| 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_ */ |