def parsePrimaryVolumeDescriptor(bytesData):
# Set up elemement object to store extracted properties
properties = ET.Element("primaryVolumeDescriptor")
addProperty(properties, "typeCode", bc.bytesToUnsignedChar(bytesData[0:1]))
addProperty(properties, "standardIdentifier", bc.bytesToText(bytesData[1:6]))
addProperty(properties, "version", bc.bytesToUnsignedChar(bytesData[6:7]))
addProperty(properties, "systemIdentifier", bc.bytesToText(bytesData[8:40]))
addProperty(properties, "volumeIdentifier", bc.bytesToText(bytesData[40:72]))
# Fields below are stored as both little-endian and big-endian; only
# big-endian values read here!
# Number of Logical Blocks in which the volume is recorded
addProperty(properties, "volumeSpaceSize", bc.bytesToUInt(bytesData[84:88]))
# The size of the set in this logical volume (number of disks)
addProperty(properties, "volumeSetSize", bc.bytesToUShortInt(bytesData[122:124]))
# The number of this disk in the Volume Set
addProperty(properties, "volumeSequenceNumber", bc.bytesToUShortInt(bytesData[126:128]))
# The size in bytes of a logical block
addProperty(properties, "logicalBlockSize", bc.bytesToUShortInt(bytesData[130:132]))
# The size in bytes of the path table
addProperty(properties, "pathTableSize", bc.bytesToUInt(bytesData[136:140]))
# Location of Type-L Path Table (note this is stored as little-endian only, hence
# byte swap!)
addProperty(properties, "typeLPathTableLocation", bc.swap32(bc.bytesToUInt(bytesData[140:144])))
# Location of Optional Type-L Path Table
addProperty(properties, "optionalTypeLPathTableLocation", bc.swap32(bc.bytesToUInt(bytesData[144:148])))
# Location of Type-M Path Table
addProperty(properties, "typeMPathTableLocation", bc.bytesToUInt(bytesData[148:152]))
# Location of Optional Type-M Path Table
addProperty(properties, "optionalTypeMPathTableLocation", bc.bytesToUInt(bytesData[152:156]))
# Following fields are all text strings
addProperty(properties, "volumeSetIdentifier", bc.bytesToText(bytesData[190:318]))
addProperty(properties, "publisherIdentifier", bc.bytesToText(bytesData[318:446]))
addProperty(properties, "dataPreparerIdentifier", bc.bytesToText(bytesData[446:574]))
addProperty(properties, "applicationIdentifier", bc.bytesToText(bytesData[574:702]))
addProperty(properties, "copyrightFileIdentifier", bc.bytesToText(bytesData[702:740]))
addProperty(properties, "abstractFileIdentifier", bc.bytesToText(bytesData[740:776]))
addProperty(properties, "bibliographicFileIdentifier", bc.bytesToText(bytesData[776:813]))
# Following fields are all date-time values
addProperty(properties, "volumeCreationDateAndTime", decDateTimeToDate(bytesData[813:830]))
addProperty(properties, "volumeModificationDateAndTime", decDateTimeToDate(bytesData[830:847]))
addProperty(properties, "volumeExpirationDateAndTime", decDateTimeToDate(bytesData[847:864]))
addProperty(properties, "volumeEffectiveDateAndTime", decDateTimeToDate(bytesData[864:881]))
addProperty(properties, "fileStructureVersion", bc.bytesToUnsignedChar(bytesData[881:882]))
return(properties)
def parseMasterDirectoryBlock(bytesData):
# Based on description at:
# https://developer.apple.com/legacy/library/documentation/mac/Files/Files-102.html
# Set up elemement object to store extracted properties
properties = ET.Element("masterDirectoryBlock")
addProperty(properties, "signature", bc.bytesToText(bytesData[0:2]))
addProperty(properties, "blockSize", bc.bytesToUShortInt(bytesData[18:20]))
addProperty(properties, "blockCount", bc.bytesToUInt(bytesData[20:24]))
return (properties)
def parseAppleZeroBlock(bytesData):
# Based on code at:
# https://opensource.apple.com/source/IOStorageFamily/IOStorageFamily-116/IOApplePartitionScheme.h
# Set up elemement object to store extracted properties
properties = ET.Element("appleZeroBlock")
addProperty(properties, "signature", bc.bytesToText(bytesData[0:2]))
addProperty(properties, "blockSize", bc.bytesToUShortInt(bytesData[2:4]))
addProperty(properties, "blockCount", bc.bytesToUInt(bytesData[4:8]))
addProperty(properties, "deviceType", bc.bytesToUShortInt(bytesData[8:10]))
addProperty(properties, "deviceID", bc.bytesToUShortInt(bytesData[10:12]))
addProperty(properties, "driverData", bc.bytesToUInt(bytesData[12:16]))
addProperty(properties, "driverDescriptorCount", bc.bytesToUShortInt(bytesData[80:82]))
addProperty(properties, "driverDescriptorBlockStart", bc.bytesToUInt(bytesData[82:86]))
addProperty(properties, "driverDescriptorBlockCount", bc.bytesToUShortInt(bytesData[86:88]))
addProperty(properties, "driverDescriptorSystemType", bc.bytesToUShortInt(bytesData[88:90]))
return(properties)
def parseAppleZeroBlock(bytesData):
# Based on code at:
# https://opensource.apple.com/source/IOStorageFamily/IOStorageFamily-116/IOApplePartitionScheme.h
# Set up elemement object to store extracted properties
properties = ET.Element("appleZeroBlock")
addProperty(properties, "signature", bc.bytesToText(bytesData[0:2]))
addProperty(properties, "blockSize", bc.bytesToUShortInt(bytesData[2:4]))
addProperty(properties, "blockCount", bc.bytesToUInt(bytesData[4:8]))
addProperty(properties, "deviceType", bc.bytesToUShortInt(bytesData[8:10]))
addProperty(properties, "deviceID", bc.bytesToUShortInt(bytesData[10:12]))
addProperty(properties, "driverData", bc.bytesToUInt(bytesData[12:16]))
addProperty(properties, "driverDescriptorCount",
bc.bytesToUShortInt(bytesData[80:82]))
addProperty(properties, "driverDescriptorBlockStart",
bc.bytesToUInt(bytesData[82:86]))
addProperty(properties, "driverDescriptorBlockCount",
bc.bytesToUShortInt(bytesData[86:88]))
addProperty(properties, "driverDescriptorSystemType",
bc.bytesToUShortInt(bytesData[88:90]))
return (properties)
def parsePrimaryVolumeDescriptor(bytesData):
# Set up elemement object to store extracted properties
properties = ET.Element("primaryVolumeDescriptor")
addProperty(properties, "typeCode", bc.bytesToUnsignedChar(bytesData[0:1]))
addProperty(properties, "standardIdentifier",
bc.bytesToText(bytesData[1:6]))
addProperty(properties, "version", bc.bytesToUnsignedChar(bytesData[6:7]))
addProperty(properties, "systemIdentifier",
bc.bytesToText(bytesData[8:40]))
addProperty(properties, "volumeIdentifier",
bc.bytesToText(bytesData[40:72]))
# Fields below are stored as both little-endian and big-endian; only
# big-endian values read here!
# Number of Logical Blocks in which the volume is recorded
addProperty(properties, "volumeSpaceSize",
bc.bytesToUInt(bytesData[84:88]))
# The size of the set in this logical volume (number of disks)
addProperty(properties, "volumeSetSize",
bc.bytesToUShortInt(bytesData[122:124]))
# The number of this disk in the Volume Set
addProperty(properties, "volumeSequenceNumber",
bc.bytesToUShortInt(bytesData[126:128]))
# The size in bytes of a logical block
addProperty(properties, "logicalBlockSize",
bc.bytesToUShortInt(bytesData[130:132]))
# The size in bytes of the path table
addProperty(properties, "pathTableSize",
bc.bytesToUInt(bytesData[136:140]))
# Location of Type-L Path Table (note this is stored as little-endian only, hence
# byte swap!)
addProperty(properties, "typeLPathTableLocation",
bc.swap32(bc.bytesToUInt(bytesData[140:144])))
# Location of Optional Type-L Path Table
addProperty(properties, "optionalTypeLPathTableLocation",
bc.swap32(bc.bytesToUInt(bytesData[144:148])))
# Location of Type-M Path Table
addProperty(properties, "typeMPathTableLocation",
bc.bytesToUInt(bytesData[148:152]))
# Location of Optional Type-M Path Table
addProperty(properties, "optionalTypeMPathTableLocation",
bc.bytesToUInt(bytesData[152:156]))
# Following fields are all text strings
addProperty(properties, "volumeSetIdentifier",
bc.bytesToText(bytesData[190:318]))
addProperty(properties, "publisherIdentifier",
bc.bytesToText(bytesData[318:446]))
addProperty(properties, "dataPreparerIdentifier",
bc.bytesToText(bytesData[446:574]))
addProperty(properties, "applicationIdentifier",
bc.bytesToText(bytesData[574:702]))
addProperty(properties, "copyrightFileIdentifier",
bc.bytesToText(bytesData[702:740]))
addProperty(properties, "abstractFileIdentifier",
bc.bytesToText(bytesData[740:776]))
addProperty(properties, "bibliographicFileIdentifier",
bc.bytesToText(bytesData[776:813]))
# Following fields are all date-time values
addProperty(properties, "volumeCreationDateAndTime",
decDateTimeToDate(bytesData[813:830]))
addProperty(properties, "volumeModificationDateAndTime",
decDateTimeToDate(bytesData[830:847]))
addProperty(properties, "volumeExpirationDateAndTime",
decDateTimeToDate(bytesData[847:864]))
addProperty(properties, "volumeEffectiveDateAndTime",
decDateTimeToDate(bytesData[864:881]))
addProperty(properties, "fileStructureVersion",
bc.bytesToUnsignedChar(bytesData[881:882]))
return (properties)
