include/grub/gpt_partition.h

   1 /*
   2  *  GRUB  --  GRand Unified Bootloader
   3  *  Copyright (C) 2002,2005,2006,2007,2008  Free Software Foundation, Inc.
   4  *
   5  *  GRUB is free software: you can redistribute it and/or modify
   6  *  it under the terms of the GNU General Public License as published by
   7  *  the Free Software Foundation, either version 3 of the License, or
   8  *  (at your option) any later version.
   9  *
  10  *  GRUB is distributed in the hope that it will be useful,
  11  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  *  GNU General Public License for more details.
  14  *
  15  *  You should have received a copy of the GNU General Public License
  16  *  along with GRUB.  If not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #ifndef GRUB_GPT_PARTITION_HEADER
  20 #define GRUB_GPT_PARTITION_HEADER       1
  21
  22 #include <grub/types.h>
  23
  24 struct grub_gpt_part_type
  25 {
  26   grub_uint32_t data1;
  27   grub_uint16_t data2;
  28   grub_uint16_t data3;
  29   grub_uint8_t data4[8];
  30 } __attribute__ ((aligned(8)));
  31 typedef struct grub_gpt_part_type grub_gpt_part_type_t;
  32
  33 #define GRUB_GPT_PARTITION_TYPE_EMPTY \
  34   { 0x0, 0x0, 0x0, \
  35     { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 } \
  36   }
  37
  38 #define GRUB_GPT_PARTITION_TYPE_BIOS_BOOT \
  39   { grub_cpu_to_le32 (0x21686148), grub_cpu_to_le16 (0x6449), grub_cpu_to_le16 (0x6e6f), \
  40     { 0x74, 0x4e, 0x65, 0x65, 0x64, 0x45, 0x46, 0x49 } \
  41   }
  42
  43 struct grub_gpt_header
  44 {
  45   grub_uint8_t magic[8];
  46   grub_uint32_t version;
  47   grub_uint32_t headersize;
  48   grub_uint32_t crc32;
  49   grub_uint32_t unused1;
  50   grub_uint64_t primary;
  51   grub_uint64_t backup;
  52   grub_uint64_t start;
  53   grub_uint64_t end;
  54   grub_uint8_t guid[16];
  55   grub_uint64_t partitions;
  56   grub_uint32_t maxpart;
  57   grub_uint32_t partentry_size;
  58   grub_uint32_t partentry_crc32;
  59 } __attribute__ ((packed));
  60
  61 struct grub_gpt_partentry
  62 {
  63   grub_gpt_part_type_t type;
  64   grub_uint8_t guid[16];
  65   grub_uint64_t start;
  66   grub_uint64_t end;
  67   grub_uint64_t attrib;
  68   char name[72];
  69 } __attribute__ ((packed));
  70
  71 #endif /* ! GRUB_GPT_PARTITION_HEADER */