LXR linux/include/uapi/linux/nsfs.h

   1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
   2#ifndef __LINUX_NSFS_H
   3#define __LINUX_NSFS_H
   4
   5#include <linux/ioctl.h>
   6
   7#define NSIO    0xb7
   8
   9/* Returns a file descriptor that refers to an owning user namespace */
  10#define NS_GET_USERNS           _IO(NSIO, 0x1)
  11/* Returns a file descriptor that refers to a parent namespace */
  12#define NS_GET_PARENT           _IO(NSIO, 0x2)
  13/* Returns the type of namespace (CLONE_NEW* value) referred to by
  14   file descriptor */
  15#define NS_GET_NSTYPE           _IO(NSIO, 0x3)
  16/* Get owner UID (in the caller's user namespace) for a user namespace */
  17#define NS_GET_OWNER_UID        _IO(NSIO, 0x4)
  18
  19#endif /* __LINUX_NSFS_H */
  20