98 lines
3.8 KiB
C
98 lines
3.8 KiB
C
/* $NetBSD: disklabel.h,v 1.2 1997/04/16 22:55:10 thorpej 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 */
|
|
|
|
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 0xa5 /* NetBSD partition */
|
|
|
|
/* 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_386BSD MBR_NETBSD
|
|
|
|
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))
|
|
|
|
#ifdef _KERNEL
|
|
struct disklabel;
|
|
int bounds_check_with_label __P((struct buf *bp, struct disklabel *lp, int wlabel));
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _MACHINE_DISKLABEL_H_ */
|