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package btrfsitem
import (
"git.lukeshu.com/btrfs-progs-ng/lib/binstruct"
"git.lukeshu.com/btrfs-progs-ng/lib/btrfs/internal"
"git.lukeshu.com/btrfs-progs-ng/lib/linux"
"git.lukeshu.com/btrfs-progs-ng/lib/util"
)
type Inode struct { // INODE_ITEM=1
Generation internal.Generation `bin:"off=0x00, siz=0x08"`
TransID int64 `bin:"off=0x08, siz=0x08"`
Size int64 `bin:"off=0x10, siz=0x08"` // stat
NumBytes int64 `bin:"off=0x18, siz=0x08"`
BlockGroup int64 `bin:"off=0x20, siz=0x08"`
NLink int32 `bin:"off=0x28, siz=0x04"` // stat
UID int32 `bin:"off=0x2C, siz=0x04"` // stat
GID int32 `bin:"off=0x30, siz=0x04"` // stat
Mode linux.StatMode `bin:"off=0x34, siz=0x04"` // stat
RDev int64 `bin:"off=0x38, siz=0x08"` // stat
Flags InodeFlags `bin:"off=0x40, siz=0x08"` // statx.stx_attributes, sorta
Sequence int64 `bin:"off=0x48, siz=0x08"` // NFS
Reserved [4]int64 `bin:"off=0x50, siz=0x20"`
ATime internal.Time `bin:"off=0x70, siz=0x0c"` // stat
CTime internal.Time `bin:"off=0x7c, siz=0x0c"` // stat
MTime internal.Time `bin:"off=0x88, siz=0x0c"` // stat
OTime internal.Time `bin:"off=0x94, siz=0x0c"` // statx.stx_btime (why is this called "otime" instead of "btime"?)
binstruct.End `bin:"off=0xa0"`
}
type InodeFlags uint64
const (
INODE_NODATASUM = InodeFlags(1 << iota)
INODE_NODATACOW
INODE_READONLY
INODE_NOCOMPRESS
INODE_PREALLOC
INODE_SYNC
INODE_IMMUTABLE
INODE_APPEND
INODE_NODUMP
INODE_NOATIME
INODE_DIRSYNC
INODE_COMPRESS
)
var inodeFlagNames = []string{
"NODATASUM",
"NODATACOW",
"READONLY",
"NOCOMPRESS",
"PREALLOC",
"SYNC",
"IMMUTABLE",
"APPEND",
"NODUMP",
"NOATIME",
"DIRSYNC",
"COMPRESS",
}
func (f InodeFlags) Has(req InodeFlags) bool { return f&req == req }
func (f InodeFlags) String() string { return util.BitfieldString(f, inodeFlagNames, util.HexLower) }
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