1/* 2 * Copyright (c) 1980, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35static const char copyright[] = 36"@(#) Copyright (c) 1980, 1986, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38#endif /* not lint */ 39 40#ifndef lint 41#if 0 42static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 43#endif 44static const char rcsid[] =
| 1/* 2 * Copyright (c) 1980, 1986, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by the University of 16 * California, Berkeley and its contributors. 17 * 4. Neither the name of the University nor the names of its contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31 * SUCH DAMAGE. 32 */ 33 34#ifndef lint 35static const char copyright[] = 36"@(#) Copyright (c) 1980, 1986, 1993\n\ 37 The Regents of the University of California. All rights reserved.\n"; 38#endif /* not lint */ 39 40#ifndef lint 41#if 0 42static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95"; 43#endif 44static const char rcsid[] =
|
45 "$FreeBSD: head/sbin/fsck_ffs/main.c 86514 2001-11-17 23:48:21Z iedowse $";
| 45 "$FreeBSD: head/sbin/fsck_ffs/main.c 92839 2002-03-20 22:57:10Z imp $";
|
46#endif /* not lint */ 47 48#include <sys/param.h> 49#include <sys/stat.h> 50#include <sys/file.h> 51#include <sys/time.h> 52#include <sys/mount.h> 53#include <sys/resource.h> 54#include <sys/sysctl.h> 55 56#include <ufs/ufs/dinode.h> 57#include <ufs/ufs/ufsmount.h> 58#include <ufs/ffs/fs.h> 59 60#include <err.h> 61#include <errno.h> 62#include <fstab.h> 63#include <paths.h> 64#include <string.h> 65 66#include "fsck.h" 67
| 46#endif /* not lint */ 47 48#include <sys/param.h> 49#include <sys/stat.h> 50#include <sys/file.h> 51#include <sys/time.h> 52#include <sys/mount.h> 53#include <sys/resource.h> 54#include <sys/sysctl.h> 55 56#include <ufs/ufs/dinode.h> 57#include <ufs/ufs/ufsmount.h> 58#include <ufs/ffs/fs.h> 59 60#include <err.h> 61#include <errno.h> 62#include <fstab.h> 63#include <paths.h> 64#include <string.h> 65 66#include "fsck.h" 67
|
68static void usage __P((void)); 69static int argtoi __P((int flag, char *req, char *str, int base)); 70static int checkfilesys __P((char *filesys)); 71static struct statfs *getmntpt __P((const char *)); 72int main __P((int argc, char *argv[]));
| 68static void usage(void) __dead2; 69static int argtoi(int flag, char *req, char *str, int base); 70static int checkfilesys(char *filesys); 71static struct statfs *getmntpt(const char *);
|
73 74int
| 72 73int
|
75main(argc, argv) 76 int argc; 77 char *argv[];
| 74main(int argc, char *argv[])
|
78{ 79 int ch; 80 struct rlimit rlimit; 81 int ret = 0; 82 83 sync(); 84 skipclean = 1; 85 while ((ch = getopt(argc, argv, "b:Bc:dfFm:npy")) != -1) { 86 switch (ch) { 87 case 'b': 88 skipclean = 0; 89 bflag = argtoi('b', "number", optarg, 10); 90 printf("Alternate super block location: %d\n", bflag); 91 break; 92 93 case 'B': 94 bkgrdflag = 1; 95 break; 96 97 case 'c': 98 skipclean = 0; 99 cvtlevel = argtoi('c', "conversion level", optarg, 10); 100 break; 101 102 case 'd': 103 debug++; 104 break; 105 106 case 'f': 107 skipclean = 0; 108 break; 109 110 case 'F': 111 bkgrdcheck = 1; 112 break; 113 114 case 'm': 115 lfmode = argtoi('m', "mode", optarg, 8); 116 if (lfmode &~ 07777) 117 errx(EEXIT, "bad mode to -m: %o", lfmode); 118 printf("** lost+found creation mode %o\n", lfmode); 119 break; 120 121 case 'n': 122 nflag++; 123 yflag = 0; 124 break; 125 126 case 'p': 127 preen++; 128 break; 129 130 case 'y': 131 yflag++; 132 nflag = 0; 133 break; 134 135 default: 136 usage(); 137 } 138 } 139 argc -= optind; 140 argv += optind; 141 142 if (!argc) 143 usage(); 144 145 if (signal(SIGINT, SIG_IGN) != SIG_IGN) 146 (void)signal(SIGINT, catch); 147 if (preen) 148 (void)signal(SIGQUIT, catchquit); 149 signal(SIGINFO, infohandler); 150 /* 151 * Push up our allowed memory limit so we can cope 152 * with huge filesystems. 153 */ 154 if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 155 rlimit.rlim_cur = rlimit.rlim_max; 156 (void)setrlimit(RLIMIT_DATA, &rlimit); 157 } 158 while (argc-- > 0) 159 (void)checkfilesys(*argv++); 160 161 if (returntosingle) 162 ret = 2; 163 exit(ret); 164} 165 166static int
| 75{ 76 int ch; 77 struct rlimit rlimit; 78 int ret = 0; 79 80 sync(); 81 skipclean = 1; 82 while ((ch = getopt(argc, argv, "b:Bc:dfFm:npy")) != -1) { 83 switch (ch) { 84 case 'b': 85 skipclean = 0; 86 bflag = argtoi('b', "number", optarg, 10); 87 printf("Alternate super block location: %d\n", bflag); 88 break; 89 90 case 'B': 91 bkgrdflag = 1; 92 break; 93 94 case 'c': 95 skipclean = 0; 96 cvtlevel = argtoi('c', "conversion level", optarg, 10); 97 break; 98 99 case 'd': 100 debug++; 101 break; 102 103 case 'f': 104 skipclean = 0; 105 break; 106 107 case 'F': 108 bkgrdcheck = 1; 109 break; 110 111 case 'm': 112 lfmode = argtoi('m', "mode", optarg, 8); 113 if (lfmode &~ 07777) 114 errx(EEXIT, "bad mode to -m: %o", lfmode); 115 printf("** lost+found creation mode %o\n", lfmode); 116 break; 117 118 case 'n': 119 nflag++; 120 yflag = 0; 121 break; 122 123 case 'p': 124 preen++; 125 break; 126 127 case 'y': 128 yflag++; 129 nflag = 0; 130 break; 131 132 default: 133 usage(); 134 } 135 } 136 argc -= optind; 137 argv += optind; 138 139 if (!argc) 140 usage(); 141 142 if (signal(SIGINT, SIG_IGN) != SIG_IGN) 143 (void)signal(SIGINT, catch); 144 if (preen) 145 (void)signal(SIGQUIT, catchquit); 146 signal(SIGINFO, infohandler); 147 /* 148 * Push up our allowed memory limit so we can cope 149 * with huge filesystems. 150 */ 151 if (getrlimit(RLIMIT_DATA, &rlimit) == 0) { 152 rlimit.rlim_cur = rlimit.rlim_max; 153 (void)setrlimit(RLIMIT_DATA, &rlimit); 154 } 155 while (argc-- > 0) 156 (void)checkfilesys(*argv++); 157 158 if (returntosingle) 159 ret = 2; 160 exit(ret); 161} 162 163static int
|
167argtoi(flag, req, str, base) 168 int flag; 169 char *req, *str; 170 int base;
| 164argtoi(int flag, char *req, char *str, int base)
|
171{ 172 char *cp; 173 int ret; 174 175 ret = (int)strtol(str, &cp, base); 176 if (cp == str || *cp) 177 errx(EEXIT, "-%c flag requires a %s", flag, req); 178 return (ret); 179} 180 181/* 182 * Check the specified filesystem. 183 */ 184/* ARGSUSED */ 185static int
| 165{ 166 char *cp; 167 int ret; 168 169 ret = (int)strtol(str, &cp, base); 170 if (cp == str || *cp) 171 errx(EEXIT, "-%c flag requires a %s", flag, req); 172 return (ret); 173} 174 175/* 176 * Check the specified filesystem. 177 */ 178/* ARGSUSED */ 179static int
|
186checkfilesys(filesys) 187 char *filesys;
| 180checkfilesys(char *filesys)
|
188{ 189 ufs_daddr_t n_ffree, n_bfree; 190 struct ufs_args args; 191 struct dups *dp; 192 struct statfs *mntp; 193 struct zlncnt *zlnp; 194 ufs_daddr_t blks; 195 ufs_daddr_t files; 196 int cylno, size; 197 198 cdevname = filesys; 199 if (debug && preen) 200 pwarn("starting\n"); 201 /* 202 * Make best effort to get the disk name. Check first to see 203 * if it is listed among the mounted filesystems. Failing that 204 * check to see if it is listed in /etc/fstab. 205 */ 206 mntp = getmntpt(filesys); 207 if (mntp != NULL) 208 filesys = mntp->f_mntfromname; 209 else 210 filesys = blockcheck(filesys); 211 /* 212 * If -F flag specified, check to see whether a background check 213 * is possible and needed. If possible and needed, exit with 214 * status zero. Otherwise exit with status non-zero. A non-zero 215 * exit status will cause a foreground check to be run. 216 */ 217 sblock_init(); 218 if (bkgrdcheck) { 219 if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 220 exit(3); /* Cannot read superblock */ 221 close(fsreadfd); 222 if (sblock.fs_flags & FS_NEEDSFSCK) 223 exit(4); /* Earlier background failed */ 224 if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 225 exit(5); /* Not running soft updates */ 226 size = MIBSIZE; 227 if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 228 exit(6); /* Lacks kernel support */ 229 if ((mntp == NULL && sblock.fs_clean == 1) || 230 (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 231 exit(7); /* Filesystem clean, report it now */ 232 exit(0); 233 } 234 /* 235 * If we are to do a background check: 236 * Get the mount point information of the filesystem 237 * create snapshot file 238 * return created snapshot file 239 * if not found, clear bkgrdflag and proceed with normal fsck 240 */ 241 if (bkgrdflag) { 242 if (mntp == NULL) { 243 bkgrdflag = 0; 244 pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 245 } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 246 bkgrdflag = 0; 247 pfatal("NOT USING SOFT UPDATES, %s\n", 248 "CANNOT RUN IN BACKGROUND"); 249 } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 250 bkgrdflag = 0; 251 pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 252 } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 253 if (readsb(0) != 0) { 254 if (sblock.fs_flags & FS_NEEDSFSCK) { 255 bkgrdflag = 0; 256 pfatal("UNEXPECTED INCONSISTENCY, %s\n", 257 "CANNOT RUN IN BACKGROUND\n"); 258 } 259 if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 260 skipclean && preen) { 261 /* 262 * filesystem is clean; 263 * skip snapshot and report it clean 264 */ 265 pwarn("FILESYSTEM CLEAN; %s\n", 266 "SKIPPING CHECKS"); 267 goto clean; 268 } 269 } 270 close(fsreadfd); 271 } 272 if (bkgrdflag) { 273 snprintf(snapname, sizeof snapname, "%s/.fsck_snapshot", 274 mntp->f_mntonname); 275 args.fspec = snapname; 276 while (mount("ffs", mntp->f_mntonname, 277 mntp->f_flags | MNT_UPDATE | MNT_SNAPSHOT, 278 &args) < 0) { 279 if (errno == EEXIST && unlink(snapname) == 0) 280 continue; 281 bkgrdflag = 0; 282 pfatal("CANNOT CREATE SNAPSHOT %s: %s\n", 283 snapname, strerror(errno)); 284 break; 285 } 286 if (bkgrdflag != 0) 287 filesys = snapname; 288 } 289 } 290 291 switch (setup(filesys)) { 292 case 0: 293 if (preen) 294 pfatal("CAN'T CHECK FILE SYSTEM."); 295 return (0); 296 case -1: 297 clean: 298 pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 299 sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 300 printf("(%d frags, %d blocks, %.1f%% fragmentation)\n", 301 sblock.fs_cstotal.cs_nffree, sblock.fs_cstotal.cs_nbfree, 302 sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 303 return (0); 304 } 305 306 /* 307 * Cleared if any questions answered no. Used to decide if 308 * the superblock should be marked clean. 309 */ 310 resolved = 1; 311 /* 312 * 1: scan inodes tallying blocks used 313 */ 314 if (preen == 0) { 315 printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 316 if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 317 printf("** Root file system\n"); 318 printf("** Phase 1 - Check Blocks and Sizes\n"); 319 } 320 pass1(); 321 322 /* 323 * 1b: locate first references to duplicates, if any 324 */ 325 if (duplist) { 326 if (preen || usedsoftdep) 327 pfatal("INTERNAL ERROR: dups with -p"); 328 printf("** Phase 1b - Rescan For More DUPS\n"); 329 pass1b(); 330 } 331 332 /* 333 * 2: traverse directories from root to mark all connected directories 334 */ 335 if (preen == 0) 336 printf("** Phase 2 - Check Pathnames\n"); 337 pass2(); 338 339 /* 340 * 3: scan inodes looking for disconnected directories 341 */ 342 if (preen == 0) 343 printf("** Phase 3 - Check Connectivity\n"); 344 pass3(); 345 346 /* 347 * 4: scan inodes looking for disconnected files; check reference counts 348 */ 349 if (preen == 0) 350 printf("** Phase 4 - Check Reference Counts\n"); 351 pass4(); 352 353 /* 354 * 5: check and repair resource counts in cylinder groups 355 */ 356 if (preen == 0) 357 printf("** Phase 5 - Check Cyl groups\n"); 358 pass5(); 359 360 /* 361 * print out summary statistics 362 */ 363 n_ffree = sblock.fs_cstotal.cs_nffree; 364 n_bfree = sblock.fs_cstotal.cs_nbfree; 365 files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 366 blks = n_blks + 367 sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 368 blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 369 blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 370 blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 371 if (bkgrdflag && (files > 0 || blks > 0)) { 372 countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 373 pwarn("Reclaimed: %ld directories, %ld files, %d fragments\n", 374 countdirs, (long)files - countdirs, blks); 375 } 376 pwarn("%ld files, %ld used, %ld free ", 377 (long)n_files, (long)n_blks, (long)(n_ffree + 378 sblock.fs_frag * n_bfree)); 379 printf("(%d frags, %d blocks, %.1f%% fragmentation)\n", 380 n_ffree, n_bfree, n_ffree * 100.0 / sblock.fs_dsize); 381 if (debug) { 382 if (files < 0) 383 printf("%d inodes missing\n", -files); 384 if (blks < 0) 385 printf("%d blocks missing\n", -blks); 386 if (duplist != NULL) { 387 printf("The following duplicate blocks remain:"); 388 for (dp = duplist; dp; dp = dp->next) 389 printf(" %d,", dp->dup); 390 printf("\n"); 391 } 392 if (zlnhead != NULL) { 393 printf("The following zero link count inodes remain:"); 394 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 395 printf(" %u,", zlnp->zlncnt); 396 printf("\n"); 397 } 398 } 399 zlnhead = (struct zlncnt *)0; 400 duplist = (struct dups *)0; 401 muldup = (struct dups *)0; 402 inocleanup(); 403 if (fsmodified) { 404 sblock.fs_time = time(NULL); 405 sbdirty(); 406 } 407 if (cvtlevel && sblk.b_dirty) { 408 /* 409 * Write out the duplicate super blocks 410 */ 411 for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 412 bwrite(fswritefd, (char *)&sblock, 413 fsbtodb(&sblock, cgsblock(&sblock, cylno)), SBSIZE); 414 } 415 if (rerun) 416 resolved = 0; 417 418 /* 419 * Check to see if the filesystem is mounted read-write. 420 */ 421 if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 422 resolved = 0; 423 ckfini(resolved); 424 425 for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 426 if (inostathead[cylno].il_stat != NULL) 427 free((char *)inostathead[cylno].il_stat); 428 free((char *)inostathead); 429 inostathead = NULL; 430 if (fsmodified && !preen) 431 printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 432 if (rerun) 433 printf("\n***** PLEASE RERUN FSCK *****\n"); 434 if (mntp != NULL) { 435 struct ufs_args args; 436 int ret; 437 /* 438 * We modified a mounted filesystem. Do a mount update on 439 * it unless it is read-write, so we can continue using it 440 * as safely as possible. 441 */ 442 if (mntp->f_flags & MNT_RDONLY) { 443 args.fspec = 0; 444 args.export.ex_flags = 0; 445 args.export.ex_root = 0; 446 ret = mount("ufs", mntp->f_mntonname, 447 mntp->f_flags | MNT_UPDATE | MNT_RELOAD, &args); 448 if (ret == 0) 449 return (0); 450 pwarn("mount reload of '%s' failed: %s\n\n", 451 mntp->f_mntonname, strerror(errno)); 452 } 453 if (!fsmodified) 454 return (0); 455 if (!preen) 456 printf("\n***** REBOOT NOW *****\n"); 457 sync(); 458 return (4); 459 } 460 return (0); 461} 462 463/* 464 * Get the mount point information for name. 465 */ 466static struct statfs *
| 181{ 182 ufs_daddr_t n_ffree, n_bfree; 183 struct ufs_args args; 184 struct dups *dp; 185 struct statfs *mntp; 186 struct zlncnt *zlnp; 187 ufs_daddr_t blks; 188 ufs_daddr_t files; 189 int cylno, size; 190 191 cdevname = filesys; 192 if (debug && preen) 193 pwarn("starting\n"); 194 /* 195 * Make best effort to get the disk name. Check first to see 196 * if it is listed among the mounted filesystems. Failing that 197 * check to see if it is listed in /etc/fstab. 198 */ 199 mntp = getmntpt(filesys); 200 if (mntp != NULL) 201 filesys = mntp->f_mntfromname; 202 else 203 filesys = blockcheck(filesys); 204 /* 205 * If -F flag specified, check to see whether a background check 206 * is possible and needed. If possible and needed, exit with 207 * status zero. Otherwise exit with status non-zero. A non-zero 208 * exit status will cause a foreground check to be run. 209 */ 210 sblock_init(); 211 if (bkgrdcheck) { 212 if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0) 213 exit(3); /* Cannot read superblock */ 214 close(fsreadfd); 215 if (sblock.fs_flags & FS_NEEDSFSCK) 216 exit(4); /* Earlier background failed */ 217 if ((sblock.fs_flags & FS_DOSOFTDEP) == 0) 218 exit(5); /* Not running soft updates */ 219 size = MIBSIZE; 220 if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0) 221 exit(6); /* Lacks kernel support */ 222 if ((mntp == NULL && sblock.fs_clean == 1) || 223 (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0)) 224 exit(7); /* Filesystem clean, report it now */ 225 exit(0); 226 } 227 /* 228 * If we are to do a background check: 229 * Get the mount point information of the filesystem 230 * create snapshot file 231 * return created snapshot file 232 * if not found, clear bkgrdflag and proceed with normal fsck 233 */ 234 if (bkgrdflag) { 235 if (mntp == NULL) { 236 bkgrdflag = 0; 237 pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n"); 238 } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) { 239 bkgrdflag = 0; 240 pfatal("NOT USING SOFT UPDATES, %s\n", 241 "CANNOT RUN IN BACKGROUND"); 242 } else if ((mntp->f_flags & MNT_RDONLY) != 0) { 243 bkgrdflag = 0; 244 pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n"); 245 } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) { 246 if (readsb(0) != 0) { 247 if (sblock.fs_flags & FS_NEEDSFSCK) { 248 bkgrdflag = 0; 249 pfatal("UNEXPECTED INCONSISTENCY, %s\n", 250 "CANNOT RUN IN BACKGROUND\n"); 251 } 252 if ((sblock.fs_flags & FS_UNCLEAN) == 0 && 253 skipclean && preen) { 254 /* 255 * filesystem is clean; 256 * skip snapshot and report it clean 257 */ 258 pwarn("FILESYSTEM CLEAN; %s\n", 259 "SKIPPING CHECKS"); 260 goto clean; 261 } 262 } 263 close(fsreadfd); 264 } 265 if (bkgrdflag) { 266 snprintf(snapname, sizeof snapname, "%s/.fsck_snapshot", 267 mntp->f_mntonname); 268 args.fspec = snapname; 269 while (mount("ffs", mntp->f_mntonname, 270 mntp->f_flags | MNT_UPDATE | MNT_SNAPSHOT, 271 &args) < 0) { 272 if (errno == EEXIST && unlink(snapname) == 0) 273 continue; 274 bkgrdflag = 0; 275 pfatal("CANNOT CREATE SNAPSHOT %s: %s\n", 276 snapname, strerror(errno)); 277 break; 278 } 279 if (bkgrdflag != 0) 280 filesys = snapname; 281 } 282 } 283 284 switch (setup(filesys)) { 285 case 0: 286 if (preen) 287 pfatal("CAN'T CHECK FILE SYSTEM."); 288 return (0); 289 case -1: 290 clean: 291 pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree + 292 sblock.fs_frag * sblock.fs_cstotal.cs_nbfree)); 293 printf("(%d frags, %d blocks, %.1f%% fragmentation)\n", 294 sblock.fs_cstotal.cs_nffree, sblock.fs_cstotal.cs_nbfree, 295 sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize); 296 return (0); 297 } 298 299 /* 300 * Cleared if any questions answered no. Used to decide if 301 * the superblock should be marked clean. 302 */ 303 resolved = 1; 304 /* 305 * 1: scan inodes tallying blocks used 306 */ 307 if (preen == 0) { 308 printf("** Last Mounted on %s\n", sblock.fs_fsmnt); 309 if (mntp != NULL && mntp->f_flags & MNT_ROOTFS) 310 printf("** Root file system\n"); 311 printf("** Phase 1 - Check Blocks and Sizes\n"); 312 } 313 pass1(); 314 315 /* 316 * 1b: locate first references to duplicates, if any 317 */ 318 if (duplist) { 319 if (preen || usedsoftdep) 320 pfatal("INTERNAL ERROR: dups with -p"); 321 printf("** Phase 1b - Rescan For More DUPS\n"); 322 pass1b(); 323 } 324 325 /* 326 * 2: traverse directories from root to mark all connected directories 327 */ 328 if (preen == 0) 329 printf("** Phase 2 - Check Pathnames\n"); 330 pass2(); 331 332 /* 333 * 3: scan inodes looking for disconnected directories 334 */ 335 if (preen == 0) 336 printf("** Phase 3 - Check Connectivity\n"); 337 pass3(); 338 339 /* 340 * 4: scan inodes looking for disconnected files; check reference counts 341 */ 342 if (preen == 0) 343 printf("** Phase 4 - Check Reference Counts\n"); 344 pass4(); 345 346 /* 347 * 5: check and repair resource counts in cylinder groups 348 */ 349 if (preen == 0) 350 printf("** Phase 5 - Check Cyl groups\n"); 351 pass5(); 352 353 /* 354 * print out summary statistics 355 */ 356 n_ffree = sblock.fs_cstotal.cs_nffree; 357 n_bfree = sblock.fs_cstotal.cs_nbfree; 358 files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files; 359 blks = n_blks + 360 sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0)); 361 blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0); 362 blks += howmany(sblock.fs_cssize, sblock.fs_fsize); 363 blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks; 364 if (bkgrdflag && (files > 0 || blks > 0)) { 365 countdirs = sblock.fs_cstotal.cs_ndir - countdirs; 366 pwarn("Reclaimed: %ld directories, %ld files, %d fragments\n", 367 countdirs, (long)files - countdirs, blks); 368 } 369 pwarn("%ld files, %ld used, %ld free ", 370 (long)n_files, (long)n_blks, (long)(n_ffree + 371 sblock.fs_frag * n_bfree)); 372 printf("(%d frags, %d blocks, %.1f%% fragmentation)\n", 373 n_ffree, n_bfree, n_ffree * 100.0 / sblock.fs_dsize); 374 if (debug) { 375 if (files < 0) 376 printf("%d inodes missing\n", -files); 377 if (blks < 0) 378 printf("%d blocks missing\n", -blks); 379 if (duplist != NULL) { 380 printf("The following duplicate blocks remain:"); 381 for (dp = duplist; dp; dp = dp->next) 382 printf(" %d,", dp->dup); 383 printf("\n"); 384 } 385 if (zlnhead != NULL) { 386 printf("The following zero link count inodes remain:"); 387 for (zlnp = zlnhead; zlnp; zlnp = zlnp->next) 388 printf(" %u,", zlnp->zlncnt); 389 printf("\n"); 390 } 391 } 392 zlnhead = (struct zlncnt *)0; 393 duplist = (struct dups *)0; 394 muldup = (struct dups *)0; 395 inocleanup(); 396 if (fsmodified) { 397 sblock.fs_time = time(NULL); 398 sbdirty(); 399 } 400 if (cvtlevel && sblk.b_dirty) { 401 /* 402 * Write out the duplicate super blocks 403 */ 404 for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 405 bwrite(fswritefd, (char *)&sblock, 406 fsbtodb(&sblock, cgsblock(&sblock, cylno)), SBSIZE); 407 } 408 if (rerun) 409 resolved = 0; 410 411 /* 412 * Check to see if the filesystem is mounted read-write. 413 */ 414 if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0) 415 resolved = 0; 416 ckfini(resolved); 417 418 for (cylno = 0; cylno < sblock.fs_ncg; cylno++) 419 if (inostathead[cylno].il_stat != NULL) 420 free((char *)inostathead[cylno].il_stat); 421 free((char *)inostathead); 422 inostathead = NULL; 423 if (fsmodified && !preen) 424 printf("\n***** FILE SYSTEM WAS MODIFIED *****\n"); 425 if (rerun) 426 printf("\n***** PLEASE RERUN FSCK *****\n"); 427 if (mntp != NULL) { 428 struct ufs_args args; 429 int ret; 430 /* 431 * We modified a mounted filesystem. Do a mount update on 432 * it unless it is read-write, so we can continue using it 433 * as safely as possible. 434 */ 435 if (mntp->f_flags & MNT_RDONLY) { 436 args.fspec = 0; 437 args.export.ex_flags = 0; 438 args.export.ex_root = 0; 439 ret = mount("ufs", mntp->f_mntonname, 440 mntp->f_flags | MNT_UPDATE | MNT_RELOAD, &args); 441 if (ret == 0) 442 return (0); 443 pwarn("mount reload of '%s' failed: %s\n\n", 444 mntp->f_mntonname, strerror(errno)); 445 } 446 if (!fsmodified) 447 return (0); 448 if (!preen) 449 printf("\n***** REBOOT NOW *****\n"); 450 sync(); 451 return (4); 452 } 453 return (0); 454} 455 456/* 457 * Get the mount point information for name. 458 */ 459static struct statfs *
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467getmntpt(name) 468 const char *name;
| 460getmntpt(const char *name)
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469{ 470 struct stat devstat, mntdevstat; 471 char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 472 char *devname; 473 struct statfs *mntbuf, *statfsp; 474 int i, mntsize, isdev; 475 476 if (stat(name, &devstat) != 0) 477 return (NULL); 478 if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 479 isdev = 1; 480 else 481 isdev = 0; 482 mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 483 for (i = 0; i < mntsize; i++) { 484 statfsp = &mntbuf[i]; 485 devname = statfsp->f_mntfromname; 486 if (*devname != '/') { 487 strcpy(device, _PATH_DEV); 488 strcat(device, devname); 489 strcpy(statfsp->f_mntfromname, device); 490 } 491 if (isdev == 0) { 492 if (strcmp(name, statfsp->f_mntonname)) 493 continue; 494 return (statfsp); 495 } 496 if (stat(devname, &mntdevstat) == 0 && 497 mntdevstat.st_rdev == devstat.st_rdev) 498 return (statfsp); 499 } 500 statfsp = NULL; 501 return (statfsp); 502} 503 504static void
| 461{ 462 struct stat devstat, mntdevstat; 463 char device[sizeof(_PATH_DEV) - 1 + MNAMELEN]; 464 char *devname; 465 struct statfs *mntbuf, *statfsp; 466 int i, mntsize, isdev; 467 468 if (stat(name, &devstat) != 0) 469 return (NULL); 470 if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode)) 471 isdev = 1; 472 else 473 isdev = 0; 474 mntsize = getmntinfo(&mntbuf, MNT_NOWAIT); 475 for (i = 0; i < mntsize; i++) { 476 statfsp = &mntbuf[i]; 477 devname = statfsp->f_mntfromname; 478 if (*devname != '/') { 479 strcpy(device, _PATH_DEV); 480 strcat(device, devname); 481 strcpy(statfsp->f_mntfromname, device); 482 } 483 if (isdev == 0) { 484 if (strcmp(name, statfsp->f_mntonname)) 485 continue; 486 return (statfsp); 487 } 488 if (stat(devname, &mntdevstat) == 0 && 489 mntdevstat.st_rdev == devstat.st_rdev) 490 return (statfsp); 491 } 492 statfsp = NULL; 493 return (statfsp); 494} 495 496static void
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505usage()
| 497usage(void)
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506{ 507 extern char *__progname; 508 509 (void) fprintf(stderr, 510 "Usage: %s [-BFpfny] [-b block] [-c level] [-m mode] " 511 "filesystem ...\n", 512 __progname); 513 exit(1); 514}
| 498{ 499 extern char *__progname; 500 501 (void) fprintf(stderr, 502 "Usage: %s [-BFpfny] [-b block] [-c level] [-m mode] " 503 "filesystem ...\n", 504 __progname); 505 exit(1); 506}
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