From 94ac2ab3fff96814d7460a27a0e9d004abbd4128 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Wed, 19 Jun 2024 23:00:37 +0200 Subject: Merging upstream version 6.9.2. Signed-off-by: Daniel Baumann --- lib/test-string_helpers.c | 609 ---------------------------------------------- 1 file changed, 609 deletions(-) delete mode 100644 lib/test-string_helpers.c (limited to 'lib/test-string_helpers.c') diff --git a/lib/test-string_helpers.c b/lib/test-string_helpers.c deleted file mode 100644 index 9a68849a5d..0000000000 --- a/lib/test-string_helpers.c +++ /dev/null @@ -1,609 +0,0 @@ -/* - * Test cases for lib/string_helpers.c module. - */ -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include -#include -#include -#include -#include -#include -#include - -static __init bool test_string_check_buf(const char *name, unsigned int flags, - char *in, size_t p, - char *out_real, size_t q_real, - char *out_test, size_t q_test) -{ - if (q_real == q_test && !memcmp(out_test, out_real, q_test)) - return true; - - pr_warn("Test '%s' failed: flags = %#x\n", name, flags); - - print_hex_dump(KERN_WARNING, "Input: ", DUMP_PREFIX_NONE, 16, 1, - in, p, true); - print_hex_dump(KERN_WARNING, "Expected: ", DUMP_PREFIX_NONE, 16, 1, - out_test, q_test, true); - print_hex_dump(KERN_WARNING, "Got: ", DUMP_PREFIX_NONE, 16, 1, - out_real, q_real, true); - - return false; -} - -struct test_string { - const char *in; - const char *out; - unsigned int flags; -}; - -static const struct test_string strings[] __initconst = { - { - .in = "\\f\\ \\n\\r\\t\\v", - .out = "\f\\ \n\r\t\v", - .flags = UNESCAPE_SPACE, - }, - { - .in = "\\40\\1\\387\\0064\\05\\040\\8a\\110\\777", - .out = " \001\00387\0064\005 \\8aH?7", - .flags = UNESCAPE_OCTAL, - }, - { - .in = "\\xv\\xa\\x2c\\xD\\x6f2", - .out = "\\xv\n,\ro2", - .flags = UNESCAPE_HEX, - }, - { - .in = "\\h\\\\\\\"\\a\\e\\", - .out = "\\h\\\"\a\e\\", - .flags = UNESCAPE_SPECIAL, - }, -}; - -static void __init test_string_unescape(const char *name, unsigned int flags, - bool inplace) -{ - int q_real = 256; - char *in = kmalloc(q_real, GFP_KERNEL); - char *out_test = kmalloc(q_real, GFP_KERNEL); - char *out_real = kmalloc(q_real, GFP_KERNEL); - int i, p = 0, q_test = 0; - - if (!in || !out_test || !out_real) - goto out; - - for (i = 0; i < ARRAY_SIZE(strings); i++) { - const char *s = strings[i].in; - int len = strlen(strings[i].in); - - /* Copy string to in buffer */ - memcpy(&in[p], s, len); - p += len; - - /* Copy expected result for given flags */ - if (flags & strings[i].flags) { - s = strings[i].out; - len = strlen(strings[i].out); - } - memcpy(&out_test[q_test], s, len); - q_test += len; - } - in[p++] = '\0'; - - /* Call string_unescape and compare result */ - if (inplace) { - memcpy(out_real, in, p); - if (flags == UNESCAPE_ANY) - q_real = string_unescape_any_inplace(out_real); - else - q_real = string_unescape_inplace(out_real, flags); - } else if (flags == UNESCAPE_ANY) { - q_real = string_unescape_any(in, out_real, q_real); - } else { - q_real = string_unescape(in, out_real, q_real, flags); - } - - test_string_check_buf(name, flags, in, p - 1, out_real, q_real, - out_test, q_test); -out: - kfree(out_real); - kfree(out_test); - kfree(in); -} - -struct test_string_1 { - const char *out; - unsigned int flags; -}; - -#define TEST_STRING_2_MAX_S1 32 -struct test_string_2 { - const char *in; - struct test_string_1 s1[TEST_STRING_2_MAX_S1]; -}; - -#define TEST_STRING_2_DICT_0 NULL -static const struct test_string_2 escape0[] __initconst = {{ - .in = "\f\\ \n\r\t\v", - .s1 = {{ - .out = "\\f\\ \\n\\r\\t\\v", - .flags = ESCAPE_SPACE, - },{ - .out = "\\f\\134\\040\\n\\r\\t\\v", - .flags = ESCAPE_SPACE | ESCAPE_OCTAL, - },{ - .out = "\\f\\x5c\\x20\\n\\r\\t\\v", - .flags = ESCAPE_SPACE | ESCAPE_HEX, - },{ - /* terminator */ - }} -},{ - .in = "\\h\\\"\a\e\\", - .s1 = {{ - .out = "\\\\h\\\\\\\"\\a\\e\\\\", - .flags = ESCAPE_SPECIAL, - },{ - .out = "\\\\\\150\\\\\\\"\\a\\e\\\\", - .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL, - },{ - .out = "\\\\\\x68\\\\\\\"\\a\\e\\\\", - .flags = ESCAPE_SPECIAL | ESCAPE_HEX, - },{ - /* terminator */ - }} -},{ - .in = "\eb \\C\007\"\x90\r]", - .s1 = {{ - .out = "\eb \\C\007\"\x90\\r]", - .flags = ESCAPE_SPACE, - },{ - .out = "\\eb \\\\C\\a\\\"\x90\r]", - .flags = ESCAPE_SPECIAL, - },{ - .out = "\\eb \\\\C\\a\\\"\x90\\r]", - .flags = ESCAPE_SPACE | ESCAPE_SPECIAL, - },{ - .out = "\\033\\142\\040\\134\\103\\007\\042\\220\\015\\135", - .flags = ESCAPE_OCTAL, - },{ - .out = "\\033\\142\\040\\134\\103\\007\\042\\220\\r\\135", - .flags = ESCAPE_SPACE | ESCAPE_OCTAL, - },{ - .out = "\\e\\142\\040\\\\\\103\\a\\\"\\220\\015\\135", - .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL, - },{ - .out = "\\e\\142\\040\\\\\\103\\a\\\"\\220\\r\\135", - .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_OCTAL, - },{ - .out = "\eb \\C\007\"\x90\r]", - .flags = ESCAPE_NP, - },{ - .out = "\eb \\C\007\"\x90\\r]", - .flags = ESCAPE_SPACE | ESCAPE_NP, - },{ - .out = "\\eb \\C\\a\"\x90\r]", - .flags = ESCAPE_SPECIAL | ESCAPE_NP, - },{ - .out = "\\eb \\C\\a\"\x90\\r]", - .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NP, - },{ - .out = "\\033b \\C\\007\"\\220\\015]", - .flags = ESCAPE_OCTAL | ESCAPE_NP, - },{ - .out = "\\033b \\C\\007\"\\220\\r]", - .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NP, - },{ - .out = "\\eb \\C\\a\"\\220\\r]", - .flags = ESCAPE_SPECIAL | ESCAPE_SPACE | ESCAPE_OCTAL | - ESCAPE_NP, - },{ - .out = "\\x1bb \\C\\x07\"\\x90\\x0d]", - .flags = ESCAPE_NP | ESCAPE_HEX, - },{ - /* terminator */ - }} -},{ - .in = "\007 \eb\"\x90\xCF\r", - .s1 = {{ - .out = "\007 \eb\"\\220\\317\r", - .flags = ESCAPE_OCTAL | ESCAPE_NA, - },{ - .out = "\007 \eb\"\\x90\\xcf\r", - .flags = ESCAPE_HEX | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\xCF\r", - .flags = ESCAPE_NA, - },{ - /* terminator */ - }} -},{ - /* terminator */ -}}; - -#define TEST_STRING_2_DICT_1 "b\\ \t\r\xCF" -static const struct test_string_2 escape1[] __initconst = {{ - .in = "\f\\ \n\r\t\v", - .s1 = {{ - .out = "\f\\134\\040\n\\015\\011\v", - .flags = ESCAPE_OCTAL, - },{ - .out = "\f\\x5c\\x20\n\\x0d\\x09\v", - .flags = ESCAPE_HEX, - },{ - .out = "\f\\134\\040\n\\015\\011\v", - .flags = ESCAPE_ANY | ESCAPE_APPEND, - },{ - .out = "\\014\\134\\040\\012\\015\\011\\013", - .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NAP, - },{ - .out = "\\x0c\\x5c\\x20\\x0a\\x0d\\x09\\x0b", - .flags = ESCAPE_HEX | ESCAPE_APPEND | ESCAPE_NAP, - },{ - .out = "\f\\134\\040\n\\015\\011\v", - .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NA, - },{ - .out = "\f\\x5c\\x20\n\\x0d\\x09\v", - .flags = ESCAPE_HEX | ESCAPE_APPEND | ESCAPE_NA, - },{ - /* terminator */ - }} -},{ - .in = "\\h\\\"\a\xCF\e\\", - .s1 = {{ - .out = "\\134h\\134\"\a\\317\e\\134", - .flags = ESCAPE_OCTAL, - },{ - .out = "\\134h\\134\"\a\\317\e\\134", - .flags = ESCAPE_ANY | ESCAPE_APPEND, - },{ - .out = "\\134h\\134\"\\007\\317\\033\\134", - .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NAP, - },{ - .out = "\\134h\\134\"\a\\317\e\\134", - .flags = ESCAPE_OCTAL | ESCAPE_APPEND | ESCAPE_NA, - },{ - /* terminator */ - }} -},{ - .in = "\eb \\C\007\"\x90\r]", - .s1 = {{ - .out = "\e\\142\\040\\134C\007\"\x90\\015]", - .flags = ESCAPE_OCTAL, - },{ - /* terminator */ - }} -},{ - .in = "\007 \eb\"\x90\xCF\r", - .s1 = {{ - .out = "\007 \eb\"\x90\xCF\r", - .flags = ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\xCF\r", - .flags = ESCAPE_SPACE | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\xCF\r", - .flags = ESCAPE_SPECIAL | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\xCF\r", - .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\\317\r", - .flags = ESCAPE_OCTAL | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\\317\r", - .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\\317\r", - .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\\317\r", - .flags = ESCAPE_ANY | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\\xcf\r", - .flags = ESCAPE_HEX | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\\xcf\r", - .flags = ESCAPE_SPACE | ESCAPE_HEX | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\\xcf\r", - .flags = ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NA, - },{ - .out = "\007 \eb\"\x90\\xcf\r", - .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NA, - },{ - /* terminator */ - }} -},{ - .in = "\007 \eb\"\x90\xCF\r", - .s1 = {{ - .out = "\007 \eb\"\x90\xCF\r", - .flags = ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\xCF\\r", - .flags = ESCAPE_SPACE | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\xCF\r", - .flags = ESCAPE_SPECIAL | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\xCF\\r", - .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\\317\\015", - .flags = ESCAPE_OCTAL | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\\317\\r", - .flags = ESCAPE_SPACE | ESCAPE_OCTAL | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\\317\\015", - .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\\317\r", - .flags = ESCAPE_ANY | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\\xcf\\x0d", - .flags = ESCAPE_HEX | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\\xcf\\r", - .flags = ESCAPE_SPACE | ESCAPE_HEX | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\\xcf\\x0d", - .flags = ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NAP, - },{ - .out = "\007 \eb\"\x90\\xcf\\r", - .flags = ESCAPE_SPACE | ESCAPE_SPECIAL | ESCAPE_HEX | ESCAPE_NAP, - },{ - /* terminator */ - }} -},{ - /* terminator */ -}}; - -static const struct test_string strings_upper[] __initconst = { - { - .in = "abcdefgh1234567890test", - .out = "ABCDEFGH1234567890TEST", - }, - { - .in = "abCdeFgH1234567890TesT", - .out = "ABCDEFGH1234567890TEST", - }, -}; - -static const struct test_string strings_lower[] __initconst = { - { - .in = "ABCDEFGH1234567890TEST", - .out = "abcdefgh1234567890test", - }, - { - .in = "abCdeFgH1234567890TesT", - .out = "abcdefgh1234567890test", - }, -}; - -static __init const char *test_string_find_match(const struct test_string_2 *s2, - unsigned int flags) -{ - const struct test_string_1 *s1 = s2->s1; - unsigned int i; - - if (!flags) - return s2->in; - - /* Test cases are NULL-aware */ - flags &= ~ESCAPE_NULL; - - /* ESCAPE_OCTAL has a higher priority */ - if (flags & ESCAPE_OCTAL) - flags &= ~ESCAPE_HEX; - - for (i = 0; i < TEST_STRING_2_MAX_S1 && s1->out; i++, s1++) - if (s1->flags == flags) - return s1->out; - return NULL; -} - -static __init void -test_string_escape_overflow(const char *in, int p, unsigned int flags, const char *esc, - int q_test, const char *name) -{ - int q_real; - - q_real = string_escape_mem(in, p, NULL, 0, flags, esc); - if (q_real != q_test) - pr_warn("Test '%s' failed: flags = %#x, osz = 0, expected %d, got %d\n", - name, flags, q_test, q_real); -} - -static __init void test_string_escape(const char *name, - const struct test_string_2 *s2, - unsigned int flags, const char *esc) -{ - size_t out_size = 512; - char *out_test = kmalloc(out_size, GFP_KERNEL); - char *out_real = kmalloc(out_size, GFP_KERNEL); - char *in = kmalloc(256, GFP_KERNEL); - int p = 0, q_test = 0; - int q_real; - - if (!out_test || !out_real || !in) - goto out; - - for (; s2->in; s2++) { - const char *out; - int len; - - /* NULL injection */ - if (flags & ESCAPE_NULL) { - in[p++] = '\0'; - /* '\0' passes isascii() test */ - if (flags & ESCAPE_NA && !(flags & ESCAPE_APPEND && esc)) { - out_test[q_test++] = '\0'; - } else { - out_test[q_test++] = '\\'; - out_test[q_test++] = '0'; - } - } - - /* Don't try strings that have no output */ - out = test_string_find_match(s2, flags); - if (!out) - continue; - - /* Copy string to in buffer */ - len = strlen(s2->in); - memcpy(&in[p], s2->in, len); - p += len; - - /* Copy expected result for given flags */ - len = strlen(out); - memcpy(&out_test[q_test], out, len); - q_test += len; - } - - q_real = string_escape_mem(in, p, out_real, out_size, flags, esc); - - test_string_check_buf(name, flags, in, p, out_real, q_real, out_test, - q_test); - - test_string_escape_overflow(in, p, flags, esc, q_test, name); - -out: - kfree(in); - kfree(out_real); - kfree(out_test); -} - -#define string_get_size_maxbuf 16 -#define test_string_get_size_one(size, blk_size, exp_result10, exp_result2) \ - do { \ - BUILD_BUG_ON(sizeof(exp_result10) >= string_get_size_maxbuf); \ - BUILD_BUG_ON(sizeof(exp_result2) >= string_get_size_maxbuf); \ - __test_string_get_size((size), (blk_size), (exp_result10), \ - (exp_result2)); \ - } while (0) - - -static __init void test_string_get_size_check(const char *units, - const char *exp, - char *res, - const u64 size, - const u64 blk_size) -{ - if (!memcmp(res, exp, strlen(exp) + 1)) - return; - - res[string_get_size_maxbuf - 1] = '\0'; - - pr_warn("Test 'test_string_get_size' failed!\n"); - pr_warn("string_get_size(size = %llu, blk_size = %llu, units = %s)\n", - size, blk_size, units); - pr_warn("expected: '%s', got '%s'\n", exp, res); -} - -static __init void __test_string_get_size(const u64 size, const u64 blk_size, - const char *exp_result10, - const char *exp_result2) -{ - char buf10[string_get_size_maxbuf]; - char buf2[string_get_size_maxbuf]; - - string_get_size(size, blk_size, STRING_UNITS_10, buf10, sizeof(buf10)); - string_get_size(size, blk_size, STRING_UNITS_2, buf2, sizeof(buf2)); - - test_string_get_size_check("STRING_UNITS_10", exp_result10, buf10, - size, blk_size); - - test_string_get_size_check("STRING_UNITS_2", exp_result2, buf2, - size, blk_size); -} - -static __init void test_string_get_size(void) -{ - /* small values */ - test_string_get_size_one(0, 512, "0 B", "0 B"); - test_string_get_size_one(1, 512, "512 B", "512 B"); - test_string_get_size_one(1100, 1, "1.10 kB", "1.07 KiB"); - - /* normal values */ - test_string_get_size_one(16384, 512, "8.39 MB", "8.00 MiB"); - test_string_get_size_one(500118192, 512, "256 GB", "238 GiB"); - test_string_get_size_one(8192, 4096, "33.6 MB", "32.0 MiB"); - - /* weird block sizes */ - test_string_get_size_one(3000, 1900, "5.70 MB", "5.44 MiB"); - - /* huge values */ - test_string_get_size_one(U64_MAX, 4096, "75.6 ZB", "64.0 ZiB"); - test_string_get_size_one(4096, U64_MAX, "75.6 ZB", "64.0 ZiB"); -} - -static void __init test_string_upper_lower(void) -{ - char *dst; - int i; - - for (i = 0; i < ARRAY_SIZE(strings_upper); i++) { - const char *s = strings_upper[i].in; - int len = strlen(strings_upper[i].in) + 1; - - dst = kmalloc(len, GFP_KERNEL); - if (!dst) - return; - - string_upper(dst, s); - if (memcmp(dst, strings_upper[i].out, len)) { - pr_warn("Test 'string_upper' failed : expected %s, got %s!\n", - strings_upper[i].out, dst); - kfree(dst); - return; - } - kfree(dst); - } - - for (i = 0; i < ARRAY_SIZE(strings_lower); i++) { - const char *s = strings_lower[i].in; - int len = strlen(strings_lower[i].in) + 1; - - dst = kmalloc(len, GFP_KERNEL); - if (!dst) - return; - - string_lower(dst, s); - if (memcmp(dst, strings_lower[i].out, len)) { - pr_warn("Test 'string_lower failed : : expected %s, got %s!\n", - strings_lower[i].out, dst); - kfree(dst); - return; - } - kfree(dst); - } -} - -static int __init test_string_helpers_init(void) -{ - unsigned int i; - - pr_info("Running tests...\n"); - for (i = 0; i < UNESCAPE_ALL_MASK + 1; i++) - test_string_unescape("unescape", i, false); - test_string_unescape("unescape inplace", - get_random_u32_below(UNESCAPE_ALL_MASK + 1), true); - - /* Without dictionary */ - for (i = 0; i < ESCAPE_ALL_MASK + 1; i++) - test_string_escape("escape 0", escape0, i, TEST_STRING_2_DICT_0); - - /* With dictionary */ - for (i = 0; i < ESCAPE_ALL_MASK + 1; i++) - test_string_escape("escape 1", escape1, i, TEST_STRING_2_DICT_1); - - /* Test string_get_size() */ - test_string_get_size(); - - /* Test string upper(), string_lower() */ - test_string_upper_lower(); - - return -EINVAL; -} -module_init(test_string_helpers_init); -MODULE_LICENSE("Dual BSD/GPL"); -- cgit v1.2.3