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_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
32 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
33 for (i = 0; i < n_msgs; i++)
35 vec_add2 (wrk->mq_msg_vector, msg, 1);
36 svm_msg_q_sub_w_lock (mq, msg);
42 vppcom_session_state_str (vcl_session_state_t state)
48 case VCL_STATE_CLOSED:
51 case VCL_STATE_LISTEN:
57 case VCL_STATE_VPP_CLOSING:
58 st = "STATE_VPP_CLOSING";
60 case VCL_STATE_DISCONNECT:
61 st = "STATE_DISCONNECT";
63 case VCL_STATE_DETACHED:
64 st = "STATE_DETACHED";
66 case VCL_STATE_UPDATED:
69 case VCL_STATE_LISTEN_NO_MQ:
70 st = "STATE_LISTEN_NO_MQ";
81 format_ip4_address (u8 * s, va_list * args)
83 u8 *a = va_arg (*args, u8 *);
84 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
88 format_ip6_address (u8 * s, va_list * args)
90 ip6_address_t *a = va_arg (*args, ip6_address_t *);
91 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
93 i_max_n_zero = ARRAY_LEN (a->as_u16);
95 i_first_zero = i_max_n_zero;
97 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
99 u32 is_zero = a->as_u16[i] == 0;
100 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
106 if ((!is_zero && n_zeros > max_n_zeros)
107 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
109 i_max_n_zero = i_first_zero;
110 max_n_zeros = n_zeros;
111 i_first_zero = ARRAY_LEN (a->as_u16);
116 last_double_colon = 0;
117 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
119 if (i == i_max_n_zero && max_n_zeros > 1)
121 s = format (s, "::");
122 i += max_n_zeros - 1;
123 last_double_colon = 1;
127 s = format (s, "%s%x",
128 (last_double_colon || i == 0) ? "" : ":",
129 clib_net_to_host_u16 (a->as_u16[i]));
130 last_double_colon = 0;
137 /* Format an IP46 address. */
139 format_ip46_address (u8 * s, va_list * args)
141 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
142 ip46_type_t type = va_arg (*args, ip46_type_t);
148 is_ip4 = ip46_address_is_ip4 (ip46);
159 format (s, "%U", format_ip4_address, &ip46->ip4) :
160 format (s, "%U", format_ip6_address, &ip46->ip6);
164 * VPPCOM Utility Functions
168 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
170 app_session_evt_t _app_evt, *app_evt = &_app_evt;
171 session_listen_msg_t *mp;
174 mq = vcl_worker_ctrl_mq (wrk);
175 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
176 mp = (session_listen_msg_t *) app_evt->evt->data;
177 memset (mp, 0, sizeof (*mp));
178 mp->client_index = wrk->api_client_handle;
179 mp->context = s->session_index;
180 mp->wrk_index = wrk->vpp_wrk_index;
181 mp->is_ip4 = s->transport.is_ip4;
182 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
183 mp->port = s->transport.lcl_port;
184 mp->proto = s->session_type;
185 if (s->flags & VCL_SESSION_F_CONNECTED)
186 mp->flags = TRANSPORT_CFG_F_CONNECTED;
187 app_send_ctrl_evt_to_vpp (mq, app_evt);
191 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
193 app_session_evt_t _app_evt, *app_evt = &_app_evt;
194 session_connect_msg_t *mp;
197 mq = vcl_worker_ctrl_mq (wrk);
198 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
199 mp = (session_connect_msg_t *) app_evt->evt->data;
200 memset (mp, 0, sizeof (*mp));
201 mp->client_index = wrk->api_client_handle;
202 mp->context = s->session_index;
203 mp->wrk_index = wrk->vpp_wrk_index;
204 mp->is_ip4 = s->transport.is_ip4;
205 mp->parent_handle = s->parent_handle;
206 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
207 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
208 mp->port = s->transport.rmt_port;
209 mp->lcl_port = s->transport.lcl_port;
210 mp->proto = s->session_type;
211 if (s->flags & VCL_SESSION_F_CONNECTED)
212 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
213 app_send_ctrl_evt_to_vpp (mq, app_evt);
217 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
219 app_session_evt_t _app_evt, *app_evt = &_app_evt;
220 session_unlisten_msg_t *mp;
223 mq = vcl_worker_ctrl_mq (wrk);
224 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
225 mp = (session_unlisten_msg_t *) app_evt->evt->data;
226 memset (mp, 0, sizeof (*mp));
227 mp->client_index = wrk->api_client_handle;
228 mp->wrk_index = wrk->vpp_wrk_index;
229 mp->handle = s->vpp_handle;
230 mp->context = wrk->wrk_index;
231 app_send_ctrl_evt_to_vpp (mq, app_evt);
235 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
237 app_session_evt_t _app_evt, *app_evt = &_app_evt;
238 session_disconnect_msg_t *mp;
241 /* Send to thread that owns the session */
243 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
244 mp = (session_disconnect_msg_t *) app_evt->evt->data;
245 memset (mp, 0, sizeof (*mp));
246 mp->client_index = wrk->api_client_handle;
247 mp->handle = s->vpp_handle;
248 app_send_ctrl_evt_to_vpp (mq, app_evt);
252 vcl_send_app_detach (vcl_worker_t * wrk)
254 app_session_evt_t _app_evt, *app_evt = &_app_evt;
255 session_app_detach_msg_t *mp;
258 mq = vcl_worker_ctrl_mq (wrk);
259 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
260 mp = (session_app_detach_msg_t *) app_evt->evt->data;
261 memset (mp, 0, sizeof (*mp));
262 mp->client_index = wrk->api_client_handle;
263 app_send_ctrl_evt_to_vpp (mq, app_evt);
267 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
268 session_handle_t handle, int retval)
270 app_session_evt_t _app_evt, *app_evt = &_app_evt;
271 session_accepted_reply_msg_t *rmp;
272 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
273 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
274 rmp->handle = handle;
275 rmp->context = context;
276 rmp->retval = retval;
277 app_send_ctrl_evt_to_vpp (mq, app_evt);
281 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
284 app_session_evt_t _app_evt, *app_evt = &_app_evt;
285 session_disconnected_reply_msg_t *rmp;
286 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
287 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
288 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
289 rmp->handle = s->vpp_handle;
290 rmp->context = wrk->api_client_handle;
291 rmp->retval = retval;
292 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
296 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
299 app_session_evt_t _app_evt, *app_evt = &_app_evt;
300 session_reset_reply_msg_t *rmp;
301 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
302 SESSION_CTRL_EVT_RESET_REPLY);
303 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
304 rmp->handle = s->vpp_handle;
305 rmp->context = wrk->api_client_handle;
306 rmp->retval = retval;
307 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
311 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
314 app_session_evt_t _app_evt, *app_evt = &_app_evt;
315 session_worker_update_msg_t *mp;
317 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
318 SESSION_CTRL_EVT_WORKER_UPDATE);
319 mp = (session_worker_update_msg_t *) app_evt->evt->data;
320 mp->client_index = wrk->api_client_handle;
321 mp->handle = s->vpp_handle;
322 mp->req_wrk_index = wrk->vpp_wrk_index;
323 mp->wrk_index = wrk_index;
324 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
328 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
330 app_session_evt_t _app_evt, *app_evt = &_app_evt;
331 session_app_wrk_rpc_msg_t *mp;
332 vcl_worker_t *dst_wrk, *wrk;
336 if (data_len > sizeof (mp->data))
339 clib_spinlock_lock (&vcm->workers_lock);
341 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
345 wrk = vcl_worker_get_current ();
346 mq = vcl_worker_ctrl_mq (wrk);
347 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
348 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
349 mp->client_index = wrk->api_client_handle;
350 mp->wrk_index = dst_wrk->vpp_wrk_index;
351 clib_memcpy (mp->data, data, data_len);
352 app_send_ctrl_evt_to_vpp (mq, app_evt);
356 clib_spinlock_unlock (&vcm->workers_lock);
361 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
364 vcl_session_t *session, *listen_session;
367 session = vcl_session_alloc (wrk);
369 listen_session = vcl_session_get (wrk, ls_index);
370 if (listen_session->vpp_handle != mp->listener_handle)
372 VDBG (0, "ERROR: listener handle %lu does not match session %u",
373 mp->listener_handle, ls_index);
378 uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
380 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
381 mp->server_tx_fifo, 0, session))
383 VDBG (0, "failed to attach fifos for %u", session->session_index);
387 session->vpp_handle = mp->handle;
388 session->session_state = VCL_STATE_READY;
389 session->transport.rmt_port = mp->rmt.port;
390 session->transport.is_ip4 = mp->rmt.is_ip4;
391 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
392 sizeof (ip46_address_t));
394 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
395 session->transport.lcl_port = listen_session->transport.lcl_port;
396 session->transport.lcl_ip = listen_session->transport.lcl_ip;
397 session->session_type = listen_session->session_type;
398 session->is_dgram = vcl_proto_is_dgram (session->session_type);
399 session->listener_index = listen_session->session_index;
400 listen_session->n_accepted_sessions++;
402 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
403 " port %d queue %p!", session->session_index, mp->handle,
404 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
405 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
406 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
407 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
409 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
410 session->vpp_handle, 0);
412 return session->session_index;
415 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
416 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
417 VNET_API_ERROR_INVALID_ARGUMENT);
418 vcl_session_free (wrk, session);
419 return VCL_INVALID_SESSION_INDEX;
423 vcl_session_connected_handler (vcl_worker_t * wrk,
424 session_connected_msg_t * mp)
426 vcl_session_t *session = 0;
429 session_index = mp->context;
430 session = vcl_session_get (wrk, session_index);
433 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
434 mp->handle, session_index);
435 return VCL_INVALID_SESSION_INDEX;
439 VDBG (0, "ERROR: session index %u: connect failed! %U",
440 session_index, format_session_error, mp->retval);
441 session->session_state = VCL_STATE_DETACHED;
442 session->vpp_handle = mp->handle;
443 return session_index;
446 session->vpp_handle = mp->handle;
447 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
450 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
451 mp->server_tx_fifo, 0, session))
453 VDBG (0, "failed to attach fifos for %u", session->session_index);
454 session->session_state = VCL_STATE_DETACHED;
455 vcl_send_session_disconnect (wrk, session);
456 return session_index;
461 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
462 mp->ct_tx_fifo, 1, session))
464 VDBG (0, "failed to attach ct fifos for %u", session->session_index);
465 session->session_state = VCL_STATE_DETACHED;
466 vcl_send_session_disconnect (wrk, session);
467 return session_index;
471 session->transport.is_ip4 = mp->lcl.is_ip4;
472 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
473 sizeof (session->transport.lcl_ip));
474 session->transport.lcl_port = mp->lcl.port;
476 /* Application closed session before connect reply */
477 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
478 && session->session_state == VCL_STATE_CLOSED)
479 vcl_send_session_disconnect (wrk, session);
481 session->session_state = VCL_STATE_READY;
483 /* Add it to lookup table */
484 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
486 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
487 " refcnt %d", session_index, mp->handle, session->rx_fifo,
488 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
490 return session_index;
494 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
496 vcl_session_msg_t *accepted_msg;
499 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
501 accepted_msg = &session->accept_evts_fifo[i];
502 if (accepted_msg->accepted_msg.handle == handle)
504 accepted_msg->flags |= flags;
512 vcl_session_reset_handler (vcl_worker_t * wrk,
513 session_reset_msg_t * reset_msg)
515 vcl_session_t *session;
518 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
519 session = vcl_session_get (wrk, sid);
522 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
523 return VCL_INVALID_SESSION_INDEX;
526 /* Caught a reset before actually accepting the session */
527 if (session->session_state == VCL_STATE_LISTEN)
530 if (!vcl_flag_accepted_session (session, reset_msg->handle,
531 VCL_ACCEPTED_F_RESET))
532 VDBG (0, "session was not accepted!");
533 return VCL_INVALID_SESSION_INDEX;
536 if (session->session_state != VCL_STATE_CLOSED)
537 session->session_state = VCL_STATE_DISCONNECT;
538 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
543 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
545 vcl_session_t *session;
546 u32 sid = mp->context;
548 session = vcl_session_get (wrk, sid);
551 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
552 format_session_error, mp->retval);
555 session->session_state = VCL_STATE_DETACHED;
556 session->vpp_handle = mp->handle;
561 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
563 return VCL_INVALID_SESSION_INDEX;
567 session->vpp_handle = mp->handle;
568 session->transport.is_ip4 = mp->lcl_is_ip4;
569 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
570 sizeof (ip46_address_t));
571 session->transport.lcl_port = mp->lcl_port;
572 vcl_session_table_add_listener (wrk, mp->handle, sid);
573 session->session_state = VCL_STATE_LISTEN;
574 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
576 if (vcl_session_is_cl (session))
578 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
579 mp->tx_fifo, 0, session))
581 VDBG (0, "failed to attach fifos for %u", session->session_index);
582 session->session_state = VCL_STATE_DETACHED;
583 return VCL_INVALID_SESSION_INDEX;
587 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
592 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
594 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
597 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
600 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
603 if (s->session_state != VCL_STATE_DISCONNECT)
605 /* Connected udp listener */
606 if (s->session_type == VPPCOM_PROTO_UDP
607 && s->session_state == VCL_STATE_CLOSED)
610 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
615 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
616 s->session_index, mp->handle, format_session_error, mp->retval);
618 if (mp->context != wrk->wrk_index)
619 VDBG (0, "wrong context");
621 vcl_session_table_del_vpp_handle (wrk, mp->handle);
622 vcl_session_free (wrk, s);
626 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
628 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
632 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
635 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
639 fs_index = vcl_segment_table_lookup (mp->segment_handle);
640 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
642 VDBG (0, "segment for session %u is not mounted!", s->session_index);
643 s->session_state = VCL_STATE_DETACHED;
647 s->vpp_handle = mp->new_handle;
648 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
650 vcl_session_table_del_vpp_handle (wrk, mp->handle);
651 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
653 /* Generate new tx event if we have outstanding data */
654 if (svm_fifo_has_event (s->tx_fifo))
655 app_send_io_evt_to_vpp (s->vpp_evt_q,
656 s->tx_fifo->shr->master_session_index,
657 SESSION_IO_EVT_TX, SVM_Q_WAIT);
659 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
660 mp->vpp_thread_index, mp->new_handle);
663 static vcl_session_t *
664 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
666 vcl_session_msg_t *vcl_msg;
667 vcl_session_t *session;
669 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
670 if (PREDICT_FALSE (session != 0))
671 VWRN ("session overlap handle %lu state %u!", msg->handle,
672 session->session_state);
674 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
677 VERR ("couldn't find listen session: listener handle %llx",
678 msg->listener_handle);
682 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
684 vcl_msg->accepted_msg = *msg;
685 /* Session handle points to listener until fully accepted by app */
686 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
691 static vcl_session_t *
692 vcl_session_disconnected_handler (vcl_worker_t * wrk,
693 session_disconnected_msg_t * msg)
695 vcl_session_t *session;
697 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
700 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
704 /* Late disconnect notification on a session that has been closed */
705 if (session->session_state == VCL_STATE_CLOSED)
708 /* Caught a disconnect before actually accepting the session */
709 if (session->session_state == VCL_STATE_LISTEN)
711 if (!vcl_flag_accepted_session (session, msg->handle,
712 VCL_ACCEPTED_F_CLOSED))
713 VDBG (0, "session was not accepted!");
717 /* If not already reset change state */
718 if (session->session_state != VCL_STATE_DISCONNECT)
719 session->session_state = VCL_STATE_VPP_CLOSING;
725 vppcom_session_disconnect (u32 session_handle)
727 vcl_worker_t *wrk = vcl_worker_get_current ();
728 vcl_session_t *session, *listen_session;
729 vcl_session_state_t state;
732 session = vcl_session_get_w_handle (wrk, session_handle);
734 return VPPCOM_EBADFD;
736 vpp_handle = session->vpp_handle;
737 state = session->session_state;
739 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
740 vpp_handle, state, vppcom_session_state_str (state));
742 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
744 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
745 return VPPCOM_EBADFD;
748 if (state == VCL_STATE_VPP_CLOSING)
750 vcl_send_session_disconnected_reply (wrk, session, 0);
751 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
752 session->session_index, vpp_handle);
756 /* Session doesn't have an event queue yet. Probably a non-blocking
757 * connect. Wait for the reply */
758 if (PREDICT_FALSE (!session->vpp_evt_q))
761 VDBG (1, "session %u [0x%llx]: sending disconnect...",
762 session->session_index, vpp_handle);
763 vcl_send_session_disconnect (wrk, session);
766 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
768 listen_session = vcl_session_get (wrk, session->listener_index);
769 listen_session->n_accepted_sessions--;
776 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
778 session_cleanup_msg_t *msg;
779 vcl_session_t *session;
781 msg = (session_cleanup_msg_t *) data;
782 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
785 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
789 if (msg->type == SESSION_CLEANUP_TRANSPORT)
791 /* Transport was cleaned up before we confirmed close. Probably the
792 * app is still waiting for some data that cannot be delivered.
793 * Confirm close to make sure everything is cleaned up.
794 * Move to undetermined state to ensure that the session is not
795 * removed before both vpp and the app cleanup.
796 * - If the app closes first, the session is moved to CLOSED state
797 * and the session cleanup notification from vpp removes the
799 * - If vpp cleans up the session first, the session is moved to
800 * DETACHED state lower and subsequently the close from the app
803 if (session->session_state == VCL_STATE_VPP_CLOSING)
805 vppcom_session_disconnect (vcl_session_handle (session));
806 session->session_state = VCL_STATE_UPDATED;
808 else if (session->session_state == VCL_STATE_DISCONNECT)
810 vcl_send_session_reset_reply (wrk, session, 0);
811 session->session_state = VCL_STATE_UPDATED;
816 vcl_session_table_del_vpp_handle (wrk, msg->handle);
817 /* Should not happen. App did not close the connection so don't free it. */
818 if (session->session_state != VCL_STATE_CLOSED)
820 VDBG (0, "app did not close session %d", session->session_index);
821 session->session_state = VCL_STATE_DETACHED;
822 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
825 vcl_session_free (wrk, session);
829 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
831 session_req_worker_update_msg_t *msg;
834 msg = (session_req_worker_update_msg_t *) data;
835 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
839 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
843 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
845 session_worker_update_reply_msg_t *msg;
848 msg = (session_worker_update_reply_msg_t *) data;
849 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
852 VDBG (0, "unknown handle 0x%llx", msg->handle);
858 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
861 VDBG (0, "failed to attach fifos for %u", s->session_index);
865 s->session_state = VCL_STATE_UPDATED;
867 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
868 s->vpp_handle, wrk->wrk_index);
872 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
875 if (vcm->cfg.vpp_app_socket_api)
876 return vcl_sapi_recv_fds (wrk, fds, n_fds);
878 return vcl_bapi_recv_fds (wrk, fds, n_fds);
882 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
884 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
885 session_app_add_segment_msg_t *msg;
889 msg = (session_app_add_segment_msg_t *) data;
893 vcl_api_recv_fd (wrk, &fd, 1);
894 seg_type = SSVM_SEGMENT_MEMFD;
897 segment_handle = msg->segment_handle;
898 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
900 clib_warning ("invalid segment handle");
904 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
907 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
911 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
916 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
918 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
919 vcl_segment_detach (msg->segment_handle);
920 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
924 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
926 if (!vcm->wrk_rpc_fn)
929 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
933 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
935 session_disconnected_msg_t *disconnected_msg;
936 session_connected_msg_t *connected_msg;
937 session_reset_msg_t *reset_msg;
938 session_event_t *ecpy;
942 switch (e->event_type)
944 case SESSION_IO_EVT_RX:
945 case SESSION_IO_EVT_TX:
946 s = vcl_session_get (wrk, e->session_index);
947 if (!s || !vcl_session_is_open (s))
949 vec_add1 (wrk->unhandled_evts_vector, *e);
951 case SESSION_CTRL_EVT_BOUND:
952 /* We can only wait for only one listen so not postponed */
953 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
955 case SESSION_CTRL_EVT_ACCEPTED:
956 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
957 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
959 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
962 ecpy->session_index = s->session_index;
965 case SESSION_CTRL_EVT_CONNECTED:
966 connected_msg = (session_connected_msg_t *) e->data;
967 sid = vcl_session_connected_handler (wrk, connected_msg);
968 if (!(s = vcl_session_get (wrk, sid)))
970 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
972 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
975 ecpy->session_index = s->session_index;
978 case SESSION_CTRL_EVT_DISCONNECTED:
979 disconnected_msg = (session_disconnected_msg_t *) e->data;
980 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
982 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
984 vec_add1 (wrk->unhandled_evts_vector, *e);
987 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
989 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
992 case SESSION_CTRL_EVT_RESET:
993 reset_msg = (session_reset_msg_t *) e->data;
994 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
996 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
998 vec_add1 (wrk->unhandled_evts_vector, *e);
1001 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1003 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1004 vcl_session_unlisten_reply_handler (wrk, e->data);
1006 case SESSION_CTRL_EVT_MIGRATED:
1007 vcl_session_migrated_handler (wrk, e->data);
1009 case SESSION_CTRL_EVT_CLEANUP:
1010 vcl_session_cleanup_handler (wrk, e->data);
1012 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1013 vcl_session_req_worker_update_handler (wrk, e->data);
1015 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1016 vcl_session_worker_update_reply_handler (wrk, e->data);
1018 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1019 vcl_session_app_add_segment_handler (wrk, e->data);
1021 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1022 vcl_session_app_del_segment_handler (wrk, e->data);
1024 case SESSION_CTRL_EVT_APP_WRK_RPC:
1025 vcl_worker_rpc_handler (wrk, e->data);
1028 clib_warning ("unhandled %u", e->event_type);
1034 vppcom_wait_for_session_state_change (u32 session_index,
1035 vcl_session_state_t state,
1038 vcl_worker_t *wrk = vcl_worker_get_current ();
1039 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1040 vcl_session_t *volatile session;
1041 svm_msg_q_msg_t msg;
1046 session = vcl_session_get (wrk, session_index);
1047 if (PREDICT_FALSE (!session))
1049 return VPPCOM_EBADFD;
1051 if (session->session_state == state)
1055 if (session->session_state == VCL_STATE_DETACHED)
1057 return VPPCOM_ECONNREFUSED;
1060 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1065 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1066 vcl_handle_mq_event (wrk, e);
1067 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1069 while (clib_time_now (&wrk->clib_time) < timeout);
1071 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1072 vppcom_session_state_str (state));
1073 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1075 return VPPCOM_ETIMEDOUT;
1079 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1081 vcl_session_state_t state;
1085 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1088 vec_foreach (sip, wrk->pending_session_wrk_updates)
1090 s = vcl_session_get (wrk, *sip);
1091 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1092 state = s->session_state;
1093 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1095 s->session_state = state;
1097 vec_reset_length (wrk->pending_session_wrk_updates);
1101 vcl_flush_mq_events (void)
1103 vcl_worker_t *wrk = vcl_worker_get_current ();
1104 svm_msg_q_msg_t *msg;
1109 mq = wrk->app_event_queue;
1110 svm_msg_q_lock (mq);
1111 vcl_mq_dequeue_batch (wrk, mq, ~0);
1112 svm_msg_q_unlock (mq);
1114 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1116 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1117 e = svm_msg_q_msg_data (mq, msg);
1118 vcl_handle_mq_event (wrk, e);
1119 svm_msg_q_free_msg (mq, msg);
1121 vec_reset_length (wrk->mq_msg_vector);
1122 vcl_handle_pending_wrk_updates (wrk);
1126 vppcom_session_unbind (u32 session_handle)
1128 vcl_worker_t *wrk = vcl_worker_get_current ();
1129 session_accepted_msg_t *accepted_msg;
1130 vcl_session_t *session = 0;
1131 vcl_session_msg_t *evt;
1133 session = vcl_session_get_w_handle (wrk, session_handle);
1135 return VPPCOM_EBADFD;
1137 /* Flush pending accept events, if any */
1138 while (clib_fifo_elts (session->accept_evts_fifo))
1140 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1141 accepted_msg = &evt->accepted_msg;
1142 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1143 vcl_send_session_accepted_reply (session->vpp_evt_q,
1144 accepted_msg->context,
1145 accepted_msg->handle, -1);
1147 clib_fifo_free (session->accept_evts_fifo);
1149 vcl_send_session_unlisten (wrk, session);
1151 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1152 session->vpp_handle);
1153 vcl_evt (VCL_EVT_UNBIND, session);
1155 session->vpp_handle = ~0;
1156 session->session_state = VCL_STATE_DISCONNECT;
1164 * Notify vpp of the disconnect and mark the worker as free. If we're the
1165 * last worker, do a full cleanup otherwise, since we're probably a forked
1166 * child, avoid syscalls as much as possible. We might've lost privileges.
1169 vppcom_app_exit (void)
1171 if (!pool_elts (vcm->workers))
1173 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1174 vcl_set_worker_index (~0);
1175 vcl_elog_stop (vcm);
1179 vcl_api_attach (void)
1181 if (vcm->cfg.vpp_app_socket_api)
1182 return vcl_sapi_attach ();
1184 return vcl_bapi_attach ();
1188 vcl_api_detach (vcl_worker_t * wrk)
1190 vcl_send_app_detach (wrk);
1192 if (vcm->cfg.vpp_app_socket_api)
1193 return vcl_sapi_detach (wrk);
1195 return vcl_bapi_disconnect_from_vpp ();
1199 * VPPCOM Public API functions
1202 vppcom_app_create (const char *app_name)
1204 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1209 VDBG (1, "already initialized");
1210 return VPPCOM_EEXIST;
1214 vppcom_cfg (&vcm->cfg);
1215 vcl_cfg = &vcm->cfg;
1217 vcm->main_cpu = pthread_self ();
1218 vcm->main_pid = getpid ();
1219 vcm->app_name = format (0, "%s", app_name);
1220 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1221 20 /* timeout in secs */ );
1222 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1223 clib_spinlock_init (&vcm->workers_lock);
1224 clib_rwlock_init (&vcm->segment_table_lock);
1225 atexit (vppcom_app_exit);
1226 vcl_elog_init (vcm);
1228 /* Allocate default worker */
1229 vcl_worker_alloc_and_init ();
1231 if ((rv = vcl_api_attach ()))
1234 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1235 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1241 vppcom_app_destroy (void)
1243 vcl_worker_t *wrk, *current_wrk;
1246 if (!pool_elts (vcm->workers))
1249 vcl_evt (VCL_EVT_DETACH, vcm);
1251 current_wrk = vcl_worker_get_current ();
1254 pool_foreach (wrk, vcm->workers) {
1255 if (current_wrk != wrk)
1256 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1260 vcl_api_detach (current_wrk);
1261 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1263 vcl_elog_stop (vcm);
1266 * Free the heap and fix vcm
1268 heap = clib_mem_get_heap ();
1269 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1271 vcm = &_vppcom_main;
1276 vppcom_session_create (u8 proto, u8 is_nonblocking)
1278 vcl_worker_t *wrk = vcl_worker_get_current ();
1279 vcl_session_t *session;
1281 session = vcl_session_alloc (wrk);
1283 session->session_type = proto;
1284 session->session_state = VCL_STATE_CLOSED;
1285 session->vpp_handle = ~0;
1286 session->is_dgram = vcl_proto_is_dgram (proto);
1289 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1291 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1292 is_nonblocking, session_index);
1294 VDBG (0, "created session %u", session->session_index);
1296 return vcl_session_handle (session);
1300 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1301 vcl_session_handle_t sh, u8 do_disconnect)
1305 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1307 if (s->flags & VCL_SESSION_F_IS_VEP)
1309 u32 next_sh = s->vep.next_sh;
1310 while (next_sh != ~0)
1312 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1313 if (PREDICT_FALSE (rv < 0))
1314 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1315 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1316 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1317 next_sh = s->vep.next_sh;
1322 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1324 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1326 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1327 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1328 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1333 VDBG (1, "session %u [0x%llx] disconnect skipped",
1334 s->session_index, s->vpp_handle);
1338 if (s->session_state == VCL_STATE_LISTEN)
1340 rv = vppcom_session_unbind (sh);
1341 if (PREDICT_FALSE (rv < 0))
1342 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1343 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1344 vppcom_retval_str (rv));
1347 else if (vcl_session_is_ready (s)
1348 || (vcl_session_is_connectable_listener (wrk, s)))
1350 rv = vppcom_session_disconnect (sh);
1351 if (PREDICT_FALSE (rv < 0))
1352 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1353 " rv %d (%s)", s->session_index, s->vpp_handle,
1354 rv, vppcom_retval_str (rv));
1356 else if (s->session_state == VCL_STATE_DISCONNECT)
1358 vcl_send_session_reset_reply (wrk, s, 0);
1360 else if (s->session_state == VCL_STATE_DETACHED)
1362 /* Should not happen. VPP cleaned up before app confirmed close */
1363 VDBG (0, "vpp freed session %d before close", s->session_index);
1367 s->session_state = VCL_STATE_CLOSED;
1369 /* Session is removed only after vpp confirms the disconnect */
1373 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1375 vcl_session_free (wrk, s);
1376 vcl_evt (VCL_EVT_CLOSE, s, rv);
1382 vppcom_session_close (uint32_t session_handle)
1384 vcl_worker_t *wrk = vcl_worker_get_current ();
1385 vcl_session_t *session;
1387 session = vcl_session_get_w_handle (wrk, session_handle);
1389 return VPPCOM_EBADFD;
1390 return vcl_session_cleanup (wrk, session, session_handle,
1391 1 /* do_disconnect */ );
1395 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1397 vcl_worker_t *wrk = vcl_worker_get_current ();
1398 vcl_session_t *session = 0;
1401 return VPPCOM_EINVAL;
1403 session = vcl_session_get_w_handle (wrk, session_handle);
1405 return VPPCOM_EBADFD;
1407 if (session->flags & VCL_SESSION_F_IS_VEP)
1409 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1410 session->session_index);
1411 return VPPCOM_EBADFD;
1414 session->transport.is_ip4 = ep->is_ip4;
1416 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1417 sizeof (ip4_address_t));
1419 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1420 sizeof (ip6_address_t));
1421 session->transport.lcl_port = ep->port;
1423 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1424 "proto %s", session->session_index, session_handle,
1425 session->transport.is_ip4 ? "IPv4" : "IPv6",
1426 format_ip46_address, &session->transport.lcl_ip,
1427 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1428 clib_net_to_host_u16 (session->transport.lcl_port),
1429 vppcom_proto_str (session->session_type));
1430 vcl_evt (VCL_EVT_BIND, session);
1432 if (session->session_type == VPPCOM_PROTO_UDP)
1433 vppcom_session_listen (session_handle, 10);
1439 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1441 vcl_worker_t *wrk = vcl_worker_get_current ();
1442 vcl_session_t *listen_session = 0;
1443 u64 listen_vpp_handle;
1446 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1447 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1448 return VPPCOM_EBADFD;
1450 if (q_len == 0 || q_len == ~0)
1451 q_len = vcm->cfg.listen_queue_size;
1453 listen_vpp_handle = listen_session->vpp_handle;
1454 if (listen_session->session_state == VCL_STATE_LISTEN)
1456 VDBG (0, "session %u [0x%llx]: already in listen state!",
1457 listen_sh, listen_vpp_handle);
1461 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1464 * Send listen request to vpp and wait for reply
1466 vcl_send_session_listen (wrk, listen_session);
1467 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1469 vcm->cfg.session_timeout);
1471 if (PREDICT_FALSE (rv))
1473 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1474 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1475 listen_sh, listen_session->vpp_handle, rv,
1476 vppcom_retval_str (rv));
1484 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1486 if (ls->flags & VCL_SESSION_F_IS_VEP)
1488 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1490 return VPPCOM_EBADFD;
1493 if ((ls->session_state != VCL_STATE_LISTEN)
1494 && (!vcl_session_is_connectable_listener (wrk, ls)))
1496 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1497 " (%s)", ls->vpp_handle, ls->session_state,
1498 vppcom_session_state_str (ls->session_state));
1499 return VPPCOM_EBADFD;
1505 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1507 if (!strcmp (proto_str, "TCP"))
1508 *proto = VPPCOM_PROTO_TCP;
1509 else if (!strcmp (proto_str, "tcp"))
1510 *proto = VPPCOM_PROTO_TCP;
1511 else if (!strcmp (proto_str, "UDP"))
1512 *proto = VPPCOM_PROTO_UDP;
1513 else if (!strcmp (proto_str, "udp"))
1514 *proto = VPPCOM_PROTO_UDP;
1515 else if (!strcmp (proto_str, "TLS"))
1516 *proto = VPPCOM_PROTO_TLS;
1517 else if (!strcmp (proto_str, "tls"))
1518 *proto = VPPCOM_PROTO_TLS;
1519 else if (!strcmp (proto_str, "QUIC"))
1520 *proto = VPPCOM_PROTO_QUIC;
1521 else if (!strcmp (proto_str, "quic"))
1522 *proto = VPPCOM_PROTO_QUIC;
1529 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1532 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1533 vcl_worker_t *wrk = vcl_worker_get_current ();
1534 session_accepted_msg_t accepted_msg;
1535 vcl_session_t *listen_session = 0;
1536 vcl_session_t *client_session = 0;
1537 vcl_session_msg_t *evt;
1538 svm_msg_q_msg_t msg;
1543 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1544 if (!listen_session)
1545 return VPPCOM_EBADFD;
1547 listen_session_index = listen_session->session_index;
1548 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1551 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1553 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1554 accept_flags = evt->flags;
1555 accepted_msg = evt->accepted_msg;
1559 is_nonblocking = vcl_session_has_attr (listen_session,
1560 VCL_SESS_ATTR_NONBLOCK);
1563 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1564 return VPPCOM_EAGAIN;
1566 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1567 return VPPCOM_EAGAIN;
1569 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1570 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1572 vcl_handle_mq_event (wrk, e);
1573 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1576 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1577 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1583 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1584 listen_session_index);
1585 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1586 return VPPCOM_ECONNABORTED;
1588 listen_session = vcl_session_get (wrk, listen_session_index);
1589 client_session = vcl_session_get (wrk, client_session_index);
1591 if (flags & O_NONBLOCK)
1592 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1594 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1595 " flags %d, is_nonblocking %u", listen_session->session_index,
1596 listen_session->vpp_handle, client_session_index,
1597 client_session->vpp_handle, flags,
1598 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1602 ep->is_ip4 = client_session->transport.is_ip4;
1603 ep->port = client_session->transport.rmt_port;
1604 if (client_session->transport.is_ip4)
1605 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1606 sizeof (ip4_address_t));
1608 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1609 sizeof (ip6_address_t));
1612 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1613 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1614 client_session_index, client_session->vpp_handle,
1615 format_ip46_address, &client_session->transport.rmt_ip,
1616 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1617 clib_net_to_host_u16 (client_session->transport.rmt_port),
1618 format_ip46_address, &client_session->transport.lcl_ip,
1619 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1620 clib_net_to_host_u16 (client_session->transport.lcl_port));
1621 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1622 client_session_index);
1625 * Session might have been closed already
1629 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1630 client_session->session_state = VCL_STATE_VPP_CLOSING;
1631 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1632 client_session->session_state = VCL_STATE_DISCONNECT;
1634 return vcl_session_handle (client_session);
1638 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1640 vcl_worker_t *wrk = vcl_worker_get_current ();
1641 vcl_session_t *session = 0;
1645 session = vcl_session_get_w_handle (wrk, session_handle);
1647 return VPPCOM_EBADFD;
1648 session_index = session->session_index;
1650 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1652 VDBG (0, "ERROR: cannot connect epoll session %u!",
1653 session->session_index);
1654 return VPPCOM_EBADFD;
1657 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1659 VDBG (0, "session handle %u [0x%llx]: session already "
1660 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1661 session_handle, session->vpp_handle,
1662 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1663 &session->transport.rmt_ip, session->transport.is_ip4 ?
1664 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1665 clib_net_to_host_u16 (session->transport.rmt_port),
1666 vppcom_proto_str (session->session_type), session->session_state,
1667 vppcom_session_state_str (session->session_state));
1671 /* Attempt to connect a connectionless listener */
1672 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1674 if (session->session_type != VPPCOM_PROTO_UDP)
1675 return VPPCOM_EINVAL;
1676 vcl_send_session_unlisten (wrk, session);
1677 session->session_state = VCL_STATE_CLOSED;
1680 session->transport.is_ip4 = server_ep->is_ip4;
1681 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1682 session->transport.rmt_port = server_ep->port;
1683 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1684 session->flags |= VCL_SESSION_F_CONNECTED;
1686 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1687 "port %d proto %s", session_handle,
1688 vppcom_session_state_str (session->session_state),
1689 session->transport.is_ip4 ? "IPv4" : "IPv6",
1690 format_ip46_address,
1691 &session->transport.rmt_ip, session->transport.is_ip4 ?
1692 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1693 clib_net_to_host_u16 (session->transport.rmt_port),
1694 vppcom_proto_str (session->session_type));
1696 vcl_send_session_connect (wrk, session);
1698 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1700 /* State set to STATE_UPDATED to ensure the session is not assumed
1701 * to be ready and to also allow the app to close it prior to vpp's
1702 * connected reply. */
1703 session->session_state = VCL_STATE_UPDATED;
1704 return VPPCOM_EINPROGRESS;
1708 * Wait for reply from vpp if blocking
1710 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1711 vcm->cfg.session_timeout);
1713 session = vcl_session_get (wrk, session_index);
1714 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1715 session->vpp_handle, rv ? "failed" : "succeeded");
1721 vppcom_session_stream_connect (uint32_t session_handle,
1722 uint32_t parent_session_handle)
1724 vcl_worker_t *wrk = vcl_worker_get_current ();
1725 vcl_session_t *session, *parent_session;
1726 u32 session_index, parent_session_index;
1729 session = vcl_session_get_w_handle (wrk, session_handle);
1731 return VPPCOM_EBADFD;
1732 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1733 if (!parent_session)
1734 return VPPCOM_EBADFD;
1736 session_index = session->session_index;
1737 parent_session_index = parent_session->session_index;
1738 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1740 VDBG (0, "ERROR: cannot connect epoll session %u!",
1741 session->session_index);
1742 return VPPCOM_EBADFD;
1745 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1747 VDBG (0, "session handle %u [0x%llx]: session already "
1748 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1749 session_handle, session->vpp_handle,
1750 parent_session_handle, parent_session->vpp_handle,
1751 vppcom_proto_str (session->session_type), session->session_state,
1752 vppcom_session_state_str (session->session_state));
1756 /* Connect to quic session specifics */
1757 session->transport.is_ip4 = parent_session->transport.is_ip4;
1758 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1759 session->transport.rmt_port = 0;
1760 session->parent_handle = parent_session->vpp_handle;
1762 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1763 session_handle, parent_session_handle, parent_session->vpp_handle);
1766 * Send connect request and wait for reply from vpp
1768 vcl_send_session_connect (wrk, session);
1769 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1770 vcm->cfg.session_timeout);
1772 session->listener_index = parent_session_index;
1773 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1775 parent_session->n_accepted_sessions++;
1777 session = vcl_session_get (wrk, session_index);
1778 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1779 session->vpp_handle, rv ? "failed" : "succeeded");
1785 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1787 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1791 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1794 vcl_worker_t *wrk = vcl_worker_get_current ();
1795 int rv, n_read = 0, is_nonblocking;
1796 vcl_session_t *s = 0;
1797 svm_fifo_t *rx_fifo;
1798 svm_msg_q_msg_t msg;
1803 if (PREDICT_FALSE (!buf))
1804 return VPPCOM_EINVAL;
1806 s = vcl_session_get_w_handle (wrk, session_handle);
1807 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1808 return VPPCOM_EBADFD;
1810 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1812 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1813 s->session_index, s->vpp_handle, s->session_state,
1814 vppcom_session_state_str (s->session_state));
1815 return vcl_session_closed_error (s);
1818 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1819 is_ct = vcl_session_is_ct (s);
1820 mq = wrk->app_event_queue;
1821 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1822 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1824 if (svm_fifo_is_empty_cons (rx_fifo))
1828 if (vcl_session_is_closing (s))
1829 return vcl_session_closing_error (s);
1831 svm_fifo_unset_event (s->rx_fifo);
1832 svm_fifo_unset_event (rx_fifo);
1833 return VPPCOM_EWOULDBLOCK;
1835 while (svm_fifo_is_empty_cons (rx_fifo))
1837 if (vcl_session_is_closing (s))
1838 return vcl_session_closing_error (s);
1841 svm_fifo_unset_event (s->rx_fifo);
1842 svm_fifo_unset_event (rx_fifo);
1843 svm_msg_q_lock (mq);
1844 if (svm_msg_q_is_empty (mq))
1845 svm_msg_q_wait (mq);
1847 svm_msg_q_sub_w_lock (mq, &msg);
1848 e = svm_msg_q_msg_data (mq, &msg);
1849 svm_msg_q_unlock (mq);
1850 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1851 vcl_handle_mq_event (wrk, e);
1852 svm_msg_q_free_msg (mq, &msg);
1859 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1861 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1866 if (svm_fifo_is_empty_cons (rx_fifo))
1869 svm_fifo_unset_event (s->rx_fifo);
1870 svm_fifo_unset_event (rx_fifo);
1871 if (!svm_fifo_is_empty_cons (rx_fifo)
1872 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1874 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1875 e->event_type = SESSION_IO_EVT_RX;
1876 e->session_index = s->session_index;
1879 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1881 /* More data enqueued while reading. Try to drain it
1882 * or fill the buffer. Avoid doing that for dgrams */
1888 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1890 svm_fifo_clear_deq_ntf (rx_fifo);
1891 app_send_io_evt_to_vpp (s->vpp_evt_q,
1892 s->rx_fifo->shr->master_session_index,
1893 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1896 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1897 s->vpp_handle, n_read, rx_fifo);
1903 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1905 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1909 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1911 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1915 vppcom_session_read_segments (uint32_t session_handle,
1916 vppcom_data_segment_t * ds, uint32_t n_segments,
1919 vcl_worker_t *wrk = vcl_worker_get_current ();
1920 int n_read = 0, is_nonblocking;
1921 vcl_session_t *s = 0;
1922 svm_fifo_t *rx_fifo;
1923 svm_msg_q_msg_t msg;
1928 s = vcl_session_get_w_handle (wrk, session_handle);
1929 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1930 return VPPCOM_EBADFD;
1932 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1933 return vcl_session_closed_error (s);
1935 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1936 is_ct = vcl_session_is_ct (s);
1937 mq = wrk->app_event_queue;
1938 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1939 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1941 if (svm_fifo_is_empty_cons (rx_fifo))
1946 svm_fifo_unset_event (s->rx_fifo);
1947 svm_fifo_unset_event (rx_fifo);
1948 return VPPCOM_EWOULDBLOCK;
1950 while (svm_fifo_is_empty_cons (rx_fifo))
1952 if (vcl_session_is_closing (s))
1953 return vcl_session_closing_error (s);
1956 svm_fifo_unset_event (s->rx_fifo);
1957 svm_fifo_unset_event (rx_fifo);
1958 svm_msg_q_lock (mq);
1959 if (svm_msg_q_is_empty (mq))
1960 svm_msg_q_wait (mq);
1962 svm_msg_q_sub_w_lock (mq, &msg);
1963 e = svm_msg_q_msg_data (mq, &msg);
1964 svm_msg_q_unlock (mq);
1965 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1966 vcl_handle_mq_event (wrk, e);
1967 svm_msg_q_free_msg (mq, &msg);
1971 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1972 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1974 return VPPCOM_EAGAIN;
1976 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1979 svm_fifo_unset_event (s->rx_fifo);
1980 svm_fifo_unset_event (rx_fifo);
1981 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1982 && svm_fifo_set_event (rx_fifo)
1983 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1986 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1987 e->event_type = SESSION_IO_EVT_RX;
1988 e->session_index = s->session_index;
1992 s->rx_bytes_pending += n_read;
1997 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
1999 vcl_worker_t *wrk = vcl_worker_get_current ();
2003 s = vcl_session_get_w_handle (wrk, session_handle);
2004 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2007 is_ct = vcl_session_is_ct (s);
2008 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2010 ASSERT (s->rx_bytes_pending < n_bytes);
2011 s->rx_bytes_pending -= n_bytes;
2015 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2017 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2021 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2023 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2025 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2031 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2032 size_t n, u8 is_flush, u8 is_dgram)
2034 int n_write, is_nonblocking;
2035 session_evt_type_t et;
2036 svm_msg_q_msg_t msg;
2037 svm_fifo_t *tx_fifo;
2042 if (PREDICT_FALSE (!buf || n == 0))
2043 return VPPCOM_EINVAL;
2045 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2047 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2048 " session!", s->session_index, s->vpp_handle);
2049 return VPPCOM_EBADFD;
2052 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2054 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2055 s->session_index, s->vpp_handle, s->session_state,
2056 vppcom_session_state_str (s->session_state));
2057 return vcl_session_closed_error (s);;
2060 is_ct = vcl_session_is_ct (s);
2061 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2062 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2064 mq = wrk->app_event_queue;
2065 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2069 return VPPCOM_EWOULDBLOCK;
2071 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2073 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2074 if (vcl_session_is_closing (s))
2075 return vcl_session_closing_error (s);
2076 svm_msg_q_lock (mq);
2077 if (svm_msg_q_is_empty (mq))
2078 svm_msg_q_wait (mq);
2080 svm_msg_q_sub_w_lock (mq, &msg);
2081 e = svm_msg_q_msg_data (mq, &msg);
2082 svm_msg_q_unlock (mq);
2084 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2085 vcl_handle_mq_event (wrk, e);
2086 svm_msg_q_free_msg (mq, &msg);
2090 et = SESSION_IO_EVT_TX;
2091 if (is_flush && !is_ct)
2092 et = SESSION_IO_EVT_TX_FLUSH;
2095 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2096 s->vpp_evt_q, buf, n, et,
2097 0 /* do_evt */ , SVM_Q_WAIT);
2099 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2100 0 /* do_evt */ , SVM_Q_WAIT);
2102 if (svm_fifo_set_event (s->tx_fifo))
2103 app_send_io_evt_to_vpp (
2104 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2106 /* The underlying fifo segment can run out of memory */
2107 if (PREDICT_FALSE (n_write < 0))
2108 return VPPCOM_EAGAIN;
2110 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2111 s->vpp_handle, n_write);
2117 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2119 vcl_worker_t *wrk = vcl_worker_get_current ();
2122 s = vcl_session_get_w_handle (wrk, session_handle);
2123 if (PREDICT_FALSE (!s))
2124 return VPPCOM_EBADFD;
2126 return vppcom_session_write_inline (wrk, s, buf, n,
2127 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2131 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2133 vcl_worker_t *wrk = vcl_worker_get_current ();
2136 s = vcl_session_get_w_handle (wrk, session_handle);
2137 if (PREDICT_FALSE (!s))
2138 return VPPCOM_EBADFD;
2140 return vppcom_session_write_inline (wrk, s, buf, n,
2141 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2144 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2145 if (PREDICT_FALSE (!_s->rx_fifo)) \
2147 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2149 if (!vcl_session_is_ct (_s)) \
2151 svm_fifo_unset_event (_s->rx_fifo); \
2152 if (svm_fifo_is_empty (_s->rx_fifo)) \
2155 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2157 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2158 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2164 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2165 unsigned long n_bits, unsigned long *read_map,
2166 unsigned long *write_map,
2167 unsigned long *except_map, u32 * bits_set)
2169 session_disconnected_msg_t *disconnected_msg;
2170 session_connected_msg_t *connected_msg;
2174 switch (e->event_type)
2176 case SESSION_IO_EVT_RX:
2177 sid = e->session_index;
2178 s = vcl_session_get (wrk, sid);
2179 if (!s || !vcl_session_is_open (s))
2181 vcl_fifo_rx_evt_valid_or_break (s);
2182 if (sid < n_bits && read_map)
2184 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2188 case SESSION_IO_EVT_TX:
2189 sid = e->session_index;
2190 s = vcl_session_get (wrk, sid);
2191 if (!s || !vcl_session_is_open (s))
2193 if (sid < n_bits && write_map)
2195 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2199 case SESSION_CTRL_EVT_ACCEPTED:
2201 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2203 s = vcl_session_get (wrk, e->session_index);
2206 sid = s->session_index;
2207 if (sid < n_bits && read_map)
2209 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2213 case SESSION_CTRL_EVT_CONNECTED:
2216 connected_msg = (session_connected_msg_t *) e->data;
2217 sid = vcl_session_connected_handler (wrk, connected_msg);
2220 sid = e->session_index;
2221 if (sid == VCL_INVALID_SESSION_INDEX)
2223 if (sid < n_bits && write_map)
2225 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2229 case SESSION_CTRL_EVT_DISCONNECTED:
2230 disconnected_msg = (session_disconnected_msg_t *) e->data;
2231 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2234 sid = s->session_index;
2235 if (sid < n_bits && except_map)
2237 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2241 case SESSION_CTRL_EVT_RESET:
2242 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2243 if (sid < n_bits && except_map)
2245 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2249 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2250 vcl_session_unlisten_reply_handler (wrk, e->data);
2252 case SESSION_CTRL_EVT_MIGRATED:
2253 vcl_session_migrated_handler (wrk, e->data);
2255 case SESSION_CTRL_EVT_CLEANUP:
2256 vcl_session_cleanup_handler (wrk, e->data);
2258 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2259 vcl_session_worker_update_reply_handler (wrk, e->data);
2261 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2262 vcl_session_req_worker_update_handler (wrk, e->data);
2264 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2265 vcl_session_app_add_segment_handler (wrk, e->data);
2267 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2268 vcl_session_app_del_segment_handler (wrk, e->data);
2270 case SESSION_CTRL_EVT_APP_WRK_RPC:
2271 vcl_worker_rpc_handler (wrk, e->data);
2274 clib_warning ("unhandled: %u", e->event_type);
2280 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2281 unsigned long n_bits, unsigned long *read_map,
2282 unsigned long *write_map, unsigned long *except_map,
2283 double time_to_wait, u32 * bits_set)
2285 svm_msg_q_msg_t *msg;
2289 svm_msg_q_lock (mq);
2290 if (svm_msg_q_is_empty (mq))
2294 svm_msg_q_unlock (mq);
2300 svm_msg_q_unlock (mq);
2303 else if (time_to_wait < 0)
2305 svm_msg_q_wait (mq);
2309 if (svm_msg_q_timedwait (mq, time_to_wait))
2311 svm_msg_q_unlock (mq);
2316 vcl_mq_dequeue_batch (wrk, mq, ~0);
2317 svm_msg_q_unlock (mq);
2319 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2321 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2322 e = svm_msg_q_msg_data (mq, msg);
2323 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2324 except_map, bits_set);
2325 svm_msg_q_free_msg (mq, msg);
2327 vec_reset_length (wrk->mq_msg_vector);
2328 vcl_handle_pending_wrk_updates (wrk);
2333 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2334 vcl_si_set * read_map, vcl_si_set * write_map,
2335 vcl_si_set * except_map, double time_to_wait,
2338 double wait = 0, start = 0;
2342 wait = time_to_wait;
2343 start = clib_time_now (&wrk->clib_time);
2348 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2349 write_map, except_map, wait, bits_set);
2355 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2363 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2364 vcl_si_set * read_map, vcl_si_set * write_map,
2365 vcl_si_set * except_map, double time_to_wait,
2368 vcl_mq_evt_conn_t *mqc;
2369 int __clib_unused n_read;
2373 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2374 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2375 vec_len (wrk->mq_events), time_to_wait);
2376 for (i = 0; i < n_mq_evts; i++)
2378 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2379 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2380 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2381 except_map, 0, bits_set);
2384 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2388 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2389 vcl_si_set * except_map, double time_to_wait)
2391 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2392 vcl_worker_t *wrk = vcl_worker_get_current ();
2393 vcl_session_t *session = 0;
2396 if (n_bits && read_map)
2398 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2399 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2400 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2401 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2403 if (n_bits && write_map)
2405 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2406 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2407 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2408 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2410 if (n_bits && except_map)
2412 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2413 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2414 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2415 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2425 clib_bitmap_foreach (sid, wrk->wr_bitmap) {
2426 if (!(session = vcl_session_get (wrk, sid)))
2428 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2433 if (vcl_session_write_ready (session))
2435 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2439 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2446 clib_bitmap_foreach (sid, wrk->rd_bitmap) {
2447 if (!(session = vcl_session_get (wrk, sid)))
2449 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2454 if (vcl_session_read_ready (session))
2456 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2464 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2466 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2467 read_map, write_map, except_map, &bits_set);
2469 vec_reset_length (wrk->unhandled_evts_vector);
2471 if (vcm->cfg.use_mq_eventfd)
2472 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2473 time_to_wait, &bits_set);
2475 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2476 time_to_wait, &bits_set);
2482 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2484 vppcom_epoll_t *vep;
2485 u32 sh = vep_handle;
2488 if (VPPCOM_DEBUG <= 2)
2491 s = vcl_session_get_w_handle (wrk, vep_handle);
2492 if (PREDICT_FALSE (!s))
2494 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2497 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2499 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2503 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2506 " is_vep_session = %u\n"
2507 " next_sh = 0x%x (%u)\n"
2508 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2509 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2511 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2513 s = vcl_session_get_w_handle (wrk, sh);
2514 if (PREDICT_FALSE (!s))
2516 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2519 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2521 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2523 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2525 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2529 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2530 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2531 sh, s->vep.vep_sh, vep_handle);
2532 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2534 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2536 " next_sh = 0x%x (%u)\n"
2537 " prev_sh = 0x%x (%u)\n"
2538 " vep_sh = 0x%x (%u)\n"
2539 " ev.events = 0x%x\n"
2540 " ev.data.u64 = 0x%llx\n"
2543 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2544 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2545 vep->ev.data.u64, vep->et_mask);
2550 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2554 vppcom_epoll_create (void)
2556 vcl_worker_t *wrk = vcl_worker_get_current ();
2557 vcl_session_t *vep_session;
2559 vep_session = vcl_session_alloc (wrk);
2561 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2562 vep_session->vep.vep_sh = ~0;
2563 vep_session->vep.next_sh = ~0;
2564 vep_session->vep.prev_sh = ~0;
2565 vep_session->vpp_handle = ~0;
2567 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2568 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2570 return vcl_session_handle (vep_session);
2574 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2575 struct epoll_event *event)
2577 vcl_worker_t *wrk = vcl_worker_get_current ();
2578 vcl_session_t *vep_session;
2583 if (vep_handle == session_handle)
2585 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2586 return VPPCOM_EINVAL;
2589 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2590 if (PREDICT_FALSE (!vep_session))
2592 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2593 return VPPCOM_EBADFD;
2595 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2597 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2598 return VPPCOM_EINVAL;
2601 ASSERT (vep_session->vep.vep_sh == ~0);
2602 ASSERT (vep_session->vep.prev_sh == ~0);
2604 s = vcl_session_get_w_handle (wrk, session_handle);
2605 if (PREDICT_FALSE (!s))
2607 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2608 return VPPCOM_EBADFD;
2610 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2612 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2613 return VPPCOM_EINVAL;
2619 if (PREDICT_FALSE (!event))
2621 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2622 return VPPCOM_EINVAL;
2624 if (vep_session->vep.next_sh != ~0)
2626 vcl_session_t *next_session;
2627 next_session = vcl_session_get_w_handle (wrk,
2628 vep_session->vep.next_sh);
2629 if (PREDICT_FALSE (!next_session))
2631 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2632 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2633 return VPPCOM_EBADFD;
2635 ASSERT (next_session->vep.prev_sh == vep_handle);
2636 next_session->vep.prev_sh = session_handle;
2638 s->vep.next_sh = vep_session->vep.next_sh;
2639 s->vep.prev_sh = vep_handle;
2640 s->vep.vep_sh = vep_handle;
2641 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2643 s->flags &= ~VCL_SESSION_F_IS_VEP;
2644 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2645 vep_session->vep.next_sh = session_handle;
2647 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2648 if (txf && (event->events & EPOLLOUT))
2649 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2651 /* Generate EPOLLOUT if tx fifo not full */
2652 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2654 session_event_t e = { 0 };
2655 e.event_type = SESSION_IO_EVT_TX;
2656 e.session_index = s->session_index;
2657 vec_add1 (wrk->unhandled_evts_vector, e);
2659 /* Generate EPOLLIN if rx fifo has data */
2660 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2662 session_event_t e = { 0 };
2663 e.event_type = SESSION_IO_EVT_RX;
2664 e.session_index = s->session_index;
2665 vec_add1 (wrk->unhandled_evts_vector, e);
2667 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2668 vep_handle, session_handle, event->events, event->data.u64);
2669 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2673 if (PREDICT_FALSE (!event))
2675 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2679 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2681 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2685 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2687 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2688 session_handle, s->vep.vep_sh, vep_handle);
2693 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2694 if ((event->events & EPOLLOUT) &&
2695 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2697 session_event_t e = { 0 };
2698 e.event_type = SESSION_IO_EVT_TX;
2699 e.session_index = s->session_index;
2700 vec_add1 (wrk->unhandled_evts_vector, e);
2702 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2704 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2705 if (event->events & EPOLLOUT)
2706 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2708 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2709 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2710 vep_handle, session_handle, event->events, event->data.u64);
2714 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2716 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2720 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2722 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2723 session_handle, s->vep.vep_sh, vep_handle);
2728 if (s->vep.prev_sh == vep_handle)
2729 vep_session->vep.next_sh = s->vep.next_sh;
2732 vcl_session_t *prev_session;
2733 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2734 if (PREDICT_FALSE (!prev_session))
2736 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2737 s->vep.prev_sh, session_handle);
2738 return VPPCOM_EBADFD;
2740 ASSERT (prev_session->vep.next_sh == session_handle);
2741 prev_session->vep.next_sh = s->vep.next_sh;
2743 if (s->vep.next_sh != ~0)
2745 vcl_session_t *next_session;
2746 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2747 if (PREDICT_FALSE (!next_session))
2749 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2750 s->vep.next_sh, session_handle);
2751 return VPPCOM_EBADFD;
2753 ASSERT (next_session->vep.prev_sh == session_handle);
2754 next_session->vep.prev_sh = s->vep.prev_sh;
2757 memset (&s->vep, 0, sizeof (s->vep));
2758 s->vep.next_sh = ~0;
2759 s->vep.prev_sh = ~0;
2761 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2763 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2765 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2767 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2769 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2773 VDBG (0, "Invalid operation (%d)!", op);
2777 vep_verify_epoll_chain (wrk, vep_handle);
2784 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2785 struct epoll_event *events, u32 * num_ev)
2787 session_disconnected_msg_t *disconnected_msg;
2788 session_connected_msg_t *connected_msg;
2789 u32 sid = ~0, session_events;
2790 u64 session_evt_data = ~0;
2794 switch (e->event_type)
2796 case SESSION_IO_EVT_RX:
2797 sid = e->session_index;
2798 s = vcl_session_get (wrk, sid);
2799 if (vcl_session_is_closed (s))
2801 vcl_fifo_rx_evt_valid_or_break (s);
2802 session_events = s->vep.ev.events;
2803 if (!(EPOLLIN & s->vep.ev.events)
2804 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2807 events[*num_ev].events |= EPOLLIN;
2808 session_evt_data = s->vep.ev.data.u64;
2809 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2811 case SESSION_IO_EVT_TX:
2812 sid = e->session_index;
2813 s = vcl_session_get (wrk, sid);
2814 if (vcl_session_is_closed (s))
2816 session_events = s->vep.ev.events;
2817 if (!(EPOLLOUT & session_events))
2820 events[*num_ev].events |= EPOLLOUT;
2821 session_evt_data = s->vep.ev.data.u64;
2822 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2823 s->ct_tx_fifo : s->tx_fifo);
2825 case SESSION_CTRL_EVT_ACCEPTED:
2827 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2829 s = vcl_session_get (wrk, e->session_index);
2832 session_events = s->vep.ev.events;
2833 sid = s->session_index;
2834 if (!(EPOLLIN & session_events))
2837 events[*num_ev].events |= EPOLLIN;
2838 session_evt_data = s->vep.ev.data.u64;
2840 case SESSION_CTRL_EVT_CONNECTED:
2843 connected_msg = (session_connected_msg_t *) e->data;
2844 sid = vcl_session_connected_handler (wrk, connected_msg);
2847 sid = e->session_index;
2848 s = vcl_session_get (wrk, sid);
2849 if (vcl_session_is_closed (s))
2851 session_events = s->vep.ev.events;
2852 /* Generate EPOLLOUT because there's no connected event */
2853 if (!(EPOLLOUT & session_events))
2856 events[*num_ev].events |= EPOLLOUT;
2857 session_evt_data = s->vep.ev.data.u64;
2858 if (s->session_state == VCL_STATE_DETACHED)
2859 events[*num_ev].events |= EPOLLHUP;
2861 case SESSION_CTRL_EVT_DISCONNECTED:
2862 disconnected_msg = (session_disconnected_msg_t *) e->data;
2863 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2864 if (vcl_session_is_closed (s))
2866 sid = s->session_index;
2867 session_events = s->vep.ev.events;
2869 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2870 session_evt_data = s->vep.ev.data.u64;
2872 case SESSION_CTRL_EVT_RESET:
2873 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2874 s = vcl_session_get (wrk, sid);
2875 if (vcl_session_is_closed (s))
2877 session_events = s->vep.ev.events;
2879 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2880 session_evt_data = s->vep.ev.data.u64;
2882 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2883 vcl_session_unlisten_reply_handler (wrk, e->data);
2885 case SESSION_CTRL_EVT_MIGRATED:
2886 vcl_session_migrated_handler (wrk, e->data);
2888 case SESSION_CTRL_EVT_CLEANUP:
2889 vcl_session_cleanup_handler (wrk, e->data);
2891 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2892 vcl_session_req_worker_update_handler (wrk, e->data);
2894 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2895 vcl_session_worker_update_reply_handler (wrk, e->data);
2897 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2898 vcl_session_app_add_segment_handler (wrk, e->data);
2900 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2901 vcl_session_app_del_segment_handler (wrk, e->data);
2903 case SESSION_CTRL_EVT_APP_WRK_RPC:
2904 vcl_worker_rpc_handler (wrk, e->data);
2907 VDBG (0, "unhandled: %u", e->event_type);
2913 events[*num_ev].data.u64 = session_evt_data;
2914 if (EPOLLONESHOT & session_events)
2916 s = vcl_session_get (wrk, sid);
2917 s->vep.ev.events = 0;
2924 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2925 struct epoll_event *events, u32 maxevents,
2926 double wait_for_time, u32 * num_ev)
2928 svm_msg_q_msg_t *msg;
2932 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2933 goto handle_dequeued;
2935 svm_msg_q_lock (mq);
2936 if (svm_msg_q_is_empty (mq))
2940 svm_msg_q_unlock (mq);
2943 else if (wait_for_time < 0)
2945 svm_msg_q_wait (mq);
2949 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2951 svm_msg_q_unlock (mq);
2956 ASSERT (maxevents > *num_ev);
2957 vcl_mq_dequeue_batch (wrk, mq, ~0);
2958 svm_msg_q_unlock (mq);
2961 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2963 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2964 e = svm_msg_q_msg_data (mq, msg);
2965 if (*num_ev < maxevents)
2966 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2968 vcl_handle_mq_event (wrk, e);
2969 svm_msg_q_free_msg (mq, msg);
2971 vec_reset_length (wrk->mq_msg_vector);
2972 vcl_handle_pending_wrk_updates (wrk);
2977 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2978 int maxevents, u32 n_evts, double wait_for_time)
2980 double wait = 0, start = 0, now;
2984 wait = wait_for_time;
2985 start = clib_time_now (&wrk->clib_time);
2990 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2997 now = clib_time_now (&wrk->clib_time);
2998 wait -= (now - start) * 1e3;
3007 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3008 int maxevents, u32 n_evts, double wait_for_time)
3010 vcl_mq_evt_conn_t *mqc;
3011 int __clib_unused n_read;
3015 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3017 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3018 vec_len (wrk->mq_events), wait_for_time);
3019 for (i = 0; i < n_mq_evts; i++)
3021 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3022 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3023 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3025 if (!n_evts && n_mq_evts > 0)
3028 return (int) n_evts;
3032 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3033 int maxevents, double wait_for_time)
3035 vcl_worker_t *wrk = vcl_worker_get_current ();
3036 vcl_session_t *vep_session;
3040 if (PREDICT_FALSE (maxevents <= 0))
3042 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3043 return VPPCOM_EINVAL;
3046 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3048 return VPPCOM_EBADFD;
3050 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3052 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3053 return VPPCOM_EINVAL;
3056 memset (events, 0, sizeof (*events) * maxevents);
3058 if (vec_len (wrk->unhandled_evts_vector))
3060 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3062 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3064 if (n_evts == maxevents)
3066 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3070 vec_reset_length (wrk->unhandled_evts_vector);
3073 if (vcm->cfg.use_mq_eventfd)
3074 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3077 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3082 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3083 void *buffer, uint32_t * buflen)
3085 vcl_worker_t *wrk = vcl_worker_get_current ();
3086 vcl_session_t *session;
3088 u32 *flags = buffer, tmp_flags = 0;
3089 vppcom_endpt_t *ep = buffer;
3091 session = vcl_session_get_w_handle (wrk, session_handle);
3093 return VPPCOM_EBADFD;
3097 case VPPCOM_ATTR_GET_NREAD:
3098 rv = vcl_session_read_ready (session);
3099 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3103 case VPPCOM_ATTR_GET_NWRITE:
3104 rv = vcl_session_write_ready (session);
3105 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3109 case VPPCOM_ATTR_GET_FLAGS:
3110 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3114 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3116 *buflen = sizeof (*flags);
3117 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3118 "is_nonblocking = %u", session_handle, *flags,
3119 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3125 case VPPCOM_ATTR_SET_FLAGS:
3126 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3128 if (*flags & O_NONBLOCK)
3129 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3131 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3133 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3134 " is_nonblocking = %u", session_handle, *flags,
3135 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3141 case VPPCOM_ATTR_GET_PEER_ADDR:
3142 if (PREDICT_TRUE (buffer && buflen &&
3143 (*buflen >= sizeof (*ep)) && ep->ip))
3145 ep->is_ip4 = session->transport.is_ip4;
3146 ep->port = session->transport.rmt_port;
3147 if (session->transport.is_ip4)
3148 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3149 sizeof (ip4_address_t));
3151 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3152 sizeof (ip6_address_t));
3153 *buflen = sizeof (*ep);
3154 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3155 "addr = %U, port %u", session_handle, ep->is_ip4,
3156 format_ip46_address, &session->transport.rmt_ip,
3157 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3158 clib_net_to_host_u16 (ep->port));
3164 case VPPCOM_ATTR_GET_LCL_ADDR:
3165 if (PREDICT_TRUE (buffer && buflen &&
3166 (*buflen >= sizeof (*ep)) && ep->ip))
3168 ep->is_ip4 = session->transport.is_ip4;
3169 ep->port = session->transport.lcl_port;
3170 if (session->transport.is_ip4)
3171 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3172 sizeof (ip4_address_t));
3174 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3175 sizeof (ip6_address_t));
3176 *buflen = sizeof (*ep);
3177 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3178 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3179 &session->transport.lcl_ip,
3180 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3181 clib_net_to_host_u16 (ep->port));
3187 case VPPCOM_ATTR_SET_LCL_ADDR:
3188 if (PREDICT_TRUE (buffer && buflen &&
3189 (*buflen >= sizeof (*ep)) && ep->ip))
3191 session->transport.is_ip4 = ep->is_ip4;
3192 session->transport.lcl_port = ep->port;
3193 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3194 *buflen = sizeof (*ep);
3195 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3196 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3197 &session->transport.lcl_ip,
3198 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3199 clib_net_to_host_u16 (ep->port));
3205 case VPPCOM_ATTR_GET_LIBC_EPFD:
3206 rv = session->libc_epfd;
3207 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3210 case VPPCOM_ATTR_SET_LIBC_EPFD:
3211 if (PREDICT_TRUE (buffer && buflen &&
3212 (*buflen == sizeof (session->libc_epfd))))
3214 session->libc_epfd = *(int *) buffer;
3215 *buflen = sizeof (session->libc_epfd);
3217 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3218 session->libc_epfd, *buflen);
3224 case VPPCOM_ATTR_GET_PROTOCOL:
3225 if (buffer && buflen && (*buflen >= sizeof (int)))
3227 *(int *) buffer = session->session_type;
3228 *buflen = sizeof (int);
3230 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3231 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3237 case VPPCOM_ATTR_GET_LISTEN:
3238 if (buffer && buflen && (*buflen >= sizeof (int)))
3240 *(int *) buffer = vcl_session_has_attr (session,
3241 VCL_SESS_ATTR_LISTEN);
3242 *buflen = sizeof (int);
3244 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3251 case VPPCOM_ATTR_GET_ERROR:
3252 if (buffer && buflen && (*buflen >= sizeof (int)))
3254 *(int *) buffer = 0;
3255 *buflen = sizeof (int);
3257 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3258 *(int *) buffer, *buflen);
3264 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3265 if (buffer && buflen && (*buflen >= sizeof (u32)))
3269 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3271 svm_fifo_size (session->tx_fifo) :
3272 vcm->cfg.tx_fifo_size);
3273 *buflen = sizeof (u32);
3275 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3276 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3283 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3284 if (buffer && buflen && (*buflen == sizeof (u32)))
3287 session->sndbuf_size = *(u32 *) buffer;
3288 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3289 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3296 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3297 if (buffer && buflen && (*buflen >= sizeof (u32)))
3301 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3303 svm_fifo_size (session->rx_fifo) :
3304 vcm->cfg.rx_fifo_size);
3305 *buflen = sizeof (u32);
3307 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3308 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3314 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3315 if (buffer && buflen && (*buflen == sizeof (u32)))
3318 session->rcvbuf_size = *(u32 *) buffer;
3319 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3320 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3327 case VPPCOM_ATTR_GET_REUSEADDR:
3328 if (buffer && buflen && (*buflen >= sizeof (int)))
3331 *(int *) buffer = vcl_session_has_attr (session,
3332 VCL_SESS_ATTR_REUSEADDR);
3333 *buflen = sizeof (int);
3335 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3336 *(int *) buffer, *buflen);
3342 case VPPCOM_ATTR_SET_REUSEADDR:
3343 if (buffer && buflen && (*buflen == sizeof (int)) &&
3344 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3347 if (*(int *) buffer)
3348 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3350 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3352 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3353 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3360 case VPPCOM_ATTR_GET_REUSEPORT:
3361 if (buffer && buflen && (*buflen >= sizeof (int)))
3364 *(int *) buffer = vcl_session_has_attr (session,
3365 VCL_SESS_ATTR_REUSEPORT);
3366 *buflen = sizeof (int);
3368 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3369 *(int *) buffer, *buflen);
3375 case VPPCOM_ATTR_SET_REUSEPORT:
3376 if (buffer && buflen && (*buflen == sizeof (int)) &&
3377 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3380 if (*(int *) buffer)
3381 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3383 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3385 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3386 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3393 case VPPCOM_ATTR_GET_BROADCAST:
3394 if (buffer && buflen && (*buflen >= sizeof (int)))
3397 *(int *) buffer = vcl_session_has_attr (session,
3398 VCL_SESS_ATTR_BROADCAST);
3399 *buflen = sizeof (int);
3401 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3402 *(int *) buffer, *buflen);
3408 case VPPCOM_ATTR_SET_BROADCAST:
3409 if (buffer && buflen && (*buflen == sizeof (int)))
3412 if (*(int *) buffer)
3413 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3415 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3417 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3418 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3425 case VPPCOM_ATTR_GET_V6ONLY:
3426 if (buffer && buflen && (*buflen >= sizeof (int)))
3429 *(int *) buffer = vcl_session_has_attr (session,
3430 VCL_SESS_ATTR_V6ONLY);
3431 *buflen = sizeof (int);
3433 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3434 *(int *) buffer, *buflen);
3440 case VPPCOM_ATTR_SET_V6ONLY:
3441 if (buffer && buflen && (*buflen == sizeof (int)))
3444 if (*(int *) buffer)
3445 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3447 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3449 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3450 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3457 case VPPCOM_ATTR_GET_KEEPALIVE:
3458 if (buffer && buflen && (*buflen >= sizeof (int)))
3461 *(int *) buffer = vcl_session_has_attr (session,
3462 VCL_SESS_ATTR_KEEPALIVE);
3463 *buflen = sizeof (int);
3465 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3466 *(int *) buffer, *buflen);
3472 case VPPCOM_ATTR_SET_KEEPALIVE:
3473 if (buffer && buflen && (*buflen == sizeof (int)))
3476 if (*(int *) buffer)
3477 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3479 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3481 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3482 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3489 case VPPCOM_ATTR_GET_TCP_NODELAY:
3490 if (buffer && buflen && (*buflen >= sizeof (int)))
3493 *(int *) buffer = vcl_session_has_attr (session,
3494 VCL_SESS_ATTR_TCP_NODELAY);
3495 *buflen = sizeof (int);
3497 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3498 *(int *) buffer, *buflen);
3504 case VPPCOM_ATTR_SET_TCP_NODELAY:
3505 if (buffer && buflen && (*buflen == sizeof (int)))
3508 if (*(int *) buffer)
3509 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3511 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3513 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3514 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3521 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3522 if (buffer && buflen && (*buflen >= sizeof (int)))
3525 *(int *) buffer = vcl_session_has_attr (session,
3526 VCL_SESS_ATTR_TCP_KEEPIDLE);
3527 *buflen = sizeof (int);
3529 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3530 *(int *) buffer, *buflen);
3536 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3537 if (buffer && buflen && (*buflen == sizeof (int)))
3540 if (*(int *) buffer)
3541 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3543 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3545 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3546 vcl_session_has_attr (session,
3547 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3553 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3554 if (buffer && buflen && (*buflen >= sizeof (int)))
3557 *(int *) buffer = vcl_session_has_attr (session,
3558 VCL_SESS_ATTR_TCP_KEEPINTVL);
3559 *buflen = sizeof (int);
3561 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3562 *(int *) buffer, *buflen);
3568 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3569 if (buffer && buflen && (*buflen == sizeof (int)))
3572 if (*(int *) buffer)
3573 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3575 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3577 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3578 vcl_session_has_attr (session,
3579 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3585 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3586 if (buffer && buflen && (*buflen >= sizeof (u32)))
3589 *(u32 *) buffer = session->user_mss;
3590 *buflen = sizeof (int);
3592 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3593 *(int *) buffer, *buflen);
3599 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3600 if (buffer && buflen && (*buflen == sizeof (u32)))
3603 session->user_mss = *(u32 *) buffer;
3605 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3606 session->user_mss, *buflen);
3612 case VPPCOM_ATTR_SET_SHUT:
3613 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3614 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3615 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3616 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3619 case VPPCOM_ATTR_GET_SHUT:
3620 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3622 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3625 *(int *) buffer = SHUT_RD;
3626 else if (tmp_flags == 2)
3627 *(int *) buffer = SHUT_WR;
3628 else if (tmp_flags == 3)
3629 *(int *) buffer = SHUT_RDWR;
3630 *buflen = sizeof (int);
3633 case VPPCOM_ATTR_SET_CONNECTED:
3634 session->flags |= VCL_SESSION_F_CONNECTED;
3646 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3647 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3649 vcl_worker_t *wrk = vcl_worker_get_current ();
3650 vcl_session_t *session;
3654 rv = vppcom_session_read (session_handle, buffer, buflen);
3655 else if (flags & MSG_PEEK)
3656 rv = vppcom_session_peek (session_handle, buffer, buflen);
3659 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3660 return VPPCOM_EAFNOSUPPORT;
3665 session = vcl_session_get_w_handle (wrk, session_handle);
3666 if (session->transport.is_ip4)
3667 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3668 sizeof (ip4_address_t));
3670 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3671 sizeof (ip6_address_t));
3672 ep->is_ip4 = session->transport.is_ip4;
3673 ep->port = session->transport.rmt_port;
3680 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3681 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3683 vcl_worker_t *wrk = vcl_worker_get_current ();
3686 s = vcl_session_get_w_handle (wrk, session_handle);
3688 return VPPCOM_EBADFD;
3691 return VPPCOM_EINVAL;
3695 if (!vcl_session_is_cl (s))
3696 return VPPCOM_EINVAL;
3698 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3699 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3701 u32 session_index = s->session_index;
3702 f64 timeout = vcm->cfg.session_timeout;
3705 vcl_send_session_connect (wrk, s);
3706 rv = vppcom_wait_for_session_state_change (session_index,
3711 s = vcl_session_get (wrk, session_index);
3714 s->transport.is_ip4 = ep->is_ip4;
3715 s->transport.rmt_port = ep->port;
3716 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3721 // TBD check the flags and do the right thing
3722 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3725 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3726 s->is_dgram ? 1 : 0));
3730 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3732 vcl_worker_t *wrk = vcl_worker_get_current ();
3733 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3734 u32 i, keep_trying = 1;
3735 svm_msg_q_msg_t msg;
3739 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3742 return VPPCOM_EFAULT;
3746 vcl_session_t *session;
3748 /* Dequeue all events and drop all unhandled io events */
3749 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3751 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3752 vcl_handle_mq_event (wrk, e);
3753 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3755 vec_reset_length (wrk->unhandled_evts_vector);
3757 for (i = 0; i < n_sids; i++)
3759 session = vcl_session_get (wrk, vp[i].sh);
3762 vp[i].revents = POLLHUP;
3769 if (POLLIN & vp[i].events)
3771 rv = vcl_session_read_ready (session);
3774 vp[i].revents |= POLLIN;
3781 case VPPCOM_ECONNRESET:
3782 vp[i].revents = POLLHUP;
3786 vp[i].revents = POLLERR;
3793 if (POLLOUT & vp[i].events)
3795 rv = vcl_session_write_ready (session);
3798 vp[i].revents |= POLLOUT;
3805 case VPPCOM_ECONNRESET:
3806 vp[i].revents = POLLHUP;
3810 vp[i].revents = POLLERR;
3817 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3819 vp[i].revents = POLLNVAL;
3823 if (wait_for_time != -1)
3824 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3826 while ((num_ev == 0) && keep_trying);
3832 vppcom_mq_epoll_fd (void)
3834 vcl_worker_t *wrk = vcl_worker_get_current ();
3835 return wrk->mqs_epfd;
3839 vppcom_session_index (vcl_session_handle_t session_handle)
3841 return session_handle & 0xFFFFFF;
3845 vppcom_session_worker (vcl_session_handle_t session_handle)
3847 return session_handle >> 24;
3851 vppcom_worker_register (void)
3853 if (!vcl_worker_alloc_and_init ())
3854 return VPPCOM_EEXIST;
3856 if (vcl_worker_register_with_vpp ())
3857 return VPPCOM_EEXIST;
3863 vppcom_worker_unregister (void)
3865 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3866 vcl_set_worker_index (~0);
3870 vppcom_worker_index_set (int index)
3872 vcl_set_worker_index (index);
3876 vppcom_worker_index (void)
3878 return vcl_get_worker_index ();
3882 vppcom_worker_mqs_epfd (void)
3884 vcl_worker_t *wrk = vcl_worker_get_current ();
3885 if (!vcm->cfg.use_mq_eventfd)
3887 return wrk->mqs_epfd;
3891 vppcom_session_is_connectable_listener (uint32_t session_handle)
3893 vcl_session_t *session;
3894 vcl_worker_t *wrk = vcl_worker_get_current ();
3895 session = vcl_session_get_w_handle (wrk, session_handle);
3897 return VPPCOM_EBADFD;
3898 return vcl_session_is_connectable_listener (wrk, session);
3902 vppcom_session_listener (uint32_t session_handle)
3904 vcl_worker_t *wrk = vcl_worker_get_current ();
3905 vcl_session_t *listen_session, *session;
3906 session = vcl_session_get_w_handle (wrk, session_handle);
3908 return VPPCOM_EBADFD;
3909 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3910 return VPPCOM_EBADFD;
3911 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3912 if (!listen_session)
3913 return VPPCOM_EBADFD;
3914 return vcl_session_handle (listen_session);
3918 vppcom_session_n_accepted (uint32_t session_handle)
3920 vcl_worker_t *wrk = vcl_worker_get_current ();
3921 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3923 return VPPCOM_EBADFD;
3924 return session->n_accepted_sessions;
3928 vppcom_proto_str (vppcom_proto_t proto)
3930 char const *proto_str;
3934 case VPPCOM_PROTO_TCP:
3937 case VPPCOM_PROTO_UDP:
3940 case VPPCOM_PROTO_TLS:
3943 case VPPCOM_PROTO_QUIC:
3947 proto_str = "UNKNOWN";
3954 vppcom_retval_str (int retval)
3965 st = "VPPCOM_EAGAIN";
3969 st = "VPPCOM_EFAULT";
3973 st = "VPPCOM_ENOMEM";
3977 st = "VPPCOM_EINVAL";
3981 st = "VPPCOM_EBADFD";
3984 case VPPCOM_EAFNOSUPPORT:
3985 st = "VPPCOM_EAFNOSUPPORT";
3988 case VPPCOM_ECONNABORTED:
3989 st = "VPPCOM_ECONNABORTED";
3992 case VPPCOM_ECONNRESET:
3993 st = "VPPCOM_ECONNRESET";
3996 case VPPCOM_ENOTCONN:
3997 st = "VPPCOM_ENOTCONN";
4000 case VPPCOM_ECONNREFUSED:
4001 st = "VPPCOM_ECONNREFUSED";
4004 case VPPCOM_ETIMEDOUT:
4005 st = "VPPCOM_ETIMEDOUT";
4009 st = "UNKNOWN_STATE";
4017 * fd.io coding-style-patch-verification: ON
4020 * eval: (c-set-style "gnu")