#ifndef UTIL_LINUX_PT_BSD_H #define UTIL_LINUX_PT_BSD_H #define BSD_MAXPARTITIONS 16 #define BSD_FS_UNUSED 0 #ifndef BSD_DISKMAGIC # define BSD_DISKMAGIC ((uint32_t) 0x82564557) #endif #define BSD_LINUX_BOOTDIR "/usr/ucb/mdec" #if defined (__alpha__) || defined (__powerpc__) || \ defined (__ia64__) || defined (__hppa__) # define BSD_LABELSECTOR 0 # define BSD_LABELOFFSET 64 #else # define BSD_LABELSECTOR 1 # define BSD_LABELOFFSET 0 #endif #define BSD_BBSIZE 8192 /* size of boot area, with label */ #define BSD_SBSIZE 8192 /* max size of fs superblock */ struct bsd_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 */ uint32_t d_drivedata[5]; /* drive-type specific information */ uint32_t d_spare[5]; /* 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 bsd_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 */ } __attribute__((packed)) d_partitions[BSD_MAXPARTITIONS]; /* actually may be more */ } __attribute__((packed)); /* 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 */ /* * 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 /* * 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 /* UTIL_LINUX_PT_BSD_H */