/* * Test cases for lib/string_helpers.c module. */#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/init.h>#include <linux/kernel.h>#include <linux/slab.h>#include <linux/module.h>#include <linux/random.h>#include <linux/string.h>#include <linux/string_helpers.h> 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 = %u\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 32struct test_string_2 { const char *in; struct test_string_1 s1[TEST_STRING_2_MAX_S1];}; #define TEST_STRING_2_DICT_0 NULLstatic 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\\\\\\042\\a\\e\\\\", .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL, },{ .out = "\\\\\\x68\\\\\\x22\\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\\042\\220\\015\\135", .flags = ESCAPE_SPECIAL | ESCAPE_OCTAL, },{ .out = "\\e\\142\\040\\\\\\103\\a\\042\\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 */ }},},{ /* terminator */}}; #define TEST_STRING_2_DICT_1 "b\\ \t\r"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, },{ /* terminator */ }},},{ .in = "\\h\\\"\a\e\\", .s1 = {{ .out = "\\134h\\134\"\a\e\\134", .flags = ESCAPE_OCTAL, },{ /* terminator */ }},},{ .in = "\eb \\C\007\"\x90\r]", .s1 = {{ .out = "\e\\142\\040\\134C\007\"\x90\\015]", .flags = ESCAPE_OCTAL, },{ /* terminator */ }},},{ /* terminator */}}; 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 voidtest_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 = %u, 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'; 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 int __init test_string_helpers_init(void){ unsigned int i; pr_info("Running tests...\n"); for (i = 0; i < UNESCAPE_ANY + 1; i++) test_string_unescape("unescape", i, false); test_string_unescape("unescape inplace", get_random_int() % (UNESCAPE_ANY + 1), true); /* Without dictionary */ for (i = 0; i < (ESCAPE_ANY_NP | ESCAPE_HEX) + 1; i++) test_string_escape("escape 0", escape0, i, TEST_STRING_2_DICT_0); /* With dictionary */ for (i = 0; i < (ESCAPE_ANY_NP | ESCAPE_HEX) + 1; i++) test_string_escape("escape 1", escape1, i, TEST_STRING_2_DICT_1); /* Test string_get_size() */ test_string_get_size(); return -EINVAL;}module_init(test_string_helpers_init);MODULE_LICENSE("Dual BSD/GPL");
/*
* Test cases for lib/string_helpers.c module.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/random.h>
#include <linux/string.h>
#include <linux/string_helpers.h>
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 = %u\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\\\\\\042\\a\\e\\\\",
.flags = ESCAPE_SPECIAL | ESCAPE_OCTAL,
},{
.out = "\\\\\\x68\\\\\\x22\\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\\042\\220\\015\\135",
.flags = ESCAPE_SPECIAL | ESCAPE_OCTAL,
},{
.out = "\\e\\142\\040\\\\\\103\\a\\042\\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 */
}},
},{
/* terminator */
}};
#define TEST_STRING_2_DICT_1 "b\\ \t\r"
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,
},{
/* terminator */
}},
},{
.in = "\\h\\\"\a\e\\",
.s1 = {{
.out = "\\134h\\134\"\a\e\\134",
.flags = ESCAPE_OCTAL,
},{
/* terminator */
}},
},{
.in = "\eb \\C\007\"\x90\r]",
.s1 = {{
.out = "\e\\142\\040\\134C\007\"\x90\\015]",
.flags = ESCAPE_OCTAL,
},{
/* terminator */
}},
},{
/* terminator */
}};
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 = %u, 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';
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 int __init test_string_helpers_init(void)
{
unsigned int i;
pr_info("Running tests...\n");
for (i = 0; i < UNESCAPE_ANY + 1; i++)
test_string_unescape("unescape", i, false);
test_string_unescape("unescape inplace",
get_random_int() % (UNESCAPE_ANY + 1), true);
/* Without dictionary */
for (i = 0; i < (ESCAPE_ANY_NP | ESCAPE_HEX) + 1; i++)
test_string_escape("escape 0", escape0, i, TEST_STRING_2_DICT_0);
/* With dictionary */
for (i = 0; i < (ESCAPE_ANY_NP | ESCAPE_HEX) + 1; i++)
test_string_escape("escape 1", escape1, i, TEST_STRING_2_DICT_1);
/* Test string_get_size() */
test_string_get_size();
return -EINVAL;
}
module_init(test_string_helpers_init);
MODULE_LICENSE("Dual BSD/GPL");