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
|
/* $OpenBSD: mbr.h,v 1.4 1998/09/14 03:54:35 rahnds Exp $ */
/*
* Copyright (c) 1997 Tobias Weingartner
* 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 Tobias Weingartner.
* 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 _MBR_H
#define _MBR_H
#include "part.h"
/* Various constants */
#define MBR_CODE_SIZE 0x1B8
#define MBR_PART_SIZE 0x10
#define MBR_PART_OFF 0x1BE
#define MBR_NTSER_OFF 0x1B8
#define MBR_SPARE_OFF 0x1BC /* Spare short, not used */
#define MBR_SIG_OFF 0x1FE
/* MBR type */
typedef struct _mbr_t {
off_t reloffset;
off_t offset;
unsigned char code[MBR_CODE_SIZE];
unsigned long nt_serial;
unsigned short spare;
prt_t part[NDOSPART];
unsigned short signature;
} mbr_t;
/* Prototypes */
void MBR_print_disk __P((char *));
void MBR_print __P((mbr_t *));
void MBR_parse __P((disk_t *, char *, off_t, off_t, mbr_t *));
void MBR_make __P((mbr_t *, char *));
int MBR_read __P((int, off_t, char *));
int MBR_write __P((int, off_t, char *));
/* Sanity check */
#include <machine/param.h>
#if (DEV_BSIZE != 512)
#error "DEV_BSIZE != 512, somebody better fix!"
#endif
#endif _MBR_H
|