rom/partition/partitiongpt.h

   1 /*
   2     Copyright © 1995-2012, The AROS Development Team. All rights reserved.
   3     $Id$
   4 */
   5
   6 #ifndef PARTITIONGPT_H
   7 #define PARTITIONGPT_H
   8
   9 #include <libraries/uuid.h>
  10
  11 /* Type ID for legacy MBR */
  12 #define MBRT_GPT 0xEE
  13
  14 /* GPT partition table header */
  15 struct GPTHeader
  16 {
  17     char   Signature[8];        /* ID signature                                           */
  18     ULONG  Revision;            /* Revision number                                        */
  19     ULONG  HeaderSize;          /* Size of this structure                                 */
  20     ULONG  HeaderCRC32;         /* CRC32 of the header                                    */
  21     ULONG  Reserved;
  22     UQUAD  CurrentBlock;        /* Number of block where this structure is placed         */
  23     UQUAD  BackupBlock;         /* Number of block where backup partition table is placed */
  24     UQUAD  DataStart;           /* Number of the first usable block for data              */
  25     UQUAD  DataEnd;             /* Number of the last usable block for data               */
  26     uuid_t DiskID;              /* Disk unique ID                                         */
  27     UQUAD  StartBlock;          /* Number of the first partition entry block              */
  28     ULONG  NumEntries;          /* Number of partitions in the table                      */
  29     ULONG  EntrySize;           /* Size of one entry                                      */
  30     ULONG  PartCRC32;           /* CRC32 of the partition entries array                   */
  31                                 /* The rest is reserved                                   */
  32 };
  33
  34 #define GPT_SIGNATURE      "EFI PART"
  35 #define GPT_MIN_HEADER_SIZE 92
  36 #define GPT_MAX_HEADER_SIZE 512
  37
  38 struct GPTPartition
  39 {
  40     uuid_t TypeID;      /* Partition type ID            */
  41     uuid_t PartitionID; /* Partition unique ID          */
  42     UQUAD  StartBlock;  /* Number of the first block    */
  43     UQUAD  EndBlock;    /* Number of the last block     */
  44     ULONG  Flags0;      /* Flags                        */
  45     ULONG  Flags1;
  46     UBYTE  Name[72];    /* Name in UTF16-LE encoding    */
  47 };
  48
  49 /* Flags0 and Flags1, according to Microsoft(R) */
  50 #define GPT_PF0_SYSTEM   (1 << 0)
  51 #define GPT_PF1_READONLY (1 << 29)
  52 #define GPT_PF1_HIDDEN   (1 << 30)
  53 #define GPT_PF1_NOMOUNT  (1 << 31)
  54
  55 /* AROS-specific flags */
  56 #define GPT_PF1_AROS_BOOTABLE (1 << 28)
  57 #define GPT_PF1_AROS_BOOTPRI  0x000000FF        /* Mask for boot priority */
  58
  59 #endif /* PARTITIONGPT_H */