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/* $OpenBSD: disklabel.h,v 1.5 1996/10/06 19:59:56 pefo Exp $ */
/* $NetBSD: disklabel.h,v 1.2 1995/01/18 06:37:55 mellon 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 PARTITIONSHIFT 4 /* log2 */
#define PARTITIONMASK 0xf
#define RAW_PART 2 /* raw partition: xx?c */
/* DOS partition table -- used when the system is booted from a dos
* partition. This is the case on NT systems.
*/
#define DOSBBSECTOR 0 /* DOS boot block relative sector # */
#define DOSPARTOFF 446
#define NDOSPART 4
struct dos_partition {
unsigned char dp_flag; /* bootstrap flags */
unsigned char dp_shd; /* starting head */
unsigned char dp_ssect; /* starting sector */
unsigned char dp_scyl; /* starting cylinder */
unsigned char dp_typ; /* partition type (see below) */
unsigned char dp_ehd; /* end head */
unsigned char dp_esect; /* end sector */
unsigned char dp_ecyl; /* end cylinder */
unsigned long dp_start; /* absolute starting sector number */
unsigned long dp_size; /* partition size in sectors */
} dos_partitions[NDOSPART];
/* Known DOS partition types. */
#define DOSPTYP_386BSD 0xa5 /* 386BSD partition type */
#define DOSPTYP_NETBSD DOSPTYP_386BSD /* NetBSD partition type (XXX) */
#define DOSPTYP_OPENBSD 0xa6 /* OpenBSD partition type */
#define DOSPTYP_FAT12 0x1
#define DOSPTYP_FAT16S 0x4
#define DOSPTYP_FAT16B 0x6
#define DOSPTYP_FAT16C 0xe
#include <sys/dkbad.h>
struct cpu_disklabel {
struct dos_partition dosparts[NDOSPART];
struct dkbad bad;
};
/* Isolate the relevant bits to get sector and cylinder. */
#define DPSECT(s) ((s) & 0x3f)
#define DPCYL(c, s) ((c) + (((s) & 0xc0) << 2))
#ifdef _KERNEL
struct disklabel;
int bounds_check_with_label __P((struct buf *, struct disklabel *, int));
#endif
#endif /* _MACHINE_DISKLABEL_H_ */
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