2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_segment_is_not_mounted (vcl_worker_t * wrk, u64 segment_handle)
30 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
33 segment_index = vcl_segment_table_lookup (segment_handle);
34 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
41 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
47 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
48 for (i = 0; i < n_msgs; i++)
50 vec_add2 (wrk->mq_msg_vector, msg, 1);
51 svm_msg_q_sub_w_lock (mq, msg);
57 vppcom_session_state_str (vcl_session_state_t state)
63 case VCL_STATE_CLOSED:
66 case VCL_STATE_LISTEN:
72 case VCL_STATE_VPP_CLOSING:
73 st = "STATE_VPP_CLOSING";
75 case VCL_STATE_DISCONNECT:
76 st = "STATE_DISCONNECT";
78 case VCL_STATE_DETACHED:
79 st = "STATE_DETACHED";
81 case VCL_STATE_UPDATED:
84 case VCL_STATE_LISTEN_NO_MQ:
85 st = "STATE_LISTEN_NO_MQ";
96 format_ip4_address (u8 * s, va_list * args)
98 u8 *a = va_arg (*args, u8 *);
99 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
103 format_ip6_address (u8 * s, va_list * args)
105 ip6_address_t *a = va_arg (*args, ip6_address_t *);
106 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
108 i_max_n_zero = ARRAY_LEN (a->as_u16);
110 i_first_zero = i_max_n_zero;
112 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
114 u32 is_zero = a->as_u16[i] == 0;
115 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
121 if ((!is_zero && n_zeros > max_n_zeros)
122 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
124 i_max_n_zero = i_first_zero;
125 max_n_zeros = n_zeros;
126 i_first_zero = ARRAY_LEN (a->as_u16);
131 last_double_colon = 0;
132 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
134 if (i == i_max_n_zero && max_n_zeros > 1)
136 s = format (s, "::");
137 i += max_n_zeros - 1;
138 last_double_colon = 1;
142 s = format (s, "%s%x",
143 (last_double_colon || i == 0) ? "" : ":",
144 clib_net_to_host_u16 (a->as_u16[i]));
145 last_double_colon = 0;
152 /* Format an IP46 address. */
154 format_ip46_address (u8 * s, va_list * args)
156 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
157 ip46_type_t type = va_arg (*args, ip46_type_t);
163 is_ip4 = ip46_address_is_ip4 (ip46);
174 format (s, "%U", format_ip4_address, &ip46->ip4) :
175 format (s, "%U", format_ip6_address, &ip46->ip6);
179 * VPPCOM Utility Functions
183 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
185 app_session_evt_t _app_evt, *app_evt = &_app_evt;
186 session_listen_msg_t *mp;
189 mq = vcl_worker_ctrl_mq (wrk);
190 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
191 mp = (session_listen_msg_t *) app_evt->evt->data;
192 memset (mp, 0, sizeof (*mp));
193 mp->client_index = wrk->api_client_handle;
194 mp->context = s->session_index;
195 mp->wrk_index = wrk->vpp_wrk_index;
196 mp->is_ip4 = s->transport.is_ip4;
197 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
198 mp->port = s->transport.lcl_port;
199 mp->proto = s->session_type;
200 if (s->flags & VCL_SESSION_F_CONNECTED)
201 mp->flags = TRANSPORT_CFG_F_CONNECTED;
202 app_send_ctrl_evt_to_vpp (mq, app_evt);
206 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
208 app_session_evt_t _app_evt, *app_evt = &_app_evt;
209 session_connect_msg_t *mp;
212 mq = vcl_worker_ctrl_mq (wrk);
213 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
214 mp = (session_connect_msg_t *) app_evt->evt->data;
215 memset (mp, 0, sizeof (*mp));
216 mp->client_index = wrk->api_client_handle;
217 mp->context = s->session_index;
218 mp->wrk_index = wrk->vpp_wrk_index;
219 mp->is_ip4 = s->transport.is_ip4;
220 mp->parent_handle = s->parent_handle;
221 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
222 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
223 mp->port = s->transport.rmt_port;
224 mp->lcl_port = s->transport.lcl_port;
225 mp->proto = s->session_type;
226 if (s->flags & VCL_SESSION_F_CONNECTED)
227 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
228 app_send_ctrl_evt_to_vpp (mq, app_evt);
232 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
234 app_session_evt_t _app_evt, *app_evt = &_app_evt;
235 session_unlisten_msg_t *mp;
238 mq = vcl_worker_ctrl_mq (wrk);
239 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
240 mp = (session_unlisten_msg_t *) app_evt->evt->data;
241 memset (mp, 0, sizeof (*mp));
242 mp->client_index = wrk->api_client_handle;
243 mp->wrk_index = wrk->vpp_wrk_index;
244 mp->handle = s->vpp_handle;
245 mp->context = wrk->wrk_index;
246 app_send_ctrl_evt_to_vpp (mq, app_evt);
250 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
252 app_session_evt_t _app_evt, *app_evt = &_app_evt;
253 session_disconnect_msg_t *mp;
256 /* Send to thread that owns the session */
258 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
259 mp = (session_disconnect_msg_t *) app_evt->evt->data;
260 memset (mp, 0, sizeof (*mp));
261 mp->client_index = wrk->api_client_handle;
262 mp->handle = s->vpp_handle;
263 app_send_ctrl_evt_to_vpp (mq, app_evt);
267 vcl_send_app_detach (vcl_worker_t * wrk)
269 app_session_evt_t _app_evt, *app_evt = &_app_evt;
270 session_app_detach_msg_t *mp;
273 mq = vcl_worker_ctrl_mq (wrk);
274 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
275 mp = (session_app_detach_msg_t *) app_evt->evt->data;
276 memset (mp, 0, sizeof (*mp));
277 mp->client_index = wrk->api_client_handle;
278 app_send_ctrl_evt_to_vpp (mq, app_evt);
282 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
283 session_handle_t handle, int retval)
285 app_session_evt_t _app_evt, *app_evt = &_app_evt;
286 session_accepted_reply_msg_t *rmp;
287 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
288 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
289 rmp->handle = handle;
290 rmp->context = context;
291 rmp->retval = retval;
292 app_send_ctrl_evt_to_vpp (mq, app_evt);
296 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
297 session_handle_t handle, int retval)
299 app_session_evt_t _app_evt, *app_evt = &_app_evt;
300 session_disconnected_reply_msg_t *rmp;
301 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
302 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
303 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
304 rmp->handle = handle;
305 rmp->context = context;
306 rmp->retval = retval;
307 app_send_ctrl_evt_to_vpp (mq, app_evt);
311 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
312 session_handle_t handle, int retval)
314 app_session_evt_t _app_evt, *app_evt = &_app_evt;
315 session_reset_reply_msg_t *rmp;
316 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
317 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
318 rmp->handle = handle;
319 rmp->context = context;
320 rmp->retval = retval;
321 app_send_ctrl_evt_to_vpp (mq, app_evt);
325 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
328 app_session_evt_t _app_evt, *app_evt = &_app_evt;
329 session_worker_update_msg_t *mp;
332 mq = vcl_session_vpp_evt_q (wrk, s);
333 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
334 mp = (session_worker_update_msg_t *) app_evt->evt->data;
335 mp->client_index = wrk->api_client_handle;
336 mp->handle = s->vpp_handle;
337 mp->req_wrk_index = wrk->vpp_wrk_index;
338 mp->wrk_index = wrk_index;
339 app_send_ctrl_evt_to_vpp (mq, app_evt);
343 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
345 app_session_evt_t _app_evt, *app_evt = &_app_evt;
346 session_app_wrk_rpc_msg_t *mp;
347 vcl_worker_t *dst_wrk, *wrk;
351 if (data_len > sizeof (mp->data))
354 clib_spinlock_lock (&vcm->workers_lock);
356 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
360 wrk = vcl_worker_get_current ();
361 mq = vcl_worker_ctrl_mq (wrk);
362 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
363 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
364 mp->client_index = wrk->api_client_handle;
365 mp->wrk_index = dst_wrk->vpp_wrk_index;
366 clib_memcpy (mp->data, data, data_len);
367 app_send_ctrl_evt_to_vpp (mq, app_evt);
371 clib_spinlock_unlock (&vcm->workers_lock);
376 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
379 vcl_session_t *session, *listen_session;
380 svm_fifo_t *rx_fifo, *tx_fifo;
384 session = vcl_session_alloc (wrk);
386 listen_session = vcl_session_get (wrk, ls_index);
387 if (listen_session->vpp_handle != mp->listener_handle)
389 VDBG (0, "ERROR: listener handle %lu does not match session %u",
390 mp->listener_handle, ls_index);
394 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
396 VDBG (0, "ERROR: segment for session %u is not mounted!",
397 session->session_index);
401 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
402 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
403 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
405 rx_fifo->client_session_index = session->session_index;
406 tx_fifo->client_session_index = session->session_index;
407 rx_fifo->client_thread_index = vcl_get_worker_index ();
408 tx_fifo->client_thread_index = vcl_get_worker_index ();
409 vpp_wrk_index = tx_fifo->master_thread_index;
410 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
411 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
413 session->vpp_handle = mp->handle;
414 session->vpp_thread_index = rx_fifo->master_thread_index;
415 session->rx_fifo = rx_fifo;
416 session->tx_fifo = tx_fifo;
418 session->session_state = VCL_STATE_READY;
419 session->transport.rmt_port = mp->rmt.port;
420 session->transport.is_ip4 = mp->rmt.is_ip4;
421 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
422 sizeof (ip46_address_t));
424 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
425 session->transport.lcl_port = listen_session->transport.lcl_port;
426 session->transport.lcl_ip = listen_session->transport.lcl_ip;
427 session->session_type = listen_session->session_type;
428 session->is_dgram = vcl_proto_is_dgram (session->session_type);
429 session->listener_index = listen_session->session_index;
430 listen_session->n_accepted_sessions++;
432 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
433 " port %d queue %p!", session->session_index, mp->handle,
434 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
435 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
436 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
437 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
439 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
440 session->vpp_handle, 0);
442 return session->session_index;
445 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
446 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
447 VNET_API_ERROR_INVALID_ARGUMENT);
448 vcl_session_free (wrk, session);
449 return VCL_INVALID_SESSION_INDEX;
453 vcl_session_connected_handler (vcl_worker_t * wrk,
454 session_connected_msg_t * mp)
456 u32 session_index, vpp_wrk_index;
457 svm_fifo_t *rx_fifo, *tx_fifo;
458 vcl_session_t *session = 0;
460 session_index = mp->context;
461 session = vcl_session_get (wrk, session_index);
464 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
465 mp->handle, session_index);
466 return VCL_INVALID_SESSION_INDEX;
470 VDBG (0, "ERROR: session index %u: connect failed! %U",
471 session_index, format_session_error, mp->retval);
472 session->session_state = VCL_STATE_DETACHED;
473 session->vpp_handle = mp->handle;
474 return session_index;
477 session->vpp_handle = mp->handle;
478 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
480 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
481 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
482 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
484 VDBG (0, "segment for session %u is not mounted!",
485 session->session_index);
486 session->session_state = VCL_STATE_DETACHED;
487 vcl_send_session_disconnect (wrk, session);
488 return session_index;
491 rx_fifo->client_session_index = session_index;
492 tx_fifo->client_session_index = session_index;
493 rx_fifo->client_thread_index = vcl_get_worker_index ();
494 tx_fifo->client_thread_index = vcl_get_worker_index ();
496 vpp_wrk_index = tx_fifo->master_thread_index;
497 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
498 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
502 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
503 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
504 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
506 VDBG (0, "ct segment for session %u is not mounted!",
507 session->session_index);
508 session->session_state = VCL_STATE_DETACHED;
509 vcl_send_session_disconnect (wrk, session);
510 return session_index;
514 session->rx_fifo = rx_fifo;
515 session->tx_fifo = tx_fifo;
516 session->vpp_thread_index = rx_fifo->master_thread_index;
517 session->transport.is_ip4 = mp->lcl.is_ip4;
518 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
519 sizeof (session->transport.lcl_ip));
520 session->transport.lcl_port = mp->lcl.port;
522 /* Application closed session before connect reply */
523 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
524 && session->session_state == VCL_STATE_CLOSED)
525 vcl_send_session_disconnect (wrk, session);
527 session->session_state = VCL_STATE_READY;
529 /* Add it to lookup table */
530 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
532 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
533 " refcnt %d", session_index, mp->handle, session->rx_fifo,
534 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
536 return session_index;
540 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
542 vcl_session_msg_t *accepted_msg;
545 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
547 accepted_msg = &session->accept_evts_fifo[i];
548 if (accepted_msg->accepted_msg.handle == handle)
550 accepted_msg->flags |= flags;
558 vcl_session_reset_handler (vcl_worker_t * wrk,
559 session_reset_msg_t * reset_msg)
561 vcl_session_t *session;
564 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
565 session = vcl_session_get (wrk, sid);
568 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
569 return VCL_INVALID_SESSION_INDEX;
572 /* Caught a reset before actually accepting the session */
573 if (session->session_state == VCL_STATE_LISTEN)
576 if (!vcl_flag_accepted_session (session, reset_msg->handle,
577 VCL_ACCEPTED_F_RESET))
578 VDBG (0, "session was not accepted!");
579 return VCL_INVALID_SESSION_INDEX;
582 if (session->session_state != VCL_STATE_CLOSED)
583 session->session_state = VCL_STATE_DISCONNECT;
584 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
589 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
591 vcl_session_t *session;
592 u32 sid = mp->context;
594 session = vcl_session_get (wrk, sid);
597 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
598 format_session_error, mp->retval);
601 session->session_state = VCL_STATE_DETACHED;
602 session->vpp_handle = mp->handle;
607 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
609 return VCL_INVALID_SESSION_INDEX;
613 session->vpp_handle = mp->handle;
614 session->transport.is_ip4 = mp->lcl_is_ip4;
615 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
616 sizeof (ip46_address_t));
617 session->transport.lcl_port = mp->lcl_port;
618 vcl_session_table_add_listener (wrk, mp->handle, sid);
619 session->session_state = VCL_STATE_LISTEN;
621 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
622 vec_validate (wrk->vpp_event_queues, 0);
623 wrk->vpp_event_queues[0] = session->vpp_evt_q;
625 if (vcl_session_is_cl (session))
627 svm_fifo_t *rx_fifo, *tx_fifo;
628 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
629 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
630 rx_fifo->client_session_index = sid;
631 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
632 tx_fifo->client_session_index = sid;
633 session->rx_fifo = rx_fifo;
634 session->tx_fifo = tx_fifo;
637 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
642 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
644 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
647 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
650 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
653 if (s->session_state != VCL_STATE_DISCONNECT)
655 /* Connected udp listener */
656 if (s->session_type == VPPCOM_PROTO_UDP
657 && s->session_state == VCL_STATE_CLOSED)
660 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
665 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
666 s->session_index, mp->handle, format_session_error, mp->retval);
668 if (mp->context != wrk->wrk_index)
669 VDBG (0, "wrong context");
671 vcl_session_table_del_vpp_handle (wrk, mp->handle);
672 vcl_session_free (wrk, s);
676 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
678 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
681 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
684 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
688 s->vpp_thread_index = mp->vpp_thread_index;
689 s->vpp_handle = mp->new_handle;
690 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
692 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
693 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
695 vcl_session_table_del_vpp_handle (wrk, mp->handle);
696 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
698 /* Generate new tx event if we have outstanding data */
699 if (svm_fifo_has_event (s->tx_fifo))
700 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
701 SESSION_IO_EVT_TX, SVM_Q_WAIT);
703 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
704 s->vpp_thread_index, mp->new_handle);
707 static vcl_session_t *
708 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
710 vcl_session_msg_t *vcl_msg;
711 vcl_session_t *session;
713 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
714 if (PREDICT_FALSE (session != 0))
715 VWRN ("session overlap handle %lu state %u!", msg->handle,
716 session->session_state);
718 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
721 VERR ("couldn't find listen session: listener handle %llx",
722 msg->listener_handle);
726 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
728 vcl_msg->accepted_msg = *msg;
729 /* Session handle points to listener until fully accepted by app */
730 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
735 static vcl_session_t *
736 vcl_session_disconnected_handler (vcl_worker_t * wrk,
737 session_disconnected_msg_t * msg)
739 vcl_session_t *session;
741 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
744 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
748 /* Late disconnect notification on a session that has been closed */
749 if (session->session_state == VCL_STATE_CLOSED)
752 /* Caught a disconnect before actually accepting the session */
753 if (session->session_state == VCL_STATE_LISTEN)
755 if (!vcl_flag_accepted_session (session, msg->handle,
756 VCL_ACCEPTED_F_CLOSED))
757 VDBG (0, "session was not accepted!");
761 /* If not already reset change state */
762 if (session->session_state != VCL_STATE_DISCONNECT)
763 session->session_state = VCL_STATE_VPP_CLOSING;
769 vppcom_session_disconnect (u32 session_handle)
771 vcl_worker_t *wrk = vcl_worker_get_current ();
772 svm_msg_q_t *vpp_evt_q;
773 vcl_session_t *session, *listen_session;
774 vcl_session_state_t state;
777 session = vcl_session_get_w_handle (wrk, session_handle);
779 return VPPCOM_EBADFD;
781 vpp_handle = session->vpp_handle;
782 state = session->session_state;
784 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
785 vpp_handle, state, vppcom_session_state_str (state));
787 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
789 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
790 return VPPCOM_EBADFD;
793 if (state == VCL_STATE_VPP_CLOSING)
795 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
796 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->api_client_handle,
798 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
799 session->session_index, vpp_handle);
803 /* Session doesn't have an event queue yet. Probably a non-blocking
804 * connect. Wait for the reply */
805 if (PREDICT_FALSE (!session->vpp_evt_q))
808 VDBG (1, "session %u [0x%llx]: sending disconnect...",
809 session->session_index, vpp_handle);
810 vcl_send_session_disconnect (wrk, session);
813 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
815 listen_session = vcl_session_get (wrk, session->listener_index);
816 listen_session->n_accepted_sessions--;
823 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
825 session_cleanup_msg_t *msg;
826 vcl_session_t *session;
828 msg = (session_cleanup_msg_t *) data;
829 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
832 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
836 if (msg->type == SESSION_CLEANUP_TRANSPORT)
838 /* Transport was cleaned up before we confirmed close. Probably the
839 * app is still waiting for some data that cannot be delivered.
840 * Confirm close to make sure everything is cleaned up.
841 * Move to undetermined state to ensure that the session is not
842 * removed before both vpp and the app cleanup.
843 * - If the app closes first, the session is moved to CLOSED state
844 * and the session cleanup notification from vpp removes the
846 * - If vpp cleans up the session first, the session is moved to
847 * DETACHED state lower and subsequently the close from the app
850 if (session->session_state == VCL_STATE_VPP_CLOSING)
852 vppcom_session_disconnect (vcl_session_handle (session));
853 session->session_state = VCL_STATE_UPDATED;
855 else if (session->session_state == VCL_STATE_DISCONNECT)
857 vcl_send_session_reset_reply (vcl_session_vpp_evt_q (wrk, session),
858 wrk->api_client_handle,
859 session->vpp_handle, 0);
860 session->session_state = VCL_STATE_UPDATED;
865 vcl_session_table_del_vpp_handle (wrk, msg->handle);
866 /* Should not happen. App did not close the connection so don't free it. */
867 if (session->session_state != VCL_STATE_CLOSED)
869 VDBG (0, "app did not close session %d", session->session_index);
870 session->session_state = VCL_STATE_DETACHED;
871 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
874 vcl_session_free (wrk, session);
878 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
880 session_req_worker_update_msg_t *msg;
883 msg = (session_req_worker_update_msg_t *) data;
884 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
888 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
892 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
894 session_worker_update_reply_msg_t *msg;
897 msg = (session_worker_update_reply_msg_t *) data;
898 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
901 VDBG (0, "unknown handle 0x%llx", msg->handle);
904 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
906 clib_warning ("segment for session %u is not mounted!",
913 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
914 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
915 s->rx_fifo->client_session_index = s->session_index;
916 s->tx_fifo->client_session_index = s->session_index;
917 s->rx_fifo->client_thread_index = wrk->wrk_index;
918 s->tx_fifo->client_thread_index = wrk->wrk_index;
920 s->session_state = VCL_STATE_UPDATED;
922 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
923 s->vpp_handle, wrk->wrk_index);
927 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
930 if (vcm->cfg.vpp_app_socket_api)
931 return vcl_sapi_recv_fds (wrk, fds, n_fds);
933 return vcl_bapi_recv_fds (wrk, fds, n_fds);
937 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
939 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
940 session_app_add_segment_msg_t *msg;
944 msg = (session_app_add_segment_msg_t *) data;
948 vcl_api_recv_fd (wrk, &fd, 1);
949 seg_type = SSVM_SEGMENT_MEMFD;
952 segment_handle = msg->segment_handle;
953 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
955 clib_warning ("invalid segment handle");
959 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
962 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
966 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
971 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
973 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
974 vcl_segment_detach (msg->segment_handle);
975 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
979 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
981 if (!vcm->wrk_rpc_fn)
984 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
988 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
990 session_disconnected_msg_t *disconnected_msg;
991 session_connected_msg_t *connected_msg;
992 session_reset_msg_t *reset_msg;
993 session_event_t *ecpy;
997 switch (e->event_type)
999 case SESSION_IO_EVT_RX:
1000 case SESSION_IO_EVT_TX:
1001 s = vcl_session_get (wrk, e->session_index);
1002 if (!s || !vcl_session_is_open (s))
1004 vec_add1 (wrk->unhandled_evts_vector, *e);
1006 case SESSION_CTRL_EVT_BOUND:
1007 /* We can only wait for only one listen so not postponed */
1008 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1010 case SESSION_CTRL_EVT_ACCEPTED:
1011 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1012 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1014 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1016 ecpy->postponed = 1;
1017 ecpy->session_index = s->session_index;
1020 case SESSION_CTRL_EVT_CONNECTED:
1021 connected_msg = (session_connected_msg_t *) e->data;
1022 sid = vcl_session_connected_handler (wrk, connected_msg);
1023 if (!(s = vcl_session_get (wrk, sid)))
1025 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1027 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1029 ecpy->postponed = 1;
1030 ecpy->session_index = s->session_index;
1033 case SESSION_CTRL_EVT_DISCONNECTED:
1034 disconnected_msg = (session_disconnected_msg_t *) e->data;
1035 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1037 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1039 vec_add1 (wrk->unhandled_evts_vector, *e);
1042 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1044 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1047 case SESSION_CTRL_EVT_RESET:
1048 reset_msg = (session_reset_msg_t *) e->data;
1049 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1051 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1053 vec_add1 (wrk->unhandled_evts_vector, *e);
1056 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1058 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1059 vcl_session_unlisten_reply_handler (wrk, e->data);
1061 case SESSION_CTRL_EVT_MIGRATED:
1062 vcl_session_migrated_handler (wrk, e->data);
1064 case SESSION_CTRL_EVT_CLEANUP:
1065 vcl_session_cleanup_handler (wrk, e->data);
1067 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1068 vcl_session_req_worker_update_handler (wrk, e->data);
1070 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1071 vcl_session_worker_update_reply_handler (wrk, e->data);
1073 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1074 vcl_session_app_add_segment_handler (wrk, e->data);
1076 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1077 vcl_session_app_del_segment_handler (wrk, e->data);
1079 case SESSION_CTRL_EVT_APP_WRK_RPC:
1080 vcl_worker_rpc_handler (wrk, e->data);
1083 clib_warning ("unhandled %u", e->event_type);
1089 vppcom_wait_for_session_state_change (u32 session_index,
1090 vcl_session_state_t state,
1093 vcl_worker_t *wrk = vcl_worker_get_current ();
1094 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1095 vcl_session_t *volatile session;
1096 svm_msg_q_msg_t msg;
1101 session = vcl_session_get (wrk, session_index);
1102 if (PREDICT_FALSE (!session))
1104 return VPPCOM_EBADFD;
1106 if (session->session_state == state)
1110 if (session->session_state == VCL_STATE_DETACHED)
1112 return VPPCOM_ECONNREFUSED;
1115 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1120 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1121 vcl_handle_mq_event (wrk, e);
1122 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1124 while (clib_time_now (&wrk->clib_time) < timeout);
1126 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1127 vppcom_session_state_str (state));
1128 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1130 return VPPCOM_ETIMEDOUT;
1134 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1136 vcl_session_state_t state;
1140 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1143 vec_foreach (sip, wrk->pending_session_wrk_updates)
1145 s = vcl_session_get (wrk, *sip);
1146 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1147 state = s->session_state;
1148 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1150 s->session_state = state;
1152 vec_reset_length (wrk->pending_session_wrk_updates);
1156 vcl_flush_mq_events (void)
1158 vcl_worker_t *wrk = vcl_worker_get_current ();
1159 svm_msg_q_msg_t *msg;
1164 mq = wrk->app_event_queue;
1165 svm_msg_q_lock (mq);
1166 vcl_mq_dequeue_batch (wrk, mq, ~0);
1167 svm_msg_q_unlock (mq);
1169 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1171 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1172 e = svm_msg_q_msg_data (mq, msg);
1173 vcl_handle_mq_event (wrk, e);
1174 svm_msg_q_free_msg (mq, msg);
1176 vec_reset_length (wrk->mq_msg_vector);
1177 vcl_handle_pending_wrk_updates (wrk);
1181 vppcom_session_unbind (u32 session_handle)
1183 vcl_worker_t *wrk = vcl_worker_get_current ();
1184 session_accepted_msg_t *accepted_msg;
1185 vcl_session_t *session = 0;
1186 vcl_session_msg_t *evt;
1188 session = vcl_session_get_w_handle (wrk, session_handle);
1190 return VPPCOM_EBADFD;
1192 /* Flush pending accept events, if any */
1193 while (clib_fifo_elts (session->accept_evts_fifo))
1195 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1196 accepted_msg = &evt->accepted_msg;
1197 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1198 vcl_send_session_accepted_reply (session->vpp_evt_q,
1199 accepted_msg->context,
1200 session->vpp_handle, -1);
1202 clib_fifo_free (session->accept_evts_fifo);
1204 vcl_send_session_unlisten (wrk, session);
1206 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1207 session->vpp_handle);
1208 vcl_evt (VCL_EVT_UNBIND, session);
1210 session->vpp_handle = ~0;
1211 session->session_state = VCL_STATE_DISCONNECT;
1219 * Notify vpp of the disconnect and mark the worker as free. If we're the
1220 * last worker, do a full cleanup otherwise, since we're probably a forked
1221 * child, avoid syscalls as much as possible. We might've lost privileges.
1224 vppcom_app_exit (void)
1226 if (!pool_elts (vcm->workers))
1228 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1229 vcl_set_worker_index (~0);
1230 vcl_elog_stop (vcm);
1234 vcl_api_attach (void)
1236 if (vcm->cfg.vpp_app_socket_api)
1237 return vcl_sapi_attach ();
1239 return vcl_bapi_attach ();
1243 vcl_api_detach (vcl_worker_t * wrk)
1245 vcl_send_app_detach (wrk);
1247 if (vcm->cfg.vpp_app_socket_api)
1248 return vcl_sapi_detach (wrk);
1250 return vcl_bapi_disconnect_from_vpp ();
1254 * VPPCOM Public API functions
1257 vppcom_app_create (const char *app_name)
1259 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1264 VDBG (1, "already initialized");
1265 return VPPCOM_EEXIST;
1269 vppcom_cfg (&vcm->cfg);
1270 vcl_cfg = &vcm->cfg;
1272 vcm->main_cpu = pthread_self ();
1273 vcm->main_pid = getpid ();
1274 vcm->app_name = format (0, "%s", app_name);
1275 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1276 20 /* timeout in secs */ );
1277 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1278 clib_spinlock_init (&vcm->workers_lock);
1279 clib_rwlock_init (&vcm->segment_table_lock);
1280 atexit (vppcom_app_exit);
1281 vcl_elog_init (vcm);
1283 /* Allocate default worker */
1284 vcl_worker_alloc_and_init ();
1286 if ((rv = vcl_api_attach ()))
1289 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1290 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1296 vppcom_app_destroy (void)
1298 vcl_worker_t *wrk, *current_wrk;
1301 if (!pool_elts (vcm->workers))
1304 vcl_evt (VCL_EVT_DETACH, vcm);
1306 current_wrk = vcl_worker_get_current ();
1309 pool_foreach (wrk, vcm->workers, ({
1310 if (current_wrk != wrk)
1311 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1315 vcl_api_detach (current_wrk);
1316 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1318 vcl_elog_stop (vcm);
1321 * Free the heap and fix vcm
1323 heap = clib_mem_get_heap ();
1324 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1326 vcm = &_vppcom_main;
1331 vppcom_session_create (u8 proto, u8 is_nonblocking)
1333 vcl_worker_t *wrk = vcl_worker_get_current ();
1334 vcl_session_t *session;
1336 session = vcl_session_alloc (wrk);
1338 session->session_type = proto;
1339 session->session_state = VCL_STATE_CLOSED;
1340 session->vpp_handle = ~0;
1341 session->is_dgram = vcl_proto_is_dgram (proto);
1344 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1346 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1347 is_nonblocking, session_index);
1349 VDBG (0, "created session %u", session->session_index);
1351 return vcl_session_handle (session);
1355 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1356 vcl_session_handle_t sh, u8 do_disconnect)
1360 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1362 if (s->flags & VCL_SESSION_F_IS_VEP)
1364 u32 next_sh = s->vep.next_sh;
1365 while (next_sh != ~0)
1367 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1368 if (PREDICT_FALSE (rv < 0))
1369 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1370 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1371 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1372 next_sh = s->vep.next_sh;
1377 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1379 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1381 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1382 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1383 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1388 VDBG (1, "session %u [0x%llx] disconnect skipped",
1389 s->session_index, s->vpp_handle);
1393 if (s->session_state == VCL_STATE_LISTEN)
1395 rv = vppcom_session_unbind (sh);
1396 if (PREDICT_FALSE (rv < 0))
1397 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1398 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1399 vppcom_retval_str (rv));
1402 else if (vcl_session_is_ready (s)
1403 || (vcl_session_is_connectable_listener (wrk, s)))
1405 rv = vppcom_session_disconnect (sh);
1406 if (PREDICT_FALSE (rv < 0))
1407 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1408 " rv %d (%s)", s->session_index, s->vpp_handle,
1409 rv, vppcom_retval_str (rv));
1411 else if (s->session_state == VCL_STATE_DISCONNECT)
1413 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, s);
1414 vcl_send_session_reset_reply (mq, wrk->api_client_handle,
1417 else if (s->session_state == VCL_STATE_DETACHED)
1419 /* Should not happen. VPP cleaned up before app confirmed close */
1420 VDBG (0, "vpp freed session %d before close", s->session_index);
1424 s->session_state = VCL_STATE_CLOSED;
1426 /* Session is removed only after vpp confirms the disconnect */
1430 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1432 vcl_session_free (wrk, s);
1433 vcl_evt (VCL_EVT_CLOSE, s, rv);
1439 vppcom_session_close (uint32_t session_handle)
1441 vcl_worker_t *wrk = vcl_worker_get_current ();
1442 vcl_session_t *session;
1444 session = vcl_session_get_w_handle (wrk, session_handle);
1446 return VPPCOM_EBADFD;
1447 return vcl_session_cleanup (wrk, session, session_handle,
1448 1 /* do_disconnect */ );
1452 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1454 vcl_worker_t *wrk = vcl_worker_get_current ();
1455 vcl_session_t *session = 0;
1458 return VPPCOM_EINVAL;
1460 session = vcl_session_get_w_handle (wrk, session_handle);
1462 return VPPCOM_EBADFD;
1464 if (session->flags & VCL_SESSION_F_IS_VEP)
1466 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1467 session->session_index);
1468 return VPPCOM_EBADFD;
1471 session->transport.is_ip4 = ep->is_ip4;
1473 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1474 sizeof (ip4_address_t));
1476 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1477 sizeof (ip6_address_t));
1478 session->transport.lcl_port = ep->port;
1480 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1481 "proto %s", session->session_index, session_handle,
1482 session->transport.is_ip4 ? "IPv4" : "IPv6",
1483 format_ip46_address, &session->transport.lcl_ip,
1484 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1485 clib_net_to_host_u16 (session->transport.lcl_port),
1486 vppcom_proto_str (session->session_type));
1487 vcl_evt (VCL_EVT_BIND, session);
1489 if (session->session_type == VPPCOM_PROTO_UDP)
1490 vppcom_session_listen (session_handle, 10);
1496 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1498 vcl_worker_t *wrk = vcl_worker_get_current ();
1499 vcl_session_t *listen_session = 0;
1500 u64 listen_vpp_handle;
1503 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1504 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1505 return VPPCOM_EBADFD;
1507 if (q_len == 0 || q_len == ~0)
1508 q_len = vcm->cfg.listen_queue_size;
1510 listen_vpp_handle = listen_session->vpp_handle;
1511 if (listen_session->session_state == VCL_STATE_LISTEN)
1513 VDBG (0, "session %u [0x%llx]: already in listen state!",
1514 listen_sh, listen_vpp_handle);
1518 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1521 * Send listen request to vpp and wait for reply
1523 vcl_send_session_listen (wrk, listen_session);
1524 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1526 vcm->cfg.session_timeout);
1528 if (PREDICT_FALSE (rv))
1530 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1531 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1532 listen_sh, listen_session->vpp_handle, rv,
1533 vppcom_retval_str (rv));
1541 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1543 if (ls->flags & VCL_SESSION_F_IS_VEP)
1545 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1547 return VPPCOM_EBADFD;
1550 if ((ls->session_state != VCL_STATE_LISTEN)
1551 && (!vcl_session_is_connectable_listener (wrk, ls)))
1553 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1554 " (%s)", ls->vpp_handle, ls->session_state,
1555 vppcom_session_state_str (ls->session_state));
1556 return VPPCOM_EBADFD;
1562 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1564 if (!strcmp (proto_str, "TCP"))
1565 *proto = VPPCOM_PROTO_TCP;
1566 else if (!strcmp (proto_str, "tcp"))
1567 *proto = VPPCOM_PROTO_TCP;
1568 else if (!strcmp (proto_str, "UDP"))
1569 *proto = VPPCOM_PROTO_UDP;
1570 else if (!strcmp (proto_str, "udp"))
1571 *proto = VPPCOM_PROTO_UDP;
1572 else if (!strcmp (proto_str, "TLS"))
1573 *proto = VPPCOM_PROTO_TLS;
1574 else if (!strcmp (proto_str, "tls"))
1575 *proto = VPPCOM_PROTO_TLS;
1576 else if (!strcmp (proto_str, "QUIC"))
1577 *proto = VPPCOM_PROTO_QUIC;
1578 else if (!strcmp (proto_str, "quic"))
1579 *proto = VPPCOM_PROTO_QUIC;
1586 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1589 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1590 vcl_worker_t *wrk = vcl_worker_get_current ();
1591 session_accepted_msg_t accepted_msg;
1592 vcl_session_t *listen_session = 0;
1593 vcl_session_t *client_session = 0;
1594 vcl_session_msg_t *evt;
1595 svm_msg_q_msg_t msg;
1600 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1601 if (!listen_session)
1602 return VPPCOM_EBADFD;
1604 listen_session_index = listen_session->session_index;
1605 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1608 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1610 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1611 accept_flags = evt->flags;
1612 accepted_msg = evt->accepted_msg;
1616 is_nonblocking = vcl_session_has_attr (listen_session,
1617 VCL_SESS_ATTR_NONBLOCK);
1620 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1621 return VPPCOM_EAGAIN;
1623 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1624 return VPPCOM_EAGAIN;
1626 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1627 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1629 vcl_handle_mq_event (wrk, e);
1630 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1633 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1634 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1640 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1641 listen_session_index);
1642 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1643 return VPPCOM_ECONNABORTED;
1645 listen_session = vcl_session_get (wrk, listen_session_index);
1646 client_session = vcl_session_get (wrk, client_session_index);
1648 if (flags & O_NONBLOCK)
1649 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1651 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1652 " flags %d, is_nonblocking %u", listen_session->session_index,
1653 listen_session->vpp_handle, client_session_index,
1654 client_session->vpp_handle, flags,
1655 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1659 ep->is_ip4 = client_session->transport.is_ip4;
1660 ep->port = client_session->transport.rmt_port;
1661 if (client_session->transport.is_ip4)
1662 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1663 sizeof (ip4_address_t));
1665 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1666 sizeof (ip6_address_t));
1669 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1670 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1671 client_session_index, client_session->vpp_handle,
1672 format_ip46_address, &client_session->transport.rmt_ip,
1673 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1674 clib_net_to_host_u16 (client_session->transport.rmt_port),
1675 format_ip46_address, &client_session->transport.lcl_ip,
1676 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1677 clib_net_to_host_u16 (client_session->transport.lcl_port));
1678 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1679 client_session_index);
1682 * Session might have been closed already
1686 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1687 client_session->session_state = VCL_STATE_VPP_CLOSING;
1688 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1689 client_session->session_state = VCL_STATE_DISCONNECT;
1691 return vcl_session_handle (client_session);
1695 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1697 vcl_worker_t *wrk = vcl_worker_get_current ();
1698 vcl_session_t *session = 0;
1702 session = vcl_session_get_w_handle (wrk, session_handle);
1704 return VPPCOM_EBADFD;
1705 session_index = session->session_index;
1707 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1709 VDBG (0, "ERROR: cannot connect epoll session %u!",
1710 session->session_index);
1711 return VPPCOM_EBADFD;
1714 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1716 VDBG (0, "session handle %u [0x%llx]: session already "
1717 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1718 session_handle, session->vpp_handle,
1719 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1720 &session->transport.rmt_ip, session->transport.is_ip4 ?
1721 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1722 clib_net_to_host_u16 (session->transport.rmt_port),
1723 vppcom_proto_str (session->session_type), session->session_state,
1724 vppcom_session_state_str (session->session_state));
1728 /* Attempt to connect a connectionless listener */
1729 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1731 if (session->session_type != VPPCOM_PROTO_UDP)
1732 return VPPCOM_EINVAL;
1733 vcl_send_session_unlisten (wrk, session);
1734 session->session_state = VCL_STATE_CLOSED;
1737 session->transport.is_ip4 = server_ep->is_ip4;
1738 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1739 session->transport.rmt_port = server_ep->port;
1740 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1741 session->flags |= VCL_SESSION_F_CONNECTED;
1743 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1744 "port %d proto %s", session_handle,
1745 vppcom_session_state_str (session->session_state),
1746 session->transport.is_ip4 ? "IPv4" : "IPv6",
1747 format_ip46_address,
1748 &session->transport.rmt_ip, session->transport.is_ip4 ?
1749 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1750 clib_net_to_host_u16 (session->transport.rmt_port),
1751 vppcom_proto_str (session->session_type));
1753 vcl_send_session_connect (wrk, session);
1755 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1757 /* State set to STATE_UPDATED to ensure the session is not assumed
1758 * to be ready and to also allow the app to close it prior to vpp's
1759 * connected reply. */
1760 session->session_state = VCL_STATE_UPDATED;
1761 return VPPCOM_EINPROGRESS;
1765 * Wait for reply from vpp if blocking
1767 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1768 vcm->cfg.session_timeout);
1770 session = vcl_session_get (wrk, session_index);
1771 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1772 session->vpp_handle, rv ? "failed" : "succeeded");
1778 vppcom_session_stream_connect (uint32_t session_handle,
1779 uint32_t parent_session_handle)
1781 vcl_worker_t *wrk = vcl_worker_get_current ();
1782 vcl_session_t *session, *parent_session;
1783 u32 session_index, parent_session_index;
1786 session = vcl_session_get_w_handle (wrk, session_handle);
1788 return VPPCOM_EBADFD;
1789 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1790 if (!parent_session)
1791 return VPPCOM_EBADFD;
1793 session_index = session->session_index;
1794 parent_session_index = parent_session->session_index;
1795 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1797 VDBG (0, "ERROR: cannot connect epoll session %u!",
1798 session->session_index);
1799 return VPPCOM_EBADFD;
1802 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1804 VDBG (0, "session handle %u [0x%llx]: session already "
1805 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1806 session_handle, session->vpp_handle,
1807 parent_session_handle, parent_session->vpp_handle,
1808 vppcom_proto_str (session->session_type), session->session_state,
1809 vppcom_session_state_str (session->session_state));
1813 /* Connect to quic session specifics */
1814 session->transport.is_ip4 = parent_session->transport.is_ip4;
1815 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1816 session->transport.rmt_port = 0;
1817 session->parent_handle = parent_session->vpp_handle;
1819 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1820 session_handle, parent_session_handle, parent_session->vpp_handle);
1823 * Send connect request and wait for reply from vpp
1825 vcl_send_session_connect (wrk, session);
1826 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1827 vcm->cfg.session_timeout);
1829 session->listener_index = parent_session_index;
1830 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1832 parent_session->n_accepted_sessions++;
1834 session = vcl_session_get (wrk, session_index);
1835 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1836 session->vpp_handle, rv ? "failed" : "succeeded");
1842 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1844 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1848 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1851 vcl_worker_t *wrk = vcl_worker_get_current ();
1852 int rv, n_read = 0, is_nonblocking;
1853 vcl_session_t *s = 0;
1854 svm_fifo_t *rx_fifo;
1855 svm_msg_q_msg_t msg;
1860 if (PREDICT_FALSE (!buf))
1861 return VPPCOM_EINVAL;
1863 s = vcl_session_get_w_handle (wrk, session_handle);
1864 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1865 return VPPCOM_EBADFD;
1867 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1869 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1870 s->session_index, s->vpp_handle, s->session_state,
1871 vppcom_session_state_str (s->session_state));
1872 return vcl_session_closed_error (s);
1875 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1876 is_ct = vcl_session_is_ct (s);
1877 mq = wrk->app_event_queue;
1878 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1879 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1881 if (svm_fifo_is_empty_cons (rx_fifo))
1885 if (vcl_session_is_closing (s))
1886 return vcl_session_closing_error (s);
1888 svm_fifo_unset_event (s->rx_fifo);
1889 svm_fifo_unset_event (rx_fifo);
1890 return VPPCOM_EWOULDBLOCK;
1892 while (svm_fifo_is_empty_cons (rx_fifo))
1894 if (vcl_session_is_closing (s))
1895 return vcl_session_closing_error (s);
1898 svm_fifo_unset_event (s->rx_fifo);
1899 svm_fifo_unset_event (rx_fifo);
1900 svm_msg_q_lock (mq);
1901 if (svm_msg_q_is_empty (mq))
1902 svm_msg_q_wait (mq);
1904 svm_msg_q_sub_w_lock (mq, &msg);
1905 e = svm_msg_q_msg_data (mq, &msg);
1906 svm_msg_q_unlock (mq);
1907 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1908 vcl_handle_mq_event (wrk, e);
1909 svm_msg_q_free_msg (mq, &msg);
1916 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1918 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1923 if (svm_fifo_is_empty_cons (rx_fifo))
1926 svm_fifo_unset_event (s->rx_fifo);
1927 svm_fifo_unset_event (rx_fifo);
1928 if (!svm_fifo_is_empty_cons (rx_fifo)
1929 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1931 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1932 e->event_type = SESSION_IO_EVT_RX;
1933 e->session_index = s->session_index;
1936 else if (PREDICT_FALSE (rv < n))
1938 /* More data enqueued while reading. Try to drain it
1939 * or fill the buffer */
1945 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1947 svm_fifo_clear_deq_ntf (rx_fifo);
1948 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1949 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1952 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1953 s->vpp_handle, n_read, rx_fifo);
1959 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1961 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1965 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1967 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1971 vppcom_session_read_segments (uint32_t session_handle,
1972 vppcom_data_segment_t * ds, uint32_t n_segments,
1975 vcl_worker_t *wrk = vcl_worker_get_current ();
1976 int n_read = 0, is_nonblocking;
1977 vcl_session_t *s = 0;
1978 svm_fifo_t *rx_fifo;
1979 svm_msg_q_msg_t msg;
1984 s = vcl_session_get_w_handle (wrk, session_handle);
1985 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1986 return VPPCOM_EBADFD;
1988 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1989 return vcl_session_closed_error (s);
1991 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1992 is_ct = vcl_session_is_ct (s);
1993 mq = wrk->app_event_queue;
1994 rx_fifo = s->rx_fifo;
1995 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1998 svm_fifo_unset_event (s->rx_fifo);
2000 if (svm_fifo_is_empty_cons (rx_fifo))
2004 svm_fifo_unset_event (rx_fifo);
2005 return VPPCOM_EWOULDBLOCK;
2007 while (svm_fifo_is_empty_cons (rx_fifo))
2009 if (vcl_session_is_closing (s))
2010 return vcl_session_closing_error (s);
2012 svm_fifo_unset_event (rx_fifo);
2013 svm_msg_q_lock (mq);
2014 if (svm_msg_q_is_empty (mq))
2015 svm_msg_q_wait (mq);
2017 svm_msg_q_sub_w_lock (mq, &msg);
2018 e = svm_msg_q_msg_data (mq, &msg);
2019 svm_msg_q_unlock (mq);
2020 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
2021 vcl_handle_mq_event (wrk, e);
2022 svm_msg_q_free_msg (mq, &msg);
2026 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2027 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
2029 return VPPCOM_EAGAIN;
2031 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2033 svm_fifo_unset_event (s->rx_fifo);
2034 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2035 && svm_fifo_set_event (s->rx_fifo)
2036 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2039 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2040 e->event_type = SESSION_IO_EVT_RX;
2041 e->session_index = s->session_index;
2045 s->rx_bytes_pending += n_read;
2050 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2052 vcl_worker_t *wrk = vcl_worker_get_current ();
2055 s = vcl_session_get_w_handle (wrk, session_handle);
2056 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2059 svm_fifo_dequeue_drop (s->rx_fifo, n_bytes);
2061 ASSERT (s->rx_bytes_pending < n_bytes);
2062 s->rx_bytes_pending -= n_bytes;
2066 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2068 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2072 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2074 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2076 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2082 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2083 size_t n, u8 is_flush, u8 is_dgram)
2085 int n_write, is_nonblocking;
2086 session_evt_type_t et;
2087 svm_msg_q_msg_t msg;
2088 svm_fifo_t *tx_fifo;
2093 if (PREDICT_FALSE (!buf || n == 0))
2094 return VPPCOM_EINVAL;
2096 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2098 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2099 " session!", s->session_index, s->vpp_handle);
2100 return VPPCOM_EBADFD;
2103 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2105 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2106 s->session_index, s->vpp_handle, s->session_state,
2107 vppcom_session_state_str (s->session_state));
2108 return vcl_session_closed_error (s);;
2111 is_ct = vcl_session_is_ct (s);
2112 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2113 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2115 mq = wrk->app_event_queue;
2116 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2120 return VPPCOM_EWOULDBLOCK;
2122 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2124 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2125 if (vcl_session_is_closing (s))
2126 return vcl_session_closing_error (s);
2127 svm_msg_q_lock (mq);
2128 if (svm_msg_q_is_empty (mq))
2129 svm_msg_q_wait (mq);
2131 svm_msg_q_sub_w_lock (mq, &msg);
2132 e = svm_msg_q_msg_data (mq, &msg);
2133 svm_msg_q_unlock (mq);
2135 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2136 vcl_handle_mq_event (wrk, e);
2137 svm_msg_q_free_msg (mq, &msg);
2141 et = SESSION_IO_EVT_TX;
2142 if (is_flush && !is_ct)
2143 et = SESSION_IO_EVT_TX_FLUSH;
2146 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2147 s->vpp_evt_q, buf, n, et,
2148 0 /* do_evt */ , SVM_Q_WAIT);
2150 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2151 0 /* do_evt */ , SVM_Q_WAIT);
2153 if (svm_fifo_set_event (s->tx_fifo))
2154 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2157 /* The underlying fifo segment can run out of memory */
2158 if (PREDICT_FALSE (n_write < 0))
2159 return VPPCOM_EAGAIN;
2161 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2162 s->vpp_handle, n_write);
2168 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2170 vcl_worker_t *wrk = vcl_worker_get_current ();
2173 s = vcl_session_get_w_handle (wrk, session_handle);
2174 if (PREDICT_FALSE (!s))
2175 return VPPCOM_EBADFD;
2177 return vppcom_session_write_inline (wrk, s, buf, n,
2178 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2182 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2184 vcl_worker_t *wrk = vcl_worker_get_current ();
2187 s = vcl_session_get_w_handle (wrk, session_handle);
2188 if (PREDICT_FALSE (!s))
2189 return VPPCOM_EBADFD;
2191 return vppcom_session_write_inline (wrk, s, buf, n,
2192 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2195 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2196 if (PREDICT_FALSE (!_s->rx_fifo)) \
2198 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2200 if (!vcl_session_is_ct (_s)) \
2202 svm_fifo_unset_event (_s->rx_fifo); \
2203 if (svm_fifo_is_empty (_s->rx_fifo)) \
2206 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2208 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2209 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2215 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2216 unsigned long n_bits, unsigned long *read_map,
2217 unsigned long *write_map,
2218 unsigned long *except_map, u32 * bits_set)
2220 session_disconnected_msg_t *disconnected_msg;
2221 session_connected_msg_t *connected_msg;
2225 switch (e->event_type)
2227 case SESSION_IO_EVT_RX:
2228 sid = e->session_index;
2229 s = vcl_session_get (wrk, sid);
2230 if (!s || !vcl_session_is_open (s))
2232 vcl_fifo_rx_evt_valid_or_break (s);
2233 if (sid < n_bits && read_map)
2235 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2239 case SESSION_IO_EVT_TX:
2240 sid = e->session_index;
2241 s = vcl_session_get (wrk, sid);
2242 if (!s || !vcl_session_is_open (s))
2244 if (sid < n_bits && write_map)
2246 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2250 case SESSION_CTRL_EVT_ACCEPTED:
2252 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2254 s = vcl_session_get (wrk, e->session_index);
2257 sid = s->session_index;
2258 if (sid < n_bits && read_map)
2260 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2264 case SESSION_CTRL_EVT_CONNECTED:
2267 connected_msg = (session_connected_msg_t *) e->data;
2268 sid = vcl_session_connected_handler (wrk, connected_msg);
2271 sid = e->session_index;
2272 if (sid == VCL_INVALID_SESSION_INDEX)
2274 if (sid < n_bits && write_map)
2276 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2280 case SESSION_CTRL_EVT_DISCONNECTED:
2281 disconnected_msg = (session_disconnected_msg_t *) e->data;
2282 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2285 sid = s->session_index;
2286 if (sid < n_bits && except_map)
2288 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2292 case SESSION_CTRL_EVT_RESET:
2293 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2294 if (sid < n_bits && except_map)
2296 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2300 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2301 vcl_session_unlisten_reply_handler (wrk, e->data);
2303 case SESSION_CTRL_EVT_MIGRATED:
2304 vcl_session_migrated_handler (wrk, e->data);
2306 case SESSION_CTRL_EVT_CLEANUP:
2307 vcl_session_cleanup_handler (wrk, e->data);
2309 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2310 vcl_session_worker_update_reply_handler (wrk, e->data);
2312 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2313 vcl_session_req_worker_update_handler (wrk, e->data);
2315 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2316 vcl_session_app_add_segment_handler (wrk, e->data);
2318 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2319 vcl_session_app_del_segment_handler (wrk, e->data);
2321 case SESSION_CTRL_EVT_APP_WRK_RPC:
2322 vcl_worker_rpc_handler (wrk, e->data);
2325 clib_warning ("unhandled: %u", e->event_type);
2331 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2332 unsigned long n_bits, unsigned long *read_map,
2333 unsigned long *write_map, unsigned long *except_map,
2334 double time_to_wait, u32 * bits_set)
2336 svm_msg_q_msg_t *msg;
2340 svm_msg_q_lock (mq);
2341 if (svm_msg_q_is_empty (mq))
2345 svm_msg_q_unlock (mq);
2351 svm_msg_q_unlock (mq);
2354 else if (time_to_wait < 0)
2356 svm_msg_q_wait (mq);
2360 if (svm_msg_q_timedwait (mq, time_to_wait))
2362 svm_msg_q_unlock (mq);
2367 vcl_mq_dequeue_batch (wrk, mq, ~0);
2368 svm_msg_q_unlock (mq);
2370 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2372 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2373 e = svm_msg_q_msg_data (mq, msg);
2374 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2375 except_map, bits_set);
2376 svm_msg_q_free_msg (mq, msg);
2378 vec_reset_length (wrk->mq_msg_vector);
2379 vcl_handle_pending_wrk_updates (wrk);
2384 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2385 vcl_si_set * read_map, vcl_si_set * write_map,
2386 vcl_si_set * except_map, double time_to_wait,
2389 double wait = 0, start = 0;
2393 wait = time_to_wait;
2394 start = clib_time_now (&wrk->clib_time);
2399 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2400 write_map, except_map, wait, bits_set);
2406 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2414 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2415 vcl_si_set * read_map, vcl_si_set * write_map,
2416 vcl_si_set * except_map, double time_to_wait,
2419 vcl_mq_evt_conn_t *mqc;
2420 int __clib_unused n_read;
2424 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2425 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2426 vec_len (wrk->mq_events), time_to_wait);
2427 for (i = 0; i < n_mq_evts; i++)
2429 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2430 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2431 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2432 except_map, 0, bits_set);
2435 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2439 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2440 vcl_si_set * except_map, double time_to_wait)
2442 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2443 vcl_worker_t *wrk = vcl_worker_get_current ();
2444 vcl_session_t *session = 0;
2447 if (n_bits && read_map)
2449 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2450 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2451 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2452 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2454 if (n_bits && write_map)
2456 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2457 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2458 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2459 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2461 if (n_bits && except_map)
2463 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2464 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2465 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2466 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2476 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2477 if (!(session = vcl_session_get (wrk, sid)))
2479 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2484 if (vcl_session_write_ready (session))
2486 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2490 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2497 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2498 if (!(session = vcl_session_get (wrk, sid)))
2500 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2505 if (vcl_session_read_ready (session))
2507 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2515 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2517 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2518 read_map, write_map, except_map, &bits_set);
2520 vec_reset_length (wrk->unhandled_evts_vector);
2522 if (vcm->cfg.use_mq_eventfd)
2523 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2524 time_to_wait, &bits_set);
2526 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2527 time_to_wait, &bits_set);
2533 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2535 vppcom_epoll_t *vep;
2536 u32 sh = vep_handle;
2539 if (VPPCOM_DEBUG <= 2)
2542 s = vcl_session_get_w_handle (wrk, vep_handle);
2543 if (PREDICT_FALSE (!s))
2545 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2548 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2550 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2554 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2557 " is_vep_session = %u\n"
2558 " next_sh = 0x%x (%u)\n"
2559 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2560 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2562 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2564 s = vcl_session_get_w_handle (wrk, sh);
2565 if (PREDICT_FALSE (!s))
2567 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2570 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2572 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2574 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2576 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2580 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2581 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2582 sh, s->vep.vep_sh, vep_handle);
2583 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2585 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2587 " next_sh = 0x%x (%u)\n"
2588 " prev_sh = 0x%x (%u)\n"
2589 " vep_sh = 0x%x (%u)\n"
2590 " ev.events = 0x%x\n"
2591 " ev.data.u64 = 0x%llx\n"
2594 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2595 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2596 vep->ev.data.u64, vep->et_mask);
2601 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2605 vppcom_epoll_create (void)
2607 vcl_worker_t *wrk = vcl_worker_get_current ();
2608 vcl_session_t *vep_session;
2610 vep_session = vcl_session_alloc (wrk);
2612 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2613 vep_session->vep.vep_sh = ~0;
2614 vep_session->vep.next_sh = ~0;
2615 vep_session->vep.prev_sh = ~0;
2616 vep_session->vpp_handle = ~0;
2618 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2619 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2621 return vcl_session_handle (vep_session);
2625 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2626 struct epoll_event *event)
2628 vcl_worker_t *wrk = vcl_worker_get_current ();
2629 vcl_session_t *vep_session;
2634 if (vep_handle == session_handle)
2636 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2637 return VPPCOM_EINVAL;
2640 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2641 if (PREDICT_FALSE (!vep_session))
2643 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2644 return VPPCOM_EBADFD;
2646 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2648 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2649 return VPPCOM_EINVAL;
2652 ASSERT (vep_session->vep.vep_sh == ~0);
2653 ASSERT (vep_session->vep.prev_sh == ~0);
2655 s = vcl_session_get_w_handle (wrk, session_handle);
2656 if (PREDICT_FALSE (!s))
2658 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2659 return VPPCOM_EBADFD;
2661 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2663 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2664 return VPPCOM_EINVAL;
2670 if (PREDICT_FALSE (!event))
2672 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2673 return VPPCOM_EINVAL;
2675 if (vep_session->vep.next_sh != ~0)
2677 vcl_session_t *next_session;
2678 next_session = vcl_session_get_w_handle (wrk,
2679 vep_session->vep.next_sh);
2680 if (PREDICT_FALSE (!next_session))
2682 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2683 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2684 return VPPCOM_EBADFD;
2686 ASSERT (next_session->vep.prev_sh == vep_handle);
2687 next_session->vep.prev_sh = session_handle;
2689 s->vep.next_sh = vep_session->vep.next_sh;
2690 s->vep.prev_sh = vep_handle;
2691 s->vep.vep_sh = vep_handle;
2692 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2694 s->flags &= ~VCL_SESSION_F_IS_VEP;
2695 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2696 vep_session->vep.next_sh = session_handle;
2698 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2699 if (txf && (event->events & EPOLLOUT))
2700 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2702 /* Generate EPOLLOUT if tx fifo not full */
2703 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2705 session_event_t e = { 0 };
2706 e.event_type = SESSION_IO_EVT_TX;
2707 e.session_index = s->session_index;
2708 vec_add1 (wrk->unhandled_evts_vector, e);
2710 /* Generate EPOLLIN if rx fifo has data */
2711 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2713 session_event_t e = { 0 };
2714 e.event_type = SESSION_IO_EVT_RX;
2715 e.session_index = s->session_index;
2716 vec_add1 (wrk->unhandled_evts_vector, e);
2718 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2719 vep_handle, session_handle, event->events, event->data.u64);
2720 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2724 if (PREDICT_FALSE (!event))
2726 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2730 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2732 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2736 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2738 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2739 session_handle, s->vep.vep_sh, vep_handle);
2744 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2745 if ((event->events & EPOLLOUT) &&
2746 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2748 session_event_t e = { 0 };
2749 e.event_type = SESSION_IO_EVT_TX;
2750 e.session_index = s->session_index;
2751 vec_add1 (wrk->unhandled_evts_vector, e);
2753 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2755 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2756 if (event->events & EPOLLOUT)
2757 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2759 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2760 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2761 vep_handle, session_handle, event->events, event->data.u64);
2765 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2767 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2771 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2773 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2774 session_handle, s->vep.vep_sh, vep_handle);
2779 if (s->vep.prev_sh == vep_handle)
2780 vep_session->vep.next_sh = s->vep.next_sh;
2783 vcl_session_t *prev_session;
2784 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2785 if (PREDICT_FALSE (!prev_session))
2787 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2788 s->vep.prev_sh, session_handle);
2789 return VPPCOM_EBADFD;
2791 ASSERT (prev_session->vep.next_sh == session_handle);
2792 prev_session->vep.next_sh = s->vep.next_sh;
2794 if (s->vep.next_sh != ~0)
2796 vcl_session_t *next_session;
2797 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2798 if (PREDICT_FALSE (!next_session))
2800 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2801 s->vep.next_sh, session_handle);
2802 return VPPCOM_EBADFD;
2804 ASSERT (next_session->vep.prev_sh == session_handle);
2805 next_session->vep.prev_sh = s->vep.prev_sh;
2808 memset (&s->vep, 0, sizeof (s->vep));
2809 s->vep.next_sh = ~0;
2810 s->vep.prev_sh = ~0;
2812 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2814 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2816 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2818 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2820 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2824 VDBG (0, "Invalid operation (%d)!", op);
2828 vep_verify_epoll_chain (wrk, vep_handle);
2835 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2836 struct epoll_event *events, u32 * num_ev)
2838 session_disconnected_msg_t *disconnected_msg;
2839 session_connected_msg_t *connected_msg;
2840 u32 sid = ~0, session_events;
2841 u64 session_evt_data = ~0;
2845 switch (e->event_type)
2847 case SESSION_IO_EVT_RX:
2848 sid = e->session_index;
2849 s = vcl_session_get (wrk, sid);
2850 if (vcl_session_is_closed (s))
2852 vcl_fifo_rx_evt_valid_or_break (s);
2853 session_events = s->vep.ev.events;
2854 if (!(EPOLLIN & s->vep.ev.events)
2855 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2858 events[*num_ev].events |= EPOLLIN;
2859 session_evt_data = s->vep.ev.data.u64;
2860 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2862 case SESSION_IO_EVT_TX:
2863 sid = e->session_index;
2864 s = vcl_session_get (wrk, sid);
2865 if (vcl_session_is_closed (s))
2867 session_events = s->vep.ev.events;
2868 if (!(EPOLLOUT & session_events))
2871 events[*num_ev].events |= EPOLLOUT;
2872 session_evt_data = s->vep.ev.data.u64;
2873 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2874 s->ct_tx_fifo : s->tx_fifo);
2876 case SESSION_CTRL_EVT_ACCEPTED:
2878 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2880 s = vcl_session_get (wrk, e->session_index);
2883 session_events = s->vep.ev.events;
2884 sid = s->session_index;
2885 if (!(EPOLLIN & session_events))
2888 events[*num_ev].events |= EPOLLIN;
2889 session_evt_data = s->vep.ev.data.u64;
2891 case SESSION_CTRL_EVT_CONNECTED:
2894 connected_msg = (session_connected_msg_t *) e->data;
2895 sid = vcl_session_connected_handler (wrk, connected_msg);
2898 sid = e->session_index;
2899 s = vcl_session_get (wrk, sid);
2900 if (vcl_session_is_closed (s))
2902 session_events = s->vep.ev.events;
2903 /* Generate EPOLLOUT because there's no connected event */
2904 if (!(EPOLLOUT & session_events))
2907 events[*num_ev].events |= EPOLLOUT;
2908 session_evt_data = s->vep.ev.data.u64;
2909 if (s->session_state == VCL_STATE_DETACHED)
2910 events[*num_ev].events |= EPOLLHUP;
2912 case SESSION_CTRL_EVT_DISCONNECTED:
2913 disconnected_msg = (session_disconnected_msg_t *) e->data;
2914 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2915 if (vcl_session_is_closed (s))
2917 sid = s->session_index;
2918 session_events = s->vep.ev.events;
2920 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2921 session_evt_data = s->vep.ev.data.u64;
2923 case SESSION_CTRL_EVT_RESET:
2924 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2925 s = vcl_session_get (wrk, sid);
2926 if (vcl_session_is_closed (s))
2928 session_events = s->vep.ev.events;
2930 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2931 session_evt_data = s->vep.ev.data.u64;
2933 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2934 vcl_session_unlisten_reply_handler (wrk, e->data);
2936 case SESSION_CTRL_EVT_MIGRATED:
2937 vcl_session_migrated_handler (wrk, e->data);
2939 case SESSION_CTRL_EVT_CLEANUP:
2940 vcl_session_cleanup_handler (wrk, e->data);
2942 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2943 vcl_session_req_worker_update_handler (wrk, e->data);
2945 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2946 vcl_session_worker_update_reply_handler (wrk, e->data);
2948 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2949 vcl_session_app_add_segment_handler (wrk, e->data);
2951 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2952 vcl_session_app_del_segment_handler (wrk, e->data);
2954 case SESSION_CTRL_EVT_APP_WRK_RPC:
2955 vcl_worker_rpc_handler (wrk, e->data);
2958 VDBG (0, "unhandled: %u", e->event_type);
2964 events[*num_ev].data.u64 = session_evt_data;
2965 if (EPOLLONESHOT & session_events)
2967 s = vcl_session_get (wrk, sid);
2968 s->vep.ev.events = 0;
2975 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2976 struct epoll_event *events, u32 maxevents,
2977 double wait_for_time, u32 * num_ev)
2979 svm_msg_q_msg_t *msg;
2983 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2984 goto handle_dequeued;
2986 svm_msg_q_lock (mq);
2987 if (svm_msg_q_is_empty (mq))
2991 svm_msg_q_unlock (mq);
2994 else if (wait_for_time < 0)
2996 svm_msg_q_wait (mq);
3000 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3002 svm_msg_q_unlock (mq);
3007 ASSERT (maxevents > *num_ev);
3008 vcl_mq_dequeue_batch (wrk, mq, ~0);
3009 svm_msg_q_unlock (mq);
3012 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3014 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3015 e = svm_msg_q_msg_data (mq, msg);
3016 if (*num_ev < maxevents)
3017 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3019 vcl_handle_mq_event (wrk, e);
3020 svm_msg_q_free_msg (mq, msg);
3022 vec_reset_length (wrk->mq_msg_vector);
3023 vcl_handle_pending_wrk_updates (wrk);
3028 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
3029 int maxevents, u32 n_evts, double wait_for_time)
3031 double wait = 0, start = 0, now;
3035 wait = wait_for_time;
3036 start = clib_time_now (&wrk->clib_time);
3041 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3048 now = clib_time_now (&wrk->clib_time);
3049 wait -= (now - start) * 1e3;
3058 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3059 int maxevents, u32 n_evts, double wait_for_time)
3061 vcl_mq_evt_conn_t *mqc;
3062 int __clib_unused n_read;
3066 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3068 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3069 vec_len (wrk->mq_events), wait_for_time);
3070 for (i = 0; i < n_mq_evts; i++)
3072 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3073 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3074 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3076 if (!n_evts && n_mq_evts > 0)
3079 return (int) n_evts;
3083 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3084 int maxevents, double wait_for_time)
3086 vcl_worker_t *wrk = vcl_worker_get_current ();
3087 vcl_session_t *vep_session;
3091 if (PREDICT_FALSE (maxevents <= 0))
3093 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3094 return VPPCOM_EINVAL;
3097 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3099 return VPPCOM_EBADFD;
3101 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3103 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3104 return VPPCOM_EINVAL;
3107 memset (events, 0, sizeof (*events) * maxevents);
3109 if (vec_len (wrk->unhandled_evts_vector))
3111 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3113 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3115 if (n_evts == maxevents)
3117 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3121 vec_reset_length (wrk->unhandled_evts_vector);
3124 if (vcm->cfg.use_mq_eventfd)
3125 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3128 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3133 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3134 void *buffer, uint32_t * buflen)
3136 vcl_worker_t *wrk = vcl_worker_get_current ();
3137 vcl_session_t *session;
3139 u32 *flags = buffer, tmp_flags = 0;
3140 vppcom_endpt_t *ep = buffer;
3142 session = vcl_session_get_w_handle (wrk, session_handle);
3144 return VPPCOM_EBADFD;
3148 case VPPCOM_ATTR_GET_NREAD:
3149 rv = vcl_session_read_ready (session);
3150 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3154 case VPPCOM_ATTR_GET_NWRITE:
3155 rv = vcl_session_write_ready (session);
3156 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3160 case VPPCOM_ATTR_GET_FLAGS:
3161 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3165 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3167 *buflen = sizeof (*flags);
3168 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3169 "is_nonblocking = %u", session_handle, *flags,
3170 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3176 case VPPCOM_ATTR_SET_FLAGS:
3177 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3179 if (*flags & O_NONBLOCK)
3180 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3182 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3184 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3185 " is_nonblocking = %u", session_handle, *flags,
3186 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3192 case VPPCOM_ATTR_GET_PEER_ADDR:
3193 if (PREDICT_TRUE (buffer && buflen &&
3194 (*buflen >= sizeof (*ep)) && ep->ip))
3196 ep->is_ip4 = session->transport.is_ip4;
3197 ep->port = session->transport.rmt_port;
3198 if (session->transport.is_ip4)
3199 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3200 sizeof (ip4_address_t));
3202 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3203 sizeof (ip6_address_t));
3204 *buflen = sizeof (*ep);
3205 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3206 "addr = %U, port %u", session_handle, ep->is_ip4,
3207 format_ip46_address, &session->transport.rmt_ip,
3208 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3209 clib_net_to_host_u16 (ep->port));
3215 case VPPCOM_ATTR_GET_LCL_ADDR:
3216 if (PREDICT_TRUE (buffer && buflen &&
3217 (*buflen >= sizeof (*ep)) && ep->ip))
3219 ep->is_ip4 = session->transport.is_ip4;
3220 ep->port = session->transport.lcl_port;
3221 if (session->transport.is_ip4)
3222 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3223 sizeof (ip4_address_t));
3225 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3226 sizeof (ip6_address_t));
3227 *buflen = sizeof (*ep);
3228 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3229 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3230 &session->transport.lcl_ip,
3231 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3232 clib_net_to_host_u16 (ep->port));
3238 case VPPCOM_ATTR_SET_LCL_ADDR:
3239 if (PREDICT_TRUE (buffer && buflen &&
3240 (*buflen >= sizeof (*ep)) && ep->ip))
3242 session->transport.is_ip4 = ep->is_ip4;
3243 session->transport.lcl_port = ep->port;
3244 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3245 *buflen = sizeof (*ep);
3246 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3247 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3248 &session->transport.lcl_ip,
3249 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3250 clib_net_to_host_u16 (ep->port));
3256 case VPPCOM_ATTR_GET_LIBC_EPFD:
3257 rv = session->libc_epfd;
3258 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3261 case VPPCOM_ATTR_SET_LIBC_EPFD:
3262 if (PREDICT_TRUE (buffer && buflen &&
3263 (*buflen == sizeof (session->libc_epfd))))
3265 session->libc_epfd = *(int *) buffer;
3266 *buflen = sizeof (session->libc_epfd);
3268 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3269 session->libc_epfd, *buflen);
3275 case VPPCOM_ATTR_GET_PROTOCOL:
3276 if (buffer && buflen && (*buflen >= sizeof (int)))
3278 *(int *) buffer = session->session_type;
3279 *buflen = sizeof (int);
3281 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3282 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3288 case VPPCOM_ATTR_GET_LISTEN:
3289 if (buffer && buflen && (*buflen >= sizeof (int)))
3291 *(int *) buffer = vcl_session_has_attr (session,
3292 VCL_SESS_ATTR_LISTEN);
3293 *buflen = sizeof (int);
3295 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3302 case VPPCOM_ATTR_GET_ERROR:
3303 if (buffer && buflen && (*buflen >= sizeof (int)))
3305 *(int *) buffer = 0;
3306 *buflen = sizeof (int);
3308 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3309 *(int *) buffer, *buflen);
3315 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3316 if (buffer && buflen && (*buflen >= sizeof (u32)))
3320 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3322 svm_fifo_size (session->tx_fifo) :
3323 vcm->cfg.tx_fifo_size);
3324 *buflen = sizeof (u32);
3326 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3327 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3334 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3335 if (buffer && buflen && (*buflen == sizeof (u32)))
3338 session->sndbuf_size = *(u32 *) buffer;
3339 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3340 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3347 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3348 if (buffer && buflen && (*buflen >= sizeof (u32)))
3352 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3354 svm_fifo_size (session->rx_fifo) :
3355 vcm->cfg.rx_fifo_size);
3356 *buflen = sizeof (u32);
3358 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3359 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3365 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3366 if (buffer && buflen && (*buflen == sizeof (u32)))
3369 session->rcvbuf_size = *(u32 *) buffer;
3370 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3371 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3378 case VPPCOM_ATTR_GET_REUSEADDR:
3379 if (buffer && buflen && (*buflen >= sizeof (int)))
3382 *(int *) buffer = vcl_session_has_attr (session,
3383 VCL_SESS_ATTR_REUSEADDR);
3384 *buflen = sizeof (int);
3386 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3387 *(int *) buffer, *buflen);
3393 case VPPCOM_ATTR_SET_REUSEADDR:
3394 if (buffer && buflen && (*buflen == sizeof (int)) &&
3395 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3398 if (*(int *) buffer)
3399 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3401 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3403 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3404 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3411 case VPPCOM_ATTR_GET_REUSEPORT:
3412 if (buffer && buflen && (*buflen >= sizeof (int)))
3415 *(int *) buffer = vcl_session_has_attr (session,
3416 VCL_SESS_ATTR_REUSEPORT);
3417 *buflen = sizeof (int);
3419 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3420 *(int *) buffer, *buflen);
3426 case VPPCOM_ATTR_SET_REUSEPORT:
3427 if (buffer && buflen && (*buflen == sizeof (int)) &&
3428 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3431 if (*(int *) buffer)
3432 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3434 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3436 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3437 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3444 case VPPCOM_ATTR_GET_BROADCAST:
3445 if (buffer && buflen && (*buflen >= sizeof (int)))
3448 *(int *) buffer = vcl_session_has_attr (session,
3449 VCL_SESS_ATTR_BROADCAST);
3450 *buflen = sizeof (int);
3452 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3453 *(int *) buffer, *buflen);
3459 case VPPCOM_ATTR_SET_BROADCAST:
3460 if (buffer && buflen && (*buflen == sizeof (int)))
3463 if (*(int *) buffer)
3464 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3466 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3468 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3469 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3476 case VPPCOM_ATTR_GET_V6ONLY:
3477 if (buffer && buflen && (*buflen >= sizeof (int)))
3480 *(int *) buffer = vcl_session_has_attr (session,
3481 VCL_SESS_ATTR_V6ONLY);
3482 *buflen = sizeof (int);
3484 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3485 *(int *) buffer, *buflen);
3491 case VPPCOM_ATTR_SET_V6ONLY:
3492 if (buffer && buflen && (*buflen == sizeof (int)))
3495 if (*(int *) buffer)
3496 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3498 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3500 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3501 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3508 case VPPCOM_ATTR_GET_KEEPALIVE:
3509 if (buffer && buflen && (*buflen >= sizeof (int)))
3512 *(int *) buffer = vcl_session_has_attr (session,
3513 VCL_SESS_ATTR_KEEPALIVE);
3514 *buflen = sizeof (int);
3516 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3517 *(int *) buffer, *buflen);
3523 case VPPCOM_ATTR_SET_KEEPALIVE:
3524 if (buffer && buflen && (*buflen == sizeof (int)))
3527 if (*(int *) buffer)
3528 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3530 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3532 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3533 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3540 case VPPCOM_ATTR_GET_TCP_NODELAY:
3541 if (buffer && buflen && (*buflen >= sizeof (int)))
3544 *(int *) buffer = vcl_session_has_attr (session,
3545 VCL_SESS_ATTR_TCP_NODELAY);
3546 *buflen = sizeof (int);
3548 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3549 *(int *) buffer, *buflen);
3555 case VPPCOM_ATTR_SET_TCP_NODELAY:
3556 if (buffer && buflen && (*buflen == sizeof (int)))
3559 if (*(int *) buffer)
3560 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3562 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3564 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3565 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3572 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3573 if (buffer && buflen && (*buflen >= sizeof (int)))
3576 *(int *) buffer = vcl_session_has_attr (session,
3577 VCL_SESS_ATTR_TCP_KEEPIDLE);
3578 *buflen = sizeof (int);
3580 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3581 *(int *) buffer, *buflen);
3587 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3588 if (buffer && buflen && (*buflen == sizeof (int)))
3591 if (*(int *) buffer)
3592 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3594 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3596 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3597 vcl_session_has_attr (session,
3598 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3604 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3605 if (buffer && buflen && (*buflen >= sizeof (int)))
3608 *(int *) buffer = vcl_session_has_attr (session,
3609 VCL_SESS_ATTR_TCP_KEEPINTVL);
3610 *buflen = sizeof (int);
3612 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3613 *(int *) buffer, *buflen);
3619 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3620 if (buffer && buflen && (*buflen == sizeof (int)))
3623 if (*(int *) buffer)
3624 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3626 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3628 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3629 vcl_session_has_attr (session,
3630 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3636 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3637 if (buffer && buflen && (*buflen >= sizeof (u32)))
3640 *(u32 *) buffer = session->user_mss;
3641 *buflen = sizeof (int);
3643 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3644 *(int *) buffer, *buflen);
3650 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3651 if (buffer && buflen && (*buflen == sizeof (u32)))
3654 session->user_mss = *(u32 *) buffer;
3656 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3657 session->user_mss, *buflen);
3663 case VPPCOM_ATTR_SET_SHUT:
3664 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3665 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3666 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3667 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3670 case VPPCOM_ATTR_GET_SHUT:
3671 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3673 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3676 *(int *) buffer = SHUT_RD;
3677 else if (tmp_flags == 2)
3678 *(int *) buffer = SHUT_WR;
3679 else if (tmp_flags == 3)
3680 *(int *) buffer = SHUT_RDWR;
3681 *buflen = sizeof (int);
3684 case VPPCOM_ATTR_SET_CONNECTED:
3685 session->flags |= VCL_SESSION_F_CONNECTED;
3697 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3698 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3700 vcl_worker_t *wrk = vcl_worker_get_current ();
3701 vcl_session_t *session;
3705 rv = vppcom_session_read (session_handle, buffer, buflen);
3706 else if (flags & MSG_PEEK)
3707 rv = vppcom_session_peek (session_handle, buffer, buflen);
3710 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3711 return VPPCOM_EAFNOSUPPORT;
3716 session = vcl_session_get_w_handle (wrk, session_handle);
3717 if (session->transport.is_ip4)
3718 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3719 sizeof (ip4_address_t));
3721 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3722 sizeof (ip6_address_t));
3723 ep->is_ip4 = session->transport.is_ip4;
3724 ep->port = session->transport.rmt_port;
3731 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3732 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3734 vcl_worker_t *wrk = vcl_worker_get_current ();
3737 s = vcl_session_get_w_handle (wrk, session_handle);
3739 return VPPCOM_EBADFD;
3742 return VPPCOM_EINVAL;
3746 if (!vcl_session_is_cl (s))
3747 return VPPCOM_EINVAL;
3749 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3750 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3752 u32 session_index = s->session_index;
3753 f64 timeout = vcm->cfg.session_timeout;
3756 vcl_send_session_connect (wrk, s);
3757 rv = vppcom_wait_for_session_state_change (session_index,
3762 s = vcl_session_get (wrk, session_index);
3765 s->transport.is_ip4 = ep->is_ip4;
3766 s->transport.rmt_port = ep->port;
3767 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3772 // TBD check the flags and do the right thing
3773 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3776 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3777 s->is_dgram ? 1 : 0));
3781 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3783 vcl_worker_t *wrk = vcl_worker_get_current ();
3784 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3785 u32 i, keep_trying = 1;
3786 svm_msg_q_msg_t msg;
3790 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3793 return VPPCOM_EFAULT;
3797 vcl_session_t *session;
3799 /* Dequeue all events and drop all unhandled io events */
3800 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3802 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3803 vcl_handle_mq_event (wrk, e);
3804 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3806 vec_reset_length (wrk->unhandled_evts_vector);
3808 for (i = 0; i < n_sids; i++)
3810 session = vcl_session_get (wrk, vp[i].sh);
3813 vp[i].revents = POLLHUP;
3820 if (POLLIN & vp[i].events)
3822 rv = vcl_session_read_ready (session);
3825 vp[i].revents |= POLLIN;
3832 case VPPCOM_ECONNRESET:
3833 vp[i].revents = POLLHUP;
3837 vp[i].revents = POLLERR;
3844 if (POLLOUT & vp[i].events)
3846 rv = vcl_session_write_ready (session);
3849 vp[i].revents |= POLLOUT;
3856 case VPPCOM_ECONNRESET:
3857 vp[i].revents = POLLHUP;
3861 vp[i].revents = POLLERR;
3868 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3870 vp[i].revents = POLLNVAL;
3874 if (wait_for_time != -1)
3875 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3877 while ((num_ev == 0) && keep_trying);
3883 vppcom_mq_epoll_fd (void)
3885 vcl_worker_t *wrk = vcl_worker_get_current ();
3886 return wrk->mqs_epfd;
3890 vppcom_session_index (vcl_session_handle_t session_handle)
3892 return session_handle & 0xFFFFFF;
3896 vppcom_session_worker (vcl_session_handle_t session_handle)
3898 return session_handle >> 24;
3902 vppcom_worker_register (void)
3904 if (!vcl_worker_alloc_and_init ())
3905 return VPPCOM_EEXIST;
3907 if (vcl_worker_register_with_vpp ())
3908 return VPPCOM_EEXIST;
3914 vppcom_worker_unregister (void)
3916 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3917 vcl_set_worker_index (~0);
3921 vppcom_worker_index_set (int index)
3923 vcl_set_worker_index (index);
3927 vppcom_worker_index (void)
3929 return vcl_get_worker_index ();
3933 vppcom_worker_mqs_epfd (void)
3935 vcl_worker_t *wrk = vcl_worker_get_current ();
3936 if (!vcm->cfg.use_mq_eventfd)
3938 return wrk->mqs_epfd;
3942 vppcom_session_is_connectable_listener (uint32_t session_handle)
3944 vcl_session_t *session;
3945 vcl_worker_t *wrk = vcl_worker_get_current ();
3946 session = vcl_session_get_w_handle (wrk, session_handle);
3948 return VPPCOM_EBADFD;
3949 return vcl_session_is_connectable_listener (wrk, session);
3953 vppcom_session_listener (uint32_t session_handle)
3955 vcl_worker_t *wrk = vcl_worker_get_current ();
3956 vcl_session_t *listen_session, *session;
3957 session = vcl_session_get_w_handle (wrk, session_handle);
3959 return VPPCOM_EBADFD;
3960 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3961 return VPPCOM_EBADFD;
3962 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3963 if (!listen_session)
3964 return VPPCOM_EBADFD;
3965 return vcl_session_handle (listen_session);
3969 vppcom_session_n_accepted (uint32_t session_handle)
3971 vcl_worker_t *wrk = vcl_worker_get_current ();
3972 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3974 return VPPCOM_EBADFD;
3975 return session->n_accepted_sessions;
3979 vppcom_proto_str (vppcom_proto_t proto)
3981 char const *proto_str;
3985 case VPPCOM_PROTO_TCP:
3988 case VPPCOM_PROTO_UDP:
3991 case VPPCOM_PROTO_TLS:
3994 case VPPCOM_PROTO_QUIC:
3998 proto_str = "UNKNOWN";
4005 vppcom_retval_str (int retval)
4016 st = "VPPCOM_EAGAIN";
4020 st = "VPPCOM_EFAULT";
4024 st = "VPPCOM_ENOMEM";
4028 st = "VPPCOM_EINVAL";
4032 st = "VPPCOM_EBADFD";
4035 case VPPCOM_EAFNOSUPPORT:
4036 st = "VPPCOM_EAFNOSUPPORT";
4039 case VPPCOM_ECONNABORTED:
4040 st = "VPPCOM_ECONNABORTED";
4043 case VPPCOM_ECONNRESET:
4044 st = "VPPCOM_ECONNRESET";
4047 case VPPCOM_ENOTCONN:
4048 st = "VPPCOM_ENOTCONN";
4051 case VPPCOM_ECONNREFUSED:
4052 st = "VPPCOM_ECONNREFUSED";
4055 case VPPCOM_ETIMEDOUT:
4056 st = "VPPCOM_ETIMEDOUT";
4060 st = "UNKNOWN_STATE";
4068 * fd.io coding-style-patch-verification: ON
4071 * eval: (c-set-style "gnu")