2 This file is part of GNUnet.
3 (C) 2012 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.
21 * @file dht/gnunet-dht-monitor.c
22 * @brief search for data in DHT
23 * @author Christian Grothoff
24 * @author Bartlomiej Polot
27 #include "gnunet_dht_service.h"
30 * The type of the query
32 static unsigned int block_type;
35 * The key to be monitored
37 static char *query_key;
40 * User supplied timeout value (in seconds)
42 static struct GNUNET_TIME_Relative timeout_request = { 60000 };
52 static struct GNUNET_DHT_Handle *dht_handle;
55 * Global handle of the configuration
57 static const struct GNUNET_CONFIGURATION_Handle *cfg;
60 * Handle for the get request
62 static struct GNUNET_DHT_MonitorHandle *monitor_handle;
65 * Count of messages received
67 static unsigned int result_count;
76 * Stop monitoring request and start shutdown
78 * @param cls closure (unused)
79 * @param tc Task Context
82 cleanup_task (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
85 FPRINTF (stderr, "%s", "Cleaning up!\n");
86 if (NULL != monitor_handle)
88 GNUNET_DHT_monitor_stop (monitor_handle);
89 monitor_handle = NULL;
91 if (NULL != dht_handle)
93 GNUNET_DHT_disconnect (dht_handle);
100 * Callback called on each GET request going through the DHT.
102 * @param cls Closure.
103 * @param options Options, for instance RecordRoute, DemultiplexEverywhere.
104 * @param type The type of data in the request.
105 * @param hop_count Hop count so far.
106 * @param path_length number of entries in path (or 0 if not recorded).
107 * @param path peers on the GET path (or NULL if not recorded).
108 * @param desired_replication_level Desired replication level.
109 * @param key Key of the requested data.
112 get_callback (void *cls,
113 enum GNUNET_DHT_RouteOption options,
114 enum GNUNET_BLOCK_Type type,
116 uint32_t desired_replication_level,
117 unsigned int path_length,
118 const struct GNUNET_PeerIdentity *path,
119 const struct GNUNET_HashCode * key)
121 FPRINTF (stdout, "GET #%u: type %d, key `%s'\n",
124 GNUNET_h2s_full(key));
130 * Callback called on each GET reply going through the DHT.
132 * @param cls Closure.
133 * @param type The type of data in the result.
134 * @param get_path Peers on GET path (or NULL if not recorded).
135 * @param get_path_length number of entries in get_path.
136 * @param put_path peers on the PUT path (or NULL if not recorded).
137 * @param put_path_length number of entries in get_path.
138 * @param exp Expiration time of the data.
139 * @param key Key of the data.
140 * @param data Pointer to the result data.
141 * @param size Number of bytes in data.
144 get_resp_callback (void *cls,
145 enum GNUNET_BLOCK_Type type,
146 const struct GNUNET_PeerIdentity *get_path,
147 unsigned int get_path_length,
148 const struct GNUNET_PeerIdentity *put_path,
149 unsigned int put_path_length,
150 struct GNUNET_TIME_Absolute exp,
151 const struct GNUNET_HashCode * key,
156 "RESPONSE #%u: type %d, key `%s', data `%.*s'\n",
159 GNUNET_h2s_full (key),
167 * Callback called on each PUT request going through the DHT.
169 * @param cls Closure.
170 * @param options Options, for instance RecordRoute, DemultiplexEverywhere.
171 * @param type The type of data in the request.
172 * @param hop_count Hop count so far.
173 * @param path_length number of entries in path (or 0 if not recorded).
174 * @param path peers on the PUT path (or NULL if not recorded).
175 * @param desired_replication_level Desired replication level.
176 * @param exp Expiration time of the data.
177 * @param key Key under which data is to be stored.
178 * @param data Pointer to the data carried.
179 * @param size Number of bytes in data.
182 put_callback (void *cls,
183 enum GNUNET_DHT_RouteOption options,
184 enum GNUNET_BLOCK_Type type,
186 uint32_t desired_replication_level,
187 unsigned int path_length,
188 const struct GNUNET_PeerIdentity *path,
189 struct GNUNET_TIME_Absolute exp,
190 const struct GNUNET_HashCode * key,
195 "PUT %u: type %d, key `%s', data `%.*s'\n",
198 GNUNET_h2s_full(key),
206 * Main function that will be run by the scheduler.
209 * @param args remaining command-line arguments
210 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
211 * @param c configuration
214 run (void *cls, char *const *args, const char *cfgfile,
215 const struct GNUNET_CONFIGURATION_Handle *c)
217 struct GNUNET_HashCode *key;
218 struct GNUNET_HashCode hc;
222 if (NULL == (dht_handle = GNUNET_DHT_connect (cfg, 1)))
224 FPRINTF (stderr, "%s",
225 _("Failed to connect to DHT service!\n"));
229 if (GNUNET_BLOCK_TYPE_ANY == block_type) /* Type of data not set */
230 block_type = GNUNET_BLOCK_TYPE_TEST;
231 if (NULL != query_key)
235 GNUNET_CRYPTO_hash_from_string (query_key, key))
236 GNUNET_CRYPTO_hash (query_key, strlen (query_key), key);
244 "Monitoring for %s\n",
245 GNUNET_TIME_relative_to_string (timeout_request));
246 GNUNET_SCHEDULER_add_delayed (timeout_request, &cleanup_task, NULL);
247 monitor_handle = GNUNET_DHT_monitor_start (dht_handle,
258 * gnunet-dht-monitor command line options
260 static struct GNUNET_GETOPT_CommandLineOption options[] = {
262 gettext_noop ("the query key"),
263 1, &GNUNET_GETOPT_set_string, &query_key},
264 {'t', "type", "TYPE",
265 gettext_noop ("the type of data to look for"),
266 1, &GNUNET_GETOPT_set_uint, &block_type},
267 {'T', "timeout", "TIMEOUT",
268 gettext_noop ("how long should the monitor command run"),
269 1, &GNUNET_GETOPT_set_relative_time, &timeout_request},
270 {'V', "verbose", NULL,
271 gettext_noop ("be verbose (print progress information)"),
272 0, &GNUNET_GETOPT_set_one, &verbose},
273 GNUNET_GETOPT_OPTION_END
278 * Entry point for gnunet-dht-monitor
280 * @param argc number of arguments from the command line
281 * @param argv command line arguments
282 * @return 0 ok, 1 on error
285 main (int argc, char *const *argv)
287 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
291 GNUNET_PROGRAM_run (argc, argv, "gnunet-dht-monitor",
293 ("Prints all packets that go through the DHT."),
294 options, &run, NULL)) ? ret : 1;
297 /* end of gnunet-dht-monitor.c */