/* $OpenBSD: disklabel.h,v 1.3 2006/07/01 16:50:33 krw Exp $ */ /* $NetBSD: disklabel.h,v 1.2 2001/11/25 19:02:03 thorpej Exp $ */ /* * Copyright (c) 1994 Mark Brinicombe. * Copyright (c) 1994 Brini. * All rights reserved. * * This code is derived from software written for Brini by Mark Brinicombe * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Brini. * 4. The name of the company nor the name of the author may be used to * endorse or promote products derived from this software without specific * prior written permission. * * THIS SOFTWARE IS PROVIDED BY BRINI ``AS IS'' AND ANY EXPRESS OR IMPLIED * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL BRINI OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * RiscBSD kernel project * * disklabel.h * * machine specific disk label info * * Created : 04/10/94 */ #ifndef _AVIION_DISKLABEL_H_ #define _AVIION_DISKLABEL_H_ #define LABELSECTOR 1 /* sector containing label */ #define LABELOFFSET 0 /* offset of label in sector */ #define MAXPARTITIONS 16 /* number of partitions */ #define RAW_PART 2 /* raw partition: XX?c */ #include /* MBR partition table */ #define DOSBBSECTOR 0 /* MBR sector number */ #define DOSPARTOFF 446 /* Offset of MBR partition table */ #define NDOSPART 4 /* # of partitions in MBR */ #define DOSMAGICOFF 510 /* Offset of magic number */ #define DOSMAGIC 0xaa55 /* Actual magic number */ #define MBRMAGIC DOSMAGIC #define DOSMBR_SIGNATURE MBRMAGIC #define DOSMBR_SIGNATURE_OFF DOSMAGICOFF #define DOSACTIVE 0x80 struct dos_partition { u_int8_t dp_flag; /* bootstrap flags */ u_int8_t dp_shd; /* starting head */ u_int8_t dp_ssect; /* starting sector */ u_int8_t dp_scyl; /* starting cylinder */ u_int8_t dp_typ; /* partition type (see below) */ u_int8_t dp_ehd; /* end head */ u_int8_t dp_esect; /* end sector */ u_int8_t dp_ecyl; /* end cylinder */ u_int32_t dp_start; /* absolute starting sector number */ u_int32_t dp_size; /* partition size in sectors */ }; /* Known DOS partition types. */ #define DOSPTYP_UNUSED 0x00 /* Unused partition */ #define DOSPTYP_FAT12 0x01 /* 12-bit FAT */ #define DOSPTYP_FAT16S 0x04 /* 16-bit FAT, less than 32M */ #define DOSPTYP_EXTEND 0x05 /* Extended; contains sub-partitions */ #define DOSPTYP_FAT16B 0x06 /* 16-bit FAT, more than 32M */ #define DOSPTYP_FAT32 0x0b /* 32-bit FAT */ #define DOSPTYP_FAT32L 0x0c /* 32-bit FAT, LBA-mapped */ #define DOSPTYP_FAT16L 0x0e /* 16-bit FAT, LBA-mapped */ #define DOSPTYP_EXTENDL 0x0f /* Extended, LBA-mapped; contains sub-partitions */ #define DOSPTYP_ONTRACK 0x54 #define DOSPTYP_LINUX 0x83 /* That other thing */ #define DOSPTYP_OPENBSD 0xa6 /* OpenBSD partition type */ /* Isolate the relevant bits to get sector and cylinder. */ #define DPSECT(s) ((s) & 0x3f) #define DPCYL(c, s) ((c) + (((s) & 0xc0) << 2)) struct cpu_disklabel { struct dos_partition dosparts[NDOSPART]; struct dkbad bad; }; #endif /* _AVIION_DISKLABEL_H_ */