2 This file is part of GNUnet.
3 (C) 2012 Christian Grothoff (and other contributing authors)
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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
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 General Public License for more details.
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21 * @file gnunet-namestore.c
22 * @brief command line tool to manipulate the local zone
23 * @author Christian Grothoff
27 * - allow users to set record options (not just 'RF_AUTHORITY')
29 * - parsing SOA, PTR and MX value specifications (and define format!)
30 * - add options to list/lookup individual records
33 #include <gnunet_util_lib.h>
34 #include <gnunet_dnsparser_lib.h>
35 #include <gnunet_namestore_service.h>
38 * Handle to the namestore.
40 static struct GNUNET_NAMESTORE_Handle *ns;
43 * Hash of the public key of our zone.
45 static GNUNET_HashCode zone;
48 * Private key for the our zone.
50 static struct GNUNET_CRYPTO_RsaPrivateKey *zone_pkey;
53 * Keyfile to manipulate.
58 * Desired action is to add a record.
63 * Queue entry for the 'add' operation.
65 static struct GNUNET_NAMESTORE_QueueEntry *add_qe;
68 * Desired action is to list records.
73 * List iterator for the 'list' operation.
75 static struct GNUNET_NAMESTORE_ZoneIterator *list_it;
78 * Desired action is to remove a record.
83 * Queue entry for the 'del' operation.
85 static struct GNUNET_NAMESTORE_QueueEntry *del_qe;
88 * Name of the records to add/list/remove.
93 * Value of the record to add/remove.
98 * Type of the record to add/remove, NULL to remove all.
100 static char *typestring;
103 * Desired expiration time.
105 static char *expirationstring;
109 * Task run on shutdown. Cleans up everything.
112 * @param tc scheduler context
115 do_shutdown (void *cls,
116 const struct GNUNET_SCHEDULER_TaskContext *tc)
120 GNUNET_NAMESTORE_disconnect (ns, GNUNET_NO);
123 if (NULL != zone_pkey)
125 GNUNET_CRYPTO_rsa_key_free (zone_pkey);
132 * Continuation called to notify client about result of the
135 * @param cls closure, unused
136 * @param success GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
137 * GNUNET_NO if content was already there
138 * GNUNET_YES (or other positive value) on success
139 * @param emsg NULL on success, otherwise an error message
142 add_continuation (void *cls,
147 if (success != GNUNET_YES)
149 _("Adding record failed: %s\n"),
150 (success == GNUNET_NO) ? "record exists" : emsg);
151 if ( (NULL == del_qe) &&
153 GNUNET_SCHEDULER_shutdown ();
158 * Continuation called to notify client about result of the
161 * @param cls closure, unused
162 * @param success GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
163 * GNUNET_NO if content was already there
164 * GNUNET_YES (or other positive value) on success
165 * @param emsg NULL on success, otherwise an error message
168 del_continuation (void *cls,
173 if (success != GNUNET_YES)
175 _("Deleting record failed: %s\n"),
177 if ( (NULL == add_qe) &&
179 GNUNET_SCHEDULER_shutdown ();
184 * Process a record that was stored in the namestore.
187 * @param zone_key public key of the zone
188 * @param expire when does the corresponding block in the DHT expire (until
189 * when should we never do a DHT lookup for the same name again)?;
190 * GNUNET_TIME_UNIT_ZERO_ABS if there are no records of any type in the namestore,
191 * or the expiration time of the block in the namestore (even if there are zero
192 * records matching the desired record type)
193 * @param name name that is being mapped (at most 255 characters long)
194 * @param rd_len number of entries in 'rd' array
195 * @param rd array of records with data to store
196 * @param signature signature of the record block, NULL if signature is unavailable (i.e.
197 * because the user queried for a particular record type only)
200 display_record (void *cls,
201 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
202 struct GNUNET_TIME_Absolute expire,
205 const struct GNUNET_NAMESTORE_RecordData *rd,
206 const struct GNUNET_CRYPTO_RsaSignature *signature)
208 const char *typestring;
215 if ( (NULL == del_qe) &&
217 GNUNET_SCHEDULER_shutdown ();
223 for (i=0;i<rd_len;i++)
225 typestring = GNUNET_NAMESTORE_number_to_typename (rd[i].record_type);
226 s = GNUNET_NAMESTORE_value_to_string (rd[i].record_type,
231 FPRINTF (stdout, _("\tCorrupt or unsupported record of type %u\n"),
232 (unsigned int) rd[i].record_type);
235 FPRINTF (stdout, "\t%s: %s\n", typestring, s);
238 FPRINTF (stdout, "%s", "\n");
239 GNUNET_NAMESTORE_zone_iterator_next (list_it);
244 * Main function that will be run.
247 * @param args remaining command-line arguments
248 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
249 * @param cfg configuration
252 run (void *cls, char *const *args, const char *cfgfile,
253 const struct GNUNET_CONFIGURATION_Handle *cfg)
255 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
258 size_t data_size = 0;
259 struct GNUNET_TIME_Relative etime;
260 struct GNUNET_NAMESTORE_RecordData rd;
265 _("Option `%s' not given, but I need a zone key file!\n"),
269 zone_pkey = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
270 GNUNET_free (keyfile);
272 if (! (add|del|list))
274 /* nothing more to be done */
275 GNUNET_CRYPTO_rsa_key_free (zone_pkey);
279 if (NULL == zone_pkey)
281 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
282 _("Failed to read or create private zone key\n"));
285 GNUNET_CRYPTO_rsa_key_get_public (zone_pkey,
287 GNUNET_CRYPTO_hash (&pub, sizeof (pub), &zone);
289 ns = GNUNET_NAMESTORE_connect (cfg);
292 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
293 _("Failed to connect to namestore\n"));
296 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
298 if (NULL == typestring)
301 type = GNUNET_NAMESTORE_typename_to_number (typestring);
302 if (UINT32_MAX == type)
304 fprintf (stderr, _("Unsupported type `%s'\n"), typestring);
305 GNUNET_SCHEDULER_shutdown ();
307 } else if (add | del)
310 _("Missing option `%s' for operation `%s'\n"),
312 GNUNET_SCHEDULER_shutdown ();
318 GNUNET_NAMESTORE_string_to_value (type,
323 fprintf (stderr, _("Value `%s' invalid for record type `%s'\n"),
326 GNUNET_SCHEDULER_shutdown ();
329 } else if (add | del)
332 _("Missing option `%s' for operation `%s'\n"),
334 GNUNET_SCHEDULER_shutdown ();
337 if (NULL != expirationstring)
340 GNUNET_STRINGS_fancy_time_to_relative (expirationstring,
344 _("Invalid time format `%s'\n"),
346 GNUNET_SCHEDULER_shutdown ();
349 } else if (add | del)
352 _("Missing option `%s' for operation `%s'\n"),
354 GNUNET_SCHEDULER_shutdown ();
362 _("Missing option `%s' for operation `%s'\n"),
364 GNUNET_SCHEDULER_shutdown ();
368 rd.data_size = data_size;
369 rd.record_type = type;
370 rd.expiration = GNUNET_TIME_relative_to_absolute (etime);
371 rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY; // FIXME: not always...
372 add_qe = GNUNET_NAMESTORE_record_create (ns,
384 _("Missing option `%s' for operation `%s'\n"),
386 GNUNET_SCHEDULER_shutdown ();
390 rd.data_size = data_size;
391 rd.record_type = type;
392 rd.expiration = GNUNET_TIME_relative_to_absolute (etime);
393 rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY; // FIXME: not always...
394 del_qe = GNUNET_NAMESTORE_record_remove (ns,
403 list_it = GNUNET_NAMESTORE_zone_iteration_start (ns,
409 GNUNET_free_non_null (data);
414 * The main function for gnunet-namestore.
416 * @param argc number of arguments from the command line
417 * @param argv command line arguments
418 * @return 0 ok, 1 on error
421 main (int argc, char *const *argv)
423 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
425 gettext_noop ("add record"), 0,
426 &GNUNET_GETOPT_set_one, &add},
427 {'d', "delete", NULL,
428 gettext_noop ("delete record"), 0,
429 &GNUNET_GETOPT_set_one, &del},
430 {'D', "display", NULL,
431 gettext_noop ("display records"), 0,
432 &GNUNET_GETOPT_set_one, &list},
433 {'e', "expiration", "TIME",
434 gettext_noop ("expiration time for record to use (for adding only)"), 1,
435 &GNUNET_GETOPT_set_string, &expirationstring},
436 {'n', "name", "NAME",
437 gettext_noop ("name of the record to add/delete/display"), 1,
438 &GNUNET_GETOPT_set_string, &name},
439 {'t', "type", "TYPE",
440 gettext_noop ("type of the record to add/delete/display"), 1,
441 &GNUNET_GETOPT_set_string, &typestring},
442 {'V', "value", "VALUE",
443 gettext_noop ("value of the record to add/delete"), 1,
444 &GNUNET_GETOPT_set_string, &value},
445 {'z', "zonekey", "FILENAME",
446 gettext_noop ("filename with the zone key"), 1,
447 &GNUNET_GETOPT_set_string, &keyfile},
448 GNUNET_GETOPT_OPTION_END
453 GNUNET_log_setup ("gnunet-namestore", "WARNING", NULL);
456 GNUNET_PROGRAM_run (argc, argv, "gnunet-namestore",
457 _("GNUnet zone manipulation tool"),
459 &run, NULL)) ? 0 : 1;
464 /* end of gnunet-namestore.c */