1 files changed, 93 insertions, 2 deletions

diff --git a/src/test/test-stat-util.c b/src/test/test-stat-util.c
index 43f56a6c20..d16fdd90d1 100644
--- a/src/test/test-stat-util.c
+++ b/src/test/test-stat-util.c
@@ -6,11 +6,12 @@
 
 #include "alloc-util.h"
 #include "fd-util.h"
-#include "fileio.h"
 #include "macro.h"
 #include "missing.h"
-#include "mount-util.h"
+#include "mountpoint-util.h"
+#include "path-util.h"
 #include "stat-util.h"
+#include "tmpfile-util.h"
 
 static void test_files_same(void) {
         _cleanup_close_ int fd = -1;
@@ -67,11 +68,101 @@ static void test_path_is_temporary_fs(void) {
         assert_se(path_is_temporary_fs("/i-dont-exist") == -ENOENT);
 }
 
+static void test_fd_is_network_ns(void) {
+        _cleanup_close_ int fd = -1;
+        assert_se(fd_is_network_ns(STDIN_FILENO) == 0);
+        assert_se(fd_is_network_ns(STDERR_FILENO) == 0);
+        assert_se(fd_is_network_ns(STDOUT_FILENO) == 0);
+
+        assert_se((fd = open("/proc/self/ns/mnt", O_CLOEXEC|O_RDONLY)) >= 0);
+        assert_se(IN_SET(fd_is_network_ns(fd), 0, -EUCLEAN));
+        fd = safe_close(fd);
+
+        assert_se((fd = open("/proc/self/ns/net", O_CLOEXEC|O_RDONLY)) >= 0);
+        assert_se(IN_SET(fd_is_network_ns(fd), 1, -EUCLEAN));
+}
+
+static void test_device_major_minor_valid(void) {
+        /* on glibc dev_t is 64bit, even though in the kernel it is only 32bit */
+        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;
+
+        assert_se(stat(path, &st) >= 0);
+        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? */
+                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));
+}
+
+static void test_device_path_make_canonical(void) {
+
+        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/chr") > 0) {
+                test_device_path_make_canonical_one("/run/systemd/inaccessible/chr");
+                test_device_path_make_canonical_one("/run/systemd/inaccessible/blk");
+        }
+}
+
 int main(int argc, char *argv[]) {
         test_files_same();
         test_is_symlink();
         test_path_is_fs_type();
         test_path_is_temporary_fs();
+        test_fd_is_network_ns();
+        test_device_major_minor_valid();
+        test_device_path_make_canonical();
 
         return 0;
 }