| #ifndef FDISK_BSD_LABEL_H |
| #define FDISK_BSD_LABEL_H |
| |
| /* |
| * Copyright (c) 1987, 1988 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. |
| * 3. All advertising materials mentioning features or use of this software |
| * must display the following acknowledgement: |
| * This product includes software developed by the University of |
| * California, Berkeley and its contributors. |
| * 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. |
| */ |
| |
| #include <stdint.h> |
| |
| #ifndef BSD_DISKMAGIC |
| #define BSD_DISKMAGIC ((uint32_t) 0x82564557) |
| #endif |
| |
| #ifndef BSD_MAXPARTITIONS |
| #define BSD_MAXPARTITIONS 16 |
| #endif |
| |
| #define BSD_LINUX_BOOTDIR "/usr/ucb/mdec" |
| |
| #if defined (i386) || defined (__sparc__) || defined (__arm__) || \ |
| defined (__mips__) || defined (__s390__) || defined (__sh__) || \ |
| defined(__x86_64__) || defined (__avr32__) || defined(__cris__) |
| #define BSD_LABELSECTOR 1 |
| #define BSD_LABELOFFSET 0 |
| #elif defined (__alpha__) || defined (__powerpc__) || defined (__ia64__) || defined (__hppa__) |
| #define BSD_LABELSECTOR 0 |
| #define BSD_LABELOFFSET 64 |
| #elif defined (__s390__) || defined (__s390x__) |
| #define BSD_LABELSECTOR 1 |
| #define BSD_LABELOFFSET 0 |
| #else |
| #error unknown architecture |
| #endif |
| |
| #define BSD_BBSIZE 8192 /* size of boot area, with label */ |
| #define BSD_SBSIZE 8192 /* max size of fs superblock */ |
| |
| struct xbsd_disklabel { |
| uint32_t d_magic; /* the magic number */ |
| int16_t d_type; /* drive type */ |
| int16_t d_subtype; /* controller/d_type specific */ |
| char d_typename[16]; /* type name, e.g. "eagle" */ |
| char d_packname[16]; /* pack identifier */ |
| /* disk geometry: */ |
| uint32_t d_secsize; /* # of bytes per sector */ |
| uint32_t d_nsectors; /* # of data sectors per track */ |
| uint32_t d_ntracks; /* # of tracks per cylinder */ |
| uint32_t d_ncylinders; /* # of data cylinders per unit */ |
| uint32_t d_secpercyl; /* # of data sectors per cylinder */ |
| uint32_t d_secperunit; /* # of data sectors per unit */ |
| /* |
| * Spares (bad sector replacements) below |
| * are not counted in d_nsectors or d_secpercyl. |
| * Spare sectors are assumed to be physical sectors |
| * which occupy space at the end of each track and/or cylinder. |
| */ |
| uint16_t d_sparespertrack; /* # of spare sectors per track */ |
| uint16_t d_sparespercyl; /* # of spare sectors per cylinder */ |
| /* |
| * Alternate cylinders include maintenance, replacement, |
| * configuration description areas, etc. |
| */ |
| uint32_t d_acylinders; /* # of alt. cylinders per unit */ |
| |
| /* hardware characteristics: */ |
| /* |
| * d_interleave, d_trackskew and d_cylskew describe perturbations |
| * in the media format used to compensate for a slow controller. |
| * Interleave is physical sector interleave, set up by the formatter |
| * or controller when formatting. When interleaving is in use, |
| * logically adjacent sectors are not physically contiguous, |
| * but instead are separated by some number of sectors. |
| * It is specified as the ratio of physical sectors traversed |
| * per logical sector. Thus an interleave of 1:1 implies contiguous |
| * layout, while 2:1 implies that logical sector 0 is separated |
| * by one sector from logical sector 1. |
| * d_trackskew is the offset of sector 0 on track N |
| * relative to sector 0 on track N-1 on the same cylinder. |
| * Finally, d_cylskew is the offset of sector 0 on cylinder N |
| * relative to sector 0 on cylinder N-1. |
| */ |
| uint16_t d_rpm; /* rotational speed */ |
| uint16_t d_interleave; /* hardware sector interleave */ |
| uint16_t d_trackskew; /* sector 0 skew, per track */ |
| uint16_t d_cylskew; /* sector 0 skew, per cylinder */ |
| uint32_t d_headswitch; /* head switch time, usec */ |
| uint32_t d_trkseek; /* track-to-track seek, usec */ |
| uint32_t d_flags; /* generic flags */ |
| #define NDDATA 5 |
| uint32_t d_drivedata[NDDATA]; /* drive-type specific information */ |
| #define NSPARE 5 |
| uint32_t d_spare[NSPARE]; /* reserved for future use */ |
| uint32_t d_magic2; /* the magic number (again) */ |
| uint16_t d_checksum; /* xor of data incl. partitions */ |
| /* filesystem and partition information: */ |
| uint16_t d_npartitions; /* number of partitions in following */ |
| uint32_t d_bbsize; /* size of boot area at sn0, bytes */ |
| uint32_t d_sbsize; /* max size of fs superblock, bytes */ |
| struct xbsd_partition { /* the partition table */ |
| uint32_t p_size; /* number of sectors in partition */ |
| uint32_t p_offset; /* starting sector */ |
| uint32_t p_fsize; /* filesystem basic fragment size */ |
| uint8_t p_fstype; /* filesystem type, see below */ |
| uint8_t p_frag; /* filesystem fragments per block */ |
| uint16_t p_cpg; /* filesystem cylinders per group */ |
| } d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */ |
| }; |
| |
| /* d_type values: */ |
| #define BSD_DTYPE_SMD 1 /* SMD, XSMD; VAX hp/up */ |
| #define BSD_DTYPE_MSCP 2 /* MSCP */ |
| #define BSD_DTYPE_DEC 3 /* other DEC (rk, rl) */ |
| #define BSD_DTYPE_SCSI 4 /* SCSI */ |
| #define BSD_DTYPE_ESDI 5 /* ESDI interface */ |
| #define BSD_DTYPE_ST506 6 /* ST506 etc. */ |
| #define BSD_DTYPE_HPIB 7 /* CS/80 on HP-IB */ |
| #define BSD_DTYPE_HPFL 8 /* HP Fiber-link */ |
| #define BSD_DTYPE_FLOPPY 10 /* floppy */ |
| |
| /* d_subtype values: */ |
| #define BSD_DSTYPE_INDOSPART 0x8 /* is inside dos partition */ |
| #define BSD_DSTYPE_DOSPART(s) ((s) & 3) /* dos partition number */ |
| #define BSD_DSTYPE_GEOMETRY 0x10 /* drive params in label */ |
| |
| #ifdef DKTYPENAMES |
| static char *xbsd_dktypenames[] = { |
| "unknown", |
| "SMD", |
| "MSCP", |
| "old DEC", |
| "SCSI", |
| "ESDI", |
| "ST506", |
| "HP-IB", |
| "HP-FL", |
| "type 9", |
| "floppy", |
| 0 |
| }; |
| #define BSD_DKMAXTYPES (sizeof(xbsd_dktypenames) / sizeof(xbsd_dktypenames[0]) - 1) |
| #endif |
| |
| /* |
| * Filesystem type and version. |
| * Used to interpret other filesystem-specific |
| * per-partition information. |
| */ |
| #define BSD_FS_UNUSED 0 /* unused */ |
| #define BSD_FS_SWAP 1 /* swap */ |
| #define BSD_FS_V6 2 /* Sixth Edition */ |
| #define BSD_FS_V7 3 /* Seventh Edition */ |
| #define BSD_FS_SYSV 4 /* System V */ |
| #define BSD_FS_V71K 5 /* V7 with 1K blocks (4.1, 2.9) */ |
| #define BSD_FS_V8 6 /* Eighth Edition, 4K blocks */ |
| #define BSD_FS_BSDFFS 7 /* 4.2BSD fast file system */ |
| #define BSD_FS_BSDLFS 9 /* 4.4BSD log-structured file system */ |
| #define BSD_FS_OTHER 10 /* in use, but unknown/unsupported */ |
| #define BSD_FS_HPFS 11 /* OS/2 high-performance file system */ |
| #define BSD_FS_ISO9660 12 /* ISO-9660 filesystem (cdrom) */ |
| #define BSD_FS_ISOFS BSD_FS_ISO9660 |
| #define BSD_FS_BOOT 13 /* partition contains bootstrap */ |
| #define BSD_FS_ADOS 14 /* AmigaDOS fast file system */ |
| #define BSD_FS_HFS 15 /* Macintosh HFS */ |
| #define BSD_FS_ADVFS 16 /* Digital Unix AdvFS */ |
| |
| /* this is annoying, but it's also the way it is :-( */ |
| #ifdef __alpha__ |
| #define BSD_FS_EXT2 8 /* ext2 file system */ |
| #else |
| #define BSD_FS_MSDOS 8 /* MS-DOS file system */ |
| #endif |
| |
| #ifdef DKTYPENAMES |
| static struct systypes xbsd_fstypes[] = { |
| {BSD_FS_UNUSED, "unused"}, |
| {BSD_FS_SWAP, "swap"}, |
| {BSD_FS_V6, "Version 6"}, |
| {BSD_FS_V7, "Version 7"}, |
| {BSD_FS_SYSV, "System V"}, |
| {BSD_FS_V71K, "4.1BSD"}, |
| {BSD_FS_V8, "Eighth Edition"}, |
| {BSD_FS_BSDFFS, "4.2BSD"}, |
| #ifdef __alpha__ |
| {BSD_FS_EXT2, "ext2"}, |
| #else |
| {BSD_FS_MSDOS, "MS-DOS"}, |
| #endif |
| {BSD_FS_BSDLFS, "4.4LFS"}, |
| {BSD_FS_OTHER, "unknown"}, |
| {BSD_FS_HPFS, "HPFS"}, |
| {BSD_FS_ISO9660,"ISO-9660"}, |
| {BSD_FS_BOOT, "boot"}, |
| {BSD_FS_ADOS, "ADOS"}, |
| {BSD_FS_HFS, "HFS"}, |
| {BSD_FS_ADVFS, "AdvFS"}, |
| { 0, NULL } |
| }; |
| #define BSD_FSMAXTYPES (ARRAY_SIZE(xbsd_fstypes)-1) |
| |
| #endif |
| |
| /* |
| * flags shared by various drives: |
| */ |
| #define BSD_D_REMOVABLE 0x01 /* removable media */ |
| #define BSD_D_ECC 0x02 /* supports ECC */ |
| #define BSD_D_BADSECT 0x04 /* supports bad sector forw. */ |
| #define BSD_D_RAMDISK 0x08 /* disk emulator */ |
| #define BSD_D_CHAIN 0x10 /* can do back-back transfers */ |
| #define BSD_D_DOSPART 0x20 /* within MSDOS partition */ |
| |
| #endif /* FDISK_BSD_LABEL_H */ |
