/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved. * * This file contains Original Code and/or Modifications of Original Code * as defined in and that are subject to the Apple Public Source License * Version 2.0 (the 'License'). You may not use this file except in * compliance with the License. Please obtain a copy of the License at * http://www.opensource.apple.com/apsl/ and read it before using this * file. * * The Original Code and all software distributed under the License are * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. * Please see the License for the specific language governing rights and * limitations under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* $FreeBSD: src/sys/msdosfs/bootsect.h,v 1.7 1999/08/28 00:48:06 peter Exp $ */ /* $NetBSD: bootsect.h,v 1.9 1997/11/17 15:36:17 ws Exp $ */ /* * Written by Paul Popelka (paulp@uts.amdahl.com) * * You can do anything you want with this software, just don't say you wrote * it, and don't remove this notice. * * This software is provided "as is". * * The author supplies this software to be publicly redistributed on the * understanding that the author is not responsible for the correct * functioning of this software in any circumstances and is not liable for * any damages caused by this software. * * October 1992 */ #include <sys/types.h> /* * Format of a boot sector. This is the first sector on a DOS floppy disk * or the fist sector of a partition on a hard disk. But, it is not the * first sector of a partitioned hard disk. */ struct bootsector33 { u_int8_t bsJump[3]; /* jump inst E9xxxx or EBxx90 */ int8_t bsOemName[8]; /* OEM name and version */ int8_t bsBPB[19]; /* BIOS parameter block */ int8_t bsDriveNumber; /* drive number (0x80) */ int8_t bsBootCode[479]; /* pad so struct is 512b */ u_int8_t bsBootSectSig0; u_int8_t bsBootSectSig1; #define BOOTSIG0 0x55 #define BOOTSIG1 0xaa }; struct extboot { int8_t exDriveNumber; /* drive number (0x80) */ int8_t exReserved1; /* reserved */ int8_t exBootSignature; /* ext. boot signature (0x29) */ #define EXBOOTSIG 0x29 int8_t exVolumeID[4]; /* volume ID number */ int8_t exVolumeLabel[11]; /* volume label */ int8_t exFileSysType[8]; /* fs type (FAT12 or FAT16) */ }; struct bootsector50 { u_int8_t bsJump[3]; /* jump inst E9xxxx or EBxx90 */ int8_t bsOemName[8]; /* OEM name and version */ int8_t bsBPB[25]; /* BIOS parameter block */ int8_t bsExt[26]; /* Bootsector Extension */ int8_t bsBootCode[448]; /* pad so structure is 512b */ u_int8_t bsBootSectSig0; u_int8_t bsBootSectSig1; #define BOOTSIG0 0x55 #define BOOTSIG1 0xaa }; struct bootsector710 { u_int8_t bsJump[3]; /* jump inst E9xxxx or EBxx90 */ int8_t bsOEMName[8]; /* OEM name and version */ int8_t bsBPB[53]; /* BIOS parameter block */ int8_t bsExt[26]; /* Bootsector Extension */ int8_t bsBootCode[420]; /* pad so structure is 512b */ u_int8_t bsBootSectSig0; u_int8_t bsBootSectSig1; #define BOOTSIG0 0x55 #define BOOTSIG1 0xaa }; union bootsector { struct bootsector33 bs33; struct bootsector50 bs50; struct bootsector710 bs710; };