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 || session->session_state == VCL_STATE_DISCONNECT)
790 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
791 1 /* do_disconnect */ );
792 /* Move to undetermined state to ensure that the session is not
793 * removed before both vpp and the app cleanup.
794 * - If the app closes first, the session is moved to CLOSED state
795 * and the session cleanup notification from vpp removes the
797 * - If vpp cleans up the session first, the session is moved to
798 * DETACHED state lower and subsequently the close from the app
801 session->session_state = VCL_STATE_UPDATED;
806 vcl_session_table_del_vpp_handle (wrk, msg->handle);
807 /* Should not happen. App did not close the connection so don't free it. */
808 if (session->session_state != VCL_STATE_CLOSED)
810 VDBG (0, "app did not close session %d", session->session_index);
811 session->session_state = VCL_STATE_DETACHED;
812 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
815 vcl_session_free (wrk, session);
819 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
821 session_req_worker_update_msg_t *msg;
824 msg = (session_req_worker_update_msg_t *) data;
825 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
829 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
833 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
835 session_worker_update_reply_msg_t *msg;
838 msg = (session_worker_update_reply_msg_t *) data;
839 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
842 VDBG (0, "unknown handle 0x%llx", msg->handle);
845 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
847 clib_warning ("segment for session %u is not mounted!",
854 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
855 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
856 s->rx_fifo->client_session_index = s->session_index;
857 s->tx_fifo->client_session_index = s->session_index;
858 s->rx_fifo->client_thread_index = wrk->wrk_index;
859 s->tx_fifo->client_thread_index = wrk->wrk_index;
861 s->session_state = VCL_STATE_UPDATED;
863 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
864 s->vpp_handle, wrk->wrk_index);
868 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
871 if (vcm->cfg.vpp_app_socket_api)
872 return vcl_sapi_recv_fds (wrk, fds, n_fds);
874 return vcl_bapi_recv_fds (wrk, fds, n_fds);
878 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
880 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
881 session_app_add_segment_msg_t *msg;
885 msg = (session_app_add_segment_msg_t *) data;
889 vcl_api_recv_fd (wrk, &fd, 1);
890 seg_type = SSVM_SEGMENT_MEMFD;
893 segment_handle = msg->segment_handle;
894 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
896 clib_warning ("invalid segment handle");
900 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
903 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
907 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
912 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
914 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
915 vcl_segment_detach (msg->segment_handle);
916 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
920 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
922 if (!vcm->wrk_rpc_fn)
925 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
929 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
931 session_disconnected_msg_t *disconnected_msg;
934 switch (e->event_type)
936 case SESSION_IO_EVT_RX:
937 case SESSION_IO_EVT_TX:
938 s = vcl_session_get (wrk, e->session_index);
939 if (!s || !vcl_session_is_open (s))
941 vec_add1 (wrk->unhandled_evts_vector, *e);
943 case SESSION_CTRL_EVT_ACCEPTED:
944 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
946 case SESSION_CTRL_EVT_CONNECTED:
947 vcl_session_connected_handler (wrk,
948 (session_connected_msg_t *) e->data);
950 case SESSION_CTRL_EVT_DISCONNECTED:
951 disconnected_msg = (session_disconnected_msg_t *) e->data;
952 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
955 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
958 case SESSION_CTRL_EVT_RESET:
959 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
961 case SESSION_CTRL_EVT_BOUND:
962 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
964 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
965 vcl_session_unlisten_reply_handler (wrk, e->data);
967 case SESSION_CTRL_EVT_MIGRATED:
968 vcl_session_migrated_handler (wrk, e->data);
970 case SESSION_CTRL_EVT_CLEANUP:
971 vcl_session_cleanup_handler (wrk, e->data);
973 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
974 vcl_session_req_worker_update_handler (wrk, e->data);
976 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
977 vcl_session_worker_update_reply_handler (wrk, e->data);
979 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
980 vcl_session_app_add_segment_handler (wrk, e->data);
982 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
983 vcl_session_app_del_segment_handler (wrk, e->data);
985 case SESSION_CTRL_EVT_APP_WRK_RPC:
986 vcl_worker_rpc_handler (wrk, e->data);
989 clib_warning ("unhandled %u", e->event_type);
995 vppcom_wait_for_session_state_change (u32 session_index,
996 vcl_session_state_t state,
999 vcl_worker_t *wrk = vcl_worker_get_current ();
1000 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1001 vcl_session_t *volatile session;
1002 svm_msg_q_msg_t msg;
1007 session = vcl_session_get (wrk, session_index);
1008 if (PREDICT_FALSE (!session))
1010 return VPPCOM_EBADFD;
1012 if (session->session_state == state)
1016 if (session->session_state == VCL_STATE_DETACHED)
1018 return VPPCOM_ECONNREFUSED;
1021 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1026 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1027 vcl_handle_mq_event (wrk, e);
1028 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1030 while (clib_time_now (&wrk->clib_time) < timeout);
1032 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1033 vppcom_session_state_str (state));
1034 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1036 return VPPCOM_ETIMEDOUT;
1040 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1042 vcl_session_state_t state;
1046 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1049 vec_foreach (sip, wrk->pending_session_wrk_updates)
1051 s = vcl_session_get (wrk, *sip);
1052 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1053 state = s->session_state;
1054 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1056 s->session_state = state;
1058 vec_reset_length (wrk->pending_session_wrk_updates);
1062 vcl_flush_mq_events (void)
1064 vcl_worker_t *wrk = vcl_worker_get_current ();
1065 svm_msg_q_msg_t *msg;
1070 mq = wrk->app_event_queue;
1071 svm_msg_q_lock (mq);
1072 vcl_mq_dequeue_batch (wrk, mq, ~0);
1073 svm_msg_q_unlock (mq);
1075 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1077 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1078 e = svm_msg_q_msg_data (mq, msg);
1079 vcl_handle_mq_event (wrk, e);
1080 svm_msg_q_free_msg (mq, msg);
1082 vec_reset_length (wrk->mq_msg_vector);
1083 vcl_handle_pending_wrk_updates (wrk);
1087 vppcom_session_unbind (u32 session_handle)
1089 vcl_worker_t *wrk = vcl_worker_get_current ();
1090 session_accepted_msg_t *accepted_msg;
1091 vcl_session_t *session = 0;
1092 vcl_session_msg_t *evt;
1094 session = vcl_session_get_w_handle (wrk, session_handle);
1096 return VPPCOM_EBADFD;
1098 /* Flush pending accept events, if any */
1099 while (clib_fifo_elts (session->accept_evts_fifo))
1101 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1102 accepted_msg = &evt->accepted_msg;
1103 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1104 vcl_send_session_accepted_reply (session->vpp_evt_q,
1105 accepted_msg->context,
1106 session->vpp_handle, -1);
1108 clib_fifo_free (session->accept_evts_fifo);
1110 vcl_send_session_unlisten (wrk, session);
1112 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1113 session->vpp_handle);
1114 vcl_evt (VCL_EVT_UNBIND, session);
1116 session->vpp_handle = ~0;
1117 session->session_state = VCL_STATE_DISCONNECT;
1123 vppcom_session_disconnect (u32 session_handle)
1125 vcl_worker_t *wrk = vcl_worker_get_current ();
1126 svm_msg_q_t *vpp_evt_q;
1127 vcl_session_t *session, *listen_session;
1128 vcl_session_state_t state;
1131 session = vcl_session_get_w_handle (wrk, session_handle);
1133 return VPPCOM_EBADFD;
1135 vpp_handle = session->vpp_handle;
1136 state = session->session_state;
1138 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1139 vpp_handle, state, vppcom_session_state_str (state));
1141 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
1143 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1144 return VPPCOM_EBADFD;
1147 if (state == VCL_STATE_VPP_CLOSING)
1149 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1150 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->api_client_handle,
1152 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1153 session->session_index, vpp_handle);
1157 /* Session doesn't have an event queue yet. Probably a non-blocking
1158 * connect. Wait for the reply */
1159 if (PREDICT_FALSE (!session->vpp_evt_q))
1162 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1163 session->session_index, vpp_handle);
1164 vcl_send_session_disconnect (wrk, session);
1167 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1169 listen_session = vcl_session_get (wrk, session->listener_index);
1170 listen_session->n_accepted_sessions--;
1179 * Notify vpp of the disconnect and mark the worker as free. If we're the
1180 * last worker, do a full cleanup otherwise, since we're probably a forked
1181 * child, avoid syscalls as much as possible. We might've lost privileges.
1184 vppcom_app_exit (void)
1186 if (!pool_elts (vcm->workers))
1188 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1189 vcl_set_worker_index (~0);
1190 vcl_elog_stop (vcm);
1194 vcl_api_attach (void)
1196 if (vcm->cfg.vpp_app_socket_api)
1197 return vcl_sapi_attach ();
1199 return vcl_bapi_attach ();
1203 vcl_api_detach (vcl_worker_t * wrk)
1205 vcl_send_app_detach (wrk);
1207 if (vcm->cfg.vpp_app_socket_api)
1208 return vcl_sapi_detach (wrk);
1210 return vcl_bapi_disconnect_from_vpp ();
1214 * VPPCOM Public API functions
1217 vppcom_app_create (const char *app_name)
1219 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1224 VDBG (1, "already initialized");
1225 return VPPCOM_EEXIST;
1229 vppcom_cfg (&vcm->cfg);
1230 vcl_cfg = &vcm->cfg;
1232 vcm->main_cpu = pthread_self ();
1233 vcm->main_pid = getpid ();
1234 vcm->app_name = format (0, "%s", app_name);
1235 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1236 20 /* timeout in secs */ );
1237 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1238 clib_spinlock_init (&vcm->workers_lock);
1239 clib_rwlock_init (&vcm->segment_table_lock);
1240 atexit (vppcom_app_exit);
1241 vcl_elog_init (vcm);
1243 /* Allocate default worker */
1244 vcl_worker_alloc_and_init ();
1246 if ((rv = vcl_api_attach ()))
1249 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1250 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1256 vppcom_app_destroy (void)
1258 vcl_worker_t *wrk, *current_wrk;
1261 if (!pool_elts (vcm->workers))
1264 vcl_evt (VCL_EVT_DETACH, vcm);
1266 current_wrk = vcl_worker_get_current ();
1269 pool_foreach (wrk, vcm->workers, ({
1270 if (current_wrk != wrk)
1271 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1275 vcl_api_detach (current_wrk);
1276 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1278 vcl_elog_stop (vcm);
1281 * Free the heap and fix vcm
1283 heap = clib_mem_get_heap ();
1284 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1286 vcm = &_vppcom_main;
1291 vppcom_session_create (u8 proto, u8 is_nonblocking)
1293 vcl_worker_t *wrk = vcl_worker_get_current ();
1294 vcl_session_t *session;
1296 session = vcl_session_alloc (wrk);
1298 session->session_type = proto;
1299 session->session_state = VCL_STATE_CLOSED;
1300 session->vpp_handle = ~0;
1301 session->is_dgram = vcl_proto_is_dgram (proto);
1304 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1306 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1307 is_nonblocking, session_index);
1309 VDBG (0, "created session %u", session->session_index);
1311 return vcl_session_handle (session);
1315 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1316 vcl_session_handle_t sh, u8 do_disconnect)
1320 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1322 if (s->flags & VCL_SESSION_F_IS_VEP)
1324 u32 next_sh = s->vep.next_sh;
1325 while (next_sh != ~0)
1327 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1328 if (PREDICT_FALSE (rv < 0))
1329 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1330 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1331 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1332 next_sh = s->vep.next_sh;
1337 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1339 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1341 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1342 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1343 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1348 VDBG (1, "session %u [0x%llx] disconnect skipped",
1349 s->session_index, s->vpp_handle);
1353 if (s->session_state == VCL_STATE_LISTEN)
1355 rv = vppcom_session_unbind (sh);
1356 if (PREDICT_FALSE (rv < 0))
1357 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1358 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1359 vppcom_retval_str (rv));
1362 else if (vcl_session_is_ready (s)
1363 || (vcl_session_is_connectable_listener (wrk, s)))
1365 rv = vppcom_session_disconnect (sh);
1366 if (PREDICT_FALSE (rv < 0))
1367 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1368 " rv %d (%s)", s->session_index, s->vpp_handle,
1369 rv, vppcom_retval_str (rv));
1371 else if (s->session_state == VCL_STATE_DISCONNECT)
1373 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, s);
1374 vcl_send_session_reset_reply (mq, wrk->api_client_handle,
1377 else if (s->session_state == VCL_STATE_DETACHED)
1379 /* Should not happen. VPP cleaned up before app confirmed close */
1380 VDBG (0, "vpp freed session %d before close", s->session_index);
1384 s->session_state = VCL_STATE_CLOSED;
1386 /* Session is removed only after vpp confirms the disconnect */
1390 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1392 vcl_session_free (wrk, s);
1393 vcl_evt (VCL_EVT_CLOSE, s, rv);
1399 vppcom_session_close (uint32_t session_handle)
1401 vcl_worker_t *wrk = vcl_worker_get_current ();
1402 vcl_session_t *session;
1404 session = vcl_session_get_w_handle (wrk, session_handle);
1406 return VPPCOM_EBADFD;
1407 return vcl_session_cleanup (wrk, session, session_handle,
1408 1 /* do_disconnect */ );
1412 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1414 vcl_worker_t *wrk = vcl_worker_get_current ();
1415 vcl_session_t *session = 0;
1418 return VPPCOM_EINVAL;
1420 session = vcl_session_get_w_handle (wrk, session_handle);
1422 return VPPCOM_EBADFD;
1424 if (session->flags & VCL_SESSION_F_IS_VEP)
1426 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1427 session->session_index);
1428 return VPPCOM_EBADFD;
1431 session->transport.is_ip4 = ep->is_ip4;
1433 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1434 sizeof (ip4_address_t));
1436 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1437 sizeof (ip6_address_t));
1438 session->transport.lcl_port = ep->port;
1440 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1441 "proto %s", session->session_index, session_handle,
1442 session->transport.is_ip4 ? "IPv4" : "IPv6",
1443 format_ip46_address, &session->transport.lcl_ip,
1444 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1445 clib_net_to_host_u16 (session->transport.lcl_port),
1446 vppcom_proto_str (session->session_type));
1447 vcl_evt (VCL_EVT_BIND, session);
1449 if (session->session_type == VPPCOM_PROTO_UDP)
1450 vppcom_session_listen (session_handle, 10);
1456 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1458 vcl_worker_t *wrk = vcl_worker_get_current ();
1459 vcl_session_t *listen_session = 0;
1460 u64 listen_vpp_handle;
1463 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1464 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1465 return VPPCOM_EBADFD;
1467 if (q_len == 0 || q_len == ~0)
1468 q_len = vcm->cfg.listen_queue_size;
1470 listen_vpp_handle = listen_session->vpp_handle;
1471 if (listen_session->session_state == VCL_STATE_LISTEN)
1473 VDBG (0, "session %u [0x%llx]: already in listen state!",
1474 listen_sh, listen_vpp_handle);
1478 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1481 * Send listen request to vpp and wait for reply
1483 vcl_send_session_listen (wrk, listen_session);
1484 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1486 vcm->cfg.session_timeout);
1488 if (PREDICT_FALSE (rv))
1490 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1491 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1492 listen_sh, listen_session->vpp_handle, rv,
1493 vppcom_retval_str (rv));
1501 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1503 if (ls->flags & VCL_SESSION_F_IS_VEP)
1505 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1507 return VPPCOM_EBADFD;
1510 if ((ls->session_state != VCL_STATE_LISTEN)
1511 && (!vcl_session_is_connectable_listener (wrk, ls)))
1513 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1514 " (%s)", ls->vpp_handle, ls->session_state,
1515 vppcom_session_state_str (ls->session_state));
1516 return VPPCOM_EBADFD;
1522 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1524 if (!strcmp (proto_str, "TCP"))
1525 *proto = VPPCOM_PROTO_TCP;
1526 else if (!strcmp (proto_str, "tcp"))
1527 *proto = VPPCOM_PROTO_TCP;
1528 else if (!strcmp (proto_str, "UDP"))
1529 *proto = VPPCOM_PROTO_UDP;
1530 else if (!strcmp (proto_str, "udp"))
1531 *proto = VPPCOM_PROTO_UDP;
1532 else if (!strcmp (proto_str, "TLS"))
1533 *proto = VPPCOM_PROTO_TLS;
1534 else if (!strcmp (proto_str, "tls"))
1535 *proto = VPPCOM_PROTO_TLS;
1536 else if (!strcmp (proto_str, "QUIC"))
1537 *proto = VPPCOM_PROTO_QUIC;
1538 else if (!strcmp (proto_str, "quic"))
1539 *proto = VPPCOM_PROTO_QUIC;
1546 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1549 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1550 vcl_worker_t *wrk = vcl_worker_get_current ();
1551 session_accepted_msg_t accepted_msg;
1552 vcl_session_t *listen_session = 0;
1553 vcl_session_t *client_session = 0;
1554 vcl_session_msg_t *evt;
1555 svm_msg_q_msg_t msg;
1560 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1561 if (!listen_session)
1562 return VPPCOM_EBADFD;
1564 listen_session_index = listen_session->session_index;
1565 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1568 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1570 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1571 accept_flags = evt->flags;
1572 accepted_msg = evt->accepted_msg;
1576 is_nonblocking = vcl_session_has_attr (listen_session,
1577 VCL_SESS_ATTR_NONBLOCK);
1580 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1581 return VPPCOM_EAGAIN;
1583 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1584 return VPPCOM_EAGAIN;
1586 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1587 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1589 vcl_handle_mq_event (wrk, e);
1590 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1593 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1594 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1600 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1601 listen_session_index);
1602 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1603 return VPPCOM_ECONNABORTED;
1605 listen_session = vcl_session_get (wrk, listen_session_index);
1606 client_session = vcl_session_get (wrk, client_session_index);
1608 if (flags & O_NONBLOCK)
1609 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1611 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1612 " flags %d, is_nonblocking %u", listen_session->session_index,
1613 listen_session->vpp_handle, client_session_index,
1614 client_session->vpp_handle, flags,
1615 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1619 ep->is_ip4 = client_session->transport.is_ip4;
1620 ep->port = client_session->transport.rmt_port;
1621 if (client_session->transport.is_ip4)
1622 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1623 sizeof (ip4_address_t));
1625 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1626 sizeof (ip6_address_t));
1629 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1630 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1631 client_session_index, client_session->vpp_handle,
1632 format_ip46_address, &client_session->transport.rmt_ip,
1633 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1634 clib_net_to_host_u16 (client_session->transport.rmt_port),
1635 format_ip46_address, &client_session->transport.lcl_ip,
1636 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1637 clib_net_to_host_u16 (client_session->transport.lcl_port));
1638 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1639 client_session_index);
1642 * Session might have been closed already
1646 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1647 client_session->session_state = VCL_STATE_VPP_CLOSING;
1648 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1649 client_session->session_state = VCL_STATE_DISCONNECT;
1651 return vcl_session_handle (client_session);
1655 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1657 vcl_worker_t *wrk = vcl_worker_get_current ();
1658 vcl_session_t *session = 0;
1662 session = vcl_session_get_w_handle (wrk, session_handle);
1664 return VPPCOM_EBADFD;
1665 session_index = session->session_index;
1667 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1669 VDBG (0, "ERROR: cannot connect epoll session %u!",
1670 session->session_index);
1671 return VPPCOM_EBADFD;
1674 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1676 VDBG (0, "session handle %u [0x%llx]: session already "
1677 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1678 session_handle, session->vpp_handle,
1679 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1680 &session->transport.rmt_ip, session->transport.is_ip4 ?
1681 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1682 clib_net_to_host_u16 (session->transport.rmt_port),
1683 vppcom_proto_str (session->session_type), session->session_state,
1684 vppcom_session_state_str (session->session_state));
1688 /* Attempt to connect a connectionless listener */
1689 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1691 if (session->session_type != VPPCOM_PROTO_UDP)
1692 return VPPCOM_EINVAL;
1693 vcl_send_session_unlisten (wrk, session);
1694 session->session_state = VCL_STATE_CLOSED;
1697 session->transport.is_ip4 = server_ep->is_ip4;
1698 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1699 session->transport.rmt_port = server_ep->port;
1700 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1701 session->flags |= VCL_SESSION_F_CONNECTED;
1703 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1704 "port %d proto %s", session_handle,
1705 vppcom_session_state_str (session->session_state),
1706 session->transport.is_ip4 ? "IPv4" : "IPv6",
1707 format_ip46_address,
1708 &session->transport.rmt_ip, session->transport.is_ip4 ?
1709 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1710 clib_net_to_host_u16 (session->transport.rmt_port),
1711 vppcom_proto_str (session->session_type));
1713 vcl_send_session_connect (wrk, session);
1715 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1717 /* State set to STATE_UPDATED to ensure the session is not assumed
1718 * to be ready and to also allow the app to close it prior to vpp's
1719 * connected reply. */
1720 session->session_state = VCL_STATE_UPDATED;
1721 return VPPCOM_EINPROGRESS;
1725 * Wait for reply from vpp if blocking
1727 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1728 vcm->cfg.session_timeout);
1730 session = vcl_session_get (wrk, session_index);
1731 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1732 session->vpp_handle, rv ? "failed" : "succeeded");
1738 vppcom_session_stream_connect (uint32_t session_handle,
1739 uint32_t parent_session_handle)
1741 vcl_worker_t *wrk = vcl_worker_get_current ();
1742 vcl_session_t *session, *parent_session;
1743 u32 session_index, parent_session_index;
1746 session = vcl_session_get_w_handle (wrk, session_handle);
1748 return VPPCOM_EBADFD;
1749 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1750 if (!parent_session)
1751 return VPPCOM_EBADFD;
1753 session_index = session->session_index;
1754 parent_session_index = parent_session->session_index;
1755 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1757 VDBG (0, "ERROR: cannot connect epoll session %u!",
1758 session->session_index);
1759 return VPPCOM_EBADFD;
1762 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1764 VDBG (0, "session handle %u [0x%llx]: session already "
1765 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1766 session_handle, session->vpp_handle,
1767 parent_session_handle, parent_session->vpp_handle,
1768 vppcom_proto_str (session->session_type), session->session_state,
1769 vppcom_session_state_str (session->session_state));
1773 /* Connect to quic session specifics */
1774 session->transport.is_ip4 = parent_session->transport.is_ip4;
1775 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1776 session->transport.rmt_port = 0;
1777 session->parent_handle = parent_session->vpp_handle;
1779 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1780 session_handle, parent_session_handle, parent_session->vpp_handle);
1783 * Send connect request and wait for reply from vpp
1785 vcl_send_session_connect (wrk, session);
1786 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1787 vcm->cfg.session_timeout);
1789 session->listener_index = parent_session_index;
1790 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1792 parent_session->n_accepted_sessions++;
1794 session = vcl_session_get (wrk, session_index);
1795 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1796 session->vpp_handle, rv ? "failed" : "succeeded");
1802 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1804 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1808 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1811 vcl_worker_t *wrk = vcl_worker_get_current ();
1812 int rv, n_read = 0, is_nonblocking;
1813 vcl_session_t *s = 0;
1814 svm_fifo_t *rx_fifo;
1815 svm_msg_q_msg_t msg;
1820 if (PREDICT_FALSE (!buf))
1821 return VPPCOM_EINVAL;
1823 s = vcl_session_get_w_handle (wrk, session_handle);
1824 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1825 return VPPCOM_EBADFD;
1827 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1829 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1830 s->session_index, s->vpp_handle, s->session_state,
1831 vppcom_session_state_str (s->session_state));
1832 return vcl_session_closed_error (s);
1835 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1836 is_ct = vcl_session_is_ct (s);
1837 mq = wrk->app_event_queue;
1838 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1839 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1841 if (svm_fifo_is_empty_cons (rx_fifo))
1845 if (vcl_session_is_closing (s))
1846 return vcl_session_closing_error (s);
1847 svm_fifo_unset_event (s->rx_fifo);
1848 return VPPCOM_EWOULDBLOCK;
1850 while (svm_fifo_is_empty_cons (rx_fifo))
1852 if (vcl_session_is_closing (s))
1853 return vcl_session_closing_error (s);
1855 svm_fifo_unset_event (s->rx_fifo);
1856 svm_msg_q_lock (mq);
1857 if (svm_msg_q_is_empty (mq))
1858 svm_msg_q_wait (mq);
1860 svm_msg_q_sub_w_lock (mq, &msg);
1861 e = svm_msg_q_msg_data (mq, &msg);
1862 svm_msg_q_unlock (mq);
1863 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1864 vcl_handle_mq_event (wrk, e);
1865 svm_msg_q_free_msg (mq, &msg);
1872 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1874 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1879 if (svm_fifo_is_empty_cons (rx_fifo))
1881 svm_fifo_unset_event (s->rx_fifo);
1882 if (!svm_fifo_is_empty_cons (rx_fifo)
1883 && svm_fifo_set_event (s->rx_fifo) && is_nonblocking)
1885 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1886 e->event_type = SESSION_IO_EVT_RX;
1887 e->session_index = s->session_index;
1890 else if (PREDICT_FALSE (rv < n))
1892 /* More data enqueued while reading. Try to drain it
1893 * or fill the buffer */
1899 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1901 svm_fifo_clear_deq_ntf (rx_fifo);
1902 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1903 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1906 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1907 s->vpp_handle, n_read, rx_fifo);
1913 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1915 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1919 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1921 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1925 vppcom_session_read_segments (uint32_t session_handle,
1926 vppcom_data_segment_t * ds, uint32_t n_segments,
1929 vcl_worker_t *wrk = vcl_worker_get_current ();
1930 int n_read = 0, is_nonblocking;
1931 vcl_session_t *s = 0;
1932 svm_fifo_t *rx_fifo;
1933 svm_msg_q_msg_t msg;
1938 s = vcl_session_get_w_handle (wrk, session_handle);
1939 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1940 return VPPCOM_EBADFD;
1942 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1943 return vcl_session_closed_error (s);
1945 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1946 is_ct = vcl_session_is_ct (s);
1947 mq = wrk->app_event_queue;
1948 rx_fifo = s->rx_fifo;
1949 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1952 svm_fifo_unset_event (s->rx_fifo);
1954 if (svm_fifo_is_empty_cons (rx_fifo))
1958 svm_fifo_unset_event (rx_fifo);
1959 return VPPCOM_EWOULDBLOCK;
1961 while (svm_fifo_is_empty_cons (rx_fifo))
1963 if (vcl_session_is_closing (s))
1964 return vcl_session_closing_error (s);
1966 svm_fifo_unset_event (rx_fifo);
1967 svm_msg_q_lock (mq);
1968 if (svm_msg_q_is_empty (mq))
1969 svm_msg_q_wait (mq);
1971 svm_msg_q_sub_w_lock (mq, &msg);
1972 e = svm_msg_q_msg_data (mq, &msg);
1973 svm_msg_q_unlock (mq);
1974 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1975 vcl_handle_mq_event (wrk, e);
1976 svm_msg_q_free_msg (mq, &msg);
1980 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1981 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1983 return VPPCOM_EAGAIN;
1985 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1987 svm_fifo_unset_event (s->rx_fifo);
1988 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1989 && svm_fifo_set_event (s->rx_fifo)
1990 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1993 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1994 e->event_type = SESSION_IO_EVT_RX;
1995 e->session_index = s->session_index;
1999 s->rx_bytes_pending += n_read;
2004 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2006 vcl_worker_t *wrk = vcl_worker_get_current ();
2009 s = vcl_session_get_w_handle (wrk, session_handle);
2010 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2013 svm_fifo_dequeue_drop (s->rx_fifo, n_bytes);
2015 ASSERT (s->rx_bytes_pending < n_bytes);
2016 s->rx_bytes_pending -= n_bytes;
2020 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2022 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2026 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2028 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2030 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2036 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2037 size_t n, u8 is_flush, u8 is_dgram)
2039 int n_write, is_nonblocking;
2040 session_evt_type_t et;
2041 svm_msg_q_msg_t msg;
2042 svm_fifo_t *tx_fifo;
2047 if (PREDICT_FALSE (!buf || n == 0))
2048 return VPPCOM_EINVAL;
2050 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2052 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2053 " session!", s->session_index, s->vpp_handle);
2054 return VPPCOM_EBADFD;
2057 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2059 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2060 s->session_index, s->vpp_handle, s->session_state,
2061 vppcom_session_state_str (s->session_state));
2062 return vcl_session_closed_error (s);;
2065 is_ct = vcl_session_is_ct (s);
2066 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2067 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2069 mq = wrk->app_event_queue;
2070 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2074 return VPPCOM_EWOULDBLOCK;
2076 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2078 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2079 if (vcl_session_is_closing (s))
2080 return vcl_session_closing_error (s);
2081 svm_msg_q_lock (mq);
2082 if (svm_msg_q_is_empty (mq))
2083 svm_msg_q_wait (mq);
2085 svm_msg_q_sub_w_lock (mq, &msg);
2086 e = svm_msg_q_msg_data (mq, &msg);
2087 svm_msg_q_unlock (mq);
2089 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2090 vcl_handle_mq_event (wrk, e);
2091 svm_msg_q_free_msg (mq, &msg);
2095 et = SESSION_IO_EVT_TX;
2096 if (is_flush && !is_ct)
2097 et = SESSION_IO_EVT_TX_FLUSH;
2100 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2101 s->vpp_evt_q, buf, n, et,
2102 0 /* do_evt */ , SVM_Q_WAIT);
2104 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2105 0 /* do_evt */ , SVM_Q_WAIT);
2107 if (svm_fifo_set_event (s->tx_fifo))
2108 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2111 /* The underlying fifo segment can run out of memory */
2112 if (PREDICT_FALSE (n_write < 0))
2113 return VPPCOM_EAGAIN;
2115 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2116 s->vpp_handle, n_write);
2122 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2124 vcl_worker_t *wrk = vcl_worker_get_current ();
2127 s = vcl_session_get_w_handle (wrk, session_handle);
2128 if (PREDICT_FALSE (!s))
2129 return VPPCOM_EBADFD;
2131 return vppcom_session_write_inline (wrk, s, buf, n,
2132 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2136 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2138 vcl_worker_t *wrk = vcl_worker_get_current ();
2141 s = vcl_session_get_w_handle (wrk, session_handle);
2142 if (PREDICT_FALSE (!s))
2143 return VPPCOM_EBADFD;
2145 return vppcom_session_write_inline (wrk, s, buf, n,
2146 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2149 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2150 if (PREDICT_FALSE (!_s->rx_fifo)) \
2152 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2154 if (!vcl_session_is_ct (_s)) \
2156 svm_fifo_unset_event (_s->rx_fifo); \
2157 if (svm_fifo_is_empty (_s->rx_fifo)) \
2160 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2162 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2163 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2169 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2170 unsigned long n_bits, unsigned long *read_map,
2171 unsigned long *write_map,
2172 unsigned long *except_map, u32 * bits_set)
2174 session_disconnected_msg_t *disconnected_msg;
2175 session_connected_msg_t *connected_msg;
2176 vcl_session_t *session;
2179 switch (e->event_type)
2181 case SESSION_IO_EVT_RX:
2182 sid = e->session_index;
2183 session = vcl_session_get (wrk, sid);
2184 if (!session || !vcl_session_is_open (session))
2186 vcl_fifo_rx_evt_valid_or_break (session);
2187 if (sid < n_bits && read_map)
2189 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2193 case SESSION_IO_EVT_TX:
2194 sid = e->session_index;
2195 session = vcl_session_get (wrk, sid);
2196 if (!session || !vcl_session_is_open (session))
2198 if (sid < n_bits && write_map)
2200 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2204 case SESSION_CTRL_EVT_ACCEPTED:
2205 session = vcl_session_accepted (wrk,
2206 (session_accepted_msg_t *) e->data);
2209 sid = session->session_index;
2210 if (sid < n_bits && read_map)
2212 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2216 case SESSION_CTRL_EVT_CONNECTED:
2217 connected_msg = (session_connected_msg_t *) e->data;
2218 sid = vcl_session_connected_handler (wrk, connected_msg);
2219 if (sid == VCL_INVALID_SESSION_INDEX)
2221 if (sid < n_bits && write_map)
2223 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2227 case SESSION_CTRL_EVT_DISCONNECTED:
2228 disconnected_msg = (session_disconnected_msg_t *) e->data;
2229 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2232 sid = session->session_index;
2233 if (sid < n_bits && except_map)
2235 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2239 case SESSION_CTRL_EVT_RESET:
2240 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2241 if (sid < n_bits && except_map)
2243 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2247 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2248 vcl_session_unlisten_reply_handler (wrk, e->data);
2250 case SESSION_CTRL_EVT_MIGRATED:
2251 vcl_session_migrated_handler (wrk, e->data);
2253 case SESSION_CTRL_EVT_CLEANUP:
2254 vcl_session_cleanup_handler (wrk, e->data);
2256 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2257 vcl_session_worker_update_reply_handler (wrk, e->data);
2259 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2260 vcl_session_req_worker_update_handler (wrk, e->data);
2262 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2263 vcl_session_app_add_segment_handler (wrk, e->data);
2265 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2266 vcl_session_app_del_segment_handler (wrk, e->data);
2268 case SESSION_CTRL_EVT_APP_WRK_RPC:
2269 vcl_worker_rpc_handler (wrk, e->data);
2272 clib_warning ("unhandled: %u", e->event_type);
2278 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2279 unsigned long n_bits, unsigned long *read_map,
2280 unsigned long *write_map, unsigned long *except_map,
2281 double time_to_wait, u32 * bits_set)
2283 svm_msg_q_msg_t *msg;
2287 svm_msg_q_lock (mq);
2288 if (svm_msg_q_is_empty (mq))
2292 svm_msg_q_unlock (mq);
2298 svm_msg_q_unlock (mq);
2301 else if (time_to_wait < 0)
2303 svm_msg_q_wait (mq);
2307 if (svm_msg_q_timedwait (mq, time_to_wait))
2309 svm_msg_q_unlock (mq);
2314 vcl_mq_dequeue_batch (wrk, mq, ~0);
2315 svm_msg_q_unlock (mq);
2317 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2319 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2320 e = svm_msg_q_msg_data (mq, msg);
2321 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2322 except_map, bits_set);
2323 svm_msg_q_free_msg (mq, msg);
2325 vec_reset_length (wrk->mq_msg_vector);
2326 vcl_handle_pending_wrk_updates (wrk);
2331 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2332 vcl_si_set * read_map, vcl_si_set * write_map,
2333 vcl_si_set * except_map, double time_to_wait,
2336 double wait = 0, start = 0;
2340 wait = time_to_wait;
2341 start = clib_time_now (&wrk->clib_time);
2346 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2347 write_map, except_map, wait, bits_set);
2353 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2361 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2362 vcl_si_set * read_map, vcl_si_set * write_map,
2363 vcl_si_set * except_map, double time_to_wait,
2366 vcl_mq_evt_conn_t *mqc;
2367 int __clib_unused n_read;
2371 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2372 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2373 vec_len (wrk->mq_events), time_to_wait);
2374 for (i = 0; i < n_mq_evts; i++)
2376 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2377 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2378 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2379 except_map, 0, bits_set);
2382 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2386 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2387 vcl_si_set * except_map, double time_to_wait)
2389 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2390 vcl_worker_t *wrk = vcl_worker_get_current ();
2391 vcl_session_t *session = 0;
2394 if (n_bits && read_map)
2396 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2397 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2398 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2399 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2401 if (n_bits && write_map)
2403 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2404 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2405 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2406 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2408 if (n_bits && except_map)
2410 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2411 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2412 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2413 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2423 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2424 if (!(session = vcl_session_get (wrk, sid)))
2426 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2431 if (vcl_session_write_ready (session))
2433 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2437 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2444 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2445 if (!(session = vcl_session_get (wrk, sid)))
2447 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2452 if (vcl_session_read_ready (session))
2454 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2462 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2464 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2465 read_map, write_map, except_map, &bits_set);
2467 vec_reset_length (wrk->unhandled_evts_vector);
2469 if (vcm->cfg.use_mq_eventfd)
2470 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2471 time_to_wait, &bits_set);
2473 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2474 time_to_wait, &bits_set);
2480 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2482 vppcom_epoll_t *vep;
2483 u32 sh = vep_handle;
2486 if (VPPCOM_DEBUG <= 2)
2489 s = vcl_session_get_w_handle (wrk, vep_handle);
2490 if (PREDICT_FALSE (!s))
2492 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2495 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2497 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2501 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2504 " is_vep_session = %u\n"
2505 " next_sh = 0x%x (%u)\n"
2506 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2507 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2509 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2511 s = vcl_session_get_w_handle (wrk, sh);
2512 if (PREDICT_FALSE (!s))
2514 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2517 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2519 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2521 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2523 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2527 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2528 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2529 sh, s->vep.vep_sh, vep_handle);
2530 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2532 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2534 " next_sh = 0x%x (%u)\n"
2535 " prev_sh = 0x%x (%u)\n"
2536 " vep_sh = 0x%x (%u)\n"
2537 " ev.events = 0x%x\n"
2538 " ev.data.u64 = 0x%llx\n"
2541 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2542 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2543 vep->ev.data.u64, vep->et_mask);
2548 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2552 vppcom_epoll_create (void)
2554 vcl_worker_t *wrk = vcl_worker_get_current ();
2555 vcl_session_t *vep_session;
2557 vep_session = vcl_session_alloc (wrk);
2559 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2560 vep_session->vep.vep_sh = ~0;
2561 vep_session->vep.next_sh = ~0;
2562 vep_session->vep.prev_sh = ~0;
2563 vep_session->vpp_handle = ~0;
2565 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2566 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2568 return vcl_session_handle (vep_session);
2572 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2573 struct epoll_event *event)
2575 vcl_worker_t *wrk = vcl_worker_get_current ();
2576 vcl_session_t *vep_session;
2581 if (vep_handle == session_handle)
2583 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2584 return VPPCOM_EINVAL;
2587 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2588 if (PREDICT_FALSE (!vep_session))
2590 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2591 return VPPCOM_EBADFD;
2593 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2595 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2596 return VPPCOM_EINVAL;
2599 ASSERT (vep_session->vep.vep_sh == ~0);
2600 ASSERT (vep_session->vep.prev_sh == ~0);
2602 s = vcl_session_get_w_handle (wrk, session_handle);
2603 if (PREDICT_FALSE (!s))
2605 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2606 return VPPCOM_EBADFD;
2608 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2610 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2611 return VPPCOM_EINVAL;
2617 if (PREDICT_FALSE (!event))
2619 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2620 return VPPCOM_EINVAL;
2622 if (vep_session->vep.next_sh != ~0)
2624 vcl_session_t *next_session;
2625 next_session = vcl_session_get_w_handle (wrk,
2626 vep_session->vep.next_sh);
2627 if (PREDICT_FALSE (!next_session))
2629 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2630 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2631 return VPPCOM_EBADFD;
2633 ASSERT (next_session->vep.prev_sh == vep_handle);
2634 next_session->vep.prev_sh = session_handle;
2636 s->vep.next_sh = vep_session->vep.next_sh;
2637 s->vep.prev_sh = vep_handle;
2638 s->vep.vep_sh = vep_handle;
2639 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2641 s->flags &= ~VCL_SESSION_F_IS_VEP;
2642 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2643 vep_session->vep.next_sh = session_handle;
2645 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2646 if (txf && (event->events & EPOLLOUT))
2647 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2649 /* Generate EPOLLOUT if tx fifo not full */
2650 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2652 session_event_t e = { 0 };
2653 e.event_type = SESSION_IO_EVT_TX;
2654 e.session_index = s->session_index;
2655 vec_add1 (wrk->unhandled_evts_vector, e);
2657 /* Generate EPOLLIN if rx fifo has data */
2658 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2660 session_event_t e = { 0 };
2661 e.event_type = SESSION_IO_EVT_RX;
2662 e.session_index = s->session_index;
2663 vec_add1 (wrk->unhandled_evts_vector, e);
2665 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2666 vep_handle, session_handle, event->events, event->data.u64);
2667 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2671 if (PREDICT_FALSE (!event))
2673 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2677 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2679 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2683 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2685 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2686 session_handle, s->vep.vep_sh, vep_handle);
2691 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2692 if ((event->events & EPOLLOUT) &&
2693 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2695 session_event_t e = { 0 };
2696 e.event_type = SESSION_IO_EVT_TX;
2697 e.session_index = s->session_index;
2698 vec_add1 (wrk->unhandled_evts_vector, e);
2700 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2702 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2703 if (event->events & EPOLLOUT)
2704 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2706 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2707 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2708 vep_handle, session_handle, event->events, event->data.u64);
2712 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2714 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2718 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2720 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2721 session_handle, s->vep.vep_sh, vep_handle);
2726 if (s->vep.prev_sh == vep_handle)
2727 vep_session->vep.next_sh = s->vep.next_sh;
2730 vcl_session_t *prev_session;
2731 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2732 if (PREDICT_FALSE (!prev_session))
2734 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2735 s->vep.prev_sh, session_handle);
2736 return VPPCOM_EBADFD;
2738 ASSERT (prev_session->vep.next_sh == session_handle);
2739 prev_session->vep.next_sh = s->vep.next_sh;
2741 if (s->vep.next_sh != ~0)
2743 vcl_session_t *next_session;
2744 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2745 if (PREDICT_FALSE (!next_session))
2747 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2748 s->vep.next_sh, session_handle);
2749 return VPPCOM_EBADFD;
2751 ASSERT (next_session->vep.prev_sh == session_handle);
2752 next_session->vep.prev_sh = s->vep.prev_sh;
2755 memset (&s->vep, 0, sizeof (s->vep));
2756 s->vep.next_sh = ~0;
2757 s->vep.prev_sh = ~0;
2759 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2761 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2763 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2765 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2767 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2771 VDBG (0, "Invalid operation (%d)!", op);
2775 vep_verify_epoll_chain (wrk, vep_handle);
2782 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2783 struct epoll_event *events, u32 * num_ev)
2785 session_disconnected_msg_t *disconnected_msg;
2786 session_connected_msg_t *connected_msg;
2787 u32 sid = ~0, session_events;
2788 u64 session_evt_data = ~0;
2789 vcl_session_t *session;
2792 switch (e->event_type)
2794 case SESSION_IO_EVT_RX:
2795 sid = e->session_index;
2796 session = vcl_session_get (wrk, sid);
2797 if (vcl_session_is_closed (session))
2799 vcl_fifo_rx_evt_valid_or_break (session);
2800 session_events = session->vep.ev.events;
2801 if (!(EPOLLIN & session->vep.ev.events)
2802 || (session->flags & VCL_SESSION_F_HAS_RX_EVT))
2805 events[*num_ev].events |= EPOLLIN;
2806 session_evt_data = session->vep.ev.data.u64;
2807 session->flags |= VCL_SESSION_F_HAS_RX_EVT;
2809 case SESSION_IO_EVT_TX:
2810 sid = e->session_index;
2811 session = vcl_session_get (wrk, sid);
2812 if (vcl_session_is_closed (session))
2814 session_events = session->vep.ev.events;
2815 if (!(EPOLLOUT & session_events))
2818 events[*num_ev].events |= EPOLLOUT;
2819 session_evt_data = session->vep.ev.data.u64;
2820 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (session) ?
2821 session->ct_tx_fifo : session->tx_fifo);
2823 case SESSION_CTRL_EVT_ACCEPTED:
2824 session = vcl_session_accepted (wrk,
2825 (session_accepted_msg_t *) e->data);
2829 session_events = session->vep.ev.events;
2830 if (!(EPOLLIN & session_events))
2834 events[*num_ev].events |= EPOLLIN;
2835 session_evt_data = session->vep.ev.data.u64;
2837 case SESSION_CTRL_EVT_CONNECTED:
2838 connected_msg = (session_connected_msg_t *) e->data;
2839 sid = vcl_session_connected_handler (wrk, connected_msg);
2840 /* Generate EPOLLOUT because there's no connected event */
2841 session = vcl_session_get (wrk, sid);
2842 if (vcl_session_is_closed (session))
2844 session_events = session->vep.ev.events;
2845 if (!(EPOLLOUT & session_events))
2848 events[*num_ev].events |= EPOLLOUT;
2849 session_evt_data = session->vep.ev.data.u64;
2850 if (session->session_state == VCL_STATE_DETACHED)
2851 events[*num_ev].events |= EPOLLHUP;
2853 case SESSION_CTRL_EVT_DISCONNECTED:
2854 disconnected_msg = (session_disconnected_msg_t *) e->data;
2855 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2856 if (vcl_session_is_closed (session))
2858 session_events = session->vep.ev.events;
2860 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2861 session_evt_data = session->vep.ev.data.u64;
2863 case SESSION_CTRL_EVT_RESET:
2864 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2865 session = vcl_session_get (wrk, sid);
2866 if (vcl_session_is_closed (session))
2868 session_events = session->vep.ev.events;
2870 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2871 session_evt_data = session->vep.ev.data.u64;
2873 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2874 vcl_session_unlisten_reply_handler (wrk, e->data);
2876 case SESSION_CTRL_EVT_MIGRATED:
2877 vcl_session_migrated_handler (wrk, e->data);
2879 case SESSION_CTRL_EVT_CLEANUP:
2880 vcl_session_cleanup_handler (wrk, e->data);
2882 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2883 vcl_session_req_worker_update_handler (wrk, e->data);
2885 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2886 vcl_session_worker_update_reply_handler (wrk, e->data);
2888 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2889 vcl_session_app_add_segment_handler (wrk, e->data);
2891 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2892 vcl_session_app_del_segment_handler (wrk, e->data);
2894 case SESSION_CTRL_EVT_APP_WRK_RPC:
2895 vcl_worker_rpc_handler (wrk, e->data);
2898 VDBG (0, "unhandled: %u", e->event_type);
2904 events[*num_ev].data.u64 = session_evt_data;
2905 if (EPOLLONESHOT & session_events)
2907 session = vcl_session_get (wrk, sid);
2908 session->vep.ev.events = 0;
2915 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2916 struct epoll_event *events, u32 maxevents,
2917 double wait_for_time, u32 * num_ev)
2919 svm_msg_q_msg_t *msg;
2923 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2924 goto handle_dequeued;
2926 svm_msg_q_lock (mq);
2927 if (svm_msg_q_is_empty (mq))
2931 svm_msg_q_unlock (mq);
2934 else if (wait_for_time < 0)
2936 svm_msg_q_wait (mq);
2940 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2942 svm_msg_q_unlock (mq);
2947 ASSERT (maxevents > *num_ev);
2948 vcl_mq_dequeue_batch (wrk, mq, ~0);
2949 svm_msg_q_unlock (mq);
2952 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2954 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2955 e = svm_msg_q_msg_data (mq, msg);
2956 if (*num_ev < maxevents)
2957 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2959 vcl_handle_mq_event (wrk, e);
2960 svm_msg_q_free_msg (mq, msg);
2962 vec_reset_length (wrk->mq_msg_vector);
2963 vcl_handle_pending_wrk_updates (wrk);
2968 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2969 int maxevents, u32 n_evts, double wait_for_time)
2971 double wait = 0, start = 0, now;
2975 wait = wait_for_time;
2976 start = clib_time_now (&wrk->clib_time);
2981 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2988 now = clib_time_now (&wrk->clib_time);
2989 wait -= (now - start) * 1e3;
2998 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2999 int maxevents, u32 n_evts, double wait_for_time)
3001 vcl_mq_evt_conn_t *mqc;
3002 int __clib_unused n_read;
3006 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3008 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3009 vec_len (wrk->mq_events), wait_for_time);
3010 for (i = 0; i < n_mq_evts; i++)
3012 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3013 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3014 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3016 if (!n_evts && n_mq_evts > 0)
3019 return (int) n_evts;
3023 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3024 int maxevents, double wait_for_time)
3026 vcl_worker_t *wrk = vcl_worker_get_current ();
3027 vcl_session_t *vep_session;
3031 if (PREDICT_FALSE (maxevents <= 0))
3033 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3034 return VPPCOM_EINVAL;
3037 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3039 return VPPCOM_EBADFD;
3041 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3043 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3044 return VPPCOM_EINVAL;
3047 memset (events, 0, sizeof (*events) * maxevents);
3049 if (vec_len (wrk->unhandled_evts_vector))
3051 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3053 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3055 if (n_evts == maxevents)
3057 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3061 vec_reset_length (wrk->unhandled_evts_vector);
3064 if (vcm->cfg.use_mq_eventfd)
3065 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3068 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3073 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3074 void *buffer, uint32_t * buflen)
3076 vcl_worker_t *wrk = vcl_worker_get_current ();
3077 vcl_session_t *session;
3079 u32 *flags = buffer, tmp_flags = 0;
3080 vppcom_endpt_t *ep = buffer;
3082 session = vcl_session_get_w_handle (wrk, session_handle);
3084 return VPPCOM_EBADFD;
3088 case VPPCOM_ATTR_GET_NREAD:
3089 rv = vcl_session_read_ready (session);
3090 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3094 case VPPCOM_ATTR_GET_NWRITE:
3095 rv = vcl_session_write_ready (session);
3096 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3100 case VPPCOM_ATTR_GET_FLAGS:
3101 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3105 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3107 *buflen = sizeof (*flags);
3108 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3109 "is_nonblocking = %u", session_handle, *flags,
3110 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3116 case VPPCOM_ATTR_SET_FLAGS:
3117 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3119 if (*flags & O_NONBLOCK)
3120 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3122 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3124 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3125 " is_nonblocking = %u", session_handle, *flags,
3126 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3132 case VPPCOM_ATTR_GET_PEER_ADDR:
3133 if (PREDICT_TRUE (buffer && buflen &&
3134 (*buflen >= sizeof (*ep)) && ep->ip))
3136 ep->is_ip4 = session->transport.is_ip4;
3137 ep->port = session->transport.rmt_port;
3138 if (session->transport.is_ip4)
3139 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3140 sizeof (ip4_address_t));
3142 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3143 sizeof (ip6_address_t));
3144 *buflen = sizeof (*ep);
3145 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3146 "addr = %U, port %u", session_handle, ep->is_ip4,
3147 format_ip46_address, &session->transport.rmt_ip,
3148 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3149 clib_net_to_host_u16 (ep->port));
3155 case VPPCOM_ATTR_GET_LCL_ADDR:
3156 if (PREDICT_TRUE (buffer && buflen &&
3157 (*buflen >= sizeof (*ep)) && ep->ip))
3159 ep->is_ip4 = session->transport.is_ip4;
3160 ep->port = session->transport.lcl_port;
3161 if (session->transport.is_ip4)
3162 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3163 sizeof (ip4_address_t));
3165 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3166 sizeof (ip6_address_t));
3167 *buflen = sizeof (*ep);
3168 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3169 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3170 &session->transport.lcl_ip,
3171 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3172 clib_net_to_host_u16 (ep->port));
3178 case VPPCOM_ATTR_SET_LCL_ADDR:
3179 if (PREDICT_TRUE (buffer && buflen &&
3180 (*buflen >= sizeof (*ep)) && ep->ip))
3182 session->transport.is_ip4 = ep->is_ip4;
3183 session->transport.lcl_port = ep->port;
3184 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3185 *buflen = sizeof (*ep);
3186 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3187 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3188 &session->transport.lcl_ip,
3189 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3190 clib_net_to_host_u16 (ep->port));
3196 case VPPCOM_ATTR_GET_LIBC_EPFD:
3197 rv = session->libc_epfd;
3198 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3201 case VPPCOM_ATTR_SET_LIBC_EPFD:
3202 if (PREDICT_TRUE (buffer && buflen &&
3203 (*buflen == sizeof (session->libc_epfd))))
3205 session->libc_epfd = *(int *) buffer;
3206 *buflen = sizeof (session->libc_epfd);
3208 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3209 session->libc_epfd, *buflen);
3215 case VPPCOM_ATTR_GET_PROTOCOL:
3216 if (buffer && buflen && (*buflen >= sizeof (int)))
3218 *(int *) buffer = session->session_type;
3219 *buflen = sizeof (int);
3221 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3222 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3228 case VPPCOM_ATTR_GET_LISTEN:
3229 if (buffer && buflen && (*buflen >= sizeof (int)))
3231 *(int *) buffer = vcl_session_has_attr (session,
3232 VCL_SESS_ATTR_LISTEN);
3233 *buflen = sizeof (int);
3235 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3242 case VPPCOM_ATTR_GET_ERROR:
3243 if (buffer && buflen && (*buflen >= sizeof (int)))
3245 *(int *) buffer = 0;
3246 *buflen = sizeof (int);
3248 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3249 *(int *) buffer, *buflen);
3255 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3256 if (buffer && buflen && (*buflen >= sizeof (u32)))
3260 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3262 svm_fifo_size (session->tx_fifo) :
3263 vcm->cfg.tx_fifo_size);
3264 *buflen = sizeof (u32);
3266 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3267 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3274 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3275 if (buffer && buflen && (*buflen == sizeof (u32)))
3278 session->sndbuf_size = *(u32 *) buffer;
3279 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3280 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3287 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3288 if (buffer && buflen && (*buflen >= sizeof (u32)))
3292 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3294 svm_fifo_size (session->rx_fifo) :
3295 vcm->cfg.rx_fifo_size);
3296 *buflen = sizeof (u32);
3298 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3299 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3305 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3306 if (buffer && buflen && (*buflen == sizeof (u32)))
3309 session->rcvbuf_size = *(u32 *) buffer;
3310 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3311 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3318 case VPPCOM_ATTR_GET_REUSEADDR:
3319 if (buffer && buflen && (*buflen >= sizeof (int)))
3322 *(int *) buffer = vcl_session_has_attr (session,
3323 VCL_SESS_ATTR_REUSEADDR);
3324 *buflen = sizeof (int);
3326 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3327 *(int *) buffer, *buflen);
3333 case VPPCOM_ATTR_SET_REUSEADDR:
3334 if (buffer && buflen && (*buflen == sizeof (int)) &&
3335 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3338 if (*(int *) buffer)
3339 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3341 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3343 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3344 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3351 case VPPCOM_ATTR_GET_REUSEPORT:
3352 if (buffer && buflen && (*buflen >= sizeof (int)))
3355 *(int *) buffer = vcl_session_has_attr (session,
3356 VCL_SESS_ATTR_REUSEPORT);
3357 *buflen = sizeof (int);
3359 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3360 *(int *) buffer, *buflen);
3366 case VPPCOM_ATTR_SET_REUSEPORT:
3367 if (buffer && buflen && (*buflen == sizeof (int)) &&
3368 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3371 if (*(int *) buffer)
3372 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3374 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3376 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3377 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3384 case VPPCOM_ATTR_GET_BROADCAST:
3385 if (buffer && buflen && (*buflen >= sizeof (int)))
3388 *(int *) buffer = vcl_session_has_attr (session,
3389 VCL_SESS_ATTR_BROADCAST);
3390 *buflen = sizeof (int);
3392 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3393 *(int *) buffer, *buflen);
3399 case VPPCOM_ATTR_SET_BROADCAST:
3400 if (buffer && buflen && (*buflen == sizeof (int)))
3403 if (*(int *) buffer)
3404 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3406 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3408 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3409 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3416 case VPPCOM_ATTR_GET_V6ONLY:
3417 if (buffer && buflen && (*buflen >= sizeof (int)))
3420 *(int *) buffer = vcl_session_has_attr (session,
3421 VCL_SESS_ATTR_V6ONLY);
3422 *buflen = sizeof (int);
3424 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3425 *(int *) buffer, *buflen);
3431 case VPPCOM_ATTR_SET_V6ONLY:
3432 if (buffer && buflen && (*buflen == sizeof (int)))
3435 if (*(int *) buffer)
3436 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3438 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3440 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3441 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3448 case VPPCOM_ATTR_GET_KEEPALIVE:
3449 if (buffer && buflen && (*buflen >= sizeof (int)))
3452 *(int *) buffer = vcl_session_has_attr (session,
3453 VCL_SESS_ATTR_KEEPALIVE);
3454 *buflen = sizeof (int);
3456 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3457 *(int *) buffer, *buflen);
3463 case VPPCOM_ATTR_SET_KEEPALIVE:
3464 if (buffer && buflen && (*buflen == sizeof (int)))
3467 if (*(int *) buffer)
3468 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3470 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3472 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3473 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3480 case VPPCOM_ATTR_GET_TCP_NODELAY:
3481 if (buffer && buflen && (*buflen >= sizeof (int)))
3484 *(int *) buffer = vcl_session_has_attr (session,
3485 VCL_SESS_ATTR_TCP_NODELAY);
3486 *buflen = sizeof (int);
3488 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3489 *(int *) buffer, *buflen);
3495 case VPPCOM_ATTR_SET_TCP_NODELAY:
3496 if (buffer && buflen && (*buflen == sizeof (int)))
3499 if (*(int *) buffer)
3500 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3502 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3504 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3505 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3512 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3513 if (buffer && buflen && (*buflen >= sizeof (int)))
3516 *(int *) buffer = vcl_session_has_attr (session,
3517 VCL_SESS_ATTR_TCP_KEEPIDLE);
3518 *buflen = sizeof (int);
3520 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3521 *(int *) buffer, *buflen);
3527 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3528 if (buffer && buflen && (*buflen == sizeof (int)))
3531 if (*(int *) buffer)
3532 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3534 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3536 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3537 vcl_session_has_attr (session,
3538 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3544 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3545 if (buffer && buflen && (*buflen >= sizeof (int)))
3548 *(int *) buffer = vcl_session_has_attr (session,
3549 VCL_SESS_ATTR_TCP_KEEPINTVL);
3550 *buflen = sizeof (int);
3552 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3553 *(int *) buffer, *buflen);
3559 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3560 if (buffer && buflen && (*buflen == sizeof (int)))
3563 if (*(int *) buffer)
3564 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3566 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3568 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3569 vcl_session_has_attr (session,
3570 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3576 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3577 if (buffer && buflen && (*buflen >= sizeof (u32)))
3580 *(u32 *) buffer = session->user_mss;
3581 *buflen = sizeof (int);
3583 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3584 *(int *) buffer, *buflen);
3590 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3591 if (buffer && buflen && (*buflen == sizeof (u32)))
3594 session->user_mss = *(u32 *) buffer;
3596 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3597 session->user_mss, *buflen);
3603 case VPPCOM_ATTR_SET_SHUT:
3604 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3605 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3606 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3607 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3610 case VPPCOM_ATTR_GET_SHUT:
3611 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3613 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3616 *(int *) buffer = SHUT_RD;
3617 else if (tmp_flags == 2)
3618 *(int *) buffer = SHUT_WR;
3619 else if (tmp_flags == 3)
3620 *(int *) buffer = SHUT_RDWR;
3621 *buflen = sizeof (int);
3624 case VPPCOM_ATTR_SET_CONNECTED:
3625 session->flags |= VCL_SESSION_F_CONNECTED;
3637 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3638 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3640 vcl_worker_t *wrk = vcl_worker_get_current ();
3641 vcl_session_t *session;
3645 rv = vppcom_session_read (session_handle, buffer, buflen);
3646 else if (flags & MSG_PEEK)
3647 rv = vppcom_session_peek (session_handle, buffer, buflen);
3650 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3651 return VPPCOM_EAFNOSUPPORT;
3656 session = vcl_session_get_w_handle (wrk, session_handle);
3657 if (session->transport.is_ip4)
3658 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3659 sizeof (ip4_address_t));
3661 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3662 sizeof (ip6_address_t));
3663 ep->is_ip4 = session->transport.is_ip4;
3664 ep->port = session->transport.rmt_port;
3671 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3672 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3674 vcl_worker_t *wrk = vcl_worker_get_current ();
3677 s = vcl_session_get_w_handle (wrk, session_handle);
3679 return VPPCOM_EBADFD;
3682 return VPPCOM_EINVAL;
3686 if (!vcl_session_is_cl (s))
3687 return VPPCOM_EINVAL;
3689 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3690 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3692 u32 session_index = s->session_index;
3693 f64 timeout = vcm->cfg.session_timeout;
3696 vcl_send_session_connect (wrk, s);
3697 rv = vppcom_wait_for_session_state_change (session_index,
3702 s = vcl_session_get (wrk, session_index);
3705 s->transport.is_ip4 = ep->is_ip4;
3706 s->transport.rmt_port = ep->port;
3707 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3712 // TBD check the flags and do the right thing
3713 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3716 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3717 s->is_dgram ? 1 : 0));
3721 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3723 vcl_worker_t *wrk = vcl_worker_get_current ();
3724 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3725 u32 i, keep_trying = 1;
3726 svm_msg_q_msg_t msg;
3730 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3733 return VPPCOM_EFAULT;
3737 vcl_session_t *session;
3739 /* Dequeue all events and drop all unhandled io events */
3740 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3742 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3743 vcl_handle_mq_event (wrk, e);
3744 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3746 vec_reset_length (wrk->unhandled_evts_vector);
3748 for (i = 0; i < n_sids; i++)
3750 session = vcl_session_get (wrk, vp[i].sh);
3753 vp[i].revents = POLLHUP;
3760 if (POLLIN & vp[i].events)
3762 rv = vcl_session_read_ready (session);
3765 vp[i].revents |= POLLIN;
3772 case VPPCOM_ECONNRESET:
3773 vp[i].revents = POLLHUP;
3777 vp[i].revents = POLLERR;
3784 if (POLLOUT & vp[i].events)
3786 rv = vcl_session_write_ready (session);
3789 vp[i].revents |= POLLOUT;
3796 case VPPCOM_ECONNRESET:
3797 vp[i].revents = POLLHUP;
3801 vp[i].revents = POLLERR;
3808 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3810 vp[i].revents = POLLNVAL;
3814 if (wait_for_time != -1)
3815 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3817 while ((num_ev == 0) && keep_trying);
3823 vppcom_mq_epoll_fd (void)
3825 vcl_worker_t *wrk = vcl_worker_get_current ();
3826 return wrk->mqs_epfd;
3830 vppcom_session_index (vcl_session_handle_t session_handle)
3832 return session_handle & 0xFFFFFF;
3836 vppcom_session_worker (vcl_session_handle_t session_handle)
3838 return session_handle >> 24;
3842 vppcom_worker_register (void)
3844 if (!vcl_worker_alloc_and_init ())
3845 return VPPCOM_EEXIST;
3847 if (vcl_worker_register_with_vpp ())
3848 return VPPCOM_EEXIST;
3854 vppcom_worker_unregister (void)
3856 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3857 vcl_set_worker_index (~0);
3861 vppcom_worker_index_set (int index)
3863 vcl_set_worker_index (index);
3867 vppcom_worker_index (void)
3869 return vcl_get_worker_index ();
3873 vppcom_worker_mqs_epfd (void)
3875 vcl_worker_t *wrk = vcl_worker_get_current ();
3876 if (!vcm->cfg.use_mq_eventfd)
3878 return wrk->mqs_epfd;
3882 vppcom_session_is_connectable_listener (uint32_t session_handle)
3884 vcl_session_t *session;
3885 vcl_worker_t *wrk = vcl_worker_get_current ();
3886 session = vcl_session_get_w_handle (wrk, session_handle);
3888 return VPPCOM_EBADFD;
3889 return vcl_session_is_connectable_listener (wrk, session);
3893 vppcom_session_listener (uint32_t session_handle)
3895 vcl_worker_t *wrk = vcl_worker_get_current ();
3896 vcl_session_t *listen_session, *session;
3897 session = vcl_session_get_w_handle (wrk, session_handle);
3899 return VPPCOM_EBADFD;
3900 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3901 return VPPCOM_EBADFD;
3902 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3903 if (!listen_session)
3904 return VPPCOM_EBADFD;
3905 return vcl_session_handle (listen_session);
3909 vppcom_session_n_accepted (uint32_t session_handle)
3911 vcl_worker_t *wrk = vcl_worker_get_current ();
3912 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3914 return VPPCOM_EBADFD;
3915 return session->n_accepted_sessions;
3919 vppcom_proto_str (vppcom_proto_t proto)
3921 char const *proto_str;
3925 case VPPCOM_PROTO_TCP:
3928 case VPPCOM_PROTO_UDP:
3931 case VPPCOM_PROTO_TLS:
3934 case VPPCOM_PROTO_QUIC:
3938 proto_str = "UNKNOWN";
3945 vppcom_retval_str (int retval)
3956 st = "VPPCOM_EAGAIN";
3960 st = "VPPCOM_EFAULT";
3964 st = "VPPCOM_ENOMEM";
3968 st = "VPPCOM_EINVAL";
3972 st = "VPPCOM_EBADFD";
3975 case VPPCOM_EAFNOSUPPORT:
3976 st = "VPPCOM_EAFNOSUPPORT";
3979 case VPPCOM_ECONNABORTED:
3980 st = "VPPCOM_ECONNABORTED";
3983 case VPPCOM_ECONNRESET:
3984 st = "VPPCOM_ECONNRESET";
3987 case VPPCOM_ENOTCONN:
3988 st = "VPPCOM_ENOTCONN";
3991 case VPPCOM_ECONNREFUSED:
3992 st = "VPPCOM_ECONNREFUSED";
3995 case VPPCOM_ETIMEDOUT:
3996 st = "VPPCOM_ETIMEDOUT";
4000 st = "UNKNOWN_STATE";
4008 * fd.io coding-style-patch-verification: ON
4011 * eval: (c-set-style "gnu")