dumpfs.c revision 1.66
1 /* $NetBSD: dumpfs.c,v 1.66 2022/11/17 06:40:40 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 1.66 2022/11/17 06:40:40 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 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 = 5; 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 printf("cylgrp\t%s\tinodes\t%s\tsblock\t%s\tfslevel %d\n", 342 i < 1 ? "static" : "dynamic", 343 i < 2 ? "4.2/4.3BSD" : i < 5 ? "4.4BSD" : "FFSv2", 344 i < 4 ? "FFSv1" : "FFSv2", i); 345 printf("nbfree\t%lld\tndir\t%lld\tnifree\t%lld\tnffree\t%lld\n", 346 (long long)fs->fs_cstotal.cs_nbfree, 347 (long long)fs->fs_cstotal.cs_ndir, 348 (long long)fs->fs_cstotal.cs_nifree, 349 (long long)fs->fs_cstotal.cs_nffree); 350 if (printold) 351 printf("ncg\t%d\tncyl\t%d\tsize\t%lld\tblocks\t%lld\n", 352 fs->fs_ncg, fs->fs_old_ncyl, (long long)fs->fs_size, (long long)fs->fs_dsize); 353 else 354 printf("ncg\t%d\tsize\t%lld\tblocks\t%lld\n", 355 fs->fs_ncg, (long long)fs->fs_size, (long long)fs->fs_dsize); 356 printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n", 357 fs->fs_bsize, fs->fs_bshift, fs->fs_bmask); 358 printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n", 359 fs->fs_fsize, fs->fs_fshift, fs->fs_fmask); 360 printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n", 361 fs->fs_frag, fs->fs_fragshift, fs->fs_fsbtodb); 362 if (printold) 363 printf("cpg\t%d\t", fs->fs_old_cpg); 364 printf("bpg\t%d\tfpg\t%d\tipg\t%d\n", 365 fs->fs_fpg / fs->fs_frag, fs->fs_fpg, fs->fs_ipg); 366 printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n", 367 fs->fs_minfree, fs->fs_optim == FS_OPTSPACE ? "space" : "time", 368 fs->fs_maxcontig, fs->fs_maxbpg); 369 if (printold) { 370 printf("rotdelay %dms\theadswitch %dus\ttrackseek %dus\trps\t%d\n", 371 fs->fs_old_rotdelay, fs->fs_old_headswitch, 372 fs->fs_old_trkseek, fs->fs_old_rps); 373 printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n", 374 fs->fs_spare2, fs->fs_old_nsect, fs->fs_old_npsect, 375 fs->fs_old_spc); 376 } 377 printf("symlinklen %d\t", fs->fs_maxsymlinklen); 378 if (printold) 379 printf("trackskew %d\tinterleave %d\t", 380 fs->fs_old_trackskew, fs->fs_old_interleave); 381 printf("contigsumsize %d\n", fs->fs_contigsumsize); 382 printf("maxfilesize 0x%016llx\n", 383 (unsigned long long)fs->fs_maxfilesize); 384 if (printold) 385 printf("nindir\t%d\tinopb\t%d\tnspf\t%d\n", fs->fs_nindir, 386 fs->fs_inopb, fs->fs_old_nspf); 387 else 388 printf("nindir\t%d\tinopb\t%d\n", fs->fs_nindir, fs->fs_inopb); 389 if (!printold || (fs->fs_avgfilesize > 0) || (fs->fs_avgfpdir > 0)) 390 printf("avgfilesize %d\tavgfpdir %d\n", 391 fs->fs_avgfilesize, fs->fs_avgfpdir); 392 printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n", 393 fs->fs_sblkno, fs->fs_cblkno, fs->fs_iblkno, fs->fs_dblkno); 394 printf("sbsize\t%d\tcgsize\t%d", fs->fs_sbsize, fs->fs_cgsize); 395 if (printold) 396 printf("\toffset\t%d\tmask\t0x%08x", 397 fs->fs_old_cgoffset, fs->fs_old_cgmask); 398 printf("\ncsaddr\t%lld\tcssize\t%d", 399 (long long)fs->fs_csaddr, fs->fs_cssize); 400 if (printold) 401 printf("\tshift\t%d\tmask\t0x%08x", 402 fs->fs_old_csshift, fs->fs_old_csmask); 403 printf("\ncgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t0x%02x\n", 404 fs->fs_cgrotor, fs->fs_fmod, fs->fs_ronly, fs->fs_clean); 405 printf("wapbl version 0x%x\tlocation %u\tflags 0x%x\n", 406 fs->fs_journal_version, fs->fs_journal_location, 407 fs->fs_journal_flags); 408 printf("wapbl loc0 %" PRIu64 "\tloc1 %" PRIu64, 409 fs->fs_journallocs[0], fs->fs_journallocs[1]); 410 printf("\tloc2 %" PRIu64 "\tloc3 %" PRIu64 "\n", 411 fs->fs_journallocs[2], fs->fs_journallocs[3]); 412 printf("usrquota %" PRIu64 "\tgrpquota %" PRIu64 "\n", 413 fs->fs_quotafile[USRQUOTA], fs->fs_quotafile[GRPQUOTA]); 414 printf("flags\t"); 415 if (fs->fs_flags == 0) 416 printf("none"); 417 if (fs->fs_flags & FS_UNCLEAN) 418 printf("unclean "); 419 if (fs->fs_flags & FS_DOSOFTDEP) 420 printf("soft-updates "); 421 if (fs->fs_flags & FS_NEEDSFSCK) 422 printf("needs fsck run "); 423 if (fs->fs_flags & FS_SUJ) 424 printf("journaled soft-updates "); 425 if (fs->fs_flags & FS_POSIX1EACLS) 426 printf("posix1e acls "); 427 if (fs->fs_flags & FS_NFS4ACLS) 428 printf("nfs4 acls "); 429 if (fs->fs_flags & FS_MULTILABEL) 430 printf("multilabel "); 431 if (fs->fs_flags & FS_GJOURNAL) 432 printf("gjournal "); 433 if (fs->fs_flags & FS_FLAGS_UPDATED) 434 printf("fs_flags expanded "); 435 if (fs->fs_flags & FS_DOWAPBL) 436 printf("wapbl "); 437 if (fs->fs_flags & FS_DOQUOTA2) 438 printf("quotas "); 439 if (fs->fs_flags & FS_TRIM) 440 printf("trim "); 441 fsflags = fs->fs_flags & ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK | 442 FS_SUJ | FS_POSIX1EACLS | FS_MULTILABEL | FS_GJOURNAL | 443 FS_NFS4ACLS | FS_FLAGS_UPDATED | FS_DOWAPBL | 444 FS_DOQUOTA2 | FS_TRIM); 445 #ifdef FS_INDEXDIRS 446 if (fs->fs_flags & FS_INDEXDIRS) 447 printf("indexed directories "); 448 fsflags &= ~FS_INDEXDIRS 449 #endif 450 if (fsflags != 0) 451 printf("unknown flags (%#x)", fsflags); 452 printf("\nfsmnt\t%s\n", fs->fs_fsmnt); 453 if (!printold) { 454 printf("volname\t%s\tswuid\t%ju\n", 455 fs->fs_volname, (uintmax_t)fs->fs_swuid); 456 return 0; 457 } 458 459 if (fs->fs_old_cpc != 0) 460 printf("blocks available in each of %d rotational " 461 "positions\n", fs->fs_old_nrpos); 462 else 463 printf("(no rotational position table)\n\n"); 464 465 if (!ISOPT(opt_verbose)) { 466 return 0; 467 } 468 469 for (int c = 0; c < fs->fs_old_cpc; c++) { 470 printf("cylinder number %d:", c); 471 for (i = 0; i < fs->fs_old_nrpos; i++) { 472 if (old_fs_postbl(&afs, c, opostbl)[i] == -1) 473 continue; 474 printf("\n position %d:\t", i); 475 for (int j = old_fs_postbl(&afs, c, opostbl)[i], k = 1; 476 ; j += old_fs_rotbl(&afs)[j], k++) { 477 printf("%5d", j); 478 if (k % 12 == 0) 479 printf("\n\t\t"); 480 if (old_fs_rotbl(&afs)[j] == 0) 481 break; 482 } 483 } 484 printf("\n"); 485 } 486 487 return 0; 488 } 489 490 static int 491 print_cgsum(const char *name, int fd) 492 { 493 struct csum *ccsp; 494 int i, j, size; 495 496 afs.fs_csp = calloc(1, afs.fs_cssize); 497 for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) { 498 size = afs.fs_cssize - i < afs.fs_bsize ? 499 afs.fs_cssize - i : afs.fs_bsize; 500 ccsp = (struct csum *)((char *)afs.fs_csp + i); 501 if (lseek(fd, 502 (off_t)(FFS_FSBTODB(&afs, (afs.fs_csaddr + j * afs.fs_frag))) * 503 dev_bsize, SEEK_SET) == (off_t)-1) 504 return 1; 505 if (read(fd, ccsp, size) != size) 506 return 1; 507 if (needswap) 508 ffs_csum_swap(ccsp, ccsp, size); 509 } 510 511 printf("cs[].cs_(nbfree,ndir,nifree,nffree):\n\t"); 512 for (i = 0; i < afs.fs_ncg; i++) { 513 struct csum *cs = &afs.fs_cs(&afs, i); 514 if (i && i % 4 == 0) 515 printf("\n\t"); 516 printf("(%d,%d,%d,%d) ", 517 cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree); 518 } 519 printf("\n"); 520 if (printold && (afs.fs_old_ncyl % afs.fs_old_cpg)) { 521 printf("cylinders in last group %d\n", 522 i = afs.fs_old_ncyl % afs.fs_old_cpg); 523 printf("blocks in last group %d\n", 524 i * afs.fs_old_spc / (afs.fs_old_nspf << afs.fs_fragshift)); 525 } 526 free(afs.fs_csp); 527 afs.fs_csp = NULL; 528 529 return 0; 530 } 531 532 static int 533 print_alt_super(const char *name, int fd) 534 { 535 union fsun alt; 536 int i; 537 off_t loc; 538 uint16_t alt_opostblsave[32*8]; 539 int save_printold; 540 541 for (i = 0; i < afs.fs_ncg; i++) { 542 loc = (off_t)(FFS_FSBTODB(&afs, cgsblock(&afs, i))) * dev_bsize; 543 printf("\nalternate %d\n", i); 544 if (pread(fd, &alt, sizeof alt, loc) != sizeof alt) { 545 warnx("%s: error reading alt %d", name, i); 546 return (1); 547 } 548 save_printold = printold; 549 fix_superblock(&alt.fs, alt_opostblsave); 550 if (print_superblock(&alt.fs, alt_opostblsave, name, fd, loc)) { 551 printold = save_printold; 552 return 1; 553 } 554 printold = save_printold; 555 } 556 return 0; 557 } 558 559 static int 560 print_cginfo(const char *name, int fd) 561 { 562 int i; 563 564 printf("\n"); 565 for (i = 0; i < afs.fs_ncg; i++) { 566 printf("\n"); 567 if (dumpcg(name, fd, i)) 568 return 1; 569 if (ISOPT(opt_inodes) && print_inodes(name, fd, i, 1)) 570 return 1; 571 } 572 return 0; 573 } 574 575 static int 576 print_inodes(const char *name, int fd, int c, int n) 577 { 578 void *ino_buf = malloc(afs.fs_bsize); 579 void (*print_inode)(int, int, void *); 580 int i, inum; 581 582 if (ino_buf == 0) 583 return 1; 584 585 print_inode = is_ufs2 ? print_ufs2_inode : print_ufs1_inode; 586 587 for (inum = c * afs.fs_ipg ; inum < (c+n) * afs.fs_ipg; inum += afs.fs_inopb) { 588 if (pread(fd, ino_buf, afs.fs_bsize, 589 ino_to_fsba(&afs, inum) * afs.fs_fsize) != afs.fs_bsize) { 590 free(ino_buf); 591 return 1; 592 } 593 for (i = 0; i < afs.fs_inopb; i++) 594 print_inode(inum + i, i, ino_buf); 595 } 596 597 free(ino_buf); 598 return 0; 599 } 600 601 static int 602 dumpcg(const char *name, int fd, int c) 603 { 604 off_t cur; 605 int i, j; 606 time_t t; 607 608 printf("cg %d:\n", c); 609 if ((cur = lseek(fd, (off_t)(FFS_FSBTODB(&afs, cgtod(&afs, c))) * dev_bsize, 610 SEEK_SET)) == (off_t)-1) 611 return (1); 612 if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) { 613 warnx("%s: error reading cg", name); 614 return (1); 615 } 616 if (needswap) 617 ffs_cg_swap(&acg, &acg, &afs); 618 if (printold) 619 t = acg.cg_old_time; 620 else 621 t = acg.cg_time; 622 printf("magic\t%x\ttell\t%llx\ttime\t%s", 623 afs.fs_old_postblformat == FS_42POSTBLFMT ? 624 ((struct ocg *)&acg)->cg_magic : acg.cg_magic, 625 (long long)cur, ctime(&t)); 626 if (printold) 627 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n", 628 acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk, 629 acg.cg_ndblk); 630 else 631 printf("cgx\t%d\tniblk\t%d\tndblk\t%d\n", 632 acg.cg_cgx, acg.cg_niblk, acg.cg_ndblk); 633 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n", 634 acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir, 635 acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree); 636 printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum", 637 acg.cg_rotor, acg.cg_irotor, acg.cg_frotor); 638 for (i = 1, j = 0; i < afs.fs_frag; i++) { 639 printf("\t%d", acg.cg_frsum[i]); 640 j += i * acg.cg_frsum[i]; 641 } 642 printf("\nsum of frsum: %d", j); 643 if (afs.fs_contigsumsize > 0) { 644 for (i = 1; i < afs.fs_contigsumsize; i++) { 645 if ((i - 1) % 8 == 0) 646 printf("\nclusters %d-%d:", i, 647 afs.fs_contigsumsize - 1 < i + 7 ? 648 afs.fs_contigsumsize - 1 : i + 7); 649 printf("\t%d", cg_clustersum(&acg, 0)[i]); 650 } 651 printf("\nclusters size %d and over: %d\n", 652 afs.fs_contigsumsize, 653 cg_clustersum(&acg, 0)[afs.fs_contigsumsize]); 654 printf("clusters free:\t"); 655 pbits(0, cg_clustersfree(&acg, 0), acg.cg_nclusterblks); 656 } else 657 printf("\n"); 658 printf("iused:\t"); 659 pbits(0 * c * afs.fs_ipg, cg_inosused(&acg, 0), afs.fs_ipg); 660 printf("free:\t"); 661 pbits(0, cg_blksfree(&acg, 0), afs.fs_fpg); 662 if (printold && ISOPT(opt_verbose)) { 663 printf("b:\n"); 664 for (i = 0; i < afs.fs_old_cpg; i++) { 665 if (old_cg_blktot(&acg, 0)[i] == 0) 666 continue; 667 printf(" c%d:\t(%d)\t", i, old_cg_blktot(&acg, 0)[i]); 668 for (j = 0; j < afs.fs_old_nrpos; j++) { 669 if (afs.fs_old_cpc > 0 && 670 old_fs_postbl(&afs, i % afs.fs_old_cpc, opostblsave)[j] == -1) 671 continue; 672 printf(" %d", old_cg_blks(&afs, &acg, i, 0)[j]); 673 } 674 printf("\n"); 675 } 676 } 677 return (0); 678 } 679 680 static void 681 print_ufs1_inode(int inum, int i_off, void *ibuf) 682 { 683 struct ufs1_dinode *i = ibuf; 684 685 i += i_off; 686 687 if (needswap) 688 ffs_dinode1_swap(i,i); 689 690 if (afs.fs_old_inodefmt < FS_44INODEFMT) { 691 i->di_uid = i->di_ouid; 692 i->di_gid = i->di_ogid; 693 } 694 695 if (inum % afs.fs_ipg == 0) 696 printf(" inode: mode nlink size" 697 " ctime.nsec flags blocks" 698 " generation uid gid\n"); 699 if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose)) 700 return; 701 printf("%8u: %6o %6d %20" PRIu64 " %10u.%09u %8x %10u %8x %10u %10u\n", 702 inum, i->di_mode, i->di_nlink, i->di_size, 703 i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks, 704 i->di_gen, i->di_uid, i->di_gid); 705 } 706 707 static void 708 print_ufs2_inode(int inum, int i_off, void *ibuf) 709 { 710 struct ufs2_dinode *i = ibuf; 711 712 i += i_off; 713 714 if (needswap) 715 ffs_dinode2_swap(i,i); 716 717 if (inum % afs.fs_ipg == 0) 718 printf(" inode: mode nlink size" 719 " ctime.nsec flags blocks" 720 " generation uid gid\n"); 721 722 if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose)) 723 return; 724 725 printf("%8u: %6o %6d %20" PRIu64 " %10" PRIu64 ".%09u %8x %10" PRIu64 " %8x %10u %10u\n", 726 inum, i->di_mode, i->di_nlink, i->di_size, 727 i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks, 728 i->di_gen, i->di_uid, i->di_gid); 729 } 730 731 static void 732 pbits(int offset, void *vp, int max) 733 { 734 int i; 735 char *p; 736 int count, j; 737 738 for (count = i = 0, p = vp; i < max; i++) 739 if (isset(p, i)) { 740 if (count) 741 printf(",%s", count % 6 ? " " : "\n\t"); 742 count++; 743 printf("%d", offset + i); 744 j = i; 745 while ((i+1)<max && isset(p, i+1)) 746 i++; 747 if (i != j) 748 printf("-%d", offset + i); 749 } 750 printf("\n"); 751 } 752 753 static int 754 print_journal(const char *name, int fd) 755 { 756 daddr_t off; 757 size_t count, blklen, bno, skip; 758 off_t boff, head, tail, len; 759 uint32_t generation; 760 761 if (afs.fs_journal_version != UFS_WAPBL_VERSION) 762 return 0; 763 764 generation = 0; 765 head = tail = 0; 766 767 switch (afs.fs_journal_location) { 768 case UFS_WAPBL_JOURNALLOC_END_PARTITION: 769 case UFS_WAPBL_JOURNALLOC_IN_FILESYSTEM: 770 771 off = afs.fs_journallocs[0]; 772 count = afs.fs_journallocs[1]; 773 blklen = afs.fs_journallocs[2]; 774 775 for (bno=0; bno<count; bno += skip / blklen) { 776 777 skip = blklen; 778 779 boff = bno * blklen; 780 if (bno * blklen >= 2 * blklen && 781 ((head >= tail && (boff < tail || boff >= head)) || 782 (head < tail && (boff >= head && boff < tail)))) 783 continue; 784 785 printf("journal block %lu offset %lld\n", 786 (unsigned long)bno, (long long) boff); 787 788 if (lseek(fd, (off_t)(off*blklen) + boff, SEEK_SET) 789 == (off_t)-1) 790 return (1); 791 if (read(fd, &jbuf, blklen) != (ssize_t)blklen) { 792 warnx("%s: error reading journal", name); 793 return 1; 794 } 795 796 switch (awh.wc_type) { 797 case 0: 798 break; 799 case WAPBL_WC_HEADER: 800 print_journal_header(name); 801 if (awh.wc_generation > generation) { 802 head = awh.wc_head; 803 tail = awh.wc_tail; 804 } 805 generation = awh.wc_generation; 806 skip = awh.wc_len; 807 break; 808 default: 809 len = print_journal_entries(name, blklen); 810 skip = awh.wc_len; 811 if (len != (off_t)skip) 812 printf(" CORRUPTED RECORD\n"); 813 break; 814 } 815 816 if (blklen == 0) 817 break; 818 819 skip = (skip + blklen - 1) / blklen * blklen; 820 if (skip == 0) 821 break; 822 823 } 824 break; 825 } 826 827 return 0; 828 } 829 830 static const char * 831 wapbl_type_string(unsigned t) 832 { 833 static char buf[12]; 834 835 switch (t) { 836 case WAPBL_WC_BLOCKS: 837 return "blocks"; 838 case WAPBL_WC_REVOCATIONS: 839 return "revocations"; 840 case WAPBL_WC_INODES: 841 return "inodes"; 842 case WAPBL_WC_HEADER: 843 return "header"; 844 } 845 846 snprintf(buf,sizeof(buf),"%08x",t); 847 return buf; 848 } 849 850 static void 851 print_journal_header(const char *name) 852 { 853 printf(" type %s len %d version %u\n", 854 wapbl_type_string(awh.wc_type), awh.wc_len, 855 awh.wc_version); 856 printf(" checksum %08x generation %9u\n", 857 awh.wc_checksum, awh.wc_generation); 858 printf(" fsid %08x.%08x time %llu nsec %u\n", 859 awh.wc_fsid[0], awh.wc_fsid[1], 860 (unsigned long long)awh.wc_time, awh.wc_timensec); 861 printf(" log_bshift %10u fs_bshift %10u\n", 862 awh.wc_log_dev_bshift, awh.wc_fs_dev_bshift); 863 printf(" head %10lld tail %10lld\n", 864 (long long)awh.wc_head, (long long)awh.wc_tail); 865 printf(" circ_off %10lld circ_size %10lld\n", 866 (long long)awh.wc_circ_off, (long long)awh.wc_circ_size); 867 } 868 869 static off_t 870 print_journal_entries(const char *name, size_t blklen) 871 { 872 int i, n; 873 struct wapbl_wc_blocklist *wcb; 874 struct wapbl_wc_inodelist *wci; 875 off_t len = 0; 876 int ph; 877 878 printf(" type %s len %d", 879 wapbl_type_string(awn.wc_type), awn.wc_len); 880 881 switch (awn.wc_type) { 882 case WAPBL_WC_BLOCKS: 883 case WAPBL_WC_REVOCATIONS: 884 wcb = (struct wapbl_wc_blocklist *)&awn; 885 printf(" blkcount %u\n", wcb->wc_blkcount); 886 ph = (blklen - offsetof(struct wapbl_wc_blocklist, wc_blocks)) 887 / sizeof(wcb->wc_blocks[0]); 888 n = MIN(wcb->wc_blkcount, ph); 889 for (i=0; i<n; i++) { 890 if (ISOPT(opt_verbose)) { 891 printf(" %3d: daddr %14llu dlen %d\n", i, 892 (unsigned long long)wcb->wc_blocks[i].wc_daddr, 893 wcb->wc_blocks[i].wc_dlen); 894 } 895 len += wcb->wc_blocks[i].wc_dlen; 896 } 897 if (awn.wc_type == WAPBL_WC_BLOCKS) { 898 if (len % blklen) 899 len += blklen - len % blklen; 900 } else 901 len = 0; 902 break; 903 case WAPBL_WC_INODES: 904 wci = (struct wapbl_wc_inodelist *)&awn; 905 printf(" count %u clear %u\n", 906 wci->wc_inocnt, wci->wc_clear); 907 ph = (blklen - offsetof(struct wapbl_wc_inodelist, wc_inodes)) 908 / sizeof(wci->wc_inodes[0]); 909 n = MIN(wci->wc_inocnt, ph); 910 for (i=0; i<n; ++i) { 911 if (ISOPT(opt_verbose)) { 912 printf(" %3d: inumber %10u imode %08x\n", i, 913 wci->wc_inodes[i].wc_inumber, 914 wci->wc_inodes[i].wc_imode); 915 } 916 } 917 break; 918 default: 919 printf("\n"); 920 break; 921 } 922 923 return len + blklen; 924 } 925 926 static void 927 usage(void) 928 { 929 930 (void)fprintf(stderr, "usage: dumpfs [-acFijmsv] filesys | device [...]\n"); 931 exit(1); 932 } 933 934 static int 935 openpartition(const char *name, int flags, char *device, size_t devicelen) 936 { 937 char rawspec[MAXPATHLEN], xbuf[MAXPATHLEN], *p; 938 struct fstab *fs; 939 int fd, oerrno; 940 941 fs = getfsfile(name); 942 if (fs) { 943 const char *fsspec; 944 fsspec = getfsspecname(xbuf, sizeof(xbuf), fs->fs_spec); 945 if (fsspec == NULL) { 946 warn("%s", xbuf); 947 return -1; 948 } 949 if ((p = strrchr(fsspec, '/')) != NULL) { 950 snprintf(rawspec, sizeof(rawspec), "%.*s/r%s", 951 (int)(p - fsspec), fsspec, p + 1); 952 name = rawspec; 953 } else 954 name = fsspec; 955 } 956 fd = opendisk(name, flags, device, devicelen, 0); 957 if (fd == -1 && errno == ENOENT) { 958 oerrno = errno; 959 strlcpy(device, name, devicelen); 960 errno = oerrno; 961 } 962 return (fd); 963 } 964
Indexes created Wed Sep 24 05:09:52 GMT 2025