2 This file is part of GNUnet.
3 (C) 2009, 2010 Christian Grothoff (and other contributing authors)
5 GNUnet is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published
7 by the Free Software Foundation; either version 3, or (at your
8 option) any later version.
10 GNUnet is distributed in the hope that it will be useful, but
11 WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
15 You should have received a copy of the GNU General Public License
16 along with GNUnet; see the file COPYING. If not, write to the
17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
18 Boston, MA 02111-1307, USA.
22 * @file transport/transport_api_monitoring.c
23 * @brief montoring api for transport peer status and validation entries
25 * This api provides the ability to query the transport service about
26 * the status of a specific or all peers as well as address validation entries.
28 * Calls back with information about peer(s) including address used, state and
29 * state timeout for peer requests and address, address lifetime and next revalidation
30 * for validation entries.
33 #include "gnunet_util_lib.h"
34 #include "gnunet_arm_service.h"
35 #include "gnunet_hello_lib.h"
36 #include "gnunet_protocols.h"
37 #include "gnunet_transport_service.h"
38 #include "transport.h"
41 * Context for iterating validation entries.
43 struct GNUNET_TRANSPORT_PeerMonitoringContext
46 * Function to call with the binary address.
48 GNUNET_TRANSPORT_PeerIterateCallback cb;
56 * Connection to the service.
58 struct GNUNET_CLIENT_Connection *client;
61 * Configuration we use.
63 const struct GNUNET_CONFIGURATION_Handle *cfg;
66 * When should this operation time out?
68 struct GNUNET_TIME_Absolute timeout;
71 * Backoff for reconnect.
73 struct GNUNET_TIME_Relative backoff;
76 * Task ID for reconnect.
78 GNUNET_SCHEDULER_TaskIdentifier reconnect_task;
81 * Identity of the peer to monitor.
83 struct GNUNET_PeerIdentity peer;
86 * Was this a one-shot request?
93 * Context for the address lookup.
95 struct GNUNET_TRANSPORT_ValidationMonitoringContext
98 * Function to call with the binary address.
100 GNUNET_TRANSPORT_ValidationIterateCallback cb;
108 * Connection to the service.
110 struct GNUNET_CLIENT_Connection *client;
113 * Configuration we use.
115 const struct GNUNET_CONFIGURATION_Handle *cfg;
118 * When should this operation time out?
120 struct GNUNET_TIME_Absolute timeout;
123 * Backoff for reconnect.
125 struct GNUNET_TIME_Relative backoff;
128 * Task ID for reconnect.
130 GNUNET_SCHEDULER_TaskIdentifier reconnect_task;
133 * Identity of the peer to monitor.
135 struct GNUNET_PeerIdentity peer;
138 * Was this a one-shot request?
144 * Check if a state is defined as connected
146 * @param state the state value
147 * @return GNUNET_YES or GNUNET_NO
150 GNUNET_TRANSPORT_is_connected (enum GNUNET_TRANSPORT_PeerState state)
154 case GNUNET_TRANSPORT_PS_NOT_CONNECTED:
155 case GNUNET_TRANSPORT_PS_INIT_ATS:
156 case GNUNET_TRANSPORT_PS_CONNECT_SENT:
157 case GNUNET_TRANSPORT_PS_CONNECT_RECV_ATS:
158 case GNUNET_TRANSPORT_PS_CONNECT_RECV_ACK:
160 case GNUNET_TRANSPORT_PS_CONNECTED:
161 case GNUNET_TRANSPORT_PS_RECONNECT_ATS:
162 case GNUNET_TRANSPORT_PS_RECONNECT_SENT:
163 case GNUNET_TRANSPORT_PS_CONNECTED_SWITCHING_CONNECT_SENT:
165 case GNUNET_TRANSPORT_PS_DISCONNECT:
166 case GNUNET_TRANSPORT_PS_DISCONNECT_FINISHED:
169 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
170 "Unhandled state `%s' \n",
171 GNUNET_TRANSPORT_ps2s (state));
175 return GNUNET_SYSERR;
179 * Convert peer state to human-readable string.
181 * @param state the state value
182 * @return corresponding string
185 GNUNET_TRANSPORT_ps2s (enum GNUNET_TRANSPORT_PeerState state)
189 case GNUNET_TRANSPORT_PS_NOT_CONNECTED:
190 return "S_NOT_CONNECTED";
191 case GNUNET_TRANSPORT_PS_INIT_ATS:
193 case GNUNET_TRANSPORT_PS_CONNECT_SENT:
194 return "S_CONNECT_SENT";
195 case GNUNET_TRANSPORT_PS_CONNECT_RECV_ATS:
196 return "S_CONNECT_RECV_ATS";
197 case GNUNET_TRANSPORT_PS_CONNECT_RECV_ACK:
198 return "S_CONNECT_RECV_ACK";
199 case GNUNET_TRANSPORT_PS_CONNECTED:
200 return "S_CONNECTED";
201 case GNUNET_TRANSPORT_PS_RECONNECT_ATS:
202 return "S_RECONNECT_ATS";
203 case GNUNET_TRANSPORT_PS_RECONNECT_SENT:
204 return "S_RECONNECT_SENT";
205 case GNUNET_TRANSPORT_PS_CONNECTED_SWITCHING_CONNECT_SENT:
206 return "S_CONNECTED_SWITCHING_CONNECT_SENT";
207 case GNUNET_TRANSPORT_PS_DISCONNECT:
208 return "S_DISCONNECT";
209 case GNUNET_TRANSPORT_PS_DISCONNECT_FINISHED:
210 return "S_DISCONNECT_FINISHED";
218 * Convert validation state to human-readable string.
220 * @param state the state value
221 * @return corresponding string
224 GNUNET_TRANSPORT_vs2s (enum GNUNET_TRANSPORT_ValidationState state)
228 case GNUNET_TRANSPORT_VS_NONE:
230 case GNUNET_TRANSPORT_VS_NEW:
232 case GNUNET_TRANSPORT_VS_REMOVE:
234 case GNUNET_TRANSPORT_VS_TIMEOUT:
236 case GNUNET_TRANSPORT_VS_UPDATE:
246 * Function called with responses from the service.
248 * @param cls our 'struct GNUNET_TRANSPORT_PeerAddressLookupContext*'
249 * @param msg NULL on timeout or error, otherwise presumably a
250 * message with the human-readable address
253 peer_response_processor (void *cls, const struct GNUNET_MessageHeader *msg);
257 * Function called with responses from the service.
259 * @param cls our 'struct GNUNET_TRANSPORT_PeerAddressLookupContext*'
260 * @param msg NULL on timeout or error, otherwise presumably a
261 * message with the human-readable address
264 val_response_processor (void *cls, const struct GNUNET_MessageHeader *msg);
267 * Send our subscription request to the service.
269 * @param pal_ctx our context
272 send_peer_mon_request (struct GNUNET_TRANSPORT_PeerMonitoringContext *pal_ctx)
274 struct PeerMonitorMessage msg;
276 msg.header.size = htons (sizeof (struct PeerMonitorMessage));
277 msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_PEER_REQUEST);
278 msg.one_shot = htonl (pal_ctx->one_shot);
279 msg.peer = pal_ctx->peer;
280 GNUNET_assert (GNUNET_OK ==
281 GNUNET_CLIENT_transmit_and_get_response (pal_ctx->client,
283 GNUNET_TIME_absolute_get_remaining (pal_ctx->timeout),
285 &peer_response_processor,
290 * Send our subscription request to the service.
292 * @param val_ctx our context
295 send_val_mon_request (struct GNUNET_TRANSPORT_ValidationMonitoringContext *val_ctx)
297 struct ValidationMonitorMessage msg;
299 msg.header.size = htons (sizeof (struct ValidationMonitorMessage));
300 msg.header.type = htons (GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_VALIDATION_REQUEST);
301 msg.one_shot = htonl (val_ctx->one_shot);
302 msg.peer = val_ctx->peer;
303 GNUNET_assert (GNUNET_OK ==
304 GNUNET_CLIENT_transmit_and_get_response (val_ctx->client,
306 GNUNET_TIME_absolute_get_remaining (val_ctx->timeout),
308 &val_response_processor,
313 * Task run to re-establish the connection.
315 * @param cls our 'struct GNUNET_TRANSPORT_PeerAddressLookupContext*'
316 * @param tc scheduler context, unused
319 do_peer_connect (void *cls,
320 const struct GNUNET_SCHEDULER_TaskContext *tc)
322 struct GNUNET_TRANSPORT_PeerMonitoringContext *pal_ctx = cls;
324 pal_ctx->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
325 pal_ctx->client = GNUNET_CLIENT_connect ("transport", pal_ctx->cfg);
326 GNUNET_assert (NULL != pal_ctx->client);
327 send_peer_mon_request (pal_ctx);
332 * Cut the existing connection and reconnect.
334 * @param pal_ctx our context
337 reconnect_peer_ctx (struct GNUNET_TRANSPORT_PeerMonitoringContext *pal_ctx)
339 GNUNET_assert (GNUNET_NO == pal_ctx->one_shot);
340 GNUNET_CLIENT_disconnect (pal_ctx->client);
341 pal_ctx->client = NULL;
342 pal_ctx->backoff = GNUNET_TIME_STD_BACKOFF (pal_ctx->backoff);
343 pal_ctx->reconnect_task = GNUNET_SCHEDULER_add_delayed (pal_ctx->backoff,
350 * Task run to re-establish the connection.
352 * @param cls our 'struct GNUNET_TRANSPORT_PeerAddressLookupContext*'
353 * @param tc scheduler context, unused
356 do_val_connect (void *cls,
357 const struct GNUNET_SCHEDULER_TaskContext *tc)
359 struct GNUNET_TRANSPORT_ValidationMonitoringContext *val_ctx = cls;
361 val_ctx->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
362 val_ctx->client = GNUNET_CLIENT_connect ("transport", val_ctx->cfg);
363 GNUNET_assert (NULL != val_ctx->client);
364 send_val_mon_request (val_ctx);
368 * Cut the existing connection and reconnect.
370 * @param val_ctx our context
373 reconnect_val_ctx (struct GNUNET_TRANSPORT_ValidationMonitoringContext *val_ctx)
375 GNUNET_assert (GNUNET_NO == val_ctx->one_shot);
376 GNUNET_CLIENT_disconnect (val_ctx->client);
377 val_ctx->client = NULL;
378 val_ctx->backoff = GNUNET_TIME_STD_BACKOFF (val_ctx->backoff);
379 val_ctx->reconnect_task = GNUNET_SCHEDULER_add_delayed (val_ctx->backoff,
385 * Function called with responses from the service.
387 * @param cls our 'struct GNUNET_TRANSPORT_PeerMonitoringContext*'
388 * @param msg NULL on timeout or error, otherwise presumably a
389 * message with the human-readable address
392 val_response_processor (void *cls, const struct GNUNET_MessageHeader *msg)
394 struct GNUNET_TRANSPORT_ValidationMonitoringContext *val_ctx = cls;
395 struct ValidationIterateResponseMessage *vr_msg;
396 struct GNUNET_HELLO_Address *address;
398 const char *transport_name;
405 if (val_ctx->one_shot)
408 val_ctx->cb (val_ctx->cb_cls, NULL, NULL,
409 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TIME_UNIT_ZERO_ABS,
410 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TRANSPORT_VS_TIMEOUT);
411 GNUNET_TRANSPORT_monitor_validation_entries_cancel (val_ctx);
415 reconnect_val_ctx (val_ctx);
419 size = ntohs (msg->size);
420 GNUNET_break (ntohs (msg->type) ==
421 GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_VALIDATION_RESPONSE);
423 if (size == sizeof (struct GNUNET_MessageHeader))
426 if (val_ctx->one_shot)
428 val_ctx->cb (val_ctx->cb_cls, NULL, NULL,
429 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TIME_UNIT_ZERO_ABS,
430 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TRANSPORT_VS_NONE);
431 GNUNET_TRANSPORT_monitor_validation_entries_cancel (val_ctx);
435 reconnect_val_ctx (val_ctx);
440 if ((size < sizeof (struct ValidationIterateResponseMessage)) ||
441 (ntohs (msg->type) != GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_VALIDATION_RESPONSE))
444 if (val_ctx->one_shot)
446 val_ctx->cb (val_ctx->cb_cls, NULL, NULL,
447 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TIME_UNIT_ZERO_ABS,
448 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TRANSPORT_VS_NONE);
449 GNUNET_TRANSPORT_monitor_validation_entries_cancel (val_ctx);
453 reconnect_val_ctx (val_ctx);
458 vr_msg = (struct ValidationIterateResponseMessage *) msg;
459 tlen = ntohl (vr_msg->pluginlen);
460 alen = ntohl (vr_msg->addrlen);
462 if (size != sizeof (struct ValidationIterateResponseMessage) + tlen + alen)
465 if (val_ctx->one_shot)
467 val_ctx->cb (val_ctx->cb_cls, NULL, NULL,
468 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TIME_UNIT_ZERO_ABS,
469 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TRANSPORT_VS_NONE);
470 GNUNET_TRANSPORT_monitor_validation_entries_cancel (val_ctx);
474 reconnect_val_ctx (val_ctx);
478 if ( (0 == tlen) && (0 == alen) )
481 if (val_ctx->one_shot)
483 val_ctx->cb (val_ctx->cb_cls, NULL, NULL,
484 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TIME_UNIT_ZERO_ABS,
485 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TRANSPORT_VS_NONE);
486 GNUNET_TRANSPORT_monitor_validation_entries_cancel (val_ctx);
490 reconnect_val_ctx (val_ctx);
498 GNUNET_break (0); /* This must not happen: address without plugin */
501 addr = (const char *) &vr_msg[1];
502 transport_name = &addr[alen];
504 if (transport_name[tlen - 1] != '\0')
506 /* Corrupt plugin name */
508 if (val_ctx->one_shot)
510 val_ctx->cb (val_ctx->cb_cls, NULL, NULL,
511 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TIME_UNIT_ZERO_ABS,
512 GNUNET_TIME_UNIT_ZERO_ABS, GNUNET_TRANSPORT_VS_NONE);
513 GNUNET_TRANSPORT_monitor_validation_entries_cancel (val_ctx);
517 reconnect_val_ctx (val_ctx);
523 address = GNUNET_HELLO_address_allocate (&vr_msg->peer,
524 transport_name, addr, alen, ntohl(vr_msg->local_address_info));
525 val_ctx->cb (val_ctx->cb_cls, &vr_msg->peer, address,
526 GNUNET_TIME_absolute_ntoh(vr_msg->last_validation),
527 GNUNET_TIME_absolute_ntoh(vr_msg->valid_until),
528 GNUNET_TIME_absolute_ntoh(vr_msg->next_validation),
529 ntohl(vr_msg->state));
530 GNUNET_HELLO_address_free (address);
532 /* expect more replies */
533 GNUNET_CLIENT_receive (val_ctx->client, &val_response_processor,
534 val_ctx, GNUNET_TIME_absolute_get_remaining (val_ctx->timeout));
539 * Function called with responses from the service.
541 * @param cls our 'struct GNUNET_TRANSPORT_PeerMonitoringContext*'
542 * @param msg NULL on timeout or error, otherwise presumably a
543 * message with the human-readable address
546 peer_response_processor (void *cls, const struct GNUNET_MessageHeader *msg)
548 struct GNUNET_TRANSPORT_PeerMonitoringContext *pal_ctx = cls;
549 struct PeerIterateResponseMessage *pir_msg;
550 struct GNUNET_HELLO_Address *address;
552 const char *transport_name;
559 if (pal_ctx->one_shot)
562 pal_ctx->cb (pal_ctx->cb_cls, NULL, NULL,
563 GNUNET_TRANSPORT_PS_NOT_CONNECTED, GNUNET_TIME_UNIT_ZERO_ABS);
564 GNUNET_TRANSPORT_monitor_peers_cancel (pal_ctx);
568 reconnect_peer_ctx (pal_ctx);
572 size = ntohs (msg->size);
573 GNUNET_break (ntohs (msg->type) ==
574 GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_PEER_RESPONSE);
575 if (size == sizeof (struct GNUNET_MessageHeader))
578 if (pal_ctx->one_shot)
580 pal_ctx->cb (pal_ctx->cb_cls, NULL, NULL,
581 GNUNET_TRANSPORT_PS_NOT_CONNECTED, GNUNET_TIME_UNIT_ZERO_ABS);
582 GNUNET_TRANSPORT_monitor_peers_cancel (pal_ctx);
586 reconnect_peer_ctx (pal_ctx);
591 if ((size < sizeof (struct PeerIterateResponseMessage)) ||
592 (ntohs (msg->type) != GNUNET_MESSAGE_TYPE_TRANSPORT_MONITOR_PEER_RESPONSE))
595 if (pal_ctx->one_shot)
597 pal_ctx->cb (pal_ctx->cb_cls, NULL, NULL,
598 GNUNET_TRANSPORT_PS_NOT_CONNECTED, GNUNET_TIME_UNIT_ZERO_ABS);
599 GNUNET_TRANSPORT_monitor_peers_cancel (pal_ctx);
603 reconnect_peer_ctx (pal_ctx);
608 pir_msg = (struct PeerIterateResponseMessage *) msg;
609 tlen = ntohl (pir_msg->pluginlen);
610 alen = ntohl (pir_msg->addrlen);
612 if (size != sizeof (struct PeerIterateResponseMessage) + tlen + alen)
615 if (pal_ctx->one_shot)
617 pal_ctx->cb (pal_ctx->cb_cls, NULL, NULL,
618 GNUNET_TRANSPORT_PS_NOT_CONNECTED, GNUNET_TIME_UNIT_ZERO_ABS);
619 GNUNET_TRANSPORT_monitor_peers_cancel (pal_ctx);
623 reconnect_peer_ctx (pal_ctx);
628 if ( (0 == tlen) && (0 == alen) )
630 /* No address available */
631 pal_ctx->cb (pal_ctx->cb_cls, &pir_msg->peer, NULL,
632 ntohl(pir_msg->state),
633 GNUNET_TIME_absolute_ntoh (pir_msg->state_timeout));
639 GNUNET_break (0); /* This must not happen: address without plugin */
642 addr = (const char *) &pir_msg[1];
643 transport_name = &addr[alen];
645 if (transport_name[tlen - 1] != '\0')
647 /* Corrupt plugin name */
649 if (pal_ctx->one_shot)
651 pal_ctx->cb (pal_ctx->cb_cls, NULL, NULL,
652 GNUNET_TRANSPORT_PS_NOT_CONNECTED, GNUNET_TIME_UNIT_ZERO_ABS);
653 GNUNET_TRANSPORT_monitor_peers_cancel (pal_ctx);
657 reconnect_peer_ctx (pal_ctx);
663 address = GNUNET_HELLO_address_allocate (&pir_msg->peer,
664 transport_name, addr, alen, ntohl(pir_msg->local_address_info));
665 pal_ctx->cb (pal_ctx->cb_cls, &pir_msg->peer, address,
666 ntohl(pir_msg->state),
667 GNUNET_TIME_absolute_ntoh (pir_msg->state_timeout));
668 GNUNET_HELLO_address_free (address);
672 /* expect more replies */
673 GNUNET_CLIENT_receive (pal_ctx->client, &peer_response_processor,
675 GNUNET_TIME_absolute_get_remaining (pal_ctx->timeout));
680 * Return information about a specific peer or all peers currently known to
681 * transport service once or in monitoring mode. To obtain information about
682 * a specific peer, a peer identity can be passed. To obtain information about
683 * all peers currently known to transport service, NULL can be passed as peer
686 * For each peer, the callback is called with information about the address used
687 * to communicate with this peer, the state this peer is currently in and the
688 * the current timeout for this state.
690 * Upon completion, the 'GNUNET_TRANSPORT_PeerIterateCallback' is called one
691 * more time with 'NULL'. After this, the operation must no longer be
692 * explicitly canceled.
694 * The #GNUNET_TRANSPORT_monitor_peers_cancel call MUST not be called in the
697 * @param cfg configuration to use
698 * @param peer a specific peer identity to obtain information for,
700 * @param one_shot GNUNET_YES to return the current state and then end (with NULL+NULL),
701 * GNUNET_NO to monitor peers continuously
702 * @param timeout how long is the lookup allowed to take at most
703 * @param peer_callback function to call with the results
704 * @param peer_callback_cls closure for peer_address_callback
706 struct GNUNET_TRANSPORT_PeerMonitoringContext *
707 GNUNET_TRANSPORT_monitor_peers (const struct GNUNET_CONFIGURATION_Handle *cfg,
708 const struct GNUNET_PeerIdentity *peer,
710 struct GNUNET_TIME_Relative timeout,
711 GNUNET_TRANSPORT_PeerIterateCallback peer_callback,
712 void *peer_callback_cls)
714 struct GNUNET_TRANSPORT_PeerMonitoringContext *pal_ctx;
715 struct GNUNET_CLIENT_Connection *client;
717 client = GNUNET_CLIENT_connect ("transport", cfg);
720 if (GNUNET_YES != one_shot)
721 timeout = GNUNET_TIME_UNIT_FOREVER_REL;
722 pal_ctx = GNUNET_new (struct GNUNET_TRANSPORT_PeerMonitoringContext);
723 pal_ctx->cb = peer_callback;
724 pal_ctx->cb_cls = peer_callback_cls;
726 pal_ctx->timeout = GNUNET_TIME_relative_to_absolute (timeout);
728 pal_ctx->peer = *peer;
729 pal_ctx->one_shot = one_shot;
730 pal_ctx->client = client;
731 send_peer_mon_request (pal_ctx);
738 * Cancel request to monitor peers
740 * @param pic handle for the request to cancel
743 GNUNET_TRANSPORT_monitor_peers_cancel (struct GNUNET_TRANSPORT_PeerMonitoringContext *pic)
745 if (NULL != pic->client)
747 GNUNET_CLIENT_disconnect (pic->client);
750 if (GNUNET_SCHEDULER_NO_TASK != pic->reconnect_task)
752 GNUNET_SCHEDULER_cancel (pic->reconnect_task);
753 pic->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
760 * Return information about pending address validation operations for a specific
763 * @param cfg configuration to use
764 * @param peer a specific peer identity to obtain validation entries for,
766 * @param one_shot GNUNET_YES to return all entries and then end (with NULL+NULL),
767 * GNUNET_NO to monitor validation entries continuously
768 * @param timeout how long is the lookup allowed to take at most
769 * @param validation_callback function to call with the results
770 * @param validation_callback_cls closure for peer_address_callback
772 struct GNUNET_TRANSPORT_ValidationMonitoringContext *
773 GNUNET_TRANSPORT_monitor_validation_entries (const struct
774 GNUNET_CONFIGURATION_Handle *cfg,
775 const struct GNUNET_PeerIdentity *peer,
777 struct GNUNET_TIME_Relative timeout,
778 GNUNET_TRANSPORT_ValidationIterateCallback validation_callback,
779 void *validation_callback_cls)
781 struct GNUNET_TRANSPORT_ValidationMonitoringContext *val_ctx;
782 struct GNUNET_CLIENT_Connection *client;
784 client = GNUNET_CLIENT_connect ("transport", cfg);
787 if (GNUNET_YES != one_shot)
788 timeout = GNUNET_TIME_UNIT_FOREVER_REL;
789 val_ctx = GNUNET_new (struct GNUNET_TRANSPORT_ValidationMonitoringContext);
790 val_ctx->cb = validation_callback;
791 val_ctx->cb_cls = validation_callback_cls;
793 val_ctx->timeout = GNUNET_TIME_relative_to_absolute (timeout);
795 val_ctx->peer = *peer;
796 val_ctx->one_shot = one_shot;
797 val_ctx->client = client;
798 send_val_mon_request (val_ctx);
805 * Return information about all current pending validation operations
807 * @param vic handle for the request to cancel
810 GNUNET_TRANSPORT_monitor_validation_entries_cancel (struct GNUNET_TRANSPORT_ValidationMonitoringContext *vic)
812 if (NULL != vic->client)
814 GNUNET_CLIENT_disconnect (vic->client);
817 if (GNUNET_SCHEDULER_NO_TASK != vic->reconnect_task)
819 GNUNET_SCHEDULER_cancel (vic->reconnect_task);
820 vic->reconnect_task = GNUNET_SCHEDULER_NO_TASK;
826 /* end of transport_api_monitoring.c */