/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ #ifndef __LINUX_NSFS_H #define __LINUX_NSFS_H #include <linux/ioctl.h> #define NSIO 0xb7 /* Returns a file descriptor that refers to an owning user namespace */ #define NS_GET_USERNS _IO(NSIO, 0x1) /* Returns a file descriptor that refers to a parent namespace */ #define NS_GET_PARENT _IO(NSIO, 0x2) /* Returns the type of namespace (CLONE_NEW* value) referred to by file descriptor */ #define NS_GET_NSTYPE _IO(NSIO, 0x3) /* Get owner UID (in the caller's user namespace) for a user namespace */ #define NS_GET_OWNER_UID _IO(NSIO, 0x4) #endif /* __LINUX_NSFS_H */