+static int udev_device_tag_index(struct udev_device *udev_device, bool add)
+{
+ struct udev *udev = udev_device_get_udev(udev_device);
+ struct udev_list_entry *list_entry;
+
+ udev_list_entry_foreach(list_entry, udev_device_get_tags_list_entry(udev_device)) {
+ char filename[UTIL_PATH_SIZE];
+
+ util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/tags/",
+ udev_list_entry_get_name(list_entry), "/",
+ udev_device_get_subsystem(udev_device), ":", udev_device_get_sysname(udev_device), NULL);
+
+ if (add) {
+ util_create_path(udev, filename);
+ symlink(udev_device_get_devpath(udev_device), filename);
+ if (udev_device_get_sysname_old(udev_device) != NULL) {
+ char filename_old[UTIL_PATH_SIZE];
+
+ util_strscpyl(filename, sizeof(filename), udev_get_dev_path(udev), "/.udev/tags/",
+ udev_list_entry_get_name(list_entry),
+ udev_device_get_subsystem(udev_device), ":", udev_device_get_sysname_old(udev_device), NULL);
+ unlink(filename_old);
+ }
+ } else {
+ unlink(filename);
+ util_delete_path(udev, filename);
+ }
+ }
+ return 0;
+}
+