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dumpfs.c

/*
 * Copyright (c) 2002 Networks Associates Technology, Inc.
 * All rights reserved.
 *
 * This software was developed for the FreeBSD Project by Marshall
 * Kirk McKusick and Network Associates Laboratories, the Security
 * Research Division of Network Associates, Inc. under DARPA/SPAWAR
 * contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
 * research program.
 *
 * Copyright (c) 1983, 1992, 1993
 *    The Regents of the University of California.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 */

#ifndef lint
static const char copyright[] =
"@(#) Copyright (c) 1983, 1992, 1993\n\
      The Regents of the University of California.  All rights reserved.\n";
#endif /* not lint */

#ifndef lint
#if 0
static char sccsid[] = "@(#)dumpfs.c      8.5 (Berkeley) 4/29/95";
#endif
static const char rcsid[] =
  "$FreeBSD: src/sbin/dumpfs/dumpfs.c,v 1.44 2006/10/31 22:02:24 pjd Exp $";
#endif /* not lint */

#include <sys/param.h>
#include <sys/time.h>
#include <sys/disklabel.h>

#include <ufs/ufs/dinode.h>
#include <ufs/ffs/fs.h>

#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <fstab.h>
#include <libufs.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#define     afs   disk.d_fs
#define     acg   disk.d_cg

struct uufsd disk;

int   dumpfs(const char *);
int   dumpcg(void);
int   marshal(const char *);
void  pbits(void *, int);
void  ufserr(const char *);
void  usage(void) __dead2;

int
main(int argc, char *argv[])
{
      const char *name;
      int ch, domarshal, eval;

      domarshal = eval = 0;

      while ((ch = getopt(argc, argv, "m")) != -1) {
            switch (ch) {
            case 'm':
                  domarshal = 1;
                  break;
            case '?':
            default:
                  usage();
            }
      }
      argc -= optind;
      argv += optind;

      if (argc < 1)
            usage();

      while ((name = *argv++) != NULL) {
            if (ufs_disk_fillout(&disk, name) == -1) {
                  ufserr(name);
                  eval |= 1;
                  continue;
            }
            if (domarshal)
                  eval |= marshal(name);
            else
                  eval |= dumpfs(name);
            ufs_disk_close(&disk);
      }
      exit(eval);
}

int
dumpfs(const char *name)
{
      time_t fstime;
      int64_t fssize;
      int32_t fsflags;
      int i;

      switch (disk.d_ufs) {
      case 2:
            fssize = afs.fs_size;
            fstime = afs.fs_time;
            printf("magic\t%x (UFS2)\ttime\t%s",
                afs.fs_magic, ctime(&fstime));
            printf("superblock location\t%jd\tid\t[ %x %x ]\n",
                (intmax_t)afs.fs_sblockloc, afs.fs_id[0], afs.fs_id[1]);
            printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
                afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
            break;
      case 1:
            fssize = afs.fs_old_size;
            fstime = afs.fs_old_time;
            printf("magic\t%x (UFS1)\ttime\t%s",
                afs.fs_magic, ctime(&fstime));
            printf("id\t[ %x %x ]\n", afs.fs_id[0], afs.fs_id[1]);
            printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
                afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
            break;
      default:
            goto err;
      }
      printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
          afs.fs_bsize, afs.fs_bshift, afs.fs_bmask);
      printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
          afs.fs_fsize, afs.fs_fshift, afs.fs_fmask);
      printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
          afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb);
      printf("minfree\t%d%%\toptim\t%s\tsymlinklen %d\n",
          afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time",
          afs.fs_maxsymlinklen);
      switch (disk.d_ufs) {
      case 2:
            printf("%s %d\tmaxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
                "maxbsize", afs.fs_maxbsize, afs.fs_maxbpg,
                afs.fs_maxcontig, afs.fs_contigsumsize);
            printf("nbfree\t%jd\tndir\t%jd\tnifree\t%jd\tnffree\t%jd\n",
                (intmax_t)afs.fs_cstotal.cs_nbfree, 
                (intmax_t)afs.fs_cstotal.cs_ndir,
                (intmax_t)afs.fs_cstotal.cs_nifree, 
                (intmax_t)afs.fs_cstotal.cs_nffree);
            printf("bpg\t%d\tfpg\t%d\tipg\t%d\tunrefs\t%jd\n",
                afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg,
                (intmax_t)afs.fs_unrefs);
            printf("nindir\t%d\tinopb\t%d\tmaxfilesize\t%ju\n",
                afs.fs_nindir, afs.fs_inopb, 
                (uintmax_t)afs.fs_maxfilesize);
            printf("sbsize\t%d\tcgsize\t%d\tcsaddr\t%jd\tcssize\t%d\n",
                afs.fs_sbsize, afs.fs_cgsize, (intmax_t)afs.fs_csaddr,
                afs.fs_cssize);
            break;
      case 1:
            printf("maxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
                afs.fs_maxbpg, afs.fs_maxcontig, afs.fs_contigsumsize);
            printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
                afs.fs_old_cstotal.cs_nbfree, afs.fs_old_cstotal.cs_ndir,
                afs.fs_old_cstotal.cs_nifree, afs.fs_old_cstotal.cs_nffree);
            printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n",
                afs.fs_old_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg,
                afs.fs_ipg);
            printf("nindir\t%d\tinopb\t%d\tnspf\t%d\tmaxfilesize\t%ju\n",
                afs.fs_nindir, afs.fs_inopb, afs.fs_old_nspf,
                (uintmax_t)afs.fs_maxfilesize);
            printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n",
                afs.fs_sbsize, afs.fs_cgsize, afs.fs_old_cgoffset,
                afs.fs_old_cgmask);
            printf("csaddr\t%d\tcssize\t%d\n",
                afs.fs_old_csaddr, afs.fs_cssize);
            printf("rotdelay %dms\trps\t%d\ttrackskew %d\tinterleave %d\n",
                afs.fs_old_rotdelay, afs.fs_old_rps, afs.fs_old_trackskew,
                afs.fs_old_interleave);
            printf("nsect\t%d\tnpsect\t%d\tspc\t%d\n",
                afs.fs_old_nsect, afs.fs_old_npsect, afs.fs_old_spc);
            break;
      default:
            goto err;
      }
      printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
          afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno);
      printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t%d\n",
          afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean);
      printf("avgfpdir %d\tavgfilesize %d\n",
          afs.fs_avgfpdir, afs.fs_avgfilesize);
      printf("flags\t");
      if (afs.fs_old_flags & FS_FLAGS_UPDATED)
            fsflags = afs.fs_flags;
      else
            fsflags = afs.fs_old_flags;
      if (fsflags == 0)
            printf("none");
      if (fsflags & FS_UNCLEAN)
            printf("unclean ");
      if (fsflags & FS_DOSOFTDEP)
            printf("soft-updates ");
      if (fsflags & FS_NEEDSFSCK)
            printf("needs fsck run ");
      if (fsflags & FS_INDEXDIRS)
            printf("indexed directories ");
      if (fsflags & FS_ACLS)
            printf("acls ");
      if (fsflags & FS_MULTILABEL)
            printf("multilabel ");
      if (fsflags & FS_GJOURNAL)
            printf("gjournal ");
      if (fsflags & FS_FLAGS_UPDATED)
            printf("fs_flags expanded ");
      fsflags &= ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK | FS_INDEXDIRS |
                 FS_ACLS | FS_MULTILABEL | FS_GJOURNAL | FS_FLAGS_UPDATED);
      if (fsflags != 0)
            printf("unknown flags (%#x)", fsflags);
      putchar('\n');
      printf("fsmnt\t%s\n", afs.fs_fsmnt);
      printf("volname\t%s\tswuid\t%ju\n",
            afs.fs_volname, (uintmax_t)afs.fs_swuid);
      printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
      afs.fs_csp = calloc(1, afs.fs_cssize);
      if (bread(&disk, fsbtodb(&afs, afs.fs_csaddr), afs.fs_csp, afs.fs_cssize) == -1)
            goto err;
      for (i = 0; i < afs.fs_ncg; i++) {
            struct csum *cs = &afs.fs_cs(&afs, i);
            if (i && i % 4 == 0)
                  printf("\n\t");
            printf("(%d,%d,%d,%d) ",
                cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree);
      }
      printf("\n");
      if (fssize % afs.fs_fpg) {
            if (disk.d_ufs == 1)
                  printf("cylinders in last group %d\n",
                      howmany(afs.fs_old_size % afs.fs_fpg,
                      afs.fs_old_spc / afs.fs_old_nspf));
            printf("blocks in last group %ld\n\n",
                (long)((fssize % afs.fs_fpg) / afs.fs_frag));
      }
      while ((i = cgread(&disk)) != 0) {
            if (i == -1 || dumpcg())
                  goto err;
      }
      return (0);

err:  ufserr(name);
      return (1);
}

int
dumpcg(void)
{
      time_t cgtime;
      off_t cur;
      int i, j;

      printf("\ncg %d:\n", disk.d_lcg);
      cur = fsbtodb(&afs, cgtod(&afs, disk.d_lcg)) * disk.d_bsize;
      switch (disk.d_ufs) {
      case 2:
            cgtime = acg.cg_time;
            printf("magic\t%x\ttell\t%jx\ttime\t%s",
                acg.cg_magic, (intmax_t)cur, ctime(&cgtime));
            printf("cgx\t%d\tndblk\t%d\tniblk\t%d\tinitiblk %d\tunrefs %d\n",
                acg.cg_cgx, acg.cg_ndblk, acg.cg_niblk, acg.cg_initediblk,
                acg.cg_unrefs);
            break;
      case 1:
            cgtime = acg.cg_old_time;
            printf("magic\t%x\ttell\t%jx\ttime\t%s",
                acg.cg_magic, (intmax_t)cur, ctime(&cgtime));
            printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
                acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk,
                acg.cg_ndblk);
            break;
      default:
            break;
      }
      printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
          acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir,
          acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree);
      printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum",
          acg.cg_rotor, acg.cg_irotor, acg.cg_frotor);
      for (i = 1, j = 0; i < afs.fs_frag; i++) {
            printf("\t%d", acg.cg_frsum[i]);
            j += i * acg.cg_frsum[i];
      }
      printf("\nsum of frsum: %d", j);
      if (afs.fs_contigsumsize > 0) {
            for (i = 1; i < afs.fs_contigsumsize; i++) {
                  if ((i - 1) % 8 == 0)
                        printf("\nclusters %d-%d:", i,
                            afs.fs_contigsumsize - 1 < i + 7 ?
                            afs.fs_contigsumsize - 1 : i + 7);
                  printf("\t%d", cg_clustersum(&acg)[i]);
            }
            printf("\nclusters size %d and over: %d\n",
                afs.fs_contigsumsize,
                cg_clustersum(&acg)[afs.fs_contigsumsize]);
            printf("clusters free:\t");
            pbits(cg_clustersfree(&acg), acg.cg_nclusterblks);
      } else
            printf("\n");
      printf("inodes used:\t");
      pbits(cg_inosused(&acg), afs.fs_ipg);
      printf("blks free:\t");
      pbits(cg_blksfree(&acg), afs.fs_fpg);
      return (0);
}

int
marshal(const char *name)
{
      struct fs *fs;

      fs = &disk.d_fs;

      printf("# newfs command for %s (%s)\n", name, disk.d_name);
      printf("newfs ");
      if (fs->fs_volname[0] != '\0')
            printf("-L %s ", fs->fs_volname);
      printf("-O %d ", disk.d_ufs);
      if (fs->fs_flags & FS_DOSOFTDEP)
            printf("-U ");
      printf("-a %d ", fs->fs_maxcontig);
      printf("-b %d ", fs->fs_bsize);
      /* -c is dumb */
      printf("-d %d ", fs->fs_maxbsize);
      printf("-e %d ", fs->fs_maxbpg);
      printf("-f %d ", fs->fs_fsize);
      printf("-g %d ", fs->fs_avgfilesize);
      printf("-h %d ", fs->fs_avgfpdir);
      /* -i is dumb */
      /* -j..l unimplemented */
      printf("-m %d ", fs->fs_minfree);
      /* -n unimplemented */
      printf("-o ");
      switch (fs->fs_optim) {
      case FS_OPTSPACE:
            printf("space ");
            break;
      case FS_OPTTIME:
            printf("time ");
            break;
      default:
            printf("unknown ");
            break;
      }
      /* -p..r unimplemented */
      printf("-s %jd ", (intmax_t)fs->fs_size);
      printf("%s ", disk.d_name);
      printf("\n");

      return 0;
}

void
pbits(void *vp, int max)
{
      int i;
      char *p;
      int count, j;

      for (count = i = 0, p = vp; i < max; i++)
            if (isset(p, i)) {
                  if (count)
                        printf(",%s", count % 6 ? " " : "\n\t");
                  count++;
                  printf("%d", i);
                  j = i;
                  while ((i+1)<max && isset(p, i+1))
                        i++;
                  if (i != j)
                        printf("-%d", i);
            }
      printf("\n");
}

void
ufserr(const char *name)
{
      if (disk.d_error != NULL)
            warnx("%s: %s", name, disk.d_error);
      else if (errno)
            warn("%s", name);
}

void
usage(void)
{
      (void)fprintf(stderr, "usage: dumpfs [-m] filesys | device\n");
      exit(1);
}

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