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| author | Luke Shumaker <lukeshu@lukeshu.com> | 2022-06-04 22:53:09 -0600 |
|---|---|---|
| committer | Luke Shumaker <lukeshu@lukeshu.com> | 2022-06-04 22:53:09 -0600 |
| commit | 67aab484a523dfcbf32f4fc68ace2474ade96a5f (patch) | |
| tree | 64093a2d351b1b3c4a4b1612e39ee9de8a2bc7c4 /pkg | |
| parent | 02fccc8c29d6f638efee0302868242d805bd7711 (diff) | |
more
Diffstat (limited to 'pkg')
| -rw-r--r-- | pkg/btrfs/btrfsitem/item_blockgroup.go | 38 | ||||
| -rw-r--r-- | pkg/btrfs/btrfsitem/item_chunk.go | 18 |
2 files changed, 47 insertions, 9 deletions
diff --git a/pkg/btrfs/btrfsitem/item_blockgroup.go b/pkg/btrfs/btrfsitem/item_blockgroup.go new file mode 100644 index 0000000..162adb1 --- /dev/null +++ b/pkg/btrfs/btrfsitem/item_blockgroup.go @@ -0,0 +1,38 @@ +package btrfsitem + +import ( + "lukeshu.com/btrfs-tools/pkg/util" +) + +type BlockGroupFlags uint64 + +const ( + BLOCK_GROUP_DATA = BlockGroupFlags(1 << iota) + BLOCK_GROUP_SYSTEM + BLOCK_GROUP_METADATA + BLOCK_GROUP_RAID0 + BLOCK_GROUP_RAID1 + BLOCK_GROUP_DUP + BLOCK_GROUP_RAID10 + BLOCK_GROUP_RAID5 + BLOCK_GROUP_RAID6 + BLOCK_GROUP_RAID1C3 + BLOCK_GROUP_RAID1C4 +) + +var blockGroupFlagNames = []string{ + "DATA", + "SYSTEM", + "METADATA", + "RAID0", + "RAID1", + "DUP", + "RAID10", + "RAID5", + "RAID6", + "RAID1C3", + "RAID1C4", +} + +func (f BlockGroupFlags) Has(req BlockGroupFlags) bool { return f&req == req } +func (f BlockGroupFlags) String() string { return util.BitfieldString(f, blockGroupFlagNames) } diff --git a/pkg/btrfs/btrfsitem/item_chunk.go b/pkg/btrfs/btrfsitem/item_chunk.go index 7bb65b1..826ecc6 100644 --- a/pkg/btrfs/btrfsitem/item_chunk.go +++ b/pkg/btrfs/btrfsitem/item_chunk.go @@ -9,15 +9,15 @@ import ( type Chunk struct { // CHUNK_ITEM=228 // Maps logical address to physical. - Size uint64 `bin:"off=0x0, siz=0x8"` // size of chunk (bytes) - Owner internal.ObjID `bin:"off=0x8, siz=0x8"` // root referencing this chunk (2) - StripeLen uint64 `bin:"off=0x10, siz=0x8"` // stripe length - Type uint64 `bin:"off=0x18, siz=0x8"` // type (same as flags for block group?) - IOOptimalAlign uint32 `bin:"off=0x20, siz=0x4"` // optimal io alignment - IOOptimalWidth uint32 `bin:"off=0x24, siz=0x4"` // optimal io width - IoMinSize uint32 `bin:"off=0x28, siz=0x4"` // minimal io size (sector size) - NumStripes uint16 `bin:"off=0x2c, siz=0x2"` // number of stripes - SubStripes uint16 `bin:"off=0x2e, siz=0x2"` // sub stripes + Size uint64 `bin:"off=0x0, siz=0x8"` // size of chunk (bytes) + Owner internal.ObjID `bin:"off=0x8, siz=0x8"` // root referencing this chunk (2) + StripeLen uint64 `bin:"off=0x10, siz=0x8"` // stripe length + Type BlockGroupFlags `bin:"off=0x18, siz=0x8"` // type (same as flags for block group?) + IOOptimalAlign uint32 `bin:"off=0x20, siz=0x4"` // optimal io alignment + IOOptimalWidth uint32 `bin:"off=0x24, siz=0x4"` // optimal io width + IOMinSize uint32 `bin:"off=0x28, siz=0x4"` // minimal io size (sector size) + NumStripes uint16 `bin:"off=0x2c, siz=0x2"` // number of stripes + SubStripes uint16 `bin:"off=0x2e, siz=0x2"` // sub stripes binstruct.End `bin:"off=0x30"` Stripes []ChunkStripe `bin:"-"` } |