7f2d47d84c
Boot stuff dependencies from NetBSD. Patch by Antoine Leca. Relocated to src/sys. The port is using the same libminc.a as usual MINIX services (and does not use NetBSD libkern); the headers imported from NetBSD sys/ tree have been kept to a minimum (still numbers higher than 30 though.) Note the peculiar way to use libraries (libsa, libi386, etc.): the source code is shared, but each component builds its own copy of the library, with its own set of preprocessor defines.
476 lines
17 KiB
C
476 lines
17 KiB
C
/* $NetBSD: disklabel.h,v 1.112 2012/01/16 18:47:58 christos Exp $ */
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/*
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* Copyright (c) 1987, 1988, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)disklabel.h 8.2 (Berkeley) 7/10/94
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*/
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#ifndef _SYS_DISKLABEL_H_
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#define _SYS_DISKLABEL_H_
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/*
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* We need <machine/types.h> for __HAVE_OLD_DISKLABEL
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*/
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#ifndef _LOCORE
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#include <sys/types.h>
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#endif
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/*
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* Each disk has a label which includes information about the hardware
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* disk geometry, filesystem partitions, and drive specific information.
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* The location of the label, as well as the number of partitions the
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* label can describe and the number of the "whole disk" (raw)
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* paritition are machine dependent.
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*/
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#if HAVE_NBTOOL_CONFIG_H
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#include <nbinclude/machine/disklabel.h>
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#else
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#include <machine/disklabel.h>
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#endif /* HAVE_NBTOOL_CONFIG_H */
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/*
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* The absolute maximum number of disk partitions allowed.
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* This is the maximum value of MAXPARTITIONS for which 'struct disklabel'
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* is <= DEV_BSIZE bytes long. If MAXPARTITIONS is greater than this, beware.
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*/
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#define MAXMAXPARTITIONS 22
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#if MAXPARTITIONS > MAXMAXPARTITIONS
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#warning beware: MAXPARTITIONS bigger than MAXMAXPARTITIONS
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#endif
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/*
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* Ports can switch their MAXPARTITIONS once, as follows:
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*
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* - define OLDMAXPARTITIONS in <machine/disklabel.h> as the old number
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* - define MAXPARTITIONS as the new number
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* - define DISKUNIT, DISKPART and DISKMINOR macros in <machine/disklabel.h>
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* as appropriate for the port (see the i386 one for an example).
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* - define __HAVE_OLD_DISKLABEL in <machine/types.h>
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*/
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#if defined(_KERNEL) && defined(__HAVE_OLD_DISKLABEL) && \
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(MAXPARTITIONS < OLDMAXPARTITIONS)
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#error "can only grow disklabel size"
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#endif
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/*
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* Translate between device numbers and major/disk unit/disk partition.
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*/
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#ifndef __HAVE_OLD_DISKLABEL
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#if !HAVE_NBTOOL_CONFIG_H
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#define DISKUNIT(dev) (minor(dev) / MAXPARTITIONS)
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#define DISKPART(dev) (minor(dev) % MAXPARTITIONS)
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#define DISKMINOR(unit, part) \
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(((unit) * MAXPARTITIONS) + (part))
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#endif /* !HAVE_NBTOOL_CONFIG_H */
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#endif
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#define MAKEDISKDEV(maj, unit, part) \
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(makedev((maj), DISKMINOR((unit), (part))))
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#define DISKMAGIC ((uint32_t)0x82564557) /* The disk magic number */
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#ifndef _LOCORE
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struct disklabel {
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uint32_t d_magic; /* the magic number */
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uint16_t d_type; /* drive type */
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uint16_t d_subtype; /* controller/d_type specific */
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char d_typename[16]; /* type name, e.g. "eagle" */
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/*
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* d_packname contains the pack identifier and is returned when
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* the disklabel is read off the disk or in-core copy.
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* d_boot0 and d_boot1 are the (optional) names of the
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* primary (block 0) and secondary (block 1-15) bootstraps
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* as found in /usr/mdec. These are returned when using
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* getdiskbyname(3) to retrieve the values from /etc/disktab.
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*/
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union {
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char un_d_packname[16]; /* pack identifier */
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struct {
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char *un_d_boot0; /* primary bootstrap name */
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char *un_d_boot1; /* secondary bootstrap name */
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} un_b;
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uint64_t un_d_pad; /* force 8 byte alignment */
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} d_un;
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#define d_packname d_un.un_d_packname
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#define d_boot0 d_un.un_b.un_d_boot0
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#define d_boot1 d_un.un_b.un_d_boot1
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/* disk geometry: */
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uint32_t d_secsize; /* # of bytes per sector */
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uint32_t d_nsectors; /* # of data sectors per track */
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uint32_t d_ntracks; /* # of tracks per cylinder */
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uint32_t d_ncylinders; /* # of data cylinders per unit */
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uint32_t d_secpercyl; /* # of data sectors per cylinder */
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uint32_t d_secperunit; /* # of data sectors per unit */
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/*
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* Spares (bad sector replacements) below are not counted in
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* d_nsectors or d_secpercyl. Spare sectors are assumed to
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* be physical sectors which occupy space at the end of each
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* track and/or cylinder.
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*/
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uint16_t d_sparespertrack; /* # of spare sectors per track */
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uint16_t d_sparespercyl; /* # of spare sectors per cylinder */
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/*
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* Alternative cylinders include maintenance, replacement,
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* configuration description areas, etc.
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*/
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uint32_t d_acylinders; /* # of alt. cylinders per unit */
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/* hardware characteristics: */
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/*
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* d_interleave, d_trackskew and d_cylskew describe perturbations
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* in the media format used to compensate for a slow controller.
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* Interleave is physical sector interleave, set up by the
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* formatter or controller when formatting. When interleaving is
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* in use, logically adjacent sectors are not physically
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* contiguous, but instead are separated by some number of
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* sectors. It is specified as the ratio of physical sectors
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* traversed per logical sector. Thus an interleave of 1:1
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* implies contiguous layout, while 2:1 implies that logical
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* sector 0 is separated by one sector from logical sector 1.
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* d_trackskew is the offset of sector 0 on track N relative to
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* sector 0 on track N-1 on the same cylinder. Finally, d_cylskew
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* is the offset of sector 0 on cylinder N relative to sector 0
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* on cylinder N-1.
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*/
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uint16_t d_rpm; /* rotational speed */
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uint16_t d_interleave; /* hardware sector interleave */
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uint16_t d_trackskew; /* sector 0 skew, per track */
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uint16_t d_cylskew; /* sector 0 skew, per cylinder */
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uint32_t d_headswitch; /* head switch time, usec */
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uint32_t d_trkseek; /* track-to-track seek, usec */
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uint32_t d_flags; /* generic flags */
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#define NDDATA 5
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uint32_t d_drivedata[NDDATA]; /* drive-type specific information */
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#define NSPARE 5
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uint32_t d_spare[NSPARE]; /* reserved for future use */
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uint32_t d_magic2; /* the magic number (again) */
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uint16_t d_checksum; /* xor of data incl. partitions */
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/* filesystem and partition information: */
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uint16_t d_npartitions; /* number of partitions in following */
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uint32_t d_bbsize; /* size of boot area at sn0, bytes */
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uint32_t d_sbsize; /* max size of fs superblock, bytes */
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struct partition { /* the partition table */
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uint32_t p_size; /* number of sectors in partition */
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uint32_t p_offset; /* starting sector */
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union {
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uint32_t fsize; /* FFS, ADOS:
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filesystem basic fragment size */
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uint32_t cdsession; /* ISO9660: session offset */
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} __partition_u2;
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#define p_fsize __partition_u2.fsize
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#define p_cdsession __partition_u2.cdsession
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uint8_t p_fstype; /* filesystem type, see below */
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uint8_t p_frag; /* filesystem fragments per block */
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union {
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uint16_t cpg; /* UFS: FS cylinders per group */
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uint16_t sgs; /* LFS: FS segment shift */
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} __partition_u1;
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#define p_cpg __partition_u1.cpg
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#define p_sgs __partition_u1.sgs
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} d_partitions[MAXPARTITIONS]; /* actually may be more */
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};
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#if defined(__HAVE_OLD_DISKLABEL) && !HAVE_NBTOOL_CONFIG_H
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/*
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* Same as above, but with OLDMAXPARTITIONS partitions. For use in
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* the old DIOC* ioctl calls.
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*/
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struct olddisklabel {
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uint32_t d_magic;
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uint16_t d_type;
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uint16_t d_subtype;
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char d_typename[16];
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union {
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char un_d_packname[16];
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struct {
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char *un_d_boot0;
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char *un_d_boot1;
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} un_b;
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} d_un;
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uint32_t d_secsize;
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uint32_t d_nsectors;
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uint32_t d_ntracks;
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uint32_t d_ncylinders;
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uint32_t d_secpercyl;
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uint32_t d_secperunit;
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uint16_t d_sparespertrack;
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uint16_t d_sparespercyl;
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uint32_t d_acylinders;
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uint16_t d_rpm;
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uint16_t d_interleave;
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uint16_t d_trackskew;
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uint16_t d_cylskew;
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uint32_t d_headswitch;
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uint32_t d_trkseek;
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uint32_t d_flags;
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uint32_t d_drivedata[NDDATA];
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uint32_t d_spare[NSPARE];
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uint32_t d_magic2;
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uint16_t d_checksum;
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uint16_t d_npartitions;
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uint32_t d_bbsize;
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uint32_t d_sbsize;
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struct opartition {
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uint32_t p_size;
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uint32_t p_offset;
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union {
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uint32_t fsize;
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uint32_t cdsession;
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} __partition_u2;
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uint8_t p_fstype;
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uint8_t p_frag;
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union {
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uint16_t cpg;
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uint16_t sgs;
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} __partition_u1;
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} d_partitions[OLDMAXPARTITIONS];
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};
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#endif /* __HAVE_OLD_DISKLABEL */
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#else /* _LOCORE */
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/*
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* offsets for asm boot files.
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*/
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.set d_secsize,40
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.set d_nsectors,44
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.set d_ntracks,48
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.set d_ncylinders,52
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.set d_secpercyl,56
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.set d_secperunit,60
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.set d_end_,276 /* size of disk label */
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#endif /* _LOCORE */
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/*
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* We normally use C99 initialisers (just in case the lists below are out
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* of sequence, or have gaps), but lint doesn't grok them.
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* Maybe some host compilers don't either, but many have for quite some time.
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*/
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#ifndef lint
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#define ARRAY_INIT(element,value) [element]=value
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#else
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#define ARRAY_INIT(element,value) value
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#endif
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/* Use pre-processor magic to get all the parameters one one line... */
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/* d_type values: */
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#define DKTYPE_DEFN(x) \
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x(UNKNOWN, 0, "unknown") \
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x(SMD, 1, "SMD") /* SMD, XSMD; VAX hp/up */ \
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x(MSCP, 2, "MSCP") /* MSCP */ \
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x(DEC, 3, "old DEC") /* other DEC (rk, rl) */ \
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x(SCSI, 4, "SCSI") /* SCSI */ \
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x(ESDI, 5, "ESDI") /* ESDI interface */ \
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x(ST506, 6, "ST506") /* ST506 etc. */ \
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x(HPIB, 7, "HP-IB") /* CS/80 on HP-IB */ \
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x(HPFL, 8, "HP-FL") /* HP Fiber-link */ \
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x(TYPE_9, 9, "type 9") \
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x(FLOPPY, 10, "floppy") /* floppy */ \
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x(CCD, 11, "ccd") /* concatenated disk device */ \
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x(VND, 12, "vnd") /* uvnode pseudo-disk */ \
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x(ATAPI, 13, "ATAPI") /* ATAPI */ \
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x(RAID, 14, "RAID") /* RAIDframe */ \
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x(LD, 15, "ld") /* logical disk */ \
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x(JFS2, 16, "jfs") /* IBM JFS2 */ \
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x(CGD, 17, "cgd") /* cryptographic pseudo-disk */ \
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x(VINUM, 18, "vinum") /* vinum volume */ \
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x(FLASH, 19, "flash") /* flash memory devices */ \
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x(DM, 20, "dm") /* device-mapper pseudo-disk devices */\
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x(RUMPD, 21, "rumpd") /* rump virtual disk */ \
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#ifndef _LOCORE
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#define DKTYPE_NUMS(tag, number, name) __CONCAT(DTYPE_,tag=number),
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#ifndef DKTYPE_ENUMNAME
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#define DKTYPE_ENUMNAME
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#endif
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enum DKTYPE_ENUMNAME { DKTYPE_DEFN(DKTYPE_NUMS) DKMAXTYPES };
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#undef DKTYPE_NUMS
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#endif
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#ifdef DKTYPENAMES
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#define DKTYPE_NAMES(tag, number, name) ARRAY_INIT(number,name),
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static const char *const dktypenames[] = { DKTYPE_DEFN(DKTYPE_NAMES) NULL };
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#undef DKTYPE_NAMES
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#endif
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/*
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* Partition type names, numbers, label-names, fsck prog, and mount prog
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*/
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#define FSTYPE_DEFN(x) \
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x(UNUSED, 0, "unused", NULL, NULL) /* unused */ \
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x(SWAP, 1, "swap", NULL, NULL) /* swap */ \
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x(V6, 2, "Version 6", NULL, NULL) /* Sixth Edition */ \
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x(V7, 3, "Version 7", "v7fs", "v7fs") /* Seventh Edition */ \
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x(SYSV, 4, "System V", NULL, NULL) /* System V */ \
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x(V71K, 5, "4.1BSD", NULL, NULL) /* V7, 1K blocks (4.1, 2.9) */ \
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x(V8, 6, "Eighth Edition",NULL, NULL) /* Eighth Edition, 4K blocks */ \
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x(BSDFFS, 7, "4.2BSD", "ffs", "ffs") /* 4.2BSD fast file system */ \
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x(MSDOS, 8, "MSDOS", "msdos", "msdos") /* MSDOS file system */ \
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x(BSDLFS, 9, "4.4LFS", "lfs", "lfs") /* 4.4BSD log-structured FS */ \
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x(OTHER, 10, "unknown", NULL, NULL) /* in use, unknown/unsupported */\
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x(HPFS, 11, "HPFS", NULL, NULL) /* OS/2 high-performance FS */ \
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x(ISO9660, 12, "ISO9660", NULL, "cd9660")/* ISO 9660, normally CD-ROM */ \
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x(BOOT, 13, "boot", NULL, NULL) /* bootstrap code in partition */\
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x(ADOS, 14, "ADOS", NULL, "ados") /* AmigaDOS fast file system */ \
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x(HFS, 15, "HFS", NULL, NULL) /* Macintosh HFS */ \
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x(FILECORE,16, "FILECORE", NULL, "filecore")/* Acorn Filecore FS */ \
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x(EX2FS, 17, "Linux Ext2","ext2fs","ext2fs")/* Linux Extended 2 FS */ \
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x(NTFS, 18, "NTFS", NULL, "ntfs") /* Windows/NT file system */ \
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x(RAID, 19, "RAID", NULL, NULL) /* RAIDframe component */ \
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x(CCD, 20, "ccd", NULL, NULL) /* concatenated disk component */\
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x(JFS2, 21, "jfs", NULL, NULL) /* IBM JFS2 */ \
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x(APPLEUFS,22, "Apple UFS", "ffs", "ffs") /* Apple UFS */ \
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/* XXX this is not the same as FreeBSD. How to solve? */ \
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x(VINUM, 23, "vinum", NULL, NULL) /* Vinum */ \
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x(UDF, 24, "UDF", NULL, "udf") /* UDF */ \
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x(SYSVBFS, 25, "SysVBFS", NULL, "sysvbfs")/* System V boot file system */ \
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x(EFS, 26, "EFS", NULL, "efs") /* SGI's Extent Filesystem */ \
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x(NILFS, 27, "NiLFS", NULL, "nilfs") /* NTT's NiLFS(2) */ \
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x(CGD, 28, "cgd", NULL, NULL) /* Cryptographic disk */ \
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x(MINIXFS3,29, "MINIX FSv3", NULL, NULL) /* MINIX file system v3 */
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#ifndef _LOCORE
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#define FS_TYPENUMS(tag, number, name, fsck, mount) __CONCAT(FS_,tag=number),
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#ifndef FSTYPE_ENUMNAME
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#define FSTYPE_ENUMNAME
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#endif
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enum FSTYPE_ENUMNAME { FSTYPE_DEFN(FS_TYPENUMS) FSMAXTYPES };
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#undef FS_TYPENUMS
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#endif
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#ifdef FSTYPENAMES
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#define FS_TYPENAMES(tag, number, name, fsck, mount) ARRAY_INIT(number,name),
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static const char *const fstypenames[] = { FSTYPE_DEFN(FS_TYPENAMES) NULL };
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#undef FS_TYPENAMES
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#endif
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#ifdef FSCKNAMES
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/* These are the names MOUNT_XXX from <sys/mount.h> */
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#define FS_FSCKNAMES(tag, number, name, fsck, mount) ARRAY_INIT(number,fsck),
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static const char *const fscknames[] = { FSTYPE_DEFN(FS_FSCKNAMES) NULL };
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#undef FS_FSCKNAMES
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#define FSMAXNAMES FSMAXTYPES
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#endif
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#ifdef MOUNTNAMES
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/* These are the names MOUNT_XXX from <sys/mount.h> */
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#define FS_MOUNTNAMES(tag, number, name, fsck, mount) ARRAY_INIT(number,mount),
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static const char *const mountnames[] = { FSTYPE_DEFN(FS_MOUNTNAMES) NULL };
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#undef FS_MOUNTNAMES
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#define FSMAXMOUNTNAMES FSMAXTYPES
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#endif
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/*
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* flags shared by various drives:
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*/
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#define D_REMOVABLE 0x01 /* removable media */
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#define D_ECC 0x02 /* supports ECC */
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#define D_BADSECT 0x04 /* supports bad sector forw. */
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#define D_RAMDISK 0x08 /* disk emulator */
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#define D_CHAIN 0x10 /* can do back-back transfers */
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#define D_SCSI_MMC 0x20 /* SCSI MMC sessioned media */
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/*
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* Drive data for SMD.
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*/
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#define d_smdflags d_drivedata[0]
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#define D_SSE 0x1 /* supports skip sectoring */
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#define d_mindist d_drivedata[1]
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#define d_maxdist d_drivedata[2]
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#define d_sdist d_drivedata[3]
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/*
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* Drive data for ST506.
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*/
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#define d_precompcyl d_drivedata[0]
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#define d_gap3 d_drivedata[1] /* used only when formatting */
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/*
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* Drive data for SCSI.
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*/
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#define d_blind d_drivedata[0]
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#ifndef _LOCORE
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/*
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* Structure used to perform a format or other raw operation,
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* returning data and/or register values. Register identification
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* and format are device- and driver-dependent. Currently unused.
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*/
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struct format_op {
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char *df_buf;
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int df_count; /* value-result */
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daddr_t df_startblk;
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int df_reg[8]; /* result */
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};
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#ifdef _KERNEL
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/*
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* Structure used internally to retrieve information about a partition
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* on a disk.
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*/
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struct partinfo {
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struct disklabel *disklab;
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struct partition *part;
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};
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struct disk;
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int disk_read_sectors(void (*)(struct buf *), const struct disklabel *,
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struct buf *, unsigned int, int);
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void diskerr(const struct buf *, const char *, const char *, int,
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int, const struct disklabel *);
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u_int dkcksum(struct disklabel *);
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u_int dkcksum_sized(struct disklabel *, size_t);
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int setdisklabel(struct disklabel *, struct disklabel *, u_long,
|
|
struct cpu_disklabel *);
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const char *readdisklabel(dev_t, void (*)(struct buf *),
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struct disklabel *, struct cpu_disklabel *);
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int writedisklabel(dev_t, void (*)(struct buf *), struct disklabel *,
|
|
struct cpu_disklabel *);
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const char *convertdisklabel(struct disklabel *, void (*)(struct buf *),
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struct buf *, uint32_t);
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int bounds_check_with_label(struct disk *, struct buf *, int);
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int bounds_check_with_mediasize(struct buf *, int, uint64_t);
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|
const char *getfstypename(int);
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#endif
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#endif /* _LOCORE */
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|
|
|
#if !defined(_KERNEL) && !defined(_LOCORE)
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|
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#include <sys/cdefs.h>
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#endif
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#endif /* !_SYS_DISKLABEL_H_ */
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