1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1983, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 * 3. Neither the name of the University nor the names of its contributors
16 * may be used to endorse or promote products derived from this software
17 * without specific prior written permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29 * SUCH DAMAGE.
30 */
31
32 /*
33 * tunefs: change layout parameters to an existing file system.
34 */
35 #include <sys/param.h>
36 #include <sys/mount.h>
37 #include <sys/disklabel.h>
38 #include <sys/stat.h>
39
40 #include <ufs/ufs/extattr.h>
41 #include <ufs/ufs/quota.h>
42 #include <ufs/ufs/ufsmount.h>
43 #include <ufs/ufs/dinode.h>
44 #include <ufs/ffs/fs.h>
45 #include <ufs/ufs/dir.h>
46
47 #include <ctype.h>
48 #include <err.h>
49 #include <fcntl.h>
50 #include <fstab.h>
51 #include <libufs.h>
52 #include <mntopts.h>
53 #include <paths.h>
54 #include <stdio.h>
55 #include <stdlib.h>
56 #include <stdint.h>
57 #include <string.h>
58 #include <time.h>
59 #include <unistd.h>
60
61 /* the optimization warning string template */
62 #define OPTWARN "should optimize for %s with minfree %s %d%%"
63
64 static int blocks;
65 static char clrbuf[MAXBSIZE];
66 static struct uufsd disk;
67 #define sblock disk.d_fs
68
69 static void usage(void) __dead2;
70 static void printfs(void);
71 static int journal_alloc(int64_t size);
72 static void journal_clear(void);
73 static void sbdirty(void);
74
75 int
main(int argc,char * argv[])76 main(int argc, char *argv[])
77 {
78 const char *avalue, *jvalue, *Jvalue, *Lvalue, *lvalue, *Nvalue, *nvalue;
79 const char *tvalue;
80 const char *special;
81 const char *name;
82 char *diskname;
83 int Aflag, aflag, eflag, evalue, fflag, fvalue, jflag, Jflag, kflag;
84 int kvalue, Lflag, lflag, mflag, mvalue, Nflag, nflag, oflag, ovalue;
85 int pflag, sflag, svalue, Svalue, tflag;
86 int ch, found_arg, i;
87 const char *chg[2];
88
89 if (argc < 3)
90 usage();
91 Aflag = aflag = eflag = fflag = jflag = Jflag = kflag = Lflag = 0;
92 lflag = mflag = Nflag = nflag = oflag = pflag = sflag = tflag = 0;
93 avalue = jvalue = Jvalue = Lvalue = lvalue = Nvalue = nvalue = NULL;
94 evalue = fvalue = mvalue = ovalue = svalue = Svalue = 0;
95 found_arg = 0; /* At least one arg is required. */
96 while ((ch = getopt(argc, argv, "Aa:e:f:j:J:k:L:l:m:N:n:o:ps:S:t:"))
97 != -1)
98 switch (ch) {
99
100 case 'A':
101 found_arg++;
102 Aflag++;
103 break;
104
105 case 'a':
106 found_arg++;
107 name = "POSIX.1e ACLs";
108 avalue = optarg;
109 if (strcmp(avalue, "enable") &&
110 strcmp(avalue, "disable")) {
111 errx(10, "bad %s (options are %s)",
112 name, "`enable' or `disable'");
113 }
114 aflag = 1;
115 break;
116
117 case 'e':
118 found_arg++;
119 name = "maximum blocks per file in a cylinder group";
120 evalue = atoi(optarg);
121 if (evalue < 1)
122 errx(10, "%s must be >= 1 (was %s)",
123 name, optarg);
124 eflag = 1;
125 break;
126
127 case 'f':
128 found_arg++;
129 name = "average file size";
130 fvalue = atoi(optarg);
131 if (fvalue < 1)
132 errx(10, "%s must be >= 1 (was %s)",
133 name, optarg);
134 fflag = 1;
135 break;
136
137 case 'j':
138 found_arg++;
139 name = "softdep journaled file system";
140 jvalue = optarg;
141 if (strcmp(jvalue, "enable") &&
142 strcmp(jvalue, "disable")) {
143 errx(10, "bad %s (options are %s)",
144 name, "`enable' or `disable'");
145 }
146 jflag = 1;
147 break;
148
149 case 'J':
150 found_arg++;
151 name = "gjournaled file system";
152 Jvalue = optarg;
153 if (strcmp(Jvalue, "enable") &&
154 strcmp(Jvalue, "disable")) {
155 errx(10, "bad %s (options are %s)",
156 name, "`enable' or `disable'");
157 }
158 Jflag = 1;
159 break;
160
161 case 'k':
162 found_arg++;
163 name = "space to hold for metadata blocks";
164 kvalue = atoi(optarg);
165 if (kvalue < 0)
166 errx(10, "bad %s (%s)", name, optarg);
167 kflag = 1;
168 break;
169
170 case 'L':
171 found_arg++;
172 name = "volume label";
173 Lvalue = optarg;
174 i = -1;
175 while (isalnum(Lvalue[++i]) || Lvalue[i] == '_' ||
176 Lvalue[i] == '-')
177 ;
178 if (Lvalue[i] != '\0') {
179 errx(10, "bad %s. Valid characters are "
180 "alphanumerics, dashes, and underscores.",
181 name);
182 }
183 if (strlen(Lvalue) >= MAXVOLLEN) {
184 errx(10, "bad %s. Length is longer than %d.",
185 name, MAXVOLLEN - 1);
186 }
187 Lflag = 1;
188 break;
189
190 case 'l':
191 found_arg++;
192 name = "multilabel MAC file system";
193 lvalue = optarg;
194 if (strcmp(lvalue, "enable") &&
195 strcmp(lvalue, "disable")) {
196 errx(10, "bad %s (options are %s)",
197 name, "`enable' or `disable'");
198 }
199 lflag = 1;
200 break;
201
202 case 'm':
203 found_arg++;
204 name = "minimum percentage of free space";
205 mvalue = atoi(optarg);
206 if (mvalue < 0 || mvalue > 99)
207 errx(10, "bad %s (%s)", name, optarg);
208 mflag = 1;
209 break;
210
211 case 'N':
212 found_arg++;
213 name = "NFSv4 ACLs";
214 Nvalue = optarg;
215 if (strcmp(Nvalue, "enable") &&
216 strcmp(Nvalue, "disable")) {
217 errx(10, "bad %s (options are %s)",
218 name, "`enable' or `disable'");
219 }
220 Nflag = 1;
221 break;
222
223 case 'n':
224 found_arg++;
225 name = "soft updates";
226 nvalue = optarg;
227 if (strcmp(nvalue, "enable") != 0 &&
228 strcmp(nvalue, "disable") != 0) {
229 errx(10, "bad %s (options are %s)",
230 name, "`enable' or `disable'");
231 }
232 nflag = 1;
233 break;
234
235 case 'o':
236 found_arg++;
237 name = "optimization preference";
238 if (strcmp(optarg, "space") == 0)
239 ovalue = FS_OPTSPACE;
240 else if (strcmp(optarg, "time") == 0)
241 ovalue = FS_OPTTIME;
242 else
243 errx(10,
244 "bad %s (options are `space' or `time')",
245 name);
246 oflag = 1;
247 break;
248
249 case 'p':
250 found_arg++;
251 pflag = 1;
252 break;
253
254 case 's':
255 found_arg++;
256 name = "expected number of files per directory";
257 svalue = atoi(optarg);
258 if (svalue < 1)
259 errx(10, "%s must be >= 1 (was %s)",
260 name, optarg);
261 sflag = 1;
262 break;
263
264 case 'S':
265 found_arg++;
266 name = "Softdep Journal Size";
267 Svalue = atoi(optarg);
268 if (Svalue < SUJ_MIN)
269 errx(10, "%s must be >= %d (was %s)",
270 name, SUJ_MIN, optarg);
271 break;
272
273 case 't':
274 found_arg++;
275 name = "trim";
276 tvalue = optarg;
277 if (strcmp(tvalue, "enable") != 0 &&
278 strcmp(tvalue, "disable") != 0) {
279 errx(10, "bad %s (options are %s)",
280 name, "`enable' or `disable'");
281 }
282 tflag = 1;
283 break;
284
285 default:
286 usage();
287 }
288 argc -= optind;
289 argv += optind;
290 if (found_arg == 0 || argc != 1)
291 usage();
292
293 special = argv[0];
294 if (ufs_disk_fillout(&disk, special) == -1)
295 goto err;
296 /*
297 * Check for unclean filesystem.
298 */
299 if ((sblock.fs_clean == 0 ||
300 (sblock.fs_flags & (FS_UNCLEAN | FS_NEEDSFSCK)) != 0) &&
301 (found_arg > 1 || !pflag))
302 errx(1, "%s is not clean - run fsck.\n", special);
303 if (pflag) {
304 printfs();
305 exit(0);
306 }
307 if (Lflag) {
308 name = "volume label";
309 strncpy(sblock.fs_volname, Lvalue, MAXVOLLEN);
310 }
311 if (aflag) {
312 name = "POSIX.1e ACLs";
313 if (strcmp(avalue, "enable") == 0) {
314 if (sblock.fs_flags & FS_ACLS) {
315 warnx("%s remains unchanged as enabled", name);
316 } else if (sblock.fs_flags & FS_NFS4ACLS) {
317 warnx("%s and NFSv4 ACLs are mutually "
318 "exclusive", name);
319 } else {
320 sblock.fs_flags |= FS_ACLS;
321 warnx("%s set", name);
322 }
323 } else if (strcmp(avalue, "disable") == 0) {
324 if ((~sblock.fs_flags & FS_ACLS) ==
325 FS_ACLS) {
326 warnx("%s remains unchanged as disabled",
327 name);
328 } else {
329 sblock.fs_flags &= ~FS_ACLS;
330 warnx("%s cleared", name);
331 }
332 }
333 }
334 if (eflag) {
335 name = "maximum blocks per file in a cylinder group";
336 if (sblock.fs_maxbpg == evalue)
337 warnx("%s remains unchanged as %d", name, evalue);
338 else {
339 warnx("%s changes from %d to %d",
340 name, sblock.fs_maxbpg, evalue);
341 sblock.fs_maxbpg = evalue;
342 }
343 }
344 if (fflag) {
345 name = "average file size";
346 if (sblock.fs_avgfilesize == (unsigned)fvalue) {
347 warnx("%s remains unchanged as %d", name, fvalue);
348 }
349 else {
350 warnx("%s changes from %d to %d",
351 name, sblock.fs_avgfilesize, fvalue);
352 sblock.fs_avgfilesize = fvalue;
353 }
354 }
355 if (jflag) {
356 name = "soft updates journaling";
357 if (strcmp(jvalue, "enable") == 0) {
358 if ((sblock.fs_flags & (FS_DOSOFTDEP | FS_SUJ)) ==
359 (FS_DOSOFTDEP | FS_SUJ)) {
360 warnx("%s remains unchanged as enabled", name);
361 } else if (sblock.fs_flags & FS_GJOURNAL) {
362 warnx("%s cannot be enabled while GEOM "
363 "journaling is enabled", name);
364 } else if (sblock.fs_clean == 0) {
365 warnx("%s cannot be enabled until fsck is run",
366 name);
367 } else if (journal_alloc(Svalue) != 0) {
368 warnx("%s cannot be enabled", name);
369 } else {
370 sblock.fs_flags |= FS_DOSOFTDEP | FS_SUJ;
371 warnx("%s set", name);
372 }
373 } else if (strcmp(jvalue, "disable") == 0) {
374 if ((~sblock.fs_flags & FS_SUJ) == FS_SUJ) {
375 warnx("%s remains unchanged as disabled", name);
376 } else {
377 journal_clear();
378 sblock.fs_flags &= ~FS_SUJ;
379 sblock.fs_sujfree = 0;
380 warnx("%s cleared but soft updates still set.",
381 name);
382
383 warnx("remove .sujournal to reclaim space");
384 }
385 }
386 }
387 if (Jflag) {
388 name = "gjournal";
389 if (strcmp(Jvalue, "enable") == 0) {
390 if (sblock.fs_flags & FS_GJOURNAL) {
391 warnx("%s remains unchanged as enabled", name);
392 } if (sblock.fs_flags & FS_DOSOFTDEP) {
393 warnx("%s cannot be enabled while soft "
394 "updates are enabled", name);
395 } else {
396 sblock.fs_flags |= FS_GJOURNAL;
397 warnx("%s set", name);
398 }
399 } else if (strcmp(Jvalue, "disable") == 0) {
400 if ((~sblock.fs_flags & FS_GJOURNAL) ==
401 FS_GJOURNAL) {
402 warnx("%s remains unchanged as disabled",
403 name);
404 } else {
405 sblock.fs_flags &= ~FS_GJOURNAL;
406 warnx("%s cleared", name);
407 }
408 }
409 }
410 if (kflag) {
411 name = "space to hold for metadata blocks";
412 if (sblock.fs_metaspace == kvalue) {
413 warnx("%s remains unchanged as %d", name, kvalue);
414 } else {
415 kvalue = blknum(&sblock, kvalue);
416 if (kvalue > sblock.fs_fpg / 2) {
417 kvalue = blknum(&sblock, sblock.fs_fpg / 2);
418 warnx("%s cannot exceed half the file system "
419 "space", name);
420 }
421 warnx("%s changes from %jd to %d",
422 name, sblock.fs_metaspace, kvalue);
423 sblock.fs_metaspace = kvalue;
424 }
425 }
426 if (lflag) {
427 name = "multilabel";
428 if (strcmp(lvalue, "enable") == 0) {
429 if (sblock.fs_flags & FS_MULTILABEL) {
430 warnx("%s remains unchanged as enabled", name);
431 } else {
432 sblock.fs_flags |= FS_MULTILABEL;
433 warnx("%s set", name);
434 }
435 } else if (strcmp(lvalue, "disable") == 0) {
436 if ((~sblock.fs_flags & FS_MULTILABEL) ==
437 FS_MULTILABEL) {
438 warnx("%s remains unchanged as disabled",
439 name);
440 } else {
441 sblock.fs_flags &= ~FS_MULTILABEL;
442 warnx("%s cleared", name);
443 }
444 }
445 }
446 if (mflag) {
447 name = "minimum percentage of free space";
448 if (sblock.fs_minfree == mvalue)
449 warnx("%s remains unchanged as %d%%", name, mvalue);
450 else {
451 warnx("%s changes from %d%% to %d%%",
452 name, sblock.fs_minfree, mvalue);
453 sblock.fs_minfree = mvalue;
454 if (mvalue >= MINFREE && sblock.fs_optim == FS_OPTSPACE)
455 warnx(OPTWARN, "time", ">=", MINFREE);
456 if (mvalue < MINFREE && sblock.fs_optim == FS_OPTTIME)
457 warnx(OPTWARN, "space", "<", MINFREE);
458 }
459 }
460 if (Nflag) {
461 name = "NFSv4 ACLs";
462 if (strcmp(Nvalue, "enable") == 0) {
463 if (sblock.fs_flags & FS_NFS4ACLS) {
464 warnx("%s remains unchanged as enabled", name);
465 } else if (sblock.fs_flags & FS_ACLS) {
466 warnx("%s and POSIX.1e ACLs are mutually "
467 "exclusive", name);
468 } else {
469 sblock.fs_flags |= FS_NFS4ACLS;
470 warnx("%s set", name);
471 }
472 } else if (strcmp(Nvalue, "disable") == 0) {
473 if ((~sblock.fs_flags & FS_NFS4ACLS) ==
474 FS_NFS4ACLS) {
475 warnx("%s remains unchanged as disabled",
476 name);
477 } else {
478 sblock.fs_flags &= ~FS_NFS4ACLS;
479 warnx("%s cleared", name);
480 }
481 }
482 }
483 if (nflag) {
484 name = "soft updates";
485 if (strcmp(nvalue, "enable") == 0) {
486 if (sblock.fs_flags & FS_DOSOFTDEP) {
487 warnx("%s remains unchanged as enabled", name);
488 } else if (sblock.fs_flags & FS_GJOURNAL) {
489 warnx("%s cannot be enabled while GEOM "
490 "journaling is enabled", name);
491 } else if (sblock.fs_clean == 0) {
492 warnx("%s cannot be enabled until fsck is run",
493 name);
494 } else {
495 sblock.fs_flags |= FS_DOSOFTDEP;
496 warnx("%s set", name);
497 }
498 } else if (strcmp(nvalue, "disable") == 0) {
499 if ((~sblock.fs_flags & FS_DOSOFTDEP) == FS_DOSOFTDEP)
500 warnx("%s remains unchanged as disabled", name);
501 else {
502 sblock.fs_flags &= ~FS_DOSOFTDEP;
503 warnx("%s cleared", name);
504 }
505 }
506 }
507 if (oflag) {
508 name = "optimization preference";
509 chg[FS_OPTSPACE] = "space";
510 chg[FS_OPTTIME] = "time";
511 if (sblock.fs_optim == ovalue)
512 warnx("%s remains unchanged as %s", name, chg[ovalue]);
513 else {
514 warnx("%s changes from %s to %s",
515 name, chg[sblock.fs_optim], chg[ovalue]);
516 sblock.fs_optim = ovalue;
517 if (sblock.fs_minfree >= MINFREE &&
518 ovalue == FS_OPTSPACE)
519 warnx(OPTWARN, "time", ">=", MINFREE);
520 if (sblock.fs_minfree < MINFREE && ovalue == FS_OPTTIME)
521 warnx(OPTWARN, "space", "<", MINFREE);
522 }
523 }
524 if (sflag) {
525 name = "expected number of files per directory";
526 if (sblock.fs_avgfpdir == (unsigned)svalue) {
527 warnx("%s remains unchanged as %d", name, svalue);
528 }
529 else {
530 warnx("%s changes from %d to %d",
531 name, sblock.fs_avgfpdir, svalue);
532 sblock.fs_avgfpdir = svalue;
533 }
534 }
535 if (tflag) {
536 name = "issue TRIM to the disk";
537 if (strcmp(tvalue, "enable") == 0) {
538 if (sblock.fs_flags & FS_TRIM)
539 warnx("%s remains unchanged as enabled", name);
540 else {
541 sblock.fs_flags |= FS_TRIM;
542 warnx("%s set", name);
543 }
544 } else if (strcmp(tvalue, "disable") == 0) {
545 if ((~sblock.fs_flags & FS_TRIM) == FS_TRIM)
546 warnx("%s remains unchanged as disabled", name);
547 else {
548 sblock.fs_flags &= ~FS_TRIM;
549 warnx("%s cleared", name);
550 }
551 }
552 }
553
554 if (sbwrite(&disk, Aflag) == -1)
555 goto err;
556 diskname = strdup(disk.d_name);
557 ufs_disk_close(&disk);
558 chkdoreload(getmntpoint(diskname), warnx);
559 exit(0);
560 err:
561 if (disk.d_error != NULL)
562 errx(11, "%s: %s", special, disk.d_error);
563 else
564 err(12, "%s", special);
565 }
566
567 static void
sbdirty(void)568 sbdirty(void)
569 {
570 disk.d_fs.fs_flags |= FS_UNCLEAN | FS_NEEDSFSCK;
571 disk.d_fs.fs_clean = 0;
572 }
573
574 static ufs2_daddr_t
journal_balloc(void)575 journal_balloc(void)
576 {
577 ufs2_daddr_t blk;
578 struct cg *cgp;
579 int valid;
580 static int contig = 1;
581
582 cgp = &disk.d_cg;
583 for (;;) {
584 blk = cgballoc(&disk);
585 if (blk > 0)
586 break;
587 /*
588 * If we failed to allocate a block from this cg, move to
589 * the next.
590 */
591 if (cgwrite(&disk) < 0) {
592 warn("Failed to write updated cg");
593 return (-1);
594 }
595 while ((valid = cgread(&disk)) == 1) {
596 /*
597 * Try to minimize fragmentation by requiring a minimum
598 * number of blocks present.
599 */
600 if (cgp->cg_cs.cs_nbfree > 256 * 1024)
601 break;
602 if (contig == 0 && cgp->cg_cs.cs_nbfree)
603 break;
604 }
605 if (valid)
606 continue;
607 /*
608 * Try once through looking only for large contiguous regions
609 * and again taking any space we can find.
610 */
611 if (contig) {
612 contig = 0;
613 disk.d_ccg = 0;
614 warnx("Journal file fragmented.");
615 continue;
616 }
617 warnx("Failed to find sufficient free blocks for the journal");
618 return -1;
619 }
620 if (bwrite(&disk, fsbtodb(&sblock, blk), clrbuf,
621 sblock.fs_bsize) <= 0) {
622 warn("Failed to initialize new block");
623 return -1;
624 }
625 return (blk);
626 }
627
628 /*
629 * Search a directory block for the SUJ_FILE.
630 */
631 static ino_t
dir_search(ufs2_daddr_t blk,int bytes)632 dir_search(ufs2_daddr_t blk, int bytes)
633 {
634 char block[MAXBSIZE];
635 struct direct *dp;
636 int off;
637
638 if (bread(&disk, fsbtodb(&sblock, blk), block, bytes) <= 0) {
639 warn("Failed to read dir block");
640 return (-1);
641 }
642 for (off = 0; off < bytes; off += dp->d_reclen) {
643 dp = (struct direct *)&block[off];
644 if (dp->d_reclen == 0)
645 break;
646 if (dp->d_ino == 0)
647 continue;
648 if (dp->d_namlen != strlen(SUJ_FILE))
649 continue;
650 if (bcmp(dp->d_name, SUJ_FILE, dp->d_namlen) != 0)
651 continue;
652 return (dp->d_ino);
653 }
654
655 return (0);
656 }
657
658 /*
659 * Search in the UFS_ROOTINO for the SUJ_FILE. If it exists we can not enable
660 * journaling.
661 */
662 static ino_t
journal_findfile(void)663 journal_findfile(void)
664 {
665 union dinodep dp;
666 ino_t ino;
667 int i;
668
669 if (getinode(&disk, &dp, UFS_ROOTINO) != 0) {
670 warn("Failed to get root inode: %s", disk.d_error);
671 return (-1);
672 }
673 if (sblock.fs_magic == FS_UFS1_MAGIC) {
674 if ((off_t)dp.dp1->di_size >= lblktosize(&sblock, UFS_NDADDR)) {
675 warnx("UFS_ROOTINO extends beyond direct blocks.");
676 return (-1);
677 }
678 for (i = 0; i < UFS_NDADDR; i++) {
679 if (dp.dp1->di_db[i] == 0)
680 break;
681 if ((ino = dir_search(dp.dp1->di_db[i],
682 sblksize(&sblock, (off_t)dp.dp1->di_size, i))) != 0)
683 return (ino);
684 }
685 } else {
686 if ((off_t)dp.dp2->di_size >= lblktosize(&sblock, UFS_NDADDR)) {
687 warnx("UFS_ROOTINO extends beyond direct blocks.");
688 return (-1);
689 }
690 for (i = 0; i < UFS_NDADDR; i++) {
691 if (dp.dp2->di_db[i] == 0)
692 break;
693 if ((ino = dir_search(dp.dp2->di_db[i],
694 sblksize(&sblock, (off_t)dp.dp2->di_size, i))) != 0)
695 return (ino);
696 }
697 }
698
699 return (0);
700 }
701
702 static void
dir_clear_block(const char * block,off_t off)703 dir_clear_block(const char *block, off_t off)
704 {
705 struct direct *dp;
706
707 for (; off < sblock.fs_bsize; off += DIRBLKSIZ) {
708 dp = (struct direct *)&block[off];
709 dp->d_ino = 0;
710 dp->d_reclen = DIRBLKSIZ;
711 dp->d_type = DT_UNKNOWN;
712 }
713 }
714
715 /*
716 * Insert the journal at inode 'ino' into directory blk 'blk' at the first
717 * free offset of 'off'. DIRBLKSIZ blocks after off are initialized as
718 * empty.
719 */
720 static int
dir_insert(ufs2_daddr_t blk,off_t off,ino_t ino)721 dir_insert(ufs2_daddr_t blk, off_t off, ino_t ino)
722 {
723 struct direct *dp;
724 char block[MAXBSIZE];
725
726 if (bread(&disk, fsbtodb(&sblock, blk), block, sblock.fs_bsize) <= 0) {
727 warn("Failed to read dir block");
728 return (-1);
729 }
730 bzero(&block[off], sblock.fs_bsize - off);
731 dp = (struct direct *)&block[off];
732 dp->d_ino = ino;
733 dp->d_reclen = DIRBLKSIZ;
734 dp->d_type = DT_REG;
735 dp->d_namlen = strlen(SUJ_FILE);
736 bcopy(SUJ_FILE, &dp->d_name, strlen(SUJ_FILE));
737 dir_clear_block(block, off + DIRBLKSIZ);
738 if (bwrite(&disk, fsbtodb(&sblock, blk), block, sblock.fs_bsize) <= 0) {
739 warn("Failed to write dir block");
740 return (-1);
741 }
742 return (0);
743 }
744
745 /*
746 * Extend a directory block in 'blk' by copying it to a full size block
747 * and inserting the new journal inode into .sujournal.
748 */
749 static int
dir_extend(ufs2_daddr_t blk,ufs2_daddr_t nblk,off_t size,ino_t ino)750 dir_extend(ufs2_daddr_t blk, ufs2_daddr_t nblk, off_t size, ino_t ino)
751 {
752 char block[MAXBSIZE];
753
754 if (bread(&disk, fsbtodb(&sblock, blk), block,
755 roundup(size, sblock.fs_fsize)) <= 0) {
756 warn("Failed to read dir block");
757 return (-1);
758 }
759 dir_clear_block(block, size);
760 if (bwrite(&disk, fsbtodb(&sblock, nblk), block, sblock.fs_bsize)
761 <= 0) {
762 warn("Failed to write dir block");
763 return (-1);
764 }
765
766 return (dir_insert(nblk, size, ino));
767 }
768
769 /*
770 * Insert the journal file into the UFS_ROOTINO directory. We always extend the
771 * last frag
772 */
773 static int
journal_insertfile(ino_t ino)774 journal_insertfile(ino_t ino)
775 {
776 union dinodep dp;
777 ufs2_daddr_t nblk;
778 ufs2_daddr_t blk;
779 ufs_lbn_t lbn;
780 int size;
781 int off;
782
783 if (getinode(&disk, &dp, UFS_ROOTINO) != 0) {
784 warn("Failed to get root inode: %s", disk.d_error);
785 sbdirty();
786 return (-1);
787 }
788 blk = 0;
789 size = 0;
790 nblk = journal_balloc();
791 if (nblk <= 0)
792 return (-1);
793 /*
794 * For simplicity sake we aways extend the UFS_ROOTINO into a new
795 * directory block rather than searching for space and inserting
796 * into an existing block. However, if the rootino has frags
797 * have to free them and extend the block.
798 */
799 if (sblock.fs_magic == FS_UFS1_MAGIC) {
800 lbn = lblkno(&sblock, dp.dp1->di_size);
801 off = blkoff(&sblock, dp.dp1->di_size);
802 blk = dp.dp1->di_db[lbn];
803 size = sblksize(&sblock, (off_t)dp.dp1->di_size, lbn);
804 } else {
805 lbn = lblkno(&sblock, dp.dp2->di_size);
806 off = blkoff(&sblock, dp.dp2->di_size);
807 blk = dp.dp2->di_db[lbn];
808 size = sblksize(&sblock, (off_t)dp.dp2->di_size, lbn);
809 }
810 if (off != 0) {
811 if (dir_extend(blk, nblk, off, ino) == -1)
812 return (-1);
813 } else {
814 blk = 0;
815 if (dir_insert(nblk, 0, ino) == -1)
816 return (-1);
817 }
818 if (sblock.fs_magic == FS_UFS1_MAGIC) {
819 dp.dp1->di_blocks += (sblock.fs_bsize - size) / DEV_BSIZE;
820 dp.dp1->di_db[lbn] = nblk;
821 dp.dp1->di_size = lblktosize(&sblock, lbn+1);
822 } else {
823 dp.dp2->di_blocks += (sblock.fs_bsize - size) / DEV_BSIZE;
824 dp.dp2->di_db[lbn] = nblk;
825 dp.dp2->di_size = lblktosize(&sblock, lbn+1);
826 }
827 if (putinode(&disk) < 0) {
828 warn("Failed to write root inode: %s", disk.d_error);
829 return (-1);
830 }
831 if (cgwrite(&disk) < 0) {
832 warn("Failed to write updated cg");
833 sbdirty();
834 return (-1);
835 }
836 if (blk) {
837 if (cgbfree(&disk, blk, size) < 0) {
838 warn("Failed to write cg");
839 return (-1);
840 }
841 }
842
843 return (0);
844 }
845
846 static int
indir_fill(ufs2_daddr_t blk,int level,int * resid)847 indir_fill(ufs2_daddr_t blk, int level, int *resid)
848 {
849 char indirbuf[MAXBSIZE];
850 ufs1_daddr_t *bap1;
851 ufs2_daddr_t *bap2;
852 ufs2_daddr_t nblk;
853 int ncnt;
854 int cnt;
855 int i;
856
857 bzero(indirbuf, sizeof(indirbuf));
858 bap1 = (ufs1_daddr_t *)indirbuf;
859 bap2 = (void *)bap1;
860 cnt = 0;
861 for (i = 0; i < NINDIR(&sblock) && *resid != 0; i++) {
862 nblk = journal_balloc();
863 if (nblk <= 0)
864 return (-1);
865 cnt++;
866 if (sblock.fs_magic == FS_UFS1_MAGIC)
867 *bap1++ = nblk;
868 else
869 *bap2++ = nblk;
870 if (level != 0) {
871 ncnt = indir_fill(nblk, level - 1, resid);
872 if (ncnt <= 0)
873 return (-1);
874 cnt += ncnt;
875 } else
876 (*resid)--;
877 }
878 if (bwrite(&disk, fsbtodb(&sblock, blk), indirbuf,
879 sblock.fs_bsize) <= 0) {
880 warn("Failed to write indirect");
881 return (-1);
882 }
883 return (cnt);
884 }
885
886 /*
887 * Clear the flag bits so the journal can be removed.
888 */
889 static void
journal_clear(void)890 journal_clear(void)
891 {
892 union dinodep dp;
893 ino_t ino;
894
895 ino = journal_findfile();
896 if (ino == (ino_t)-1 || ino == 0) {
897 warnx("Journal file does not exist");
898 return;
899 }
900 printf("Clearing journal flags from inode %ju\n", (uintmax_t)ino);
901 if (getinode(&disk, &dp, ino) != 0) {
902 warn("Failed to get journal inode: %s", disk.d_error);
903 return;
904 }
905 if (sblock.fs_magic == FS_UFS1_MAGIC)
906 dp.dp1->di_flags = 0;
907 else
908 dp.dp2->di_flags = 0;
909 if (putinode(&disk) < 0) {
910 warn("Failed to write journal inode: %s", disk.d_error);
911 return;
912 }
913 }
914
915 static int
journal_alloc(int64_t size)916 journal_alloc(int64_t size)
917 {
918 union dinodep dp;
919 ufs2_daddr_t blk;
920 struct cg *cgp;
921 int resid;
922 ino_t ino;
923 int blks;
924 time_t utime;
925 int i;
926
927 cgp = &disk.d_cg;
928 ino = 0;
929
930 /*
931 * If the journal file exists we can't allocate it.
932 */
933 ino = journal_findfile();
934 if (ino == (ino_t)-1) {
935 warnx("journal_findfile() failed.");
936 return (-1);
937 }
938 if (ino > 0) {
939 warnx("Journal file %s already exists, please remove.",
940 SUJ_FILE);
941 return (-1);
942 }
943 /*
944 * If the user didn't supply a size pick one based on the filesystem
945 * size constrained with hardcoded MIN and MAX values. We opt for
946 * 1/1024th of the filesystem up to MAX but not exceeding one CG and
947 * not less than the MIN.
948 */
949 if (size == 0) {
950 size = (sblock.fs_size * sblock.fs_bsize) / 1024;
951 if (size / sblock.fs_fsize > sblock.fs_fpg)
952 size = sblock.fs_fpg * sblock.fs_fsize;
953 size = MAX(SUJ_MIN, size);
954 }
955 /* fsck does not support fragments in journal files. */
956 size = roundup(size, sblock.fs_bsize);
957 resid = blocks = size / sblock.fs_bsize;
958 if (sblock.fs_cstotal.cs_nbfree < blocks) {
959 warn("Insufficient free space for %jd byte journal", size);
960 return (-1);
961 }
962 /*
963 * Find a cg with enough blocks to satisfy the journal
964 * size. Presently the journal does not span cgs.
965 */
966 while (cgread(&disk) == 1) {
967 if (cgp->cg_cs.cs_nifree == 0)
968 continue;
969 ino = cgialloc(&disk);
970 if (ino <= 0)
971 break;
972 printf("Using inode %ju in cg %d for %jd byte journal\n",
973 (uintmax_t)ino, cgp->cg_cgx, size);
974 if (getinode(&disk, &dp, ino) != 0) {
975 warn("Failed to get allocated inode: %s", disk.d_error);
976 sbdirty();
977 goto out;
978 }
979 /*
980 * We leave fields unrelated to the number of allocated
981 * blocks and size uninitialized. This causes legacy
982 * fsck implementations to clear the inode.
983 */
984 time(&utime);
985 if (sblock.fs_magic == FS_UFS1_MAGIC) {
986 bzero(dp.dp1, sizeof(*dp.dp1));
987 dp.dp1->di_size = size;
988 dp.dp1->di_mode = IFREG | IREAD;
989 dp.dp1->di_nlink = 1;
990 dp.dp1->di_flags =
991 SF_IMMUTABLE | SF_NOUNLINK | UF_NODUMP;
992 dp.dp1->di_atime = utime;
993 dp.dp1->di_mtime = utime;
994 dp.dp1->di_ctime = utime;
995 } else {
996 bzero(dp.dp2, sizeof(*dp.dp2));
997 dp.dp2->di_size = size;
998 dp.dp2->di_mode = IFREG | IREAD;
999 dp.dp2->di_nlink = 1;
1000 dp.dp2->di_flags =
1001 SF_IMMUTABLE | SF_NOUNLINK | UF_NODUMP;
1002 dp.dp2->di_atime = utime;
1003 dp.dp2->di_mtime = utime;
1004 dp.dp2->di_ctime = utime;
1005 dp.dp2->di_birthtime = utime;
1006 }
1007 for (i = 0; i < UFS_NDADDR && resid; i++, resid--) {
1008 blk = journal_balloc();
1009 if (blk <= 0)
1010 goto out;
1011 if (sblock.fs_magic == FS_UFS1_MAGIC) {
1012 dp.dp1->di_db[i] = blk;
1013 dp.dp1->di_blocks++;
1014 } else {
1015 dp.dp2->di_db[i] = blk;
1016 dp.dp2->di_blocks++;
1017 }
1018 }
1019 for (i = 0; i < UFS_NIADDR && resid; i++) {
1020 blk = journal_balloc();
1021 if (blk <= 0)
1022 goto out;
1023 blks = indir_fill(blk, i, &resid) + 1;
1024 if (blks <= 0) {
1025 sbdirty();
1026 goto out;
1027 }
1028 if (sblock.fs_magic == FS_UFS1_MAGIC) {
1029 dp.dp1->di_ib[i] = blk;
1030 dp.dp1->di_blocks += blks;
1031 } else {
1032 dp.dp2->di_ib[i] = blk;
1033 dp.dp2->di_blocks += blks;
1034 }
1035 }
1036 if (sblock.fs_magic == FS_UFS1_MAGIC)
1037 dp.dp1->di_blocks *= sblock.fs_bsize / disk.d_bsize;
1038 else
1039 dp.dp2->di_blocks *= sblock.fs_bsize / disk.d_bsize;
1040 if (putinode(&disk) < 0) {
1041 warn("Failed to write allocated inode: %s",
1042 disk.d_error);
1043 sbdirty();
1044 return (-1);
1045 }
1046 if (cgwrite(&disk) < 0) {
1047 warn("Failed to write updated cg");
1048 sbdirty();
1049 return (-1);
1050 }
1051 if (journal_insertfile(ino) < 0) {
1052 sbdirty();
1053 return (-1);
1054 }
1055 sblock.fs_sujfree = 0;
1056 return (0);
1057 }
1058 warnx("Insufficient free space for the journal.");
1059 out:
1060 return (-1);
1061 }
1062
1063 static void
usage(void)1064 usage(void)
1065 {
1066 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n",
1067 "usage: tunefs [-A] [-a enable | disable] [-e maxbpg] [-f avgfilesize]",
1068 " [-J enable | disable] [-j enable | disable] [-k metaspace]",
1069 " [-L volname] [-l enable | disable] [-m minfree]",
1070 " [-N enable | disable] [-n enable | disable]",
1071 " [-o space | time] [-p] [-s avgfpdir] [-t enable | disable]",
1072 " special | filesystem");
1073 exit(2);
1074 }
1075
1076 static void
printfs(void)1077 printfs(void)
1078 {
1079 warnx("POSIX.1e ACLs: (-a) %s",
1080 (sblock.fs_flags & FS_ACLS)? "enabled" : "disabled");
1081 warnx("NFSv4 ACLs: (-N) %s",
1082 (sblock.fs_flags & FS_NFS4ACLS)? "enabled" : "disabled");
1083 warnx("MAC multilabel: (-l) %s",
1084 (sblock.fs_flags & FS_MULTILABEL)? "enabled" : "disabled");
1085 warnx("soft updates: (-n) %s",
1086 (sblock.fs_flags & FS_DOSOFTDEP)? "enabled" : "disabled");
1087 warnx("soft update journaling: (-j) %s",
1088 (sblock.fs_flags & FS_SUJ)? "enabled" : "disabled");
1089 warnx("gjournal: (-J) %s",
1090 (sblock.fs_flags & FS_GJOURNAL)? "enabled" : "disabled");
1091 warnx("trim: (-t) %s",
1092 (sblock.fs_flags & FS_TRIM)? "enabled" : "disabled");
1093 warnx("maximum blocks per file in a cylinder group: (-e) %d",
1094 sblock.fs_maxbpg);
1095 warnx("average file size: (-f) %d",
1096 sblock.fs_avgfilesize);
1097 warnx("average number of files in a directory: (-s) %d",
1098 sblock.fs_avgfpdir);
1099 warnx("minimum percentage of free space: (-m) %d%%",
1100 sblock.fs_minfree);
1101 warnx("space to hold for metadata blocks: (-k) %jd",
1102 sblock.fs_metaspace);
1103 warnx("optimization preference: (-o) %s",
1104 sblock.fs_optim == FS_OPTSPACE ? "space" : "time");
1105 if (sblock.fs_minfree >= MINFREE &&
1106 sblock.fs_optim == FS_OPTSPACE)
1107 warnx(OPTWARN, "time", ">=", MINFREE);
1108 if (sblock.fs_minfree < MINFREE &&
1109 sblock.fs_optim == FS_OPTTIME)
1110 warnx(OPTWARN, "space", "<", MINFREE);
1111 warnx("volume label: (-L) %s",
1112 sblock.fs_volname);
1113 }
1114