src/shared/gpt.h

   1 #pragma once
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2014 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU Lesser General Public License as published by
  10   the Free Software Foundation; either version 2.1 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   Lesser General Public License for more details.
  17
  18   You should have received a copy of the GNU Lesser General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  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 #define GPT_ESP         SD_ID128_MAKE(c1,2a,73,28,f8,1f,11,d2,ba,4b,00,a0,c9,3e,c9,3b)
  36 #define GPT_SWAP        SD_ID128_MAKE(06,57,fd,6d,a4,ab,43,c4,84,e5,09,33,c8,4b,4f,4f)
  37 #define GPT_HOME        SD_ID128_MAKE(93,3a,c7,e1,2e,b4,4f,13,b8,44,0e,14,e2,ae,f9,15)
  38 #define GPT_SRV         SD_ID128_MAKE(3b,8f,84,25,20,e0,4f,3b,90,7f,1a,25,a7,6f,98,e8)
  39
  40 /* Verity partitions for the root partitions above (we only define them for the root partitions, because only they are
  41  * are commonly read-only and hence suitable for verity). */
  42 #define GPT_ROOT_X86_VERITY    SD_ID128_MAKE(d1,3c,5d,3b,b5,d1,42,2a,b2,9f,94,54,fd,c8,9d,76)
  43 #define GPT_ROOT_X86_64_VERITY SD_ID128_MAKE(2c,73,57,ed,eb,d2,46,d9,ae,c1,23,d4,37,ec,2b,f5)
  44 #define GPT_ROOT_ARM_VERITY    SD_ID128_MAKE(73,86,cd,f2,20,3c,47,a9,a4,98,f2,ec,ce,45,a2,d6)
  45 #define GPT_ROOT_ARM_64_VERITY SD_ID128_MAKE(df,33,00,ce,d6,9f,4c,92,97,8c,9b,fb,0f,38,d8,20)
  46 #define GPT_ROOT_IA64_VERITY   SD_ID128_MAKE(86,ed,10,d5,b6,07,45,bb,89,57,d3,50,f2,3d,05,71)
  47
  48
  49 #if defined(__x86_64__)
  50 #  define GPT_ROOT_NATIVE GPT_ROOT_X86_64
  51 #  define GPT_ROOT_SECONDARY GPT_ROOT_X86
  52 #  define GPT_ROOT_NATIVE_VERITY GPT_ROOT_X86_64_VERITY
  53 #  define GPT_ROOT_SECONDARY_VERITY GPT_ROOT_X86_VERITY
  54 #elif defined(__i386__)
  55 #  define GPT_ROOT_NATIVE GPT_ROOT_X86
  56 #  define GPT_ROOT_NATIVE_VERITY GPT_ROOT_X86_VERITY
  57 #endif
  58
  59 #if defined(__ia64__)
  60 #  define GPT_ROOT_NATIVE GPT_ROOT_IA64
  61 #  define GPT_ROOT_NATIVE_VERITY GPT_ROOT_IA64_VERITY
  62 #endif
  63
  64 #if defined(__aarch64__) && (__BYTE_ORDER != __BIG_ENDIAN)
  65 #  define GPT_ROOT_NATIVE GPT_ROOT_ARM_64
  66 #  define GPT_ROOT_SECONDARY GPT_ROOT_ARM
  67 #  define GPT_ROOT_NATIVE_VERITY GPT_ROOT_ARM_64_VERITY
  68 #  define GPT_ROOT_SECONDARY_VERITY GPT_ROOT_ARM_VERITY
  69 #elif defined(__arm__) && (__BYTE_ORDER != __BIG_ENDIAN)
  70 #  define GPT_ROOT_NATIVE GPT_ROOT_ARM
  71 #  define GPT_ROOT_NATIVE_VERITY GPT_ROOT_ARM_VERITY
  72 #endif
  73
  74 #define GPT_FLAG_NO_BLOCK_IO_PROTOCOL (1ULL << 1)
  75
  76 /* Flags we recognize on the root, swap, home and srv partitions when
  77  * doing auto-discovery. These happen to be identical to what
  78  * Microsoft defines for its own Basic Data Partitions, but that's
  79  * just because we saw no point in defining any other values here. */
  80 #define GPT_FLAG_READ_ONLY (1ULL << 60)
  81 #define GPT_FLAG_NO_AUTO (1ULL << 63)
  82
  83 #define GPT_LINUX_GENERIC SD_ID128_MAKE(0f,c6,3d,af,84,83,47,72,8e,79,3d,69,d8,47,7d,e4)