1 /* $NetBSD: dec_boot.h,v 1.7 2005/12/11 12:21:20 christos Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * Ralph Campbell. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 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 * 3. 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. 21 * 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 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 * 34 * @(#)dec_boot.h 8.1 (Berkeley) 6/10/93 35 * 36 * from: Header: /sprite/src/kernel/dev/RCS/devDiskLabel.h, 37 * v 9.4 90/03/01 12:22:36 jhh Exp SPRITE (Berkeley) 38 */ 39 40 #ifndef _DEV_DEC_DEC_BOOT_H_ 41 #define _DEV_DEC_DEC_BOOT_H_ 42 43 /* The following describes the ULTRIX partition tables. 44 */ 45 /* 46 * DEC_NUM_DISK_PARTS is the number of partitions that are recorded in 47 * the label information. The size of the padding in the Dec_DiskLabel 48 * type is dependent on this number... 49 */ 50 #define DEC_NUM_DISK_PARTS 8 51 52 /* 53 * A disk is divided into partitions and this type specifies where a 54 * partition starts and how many bytes it contains. 55 */ 56 typedef struct dec_disk_map { 57 int32_t num_blocks; /* Number of 512 byte blocks in partition. */ 58 int32_t start_block; /* Start of partition in blocks. */ 59 } dec_disk_map; 60 61 /* 62 * Label information on the 31st (DEC_LABEL_SECTOR) sector. 63 */ 64 typedef struct dec_disklabel { 65 u_int8_t pad0[440]; /* DIFFERENT from sprite!!! */ 66 int32_t magic; /* DEC_LABEL_MAGIC */ 67 int32_t is_partitioned; /* 1 if disk is partitioned. */ 68 dec_disk_map map[DEC_NUM_DISK_PARTS]; /* Indicates disk partitions. */ 69 } dec_disklabel; 70 71 #define DEC_LABEL_MAGIC 0x00032957 72 #define DEC_LABEL_SECTOR 31 73 74 #endif /* !_DEV_DEC_DEC_BOOT_H_ */ 75