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/*
This file is part of GNUnet.
(C) 2012 Christian Grothoff (and other contributing authors)
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 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.
*/
/**
* @file src/vpn/gnunet-vpn.c
* @brief Tool to manually request VPN tunnels to be created
* @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_vpn_service.h"
/**
* Handle to vpn service.
*/
static struct GNUNET_VPN_Handle *handle;
/**
* Opaque redirection request handle.
*/
static struct GNUNET_VPN_RedirectionRequest *request;
/**
* Option -p: destination peer identity for service
*/
static char *peer_id;
/**
* Option -s: service name (hash to get service descriptor)
*/
static char *service_name;
/**
* Option -i: target IP
*/
static char *target_ip;
/**
* Option -4: IPv4 requested.
*/
static int ipv4;
/**
* Option -6: IPv6 requested.
*/
static int ipv6;
/**
* Selected level of verbosity.
*/
static int verbosity;
/**
* Global return value.
*/
static int ret;
/**
* Shutdown.
*/
static void
do_disconnect (void *cls, const struct GNUNET_SCHEDULER_TaskContext *tc)
{
if (NULL != request)
{
GNUNET_VPN_cancel_request (request);
request = NULL;
}
if (NULL != handle)
{
GNUNET_VPN_disconnect (handle);
handle = NULL;
}
GNUNET_free_non_null (peer_id);
GNUNET_free_non_null (service_name);
GNUNET_free_non_null (target_ip);
}
/**
* Main function that will be run by the scheduler.
*
* @param cls closure
* @param args remaining command-line arguments
* @param cfgfile name of the configuration file used (for saving, can be NULL!)
* @param cfg configuration
*/
static void
run (void *cls, char *const *args, const char *cfgfile,
const struct GNUNET_CONFIGURATION_Handle *cfg)
{
handle = GNUNET_VPN_connect (cfg);
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
&do_disconnect, NULL);
}
int
main (int argc, char *const *argv)
{
static const struct GNUNET_GETOPT_CommandLineOption options[] = {
{'4', "ipv4", NULL,
gettext_noop ("request that result should be an IPv4 address"),
0, &GNUNET_GETOPT_set_one, &ipv4},
{'6', "ipv6", NULL,
gettext_noop ("request that result should be an IPv6 address"),
0, &GNUNET_GETOPT_set_one, &ipv6},
{'i', "ip", "IP",
gettext_noop ("destination IP for the tunnel"),
1, &GNUNET_GETOPT_set_string, &target_ip},
{'p', "peer", "PEERID",
gettext_noop ("peer offering the service we would like to access"),
1, &GNUNET_GETOPT_set_string, &peer_id},
{'s', "service", "NAME",
gettext_noop ("name of the service we would like to access"),
1, &GNUNET_GETOPT_set_string, &peer_id},
GNUNET_GETOPT_OPTION_VERBOSE (&verbosity),
GNUNET_GETOPT_OPTION_END
};
return (GNUNET_OK ==
GNUNET_PROGRAM_run (argc, argv, "gnunet-vpn",
gettext_noop
("Setup tunnels via VPN."), options,
&run, NULL)) ? ret : 1;
}
/* end of gnunet-vpn.c */
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