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);
1887 svm_fifo_unset_event (s->rx_fifo);
1888 return VPPCOM_EWOULDBLOCK;
1890 while (svm_fifo_is_empty_cons (rx_fifo))
1892 if (vcl_session_is_closing (s))
1893 return vcl_session_closing_error (s);
1895 svm_fifo_unset_event (s->rx_fifo);
1896 svm_msg_q_lock (mq);
1897 if (svm_msg_q_is_empty (mq))
1898 svm_msg_q_wait (mq);
1900 svm_msg_q_sub_w_lock (mq, &msg);
1901 e = svm_msg_q_msg_data (mq, &msg);
1902 svm_msg_q_unlock (mq);
1903 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1904 vcl_handle_mq_event (wrk, e);
1905 svm_msg_q_free_msg (mq, &msg);
1912 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1914 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1919 if (svm_fifo_is_empty_cons (rx_fifo))
1921 svm_fifo_unset_event (s->rx_fifo);
1922 if (!svm_fifo_is_empty_cons (rx_fifo)
1923 && svm_fifo_set_event (s->rx_fifo) && is_nonblocking)
1925 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1926 e->event_type = SESSION_IO_EVT_RX;
1927 e->session_index = s->session_index;
1930 else if (PREDICT_FALSE (rv < n))
1932 /* More data enqueued while reading. Try to drain it
1933 * or fill the buffer */
1939 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1941 svm_fifo_clear_deq_ntf (rx_fifo);
1942 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1943 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1946 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1947 s->vpp_handle, n_read, rx_fifo);
1953 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1955 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1959 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1961 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1965 vppcom_session_read_segments (uint32_t session_handle,
1966 vppcom_data_segment_t * ds, uint32_t n_segments,
1969 vcl_worker_t *wrk = vcl_worker_get_current ();
1970 int n_read = 0, is_nonblocking;
1971 vcl_session_t *s = 0;
1972 svm_fifo_t *rx_fifo;
1973 svm_msg_q_msg_t msg;
1978 s = vcl_session_get_w_handle (wrk, session_handle);
1979 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1980 return VPPCOM_EBADFD;
1982 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1983 return vcl_session_closed_error (s);
1985 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1986 is_ct = vcl_session_is_ct (s);
1987 mq = wrk->app_event_queue;
1988 rx_fifo = s->rx_fifo;
1989 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1992 svm_fifo_unset_event (s->rx_fifo);
1994 if (svm_fifo_is_empty_cons (rx_fifo))
1998 svm_fifo_unset_event (rx_fifo);
1999 return VPPCOM_EWOULDBLOCK;
2001 while (svm_fifo_is_empty_cons (rx_fifo))
2003 if (vcl_session_is_closing (s))
2004 return vcl_session_closing_error (s);
2006 svm_fifo_unset_event (rx_fifo);
2007 svm_msg_q_lock (mq);
2008 if (svm_msg_q_is_empty (mq))
2009 svm_msg_q_wait (mq);
2011 svm_msg_q_sub_w_lock (mq, &msg);
2012 e = svm_msg_q_msg_data (mq, &msg);
2013 svm_msg_q_unlock (mq);
2014 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
2015 vcl_handle_mq_event (wrk, e);
2016 svm_msg_q_free_msg (mq, &msg);
2020 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2021 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
2023 return VPPCOM_EAGAIN;
2025 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2027 svm_fifo_unset_event (s->rx_fifo);
2028 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2029 && svm_fifo_set_event (s->rx_fifo)
2030 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2033 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2034 e->event_type = SESSION_IO_EVT_RX;
2035 e->session_index = s->session_index;
2039 s->rx_bytes_pending += n_read;
2044 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2046 vcl_worker_t *wrk = vcl_worker_get_current ();
2049 s = vcl_session_get_w_handle (wrk, session_handle);
2050 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2053 svm_fifo_dequeue_drop (s->rx_fifo, n_bytes);
2055 ASSERT (s->rx_bytes_pending < n_bytes);
2056 s->rx_bytes_pending -= n_bytes;
2060 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2062 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2066 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2068 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2070 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2076 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2077 size_t n, u8 is_flush, u8 is_dgram)
2079 int n_write, is_nonblocking;
2080 session_evt_type_t et;
2081 svm_msg_q_msg_t msg;
2082 svm_fifo_t *tx_fifo;
2087 if (PREDICT_FALSE (!buf || n == 0))
2088 return VPPCOM_EINVAL;
2090 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2092 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2093 " session!", s->session_index, s->vpp_handle);
2094 return VPPCOM_EBADFD;
2097 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2099 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2100 s->session_index, s->vpp_handle, s->session_state,
2101 vppcom_session_state_str (s->session_state));
2102 return vcl_session_closed_error (s);;
2105 is_ct = vcl_session_is_ct (s);
2106 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2107 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2109 mq = wrk->app_event_queue;
2110 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2114 return VPPCOM_EWOULDBLOCK;
2116 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2118 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2119 if (vcl_session_is_closing (s))
2120 return vcl_session_closing_error (s);
2121 svm_msg_q_lock (mq);
2122 if (svm_msg_q_is_empty (mq))
2123 svm_msg_q_wait (mq);
2125 svm_msg_q_sub_w_lock (mq, &msg);
2126 e = svm_msg_q_msg_data (mq, &msg);
2127 svm_msg_q_unlock (mq);
2129 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2130 vcl_handle_mq_event (wrk, e);
2131 svm_msg_q_free_msg (mq, &msg);
2135 et = SESSION_IO_EVT_TX;
2136 if (is_flush && !is_ct)
2137 et = SESSION_IO_EVT_TX_FLUSH;
2140 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2141 s->vpp_evt_q, buf, n, et,
2142 0 /* do_evt */ , SVM_Q_WAIT);
2144 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2145 0 /* do_evt */ , SVM_Q_WAIT);
2147 if (svm_fifo_set_event (s->tx_fifo))
2148 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2151 /* The underlying fifo segment can run out of memory */
2152 if (PREDICT_FALSE (n_write < 0))
2153 return VPPCOM_EAGAIN;
2155 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2156 s->vpp_handle, n_write);
2162 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2164 vcl_worker_t *wrk = vcl_worker_get_current ();
2167 s = vcl_session_get_w_handle (wrk, session_handle);
2168 if (PREDICT_FALSE (!s))
2169 return VPPCOM_EBADFD;
2171 return vppcom_session_write_inline (wrk, s, buf, n,
2172 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2176 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2178 vcl_worker_t *wrk = vcl_worker_get_current ();
2181 s = vcl_session_get_w_handle (wrk, session_handle);
2182 if (PREDICT_FALSE (!s))
2183 return VPPCOM_EBADFD;
2185 return vppcom_session_write_inline (wrk, s, buf, n,
2186 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2189 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2190 if (PREDICT_FALSE (!_s->rx_fifo)) \
2192 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2194 if (!vcl_session_is_ct (_s)) \
2196 svm_fifo_unset_event (_s->rx_fifo); \
2197 if (svm_fifo_is_empty (_s->rx_fifo)) \
2200 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2202 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2203 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2209 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2210 unsigned long n_bits, unsigned long *read_map,
2211 unsigned long *write_map,
2212 unsigned long *except_map, u32 * bits_set)
2214 session_disconnected_msg_t *disconnected_msg;
2215 session_connected_msg_t *connected_msg;
2219 switch (e->event_type)
2221 case SESSION_IO_EVT_RX:
2222 sid = e->session_index;
2223 s = vcl_session_get (wrk, sid);
2224 if (!s || !vcl_session_is_open (s))
2226 vcl_fifo_rx_evt_valid_or_break (s);
2227 if (sid < n_bits && read_map)
2229 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2233 case SESSION_IO_EVT_TX:
2234 sid = e->session_index;
2235 s = vcl_session_get (wrk, sid);
2236 if (!s || !vcl_session_is_open (s))
2238 if (sid < n_bits && write_map)
2240 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2244 case SESSION_CTRL_EVT_ACCEPTED:
2246 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2248 s = vcl_session_get (wrk, e->session_index);
2251 sid = s->session_index;
2252 if (sid < n_bits && read_map)
2254 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2258 case SESSION_CTRL_EVT_CONNECTED:
2261 connected_msg = (session_connected_msg_t *) e->data;
2262 sid = vcl_session_connected_handler (wrk, connected_msg);
2265 sid = e->session_index;
2266 if (sid == VCL_INVALID_SESSION_INDEX)
2268 if (sid < n_bits && write_map)
2270 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2274 case SESSION_CTRL_EVT_DISCONNECTED:
2275 disconnected_msg = (session_disconnected_msg_t *) e->data;
2276 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2279 sid = s->session_index;
2280 if (sid < n_bits && except_map)
2282 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2286 case SESSION_CTRL_EVT_RESET:
2287 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2288 if (sid < n_bits && except_map)
2290 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2294 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2295 vcl_session_unlisten_reply_handler (wrk, e->data);
2297 case SESSION_CTRL_EVT_MIGRATED:
2298 vcl_session_migrated_handler (wrk, e->data);
2300 case SESSION_CTRL_EVT_CLEANUP:
2301 vcl_session_cleanup_handler (wrk, e->data);
2303 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2304 vcl_session_worker_update_reply_handler (wrk, e->data);
2306 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2307 vcl_session_req_worker_update_handler (wrk, e->data);
2309 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2310 vcl_session_app_add_segment_handler (wrk, e->data);
2312 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2313 vcl_session_app_del_segment_handler (wrk, e->data);
2315 case SESSION_CTRL_EVT_APP_WRK_RPC:
2316 vcl_worker_rpc_handler (wrk, e->data);
2319 clib_warning ("unhandled: %u", e->event_type);
2325 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2326 unsigned long n_bits, unsigned long *read_map,
2327 unsigned long *write_map, unsigned long *except_map,
2328 double time_to_wait, u32 * bits_set)
2330 svm_msg_q_msg_t *msg;
2334 svm_msg_q_lock (mq);
2335 if (svm_msg_q_is_empty (mq))
2339 svm_msg_q_unlock (mq);
2345 svm_msg_q_unlock (mq);
2348 else if (time_to_wait < 0)
2350 svm_msg_q_wait (mq);
2354 if (svm_msg_q_timedwait (mq, time_to_wait))
2356 svm_msg_q_unlock (mq);
2361 vcl_mq_dequeue_batch (wrk, mq, ~0);
2362 svm_msg_q_unlock (mq);
2364 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2366 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2367 e = svm_msg_q_msg_data (mq, msg);
2368 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2369 except_map, bits_set);
2370 svm_msg_q_free_msg (mq, msg);
2372 vec_reset_length (wrk->mq_msg_vector);
2373 vcl_handle_pending_wrk_updates (wrk);
2378 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2379 vcl_si_set * read_map, vcl_si_set * write_map,
2380 vcl_si_set * except_map, double time_to_wait,
2383 double wait = 0, start = 0;
2387 wait = time_to_wait;
2388 start = clib_time_now (&wrk->clib_time);
2393 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2394 write_map, except_map, wait, bits_set);
2400 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2408 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2409 vcl_si_set * read_map, vcl_si_set * write_map,
2410 vcl_si_set * except_map, double time_to_wait,
2413 vcl_mq_evt_conn_t *mqc;
2414 int __clib_unused n_read;
2418 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2419 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2420 vec_len (wrk->mq_events), time_to_wait);
2421 for (i = 0; i < n_mq_evts; i++)
2423 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2424 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2425 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2426 except_map, 0, bits_set);
2429 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2433 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2434 vcl_si_set * except_map, double time_to_wait)
2436 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2437 vcl_worker_t *wrk = vcl_worker_get_current ();
2438 vcl_session_t *session = 0;
2441 if (n_bits && read_map)
2443 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2444 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2445 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2446 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2448 if (n_bits && write_map)
2450 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2451 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2452 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2453 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2455 if (n_bits && except_map)
2457 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2458 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2459 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2460 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2470 clib_bitmap_foreach (sid, wrk->wr_bitmap, ({
2471 if (!(session = vcl_session_get (wrk, sid)))
2473 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2478 if (vcl_session_write_ready (session))
2480 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2484 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2491 clib_bitmap_foreach (sid, wrk->rd_bitmap, ({
2492 if (!(session = vcl_session_get (wrk, sid)))
2494 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2499 if (vcl_session_read_ready (session))
2501 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2509 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2511 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2512 read_map, write_map, except_map, &bits_set);
2514 vec_reset_length (wrk->unhandled_evts_vector);
2516 if (vcm->cfg.use_mq_eventfd)
2517 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2518 time_to_wait, &bits_set);
2520 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2521 time_to_wait, &bits_set);
2527 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2529 vppcom_epoll_t *vep;
2530 u32 sh = vep_handle;
2533 if (VPPCOM_DEBUG <= 2)
2536 s = vcl_session_get_w_handle (wrk, vep_handle);
2537 if (PREDICT_FALSE (!s))
2539 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2542 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2544 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2548 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2551 " is_vep_session = %u\n"
2552 " next_sh = 0x%x (%u)\n"
2553 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2554 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2556 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2558 s = vcl_session_get_w_handle (wrk, sh);
2559 if (PREDICT_FALSE (!s))
2561 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2564 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2566 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2568 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2570 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2574 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2575 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2576 sh, s->vep.vep_sh, vep_handle);
2577 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2579 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2581 " next_sh = 0x%x (%u)\n"
2582 " prev_sh = 0x%x (%u)\n"
2583 " vep_sh = 0x%x (%u)\n"
2584 " ev.events = 0x%x\n"
2585 " ev.data.u64 = 0x%llx\n"
2588 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2589 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2590 vep->ev.data.u64, vep->et_mask);
2595 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2599 vppcom_epoll_create (void)
2601 vcl_worker_t *wrk = vcl_worker_get_current ();
2602 vcl_session_t *vep_session;
2604 vep_session = vcl_session_alloc (wrk);
2606 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2607 vep_session->vep.vep_sh = ~0;
2608 vep_session->vep.next_sh = ~0;
2609 vep_session->vep.prev_sh = ~0;
2610 vep_session->vpp_handle = ~0;
2612 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2613 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2615 return vcl_session_handle (vep_session);
2619 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2620 struct epoll_event *event)
2622 vcl_worker_t *wrk = vcl_worker_get_current ();
2623 vcl_session_t *vep_session;
2628 if (vep_handle == session_handle)
2630 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2631 return VPPCOM_EINVAL;
2634 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2635 if (PREDICT_FALSE (!vep_session))
2637 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2638 return VPPCOM_EBADFD;
2640 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2642 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2643 return VPPCOM_EINVAL;
2646 ASSERT (vep_session->vep.vep_sh == ~0);
2647 ASSERT (vep_session->vep.prev_sh == ~0);
2649 s = vcl_session_get_w_handle (wrk, session_handle);
2650 if (PREDICT_FALSE (!s))
2652 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2653 return VPPCOM_EBADFD;
2655 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2657 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2658 return VPPCOM_EINVAL;
2664 if (PREDICT_FALSE (!event))
2666 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2667 return VPPCOM_EINVAL;
2669 if (vep_session->vep.next_sh != ~0)
2671 vcl_session_t *next_session;
2672 next_session = vcl_session_get_w_handle (wrk,
2673 vep_session->vep.next_sh);
2674 if (PREDICT_FALSE (!next_session))
2676 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2677 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2678 return VPPCOM_EBADFD;
2680 ASSERT (next_session->vep.prev_sh == vep_handle);
2681 next_session->vep.prev_sh = session_handle;
2683 s->vep.next_sh = vep_session->vep.next_sh;
2684 s->vep.prev_sh = vep_handle;
2685 s->vep.vep_sh = vep_handle;
2686 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2688 s->flags &= ~VCL_SESSION_F_IS_VEP;
2689 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2690 vep_session->vep.next_sh = session_handle;
2692 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2693 if (txf && (event->events & EPOLLOUT))
2694 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2696 /* Generate EPOLLOUT if tx fifo not full */
2697 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2699 session_event_t e = { 0 };
2700 e.event_type = SESSION_IO_EVT_TX;
2701 e.session_index = s->session_index;
2702 vec_add1 (wrk->unhandled_evts_vector, e);
2704 /* Generate EPOLLIN if rx fifo has data */
2705 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2707 session_event_t e = { 0 };
2708 e.event_type = SESSION_IO_EVT_RX;
2709 e.session_index = s->session_index;
2710 vec_add1 (wrk->unhandled_evts_vector, e);
2712 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2713 vep_handle, session_handle, event->events, event->data.u64);
2714 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2718 if (PREDICT_FALSE (!event))
2720 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2724 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2726 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2730 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2732 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2733 session_handle, s->vep.vep_sh, vep_handle);
2738 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2739 if ((event->events & EPOLLOUT) &&
2740 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2742 session_event_t e = { 0 };
2743 e.event_type = SESSION_IO_EVT_TX;
2744 e.session_index = s->session_index;
2745 vec_add1 (wrk->unhandled_evts_vector, e);
2747 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2749 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2750 if (event->events & EPOLLOUT)
2751 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2753 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2754 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2755 vep_handle, session_handle, event->events, event->data.u64);
2759 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2761 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2765 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2767 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2768 session_handle, s->vep.vep_sh, vep_handle);
2773 if (s->vep.prev_sh == vep_handle)
2774 vep_session->vep.next_sh = s->vep.next_sh;
2777 vcl_session_t *prev_session;
2778 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2779 if (PREDICT_FALSE (!prev_session))
2781 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2782 s->vep.prev_sh, session_handle);
2783 return VPPCOM_EBADFD;
2785 ASSERT (prev_session->vep.next_sh == session_handle);
2786 prev_session->vep.next_sh = s->vep.next_sh;
2788 if (s->vep.next_sh != ~0)
2790 vcl_session_t *next_session;
2791 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2792 if (PREDICT_FALSE (!next_session))
2794 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2795 s->vep.next_sh, session_handle);
2796 return VPPCOM_EBADFD;
2798 ASSERT (next_session->vep.prev_sh == session_handle);
2799 next_session->vep.prev_sh = s->vep.prev_sh;
2802 memset (&s->vep, 0, sizeof (s->vep));
2803 s->vep.next_sh = ~0;
2804 s->vep.prev_sh = ~0;
2806 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2808 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2810 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2812 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2814 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2818 VDBG (0, "Invalid operation (%d)!", op);
2822 vep_verify_epoll_chain (wrk, vep_handle);
2829 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2830 struct epoll_event *events, u32 * num_ev)
2832 session_disconnected_msg_t *disconnected_msg;
2833 session_connected_msg_t *connected_msg;
2834 u32 sid = ~0, session_events;
2835 u64 session_evt_data = ~0;
2839 switch (e->event_type)
2841 case SESSION_IO_EVT_RX:
2842 sid = e->session_index;
2843 s = vcl_session_get (wrk, sid);
2844 if (vcl_session_is_closed (s))
2846 vcl_fifo_rx_evt_valid_or_break (s);
2847 session_events = s->vep.ev.events;
2848 if (!(EPOLLIN & s->vep.ev.events)
2849 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2852 events[*num_ev].events |= EPOLLIN;
2853 session_evt_data = s->vep.ev.data.u64;
2854 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2856 case SESSION_IO_EVT_TX:
2857 sid = e->session_index;
2858 s = vcl_session_get (wrk, sid);
2859 if (vcl_session_is_closed (s))
2861 session_events = s->vep.ev.events;
2862 if (!(EPOLLOUT & session_events))
2865 events[*num_ev].events |= EPOLLOUT;
2866 session_evt_data = s->vep.ev.data.u64;
2867 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2868 s->ct_tx_fifo : s->tx_fifo);
2870 case SESSION_CTRL_EVT_ACCEPTED:
2872 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2874 s = vcl_session_get (wrk, e->session_index);
2877 session_events = s->vep.ev.events;
2878 sid = s->session_index;
2879 if (!(EPOLLIN & session_events))
2882 events[*num_ev].events |= EPOLLIN;
2883 session_evt_data = s->vep.ev.data.u64;
2885 case SESSION_CTRL_EVT_CONNECTED:
2888 connected_msg = (session_connected_msg_t *) e->data;
2889 sid = vcl_session_connected_handler (wrk, connected_msg);
2892 sid = e->session_index;
2893 s = vcl_session_get (wrk, sid);
2894 if (vcl_session_is_closed (s))
2896 session_events = s->vep.ev.events;
2897 /* Generate EPOLLOUT because there's no connected event */
2898 if (!(EPOLLOUT & session_events))
2901 events[*num_ev].events |= EPOLLOUT;
2902 session_evt_data = s->vep.ev.data.u64;
2903 if (s->session_state == VCL_STATE_DETACHED)
2904 events[*num_ev].events |= EPOLLHUP;
2906 case SESSION_CTRL_EVT_DISCONNECTED:
2907 disconnected_msg = (session_disconnected_msg_t *) e->data;
2908 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2909 if (vcl_session_is_closed (s))
2911 sid = s->session_index;
2912 session_events = s->vep.ev.events;
2914 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2915 session_evt_data = s->vep.ev.data.u64;
2917 case SESSION_CTRL_EVT_RESET:
2918 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2919 s = vcl_session_get (wrk, sid);
2920 if (vcl_session_is_closed (s))
2922 session_events = s->vep.ev.events;
2924 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2925 session_evt_data = s->vep.ev.data.u64;
2927 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2928 vcl_session_unlisten_reply_handler (wrk, e->data);
2930 case SESSION_CTRL_EVT_MIGRATED:
2931 vcl_session_migrated_handler (wrk, e->data);
2933 case SESSION_CTRL_EVT_CLEANUP:
2934 vcl_session_cleanup_handler (wrk, e->data);
2936 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2937 vcl_session_req_worker_update_handler (wrk, e->data);
2939 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2940 vcl_session_worker_update_reply_handler (wrk, e->data);
2942 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2943 vcl_session_app_add_segment_handler (wrk, e->data);
2945 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2946 vcl_session_app_del_segment_handler (wrk, e->data);
2948 case SESSION_CTRL_EVT_APP_WRK_RPC:
2949 vcl_worker_rpc_handler (wrk, e->data);
2952 VDBG (0, "unhandled: %u", e->event_type);
2958 events[*num_ev].data.u64 = session_evt_data;
2959 if (EPOLLONESHOT & session_events)
2961 s = vcl_session_get (wrk, sid);
2962 s->vep.ev.events = 0;
2969 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2970 struct epoll_event *events, u32 maxevents,
2971 double wait_for_time, u32 * num_ev)
2973 svm_msg_q_msg_t *msg;
2977 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2978 goto handle_dequeued;
2980 svm_msg_q_lock (mq);
2981 if (svm_msg_q_is_empty (mq))
2985 svm_msg_q_unlock (mq);
2988 else if (wait_for_time < 0)
2990 svm_msg_q_wait (mq);
2994 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2996 svm_msg_q_unlock (mq);
3001 ASSERT (maxevents > *num_ev);
3002 vcl_mq_dequeue_batch (wrk, mq, ~0);
3003 svm_msg_q_unlock (mq);
3006 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3008 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3009 e = svm_msg_q_msg_data (mq, msg);
3010 if (*num_ev < maxevents)
3011 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3013 vcl_handle_mq_event (wrk, e);
3014 svm_msg_q_free_msg (mq, msg);
3016 vec_reset_length (wrk->mq_msg_vector);
3017 vcl_handle_pending_wrk_updates (wrk);
3022 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
3023 int maxevents, u32 n_evts, double wait_for_time)
3025 double wait = 0, start = 0, now;
3029 wait = wait_for_time;
3030 start = clib_time_now (&wrk->clib_time);
3035 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3042 now = clib_time_now (&wrk->clib_time);
3043 wait -= (now - start) * 1e3;
3052 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3053 int maxevents, u32 n_evts, double wait_for_time)
3055 vcl_mq_evt_conn_t *mqc;
3056 int __clib_unused n_read;
3060 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3062 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3063 vec_len (wrk->mq_events), wait_for_time);
3064 for (i = 0; i < n_mq_evts; i++)
3066 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3067 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3068 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3070 if (!n_evts && n_mq_evts > 0)
3073 return (int) n_evts;
3077 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3078 int maxevents, double wait_for_time)
3080 vcl_worker_t *wrk = vcl_worker_get_current ();
3081 vcl_session_t *vep_session;
3085 if (PREDICT_FALSE (maxevents <= 0))
3087 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3088 return VPPCOM_EINVAL;
3091 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3093 return VPPCOM_EBADFD;
3095 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3097 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3098 return VPPCOM_EINVAL;
3101 memset (events, 0, sizeof (*events) * maxevents);
3103 if (vec_len (wrk->unhandled_evts_vector))
3105 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3107 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3109 if (n_evts == maxevents)
3111 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3115 vec_reset_length (wrk->unhandled_evts_vector);
3118 if (vcm->cfg.use_mq_eventfd)
3119 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3122 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3127 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3128 void *buffer, uint32_t * buflen)
3130 vcl_worker_t *wrk = vcl_worker_get_current ();
3131 vcl_session_t *session;
3133 u32 *flags = buffer, tmp_flags = 0;
3134 vppcom_endpt_t *ep = buffer;
3136 session = vcl_session_get_w_handle (wrk, session_handle);
3138 return VPPCOM_EBADFD;
3142 case VPPCOM_ATTR_GET_NREAD:
3143 rv = vcl_session_read_ready (session);
3144 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3148 case VPPCOM_ATTR_GET_NWRITE:
3149 rv = vcl_session_write_ready (session);
3150 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3154 case VPPCOM_ATTR_GET_FLAGS:
3155 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3159 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3161 *buflen = sizeof (*flags);
3162 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3163 "is_nonblocking = %u", session_handle, *flags,
3164 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3170 case VPPCOM_ATTR_SET_FLAGS:
3171 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3173 if (*flags & O_NONBLOCK)
3174 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3176 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3178 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3179 " is_nonblocking = %u", session_handle, *flags,
3180 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3186 case VPPCOM_ATTR_GET_PEER_ADDR:
3187 if (PREDICT_TRUE (buffer && buflen &&
3188 (*buflen >= sizeof (*ep)) && ep->ip))
3190 ep->is_ip4 = session->transport.is_ip4;
3191 ep->port = session->transport.rmt_port;
3192 if (session->transport.is_ip4)
3193 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3194 sizeof (ip4_address_t));
3196 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3197 sizeof (ip6_address_t));
3198 *buflen = sizeof (*ep);
3199 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3200 "addr = %U, port %u", session_handle, ep->is_ip4,
3201 format_ip46_address, &session->transport.rmt_ip,
3202 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3203 clib_net_to_host_u16 (ep->port));
3209 case VPPCOM_ATTR_GET_LCL_ADDR:
3210 if (PREDICT_TRUE (buffer && buflen &&
3211 (*buflen >= sizeof (*ep)) && ep->ip))
3213 ep->is_ip4 = session->transport.is_ip4;
3214 ep->port = session->transport.lcl_port;
3215 if (session->transport.is_ip4)
3216 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3217 sizeof (ip4_address_t));
3219 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3220 sizeof (ip6_address_t));
3221 *buflen = sizeof (*ep);
3222 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3223 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3224 &session->transport.lcl_ip,
3225 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3226 clib_net_to_host_u16 (ep->port));
3232 case VPPCOM_ATTR_SET_LCL_ADDR:
3233 if (PREDICT_TRUE (buffer && buflen &&
3234 (*buflen >= sizeof (*ep)) && ep->ip))
3236 session->transport.is_ip4 = ep->is_ip4;
3237 session->transport.lcl_port = ep->port;
3238 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3239 *buflen = sizeof (*ep);
3240 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3241 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3242 &session->transport.lcl_ip,
3243 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3244 clib_net_to_host_u16 (ep->port));
3250 case VPPCOM_ATTR_GET_LIBC_EPFD:
3251 rv = session->libc_epfd;
3252 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3255 case VPPCOM_ATTR_SET_LIBC_EPFD:
3256 if (PREDICT_TRUE (buffer && buflen &&
3257 (*buflen == sizeof (session->libc_epfd))))
3259 session->libc_epfd = *(int *) buffer;
3260 *buflen = sizeof (session->libc_epfd);
3262 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3263 session->libc_epfd, *buflen);
3269 case VPPCOM_ATTR_GET_PROTOCOL:
3270 if (buffer && buflen && (*buflen >= sizeof (int)))
3272 *(int *) buffer = session->session_type;
3273 *buflen = sizeof (int);
3275 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3276 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3282 case VPPCOM_ATTR_GET_LISTEN:
3283 if (buffer && buflen && (*buflen >= sizeof (int)))
3285 *(int *) buffer = vcl_session_has_attr (session,
3286 VCL_SESS_ATTR_LISTEN);
3287 *buflen = sizeof (int);
3289 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3296 case VPPCOM_ATTR_GET_ERROR:
3297 if (buffer && buflen && (*buflen >= sizeof (int)))
3299 *(int *) buffer = 0;
3300 *buflen = sizeof (int);
3302 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3303 *(int *) buffer, *buflen);
3309 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3310 if (buffer && buflen && (*buflen >= sizeof (u32)))
3314 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3316 svm_fifo_size (session->tx_fifo) :
3317 vcm->cfg.tx_fifo_size);
3318 *buflen = sizeof (u32);
3320 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3321 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3328 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3329 if (buffer && buflen && (*buflen == sizeof (u32)))
3332 session->sndbuf_size = *(u32 *) buffer;
3333 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3334 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3341 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3342 if (buffer && buflen && (*buflen >= sizeof (u32)))
3346 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3348 svm_fifo_size (session->rx_fifo) :
3349 vcm->cfg.rx_fifo_size);
3350 *buflen = sizeof (u32);
3352 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3353 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3359 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3360 if (buffer && buflen && (*buflen == sizeof (u32)))
3363 session->rcvbuf_size = *(u32 *) buffer;
3364 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3365 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3372 case VPPCOM_ATTR_GET_REUSEADDR:
3373 if (buffer && buflen && (*buflen >= sizeof (int)))
3376 *(int *) buffer = vcl_session_has_attr (session,
3377 VCL_SESS_ATTR_REUSEADDR);
3378 *buflen = sizeof (int);
3380 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3381 *(int *) buffer, *buflen);
3387 case VPPCOM_ATTR_SET_REUSEADDR:
3388 if (buffer && buflen && (*buflen == sizeof (int)) &&
3389 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3392 if (*(int *) buffer)
3393 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3395 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3397 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3398 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3405 case VPPCOM_ATTR_GET_REUSEPORT:
3406 if (buffer && buflen && (*buflen >= sizeof (int)))
3409 *(int *) buffer = vcl_session_has_attr (session,
3410 VCL_SESS_ATTR_REUSEPORT);
3411 *buflen = sizeof (int);
3413 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3414 *(int *) buffer, *buflen);
3420 case VPPCOM_ATTR_SET_REUSEPORT:
3421 if (buffer && buflen && (*buflen == sizeof (int)) &&
3422 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3425 if (*(int *) buffer)
3426 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3428 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3430 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3431 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3438 case VPPCOM_ATTR_GET_BROADCAST:
3439 if (buffer && buflen && (*buflen >= sizeof (int)))
3442 *(int *) buffer = vcl_session_has_attr (session,
3443 VCL_SESS_ATTR_BROADCAST);
3444 *buflen = sizeof (int);
3446 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3447 *(int *) buffer, *buflen);
3453 case VPPCOM_ATTR_SET_BROADCAST:
3454 if (buffer && buflen && (*buflen == sizeof (int)))
3457 if (*(int *) buffer)
3458 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3460 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3462 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3463 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3470 case VPPCOM_ATTR_GET_V6ONLY:
3471 if (buffer && buflen && (*buflen >= sizeof (int)))
3474 *(int *) buffer = vcl_session_has_attr (session,
3475 VCL_SESS_ATTR_V6ONLY);
3476 *buflen = sizeof (int);
3478 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3479 *(int *) buffer, *buflen);
3485 case VPPCOM_ATTR_SET_V6ONLY:
3486 if (buffer && buflen && (*buflen == sizeof (int)))
3489 if (*(int *) buffer)
3490 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3492 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3494 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3495 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3502 case VPPCOM_ATTR_GET_KEEPALIVE:
3503 if (buffer && buflen && (*buflen >= sizeof (int)))
3506 *(int *) buffer = vcl_session_has_attr (session,
3507 VCL_SESS_ATTR_KEEPALIVE);
3508 *buflen = sizeof (int);
3510 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3511 *(int *) buffer, *buflen);
3517 case VPPCOM_ATTR_SET_KEEPALIVE:
3518 if (buffer && buflen && (*buflen == sizeof (int)))
3521 if (*(int *) buffer)
3522 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3524 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3526 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3527 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3534 case VPPCOM_ATTR_GET_TCP_NODELAY:
3535 if (buffer && buflen && (*buflen >= sizeof (int)))
3538 *(int *) buffer = vcl_session_has_attr (session,
3539 VCL_SESS_ATTR_TCP_NODELAY);
3540 *buflen = sizeof (int);
3542 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3543 *(int *) buffer, *buflen);
3549 case VPPCOM_ATTR_SET_TCP_NODELAY:
3550 if (buffer && buflen && (*buflen == sizeof (int)))
3553 if (*(int *) buffer)
3554 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3556 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3558 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3559 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3566 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3567 if (buffer && buflen && (*buflen >= sizeof (int)))
3570 *(int *) buffer = vcl_session_has_attr (session,
3571 VCL_SESS_ATTR_TCP_KEEPIDLE);
3572 *buflen = sizeof (int);
3574 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3575 *(int *) buffer, *buflen);
3581 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3582 if (buffer && buflen && (*buflen == sizeof (int)))
3585 if (*(int *) buffer)
3586 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3588 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3590 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3591 vcl_session_has_attr (session,
3592 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3598 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3599 if (buffer && buflen && (*buflen >= sizeof (int)))
3602 *(int *) buffer = vcl_session_has_attr (session,
3603 VCL_SESS_ATTR_TCP_KEEPINTVL);
3604 *buflen = sizeof (int);
3606 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3607 *(int *) buffer, *buflen);
3613 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3614 if (buffer && buflen && (*buflen == sizeof (int)))
3617 if (*(int *) buffer)
3618 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3620 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3622 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3623 vcl_session_has_attr (session,
3624 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3630 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3631 if (buffer && buflen && (*buflen >= sizeof (u32)))
3634 *(u32 *) buffer = session->user_mss;
3635 *buflen = sizeof (int);
3637 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3638 *(int *) buffer, *buflen);
3644 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3645 if (buffer && buflen && (*buflen == sizeof (u32)))
3648 session->user_mss = *(u32 *) buffer;
3650 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3651 session->user_mss, *buflen);
3657 case VPPCOM_ATTR_SET_SHUT:
3658 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3659 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3660 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3661 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3664 case VPPCOM_ATTR_GET_SHUT:
3665 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3667 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3670 *(int *) buffer = SHUT_RD;
3671 else if (tmp_flags == 2)
3672 *(int *) buffer = SHUT_WR;
3673 else if (tmp_flags == 3)
3674 *(int *) buffer = SHUT_RDWR;
3675 *buflen = sizeof (int);
3678 case VPPCOM_ATTR_SET_CONNECTED:
3679 session->flags |= VCL_SESSION_F_CONNECTED;
3691 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3692 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3694 vcl_worker_t *wrk = vcl_worker_get_current ();
3695 vcl_session_t *session;
3699 rv = vppcom_session_read (session_handle, buffer, buflen);
3700 else if (flags & MSG_PEEK)
3701 rv = vppcom_session_peek (session_handle, buffer, buflen);
3704 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3705 return VPPCOM_EAFNOSUPPORT;
3710 session = vcl_session_get_w_handle (wrk, session_handle);
3711 if (session->transport.is_ip4)
3712 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3713 sizeof (ip4_address_t));
3715 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3716 sizeof (ip6_address_t));
3717 ep->is_ip4 = session->transport.is_ip4;
3718 ep->port = session->transport.rmt_port;
3725 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3726 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3728 vcl_worker_t *wrk = vcl_worker_get_current ();
3731 s = vcl_session_get_w_handle (wrk, session_handle);
3733 return VPPCOM_EBADFD;
3736 return VPPCOM_EINVAL;
3740 if (!vcl_session_is_cl (s))
3741 return VPPCOM_EINVAL;
3743 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3744 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3746 u32 session_index = s->session_index;
3747 f64 timeout = vcm->cfg.session_timeout;
3750 vcl_send_session_connect (wrk, s);
3751 rv = vppcom_wait_for_session_state_change (session_index,
3756 s = vcl_session_get (wrk, session_index);
3759 s->transport.is_ip4 = ep->is_ip4;
3760 s->transport.rmt_port = ep->port;
3761 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3766 // TBD check the flags and do the right thing
3767 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3770 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3771 s->is_dgram ? 1 : 0));
3775 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3777 vcl_worker_t *wrk = vcl_worker_get_current ();
3778 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3779 u32 i, keep_trying = 1;
3780 svm_msg_q_msg_t msg;
3784 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3787 return VPPCOM_EFAULT;
3791 vcl_session_t *session;
3793 /* Dequeue all events and drop all unhandled io events */
3794 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3796 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3797 vcl_handle_mq_event (wrk, e);
3798 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3800 vec_reset_length (wrk->unhandled_evts_vector);
3802 for (i = 0; i < n_sids; i++)
3804 session = vcl_session_get (wrk, vp[i].sh);
3807 vp[i].revents = POLLHUP;
3814 if (POLLIN & vp[i].events)
3816 rv = vcl_session_read_ready (session);
3819 vp[i].revents |= POLLIN;
3826 case VPPCOM_ECONNRESET:
3827 vp[i].revents = POLLHUP;
3831 vp[i].revents = POLLERR;
3838 if (POLLOUT & vp[i].events)
3840 rv = vcl_session_write_ready (session);
3843 vp[i].revents |= POLLOUT;
3850 case VPPCOM_ECONNRESET:
3851 vp[i].revents = POLLHUP;
3855 vp[i].revents = POLLERR;
3862 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3864 vp[i].revents = POLLNVAL;
3868 if (wait_for_time != -1)
3869 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3871 while ((num_ev == 0) && keep_trying);
3877 vppcom_mq_epoll_fd (void)
3879 vcl_worker_t *wrk = vcl_worker_get_current ();
3880 return wrk->mqs_epfd;
3884 vppcom_session_index (vcl_session_handle_t session_handle)
3886 return session_handle & 0xFFFFFF;
3890 vppcom_session_worker (vcl_session_handle_t session_handle)
3892 return session_handle >> 24;
3896 vppcom_worker_register (void)
3898 if (!vcl_worker_alloc_and_init ())
3899 return VPPCOM_EEXIST;
3901 if (vcl_worker_register_with_vpp ())
3902 return VPPCOM_EEXIST;
3908 vppcom_worker_unregister (void)
3910 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3911 vcl_set_worker_index (~0);
3915 vppcom_worker_index_set (int index)
3917 vcl_set_worker_index (index);
3921 vppcom_worker_index (void)
3923 return vcl_get_worker_index ();
3927 vppcom_worker_mqs_epfd (void)
3929 vcl_worker_t *wrk = vcl_worker_get_current ();
3930 if (!vcm->cfg.use_mq_eventfd)
3932 return wrk->mqs_epfd;
3936 vppcom_session_is_connectable_listener (uint32_t session_handle)
3938 vcl_session_t *session;
3939 vcl_worker_t *wrk = vcl_worker_get_current ();
3940 session = vcl_session_get_w_handle (wrk, session_handle);
3942 return VPPCOM_EBADFD;
3943 return vcl_session_is_connectable_listener (wrk, session);
3947 vppcom_session_listener (uint32_t session_handle)
3949 vcl_worker_t *wrk = vcl_worker_get_current ();
3950 vcl_session_t *listen_session, *session;
3951 session = vcl_session_get_w_handle (wrk, session_handle);
3953 return VPPCOM_EBADFD;
3954 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3955 return VPPCOM_EBADFD;
3956 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3957 if (!listen_session)
3958 return VPPCOM_EBADFD;
3959 return vcl_session_handle (listen_session);
3963 vppcom_session_n_accepted (uint32_t session_handle)
3965 vcl_worker_t *wrk = vcl_worker_get_current ();
3966 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3968 return VPPCOM_EBADFD;
3969 return session->n_accepted_sessions;
3973 vppcom_proto_str (vppcom_proto_t proto)
3975 char const *proto_str;
3979 case VPPCOM_PROTO_TCP:
3982 case VPPCOM_PROTO_UDP:
3985 case VPPCOM_PROTO_TLS:
3988 case VPPCOM_PROTO_QUIC:
3992 proto_str = "UNKNOWN";
3999 vppcom_retval_str (int retval)
4010 st = "VPPCOM_EAGAIN";
4014 st = "VPPCOM_EFAULT";
4018 st = "VPPCOM_ENOMEM";
4022 st = "VPPCOM_EINVAL";
4026 st = "VPPCOM_EBADFD";
4029 case VPPCOM_EAFNOSUPPORT:
4030 st = "VPPCOM_EAFNOSUPPORT";
4033 case VPPCOM_ECONNABORTED:
4034 st = "VPPCOM_ECONNABORTED";
4037 case VPPCOM_ECONNRESET:
4038 st = "VPPCOM_ECONNRESET";
4041 case VPPCOM_ENOTCONN:
4042 st = "VPPCOM_ENOTCONN";
4045 case VPPCOM_ECONNREFUSED:
4046 st = "VPPCOM_ECONNREFUSED";
4049 case VPPCOM_ETIMEDOUT:
4050 st = "VPPCOM_ETIMEDOUT";
4054 st = "UNKNOWN_STATE";
4062 * fd.io coding-style-patch-verification: ON
4065 * eval: (c-set-style "gnu")