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 #include <grub/partition.h>
  24
  25 struct grub_gpt_part_type
  26 {
  27   grub_uint32_t data1;
  28   grub_uint16_t data2;
  29   grub_uint16_t data3;
  30   grub_uint8_t data4[8];
  31 } __attribute__ ((aligned(8)));
  32 typedef struct grub_gpt_part_type grub_gpt_part_type_t;
  33
  34 #define GRUB_GPT_PARTITION_TYPE_EMPTY \
  35   { 0x0, 0x0, 0x0, \
  36     { 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 } \
  37   }
  38
  39 #define GRUB_GPT_PARTITION_TYPE_BIOS_BOOT \
  40   { grub_cpu_to_le32_compile_time (0x21686148), \
  41       grub_cpu_to_le16_compile_time (0x6449), \
  42       grub_cpu_to_le16_compile_time (0x6e6f),          \
  43     { 0x74, 0x4e, 0x65, 0x65, 0x64, 0x45, 0x46, 0x49 } \
  44   }
  45
  46 #define GRUB_GPT_PARTITION_TYPE_LDM \
  47   { grub_cpu_to_le32_compile_time (0x5808C8AAU),\
  48       grub_cpu_to_le16_compile_time (0x7E8F), \
  49       grub_cpu_to_le16_compile_time (0x42E0),          \
  50         { 0x85, 0xD2, 0xE1, 0xE9, 0x04, 0x34, 0xCF, 0xB3 }      \
  51   }
  52
  53 struct grub_gpt_header
  54 {
  55   grub_uint8_t magic[8];
  56   grub_uint32_t version;
  57   grub_uint32_t headersize;
  58   grub_uint32_t crc32;
  59   grub_uint32_t unused1;
  60   grub_uint64_t primary;
  61   grub_uint64_t backup;
  62   grub_uint64_t start;
  63   grub_uint64_t end;
  64   grub_uint8_t guid[16];
  65   grub_uint64_t partitions;
  66   grub_uint32_t maxpart;
  67   grub_uint32_t partentry_size;
  68   grub_uint32_t partentry_crc32;
  69 } GRUB_PACKED;
  70
  71 struct grub_gpt_partentry
  72 {
  73   grub_gpt_part_type_t type;
  74   grub_uint8_t guid[16];
  75   grub_uint64_t start;
  76   grub_uint64_t end;
  77   grub_uint64_t attrib;
  78   char name[72];
  79 } GRUB_PACKED;
  80
  81 grub_err_t
  82 grub_gpt_partition_map_iterate (grub_disk_t disk,
  83                                 grub_partition_iterate_hook_t hook,
  84                                 void *hook_data);
  85
  86
  87 #endif /* ! GRUB_GPT_PARTITION_HEADER */