NetBSD/distrib/utils/sysinst/mbr.h

89 lines
3.3 KiB
C

/* $NetBSD: mbr.h,v 1.8 1999/07/10 23:07:15 fvdl 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 */
void set_fdisk_geom __P((void)); /* edit incore BIOS geometry */
void disp_cur_geom __P((void));
int check_geom __P((void)); /* primitive geometry sanity-check */
void disp_cur_part __P((struct mbr_partition *, int, int));
int edit_mbr __P((struct mbr_partition *));
int partsoverlap __P((struct mbr_partition *, int, int));
/* from mbr.c */
int read_mbr __P((char *, char *, int));
int write_mbr __P((char *, char *, int, int));
int valid_mbr __P((char *));
int guess_biosgeom_from_mbr __P((char *, int *, int *, int *));
int md_bios_info __P((char *));
void set_bios_geom __P((int, int, int));
int otherpart __P((int));
int ourpart __P((int));
char *get_partname __P((int));