Annotation of sys/dev/sun/disklabel.h, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: disklabel.h,v 1.4 2007/05/31 00:30:10 deraadt 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: /* partition info */
! 51: struct sun_dkpart {
! 52: int sdkp_cyloffset; /* starting cylinder */
! 53: int sdkp_nsectors; /* number of sectors */
! 54: };
! 55:
! 56: #define SUNXPART 8
! 57: #define SL_XPMAG (0x199d1fe2+SUNXPART)
! 58: #define SL_XPMAGTYP (0x199d1fe2+SUNXPART+1) /* contains types */
! 59:
! 60: struct sun_disklabel { /* total size = 512 bytes */
! 61: char sl_text[128];
! 62: u_int sl_xpsum; /* additive cksum, [xl_xpmag,sl_xx1) */
! 63: u_int sl_xpmag; /* "extended" magic number */
! 64: struct sun_dkpart sl_xpart[SUNXPART]; /* "extended" partitions, i through p */
! 65: u_char sl_types[MAXPARTITIONS];
! 66: u_int8_t sl_fragblock[MAXPARTITIONS];
! 67: u_int16_t sl_cpg[MAXPARTITIONS];
! 68: char sl_xxx1[292 - sizeof(u_int) - sizeof(u_int) -
! 69: (sizeof(struct sun_dkpart) * SUNXPART) -
! 70: sizeof(u_char) * MAXPARTITIONS -
! 71: sizeof(u_int8_t) * MAXPARTITIONS -
! 72: sizeof(u_int16_t) * MAXPARTITIONS];
! 73: u_short sl_rpm; /* rotational speed */
! 74: u_short sl_pcylinders; /* number of physical cyls */
! 75: #define sl_pcyl sl_pcylinders /* XXX: old sun3 */
! 76: u_short sl_sparespercyl; /* spare sectors per cylinder */
! 77: char sl_xxx3[4];
! 78: u_short sl_interleave; /* interleave factor */
! 79: u_short sl_ncylinders; /* data cylinders */
! 80: u_short sl_acylinders; /* alternate cylinders */
! 81: u_short sl_ntracks; /* tracks per cylinder */
! 82: u_short sl_nsectors; /* sectors per track */
! 83: char sl_xxx4[4];
! 84: struct sun_dkpart sl_part[8]; /* partition layout */
! 85: u_short sl_magic; /* == SUN_DKMAGIC */
! 86: u_short sl_cksum; /* xor checksum of all shorts */
! 87: };
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