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 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>
37 * Handle to the namestore.
39 static struct GNUNET_NAMESTORE_Handle *ns;
42 * Hash of the public key of our zone.
44 static struct GNUNET_CRYPTO_ShortHashCode zone;
47 * Private key for the our zone.
49 static struct GNUNET_CRYPTO_RsaPrivateKey *zone_pkey;
52 * Keyfile to manipulate.
57 * Desired action is to add a record.
62 * Queue entry for the 'add' operation.
64 static struct GNUNET_NAMESTORE_QueueEntry *add_qe;
67 * Desired action is to list records.
72 * List iterator for the 'list' operation.
74 static struct GNUNET_NAMESTORE_ZoneIterator *list_it;
77 * Desired action is to remove a record.
89 static int nonauthority;
92 * Queue entry for the 'del' operation.
94 static struct GNUNET_NAMESTORE_QueueEntry *del_qe;
97 * Name of the records to add/list/remove.
102 * Value of the record to add/remove.
112 * Type of the record to add/remove, NULL to remove all.
114 static char *typestring;
117 * Desired expiration time.
119 static char *expirationstring;
122 * Global return value
128 * Task run on shutdown. Cleans up everything.
131 * @param tc scheduler context
134 do_shutdown (void *cls,
135 const struct GNUNET_SCHEDULER_TaskContext *tc)
139 GNUNET_NAMESTORE_disconnect (ns);
142 if (NULL != zone_pkey)
144 GNUNET_CRYPTO_rsa_key_free (zone_pkey);
156 * Continuation called to notify client about result of the
159 * @param cls closure, unused
160 * @param success GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
161 * GNUNET_NO if content was already there
162 * GNUNET_YES (or other positive value) on success
163 * @param emsg NULL on success, otherwise an error message
166 add_continuation (void *cls,
171 if (GNUNET_YES != success)
174 _("Adding record failed: %s\n"),
175 (GNUNET_NO == success) ? "record exists" : emsg);
176 if (GNUNET_NO != success)
179 if ( (NULL == del_qe) &&
181 GNUNET_SCHEDULER_shutdown ();
186 * Continuation called to notify client about result of the
189 * @param cls closure, unused
190 * @param success GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
191 * GNUNET_NO if content was already there
192 * GNUNET_YES (or other positive value) on success
193 * @param emsg NULL on success, otherwise an error message
196 del_continuation (void *cls,
201 if (success != GNUNET_YES)
203 _("Deleting record failed: %s\n"),
205 if ( (NULL == add_qe) &&
207 GNUNET_SCHEDULER_shutdown ();
212 * Process a record that was stored in the namestore.
215 * @param zone_key public key of the zone
216 * @param expire when does the corresponding block in the DHT expire (until
217 * when should we never do a DHT lookup for the same name again)?;
218 * GNUNET_TIME_UNIT_ZERO_ABS if there are no records of any type in the namestore,
219 * or the expiration time of the block in the namestore (even if there are zero
220 * records matching the desired record type)
221 * @param name name that is being mapped (at most 255 characters long)
222 * @param rd_len number of entries in 'rd' array
223 * @param rd array of records with data to store
224 * @param signature signature of the record block, NULL if signature is unavailable (i.e.
225 * because the user queried for a particular record type only)
228 display_record (void *cls,
229 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
230 struct GNUNET_TIME_Absolute expire,
233 const struct GNUNET_NAMESTORE_RecordData *rd,
234 const struct GNUNET_CRYPTO_RsaSignature *signature)
236 const char *typestring;
240 struct GNUNET_TIME_Absolute aex;
241 struct GNUNET_TIME_Relative rex;
246 if ( (NULL == del_qe) &&
248 GNUNET_SCHEDULER_shutdown ();
254 for (i=0;i<rd_len;i++)
256 typestring = GNUNET_NAMESTORE_number_to_typename (rd[i].record_type);
257 s = GNUNET_NAMESTORE_value_to_string (rd[i].record_type,
262 FPRINTF (stdout, _("\tCorrupt or unsupported record of type %u\n"),
263 (unsigned int) rd[i].record_type);
266 if (0 != (rd[i].flags & GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION))
268 rex.rel_value = rd[i].expiration_time;
269 etime = GNUNET_STRINGS_relative_time_to_string (rex);
273 aex.abs_value = rd[i].expiration_time;
274 etime = GNUNET_STRINGS_absolute_time_to_string (aex);
276 FPRINTF (stdout, "\t%s: %s (%s %s)\n", typestring, s,
277 (0 != (rd[i].flags & GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION))
278 ? _(/* what follows is relative expiration */ "for at least")
279 : _(/* what follows is absolute expiration */ "until"),
284 FPRINTF (stdout, "%s", "\n");
285 GNUNET_NAMESTORE_zone_iterator_next (list_it);
290 * Main function that will be run.
293 * @param args remaining command-line arguments
294 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
295 * @param cfg configuration
298 run (void *cls, char *const *args, const char *cfgfile,
299 const struct GNUNET_CONFIGURATION_Handle *cfg)
301 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
304 size_t data_size = 0;
305 struct GNUNET_TIME_Relative etime_rel;
306 struct GNUNET_TIME_Absolute etime_abs;
307 int etime_is_rel = GNUNET_SYSERR;
308 struct GNUNET_NAMESTORE_RecordData rd;
310 if ( (NULL != args[0]) && (NULL == uri) )
311 uri = GNUNET_strdup (args[0]);
314 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
315 "ZONEKEY", &keyfile))
318 _("Option `%s' not given, but I need a zone key file!\n"),
323 _("Using default zone file `%s'\n"),
326 zone_pkey = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
327 GNUNET_free (keyfile);
329 if (! (add|del|list|(NULL != uri)))
331 /* nothing more to be done */
333 _("No options given\n"));
334 GNUNET_CRYPTO_rsa_key_free (zone_pkey);
338 if (NULL == zone_pkey)
340 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
341 _("Failed to read or create private zone key\n"));
344 GNUNET_CRYPTO_rsa_key_get_public (zone_pkey,
346 GNUNET_CRYPTO_short_hash (&pub, sizeof (pub), &zone);
348 ns = GNUNET_NAMESTORE_connect (cfg);
351 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
352 _("Failed to connect to namestore\n"));
355 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
357 if (NULL == typestring)
360 type = GNUNET_NAMESTORE_typename_to_number (typestring);
361 if (UINT32_MAX == type)
363 fprintf (stderr, _("Unsupported type `%s'\n"), typestring);
364 GNUNET_SCHEDULER_shutdown ();
368 if ((NULL == typestring) && (add | del))
371 _("Missing option `%s' for operation `%s'\n"),
373 GNUNET_SCHEDULER_shutdown ();
380 GNUNET_NAMESTORE_string_to_value (type,
385 fprintf (stderr, _("Value `%s' invalid for record type `%s'\n"),
388 GNUNET_SCHEDULER_shutdown ();
392 } else if (add | del)
395 _("Missing option `%s' for operation `%s'\n"),
398 GNUNET_SCHEDULER_shutdown ();
401 if (NULL != expirationstring)
403 if (0 == strcmp (expirationstring, "never"))
405 etime_abs = GNUNET_TIME_UNIT_FOREVER_ABS;
406 etime_is_rel = GNUNET_NO;
408 else if (GNUNET_OK ==
409 GNUNET_STRINGS_fancy_time_to_relative (expirationstring,
412 etime_is_rel = GNUNET_YES;
414 else if (GNUNET_OK ==
415 GNUNET_STRINGS_fancy_time_to_absolute (expirationstring,
418 etime_is_rel = GNUNET_NO;
423 _("Invalid time format `%s'\n"),
425 GNUNET_SCHEDULER_shutdown ();
433 _("Missing option `%s' for operation `%s'\n"),
435 GNUNET_SCHEDULER_shutdown ();
444 _("Missing option `%s' for operation `%s'\n"),
446 GNUNET_SCHEDULER_shutdown ();
451 rd.data_size = data_size;
452 rd.record_type = type;
453 if (GNUNET_YES == etime_is_rel)
455 rd.expiration_time = etime_rel.rel_value;
456 rd.flags |= GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION;
458 else if (GNUNET_NO == etime_is_rel)
459 rd.expiration_time = etime_abs.abs_value;
463 _("No valid expiration time for operation `%s'\n"),
465 GNUNET_SCHEDULER_shutdown ();
469 if (1 != nonauthority)
470 rd.flags |= GNUNET_NAMESTORE_RF_AUTHORITY;
472 rd.flags |= GNUNET_NAMESTORE_RF_PRIVATE;
473 add_qe = GNUNET_NAMESTORE_record_create (ns,
485 _("Missing option `%s' for operation `%s'\n"),
487 GNUNET_SCHEDULER_shutdown ();
492 rd.data_size = data_size;
493 rd.record_type = type;
494 rd.expiration_time = 0;
495 rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
496 del_qe = GNUNET_NAMESTORE_record_remove (ns,
505 uint32_t must_not_flags = 0;
507 if (1 == nonauthority) /* List non-authority records */
508 must_not_flags |= GNUNET_NAMESTORE_RF_AUTHORITY;
511 must_not_flags |= GNUNET_NAMESTORE_RF_PRIVATE;
513 list_it = GNUNET_NAMESTORE_zone_iteration_start (ns,
515 GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION,
524 struct GNUNET_CRYPTO_ShortHashCode sc;
526 if ( (2 != (sscanf (uri,
527 "gnunet://gns/%52s/%63s",
531 GNUNET_CRYPTO_short_hash_from_string (sh, &sc)) )
534 _("Invalid URI `%s'\n"),
536 GNUNET_SCHEDULER_shutdown ();
541 rd.data_size = sizeof (struct GNUNET_CRYPTO_ShortHashCode);
542 rd.record_type = GNUNET_NAMESTORE_TYPE_PKEY;
543 if (GNUNET_YES == etime_is_rel)
545 rd.expiration_time = etime_rel.rel_value;
546 rd.flags |= GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION;
548 else if (GNUNET_NO == etime_is_rel)
549 rd.expiration_time = etime_abs.abs_value;
551 rd.expiration_time = GNUNET_TIME_UNIT_FOREVER_ABS.abs_value;
552 if (1 != nonauthority)
553 rd.flags |= GNUNET_NAMESTORE_RF_AUTHORITY;
555 add_qe = GNUNET_NAMESTORE_record_create (ns,
562 GNUNET_free_non_null (data);
567 * The main function for gnunet-namestore.
569 * @param argc number of arguments from the command line
570 * @param argv command line arguments
571 * @return 0 ok, 1 on error
574 main (int argc, char *const *argv)
579 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
581 gettext_noop ("add record"), 0,
582 &GNUNET_GETOPT_set_one, &add},
583 {'d', "delete", NULL,
584 gettext_noop ("delete record"), 0,
585 &GNUNET_GETOPT_set_one, &del},
586 {'D', "display", NULL,
587 gettext_noop ("display records"), 0,
588 &GNUNET_GETOPT_set_one, &list},
589 {'e', "expiration", "TIME",
590 gettext_noop ("expiration time for record to use (for adding only), \"never\" is possible"), 1,
591 &GNUNET_GETOPT_set_string, &expirationstring},
592 {'n', "name", "NAME",
593 gettext_noop ("name of the record to add/delete/display"), 1,
594 &GNUNET_GETOPT_set_string, &name},
595 {'t', "type", "TYPE",
596 gettext_noop ("type of the record to add/delete/display"), 1,
597 &GNUNET_GETOPT_set_string, &typestring},
599 gettext_noop ("URI to import into our zone"), 1,
600 &GNUNET_GETOPT_set_string, &uri},
601 {'V', "value", "VALUE",
602 gettext_noop ("value of the record to add/delete"), 1,
603 &GNUNET_GETOPT_set_string, &value},
604 {'p', "public", NULL,
605 gettext_noop ("create or list public record"), 0,
606 &GNUNET_GETOPT_set_one, &public},
607 {'N', "non-authority", NULL,
608 gettext_noop ("create or list non-authority record"), 0,
609 &GNUNET_GETOPT_set_one, &nonauthority},
610 {'z', "zonekey", "FILENAME",
611 gettext_noop ("filename with the zone key"), 1,
612 &GNUNET_GETOPT_set_string, &keyfile},
613 GNUNET_GETOPT_OPTION_END
616 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
619 GNUNET_log_setup ("gnunet-namestore", "WARNING", NULL);
621 GNUNET_PROGRAM_run (argc, argv, "gnunet-namestore",
622 _("GNUnet zone manipulation tool"),
630 /* end of gnunet-namestore.c */