/*
This file is part of GNUnet.
- (C) 2012-2013 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2012-2013, 2017-2018 GNUnet e.V.
- GNUnet is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published
- by the Free Software Foundation; either version 3, or (at your
- option) any later version.
+ GNUnet is free software: you can redistribute it and/or modify it
+ under the terms of the GNU Affero General Public License as published
+ by the Free Software Foundation, either version 3 of the License,
+ or (at your option) any later version.
GNUnet is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- General Public License for more details.
+ Affero General Public License for more details.
- You should have received a copy of the GNU General Public License
- along with GNUnet; see the file COPYING. If not, write to the
- Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
+ You should have received a copy of the GNU Affero General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+ SPDX-License-Identifier: AGPL3.0-or-later
*/
/**
* @file gnunet-gns.c
#include "platform.h"
#include <gnunet_util_lib.h>
#include <gnunet_dnsparser_lib.h>
-#include <gnunet_identity_service.h>
#include <gnunet_gnsrecord_lib.h>
#include <gnunet_namestore_service.h>
#include <gnunet_gns_service.h>
*/
static struct GNUNET_GNS_Handle *gns;
-/**
- * Desired timeout for the lookup (default is no timeout).
- */
-static struct GNUNET_TIME_Relative timeout;
-
/**
* GNS name to lookup. (-u option)
*/
*/
static char *lookup_type;
-/**
- * Identity of the zone to use for the lookup (-z option)
- */
-static char *zone_ego_name;
-
-/**
- * Public key of the zone to use for the lookup (-p option)
- */
-static char *public_key;
-
-/**
- * Set to #GNUNET_YES if we must not use the DHT (only local lookup).
- */
-static int only_cached;
-
/**
* raw output
*/
static int raw;
/**
- * Requested record type.
+ * Desired record type.
*/
-static int rtype;
+static uint32_t rtype;
/**
* Handle to lookup request
*/
-static struct GNUNET_GNS_LookupRequest *lookup_request;
-
-/**
- * Lookup an ego with the identity service.
- */
-static struct GNUNET_IDENTITY_EgoLookup *el;
-
-/**
- * Handle for identity service.
- */
-static struct GNUNET_IDENTITY_Handle *identity;
+static struct GNUNET_GNS_LookupWithTldRequest *lr;
/**
- * Active operation on identity service.
+ * Global return value.
+ * 0 on success (default),
+ * 1 on internal failures
+ * 2 on launch failure,
+ * 4 if the name is not a GNS-supported TLD,
*/
-static struct GNUNET_IDENTITY_Operation *id_op;
+static int global_ret;
/**
* Task run on shutdown. Cleans up everything.
*
* @param cls unused
- * @param tc scheduler context
*/
static void
-do_shutdown (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+do_shutdown (void *cls)
{
- if (NULL != el)
- {
- GNUNET_IDENTITY_ego_lookup_cancel (el);
- el = NULL;
- }
- if (NULL != id_op)
- {
- GNUNET_IDENTITY_cancel (id_op);
- id_op = NULL;
- }
- if (NULL != lookup_request)
+ (void) cls;
+ if (NULL != lr)
{
- GNUNET_GNS_lookup_cancel (lookup_request);
- lookup_request = NULL;
- }
- if (NULL != identity)
- {
- GNUNET_IDENTITY_disconnect (identity);
- identity = NULL;
+ GNUNET_GNS_lookup_with_tld_cancel (lr);
+ lr = NULL;
}
if (NULL != gns)
{
* Function called with the result of a GNS lookup.
*
* @param cls the 'const char *' name that was resolved
+ * @param was_gns #GNUNET_NO if TLD did not indicate use of GNS
* @param rd_count number of records returned
* @param rd array of @a rd_count records with the results
*/
static void
-process_lookup_result (void *cls, uint32_t rd_count,
+process_lookup_result (void *cls,
+ int was_gns,
+ uint32_t rd_count,
const struct GNUNET_GNSRECORD_Data *rd)
{
const char *name = cls;
- uint32_t i;
const char *typename;
char* string_val;
- lookup_request = NULL;
- if (!raw)
+ lr = NULL;
+ if (GNUNET_NO == was_gns)
+ {
+ global_ret = 4; /* not for GNS */
+ GNUNET_SCHEDULER_shutdown ();
+ return;
+ }
+ if (! raw)
{
if (0 == rd_count)
printf ("No results.\n");
printf ("%s:\n",
name);
}
- for (i=0; i<rd_count; i++)
+ for (uint32_t i=0; i<rd_count; i++)
{
if ( (rd[i].record_type != rtype) &&
(GNUNET_GNSRECORD_TYPE_ANY != rtype) )
}
-/**
- * Perform the actual resolution, starting with the zone
- * identified by the given public key and the shorten zone.
- *
- * @param pkey public key to use for the zone, can be NULL
- * @param shorten_key private key used for shortening, can be NULL
- */
-static void
-lookup_with_keys (const struct GNUNET_CRYPTO_EcdsaPublicKey *pkey,
- const struct GNUNET_CRYPTO_EcdsaPrivateKey *shorten_key)
-{
- if (NULL != lookup_type)
- rtype = GNUNET_GNSRECORD_typename_to_number (lookup_type);
- else
- rtype = GNUNET_DNSPARSER_TYPE_A;
-
- if (NULL != lookup_name)
- {
- lookup_request = GNUNET_GNS_lookup (gns,
- lookup_name,
- pkey,
- rtype,
- only_cached,
- shorten_key,
- &process_lookup_result,
- lookup_name);
- }
- else
- {
- fprintf (stderr,
- _("Please specify name to lookup!\n"));
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
-}
-
-
-/**
- * Method called to with the ego we are to use for shortening
- * during the lookup.
- *
- * @param cls closure contains the public key to use
- * @param ego ego handle, NULL if not found
- * @param ctx context for application to store data for this ego
- * (during the lifetime of this process, initially NULL)
- * @param name name assigned by the user for this ego,
- * NULL if the user just deleted the ego and it
- * must thus no longer be used
- */
-static void
-identity_shorten_cb (void *cls,
- struct GNUNET_IDENTITY_Ego *ego,
- void **ctx,
- const char *name)
-{
- struct GNUNET_CRYPTO_EcdsaPublicKey *pkeym = cls;
-
- id_op = NULL;
- if (NULL == ego)
- lookup_with_keys (pkeym, NULL);
- else
- lookup_with_keys (pkeym,
- GNUNET_IDENTITY_ego_get_private_key (ego));
- GNUNET_free (pkeym);
-}
-
-
-/**
- * Perform the actual resolution, starting with the zone
- * identified by the given public key.
- *
- * @param pkey public key to use for the zone
- */
-static void
-lookup_with_public_key (const struct GNUNET_CRYPTO_EcdsaPublicKey *pkey)
-{
- struct GNUNET_CRYPTO_EcdsaPublicKey *pkeym;
-
- GNUNET_assert (NULL != pkey);
- pkeym = GNUNET_new (struct GNUNET_CRYPTO_EcdsaPublicKey);
- *pkeym = *pkey;
- GNUNET_break (NULL == id_op);
- id_op = GNUNET_IDENTITY_get (identity,
- "gns-short",
- &identity_shorten_cb,
- pkeym);
- if (NULL == id_op)
- {
- GNUNET_break (0);
- lookup_with_keys (pkey, NULL);
- }
-}
-
-
-/**
- * Method called to with the ego we are to use for the lookup,
- * when the ego is determined by a name.
- *
- * @param cls closure (NULL, unused)
- * @param ego ego handle, NULL if not found
- */
-static void
-identity_zone_cb (void *cls,
- const struct GNUNET_IDENTITY_Ego *ego)
-{
- struct GNUNET_CRYPTO_EcdsaPublicKey pkey;
-
- el = NULL;
- if (NULL == ego)
- {
- fprintf (stderr,
- _("Ego for `%s' not found, cannot perform lookup.\n"),
- zone_ego_name);
- GNUNET_SCHEDULER_shutdown ();
- }
- else
- {
- GNUNET_IDENTITY_ego_get_public_key (ego, &pkey);
- lookup_with_public_key (&pkey);
- }
- GNUNET_free_non_null (zone_ego_name);
- zone_ego_name = NULL;
-}
-
-
-/**
- * Method called to with the ego we are to use for the lookup,
- * when the ego is the one for the default master zone.
- *
- * @param cls closure (NULL, unused)
- * @param ego ego handle, NULL if not found
- * @param ctx context for application to store data for this ego
- * (during the lifetime of this process, initially NULL)
- * @param name name assigned by the user for this ego,
- * NULL if the user just deleted the ego and it
- * must thus no longer be used
- */
-static void
-identity_master_cb (void *cls,
- struct GNUNET_IDENTITY_Ego *ego,
- void **ctx,
- const char *name)
-{
- struct GNUNET_CRYPTO_EcdsaPublicKey pkey;
- const char *dot;
-
- id_op = NULL;
- if (NULL == ego)
- {
- fprintf (stderr,
- _("Ego for `gns-master' not found, cannot perform lookup. Did you run gnunet-gns-import.sh?\n"));
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
- GNUNET_IDENTITY_ego_get_public_key (ego, &pkey);
- /* if the name is of the form 'label.gnu', never go to the DHT */
- dot = NULL;
- if (NULL != lookup_name)
- dot = strchr (lookup_name, '.');
- if ( (NULL != dot) &&
- (0 == strcasecmp (dot, ".gnu")) )
- only_cached = GNUNET_YES;
- lookup_with_public_key (&pkey);
-}
-
-
/**
* Main function that will be run.
*
* @param c configuration
*/
static void
-run (void *cls, char *const *args, const char *cfgfile,
+run (void *cls,
+ char *const *args,
+ const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *c)
{
- struct GNUNET_CRYPTO_EcdsaPublicKey pkey;
+ (void) cls;
+ (void) args;
+ (void) cfgfile;
cfg = c;
gns = GNUNET_GNS_connect (cfg);
- identity = GNUNET_IDENTITY_connect (cfg, NULL, NULL);
if (NULL == gns)
{
fprintf (stderr,
_("Failed to connect to GNS\n"));
+ global_ret = 2;
return;
}
- GNUNET_SCHEDULER_add_delayed (timeout,
- &do_shutdown, NULL);
- if (NULL != public_key)
+ GNUNET_SCHEDULER_add_shutdown (&do_shutdown,
+ NULL);
+
+ if (NULL != lookup_type)
+ rtype = GNUNET_GNSRECORD_typename_to_number (lookup_type);
+ else
+ rtype = GNUNET_DNSPARSER_TYPE_A;
+ if (UINT32_MAX == rtype)
{
- if (GNUNET_OK !=
- GNUNET_CRYPTO_ecdsa_public_key_from_string (public_key,
- strlen (public_key),
- &pkey))
- {
- fprintf (stderr,
- _("Public key `%s' is not well-formed\n"),
- public_key);
- GNUNET_SCHEDULER_shutdown ();
- return;
- }
- lookup_with_public_key (&pkey);
- return;
+ fprintf (stderr,
+ _("Invalid typename specified, assuming `ANY'\n"));
+ rtype = GNUNET_GNSRECORD_TYPE_ANY;
}
- if (NULL != zone_ego_name)
+ lr = GNUNET_GNS_lookup_with_tld (gns,
+ lookup_name,
+ rtype,
+ GNUNET_GNS_LO_DEFAULT,
+ &process_lookup_result,
+ lookup_name);
+ if (NULL == lr)
{
- el = GNUNET_IDENTITY_ego_lookup (cfg,
- zone_ego_name,
- &identity_zone_cb,
- NULL);
+ global_ret = 2;
+ GNUNET_SCHEDULER_shutdown ();
return;
}
- if ( (NULL != lookup_name) &&
- (strlen (lookup_name) > 4) &&
- (0 == strcmp (".zkey",
- &lookup_name[strlen (lookup_name) - 4])) )
- {
- /* no zone required, use 'anonymous' zone */
- GNUNET_CRYPTO_ecdsa_key_get_public (GNUNET_CRYPTO_ecdsa_key_get_anonymous (),
- &pkey);
- lookup_with_public_key (&pkey);
- }
- else
- {
- GNUNET_break (NULL == id_op);
- id_op = GNUNET_IDENTITY_get (identity,
- "gns-master",
- &identity_master_cb,
- NULL);
- GNUNET_assert (NULL != id_op);
- }
}
* @return 0 ok, 1 on error
*/
int
-main (int argc, char *const *argv)
+main (int argc,
+ char *const *argv)
{
- static const struct GNUNET_GETOPT_CommandLineOption options[] = {
- {'u', "lookup", "NAME",
- gettext_noop ("Lookup a record for the given name"), 1,
- &GNUNET_GETOPT_set_string, &lookup_name},
- {'t', "type", "TYPE",
- gettext_noop ("Specify the type of the record to lookup"), 1,
- &GNUNET_GETOPT_set_string, &lookup_type},
- { 'T', "timeout", "DELAY",
- gettext_noop ("Specify timeout for the lookup"), 1,
- &GNUNET_GETOPT_set_relative_time, &timeout },
- {'r', "raw", NULL,
- gettext_noop ("No unneeded output"), 0,
- &GNUNET_GETOPT_set_one, &raw},
- {'p', "public-key", "PKEY",
- gettext_noop ("Specify the public key of the zone to lookup the record in"), 1,
- &GNUNET_GETOPT_set_string, &public_key},
- {'z', "zone", "NAME",
- gettext_noop ("Specify the name of the ego of the zone to lookup the record in"), 1,
- &GNUNET_GETOPT_set_string, &zone_ego_name},
+ struct GNUNET_GETOPT_CommandLineOption options[] = {
+ GNUNET_GETOPT_option_mandatory
+ (GNUNET_GETOPT_option_string ('u',
+ "lookup",
+ "NAME",
+ gettext_noop ("Lookup a record for the given name"),
+ &lookup_name)),
+ GNUNET_GETOPT_option_string ('t',
+ "type",
+ "TYPE",
+ gettext_noop ("Specify the type of the record to lookup"),
+ &lookup_type),
+ GNUNET_GETOPT_option_flag ('r',
+ "raw",
+ gettext_noop ("No unneeded output"),
+ &raw),
GNUNET_GETOPT_OPTION_END
};
int ret;
- timeout = GNUNET_TIME_UNIT_FOREVER_REL;
- if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
+ if (GNUNET_OK !=
+ GNUNET_STRINGS_get_utf8_args (argc, argv,
+ &argc, &argv))
return 2;
- GNUNET_log_setup ("gnunet-gns", "WARNING", NULL);
- ret =
- (GNUNET_OK ==
- GNUNET_PROGRAM_run (argc, argv, "gnunet-gns",
- _("GNUnet GNS resolver tool"),
- options,
- &run, NULL)) ? 0 : 1;
+ GNUNET_log_setup ("gnunet-gns",
+ "WARNING",
+ NULL);
+ ret = GNUNET_PROGRAM_run (argc, argv,
+ "gnunet-gns",
+ _("GNUnet GNS resolver tool"),
+ options,
+ &run, NULL);
GNUNET_free ((void*) argv);
- return ret;
+ if (GNUNET_OK != ret)
+ return 1;
+ return global_ret;
}
/* end of gnunet-gns.c */
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