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
164
165
166
|
/* $OpenBSD: disklabel.h,v 1.2 2002/03/14 01:26:36 millert Exp $ */
/*
* Copyright (c) 1994 Christopher G. Demetriou
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Christopher G. Demetriou.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _MACHINE_DISKLABEL_H_
#define _MACHINE_DISKLABEL_H_
#define LABELSECTOR 1 /* sector containing label */
#define LABELOFFSET 0 /* offset of label in sector */
#define MAXPARTITIONS 16 /* number of partitions */
#define RAW_PART 2 /* raw partition: ie. rsd0c */
/* MBR partition table */
#define DOSBBSECTOR 0 /* MBR sector number */
#define DOSPARTOFF 446 /* Offset of MBR partition table */
#define NDOSPART 4 /* # of partitions in MBR */
#define DOSMAGICOFF 510 /* Offset of magic number */
#define DOSMAGIC 0xaa55 /* Actual magic number */
#define MBRMAGIC DOSMAGIC
#define DOSMBR_SIGNATURE MBRMAGIC
#define DOSMBR_SIGNATURE_OFF DOSMAGICOFF
#define DOSACTIVE 0x80
struct dos_partition {
unsigned char dp_flag; /* default boot flag */
unsigned char dp_shd; /* start head, IsN't Always Meaningful */
unsigned char dp_ssect; /* start sector, INAM */
unsigned char dp_scyl; /* start cylinder, INAM */
unsigned char dp_typ; /* partition type */
unsigned char dp_ehd; /* end head, INAM */
unsigned char dp_esect; /* end sector, INAM */
unsigned char dp_ecyl; /* end cylinder, INAM */
unsigned long dp_start; /* absolute start sector number */
unsigned long dp_size; /* partition size in sectors */
};
/* Known DOS partition types. */
#define DOSPTYP_UNUSED 0x00 /* Unused partition */
#define DOSPTYP_FAT12 0x01 /* 12-bit FAT */
#define DOSPTYP_FAT16S 0x04 /* 16-bit FAT, less than 32M */
#define DOSPTYP_EXTEND 0x05 /* Extended; contains sub-partitions */
#define DOSPTYP_FAT16B 0x06 /* 16-bit FAT, more than 32M */
#define DOSPTYP_FAT32 0x0b /* 32-bit FAT */
#define DOSPTYP_FAT32L 0x0c /* 32-bit FAT, LBA-mapped */
#define DOSPTYP_FAT16C 0x0e /* 16-bit FAT, CHS-mapped */
#define DOSPTYP_EXTENDL 0x0f /* Extended, LBA-mapped; contains sub-partitions */
#define DOSPTYP_ONTRACK 0x54
#define DOSPTYP_LINUX 0x83 /* That other thing */
#define DOSPTYP_FREEBSD 0xa5 /* FreeBSD partition type */
#define DOSPTYP_OPENBSD 0xa6 /* OpenBSD partition type */
#define DOSPTYP_NETBSD 0xa9 /* NetBSD partition type */
#include <sys/dkbad.h>
/* Isolate the relevant bits to get sector and cylinder. */
#define DPSECT(s) ((s) & 0x3f)
#define DPCYL(c, s) ((c) + (((s) & 0xc0) << 2))
static __inline u_int32_t get_le(void *p);
static __inline u_int32_t
#ifdef __cplusplus
get_le(void *p)
#else
get_le(p)
void *p;
#endif
{
u_int8_t *_p = (u_int8_t *)p;
int x;
x = _p[0];
x |= _p[1] << 8;
x |= _p[2] << 16;
x |= _p[3] << 24;
return x;
}
/* HFS/DPME */
/* partition map structure from Inside Macintosh: Devices, SCSI Manager
* pp. 13-14. The partition map always begins on physical block 1.
*
* With the exception of block 0, all blocks on the disk must belong to
* exactly one partition. The partition map itself belongs to a partition
* of type `APPLE_PARTITION_MAP', and is not limited in size by anything
* other than available disk space. The partition map is not necessarily
* the first partition listed.
*/
struct part_map_entry {
#define PART_ENTRY_MAGIC 0x504d
u_int16_t pmSig; /* partition signature */
u_int16_t pmSigPad; /* (reserved) */
u_int32_t pmMapBlkCnt; /* number of blocks in partition map */
u_int32_t pmPyPartStart; /* first physical block of partition */
u_int32_t pmPartBlkCnt; /* number of blocks in partition */
char pmPartName[32]; /* partition name */
char pmPartType[32]; /* partition type */
u_int32_t pmLgDataStart; /* first logical block of data area */
u_int32_t pmDataCnt; /* number of blocks in data area */
u_int32_t pmPartStatus; /* partition status information */
u_int32_t pmLgBootStart; /* first logical block of boot code */
u_int32_t pmBootSize; /* size of boot code, in bytes */
u_int32_t pmBootLoad; /* boot code load address */
u_int32_t pmBootLoad2; /* (reserved) */
u_int32_t pmBootEntry; /* boot code entry point */
u_int32_t pmBootEntry2; /* (reserved) */
u_int32_t pmBootCksum; /* boot code checksum */
char pmProcessor[16]; /* processor type (e.g. "68020") */
u_int8_t pmBootArgs[128]; /* A/UX boot arguments */
/* we do not index the disk image as an array,
* leave out the on disk padding
*/
#if 0
u_int8_t pad[248]; /* pad to end of block */
#endif
};
#define PART_TYPE_DRIVER "APPLE_DRIVER"
#define PART_TYPE_DRIVER43 "APPLE_DRIVER43"
#define PART_TYPE_DRIVERATA "APPLE_DRIVER_ATA"
#define PART_TYPE_DRIVERIOKIT "APPLE_DRIVER_IOKIT"
#define PART_TYPE_FWDRIVER "APPLE_FWDRIVER"
#define PART_TYPE_FWB_COMPONENT "FWB DRIVER COMPONENTS"
#define PART_TYPE_FREE "APPLE_FREE"
#define PART_TYPE_MAC "APPLE_HFS"
#define PART_TYPE_OPENBSD "OPENBSD"
struct cpu_disklabel {
struct dos_partition dosparts[NDOSPART];
/* only store first entry and openbsd partition */
struct part_map_entry macparts[2];
struct dkbad bad;
};
#define DKBAD(x) ((x)->bad)
#endif /* _MACHINE_DISKLABEL_H_ */
|
