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 = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1995 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1997 if (svm_fifo_is_empty_cons (rx_fifo))
2002 svm_fifo_unset_event (s->rx_fifo);
2003 svm_fifo_unset_event (rx_fifo);
2004 return VPPCOM_EWOULDBLOCK;
2006 while (svm_fifo_is_empty_cons (rx_fifo))
2008 if (vcl_session_is_closing (s))
2009 return vcl_session_closing_error (s);
2012 svm_fifo_unset_event (s->rx_fifo);
2013 svm_fifo_unset_event (rx_fifo);
2014 svm_msg_q_lock (mq);
2015 if (svm_msg_q_is_empty (mq))
2016 svm_msg_q_wait (mq);
2018 svm_msg_q_sub_w_lock (mq, &msg);
2019 e = svm_msg_q_msg_data (mq, &msg);
2020 svm_msg_q_unlock (mq);
2021 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
2022 vcl_handle_mq_event (wrk, e);
2023 svm_msg_q_free_msg (mq, &msg);
2027 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2028 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
2030 return VPPCOM_EAGAIN;
2032 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2035 svm_fifo_unset_event (s->rx_fifo);
2036 svm_fifo_unset_event (rx_fifo);
2037 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2038 && svm_fifo_set_event (rx_fifo)
2039 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2042 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2043 e->event_type = SESSION_IO_EVT_RX;
2044 e->session_index = s->session_index;
2048 s->rx_bytes_pending += n_read;
2053 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2055 vcl_worker_t *wrk = vcl_worker_get_current ();
2059 s = vcl_session_get_w_handle (wrk, session_handle);
2060 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2063 is_ct = vcl_session_is_ct (s);
2064 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2066 ASSERT (s->rx_bytes_pending < n_bytes);
2067 s->rx_bytes_pending -= n_bytes;
2071 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2073 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2077 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2079 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2081 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2087 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2088 size_t n, u8 is_flush, u8 is_dgram)
2090 int n_write, is_nonblocking;
2091 session_evt_type_t et;
2092 svm_msg_q_msg_t msg;
2093 svm_fifo_t *tx_fifo;
2098 if (PREDICT_FALSE (!buf || n == 0))
2099 return VPPCOM_EINVAL;
2101 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2103 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2104 " session!", s->session_index, s->vpp_handle);
2105 return VPPCOM_EBADFD;
2108 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2110 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2111 s->session_index, s->vpp_handle, s->session_state,
2112 vppcom_session_state_str (s->session_state));
2113 return vcl_session_closed_error (s);;
2116 is_ct = vcl_session_is_ct (s);
2117 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2118 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2120 mq = wrk->app_event_queue;
2121 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2125 return VPPCOM_EWOULDBLOCK;
2127 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2129 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2130 if (vcl_session_is_closing (s))
2131 return vcl_session_closing_error (s);
2132 svm_msg_q_lock (mq);
2133 if (svm_msg_q_is_empty (mq))
2134 svm_msg_q_wait (mq);
2136 svm_msg_q_sub_w_lock (mq, &msg);
2137 e = svm_msg_q_msg_data (mq, &msg);
2138 svm_msg_q_unlock (mq);
2140 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2141 vcl_handle_mq_event (wrk, e);
2142 svm_msg_q_free_msg (mq, &msg);
2146 et = SESSION_IO_EVT_TX;
2147 if (is_flush && !is_ct)
2148 et = SESSION_IO_EVT_TX_FLUSH;
2151 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2152 s->vpp_evt_q, buf, n, et,
2153 0 /* do_evt */ , SVM_Q_WAIT);
2155 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2156 0 /* do_evt */ , SVM_Q_WAIT);
2158 if (svm_fifo_set_event (s->tx_fifo))
2159 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2162 /* The underlying fifo segment can run out of memory */
2163 if (PREDICT_FALSE (n_write < 0))
2164 return VPPCOM_EAGAIN;
2166 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2167 s->vpp_handle, n_write);
2173 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2175 vcl_worker_t *wrk = vcl_worker_get_current ();
2178 s = vcl_session_get_w_handle (wrk, session_handle);
2179 if (PREDICT_FALSE (!s))
2180 return VPPCOM_EBADFD;
2182 return vppcom_session_write_inline (wrk, s, buf, n,
2183 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2187 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2189 vcl_worker_t *wrk = vcl_worker_get_current ();
2192 s = vcl_session_get_w_handle (wrk, session_handle);
2193 if (PREDICT_FALSE (!s))
2194 return VPPCOM_EBADFD;
2196 return vppcom_session_write_inline (wrk, s, buf, n,
2197 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2200 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2201 if (PREDICT_FALSE (!_s->rx_fifo)) \
2203 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2205 if (!vcl_session_is_ct (_s)) \
2207 svm_fifo_unset_event (_s->rx_fifo); \
2208 if (svm_fifo_is_empty (_s->rx_fifo)) \
2211 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2213 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2214 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2220 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2221 unsigned long n_bits, unsigned long *read_map,
2222 unsigned long *write_map,
2223 unsigned long *except_map, u32 * bits_set)
2225 session_disconnected_msg_t *disconnected_msg;
2226 session_connected_msg_t *connected_msg;
2230 switch (e->event_type)
2232 case SESSION_IO_EVT_RX:
2233 sid = e->session_index;
2234 s = vcl_session_get (wrk, sid);
2235 if (!s || !vcl_session_is_open (s))
2237 vcl_fifo_rx_evt_valid_or_break (s);
2238 if (sid < n_bits && read_map)
2240 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2244 case SESSION_IO_EVT_TX:
2245 sid = e->session_index;
2246 s = vcl_session_get (wrk, sid);
2247 if (!s || !vcl_session_is_open (s))
2249 if (sid < n_bits && write_map)
2251 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2255 case SESSION_CTRL_EVT_ACCEPTED:
2257 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2259 s = vcl_session_get (wrk, e->session_index);
2262 sid = s->session_index;
2263 if (sid < n_bits && read_map)
2265 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2269 case SESSION_CTRL_EVT_CONNECTED:
2272 connected_msg = (session_connected_msg_t *) e->data;
2273 sid = vcl_session_connected_handler (wrk, connected_msg);
2276 sid = e->session_index;
2277 if (sid == VCL_INVALID_SESSION_INDEX)
2279 if (sid < n_bits && write_map)
2281 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2285 case SESSION_CTRL_EVT_DISCONNECTED:
2286 disconnected_msg = (session_disconnected_msg_t *) e->data;
2287 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2290 sid = s->session_index;
2291 if (sid < n_bits && except_map)
2293 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2297 case SESSION_CTRL_EVT_RESET:
2298 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2299 if (sid < n_bits && except_map)
2301 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2305 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2306 vcl_session_unlisten_reply_handler (wrk, e->data);
2308 case SESSION_CTRL_EVT_MIGRATED:
2309 vcl_session_migrated_handler (wrk, e->data);
2311 case SESSION_CTRL_EVT_CLEANUP:
2312 vcl_session_cleanup_handler (wrk, e->data);
2314 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2315 vcl_session_worker_update_reply_handler (wrk, e->data);
2317 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2318 vcl_session_req_worker_update_handler (wrk, e->data);
2320 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2321 vcl_session_app_add_segment_handler (wrk, e->data);
2323 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2324 vcl_session_app_del_segment_handler (wrk, e->data);
2326 case SESSION_CTRL_EVT_APP_WRK_RPC:
2327 vcl_worker_rpc_handler (wrk, e->data);
2330 clib_warning ("unhandled: %u", e->event_type);
2336 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2337 unsigned long n_bits, unsigned long *read_map,
2338 unsigned long *write_map, unsigned long *except_map,
2339 double time_to_wait, u32 * bits_set)
2341 svm_msg_q_msg_t *msg;
2345 svm_msg_q_lock (mq);
2346 if (svm_msg_q_is_empty (mq))
2350 svm_msg_q_unlock (mq);
2356 svm_msg_q_unlock (mq);
2359 else if (time_to_wait < 0)
2361 svm_msg_q_wait (mq);
2365 if (svm_msg_q_timedwait (mq, time_to_wait))
2367 svm_msg_q_unlock (mq);
2372 vcl_mq_dequeue_batch (wrk, mq, ~0);
2373 svm_msg_q_unlock (mq);
2375 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2377 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2378 e = svm_msg_q_msg_data (mq, msg);
2379 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2380 except_map, bits_set);
2381 svm_msg_q_free_msg (mq, msg);
2383 vec_reset_length (wrk->mq_msg_vector);
2384 vcl_handle_pending_wrk_updates (wrk);
2389 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2390 vcl_si_set * read_map, vcl_si_set * write_map,
2391 vcl_si_set * except_map, double time_to_wait,
2394 double wait = 0, start = 0;
2398 wait = time_to_wait;
2399 start = clib_time_now (&wrk->clib_time);
2404 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2405 write_map, except_map, wait, bits_set);
2411 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2419 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2420 vcl_si_set * read_map, vcl_si_set * write_map,
2421 vcl_si_set * except_map, double time_to_wait,
2424 vcl_mq_evt_conn_t *mqc;
2425 int __clib_unused n_read;
2429 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2430 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2431 vec_len (wrk->mq_events), time_to_wait);
2432 for (i = 0; i < n_mq_evts; i++)
2434 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2435 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2436 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2437 except_map, 0, bits_set);
2440 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2444 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2445 vcl_si_set * except_map, double time_to_wait)
2447 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2448 vcl_worker_t *wrk = vcl_worker_get_current ();
2449 vcl_session_t *session = 0;
2452 if (n_bits && read_map)
2454 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2455 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2456 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2457 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2459 if (n_bits && write_map)
2461 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2462 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2463 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2464 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2466 if (n_bits && except_map)
2468 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2469 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2470 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2471 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2481 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2482 if (!(session = vcl_session_get (wrk, sid)))
2484 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2489 if (vcl_session_write_ready (session))
2491 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2495 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2502 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2503 if (!(session = vcl_session_get (wrk, sid)))
2505 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2510 if (vcl_session_read_ready (session))
2512 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2520 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2522 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2523 read_map, write_map, except_map, &bits_set);
2525 vec_reset_length (wrk->unhandled_evts_vector);
2527 if (vcm->cfg.use_mq_eventfd)
2528 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2529 time_to_wait, &bits_set);
2531 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2532 time_to_wait, &bits_set);
2538 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2540 vppcom_epoll_t *vep;
2541 u32 sh = vep_handle;
2544 if (VPPCOM_DEBUG <= 2)
2547 s = vcl_session_get_w_handle (wrk, vep_handle);
2548 if (PREDICT_FALSE (!s))
2550 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2553 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2555 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2559 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2562 " is_vep_session = %u\n"
2563 " next_sh = 0x%x (%u)\n"
2564 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2565 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2567 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2569 s = vcl_session_get_w_handle (wrk, sh);
2570 if (PREDICT_FALSE (!s))
2572 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2575 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2577 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2579 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2581 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2585 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2586 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2587 sh, s->vep.vep_sh, vep_handle);
2588 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2590 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2592 " next_sh = 0x%x (%u)\n"
2593 " prev_sh = 0x%x (%u)\n"
2594 " vep_sh = 0x%x (%u)\n"
2595 " ev.events = 0x%x\n"
2596 " ev.data.u64 = 0x%llx\n"
2599 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2600 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2601 vep->ev.data.u64, vep->et_mask);
2606 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2610 vppcom_epoll_create (void)
2612 vcl_worker_t *wrk = vcl_worker_get_current ();
2613 vcl_session_t *vep_session;
2615 vep_session = vcl_session_alloc (wrk);
2617 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2618 vep_session->vep.vep_sh = ~0;
2619 vep_session->vep.next_sh = ~0;
2620 vep_session->vep.prev_sh = ~0;
2621 vep_session->vpp_handle = ~0;
2623 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2624 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2626 return vcl_session_handle (vep_session);
2630 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2631 struct epoll_event *event)
2633 vcl_worker_t *wrk = vcl_worker_get_current ();
2634 vcl_session_t *vep_session;
2639 if (vep_handle == session_handle)
2641 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2642 return VPPCOM_EINVAL;
2645 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2646 if (PREDICT_FALSE (!vep_session))
2648 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2649 return VPPCOM_EBADFD;
2651 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2653 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2654 return VPPCOM_EINVAL;
2657 ASSERT (vep_session->vep.vep_sh == ~0);
2658 ASSERT (vep_session->vep.prev_sh == ~0);
2660 s = vcl_session_get_w_handle (wrk, session_handle);
2661 if (PREDICT_FALSE (!s))
2663 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2664 return VPPCOM_EBADFD;
2666 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2668 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2669 return VPPCOM_EINVAL;
2675 if (PREDICT_FALSE (!event))
2677 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2678 return VPPCOM_EINVAL;
2680 if (vep_session->vep.next_sh != ~0)
2682 vcl_session_t *next_session;
2683 next_session = vcl_session_get_w_handle (wrk,
2684 vep_session->vep.next_sh);
2685 if (PREDICT_FALSE (!next_session))
2687 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2688 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2689 return VPPCOM_EBADFD;
2691 ASSERT (next_session->vep.prev_sh == vep_handle);
2692 next_session->vep.prev_sh = session_handle;
2694 s->vep.next_sh = vep_session->vep.next_sh;
2695 s->vep.prev_sh = vep_handle;
2696 s->vep.vep_sh = vep_handle;
2697 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2699 s->flags &= ~VCL_SESSION_F_IS_VEP;
2700 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2701 vep_session->vep.next_sh = session_handle;
2703 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2704 if (txf && (event->events & EPOLLOUT))
2705 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2707 /* Generate EPOLLOUT if tx fifo not full */
2708 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2710 session_event_t e = { 0 };
2711 e.event_type = SESSION_IO_EVT_TX;
2712 e.session_index = s->session_index;
2713 vec_add1 (wrk->unhandled_evts_vector, e);
2715 /* Generate EPOLLIN if rx fifo has data */
2716 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2718 session_event_t e = { 0 };
2719 e.event_type = SESSION_IO_EVT_RX;
2720 e.session_index = s->session_index;
2721 vec_add1 (wrk->unhandled_evts_vector, e);
2723 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2724 vep_handle, session_handle, event->events, event->data.u64);
2725 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2729 if (PREDICT_FALSE (!event))
2731 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2735 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2737 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2741 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2743 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2744 session_handle, s->vep.vep_sh, vep_handle);
2749 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2750 if ((event->events & EPOLLOUT) &&
2751 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2753 session_event_t e = { 0 };
2754 e.event_type = SESSION_IO_EVT_TX;
2755 e.session_index = s->session_index;
2756 vec_add1 (wrk->unhandled_evts_vector, e);
2758 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2760 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2761 if (event->events & EPOLLOUT)
2762 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2764 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2765 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2766 vep_handle, session_handle, event->events, event->data.u64);
2770 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2772 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2776 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2778 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2779 session_handle, s->vep.vep_sh, vep_handle);
2784 if (s->vep.prev_sh == vep_handle)
2785 vep_session->vep.next_sh = s->vep.next_sh;
2788 vcl_session_t *prev_session;
2789 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2790 if (PREDICT_FALSE (!prev_session))
2792 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2793 s->vep.prev_sh, session_handle);
2794 return VPPCOM_EBADFD;
2796 ASSERT (prev_session->vep.next_sh == session_handle);
2797 prev_session->vep.next_sh = s->vep.next_sh;
2799 if (s->vep.next_sh != ~0)
2801 vcl_session_t *next_session;
2802 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2803 if (PREDICT_FALSE (!next_session))
2805 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2806 s->vep.next_sh, session_handle);
2807 return VPPCOM_EBADFD;
2809 ASSERT (next_session->vep.prev_sh == session_handle);
2810 next_session->vep.prev_sh = s->vep.prev_sh;
2813 memset (&s->vep, 0, sizeof (s->vep));
2814 s->vep.next_sh = ~0;
2815 s->vep.prev_sh = ~0;
2817 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2819 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2821 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2823 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2825 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2829 VDBG (0, "Invalid operation (%d)!", op);
2833 vep_verify_epoll_chain (wrk, vep_handle);
2840 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2841 struct epoll_event *events, u32 * num_ev)
2843 session_disconnected_msg_t *disconnected_msg;
2844 session_connected_msg_t *connected_msg;
2845 u32 sid = ~0, session_events;
2846 u64 session_evt_data = ~0;
2850 switch (e->event_type)
2852 case SESSION_IO_EVT_RX:
2853 sid = e->session_index;
2854 s = vcl_session_get (wrk, sid);
2855 if (vcl_session_is_closed (s))
2857 vcl_fifo_rx_evt_valid_or_break (s);
2858 session_events = s->vep.ev.events;
2859 if (!(EPOLLIN & s->vep.ev.events)
2860 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2863 events[*num_ev].events |= EPOLLIN;
2864 session_evt_data = s->vep.ev.data.u64;
2865 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2867 case SESSION_IO_EVT_TX:
2868 sid = e->session_index;
2869 s = vcl_session_get (wrk, sid);
2870 if (vcl_session_is_closed (s))
2872 session_events = s->vep.ev.events;
2873 if (!(EPOLLOUT & session_events))
2876 events[*num_ev].events |= EPOLLOUT;
2877 session_evt_data = s->vep.ev.data.u64;
2878 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2879 s->ct_tx_fifo : s->tx_fifo);
2881 case SESSION_CTRL_EVT_ACCEPTED:
2883 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2885 s = vcl_session_get (wrk, e->session_index);
2888 session_events = s->vep.ev.events;
2889 sid = s->session_index;
2890 if (!(EPOLLIN & session_events))
2893 events[*num_ev].events |= EPOLLIN;
2894 session_evt_data = s->vep.ev.data.u64;
2896 case SESSION_CTRL_EVT_CONNECTED:
2899 connected_msg = (session_connected_msg_t *) e->data;
2900 sid = vcl_session_connected_handler (wrk, connected_msg);
2903 sid = e->session_index;
2904 s = vcl_session_get (wrk, sid);
2905 if (vcl_session_is_closed (s))
2907 session_events = s->vep.ev.events;
2908 /* Generate EPOLLOUT because there's no connected event */
2909 if (!(EPOLLOUT & session_events))
2912 events[*num_ev].events |= EPOLLOUT;
2913 session_evt_data = s->vep.ev.data.u64;
2914 if (s->session_state == VCL_STATE_DETACHED)
2915 events[*num_ev].events |= EPOLLHUP;
2917 case SESSION_CTRL_EVT_DISCONNECTED:
2918 disconnected_msg = (session_disconnected_msg_t *) e->data;
2919 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2920 if (vcl_session_is_closed (s))
2922 sid = s->session_index;
2923 session_events = s->vep.ev.events;
2925 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2926 session_evt_data = s->vep.ev.data.u64;
2928 case SESSION_CTRL_EVT_RESET:
2929 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2930 s = vcl_session_get (wrk, sid);
2931 if (vcl_session_is_closed (s))
2933 session_events = s->vep.ev.events;
2935 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2936 session_evt_data = s->vep.ev.data.u64;
2938 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2939 vcl_session_unlisten_reply_handler (wrk, e->data);
2941 case SESSION_CTRL_EVT_MIGRATED:
2942 vcl_session_migrated_handler (wrk, e->data);
2944 case SESSION_CTRL_EVT_CLEANUP:
2945 vcl_session_cleanup_handler (wrk, e->data);
2947 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2948 vcl_session_req_worker_update_handler (wrk, e->data);
2950 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2951 vcl_session_worker_update_reply_handler (wrk, e->data);
2953 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2954 vcl_session_app_add_segment_handler (wrk, e->data);
2956 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2957 vcl_session_app_del_segment_handler (wrk, e->data);
2959 case SESSION_CTRL_EVT_APP_WRK_RPC:
2960 vcl_worker_rpc_handler (wrk, e->data);
2963 VDBG (0, "unhandled: %u", e->event_type);
2969 events[*num_ev].data.u64 = session_evt_data;
2970 if (EPOLLONESHOT & session_events)
2972 s = vcl_session_get (wrk, sid);
2973 s->vep.ev.events = 0;
2980 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2981 struct epoll_event *events, u32 maxevents,
2982 double wait_for_time, u32 * num_ev)
2984 svm_msg_q_msg_t *msg;
2988 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2989 goto handle_dequeued;
2991 svm_msg_q_lock (mq);
2992 if (svm_msg_q_is_empty (mq))
2996 svm_msg_q_unlock (mq);
2999 else if (wait_for_time < 0)
3001 svm_msg_q_wait (mq);
3005 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3007 svm_msg_q_unlock (mq);
3012 ASSERT (maxevents > *num_ev);
3013 vcl_mq_dequeue_batch (wrk, mq, ~0);
3014 svm_msg_q_unlock (mq);
3017 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3019 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3020 e = svm_msg_q_msg_data (mq, msg);
3021 if (*num_ev < maxevents)
3022 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3024 vcl_handle_mq_event (wrk, e);
3025 svm_msg_q_free_msg (mq, msg);
3027 vec_reset_length (wrk->mq_msg_vector);
3028 vcl_handle_pending_wrk_updates (wrk);
3033 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
3034 int maxevents, u32 n_evts, double wait_for_time)
3036 double wait = 0, start = 0, now;
3040 wait = wait_for_time;
3041 start = clib_time_now (&wrk->clib_time);
3046 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3053 now = clib_time_now (&wrk->clib_time);
3054 wait -= (now - start) * 1e3;
3063 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3064 int maxevents, u32 n_evts, double wait_for_time)
3066 vcl_mq_evt_conn_t *mqc;
3067 int __clib_unused n_read;
3071 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3073 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3074 vec_len (wrk->mq_events), wait_for_time);
3075 for (i = 0; i < n_mq_evts; i++)
3077 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3078 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3079 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3081 if (!n_evts && n_mq_evts > 0)
3084 return (int) n_evts;
3088 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3089 int maxevents, double wait_for_time)
3091 vcl_worker_t *wrk = vcl_worker_get_current ();
3092 vcl_session_t *vep_session;
3096 if (PREDICT_FALSE (maxevents <= 0))
3098 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3099 return VPPCOM_EINVAL;
3102 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3104 return VPPCOM_EBADFD;
3106 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3108 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3109 return VPPCOM_EINVAL;
3112 memset (events, 0, sizeof (*events) * maxevents);
3114 if (vec_len (wrk->unhandled_evts_vector))
3116 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3118 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3120 if (n_evts == maxevents)
3122 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3126 vec_reset_length (wrk->unhandled_evts_vector);
3129 if (vcm->cfg.use_mq_eventfd)
3130 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3133 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3138 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3139 void *buffer, uint32_t * buflen)
3141 vcl_worker_t *wrk = vcl_worker_get_current ();
3142 vcl_session_t *session;
3144 u32 *flags = buffer, tmp_flags = 0;
3145 vppcom_endpt_t *ep = buffer;
3147 session = vcl_session_get_w_handle (wrk, session_handle);
3149 return VPPCOM_EBADFD;
3153 case VPPCOM_ATTR_GET_NREAD:
3154 rv = vcl_session_read_ready (session);
3155 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3159 case VPPCOM_ATTR_GET_NWRITE:
3160 rv = vcl_session_write_ready (session);
3161 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3165 case VPPCOM_ATTR_GET_FLAGS:
3166 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3170 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3172 *buflen = sizeof (*flags);
3173 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3174 "is_nonblocking = %u", session_handle, *flags,
3175 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3181 case VPPCOM_ATTR_SET_FLAGS:
3182 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3184 if (*flags & O_NONBLOCK)
3185 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3187 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3189 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3190 " is_nonblocking = %u", session_handle, *flags,
3191 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3197 case VPPCOM_ATTR_GET_PEER_ADDR:
3198 if (PREDICT_TRUE (buffer && buflen &&
3199 (*buflen >= sizeof (*ep)) && ep->ip))
3201 ep->is_ip4 = session->transport.is_ip4;
3202 ep->port = session->transport.rmt_port;
3203 if (session->transport.is_ip4)
3204 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3205 sizeof (ip4_address_t));
3207 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3208 sizeof (ip6_address_t));
3209 *buflen = sizeof (*ep);
3210 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3211 "addr = %U, port %u", session_handle, ep->is_ip4,
3212 format_ip46_address, &session->transport.rmt_ip,
3213 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3214 clib_net_to_host_u16 (ep->port));
3220 case VPPCOM_ATTR_GET_LCL_ADDR:
3221 if (PREDICT_TRUE (buffer && buflen &&
3222 (*buflen >= sizeof (*ep)) && ep->ip))
3224 ep->is_ip4 = session->transport.is_ip4;
3225 ep->port = session->transport.lcl_port;
3226 if (session->transport.is_ip4)
3227 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3228 sizeof (ip4_address_t));
3230 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3231 sizeof (ip6_address_t));
3232 *buflen = sizeof (*ep);
3233 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3234 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3235 &session->transport.lcl_ip,
3236 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3237 clib_net_to_host_u16 (ep->port));
3243 case VPPCOM_ATTR_SET_LCL_ADDR:
3244 if (PREDICT_TRUE (buffer && buflen &&
3245 (*buflen >= sizeof (*ep)) && ep->ip))
3247 session->transport.is_ip4 = ep->is_ip4;
3248 session->transport.lcl_port = ep->port;
3249 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3250 *buflen = sizeof (*ep);
3251 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3252 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3253 &session->transport.lcl_ip,
3254 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3255 clib_net_to_host_u16 (ep->port));
3261 case VPPCOM_ATTR_GET_LIBC_EPFD:
3262 rv = session->libc_epfd;
3263 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3266 case VPPCOM_ATTR_SET_LIBC_EPFD:
3267 if (PREDICT_TRUE (buffer && buflen &&
3268 (*buflen == sizeof (session->libc_epfd))))
3270 session->libc_epfd = *(int *) buffer;
3271 *buflen = sizeof (session->libc_epfd);
3273 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3274 session->libc_epfd, *buflen);
3280 case VPPCOM_ATTR_GET_PROTOCOL:
3281 if (buffer && buflen && (*buflen >= sizeof (int)))
3283 *(int *) buffer = session->session_type;
3284 *buflen = sizeof (int);
3286 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3287 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3293 case VPPCOM_ATTR_GET_LISTEN:
3294 if (buffer && buflen && (*buflen >= sizeof (int)))
3296 *(int *) buffer = vcl_session_has_attr (session,
3297 VCL_SESS_ATTR_LISTEN);
3298 *buflen = sizeof (int);
3300 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3307 case VPPCOM_ATTR_GET_ERROR:
3308 if (buffer && buflen && (*buflen >= sizeof (int)))
3310 *(int *) buffer = 0;
3311 *buflen = sizeof (int);
3313 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3314 *(int *) buffer, *buflen);
3320 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3321 if (buffer && buflen && (*buflen >= sizeof (u32)))
3325 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3327 svm_fifo_size (session->tx_fifo) :
3328 vcm->cfg.tx_fifo_size);
3329 *buflen = sizeof (u32);
3331 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3332 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3339 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3340 if (buffer && buflen && (*buflen == sizeof (u32)))
3343 session->sndbuf_size = *(u32 *) buffer;
3344 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3345 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3352 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3353 if (buffer && buflen && (*buflen >= sizeof (u32)))
3357 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3359 svm_fifo_size (session->rx_fifo) :
3360 vcm->cfg.rx_fifo_size);
3361 *buflen = sizeof (u32);
3363 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3364 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3370 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3371 if (buffer && buflen && (*buflen == sizeof (u32)))
3374 session->rcvbuf_size = *(u32 *) buffer;
3375 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3376 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3383 case VPPCOM_ATTR_GET_REUSEADDR:
3384 if (buffer && buflen && (*buflen >= sizeof (int)))
3387 *(int *) buffer = vcl_session_has_attr (session,
3388 VCL_SESS_ATTR_REUSEADDR);
3389 *buflen = sizeof (int);
3391 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3392 *(int *) buffer, *buflen);
3398 case VPPCOM_ATTR_SET_REUSEADDR:
3399 if (buffer && buflen && (*buflen == sizeof (int)) &&
3400 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3403 if (*(int *) buffer)
3404 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3406 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3408 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3409 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3416 case VPPCOM_ATTR_GET_REUSEPORT:
3417 if (buffer && buflen && (*buflen >= sizeof (int)))
3420 *(int *) buffer = vcl_session_has_attr (session,
3421 VCL_SESS_ATTR_REUSEPORT);
3422 *buflen = sizeof (int);
3424 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3425 *(int *) buffer, *buflen);
3431 case VPPCOM_ATTR_SET_REUSEPORT:
3432 if (buffer && buflen && (*buflen == sizeof (int)) &&
3433 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3436 if (*(int *) buffer)
3437 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3439 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3441 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3442 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3449 case VPPCOM_ATTR_GET_BROADCAST:
3450 if (buffer && buflen && (*buflen >= sizeof (int)))
3453 *(int *) buffer = vcl_session_has_attr (session,
3454 VCL_SESS_ATTR_BROADCAST);
3455 *buflen = sizeof (int);
3457 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3458 *(int *) buffer, *buflen);
3464 case VPPCOM_ATTR_SET_BROADCAST:
3465 if (buffer && buflen && (*buflen == sizeof (int)))
3468 if (*(int *) buffer)
3469 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3471 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3473 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3474 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3481 case VPPCOM_ATTR_GET_V6ONLY:
3482 if (buffer && buflen && (*buflen >= sizeof (int)))
3485 *(int *) buffer = vcl_session_has_attr (session,
3486 VCL_SESS_ATTR_V6ONLY);
3487 *buflen = sizeof (int);
3489 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3490 *(int *) buffer, *buflen);
3496 case VPPCOM_ATTR_SET_V6ONLY:
3497 if (buffer && buflen && (*buflen == sizeof (int)))
3500 if (*(int *) buffer)
3501 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3503 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3505 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3506 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3513 case VPPCOM_ATTR_GET_KEEPALIVE:
3514 if (buffer && buflen && (*buflen >= sizeof (int)))
3517 *(int *) buffer = vcl_session_has_attr (session,
3518 VCL_SESS_ATTR_KEEPALIVE);
3519 *buflen = sizeof (int);
3521 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3522 *(int *) buffer, *buflen);
3528 case VPPCOM_ATTR_SET_KEEPALIVE:
3529 if (buffer && buflen && (*buflen == sizeof (int)))
3532 if (*(int *) buffer)
3533 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3535 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3537 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3538 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3545 case VPPCOM_ATTR_GET_TCP_NODELAY:
3546 if (buffer && buflen && (*buflen >= sizeof (int)))
3549 *(int *) buffer = vcl_session_has_attr (session,
3550 VCL_SESS_ATTR_TCP_NODELAY);
3551 *buflen = sizeof (int);
3553 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3554 *(int *) buffer, *buflen);
3560 case VPPCOM_ATTR_SET_TCP_NODELAY:
3561 if (buffer && buflen && (*buflen == sizeof (int)))
3564 if (*(int *) buffer)
3565 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3567 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3569 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3570 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3577 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3578 if (buffer && buflen && (*buflen >= sizeof (int)))
3581 *(int *) buffer = vcl_session_has_attr (session,
3582 VCL_SESS_ATTR_TCP_KEEPIDLE);
3583 *buflen = sizeof (int);
3585 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3586 *(int *) buffer, *buflen);
3592 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3593 if (buffer && buflen && (*buflen == sizeof (int)))
3596 if (*(int *) buffer)
3597 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3599 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3601 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3602 vcl_session_has_attr (session,
3603 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3609 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3610 if (buffer && buflen && (*buflen >= sizeof (int)))
3613 *(int *) buffer = vcl_session_has_attr (session,
3614 VCL_SESS_ATTR_TCP_KEEPINTVL);
3615 *buflen = sizeof (int);
3617 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3618 *(int *) buffer, *buflen);
3624 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3625 if (buffer && buflen && (*buflen == sizeof (int)))
3628 if (*(int *) buffer)
3629 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3631 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3633 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3634 vcl_session_has_attr (session,
3635 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3641 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3642 if (buffer && buflen && (*buflen >= sizeof (u32)))
3645 *(u32 *) buffer = session->user_mss;
3646 *buflen = sizeof (int);
3648 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3649 *(int *) buffer, *buflen);
3655 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3656 if (buffer && buflen && (*buflen == sizeof (u32)))
3659 session->user_mss = *(u32 *) buffer;
3661 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3662 session->user_mss, *buflen);
3668 case VPPCOM_ATTR_SET_SHUT:
3669 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3670 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3671 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3672 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3675 case VPPCOM_ATTR_GET_SHUT:
3676 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3678 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3681 *(int *) buffer = SHUT_RD;
3682 else if (tmp_flags == 2)
3683 *(int *) buffer = SHUT_WR;
3684 else if (tmp_flags == 3)
3685 *(int *) buffer = SHUT_RDWR;
3686 *buflen = sizeof (int);
3689 case VPPCOM_ATTR_SET_CONNECTED:
3690 session->flags |= VCL_SESSION_F_CONNECTED;
3702 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3703 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3705 vcl_worker_t *wrk = vcl_worker_get_current ();
3706 vcl_session_t *session;
3710 rv = vppcom_session_read (session_handle, buffer, buflen);
3711 else if (flags & MSG_PEEK)
3712 rv = vppcom_session_peek (session_handle, buffer, buflen);
3715 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3716 return VPPCOM_EAFNOSUPPORT;
3721 session = vcl_session_get_w_handle (wrk, session_handle);
3722 if (session->transport.is_ip4)
3723 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3724 sizeof (ip4_address_t));
3726 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3727 sizeof (ip6_address_t));
3728 ep->is_ip4 = session->transport.is_ip4;
3729 ep->port = session->transport.rmt_port;
3736 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3737 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3739 vcl_worker_t *wrk = vcl_worker_get_current ();
3742 s = vcl_session_get_w_handle (wrk, session_handle);
3744 return VPPCOM_EBADFD;
3747 return VPPCOM_EINVAL;
3751 if (!vcl_session_is_cl (s))
3752 return VPPCOM_EINVAL;
3754 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3755 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3757 u32 session_index = s->session_index;
3758 f64 timeout = vcm->cfg.session_timeout;
3761 vcl_send_session_connect (wrk, s);
3762 rv = vppcom_wait_for_session_state_change (session_index,
3767 s = vcl_session_get (wrk, session_index);
3770 s->transport.is_ip4 = ep->is_ip4;
3771 s->transport.rmt_port = ep->port;
3772 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3777 // TBD check the flags and do the right thing
3778 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3781 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3782 s->is_dgram ? 1 : 0));
3786 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3788 vcl_worker_t *wrk = vcl_worker_get_current ();
3789 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3790 u32 i, keep_trying = 1;
3791 svm_msg_q_msg_t msg;
3795 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3798 return VPPCOM_EFAULT;
3802 vcl_session_t *session;
3804 /* Dequeue all events and drop all unhandled io events */
3805 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3807 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3808 vcl_handle_mq_event (wrk, e);
3809 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3811 vec_reset_length (wrk->unhandled_evts_vector);
3813 for (i = 0; i < n_sids; i++)
3815 session = vcl_session_get (wrk, vp[i].sh);
3818 vp[i].revents = POLLHUP;
3825 if (POLLIN & vp[i].events)
3827 rv = vcl_session_read_ready (session);
3830 vp[i].revents |= POLLIN;
3837 case VPPCOM_ECONNRESET:
3838 vp[i].revents = POLLHUP;
3842 vp[i].revents = POLLERR;
3849 if (POLLOUT & vp[i].events)
3851 rv = vcl_session_write_ready (session);
3854 vp[i].revents |= POLLOUT;
3861 case VPPCOM_ECONNRESET:
3862 vp[i].revents = POLLHUP;
3866 vp[i].revents = POLLERR;
3873 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3875 vp[i].revents = POLLNVAL;
3879 if (wait_for_time != -1)
3880 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3882 while ((num_ev == 0) && keep_trying);
3888 vppcom_mq_epoll_fd (void)
3890 vcl_worker_t *wrk = vcl_worker_get_current ();
3891 return wrk->mqs_epfd;
3895 vppcom_session_index (vcl_session_handle_t session_handle)
3897 return session_handle & 0xFFFFFF;
3901 vppcom_session_worker (vcl_session_handle_t session_handle)
3903 return session_handle >> 24;
3907 vppcom_worker_register (void)
3909 if (!vcl_worker_alloc_and_init ())
3910 return VPPCOM_EEXIST;
3912 if (vcl_worker_register_with_vpp ())
3913 return VPPCOM_EEXIST;
3919 vppcom_worker_unregister (void)
3921 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3922 vcl_set_worker_index (~0);
3926 vppcom_worker_index_set (int index)
3928 vcl_set_worker_index (index);
3932 vppcom_worker_index (void)
3934 return vcl_get_worker_index ();
3938 vppcom_worker_mqs_epfd (void)
3940 vcl_worker_t *wrk = vcl_worker_get_current ();
3941 if (!vcm->cfg.use_mq_eventfd)
3943 return wrk->mqs_epfd;
3947 vppcom_session_is_connectable_listener (uint32_t session_handle)
3949 vcl_session_t *session;
3950 vcl_worker_t *wrk = vcl_worker_get_current ();
3951 session = vcl_session_get_w_handle (wrk, session_handle);
3953 return VPPCOM_EBADFD;
3954 return vcl_session_is_connectable_listener (wrk, session);
3958 vppcom_session_listener (uint32_t session_handle)
3960 vcl_worker_t *wrk = vcl_worker_get_current ();
3961 vcl_session_t *listen_session, *session;
3962 session = vcl_session_get_w_handle (wrk, session_handle);
3964 return VPPCOM_EBADFD;
3965 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3966 return VPPCOM_EBADFD;
3967 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3968 if (!listen_session)
3969 return VPPCOM_EBADFD;
3970 return vcl_session_handle (listen_session);
3974 vppcom_session_n_accepted (uint32_t session_handle)
3976 vcl_worker_t *wrk = vcl_worker_get_current ();
3977 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3979 return VPPCOM_EBADFD;
3980 return session->n_accepted_sessions;
3984 vppcom_proto_str (vppcom_proto_t proto)
3986 char const *proto_str;
3990 case VPPCOM_PROTO_TCP:
3993 case VPPCOM_PROTO_UDP:
3996 case VPPCOM_PROTO_TLS:
3999 case VPPCOM_PROTO_QUIC:
4003 proto_str = "UNKNOWN";
4010 vppcom_retval_str (int retval)
4021 st = "VPPCOM_EAGAIN";
4025 st = "VPPCOM_EFAULT";
4029 st = "VPPCOM_ENOMEM";
4033 st = "VPPCOM_EINVAL";
4037 st = "VPPCOM_EBADFD";
4040 case VPPCOM_EAFNOSUPPORT:
4041 st = "VPPCOM_EAFNOSUPPORT";
4044 case VPPCOM_ECONNABORTED:
4045 st = "VPPCOM_ECONNABORTED";
4048 case VPPCOM_ECONNRESET:
4049 st = "VPPCOM_ECONNRESET";
4052 case VPPCOM_ENOTCONN:
4053 st = "VPPCOM_ENOTCONN";
4056 case VPPCOM_ECONNREFUSED:
4057 st = "VPPCOM_ECONNREFUSED";
4060 case VPPCOM_ETIMEDOUT:
4061 st = "VPPCOM_ETIMEDOUT";
4065 st = "UNKNOWN_STATE";
4073 * fd.io coding-style-patch-verification: ON
4076 * eval: (c-set-style "gnu")