670 lines
17 KiB
C
670 lines
17 KiB
C
/* $NetBSD: bad144.c,v 1.29 2011/11/25 13:13:33 joerg Exp $ */
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/*
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* Copyright (c) 1980, 1986, 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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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1980, 1986, 1988, 1993\
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The Regents of the University of California. All rights reserved.");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)bad144.c 8.2 (Berkeley) 4/27/95";
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#else
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__RCSID("$NetBSD: bad144.c,v 1.29 2011/11/25 13:13:33 joerg Exp $");
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#endif
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#endif /* not lint */
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/*
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* bad144
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*
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* This program prints and/or initializes a bad block record for a pack,
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* in the format used by the DEC standard 144.
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* It can also add bad sector(s) to the record, moving the sector
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* replacements as necessary.
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*
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* It is preferable to write the bad information with a standard formatter,
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* but this program will do.
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*
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* RP06 sectors are marked as bad by inverting the format bit in the
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* header; on other drives the valid-sector bit is cleared.
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*/
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#include <sys/param.h>
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#include <sys/dkbad.h>
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#include <sys/ioctl.h>
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#include <sys/file.h>
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#include <sys/disklabel.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ffs/fs.h>
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#include <err.h>
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#include <paths.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <util.h>
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#define RETRIES 10 /* number of retries on reading old sectors */
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#ifdef __vax__
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static int fflag;
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#endif
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static int add, copy, verbose, nflag;
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static int dups;
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static int badfile = -1; /* copy of badsector table to use, -1 if any */
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#define MAXSECSIZE 1024
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static struct dkbad curbad, oldbad;
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#define DKBAD_MAGIC 0x4321
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static daddr_t size;
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static struct disklabel *dp;
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static struct disklabel label;
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static char diskname[MAXPATHLEN];
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static daddr_t badsn(const struct bt_bad *);
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static int blkcopy(int, daddr_t, daddr_t);
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static void blkzero(int, daddr_t);
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static int checkold(void);
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static int compare(const void *, const void *);
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static daddr_t getold(int, struct dkbad *);
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static void shift(int, int, int);
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__dead static void usage(void);
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#ifdef __vax__
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#define OPTSTRING "01234acfvn"
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#else
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#define OPTSTRING "01234acvn"
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#endif
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int
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main(int argc, char *argv[])
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{
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struct bt_bad *bt;
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daddr_t sn, bn[NBT_BAD];
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int i, f, nbad, new, bad, errs, ch;
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while ((ch = getopt(argc, argv, OPTSTRING)) != -1) {
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switch (ch) {
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case '0':
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case '1':
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case '2':
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case '3':
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case '4':
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badfile = ch - '0';
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break;
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case 'a':
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add = 1;
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break;
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case 'c':
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copy = 1;
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break;
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#ifdef __vax__
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case 'f':
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fflag = 1;
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break;
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#endif
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case 'n':
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nflag = 1;
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/* FALLTHROUGH */
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case 'v':
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verbose = 1;
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break;
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case '?':
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc < 1) {
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usage();
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}
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f = opendisk(argv[0], argc == 1 ? O_RDONLY : O_RDWR, diskname,
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sizeof(diskname), 0);
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if (f < 0)
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err(4, "opendisk `%s'", diskname);
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/* obtain label and adjust to fit */
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dp = &label;
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if (ioctl(f, DIOCGDINFO, dp) < 0)
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err(4, "ioctl DIOCGDINFO `%s'", diskname);
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if (dp->d_magic != DISKMAGIC || dp->d_magic2 != DISKMAGIC
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/* dkcksum(lp) != 0 */ )
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errx(1, "Bad pack magic number (pack is unlabeled)");
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if (dp->d_secsize > MAXSECSIZE || dp->d_secsize == 0)
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errx(7, "Disk sector size too large/small (%d)",
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dp->d_secsize);
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#ifdef __i386__
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if (dp->d_type == DTYPE_SCSI)
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errx(1, "SCSI disks don't use bad144!");
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/* are we inside a DOS partition? */
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if (dp->d_partitions[0].p_offset) {
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/* yes, rules change. assume bad tables at end of partition C,
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which maps all of DOS partition we are within -wfj */
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size = dp->d_partitions[2].p_offset + dp->d_partitions[2].p_size;
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}
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#endif
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size = dp->d_nsectors * dp->d_ntracks * dp->d_ncylinders;
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argc--;
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argv++;
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if (argc == 0) {
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sn = getold(f, &oldbad);
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printf("bad block information at sector %lld in %s:\n",
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(long long)sn, diskname);
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printf("cartridge serial number: %d(10)\n", oldbad.bt_csn);
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switch (oldbad.bt_flag) {
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case (u_short)-1:
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printf("alignment cartridge\n");
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break;
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case DKBAD_MAGIC:
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break;
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default:
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printf("bt_flag=%x(16)?\n", oldbad.bt_flag);
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break;
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}
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bt = oldbad.bt_bad;
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for (i = 0; i < NBT_BAD; i++) {
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bad = (bt->bt_cyl<<16) + bt->bt_trksec;
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if (bad < 0)
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break;
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printf("sn=%lld, cn=%d, tn=%d, sn=%d\n",
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(long long)badsn(bt),
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bt->bt_cyl, bt->bt_trksec>>8, bt->bt_trksec&0xff);
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bt++;
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}
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(void) checkold();
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exit(0);
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}
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if (add) {
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/*
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* Read in the old badsector table.
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* Verify that it makes sense, and the bad sectors
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* are in order. Copy the old table to the new one.
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*/
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(void) getold(f, &oldbad);
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i = checkold();
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if (verbose)
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printf("Had %d bad sectors, adding %d\n", i, argc);
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if (i + argc > NBT_BAD) {
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printf("bad144: not enough room for %d more sectors\n",
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argc);
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printf("limited to %d by information format\n",
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NBT_BAD);
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exit(1);
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}
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curbad = oldbad;
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} else {
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curbad.bt_csn = atoi(*argv++);
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argc--;
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curbad.bt_mbz = 0;
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curbad.bt_flag = DKBAD_MAGIC;
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if (argc > NBT_BAD) {
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printf("bad144: too many bad sectors specified\n");
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printf("limited to %d by information format\n",
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NBT_BAD);
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exit(1);
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}
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i = 0;
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}
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errs = 0;
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new = argc;
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while (argc > 0) {
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sn = atoi(*argv++);
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argc--;
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if (sn < 0 || sn >= size) {
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printf("%lld: out of range [0,%lld) for disk %s\n",
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(long long)sn, (long long)size, dp->d_typename);
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errs++;
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continue;
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}
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bn[i] = sn;
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curbad.bt_bad[i].bt_cyl = sn / (dp->d_nsectors*dp->d_ntracks);
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sn %= (dp->d_nsectors*dp->d_ntracks);
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curbad.bt_bad[i].bt_trksec =
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((sn/dp->d_nsectors) << 8) + (sn%dp->d_nsectors);
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i++;
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}
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if (errs)
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exit(1);
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nbad = i;
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while (i < NBT_BAD) {
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curbad.bt_bad[i].bt_trksec = -1;
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curbad.bt_bad[i].bt_cyl = -1;
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i++;
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}
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if (add) {
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/*
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* Sort the new bad sectors into the list.
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* Then shuffle the replacement sectors so that
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* the previous bad sectors get the same replacement data.
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*/
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qsort((char *)curbad.bt_bad, nbad, sizeof (struct bt_bad),
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compare);
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if (dups)
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errx(3, "bad sectors have been duplicated; "
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"can't add existing sectors");
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shift(f, nbad, nbad-new);
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}
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if (badfile == -1)
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i = 0;
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else
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i = badfile * 2;
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for (; i < 10 && i < (int)dp->d_nsectors; i += 2) {
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if (lseek(f,
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(off_t)(dp->d_secsize * (size - dp->d_nsectors + i)),
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SEEK_SET) < 0)
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err(4, "lseek");
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if (verbose)
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printf("write badsect file at %lld\n",
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(long long)size - dp->d_nsectors + i);
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if (nflag == 0 && write(f, (caddr_t)&curbad, sizeof(curbad)) !=
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sizeof(curbad))
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err(4, "write bad sector file %d", i/2);
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if (badfile != -1)
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break;
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}
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#ifdef __vax__
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if (nflag == 0 && fflag)
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for (i = nbad - new; i < nbad; i++)
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format(f, bn[i]);
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#endif
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#ifdef DIOCSBAD
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if (nflag == 0 && ioctl(f, DIOCSBAD, (caddr_t)&curbad) < 0)
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warnx("Can't sync bad-sector file; reboot for changes "
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"to take effect");
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#endif
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if ((dp->d_flags & D_BADSECT) == 0 && nflag == 0) {
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dp->d_flags |= D_BADSECT;
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if (ioctl(f, DIOCWDINFO, dp) < 0) {
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warn("label");
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errx(1,
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"Can't write label to enable bad sector handling");
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}
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}
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return (0);
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}
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static daddr_t
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getold(int f, struct dkbad *bad)
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{
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int i;
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daddr_t sn;
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if (badfile == -1)
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i = 0;
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else
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i = badfile * 2;
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for (; i < 10 && i < (int)dp->d_nsectors; i += 2) {
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sn = size - dp->d_nsectors + i;
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if (lseek(f, (off_t)(sn * dp->d_secsize), SEEK_SET) < 0)
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err(4, "lseek");
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if ((size_t)read(f, (char *) bad, dp->d_secsize) == dp->d_secsize) {
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if (i > 0)
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printf("Using bad-sector file %d\n", i/2);
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return(sn);
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}
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warn("read bad sector file at sn %lld", (long long)sn);
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if (badfile != -1)
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break;
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}
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errx(1, "%s: can't read bad block info", diskname);
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/*NOTREACHED*/
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}
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static int
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checkold(void)
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{
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int i;
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struct bt_bad *bt;
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daddr_t sn, lsn;
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int errors = 0, warned = 0;
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lsn = 0;
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if (oldbad.bt_flag != DKBAD_MAGIC) {
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warnx("%s: bad flag in bad-sector table", diskname);
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errors++;
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}
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if (oldbad.bt_mbz != 0) {
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warnx("%s: bad magic number", diskname);
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errors++;
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}
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bt = oldbad.bt_bad;
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for (i = 0; i < NBT_BAD; i++, bt++) {
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if (bt->bt_cyl == 0xffff && bt->bt_trksec == 0xffff)
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break;
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if ((bt->bt_cyl >= dp->d_ncylinders) ||
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((bt->bt_trksec >> 8) >= dp->d_ntracks) ||
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((bt->bt_trksec & 0xff) >= dp->d_nsectors)) {
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warnx("cyl/trk/sect out of range in existing entry: "
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"sn=%lld, cn=%d, tn=%d, sn=%d",
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(long long)badsn(bt), bt->bt_cyl, bt->bt_trksec>>8,
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bt->bt_trksec & 0xff);
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errors++;
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}
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sn = (bt->bt_cyl * dp->d_ntracks +
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(bt->bt_trksec >> 8)) *
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dp->d_nsectors + (bt->bt_trksec & 0xff);
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if (i > 0 && sn < lsn && !warned) {
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warnx("bad sector file is out of order");
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errors++;
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warned++;
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}
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if (i > 0 && sn == lsn) {
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warnx("bad sector file contains duplicates (sn %lld)",
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(long long)sn);
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errors++;
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}
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lsn = sn;
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}
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if (errors)
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exit(1);
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return (i);
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}
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/*
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* Move the bad sector replacements
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* to make room for the new bad sectors.
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* new is the new number of bad sectors, old is the previous count.
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*/
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static void
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shift(int f, int new, int old)
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{
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daddr_t repl;
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/*
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* First replacement is last sector of second-to-last track.
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*/
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repl = size - dp->d_nsectors - 1;
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new--; old--;
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while (new >= 0 && new != old) {
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if (old < 0 ||
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compare(&curbad.bt_bad[new], &oldbad.bt_bad[old]) > 0) {
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/*
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* Insert new replacement here-- copy original
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* sector if requested and possible,
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* otherwise write a zero block.
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*/
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if (!copy ||
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!blkcopy(f, badsn(&curbad.bt_bad[new]), repl - new))
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blkzero(f, repl - new);
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} else {
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if (blkcopy(f, repl - old, repl - new) == 0)
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warnx("Can't copy replacement sector %lld to %lld",
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(long long)repl-old, (long long)repl-new);
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old--;
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}
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new--;
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}
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}
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static char *buf;
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/*
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* Copy disk sector s1 to s2.
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*/
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static int
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blkcopy(int f, daddr_t s1, daddr_t s2)
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{
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int tries, n;
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if (buf == NULL) {
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buf = malloc((unsigned)dp->d_secsize);
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if (buf == NULL)
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errx(20, "Out of memory");
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}
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for (tries = 0; tries < RETRIES; tries++) {
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if (lseek(f, (off_t)(dp->d_secsize * s1), SEEK_SET) < 0)
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err(4, "lseek");
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if ((size_t)(n = read(f, buf, dp->d_secsize)) == dp->d_secsize)
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break;
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}
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if ((size_t)n != dp->d_secsize) {
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if (n < 0)
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err(4, "can't read sector, %lld", (long long)s1);
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else
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errx(4, "can't read sector, %lld", (long long)s1);
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return(0);
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}
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if (lseek(f, (off_t)(dp->d_secsize * s2), SEEK_SET) < 0)
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err(4, "lseek");
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if (verbose)
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printf("copying %lld to %lld\n", (long long)s1, (long long)s2);
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if (nflag == 0 && (size_t)write(f, buf, dp->d_secsize) != dp->d_secsize) {
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warn("can't write replacement sector, %lld", (long long)s2);
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return(0);
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}
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return(1);
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}
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static void
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blkzero(int f, daddr_t sn)
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{
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char *zbuf;
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zbuf = calloc(1, (unsigned int)dp->d_secsize);
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if (zbuf == NULL)
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errx(20, "Out of memory");
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if (lseek(f, (off_t)(dp->d_secsize * sn), SEEK_SET) < 0) {
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free(zbuf);
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err(4, "lseek");
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}
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if (verbose)
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printf("zeroing %lld\n", (long long)sn);
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if (nflag == 0 && (size_t)write(f, zbuf, dp->d_secsize) != dp->d_secsize)
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warn("can't write replacement sector, %lld",
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(long long)sn);
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free(zbuf);
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}
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static int
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compare(const void *v1, const void *v2)
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{
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const struct bt_bad *b1 = v1;
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const struct bt_bad *b2 = v2;
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if (b1->bt_cyl > b2->bt_cyl)
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return(1);
|
|
if (b1->bt_cyl < b2->bt_cyl)
|
|
return(-1);
|
|
if (b1->bt_trksec == b2->bt_trksec)
|
|
dups++;
|
|
return (b1->bt_trksec - b2->bt_trksec);
|
|
}
|
|
|
|
static daddr_t
|
|
badsn(const struct bt_bad *bt)
|
|
{
|
|
|
|
return ((bt->bt_cyl * dp->d_ntracks
|
|
+ (bt->bt_trksec >> 8)) * dp->d_nsectors
|
|
+ (bt->bt_trksec & 0xff));
|
|
}
|
|
|
|
#ifdef __vax__
|
|
|
|
struct rp06hdr {
|
|
short h_cyl;
|
|
short h_trksec;
|
|
short h_key1;
|
|
short h_key2;
|
|
char h_data[512];
|
|
#define RP06_FMT 010000 /* 1 == 16 bit, 0 == 18 bit */
|
|
};
|
|
|
|
/*
|
|
* Most massbus and unibus drives
|
|
* have headers of this form
|
|
*/
|
|
struct hpuphdr {
|
|
u_short hpup_cyl;
|
|
u_char hpup_sect;
|
|
u_char hpup_track;
|
|
char hpup_data[512];
|
|
#define HPUP_OKSECT 0xc000 /* this normally means sector is good */
|
|
#define HPUP_16BIT 0x1000 /* 1 == 16 bit format */
|
|
};
|
|
|
|
static int rp06format(struct formats *, struct disklabel *, daddr_t, char *, int);
|
|
static int hpupformat(struct formats *, struct disklabel *, daddr_t, char *, int);
|
|
|
|
static struct formats {
|
|
char *f_name; /* disk name */
|
|
int f_bufsize; /* size of sector + header */
|
|
int f_bic; /* value to bic in hpup_cyl */
|
|
int (*f_routine)(); /* routine for special handling */
|
|
} formats[] = {
|
|
{ "rp06", sizeof (struct rp06hdr), RP06_FMT, rp06format },
|
|
{ "eagle", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat },
|
|
{ "capricorn", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat },
|
|
{ "rm03", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat },
|
|
{ "rm05", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat },
|
|
{ "9300", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat },
|
|
{ "9766", sizeof (struct hpuphdr), HPUP_OKSECT, hpupformat },
|
|
{ 0, 0, 0, 0 }
|
|
};
|
|
|
|
/*ARGSUSED*/
|
|
static int
|
|
hpupformat(struct formats *fp, struct disklabel *dp, daddr_t blk, char *buf,
|
|
int count)
|
|
{
|
|
struct hpuphdr *hdr = (struct hpuphdr *)buf;
|
|
int sect;
|
|
|
|
if (count < sizeof(struct hpuphdr)) {
|
|
hdr->hpup_cyl = (HPUP_OKSECT | HPUP_16BIT) |
|
|
(blk / (dp->d_nsectors * dp->d_ntracks));
|
|
sect = blk % (dp->d_nsectors * dp->d_ntracks);
|
|
hdr->hpup_track = (u_char)(sect / dp->d_nsectors);
|
|
hdr->hpup_sect = (u_char)(sect % dp->d_nsectors);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*ARGSUSED*/
|
|
static int
|
|
rp06format(struct formats *fp, struct disklabel *dp, daddr_t blk, char *buf,
|
|
int count)
|
|
{
|
|
|
|
if (count < sizeof(struct rp06hdr)) {
|
|
warnx("Can't read header on blk %d, can't reformat", blk);
|
|
return (-1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
format(int fd, daddr_t blk)
|
|
{
|
|
struct formats *fp;
|
|
static char *buf;
|
|
static char bufsize;
|
|
struct format_op fop;
|
|
int n;
|
|
|
|
for (fp = formats; fp->f_name; fp++)
|
|
if (strcmp(dp->d_typename, fp->f_name) == 0)
|
|
break;
|
|
if (fp->f_name == 0)
|
|
errx(2, "don't know how to format %s disks", dp->d_typename);
|
|
if (buf && bufsize < fp->f_bufsize) {
|
|
free(buf);
|
|
buf = NULL;
|
|
}
|
|
if (buf == NULL)
|
|
buf = malloc((unsigned)fp->f_bufsize);
|
|
if (buf == NULL)
|
|
errx(3, "can't allocate sector buffer");
|
|
bufsize = fp->f_bufsize;
|
|
/*
|
|
* Here we do the actual formatting. All we really
|
|
* do is rewrite the sector header and flag the bad sector
|
|
* according to the format table description. If a special
|
|
* purpose format routine is specified, we allow it to
|
|
* process the sector as well.
|
|
*/
|
|
if (verbose)
|
|
printf("format blk %d\n", blk);
|
|
memset((char *)&fop, 0, sizeof(fop));
|
|
fop.df_buf = buf;
|
|
fop.df_count = fp->f_bufsize;
|
|
fop.df_startblk = blk;
|
|
memset(buf, 0, fp->f_bufsize);
|
|
if (ioctl(fd, DIOCRFORMAT, &fop) < 0)
|
|
warn("read format");
|
|
if (fp->f_routine &&
|
|
(*fp->f_routine)(fp, dp, blk, buf, fop.df_count) != 0)
|
|
return;
|
|
if (fp->f_bic) {
|
|
struct hpuphdr *xp = (struct hpuphdr *)buf;
|
|
|
|
xp->hpup_cyl &= ~fp->f_bic;
|
|
}
|
|
if (nflag)
|
|
return;
|
|
memset((char *)&fop, 0, sizeof(fop));
|
|
fop.df_buf = buf;
|
|
fop.df_count = fp->f_bufsize;
|
|
fop.df_startblk = blk;
|
|
if (ioctl(fd, DIOCWFORMAT, &fop) < 0)
|
|
err(4, "write format");
|
|
if (fop.df_count != fp->f_bufsize)
|
|
warn("write format %d", blk);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
|
|
fprintf(stderr, "usage: bad144 [-%sv] disk [sno [bad ...]]\n"
|
|
"to read or overwrite the bad-sector table, e.g.: bad144 hp0\n"
|
|
"or bad144 -a [-c%sv] disk [bad ...]\n"
|
|
"where options are:\n"
|
|
"\t-a add new bad sectors to the table\n"
|
|
"\t-c copy original sector to replacement\n"
|
|
"%s"
|
|
"\t-v verbose mode\n",
|
|
#ifdef __vax__
|
|
"f", "f", "\t-f reformat listed sectors as bad\n"
|
|
#else
|
|
"", "", ""
|
|
#endif
|
|
);
|
|
exit(1);
|
|
}
|