Difference between revisions of "Unit VirtualDisk"
From Ultibo.org
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=== Function declarations === | === Function declarations === | ||
Revision as of 02:42, 30 December 2016
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Description
Ultibo Virtual Disk interface unit
To be documented
Constants
Virtual disk specific constants
VIRTUAL_* VIRTUAL_DEVICE_DESCRIPTION = 'Virtual Disk Device';
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VIRTUAL_CONTROLLER_DESCRIPTION = 'Virtual Disk Controller';
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Virtual flag contants
virtualFlag* virtualFlagNone = $00000000;
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virtualFlagFixed = $00000001;
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virtualFlagDynamic = $00000002;
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virtualFlagBase = $00000004;
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virtualFlagDelta = $00000008;
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virtualFlagDevice = $00000010;
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virtualFlagSplit = $00000020;
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VMware constants
vmware* vmwareFileExtension = '.vmdk';
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vmwareFileMask = '*.vmdk';
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vmwareNoParentCID = $FFFFFFFF;
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not($00000000) |
vmwareSparseMagicNumber = $564d444b;
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'VMDK' |
vmwareEsxSparseMagicNumber = $44574f43;
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'COWD' |
vmwareEsxSparseMaxParentLength = 1024;
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COWDISK_MAX_PARENT_FILELEN |
vmwareEsxSparseMaxNameLength = 60;
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COWDISK_MAX_NAME_LEN |
vmwareEsxSparseMaxDescriptionLength = 512;
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COWDISK_MAX_DESC_LEN |
vmwareSectorSize = 512;
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VMware disk type constants
vmware*DiskType vmwareMaxDiskType = 0;
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vmwareDiskTypeNone = 0;
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VMware descriptor tag constants
vmwareTag* vmwareTagDisk = 'Disk DescriptorFile';
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vmwareTagVersion = 'version';
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vmwareTagCID = 'CID';
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vmwareTagParentCID = 'parentCID';
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vmwareTagCreateType = 'createType';
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vmwareTagExtent = 'Extent Description';
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vmwareTagDatabase = 'The Disk Data Base';
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vmwareTagDDB = 'DDB';
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vmwareTagAdapter = 'ddb.adapterType';
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vmwareTagSectors = 'ddb.geometry.sectors';
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vmwareTagHeads = 'ddb.geometry.heads';
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vmwareTagCylinders = 'ddb.geometry.cylinders';
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vmwareTagParentHint = 'parentFileNameHint';
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VMware create type constants
vmwareCreateType_* vmwareMaxCreateType = 11;
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vmwareCreateType_monolithicSparse = 0;
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vmwareCreateType_vmfsSparse = 1;
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vmwareCreateType_monolithicFlat = 2;
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vmwareCreateType_vmfs = 3;
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vmwareCreateType_twoGbMaxExtentSparse = 4;
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vmwareCreateType_twoGbMaxExtentFlat = 5;
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vmwareCreateType_fullDevice = 6;
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vmwareCreateType_vmfsRaw = 7;
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vmwareCreateType_partitionedDevice = 8;
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vmwareCreateType_vmfsRawDeviceMap = 9;
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vmwareCreateType_vmfsPassthroughRawDeviceMap = 10;
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vmwareCreateType_streamOptimized = 11;
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VMware access type constants
vmwareAccessType_* vmwareMaxAccessType = 2;
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vmwareAccessType_RW = 0;
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vmwareAccessType_RDONLY = 1;
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vmwareAccessType_NOACCESS = 2;
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VMware extent type constants
vmwareExtentType_* vmwareMaxExtentType = 6;
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vmwareExtentType_FLAT = 0;
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vmwareExtentType_SPARSE = 1;
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vmwareExtentType_ZERO = 2;
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vmwareExtentType_VMFS = 3;
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vmwareExtentType_VMFSSPARSE = 4;
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vmwareExtentType_VMFSRDM = 5;
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vmwareExtentType_VMFSRAW = 6;
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VMware disk flag constants
vmwareFlag* vmwareFlagValidTest = $00000001;
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bit 0: valid new line detection test |
vmwareFlagRedundantGrain = $00000002;
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bit 1: redundant grain table will be used |
vmwareFlagGrainCompressed = $00010000;
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bit 16: the grains are compressed. The type of compression is described by compressAlgorithm |
vmwareFlagLBAMarkers = $00020000;
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bit 17: there are markers in the virtual disk to identify every block of metadata or data and the markers for the virtual machine data contain a LBA |
VMware compression type constants
vmwareCompression* vmwareCompressionNone = 0;
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vmwareCompressionDeflate = 1;
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The deflate algorithm is described in RFC 1951 |
VPC constants
vpc* vpcFileExtension = '.vhd';
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vpcUndoExtension = '.vud';
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vpcFileMask = '*.vhd';
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vpcUndoMask = '*.vud';
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vpcSplitMask = '*.v??';
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.v01, v02 etc up to 64 |
vpcFooterCookie = 'conectix';
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vpcDynamicCookie = 'cxsparse';
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vpcMaxDiskExtents = 64;
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Maximum number of 4GB split files in a disk image |
vpcExtentMaxSize = 4294967296;
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Maximum size of s split file (4GB) |
vpcUnixTimeOffset = 946684800;
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Offset from 1/1/1970 to 1/1/2000 |
vpcFooterVersion = $00010000;
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vpcDynamicVersion = $00010000;
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vpcSectorSize = 512;
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vpcUnallocatedBlock = $FFFFFFFF;
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vpcFixedDiskTableOffset = $FFFFFFFFFFFFFFFF;
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vpcDynamicDiskDataOffset = $FFFFFFFFFFFFFFFF;
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vpcMaxBlockGroup = $FF;
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vpcBlockGroupMask = $FF;
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vpcBlockGroupOffset = $100;
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VPC disk type constants
vpcDiskType* vpcMaxDiskType = 6;
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vpcDiskTypeNone = 0;
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vpcDiskTypeReserved1 = 1;
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vpcDiskTypeFixed = 2;
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vpcDiskTypeDynamic = 3;
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vpcDiskTypeDifferencing = 4;
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vpcDiskTypeReserved2 = 5;
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vpcDiskTypeReserved3 = 6;
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VPC feature constants
vpcFeature* vpcFeatureNone = $00000000;
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vpcFeatureTemporary = $00000001;
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vpcFeatureReserved = $00000002;
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This bit must always be set to 1 |
VPC creator host OS constants
vpcCreator* vpcCreatorWindows = $5769326B;
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Wi2k |
vpcCreatorMacintosh = $4D616320;
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Mac |
VPC platform code constants
vpcPlatform* vpcPlatformNone = $00000000;
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vpcPlatformWi2r = $57693272;
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Wi2r deprecated |
vpcPlatformWi2k = $5769326B;
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Wi2k deprecated |
vpcPlatformW2ru = $57327275;
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W2ru Unicode pathname (UTF-16) on Windows relative to the differencing disk pathname |
vpcPlatformW2ku = $57326B75;
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W2ku Absolute Unicode (UTF-16) pathname on Windows |
vpcPlatformMac = $4D616320;
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Mac OS alias stored as a blob |
vpcPlatformMacX = $4D616358;
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MacX A file URL with UTF-8 encoding conforming to RFC 2396 |
VPC bitmap mask constants
vpcBitmapMask* vpcBitmapMaskBits = 32;
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LongWord Bitmap Masks |
vpcBitmapMaskNone = $00000000;
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LongWord (Used for fast counting of free blocks) |
vpcBitmapMaskAll = $FFFFFFFF;
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LongWord (Used for fast counting of used blocks) |
vpcBitmapMasks:array[0..31] of LongWord = (
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$00000001,$00000002,$00000004,$00000008,$00000010,$00000020,$00000040,$00000080,
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$00000100,$00000200,$00000400,$00000800,$00001000,$00002000,$00004000,$00008000,
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$00010000,$00020000,$00040000,$00080000,$00100000,$00200000,$00400000,$00800000,
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$01000000,$02000000,$04000000,$08000000,$10000000,$20000000,$40000000,$80000000);
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vpcBitmapMasks:array[0..31] of LongWord = (
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Ordered to allow for big endian bitmap |
$00000080,$00000040,$00000020,$00000010,$00000008,$00000004,$00000002,$00000001,
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$00008000,$00004000,$00002000,$00001000,$00000800,$00000400,$00000200,$00000100,
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$00800000,$00400000,$00200000,$00100000,$00080000,$00040000,$00020000,$00010000,
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$80000000,$40000000,$20000000,$10000000,$08000000,$04000000,$02000000,$01000000);
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VirtualBox constants
vbox* vboxFileExtension = '.vdi';
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vboxDiskBanner = '<<< Sun xVM VirtualBox Disk Image >>>';
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Plus a LF character in some images (#10) |
vboxDiskVersion = $00010001;
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vboxDiskSignature = $BEDA107F;
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vboxFileMask = '*.vdi';
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vboxPathMask = '*.*';
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vboxDeltaPath = '..\Machines\';
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vboxParentPath = '..\..\..\VDI\';
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vboxNewParentPath = '..\..\..\HardDisks\';
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vboxSnapshotPath = '\Snapshots\';
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vboxUnallocatedBlock = $FFFFFFFF;
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VirtualBox disk type constants
vboxDiskType* vboxMaxDiskType = 4;
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vboxDiskTypeNone = 0;
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vboxDiskTypeDynamic = 1;
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vboxDiskTypeStatic = 2;
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vboxDiskTypeUnknown = 3;
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vboxDiskTypeDifferencing = 4;
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VirtualBox disk flag constants
vboxDiskFlags* vboxDiskFlagsNone = $00000000;
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Type definitions
To be documented
Public variables
None defined
Function declarations
Initialization functions
procedure VirtualInit;
Description: To be documented
| Note | None documented |
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procedure VirtualQuit;
Description: To be documented
| Note | None documented |
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Virtual disk helper functions
function VirtualDataToPointer(const AData; ASize:Integer; ASwap:Boolean):Pointer;
Description: Creates a pointer and copies data from a buffer
| Note | Allows byte order swapping on copy |
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function VirtualPointerToData(APointer:Pointer; var AData; ASize:Integer; ASwap:Boolean):Boolean;
Description: Copies data to a buffer from supplied pointer
| Note | Allows byte order swapping on copy |
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function VirtualDataToString(const AData; ASize:Integer; AUnicode:Boolean):String;
Description: Converts the supplied data to a string
| Note | Accounts for unicode and byte ordering |
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function VirtualStringToData(const AString:String; var AData; ASize:Integer ;AUnicode:Boolean):Boolean;
Description: Converts the supplied string to data
| Note | Accounts for unicode and byte ordering |
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