/* * 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 <andriy.shevchenko@linux.intel.com>"); MODULE_LICENSE("Dual BSD/GPL");