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 #if 0
33 #ifndef lint
34 static const char copyright[] =
35 "@(#) Copyright (c) 1983, 1993\n\
36 The Regents of the University of California. All rights reserved.\n";
37 #endif /* not lint */
38
39 #ifndef lint
40 static char sccsid[] = "@(#)tunefs.c 8.2 (Berkeley) 4/19/94";
41 #endif /* not lint */
42 #endif
43 #include <sys/cdefs.h>
44 __FBSDID("$FreeBSD$");
45
46 /*
47 * tunefs: change layout parameters to an existing file system.
48 */
49 #include <sys/param.h>
50 #include <sys/mount.h>
51 #include <sys/disklabel.h>
52 #include <sys/stat.h>
53
54 #include <ufs/ufs/ufsmount.h>
55 #include <ufs/ufs/dinode.h>
56 #include <ufs/ffs/fs.h>
57 #include <ufs/ufs/dir.h>
58
59 #include <ctype.h>
60 #include <err.h>
61 #include <fcntl.h>
62 #include <fstab.h>
63 #include <libufs.h>
64 #include <mntopts.h>
65 #include <paths.h>
66 #include <stdio.h>
67 #include <stdlib.h>
68 #include <stdint.h>
69 #include <string.h>
70 #include <time.h>
71 #include <unistd.h>
72
73 /* the optimization warning string template */
74 #define OPTWARN "should optimize for %s with minfree %s %d%%"
75
76 static int blocks;
77 static char clrbuf[MAXBSIZE];
78 static struct uufsd disk;
79 #define sblock disk.d_fs
80
81 static void usage(void);
82 static void printfs(void);
83 static int journal_alloc(int64_t size);
84 static void journal_clear(void);
85 static void sbdirty(void);
86
87 int
main(int argc,char * argv[])88 main(int argc, char *argv[])
89 {
90 const char *avalue, *jvalue, *Jvalue, *Lvalue, *lvalue, *Nvalue, *nvalue;
91 const char *tvalue;
92 const char *special, *on;
93 const char *name;
94 int active;
95 int Aflag, aflag, eflag, evalue, fflag, fvalue, jflag, Jflag, kflag;
96 int kvalue, Lflag, lflag, mflag, mvalue, Nflag, nflag, oflag, ovalue;
97 int pflag, sflag, svalue, Svalue, tflag;
98 int ch, found_arg, i;
99 int iovlen = 0;
100 const char *chg[2];
101 struct statfs stfs;
102 struct iovec *iov = NULL;
103 char errmsg[255] = {0};
104
105 if (argc < 3)
106 usage();
107 Aflag = aflag = eflag = fflag = jflag = Jflag = kflag = Lflag = 0;
108 lflag = mflag = Nflag = nflag = oflag = pflag = sflag = tflag = 0;
109 avalue = jvalue = Jvalue = Lvalue = lvalue = Nvalue = nvalue = NULL;
110 evalue = fvalue = mvalue = ovalue = svalue = Svalue = 0;
111 active = 0;
112 found_arg = 0; /* At least one arg is required. */
113 while ((ch = getopt(argc, argv, "Aa:e:f:j:J:k:L:l:m:N:n:o:ps:S:t:"))
114 != -1)
115 switch (ch) {
116
117 case 'A':
118 found_arg = 1;
119 Aflag++;
120 break;
121
122 case 'a':
123 found_arg = 1;
124 name = "POSIX.1e ACLs";
125 avalue = optarg;
126 if (strcmp(avalue, "enable") &&
127 strcmp(avalue, "disable")) {
128 errx(10, "bad %s (options are %s)",
129 name, "`enable' or `disable'");
130 }
131 aflag = 1;
132 break;
133
134 case 'e':
135 found_arg = 1;
136 name = "maximum blocks per file in a cylinder group";
137 evalue = atoi(optarg);
138 if (evalue < 1)
139 errx(10, "%s must be >= 1 (was %s)",
140 name, optarg);
141 eflag = 1;
142 break;
143
144 case 'f':
145 found_arg = 1;
146 name = "average file size";
147 fvalue = atoi(optarg);
148 if (fvalue < 1)
149 errx(10, "%s must be >= 1 (was %s)",
150 name, optarg);
151 fflag = 1;
152 break;
153
154 case 'j':
155 found_arg = 1;
156 name = "softdep journaled file system";
157 jvalue = optarg;
158 if (strcmp(jvalue, "enable") &&
159 strcmp(jvalue, "disable")) {
160 errx(10, "bad %s (options are %s)",
161 name, "`enable' or `disable'");
162 }
163 jflag = 1;
164 break;
165
166 case 'J':
167 found_arg = 1;
168 name = "gjournaled file system";
169 Jvalue = optarg;
170 if (strcmp(Jvalue, "enable") &&
171 strcmp(Jvalue, "disable")) {
172 errx(10, "bad %s (options are %s)",
173 name, "`enable' or `disable'");
174 }
175 Jflag = 1;
176 break;
177
178 case 'k':
179 found_arg = 1;
180 name = "space to hold for metadata blocks";
181 kvalue = atoi(optarg);
182 if (kvalue < 0)
183 errx(10, "bad %s (%s)", name, optarg);
184 kflag = 1;
185 break;
186
187 case 'L':
188 found_arg = 1;
189 name = "volume label";
190 Lvalue = optarg;
191 i = -1;
192 while (isalnum(Lvalue[++i]) || Lvalue[i] == '_' ||
193 Lvalue[i] == '-')
194 ;
195 if (Lvalue[i] != '\0') {
196 errx(10, "bad %s. Valid characters are "
197 "alphanumerics, dashes, and underscores.",
198 name);
199 }
200 if (strlen(Lvalue) >= MAXVOLLEN) {
201 errx(10, "bad %s. Length is longer than %d.",
202 name, MAXVOLLEN - 1);
203 }
204 Lflag = 1;
205 break;
206
207 case 'l':
208 found_arg = 1;
209 name = "multilabel MAC file system";
210 lvalue = optarg;
211 if (strcmp(lvalue, "enable") &&
212 strcmp(lvalue, "disable")) {
213 errx(10, "bad %s (options are %s)",
214 name, "`enable' or `disable'");
215 }
216 lflag = 1;
217 break;
218
219 case 'm':
220 found_arg = 1;
221 name = "minimum percentage of free space";
222 mvalue = atoi(optarg);
223 if (mvalue < 0 || mvalue > 99)
224 errx(10, "bad %s (%s)", name, optarg);
225 mflag = 1;
226 break;
227
228 case 'N':
229 found_arg = 1;
230 name = "NFSv4 ACLs";
231 Nvalue = optarg;
232 if (strcmp(Nvalue, "enable") &&
233 strcmp(Nvalue, "disable")) {
234 errx(10, "bad %s (options are %s)",
235 name, "`enable' or `disable'");
236 }
237 Nflag = 1;
238 break;
239
240 case 'n':
241 found_arg = 1;
242 name = "soft updates";
243 nvalue = optarg;
244 if (strcmp(nvalue, "enable") != 0 &&
245 strcmp(nvalue, "disable") != 0) {
246 errx(10, "bad %s (options are %s)",
247 name, "`enable' or `disable'");
248 }
249 nflag = 1;
250 break;
251
252 case 'o':
253 found_arg = 1;
254 name = "optimization preference";
255 if (strcmp(optarg, "space") == 0)
256 ovalue = FS_OPTSPACE;
257 else if (strcmp(optarg, "time") == 0)
258 ovalue = FS_OPTTIME;
259 else
260 errx(10,
261 "bad %s (options are `space' or `time')",
262 name);
263 oflag = 1;
264 break;
265
266 case 'p':
267 found_arg = 1;
268 pflag = 1;
269 break;
270
271 case 's':
272 found_arg = 1;
273 name = "expected number of files per directory";
274 svalue = atoi(optarg);
275 if (svalue < 1)
276 errx(10, "%s must be >= 1 (was %s)",
277 name, optarg);
278 sflag = 1;
279 break;
280
281 case 'S':
282 found_arg = 1;
283 name = "Softdep Journal Size";
284 Svalue = atoi(optarg);
285 if (Svalue < SUJ_MIN)
286 errx(10, "%s must be >= %d (was %s)",
287 name, SUJ_MIN, optarg);
288 break;
289
290 case 't':
291 found_arg = 1;
292 name = "trim";
293 tvalue = optarg;
294 if (strcmp(tvalue, "enable") != 0 &&
295 strcmp(tvalue, "disable") != 0) {
296 errx(10, "bad %s (options are %s)",
297 name, "`enable' or `disable'");
298 }
299 tflag = 1;
300 break;
301
302 default:
303 usage();
304 }
305 argc -= optind;
306 argv += optind;
307 if (found_arg == 0 || argc != 1)
308 usage();
309
310 on = special = argv[0];
311 if (ufs_disk_fillout(&disk, special) == -1)
312 goto err;
313 if (disk.d_name != special) {
314 if (statfs(special, &stfs) != 0)
315 warn("Can't stat %s", special);
316 if (strcmp(special, stfs.f_mntonname) == 0)
317 active = 1;
318 }
319
320 if (pflag) {
321 printfs();
322 exit(0);
323 }
324 if (Lflag) {
325 name = "volume label";
326 strncpy(sblock.fs_volname, Lvalue, MAXVOLLEN);
327 }
328 if (aflag) {
329 name = "POSIX.1e ACLs";
330 if (strcmp(avalue, "enable") == 0) {
331 if (sblock.fs_flags & FS_ACLS) {
332 warnx("%s remains unchanged as enabled", name);
333 } else if (sblock.fs_flags & FS_NFS4ACLS) {
334 warnx("%s and NFSv4 ACLs are mutually "
335 "exclusive", name);
336 } else {
337 sblock.fs_flags |= FS_ACLS;
338 warnx("%s set", name);
339 }
340 } else if (strcmp(avalue, "disable") == 0) {
341 if ((~sblock.fs_flags & FS_ACLS) ==
342 FS_ACLS) {
343 warnx("%s remains unchanged as disabled",
344 name);
345 } else {
346 sblock.fs_flags &= ~FS_ACLS;
347 warnx("%s cleared", name);
348 }
349 }
350 }
351 if (eflag) {
352 name = "maximum blocks per file in a cylinder group";
353 if (sblock.fs_maxbpg == evalue)
354 warnx("%s remains unchanged as %d", name, evalue);
355 else {
356 warnx("%s changes from %d to %d",
357 name, sblock.fs_maxbpg, evalue);
358 sblock.fs_maxbpg = evalue;
359 }
360 }
361 if (fflag) {
362 name = "average file size";
363 if (sblock.fs_avgfilesize == (unsigned)fvalue) {
364 warnx("%s remains unchanged as %d", name, fvalue);
365 }
366 else {
367 warnx("%s changes from %d to %d",
368 name, sblock.fs_avgfilesize, fvalue);
369 sblock.fs_avgfilesize = fvalue;
370 }
371 }
372 if (jflag) {
373 name = "soft updates journaling";
374 if (strcmp(jvalue, "enable") == 0) {
375 if ((sblock.fs_flags & (FS_DOSOFTDEP | FS_SUJ)) ==
376 (FS_DOSOFTDEP | FS_SUJ)) {
377 warnx("%s remains unchanged as enabled", name);
378 } else if (sblock.fs_clean == 0) {
379 warnx("%s cannot be enabled until fsck is run",
380 name);
381 } else if (journal_alloc(Svalue) != 0) {
382 warnx("%s cannot be enabled", name);
383 } else {
384 sblock.fs_flags |= FS_DOSOFTDEP | FS_SUJ;
385 warnx("%s set", name);
386 }
387 } else if (strcmp(jvalue, "disable") == 0) {
388 if ((~sblock.fs_flags & FS_SUJ) == FS_SUJ) {
389 warnx("%s remains unchanged as disabled", name);
390 } else {
391 journal_clear();
392 sblock.fs_flags &= ~FS_SUJ;
393 sblock.fs_sujfree = 0;
394 warnx("%s cleared but soft updates still set.",
395 name);
396
397 warnx("remove .sujournal to reclaim space");
398 }
399 }
400 }
401 if (Jflag) {
402 name = "gjournal";
403 if (strcmp(Jvalue, "enable") == 0) {
404 if (sblock.fs_flags & FS_GJOURNAL) {
405 warnx("%s remains unchanged as enabled", name);
406 } else {
407 sblock.fs_flags |= FS_GJOURNAL;
408 warnx("%s set", name);
409 }
410 } else if (strcmp(Jvalue, "disable") == 0) {
411 if ((~sblock.fs_flags & FS_GJOURNAL) ==
412 FS_GJOURNAL) {
413 warnx("%s remains unchanged as disabled",
414 name);
415 } else {
416 sblock.fs_flags &= ~FS_GJOURNAL;
417 warnx("%s cleared", name);
418 }
419 }
420 }
421 if (kflag) {
422 name = "space to hold for metadata blocks";
423 if (sblock.fs_metaspace == kvalue)
424 warnx("%s remains unchanged as %d", name, kvalue);
425 else {
426 kvalue = blknum(&sblock, kvalue);
427 if (kvalue > sblock.fs_fpg / 2) {
428 kvalue = blknum(&sblock, sblock.fs_fpg / 2);
429 warnx("%s cannot exceed half the file system "
430 "space", name);
431 }
432 warnx("%s changes from %jd to %d",
433 name, sblock.fs_metaspace, kvalue);
434 sblock.fs_metaspace = kvalue;
435 }
436 }
437 if (lflag) {
438 name = "multilabel";
439 if (strcmp(lvalue, "enable") == 0) {
440 if (sblock.fs_flags & FS_MULTILABEL) {
441 warnx("%s remains unchanged as enabled", name);
442 } else {
443 sblock.fs_flags |= FS_MULTILABEL;
444 warnx("%s set", name);
445 }
446 } else if (strcmp(lvalue, "disable") == 0) {
447 if ((~sblock.fs_flags & FS_MULTILABEL) ==
448 FS_MULTILABEL) {
449 warnx("%s remains unchanged as disabled",
450 name);
451 } else {
452 sblock.fs_flags &= ~FS_MULTILABEL;
453 warnx("%s cleared", name);
454 }
455 }
456 }
457 if (mflag) {
458 name = "minimum percentage of free space";
459 if (sblock.fs_minfree == mvalue)
460 warnx("%s remains unchanged as %d%%", name, mvalue);
461 else {
462 warnx("%s changes from %d%% to %d%%",
463 name, sblock.fs_minfree, mvalue);
464 sblock.fs_minfree = mvalue;
465 if (mvalue >= MINFREE && sblock.fs_optim == FS_OPTSPACE)
466 warnx(OPTWARN, "time", ">=", MINFREE);
467 if (mvalue < MINFREE && sblock.fs_optim == FS_OPTTIME)
468 warnx(OPTWARN, "space", "<", MINFREE);
469 }
470 }
471 if (Nflag) {
472 name = "NFSv4 ACLs";
473 if (strcmp(Nvalue, "enable") == 0) {
474 if (sblock.fs_flags & FS_NFS4ACLS) {
475 warnx("%s remains unchanged as enabled", name);
476 } else if (sblock.fs_flags & FS_ACLS) {
477 warnx("%s and POSIX.1e ACLs are mutually "
478 "exclusive", name);
479 } else {
480 sblock.fs_flags |= FS_NFS4ACLS;
481 warnx("%s set", name);
482 }
483 } else if (strcmp(Nvalue, "disable") == 0) {
484 if ((~sblock.fs_flags & FS_NFS4ACLS) ==
485 FS_NFS4ACLS) {
486 warnx("%s remains unchanged as disabled",
487 name);
488 } else {
489 sblock.fs_flags &= ~FS_NFS4ACLS;
490 warnx("%s cleared", name);
491 }
492 }
493 }
494 if (nflag) {
495 name = "soft updates";
496 if (strcmp(nvalue, "enable") == 0) {
497 if (sblock.fs_flags & FS_DOSOFTDEP)
498 warnx("%s remains unchanged as enabled", name);
499 else if (sblock.fs_clean == 0) {
500 warnx("%s cannot be enabled until fsck is run",
501 name);
502 } else {
503 sblock.fs_flags |= FS_DOSOFTDEP;
504 warnx("%s set", name);
505 }
506 } else if (strcmp(nvalue, "disable") == 0) {
507 if ((~sblock.fs_flags & FS_DOSOFTDEP) == FS_DOSOFTDEP)
508 warnx("%s remains unchanged as disabled", name);
509 else {
510 sblock.fs_flags &= ~FS_DOSOFTDEP;
511 warnx("%s cleared", name);
512 }
513 }
514 }
515 if (oflag) {
516 name = "optimization preference";
517 chg[FS_OPTSPACE] = "space";
518 chg[FS_OPTTIME] = "time";
519 if (sblock.fs_optim == ovalue)
520 warnx("%s remains unchanged as %s", name, chg[ovalue]);
521 else {
522 warnx("%s changes from %s to %s",
523 name, chg[sblock.fs_optim], chg[ovalue]);
524 sblock.fs_optim = ovalue;
525 if (sblock.fs_minfree >= MINFREE &&
526 ovalue == FS_OPTSPACE)
527 warnx(OPTWARN, "time", ">=", MINFREE);
528 if (sblock.fs_minfree < MINFREE && ovalue == FS_OPTTIME)
529 warnx(OPTWARN, "space", "<", MINFREE);
530 }
531 }
532 if (sflag) {
533 name = "expected number of files per directory";
534 if (sblock.fs_avgfpdir == (unsigned)svalue) {
535 warnx("%s remains unchanged as %d", name, svalue);
536 }
537 else {
538 warnx("%s changes from %d to %d",
539 name, sblock.fs_avgfpdir, svalue);
540 sblock.fs_avgfpdir = svalue;
541 }
542 }
543 if (tflag) {
544 name = "issue TRIM to the disk";
545 if (strcmp(tvalue, "enable") == 0) {
546 if (sblock.fs_flags & FS_TRIM)
547 warnx("%s remains unchanged as enabled", name);
548 else {
549 sblock.fs_flags |= FS_TRIM;
550 warnx("%s set", name);
551 }
552 } else if (strcmp(tvalue, "disable") == 0) {
553 if ((~sblock.fs_flags & FS_TRIM) == FS_TRIM)
554 warnx("%s remains unchanged as disabled", name);
555 else {
556 sblock.fs_flags &= ~FS_TRIM;
557 warnx("%s cleared", name);
558 }
559 }
560 }
561
562 if (sbwrite(&disk, Aflag) == -1)
563 goto err;
564 ufs_disk_close(&disk);
565 if (active) {
566 build_iovec_argf(&iov, &iovlen, "fstype", "ufs");
567 build_iovec_argf(&iov, &iovlen, "fspath", "%s", on);
568 build_iovec(&iov, &iovlen, "errmsg", errmsg, sizeof(errmsg));
569 if (nmount(iov, iovlen,
570 stfs.f_flags | MNT_UPDATE | MNT_RELOAD) < 0) {
571 if (errmsg[0])
572 err(9, "%s: reload: %s", special, errmsg);
573 else
574 err(9, "%s: reload", special);
575 }
576 warnx("file system reloaded");
577 }
578 exit(0);
579 err:
580 if (disk.d_error != NULL)
581 errx(11, "%s: %s", special, disk.d_error);
582 else
583 err(12, "%s", special);
584 }
585
586 static void
sbdirty(void)587 sbdirty(void)
588 {
589 disk.d_fs.fs_flags |= FS_UNCLEAN | FS_NEEDSFSCK;
590 disk.d_fs.fs_clean = 0;
591 }
592
593 static ufs2_daddr_t
journal_balloc(void)594 journal_balloc(void)
595 {
596 ufs2_daddr_t blk;
597 struct cg *cgp;
598 int valid;
599 static int contig = 1;
600
601 cgp = &disk.d_cg;
602 for (;;) {
603 blk = cgballoc(&disk);
604 if (blk > 0)
605 break;
606 /*
607 * If we failed to allocate a block from this cg, move to
608 * the next.
609 */
610 if (cgwrite(&disk) < 0) {
611 warn("Failed to write updated cg");
612 return (-1);
613 }
614 while ((valid = cgread(&disk)) == 1) {
615 /*
616 * Try to minimize fragmentation by requiring a minimum
617 * number of blocks present.
618 */
619 if (cgp->cg_cs.cs_nbfree > 256 * 1024)
620 break;
621 if (contig == 0 && cgp->cg_cs.cs_nbfree)
622 break;
623 }
624 if (valid)
625 continue;
626 /*
627 * Try once through looking only for large contiguous regions
628 * and again taking any space we can find.
629 */
630 if (contig) {
631 contig = 0;
632 disk.d_ccg = 0;
633 warnx("Journal file fragmented.");
634 continue;
635 }
636 warnx("Failed to find sufficient free blocks for the journal");
637 return -1;
638 }
639 if (bwrite(&disk, fsbtodb(&sblock, blk), clrbuf,
640 sblock.fs_bsize) <= 0) {
641 warn("Failed to initialize new block");
642 return -1;
643 }
644 return (blk);
645 }
646
647 /*
648 * Search a directory block for the SUJ_FILE.
649 */
650 static ino_t
dir_search(ufs2_daddr_t blk,int bytes)651 dir_search(ufs2_daddr_t blk, int bytes)
652 {
653 char block[MAXBSIZE];
654 struct direct *dp;
655 int off;
656
657 if (bread(&disk, fsbtodb(&sblock, blk), block, bytes) <= 0) {
658 warn("Failed to read dir block");
659 return (-1);
660 }
661 for (off = 0; off < bytes; off += dp->d_reclen) {
662 dp = (struct direct *)&block[off];
663 if (dp->d_reclen == 0)
664 break;
665 if (dp->d_ino == 0)
666 continue;
667 if (dp->d_namlen != strlen(SUJ_FILE))
668 continue;
669 if (bcmp(dp->d_name, SUJ_FILE, dp->d_namlen) != 0)
670 continue;
671 return (dp->d_ino);
672 }
673
674 return (0);
675 }
676
677 /*
678 * Search in the UFS_ROOTINO for the SUJ_FILE. If it exists we can not enable
679 * journaling.
680 */
681 static ino_t
journal_findfile(void)682 journal_findfile(void)
683 {
684 struct ufs1_dinode *dp1;
685 struct ufs2_dinode *dp2;
686 ino_t ino;
687 int mode;
688 void *ip;
689 int i;
690
691 if (getino(&disk, &ip, UFS_ROOTINO, &mode) != 0) {
692 warn("Failed to get root inode");
693 return (-1);
694 }
695 dp2 = ip;
696 dp1 = ip;
697 if (sblock.fs_magic == FS_UFS1_MAGIC) {
698 if ((off_t)dp1->di_size >= lblktosize(&sblock, UFS_NDADDR)) {
699 warnx("UFS_ROOTINO extends beyond direct blocks.");
700 return (-1);
701 }
702 for (i = 0; i < UFS_NDADDR; i++) {
703 if (dp1->di_db[i] == 0)
704 break;
705 if ((ino = dir_search(dp1->di_db[i],
706 sblksize(&sblock, (off_t)dp1->di_size, i))) != 0)
707 return (ino);
708 }
709 } else {
710 if ((off_t)dp2->di_size >= lblktosize(&sblock, UFS_NDADDR)) {
711 warnx("UFS_ROOTINO extends beyond direct blocks.");
712 return (-1);
713 }
714 for (i = 0; i < UFS_NDADDR; i++) {
715 if (dp2->di_db[i] == 0)
716 break;
717 if ((ino = dir_search(dp2->di_db[i],
718 sblksize(&sblock, (off_t)dp2->di_size, i))) != 0)
719 return (ino);
720 }
721 }
722
723 return (0);
724 }
725
726 static void
dir_clear_block(const char * block,off_t off)727 dir_clear_block(const char *block, off_t off)
728 {
729 struct direct *dp;
730
731 for (; off < sblock.fs_bsize; off += DIRBLKSIZ) {
732 dp = (struct direct *)&block[off];
733 dp->d_ino = 0;
734 dp->d_reclen = DIRBLKSIZ;
735 dp->d_type = DT_UNKNOWN;
736 }
737 }
738
739 /*
740 * Insert the journal at inode 'ino' into directory blk 'blk' at the first
741 * free offset of 'off'. DIRBLKSIZ blocks after off are initialized as
742 * empty.
743 */
744 static int
dir_insert(ufs2_daddr_t blk,off_t off,ino_t ino)745 dir_insert(ufs2_daddr_t blk, off_t off, ino_t ino)
746 {
747 struct direct *dp;
748 char block[MAXBSIZE];
749
750 if (bread(&disk, fsbtodb(&sblock, blk), block, sblock.fs_bsize) <= 0) {
751 warn("Failed to read dir block");
752 return (-1);
753 }
754 bzero(&block[off], sblock.fs_bsize - off);
755 dp = (struct direct *)&block[off];
756 dp->d_ino = ino;
757 dp->d_reclen = DIRBLKSIZ;
758 dp->d_type = DT_REG;
759 dp->d_namlen = strlen(SUJ_FILE);
760 bcopy(SUJ_FILE, &dp->d_name, strlen(SUJ_FILE));
761 dir_clear_block(block, off + DIRBLKSIZ);
762 if (bwrite(&disk, fsbtodb(&sblock, blk), block, sblock.fs_bsize) <= 0) {
763 warn("Failed to write dir block");
764 return (-1);
765 }
766 return (0);
767 }
768
769 /*
770 * Extend a directory block in 'blk' by copying it to a full size block
771 * and inserting the new journal inode into .sujournal.
772 */
773 static int
dir_extend(ufs2_daddr_t blk,ufs2_daddr_t nblk,off_t size,ino_t ino)774 dir_extend(ufs2_daddr_t blk, ufs2_daddr_t nblk, off_t size, ino_t ino)
775 {
776 char block[MAXBSIZE];
777
778 if (bread(&disk, fsbtodb(&sblock, blk), block,
779 roundup(size, sblock.fs_fsize)) <= 0) {
780 warn("Failed to read dir block");
781 return (-1);
782 }
783 dir_clear_block(block, size);
784 if (bwrite(&disk, fsbtodb(&sblock, nblk), block, sblock.fs_bsize)
785 <= 0) {
786 warn("Failed to write dir block");
787 return (-1);
788 }
789
790 return (dir_insert(nblk, size, ino));
791 }
792
793 /*
794 * Insert the journal file into the UFS_ROOTINO directory. We always extend the
795 * last frag
796 */
797 static int
journal_insertfile(ino_t ino)798 journal_insertfile(ino_t ino)
799 {
800 struct ufs1_dinode *dp1;
801 struct ufs2_dinode *dp2;
802 void *ip;
803 ufs2_daddr_t nblk;
804 ufs2_daddr_t blk;
805 ufs_lbn_t lbn;
806 int size;
807 int mode;
808 int off;
809
810 if (getino(&disk, &ip, UFS_ROOTINO, &mode) != 0) {
811 warn("Failed to get root inode");
812 sbdirty();
813 return (-1);
814 }
815 dp2 = ip;
816 dp1 = ip;
817 blk = 0;
818 size = 0;
819 nblk = journal_balloc();
820 if (nblk <= 0)
821 return (-1);
822 /*
823 * For simplicity sake we aways extend the UFS_ROOTINO into a new
824 * directory block rather than searching for space and inserting
825 * into an existing block. However, if the rootino has frags
826 * have to free them and extend the block.
827 */
828 if (sblock.fs_magic == FS_UFS1_MAGIC) {
829 lbn = lblkno(&sblock, dp1->di_size);
830 off = blkoff(&sblock, dp1->di_size);
831 blk = dp1->di_db[lbn];
832 size = sblksize(&sblock, (off_t)dp1->di_size, lbn);
833 } else {
834 lbn = lblkno(&sblock, dp2->di_size);
835 off = blkoff(&sblock, dp2->di_size);
836 blk = dp2->di_db[lbn];
837 size = sblksize(&sblock, (off_t)dp2->di_size, lbn);
838 }
839 if (off != 0) {
840 if (dir_extend(blk, nblk, off, ino) == -1)
841 return (-1);
842 } else {
843 blk = 0;
844 if (dir_insert(nblk, 0, ino) == -1)
845 return (-1);
846 }
847 if (sblock.fs_magic == FS_UFS1_MAGIC) {
848 dp1->di_blocks += (sblock.fs_bsize - size) / DEV_BSIZE;
849 dp1->di_db[lbn] = nblk;
850 dp1->di_size = lblktosize(&sblock, lbn+1);
851 } else {
852 dp2->di_blocks += (sblock.fs_bsize - size) / DEV_BSIZE;
853 dp2->di_db[lbn] = nblk;
854 dp2->di_size = lblktosize(&sblock, lbn+1);
855 }
856 if (putino(&disk) < 0) {
857 warn("Failed to write root inode");
858 return (-1);
859 }
860 if (cgwrite(&disk) < 0) {
861 warn("Failed to write updated cg");
862 sbdirty();
863 return (-1);
864 }
865 if (blk) {
866 if (cgbfree(&disk, blk, size) < 0) {
867 warn("Failed to write cg");
868 return (-1);
869 }
870 }
871
872 return (0);
873 }
874
875 static int
indir_fill(ufs2_daddr_t blk,int level,int * resid)876 indir_fill(ufs2_daddr_t blk, int level, int *resid)
877 {
878 char indirbuf[MAXBSIZE];
879 ufs1_daddr_t *bap1;
880 ufs2_daddr_t *bap2;
881 ufs2_daddr_t nblk;
882 int ncnt;
883 int cnt;
884 int i;
885
886 bzero(indirbuf, sizeof(indirbuf));
887 bap1 = (ufs1_daddr_t *)indirbuf;
888 bap2 = (void *)bap1;
889 cnt = 0;
890 for (i = 0; i < NINDIR(&sblock) && *resid != 0; i++) {
891 nblk = journal_balloc();
892 if (nblk <= 0)
893 return (-1);
894 cnt++;
895 if (sblock.fs_magic == FS_UFS1_MAGIC)
896 *bap1++ = nblk;
897 else
898 *bap2++ = nblk;
899 if (level != 0) {
900 ncnt = indir_fill(nblk, level - 1, resid);
901 if (ncnt <= 0)
902 return (-1);
903 cnt += ncnt;
904 } else
905 (*resid)--;
906 }
907 if (bwrite(&disk, fsbtodb(&sblock, blk), indirbuf,
908 sblock.fs_bsize) <= 0) {
909 warn("Failed to write indirect");
910 return (-1);
911 }
912 return (cnt);
913 }
914
915 /*
916 * Clear the flag bits so the journal can be removed.
917 */
918 static void
journal_clear(void)919 journal_clear(void)
920 {
921 struct ufs1_dinode *dp1;
922 struct ufs2_dinode *dp2;
923 ino_t ino;
924 int mode;
925 void *ip;
926
927 ino = journal_findfile();
928 if (ino == (ino_t)-1 || ino == 0) {
929 warnx("Journal file does not exist");
930 return;
931 }
932 printf("Clearing journal flags from inode %ju\n", (uintmax_t)ino);
933 if (getino(&disk, &ip, ino, &mode) != 0) {
934 warn("Failed to get journal inode");
935 return;
936 }
937 dp2 = ip;
938 dp1 = ip;
939 if (sblock.fs_magic == FS_UFS1_MAGIC)
940 dp1->di_flags = 0;
941 else
942 dp2->di_flags = 0;
943 if (putino(&disk) < 0) {
944 warn("Failed to write journal inode");
945 return;
946 }
947 }
948
949 static int
journal_alloc(int64_t size)950 journal_alloc(int64_t size)
951 {
952 struct ufs1_dinode *dp1;
953 struct ufs2_dinode *dp2;
954 ufs2_daddr_t blk;
955 void *ip;
956 struct cg *cgp;
957 int resid;
958 ino_t ino;
959 int blks;
960 int mode;
961 time_t utime;
962 int i;
963
964 cgp = &disk.d_cg;
965 ino = 0;
966
967 /*
968 * If the journal file exists we can't allocate it.
969 */
970 ino = journal_findfile();
971 if (ino == (ino_t)-1) {
972 warnx("journal_findfile() failed.");
973 return (-1);
974 }
975 if (ino > 0) {
976 warnx("Journal file %s already exists, please remove.",
977 SUJ_FILE);
978 return (-1);
979 }
980 /*
981 * If the user didn't supply a size pick one based on the filesystem
982 * size constrained with hardcoded MIN and MAX values. We opt for
983 * 1/1024th of the filesystem up to MAX but not exceeding one CG and
984 * not less than the MIN.
985 */
986 if (size == 0) {
987 size = (sblock.fs_size * sblock.fs_bsize) / 1024;
988 size = MIN(SUJ_MAX, size);
989 if (size / sblock.fs_fsize > sblock.fs_fpg)
990 size = sblock.fs_fpg * sblock.fs_fsize;
991 size = MAX(SUJ_MIN, size);
992 }
993 /* fsck does not support fragments in journal files. */
994 size = roundup(size, sblock.fs_bsize);
995 resid = blocks = size / sblock.fs_bsize;
996 if (sblock.fs_cstotal.cs_nbfree < blocks) {
997 warn("Insufficient free space for %jd byte journal", size);
998 return (-1);
999 }
1000 /*
1001 * Find a cg with enough blocks to satisfy the journal
1002 * size. Presently the journal does not span cgs.
1003 */
1004 while (cgread(&disk) == 1) {
1005 if (cgp->cg_cs.cs_nifree == 0)
1006 continue;
1007 ino = cgialloc(&disk);
1008 if (ino <= 0)
1009 break;
1010 printf("Using inode %ju in cg %d for %jd byte journal\n",
1011 (uintmax_t)ino, cgp->cg_cgx, size);
1012 if (getino(&disk, &ip, ino, &mode) != 0) {
1013 warn("Failed to get allocated inode");
1014 sbdirty();
1015 goto out;
1016 }
1017 /*
1018 * We leave fields unrelated to the number of allocated
1019 * blocks and size uninitialized. This causes legacy
1020 * fsck implementations to clear the inode.
1021 */
1022 dp2 = ip;
1023 dp1 = ip;
1024 time(&utime);
1025 if (sblock.fs_magic == FS_UFS1_MAGIC) {
1026 bzero(dp1, sizeof(*dp1));
1027 dp1->di_size = size;
1028 dp1->di_mode = IFREG | IREAD;
1029 dp1->di_nlink = 1;
1030 dp1->di_flags = SF_IMMUTABLE | SF_NOUNLINK | UF_NODUMP;
1031 dp1->di_atime = utime;
1032 dp1->di_mtime = utime;
1033 dp1->di_ctime = utime;
1034 } else {
1035 bzero(dp2, sizeof(*dp2));
1036 dp2->di_size = size;
1037 dp2->di_mode = IFREG | IREAD;
1038 dp2->di_nlink = 1;
1039 dp2->di_flags = SF_IMMUTABLE | SF_NOUNLINK | UF_NODUMP;
1040 dp2->di_atime = utime;
1041 dp2->di_mtime = utime;
1042 dp2->di_ctime = utime;
1043 dp2->di_birthtime = utime;
1044 }
1045 for (i = 0; i < UFS_NDADDR && resid; i++, resid--) {
1046 blk = journal_balloc();
1047 if (blk <= 0)
1048 goto out;
1049 if (sblock.fs_magic == FS_UFS1_MAGIC) {
1050 dp1->di_db[i] = blk;
1051 dp1->di_blocks++;
1052 } else {
1053 dp2->di_db[i] = blk;
1054 dp2->di_blocks++;
1055 }
1056 }
1057 for (i = 0; i < UFS_NIADDR && resid; i++) {
1058 blk = journal_balloc();
1059 if (blk <= 0)
1060 goto out;
1061 blks = indir_fill(blk, i, &resid) + 1;
1062 if (blks <= 0) {
1063 sbdirty();
1064 goto out;
1065 }
1066 if (sblock.fs_magic == FS_UFS1_MAGIC) {
1067 dp1->di_ib[i] = blk;
1068 dp1->di_blocks += blks;
1069 } else {
1070 dp2->di_ib[i] = blk;
1071 dp2->di_blocks += blks;
1072 }
1073 }
1074 if (sblock.fs_magic == FS_UFS1_MAGIC)
1075 dp1->di_blocks *= sblock.fs_bsize / disk.d_bsize;
1076 else
1077 dp2->di_blocks *= sblock.fs_bsize / disk.d_bsize;
1078 if (putino(&disk) < 0) {
1079 warn("Failed to write inode");
1080 sbdirty();
1081 return (-1);
1082 }
1083 if (cgwrite(&disk) < 0) {
1084 warn("Failed to write updated cg");
1085 sbdirty();
1086 return (-1);
1087 }
1088 if (journal_insertfile(ino) < 0) {
1089 sbdirty();
1090 return (-1);
1091 }
1092 sblock.fs_sujfree = 0;
1093 return (0);
1094 }
1095 warnx("Insufficient free space for the journal.");
1096 out:
1097 return (-1);
1098 }
1099
1100 static void
usage(void)1101 usage(void)
1102 {
1103 fprintf(stderr, "%s\n%s\n%s\n%s\n%s\n%s\n",
1104 "usage: tunefs [-A] [-a enable | disable] [-e maxbpg] [-f avgfilesize]",
1105 " [-J enable | disable] [-j enable | disable] [-k metaspace]",
1106 " [-L volname] [-l enable | disable] [-m minfree]",
1107 " [-N enable | disable] [-n enable | disable]",
1108 " [-o space | time] [-p] [-s avgfpdir] [-t enable | disable]",
1109 " special | filesystem");
1110 exit(2);
1111 }
1112
1113 static void
printfs(void)1114 printfs(void)
1115 {
1116 warnx("POSIX.1e ACLs: (-a) %s",
1117 (sblock.fs_flags & FS_ACLS)? "enabled" : "disabled");
1118 warnx("NFSv4 ACLs: (-N) %s",
1119 (sblock.fs_flags & FS_NFS4ACLS)? "enabled" : "disabled");
1120 warnx("MAC multilabel: (-l) %s",
1121 (sblock.fs_flags & FS_MULTILABEL)? "enabled" : "disabled");
1122 warnx("soft updates: (-n) %s",
1123 (sblock.fs_flags & FS_DOSOFTDEP)? "enabled" : "disabled");
1124 warnx("soft update journaling: (-j) %s",
1125 (sblock.fs_flags & FS_SUJ)? "enabled" : "disabled");
1126 warnx("gjournal: (-J) %s",
1127 (sblock.fs_flags & FS_GJOURNAL)? "enabled" : "disabled");
1128 warnx("trim: (-t) %s",
1129 (sblock.fs_flags & FS_TRIM)? "enabled" : "disabled");
1130 warnx("maximum blocks per file in a cylinder group: (-e) %d",
1131 sblock.fs_maxbpg);
1132 warnx("average file size: (-f) %d",
1133 sblock.fs_avgfilesize);
1134 warnx("average number of files in a directory: (-s) %d",
1135 sblock.fs_avgfpdir);
1136 warnx("minimum percentage of free space: (-m) %d%%",
1137 sblock.fs_minfree);
1138 warnx("space to hold for metadata blocks: (-k) %jd",
1139 sblock.fs_metaspace);
1140 warnx("optimization preference: (-o) %s",
1141 sblock.fs_optim == FS_OPTSPACE ? "space" : "time");
1142 if (sblock.fs_minfree >= MINFREE &&
1143 sblock.fs_optim == FS_OPTSPACE)
1144 warnx(OPTWARN, "time", ">=", MINFREE);
1145 if (sblock.fs_minfree < MINFREE &&
1146 sblock.fs_optim == FS_OPTTIME)
1147 warnx(OPTWARN, "space", "<", MINFREE);
1148 warnx("volume label: (-L) %s",
1149 sblock.fs_volname);
1150 }
1151