1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * Copyright (c) 2004,2005 Joerg Wunsch 7 * 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. 11 * 12 * Redistribution and use in source and binary forms, with or without 13 * modification, are permitted provided that the following conditions 14 * are met: 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 18 * notice, this list of conditions and the following disclaimer in the 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. 23 * 24 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 28 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 29 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 30 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 31 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 32 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 33 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34 * SUCH DAMAGE. 35 * 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 $ 38 * 39 * $FreeBSD$ 40 */ 41 42 #ifndef _SYS_SUN_DISKLABEL_H_ 43 #define _SYS_SUN_DISKLABEL_H_ 44 45 /* 46 * SunOS/Solaris disk label layout (partial). 47 * 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. 51 */ 52 53 #define SUN_DKMAGIC 55998 54 #define SUN_NPART 8 55 #define SUN_RAWPART 2 56 #define SUN_SIZE 512 57 #define SUN_VTOC_VERSION 1 58 #define SUN_VTOC_SANE 0x600DDEEE /* SVR4-compatible VTOC is "sane". */ 59 #define SUN_VOLNAME_LEN 8 60 /* 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. 66 */ 67 #define SUN_BOOTSIZE 8192 68 69 /* partition info */ 70 struct sun_dkpart { 71 u_int32_t sdkp_cyloffset; /* starting cylinder */ 72 u_int32_t sdkp_nsectors; /* number of sectors */ 73 }; 74 75 struct sun_vtoc_info { 76 u_int16_t svtoc_tag; /* partition tag */ 77 u_int16_t svtoc_flag; /* partition flags */ 78 }; 79 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 85 #define VTOC_USR 0x04 86 #define VTOC_BACKUP 0x05 /* "c" partition, covers entire disk */ 87 #define VTOC_STAND 0x06 88 #define VTOC_VAR 0x07 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 */ 94 95 /* VTOC partition flags */ 96 #define VTOC_UNMNT 0x01 /* unmountable partition */ 97 #define VTOC_RONLY 0x10 /* partition is read/only */ 98 99 struct sun_disklabel { 100 char sl_text[128]; 101 102 /* 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 */ 108 109 /* 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 */ 120 }; 121 122 int sunlabel_dec(void const *pp, struct sun_disklabel *sl); 123 void sunlabel_enc(void *pp, struct sun_disklabel *sl); 124 125 #endif /* _SYS_SUN_DISKLABEL_H_ */ 126