BaseTools/Source/C/BootSectImage/mbr.h

   1 /** @file
   2
   3   MBR Partition Entry and Table structure defintions.
   4
   5 Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
   6 This program and the accompanying materials
   7 are licensed and made available under the terms and conditions of the BSD License
   8 which accompanies this distribution.  The full text of the license may be found at
   9 http://opensource.org/licenses/bsd-license.php
  10
  11 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #ifndef _MBR_H_
  17 #define _MBR_H_
  18
  19 #include "CommonLib.h"
  20
  21 #pragma pack(1)
  22
  23 #define MAX_MBR_PARTITIONS          4
  24
  25 //
  26 // MBR Partition Entry
  27 //
  28 typedef struct {
  29   UINT8  BootIndicator;
  30   UINT8  StartHead;
  31   UINT8  StartSector;
  32   UINT8  StartTrack;
  33   UINT8  OSType;
  34   UINT8  EndHead;
  35   UINT8  EndSector;
  36   UINT8  EndTrack;
  37   UINT32 StartingLBA;
  38   UINT32 SizeInLBA;
  39 } MBR_PARTITION_RECORD;
  40
  41 //
  42 // MBR Partition table
  43 //
  44 typedef struct {
  45   UINT8                 BootCode[440];
  46   UINT32                UniqueMbrSignature;
  47   UINT16                Unknown;
  48   MBR_PARTITION_RECORD  PartitionRecord[MAX_MBR_PARTITIONS];
  49   UINT16                Signature;
  50 } MASTER_BOOT_RECORD;
  51
  52 #pragma pack()
  53
  54 #define MBR_SIGNATURE               0xAA55
  55 #define EXTENDED_DOS_PARTITION      0x05
  56 #define EXTENDED_WINDOWS_PARTITION  0x0F
  57
  58 #endif