wow

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) }