diff options
Diffstat (limited to 'pkg/btrfs/btrfsitem/item_root.go')
| -rw-r--r-- | pkg/btrfs/btrfsitem/item_root.go | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/pkg/btrfs/btrfsitem/item_root.go b/pkg/btrfs/btrfsitem/item_root.go new file mode 100644 index 0000000..c87a49b --- /dev/null +++ b/pkg/btrfs/btrfsitem/item_root.go @@ -0,0 +1,50 @@ +package btrfsitem + +import ( + "lukeshu.com/btrfs-tools/pkg/binstruct" + "lukeshu.com/btrfs-tools/pkg/btrfs/btrfstyp" + "lukeshu.com/btrfs-tools/pkg/util" +) + +type Root struct { // ROOT_ITEM=132 + Inode Inode `bin:"off=0x0, siz=0xa0"` + Generation int64 `bin:"off=0xa0, siz=0x8"` + RootDirID int64 `bin:"off=0xa8, siz=0x8"` + ByteNr btrfstyp.LogicalAddr `bin:"off=0xb0, siz=0x8"` + ByteLimit int64 `bin:"off=0xb8, siz=0x8"` + BytesUsed int64 `bin:"off=0xc0, siz=0x8"` + LastSnapshot int64 `bin:"off=0xc8, siz=0x8"` + Flags RootFlags `bin:"off=0xd0, siz=0x8"` + Refs int32 `bin:"off=0xd8, siz=0x4"` + DropProgress btrfstyp.Key `bin:"off=0xdc, siz=0x11"` + DropLevel uint8 `bin:"off=0xed, siz=0x1"` + Level uint8 `bin:"off=0xee, siz=0x1"` + GenerationV2 int64 `bin:"off=0xef, siz=0x8"` + UUID btrfstyp.UUID `bin:"off=0xF7, siz=0x10"` + ParentUUID btrfstyp.UUID `bin:"off=0x107, siz=0x10"` + ReceivedUUID btrfstyp.UUID `bin:"off=0x117, siz=0x10"` + CTransID int64 `bin:"off=0x127, siz=0x8"` + OTransID int64 `bin:"off=0x12f, siz=0x8"` + STransID int64 `bin:"off=0x137, siz=0x8"` + RTransID int64 `bin:"off=0x13f, siz=0x8"` + CTime btrfstyp.Time `bin:"off=0x147, siz=0xc"` + OTime btrfstyp.Time `bin:"off=0x153, siz=0xc"` + STime btrfstyp.Time `bin:"off=0x15F, siz=0xc"` + RTime btrfstyp.Time `bin:"off=0x16b, siz=0xc"` + GlobalTreeID btrfstyp.ObjID `bin:"off=0x177, siz=0x8"` + Reserved [7]int64 `bin:"off=0x17f, siz=0x38"` + binstruct.End `bin:"off=0x1b7"` +} + +type RootFlags uint64 + +const ( + BTRFS_ROOT_SUBVOL_RDONLY = RootFlags(1 << iota) +) + +var rootItemFlagNames = []string{ + "SUBVOL_RDONLY", +} + +func (f RootFlags) Has(req RootFlags) bool { return f&req == req } +func (f RootFlags) String() string { return util.BitfieldString(f, rootItemFlagNames) } |