cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

test_uuid.c (3485B)

      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
     12struct test_uuid_data {
     13	const char *uuid;
     14	guid_t le;
     15	uuid_t be;
     16};
     17
     18static const struct test_uuid_data test_uuid_test_data[] = {
     19	{
     20		.uuid = "c33f4995-3701-450e-9fbf-206a2e98e576",
     21		.le = GUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
     22		.be = UUID_INIT(0xc33f4995, 0x3701, 0x450e, 0x9f, 0xbf, 0x20, 0x6a, 0x2e, 0x98, 0xe5, 0x76),
     23	},
     24	{
     25		.uuid = "64b4371c-77c1-48f9-8221-29f054fc023b",
     26		.le = GUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
     27		.be = UUID_INIT(0x64b4371c, 0x77c1, 0x48f9, 0x82, 0x21, 0x29, 0xf0, 0x54, 0xfc, 0x02, 0x3b),
     28	},
     29	{
     30		.uuid = "0cb4ddff-a545-4401-9d06-688af53e7f84",
     31		.le = GUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
     32		.be = UUID_INIT(0x0cb4ddff, 0xa545, 0x4401, 0x9d, 0x06, 0x68, 0x8a, 0xf5, 0x3e, 0x7f, 0x84),
     33	},
     34};
     35
     36static 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
     42static unsigned total_tests __initdata;
     43static unsigned failed_tests __initdata;
     44
     45static 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
     62static void __init test_uuid_test(const struct test_uuid_data *data)
     63{
     64	guid_t le;
     65	uuid_t be;
     66	char buf[48];
     67
     68	/* LE */
     69	total_tests++;
     70	if (guid_parse(data->uuid, &le))
     71		test_uuid_failed("conversion", false, false, data->uuid, NULL);
     72
     73	total_tests++;
     74	if (!guid_equal(&data->le, &le)) {
     75		sprintf(buf, "%pUl", &le);
     76		test_uuid_failed("cmp", false, false, data->uuid, buf);
     77	}
     78
     79	/* BE */
     80	total_tests++;
     81	if (uuid_parse(data->uuid, &be))
     82		test_uuid_failed("conversion", false, true, data->uuid, NULL);
     83
     84	total_tests++;
     85	if (!uuid_equal(&data->be, &be)) {
     86		sprintf(buf, "%pUb", &be);
     87		test_uuid_failed("cmp", false, true, data->uuid, buf);
     88	}
     89}
     90
     91static void __init test_uuid_wrong(const char *data)
     92{
     93	guid_t le;
     94	uuid_t be;
     95
     96	/* LE */
     97	total_tests++;
     98	if (!guid_parse(data, &le))
     99		test_uuid_failed("negative", true, false, data, NULL);
    100
    101	/* BE */
    102	total_tests++;
    103	if (!uuid_parse(data, &be))
    104		test_uuid_failed("negative", true, true, data, NULL);
    105}
    106
    107static 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}
    124module_init(test_uuid_init);
    125
    126static void __exit test_uuid_exit(void)
    127{
    128	/* do nothing */
    129}
    130module_exit(test_uuid_exit);
    131
    132MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
    133MODULE_LICENSE("Dual BSD/GPL");