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/*
This file is part of GNUnet.
(C) 2010,2011 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 transport/gnunet-service-transport-new.c
* @brief
* @author Christian Grothoff
*/
#include "platform.h"
#include "gnunet_util_lib.h"
#include "gnunet_statistics_service.h"
#include "gnunet_transport_service.h"
#include "gnunet_peerinfo_service.h"
#include "gnunet-service-transport.h"
#include "gnunet-service-transport_blacklist.h"
#include "gnunet-service-transport_clients.h"
#include "gnunet-service-transport_hello.h"
#include "gnunet-service-transport_neighbours.h"
#include "gnunet-service-transport_plugins.h"
#include "gnunet-service-transport_validation.h"
/* globals */
/**
* Statistics handle.
*/
struct GNUNET_STATISTICS_Handle *GST_stats;
/**
* Configuration handle.
*/
const struct GNUNET_CONFIGURATION_Handle *GST_cfg;
/**
* Configuration handle.
*/
struct GNUNET_PeerIdentity GST_my_identity;
/**
* Handle to peerinfo service.
*/
struct GNUNET_PEERINFO_Handle *GST_peerinfo;
/**
* Our public key.
*/
struct GNUNET_CRYPTO_RsaPublicKeyBinaryEncoded GST_my_public_key;
/**
* Our private key.
*/
static struct GNUNET_CRYPTO_RsaPrivateKey *my_private_key;
/**
* My HELLO has changed. Tell everyone who should know.
*
* @param cls unused
* @param hello new HELLO
*/
static void
process_hello_update (void *cls,
const struct GNUNET_MessageHeader *hello)
{
GST_clients_broadcast (hello, GNUNET_NO);
#if 0
GNUNET_CONTAINER_multihashmap_iterate (neighbours,
&transmit_our_hello_if_pong,
NULL);
#endif
}
/**
* Function that will be called for each address the transport
* is aware that it might be reachable under. Update our HELLO.
*
* @param cls name of the plugin (const char*)
* @param add_remove should the address added (YES) or removed (NO) from the
* set of valid addresses?
* @param addr one of the addresses of the host
* the specific address format depends on the transport
* @param addrlen length of the address
*/
static void
plugin_env_address_change_notification (void *cls,
int add_remove,
const void *addr,
size_t addrlen)
{
const char *plugin_name = cls;
GST_hello_modify_addresses (add_remove,
plugin_name,
addr,
addrlen);
}
/**
* Function called when the service shuts down. Unloads our plugins
* and cancels pending validations.
*
* @param cls closure, unused
* @param tc task context (unused)
*/
static void
shutdown_task (void *cls,
const struct GNUNET_SCHEDULER_TaskContext *tc)
{
GST_blacklist_stop ();
GST_plugins_unload ();
GST_hello_stop ();
if (GST_peerinfo != NULL)
{
GNUNET_PEERINFO_disconnect (GST_peerinfo);
GST_peerinfo = NULL;
}
if (GST_stats != NULL)
{
GNUNET_STATISTICS_destroy (GST_stats, GNUNET_NO);
GST_stats = NULL;
}
if (my_private_key != NULL)
{
GNUNET_CRYPTO_rsa_key_free (my_private_key);
my_private_key = NULL;
}
}
/**
* Initiate transport service.
*
* @param cls closure
* @param server the initialized server
* @param c configuration to use
*/
static void
run (void *cls,
struct GNUNET_SERVER_Handle *server,
const struct GNUNET_CONFIGURATION_Handle *c)
{
#if 0
static const struct GNUNET_SERVER_MessageHandler handlers[] = {
{NULL, NULL, 0, 0}
};
#endif
char *keyfile;
/* setup globals */
GST_cfg = c;
if (GNUNET_OK !=
GNUNET_CONFIGURATION_get_value_filename (c,
"GNUNETD",
"HOSTKEY", &keyfile))
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_
("Transport service is lacking key configuration settings. Exiting.\n"));
GNUNET_SCHEDULER_shutdown ();
return;
}
my_private_key = GNUNET_CRYPTO_rsa_key_create_from_file (keyfile);
GNUNET_free (keyfile);
if (my_private_key == NULL)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Transport service could not access hostkey. Exiting.\n"));
GNUNET_SCHEDULER_shutdown ();
return;
}
GST_stats = GNUNET_STATISTICS_create ("transport", c);
GST_peerinfo = GNUNET_PEERINFO_connect (c);
GNUNET_CRYPTO_rsa_key_get_public (my_private_key, &GST_my_public_key);
GNUNET_CRYPTO_hash (&GST_my_public_key,
sizeof (GST_my_public_key), &GST_my_identity.hashPubKey);
GNUNET_SCHEDULER_add_delayed (GNUNET_TIME_UNIT_FOREVER_REL,
&shutdown_task, NULL);
if (GST_peerinfo == NULL)
{
GNUNET_log (GNUNET_ERROR_TYPE_ERROR,
_("Could not access PEERINFO service. Exiting.\n"));
GNUNET_SCHEDULER_shutdown ();
return;
}
/* start subsystems */
GST_hello_start (&process_hello_update, NULL);
GST_blacklist_start (server);
GST_plugins_load (NULL, // FIXME...
&plugin_env_address_change_notification,
NULL, // FIXME...
NULL, // FIXME...
NULL); // FIXME...
}
/**
* The main function for the transport service.
*
* @param argc number of arguments from the command line
* @param argv command line arguments
* @return 0 ok, 1 on error
*/
int
main (int argc, char *const *argv)
{
return (GNUNET_OK ==
GNUNET_SERVICE_run (argc,
argv,
"transport",
GNUNET_SERVICE_OPTION_NONE,
&run, NULL)) ? 0 : 1;
}
/* end of file gnunet-service-transport-new.c */
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