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: stable/10/sbin/fsck_ffs/main.c 253822 2013-07-30 22:57:12Z scottl $");
| 42__FBSDID("$FreeBSD: stable/10/sbin/fsck_ffs/main.c 260178 2014-01-02 01:44:14Z scottl $");
|
43
44#include <sys/param.h>
45#include <sys/file.h>
46#include <sys/mount.h>
47#include <sys/resource.h>
48#include <sys/stat.h>
49#include <sys/sysctl.h>
50#include <sys/uio.h>
51#include <sys/disklabel.h>
52
53#include <ufs/ufs/dinode.h>
54#include <ufs/ffs/fs.h>
55
56#include <err.h>
57#include <errno.h>
58#include <fstab.h>
59#include <grp.h>
60#include <mntopts.h>
61#include <paths.h>
62#include <stdint.h>
63#include <string.h>
64#include <time.h>
65
66#include "fsck.h"
67
| 43
44#include <sys/param.h>
45#include <sys/file.h>
46#include <sys/mount.h>
47#include <sys/resource.h>
48#include <sys/stat.h>
49#include <sys/sysctl.h>
50#include <sys/uio.h>
51#include <sys/disklabel.h>
52
53#include <ufs/ufs/dinode.h>
54#include <ufs/ffs/fs.h>
55
56#include <err.h>
57#include <errno.h>
58#include <fstab.h>
59#include <grp.h>
60#include <mntopts.h>
61#include <paths.h>
62#include <stdint.h>
63#include <string.h>
64#include <time.h>
65
66#include "fsck.h"
67
|
| 68int restarts;
69
|
68static void usage(void) __dead2;
69static int argtoi(int flag, const char *req, const char *str, int base);
70static int checkfilesys(char *filesys);
71static int chkdoreload(struct statfs *mntp);
72static struct statfs *getmntpt(const char *);
73
74int
75main(int argc, char *argv[])
76{
77 int ch;
78 struct rlimit rlimit;
79 struct itimerval itimerval;
80 int ret = 0;
81
82 sync();
83 skipclean = 1;
84 inoopt = 0;
| 70static void usage(void) __dead2;
71static int argtoi(int flag, const char *req, const char *str, int base);
72static int checkfilesys(char *filesys);
73static int chkdoreload(struct statfs *mntp);
74static struct statfs *getmntpt(const char *);
75
76int
77main(int argc, char *argv[])
78{
79 int ch;
80 struct rlimit rlimit;
81 struct itimerval itimerval;
82 int ret = 0;
83
84 sync();
85 skipclean = 1;
86 inoopt = 0;
|
85 while ((ch = getopt(argc, argv, "b:Bc:CdEfFm:nprSyZ")) != -1) {
| 87 while ((ch = getopt(argc, argv, "b:Bc:CdEfFm:npRrSyZ")) != -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 if (cvtlevel < 3)
101 errx(EEXIT, "cannot do level %d conversion",
102 cvtlevel);
103 break;
104
105 case 'd':
106 debug++;
107 break;
108
109 case 'E':
110 Eflag++;
111 break;
112
113 case 'f':
114 skipclean = 0;
115 break;
116
117 case 'F':
118 bkgrdcheck = 1;
119 break;
120
121 case 'm':
122 lfmode = argtoi('m', "mode", optarg, 8);
123 if (lfmode &~ 07777)
124 errx(EEXIT, "bad mode to -m: %o", lfmode);
125 printf("** lost+found creation mode %o\n", lfmode);
126 break;
127
128 case 'n':
129 nflag++;
130 yflag = 0;
131 break;
132
133 case 'p':
134 preen++;
135 /*FALLTHROUGH*/
136
137 case 'C':
138 ckclean++;
139 break;
140
| 88 switch (ch) {
89 case 'b':
90 skipclean = 0;
91 bflag = argtoi('b', "number", optarg, 10);
92 printf("Alternate super block location: %d\n", bflag);
93 break;
94
95 case 'B':
96 bkgrdflag = 1;
97 break;
98
99 case 'c':
100 skipclean = 0;
101 cvtlevel = argtoi('c', "conversion level", optarg, 10);
102 if (cvtlevel < 3)
103 errx(EEXIT, "cannot do level %d conversion",
104 cvtlevel);
105 break;
106
107 case 'd':
108 debug++;
109 break;
110
111 case 'E':
112 Eflag++;
113 break;
114
115 case 'f':
116 skipclean = 0;
117 break;
118
119 case 'F':
120 bkgrdcheck = 1;
121 break;
122
123 case 'm':
124 lfmode = argtoi('m', "mode", optarg, 8);
125 if (lfmode &~ 07777)
126 errx(EEXIT, "bad mode to -m: %o", lfmode);
127 printf("** lost+found creation mode %o\n", lfmode);
128 break;
129
130 case 'n':
131 nflag++;
132 yflag = 0;
133 break;
134
135 case 'p':
136 preen++;
137 /*FALLTHROUGH*/
138
139 case 'C':
140 ckclean++;
141 break;
142
|
| 143 case 'R':
144 wantrestart = 1;
145 break;
|
141 case 'r':
142 inoopt++;
143 break;
144
145 case 'S':
146 surrender = 1;
147 break;
148
149 case 'y':
150 yflag++;
151 nflag = 0;
152 break;
153
154 case 'Z':
155 Zflag++;
156 break;
157
158 default:
159 usage();
160 }
161 }
162 argc -= optind;
163 argv += optind;
164
165 if (!argc)
166 usage();
167
168 if (signal(SIGINT, SIG_IGN) != SIG_IGN)
169 (void)signal(SIGINT, catch);
170 if (ckclean)
171 (void)signal(SIGQUIT, catchquit);
172 signal(SIGINFO, infohandler);
173 if (bkgrdflag) {
174 signal(SIGALRM, alarmhandler);
175 itimerval.it_interval.tv_sec = 5;
176 itimerval.it_interval.tv_usec = 0;
177 itimerval.it_value.tv_sec = 5;
178 itimerval.it_value.tv_usec = 0;
179 setitimer(ITIMER_REAL, &itimerval, NULL);
180 }
181 /*
182 * Push up our allowed memory limit so we can cope
183 * with huge file systems.
184 */
185 if (getrlimit(RLIMIT_DATA, &rlimit) == 0) {
186 rlimit.rlim_cur = rlimit.rlim_max;
187 (void)setrlimit(RLIMIT_DATA, &rlimit);
188 }
| 146 case 'r':
147 inoopt++;
148 break;
149
150 case 'S':
151 surrender = 1;
152 break;
153
154 case 'y':
155 yflag++;
156 nflag = 0;
157 break;
158
159 case 'Z':
160 Zflag++;
161 break;
162
163 default:
164 usage();
165 }
166 }
167 argc -= optind;
168 argv += optind;
169
170 if (!argc)
171 usage();
172
173 if (signal(SIGINT, SIG_IGN) != SIG_IGN)
174 (void)signal(SIGINT, catch);
175 if (ckclean)
176 (void)signal(SIGQUIT, catchquit);
177 signal(SIGINFO, infohandler);
178 if (bkgrdflag) {
179 signal(SIGALRM, alarmhandler);
180 itimerval.it_interval.tv_sec = 5;
181 itimerval.it_interval.tv_usec = 0;
182 itimerval.it_value.tv_sec = 5;
183 itimerval.it_value.tv_usec = 0;
184 setitimer(ITIMER_REAL, &itimerval, NULL);
185 }
186 /*
187 * Push up our allowed memory limit so we can cope
188 * with huge file systems.
189 */
190 if (getrlimit(RLIMIT_DATA, &rlimit) == 0) {
191 rlimit.rlim_cur = rlimit.rlim_max;
192 (void)setrlimit(RLIMIT_DATA, &rlimit);
193 }
|
189 while (argc-- > 0)
190 (void)checkfilesys(*argv++);
| 194 while (argc > 0) {
195 if (checkfilesys(*argv) == ERESTART)
196 continue;
197 argc--;
198 argv++;
199 }
|
191
192 if (returntosingle)
193 ret = 2;
194 exit(ret);
195}
196
197static int
198argtoi(int flag, const char *req, const char *str, int base)
199{
200 char *cp;
201 int ret;
202
203 ret = (int)strtol(str, &cp, base);
204 if (cp == str || *cp)
205 errx(EEXIT, "-%c flag requires a %s", flag, req);
206 return (ret);
207}
208
209/*
210 * Check the specified file system.
211 */
212/* ARGSUSED */
213static int
214checkfilesys(char *filesys)
215{
216 ufs2_daddr_t n_ffree, n_bfree;
217 struct dups *dp;
218 struct statfs *mntp;
219 struct stat snapdir;
220 struct group *grp;
221 struct iovec *iov;
222 char errmsg[255];
223 int iovlen;
224 int cylno;
225 intmax_t blks, files;
226 size_t size;
227
228 iov = NULL;
229 iovlen = 0;
230 errmsg[0] = '\0';
| 200
201 if (returntosingle)
202 ret = 2;
203 exit(ret);
204}
205
206static int
207argtoi(int flag, const char *req, const char *str, int base)
208{
209 char *cp;
210 int ret;
211
212 ret = (int)strtol(str, &cp, base);
213 if (cp == str || *cp)
214 errx(EEXIT, "-%c flag requires a %s", flag, req);
215 return (ret);
216}
217
218/*
219 * Check the specified file system.
220 */
221/* ARGSUSED */
222static int
223checkfilesys(char *filesys)
224{
225 ufs2_daddr_t n_ffree, n_bfree;
226 struct dups *dp;
227 struct statfs *mntp;
228 struct stat snapdir;
229 struct group *grp;
230 struct iovec *iov;
231 char errmsg[255];
232 int iovlen;
233 int cylno;
234 intmax_t blks, files;
235 size_t size;
236
237 iov = NULL;
238 iovlen = 0;
239 errmsg[0] = '\0';
|
| 240 fsutilinit();
241 fsckinit();
|
231
232 cdevname = filesys;
233 if (debug && ckclean)
234 pwarn("starting\n");
235 /*
236 * Make best effort to get the disk name. Check first to see
237 * if it is listed among the mounted file systems. Failing that
238 * check to see if it is listed in /etc/fstab.
239 */
240 mntp = getmntpt(filesys);
241 if (mntp != NULL)
242 filesys = mntp->f_mntfromname;
243 else
244 filesys = blockcheck(filesys);
245 /*
246 * If -F flag specified, check to see whether a background check
247 * is possible and needed. If possible and needed, exit with
248 * status zero. Otherwise exit with status non-zero. A non-zero
249 * exit status will cause a foreground check to be run.
250 */
251 sblock_init();
252 if (bkgrdcheck) {
253 if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0)
254 exit(3); /* Cannot read superblock */
255 close(fsreadfd);
256 /* Earlier background failed or journaled */
257 if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ))
258 exit(4);
259 if ((sblock.fs_flags & FS_DOSOFTDEP) == 0)
260 exit(5); /* Not running soft updates */
261 size = MIBSIZE;
262 if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0)
263 exit(6); /* Lacks kernel support */
264 if ((mntp == NULL && sblock.fs_clean == 1) ||
265 (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0))
266 exit(7); /* Filesystem clean, report it now */
267 exit(0);
268 }
269 if (ckclean && skipclean) {
270 /*
271 * If file system is gjournaled, check it here.
272 */
273 if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0)
274 exit(3); /* Cannot read superblock */
275 close(fsreadfd);
276 if ((sblock.fs_flags & FS_GJOURNAL) != 0) {
277 //printf("GJournaled file system detected on %s.\n",
278 // filesys);
279 if (sblock.fs_clean == 1) {
280 pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n");
281 exit(0);
282 }
283 if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) {
284 gjournal_check(filesys);
285 if (chkdoreload(mntp) == 0)
286 exit(0);
287 exit(4);
288 } else {
289 pfatal(
290 "UNEXPECTED INCONSISTENCY, CANNOT RUN FAST FSCK\n");
291 }
292 }
293 }
294 /*
295 * If we are to do a background check:
296 * Get the mount point information of the file system
297 * create snapshot file
298 * return created snapshot file
299 * if not found, clear bkgrdflag and proceed with normal fsck
300 */
301 if (bkgrdflag) {
302 if (mntp == NULL) {
303 bkgrdflag = 0;
304 pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n");
305 } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) {
306 bkgrdflag = 0;
307 pfatal(
308 "NOT USING SOFT UPDATES, CANNOT RUN IN BACKGROUND\n");
309 } else if ((mntp->f_flags & MNT_RDONLY) != 0) {
310 bkgrdflag = 0;
311 pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n");
312 } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) {
313 if (readsb(0) != 0) {
314 if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) {
315 bkgrdflag = 0;
316 pfatal(
317 "UNEXPECTED INCONSISTENCY, CANNOT RUN IN BACKGROUND\n");
318 }
319 if ((sblock.fs_flags & FS_UNCLEAN) == 0 &&
320 skipclean && ckclean) {
321 /*
322 * file system is clean;
323 * skip snapshot and report it clean
324 */
325 pwarn(
326 "FILE SYSTEM CLEAN; SKIPPING CHECKS\n");
327 goto clean;
328 }
329 }
330 close(fsreadfd);
331 }
332 if (bkgrdflag) {
333 snprintf(snapname, sizeof snapname, "%s/.snap",
334 mntp->f_mntonname);
335 if (stat(snapname, &snapdir) < 0) {
336 if (errno != ENOENT) {
337 bkgrdflag = 0;
338 pfatal(
339 "CANNOT FIND SNAPSHOT DIRECTORY %s: %s, CANNOT RUN IN BACKGROUND\n",
340 snapname, strerror(errno));
341 } else if ((grp = getgrnam("operator")) == 0 ||
342 mkdir(snapname, 0770) < 0 ||
343 chown(snapname, -1, grp->gr_gid) < 0 ||
344 chmod(snapname, 0770) < 0) {
345 bkgrdflag = 0;
346 pfatal(
347 "CANNOT CREATE SNAPSHOT DIRECTORY %s: %s, CANNOT RUN IN BACKGROUND\n",
348 snapname, strerror(errno));
349 }
350 } else if (!S_ISDIR(snapdir.st_mode)) {
351 bkgrdflag = 0;
352 pfatal(
353 "%s IS NOT A DIRECTORY, CANNOT RUN IN BACKGROUND\n",
354 snapname);
355 }
356 }
357 if (bkgrdflag) {
358 snprintf(snapname, sizeof snapname,
359 "%s/.snap/fsck_snapshot", mntp->f_mntonname);
360 build_iovec(&iov, &iovlen, "fstype", "ffs", 4);
361 build_iovec(&iov, &iovlen, "from", snapname,
362 (size_t)-1);
363 build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname,
364 (size_t)-1);
365 build_iovec(&iov, &iovlen, "errmsg", errmsg,
366 sizeof(errmsg));
367 build_iovec(&iov, &iovlen, "update", NULL, 0);
368 build_iovec(&iov, &iovlen, "snapshot", NULL, 0);
369
370 while (nmount(iov, iovlen, mntp->f_flags) < 0) {
371 if (errno == EEXIST && unlink(snapname) == 0)
372 continue;
373 bkgrdflag = 0;
374 pfatal("CANNOT CREATE SNAPSHOT %s: %s %s\n",
375 snapname, strerror(errno), errmsg);
376 break;
377 }
378 if (bkgrdflag != 0)
379 filesys = snapname;
380 }
381 }
382
383 switch (setup(filesys)) {
384 case 0:
385 if (preen)
386 pfatal("CAN'T CHECK FILE SYSTEM.");
387 return (0);
388 case -1:
389 clean:
390 pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree +
391 sblock.fs_frag * sblock.fs_cstotal.cs_nbfree));
392 printf("(%jd frags, %jd blocks, %.1f%% fragmentation)\n",
393 (intmax_t)sblock.fs_cstotal.cs_nffree,
394 (intmax_t)sblock.fs_cstotal.cs_nbfree,
395 sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize);
396 return (0);
397 }
398 /*
399 * Determine if we can and should do journal recovery.
400 */
401 if ((sblock.fs_flags & FS_SUJ) == FS_SUJ) {
402 if ((sblock.fs_flags & FS_NEEDSFSCK) != FS_NEEDSFSCK && skipclean) {
403 if (preen || reply("USE JOURNAL")) {
404 if (suj_check(filesys) == 0) {
405 printf("\n***** FILE SYSTEM MARKED CLEAN *****\n");
406 if (chkdoreload(mntp) == 0)
407 exit(0);
408 exit(4);
409 }
410 }
411 printf("** Skipping journal, falling through to full fsck\n\n");
412 }
413 /*
414 * Write the superblock so we don't try to recover the
415 * journal on another pass.
416 */
417 sblock.fs_mtime = time(NULL);
418 sbdirty();
419 }
420
421 /*
422 * Cleared if any questions answered no. Used to decide if
423 * the superblock should be marked clean.
424 */
425 resolved = 1;
426 /*
427 * 1: scan inodes tallying blocks used
428 */
429 if (preen == 0) {
430 printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
431 if (mntp != NULL && mntp->f_flags & MNT_ROOTFS)
432 printf("** Root file system\n");
433 printf("** Phase 1 - Check Blocks and Sizes\n");
434 }
435 clock_gettime(CLOCK_REALTIME_PRECISE, &startprog);
436 pass1();
437 IOstats("Pass1");
438
439 /*
440 * 1b: locate first references to duplicates, if any
441 */
442 if (duplist) {
443 if (preen || usedsoftdep)
444 pfatal("INTERNAL ERROR: dups with %s%s%s",
445 preen ? "-p" : "",
446 (preen && usedsoftdep) ? " and " : "",
447 usedsoftdep ? "softupdates" : "");
448 printf("** Phase 1b - Rescan For More DUPS\n");
449 pass1b();
450 IOstats("Pass1b");
451 }
452
453 /*
454 * 2: traverse directories from root to mark all connected directories
455 */
456 if (preen == 0)
457 printf("** Phase 2 - Check Pathnames\n");
458 pass2();
459 IOstats("Pass2");
460
461 /*
462 * 3: scan inodes looking for disconnected directories
463 */
464 if (preen == 0)
465 printf("** Phase 3 - Check Connectivity\n");
466 pass3();
467 IOstats("Pass3");
468
469 /*
470 * 4: scan inodes looking for disconnected files; check reference counts
471 */
472 if (preen == 0)
473 printf("** Phase 4 - Check Reference Counts\n");
474 pass4();
475 IOstats("Pass4");
476
477 /*
478 * 5: check and repair resource counts in cylinder groups
479 */
480 if (preen == 0)
481 printf("** Phase 5 - Check Cyl groups\n");
482 pass5();
483 IOstats("Pass5");
484
485 /*
486 * print out summary statistics
487 */
488 n_ffree = sblock.fs_cstotal.cs_nffree;
489 n_bfree = sblock.fs_cstotal.cs_nbfree;
490 files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files;
491 blks = n_blks +
492 sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0));
493 blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);
494 blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
495 blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks;
496 if (bkgrdflag && (files > 0 || blks > 0)) {
497 countdirs = sblock.fs_cstotal.cs_ndir - countdirs;
498 pwarn("Reclaimed: %ld directories, %jd files, %jd fragments\n",
499 countdirs, files - countdirs, blks);
500 }
501 pwarn("%ld files, %jd used, %ju free ",
502 (long)n_files, (intmax_t)n_blks,
503 (uintmax_t)n_ffree + sblock.fs_frag * n_bfree);
504 printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n",
505 (uintmax_t)n_ffree, (uintmax_t)n_bfree,
506 n_ffree * 100.0 / sblock.fs_dsize);
507 if (debug) {
508 if (files < 0)
509 printf("%jd inodes missing\n", -files);
510 if (blks < 0)
511 printf("%jd blocks missing\n", -blks);
512 if (duplist != NULL) {
513 printf("The following duplicate blocks remain:");
514 for (dp = duplist; dp; dp = dp->next)
515 printf(" %jd,", (intmax_t)dp->dup);
516 printf("\n");
517 }
518 }
519 duplist = (struct dups *)0;
520 muldup = (struct dups *)0;
521 inocleanup();
522 if (fsmodified) {
523 sblock.fs_time = time(NULL);
524 sbdirty();
525 }
526 if (cvtlevel && sblk.b_dirty) {
527 /*
528 * Write out the duplicate super blocks
529 */
530 for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
531 blwrite(fswritefd, (char *)&sblock,
532 fsbtodb(&sblock, cgsblock(&sblock, cylno)),
533 SBLOCKSIZE);
534 }
535 if (rerun)
536 resolved = 0;
537 finalIOstats();
538
539 /*
540 * Check to see if the file system is mounted read-write.
541 */
542 if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0)
543 resolved = 0;
544 ckfini(resolved);
545
546 for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
547 if (inostathead[cylno].il_stat != NULL)
548 free((char *)inostathead[cylno].il_stat);
549 free((char *)inostathead);
550 inostathead = NULL;
551 if (fsmodified && !preen)
552 printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
| 242
243 cdevname = filesys;
244 if (debug && ckclean)
245 pwarn("starting\n");
246 /*
247 * Make best effort to get the disk name. Check first to see
248 * if it is listed among the mounted file systems. Failing that
249 * check to see if it is listed in /etc/fstab.
250 */
251 mntp = getmntpt(filesys);
252 if (mntp != NULL)
253 filesys = mntp->f_mntfromname;
254 else
255 filesys = blockcheck(filesys);
256 /*
257 * If -F flag specified, check to see whether a background check
258 * is possible and needed. If possible and needed, exit with
259 * status zero. Otherwise exit with status non-zero. A non-zero
260 * exit status will cause a foreground check to be run.
261 */
262 sblock_init();
263 if (bkgrdcheck) {
264 if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0)
265 exit(3); /* Cannot read superblock */
266 close(fsreadfd);
267 /* Earlier background failed or journaled */
268 if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ))
269 exit(4);
270 if ((sblock.fs_flags & FS_DOSOFTDEP) == 0)
271 exit(5); /* Not running soft updates */
272 size = MIBSIZE;
273 if (sysctlnametomib("vfs.ffs.adjrefcnt", adjrefcnt, &size) < 0)
274 exit(6); /* Lacks kernel support */
275 if ((mntp == NULL && sblock.fs_clean == 1) ||
276 (mntp != NULL && (sblock.fs_flags & FS_UNCLEAN) == 0))
277 exit(7); /* Filesystem clean, report it now */
278 exit(0);
279 }
280 if (ckclean && skipclean) {
281 /*
282 * If file system is gjournaled, check it here.
283 */
284 if ((fsreadfd = open(filesys, O_RDONLY)) < 0 || readsb(0) == 0)
285 exit(3); /* Cannot read superblock */
286 close(fsreadfd);
287 if ((sblock.fs_flags & FS_GJOURNAL) != 0) {
288 //printf("GJournaled file system detected on %s.\n",
289 // filesys);
290 if (sblock.fs_clean == 1) {
291 pwarn("FILE SYSTEM CLEAN; SKIPPING CHECKS\n");
292 exit(0);
293 }
294 if ((sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) == 0) {
295 gjournal_check(filesys);
296 if (chkdoreload(mntp) == 0)
297 exit(0);
298 exit(4);
299 } else {
300 pfatal(
301 "UNEXPECTED INCONSISTENCY, CANNOT RUN FAST FSCK\n");
302 }
303 }
304 }
305 /*
306 * If we are to do a background check:
307 * Get the mount point information of the file system
308 * create snapshot file
309 * return created snapshot file
310 * if not found, clear bkgrdflag and proceed with normal fsck
311 */
312 if (bkgrdflag) {
313 if (mntp == NULL) {
314 bkgrdflag = 0;
315 pfatal("NOT MOUNTED, CANNOT RUN IN BACKGROUND\n");
316 } else if ((mntp->f_flags & MNT_SOFTDEP) == 0) {
317 bkgrdflag = 0;
318 pfatal(
319 "NOT USING SOFT UPDATES, CANNOT RUN IN BACKGROUND\n");
320 } else if ((mntp->f_flags & MNT_RDONLY) != 0) {
321 bkgrdflag = 0;
322 pfatal("MOUNTED READ-ONLY, CANNOT RUN IN BACKGROUND\n");
323 } else if ((fsreadfd = open(filesys, O_RDONLY)) >= 0) {
324 if (readsb(0) != 0) {
325 if (sblock.fs_flags & (FS_NEEDSFSCK | FS_SUJ)) {
326 bkgrdflag = 0;
327 pfatal(
328 "UNEXPECTED INCONSISTENCY, CANNOT RUN IN BACKGROUND\n");
329 }
330 if ((sblock.fs_flags & FS_UNCLEAN) == 0 &&
331 skipclean && ckclean) {
332 /*
333 * file system is clean;
334 * skip snapshot and report it clean
335 */
336 pwarn(
337 "FILE SYSTEM CLEAN; SKIPPING CHECKS\n");
338 goto clean;
339 }
340 }
341 close(fsreadfd);
342 }
343 if (bkgrdflag) {
344 snprintf(snapname, sizeof snapname, "%s/.snap",
345 mntp->f_mntonname);
346 if (stat(snapname, &snapdir) < 0) {
347 if (errno != ENOENT) {
348 bkgrdflag = 0;
349 pfatal(
350 "CANNOT FIND SNAPSHOT DIRECTORY %s: %s, CANNOT RUN IN BACKGROUND\n",
351 snapname, strerror(errno));
352 } else if ((grp = getgrnam("operator")) == 0 ||
353 mkdir(snapname, 0770) < 0 ||
354 chown(snapname, -1, grp->gr_gid) < 0 ||
355 chmod(snapname, 0770) < 0) {
356 bkgrdflag = 0;
357 pfatal(
358 "CANNOT CREATE SNAPSHOT DIRECTORY %s: %s, CANNOT RUN IN BACKGROUND\n",
359 snapname, strerror(errno));
360 }
361 } else if (!S_ISDIR(snapdir.st_mode)) {
362 bkgrdflag = 0;
363 pfatal(
364 "%s IS NOT A DIRECTORY, CANNOT RUN IN BACKGROUND\n",
365 snapname);
366 }
367 }
368 if (bkgrdflag) {
369 snprintf(snapname, sizeof snapname,
370 "%s/.snap/fsck_snapshot", mntp->f_mntonname);
371 build_iovec(&iov, &iovlen, "fstype", "ffs", 4);
372 build_iovec(&iov, &iovlen, "from", snapname,
373 (size_t)-1);
374 build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname,
375 (size_t)-1);
376 build_iovec(&iov, &iovlen, "errmsg", errmsg,
377 sizeof(errmsg));
378 build_iovec(&iov, &iovlen, "update", NULL, 0);
379 build_iovec(&iov, &iovlen, "snapshot", NULL, 0);
380
381 while (nmount(iov, iovlen, mntp->f_flags) < 0) {
382 if (errno == EEXIST && unlink(snapname) == 0)
383 continue;
384 bkgrdflag = 0;
385 pfatal("CANNOT CREATE SNAPSHOT %s: %s %s\n",
386 snapname, strerror(errno), errmsg);
387 break;
388 }
389 if (bkgrdflag != 0)
390 filesys = snapname;
391 }
392 }
393
394 switch (setup(filesys)) {
395 case 0:
396 if (preen)
397 pfatal("CAN'T CHECK FILE SYSTEM.");
398 return (0);
399 case -1:
400 clean:
401 pwarn("clean, %ld free ", (long)(sblock.fs_cstotal.cs_nffree +
402 sblock.fs_frag * sblock.fs_cstotal.cs_nbfree));
403 printf("(%jd frags, %jd blocks, %.1f%% fragmentation)\n",
404 (intmax_t)sblock.fs_cstotal.cs_nffree,
405 (intmax_t)sblock.fs_cstotal.cs_nbfree,
406 sblock.fs_cstotal.cs_nffree * 100.0 / sblock.fs_dsize);
407 return (0);
408 }
409 /*
410 * Determine if we can and should do journal recovery.
411 */
412 if ((sblock.fs_flags & FS_SUJ) == FS_SUJ) {
413 if ((sblock.fs_flags & FS_NEEDSFSCK) != FS_NEEDSFSCK && skipclean) {
414 if (preen || reply("USE JOURNAL")) {
415 if (suj_check(filesys) == 0) {
416 printf("\n***** FILE SYSTEM MARKED CLEAN *****\n");
417 if (chkdoreload(mntp) == 0)
418 exit(0);
419 exit(4);
420 }
421 }
422 printf("** Skipping journal, falling through to full fsck\n\n");
423 }
424 /*
425 * Write the superblock so we don't try to recover the
426 * journal on another pass.
427 */
428 sblock.fs_mtime = time(NULL);
429 sbdirty();
430 }
431
432 /*
433 * Cleared if any questions answered no. Used to decide if
434 * the superblock should be marked clean.
435 */
436 resolved = 1;
437 /*
438 * 1: scan inodes tallying blocks used
439 */
440 if (preen == 0) {
441 printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
442 if (mntp != NULL && mntp->f_flags & MNT_ROOTFS)
443 printf("** Root file system\n");
444 printf("** Phase 1 - Check Blocks and Sizes\n");
445 }
446 clock_gettime(CLOCK_REALTIME_PRECISE, &startprog);
447 pass1();
448 IOstats("Pass1");
449
450 /*
451 * 1b: locate first references to duplicates, if any
452 */
453 if (duplist) {
454 if (preen || usedsoftdep)
455 pfatal("INTERNAL ERROR: dups with %s%s%s",
456 preen ? "-p" : "",
457 (preen && usedsoftdep) ? " and " : "",
458 usedsoftdep ? "softupdates" : "");
459 printf("** Phase 1b - Rescan For More DUPS\n");
460 pass1b();
461 IOstats("Pass1b");
462 }
463
464 /*
465 * 2: traverse directories from root to mark all connected directories
466 */
467 if (preen == 0)
468 printf("** Phase 2 - Check Pathnames\n");
469 pass2();
470 IOstats("Pass2");
471
472 /*
473 * 3: scan inodes looking for disconnected directories
474 */
475 if (preen == 0)
476 printf("** Phase 3 - Check Connectivity\n");
477 pass3();
478 IOstats("Pass3");
479
480 /*
481 * 4: scan inodes looking for disconnected files; check reference counts
482 */
483 if (preen == 0)
484 printf("** Phase 4 - Check Reference Counts\n");
485 pass4();
486 IOstats("Pass4");
487
488 /*
489 * 5: check and repair resource counts in cylinder groups
490 */
491 if (preen == 0)
492 printf("** Phase 5 - Check Cyl groups\n");
493 pass5();
494 IOstats("Pass5");
495
496 /*
497 * print out summary statistics
498 */
499 n_ffree = sblock.fs_cstotal.cs_nffree;
500 n_bfree = sblock.fs_cstotal.cs_nbfree;
501 files = maxino - ROOTINO - sblock.fs_cstotal.cs_nifree - n_files;
502 blks = n_blks +
503 sblock.fs_ncg * (cgdmin(&sblock, 0) - cgsblock(&sblock, 0));
504 blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);
505 blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
506 blks = maxfsblock - (n_ffree + sblock.fs_frag * n_bfree) - blks;
507 if (bkgrdflag && (files > 0 || blks > 0)) {
508 countdirs = sblock.fs_cstotal.cs_ndir - countdirs;
509 pwarn("Reclaimed: %ld directories, %jd files, %jd fragments\n",
510 countdirs, files - countdirs, blks);
511 }
512 pwarn("%ld files, %jd used, %ju free ",
513 (long)n_files, (intmax_t)n_blks,
514 (uintmax_t)n_ffree + sblock.fs_frag * n_bfree);
515 printf("(%ju frags, %ju blocks, %.1f%% fragmentation)\n",
516 (uintmax_t)n_ffree, (uintmax_t)n_bfree,
517 n_ffree * 100.0 / sblock.fs_dsize);
518 if (debug) {
519 if (files < 0)
520 printf("%jd inodes missing\n", -files);
521 if (blks < 0)
522 printf("%jd blocks missing\n", -blks);
523 if (duplist != NULL) {
524 printf("The following duplicate blocks remain:");
525 for (dp = duplist; dp; dp = dp->next)
526 printf(" %jd,", (intmax_t)dp->dup);
527 printf("\n");
528 }
529 }
530 duplist = (struct dups *)0;
531 muldup = (struct dups *)0;
532 inocleanup();
533 if (fsmodified) {
534 sblock.fs_time = time(NULL);
535 sbdirty();
536 }
537 if (cvtlevel && sblk.b_dirty) {
538 /*
539 * Write out the duplicate super blocks
540 */
541 for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
542 blwrite(fswritefd, (char *)&sblock,
543 fsbtodb(&sblock, cgsblock(&sblock, cylno)),
544 SBLOCKSIZE);
545 }
546 if (rerun)
547 resolved = 0;
548 finalIOstats();
549
550 /*
551 * Check to see if the file system is mounted read-write.
552 */
553 if (bkgrdflag == 0 && mntp != NULL && (mntp->f_flags & MNT_RDONLY) == 0)
554 resolved = 0;
555 ckfini(resolved);
556
557 for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
558 if (inostathead[cylno].il_stat != NULL)
559 free((char *)inostathead[cylno].il_stat);
560 free((char *)inostathead);
561 inostathead = NULL;
562 if (fsmodified && !preen)
563 printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
|
553 if (rerun)
| 564 if (rerun) {
565 if (wantrestart && (restarts++ < 10) &&
566 (preen || reply("RESTART")))
567 return (ERESTART);
|
554 printf("\n***** PLEASE RERUN FSCK *****\n");
| 568 printf("\n***** PLEASE RERUN FSCK *****\n");
|
| 569 }
|
555 if (chkdoreload(mntp) != 0) {
556 if (!fsmodified)
557 return (0);
558 if (!preen)
559 printf("\n***** REBOOT NOW *****\n");
560 sync();
561 return (4);
562 }
563 return (0);
564}
565
566static int
567chkdoreload(struct statfs *mntp)
568{
569 struct iovec *iov;
570 int iovlen;
571 char errmsg[255];
572
573 if (mntp == NULL)
574 return (0);
575
576 iov = NULL;
577 iovlen = 0;
578 errmsg[0] = '\0';
579 /*
580 * We modified a mounted file system. Do a mount update on
581 * it unless it is read-write, so we can continue using it
582 * as safely as possible.
583 */
584 if (mntp->f_flags & MNT_RDONLY) {
585 build_iovec(&iov, &iovlen, "fstype", "ffs", 4);
586 build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname,
587 (size_t)-1);
588 build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname,
589 (size_t)-1);
590 build_iovec(&iov, &iovlen, "errmsg", errmsg,
591 sizeof(errmsg));
592 build_iovec(&iov, &iovlen, "update", NULL, 0);
593 build_iovec(&iov, &iovlen, "reload", NULL, 0);
594 /*
595 * XX: We need the following line until we clean up
596 * nmount parsing of root mounts and NFS root mounts.
597 */
598 build_iovec(&iov, &iovlen, "ro", NULL, 0);
599 if (nmount(iov, iovlen, mntp->f_flags) == 0) {
600 return (0);
601 }
602 pwarn("mount reload of '%s' failed: %s %s\n\n",
603 mntp->f_mntonname, strerror(errno), errmsg);
604 return (1);
605 }
606 return (0);
607}
608
609/*
610 * Get the mount point information for name.
611 */
612static struct statfs *
613getmntpt(const char *name)
614{
615 struct stat devstat, mntdevstat;
616 char device[sizeof(_PATH_DEV) - 1 + MNAMELEN];
617 char *ddevname;
618 struct statfs *mntbuf, *statfsp;
619 int i, mntsize, isdev;
620
621 if (stat(name, &devstat) != 0)
622 return (NULL);
623 if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode))
624 isdev = 1;
625 else
626 isdev = 0;
627 mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
628 for (i = 0; i < mntsize; i++) {
629 statfsp = &mntbuf[i];
630 ddevname = statfsp->f_mntfromname;
631 if (*ddevname != '/') {
632 strcpy(device, _PATH_DEV);
633 strcat(device, ddevname);
634 strcpy(statfsp->f_mntfromname, device);
635 }
636 if (isdev == 0) {
637 if (strcmp(name, statfsp->f_mntonname))
638 continue;
639 return (statfsp);
640 }
641 if (stat(ddevname, &mntdevstat) == 0 &&
642 mntdevstat.st_rdev == devstat.st_rdev)
643 return (statfsp);
644 }
645 statfsp = NULL;
646 return (statfsp);
647}
648
649static void
650usage(void)
651{
652 (void) fprintf(stderr,
653"usage: %s [-BEFfnpry] [-b block] [-c level] [-m mode] filesystem ...\n",
654 getprogname());
655 exit(1);
656}
| 570 if (chkdoreload(mntp) != 0) {
571 if (!fsmodified)
572 return (0);
573 if (!preen)
574 printf("\n***** REBOOT NOW *****\n");
575 sync();
576 return (4);
577 }
578 return (0);
579}
580
581static int
582chkdoreload(struct statfs *mntp)
583{
584 struct iovec *iov;
585 int iovlen;
586 char errmsg[255];
587
588 if (mntp == NULL)
589 return (0);
590
591 iov = NULL;
592 iovlen = 0;
593 errmsg[0] = '\0';
594 /*
595 * We modified a mounted file system. Do a mount update on
596 * it unless it is read-write, so we can continue using it
597 * as safely as possible.
598 */
599 if (mntp->f_flags & MNT_RDONLY) {
600 build_iovec(&iov, &iovlen, "fstype", "ffs", 4);
601 build_iovec(&iov, &iovlen, "from", mntp->f_mntfromname,
602 (size_t)-1);
603 build_iovec(&iov, &iovlen, "fspath", mntp->f_mntonname,
604 (size_t)-1);
605 build_iovec(&iov, &iovlen, "errmsg", errmsg,
606 sizeof(errmsg));
607 build_iovec(&iov, &iovlen, "update", NULL, 0);
608 build_iovec(&iov, &iovlen, "reload", NULL, 0);
609 /*
610 * XX: We need the following line until we clean up
611 * nmount parsing of root mounts and NFS root mounts.
612 */
613 build_iovec(&iov, &iovlen, "ro", NULL, 0);
614 if (nmount(iov, iovlen, mntp->f_flags) == 0) {
615 return (0);
616 }
617 pwarn("mount reload of '%s' failed: %s %s\n\n",
618 mntp->f_mntonname, strerror(errno), errmsg);
619 return (1);
620 }
621 return (0);
622}
623
624/*
625 * Get the mount point information for name.
626 */
627static struct statfs *
628getmntpt(const char *name)
629{
630 struct stat devstat, mntdevstat;
631 char device[sizeof(_PATH_DEV) - 1 + MNAMELEN];
632 char *ddevname;
633 struct statfs *mntbuf, *statfsp;
634 int i, mntsize, isdev;
635
636 if (stat(name, &devstat) != 0)
637 return (NULL);
638 if (S_ISCHR(devstat.st_mode) || S_ISBLK(devstat.st_mode))
639 isdev = 1;
640 else
641 isdev = 0;
642 mntsize = getmntinfo(&mntbuf, MNT_NOWAIT);
643 for (i = 0; i < mntsize; i++) {
644 statfsp = &mntbuf[i];
645 ddevname = statfsp->f_mntfromname;
646 if (*ddevname != '/') {
647 strcpy(device, _PATH_DEV);
648 strcat(device, ddevname);
649 strcpy(statfsp->f_mntfromname, device);
650 }
651 if (isdev == 0) {
652 if (strcmp(name, statfsp->f_mntonname))
653 continue;
654 return (statfsp);
655 }
656 if (stat(ddevname, &mntdevstat) == 0 &&
657 mntdevstat.st_rdev == devstat.st_rdev)
658 return (statfsp);
659 }
660 statfsp = NULL;
661 return (statfsp);
662}
663
664static void
665usage(void)
666{
667 (void) fprintf(stderr,
668"usage: %s [-BEFfnpry] [-b block] [-c level] [-m mode] filesystem ...\n",
669 getprogname());
670 exit(1);
671}
|
| 672
673void
674infohandler(int sig __unused)
675{
676 got_siginfo = 1;
677}
678
679void
680alarmhandler(int sig __unused)
681{
682 got_sigalarm = 1;
683}
|
| |