dumpfs.c revision 1.66.2.1
1 /* $NetBSD: dumpfs.c,v 1.66.2.1 2022/12/20 09:49:21 martin 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 1.66.2.1 2022/12/20 09:49:21 martin 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("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 492 print_cgsum(const char *name, int fd) 493 { 494 struct csum *ccsp; 495 int i, j, size; 496 497 afs.fs_csp = calloc(1, afs.fs_cssize); 498 for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) { 499 size = afs.fs_cssize - i < afs.fs_bsize ? 500 afs.fs_cssize - i : afs.fs_bsize; 501 ccsp = (struct csum *)((char *)afs.fs_csp + i); 502 if (lseek(fd, 503 (off_t)(FFS_FSBTODB(&afs, (afs.fs_csaddr + j * afs.fs_frag))) * 504 dev_bsize, SEEK_SET) == (off_t)-1) 505 return 1; 506 if (read(fd, ccsp, size) != size) 507 return 1; 508 if (needswap) 509 ffs_csum_swap(ccsp, ccsp, size); 510 } 511 512 printf("cs[].cs_(nbfree,ndir,nifree,nffree):\n\t"); 513 for (i = 0; i < afs.fs_ncg; i++) { 514 struct csum *cs = &afs.fs_cs(&afs, i); 515 if (i && i % 4 == 0) 516 printf("\n\t"); 517 printf("(%d,%d,%d,%d) ", 518 cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree); 519 } 520 printf("\n"); 521 if (printold && (afs.fs_old_ncyl % afs.fs_old_cpg)) { 522 printf("cylinders in last group %d\n", 523 i = afs.fs_old_ncyl % afs.fs_old_cpg); 524 printf("blocks in last group %d\n", 525 i * afs.fs_old_spc / (afs.fs_old_nspf << afs.fs_fragshift)); 526 } 527 free(afs.fs_csp); 528 afs.fs_csp = NULL; 529 530 return 0; 531 } 532 533 static int 534 print_alt_super(const char *name, int fd) 535 { 536 union fsun alt; 537 int i; 538 off_t loc; 539 uint16_t alt_opostblsave[32*8]; 540 int save_printold; 541 542 for (i = 0; i < afs.fs_ncg; i++) { 543 loc = (off_t)(FFS_FSBTODB(&afs, cgsblock(&afs, i))) * dev_bsize; 544 printf("\nalternate %d\n", i); 545 if (pread(fd, &alt, sizeof alt, loc) != sizeof alt) { 546 warnx("%s: error reading alt %d", name, i); 547 return (1); 548 } 549 save_printold = printold; 550 fix_superblock(&alt.fs, alt_opostblsave); 551 if (print_superblock(&alt.fs, alt_opostblsave, name, fd, loc)) { 552 printold = save_printold; 553 return 1; 554 } 555 printold = save_printold; 556 } 557 return 0; 558 } 559 560 static int 561 print_cginfo(const char *name, int fd) 562 { 563 int i; 564 565 printf("\n"); 566 for (i = 0; i < afs.fs_ncg; i++) { 567 printf("\n"); 568 if (dumpcg(name, fd, i)) 569 return 1; 570 if (ISOPT(opt_inodes) && print_inodes(name, fd, i, 1)) 571 return 1; 572 } 573 return 0; 574 } 575 576 static int 577 print_inodes(const char *name, int fd, int c, int n) 578 { 579 void *ino_buf = malloc(afs.fs_bsize); 580 void (*print_inode)(int, int, void *); 581 int i, inum; 582 583 if (ino_buf == 0) 584 return 1; 585 586 print_inode = is_ufs2 ? print_ufs2_inode : print_ufs1_inode; 587 588 for (inum = c * afs.fs_ipg ; inum < (c+n) * afs.fs_ipg; inum += afs.fs_inopb) { 589 if (pread(fd, ino_buf, afs.fs_bsize, 590 ino_to_fsba(&afs, inum) * afs.fs_fsize) != afs.fs_bsize) { 591 free(ino_buf); 592 return 1; 593 } 594 for (i = 0; i < afs.fs_inopb; i++) 595 print_inode(inum + i, i, ino_buf); 596 } 597 598 free(ino_buf); 599 return 0; 600 } 601 602 static int 603 dumpcg(const char *name, int fd, int c) 604 { 605 off_t cur; 606 int i, j; 607 time_t t; 608 609 printf("cg %d:\n", c); 610 if ((cur = lseek(fd, (off_t)(FFS_FSBTODB(&afs, cgtod(&afs, c))) * dev_bsize, 611 SEEK_SET)) == (off_t)-1) 612 return (1); 613 if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) { 614 warnx("%s: error reading cg", name); 615 return (1); 616 } 617 if (needswap) 618 ffs_cg_swap(&acg, &acg, &afs); 619 if (printold) 620 t = acg.cg_old_time; 621 else 622 t = acg.cg_time; 623 printf("magic\t%x\ttell\t%llx\ttime\t%s", 624 afs.fs_old_postblformat == FS_42POSTBLFMT ? 625 ((struct ocg *)&acg)->cg_magic : acg.cg_magic, 626 (long long)cur, ctime(&t)); 627 if (printold) 628 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n", 629 acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk, 630 acg.cg_ndblk); 631 else 632 printf("cgx\t%d\tniblk\t%d\tndblk\t%d\n", 633 acg.cg_cgx, acg.cg_niblk, acg.cg_ndblk); 634 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 635 acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir, 636 acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree); 637 printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum", 638 acg.cg_rotor, acg.cg_irotor, acg.cg_frotor); 639 for (i = 1, j = 0; i < afs.fs_frag; i++) { 640 printf("\t%d", acg.cg_frsum[i]); 641 j += i * acg.cg_frsum[i]; 642 } 643 printf("\nsum of frsum: %d", j); 644 if (afs.fs_contigsumsize > 0) { 645 for (i = 1; i < afs.fs_contigsumsize; i++) { 646 if ((i - 1) % 8 == 0) 647 printf("\nclusters %d-%d:", i, 648 afs.fs_contigsumsize - 1 < i + 7 ? 649 afs.fs_contigsumsize - 1 : i + 7); 650 printf("\t%d", cg_clustersum(&acg, 0)[i]); 651 } 652 printf("\nclusters size %d and over: %d\n", 653 afs.fs_contigsumsize, 654 cg_clustersum(&acg, 0)[afs.fs_contigsumsize]); 655 printf("clusters free:\t"); 656 pbits(0, cg_clustersfree(&acg, 0), acg.cg_nclusterblks); 657 } else 658 printf("\n"); 659 printf("iused:\t"); 660 pbits(0 * c * afs.fs_ipg, cg_inosused(&acg, 0), afs.fs_ipg); 661 printf("free:\t"); 662 pbits(0, cg_blksfree(&acg, 0), afs.fs_fpg); 663 if (printold && ISOPT(opt_verbose)) { 664 printf("b:\n"); 665 for (i = 0; i < afs.fs_old_cpg; i++) { 666 if (old_cg_blktot(&acg, 0)[i] == 0) 667 continue; 668 printf(" c%d:\t(%d)\t", i, old_cg_blktot(&acg, 0)[i]); 669 for (j = 0; j < afs.fs_old_nrpos; j++) { 670 if (afs.fs_old_cpc > 0 && 671 old_fs_postbl(&afs, i % afs.fs_old_cpc, opostblsave)[j] == -1) 672 continue; 673 printf(" %d", old_cg_blks(&afs, &acg, i, 0)[j]); 674 } 675 printf("\n"); 676 } 677 } 678 return (0); 679 } 680 681 static void 682 print_ufs1_inode(int inum, int i_off, void *ibuf) 683 { 684 struct ufs1_dinode *i = ibuf; 685 686 i += i_off; 687 688 if (needswap) 689 ffs_dinode1_swap(i,i); 690 691 if (afs.fs_old_inodefmt < FS_44INODEFMT) { 692 i->di_uid = i->di_ouid; 693 i->di_gid = i->di_ogid; 694 } 695 696 if (inum % afs.fs_ipg == 0) 697 printf(" inode: mode nlink size" 698 " ctime.nsec flags blocks" 699 " generation uid gid\n"); 700 if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose)) 701 return; 702 printf("%8u: %6o %6d %20" PRIu64 " %10u.%09u %8x %10u %8x %10u %10u\n", 703 inum, i->di_mode, i->di_nlink, i->di_size, 704 i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks, 705 i->di_gen, i->di_uid, i->di_gid); 706 } 707 708 static void 709 print_ufs2_inode(int inum, int i_off, void *ibuf) 710 { 711 struct ufs2_dinode *i = ibuf; 712 713 i += i_off; 714 715 if (needswap) 716 ffs_dinode2_swap(i,i); 717 718 if (inum % afs.fs_ipg == 0) 719 printf(" inode: mode nlink size" 720 " ctime.nsec flags blocks" 721 " generation uid gid\n"); 722 723 if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose)) 724 return; 725 726 printf("%8u: %6o %6d %20" PRIu64 " %10" PRIu64 ".%09u %8x %10" PRIu64 " %8x %10u %10u\n", 727 inum, i->di_mode, i->di_nlink, i->di_size, 728 i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks, 729 i->di_gen, i->di_uid, i->di_gid); 730 } 731 732 static void 733 pbits(int offset, void *vp, int max) 734 { 735 int i; 736 char *p; 737 int count, j; 738 739 for (count = i = 0, p = vp; i < max; i++) 740 if (isset(p, i)) { 741 if (count) 742 printf(",%s", count % 6 ? " " : "\n\t"); 743 count++; 744 printf("%d", offset + i); 745 j = i; 746 while ((i+1)<max && isset(p, i+1)) 747 i++; 748 if (i != j) 749 printf("-%d", offset + i); 750 } 751 printf("\n"); 752 } 753 754 static int 755 print_journal(const char *name, int fd) 756 { 757 daddr_t off; 758 size_t count, blklen, bno, skip; 759 off_t boff, head, tail, len; 760 uint32_t generation; 761 762 if (afs.fs_journal_version != UFS_WAPBL_VERSION) 763 return 0; 764 765 generation = 0; 766 head = tail = 0; 767 768 switch (afs.fs_journal_location) { 769 case UFS_WAPBL_JOURNALLOC_END_PARTITION: 770 case UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM: 771 772 off = afs.fs_journallocs[0]; 773 count = afs.fs_journallocs[1]; 774 blklen = afs.fs_journallocs[2]; 775 776 for (bno=0; bno<count; bno += skip / blklen) { 777 778 skip = blklen; 779 780 boff = bno * blklen; 781 if (bno * blklen >= 2 * blklen && 782 ((head >= tail && (boff < tail || boff >= head)) || 783 (head < tail && (boff >= head && boff < tail)))) 784 continue; 785 786 printf("journal block %lu offset %lld\n", 787 (unsigned long)bno, (long long) boff); 788 789 if (lseek(fd, (off_t)(off*blklen) + boff, SEEK_SET) 790 == (off_t)-1) 791 return (1); 792 if (read(fd, &jbuf, blklen) != (ssize_t)blklen) { 793 warnx("%s: error reading journal", name); 794 return 1; 795 } 796 797 switch (awh.wc_type) { 798 case 0: 799 break; 800 case WAPBL_WC_HEADER: 801 print_journal_header(name); 802 if (awh.wc_generation > generation) { 803 head = awh.wc_head; 804 tail = awh.wc_tail; 805 } 806 generation = awh.wc_generation; 807 skip = awh.wc_len; 808 break; 809 default: 810 len = print_journal_entries(name, blklen); 811 skip = awh.wc_len; 812 if (len != (off_t)skip) 813 printf(" CORRUPTED RECORD\n"); 814 break; 815 } 816 817 if (blklen == 0) 818 break; 819 820 skip = (skip + blklen - 1) / blklen * blklen; 821 if (skip == 0) 822 break; 823 824 } 825 break; 826 } 827 828 return 0; 829 } 830 831 static const char * 832 wapbl_type_string(unsigned t) 833 { 834 static char buf[12]; 835 836 switch (t) { 837 case WAPBL_WC_BLOCKS: 838 return "blocks"; 839 case WAPBL_WC_REVOCATIONS: 840 return "revocations"; 841 case WAPBL_WC_INODES: 842 return "inodes"; 843 case WAPBL_WC_HEADER: 844 return "header"; 845 } 846 847 snprintf(buf,sizeof(buf),"%08x",t); 848 return buf; 849 } 850 851 static void 852 print_journal_header(const char *name) 853 { 854 printf(" type %s len %d version %u\n", 855 wapbl_type_string(awh.wc_type), awh.wc_len, 856 awh.wc_version); 857 printf(" checksum %08x generation %9u\n", 858 awh.wc_checksum, awh.wc_generation); 859 printf(" fsid %08x.%08x time %llu nsec %u\n", 860 awh.wc_fsid[0], awh.wc_fsid[1], 861 (unsigned long long)awh.wc_time, awh.wc_timensec); 862 printf(" log_bshift %10u fs_bshift %10u\n", 863 awh.wc_log_dev_bshift, awh.wc_fs_dev_bshift); 864 printf(" head %10lld tail %10lld\n", 865 (long long)awh.wc_head, (long long)awh.wc_tail); 866 printf(" circ_off %10lld circ_size %10lld\n", 867 (long long)awh.wc_circ_off, (long long)awh.wc_circ_size); 868 } 869 870 static off_t 871 print_journal_entries(const char *name, size_t blklen) 872 { 873 int i, n; 874 struct wapbl_wc_blocklist *wcb; 875 struct wapbl_wc_inodelist *wci; 876 off_t len = 0; 877 int ph; 878 879 printf(" type %s len %d", 880 wapbl_type_string(awn.wc_type), awn.wc_len); 881 882 switch (awn.wc_type) { 883 case WAPBL_WC_BLOCKS: 884 case WAPBL_WC_REVOCATIONS: 885 wcb = (struct wapbl_wc_blocklist *)&awn; 886 printf(" blkcount %u\n", wcb->wc_blkcount); 887 ph = (blklen - offsetof(struct wapbl_wc_blocklist, wc_blocks)) 888 / sizeof(wcb->wc_blocks[0]); 889 n = MIN(wcb->wc_blkcount, ph); 890 for (i=0; i<n; i++) { 891 if (ISOPT(opt_verbose)) { 892 printf(" %3d: daddr %14llu dlen %d\n", i, 893 (unsigned long long)wcb->wc_blocks[i].wc_daddr, 894 wcb->wc_blocks[i].wc_dlen); 895 } 896 len += wcb->wc_blocks[i].wc_dlen; 897 } 898 if (awn.wc_type == WAPBL_WC_BLOCKS) { 899 if (len % blklen) 900 len += blklen - len % blklen; 901 } else 902 len = 0; 903 break; 904 case WAPBL_WC_INODES: 905 wci = (struct wapbl_wc_inodelist *)&awn; 906 printf(" count %u clear %u\n", 907 wci->wc_inocnt, wci->wc_clear); 908 ph = (blklen - offsetof(struct wapbl_wc_inodelist, wc_inodes)) 909 / sizeof(wci->wc_inodes[0]); 910 n = MIN(wci->wc_inocnt, ph); 911 for (i=0; i<n; ++i) { 912 if (ISOPT(opt_verbose)) { 913 printf(" %3d: inumber %10u imode %08x\n", i, 914 wci->wc_inodes[i].wc_inumber, 915 wci->wc_inodes[i].wc_imode); 916 } 917 } 918 break; 919 default: 920 printf("\n"); 921 break; 922 } 923 924 return len + blklen; 925 } 926 927 static void 928 usage(void) 929 { 930 931 (void)fprintf(stderr, "usage: dumpfs [-acFijmsv] filesys | device [...]\n"); 932 exit(1); 933 } 934 935 static int 936 openpartition(const char *name, int flags, char *device, size_t devicelen) 937 { 938 char rawspec[MAXPATHLEN], xbuf[MAXPATHLEN], *p; 939 struct fstab *fs; 940 int fd, oerrno; 941 942 fs = getfsfile(name); 943 if (fs) { 944 const char *fsspec; 945 fsspec = getfsspecname(xbuf, sizeof(xbuf), fs->fs_spec); 946 if (fsspec == NULL) { 947 warn("%s", xbuf); 948 return -1; 949 } 950 if ((p = strrchr(fsspec, '/')) != NULL) { 951 snprintf(rawspec, sizeof(rawspec), "%.*s/r%s", 952 (int)(p - fsspec), fsspec, p + 1); 953 name = rawspec; 954 } else 955 name = fsspec; 956 } 957 fd = opendisk(name, flags, device, devicelen, 0); 958 if (fd == -1 && errno == ENOENT) { 959 oerrno = errno; 960 strlcpy(device, name, devicelen); 961 errno = oerrno; 962 } 963 return (fd); 964 } 965
Indexes created Wed Oct 15 03:09:54 GMT 2025