forked from rageworx/rkdeveloptool
-
Notifications
You must be signed in to change notification settings - Fork 0
/
gpt.h
163 lines (151 loc) · 4.33 KB
/
gpt.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
#ifndef _GPT_H
#define _GPT_H
#define MSDOS_MBR_SIGNATURE 0xAA55
#define EFI_PMBR_OSTYPE_EFI 0xEF
#define EFI_PMBR_OSTYPE_EFI_GPT 0xEE
#define GPT_HEADER_SIGNATURE 0x5452415020494645ULL
#define GPT_HEADER_REVISION_V1 0x00010000
#define GPT_PRIMARY_PARTITION_TABLE_LBA 1ULL
#define GPT_ENTRY_NAME "gpt"
#define GPT_ENTRY_NUMBERS 128
#define GPT_ENTRY_SIZE 128
#define PART_PROPERTY_BOOTABLE (1 << 2)
#define EFI_GUID(a,b,c,d0,d1,d2,d3,d4,d5,d6,d7) \
((efi_guid_t) \
{{ (a) & 0xff, ((a) >> 8) & 0xff, ((a) >> 16) & 0xff, ((a) >> 24) & 0xff, \
(b) & 0xff, ((b) >> 8) & 0xff, \
(c) & 0xff, ((c) >> 8) & 0xff, \
(d0), (d1), (d2), (d3), (d4), (d5), (d6), (d7) }})
#define PARTITION_IDBLOCK_GUID \
EFI_GUID(0xDA2BB095, 0x390E, 0x48ca, \
0x90, 0x47, 0x05, 0xE8, 0x18, 0xB2, 0x97, 0xCE)
typedef unsigned char u8;
typedef unsigned short u16;
typedef unsigned int u32;
typedef unsigned long long u64;
#define uswap_16(x) \
((((x) & 0xff00) >> 8) | \
(((x) & 0x00ff) << 8))
#define uswap_32(x) \
((((x) & 0xff000000) >> 24) | \
(((x) & 0x00ff0000) >> 8) | \
(((x) & 0x0000ff00) << 8) | \
(((x) & 0x000000ff) << 24))
#define _uswap_64(x, sfx) \
((((x) & 0xff00000000000000##sfx) >> 56) | \
(((x) & 0x00ff000000000000##sfx) >> 40) | \
(((x) & 0x0000ff0000000000##sfx) >> 24) | \
(((x) & 0x000000ff00000000##sfx) >> 8) | \
(((x) & 0x00000000ff000000##sfx) << 8) | \
(((x) & 0x0000000000ff0000##sfx) << 24) | \
(((x) & 0x000000000000ff00##sfx) << 40) | \
(((x) & 0x00000000000000ff##sfx) << 56))
#if defined(__GNUC__)
# define uswap_64(x) _uswap_64(x, ull)
#else
# define uswap_64(x) _uswap_64(x, )
#endif
#define __LITTLE_ENDIAN__ 1
#ifdef __LITTLE_ENDIAN__
# define cpu_to_le16(x) (x)
# define cpu_to_le32(x) (x)
# define cpu_to_le64(x) (x)
# define le16_to_cpu(x) (x)
# define le32_to_cpu(x) (x)
# define le64_to_cpu(x) (x)
# define cpu_to_be16(x) uswap_16(x)
# define cpu_to_be32(x) uswap_32(x)
# define cpu_to_be64(x) uswap_64(x)
# define be16_to_cpu(x) uswap_16(x)
# define be32_to_cpu(x) uswap_32(x)
# define be64_to_cpu(x) uswap_64(x)
#else
# define cpu_to_le16(x) uswap_16(x)
# define cpu_to_le32(x) uswap_32(x)
# define cpu_to_le64(x) uswap_64(x)
# define le16_to_cpu(x) uswap_16(x)
# define le32_to_cpu(x) uswap_32(x)
# define le64_to_cpu(x) uswap_64(x)
# define cpu_to_be16(x) (x)
# define cpu_to_be32(x) (x)
# define cpu_to_be64(x) (x)
# define be16_to_cpu(x) (x)
# define be32_to_cpu(x) (x)
# define be64_to_cpu(x) (x)
#endif
typedef union {
struct {
unsigned int time_low;
unsigned short time_mid;
unsigned short time_hi_and_version;
unsigned char clock_seq_hi_and_reserved;
unsigned char clock_seq_low;
unsigned char node[6];
} uuid;
u8 raw[16];
} efi_guid_t;
#pragma pack(1)
typedef struct {
u16 usTag;/*0xEEEE*/
u16 usBackupGpt;/*0:no backup,1:has backup*/
u16 usEntryCount;
u64 entryDataSize[32];
} gpt_compact_info;
/* based on linux/include/genhd.h */
typedef struct {
u8 boot_ind; /* 0x80 - active */
u8 head; /* starting head */
u8 sector; /* starting sector */
u8 cyl; /* starting cylinder */
u8 sys_ind; /* What partition type */
u8 end_head; /* end head */
u8 end_sector; /* end sector */
u8 end_cyl; /* end cylinder */
u32 start_sect; /* starting sector counting from 0 */
u32 nr_sects; /* nr of sectors in partition */
} mbr_partition ;
/* based on linux/fs/partitions/efi.h */
typedef struct _gpt_header {
u64 signature;
u32 revision;
u32 header_size;
u32 header_crc32;
u32 reserved1;
u64 my_lba;
u64 alternate_lba;
u64 first_usable_lba;
u64 last_usable_lba;
efi_guid_t disk_guid;
u64 partition_entry_lba;
u32 num_partition_entries;
u32 sizeof_partition_entry;
u32 partition_entry_array_crc32;
} gpt_header;
typedef union _gpt_entry_attributes {
struct {
u64 required_to_function:1;
u64 no_block_io_protocol:1;
u64 legacy_bios_bootable:1;
u64 reserved:45;
u64 type_guid_specific:16;
} fields;
unsigned long long raw;
} gpt_entry_attributes;
#define PARTNAME_SZ 72
typedef struct _gpt_entry {
efi_guid_t partition_type_guid;
efi_guid_t unique_partition_guid;
u64 starting_lba;
u64 ending_lba;
gpt_entry_attributes attributes;
u16 partition_name[PARTNAME_SZ / sizeof(u16)];
} gpt_entry;
typedef struct _legacy_mbr {
u8 boot_code[440];
u32 unique_mbr_signature;
u16 unknown;
mbr_partition partition_record[4];
u16 signature;
} legacy_mbr;
#pragma pack()
#endif /* _GPT_H */