1 /* $NetBSD: dumpfs.c,v 1.69 2023/11/06 12:18:59 hannken 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 1.69 2023/11/06 12:18:59 hannken 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 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 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 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 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("snapshot inodes"); 414 for (int s = 0; s < FSMAXSNAP; s++) { 415 printf(" %u", fs->fs_snapinum[s]); 416 } 417 printf("\n"); 418 printf("usrquota %" PRIu64 "\tgrpquota %" PRIu64 "\n", 419 fs->fs_quotafile[USRQUOTA], fs->fs_quotafile[GRPQUOTA]); 420 printf("flags\t"); 421 if (fs->fs_flags == 0) 422 printf("none"); 423 if (fs->fs_flags & FS_UNCLEAN) 424 printf("unclean "); 425 if (fs->fs_flags & FS_DOSOFTDEP) 426 printf("soft-updates "); 427 if (fs->fs_flags & FS_NEEDSFSCK) 428 printf("needs fsck run "); 429 if (fs->fs_flags & FS_SUJ) 430 printf("journaled soft-updates "); 431 if (fs->fs_flags & FS_POSIX1EACLS) 432 printf("posix1e acls "); 433 if (fs->fs_flags & FS_NFS4ACLS) 434 printf("nfs4 acls "); 435 if (fs->fs_flags & FS_MULTILABEL) 436 printf("multilabel "); 437 if (fs->fs_flags & FS_GJOURNAL) 438 printf("gjournal "); 439 if (fs->fs_flags & FS_FLAGS_UPDATED) 440 printf("fs_flags expanded "); 441 if (fs->fs_flags & FS_DOWAPBL) 442 printf("wapbl "); 443 if (fs->fs_flags & FS_DOQUOTA2) 444 printf("quotas "); 445 if (fs->fs_flags & FS_TRIM) 446 printf("trim "); 447 fsflags = fs->fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK | 448 FS_SUJ | FS_POSIX1EACLS | FS_MULTILABEL | FS_GJOURNAL | 449 FS_NFS4ACLS | FS_FLAGS_UPDATED | FS_DOWAPBL | 450 FS_DOQUOTA2 | FS_TRIM); 451 #ifdef FS_INDEXDIRS 452 if (fs->fs_flags & FS_INDEXDIRS) 453 printf("indexed directories "); 454 fsflags &= ~FS_INDEXDIRS 455 #endif 456 if (fsflags != 0) 457 printf("unknown flags (%#x)", fsflags); 458 printf("\nfsmnt\t%s\n", fs->fs_fsmnt); 459 if (!printold) { 460 printf("volname\t%s\tswuid\t%ju\n", 461 fs->fs_volname, (uintmax_t)fs->fs_swuid); 462 return 0; 463 } 464 465 if (fs->fs_old_cpc != 0) 466 printf("blocks available in each of %d rotational " 467 "positions\n", fs->fs_old_nrpos); 468 else 469 printf("(no rotational position table)\n\n"); 470 471 if (!ISOPT(opt_verbose)) { 472 return 0; 473 } 474 475 for (int c = 0; c < fs->fs_old_cpc; c++) { 476 printf("cylinder number %d:", c); 477 for (i = 0; i < fs->fs_old_nrpos; i++) { 478 if (old_fs_postbl(&afs, c, opostbl)[i] == -1) 479 continue; 480 printf("\n position %d:\t", i); 481 for (int j = old_fs_postbl(&afs, c, opostbl)[i], k = 1; 482 ; j += old_fs_rotbl(&afs)[j], k++) { 483 printf("%5d", j); 484 if (k % 12 == 0) 485 printf("\n\t\t"); 486 if (old_fs_rotbl(&afs)[j] == 0) 487 break; 488 } 489 } 490 printf("\n"); 491 } 492 493 return 0; 494 } 495 496 static int 497 print_cgsum(const char *name, int fd) 498 { 499 struct csum *ccsp; 500 int i, j, size; 501 uint32_t cgnum; 502 503 afs.fs_csp = calloc(1, afs.fs_cssize); 504 for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) { 505 size = afs.fs_cssize - i < afs.fs_bsize ? 506 afs.fs_cssize - i : afs.fs_bsize; 507 ccsp = (struct csum *)((char *)afs.fs_csp + i); 508 if (lseek(fd, 509 (off_t)(FFS_FSBTODB(&afs, (afs.fs_csaddr + j * afs.fs_frag))) * 510 dev_bsize, SEEK_SET) == (off_t)-1) 511 return 1; 512 if (read(fd, ccsp, size) != size) 513 return 1; 514 if (needswap) 515 ffs_csum_swap(ccsp, ccsp, size); 516 } 517 518 printf("cs[].cs_(nbfree,ndir,nifree,nffree):\n\t"); 519 for (cgnum = 0; cgnum < afs.fs_ncg; cgnum++) { 520 struct csum *cs = &afs.fs_cs(&afs, cgnum); 521 if (i && i % 4 == 0) 522 printf("\n\t"); 523 printf("(%d,%d,%d,%d) ", 524 cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree); 525 } 526 printf("\n"); 527 if (printold && (afs.fs_old_ncyl % afs.fs_old_cpg)) { 528 printf("cylinders in last group %d\n", 529 i = afs.fs_old_ncyl % afs.fs_old_cpg); 530 printf("blocks in last group %d\n", 531 i * afs.fs_old_spc / (afs.fs_old_nspf << afs.fs_fragshift)); 532 } 533 free(afs.fs_csp); 534 afs.fs_csp = NULL; 535 536 return 0; 537 } 538 539 static int 540 print_alt_super(const char *name, int fd) 541 { 542 union fsun alt; 543 uint32_t i; 544 off_t loc; 545 uint16_t alt_opostblsave[32*8]; 546 int save_printold; 547 548 for (i = 0; i < afs.fs_ncg; i++) { 549 loc = (off_t)(FFS_FSBTODB(&afs, cgsblock(&afs, i))) * dev_bsize; 550 printf("\nalternate %d\n", i); 551 if (pread(fd, &alt, sizeof alt, loc) != sizeof alt) { 552 warnx("%s: error reading alt %d", name, i); 553 return (1); 554 } 555 save_printold = printold; 556 fix_superblock(&alt.fs, alt_opostblsave); 557 if (print_superblock(&alt.fs, alt_opostblsave, name, fd, loc)) { 558 printold = save_printold; 559 return 1; 560 } 561 printold = save_printold; 562 } 563 return 0; 564 } 565 566 static int 567 print_cginfo(const char *name, int fd) 568 { 569 uint32_t i; 570 571 printf("\n"); 572 for (i = 0; i < afs.fs_ncg; i++) { 573 printf("\n"); 574 if (dumpcg(name, fd, i)) 575 return 1; 576 if (ISOPT(opt_inodes) && print_inodes(name, fd, i, 1)) 577 return 1; 578 } 579 return 0; 580 } 581 582 static int 583 print_inodes(const char *name, int fd, int c, int n) 584 { 585 void *ino_buf = malloc(afs.fs_bsize); 586 void (*print_inode)(int, int, void *); 587 ino_t inum; 588 uint32_t i; 589 590 if (ino_buf == 0) 591 return 1; 592 593 print_inode = is_ufs2 ? print_ufs2_inode : print_ufs1_inode; 594 595 for (inum = c * afs.fs_ipg ; inum < (c+n) * afs.fs_ipg; inum += afs.fs_inopb) { 596 if (pread(fd, ino_buf, afs.fs_bsize, 597 ino_to_fsba(&afs, inum) * afs.fs_fsize) != afs.fs_bsize) { 598 free(ino_buf); 599 return 1; 600 } 601 for (i = 0; i < afs.fs_inopb; i++) 602 print_inode(inum + i, i, ino_buf); 603 } 604 605 free(ino_buf); 606 return 0; 607 } 608 609 static int 610 dumpcg(const char *name, int fd, int c) 611 { 612 off_t cur; 613 int i, j; 614 time_t t; 615 616 printf("cg %d:\n", c); 617 if ((cur = lseek(fd, (off_t)(FFS_FSBTODB(&afs, cgtod(&afs, c))) * dev_bsize, 618 SEEK_SET)) == (off_t)-1) 619 return (1); 620 if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) { 621 warnx("%s: error reading cg", name); 622 return (1); 623 } 624 if (needswap) 625 ffs_cg_swap(&acg, &acg, &afs); 626 if (printold) 627 t = acg.cg_old_time; 628 else 629 t = acg.cg_time; 630 printf("magic\t%x\ttell\t%llx\ttime\t%s", 631 afs.fs_old_postblformat == FS_42POSTBLFMT ? 632 ((struct ocg *)&acg)->cg_magic : acg.cg_magic, 633 (long long)cur, ctime(&t)); 634 if (printold) 635 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n", 636 acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk, 637 acg.cg_ndblk); 638 else 639 printf("cgx\t%d\tniblk\t%d\tndblk\t%d\n", 640 acg.cg_cgx, acg.cg_niblk, acg.cg_ndblk); 641 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 642 acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir, 643 acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree); 644 printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum", 645 acg.cg_rotor, acg.cg_irotor, acg.cg_frotor); 646 for (i = 1, j = 0; i < afs.fs_frag; i++) { 647 printf("\t%d", acg.cg_frsum[i]); 648 j += i * acg.cg_frsum[i]; 649 } 650 printf("\nsum of frsum: %d", j); 651 if (afs.fs_contigsumsize > 0) { 652 for (i = 1; i < afs.fs_contigsumsize; i++) { 653 if ((i - 1) % 8 == 0) 654 printf("\nclusters %d-%d:", i, 655 afs.fs_contigsumsize - 1 < i + 7 ? 656 afs.fs_contigsumsize - 1 : i + 7); 657 printf("\t%d", cg_clustersum(&acg, 0)[i]); 658 } 659 printf("\nclusters size %d and over: %d\n", 660 afs.fs_contigsumsize, 661 cg_clustersum(&acg, 0)[afs.fs_contigsumsize]); 662 printf("clusters free:\t"); 663 pbits(0, cg_clustersfree(&acg, 0), acg.cg_nclusterblks); 664 } else 665 printf("\n"); 666 printf("iused:\t"); 667 pbits(0 * c * afs.fs_ipg, cg_inosused(&acg, 0), afs.fs_ipg); 668 printf("free:\t"); 669 pbits(0, cg_blksfree(&acg, 0), afs.fs_fpg); 670 if (printold && ISOPT(opt_verbose)) { 671 printf("b:\n"); 672 for (i = 0; i < afs.fs_old_cpg; i++) { 673 if (old_cg_blktot(&acg, 0)[i] == 0) 674 continue; 675 printf(" c%d:\t(%d)\t", i, old_cg_blktot(&acg, 0)[i]); 676 for (j = 0; j < afs.fs_old_nrpos; j++) { 677 if (afs.fs_old_cpc > 0 && 678 old_fs_postbl(&afs, i % afs.fs_old_cpc, opostblsave)[j] == -1) 679 continue; 680 printf(" %d", old_cg_blks(&afs, &acg, i, 0)[j]); 681 } 682 printf("\n"); 683 } 684 } 685 return (0); 686 } 687 688 static void 689 print_ufs1_inode(int inum, int i_off, void *ibuf) 690 { 691 struct ufs1_dinode *i = ibuf; 692 693 i += i_off; 694 695 if (needswap) 696 ffs_dinode1_swap(i,i); 697 698 if (afs.fs_old_inodefmt < FS_44INODEFMT) { 699 i->di_uid = i->di_ouid; 700 i->di_gid = i->di_ogid; 701 } 702 703 if (inum % afs.fs_ipg == 0) 704 printf(" inode: mode nlink size" 705 " ctime.nsec flags blocks" 706 " generation uid gid\n"); 707 if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose)) 708 return; 709 printf("%8u: %6o %6d %20" PRIu64 " %10u.%09u %8x %10u %8x %10u %10u\n", 710 inum, i->di_mode, i->di_nlink, i->di_size, 711 i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks, 712 i->di_gen, i->di_uid, i->di_gid); 713 } 714 715 static void 716 print_ufs2_inode(int inum, int i_off, void *ibuf) 717 { 718 struct ufs2_dinode *i = ibuf; 719 720 i += i_off; 721 722 if (needswap) 723 ffs_dinode2_swap(i,i); 724 725 if (inum % afs.fs_ipg == 0) 726 printf(" inode: mode nlink size" 727 " ctime.nsec flags blocks" 728 " generation uid gid\n"); 729 730 if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose)) 731 return; 732 733 printf("%8u: %6o %6d %20" PRIu64 " %10" PRIu64 ".%09u %8x %10" PRIu64 " %8x %10u %10u\n", 734 inum, i->di_mode, i->di_nlink, i->di_size, 735 i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks, 736 i->di_gen, i->di_uid, i->di_gid); 737 } 738 739 static void 740 pbits(int offset, void *vp, int max) 741 { 742 int i; 743 char *p; 744 int count, j; 745 746 for (count = i = 0, p = vp; i < max; i++) 747 if (isset(p, i)) { 748 if (count) 749 printf(",%s", count % 6 ? " " : "\n\t"); 750 count++; 751 printf("%d", offset + i); 752 j = i; 753 while ((i+1)<max && isset(p, i+1)) 754 i++; 755 if (i != j) 756 printf("-%d", offset + i); 757 } 758 printf("\n"); 759 } 760 761 static int 762 print_journal(const char *name, int fd) 763 { 764 daddr_t off; 765 size_t count, blklen, bno, skip; 766 off_t boff, head, tail, len; 767 uint32_t generation; 768 769 if (afs.fs_journal_version != UFS_WAPBL_VERSION) 770 return 0; 771 772 generation = 0; 773 head = tail = 0; 774 775 switch (afs.fs_journal_location) { 776 case UFS_WAPBL_JOURNALLOC_END_PARTITION: 777 case UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM: 778 779 off = afs.fs_journallocs[0]; 780 count = afs.fs_journallocs[1]; 781 blklen = afs.fs_journallocs[2]; 782 783 for (bno=0; bno<count; bno += skip / blklen) { 784 785 skip = blklen; 786 787 boff = bno * blklen; 788 if (bno * blklen >= 2 * blklen && 789 ((head >= tail && (boff < tail || boff >= head)) || 790 (head < tail && (boff >= head && boff < tail)))) 791 continue; 792 793 printf("journal block %lu offset %lld\n", 794 (unsigned long)bno, (long long) boff); 795 796 if (lseek(fd, (off_t)(off*blklen) + boff, SEEK_SET) 797 == (off_t)-1) 798 return (1); 799 if (read(fd, &jbuf, blklen) != (ssize_t)blklen) { 800 warnx("%s: error reading journal", name); 801 return 1; 802 } 803 804 switch (awh.wc_type) { 805 case 0: 806 break; 807 case WAPBL_WC_HEADER: 808 print_journal_header(name); 809 if (awh.wc_generation > generation) { 810 head = awh.wc_head; 811 tail = awh.wc_tail; 812 } 813 generation = awh.wc_generation; 814 skip = awh.wc_len; 815 break; 816 default: 817 len = print_journal_entries(name, blklen); 818 skip = awh.wc_len; 819 if (len != (off_t)skip) 820 printf(" CORRUPTED RECORD\n"); 821 break; 822 } 823 824 if (blklen == 0) 825 break; 826 827 skip = (skip + blklen - 1) / blklen * blklen; 828 if (skip == 0) 829 break; 830 831 } 832 break; 833 } 834 835 return 0; 836 } 837 838 static const char * 839 wapbl_type_string(unsigned t) 840 { 841 static char buf[12]; 842 843 switch (t) { 844 case WAPBL_WC_BLOCKS: 845 return "blocks"; 846 case WAPBL_WC_REVOCATIONS: 847 return "revocations"; 848 case WAPBL_WC_INODES: 849 return "inodes"; 850 case WAPBL_WC_HEADER: 851 return "header"; 852 } 853 854 snprintf(buf,sizeof(buf),"%08x",t); 855 return buf; 856 } 857 858 static void 859 print_journal_header(const char *name) 860 { 861 printf(" type %s len %d version %u\n", 862 wapbl_type_string(awh.wc_type), awh.wc_len, 863 awh.wc_version); 864 printf(" checksum %08x generation %9u\n", 865 awh.wc_checksum, awh.wc_generation); 866 printf(" fsid %08x.%08x time %llu nsec %u\n", 867 awh.wc_fsid[0], awh.wc_fsid[1], 868 (unsigned long long)awh.wc_time, awh.wc_timensec); 869 printf(" log_bshift %10u fs_bshift %10u\n", 870 awh.wc_log_dev_bshift, awh.wc_fs_dev_bshift); 871 printf(" head %10lld tail %10lld\n", 872 (long long)awh.wc_head, (long long)awh.wc_tail); 873 printf(" circ_off %10lld circ_size %10lld\n", 874 (long long)awh.wc_circ_off, (long long)awh.wc_circ_size); 875 } 876 877 static off_t 878 print_journal_entries(const char *name, size_t blklen) 879 { 880 int i, n; 881 struct wapbl_wc_blocklist *wcb; 882 struct wapbl_wc_inodelist *wci; 883 off_t len = 0; 884 int ph; 885 886 printf(" type %s len %d", 887 wapbl_type_string(awn.wc_type), awn.wc_len); 888 889 switch (awn.wc_type) { 890 case WAPBL_WC_BLOCKS: 891 case WAPBL_WC_REVOCATIONS: 892 wcb = (struct wapbl_wc_blocklist *)&awn; 893 printf(" blkcount %u\n", wcb->wc_blkcount); 894 ph = (blklen - offsetof(struct wapbl_wc_blocklist, wc_blocks)) 895 / sizeof(wcb->wc_blocks[0]); 896 n = MIN(wcb->wc_blkcount, ph); 897 for (i=0; i<n; i++) { 898 if (ISOPT(opt_verbose)) { 899 printf(" %3d: daddr %14llu dlen %d\n", i, 900 (unsigned long long)wcb->wc_blocks[i].wc_daddr, 901 wcb->wc_blocks[i].wc_dlen); 902 } 903 len += wcb->wc_blocks[i].wc_dlen; 904 } 905 if (awn.wc_type == WAPBL_WC_BLOCKS) { 906 if (len % blklen) 907 len += blklen - len % blklen; 908 } else 909 len = 0; 910 break; 911 case WAPBL_WC_INODES: 912 wci = (struct wapbl_wc_inodelist *)&awn; 913 printf(" count %u clear %u\n", 914 wci->wc_inocnt, wci->wc_clear); 915 ph = (blklen - offsetof(struct wapbl_wc_inodelist, wc_inodes)) 916 / sizeof(wci->wc_inodes[0]); 917 n = MIN(wci->wc_inocnt, ph); 918 for (i=0; i<n; ++i) { 919 if (ISOPT(opt_verbose)) { 920 printf(" %3d: inumber %10u imode %08x\n", i, 921 wci->wc_inodes[i].wc_inumber, 922 wci->wc_inodes[i].wc_imode); 923 } 924 } 925 break; 926 default: 927 printf("\n"); 928 break; 929 } 930 931 return len + blklen; 932 } 933 934 static void 935 usage(void) 936 { 937 938 (void)fprintf(stderr, "usage: dumpfs [-acFijmsv] filesys | device [...]\n"); 939 exit(1); 940 } 941 942 static int 943 openpartition(const char *name, int flags, char *device, size_t devicelen) 944 { 945 char rawspec[MAXPATHLEN], xbuf[MAXPATHLEN], *p; 946 struct fstab *fs; 947 int fd, oerrno; 948 949 fs = getfsfile(name); 950 if (fs) { 951 const char *fsspec; 952 fsspec = getfsspecname(xbuf, sizeof(xbuf), fs->fs_spec); 953 if (fsspec == NULL) { 954 warn("%s", xbuf); 955 return -1; 956 } 957 if ((p = strrchr(fsspec, '/')) != NULL) { 958 snprintf(rawspec, sizeof(rawspec), "%.*s/r%s", 959 (int)(p - fsspec), fsspec, p + 1); 960 name = rawspec; 961 } else 962 name = fsspec; 963 } 964 fd = opendisk(name, flags, device, devicelen, 0); 965 if (fd == -1 && errno == ENOENT) { 966 oerrno = errno; 967 strlcpy(device, name, devicelen); 968 errno = oerrno; 969 } 970 return (fd); 971 } 972
Indexes created Tue Sep 23 21:09:50 GMT 2025