vhd

Documentation

Index

• Constants
• type Converter
  • func NewFixedVHDConverter() Converter
• type FixedVHDHeader
  • func NewFixedVHDHeader(size uint64) (*FixedVHDHeader, error)
  • func (hdr *FixedVHDHeader) Bytes() ([]byte, error)

Constants

const CookieMagic = 0x636f6e6563746978 // "conectix" as 64 bit big endian number

Constants for the VHD header

const CreatorApplicationMagic = 0x77696e20 // "win " as 4 bit big endian number. It's win<SPACE>

const CreatorHostOSMagic = 0x5769326b // "wi2k" as 4 bit big endian number

const CreatorVersionMagic = 0x000a0000

const DiskTypeDifferencing = 4

const DiskTypeDynamic = 3

const DiskTypeFixed = 2

const DiskTypeNone = 0

DiskType Constants DiskType = 1, 5, 6 are deprecated

const FeatureMask = 0x2

const FileFormatVersionMagic = 0x00010000

const FixedDataOffset = 0xFFFFFFFFFFFFFFFF

const FixedVHDHeaderSize int64 = 512

const MaxCHS = cMax * hMax * sMax * sectorBytes

const SaveStateNo = 0

const SaveStateYes = 1

Saved state constants

const TimeStart = "00 Jan 01 00:00 UTC"

Variables for time stamp

Types

type Converter

type Converter interface {
	ConvertToVHD(f *os.File) error
	ConvertFromVHD(f *os.File) error
}

Converter converts a disk image to and from a VHD format.

func NewFixedVHDConverter

func NewFixedVHDConverter() Converter

type FixedVHDHeader

type FixedVHDHeader struct {
	Cookie             uint64
	Features           uint32
	FileFormatVersion  uint32
	DataOffset         uint64
	TimeStamp          uint32
	CreatorApplication uint32
	CreatorVersion     uint32
	CreatorHostOS      uint32
	OriginalSize       uint64
	CurrentSize        uint64
	DiskGeometry       uint32
	DiskType           uint32
	Checksum           uint32
	UniqueID           [16]uint8
	SavedState         uint8
	Reserved           [427]uint8
}

FixedVHDHeader is the footer for a fixed VHD

func NewFixedVHDHeader

func NewFixedVHDHeader(size uint64) (*FixedVHDHeader, error)

func (*FixedVHDHeader) Bytes

func (hdr *FixedVHDHeader) Bytes() ([]byte, error)