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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 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 #pragma ident "%Z%%M% %I% %E% SMI" 40 41 #ifdef __cplusplus 42 extern "C" { 43 #endif 44 45 /* alternate sector partition information table */ 46 struct alts_parttbl { 47 uint32_t alts_sanity; /* to validate correctness */ 48 uint32_t alts_version; /* version number */ 49 daddr32_t alts_map_base; /* disk offset of alts_partmap */ 50 uint32_t alts_map_len; /* byte length of alts_partmap */ 51 daddr32_t alts_ent_base; /* disk offset of alts_entry */ 52 uint32_t alts_ent_used; /* number of alternate entries used */ 53 daddr32_t alts_ent_end; /* disk offset of top of alts_entry */ 54 daddr32_t alts_resv_base; /* disk offset of alts_reserved */ 55 uint32_t alts_pad[5]; /* reserved fields */ 56 }; 57 58 /* alternate sector remap entry table */ 59 struct alts_ent { 60 daddr32_t bad_start; /* starting bad sector number */ 61 daddr32_t bad_end; /* ending bad sector number */ 62 daddr32_t good_start; /* starting alternate sector to use */ 63 }; 64 65 /* size of alternate partition table structure */ 66 #define ALTS_PARTTBL_SIZE sizeof (struct alts_parttbl) 67 /* size of alternate entry table structure */ 68 #define ALTS_ENT_SIZE sizeof (struct alts_ent) 69 70 /* definition for alternate sector partition sector map */ 71 #define ALTS_GOOD 0 /* good alternate sectors */ 72 #define ALTS_BAD 1 /* bad alternate sectors */ 73 74 /* definition for alternate sector partition id */ 75 #define ALTS_SANITY 0xaabbccdd /* magic number to validate alts_part */ 76 #define ALTS_VERSION1 0x01 /* version of alts_parttbl */ 77 78 #define ALTS_ENT_EMPTY -1 /* empty alternate entry */ 79 #define ALTS_MAP_UP 1 /* search forward with increasing sect# */ 80 #define ALTS_MAP_DOWN -1 /* search backward with decreasing sect# */ 81 82 #ifdef __cplusplus 83 } 84 #endif 85 86 #endif /* _SYS_DKTP_ALTSCTR_H */ 87