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
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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.
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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 gnunet-namestore.c
22 * @brief command line tool to manipulate the local zone
23 * @author Christian Grothoff
26 * - allow users to set record options (not just 'RF_AUTHORITY')
28 * - add options to list/lookup individual records
31 #include <gnunet_util_lib.h>
32 #include <gnunet_dnsparser_lib.h>
33 #include <gnunet_namestore_service.h>
36 * Handle to the namestore.
38 static struct GNUNET_NAMESTORE_Handle *ns;
41 * Hash of the public key of our zone.
43 static struct GNUNET_CRYPTO_ShortHashCode zone;
46 * Private key for the our zone.
48 static struct GNUNET_CRYPTO_RsaPrivateKey *zone_pkey;
51 * Keyfile to manipulate.
56 * Desired action is to add a record.
61 * Queue entry for the 'add' operation.
63 static struct GNUNET_NAMESTORE_QueueEntry *add_qe;
66 * Desired action is to list records.
71 * List iterator for the 'list' operation.
73 static struct GNUNET_NAMESTORE_ZoneIterator *list_it;
76 * Desired action is to remove a record.
88 static int nonauthority;
91 * Queue entry for the 'del' operation.
93 static struct GNUNET_NAMESTORE_QueueEntry *del_qe;
96 * Name of the records to add/list/remove.
101 * Value of the record to add/remove.
106 * Type of the record to add/remove, NULL to remove all.
108 static char *typestring;
111 * Desired expiration time.
113 static char *expirationstring;
117 * Task run on shutdown. Cleans up everything.
120 * @param tc scheduler context
123 do_shutdown (void *cls,
124 const struct GNUNET_SCHEDULER_TaskContext *tc)
128 GNUNET_NAMESTORE_disconnect (ns, GNUNET_NO);
131 if (NULL != zone_pkey)
133 GNUNET_CRYPTO_rsa_key_free (zone_pkey);
140 * Continuation called to notify client about result of the
143 * @param cls closure, unused
144 * @param success GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
145 * GNUNET_NO if content was already there
146 * GNUNET_YES (or other positive value) on success
147 * @param emsg NULL on success, otherwise an error message
150 add_continuation (void *cls,
155 if (success != GNUNET_YES)
157 _("Adding record failed: %s\n"),
158 (success == GNUNET_NO) ? "record exists" : emsg);
159 if ( (NULL == del_qe) &&
161 GNUNET_SCHEDULER_shutdown ();
166 * Continuation called to notify client about result of the
169 * @param cls closure, unused
170 * @param success GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
171 * GNUNET_NO if content was already there
172 * GNUNET_YES (or other positive value) on success
173 * @param emsg NULL on success, otherwise an error message
176 del_continuation (void *cls,
181 if (success != GNUNET_YES)
183 _("Deleting record failed: %s\n"),
185 if ( (NULL == add_qe) &&
187 GNUNET_SCHEDULER_shutdown ();
192 * Process a record that was stored in the namestore.
195 * @param zone_key public key of the zone
196 * @param expire when does the corresponding block in the DHT expire (until
197 * when should we never do a DHT lookup for the same name again)?;
198 * GNUNET_TIME_UNIT_ZERO_ABS if there are no records of any type in the namestore,
199 * or the expiration time of the block in the namestore (even if there are zero
200 * records matching the desired record type)
201 * @param name name that is being mapped (at most 255 characters long)
202 * @param rd_len number of entries in 'rd' array
203 * @param rd array of records with data to store
204 * @param signature signature of the record block, NULL if signature is unavailable (i.e.
205 * because the user queried for a particular record type only)
208 display_record (void *cls,
209 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
210 struct GNUNET_TIME_Absolute expire,
213 const struct GNUNET_NAMESTORE_RecordData *rd,
214 const struct GNUNET_CRYPTO_RsaSignature *signature)
216 const char *typestring;
223 if ( (NULL == del_qe) &&
225 GNUNET_SCHEDULER_shutdown ();
231 for (i=0;i<rd_len;i++)
233 typestring = GNUNET_NAMESTORE_number_to_typename (rd[i].record_type);
234 s = GNUNET_NAMESTORE_value_to_string (rd[i].record_type,
239 FPRINTF (stdout, _("\tCorrupt or unsupported record of type %u\n"),
240 (unsigned int) rd[i].record_type);
243 FPRINTF (stdout, "\t%s: %s\n", typestring, s);
246 FPRINTF (stdout, "%s", "\n");
247 GNUNET_NAMESTORE_zone_iterator_next (list_it);
252 * Main function that will be run.
255 * @param args remaining command-line arguments
256 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
257 * @param cfg configuration
260 run (void *cls, char *const *args, const char *cfgfile,
261 const struct GNUNET_CONFIGURATION_Handle *cfg)
263 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
266 size_t data_size = 0;
267 struct GNUNET_TIME_Relative etime;
268 struct GNUNET_NAMESTORE_RecordData rd;
272 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
273 "ZONEKEY", &keyfile))
276 _("Option `%s' not given, but I need a zone key file!\n"),
281 _("Using default zone file `%s'\n"),
284 zone_pkey = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
285 GNUNET_free (keyfile);
287 if (! (add|del|list))
289 /* nothing more to be done */
291 _("No options given\n"));
292 GNUNET_CRYPTO_rsa_key_free (zone_pkey);
296 if (NULL == zone_pkey)
298 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
299 _("Failed to read or create private zone key\n"));
302 GNUNET_CRYPTO_rsa_key_get_public (zone_pkey,
304 GNUNET_CRYPTO_short_hash (&pub, sizeof (pub), &zone);
306 ns = GNUNET_NAMESTORE_connect (cfg);
309 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
310 _("Failed to connect to namestore\n"));
313 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
315 if (NULL == typestring)
318 type = GNUNET_NAMESTORE_typename_to_number (typestring);
319 if (UINT32_MAX == type)
321 fprintf (stderr, _("Unsupported type `%s'\n"), typestring);
322 GNUNET_SCHEDULER_shutdown ();
325 if ((NULL == typestring) && (add | del))
328 _("Missing option `%s' for operation `%s'\n"),
330 GNUNET_SCHEDULER_shutdown ();
336 GNUNET_NAMESTORE_string_to_value (type,
341 fprintf (stderr, _("Value `%s' invalid for record type `%s'\n"),
344 GNUNET_SCHEDULER_shutdown ();
347 } else if (add | del)
350 _("Missing option `%s' for operation `%s'\n"),
352 GNUNET_SCHEDULER_shutdown ();
355 if (NULL != expirationstring)
357 if (0 == strcmp (expirationstring, "never"))
359 etime = GNUNET_TIME_relative_get_forever();
361 else if (GNUNET_OK !=
362 GNUNET_STRINGS_fancy_time_to_relative (expirationstring,
366 _("Invalid time format `%s'\n"),
368 GNUNET_SCHEDULER_shutdown ();
374 _("Missing option `%s' for operation `%s'\n"),
376 GNUNET_SCHEDULER_shutdown ();
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 if (1 != nonauthority)
394 rd.flags |= GNUNET_NAMESTORE_RF_AUTHORITY;
396 rd.flags |= GNUNET_NAMESTORE_RF_PRIVATE;
397 add_qe = GNUNET_NAMESTORE_record_create (ns,
409 _("Missing option `%s' for operation `%s'\n"),
411 GNUNET_SCHEDULER_shutdown ();
415 rd.data_size = data_size;
416 rd.record_type = type;
417 rd.expiration.abs_value = 0;
418 rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
419 del_qe = GNUNET_NAMESTORE_record_remove (ns,
428 uint32_t must_not_flags = 0;
430 if (1 == nonauthority) /* List non-authority records */
431 must_not_flags |= GNUNET_NAMESTORE_RF_AUTHORITY;
434 must_not_flags |= GNUNET_NAMESTORE_RF_PRIVATE;
436 list_it = GNUNET_NAMESTORE_zone_iteration_start (ns,
443 GNUNET_free_non_null (data);
448 * The main function for gnunet-namestore.
450 * @param argc number of arguments from the command line
451 * @param argv command line arguments
452 * @return 0 ok, 1 on error
455 main (int argc, char *const *argv)
460 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
462 gettext_noop ("add record"), 0,
463 &GNUNET_GETOPT_set_one, &add},
464 {'d', "delete", NULL,
465 gettext_noop ("delete record"), 0,
466 &GNUNET_GETOPT_set_one, &del},
467 {'D', "display", NULL,
468 gettext_noop ("display records"), 0,
469 &GNUNET_GETOPT_set_one, &list},
470 {'e', "expiration", "TIME",
471 gettext_noop ("expiration time for record to use (for adding only), \"never\" is possible"), 1,
472 &GNUNET_GETOPT_set_string, &expirationstring},
473 {'n', "name", "NAME",
474 gettext_noop ("name of the record to add/delete/display"), 1,
475 &GNUNET_GETOPT_set_string, &name},
476 {'t', "type", "TYPE",
477 gettext_noop ("type of the record to add/delete/display"), 1,
478 &GNUNET_GETOPT_set_string, &typestring},
479 {'V', "value", "VALUE",
480 gettext_noop ("value of the record to add/delete"), 1,
481 &GNUNET_GETOPT_set_string, &value},
482 {'p', "public", NULL,
483 gettext_noop ("create or list public record"), 0,
484 &GNUNET_GETOPT_set_one, &public},
485 {'N', "non-authority", NULL,
486 gettext_noop ("create or list non-authority record"), 0,
487 &GNUNET_GETOPT_set_one, &nonauthority},
488 {'z', "zonekey", "FILENAME",
489 gettext_noop ("filename with the zone key"), 1,
490 &GNUNET_GETOPT_set_string, &keyfile},
491 GNUNET_GETOPT_OPTION_END
496 GNUNET_log_setup ("gnunet-namestore", "WARNING", NULL);
499 GNUNET_PROGRAM_run (argc, argv, "gnunet-namestore",
500 _("GNUnet zone manipulation tool"),
502 &run, NULL)) ? 0 : 1;
507 /* end of gnunet-namestore.c */