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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if 0
31#ifndef lint
32static const char copyright[] =
33"@(#) Copyright (c) 1980, 1986, 1993\n\
34 The Regents of the University of California. All rights reserved.\n";
35#endif /* not lint */
36
37#ifndef lint
38static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95";
39#endif /* not lint */
40#endif
41#include <sys/cdefs.h>
| 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 * 4. Neither the name of the University nor the names of its contributors
14 * may be used to endorse or promote products derived from this software
15 * without specific prior written permission.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#if 0
31#ifndef lint
32static const char copyright[] =
33"@(#) Copyright (c) 1980, 1986, 1993\n\
34 The Regents of the University of California. All rights reserved.\n";
35#endif /* not lint */
36
37#ifndef lint
38static char sccsid[] = "@(#)main.c 8.6 (Berkeley) 5/14/95";
39#endif /* not lint */
40#endif
41#include <sys/cdefs.h>
|
42__FBSDID("$FreeBSD: head/sbin/fsck_ffs/main.c 141611 2005-02-10 09:19:34Z ru $");
| 42__FBSDID("$FreeBSD: head/sbin/fsck_ffs/main.c 163845 2006-10-31 22:06:56Z pjd $");
|
43
44#include <sys/param.h>
45#include <sys/stat.h>
46#include <sys/file.h>
47#include <sys/time.h>
48#include <sys/mount.h>
49#include <sys/resource.h>
50#include <sys/sysctl.h>
51#include <sys/disklabel.h>
52
53#include <ufs/ufs/dinode.h>
54#include <ufs/ufs/ufsmount.h>
55#include <ufs/ffs/fs.h>
56
57#include <err.h>
58#include <errno.h>
59#include <fstab.h>
60#include <grp.h>
61#include <paths.h>
62#include <stdint.h>
63#include <string.h>
64
65#include "fsck.h"
66
67static void usage(void) __dead2;
68static int argtoi(int flag, const char *req, const char *str, int base);
69static int checkfilesys(char *filesys);
70static struct statfs *getmntpt(const char *);
71
72int
73main(int argc, char *argv[])
74{
75 int ch;
76 struct rlimit rlimit;
77 struct itimerval itimerval;
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 if (cvtlevel < 3)
98 errx(EEXIT, "cannot do level %d conversion",
99 cvtlevel);
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 if (bkgrdflag) {
151 signal(SIGALRM, alarmhandler);
152 itimerval.it_interval.tv_sec = 5;
153 itimerval.it_interval.tv_usec = 0;
154 itimerval.it_value.tv_sec = 5;
155 itimerval.it_value.tv_usec = 0;
156 setitimer(ITIMER_REAL, &itimerval, NULL);
157 }
158 /*
159 * Push up our allowed memory limit so we can cope
160 * with huge file systems.
161 */
162 if (getrlimit(RLIMIT_DATA, &rlimit) == 0) {
163 rlimit.rlim_cur = rlimit.rlim_max;
164 (void)setrlimit(RLIMIT_DATA, &rlimit);
165 }
166 while (argc-- > 0)
167 (void)checkfilesys(*argv++);
168
169 if (returntosingle)
170 ret = 2;
171 exit(ret);
172}
173
174static int
175argtoi(int flag, const char *req, const char *str, int base)
176{
177 char *cp;
178 int ret;
179
180 ret = (int)strtol(str, &cp, base);
181 if (cp == str || *cp)
182 errx(EEXIT, "-%c flag requires a %s", flag, req);
183 return (ret);
184}
185
186/*
187 * Check the specified file system.
188 */
189/* ARGSUSED */
190static int
191checkfilesys(char *filesys)
192{
193 ufs2_daddr_t n_ffree, n_bfree;
194 struct ufs_args args;
195 struct dups *dp;
196 struct statfs *mntp;
197 struct stat snapdir;
198 struct group *grp;
199 ufs2_daddr_t blks;
200 int cylno, ret;
201 ino_t files;
202 size_t size;
203
204 cdevname = filesys;
205 if (debug && preen)
206 pwarn("starting\n");
207 /*
208 * Make best effort to get the disk name. Check first to see
209 * if it is listed among the mounted file systems. Failing that
210 * check to see if it is listed in /etc/fstab.
211 */
212 mntp = getmntpt(filesys);
213 if (mntp != NULL)
214 filesys = mntp->f_mntfromname;
215 else
216 filesys = blockcheck(filesys);
217 /*
218 * If -F flag specified, check to see whether a background check
219 * is possible and needed. If possible and needed, exit with
220 * status zero. Otherwise exit with status non-zero. A non-zero
221 * exit status will cause a foreground check to be run.
222 */
223 sblock_init();
224 if (bkgrdcheck) {
225 if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0)
226 exit(3); /* Cannot read superblock */
227 close(fsreadfd);
228 if (sblock.fs_flags & FS_NEEDSFSCK)
229 exit(4); /* Earlier background failed */
230 if ((sblock.fs_flags & FS_DOSOFTDEP) == 0)
231 exit(5); /* Not running soft updates */
232 size = MIBSIZE;
233 if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0)
234 exit(6); /* Lacks kernel support */
235 if ((mntp == NULL && sblock.fs_clean == 1) ||
236 (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0))
237 exit(7); /* Filesystem clean, report it now */
238 exit(0);
239 }
| 43
44#include <sys/param.h>
45#include <sys/stat.h>
46#include <sys/file.h>
47#include <sys/time.h>
48#include <sys/mount.h>
49#include <sys/resource.h>
50#include <sys/sysctl.h>
51#include <sys/disklabel.h>
52
53#include <ufs/ufs/dinode.h>
54#include <ufs/ufs/ufsmount.h>
55#include <ufs/ffs/fs.h>
56
57#include <err.h>
58#include <errno.h>
59#include <fstab.h>
60#include <grp.h>
61#include <paths.h>
62#include <stdint.h>
63#include <string.h>
64
65#include "fsck.h"
66
67static void usage(void) __dead2;
68static int argtoi(int flag, const char *req, const char *str, int base);
69static int checkfilesys(char *filesys);
70static struct statfs *getmntpt(const char *);
71
72int
73main(int argc, char *argv[])
74{
75 int ch;
76 struct rlimit rlimit;
77 struct itimerval itimerval;
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 if (cvtlevel < 3)
98 errx(EEXIT, "cannot do level %d conversion",
99 cvtlevel);
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 if (bkgrdflag) {
151 signal(SIGALRM, alarmhandler);
152 itimerval.it_interval.tv_sec = 5;
153 itimerval.it_interval.tv_usec = 0;
154 itimerval.it_value.tv_sec = 5;
155 itimerval.it_value.tv_usec = 0;
156 setitimer(ITIMER_REAL, &itimerval, NULL);
157 }
158 /*
159 * Push up our allowed memory limit so we can cope
160 * with huge file systems.
161 */
162 if (getrlimit(RLIMIT_DATA, &rlimit) == 0) {
163 rlimit.rlim_cur = rlimit.rlim_max;
164 (void)setrlimit(RLIMIT_DATA, &rlimit);
165 }
166 while (argc-- > 0)
167 (void)checkfilesys(*argv++);
168
169 if (returntosingle)
170 ret = 2;
171 exit(ret);
172}
173
174static int
175argtoi(int flag, const char *req, const char *str, int base)
176{
177 char *cp;
178 int ret;
179
180 ret = (int)strtol(str, &cp, base);
181 if (cp == str || *cp)
182 errx(EEXIT, "-%c flag requires a %s", flag, req);
183 return (ret);
184}
185
186/*
187 * Check the specified file system.
188 */
189/* ARGSUSED */
190static int
191checkfilesys(char *filesys)
192{
193 ufs2_daddr_t n_ffree, n_bfree;
194 struct ufs_args args;
195 struct dups *dp;
196 struct statfs *mntp;
197 struct stat snapdir;
198 struct group *grp;
199 ufs2_daddr_t blks;
200 int cylno, ret;
201 ino_t files;
202 size_t size;
203
204 cdevname = filesys;
205 if (debug && preen)
206 pwarn("starting\n");
207 /*
208 * Make best effort to get the disk name. Check first to see
209 * if it is listed among the mounted file systems. Failing that
210 * check to see if it is listed in /etc/fstab.
211 */
212 mntp = getmntpt(filesys);
213 if (mntp != NULL)
214 filesys = mntp->f_mntfromname;
215 else
216 filesys = blockcheck(filesys);
217 /*
218 * If -F flag specified, check to see whether a background check
219 * is possible and needed. If possible and needed, exit with
220 * status zero. Otherwise exit with status non-zero. A non-zero
221 * exit status will cause a foreground check to be run.
222 */
223 sblock_init();
224 if (bkgrdcheck) {
225 if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0)
226 exit(3); /* Cannot read superblock */
227 close(fsreadfd);
228 if (sblock.fs_flags & FS_NEEDSFSCK)
229 exit(4); /* Earlier background failed */
230 if ((sblock.fs_flags & FS_DOSOFTDEP) == 0)
231 exit(5); /* Not running soft updates */
232 size = MIBSIZE;
233 if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0)
234 exit(6); /* Lacks kernel support */
235 if ((mntp == NULL && sblock.fs_clean == 1) ||
236 (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0))
237 exit(7); /* Filesystem clean, report it now */
238 exit(0);
239 }
|
| 240 if (preen && skipclean) {
241 /*
242 * If file system is gjournaled, check it here.
243 */
244 if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0)
245 exit(3); /* Cannot read superblock */
246 close(fsreadfd);
247 if ((sblock.fs_flags & FS_GJOURNAL) != 0) {
248 //printf("GJournaled file system detected on %s.\n",
249 // filesys);
250 if (sblock.fs_clean == 1) {
251 pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n");
252 exit(0);
253 }
254 if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) {
255 gjournal_check(filesys);
256 exit(0);
257 } else {
258 pfatal("UNEXPECTED INCONSISTENCY, %s\n",
259 "CANNOT RUN FAST FSCK\n");
260 }
261 }
262 }
|
240 /*
241 * If we are to do a background check:
242 * Get the mount point information of the file system
243 * create snapshot file
244 * return created snapshot file
245 * if not found, clear bkgrdflag and proceed with normal fsck
246 */
247 if (bkgrdflag) {
248 if (mntp == NULL) {
249 bkgrdflag = 0;
250 pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n");
251 } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) {
252 bkgrdflag = 0;
253 pfatal("NOT USING SOFT UPDATES, %s\n",
254 "CANNOT RUN IN BACKGROUND");
255 } else if ((mntp->f_flags & MNT_RDONLY) != 0) {
256 bkgrdflag = 0;
257 pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n");
258 } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) {
259 if (readsb(0) != 0) {
260 if (sblock.fs_flags & FS_NEEDSFSCK) {
261 bkgrdflag = 0;
262 pfatal("UNEXPECTED INCONSISTENCY, %s\n",
263 "CANNOT RUN IN BACKGROUND\n");
264 }
265 if ((sblock.fs_flags & FS_UNCLEAN) == 0 &&
266 skipclean && preen) {
267 /*
268 * file system is clean;
269 * skip snapshot and report it clean
270 */
271 pwarn("FILE SYSTEM CLEAN; %s\n",
272 "SKIPPING CHECKS");
273 goto clean;
274 }
275 }
276 close(fsreadfd);
277 }
278 if (bkgrdflag) {
279 snprintf(snapname, sizeof snapname, "%s/.snap",
280 mntp->f_mntonname);
281 if (stat(snapname, &snapdir) < 0) {
282 if (errno != ENOENT) {
283 bkgrdflag = 0;
284 pfatal("CANNOT FIND %s %s: %s, %s\n",
285 "SNAPSHOT DIRECTORY",
286 snapname, strerror(errno),
287 "CANNOT RUN IN BACKGROUND");
288 } else if ((grp = getgrnam("operator")) == 0 ||
289 mkdir(snapname, 0770) < 0 ||
290 chown(snapname, -1, grp->gr_gid) < 0 ||
291 chmod(snapname, 0770) < 0) {
292 bkgrdflag = 0;
293 pfatal("CANNOT CREATE %s %s: %s, %s\n",
294 "SNAPSHOT DIRECTORY",
295 snapname, strerror(errno),
296 "CANNOT RUN IN BACKGROUND");
297 }
298 } else if (!S_ISDIR(snapdir.st_mode)) {
299 bkgrdflag = 0;
300 pfatal("%s IS NOT A DIRECTORY, %s\n", snapname,
301 "CANNOT RUN IN BACKGROUND");
302 }
303 }
304 if (bkgrdflag) {
305 snprintf(snapname, sizeof snapname,
306 "%s/.snap/fsck_snapshot", mntp->f_mntonname);
307 memset(&args, 0, sizeof args);
308 args.fspec = snapname;
309 while (mount("ffs", mntp->f_mntonname,
310 mntp->f_flags | MNT_UPDATE | MNT_SNAPSHOT,
311 &args) < 0) {
312 if (errno == EEXIST && unlink(snapname) == 0)
313 continue;
314 bkgrdflag = 0;
315 pfatal("CANNOT CREATE SNAPSHOT %s: %s\n",
316 snapname, strerror(errno));
317 break;
318 }
319 if (bkgrdflag != 0)
320 filesys = snapname;
321 }
322 }
323
324 switch (setup(filesys)) {
325 case 0:
326 if (preen)
327 pfatal("CAN'T CHECK FILE SYSTEM.");
328 return (0);
329 case -1:
330 clean:
331 pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree +
332 sblock.fs_frag * sblock.fs_cstotal.cs_nbfree));
333 printf("(%lld frags, %lld blocks, %.1f%% fragmentation)\n",
334 (long long)sblock.fs_cstotal.cs_nffree,
335 (long long)sblock.fs_cstotal.cs_nbfree,
336 sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize);
337 return (0);
338 }
339
340 /*
341 * Cleared if any questions answered no. Used to decide if
342 * the superblock should be marked clean.
343 */
344 resolved = 1;
345 /*
346 * 1: scan inodes tallying blocks used
347 */
348 if (preen == 0) {
349 printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
350 if (mntp != NULL && mntp->f_flags & MNT_ROOTFS)
351 printf("** Root file system\n");
352 printf("** Phase 1 - Check Blocks and Sizes\n");
353 }
354 pass1();
355
356 /*
357 * 1b: locate first references to duplicates, if any
358 */
359 if (duplist) {
360 if (preen || usedsoftdep)
361 pfatal("INTERNAL ERROR: dups with -p");
362 printf("** Phase 1b - Rescan For More DUPS\n");
363 pass1b();
364 }
365
366 /*
367 * 2: traverse directories from root to mark all connected directories
368 */
369 if (preen == 0)
370 printf("** Phase 2 - Check Pathnames\n");
371 pass2();
372
373 /*
374 * 3: scan inodes looking for disconnected directories
375 */
376 if (preen == 0)
377 printf("** Phase 3 - Check Connectivity\n");
378 pass3();
379
380 /*
381 * 4: scan inodes looking for disconnected files; check reference counts
382 */
383 if (preen == 0)
384 printf("** Phase 4 - Check Reference Counts\n");
385 pass4();
386
387 /*
388 * 5: check and repair resource counts in cylinder groups
389 */
390 if (preen == 0)
391 printf("** Phase 5 - Check Cyl groups\n");
392 pass5();
393
394 /*
395 * print out summary statistics
396 */
397 n_ffree = sblock.fs_cstotal.cs_nffree;
398 n_bfree = sblock.fs_cstotal.cs_nbfree;
399 files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files;
400 blks = n_blks +
401 sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0));
402 blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);
403 blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
404 blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks;
405 if (bkgrdflag && (files > 0 || blks > 0)) {
406 countdirs = sblock.fs_cstotal.cs_ndir - countdirs;
407 pwarn("Reclaimed: %ld directories, %ld files, %lld fragments\n",
408 countdirs, (long)files - countdirs, (long long)blks);
409 }
410 pwarn("%ld files, %jd used, %ju free ",
411 (long)n_files, (intmax_t)n_blks,
412 (uintmax_t)n_ffree + sblock.fs_frag * n_bfree);
413 printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n",
414 (uintmax_t)n_ffree, (uintmax_t)n_bfree,
415 n_ffree * 100.0 / sblock.fs_dsize);
416 if (debug) {
417 if (files < 0)
418 printf("%d inodes missing\n", -files);
419 if (blks < 0)
420 printf("%lld blocks missing\n", -(long long)blks);
421 if (duplist != NULL) {
422 printf("The following duplicate blocks remain:");
423 for (dp = duplist; dp; dp = dp->next)
424 printf(" %lld,", (long long)dp->dup);
425 printf("\n");
426 }
427 }
428 duplist = (struct dups *)0;
429 muldup = (struct dups *)0;
430 inocleanup();
431 if (fsmodified) {
432 sblock.fs_time = time(NULL);
433 sbdirty();
434 }
435 if (cvtlevel && sblk.b_dirty) {
436 /*
437 * Write out the duplicate super blocks
438 */
439 for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
| 263 /*
264 * If we are to do a background check:
265 * Get the mount point information of the file system
266 * create snapshot file
267 * return created snapshot file
268 * if not found, clear bkgrdflag and proceed with normal fsck
269 */
270 if (bkgrdflag) {
271 if (mntp == NULL) {
272 bkgrdflag = 0;
273 pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n");
274 } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) {
275 bkgrdflag = 0;
276 pfatal("NOT USING SOFT UPDATES, %s\n",
277 "CANNOT RUN IN BACKGROUND");
278 } else if ((mntp->f_flags & MNT_RDONLY) != 0) {
279 bkgrdflag = 0;
280 pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n");
281 } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) {
282 if (readsb(0) != 0) {
283 if (sblock.fs_flags & FS_NEEDSFSCK) {
284 bkgrdflag = 0;
285 pfatal("UNEXPECTED INCONSISTENCY, %s\n",
286 "CANNOT RUN IN BACKGROUND\n");
287 }
288 if ((sblock.fs_flags & FS_UNCLEAN) == 0 &&
289 skipclean && preen) {
290 /*
291 * file system is clean;
292 * skip snapshot and report it clean
293 */
294 pwarn("FILE SYSTEM CLEAN; %s\n",
295 "SKIPPING CHECKS");
296 goto clean;
297 }
298 }
299 close(fsreadfd);
300 }
301 if (bkgrdflag) {
302 snprintf(snapname, sizeof snapname, "%s/.snap",
303 mntp->f_mntonname);
304 if (stat(snapname, &snapdir) < 0) {
305 if (errno != ENOENT) {
306 bkgrdflag = 0;
307 pfatal("CANNOT FIND %s %s: %s, %s\n",
308 "SNAPSHOT DIRECTORY",
309 snapname, strerror(errno),
310 "CANNOT RUN IN BACKGROUND");
311 } else if ((grp = getgrnam("operator")) == 0 ||
312 mkdir(snapname, 0770) < 0 ||
313 chown(snapname, -1, grp->gr_gid) < 0 ||
314 chmod(snapname, 0770) < 0) {
315 bkgrdflag = 0;
316 pfatal("CANNOT CREATE %s %s: %s, %s\n",
317 "SNAPSHOT DIRECTORY",
318 snapname, strerror(errno),
319 "CANNOT RUN IN BACKGROUND");
320 }
321 } else if (!S_ISDIR(snapdir.st_mode)) {
322 bkgrdflag = 0;
323 pfatal("%s IS NOT A DIRECTORY, %s\n", snapname,
324 "CANNOT RUN IN BACKGROUND");
325 }
326 }
327 if (bkgrdflag) {
328 snprintf(snapname, sizeof snapname,
329 "%s/.snap/fsck_snapshot", mntp->f_mntonname);
330 memset(&args, 0, sizeof args);
331 args.fspec = snapname;
332 while (mount("ffs", mntp->f_mntonname,
333 mntp->f_flags | MNT_UPDATE | MNT_SNAPSHOT,
334 &args) < 0) {
335 if (errno == EEXIST && unlink(snapname) == 0)
336 continue;
337 bkgrdflag = 0;
338 pfatal("CANNOT CREATE SNAPSHOT %s: %s\n",
339 snapname, strerror(errno));
340 break;
341 }
342 if (bkgrdflag != 0)
343 filesys = snapname;
344 }
345 }
346
347 switch (setup(filesys)) {
348 case 0:
349 if (preen)
350 pfatal("CAN'T CHECK FILE SYSTEM.");
351 return (0);
352 case -1:
353 clean:
354 pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree +
355 sblock.fs_frag * sblock.fs_cstotal.cs_nbfree));
356 printf("(%lld frags, %lld blocks, %.1f%% fragmentation)\n",
357 (long long)sblock.fs_cstotal.cs_nffree,
358 (long long)sblock.fs_cstotal.cs_nbfree,
359 sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize);
360 return (0);
361 }
362
363 /*
364 * Cleared if any questions answered no. Used to decide if
365 * the superblock should be marked clean.
366 */
367 resolved = 1;
368 /*
369 * 1: scan inodes tallying blocks used
370 */
371 if (preen == 0) {
372 printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
373 if (mntp != NULL && mntp->f_flags & MNT_ROOTFS)
374 printf("** Root file system\n");
375 printf("** Phase 1 - Check Blocks and Sizes\n");
376 }
377 pass1();
378
379 /*
380 * 1b: locate first references to duplicates, if any
381 */
382 if (duplist) {
383 if (preen || usedsoftdep)
384 pfatal("INTERNAL ERROR: dups with -p");
385 printf("** Phase 1b - Rescan For More DUPS\n");
386 pass1b();
387 }
388
389 /*
390 * 2: traverse directories from root to mark all connected directories
391 */
392 if (preen == 0)
393 printf("** Phase 2 - Check Pathnames\n");
394 pass2();
395
396 /*
397 * 3: scan inodes looking for disconnected directories
398 */
399 if (preen == 0)
400 printf("** Phase 3 - Check Connectivity\n");
401 pass3();
402
403 /*
404 * 4: scan inodes looking for disconnected files; check reference counts
405 */
406 if (preen == 0)
407 printf("** Phase 4 - Check Reference Counts\n");
408 pass4();
409
410 /*
411 * 5: check and repair resource counts in cylinder groups
412 */
413 if (preen == 0)
414 printf("** Phase 5 - Check Cyl groups\n");
415 pass5();
416
417 /*
418 * print out summary statistics
419 */
420 n_ffree = sblock.fs_cstotal.cs_nffree;
421 n_bfree = sblock.fs_cstotal.cs_nbfree;
422 files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files;
423 blks = n_blks +
424 sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0));
425 blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);
426 blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
427 blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks;
428 if (bkgrdflag && (files > 0 || blks > 0)) {
429 countdirs = sblock.fs_cstotal.cs_ndir - countdirs;
430 pwarn("Reclaimed: %ld directories, %ld files, %lld fragments\n",
431 countdirs, (long)files - countdirs, (long long)blks);
432 }
433 pwarn("%ld files, %jd used, %ju free ",
434 (long)n_files, (intmax_t)n_blks,
435 (uintmax_t)n_ffree + sblock.fs_frag * n_bfree);
436 printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n",
437 (uintmax_t)n_ffree, (uintmax_t)n_bfree,
438 n_ffree * 100.0 / sblock.fs_dsize);
439 if (debug) {
440 if (files < 0)
441 printf("%d inodes missing\n", -files);
442 if (blks < 0)
443 printf("%lld blocks missing\n", -(long long)blks);
444 if (duplist != NULL) {
445 printf("The following duplicate blocks remain:");
446 for (dp = duplist; dp; dp = dp->next)
447 printf(" %lld,", (long long)dp->dup);
448 printf("\n");
449 }
450 }
451 duplist = (struct dups *)0;
452 muldup = (struct dups *)0;
453 inocleanup();
454 if (fsmodified) {
455 sblock.fs_time = time(NULL);
456 sbdirty();
457 }
458 if (cvtlevel && sblk.b_dirty) {
459 /*
460 * Write out the duplicate super blocks
461 */
462 for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
|
440 bwrite(fswritefd, (char *)&sblock,
| 463 blwrite(fswritefd, (char *)&sblock,
|
441 fsbtodb(&sblock, cgsblock(&sblock, cylno)),
442 SBLOCKSIZE);
443 }
444 if (rerun)
445 resolved = 0;
446
447 /*
448 * Check to see if the file system is mounted read-write.
449 */
450 if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0)
451 resolved = 0;
452 ckfini(resolved);
453
454 for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
455 if (inostathead[cylno].il_stat != NULL)
456 free((char *)inostathead[cylno].il_stat);
457 free((char *)inostathead);
458 inostathead = NULL;
459 if (fsmodified && !preen)
460 printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
461 if (rerun)
462 printf("\n***** PLEASE RERUN FSCK *****\n");
463 if (mntp != NULL) {
464 /*
465 * We modified a mounted file system. Do a mount update on
466 * it unless it is read-write, so we can continue using it
467 * as safely as possible.
468 */
469 if (mntp->f_flags & MNT_RDONLY) {
470 args.fspec = 0;
471 args.export.ex_flags = 0;
472 args.export.ex_root = 0;
473 ret = mount("ufs", mntp->f_mntonname,
474 mntp->f_flags | MNT_UPDATE | MNT_RELOAD, &args);
475 if (ret == 0)
476 return (0);
477 pwarn("mount reload of '%s' failed: %s\n\n",
478 mntp->f_mntonname, strerror(errno));
479 }
480 if (!fsmodified)
481 return (0);
482 if (!preen)
483 printf("\n***** REBOOT NOW *****\n");
484 sync();
485 return (4);
486 }
487 return (0);
488}
489
490/*
491 * Get the mount point information for name.
492 */
493static struct statfs *
494getmntpt(const char *name)
495{
496 struct stat devstat, mntdevstat;
497 char device[sizeof(_PATH_DEV) - 1 + MNAMELEN];
498 char *ddevname;
499 struct statfs *mntbuf, *statfsp;
500 int i, mntsize, isdev;
501
502 if (stat(name, &devstat) != 0)
503 return (NULL);
504 if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode))
505 isdev = 1;
506 else
507 isdev = 0;
508 mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
509 for (i = 0; i < mntsize; i++) {
510 statfsp = &mntbuf[i];
511 ddevname = statfsp->f_mntfromname;
512 if (*ddevname != '/') {
513 strcpy(device, _PATH_DEV);
514 strcat(device, ddevname);
515 strcpy(statfsp->f_mntfromname, device);
516 }
517 if (isdev == 0) {
518 if (strcmp(name, statfsp->f_mntonname))
519 continue;
520 return (statfsp);
521 }
522 if (stat(ddevname, &mntdevstat) == 0 &&
523 mntdevstat.st_rdev == devstat.st_rdev)
524 return (statfsp);
525 }
526 statfsp = NULL;
527 return (statfsp);
528}
529
530static void
531usage(void)
532{
533 (void) fprintf(stderr,
534 "usage: %s [-BFpfny] [-b block] [-c level] [-m mode] "
535 "filesystem ...\n",
536 getprogname());
537 exit(1);
538}
| 464 fsbtodb(&sblock, cgsblock(&sblock, cylno)),
465 SBLOCKSIZE);
466 }
467 if (rerun)
468 resolved = 0;
469
470 /*
471 * Check to see if the file system is mounted read-write.
472 */
473 if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0)
474 resolved = 0;
475 ckfini(resolved);
476
477 for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
478 if (inostathead[cylno].il_stat != NULL)
479 free((char *)inostathead[cylno].il_stat);
480 free((char *)inostathead);
481 inostathead = NULL;
482 if (fsmodified && !preen)
483 printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
484 if (rerun)
485 printf("\n***** PLEASE RERUN FSCK *****\n");
486 if (mntp != NULL) {
487 /*
488 * We modified a mounted file system. Do a mount update on
489 * it unless it is read-write, so we can continue using it
490 * as safely as possible.
491 */
492 if (mntp->f_flags & MNT_RDONLY) {
493 args.fspec = 0;
494 args.export.ex_flags = 0;
495 args.export.ex_root = 0;
496 ret = mount("ufs", mntp->f_mntonname,
497 mntp->f_flags | MNT_UPDATE | MNT_RELOAD, &args);
498 if (ret == 0)
499 return (0);
500 pwarn("mount reload of '%s' failed: %s\n\n",
501 mntp->f_mntonname, strerror(errno));
502 }
503 if (!fsmodified)
504 return (0);
505 if (!preen)
506 printf("\n***** REBOOT NOW *****\n");
507 sync();
508 return (4);
509 }
510 return (0);
511}
512
513/*
514 * Get the mount point information for name.
515 */
516static struct statfs *
517getmntpt(const char *name)
518{
519 struct stat devstat, mntdevstat;
520 char device[sizeof(_PATH_DEV) - 1 + MNAMELEN];
521 char *ddevname;
522 struct statfs *mntbuf, *statfsp;
523 int i, mntsize, isdev;
524
525 if (stat(name, &devstat) != 0)
526 return (NULL);
527 if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode))
528 isdev = 1;
529 else
530 isdev = 0;
531 mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
532 for (i = 0; i < mntsize; i++) {
533 statfsp = &mntbuf[i];
534 ddevname = statfsp->f_mntfromname;
535 if (*ddevname != '/') {
536 strcpy(device, _PATH_DEV);
537 strcat(device, ddevname);
538 strcpy(statfsp->f_mntfromname, device);
539 }
540 if (isdev == 0) {
541 if (strcmp(name, statfsp->f_mntonname))
542 continue;
543 return (statfsp);
544 }
545 if (stat(ddevname, &mntdevstat) == 0 &&
546 mntdevstat.st_rdev == devstat.st_rdev)
547 return (statfsp);
548 }
549 statfsp = NULL;
550 return (statfsp);
551}
552
553static void
554usage(void)
555{
556 (void) fprintf(stderr,
557 "usage: %s [-BFpfny] [-b block] [-c level] [-m mode] "
558 "filesystem ...\n",
559 getprogname());
560 exit(1);
561}
|