11558Srgrimes/* 21558Srgrimes * Copyright (c) 1981, 1983, 1993 31558Srgrimes * The Regents of the University of California. All rights reserved. 41558Srgrimes * 51558Srgrimes * Redistribution and use in source and binary forms, with or without 61558Srgrimes * modification, are permitted provided that the following conditions 71558Srgrimes * are met: 81558Srgrimes * 1. Redistributions of source code must retain the above copyright 91558Srgrimes * notice, this list of conditions and the following disclaimer. 101558Srgrimes * 2. Redistributions in binary form must reproduce the above copyright 111558Srgrimes * notice, this list of conditions and the following disclaimer in the 121558Srgrimes * documentation and/or other materials provided with the distribution. 131558Srgrimes * 4. Neither the name of the University nor the names of its contributors 141558Srgrimes * may be used to endorse or promote products derived from this software 151558Srgrimes * without specific prior written permission. 161558Srgrimes * 171558Srgrimes * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 181558Srgrimes * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 191558Srgrimes * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 201558Srgrimes * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 211558Srgrimes * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 221558Srgrimes * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 231558Srgrimes * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 241558Srgrimes * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 251558Srgrimes * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 261558Srgrimes * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 271558Srgrimes * SUCH DAMAGE. 281558Srgrimes */ 291558Srgrimes 30114589Sobrien#if 0 311558Srgrimes#ifndef lint 327590Sbdestatic const char copyright[] = 331558Srgrimes"@(#) Copyright (c) 1981, 1983, 1993\n\ 341558Srgrimes The Regents of the University of California. All rights reserved.\n"; 351558Srgrimes#endif /* not lint */ 361558Srgrimes 371558Srgrimes#ifndef lint 387590Sbdestatic const char sccsid[] = "@(#)badsect.c 8.1 (Berkeley) 6/5/93"; 3936626Scharnier#endif 40114589Sobrien#endif 41114589Sobrien#include <sys/cdefs.h> 42114589Sobrien__FBSDID("$FreeBSD$"); 431558Srgrimes 441558Srgrimes/* 451558Srgrimes * badsect 461558Srgrimes * 471558Srgrimes * Badsect takes a list of file-system relative sector numbers 481558Srgrimes * and makes files containing the blocks of which these sectors are a part. 491558Srgrimes * It can be used to contain sectors which have problems if these sectors 501558Srgrimes * are not part of the bad file for the pack (see bad144). For instance, 51102231Strhodes * this program can be used if the driver for the file system in question 521558Srgrimes * does not support bad block forwarding. 531558Srgrimes */ 541558Srgrimes#include <sys/param.h> 551558Srgrimes#include <sys/stat.h> 5696478Sphk#include <sys/disklabel.h> 571558Srgrimes 5898542Smckusick#include <ufs/ufs/dinode.h> 591558Srgrimes#include <ufs/ffs/fs.h> 601558Srgrimes 6136626Scharnier#include <err.h> 62139648Srwatson#include <errno.h> 6318485Sbde#include <dirent.h> 641558Srgrimes#include <fcntl.h> 65109600Sjmallett#include <libufs.h> 661558Srgrimes#include <paths.h> 671558Srgrimes#include <stdio.h> 681558Srgrimes#include <stdlib.h> 6978732Sdd#include <string.h> 701558Srgrimes#include <unistd.h> 711558Srgrimes 72109600Sjmallett#define sblock disk.d_fs 73109600Sjmallett#define acg disk.d_cg 74227081Sedstatic struct uufsd disk; 75227081Sedstatic struct fs *fs = &sblock; 76227081Sedstatic int errs; 771558Srgrimes 7892538Simpint chkuse(daddr_t, int); 791558Srgrimes 8036626Scharnierstatic void 8136626Scharnierusage(void) 8236626Scharnier{ 8336626Scharnier fprintf(stderr, "usage: badsect bbdir blkno ...\n"); 8436626Scharnier exit(1); 8536626Scharnier} 8636626Scharnier 871558Srgrimesint 8892538Simpmain(int argc, char *argv[]) 891558Srgrimes{ 907589Sbde daddr_t diskbn; 911558Srgrimes daddr_t number; 921558Srgrimes struct stat stbuf, devstat; 9392753Simp struct dirent *dp; 941558Srgrimes DIR *dirp; 957589Sbde char name[2 * MAXPATHLEN]; 967589Sbde char *name_dir_end; 971558Srgrimes 9836626Scharnier if (argc < 3) 9936626Scharnier usage(); 10036626Scharnier if (chdir(argv[1]) < 0 || stat(".", &stbuf) < 0) 10136626Scharnier err(2, "%s", argv[1]); 1021558Srgrimes strcpy(name, _PATH_DEV); 10336626Scharnier if ((dirp = opendir(name)) == NULL) 10436626Scharnier err(3, "%s", name); 1057589Sbde name_dir_end = name + strlen(name); 1061558Srgrimes while ((dp = readdir(dirp)) != NULL) { 1077589Sbde strcpy(name_dir_end, dp->d_name); 10836626Scharnier if (lstat(name, &devstat) < 0) 10936626Scharnier err(4, "%s", name); 1101558Srgrimes if (stbuf.st_dev == devstat.st_rdev && 11168521Sadrian (devstat.st_mode & IFMT) == IFCHR) 1121558Srgrimes break; 1131558Srgrimes } 1141558Srgrimes closedir(dirp); 1151558Srgrimes if (dp == NULL) { 1167590Sbde printf("Cannot find dev 0%lo corresponding to %s\n", 11737233Sbde (u_long)stbuf.st_rdev, argv[1]); 1181558Srgrimes exit(5); 1191558Srgrimes } 120109600Sjmallett if (ufs_disk_fillout(&disk, name) == -1) { 121109600Sjmallett if (disk.d_error != NULL) 122109600Sjmallett errx(6, "%s: %s", name, disk.d_error); 123109600Sjmallett else 124109600Sjmallett err(7, "%s", name); 12598542Smckusick } 1261558Srgrimes for (argc -= 2, argv += 2; argc > 0; argc--, argv++) { 127139648Srwatson number = strtol(*argv, NULL, 0); 128139648Srwatson if (errno == EINVAL || errno == ERANGE) 129139648Srwatson err(8, "%s", *argv); 1301558Srgrimes if (chkuse(number, 1)) 1311558Srgrimes continue; 1327589Sbde /* 1337589Sbde * Print a warning if converting the block number to a dev_t 1347589Sbde * will truncate it. badsect was not very useful in versions 1357589Sbde * of BSD before 4.4 because dev_t was 16 bits and another 1367589Sbde * bit was lost by bogus sign extensions. 1377589Sbde */ 1387589Sbde diskbn = dbtofsb(fs, number); 1397589Sbde if ((dev_t)diskbn != diskbn) { 1407590Sbde printf("sector %ld cannot be represented as a dev_t\n", 14137233Sbde (long)number); 1427589Sbde errs++; 1437589Sbde } 1447589Sbde else if (mknod(*argv, IFMT|0600, (dev_t)diskbn) < 0) { 14536626Scharnier warn("%s", *argv); 1461558Srgrimes errs++; 1471558Srgrimes } 1481558Srgrimes } 149109600Sjmallett ufs_disk_close(&disk); 1501558Srgrimes printf("Don't forget to run ``fsck %s''\n", name); 1511558Srgrimes exit(errs); 1521558Srgrimes} 1531558Srgrimes 1541558Srgrimesint 15592538Simpchkuse(daddr_t blkno, int cnt) 1561558Srgrimes{ 1571558Srgrimes int cg; 1581558Srgrimes daddr_t fsbn, bn; 1591558Srgrimes 1601558Srgrimes fsbn = dbtofsb(fs, blkno); 1611558Srgrimes if ((unsigned)(fsbn+cnt) > fs->fs_size) { 162102231Strhodes printf("block %ld out of range of file system\n", (long)blkno); 1631558Srgrimes return (1); 1641558Srgrimes } 1651558Srgrimes cg = dtog(fs, fsbn); 1661558Srgrimes if (fsbn < cgdmin(fs, cg)) { 1671558Srgrimes if (cg == 0 || (fsbn+cnt) > cgsblock(fs, cg)) { 1687590Sbde printf("block %ld in non-data area: cannot attach\n", 16937233Sbde (long)blkno); 1701558Srgrimes return (1); 1711558Srgrimes } 1721558Srgrimes } else { 1731558Srgrimes if ((fsbn+cnt) > cgbase(fs, cg+1)) { 1747590Sbde printf("block %ld in non-data area: cannot attach\n", 17537233Sbde (long)blkno); 1761558Srgrimes return (1); 1771558Srgrimes } 1781558Srgrimes } 179109600Sjmallett if (cgread1(&disk, cg) != 1) { 180109600Sjmallett fprintf(stderr, "cg %d: could not be read\n", cg); 181109600Sjmallett errs++; 182109600Sjmallett return (1); 183109600Sjmallett } 1841558Srgrimes if (!cg_chkmagic(&acg)) { 1851558Srgrimes fprintf(stderr, "cg %d: bad magic number\n", cg); 1861558Srgrimes errs++; 1871558Srgrimes return (1); 1881558Srgrimes } 1891558Srgrimes bn = dtogd(fs, fsbn); 1901558Srgrimes if (isclr(cg_blksfree(&acg), bn)) 19137233Sbde printf("Warning: sector %ld is in use\n", (long)blkno); 1921558Srgrimes return (0); 1931558Srgrimes} 194