Apple Partion Map (APM)

Install via npm

$ npm install --save apple-partition-map

Index

• Related Modules
• Usage
• References

Related Modules

• mbr – Parse / construct Master Boot Records
• gpt – Parse / construct GUID partition tables
• disk – ...
• blockdevice – Read from / write to block devices
• udif – Apple Universal Disk Image Format (UDIF/DMG)

Usage

var APM = require( 'apple-partition-map' )

var apm = APM.parse( buffer )

APM {
  driverMap: DriverDescriptorMap {
    signature: 17746,
    blockSize: 512,
    blockCount: 62333952,
    deviceType: 0,
    deviceId: 0,
    driverData: 0,
    driverCount: 0,
    drivers: [
      { block: 0, size: 0, type: 0 },
      { block: 0, size: 0, type: 0 },
      { block: 0, size: 0, type: 0 },
      { block: 0, size: 0, type: 0 },
      { block: 0, size: 0, type: 0 },
      { block: 0, size: 0, type: 0 },
      { block: 0, size: 0, type: 0 },
      { block: 0, size: 0, type: 0 }
    ],
    reserved: <Buffer 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00...>
  },
  partitions: [
    Partition {
      signature: 20557,
      reserved1: 0,
      mapEntries: 6,
      pBlockStart: 1,
      pBlockCount: 63,
      name: 'Apple',
      type: 'Apple_partition_map',
      lBlockStart: 0,
      lBlockCount: 63,
      flags: 3,
      bootBlock: 0,
      bootBytes: 0,
      loadAddress: 0,
      loadAddress2: 0,
      gotoAddress: 0,
      gotoAddress2: 0,
      checksum: 0,
      cpuId: 0,
      reserved2: null,
      reserved3: null
    },
    Partition {
      signature: 20557,
      reserved1: 0,
      mapEntries: 6,
      pBlockStart: 64,
      pBlockCount: 262144,
      name: '',
      type: 'Apple_Free',
      lBlockStart: 0,
      lBlockCount: 0,
      flags: 0,
      bootBlock: 0,
      bootBytes: 0,
      loadAddress: 0,
      loadAddress2: 0,
      gotoAddress: 0,
      gotoAddress2: 0,
      checksum: 0,
      cpuId: 0,
      reserved2: null,
      reserved3: null
    },
    Partition {
      signature: 20557,
      reserved1: 0,
      mapEntries: 6,
      pBlockStart: 262208,
      pBlockCount: 19550904,
      name: '',
      type: 'Apple_HFS',
      lBlockStart: 0,
      lBlockCount: 19550904,
      flags: 1073741875,
      bootBlock: 0,
      bootBytes: 0,
      loadAddress: 0,
      loadAddress2: 0,
      gotoAddress: 0,
      gotoAddress2: 0,
      checksum: 0,
      cpuId: 0,
      reserved2: null,
      reserved3: null
    },
    Partition {
      signature: 20557,
      reserved1: 0,
      mapEntries: 6,
      pBlockStart: 19813112,
      pBlockCount: 32745368,
      name: '',
      type: 'Apple_HFSX',
      lBlockStart: 0,
      lBlockCount: 32745368,
      flags: 1073741875,
      bootBlock: 0,
      bootBytes: 0,
      loadAddress: 0,
      loadAddress2: 0,
      gotoAddress: 0,
      gotoAddress2: 0,
      checksum: 0,
      cpuId: 0,
      reserved2: null,
      reserved3: null
    },
    Partition {
      signature: 20557,
      reserved1: 0,
      mapEntries: 6,
      pBlockStart: 52558480,
      pBlockCount: 262144,
      name: 'Booter',
      type: 'DOS_FAT_32',
      lBlockStart: 0,
      lBlockCount: 262144,
      flags: 3221225523,
      bootBlock: 0,
      bootBytes: 0,
      loadAddress: 0,
      loadAddress2: 0,
      gotoAddress: 0,
      gotoAddress2: 0,
      checksum: 1131887160,
      cpuId: 0,
      reserved2: null,
      reserved3: null
    },
    Partition {
      signature: 20557,
      reserved1: 0,
      mapEntries: 6,
      pBlockStart: 52820624,
      pBlockCount: 9513328,
      name: '',
      type: 'Windows_NTFS',
      lBlockStart: 0,
      lBlockCount: 9513328,
      flags: 1073741875,
      bootBlock: 0,
      bootBytes: 0,
      loadAddress: 0,
      loadAddress2: 0,
      gotoAddress: 0,
      gotoAddress2: 0,
      checksum: 0,
      cpuId: 0,
      reserved2: null,
      reserved3: null
    }
  ]
}

References

• IOApplePartitionScheme.h
• IOApplePartitionScheme.cpp
• File System Forensic Analysis: PC-based Partitions
• Wikipedia / Apple Partition Map