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
|
/*
* GRUB -- GRand Unified Bootloader
* Copyright (C) 2009 Free Software Foundation, Inc.
*
* GRUB is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* GRUB is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef GRUB_MACHO_H
#define GRUB_MACHO_H 1
#include <grub/types.h>
/* Multi-architecture header. Always in big-endian. */
struct grub_macho_fat_header
{
grub_uint32_t magic;
grub_uint32_t nfat_arch;
} __attribute__ ((packed));
#define GRUB_MACHO_FAT_MAGIC 0xcafebabe
typedef grub_uint32_t grub_macho_cpu_type_t;
typedef grub_uint32_t grub_macho_cpu_subtype_t;
/* Architecture descriptor. Always in big-endian. */
struct grub_macho_fat_arch
{
grub_macho_cpu_type_t cputype;
grub_macho_cpu_subtype_t cpusubtype;
grub_uint32_t offset;
grub_uint32_t size;
grub_uint32_t align;
} __attribute__ ((packed));
/* File header for 32-bit. Always in native-endian. */
struct grub_macho_header32
{
#define GRUB_MACHO_MAGIC32 0xfeedface
grub_uint32_t magic;
grub_macho_cpu_type_t cputype;
grub_macho_cpu_subtype_t cpusubtype;
grub_uint32_t filetype;
grub_uint32_t ncmds;
grub_uint32_t sizeofcmds;
grub_uint32_t flags;
} __attribute__ ((packed));
/* File header for 64-bit. Always in native-endian. */
struct grub_macho_header64
{
#define GRUB_MACHO_MAGIC64 0xfeedfacf
grub_uint32_t magic;
grub_macho_cpu_type_t cputype;
grub_macho_cpu_subtype_t cpusubtype;
grub_uint32_t filetype;
grub_uint32_t ncmds;
grub_uint32_t sizeofcmds;
grub_uint32_t flags;
grub_uint32_t reserved;
} __attribute__ ((packed));
/* Common header of Mach-O commands. */
struct grub_macho_cmd
{
grub_uint32_t cmd;
grub_uint32_t cmdsize;
} __attribute__ ((packed));
typedef grub_uint32_t grub_macho_vmprot_t;
/* 32-bit segment command. */
struct grub_macho_segment32
{
#define GRUB_MACHO_CMD_SEGMENT32 1
grub_uint32_t cmd;
grub_uint32_t cmdsize;
grub_uint8_t segname[16];
grub_uint32_t vmaddr;
grub_uint32_t vmsize;
grub_uint32_t fileoff;
grub_uint32_t filesize;
grub_macho_vmprot_t maxprot;
grub_macho_vmprot_t initprot;
grub_uint32_t nsects;
grub_uint32_t flags;
} __attribute__ ((packed));
/* 64-bit segment command. */
struct grub_macho_segment64
{
#define GRUB_MACHO_CMD_SEGMENT64 0x19
grub_uint32_t cmd;
grub_uint32_t cmdsize;
grub_uint8_t segname[16];
grub_uint64_t vmaddr;
grub_uint64_t vmsize;
grub_uint64_t fileoff;
grub_uint64_t filesize;
grub_macho_vmprot_t maxprot;
grub_macho_vmprot_t initprot;
grub_uint32_t nsects;
grub_uint32_t flags;
} __attribute__ ((packed));
#define GRUB_MACHO_CMD_THREAD 5
struct grub_macho_lzss_header
{
char magic[8];
#define GRUB_MACHO_LZSS_MAGIC "complzss"
grub_uint32_t unused;
grub_uint32_t uncompressed_size;
grub_uint32_t compressed_size;
};
/* Convenience union. What do we need to load to identify the file type. */
union grub_macho_filestart
{
struct grub_macho_fat_header fat;
struct grub_macho_header32 thin32;
struct grub_macho_header64 thin64;
struct grub_macho_lzss_header lzss;
} __attribute__ ((packed));
#define GRUB_MACHO_LZSS_OFFSET 0x180
grub_size_t
grub_decompress_lzss (grub_uint8_t *dst, grub_uint8_t *dstend,
grub_uint8_t *src, grub_uint8_t *srcend);
#endif
|