/*
This file is part of GNUnet.
- (C) 2013 Christian Grothoff (and other contributing authors)
+ Copyright (C) 2013 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.
-
- 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.
+ Affero General Public License for more details.
+
+ 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/>.
*/
/**
* @file identity/gnunet-identity.c
- * @brief IDENTITY monitoring command line tool
+ * @brief IDENTITY management command line tool
* @author Christian Grothoff
+ *
+ * Todo:
+ * - add options to get default egos
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_identity_service.h"
+
+/**
+ * Return value from main on timeout.
+ */
+#define TIMEOUT_STATUS_CODE 40
+
/**
* Handle to IDENTITY service.
*/
static struct GNUNET_IDENTITY_Handle *sh;
/**
- * Was verbose specified?
+ * Was "list" specified?
+ */
+static int list;
+
+/**
+ * Was "monitor" specified?
+ */
+static int monitor;
+
+/**
+ * -C option
+ */
+static char *create_ego;
+
+/**
+ * -D option
+ */
+static char *delete_ego;
+
+/**
+ * -s option.
+ */
+static char *set_ego;
+
+/**
+ * -S option.
+ */
+static char *set_subsystem;
+
+/**
+ * Operation handle for set operation.
+ */
+static struct GNUNET_IDENTITY_Operation *set_op;
+
+/**
+ * Handle for create operation.
+ */
+static struct GNUNET_IDENTITY_Operation *create_op;
+
+/**
+ * Handle for delete operation.
+ */
+static struct GNUNET_IDENTITY_Operation *delete_op;
+
+/**
+ * Value to return from #main().
*/
-static int verbose;
+static int global_ret;
/**
* Task run on shutdown.
*
* @param cls NULL
- * @param tc unused
*/
static void
-shutdown_task (void *cls,
- const struct GNUNET_SCHEDULER_TaskContext *tc)
+shutdown_task (void *cls)
{
+ if (NULL != set_op)
+ {
+ GNUNET_IDENTITY_cancel (set_op);
+ set_op = NULL;
+ }
+ if (NULL != create_op)
+ {
+ GNUNET_IDENTITY_cancel (create_op);
+ create_op = NULL;
+ }
+ if (NULL != delete_op)
+ {
+ GNUNET_IDENTITY_cancel (delete_op);
+ delete_op = NULL;
+ }
GNUNET_IDENTITY_disconnect (sh);
sh = NULL;
}
+/**
+ * Test if we are finished yet.
+ */
+static void
+test_finished ()
+{
+ if ( (NULL == create_op) &&
+ (NULL == delete_op) &&
+ (NULL == set_op) &&
+ (NULL == set_ego) &&
+ (! list) &&
+ (! monitor) )
+ {
+ if (TIMEOUT_STATUS_CODE == global_ret)
+ global_ret = 0;
+ GNUNET_SCHEDULER_shutdown ();
+ }
+}
+
+
+/**
+ * Deletion operation finished.
+ *
+ * @param cls pointer to operation handle
+ * @param emsg NULL on success, otherwise an error message
+ */
+static void
+delete_finished (void *cls,
+ const char *emsg)
+{
+ struct GNUNET_IDENTITY_Operation **op = cls;
+
+ *op = NULL;
+ if (NULL != emsg)
+ fprintf (stderr,
+ "%s\n",
+ gettext (emsg));
+ test_finished ();
+}
+
+
+/**
+ * Creation operation finished.
+ *
+ * @param cls pointer to operation handle
+ * @param emsg error message, NULL on success
+ */
+static void
+create_finished (void *cls,
+ const char *emsg)
+{
+ struct GNUNET_IDENTITY_Operation **op = cls;
+
+ *op = NULL;
+ if (NULL != emsg)
+ {
+ fprintf (stderr,
+ _("Failed to create ego: %s\n"),
+ emsg);
+ global_ret = 1;
+ }
+ test_finished ();
+}
+
+
+/**
+ * Function called by #GNUNET_IDENTITY_set up on completion.
+ *
+ * @param cls NULL
+ * @param emsg error message (NULL on success)
+ */
+static void
+set_done (void *cls,
+ const char *emsg)
+{
+ set_op = NULL;
+ if (NULL != emsg)
+ {
+ fprintf (stderr,
+ _("Failed to set default ego: %s\n"),
+ emsg);
+ global_ret = 1;
+ }
+ test_finished ();
+}
+
+
+/**
+ * If listing is enabled, prints information about the egos.
+ *
+ * This function is initially called for all egos and then again
+ * whenever a ego's identifier changes or if it is deleted. At the
+ * end of the initial pass over all egos, the function is once called
+ * with 'NULL' for 'ego'. That does NOT mean that the callback won't
+ * be invoked in the future or that there was an error.
+ *
+ * When used with 'GNUNET_IDENTITY_create' or 'GNUNET_IDENTITY_get',
+ * this function is only called ONCE, and 'NULL' being passed in
+ * 'ego' does indicate an error (i.e. name is taken or no default
+ * value is known). If 'ego' is non-NULL and if '*ctx'
+ * is set in those callbacks, the value WILL be passed to a subsequent
+ * call to the identity callback of 'GNUNET_IDENTITY_connect' (if
+ * that one was not NULL).
+ *
+ * When an identity is renamed, this function is called with the
+ * (known) ego but the NEW identifier.
+ *
+ * When an identity is deleted, this function is called with the
+ * (known) ego and "NULL" for the 'identifier'. In this case,
+ * the 'ego' is henceforth invalid (and the 'ctx' should also be
+ * cleaned up).
+ *
+ * @param cls closure
+ * @param ego ego handle
+ * @param ctx context for application to store data for this ego
+ * (during the lifetime of this process, initially NULL)
+ * @param identifier identifier 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
+print_ego (void *cls,
+ struct GNUNET_IDENTITY_Ego *ego,
+ void **ctx,
+ const char *identifier)
+{
+ struct GNUNET_CRYPTO_EcdsaPublicKey pk;
+ char *s;
+
+ if ( (NULL != set_ego) &&
+ (NULL != ego) &&
+ (NULL != identifier) &&
+ (0 == strcmp (identifier,
+ set_ego)) )
+ {
+ set_op = GNUNET_IDENTITY_set (sh,
+ set_subsystem,
+ ego,
+ &set_done,
+ NULL);
+ GNUNET_free (set_subsystem);
+ set_subsystem = NULL;
+ GNUNET_free (set_ego);
+ set_ego = NULL;
+ }
+ if ( (NULL == ego) &&
+ (NULL != set_ego) )
+ {
+ fprintf (stderr,
+ "Could not set ego to `%s' for subsystem `%s', ego not known\n",
+ set_ego,
+ set_subsystem);
+ GNUNET_free (set_subsystem);
+ set_subsystem = NULL;
+ GNUNET_free (set_ego);
+ set_ego = NULL;
+ }
+ if ( (NULL == ego) && (! monitor) )
+ {
+ list = 0;
+ test_finished ();
+ return;
+ }
+ if (! (list | monitor))
+ return;
+ if (NULL == ego)
+ return;
+ GNUNET_IDENTITY_ego_get_public_key (ego,
+ &pk);
+ s = GNUNET_CRYPTO_ecdsa_public_key_to_string (&pk);
+ if ( (monitor) ||
+ (NULL != identifier) )
+ fprintf (stdout,
+ "%s - %s\n",
+ identifier,
+ s);
+ GNUNET_free (s);
+}
+
+
/**
* Main function that will be run by the scheduler.
*
* @param cfg 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 *cfg)
{
- sh = GNUNET_IDENTITY_connect (cfg, NULL, NULL);
- GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
- &shutdown_task, NULL);
+ if ( (NULL == set_subsystem) ^
+ (NULL == set_ego) )
+ {
+ fprintf (stderr,
+ "Options -e and -s must always be specified together\n");
+ return;
+ }
+ sh = GNUNET_IDENTITY_connect (cfg,
+ &print_ego,
+ NULL);
+ if (NULL != delete_ego)
+ delete_op = GNUNET_IDENTITY_delete (sh,
+ delete_ego,
+ &delete_finished,
+ &delete_op);
+ if (NULL != create_ego)
+ create_op = GNUNET_IDENTITY_create (sh,
+ create_ego,
+ &create_finished,
+ &create_op);
+ GNUNET_SCHEDULER_add_shutdown (&shutdown_task,
+ NULL);
+ test_finished ();
}
int
main (int argc, char *const *argv)
{
- int res;
+ struct GNUNET_GETOPT_CommandLineOption options[] = {
+ GNUNET_GETOPT_option_string ('C',
+ "create",
+ "NAME",
+ gettext_noop ("create ego NAME"),
+ &create_ego),
+
+ GNUNET_GETOPT_option_string ('D',
+ "delete",
+ "NAME",
+ gettext_noop ("delete ego NAME "),
+ &delete_ego),
+
+ GNUNET_GETOPT_option_flag ('d',
+ "display",
+ gettext_noop ("display all egos"),
+ &list),
+
+ GNUNET_GETOPT_option_string ('e',
+ "ego",
+ "NAME",
+ gettext_noop ("set default identity to EGO for a subsystem SUBSYSTEM (use together with -s)"),
+ &set_ego),
+
+ GNUNET_GETOPT_option_flag ('m',
+ "monitor",
+ gettext_noop ("run in monitor mode egos"),
+ &monitor),
+
+ GNUNET_GETOPT_option_string ('s',
+ "set",
+ "SUBSYSTEM",
+ gettext_noop ("set default identity to EGO for a subsystem SUBSYSTEM (use together with -e)"),
+ &set_subsystem),
- static const struct GNUNET_GETOPT_CommandLineOption options[] = {
- {'V', "verbose", NULL,
- gettext_noop ("verbose output"),
- 0, &GNUNET_GETOPT_set_one, &verbose},
GNUNET_GETOPT_OPTION_END
};
+ int res;
- if (GNUNET_OK != GNUNET_STRINGS_get_utf8_args (argc, argv, &argc, &argv))
- return 2;
-
- res = GNUNET_PROGRAM_run (argc, argv, "gnunet-identity",
- gettext_noop ("Print information about IDENTITY state"),
+ if (GNUNET_OK !=
+ GNUNET_STRINGS_get_utf8_args (argc, argv,
+ &argc, &argv))
+ return 4;
+ global_ret = TIMEOUT_STATUS_CODE; /* timeout */
+ res = GNUNET_PROGRAM_run (argc, argv,
+ "gnunet-identity",
+ gettext_noop ("Maintain egos"),
options, &run,
NULL);
GNUNET_free ((void *) argv);
if (GNUNET_OK != res)
- return 1;
- return 0;
+ return 3;
+ return global_ret;
}
/* end of gnunet-identity.c */
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