135 lines · c
1/*2 * Test cases for lib/uuid.c module.3 */4#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt5 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 else120 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_DESCRIPTION("Test cases for lib/uuid.c module");134MODULE_LICENSE("Dual BSD/GPL");135