#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 (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 */