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/*
* Copyright (C) 2009 Tobias Brunner
* Copyright (C) 2008 Martin Willi
* Hochschule fuer Technik Rapperswil
*
* 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 "library.h"
#include <stdlib.h>
#include <debug.h>
#include <threading/thread.h>
#include <utils/identification.h>
#include <utils/host.h>
#include <utils/hashtable.h>
#include <selectors/traffic_selector.h>
#define CHECKSUM_LIBRARY IPSEC_LIB_DIR"/libchecksum.so"
typedef struct private_library_t private_library_t;
/**
* private data of library
*/
struct private_library_t {
/**
* public functions
*/
library_t public;
/**
* Hashtable with registered objects (name => object)
*/
hashtable_t *objects;
};
/**
* library instance
*/
library_t *lib;
/**
* Deinitialize library
*/
void library_deinit()
{
private_library_t *this = (private_library_t*)lib;
bool detailed;
detailed = lib->settings->get_bool(lib->settings,
"libstrongswan.leak_detective.detailed", TRUE);
this->public.scheduler->destroy(this->public.scheduler);
this->public.processor->destroy(this->public.processor);
this->public.plugins->destroy(this->public.plugins);
this->public.settings->destroy(this->public.settings);
this->public.credmgr->destroy(this->public.credmgr);
this->public.creds->destroy(this->public.creds);
this->public.encoding->destroy(this->public.encoding);
this->public.crypto->destroy(this->public.crypto);
this->public.fetcher->destroy(this->public.fetcher);
this->public.db->destroy(this->public.db);
this->public.printf_hook->destroy(this->public.printf_hook);
this->objects->destroy(this->objects);
if (this->public.integrity)
{
this->public.integrity->destroy(this->public.integrity);
}
if (lib->leak_detective)
{
lib->leak_detective->report(lib->leak_detective, detailed);
lib->leak_detective->destroy(lib->leak_detective);
}
threads_deinit();
free(this);
lib = NULL;
}
METHOD(library_t, get, void*,
private_library_t *this, char *name)
{
return this->objects->get(this->objects, name);
}
METHOD(library_t, set, bool,
private_library_t *this, char *name, void *object)
{
if (object)
{
if (this->objects->get(this->objects, name))
{
return FALSE;
}
this->objects->put(this->objects, name, object);
return TRUE;
}
return this->objects->remove(this->objects, name) != NULL;
}
/**
* Hashtable hash function
*/
static u_int hash(char *key)
{
return chunk_hash(chunk_create(key, strlen(key)));
}
/**
* Hashtable equals function
*/
static bool equals(char *a, char *b)
{
return streq(a, b);
}
/*
* see header file
*/
bool library_init(char *settings)
{
private_library_t *this;
printf_hook_t *pfh;
INIT(this,
.public = {
.get = _get,
.set = _set,
},
);
lib = &this->public;
threads_init();
#ifdef LEAK_DETECTIVE
lib->leak_detective = leak_detective_create();
#endif /* LEAK_DETECTIVE */
pfh = printf_hook_create();
this->public.printf_hook = pfh;
pfh->add_handler(pfh, 'b', mem_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_INT,
PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'B', chunk_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'H', host_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'N', enum_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_INT,
PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'T', time_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_INT,
PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'V', time_delta_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_POINTER,
PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'Y', identification_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
pfh->add_handler(pfh, 'R', traffic_selector_printf_hook,
PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
this->objects = hashtable_create((hashtable_hash_t)hash,
(hashtable_equals_t)equals, 4);
this->public.settings = settings_create(settings);
this->public.crypto = crypto_factory_create();
this->public.creds = credential_factory_create();
this->public.credmgr = credential_manager_create();
this->public.encoding = cred_encoding_create();
this->public.fetcher = fetcher_manager_create();
this->public.db = database_factory_create();
this->public.processor = processor_create();
this->public.scheduler = scheduler_create();
this->public.plugins = plugin_loader_create();
if (lib->settings->get_bool(lib->settings,
"libstrongswan.integrity_test", FALSE))
{
#ifdef INTEGRITY_TEST
this->public.integrity = integrity_checker_create(CHECKSUM_LIBRARY);
if (!lib->integrity->check(lib->integrity, "libstrongswan", library_init))
{
DBG1(DBG_LIB, "integrity check of libstrongswan failed");
return FALSE;
}
#else /* !INTEGRITY_TEST */
DBG1(DBG_LIB, "integrity test enabled, but not supported");
return FALSE;
#endif /* INTEGRITY_TEST */
}
return TRUE;
}
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