1 /*- 2 * Copyright (c) 1987, 1988, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. Neither the name of the University nor the names of its contributors 14 * may be used to endorse or promote products derived from this software 15 * without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 #ifndef _SYS_DISK_MBR_H_ 31 #define _SYS_DISK_MBR_H_ 32 33 #include <sys/types.h> 34 35 #define DOSBBSECTOR 0 /* DOS boot block relative sector number */ 36 #define DOSDSNOFF 440 /* WinNT/2K/XP Drive Serial Number offset */ 37 #define DOSPARTOFF 446 38 #define DOSPARTSIZE 16 39 #define NDOSPART 4 40 #define NEXTDOSPART 32 41 #define DOSMAGICOFFSET 510 42 #define DOSMAGIC 0xAA55 43 44 #define DOSPTYP_EXT 0x05 /* DOS extended partition */ 45 #define DOSPTYP_FAT16 0x06 /* FAT16 partition */ 46 #define DOSPTYP_NTFS 0x07 /* NTFS partition */ 47 #define DOSPTYP_FAT32 0x0b /* FAT32 partition */ 48 #define DOSPTYP_FAT32LBA 0x0c /* FAT32 with LBA partition */ 49 #define DOSPTYP_EXTLBA 0x0f /* DOS extended partition */ 50 #define DOSPTYP_PPCBOOT 0x41 /* PReP/CHRP boot partition */ 51 #define DOSPTYP_LDM 0x42 /* Win2k dynamic extended partition */ 52 #define DOSPTYP_DFLYBSD 0x6c /* DragonFlyBSD partition type */ 53 #define DOSPTYP_LINSWP 0x82 /* Linux swap partition */ 54 #define DOSPTYP_LINUX 0x83 /* Linux partition */ 55 #define DOSPTYP_LINLVM 0x8e /* Linux LVM partition */ 56 #define DOSPTYP_386BSD 0xa5 /* 386BSD partition type */ 57 #define DOSPTYP_APPLE_UFS 0xa8 /* Apple Mac OS X boot */ 58 #define DOSPTYP_APPLE_BOOT 0xab /* Apple Mac OS X UFS */ 59 #define DOSPTYP_HFS 0xaf /* HFS/HFS+ partition type */ 60 #define DOSPTYP_PMBR 0xee /* GPT Protective MBR */ 61 #define DOSPTYP_EFI 0xef /* EFI FAT parition */ 62 #define DOSPTYP_VMFS 0xfb /* VMware VMFS partition */ 63 #define DOSPTYP_VMKDIAG 0xfc /* VMware vmkDiagnostic partition */ 64 #define DOSPTYP_LINRAID 0xfd /* Linux raid partition */ 65 66 struct dos_partition { 67 unsigned char dp_flag; /* bootstrap flags */ 68 unsigned char dp_shd; /* starting head */ 69 unsigned char dp_ssect; /* starting sector */ 70 unsigned char dp_scyl; /* starting cylinder */ 71 unsigned char dp_typ; /* partition type */ 72 unsigned char dp_ehd; /* end head */ 73 unsigned char dp_esect; /* end sector */ 74 unsigned char dp_ecyl; /* end cylinder */ 75 uint32_t dp_start; /* absolute starting sector number */ 76 uint32_t dp_size; /* partition size in sectors */ 77 }; 78 #ifdef CTASSERT 79 CTASSERT(sizeof (struct dos_partition) == DOSPARTSIZE); 80 #endif 81 82 #define DPSECT(s) ((s) & 0x3f) /* isolate relevant bits of sector */ 83 #define DPCYL(c, s) ((c) + (((s) & 0xc0)<<2)) /* and those that are cylinder */ 84 85 #endif /* !_SYS_DISK_MBR_H_ */ 86