1 /* $OpenBSD: disklabel.h,v 1.3 2003/06/02 23:28:04 millert Exp $ */ 2 /* $NetBSD: disklabel.h,v 1.2 1998/08/22 14:55:28 mrg Exp $ */ 3 4 /* 5 * Copyright (c) 1992, 1993 6 * The Regents of the University of California. All rights reserved. 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 * All advertising materials mentioning features or use of this software 13 * must display the following acknowledgement: 14 * This product includes software developed by the University of 15 * California, Lawrence Berkeley Laboratory. 16 * 17 * Redistribution and use in source and binary forms, with or without 18 * modification, are permitted provided that the following conditions 19 * are met: 20 * 1. Redistributions of source code must retain the above copyright 21 * notice, this list of conditions and the following disclaimer. 22 * 2. Redistributions in binary form must reproduce the above copyright 23 * notice, this list of conditions and the following disclaimer in the 24 * documentation and/or other materials provided with the distribution. 25 * 3. Neither the name of the University nor the names of its contributors 26 * may be used to endorse or promote products derived from this software 27 * without specific prior written permission. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 30 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 33 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 37 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 38 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 39 * SUCH DAMAGE. 40 * 41 * @(#)sun_disklabel.h 8.1 (Berkeley) 6/11/93 42 */ 43 44 /* 45 * SunOS disk label layout (only relevant portions discovered here). 46 */ 47 48 #define SUN_DKMAGIC 55998 49 50 /* These are the guys that Sun's dkinfo needs... */ 51 #define DKIOCGGEOM _IOR('d', 2, struct sun_dkgeom) /* geometry info */ 52 #define DKIOCINFO _IOR('d', 8, struct sun_dkctlr) /* controller info */ 53 #define DKIOCGPART _IOR('d', 4, struct sun_dkpart) /* partition info */ 54 55 /* geometry info */ 56 struct sun_dkgeom { 57 u_short sdkc_ncylinders; /* data cylinders */ 58 u_short sdkc_acylinders; /* alternate cylinders */ 59 u_short sdkc_xxx1; 60 u_short sdkc_ntracks; /* tracks per cylinder */ 61 u_short sdkc_xxx2; 62 u_short sdkc_nsectors; /* sectors per track */ 63 u_short sdkc_interleave; /* interleave factor */ 64 u_short sdkc_xxx3; 65 u_short sdkc_xxx4; 66 u_short sdkc_sparespercyl; /* spare sectors per cylinder */ 67 u_short sdkc_rpm; /* rotational speed */ 68 u_short sdkc_pcylinders; /* physical cylinders */ 69 u_short sdkc_xxx5[7]; 70 }; 71 72 /* controller info */ 73 struct sun_dkctlr { 74 int sdkc_addr; /* controller address */ 75 short sdkc_unit; /* unit (slave) address */ 76 short sdkc_type; /* controller type */ 77 short sdkc_flags; /* flags */ 78 }; 79 80 /* partition info */ 81 struct sun_dkpart { 82 int sdkp_cyloffset; /* starting cylinder */ 83 int sdkp_nsectors; /* number of sectors */ 84 }; 85 86 #define SUNXPART 8 87 #define SL_XPMAG (0x199d1fe2+SUNXPART) 88 89 struct sun_disklabel { /* total size = 512 bytes */ 90 char sl_text[128]; 91 u_int sl_xpsum; /* additive cksum, [xl_xpmag,sl_xx1) */ 92 u_int sl_xpmag; /* "extended" magic number */ 93 struct sun_dkpart sl_xpart[SUNXPART]; /* "extended" partitions, i through p */ 94 char sl_xxx1[292-8-(8*SUNXPART)]; /* [292] include sl_x* */ 95 u_short sl_rpm; /* rotational speed */ 96 u_short sl_pcylinders; /* number of physical cyls */ 97 #define sl_pcyl sl_pcylinders /* XXX: old sun3 */ 98 u_short sl_sparespercyl; /* spare sectors per cylinder */ 99 char sl_xxx3[4]; 100 u_short sl_interleave; /* interleave factor */ 101 u_short sl_ncylinders; /* data cylinders */ 102 u_short sl_acylinders; /* alternate cylinders */ 103 u_short sl_ntracks; /* tracks per cylinder */ 104 u_short sl_nsectors; /* sectors per track */ 105 char sl_xxx4[4]; 106 struct sun_dkpart sl_part[8]; /* partition layout */ 107 u_short sl_magic; /* == SUN_DKMAGIC */ 108 u_short sl_cksum; /* xor checksum of all shorts */ 109 }; 110 111 #define SUN_LABELOFFSET 128 /* XXX we don't use this */ 112