zfs-builds-mm/zfs-0.8.2/lib/libspl/include/sys/dktp/fdisk.h

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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2009 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988 AT&T */
/* All Rights Reserved */
#ifndef _SYS_DKTP_FDISK_H
#define _SYS_DKTP_FDISK_H
#ifdef __cplusplus
extern "C" {
#endif
/*
* fdisk.h
* This file defines the structure of physical disk sector 0 for use on
* AT386 systems. The format of this sector is constrained by the ROM
* BIOS and MS-DOS conventions.
* Note that this block does not define the partitions used by the unix
* driver. The unix partitions are obtained from the VTOC.
*/
/*
* the MAX values are the maximum usable values for BIOS chs values
* The MAX_CYL value of 1022 is the maximum usable value
* the value of 1023 is a fence value,
* indicating no CHS geometry exists for the corresponding LBA value.
* HEAD range [ 0 .. MAX_HEAD ], so number of heads is (MAX_HEAD + 1)
* SECT range [ 1 .. MAX_SECT ], so number of sectors is (MAX_SECT)
*/
#define MAX_SECT (63)
#define MAX_CYL (1022)
#define MAX_HEAD (254)
/*
* BOOTSZ was reduced from 446 to 440 bytes to NOT overwrite the Windows
* Vista DISKID. Otherwise Vista won't boot from Solaris GRUB in a dual-boot
* setup.
* The actual size of mboot code is 425 bytes while that of GRUB stage1 is
* 423 bytes. So this changes does not harm them.
*/
#define BOOTSZ 440 /* size of boot code in master boot block */
#define FD_NUMPART 4 /* number of 'partitions' in fdisk table */
#define MBB_MAGIC 0xAA55 /* magic number for mboot.signature */
#define DEFAULT_INTLV 4 /* default interleave for testing tracks */
#define MINPSIZE 4 /* minimum number of cylinders in a partition */
#define TSTPAT 0xE5 /* test pattern for verifying disk */
/*
* structure to hold the fdisk partition table
*/
struct ipart {
unsigned char bootid; /* bootable or not */
unsigned char beghead; /* beginning head, sector, cylinder */
unsigned char begsect; /* begcyl is a 10-bit number. High 2 bits */
unsigned char begcyl; /* are in begsect. */
unsigned char systid; /* OS type */
unsigned char endhead; /* ending head, sector, cylinder */
unsigned char endsect; /* endcyl is a 10-bit number. High 2 bits */
unsigned char endcyl; /* are in endsect. */
uint32_t relsect; /* first sector relative to start of disk */
uint32_t numsect; /* number of sectors in partition */
};
/*
* Values for bootid.
*/
#define NOTACTIVE 0
#define ACTIVE 128
/*
* Values for systid.
*/
#define UNUSED 0 /* Empty Partition */
#define DOSOS12 1 /* DOS partition, 12-bit FAT */
#define PCIXOS 2 /* PC/IX partition */
#define DOSOS16 4 /* DOS partition, 16-bit FAT */
#define EXTDOS 5 /* EXT-DOS partition */
#define DOSHUGE 6 /* Huge DOS partition > 32MB */
#define FDISK_IFS 7 /* Installable File System (IFS): HPFS & NTFS */
#define FDISK_AIXBOOT 8 /* AIX Boot */
#define FDISK_AIXDATA 9 /* AIX Data */
#define FDISK_OS2BOOT 10 /* OS/2 Boot Manager */
#define FDISK_WINDOWS 11 /* Windows 95 FAT32 (up to 2047GB) */
#define FDISK_EXT_WIN 12 /* Windows 95 FAT32 (extended-INT13) */
#define FDISK_FAT95 14 /* DOS 16-bit FAT, LBA-mapped */
#define FDISK_EXTLBA 15 /* Extended partition, LBA-mapped */
#define DIAGPART 18 /* Diagnostic boot partition (OS independent) */
#define FDISK_LINUX 65 /* Linux */
#define FDISK_LINUXDSWAP 66 /* Linux swap (sharing disk w/ DRDOS) */
#define FDISK_LINUXDNAT 67 /* Linux native (sharing disk with DRDOS) */
#define FDISK_CPM 82 /* CP/M */
#define DOSDATA 86 /* DOS data partition */
#define OTHEROS 98 /* part. type for appl. (DB?) needs */
/* raw partition. ID was 0 but conflicted */
/* with DOS 3.3 fdisk */
#define UNIXOS 99 /* UNIX V.x partition */
#define FDISK_NOVELL2 100 /* Novell Netware 286 */
#define FDISK_NOVELL3 101 /* Novell Netware 3.x and later */
#define FDISK_QNX4 119 /* QNX 4.x */
#define FDISK_QNX42 120 /* QNX 4.x 2nd part */
#define FDISK_QNX43 121 /* QNX 4.x 3rd part */
#define SUNIXOS 130 /* Solaris UNIX partition */
#define FDISK_LINUXNAT 131 /* Linux native */
#define FDISK_NTFSVOL1 134 /* NTFS volume set 1 */
#define FDISK_NTFSVOL2 135 /* NTFS volume set 2 */
#define FDISK_BSD 165 /* BSD/386, 386BSD, NetBSD, FreeBSD, OpenBSD */
#define FDISK_NEXTSTEP 167 /* NeXTSTEP */
#define FDISK_BSDIFS 183 /* BSDI file system */
#define FDISK_BSDISWAP 184 /* BSDI swap */
#define X86BOOT 190 /* x86 Solaris boot partition */
#define SUNIXOS2 191 /* Solaris UNIX partition */
#define EFI_PMBR 238 /* EFI PMBR */
#define EFI_FS 239 /* EFI File System (System Partition) */
#define MAXDOS 65535L /* max size (sectors) for DOS partition */
/*
* structure to hold master boot block in physical sector 0 of the disk.
* Note that partitions stuff can't be directly included in the structure
* because of lameo '386 compiler alignment design.
* Alignment issues also force us to have 2 16bit entities for a single
* 32bit win_volserno. It is not used anywhere anyway.
*/
struct mboot { /* master boot block */
char bootinst[BOOTSZ];
uint16_t win_volserno_lo;
uint16_t win_volserno_hi;
uint16_t reserved;
char parts[FD_NUMPART * sizeof (struct ipart)];
ushort_t signature;
};
#if defined(__i386) || defined(__amd64)
/* Byte offset of the start of the partition table within the sector */
#define FDISK_PART_TABLE_START 446
/* Maximum number of valid partitions assumed as 32 */
#define MAX_EXT_PARTS 32
#else
#define MAX_EXT_PARTS 0
#endif /* if defined(__i386) || defined(__amd64) */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_DKTP_FDISK_H */