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) 1982, 1989, 1993
  12  *      The Regents of the University of California.  All rights reserved.
  13  * (c) UNIX System Laboratories, Inc.
  14  * Copyright (c) 1983, 1992, 1993
  15  *      The Regents of the University of California.  All rights reserved.
  16  *
  17  * Redistribution and use in source and binary forms, with or without
  18  * modification, are permitted provided that the following conditions
  19  * are met:
  20  * 1. Redistributions of source code must retain the above copyright
  21  *    notice, this list of conditions and the following disclaimer.
  22  * 2. Redistributions in binary form must reproduce the above copyright
  23  *    notice, this list of conditions and the following disclaimer in the
  24  *    documentation and/or other materials provided with the distribution.
  25  * 3. All advertising materials mentioning features or use of this software
  26  *    must display the following acknowledgement:
  27  *      This product includes software developed by the University of
  28  *      California, Berkeley and its contributors.
  29  * 4. Neither the name of the University nor the names of its contributors
  30  *    may be used to endorse or promote products derived from this software
  31  *    without specific prior written permission.
  32  *
  33  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  34  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  35  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  36  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  37  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  38  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  39  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  40  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  41  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  42  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  43  * SUCH DAMAGE.
  44  */
  45
  46 #ifndef lint
  47 static const char copyright[] =
  48 "@(#) Copyright (c) 1983, 1992, 1993\n\
  49         The Regents of the University of California.  All rights reserved.\n";
  50 #endif /* not lint */
  51
  52 #ifndef lint
  53 #if 0
  54 static char sccsid[] = "@(#)dumpfs.c    8.5 (Berkeley) 4/29/95";
  55 #endif
  56 static const char rcsid[] =
  57   "$FreeBSD$";
  58 #endif /* not lint */
  59
  60 #include <sys/param.h>
  61 #include <sys/time.h>
  62 #include <sys/disklabel.h>
  63
  64 #include <ufs/ufs/dinode.h>
  65 #include <ufs/ffs/fs.h>
  66
  67 #include <err.h>
  68 #include <fcntl.h>
  69 #include <fstab.h>
  70 #include <libufs.h>
  71 #include <stdio.h>
  72 #include <stdlib.h>
  73 #include <unistd.h>
  74
  75 #define afs     disk.d_fs
  76
  77 union {
  78         struct cg cg;
  79         char pad[MAXBSIZE];
  80 } cgun;
  81 #define acg     cgun.cg
  82
  83 struct uufsd disk;
  84
  85 int     dumpfs(const char *);
  86 int     dumpcg(int);
  87 void    pbits(void *, int);
  88 void    usage(void) __dead2;
  89
  90 int
  91 main(int argc, char *argv[])
  92 {
  93         struct fstab *fs;
  94         int ch, eval;
  95
  96         while ((ch = getopt(argc, argv, "")) != -1)
  97                 switch(ch) {
  98                 case '?':
  99                 default:
 100                         usage();
 101                 }
 102         argc -= optind;
 103         argv += optind;
 104
 105         if (argc < 1)
 106                 usage();
 107
 108         for (eval = 0; *argv; ++argv)
 109                 if ((fs = getfsfile(*argv)) == NULL)
 110                         eval |= dumpfs(*argv);
 111                 else
 112                         eval |= dumpfs(fs->fs_spec);
 113         exit(eval);
 114 }
 115
 116 int
 117 dumpfs(const char *name)
 118 {
 119         time_t time;
 120         int64_t fssize;
 121         int i;
 122
 123         if (ufs_disk_fillout(&disk, name) == -1)
 124                         goto err;
 125
 126         switch (disk.d_ufs) {
 127         case 2:
 128                 fssize = afs.fs_size;
 129                 time = afs.fs_time;
 130                 printf("magic\t%x (UFS2)\ttime\t%s",
 131                     afs.fs_magic, ctime(&time));
 132                 printf("offset\t%qd\tid\t[ %x %x ]\n",
 133                     afs.fs_sblockloc, afs.fs_id[0], afs.fs_id[1]);
 134                 printf("ncg\t%d\tsize\t%qd\tblocks\t%d\n",
 135                     afs.fs_ncg, fssize, afs.fs_dsize);
 136                 break;
 137         case 1:
 138                 fssize = afs.fs_old_size;
 139                 printf("magic\t%x (UFS1)\ttime\t%s",
 140                     afs.fs_magic, ctime(&afs.fs_old_time));
 141                 printf("id\t[ %x %x ]\n", afs.fs_id[0], afs.fs_id[1]);
 142                 printf("ncg\t%d\tsize\t%qd\tblocks\t%d\n",
 143                     afs.fs_ncg, fssize, afs.fs_dsize);
 144                 break;
 145         default:
 146                 break;
 147         }
 148         printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
 149             afs.fs_bsize, afs.fs_bshift, afs.fs_bmask);
 150         printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
 151             afs.fs_fsize, afs.fs_fshift, afs.fs_fmask);
 152         printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
 153             afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb);
 154         printf("minfree\t%d%%\toptim\t%s\tsymlinklen %d\n",
 155             afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time",
 156             afs.fs_maxsymlinklen);
 157         switch (disk.d_ufs) {
 158         case 2:
 159                 printf("%s %d\tmaxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
 160                     "maxbsize", afs.fs_maxbsize, afs.fs_maxbpg,
 161                     afs.fs_maxcontig, afs.fs_contigsumsize);
 162                 printf("nbfree\t%qd\tndir\t%qd\tnifree\t%qd\tnffree\t%qd\n",
 163                     afs.fs_cstotal.cs_nbfree, afs.fs_cstotal.cs_ndir,
 164                     afs.fs_cstotal.cs_nifree, afs.fs_cstotal.cs_nffree);
 165                 printf("bpg\t%d\tfpg\t%d\tipg\t%d\n",
 166                     afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg);
 167                 printf("nindir\t%d\tinopb\t%d\tmaxfilesize\t%qu\n",
 168                     afs.fs_nindir, afs.fs_inopb, afs.fs_maxfilesize);
 169                 printf("sbsize\t%d\tcgsize\t%d\tcsaddr\t%d\tcssize\t%d\n",
 170                     afs.fs_sbsize, afs.fs_cgsize, afs.fs_csaddr, afs.fs_cssize);
 171                 break;
 172         case 1:
 173                 printf("maxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
 174                     afs.fs_maxbpg, afs.fs_maxcontig, afs.fs_contigsumsize);
 175                 printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
 176                     afs.fs_old_cstotal.cs_nbfree, afs.fs_old_cstotal.cs_ndir,
 177                     afs.fs_old_cstotal.cs_nifree, afs.fs_old_cstotal.cs_nffree);
 178                 printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n",
 179                     afs.fs_old_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg,
 180                     afs.fs_ipg);
 181                 printf("nindir\t%d\tinopb\t%d\tnspf\t%d\tmaxfilesize\t%qu\n",
 182                     afs.fs_nindir, afs.fs_inopb, afs.fs_old_nspf,
 183                     afs.fs_maxfilesize);
 184                 printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n",
 185                     afs.fs_sbsize, afs.fs_cgsize, afs.fs_old_cgoffset,
 186                     afs.fs_old_cgmask);
 187                 printf("csaddr\t%d\tcssize\t%d\n",
 188                     afs.fs_old_csaddr, afs.fs_cssize);
 189                 printf("rotdelay %dms\trps\t%d\ttrackskew %d\tinterleave %d\n",
 190                     afs.fs_old_rotdelay, afs.fs_old_rps, afs.fs_old_trackskew,
 191                     afs.fs_old_interleave);
 192                 printf("nsect\t%d\tnpsect\t%d\tspc\t%d\n",
 193                     afs.fs_old_nsect, afs.fs_old_npsect, afs.fs_old_spc);
 194                 break;
 195         default:
 196                 break;
 197         }
 198         printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
 199             afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno);
 200         printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t%d\n",
 201             afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean);
 202         printf("flags\t");
 203         if (afs.fs_flags == 0)
 204                 printf("none");
 205         if (afs.fs_flags & FS_UNCLEAN)
 206                         printf("unclean ");
 207         if (afs.fs_flags & FS_DOSOFTDEP)
 208                         printf("soft-updates ");
 209         if (afs.fs_flags & FS_NEEDSFSCK)
 210                         printf("needs fsck run ");
 211         if (afs.fs_flags & FS_INDEXDIRS)
 212                         printf("indexed directories ");
 213         if ((afs.fs_flags &
 214             ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK | FS_INDEXDIRS)) != 0)
 215                         printf("unknown flags (%#x)", afs.fs_flags &
 216                             ~(FS_UNCLEAN | FS_DOSOFTDEP |
 217                               FS_NEEDSFSCK | FS_INDEXDIRS));
 218         putchar('\n');
 219         printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
 220         afs.fs_csp = calloc(1, afs.fs_cssize);
 221         if (bread(&disk, fsbtodb(&afs, afs.fs_csaddr), afs.fs_csp, afs.fs_cssize) == -1)
 222                 goto err;
 223         for (i = 0; i < afs.fs_ncg; i++) {
 224                 struct csum *cs = &afs.fs_cs(&afs, i);
 225                 if (i && i % 4 == 0)
 226                         printf("\n\t");
 227                 printf("(%d,%d,%d,%d) ",
 228                     cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree);
 229         }
 230         printf("\n");
 231         if (fssize % afs.fs_fpg) {
 232                 if (disk.d_ufs == 1)
 233                         printf("cylinders in last group %d\n",
 234                             howmany(afs.fs_old_size % afs.fs_fpg,
 235                             afs.fs_old_spc / afs.fs_old_nspf));
 236                 printf("blocks in last group %d\n\n",
 237                     (fssize % afs.fs_fpg) / afs.fs_frag);
 238         }
 239         for (i = 0; i < afs.fs_ncg; i++)
 240                 if (dumpcg(i))
 241                         goto err;
 242         ufs_disk_close(&disk);
 243         return (0);
 244
 245 err:    ufs_disk_close(&disk);
 246         warn("%s", name);
 247         return (1);
 248 }
 249
 250 int
 251 dumpcg(int c)
 252 {
 253         time_t time;
 254         off_t cur;
 255         int i, j;
 256
 257         printf("\ncg %d:\n", c);
 258         cur = fsbtodb(&afs, cgtod(&afs, c)) * disk.d_bsize;
 259         if (bread(&disk, fsbtodb(&afs, cgtod(&afs, c)), &acg, afs.fs_bsize) == -1)
 260                 return (1);
 261         switch (disk.d_ufs) {
 262         case 2:
 263                 time = acg.cg_time;
 264                 printf("magic\t%x\ttell\t%qx\ttime\t%s",
 265                     acg.cg_magic, cur, ctime(&time));
 266                 printf("cgx\t%d\tndblk\t%d\tniblk\t%d\tinitiblk %d\n",
 267                     acg.cg_cgx, acg.cg_ndblk, acg.cg_niblk, acg.cg_initediblk);
 268                 break;
 269         case 1:
 270                 printf("magic\t%x\ttell\t%qx\ttime\t%s",
 271                     acg.cg_magic, cur, ctime(&acg.cg_old_time));
 272                 printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
 273                     acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk,
 274                     acg.cg_ndblk);
 275                 break;
 276         default:
 277                 break;
 278         }
 279         printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
 280             acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir,
 281             acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree);
 282         printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum",
 283             acg.cg_rotor, acg.cg_irotor, acg.cg_frotor);
 284         for (i = 1, j = 0; i < afs.fs_frag; i++) {
 285                 printf("\t%d", acg.cg_frsum[i]);
 286                 j += i * acg.cg_frsum[i];
 287         }
 288         printf("\nsum of frsum: %d", j);
 289         if (afs.fs_contigsumsize > 0) {
 290                 for (i = 1; i < afs.fs_contigsumsize; i++) {
 291                         if ((i - 1) % 8 == 0)
 292                                 printf("\nclusters %d-%d:", i,
 293                                     afs.fs_contigsumsize - 1 < i + 7 ?
 294                                     afs.fs_contigsumsize - 1 : i + 7);
 295                         printf("\t%d", cg_clustersum(&acg)[i]);
 296                 }
 297                 printf("\nclusters size %d and over: %d\n",
 298                     afs.fs_contigsumsize,
 299                     cg_clustersum(&acg)[afs.fs_contigsumsize]);
 300                 printf("clusters free:\t");
 301                 pbits(cg_clustersfree(&acg), acg.cg_nclusterblks);
 302         } else
 303                 printf("\n");
 304         printf("inodes used:\t");
 305         pbits(cg_inosused(&acg), afs.fs_ipg);
 306         printf("blks free:\t");
 307         pbits(cg_blksfree(&acg), afs.fs_fpg);
 308         return (0);
 309 }
 310
 311 void
 312 pbits(void *vp, int max)
 313 {
 314         int i;
 315         char *p;
 316         int count, j;
 317
 318         for (count = i = 0, p = vp; i < max; i++)
 319                 if (isset(p, i)) {
 320                         if (count)
 321                                 printf(",%s", count % 6 ? " " : "\n\t");
 322                         count++;
 323                         printf("%d", i);
 324                         j = i;
 325                         while ((i+1)<max && isset(p, i+1))
 326                                 i++;
 327                         if (i != j)
 328                                 printf("-%d", i);
 329                 }
 330         printf("\n");
 331 }
 332
 333 void
 334 usage(void)
 335 {
 336         (void)fprintf(stderr, "usage: dumpfs filesys | device\n");
 337         exit(1);
 338 }