[thirdparty/strongswan.git] / src / libstrongswan / library.c

/*
 * Copyright (C) 2009-2018 Tobias Brunner
 * Copyright (C) 2008 Martin Willi
 * HSR 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 <utils/debug.h>
#include <threading/thread.h>
#include <utils/identification.h>
#include <networking/host.h>
#include <collections/array.h>
#include <collections/hashtable.h>
#include <utils/backtrace.h>
#include <selectors/traffic_selector.h>
#include <crypto/proposal/proposal.h>

#define CHECKSUM_LIBRARY IPSEC_LIB_DIR"/libchecksum.so"

#ifndef STRONGSWAN_CONF
#define STRONGSWAN_CONF NULL
#endif

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;

	/**
	 * Integrity check failed?
	 */
	bool init_failed;

#ifdef LEAK_DETECTIVE
	/**
	 * Where to write leak detective output to
	 */
	FILE *ld_out;
#endif

	/**
	 * Number of times we have been initialized
	 */
	refcount_t ref;
};

#define MAX_NAMESPACES 5

/**
 * Additional namespaces registered using __attribute__((constructor))
 */
static char *namespaces[MAX_NAMESPACES];
static int ns_count;

/**
 * Described in header
 */
void library_add_namespace(char *ns)
{
	if (ns_count < MAX_NAMESPACES - 1)
	{
		namespaces[ns_count] = ns;
		ns_count++;
	}
	else
	{
		fprintf(stderr, "failed to register additional namespace alias, please "
				"increase MAX_NAMESPACES");
	}
}

/**
 * Register plugins if built statically
 */
#ifdef STATIC_PLUGIN_CONSTRUCTORS
#include "plugin_constructors.c"
#endif

/**
 * library instance
 */
library_t *lib = NULL;

#ifdef LEAK_DETECTIVE
/**
 * Default leak report callback
 */
CALLBACK(report_leaks, void,
	private_library_t *this, int count, size_t bytes, backtrace_t *bt,
	bool detailed)
{
	fprintf(this->ld_out, "%zu bytes total, %d allocations, %zu bytes average:\n",
			bytes, count, bytes / count);
	bt->log(bt, this->ld_out, detailed);
}

/**
 * Default leak report summary callback
 */
CALLBACK(sum_leaks, void,
	private_library_t *this, int count, size_t bytes, int whitelisted)
{
	switch (count)
	{
		case 0:
			fprintf(this->ld_out, "No leaks detected");
			break;
		case 1:
			fprintf(this->ld_out, "One leak detected");
			break;
		default:
			fprintf(this->ld_out, "%d leaks detected, %zu bytes", count, bytes);
			break;
	}
	fprintf(this->ld_out, ", %d suppressed by whitelist\n", whitelisted);
}
#endif /* LEAK_DETECTIVE */

/**
 * Deinitialize library
 */
void library_deinit()
{
	private_library_t *this = (private_library_t*)lib;
	bool detailed;

	if (!this || !ref_put(&this->ref))
	{	/* have more users */
		return;
	}

	detailed = lib->settings->get_bool(lib->settings,
								"%s.leak_detective.detailed", TRUE, lib->ns);

	/* make sure the cache is clear before unloading plugins */
	lib->credmgr->flush_cache(lib->credmgr, CERT_ANY);

	this->public.streams->destroy(this->public.streams);
	this->public.watcher->destroy(this->public.watcher);
	this->public.scheduler->destroy(this->public.scheduler);
	this->public.processor->destroy(this->public.processor);
	this->public.plugins->destroy(this->public.plugins);
	this->public.hosts->destroy(this->public.hosts);
	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.caps->destroy(this->public.caps);
	this->public.proposal->destroy(this->public.proposal);
	this->public.fetcher->destroy(this->public.fetcher);
	this->public.resolver->destroy(this->public.resolver);
	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);
		lib->leak_detective = NULL;
	}
#ifdef LEAK_DETECTIVE
	if (this->ld_out && this->ld_out != stderr)
	{
		fclose(this->ld_out);
	}
#endif /* LEAK_DETECTIVE */

	backtrace_deinit();
	arrays_deinit();
	utils_deinit();
	threads_deinit();

	free(this->public.conf);
	free((void*)this->public.ns);
	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);
}

/**
 * Number of words we write and memwipe() in memwipe check
 */
#define MEMWIPE_WIPE_WORDS 16

#ifndef NO_CHECK_MEMWIPE

/**
 * Write magic to memory, and try to clear it with memwipe()
 */
__attribute__((noinline))
static void do_magic(int *magic, int **out)
{
	int buf[MEMWIPE_WIPE_WORDS], i;

	*out = buf;
	for (i = 0; i < countof(buf); i++)
	{
		buf[i] = *magic;
	}
	/* passing buf to dbg should make sure the compiler can't optimize out buf.
	 * we use directly dbg(3), as DBG3() might be stripped with DEBUG_LEVEL. */
	dbg(DBG_LIB, 3, "memwipe() pre: %b", buf, sizeof(buf));
	memwipe(buf, sizeof(buf));
}

/**
 * Check if memwipe works as expected
 */
static bool check_memwipe()
{
	int magic = 0xCAFEBABE, *buf, i;

	do_magic(&magic, &buf);

	for (i = 0; i < MEMWIPE_WIPE_WORDS; i++)
	{
		if (buf[i] == magic)
		{
			DBG1(DBG_LIB, "memwipe() check failed: stackdir: %b",
				 buf, MEMWIPE_WIPE_WORDS * sizeof(int));
			return FALSE;
		}
	}
	return TRUE;
}

#endif

/*
 * see header file
 */
bool library_init(char *settings, const char *namespace)
{
	private_library_t *this;
	printf_hook_t *pfh;
	int i;

	if (lib)
	{	/* already initialized, increase refcount */
		this = (private_library_t*)lib;
		ref_get(&this->ref);
		return !this->init_failed;
	}

	chunk_hash_seed();

	INIT(this,
		.public = {
			.get = _get,
			.set = _set,
			.ns = strdup(namespace ?: "libstrongswan"),
			.conf = strdupnull(settings ?: (getenv("STRONGSWAN_CONF") ?: STRONGSWAN_CONF)),
		},
		.ref = 1,
	);
	lib = &this->public;

	threads_init();
	utils_init();
	arrays_init();
	backtrace_init();

#ifdef LEAK_DETECTIVE
	{
		FILE *out = NULL;
		char *log;

		log = getenv("LEAK_DETECTIVE_LOG");
		if (log)
		{
			out = fopen(log, "a");
		}
		this->ld_out = out ?: stderr;
	}
	lib->leak_detective = leak_detective_create();
	if (lib->leak_detective)
	{
		lib->leak_detective->set_report_cb(lib->leak_detective,
										   report_leaks, sum_leaks, this);
	}
#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);
	pfh->add_handler(pfh, 'P', proposal_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(NULL);
	if (!this->public.settings->load_files(this->public.settings,
										   this->public.conf, FALSE))
	{
		DBG1(DBG_LIB, "abort initialization due to invalid configuration");
		this->init_failed = TRUE;
	}

	/* add registered aliases */
	for (i = 0; i < ns_count; ++i)
	{
		lib->settings->add_fallback(lib->settings, lib->ns, namespaces[i]);
	}
	/* all namespace settings may fall back to libstrongswan */
	lib->settings->add_fallback(lib->settings, lib->ns, "libstrongswan");

	this->public.hosts = host_resolver_create();
	this->public.proposal = proposal_keywords_create();
	this->public.caps = capabilities_create();
	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.resolver = resolver_manager_create();
	this->public.db = database_factory_create();
	this->public.processor = processor_create();
	this->public.scheduler = scheduler_create();
	this->public.watcher = watcher_create();
	this->public.streams = stream_manager_create();
	this->public.plugins = plugin_loader_create();

#ifndef NO_CHECK_MEMWIPE
	if (!check_memwipe())
	{
		return FALSE;
	}
#endif

	if (lib->settings->get_bool(lib->settings,
								"%s.integrity_test", FALSE, lib->ns))
	{
#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");
			this->init_failed = TRUE;
		}
#else /* !INTEGRITY_TEST */
		DBG1(DBG_LIB, "integrity test enabled, but not supported");
		this->init_failed = TRUE;
#endif /* INTEGRITY_TEST */
	}

	diffie_hellman_init();

	return !this->init_failed;
}
Commit	Line	Data
6b3292da	1	/*
f6b4ba2a	2	* Copyright (C) 2009-2018 Tobias Brunner
552cc11b	3	* Copyright (C) 2008 Martin Willi
1b671669	4	* HSR Hochschule fuer Technik Rapperswil
6b3292da MW	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; either version 2 of the License, or (at your
	9	* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
	10	*
	11	* This program is distributed in the hope that it will be useful, but
	12	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	13	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	14	* for more details.
	15	*/
	16
60356f33	17	#include "library.h"
6b3292da	18
552cc11b	19	#include <stdlib.h>
db7ef624	20
f05b4272	21	#include <utils/debug.h>
5493ffde MW	22	#include <threading/thread.h>
5493ffde MW	23	#include <utils/identification.h>
2e7cc07e	24	#include <networking/host.h>
b3613c49	25	#include <collections/array.h>
12642a68	26	#include <collections/hashtable.h>
4c6c9346	27	#include <utils/backtrace.h>
5493ffde	28	#include <selectors/traffic_selector.h>
2307bffe	29	#include <crypto/proposal/proposal.h>
db7ef624	30
60d62b9e	31	#define CHECKSUM_LIBRARY IPSEC_LIB_DIR"/libchecksum.so"
0179d468	32
9e783f6e MW	33	#ifndef STRONGSWAN_CONF
	34	#define STRONGSWAN_CONF NULL
	35	#endif
	36
552cc11b	37	typedef struct private_library_t private_library_t;
db7ef624	38
f27f6296	39	/**
552cc11b	40	* private data of library
f27f6296	41	*/
552cc11b	42	struct private_library_t {
f27f6296	43
552cc11b MW	44	/**
	45	* public functions
	46	*/
	47	library_t public;
2ce569cc MW	48
	49	/**
	50	* Hashtable with registered objects (name => object)
	51	*/
	52	hashtable_t *objects;
1e5e1fb6 MW	53
	54	/**
	55	* Integrity check failed?
	56	*/
f6b4ba2a	57	bool init_failed;
1e5e1fb6	58
4f1c6bc5 TB	59	#ifdef LEAK_DETECTIVE
	60	/**
	61	* Where to write leak detective output to
	62	*/
	63	FILE *ld_out;
	64	#endif
	65
1e5e1fb6 MW	66	/**
	67	* Number of times we have been initialized
	68	*/
	69	refcount_t ref;
552cc11b	70	};
60356f33	71
5c8dc908 TB	72	#define MAX_NAMESPACES 5
	73
	74	/**
b3ab7a48	75	* Additional namespaces registered using __attribute__((constructor))
5c8dc908 TB	76	*/
	77	static char *namespaces[MAX_NAMESPACES];
	78	static int ns_count;
	79
	80	/**
	81	* Described in header
	82	*/
	83	void library_add_namespace(char *ns)
	84	{
	85	if (ns_count < MAX_NAMESPACES - 1)
	86	{
	87	namespaces[ns_count] = ns;
	88	ns_count++;
	89	}
	90	else
	91	{
	92	fprintf(stderr, "failed to register additional namespace alias, please "
	93	"increase MAX_NAMESPACES");
	94	}
	95	}
	96
4a0b6d65 TB	97	/**
	98	* Register plugins if built statically
	99	*/
	100	#ifdef STATIC_PLUGIN_CONSTRUCTORS
	101	#include "plugin_constructors.c"
	102	#endif
	103
db7ef624	104	/**
552cc11b	105	* library instance
db7ef624	106	*/
1e5e1fb6	107	library_t *lib = NULL;
db7ef624	108
a426851f MW	109	#ifdef LEAK_DETECTIVE
	110	/**
	111	* Default leak report callback
	112	*/
4f1c6bc5 TB	113	CALLBACK(report_leaks, void,
	114	private_library_t this, int count, size_t bytes, backtrace_t bt,
	115	bool detailed)
a426851f	116	{
4f1c6bc5	117	fprintf(this->ld_out, "%zu bytes total, %d allocations, %zu bytes average:\n",
a426851f	118	bytes, count, bytes / count);
4f1c6bc5	119	bt->log(bt, this->ld_out, detailed);
a426851f MW	120	}
	121
	122	/**
	123	* Default leak report summary callback
	124	*/
4f1c6bc5 TB	125	CALLBACK(sum_leaks, void,
4f1c6bc5 TB	126	private_library_t *this, int count, size_t bytes, int whitelisted)
a426851f MW	127	{
	128	switch (count)
	129	{
	130	case 0:
4f1c6bc5	131	fprintf(this->ld_out, "No leaks detected");
a426851f MW	132	break;
a426851f MW	133	case 1:
4f1c6bc5	134	fprintf(this->ld_out, "One leak detected");
a426851f MW	135	break;
a426851f MW	136	default:
4f1c6bc5	137	fprintf(this->ld_out, "%d leaks detected, %zu bytes", count, bytes);
a426851f MW	138	break;
a426851f MW	139	}
4f1c6bc5	140	fprintf(this->ld_out, ", %d suppressed by whitelist\n", whitelisted);
a426851f MW	141	}
	142	#endif /* LEAK_DETECTIVE */
	143
db7ef624	144	/**
2ce569cc	145	* Deinitialize library
db7ef624	146	*/
552cc11b	147	void library_deinit()
db7ef624	148	{
552cc11b	149	private_library_t this = (private_library_t)lib;
091d1780 MW	150	bool detailed;
091d1780 MW	151
1e5e1fb6 MW	152	if (!this \|\| !ref_put(&this->ref))
	153	{ /* have more users */
	154	return;
	155	}
	156
091d1780	157	detailed = lib->settings->get_bool(lib->settings,
8dc6e716	158	"%s.leak_detective.detailed", TRUE, lib->ns);
552cc11b	159
a5951a28 TB	160	/* make sure the cache is clear before unloading plugins */
	161	lib->credmgr->flush_cache(lib->credmgr, CERT_ANY);
	162
2ba27601	163	this->public.streams->destroy(this->public.streams);
32b2a5e0	164	this->public.watcher->destroy(this->public.watcher);
e18556e9 TB	165	this->public.scheduler->destroy(this->public.scheduler);
e18556e9 TB	166	this->public.processor->destroy(this->public.processor);
552cc11b	167	this->public.plugins->destroy(this->public.plugins);
292d8f41	168	this->public.hosts->destroy(this->public.hosts);
552cc11b	169	this->public.settings->destroy(this->public.settings);
2ccc02a4	170	this->public.credmgr->destroy(this->public.credmgr);
552cc11b	171	this->public.creds->destroy(this->public.creds);
d9b24887	172	this->public.encoding->destroy(this->public.encoding);
552cc11b	173	this->public.crypto->destroy(this->public.crypto);
a2eb5817	174	this->public.caps->destroy(this->public.caps);
4c57c630	175	this->public.proposal->destroy(this->public.proposal);
552cc11b	176	this->public.fetcher->destroy(this->public.fetcher);
b1505b34	177	this->public.resolver->destroy(this->public.resolver);
552cc11b MW	178	this->public.db->destroy(this->public.db);
552cc11b MW	179	this->public.printf_hook->destroy(this->public.printf_hook);
8fde0b66	180	this->objects->destroy(this->objects);
960e0c10 MW	181	if (this->public.integrity)
	182	{
	183	this->public.integrity->destroy(this->public.integrity);
	184	}
7daf5226	185
f37e8252	186	if (lib->leak_detective)
db7ef624	187	{
f37e8252 MW	188	lib->leak_detective->report(lib->leak_detective, detailed);
f37e8252 MW	189	lib->leak_detective->destroy(lib->leak_detective);
965e846c	190	lib->leak_detective = NULL;
db7ef624	191	}
e9e643b2	192	#ifdef LEAK_DETECTIVE
4f1c6bc5 TB	193	if (this->ld_out && this->ld_out != stderr)
	194	{
	195	fclose(this->ld_out);
	196	}
	197	#endif /* LEAK_DETECTIVE */
4a5a5dd2	198
4c6c9346	199	backtrace_deinit();
965e846c	200	arrays_deinit();
87a79e6a	201	utils_deinit();
965e846c	202	threads_deinit();
4a5a5dd2	203
9e783f6e	204	free(this->public.conf);
34d3bfcf	205	free((void*)this->public.ns);
552cc11b MW	206	free(this);
552cc11b MW	207	lib = NULL;
db7ef624 MW	208	}
db7ef624 MW	209
2ce569cc MW	210	METHOD(library_t, get, void*,
	211	private_library_t this, char name)
	212	{
	213	return this->objects->get(this->objects, name);
	214	}
	215
	216	METHOD(library_t, set, bool,
	217	private_library_t this, char name, void *object)
	218	{
	219	if (object)
	220	{
	221	if (this->objects->get(this->objects, name))
	222	{
	223	return FALSE;
	224	}
	225	this->objects->put(this->objects, name, object);
	226	return TRUE;
	227	}
	228	return this->objects->remove(this->objects, name) != NULL;
	229	}
	230
	231	/**
	232	* Hashtable hash function
	233	*/
	234	static u_int hash(char *key)
	235	{
	236	return chunk_hash(chunk_create(key, strlen(key)));
	237	}
	238
	239	/**
	240	* Hashtable equals function
	241	*/
	242	static bool equals(char a, char b)
	243	{
	244	return streq(a, b);
	245	}
	246
1657b4ef MW	247	/**
	248	* Number of words we write and memwipe() in memwipe check
	249	*/
	250	#define MEMWIPE_WIPE_WORDS 16
	251
98b55c8b TB	252	#ifndef NO_CHECK_MEMWIPE
98b55c8b TB	253
e6ba688a MW	254	/**
	255	* Write magic to memory, and try to clear it with memwipe()
	256	*/
	257	__attribute__((noinline))
bc1c92c9	258	static void do_magic(int magic, int *out)
e6ba688a	259	{
1657b4ef	260	int buf[MEMWIPE_WIPE_WORDS], i;
e6ba688a	261
bc1c92c9	262	*out = buf;
e6ba688a MW	263	for (i = 0; i < countof(buf); i++)
e6ba688a MW	264	{
9312fbc7	265	buf[i] = *magic;
e6ba688a MW	266	}
	267	/* passing buf to dbg should make sure the compiler can't optimize out buf.
	268	* we use directly dbg(3), as DBG3() might be stripped with DEBUG_LEVEL. */
	269	dbg(DBG_LIB, 3, "memwipe() pre: %b", buf, sizeof(buf));
	270	memwipe(buf, sizeof(buf));
	271	}
	272
	273	/**
	274	* Check if memwipe works as expected
	275	*/
	276	static bool check_memwipe()
	277	{
bc1c92c9	278	int magic = 0xCAFEBABE, *buf, i;
e6ba688a	279
bc1c92c9	280	do_magic(&magic, &buf);
e6ba688a	281
bc1c92c9	282	for (i = 0; i < MEMWIPE_WIPE_WORDS; i++)
e6ba688a	283	{
bc1c92c9	284	if (buf[i] == magic)
e6ba688a	285	{
bc1c92c9 MW	286	DBG1(DBG_LIB, "memwipe() check failed: stackdir: %b",
bc1c92c9 MW	287	buf, MEMWIPE_WIPE_WORDS * sizeof(int));
e6ba688a MW	288	return FALSE;
	289	}
	290	}
	291	return TRUE;
	292	}
	293
98b55c8b TB	294	#endif
98b55c8b TB	295
552cc11b MW	296	/*
552cc11b MW	297	* see header file
db7ef624	298	*/
34d3bfcf	299	bool library_init(char settings, const char namespace)
db7ef624	300	{
2ce569cc	301	private_library_t *this;
552cc11b	302	printf_hook_t *pfh;
5c8dc908	303	int i;
2ce569cc	304
1e5e1fb6 MW	305	if (lib)
	306	{ /* already initialized, increase refcount */
	307	this = (private_library_t*)lib;
	308	ref_get(&this->ref);
f6b4ba2a	309	return !this->init_failed;
1e5e1fb6 MW	310	}
1e5e1fb6 MW	311
460adb5d	312	chunk_hash_seed();
c46cee6f	313
2ce569cc MW	314	INIT(this,
	315	.public = {
	316	.get = _get,
	317	.set = _set,
34d3bfcf	318	.ns = strdup(namespace ?: "libstrongswan"),
5fea4550	319	.conf = strdupnull(settings ?: (getenv("STRONGSWAN_CONF") ?: STRONGSWAN_CONF)),
2ce569cc	320	},
1e5e1fb6	321	.ref = 1,
2ce569cc	322	);
552cc11b	323	lib = &this->public;
7daf5226	324
4a5a5dd2	325	threads_init();
965e846c	326	utils_init();
b3613c49	327	arrays_init();
965e846c	328	backtrace_init();
4a5a5dd2	329
552cc11b	330	#ifdef LEAK_DETECTIVE
4f1c6bc5 TB	331	{
	332	FILE *out = NULL;
	333	char *log;
	334
	335	log = getenv("LEAK_DETECTIVE_LOG");
	336	if (log)
	337	{
	338	out = fopen(log, "a");
	339	}
	340	this->ld_out = out ?: stderr;
	341	}
f37e8252	342	lib->leak_detective = leak_detective_create();
adc11574 TB	343	if (lib->leak_detective)
	344	{
	345	lib->leak_detective->set_report_cb(lib->leak_detective,
4f1c6bc5	346	report_leaks, sum_leaks, this);
adc11574	347	}
552cc11b	348	#endif /* LEAK_DETECTIVE */
2f5914a3	349
552cc11b MW	350	pfh = printf_hook_create();
552cc11b MW	351	this->public.printf_hook = pfh;
7daf5226	352
d25ce370 TB	353	pfh->add_handler(pfh, 'b', mem_printf_hook,
	354	PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_INT,
	355	PRINTF_HOOK_ARGTYPE_END);
	356	pfh->add_handler(pfh, 'B', chunk_printf_hook,
	357	PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
d25ce370 TB	358	pfh->add_handler(pfh, 'H', host_printf_hook,
	359	PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
	360	pfh->add_handler(pfh, 'N', enum_printf_hook,
	361	PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_INT,
	362	PRINTF_HOOK_ARGTYPE_END);
	363	pfh->add_handler(pfh, 'T', time_printf_hook,
	364	PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_INT,
	365	PRINTF_HOOK_ARGTYPE_END);
	366	pfh->add_handler(pfh, 'V', time_delta_printf_hook,
	367	PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_POINTER,
	368	PRINTF_HOOK_ARGTYPE_END);
d24a74c5 TB	369	pfh->add_handler(pfh, 'Y', identification_printf_hook,
d24a74c5 TB	370	PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
5493ffde MW	371	pfh->add_handler(pfh, 'R', traffic_selector_printf_hook,
5493ffde MW	372	PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
2307bffe TB	373	pfh->add_handler(pfh, 'P', proposal_printf_hook,
2307bffe TB	374	PRINTF_HOOK_ARGTYPE_POINTER, PRINTF_HOOK_ARGTYPE_END);
7daf5226	375
2ce569cc MW	376	this->objects = hashtable_create((hashtable_hash_t)hash,
2ce569cc MW	377	(hashtable_equals_t)equals, 4);
4b670a20	378
f6b4ba2a TB	379	this->public.settings = settings_create(NULL);
	380	if (!this->public.settings->load_files(this->public.settings,
	381	this->public.conf, FALSE))
	382	{
	383	DBG1(DBG_LIB, "abort initialization due to invalid configuration");
	384	this->init_failed = TRUE;
	385	}
	386
5c8dc908 TB	387	/* add registered aliases */
	388	for (i = 0; i < ns_count; ++i)
	389	{
	390	lib->settings->add_fallback(lib->settings, lib->ns, namespaces[i]);
	391	}
7a684aec TB	392	/* all namespace settings may fall back to libstrongswan */
	393	lib->settings->add_fallback(lib->settings, lib->ns, "libstrongswan");
	394
b4f6c39e	395	this->public.hosts = host_resolver_create();
4c57c630	396	this->public.proposal = proposal_keywords_create();
a2eb5817	397	this->public.caps = capabilities_create();
552cc11b MW	398	this->public.crypto = crypto_factory_create();
552cc11b MW	399	this->public.creds = credential_factory_create();
2ccc02a4	400	this->public.credmgr = credential_manager_create();
da9724e6	401	this->public.encoding = cred_encoding_create();
552cc11b	402	this->public.fetcher = fetcher_manager_create();
b1505b34	403	this->public.resolver = resolver_manager_create();
552cc11b	404	this->public.db = database_factory_create();
e18556e9 TB	405	this->public.processor = processor_create();
e18556e9 TB	406	this->public.scheduler = scheduler_create();
32b2a5e0	407	this->public.watcher = watcher_create();
2ba27601	408	this->public.streams = stream_manager_create();
552cc11b	409	this->public.plugins = plugin_loader_create();
7daf5226	410
98b55c8b	411	#ifndef NO_CHECK_MEMWIPE
e6ba688a MW	412	if (!check_memwipe())
e6ba688a MW	413	{
e6ba688a MW	414	return FALSE;
e6ba688a MW	415	}
98b55c8b	416	#endif
e6ba688a	417
960e0c10	418	if (lib->settings->get_bool(lib->settings,
8dc6e716	419	"%s.integrity_test", FALSE, lib->ns))
960e0c10	420	{
bef50875	421	#ifdef INTEGRITY_TEST
0179d468	422	this->public.integrity = integrity_checker_create(CHECKSUM_LIBRARY);
6a8c8815	423	if (!lib->integrity->check(lib->integrity, "libstrongswan", library_init))
059c479a	424	{
8b0e0910	425	DBG1(DBG_LIB, "integrity check of libstrongswan failed");
f6b4ba2a	426	this->init_failed = TRUE;
059c479a	427	}
bef50875	428	#else /* !INTEGRITY_TEST */
8b0e0910	429	DBG1(DBG_LIB, "integrity test enabled, but not supported");
f6b4ba2a	430	this->init_failed = TRUE;
bef50875	431	#endif /* INTEGRITY_TEST */
960e0c10	432	}
4c6c9346	433
46184b07 MW	434	diffie_hellman_init();
46184b07 MW	435
f6b4ba2a	436	return !this->init_failed;
db7ef624	437	}