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| Current File : //sys/amd64/compile/hs32/modules/usr/src/sys/modules/geom/geom_sched/gsched_rr/@/sys/diskmbr.h |
/*-
* 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: release/9.1.0/sys/sys/diskmbr.h 234922 2012-05-02 08:38:43Z marck $
*/
#ifndef _SYS_DISKMBR_H_
#define _SYS_DISKMBR_H_
#include <sys/ioccom.h>
#define DOSBBSECTOR 0 /* DOS boot block relative sector number */
#define DOSDSNOFF 440 /* WinNT/2K/XP Drive Serial Number offset */
#define DOSPARTOFF 446
#define DOSPARTSIZE 16
#define NDOSPART 4
#define NEXTDOSPART 32
#define DOSMAGICOFFSET 510
#define DOSMAGIC 0xAA55
#define DOSPTYP_EXT 0x05 /* DOS extended partition */
#define DOSPTYP_NTFS 0x07 /* NTFS partition */
#define DOSPTYP_FAT32 0x0b /* FAT32 partition */
#define DOSPTYP_EXTLBA 0x0f /* DOS extended partition */
#define DOSPTYP_LDM 0x42 /* Win2k dynamic extended partition */
#define DOSPTYP_386BSD 0xa5 /* 386BSD partition type */
#define DOSPTYP_LINSWP 0x82 /* Linux swap partition */
#define DOSPTYP_LINUX 0x83 /* Linux partition */
#define DOSPTYP_LINLVM 0x8e /* Linux LVM partition */
#define DOSPTYP_PMBR 0xee /* GPT Protective MBR */
#define DOSPTYP_VMFS 0xfb /* VMware VMFS partition */
#define DOSPTYP_VMKDIAG 0xfc /* VMware vmkDiagnostic partition */
#define DOSPTYP_LINRAID 0xfd /* Linux raid 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_ */