| San Mehat | a2677e4 | 2009-12-13 10:40:18 -0800 | [diff] [blame] | 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 | * 4. 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 | * @(#)disklabel.h 8.2 (Berkeley) 7/10/94 |
| 30 | * $FreeBSD: src/sys/sys/diskmbr.h,v 1.99.2.1 2005/01/31 23:26:56 imp Exp $ |
| 31 | */ |
| 32 | |
| 33 | #ifndef _SYS_DISKMBR_H_ |
| 34 | #define _SYS_DISKMBR_H_ |
| 35 | |
| 36 | #define DOSBBSECTOR 0 /* DOS boot block relative sector number */ |
| 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_386BSD 0xa5 /* 386BSD partition type */ |
| 45 | #define DOSPTYP_LINSWP 0x82 /* Linux swap partition */ |
| 46 | #define DOSPTYP_LINUX 0x83 /* Linux partition */ |
| 47 | #define DOSPTYP_PMBR 0xee /* GPT Protective MBR */ |
| 48 | #define DOSPTYP_EXT 5 /* DOS extended partition */ |
| 49 | #define DOSPTYP_EXTLBA 15 /* DOS extended partition */ |
| 50 | |
| 51 | struct dos_partition { |
| 52 | unsigned char dp_flag; /* bootstrap flags */ |
| 53 | unsigned char dp_shd; /* starting head */ |
| 54 | unsigned char dp_ssect; /* starting sector */ |
| 55 | unsigned char dp_scyl; /* starting cylinder */ |
| 56 | unsigned char dp_typ; /* partition type */ |
| 57 | unsigned char dp_ehd; /* end head */ |
| 58 | unsigned char dp_esect; /* end sector */ |
| 59 | unsigned char dp_ecyl; /* end cylinder */ |
| 60 | u_int32_t dp_start; /* absolute starting sector number */ |
| 61 | u_int32_t dp_size; /* partition size in sectors */ |
| 62 | }; |
| 63 | #ifdef CTASSERT |
| 64 | CTASSERT(sizeof (struct dos_partition) == DOSPARTSIZE); |
| 65 | #endif |
| 66 | |
| 67 | #define DPSECT(s) ((s) & 0x3f) /* isolate relevant bits of sector */ |
| 68 | #define DPCYL(c, s) ((c) + (((s) & 0xc0)<<2)) /* and those that are cylinder */ |
| 69 | |
| 70 | #define DIOCSMBR _IOW('M', 129, u_char[512]) |
| 71 | |
| 72 | #endif /* !_SYS_DISKMBR_H_ */ |