| /*- |
| * Copyright (c) 1987, 1988, 1993 |
| * The Regents of the University of California. All rights reserved. |
| * |
| * 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. |
| * 4. Neither the name of the University nor the names of its contributors |
| * may be used to endorse or promote products derived from this software |
| * without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 THE REGENTS 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. |
| * |
| * @(#)disklabel.h 8.2 (Berkeley) 7/10/94 |
| * $FreeBSD: src/sys/sys/diskmbr.h,v 1.99.2.1 2005/01/31 23:26:56 imp Exp $ |
| */ |
| |
| #ifndef _SYS_DISKMBR_H_ |
| #define _SYS_DISKMBR_H_ |
| |
| #define DOSBBSECTOR 0 /* DOS boot block relative sector number */ |
| #define DOSPARTOFF 446 |
| #define DOSPARTSIZE 16 |
| #define NDOSPART 4 |
| #define NEXTDOSPART 32 |
| #define DOSMAGICOFFSET 510 |
| #define DOSMAGIC 0xAA55 |
| |
| #define DOSPTYP_386BSD 0xa5 /* 386BSD partition type */ |
| #define DOSPTYP_LINSWP 0x82 /* Linux swap partition */ |
| #define DOSPTYP_LINUX 0x83 /* Linux partition */ |
| #define DOSPTYP_PMBR 0xee /* GPT Protective MBR */ |
| #define DOSPTYP_EXT 5 /* DOS extended partition */ |
| #define DOSPTYP_EXTLBA 15 /* DOS extended partition */ |
| |
| struct dos_partition { |
| unsigned char dp_flag; /* bootstrap flags */ |
| unsigned char dp_shd; /* starting head */ |
| unsigned char dp_ssect; /* starting sector */ |
| unsigned char dp_scyl; /* starting cylinder */ |
| unsigned char dp_typ; /* partition type */ |
| unsigned char dp_ehd; /* end head */ |
| unsigned char dp_esect; /* end sector */ |
| unsigned char dp_ecyl; /* end cylinder */ |
| u_int32_t dp_start; /* absolute starting sector number */ |
| u_int32_t dp_size; /* partition size in sectors */ |
| }; |
| #ifdef CTASSERT |
| CTASSERT(sizeof (struct dos_partition) == DOSPARTSIZE); |
| #endif |
| |
| void dos_partition_dec(void const *pp, struct dos_partition *d); |
| void dos_partition_enc(void *pp, struct dos_partition *d); |
| |
| #define DPSECT(s) ((s) & 0x3f) /* isolate relevant bits of sector */ |
| #define DPCYL(c, s) ((c) + (((s) & 0xc0)<<2)) /* and those that are cylinder */ |
| |
| #define DIOCSMBR _IOW('M', 129, u_char[512]) |
| |
| #endif /* !_SYS_DISKMBR_H_ */ |
