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/* Initialization and finalization of the dynamic XAUTH module
* Copyright (C) 2006 Andreas Steffen
* Hochschule fuer Technik Rapperswil, Switzerland
*
* This program 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 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program 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.
*/
#include <dlfcn.h>
#include <freeswan.h>
#include "constants.h"
#include "defs.h"
#include "xauth.h"
#include "keys.h"
#include "log.h"
void
xauth_init(void)
{
#ifdef XAUTH_DEFAULT_LIB
xauth_module.handle = dlopen(XAUTH_DEFAULT_LIB, RTLD_NOW);
if (xauth_module.handle != NULL)
{
DBG(DBG_CONTROL,
DBG_log("xauth module '%s' loading'", XAUTH_DEFAULT_LIB)
)
xauth_module.get_secret = (bool (*) (const xauth_t*))
dlsym(xauth_module.handle, "get_secret");
DBG(DBG_CONTROL,
if (xauth_module.get_secret != NULL)
{
DBG_log("xauth module: found get_secret() function");
}
)
xauth_module.verify_secret = (bool (*) (const xauth_peer_t*, const xauth_t*))
dlsym(xauth_module.handle, "verify_secret");
DBG(DBG_CONTROL,
if (xauth_module.verify_secret != NULL)
{
DBG_log("xauth module: found verify_secret() function");
}
)
}
#endif
/* any null function pointers will be filled in by default functions */
xauth_defaults();
}
void
xauth_finalize(void)
{
#ifdef XAUTH_DEFAULT_LIB
if (xauth_module.handle != NULL)
{
if (dlclose(xauth_module.handle))
{
plog("failed to unload xauth module");
}
else
{
DBG(DBG_CONTROL,
DBG_log("xauth module unloaded")
)
}
}
#endif
}
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