sbin/dumpfs/dumpfs.c

   1 /*
   2  * Copyright (c) 2002 Networks Associates Technology, Inc.
   3  * All rights reserved.
   4  *
   5  * This software was developed for the FreeBSD Project by Marshall
   6  * Kirk McKusick and Network Associates Laboratories, the Security
   7  * Research Division of Network Associates, Inc. under DARPA/SPAWAR
   8  * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
   9  * research program.
  10  *
  11  * Copyright (c) 1983, 1992, 1993
  12  *      The Regents of the University of California.  All rights reserved.
  13  *
  14  * Redistribution and use in source and binary forms, with or without
  15  * modification, are permitted provided that the following conditions
  16  * are met:
  17  * 1. Redistributions of source code must retain the above copyright
  18  *    notice, this list of conditions and the following disclaimer.
  19  * 2. Redistributions in binary form must reproduce the above copyright
  20  *    notice, this list of conditions and the following disclaimer in the
  21  *    documentation and/or other materials provided with the distribution.
  22  * 4. Neither the name of the University nor the names of its contributors
  23  *    may be used to endorse or promote products derived from this software
  24  *    without specific prior written permission.
  25  *
  26  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  27  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  28  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  29  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  30  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  31  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  32  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  33  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  34  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  35  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  36  * SUCH DAMAGE.
  37  */
  38
  39 #ifndef lint
  40 static const char copyright[] =
  41 "@(#) Copyright (c) 1983, 1992, 1993\n\
  42         The Regents of the University of California.  All rights reserved.\n";
  43 #endif /* not lint */
  44
  45 #ifndef lint
  46 #if 0
  47 static char sccsid[] = "@(#)dumpfs.c    8.5 (Berkeley) 4/29/95";
  48 #endif
  49 static const char rcsid[] =
  50   "$FreeBSD$";
  51 #endif /* not lint */
  52
  53 #include <sys/param.h>
  54 #include <sys/time.h>
  55 #include <sys/disklabel.h>
  56
  57 #include <ufs/ufs/dinode.h>
  58 #include <ufs/ffs/fs.h>
  59
  60 #include <err.h>
  61 #include <errno.h>
  62 #include <fcntl.h>
  63 #include <fstab.h>
  64 #include <libufs.h>
  65 #include <stdint.h>
  66 #include <stdio.h>
  67 #include <stdlib.h>
  68 #include <unistd.h>
  69
  70 #define afs     disk.d_fs
  71 #define acg     disk.d_cg
  72
  73 struct uufsd disk;
  74
  75 int     dumpfs(const char *);
  76 int     dumpcg(void);
  77 int     marshal(const char *);
  78 void    pbits(void *, int);
  79 void    ufserr(const char *);
  80 void    usage(void) __dead2;
  81
  82 int
  83 main(int argc, char *argv[])
  84 {
  85         const char *name;
  86         int ch, domarshal, eval;
  87
  88         domarshal = eval = 0;
  89
  90         while ((ch = getopt(argc, argv, "m")) != -1) {
  91                 switch (ch) {
  92                 case 'm':
  93                         domarshal = 1;
  94                         break;
  95                 case '?':
  96                 default:
  97                         usage();
  98                 }
  99         }
 100         argc -= optind;
 101         argv += optind;
 102
 103         if (argc < 1)
 104                 usage();
 105
 106         while ((name = *argv++) != NULL) {
 107                 if (ufs_disk_fillout(&disk, name) == -1) {
 108                         ufserr(name);
 109                         eval |= 1;
 110                         continue;
 111                 }
 112                 if (domarshal)
 113                         eval |= marshal(name);
 114                 else
 115                         eval |= dumpfs(name);
 116                 ufs_disk_close(&disk);
 117         }
 118         exit(eval);
 119 }
 120
 121 int
 122 dumpfs(const char *name)
 123 {
 124         time_t fstime;
 125         int64_t fssize;
 126         int32_t fsflags;
 127         int i;
 128
 129         switch (disk.d_ufs) {
 130         case 2:
 131                 fssize = afs.fs_size;
 132                 fstime = afs.fs_time;
 133                 printf("magic\t%x (UFS2)\ttime\t%s",
 134                     afs.fs_magic, ctime(&fstime));
 135                 printf("superblock location\t%jd\tid\t[ %x %x ]\n",
 136                     (intmax_t)afs.fs_sblockloc, afs.fs_id[0], afs.fs_id[1]);
 137                 printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
 138                     afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
 139                 break;
 140         case 1:
 141                 fssize = afs.fs_old_size;
 142                 fstime = afs.fs_old_time;
 143                 printf("magic\t%x (UFS1)\ttime\t%s",
 144                     afs.fs_magic, ctime(&fstime));
 145                 printf("id\t[ %x %x ]\n", afs.fs_id[0], afs.fs_id[1]);
 146                 printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
 147                     afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
 148                 break;
 149         default:
 150                 goto err;
 151         }
 152         printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
 153             afs.fs_bsize, afs.fs_bshift, afs.fs_bmask);
 154         printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
 155             afs.fs_fsize, afs.fs_fshift, afs.fs_fmask);
 156         printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
 157             afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb);
 158         printf("minfree\t%d%%\toptim\t%s\tsymlinklen %d\n",
 159             afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time",
 160             afs.fs_maxsymlinklen);
 161         switch (disk.d_ufs) {
 162         case 2:
 163                 printf("%s %d\tmaxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
 164                     "maxbsize", afs.fs_maxbsize, afs.fs_maxbpg,
 165                     afs.fs_maxcontig, afs.fs_contigsumsize);
 166                 printf("nbfree\t%jd\tndir\t%jd\tnifree\t%jd\tnffree\t%jd\n",
 167                     (intmax_t)afs.fs_cstotal.cs_nbfree,
 168                     (intmax_t)afs.fs_cstotal.cs_ndir,
 169                     (intmax_t)afs.fs_cstotal.cs_nifree,
 170                     (intmax_t)afs.fs_cstotal.cs_nffree);
 171                 printf("bpg\t%d\tfpg\t%d\tipg\t%d\tunrefs\t%jd\n",
 172                     afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg,
 173                     (intmax_t)afs.fs_unrefs);
 174                 printf("nindir\t%d\tinopb\t%d\tmaxfilesize\t%ju\n",
 175                     afs.fs_nindir, afs.fs_inopb,
 176                     (uintmax_t)afs.fs_maxfilesize);
 177                 printf("sbsize\t%d\tcgsize\t%d\tcsaddr\t%jd\tcssize\t%d\n",
 178                     afs.fs_sbsize, afs.fs_cgsize, (intmax_t)afs.fs_csaddr,
 179                     afs.fs_cssize);
 180                 break;
 181         case 1:
 182                 printf("maxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
 183                     afs.fs_maxbpg, afs.fs_maxcontig, afs.fs_contigsumsize);
 184                 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
 185                     afs.fs_old_cstotal.cs_nbfree, afs.fs_old_cstotal.cs_ndir,
 186                     afs.fs_old_cstotal.cs_nifree, afs.fs_old_cstotal.cs_nffree);
 187                 printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n",
 188                     afs.fs_old_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg,
 189                     afs.fs_ipg);
 190                 printf("nindir\t%d\tinopb\t%d\tnspf\t%d\tmaxfilesize\t%ju\n",
 191                     afs.fs_nindir, afs.fs_inopb, afs.fs_old_nspf,
 192                     (uintmax_t)afs.fs_maxfilesize);
 193                 printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n",
 194                     afs.fs_sbsize, afs.fs_cgsize, afs.fs_old_cgoffset,
 195                     afs.fs_old_cgmask);
 196                 printf("csaddr\t%d\tcssize\t%d\n",
 197                     afs.fs_old_csaddr, afs.fs_cssize);
 198                 printf("rotdelay %dms\trps\t%d\ttrackskew %d\tinterleave %d\n",
 199                     afs.fs_old_rotdelay, afs.fs_old_rps, afs.fs_old_trackskew,
 200                     afs.fs_old_interleave);
 201                 printf("nsect\t%d\tnpsect\t%d\tspc\t%d\n",
 202                     afs.fs_old_nsect, afs.fs_old_npsect, afs.fs_old_spc);
 203                 break;
 204         default:
 205                 goto err;
 206         }
 207         printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
 208             afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno);
 209         printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t%d\n",
 210             afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean);
 211         printf("avgfpdir %d\tavgfilesize %d\n",
 212             afs.fs_avgfpdir, afs.fs_avgfilesize);
 213         printf("flags\t");
 214         if (afs.fs_old_flags & FS_FLAGS_UPDATED)
 215                 fsflags = afs.fs_flags;
 216         else
 217                 fsflags = afs.fs_old_flags;
 218         if (fsflags == 0)
 219                 printf("none");
 220         if (fsflags & FS_UNCLEAN)
 221                 printf("unclean ");
 222         if (fsflags & FS_DOSOFTDEP)
 223                 printf("soft-updates ");
 224         if (fsflags & FS_NEEDSFSCK)
 225                 printf("needs fsck run ");
 226         if (fsflags & FS_INDEXDIRS)
 227                 printf("indexed directories ");
 228         if (fsflags & FS_ACLS)
 229                 printf("acls ");
 230         if (fsflags & FS_MULTILABEL)
 231                 printf("multilabel ");
 232         if (fsflags & FS_GJOURNAL)
 233                 printf("gjournal ");
 234         if (fsflags & FS_FLAGS_UPDATED)
 235                 printf("fs_flags expanded ");
 236         fsflags &= ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK | FS_INDEXDIRS |
 237                      FS_ACLS | FS_MULTILABEL | FS_GJOURNAL | FS_FLAGS_UPDATED);
 238         if (fsflags != 0)
 239                 printf("unknown flags (%#x)", fsflags);
 240         putchar('\n');
 241         printf("fsmnt\t%s\n", afs.fs_fsmnt);
 242         printf("volname\t%s\tswuid\t%ju\n",
 243                 afs.fs_volname, (uintmax_t)afs.fs_swuid);
 244         printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
 245         afs.fs_csp = calloc(1, afs.fs_cssize);
 246         if (bread(&disk, fsbtodb(&afs, afs.fs_csaddr), afs.fs_csp, afs.fs_cssize) == -1)
 247                 goto err;
 248         for (i = 0; i < afs.fs_ncg; i++) {
 249                 struct csum *cs = &afs.fs_cs(&afs, i);
 250                 if (i && i % 4 == 0)
 251                         printf("\n\t");
 252                 printf("(%d,%d,%d,%d) ",
 253                     cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree);
 254         }
 255         printf("\n");
 256         if (fssize % afs.fs_fpg) {
 257                 if (disk.d_ufs == 1)
 258                         printf("cylinders in last group %d\n",
 259                             howmany(afs.fs_old_size % afs.fs_fpg,
 260                             afs.fs_old_spc / afs.fs_old_nspf));
 261                 printf("blocks in last group %ld\n\n",
 262                     (long)((fssize % afs.fs_fpg) / afs.fs_frag));
 263         }
 264         while ((i = cgread(&disk)) != 0) {
 265                 if (i == -1 || dumpcg())
 266                         goto err;
 267         }
 268         return (0);
 269
 270 err:    ufserr(name);
 271         return (1);
 272 }
 273
 274 int
 275 dumpcg(void)
 276 {
 277         time_t cgtime;
 278         off_t cur;
 279         int i, j;
 280
 281         printf("\ncg %d:\n", disk.d_lcg);
 282         cur = fsbtodb(&afs, cgtod(&afs, disk.d_lcg)) * disk.d_bsize;
 283         switch (disk.d_ufs) {
 284         case 2:
 285                 cgtime = acg.cg_time;
 286                 printf("magic\t%x\ttell\t%jx\ttime\t%s",
 287                     acg.cg_magic, (intmax_t)cur, ctime(&cgtime));
 288                 printf("cgx\t%d\tndblk\t%d\tniblk\t%d\tinitiblk %d\tunrefs %d\n",
 289                     acg.cg_cgx, acg.cg_ndblk, acg.cg_niblk, acg.cg_initediblk,
 290                     acg.cg_unrefs);
 291                 break;
 292         case 1:
 293                 cgtime = acg.cg_old_time;
 294                 printf("magic\t%x\ttell\t%jx\ttime\t%s",
 295                     acg.cg_magic, (intmax_t)cur, ctime(&cgtime));
 296                 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
 297                     acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk,
 298                     acg.cg_ndblk);
 299                 break;
 300         default:
 301                 break;
 302         }
 303         printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
 304             acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir,
 305             acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree);
 306         printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum",
 307             acg.cg_rotor, acg.cg_irotor, acg.cg_frotor);
 308         for (i = 1, j = 0; i < afs.fs_frag; i++) {
 309                 printf("\t%d", acg.cg_frsum[i]);
 310                 j += i * acg.cg_frsum[i];
 311         }
 312         printf("\nsum of frsum: %d", j);
 313         if (afs.fs_contigsumsize > 0) {
 314                 for (i = 1; i < afs.fs_contigsumsize; i++) {
 315                         if ((i - 1) % 8 == 0)
 316                                 printf("\nclusters %d-%d:", i,
 317                                     afs.fs_contigsumsize - 1 < i + 7 ?
 318                                     afs.fs_contigsumsize - 1 : i + 7);
 319                         printf("\t%d", cg_clustersum(&acg)[i]);
 320                 }
 321                 printf("\nclusters size %d and over: %d\n",
 322                     afs.fs_contigsumsize,
 323                     cg_clustersum(&acg)[afs.fs_contigsumsize]);
 324                 printf("clusters free:\t");
 325                 pbits(cg_clustersfree(&acg), acg.cg_nclusterblks);
 326         } else
 327                 printf("\n");
 328         printf("inodes used:\t");
 329         pbits(cg_inosused(&acg), afs.fs_ipg);
 330         printf("blks free:\t");
 331         pbits(cg_blksfree(&acg), afs.fs_fpg);
 332         return (0);
 333 }
 334
 335 int
 336 marshal(const char *name)
 337 {
 338         struct fs *fs;
 339
 340         fs = &disk.d_fs;
 341
 342         printf("# newfs command for %s (%s)\n", name, disk.d_name);
 343         printf("newfs ");
 344         if (fs->fs_volname[0] != '\0')
 345                 printf("-L %s ", fs->fs_volname);
 346         printf("-O %d ", disk.d_ufs);
 347         if (fs->fs_flags & FS_DOSOFTDEP)
 348                 printf("-U ");
 349         printf("-a %d ", fs->fs_maxcontig);
 350         printf("-b %d ", fs->fs_bsize);
 351         /* -c is dumb */
 352         printf("-d %d ", fs->fs_maxbsize);
 353         printf("-e %d ", fs->fs_maxbpg);
 354         printf("-f %d ", fs->fs_fsize);
 355         printf("-g %d ", fs->fs_avgfilesize);
 356         printf("-h %d ", fs->fs_avgfpdir);
 357         /* -i is dumb */
 358         /* -j..l unimplemented */
 359         printf("-m %d ", fs->fs_minfree);
 360         /* -n unimplemented */
 361         printf("-o ");
 362         switch (fs->fs_optim) {
 363         case FS_OPTSPACE:
 364                 printf("space ");
 365                 break;
 366         case FS_OPTTIME:
 367                 printf("time ");
 368                 break;
 369         default:
 370                 printf("unknown ");
 371                 break;
 372         }
 373         /* -p..r unimplemented */
 374         printf("-s %jd ", (intmax_t)fs->fs_size);
 375         printf("%s ", disk.d_name);
 376         printf("\n");
 377
 378         return 0;
 379 }
 380
 381 void
 382 pbits(void *vp, int max)
 383 {
 384         int i;
 385         char *p;
 386         int count, j;
 387
 388         for (count = i = 0, p = vp; i < max; i++)
 389                 if (isset(p, i)) {
 390                         if (count)
 391                                 printf(",%s", count % 6 ? " " : "\n\t");
 392                         count++;
 393                         printf("%d", i);
 394                         j = i;
 395                         while ((i+1)<max && isset(p, i+1))
 396                                 i++;
 397                         if (i != j)
 398                                 printf("-%d", i);
 399                 }
 400         printf("\n");
 401 }
 402
 403 void
 404 ufserr(const char *name)
 405 {
 406         if (disk.d_error != NULL)
 407                 warnx("%s: %s", name, disk.d_error);
 408         else if (errno)
 409                 warn("%s", name);
 410 }
 411
 412 void
 413 usage(void)
 414 {
 415         (void)fprintf(stderr, "usage: dumpfs [-m] filesys | device\n");
 416         exit(1);
 417 }