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/*
* Copyright (c) 2002 Apple Computer, Inc. All rights reserved.
*
* @APPLE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this
* file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
* 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"
#ifndef NDOSPART
#define NDOSPART 4
#define DOSPTYP_UNUSED 0
#define DOSPTYP_EXTEND 5
#define DOSPTYP_EXTENDL 15
#define DOSACTIVE 128
#endif
/* Various constants */
#define MBR_CODE_SIZE 0x1BE
#define MBR_PART_SIZE 0x10
#define MBR_PART_OFF 0x1BE
#define MBR_SIG_OFF 0x1FE
/* MBR_BUF_SIZE is the largest sector size we support */
#define MBR_BUF_SIZE 4096
#define MBR_SIGNATURE 0xAA55
/* MBR type */
typedef struct _mbr_t {
off_t reloffset; /* the offset of the first extended partition that contains all the rest */
off_t offset; /* the absolute offset of this partition */
struct _mbr_t *next; /* pointer to the next MBR in an extended partition chain */
unsigned char code[MBR_CODE_SIZE];
unsigned short signature;
prt_t part[NDOSPART];
unsigned char buf[MBR_BUF_SIZE];
} mbr_t;
/* Prototypes */
void MBR_print_disk __P((char *));
void MBR_print __P((mbr_t *));
void MBR_print_all __P((mbr_t *));
void MBR_parse __P((disk_t *, off_t, off_t, mbr_t *));
void MBR_make __P((mbr_t *));
void MBR_init __P((disk_t *, mbr_t *));
int MBR_read __P((disk_t *,int, off_t, mbr_t *));
int MBR_write __P((disk_t *,int, mbr_t *));
void MBR_pcopy __P((disk_t *, mbr_t *));
mbr_t * MBR_parse_spec __P((FILE *, disk_t *));
void MBR_dump __P((mbr_t *));
void MBR_dump_all __P((mbr_t *));
mbr_t *MBR_alloc __P((mbr_t *));
void MBR_free __P((mbr_t *));
mbr_t * MBR_read_all __P((disk_t *));
int MBR_write_all __P((disk_t *, mbr_t *));
void MBR_clear __P((mbr_t *));
/* Sanity check */
#include <machine/param.h>
#if (DEV_BSIZE != 512)
#error "DEV_BSIZE != 512, somebody better fix me!"
#endif
#endif /* _MBR_H */
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