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_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
265 app_session_evt_t _app_evt, *app_evt = &_app_evt;
266 session_disconnect_msg_t *mp;
269 /* Send to thread that owns the session */
271 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
272 mp = (session_disconnect_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_app_detach (vcl_worker_t * wrk)
282 app_session_evt_t _app_evt, *app_evt = &_app_evt;
283 session_app_detach_msg_t *mp;
286 mq = vcl_worker_ctrl_mq (wrk);
287 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
288 mp = (session_app_detach_msg_t *) app_evt->evt->data;
289 memset (mp, 0, sizeof (*mp));
290 mp->client_index = wrk->api_client_handle;
291 app_send_ctrl_evt_to_vpp (mq, app_evt);
295 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
296 session_handle_t handle, int retval)
298 app_session_evt_t _app_evt, *app_evt = &_app_evt;
299 session_accepted_reply_msg_t *rmp;
300 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
301 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
302 rmp->handle = handle;
303 rmp->context = context;
304 rmp->retval = retval;
305 app_send_ctrl_evt_to_vpp (mq, app_evt);
309 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
312 app_session_evt_t _app_evt, *app_evt = &_app_evt;
313 session_disconnected_reply_msg_t *rmp;
314 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
315 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
316 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
317 rmp->handle = s->vpp_handle;
318 rmp->context = wrk->api_client_handle;
319 rmp->retval = retval;
320 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
324 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
327 app_session_evt_t _app_evt, *app_evt = &_app_evt;
328 session_reset_reply_msg_t *rmp;
329 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
330 SESSION_CTRL_EVT_RESET_REPLY);
331 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
332 rmp->handle = s->vpp_handle;
333 rmp->context = wrk->api_client_handle;
334 rmp->retval = retval;
335 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
339 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
342 app_session_evt_t _app_evt, *app_evt = &_app_evt;
343 session_worker_update_msg_t *mp;
345 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
346 SESSION_CTRL_EVT_WORKER_UPDATE);
347 mp = (session_worker_update_msg_t *) app_evt->evt->data;
348 mp->client_index = wrk->api_client_handle;
349 mp->handle = s->vpp_handle;
350 mp->req_wrk_index = wrk->vpp_wrk_index;
351 mp->wrk_index = wrk_index;
352 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
356 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
358 app_session_evt_t _app_evt, *app_evt = &_app_evt;
359 session_app_wrk_rpc_msg_t *mp;
360 vcl_worker_t *dst_wrk, *wrk;
364 if (data_len > sizeof (mp->data))
367 clib_spinlock_lock (&vcm->workers_lock);
369 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
373 wrk = vcl_worker_get_current ();
374 mq = vcl_worker_ctrl_mq (wrk);
375 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
376 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
377 mp->client_index = wrk->api_client_handle;
378 mp->wrk_index = dst_wrk->vpp_wrk_index;
379 clib_memcpy (mp->data, data, data_len);
380 app_send_ctrl_evt_to_vpp (mq, app_evt);
384 clib_spinlock_unlock (&vcm->workers_lock);
389 vcl_session_transport_attr (vcl_worker_t *wrk, vcl_session_t *s, u8 is_get,
390 transport_endpt_attr_t *attr)
392 app_session_evt_t _app_evt, *app_evt = &_app_evt;
393 session_transport_attr_msg_t *mp;
397 ASSERT (!wrk->session_attr_op);
398 wrk->session_attr_op = 1;
399 wrk->session_attr_op_rv = -1;
402 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_TRANSPORT_ATTR);
403 mp = (session_transport_attr_msg_t *) app_evt->evt->data;
404 memset (mp, 0, sizeof (*mp));
405 mp->client_index = wrk->api_client_handle;
406 mp->handle = s->vpp_handle;
409 app_send_ctrl_evt_to_vpp (mq, app_evt);
411 timeout = clib_time_now (&wrk->clib_time) + 1;
413 while (wrk->session_attr_op && clib_time_now (&wrk->clib_time) < timeout)
414 vcl_flush_mq_events ();
416 if (!wrk->session_attr_op_rv && is_get)
417 *attr = wrk->session_attr_rv;
419 wrk->session_attr_op = 0;
421 return wrk->session_attr_op_rv;
425 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
428 vcl_session_t *session, *listen_session;
431 session = vcl_session_alloc (wrk);
433 listen_session = vcl_session_get (wrk, ls_index);
434 if (listen_session->vpp_handle != mp->listener_handle)
436 VDBG (0, "ERROR: listener handle %lu does not match session %u",
437 mp->listener_handle, ls_index);
441 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
443 mp->vpp_event_queue_address, 0, session))
445 VDBG (0, "failed to attach fifos for %u", session->session_index);
449 session->vpp_handle = mp->handle;
450 session->session_state = VCL_STATE_READY;
451 session->transport.rmt_port = mp->rmt.port;
452 session->transport.is_ip4 = mp->rmt.is_ip4;
453 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
454 sizeof (ip46_address_t));
456 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
457 session->transport.lcl_port = listen_session->transport.lcl_port;
458 session->transport.lcl_ip = listen_session->transport.lcl_ip;
459 session->session_type = listen_session->session_type;
460 session->is_dgram = vcl_proto_is_dgram (session->session_type);
461 session->listener_index = listen_session->session_index;
462 listen_session->n_accepted_sessions++;
464 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
465 " port %d queue %p!", session->session_index, mp->handle,
466 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
467 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
468 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
469 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
471 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
472 session->vpp_handle, 0);
474 return session->session_index;
477 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
478 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
479 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
480 VNET_API_ERROR_INVALID_ARGUMENT);
481 vcl_session_free (wrk, session);
482 return VCL_INVALID_SESSION_INDEX;
486 vcl_session_connected_handler (vcl_worker_t * wrk,
487 session_connected_msg_t * mp)
489 vcl_session_t *session = 0;
492 session_index = mp->context;
493 session = vcl_session_get (wrk, session_index);
496 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
497 mp->handle, session_index);
498 return VCL_INVALID_SESSION_INDEX;
502 VDBG (0, "ERROR: session index %u: connect failed! %U",
503 session_index, format_session_error, mp->retval);
504 session->session_state = VCL_STATE_DETACHED;
505 session->vpp_handle = mp->handle;
506 return session_index;
509 session->vpp_handle = mp->handle;
511 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
513 mp->vpp_event_queue_address, 0, session))
515 VDBG (0, "failed to attach fifos for %u", session->session_index);
516 session->session_state = VCL_STATE_DETACHED;
517 vcl_send_session_disconnect (wrk, session);
518 return session_index;
523 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
524 mp->ct_tx_fifo, (uword) ~0, 1, session))
526 VDBG (0, "failed to attach ct fifos for %u", session->session_index);
527 session->session_state = VCL_STATE_DETACHED;
528 vcl_send_session_disconnect (wrk, session);
529 return session_index;
533 session->transport.is_ip4 = mp->lcl.is_ip4;
534 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
535 sizeof (session->transport.lcl_ip));
536 session->transport.lcl_port = mp->lcl.port;
538 /* Application closed session before connect reply */
539 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
540 && session->session_state == VCL_STATE_CLOSED)
541 vcl_send_session_disconnect (wrk, session);
543 session->session_state = VCL_STATE_READY;
545 /* Add it to lookup table */
546 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
548 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
549 " refcnt %d", session_index, mp->handle, session->rx_fifo,
550 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
552 return session_index;
556 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
558 vcl_session_msg_t *accepted_msg;
561 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
563 accepted_msg = &session->accept_evts_fifo[i];
564 if (accepted_msg->accepted_msg.handle == handle)
566 accepted_msg->flags |= flags;
574 vcl_session_reset_handler (vcl_worker_t * wrk,
575 session_reset_msg_t * reset_msg)
577 vcl_session_t *session;
580 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
581 session = vcl_session_get (wrk, sid);
584 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
585 return VCL_INVALID_SESSION_INDEX;
588 /* Caught a reset before actually accepting the session */
589 if (session->session_state == VCL_STATE_LISTEN)
592 if (!vcl_flag_accepted_session (session, reset_msg->handle,
593 VCL_ACCEPTED_F_RESET))
594 VDBG (0, "session was not accepted!");
595 return VCL_INVALID_SESSION_INDEX;
598 if (session->session_state != VCL_STATE_CLOSED)
599 session->session_state = VCL_STATE_DISCONNECT;
600 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
605 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
607 vcl_session_t *session;
608 u32 sid = mp->context;
610 session = vcl_session_get (wrk, sid);
613 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
614 format_session_error, mp->retval);
617 session->session_state = VCL_STATE_DETACHED;
618 session->vpp_handle = mp->handle;
623 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
625 return VCL_INVALID_SESSION_INDEX;
629 session->vpp_handle = mp->handle;
630 session->transport.is_ip4 = mp->lcl_is_ip4;
631 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
632 sizeof (ip46_address_t));
633 session->transport.lcl_port = mp->lcl_port;
634 vcl_session_table_add_listener (wrk, mp->handle, sid);
635 session->session_state = VCL_STATE_LISTEN;
637 if (vcl_session_is_cl (session))
639 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
640 mp->tx_fifo, mp->vpp_evt_q, 0, session))
642 VDBG (0, "failed to attach fifos for %u", session->session_index);
643 session->session_state = VCL_STATE_DETACHED;
644 return VCL_INVALID_SESSION_INDEX;
648 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
653 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
655 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
658 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
661 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
664 if (s->session_state != VCL_STATE_DISCONNECT)
666 /* Connected udp listener */
667 if (s->session_type == VPPCOM_PROTO_UDP
668 && s->session_state == VCL_STATE_CLOSED)
671 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
676 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
677 s->session_index, mp->handle, format_session_error, mp->retval);
679 if (mp->context != wrk->wrk_index)
680 VDBG (0, "wrong context");
682 vcl_session_table_del_vpp_handle (wrk, mp->handle);
683 vcl_session_free (wrk, s);
687 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
689 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
693 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
696 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
700 /* Only validate if a value is provided */
701 if (mp->segment_handle != SESSION_INVALID_HANDLE)
703 fs_index = vcl_segment_table_lookup (mp->segment_handle);
704 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
706 VDBG (0, "segment %lx for session %u is not mounted!",
707 mp->segment_handle, s->session_index);
708 s->session_state = VCL_STATE_DETACHED;
713 s->vpp_handle = mp->new_handle;
715 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
716 mp->vpp_thread_index, &s->vpp_evt_q);
718 vcl_session_table_del_vpp_handle (wrk, mp->handle);
719 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
721 /* Generate new tx event if we have outstanding data */
722 if (svm_fifo_has_event (s->tx_fifo))
723 app_send_io_evt_to_vpp (s->vpp_evt_q,
724 s->tx_fifo->shr->master_session_index,
725 SESSION_IO_EVT_TX, SVM_Q_WAIT);
727 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
728 mp->vpp_thread_index, mp->new_handle);
731 static vcl_session_t *
732 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
734 vcl_session_msg_t *vcl_msg;
735 vcl_session_t *session;
737 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
738 if (PREDICT_FALSE (session != 0))
739 VWRN ("session overlap handle %lu state %u!", msg->handle,
740 session->session_state);
742 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
745 VERR ("couldn't find listen session: listener handle %llx",
746 msg->listener_handle);
750 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
752 vcl_msg->accepted_msg = *msg;
753 /* Session handle points to listener until fully accepted by app */
754 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
759 static vcl_session_t *
760 vcl_session_disconnected_handler (vcl_worker_t * wrk,
761 session_disconnected_msg_t * msg)
763 vcl_session_t *session;
765 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
768 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
772 /* Late disconnect notification on a session that has been closed */
773 if (session->session_state == VCL_STATE_CLOSED)
776 /* Caught a disconnect before actually accepting the session */
777 if (session->session_state == VCL_STATE_LISTEN)
779 if (!vcl_flag_accepted_session (session, msg->handle,
780 VCL_ACCEPTED_F_CLOSED))
781 VDBG (0, "session was not accepted!");
785 /* If not already reset change state */
786 if (session->session_state != VCL_STATE_DISCONNECT)
787 session->session_state = VCL_STATE_VPP_CLOSING;
793 vppcom_session_disconnect (u32 session_handle)
795 vcl_worker_t *wrk = vcl_worker_get_current ();
796 vcl_session_t *session, *listen_session;
797 vcl_session_state_t state;
800 session = vcl_session_get_w_handle (wrk, session_handle);
802 return VPPCOM_EBADFD;
804 vpp_handle = session->vpp_handle;
805 state = session->session_state;
807 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
808 vpp_handle, state, vppcom_session_state_str (state));
810 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
812 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
813 return VPPCOM_EBADFD;
816 if (state == VCL_STATE_VPP_CLOSING)
818 vcl_send_session_disconnected_reply (wrk, session, 0);
819 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
820 session->session_index, vpp_handle);
824 /* Session doesn't have an event queue yet. Probably a non-blocking
825 * connect. Wait for the reply */
826 if (PREDICT_FALSE (!session->vpp_evt_q))
829 VDBG (1, "session %u [0x%llx]: sending disconnect...",
830 session->session_index, vpp_handle);
831 vcl_send_session_disconnect (wrk, session);
834 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
836 listen_session = vcl_session_get (wrk, session->listener_index);
837 listen_session->n_accepted_sessions--;
844 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
846 session_cleanup_msg_t *msg;
847 vcl_session_t *session;
849 msg = (session_cleanup_msg_t *) data;
850 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
853 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
857 if (msg->type == SESSION_CLEANUP_TRANSPORT)
859 /* Transport was cleaned up before we confirmed close. Probably the
860 * app is still waiting for some data that cannot be delivered.
861 * Confirm close to make sure everything is cleaned up.
862 * Move to undetermined state to ensure that the session is not
863 * removed before both vpp and the app cleanup.
864 * - If the app closes first, the session is moved to CLOSED state
865 * and the session cleanup notification from vpp removes the
867 * - If vpp cleans up the session first, the session is moved to
868 * DETACHED state lower and subsequently the close from the app
871 if (session->session_state == VCL_STATE_VPP_CLOSING)
873 vppcom_session_disconnect (vcl_session_handle (session));
874 session->session_state = VCL_STATE_UPDATED;
876 else if (session->session_state == VCL_STATE_DISCONNECT)
878 vcl_send_session_reset_reply (wrk, session, 0);
879 session->session_state = VCL_STATE_UPDATED;
884 vcl_session_table_del_vpp_handle (wrk, msg->handle);
885 /* Should not happen. App did not close the connection so don't free it. */
886 if (session->session_state != VCL_STATE_CLOSED)
888 VDBG (0, "app did not close session %d", session->session_index);
889 session->session_state = VCL_STATE_DETACHED;
890 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
893 vcl_session_free (wrk, session);
897 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
899 session_req_worker_update_msg_t *msg;
902 msg = (session_req_worker_update_msg_t *) data;
903 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
907 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
911 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
913 session_worker_update_reply_msg_t *msg;
916 msg = (session_worker_update_reply_msg_t *) data;
917 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
920 VDBG (0, "unknown handle 0x%llx", msg->handle);
926 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
927 msg->tx_fifo, (uword) ~0, 0, s))
929 VDBG (0, "failed to attach fifos for %u", s->session_index);
933 s->session_state = VCL_STATE_UPDATED;
935 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
936 s->vpp_handle, wrk->wrk_index);
940 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
943 if (vcm->cfg.vpp_app_socket_api)
944 return vcl_sapi_recv_fds (wrk, fds, n_fds);
946 return vcl_bapi_recv_fds (wrk, fds, n_fds);
950 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
952 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
953 session_app_add_segment_msg_t *msg;
957 msg = (session_app_add_segment_msg_t *) data;
961 vcl_api_recv_fd (wrk, &fd, 1);
962 seg_type = SSVM_SEGMENT_MEMFD;
965 segment_handle = msg->segment_handle;
966 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
968 clib_warning ("invalid segment handle");
972 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
975 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
979 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
984 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
986 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
987 vcl_segment_detach (msg->segment_handle);
988 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
992 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
994 if (!vcm->wrk_rpc_fn)
997 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
1001 vcl_session_transport_attr_reply_handler (vcl_worker_t *wrk, void *data)
1003 session_transport_attr_reply_msg_t *mp;
1005 if (!wrk->session_attr_op)
1008 mp = (session_transport_attr_reply_msg_t *) data;
1010 wrk->session_attr_op_rv = mp->retval;
1011 wrk->session_attr_op = 0;
1012 wrk->session_attr_rv = mp->attr;
1016 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
1018 session_disconnected_msg_t *disconnected_msg;
1019 session_connected_msg_t *connected_msg;
1020 session_reset_msg_t *reset_msg;
1021 session_event_t *ecpy;
1025 switch (e->event_type)
1027 case SESSION_IO_EVT_RX:
1028 case SESSION_IO_EVT_TX:
1029 s = vcl_session_get (wrk, e->session_index);
1030 if (!s || !vcl_session_is_open (s))
1032 vec_add1 (wrk->unhandled_evts_vector, *e);
1034 case SESSION_CTRL_EVT_BOUND:
1035 /* We can only wait for only one listen so not postponed */
1036 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
1038 case SESSION_CTRL_EVT_ACCEPTED:
1039 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
1040 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1042 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1044 ecpy->postponed = 1;
1045 ecpy->session_index = s->session_index;
1048 case SESSION_CTRL_EVT_CONNECTED:
1049 connected_msg = (session_connected_msg_t *) e->data;
1050 sid = vcl_session_connected_handler (wrk, connected_msg);
1051 if (!(s = vcl_session_get (wrk, sid)))
1053 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1055 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
1057 ecpy->postponed = 1;
1058 ecpy->session_index = s->session_index;
1061 case SESSION_CTRL_EVT_DISCONNECTED:
1062 disconnected_msg = (session_disconnected_msg_t *) e->data;
1063 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
1065 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1067 vec_add1 (wrk->unhandled_evts_vector, *e);
1070 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
1072 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
1075 case SESSION_CTRL_EVT_RESET:
1076 reset_msg = (session_reset_msg_t *) e->data;
1077 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
1079 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1081 vec_add1 (wrk->unhandled_evts_vector, *e);
1084 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1086 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1087 vcl_session_unlisten_reply_handler (wrk, e->data);
1089 case SESSION_CTRL_EVT_MIGRATED:
1090 vcl_session_migrated_handler (wrk, e->data);
1092 case SESSION_CTRL_EVT_CLEANUP:
1093 vcl_session_cleanup_handler (wrk, e->data);
1095 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1096 vcl_session_req_worker_update_handler (wrk, e->data);
1098 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1099 vcl_session_worker_update_reply_handler (wrk, e->data);
1101 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1102 vcl_session_app_add_segment_handler (wrk, e->data);
1104 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1105 vcl_session_app_del_segment_handler (wrk, e->data);
1107 case SESSION_CTRL_EVT_APP_WRK_RPC:
1108 vcl_worker_rpc_handler (wrk, e->data);
1110 case SESSION_CTRL_EVT_TRANSPORT_ATTR_REPLY:
1111 vcl_session_transport_attr_reply_handler (wrk, e->data);
1114 clib_warning ("unhandled %u", e->event_type);
1120 vppcom_wait_for_session_state_change (u32 session_index,
1121 vcl_session_state_t state,
1124 vcl_worker_t *wrk = vcl_worker_get_current ();
1125 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1126 vcl_session_t *volatile session;
1127 svm_msg_q_msg_t msg;
1132 session = vcl_session_get (wrk, session_index);
1133 if (PREDICT_FALSE (!session))
1135 return VPPCOM_EBADFD;
1137 if (session->session_state == state)
1141 if (session->session_state == VCL_STATE_DETACHED)
1143 return VPPCOM_ECONNREFUSED;
1146 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1151 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1152 vcl_handle_mq_event (wrk, e);
1153 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1155 while (clib_time_now (&wrk->clib_time) < timeout);
1157 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1158 vppcom_session_state_str (state));
1159 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1161 return VPPCOM_ETIMEDOUT;
1165 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1167 vcl_session_state_t state;
1171 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1174 vec_foreach (sip, wrk->pending_session_wrk_updates)
1176 s = vcl_session_get (wrk, *sip);
1177 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1178 state = s->session_state;
1179 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1181 s->session_state = state;
1183 vec_reset_length (wrk->pending_session_wrk_updates);
1187 vcl_worker_flush_mq_events (vcl_worker_t *wrk)
1189 svm_msg_q_msg_t *msg;
1194 mq = wrk->app_event_queue;
1195 vcl_mq_dequeue_batch (wrk, mq, ~0);
1197 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1199 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1200 e = svm_msg_q_msg_data (mq, msg);
1201 vcl_handle_mq_event (wrk, e);
1202 svm_msg_q_free_msg (mq, msg);
1204 vec_reset_length (wrk->mq_msg_vector);
1205 vcl_handle_pending_wrk_updates (wrk);
1209 vcl_flush_mq_events (void)
1211 vcl_worker_flush_mq_events (vcl_worker_get_current ());
1215 vppcom_session_unbind (u32 session_handle)
1217 vcl_worker_t *wrk = vcl_worker_get_current ();
1218 session_accepted_msg_t *accepted_msg;
1219 vcl_session_t *session = 0;
1220 vcl_session_msg_t *evt;
1222 session = vcl_session_get_w_handle (wrk, session_handle);
1224 return VPPCOM_EBADFD;
1226 /* Flush pending accept events, if any */
1227 while (clib_fifo_elts (session->accept_evts_fifo))
1229 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1230 accepted_msg = &evt->accepted_msg;
1231 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1232 vcl_send_session_accepted_reply (session->vpp_evt_q,
1233 accepted_msg->context,
1234 accepted_msg->handle, -1);
1236 clib_fifo_free (session->accept_evts_fifo);
1238 vcl_send_session_unlisten (wrk, session);
1240 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1241 session->vpp_handle);
1242 vcl_evt (VCL_EVT_UNBIND, session);
1244 session->vpp_handle = ~0;
1245 session->session_state = VCL_STATE_DISCONNECT;
1253 * Notify vpp of the disconnect and mark the worker as free. If we're the
1254 * last worker, do a full cleanup otherwise, since we're probably a forked
1255 * child, avoid syscalls as much as possible. We might've lost privileges.
1258 vppcom_app_exit (void)
1260 if (!pool_elts (vcm->workers))
1262 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1263 vcl_set_worker_index (~0);
1264 vcl_elog_stop (vcm);
1268 vcl_api_attach (void)
1270 if (vcm->cfg.vpp_app_socket_api)
1271 return vcl_sapi_attach ();
1273 return vcl_bapi_attach ();
1277 vcl_api_detach (vcl_worker_t * wrk)
1279 vcl_send_app_detach (wrk);
1281 if (vcm->cfg.vpp_app_socket_api)
1282 return vcl_sapi_detach (wrk);
1284 return vcl_bapi_disconnect_from_vpp ();
1288 * VPPCOM Public API functions
1291 vppcom_app_create (const char *app_name)
1293 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1298 VDBG (1, "already initialized");
1299 return VPPCOM_EEXIST;
1303 vppcom_cfg (&vcm->cfg);
1304 vcl_cfg = &vcm->cfg;
1306 vcm->main_cpu = pthread_self ();
1307 vcm->main_pid = getpid ();
1308 vcm->app_name = format (0, "%s", app_name);
1309 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1310 20 /* timeout in secs */ );
1311 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1312 clib_spinlock_init (&vcm->workers_lock);
1313 clib_rwlock_init (&vcm->segment_table_lock);
1314 atexit (vppcom_app_exit);
1315 vcl_elog_init (vcm);
1317 /* Allocate default worker */
1318 vcl_worker_alloc_and_init ();
1320 if ((rv = vcl_api_attach ()))
1323 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1324 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1330 vppcom_app_destroy (void)
1332 vcl_worker_t *wrk, *current_wrk;
1335 if (!pool_elts (vcm->workers))
1338 vcl_evt (VCL_EVT_DETACH, vcm);
1340 current_wrk = vcl_worker_get_current ();
1343 pool_foreach (wrk, vcm->workers) {
1344 if (current_wrk != wrk)
1345 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1349 vcl_api_detach (current_wrk);
1350 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1352 vcl_elog_stop (vcm);
1355 * Free the heap and fix vcm
1357 heap = clib_mem_get_heap ();
1358 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1360 vcm = &_vppcom_main;
1365 vppcom_session_create (u8 proto, u8 is_nonblocking)
1367 vcl_worker_t *wrk = vcl_worker_get_current ();
1368 vcl_session_t *session;
1370 session = vcl_session_alloc (wrk);
1372 session->session_type = proto;
1373 session->session_state = VCL_STATE_CLOSED;
1374 session->vpp_handle = ~0;
1375 session->is_dgram = vcl_proto_is_dgram (proto);
1378 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1380 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1381 is_nonblocking, session_index);
1383 VDBG (0, "created session %u", session->session_index);
1385 return vcl_session_handle (session);
1389 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1390 vcl_session_handle_t sh, u8 do_disconnect)
1394 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1396 if (s->flags & VCL_SESSION_F_IS_VEP)
1398 u32 next_sh = s->vep.next_sh;
1399 while (next_sh != ~0)
1401 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1402 if (PREDICT_FALSE (rv < 0))
1403 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1404 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1405 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1406 next_sh = s->vep.next_sh;
1411 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1413 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1415 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1416 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1417 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1422 VDBG (1, "session %u [0x%llx] disconnect skipped",
1423 s->session_index, s->vpp_handle);
1427 if (s->session_state == VCL_STATE_LISTEN)
1429 rv = vppcom_session_unbind (sh);
1430 if (PREDICT_FALSE (rv < 0))
1431 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1432 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1433 vppcom_retval_str (rv));
1436 else if (vcl_session_is_ready (s)
1437 || (vcl_session_is_connectable_listener (wrk, s)))
1439 rv = vppcom_session_disconnect (sh);
1440 if (PREDICT_FALSE (rv < 0))
1441 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1442 " rv %d (%s)", s->session_index, s->vpp_handle,
1443 rv, vppcom_retval_str (rv));
1445 else if (s->session_state == VCL_STATE_DISCONNECT)
1447 vcl_send_session_reset_reply (wrk, s, 0);
1449 else if (s->session_state == VCL_STATE_DETACHED)
1451 /* Should not happen. VPP cleaned up before app confirmed close */
1452 VDBG (0, "vpp freed session %d before close", s->session_index);
1456 s->session_state = VCL_STATE_CLOSED;
1458 /* Session is removed only after vpp confirms the disconnect */
1462 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1464 vcl_session_free (wrk, s);
1465 vcl_evt (VCL_EVT_CLOSE, s, rv);
1471 vppcom_session_close (uint32_t session_handle)
1473 vcl_worker_t *wrk = vcl_worker_get_current ();
1474 vcl_session_t *session;
1476 session = vcl_session_get_w_handle (wrk, session_handle);
1478 return VPPCOM_EBADFD;
1479 return vcl_session_cleanup (wrk, session, session_handle,
1480 1 /* do_disconnect */ );
1484 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1486 vcl_worker_t *wrk = vcl_worker_get_current ();
1487 vcl_session_t *session = 0;
1490 return VPPCOM_EINVAL;
1492 session = vcl_session_get_w_handle (wrk, session_handle);
1494 return VPPCOM_EBADFD;
1496 if (session->flags & VCL_SESSION_F_IS_VEP)
1498 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1499 session->session_index);
1500 return VPPCOM_EBADFD;
1503 session->transport.is_ip4 = ep->is_ip4;
1505 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1506 sizeof (ip4_address_t));
1508 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1509 sizeof (ip6_address_t));
1510 session->transport.lcl_port = ep->port;
1512 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1513 "proto %s", session->session_index, session_handle,
1514 session->transport.is_ip4 ? "IPv4" : "IPv6",
1515 format_ip46_address, &session->transport.lcl_ip,
1516 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1517 clib_net_to_host_u16 (session->transport.lcl_port),
1518 vppcom_proto_str (session->session_type));
1519 vcl_evt (VCL_EVT_BIND, session);
1521 if (session->session_type == VPPCOM_PROTO_UDP)
1522 vppcom_session_listen (session_handle, 10);
1528 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1530 vcl_worker_t *wrk = vcl_worker_get_current ();
1531 vcl_session_t *listen_session = 0;
1532 u64 listen_vpp_handle;
1535 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1536 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1537 return VPPCOM_EBADFD;
1539 if (q_len == 0 || q_len == ~0)
1540 q_len = vcm->cfg.listen_queue_size;
1542 listen_vpp_handle = listen_session->vpp_handle;
1543 if (listen_session->session_state == VCL_STATE_LISTEN)
1545 VDBG (0, "session %u [0x%llx]: already in listen state!",
1546 listen_sh, listen_vpp_handle);
1550 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1553 * Send listen request to vpp and wait for reply
1555 vcl_send_session_listen (wrk, listen_session);
1556 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1558 vcm->cfg.session_timeout);
1560 if (PREDICT_FALSE (rv))
1562 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1563 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1564 listen_sh, listen_session->vpp_handle, rv,
1565 vppcom_retval_str (rv));
1573 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1575 if (ls->flags & VCL_SESSION_F_IS_VEP)
1577 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1579 return VPPCOM_EBADFD;
1582 if ((ls->session_state != VCL_STATE_LISTEN)
1583 && (!vcl_session_is_connectable_listener (wrk, ls)))
1585 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1586 " (%s)", ls->vpp_handle, ls->session_state,
1587 vppcom_session_state_str (ls->session_state));
1588 return VPPCOM_EBADFD;
1594 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1596 if (!strcmp (proto_str, "TCP"))
1597 *proto = VPPCOM_PROTO_TCP;
1598 else if (!strcmp (proto_str, "tcp"))
1599 *proto = VPPCOM_PROTO_TCP;
1600 else if (!strcmp (proto_str, "UDP"))
1601 *proto = VPPCOM_PROTO_UDP;
1602 else if (!strcmp (proto_str, "udp"))
1603 *proto = VPPCOM_PROTO_UDP;
1604 else if (!strcmp (proto_str, "TLS"))
1605 *proto = VPPCOM_PROTO_TLS;
1606 else if (!strcmp (proto_str, "tls"))
1607 *proto = VPPCOM_PROTO_TLS;
1608 else if (!strcmp (proto_str, "QUIC"))
1609 *proto = VPPCOM_PROTO_QUIC;
1610 else if (!strcmp (proto_str, "quic"))
1611 *proto = VPPCOM_PROTO_QUIC;
1612 else if (!strcmp (proto_str, "DTLS"))
1613 *proto = VPPCOM_PROTO_DTLS;
1614 else if (!strcmp (proto_str, "dtls"))
1615 *proto = VPPCOM_PROTO_DTLS;
1622 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1625 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1626 vcl_worker_t *wrk = vcl_worker_get_current ();
1627 session_accepted_msg_t accepted_msg;
1628 vcl_session_t *listen_session = 0;
1629 vcl_session_t *client_session = 0;
1630 vcl_session_msg_t *evt;
1636 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1637 if (!listen_session)
1638 return VPPCOM_EBADFD;
1640 listen_session_index = listen_session->session_index;
1641 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1644 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1646 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1647 accept_flags = evt->flags;
1648 accepted_msg = evt->accepted_msg;
1652 is_nonblocking = vcl_session_has_attr (listen_session,
1653 VCL_SESS_ATTR_NONBLOCK);
1656 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1657 return VPPCOM_EAGAIN;
1659 svm_msg_q_wait (wrk->app_event_queue, SVM_MQ_WAIT_EMPTY);
1660 vcl_worker_flush_mq_events (wrk);
1666 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1667 listen_session_index);
1668 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1669 return VPPCOM_ECONNABORTED;
1671 listen_session = vcl_session_get (wrk, listen_session_index);
1672 client_session = vcl_session_get (wrk, client_session_index);
1674 if (flags & O_NONBLOCK)
1675 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1677 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1678 " flags %d, is_nonblocking %u", listen_session->session_index,
1679 listen_session->vpp_handle, client_session_index,
1680 client_session->vpp_handle, flags,
1681 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1685 ep->is_ip4 = client_session->transport.is_ip4;
1686 ep->port = client_session->transport.rmt_port;
1687 if (client_session->transport.is_ip4)
1688 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1689 sizeof (ip4_address_t));
1691 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1692 sizeof (ip6_address_t));
1695 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1696 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1697 client_session_index, client_session->vpp_handle,
1698 format_ip46_address, &client_session->transport.rmt_ip,
1699 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1700 clib_net_to_host_u16 (client_session->transport.rmt_port),
1701 format_ip46_address, &client_session->transport.lcl_ip,
1702 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1703 clib_net_to_host_u16 (client_session->transport.lcl_port));
1704 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1705 client_session_index);
1708 * Session might have been closed already
1712 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1713 client_session->session_state = VCL_STATE_VPP_CLOSING;
1714 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1715 client_session->session_state = VCL_STATE_DISCONNECT;
1717 return vcl_session_handle (client_session);
1721 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1723 vcl_worker_t *wrk = vcl_worker_get_current ();
1724 vcl_session_t *session = 0;
1728 session = vcl_session_get_w_handle (wrk, session_handle);
1730 return VPPCOM_EBADFD;
1731 session_index = session->session_index;
1733 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1735 VDBG (0, "ERROR: cannot connect epoll session %u!",
1736 session->session_index);
1737 return VPPCOM_EBADFD;
1740 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1742 VDBG (0, "session handle %u [0x%llx]: session already "
1743 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1744 session_handle, session->vpp_handle,
1745 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1746 &session->transport.rmt_ip, session->transport.is_ip4 ?
1747 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1748 clib_net_to_host_u16 (session->transport.rmt_port),
1749 vppcom_proto_str (session->session_type), session->session_state,
1750 vppcom_session_state_str (session->session_state));
1754 /* Attempt to connect a connectionless listener */
1755 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1757 if (session->session_type != VPPCOM_PROTO_UDP)
1758 return VPPCOM_EINVAL;
1759 vcl_send_session_unlisten (wrk, session);
1760 session->session_state = VCL_STATE_CLOSED;
1763 session->transport.is_ip4 = server_ep->is_ip4;
1764 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1765 session->transport.rmt_port = server_ep->port;
1766 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1767 session->flags |= VCL_SESSION_F_CONNECTED;
1769 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1770 "port %d proto %s", session_handle,
1771 vppcom_session_state_str (session->session_state),
1772 session->transport.is_ip4 ? "IPv4" : "IPv6",
1773 format_ip46_address,
1774 &session->transport.rmt_ip, session->transport.is_ip4 ?
1775 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1776 clib_net_to_host_u16 (session->transport.rmt_port),
1777 vppcom_proto_str (session->session_type));
1779 vcl_send_session_connect (wrk, session);
1781 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1783 /* State set to STATE_UPDATED to ensure the session is not assumed
1784 * to be ready and to also allow the app to close it prior to vpp's
1785 * connected reply. */
1786 session->session_state = VCL_STATE_UPDATED;
1787 return VPPCOM_EINPROGRESS;
1791 * Wait for reply from vpp if blocking
1793 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1794 vcm->cfg.session_timeout);
1796 session = vcl_session_get (wrk, session_index);
1797 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1798 session->vpp_handle, rv ? "failed" : "succeeded");
1804 vppcom_session_stream_connect (uint32_t session_handle,
1805 uint32_t parent_session_handle)
1807 vcl_worker_t *wrk = vcl_worker_get_current ();
1808 vcl_session_t *session, *parent_session;
1809 u32 session_index, parent_session_index;
1812 session = vcl_session_get_w_handle (wrk, session_handle);
1814 return VPPCOM_EBADFD;
1815 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1816 if (!parent_session)
1817 return VPPCOM_EBADFD;
1819 session_index = session->session_index;
1820 parent_session_index = parent_session->session_index;
1821 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1823 VDBG (0, "ERROR: cannot connect epoll session %u!",
1824 session->session_index);
1825 return VPPCOM_EBADFD;
1828 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1830 VDBG (0, "session handle %u [0x%llx]: session already "
1831 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1832 session_handle, session->vpp_handle,
1833 parent_session_handle, parent_session->vpp_handle,
1834 vppcom_proto_str (session->session_type), session->session_state,
1835 vppcom_session_state_str (session->session_state));
1839 /* Connect to quic session specifics */
1840 session->transport.is_ip4 = parent_session->transport.is_ip4;
1841 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1842 session->transport.rmt_port = 0;
1843 session->parent_handle = parent_session->vpp_handle;
1845 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1846 session_handle, parent_session_handle, parent_session->vpp_handle);
1849 * Send connect request and wait for reply from vpp
1851 vcl_send_session_connect (wrk, session);
1852 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1853 vcm->cfg.session_timeout);
1855 session->listener_index = parent_session_index;
1856 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1858 parent_session->n_accepted_sessions++;
1860 session = vcl_session_get (wrk, session_index);
1861 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1862 session->vpp_handle, rv ? "failed" : "succeeded");
1868 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1871 vcl_worker_t *wrk = vcl_worker_get_current ();
1872 int rv, n_read = 0, is_nonblocking;
1873 vcl_session_t *s = 0;
1874 svm_fifo_t *rx_fifo;
1879 if (PREDICT_FALSE (!buf))
1880 return VPPCOM_EINVAL;
1882 s = vcl_session_get_w_handle (wrk, session_handle);
1883 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1884 return VPPCOM_EBADFD;
1886 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1888 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1889 s->session_index, s->vpp_handle, s->session_state,
1890 vppcom_session_state_str (s->session_state));
1891 return vcl_session_closed_error (s);
1894 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1895 is_ct = vcl_session_is_ct (s);
1896 mq = wrk->app_event_queue;
1897 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1898 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1900 if (svm_fifo_is_empty_cons (rx_fifo))
1904 if (vcl_session_is_closing (s))
1905 return vcl_session_closing_error (s);
1907 svm_fifo_unset_event (s->rx_fifo);
1908 svm_fifo_unset_event (rx_fifo);
1909 return VPPCOM_EWOULDBLOCK;
1911 while (svm_fifo_is_empty_cons (rx_fifo))
1913 if (vcl_session_is_closing (s))
1914 return vcl_session_closing_error (s);
1917 svm_fifo_unset_event (s->rx_fifo);
1918 svm_fifo_unset_event (rx_fifo);
1920 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
1921 vcl_worker_flush_mq_events (wrk);
1928 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1930 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1935 if (svm_fifo_is_empty_cons (rx_fifo))
1938 svm_fifo_unset_event (s->rx_fifo);
1939 svm_fifo_unset_event (rx_fifo);
1940 if (!svm_fifo_is_empty_cons (rx_fifo)
1941 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1943 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1944 e->event_type = SESSION_IO_EVT_RX;
1945 e->session_index = s->session_index;
1948 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1950 /* More data enqueued while reading. Try to drain it
1951 * or fill the buffer. Avoid doing that for dgrams */
1957 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1959 svm_fifo_clear_deq_ntf (rx_fifo);
1960 app_send_io_evt_to_vpp (s->vpp_evt_q,
1961 s->rx_fifo->shr->master_session_index,
1962 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1965 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1966 s->vpp_handle, n_read, rx_fifo);
1972 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1974 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1978 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1980 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1984 vppcom_session_read_segments (uint32_t session_handle,
1985 vppcom_data_segment_t * ds, uint32_t n_segments,
1988 vcl_worker_t *wrk = vcl_worker_get_current ();
1989 int n_read = 0, is_nonblocking;
1990 vcl_session_t *s = 0;
1991 svm_fifo_t *rx_fifo;
1995 s = vcl_session_get_w_handle (wrk, session_handle);
1996 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1997 return VPPCOM_EBADFD;
1999 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2000 return vcl_session_closed_error (s);
2002 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2003 is_ct = vcl_session_is_ct (s);
2004 mq = wrk->app_event_queue;
2005 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
2006 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
2008 if (svm_fifo_is_empty_cons (rx_fifo))
2013 svm_fifo_unset_event (s->rx_fifo);
2014 svm_fifo_unset_event (rx_fifo);
2015 return VPPCOM_EWOULDBLOCK;
2017 while (svm_fifo_is_empty_cons (rx_fifo))
2019 if (vcl_session_is_closing (s))
2020 return vcl_session_closing_error (s);
2023 svm_fifo_unset_event (s->rx_fifo);
2024 svm_fifo_unset_event (rx_fifo);
2026 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2027 vcl_worker_flush_mq_events (wrk);
2031 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
2032 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
2034 return VPPCOM_EAGAIN;
2036 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
2039 svm_fifo_unset_event (s->rx_fifo);
2040 svm_fifo_unset_event (rx_fifo);
2041 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
2042 && svm_fifo_set_event (rx_fifo)
2043 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
2046 vec_add2 (wrk->unhandled_evts_vector, e, 1);
2047 e->event_type = SESSION_IO_EVT_RX;
2048 e->session_index = s->session_index;
2052 s->rx_bytes_pending += n_read;
2057 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2059 vcl_worker_t *wrk = vcl_worker_get_current ();
2063 s = vcl_session_get_w_handle (wrk, session_handle);
2064 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2067 is_ct = vcl_session_is_ct (s);
2068 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2070 ASSERT (s->rx_bytes_pending < n_bytes);
2071 s->rx_bytes_pending -= n_bytes;
2075 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2077 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2079 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2085 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2086 size_t n, u8 is_flush, u8 is_dgram)
2088 int n_write, is_nonblocking;
2089 session_evt_type_t et;
2090 svm_fifo_t *tx_fifo;
2094 if (PREDICT_FALSE (!buf || n == 0))
2095 return VPPCOM_EINVAL;
2097 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2099 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2100 " session!", s->session_index, s->vpp_handle);
2101 return VPPCOM_EBADFD;
2104 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2106 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2107 s->session_index, s->vpp_handle, s->session_state,
2108 vppcom_session_state_str (s->session_state));
2109 return vcl_session_closed_error (s);;
2112 is_ct = vcl_session_is_ct (s);
2113 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2114 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2116 mq = wrk->app_event_queue;
2117 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2121 return VPPCOM_EWOULDBLOCK;
2123 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2125 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2126 if (vcl_session_is_closing (s))
2127 return vcl_session_closing_error (s);
2129 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2130 vcl_worker_flush_mq_events (wrk);
2134 et = SESSION_IO_EVT_TX;
2135 if (is_flush && !is_ct)
2136 et = SESSION_IO_EVT_TX_FLUSH;
2139 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2140 s->vpp_evt_q, buf, n, et,
2141 0 /* do_evt */ , SVM_Q_WAIT);
2143 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2144 0 /* do_evt */ , SVM_Q_WAIT);
2146 if (svm_fifo_set_event (s->tx_fifo))
2147 app_send_io_evt_to_vpp (
2148 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2150 /* The underlying fifo segment can run out of memory */
2151 if (PREDICT_FALSE (n_write < 0))
2152 return VPPCOM_EAGAIN;
2154 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2155 s->vpp_handle, n_write);
2161 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2163 vcl_worker_t *wrk = vcl_worker_get_current ();
2166 s = vcl_session_get_w_handle (wrk, session_handle);
2167 if (PREDICT_FALSE (!s))
2168 return VPPCOM_EBADFD;
2170 return vppcom_session_write_inline (wrk, s, buf, n,
2171 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2175 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2177 vcl_worker_t *wrk = vcl_worker_get_current ();
2180 s = vcl_session_get_w_handle (wrk, session_handle);
2181 if (PREDICT_FALSE (!s))
2182 return VPPCOM_EBADFD;
2184 return vppcom_session_write_inline (wrk, s, buf, n,
2185 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2188 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2189 if (PREDICT_FALSE (!_s->rx_fifo)) \
2191 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2193 if (!vcl_session_is_ct (_s)) \
2195 svm_fifo_unset_event (_s->rx_fifo); \
2196 if (svm_fifo_is_empty (_s->rx_fifo)) \
2199 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2201 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2202 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2208 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2209 unsigned long n_bits, unsigned long *read_map,
2210 unsigned long *write_map,
2211 unsigned long *except_map, u32 * bits_set)
2213 session_disconnected_msg_t *disconnected_msg;
2214 session_connected_msg_t *connected_msg;
2218 switch (e->event_type)
2220 case SESSION_IO_EVT_RX:
2221 sid = e->session_index;
2222 s = vcl_session_get (wrk, sid);
2223 if (!s || !vcl_session_is_open (s))
2225 vcl_fifo_rx_evt_valid_or_break (s);
2226 if (sid < n_bits && read_map)
2228 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2232 case SESSION_IO_EVT_TX:
2233 sid = e->session_index;
2234 s = vcl_session_get (wrk, sid);
2235 if (!s || !vcl_session_is_open (s))
2237 if (sid < n_bits && write_map)
2239 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2243 case SESSION_CTRL_EVT_ACCEPTED:
2245 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2247 s = vcl_session_get (wrk, e->session_index);
2250 sid = s->session_index;
2251 if (sid < n_bits && read_map)
2253 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2257 case SESSION_CTRL_EVT_CONNECTED:
2260 connected_msg = (session_connected_msg_t *) e->data;
2261 sid = vcl_session_connected_handler (wrk, connected_msg);
2264 sid = e->session_index;
2265 if (sid == VCL_INVALID_SESSION_INDEX)
2267 if (sid < n_bits && write_map)
2269 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2273 case SESSION_CTRL_EVT_DISCONNECTED:
2274 disconnected_msg = (session_disconnected_msg_t *) e->data;
2275 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2278 sid = s->session_index;
2279 if (sid < n_bits && except_map)
2281 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2285 case SESSION_CTRL_EVT_RESET:
2286 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2287 if (sid < n_bits && except_map)
2289 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2293 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2294 vcl_session_unlisten_reply_handler (wrk, e->data);
2296 case SESSION_CTRL_EVT_MIGRATED:
2297 vcl_session_migrated_handler (wrk, e->data);
2299 case SESSION_CTRL_EVT_CLEANUP:
2300 vcl_session_cleanup_handler (wrk, e->data);
2302 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2303 vcl_session_worker_update_reply_handler (wrk, e->data);
2305 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2306 vcl_session_req_worker_update_handler (wrk, e->data);
2308 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2309 vcl_session_app_add_segment_handler (wrk, e->data);
2311 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2312 vcl_session_app_del_segment_handler (wrk, e->data);
2314 case SESSION_CTRL_EVT_APP_WRK_RPC:
2315 vcl_worker_rpc_handler (wrk, e->data);
2318 clib_warning ("unhandled: %u", e->event_type);
2324 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2325 unsigned long n_bits, unsigned long *read_map,
2326 unsigned long *write_map, unsigned long *except_map,
2327 double time_to_wait, u32 * bits_set)
2329 svm_msg_q_msg_t *msg;
2333 if (svm_msg_q_is_empty (mq))
2340 else if (time_to_wait < 0)
2341 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2344 if (svm_msg_q_timedwait (mq, time_to_wait))
2348 vcl_mq_dequeue_batch (wrk, mq, ~0);
2350 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2352 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2353 e = svm_msg_q_msg_data (mq, msg);
2354 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2355 except_map, bits_set);
2356 svm_msg_q_free_msg (mq, msg);
2358 vec_reset_length (wrk->mq_msg_vector);
2359 vcl_handle_pending_wrk_updates (wrk);
2364 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2365 vcl_si_set * read_map, vcl_si_set * write_map,
2366 vcl_si_set * except_map, double time_to_wait,
2369 double wait = 0, start = 0;
2373 wait = time_to_wait;
2374 start = clib_time_now (&wrk->clib_time);
2379 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2380 write_map, except_map, wait, bits_set);
2386 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2394 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2395 vcl_si_set * read_map, vcl_si_set * write_map,
2396 vcl_si_set * except_map, double time_to_wait,
2399 vcl_mq_evt_conn_t *mqc;
2400 int __clib_unused n_read;
2404 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2405 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2406 vec_len (wrk->mq_events), time_to_wait);
2407 for (i = 0; i < n_mq_evts; i++)
2409 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2410 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2411 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2412 except_map, 0, bits_set);
2415 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2419 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2420 vcl_si_set * except_map, double time_to_wait)
2422 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2423 vcl_worker_t *wrk = vcl_worker_get_current ();
2424 vcl_session_t *s = 0;
2427 if (n_bits && read_map)
2429 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2430 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2431 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2432 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2434 if (n_bits && write_map)
2436 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2437 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2438 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2439 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2441 if (n_bits && except_map)
2443 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2444 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2445 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2446 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2455 clib_bitmap_foreach (sid, wrk->wr_bitmap)
2457 if (!(s = vcl_session_get (wrk, sid)))
2459 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2464 if (vcl_session_write_ready (s))
2466 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2471 svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2472 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF);
2480 clib_bitmap_foreach (sid, wrk->rd_bitmap)
2482 if (!(s = vcl_session_get (wrk, sid)))
2484 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2489 if (vcl_session_read_ready (s))
2491 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2498 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2500 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2501 read_map, write_map, except_map, &bits_set);
2503 vec_reset_length (wrk->unhandled_evts_vector);
2505 if (vcm->cfg.use_mq_eventfd)
2506 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2507 time_to_wait, &bits_set);
2509 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2510 time_to_wait, &bits_set);
2516 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2518 vppcom_epoll_t *vep;
2519 u32 sh = vep_handle;
2522 if (VPPCOM_DEBUG <= 2)
2525 s = vcl_session_get_w_handle (wrk, vep_handle);
2526 if (PREDICT_FALSE (!s))
2528 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2531 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2533 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2537 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2540 " is_vep_session = %u\n"
2541 " next_sh = 0x%x (%u)\n"
2542 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2543 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2545 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2547 s = vcl_session_get_w_handle (wrk, sh);
2548 if (PREDICT_FALSE (!s))
2550 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2553 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2555 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2557 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2559 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2563 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2564 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2565 sh, s->vep.vep_sh, vep_handle);
2566 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2568 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2570 " next_sh = 0x%x (%u)\n"
2571 " prev_sh = 0x%x (%u)\n"
2572 " vep_sh = 0x%x (%u)\n"
2573 " ev.events = 0x%x\n"
2574 " ev.data.u64 = 0x%llx\n"
2577 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2578 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2579 vep->ev.data.u64, vep->et_mask);
2584 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2588 vppcom_epoll_create (void)
2590 vcl_worker_t *wrk = vcl_worker_get_current ();
2591 vcl_session_t *vep_session;
2593 vep_session = vcl_session_alloc (wrk);
2595 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2596 vep_session->vep.vep_sh = ~0;
2597 vep_session->vep.next_sh = ~0;
2598 vep_session->vep.prev_sh = ~0;
2599 vep_session->vpp_handle = ~0;
2601 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2602 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2604 return vcl_session_handle (vep_session);
2608 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2609 struct epoll_event *event)
2611 vcl_worker_t *wrk = vcl_worker_get_current ();
2612 vcl_session_t *vep_session;
2617 if (vep_handle == session_handle)
2619 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2620 return VPPCOM_EINVAL;
2623 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2624 if (PREDICT_FALSE (!vep_session))
2626 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2627 return VPPCOM_EBADFD;
2629 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2631 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2632 return VPPCOM_EINVAL;
2635 ASSERT (vep_session->vep.vep_sh == ~0);
2636 ASSERT (vep_session->vep.prev_sh == ~0);
2638 s = vcl_session_get_w_handle (wrk, session_handle);
2639 if (PREDICT_FALSE (!s))
2641 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2642 return VPPCOM_EBADFD;
2644 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2646 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2647 return VPPCOM_EINVAL;
2653 if (PREDICT_FALSE (!event))
2655 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2656 return VPPCOM_EINVAL;
2658 if (vep_session->vep.next_sh != ~0)
2660 vcl_session_t *next_session;
2661 next_session = vcl_session_get_w_handle (wrk,
2662 vep_session->vep.next_sh);
2663 if (PREDICT_FALSE (!next_session))
2665 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2666 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2667 return VPPCOM_EBADFD;
2669 ASSERT (next_session->vep.prev_sh == vep_handle);
2670 next_session->vep.prev_sh = session_handle;
2672 s->vep.next_sh = vep_session->vep.next_sh;
2673 s->vep.prev_sh = vep_handle;
2674 s->vep.vep_sh = vep_handle;
2675 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2677 s->flags &= ~VCL_SESSION_F_IS_VEP;
2678 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2679 vep_session->vep.next_sh = session_handle;
2681 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2682 if (txf && (event->events & EPOLLOUT))
2683 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2685 /* Generate EPOLLOUT if tx fifo not full */
2686 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2688 session_event_t e = { 0 };
2689 e.event_type = SESSION_IO_EVT_TX;
2690 e.session_index = s->session_index;
2691 vec_add1 (wrk->unhandled_evts_vector, e);
2693 /* Generate EPOLLIN if rx fifo has data */
2694 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2696 session_event_t e = { 0 };
2697 e.event_type = SESSION_IO_EVT_RX;
2698 e.session_index = s->session_index;
2699 vec_add1 (wrk->unhandled_evts_vector, e);
2701 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2702 vep_handle, session_handle, event->events, event->data.u64);
2703 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2707 if (PREDICT_FALSE (!event))
2709 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2713 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2715 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2719 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2721 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2722 session_handle, s->vep.vep_sh, vep_handle);
2727 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2728 if ((event->events & EPOLLOUT) &&
2729 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2731 session_event_t e = { 0 };
2732 e.event_type = SESSION_IO_EVT_TX;
2733 e.session_index = s->session_index;
2734 vec_add1 (wrk->unhandled_evts_vector, e);
2736 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2738 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2741 if (event->events & EPOLLOUT)
2742 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2744 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2746 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2747 vep_handle, session_handle, event->events, event->data.u64);
2751 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2753 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2757 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2759 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2760 session_handle, s->vep.vep_sh, vep_handle);
2765 if (s->vep.prev_sh == vep_handle)
2766 vep_session->vep.next_sh = s->vep.next_sh;
2769 vcl_session_t *prev_session;
2770 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2771 if (PREDICT_FALSE (!prev_session))
2773 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2774 s->vep.prev_sh, session_handle);
2775 return VPPCOM_EBADFD;
2777 ASSERT (prev_session->vep.next_sh == session_handle);
2778 prev_session->vep.next_sh = s->vep.next_sh;
2780 if (s->vep.next_sh != ~0)
2782 vcl_session_t *next_session;
2783 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2784 if (PREDICT_FALSE (!next_session))
2786 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2787 s->vep.next_sh, session_handle);
2788 return VPPCOM_EBADFD;
2790 ASSERT (next_session->vep.prev_sh == session_handle);
2791 next_session->vep.prev_sh = s->vep.prev_sh;
2794 memset (&s->vep, 0, sizeof (s->vep));
2795 s->vep.next_sh = ~0;
2796 s->vep.prev_sh = ~0;
2798 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2800 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2802 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2804 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2806 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2810 VDBG (0, "Invalid operation (%d)!", op);
2814 vep_verify_epoll_chain (wrk, vep_handle);
2821 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2822 struct epoll_event *events, u32 * num_ev)
2824 session_disconnected_msg_t *disconnected_msg;
2825 session_connected_msg_t *connected_msg;
2826 u32 sid = ~0, session_events;
2827 u64 session_evt_data = ~0;
2831 switch (e->event_type)
2833 case SESSION_IO_EVT_RX:
2834 sid = e->session_index;
2835 s = vcl_session_get (wrk, sid);
2836 if (vcl_session_is_closed (s))
2838 vcl_fifo_rx_evt_valid_or_break (s);
2839 session_events = s->vep.ev.events;
2840 if (!(EPOLLIN & s->vep.ev.events)
2841 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2844 events[*num_ev].events |= EPOLLIN;
2845 session_evt_data = s->vep.ev.data.u64;
2846 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2848 case SESSION_IO_EVT_TX:
2849 sid = e->session_index;
2850 s = vcl_session_get (wrk, sid);
2851 if (vcl_session_is_closed (s))
2853 session_events = s->vep.ev.events;
2854 if (!(EPOLLOUT & session_events))
2857 events[*num_ev].events |= EPOLLOUT;
2858 session_evt_data = s->vep.ev.data.u64;
2859 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2860 s->ct_tx_fifo : s->tx_fifo);
2862 case SESSION_CTRL_EVT_ACCEPTED:
2864 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2866 s = vcl_session_get (wrk, e->session_index);
2869 session_events = s->vep.ev.events;
2870 sid = s->session_index;
2871 if (!(EPOLLIN & session_events))
2874 events[*num_ev].events |= EPOLLIN;
2875 session_evt_data = s->vep.ev.data.u64;
2877 case SESSION_CTRL_EVT_CONNECTED:
2880 connected_msg = (session_connected_msg_t *) e->data;
2881 sid = vcl_session_connected_handler (wrk, connected_msg);
2884 sid = e->session_index;
2885 s = vcl_session_get (wrk, sid);
2886 if (vcl_session_is_closed (s))
2888 session_events = s->vep.ev.events;
2889 /* Generate EPOLLOUT because there's no connected event */
2890 if (!(EPOLLOUT & session_events))
2893 events[*num_ev].events |= EPOLLOUT;
2894 session_evt_data = s->vep.ev.data.u64;
2895 if (s->session_state == VCL_STATE_DETACHED)
2896 events[*num_ev].events |= EPOLLHUP;
2898 case SESSION_CTRL_EVT_DISCONNECTED:
2899 disconnected_msg = (session_disconnected_msg_t *) e->data;
2900 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2901 if (vcl_session_is_closed (s))
2903 sid = s->session_index;
2904 session_events = s->vep.ev.events;
2906 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2907 session_evt_data = s->vep.ev.data.u64;
2909 case SESSION_CTRL_EVT_RESET:
2910 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2911 s = vcl_session_get (wrk, sid);
2912 if (vcl_session_is_closed (s))
2914 session_events = s->vep.ev.events;
2916 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2917 session_evt_data = s->vep.ev.data.u64;
2919 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2920 vcl_session_unlisten_reply_handler (wrk, e->data);
2922 case SESSION_CTRL_EVT_MIGRATED:
2923 vcl_session_migrated_handler (wrk, e->data);
2925 case SESSION_CTRL_EVT_CLEANUP:
2926 vcl_session_cleanup_handler (wrk, e->data);
2928 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2929 vcl_session_req_worker_update_handler (wrk, e->data);
2931 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2932 vcl_session_worker_update_reply_handler (wrk, e->data);
2934 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2935 vcl_session_app_add_segment_handler (wrk, e->data);
2937 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2938 vcl_session_app_del_segment_handler (wrk, e->data);
2940 case SESSION_CTRL_EVT_APP_WRK_RPC:
2941 vcl_worker_rpc_handler (wrk, e->data);
2944 VDBG (0, "unhandled: %u", e->event_type);
2950 events[*num_ev].data.u64 = session_evt_data;
2951 if (EPOLLONESHOT & session_events)
2953 s = vcl_session_get (wrk, sid);
2954 s->vep.ev.events = 0;
2961 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2962 struct epoll_event *events, u32 maxevents,
2963 double wait_for_time, u32 * num_ev)
2965 svm_msg_q_msg_t *msg;
2969 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2970 goto handle_dequeued;
2972 if (svm_msg_q_is_empty (mq))
2976 else if (wait_for_time < 0)
2977 svm_msg_q_wait (mq, SVM_MQ_WAIT_EMPTY);
2980 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2984 ASSERT (maxevents > *num_ev);
2985 vcl_mq_dequeue_batch (wrk, mq, ~0);
2988 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2990 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2991 e = svm_msg_q_msg_data (mq, msg);
2992 if (*num_ev < maxevents)
2993 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2995 vcl_handle_mq_event (wrk, e);
2996 svm_msg_q_free_msg (mq, msg);
2998 vec_reset_length (wrk->mq_msg_vector);
2999 vcl_handle_pending_wrk_updates (wrk);
3004 vppcom_epoll_wait_condvar (vcl_worker_t *wrk, struct epoll_event *events,
3005 int maxevents, u32 n_evts, double timeout_ms)
3012 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3017 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
3018 timeout_ms, &n_evts);
3019 if (n_evts || !timeout_ms)
3022 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3028 vppcom_epoll_wait_eventfd (vcl_worker_t *wrk, struct epoll_event *events,
3029 int maxevents, u32 n_evts, double timeout_ms)
3031 int __clib_unused n_read;
3032 vcl_mq_evt_conn_t *mqc;
3037 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3041 end = clib_time_now (&wrk->clib_time) + (timeout_ms / 1e3);
3046 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3047 vec_len (wrk->mq_events), timeout_ms);
3050 VDBG (0, "epoll_wait error %u", errno);
3054 for (i = 0; i < n_mq_evts; i++)
3056 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3057 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3058 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0,
3062 if (n_evts || !timeout_ms)
3065 while (end == -1 || clib_time_now (&wrk->clib_time) < end);
3071 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3072 int maxevents, double wait_for_time)
3074 vcl_worker_t *wrk = vcl_worker_get_current ();
3075 vcl_session_t *vep_session;
3079 if (PREDICT_FALSE (maxevents <= 0))
3081 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3082 return VPPCOM_EINVAL;
3085 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3087 return VPPCOM_EBADFD;
3089 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3091 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3092 return VPPCOM_EINVAL;
3095 memset (events, 0, sizeof (*events) * maxevents);
3097 if (vec_len (wrk->unhandled_evts_vector))
3099 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3101 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3103 if (n_evts == maxevents)
3105 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3109 vec_reset_length (wrk->unhandled_evts_vector);
3111 /* Request to only drain unhandled */
3112 if ((int) wait_for_time == -2)
3115 if (vcm->cfg.use_mq_eventfd)
3116 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3119 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3124 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3125 void *buffer, uint32_t * buflen)
3127 vcl_worker_t *wrk = vcl_worker_get_current ();
3128 u32 *flags = buffer, tmp_flags = 0;
3129 vppcom_endpt_t *ep = buffer;
3130 transport_endpt_attr_t tea;
3131 vcl_session_t *session;
3134 session = vcl_session_get_w_handle (wrk, session_handle);
3136 return VPPCOM_EBADFD;
3140 case VPPCOM_ATTR_GET_NREAD:
3141 rv = vcl_session_read_ready (session);
3142 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3146 case VPPCOM_ATTR_GET_NWRITE:
3147 rv = vcl_session_write_ready (session);
3148 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3152 case VPPCOM_ATTR_GET_FLAGS:
3153 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3157 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3159 *buflen = sizeof (*flags);
3160 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3161 "is_nonblocking = %u", session_handle, *flags,
3162 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3168 case VPPCOM_ATTR_SET_FLAGS:
3169 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3171 if (*flags & O_NONBLOCK)
3172 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3174 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3176 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3177 " is_nonblocking = %u", session_handle, *flags,
3178 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3184 case VPPCOM_ATTR_GET_PEER_ADDR:
3185 if (PREDICT_TRUE (buffer && buflen &&
3186 (*buflen >= sizeof (*ep)) && ep->ip))
3188 ep->is_ip4 = session->transport.is_ip4;
3189 ep->port = session->transport.rmt_port;
3190 if (session->transport.is_ip4)
3191 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3192 sizeof (ip4_address_t));
3194 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3195 sizeof (ip6_address_t));
3196 *buflen = sizeof (*ep);
3197 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3198 "addr = %U, port %u", session_handle, ep->is_ip4,
3199 format_ip46_address, &session->transport.rmt_ip,
3200 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3201 clib_net_to_host_u16 (ep->port));
3207 case VPPCOM_ATTR_GET_LCL_ADDR:
3208 if (PREDICT_TRUE (buffer && buflen &&
3209 (*buflen >= sizeof (*ep)) && ep->ip))
3211 ep->is_ip4 = session->transport.is_ip4;
3212 ep->port = session->transport.lcl_port;
3213 if (session->transport.is_ip4)
3214 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3215 sizeof (ip4_address_t));
3217 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3218 sizeof (ip6_address_t));
3219 *buflen = sizeof (*ep);
3220 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3221 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3222 &session->transport.lcl_ip,
3223 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3224 clib_net_to_host_u16 (ep->port));
3230 case VPPCOM_ATTR_SET_LCL_ADDR:
3231 if (PREDICT_TRUE (buffer && buflen &&
3232 (*buflen >= sizeof (*ep)) && ep->ip))
3234 session->transport.is_ip4 = ep->is_ip4;
3235 session->transport.lcl_port = ep->port;
3236 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3237 *buflen = sizeof (*ep);
3238 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3239 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3240 &session->transport.lcl_ip,
3241 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3242 clib_net_to_host_u16 (ep->port));
3248 case VPPCOM_ATTR_GET_LIBC_EPFD:
3249 rv = session->libc_epfd;
3250 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3253 case VPPCOM_ATTR_SET_LIBC_EPFD:
3254 if (PREDICT_TRUE (buffer && buflen &&
3255 (*buflen == sizeof (session->libc_epfd))))
3257 session->libc_epfd = *(int *) buffer;
3258 *buflen = sizeof (session->libc_epfd);
3260 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3261 session->libc_epfd, *buflen);
3267 case VPPCOM_ATTR_GET_PROTOCOL:
3268 if (buffer && buflen && (*buflen >= sizeof (int)))
3270 *(int *) buffer = session->session_type;
3271 *buflen = sizeof (int);
3273 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3274 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3280 case VPPCOM_ATTR_GET_LISTEN:
3281 if (buffer && buflen && (*buflen >= sizeof (int)))
3283 *(int *) buffer = vcl_session_has_attr (session,
3284 VCL_SESS_ATTR_LISTEN);
3285 *buflen = sizeof (int);
3287 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3294 case VPPCOM_ATTR_GET_ERROR:
3295 if (buffer && buflen && (*buflen >= sizeof (int)))
3297 *(int *) buffer = 0;
3298 *buflen = sizeof (int);
3300 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3301 *(int *) buffer, *buflen);
3307 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3308 if (buffer && buflen && (*buflen >= sizeof (u32)))
3312 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3314 svm_fifo_size (session->tx_fifo) :
3315 vcm->cfg.tx_fifo_size);
3316 *buflen = sizeof (u32);
3318 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3319 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3326 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3327 if (buffer && buflen && (*buflen == sizeof (u32)))
3330 session->sndbuf_size = *(u32 *) buffer;
3331 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3332 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3339 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3340 if (buffer && buflen && (*buflen >= sizeof (u32)))
3344 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3346 svm_fifo_size (session->rx_fifo) :
3347 vcm->cfg.rx_fifo_size);
3348 *buflen = sizeof (u32);
3350 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3351 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3357 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3358 if (buffer && buflen && (*buflen == sizeof (u32)))
3361 session->rcvbuf_size = *(u32 *) buffer;
3362 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3363 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3370 case VPPCOM_ATTR_GET_REUSEADDR:
3371 if (buffer && buflen && (*buflen >= sizeof (int)))
3374 *(int *) buffer = vcl_session_has_attr (session,
3375 VCL_SESS_ATTR_REUSEADDR);
3376 *buflen = sizeof (int);
3378 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3379 *(int *) buffer, *buflen);
3385 case VPPCOM_ATTR_SET_REUSEADDR:
3386 if (buffer && buflen && (*buflen == sizeof (int)) &&
3387 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3390 if (*(int *) buffer)
3391 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3393 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3395 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3396 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3403 case VPPCOM_ATTR_GET_REUSEPORT:
3404 if (buffer && buflen && (*buflen >= sizeof (int)))
3407 *(int *) buffer = vcl_session_has_attr (session,
3408 VCL_SESS_ATTR_REUSEPORT);
3409 *buflen = sizeof (int);
3411 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3412 *(int *) buffer, *buflen);
3418 case VPPCOM_ATTR_SET_REUSEPORT:
3419 if (buffer && buflen && (*buflen == sizeof (int)) &&
3420 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3423 if (*(int *) buffer)
3424 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3426 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3428 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3429 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3436 case VPPCOM_ATTR_GET_BROADCAST:
3437 if (buffer && buflen && (*buflen >= sizeof (int)))
3440 *(int *) buffer = vcl_session_has_attr (session,
3441 VCL_SESS_ATTR_BROADCAST);
3442 *buflen = sizeof (int);
3444 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3445 *(int *) buffer, *buflen);
3451 case VPPCOM_ATTR_SET_BROADCAST:
3452 if (buffer && buflen && (*buflen == sizeof (int)))
3455 if (*(int *) buffer)
3456 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3458 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3460 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3461 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3468 case VPPCOM_ATTR_GET_V6ONLY:
3469 if (buffer && buflen && (*buflen >= sizeof (int)))
3472 *(int *) buffer = vcl_session_has_attr (session,
3473 VCL_SESS_ATTR_V6ONLY);
3474 *buflen = sizeof (int);
3476 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3477 *(int *) buffer, *buflen);
3483 case VPPCOM_ATTR_SET_V6ONLY:
3484 if (buffer && buflen && (*buflen == sizeof (int)))
3487 if (*(int *) buffer)
3488 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3490 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3492 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3493 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3500 case VPPCOM_ATTR_GET_KEEPALIVE:
3501 if (buffer && buflen && (*buflen >= sizeof (int)))
3504 *(int *) buffer = vcl_session_has_attr (session,
3505 VCL_SESS_ATTR_KEEPALIVE);
3506 *buflen = sizeof (int);
3508 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3509 *(int *) buffer, *buflen);
3515 case VPPCOM_ATTR_SET_KEEPALIVE:
3516 if (buffer && buflen && (*buflen == sizeof (int)))
3519 if (*(int *) buffer)
3520 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3522 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3524 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3525 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3532 case VPPCOM_ATTR_GET_TCP_NODELAY:
3533 if (buffer && buflen && (*buflen >= sizeof (int)))
3536 *(int *) buffer = vcl_session_has_attr (session,
3537 VCL_SESS_ATTR_TCP_NODELAY);
3538 *buflen = sizeof (int);
3540 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3541 *(int *) buffer, *buflen);
3547 case VPPCOM_ATTR_SET_TCP_NODELAY:
3548 if (buffer && buflen && (*buflen == sizeof (int)))
3551 if (*(int *) buffer)
3552 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3554 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3556 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3557 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3564 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3565 if (buffer && buflen && (*buflen >= sizeof (int)))
3568 *(int *) buffer = vcl_session_has_attr (session,
3569 VCL_SESS_ATTR_TCP_KEEPIDLE);
3570 *buflen = sizeof (int);
3572 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3573 *(int *) buffer, *buflen);
3579 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3580 if (buffer && buflen && (*buflen == sizeof (int)))
3583 if (*(int *) buffer)
3584 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3586 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3588 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3589 vcl_session_has_attr (session,
3590 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3596 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3597 if (buffer && buflen && (*buflen >= sizeof (int)))
3600 *(int *) buffer = vcl_session_has_attr (session,
3601 VCL_SESS_ATTR_TCP_KEEPINTVL);
3602 *buflen = sizeof (int);
3604 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3605 *(int *) buffer, *buflen);
3611 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3612 if (buffer && buflen && (*buflen == sizeof (int)))
3615 if (*(int *) buffer)
3616 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3618 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3620 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3621 vcl_session_has_attr (session,
3622 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3628 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3629 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3635 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
3636 tea.mss = *(u32 *) buffer;
3637 if (vcl_session_transport_attr (wrk, session, 1 /* is_get */, &tea))
3638 rv = VPPCOM_ENOPROTOOPT;
3642 *(u32 *) buffer = tea.mss;
3643 *buflen = sizeof (int);
3646 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d", *(int *) buffer,
3650 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3651 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3657 tea.type = TRANSPORT_ENDPT_ATTR_MSS;
3658 tea.mss = *(u32 *) buffer;
3659 if (vcl_session_transport_attr (wrk, session, 0 /* is_get */, &tea))
3660 rv = VPPCOM_ENOPROTOOPT;
3662 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d", tea.mss,
3666 case VPPCOM_ATTR_SET_SHUT:
3667 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3668 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3669 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3670 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3673 case VPPCOM_ATTR_GET_SHUT:
3674 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3676 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3679 *(int *) buffer = SHUT_RD;
3680 else if (tmp_flags == 2)
3681 *(int *) buffer = SHUT_WR;
3682 else if (tmp_flags == 3)
3683 *(int *) buffer = SHUT_RDWR;
3684 *buflen = sizeof (int);
3687 case VPPCOM_ATTR_SET_CONNECTED:
3688 session->flags |= VCL_SESSION_F_CONNECTED;
3691 case VPPCOM_ATTR_SET_CKPAIR:
3692 if (!(buffer && buflen && (*buflen == sizeof (int))) ||
3693 !vcl_session_has_crypto (session))
3698 if (!session->ext_config)
3700 vcl_session_alloc_ext_cfg (session, TRANSPORT_ENDPT_EXT_CFG_CRYPTO);
3702 else if (session->ext_config->type != TRANSPORT_ENDPT_EXT_CFG_CRYPTO)
3708 session->ext_config->crypto.ckpair_index = *(uint32_t *) buffer;
3711 case VPPCOM_ATTR_SET_VRF:
3712 if (!(buffer && buflen && (*buflen == sizeof (u32))))
3717 session->vrf = *(u32 *) buffer;
3720 case VPPCOM_ATTR_GET_VRF:
3721 if (!(buffer && buflen && (*buflen >= sizeof (u32))))
3726 *(u32 *) buffer = session->vrf;
3727 *buflen = sizeof (u32);
3730 case VPPCOM_ATTR_GET_DOMAIN:
3731 if (!(buffer && buflen && (*buflen >= sizeof (int))))
3737 if (session->transport.is_ip4)
3738 *(int *) buffer = AF_INET;
3740 *(int *) buffer = AF_INET6;
3741 *buflen = sizeof (int);
3743 VDBG (2, "VPPCOM_ATTR_GET_DOMAIN: %d, buflen %u", *(int *) buffer,
3756 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3757 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3759 vcl_worker_t *wrk = vcl_worker_get_current ();
3760 vcl_session_t *session;
3764 rv = vppcom_session_read (session_handle, buffer, buflen);
3765 else if (flags & MSG_PEEK)
3766 rv = vppcom_session_peek (session_handle, buffer, buflen);
3769 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3770 return VPPCOM_EAFNOSUPPORT;
3775 session = vcl_session_get_w_handle (wrk, session_handle);
3776 if (session->transport.is_ip4)
3777 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3778 sizeof (ip4_address_t));
3780 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3781 sizeof (ip6_address_t));
3782 ep->is_ip4 = session->transport.is_ip4;
3783 ep->port = session->transport.rmt_port;
3790 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3791 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3793 vcl_worker_t *wrk = vcl_worker_get_current ();
3796 s = vcl_session_get_w_handle (wrk, session_handle);
3798 return VPPCOM_EBADFD;
3801 return VPPCOM_EINVAL;
3805 if (!vcl_session_is_cl (s))
3806 return VPPCOM_EINVAL;
3808 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3809 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3811 u32 session_index = s->session_index;
3812 f64 timeout = vcm->cfg.session_timeout;
3815 vcl_send_session_connect (wrk, s);
3816 rv = vppcom_wait_for_session_state_change (session_index,
3821 s = vcl_session_get (wrk, session_index);
3824 s->transport.is_ip4 = ep->is_ip4;
3825 s->transport.rmt_port = ep->port;
3826 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3831 // TBD check the flags and do the right thing
3832 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3835 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3836 s->is_dgram ? 1 : 0));
3840 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3842 vcl_worker_t *wrk = vcl_worker_get_current ();
3843 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3844 u32 i, keep_trying = 1;
3845 svm_msg_q_msg_t msg;
3849 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3852 return VPPCOM_EFAULT;
3856 vcl_session_t *session;
3858 /* Dequeue all events and drop all unhandled io events */
3859 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3861 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3862 vcl_handle_mq_event (wrk, e);
3863 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3865 vec_reset_length (wrk->unhandled_evts_vector);
3867 for (i = 0; i < n_sids; i++)
3869 session = vcl_session_get (wrk, vp[i].sh);
3872 vp[i].revents = POLLHUP;
3879 if (POLLIN & vp[i].events)
3881 rv = vcl_session_read_ready (session);
3884 vp[i].revents |= POLLIN;
3891 case VPPCOM_ECONNRESET:
3892 vp[i].revents = POLLHUP;
3896 vp[i].revents = POLLERR;
3903 if (POLLOUT & vp[i].events)
3905 rv = vcl_session_write_ready (session);
3908 vp[i].revents |= POLLOUT;
3915 case VPPCOM_ECONNRESET:
3916 vp[i].revents = POLLHUP;
3920 vp[i].revents = POLLERR;
3927 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3929 vp[i].revents = POLLNVAL;
3933 if (wait_for_time != -1)
3934 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3936 while ((num_ev == 0) && keep_trying);
3942 vppcom_mq_epoll_fd (void)
3944 vcl_worker_t *wrk = vcl_worker_get_current ();
3945 return wrk->mqs_epfd;
3949 vppcom_session_index (vcl_session_handle_t session_handle)
3951 return session_handle & 0xFFFFFF;
3955 vppcom_session_worker (vcl_session_handle_t session_handle)
3957 return session_handle >> 24;
3961 vppcom_worker_register (void)
3963 if (!vcl_worker_alloc_and_init ())
3964 return VPPCOM_EEXIST;
3966 if (vcl_worker_register_with_vpp ())
3967 return VPPCOM_EEXIST;
3973 vppcom_worker_unregister (void)
3975 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3976 vcl_set_worker_index (~0);
3980 vppcom_worker_index_set (int index)
3982 vcl_set_worker_index (index);
3986 vppcom_worker_index (void)
3988 return vcl_get_worker_index ();
3992 vppcom_worker_mqs_epfd (void)
3994 vcl_worker_t *wrk = vcl_worker_get_current ();
3995 if (!vcm->cfg.use_mq_eventfd)
3997 return wrk->mqs_epfd;
4001 vppcom_session_is_connectable_listener (uint32_t session_handle)
4003 vcl_session_t *session;
4004 vcl_worker_t *wrk = vcl_worker_get_current ();
4005 session = vcl_session_get_w_handle (wrk, session_handle);
4007 return VPPCOM_EBADFD;
4008 return vcl_session_is_connectable_listener (wrk, session);
4012 vppcom_session_listener (uint32_t session_handle)
4014 vcl_worker_t *wrk = vcl_worker_get_current ();
4015 vcl_session_t *listen_session, *session;
4016 session = vcl_session_get_w_handle (wrk, session_handle);
4018 return VPPCOM_EBADFD;
4019 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
4020 return VPPCOM_EBADFD;
4021 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
4022 if (!listen_session)
4023 return VPPCOM_EBADFD;
4024 return vcl_session_handle (listen_session);
4028 vppcom_session_n_accepted (uint32_t session_handle)
4030 vcl_worker_t *wrk = vcl_worker_get_current ();
4031 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
4033 return VPPCOM_EBADFD;
4034 return session->n_accepted_sessions;
4038 vppcom_proto_str (vppcom_proto_t proto)
4040 char const *proto_str;
4044 case VPPCOM_PROTO_TCP:
4047 case VPPCOM_PROTO_UDP:
4050 case VPPCOM_PROTO_TLS:
4053 case VPPCOM_PROTO_QUIC:
4056 case VPPCOM_PROTO_DTLS:
4060 proto_str = "UNKNOWN";
4067 vppcom_retval_str (int retval)
4078 st = "VPPCOM_EAGAIN";
4082 st = "VPPCOM_EFAULT";
4086 st = "VPPCOM_ENOMEM";
4090 st = "VPPCOM_EINVAL";
4094 st = "VPPCOM_EBADFD";
4097 case VPPCOM_EAFNOSUPPORT:
4098 st = "VPPCOM_EAFNOSUPPORT";
4101 case VPPCOM_ECONNABORTED:
4102 st = "VPPCOM_ECONNABORTED";
4105 case VPPCOM_ECONNRESET:
4106 st = "VPPCOM_ECONNRESET";
4109 case VPPCOM_ENOTCONN:
4110 st = "VPPCOM_ENOTCONN";
4113 case VPPCOM_ECONNREFUSED:
4114 st = "VPPCOM_ECONNREFUSED";
4117 case VPPCOM_ETIMEDOUT:
4118 st = "VPPCOM_ETIMEDOUT";
4122 st = "UNKNOWN_STATE";
4130 vppcom_add_cert_key_pair (vppcom_cert_key_pair_t *ckpair)
4132 if (vcm->cfg.vpp_app_socket_api)
4134 clib_warning ("not supported");
4135 return VPPCOM_EINVAL;
4137 return vcl_bapi_add_cert_key_pair (ckpair);
4141 vppcom_del_cert_key_pair (uint32_t ckpair_index)
4143 if (vcm->cfg.vpp_app_socket_api)
4145 clib_warning ("not supported");
4146 return VPPCOM_EINVAL;
4148 return vcl_bapi_del_cert_key_pair (ckpair_index);
4152 * fd.io coding-style-patch-verification: ON
4155 * eval: (c-set-style "gnu")