[thirdparty/strongswan.git] / src / libcharon / tests / utils / exchange_test_helper.c

/*
 * Copyright (C) 2016 Tobias Brunner
 * 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 "exchange_test_helper.h"
#include "mock_dh.h"
#include "mock_ipsec.h"
#include "mock_nonce_gen.h"

#include <collections/array.h>
#include <credentials/sets/mem_cred.h>

typedef struct private_exchange_test_helper_t private_exchange_test_helper_t;
typedef struct private_backend_t private_backend_t;

/**
 * Private data
 */
struct private_exchange_test_helper_t {

	/**
	 * Public interface
	 */
	exchange_test_helper_t public;

	/**
	 * Credentials
	 */
	mem_cred_t *creds;

	/**
	 * IKE_SA SPI counter
	 */
	refcount_t ike_spi;

	/**
	 * List of registered listeners
	 */
	array_t *listeners;
};

/**
 * Custom backend_t implementation
 */
struct private_backend_t {

	/**
	 * Public interface
	 */
	backend_t public;

	/**
	 * Responder ike_cfg
	 */
	ike_cfg_t *ike_cfg;

	/**
	 * Responder peer_cfg/child_cfg
	 */
	peer_cfg_t *peer_cfg;
};

CALLBACK(get_ike_spi, uint64_t,
	private_exchange_test_helper_t *this)
{
	return (uint64_t)ref_get(&this->ike_spi);
}

/*
 * Described in header
 */
exchange_test_helper_t *exchange_test_helper;

static ike_cfg_t *create_ike_cfg(bool initiator, exchange_test_sa_conf_t *conf)
{
	ike_cfg_t *ike_cfg;
	char *proposal = NULL;

	ike_cfg = ike_cfg_create(IKEV2, TRUE, FALSE, "127.0.0.1", IKEV2_UDP_PORT,
							 "127.0.0.1", IKEV2_UDP_PORT, FRAGMENTATION_NO, 0);
	if (conf)
	{
		proposal = initiator ? conf->initiator.ike : conf->responder.ike;
	}
	if (proposal)
	{
		ike_cfg->add_proposal(ike_cfg,
							proposal_create_from_string(PROTO_IKE, proposal));
	}
	else
	{
		ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
	}
	return ike_cfg;
}

static child_cfg_t *create_child_cfg(bool initiator,
									 exchange_test_sa_conf_t *conf)
{
	child_cfg_t *child_cfg;
	child_cfg_create_t child = {
		.mode = MODE_TUNNEL,
	};
	char *proposal = NULL;

	child_cfg = child_cfg_create(initiator ? "init" : "resp", &child);
	if (conf)
	{
		proposal = initiator ? conf->initiator.esp : conf->responder.esp;
	}
	if (proposal)
	{
		child_cfg->add_proposal(child_cfg,
							proposal_create_from_string(PROTO_ESP, proposal));
	}
	else
	{
		child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
	}
	child_cfg->add_traffic_selector(child_cfg, TRUE,
								traffic_selector_create_dynamic(0, 0, 65535));
	child_cfg->add_traffic_selector(child_cfg, FALSE,
								traffic_selector_create_dynamic(0, 0, 65535));
	return child_cfg;
}

static void add_auth_cfg(peer_cfg_t *peer_cfg, bool initiator, bool local)
{
	auth_cfg_t *auth;
	char *id = "init";

	auth = auth_cfg_create();
	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PSK);
	if (initiator ^ local)
	{
		id = "resp";
	}
	auth->add(auth, AUTH_RULE_IDENTITY, identification_create_from_string(id));
	peer_cfg->add_auth_cfg(peer_cfg, auth, local);
}

static peer_cfg_t *create_peer_cfg(bool initiator,
								   exchange_test_sa_conf_t *conf)
{
	peer_cfg_t *peer_cfg;
	peer_cfg_create_t peer = {
		.cert_policy = CERT_SEND_IF_ASKED,
		.unique = UNIQUE_REPLACE,
		.keyingtries = 1,
	};

	peer_cfg = peer_cfg_create(initiator ? "init" : "resp",
							   create_ike_cfg(initiator, conf), &peer);
	add_auth_cfg(peer_cfg, initiator, TRUE);
	add_auth_cfg(peer_cfg, initiator, FALSE);
	return peer_cfg;
}

METHOD(backend_t, create_ike_cfg_enumerator, enumerator_t*,
	private_backend_t *this, host_t *me, host_t *other)
{
	return enumerator_create_single(this->ike_cfg, NULL);
}

METHOD(backend_t, create_peer_cfg_enumerator, enumerator_t*,
	private_backend_t *this, identification_t *me, identification_t *other)
{
	return enumerator_create_single(this->peer_cfg, NULL);
}

METHOD(exchange_test_helper_t, process_message, status_t,
	private_exchange_test_helper_t *this, ike_sa_t *ike_sa, message_t *message)
{
	status_t status = FAILED;
	ike_sa_id_t *id;

	if (!message)
	{
		message = this->public.sender->dequeue(this->public.sender);
	}
	id = message->get_ike_sa_id(message);
	id = id->clone(id);
	id->switch_initiator(id);
	if (!id->get_responder_spi(id) || id->equals(id, ike_sa->get_id(ike_sa)))
	{
		charon->bus->set_sa(charon->bus, ike_sa);
		status = ike_sa->process_message(ike_sa, message);
		charon->bus->set_sa(charon->bus, NULL);
	}
	message->destroy(message);
	id->destroy(id);
	return status;
}

METHOD(exchange_test_helper_t, establish_sa, void,
	private_exchange_test_helper_t *this, ike_sa_t **init, ike_sa_t **resp,
	exchange_test_sa_conf_t *conf)
{
	private_backend_t backend = {
		.public = {
			.create_ike_cfg_enumerator = _create_ike_cfg_enumerator,
			.create_peer_cfg_enumerator = _create_peer_cfg_enumerator,
			.get_peer_cfg_by_name = (void*)return_null,
		},
	};
	ike_sa_id_t *id_i, *id_r;
	ike_sa_t *sa_i, *sa_r;
	peer_cfg_t *peer_cfg;
	child_cfg_t *child_cfg;

	sa_i = *init = charon->ike_sa_manager->checkout_new(charon->ike_sa_manager,
														IKEV2, TRUE);
	id_i = sa_i->get_id(sa_i);

	sa_r = *resp = charon->ike_sa_manager->checkout_new(charon->ike_sa_manager,
														IKEV2, FALSE);
	id_r = sa_r->get_id(sa_r);

	peer_cfg = create_peer_cfg(TRUE, conf);
	child_cfg = create_child_cfg(TRUE, conf);
	peer_cfg->add_child_cfg(peer_cfg, child_cfg->get_ref(child_cfg));
	sa_i->set_peer_cfg(sa_i, peer_cfg);
	peer_cfg->destroy(peer_cfg);
	call_ikesa(sa_i, initiate, child_cfg, 0, NULL, NULL);

	backend.ike_cfg = create_ike_cfg(FALSE, conf);
	peer_cfg = backend.peer_cfg = create_peer_cfg(FALSE, conf);
	child_cfg = create_child_cfg(FALSE, conf);
	peer_cfg->add_child_cfg(peer_cfg, child_cfg->get_ref(child_cfg));
	child_cfg->destroy(child_cfg);
	charon->backends->add_backend(charon->backends, &backend.public);

	/* IKE_SA_INIT --> */
	id_r->set_initiator_spi(id_r, id_i->get_initiator_spi(id_i));
	process_message(this, sa_r, NULL);
	/* <-- IKE_SA_INIT */
	id_i->set_responder_spi(id_i, id_r->get_responder_spi(id_r));
	process_message(this, sa_i, NULL);
	/* IKE_AUTH --> */
	process_message(this, sa_r, NULL);
	/* <-- IKE_AUTH */
	process_message(this, sa_i, NULL);

	charon->backends->remove_backend(charon->backends, &backend.public);
	DESTROY_IF(backend.peer_cfg);
	DESTROY_IF(backend.ike_cfg);
}

METHOD(exchange_test_helper_t, add_listener, void,
	private_exchange_test_helper_t *this, listener_t *listener)
{
	array_insert_create(&this->listeners, ARRAY_TAIL, listener);
	charon->bus->add_listener(charon->bus, listener);
}

/**
 * Enable logging in charon as requested
 */
static void initialize_logging()
{
	int level = LEVEL_SILENT;
	char *verbosity;

	verbosity = getenv("TESTS_VERBOSITY");
	if (verbosity)
	{
		level = atoi(verbosity);
	}
	lib->settings->set_int(lib->settings, "%s.filelog.stderr.default",
			lib->settings->get_int(lib->settings, "%s.filelog.stderr.default",
								   level, lib->ns), lib->ns);
	lib->settings->set_bool(lib->settings, "%s.filelog.stderr.ike_name", TRUE,
							lib->ns);
	charon->load_loggers(charon, NULL, TRUE);
}

/**
 * Create a nonce generator with the first byte
 */
static nonce_gen_t *create_nonce_gen()
{
	return mock_nonce_gen_create(exchange_test_helper->nonce_first_byte);
}

/*
 * Described in header
 */
void exchange_test_helper_init(char *plugins)
{
	private_exchange_test_helper_t *this;
	plugin_feature_t features[] = {
		PLUGIN_REGISTER(DH, mock_dh_create),
			/* we only need to support a limited number of DH groups */
			PLUGIN_PROVIDE(DH, MODP_2048_BIT),
			PLUGIN_PROVIDE(DH, MODP_3072_BIT),
			PLUGIN_PROVIDE(DH, ECP_256_BIT),
		PLUGIN_REGISTER(NONCE_GEN, create_nonce_gen),
			PLUGIN_PROVIDE(NONCE_GEN),
				PLUGIN_DEPENDS(RNG, RNG_WEAK),
	};

	INIT(this,
		.public = {
			.sender = mock_sender_create(),
			.establish_sa = _establish_sa,
			.process_message = _process_message,
			.add_listener = _add_listener,
		},
		.creds = mem_cred_create(),
	);

	initialize_logging();
	lib->plugins->add_static_features(lib->plugins, "exchange-test-helper",
								features, countof(features), TRUE, NULL, NULL);
	/* the libcharon unit tests only load the libstrongswan plugins, unless
	 * TESTS_PLUGINS is defined */
	charon->initialize(charon, plugins);
	lib->plugins->status(lib->plugins, LEVEL_CTRL);

	/* the original sender is not initialized because there is no socket */
	charon->sender = (sender_t*)this->public.sender;
	/* and there is no kernel plugin loaded
	 * TODO: we'd have more control if we'd implement kernel_interface_t */
	charon->kernel->add_ipsec_interface(charon->kernel, mock_ipsec_create);
	/* like SPIs for IPsec SAs, make IKE SPIs predictable */
	charon->ike_sa_manager->set_spi_cb(charon->ike_sa_manager, get_ike_spi,
									   this);

	lib->credmgr->add_set(lib->credmgr, &this->creds->set);

	this->creds->add_shared(this->creds,
			shared_key_create(SHARED_IKE, chunk_clone(chunk_from_str("test"))),
			identification_create_from_string("%any"), NULL);

	exchange_test_helper = &this->public;
}

/*
 * Described in header
 */
void exchange_test_helper_deinit()
{
	private_exchange_test_helper_t *this;
	listener_t *listener;

	this = (private_exchange_test_helper_t*)exchange_test_helper;

	while (array_remove(this->listeners, ARRAY_HEAD, &listener))
	{
		charon->bus->remove_listener(charon->bus, listener);
	}
	lib->credmgr->remove_set(lib->credmgr, &this->creds->set);
	this->creds->destroy(this->creds);
	/* flush SAs before destroying the sender (in case of test failures) */
	charon->ike_sa_manager->flush(charon->ike_sa_manager);
	/* charon won't destroy this as it didn't initialize the original sender */
	charon->sender->destroy(charon->sender);
	charon->sender = NULL;
	array_destroy(this->listeners);
	free(this);
}
Commit	Line	Data
c7f5259c TB	1	/*
	2	* Copyright (C) 2016 Tobias Brunner
	3	* HSR Hochschule fuer Technik Rapperswil
	4	*
	5	* This program is free software; you can redistribute it and/or modify it
	6	* under the terms of the GNU General Public License as published by the
	7	* Free Software Foundation; either version 2 of the License, or (at your
	8	* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
	9	*
	10	* This program is distributed in the hope that it will be useful, but
	11	* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
	12	* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
	13	* for more details.
	14	*/
	15
	16	#include "exchange_test_helper.h"
7e542486	17	#include "mock_dh.h"
dda5aab0 TB	18	#include "mock_ipsec.h"
dda5aab0 TB	19	#include "mock_nonce_gen.h"
c7f5259c	20
5d10ef31	21	#include <collections/array.h>
c7f5259c TB	22	#include <credentials/sets/mem_cred.h>
	23
	24	typedef struct private_exchange_test_helper_t private_exchange_test_helper_t;
557e262f	25	typedef struct private_backend_t private_backend_t;
c7f5259c TB	26
	27	/**
	28	* Private data
	29	*/
	30	struct private_exchange_test_helper_t {
	31
	32	/**
	33	* Public interface
	34	*/
	35	exchange_test_helper_t public;
	36
c7f5259c TB	37	/**
	38	* Credentials
	39	*/
	40	mem_cred_t *creds;
29f1637b TB	41
	42	/**
	43	* IKE_SA SPI counter
	44	*/
	45	refcount_t ike_spi;
5d10ef31 TB	46
	47	/**
	48	* List of registered listeners
	49	*/
	50	array_t *listeners;
c7f5259c TB	51	};
c7f5259c TB	52
557e262f TB	53	/**
	54	* Custom backend_t implementation
	55	*/
	56	struct private_backend_t {
	57
	58	/**
	59	* Public interface
	60	*/
	61	backend_t public;
	62
	63	/**
	64	* Responder ike_cfg
	65	*/
	66	ike_cfg_t *ike_cfg;
	67
	68	/**
	69	* Responder peer_cfg/child_cfg
	70	*/
	71	peer_cfg_t *peer_cfg;
	72	};
	73
29f1637b TB	74	CALLBACK(get_ike_spi, uint64_t,
	75	private_exchange_test_helper_t *this)
	76	{
	77	return (uint64_t)ref_get(&this->ike_spi);
	78	}
	79
c7f5259c TB	80	/*
	81	* Described in header
	82	*/
	83	exchange_test_helper_t *exchange_test_helper;
	84
557e262f	85	static ike_cfg_t create_ike_cfg(bool initiator, exchange_test_sa_conf_t conf)
c7f5259c TB	86	{
c7f5259c TB	87	ike_cfg_t *ike_cfg;
557e262f	88	char *proposal = NULL;
c7f5259c TB	89
	90	ike_cfg = ike_cfg_create(IKEV2, TRUE, FALSE, "127.0.0.1", IKEV2_UDP_PORT,
	91	"127.0.0.1", IKEV2_UDP_PORT, FRAGMENTATION_NO, 0);
557e262f TB	92	if (conf)
	93	{
	94	proposal = initiator ? conf->initiator.ike : conf->responder.ike;
	95	}
	96	if (proposal)
	97	{
	98	ike_cfg->add_proposal(ike_cfg,
	99	proposal_create_from_string(PROTO_IKE, proposal));
	100	}
	101	else
	102	{
	103	ike_cfg->add_proposal(ike_cfg, proposal_create_default(PROTO_IKE));
	104	}
c7f5259c TB	105	return ike_cfg;
	106	}
	107
557e262f TB	108	static child_cfg_t *create_child_cfg(bool initiator,
557e262f TB	109	exchange_test_sa_conf_t *conf)
c7f5259c TB	110	{
	111	child_cfg_t *child_cfg;
	112	child_cfg_create_t child = {
	113	.mode = MODE_TUNNEL,
	114	};
557e262f	115	char *proposal = NULL;
c7f5259c TB	116
c7f5259c TB	117	child_cfg = child_cfg_create(initiator ? "init" : "resp", &child);
557e262f TB	118	if (conf)
	119	{
	120	proposal = initiator ? conf->initiator.esp : conf->responder.esp;
	121	}
	122	if (proposal)
	123	{
	124	child_cfg->add_proposal(child_cfg,
	125	proposal_create_from_string(PROTO_ESP, proposal));
	126	}
	127	else
	128	{
	129	child_cfg->add_proposal(child_cfg, proposal_create_default(PROTO_ESP));
	130	}
c7f5259c TB	131	child_cfg->add_traffic_selector(child_cfg, TRUE,
	132	traffic_selector_create_dynamic(0, 0, 65535));
	133	child_cfg->add_traffic_selector(child_cfg, FALSE,
	134	traffic_selector_create_dynamic(0, 0, 65535));
	135	return child_cfg;
	136	}
	137
	138	static void add_auth_cfg(peer_cfg_t *peer_cfg, bool initiator, bool local)
	139	{
	140	auth_cfg_t *auth;
	141	char *id = "init";
	142
	143	auth = auth_cfg_create();
	144	auth->add(auth, AUTH_RULE_AUTH_CLASS, AUTH_CLASS_PSK);
	145	if (initiator ^ local)
	146	{
	147	id = "resp";
	148	}
	149	auth->add(auth, AUTH_RULE_IDENTITY, identification_create_from_string(id));
	150	peer_cfg->add_auth_cfg(peer_cfg, auth, local);
	151	}
	152
557e262f TB	153	static peer_cfg_t *create_peer_cfg(bool initiator,
557e262f TB	154	exchange_test_sa_conf_t *conf)
c7f5259c TB	155	{
	156	peer_cfg_t *peer_cfg;
	157	peer_cfg_create_t peer = {
	158	.cert_policy = CERT_SEND_IF_ASKED,
	159	.unique = UNIQUE_REPLACE,
	160	.keyingtries = 1,
	161	};
	162
557e262f TB	163	peer_cfg = peer_cfg_create(initiator ? "init" : "resp",
557e262f TB	164	create_ike_cfg(initiator, conf), &peer);
c7f5259c TB	165	add_auth_cfg(peer_cfg, initiator, TRUE);
c7f5259c TB	166	add_auth_cfg(peer_cfg, initiator, FALSE);
c7f5259c TB	167	return peer_cfg;
	168	}
	169
	170	METHOD(backend_t, create_ike_cfg_enumerator, enumerator_t*,
557e262f	171	private_backend_t this, host_t me, host_t *other)
c7f5259c	172	{
557e262f	173	return enumerator_create_single(this->ike_cfg, NULL);
c7f5259c TB	174	}
	175
	176	METHOD(backend_t, create_peer_cfg_enumerator, enumerator_t*,
557e262f	177	private_backend_t this, identification_t me, identification_t *other)
c7f5259c	178	{
557e262f	179	return enumerator_create_single(this->peer_cfg, NULL);
c7f5259c TB	180	}
c7f5259c TB	181
b76c1dec	182	METHOD(exchange_test_helper_t, process_message, status_t,
c7f5259c TB	183	private_exchange_test_helper_t this, ike_sa_t ike_sa, message_t *message)
c7f5259c TB	184	{
40d9a4c8 TB	185	status_t status = FAILED;
40d9a4c8 TB	186	ike_sa_id_t *id;
b76c1dec	187
c7f5259c TB	188	if (!message)
	189	{
	190	message = this->public.sender->dequeue(this->public.sender);
	191	}
40d9a4c8 TB	192	id = message->get_ike_sa_id(message);
	193	id = id->clone(id);
	194	id->switch_initiator(id);
	195	if (!id->get_responder_spi(id) \|\| id->equals(id, ike_sa->get_id(ike_sa)))
	196	{
	197	charon->bus->set_sa(charon->bus, ike_sa);
	198	status = ike_sa->process_message(ike_sa, message);
	199	charon->bus->set_sa(charon->bus, NULL);
	200	}
c7f5259c	201	message->destroy(message);
40d9a4c8	202	id->destroy(id);
b76c1dec	203	return status;
c7f5259c TB	204	}
	205
	206	METHOD(exchange_test_helper_t, establish_sa, void,
557e262f TB	207	private_exchange_test_helper_t this, ike_sa_t init, ike_sa_t *resp,
557e262f TB	208	exchange_test_sa_conf_t *conf)
c7f5259c	209	{
557e262f TB	210	private_backend_t backend = {
	211	.public = {
	212	.create_ike_cfg_enumerator = _create_ike_cfg_enumerator,
	213	.create_peer_cfg_enumerator = _create_peer_cfg_enumerator,
	214	.get_peer_cfg_by_name = (void*)return_null,
	215	},
	216	};
c7f5259c TB	217	ike_sa_id_t id_i, id_r;
	218	ike_sa_t sa_i, sa_r;
	219	peer_cfg_t *peer_cfg;
557e262f	220	child_cfg_t *child_cfg;
c7f5259c TB	221
	222	sa_i = *init = charon->ike_sa_manager->checkout_new(charon->ike_sa_manager,
	223	IKEV2, TRUE);
	224	id_i = sa_i->get_id(sa_i);
	225
	226	sa_r = *resp = charon->ike_sa_manager->checkout_new(charon->ike_sa_manager,
	227	IKEV2, FALSE);
	228	id_r = sa_r->get_id(sa_r);
	229
557e262f TB	230	peer_cfg = create_peer_cfg(TRUE, conf);
	231	child_cfg = create_child_cfg(TRUE, conf);
	232	peer_cfg->add_child_cfg(peer_cfg, child_cfg->get_ref(child_cfg));
c7f5259c TB	233	sa_i->set_peer_cfg(sa_i, peer_cfg);
c7f5259c TB	234	peer_cfg->destroy(peer_cfg);
557e262f TB	235	call_ikesa(sa_i, initiate, child_cfg, 0, NULL, NULL);
	236
	237	backend.ike_cfg = create_ike_cfg(FALSE, conf);
	238	peer_cfg = backend.peer_cfg = create_peer_cfg(FALSE, conf);
	239	child_cfg = create_child_cfg(FALSE, conf);
	240	peer_cfg->add_child_cfg(peer_cfg, child_cfg->get_ref(child_cfg));
	241	child_cfg->destroy(child_cfg);
	242	charon->backends->add_backend(charon->backends, &backend.public);
	243
c7f5259c TB	244	/* IKE_SA_INIT --> */
	245	id_r->set_initiator_spi(id_r, id_i->get_initiator_spi(id_i));
	246	process_message(this, sa_r, NULL);
	247	/* <-- IKE_SA_INIT */
	248	id_i->set_responder_spi(id_i, id_r->get_responder_spi(id_r));
	249	process_message(this, sa_i, NULL);
	250	/* IKE_AUTH --> */
	251	process_message(this, sa_r, NULL);
	252	/* <-- IKE_AUTH */
	253	process_message(this, sa_i, NULL);
557e262f TB	254
	255	charon->backends->remove_backend(charon->backends, &backend.public);
	256	DESTROY_IF(backend.peer_cfg);
	257	DESTROY_IF(backend.ike_cfg);
c7f5259c TB	258	}
c7f5259c TB	259
5d10ef31 TB	260	METHOD(exchange_test_helper_t, add_listener, void,
	261	private_exchange_test_helper_t this, listener_t listener)
	262	{
	263	array_insert_create(&this->listeners, ARRAY_TAIL, listener);
	264	charon->bus->add_listener(charon->bus, listener);
	265	}
	266
c7f5259c TB	267	/**
	268	* Enable logging in charon as requested
	269	*/
	270	static void initialize_logging()
	271	{
	272	int level = LEVEL_SILENT;
	273	char *verbosity;
	274
	275	verbosity = getenv("TESTS_VERBOSITY");
	276	if (verbosity)
	277	{
	278	level = atoi(verbosity);
	279	}
	280	lib->settings->set_int(lib->settings, "%s.filelog.stderr.default",
	281	lib->settings->get_int(lib->settings, "%s.filelog.stderr.default",
	282	level, lib->ns), lib->ns);
	283	lib->settings->set_bool(lib->settings, "%s.filelog.stderr.ike_name", TRUE,
	284	lib->ns);
	285	charon->load_loggers(charon, NULL, TRUE);
	286	}
	287
dda5aab0 TB	288	/**
	289	* Create a nonce generator with the first byte
	290	*/
	291	static nonce_gen_t *create_nonce_gen()
	292	{
	293	return mock_nonce_gen_create(exchange_test_helper->nonce_first_byte);
	294	}
	295
c7f5259c TB	296	/*
	297	* Described in header
	298	*/
	299	void exchange_test_helper_init(char *plugins)
	300	{
	301	private_exchange_test_helper_t *this;
7e542486 TB	302	plugin_feature_t features[] = {
	303	PLUGIN_REGISTER(DH, mock_dh_create),
	304	/* we only need to support a limited number of DH groups */
	305	PLUGIN_PROVIDE(DH, MODP_2048_BIT),
	306	PLUGIN_PROVIDE(DH, MODP_3072_BIT),
	307	PLUGIN_PROVIDE(DH, ECP_256_BIT),
dda5aab0 TB	308	PLUGIN_REGISTER(NONCE_GEN, create_nonce_gen),
	309	PLUGIN_PROVIDE(NONCE_GEN),
	310	PLUGIN_DEPENDS(RNG, RNG_WEAK),
7e542486	311	};
c7f5259c TB	312
	313	INIT(this,
	314	.public = {
	315	.sender = mock_sender_create(),
	316	.establish_sa = _establish_sa,
	317	.process_message = _process_message,
5d10ef31	318	.add_listener = _add_listener,
c7f5259c	319	},
c7f5259c TB	320	.creds = mem_cred_create(),
	321	);
	322
	323	initialize_logging();
7e542486 TB	324	lib->plugins->add_static_features(lib->plugins, "exchange-test-helper",
7e542486 TB	325	features, countof(features), TRUE, NULL, NULL);
c7f5259c TB	326	/* the libcharon unit tests only load the libstrongswan plugins, unless
	327	* TESTS_PLUGINS is defined */
	328	charon->initialize(charon, plugins);
	329	lib->plugins->status(lib->plugins, LEVEL_CTRL);
7e542486	330
c7f5259c TB	331	/* the original sender is not initialized because there is no socket */
	332	charon->sender = (sender_t*)this->public.sender;
	333	/* and there is no kernel plugin loaded
	334	* TODO: we'd have more control if we'd implement kernel_interface_t */
	335	charon->kernel->add_ipsec_interface(charon->kernel, mock_ipsec_create);
29f1637b TB	336	/* like SPIs for IPsec SAs, make IKE SPIs predictable */
	337	charon->ike_sa_manager->set_spi_cb(charon->ike_sa_manager, get_ike_spi,
	338	this);
c7f5259c	339
c7f5259c TB	340	lib->credmgr->add_set(lib->credmgr, &this->creds->set);
	341
	342	this->creds->add_shared(this->creds,
	343	shared_key_create(SHARED_IKE, chunk_clone(chunk_from_str("test"))),
	344	identification_create_from_string("%any"), NULL);
	345
	346	exchange_test_helper = &this->public;
	347	}
	348
	349	/*
	350	* Described in header
	351	*/
	352	void exchange_test_helper_deinit()
	353	{
	354	private_exchange_test_helper_t *this;
5d10ef31	355	listener_t *listener;
c7f5259c TB	356
	357	this = (private_exchange_test_helper_t*)exchange_test_helper;
	358
5d10ef31 TB	359	while (array_remove(this->listeners, ARRAY_HEAD, &listener))
	360	{
	361	charon->bus->remove_listener(charon->bus, listener);
	362	}
c7f5259c TB	363	lib->credmgr->remove_set(lib->credmgr, &this->creds->set);
c7f5259c TB	364	this->creds->destroy(this->creds);
735bd4ca TB	365	/* flush SAs before destroying the sender (in case of test failures) */
	366	charon->ike_sa_manager->flush(charon->ike_sa_manager);
	367	/* charon won't destroy this as it didn't initialize the original sender */
c7f5259c TB	368	charon->sender->destroy(charon->sender);
c7f5259c TB	369	charon->sender = NULL;
5d10ef31	370	array_destroy(this->listeners);
c7f5259c TB	371	free(this);
c7f5259c TB	372	}