2 * Copyright (c) 2017-2019 Cisco and/or its affiliates.
3 * Licensed under the Apache License, Version 2.0 (the "License");
5 * You may obtain a copy of the License at:
7 * http://www.apache.org/licenses/LICENSE-2.0
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
18 #include <vcl/vppcom.h>
19 #include <vcl/vcl_debug.h>
20 #include <vcl/vcl_private.h>
21 #include <svm/fifo_segment.h>
23 __thread uword __vcl_worker_index = ~0;
26 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
32 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
33 for (i = 0; i < n_msgs; i++)
35 vec_add2 (wrk->mq_msg_vector, msg, 1);
36 svm_msg_q_sub_w_lock (mq, msg);
42 vppcom_session_state_str (vcl_session_state_t state)
48 case VCL_STATE_CLOSED:
51 case VCL_STATE_LISTEN:
57 case VCL_STATE_VPP_CLOSING:
58 st = "STATE_VPP_CLOSING";
60 case VCL_STATE_DISCONNECT:
61 st = "STATE_DISCONNECT";
63 case VCL_STATE_DETACHED:
64 st = "STATE_DETACHED";
66 case VCL_STATE_UPDATED:
69 case VCL_STATE_LISTEN_NO_MQ:
70 st = "STATE_LISTEN_NO_MQ";
81 format_ip4_address (u8 * s, va_list * args)
83 u8 *a = va_arg (*args, u8 *);
84 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
88 format_ip6_address (u8 * s, va_list * args)
90 ip6_address_t *a = va_arg (*args, ip6_address_t *);
91 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
93 i_max_n_zero = ARRAY_LEN (a->as_u16);
95 i_first_zero = i_max_n_zero;
97 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
99 u32 is_zero = a->as_u16[i] == 0;
100 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
106 if ((!is_zero && n_zeros > max_n_zeros)
107 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
109 i_max_n_zero = i_first_zero;
110 max_n_zeros = n_zeros;
111 i_first_zero = ARRAY_LEN (a->as_u16);
116 last_double_colon = 0;
117 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
119 if (i == i_max_n_zero && max_n_zeros > 1)
121 s = format (s, "::");
122 i += max_n_zeros - 1;
123 last_double_colon = 1;
127 s = format (s, "%s%x",
128 (last_double_colon || i == 0) ? "" : ":",
129 clib_net_to_host_u16 (a->as_u16[i]));
130 last_double_colon = 0;
137 /* Format an IP46 address. */
139 format_ip46_address (u8 * s, va_list * args)
141 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
142 ip46_type_t type = va_arg (*args, ip46_type_t);
148 is_ip4 = ip46_address_is_ip4 (ip46);
159 format (s, "%U", format_ip4_address, &ip46->ip4) :
160 format (s, "%U", format_ip6_address, &ip46->ip6);
164 * VPPCOM Utility Functions
168 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
170 app_session_evt_t _app_evt, *app_evt = &_app_evt;
171 session_listen_msg_t *mp;
174 mq = vcl_worker_ctrl_mq (wrk);
175 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
176 mp = (session_listen_msg_t *) app_evt->evt->data;
177 memset (mp, 0, sizeof (*mp));
178 mp->client_index = wrk->api_client_handle;
179 mp->context = s->session_index;
180 mp->wrk_index = wrk->vpp_wrk_index;
181 mp->is_ip4 = s->transport.is_ip4;
182 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
183 mp->port = s->transport.lcl_port;
184 mp->proto = s->session_type;
185 if (s->flags & VCL_SESSION_F_CONNECTED)
186 mp->flags = TRANSPORT_CFG_F_CONNECTED;
187 app_send_ctrl_evt_to_vpp (mq, app_evt);
191 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
193 app_session_evt_t _app_evt, *app_evt = &_app_evt;
194 session_connect_msg_t *mp;
197 mq = vcl_worker_ctrl_mq (wrk);
198 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
199 mp = (session_connect_msg_t *) app_evt->evt->data;
200 memset (mp, 0, sizeof (*mp));
201 mp->client_index = wrk->api_client_handle;
202 mp->context = s->session_index;
203 mp->wrk_index = wrk->vpp_wrk_index;
204 mp->is_ip4 = s->transport.is_ip4;
205 mp->parent_handle = s->parent_handle;
206 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
207 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
208 mp->port = s->transport.rmt_port;
209 mp->lcl_port = s->transport.lcl_port;
210 mp->proto = s->session_type;
211 if (s->flags & VCL_SESSION_F_CONNECTED)
212 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
213 app_send_ctrl_evt_to_vpp (mq, app_evt);
217 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
219 app_session_evt_t _app_evt, *app_evt = &_app_evt;
220 session_unlisten_msg_t *mp;
223 mq = vcl_worker_ctrl_mq (wrk);
224 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
225 mp = (session_unlisten_msg_t *) app_evt->evt->data;
226 memset (mp, 0, sizeof (*mp));
227 mp->client_index = wrk->api_client_handle;
228 mp->wrk_index = wrk->vpp_wrk_index;
229 mp->handle = s->vpp_handle;
230 mp->context = wrk->wrk_index;
231 app_send_ctrl_evt_to_vpp (mq, app_evt);
235 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
237 app_session_evt_t _app_evt, *app_evt = &_app_evt;
238 session_disconnect_msg_t *mp;
241 /* Send to thread that owns the session */
243 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
244 mp = (session_disconnect_msg_t *) app_evt->evt->data;
245 memset (mp, 0, sizeof (*mp));
246 mp->client_index = wrk->api_client_handle;
247 mp->handle = s->vpp_handle;
248 app_send_ctrl_evt_to_vpp (mq, app_evt);
252 vcl_send_app_detach (vcl_worker_t * wrk)
254 app_session_evt_t _app_evt, *app_evt = &_app_evt;
255 session_app_detach_msg_t *mp;
258 mq = vcl_worker_ctrl_mq (wrk);
259 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
260 mp = (session_app_detach_msg_t *) app_evt->evt->data;
261 memset (mp, 0, sizeof (*mp));
262 mp->client_index = wrk->api_client_handle;
263 app_send_ctrl_evt_to_vpp (mq, app_evt);
267 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
268 session_handle_t handle, int retval)
270 app_session_evt_t _app_evt, *app_evt = &_app_evt;
271 session_accepted_reply_msg_t *rmp;
272 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
273 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
274 rmp->handle = handle;
275 rmp->context = context;
276 rmp->retval = retval;
277 app_send_ctrl_evt_to_vpp (mq, app_evt);
281 vcl_send_session_disconnected_reply (vcl_worker_t * wrk, vcl_session_t * s,
284 app_session_evt_t _app_evt, *app_evt = &_app_evt;
285 session_disconnected_reply_msg_t *rmp;
286 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
287 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
288 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
289 rmp->handle = s->vpp_handle;
290 rmp->context = wrk->api_client_handle;
291 rmp->retval = retval;
292 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
296 vcl_send_session_reset_reply (vcl_worker_t * wrk, vcl_session_t * s,
299 app_session_evt_t _app_evt, *app_evt = &_app_evt;
300 session_reset_reply_msg_t *rmp;
301 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
302 SESSION_CTRL_EVT_RESET_REPLY);
303 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
304 rmp->handle = s->vpp_handle;
305 rmp->context = wrk->api_client_handle;
306 rmp->retval = retval;
307 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
311 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
314 app_session_evt_t _app_evt, *app_evt = &_app_evt;
315 session_worker_update_msg_t *mp;
317 app_alloc_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt,
318 SESSION_CTRL_EVT_WORKER_UPDATE);
319 mp = (session_worker_update_msg_t *) app_evt->evt->data;
320 mp->client_index = wrk->api_client_handle;
321 mp->handle = s->vpp_handle;
322 mp->req_wrk_index = wrk->vpp_wrk_index;
323 mp->wrk_index = wrk_index;
324 app_send_ctrl_evt_to_vpp (s->vpp_evt_q, app_evt);
328 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
330 app_session_evt_t _app_evt, *app_evt = &_app_evt;
331 session_app_wrk_rpc_msg_t *mp;
332 vcl_worker_t *dst_wrk, *wrk;
336 if (data_len > sizeof (mp->data))
339 clib_spinlock_lock (&vcm->workers_lock);
341 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
345 wrk = vcl_worker_get_current ();
346 mq = vcl_worker_ctrl_mq (wrk);
347 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
348 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
349 mp->client_index = wrk->api_client_handle;
350 mp->wrk_index = dst_wrk->vpp_wrk_index;
351 clib_memcpy (mp->data, data, data_len);
352 app_send_ctrl_evt_to_vpp (mq, app_evt);
356 clib_spinlock_unlock (&vcm->workers_lock);
361 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
364 vcl_session_t *session, *listen_session;
367 session = vcl_session_alloc (wrk);
369 listen_session = vcl_session_get (wrk, ls_index);
370 if (listen_session->vpp_handle != mp->listener_handle)
372 VDBG (0, "ERROR: listener handle %lu does not match session %u",
373 mp->listener_handle, ls_index);
377 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
379 mp->vpp_event_queue_address, 0, session))
381 VDBG (0, "failed to attach fifos for %u", session->session_index);
385 session->vpp_handle = mp->handle;
386 session->session_state = VCL_STATE_READY;
387 session->transport.rmt_port = mp->rmt.port;
388 session->transport.is_ip4 = mp->rmt.is_ip4;
389 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
390 sizeof (ip46_address_t));
392 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
393 session->transport.lcl_port = listen_session->transport.lcl_port;
394 session->transport.lcl_ip = listen_session->transport.lcl_ip;
395 session->session_type = listen_session->session_type;
396 session->is_dgram = vcl_proto_is_dgram (session->session_type);
397 session->listener_index = listen_session->session_index;
398 listen_session->n_accepted_sessions++;
400 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
401 " port %d queue %p!", session->session_index, mp->handle,
402 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
403 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
404 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
405 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
407 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
408 session->vpp_handle, 0);
410 return session->session_index;
413 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0),
414 mp->vpp_event_queue_address, mp->mq_index, &evt_q);
415 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
416 VNET_API_ERROR_INVALID_ARGUMENT);
417 vcl_session_free (wrk, session);
418 return VCL_INVALID_SESSION_INDEX;
422 vcl_session_connected_handler (vcl_worker_t * wrk,
423 session_connected_msg_t * mp)
425 vcl_session_t *session = 0;
428 session_index = mp->context;
429 session = vcl_session_get (wrk, session_index);
432 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
433 mp->handle, session_index);
434 return VCL_INVALID_SESSION_INDEX;
438 VDBG (0, "ERROR: session index %u: connect failed! %U",
439 session_index, format_session_error, mp->retval);
440 session->session_state = VCL_STATE_DETACHED;
441 session->vpp_handle = mp->handle;
442 return session_index;
445 session->vpp_handle = mp->handle;
447 if (vcl_segment_attach_session (mp->segment_handle, mp->server_rx_fifo,
449 mp->vpp_event_queue_address, 0, session))
451 VDBG (0, "failed to attach fifos for %u", session->session_index);
452 session->session_state = VCL_STATE_DETACHED;
453 vcl_send_session_disconnect (wrk, session);
454 return session_index;
459 if (vcl_segment_attach_session (mp->ct_segment_handle, mp->ct_rx_fifo,
460 mp->ct_tx_fifo, (uword) ~0, 1, session))
462 VDBG (0, "failed to attach ct fifos for %u", session->session_index);
463 session->session_state = VCL_STATE_DETACHED;
464 vcl_send_session_disconnect (wrk, session);
465 return session_index;
469 session->transport.is_ip4 = mp->lcl.is_ip4;
470 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
471 sizeof (session->transport.lcl_ip));
472 session->transport.lcl_port = mp->lcl.port;
474 /* Application closed session before connect reply */
475 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK)
476 && session->session_state == VCL_STATE_CLOSED)
477 vcl_send_session_disconnect (wrk, session);
479 session->session_state = VCL_STATE_READY;
481 /* Add it to lookup table */
482 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
484 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
485 " refcnt %d", session_index, mp->handle, session->rx_fifo,
486 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
488 return session_index;
492 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
494 vcl_session_msg_t *accepted_msg;
497 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
499 accepted_msg = &session->accept_evts_fifo[i];
500 if (accepted_msg->accepted_msg.handle == handle)
502 accepted_msg->flags |= flags;
510 vcl_session_reset_handler (vcl_worker_t * wrk,
511 session_reset_msg_t * reset_msg)
513 vcl_session_t *session;
516 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
517 session = vcl_session_get (wrk, sid);
520 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
521 return VCL_INVALID_SESSION_INDEX;
524 /* Caught a reset before actually accepting the session */
525 if (session->session_state == VCL_STATE_LISTEN)
528 if (!vcl_flag_accepted_session (session, reset_msg->handle,
529 VCL_ACCEPTED_F_RESET))
530 VDBG (0, "session was not accepted!");
531 return VCL_INVALID_SESSION_INDEX;
534 if (session->session_state != VCL_STATE_CLOSED)
535 session->session_state = VCL_STATE_DISCONNECT;
536 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
541 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
543 vcl_session_t *session;
544 u32 sid = mp->context;
546 session = vcl_session_get (wrk, sid);
549 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
550 format_session_error, mp->retval);
553 session->session_state = VCL_STATE_DETACHED;
554 session->vpp_handle = mp->handle;
559 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
561 return VCL_INVALID_SESSION_INDEX;
565 session->vpp_handle = mp->handle;
566 session->transport.is_ip4 = mp->lcl_is_ip4;
567 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
568 sizeof (ip46_address_t));
569 session->transport.lcl_port = mp->lcl_port;
570 vcl_session_table_add_listener (wrk, mp->handle, sid);
571 session->session_state = VCL_STATE_LISTEN;
573 if (vcl_session_is_cl (session))
575 if (vcl_segment_attach_session (mp->segment_handle, mp->rx_fifo,
576 mp->tx_fifo, mp->vpp_evt_q, 0, session))
578 VDBG (0, "failed to attach fifos for %u", session->session_index);
579 session->session_state = VCL_STATE_DETACHED;
580 return VCL_INVALID_SESSION_INDEX;
584 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
589 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
591 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
594 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
597 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
600 if (s->session_state != VCL_STATE_DISCONNECT)
602 /* Connected udp listener */
603 if (s->session_type == VPPCOM_PROTO_UDP
604 && s->session_state == VCL_STATE_CLOSED)
607 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
612 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
613 s->session_index, mp->handle, format_session_error, mp->retval);
615 if (mp->context != wrk->wrk_index)
616 VDBG (0, "wrong context");
618 vcl_session_table_del_vpp_handle (wrk, mp->handle);
619 vcl_session_free (wrk, s);
623 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
625 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
629 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
632 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
636 fs_index = vcl_segment_table_lookup (mp->segment_handle);
637 if (fs_index == VCL_INVALID_SEGMENT_INDEX)
639 VDBG (0, "segment for session %u is not mounted!", s->session_index);
640 s->session_state = VCL_STATE_DETACHED;
644 s->vpp_handle = mp->new_handle;
646 vcl_segment_attach_mq (vcl_vpp_worker_segment_handle (0), mp->vpp_evt_q,
647 mp->vpp_thread_index, &s->vpp_evt_q);
649 vcl_session_table_del_vpp_handle (wrk, mp->handle);
650 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
652 /* Generate new tx event if we have outstanding data */
653 if (svm_fifo_has_event (s->tx_fifo))
654 app_send_io_evt_to_vpp (s->vpp_evt_q,
655 s->tx_fifo->shr->master_session_index,
656 SESSION_IO_EVT_TX, SVM_Q_WAIT);
658 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
659 mp->vpp_thread_index, mp->new_handle);
662 static vcl_session_t *
663 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
665 vcl_session_msg_t *vcl_msg;
666 vcl_session_t *session;
668 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
669 if (PREDICT_FALSE (session != 0))
670 VWRN ("session overlap handle %lu state %u!", msg->handle,
671 session->session_state);
673 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
676 VERR ("couldn't find listen session: listener handle %llx",
677 msg->listener_handle);
681 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
683 vcl_msg->accepted_msg = *msg;
684 /* Session handle points to listener until fully accepted by app */
685 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
690 static vcl_session_t *
691 vcl_session_disconnected_handler (vcl_worker_t * wrk,
692 session_disconnected_msg_t * msg)
694 vcl_session_t *session;
696 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
699 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
703 /* Late disconnect notification on a session that has been closed */
704 if (session->session_state == VCL_STATE_CLOSED)
707 /* Caught a disconnect before actually accepting the session */
708 if (session->session_state == VCL_STATE_LISTEN)
710 if (!vcl_flag_accepted_session (session, msg->handle,
711 VCL_ACCEPTED_F_CLOSED))
712 VDBG (0, "session was not accepted!");
716 /* If not already reset change state */
717 if (session->session_state != VCL_STATE_DISCONNECT)
718 session->session_state = VCL_STATE_VPP_CLOSING;
724 vppcom_session_disconnect (u32 session_handle)
726 vcl_worker_t *wrk = vcl_worker_get_current ();
727 vcl_session_t *session, *listen_session;
728 vcl_session_state_t state;
731 session = vcl_session_get_w_handle (wrk, session_handle);
733 return VPPCOM_EBADFD;
735 vpp_handle = session->vpp_handle;
736 state = session->session_state;
738 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
739 vpp_handle, state, vppcom_session_state_str (state));
741 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
743 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
744 return VPPCOM_EBADFD;
747 if (state == VCL_STATE_VPP_CLOSING)
749 vcl_send_session_disconnected_reply (wrk, session, 0);
750 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
751 session->session_index, vpp_handle);
755 /* Session doesn't have an event queue yet. Probably a non-blocking
756 * connect. Wait for the reply */
757 if (PREDICT_FALSE (!session->vpp_evt_q))
760 VDBG (1, "session %u [0x%llx]: sending disconnect...",
761 session->session_index, vpp_handle);
762 vcl_send_session_disconnect (wrk, session);
765 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
767 listen_session = vcl_session_get (wrk, session->listener_index);
768 listen_session->n_accepted_sessions--;
775 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
777 session_cleanup_msg_t *msg;
778 vcl_session_t *session;
780 msg = (session_cleanup_msg_t *) data;
781 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
784 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
788 if (msg->type == SESSION_CLEANUP_TRANSPORT)
790 /* Transport was cleaned up before we confirmed close. Probably the
791 * app is still waiting for some data that cannot be delivered.
792 * Confirm close to make sure everything is cleaned up.
793 * Move to undetermined state to ensure that the session is not
794 * removed before both vpp and the app cleanup.
795 * - If the app closes first, the session is moved to CLOSED state
796 * and the session cleanup notification from vpp removes the
798 * - If vpp cleans up the session first, the session is moved to
799 * DETACHED state lower and subsequently the close from the app
802 if (session->session_state == VCL_STATE_VPP_CLOSING)
804 vppcom_session_disconnect (vcl_session_handle (session));
805 session->session_state = VCL_STATE_UPDATED;
807 else if (session->session_state == VCL_STATE_DISCONNECT)
809 vcl_send_session_reset_reply (wrk, session, 0);
810 session->session_state = VCL_STATE_UPDATED;
815 vcl_session_table_del_vpp_handle (wrk, msg->handle);
816 /* Should not happen. App did not close the connection so don't free it. */
817 if (session->session_state != VCL_STATE_CLOSED)
819 VDBG (0, "app did not close session %d", session->session_index);
820 session->session_state = VCL_STATE_DETACHED;
821 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
824 vcl_session_free (wrk, session);
828 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
830 session_req_worker_update_msg_t *msg;
833 msg = (session_req_worker_update_msg_t *) data;
834 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
838 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
842 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
844 session_worker_update_reply_msg_t *msg;
847 msg = (session_worker_update_reply_msg_t *) data;
848 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
851 VDBG (0, "unknown handle 0x%llx", msg->handle);
857 if (vcl_segment_attach_session (msg->segment_handle, msg->rx_fifo,
858 msg->tx_fifo, (uword) ~0, 0, s))
860 VDBG (0, "failed to attach fifos for %u", s->session_index);
864 s->session_state = VCL_STATE_UPDATED;
866 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
867 s->vpp_handle, wrk->wrk_index);
871 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
874 if (vcm->cfg.vpp_app_socket_api)
875 return vcl_sapi_recv_fds (wrk, fds, n_fds);
877 return vcl_bapi_recv_fds (wrk, fds, n_fds);
881 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
883 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
884 session_app_add_segment_msg_t *msg;
888 msg = (session_app_add_segment_msg_t *) data;
892 vcl_api_recv_fd (wrk, &fd, 1);
893 seg_type = SSVM_SEGMENT_MEMFD;
896 segment_handle = msg->segment_handle;
897 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
899 clib_warning ("invalid segment handle");
903 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
906 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
910 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
915 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
917 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
918 vcl_segment_detach (msg->segment_handle);
919 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
923 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
925 if (!vcm->wrk_rpc_fn)
928 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
932 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
934 session_disconnected_msg_t *disconnected_msg;
935 session_connected_msg_t *connected_msg;
936 session_reset_msg_t *reset_msg;
937 session_event_t *ecpy;
941 switch (e->event_type)
943 case SESSION_IO_EVT_RX:
944 case SESSION_IO_EVT_TX:
945 s = vcl_session_get (wrk, e->session_index);
946 if (!s || !vcl_session_is_open (s))
948 vec_add1 (wrk->unhandled_evts_vector, *e);
950 case SESSION_CTRL_EVT_BOUND:
951 /* We can only wait for only one listen so not postponed */
952 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
954 case SESSION_CTRL_EVT_ACCEPTED:
955 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
956 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
958 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
961 ecpy->session_index = s->session_index;
964 case SESSION_CTRL_EVT_CONNECTED:
965 connected_msg = (session_connected_msg_t *) e->data;
966 sid = vcl_session_connected_handler (wrk, connected_msg);
967 if (!(s = vcl_session_get (wrk, sid)))
969 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
971 vec_add2 (wrk->unhandled_evts_vector, ecpy, 1);
974 ecpy->session_index = s->session_index;
977 case SESSION_CTRL_EVT_DISCONNECTED:
978 disconnected_msg = (session_disconnected_msg_t *) e->data;
979 if (!(s = vcl_session_get_w_vpp_handle (wrk, disconnected_msg->handle)))
981 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
983 vec_add1 (wrk->unhandled_evts_vector, *e);
986 if (!(s = vcl_session_disconnected_handler (wrk, disconnected_msg)))
988 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
991 case SESSION_CTRL_EVT_RESET:
992 reset_msg = (session_reset_msg_t *) e->data;
993 if (!(s = vcl_session_get_w_vpp_handle (wrk, reset_msg->handle)))
995 if (vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
997 vec_add1 (wrk->unhandled_evts_vector, *e);
1000 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
1002 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
1003 vcl_session_unlisten_reply_handler (wrk, e->data);
1005 case SESSION_CTRL_EVT_MIGRATED:
1006 vcl_session_migrated_handler (wrk, e->data);
1008 case SESSION_CTRL_EVT_CLEANUP:
1009 vcl_session_cleanup_handler (wrk, e->data);
1011 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
1012 vcl_session_req_worker_update_handler (wrk, e->data);
1014 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
1015 vcl_session_worker_update_reply_handler (wrk, e->data);
1017 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
1018 vcl_session_app_add_segment_handler (wrk, e->data);
1020 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
1021 vcl_session_app_del_segment_handler (wrk, e->data);
1023 case SESSION_CTRL_EVT_APP_WRK_RPC:
1024 vcl_worker_rpc_handler (wrk, e->data);
1027 clib_warning ("unhandled %u", e->event_type);
1033 vppcom_wait_for_session_state_change (u32 session_index,
1034 vcl_session_state_t state,
1037 vcl_worker_t *wrk = vcl_worker_get_current ();
1038 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
1039 vcl_session_t *volatile session;
1040 svm_msg_q_msg_t msg;
1045 session = vcl_session_get (wrk, session_index);
1046 if (PREDICT_FALSE (!session))
1048 return VPPCOM_EBADFD;
1050 if (session->session_state == state)
1054 if (session->session_state == VCL_STATE_DETACHED)
1056 return VPPCOM_ECONNREFUSED;
1059 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1064 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1065 vcl_handle_mq_event (wrk, e);
1066 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1068 while (clib_time_now (&wrk->clib_time) < timeout);
1070 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1071 vppcom_session_state_str (state));
1072 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1074 return VPPCOM_ETIMEDOUT;
1078 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1080 vcl_session_state_t state;
1084 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1087 vec_foreach (sip, wrk->pending_session_wrk_updates)
1089 s = vcl_session_get (wrk, *sip);
1090 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1091 state = s->session_state;
1092 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1094 s->session_state = state;
1096 vec_reset_length (wrk->pending_session_wrk_updates);
1100 vcl_flush_mq_events (void)
1102 vcl_worker_t *wrk = vcl_worker_get_current ();
1103 svm_msg_q_msg_t *msg;
1108 mq = wrk->app_event_queue;
1109 svm_msg_q_lock (mq);
1110 vcl_mq_dequeue_batch (wrk, mq, ~0);
1111 svm_msg_q_unlock (mq);
1113 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1115 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1116 e = svm_msg_q_msg_data (mq, msg);
1117 vcl_handle_mq_event (wrk, e);
1118 svm_msg_q_free_msg (mq, msg);
1120 vec_reset_length (wrk->mq_msg_vector);
1121 vcl_handle_pending_wrk_updates (wrk);
1125 vppcom_session_unbind (u32 session_handle)
1127 vcl_worker_t *wrk = vcl_worker_get_current ();
1128 session_accepted_msg_t *accepted_msg;
1129 vcl_session_t *session = 0;
1130 vcl_session_msg_t *evt;
1132 session = vcl_session_get_w_handle (wrk, session_handle);
1134 return VPPCOM_EBADFD;
1136 /* Flush pending accept events, if any */
1137 while (clib_fifo_elts (session->accept_evts_fifo))
1139 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1140 accepted_msg = &evt->accepted_msg;
1141 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1142 vcl_send_session_accepted_reply (session->vpp_evt_q,
1143 accepted_msg->context,
1144 accepted_msg->handle, -1);
1146 clib_fifo_free (session->accept_evts_fifo);
1148 vcl_send_session_unlisten (wrk, session);
1150 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1151 session->vpp_handle);
1152 vcl_evt (VCL_EVT_UNBIND, session);
1154 session->vpp_handle = ~0;
1155 session->session_state = VCL_STATE_DISCONNECT;
1163 * Notify vpp of the disconnect and mark the worker as free. If we're the
1164 * last worker, do a full cleanup otherwise, since we're probably a forked
1165 * child, avoid syscalls as much as possible. We might've lost privileges.
1168 vppcom_app_exit (void)
1170 if (!pool_elts (vcm->workers))
1172 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1173 vcl_set_worker_index (~0);
1174 vcl_elog_stop (vcm);
1178 vcl_api_attach (void)
1180 if (vcm->cfg.vpp_app_socket_api)
1181 return vcl_sapi_attach ();
1183 return vcl_bapi_attach ();
1187 vcl_api_detach (vcl_worker_t * wrk)
1189 vcl_send_app_detach (wrk);
1191 if (vcm->cfg.vpp_app_socket_api)
1192 return vcl_sapi_detach (wrk);
1194 return vcl_bapi_disconnect_from_vpp ();
1198 * VPPCOM Public API functions
1201 vppcom_app_create (const char *app_name)
1203 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1208 VDBG (1, "already initialized");
1209 return VPPCOM_EEXIST;
1213 vppcom_cfg (&vcm->cfg);
1214 vcl_cfg = &vcm->cfg;
1216 vcm->main_cpu = pthread_self ();
1217 vcm->main_pid = getpid ();
1218 vcm->app_name = format (0, "%s", app_name);
1219 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1220 20 /* timeout in secs */ );
1221 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1222 clib_spinlock_init (&vcm->workers_lock);
1223 clib_rwlock_init (&vcm->segment_table_lock);
1224 atexit (vppcom_app_exit);
1225 vcl_elog_init (vcm);
1227 /* Allocate default worker */
1228 vcl_worker_alloc_and_init ();
1230 if ((rv = vcl_api_attach ()))
1233 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1234 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1240 vppcom_app_destroy (void)
1242 vcl_worker_t *wrk, *current_wrk;
1245 if (!pool_elts (vcm->workers))
1248 vcl_evt (VCL_EVT_DETACH, vcm);
1250 current_wrk = vcl_worker_get_current ();
1253 pool_foreach (wrk, vcm->workers) {
1254 if (current_wrk != wrk)
1255 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1259 vcl_api_detach (current_wrk);
1260 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1262 vcl_elog_stop (vcm);
1265 * Free the heap and fix vcm
1267 heap = clib_mem_get_heap ();
1268 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1270 vcm = &_vppcom_main;
1275 vppcom_session_create (u8 proto, u8 is_nonblocking)
1277 vcl_worker_t *wrk = vcl_worker_get_current ();
1278 vcl_session_t *session;
1280 session = vcl_session_alloc (wrk);
1282 session->session_type = proto;
1283 session->session_state = VCL_STATE_CLOSED;
1284 session->vpp_handle = ~0;
1285 session->is_dgram = vcl_proto_is_dgram (proto);
1288 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
1290 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1291 is_nonblocking, session_index);
1293 VDBG (0, "created session %u", session->session_index);
1295 return vcl_session_handle (session);
1299 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1300 vcl_session_handle_t sh, u8 do_disconnect)
1304 VDBG (1, "session %u [0x%llx] closing", s->session_index, s->vpp_handle);
1306 if (s->flags & VCL_SESSION_F_IS_VEP)
1308 u32 next_sh = s->vep.next_sh;
1309 while (next_sh != ~0)
1311 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1312 if (PREDICT_FALSE (rv < 0))
1313 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1314 " failed! rv %d (%s)", s->vpp_handle, next_sh,
1315 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1316 next_sh = s->vep.next_sh;
1321 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
1323 rv = vppcom_epoll_ctl (s->vep.vep_sh, EPOLL_CTL_DEL, sh, 0);
1325 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1326 "failed! rv %d (%s)", s->session_index, s->vpp_handle,
1327 s->vep.vep_sh, rv, vppcom_retval_str (rv));
1332 VDBG (1, "session %u [0x%llx] disconnect skipped",
1333 s->session_index, s->vpp_handle);
1337 if (s->session_state == VCL_STATE_LISTEN)
1339 rv = vppcom_session_unbind (sh);
1340 if (PREDICT_FALSE (rv < 0))
1341 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1342 "rv %d (%s)", s->session_index, s->vpp_handle, rv,
1343 vppcom_retval_str (rv));
1346 else if (vcl_session_is_ready (s)
1347 || (vcl_session_is_connectable_listener (wrk, s)))
1349 rv = vppcom_session_disconnect (sh);
1350 if (PREDICT_FALSE (rv < 0))
1351 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1352 " rv %d (%s)", s->session_index, s->vpp_handle,
1353 rv, vppcom_retval_str (rv));
1355 else if (s->session_state == VCL_STATE_DISCONNECT)
1357 vcl_send_session_reset_reply (wrk, s, 0);
1359 else if (s->session_state == VCL_STATE_DETACHED)
1361 /* Should not happen. VPP cleaned up before app confirmed close */
1362 VDBG (0, "vpp freed session %d before close", s->session_index);
1366 s->session_state = VCL_STATE_CLOSED;
1368 /* Session is removed only after vpp confirms the disconnect */
1372 vcl_session_table_del_vpp_handle (wrk, s->vpp_handle);
1374 vcl_session_free (wrk, s);
1375 vcl_evt (VCL_EVT_CLOSE, s, rv);
1381 vppcom_session_close (uint32_t session_handle)
1383 vcl_worker_t *wrk = vcl_worker_get_current ();
1384 vcl_session_t *session;
1386 session = vcl_session_get_w_handle (wrk, session_handle);
1388 return VPPCOM_EBADFD;
1389 return vcl_session_cleanup (wrk, session, session_handle,
1390 1 /* do_disconnect */ );
1394 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1396 vcl_worker_t *wrk = vcl_worker_get_current ();
1397 vcl_session_t *session = 0;
1400 return VPPCOM_EINVAL;
1402 session = vcl_session_get_w_handle (wrk, session_handle);
1404 return VPPCOM_EBADFD;
1406 if (session->flags & VCL_SESSION_F_IS_VEP)
1408 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1409 session->session_index);
1410 return VPPCOM_EBADFD;
1413 session->transport.is_ip4 = ep->is_ip4;
1415 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1416 sizeof (ip4_address_t));
1418 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1419 sizeof (ip6_address_t));
1420 session->transport.lcl_port = ep->port;
1422 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1423 "proto %s", session->session_index, session_handle,
1424 session->transport.is_ip4 ? "IPv4" : "IPv6",
1425 format_ip46_address, &session->transport.lcl_ip,
1426 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1427 clib_net_to_host_u16 (session->transport.lcl_port),
1428 vppcom_proto_str (session->session_type));
1429 vcl_evt (VCL_EVT_BIND, session);
1431 if (session->session_type == VPPCOM_PROTO_UDP)
1432 vppcom_session_listen (session_handle, 10);
1438 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1440 vcl_worker_t *wrk = vcl_worker_get_current ();
1441 vcl_session_t *listen_session = 0;
1442 u64 listen_vpp_handle;
1445 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1446 if (!listen_session || (listen_session->flags & VCL_SESSION_F_IS_VEP))
1447 return VPPCOM_EBADFD;
1449 if (q_len == 0 || q_len == ~0)
1450 q_len = vcm->cfg.listen_queue_size;
1452 listen_vpp_handle = listen_session->vpp_handle;
1453 if (listen_session->session_state == VCL_STATE_LISTEN)
1455 VDBG (0, "session %u [0x%llx]: already in listen state!",
1456 listen_sh, listen_vpp_handle);
1460 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1463 * Send listen request to vpp and wait for reply
1465 vcl_send_session_listen (wrk, listen_session);
1466 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1468 vcm->cfg.session_timeout);
1470 if (PREDICT_FALSE (rv))
1472 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1473 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1474 listen_sh, listen_session->vpp_handle, rv,
1475 vppcom_retval_str (rv));
1483 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1485 if (ls->flags & VCL_SESSION_F_IS_VEP)
1487 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1489 return VPPCOM_EBADFD;
1492 if ((ls->session_state != VCL_STATE_LISTEN)
1493 && (!vcl_session_is_connectable_listener (wrk, ls)))
1495 VDBG (0, "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1496 " (%s)", ls->vpp_handle, ls->session_state,
1497 vppcom_session_state_str (ls->session_state));
1498 return VPPCOM_EBADFD;
1504 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1506 if (!strcmp (proto_str, "TCP"))
1507 *proto = VPPCOM_PROTO_TCP;
1508 else if (!strcmp (proto_str, "tcp"))
1509 *proto = VPPCOM_PROTO_TCP;
1510 else if (!strcmp (proto_str, "UDP"))
1511 *proto = VPPCOM_PROTO_UDP;
1512 else if (!strcmp (proto_str, "udp"))
1513 *proto = VPPCOM_PROTO_UDP;
1514 else if (!strcmp (proto_str, "TLS"))
1515 *proto = VPPCOM_PROTO_TLS;
1516 else if (!strcmp (proto_str, "tls"))
1517 *proto = VPPCOM_PROTO_TLS;
1518 else if (!strcmp (proto_str, "QUIC"))
1519 *proto = VPPCOM_PROTO_QUIC;
1520 else if (!strcmp (proto_str, "quic"))
1521 *proto = VPPCOM_PROTO_QUIC;
1528 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1531 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1532 vcl_worker_t *wrk = vcl_worker_get_current ();
1533 session_accepted_msg_t accepted_msg;
1534 vcl_session_t *listen_session = 0;
1535 vcl_session_t *client_session = 0;
1536 vcl_session_msg_t *evt;
1537 svm_msg_q_msg_t msg;
1542 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1543 if (!listen_session)
1544 return VPPCOM_EBADFD;
1546 listen_session_index = listen_session->session_index;
1547 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1550 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1552 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1553 accept_flags = evt->flags;
1554 accepted_msg = evt->accepted_msg;
1558 is_nonblocking = vcl_session_has_attr (listen_session,
1559 VCL_SESS_ATTR_NONBLOCK);
1562 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1563 return VPPCOM_EAGAIN;
1565 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1566 return VPPCOM_EAGAIN;
1568 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1569 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1571 vcl_handle_mq_event (wrk, e);
1572 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1575 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1576 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1582 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1583 listen_session_index);
1584 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1585 return VPPCOM_ECONNABORTED;
1587 listen_session = vcl_session_get (wrk, listen_session_index);
1588 client_session = vcl_session_get (wrk, client_session_index);
1590 if (flags & O_NONBLOCK)
1591 vcl_session_set_attr (client_session, VCL_SESS_ATTR_NONBLOCK);
1593 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1594 " flags %d, is_nonblocking %u", listen_session->session_index,
1595 listen_session->vpp_handle, client_session_index,
1596 client_session->vpp_handle, flags,
1597 vcl_session_has_attr (client_session, VCL_SESS_ATTR_NONBLOCK));
1601 ep->is_ip4 = client_session->transport.is_ip4;
1602 ep->port = client_session->transport.rmt_port;
1603 if (client_session->transport.is_ip4)
1604 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1605 sizeof (ip4_address_t));
1607 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1608 sizeof (ip6_address_t));
1611 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1612 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1613 client_session_index, client_session->vpp_handle,
1614 format_ip46_address, &client_session->transport.rmt_ip,
1615 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1616 clib_net_to_host_u16 (client_session->transport.rmt_port),
1617 format_ip46_address, &client_session->transport.lcl_ip,
1618 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1619 clib_net_to_host_u16 (client_session->transport.lcl_port));
1620 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1621 client_session_index);
1624 * Session might have been closed already
1628 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1629 client_session->session_state = VCL_STATE_VPP_CLOSING;
1630 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1631 client_session->session_state = VCL_STATE_DISCONNECT;
1633 return vcl_session_handle (client_session);
1637 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1639 vcl_worker_t *wrk = vcl_worker_get_current ();
1640 vcl_session_t *session = 0;
1644 session = vcl_session_get_w_handle (wrk, session_handle);
1646 return VPPCOM_EBADFD;
1647 session_index = session->session_index;
1649 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1651 VDBG (0, "ERROR: cannot connect epoll session %u!",
1652 session->session_index);
1653 return VPPCOM_EBADFD;
1656 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1658 VDBG (0, "session handle %u [0x%llx]: session already "
1659 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1660 session_handle, session->vpp_handle,
1661 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1662 &session->transport.rmt_ip, session->transport.is_ip4 ?
1663 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1664 clib_net_to_host_u16 (session->transport.rmt_port),
1665 vppcom_proto_str (session->session_type), session->session_state,
1666 vppcom_session_state_str (session->session_state));
1670 /* Attempt to connect a connectionless listener */
1671 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1673 if (session->session_type != VPPCOM_PROTO_UDP)
1674 return VPPCOM_EINVAL;
1675 vcl_send_session_unlisten (wrk, session);
1676 session->session_state = VCL_STATE_CLOSED;
1679 session->transport.is_ip4 = server_ep->is_ip4;
1680 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1681 session->transport.rmt_port = server_ep->port;
1682 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1683 session->flags |= VCL_SESSION_F_CONNECTED;
1685 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1686 "port %d proto %s", session_handle,
1687 vppcom_session_state_str (session->session_state),
1688 session->transport.is_ip4 ? "IPv4" : "IPv6",
1689 format_ip46_address,
1690 &session->transport.rmt_ip, session->transport.is_ip4 ?
1691 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1692 clib_net_to_host_u16 (session->transport.rmt_port),
1693 vppcom_proto_str (session->session_type));
1695 vcl_send_session_connect (wrk, session);
1697 if (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK))
1699 /* State set to STATE_UPDATED to ensure the session is not assumed
1700 * to be ready and to also allow the app to close it prior to vpp's
1701 * connected reply. */
1702 session->session_state = VCL_STATE_UPDATED;
1703 return VPPCOM_EINPROGRESS;
1707 * Wait for reply from vpp if blocking
1709 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1710 vcm->cfg.session_timeout);
1712 session = vcl_session_get (wrk, session_index);
1713 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1714 session->vpp_handle, rv ? "failed" : "succeeded");
1720 vppcom_session_stream_connect (uint32_t session_handle,
1721 uint32_t parent_session_handle)
1723 vcl_worker_t *wrk = vcl_worker_get_current ();
1724 vcl_session_t *session, *parent_session;
1725 u32 session_index, parent_session_index;
1728 session = vcl_session_get_w_handle (wrk, session_handle);
1730 return VPPCOM_EBADFD;
1731 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1732 if (!parent_session)
1733 return VPPCOM_EBADFD;
1735 session_index = session->session_index;
1736 parent_session_index = parent_session->session_index;
1737 if (PREDICT_FALSE (session->flags & VCL_SESSION_F_IS_VEP))
1739 VDBG (0, "ERROR: cannot connect epoll session %u!",
1740 session->session_index);
1741 return VPPCOM_EBADFD;
1744 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1746 VDBG (0, "session handle %u [0x%llx]: session already "
1747 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1748 session_handle, session->vpp_handle,
1749 parent_session_handle, parent_session->vpp_handle,
1750 vppcom_proto_str (session->session_type), session->session_state,
1751 vppcom_session_state_str (session->session_state));
1755 /* Connect to quic session specifics */
1756 session->transport.is_ip4 = parent_session->transport.is_ip4;
1757 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1758 session->transport.rmt_port = 0;
1759 session->parent_handle = parent_session->vpp_handle;
1761 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1762 session_handle, parent_session_handle, parent_session->vpp_handle);
1765 * Send connect request and wait for reply from vpp
1767 vcl_send_session_connect (wrk, session);
1768 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_READY,
1769 vcm->cfg.session_timeout);
1771 session->listener_index = parent_session_index;
1772 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1774 parent_session->n_accepted_sessions++;
1776 session = vcl_session_get (wrk, session_index);
1777 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1778 session->vpp_handle, rv ? "failed" : "succeeded");
1784 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1786 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1790 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1793 vcl_worker_t *wrk = vcl_worker_get_current ();
1794 int rv, n_read = 0, is_nonblocking;
1795 vcl_session_t *s = 0;
1796 svm_fifo_t *rx_fifo;
1797 svm_msg_q_msg_t msg;
1802 if (PREDICT_FALSE (!buf))
1803 return VPPCOM_EINVAL;
1805 s = vcl_session_get_w_handle (wrk, session_handle);
1806 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1807 return VPPCOM_EBADFD;
1809 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1811 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1812 s->session_index, s->vpp_handle, s->session_state,
1813 vppcom_session_state_str (s->session_state));
1814 return vcl_session_closed_error (s);
1817 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1818 is_ct = vcl_session_is_ct (s);
1819 mq = wrk->app_event_queue;
1820 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1821 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1823 if (svm_fifo_is_empty_cons (rx_fifo))
1827 if (vcl_session_is_closing (s))
1828 return vcl_session_closing_error (s);
1830 svm_fifo_unset_event (s->rx_fifo);
1831 svm_fifo_unset_event (rx_fifo);
1832 return VPPCOM_EWOULDBLOCK;
1834 while (svm_fifo_is_empty_cons (rx_fifo))
1836 if (vcl_session_is_closing (s))
1837 return vcl_session_closing_error (s);
1840 svm_fifo_unset_event (s->rx_fifo);
1841 svm_fifo_unset_event (rx_fifo);
1842 svm_msg_q_lock (mq);
1843 if (svm_msg_q_is_empty (mq))
1844 svm_msg_q_wait (mq);
1846 svm_msg_q_sub_w_lock (mq, &msg);
1847 e = svm_msg_q_msg_data (mq, &msg);
1848 svm_msg_q_unlock (mq);
1849 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1850 vcl_handle_mq_event (wrk, e);
1851 svm_msg_q_free_msg (mq, &msg);
1858 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1860 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1865 if (svm_fifo_is_empty_cons (rx_fifo))
1868 svm_fifo_unset_event (s->rx_fifo);
1869 svm_fifo_unset_event (rx_fifo);
1870 if (!svm_fifo_is_empty_cons (rx_fifo)
1871 && svm_fifo_set_event (rx_fifo) && is_nonblocking)
1873 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1874 e->event_type = SESSION_IO_EVT_RX;
1875 e->session_index = s->session_index;
1878 else if (PREDICT_FALSE (rv < n && !s->is_dgram))
1880 /* More data enqueued while reading. Try to drain it
1881 * or fill the buffer. Avoid doing that for dgrams */
1887 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1889 svm_fifo_clear_deq_ntf (rx_fifo);
1890 app_send_io_evt_to_vpp (s->vpp_evt_q,
1891 s->rx_fifo->shr->master_session_index,
1892 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1895 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1896 s->vpp_handle, n_read, rx_fifo);
1902 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1904 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1908 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1910 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1914 vppcom_session_read_segments (uint32_t session_handle,
1915 vppcom_data_segment_t * ds, uint32_t n_segments,
1918 vcl_worker_t *wrk = vcl_worker_get_current ();
1919 int n_read = 0, is_nonblocking;
1920 vcl_session_t *s = 0;
1921 svm_fifo_t *rx_fifo;
1922 svm_msg_q_msg_t msg;
1927 s = vcl_session_get_w_handle (wrk, session_handle);
1928 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
1929 return VPPCOM_EBADFD;
1931 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1932 return vcl_session_closed_error (s);
1934 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
1935 is_ct = vcl_session_is_ct (s);
1936 mq = wrk->app_event_queue;
1937 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1938 s->flags &= ~VCL_SESSION_F_HAS_RX_EVT;
1940 if (svm_fifo_is_empty_cons (rx_fifo))
1945 svm_fifo_unset_event (s->rx_fifo);
1946 svm_fifo_unset_event (rx_fifo);
1947 return VPPCOM_EWOULDBLOCK;
1949 while (svm_fifo_is_empty_cons (rx_fifo))
1951 if (vcl_session_is_closing (s))
1952 return vcl_session_closing_error (s);
1955 svm_fifo_unset_event (s->rx_fifo);
1956 svm_fifo_unset_event (rx_fifo);
1957 svm_msg_q_lock (mq);
1958 if (svm_msg_q_is_empty (mq))
1959 svm_msg_q_wait (mq);
1961 svm_msg_q_sub_w_lock (mq, &msg);
1962 e = svm_msg_q_msg_data (mq, &msg);
1963 svm_msg_q_unlock (mq);
1964 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1965 vcl_handle_mq_event (wrk, e);
1966 svm_msg_q_free_msg (mq, &msg);
1970 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1971 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1973 return VPPCOM_EAGAIN;
1975 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1978 svm_fifo_unset_event (s->rx_fifo);
1979 svm_fifo_unset_event (rx_fifo);
1980 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1981 && svm_fifo_set_event (rx_fifo)
1982 && vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK))
1985 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1986 e->event_type = SESSION_IO_EVT_RX;
1987 e->session_index = s->session_index;
1991 s->rx_bytes_pending += n_read;
1996 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
1998 vcl_worker_t *wrk = vcl_worker_get_current ();
2002 s = vcl_session_get_w_handle (wrk, session_handle);
2003 if (PREDICT_FALSE (!s || (s->flags & VCL_SESSION_F_IS_VEP)))
2006 is_ct = vcl_session_is_ct (s);
2007 svm_fifo_dequeue_drop (is_ct ? s->ct_rx_fifo : s->rx_fifo, n_bytes);
2009 ASSERT (s->rx_bytes_pending < n_bytes);
2010 s->rx_bytes_pending -= n_bytes;
2014 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2016 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2020 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2022 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2024 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2030 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2031 size_t n, u8 is_flush, u8 is_dgram)
2033 int n_write, is_nonblocking;
2034 session_evt_type_t et;
2035 svm_msg_q_msg_t msg;
2036 svm_fifo_t *tx_fifo;
2041 if (PREDICT_FALSE (!buf || n == 0))
2042 return VPPCOM_EINVAL;
2044 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2046 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2047 " session!", s->session_index, s->vpp_handle);
2048 return VPPCOM_EBADFD;
2051 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2053 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2054 s->session_index, s->vpp_handle, s->session_state,
2055 vppcom_session_state_str (s->session_state));
2056 return vcl_session_closed_error (s);;
2059 is_ct = vcl_session_is_ct (s);
2060 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2061 is_nonblocking = vcl_session_has_attr (s, VCL_SESS_ATTR_NONBLOCK);
2063 mq = wrk->app_event_queue;
2064 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2068 return VPPCOM_EWOULDBLOCK;
2070 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2072 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2073 if (vcl_session_is_closing (s))
2074 return vcl_session_closing_error (s);
2075 svm_msg_q_lock (mq);
2076 if (svm_msg_q_is_empty (mq))
2077 svm_msg_q_wait (mq);
2079 svm_msg_q_sub_w_lock (mq, &msg);
2080 e = svm_msg_q_msg_data (mq, &msg);
2081 svm_msg_q_unlock (mq);
2083 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2084 vcl_handle_mq_event (wrk, e);
2085 svm_msg_q_free_msg (mq, &msg);
2089 et = SESSION_IO_EVT_TX;
2090 if (is_flush && !is_ct)
2091 et = SESSION_IO_EVT_TX_FLUSH;
2094 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2095 s->vpp_evt_q, buf, n, et,
2096 0 /* do_evt */ , SVM_Q_WAIT);
2098 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2099 0 /* do_evt */ , SVM_Q_WAIT);
2101 if (svm_fifo_set_event (s->tx_fifo))
2102 app_send_io_evt_to_vpp (
2103 s->vpp_evt_q, s->tx_fifo->shr->master_session_index, et, SVM_Q_WAIT);
2105 /* The underlying fifo segment can run out of memory */
2106 if (PREDICT_FALSE (n_write < 0))
2107 return VPPCOM_EAGAIN;
2109 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2110 s->vpp_handle, n_write);
2116 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2118 vcl_worker_t *wrk = vcl_worker_get_current ();
2121 s = vcl_session_get_w_handle (wrk, session_handle);
2122 if (PREDICT_FALSE (!s))
2123 return VPPCOM_EBADFD;
2125 return vppcom_session_write_inline (wrk, s, buf, n,
2126 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2130 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2132 vcl_worker_t *wrk = vcl_worker_get_current ();
2135 s = vcl_session_get_w_handle (wrk, session_handle);
2136 if (PREDICT_FALSE (!s))
2137 return VPPCOM_EBADFD;
2139 return vppcom_session_write_inline (wrk, s, buf, n,
2140 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2143 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2144 if (PREDICT_FALSE (!_s->rx_fifo)) \
2146 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2148 if (!vcl_session_is_ct (_s)) \
2150 svm_fifo_unset_event (_s->rx_fifo); \
2151 if (svm_fifo_is_empty (_s->rx_fifo)) \
2154 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2156 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2157 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2163 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2164 unsigned long n_bits, unsigned long *read_map,
2165 unsigned long *write_map,
2166 unsigned long *except_map, u32 * bits_set)
2168 session_disconnected_msg_t *disconnected_msg;
2169 session_connected_msg_t *connected_msg;
2173 switch (e->event_type)
2175 case SESSION_IO_EVT_RX:
2176 sid = e->session_index;
2177 s = vcl_session_get (wrk, sid);
2178 if (!s || !vcl_session_is_open (s))
2180 vcl_fifo_rx_evt_valid_or_break (s);
2181 if (sid < n_bits && read_map)
2183 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2187 case SESSION_IO_EVT_TX:
2188 sid = e->session_index;
2189 s = vcl_session_get (wrk, sid);
2190 if (!s || !vcl_session_is_open (s))
2192 if (sid < n_bits && write_map)
2194 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2198 case SESSION_CTRL_EVT_ACCEPTED:
2200 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2202 s = vcl_session_get (wrk, e->session_index);
2205 sid = s->session_index;
2206 if (sid < n_bits && read_map)
2208 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2212 case SESSION_CTRL_EVT_CONNECTED:
2215 connected_msg = (session_connected_msg_t *) e->data;
2216 sid = vcl_session_connected_handler (wrk, connected_msg);
2219 sid = e->session_index;
2220 if (sid == VCL_INVALID_SESSION_INDEX)
2222 if (sid < n_bits && write_map)
2224 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2228 case SESSION_CTRL_EVT_DISCONNECTED:
2229 disconnected_msg = (session_disconnected_msg_t *) e->data;
2230 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2233 sid = s->session_index;
2234 if (sid < n_bits && except_map)
2236 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2240 case SESSION_CTRL_EVT_RESET:
2241 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2242 if (sid < n_bits && except_map)
2244 clib_bitmap_set_no_check ((uword *) except_map, sid, 1);
2248 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2249 vcl_session_unlisten_reply_handler (wrk, e->data);
2251 case SESSION_CTRL_EVT_MIGRATED:
2252 vcl_session_migrated_handler (wrk, e->data);
2254 case SESSION_CTRL_EVT_CLEANUP:
2255 vcl_session_cleanup_handler (wrk, e->data);
2257 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2258 vcl_session_worker_update_reply_handler (wrk, e->data);
2260 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2261 vcl_session_req_worker_update_handler (wrk, e->data);
2263 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2264 vcl_session_app_add_segment_handler (wrk, e->data);
2266 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2267 vcl_session_app_del_segment_handler (wrk, e->data);
2269 case SESSION_CTRL_EVT_APP_WRK_RPC:
2270 vcl_worker_rpc_handler (wrk, e->data);
2273 clib_warning ("unhandled: %u", e->event_type);
2279 vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2280 unsigned long n_bits, unsigned long *read_map,
2281 unsigned long *write_map, unsigned long *except_map,
2282 double time_to_wait, u32 * bits_set)
2284 svm_msg_q_msg_t *msg;
2288 svm_msg_q_lock (mq);
2289 if (svm_msg_q_is_empty (mq))
2293 svm_msg_q_unlock (mq);
2299 svm_msg_q_unlock (mq);
2302 else if (time_to_wait < 0)
2304 svm_msg_q_wait (mq);
2308 if (svm_msg_q_timedwait (mq, time_to_wait))
2310 svm_msg_q_unlock (mq);
2315 vcl_mq_dequeue_batch (wrk, mq, ~0);
2316 svm_msg_q_unlock (mq);
2318 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2320 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2321 e = svm_msg_q_msg_data (mq, msg);
2322 vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map,
2323 except_map, bits_set);
2324 svm_msg_q_free_msg (mq, msg);
2326 vec_reset_length (wrk->mq_msg_vector);
2327 vcl_handle_pending_wrk_updates (wrk);
2332 vppcom_select_condvar (vcl_worker_t * wrk, int n_bits,
2333 vcl_si_set * read_map, vcl_si_set * write_map,
2334 vcl_si_set * except_map, double time_to_wait,
2337 double wait = 0, start = 0;
2341 wait = time_to_wait;
2342 start = clib_time_now (&wrk->clib_time);
2347 vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map,
2348 write_map, except_map, wait, bits_set);
2354 wait = wait - (clib_time_now (&wrk->clib_time) - start);
2362 vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits,
2363 vcl_si_set * read_map, vcl_si_set * write_map,
2364 vcl_si_set * except_map, double time_to_wait,
2367 vcl_mq_evt_conn_t *mqc;
2368 int __clib_unused n_read;
2372 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
2373 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
2374 vec_len (wrk->mq_events), time_to_wait);
2375 for (i = 0; i < n_mq_evts; i++)
2377 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
2378 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
2379 vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map,
2380 except_map, 0, bits_set);
2383 return (n_mq_evts > 0 ? (int) *bits_set : 0);
2387 vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map,
2388 vcl_si_set * except_map, double time_to_wait)
2390 u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0;
2391 vcl_worker_t *wrk = vcl_worker_get_current ();
2392 vcl_session_t *session = 0;
2395 if (n_bits && read_map)
2397 clib_bitmap_validate (wrk->rd_bitmap, minbits);
2398 clib_memcpy_fast (wrk->rd_bitmap, read_map,
2399 vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2400 memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set));
2402 if (n_bits && write_map)
2404 clib_bitmap_validate (wrk->wr_bitmap, minbits);
2405 clib_memcpy_fast (wrk->wr_bitmap, write_map,
2406 vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2407 memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set));
2409 if (n_bits && except_map)
2411 clib_bitmap_validate (wrk->ex_bitmap, minbits);
2412 clib_memcpy_fast (wrk->ex_bitmap, except_map,
2413 vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2414 memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set));
2424 clib_bitmap_foreach (sid, wrk->wr_bitmap) {
2425 if (!(session = vcl_session_get (wrk, sid)))
2427 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2432 if (vcl_session_write_ready (session))
2434 clib_bitmap_set_no_check ((uword*)write_map, sid, 1);
2438 svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2445 clib_bitmap_foreach (sid, wrk->rd_bitmap) {
2446 if (!(session = vcl_session_get (wrk, sid)))
2448 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2453 if (vcl_session_read_ready (session))
2455 clib_bitmap_set_no_check ((uword*)read_map, sid, 1);
2463 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
2465 vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits,
2466 read_map, write_map, except_map, &bits_set);
2468 vec_reset_length (wrk->unhandled_evts_vector);
2470 if (vcm->cfg.use_mq_eventfd)
2471 vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map,
2472 time_to_wait, &bits_set);
2474 vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map,
2475 time_to_wait, &bits_set);
2481 vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle)
2483 vppcom_epoll_t *vep;
2484 u32 sh = vep_handle;
2487 if (VPPCOM_DEBUG <= 2)
2490 s = vcl_session_get_w_handle (wrk, vep_handle);
2491 if (PREDICT_FALSE (!s))
2493 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2496 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP)))
2498 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2502 VDBG (0, "vep_sh (%u): Dumping epoll chain\n"
2505 " is_vep_session = %u\n"
2506 " next_sh = 0x%x (%u)\n"
2507 "}\n", vep_handle, s->flags & VCL_SESSION_F_IS_VEP,
2508 s->flags & VCL_SESSION_F_IS_VEP_SESSION, vep->next_sh, vep->next_sh);
2510 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2512 s = vcl_session_get_w_handle (wrk, sh);
2513 if (PREDICT_FALSE (!s))
2515 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2518 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2520 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2522 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2524 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2528 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2529 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2530 sh, s->vep.vep_sh, vep_handle);
2531 if (s->flags & VCL_SESSION_F_IS_VEP_SESSION)
2533 VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n"
2535 " next_sh = 0x%x (%u)\n"
2536 " prev_sh = 0x%x (%u)\n"
2537 " vep_sh = 0x%x (%u)\n"
2538 " ev.events = 0x%x\n"
2539 " ev.data.u64 = 0x%llx\n"
2542 vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh,
2543 vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events,
2544 vep->ev.data.u64, vep->et_mask);
2549 VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle);
2553 vppcom_epoll_create (void)
2555 vcl_worker_t *wrk = vcl_worker_get_current ();
2556 vcl_session_t *vep_session;
2558 vep_session = vcl_session_alloc (wrk);
2560 vep_session->flags |= VCL_SESSION_F_IS_VEP;
2561 vep_session->vep.vep_sh = ~0;
2562 vep_session->vep.next_sh = ~0;
2563 vep_session->vep.prev_sh = ~0;
2564 vep_session->vpp_handle = ~0;
2566 vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index);
2567 VDBG (0, "Created vep_idx %u", vep_session->session_index);
2569 return vcl_session_handle (vep_session);
2573 vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle,
2574 struct epoll_event *event)
2576 vcl_worker_t *wrk = vcl_worker_get_current ();
2577 vcl_session_t *vep_session;
2582 if (vep_handle == session_handle)
2584 VDBG (0, "vep_sh == session handle (%u)!", vep_handle);
2585 return VPPCOM_EINVAL;
2588 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
2589 if (PREDICT_FALSE (!vep_session))
2591 VDBG (0, "Invalid vep_sh (%u)!", vep_handle);
2592 return VPPCOM_EBADFD;
2594 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
2596 VDBG (0, "vep_sh (%u) is not a vep!", vep_handle);
2597 return VPPCOM_EINVAL;
2600 ASSERT (vep_session->vep.vep_sh == ~0);
2601 ASSERT (vep_session->vep.prev_sh == ~0);
2603 s = vcl_session_get_w_handle (wrk, session_handle);
2604 if (PREDICT_FALSE (!s))
2606 VDBG (0, "Invalid session_handle (%u)!", session_handle);
2607 return VPPCOM_EBADFD;
2609 if (PREDICT_FALSE (s->flags & VCL_SESSION_F_IS_VEP))
2611 VDBG (0, "session_handle (%u) is a vep!", vep_handle);
2612 return VPPCOM_EINVAL;
2618 if (PREDICT_FALSE (!event))
2620 VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!");
2621 return VPPCOM_EINVAL;
2623 if (vep_session->vep.next_sh != ~0)
2625 vcl_session_t *next_session;
2626 next_session = vcl_session_get_w_handle (wrk,
2627 vep_session->vep.next_sh);
2628 if (PREDICT_FALSE (!next_session))
2630 VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on "
2631 "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle);
2632 return VPPCOM_EBADFD;
2634 ASSERT (next_session->vep.prev_sh == vep_handle);
2635 next_session->vep.prev_sh = session_handle;
2637 s->vep.next_sh = vep_session->vep.next_sh;
2638 s->vep.prev_sh = vep_handle;
2639 s->vep.vep_sh = vep_handle;
2640 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2642 s->flags &= ~VCL_SESSION_F_IS_VEP;
2643 s->flags |= VCL_SESSION_F_IS_VEP_SESSION;
2644 vep_session->vep.next_sh = session_handle;
2646 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2647 if (txf && (event->events & EPOLLOUT))
2648 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2650 /* Generate EPOLLOUT if tx fifo not full */
2651 if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2653 session_event_t e = { 0 };
2654 e.event_type = SESSION_IO_EVT_TX;
2655 e.session_index = s->session_index;
2656 vec_add1 (wrk->unhandled_evts_vector, e);
2658 /* Generate EPOLLIN if rx fifo has data */
2659 if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0))
2661 session_event_t e = { 0 };
2662 e.event_type = SESSION_IO_EVT_RX;
2663 e.session_index = s->session_index;
2664 vec_add1 (wrk->unhandled_evts_vector, e);
2666 VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2667 vep_handle, session_handle, event->events, event->data.u64);
2668 vcl_evt (VCL_EVT_EPOLL_CTLADD, s, event->events, event->data.u64);
2672 if (PREDICT_FALSE (!event))
2674 VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!");
2678 else if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2680 VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle);
2684 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2686 VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!",
2687 session_handle, s->vep.vep_sh, vep_handle);
2692 /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */
2693 if ((event->events & EPOLLOUT) &&
2694 !(s->vep.ev.events & EPOLLOUT) && (vcl_session_write_ready (s) > 0))
2696 session_event_t e = { 0 };
2697 e.event_type = SESSION_IO_EVT_TX;
2698 e.session_index = s->session_index;
2699 vec_add1 (wrk->unhandled_evts_vector, e);
2701 s->vep.et_mask = VEP_DEFAULT_ET_MASK;
2703 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2704 if (event->events & EPOLLOUT)
2705 svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2707 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2708 VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!",
2709 vep_handle, session_handle, event->events, event->data.u64);
2713 if (PREDICT_FALSE (!(s->flags & VCL_SESSION_F_IS_VEP_SESSION)))
2715 VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle);
2719 else if (PREDICT_FALSE (s->vep.vep_sh != vep_handle))
2721 VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!",
2722 session_handle, s->vep.vep_sh, vep_handle);
2727 if (s->vep.prev_sh == vep_handle)
2728 vep_session->vep.next_sh = s->vep.next_sh;
2731 vcl_session_t *prev_session;
2732 prev_session = vcl_session_get_w_handle (wrk, s->vep.prev_sh);
2733 if (PREDICT_FALSE (!prev_session))
2735 VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!",
2736 s->vep.prev_sh, session_handle);
2737 return VPPCOM_EBADFD;
2739 ASSERT (prev_session->vep.next_sh == session_handle);
2740 prev_session->vep.next_sh = s->vep.next_sh;
2742 if (s->vep.next_sh != ~0)
2744 vcl_session_t *next_session;
2745 next_session = vcl_session_get_w_handle (wrk, s->vep.next_sh);
2746 if (PREDICT_FALSE (!next_session))
2748 VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!",
2749 s->vep.next_sh, session_handle);
2750 return VPPCOM_EBADFD;
2752 ASSERT (next_session->vep.prev_sh == session_handle);
2753 next_session->vep.prev_sh = s->vep.prev_sh;
2756 memset (&s->vep, 0, sizeof (s->vep));
2757 s->vep.next_sh = ~0;
2758 s->vep.prev_sh = ~0;
2760 s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION;
2762 txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo;
2764 svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL);
2766 VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle,
2768 vcl_evt (VCL_EVT_EPOLL_CTLDEL, s, vep_sh);
2772 VDBG (0, "Invalid operation (%d)!", op);
2776 vep_verify_epoll_chain (wrk, vep_handle);
2783 vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2784 struct epoll_event *events, u32 * num_ev)
2786 session_disconnected_msg_t *disconnected_msg;
2787 session_connected_msg_t *connected_msg;
2788 u32 sid = ~0, session_events;
2789 u64 session_evt_data = ~0;
2793 switch (e->event_type)
2795 case SESSION_IO_EVT_RX:
2796 sid = e->session_index;
2797 s = vcl_session_get (wrk, sid);
2798 if (vcl_session_is_closed (s))
2800 vcl_fifo_rx_evt_valid_or_break (s);
2801 session_events = s->vep.ev.events;
2802 if (!(EPOLLIN & s->vep.ev.events)
2803 || (s->flags & VCL_SESSION_F_HAS_RX_EVT))
2806 events[*num_ev].events |= EPOLLIN;
2807 session_evt_data = s->vep.ev.data.u64;
2808 s->flags |= VCL_SESSION_F_HAS_RX_EVT;
2810 case SESSION_IO_EVT_TX:
2811 sid = e->session_index;
2812 s = vcl_session_get (wrk, sid);
2813 if (vcl_session_is_closed (s))
2815 session_events = s->vep.ev.events;
2816 if (!(EPOLLOUT & session_events))
2819 events[*num_ev].events |= EPOLLOUT;
2820 session_evt_data = s->vep.ev.data.u64;
2821 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ?
2822 s->ct_tx_fifo : s->tx_fifo);
2824 case SESSION_CTRL_EVT_ACCEPTED:
2826 s = vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
2828 s = vcl_session_get (wrk, e->session_index);
2831 session_events = s->vep.ev.events;
2832 sid = s->session_index;
2833 if (!(EPOLLIN & session_events))
2836 events[*num_ev].events |= EPOLLIN;
2837 session_evt_data = s->vep.ev.data.u64;
2839 case SESSION_CTRL_EVT_CONNECTED:
2842 connected_msg = (session_connected_msg_t *) e->data;
2843 sid = vcl_session_connected_handler (wrk, connected_msg);
2846 sid = e->session_index;
2847 s = vcl_session_get (wrk, sid);
2848 if (vcl_session_is_closed (s))
2850 session_events = s->vep.ev.events;
2851 /* Generate EPOLLOUT because there's no connected event */
2852 if (!(EPOLLOUT & session_events))
2855 events[*num_ev].events |= EPOLLOUT;
2856 session_evt_data = s->vep.ev.data.u64;
2857 if (s->session_state == VCL_STATE_DETACHED)
2858 events[*num_ev].events |= EPOLLHUP;
2860 case SESSION_CTRL_EVT_DISCONNECTED:
2861 disconnected_msg = (session_disconnected_msg_t *) e->data;
2862 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
2863 if (vcl_session_is_closed (s))
2865 sid = s->session_index;
2866 session_events = s->vep.ev.events;
2868 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2869 session_evt_data = s->vep.ev.data.u64;
2871 case SESSION_CTRL_EVT_RESET:
2872 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2873 s = vcl_session_get (wrk, sid);
2874 if (vcl_session_is_closed (s))
2876 session_events = s->vep.ev.events;
2878 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2879 session_evt_data = s->vep.ev.data.u64;
2881 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2882 vcl_session_unlisten_reply_handler (wrk, e->data);
2884 case SESSION_CTRL_EVT_MIGRATED:
2885 vcl_session_migrated_handler (wrk, e->data);
2887 case SESSION_CTRL_EVT_CLEANUP:
2888 vcl_session_cleanup_handler (wrk, e->data);
2890 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2891 vcl_session_req_worker_update_handler (wrk, e->data);
2893 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2894 vcl_session_worker_update_reply_handler (wrk, e->data);
2896 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2897 vcl_session_app_add_segment_handler (wrk, e->data);
2899 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2900 vcl_session_app_del_segment_handler (wrk, e->data);
2902 case SESSION_CTRL_EVT_APP_WRK_RPC:
2903 vcl_worker_rpc_handler (wrk, e->data);
2906 VDBG (0, "unhandled: %u", e->event_type);
2912 events[*num_ev].data.u64 = session_evt_data;
2913 if (EPOLLONESHOT & session_events)
2915 s = vcl_session_get (wrk, sid);
2916 s->vep.ev.events = 0;
2923 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2924 struct epoll_event *events, u32 maxevents,
2925 double wait_for_time, u32 * num_ev)
2927 svm_msg_q_msg_t *msg;
2931 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2932 goto handle_dequeued;
2934 svm_msg_q_lock (mq);
2935 if (svm_msg_q_is_empty (mq))
2939 svm_msg_q_unlock (mq);
2942 else if (wait_for_time < 0)
2944 svm_msg_q_wait (mq);
2948 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2950 svm_msg_q_unlock (mq);
2955 ASSERT (maxevents > *num_ev);
2956 vcl_mq_dequeue_batch (wrk, mq, ~0);
2957 svm_msg_q_unlock (mq);
2960 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2962 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2963 e = svm_msg_q_msg_data (mq, msg);
2964 if (*num_ev < maxevents)
2965 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2967 vcl_handle_mq_event (wrk, e);
2968 svm_msg_q_free_msg (mq, msg);
2970 vec_reset_length (wrk->mq_msg_vector);
2971 vcl_handle_pending_wrk_updates (wrk);
2976 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2977 int maxevents, u32 n_evts, double wait_for_time)
2979 double wait = 0, start = 0, now;
2983 wait = wait_for_time;
2984 start = clib_time_now (&wrk->clib_time);
2989 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2996 now = clib_time_now (&wrk->clib_time);
2997 wait -= (now - start) * 1e3;
3006 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
3007 int maxevents, u32 n_evts, double wait_for_time)
3009 vcl_mq_evt_conn_t *mqc;
3010 int __clib_unused n_read;
3014 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3016 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3017 vec_len (wrk->mq_events), wait_for_time);
3018 for (i = 0; i < n_mq_evts; i++)
3020 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3021 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3022 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3024 if (!n_evts && n_mq_evts > 0)
3027 return (int) n_evts;
3031 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3032 int maxevents, double wait_for_time)
3034 vcl_worker_t *wrk = vcl_worker_get_current ();
3035 vcl_session_t *vep_session;
3039 if (PREDICT_FALSE (maxevents <= 0))
3041 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3042 return VPPCOM_EINVAL;
3045 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3047 return VPPCOM_EBADFD;
3049 if (PREDICT_FALSE (!(vep_session->flags & VCL_SESSION_F_IS_VEP)))
3051 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3052 return VPPCOM_EINVAL;
3055 memset (events, 0, sizeof (*events) * maxevents);
3057 if (vec_len (wrk->unhandled_evts_vector))
3059 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3061 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3063 if (n_evts == maxevents)
3065 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3069 vec_reset_length (wrk->unhandled_evts_vector);
3072 if (vcm->cfg.use_mq_eventfd)
3073 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3076 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3081 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3082 void *buffer, uint32_t * buflen)
3084 vcl_worker_t *wrk = vcl_worker_get_current ();
3085 vcl_session_t *session;
3087 u32 *flags = buffer, tmp_flags = 0;
3088 vppcom_endpt_t *ep = buffer;
3090 session = vcl_session_get_w_handle (wrk, session_handle);
3092 return VPPCOM_EBADFD;
3096 case VPPCOM_ATTR_GET_NREAD:
3097 rv = vcl_session_read_ready (session);
3098 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3102 case VPPCOM_ATTR_GET_NWRITE:
3103 rv = vcl_session_write_ready (session);
3104 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3108 case VPPCOM_ATTR_GET_FLAGS:
3109 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3113 (vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK) ?
3115 *buflen = sizeof (*flags);
3116 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3117 "is_nonblocking = %u", session_handle, *flags,
3118 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3124 case VPPCOM_ATTR_SET_FLAGS:
3125 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3127 if (*flags & O_NONBLOCK)
3128 vcl_session_set_attr (session, VCL_SESS_ATTR_NONBLOCK);
3130 vcl_session_clear_attr (session, VCL_SESS_ATTR_NONBLOCK);
3132 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3133 " is_nonblocking = %u", session_handle, *flags,
3134 vcl_session_has_attr (session, VCL_SESS_ATTR_NONBLOCK));
3140 case VPPCOM_ATTR_GET_PEER_ADDR:
3141 if (PREDICT_TRUE (buffer && buflen &&
3142 (*buflen >= sizeof (*ep)) && ep->ip))
3144 ep->is_ip4 = session->transport.is_ip4;
3145 ep->port = session->transport.rmt_port;
3146 if (session->transport.is_ip4)
3147 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3148 sizeof (ip4_address_t));
3150 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3151 sizeof (ip6_address_t));
3152 *buflen = sizeof (*ep);
3153 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3154 "addr = %U, port %u", session_handle, ep->is_ip4,
3155 format_ip46_address, &session->transport.rmt_ip,
3156 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3157 clib_net_to_host_u16 (ep->port));
3163 case VPPCOM_ATTR_GET_LCL_ADDR:
3164 if (PREDICT_TRUE (buffer && buflen &&
3165 (*buflen >= sizeof (*ep)) && ep->ip))
3167 ep->is_ip4 = session->transport.is_ip4;
3168 ep->port = session->transport.lcl_port;
3169 if (session->transport.is_ip4)
3170 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3171 sizeof (ip4_address_t));
3173 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3174 sizeof (ip6_address_t));
3175 *buflen = sizeof (*ep);
3176 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3177 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3178 &session->transport.lcl_ip,
3179 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3180 clib_net_to_host_u16 (ep->port));
3186 case VPPCOM_ATTR_SET_LCL_ADDR:
3187 if (PREDICT_TRUE (buffer && buflen &&
3188 (*buflen >= sizeof (*ep)) && ep->ip))
3190 session->transport.is_ip4 = ep->is_ip4;
3191 session->transport.lcl_port = ep->port;
3192 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3193 *buflen = sizeof (*ep);
3194 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3195 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3196 &session->transport.lcl_ip,
3197 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3198 clib_net_to_host_u16 (ep->port));
3204 case VPPCOM_ATTR_GET_LIBC_EPFD:
3205 rv = session->libc_epfd;
3206 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3209 case VPPCOM_ATTR_SET_LIBC_EPFD:
3210 if (PREDICT_TRUE (buffer && buflen &&
3211 (*buflen == sizeof (session->libc_epfd))))
3213 session->libc_epfd = *(int *) buffer;
3214 *buflen = sizeof (session->libc_epfd);
3216 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3217 session->libc_epfd, *buflen);
3223 case VPPCOM_ATTR_GET_PROTOCOL:
3224 if (buffer && buflen && (*buflen >= sizeof (int)))
3226 *(int *) buffer = session->session_type;
3227 *buflen = sizeof (int);
3229 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3230 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3236 case VPPCOM_ATTR_GET_LISTEN:
3237 if (buffer && buflen && (*buflen >= sizeof (int)))
3239 *(int *) buffer = vcl_session_has_attr (session,
3240 VCL_SESS_ATTR_LISTEN);
3241 *buflen = sizeof (int);
3243 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3250 case VPPCOM_ATTR_GET_ERROR:
3251 if (buffer && buflen && (*buflen >= sizeof (int)))
3253 *(int *) buffer = 0;
3254 *buflen = sizeof (int);
3256 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3257 *(int *) buffer, *buflen);
3263 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3264 if (buffer && buflen && (*buflen >= sizeof (u32)))
3268 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3270 svm_fifo_size (session->tx_fifo) :
3271 vcm->cfg.tx_fifo_size);
3272 *buflen = sizeof (u32);
3274 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3275 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3282 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3283 if (buffer && buflen && (*buflen == sizeof (u32)))
3286 session->sndbuf_size = *(u32 *) buffer;
3287 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3288 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3295 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3296 if (buffer && buflen && (*buflen >= sizeof (u32)))
3300 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3302 svm_fifo_size (session->rx_fifo) :
3303 vcm->cfg.rx_fifo_size);
3304 *buflen = sizeof (u32);
3306 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3307 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3313 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3314 if (buffer && buflen && (*buflen == sizeof (u32)))
3317 session->rcvbuf_size = *(u32 *) buffer;
3318 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3319 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3326 case VPPCOM_ATTR_GET_REUSEADDR:
3327 if (buffer && buflen && (*buflen >= sizeof (int)))
3330 *(int *) buffer = vcl_session_has_attr (session,
3331 VCL_SESS_ATTR_REUSEADDR);
3332 *buflen = sizeof (int);
3334 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3335 *(int *) buffer, *buflen);
3341 case VPPCOM_ATTR_SET_REUSEADDR:
3342 if (buffer && buflen && (*buflen == sizeof (int)) &&
3343 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3346 if (*(int *) buffer)
3347 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEADDR);
3349 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEADDR);
3351 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3352 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEADDR),
3359 case VPPCOM_ATTR_GET_REUSEPORT:
3360 if (buffer && buflen && (*buflen >= sizeof (int)))
3363 *(int *) buffer = vcl_session_has_attr (session,
3364 VCL_SESS_ATTR_REUSEPORT);
3365 *buflen = sizeof (int);
3367 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3368 *(int *) buffer, *buflen);
3374 case VPPCOM_ATTR_SET_REUSEPORT:
3375 if (buffer && buflen && (*buflen == sizeof (int)) &&
3376 !vcl_session_has_attr (session, VCL_SESS_ATTR_LISTEN))
3379 if (*(int *) buffer)
3380 vcl_session_set_attr (session, VCL_SESS_ATTR_REUSEPORT);
3382 vcl_session_clear_attr (session, VCL_SESS_ATTR_REUSEPORT);
3384 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3385 vcl_session_has_attr (session, VCL_SESS_ATTR_REUSEPORT),
3392 case VPPCOM_ATTR_GET_BROADCAST:
3393 if (buffer && buflen && (*buflen >= sizeof (int)))
3396 *(int *) buffer = vcl_session_has_attr (session,
3397 VCL_SESS_ATTR_BROADCAST);
3398 *buflen = sizeof (int);
3400 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3401 *(int *) buffer, *buflen);
3407 case VPPCOM_ATTR_SET_BROADCAST:
3408 if (buffer && buflen && (*buflen == sizeof (int)))
3411 if (*(int *) buffer)
3412 vcl_session_set_attr (session, VCL_SESS_ATTR_BROADCAST);
3414 vcl_session_clear_attr (session, VCL_SESS_ATTR_BROADCAST);
3416 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3417 vcl_session_has_attr (session, VCL_SESS_ATTR_BROADCAST),
3424 case VPPCOM_ATTR_GET_V6ONLY:
3425 if (buffer && buflen && (*buflen >= sizeof (int)))
3428 *(int *) buffer = vcl_session_has_attr (session,
3429 VCL_SESS_ATTR_V6ONLY);
3430 *buflen = sizeof (int);
3432 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3433 *(int *) buffer, *buflen);
3439 case VPPCOM_ATTR_SET_V6ONLY:
3440 if (buffer && buflen && (*buflen == sizeof (int)))
3443 if (*(int *) buffer)
3444 vcl_session_set_attr (session, VCL_SESS_ATTR_V6ONLY);
3446 vcl_session_clear_attr (session, VCL_SESS_ATTR_V6ONLY);
3448 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3449 vcl_session_has_attr (session, VCL_SESS_ATTR_V6ONLY),
3456 case VPPCOM_ATTR_GET_KEEPALIVE:
3457 if (buffer && buflen && (*buflen >= sizeof (int)))
3460 *(int *) buffer = vcl_session_has_attr (session,
3461 VCL_SESS_ATTR_KEEPALIVE);
3462 *buflen = sizeof (int);
3464 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3465 *(int *) buffer, *buflen);
3471 case VPPCOM_ATTR_SET_KEEPALIVE:
3472 if (buffer && buflen && (*buflen == sizeof (int)))
3475 if (*(int *) buffer)
3476 vcl_session_set_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3478 vcl_session_clear_attr (session, VCL_SESS_ATTR_KEEPALIVE);
3480 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3481 vcl_session_has_attr (session, VCL_SESS_ATTR_KEEPALIVE),
3488 case VPPCOM_ATTR_GET_TCP_NODELAY:
3489 if (buffer && buflen && (*buflen >= sizeof (int)))
3492 *(int *) buffer = vcl_session_has_attr (session,
3493 VCL_SESS_ATTR_TCP_NODELAY);
3494 *buflen = sizeof (int);
3496 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3497 *(int *) buffer, *buflen);
3503 case VPPCOM_ATTR_SET_TCP_NODELAY:
3504 if (buffer && buflen && (*buflen == sizeof (int)))
3507 if (*(int *) buffer)
3508 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3510 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_NODELAY);
3512 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3513 vcl_session_has_attr (session, VCL_SESS_ATTR_TCP_NODELAY),
3520 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3521 if (buffer && buflen && (*buflen >= sizeof (int)))
3524 *(int *) buffer = vcl_session_has_attr (session,
3525 VCL_SESS_ATTR_TCP_KEEPIDLE);
3526 *buflen = sizeof (int);
3528 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3529 *(int *) buffer, *buflen);
3535 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3536 if (buffer && buflen && (*buflen == sizeof (int)))
3539 if (*(int *) buffer)
3540 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3542 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPIDLE);
3544 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3545 vcl_session_has_attr (session,
3546 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3552 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3553 if (buffer && buflen && (*buflen >= sizeof (int)))
3556 *(int *) buffer = vcl_session_has_attr (session,
3557 VCL_SESS_ATTR_TCP_KEEPINTVL);
3558 *buflen = sizeof (int);
3560 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3561 *(int *) buffer, *buflen);
3567 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3568 if (buffer && buflen && (*buflen == sizeof (int)))
3571 if (*(int *) buffer)
3572 vcl_session_set_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3574 vcl_session_clear_attr (session, VCL_SESS_ATTR_TCP_KEEPINTVL);
3576 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3577 vcl_session_has_attr (session,
3578 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3584 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3585 if (buffer && buflen && (*buflen >= sizeof (u32)))
3588 *(u32 *) buffer = session->user_mss;
3589 *buflen = sizeof (int);
3591 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3592 *(int *) buffer, *buflen);
3598 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3599 if (buffer && buflen && (*buflen == sizeof (u32)))
3602 session->user_mss = *(u32 *) buffer;
3604 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3605 session->user_mss, *buflen);
3611 case VPPCOM_ATTR_SET_SHUT:
3612 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3613 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_RD);
3614 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3615 vcl_session_set_attr (session, VCL_SESS_ATTR_SHUT_WR);
3618 case VPPCOM_ATTR_GET_SHUT:
3619 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_RD))
3621 if (vcl_session_has_attr (session, VCL_SESS_ATTR_SHUT_WR))
3624 *(int *) buffer = SHUT_RD;
3625 else if (tmp_flags == 2)
3626 *(int *) buffer = SHUT_WR;
3627 else if (tmp_flags == 3)
3628 *(int *) buffer = SHUT_RDWR;
3629 *buflen = sizeof (int);
3632 case VPPCOM_ATTR_SET_CONNECTED:
3633 session->flags |= VCL_SESSION_F_CONNECTED;
3645 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3646 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3648 vcl_worker_t *wrk = vcl_worker_get_current ();
3649 vcl_session_t *session;
3653 rv = vppcom_session_read (session_handle, buffer, buflen);
3654 else if (flags & MSG_PEEK)
3655 rv = vppcom_session_peek (session_handle, buffer, buflen);
3658 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3659 return VPPCOM_EAFNOSUPPORT;
3664 session = vcl_session_get_w_handle (wrk, session_handle);
3665 if (session->transport.is_ip4)
3666 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3667 sizeof (ip4_address_t));
3669 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3670 sizeof (ip6_address_t));
3671 ep->is_ip4 = session->transport.is_ip4;
3672 ep->port = session->transport.rmt_port;
3679 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3680 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3682 vcl_worker_t *wrk = vcl_worker_get_current ();
3685 s = vcl_session_get_w_handle (wrk, session_handle);
3687 return VPPCOM_EBADFD;
3690 return VPPCOM_EINVAL;
3694 if (!vcl_session_is_cl (s))
3695 return VPPCOM_EINVAL;
3697 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3698 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3700 u32 session_index = s->session_index;
3701 f64 timeout = vcm->cfg.session_timeout;
3704 vcl_send_session_connect (wrk, s);
3705 rv = vppcom_wait_for_session_state_change (session_index,
3710 s = vcl_session_get (wrk, session_index);
3713 s->transport.is_ip4 = ep->is_ip4;
3714 s->transport.rmt_port = ep->port;
3715 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3720 // TBD check the flags and do the right thing
3721 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3724 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3725 s->is_dgram ? 1 : 0));
3729 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3731 vcl_worker_t *wrk = vcl_worker_get_current ();
3732 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3733 u32 i, keep_trying = 1;
3734 svm_msg_q_msg_t msg;
3738 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3741 return VPPCOM_EFAULT;
3745 vcl_session_t *session;
3747 /* Dequeue all events and drop all unhandled io events */
3748 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3750 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3751 vcl_handle_mq_event (wrk, e);
3752 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3754 vec_reset_length (wrk->unhandled_evts_vector);
3756 for (i = 0; i < n_sids; i++)
3758 session = vcl_session_get (wrk, vp[i].sh);
3761 vp[i].revents = POLLHUP;
3768 if (POLLIN & vp[i].events)
3770 rv = vcl_session_read_ready (session);
3773 vp[i].revents |= POLLIN;
3780 case VPPCOM_ECONNRESET:
3781 vp[i].revents = POLLHUP;
3785 vp[i].revents = POLLERR;
3792 if (POLLOUT & vp[i].events)
3794 rv = vcl_session_write_ready (session);
3797 vp[i].revents |= POLLOUT;
3804 case VPPCOM_ECONNRESET:
3805 vp[i].revents = POLLHUP;
3809 vp[i].revents = POLLERR;
3816 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3818 vp[i].revents = POLLNVAL;
3822 if (wait_for_time != -1)
3823 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3825 while ((num_ev == 0) && keep_trying);
3831 vppcom_mq_epoll_fd (void)
3833 vcl_worker_t *wrk = vcl_worker_get_current ();
3834 return wrk->mqs_epfd;
3838 vppcom_session_index (vcl_session_handle_t session_handle)
3840 return session_handle & 0xFFFFFF;
3844 vppcom_session_worker (vcl_session_handle_t session_handle)
3846 return session_handle >> 24;
3850 vppcom_worker_register (void)
3852 if (!vcl_worker_alloc_and_init ())
3853 return VPPCOM_EEXIST;
3855 if (vcl_worker_register_with_vpp ())
3856 return VPPCOM_EEXIST;
3862 vppcom_worker_unregister (void)
3864 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3865 vcl_set_worker_index (~0);
3869 vppcom_worker_index_set (int index)
3871 vcl_set_worker_index (index);
3875 vppcom_worker_index (void)
3877 return vcl_get_worker_index ();
3881 vppcom_worker_mqs_epfd (void)
3883 vcl_worker_t *wrk = vcl_worker_get_current ();
3884 if (!vcm->cfg.use_mq_eventfd)
3886 return wrk->mqs_epfd;
3890 vppcom_session_is_connectable_listener (uint32_t session_handle)
3892 vcl_session_t *session;
3893 vcl_worker_t *wrk = vcl_worker_get_current ();
3894 session = vcl_session_get_w_handle (wrk, session_handle);
3896 return VPPCOM_EBADFD;
3897 return vcl_session_is_connectable_listener (wrk, session);
3901 vppcom_session_listener (uint32_t session_handle)
3903 vcl_worker_t *wrk = vcl_worker_get_current ();
3904 vcl_session_t *listen_session, *session;
3905 session = vcl_session_get_w_handle (wrk, session_handle);
3907 return VPPCOM_EBADFD;
3908 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3909 return VPPCOM_EBADFD;
3910 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3911 if (!listen_session)
3912 return VPPCOM_EBADFD;
3913 return vcl_session_handle (listen_session);
3917 vppcom_session_n_accepted (uint32_t session_handle)
3919 vcl_worker_t *wrk = vcl_worker_get_current ();
3920 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3922 return VPPCOM_EBADFD;
3923 return session->n_accepted_sessions;
3927 vppcom_proto_str (vppcom_proto_t proto)
3929 char const *proto_str;
3933 case VPPCOM_PROTO_TCP:
3936 case VPPCOM_PROTO_UDP:
3939 case VPPCOM_PROTO_TLS:
3942 case VPPCOM_PROTO_QUIC:
3946 proto_str = "UNKNOWN";
3953 vppcom_retval_str (int retval)
3964 st = "VPPCOM_EAGAIN";
3968 st = "VPPCOM_EFAULT";
3972 st = "VPPCOM_ENOMEM";
3976 st = "VPPCOM_EINVAL";
3980 st = "VPPCOM_EBADFD";
3983 case VPPCOM_EAFNOSUPPORT:
3984 st = "VPPCOM_EAFNOSUPPORT";
3987 case VPPCOM_ECONNABORTED:
3988 st = "VPPCOM_ECONNABORTED";
3991 case VPPCOM_ECONNRESET:
3992 st = "VPPCOM_ECONNRESET";
3995 case VPPCOM_ENOTCONN:
3996 st = "VPPCOM_ENOTCONN";
3999 case VPPCOM_ECONNREFUSED:
4000 st = "VPPCOM_ECONNREFUSED";
4003 case VPPCOM_ETIMEDOUT:
4004 st = "VPPCOM_ETIMEDOUT";
4008 st = "UNKNOWN_STATE";
4016 * fd.io coding-style-patch-verification: ON
4019 * eval: (c-set-style "gnu")