session,
3440 VCL_SESS_ATTR_KEEPALIVE);
3441 *buflen = sizeof (int);
3443 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3444 *(int *) buffer, *buflen);
3450 case VPPCOM_ATTR_SET_KEEPALIVE:
3451 if (buffer && buflen && (*buflen == sizeof (int)))
3454 if (*(int *) buffer)
3455 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3457 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3459 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3460 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3467 case VPPCOM_ATTR_GET_TCP_NODELAY:
3468 if (buffer && buflen && (*buflen >= sizeof (int)))
3471 *(int *) buffer = vcl_session_has_attr (session,
3472 VCL_SESS_ATTR_TCP_NODELAY);
3473 *buflen = sizeof (int);
3475 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3476 *(int *) buffer, *buflen);
3482 case VPPCOM_ATTR_SET_TCP_NODELAY:
3483 if (buffer && buflen && (*buflen == sizeof (int)))
3486 if (*(int *) buffer)
3487 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3489 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3491 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3492 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3499 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3500 if (buffer && buflen && (*buflen >= sizeof (int)))
3503 *(int *) buffer = vcl_session_has_attr (session,
3504 VCL_SESS_ATTR_TCP_KEEPIDLE);
3505 *buflen = sizeof (int);
3507 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3508 *(int *) buffer, *buflen);
3514 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3515 if (buffer && buflen && (*buflen == sizeof (int)))
3518 if (*(int *) buffer)
3519 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3521 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3523 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3524 vcl_session_has_attr (session,
3525 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3531 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3532 if (buffer && buflen && (*buflen >= sizeof (int)))
3535 *(int *) buffer = vcl_session_has_attr (session,
3536 VCL_SESS_ATTR_TCP_KEEPINTVL);
3537 *buflen = sizeof (int);
3539 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3540 *(int *) buffer, *buflen);
3546 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3547 if (buffer && buflen && (*buflen == sizeof (int)))
3550 if (*(int *) buffer)
3551 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3553 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3555 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3556 vcl_session_has_attr (session,
3557 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3563 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3564 if (buffer && buflen && (*buflen >= sizeof (u32)))
3567 *(u32 *) buffer = session->user_mss;
3568 *buflen = sizeof (int);
3570 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3571 *(int *) buffer, *buflen);
3577 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3578 if (buffer && buflen && (*buflen == sizeof (u32)))
3581 session->user_mss = *(u32 *) buffer;
3583 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3584 session->user_mss, *buflen);
3590 case VPPCOM_ATTR_SET_SHUT:
3591 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3592 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3593 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3594 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3597 case VPPCOM_ATTR_GET_SHUT:
3598 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3600 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3603 *(int *) buffer = SHUT_RD;
3604 else if (tmp_flags == 2)
3605 *(int *) buffer = SHUT_WR;
3606 else if (tmp_flags == 3)
3607 *(int *) buffer = SHUT_RDWR;
3608 *buflen = sizeof (int);
3611 case VPPCOM_ATTR_SET_CONNECTED:
3612 session->flags |= VCL_SESSION_F_CONNECTED;
3624 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3625 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3627 vcl_worker_t *wrk = vcl_worker_get_current ();
3628 vcl_session_t *session;
3632 rv = vppcom_session_read (session_handle, buffer, buflen);
3633 else if (flags & MSG_PEEK)
3634 rv = vppcom_session_peek (session_handle, buffer, buflen);
3637 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3638 return VPPCOM_EAFNOSUPPORT;
3643 session = vcl_session_get_w_handle (wrk, session_handle);
3644 if (session->transport.is_ip4)
3645 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3646 sizeof (ip4_address_t));
3648 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3649 sizeof (ip6_address_t));
3650 ep->is_ip4 = session->transport.is_ip4;
3651 ep->port = session->transport.rmt_port;
3658 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3659 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3661 vcl_worker_t *wrk = vcl_worker_get_current ();
3664 s = vcl_session_get_w_handle (wrk, session_handle);
3666 return VPPCOM_EBADFD;
3669 return VPPCOM_EINVAL;
3673 if (s->session_type != VPPCOM_PROTO_UDP
3674 || (s->flags & VCL_SESSION_F_CONNECTED))
3675 return VPPCOM_EINVAL;
3677 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3678 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3680 vcl_send_session_connect (wrk, s);
3684 s->transport.is_ip4 = ep->is_ip4;
3685 s->transport.rmt_port = ep->port;
3686 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3692 // TBD check the flags and do the right thing
3693 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3696 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3697 s->is_dgram ? 1 : 0));
3701 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3703 vcl_worker_t *wrk = vcl_worker_get_current ();
3704 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3705 u32 i, keep_trying = 1;
3706 svm_msg_q_msg_t msg;
3710 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3713 return VPPCOM_EFAULT;
3717 vcl_session_t *session;
3719 /* Dequeue all events and drop all unhandled io events */
3720 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3722 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3723 vcl_handle_mq_event (wrk, e);
3724 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3726 vec_reset_length (wrk->unhandled_evts_vector);
3728 for (i = 0; i < n_sids; i++)
3730 session = vcl_session_get (wrk, vp[i].sh);
3733 vp[i].revents = POLLHUP;
3740 if (POLLIN & vp[i].events)
3742 rv = vcl_session_read_ready (session);
3745 vp[i].revents |= POLLIN;
3752 case VPPCOM_ECONNRESET:
3753 vp[i].revents = POLLHUP;
3757 vp[i].revents = POLLERR;
3764 if (POLLOUT & vp[i].events)
3766 rv = vcl_session_write_ready (session);
3769 vp[i].revents |= POLLOUT;
3776 case VPPCOM_ECONNRESET:
3777 vp[i].revents = POLLHUP;
3781 vp[i].revents = POLLERR;
3788 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3790 vp[i].revents = POLLNVAL;
3794 if (wait_for_time != -1)
3795 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3797 while ((num_ev == 0) && keep_trying);
3803 vppcom_mq_epoll_fd (void)
3805 vcl_worker_t *wrk = vcl_worker_get_current ();
3806 return wrk->mqs_epfd;
3810 vppcom_session_index (vcl_session_handle_t session_handle)
3812 return session_handle & 0xFFFFFF;
3816 vppcom_session_worker (vcl_session_handle_t session_handle)
3818 return session_handle >> 24;
3822 vppcom_worker_register (void)
3824 if (!vcl_worker_alloc_and_init ())
3825 return VPPCOM_EEXIST;
3827 if (vcl_worker_register_with_vpp ())
3828 return VPPCOM_EEXIST;
3834 vppcom_worker_unregister (void)
3836 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3837 vcl_set_worker_index (~0);
3841 vppcom_worker_index_set (int index)
3843 vcl_set_worker_index (index);
3847 vppcom_worker_index (void)
3849 return vcl_get_worker_index ();
3853 vppcom_worker_mqs_epfd (void)
3855 vcl_worker_t *wrk = vcl_worker_get_current ();
3856 if (!vcm->cfg.use_mq_eventfd)
3858 return wrk->mqs_epfd;
3862 vppcom_session_is_connectable_listener (uint32_t session_handle)
3864 vcl_session_t *session;
3865 vcl_worker_t *wrk = vcl_worker_get_current ();
3866 session = vcl_session_get_w_handle (wrk, session_handle);
3868 return VPPCOM_EBADFD;
3869 return vcl_session_is_connectable_listener (wrk, session);
3873 vppcom_session_listener (uint32_t session_handle)
3875 vcl_worker_t *wrk = vcl_worker_get_current ();
3876 vcl_session_t *listen_session, *session;
3877 session = vcl_session_get_w_handle (wrk, session_handle);
3879 return VPPCOM_EBADFD;
3880 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3881 return VPPCOM_EBADFD;
3882 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3883 if (!listen_session)
3884 return VPPCOM_EBADFD;
3885 return vcl_session_handle (listen_session);
3889 vppcom_session_n_accepted (uint32_t session_handle)
3891 vcl_worker_t *wrk = vcl_worker_get_current ();
3892 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3894 return VPPCOM_EBADFD;
3895 return session->n_accepted_sessions;
3899 vppcom_proto_str (vppcom_proto_t proto)
3901 char const *proto_str;
3905 case VPPCOM_PROTO_TCP:
3908 case VPPCOM_PROTO_UDP:
3911 case VPPCOM_PROTO_TLS:
3914 case VPPCOM_PROTO_QUIC:
3918 proto_str = "UNKNOWN";
3925 vppcom_retval_str (int retval)
3936 st = "VPPCOM_EAGAIN";
3940 st = "VPPCOM_EFAULT";
3944 st = "VPPCOM_ENOMEM";
3948 st = "VPPCOM_EINVAL";
3952 st = "VPPCOM_EBADFD";
3955 case VPPCOM_EAFNOSUPPORT:
3956 st = "VPPCOM_EAFNOSUPPORT";
3959 case VPPCOM_ECONNABORTED:
3960 st = "VPPCOM_ECONNABORTED";
3963 case VPPCOM_ECONNRESET:
3964 st = "VPPCOM_ECONNRESET";
3967 case VPPCOM_ENOTCONN:
3968 st = "VPPCOM_ENOTCONN";
3971 case VPPCOM_ECONNREFUSED:
3972 st = "VPPCOM_ECONNREFUSED";
3975 case VPPCOM_ETIMEDOUT:
3976 st = "VPPCOM_ETIMEDOUT";
3980 st = "UNKNOWN_STATE";
3988 * fd.io coding-style-patch-verification: ON
3991 * eval: (c-set-style "gnu")