/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */

#ifndef _UAPI_LINUX_PIDFD_H
#define _UAPI_LINUX_PIDFD_H

#include <linux/types.h>
#include <linux/fcntl.h>
#include <linux/ioctl.h>


#define PIDFD_NONBLOCK	O_NONBLOCK
#define PIDFD_THREAD	O_EXCL
#ifdef __KERNEL__
#include <linux/sched.h>
#define PIDFD_STALE CLONE_PIDFD
#endif


#define PIDFD_SIGNAL_THREAD		(1UL << 0)
#define PIDFD_SIGNAL_THREAD_GROUP	(1UL << 1)
#define PIDFD_SIGNAL_PROCESS_GROUP	(1UL << 2)


#define PIDFD_INFO_PID			(1UL << 0) 
#define PIDFD_INFO_CREDS		(1UL << 1) 
#define PIDFD_INFO_CGROUPID		(1UL << 2) 
#define PIDFD_INFO_EXIT			(1UL << 3) 
#define PIDFD_INFO_COREDUMP		(1UL << 4) 
#define PIDFD_INFO_SUPPORTED_MASK	(1UL << 5) 
#define PIDFD_INFO_COREDUMP_SIGNAL	(1UL << 6) 

#define PIDFD_INFO_SIZE_VER0		64 
#define PIDFD_INFO_SIZE_VER1		72 
#define PIDFD_INFO_SIZE_VER2		80 


#define PIDFD_COREDUMPED	(1U << 0) 
#define PIDFD_COREDUMP_SKIP	(1U << 1) 
#define PIDFD_COREDUMP_USER	(1U << 2) 
#define PIDFD_COREDUMP_ROOT	(1U << 3) 


#define PIDFD_SELF		PIDFD_SELF_THREAD
#define PIDFD_SELF_PROCESS	PIDFD_SELF_THREAD_GROUP

struct pidfd_info {
	
	__u64 mask;
	
	__u64 cgroupid;
	__u32 pid;
	__u32 tgid;
	__u32 ppid;
	__u32 ruid;
	__u32 rgid;
	__u32 euid;
	__u32 egid;
	__u32 suid;
	__u32 sgid;
	__u32 fsuid;
	__u32 fsgid;
	__s32 exit_code;
	struct  {
		__u32 coredump_mask;
		__u32 coredump_signal;
	};
	__u64 supported_mask;	
};

#define PIDFS_IOCTL_MAGIC 0xFF

#define PIDFD_GET_CGROUP_NAMESPACE            _IO(PIDFS_IOCTL_MAGIC, 1)
#define PIDFD_GET_IPC_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 2)
#define PIDFD_GET_MNT_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 3)
#define PIDFD_GET_NET_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 4)
#define PIDFD_GET_PID_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 5)
#define PIDFD_GET_PID_FOR_CHILDREN_NAMESPACE  _IO(PIDFS_IOCTL_MAGIC, 6)
#define PIDFD_GET_TIME_NAMESPACE              _IO(PIDFS_IOCTL_MAGIC, 7)
#define PIDFD_GET_TIME_FOR_CHILDREN_NAMESPACE _IO(PIDFS_IOCTL_MAGIC, 8)
#define PIDFD_GET_USER_NAMESPACE              _IO(PIDFS_IOCTL_MAGIC, 9)
#define PIDFD_GET_UTS_NAMESPACE               _IO(PIDFS_IOCTL_MAGIC, 10)
#define PIDFD_GET_INFO                        _IOWR(PIDFS_IOCTL_MAGIC, 11, struct pidfd_info)

#endif 
