src/shared/gpt.h

   1 /***
   2   This file is part of systemd.
   3
   4   Copyright 2014 Lennart Poettering
   5
   6   systemd is free software; you can redistribute it and/or modify it
   7   under the terms of the GNU Lesser General Public License as published by
   8   the Free Software Foundation; either version 2.1 of the License, or
   9   (at your option) any later version.
  10
  11   systemd is distributed in the hope that it will be useful, but
  12   WITHOUT ANY WARRANTY; without even the implied warranty of
  13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  14   Lesser General Public License for more details.
  15
  16   You should have received a copy of the GNU Lesser General Public License
  17   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  18 ***/
  19
  20 #pragma once
  21
  22 #include <endian.h>
  23
  24 #include "sd-id128.h"
  25
  26 /* We only support root disk discovery for x86, x86-64, Itanium and ARM for
  27  * now, since EFI for anything else doesn't really exist, and we only
  28  * care for root partitions on the same disk as the EFI ESP. */
  29
  30 #define GPT_ROOT_X86    SD_ID128_MAKE(44,47,95,40,f2,97,41,b2,9a,f7,d1,31,d5,f0,45,8a)
  31 #define GPT_ROOT_X86_64 SD_ID128_MAKE(4f,68,bc,e3,e8,cd,4d,b1,96,e7,fb,ca,f9,84,b7,09)
  32 #define GPT_ROOT_ARM    SD_ID128_MAKE(69,da,d7,10,2c,e4,4e,3c,b1,6c,21,a1,d4,9a,be,d3)
  33 #define GPT_ROOT_ARM_64 SD_ID128_MAKE(b9,21,b0,45,1d,f0,41,c3,af,44,4c,6f,28,0d,3f,ae)
  34 #define GPT_ROOT_IA64   SD_ID128_MAKE(99,3d,8d,3d,f8,0e,42,25,85,5a,9d,af,8e,d7,ea,97)
  35
  36 #define GPT_ESP         SD_ID128_MAKE(c1,2a,73,28,f8,1f,11,d2,ba,4b,00,a0,c9,3e,c9,3b)
  37 #define GPT_SWAP        SD_ID128_MAKE(06,57,fd,6d,a4,ab,43,c4,84,e5,09,33,c8,4b,4f,4f)
  38 #define GPT_HOME        SD_ID128_MAKE(93,3a,c7,e1,2e,b4,4f,13,b8,44,0e,14,e2,ae,f9,15)
  39 #define GPT_SRV         SD_ID128_MAKE(3b,8f,84,25,20,e0,4f,3b,90,7f,1a,25,a7,6f,98,e8)
  40
  41 #if defined(__x86_64__)
  42 #  define GPT_ROOT_NATIVE GPT_ROOT_X86_64
  43 #  define GPT_ROOT_SECONDARY GPT_ROOT_X86
  44 #elif defined(__i386__)
  45 #  define GPT_ROOT_NATIVE GPT_ROOT_X86
  46 #endif
  47
  48 #if defined(__ia64__)
  49 #  define GPT_ROOT_NATIVE GPT_ROOT_IA64
  50 #endif
  51
  52 #if defined(__aarch64__) && (__BYTE_ORDER != __BIG_ENDIAN)
  53 #  define GPT_ROOT_NATIVE GPT_ROOT_ARM_64
  54 #  define GPT_ROOT_SECONDARY GPT_ROOT_ARM
  55 #elif defined(__arm__) && (__BYTE_ORDER != __BIG_ENDIAN)
  56 #  define GPT_ROOT_NATIVE GPT_ROOT_ARM
  57 #endif
  58
  59 /* Flags we recognize on the root, swap, home and srv partitions when
  60  * doing auto-discovery. These happen to be identical to what
  61  * Microsoft defines for its own Basic Data Partitions, but that's
  62  * just because we saw no point in defining any other values here. */
  63 #define GPT_FLAG_READ_ONLY (1ULL << 60)
  64 #define GPT_FLAG_NO_AUTO (1ULL << 63)
  65
  66 #define GPT_LINUX_GENERIC SD_ID128_MAKE(0f,c6,3d,af,84,83,47,72,8e,79,3d,69,d8,47,7d,e4)