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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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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17 Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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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 * Queue entry for the 'add-uri' operation.
69 static struct GNUNET_NAMESTORE_QueueEntry *add_qe_uri;
72 * Desired action is to list records.
77 * List iterator for the 'list' operation.
79 static struct GNUNET_NAMESTORE_ZoneIterator *list_it;
82 * Desired action is to remove a record.
94 static int nonauthority;
97 * Queue entry for the 'del' operation.
99 static struct GNUNET_NAMESTORE_QueueEntry *del_qe;
102 * Name of the records to add/list/remove.
107 * Value of the record to add/remove.
117 * Type of the record to add/remove, NULL to remove all.
119 static char *typestring;
122 * Desired expiration time.
124 static char *expirationstring;
127 * Global return value
133 * Task run on shutdown. Cleans up everything.
136 * @param tc scheduler context
139 do_shutdown (void *cls,
140 const struct GNUNET_SCHEDULER_TaskContext *tc)
144 GNUNET_NAMESTORE_zone_iteration_stop (list_it);
149 GNUNET_NAMESTORE_cancel (add_qe);
152 if (NULL != add_qe_uri)
154 GNUNET_NAMESTORE_cancel (add_qe_uri);
159 GNUNET_NAMESTORE_cancel (del_qe);
164 GNUNET_NAMESTORE_disconnect (ns);
167 if (NULL != zone_pkey)
169 GNUNET_CRYPTO_rsa_key_free (zone_pkey);
181 * Continuation called to notify client about result of the
184 * @param cls closure, location of the QueueEntry pointer to NULL out
185 * @param success GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
186 * GNUNET_NO if content was already there
187 * GNUNET_YES (or other positive value) on success
188 * @param emsg NULL on success, otherwise an error message
191 add_continuation (void *cls,
195 struct GNUNET_NAMESTORE_QueueEntry **qe = cls;
198 if (GNUNET_YES != success)
201 _("Adding record failed: %s\n"),
202 (GNUNET_NO == success) ? "record exists" : emsg);
203 if (GNUNET_NO != success)
206 if ( (NULL == add_qe) &&
207 (NULL == add_qe_uri) &&
210 GNUNET_SCHEDULER_shutdown ();
215 * Continuation called to notify client about result of the
218 * @param cls closure, unused
219 * @param success GNUNET_SYSERR on failure (including timeout/queue drop/failure to validate)
220 * GNUNET_NO if content was already there
221 * GNUNET_YES (or other positive value) on success
222 * @param emsg NULL on success, otherwise an error message
225 del_continuation (void *cls,
230 if (success != GNUNET_YES)
232 _("Deleting record failed: %s\n"),
234 if ( (NULL == add_qe) &&
235 (NULL == add_qe_uri) &&
237 GNUNET_SCHEDULER_shutdown ();
242 * Process a record that was stored in the namestore.
245 * @param zone_key public key of the zone
246 * @param expire when does the corresponding block in the DHT expire (until
247 * when should we never do a DHT lookup for the same name again)?;
248 * GNUNET_TIME_UNIT_ZERO_ABS if there are no records of any type in the namestore,
249 * or the expiration time of the block in the namestore (even if there are zero
250 * records matching the desired record type)
251 * @param name name that is being mapped (at most 255 characters long)
252 * @param rd_len number of entries in 'rd' array
253 * @param rd array of records with data to store
254 * @param signature signature of the record block, NULL if signature is unavailable (i.e.
255 * because the user queried for a particular record type only)
258 display_record (void *cls,
259 const struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded *zone_key,
260 struct GNUNET_TIME_Absolute expire,
263 const struct GNUNET_NAMESTORE_RecordData *rd,
264 const struct GNUNET_CRYPTO_RsaSignature *signature)
266 const char *typestring;
270 struct GNUNET_TIME_Absolute aex;
271 struct GNUNET_TIME_Relative rex;
276 if ( (NULL == del_qe) &&
277 (NULL == add_qe_uri) &&
279 GNUNET_SCHEDULER_shutdown ();
285 for (i=0;i<rd_len;i++)
287 typestring = GNUNET_NAMESTORE_number_to_typename (rd[i].record_type);
288 s = GNUNET_NAMESTORE_value_to_string (rd[i].record_type,
293 FPRINTF (stdout, _("\tCorrupt or unsupported record of type %u\n"),
294 (unsigned int) rd[i].record_type);
297 if (0 != (rd[i].flags & GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION))
299 rex.rel_value = rd[i].expiration_time;
300 etime = GNUNET_STRINGS_relative_time_to_string (rex);
304 aex.abs_value = rd[i].expiration_time;
305 etime = GNUNET_STRINGS_absolute_time_to_string (aex);
307 FPRINTF (stdout, "\t%s: %s (%s %s)\n", typestring, s,
308 (0 != (rd[i].flags & GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION))
309 ? _(/* what follows is relative expiration */ "for at least")
310 : _(/* what follows is absolute expiration */ "until"),
315 FPRINTF (stdout, "%s", "\n");
316 GNUNET_NAMESTORE_zone_iterator_next (list_it);
321 * Main function that will be run.
324 * @param args remaining command-line arguments
325 * @param cfgfile name of the configuration file used (for saving, can be NULL!)
326 * @param cfg configuration
329 run (void *cls, char *const *args, const char *cfgfile,
330 const struct GNUNET_CONFIGURATION_Handle *cfg)
332 struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded pub;
335 size_t data_size = 0;
336 struct GNUNET_TIME_Relative etime_rel;
337 struct GNUNET_TIME_Absolute etime_abs;
338 int etime_is_rel = GNUNET_SYSERR;
339 struct GNUNET_NAMESTORE_RecordData rd;
341 if ( (NULL != args[0]) && (NULL == uri) )
342 uri = GNUNET_strdup (args[0]);
345 if (GNUNET_OK != GNUNET_CONFIGURATION_get_value_filename (cfg, "gns",
346 "ZONEKEY", &keyfile))
349 _("Option `%s' not given, but I need a zone key file!\n"),
354 _("Using default zone file `%s'\n"),
357 zone_pkey = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
358 GNUNET_free (keyfile);
360 if (! (add|del|list|(NULL != uri)))
362 /* nothing more to be done */
364 _("No options given\n"));
365 GNUNET_CRYPTO_rsa_key_free (zone_pkey);
369 if (NULL == zone_pkey)
371 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
372 _("Failed to read or create private zone key\n"));
375 GNUNET_CRYPTO_rsa_key_get_public (zone_pkey,
377 GNUNET_CRYPTO_short_hash (&pub, sizeof (pub), &zone);
379 ns = GNUNET_NAMESTORE_connect (cfg);
382 GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
383 _("Failed to connect to namestore\n"));
386 GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
388 if (NULL == typestring)
391 type = GNUNET_NAMESTORE_typename_to_number (typestring);
392 if (UINT32_MAX == type)
394 fprintf (stderr, _("Unsupported type `%s'\n"), typestring);
395 GNUNET_SCHEDULER_shutdown ();
399 if ((NULL == typestring) && (add | del))
402 _("Missing option `%s' for operation `%s'\n"),
404 GNUNET_SCHEDULER_shutdown ();
411 GNUNET_NAMESTORE_string_to_value (type,
416 fprintf (stderr, _("Value `%s' invalid for record type `%s'\n"),
419 GNUNET_SCHEDULER_shutdown ();
423 } else if (add | del)
426 _("Missing option `%s' for operation `%s'\n"),
429 GNUNET_SCHEDULER_shutdown ();
432 if (NULL != expirationstring)
434 if (0 == strcmp (expirationstring, "never"))
436 etime_abs = GNUNET_TIME_UNIT_FOREVER_ABS;
437 etime_is_rel = GNUNET_NO;
439 else if (GNUNET_OK ==
440 GNUNET_STRINGS_fancy_time_to_relative (expirationstring,
443 etime_is_rel = GNUNET_YES;
445 else if (GNUNET_OK ==
446 GNUNET_STRINGS_fancy_time_to_absolute (expirationstring,
449 etime_is_rel = GNUNET_NO;
454 _("Invalid time format `%s'\n"),
456 GNUNET_SCHEDULER_shutdown ();
460 if (etime_is_rel && del)
463 _("Deletion requires either absolute time, or no time at all. Got relative time `%s' instead.\n"),
465 GNUNET_SCHEDULER_shutdown ();
473 _("Missing option `%s' for operation `%s'\n"),
475 GNUNET_SCHEDULER_shutdown ();
479 memset (&rd, 0, sizeof (rd));
485 _("Missing option `%s' for operation `%s'\n"),
487 GNUNET_SCHEDULER_shutdown ();
492 rd.data_size = data_size;
493 rd.record_type = type;
494 if (GNUNET_YES == etime_is_rel)
496 rd.expiration_time = etime_rel.rel_value;
497 rd.flags |= GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION;
499 else if (GNUNET_NO == etime_is_rel)
500 rd.expiration_time = etime_abs.abs_value;
504 _("No valid expiration time for operation `%s'\n"),
506 GNUNET_SCHEDULER_shutdown ();
510 if (1 != nonauthority)
511 rd.flags |= GNUNET_NAMESTORE_RF_AUTHORITY;
513 rd.flags |= GNUNET_NAMESTORE_RF_PRIVATE;
514 add_qe = GNUNET_NAMESTORE_record_create (ns,
526 _("Missing option `%s' for operation `%s'\n"),
528 GNUNET_SCHEDULER_shutdown ();
533 rd.data_size = data_size;
534 rd.record_type = type;
535 rd.expiration_time = 0;
537 rd.expiration_time = etime_abs.abs_value;
538 rd.flags = GNUNET_NAMESTORE_RF_AUTHORITY;
539 del_qe = GNUNET_NAMESTORE_record_remove (ns,
548 uint32_t must_not_flags = 0;
550 if (1 == nonauthority) /* List non-authority records */
551 must_not_flags |= GNUNET_NAMESTORE_RF_AUTHORITY;
554 must_not_flags |= GNUNET_NAMESTORE_RF_PRIVATE;
556 list_it = GNUNET_NAMESTORE_zone_iteration_start (ns,
558 GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION,
567 struct GNUNET_CRYPTO_ShortHashCode sc;
569 if ( (2 != (sscanf (uri,
570 "gnunet://gns/%52s/%63s",
574 GNUNET_CRYPTO_short_hash_from_string (sh, &sc)) )
577 _("Invalid URI `%s'\n"),
579 GNUNET_SCHEDULER_shutdown ();
584 rd.data_size = sizeof (struct GNUNET_CRYPTO_ShortHashCode);
585 rd.record_type = GNUNET_NAMESTORE_TYPE_PKEY;
586 if (GNUNET_YES == etime_is_rel)
588 rd.expiration_time = etime_rel.rel_value;
589 rd.flags |= GNUNET_NAMESTORE_RF_RELATIVE_EXPIRATION;
591 else if (GNUNET_NO == etime_is_rel)
592 rd.expiration_time = etime_abs.abs_value;
594 rd.expiration_time = GNUNET_TIME_UNIT_FOREVER_ABS.abs_value;
595 if (1 != nonauthority)
596 rd.flags |= GNUNET_NAMESTORE_RF_AUTHORITY;
598 add_qe_uri = GNUNET_NAMESTORE_record_create (ns,
605 GNUNET_free_non_null (data);
610 * The main function for gnunet-namestore.
612 * @param argc number of arguments from the command line
613 * @param argv command line arguments
614 * @return 0 ok, 1 on error
617 main (int argc, char *const *argv)
622 static const struct GNUNET_GETOPT_CommandLineOption options[] = {
624 gettext_noop ("add record"), 0,
625 &GNUNET_GETOPT_set_one, &add},
626 {'d', "delete", NULL,
627 gettext_noop ("delete record"), 0,
628 &GNUNET_GETOPT_set_one, &del},
629 {'D', "display", NULL,
630 gettext_noop ("display records"), 0,
631 &GNUNET_GETOPT_set_one, &list},
632 {'e', "expiration", "TIME",
633 gettext_noop ("expiration time for record to use (for adding only), \"never\" is possible"), 1,
634 &GNUNET_GETOPT_set_string, &expirationstring},
635 {'n', "name", "NAME",
636 gettext_noop ("name of the record to add/delete/display"), 1,
637 &GNUNET_GETOPT_set_string, &name},
638 {'t', "type", "TYPE",
639 gettext_noop ("type of the record to add/delete/display"), 1,
640 &GNUNET_GETOPT_set_string, &typestring},
642 gettext_noop ("URI to import into our zone"), 1,
643 &GNUNET_GETOPT_set_string, &uri},
644 {'V', "value", "VALUE",
645 gettext_noop ("value of the record to add/delete"), 1,
646 &GNUNET_GETOPT_set_string, &value},
647 {'p', "public", NULL,
648 gettext_noop ("create or list public record"), 0,
649 &GNUNET_GETOPT_set_one, &public},
650 {'N', "non-authority", NULL,
651 gettext_noop ("create or list non-authority record"), 0,
652 &GNUNET_GETOPT_set_one, &nonauthority},
653 {'z', "zonekey", "FILENAME",
654 gettext_noop ("filename with the zone key"), 1,
655 &GNUNET_GETOPT_set_string, &keyfile},
656 GNUNET_GETOPT_OPTION_END
659 if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
662 GNUNET_log_setup ("gnunet-namestore", "WARNING", NULL);
664 GNUNET_PROGRAM_run (argc, argv, "gnunet-namestore",
665 _("GNUnet zone manipulation tool"),
673 /* end of gnunet-namestore.c */