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/* $OpenBSD: disklabel.h,v 1.5 1997/09/29 18:55:13 deraadt Exp $ */
/* $NetBSD: disklabel.h,v 1.1 1996/09/30 16:34:22 ws Exp $ */
/*-
* Copyright (C) 1995, 1996 Wolfgang Solfrank.
* Copyright (C) 1995, 1996 TooLs GmbH.
* 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 TooLs GmbH.
* 4. The name of TooLs GmbH may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``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 TOOLS GMBH 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: XX?c */
/* MBR partition table */
#define MBRSECTOR 0 /* MBR sector number */
#define MBRPARTOFF 446 /* Offset of MBR partition table */
#define NMBRPART 4 /* # of partitions in MBR */
#define MBRMAGICOFF 510 /* Offset of magic number */
#define MBRMAGIC 0xaa55 /* Actual magic number */
#define DOSMBR_SIGNATURE MBRMAGIC
struct mbr_partition {
unsigned char mbr_flag; /* default boot flag */
unsigned char mbr_shd; /* start head, IsN't Always Meaningful */
unsigned char mbr_ssect; /* start sector, INAM */
unsigned char mbr_scyl; /* start cylinder, INAM */
unsigned char mbr_type; /* partition type */
unsigned char mbr_ehd; /* end head, INAM */
unsigned char mbr_esect; /* end sector, INAM */
unsigned char mbr_ecyl; /* end cylinder, INAM */
unsigned long mbr_start; /* absolute start sector number */
unsigned long mbr_size; /* partition size in sectors */
};
/* Known partition types: */
#define MBR_EXTENDED 0x05 /* Extended partition */
#define MBR_NETBSD_LE 0xa5 /* NetBSD little endian partition */
#define MBR_NETBSD_BE 0xa6 /* NetBSD big endian partition */
#define MBR_NETBSD MBR_NETBSD_BE /* on this machine, we default to BE */
/* For compatibility reasons (mainly for fdisk): */
#define dos_partition mbr_partition
#define dp_flag mbr_flag
#define dp_shd mbr_shd
#define dp_ssect mbr_ssect
#define dp_scyl mbr_scyl
#define dp_typ mbr_type
#define dp_ehd mbr_ehd
#define dp_esect mbr_esect
#define dp_ecyl mbr_ecyl
#define dp_start mbr_start
#define dp_size mbr_size
#define DOSPARTOFF MBRPARTOFF
#define NDOSPART NMBRPART
#define DOSPTYP_EXTEND 0x05 /* Extended; contains sub-partitions */
#define DOSPTYP_386BSD MBR_NETBSD
#define DOSPTYP_OPENBSD 0xa6 /* OpenBSD partition type */
#define DOSACTIVE 0x80
struct cpu_disklabel {
int cd_start; /* Offset to NetBSD partition in blocks */
};
/* Isolate the relevant bits to get sector and cylinder. */
#define DPSECT(s) ((s) & 0x3f)
#define DPCYL(c, s) ((c) + (((s) & 0xc0) << 2))
#endif /* _MACHINE_DISKLABEL_H_ */
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