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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <sys/stat.h>
#include "devnum-util.h"
#include "path-util.h"
#include "stat-util.h"
#include "tests.h"
TEST(parse_devnum) {
dev_t dev;
assert_se(parse_devnum("", &dev) == -EINVAL);
assert_se(parse_devnum("junk", &dev) == -EINVAL);
assert_se(parse_devnum("0", &dev) == -EINVAL);
assert_se(parse_devnum("5", &dev) == -EINVAL);
assert_se(parse_devnum("5:", &dev) == -EINVAL);
assert_se(parse_devnum(":5", &dev) == -EINVAL);
assert_se(parse_devnum("-1:-1", &dev) == -EINVAL);
#if SIZEOF_DEV_T < 8
assert_se(parse_devnum("4294967295:4294967295", &dev) == -EINVAL);
#endif
assert_se(parse_devnum("8:11", &dev) >= 0 && major(dev) == 8 && minor(dev) == 11);
assert_se(parse_devnum("0:0", &dev) >= 0 && major(dev) == 0 && minor(dev) == 0);
}
TEST(device_major_minor_valid) {
/* on glibc dev_t is 64-bit, even though in the kernel it is only 32-bit */
assert_cc(sizeof(dev_t) == sizeof(uint64_t));
assert_se(DEVICE_MAJOR_VALID(0U));
assert_se(DEVICE_MINOR_VALID(0U));
assert_se(DEVICE_MAJOR_VALID(1U));
assert_se(DEVICE_MINOR_VALID(1U));
assert_se(!DEVICE_MAJOR_VALID(-1U));
assert_se(!DEVICE_MINOR_VALID(-1U));
assert_se(DEVICE_MAJOR_VALID(1U << 10));
assert_se(DEVICE_MINOR_VALID(1U << 10));
assert_se(DEVICE_MAJOR_VALID((1U << 12) - 1));
assert_se(DEVICE_MINOR_VALID((1U << 20) - 1));
assert_se(!DEVICE_MAJOR_VALID((1U << 12)));
assert_se(!DEVICE_MINOR_VALID((1U << 20)));
assert_se(!DEVICE_MAJOR_VALID(1U << 25));
assert_se(!DEVICE_MINOR_VALID(1U << 25));
assert_se(!DEVICE_MAJOR_VALID(UINT32_MAX));
assert_se(!DEVICE_MINOR_VALID(UINT32_MAX));
assert_se(!DEVICE_MAJOR_VALID(UINT64_MAX));
assert_se(!DEVICE_MINOR_VALID(UINT64_MAX));
assert_se(DEVICE_MAJOR_VALID(major(0)));
assert_se(DEVICE_MINOR_VALID(minor(0)));
}
static void test_device_path_make_canonical_one(const char *path) {
_cleanup_free_ char *resolved = NULL, *raw = NULL;
struct stat st;
dev_t devno;
mode_t mode;
int r;
log_debug("> %s", path);
if (stat(path, &st) < 0) {
assert_se(errno == ENOENT);
log_notice("Path %s not found, skipping test", path);
return;
}
r = device_path_make_canonical(st.st_mode, st.st_rdev, &resolved);
if (r == -ENOENT) {
/* maybe /dev/char/x:y and /dev/block/x:y are missing in this test environment, because we
* run in a container or so? */
log_notice("Device %s cannot be resolved, skipping test", path);
return;
}
assert_se(r >= 0);
assert_se(path_equal(path, resolved));
assert_se(device_path_make_major_minor(st.st_mode, st.st_rdev, &raw) >= 0);
assert_se(device_path_parse_major_minor(raw, &mode, &devno) >= 0);
assert_se(st.st_rdev == devno);
assert_se((st.st_mode & S_IFMT) == (mode & S_IFMT));
}
TEST(device_path_make_canonical) {
test_device_path_make_canonical_one("/dev/null");
test_device_path_make_canonical_one("/dev/zero");
test_device_path_make_canonical_one("/dev/full");
test_device_path_make_canonical_one("/dev/random");
test_device_path_make_canonical_one("/dev/urandom");
test_device_path_make_canonical_one("/dev/tty");
if (is_device_node("/run/systemd/inaccessible/blk") > 0) {
test_device_path_make_canonical_one("/run/systemd/inaccessible/chr");
test_device_path_make_canonical_one("/run/systemd/inaccessible/blk");
}
}
static void test_devnum_format_str_one(dev_t devnum, const char *s) {
dev_t x;
assert_se(streq(FORMAT_DEVNUM(devnum), s));
assert_se(parse_devnum(s, &x) >= 0);
assert_se(x == devnum);
}
TEST(devnum_format_str) {
test_devnum_format_str_one(makedev(0, 0), "0:0");
test_devnum_format_str_one(makedev(1, 2), "1:2");
test_devnum_format_str_one(makedev(99, 100), "99:100");
test_devnum_format_str_one(makedev(4095, 1048575), "4095:1048575");
}
DEFINE_TEST_MAIN(LOG_INFO);
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