2 * Copyright (c) 1992, 1993
3 * The Regents of the University of California. All rights reserved.
4 * Copyright (c) 2004,2005 Joerg Wunsch
6 * This software was developed by the Computer Systems Engineering group
7 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
8 * contributed to Berkeley.
10 * Redistribution and use in source and binary forms, with or without
11 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in the
17 * documentation and/or other materials provided with the distribution.
18 * 4. Neither the name of the University nor the names of its contributors
19 * may be used to endorse or promote products derived from this software
20 * without specific prior written permission.
22 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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34 * @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
35 * $NetBSD: disklabel.h,v 1.2 1998/08/22 14:55:28 mrg Exp $
40 #ifndef _SYS_SUN_DISKLABEL_H_
41 #define _SYS_SUN_DISKLABEL_H_
44 * SunOS/Solaris disk label layout (partial).
46 * Suns disk label format contains a lot of historical baggage which we
47 * ignore entirely. The structure below contains the relevant bits and the
48 * _enc/_dec functions encode/decode only these fields.
51 #define SUN_DKMAGIC 55998
55 #define SUN_VTOC_VERSION 1
56 #define SUN_VTOC_SANE 0x600DDEEE /* SVR4-compatible VTOC is "sane". */
57 #define SUN_VOLNAME_LEN 8
59 * XXX: I am actually not sure if this should be "16 sectors" or "8192 bytes".
60 * XXX: Considering that Sun went to the effort of getting 512 byte compatible
61 * XXX: CDROM drives produced my guess is that Sun computers stand little or
62 * XXX: even no chance of running, much less booting on !=512 byte media.
63 * XXX: Define this is in terms of bytes since that is easier for us.
65 #define SUN_BOOTSIZE 8192
69 u_int32_t sdkp_cyloffset; /* starting cylinder */
70 u_int32_t sdkp_nsectors; /* number of sectors */
73 struct sun_vtoc_info {
74 u_int16_t svtoc_tag; /* partition tag */
75 u_int16_t svtoc_flag; /* partition flags */
78 /* known partition tag values */
79 #define VTOC_UNASSIGNED 0x00
80 #define VTOC_BOOT 0x01
81 #define VTOC_ROOT 0x02
82 #define VTOC_SWAP 0x03
84 #define VTOC_BACKUP 0x05 /* "c" partition, covers entire disk */
85 #define VTOC_STAND 0x06
87 #define VTOC_HOME 0x08
88 #define VTOC_ALTSCTR 0x09 /* alternate sector partition */
89 #define VTOC_CACHE 0x0a /* Solaris cachefs partition */
90 #define VTOC_VXVM_PUB 0x0e /* VxVM public region */
91 #define VTOC_VXVM_PRIV 0x0f /* VxVM private region */
93 /* VTOC partition flags */
94 #define VTOC_UNMNT 0x01 /* unmountable partition */
95 #define VTOC_RONLY 0x10 /* partition is read/only */
97 struct sun_disklabel {
100 /* SVR4 VTOC information */
101 u_int32_t sl_vtoc_vers; /* == SUN_VTOC_VERSION */
102 char sl_vtoc_volname[SUN_VOLNAME_LEN];
103 u_int16_t sl_vtoc_nparts; /* == SUN_NPART */
104 struct sun_vtoc_info sl_vtoc_map[SUN_NPART]; /* partition tag/flag */
105 u_int32_t sl_vtoc_sane; /* == SUN_VTOC_SANE */
107 /* Sun label information */
108 u_int16_t sl_rpm; /* rotational speed */
109 u_int16_t sl_pcylinders; /* number of physical cyls */
110 u_int16_t sl_sparespercyl; /* spare sectors per cylinder */
111 u_int16_t sl_interleave; /* interleave factor */
112 u_int16_t sl_ncylinders; /* data cylinders */
113 u_int16_t sl_acylinders; /* alternate cylinders */
114 u_int16_t sl_ntracks; /* tracks per cylinder */
115 u_int16_t sl_nsectors; /* sectors per track */
116 struct sun_dkpart sl_part[SUN_NPART]; /* partition layout */
117 u_int16_t sl_magic; /* == SUN_DKMAGIC */
120 int sunlabel_dec(void const *pp, struct sun_disklabel *sl);
121 void sunlabel_enc(void *pp, struct sun_disklabel *sl);
123 #endif /* _SYS_SUN_DISKLABEL_H_ */