NetBSD/distrib/utils/sysinst/mbr.h

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/* $NetBSD: mbr.h,v 1.9 2000/12/22 10:12:13 mrg Exp $ */
/*
* Copyright 1997, 1988 Piermont Information Systems Inc.
* All rights reserved.
*
* Written by Philip A. Nelson for Piermont Information Systems Inc.
*
* 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 for the NetBSD Project by
* Piermont Information Systems Inc.
* 4. The name of Piermont Information Systems Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY PIERMONT INFORMATION SYSTEMS INC. ``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 PIERMONT INFORMATION SYSTEMS INC. 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.
*
*/
/*
* mbr.h -- definitions for reading, writing and editing DOS MBRs.
* Use by including from md.h on ports which use MBRs (i386, powerpc, arc)
* naming convention: dlxxxx => NetBSD disklabel, bxxxx => bios
*/
/* constants and defines */
#include <sys/disklabel_mbr.h>
/*
* XXX
*/
#define MBR_SECSIZE 512
#define MBR_PUT_LSCYL(c) ((c) & 0xff)
#define MBR_PUT_MSCYLANDSEC(c,s) (((s) & 0x3f) | (((c) >> 2) & 0xc0))
/* incore fdisk (mbr, bios) geometry */
EXTERN int bcyl, bhead, bsec, bsize, bcylsize;
/* incore copy of MBR partitions */
EXTERN struct mbr_partition *part;
EXTERN int activepart;
EXTERN int bsdpart; /* partition in use by NetBSD */
EXTERN int usefull; /* on install, clobber entire disk */
extern char mbr[];
/* from mbr.c */
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void set_fdisk_geom (void); /* edit incore BIOS geometry */
void disp_cur_geom (void);
int check_geom (void); /* primitive geometry sanity-check */
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void disp_cur_part (struct mbr_partition *, int, int);
int edit_mbr (struct mbr_partition *);
int partsoverlap (struct mbr_partition *, int, int);
/* from mbr.c */
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int read_mbr (char *, char *, int);
int write_mbr (char *, char *, int, int);
int valid_mbr (char *);
int guess_biosgeom_from_mbr (char *, int *, int *, int *);
int md_bios_info (char *);
void set_bios_geom (int, int, int);
int otherpart (int);
int ourpart (int);
char *get_partname (int);