diff options
author | obrien <obrien@FreeBSD.org> | 2004-01-28 19:29:16 +0000 |
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committer | obrien <obrien@FreeBSD.org> | 2004-01-28 19:29:16 +0000 |
commit | b329bb8a2cfc1fb9e2950801b3b871738397a7f1 (patch) | |
tree | 5c67714441b3be63a284ce1cd8472bcffc7080f6 /sbin/disklabel | |
parent | 51853688ba3a0bf05c1f279215e49513154bd973 (diff) | |
download | FreeBSD-src-b329bb8a2cfc1fb9e2950801b3b871738397a7f1.zip FreeBSD-src-b329bb8a2cfc1fb9e2950801b3b871738397a7f1.tar.gz |
This has been disconnected from the build since May 2003. GC it, as
bsdlabel and sunlabel are what we use now.
Diffstat (limited to 'sbin/disklabel')
-rw-r--r-- | sbin/disklabel/Makefile | 12 | ||||
-rw-r--r-- | sbin/disklabel/disklabel.5 | 525 | ||||
-rw-r--r-- | sbin/disklabel/disklabel.8 | 976 | ||||
-rw-r--r-- | sbin/disklabel/disklabel.c | 1581 | ||||
-rw-r--r-- | sbin/disklabel/pathnames.h | 40 |
5 files changed, 0 insertions, 3134 deletions
diff --git a/sbin/disklabel/Makefile b/sbin/disklabel/Makefile deleted file mode 100644 index 9884d55..0000000 --- a/sbin/disklabel/Makefile +++ /dev/null @@ -1,12 +0,0 @@ -# @(#)Makefile 8.2 (Berkeley) 3/17/94 -# $FreeBSD$ - -PROG= disklabel -SRCS= disklabel.c -MAN= disklabel.5 disklabel.8 - -.if ${MACHINE} == "pc98" -CFLAGS+= -DPC98 -.endif - -.include <bsd.prog.mk> diff --git a/sbin/disklabel/disklabel.5 b/sbin/disklabel/disklabel.5 deleted file mode 100644 index e74c603..0000000 --- a/sbin/disklabel/disklabel.5 +++ /dev/null @@ -1,525 +0,0 @@ -.\" Copyright (c) 1987, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" This code is derived from software contributed to Berkeley by -.\" Symmetric Computer Systems. -.\" -.\" 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 acknowledgment: -.\" 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. -.\" -.\" @(#)disklabel.5.5 8.1 (Berkeley) 6/5/93 -.\" $FreeBSD$ -.\" -.Dd June 5, 1993 -.Dt DISKLABEL 5 -.Os -.Sh NAME -.Nm disklabel -.Nd disk pack label -.Sh SYNOPSIS -.In sys/disklabel.h -.Sh DESCRIPTION -Each disk or disk pack on a system may contain a disk label -which provides detailed information -about the geometry of the disk and the partitions into which the disk -is divided. -It should be initialized when the disk is formatted, -and may be changed later with the -.Xr disklabel 8 -program. -This information is used by the system disk driver and by the bootstrap -program to determine how to program the drive -and where to find the file systems on the disk partitions. -Additional information is used by the file system in order -to use the disk most efficiently and to locate important file system information. -The description of each partition contains an identifier for the partition -type (standard file system, swap area, etc.). -The file system updates the in-core copy of the label if it contains -incomplete information about the file system. -.Pp -The label is located in sector number -.Dv LABELSECTOR -of the drive, usually sector 0 where it may be found -without any information about the disk geometry. -It is at an offset -.Dv LABELOFFSET -from the beginning of the sector, to allow room for the initial bootstrap. -The disk sector containing the label is normally made read-only -so that it is not accidentally overwritten by pack-to-pack copies -or swap operations; -the -.Dv DIOCWLABEL -.Xr ioctl 2 , -which is done as needed by the -.Xr disklabel 8 -program. -.Pp -A copy of the in-core label for a disk can be obtained with the -.Dv DIOCGDINFO -.Xr ioctl 2 ; -this works with a file descriptor for a block or character (``raw'') device -for any partition of the disk. -The in-core copy of the label is set by the -.Dv DIOCSDINFO -.Xr ioctl 2 . -The offset of a partition cannot generally be changed while it is open, -nor can it be made smaller while it is open. -One exception is that any change is allowed if no label was found -on the disk, and the driver was able to construct only a skeletal label -without partition information. -Finally, the -.Dv DIOCWDINFO -.Xr ioctl 2 -operation sets the in-core label and then updates the on-disk label; -there must be an existing label on the disk for this operation to succeed. -Thus, the initial label for a disk or disk pack must be installed -by writing to the raw disk. -All of these operations are normally done using -.Xr disklabel 8 . -.Pp -The format of the disk label, as specified in -.In sys/disklabel.h , -is -.Bd -literal -#ifndef _SYS_DISKLABEL_H_ -#define _SYS_DISKLABEL_H_ - -#ifndef _KERNEL -#include <sys/types.h> -#endif -#include <sys/ioccom.h> - -/* - * Disk description table, see disktab(5) - */ -#define _PATH_DISKTAB "/etc/disktab" -#define DISKTAB "/etc/disktab" /* deprecated */ - -/* - * Each disk has a label which includes information about the hardware - * disk geometry, file system partitions, and drive specific information. - * The label is in block 0 or 1, possibly offset from the beginning - * to leave room for a bootstrap, etc. - */ - -/* XXX these should be defined per controller (or drive) elsewhere, not here! */ -#ifdef __i386__ -#define LABELSECTOR 1 /* sector containing label */ -#define LABELOFFSET 0 /* offset of label in sector */ -#endif - -#ifdef __alpha__ -#define LABELSECTOR 0 -#define LABELOFFSET 64 -#endif - -#ifndef LABELSECTOR -#define LABELSECTOR 0 /* sector containing label */ -#endif - -#ifndef LABELOFFSET -#define LABELOFFSET 64 /* offset of label in sector */ -#endif - -#define DISKMAGIC ((u_int32_t)0x82564557) /* The disk magic number */ -#ifndef MAXPARTITIONS -#define MAXPARTITIONS 8 -#endif - -#define LABEL_PART 2 /* partition containing label */ -#define RAW_PART 2 /* partition containing whole disk */ -#define SWAP_PART 1 /* partition normally containing swap */ - -#ifndef LOCORE -struct disklabel { - u_int32_t d_magic; /* the magic number */ - u_int16_t d_type; /* drive type */ - u_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: */ - u_int32_t d_secsize; /* # of bytes per sector */ - u_int32_t d_nsectors; /* # of data sectors per track */ - u_int32_t d_ntracks; /* # of tracks per cylinder */ - u_int32_t d_ncylinders; /* # of data cylinders per unit */ - u_int32_t d_secpercyl; /* # of data sectors per cylinder */ - u_int32_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. - */ - u_int16_t d_sparespertrack; /* # of spare sectors per track */ - u_int16_t d_sparespercyl; /* # of spare sectors per cylinder */ - /* - * Alternate cylinders include maintenance, replacement, configuration - * description areas, etc. - */ - u_int32_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. - */ - u_int16_t d_rpm; /* rotational speed */ - u_int16_t d_interleave; /* hardware sector interleave */ - u_int16_t d_trackskew; /* sector 0 skew, per track */ - u_int16_t d_cylskew; /* sector 0 skew, per cylinder */ - u_int32_t d_headswitch; /* head switch time, usec */ - u_int32_t d_trkseek; /* track-to-track seek, usec */ - u_int32_t d_flags; /* generic flags */ -#define NDDATA 5 - u_int32_t d_drivedata[NDDATA]; /* drive-type specific information */ -#define NSPARE 5 - u_int32_t d_spare[NSPARE]; /* reserved for future use */ - u_int32_t d_magic2; /* the magic number (again) */ - u_int16_t d_checksum; /* xor of data incl. partitions */ - - /* file system and partition information: */ - u_int16_t d_npartitions; /* number of partitions in following */ - u_int32_t d_bbsize; /* size of boot area at sn0, bytes */ - u_int32_t d_sbsize; /* max size of fs superblock, bytes */ - struct partition { /* the partition table */ - u_int32_t p_size; /* number of sectors in partition */ - u_int32_t p_offset; /* starting sector */ - u_int32_t p_fsize; /* file system basic fragment size */ - u_int8_t p_fstype; /* file system type, see below */ - u_int8_t p_frag; /* file system fragments per block */ - union { - u_int16_t cpg; /* UFS: FS cylinders per group */ - u_int16_t sgs; /* LFS: FS segment shift */ - } __partition_u1; -#define p_cpg __partition_u1.cpg -#define p_sgs __partition_u1.sgs - } d_partitions[MAXPARTITIONS]; /* actually may be more */ -}; -#else /* LOCORE */ - /* - * offsets for asm boot files. - */ - .set d_secsize,40 - .set d_nsectors,44 - .set d_ntracks,48 - .set d_ncylinders,52 - .set d_secpercyl,56 - .set d_secperunit,60 - .set d_end_,276 /* size of disk label */ -#endif /* LOCORE */ - -/* d_type values: */ -#define DTYPE_SMD 1 /* SMD, XSMD; VAX hp/up */ -#define DTYPE_MSCP 2 /* MSCP */ -#define DTYPE_DEC 3 /* other DEC (rk, rl) */ -#define DTYPE_SCSI 4 /* SCSI */ -#define DTYPE_ESDI 5 /* ESDI interface */ -#define DTYPE_ST506 6 /* ST506 etc. */ -#define DTYPE_HPIB 7 /* CS/80 on HP-IB */ -#define DTYPE_HPFL 8 /* HP Fiber-link */ -#define DTYPE_FLOPPY 10 /* floppy */ -#define DTYPE_CCD 11 /* concatenated disk */ -#define DTYPE_VINUM 12 /* vinum volume */ -#define DTYPE_DOC2K 13 /* Msys DiskOnChip */ - -#if defined(PC98) && !defined(PC98_ATCOMPAT) -#define DSTYPE_SEC256 0x80 /* physical sector size=256 */ -#endif - -#ifdef DKTYPENAMES -static char *dktypenames[] = { - "unknown", - "SMD", - "MSCP", - "old DEC", - "SCSI", - "ESDI", - "ST506", - "HP-IB", - "HP-FL", - "type 9", - "floppy", - "CCD", - "Vinum", - "DOC2K", - NULL -}; -#define DKMAXTYPES (sizeof(dktypenames) / sizeof(dktypenames[0]) - 1) -#endif - -/* - * File system type and version. - * Used to interpret other file system-specific - * per-partition information. - */ -#define FS_UNUSED 0 /* unused */ -#define FS_SWAP 1 /* swap */ -#define FS_V6 2 /* Sixth Edition */ -#define FS_V7 3 /* Seventh Edition */ -#define FS_SYSV 4 /* System V */ -#define FS_V71K 5 /* V7 with 1K blocks (4.1, 2.9) */ -#define FS_V8 6 /* Eighth Edition, 4K blocks */ -#define FS_BSDFFS 7 /* 4.2BSD fast file system */ -#define FS_MSDOS 8 /* MSDOS file system */ -#define FS_BSDLFS 9 /* 4.4BSD log-structured file system */ -#define FS_OTHER 10 /* in use, but unknown/unsupported */ -#define FS_HPFS 11 /* OS/2 high-performance file system */ -#define FS_ISO9660 12 /* ISO 9660, normally CD-ROM */ -#define FS_BOOT 13 /* partition contains bootstrap */ -#define FS_VINUM 14 /* Vinum drive */ - -#ifdef DKTYPENAMES -static char *fstypenames[] = { - "unused", - "swap", - "Version 6", - "Version 7", - "System V", - "4.1BSD", - "Eighth Edition", - "4.2BSD", - "MSDOS", - "4.4LFS", - "unknown", - "HPFS", - "ISO9660", - "boot", - "vinum", - NULL -}; -#define FSMAXTYPES (sizeof(fstypenames) / sizeof(fstypenames[0]) - 1) -#endif - -/* - * flags shared by various drives: - */ -#define D_REMOVABLE 0x01 /* removable media */ -#define D_ECC 0x02 /* supports ECC */ -#define D_BADSECT 0x04 /* supports bad sector forw. */ -#define D_RAMDISK 0x08 /* disk emulator */ -#define D_CHAIN 0x10 /* can do back-back transfers */ - -/* - * Drive data for SMD. - */ -#define d_smdflags d_drivedata[0] -#define D_SSE 0x1 /* supports skip sectoring */ -#define d_mindist d_drivedata[1] -#define d_maxdist d_drivedata[2] -#define d_sdist d_drivedata[3] - -/* - * Drive data for ST506. - */ -#define d_precompcyl d_drivedata[0] -#define d_gap3 d_drivedata[1] /* used only when formatting */ - -/* - * Drive data for SCSI. - */ -#define d_blind d_drivedata[0] - -#ifndef LOCORE -/* - * Structure used to perform a format or other raw operation, returning - * data and/or register values. Register identification and format - * are device- and driver-dependent. - */ -struct format_op { - char *df_buf; - int df_count; /* value-result */ - daddr_t df_startblk; - int df_reg[8]; /* result */ -}; - -/* - * Structure used internally to retrieve information about a partition - * on a disk. - */ -struct partinfo { - struct disklabel *disklab; - struct partition *part; -}; - -/* DOS partition table -- located in boot block */ - -#if defined(PC98) && !defined(PC98_ATCOMPAT) -#define DOSBBSECTOR 0 /* DOS boot block relative sector number */ -#define DOSLABELSECTOR 1 /* 0: 256b/s, 1: 512b/s */ -#define DOSPARTOFF 0 -#define NDOSPART 16 -#define DOSPTYP_386BSD 0x94 /* 386BSD partition type */ -#define MBR_PTYPE_FreeBSD 0x94 /* FreeBSD partition type */ - -struct dos_partition { - unsigned char dp_mid; -#define DOSMID_386BSD (0x14|0x80) /* 386bsd|bootable */ - unsigned char dp_sid; -#define DOSSID_386BSD (0x44|0x80) /* 386bsd|active */ - unsigned char dp_dum1; - unsigned char dp_dum2; - unsigned char dp_ipl_sct; - unsigned char dp_ipl_head; - unsigned short dp_ipl_cyl; - unsigned char dp_ssect; /* starting sector */ - unsigned char dp_shd; /* starting head */ - unsigned short dp_scyl; /* starting cylinder */ - unsigned char dp_esect; /* end sector */ - unsigned char dp_ehd; /* end head */ - unsigned short dp_ecyl; /* end cylinder */ - unsigned char dp_name[16]; -}; - -#else /* IBMPC */ -#define DOSBBSECTOR 0 /* DOS boot block relative sector number */ -#define DOSPARTOFF 446 -#define NDOSPART 4 -#define DOSPTYP_386BSD 0xa5 /* 386BSD partition type */ - -struct dos_partition { - unsigned char dp_flag; /* bootstrap flags */ - unsigned char dp_shd; /* starting head */ - unsigned char dp_ssect; /* starting sector */ - unsigned char dp_scyl; /* starting cylinder */ - unsigned char dp_typ; /* partition type */ - unsigned char dp_ehd; /* end head */ - unsigned char dp_esect; /* end sector */ - unsigned char dp_ecyl; /* end cylinder */ - u_int32_t dp_start; /* absolute starting sector number */ - u_int32_t dp_size; /* partition size in sectors */ -}; -#endif - -#define DPSECT(s) ((s) & 0x3f) /* isolate relevant bits of sector */ -#define DPCYL(c, s) ((c) + (((s) & 0xc0)<<2)) /* and those that are cylinder */ - -/* - * Disk-specific ioctls. - */ - /* get and set disklabel; DIOCGPART used internally */ -#define DIOCGDINFO _IOR('d', 101, struct disklabel)/* get */ -#define DIOCSDINFO _IOW('d', 102, struct disklabel)/* set */ -#define DIOCWDINFO _IOW('d', 103, struct disklabel)/* set, update disk */ -#define DIOCGPART _IOW('d', 104, struct partinfo) /* get partition */ - -#define DIOCWLABEL _IOW('d', 109, int) /* write en/disable label */ - -#ifdef _KERNEL - -/* - * XXX encoding of disk minor numbers, should be elsewhere. - * - * See <sys/reboot.h> for a possibly better encoding. - * - * "cpio -H newc" can be used to back up device files with large minor - * numbers (but not ones >= 2^31). Old cpio formats and all tar formats - * don't have enough bits, and cpio and tar don't notice the lossage. - * There are also some sign extension bugs. - */ - -/* - 3 2 1 0 - 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 9 8 7 6 5 4 3 2 1 0 - _________________________________________________________________ - | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - ----------------------------------------------------------------- - | TYPE |UNIT_2 | SLICE | MAJOR? | UNIT |PART | - ----------------------------------------------------------------- -*/ -#define dkmakeminor(unit, slice, part) \e - (((slice) << 16) | (((unit) & 0x1e0) << 16) | \e - (((unit) & 0x1f) << 3) | (part)) -static __inline dev_t -dkmodpart(dev_t dev, int part) -{ - return (makedev(major(dev), (minor(dev) & ~7) | part)); -} - -static __inline dev_t -dkmodslice(dev_t dev, int slice) -{ - return (makedev(major(dev), (minor(dev) & ~0x1f0000) | (slice << 16))); -} - -#define dkpart(dev) (minor(dev) & 7) -#define dkslice(dev) ((minor(dev) >> 16) & 0x1f) -#define dktype(dev) ((minor(dev) >> 25) & 0x7f) - -static __inline u_int -dkunit(dev_t dev) -{ - return (((minor(dev) >> 16) & 0x1e0) | ((minor(dev) >> 3) & 0x1f)); -} - -struct buf; -struct buf_queue_head; - -int bounds_check_with_label(struct buf *bp, struct disklabel *lp, - int wlabel); -void diskerr(struct buf *bp, char *what, int pri, int blkdone, - struct disklabel *lp); -void disksort(struct buf *ap, struct buf *bp); -u_int dkcksum struct disklabel *lp); -char *readdisklabel(dev_t dev, struct disklabel *lp); -void bufqdisksort(struct buf_queue_head *ap, struct buf *bp); -int setdisklabel(struct disklabel *olp, struct disklabel *nlp, - u_long openmask); -int writedisklabel(dev_t dev, struct disklabel *lp); -#ifdef __alpha__ -void alpha_fix_srm_checksum(struct buf *bp); -#endif - -#endif /* _KERNEL */ - -#endif /* LOCORE */ - -#ifndef _KERNEL -__BEGIN_DECLS -struct disklabel *getdiskbyname(const char *); -__END_DECLS -#endif - -#endif /* !_SYS_DISKLABEL_H_ */ -.Ed -.Sh SEE ALSO -.Xr disktab 5 , -.Xr disklabel 8 diff --git a/sbin/disklabel/disklabel.8 b/sbin/disklabel/disklabel.8 deleted file mode 100644 index 00dc6d3..0000000 --- a/sbin/disklabel/disklabel.8 +++ /dev/null @@ -1,976 +0,0 @@ -.\" Copyright (c) 1987, 1988, 1991, 1993 -.\" The Regents of the University of California. All rights reserved. -.\" -.\" This code is derived from software contributed to Berkeley by -.\" Symmetric Computer Systems. -.\" -.\" 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 acknowledgment: -.\" 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. -.\" -.\" @(#)disklabel.8 8.2 (Berkeley) 4/19/94 -.\" $FreeBSD$ -.\" -.Dd March 15, 2003 -.Dt DISKLABEL 8 -.Os -.Sh NAME -.Nm disklabel -.Nd read and write disk pack label -.Sh SYNOPSIS -.Nm -.Op Fl r -.Ar disk -.Nm -.Fl w -.Op Fl nr -.Op Fl m Ar machine -.Ar disk type -.Op Ar packid -.Nm -.Fl e -.Op Fl nr -.Op Fl m Ar machine -.Ar disk -.Nm -.Fl R -.Op Fl nr -.Op Fl m Ar machine -.Ar disk protofile -.Pp -.Nm -.Fl B -.Op Fl b Ar boot -.Op Fl m Ar machine -.Ar disk -.Nm -.Fl w B -.Op Fl n -.Op Fl b Ar boot -.Op Fl m Ar machine -.Ar disk type -.Op Ar packid -.Nm -.Fl R B -.Op Fl n -.Op Fl b Ar boot -.Op Fl m Ar machine -.Ar disk protofile -.Sh DESCRIPTION -The -.Nm -utility -installs, examines or modifies the label on a disk drive or pack. -When writing -the label, it can be used to change the drive identification, the disk -partitions on the drive, or to replace a damaged label. -There are several forms -of the command that read (display), install, or edit the label on a disk. -In addition, -.Nm -can install bootstrap code. -.Ss Raw or In-Core Label -The disk label resides close to or at the beginning of each disk slice. -For faster access, the kernel maintains a copy in core at all times. -By default, most -.Nm -access the in-core copy of the label. -To access the raw (on-disk) copy, use the -.Fl r -option. -This option allows a label to be installed on a disk without kernel -support for a label, such as when labels are first installed on a system; it -must be used when first installing a label on a disk. -The specific effect of -.Fl r -is described under each command. -.Ss Disk Device Name -All -.Nm -forms require a disk device name, which should always be the raw -device name representing the disk or slice. -For example, -.Pa da0 -represents the entire disk regardless of any -.Tn DOS -partitioning, -and -.Pa da0s1 -represents a slice. -Some devices, most notably -.Xr ccd 4 , -require that the -.Dq whole-disk -(or -.Ql c ) -partition be specified. -For example, -.Pa ccd0c . -When specifying the device, -the -.Pa /dev/ -path prefix may be omitted; -the -.Nm -utility will automatically prepend it. -.Ss Reading the Disk Label -To examine the label on a disk drive, use -.Nm -without options: -.Pp -.Nm -.Op Fl r -.Ar disk -.Pp -.Ar disk -represents the raw disk in question, and may be in the form -.Pa da0 -or -.Pa /dev/da0c . -It will display all of the parameters associated with the drive and its -partition layout. -Unless the -.Fl r -option is given, -the kernel's in-core copy of the label is displayed; -if the disk has no label, or the partition types on the disk are incorrect, -the kernel may have constructed or modified the label. -If the -.Fl r -option is given, -.Nm -reads the label from the raw disk and displays it. -Both versions are usually -identical except in the case where a label has not yet been initialized or -is corrupt. -.Ss Writing a Standard Label -To write a standard label, use the form -.Pp -.Nm -.Fl w -.Op Fl nr -.Op Fl m Ar machine -.Ar disk type -.Op Ar packid -.Pp -The required arguments to -.Nm -are the drive to be labeled, and the drive type as described in the -.Xr disktab 5 -file. -The drive parameters and partitions are taken from that file. -If different disks of the same physical type are to have different partitions, -it will be necessary to have separate -.Xr disktab 5 -entries describing each, or to edit -the label after installation as described below. -The optional argument is a -pack identification string, up to 16 characters long. -The -.Ar packid -must be quoted if it contains blanks. -.Pp -If the -.Fl m -option is given, then label will be written so that -it is understood by the target -.Ar machine ; -defaults to the current hardware architecture. -.Pp -If -.Fl n -is used, no data will be written to the device, and instead the -disk label that would have been written will be printed to standard output. -.Pp -If the -.Fl r -option is given, the disk sectors containing the label and bootstrap -will be written directly. -A side-effect of this is that any existing bootstrap code will be overwritten -and the disk rendered unbootable. -See the boot options below for a method of -writing the and the bootstrap at the same time. -If -.Fl r -is not specified, -the existing label will be updated via the in-core copy, and any bootstrap -code will be unaffected. -If the disk does not already have a label, the -.Fl r -option must be used. -In either case, the kernel's in-core label is replaced. -.Pp -For a virgin disk that is not known to -.Xr disktab 5 , -.Ar type -can be specified as -.Cm auto . -In this case, the driver is requested to produce a virgin label for the -disk. -This might or might not be successful, depending on whether the -driver for the disk is able to get the required data without reading -anything from the disk at all. -It will likely succeed for all -.Tn SCSI -disks, most -.Tn IDE -disks, and -.Cm vnode -type memory disks -.Pq Xr md 4 . -Writing a label to the -disk is the only supported operation, and the -.Ar disk -itself must be provided as the canonical name, i.e., not as a full -path name. -.Pp -For most harddisks, a label based on percentages for most partitions (and -one partition with a size of -.Ql * ) -will produce a reasonable configuration. -.Pp -PC-based systems have special requirements in order for the -.Tn BIOS -to properly recognize a -.Fx -disk label. -Older systems may require what is known as a -.Dq dangerously-dedicated -disk label, which creates a fake -.Tn DOS -partition to work around problems older -.Tn BIOS Ns es -have with modern disk geometries. -On newer systems, a normal -.Tn DOS -partition should generally be created using -.Xr fdisk 8 , -and then a -.Fx -disk label within that slice. -This is described later on in this page. -.Pp -Installing a new disk label does not in of itself allow the system to boot -a kernel using that label. -Boot blocks must also be installed, which is -described later on in this manual page. -.Ss Editing an Existing Disk Label -To edit an existing disk label, use the form -.Pp -.Nm -.Fl e -.Op Fl nr -.Op Fl m Ar machine -.Ar disk -.Pp -This command reads the label from the in-core kernel copy, or directly from the -disk if the -.Fl r -option is also specified. -The label is written to a file in -.Tn ASCII -format, and then supplied to an editor for changes. -If no editor is specified in the -.Ev EDITOR -environment variable, -.Xr vi 1 -is used. -When the editor terminates, the label file is used to rewrite the disk label. -Existing bootstrap code is unchanged regardless of whether -.Fl r -was specified. -.Pp -If the -.Fl m -option is given, then the label will be written so that -it is understood by the target -.Ar machine ; -defaults to the current hardware architecture. -.Pp -If -.Fl n -is used, no data will be written to the device, and instead the -disk label that would have been written will be printed to standard output. -This is -useful to see how a partitioning scheme will work out for a specific disk. -.Ss Restoring a Disk Label From a File -To restore a disk label from a file, use the form -.Pp -.Nm -.Fl R -.Op Fl nr -.Op Fl m Ar machine -.Ar disk protofile -.Pp -.Nm -is capable of restoring a disk label that was previously saved in a file in -.Tn ASCII -format. -The prototype file used to create the label should be in the same format as that -produced when reading or editing a label. -Comments are delimited by -.Ql # -and newline. -As when writing a new label, any existing bootstrap code will be -clobbered if -.Fl r -is specified, and will be unaffected otherwise. -See the boot options below for a -method of restoring the label and writing the bootstrap at the same time. -.Pp -If the -.Fl m -option is given, then the label will be written so that -it is understood by the target -.Ar machine ; -defaults to the current hardware architecture. -.Pp -If -.Fl n -is used, no data will be written to the device, and instead the -disk label that would have been written will be printed to standard output. -This is -useful to see how a partitioning scheme will work out for a specific disk. -.Ss Installing Bootstraps -The final three forms of -.Nm -are used to install bootstrap code. -If a -.Dq dangerously-dedicated -disk is created for compatibility with older PC systems, -the raw disk name such as -.Pa da0 -should be specified. -If an existing slice should be labeled, -the slice name such as -.Pa da0s1 -should be specified, -and to make it bootable, -.Tn MBR -on the base disk should probably be updated; see -.Xr fdisk 8 . -.Pp -.Nm -.Fl B -.Op Fl b Ar boot -.Op Fl m Ar machine -.Ar disk -.Pp -This form installs the bootstrap only. -It does not change the disk label. -Never use this command on a base disk, such as -.Pa da0 , -unless the intent is to create a -.Dq dangerously-dedicated -disk. -This command is typically run on a slice such as -.Pa da0s1 . -.Pp -The -.Fl m -option should be specified if the label was -created for a different hardware architecture, -.Ar machine . -.Pp -.Nm -.Fl w B -.Op Fl n -.Op Fl b Ar boot -.Op Fl m Ar machine -.Ar disk type -.Op Ar packid -.Pp -This form corresponds to the -.Dq "write label" -command described above. -In addition to writing a new volume label, it also installs the bootstrap. -If run on a base disk, this command will create a -.Dq dangerously-dedicated -label. -This command is normally run on a slice rather than a base disk. -.Pp -If the -.Fl m -option is given, then the label and bootstrap will be written so that -they are understood by the target -.Ar machine ; -defaults to the current hardware architecture. -.Pp -If -.Fl n -is used, no data will be written to the device, and instead the -disk label that would have been written will be printed to standard output. -.Pp -.Nm -.Fl R B -.Op Fl n -.Op Fl b Ar boot -.Op Fl m Ar machine -.Ar disk protofile -.Pp -This form corresponds to the -.Dq "restore label" -command described above. -In addition to restoring the volume label, it also installs the bootstrap. -If run on a base disk, this command will create a -.Dq dangerously-dedicated -label. -This command is normally run on a slice rather than a base disk. -.Pp -The bootstrap commands always access the disk directly, so it is not necessary -to specify the -.Fl r -option. -.Pp -If the -.Fl m -option is given, then the label and bootstrap will be written so that -they are understood by the target -.Ar machine ; -defaults to the current hardware architecture. -.Pp -If -.Fl n -is used, no data will be written to the device, and instead the -disk label that would have been written will be printed to standard output. -.Pp -The bootstrap code is comprised of two boot programs compiled into a single -.Pa /boot/boot -image. -An alternative boot image may be specified with the -.Fl b -option. -.Ss Initializing/Formatting a Bootable Disk From Scratch -To initialize a disk from scratch, the following sequence is recommended. -Please note that this will wipe everything that was previously on the disk, -including any -.No non- Ns Fx -slices. -.Bl -enum -.It -Use -.Xr fdisk 8 -to initialize the hard disk, and create a slice table, referred to -as the -.Dq "partition table" -in -.Tn DOS . -.It -Use -.Nm -to define partitions on -.Fx -slices created in the previous step. -.It -Finally use -.Xr newfs 8 -to create file systems on new partitions. -.El -.Pp -A typical partitioning scheme would be to have an -.Ql a -partition -of approximately 128MB to hold the root file system, a -.Ql b -partition for -swap, a -.Ql d -partition for -.Pa /var -(usually 128MB), an -.Ql e -partition -for -.Pa /var/tmp -(usually 128MB), an -.Ql f -partition for -.Pa /usr -(usually around 2GB), -and finally a -.Ql g -partition for -.Pa /home -(usually all remaining space). -Your mileage may vary. -.Pp -.Nm fdisk Fl BI Pa da0 -.Pp -.Nm -.Fl w B -.Pa da0s1 -.Cm auto -.Pp -.Nm -.Fl e -.Pa da0s1 -.Sh FILES -.Bl -tag -width ".Pa /etc/disktab" -compact -.It Pa /boot/boot -Default boot image. -.It Pa /etc/disktab -Disk description file. -.El -.Sh SAVED FILE FORMAT -The -.Nm -utility -uses an -.Tn ASCII -version of the label when examining, editing, or restoring a disk -label. -The format is: -.Bd -literal -offset 4n -# /dev/da1c: -type: SCSI -disk: da0s1 -label: -flags: -bytes/sector: 512 -sectors/track: 51 -tracks/cylinder: 19 -sectors/cylinder: 969 -cylinders: 1211 -sectors/unit: 1173930 -rpm: 3600 -interleave: 1 -trackskew: 0 -cylinderskew: 0 -headswitch: 0 # milliseconds -track-to-track seek: 0 # milliseconds -drivedata: 0 - -8 partitions: -# size offset fstype [fsize bsize bps/cpg] - a: 81920 0 4.2BSD 1024 8192 16 # (Cyl. 0 - 84*) - b: 160000 81920 swap # (Cyl. 84* - 218*) - c: 1173930 0 unused 0 0 # (Cyl. 0 - 1211*) - h: 962010 211920 vinum # (Cyl. 218*- 1211*) -.Ed -.Pp -Lines starting with a -.Ql # -mark are comments. -Most of the other specifications are no longer used. -The ones which must still be set correctly are: -.Pp -.Bl -inset -.It Ar label -is an optional label, set by the -.Ar packid -option when writing a label. -.It Ar flags -may be -.Cm removable , ecc -or -.Cm badsect . -.Cm removable -is set for removable media drives, but no current -.Fx -driver evaluates this -flag. -.Cm ecc -is no longer supported; -.Cm badsect -specifies that the drive can perform bad sector remapping. -.It Ar sectors/unit -describes the total size of the disk. -This value must be correct. -.It Ar "the partition table" -is the -.Ux -partition table, not the -.Tn DOS -partition table described in -.Xr fdisk 8 . -.El -.Pp -The partition table can have up to 8 entries. -It contains the following information: -.Bl -tag -width indent -.It Ar # -The partition identifier is a single letter in the range -.Ql a -to -.Ql h . -By convention, partition -.Ql c -is reserved to describe the entire disk. -.It Ar size -The size of the partition in sectors, -.Cm K -(kilobytes - 1024), -.Cm M -(megabytes - 1024*1024), -.Cm G -(gigabytes - 1024*1024*1024), -.Cm % -(percentage of free space -.Em after -removing any fixed-size partitions other than partition -.Ql c ) , -or -.Cm * -(all remaining free space -.Em after -fixed-size and percentage partitions). -For partition -.Ql c , -a size of -.Cm * -indicates the entire disk. -Lowercase versions of -.Cm K , M , -and -.Cm G -are allowed. -Size and type should be specifed without any spaces between them. -.Pp -Example: 2097152, 1G, 1024M and 1048576K are all the same size -(assuming 512-byte sectors). -.It Ar offset -The offset of the start of the partition from the beginning of the -drive in sectors, or -.Cm * -to have -.Nm -calculate the correct offset to use (the end of the previous partition plus -one, ignoring partition -.Ql c . -For partition -.Ql c , -.Cm * -will be interpreted as an offset of 0. -.It Ar fstype -Describes the purpose of the partition. -The example shows all currently used partition types. -For -.Tn UFS -file systems and -.Xr ccd 4 -partitions, use type -.Cm 4.2BSD . -For Vinum drives, use type -.Cm vinum . -Other common types are -.Cm swap -and -.Cm unused . -By convention, partition -.Ql c -represents the entire slice and should be of type -.Cm unused , -though -.Nm -does not enforce this convention. -The -.Nm -utility -also knows about a number of other partition types, -none of which are in current use. -(See the definitions starting with -.Dv FS_UNUSED -in -.In sys/disklabel.h -for more details.) -.It Ar fsize -For -.Cm 4.2BSD -and -.Tn LFS -file systems only, the fragment size. -Defaults to 1024 for partitions smaller than 1GB, -4096 for partitions 1GB or larger. -.It Ar bsize -For -.Cm 4.2BSD -and -.Tn LFS -file systems only, the block size. -Defaults to 8192 for partitions smaller than 1GB, -16384 for partitions 1GB or larger. -.It Ar bps/cpg -For -.Cm 4.2BSD -file systems, the number of cylinders in a cylinder group. -For -.Tn LFS -file systems, the segment shift value. -Defaults to 16 for partitions smaller than 1GB, -64 for partitions 1GB or larger. -.El -.Pp -The remainder of the line is a comment and shows the cylinder allocations based -on the obsolete (but possibly correct) geometry information about the drive. -The asterisk -.Pq Ql * -indicates that the partition does not begin or end exactly on a -cylinder boundary. -.Sh EXAMPLES -.Dl "disklabel da0s1" -.Pp -Display the in-core label for the first slice of the -.Pa da0 -disk, as obtained via -.Pa /dev/da0s1 . -(If the disk is -.Dq dangerously-dedicated , -the base disk name should be specified, such as -.Pa da0 . ) -.Pp -.Dl "disklabel da0s1 > savedlabel" -.Pp -Save the in-core label for -.Pa da0s1 -into the file -.Pa savedlabel . -This file can be used with the -.Fl R -option to restore the label at a later date. -.Pp -.Dl "disklabel -w -r /dev/da0s1 da2212 foo" -.Pp -Create a label for -.Pa da0s1 -based on information for -.Dq da2212 -found in -.Pa /etc/disktab . -Any existing bootstrap code will be clobbered -and the disk rendered unbootable. -.Pp -.Dl "disklabel -e -r da0s1" -.Pp -Read the on-disk label for -.Pa da0s1 , -edit it, and reinstall in-core as well as on-disk. -Existing bootstrap code is unaffected. -.Pp -.Dl "disklabel -e -r -n da0s1" -.Pp -Read the on-disk label for -.Pa da0s1 , -edit it, and display what the new label would be (in sectors). -It does -.Em not -install the new label either in-core or on-disk. -.Pp -.Dl "disklabel -r -w da0s1 auto" -.Pp -Try to auto-detect the required information from -.Pa da0s1 , -and write a new label to the disk. -Use another -.Nm Fl e -command to edit the -partitioning and file system information. -.Pp -.Dl "disklabel -R da0s1 savedlabel" -.Pp -Restore the on-disk and in-core label for -.Pa da0s1 -from information in -.Pa savedlabel . -Existing bootstrap code is unaffected. -.Pp -.Dl "disklabel -R -n da0s1 label_layout" -.Pp -Display what the label would be for -.Pa da0s1 -using the partition layout in -.Pa label_layout . -This is useful for determining how much space would be alloted for various -partitions with a labelling scheme using -.Cm % Ns -based -or -.Cm * -partition sizes. -.Pp -.Dl "disklabel -B da0s1" -.Pp -Install a new bootstrap on -.Pa da0s1 . -The boot code comes from -.Pa /boot/boot . -On-disk and in-core labels are unchanged. -.Pp -.Dl "disklabel -w -B /dev/da0s1 -b newboot da2212" -.Pp -Install a new label and bootstrap. -The label is derived from -.Xr disktab 5 -information for -.Dq da2212 , -and installed both in-core and on-disk. -The bootstrap code comes from the file -.Pa newboot -in the current working directory. -.Bd -literal -offset indent -dd if=/dev/zero of=/dev/da0 bs=512 count=32 -fdisk -BI da0 -dd if=/dev/zero of=/dev/da0s1 bs=512 count=32 -disklabel -w -B da0s1 auto -disklabel -e da0s1 -.Ed -.Pp -Completely wipe any prior information on the disk, creating a new bootable -disk with a -.Tn DOS -partition table containing one slice, covering the whole disk. -Initialize the label on this slice, -then edit it. -The -.Xr dd 1 -commands are optional, but may be necessary for some -.Tn BIOS Ns es -to properly -recognize the disk. -.Pp -This is an example disk label that uses some of the new partition size types -such as -.Cm % , M , G , -and -.Cm * , -which could be used as a source file for -.Dq Li "disklabel -R ad0s1c new_label_file" : -.Bd -literal -offset 4n -# /dev/ad0s1c: -type: ESDI -disk: ad0s1 -label: -flags: -bytes/sector: 512 -sectors/track: 63 -tracks/cylinder: 16 -sectors/cylinder: 1008 -cylinders: 40633 -sectors/unit: 40959009 -rpm: 3600 -interleave: 1 -trackskew: 0 -cylinderskew: 0 -headswitch: 0 # milliseconds -track-to-track seek: 0 # milliseconds -drivedata: 0 - -8 partitions: -# size offset fstype [fsize bsize bps/cpg] - a: 400M 0 4.2BSD 4096 16384 75 # (Cyl. 0 - 812*) - b: 1G * swap - c: * * unused - e: 204800 * 4.2BSD - f: 5g * 4.2BSD - g: * * 4.2BSD -.Ed -.Sh SEE ALSO -.Xr ccd 4 , -.Xr md 4 , -.Xr disklabel 5 , -.Xr disktab 5 , -.Xr boot0cfg 8 , -.Xr fdisk 8 , -.Xr vinum 8 -.Sh DIAGNOSTICS -The kernel device drivers will not allow the size of a disk partition -to be decreased or the offset of a partition to be changed while it is open. -Some device drivers create a label containing only a single large partition -if a disk is unlabeled; thus, the label must be written to the -.Ql a -partition of the disk while it is open. -This sometimes requires the desired label to be set in two steps, -the first one creating at least one other partition, -and the second one setting the label on the new partition -while shrinking the -.Ql a -partition. -.Pp -On some machines, the bootstrap code may not fit entirely in the area -allocated for it by some file systems. -As a result, -it may not be possible to have file systems on some partitions of a -.Dq bootable -disk. -When installing bootstrap code, -.Nm -checks for these cases. -If the installed boot code would overlap a partition of type -.Dv FS_UNUSED , -it is marked as type -.Dv FS_BOOT . -The -.Xr newfs 8 -utility will disallow creation of file systems on -.Dv FS_BOOT -partitions. -Conversely, if a partition has a type other than -.Dv FS_UNUSED -or -.Dv FS_BOOT , -.Nm -will not install bootstrap code that overlaps it. -.Sh BUGS -When a disk name is given without a full pathname, -the constructed device name uses the -.Ql c -partition. -.Pp -For the i386 architecture, the primary bootstrap sector contains -an embedded -.Em fdisk -table. -The -.Nm -utility takes care to not clobber it when installing a bootstrap only -.Pq Fl B , -or when editing an existing label -.Pq Fl e , -but it unconditionally writes the primary bootstrap program onto -the disk for -.Fl w -or -.Fl R , -thus replacing the -.Em fdisk -table by the dummy one in the bootstrap program. -This is only of -concern if the disk is fully dedicated, so that the -.Fx -disk label -starts at absolute block 0 on the disk. -.Pp -The -.Nm -utility -does not perform all possible error checking. -Warnings are given if partitions overlap, -if an absolute offset does not match the expected offset, -if the -.Ql c -partition does not start at 0 or does not cover the entire slice, -if a partition runs past the end of the device, -and a number of other errors, -but no warning is given if space remains unused. diff --git a/sbin/disklabel/disklabel.c b/sbin/disklabel/disklabel.c deleted file mode 100644 index 3d393ac..0000000 --- a/sbin/disklabel/disklabel.c +++ /dev/null @@ -1,1581 +0,0 @@ -/* - * Copyright (c) 1994, 1995 Gordon W. Ross - * Copyright (c) 1994 Theo de Raadt - * All rights reserved. - * Copyright (c) 1987, 1993 - * The Regents of the University of California. All rights reserved. - * - * This code is derived from software contributed to Berkeley by - * Symmetric Computer Systems. - * - * 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. - * This product includes software developed by Theo de Raadt. - * 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. - * - * from: $NetBSD: disksubr.c,v 1.13 2000/12/17 22:39:18 pk $ - */ - -#if 0 -#ifndef lint -static const char copyright[] = -"@(#) Copyright (c) 1987, 1993\n\ - The Regents of the University of California. All rights reserved.\n"; -#endif /* not lint */ - -#ifndef lint -static char sccsid[] = "@(#)disklabel.c 8.2 (Berkeley) 1/7/94"; -/* from static char sccsid[] = "@(#)disklabel.c 1.2 (Symmetric) 11/28/85"; */ -#endif /* not lint */ -#endif -#include <sys/cdefs.h> -__FBSDID("$FreeBSD$"); - -#include <sys/param.h> -#include <sys/file.h> -#include <sys/stat.h> -#include <sys/wait.h> -#include <sys/disk.h> -#define DKTYPENAMES -#define FSTYPENAMES -#include <sys/disklabel.h> - -#include <sys/diskmbr.h> -#if (DOSPARTOFF != 446 || NDOSPART != 4 || DOSPTYP_386BSD != 0xa5) -#error <sys/diskmbr.h> has changed -#else -#define I386_DOSPARTOFF 446 -#define I386_NDOSPART 4 -#define I386_DOSPTYP_386BSD 0xa5 -#endif -#undef DOSPARTOFF -#undef NDOSPART -#undef DOSPTYP_386BSD - -#include <sys/diskpc98.h> -#if (DOSPARTOFF != 0 || NDOSPART != 16 || DOSPTYP_386BSD != 0x94) -#error <sys/diskpc98.h> has changed -#else -#define PC98_DOSPARTOFF 0 -#define PC98_NDOSPART 16 -#define PC98_DOSPTYP_386BSD 0x94 -#endif -#undef DOSPARTOFF -#undef NDOSPART -#undef DOSPTYP_386BSD - -#define IS_PC98 (arch->mach == MACH_PC98) -#define DOSPARTOFF (IS_PC98 ? PC98_DOSPARTOFF : I386_DOSPARTOFF) -#define NDOSPART (IS_PC98 ? PC98_NDOSPART : I386_NDOSPART) -#define DOSPTYP_386BSD (IS_PC98 ? PC98_DOSPTYP_386BSD : I386_DOSPTYP_386BSD) - -#include <unistd.h> -#include <string.h> -#include <stdio.h> -#include <stdlib.h> -#include <signal.h> -#include <stdarg.h> -#include <ctype.h> -#include <err.h> -#include <errno.h> - -#include "pathnames.h" - -/* - * Disklabel: read and write disklabels. - * The label is usually placed on one of the first sectors of the disk. - * Many machines also place a bootstrap in the same area, - * in which case the label is embedded in the bootstrap. - * The bootstrap source must leave space at the proper offset - * for the label on such machines. - */ - -#ifndef BBSIZE -#define BBSIZE 8192 /* size of boot area, with label */ -#endif - -/* FIX! These are too low, but are traditional */ -#define DEFAULT_NEWFS_BLOCK 8192U -#define DEFAULT_NEWFS_FRAG 1024U -#define DEFAULT_NEWFS_CPG 16U - -#define BIG_NEWFS_BLOCK 16384U -#define BIG_NEWFS_FRAG 2048U -#define BIG_NEWFS_CPG 64U - -void makelabel(const char *, const char *, struct disklabel *); -int writelabel(int, void *, struct disklabel *); -void l_perror(const char *); -struct disklabel *readlabel(int); -struct disklabel *makebootarea(void *, struct disklabel *, int); -void display(FILE *, const struct disklabel *); -int edit(struct disklabel *, int); -int editit(void); -char *skip(char *); -char *word(char *); -int getasciilabel(FILE *, struct disklabel *); -int getasciipartspec(char *, struct disklabel *, int, int); -int checklabel(struct disklabel *); -void Warning(const char *, ...) __printflike(1, 2); -void usage(void); -struct disklabel *getvirginlabel(void); - -#define DEFEDITOR _PATH_VI -#define streq(a,b) (strcmp(a,b) == 0) - -char *dkname; -char *specname; -char tmpfil[] = PATH_TMPFILE; - -char namebuf[BBSIZE], *np = namebuf; -struct disklabel lab; -int64_t bootarea[BBSIZE / 8]; -char blank[] = ""; -char unknown[] = "unknown"; - -#define MAX_PART ('z') -#define MAX_NUM_PARTS (1 + MAX_PART - 'a') -char part_size_type[MAX_NUM_PARTS]; -char part_offset_type[MAX_NUM_PARTS]; -int part_set[MAX_NUM_PARTS]; - -int installboot; /* non-zero if we should install a boot program */ -char *xxboot; /* primary boot */ -char boot0[MAXPATHLEN]; - -enum { - UNSPEC, EDIT, READ, RESTORE, WRITE, WRITEBOOT -} op = UNSPEC; - -enum { ARCH_I386, ARCH_ALPHA, ARCH_IA64 }; - -enum { MACH_I386, MACH_PC98 }; - -struct { - const char *name; - int arch; - int mach; - off_t label_sector; - off_t label_offset; -} arches[] = { - { "i386", ARCH_I386, MACH_I386, 1, 0 }, - { "pc98", ARCH_I386, MACH_PC98, 1, 0 }, - { "alpha", ARCH_ALPHA, ARCH_ALPHA, 0, 64 }, - { "ia64", ARCH_IA64, ARCH_IA64, 1, 0 }, -}, *arch; -#define NARCHES (int)(sizeof(arches) / sizeof(*arches)) - -int rflag; -int disable_write; /* set to disable writing to disk label */ - -int -main(int argc, char *argv[]) -{ - struct disklabel *lp; - FILE *t; - int ch, f = 0, error = 0, i; - char *name = 0; - - while ((ch = getopt(argc, argv, "Bb:em:nRrs:w")) != -1) - switch (ch) { - case 'B': - ++installboot; - break; - case 'b': - xxboot = optarg; - break; - case 'm': - for (i = 0; i < NARCHES && - strcmp(arches[i].name, optarg) != 0; - i++); - if (i == NARCHES) - errx(1, "%s: unknown architecture", - optarg); - arch = &arches[i]; - break; - case 'n': - disable_write = 1; - break; - case 'R': - if (op != UNSPEC) - usage(); - op = RESTORE; - break; - case 'e': - if (op != UNSPEC) - usage(); - op = EDIT; - break; - case 'r': - ++rflag; - break; - case 'w': - if (op != UNSPEC) - usage(); - op = WRITE; - break; - case '?': - default: - usage(); - } - argc -= optind; - argv += optind; - if (installboot) { - rflag++; - if (op == UNSPEC) - op = WRITEBOOT; - } else { - if (op == UNSPEC) - op = READ; - xxboot = 0; - } - if (argc < 1) - usage(); - - if (arch == NULL) { - for (i = 0; i < NARCHES; i++) - if (strcmp(arches[i].name, -#if defined(__i386__) -#ifdef PC98 - "pc98" -#else - "i386" -#endif -#elif defined(__alpha__) - "alpha" -#elif defined(__ia64__) - "ia64" -#else - "unknown" -#endif - ) == 0) { - arch = &arches[i]; - break; - } - if (i == NARCHES) - errx(1, "unsupported architecture"); - } - - dkname = argv[0]; - if (dkname[0] != '/') { - (void)sprintf(np, "%s%s%c", _PATH_DEV, dkname, 'a' + RAW_PART); - specname = np; - np += strlen(specname) + 1; - } else - specname = dkname; - f = open(specname, op == READ ? O_RDONLY : O_RDWR); - if (f < 0 && errno == ENOENT && dkname[0] != '/') { - (void)sprintf(specname, "%s%s", _PATH_DEV, dkname); - np = namebuf + strlen(specname) + 1; - f = open(specname, op == READ ? O_RDONLY : O_RDWR); - } - if (f < 0 && errno == EBUSY) { - /* lets try to get by with ioctls */ - f = open(specname, O_RDONLY); - } - if (f < 0) - err(4, "%s", specname); - - switch(op) { - - case UNSPEC: - break; - - case EDIT: - if (argc != 1) - usage(); - lp = readlabel(f); - error = edit(lp, f); - break; - - case READ: - if (argc != 1) - usage(); - lp = readlabel(f); - display(stdout, lp); - error = checklabel(lp); - break; - - case RESTORE: - if (argc != 2) - usage(); - if (!(t = fopen(argv[1], "r"))) - err(4, "%s", argv[1]); - if (!getasciilabel(t, &lab)) - exit(1); - lp = makebootarea(bootarea, &lab, f); - *lp = lab; - error = writelabel(f, bootarea, lp); - break; - - case WRITE: - if (argc == 3) { - name = argv[2]; - argc--; - } - if (argc != 2) - usage(); - makelabel(argv[1], name, &lab); - lp = makebootarea(bootarea, &lab, f); - *lp = lab; - if (checklabel(lp) == 0) - error = writelabel(f, bootarea, lp); - break; - - case WRITEBOOT: - { - struct disklabel tlab; - - lp = readlabel(f); - tlab = *lp; - if (argc == 2) - makelabel(argv[1], 0, &lab); - lp = makebootarea(bootarea, &lab, f); - *lp = tlab; - if (checklabel(lp) == 0) - error = writelabel(f, bootarea, lp); - break; - } - } - exit(error); -} - -/* - * Construct a prototype disklabel from /etc/disktab. - */ -void -makelabel(const char *type, const char *name, struct disklabel *lp) -{ - struct disklabel *dp; - - if (strcmp(type, "auto") == 0) - dp = getvirginlabel(); - else - dp = getdiskbyname(type); - if (dp == NULL) - errx(1, "%s: unknown disk type", type); - *lp = *dp; - bzero(lp->d_packname, sizeof(lp->d_packname)); - if (name) - (void)strncpy(lp->d_packname, name, sizeof(lp->d_packname)); -} - -int -writelabel(int f, void *boot, struct disklabel *lp) -{ - uint64_t *p, sum; - int i; - - if (disable_write) { - Warning("write to disk label supressed - label was as follows:"); - display(stdout, lp); - return (0); - } - - lp->d_magic = DISKMAGIC; - lp->d_magic2 = DISKMAGIC; - lp->d_checksum = 0; - lp->d_checksum = dkcksum(lp); - if (!rflag) { - if (ioctl(f, DIOCWDINFO, lp) < 0) { - l_perror("ioctl DIOCWDINFO"); - return (1); - } - return (0); - } - - /* - * First set the kernel disk label, - * then write a label to the raw disk. - * If the SDINFO ioctl fails because it is unimplemented, - * keep going; otherwise, the kernel consistency checks - * may prevent us from changing the current (in-core) - * label. - */ - if (ioctl(f, DIOCSDINFO, lp) < 0 && - errno != ENODEV && errno != ENOTTY) { - l_perror("ioctl DIOCSDINFO"); - return (1); - } - (void)lseek(f, (off_t)0, SEEK_SET); - - if (arch->arch == ARCH_ALPHA) { - /* - * Generate the bootblock checksum for the SRM console. - */ - for (p = (uint64_t *)boot, i = 0, sum = 0; i < 63; i++) - sum += p[i]; - p[63] = sum; - } - if (ioctl(f, DIOCBSDBB, &boot) == 0) - return (0); - if (write(f, boot, lp->d_bbsize) != (int)lp->d_bbsize) { - warn("write"); - return (1); - } - return (0); -} - -void -l_perror(const char *s) -{ - switch (errno) { - - case ESRCH: - warnx("%s: no disk label on disk;", s); - fprintf(stderr, "add \"-r\" to install initial label\n"); - break; - - case EINVAL: - warnx("%s: label magic number or checksum is wrong!", s); - fprintf(stderr, "(disklabel or kernel is out of date?)\n"); - break; - - case EBUSY: - warnx("%s: open partition would move or shrink", s); - break; - - case EXDEV: - warnx("%s: '%c' partition must start at beginning of disk", - s, 'a' + RAW_PART); - break; - - default: - warn((char *)NULL); - break; - } -} - -/* - * Fetch disklabel for disk. - * Use ioctl to get label unless -r flag is given. - */ -struct disklabel * -readlabel(int f) -{ - struct disklabel *lp; - - if (rflag) { - if (read(f, bootarea, BBSIZE) < BBSIZE) - err(4, "%s", specname); - for (lp = (struct disklabel *)bootarea; - lp <= (struct disklabel *) - ((char *)bootarea + BBSIZE - sizeof(*lp)); - lp = (struct disklabel *)((char *)lp + 16)) - if (lp->d_magic == DISKMAGIC && - lp->d_magic2 == DISKMAGIC) - break; - if (lp > (struct disklabel *) - ((char *)bootarea + BBSIZE - sizeof(*lp)) || - lp->d_magic != DISKMAGIC || lp->d_magic2 != DISKMAGIC || - dkcksum(lp) != 0) - errx(1, - "bad pack magic number (label is damaged, or pack is unlabeled)"); - } else { - lp = &lab; - if (ioctl(f, DIOCGDINFO, lp) < 0) - err(4, "ioctl DIOCGDINFO"); - } - return (lp); -} - -/* - * Construct a bootarea (d_bbsize bytes) in the specified buffer ``boot'' - * Returns a pointer to the disklabel portion of the bootarea. - */ -struct disklabel * -makebootarea(void *boot, struct disklabel *dp, int f) -{ - struct disklabel *lp; - char *p; - int b; - char *dkbasename; - struct stat sb; - uint64_t *bootinfo; - int n; - char *tmpbuf; - int i, found, dps; - - /* XXX */ - if (dp->d_secsize == 0) { - dp->d_secsize = DEV_BSIZE; - dp->d_bbsize = BBSIZE; - } - lp = (struct disklabel *) - ((char *)boot + (arch->label_sector * dp->d_secsize) + - arch->label_offset); - bzero((char *)lp, sizeof *lp); - /* - * If we are not installing a boot program but we are installing a - * label on disk then we must read the current bootarea so we don't - * clobber the existing boot. - */ - if (!installboot) { - if (rflag) { - if (read(f, boot, BBSIZE) < BBSIZE) - err(4, "%s", specname); - bzero((char *)lp, sizeof *lp); - } - return (lp); - } - /* - * We are installing a boot program. Determine the name(s) and - * read them into the appropriate places in the boot area. - */ - if (!xxboot) { - dkbasename = np; - if ((p = rindex(dkname, '/')) == NULL) - p = dkname; - else - p++; - while (*p && !isdigit(*p)) - *np++ = *p++; - *np++ = '\0'; - - if (!xxboot) { - (void)sprintf(boot0, "%s/boot", _PATH_BOOTDIR); - xxboot = boot0; - } - } - - b = open(xxboot, O_RDONLY); - if (b < 0) - err(4, "%s", xxboot); - if (fstat(b, &sb) != 0) - err(4, "%s", xxboot); - if (arch->arch == ARCH_I386) { - if (sb.st_size > BBSIZE) - errx(4, "%s too large", xxboot); - /* - * XXX Botch alert. - * The i386/PC98 has the so-called fdisk table embedded into the - * primary bootstrap. We take care to not clobber it, but - * only if it does already contain some data. (Otherwise, - * the xxboot provides a template.) - */ - if ((tmpbuf = (char *)malloc((int)dp->d_secsize)) == 0) - err(4, "%s", xxboot); - memcpy((void *)tmpbuf, (void *)boot, (int)dp->d_secsize); - - if (read(b, boot, BBSIZE) < 0) - err(4, "%s", xxboot); - - /* XXX: rely on some very precise overlaps in definitions */ - dps = IS_PC98 ? sizeof(struct pc98_partition) : - sizeof(struct dos_partition); - for (i = DOSPARTOFF, found = 0; - !found && i < (int)(DOSPARTOFF + NDOSPART * dps); - i++) - found = tmpbuf[i] != 0; - if (found) - memcpy((void *)&((char *)boot)[DOSPARTOFF], - (void *)&tmpbuf[DOSPARTOFF], - NDOSPART * dps); - free(tmpbuf); - } - - if (arch->arch == ARCH_ALPHA) { - if (sb.st_size > BBSIZE - dp->d_secsize) - errx(4, "%s too large", xxboot); - /* - * On the alpha, the primary bootstrap starts at the - * second sector of the boot area. The first sector - * contains the label and must be edited to contain the - * size and location of the primary bootstrap. - */ - n = read(b, (char *)boot + dp->d_secsize, - BBSIZE - dp->d_secsize); - if (n < 0) - err(4, "%s", xxboot); - bootinfo = (uint64_t *)((char *)boot + 480); - bootinfo[0] = (n + dp->d_secsize - 1) / dp->d_secsize; - bootinfo[1] = 1; /* start at sector 1 */ - bootinfo[2] = 0; /* flags (must be zero) */ - } - - (void)close(b); - /* - * Make sure no part of the bootstrap is written in the area - * reserved for the label. - */ - for (p = (char *)lp; p < (char *)lp + sizeof(struct disklabel); p++) - if (*p) - errx(2, "bootstrap doesn't leave room for disk label"); - return (lp); -} - -void -display(FILE *f, const struct disklabel *lp) -{ - int i, j; - const struct partition *pp; - - fprintf(f, "# %s:\n", specname); - if (lp->d_type < DKMAXTYPES) - fprintf(f, "type: %s\n", dktypenames[lp->d_type]); - else - fprintf(f, "type: %u\n", lp->d_type); - fprintf(f, "disk: %.*s\n", (int)sizeof(lp->d_typename), - lp->d_typename); - fprintf(f, "label: %.*s\n", (int)sizeof(lp->d_packname), - lp->d_packname); - fprintf(f, "flags:"); - if (lp->d_flags & D_REMOVABLE) - fprintf(f, " removeable"); - if (lp->d_flags & D_ECC) - fprintf(f, " ecc"); - if (lp->d_flags & D_BADSECT) - fprintf(f, " badsect"); - fprintf(f, "\n"); - fprintf(f, "bytes/sector: %lu\n", (u_long)lp->d_secsize); - fprintf(f, "sectors/track: %lu\n", (u_long)lp->d_nsectors); - fprintf(f, "tracks/cylinder: %lu\n", (u_long)lp->d_ntracks); - fprintf(f, "sectors/cylinder: %lu\n", (u_long)lp->d_secpercyl); - fprintf(f, "cylinders: %lu\n", (u_long)lp->d_ncylinders); - fprintf(f, "sectors/unit: %lu\n", (u_long)lp->d_secperunit); - fprintf(f, "rpm: %u\n", lp->d_rpm); - fprintf(f, "interleave: %u\n", lp->d_interleave); - fprintf(f, "trackskew: %u\n", lp->d_trackskew); - fprintf(f, "cylinderskew: %u\n", lp->d_cylskew); - fprintf(f, "headswitch: %lu\t\t# milliseconds\n", - (u_long)lp->d_headswitch); - fprintf(f, "track-to-track seek: %ld\t# milliseconds\n", - (u_long)lp->d_trkseek); - fprintf(f, "drivedata: "); - for (i = NDDATA - 1; i >= 0; i--) - if (lp->d_drivedata[i]) - break; - if (i < 0) - i = 0; - for (j = 0; j <= i; j++) - fprintf(f, "%lu ", (u_long)lp->d_drivedata[j]); - fprintf(f, "\n\n%u partitions:\n", lp->d_npartitions); - fprintf(f, - "# size offset fstype [fsize bsize bps/cpg]\n"); - pp = lp->d_partitions; - for (i = 0; i < lp->d_npartitions; i++, pp++) { - if (pp->p_size) { - fprintf(f, " %c: %8lu %8lu ", 'a' + i, - (u_long)pp->p_size, (u_long)pp->p_offset); - if (pp->p_fstype < FSMAXTYPES) - fprintf(f, "%8.8s", fstypenames[pp->p_fstype]); - else - fprintf(f, "%8d", pp->p_fstype); - switch (pp->p_fstype) { - - case FS_UNUSED: /* XXX */ - fprintf(f, " %5lu %5lu %5.5s ", - (u_long)pp->p_fsize, - (u_long)(pp->p_fsize * pp->p_frag), ""); - break; - - case FS_BSDFFS: - fprintf(f, " %5lu %5lu %5u ", - (u_long)pp->p_fsize, - (u_long)(pp->p_fsize * pp->p_frag), - pp->p_cpg); - break; - - case FS_BSDLFS: - fprintf(f, " %5lu %5lu %5d", - (u_long)pp->p_fsize, - (u_long)(pp->p_fsize * pp->p_frag), - pp->p_cpg); - break; - - default: - fprintf(f, "%20.20s", ""); - break; - } - fprintf(f, "\t# (Cyl. %4lu", - (u_long)(pp->p_offset / lp->d_secpercyl)); - if (pp->p_offset % lp->d_secpercyl) - putc('*', f); - else - putc(' ', f); - fprintf(f, "- %lu", - (u_long)((pp->p_offset + pp->p_size + - lp->d_secpercyl - 1) / - lp->d_secpercyl - 1)); - if (pp->p_size % lp->d_secpercyl) - putc('*', f); - fprintf(f, ")\n"); - } - } - fflush(f); -} - -int -edit(struct disklabel *lp, int f) -{ - int c, fd; - struct disklabel label; - FILE *fp; - - if ((fd = mkstemp(tmpfil)) == -1 || - (fp = fdopen(fd, "w")) == NULL) { - warnx("can't create %s", tmpfil); - return (1); - } - display(fp, lp); - fclose(fp); - for (;;) { - if (!editit()) - break; - fp = fopen(tmpfil, "r"); - if (fp == NULL) { - warnx("can't reopen %s for reading", tmpfil); - break; - } - bzero((char *)&label, sizeof(label)); - if (getasciilabel(fp, &label)) { - *lp = label; - if (writelabel(f, bootarea, lp) == 0) { - fclose(fp); - (void) unlink(tmpfil); - return (0); - } - } - fclose(fp); - printf("re-edit the label? [y]: "); fflush(stdout); - c = getchar(); - if (c != EOF && c != (int)'\n') - while (getchar() != (int)'\n') - ; - if (c == (int)'n') - break; - } - (void) unlink(tmpfil); - return (1); -} - -int -editit(void) -{ - int pid, xpid; - int locstat, omask; - const char *ed; - - omask = sigblock(sigmask(SIGINT)|sigmask(SIGQUIT)|sigmask(SIGHUP)); - while ((pid = fork()) < 0) { - if (errno == EPROCLIM) { - warnx("you have too many processes"); - return(0); - } - if (errno != EAGAIN) { - warn("fork"); - return(0); - } - sleep(1); - } - if (pid == 0) { - sigsetmask(omask); - setgid(getgid()); - setuid(getuid()); - if ((ed = getenv("EDITOR")) == (char *)0) - ed = DEFEDITOR; - execlp(ed, ed, tmpfil, (char *)0); - err(1, "%s", ed); - } - while ((xpid = wait(&locstat)) >= 0) - if (xpid == pid) - break; - sigsetmask(omask); - return(!locstat); -} - -char * -skip(char *cp) -{ - - while (*cp != '\0' && isspace(*cp)) - cp++; - if (*cp == '\0' || *cp == '#') - return (NULL); - return (cp); -} - -char * -word(char *cp) -{ - char c; - - while (*cp != '\0' && !isspace(*cp) && *cp != '#') - cp++; - if ((c = *cp) != '\0') { - *cp++ = '\0'; - if (c != '#') - return (skip(cp)); - } - return (NULL); -} - -/* - * Read an ascii label in from fd f, - * in the same format as that put out by display(), - * and fill in lp. - */ -int -getasciilabel(FILE *f, struct disklabel *lp) -{ - char *cp; - const char **cpp; - u_int part; - char *tp, line[BUFSIZ]; - u_long v; - int lineno = 0, errors = 0; - int i; - - bzero(&part_set, sizeof(part_set)); - bzero(&part_size_type, sizeof(part_size_type)); - bzero(&part_offset_type, sizeof(part_offset_type)); - lp->d_bbsize = BBSIZE; /* XXX */ - lp->d_sbsize = 0; /* XXX */ - while (fgets(line, sizeof(line) - 1, f)) { - lineno++; - if ((cp = index(line,'\n')) != 0) - *cp = '\0'; - cp = skip(line); - if (cp == NULL) - continue; - tp = index(cp, ':'); - if (tp == NULL) { - fprintf(stderr, "line %d: syntax error\n", lineno); - errors++; - continue; - } - *tp++ = '\0', tp = skip(tp); - if (streq(cp, "type")) { - if (tp == NULL) - tp = unknown; - cpp = dktypenames; - for (; cpp < &dktypenames[DKMAXTYPES]; cpp++) - if (*cpp && streq(*cpp, tp)) { - lp->d_type = cpp - dktypenames; - break; - } - if (cpp < &dktypenames[DKMAXTYPES]) - continue; - v = strtoul(tp, NULL, 10); - if (v >= DKMAXTYPES) - fprintf(stderr, "line %d:%s %lu\n", lineno, - "Warning, unknown disk type", v); - lp->d_type = v; - continue; - } - if (streq(cp, "flags")) { - for (v = 0; (cp = tp) && *cp != '\0';) { - tp = word(cp); - if (streq(cp, "removeable")) - v |= D_REMOVABLE; - else if (streq(cp, "ecc")) - v |= D_ECC; - else if (streq(cp, "badsect")) - v |= D_BADSECT; - else { - fprintf(stderr, - "line %d: %s: bad flag\n", - lineno, cp); - errors++; - } - } - lp->d_flags = v; - continue; - } - if (streq(cp, "drivedata")) { - for (i = 0; (cp = tp) && *cp != '\0' && i < NDDATA;) { - lp->d_drivedata[i++] = strtoul(cp, NULL, 10); - tp = word(cp); - } - continue; - } - if (sscanf(cp, "%lu partitions", &v) == 1) { - if (v == 0 || v > MAXPARTITIONS) { - fprintf(stderr, - "line %d: bad # of partitions\n", lineno); - lp->d_npartitions = MAXPARTITIONS; - errors++; - } else - lp->d_npartitions = v; - continue; - } - if (tp == NULL) - tp = blank; - if (streq(cp, "disk")) { - strncpy(lp->d_typename, tp, sizeof (lp->d_typename)); - continue; - } - if (streq(cp, "label")) { - strncpy(lp->d_packname, tp, sizeof (lp->d_packname)); - continue; - } - if (streq(cp, "bytes/sector")) { - v = strtoul(tp, NULL, 10); - if (v == 0 || (v % DEV_BSIZE) != 0) { - fprintf(stderr, - "line %d: %s: bad sector size\n", - lineno, tp); - errors++; - } else - lp->d_secsize = v; - continue; - } - if (streq(cp, "sectors/track")) { - v = strtoul(tp, NULL, 10); -#if (ULONG_MAX != 0xffffffffUL) - if (v == 0 || v > 0xffffffff) { -#else - if (v == 0) { -#endif - fprintf(stderr, "line %d: %s: bad %s\n", - lineno, tp, cp); - errors++; - } else - lp->d_nsectors = v; - continue; - } - if (streq(cp, "sectors/cylinder")) { - v = strtoul(tp, NULL, 10); - if (v == 0) { - fprintf(stderr, "line %d: %s: bad %s\n", - lineno, tp, cp); - errors++; - } else - lp->d_secpercyl = v; - continue; - } - if (streq(cp, "tracks/cylinder")) { - v = strtoul(tp, NULL, 10); - if (v == 0) { - fprintf(stderr, "line %d: %s: bad %s\n", - lineno, tp, cp); - errors++; - } else - lp->d_ntracks = v; - continue; - } - if (streq(cp, "cylinders")) { - v = strtoul(tp, NULL, 10); - if (v == 0) { - fprintf(stderr, "line %d: %s: bad %s\n", - lineno, tp, cp); - errors++; - } else - lp->d_ncylinders = v; - continue; - } - if (streq(cp, "sectors/unit")) { - v = strtoul(tp, NULL, 10); - if (v == 0) { - fprintf(stderr, "line %d: %s: bad %s\n", - lineno, tp, cp); - errors++; - } else - lp->d_secperunit = v; - continue; - } - if (streq(cp, "rpm")) { - v = strtoul(tp, NULL, 10); - if (v == 0 || v > USHRT_MAX) { - fprintf(stderr, "line %d: %s: bad %s\n", - lineno, tp, cp); - errors++; - } else - lp->d_rpm = v; - continue; - } - if (streq(cp, "interleave")) { - v = strtoul(tp, NULL, 10); - if (v == 0 || v > USHRT_MAX) { - fprintf(stderr, "line %d: %s: bad %s\n", - lineno, tp, cp); - errors++; - } else - lp->d_interleave = v; - continue; - } - if (streq(cp, "trackskew")) { - v = strtoul(tp, NULL, 10); - if (v > USHRT_MAX) { - fprintf(stderr, "line %d: %s: bad %s\n", - lineno, tp, cp); - errors++; - } else - lp->d_trackskew = v; - continue; - } - if (streq(cp, "cylinderskew")) { - v = strtoul(tp, NULL, 10); - if (v > USHRT_MAX) { - fprintf(stderr, "line %d: %s: bad %s\n", - lineno, tp, cp); - errors++; - } else - lp->d_cylskew = v; - continue; - } - if (streq(cp, "headswitch")) { - v = strtoul(tp, NULL, 10); - lp->d_headswitch = v; - continue; - } - if (streq(cp, "track-to-track seek")) { - v = strtoul(tp, NULL, 10); - lp->d_trkseek = v; - continue; - } - /* the ':' was removed above */ - if (*cp < 'a' || *cp > MAX_PART || cp[1] != '\0') { - fprintf(stderr, - "line %d: %s: Unknown disklabel field\n", lineno, - cp); - errors++; - continue; - } - - /* Process a partition specification line. */ - part = *cp - 'a'; - if (part >= lp->d_npartitions) { - fprintf(stderr, - "line %d: partition name out of range a-%c: %s\n", - lineno, 'a' + lp->d_npartitions - 1, cp); - errors++; - continue; - } - part_set[part] = 1; - - if (getasciipartspec(tp, lp, part, lineno) != 0) { - errors++; - break; - } - } - errors += checklabel(lp); - return (errors == 0); -} - -#define NXTNUM(n) do { \ - if (tp == NULL) { \ - fprintf(stderr, "line %d: too few numeric fields\n", lineno); \ - return (1); \ - } else { \ - cp = tp, tp = word(cp); \ - (n) = strtoul(cp, NULL, 10); \ - } \ -} while (0) - -/* retain 1 character following number */ -#define NXTWORD(w,n) do { \ - if (tp == NULL) { \ - fprintf(stderr, "line %d: too few numeric fields\n", lineno); \ - return (1); \ - } else { \ - char *tmp; \ - cp = tp, tp = word(cp); \ - (n) = strtoul(cp, &tmp, 10); \ - if (tmp) (w) = *tmp; \ - } \ -} while (0) - -/* - * Read a partition line into partition `part' in the specified disklabel. - * Return 0 on success, 1 on failure. - */ -int -getasciipartspec(char *tp, struct disklabel *lp, int part, int lineno) -{ - struct partition *pp; - char *cp; - const char **cpp; - u_long v; - - pp = &lp->d_partitions[part]; - cp = NULL; - - v = 0; - NXTWORD(part_size_type[part],v); - if (v == 0 && part_size_type[part] != '*') { - fprintf(stderr, - "line %d: %s: bad partition size\n", lineno, cp); - return (1); - } - pp->p_size = v; - - v = 0; - NXTWORD(part_offset_type[part],v); - if (v == 0 && part_offset_type[part] != '*' && - part_offset_type[part] != '\0') { - fprintf(stderr, - "line %d: %s: bad partition offset\n", lineno, cp); - return (1); - } - pp->p_offset = v; - if (tp == NULL) { - fprintf(stderr, "line %d: missing file system type\n", lineno); - return (1); - } - cp = tp, tp = word(cp); - for (cpp = fstypenames; cpp < &fstypenames[FSMAXTYPES]; cpp++) - if (*cpp && streq(*cpp, cp)) - break; - if (*cpp != NULL) { - pp->p_fstype = cpp - fstypenames; - } else { - if (isdigit(*cp)) - v = strtoul(cp, NULL, 10); - else - v = FSMAXTYPES; - if (v >= FSMAXTYPES) { - fprintf(stderr, - "line %d: Warning, unknown file system type %s\n", - lineno, cp); - v = FS_UNUSED; - } - pp->p_fstype = v; - } - - switch (pp->p_fstype) { - case FS_UNUSED: - /* - * allow us to accept defaults for - * fsize/frag/cpg - */ - if (tp) { - NXTNUM(pp->p_fsize); - if (pp->p_fsize == 0) - break; - NXTNUM(v); - pp->p_frag = v / pp->p_fsize; - } - /* else default to 0's */ - break; - - /* These happen to be the same */ - case FS_BSDFFS: - case FS_BSDLFS: - if (tp) { - NXTNUM(pp->p_fsize); - if (pp->p_fsize == 0) - break; - NXTNUM(v); - pp->p_frag = v / pp->p_fsize; - NXTNUM(pp->p_cpg); - } else { - /* - * FIX! poor attempt at adaptive - */ - /* 1 GB */ - if (pp->p_size < 1024*1024*1024 / lp->d_secsize) { - /* - * FIX! These are too low, but are traditional - */ - pp->p_fsize = DEFAULT_NEWFS_FRAG; - pp->p_frag = DEFAULT_NEWFS_BLOCK / - DEFAULT_NEWFS_FRAG; - pp->p_cpg = DEFAULT_NEWFS_CPG; - } else { - pp->p_fsize = BIG_NEWFS_FRAG; - pp->p_frag = BIG_NEWFS_BLOCK / - BIG_NEWFS_FRAG; - pp->p_cpg = BIG_NEWFS_CPG; - } - } - default: - break; - } - return (0); -} - -/* - * Check disklabel for errors and fill in - * derived fields according to supplied values. - */ -int -checklabel(struct disklabel *lp) -{ - struct partition *pp; - int i, errors = 0; - char part; - u_long total_size, total_percent, current_offset; - int seen_default_offset; - int hog_part; - int j; - struct partition *pp2; - - if (lp->d_secsize == 0) { - fprintf(stderr, "sector size 0\n"); - return (1); - } - if (lp->d_nsectors == 0) { - fprintf(stderr, "sectors/track 0\n"); - return (1); - } - if (lp->d_ntracks == 0) { - fprintf(stderr, "tracks/cylinder 0\n"); - return (1); - } - if (lp->d_ncylinders == 0) { - fprintf(stderr, "cylinders/unit 0\n"); - errors++; - } - if (lp->d_rpm == 0) - Warning("revolutions/minute 0"); - if (lp->d_secpercyl == 0) - lp->d_secpercyl = lp->d_nsectors * lp->d_ntracks; - if (lp->d_secperunit == 0) - lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders; - if (lp->d_bbsize == 0) { - fprintf(stderr, "boot block size 0\n"); - errors++; - } else if (lp->d_bbsize % lp->d_secsize) - Warning("boot block size %% sector-size != 0"); - if (lp->d_npartitions > MAXPARTITIONS) - Warning("number of partitions (%lu) > MAXPARTITIONS (%d)", - (u_long)lp->d_npartitions, MAXPARTITIONS); - - /* first allocate space to the partitions, then offsets */ - total_size = 0; /* in sectors */ - total_percent = 0; /* in percent */ - hog_part = -1; - /* find all fixed partitions */ - for (i = 0; i < lp->d_npartitions; i++) { - pp = &lp->d_partitions[i]; - if (part_set[i]) { - if (part_size_type[i] == '*') { - if (i == RAW_PART) { - pp->p_size = lp->d_secperunit; - } else { - if (hog_part != -1) - Warning("Too many '*' partitions (%c and %c)", - hog_part + 'a',i + 'a'); - else - hog_part = i; - } - } else { - off_t size; - - size = pp->p_size; - switch (part_size_type[i]) { - case '%': - total_percent += size; - break; - case 'k': - case 'K': - size *= 1024ULL; - break; - case 'm': - case 'M': - size *= 1024ULL * 1024ULL; - break; - case 'g': - case 'G': - size *= 1024ULL * 1024ULL * 1024ULL; - break; - case '\0': - break; - default: - Warning("unknown size specifier '%c' (K/M/G are valid)",part_size_type[i]); - break; - } - /* don't count %'s yet */ - if (part_size_type[i] != '%') { - /* - * for all not in sectors, convert to - * sectors - */ - if (part_size_type[i] != '\0') { - if (size % lp->d_secsize != 0) - Warning("partition %c not an integer number of sectors", - i + 'a'); - size /= lp->d_secsize; - pp->p_size = size; - } - /* else already in sectors */ - if (i != RAW_PART) - total_size += size; - } - } - } - } - /* handle % partitions - note %'s don't need to add up to 100! */ - if (total_percent != 0) { - long free_space = lp->d_secperunit - total_size; - if (total_percent > 100) { - fprintf(stderr,"total percentage %lu is greater than 100\n", - total_percent); - errors++; - } - - if (free_space > 0) { - for (i = 0; i < lp->d_npartitions; i++) { - pp = &lp->d_partitions[i]; - if (part_set[i] && part_size_type[i] == '%') { - /* careful of overflows! and integer roundoff */ - pp->p_size = ((double)pp->p_size/100) * free_space; - total_size += pp->p_size; - - /* FIX we can lose a sector or so due to roundoff per - partition. A more complex algorithm could avoid that */ - } - } - } else { - fprintf(stderr, - "%ld sectors available to give to '*' and '%%' partitions\n", - free_space); - errors++; - /* fix? set all % partitions to size 0? */ - } - } - /* give anything remaining to the hog partition */ - if (hog_part != -1) { - lp->d_partitions[hog_part].p_size = lp->d_secperunit - total_size; - total_size = lp->d_secperunit; - } - - /* Now set the offsets for each partition */ - current_offset = 0; /* in sectors */ - seen_default_offset = 0; - for (i = 0; i < lp->d_npartitions; i++) { - part = 'a' + i; - pp = &lp->d_partitions[i]; - if (part_set[i]) { - if (part_offset_type[i] == '*') { - if (i == RAW_PART) { - pp->p_offset = 0; - } else { - pp->p_offset = current_offset; - seen_default_offset = 1; - } - } else { - /* allow them to be out of order for old-style tables */ - if (pp->p_offset < current_offset && - seen_default_offset && i != RAW_PART && - pp->p_fstype != FS_VINUM) { - fprintf(stderr, -"Offset %ld for partition %c overlaps previous partition which ends at %lu\n", - (long)pp->p_offset,i+'a',current_offset); - fprintf(stderr, -"Labels with any *'s for offset must be in ascending order by sector\n"); - errors++; - } else if (pp->p_offset != current_offset && - i != RAW_PART && seen_default_offset) { - /* - * this may give unneeded warnings if - * partitions are out-of-order - */ - Warning( -"Offset %ld for partition %c doesn't match expected value %ld", - (long)pp->p_offset, i + 'a', current_offset); - } - } - if (i != RAW_PART) - current_offset = pp->p_offset + pp->p_size; - } - } - - for (i = 0; i < lp->d_npartitions; i++) { - part = 'a' + i; - pp = &lp->d_partitions[i]; - if (pp->p_size == 0 && pp->p_offset != 0) - Warning("partition %c: size 0, but offset %lu", - part, (u_long)pp->p_offset); -#ifdef notdef - if (pp->p_size % lp->d_secpercyl) - Warning("partition %c: size %% cylinder-size != 0", - part); - if (pp->p_offset % lp->d_secpercyl) - Warning("partition %c: offset %% cylinder-size != 0", - part); -#endif - if (pp->p_offset > lp->d_secperunit) { - fprintf(stderr, - "partition %c: offset past end of unit\n", part); - errors++; - } - if (pp->p_offset + pp->p_size > lp->d_secperunit) { - fprintf(stderr, - "partition %c: partition extends past end of unit\n", - part); - errors++; - } - if (i == RAW_PART) - { - if (pp->p_fstype != FS_UNUSED) - Warning("partition %c is not marked as unused!",part); - if (pp->p_offset != 0) - Warning("partition %c doesn't start at 0!",part); - if (pp->p_size != lp->d_secperunit) - Warning("partition %c doesn't cover the whole unit!",part); - - if ((pp->p_fstype != FS_UNUSED) || (pp->p_offset != 0) || - (pp->p_size != lp->d_secperunit)) { - Warning("An incorrect partition %c may cause problems for " - "standard system utilities",part); - } - } - - /* check for overlaps */ - /* this will check for all possible overlaps once and only once */ - for (j = 0; j < i; j++) { - pp2 = &lp->d_partitions[j]; - if (j != RAW_PART && i != RAW_PART && - pp->p_fstype != FS_VINUM && - pp2->p_fstype != FS_VINUM && - part_set[i] && part_set[j]) { - if (pp2->p_offset < pp->p_offset + pp->p_size && - (pp2->p_offset + pp2->p_size > pp->p_offset || - pp2->p_offset >= pp->p_offset)) { - fprintf(stderr,"partitions %c and %c overlap!\n", - j + 'a', i + 'a'); - errors++; - } - } - } - } - for (; i < MAXPARTITIONS; i++) { - part = 'a' + i; - pp = &lp->d_partitions[i]; - if (pp->p_size || pp->p_offset) - Warning("unused partition %c: size %d offset %lu", - 'a' + i, pp->p_size, (u_long)pp->p_offset); - } - return (errors); -} - -/* - * When operating on a "virgin" disk, try getting an initial label - * from the associated device driver. This might work for all device - * drivers that are able to fetch some initial device parameters - * without even having access to a (BSD) disklabel, like SCSI disks, - * most IDE drives, or vn devices. - * - * The device name must be given in its "canonical" form. - */ -struct disklabel * -getvirginlabel(void) -{ - static struct disklabel loclab; - struct partition *dp; - char lnamebuf[BBSIZE]; - int f; - u_int secsize, u; - off_t mediasize; - - if (dkname[0] == '/') { - warnx("\"auto\" requires the usage of a canonical disk name"); - return (NULL); - } - (void)snprintf(lnamebuf, BBSIZE, "%s%s", _PATH_DEV, dkname); - if ((f = open(lnamebuf, O_RDONLY)) == -1) { - warn("cannot open %s", lnamebuf); - return (NULL); - } - - /* New world order */ - if ((ioctl(f, DIOCGMEDIASIZE, &mediasize) != 0) || - (ioctl(f, DIOCGSECTORSIZE, &secsize) != 0)) { - close (f); - return (NULL); - } - memset(&loclab, 0, sizeof loclab); - loclab.d_magic = DISKMAGIC; - loclab.d_magic2 = DISKMAGIC; - loclab.d_secsize = secsize; - loclab.d_secperunit = mediasize / secsize; - - /* - * Nobody in these enligthened days uses the CHS geometry for - * anything, but nontheless try to get it right. If we fail - * to get any good ideas from the device, construct something - * which is IBM-PC friendly. - */ - if (ioctl(f, DIOCGFWSECTORS, &u) == 0) - loclab.d_nsectors = u; - else - loclab.d_nsectors = 63; - if (ioctl(f, DIOCGFWHEADS, &u) == 0) - loclab.d_ntracks = u; - else if (loclab.d_secperunit <= 63*1*1024) - loclab.d_ntracks = 1; - else if (loclab.d_secperunit <= 63*16*1024) - loclab.d_ntracks = 16; - else - loclab.d_ntracks = 255; - loclab.d_secpercyl = loclab.d_ntracks * loclab.d_nsectors; - loclab.d_ncylinders = loclab.d_secperunit / loclab.d_secpercyl; - loclab.d_npartitions = MAXPARTITIONS; - - /* Various (unneeded) compat stuff */ - loclab.d_rpm = 3600; - loclab.d_bbsize = BBSIZE; - loclab.d_interleave = 1;; - strncpy(loclab.d_typename, "amnesiac", - sizeof(loclab.d_typename)); - - dp = &loclab.d_partitions[RAW_PART]; - dp->p_size = loclab.d_secperunit; - loclab.d_checksum = dkcksum(&loclab); - close (f); - return (&loclab); -} - - -/*VARARGS1*/ -void -Warning(const char *fmt, ...) -{ - va_list ap; - - fprintf(stderr, "Warning, "); - va_start(ap, fmt); - vfprintf(stderr, fmt, ap); - fprintf(stderr, "\n"); - va_end(ap); -} - -void -usage(void) -{ - - fprintf(stderr, - "%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n%s\n", - "usage: disklabel [-r] disk", - "\t\t(to read label)", - " disklabel -w [-nr] [-m machine] disk type [packid]", - "\t\t(to write label with existing boot program)", - " disklabel -e [-nr] [-m machine] disk", - "\t\t(to edit label)", - " disklabel -R [-nr] [-m machine] disk protofile", - "\t\t(to restore label with existing boot program)", - " disklabel -B [-b boot] [-m machine] disk", - "\t\t(to install boot program with existing on-disk label)", - " disklabel -w -B [-n] [-b boot] [-m machine] disk type [packid]", - "\t\t(to write label and install boot program)", - " disklabel -R -B [-n] [-b boot] [-m machine] disk protofile", - "\t\t(to restore label and install boot program)" - ); - exit(1); -} diff --git a/sbin/disklabel/pathnames.h b/sbin/disklabel/pathnames.h deleted file mode 100644 index c09d469..0000000 --- a/sbin/disklabel/pathnames.h +++ /dev/null @@ -1,40 +0,0 @@ -/* - * Copyright (c) 1989, 1993 - * The 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. - * - * @(#)pathnames.h 8.1 (Berkeley) 6/5/93 - * $FreeBSD$ - */ - -#include <paths.h> - -#define _PATH_BOOTDIR "/boot" -#define PATH_TMPFILE "/tmp/EdDk.XXXXXXXXXX" |