/* SPDX-License-Identifier: ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) */




#ifndef _LINUX_FUSE_H
#define _LINUX_FUSE_H

#ifdef __KERNEL__
#include <linux/types.h>
#else
#include <stdint.h>
#endif




#define FUSE_KERNEL_VERSION 7


#define FUSE_KERNEL_MINOR_VERSION 38


#define FUSE_ROOT_ID 1



struct fuse_attr {
	uint64_t	ino;
	uint64_t	size;
	uint64_t	blocks;
	uint64_t	atime;
	uint64_t	mtime;
	uint64_t	ctime;
	uint32_t	atimensec;
	uint32_t	mtimensec;
	uint32_t	ctimensec;
	uint32_t	mode;
	uint32_t	nlink;
	uint32_t	uid;
	uint32_t	gid;
	uint32_t	rdev;
	uint32_t	blksize;
	uint32_t	flags;
};

struct fuse_kstatfs {
	uint64_t	blocks;
	uint64_t	bfree;
	uint64_t	bavail;
	uint64_t	files;
	uint64_t	ffree;
	uint32_t	bsize;
	uint32_t	namelen;
	uint32_t	frsize;
	uint32_t	padding;
	uint32_t	spare[6];
};

struct fuse_file_lock {
	uint64_t	start;
	uint64_t	end;
	uint32_t	type;
	uint32_t	pid; 
};


#define FATTR_MODE	(1 << 0)
#define FATTR_UID	(1 << 1)
#define FATTR_GID	(1 << 2)
#define FATTR_SIZE	(1 << 3)
#define FATTR_ATIME	(1 << 4)
#define FATTR_MTIME	(1 << 5)
#define FATTR_FH	(1 << 6)
#define FATTR_ATIME_NOW	(1 << 7)
#define FATTR_MTIME_NOW	(1 << 8)
#define FATTR_LOCKOWNER	(1 << 9)
#define FATTR_CTIME	(1 << 10)
#define FATTR_KILL_SUIDGID	(1 << 11)


#define FOPEN_DIRECT_IO		(1 << 0)
#define FOPEN_KEEP_CACHE	(1 << 1)
#define FOPEN_NONSEEKABLE	(1 << 2)
#define FOPEN_CACHE_DIR		(1 << 3)
#define FOPEN_STREAM		(1 << 4)
#define FOPEN_NOFLUSH		(1 << 5)
#define FOPEN_PARALLEL_DIRECT_WRITES	(1 << 6)


#define FUSE_ASYNC_READ		(1 << 0)
#define FUSE_POSIX_LOCKS	(1 << 1)
#define FUSE_FILE_OPS		(1 << 2)
#define FUSE_ATOMIC_O_TRUNC	(1 << 3)
#define FUSE_EXPORT_SUPPORT	(1 << 4)
#define FUSE_BIG_WRITES		(1 << 5)
#define FUSE_DONT_MASK		(1 << 6)
#define FUSE_SPLICE_WRITE	(1 << 7)
#define FUSE_SPLICE_MOVE	(1 << 8)
#define FUSE_SPLICE_READ	(1 << 9)
#define FUSE_FLOCK_LOCKS	(1 << 10)
#define FUSE_HAS_IOCTL_DIR	(1 << 11)
#define FUSE_AUTO_INVAL_DATA	(1 << 12)
#define FUSE_DO_READDIRPLUS	(1 << 13)
#define FUSE_READDIRPLUS_AUTO	(1 << 14)
#define FUSE_ASYNC_DIO		(1 << 15)
#define FUSE_WRITEBACK_CACHE	(1 << 16)
#define FUSE_NO_OPEN_SUPPORT	(1 << 17)
#define FUSE_PARALLEL_DIROPS    (1 << 18)
#define FUSE_HANDLE_KILLPRIV	(1 << 19)
#define FUSE_POSIX_ACL		(1 << 20)
#define FUSE_ABORT_ERROR	(1 << 21)
#define FUSE_MAX_PAGES		(1 << 22)
#define FUSE_CACHE_SYMLINKS	(1 << 23)
#define FUSE_NO_OPENDIR_SUPPORT (1 << 24)
#define FUSE_EXPLICIT_INVAL_DATA (1 << 25)
#define FUSE_MAP_ALIGNMENT	(1 << 26)
#define FUSE_SUBMOUNTS		(1 << 27)
#define FUSE_HANDLE_KILLPRIV_V2	(1 << 28)
#define FUSE_SETXATTR_EXT	(1 << 29)
#define FUSE_INIT_EXT		(1 << 30)
#define FUSE_INIT_RESERVED	(1 << 31)

#define FUSE_SECURITY_CTX	(1ULL << 32)
#define FUSE_HAS_INODE_DAX	(1ULL << 33)
#define FUSE_HAS_EXPIRE_ONLY	(1ULL << 35)


#define CUSE_UNRESTRICTED_IOCTL	(1 << 0)


#define FUSE_RELEASE_FLUSH	(1 << 0)
#define FUSE_RELEASE_FLOCK_UNLOCK	(1 << 1)


#define FUSE_GETATTR_FH		(1 << 0)


#define FUSE_LK_FLOCK		(1 << 0)


#define FUSE_WRITE_CACHE	(1 << 0)
#define FUSE_WRITE_LOCKOWNER	(1 << 1)
#define FUSE_WRITE_KILL_SUIDGID (1 << 2)


#define FUSE_WRITE_KILL_PRIV	FUSE_WRITE_KILL_SUIDGID


#define FUSE_READ_LOCKOWNER	(1 << 1)


#define FUSE_IOCTL_COMPAT	(1 << 0)
#define FUSE_IOCTL_UNRESTRICTED	(1 << 1)
#define FUSE_IOCTL_RETRY	(1 << 2)
#define FUSE_IOCTL_32BIT	(1 << 3)
#define FUSE_IOCTL_DIR		(1 << 4)
#define FUSE_IOCTL_COMPAT_X32	(1 << 5)

#define FUSE_IOCTL_MAX_IOV	256


#define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)


#define FUSE_FSYNC_FDATASYNC	(1 << 0)


#define FUSE_ATTR_SUBMOUNT      (1 << 0)
#define FUSE_ATTR_DAX		(1 << 1)


#define FUSE_OPEN_KILL_SUIDGID	(1 << 0)


#define FUSE_SETXATTR_ACL_KILL_SGID	(1 << 0)


#define FUSE_EXPIRE_ONLY		(1 << 0)


enum fuse_ext_type {
	
	FUSE_MAX_NR_SECCTX	= 31,
};

enum fuse_opcode {
	FUSE_LOOKUP		= 1,
	FUSE_FORGET		= 2,  
	FUSE_GETATTR		= 3,
	FUSE_SETATTR		= 4,
	FUSE_READLINK		= 5,
	FUSE_SYMLINK		= 6,
	FUSE_MKNOD		= 8,
	FUSE_MKDIR		= 9,
	FUSE_UNLINK		= 10,
	FUSE_RMDIR		= 11,
	FUSE_RENAME		= 12,
	FUSE_LINK		= 13,
	FUSE_OPEN		= 14,
	FUSE_READ		= 15,
	FUSE_WRITE		= 16,
	FUSE_STATFS		= 17,
	FUSE_RELEASE		= 18,
	FUSE_FSYNC		= 20,
	FUSE_SETXATTR		= 21,
	FUSE_GETXATTR		= 22,
	FUSE_LISTXATTR		= 23,
	FUSE_REMOVEXATTR	= 24,
	FUSE_FLUSH		= 25,
	FUSE_INIT		= 26,
	FUSE_OPENDIR		= 27,
	FUSE_READDIR		= 28,
	FUSE_RELEASEDIR		= 29,
	FUSE_FSYNCDIR		= 30,
	FUSE_GETLK		= 31,
	FUSE_SETLK		= 32,
	FUSE_SETLKW		= 33,
	FUSE_ACCESS		= 34,
	FUSE_CREATE		= 35,
	FUSE_INTERRUPT		= 36,
	FUSE_BMAP		= 37,
	FUSE_DESTROY		= 38,
	FUSE_IOCTL		= 39,
	FUSE_POLL		= 40,
	FUSE_NOTIFY_REPLY	= 41,
	FUSE_BATCH_FORGET	= 42,
	FUSE_FALLOCATE		= 43,
	FUSE_READDIRPLUS	= 44,
	FUSE_RENAME2		= 45,
	FUSE_LSEEK		= 46,
	FUSE_COPY_FILE_RANGE	= 47,
	FUSE_SETUPMAPPING	= 48,
	FUSE_REMOVEMAPPING	= 49,
	FUSE_SYNCFS		= 50,
	FUSE_TMPFILE		= 51,

	
	CUSE_INIT		= 4096,

	
	CUSE_INIT_BSWAP_RESERVED	= 1048576,	
	FUSE_INIT_BSWAP_RESERVED	= 436207616,	
};

enum fuse_notify_code {
	FUSE_NOTIFY_POLL   = 1,
	FUSE_NOTIFY_INVAL_INODE = 2,
	FUSE_NOTIFY_INVAL_ENTRY = 3,
	FUSE_NOTIFY_STORE = 4,
	FUSE_NOTIFY_RETRIEVE = 5,
	FUSE_NOTIFY_DELETE = 6,
	FUSE_NOTIFY_CODE_MAX,
};


#define FUSE_MIN_READ_BUFFER 8192

#define FUSE_COMPAT_ENTRY_OUT_SIZE 120

struct fuse_entry_out {
	uint64_t	nodeid;		
	uint64_t	generation;	
	uint64_t	entry_valid;	
	uint64_t	attr_valid;	
	uint32_t	entry_valid_nsec;
	uint32_t	attr_valid_nsec;
	struct fuse_attr attr;
};

struct fuse_forget_in {
	uint64_t	nlookup;
};

struct fuse_forget_one {
	uint64_t	nodeid;
	uint64_t	nlookup;
};

struct fuse_batch_forget_in {
	uint32_t	count;
	uint32_t	dummy;
};

struct fuse_getattr_in {
	uint32_t	getattr_flags;
	uint32_t	dummy;
	uint64_t	fh;
};

#define FUSE_COMPAT_ATTR_OUT_SIZE 96

struct fuse_attr_out {
	uint64_t	attr_valid;	
	uint32_t	attr_valid_nsec;
	uint32_t	dummy;
	struct fuse_attr attr;
};

#define FUSE_COMPAT_MKNOD_IN_SIZE 8

struct fuse_mknod_in {
	uint32_t	mode;
	uint32_t	rdev;
	uint32_t	umask;
	uint32_t	padding;
};

struct fuse_mkdir_in {
	uint32_t	mode;
	uint32_t	umask;
};

struct fuse_rename_in {
	uint64_t	newdir;
};

struct fuse_rename2_in {
	uint64_t	newdir;
	uint32_t	flags;
	uint32_t	padding;
};

struct fuse_link_in {
	uint64_t	oldnodeid;
};

struct fuse_setattr_in {
	uint32_t	valid;
	uint32_t	padding;
	uint64_t	fh;
	uint64_t	size;
	uint64_t	lock_owner;
	uint64_t	atime;
	uint64_t	mtime;
	uint64_t	ctime;
	uint32_t	atimensec;
	uint32_t	mtimensec;
	uint32_t	ctimensec;
	uint32_t	mode;
	uint32_t	unused4;
	uint32_t	uid;
	uint32_t	gid;
	uint32_t	unused5;
};

struct fuse_open_in {
	uint32_t	flags;
	uint32_t	open_flags;	
};

struct fuse_create_in {
	uint32_t	flags;
	uint32_t	mode;
	uint32_t	umask;
	uint32_t	open_flags;	
};

struct fuse_open_out {
	uint64_t	fh;
	uint32_t	open_flags;
	uint32_t	padding;
};

struct fuse_release_in {
	uint64_t	fh;
	uint32_t	flags;
	uint32_t	release_flags;
	uint64_t	lock_owner;
};

struct fuse_flush_in {
	uint64_t	fh;
	uint32_t	unused;
	uint32_t	padding;
	uint64_t	lock_owner;
};

struct fuse_read_in {
	uint64_t	fh;
	uint64_t	offset;
	uint32_t	size;
	uint32_t	read_flags;
	uint64_t	lock_owner;
	uint32_t	flags;
	uint32_t	padding;
};

#define FUSE_COMPAT_WRITE_IN_SIZE 24

struct fuse_write_in {
	uint64_t	fh;
	uint64_t	offset;
	uint32_t	size;
	uint32_t	write_flags;
	uint64_t	lock_owner;
	uint32_t	flags;
	uint32_t	padding;
};

struct fuse_write_out {
	uint32_t	size;
	uint32_t	padding;
};

#define FUSE_COMPAT_STATFS_SIZE 48

struct fuse_statfs_out {
	struct fuse_kstatfs st;
};

struct fuse_fsync_in {
	uint64_t	fh;
	uint32_t	fsync_flags;
	uint32_t	padding;
};

#define FUSE_COMPAT_SETXATTR_IN_SIZE 8

struct fuse_setxattr_in {
	uint32_t	size;
	uint32_t	flags;
	uint32_t	setxattr_flags;
	uint32_t	padding;
};

struct fuse_getxattr_in {
	uint32_t	size;
	uint32_t	padding;
};

struct fuse_getxattr_out {
	uint32_t	size;
	uint32_t	padding;
};

struct fuse_lk_in {
	uint64_t	fh;
	uint64_t	owner;
	struct fuse_file_lock lk;
	uint32_t	lk_flags;
	uint32_t	padding;
};

struct fuse_lk_out {
	struct fuse_file_lock lk;
};

struct fuse_access_in {
	uint32_t	mask;
	uint32_t	padding;
};

struct fuse_init_in {
	uint32_t	major;
	uint32_t	minor;
	uint32_t	max_readahead;
	uint32_t	flags;
	uint32_t	flags2;
	uint32_t	unused[11];
};

#define FUSE_COMPAT_INIT_OUT_SIZE 8
#define FUSE_COMPAT_22_INIT_OUT_SIZE 24

struct fuse_init_out {
	uint32_t	major;
	uint32_t	minor;
	uint32_t	max_readahead;
	uint32_t	flags;
	uint16_t	max_background;
	uint16_t	congestion_threshold;
	uint32_t	max_write;
	uint32_t	time_gran;
	uint16_t	max_pages;
	uint16_t	map_alignment;
	uint32_t	flags2;
	uint32_t	unused[7];
};

#define CUSE_INIT_INFO_MAX 4096

struct cuse_init_in {
	uint32_t	major;
	uint32_t	minor;
	uint32_t	unused;
	uint32_t	flags;
};

struct cuse_init_out {
	uint32_t	major;
	uint32_t	minor;
	uint32_t	unused;
	uint32_t	flags;
	uint32_t	max_read;
	uint32_t	max_write;
	uint32_t	dev_major;		
	uint32_t	dev_minor;		
	uint32_t	spare[10];
};

struct fuse_interrupt_in {
	uint64_t	unique;
};

struct fuse_bmap_in {
	uint64_t	block;
	uint32_t	blocksize;
	uint32_t	padding;
};

struct fuse_bmap_out {
	uint64_t	block;
};

struct fuse_ioctl_in {
	uint64_t	fh;
	uint32_t	flags;
	uint32_t	cmd;
	uint64_t	arg;
	uint32_t	in_size;
	uint32_t	out_size;
};

struct fuse_ioctl_iovec {
	uint64_t	base;
	uint64_t	len;
};

struct fuse_ioctl_out {
	int32_t		result;
	uint32_t	flags;
	uint32_t	in_iovs;
	uint32_t	out_iovs;
};

struct fuse_poll_in {
	uint64_t	fh;
	uint64_t	kh;
	uint32_t	flags;
	uint32_t	events;
};

struct fuse_poll_out {
	uint32_t	revents;
	uint32_t	padding;
};

struct fuse_notify_poll_wakeup_out {
	uint64_t	kh;
};

struct fuse_fallocate_in {
	uint64_t	fh;
	uint64_t	offset;
	uint64_t	length;
	uint32_t	mode;
	uint32_t	padding;
};

struct fuse_in_header {
	uint32_t	len;
	uint32_t	opcode;
	uint64_t	unique;
	uint64_t	nodeid;
	uint32_t	uid;
	uint32_t	gid;
	uint32_t	pid;
	uint16_t	total_extlen; 
	uint16_t	padding;
};

struct fuse_out_header {
	uint32_t	len;
	int32_t		error;
	uint64_t	unique;
};

struct fuse_dirent {
	uint64_t	ino;
	uint64_t	off;
	uint32_t	namelen;
	uint32_t	type;
	char name[];
};


#define FUSE_REC_ALIGN(x) \
	(((x) + sizeof(uint64_t) - 1) & ~(sizeof(uint64_t) - 1))

#define FUSE_NAME_OFFSET offsetof(struct fuse_dirent, name)
#define FUSE_DIRENT_ALIGN(x) FUSE_REC_ALIGN(x)
#define FUSE_DIRENT_SIZE(d) \
	FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET + (d)->namelen)

struct fuse_direntplus {
	struct fuse_entry_out entry_out;
	struct fuse_dirent dirent;
};

#define FUSE_NAME_OFFSET_DIRENTPLUS \
	offsetof(struct fuse_direntplus, dirent.name)
#define FUSE_DIRENTPLUS_SIZE(d) \
	FUSE_DIRENT_ALIGN(FUSE_NAME_OFFSET_DIRENTPLUS + (d)->dirent.namelen)

struct fuse_notify_inval_inode_out {
	uint64_t	ino;
	int64_t		off;
	int64_t		len;
};

struct fuse_notify_inval_entry_out {
	uint64_t	parent;
	uint32_t	namelen;
	uint32_t	flags;
};

struct fuse_notify_delete_out {
	uint64_t	parent;
	uint64_t	child;
	uint32_t	namelen;
	uint32_t	padding;
};

struct fuse_notify_store_out {
	uint64_t	nodeid;
	uint64_t	offset;
	uint32_t	size;
	uint32_t	padding;
};

struct fuse_notify_retrieve_out {
	uint64_t	notify_unique;
	uint64_t	nodeid;
	uint64_t	offset;
	uint32_t	size;
	uint32_t	padding;
};


struct fuse_notify_retrieve_in {
	uint64_t	dummy1;
	uint64_t	offset;
	uint32_t	size;
	uint32_t	dummy2;
	uint64_t	dummy3;
	uint64_t	dummy4;
};


#define FUSE_DEV_IOC_MAGIC		229
#define FUSE_DEV_IOC_CLONE		_IOR(FUSE_DEV_IOC_MAGIC, 0, uint32_t)

struct fuse_lseek_in {
	uint64_t	fh;
	uint64_t	offset;
	uint32_t	whence;
	uint32_t	padding;
};

struct fuse_lseek_out {
	uint64_t	offset;
};

struct fuse_copy_file_range_in {
	uint64_t	fh_in;
	uint64_t	off_in;
	uint64_t	nodeid_out;
	uint64_t	fh_out;
	uint64_t	off_out;
	uint64_t	len;
	uint64_t	flags;
};

#define FUSE_SETUPMAPPING_FLAG_WRITE (1ull << 0)
#define FUSE_SETUPMAPPING_FLAG_READ (1ull << 1)
struct fuse_setupmapping_in {
	
	uint64_t	fh;
	
	uint64_t	foffset;
	
	uint64_t	len;
	
	uint64_t	flags;
	
	uint64_t	moffset;
};

struct fuse_removemapping_in {
	
	uint32_t        count;
};

struct fuse_removemapping_one {
	
	uint64_t        moffset;
	
	uint64_t	len;
};

#define FUSE_REMOVEMAPPING_MAX_ENTRY   \
		(PAGE_SIZE / sizeof(struct fuse_removemapping_one))

struct fuse_syncfs_in {
	uint64_t	padding;
};


struct fuse_secctx {
	uint32_t	size;
	uint32_t	padding;
};


struct fuse_secctx_header {
	uint32_t	size;
	uint32_t	nr_secctx;
};


struct fuse_ext_header {
	uint32_t	size;
	uint32_t	type;
};

#endif 
