static const unsigned char data_a[] = ".2.{....p..$}.4...1.....L...C...";
-static const char * const test_data_1_le[] __initconst = {
+static const char * const test_data_1[] __initconst = {
"be", "32", "db", "7b", "0a", "18", "93", "b2",
"70", "ba", "c4", "24", "7d", "83", "34", "9b",
"a6", "9c", "31", "ad", "9c", "0f", "ac", "e9",
"d14c", "9919", "b143", "0caf",
};
+static const char * const test_data_2_be[] __initconst = {
+ "be32", "db7b", "0a18", "93b2",
+ "70ba", "c424", "7d83", "349b",
+ "a69c", "31ad", "9c0f", "ace9",
+ "4cd1", "1999", "43b1", "af0c",
+};
+
static const char * const test_data_4_le[] __initconst = {
"7bdb32be", "b293180a", "24c4ba70", "9b34837d",
"ad319ca6", "e9ac0f9c", "9919d14c", "0cafb143",
};
+static const char * const test_data_4_be[] __initconst = {
+ "be32db7b", "0a1893b2", "70bac424", "7d83349b",
+ "a69c31ad", "9c0face9", "4cd11999", "43b1af0c",
+};
+
static const char * const test_data_8_le[] __initconst = {
"b293180a7bdb32be", "9b34837d24c4ba70",
"e9ac0f9cad319ca6", "0cafb1439919d14c",
};
+static const char * const test_data_8_be[] __initconst = {
+ "be32db7b0a1893b2", "70bac4247d83349b",
+ "a69c31ad9c0face9", "4cd1199943b1af0c",
+};
+
#define FILL_CHAR '#'
+static unsigned total_tests __initdata;
+static unsigned failed_tests __initdata;
+
static void __init test_hexdump_prepare_test(size_t len, int rowsize,
int groupsize, char *test,
size_t testlen, bool ascii)
size_t l = len;
int gs = groupsize, rs = rowsize;
unsigned int i;
+ const bool is_be = IS_ENABLED(CONFIG_CPU_BIG_ENDIAN);
if (rs != 16 && rs != 32)
rs = 16;
gs = 1;
if (gs == 8)
- result = test_data_8_le;
+ result = is_be ? test_data_8_be : test_data_8_le;
else if (gs == 4)
- result = test_data_4_le;
+ result = is_be ? test_data_4_be : test_data_4_le;
else if (gs == 2)
- result = test_data_2_le;
+ result = is_be ? test_data_2_be : test_data_2_le;
else
- result = test_data_1_le;
+ result = test_data_1;
/* hex dump */
p = test;
char test[TEST_HEXDUMP_BUF_SIZE];
char real[TEST_HEXDUMP_BUF_SIZE];
+ total_tests++;
+
memset(real, FILL_CHAR, sizeof(real));
hex_dump_to_buffer(data_b, len, rowsize, groupsize, real, sizeof(real),
ascii);
pr_err("Len: %zu row: %d group: %d\n", len, rowsize, groupsize);
pr_err("Result: '%s'\n", real);
pr_err("Expect: '%s'\n", test);
+ failed_tests++;
}
}
test_hexdump(len, rowsize, 1, ascii);
}
-static void __init test_hexdump_overflow(size_t buflen, bool ascii)
+static void __init test_hexdump_overflow(size_t buflen, size_t len,
+ int rowsize, int groupsize,
+ bool ascii)
{
+ char test[TEST_HEXDUMP_BUF_SIZE];
char buf[TEST_HEXDUMP_BUF_SIZE];
- const char *t = test_data_1_le[0];
- size_t len = 1;
- int rs = 16, gs = 1;
- int ae, he, e, r;
+ int rs = rowsize, gs = groupsize;
+ int ae, he, e, f, r;
bool a;
+ total_tests++;
+
memset(buf, FILL_CHAR, sizeof(buf));
r = hex_dump_to_buffer(data_b, len, rs, gs, buf, buflen, ascii);
e = ae;
else
e = he;
- buf[e + 2] = '\0';
-
- if (!buflen) {
- a = r == e && buf[0] == FILL_CHAR;
- } else if (buflen < 3) {
- a = r == e && buf[0] == '\0';
- } else if (buflen < 4) {
- a = r == e && !strcmp(buf, t);
- } else if (ascii) {
- if (buflen < 51)
- a = r == e && buf[buflen - 1] == '\0' && buf[buflen - 2] == FILL_CHAR;
- else
- a = r == e && buf[50] == '\0' && buf[49] == '.';
- } else {
- a = r == e && buf[e] == '\0';
+
+ f = min_t(int, e + 1, buflen);
+ if (buflen) {
+ test_hexdump_prepare_test(len, rs, gs, test, sizeof(test), ascii);
+ test[f - 1] = '\0';
}
+ memset(test + f, FILL_CHAR, sizeof(test) - f);
+
+ a = r == e && !memcmp(test, buf, TEST_HEXDUMP_BUF_SIZE);
+
+ buf[sizeof(buf) - 1] = '\0';
if (!a) {
- pr_err("Len: %zu rc: %u strlen: %zu\n", buflen, r, strlen(buf));
- pr_err("Result: '%s'\n", buf);
+ pr_err("Len: %zu buflen: %zu strlen: %zu\n",
+ len, buflen, strnlen(buf, sizeof(buf)));
+ pr_err("Result: %d '%s'\n", r, buf);
+ pr_err("Expect: %d '%s'\n", e, test);
+ failed_tests++;
}
}
+static void __init test_hexdump_overflow_set(size_t buflen, bool ascii)
+{
+ unsigned int i = 0;
+ int rs = (get_random_int() % 2 + 1) * 16;
+
+ do {
+ int gs = 1 << i;
+ size_t len = get_random_int() % rs + gs;
+
+ test_hexdump_overflow(buflen, rounddown(len, gs), rs, gs, ascii);
+ } while (i++ < 3);
+}
+
static int __init test_hexdump_init(void)
{
unsigned int i;
int rowsize;
- pr_info("Running tests...\n");
-
rowsize = (get_random_int() % 2 + 1) * 16;
for (i = 0; i < 16; i++)
test_hexdump_set(rowsize, false);
test_hexdump_set(rowsize, true);
for (i = 0; i <= TEST_HEXDUMP_BUF_SIZE; i++)
- test_hexdump_overflow(i, false);
+ test_hexdump_overflow_set(i, false);
for (i = 0; i <= TEST_HEXDUMP_BUF_SIZE; i++)
- test_hexdump_overflow(i, true);
+ test_hexdump_overflow_set(i, true);
- return -EINVAL;
+ 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_hexdump_init);
+
+static void __exit test_hexdump_exit(void)
+{
+ /* do nothing */
+}
+module_exit(test_hexdump_exit);
+
+MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
MODULE_LICENSE("Dual BSD/GPL");
projects / mirror_ubuntu-eoan-kernel.git / blobdiff