124 lines
4.7 KiB
C
124 lines
4.7 KiB
C
/*-
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* Copyright (c) 1992, 1993
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* The Regents of the University of California. All rights reserved.
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* Copyright (c) 2004,2005 Joerg Wunsch
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*
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* This software was developed by the Computer Systems Engineering group
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* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
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* contributed to Berkeley.
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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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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
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* $NetBSD: disklabel.h,v 1.2 1998/08/22 14:55:28 mrg Exp $
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*
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* $FreeBSD$
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*/
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#ifndef _SYS_SUN_DISKLABEL_H_
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#define _SYS_SUN_DISKLABEL_H_
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/*
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* SunOS/Solaris disk label layout (partial).
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*
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* Suns disk label format contains a lot of historical baggage which we
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* ignore entirely. The structure below contains the relevant bits and the
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* _enc/_dec functions encode/decode only these fields.
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*/
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#define SUN_DKMAGIC 55998
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#define SUN_NPART 8
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#define SUN_RAWPART 2
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#define SUN_SIZE 512
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#define SUN_VTOC_VERSION 1
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#define SUN_VTOC_SANE 0x600DDEEE /* SVR4-compatible VTOC is "sane". */
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#define SUN_VOLNAME_LEN 8
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/*
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* XXX: I am actually not sure if this should be "16 sectors" or "8192 bytes".
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* XXX: Considering that Sun went to the effort of getting 512 byte compatible
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* XXX: CDROM drives produced my guess is that Sun computers stand little or
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* XXX: even no chance of running, much less booting on !=512 byte media.
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* XXX: Define this is in terms of bytes since that is easier for us.
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*/
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#define SUN_BOOTSIZE 8192
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/* partition info */
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struct sun_dkpart {
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u_int32_t sdkp_cyloffset; /* starting cylinder */
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u_int32_t sdkp_nsectors; /* number of sectors */
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};
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struct sun_vtoc_info {
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u_int16_t svtoc_tag; /* partition tag */
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u_int16_t svtoc_flag; /* partition flags */
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};
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/* known partition tag values */
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#define VTOC_UNASSIGNED 0x00
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#define VTOC_BOOT 0x01
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#define VTOC_ROOT 0x02
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#define VTOC_SWAP 0x03
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#define VTOC_USR 0x04
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#define VTOC_BACKUP 0x05 /* "c" partition, covers entire disk */
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#define VTOC_STAND 0x06
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#define VTOC_VAR 0x07
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#define VTOC_HOME 0x08
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#define VTOC_ALTSCTR 0x09 /* alternate sector partition */
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#define VTOC_CACHE 0x0a /* Solaris cachefs partition */
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#define VTOC_VXVM_PUB 0x0e /* VxVM public region */
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#define VTOC_VXVM_PRIV 0x0f /* VxVM private region */
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/* VTOC partition flags */
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#define VTOC_UNMNT 0x01 /* unmountable partition */
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#define VTOC_RONLY 0x10 /* partition is read/only */
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struct sun_disklabel {
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char sl_text[128];
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/* SVR4 VTOC information */
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u_int32_t sl_vtoc_vers; /* == SUN_VTOC_VERSION */
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char sl_vtoc_volname[SUN_VOLNAME_LEN];
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u_int16_t sl_vtoc_nparts; /* == SUN_NPART */
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struct sun_vtoc_info sl_vtoc_map[SUN_NPART]; /* partition tag/flag */
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u_int32_t sl_vtoc_sane; /* == SUN_VTOC_SANE */
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/* Sun label information */
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u_int16_t sl_rpm; /* rotational speed */
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u_int16_t sl_pcylinders; /* number of physical cyls */
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u_int16_t sl_sparespercyl; /* spare sectors per cylinder */
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u_int16_t sl_interleave; /* interleave factor */
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u_int16_t sl_ncylinders; /* data cylinders */
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u_int16_t sl_acylinders; /* alternate cylinders */
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u_int16_t sl_ntracks; /* tracks per cylinder */
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u_int16_t sl_nsectors; /* sectors per track */
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struct sun_dkpart sl_part[SUN_NPART]; /* partition layout */
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u_int16_t sl_magic; /* == SUN_DKMAGIC */
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};
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int sunlabel_dec(void const *pp, struct sun_disklabel *sl);
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void sunlabel_enc(void *pp, struct sun_disklabel *sl);
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#endif /* _SYS_SUN_DISKLABEL_H_ */
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