564 lines
15 KiB
C
564 lines
15 KiB
C
/* $NetBSD: dumpfs.c,v 1.38 2003/08/30 12:48:11 wiz Exp $ */
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/*
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* Copyright (c) 1983, 1992, 1993
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* The Regents of the University of California. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1983, 1992, 1993\n\
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The Regents of the University of California. All rights reserved.\n");
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#endif /* not lint */
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#ifndef lint
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#if 0
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static char sccsid[] = "@(#)dumpfs.c 8.5 (Berkeley) 4/29/95";
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#else
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__RCSID("$NetBSD: dumpfs.c,v 1.38 2003/08/30 12:48:11 wiz Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/time.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ufs/ufs_bswap.h>
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#include <ufs/ffs/fs.h>
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#include <ufs/ffs/ffs_extern.h>
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#include <err.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <fstab.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <util.h>
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union {
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struct fs fs;
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char pad[MAXBSIZE];
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} fsun;
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#define afs fsun.fs
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union {
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struct cg cg;
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char pad[MAXBSIZE];
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} cgun;
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#define acg cgun.cg
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#define OPT_FLAG(ch) (1 << ((ch) & 31))
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#define ISOPT(opt) (opt_flags & (opt))
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#define opt_superblock OPT_FLAG('s')
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#define opt_cg_summary OPT_FLAG('m')
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#define opt_cg_info OPT_FLAG('c')
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#define opt_inodes OPT_FLAG('i')
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#define opt_verbose OPT_FLAG('v')
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#define DFLT_OPTS (opt_superblock | opt_cg_summary | opt_cg_info)
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long dev_bsize = 1;
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int needswap, printold, is_ufs2;
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int Fflag;
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uint opt_flags;
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int dumpfs(const char *);
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int print_superblock(const char *, int, off_t);
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int print_cgsum(const char *, int);
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int print_cginfo(const char *, int);
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int print_inodes(const char *, int);
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int dumpcg(const char *, int, int);
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int main(int, char **);
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int openpartition(const char *, int, char *, size_t);
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void pbits(int, void *, int);
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void usage(void);
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void swap_cg(struct cg *);
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void print_ufs1_inode(int, int, void *);
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void print_ufs2_inode(int, int, void *);
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int
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main(int argc, char *argv[])
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{
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int ch, eval;
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while ((ch = getopt(argc, argv, "Fcimsv")) != -1)
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switch(ch) {
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case 'c': /* cylinder group info */
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case 'i': /* actual inodes */
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case 'm': /* cylinder group summary */
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case 's': /* superblock */
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case 'v': /* more verbose */
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opt_flags |= OPT_FLAG(ch);
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break;
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case 'F': /* File (not device) */
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Fflag = 1;
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case '?':
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default:
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usage();
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}
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argc -= optind;
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argv += optind;
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if (opt_flags == 0)
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opt_flags = DFLT_OPTS;
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if (argc < 1)
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usage();
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for (eval = 0; *argv; ++argv) {
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eval |= dumpfs(*argv);
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printf("\n");
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}
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exit(eval);
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}
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int
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dumpfs(const char *name)
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{
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const static off_t sblock_try[] = SBLOCKSEARCH;
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char device[MAXPATHLEN];
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int fd, i;
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int rval = 1;
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if (Fflag)
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fd = open(name, O_RDONLY);
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else {
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fd = openpartition(name, O_RDONLY, device, sizeof(device));
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name = device;
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}
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if (fd == -1)
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goto err;
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for (i = 0; ; i++) {
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if (sblock_try[i] == -1) {
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warnx("%s: could not find superblock, skipped", name);
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return 1;
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}
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if (lseek(fd, sblock_try[i], SEEK_SET) == (off_t)-1)
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continue;
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if (read(fd, &afs, SBLOCKSIZE) != SBLOCKSIZE)
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continue;
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switch(afs.fs_magic) {
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case FS_UFS2_MAGIC:
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is_ufs2 = 1;
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break;
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case FS_UFS1_MAGIC:
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break;
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case FS_UFS2_MAGIC_SWAPPED:
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is_ufs2 = 1;
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needswap = 1;
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break;
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case FS_UFS1_MAGIC_SWAPPED:
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needswap = 1;
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break;
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default:
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continue;
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}
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break;
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}
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if (needswap)
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ffs_sb_swap(&afs, &afs);
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printold = (afs.fs_magic == FS_UFS1_MAGIC &&
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(afs.fs_old_flags & FS_FLAGS_UPDATED) == 0);
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if (printold) {
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afs.fs_flags = afs.fs_old_flags;
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afs.fs_maxbsize = afs.fs_bsize;
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afs.fs_time = afs.fs_old_time;
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afs.fs_size = afs.fs_old_size;
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afs.fs_dsize = afs.fs_old_dsize;
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afs.fs_csaddr = afs.fs_old_csaddr;
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afs.fs_cstotal.cs_ndir = afs.fs_old_cstotal.cs_ndir;
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afs.fs_cstotal.cs_nbfree = afs.fs_old_cstotal.cs_nbfree;
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afs.fs_cstotal.cs_nifree = afs.fs_old_cstotal.cs_nifree;
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afs.fs_cstotal.cs_nffree = afs.fs_old_cstotal.cs_nffree;
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}
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if (printold && afs.fs_old_postblformat == FS_42POSTBLFMT)
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afs.fs_old_nrpos = 8;
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dev_bsize = afs.fs_fsize / fsbtodb(&afs, 1);
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rval = 0;
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printf("file system: %s\n", name);
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if (ISOPT(opt_superblock))
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rval = print_superblock(name, fd, sblock_try[i]);
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if (rval == 0 && ISOPT(opt_cg_summary))
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rval = print_cgsum(name, fd);
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if (rval == 0 && ISOPT(opt_cg_info))
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rval = print_cginfo(name, fd);
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if (rval == 0 && ISOPT(opt_inodes))
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rval = print_inodes(name, fd);
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err:
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if (fd != -1)
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(void)close(fd);
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if (rval)
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warn("%s", name);
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return rval;
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}
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int
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print_superblock(const char *name, int fd, off_t sblock)
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{
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int i, size;
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time_t t;
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#if BYTE_ORDER == LITTLE_ENDIAN
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if (needswap)
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#else
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if (!needswap)
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#endif
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printf("endian\tbig-endian\n");
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else
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printf("endian\tlittle-endian\n");
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t = afs.fs_time;
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printf("location%lld\tmagic\t%x\ttime\t%s", (long long)sblock,
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afs.fs_magic, ctime(&t));
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if (is_ufs2)
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i = 4;
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else {
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i = 0;
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if (!printold && afs.fs_old_postblformat != FS_42POSTBLFMT) {
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i++;
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if (afs.fs_old_inodefmt >= FS_44INODEFMT) {
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int max;
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i++;
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max = afs.fs_maxcontig;
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size = afs.fs_contigsumsize;
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if ((max < 2 && size == 0)
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|| (max > 1 && size >= MIN(max, FS_MAXCONTIG)))
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i++;
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}
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}
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}
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printf("id\t[ %x %x ]\n", afs.fs_id[0], afs.fs_id[1]);
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printf("cylgrp\t%s\tinodes\t%s\tfslevel %d\tsoftdep %sabled\n",
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i < 1 ? "static" : "dynamic",
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i < 2 ? "4.2/4.3BSD" : i < 4 ? "4.4BSD" : "FFSv2", i,
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(afs.fs_flags & FS_DOSOFTDEP) ? "en" : "dis");
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printf("nbfree\t%lld\tndir\t%lld\tnifree\t%lld\tnffree\t%lld\n",
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(long long)afs.fs_cstotal.cs_nbfree,
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(long long)afs.fs_cstotal.cs_ndir,
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(long long)afs.fs_cstotal.cs_nifree,
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(long long)afs.fs_cstotal.cs_nffree);
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printf("ncg\t%d\tsize\t%lld\tblocks\t%lld\n",
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afs.fs_ncg, (long long)afs.fs_size, (long long)afs.fs_dsize);
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if (printold)
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printf("ncyl\t%d\n", afs.fs_old_ncyl);
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printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
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afs.fs_bsize, afs.fs_bshift, afs.fs_bmask);
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printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
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afs.fs_fsize, afs.fs_fshift, afs.fs_fmask);
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printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
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afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb);
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printf("bpg\t%d\tfpg\t%d\tipg\t%d\n",
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afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg);
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printf("minfree\t%d%%\toptim\t%s\tmaxcontig %d\tmaxbpg\t%d\n",
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afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time",
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afs.fs_maxcontig, afs.fs_maxbpg);
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if (printold) {
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printf("cpg\t%d\trotdelay %dms\trps\t%d\n",
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afs.fs_old_cpg, afs.fs_old_rotdelay, afs.fs_old_rps);
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printf("ntrak\t%d\tnsect\t%d\tnpsect\t%d\tspc\t%d\n",
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afs.fs_spare2, afs.fs_old_nsect, afs.fs_old_npsect,
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afs.fs_old_spc);
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printf("trackskew %d\tinterleave %d\n",
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afs.fs_old_trackskew, afs.fs_old_interleave);
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}
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printf("symlinklen %d\tcontigsumsize %d\n",
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afs.fs_maxsymlinklen, afs.fs_contigsumsize);
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printf("maxfilesize 0x%016llx\n",
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(unsigned long long)afs.fs_maxfilesize);
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printf("nindir\t%d\tinopb\t%d\n", afs.fs_nindir, afs.fs_inopb);
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if (printold)
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printf("nspf\t%d\n", afs.fs_old_nspf);
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printf("avgfilesize %d\tavgfpdir %d\n",
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afs.fs_avgfilesize, afs.fs_avgfpdir);
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printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
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afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno);
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printf("sbsize\t%d\tcgsize\t%d\n", afs.fs_sbsize, afs.fs_cgsize);
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if (printold)
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printf("offset\t%d\tmask\t0x%08x\n",
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afs.fs_old_cgoffset, afs.fs_old_cgmask);
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printf("csaddr\t%lld\tcssize %d\n",
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(long long)afs.fs_csaddr, afs.fs_cssize);
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if (printold)
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printf("shift\t%d\tmask\t0x%08x\n",
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afs.fs_spare1[0], afs.fs_spare1[1]);
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printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t0x%02x\n",
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afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean);
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if (printold) {
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if (afs.fs_old_cpc != 0)
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printf("blocks available in each of %d rotational "
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"positions", afs.fs_old_nrpos);
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else
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printf("(no rotational position table)\n");
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}
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return 0;
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}
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int
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print_cgsum(const char *name, int fd)
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{
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struct csum *ccsp;
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int i, j, size;
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afs.fs_csp = calloc(1, afs.fs_cssize);
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for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) {
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size = afs.fs_cssize - i < afs.fs_bsize ?
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afs.fs_cssize - i : afs.fs_bsize;
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ccsp = (struct csum *)((char *)afs.fs_csp + i);
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if (lseek(fd,
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(off_t)(fsbtodb(&afs, (afs.fs_csaddr + j * afs.fs_frag))) *
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dev_bsize, SEEK_SET) == (off_t)-1)
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return 1;
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if (read(fd, ccsp, size) != size)
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return 1;
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if (needswap)
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ffs_csum_swap(ccsp, ccsp, size);
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}
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printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
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for (i = 0; i < afs.fs_ncg; i++) {
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struct csum *cs = &afs.fs_cs(&afs, i);
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if (i && i % 4 == 0)
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printf("\n\t");
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printf("(%d,%d,%d,%d) ",
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cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree);
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}
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if (i % 4 == 0)
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printf("\n");
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if (printold && (afs.fs_old_ncyl % afs.fs_old_cpg)) {
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printf("cylinders in last group %d\n",
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i = afs.fs_old_ncyl % afs.fs_old_cpg);
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printf("blocks in last group %d\n",
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i * afs.fs_old_spc / (afs.fs_old_nspf << afs.fs_fragshift));
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}
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printf("\n");
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free(afs.fs_csp);
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afs.fs_csp = NULL;
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return 0;
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}
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int
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print_cginfo(const char *name, int fd)
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{
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int i;
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for (i = 0; i < afs.fs_ncg; i++)
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if (dumpcg(name, fd, i))
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return 1;
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return 0;
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}
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int
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print_inodes(const char *name, int fd)
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{
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void *ino_buf = malloc(afs.fs_bsize);
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void (*print_inode)(int, int, void *);
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int i, inum;
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if (ino_buf == 0)
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return 1;
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print_inode = is_ufs2 ? print_ufs2_inode : print_ufs1_inode;
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for (inum = 0; inum < afs.fs_ncg * afs.fs_ipg; inum += afs.fs_inopb) {
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if (pread(fd, ino_buf, afs.fs_bsize,
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ino_to_fsba(&afs, inum) * afs.fs_fsize) != afs.fs_bsize)
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return 1;
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for (i = 0; i < afs.fs_inopb; i++)
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print_inode(inum + i, i, ino_buf);
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}
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free(ino_buf);
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return 0;
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}
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int
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dumpcg(const char *name, int fd, int c)
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{
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off_t cur;
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int i, j;
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time_t t;
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printf("\ncg %d:\n", c);
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if ((cur = lseek(fd, (off_t)(fsbtodb(&afs, cgtod(&afs, c))) * dev_bsize,
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SEEK_SET)) == (off_t)-1)
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return (1);
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if (read(fd, &acg, afs.fs_bsize) != afs.fs_bsize) {
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warnx("%s: error reading cg", name);
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return (1);
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}
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if (needswap)
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ffs_cg_swap(&acg, &acg, &afs);
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t = acg.cg_time;
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printf("magic\t%x\ttell\t%llx\ttime\t%s",
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afs.fs_old_postblformat == FS_42POSTBLFMT ?
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((struct ocg *)&acg)->cg_magic : acg.cg_magic,
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(long long)cur, ctime(&t));
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printf("cgx\t%d\tniblk\t%d\tndblk\t%d\n",
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acg.cg_cgx, acg.cg_niblk, acg.cg_ndblk);
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printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
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acg.cg_cs.cs_nbfree, acg.cg_cs.cs_ndir,
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acg.cg_cs.cs_nifree, acg.cg_cs.cs_nffree);
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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, 0)[i]);
|
|
}
|
|
printf("\nclusters size %d and over: %d\n",
|
|
afs.fs_contigsumsize,
|
|
cg_clustersum(&acg, 0)[afs.fs_contigsumsize]);
|
|
printf("clusters free:\t");
|
|
pbits(0, cg_clustersfree(&acg, 0), acg.cg_nclusterblks);
|
|
} else
|
|
printf("\n");
|
|
printf("iused:\t");
|
|
pbits(c * afs.fs_ipg, cg_inosused(&acg, 0), afs.fs_ipg);
|
|
printf("free:\t");
|
|
pbits(0, cg_blksfree(&acg, 0), afs.fs_fpg);
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
print_ufs1_inode(int inum, int i_off, void *ibuf)
|
|
{
|
|
struct ufs1_dinode *i = ibuf;
|
|
|
|
i += i_off;
|
|
|
|
if (inum == 0)
|
|
printf("\n inode: mode nlink size"
|
|
" ctime.nsec flags blocks"
|
|
" generation uid gid\n");
|
|
if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose))
|
|
return;
|
|
printf("%8u: %6o %6d %20" PRIu64 " %10u.%09u %8x %10u %8x %10u %10u\n",
|
|
inum, i->di_mode, i->di_nlink, i->di_size,
|
|
i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks,
|
|
i->di_gen, i->di_uid, i->di_gid);
|
|
}
|
|
|
|
void
|
|
print_ufs2_inode(int inum, int i_off, void *ibuf)
|
|
{
|
|
struct ufs2_dinode *i = ibuf;
|
|
|
|
i += i_off;
|
|
|
|
if (inum == 0)
|
|
printf("\n inode: mode nlink size"
|
|
" ctime.nsec flags blocks"
|
|
" generation uid gid\n");
|
|
|
|
if (i->di_mode == 0 && i->di_nlink == 0 && !ISOPT(opt_verbose))
|
|
return;
|
|
|
|
printf("%8u: %6o %6d %20" PRIu64 " %10" PRIu64 ".%09u %8x %10" PRIu64 " %8x %10u %10u\n",
|
|
inum, i->di_mode, i->di_nlink, i->di_size,
|
|
i->di_ctime, i->di_ctimensec, i->di_flags, i->di_blocks,
|
|
i->di_gen, i->di_uid, i->di_gid);
|
|
}
|
|
|
|
|
|
void
|
|
pbits(int offset, 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", offset + i);
|
|
j = i;
|
|
while ((i+1)<max && isset(p, i+1))
|
|
i++;
|
|
if (i != j)
|
|
printf("-%d", offset + i);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
void
|
|
usage(void)
|
|
{
|
|
|
|
(void)fprintf(stderr, "usage: dumpfs [-cFimsv] filesys | device [...]\n");
|
|
exit(1);
|
|
}
|
|
|
|
int
|
|
openpartition(const char *name, int flags, char *device, size_t devicelen)
|
|
{
|
|
char rawspec[MAXPATHLEN], *p;
|
|
struct fstab *fs;
|
|
int fd, oerrno;
|
|
|
|
fs = getfsfile(name);
|
|
if (fs) {
|
|
if ((p = strrchr(fs->fs_spec, '/')) != NULL) {
|
|
snprintf(rawspec, sizeof(rawspec), "%.*s/r%s",
|
|
(int)(p - fs->fs_spec), fs->fs_spec, p + 1);
|
|
name = rawspec;
|
|
} else
|
|
name = fs->fs_spec;
|
|
}
|
|
fd = opendisk(name, flags, device, devicelen, 0);
|
|
if (fd == -1 && errno == ENOENT) {
|
|
oerrno = errno;
|
|
strlcpy(device, name, devicelen);
|
|
errno = oerrno;
|
|
}
|
|
return (fd);
|
|
}
|