--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _LINUX_UN_H
+#define _LINUX_UN_H
+
+#include <linux/socket.h>
+
+#define UNIX_PATH_MAX 108
+
+struct sockaddr_un {
+ __kernel_sa_family_t sun_family; /* AF_UNIX */
+ char sun_path[UNIX_PATH_MAX]; /* pathname */
+};
+
+#define SIOCUNIXFILE (SIOCPROTOPRIVATE + 0) /* open a socket file with O_PATH */
+
+#endif /* _LINUX_UN_H */