1 /* $NetBSD: dumpfs.c,v 1.68 2023/01/07 19:41:30 chs Exp $ */
2
3 /*
4 * Copyright (c) 1983, 1992, 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 #include <sys/cdefs.h>
33 #ifndef lint
34 __COPYRIGHT("@(#) Copyright (c) 1983, 1992, 1993\
35 The Regents of the University of California. All rights reserved.");
36 #endif /* not lint */
37
38 #ifndef lint
39 #if 0
40 static char sccsid[] = "@(#)dumpfs.c 8.5 (Berkeley) 4/29/95";
41 #else
42 __RCSID("$NetBSD: dumpfs.c,v 1.68 2023/01/07 19:41:30 chs Exp $");
43 #endif
44 #endif /* not lint */
45
46 #include <sys/param.h>
47 #include <sys/time.h>
48
49 #include <sys/wapbl.h>
50 #include <sys/wapbl_replay.h>
51
52 #include <ufs/ufs/dinode.h>
53 #include <ufs/ufs/ufs_bswap.h>
54 #include <ufs/ufs/ufs_wapbl.h>
55 #include <ufs/ufs/quota.h>
56 #include <ufs/ffs/fs.h>
57 #include <ufs/ffs/ffs_extern.h>
58
59 #include <err.h>
60 #include <errno.h>
61 #include <fcntl.h>
62 #include <fstab.h>
63 #include <stdio.h>
64 #include <stdlib.h>
65 #include <string.h>
66 #include <stddef.h>
67 #include <unistd.h>
68 #include <util.h>
69
70 static union fsun {
71 struct fs fs;
72 char pad[MAXBSIZE];
73 } fsun;
74 #define afs fsun.fs
75
76 static uint16_t opostblsave[32*8];
77
78 static union {
79 struct cg cg;
80 char pad[MAXBSIZE];
81 } cgun;
82 #define acg cgun.cg
83
84 static union {
85 struct wapbl_wc_header wh;
86 struct wapbl_wc_null wn;
87 char pad[MAXBSIZE];
88 } jbuf;
89 #define awh jbuf.wh
90 #define awn jbuf.wn
91
92 #define OPT_FLAG(ch) (1 << ((ch) & 31))
93 #define ISOPT(opt) (opt_flags & (opt))
94 #define opt_alt_super OPT_FLAG('a')
95 #define opt_superblock OPT_FLAG('s')
96 #define opt_cg_summary OPT_FLAG('m')
97 #define opt_cg_info OPT_FLAG('c')
98 #define opt_inodes OPT_FLAG('i')
99 #define opt_journal OPT_FLAG('j')
100 #define opt_verbose OPT_FLAG('v')
101 #define DFLT_CHECK (opt_alt_super | opt_cg_info | opt_inodes | \
102 opt_cg_summary | opt_superblock | opt_journal )
103 #define DFLT_OPTS (opt_superblock | opt_cg_summary | opt_cg_info | opt_verbose)
104
105 static long dev_bsize = 512;
106 static int needswap, printold, is_ufs2;
107 static int Fflag;
108
109 static uint opt_flags;
110
111 static int dumpfs(const char *);
112 static int print_superblock(struct fs *, uint16_t *, const char *, int, off_t);
113 static int print_cgsum(const char *, int);
114 static int print_cginfo(const char *, int);
115 static int print_inodes(const char *, int, int, int);
116 static int print_alt_super(const char *, int);
117 static int print_journal(const char *, int);
118 static void print_journal_header(const char *);
119 static off_t print_journal_entries(const char *, size_t);
120 static int dumpcg(const char *, int, int);
121 static int openpartition(const char *, int, char *, size_t);
122 static void pbits(int, void *, int);
123 __dead static void usage(void);
124 static void print_ufs1_inode(int, int, void *);
125 static void print_ufs2_inode(int, int, void *);
126 static void fix_superblock(struct fs *, uint16_t *);
127
128 int
main(int argc,char * argv[])129 main(int argc, char *argv[])
130 {
131 int ch, eval;
132
133 while ((ch = getopt(argc, argv, "acijmsvF")) != -1)
134 switch(ch) {
135 case 'a': /* alternate superblocks */
136 case 'c': /* cylinder group info */
137 case 'i': /* actual inodes */
138 case 'j': /* journal */
139 case 'm': /* cylinder group summary */
140 case 's': /* superblock */
141 case 'v': /* more verbose */
142 opt_flags |= OPT_FLAG(ch);
143 break;
144 case 'F': /* File (not device) */
145 Fflag = 1;
146 break;
147 case '?':
148 default:
149 usage();
150 }
151 argc -= optind;
152 argv += optind;
153
154 if ((opt_flags & DFLT_CHECK) == 0)
155 opt_flags |= DFLT_OPTS;
156
157 if (argc < 1)
158 usage();
159
160 for (eval = 0; *argv; ++argv) {
161 eval |= dumpfs(*argv);
162 }
163
164 exit(eval);
165 }
166
167
168 static int
dumpfs(const char * name)169 dumpfs(const char *name)
170 {
171 static const off_t sblock_try[] = SBLOCKSEARCH;
172 char device[MAXPATHLEN];
173 int fd, i;
174 int rval = 1;
175
176 if (Fflag)
177 fd = open(name, O_RDONLY);
178 else {
179 fd = openpartition(name, O_RDONLY, device, sizeof(device));
180 name = device;
181 }
182 if (fd == -1)
183 goto err;
184
185 for (i = 0; ; i++) {
186 if (sblock_try[i] == -1) {
187 warnx("%s: could not find superblock, skipped", name);
188 return 1;
189 }
190 if (lseek(fd, sblock_try[i], SEEK_SET) == (off_t)-1)
191 continue;
192 if (read(fd, &afs, SBLOCKSIZE) != SBLOCKSIZE)
193 continue;
194 switch(afs.fs_magic) {
195 case FS_UFS2EA_MAGIC:
196 case FS_UFS2_MAGIC:
197 is_ufs2 = 1;
198 break;
199 case FS_UFS1_MAGIC:
200 break;
201 case FS_UFS2EA_MAGIC_SWAPPED:
202 case FS_UFS2_MAGIC_SWAPPED:
203 is_ufs2 = 1;
204 needswap = 1;
205 break;
206 case FS_UFS1_MAGIC_SWAPPED:
207 needswap = 1;
208 break;
209 default:
210 continue;
211 }
212 fix_superblock(&afs, opostblsave);
213 if (printold) {
214 if (sblock_try[i] == SBLOCK_UFS2)
215 /* This might be an alternate superblock */
216 continue;
217 } else {
218 if (sblock_try[i] != afs.fs_sblockloc)
219 /* This must be an alternate superblock */
220 continue;
221 }
222 break;
223 }
224
225
226 dev_bsize = afs.fs_fsize / FFS_FSBTODB(&afs, 1);
227
228 rval = 0;
229 printf("file system: %s\n", name);
230
231 if (ISOPT(opt_superblock))
232 rval = print_superblock(&afs, opostblsave, name, fd, sblock_try[i]);
233 if (rval == 0 && ISOPT(opt_cg_summary))
234 rval = print_cgsum(name, fd);
235 if (rval == 0 && ISOPT(opt_alt_super))
236 rval = print_alt_super(name, fd);
237 if (rval == 0 && ISOPT(opt_journal))
238 rval = print_journal(name, fd);
239 if (rval == 0 && ISOPT(opt_cg_info))
240 rval = print_cginfo(name, fd);
241 else if (rval == 0 && ISOPT(opt_inodes))
242 rval = print_inodes(name, fd, 0, afs.fs_ncg);
243
244 err:
245 if (fd != -1)
246 (void)close(fd);
247 if (rval)
248 warn("%s", name);
249 return rval;
250 }
251
252 static void
fix_superblock(struct fs * fs,uint16_t * opostbl)253 fix_superblock(struct fs *fs, uint16_t *opostbl)
254 {
255 if (needswap &&
256 (((int32_t)bswap32(fs->fs_old_postblformat) == FS_42POSTBLFMT) ||
257 (bswap32(fs->fs_old_postbloff) == offsetof(struct fs, fs_old_postbl_start)))) {
258 int i;
259 memcpy(opostbl, &fs->fs_old_postbl_start, 512);
260 for(i=0;i<256;i++)
261 opostbl[i] = bswap16(opostbl[i]);
262 } else if (!needswap &&
263 ((fs->fs_old_postblformat == FS_42POSTBLFMT) ||
264 (fs->fs_old_postbloff == offsetof(struct fs, fs_old_postbl_start)))) {
265 memcpy(opostbl, &fs->fs_old_postbl_start, 512);
266 }
267
268 if (needswap)
269 ffs_sb_swap(fs, fs);
270
271 printold = (fs->fs_magic == FS_UFS1_MAGIC &&
272 (fs->fs_old_flags & FS_FLAGS_UPDATED) == 0);
273 if (printold) {
274 fs->fs_sblockloc = SBLOCK_UFS1;
275 fs->fs_flags = fs->fs_old_flags;
276 fs->fs_maxbsize = fs->fs_bsize;
277 fs->fs_time = fs->fs_old_time;
278 fs->fs_size = fs->fs_old_size;
279 fs->fs_dsize = fs->fs_old_dsize;
280 fs->fs_csaddr = fs->fs_old_csaddr;
281 fs->fs_cstotal.cs_ndir = fs->fs_old_cstotal.cs_ndir;
282 fs->fs_cstotal.cs_nbfree = fs->fs_old_cstotal.cs_nbfree;
283 fs->fs_cstotal.cs_nifree = fs->fs_old_cstotal.cs_nifree;
284 fs->fs_cstotal.cs_nffree = fs->fs_old_cstotal.cs_nffree;
285 }
286
287 if (printold && fs->fs_old_postblformat == FS_42POSTBLFMT)
288 fs->fs_old_nrpos = 8;
289 }
290
291 static int
print_superblock(struct fs * fs,uint16_t * opostbl,const char * name,int fd,off_t sblock)292 print_superblock(struct fs *fs, uint16_t *opostbl,
293 const char *name, int fd, off_t sblock)
294 {
295 int i, size;
296 time_t t;
297 int32_t fsflags;
298
299 printf("format\tFFSv%d%s\n", is_ufs2+1,
300 fs->fs_magic == FS_UFS2EA_MAGIC ? "ea" : "");
301 #if BYTE_ORDER == LITTLE_ENDIAN
302 if (needswap)
303 #else
304 if (!needswap)
305 #endif
306 printf("endian\tbig-endian\n");
307 else
308 printf("endian\tlittle-endian\n");
309 t = fs->fs_time;
310 if ((sblock != SBLOCK_UFS1) || ISOPT(opt_alt_super))
311 printf("location %lld\t(-b %lld)\n",
312 (long long)sblock, (long long)(sblock/dev_bsize));
313 printf("magic\t%-8x\ttime\t%s",
314 fs->fs_magic, ctime(&t));
315
316 if (is_ufs2)
317 i = -1;
318 else {
319 i = 0;
320 if (fs->fs_old_postblformat != FS_42POSTBLFMT) {
321 i++;
322 if (fs->fs_old_inodefmt >= FS_44INODEFMT) {
323 int max;
324
325 i++;
326 max = fs->fs_maxcontig;
327 size = fs->fs_contigsumsize;
328 if ((max < 2 && size == 0)
329 || (max > 1 && size >= MIN(max, FS_MAXCONTIG)))
330 i++;
331 }
332 if (fs->fs_old_flags & FS_FLAGS_UPDATED) {
333 i = 4;
334 }
335 }
336 }
337 if (!printold || fs->fs_sblockloc != SBLOCK_UFS1 ||
338 fs->fs_id[0] || fs->fs_id[1])
339 printf("superblock location\t%jd\tid\t[ %x %x ]\n",
340 (intmax_t)fs->fs_sblockloc, fs->fs_id[0], fs->fs_id[1]);
341 if (!is_ufs2)
342 printf("cylgrp\t%s\tinodes\t%s\tsblock\t%s\tfslevel %d\n",
343 i < 1 ? "static" : "dynamic",
344 i < 2 ? "4.2/4.3BSD" : i < 5 ? "4.4BSD" : "FFSv2",
345 i < 4 ? "FFSv1" : "FFSv2", i);
346 printf("nbfree\t%lld\tndir\t%lld\tnifree\t%lld\tnffree\t%lld\n",
347 (long long)fs->fs_cstotal.cs_nbfree,
348 (long long)fs->fs_cstotal.cs_ndir,
349 (long long)fs->fs_cstotal.cs_nifree,
350 (long long)fs->fs_cstotal.cs_nffree);
351 if (printold)
352 printf("ncg\t%d\tncyl\t%d\tsize\t%lld\tblocks\t%lld\n",
353 fs->fs_ncg, fs->fs_old_ncyl, (long long)fs->fs_size, (long long)fs->fs_dsize);
354 else
355 printf("ncg\t%d\tsize\t%lld\tblocks\t%lld\n",
356 fs->fs_ncg, (long long)fs->fs_size, (long long)fs->fs_dsize);
357 printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
358 fs->fs_bsize, fs->fs_bshift, fs->fs_bmask);
359 printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
360 fs->fs_fsize, fs->fs_fshift, fs->fs_fmask);
361 printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
362 fs->fs_frag, fs->fs_fragshift, fs->fs_fsbtodb);
363 if (printold)
364 printf("cpg\t%d\t", fs->fs_old_cpg);
365 printf("bpg\t%d\tfpg\t%d\tipg\t%d\n",
366 fs->fs_fpg / fs->fs_frag, fs->fs_fpg, fs->fs_ipg);
367 printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n",
368 fs->fs_minfree, fs->fs_optim == FS_OPTSPACE ? "space" : "time",
369 fs->fs_maxcontig, fs->fs_maxbpg);
370 if (printold) {
371 printf("rotdelay %dms\theadswitch %dus\ttrackseek %dus\trps\t%d\n",
372 fs->fs_old_rotdelay, fs->fs_old_headswitch,
373 fs->fs_old_trkseek, fs->fs_old_rps);
374 printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n",
375 fs->fs_spare2, fs->fs_old_nsect, fs->fs_old_npsect,
376 fs->fs_old_spc);
377 }
378 printf("symlinklen %d\t", fs->fs_maxsymlinklen);
379 if (printold)
380 printf("trackskew %d\tinterleave %d\t",
381 fs->fs_old_trackskew, fs->fs_old_interleave);
382 printf("contigsumsize %d\n", fs->fs_contigsumsize);
383 printf("maxfilesize 0x%016llx\n",
384 (unsigned long long)fs->fs_maxfilesize);
385 if (printold)
386 printf("nindir\t%d\tinopb\t%d\tnspf\t%d\n", fs->fs_nindir,
387 fs->fs_inopb, fs->fs_old_nspf);
388 else
389 printf("nindir\t%d\tinopb\t%d\n", fs->fs_nindir, fs->fs_inopb);
390 if (!printold || (fs->fs_avgfilesize > 0) || (fs->fs_avgfpdir > 0))
391 printf("avgfilesize %d\tavgfpdir %d\n",
392 fs->fs_avgfilesize, fs->fs_avgfpdir);
393 printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
394 fs->fs_sblkno, fs->fs_cblkno, fs->fs_iblkno, fs->fs_dblkno);
395 printf("sbsize\t%d\tcgsize\t%d", fs->fs_sbsize, fs->fs_cgsize);
396 if (printold)
397 printf("\toffset\t%d\tmask\t0x%08x",
398 fs->fs_old_cgoffset, fs->fs_old_cgmask);
399 printf("\ncsaddr\t%lld\tcssize\t%d",
400 (long long)fs->fs_csaddr, fs->fs_cssize);
401 if (printold)
402 printf("\tshift\t%d\tmask\t0x%08x",
403 fs->fs_old_csshift, fs->fs_old_csmask);
404 printf("\ncgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t0x%02x\n",
405 fs->fs_cgrotor, fs->fs_fmod, fs->fs_ronly, fs->fs_clean);
406 printf("wapbl version 0x%x\tlocation %u\tflags 0x%x\n",
407 fs->fs_journal_version, fs->fs_journal_location,
408 fs->fs_journal_flags);
409 printf("wapbl loc0 %" PRIu64 "\tloc1 %" PRIu64,
410 fs->fs_journallocs[0], fs->fs_journallocs[1]);
411 printf("\tloc2 %" PRIu64 "\tloc3 %" PRIu64 "\n",
412 fs->fs_journallocs[2], fs->fs_journallocs[3]);
413 printf("usrquota %" PRIu64 "\tgrpquota %" PRIu64 "\n",
414 fs->fs_quotafile[USRQUOTA], fs->fs_quotafile[GRPQUOTA]);
415 printf("flags\t");
416 if (fs->fs_flags == 0)
417 printf("none");
418 if (fs->fs_flags & FS_UNCLEAN)
419 printf("unclean ");
420 if (fs->fs_flags & FS_DOSOFTDEP)
421 printf("soft-updates ");
422 if (fs->fs_flags & FS_NEEDSFSCK)
423 printf("needs fsck run ");
424 if (fs->fs_flags & FS_SUJ)
425 printf("journaled soft-updates ");
426 if (fs->fs_flags & FS_POSIX1EACLS)
427 printf("posix1e acls ");
428 if (fs->fs_flags & FS_NFS4ACLS)
429 printf("nfs4 acls ");
430 if (fs->fs_flags & FS_MULTILABEL)
431 printf("multilabel ");
432 if (fs->fs_flags & FS_GJOURNAL)
433 printf("gjournal ");
434 if (fs->fs_flags & FS_FLAGS_UPDATED)
435 printf("fs_flags expanded ");
436 if (fs->fs_flags & FS_DOWAPBL)
437 printf("wapbl ");
438 if (fs->fs_flags & FS_DOQUOTA2)
439 printf("quotas ");
440 if (fs->fs_flags & FS_TRIM)
441 printf("trim ");
442 fsflags = fs->fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK |
443 FS_SUJ | FS_POSIX1EACLS | FS_MULTILABEL | FS_GJOURNAL |
444 FS_NFS4ACLS | FS_FLAGS_UPDATED | FS_DOWAPBL |
445 FS_DOQUOTA2 | FS_TRIM);
446 #ifdef FS_INDEXDIRS
447 if (fs->fs_flags & FS_INDEXDIRS)
448 printf("indexed directories ");
449 fsflags &= ~FS_INDEXDIRS
450 #endif
451 if (fsflags != 0)
452 printf("unknown flags (%#x)", fsflags);
453 printf("\nfsmnt\t%s\n", fs->fs_fsmnt);
454 if (!printold) {
455 printf("volname\t%s\tswuid\t%ju\n",
456 fs->fs_volname, (uintmax_t)fs->fs_swuid);
457 return 0;
458 }
459
460 if (fs->fs_old_cpc != 0)
461 printf("blocks available in each of %d rotational "
462 "positions\n", fs->fs_old_nrpos);
463 else
464 printf("(no rotational position table)\n\n");
465
466 if (!ISOPT(opt_verbose)) {
467 return 0;
468 }
469
470 for (int c = 0; c < fs->fs_old_cpc; c++) {
471 printf("cylinder number %d:", c);
472 for (i = 0; i < fs->fs_old_nrpos; i++) {
473 if (old_fs_postbl(&afs, c, opostbl)[i] == -1)
474 continue;
475 printf("\n position %d:\t", i);
476 for (int j = old_fs_postbl(&afs, c, opostbl)[i], k = 1;
477 ; j += old_fs_rotbl(&afs)[j], k++) {
478 printf("%5d", j);
479 if (k % 12 == 0)
480 printf("\n\t\t");
481 if (old_fs_rotbl(&afs)[j] == 0)
482 break;
483 }
484 }
485 printf("\n");
486 }
487
488 return 0;
489 }
490
491 static int
print_cgsum(const char * name,int fd)492 print_cgsum(const char *name, int fd)
493 {
494 struct csum *ccsp;
495 int i, j, size;
496 uint32_t cgnum;
497
498 afs.fs_csp = calloc(1, afs.fs_cssize);
499 for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) {
500 size = afs.fs_cssize - i < afs.fs_bsize ?
501 afs.fs_cssize - i : afs.fs_bsize;
502 ccsp = (struct csum *)((char *)afs.fs_csp + i);
503 if (lseek(fd,
504 (off_t)(FFS_FSBTODB(&afs, (afs.fs_csaddr + j * afs.fs_frag))) *
505 dev_bsize, SEEK_SET) == (off_t)-1)
506 return 1;
507 if (read(fd, ccsp, size) != size)
508 return 1;
509 if (needswap)
510 ffs_csum_swap(ccsp, ccsp, size);
511 }
512
513 printf("cs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
514 for (cgnum = 0; cgnum < afs.fs_ncg; cgnum++) {
515 struct csum *cs = &afs.fs_cs(&afs, cgnum);
516 if (i && i % 4 == 0)
517 printf("\n\t");
518 printf("(%d,%d,%d,%d) ",
519 cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree);
520 }
521 printf("\n");
522 if (printold && (afs.fs_old_ncyl % afs.fs_old_cpg)) {
523 printf("cylinders in last group %d\n",
524 i = afs.fs_old_ncyl % afs.fs_old_cpg);
525 printf("blocks in last group %d\n",
526 i * afs.fs_old_spc / (afs.fs_old_nspf << afs.fs_fragshift));
527 }
528 free(afs.fs_csp);
529 afs.fs_csp = NULL;
530
531 return 0;
532 }
533
534 static int
print_alt_super(const char * name,int fd)535 print_alt_super(const char *name, int fd)
536 {
537 union fsun alt;
538 uint32_t i;
539 off_t loc;
540 uint16_t alt_opostblsave[32*8];
541 int save_printold;
542
543 for (i = 0; i < afs.fs_ncg; i++) {
544 loc = (off_t)(FFS_FSBTODB(&afs, cgsblock(&afs, i))) * dev_bsize;
545 printf("\nalternate %d\n", i);
546 if (pread(fd, &alt, sizeof alt, loc) != sizeof alt) {
547 warnx("%s: error reading alt %d", name, i);
548 return (1);
549 }
550 save_printold = printold;
551 fix_superblock(&alt.fs, alt_opostblsave);
552 if (print_superblock(&alt.fs, alt_opostblsave, name, fd, loc)) {
553 printold = save_printold;
554 return 1;
555 }
556 printold = save_printold;
557 }
558 return 0;
559 }
560
561 static int
print_cginfo(const char * name,int fd)562 print_cginfo(const char *name, int fd)
563 {
564 uint32_t i;
565
566 printf("\n");
567 for (i = 0; i < afs.fs_ncg; i++) {
568 printf("\n");
569 if (dumpcg(name, fd, i))
570 return 1;
571 if (ISOPT(opt_inodes) && print_inodes(name, fd, i, 1))
572 return 1;
573 }
574 return 0;
575 }
576
577 static int
print_inodes(const char * name,int fd,int c,int n)578 print_inodes(const char *name, int fd, int c, int n)
579 {
580 void *ino_buf = malloc(afs.fs_bsize);
581 void (*print_inode)(int, int, void *);
582 ino_t inum;
583 uint32_t i;
584
585 if (ino_buf == 0)
586 return 1;
587
588 print_inode = is_ufs2 ? print_ufs2_inode : print_ufs1_inode;
589
590 for (inum = c * afs.fs_ipg ; inum < (c+n) * afs.fs_ipg; inum += afs.fs_inopb) {
591 if (pread(fd, ino_buf, afs.fs_bsize,
592 ino_to_fsba(&afs, inum) * afs.fs_fsize) != afs.fs_bsize) {
593 free(ino_buf);
594 return 1;
595 }
596 for (i = 0; i < afs.fs_inopb; i++)
597 print_inode(inum + i, i, ino_buf);
598 }
599
600 free(ino_buf);
601 return 0;
602 }
603
604 static int
dumpcg(const char * name,int fd,int c)605 dumpcg(const char *name, int fd, int c)
606 {
607 off_t cur;
608 int i, j;
609 time_t t;
610
611 printf("cg %d:\n", c);
612 if ((cur = lseek(fd, (off_t)(FFS_FSBTODB(&afs, cgtod(&afs, c))) * dev_bsize,
613 SEEK_SET)) == (off_t)-1)
614 return (1);
615 if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) {
616 warnx("%s: error reading cg", name);
617 return (1);
618 }
619 if (needswap)
620 ffs_cg_swap(&acg, &acg, &afs);
621 if (printold)
622 t = acg.cg_old_time;
623 else
624 t = acg.cg_time;
625 printf("magic\t%x\ttell\t%llx\ttime\t%s",
626 afs.fs_old_postblformat == FS_42POSTBLFMT ?
627 ((struct ocg *)&acg)->cg_magic : acg.cg_magic,
628 (long long)cur, ctime(&t));
629 if (printold)
630 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
631 acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk,
632 acg.cg_ndblk);
633 else
634 printf("cgx\t%d\tniblk\t%d\tndblk\t%d\n",
635 acg.cg_cgx, acg.cg_niblk, acg.cg_ndblk);
636 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
637 acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir,
638 acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree);
639 printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum",
640 acg.cg_rotor, acg.cg_irotor, acg.cg_frotor);
641 for (i = 1, j = 0; i < afs.fs_frag; i++) {
642 printf("\t%d", acg.cg_frsum[i]);
643 j += i * acg.cg_frsum[i];
644 }
645 printf("\nsum of frsum: %d", j);
646 if (afs.fs_contigsumsize > 0) {
647 for (i = 1; i < afs.fs_contigsumsize; i++) {
648 if ((i - 1) % 8 == 0)
649 printf("\nclusters %d-%d:", i,
650 afs.fs_contigsumsize - 1 < i + 7 ?
651 afs.fs_contigsumsize - 1 : i + 7);
652 printf("\t%d", cg_clustersum(&acg, 0)[i]);
653 }
654 printf("\nclusters size %d and over: %d\n",
655 afs.fs_contigsumsize,
656 cg_clustersum(&acg, 0)[afs.fs_contigsumsize]);
657 printf("clusters free:\t");
658 pbits(0, cg_clustersfree(&acg, 0), acg.cg_nclusterblks);
659 } else
660 printf("\n");
661 printf("iused:\t");
662 pbits(0 * c * afs.fs_ipg, cg_inosused(&acg, 0), afs.fs_ipg);
663 printf("free:\t");
664 pbits(0, cg_blksfree(&acg, 0), afs.fs_fpg);
665 if (printold && ISOPT(opt_verbose)) {
666 printf("b:\n");
667 for (i = 0; i < afs.fs_old_cpg; i++) {
668 if (old_cg_blktot(&acg, 0)[i] == 0)
669 continue;
670 printf(" c%d:\t(%d)\t", i, old_cg_blktot(&acg, 0)[i]);
671 for (j = 0; j < afs.fs_old_nrpos; j++) {
672 if (afs.fs_old_cpc > 0 &&
673 old_fs_postbl(&afs, i % afs.fs_old_cpc, opostblsave)[j] == -1)
674 continue;
675 printf(" %d", old_cg_blks(&afs, &acg, i, 0)[j]);
676 }
677 printf("\n");
678 }
679 }
680 return (0);
681 }
682
683 static void
print_ufs1_inode(int inum,int i_off,void * ibuf)684 print_ufs1_inode(int inum, int i_off, void *ibuf)
685 {
686 struct ufs1_dinode *i = ibuf;
687
688 i += i_off;
689
690 if (needswap)
691 ffs_dinode1_swap(i,i);
692
693 if (afs.fs_old_inodefmt < FS_44INODEFMT) {
694 i->di_uid = i->di_ouid;
695 i->di_gid = i->di_ogid;
696 }
697
698 if (inum % afs.fs_ipg == 0)
699 printf(" inode: mode nlink size"
700 " ctime.nsec flags blocks"
701 " generation uid gid\n");
702 if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose))
703 return;
704 printf("%8u: %6o %6d %20" PRIu64 " %10u.%09u %8x %10u %8x %10u %10u\n",
705 inum, i->di_mode, i->di_nlink, i->di_size,
706 i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks,
707 i->di_gen, i->di_uid, i->di_gid);
708 }
709
710 static void
print_ufs2_inode(int inum,int i_off,void * ibuf)711 print_ufs2_inode(int inum, int i_off, void *ibuf)
712 {
713 struct ufs2_dinode *i = ibuf;
714
715 i += i_off;
716
717 if (needswap)
718 ffs_dinode2_swap(i,i);
719
720 if (inum % afs.fs_ipg == 0)
721 printf(" inode: mode nlink size"
722 " ctime.nsec flags blocks"
723 " generation uid gid\n");
724
725 if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose))
726 return;
727
728 printf("%8u: %6o %6d %20" PRIu64 " %10" PRIu64 ".%09u %8x %10" PRIu64 " %8x %10u %10u\n",
729 inum, i->di_mode, i->di_nlink, i->di_size,
730 i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks,
731 i->di_gen, i->di_uid, i->di_gid);
732 }
733
734 static void
pbits(int offset,void * vp,int max)735 pbits(int offset, void *vp, int max)
736 {
737 int i;
738 char *p;
739 int count, j;
740
741 for (count = i = 0, p = vp; i < max; i++)
742 if (isset(p, i)) {
743 if (count)
744 printf(",%s", count % 6 ? " " : "\n\t");
745 count++;
746 printf("%d", offset + i);
747 j = i;
748 while ((i+1)<max && isset(p, i+1))
749 i++;
750 if (i != j)
751 printf("-%d", offset + i);
752 }
753 printf("\n");
754 }
755
756 static int
print_journal(const char * name,int fd)757 print_journal(const char *name, int fd)
758 {
759 daddr_t off;
760 size_t count, blklen, bno, skip;
761 off_t boff, head, tail, len;
762 uint32_t generation;
763
764 if (afs.fs_journal_version != UFS_WAPBL_VERSION)
765 return 0;
766
767 generation = 0;
768 head = tail = 0;
769
770 switch (afs.fs_journal_location) {
771 case UFS_WAPBL_JOURNALLOC_END_PARTITION:
772 case UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM:
773
774 off = afs.fs_journallocs[0];
775 count = afs.fs_journallocs[1];
776 blklen = afs.fs_journallocs[2];
777
778 for (bno=0; bno<count; bno += skip / blklen) {
779
780 skip = blklen;
781
782 boff = bno * blklen;
783 if (bno * blklen >= 2 * blklen &&
784 ((head >= tail && (boff < tail || boff >= head)) ||
785 (head < tail && (boff >= head && boff < tail))))
786 continue;
787
788 printf("journal block %lu offset %lld\n",
789 (unsigned long)bno, (long long) boff);
790
791 if (lseek(fd, (off_t)(off*blklen) + boff, SEEK_SET)
792 == (off_t)-1)
793 return (1);
794 if (read(fd, &jbuf, blklen) != (ssize_t)blklen) {
795 warnx("%s: error reading journal", name);
796 return 1;
797 }
798
799 switch (awh.wc_type) {
800 case 0:
801 break;
802 case WAPBL_WC_HEADER:
803 print_journal_header(name);
804 if (awh.wc_generation > generation) {
805 head = awh.wc_head;
806 tail = awh.wc_tail;
807 }
808 generation = awh.wc_generation;
809 skip = awh.wc_len;
810 break;
811 default:
812 len = print_journal_entries(name, blklen);
813 skip = awh.wc_len;
814 if (len != (off_t)skip)
815 printf(" CORRUPTED RECORD\n");
816 break;
817 }
818
819 if (blklen == 0)
820 break;
821
822 skip = (skip + blklen - 1) / blklen * blklen;
823 if (skip == 0)
824 break;
825
826 }
827 break;
828 }
829
830 return 0;
831 }
832
833 static const char *
wapbl_type_string(unsigned t)834 wapbl_type_string(unsigned t)
835 {
836 static char buf[12];
837
838 switch (t) {
839 case WAPBL_WC_BLOCKS:
840 return "blocks";
841 case WAPBL_WC_REVOCATIONS:
842 return "revocations";
843 case WAPBL_WC_INODES:
844 return "inodes";
845 case WAPBL_WC_HEADER:
846 return "header";
847 }
848
849 snprintf(buf,sizeof(buf),"%08x",t);
850 return buf;
851 }
852
853 static void
print_journal_header(const char * name)854 print_journal_header(const char *name)
855 {
856 printf(" type %s len %d version %u\n",
857 wapbl_type_string(awh.wc_type), awh.wc_len,
858 awh.wc_version);
859 printf(" checksum %08x generation %9u\n",
860 awh.wc_checksum, awh.wc_generation);
861 printf(" fsid %08x.%08x time %llu nsec %u\n",
862 awh.wc_fsid[0], awh.wc_fsid[1],
863 (unsigned long long)awh.wc_time, awh.wc_timensec);
864 printf(" log_bshift %10u fs_bshift %10u\n",
865 awh.wc_log_dev_bshift, awh.wc_fs_dev_bshift);
866 printf(" head %10lld tail %10lld\n",
867 (long long)awh.wc_head, (long long)awh.wc_tail);
868 printf(" circ_off %10lld circ_size %10lld\n",
869 (long long)awh.wc_circ_off, (long long)awh.wc_circ_size);
870 }
871
872 static off_t
print_journal_entries(const char * name,size_t blklen)873 print_journal_entries(const char *name, size_t blklen)
874 {
875 int i, n;
876 struct wapbl_wc_blocklist *wcb;
877 struct wapbl_wc_inodelist *wci;
878 off_t len = 0;
879 int ph;
880
881 printf(" type %s len %d",
882 wapbl_type_string(awn.wc_type), awn.wc_len);
883
884 switch (awn.wc_type) {
885 case WAPBL_WC_BLOCKS:
886 case WAPBL_WC_REVOCATIONS:
887 wcb = (struct wapbl_wc_blocklist *)&awn;
888 printf(" blkcount %u\n", wcb->wc_blkcount);
889 ph = (blklen - offsetof(struct wapbl_wc_blocklist, wc_blocks))
890 / sizeof(wcb->wc_blocks[0]);
891 n = MIN(wcb->wc_blkcount, ph);
892 for (i=0; i<n; i++) {
893 if (ISOPT(opt_verbose)) {
894 printf(" %3d: daddr %14llu dlen %d\n", i,
895 (unsigned long long)wcb->wc_blocks[i].wc_daddr,
896 wcb->wc_blocks[i].wc_dlen);
897 }
898 len += wcb->wc_blocks[i].wc_dlen;
899 }
900 if (awn.wc_type == WAPBL_WC_BLOCKS) {
901 if (len % blklen)
902 len += blklen - len % blklen;
903 } else
904 len = 0;
905 break;
906 case WAPBL_WC_INODES:
907 wci = (struct wapbl_wc_inodelist *)&awn;
908 printf(" count %u clear %u\n",
909 wci->wc_inocnt, wci->wc_clear);
910 ph = (blklen - offsetof(struct wapbl_wc_inodelist, wc_inodes))
911 / sizeof(wci->wc_inodes[0]);
912 n = MIN(wci->wc_inocnt, ph);
913 for (i=0; i<n; ++i) {
914 if (ISOPT(opt_verbose)) {
915 printf(" %3d: inumber %10u imode %08x\n", i,
916 wci->wc_inodes[i].wc_inumber,
917 wci->wc_inodes[i].wc_imode);
918 }
919 }
920 break;
921 default:
922 printf("\n");
923 break;
924 }
925
926 return len + blklen;
927 }
928
929 static void
usage(void)930 usage(void)
931 {
932
933 (void)fprintf(stderr, "usage: dumpfs [-acFijmsv] filesys | device [...]\n");
934 exit(1);
935 }
936
937 static int
openpartition(const char * name,int flags,char * device,size_t devicelen)938 openpartition(const char *name, int flags, char *device, size_t devicelen)
939 {
940 char rawspec[MAXPATHLEN], xbuf[MAXPATHLEN], *p;
941 struct fstab *fs;
942 int fd, oerrno;
943
944 fs = getfsfile(name);
945 if (fs) {
946 const char *fsspec;
947 fsspec = getfsspecname(xbuf, sizeof(xbuf), fs->fs_spec);
948 if (fsspec == NULL) {
949 warn("%s", xbuf);
950 return -1;
951 }
952 if ((p = strrchr(fsspec, '/')) != NULL) {
953 snprintf(rawspec, sizeof(rawspec), "%.*s/r%s",
954 (int)(p - fsspec), fsspec, p + 1);
955 name = rawspec;
956 } else
957 name = fsspec;
958 }
959 fd = opendisk(name, flags, device, devicelen, 0);
960 if (fd == -1 && errno == ENOENT) {
961 oerrno = errno;
962 strlcpy(device, name, devicelen);
963 errno = oerrno;
964 }
965 return (fd);
966 }
967