/* * 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 */
