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_segment_is_not_mounted (vcl_worker_t * wrk, u64 segment_handle)
30 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
33 segment_index = vcl_segment_table_lookup (segment_handle);
34 if (segment_index != VCL_INVALID_SEGMENT_INDEX)
41 vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg)
47 n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg);
48 for (i = 0; i < n_msgs; i++)
50 vec_add2 (wrk->mq_msg_vector, msg, 1);
51 svm_msg_q_sub_w_lock (mq, msg);
57 vppcom_session_state_str (vcl_session_state_t state)
63 case VCL_STATE_CLOSED:
66 case VCL_STATE_CONNECT:
69 case VCL_STATE_LISTEN:
72 case VCL_STATE_ACCEPT:
75 case VCL_STATE_VPP_CLOSING:
76 st = "STATE_VPP_CLOSING";
78 case VCL_STATE_DISCONNECT:
79 st = "STATE_DISCONNECT";
81 case VCL_STATE_DETACHED:
82 st = "STATE_DETACHED";
84 case VCL_STATE_UPDATED:
87 case VCL_STATE_LISTEN_NO_MQ:
88 st = "STATE_LISTEN_NO_MQ";
99 format_ip4_address (u8 * s, va_list * args)
101 u8 *a = va_arg (*args, u8 *);
102 return format (s, "%d.%d.%d.%d", a[0], a[1], a[2], a[3]);
106 format_ip6_address (u8 * s, va_list * args)
108 ip6_address_t *a = va_arg (*args, ip6_address_t *);
109 u32 i, i_max_n_zero, max_n_zeros, i_first_zero, n_zeros, last_double_colon;
111 i_max_n_zero = ARRAY_LEN (a->as_u16);
113 i_first_zero = i_max_n_zero;
115 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
117 u32 is_zero = a->as_u16[i] == 0;
118 if (is_zero && i_first_zero >= ARRAY_LEN (a->as_u16))
124 if ((!is_zero && n_zeros > max_n_zeros)
125 || (i + 1 >= ARRAY_LEN (a->as_u16) && n_zeros > max_n_zeros))
127 i_max_n_zero = i_first_zero;
128 max_n_zeros = n_zeros;
129 i_first_zero = ARRAY_LEN (a->as_u16);
134 last_double_colon = 0;
135 for (i = 0; i < ARRAY_LEN (a->as_u16); i++)
137 if (i == i_max_n_zero && max_n_zeros > 1)
139 s = format (s, "::");
140 i += max_n_zeros - 1;
141 last_double_colon = 1;
145 s = format (s, "%s%x",
146 (last_double_colon || i == 0) ? "" : ":",
147 clib_net_to_host_u16 (a->as_u16[i]));
148 last_double_colon = 0;
155 /* Format an IP46 address. */
157 format_ip46_address (u8 * s, va_list * args)
159 ip46_address_t *ip46 = va_arg (*args, ip46_address_t *);
160 ip46_type_t type = va_arg (*args, ip46_type_t);
166 is_ip4 = ip46_address_is_ip4 (ip46);
177 format (s, "%U", format_ip4_address, &ip46->ip4) :
178 format (s, "%U", format_ip6_address, &ip46->ip6);
182 * VPPCOM Utility Functions
186 vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s)
188 app_session_evt_t _app_evt, *app_evt = &_app_evt;
189 session_listen_msg_t *mp;
192 mq = vcl_worker_ctrl_mq (wrk);
193 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN);
194 mp = (session_listen_msg_t *) app_evt->evt->data;
195 memset (mp, 0, sizeof (*mp));
196 mp->client_index = wrk->api_client_handle;
197 mp->context = s->session_index;
198 mp->wrk_index = wrk->vpp_wrk_index;
199 mp->is_ip4 = s->transport.is_ip4;
200 clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip));
201 mp->port = s->transport.lcl_port;
202 mp->proto = s->session_type;
203 if (s->flags & VCL_SESSION_F_CONNECTED)
204 mp->flags = TRANSPORT_CFG_F_CONNECTED;
205 app_send_ctrl_evt_to_vpp (mq, app_evt);
209 vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s)
211 app_session_evt_t _app_evt, *app_evt = &_app_evt;
212 session_connect_msg_t *mp;
215 mq = vcl_worker_ctrl_mq (wrk);
216 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT);
217 mp = (session_connect_msg_t *) app_evt->evt->data;
218 memset (mp, 0, sizeof (*mp));
219 mp->client_index = wrk->api_client_handle;
220 mp->context = s->session_index;
221 mp->wrk_index = wrk->vpp_wrk_index;
222 mp->is_ip4 = s->transport.is_ip4;
223 mp->parent_handle = s->parent_handle;
224 clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip));
225 clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip));
226 mp->port = s->transport.rmt_port;
227 mp->lcl_port = s->transport.lcl_port;
228 mp->proto = s->session_type;
229 if (s->flags & VCL_SESSION_F_CONNECTED)
230 mp->flags |= TRANSPORT_CFG_F_CONNECTED;
231 app_send_ctrl_evt_to_vpp (mq, app_evt);
235 vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s)
237 app_session_evt_t _app_evt, *app_evt = &_app_evt;
238 session_unlisten_msg_t *mp;
241 mq = vcl_worker_ctrl_mq (wrk);
242 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN);
243 mp = (session_unlisten_msg_t *) app_evt->evt->data;
244 memset (mp, 0, sizeof (*mp));
245 mp->client_index = wrk->api_client_handle;
246 mp->wrk_index = wrk->vpp_wrk_index;
247 mp->handle = s->vpp_handle;
248 mp->context = wrk->wrk_index;
249 app_send_ctrl_evt_to_vpp (mq, app_evt);
253 vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s)
255 app_session_evt_t _app_evt, *app_evt = &_app_evt;
256 session_disconnect_msg_t *mp;
259 /* Send to thread that owns the session */
261 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT);
262 mp = (session_disconnect_msg_t *) app_evt->evt->data;
263 memset (mp, 0, sizeof (*mp));
264 mp->client_index = wrk->api_client_handle;
265 mp->handle = s->vpp_handle;
266 app_send_ctrl_evt_to_vpp (mq, app_evt);
270 vcl_send_app_detach (vcl_worker_t * wrk)
272 app_session_evt_t _app_evt, *app_evt = &_app_evt;
273 session_app_detach_msg_t *mp;
276 mq = vcl_worker_ctrl_mq (wrk);
277 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH);
278 mp = (session_app_detach_msg_t *) app_evt->evt->data;
279 memset (mp, 0, sizeof (*mp));
280 mp->client_index = wrk->api_client_handle;
281 app_send_ctrl_evt_to_vpp (mq, app_evt);
285 vcl_send_session_accepted_reply (svm_msg_q_t * mq, u32 context,
286 session_handle_t handle, int retval)
288 app_session_evt_t _app_evt, *app_evt = &_app_evt;
289 session_accepted_reply_msg_t *rmp;
290 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_ACCEPTED_REPLY);
291 rmp = (session_accepted_reply_msg_t *) app_evt->evt->data;
292 rmp->handle = handle;
293 rmp->context = context;
294 rmp->retval = retval;
295 app_send_ctrl_evt_to_vpp (mq, app_evt);
299 vcl_send_session_disconnected_reply (svm_msg_q_t * mq, u32 context,
300 session_handle_t handle, int retval)
302 app_session_evt_t _app_evt, *app_evt = &_app_evt;
303 session_disconnected_reply_msg_t *rmp;
304 app_alloc_ctrl_evt_to_vpp (mq, app_evt,
305 SESSION_CTRL_EVT_DISCONNECTED_REPLY);
306 rmp = (session_disconnected_reply_msg_t *) app_evt->evt->data;
307 rmp->handle = handle;
308 rmp->context = context;
309 rmp->retval = retval;
310 app_send_ctrl_evt_to_vpp (mq, app_evt);
314 vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context,
315 session_handle_t handle, int retval)
317 app_session_evt_t _app_evt, *app_evt = &_app_evt;
318 session_reset_reply_msg_t *rmp;
319 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_RESET_REPLY);
320 rmp = (session_reset_reply_msg_t *) app_evt->evt->data;
321 rmp->handle = handle;
322 rmp->context = context;
323 rmp->retval = retval;
324 app_send_ctrl_evt_to_vpp (mq, app_evt);
328 vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s,
331 app_session_evt_t _app_evt, *app_evt = &_app_evt;
332 session_worker_update_msg_t *mp;
335 mq = vcl_session_vpp_evt_q (wrk, s);
336 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE);
337 mp = (session_worker_update_msg_t *) app_evt->evt->data;
338 mp->client_index = wrk->api_client_handle;
339 mp->handle = s->vpp_handle;
340 mp->req_wrk_index = wrk->vpp_wrk_index;
341 mp->wrk_index = wrk_index;
342 app_send_ctrl_evt_to_vpp (mq, app_evt);
346 vcl_send_worker_rpc (u32 dst_wrk_index, void *data, u32 data_len)
348 app_session_evt_t _app_evt, *app_evt = &_app_evt;
349 session_app_wrk_rpc_msg_t *mp;
350 vcl_worker_t *dst_wrk, *wrk;
354 if (data_len > sizeof (mp->data))
357 clib_spinlock_lock (&vcm->workers_lock);
359 dst_wrk = vcl_worker_get_if_valid (dst_wrk_index);
363 wrk = vcl_worker_get_current ();
364 mq = vcl_worker_ctrl_mq (wrk);
365 app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_WRK_RPC);
366 mp = (session_app_wrk_rpc_msg_t *) app_evt->evt->data;
367 mp->client_index = wrk->api_client_handle;
368 mp->wrk_index = dst_wrk->vpp_wrk_index;
369 clib_memcpy (mp->data, data, data_len);
370 app_send_ctrl_evt_to_vpp (mq, app_evt);
374 clib_spinlock_unlock (&vcm->workers_lock);
379 vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp,
382 vcl_session_t *session, *listen_session;
383 svm_fifo_t *rx_fifo, *tx_fifo;
387 session = vcl_session_alloc (wrk);
389 listen_session = vcl_session_get (wrk, ls_index);
390 if (listen_session->vpp_handle != mp->listener_handle)
392 VDBG (0, "ERROR: listener handle %lu does not match session %u",
393 mp->listener_handle, ls_index);
397 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
399 VDBG (0, "ERROR: segment for session %u is not mounted!",
400 session->session_index);
404 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
405 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
406 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
408 rx_fifo->client_session_index = session->session_index;
409 tx_fifo->client_session_index = session->session_index;
410 rx_fifo->client_thread_index = vcl_get_worker_index ();
411 tx_fifo->client_thread_index = vcl_get_worker_index ();
412 vpp_wrk_index = tx_fifo->master_thread_index;
413 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
414 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
416 session->vpp_handle = mp->handle;
417 session->vpp_thread_index = rx_fifo->master_thread_index;
418 session->rx_fifo = rx_fifo;
419 session->tx_fifo = tx_fifo;
421 session->session_state = VCL_STATE_ACCEPT;
422 session->transport.rmt_port = mp->rmt.port;
423 session->transport.is_ip4 = mp->rmt.is_ip4;
424 clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip,
425 sizeof (ip46_address_t));
427 vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index);
428 session->transport.lcl_port = listen_session->transport.lcl_port;
429 session->transport.lcl_ip = listen_session->transport.lcl_ip;
430 session->session_type = listen_session->session_type;
431 session->is_dgram = vcl_proto_is_dgram (session->session_type);
432 session->listener_index = listen_session->session_index;
433 listen_session->n_accepted_sessions++;
435 VDBG (1, "session %u [0x%llx]: client accept request from %s address %U"
436 " port %d queue %p!", session->session_index, mp->handle,
437 mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip,
438 mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
439 clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q);
440 vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index);
442 vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context,
443 session->vpp_handle, 0);
445 return session->session_index;
448 evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *);
449 vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle,
450 VNET_API_ERROR_INVALID_ARGUMENT);
451 vcl_session_free (wrk, session);
452 return VCL_INVALID_SESSION_INDEX;
456 vcl_session_connected_handler (vcl_worker_t * wrk,
457 session_connected_msg_t * mp)
459 u32 session_index, vpp_wrk_index;
460 svm_fifo_t *rx_fifo, *tx_fifo;
461 vcl_session_t *session = 0;
463 session_index = mp->context;
464 session = vcl_session_get (wrk, session_index);
467 VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!",
468 mp->handle, session_index);
469 return VCL_INVALID_SESSION_INDEX;
473 VDBG (0, "ERROR: session index %u: connect failed! %U",
474 session_index, format_session_error, mp->retval);
475 session->session_state = VCL_STATE_DETACHED;
476 session->vpp_handle = mp->handle;
477 return session_index;
480 session->vpp_handle = mp->handle;
481 session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address,
483 rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *);
484 tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *);
485 if (vcl_segment_is_not_mounted (wrk, mp->segment_handle))
487 VDBG (0, "segment for session %u is not mounted!",
488 session->session_index);
489 session->session_state = VCL_STATE_DETACHED;
490 vcl_send_session_disconnect (wrk, session);
491 return session_index;
494 rx_fifo->client_session_index = session_index;
495 tx_fifo->client_session_index = session_index;
496 rx_fifo->client_thread_index = vcl_get_worker_index ();
497 tx_fifo->client_thread_index = vcl_get_worker_index ();
499 vpp_wrk_index = tx_fifo->master_thread_index;
500 vec_validate (wrk->vpp_event_queues, vpp_wrk_index);
501 wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q;
505 session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *);
506 session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *);
507 if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle))
509 VDBG (0, "ct segment for session %u is not mounted!",
510 session->session_index);
511 session->session_state = VCL_STATE_DETACHED;
512 vcl_send_session_disconnect (wrk, session);
513 return session_index;
517 session->rx_fifo = rx_fifo;
518 session->tx_fifo = tx_fifo;
519 session->vpp_thread_index = rx_fifo->master_thread_index;
520 session->transport.is_ip4 = mp->lcl.is_ip4;
521 clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip,
522 sizeof (session->transport.lcl_ip));
523 session->transport.lcl_port = mp->lcl.port;
525 /* Application closed session before connect reply */
526 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)
527 && session->session_state == VCL_STATE_CLOSED)
528 vcl_send_session_disconnect (wrk, session);
530 session->session_state = VCL_STATE_CONNECT;
532 /* Add it to lookup table */
533 vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index);
535 VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p,"
536 " refcnt %d", session_index, mp->handle, session->rx_fifo,
537 session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt);
539 return session_index;
543 vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags)
545 vcl_session_msg_t *accepted_msg;
548 for (i = 0; i < vec_len (session->accept_evts_fifo); i++)
550 accepted_msg = &session->accept_evts_fifo[i];
551 if (accepted_msg->accepted_msg.handle == handle)
553 accepted_msg->flags |= flags;
561 vcl_session_reset_handler (vcl_worker_t * wrk,
562 session_reset_msg_t * reset_msg)
564 vcl_session_t *session;
567 sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle);
568 session = vcl_session_get (wrk, sid);
571 VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle);
572 return VCL_INVALID_SESSION_INDEX;
575 /* Caught a reset before actually accepting the session */
576 if (session->session_state == VCL_STATE_LISTEN)
579 if (!vcl_flag_accepted_session (session, reset_msg->handle,
580 VCL_ACCEPTED_F_RESET))
581 VDBG (0, "session was not accepted!");
582 return VCL_INVALID_SESSION_INDEX;
585 if (session->session_state != VCL_STATE_CLOSED)
586 session->session_state = VCL_STATE_DISCONNECT;
587 VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle);
592 vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp)
594 vcl_session_t *session;
595 u32 sid = mp->context;
597 session = vcl_session_get (wrk, sid);
600 VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle,
601 format_session_error, mp->retval);
604 session->session_state = VCL_STATE_DETACHED;
605 session->vpp_handle = mp->handle;
610 VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!",
612 return VCL_INVALID_SESSION_INDEX;
616 session->vpp_handle = mp->handle;
617 session->transport.is_ip4 = mp->lcl_is_ip4;
618 clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip,
619 sizeof (ip46_address_t));
620 session->transport.lcl_port = mp->lcl_port;
621 vcl_session_table_add_listener (wrk, mp->handle, sid);
622 session->session_state = VCL_STATE_LISTEN;
624 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
625 vec_validate (wrk->vpp_event_queues, 0);
626 wrk->vpp_event_queues[0] = session->vpp_evt_q;
628 if (vcl_session_is_cl (session))
630 svm_fifo_t *rx_fifo, *tx_fifo;
631 session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
632 rx_fifo = uword_to_pointer (mp->rx_fifo, svm_fifo_t *);
633 rx_fifo->client_session_index = sid;
634 tx_fifo = uword_to_pointer (mp->tx_fifo, svm_fifo_t *);
635 tx_fifo->client_session_index = sid;
636 session->rx_fifo = rx_fifo;
637 session->tx_fifo = tx_fifo;
640 VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle);
645 vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data)
647 session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data;
650 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
653 VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle);
656 if (s->session_state != VCL_STATE_DISCONNECT)
658 /* Connected udp listener */
659 if (s->session_type == VPPCOM_PROTO_UDP
660 && s->session_state == VCL_STATE_CLOSED)
663 VDBG (0, "Unlisten session in wrong state %llx", mp->handle);
668 VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U",
669 s->session_index, mp->handle, format_session_error, mp->retval);
671 if (mp->context != wrk->wrk_index)
672 VDBG (0, "wrong context");
674 vcl_session_table_del_vpp_handle (wrk, mp->handle);
675 vcl_session_free (wrk, s);
679 vcl_session_migrated_handler (vcl_worker_t * wrk, void *data)
681 session_migrated_msg_t *mp = (session_migrated_msg_t *) data;
684 s = vcl_session_get_w_vpp_handle (wrk, mp->handle);
687 VDBG (0, "Migrated notification with wrong handle %llx", mp->handle);
691 s->vpp_thread_index = mp->vpp_thread_index;
692 s->vpp_handle = mp->new_handle;
693 s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *);
695 vec_validate (wrk->vpp_event_queues, s->vpp_thread_index);
696 wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q;
698 vcl_session_table_del_vpp_handle (wrk, mp->handle);
699 vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index);
701 /* Generate new tx event if we have outstanding data */
702 if (svm_fifo_has_event (s->tx_fifo))
703 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
704 SESSION_IO_EVT_TX, SVM_Q_WAIT);
706 VDBG (0, "Migrated 0x%lx to thread %u 0x%lx", mp->handle,
707 s->vpp_thread_index, mp->new_handle);
710 static vcl_session_t *
711 vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg)
713 vcl_session_msg_t *vcl_msg;
714 vcl_session_t *session;
716 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
717 if (PREDICT_FALSE (session != 0))
718 VWRN ("session overlap handle %lu state %u!", msg->handle,
719 session->session_state);
721 session = vcl_session_table_lookup_listener (wrk, msg->listener_handle);
724 VERR ("couldn't find listen session: listener handle %llx",
725 msg->listener_handle);
729 clib_fifo_add2 (session->accept_evts_fifo, vcl_msg);
731 vcl_msg->accepted_msg = *msg;
732 /* Session handle points to listener until fully accepted by app */
733 vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index);
738 static vcl_session_t *
739 vcl_session_disconnected_handler (vcl_worker_t * wrk,
740 session_disconnected_msg_t * msg)
742 vcl_session_t *session;
744 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
747 VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle);
751 /* Late disconnect notification on a session that has been closed */
752 if (session->session_state == VCL_STATE_CLOSED)
755 /* Caught a disconnect before actually accepting the session */
756 if (session->session_state == VCL_STATE_LISTEN)
758 if (!vcl_flag_accepted_session (session, msg->handle,
759 VCL_ACCEPTED_F_CLOSED))
760 VDBG (0, "session was not accepted!");
764 /* If not already reset change state */
765 if (session->session_state != VCL_STATE_DISCONNECT)
766 session->session_state = VCL_STATE_VPP_CLOSING;
772 vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data)
774 session_cleanup_msg_t *msg;
775 vcl_session_t *session;
777 msg = (session_cleanup_msg_t *) data;
778 session = vcl_session_get_w_vpp_handle (wrk, msg->handle);
781 VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle);
785 if (msg->type == SESSION_CLEANUP_TRANSPORT)
787 /* Transport was cleaned up before we confirmed close. Probably the
788 * app is still waiting for some data that cannot be delivered.
789 * Confirm close to make sure everything is cleaned up */
790 if (session->session_state == VCL_STATE_VPP_CLOSING)
791 vcl_session_cleanup (wrk, session, vcl_session_handle (session),
792 1 /* do_disconnect */ );
796 vcl_session_table_del_vpp_handle (wrk, msg->handle);
797 /* Should not happen. App did not close the connection so don't free it. */
798 if (session->session_state != VCL_STATE_CLOSED)
800 VDBG (0, "app did not close session %d", session->session_index);
801 session->session_state = VCL_STATE_DETACHED;
802 session->vpp_handle = VCL_INVALID_SESSION_HANDLE;
805 vcl_session_free (wrk, session);
809 vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data)
811 session_req_worker_update_msg_t *msg;
814 msg = (session_req_worker_update_msg_t *) data;
815 s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle);
819 vec_add1 (wrk->pending_session_wrk_updates, s->session_index);
823 vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data)
825 session_worker_update_reply_msg_t *msg;
828 msg = (session_worker_update_reply_msg_t *) data;
829 s = vcl_session_get_w_vpp_handle (wrk, msg->handle);
832 VDBG (0, "unknown handle 0x%llx", msg->handle);
835 if (vcl_segment_is_not_mounted (wrk, msg->segment_handle))
837 clib_warning ("segment for session %u is not mounted!",
844 s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *);
845 s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *);
846 s->rx_fifo->client_session_index = s->session_index;
847 s->tx_fifo->client_session_index = s->session_index;
848 s->rx_fifo->client_thread_index = wrk->wrk_index;
849 s->tx_fifo->client_thread_index = wrk->wrk_index;
851 s->session_state = VCL_STATE_UPDATED;
853 VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index,
854 s->vpp_handle, wrk->wrk_index);
858 vcl_api_recv_fd (vcl_worker_t * wrk, int *fds, int n_fds)
861 if (vcm->cfg.vpp_app_socket_api)
862 return vcl_sapi_recv_fds (wrk, fds, n_fds);
864 return vcl_bapi_recv_fds (wrk, fds, n_fds);
868 vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data)
870 ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM;
871 session_app_add_segment_msg_t *msg;
875 msg = (session_app_add_segment_msg_t *) data;
879 vcl_api_recv_fd (wrk, &fd, 1);
880 seg_type = SSVM_SEGMENT_MEMFD;
883 segment_handle = msg->segment_handle;
884 if (segment_handle == VCL_INVALID_SEGMENT_HANDLE)
886 clib_warning ("invalid segment handle");
890 if (vcl_segment_attach (segment_handle, (char *) msg->segment_name,
893 VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name);
897 VDBG (1, "mapped new segment '%s' size %d", msg->segment_name,
902 vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data)
904 session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data;
905 vcl_segment_detach (msg->segment_handle);
906 VDBG (1, "Unmapped segment: %d", msg->segment_handle);
910 vcl_worker_rpc_handler (vcl_worker_t * wrk, void *data)
912 if (!vcm->wrk_rpc_fn)
915 (vcm->wrk_rpc_fn) (((session_app_wrk_rpc_msg_t *) data)->data);
919 vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e)
921 session_disconnected_msg_t *disconnected_msg;
924 switch (e->event_type)
926 case SESSION_IO_EVT_RX:
927 case SESSION_IO_EVT_TX:
928 s = vcl_session_get (wrk, e->session_index);
929 if (!s || !(vcl_session_is_ready (s)))
931 vec_add1 (wrk->unhandled_evts_vector, *e);
933 case SESSION_CTRL_EVT_ACCEPTED:
934 vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data);
936 case SESSION_CTRL_EVT_CONNECTED:
937 vcl_session_connected_handler (wrk,
938 (session_connected_msg_t *) e->data);
940 case SESSION_CTRL_EVT_DISCONNECTED:
941 disconnected_msg = (session_disconnected_msg_t *) e->data;
942 s = vcl_session_disconnected_handler (wrk, disconnected_msg);
945 VDBG (0, "disconnected session %u [0x%llx]", s->session_index,
948 case SESSION_CTRL_EVT_RESET:
949 vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
951 case SESSION_CTRL_EVT_BOUND:
952 vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data);
954 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
955 vcl_session_unlisten_reply_handler (wrk, e->data);
957 case SESSION_CTRL_EVT_MIGRATED:
958 vcl_session_migrated_handler (wrk, e->data);
960 case SESSION_CTRL_EVT_CLEANUP:
961 vcl_session_cleanup_handler (wrk, e->data);
963 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
964 vcl_session_req_worker_update_handler (wrk, e->data);
966 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
967 vcl_session_worker_update_reply_handler (wrk, e->data);
969 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
970 vcl_session_app_add_segment_handler (wrk, e->data);
972 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
973 vcl_session_app_del_segment_handler (wrk, e->data);
975 case SESSION_CTRL_EVT_APP_WRK_RPC:
976 vcl_worker_rpc_handler (wrk, e->data);
979 clib_warning ("unhandled %u", e->event_type);
985 vppcom_wait_for_session_state_change (u32 session_index,
986 vcl_session_state_t state,
989 vcl_worker_t *wrk = vcl_worker_get_current ();
990 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
991 vcl_session_t *volatile session;
997 session = vcl_session_get (wrk, session_index);
998 if (PREDICT_FALSE (!session))
1000 return VPPCOM_EBADFD;
1002 if (session->session_state & state)
1006 if (session->session_state == VCL_STATE_DETACHED)
1008 return VPPCOM_ECONNREFUSED;
1011 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0))
1016 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1017 vcl_handle_mq_event (wrk, e);
1018 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1020 while (clib_time_now (&wrk->clib_time) < timeout);
1022 VDBG (0, "timeout waiting for state 0x%x (%s)", state,
1023 vppcom_session_state_str (state));
1024 vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state);
1026 return VPPCOM_ETIMEDOUT;
1030 vcl_handle_pending_wrk_updates (vcl_worker_t * wrk)
1032 vcl_session_state_t state;
1036 if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0))
1039 vec_foreach (sip, wrk->pending_session_wrk_updates)
1041 s = vcl_session_get (wrk, *sip);
1042 vcl_send_session_worker_update (wrk, s, wrk->wrk_index);
1043 state = s->session_state;
1044 vppcom_wait_for_session_state_change (s->session_index, VCL_STATE_UPDATED,
1046 s->session_state = state;
1048 vec_reset_length (wrk->pending_session_wrk_updates);
1052 vcl_flush_mq_events (void)
1054 vcl_worker_t *wrk = vcl_worker_get_current ();
1055 svm_msg_q_msg_t *msg;
1060 mq = wrk->app_event_queue;
1061 svm_msg_q_lock (mq);
1062 vcl_mq_dequeue_batch (wrk, mq, ~0);
1063 svm_msg_q_unlock (mq);
1065 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
1067 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
1068 e = svm_msg_q_msg_data (mq, msg);
1069 vcl_handle_mq_event (wrk, e);
1070 svm_msg_q_free_msg (mq, msg);
1072 vec_reset_length (wrk->mq_msg_vector);
1073 vcl_handle_pending_wrk_updates (wrk);
1077 vppcom_session_unbind (u32 session_handle)
1079 vcl_worker_t *wrk = vcl_worker_get_current ();
1080 session_accepted_msg_t *accepted_msg;
1081 vcl_session_t *session = 0;
1082 vcl_session_msg_t *evt;
1084 session = vcl_session_get_w_handle (wrk, session_handle);
1086 return VPPCOM_EBADFD;
1088 /* Flush pending accept events, if any */
1089 while (clib_fifo_elts (session->accept_evts_fifo))
1091 clib_fifo_sub2 (session->accept_evts_fifo, evt);
1092 accepted_msg = &evt->accepted_msg;
1093 vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle);
1094 vcl_send_session_accepted_reply (session->vpp_evt_q,
1095 accepted_msg->context,
1096 session->vpp_handle, -1);
1098 clib_fifo_free (session->accept_evts_fifo);
1100 vcl_send_session_unlisten (wrk, session);
1102 VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index,
1103 session->vpp_handle);
1104 vcl_evt (VCL_EVT_UNBIND, session);
1106 session->vpp_handle = ~0;
1107 session->session_state = VCL_STATE_DISCONNECT;
1113 vppcom_session_disconnect (u32 session_handle)
1115 vcl_worker_t *wrk = vcl_worker_get_current ();
1116 svm_msg_q_t *vpp_evt_q;
1117 vcl_session_t *session, *listen_session;
1118 vcl_session_state_t state;
1121 session = vcl_session_get_w_handle (wrk, session_handle);
1123 return VPPCOM_EBADFD;
1125 vpp_handle = session->vpp_handle;
1126 state = session->session_state;
1128 VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index,
1129 vpp_handle, state, vppcom_session_state_str (state));
1131 if (PREDICT_FALSE (state == VCL_STATE_LISTEN))
1133 VDBG (0, "ERROR: Cannot disconnect a listen socket!");
1134 return VPPCOM_EBADFD;
1137 if (state == VCL_STATE_VPP_CLOSING)
1139 vpp_evt_q = vcl_session_vpp_evt_q (wrk, session);
1140 vcl_send_session_disconnected_reply (vpp_evt_q, wrk->api_client_handle,
1142 VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...",
1143 session->session_index, vpp_handle);
1147 /* Session doesn't have an event queue yet. Probably a non-blocking
1148 * connect. Wait for the reply */
1149 if (PREDICT_FALSE (!session->vpp_evt_q))
1152 VDBG (1, "session %u [0x%llx]: sending disconnect...",
1153 session->session_index, vpp_handle);
1154 vcl_send_session_disconnect (wrk, session);
1157 if (session->listener_index != VCL_INVALID_SESSION_INDEX)
1159 listen_session = vcl_session_get (wrk, session->listener_index);
1160 listen_session->n_accepted_sessions--;
1169 * Notify vpp of the disconnect and mark the worker as free. If we're the
1170 * last worker, do a full cleanup otherwise, since we're probably a forked
1171 * child, avoid syscalls as much as possible. We might've lost privileges.
1174 vppcom_app_exit (void)
1176 if (!pool_elts (vcm->workers))
1178 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
1179 vcl_set_worker_index (~0);
1180 vcl_elog_stop (vcm);
1184 vcl_api_attach (void)
1186 if (vcm->cfg.vpp_app_socket_api)
1187 return vcl_sapi_attach ();
1189 return vcl_bapi_attach ();
1193 vcl_api_detach (vcl_worker_t * wrk)
1195 vcl_send_app_detach (wrk);
1197 if (vcm->cfg.vpp_app_socket_api)
1198 return vcl_sapi_detach (wrk);
1200 return vcl_bapi_disconnect_from_vpp ();
1204 * VPPCOM Public API functions
1207 vppcom_app_create (const char *app_name)
1209 vppcom_cfg_t *vcl_cfg = &vcm->cfg;
1214 VDBG (1, "already initialized");
1215 return VPPCOM_EEXIST;
1219 vppcom_cfg (&vcm->cfg);
1220 vcl_cfg = &vcm->cfg;
1222 vcm->main_cpu = pthread_self ();
1223 vcm->main_pid = getpid ();
1224 vcm->app_name = format (0, "%s", app_name);
1225 fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva,
1226 20 /* timeout in secs */ );
1227 pool_alloc (vcm->workers, vcl_cfg->max_workers);
1228 clib_spinlock_init (&vcm->workers_lock);
1229 clib_rwlock_init (&vcm->segment_table_lock);
1230 atexit (vppcom_app_exit);
1231 vcl_elog_init (vcm);
1233 /* Allocate default worker */
1234 vcl_worker_alloc_and_init ();
1236 if ((rv = vcl_api_attach ()))
1239 VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name,
1240 vcm->workers[0].api_client_handle, vcm->workers[0].api_client_handle);
1246 vppcom_app_destroy (void)
1248 vcl_worker_t *wrk, *current_wrk;
1251 if (!pool_elts (vcm->workers))
1254 vcl_evt (VCL_EVT_DETACH, vcm);
1256 current_wrk = vcl_worker_get_current ();
1259 pool_foreach (wrk, vcm->workers, ({
1260 if (current_wrk != wrk)
1261 vcl_worker_cleanup (wrk, 0 /* notify vpp */ );
1265 vcl_api_detach (current_wrk);
1266 vcl_worker_cleanup (current_wrk, 0 /* notify vpp */ );
1268 vcl_elog_stop (vcm);
1271 * Free the heap and fix vcm
1273 heap = clib_mem_get_heap ();
1274 munmap (clib_mem_get_heap_base (heap), clib_mem_get_heap_size (heap));
1276 vcm = &_vppcom_main;
1281 vppcom_session_create (u8 proto, u8 is_nonblocking)
1283 vcl_worker_t *wrk = vcl_worker_get_current ();
1284 vcl_session_t *session;
1286 session = vcl_session_alloc (wrk);
1288 session->session_type = proto;
1289 session->session_state = VCL_STATE_CLOSED;
1290 session->vpp_handle = ~0;
1291 session->is_dgram = vcl_proto_is_dgram (proto);
1294 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
1296 vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state,
1297 is_nonblocking, session_index);
1299 VDBG (0, "created session %u", session->session_index);
1301 return vcl_session_handle (session);
1305 vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * s,
1306 vcl_session_handle_t sh, u8 do_disconnect)
1308 vcl_session_state_t state;
1309 u32 next_sh, vep_sh;
1315 next_sh = s->vep.next_sh;
1316 vep_sh = s->vep.vep_sh;
1317 state = s->session_state;
1318 vpp_handle = s->vpp_handle;
1320 VDBG (1, "session %u [0x%llx] closing", s->session_index, vpp_handle);
1324 while (next_sh != ~0)
1326 rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0);
1327 if (PREDICT_FALSE (rv < 0))
1328 VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u"
1329 " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv,
1330 vppcom_retval_str (rv));
1332 next_sh = s->vep.next_sh;
1337 if (s->is_vep_session)
1339 rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0);
1341 VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u "
1342 "failed! rv %d (%s)", s->session_index, vpp_handle,
1343 vep_sh, rv, vppcom_retval_str (rv));
1348 VDBG (1, "session %u [0x%llx] disconnect skipped",
1349 s->session_index, vpp_handle);
1353 if (state == VCL_STATE_LISTEN)
1355 rv = vppcom_session_unbind (sh);
1356 if (PREDICT_FALSE (rv < 0))
1357 VDBG (0, "session %u [0x%llx]: listener unbind failed! "
1358 "rv %d (%s)", s->session_index, vpp_handle, rv,
1359 vppcom_retval_str (rv));
1362 else if ((vcl_session_is_ready (s))
1363 || (vcl_session_is_connectable_listener (wrk, s)))
1365 rv = vppcom_session_disconnect (sh);
1366 if (PREDICT_FALSE (rv < 0))
1367 VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!"
1368 " rv %d (%s)", s->session_index, vpp_handle,
1369 rv, vppcom_retval_str (rv));
1371 else if (state == VCL_STATE_DISCONNECT)
1373 svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, s);
1374 vcl_send_session_reset_reply (mq, wrk->api_client_handle,
1377 else if (state == VCL_STATE_DETACHED)
1379 /* Should not happen. VPP cleaned up before app confirmed close */
1380 VDBG (0, "vpp freed session %d before close", s->session_index);
1384 s->session_state = VCL_STATE_CLOSED;
1386 /* Session is removed only after vpp confirms the disconnect */
1390 vcl_session_table_del_vpp_handle (wrk, vpp_handle);
1392 vcl_session_free (wrk, s);
1393 vcl_evt (VCL_EVT_CLOSE, s, rv);
1399 vppcom_session_close (uint32_t session_handle)
1401 vcl_worker_t *wrk = vcl_worker_get_current ();
1402 vcl_session_t *session;
1404 session = vcl_session_get_w_handle (wrk, session_handle);
1406 return VPPCOM_EBADFD;
1407 return vcl_session_cleanup (wrk, session, session_handle,
1408 1 /* do_disconnect */ );
1412 vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep)
1414 vcl_worker_t *wrk = vcl_worker_get_current ();
1415 vcl_session_t *session = 0;
1418 return VPPCOM_EINVAL;
1420 session = vcl_session_get_w_handle (wrk, session_handle);
1422 return VPPCOM_EBADFD;
1424 if (session->is_vep)
1426 VDBG (0, "ERROR: cannot bind to epoll session %u!",
1427 session->session_index);
1428 return VPPCOM_EBADFD;
1431 session->transport.is_ip4 = ep->is_ip4;
1433 clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip,
1434 sizeof (ip4_address_t));
1436 clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip,
1437 sizeof (ip6_address_t));
1438 session->transport.lcl_port = ep->port;
1440 VDBG (0, "session %u handle %u: binding to local %s address %U port %u, "
1441 "proto %s", session->session_index, session_handle,
1442 session->transport.is_ip4 ? "IPv4" : "IPv6",
1443 format_ip46_address, &session->transport.lcl_ip,
1444 session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1445 clib_net_to_host_u16 (session->transport.lcl_port),
1446 vppcom_proto_str (session->session_type));
1447 vcl_evt (VCL_EVT_BIND, session);
1449 if (session->session_type == VPPCOM_PROTO_UDP)
1450 vppcom_session_listen (session_handle, 10);
1456 vppcom_session_listen (uint32_t listen_sh, uint32_t q_len)
1458 vcl_worker_t *wrk = vcl_worker_get_current ();
1459 vcl_session_t *listen_session = 0;
1460 u64 listen_vpp_handle;
1463 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1464 if (!listen_session || listen_session->is_vep)
1465 return VPPCOM_EBADFD;
1467 if (q_len == 0 || q_len == ~0)
1468 q_len = vcm->cfg.listen_queue_size;
1470 listen_vpp_handle = listen_session->vpp_handle;
1471 if (listen_session->session_state == VCL_STATE_LISTEN)
1473 VDBG (0, "session %u [0x%llx]: already in listen state!",
1474 listen_sh, listen_vpp_handle);
1478 VDBG (0, "session %u: sending vpp listen request...", listen_sh);
1481 * Send listen request to vpp and wait for reply
1483 vcl_send_session_listen (wrk, listen_session);
1484 rv = vppcom_wait_for_session_state_change (listen_session->session_index,
1486 vcm->cfg.session_timeout);
1488 if (PREDICT_FALSE (rv))
1490 listen_session = vcl_session_get_w_handle (wrk, listen_sh);
1491 VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)",
1492 listen_sh, listen_session->vpp_handle, rv,
1493 vppcom_retval_str (rv));
1501 validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls)
1505 VDBG (0, "ERROR: cannot accept on epoll session %u!",
1507 return VPPCOM_EBADFD;
1510 if ((ls->session_state != VCL_STATE_LISTEN)
1511 && (!vcl_session_is_connectable_listener (wrk, ls)))
1514 "ERROR: session [0x%llx]: not in listen state! state 0x%x"
1515 " (%s)", ls->vpp_handle, ls->session_state,
1516 vppcom_session_state_str (ls->session_state));
1517 return VPPCOM_EBADFD;
1523 vppcom_unformat_proto (uint8_t * proto, char *proto_str)
1525 if (!strcmp (proto_str, "TCP"))
1526 *proto = VPPCOM_PROTO_TCP;
1527 else if (!strcmp (proto_str, "tcp"))
1528 *proto = VPPCOM_PROTO_TCP;
1529 else if (!strcmp (proto_str, "UDP"))
1530 *proto = VPPCOM_PROTO_UDP;
1531 else if (!strcmp (proto_str, "udp"))
1532 *proto = VPPCOM_PROTO_UDP;
1533 else if (!strcmp (proto_str, "TLS"))
1534 *proto = VPPCOM_PROTO_TLS;
1535 else if (!strcmp (proto_str, "tls"))
1536 *proto = VPPCOM_PROTO_TLS;
1537 else if (!strcmp (proto_str, "QUIC"))
1538 *proto = VPPCOM_PROTO_QUIC;
1539 else if (!strcmp (proto_str, "quic"))
1540 *proto = VPPCOM_PROTO_QUIC;
1547 vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep,
1550 u32 client_session_index = ~0, listen_session_index, accept_flags = 0;
1551 vcl_worker_t *wrk = vcl_worker_get_current ();
1552 session_accepted_msg_t accepted_msg;
1553 vcl_session_t *listen_session = 0;
1554 vcl_session_t *client_session = 0;
1555 vcl_session_msg_t *evt;
1556 svm_msg_q_msg_t msg;
1561 listen_session = vcl_session_get_w_handle (wrk, listen_session_handle);
1562 if (!listen_session)
1563 return VPPCOM_EBADFD;
1565 listen_session_index = listen_session->session_index;
1566 if ((rv = validate_args_session_accept_ (wrk, listen_session)))
1569 if (clib_fifo_elts (listen_session->accept_evts_fifo))
1571 clib_fifo_sub2 (listen_session->accept_evts_fifo, evt);
1572 accept_flags = evt->flags;
1573 accepted_msg = evt->accepted_msg;
1577 is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr,
1578 VCL_SESS_ATTR_NONBLOCK);
1581 if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking)
1582 return VPPCOM_EAGAIN;
1584 if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0))
1585 return VPPCOM_EAGAIN;
1587 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
1588 if (e->event_type != SESSION_CTRL_EVT_ACCEPTED)
1590 vcl_handle_mq_event (wrk, e);
1591 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1594 clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg));
1595 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
1601 client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg,
1602 listen_session_index);
1603 if (client_session_index == VCL_INVALID_SESSION_INDEX)
1604 return VPPCOM_ECONNABORTED;
1606 listen_session = vcl_session_get (wrk, listen_session_index);
1607 client_session = vcl_session_get (wrk, client_session_index);
1609 if (flags & O_NONBLOCK)
1610 VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK);
1612 VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx],"
1613 " flags %d, is_nonblocking %u", listen_session->session_index,
1614 listen_session->vpp_handle, client_session_index,
1615 client_session->vpp_handle, flags,
1616 VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK));
1620 ep->is_ip4 = client_session->transport.is_ip4;
1621 ep->port = client_session->transport.rmt_port;
1622 if (client_session->transport.is_ip4)
1623 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4,
1624 sizeof (ip4_address_t));
1626 clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6,
1627 sizeof (ip6_address_t));
1630 VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u "
1631 "local: %U:%u", listen_session_handle, listen_session->vpp_handle,
1632 client_session_index, client_session->vpp_handle,
1633 format_ip46_address, &client_session->transport.rmt_ip,
1634 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1635 clib_net_to_host_u16 (client_session->transport.rmt_port),
1636 format_ip46_address, &client_session->transport.lcl_ip,
1637 client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
1638 clib_net_to_host_u16 (client_session->transport.lcl_port));
1639 vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session,
1640 client_session_index);
1643 * Session might have been closed already
1647 if (accept_flags & VCL_ACCEPTED_F_CLOSED)
1648 client_session->session_state = VCL_STATE_VPP_CLOSING;
1649 else if (accept_flags & VCL_ACCEPTED_F_RESET)
1650 client_session->session_state = VCL_STATE_DISCONNECT;
1652 return vcl_session_handle (client_session);
1656 vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep)
1658 vcl_worker_t *wrk = vcl_worker_get_current ();
1659 vcl_session_t *session = 0;
1663 session = vcl_session_get_w_handle (wrk, session_handle);
1665 return VPPCOM_EBADFD;
1666 session_index = session->session_index;
1668 if (PREDICT_FALSE (session->is_vep))
1670 VDBG (0, "ERROR: cannot connect epoll session %u!",
1671 session->session_index);
1672 return VPPCOM_EBADFD;
1675 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1677 VDBG (0, "session handle %u [0x%llx]: session already "
1678 "connected to %s %U port %d proto %s, state 0x%x (%s)",
1679 session_handle, session->vpp_handle,
1680 session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address,
1681 &session->transport.rmt_ip, session->transport.is_ip4 ?
1682 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1683 clib_net_to_host_u16 (session->transport.rmt_port),
1684 vppcom_proto_str (session->session_type), session->session_state,
1685 vppcom_session_state_str (session->session_state));
1689 /* Attempt to connect a connectionless listener */
1690 if (PREDICT_FALSE (session->session_state == VCL_STATE_LISTEN))
1692 if (session->session_type != VPPCOM_PROTO_UDP)
1693 return VPPCOM_EINVAL;
1694 vcl_send_session_unlisten (wrk, session);
1695 session->session_state = VCL_STATE_CLOSED;
1698 session->transport.is_ip4 = server_ep->is_ip4;
1699 vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep);
1700 session->transport.rmt_port = server_ep->port;
1701 session->parent_handle = VCL_INVALID_SESSION_HANDLE;
1702 session->flags |= VCL_SESSION_F_CONNECTED;
1704 VDBG (0, "session handle %u (%s): connecting to peer %s %U "
1705 "port %d proto %s", session_handle,
1706 vppcom_session_state_str (session->session_state),
1707 session->transport.is_ip4 ? "IPv4" : "IPv6",
1708 format_ip46_address,
1709 &session->transport.rmt_ip, session->transport.is_ip4 ?
1710 IP46_TYPE_IP4 : IP46_TYPE_IP6,
1711 clib_net_to_host_u16 (session->transport.rmt_port),
1712 vppcom_proto_str (session->session_type));
1714 vcl_send_session_connect (wrk, session);
1716 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK))
1718 /* State set to STATE_UPDATED to ensure the session is not assumed
1719 * to be open and to also allow the app to close it prior to vpp's
1720 * connected reply. */
1721 session->session_state = VCL_STATE_UPDATED;
1722 return VPPCOM_EINPROGRESS;
1726 * Wait for reply from vpp if blocking
1728 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_CONNECT,
1729 vcm->cfg.session_timeout);
1731 session = vcl_session_get (wrk, session_index);
1732 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1733 session->vpp_handle, rv ? "failed" : "succeeded");
1739 vppcom_session_stream_connect (uint32_t session_handle,
1740 uint32_t parent_session_handle)
1742 vcl_worker_t *wrk = vcl_worker_get_current ();
1743 vcl_session_t *session, *parent_session;
1744 u32 session_index, parent_session_index;
1747 session = vcl_session_get_w_handle (wrk, session_handle);
1749 return VPPCOM_EBADFD;
1750 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1751 if (!parent_session)
1752 return VPPCOM_EBADFD;
1754 session_index = session->session_index;
1755 parent_session_index = parent_session->session_index;
1756 if (PREDICT_FALSE (session->is_vep))
1758 VDBG (0, "ERROR: cannot connect epoll session %u!",
1759 session->session_index);
1760 return VPPCOM_EBADFD;
1763 if (PREDICT_FALSE (vcl_session_is_ready (session)))
1765 VDBG (0, "session handle %u [0x%llx]: session already "
1766 "connected to session %u [0x%llx] proto %s, state 0x%x (%s)",
1767 session_handle, session->vpp_handle,
1768 parent_session_handle, parent_session->vpp_handle,
1769 vppcom_proto_str (session->session_type), session->session_state,
1770 vppcom_session_state_str (session->session_state));
1774 /* Connect to quic session specifics */
1775 session->transport.is_ip4 = parent_session->transport.is_ip4;
1776 session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1;
1777 session->transport.rmt_port = 0;
1778 session->parent_handle = parent_session->vpp_handle;
1780 VDBG (0, "session handle %u: connecting to session %u [0x%llx]",
1781 session_handle, parent_session_handle, parent_session->vpp_handle);
1784 * Send connect request and wait for reply from vpp
1786 vcl_send_session_connect (wrk, session);
1787 rv = vppcom_wait_for_session_state_change (session_index, VCL_STATE_CONNECT,
1788 vcm->cfg.session_timeout);
1790 session->listener_index = parent_session_index;
1791 parent_session = vcl_session_get_w_handle (wrk, parent_session_handle);
1793 parent_session->n_accepted_sessions++;
1795 session = vcl_session_get (wrk, session_index);
1796 VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index,
1797 session->vpp_handle, rv ? "failed" : "succeeded");
1803 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
1805 return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid);
1809 vppcom_session_read_internal (uint32_t session_handle, void *buf, int n,
1812 vcl_worker_t *wrk = vcl_worker_get_current ();
1813 int rv, n_read = 0, is_nonblocking;
1814 vcl_session_t *s = 0;
1815 svm_fifo_t *rx_fifo;
1816 svm_msg_q_msg_t msg;
1821 if (PREDICT_FALSE (!buf))
1822 return VPPCOM_EINVAL;
1824 s = vcl_session_get_w_handle (wrk, session_handle);
1825 if (PREDICT_FALSE (!s || s->is_vep))
1826 return VPPCOM_EBADFD;
1828 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1830 VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)",
1831 s->session_index, s->vpp_handle, s->session_state,
1832 vppcom_session_state_str (s->session_state));
1833 return vcl_session_closed_error (s);
1836 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1837 is_ct = vcl_session_is_ct (s);
1838 mq = wrk->app_event_queue;
1839 rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo;
1842 if (svm_fifo_is_empty_cons (rx_fifo))
1846 if (vcl_session_is_closing (s))
1847 return vcl_session_closing_error (s);
1848 svm_fifo_unset_event (s->rx_fifo);
1849 return VPPCOM_EWOULDBLOCK;
1851 while (svm_fifo_is_empty_cons (rx_fifo))
1853 if (vcl_session_is_closing (s))
1854 return vcl_session_closing_error (s);
1856 svm_fifo_unset_event (s->rx_fifo);
1857 svm_msg_q_lock (mq);
1858 if (svm_msg_q_is_empty (mq))
1859 svm_msg_q_wait (mq);
1861 svm_msg_q_sub_w_lock (mq, &msg);
1862 e = svm_msg_q_msg_data (mq, &msg);
1863 svm_msg_q_unlock (mq);
1864 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1865 vcl_handle_mq_event (wrk, e);
1866 svm_msg_q_free_msg (mq, &msg);
1873 rv = app_recv_dgram_raw (rx_fifo, buf, n, &s->transport, 0, peek);
1875 rv = app_recv_stream_raw (rx_fifo, buf, n, 0, peek);
1880 if (svm_fifo_is_empty_cons (rx_fifo))
1882 svm_fifo_unset_event (s->rx_fifo);
1883 if (!svm_fifo_is_empty_cons (rx_fifo)
1884 && svm_fifo_set_event (s->rx_fifo) && is_nonblocking)
1886 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1887 e->event_type = SESSION_IO_EVT_RX;
1888 e->session_index = s->session_index;
1891 else if (PREDICT_FALSE (rv < n))
1893 /* More data enqueued while reading. Try to drain it
1894 * or fill the buffer */
1900 if (PREDICT_FALSE (svm_fifo_needs_deq_ntf (rx_fifo, n_read)))
1902 svm_fifo_clear_deq_ntf (rx_fifo);
1903 app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index,
1904 SESSION_IO_EVT_RX, SVM_Q_WAIT);
1907 VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index,
1908 s->vpp_handle, n_read, rx_fifo);
1914 vppcom_session_read (uint32_t session_handle, void *buf, size_t n)
1916 return (vppcom_session_read_internal (session_handle, buf, n, 0));
1920 vppcom_session_peek (uint32_t session_handle, void *buf, int n)
1922 return (vppcom_session_read_internal (session_handle, buf, n, 1));
1926 vppcom_session_read_segments (uint32_t session_handle,
1927 vppcom_data_segment_t * ds, uint32_t n_segments,
1930 vcl_worker_t *wrk = vcl_worker_get_current ();
1931 int n_read = 0, is_nonblocking;
1932 vcl_session_t *s = 0;
1933 svm_fifo_t *rx_fifo;
1934 svm_msg_q_msg_t msg;
1939 s = vcl_session_get_w_handle (wrk, session_handle);
1940 if (PREDICT_FALSE (!s || s->is_vep))
1941 return VPPCOM_EBADFD;
1943 if (PREDICT_FALSE (!vcl_session_is_open (s)))
1944 return vcl_session_closed_error (s);
1946 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
1947 is_ct = vcl_session_is_ct (s);
1948 mq = is_ct ? s->our_evt_q : wrk->app_event_queue;
1949 rx_fifo = s->rx_fifo;
1953 svm_fifo_unset_event (s->rx_fifo);
1955 if (svm_fifo_is_empty_cons (rx_fifo))
1959 svm_fifo_unset_event (rx_fifo);
1960 return VPPCOM_EWOULDBLOCK;
1962 while (svm_fifo_is_empty_cons (rx_fifo))
1964 if (vcl_session_is_closing (s))
1965 return vcl_session_closing_error (s);
1967 svm_fifo_unset_event (rx_fifo);
1968 svm_msg_q_lock (mq);
1969 if (svm_msg_q_is_empty (mq))
1970 svm_msg_q_wait (mq);
1972 svm_msg_q_sub_w_lock (mq, &msg);
1973 e = svm_msg_q_msg_data (mq, &msg);
1974 svm_msg_q_unlock (mq);
1975 if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct))
1976 vcl_handle_mq_event (wrk, e);
1977 svm_msg_q_free_msg (mq, &msg);
1981 n_read = svm_fifo_segments (rx_fifo, s->rx_bytes_pending,
1982 (svm_fifo_seg_t *) ds, n_segments, max_bytes);
1984 return VPPCOM_EAGAIN;
1986 if (svm_fifo_max_dequeue_cons (rx_fifo) == n_read)
1988 svm_fifo_unset_event (s->rx_fifo);
1989 if (svm_fifo_max_dequeue_cons (rx_fifo) != n_read
1990 && svm_fifo_set_event (s->rx_fifo)
1991 && VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK))
1994 vec_add2 (wrk->unhandled_evts_vector, e, 1);
1995 e->event_type = SESSION_IO_EVT_RX;
1996 e->session_index = s->session_index;
2000 s->rx_bytes_pending += n_read;
2005 vppcom_session_free_segments (uint32_t session_handle, uint32_t n_bytes)
2007 vcl_worker_t *wrk = vcl_worker_get_current ();
2010 s = vcl_session_get_w_handle (wrk, session_handle);
2011 if (PREDICT_FALSE (!s || s->is_vep))
2014 svm_fifo_dequeue_drop (s->rx_fifo, n_bytes);
2016 ASSERT (s->rx_bytes_pending < n_bytes);
2017 s->rx_bytes_pending -= n_bytes;
2021 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct)
2023 return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid);
2027 vcl_fifo_is_writeable (svm_fifo_t * f, u32 len, u8 is_dgram)
2029 u32 max_enq = svm_fifo_max_enqueue_prod (f);
2031 return max_enq >= (sizeof (session_dgram_hdr_t) + len);
2037 vppcom_session_write_inline (vcl_worker_t * wrk, vcl_session_t * s, void *buf,
2038 size_t n, u8 is_flush, u8 is_dgram)
2040 int n_write, is_nonblocking;
2041 session_evt_type_t et;
2042 svm_msg_q_msg_t msg;
2043 svm_fifo_t *tx_fifo;
2048 if (PREDICT_FALSE (!buf || n == 0))
2049 return VPPCOM_EINVAL;
2051 if (PREDICT_FALSE (s->is_vep))
2053 VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll"
2054 " session!", s->session_index, s->vpp_handle);
2055 return VPPCOM_EBADFD;
2058 if (PREDICT_FALSE (!vcl_session_is_open (s)))
2060 VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)",
2061 s->session_index, s->vpp_handle, s->session_state,
2062 vppcom_session_state_str (s->session_state));
2063 return vcl_session_closed_error (s);;
2066 is_ct = vcl_session_is_ct (s);
2067 tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo;
2068 is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK);
2070 mq = wrk->app_event_queue;
2071 if (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2075 return VPPCOM_EWOULDBLOCK;
2077 while (!vcl_fifo_is_writeable (tx_fifo, n, is_dgram))
2079 svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF);
2080 if (vcl_session_is_closing (s))
2081 return vcl_session_closing_error (s);
2082 svm_msg_q_lock (mq);
2083 if (svm_msg_q_is_empty (mq))
2084 svm_msg_q_wait (mq);
2086 svm_msg_q_sub_w_lock (mq, &msg);
2087 e = svm_msg_q_msg_data (mq, &msg);
2088 svm_msg_q_unlock (mq);
2090 if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct))
2091 vcl_handle_mq_event (wrk, e);
2092 svm_msg_q_free_msg (mq, &msg);
2096 et = SESSION_IO_EVT_TX;
2097 if (is_flush && !is_ct)
2098 et = SESSION_IO_EVT_TX_FLUSH;
2101 n_write = app_send_dgram_raw (tx_fifo, &s->transport,
2102 s->vpp_evt_q, buf, n, et,
2103 0 /* do_evt */ , SVM_Q_WAIT);
2105 n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et,
2106 0 /* do_evt */ , SVM_Q_WAIT);
2108 if (svm_fifo_set_event (s->tx_fifo))
2109 app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index,
2112 /* The underlying fifo segment can run out of memory */
2113 if (PREDICT_FALSE (n_write < 0))
2114 return VPPCOM_EAGAIN;
2116 VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index,
2117 s->vpp_handle, n_write);
2123 vppcom_session_write (uint32_t session_handle, void *buf, size_t n)
2125 vcl_worker_t *wrk = vcl_worker_get_current ();
2128 s = vcl_session_get_w_handle (wrk, session_handle);
2129 if (PREDICT_FALSE (!s))
2130 return VPPCOM_EBADFD;
2132 return vppcom_session_write_inline (wrk, s, buf, n,
2133 0 /* is_flush */ , s->is_dgram ? 1 : 0);
2137 vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n)
2139 vcl_worker_t *wrk = vcl_worker_get_current ();
2142 s = vcl_session_get_w_handle (wrk, session_handle);
2143 if (PREDICT_FALSE (!s))
2144 return VPPCOM_EBADFD;
2146 return vppcom_session_write_inline (wrk, s, buf, n,
2147 1 /* is_flush */ , s->is_dgram ? 1 : 0);
2150 #define vcl_fifo_rx_evt_valid_or_break(_s) \
2151 if (PREDICT_FALSE (!_s->rx_fifo)) \
2153 if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \
2155 if (!vcl_session_is_ct (_s)) \
2157 svm_fifo_unset_event (_s->rx_fifo); \
2158 if (svm_fifo_is_empty (_s->rx_fifo)) \
2161 else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2163 svm_fifo_unset_event (_s->rx_fifo); /* rx evts on actual fifo*/ \
2164 if (svm_fifo_is_empty (_s->ct_rx_fifo)) \
2170 vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e,
2171 unsigned long n_bits, unsigned long *read_map,
2172 unsigned long *write_map,
2173 unsigned long *except_map, u32 * bits_set)
2175 session_disconnected_msg_t *disconnected_msg;
2176 session_connected_msg_t *connected_msg;
2177 vcl_session_t *session;
2180 switch (e->event_type)
2182 case SESSION_IO_EVT_RX:
2183 sid = e->session_index;
2184 session = vcl_session_get (wrk, sid);
2185 if (!session || !vcl_session_is_open (session))
2187 vcl_fifo_rx_evt_valid_or_break (session);
2188 if (sid < n_bits && read_map)
2190 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2194 case SESSION_IO_EVT_TX:
2195 sid = e->session_index;
2196 session = vcl_session_get (wrk, sid);
2197 if (!session || !vcl_session_is_open (session))
2199 if (sid < n_bits && write_map)
2201 clib_bitmap_set_no_check ((uword *) write_map, sid, 1);
2205 case SESSION_CTRL_EVT_ACCEPTED:
2206 session = vcl_session_accepted (wrk,
2207 (session_accepted_msg_t *) e->data);
2210 sid = session->session_index;
2211 if (sid < n_bits && read_map)
2213 clib_bitmap_set_no_check ((uword *) read_map, sid, 1);
2217 case SESSION_CTRL_EVT_CONNECTED:
2218 connected_msg = (session_connected_msg_t *) e->data;
2219 sid = vcl_session_connected_handler (wrk, connected_msg);
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 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2233 sid = session->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 vcl_session_t *session;
2484 vppcom_epoll_t *vep;
2485 u32 sh = vep_handle;
2487 if (VPPCOM_DEBUG <= 2)
2490 session = vcl_session_get_w_handle (wrk, vep_handle);
2491 if (PREDICT_FALSE (!session))
2493 VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle);
2496 if (PREDICT_FALSE (!session->is_vep))
2498 VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle);
2501 vep = &session->vep;
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, session->is_vep, session->is_vep_session,
2508 vep->next_sh, vep->next_sh);
2510 for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh)
2512 session = vcl_session_get_w_handle (wrk, sh);
2513 if (PREDICT_FALSE (!session))
2515 VDBG (0, "ERROR: Invalid sh (%u)!", sh);
2518 if (PREDICT_FALSE (session->is_vep))
2520 VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle);
2522 else if (PREDICT_FALSE (!session->is_vep_session))
2524 VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh);
2527 vep = &session->vep;
2528 if (PREDICT_FALSE (vep->vep_sh != vep_handle))
2529 VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!",
2530 sh, session->vep.vep_sh, vep_handle);
2531 if (session->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->is_vep = 1;
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->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->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;
2643 s->is_vep_session = 1;
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->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->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->is_vep_session = 0;
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;
2790 vcl_session_t *session;
2793 switch (e->event_type)
2795 case SESSION_IO_EVT_RX:
2796 sid = e->session_index;
2797 session = vcl_session_get (wrk, sid);
2798 if (vcl_session_is_closed (session))
2800 vcl_fifo_rx_evt_valid_or_break (session);
2801 session_events = session->vep.ev.events;
2802 if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt)
2805 events[*num_ev].events |= EPOLLIN;
2806 session_evt_data = session->vep.ev.data.u64;
2807 session->has_rx_evt = 1;
2809 case SESSION_IO_EVT_TX:
2810 sid = e->session_index;
2811 session = vcl_session_get (wrk, sid);
2812 if (vcl_session_is_closed (session))
2814 session_events = session->vep.ev.events;
2815 if (!(EPOLLOUT & session_events))
2818 events[*num_ev].events |= EPOLLOUT;
2819 session_evt_data = session->vep.ev.data.u64;
2820 svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (session) ?
2821 session->ct_tx_fifo : session->tx_fifo);
2823 case SESSION_CTRL_EVT_ACCEPTED:
2824 session = vcl_session_accepted (wrk,
2825 (session_accepted_msg_t *) e->data);
2829 session_events = session->vep.ev.events;
2830 if (!(EPOLLIN & session_events))
2834 events[*num_ev].events |= EPOLLIN;
2835 session_evt_data = session->vep.ev.data.u64;
2837 case SESSION_CTRL_EVT_CONNECTED:
2838 connected_msg = (session_connected_msg_t *) e->data;
2839 sid = vcl_session_connected_handler (wrk, connected_msg);
2840 /* Generate EPOLLOUT because there's no connected event */
2841 session = vcl_session_get (wrk, sid);
2842 if (vcl_session_is_closed (session))
2844 session_events = session->vep.ev.events;
2845 if (!(EPOLLOUT & session_events))
2848 events[*num_ev].events |= EPOLLOUT;
2849 session_evt_data = session->vep.ev.data.u64;
2850 if (session->session_state == VCL_STATE_DETACHED)
2851 events[*num_ev].events |= EPOLLHUP;
2853 case SESSION_CTRL_EVT_DISCONNECTED:
2854 disconnected_msg = (session_disconnected_msg_t *) e->data;
2855 session = vcl_session_disconnected_handler (wrk, disconnected_msg);
2856 if (vcl_session_is_closed (session))
2858 session_events = session->vep.ev.events;
2860 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2861 session_evt_data = session->vep.ev.data.u64;
2863 case SESSION_CTRL_EVT_RESET:
2864 sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data);
2865 session = vcl_session_get (wrk, sid);
2866 if (vcl_session_is_closed (session))
2868 session_events = session->vep.ev.events;
2870 events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP;
2871 session_evt_data = session->vep.ev.data.u64;
2873 case SESSION_CTRL_EVT_UNLISTEN_REPLY:
2874 vcl_session_unlisten_reply_handler (wrk, e->data);
2876 case SESSION_CTRL_EVT_MIGRATED:
2877 vcl_session_migrated_handler (wrk, e->data);
2879 case SESSION_CTRL_EVT_CLEANUP:
2880 vcl_session_cleanup_handler (wrk, e->data);
2882 case SESSION_CTRL_EVT_REQ_WORKER_UPDATE:
2883 vcl_session_req_worker_update_handler (wrk, e->data);
2885 case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY:
2886 vcl_session_worker_update_reply_handler (wrk, e->data);
2888 case SESSION_CTRL_EVT_APP_ADD_SEGMENT:
2889 vcl_session_app_add_segment_handler (wrk, e->data);
2891 case SESSION_CTRL_EVT_APP_DEL_SEGMENT:
2892 vcl_session_app_del_segment_handler (wrk, e->data);
2894 case SESSION_CTRL_EVT_APP_WRK_RPC:
2895 vcl_worker_rpc_handler (wrk, e->data);
2898 VDBG (0, "unhandled: %u", e->event_type);
2904 events[*num_ev].data.u64 = session_evt_data;
2905 if (EPOLLONESHOT & session_events)
2907 session = vcl_session_get (wrk, sid);
2908 session->vep.ev.events = 0;
2915 vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq,
2916 struct epoll_event *events, u32 maxevents,
2917 double wait_for_time, u32 * num_ev)
2919 svm_msg_q_msg_t *msg;
2923 if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq))
2924 goto handle_dequeued;
2926 svm_msg_q_lock (mq);
2927 if (svm_msg_q_is_empty (mq))
2931 svm_msg_q_unlock (mq);
2934 else if (wait_for_time < 0)
2936 svm_msg_q_wait (mq);
2940 if (svm_msg_q_timedwait (mq, wait_for_time / 1e3))
2942 svm_msg_q_unlock (mq);
2947 ASSERT (maxevents > *num_ev);
2948 vcl_mq_dequeue_batch (wrk, mq, ~0);
2949 svm_msg_q_unlock (mq);
2952 for (i = 0; i < vec_len (wrk->mq_msg_vector); i++)
2954 msg = vec_elt_at_index (wrk->mq_msg_vector, i);
2955 e = svm_msg_q_msg_data (mq, msg);
2956 if (*num_ev < maxevents)
2957 vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev);
2959 vcl_handle_mq_event (wrk, e);
2960 svm_msg_q_free_msg (mq, msg);
2962 vec_reset_length (wrk->mq_msg_vector);
2963 vcl_handle_pending_wrk_updates (wrk);
2968 vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events,
2969 int maxevents, u32 n_evts, double wait_for_time)
2971 double wait = 0, start = 0, now;
2975 wait = wait_for_time;
2976 start = clib_time_now (&wrk->clib_time);
2981 vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents,
2988 now = clib_time_now (&wrk->clib_time);
2989 wait -= (now - start) * 1e3;
2998 vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events,
2999 int maxevents, u32 n_evts, double wait_for_time)
3001 vcl_mq_evt_conn_t *mqc;
3002 int __clib_unused n_read;
3006 vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns));
3008 n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events,
3009 vec_len (wrk->mq_events), wait_for_time);
3010 for (i = 0; i < n_mq_evts; i++)
3012 mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32);
3013 n_read = read (mqc->mq_fd, &buf, sizeof (buf));
3014 vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts);
3016 if (!n_evts && n_mq_evts > 0)
3019 return (int) n_evts;
3023 vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events,
3024 int maxevents, double wait_for_time)
3026 vcl_worker_t *wrk = vcl_worker_get_current ();
3027 vcl_session_t *vep_session;
3031 if (PREDICT_FALSE (maxevents <= 0))
3033 VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents);
3034 return VPPCOM_EINVAL;
3037 vep_session = vcl_session_get_w_handle (wrk, vep_handle);
3039 return VPPCOM_EBADFD;
3041 if (PREDICT_FALSE (!vep_session->is_vep))
3043 VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle);
3044 return VPPCOM_EINVAL;
3047 memset (events, 0, sizeof (*events) * maxevents);
3049 if (vec_len (wrk->unhandled_evts_vector))
3051 for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++)
3053 vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i],
3055 if (n_evts == maxevents)
3057 vec_delete (wrk->unhandled_evts_vector, i + 1, 0);
3061 vec_reset_length (wrk->unhandled_evts_vector);
3064 if (vcm->cfg.use_mq_eventfd)
3065 return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts,
3068 return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts,
3073 vppcom_session_attr (uint32_t session_handle, uint32_t op,
3074 void *buffer, uint32_t * buflen)
3076 vcl_worker_t *wrk = vcl_worker_get_current ();
3077 vcl_session_t *session;
3079 u32 *flags = buffer, tmp_flags = 0;
3080 vppcom_endpt_t *ep = buffer;
3082 session = vcl_session_get_w_handle (wrk, session_handle);
3084 return VPPCOM_EBADFD;
3088 case VPPCOM_ATTR_GET_NREAD:
3089 rv = vcl_session_read_ready (session);
3090 VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle,
3094 case VPPCOM_ATTR_GET_NWRITE:
3095 rv = vcl_session_write_ready (session);
3096 VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle,
3100 case VPPCOM_ATTR_GET_FLAGS:
3101 if (PREDICT_TRUE (buffer && buflen && (*buflen >= sizeof (*flags))))
3105 (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK) ?
3107 *buflen = sizeof (*flags);
3108 VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, "
3109 "is_nonblocking = %u", session_handle, *flags,
3110 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3116 case VPPCOM_ATTR_SET_FLAGS:
3117 if (PREDICT_TRUE (buffer && buflen && (*buflen == sizeof (*flags))))
3119 if (*flags & O_NONBLOCK)
3120 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK);
3122 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK);
3124 VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x,"
3125 " is_nonblocking = %u", session_handle, *flags,
3126 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK));
3132 case VPPCOM_ATTR_GET_PEER_ADDR:
3133 if (PREDICT_TRUE (buffer && buflen &&
3134 (*buflen >= sizeof (*ep)) && ep->ip))
3136 ep->is_ip4 = session->transport.is_ip4;
3137 ep->port = session->transport.rmt_port;
3138 if (session->transport.is_ip4)
3139 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3140 sizeof (ip4_address_t));
3142 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3143 sizeof (ip6_address_t));
3144 *buflen = sizeof (*ep);
3145 VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, "
3146 "addr = %U, port %u", session_handle, ep->is_ip4,
3147 format_ip46_address, &session->transport.rmt_ip,
3148 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3149 clib_net_to_host_u16 (ep->port));
3155 case VPPCOM_ATTR_GET_LCL_ADDR:
3156 if (PREDICT_TRUE (buffer && buflen &&
3157 (*buflen >= sizeof (*ep)) && ep->ip))
3159 ep->is_ip4 = session->transport.is_ip4;
3160 ep->port = session->transport.lcl_port;
3161 if (session->transport.is_ip4)
3162 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4,
3163 sizeof (ip4_address_t));
3165 clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6,
3166 sizeof (ip6_address_t));
3167 *buflen = sizeof (*ep);
3168 VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3169 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3170 &session->transport.lcl_ip,
3171 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3172 clib_net_to_host_u16 (ep->port));
3178 case VPPCOM_ATTR_SET_LCL_ADDR:
3179 if (PREDICT_TRUE (buffer && buflen &&
3180 (*buflen >= sizeof (*ep)) && ep->ip))
3182 session->transport.is_ip4 = ep->is_ip4;
3183 session->transport.lcl_port = ep->port;
3184 vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep);
3185 *buflen = sizeof (*ep);
3186 VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U"
3187 " port %d", session_handle, ep->is_ip4, format_ip46_address,
3188 &session->transport.lcl_ip,
3189 ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6,
3190 clib_net_to_host_u16 (ep->port));
3196 case VPPCOM_ATTR_GET_LIBC_EPFD:
3197 rv = session->libc_epfd;
3198 VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv);
3201 case VPPCOM_ATTR_SET_LIBC_EPFD:
3202 if (PREDICT_TRUE (buffer && buflen &&
3203 (*buflen == sizeof (session->libc_epfd))))
3205 session->libc_epfd = *(int *) buffer;
3206 *buflen = sizeof (session->libc_epfd);
3208 VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d",
3209 session->libc_epfd, *buflen);
3215 case VPPCOM_ATTR_GET_PROTOCOL:
3216 if (buffer && buflen && (*buflen >= sizeof (int)))
3218 *(int *) buffer = session->session_type;
3219 *buflen = sizeof (int);
3221 VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d",
3222 *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen);
3228 case VPPCOM_ATTR_GET_LISTEN:
3229 if (buffer && buflen && (*buflen >= sizeof (int)))
3231 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3232 VCL_SESS_ATTR_LISTEN);
3233 *buflen = sizeof (int);
3235 VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer,
3242 case VPPCOM_ATTR_GET_ERROR:
3243 if (buffer && buflen && (*buflen >= sizeof (int)))
3245 *(int *) buffer = 0;
3246 *buflen = sizeof (int);
3248 VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#",
3249 *(int *) buffer, *buflen);
3255 case VPPCOM_ATTR_GET_TX_FIFO_LEN:
3256 if (buffer && buflen && (*buflen >= sizeof (u32)))
3260 *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size :
3262 svm_fifo_size (session->tx_fifo) :
3263 vcm->cfg.tx_fifo_size);
3264 *buflen = sizeof (u32);
3266 VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3267 " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer,
3274 case VPPCOM_ATTR_SET_TX_FIFO_LEN:
3275 if (buffer && buflen && (*buflen == sizeof (u32)))
3278 session->sndbuf_size = *(u32 *) buffer;
3279 VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d,"
3280 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3287 case VPPCOM_ATTR_GET_RX_FIFO_LEN:
3288 if (buffer && buflen && (*buflen >= sizeof (u32)))
3292 *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size :
3294 svm_fifo_size (session->rx_fifo) :
3295 vcm->cfg.rx_fifo_size);
3296 *buflen = sizeof (u32);
3298 VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, "
3299 "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen);
3305 case VPPCOM_ATTR_SET_RX_FIFO_LEN:
3306 if (buffer && buflen && (*buflen == sizeof (u32)))
3309 session->rcvbuf_size = *(u32 *) buffer;
3310 VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d,"
3311 " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size,
3318 case VPPCOM_ATTR_GET_REUSEADDR:
3319 if (buffer && buflen && (*buflen >= sizeof (int)))
3322 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3323 VCL_SESS_ATTR_REUSEADDR);
3324 *buflen = sizeof (int);
3326 VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3327 *(int *) buffer, *buflen);
3333 case VPPCOM_ATTR_SET_REUSEADDR:
3334 if (buffer && buflen && (*buflen == sizeof (int)) &&
3335 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3338 if (*(int *) buffer)
3339 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEADDR);
3341 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR);
3343 VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#",
3344 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR),
3351 case VPPCOM_ATTR_GET_REUSEPORT:
3352 if (buffer && buflen && (*buflen >= sizeof (int)))
3355 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3356 VCL_SESS_ATTR_REUSEPORT);
3357 *buflen = sizeof (int);
3359 VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3360 *(int *) buffer, *buflen);
3366 case VPPCOM_ATTR_SET_REUSEPORT:
3367 if (buffer && buflen && (*buflen == sizeof (int)) &&
3368 !VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_LISTEN))
3371 if (*(int *) buffer)
3372 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_REUSEPORT);
3374 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT);
3376 VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#",
3377 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT),
3384 case VPPCOM_ATTR_GET_BROADCAST:
3385 if (buffer && buflen && (*buflen >= sizeof (int)))
3388 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3389 VCL_SESS_ATTR_BROADCAST);
3390 *buflen = sizeof (int);
3392 VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3393 *(int *) buffer, *buflen);
3399 case VPPCOM_ATTR_SET_BROADCAST:
3400 if (buffer && buflen && (*buflen == sizeof (int)))
3403 if (*(int *) buffer)
3404 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_BROADCAST);
3406 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST);
3408 VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#",
3409 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST),
3416 case VPPCOM_ATTR_GET_V6ONLY:
3417 if (buffer && buflen && (*buflen >= sizeof (int)))
3420 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3421 VCL_SESS_ATTR_V6ONLY);
3422 *buflen = sizeof (int);
3424 VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3425 *(int *) buffer, *buflen);
3431 case VPPCOM_ATTR_SET_V6ONLY:
3432 if (buffer && buflen && (*buflen == sizeof (int)))
3435 if (*(int *) buffer)
3436 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_V6ONLY);
3438 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY);
3440 VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#",
3441 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY),
3448 case VPPCOM_ATTR_GET_KEEPALIVE:
3449 if (buffer && buflen && (*buflen >= sizeof (int)))
3452 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3453 VCL_SESS_ATTR_KEEPALIVE);
3454 *buflen = sizeof (int);
3456 VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3457 *(int *) buffer, *buflen);
3463 case VPPCOM_ATTR_SET_KEEPALIVE:
3464 if (buffer && buflen && (*buflen == sizeof (int)))
3467 if (*(int *) buffer)
3468 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3470 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE);
3472 VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#",
3473 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE),
3480 case VPPCOM_ATTR_GET_TCP_NODELAY:
3481 if (buffer && buflen && (*buflen >= sizeof (int)))
3484 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3485 VCL_SESS_ATTR_TCP_NODELAY);
3486 *buflen = sizeof (int);
3488 VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3489 *(int *) buffer, *buflen);
3495 case VPPCOM_ATTR_SET_TCP_NODELAY:
3496 if (buffer && buflen && (*buflen == sizeof (int)))
3499 if (*(int *) buffer)
3500 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3502 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY);
3504 VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#",
3505 VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY),
3512 case VPPCOM_ATTR_GET_TCP_KEEPIDLE:
3513 if (buffer && buflen && (*buflen >= sizeof (int)))
3516 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3517 VCL_SESS_ATTR_TCP_KEEPIDLE);
3518 *buflen = sizeof (int);
3520 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3521 *(int *) buffer, *buflen);
3527 case VPPCOM_ATTR_SET_TCP_KEEPIDLE:
3528 if (buffer && buflen && (*buflen == sizeof (int)))
3531 if (*(int *) buffer)
3532 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3534 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE);
3536 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#",
3537 VCL_SESS_ATTR_TEST (session->attr,
3538 VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen);
3544 case VPPCOM_ATTR_GET_TCP_KEEPINTVL:
3545 if (buffer && buflen && (*buflen >= sizeof (int)))
3548 *(int *) buffer = VCL_SESS_ATTR_TEST (session->attr,
3549 VCL_SESS_ATTR_TCP_KEEPINTVL);
3550 *buflen = sizeof (int);
3552 VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3553 *(int *) buffer, *buflen);
3559 case VPPCOM_ATTR_SET_TCP_KEEPINTVL:
3560 if (buffer && buflen && (*buflen == sizeof (int)))
3563 if (*(int *) buffer)
3564 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3566 VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL);
3568 VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#",
3569 VCL_SESS_ATTR_TEST (session->attr,
3570 VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen);
3576 case VPPCOM_ATTR_GET_TCP_USER_MSS:
3577 if (buffer && buflen && (*buflen >= sizeof (u32)))
3580 *(u32 *) buffer = session->user_mss;
3581 *buflen = sizeof (int);
3583 VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#",
3584 *(int *) buffer, *buflen);
3590 case VPPCOM_ATTR_SET_TCP_USER_MSS:
3591 if (buffer && buflen && (*buflen == sizeof (u32)))
3594 session->user_mss = *(u32 *) buffer;
3596 VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#",
3597 session->user_mss, *buflen);
3603 case VPPCOM_ATTR_SET_SHUT:
3604 if (*flags == SHUT_RD || *flags == SHUT_RDWR)
3605 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD);
3606 if (*flags == SHUT_WR || *flags == SHUT_RDWR)
3607 VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR);
3610 case VPPCOM_ATTR_GET_SHUT:
3611 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD))
3613 if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR))
3616 *(int *) buffer = SHUT_RD;
3617 else if (tmp_flags == 2)
3618 *(int *) buffer = SHUT_WR;
3619 else if (tmp_flags == 3)
3620 *(int *) buffer = SHUT_RDWR;
3621 *buflen = sizeof (int);
3624 case VPPCOM_ATTR_SET_CONNECTED:
3625 session->flags |= VCL_SESSION_F_CONNECTED;
3637 vppcom_session_recvfrom (uint32_t session_handle, void *buffer,
3638 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3640 vcl_worker_t *wrk = vcl_worker_get_current ();
3641 vcl_session_t *session;
3645 rv = vppcom_session_read (session_handle, buffer, buflen);
3646 else if (flags & MSG_PEEK)
3647 rv = vppcom_session_peek (session_handle, buffer, buflen);
3650 VDBG (0, "Unsupport flags for recvfrom %d", flags);
3651 return VPPCOM_EAFNOSUPPORT;
3656 session = vcl_session_get_w_handle (wrk, session_handle);
3657 if (session->transport.is_ip4)
3658 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4,
3659 sizeof (ip4_address_t));
3661 clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6,
3662 sizeof (ip6_address_t));
3663 ep->is_ip4 = session->transport.is_ip4;
3664 ep->port = session->transport.rmt_port;
3671 vppcom_session_sendto (uint32_t session_handle, void *buffer,
3672 uint32_t buflen, int flags, vppcom_endpt_t * ep)
3674 vcl_worker_t *wrk = vcl_worker_get_current ();
3677 s = vcl_session_get_w_handle (wrk, session_handle);
3679 return VPPCOM_EBADFD;
3682 return VPPCOM_EINVAL;
3686 if (s->session_type != VPPCOM_PROTO_UDP
3687 || (s->flags & VCL_SESSION_F_CONNECTED))
3688 return VPPCOM_EINVAL;
3690 /* Session not connected/bound in vpp. Create it by 'connecting' it */
3691 if (PREDICT_FALSE (s->session_state == VCL_STATE_CLOSED))
3693 vcl_send_session_connect (wrk, s);
3697 s->transport.is_ip4 = ep->is_ip4;
3698 s->transport.rmt_port = ep->port;
3699 vcl_ip_copy_from_ep (&s->transport.rmt_ip, ep);
3705 // TBD check the flags and do the right thing
3706 VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags);
3709 return (vppcom_session_write_inline (wrk, s, buffer, buflen, 1,
3710 s->is_dgram ? 1 : 0));
3714 vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time)
3716 vcl_worker_t *wrk = vcl_worker_get_current ();
3717 f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time;
3718 u32 i, keep_trying = 1;
3719 svm_msg_q_msg_t msg;
3723 VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time);
3726 return VPPCOM_EFAULT;
3730 vcl_session_t *session;
3732 /* Dequeue all events and drop all unhandled io events */
3733 while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0)
3735 e = svm_msg_q_msg_data (wrk->app_event_queue, &msg);
3736 vcl_handle_mq_event (wrk, e);
3737 svm_msg_q_free_msg (wrk->app_event_queue, &msg);
3739 vec_reset_length (wrk->unhandled_evts_vector);
3741 for (i = 0; i < n_sids; i++)
3743 session = vcl_session_get (wrk, vp[i].sh);
3746 vp[i].revents = POLLHUP;
3753 if (POLLIN & vp[i].events)
3755 rv = vcl_session_read_ready (session);
3758 vp[i].revents |= POLLIN;
3765 case VPPCOM_ECONNRESET:
3766 vp[i].revents = POLLHUP;
3770 vp[i].revents = POLLERR;
3777 if (POLLOUT & vp[i].events)
3779 rv = vcl_session_write_ready (session);
3782 vp[i].revents |= POLLOUT;
3789 case VPPCOM_ECONNRESET:
3790 vp[i].revents = POLLHUP;
3794 vp[i].revents = POLLERR;
3801 if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET()
3803 vp[i].revents = POLLNVAL;
3807 if (wait_for_time != -1)
3808 keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0;
3810 while ((num_ev == 0) && keep_trying);
3816 vppcom_mq_epoll_fd (void)
3818 vcl_worker_t *wrk = vcl_worker_get_current ();
3819 return wrk->mqs_epfd;
3823 vppcom_session_index (vcl_session_handle_t session_handle)
3825 return session_handle & 0xFFFFFF;
3829 vppcom_session_worker (vcl_session_handle_t session_handle)
3831 return session_handle >> 24;
3835 vppcom_worker_register (void)
3837 if (!vcl_worker_alloc_and_init ())
3838 return VPPCOM_EEXIST;
3840 if (vcl_worker_register_with_vpp ())
3841 return VPPCOM_EEXIST;
3847 vppcom_worker_unregister (void)
3849 vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ );
3850 vcl_set_worker_index (~0);
3854 vppcom_worker_index_set (int index)
3856 vcl_set_worker_index (index);
3860 vppcom_worker_index (void)
3862 return vcl_get_worker_index ();
3866 vppcom_worker_mqs_epfd (void)
3868 vcl_worker_t *wrk = vcl_worker_get_current ();
3869 if (!vcm->cfg.use_mq_eventfd)
3871 return wrk->mqs_epfd;
3875 vppcom_session_is_connectable_listener (uint32_t session_handle)
3877 vcl_session_t *session;
3878 vcl_worker_t *wrk = vcl_worker_get_current ();
3879 session = vcl_session_get_w_handle (wrk, session_handle);
3881 return VPPCOM_EBADFD;
3882 return vcl_session_is_connectable_listener (wrk, session);
3886 vppcom_session_listener (uint32_t session_handle)
3888 vcl_worker_t *wrk = vcl_worker_get_current ();
3889 vcl_session_t *listen_session, *session;
3890 session = vcl_session_get_w_handle (wrk, session_handle);
3892 return VPPCOM_EBADFD;
3893 if (session->listener_index == VCL_INVALID_SESSION_INDEX)
3894 return VPPCOM_EBADFD;
3895 listen_session = vcl_session_get_w_handle (wrk, session->listener_index);
3896 if (!listen_session)
3897 return VPPCOM_EBADFD;
3898 return vcl_session_handle (listen_session);
3902 vppcom_session_n_accepted (uint32_t session_handle)
3904 vcl_worker_t *wrk = vcl_worker_get_current ();
3905 vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle);
3907 return VPPCOM_EBADFD;
3908 return session->n_accepted_sessions;
3912 vppcom_proto_str (vppcom_proto_t proto)
3914 char const *proto_str;
3918 case VPPCOM_PROTO_TCP:
3921 case VPPCOM_PROTO_UDP:
3924 case VPPCOM_PROTO_TLS:
3927 case VPPCOM_PROTO_QUIC:
3931 proto_str = "UNKNOWN";
3938 vppcom_retval_str (int retval)
3949 st = "VPPCOM_EAGAIN";
3953 st = "VPPCOM_EFAULT";
3957 st = "VPPCOM_ENOMEM";
3961 st = "VPPCOM_EINVAL";
3965 st = "VPPCOM_EBADFD";
3968 case VPPCOM_EAFNOSUPPORT:
3969 st = "VPPCOM_EAFNOSUPPORT";
3972 case VPPCOM_ECONNABORTED:
3973 st = "VPPCOM_ECONNABORTED";
3976 case VPPCOM_ECONNRESET:
3977 st = "VPPCOM_ECONNRESET";
3980 case VPPCOM_ENOTCONN:
3981 st = "VPPCOM_ENOTCONN";
3984 case VPPCOM_ECONNREFUSED:
3985 st = "VPPCOM_ECONNREFUSED";
3988 case VPPCOM_ETIMEDOUT:
3989 st = "VPPCOM_ETIMEDOUT";
3993 st = "UNKNOWN_STATE";
4001 * fd.io coding-style-patch-verification: ON
4004 * eval: (c-set-style "gnu")