From 27401b6ea459921a6152ab1744da1618358465f4 Mon Sep 17 00:00:00 2001 From: Luke Shumaker Date: Sun, 10 Jul 2022 13:18:30 -0600 Subject: Rename the module, mv pkg lib --- lib/btrfs/btrfsitem/item_root.go | 51 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+) create mode 100644 lib/btrfs/btrfsitem/item_root.go (limited to 'lib/btrfs/btrfsitem/item_root.go') diff --git a/lib/btrfs/btrfsitem/item_root.go b/lib/btrfs/btrfsitem/item_root.go new file mode 100644 index 0000000..ff9311f --- /dev/null +++ b/lib/btrfs/btrfsitem/item_root.go @@ -0,0 +1,51 @@ +package btrfsitem + +import ( + "git.lukeshu.com/btrfs-progs-ng/lib/binstruct" + "git.lukeshu.com/btrfs-progs-ng/lib/btrfs/btrfsvol" + "git.lukeshu.com/btrfs-progs-ng/lib/btrfs/internal" + "git.lukeshu.com/btrfs-progs-ng/lib/util" +) + +type Root struct { // ROOT_ITEM=132 + Inode Inode `bin:"off=0x000, siz=0xa0"` + Generation internal.Generation `bin:"off=0x0a0, siz=0x08"` + RootDirID internal.ObjID `bin:"off=0x0a8, siz=0x08"` + ByteNr btrfsvol.LogicalAddr `bin:"off=0x0b0, siz=0x08"` + ByteLimit int64 `bin:"off=0x0b8, siz=0x08"` + BytesUsed int64 `bin:"off=0x0c0, siz=0x08"` + LastSnapshot int64 `bin:"off=0x0c8, siz=0x08"` + Flags RootFlags `bin:"off=0x0d0, siz=0x08"` + Refs int32 `bin:"off=0x0d8, siz=0x04"` + DropProgress internal.Key `bin:"off=0x0dc, siz=0x11"` + DropLevel uint8 `bin:"off=0x0ed, siz=0x01"` + Level uint8 `bin:"off=0x0ee, siz=0x01"` + GenerationV2 internal.Generation `bin:"off=0x0ef, siz=0x08"` + UUID util.UUID `bin:"off=0x0f7, siz=0x10"` + ParentUUID util.UUID `bin:"off=0x107, siz=0x10"` + ReceivedUUID util.UUID `bin:"off=0x117, siz=0x10"` + CTransID int64 `bin:"off=0x127, siz=0x08"` + OTransID int64 `bin:"off=0x12f, siz=0x08"` + STransID int64 `bin:"off=0x137, siz=0x08"` + RTransID int64 `bin:"off=0x13f, siz=0x08"` + CTime internal.Time `bin:"off=0x147, siz=0x0c"` + OTime internal.Time `bin:"off=0x153, siz=0x0c"` + STime internal.Time `bin:"off=0x15f, siz=0x0c"` + RTime internal.Time `bin:"off=0x16b, siz=0x0c"` + GlobalTreeID internal.ObjID `bin:"off=0x177, siz=0x08"` + Reserved [7]int64 `bin:"off=0x17f, siz=0x38"` + binstruct.End `bin:"off=0x1b7"` +} + +type RootFlags uint64 + +const ( + ROOT_SUBVOL_RDONLY = RootFlags(1 << iota) +) + +var rootFlagNames = []string{ + "SUBVOL_RDONLY", +} + +func (f RootFlags) Has(req RootFlags) bool { return f&req == req } +func (f RootFlags) String() string { return util.BitfieldString(f, rootFlagNames, util.HexLower) } -- cgit v1.2.3-2-g168b