60 lines
2.7 KiB
C
60 lines
2.7 KiB
C
/* $NetBSD: disklabel.h,v 1.4 1995/11/30 00:58:03 jtc Exp $ */
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/*
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* Copyright (c) 1995 Leo Weppelman.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Leo Weppelman.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _MACHINE_DISKLABEL_H_
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#define _MACHINE_DISKLABEL_H_
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/*
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* On a volume, exclusively used by NetBSD, the boot block starts at
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* sector 0. To allow shared use of a volume between two or more OS's
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* the vendor specific AHDI format is supported. In this case the boot
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* block is located at the start of an AHDI partition. In any case the
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* size of the boot block is 8KB, the disk label is at offset 7KB.
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*/
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#define LABELSECTOR 0 /* `natural' start of boot block */
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#define LABELOFFSET (7 * 1024) /* offset of disklabel in bytes,
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relative to start of boot block */
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#define MAXPARTITIONS 16
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#define RAW_PART 2 /* xx?c is raw partition */
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#define MAX_TOS_ROOTS 61 /* max. # of auxilary root sectors */
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struct cpu_disklabel {
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u_int32_t cd_bblock; /* start of NetBSD boot block */
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#define NO_BOOT_BLOCK ((u_int32_t) -1)
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u_int32_t cd_bslst; /* start of TOS bad sector list */
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u_int32_t cd_bslsize; /* size of TOS bad sector list */
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u_int32_t cd_roots[MAX_TOS_ROOTS]; /* TOS root sectors */
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};
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#endif /* _MACHINE_DISKLABEL_H_ */
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