2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 1992, 1993
5 * The Regents of the University of California. All rights reserved.
6 * Copyright (c) 2004,2005 Joerg Wunsch
8 * This software was developed by the Computer Systems Engineering group
9 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
10 * contributed to Berkeley.
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13 * modification, are permitted provided that the following conditions
15 * 1. Redistributions of source code must retain the above copyright
16 * notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
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19 * documentation and/or other materials provided with the distribution.
20 * 3. Neither the name of the University nor the names of its contributors
21 * may be used to endorse or promote products derived from this software
22 * without specific prior written permission.
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33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
36 * @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93
37 * $NetBSD: disklabel.h,v 1.2 1998/08/22 14:55:28 mrg Exp $
42 #ifndef _SYS_SUN_DISKLABEL_H_
43 #define _SYS_SUN_DISKLABEL_H_
46 * SunOS/Solaris disk label layout (partial).
48 * Suns disk label format contains a lot of historical baggage which we
49 * ignore entirely. The structure below contains the relevant bits and the
50 * _enc/_dec functions encode/decode only these fields.
53 #define SUN_DKMAGIC 55998
57 #define SUN_VTOC_VERSION 1
58 #define SUN_VTOC_SANE 0x600DDEEE /* SVR4-compatible VTOC is "sane". */
59 #define SUN_VOLNAME_LEN 8
61 * XXX: I am actually not sure if this should be "16 sectors" or "8192 bytes".
62 * XXX: Considering that Sun went to the effort of getting 512 byte compatible
63 * XXX: CDROM drives produced my guess is that Sun computers stand little or
64 * XXX: even no chance of running, much less booting on !=512 byte media.
65 * XXX: Define this is in terms of bytes since that is easier for us.
67 #define SUN_BOOTSIZE 8192
71 u_int32_t sdkp_cyloffset; /* starting cylinder */
72 u_int32_t sdkp_nsectors; /* number of sectors */
75 struct sun_vtoc_info {
76 u_int16_t svtoc_tag; /* partition tag */
77 u_int16_t svtoc_flag; /* partition flags */
80 /* known partition tag values */
81 #define VTOC_UNASSIGNED 0x00
82 #define VTOC_BOOT 0x01
83 #define VTOC_ROOT 0x02
84 #define VTOC_SWAP 0x03
86 #define VTOC_BACKUP 0x05 /* "c" partition, covers entire disk */
87 #define VTOC_STAND 0x06
89 #define VTOC_HOME 0x08
90 #define VTOC_ALTSCTR 0x09 /* alternate sector partition */
91 #define VTOC_CACHE 0x0a /* Solaris cachefs partition */
92 #define VTOC_VXVM_PUB 0x0e /* VxVM public region */
93 #define VTOC_VXVM_PRIV 0x0f /* VxVM private region */
95 /* VTOC partition flags */
96 #define VTOC_UNMNT 0x01 /* unmountable partition */
97 #define VTOC_RONLY 0x10 /* partition is read/only */
99 struct sun_disklabel {
102 /* SVR4 VTOC information */
103 u_int32_t sl_vtoc_vers; /* == SUN_VTOC_VERSION */
104 char sl_vtoc_volname[SUN_VOLNAME_LEN];
105 u_int16_t sl_vtoc_nparts; /* == SUN_NPART */
106 struct sun_vtoc_info sl_vtoc_map[SUN_NPART]; /* partition tag/flag */
107 u_int32_t sl_vtoc_sane; /* == SUN_VTOC_SANE */
109 /* Sun label information */
110 u_int16_t sl_rpm; /* rotational speed */
111 u_int16_t sl_pcylinders; /* number of physical cyls */
112 u_int16_t sl_sparespercyl; /* spare sectors per cylinder */
113 u_int16_t sl_interleave; /* interleave factor */
114 u_int16_t sl_ncylinders; /* data cylinders */
115 u_int16_t sl_acylinders; /* alternate cylinders */
116 u_int16_t sl_ntracks; /* tracks per cylinder */
117 u_int16_t sl_nsectors; /* sectors per track */
118 struct sun_dkpart sl_part[SUN_NPART]; /* partition layout */
119 u_int16_t sl_magic; /* == SUN_DKMAGIC */
122 int sunlabel_dec(void const *pp, struct sun_disklabel *sl);
123 void sunlabel_enc(void *pp, struct sun_disklabel *sl);
125 #endif /* _SYS_SUN_DISKLABEL_H_ */