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 mp->ckpair_index = s->ckpair_index;
187 if (s->flags & VCL_SESSION_F_CONNECTED)
188 mp->flags = TRANSPORT_CFG_F_CONNECTED;
189 app_send_ctrl_evt_to_vpp (mq, app_evt);
193 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
195 app_session_evt_t _app_evt, *app_evt = &_app_evt;
196 session_connect_msg_t *mp;
199 mq = vcl_worker_ctrl_mq (wrk);
200 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
201 mp = (session_connect_msg_t *) app_evt->evt->data;
202 memset (mp, 0, sizeof (*mp));
203 mp->client_index = wrk->api_client_handle;
204 mp->context = s->session_index;
205 mp->wrk_index = wrk->vpp_wrk_index;
206 mp->is_ip4 = s->transport.is_ip4;
207 mp->parent_handle = s->parent_handle;
208 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
209 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
210 mp->port = s->transport.rmt_port;
211 mp->lcl_port = s->transport.lcl_port;
212 mp->proto = s->session_type;
213 mp->ckpair_index = s->ckpair_index;
215 if (s->flags & VCL_SESSION_F_CONNECTED)
216 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
217 app_send_ctrl_evt_to_vpp (mq, app_evt);
221 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
223 app_session_evt_t _app_evt, *app_evt = &_app_evt;
224 session_unlisten_msg_t *mp;
227 mq = vcl_worker_ctrl_mq (wrk);
228 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
229 mp = (session_unlisten_msg_t *) app_evt->evt->data;
230 memset (mp, 0, sizeof (*mp));
231 mp->client_index = wrk->api_client_handle;
232 mp->wrk_index = wrk->vpp_wrk_index;
233 mp->handle = s->vpp_handle;
234 mp->context = wrk->wrk_index;
235 app_send_ctrl_evt_to_vpp (mq, app_evt);
239 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
241 app_session_evt_t _app_evt, *app_evt = &_app_evt;
242 session_disconnect_msg_t *mp;
245 /* Send to thread that owns the session */
247 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
248 mp = (session_disconnect_msg_t *) app_evt->evt->data;
249 memset (mp, 0, sizeof (*mp));
250 mp->client_index = wrk->api_client_handle;
251 mp->handle = s->vpp_handle;
252 app_send_ctrl_evt_to_vpp (mq, app_evt);
256 vcl_send_app_detach (vcl_worker_t * wrk)
258 app_session_evt_t _app_evt, *app_evt = &_app_evt;
259 session_app_detach_msg_t *mp;
262 mq = vcl_worker_ctrl_mq (wrk);
263 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
264 mp = (session_app_detach_msg_t *) app_evt->evt->data;
265 memset (mp, 0, sizeof (*mp));
266 mp->client_index = wrk->api_client_handle;
267 app_send_ctrl_evt_to_vpp (mq, app_evt);
271 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
272 session_handle_t handle, int retval)
274 app_session_evt_t _app_evt, *app_evt = &_app_evt;
275 session_accepted_reply_msg_t *rmp;
276 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
277 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
278 rmp->handle = handle;
279 rmp->context = context;
280 rmp->retval = retval;
281 app_send_ctrl_evt_to_vpp (mq, app_evt);
285 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
288 app_session_evt_t _app_evt, *app_evt = &_app_evt;
289 session_disconnected_reply_msg_t *rmp;
290 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
291 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
292 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
293 rmp->handle = s->vpp_handle;
294 rmp->context = wrk->api_client_handle;
295 rmp->retval = retval;
296 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
300 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
303 app_session_evt_t _app_evt, *app_evt = &_app_evt;
304 session_reset_reply_msg_t *rmp;
305 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
306 SESSION_CTRL_EVT_RESET_REPLY);
307 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
308 rmp->handle = s->vpp_handle;
309 rmp->context = wrk->api_client_handle;
310 rmp->retval = retval;
311 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
315 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
318 app_session_evt_t _app_evt, *app_evt = &_app_evt;
319 session_worker_update_msg_t *mp;
321 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
322 SESSION_CTRL_EVT_WORKER_UPDATE);
323 mp = (session_worker_update_msg_t *) app_evt->evt->data;
324 mp->client_index = wrk->api_client_handle;
325 mp->handle = s->vpp_handle;
326 mp->req_wrk_index = wrk->vpp_wrk_index;
327 mp->wrk_index = wrk_index;
328 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
332 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
334 app_session_evt_t _app_evt, *app_evt = &_app_evt;
335 session_app_wrk_rpc_msg_t *mp;
336 vcl_worker_t *dst_wrk, *wrk;
340 if (data_len > sizeof (mp->data))
343 clib_spinlock_lock (&vcm->workers_lock);
345 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
349 wrk = vcl_worker_get_current ();
350 mq = vcl_worker_ctrl_mq (wrk);
351 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
352 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
353 mp->client_index = wrk->api_client_handle;
354 mp->wrk_index = dst_wrk->vpp_wrk_index;
355 clib_memcpy (mp->data, data, data_len);
356 app_send_ctrl_evt_to_vpp (mq, app_evt);
360 clib_spinlock_unlock (&vcm->workers_lock);
365 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
368 vcl_session_t *session, *listen_session;
371 session = vcl_session_alloc (wrk);
373 listen_session = vcl_session_get (wrk, ls_index);
374 if (listen_session->vpp_handle != mp->listener_handle)
376 VDBG (0, "ERROR: listener handle %lu does not match session %u",
377 mp->listener_handle, ls_index);
381 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
383 mp->vpp_event_queue_address, 0, session))
385 VDBG (0, "failed to attach fifos for %u", session->session_index);
389 session->vpp_handle = mp->handle;
390 session->session_state = VCL_STATE_READY;
391 session->transport.rmt_port = mp->rmt.port;
392 session->transport.is_ip4 = mp->rmt.is_ip4;
393 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
394 sizeof (ip46_address_t));
396 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
397 session->transport.lcl_port = listen_session->transport.lcl_port;
398 session->transport.lcl_ip = listen_session->transport.lcl_ip;
399 session->session_type = listen_session->session_type;
400 session->is_dgram = vcl_proto_is_dgram (session->session_type);
401 session->listener_index = listen_session->session_index;
402 listen_session->n_accepted_sessions++;
404 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
405 " port %d queue %p!", session->session_index, mp->handle,
406 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
407 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
408 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
409 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
411 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
412 session->vpp_handle, 0);
414 return session->session_index;
417 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
418 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
419 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
420 VNET_API_ERROR_INVALID_ARGUMENT);
421 vcl_session_free (wrk, session);
422 return VCL_INVALID_SESSION_INDEX;
426 vcl_session_connected_handler (vcl_worker_t * wrk,
427 session_connected_msg_t * mp)
429 vcl_session_t *session = 0;
432 session_index = mp->context;
433 session = vcl_session_get (wrk, session_index);
436 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
437 mp->handle, session_index);
438 return VCL_INVALID_SESSION_INDEX;
442 VDBG (0, "ERROR: session index %u: connect failed! %U",
443 session_index, format_session_error, mp->retval);
444 session->session_state = VCL_STATE_DETACHED;
445 session->vpp_handle = mp->handle;
446 return session_index;
449 session->vpp_handle = mp->handle;
451 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
453 mp->vpp_event_queue_address, 0, session))
455 VDBG (0, "failed to attach fifos for %u", session->session_index);
456 session->session_state = VCL_STATE_DETACHED;
457 vcl_send_session_disconnect (wrk, session);
458 return session_index;
463 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
464 mp->ct_tx_fifo, (uword) ~0, 1, session))
466 VDBG (0, "failed to attach ct fifos for %u", session->session_index);
467 session->session_state = VCL_STATE_DETACHED;
468 vcl_send_session_disconnect (wrk, session);
469 return session_index;
473 session->transport.is_ip4 = mp->lcl.is_ip4;
474 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
475 sizeof (session->transport.lcl_ip));
476 session->transport.lcl_port = mp->lcl.port;
478 /* Application closed session before connect reply */
479 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
480 && session->session_state == VCL_STATE_CLOSED)
481 vcl_send_session_disconnect (wrk, session);
483 session->session_state = VCL_STATE_READY;
485 /* Add it to lookup table */
486 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
488 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
489 " refcnt %d", session_index, mp->handle, session->rx_fifo,
490 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
492 return session_index;
496 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
498 vcl_session_msg_t *accepted_msg;
501 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
503 accepted_msg = &session->accept_evts_fifo[i];
504 if (accepted_msg->accepted_msg.handle == handle)
506 accepted_msg->flags |= flags;
514 vcl_session_reset_handler (vcl_worker_t * wrk,
515 session_reset_msg_t * reset_msg)
517 vcl_session_t *session;
520 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
521 session = vcl_session_get (wrk, sid);
524 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
525 return VCL_INVALID_SESSION_INDEX;
528 /* Caught a reset before actually accepting the session */
529 if (session->session_state == VCL_STATE_LISTEN)
532 if (!vcl_flag_accepted_session (session, reset_msg->handle,
533 VCL_ACCEPTED_F_RESET))
534 VDBG (0, "session was not accepted!");
535 return VCL_INVALID_SESSION_INDEX;
538 if (session->session_state != VCL_STATE_CLOSED)
539 session->session_state = VCL_STATE_DISCONNECT;
540 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
545 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
547 vcl_session_t *session;
548 u32 sid = mp->context;
550 session = vcl_session_get (wrk, sid);
553 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
554 format_session_error, mp->retval);
557 session->session_state = VCL_STATE_DETACHED;
558 session->vpp_handle = mp->handle;
563 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
565 return VCL_INVALID_SESSION_INDEX;
569 session->vpp_handle = mp->handle;
570 session->transport.is_ip4 = mp->lcl_is_ip4;
571 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
572 sizeof (ip46_address_t));
573 session->transport.lcl_port = mp->lcl_port;
574 vcl_session_table_add_listener (wrk, mp->handle, sid);
575 session->session_state = VCL_STATE_LISTEN;
577 if (vcl_session_is_cl (session))
579 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
580 mp->tx_fifo, mp->vpp_evt_q, 0, session))
582 VDBG (0, "failed to attach fifos for %u", session->session_index);
583 session->session_state = VCL_STATE_DETACHED;
584 return VCL_INVALID_SESSION_INDEX;
588 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
593 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
595 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
598 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
601 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
604 if (s->session_state != VCL_STATE_DISCONNECT)
606 /* Connected udp listener */
607 if (s->session_type == VPPCOM_PROTO_UDP
608 && s->session_state == VCL_STATE_CLOSED)
611 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
616 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
617 s->session_index, mp->handle, format_session_error, mp->retval);
619 if (mp->context != wrk->wrk_index)
620 VDBG (0, "wrong context");
622 vcl_session_table_del_vpp_handle (wrk, mp->handle);
623 vcl_session_free (wrk, s);
627 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
629 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
633 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
636 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
640 fs_index = vcl_segment_table_lookup (mp->segment_handle);
641 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
643 VDBG (0, "segment for session %u is not mounted!", s->session_index);
644 s->session_state = VCL_STATE_DETACHED;
648 s->vpp_handle = mp->new_handle;
650 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
651 mp->vpp_thread_index, &s->vpp_evt_q);
653 vcl_session_table_del_vpp_handle (wrk, mp->handle);
654 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
656 /* Generate new tx event if we have outstanding data */
657 if (svm_fifo_has_event (s->tx_fifo))
658 app_send_io_evt_to_vpp (s->vpp_evt_q,
659 s->tx_fifo->shr->master_session_index,
660 SESSION_IO_EVT_TX, SVM_Q_WAIT);
662 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
663 mp->vpp_thread_index, mp->new_handle);
666 static vcl_session_t *
667 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
669 vcl_session_msg_t *vcl_msg;
670 vcl_session_t *session;
672 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
673 if (PREDICT_FALSE (session != 0))
674 VWRN ("session overlap handle %lu state %u!", msg->handle,
675 session->session_state);
677 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
680 VERR ("couldn't find listen session: listener handle %llx",
681 msg->listener_handle);
685 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
687 vcl_msg->accepted_msg = *msg;
688 /* Session handle points to listener until fully accepted by app */
689 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
694 static vcl_session_t *
695 vcl_session_disconnected_handler (vcl_worker_t * wrk,
696 session_disconnected_msg_t * msg)
698 vcl_session_t *session;
700 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
703 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
707 /* Late disconnect notification on a session that has been closed */
708 if (session->session_state == VCL_STATE_CLOSED)
711 /* Caught a disconnect before actually accepting the session */
712 if (session->session_state == VCL_STATE_LISTEN)
714 if (!vcl_flag_accepted_session (session, msg->handle,
715 VCL_ACCEPTED_F_CLOSED))
716 VDBG (0, "session was not accepted!");
720 /* If not already reset change state */
721 if (session->session_state != VCL_STATE_DISCONNECT)
722 session->session_state = VCL_STATE_VPP_CLOSING;
728 vppcom_session_disconnect (u32 session_handle)
730 vcl_worker_t *wrk = vcl_worker_get_current ();
731 vcl_session_t *session, *listen_session;
732 vcl_session_state_t state;
735 session = vcl_session_get_w_handle (wrk, session_handle);
737 return VPPCOM_EBADFD;
739 vpp_handle = session->vpp_handle;
740 state = session->session_state;
742 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
743 vpp_handle, state, vppcom_session_state_str (state));
745 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
747 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
748 return VPPCOM_EBADFD;
751 if (state == VCL_STATE_VPP_CLOSING)
753 vcl_send_session_disconnected_reply (wrk, session, 0);
754 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
755 session->session_index, vpp_handle);
759 /* Session doesn't have an event queue yet. Probably a non-blocking
760 * connect. Wait for the reply */
761 if (PREDICT_FALSE (!session->vpp_evt_q))
764 VDBG (1, "session %u [0x%llx]: sending disconnect...",
765 session->session_index, vpp_handle);
766 vcl_send_session_disconnect (wrk, session);
769 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
771 listen_session = vcl_session_get (wrk, session->listener_index);
772 listen_session->n_accepted_sessions--;
779 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
781 session_cleanup_msg_t *msg;
782 vcl_session_t *session;
784 msg = (session_cleanup_msg_t *) data;
785 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
788 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
792 if (msg->type == SESSION_CLEANUP_TRANSPORT)
794 /* Transport was cleaned up before we confirmed close. Probably the
795 * app is still waiting for some data that cannot be delivered.
796 * Confirm close to make sure everything is cleaned up.
797 * Move to undetermined state to ensure that the session is not
798 * removed before both vpp and the app cleanup.
799 * - If the app closes first, the session is moved to CLOSED state
800 * and the session cleanup notification from vpp removes the
802 * - If vpp cleans up the session first, the session is moved to
803 * DETACHED state lower and subsequently the close from the app
806 if (session->session_state == VCL_STATE_VPP_CLOSING)
808 vppcom_session_disconnect (vcl_session_handle (session));
809 session->session_state = VCL_STATE_UPDATED;
811 else if (session->session_state == VCL_STATE_DISCONNECT)
813 vcl_send_session_reset_reply (wrk, session, 0);
814 session->session_state = VCL_STATE_UPDATED;
819 vcl_session_table_del_vpp_handle (wrk, msg->handle);
820 /* Should not happen. App did not close the connection so don't free it. */
821 if (session->session_state != VCL_STATE_CLOSED)
823 VDBG (0, "app did not close session %d", session->session_index);
824 session->session_state = VCL_STATE_DETACHED;
825 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
828 vcl_session_free (wrk, session);
832 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
834 session_req_worker_update_msg_t *msg;
837 msg = (session_req_worker_update_msg_t *) data;
838 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
842 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
846 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
848 session_worker_update_reply_msg_t *msg;
851 msg = (session_worker_update_reply_msg_t *) data;
852 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
855 VDBG (0, "unknown handle 0x%llx", msg->handle);
861 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
862 msg->tx_fifo, (uword) ~0, 0, s))
864 VDBG (0, "failed to attach fifos for %u", s->session_index);
868 s->session_state = VCL_STATE_UPDATED;
870 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
871 s->vpp_handle, wrk->wrk_index);
875 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
878 if (vcm->cfg.vpp_app_socket_api)
879 return vcl_sapi_recv_fds (wrk, fds, n_fds);
881 return vcl_bapi_recv_fds (wrk, fds, n_fds);
885 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
887 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
888 session_app_add_segment_msg_t *msg;
892 msg = (session_app_add_segment_msg_t *) data;
896 vcl_api_recv_fd (wrk, &fd, 1);
897 seg_type = SSVM_SEGMENT_MEMFD;
900 segment_handle = msg->segment_handle;
901 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
903 clib_warning ("invalid segment handle");
907 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
910 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
914 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
919 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
921 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
922 vcl_segment_detach (msg->segment_handle);
923 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
927 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
929 if (!vcm->wrk_rpc_fn)
932 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
936 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
938 session_disconnected_msg_t *disconnected_msg;
939 session_connected_msg_t *connected_msg;
940 session_reset_msg_t *reset_msg;
941 session_event_t *ecpy;
945 switch (e->event_type)
947 case SESSION_IO_EVT_RX:
948 case SESSION_IO_EVT_TX:
949 s = vcl_session_get (wrk, e->session_index);
950 if (!s || !vcl_session_is_open (s))
952 vec_add1 (wrk->unhandled_evts_vector, *e);
954 case SESSION_CTRL_EVT_BOUND:
955 /* We can only wait for only one listen so not postponed */
956 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
958 case SESSION_CTRL_EVT_ACCEPTED:
959 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
960 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
962 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
965 ecpy->session_index = s->session_index;
968 case SESSION_CTRL_EVT_CONNECTED:
969 connected_msg = (session_connected_msg_t *) e->data;
970 sid = vcl_session_connected_handler (wrk, connected_msg);
971 if (!(s = vcl_session_get (wrk, sid)))
973 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
975 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
978 ecpy->session_index = s->session_index;
981 case SESSION_CTRL_EVT_DISCONNECTED:
982 disconnected_msg = (session_disconnected_msg_t *) e->data;
983 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
985 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
987 vec_add1 (wrk->unhandled_evts_vector, *e);
990 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
992 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
995 case SESSION_CTRL_EVT_RESET:
996 reset_msg = (session_reset_msg_t *) e->data;
997 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
999 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1001 vec_add1 (wrk->unhandled_evts_vector, *e);
1004 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1006 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1007 vcl_session_unlisten_reply_handler (wrk, e->data);
1009 case SESSION_CTRL_EVT_MIGRATED:
1010 vcl_session_migrated_handler (wrk, e->data);
1012 case SESSION_CTRL_EVT_CLEANUP:
1013 vcl_session_cleanup_handler (wrk, e->data);
1015 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1016 vcl_session_req_worker_update_handler (wrk, e->data);
1018 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1019 vcl_session_worker_update_reply_handler (wrk, e->data);
1021 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1022 vcl_session_app_add_segment_handler (wrk, e->data);
1024 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1025 vcl_session_app_del_segment_handler (wrk, e->data);
1027 case SESSION_CTRL_EVT_APP_WRK_RPC:
1028 vcl_worker_rpc_handler (wrk, e->data);
1031 clib_warning ("unhandled %u", e->event_type);
1037 vppcom_wait_for_session_state_change (u32 session_index,
1038 vcl_session_state_t state,
1041 vcl_worker_t *wrk = vcl_worker_get_current ();
1042 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1043 vcl_session_t *volatile session;
1044 svm_msg_q_msg_t msg;
1049 session = vcl_session_get (wrk, session_index);
1050 if (PREDICT_FALSE (!session))
1052 return VPPCOM_EBADFD;
1054 if (session->session_state == state)
1058 if (session->session_state == VCL_STATE_DETACHED)
1060 return VPPCOM_ECONNREFUSED;
1063 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1068 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1069 vcl_handle_mq_event (wrk, e);
1070 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1072 while (clib_time_now (&wrk->clib_time) < timeout);
1074 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1075 vppcom_session_state_str (state));
1076 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1078 return VPPCOM_ETIMEDOUT;
1082 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1084 vcl_session_state_t state;
1088 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1091 vec_foreach (sip, wrk->pending_session_wrk_updates)
1093 s = vcl_session_get (wrk, *sip);
1094 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1095 state = s->session_state;
1096 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1098 s->session_state = state;
1100 vec_reset_length (wrk->pending_session_wrk_updates);
1104 vcl_flush_mq_events (void)
1106 vcl_worker_t *wrk = vcl_worker_get_current ();
1107 svm_msg_q_msg_t *msg;
1112 mq = wrk->app_event_queue;
1113 svm_msg_q_lock (mq);
1114 vcl_mq_dequeue_batch (wrk, mq, ~0);
1115 svm_msg_q_unlock (mq);
1117 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1119 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1120 e = svm_msg_q_msg_data (mq, msg);
1121 vcl_handle_mq_event (wrk, e);
1122 svm_msg_q_free_msg (mq, msg);
1124 vec_reset_length (wrk->mq_msg_vector);
1125 vcl_handle_pending_wrk_updates (wrk);
1129 vppcom_session_unbind (u32 session_handle)
1131 vcl_worker_t *wrk = vcl_worker_get_current ();
1132 session_accepted_msg_t *accepted_msg;
1133 vcl_session_t *session = 0;
1134 vcl_session_msg_t *evt;
1136 session = vcl_session_get_w_handle (wrk, session_handle);
1138 return VPPCOM_EBADFD;
1140 /* Flush pending accept events, if any */
1141 while (clib_fifo_elts (session->accept_evts_fifo))
1143 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1144 accepted_msg = &evt->accepted_msg;
1145 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1146 vcl_send_session_accepted_reply (session->vpp_evt_q,
1147 accepted_msg->context,
1148 accepted_msg->handle, -1);
1150 clib_fifo_free (session->accept_evts_fifo);
1152 vcl_send_session_unlisten (wrk, session);
1154 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1155 session->vpp_handle);
1156 vcl_evt (VCL_EVT_UNBIND, session);
1158 session->vpp_handle = ~0;
1159 session->session_state = VCL_STATE_DISCONNECT;
1167 * Notify vpp of the disconnect and mark the worker as free. If we're the
1168 * last worker, do a full cleanup otherwise, since we're probably a forked
1169 * child, avoid syscalls as much as possible. We might've lost privileges.
1172 vppcom_app_exit (void)
1174 if (!pool_elts (vcm->workers))
1176 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1177 vcl_set_worker_index (~0);
1178 vcl_elog_stop (vcm);
1182 vcl_api_attach (void)
1184 if (vcm->cfg.vpp_app_socket_api)
1185 return vcl_sapi_attach ();
1187 return vcl_bapi_attach ();
1191 vcl_api_detach (vcl_worker_t * wrk)
1193 vcl_send_app_detach (wrk);
1195 if (vcm->cfg.vpp_app_socket_api)
1196 return vcl_sapi_detach (wrk);
1198 return vcl_bapi_disconnect_from_vpp ();
1202 * VPPCOM Public API functions
1205 vppcom_app_create (const char *app_name)
1207 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1212 VDBG (1, "already initialized");
1213 return VPPCOM_EEXIST;
1217 vppcom_cfg (&vcm->cfg);
1218 vcl_cfg = &vcm->cfg;
1220 vcm->main_cpu = pthread_self ();
1221 vcm->main_pid = getpid ();
1222 vcm->app_name = format (0, "%s", app_name);
1223 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1224 20 /* timeout in secs */ );
1225 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1226 clib_spinlock_init (&vcm->workers_lock);
1227 clib_rwlock_init (&vcm->segment_table_lock);
1228 atexit (vppcom_app_exit);
1229 vcl_elog_init (vcm);
1231 /* Allocate default worker */
1232 vcl_worker_alloc_and_init ();
1234 if ((rv = vcl_api_attach ()))
1237 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1238 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1244 vppcom_app_destroy (void)
1246 vcl_worker_t *wrk, *current_wrk;
1249 if (!pool_elts (vcm->workers))
1252 vcl_evt (VCL_EVT_DETACH, vcm);
1254 current_wrk = vcl_worker_get_current ();
1257 pool_foreach (wrk, vcm->workers) {
1258 if (current_wrk != wrk)
1259 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1263 vcl_api_detach (current_wrk);
1264 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1266 vcl_elog_stop (vcm);
1269 * Free the heap and fix vcm
1271 heap = clib_mem_get_heap ();
1272 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1274 vcm = &_vppcom_main;
1279 vppcom_session_create (u8 proto, u8 is_nonblocking)
1281 vcl_worker_t *wrk = vcl_worker_get_current ();
1282 vcl_session_t *session;
1284 session = vcl_session_alloc (wrk);
1286 session->session_type = proto;
1287 session->session_state = VCL_STATE_CLOSED;
1288 session->vpp_handle = ~0;
1289 session->ckpair_index = ~0;
1290 session->is_dgram = vcl_proto_is_dgram (proto);
1293 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1295 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1296 is_nonblocking, session_index);
1298 VDBG (0, "created session %u", session->session_index);
1300 return vcl_session_handle (session);
1304 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1305 vcl_session_handle_t sh, u8 do_disconnect)
1309 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1311 if (s->flags & VCL_SESSION_F_IS_VEP)
1313 u32 next_sh = s->vep.next_sh;
1314 while (next_sh != ~0)
1316 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1317 if (PREDICT_FALSE (rv < 0))
1318 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1319 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1320 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1321 next_sh = s->vep.next_sh;
1326 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1328 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1330 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1331 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1332 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1337 VDBG (1, "session %u [0x%llx] disconnect skipped",
1338 s->session_index, s->vpp_handle);
1342 if (s->session_state == VCL_STATE_LISTEN)
1344 rv = vppcom_session_unbind (sh);
1345 if (PREDICT_FALSE (rv < 0))
1346 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1347 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1348 vppcom_retval_str (rv));
1351 else if (vcl_session_is_ready (s)
1352 || (vcl_session_is_connectable_listener (wrk, s)))
1354 rv = vppcom_session_disconnect (sh);
1355 if (PREDICT_FALSE (rv < 0))
1356 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1357 " rv %d (%s)", s->session_index, s->vpp_handle,
1358 rv, vppcom_retval_str (rv));
1360 else if (s->session_state == VCL_STATE_DISCONNECT)
1362 vcl_send_session_reset_reply (wrk, s, 0);
1364 else if (s->session_state == VCL_STATE_DETACHED)
1366 /* Should not happen. VPP cleaned up before app confirmed close */
1367 VDBG (0, "vpp freed session %d before close", s->session_index);
1371 s->session_state = VCL_STATE_CLOSED;
1373 /* Session is removed only after vpp confirms the disconnect */
1377 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1379 vcl_session_free (wrk, s);
1380 vcl_evt (VCL_EVT_CLOSE, s, rv);
1386 vppcom_session_close (uint32_t session_handle)
1388 vcl_worker_t *wrk = vcl_worker_get_current ();
1389 vcl_session_t *session;
1391 session = vcl_session_get_w_handle (wrk, session_handle);
1393 return VPPCOM_EBADFD;
1394 return vcl_session_cleanup (wrk, session, session_handle,
1395 1 /* do_disconnect */ );
1399 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1401 vcl_worker_t *wrk = vcl_worker_get_current ();
1402 vcl_session_t *session = 0;
1405 return VPPCOM_EINVAL;
1407 session = vcl_session_get_w_handle (wrk, session_handle);
1409 return VPPCOM_EBADFD;
1411 if (session->flags & VCL_SESSION_F_IS_VEP)
1413 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1414 session->session_index);
1415 return VPPCOM_EBADFD;
1418 session->transport.is_ip4 = ep->is_ip4;
1420 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1421 sizeof (ip4_address_t));
1423 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1424 sizeof (ip6_address_t));
1425 session->transport.lcl_port = ep->port;
1427 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1428 "proto %s", session->session_index, session_handle,
1429 session->transport.is_ip4 ? "IPv4" : "IPv6",
1430 format_ip46_address, &session->transport.lcl_ip,
1431 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1432 clib_net_to_host_u16 (session->transport.lcl_port),
1433 vppcom_proto_str (session->session_type));
1434 vcl_evt (VCL_EVT_BIND, session);
1436 if (session->session_type == VPPCOM_PROTO_UDP)
1437 vppcom_session_listen (session_handle, 10);
1443 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1445 vcl_worker_t *wrk = vcl_worker_get_current ();
1446 vcl_session_t *listen_session = 0;
1447 u64 listen_vpp_handle;
1450 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1451 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1452 return VPPCOM_EBADFD;
1454 if (q_len == 0 || q_len == ~0)
1455 q_len = vcm->cfg.listen_queue_size;
1457 listen_vpp_handle = listen_session->vpp_handle;
1458 if (listen_session->session_state == VCL_STATE_LISTEN)
1460 VDBG (0, "session %u [0x%llx]: already in listen state!",
1461 listen_sh, listen_vpp_handle);
1465 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1468 * Send listen request to vpp and wait for reply
1470 vcl_send_session_listen (wrk, listen_session);
1471 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1473 vcm->cfg.session_timeout);
1475 if (PREDICT_FALSE (rv))
1477 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1478 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1479 listen_sh, listen_session->vpp_handle, rv,
1480 vppcom_retval_str (rv));
1488 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1490 if (ls->flags & VCL_SESSION_F_IS_VEP)
1492 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1494 return VPPCOM_EBADFD;
1497 if ((ls->session_state != VCL_STATE_LISTEN)
1498 && (!vcl_session_is_connectable_listener (wrk, ls)))
1500 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1501 " (%s)", ls->vpp_handle, ls->session_state,
1502 vppcom_session_state_str (ls->session_state));
1503 return VPPCOM_EBADFD;
1509 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1511 if (!strcmp (proto_str, "TCP"))
1512 *proto = VPPCOM_PROTO_TCP;
1513 else if (!strcmp (proto_str, "tcp"))
1514 *proto = VPPCOM_PROTO_TCP;
1515 else if (!strcmp (proto_str, "UDP"))
1516 *proto = VPPCOM_PROTO_UDP;
1517 else if (!strcmp (proto_str, "udp"))
1518 *proto = VPPCOM_PROTO_UDP;
1519 else if (!strcmp (proto_str, "TLS"))
1520 *proto = VPPCOM_PROTO_TLS;
1521 else if (!strcmp (proto_str, "tls"))
1522 *proto = VPPCOM_PROTO_TLS;
1523 else if (!strcmp (proto_str, "QUIC"))
1524 *proto = VPPCOM_PROTO_QUIC;
1525 else if (!strcmp (proto_str, "quic"))
1526 *proto = VPPCOM_PROTO_QUIC;
1533 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1536 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1537 vcl_worker_t *wrk = vcl_worker_get_current ();
1538 session_accepted_msg_t accepted_msg;
1539 vcl_session_t *listen_session = 0;
1540 vcl_session_t *client_session = 0;
1541 vcl_session_msg_t *evt;
1542 svm_msg_q_msg_t msg;
1547 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1548 if (!listen_session)
1549 return VPPCOM_EBADFD;
1551 listen_session_index = listen_session->session_index;
1552 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1555 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1557 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1558 accept_flags = evt->flags;
1559 accepted_msg = evt->accepted_msg;
1563 is_nonblocking = vcl_session_has_attr (listen_session,
1564 VCL_SESS_ATTR_NONBLOCK);
1567 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1568 return VPPCOM_EAGAIN;
1570 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1571 return VPPCOM_EAGAIN;
1573 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1574 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1576 vcl_handle_mq_event (wrk, e);
1577 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1580 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1581 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1587 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1588 listen_session_index);
1589 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1590 return VPPCOM_ECONNABORTED;
1592 listen_session = vcl_session_get (wrk, listen_session_index);
1593 client_session = vcl_session_get (wrk, client_session_index);
1595 if (flags & O_NONBLOCK)
1596 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1598 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1599 " flags %d, is_nonblocking %u", listen_session->session_index,
1600 listen_session->vpp_handle, client_session_index,
1601 client_session->vpp_handle, flags,
1602 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1606 ep->is_ip4 = client_session->transport.is_ip4;
1607 ep->port = client_session->transport.rmt_port;
1608 if (client_session->transport.is_ip4)
1609 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1610 sizeof (ip4_address_t));
1612 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1613 sizeof (ip6_address_t));
1616 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1617 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1618 client_session_index, client_session->vpp_handle,
1619 format_ip46_address, &client_session->transport.rmt_ip,
1620 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1621 clib_net_to_host_u16 (client_session->transport.rmt_port),
1622 format_ip46_address, &client_session->transport.lcl_ip,
1623 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1624 clib_net_to_host_u16 (client_session->transport.lcl_port));
1625 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1626 client_session_index);
1629 * Session might have been closed already
1633 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1634 client_session->session_state = VCL_STATE_VPP_CLOSING;
1635 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1636 client_session->session_state = VCL_STATE_DISCONNECT;
1638 return vcl_session_handle (client_session);
1642 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1644 vcl_worker_t *wrk = vcl_worker_get_current ();
1645 vcl_session_t *session = 0;
1649 session = vcl_session_get_w_handle (wrk, session_handle);
1651 return VPPCOM_EBADFD;
1652 session_index = session->session_index;
1654 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1656 VDBG (0, "ERROR: cannot connect epoll session %u!",
1657 session->session_index);
1658 return VPPCOM_EBADFD;
1661 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1663 VDBG (0, "session handle %u [0x%llx]: session already "
1664 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1665 session_handle, session->vpp_handle,
1666 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1667 &session->transport.rmt_ip, session->transport.is_ip4 ?
1668 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1669 clib_net_to_host_u16 (session->transport.rmt_port),
1670 vppcom_proto_str (session->session_type), session->session_state,
1671 vppcom_session_state_str (session->session_state));
1675 /* Attempt to connect a connectionless listener */
1676 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1678 if (session->session_type != VPPCOM_PROTO_UDP)
1679 return VPPCOM_EINVAL;
1680 vcl_send_session_unlisten (wrk, session);
1681 session->session_state = VCL_STATE_CLOSED;
1684 session->transport.is_ip4 = server_ep->is_ip4;
1685 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1686 session->transport.rmt_port = server_ep->port;
1687 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1688 session->flags |= VCL_SESSION_F_CONNECTED;
1690 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1691 "port %d proto %s", session_handle,
1692 vppcom_session_state_str (session->session_state),
1693 session->transport.is_ip4 ? "IPv4" : "IPv6",
1694 format_ip46_address,
1695 &session->transport.rmt_ip, session->transport.is_ip4 ?
1696 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1697 clib_net_to_host_u16 (session->transport.rmt_port),
1698 vppcom_proto_str (session->session_type));
1700 vcl_send_session_connect (wrk, session);
1702 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1704 /* State set to STATE_UPDATED to ensure the session is not assumed
1705 * to be ready and to also allow the app to close it prior to vpp's
1706 * connected reply. */
1707 session->session_state = VCL_STATE_UPDATED;
1708 return VPPCOM_EINPROGRESS;
1712 * Wait for reply from vpp if blocking
1714 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1715 vcm->cfg.session_timeout);
1717 session = vcl_session_get (wrk, session_index);
1718 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1719 session->vpp_handle, rv ? "failed" : "succeeded");
1725 vppcom_session_stream_connect (uint32_t session_handle,
1726 uint32_t parent_session_handle)
1728 vcl_worker_t *wrk = vcl_worker_get_current ();
1729 vcl_session_t *session, *parent_session;
1730 u32 session_index, parent_session_index;
1733 session = vcl_session_get_w_handle (wrk, session_handle);
1735 return VPPCOM_EBADFD;
1736 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1737 if (!parent_session)
1738 return VPPCOM_EBADFD;
1740 session_index = session->session_index;
1741 parent_session_index = parent_session->session_index;
1742 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1744 VDBG (0, "ERROR: cannot connect epoll session %u!",
1745 session->session_index);
1746 return VPPCOM_EBADFD;
1749 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1751 VDBG (0, "session handle %u [0x%llx]: session already "
1752 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1753 session_handle, session->vpp_handle,
1754 parent_session_handle, parent_session->vpp_handle,
1755 vppcom_proto_str (session->session_type), session->session_state,
1756 vppcom_session_state_str (session->session_state));
1760 /* Connect to quic session specifics */
1761 session->transport.is_ip4 = parent_session->transport.is_ip4;
1762 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1763 session->transport.rmt_port = 0;
1764 session->parent_handle = parent_session->vpp_handle;
1766 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1767 session_handle, parent_session_handle, parent_session->vpp_handle);
1770 * Send connect request and wait for reply from vpp
1772 vcl_send_session_connect (wrk, session);
1773 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1774 vcm->cfg.session_timeout);
1776 session->listener_index = parent_session_index;
1777 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1779 parent_session->n_accepted_sessions++;
1781 session = vcl_session_get (wrk, session_index);
1782 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1783 session->vpp_handle, rv ? "failed" : "succeeded");
1789 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1791 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1795 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1798 vcl_worker_t *wrk = vcl_worker_get_current ();
1799 int rv, n_read = 0, is_nonblocking;
1800 vcl_session_t *s = 0;
1801 svm_fifo_t *rx_fifo;
1802 svm_msg_q_msg_t msg;
1807 if (PREDICT_FALSE (!buf))
1808 return VPPCOM_EINVAL;
1810 s = vcl_session_get_w_handle (wrk, session_handle);
1811 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1812 return VPPCOM_EBADFD;
1814 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1816 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1817 s->session_index, s->vpp_handle, s->session_state,
1818 vppcom_session_state_str (s->session_state));
1819 return vcl_session_closed_error (s);
1822 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1823 is_ct = vcl_session_is_ct (s);
1824 mq = wrk->app_event_queue;
1825 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1826 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1828 if (svm_fifo_is_empty_cons (rx_fifo))
1832 if (vcl_session_is_closing (s))
1833 return vcl_session_closing_error (s);
1835 svm_fifo_unset_event (s->rx_fifo);
1836 svm_fifo_unset_event (rx_fifo);
1837 return VPPCOM_EWOULDBLOCK;
1839 while (svm_fifo_is_empty_cons (rx_fifo))
1841 if (vcl_session_is_closing (s))
1842 return vcl_session_closing_error (s);
1845 svm_fifo_unset_event (s->rx_fifo);
1846 svm_fifo_unset_event (rx_fifo);
1847 svm_msg_q_lock (mq);
1848 if (svm_msg_q_is_empty (mq))
1849 svm_msg_q_wait (mq);
1851 svm_msg_q_sub_w_lock (mq, &msg);
1852 e = svm_msg_q_msg_data (mq, &msg);
1853 svm_msg_q_unlock (mq);
1854 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1855 vcl_handle_mq_event (wrk, e);
1856 svm_msg_q_free_msg (mq, &msg);
1863 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1865 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1870 if (svm_fifo_is_empty_cons (rx_fifo))
1873 svm_fifo_unset_event (s->rx_fifo);
1874 svm_fifo_unset_event (rx_fifo);
1875 if (!svm_fifo_is_empty_cons (rx_fifo)
1876 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1878 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1879 e->event_type = SESSION_IO_EVT_RX;
1880 e->session_index = s->session_index;
1883 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1885 /* More data enqueued while reading. Try to drain it
1886 * or fill the buffer. Avoid doing that for dgrams */
1892 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1894 svm_fifo_clear_deq_ntf (rx_fifo);
1895 app_send_io_evt_to_vpp (s->vpp_evt_q,
1896 s->rx_fifo->shr->master_session_index,
1897 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1900 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1901 s->vpp_handle, n_read, rx_fifo);
1907 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1909 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1913 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1915 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1919 vppcom_session_read_segments (uint32_t session_handle,
1920 vppcom_data_segment_t * ds, uint32_t n_segments,
1923 vcl_worker_t *wrk = vcl_worker_get_current ();
1924 int n_read = 0, is_nonblocking;
1925 vcl_session_t *s = 0;
1926 svm_fifo_t *rx_fifo;
1927 svm_msg_q_msg_t msg;
1932 s = vcl_session_get_w_handle (wrk, session_handle);
1933 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1934 return VPPCOM_EBADFD;
1936 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1937 return vcl_session_closed_error (s);
1939 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1940 is_ct = vcl_session_is_ct (s);
1941 mq = wrk->app_event_queue;
1942 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1943 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1945 if (svm_fifo_is_empty_cons (rx_fifo))
1950 svm_fifo_unset_event (s->rx_fifo);
1951 svm_fifo_unset_event (rx_fifo);
1952 return VPPCOM_EWOULDBLOCK;
1954 while (svm_fifo_is_empty_cons (rx_fifo))
1956 if (vcl_session_is_closing (s))
1957 return vcl_session_closing_error (s);
1960 svm_fifo_unset_event (s->rx_fifo);
1961 svm_fifo_unset_event (rx_fifo);
1962 svm_msg_q_lock (mq);
1963 if (svm_msg_q_is_empty (mq))
1964 svm_msg_q_wait (mq);
1966 svm_msg_q_sub_w_lock (mq, &msg);
1967 e = svm_msg_q_msg_data (mq, &msg);
1968 svm_msg_q_unlock (mq);
1969 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1970 vcl_handle_mq_event (wrk, e);
1971 svm_msg_q_free_msg (mq, &msg);
1975 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1976 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1978 return VPPCOM_EAGAIN;
1980 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1983 svm_fifo_unset_event (s->rx_fifo);
1984 svm_fifo_unset_event (rx_fifo);
1985 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1986 && svm_fifo_set_event (rx_fifo)
1987 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1990 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1991 e->event_type = SESSION_IO_EVT_RX;
1992 e->session_index = s->session_index;
1996 s->rx_bytes_pending += n_read;
2001 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2003 vcl_worker_t *wrk = vcl_worker_get_current ();
2007 s = vcl_session_get_w_handle (wrk, session_handle);
2008 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2011 is_ct = vcl_session_is_ct (s);
2012 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2014 ASSERT (s->rx_bytes_pending < n_bytes);
2015 s->rx_bytes_pending -= n_bytes;
2019 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2021 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2025 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2027 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2029 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2035 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2036 size_t n, u8 is_flush, u8 is_dgram)
2038 int n_write, is_nonblocking;
2039 session_evt_type_t et;
2040 svm_msg_q_msg_t msg;
2041 svm_fifo_t *tx_fifo;
2046 if (PREDICT_FALSE (!buf || n == 0))
2047 return VPPCOM_EINVAL;
2049 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2051 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2052 " session!", s->session_index, s->vpp_handle);
2053 return VPPCOM_EBADFD;
2056 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2058 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2059 s->session_index, s->vpp_handle, s->session_state,
2060 vppcom_session_state_str (s->session_state));
2061 return vcl_session_closed_error (s);;
2064 is_ct = vcl_session_is_ct (s);
2065 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2066 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2068 mq = wrk->app_event_queue;
2069 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2073 return VPPCOM_EWOULDBLOCK;
2075 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2077 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2078 if (vcl_session_is_closing (s))
2079 return vcl_session_closing_error (s);
2080 svm_msg_q_lock (mq);
2081 if (svm_msg_q_is_empty (mq))
2082 svm_msg_q_wait (mq);
2084 svm_msg_q_sub_w_lock (mq, &msg);
2085 e = svm_msg_q_msg_data (mq, &msg);
2086 svm_msg_q_unlock (mq);
2088 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2089 vcl_handle_mq_event (wrk, e);
2090 svm_msg_q_free_msg (mq, &msg);
2094 et = SESSION_IO_EVT_TX;
2095 if (is_flush && !is_ct)
2096 et = SESSION_IO_EVT_TX_FLUSH;
2099 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2100 s->vpp_evt_q, buf, n, et,
2101 0 /* do_evt */ , SVM_Q_WAIT);
2103 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2104 0 /* do_evt */ , SVM_Q_WAIT);
2106 if (svm_fifo_set_event (s->tx_fifo))
2107 app_send_io_evt_to_vpp (
2108 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2110 /* The underlying fifo segment can run out of memory */
2111 if (PREDICT_FALSE (n_write < 0))
2112 return VPPCOM_EAGAIN;
2114 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2115 s->vpp_handle, n_write);
2121 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2123 vcl_worker_t *wrk = vcl_worker_get_current ();
2126 s = vcl_session_get_w_handle (wrk, session_handle);
2127 if (PREDICT_FALSE (!s))
2128 return VPPCOM_EBADFD;
2130 return vppcom_session_write_inline (wrk, s, buf, n,
2131 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2135 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2137 vcl_worker_t *wrk = vcl_worker_get_current ();
2140 s = vcl_session_get_w_handle (wrk, session_handle);
2141 if (PREDICT_FALSE (!s))
2142 return VPPCOM_EBADFD;
2144 return vppcom_session_write_inline (wrk, s, buf, n,
2145 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2148 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2149 if (PREDICT_FALSE (!_s->rx_fifo)) \
2151 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2153 if (!vcl_session_is_ct (_s)) \
2155 svm_fifo_unset_event (_s->rx_fifo); \
2156 if (svm_fifo_is_empty (_s->rx_fifo)) \
2159 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2161 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2162 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2168 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2169 unsigned long n_bits, unsigned long *read_map,
2170 unsigned long *write_map,
2171 unsigned long *except_map, u32 * bits_set)
2173 session_disconnected_msg_t *disconnected_msg;
2174 session_connected_msg_t *connected_msg;
2178 switch (e->event_type)
2180 case SESSION_IO_EVT_RX:
2181 sid = e->session_index;
2182 s = vcl_session_get (wrk, sid);
2183 if (!s || !vcl_session_is_open (s))
2185 vcl_fifo_rx_evt_valid_or_break (s);
2186 if (sid < n_bits && read_map)
2188 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2192 case SESSION_IO_EVT_TX:
2193 sid = e->session_index;
2194 s = vcl_session_get (wrk, sid);
2195 if (!s || !vcl_session_is_open (s))
2197 if (sid < n_bits && write_map)
2199 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2203 case SESSION_CTRL_EVT_ACCEPTED:
2205 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2207 s = vcl_session_get (wrk, e->session_index);
2210 sid = s->session_index;
2211 if (sid < n_bits && read_map)
2213 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2217 case SESSION_CTRL_EVT_CONNECTED:
2220 connected_msg = (session_connected_msg_t *) e->data;
2221 sid = vcl_session_connected_handler (wrk, connected_msg);
2224 sid = e->session_index;
2225 if (sid == VCL_INVALID_SESSION_INDEX)
2227 if (sid < n_bits && write_map)
2229 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2233 case SESSION_CTRL_EVT_DISCONNECTED:
2234 disconnected_msg = (session_disconnected_msg_t *) e->data;
2235 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2238 sid = s->session_index;
2239 if (sid < n_bits && except_map)
2241 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2245 case SESSION_CTRL_EVT_RESET:
2246 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2247 if (sid < n_bits && except_map)
2249 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2253 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2254 vcl_session_unlisten_reply_handler (wrk, e->data);
2256 case SESSION_CTRL_EVT_MIGRATED:
2257 vcl_session_migrated_handler (wrk, e->data);
2259 case SESSION_CTRL_EVT_CLEANUP:
2260 vcl_session_cleanup_handler (wrk, e->data);
2262 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2263 vcl_session_worker_update_reply_handler (wrk, e->data);
2265 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2266 vcl_session_req_worker_update_handler (wrk, e->data);
2268 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2269 vcl_session_app_add_segment_handler (wrk, e->data);
2271 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2272 vcl_session_app_del_segment_handler (wrk, e->data);
2274 case SESSION_CTRL_EVT_APP_WRK_RPC:
2275 vcl_worker_rpc_handler (wrk, e->data);
2278 clib_warning ("unhandled: %u", e->event_type);
2284 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2285 unsigned long n_bits, unsigned long *read_map,
2286 unsigned long *write_map, unsigned long *except_map,
2287 double time_to_wait, u32 * bits_set)
2289 svm_msg_q_msg_t *msg;
2293 svm_msg_q_lock (mq);
2294 if (svm_msg_q_is_empty (mq))
2298 svm_msg_q_unlock (mq);
2304 svm_msg_q_unlock (mq);
2307 else if (time_to_wait < 0)
2309 svm_msg_q_wait (mq);
2313 if (svm_msg_q_timedwait (mq, time_to_wait))
2315 svm_msg_q_unlock (mq);
2320 vcl_mq_dequeue_batch (wrk, mq, ~0);
2321 svm_msg_q_unlock (mq);
2323 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2325 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2326 e = svm_msg_q_msg_data (mq, msg);
2327 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2328 except_map, bits_set);
2329 svm_msg_q_free_msg (mq, msg);
2331 vec_reset_length (wrk->mq_msg_vector);
2332 vcl_handle_pending_wrk_updates (wrk);
2337 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2338 vcl_si_set * read_map, vcl_si_set * write_map,
2339 vcl_si_set * except_map, double time_to_wait,
2342 double wait = 0, start = 0;
2346 wait = time_to_wait;
2347 start = clib_time_now (&wrk->clib_time);
2352 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2353 write_map, except_map, wait, bits_set);
2359 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2367 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2368 vcl_si_set * read_map, vcl_si_set * write_map,
2369 vcl_si_set * except_map, double time_to_wait,
2372 vcl_mq_evt_conn_t *mqc;
2373 int __clib_unused n_read;
2377 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2378 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2379 vec_len (wrk->mq_events), time_to_wait);
2380 for (i = 0; i < n_mq_evts; i++)
2382 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2383 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2384 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2385 except_map, 0, bits_set);
2388 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2392 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2393 vcl_si_set * except_map, double time_to_wait)
2395 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2396 vcl_worker_t *wrk = vcl_worker_get_current ();
2397 vcl_session_t *s = 0;
2400 if (n_bits && read_map)
2402 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2403 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2404 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2405 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2407 if (n_bits && write_map)
2409 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2410 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2411 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2412 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2414 if (n_bits && except_map)
2416 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2417 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2418 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2419 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2428 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2430 if (!(s = vcl_session_get (wrk, sid)))
2432 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2437 if (vcl_session_write_ready (s))
2439 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2444 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2445 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2453 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2455 if (!(s = vcl_session_get (wrk, sid)))
2457 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2462 if (vcl_session_read_ready (s))
2464 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2471 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2473 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2474 read_map, write_map, except_map, &bits_set);
2476 vec_reset_length (wrk->unhandled_evts_vector);
2478 if (vcm->cfg.use_mq_eventfd)
2479 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2480 time_to_wait, &bits_set);
2482 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2483 time_to_wait, &bits_set);
2489 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2491 vppcom_epoll_t *vep;
2492 u32 sh = vep_handle;
2495 if (VPPCOM_DEBUG <= 2)
2498 s = vcl_session_get_w_handle (wrk, vep_handle);
2499 if (PREDICT_FALSE (!s))
2501 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2504 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2506 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2510 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2513 " is_vep_session = %u\n"
2514 " next_sh = 0x%x (%u)\n"
2515 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2516 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2518 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2520 s = vcl_session_get_w_handle (wrk, sh);
2521 if (PREDICT_FALSE (!s))
2523 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2526 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2528 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2530 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2532 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2536 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2537 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2538 sh, s->vep.vep_sh, vep_handle);
2539 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2541 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2543 " next_sh = 0x%x (%u)\n"
2544 " prev_sh = 0x%x (%u)\n"
2545 " vep_sh = 0x%x (%u)\n"
2546 " ev.events = 0x%x\n"
2547 " ev.data.u64 = 0x%llx\n"
2550 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2551 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2552 vep->ev.data.u64, vep->et_mask);
2557 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2561 vppcom_epoll_create (void)
2563 vcl_worker_t *wrk = vcl_worker_get_current ();
2564 vcl_session_t *vep_session;
2566 vep_session = vcl_session_alloc (wrk);
2568 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2569 vep_session->vep.vep_sh = ~0;
2570 vep_session->vep.next_sh = ~0;
2571 vep_session->vep.prev_sh = ~0;
2572 vep_session->vpp_handle = ~0;
2574 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2575 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2577 return vcl_session_handle (vep_session);
2581 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2582 struct epoll_event *event)
2584 vcl_worker_t *wrk = vcl_worker_get_current ();
2585 vcl_session_t *vep_session;
2590 if (vep_handle == session_handle)
2592 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2593 return VPPCOM_EINVAL;
2596 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2597 if (PREDICT_FALSE (!vep_session))
2599 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2600 return VPPCOM_EBADFD;
2602 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2604 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2605 return VPPCOM_EINVAL;
2608 ASSERT (vep_session->vep.vep_sh == ~0);
2609 ASSERT (vep_session->vep.prev_sh == ~0);
2611 s = vcl_session_get_w_handle (wrk, session_handle);
2612 if (PREDICT_FALSE (!s))
2614 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2615 return VPPCOM_EBADFD;
2617 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2619 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2620 return VPPCOM_EINVAL;
2626 if (PREDICT_FALSE (!event))
2628 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2629 return VPPCOM_EINVAL;
2631 if (vep_session->vep.next_sh != ~0)
2633 vcl_session_t *next_session;
2634 next_session = vcl_session_get_w_handle (wrk,
2635 vep_session->vep.next_sh);
2636 if (PREDICT_FALSE (!next_session))
2638 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2639 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2640 return VPPCOM_EBADFD;
2642 ASSERT (next_session->vep.prev_sh == vep_handle);
2643 next_session->vep.prev_sh = session_handle;
2645 s->vep.next_sh = vep_session->vep.next_sh;
2646 s->vep.prev_sh = vep_handle;
2647 s->vep.vep_sh = vep_handle;
2648 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2650 s->flags &= ~VCL_SESSION_F_IS_VEP;
2651 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2652 vep_session->vep.next_sh = session_handle;
2654 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2655 if (txf && (event->events & EPOLLOUT))
2656 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2658 /* Generate EPOLLOUT if tx fifo not full */
2659 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2661 session_event_t e = { 0 };
2662 e.event_type = SESSION_IO_EVT_TX;
2663 e.session_index = s->session_index;
2664 vec_add1 (wrk->unhandled_evts_vector, e);
2666 /* Generate EPOLLIN if rx fifo has data */
2667 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2669 session_event_t e = { 0 };
2670 e.event_type = SESSION_IO_EVT_RX;
2671 e.session_index = s->session_index;
2672 vec_add1 (wrk->unhandled_evts_vector, e);
2674 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2675 vep_handle, session_handle, event->events, event->data.u64);
2676 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2680 if (PREDICT_FALSE (!event))
2682 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2686 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2688 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2692 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2694 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2695 session_handle, s->vep.vep_sh, vep_handle);
2700 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2701 if ((event->events & EPOLLOUT) &&
2702 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2704 session_event_t e = { 0 };
2705 e.event_type = SESSION_IO_EVT_TX;
2706 e.session_index = s->session_index;
2707 vec_add1 (wrk->unhandled_evts_vector, e);
2709 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2711 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2712 if (event->events & EPOLLOUT)
2713 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2715 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2716 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2717 vep_handle, session_handle, event->events, event->data.u64);
2721 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2723 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2727 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2729 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2730 session_handle, s->vep.vep_sh, vep_handle);
2735 if (s->vep.prev_sh == vep_handle)
2736 vep_session->vep.next_sh = s->vep.next_sh;
2739 vcl_session_t *prev_session;
2740 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2741 if (PREDICT_FALSE (!prev_session))
2743 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2744 s->vep.prev_sh, session_handle);
2745 return VPPCOM_EBADFD;
2747 ASSERT (prev_session->vep.next_sh == session_handle);
2748 prev_session->vep.next_sh = s->vep.next_sh;
2750 if (s->vep.next_sh != ~0)
2752 vcl_session_t *next_session;
2753 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2754 if (PREDICT_FALSE (!next_session))
2756 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2757 s->vep.next_sh, session_handle);
2758 return VPPCOM_EBADFD;
2760 ASSERT (next_session->vep.prev_sh == session_handle);
2761 next_session->vep.prev_sh = s->vep.prev_sh;
2764 memset (&s->vep, 0, sizeof (s->vep));
2765 s->vep.next_sh = ~0;
2766 s->vep.prev_sh = ~0;
2768 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2770 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2772 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2774 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2776 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2780 VDBG (0, "Invalid operation (%d)!", op);
2784 vep_verify_epoll_chain (wrk, vep_handle);
2791 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2792 struct epoll_event *events, u32 * num_ev)
2794 session_disconnected_msg_t *disconnected_msg;
2795 session_connected_msg_t *connected_msg;
2796 u32 sid = ~0, session_events;
2797 u64 session_evt_data = ~0;
2801 switch (e->event_type)
2803 case SESSION_IO_EVT_RX:
2804 sid = e->session_index;
2805 s = vcl_session_get (wrk, sid);
2806 if (vcl_session_is_closed (s))
2808 vcl_fifo_rx_evt_valid_or_break (s);
2809 session_events = s->vep.ev.events;
2810 if (!(EPOLLIN & s->vep.ev.events)
2811 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2814 events[*num_ev].events |= EPOLLIN;
2815 session_evt_data = s->vep.ev.data.u64;
2816 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2818 case SESSION_IO_EVT_TX:
2819 sid = e->session_index;
2820 s = vcl_session_get (wrk, sid);
2821 if (vcl_session_is_closed (s))
2823 session_events = s->vep.ev.events;
2824 if (!(EPOLLOUT & session_events))
2827 events[*num_ev].events |= EPOLLOUT;
2828 session_evt_data = s->vep.ev.data.u64;
2829 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2830 s->ct_tx_fifo : s->tx_fifo);
2832 case SESSION_CTRL_EVT_ACCEPTED:
2834 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2836 s = vcl_session_get (wrk, e->session_index);
2839 session_events = s->vep.ev.events;
2840 sid = s->session_index;
2841 if (!(EPOLLIN & session_events))
2844 events[*num_ev].events |= EPOLLIN;
2845 session_evt_data = s->vep.ev.data.u64;
2847 case SESSION_CTRL_EVT_CONNECTED:
2850 connected_msg = (session_connected_msg_t *) e->data;
2851 sid = vcl_session_connected_handler (wrk, connected_msg);
2854 sid = e->session_index;
2855 s = vcl_session_get (wrk, sid);
2856 if (vcl_session_is_closed (s))
2858 session_events = s->vep.ev.events;
2859 /* Generate EPOLLOUT because there's no connected event */
2860 if (!(EPOLLOUT & session_events))
2863 events[*num_ev].events |= EPOLLOUT;
2864 session_evt_data = s->vep.ev.data.u64;
2865 if (s->session_state == VCL_STATE_DETACHED)
2866 events[*num_ev].events |= EPOLLHUP;
2868 case SESSION_CTRL_EVT_DISCONNECTED:
2869 disconnected_msg = (session_disconnected_msg_t *) e->data;
2870 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2871 if (vcl_session_is_closed (s))
2873 sid = s->session_index;
2874 session_events = s->vep.ev.events;
2876 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2877 session_evt_data = s->vep.ev.data.u64;
2879 case SESSION_CTRL_EVT_RESET:
2880 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2881 s = vcl_session_get (wrk, sid);
2882 if (vcl_session_is_closed (s))
2884 session_events = s->vep.ev.events;
2886 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2887 session_evt_data = s->vep.ev.data.u64;
2889 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2890 vcl_session_unlisten_reply_handler (wrk, e->data);
2892 case SESSION_CTRL_EVT_MIGRATED:
2893 vcl_session_migrated_handler (wrk, e->data);
2895 case SESSION_CTRL_EVT_CLEANUP:
2896 vcl_session_cleanup_handler (wrk, e->data);
2898 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2899 vcl_session_req_worker_update_handler (wrk, e->data);
2901 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2902 vcl_session_worker_update_reply_handler (wrk, e->data);
2904 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2905 vcl_session_app_add_segment_handler (wrk, e->data);
2907 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2908 vcl_session_app_del_segment_handler (wrk, e->data);
2910 case SESSION_CTRL_EVT_APP_WRK_RPC:
2911 vcl_worker_rpc_handler (wrk, e->data);
2914 VDBG (0, "unhandled: %u", e->event_type);
2920 events[*num_ev].data.u64 = session_evt_data;
2921 if (EPOLLONESHOT & session_events)
2923 s = vcl_session_get (wrk, sid);
2924 s->vep.ev.events = 0;
2931 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2932 struct epoll_event *events, u32 maxevents,
2933 double wait_for_time, u32 * num_ev)
2935 svm_msg_q_msg_t *msg;
2939 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2940 goto handle_dequeued;
2942 svm_msg_q_lock (mq);
2943 if (svm_msg_q_is_empty (mq))
2947 svm_msg_q_unlock (mq);
2950 else if (wait_for_time < 0)
2952 svm_msg_q_wait (mq);
2956 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2958 svm_msg_q_unlock (mq);
2963 ASSERT (maxevents > *num_ev);
2964 vcl_mq_dequeue_batch (wrk, mq, ~0);
2965 svm_msg_q_unlock (mq);
2968 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2970 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2971 e = svm_msg_q_msg_data (mq, msg);
2972 if (*num_ev < maxevents)
2973 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2975 vcl_handle_mq_event (wrk, e);
2976 svm_msg_q_free_msg (mq, msg);
2978 vec_reset_length (wrk->mq_msg_vector);
2979 vcl_handle_pending_wrk_updates (wrk);
2984 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2985 int maxevents, u32 n_evts, double wait_for_time)
2987 double wait = 0, start = 0, now;
2991 wait = wait_for_time;
2992 start = clib_time_now (&wrk->clib_time);
2997 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3004 now = clib_time_now (&wrk->clib_time);
3005 wait -= (now - start) * 1e3;
3014 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3015 int maxevents, u32 n_evts, double wait_for_time)
3017 double wait = 0, start = 0, now;
3018 int __clib_unused n_read;
3019 vcl_mq_evt_conn_t *mqc;
3023 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3026 wait = wait_for_time;
3027 start = clib_time_now (&wrk->clib_time);
3032 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3033 vec_len (wrk->mq_events), wait);
3036 VDBG (0, "epoll_wait error %u", errno);
3040 for (i = 0; i < n_mq_evts; i++)
3042 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3043 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3044 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3053 now = clib_time_now (&wrk->clib_time);
3054 wait -= (now - start) * 1e3;
3063 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3064 int maxevents, double wait_for_time)
3066 vcl_worker_t *wrk = vcl_worker_get_current ();
3067 vcl_session_t *vep_session;
3071 if (PREDICT_FALSE (maxevents <= 0))
3073 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3074 return VPPCOM_EINVAL;
3077 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3079 return VPPCOM_EBADFD;
3081 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3083 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3084 return VPPCOM_EINVAL;
3087 memset (events, 0, sizeof (*events) * maxevents);
3089 if (vec_len (wrk->unhandled_evts_vector))
3091 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3093 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3095 if (n_evts == maxevents)
3097 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3101 vec_reset_length (wrk->unhandled_evts_vector);
3104 if (vcm->cfg.use_mq_eventfd)
3105 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3108 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3113 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3114 void *buffer, uint32_t * buflen)
3116 vcl_worker_t *wrk = vcl_worker_get_current ();
3117 u32 *flags = buffer, tmp_flags = 0;
3118 vppcom_endpt_t *ep = buffer;
3119 vcl_session_t *session;
3122 session = vcl_session_get_w_handle (wrk, session_handle);
3124 return VPPCOM_EBADFD;
3128 case VPPCOM_ATTR_GET_NREAD:
3129 rv = vcl_session_read_ready (session);
3130 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3134 case VPPCOM_ATTR_GET_NWRITE:
3135 rv = vcl_session_write_ready (session);
3136 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3140 case VPPCOM_ATTR_GET_FLAGS:
3141 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3145 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3147 *buflen = sizeof (*flags);
3148 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3149 "is_nonblocking = %u", session_handle, *flags,
3150 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3156 case VPPCOM_ATTR_SET_FLAGS:
3157 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3159 if (*flags & O_NONBLOCK)
3160 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3162 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3164 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3165 " is_nonblocking = %u", session_handle, *flags,
3166 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3172 case VPPCOM_ATTR_GET_PEER_ADDR:
3173 if (PREDICT_TRUE (buffer && buflen &&
3174 (*buflen >= sizeof (*ep)) && ep->ip))
3176 ep->is_ip4 = session->transport.is_ip4;
3177 ep->port = session->transport.rmt_port;
3178 if (session->transport.is_ip4)
3179 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3180 sizeof (ip4_address_t));
3182 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3183 sizeof (ip6_address_t));
3184 *buflen = sizeof (*ep);
3185 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3186 "addr = %U, port %u", session_handle, ep->is_ip4,
3187 format_ip46_address, &session->transport.rmt_ip,
3188 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3189 clib_net_to_host_u16 (ep->port));
3195 case VPPCOM_ATTR_GET_LCL_ADDR:
3196 if (PREDICT_TRUE (buffer && buflen &&
3197 (*buflen >= sizeof (*ep)) && ep->ip))
3199 ep->is_ip4 = session->transport.is_ip4;
3200 ep->port = session->transport.lcl_port;
3201 if (session->transport.is_ip4)
3202 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3203 sizeof (ip4_address_t));
3205 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3206 sizeof (ip6_address_t));
3207 *buflen = sizeof (*ep);
3208 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3209 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3210 &session->transport.lcl_ip,
3211 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3212 clib_net_to_host_u16 (ep->port));
3218 case VPPCOM_ATTR_SET_LCL_ADDR:
3219 if (PREDICT_TRUE (buffer && buflen &&
3220 (*buflen >= sizeof (*ep)) && ep->ip))
3222 session->transport.is_ip4 = ep->is_ip4;
3223 session->transport.lcl_port = ep->port;
3224 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3225 *buflen = sizeof (*ep);
3226 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3227 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3228 &session->transport.lcl_ip,
3229 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3230 clib_net_to_host_u16 (ep->port));
3236 case VPPCOM_ATTR_GET_LIBC_EPFD:
3237 rv = session->libc_epfd;
3238 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3241 case VPPCOM_ATTR_SET_LIBC_EPFD:
3242 if (PREDICT_TRUE (buffer && buflen &&
3243 (*buflen == sizeof (session->libc_epfd))))
3245 session->libc_epfd = *(int *) buffer;
3246 *buflen = sizeof (session->libc_epfd);
3248 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3249 session->libc_epfd, *buflen);
3255 case VPPCOM_ATTR_GET_PROTOCOL:
3256 if (buffer && buflen && (*buflen >= sizeof (int)))
3258 *(int *) buffer = session->session_type;
3259 *buflen = sizeof (int);
3261 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3262 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3268 case VPPCOM_ATTR_GET_LISTEN:
3269 if (buffer && buflen && (*buflen >= sizeof (int)))
3271 *(int *) buffer = vcl_session_has_attr (session,
3272 VCL_SESS_ATTR_LISTEN);
3273 *buflen = sizeof (int);
3275 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3282 case VPPCOM_ATTR_GET_ERROR:
3283 if (buffer && buflen && (*buflen >= sizeof (int)))
3285 *(int *) buffer = 0;
3286 *buflen = sizeof (int);
3288 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3289 *(int *) buffer, *buflen);
3295 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3296 if (buffer && buflen && (*buflen >= sizeof (u32)))
3300 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3302 svm_fifo_size (session->tx_fifo) :
3303 vcm->cfg.tx_fifo_size);
3304 *buflen = sizeof (u32);
3306 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3307 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3314 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3315 if (buffer && buflen && (*buflen == sizeof (u32)))
3318 session->sndbuf_size = *(u32 *) buffer;
3319 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3320 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3327 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3328 if (buffer && buflen && (*buflen >= sizeof (u32)))
3332 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3334 svm_fifo_size (session->rx_fifo) :
3335 vcm->cfg.rx_fifo_size);
3336 *buflen = sizeof (u32);
3338 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3339 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3345 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3346 if (buffer && buflen && (*buflen == sizeof (u32)))
3349 session->rcvbuf_size = *(u32 *) buffer;
3350 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3351 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3358 case VPPCOM_ATTR_GET_REUSEADDR:
3359 if (buffer && buflen && (*buflen >= sizeof (int)))
3362 *(int *) buffer = vcl_session_has_attr (session,
3363 VCL_SESS_ATTR_REUSEADDR);
3364 *buflen = sizeof (int);
3366 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3367 *(int *) buffer, *buflen);
3373 case VPPCOM_ATTR_SET_REUSEADDR:
3374 if (buffer && buflen && (*buflen == sizeof (int)) &&
3375 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3378 if (*(int *) buffer)
3379 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3381 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3383 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3384 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3391 case VPPCOM_ATTR_GET_REUSEPORT:
3392 if (buffer && buflen && (*buflen >= sizeof (int)))
3395 *(int *) buffer = vcl_session_has_attr (session,
3396 VCL_SESS_ATTR_REUSEPORT);
3397 *buflen = sizeof (int);
3399 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3400 *(int *) buffer, *buflen);
3406 case VPPCOM_ATTR_SET_REUSEPORT:
3407 if (buffer && buflen && (*buflen == sizeof (int)) &&
3408 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3411 if (*(int *) buffer)
3412 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3414 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3416 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3417 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3424 case VPPCOM_ATTR_GET_BROADCAST:
3425 if (buffer && buflen && (*buflen >= sizeof (int)))
3428 *(int *) buffer = vcl_session_has_attr (session,
3429 VCL_SESS_ATTR_BROADCAST);
3430 *buflen = sizeof (int);
3432 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3433 *(int *) buffer, *buflen);
3439 case VPPCOM_ATTR_SET_BROADCAST:
3440 if (buffer && buflen && (*buflen == sizeof (int)))
3443 if (*(int *) buffer)
3444 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3446 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3448 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3449 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3456 case VPPCOM_ATTR_GET_V6ONLY:
3457 if (buffer && buflen && (*buflen >= sizeof (int)))
3460 *(int *) buffer = vcl_session_has_attr (session,
3461 VCL_SESS_ATTR_V6ONLY);
3462 *buflen = sizeof (int);
3464 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3465 *(int *) buffer, *buflen);
3471 case VPPCOM_ATTR_SET_V6ONLY:
3472 if (buffer && buflen && (*buflen == sizeof (int)))
3475 if (*(int *) buffer)
3476 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3478 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3480 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3481 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3488 case VPPCOM_ATTR_GET_KEEPALIVE:
3489 if (buffer && buflen && (*buflen >= sizeof (int)))
3492 *(int *) buffer = vcl_session_has_attr (session,
3493 VCL_SESS_ATTR_KEEPALIVE);
3494 *buflen = sizeof (int);
3496 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3497 *(int *) buffer, *buflen);
3503 case VPPCOM_ATTR_SET_KEEPALIVE:
3504 if (buffer && buflen && (*buflen == sizeof (int)))
3507 if (*(int *) buffer)
3508 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3510 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3512 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3513 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3520 case VPPCOM_ATTR_GET_TCP_NODELAY:
3521 if (buffer && buflen && (*buflen >= sizeof (int)))
3524 *(int *) buffer = vcl_session_has_attr (session,
3525 VCL_SESS_ATTR_TCP_NODELAY);
3526 *buflen = sizeof (int);
3528 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3529 *(int *) buffer, *buflen);
3535 case VPPCOM_ATTR_SET_TCP_NODELAY:
3536 if (buffer && buflen && (*buflen == sizeof (int)))
3539 if (*(int *) buffer)
3540 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3542 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3544 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3545 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3552 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3553 if (buffer && buflen && (*buflen >= sizeof (int)))
3556 *(int *) buffer = vcl_session_has_attr (session,
3557 VCL_SESS_ATTR_TCP_KEEPIDLE);
3558 *buflen = sizeof (int);
3560 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3561 *(int *) buffer, *buflen);
3567 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3568 if (buffer && buflen && (*buflen == sizeof (int)))
3571 if (*(int *) buffer)
3572 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3574 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3576 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3577 vcl_session_has_attr (session,
3578 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3584 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3585 if (buffer && buflen && (*buflen >= sizeof (int)))
3588 *(int *) buffer = vcl_session_has_attr (session,
3589 VCL_SESS_ATTR_TCP_KEEPINTVL);
3590 *buflen = sizeof (int);
3592 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3593 *(int *) buffer, *buflen);
3599 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3600 if (buffer && buflen && (*buflen == sizeof (int)))
3603 if (*(int *) buffer)
3604 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3606 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3608 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3609 vcl_session_has_attr (session,
3610 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3616 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3617 if (buffer && buflen && (*buflen >= sizeof (u32)))
3620 *(u32 *) buffer = session->user_mss;
3621 *buflen = sizeof (int);
3623 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3624 *(int *) buffer, *buflen);
3630 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3631 if (buffer && buflen && (*buflen == sizeof (u32)))
3634 session->user_mss = *(u32 *) buffer;
3636 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3637 session->user_mss, *buflen);
3643 case VPPCOM_ATTR_SET_SHUT:
3644 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3645 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3646 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3647 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3650 case VPPCOM_ATTR_GET_SHUT:
3651 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3653 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3656 *(int *) buffer = SHUT_RD;
3657 else if (tmp_flags == 2)
3658 *(int *) buffer = SHUT_WR;
3659 else if (tmp_flags == 3)
3660 *(int *) buffer = SHUT_RDWR;
3661 *buflen = sizeof (int);
3664 case VPPCOM_ATTR_SET_CONNECTED:
3665 session->flags |= VCL_SESSION_F_CONNECTED;
3668 case VPPCOM_ATTR_SET_CKPAIR:
3669 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
3670 !vcl_session_has_crypto (session))
3675 session->ckpair_index = *(uint32_t *) buffer;
3678 case VPPCOM_ATTR_SET_VRF:
3679 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3684 session->vrf = *(u32 *) buffer;
3687 case VPPCOM_ATTR_GET_VRF:
3688 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3693 *(u32 *) buffer = session->vrf;
3694 *buflen = sizeof (u32);
3706 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3707 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3709 vcl_worker_t *wrk = vcl_worker_get_current ();
3710 vcl_session_t *session;
3714 rv = vppcom_session_read (session_handle, buffer, buflen);
3715 else if (flags & MSG_PEEK)
3716 rv = vppcom_session_peek (session_handle, buffer, buflen);
3719 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3720 return VPPCOM_EAFNOSUPPORT;
3725 session = vcl_session_get_w_handle (wrk, session_handle);
3726 if (session->transport.is_ip4)
3727 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3728 sizeof (ip4_address_t));
3730 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3731 sizeof (ip6_address_t));
3732 ep->is_ip4 = session->transport.is_ip4;
3733 ep->port = session->transport.rmt_port;
3740 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3741 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3743 vcl_worker_t *wrk = vcl_worker_get_current ();
3746 s = vcl_session_get_w_handle (wrk, session_handle);
3748 return VPPCOM_EBADFD;
3751 return VPPCOM_EINVAL;
3755 if (!vcl_session_is_cl (s))
3756 return VPPCOM_EINVAL;
3758 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3759 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3761 u32 session_index = s->session_index;
3762 f64 timeout = vcm->cfg.session_timeout;
3765 vcl_send_session_connect (wrk, s);
3766 rv = vppcom_wait_for_session_state_change (session_index,
3771 s = vcl_session_get (wrk, session_index);
3774 s->transport.is_ip4 = ep->is_ip4;
3775 s->transport.rmt_port = ep->port;
3776 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3781 // TBD check the flags and do the right thing
3782 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3785 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3786 s->is_dgram ? 1 : 0));
3790 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3792 vcl_worker_t *wrk = vcl_worker_get_current ();
3793 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3794 u32 i, keep_trying = 1;
3795 svm_msg_q_msg_t msg;
3799 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3802 return VPPCOM_EFAULT;
3806 vcl_session_t *session;
3808 /* Dequeue all events and drop all unhandled io events */
3809 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3811 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3812 vcl_handle_mq_event (wrk, e);
3813 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3815 vec_reset_length (wrk->unhandled_evts_vector);
3817 for (i = 0; i < n_sids; i++)
3819 session = vcl_session_get (wrk, vp[i].sh);
3822 vp[i].revents = POLLHUP;
3829 if (POLLIN & vp[i].events)
3831 rv = vcl_session_read_ready (session);
3834 vp[i].revents |= POLLIN;
3841 case VPPCOM_ECONNRESET:
3842 vp[i].revents = POLLHUP;
3846 vp[i].revents = POLLERR;
3853 if (POLLOUT & vp[i].events)
3855 rv = vcl_session_write_ready (session);
3858 vp[i].revents |= POLLOUT;
3865 case VPPCOM_ECONNRESET:
3866 vp[i].revents = POLLHUP;
3870 vp[i].revents = POLLERR;
3877 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3879 vp[i].revents = POLLNVAL;
3883 if (wait_for_time != -1)
3884 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3886 while ((num_ev == 0) && keep_trying);
3892 vppcom_mq_epoll_fd (void)
3894 vcl_worker_t *wrk = vcl_worker_get_current ();
3895 return wrk->mqs_epfd;
3899 vppcom_session_index (vcl_session_handle_t session_handle)
3901 return session_handle & 0xFFFFFF;
3905 vppcom_session_worker (vcl_session_handle_t session_handle)
3907 return session_handle >> 24;
3911 vppcom_worker_register (void)
3913 if (!vcl_worker_alloc_and_init ())
3914 return VPPCOM_EEXIST;
3916 if (vcl_worker_register_with_vpp ())
3917 return VPPCOM_EEXIST;
3923 vppcom_worker_unregister (void)
3925 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3926 vcl_set_worker_index (~0);
3930 vppcom_worker_index_set (int index)
3932 vcl_set_worker_index (index);
3936 vppcom_worker_index (void)
3938 return vcl_get_worker_index ();
3942 vppcom_worker_mqs_epfd (void)
3944 vcl_worker_t *wrk = vcl_worker_get_current ();
3945 if (!vcm->cfg.use_mq_eventfd)
3947 return wrk->mqs_epfd;
3951 vppcom_session_is_connectable_listener (uint32_t session_handle)
3953 vcl_session_t *session;
3954 vcl_worker_t *wrk = vcl_worker_get_current ();
3955 session = vcl_session_get_w_handle (wrk, session_handle);
3957 return VPPCOM_EBADFD;
3958 return vcl_session_is_connectable_listener (wrk, session);
3962 vppcom_session_listener (uint32_t session_handle)
3964 vcl_worker_t *wrk = vcl_worker_get_current ();
3965 vcl_session_t *listen_session, *session;
3966 session = vcl_session_get_w_handle (wrk, session_handle);
3968 return VPPCOM_EBADFD;
3969 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3970 return VPPCOM_EBADFD;
3971 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3972 if (!listen_session)
3973 return VPPCOM_EBADFD;
3974 return vcl_session_handle (listen_session);
3978 vppcom_session_n_accepted (uint32_t session_handle)
3980 vcl_worker_t *wrk = vcl_worker_get_current ();
3981 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3983 return VPPCOM_EBADFD;
3984 return session->n_accepted_sessions;
3988 vppcom_proto_str (vppcom_proto_t proto)
3990 char const *proto_str;
3994 case VPPCOM_PROTO_TCP:
3997 case VPPCOM_PROTO_UDP:
4000 case VPPCOM_PROTO_TLS:
4003 case VPPCOM_PROTO_QUIC:
4007 proto_str = "UNKNOWN";
4014 vppcom_retval_str (int retval)
4025 st = "VPPCOM_EAGAIN";
4029 st = "VPPCOM_EFAULT";
4033 st = "VPPCOM_ENOMEM";
4037 st = "VPPCOM_EINVAL";
4041 st = "VPPCOM_EBADFD";
4044 case VPPCOM_EAFNOSUPPORT:
4045 st = "VPPCOM_EAFNOSUPPORT";
4048 case VPPCOM_ECONNABORTED:
4049 st = "VPPCOM_ECONNABORTED";
4052 case VPPCOM_ECONNRESET:
4053 st = "VPPCOM_ECONNRESET";
4056 case VPPCOM_ENOTCONN:
4057 st = "VPPCOM_ENOTCONN";
4060 case VPPCOM_ECONNREFUSED:
4061 st = "VPPCOM_ECONNREFUSED";
4064 case VPPCOM_ETIMEDOUT:
4065 st = "VPPCOM_ETIMEDOUT";
4069 st = "UNKNOWN_STATE";
4077 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4079 if (vcm->cfg.vpp_app_socket_api)
4081 clib_warning ("not supported");
4082 return VPPCOM_EINVAL;
4084 return vcl_bapi_add_cert_key_pair (ckpair);
4088 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4090 if (vcm->cfg.vpp_app_socket_api)
4092 clib_warning ("not supported");
4093 return VPPCOM_EINVAL;
4095 return vcl_bapi_del_cert_key_pair (ckpair_index);
4099 * fd.io coding-style-patch-verification: ON
4102 * eval: (c-set-style "gnu")