[linux.git] / lib / test_uuid.c

/*
 * Test cases for lib/uuid.c module.
 */
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/uuid.h>

struct test_uuid_data {
	const char *uuid;
	guid_t le;
	uuid_t be;
};

static const struct test_uuid_data test_uuid_test_data[] = {
	{
		.uuid = "c33f4995-3701-450e-9fbf-206a2e98e576",
		.le = GUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
		.be = UUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
	},
	{
		.uuid = "64b4371c-77c1-48f9-8221-29f054fc023b",
		.le = GUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
		.be = UUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
	},
	{
		.uuid = "0cb4ddff-a545-4401-9d06-688af53e7f84",
		.le = GUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
		.be = UUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
	},
};

static const char * const test_uuid_wrong_data[] = {
	"c33f4995-3701-450e-9fbf206a2e98e576 ",	/* no hyphen(s) */
	"64b4371c-77c1-48f9-8221-29f054XX023b",	/* invalid character(s) */
	"0cb4ddff-a545-4401-9d06-688af53e",	/* not enough data */
};

static unsigned total_tests __initdata;
static unsigned failed_tests __initdata;

static void __init test_uuid_failed(const char *prefix, bool wrong, bool be,
				    const char *data, const char *actual)
{
	pr_err("%s test #%u %s %s data: '%s'\n",
	       prefix,
	       total_tests,
	       wrong ? "passed on wrong" : "failed on",
	       be ? "BE" : "LE",
	       data);
	if (actual && *actual)
		pr_err("%s test #%u actual data: '%s'\n",
		       prefix,
		       total_tests,
		       actual);
	failed_tests++;
}

static void __init test_uuid_test(const struct test_uuid_data *data)
{
	guid_t le;
	uuid_t be;
	char buf[48];

	/* LE */
	total_tests++;
	if (guid_parse(data->uuid, &le))
		test_uuid_failed("conversion", false, false, data->uuid, NULL);

	total_tests++;
	if (!guid_equal(&data->le, &le)) {
		sprintf(buf, "%pUl", &le);
		test_uuid_failed("cmp", false, false, data->uuid, buf);
	}

	/* BE */
	total_tests++;
	if (uuid_parse(data->uuid, &be))
		test_uuid_failed("conversion", false, true, data->uuid, NULL);

	total_tests++;
	if (!uuid_equal(&data->be, &be)) {
		sprintf(buf, "%pUb", &be);
		test_uuid_failed("cmp", false, true, data->uuid, buf);
	}
}

static void __init test_uuid_wrong(const char *data)
{
	guid_t le;
	uuid_t be;

	/* LE */
	total_tests++;
	if (!guid_parse(data, &le))
		test_uuid_failed("negative", true, false, data, NULL);

	/* BE */
	total_tests++;
	if (!uuid_parse(data, &be))
		test_uuid_failed("negative", true, true, data, NULL);
}

static int __init test_uuid_init(void)
{
	unsigned int i;

	for (i = 0; i < ARRAY_SIZE(test_uuid_test_data); i++)
		test_uuid_test(&test_uuid_test_data[i]);

	for (i = 0; i < ARRAY_SIZE(test_uuid_wrong_data); i++)
		test_uuid_wrong(test_uuid_wrong_data[i]);

	if (failed_tests == 0)
		pr_info("all %u tests passed\n", total_tests);
	else
		pr_err("failed %u out of %u tests\n", failed_tests, total_tests);

	return failed_tests ? -EINVAL : 0;
}
module_init(test_uuid_init);

static void __exit test_uuid_exit(void)
{
	/* do nothing */
}
module_exit(test_uuid_exit);

MODULE_AUTHOR("Andy Shevchenko <[email protected]>");
MODULE_LICENSE("Dual BSD/GPL");
Commit	Line	Data
cfaff0e5 AS	1	/*
	2	* Test cases for lib/uuid.c module.
	3	*/
	4	#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
	5
	6	#include <linux/init.h>
	7	#include <linux/kernel.h>
	8	#include <linux/module.h>
	9	#include <linux/string.h>
	10	#include <linux/uuid.h>
	11
	12	struct test_uuid_data {
	13	const char *uuid;
f9727a17 CH	14	guid_t le;
f9727a17 CH	15	uuid_t be;
cfaff0e5 AS	16	};
	17
	18	static const struct test_uuid_data test_uuid_test_data[] = {
	19	{
	20	.uuid = "c33f4995-3701-450e-9fbf-206a2e98e576",
f9727a17 CH	21	.le = GUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
f9727a17 CH	22	.be = UUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
cfaff0e5 AS	23	},
	24	{
	25	.uuid = "64b4371c-77c1-48f9-8221-29f054fc023b",
f9727a17 CH	26	.le = GUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
f9727a17 CH	27	.be = UUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
cfaff0e5 AS	28	},
	29	{
	30	.uuid = "0cb4ddff-a545-4401-9d06-688af53e7f84",
f9727a17 CH	31	.le = GUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
f9727a17 CH	32	.be = UUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
cfaff0e5 AS	33	},
	34	};
	35
	36	static const char * const test_uuid_wrong_data[] = {
	37	"c33f4995-3701-450e-9fbf206a2e98e576 ", /* no hyphen(s) */
	38	"64b4371c-77c1-48f9-8221-29f054XX023b", /* invalid character(s) */
	39	"0cb4ddff-a545-4401-9d06-688af53e", /* not enough data */
	40	};
	41
	42	static unsigned total_tests __initdata;
	43	static unsigned failed_tests __initdata;
	44
	45	static void __init test_uuid_failed(const char *prefix, bool wrong, bool be,
	46	const char data, const char actual)
	47	{
	48	pr_err("%s test #%u %s %s data: '%s'\n",
	49	prefix,
	50	total_tests,
	51	wrong ? "passed on wrong" : "failed on",
	52	be ? "BE" : "LE",
	53	data);
	54	if (actual && *actual)
	55	pr_err("%s test #%u actual data: '%s'\n",
	56	prefix,
	57	total_tests,
	58	actual);
	59	failed_tests++;
	60	}
	61
	62	static void __init test_uuid_test(const struct test_uuid_data *data)
	63	{
f9727a17 CH	64	guid_t le;
f9727a17 CH	65	uuid_t be;
cfaff0e5 AS	66	char buf[48];
	67
	68	/* LE */
	69	total_tests++;
f9727a17	70	if (guid_parse(data->uuid, &le))
cfaff0e5 AS	71	test_uuid_failed("conversion", false, false, data->uuid, NULL);
	72
	73	total_tests++;
df33767d	74	if (!guid_equal(&data->le, &le)) {
cfaff0e5 AS	75	sprintf(buf, "%pUl", &le);
	76	test_uuid_failed("cmp", false, false, data->uuid, buf);
	77	}
	78
	79	/* BE */
	80	total_tests++;
f9727a17	81	if (uuid_parse(data->uuid, &be))
cfaff0e5 AS	82	test_uuid_failed("conversion", false, true, data->uuid, NULL);
	83
	84	total_tests++;
d9cf4841	85	if (!uuid_equal(&data->be, &be)) {
cfaff0e5 AS	86	sprintf(buf, "%pUb", &be);
	87	test_uuid_failed("cmp", false, true, data->uuid, buf);
	88	}
	89	}
	90
	91	static void __init test_uuid_wrong(const char *data)
	92	{
f9727a17 CH	93	guid_t le;
f9727a17 CH	94	uuid_t be;
cfaff0e5 AS	95
	96	/* LE */
	97	total_tests++;
f9727a17	98	if (!guid_parse(data, &le))
cfaff0e5 AS	99	test_uuid_failed("negative", true, false, data, NULL);
	100
	101	/* BE */
	102	total_tests++;
f9727a17	103	if (!uuid_parse(data, &be))
cfaff0e5 AS	104	test_uuid_failed("negative", true, true, data, NULL);
	105	}
	106
	107	static int __init test_uuid_init(void)
	108	{
	109	unsigned int i;
	110
	111	for (i = 0; i < ARRAY_SIZE(test_uuid_test_data); i++)
	112	test_uuid_test(&test_uuid_test_data[i]);
	113
	114	for (i = 0; i < ARRAY_SIZE(test_uuid_wrong_data); i++)
	115	test_uuid_wrong(test_uuid_wrong_data[i]);
	116
	117	if (failed_tests == 0)
	118	pr_info("all %u tests passed\n", total_tests);
	119	else
	120	pr_err("failed %u out of %u tests\n", failed_tests, total_tests);
	121
	122	return failed_tests ? -EINVAL : 0;
	123	}
	124	module_init(test_uuid_init);
	125
	126	static void __exit test_uuid_exit(void)
	127	{
	128	/* do nothing */
	129	}
	130	module_exit(test_uuid_exit);
	131
	132	MODULE_AUTHOR("Andy Shevchenko <[email protected]>");
	133	MODULE_LICENSE("Dual BSD/GPL");