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)
28 u32 n_msgs = 0, sz, len;
30 while ((sz = svm_msg_q_size (mq)))
32 len = vec_len (wrk->mq_msg_vector);
33 vec_validate (wrk->mq_msg_vector, len + sz - 1);
34 svm_msg_q_sub_raw_batch (mq, wrk->mq_msg_vector + len, sz);
41 vppcom_session_state_str (vcl_session_state_t state)
47 case VCL_STATE_CLOSED:
50 case VCL_STATE_LISTEN:
56 case VCL_STATE_VPP_CLOSING:
57 st = "STATE_VPP_CLOSING";
59 case VCL_STATE_DISCONNECT:
60 st = "STATE_DISCONNECT";
62 case VCL_STATE_DETACHED:
63 st = "STATE_DETACHED";
65 case VCL_STATE_UPDATED:
68 case VCL_STATE_LISTEN_NO_MQ:
69 st = "STATE_LISTEN_NO_MQ";
80 format_ip4_address (u8 * s, va_list * args)
82 u8 *a = va_arg (*args, u8 *);
83 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
87 format_ip6_address (u8 * s, va_list * args)
89 ip6_address_t *a = va_arg (*args, ip6_address_t *);
90 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
92 i_max_n_zero = ARRAY_LEN (a->as_u16);
94 i_first_zero = i_max_n_zero;
96 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
98 u32 is_zero = a->as_u16[i] == 0;
99 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
105 if ((!is_zero && n_zeros > max_n_zeros)
106 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
108 i_max_n_zero = i_first_zero;
109 max_n_zeros = n_zeros;
110 i_first_zero = ARRAY_LEN (a->as_u16);
115 last_double_colon = 0;
116 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
118 if (i == i_max_n_zero && max_n_zeros > 1)
120 s = format (s, "::");
121 i += max_n_zeros - 1;
122 last_double_colon = 1;
126 s = format (s, "%s%x",
127 (last_double_colon || i == 0) ? "" : ":",
128 clib_net_to_host_u16 (a->as_u16[i]));
129 last_double_colon = 0;
136 /* Format an IP46 address. */
138 format_ip46_address (u8 * s, va_list * args)
140 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
141 ip46_type_t type = va_arg (*args, ip46_type_t);
147 is_ip4 = ip46_address_is_ip4 (ip46);
158 format (s, "%U", format_ip4_address, &ip46->ip4) :
159 format (s, "%U", format_ip6_address, &ip46->ip6);
163 * VPPCOM Utility Functions
167 vcl_msg_add_ext_config (vcl_session_t *s, uword *offset)
171 c = vcl_segment_alloc_chunk (vcl_vpp_worker_segment_handle (0),
172 0 /* one slice only */, s->ext_config->len,
175 clib_memcpy_fast (c->data, s->ext_config, s->ext_config->len);
179 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
181 app_session_evt_t _app_evt, *app_evt = &_app_evt;
182 session_listen_msg_t *mp;
185 mq = vcl_worker_ctrl_mq (wrk);
186 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
187 mp = (session_listen_msg_t *) app_evt->evt->data;
188 memset (mp, 0, sizeof (*mp));
189 mp->client_index = wrk->api_client_handle;
190 mp->context = s->session_index;
191 mp->wrk_index = wrk->vpp_wrk_index;
192 mp->is_ip4 = s->transport.is_ip4;
193 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
194 mp->port = s->transport.lcl_port;
195 mp->proto = s->session_type;
197 if (s->flags & VCL_SESSION_F_CONNECTED)
198 mp->flags = TRANSPORT_CFG_F_CONNECTED;
200 vcl_msg_add_ext_config (s, &mp->ext_config);
201 app_send_ctrl_evt_to_vpp (mq, app_evt);
204 clib_mem_free (s->ext_config);
210 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
212 app_session_evt_t _app_evt, *app_evt = &_app_evt;
213 session_connect_msg_t *mp;
216 mq = vcl_worker_ctrl_mq (wrk);
217 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
218 mp = (session_connect_msg_t *) app_evt->evt->data;
219 memset (mp, 0, sizeof (*mp));
220 mp->client_index = wrk->api_client_handle;
221 mp->context = s->session_index;
222 mp->wrk_index = wrk->vpp_wrk_index;
223 mp->is_ip4 = s->transport.is_ip4;
224 mp->parent_handle = s->parent_handle;
225 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
226 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
227 mp->port = s->transport.rmt_port;
228 mp->lcl_port = s->transport.lcl_port;
229 mp->proto = s->session_type;
231 if (s->flags & VCL_SESSION_F_CONNECTED)
232 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
234 vcl_msg_add_ext_config (s, &mp->ext_config);
235 app_send_ctrl_evt_to_vpp (mq, app_evt);
239 clib_mem_free (s->ext_config);
245 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
247 app_session_evt_t _app_evt, *app_evt = &_app_evt;
248 session_unlisten_msg_t *mp;
251 mq = vcl_worker_ctrl_mq (wrk);
252 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
253 mp = (session_unlisten_msg_t *) app_evt->evt->data;
254 memset (mp, 0, sizeof (*mp));
255 mp->client_index = wrk->api_client_handle;
256 mp->wrk_index = wrk->vpp_wrk_index;
257 mp->handle = s->vpp_handle;
258 mp->context = wrk->wrk_index;
259 app_send_ctrl_evt_to_vpp (mq, app_evt);
263 vcl_send_session_shutdown (vcl_worker_t *wrk, vcl_session_t *s)
265 app_session_evt_t _app_evt, *app_evt = &_app_evt;
266 session_shutdown_msg_t *mp;
269 /* Send to thread that owns the session */
271 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_SHUTDOWN);
272 mp = (session_shutdown_msg_t *) app_evt->evt->data;
273 memset (mp, 0, sizeof (*mp));
274 mp->client_index = wrk->api_client_handle;
275 mp->handle = s->vpp_handle;
276 app_send_ctrl_evt_to_vpp (mq, app_evt);
280 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
282 app_session_evt_t _app_evt, *app_evt = &_app_evt;
283 session_disconnect_msg_t *mp;
286 /* Send to thread that owns the session */
288 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
289 mp = (session_disconnect_msg_t *) app_evt->evt->data;
290 memset (mp, 0, sizeof (*mp));
291 mp->client_index = wrk->api_client_handle;
292 mp->handle = s->vpp_handle;
293 app_send_ctrl_evt_to_vpp (mq, app_evt);
297 vcl_send_app_detach (vcl_worker_t * wrk)
299 app_session_evt_t _app_evt, *app_evt = &_app_evt;
300 session_app_detach_msg_t *mp;
303 mq = vcl_worker_ctrl_mq (wrk);
304 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
305 mp = (session_app_detach_msg_t *) app_evt->evt->data;
306 memset (mp, 0, sizeof (*mp));
307 mp->client_index = wrk->api_client_handle;
308 app_send_ctrl_evt_to_vpp (mq, app_evt);
312 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
313 session_handle_t handle, int retval)
315 app_session_evt_t _app_evt, *app_evt = &_app_evt;
316 session_accepted_reply_msg_t *rmp;
317 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
318 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
319 rmp->handle = handle;
320 rmp->context = context;
321 rmp->retval = retval;
322 app_send_ctrl_evt_to_vpp (mq, app_evt);
326 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
329 app_session_evt_t _app_evt, *app_evt = &_app_evt;
330 session_disconnected_reply_msg_t *rmp;
331 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
332 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
333 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
334 rmp->handle = s->vpp_handle;
335 rmp->context = wrk->api_client_handle;
336 rmp->retval = retval;
337 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
341 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
344 app_session_evt_t _app_evt, *app_evt = &_app_evt;
345 session_reset_reply_msg_t *rmp;
346 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
347 SESSION_CTRL_EVT_RESET_REPLY);
348 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
349 rmp->handle = s->vpp_handle;
350 rmp->context = wrk->api_client_handle;
351 rmp->retval = retval;
352 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
356 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
359 app_session_evt_t _app_evt, *app_evt = &_app_evt;
360 session_worker_update_msg_t *mp;
362 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
363 SESSION_CTRL_EVT_WORKER_UPDATE);
364 mp = (session_worker_update_msg_t *) app_evt->evt->data;
365 mp->client_index = wrk->api_client_handle;
366 mp->handle = s->vpp_handle;
367 mp->req_wrk_index = wrk->vpp_wrk_index;
368 mp->wrk_index = wrk_index;
369 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
373 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
375 app_session_evt_t _app_evt, *app_evt = &_app_evt;
376 session_app_wrk_rpc_msg_t *mp;
377 vcl_worker_t *dst_wrk, *wrk;
381 if (data_len > sizeof (mp->data))
384 clib_spinlock_lock (&vcm->workers_lock);
386 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
390 wrk = vcl_worker_get_current ();
391 mq = vcl_worker_ctrl_mq (wrk);
392 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
393 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
394 mp->client_index = wrk->api_client_handle;
395 mp->wrk_index = dst_wrk->vpp_wrk_index;
396 clib_memcpy (mp->data, data, data_len);
397 app_send_ctrl_evt_to_vpp (mq, app_evt);
401 clib_spinlock_unlock (&vcm->workers_lock);
406 vcl_session_transport_attr (vcl_worker_t *wrk, vcl_session_t *s, u8 is_get,
407 transport_endpt_attr_t *attr)
409 app_session_evt_t _app_evt, *app_evt = &_app_evt;
410 session_transport_attr_msg_t *mp;
414 ASSERT (!wrk->session_attr_op);
415 wrk->session_attr_op = 1;
416 wrk->session_attr_op_rv = -1;
419 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_TRANSPORT_ATTR);
420 mp = (session_transport_attr_msg_t *) app_evt->evt->data;
421 memset (mp, 0, sizeof (*mp));
422 mp->client_index = wrk->api_client_handle;
423 mp->handle = s->vpp_handle;
426 app_send_ctrl_evt_to_vpp (mq, app_evt);
428 timeout = clib_time_now (&wrk->clib_time) + 1;
430 while (wrk->session_attr_op && clib_time_now (&wrk->clib_time) < timeout)
431 vcl_flush_mq_events ();
433 if (!wrk->session_attr_op_rv && is_get)
434 *attr = wrk->session_attr_rv;
436 wrk->session_attr_op = 0;
438 return wrk->session_attr_op_rv;
442 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
445 vcl_session_t *session, *listen_session;
448 session = vcl_session_alloc (wrk);
450 listen_session = vcl_session_get (wrk, ls_index);
451 if (listen_session->vpp_handle != mp->listener_handle)
453 VDBG (0, "ERROR: listener handle %lu does not match session %u",
454 mp->listener_handle, ls_index);
458 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
460 mp->vpp_event_queue_address, 0, session))
462 VDBG (0, "failed to attach fifos for %u", session->session_index);
466 session->vpp_handle = mp->handle;
467 session->session_state = VCL_STATE_READY;
468 session->transport.rmt_port = mp->rmt.port;
469 session->transport.is_ip4 = mp->rmt.is_ip4;
470 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
471 sizeof (ip46_address_t));
473 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
474 session->transport.lcl_port = listen_session->transport.lcl_port;
475 session->transport.lcl_ip = listen_session->transport.lcl_ip;
476 session->session_type = listen_session->session_type;
477 session->is_dgram = vcl_proto_is_dgram (session->session_type);
478 session->listener_index = listen_session->session_index;
479 listen_session->n_accepted_sessions++;
481 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
482 " port %d queue %p!", session->session_index, mp->handle,
483 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
484 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
485 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
486 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
488 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
489 session->vpp_handle, 0);
491 return session->session_index;
494 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
495 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
496 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
497 VNET_API_ERROR_INVALID_ARGUMENT);
498 vcl_session_free (wrk, session);
499 return VCL_INVALID_SESSION_INDEX;
503 vcl_session_connected_handler (vcl_worker_t * wrk,
504 session_connected_msg_t * mp)
506 vcl_session_t *session = 0;
509 session_index = mp->context;
510 session = vcl_session_get (wrk, session_index);
513 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
514 mp->handle, session_index);
515 return VCL_INVALID_SESSION_INDEX;
519 VDBG (0, "ERROR: session index %u: connect failed! %U",
520 session_index, format_session_error, mp->retval);
521 session->session_state = VCL_STATE_DETACHED;
522 session->vpp_handle = mp->handle;
523 return session_index;
526 session->vpp_handle = mp->handle;
528 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
530 mp->vpp_event_queue_address, 0, session))
532 VDBG (0, "failed to attach fifos for %u", session->session_index);
533 session->session_state = VCL_STATE_DETACHED;
534 vcl_send_session_disconnect (wrk, session);
535 return session_index;
540 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
541 mp->ct_tx_fifo, (uword) ~0, 1, session))
543 VDBG (0, "failed to attach ct fifos for %u", session->session_index);
544 session->session_state = VCL_STATE_DETACHED;
545 vcl_send_session_disconnect (wrk, session);
546 return session_index;
550 session->transport.is_ip4 = mp->lcl.is_ip4;
551 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
552 sizeof (session->transport.lcl_ip));
553 session->transport.lcl_port = mp->lcl.port;
555 /* Application closed session before connect reply */
556 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
557 && session->session_state == VCL_STATE_CLOSED)
558 vcl_send_session_disconnect (wrk, session);
560 session->session_state = VCL_STATE_READY;
562 /* Add it to lookup table */
563 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
565 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
566 " refcnt %d", session_index, mp->handle, session->rx_fifo,
567 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
569 return session_index;
573 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
575 vcl_session_msg_t *accepted_msg;
578 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
580 accepted_msg = &session->accept_evts_fifo[i];
581 if (accepted_msg->accepted_msg.handle == handle)
583 accepted_msg->flags |= flags;
591 vcl_session_reset_handler (vcl_worker_t * wrk,
592 session_reset_msg_t * reset_msg)
594 vcl_session_t *session;
597 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
598 session = vcl_session_get (wrk, sid);
601 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
602 return VCL_INVALID_SESSION_INDEX;
605 /* Caught a reset before actually accepting the session */
606 if (session->session_state == VCL_STATE_LISTEN)
609 if (!vcl_flag_accepted_session (session, reset_msg->handle,
610 VCL_ACCEPTED_F_RESET))
611 VDBG (0, "session was not accepted!");
612 return VCL_INVALID_SESSION_INDEX;
615 if (session->session_state != VCL_STATE_CLOSED)
616 session->session_state = VCL_STATE_DISCONNECT;
617 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
622 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
624 vcl_session_t *session;
625 u32 sid = mp->context;
627 session = vcl_session_get (wrk, sid);
630 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
631 format_session_error, mp->retval);
634 session->session_state = VCL_STATE_DETACHED;
635 session->vpp_handle = mp->handle;
640 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
642 return VCL_INVALID_SESSION_INDEX;
646 session->vpp_handle = mp->handle;
647 session->transport.is_ip4 = mp->lcl_is_ip4;
648 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
649 sizeof (ip46_address_t));
650 session->transport.lcl_port = mp->lcl_port;
651 vcl_session_table_add_listener (wrk, mp->handle, sid);
652 session->session_state = VCL_STATE_LISTEN;
654 if (vcl_session_is_cl (session))
656 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
657 mp->tx_fifo, mp->vpp_evt_q, 0, session))
659 VDBG (0, "failed to attach fifos for %u", session->session_index);
660 session->session_state = VCL_STATE_DETACHED;
661 return VCL_INVALID_SESSION_INDEX;
665 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
670 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
672 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
675 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
678 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
681 if (s->session_state != VCL_STATE_DISCONNECT)
683 /* Connected udp listener */
684 if (s->session_type == VPPCOM_PROTO_UDP
685 && s->session_state == VCL_STATE_CLOSED)
688 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
693 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
694 s->session_index, mp->handle, format_session_error, mp->retval);
696 if (mp->context != wrk->wrk_index)
697 VDBG (0, "wrong context");
699 vcl_session_table_del_vpp_handle (wrk, mp->handle);
700 vcl_session_free (wrk, s);
704 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
706 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
710 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
713 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
717 /* Only validate if a value is provided */
718 if (mp->segment_handle != SESSION_INVALID_HANDLE)
720 fs_index = vcl_segment_table_lookup (mp->segment_handle);
721 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
723 VDBG (0, "segment %lx for session %u is not mounted!",
724 mp->segment_handle, s->session_index);
725 s->session_state = VCL_STATE_DETACHED;
730 s->vpp_handle = mp->new_handle;
732 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
733 mp->vpp_thread_index, &s->vpp_evt_q);
735 vcl_session_table_del_vpp_handle (wrk, mp->handle);
736 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
738 /* Generate new tx event if we have outstanding data */
739 if (svm_fifo_has_event (s->tx_fifo))
740 app_send_io_evt_to_vpp (s->vpp_evt_q,
741 s->tx_fifo->shr->master_session_index,
742 SESSION_IO_EVT_TX, SVM_Q_WAIT);
744 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
745 mp->vpp_thread_index, mp->new_handle);
748 static vcl_session_t *
749 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
751 vcl_session_msg_t *vcl_msg;
752 vcl_session_t *session;
754 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
755 if (PREDICT_FALSE (session != 0))
756 VWRN ("session overlap handle %lu state %u!", msg->handle,
757 session->session_state);
759 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
762 VERR ("couldn't find listen session: listener handle %llx",
763 msg->listener_handle);
767 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
769 vcl_msg->accepted_msg = *msg;
770 /* Session handle points to listener until fully accepted by app */
771 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
776 static vcl_session_t *
777 vcl_session_disconnected_handler (vcl_worker_t * wrk,
778 session_disconnected_msg_t * msg)
780 vcl_session_t *session;
782 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
785 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
789 /* Late disconnect notification on a session that has been closed */
790 if (session->session_state == VCL_STATE_CLOSED)
793 /* Caught a disconnect before actually accepting the session */
794 if (session->session_state == VCL_STATE_LISTEN)
796 if (!vcl_flag_accepted_session (session, msg->handle,
797 VCL_ACCEPTED_F_CLOSED))
798 VDBG (0, "session was not accepted!");
802 /* If not already reset change state */
803 if (session->session_state != VCL_STATE_DISCONNECT)
804 session->session_state = VCL_STATE_VPP_CLOSING;
810 vppcom_session_shutdown (uint32_t session_handle)
812 vcl_worker_t *wrk = vcl_worker_get_current ();
813 vcl_session_t *session;
814 vcl_session_state_t state;
817 session = vcl_session_get_w_handle (wrk, session_handle);
818 if (PREDICT_FALSE (!session))
819 return VPPCOM_EBADFD;
821 vpp_handle = session->vpp_handle;
822 state = session->session_state;
824 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
825 vpp_handle, state, vppcom_session_state_str (state));
827 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
829 VDBG (0, "ERROR: Cannot shutdown a listen socket!");
830 return VPPCOM_EBADFD;
833 if (PREDICT_TRUE (state == VCL_STATE_READY))
835 VDBG (1, "session %u [0x%llx]: sending shutdown...",
836 session->session_index, vpp_handle);
838 vcl_send_session_shutdown (wrk, session);
839 session->flags |= VCL_SESSION_F_SHUTDOWN;
846 vppcom_session_disconnect (u32 session_handle)
848 vcl_worker_t *wrk = vcl_worker_get_current ();
849 vcl_session_t *session, *listen_session;
850 vcl_session_state_t state;
853 session = vcl_session_get_w_handle (wrk, session_handle);
855 return VPPCOM_EBADFD;
857 vpp_handle = session->vpp_handle;
858 state = session->session_state;
860 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
861 vpp_handle, state, vppcom_session_state_str (state));
863 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
865 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
866 return VPPCOM_EBADFD;
869 if (state == VCL_STATE_VPP_CLOSING)
871 vcl_send_session_disconnected_reply (wrk, session, 0);
872 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
873 session->session_index, vpp_handle);
877 /* Session doesn't have an event queue yet. Probably a non-blocking
878 * connect. Wait for the reply */
879 if (PREDICT_FALSE (!session->vpp_evt_q))
882 VDBG (1, "session %u [0x%llx]: sending disconnect...",
883 session->session_index, vpp_handle);
884 vcl_send_session_disconnect (wrk, session);
887 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
889 listen_session = vcl_session_get (wrk, session->listener_index);
890 listen_session->n_accepted_sessions--;
897 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
899 session_cleanup_msg_t *msg;
900 vcl_session_t *session;
902 msg = (session_cleanup_msg_t *) data;
903 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
906 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
910 if (msg->type == SESSION_CLEANUP_TRANSPORT)
912 /* Transport was cleaned up before we confirmed close. Probably the
913 * app is still waiting for some data that cannot be delivered.
914 * Confirm close to make sure everything is cleaned up.
915 * Move to undetermined state to ensure that the session is not
916 * removed before both vpp and the app cleanup.
917 * - If the app closes first, the session is moved to CLOSED state
918 * and the session cleanup notification from vpp removes the
920 * - If vpp cleans up the session first, the session is moved to
921 * DETACHED state lower and subsequently the close from the app
924 if (session->session_state == VCL_STATE_VPP_CLOSING)
926 vppcom_session_disconnect (vcl_session_handle (session));
927 session->session_state = VCL_STATE_UPDATED;
929 else if (session->session_state == VCL_STATE_DISCONNECT)
931 vcl_send_session_reset_reply (wrk, session, 0);
932 session->session_state = VCL_STATE_UPDATED;
937 vcl_session_table_del_vpp_handle (wrk, msg->handle);
938 /* Should not happen. App did not close the connection so don't free it. */
939 if (session->session_state != VCL_STATE_CLOSED)
941 VDBG (0, "app did not close session %d", session->session_index);
942 session->session_state = VCL_STATE_DETACHED;
943 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
946 vcl_session_free (wrk, session);
950 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
952 session_req_worker_update_msg_t *msg;
955 msg = (session_req_worker_update_msg_t *) data;
956 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
960 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
964 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
966 session_worker_update_reply_msg_t *msg;
969 msg = (session_worker_update_reply_msg_t *) data;
970 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
973 VDBG (0, "unknown handle 0x%llx", msg->handle);
979 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
980 msg->tx_fifo, (uword) ~0, 0, s))
982 VDBG (0, "failed to attach fifos for %u", s->session_index);
986 s->session_state = VCL_STATE_UPDATED;
988 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
989 s->vpp_handle, wrk->wrk_index);
993 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
996 if (vcm->cfg.vpp_app_socket_api)
997 return vcl_sapi_recv_fds (wrk, fds, n_fds);
999 return vcl_bapi_recv_fds (wrk, fds, n_fds);
1003 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
1005 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
1006 session_app_add_segment_msg_t *msg;
1010 msg = (session_app_add_segment_msg_t *) data;
1014 vcl_api_recv_fd (wrk, &fd, 1);
1015 seg_type = SSVM_SEGMENT_MEMFD;
1018 segment_handle = msg->segment_handle;
1019 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
1021 clib_warning ("invalid segment handle");
1025 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
1028 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
1032 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
1037 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
1039 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
1040 vcl_segment_detach (msg->segment_handle);
1041 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
1045 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
1047 if (!vcm->wrk_rpc_fn)
1050 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
1054 vcl_session_transport_attr_reply_handler (vcl_worker_t *wrk, void *data)
1056 session_transport_attr_reply_msg_t *mp;
1058 if (!wrk->session_attr_op)
1061 mp = (session_transport_attr_reply_msg_t *) data;
1063 wrk->session_attr_op_rv = mp->retval;
1064 wrk->session_attr_op = 0;
1065 wrk->session_attr_rv = mp->attr;
1069 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
1071 session_disconnected_msg_t *disconnected_msg;
1072 session_connected_msg_t *connected_msg;
1073 session_reset_msg_t *reset_msg;
1074 session_event_t *ecpy;
1078 switch (e->event_type)
1080 case SESSION_IO_EVT_RX:
1081 case SESSION_IO_EVT_TX:
1082 s = vcl_session_get (wrk, e->session_index);
1083 if (!s || !vcl_session_is_open (s))
1085 vec_add1 (wrk->unhandled_evts_vector, *e);
1087 case SESSION_CTRL_EVT_BOUND:
1088 /* We can only wait for only one listen so not postponed */
1089 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1091 case SESSION_CTRL_EVT_ACCEPTED:
1092 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1093 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1095 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1097 ecpy->postponed = 1;
1098 ecpy->session_index = s->session_index;
1101 case SESSION_CTRL_EVT_CONNECTED:
1102 connected_msg = (session_connected_msg_t *) e->data;
1103 sid = vcl_session_connected_handler (wrk, connected_msg);
1104 if (!(s = vcl_session_get (wrk, sid)))
1106 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1108 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1110 ecpy->postponed = 1;
1111 ecpy->session_index = s->session_index;
1114 case SESSION_CTRL_EVT_DISCONNECTED:
1115 disconnected_msg = (session_disconnected_msg_t *) e->data;
1116 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1118 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1120 vec_add1 (wrk->unhandled_evts_vector, *e);
1123 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1125 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1128 case SESSION_CTRL_EVT_RESET:
1129 reset_msg = (session_reset_msg_t *) e->data;
1130 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1132 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1134 vec_add1 (wrk->unhandled_evts_vector, *e);
1137 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1139 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1140 vcl_session_unlisten_reply_handler (wrk, e->data);
1142 case SESSION_CTRL_EVT_MIGRATED:
1143 vcl_session_migrated_handler (wrk, e->data);
1145 case SESSION_CTRL_EVT_CLEANUP:
1146 vcl_session_cleanup_handler (wrk, e->data);
1148 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1149 vcl_session_req_worker_update_handler (wrk, e->data);
1151 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1152 vcl_session_worker_update_reply_handler (wrk, e->data);
1154 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1155 vcl_session_app_add_segment_handler (wrk, e->data);
1157 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1158 vcl_session_app_del_segment_handler (wrk, e->data);
1160 case SESSION_CTRL_EVT_APP_WRK_RPC:
1161 vcl_worker_rpc_handler (wrk, e->data);
1163 case SESSION_CTRL_EVT_TRANSPORT_ATTR_REPLY:
1164 vcl_session_transport_attr_reply_handler (wrk, e->data);
1167 clib_warning ("unhandled %u", e->event_type);
1173 vppcom_wait_for_session_state_change (u32 session_index,
1174 vcl_session_state_t state,
1177 vcl_worker_t *wrk = vcl_worker_get_current ();
1178 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1179 vcl_session_t *volatile session;
1180 svm_msg_q_msg_t msg;
1185 session = vcl_session_get (wrk, session_index);
1186 if (PREDICT_FALSE (!session))
1188 return VPPCOM_EBADFD;
1190 if (session->session_state == state)
1194 if (session->session_state == VCL_STATE_DETACHED)
1196 return VPPCOM_ECONNREFUSED;
1199 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1204 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1205 vcl_handle_mq_event (wrk, e);
1206 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1208 while (clib_time_now (&wrk->clib_time) < timeout);
1210 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1211 vppcom_session_state_str (state));
1212 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1214 return VPPCOM_ETIMEDOUT;
1218 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1220 vcl_session_state_t state;
1224 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1227 vec_foreach (sip, wrk->pending_session_wrk_updates)
1229 s = vcl_session_get (wrk, *sip);
1230 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1231 state = s->session_state;
1232 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1234 s->session_state = state;
1236 vec_reset_length (wrk->pending_session_wrk_updates);
1240 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1242 svm_msg_q_msg_t *msg;
1247 mq = wrk->app_event_queue;
1248 vcl_mq_dequeue_batch (wrk, mq, ~0);
1250 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1252 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1253 e = svm_msg_q_msg_data (mq, msg);
1254 vcl_handle_mq_event (wrk, e);
1255 svm_msg_q_free_msg (mq, msg);
1257 vec_reset_length (wrk->mq_msg_vector);
1258 vcl_handle_pending_wrk_updates (wrk);
1262 vcl_flush_mq_events (void)
1264 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1268 vppcom_session_unbind (u32 session_handle)
1270 vcl_worker_t *wrk = vcl_worker_get_current ();
1271 session_accepted_msg_t *accepted_msg;
1272 vcl_session_t *session = 0;
1273 vcl_session_msg_t *evt;
1275 session = vcl_session_get_w_handle (wrk, session_handle);
1277 return VPPCOM_EBADFD;
1279 /* Flush pending accept events, if any */
1280 while (clib_fifo_elts (session->accept_evts_fifo))
1282 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1283 accepted_msg = &evt->accepted_msg;
1284 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1285 vcl_send_session_accepted_reply (session->vpp_evt_q,
1286 accepted_msg->context,
1287 accepted_msg->handle, -1);
1289 clib_fifo_free (session->accept_evts_fifo);
1291 vcl_send_session_unlisten (wrk, session);
1293 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1294 session->vpp_handle);
1295 vcl_evt (VCL_EVT_UNBIND, session);
1297 session->vpp_handle = ~0;
1298 session->session_state = VCL_STATE_DISCONNECT;
1306 * Notify vpp of the disconnect and mark the worker as free. If we're the
1307 * last worker, do a full cleanup otherwise, since we're probably a forked
1308 * child, avoid syscalls as much as possible. We might've lost privileges.
1311 vppcom_app_exit (void)
1313 if (!pool_elts (vcm->workers))
1315 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1316 vcl_set_worker_index (~0);
1317 vcl_elog_stop (vcm);
1321 vcl_api_attach (void)
1323 if (vcm->cfg.vpp_app_socket_api)
1324 return vcl_sapi_attach ();
1326 return vcl_bapi_attach ();
1330 vcl_api_detach (vcl_worker_t * wrk)
1332 vcl_send_app_detach (wrk);
1334 if (vcm->cfg.vpp_app_socket_api)
1335 return vcl_sapi_detach (wrk);
1337 return vcl_bapi_disconnect_from_vpp ();
1341 * VPPCOM Public API functions
1344 vppcom_app_create (const char *app_name)
1346 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1351 VDBG (1, "already initialized");
1352 return VPPCOM_EEXIST;
1356 vppcom_cfg (&vcm->cfg);
1357 vcl_cfg = &vcm->cfg;
1359 vcm->main_cpu = pthread_self ();
1360 vcm->main_pid = getpid ();
1361 vcm->app_name = format (0, "%s", app_name);
1362 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1363 20 /* timeout in secs */ );
1364 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1365 clib_spinlock_init (&vcm->workers_lock);
1366 clib_rwlock_init (&vcm->segment_table_lock);
1367 atexit (vppcom_app_exit);
1368 vcl_elog_init (vcm);
1370 /* Allocate default worker */
1371 vcl_worker_alloc_and_init ();
1373 if ((rv = vcl_api_attach ()))
1376 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1377 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1383 vppcom_app_destroy (void)
1385 vcl_worker_t *wrk, *current_wrk;
1388 if (!pool_elts (vcm->workers))
1391 vcl_evt (VCL_EVT_DETACH, vcm);
1393 current_wrk = vcl_worker_get_current ();
1396 pool_foreach (wrk, vcm->workers) {
1397 if (current_wrk != wrk)
1398 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1402 vcl_api_detach (current_wrk);
1403 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1405 vcl_elog_stop (vcm);
1408 * Free the heap and fix vcm
1410 heap = clib_mem_get_heap ();
1411 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1413 vcm = &_vppcom_main;
1418 vppcom_session_create (u8 proto, u8 is_nonblocking)
1420 vcl_worker_t *wrk = vcl_worker_get_current ();
1421 vcl_session_t *session;
1423 session = vcl_session_alloc (wrk);
1425 session->session_type = proto;
1426 session->session_state = VCL_STATE_CLOSED;
1427 session->vpp_handle = ~0;
1428 session->is_dgram = vcl_proto_is_dgram (proto);
1431 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1433 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1434 is_nonblocking, session_index);
1436 VDBG (0, "created session %u", session->session_index);
1438 return vcl_session_handle (session);
1442 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1443 vcl_session_handle_t sh, u8 do_disconnect)
1447 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1449 if (s->flags & VCL_SESSION_F_IS_VEP)
1451 u32 next_sh = s->vep.next_sh;
1452 while (next_sh != ~0)
1454 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1455 if (PREDICT_FALSE (rv < 0))
1456 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1457 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1458 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1459 next_sh = s->vep.next_sh;
1464 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1466 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1468 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1469 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1470 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1475 VDBG (1, "session %u [0x%llx] disconnect skipped",
1476 s->session_index, s->vpp_handle);
1480 if (s->session_state == VCL_STATE_LISTEN)
1482 rv = vppcom_session_unbind (sh);
1483 if (PREDICT_FALSE (rv < 0))
1484 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1485 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1486 vppcom_retval_str (rv));
1489 else if (vcl_session_is_ready (s)
1490 || (vcl_session_is_connectable_listener (wrk, s)))
1492 rv = vppcom_session_disconnect (sh);
1493 if (PREDICT_FALSE (rv < 0))
1494 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1495 " rv %d (%s)", s->session_index, s->vpp_handle,
1496 rv, vppcom_retval_str (rv));
1498 else if (s->session_state == VCL_STATE_DISCONNECT)
1500 vcl_send_session_reset_reply (wrk, s, 0);
1502 else if (s->session_state == VCL_STATE_DETACHED)
1504 /* Should not happen. VPP cleaned up before app confirmed close */
1505 VDBG (0, "vpp freed session %d before close", s->session_index);
1509 s->session_state = VCL_STATE_CLOSED;
1511 /* Session is removed only after vpp confirms the disconnect */
1515 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1517 vcl_session_free (wrk, s);
1518 vcl_evt (VCL_EVT_CLOSE, s, rv);
1524 vppcom_session_close (uint32_t session_handle)
1526 vcl_worker_t *wrk = vcl_worker_get_current ();
1527 vcl_session_t *session;
1529 session = vcl_session_get_w_handle (wrk, session_handle);
1531 return VPPCOM_EBADFD;
1532 return vcl_session_cleanup (wrk, session, session_handle,
1533 1 /* do_disconnect */ );
1537 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1539 vcl_worker_t *wrk = vcl_worker_get_current ();
1540 vcl_session_t *session = 0;
1543 return VPPCOM_EINVAL;
1545 session = vcl_session_get_w_handle (wrk, session_handle);
1547 return VPPCOM_EBADFD;
1549 if (session->flags & VCL_SESSION_F_IS_VEP)
1551 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1552 session->session_index);
1553 return VPPCOM_EBADFD;
1556 session->transport.is_ip4 = ep->is_ip4;
1558 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1559 sizeof (ip4_address_t));
1561 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1562 sizeof (ip6_address_t));
1563 session->transport.lcl_port = ep->port;
1565 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1566 "proto %s", session->session_index, session_handle,
1567 session->transport.is_ip4 ? "IPv4" : "IPv6",
1568 format_ip46_address, &session->transport.lcl_ip,
1569 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1570 clib_net_to_host_u16 (session->transport.lcl_port),
1571 vppcom_proto_str (session->session_type));
1572 vcl_evt (VCL_EVT_BIND, session);
1574 if (session->session_type == VPPCOM_PROTO_UDP)
1575 vppcom_session_listen (session_handle, 10);
1581 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1583 vcl_worker_t *wrk = vcl_worker_get_current ();
1584 vcl_session_t *listen_session = 0;
1585 u64 listen_vpp_handle;
1588 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1589 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1590 return VPPCOM_EBADFD;
1592 if (q_len == 0 || q_len == ~0)
1593 q_len = vcm->cfg.listen_queue_size;
1595 listen_vpp_handle = listen_session->vpp_handle;
1596 if (listen_session->session_state == VCL_STATE_LISTEN)
1598 VDBG (0, "session %u [0x%llx]: already in listen state!",
1599 listen_sh, listen_vpp_handle);
1603 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1606 * Send listen request to vpp and wait for reply
1608 vcl_send_session_listen (wrk, listen_session);
1609 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1611 vcm->cfg.session_timeout);
1613 if (PREDICT_FALSE (rv))
1615 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1616 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1617 listen_sh, listen_session->vpp_handle, rv,
1618 vppcom_retval_str (rv));
1626 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1628 if (ls->flags & VCL_SESSION_F_IS_VEP)
1630 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1632 return VPPCOM_EBADFD;
1635 if ((ls->session_state != VCL_STATE_LISTEN)
1636 && (!vcl_session_is_connectable_listener (wrk, ls)))
1638 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1639 " (%s)", ls->vpp_handle, ls->session_state,
1640 vppcom_session_state_str (ls->session_state));
1641 return VPPCOM_EBADFD;
1647 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1649 if (!strcmp (proto_str, "TCP"))
1650 *proto = VPPCOM_PROTO_TCP;
1651 else if (!strcmp (proto_str, "tcp"))
1652 *proto = VPPCOM_PROTO_TCP;
1653 else if (!strcmp (proto_str, "UDP"))
1654 *proto = VPPCOM_PROTO_UDP;
1655 else if (!strcmp (proto_str, "udp"))
1656 *proto = VPPCOM_PROTO_UDP;
1657 else if (!strcmp (proto_str, "TLS"))
1658 *proto = VPPCOM_PROTO_TLS;
1659 else if (!strcmp (proto_str, "tls"))
1660 *proto = VPPCOM_PROTO_TLS;
1661 else if (!strcmp (proto_str, "QUIC"))
1662 *proto = VPPCOM_PROTO_QUIC;
1663 else if (!strcmp (proto_str, "quic"))
1664 *proto = VPPCOM_PROTO_QUIC;
1665 else if (!strcmp (proto_str, "DTLS"))
1666 *proto = VPPCOM_PROTO_DTLS;
1667 else if (!strcmp (proto_str, "dtls"))
1668 *proto = VPPCOM_PROTO_DTLS;
1675 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1678 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1679 vcl_worker_t *wrk = vcl_worker_get_current ();
1680 session_accepted_msg_t accepted_msg;
1681 vcl_session_t *listen_session = 0;
1682 vcl_session_t *client_session = 0;
1683 vcl_session_msg_t *evt;
1689 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1690 if (!listen_session)
1691 return VPPCOM_EBADFD;
1693 listen_session_index = listen_session->session_index;
1694 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1697 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1699 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1700 accept_flags = evt->flags;
1701 accepted_msg = evt->accepted_msg;
1705 is_nonblocking = vcl_session_has_attr (listen_session,
1706 VCL_SESS_ATTR_NONBLOCK);
1709 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1710 return VPPCOM_EAGAIN;
1712 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1713 vcl_worker_flush_mq_events (wrk);
1719 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1720 listen_session_index);
1721 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1722 return VPPCOM_ECONNABORTED;
1724 listen_session = vcl_session_get (wrk, listen_session_index);
1725 client_session = vcl_session_get (wrk, client_session_index);
1727 if (flags & O_NONBLOCK)
1728 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1730 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1731 " flags %d, is_nonblocking %u", listen_session->session_index,
1732 listen_session->vpp_handle, client_session_index,
1733 client_session->vpp_handle, flags,
1734 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1738 ep->is_ip4 = client_session->transport.is_ip4;
1739 ep->port = client_session->transport.rmt_port;
1740 if (client_session->transport.is_ip4)
1741 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1742 sizeof (ip4_address_t));
1744 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1745 sizeof (ip6_address_t));
1748 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1749 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1750 client_session_index, client_session->vpp_handle,
1751 format_ip46_address, &client_session->transport.rmt_ip,
1752 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1753 clib_net_to_host_u16 (client_session->transport.rmt_port),
1754 format_ip46_address, &client_session->transport.lcl_ip,
1755 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1756 clib_net_to_host_u16 (client_session->transport.lcl_port));
1757 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1758 client_session_index);
1761 * Session might have been closed already
1765 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1766 client_session->session_state = VCL_STATE_VPP_CLOSING;
1767 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1768 client_session->session_state = VCL_STATE_DISCONNECT;
1770 return vcl_session_handle (client_session);
1774 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1776 vcl_worker_t *wrk = vcl_worker_get_current ();
1777 vcl_session_t *session = 0;
1781 session = vcl_session_get_w_handle (wrk, session_handle);
1783 return VPPCOM_EBADFD;
1784 session_index = session->session_index;
1786 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1788 VDBG (0, "ERROR: cannot connect epoll session %u!",
1789 session->session_index);
1790 return VPPCOM_EBADFD;
1793 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1795 VDBG (0, "session handle %u [0x%llx]: session already "
1796 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1797 session_handle, session->vpp_handle,
1798 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1799 &session->transport.rmt_ip, session->transport.is_ip4 ?
1800 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1801 clib_net_to_host_u16 (session->transport.rmt_port),
1802 vppcom_proto_str (session->session_type), session->session_state,
1803 vppcom_session_state_str (session->session_state));
1807 /* Attempt to connect a connectionless listener */
1808 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1810 if (session->session_type != VPPCOM_PROTO_UDP)
1811 return VPPCOM_EINVAL;
1812 vcl_send_session_unlisten (wrk, session);
1813 session->session_state = VCL_STATE_CLOSED;
1816 session->transport.is_ip4 = server_ep->is_ip4;
1817 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1818 session->transport.rmt_port = server_ep->port;
1819 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1820 session->flags |= VCL_SESSION_F_CONNECTED;
1822 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1823 "port %d proto %s", session_handle,
1824 vppcom_session_state_str (session->session_state),
1825 session->transport.is_ip4 ? "IPv4" : "IPv6",
1826 format_ip46_address,
1827 &session->transport.rmt_ip, session->transport.is_ip4 ?
1828 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1829 clib_net_to_host_u16 (session->transport.rmt_port),
1830 vppcom_proto_str (session->session_type));
1832 vcl_send_session_connect (wrk, session);
1834 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1836 /* State set to STATE_UPDATED to ensure the session is not assumed
1837 * to be ready and to also allow the app to close it prior to vpp's
1838 * connected reply. */
1839 session->session_state = VCL_STATE_UPDATED;
1840 return VPPCOM_EINPROGRESS;
1844 * Wait for reply from vpp if blocking
1846 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1847 vcm->cfg.session_timeout);
1849 session = vcl_session_get (wrk, session_index);
1850 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1851 session->vpp_handle, rv ? "failed" : "succeeded");
1857 vppcom_session_stream_connect (uint32_t session_handle,
1858 uint32_t parent_session_handle)
1860 vcl_worker_t *wrk = vcl_worker_get_current ();
1861 vcl_session_t *session, *parent_session;
1862 u32 session_index, parent_session_index;
1865 session = vcl_session_get_w_handle (wrk, session_handle);
1867 return VPPCOM_EBADFD;
1868 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1869 if (!parent_session)
1870 return VPPCOM_EBADFD;
1872 session_index = session->session_index;
1873 parent_session_index = parent_session->session_index;
1874 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1876 VDBG (0, "ERROR: cannot connect epoll session %u!",
1877 session->session_index);
1878 return VPPCOM_EBADFD;
1881 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1883 VDBG (0, "session handle %u [0x%llx]: session already "
1884 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1885 session_handle, session->vpp_handle,
1886 parent_session_handle, parent_session->vpp_handle,
1887 vppcom_proto_str (session->session_type), session->session_state,
1888 vppcom_session_state_str (session->session_state));
1892 /* Connect to quic session specifics */
1893 session->transport.is_ip4 = parent_session->transport.is_ip4;
1894 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1895 session->transport.rmt_port = 0;
1896 session->parent_handle = parent_session->vpp_handle;
1898 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1899 session_handle, parent_session_handle, parent_session->vpp_handle);
1902 * Send connect request and wait for reply from vpp
1904 vcl_send_session_connect (wrk, session);
1905 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1906 vcm->cfg.session_timeout);
1908 session->listener_index = parent_session_index;
1909 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1911 parent_session->n_accepted_sessions++;
1913 session = vcl_session_get (wrk, session_index);
1914 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1915 session->vpp_handle, rv ? "failed" : "succeeded");
1921 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1924 vcl_worker_t *wrk = vcl_worker_get_current ();
1925 int rv, n_read = 0, is_nonblocking;
1926 vcl_session_t *s = 0;
1927 svm_fifo_t *rx_fifo;
1932 if (PREDICT_FALSE (!buf))
1933 return VPPCOM_EINVAL;
1935 s = vcl_session_get_w_handle (wrk, session_handle);
1936 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1937 return VPPCOM_EBADFD;
1939 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1941 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1942 s->session_index, s->vpp_handle, s->session_state,
1943 vppcom_session_state_str (s->session_state));
1944 return vcl_session_closed_error (s);
1947 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1948 is_ct = vcl_session_is_ct (s);
1949 mq = wrk->app_event_queue;
1950 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1951 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1953 if (svm_fifo_is_empty_cons (rx_fifo))
1957 if (vcl_session_is_closing (s))
1958 return vcl_session_closing_error (s);
1960 svm_fifo_unset_event (s->rx_fifo);
1961 svm_fifo_unset_event (rx_fifo);
1962 return VPPCOM_EWOULDBLOCK;
1964 while (svm_fifo_is_empty_cons (rx_fifo))
1966 if (vcl_session_is_closing (s))
1967 return vcl_session_closing_error (s);
1970 svm_fifo_unset_event (s->rx_fifo);
1971 svm_fifo_unset_event (rx_fifo);
1973 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1974 vcl_worker_flush_mq_events (wrk);
1981 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1983 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1988 if (svm_fifo_is_empty_cons (rx_fifo))
1991 svm_fifo_unset_event (s->rx_fifo);
1992 svm_fifo_unset_event (rx_fifo);
1993 if (!svm_fifo_is_empty_cons (rx_fifo)
1994 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1996 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1997 e->event_type = SESSION_IO_EVT_RX;
1998 e->session_index = s->session_index;
2001 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
2003 /* More data enqueued while reading. Try to drain it
2004 * or fill the buffer. Avoid doing that for dgrams */
2010 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
2012 svm_fifo_clear_deq_ntf (rx_fifo);
2013 app_send_io_evt_to_vpp (s->vpp_evt_q,
2014 s->rx_fifo->shr->master_session_index,
2015 SESSION_IO_EVT_RX, SVM_Q_WAIT);
2018 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
2019 s->vpp_handle, n_read, rx_fifo);
2025 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
2027 return (vppcom_session_read_internal (session_handle, buf, n, 0));
2031 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
2033 return (vppcom_session_read_internal (session_handle, buf, n, 1));
2037 vppcom_session_read_segments (uint32_t session_handle,
2038 vppcom_data_segment_t * ds, uint32_t n_segments,
2041 vcl_worker_t *wrk = vcl_worker_get_current ();
2042 int n_read = 0, is_nonblocking;
2043 vcl_session_t *s = 0;
2044 svm_fifo_t *rx_fifo;
2048 s = vcl_session_get_w_handle (wrk, session_handle);
2049 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2050 return VPPCOM_EBADFD;
2052 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2053 return vcl_session_closed_error (s);
2055 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2056 is_ct = vcl_session_is_ct (s);
2057 mq = wrk->app_event_queue;
2058 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2059 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2061 if (svm_fifo_is_empty_cons (rx_fifo))
2066 svm_fifo_unset_event (s->rx_fifo);
2067 svm_fifo_unset_event (rx_fifo);
2068 return VPPCOM_EWOULDBLOCK;
2070 while (svm_fifo_is_empty_cons (rx_fifo))
2072 if (vcl_session_is_closing (s))
2073 return vcl_session_closing_error (s);
2076 svm_fifo_unset_event (s->rx_fifo);
2077 svm_fifo_unset_event (rx_fifo);
2079 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2080 vcl_worker_flush_mq_events (wrk);
2084 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2085 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
2087 return VPPCOM_EAGAIN;
2089 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2092 svm_fifo_unset_event (s->rx_fifo);
2093 svm_fifo_unset_event (rx_fifo);
2094 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2095 && svm_fifo_set_event (rx_fifo)
2096 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2099 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2100 e->event_type = SESSION_IO_EVT_RX;
2101 e->session_index = s->session_index;
2105 s->rx_bytes_pending += n_read;
2110 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2112 vcl_worker_t *wrk = vcl_worker_get_current ();
2116 s = vcl_session_get_w_handle (wrk, session_handle);
2117 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2120 is_ct = vcl_session_is_ct (s);
2121 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2123 ASSERT (s->rx_bytes_pending < n_bytes);
2124 s->rx_bytes_pending -= n_bytes;
2128 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2130 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2132 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2138 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2139 size_t n, u8 is_flush, u8 is_dgram)
2141 int n_write, is_nonblocking;
2142 session_evt_type_t et;
2143 svm_fifo_t *tx_fifo;
2147 if (PREDICT_FALSE (!buf || n == 0))
2148 return VPPCOM_EINVAL;
2150 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2152 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2153 " session!", s->session_index, s->vpp_handle);
2154 return VPPCOM_EBADFD;
2157 if (PREDICT_FALSE (!vcl_session_is_open (s) ||
2158 s->flags & VCL_SESSION_F_SHUTDOWN))
2160 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2161 s->session_index, s->vpp_handle, s->session_state,
2162 vppcom_session_state_str (s->session_state));
2163 return vcl_session_closed_error (s);;
2166 is_ct = vcl_session_is_ct (s);
2167 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2168 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2170 mq = wrk->app_event_queue;
2171 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2175 return VPPCOM_EWOULDBLOCK;
2177 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2179 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2180 if (vcl_session_is_closing (s))
2181 return vcl_session_closing_error (s);
2183 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2184 vcl_worker_flush_mq_events (wrk);
2188 et = SESSION_IO_EVT_TX;
2189 if (is_flush && !is_ct)
2190 et = SESSION_IO_EVT_TX_FLUSH;
2193 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2194 s->vpp_evt_q, buf, n, et,
2195 0 /* do_evt */ , SVM_Q_WAIT);
2197 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2198 0 /* do_evt */ , SVM_Q_WAIT);
2200 if (svm_fifo_set_event (s->tx_fifo))
2201 app_send_io_evt_to_vpp (
2202 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2204 /* The underlying fifo segment can run out of memory */
2205 if (PREDICT_FALSE (n_write < 0))
2206 return VPPCOM_EAGAIN;
2208 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2209 s->vpp_handle, n_write);
2215 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2217 vcl_worker_t *wrk = vcl_worker_get_current ();
2220 s = vcl_session_get_w_handle (wrk, session_handle);
2221 if (PREDICT_FALSE (!s))
2222 return VPPCOM_EBADFD;
2224 return vppcom_session_write_inline (wrk, s, buf, n,
2225 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2229 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2231 vcl_worker_t *wrk = vcl_worker_get_current ();
2234 s = vcl_session_get_w_handle (wrk, session_handle);
2235 if (PREDICT_FALSE (!s))
2236 return VPPCOM_EBADFD;
2238 return vppcom_session_write_inline (wrk, s, buf, n,
2239 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2242 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2243 if (PREDICT_FALSE (!_s->rx_fifo)) \
2245 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2247 if (!vcl_session_is_ct (_s)) \
2249 svm_fifo_unset_event (_s->rx_fifo); \
2250 if (svm_fifo_is_empty (_s->rx_fifo)) \
2253 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2255 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2256 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2262 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2263 unsigned long n_bits, unsigned long *read_map,
2264 unsigned long *write_map,
2265 unsigned long *except_map, u32 * bits_set)
2267 session_disconnected_msg_t *disconnected_msg;
2268 session_connected_msg_t *connected_msg;
2272 switch (e->event_type)
2274 case SESSION_IO_EVT_RX:
2275 sid = e->session_index;
2276 s = vcl_session_get (wrk, sid);
2277 if (!s || !vcl_session_is_open (s))
2279 vcl_fifo_rx_evt_valid_or_break (s);
2280 if (sid < n_bits && read_map)
2282 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2286 case SESSION_IO_EVT_TX:
2287 sid = e->session_index;
2288 s = vcl_session_get (wrk, sid);
2289 if (!s || !vcl_session_is_open (s))
2291 if (sid < n_bits && write_map)
2293 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2297 case SESSION_CTRL_EVT_ACCEPTED:
2299 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2301 s = vcl_session_get (wrk, e->session_index);
2304 sid = s->session_index;
2305 if (sid < n_bits && read_map)
2307 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2311 case SESSION_CTRL_EVT_CONNECTED:
2314 connected_msg = (session_connected_msg_t *) e->data;
2315 sid = vcl_session_connected_handler (wrk, connected_msg);
2318 sid = e->session_index;
2319 if (sid == VCL_INVALID_SESSION_INDEX)
2321 if (sid < n_bits && write_map)
2323 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2327 case SESSION_CTRL_EVT_DISCONNECTED:
2328 disconnected_msg = (session_disconnected_msg_t *) e->data;
2329 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2332 sid = s->session_index;
2333 if (sid < n_bits && except_map)
2335 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2339 case SESSION_CTRL_EVT_RESET:
2340 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2341 if (sid < n_bits && except_map)
2343 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2347 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2348 vcl_session_unlisten_reply_handler (wrk, e->data);
2350 case SESSION_CTRL_EVT_MIGRATED:
2351 vcl_session_migrated_handler (wrk, e->data);
2353 case SESSION_CTRL_EVT_CLEANUP:
2354 vcl_session_cleanup_handler (wrk, e->data);
2356 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2357 vcl_session_worker_update_reply_handler (wrk, e->data);
2359 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2360 vcl_session_req_worker_update_handler (wrk, e->data);
2362 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2363 vcl_session_app_add_segment_handler (wrk, e->data);
2365 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2366 vcl_session_app_del_segment_handler (wrk, e->data);
2368 case SESSION_CTRL_EVT_APP_WRK_RPC:
2369 vcl_worker_rpc_handler (wrk, e->data);
2372 clib_warning ("unhandled: %u", e->event_type);
2378 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2379 unsigned long n_bits, unsigned long *read_map,
2380 unsigned long *write_map, unsigned long *except_map,
2381 double time_to_wait, u32 * bits_set)
2383 svm_msg_q_msg_t *msg;
2387 if (svm_msg_q_is_empty (mq))
2394 else if (time_to_wait < 0)
2395 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2398 if (svm_msg_q_timedwait (mq, time_to_wait))
2402 vcl_mq_dequeue_batch (wrk, mq, ~0);
2404 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2406 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2407 e = svm_msg_q_msg_data (mq, msg);
2408 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2409 except_map, bits_set);
2410 svm_msg_q_free_msg (mq, msg);
2412 vec_reset_length (wrk->mq_msg_vector);
2413 vcl_handle_pending_wrk_updates (wrk);
2418 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2419 vcl_si_set * read_map, vcl_si_set * write_map,
2420 vcl_si_set * except_map, double time_to_wait,
2423 double wait = 0, start = 0;
2427 wait = time_to_wait;
2428 start = clib_time_now (&wrk->clib_time);
2433 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2434 write_map, except_map, wait, bits_set);
2440 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2448 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2449 vcl_si_set * read_map, vcl_si_set * write_map,
2450 vcl_si_set * except_map, double time_to_wait,
2453 vcl_mq_evt_conn_t *mqc;
2454 int __clib_unused n_read;
2458 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2459 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2460 vec_len (wrk->mq_events), time_to_wait);
2461 for (i = 0; i < n_mq_evts; i++)
2463 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2464 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2465 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2466 except_map, 0, bits_set);
2469 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2473 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2474 vcl_si_set * except_map, double time_to_wait)
2476 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2477 vcl_worker_t *wrk = vcl_worker_get_current ();
2478 vcl_session_t *s = 0;
2481 if (n_bits && read_map)
2483 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2484 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2485 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2486 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2488 if (n_bits && write_map)
2490 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2491 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2492 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2493 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2495 if (n_bits && except_map)
2497 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2498 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2499 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2500 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2509 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2511 if (!(s = vcl_session_get (wrk, sid)))
2513 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2518 if (vcl_session_write_ready (s))
2520 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2525 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2526 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2534 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2536 if (!(s = vcl_session_get (wrk, sid)))
2538 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2543 if (vcl_session_read_ready (s))
2545 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2552 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2554 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2555 read_map, write_map, except_map, &bits_set);
2557 vec_reset_length (wrk->unhandled_evts_vector);
2559 if (vcm->cfg.use_mq_eventfd)
2560 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2561 time_to_wait, &bits_set);
2563 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2564 time_to_wait, &bits_set);
2570 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2572 vppcom_epoll_t *vep;
2573 u32 sh = vep_handle;
2576 if (VPPCOM_DEBUG <= 2)
2579 s = vcl_session_get_w_handle (wrk, vep_handle);
2580 if (PREDICT_FALSE (!s))
2582 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2585 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2587 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2591 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2594 " is_vep_session = %u\n"
2595 " next_sh = 0x%x (%u)\n"
2596 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2597 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2599 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2601 s = vcl_session_get_w_handle (wrk, sh);
2602 if (PREDICT_FALSE (!s))
2604 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2607 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2609 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2611 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2613 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2617 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2618 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2619 sh, s->vep.vep_sh, vep_handle);
2620 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2622 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2624 " next_sh = 0x%x (%u)\n"
2625 " prev_sh = 0x%x (%u)\n"
2626 " vep_sh = 0x%x (%u)\n"
2627 " ev.events = 0x%x\n"
2628 " ev.data.u64 = 0x%llx\n"
2631 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2632 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2633 vep->ev.data.u64, vep->et_mask);
2638 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2642 vppcom_epoll_create (void)
2644 vcl_worker_t *wrk = vcl_worker_get_current ();
2645 vcl_session_t *vep_session;
2647 vep_session = vcl_session_alloc (wrk);
2649 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2650 vep_session->vep.vep_sh = ~0;
2651 vep_session->vep.next_sh = ~0;
2652 vep_session->vep.prev_sh = ~0;
2653 vep_session->vpp_handle = ~0;
2655 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2656 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2658 return vcl_session_handle (vep_session);
2662 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2663 struct epoll_event *event)
2665 vcl_worker_t *wrk = vcl_worker_get_current ();
2666 vcl_session_t *vep_session;
2671 if (vep_handle == session_handle)
2673 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2674 return VPPCOM_EINVAL;
2677 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2678 if (PREDICT_FALSE (!vep_session))
2680 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2681 return VPPCOM_EBADFD;
2683 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2685 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2686 return VPPCOM_EINVAL;
2689 ASSERT (vep_session->vep.vep_sh == ~0);
2690 ASSERT (vep_session->vep.prev_sh == ~0);
2692 s = vcl_session_get_w_handle (wrk, session_handle);
2693 if (PREDICT_FALSE (!s))
2695 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2696 return VPPCOM_EBADFD;
2698 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2700 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2701 return VPPCOM_EINVAL;
2707 if (PREDICT_FALSE (!event))
2709 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2710 return VPPCOM_EINVAL;
2712 if (vep_session->vep.next_sh != ~0)
2714 vcl_session_t *next_session;
2715 next_session = vcl_session_get_w_handle (wrk,
2716 vep_session->vep.next_sh);
2717 if (PREDICT_FALSE (!next_session))
2719 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2720 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2721 return VPPCOM_EBADFD;
2723 ASSERT (next_session->vep.prev_sh == vep_handle);
2724 next_session->vep.prev_sh = session_handle;
2726 s->vep.next_sh = vep_session->vep.next_sh;
2727 s->vep.prev_sh = vep_handle;
2728 s->vep.vep_sh = vep_handle;
2729 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2731 s->flags &= ~VCL_SESSION_F_IS_VEP;
2732 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2733 vep_session->vep.next_sh = session_handle;
2735 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2736 if (txf && (event->events & EPOLLOUT))
2737 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2739 /* Generate EPOLLOUT if tx fifo not full */
2740 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2742 session_event_t e = { 0 };
2743 e.event_type = SESSION_IO_EVT_TX;
2744 e.session_index = s->session_index;
2745 vec_add1 (wrk->unhandled_evts_vector, e);
2747 /* Generate EPOLLIN if rx fifo has data */
2748 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2750 session_event_t e = { 0 };
2751 e.event_type = SESSION_IO_EVT_RX;
2752 e.session_index = s->session_index;
2753 vec_add1 (wrk->unhandled_evts_vector, e);
2755 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2756 vep_handle, session_handle, event->events, event->data.u64);
2757 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2761 if (PREDICT_FALSE (!event))
2763 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2767 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2769 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2773 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2775 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2776 session_handle, s->vep.vep_sh, vep_handle);
2781 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2782 if ((event->events & EPOLLOUT) &&
2783 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2785 session_event_t e = { 0 };
2786 e.event_type = SESSION_IO_EVT_TX;
2787 e.session_index = s->session_index;
2788 vec_add1 (wrk->unhandled_evts_vector, e);
2790 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2792 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2795 if (event->events & EPOLLOUT)
2796 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2798 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2800 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2801 vep_handle, session_handle, event->events, event->data.u64);
2805 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2807 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2811 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2813 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2814 session_handle, s->vep.vep_sh, vep_handle);
2819 if (s->vep.prev_sh == vep_handle)
2820 vep_session->vep.next_sh = s->vep.next_sh;
2823 vcl_session_t *prev_session;
2824 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2825 if (PREDICT_FALSE (!prev_session))
2827 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2828 s->vep.prev_sh, session_handle);
2829 return VPPCOM_EBADFD;
2831 ASSERT (prev_session->vep.next_sh == session_handle);
2832 prev_session->vep.next_sh = s->vep.next_sh;
2834 if (s->vep.next_sh != ~0)
2836 vcl_session_t *next_session;
2837 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2838 if (PREDICT_FALSE (!next_session))
2840 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2841 s->vep.next_sh, session_handle);
2842 return VPPCOM_EBADFD;
2844 ASSERT (next_session->vep.prev_sh == session_handle);
2845 next_session->vep.prev_sh = s->vep.prev_sh;
2848 memset (&s->vep, 0, sizeof (s->vep));
2849 s->vep.next_sh = ~0;
2850 s->vep.prev_sh = ~0;
2852 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2854 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2856 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2858 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2860 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2864 VDBG (0, "Invalid operation (%d)!", op);
2868 vep_verify_epoll_chain (wrk, vep_handle);
2875 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2876 struct epoll_event *events, u32 * num_ev)
2878 session_disconnected_msg_t *disconnected_msg;
2879 session_connected_msg_t *connected_msg;
2880 u32 sid = ~0, session_events;
2881 u64 session_evt_data = ~0;
2885 switch (e->event_type)
2887 case SESSION_IO_EVT_RX:
2888 sid = e->session_index;
2889 s = vcl_session_get (wrk, sid);
2890 if (vcl_session_is_closed (s))
2892 vcl_fifo_rx_evt_valid_or_break (s);
2893 session_events = s->vep.ev.events;
2894 if (!(EPOLLIN & s->vep.ev.events)
2895 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2898 events[*num_ev].events |= EPOLLIN;
2899 session_evt_data = s->vep.ev.data.u64;
2900 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2902 case SESSION_IO_EVT_TX:
2903 sid = e->session_index;
2904 s = vcl_session_get (wrk, sid);
2905 if (vcl_session_is_closed (s))
2907 session_events = s->vep.ev.events;
2908 if (!(EPOLLOUT & session_events))
2911 events[*num_ev].events |= EPOLLOUT;
2912 session_evt_data = s->vep.ev.data.u64;
2913 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2914 s->ct_tx_fifo : s->tx_fifo);
2916 case SESSION_CTRL_EVT_ACCEPTED:
2918 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2920 s = vcl_session_get (wrk, e->session_index);
2923 session_events = s->vep.ev.events;
2924 sid = s->session_index;
2925 if (!(EPOLLIN & session_events))
2928 events[*num_ev].events |= EPOLLIN;
2929 session_evt_data = s->vep.ev.data.u64;
2931 case SESSION_CTRL_EVT_CONNECTED:
2934 connected_msg = (session_connected_msg_t *) e->data;
2935 sid = vcl_session_connected_handler (wrk, connected_msg);
2938 sid = e->session_index;
2939 s = vcl_session_get (wrk, sid);
2940 if (vcl_session_is_closed (s))
2942 session_events = s->vep.ev.events;
2943 /* Generate EPOLLOUT because there's no connected event */
2944 if (!(EPOLLOUT & session_events))
2947 events[*num_ev].events |= EPOLLOUT;
2948 session_evt_data = s->vep.ev.data.u64;
2949 if (s->session_state == VCL_STATE_DETACHED)
2950 events[*num_ev].events |= EPOLLHUP;
2952 case SESSION_CTRL_EVT_DISCONNECTED:
2953 disconnected_msg = (session_disconnected_msg_t *) e->data;
2954 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2955 if (vcl_session_is_closed (s))
2957 sid = s->session_index;
2958 session_events = s->vep.ev.events;
2960 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2961 session_evt_data = s->vep.ev.data.u64;
2963 case SESSION_CTRL_EVT_RESET:
2964 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2965 s = vcl_session_get (wrk, sid);
2966 if (vcl_session_is_closed (s))
2968 session_events = s->vep.ev.events;
2970 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2971 session_evt_data = s->vep.ev.data.u64;
2973 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2974 vcl_session_unlisten_reply_handler (wrk, e->data);
2976 case SESSION_CTRL_EVT_MIGRATED:
2977 vcl_session_migrated_handler (wrk, e->data);
2979 case SESSION_CTRL_EVT_CLEANUP:
2980 vcl_session_cleanup_handler (wrk, e->data);
2982 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2983 vcl_session_req_worker_update_handler (wrk, e->data);
2985 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2986 vcl_session_worker_update_reply_handler (wrk, e->data);
2988 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2989 vcl_session_app_add_segment_handler (wrk, e->data);
2991 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2992 vcl_session_app_del_segment_handler (wrk, e->data);
2994 case SESSION_CTRL_EVT_APP_WRK_RPC:
2995 vcl_worker_rpc_handler (wrk, e->data);
2998 VDBG (0, "unhandled: %u", e->event_type);
3004 events[*num_ev].data.u64 = session_evt_data;
3005 if (EPOLLONESHOT & session_events)
3007 s = vcl_session_get (wrk, sid);
3008 s->vep.ev.events = 0;
3015 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
3016 struct epoll_event *events, u32 maxevents,
3017 double wait_for_time, u32 * num_ev)
3019 svm_msg_q_msg_t *msg;
3023 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
3024 goto handle_dequeued;
3026 if (svm_msg_q_is_empty (mq))
3030 else if (wait_for_time < 0)
3031 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
3034 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
3038 ASSERT (maxevents > *num_ev);
3039 vcl_mq_dequeue_batch (wrk, mq, ~0);
3042 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
3044 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
3045 e = svm_msg_q_msg_data (mq, msg);
3046 if (*num_ev < maxevents)
3047 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
3049 vcl_handle_mq_event (wrk, e);
3050 svm_msg_q_free_msg (mq, msg);
3052 vec_reset_length (wrk->mq_msg_vector);
3053 vcl_handle_pending_wrk_updates (wrk);
3058 vppcom_epoll_wait_condvar (vcl_worker_t *wrk, struct epoll_event *events,
3059 int maxevents, u32 n_evts, double timeout_ms)
3066 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3071 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3072 timeout_ms, &n_evts);
3073 if (n_evts || !timeout_ms)
3076 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3082 vppcom_epoll_wait_eventfd (vcl_worker_t *wrk, struct epoll_event *events,
3083 int maxevents, u32 n_evts, double timeout_ms)
3085 int __clib_unused n_read;
3086 vcl_mq_evt_conn_t *mqc;
3091 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3095 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3100 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3101 vec_len (wrk->mq_events), timeout_ms);
3104 VDBG (0, "epoll_wait error %u", errno);
3108 for (i = 0; i < n_mq_evts; i++)
3110 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3111 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3112 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3116 if (n_evts || !timeout_ms)
3119 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3125 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3126 int maxevents, double wait_for_time)
3128 vcl_worker_t *wrk = vcl_worker_get_current ();
3129 vcl_session_t *vep_session;
3133 if (PREDICT_FALSE (maxevents <= 0))
3135 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3136 return VPPCOM_EINVAL;
3139 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3141 return VPPCOM_EBADFD;
3143 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3145 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3146 return VPPCOM_EINVAL;
3149 memset (events, 0, sizeof (*events) * maxevents);
3151 if (vec_len (wrk->unhandled_evts_vector))
3153 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3155 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3157 if (n_evts == maxevents)
3159 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3163 vec_reset_length (wrk->unhandled_evts_vector);
3165 /* Request to only drain unhandled */
3166 if ((int) wait_for_time == -2)
3169 if (vcm->cfg.use_mq_eventfd)
3170 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3173 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3178 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3179 void *buffer, uint32_t * buflen)
3181 vcl_worker_t *wrk = vcl_worker_get_current ();
3182 u32 *flags = buffer, tmp_flags = 0;
3183 vppcom_endpt_t *ep = buffer;
3184 transport_endpt_attr_t tea;
3185 vcl_session_t *session;
3188 session = vcl_session_get_w_handle (wrk, session_handle);
3190 return VPPCOM_EBADFD;
3194 case VPPCOM_ATTR_GET_NREAD:
3195 rv = vcl_session_read_ready (session);
3196 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3200 case VPPCOM_ATTR_GET_NWRITE:
3201 rv = vcl_session_write_ready (session);
3202 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3206 case VPPCOM_ATTR_GET_FLAGS:
3207 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3211 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3213 *buflen = sizeof (*flags);
3214 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3215 "is_nonblocking = %u", session_handle, *flags,
3216 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3222 case VPPCOM_ATTR_SET_FLAGS:
3223 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3225 if (*flags & O_NONBLOCK)
3226 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3228 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3230 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3231 " is_nonblocking = %u", session_handle, *flags,
3232 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3238 case VPPCOM_ATTR_GET_PEER_ADDR:
3239 if (PREDICT_TRUE (buffer && buflen &&
3240 (*buflen >= sizeof (*ep)) && ep->ip))
3242 ep->is_ip4 = session->transport.is_ip4;
3243 ep->port = session->transport.rmt_port;
3244 if (session->transport.is_ip4)
3245 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3246 sizeof (ip4_address_t));
3248 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3249 sizeof (ip6_address_t));
3250 *buflen = sizeof (*ep);
3251 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3252 "addr = %U, port %u", session_handle, ep->is_ip4,
3253 format_ip46_address, &session->transport.rmt_ip,
3254 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3255 clib_net_to_host_u16 (ep->port));
3261 case VPPCOM_ATTR_GET_LCL_ADDR:
3262 if (PREDICT_TRUE (buffer && buflen &&
3263 (*buflen >= sizeof (*ep)) && ep->ip))
3265 ep->is_ip4 = session->transport.is_ip4;
3266 ep->port = session->transport.lcl_port;
3267 if (session->transport.is_ip4)
3268 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3269 sizeof (ip4_address_t));
3271 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3272 sizeof (ip6_address_t));
3273 *buflen = sizeof (*ep);
3274 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3275 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3276 &session->transport.lcl_ip,
3277 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3278 clib_net_to_host_u16 (ep->port));
3284 case VPPCOM_ATTR_SET_LCL_ADDR:
3285 if (PREDICT_TRUE (buffer && buflen &&
3286 (*buflen >= sizeof (*ep)) && ep->ip))
3288 session->transport.is_ip4 = ep->is_ip4;
3289 session->transport.lcl_port = ep->port;
3290 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3291 *buflen = sizeof (*ep);
3292 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3293 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3294 &session->transport.lcl_ip,
3295 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3296 clib_net_to_host_u16 (ep->port));
3302 case VPPCOM_ATTR_GET_LIBC_EPFD:
3303 rv = session->libc_epfd;
3304 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3307 case VPPCOM_ATTR_SET_LIBC_EPFD:
3308 if (PREDICT_TRUE (buffer && buflen &&
3309 (*buflen == sizeof (session->libc_epfd))))
3311 session->libc_epfd = *(int *) buffer;
3312 *buflen = sizeof (session->libc_epfd);
3314 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3315 session->libc_epfd, *buflen);
3321 case VPPCOM_ATTR_GET_PROTOCOL:
3322 if (buffer && buflen && (*buflen >= sizeof (int)))
3324 *(int *) buffer = session->session_type;
3325 *buflen = sizeof (int);
3327 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3328 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3334 case VPPCOM_ATTR_GET_LISTEN:
3335 if (buffer && buflen && (*buflen >= sizeof (int)))
3337 *(int *) buffer = vcl_session_has_attr (session,
3338 VCL_SESS_ATTR_LISTEN);
3339 *buflen = sizeof (int);
3341 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3348 case VPPCOM_ATTR_GET_ERROR:
3349 if (buffer && buflen && (*buflen >= sizeof (int)))
3351 *(int *) buffer = 0;
3352 *buflen = sizeof (int);
3354 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3355 *(int *) buffer, *buflen);
3361 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3362 if (buffer && buflen && (*buflen >= sizeof (u32)))
3366 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3368 svm_fifo_size (session->tx_fifo) :
3369 vcm->cfg.tx_fifo_size);
3370 *buflen = sizeof (u32);
3372 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3373 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3380 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3381 if (buffer && buflen && (*buflen == sizeof (u32)))
3384 session->sndbuf_size = *(u32 *) buffer;
3385 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3386 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3393 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3394 if (buffer && buflen && (*buflen >= sizeof (u32)))
3398 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3400 svm_fifo_size (session->rx_fifo) :
3401 vcm->cfg.rx_fifo_size);
3402 *buflen = sizeof (u32);
3404 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3405 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3411 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3412 if (buffer && buflen && (*buflen == sizeof (u32)))
3415 session->rcvbuf_size = *(u32 *) buffer;
3416 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3417 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3424 case VPPCOM_ATTR_GET_REUSEADDR:
3425 if (buffer && buflen && (*buflen >= sizeof (int)))
3428 *(int *) buffer = vcl_session_has_attr (session,
3429 VCL_SESS_ATTR_REUSEADDR);
3430 *buflen = sizeof (int);
3432 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3433 *(int *) buffer, *buflen);
3439 case VPPCOM_ATTR_SET_REUSEADDR:
3440 if (buffer && buflen && (*buflen == sizeof (int)) &&
3441 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3444 if (*(int *) buffer)
3445 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3447 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3449 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3450 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3457 case VPPCOM_ATTR_GET_REUSEPORT:
3458 if (buffer && buflen && (*buflen >= sizeof (int)))
3461 *(int *) buffer = vcl_session_has_attr (session,
3462 VCL_SESS_ATTR_REUSEPORT);
3463 *buflen = sizeof (int);
3465 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3466 *(int *) buffer, *buflen);
3472 case VPPCOM_ATTR_SET_REUSEPORT:
3473 if (buffer && buflen && (*buflen == sizeof (int)) &&
3474 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3477 if (*(int *) buffer)
3478 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3480 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3482 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3483 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3490 case VPPCOM_ATTR_GET_BROADCAST:
3491 if (buffer && buflen && (*buflen >= sizeof (int)))
3494 *(int *) buffer = vcl_session_has_attr (session,
3495 VCL_SESS_ATTR_BROADCAST);
3496 *buflen = sizeof (int);
3498 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3499 *(int *) buffer, *buflen);
3505 case VPPCOM_ATTR_SET_BROADCAST:
3506 if (buffer && buflen && (*buflen == sizeof (int)))
3509 if (*(int *) buffer)
3510 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3512 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3514 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3515 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3522 case VPPCOM_ATTR_GET_V6ONLY:
3523 if (buffer && buflen && (*buflen >= sizeof (int)))
3526 *(int *) buffer = vcl_session_has_attr (session,
3527 VCL_SESS_ATTR_V6ONLY);
3528 *buflen = sizeof (int);
3530 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3531 *(int *) buffer, *buflen);
3537 case VPPCOM_ATTR_SET_V6ONLY:
3538 if (buffer && buflen && (*buflen == sizeof (int)))
3541 if (*(int *) buffer)
3542 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3544 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3546 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3547 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3554 case VPPCOM_ATTR_GET_KEEPALIVE:
3555 if (buffer && buflen && (*buflen >= sizeof (int)))
3558 *(int *) buffer = vcl_session_has_attr (session,
3559 VCL_SESS_ATTR_KEEPALIVE);
3560 *buflen = sizeof (int);
3562 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3563 *(int *) buffer, *buflen);
3569 case VPPCOM_ATTR_SET_KEEPALIVE:
3570 if (buffer && buflen && (*buflen == sizeof (int)))
3573 if (*(int *) buffer)
3574 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3576 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3578 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3579 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3586 case VPPCOM_ATTR_GET_TCP_NODELAY:
3587 if (buffer && buflen && (*buflen >= sizeof (int)))
3590 *(int *) buffer = vcl_session_has_attr (session,
3591 VCL_SESS_ATTR_TCP_NODELAY);
3592 *buflen = sizeof (int);
3594 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3595 *(int *) buffer, *buflen);
3601 case VPPCOM_ATTR_SET_TCP_NODELAY:
3602 if (buffer && buflen && (*buflen == sizeof (int)))
3605 if (*(int *) buffer)
3606 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3608 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3610 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3611 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3618 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3619 if (buffer && buflen && (*buflen >= sizeof (int)))
3622 *(int *) buffer = vcl_session_has_attr (session,
3623 VCL_SESS_ATTR_TCP_KEEPIDLE);
3624 *buflen = sizeof (int);
3626 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3627 *(int *) buffer, *buflen);
3633 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3634 if (buffer && buflen && (*buflen == sizeof (int)))
3637 if (*(int *) buffer)
3638 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3640 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3642 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3643 vcl_session_has_attr (session,
3644 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3650 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3651 if (buffer && buflen && (*buflen >= sizeof (int)))
3654 *(int *) buffer = vcl_session_has_attr (session,
3655 VCL_SESS_ATTR_TCP_KEEPINTVL);
3656 *buflen = sizeof (int);
3658 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3659 *(int *) buffer, *buflen);
3665 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3666 if (buffer && buflen && (*buflen == sizeof (int)))
3669 if (*(int *) buffer)
3670 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3672 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3674 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3675 vcl_session_has_attr (session,
3676 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3682 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3683 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3689 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
3690 tea.mss = *(u32 *) buffer;
3691 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
3692 rv = VPPCOM_ENOPROTOOPT;
3696 *(u32 *) buffer = tea.mss;
3697 *buflen = sizeof (int);
3700 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
3704 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3705 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3711 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
3712 tea.mss = *(u32 *) buffer;
3713 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
3714 rv = VPPCOM_ENOPROTOOPT;
3716 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
3720 case VPPCOM_ATTR_SET_SHUT:
3721 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3722 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3723 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3724 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3727 case VPPCOM_ATTR_GET_SHUT:
3728 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3730 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3733 *(int *) buffer = SHUT_RD;
3734 else if (tmp_flags == 2)
3735 *(int *) buffer = SHUT_WR;
3736 else if (tmp_flags == 3)
3737 *(int *) buffer = SHUT_RDWR;
3738 *buflen = sizeof (int);
3741 case VPPCOM_ATTR_SET_CONNECTED:
3742 session->flags |= VCL_SESSION_F_CONNECTED;
3745 case VPPCOM_ATTR_SET_CKPAIR:
3746 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
3747 !vcl_session_has_crypto (session))
3752 if (!session->ext_config)
3754 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_CRYPTO,
3755 sizeof (transport_endpt_ext_cfg_t));
3757 else if (session->ext_config->type != TRANSPORT_ENDPT_EXT_CFG_CRYPTO)
3763 session->ext_config->crypto.ckpair_index = *(uint32_t *) buffer;
3766 case VPPCOM_ATTR_SET_VRF:
3767 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3772 session->vrf = *(u32 *) buffer;
3775 case VPPCOM_ATTR_GET_VRF:
3776 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3781 *(u32 *) buffer = session->vrf;
3782 *buflen = sizeof (u32);
3785 case VPPCOM_ATTR_GET_DOMAIN:
3786 if (!(buffer && buflen && (*buflen >= sizeof (int))))
3792 if (session->transport.is_ip4)
3793 *(int *) buffer = AF_INET;
3795 *(int *) buffer = AF_INET6;
3796 *buflen = sizeof (int);
3798 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
3802 case VPPCOM_ATTR_SET_ENDPT_EXT_CFG:
3803 if (!(buffer && buflen && (*buflen > 0)))
3808 if (session->ext_config)
3813 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_NONE,
3814 *buflen + sizeof (u32));
3815 clib_memcpy (session->ext_config->data, buffer, *buflen);
3816 session->ext_config->len = *buflen;
3828 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3829 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3831 vcl_worker_t *wrk = vcl_worker_get_current ();
3832 vcl_session_t *session;
3836 rv = vppcom_session_read (session_handle, buffer, buflen);
3837 else if (flags & MSG_PEEK)
3838 rv = vppcom_session_peek (session_handle, buffer, buflen);
3841 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3842 return VPPCOM_EAFNOSUPPORT;
3847 session = vcl_session_get_w_handle (wrk, session_handle);
3848 if (session->transport.is_ip4)
3849 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3850 sizeof (ip4_address_t));
3852 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3853 sizeof (ip6_address_t));
3854 ep->is_ip4 = session->transport.is_ip4;
3855 ep->port = session->transport.rmt_port;
3862 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3863 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3865 vcl_worker_t *wrk = vcl_worker_get_current ();
3868 s = vcl_session_get_w_handle (wrk, session_handle);
3870 return VPPCOM_EBADFD;
3873 return VPPCOM_EINVAL;
3877 if (!vcl_session_is_cl (s))
3878 return VPPCOM_EINVAL;
3880 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3881 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3883 u32 session_index = s->session_index;
3884 f64 timeout = vcm->cfg.session_timeout;
3887 vcl_send_session_connect (wrk, s);
3888 rv = vppcom_wait_for_session_state_change (session_index,
3893 s = vcl_session_get (wrk, session_index);
3896 s->transport.is_ip4 = ep->is_ip4;
3897 s->transport.rmt_port = ep->port;
3898 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3903 // TBD check the flags and do the right thing
3904 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3907 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3908 s->is_dgram ? 1 : 0));
3912 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3914 vcl_worker_t *wrk = vcl_worker_get_current ();
3915 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3916 u32 i, keep_trying = 1;
3917 svm_msg_q_msg_t msg;
3921 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3924 return VPPCOM_EFAULT;
3928 vcl_session_t *session;
3930 /* Dequeue all events and drop all unhandled io events */
3931 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3933 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3934 vcl_handle_mq_event (wrk, e);
3935 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3937 vec_reset_length (wrk->unhandled_evts_vector);
3939 for (i = 0; i < n_sids; i++)
3941 session = vcl_session_get (wrk, vp[i].sh);
3944 vp[i].revents = POLLHUP;
3951 if (POLLIN & vp[i].events)
3953 rv = vcl_session_read_ready (session);
3956 vp[i].revents |= POLLIN;
3963 case VPPCOM_ECONNRESET:
3964 vp[i].revents = POLLHUP;
3968 vp[i].revents = POLLERR;
3975 if (POLLOUT & vp[i].events)
3977 rv = vcl_session_write_ready (session);
3980 vp[i].revents |= POLLOUT;
3987 case VPPCOM_ECONNRESET:
3988 vp[i].revents = POLLHUP;
3992 vp[i].revents = POLLERR;
3999 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
4001 vp[i].revents = POLLNVAL;
4005 if (wait_for_time != -1)
4006 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
4008 while ((num_ev == 0) && keep_trying);
4014 vppcom_mq_epoll_fd (void)
4016 vcl_worker_t *wrk = vcl_worker_get_current ();
4017 return wrk->mqs_epfd;
4021 vppcom_session_index (vcl_session_handle_t session_handle)
4023 return session_handle & 0xFFFFFF;
4027 vppcom_session_worker (vcl_session_handle_t session_handle)
4029 return session_handle >> 24;
4033 vppcom_worker_register (void)
4035 if (!vcl_worker_alloc_and_init ())
4036 return VPPCOM_EEXIST;
4038 if (vcl_worker_register_with_vpp ())
4039 return VPPCOM_EEXIST;
4045 vppcom_worker_unregister (void)
4047 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
4048 vcl_set_worker_index (~0);
4052 vppcom_worker_index_set (int index)
4054 vcl_set_worker_index (index);
4058 vppcom_worker_index (void)
4060 return vcl_get_worker_index ();
4064 vppcom_worker_mqs_epfd (void)
4066 vcl_worker_t *wrk = vcl_worker_get_current ();
4067 if (!vcm->cfg.use_mq_eventfd)
4069 return wrk->mqs_epfd;
4073 vppcom_session_is_connectable_listener (uint32_t session_handle)
4075 vcl_session_t *session;
4076 vcl_worker_t *wrk = vcl_worker_get_current ();
4077 session = vcl_session_get_w_handle (wrk, session_handle);
4079 return VPPCOM_EBADFD;
4080 return vcl_session_is_connectable_listener (wrk, session);
4084 vppcom_session_listener (uint32_t session_handle)
4086 vcl_worker_t *wrk = vcl_worker_get_current ();
4087 vcl_session_t *listen_session, *session;
4088 session = vcl_session_get_w_handle (wrk, session_handle);
4090 return VPPCOM_EBADFD;
4091 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
4092 return VPPCOM_EBADFD;
4093 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4094 if (!listen_session)
4095 return VPPCOM_EBADFD;
4096 return vcl_session_handle (listen_session);
4100 vppcom_session_n_accepted (uint32_t session_handle)
4102 vcl_worker_t *wrk = vcl_worker_get_current ();
4103 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4105 return VPPCOM_EBADFD;
4106 return session->n_accepted_sessions;
4110 vppcom_proto_str (vppcom_proto_t proto)
4112 char const *proto_str;
4116 case VPPCOM_PROTO_TCP:
4119 case VPPCOM_PROTO_UDP:
4122 case VPPCOM_PROTO_TLS:
4125 case VPPCOM_PROTO_QUIC:
4128 case VPPCOM_PROTO_DTLS:
4132 proto_str = "UNKNOWN";
4139 vppcom_retval_str (int retval)
4150 st = "VPPCOM_EAGAIN";
4154 st = "VPPCOM_EFAULT";
4158 st = "VPPCOM_ENOMEM";
4162 st = "VPPCOM_EINVAL";
4166 st = "VPPCOM_EBADFD";
4169 case VPPCOM_EAFNOSUPPORT:
4170 st = "VPPCOM_EAFNOSUPPORT";
4173 case VPPCOM_ECONNABORTED:
4174 st = "VPPCOM_ECONNABORTED";
4177 case VPPCOM_ECONNRESET:
4178 st = "VPPCOM_ECONNRESET";
4181 case VPPCOM_ENOTCONN:
4182 st = "VPPCOM_ENOTCONN";
4185 case VPPCOM_ECONNREFUSED:
4186 st = "VPPCOM_ECONNREFUSED";
4189 case VPPCOM_ETIMEDOUT:
4190 st = "VPPCOM_ETIMEDOUT";
4194 st = "UNKNOWN_STATE";
4202 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4204 if (vcm->cfg.vpp_app_socket_api)
4206 clib_warning ("not supported");
4207 return VPPCOM_EINVAL;
4209 return vcl_bapi_add_cert_key_pair (ckpair);
4213 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4215 if (vcm->cfg.vpp_app_socket_api)
4217 clib_warning ("not supported");
4218 return VPPCOM_EINVAL;
4220 return vcl_bapi_del_cert_key_pair (ckpair_index);
4224 * fd.io coding-style-patch-verification: ON
4227 * eval: (c-set-style "gnu")