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7e5f8f38 KZ |
1 | #ifndef UTIL_LINUX_PT_MBR_H |
2 | #define UTIL_LINUX_PT_MBR_H | |
3 | ||
fdf8e1f5 SK |
4 | #include <assert.h> |
5 | ||
f917738e KZ |
6 | struct dos_partition { |
7 | unsigned char boot_ind; /* 0x80 - active */ | |
8 | unsigned char bh, bs, bc; /* begin CHS */ | |
71ade4da | 9 | unsigned char sys_ind; |
f917738e KZ |
10 | unsigned char eh, es, ec; /* end CHS */ |
11 | unsigned char start_sect[4]; | |
12 | unsigned char nr_sects[4]; | |
13 | } __attribute__((packed)); | |
14 | ||
15 | #define MBR_PT_OFFSET 0x1be | |
3457d90e | 16 | #define MBR_PT_BOOTBITS_SIZE 440 |
f917738e | 17 | |
e8bf93de KZ |
18 | static inline struct dos_partition *mbr_get_partition(unsigned char *mbr, int i) |
19 | { | |
20 | return (struct dos_partition *) | |
21 | (mbr + MBR_PT_OFFSET + (i * sizeof(struct dos_partition))); | |
22 | } | |
23 | ||
f917738e | 24 | /* assemble badly aligned little endian integer */ |
33b2e302 | 25 | static inline uint32_t __dos_assemble_4le(const unsigned char *p) |
f917738e | 26 | { |
33b2e302 SK |
27 | uint32_t last_byte = p[3]; |
28 | ||
29 | return p[0] | (p[1] << 8) | (p[2] << 16) | (last_byte << 24); | |
f917738e KZ |
30 | } |
31 | ||
b1981115 KZ |
32 | static inline void __dos_store_4le(unsigned char *p, unsigned int val) |
33 | { | |
fdf8e1f5 | 34 | assert(!(p == NULL)); |
b1981115 KZ |
35 | p[0] = (val & 0xff); |
36 | p[1] = ((val >> 8) & 0xff); | |
37 | p[2] = ((val >> 16) & 0xff); | |
38 | p[3] = ((val >> 24) & 0xff); | |
39 | } | |
40 | ||
b44244cb | 41 | static inline unsigned int dos_partition_get_start(struct dos_partition *p) |
f917738e | 42 | { |
b44244cb | 43 | return __dos_assemble_4le(&(p->start_sect[0])); |
f917738e KZ |
44 | } |
45 | ||
b44244cb | 46 | static inline void dos_partition_set_start(struct dos_partition *p, unsigned int n) |
f917738e | 47 | { |
b44244cb | 48 | __dos_store_4le(p->start_sect, n); |
f917738e KZ |
49 | } |
50 | ||
b44244cb KZ |
51 | static inline unsigned int dos_partition_get_size(struct dos_partition *p) |
52 | { | |
53 | return __dos_assemble_4le(&(p->nr_sects[0])); | |
54 | } | |
55 | ||
56 | static inline void dos_partition_set_size(struct dos_partition *p, unsigned int n) | |
57 | { | |
58 | __dos_store_4le(p->nr_sects, n); | |
59 | } | |
60 | ||
61 | static inline int mbr_is_valid_magic(const unsigned char *mbr) | |
f917738e KZ |
62 | { |
63 | return mbr[510] == 0x55 && mbr[511] == 0xaa ? 1 : 0; | |
64 | } | |
65 | ||
b44244cb KZ |
66 | static inline void mbr_set_magic(unsigned char *b) |
67 | { | |
68 | b[510] = 0x55; | |
69 | b[511] = 0xaa; | |
70 | } | |
71 | ||
72 | static inline unsigned int mbr_get_id(const unsigned char *mbr) | |
73 | { | |
74 | return __dos_assemble_4le(&mbr[440]); | |
75 | } | |
76 | ||
77 | static inline void mbr_set_id(unsigned char *b, unsigned int id) | |
f917738e | 78 | { |
b44244cb | 79 | __dos_store_4le(&b[440], id); |
f917738e KZ |
80 | } |
81 | ||
7e5f8f38 KZ |
82 | enum { |
83 | MBR_EMPTY_PARTITION = 0x00, | |
84 | MBR_FAT12_PARTITION = 0x01, | |
85 | MBR_XENIX_ROOT_PARTITION = 0x02, | |
86 | MBR_XENIX_USR_PARTITION = 0x03, | |
87 | MBR_FAT16_LESS32M_PARTITION = 0x04, | |
88 | MBR_DOS_EXTENDED_PARTITION = 0x05, | |
89 | MBR_FAT16_PARTITION = 0x06, /* DOS 16-bit >=32M */ | |
90 | MBR_HPFS_NTFS_PARTITION = 0x07, /* OS/2 IFS, eg, HPFS or NTFS or QNX */ | |
91 | MBR_AIX_PARTITION = 0x08, /* AIX boot (AIX -- PS/2 port) or SplitDrive */ | |
92 | MBR_AIX_BOOTABLE_PARTITION = 0x09, /* AIX data or Coherent */ | |
93 | MBR_OS2_BOOTMNGR_PARTITION = 0x0a, /* OS/2 Boot Manager */ | |
94 | MBR_W95_FAT32_PARTITION = 0x0b, | |
95 | MBR_W95_FAT32_LBA_PARTITION = 0x0c, /* LBA really is `Extended Int 13h' */ | |
96 | MBR_W95_FAT16_LBA_PARTITION = 0x0e, | |
97 | MBR_W95_EXTENDED_PARTITION = 0x0f, | |
98 | MBR_OPUS_PARTITION = 0x10, | |
99 | MBR_HIDDEN_FAT12_PARTITION = 0x11, | |
100 | MBR_COMPAQ_DIAGNOSTICS_PARTITION = 0x12, | |
101 | MBR_HIDDEN_FAT16_L32M_PARTITION = 0x14, | |
102 | MBR_HIDDEN_FAT16_PARTITION = 0x16, | |
103 | MBR_HIDDEN_HPFS_NTFS_PARTITION = 0x17, | |
104 | MBR_AST_SMARTSLEEP_PARTITION = 0x18, | |
105 | MBR_HIDDEN_W95_FAT32_PARTITION = 0x1b, | |
106 | MBR_HIDDEN_W95_FAT32LBA_PARTITION = 0x1c, | |
107 | MBR_HIDDEN_W95_FAT16LBA_PARTITION = 0x1e, | |
108 | MBR_NEC_DOS_PARTITION = 0x24, | |
109 | MBR_PLAN9_PARTITION = 0x39, | |
110 | MBR_PARTITIONMAGIC_PARTITION = 0x3c, | |
111 | MBR_VENIX80286_PARTITION = 0x40, | |
112 | MBR_PPC_PREP_BOOT_PARTITION = 0x41, | |
113 | MBR_SFS_PARTITION = 0x42, | |
114 | MBR_QNX_4X_PARTITION = 0x4d, | |
115 | MBR_QNX_4X_2ND_PARTITION = 0x4e, | |
116 | MBR_QNX_4X_3RD_PARTITION = 0x4f, | |
117 | MBR_DM_PARTITION = 0x50, | |
118 | MBR_DM6_AUX1_PARTITION = 0x51, /* (or Novell) */ | |
119 | MBR_CPM_PARTITION = 0x52, /* CP/M or Microport SysV/AT */ | |
120 | MBR_DM6_AUX3_PARTITION = 0x53, | |
121 | MBR_DM6_PARTITION = 0x54, | |
122 | MBR_EZ_DRIVE_PARTITION = 0x55, | |
123 | MBR_GOLDEN_BOW_PARTITION = 0x56, | |
124 | MBR_PRIAM_EDISK_PARTITION = 0x5c, | |
125 | MBR_SPEEDSTOR_PARTITION = 0x61, | |
126 | MBR_GNU_HURD_PARTITION = 0x63, /* GNU HURD or Mach or Sys V/386 (such as ISC UNIX) */ | |
127 | MBR_UNIXWARE_PARTITION = MBR_GNU_HURD_PARTITION, | |
128 | MBR_NETWARE_286_PARTITION = 0x64, | |
129 | MBR_NETWARE_386_PARTITION = 0x65, | |
130 | MBR_DISKSECURE_MULTIBOOT_PARTITION = 0x70, | |
131 | MBR_PC_IX_PARTITION = 0x75, | |
132 | MBR_OLD_MINIX_PARTITION = 0x80, /* Minix 1.4a and earlier */ | |
133 | MBR_MINIX_PARTITION = 0x81, /* Minix 1.4b and later */ | |
134 | MBR_LINUX_SWAP_PARTITION = 0x82, | |
135 | MBR_SOLARIS_X86_PARTITION = MBR_LINUX_SWAP_PARTITION, | |
136 | MBR_LINUX_DATA_PARTITION = 0x83, | |
3e9a2bbb JJ |
137 | MBR_OS2_HIDDEN_DRIVE_PARTITION = 0x84, /* also hibernation MS APM, Intel Rapid Start */ |
138 | MBR_INTEL_HIBERNATION_PARTITION = MBR_OS2_HIDDEN_DRIVE_PARTITION, | |
7e5f8f38 KZ |
139 | MBR_LINUX_EXTENDED_PARTITION = 0x85, |
140 | MBR_NTFS_VOL_SET1_PARTITION = 0x86, | |
141 | MBR_NTFS_VOL_SET2_PARTITION = 0x87, | |
142 | MBR_LINUX_PLAINTEXT_PARTITION = 0x88, | |
143 | MBR_LINUX_LVM_PARTITION = 0x8e, | |
144 | MBR_AMOEBA_PARTITION = 0x93, | |
145 | MBR_AMOEBA_BBT_PARTITION = 0x94, /* (bad block table) */ | |
146 | MBR_BSD_OS_PARTITION = 0x9f, /* BSDI */ | |
147 | MBR_THINKPAD_HIBERNATION_PARTITION = 0xa0, | |
148 | MBR_FREEBSD_PARTITION = 0xa5, /* various BSD flavours */ | |
149 | MBR_OPENBSD_PARTITION = 0xa6, | |
150 | MBR_NEXTSTEP_PARTITION = 0xa7, | |
151 | MBR_DARWIN_UFS_PARTITION = 0xa8, | |
152 | MBR_NETBSD_PARTITION = 0xa9, | |
153 | MBR_DARWIN_BOOT_PARTITION = 0xab, | |
154 | MBR_HFS_HFS_PARTITION = 0xaf, | |
155 | MBR_BSDI_FS_PARTITION = 0xb7, | |
156 | MBR_BSDI_SWAP_PARTITION = 0xb8, | |
157 | MBR_BOOTWIZARD_HIDDEN_PARTITION = 0xbb, | |
25156ba1 | 158 | MBR_ACRONIS_FAT32LBA_PARTITION = 0xbc, /* Acronis Secure Zone with ipl for loader F11.SYS */ |
7e5f8f38 KZ |
159 | MBR_SOLARIS_BOOT_PARTITION = 0xbe, |
160 | MBR_SOLARIS_PARTITION = 0xbf, | |
161 | MBR_DRDOS_FAT12_PARTITION = 0xc1, | |
162 | MBR_DRDOS_FAT16_L32M_PARTITION = 0xc4, | |
163 | MBR_DRDOS_FAT16_PARTITION = 0xc6, | |
164 | MBR_SYRINX_PARTITION = 0xc7, | |
165 | MBR_NONFS_DATA_PARTITION = 0xda, | |
166 | MBR_CPM_CTOS_PARTITION = 0xdb, /* CP/M or Concurrent CP/M or Concurrent DOS or CTOS */ | |
167 | MBR_DELL_UTILITY_PARTITION = 0xde, /* Dell PowerEdge Server utilities */ | |
168 | MBR_BOOTIT_PARTITION = 0xdf, /* BootIt EMBRM */ | |
169 | MBR_DOS_ACCESS_PARTITION = 0xe1, /* DOS access or SpeedStor 12-bit FAT extended partition */ | |
170 | MBR_DOS_RO_PARTITION = 0xe3, /* DOS R/O or SpeedStor */ | |
171 | MBR_SPEEDSTOR_EXTENDED_PARTITION = 0xe4, /* SpeedStor 16-bit FAT extended partition < 1024 cyl. */ | |
b12b07e3 | 172 | MBR_RUFUS_EXTRA_PARTITION = 0xea, /* Rufus extra partition for alignment */ |
7e5f8f38 KZ |
173 | MBR_BEOS_FS_PARTITION = 0xeb, |
174 | MBR_GPT_PARTITION = 0xee, /* Intel EFI GUID Partition Table */ | |
175 | MBR_EFI_SYSTEM_PARTITION = 0xef, /* Intel EFI System Partition */ | |
176 | MBR_LINUX_PARISC_BOOT_PARTITION = 0xf0, /* Linux/PA-RISC boot loader */ | |
177 | MBR_SPEEDSTOR1_PARTITION = 0xf1, | |
178 | MBR_SPEEDSTOR2_PARTITION = 0xf4, /* SpeedStor large partition */ | |
179 | MBR_DOS_SECONDARY_PARTITION = 0xf2, /* DOS 3.3+ secondary */ | |
180 | MBR_VMWARE_VMFS_PARTITION = 0xfb, | |
181 | MBR_VMWARE_VMKCORE_PARTITION = 0xfc, /* VMware kernel dump partition */ | |
9f3d0fce | 182 | MBR_LINUX_RAID_PARTITION = 0xfd, /* Linux raid partition with autodetect using persistent superblock */ |
7e5f8f38 KZ |
183 | MBR_LANSTEP_PARTITION = 0xfe, /* SpeedStor >1024 cyl. or LANstep */ |
184 | MBR_XENIX_BBT_PARTITION = 0xff, /* Xenix Bad Block Table */ | |
185 | }; | |
186 | ||
187 | #endif /* UTIL_LINUX_PT_MBR_H */ |