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/* $OpenBSD: disklabel.h,v 1.8 2010/04/25 06:15:17 deraadt Exp $ */
/* $NetBSD: disklabel.h,v 1.2 1998/08/22 14:55:28 mrg Exp $ */
/*
* Copyright (c) 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* This software was developed by the Computer Systems Engineering group
* at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
* contributed to Berkeley.
*
* All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the University of
* California, Lawrence Berkeley Laboratory.
*
* 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. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS OR CONTRIBUTORS 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.
*
* @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
*/
/*
* SunOS disk label layout (only relevant portions discovered here).
* This describes the format typically found on SPARC systems, but not
* that usually seen on SunOS/x86 and SunOS/amd64 systems.
*/
#define SUN_DKMAGIC 55998
/* partition info */
struct sun_dkpart {
u_int sdkp_cyloffset; /* starting cylinder */
u_int sdkp_nsectors; /* number of sectors */
};
/* partition types */
struct sun_partinfo {
u_short spi_tag; /* filesystem type */
u_short spi_flag; /* flags */
};
/* some spi_tag values */
#define SPTAG_EMPTY 0x00
#define SPTAG_BOOT 0x01
#define SPTAG_SUNOS_ROOT 0x02
#define SPTAG_SUNOS_SWAP 0x03
#define SPTAG_SUNOS_USR 0x04
#define SPTAG_WHOLE_DISK 0x05
#define SPTAG_SUNOS_STAND 0x06
#define SPTAG_SUNOS_VAR 0x07
#define SPTAG_SUNOS_HOME 0x08
#define SPTAG_LINUX_SWAP 0x82
#define SPTAG_LINUX_EXT2 0x83
#define SUNXPART 8
#define SL_XPMAG (0x199d1fe2+SUNXPART)
#define SL_XPMAGTYP (0x199d1fe2+SUNXPART+1) /* contains types */
struct sun_disklabel { /* total size = 512 bytes */
char sl_text[128];
u_int sl_xpsum; /* additive cksum, [xl_xpmag,sl_xx1) */
u_int sl_xpmag; /* "extended" magic number */
struct sun_dkpart sl_xpart[SUNXPART]; /* "extended" partitions i..p */
u_char sl_types[MAXPARTITIONS];
u_int8_t sl_fragblock[MAXPARTITIONS];
u_int16_t sl_cpg[MAXPARTITIONS];
u_char sl_uid[8]; /* extension: unique disk label */
char sl_xxx1[292 - sizeof(u_int) - sizeof(u_int) -
(sizeof(struct sun_dkpart) * SUNXPART) -
sizeof(u_char) * MAXPARTITIONS -
sizeof(u_int8_t) * MAXPARTITIONS -
sizeof(u_int16_t) * MAXPARTITIONS -
sizeof(u_int64_t)];
u_short sl_rpm; /* rotational speed */
u_short sl_pcylinders; /* number of physical cyls */
#define sl_pcyl sl_pcylinders /* XXX: old sun3 */
u_short sl_sparespercyl; /* spare sectors per cylinder */
char sl_xxx3[4];
u_short sl_interleave; /* interleave factor */
u_short sl_ncylinders; /* data cylinders */
u_short sl_acylinders; /* alternate cylinders */
u_short sl_ntracks; /* tracks per cylinder */
u_short sl_nsectors; /* sectors per track */
char sl_xxx4[4];
struct sun_dkpart sl_part[8]; /* partition layout */
u_short sl_magic; /* == SUN_DKMAGIC */
u_short sl_cksum; /* xor checksum of all shorts */
};
/* Sun standard fields, also used on Linux. */
struct sun_preamble {
char sl_text[128];
u_int sl_version; /* label version */
char sl_volume[8]; /* short volume name */
u_short sl_nparts; /* partition count */
struct sun_partinfo sl_part[8];
};
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