[thirdparty/strongswan.git] / src / libcharon / plugins / kernel_netlink / suites / test_socket.c

/*
 * Copyright (C) 2014 Martin Willi
 *
 * Copyright (C) secunet Security Networks AG
 *
 * 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 <test_suite.h>

#include <threading/thread.h>

#include "../kernel_netlink_shared.h"

/**
 * Netlink message drop configuration
 */
static int drop_interval = 0;

/**
 * Netlink message drop hook
 */
bool netlink_msg_loss(struct nlmsghdr *hdr)
{
	static refcount_t i;

	if (drop_interval)
	{
		return ref_get(&i) % drop_interval == drop_interval - 1;
	}
	return FALSE;
}

START_TEST(test_echo)
{
	netlink_socket_t *s;
	struct nlmsghdr *out;
	struct rtmsg *msg;
	char dst[] = {
		127,0,0,1
	};
	size_t len;
	netlink_buf_t request = {
		.hdr = {
			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)),
			.nlmsg_flags = NLM_F_REQUEST,
			.nlmsg_type = RTM_GETROUTE,
		},
	};

	msg = NLMSG_DATA(&request.hdr);
	msg->rtm_family = AF_INET;
	netlink_add_attribute(&request.hdr, RTA_DST,
						  chunk_from_thing(dst), sizeof(request));

	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);

	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
	ck_assert_int_eq(out->nlmsg_type, RTM_NEWROUTE);
	free(out);
	s->destroy(s);
}
END_TEST

START_TEST(test_echo_dump)
{
	netlink_socket_t *s;
	struct nlmsghdr *out, *current;
	struct rtgenmsg *msg;
	size_t len;
	netlink_buf_t request = {
		.hdr = {
			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
			.nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH | NLM_F_ROOT,
			.nlmsg_type = RTM_GETLINK,
		},
	};

	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
	msg = NLMSG_DATA(&request.hdr);
	msg->rtgen_family = AF_UNSPEC;

	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
	current = out;
	while (TRUE)
	{
		ck_assert(NLMSG_OK(current, len));
		if (current->nlmsg_type == NLMSG_DONE)
		{
			break;
		}
		ck_assert_int_eq(current->nlmsg_type, RTM_NEWLINK);
		current = NLMSG_NEXT(current, len);
	}
	free(out);
	s->destroy(s);
}
END_TEST

CALLBACK(stress, void*,
	netlink_socket_t *s)
{
	struct nlmsghdr *out;
	struct rtmsg *msg;
	char dst[] = {
		127,0,0,1
	};
	size_t len;
	int i;
	netlink_buf_t request = {
		.hdr = {
			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)),
			.nlmsg_flags = NLM_F_REQUEST,
			.nlmsg_type = RTM_GETROUTE,
		},
	};

	for (i = 0; i < 10; i++)
	{
		msg = NLMSG_DATA(&request.hdr);
		msg->rtm_family = AF_INET;
		netlink_add_attribute(&request.hdr, RTA_DST,
							  chunk_from_thing(dst), sizeof(request));

		ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
		ck_assert_int_eq(out->nlmsg_type, RTM_NEWROUTE);
		free(out);
	}
	return NULL;
}

CALLBACK(stress_dump, void*,
	netlink_socket_t *s)
{
	struct nlmsghdr *out, *current;
	struct rtgenmsg *msg;
	size_t len;
	int i;
	netlink_buf_t request = {
		.hdr = {
			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
			.nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH | NLM_F_ROOT,
			.nlmsg_type = RTM_GETLINK,
		},
	};

	msg = NLMSG_DATA(&request.hdr);
	msg->rtgen_family = AF_UNSPEC;

	for (i = 0; i < 10; i++)
	{
		ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
		current = out;
		while (TRUE)
		{
			ck_assert(NLMSG_OK(current, len));
			if (current->nlmsg_type == NLMSG_DONE)
			{
				break;
			}
			ck_assert_int_eq(current->nlmsg_type, RTM_NEWLINK);
			current = NLMSG_NEXT(current, len);
		}
		free(out);
	}
	return NULL;
}

START_TEST(test_stress)
{
	thread_t *threads[10];
	netlink_socket_t *s;
	int i;

	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
	for (i = 0; i < countof(threads); i++)
	{
		threads[i] = thread_create(stress, s);
	}
	for (i = 0; i < countof(threads); i++)
	{
		threads[i]->join(threads[i]);
	}
	s->destroy(s);
}
END_TEST

START_TEST(test_stress_dump)
{
	thread_t *threads[10];
	netlink_socket_t *s;
	int i;

	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
	for (i = 0; i < countof(threads); i++)
	{
		threads[i] = thread_create(stress_dump, s);
	}
	for (i = 0; i < countof(threads); i++)
	{
		threads[i]->join(threads[i]);
	}
	s->destroy(s);
}
END_TEST

START_TEST(test_retransmit_success)
{
	netlink_socket_t *s;
	struct nlmsghdr *out;
	struct rtgenmsg *msg;
	size_t len;
	netlink_buf_t request = {
		.hdr = {
			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
			.nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH | NLM_F_ROOT,
			.nlmsg_type = RTM_GETLINK,
		},
	};

	drop_interval = 2;

	lib->settings->set_int(lib->settings,
							"%s.plugins.kernel-netlink.timeout", 100, lib->ns);
	lib->settings->set_int(lib->settings,
							"%s.plugins.kernel-netlink.retries", 1, lib->ns);

	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
	msg = NLMSG_DATA(&request.hdr);
	msg->rtgen_family = AF_UNSPEC;

	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
	free(out);
	s->destroy(s);

	drop_interval = 0;
}
END_TEST

START_TEST(test_retransmit_fail)
{
	netlink_socket_t *s;
	struct nlmsghdr *out;
	struct rtgenmsg *msg;
	size_t len;
	netlink_buf_t request = {
		.hdr = {
			.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
			.nlmsg_flags = NLM_F_REQUEST | NLM_F_MATCH | NLM_F_ROOT,
			.nlmsg_type = RTM_GETLINK,
		},
	};

	drop_interval = 1;

	lib->settings->set_int(lib->settings,
							"%s.plugins.kernel-netlink.timeout", 50, lib->ns);
	lib->settings->set_int(lib->settings,
							"%s.plugins.kernel-netlink.retries", 3, lib->ns);

	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
	msg = NLMSG_DATA(&request.hdr);
	msg->rtgen_family = AF_UNSPEC;

	ck_assert(s->send(s, &request.hdr, &out, &len) == OUT_OF_RES);
	s->destroy(s);

	drop_interval = 0;
}
END_TEST

Suite *socket_suite_create()
{
	Suite *s;
	TCase *tc;

	s = suite_create("netlink socket");

	tc = tcase_create("echo");
	tcase_add_loop_test(tc, test_echo, 0, 2);
	tcase_add_loop_test(tc, test_echo_dump, 0, 2);
	suite_add_tcase(s, tc);

	tc = tcase_create("stress");
	tcase_add_loop_test(tc, test_stress, 0, 2);
	tcase_add_loop_test(tc, test_stress_dump, 0, 2);
	suite_add_tcase(s, tc);

	tc = tcase_create("retransmit");
	tcase_add_loop_test(tc, test_retransmit_success, 0, 2);
	tcase_add_loop_test(tc, test_retransmit_fail, 0, 2);
	suite_add_tcase(s, tc);

	return s;
}
Commit	Line	Data
02794456 MW	1	/*
02794456 MW	2	* Copyright (C) 2014 Martin Willi
19ef2aec TB	3	*
19ef2aec TB	4	* Copyright (C) secunet Security Networks AG
02794456 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
	17	#include <test_suite.h>
	18
aa762bed MW	19	#include <threading/thread.h>
aa762bed MW	20
02794456 MW	21	#include "../kernel_netlink_shared.h"
02794456 MW	22
adb930ed MW	23	/**
	24	* Netlink message drop configuration
	25	*/
	26	static int drop_interval = 0;
	27
	28	/**
	29	* Netlink message drop hook
	30	*/
	31	bool netlink_msg_loss(struct nlmsghdr *hdr)
	32	{
	33	static refcount_t i;
	34
	35	if (drop_interval)
	36	{
	37	return ref_get(&i) % drop_interval == drop_interval - 1;
	38	}
	39	return FALSE;
	40	}
	41
02794456	42	START_TEST(test_echo)
4b41ea95 MW	43	{
	44	netlink_socket_t *s;
	45	struct nlmsghdr *out;
	46	struct rtmsg *msg;
	47	char dst[] = {
	48	127,0,0,1
	49	};
	50	size_t len;
	51	netlink_buf_t request = {
	52	.hdr = {
	53	.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)),
	54	.nlmsg_flags = NLM_F_REQUEST,
	55	.nlmsg_type = RTM_GETROUTE,
	56	},
	57	};
	58
	59	msg = NLMSG_DATA(&request.hdr);
	60	msg->rtm_family = AF_INET;
	61	netlink_add_attribute(&request.hdr, RTA_DST,
	62	chunk_from_thing(dst), sizeof(request));
	63
6c58fabe	64	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
4b41ea95 MW	65
	66	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
	67	ck_assert_int_eq(out->nlmsg_type, RTM_NEWROUTE);
	68	free(out);
	69	s->destroy(s);
	70	}
	71	END_TEST
	72
	73	START_TEST(test_echo_dump)
02794456 MW	74	{
	75	netlink_socket_t *s;
	76	struct nlmsghdr out, current;
	77	struct rtgenmsg *msg;
	78	size_t len;
	79	netlink_buf_t request = {
	80	.hdr = {
	81	.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
	82	.nlmsg_flags = NLM_F_REQUEST \| NLM_F_MATCH \| NLM_F_ROOT,
	83	.nlmsg_type = RTM_GETLINK,
	84	},
	85	};
	86
6c58fabe	87	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
02794456 MW	88	msg = NLMSG_DATA(&request.hdr);
	89	msg->rtgen_family = AF_UNSPEC;
	90
	91	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
	92	current = out;
	93	while (TRUE)
	94	{
	95	ck_assert(NLMSG_OK(current, len));
	96	if (current->nlmsg_type == NLMSG_DONE)
	97	{
	98	break;
	99	}
	100	ck_assert_int_eq(current->nlmsg_type, RTM_NEWLINK);
	101	current = NLMSG_NEXT(current, len);
	102	}
	103	free(out);
	104	s->destroy(s);
	105	}
	106	END_TEST
	107
aa762bed MW	108	CALLBACK(stress, void*,
aa762bed MW	109	netlink_socket_t *s)
4b41ea95 MW	110	{
	111	struct nlmsghdr *out;
	112	struct rtmsg *msg;
	113	char dst[] = {
	114	127,0,0,1
	115	};
	116	size_t len;
	117	int i;
	118	netlink_buf_t request = {
	119	.hdr = {
	120	.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtmsg)),
	121	.nlmsg_flags = NLM_F_REQUEST,
	122	.nlmsg_type = RTM_GETROUTE,
	123	},
	124	};
	125
	126	for (i = 0; i < 10; i++)
	127	{
	128	msg = NLMSG_DATA(&request.hdr);
	129	msg->rtm_family = AF_INET;
	130	netlink_add_attribute(&request.hdr, RTA_DST,
	131	chunk_from_thing(dst), sizeof(request));
	132
	133	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
	134	ck_assert_int_eq(out->nlmsg_type, RTM_NEWROUTE);
	135	free(out);
	136	}
	137	return NULL;
	138	}
	139
	140	CALLBACK(stress_dump, void*,
	141	netlink_socket_t *s)
aa762bed MW	142	{
	143	struct nlmsghdr out, current;
	144	struct rtgenmsg *msg;
	145	size_t len;
	146	int i;
	147	netlink_buf_t request = {
	148	.hdr = {
	149	.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
	150	.nlmsg_flags = NLM_F_REQUEST \| NLM_F_MATCH \| NLM_F_ROOT,
	151	.nlmsg_type = RTM_GETLINK,
	152	},
	153	};
	154
	155	msg = NLMSG_DATA(&request.hdr);
	156	msg->rtgen_family = AF_UNSPEC;
	157
	158	for (i = 0; i < 10; i++)
	159	{
	160	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
	161	current = out;
	162	while (TRUE)
	163	{
	164	ck_assert(NLMSG_OK(current, len));
	165	if (current->nlmsg_type == NLMSG_DONE)
	166	{
	167	break;
	168	}
	169	ck_assert_int_eq(current->nlmsg_type, RTM_NEWLINK);
	170	current = NLMSG_NEXT(current, len);
	171	}
	172	free(out);
	173	}
	174	return NULL;
	175	}
	176
	177	START_TEST(test_stress)
	178	{
	179	thread_t *threads[10];
	180	netlink_socket_t *s;
	181	int i;
	182
6c58fabe	183	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
aa762bed MW	184	for (i = 0; i < countof(threads); i++)
	185	{
	186	threads[i] = thread_create(stress, s);
	187	}
	188	for (i = 0; i < countof(threads); i++)
	189	{
	190	threads[i]->join(threads[i]);
	191	}
	192	s->destroy(s);
	193	}
	194	END_TEST
	195
4b41ea95 MW	196	START_TEST(test_stress_dump)
	197	{
	198	thread_t *threads[10];
	199	netlink_socket_t *s;
	200	int i;
	201
6c58fabe	202	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
4b41ea95 MW	203	for (i = 0; i < countof(threads); i++)
	204	{
	205	threads[i] = thread_create(stress_dump, s);
	206	}
	207	for (i = 0; i < countof(threads); i++)
	208	{
	209	threads[i]->join(threads[i]);
	210	}
	211	s->destroy(s);
	212	}
	213	END_TEST
	214
adb930ed MW	215	START_TEST(test_retransmit_success)
	216	{
	217	netlink_socket_t *s;
	218	struct nlmsghdr *out;
	219	struct rtgenmsg *msg;
	220	size_t len;
	221	netlink_buf_t request = {
	222	.hdr = {
	223	.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
	224	.nlmsg_flags = NLM_F_REQUEST \| NLM_F_MATCH \| NLM_F_ROOT,
	225	.nlmsg_type = RTM_GETLINK,
	226	},
	227	};
	228
	229	drop_interval = 2;
	230
	231	lib->settings->set_int(lib->settings,
	232	"%s.plugins.kernel-netlink.timeout", 100, lib->ns);
	233	lib->settings->set_int(lib->settings,
	234	"%s.plugins.kernel-netlink.retries", 1, lib->ns);
	235
6c58fabe	236	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
adb930ed MW	237	msg = NLMSG_DATA(&request.hdr);
	238	msg->rtgen_family = AF_UNSPEC;
	239
	240	ck_assert(s->send(s, &request.hdr, &out, &len) == SUCCESS);
	241	free(out);
	242	s->destroy(s);
	243
	244	drop_interval = 0;
	245	}
	246	END_TEST
	247
	248	START_TEST(test_retransmit_fail)
	249	{
	250	netlink_socket_t *s;
	251	struct nlmsghdr *out;
	252	struct rtgenmsg *msg;
	253	size_t len;
	254	netlink_buf_t request = {
	255	.hdr = {
	256	.nlmsg_len = NLMSG_LENGTH(sizeof(struct rtgenmsg)),
	257	.nlmsg_flags = NLM_F_REQUEST \| NLM_F_MATCH \| NLM_F_ROOT,
	258	.nlmsg_type = RTM_GETLINK,
	259	},
	260	};
	261
	262	drop_interval = 1;
	263
	264	lib->settings->set_int(lib->settings,
	265	"%s.plugins.kernel-netlink.timeout", 50, lib->ns);
	266	lib->settings->set_int(lib->settings,
	267	"%s.plugins.kernel-netlink.retries", 3, lib->ns);
	268
6c58fabe	269	s = netlink_socket_create(NETLINK_ROUTE, NULL, _i != 0);
adb930ed MW	270	msg = NLMSG_DATA(&request.hdr);
	271	msg->rtgen_family = AF_UNSPEC;
	272
	273	ck_assert(s->send(s, &request.hdr, &out, &len) == OUT_OF_RES);
	274	s->destroy(s);
	275
	276	drop_interval = 0;
	277	}
	278	END_TEST
	279
02794456 MW	280	Suite *socket_suite_create()
	281	{
	282	Suite *s;
	283	TCase *tc;
	284
	285	s = suite_create("netlink socket");
	286
	287	tc = tcase_create("echo");
6c58fabe MW	288	tcase_add_loop_test(tc, test_echo, 0, 2);
6c58fabe MW	289	tcase_add_loop_test(tc, test_echo_dump, 0, 2);
02794456 MW	290	suite_add_tcase(s, tc);
02794456 MW	291
aa762bed	292	tc = tcase_create("stress");
6c58fabe MW	293	tcase_add_loop_test(tc, test_stress, 0, 2);
6c58fabe MW	294	tcase_add_loop_test(tc, test_stress_dump, 0, 2);
aa762bed MW	295	suite_add_tcase(s, tc);
aa762bed MW	296
adb930ed	297	tc = tcase_create("retransmit");
6c58fabe MW	298	tcase_add_loop_test(tc, test_retransmit_success, 0, 2);
6c58fabe MW	299	tcase_add_loop_test(tc, test_retransmit_fail, 0, 2);
adb930ed MW	300	suite_add_tcase(s, tc);
adb930ed MW	301
02794456 MW	302	return s;
02794456 MW	303	}