1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1990, 1991 UNIX System Laboratories, Inc. */ 28 /* Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T */ 29 /* All Rights Reserved */ 30 31 /* 32 * (c) Copyright INTERACTIVE Systems Corporation 1986, 1988, 1990 33 * All rights reserved. 34 */ 35 36 #ifndef _SYS_DKTP_ALTSCTR_H 37 #define _SYS_DKTP_ALTSCTR_H 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 /* alternate sector partition information table */ 44 struct alts_parttbl { 45 uint32_t alts_sanity; /* to validate correctness */ 46 uint32_t alts_version; /* version number */ 47 uint32_t alts_map_base; /* disk offset of alts_partmap */ 48 uint32_t alts_map_len; /* byte length of alts_partmap */ 49 uint32_t alts_ent_base; /* disk offset of alts_entry */ 50 uint32_t alts_ent_used; /* number of alternate entries used */ 51 uint32_t alts_ent_end; /* disk offset of top of alts_entry */ 52 uint32_t alts_resv_base; /* disk offset of alts_reserved */ 53 uint32_t alts_pad[5]; /* reserved fields */ 54 }; 55 56 /* alternate sector remap entry table */ 57 struct alts_ent { 58 uint32_t bad_start; /* starting bad sector number */ 59 uint32_t bad_end; /* ending bad sector number */ 60 uint32_t good_start; /* starting alternate sector to use */ 61 }; 62 63 /* size of alternate partition table structure */ 64 #define ALTS_PARTTBL_SIZE sizeof (struct alts_parttbl) 65 /* size of alternate entry table structure */ 66 #define ALTS_ENT_SIZE sizeof (struct alts_ent) 67 68 /* definition for alternate sector partition sector map */ 69 #define ALTS_GOOD 0 /* good alternate sectors */ 70 #define ALTS_BAD 1 /* bad alternate sectors */ 71 72 /* definition for alternate sector partition id */ 73 #define ALTS_SANITY 0xaabbccdd /* magic number to validate alts_part */ 74 #define ALTS_VERSION1 0x01 /* version of alts_parttbl */ 75 76 #define ALTS_ENT_EMPTY -1 /* empty alternate entry */ 77 #define ALTS_MAP_UP 1 /* search forward with increasing sect# */ 78 #define ALTS_MAP_DOWN -1 /* search backward with decreasing sect# */ 79 80 #ifdef __cplusplus 81 } 82 #endif 83 84 #endif /* _SYS_DKTP_ALTSCTR_H */ 85