647 lines
18 KiB
C
647 lines
18 KiB
C
/*
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* Copyright (c) 2000 Christoph Herrmann, Thomas-Henning von Kamptz
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* Copyright (c) 1980, 1989, 1993 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Christoph Herrmann and Thomas-Henning von Kamptz, Munich and Frankfurt.
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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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgment:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors, as well as Christoph
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* Herrmann and Thomas-Henning von Kamptz.
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* 4. 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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* $TSHeader: src/sbin/ffsinfo/ffsinfo.c,v 1.4 2000/12/12 19:30:55 tomsoft Exp $
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*
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*/
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 2000 Christoph Herrmann, Thomas-Henning von Kamptz\n\
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Copyright (c) 1980, 1989, 1993 The Regents of the University of California.\n\
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All rights reserved.\n";
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#endif /* not lint */
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#ifndef lint
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static const char rcsid[] =
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"$FreeBSD$";
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#endif /* not lint */
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/* ********************************************************** INCLUDES ***** */
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#include <sys/param.h>
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#include <sys/disklabel.h>
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#include <sys/mount.h>
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#include <sys/stat.h>
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#include <ufs/ufs/ufsmount.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ffs/fs.h>
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#include <ctype.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 <libufs.h>
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#include <paths.h>
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#include <stdint.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 "debug.h"
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/* *********************************************************** GLOBALS ***** */
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#ifdef FS_DEBUG
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int _dbg_lvl_ = (DL_INFO); /* DL_TRC */
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#endif /* FS_DEBUG */
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static struct uufsd disk;
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#define sblock disk.d_fs
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#define acg disk.d_cg
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static union {
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struct fs fs;
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char pad[SBLOCKSIZE];
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} fsun;
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#define osblock fsun.fs
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static char i1blk[MAXBSIZE];
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static char i2blk[MAXBSIZE];
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static char i3blk[MAXBSIZE];
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static struct csum *fscs;
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/* ******************************************************** PROTOTYPES ***** */
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static void usage(void);
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static void dump_whole_ufs1_inode(ino_t, int);
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static void dump_whole_ufs2_inode(ino_t, int);
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#define DUMP_WHOLE_INODE(A,B) \
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( disk.d_ufs == 1 \
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? dump_whole_ufs1_inode((A),(B)) : dump_whole_ufs2_inode((A),(B)) )
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/* ************************************************************** main ***** */
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/*
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* ffsinfo(8) is a tool to dump all metadata of a file system. It helps to find
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* errors is the file system much easier. You can run ffsinfo before and after
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* an fsck(8), and compare the two ascii dumps easy with diff, and you see
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* directly where the problem is. You can control how much detail you want to
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* see with some command line arguments. You can also easy check the status
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* of a file system, like is there is enough space for growing a file system,
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* or how many active snapshots do we have. It provides much more detailed
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* information then dumpfs. Snapshots, as they are very new, are not really
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* supported. They are just mentioned currently, but it is planned to run
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* also over active snapshots, to even get that output.
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*/
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int
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main(int argc, char **argv)
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{
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DBG_FUNC("main")
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char *device, *special;
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int ch;
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size_t len;
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struct stat st;
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struct csum *dbg_csp;
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int dbg_csc;
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char dbg_line[80];
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int cylno,i;
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int cfg_cg, cfg_in, cfg_lv;
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int cg_start, cg_stop;
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ino_t in;
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char *out_file;
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DBG_ENTER;
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cfg_lv = 0xff;
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cfg_in = -2;
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cfg_cg = -2;
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out_file = strdup("-");
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while ((ch = getopt(argc, argv, "g:i:l:o:")) != -1) {
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switch (ch) {
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case 'g':
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cfg_cg = strtol(optarg, NULL, 0);
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if (errno == EINVAL || errno == ERANGE)
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err(1, "%s", optarg);
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if (cfg_cg < -1)
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usage();
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break;
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case 'i':
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cfg_in = strtol(optarg, NULL, 0);
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if (errno == EINVAL || errno == ERANGE)
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err(1, "%s", optarg);
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if (cfg_in < 0)
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usage();
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break;
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case 'l':
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cfg_lv = strtol(optarg, NULL, 0);
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if (errno == EINVAL||errno == ERANGE)
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err(1, "%s", optarg);
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if (cfg_lv < 0x1 || cfg_lv > 0x3ff)
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usage();
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break;
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case 'o':
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free(out_file);
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out_file = strdup(optarg);
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if (out_file == NULL)
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errx(1, "strdup failed");
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break;
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case '?':
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/* FALLTHROUGH */
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default:
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usage();
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}
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}
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argc -= optind;
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argv += optind;
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if (argc != 1)
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usage();
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device = *argv;
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/*
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* Now we try to guess the (raw)device name.
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*/
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if (0 == strrchr(device, '/') && stat(device, &st) == -1) {
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/*-
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* No path prefix was given, so try in this order:
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* /dev/r%s
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* /dev/%s
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* /dev/vinum/r%s
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* /dev/vinum/%s.
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*
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* FreeBSD now doesn't distinguish between raw and block
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* devices any longer, but it should still work this way.
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*/
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len = strlen(device) + strlen(_PATH_DEV) + 2 + strlen("vinum/");
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special = (char *)malloc(len);
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if (special == NULL)
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errx(1, "malloc failed");
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snprintf(special, len, "%sr%s", _PATH_DEV, device);
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if (stat(special, &st) == -1) {
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snprintf(special, len, "%s%s", _PATH_DEV, device);
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if (stat(special, &st) == -1) {
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snprintf(special, len, "%svinum/r%s",
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_PATH_DEV, device);
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if (stat(special, &st) == -1)
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/* For now this is the 'last resort' */
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snprintf(special, len, "%svinum/%s",
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_PATH_DEV, device);
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}
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}
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device = special;
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}
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if (ufs_disk_fillout(&disk, device) == -1)
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err(1, "ufs_disk_fillout(%s) failed: %s", device, disk.d_error);
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DBG_OPEN(out_file); /* already here we need a superblock */
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if (cfg_lv & 0x001)
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DBG_DUMP_FS(&sblock, "primary sblock");
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/* Determine here what cylinder groups to dump */
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if (cfg_cg==-2) {
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cg_start = 0;
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cg_stop = sblock.fs_ncg;
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} else if (cfg_cg == -1) {
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cg_start = sblock.fs_ncg - 1;
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cg_stop = sblock.fs_ncg;
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} else if (cfg_cg < sblock.fs_ncg) {
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cg_start = cfg_cg;
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cg_stop = cfg_cg + 1;
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} else {
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cg_start = sblock.fs_ncg;
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cg_stop = sblock.fs_ncg;
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}
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if (cfg_lv & 0x004) {
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fscs = (struct csum *)calloc((size_t)1,
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(size_t)sblock.fs_cssize);
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if (fscs == NULL)
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errx(1, "calloc failed");
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/* get the cylinder summary into the memory ... */
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for (i = 0; i < sblock.fs_cssize; i += sblock.fs_bsize) {
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if (bread(&disk, fsbtodb(&sblock,
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sblock.fs_csaddr + numfrags(&sblock, i)),
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(void *)(((char *)fscs)+i),
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(size_t)(sblock.fs_cssize-i < sblock.fs_bsize ?
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sblock.fs_cssize - i : sblock.fs_bsize)) == -1)
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err(1, "bread: %s", disk.d_error);
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}
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dbg_csp = fscs;
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/* ... and dump it */
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for(dbg_csc=0; dbg_csc<sblock.fs_ncg; dbg_csc++) {
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snprintf(dbg_line, sizeof(dbg_line),
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"%d. csum in fscs", dbg_csc);
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DBG_DUMP_CSUM(&sblock,
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dbg_line,
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dbg_csp++);
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}
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}
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if (cfg_lv & 0xf8) {
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/* for each requested cylinder group ... */
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for (cylno = cg_start; cylno < cg_stop; cylno++) {
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snprintf(dbg_line, sizeof(dbg_line), "cgr %d", cylno);
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if (cfg_lv & 0x002) {
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/* dump the superblock copies */
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if (bread(&disk, fsbtodb(&sblock,
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cgsblock(&sblock, cylno)),
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(void *)&osblock, SBLOCKSIZE) == -1)
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err(1, "bread: %s", disk.d_error);
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DBG_DUMP_FS(&osblock, dbg_line);
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}
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/*
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* Read the cylinder group and dump whatever was
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* requested.
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*/
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if (bread(&disk, fsbtodb(&sblock,
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cgtod(&sblock, cylno)), (void *)&acg,
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(size_t)sblock.fs_cgsize) == -1)
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err(1, "bread: %s", disk.d_error);
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if (cfg_lv & 0x008)
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DBG_DUMP_CG(&sblock, dbg_line, &acg);
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if (cfg_lv & 0x010)
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DBG_DUMP_INMAP(&sblock, dbg_line, &acg);
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if (cfg_lv & 0x020)
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DBG_DUMP_FRMAP(&sblock, dbg_line, &acg);
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if (cfg_lv & 0x040) {
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DBG_DUMP_CLMAP(&sblock, dbg_line, &acg);
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DBG_DUMP_CLSUM(&sblock, dbg_line, &acg);
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}
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#ifdef NOT_CURRENTLY
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/*
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* See the comment in sbin/growfs/debug.c for why this
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* is currently disabled, and what needs to be done to
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* re-enable it.
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*/
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if (disk.d_ufs == 1 && cfg_lv & 0x080)
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DBG_DUMP_SPTBL(&sblock, dbg_line, &acg);
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#endif
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}
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}
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if (cfg_lv & 0x300) {
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/* Dump the requested inode(s) */
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if (cfg_in != -2)
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DUMP_WHOLE_INODE((ino_t)cfg_in, cfg_lv);
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else {
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for (in = cg_start * sblock.fs_ipg;
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in < (ino_t)cg_stop * sblock.fs_ipg;
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in++)
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DUMP_WHOLE_INODE(in, cfg_lv);
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}
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}
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DBG_CLOSE;
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DBG_LEAVE;
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return 0;
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}
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/* ********************************************** dump_whole_ufs1_inode ***** */
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/*
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* Here we dump a list of all blocks allocated by this inode. We follow
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* all indirect blocks.
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*/
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void
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dump_whole_ufs1_inode(ino_t inode, int level)
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{
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DBG_FUNC("dump_whole_ufs1_inode")
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struct ufs1_dinode *ino;
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int rb, mode;
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unsigned int ind2ctr, ind3ctr;
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ufs1_daddr_t *ind2ptr, *ind3ptr;
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char comment[80];
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DBG_ENTER;
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/*
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* Read the inode from disk/cache.
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*/
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if (getino(&disk, (void **)&ino, inode, &mode) == -1)
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err(1, "getino: %s", disk.d_error);
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if(ino->di_nlink==0) {
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DBG_LEAVE;
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return; /* inode not in use */
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}
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/*
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* Dump the main inode structure.
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*/
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snprintf(comment, sizeof(comment), "Inode 0x%08jx", (uintmax_t)inode);
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if (level & 0x100) {
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DBG_DUMP_INO(&sblock,
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comment,
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ino);
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}
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if (!(level & 0x200)) {
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DBG_LEAVE;
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return;
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}
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/*
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* Ok, now prepare for dumping all direct and indirect pointers.
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*/
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rb=howmany(ino->di_size, sblock.fs_bsize)-NDADDR;
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if(rb>0) {
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/*
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* Dump single indirect block.
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*/
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if (bread(&disk, fsbtodb(&sblock, ino->di_ib[0]), (void *)&i1blk,
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(size_t)sblock.fs_bsize) == -1) {
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err(1, "bread: %s", disk.d_error);
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}
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snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 0",
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(uintmax_t)inode);
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DBG_DUMP_IBLK(&sblock,
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comment,
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i1blk,
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(size_t)rb);
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rb-=howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t));
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}
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if(rb>0) {
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/*
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* Dump double indirect blocks.
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*/
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if (bread(&disk, fsbtodb(&sblock, ino->di_ib[1]), (void *)&i2blk,
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(size_t)sblock.fs_bsize) == -1) {
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err(1, "bread: %s", disk.d_error);
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}
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snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 1",
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(uintmax_t)inode);
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DBG_DUMP_IBLK(&sblock,
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comment,
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i2blk,
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howmany(rb, howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t))));
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for(ind2ctr=0; ((ind2ctr < howmany(sblock.fs_bsize,
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sizeof(ufs1_daddr_t))) && (rb>0)); ind2ctr++) {
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ind2ptr=&((ufs1_daddr_t *)(void *)&i2blk)[ind2ctr];
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if (bread(&disk, fsbtodb(&sblock, *ind2ptr), (void *)&i1blk,
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(size_t)sblock.fs_bsize) == -1) {
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err(1, "bread: %s", disk.d_error);
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}
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snprintf(comment, sizeof(comment),
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"Inode 0x%08jx: indirect 1->%d", (uintmax_t)inode,
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ind2ctr);
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DBG_DUMP_IBLK(&sblock,
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comment,
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i1blk,
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(size_t)rb);
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rb-=howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t));
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}
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}
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if(rb>0) {
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/*
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* Dump triple indirect blocks.
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*/
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if (bread(&disk, fsbtodb(&sblock, ino->di_ib[2]), (void *)&i3blk,
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(size_t)sblock.fs_bsize) == -1) {
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err(1, "bread: %s", disk.d_error);
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}
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snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 2",
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(uintmax_t)inode);
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#define SQUARE(a) ((a)*(a))
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DBG_DUMP_IBLK(&sblock,
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comment,
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i3blk,
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howmany(rb,
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SQUARE(howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t)))));
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#undef SQUARE
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for(ind3ctr=0; ((ind3ctr<howmany(sblock.fs_bsize,
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sizeof(ufs1_daddr_t)))&&(rb>0)); ind3ctr++) {
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ind3ptr=&((ufs1_daddr_t *)(void *)&i3blk)[ind3ctr];
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if (bread(&disk, fsbtodb(&sblock, *ind3ptr), (void *)&i2blk,
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(size_t)sblock.fs_bsize) == -1) {
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err(1, "bread: %s", disk.d_error);
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}
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snprintf(comment, sizeof(comment),
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"Inode 0x%08jx: indirect 2->%d", (uintmax_t)inode,
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ind3ctr);
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DBG_DUMP_IBLK(&sblock,
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comment,
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i2blk,
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howmany(rb,
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howmany(sblock.fs_bsize, sizeof(ufs1_daddr_t))));
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for(ind2ctr=0; ((ind2ctr < howmany(sblock.fs_bsize,
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sizeof(ufs1_daddr_t)))&&(rb>0)); ind2ctr++) {
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ind2ptr=&((ufs1_daddr_t *)(void *)&i2blk)
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[ind2ctr];
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if (bread(&disk, fsbtodb(&sblock, *ind2ptr),
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(void *)&i1blk, (size_t)sblock.fs_bsize)
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== -1) {
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err(1, "bread: %s", disk.d_error);
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}
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snprintf(comment, sizeof(comment),
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"Inode 0x%08jx: indirect 2->%d->%d",
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(uintmax_t)inode, ind3ctr, ind3ctr);
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DBG_DUMP_IBLK(&sblock,
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comment,
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|
i1blk,
|
|
(size_t)rb);
|
|
rb-=howmany(sblock.fs_bsize,
|
|
sizeof(ufs1_daddr_t));
|
|
}
|
|
}
|
|
}
|
|
|
|
DBG_LEAVE;
|
|
return;
|
|
}
|
|
|
|
/* ********************************************** dump_whole_ufs2_inode ***** */
|
|
/*
|
|
* Here we dump a list of all blocks allocated by this inode. We follow
|
|
* all indirect blocks.
|
|
*/
|
|
void
|
|
dump_whole_ufs2_inode(ino_t inode, int level)
|
|
{
|
|
DBG_FUNC("dump_whole_ufs2_inode")
|
|
struct ufs2_dinode *ino;
|
|
int rb, mode;
|
|
unsigned int ind2ctr, ind3ctr;
|
|
ufs2_daddr_t *ind2ptr, *ind3ptr;
|
|
char comment[80];
|
|
|
|
DBG_ENTER;
|
|
|
|
/*
|
|
* Read the inode from disk/cache.
|
|
*/
|
|
if (getino(&disk, (void **)&ino, inode, &mode) == -1)
|
|
err(1, "getino: %s", disk.d_error);
|
|
|
|
if (ino->di_nlink == 0) {
|
|
DBG_LEAVE;
|
|
return; /* inode not in use */
|
|
}
|
|
|
|
/*
|
|
* Dump the main inode structure.
|
|
*/
|
|
snprintf(comment, sizeof(comment), "Inode 0x%08jx", (uintmax_t)inode);
|
|
if (level & 0x100) {
|
|
DBG_DUMP_INO(&sblock, comment, ino);
|
|
}
|
|
|
|
if (!(level & 0x200)) {
|
|
DBG_LEAVE;
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Ok, now prepare for dumping all direct and indirect pointers.
|
|
*/
|
|
rb = howmany(ino->di_size, sblock.fs_bsize) - NDADDR;
|
|
if (rb > 0) {
|
|
/*
|
|
* Dump single indirect block.
|
|
*/
|
|
if (bread(&disk, fsbtodb(&sblock, ino->di_ib[0]), (void *)&i1blk,
|
|
(size_t)sblock.fs_bsize) == -1) {
|
|
err(1, "bread: %s", disk.d_error);
|
|
}
|
|
snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 0",
|
|
(uintmax_t)inode);
|
|
DBG_DUMP_IBLK(&sblock, comment, i1blk, (size_t)rb);
|
|
rb -= howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t));
|
|
}
|
|
if (rb > 0) {
|
|
/*
|
|
* Dump double indirect blocks.
|
|
*/
|
|
if (bread(&disk, fsbtodb(&sblock, ino->di_ib[1]), (void *)&i2blk,
|
|
(size_t)sblock.fs_bsize) == -1) {
|
|
err(1, "bread: %s", disk.d_error);
|
|
}
|
|
snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 1",
|
|
(uintmax_t)inode);
|
|
DBG_DUMP_IBLK(&sblock,
|
|
comment,
|
|
i2blk,
|
|
howmany(rb, howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t))));
|
|
for (ind2ctr = 0; ((ind2ctr < howmany(sblock.fs_bsize,
|
|
sizeof(ufs2_daddr_t))) && (rb>0)); ind2ctr++) {
|
|
ind2ptr = &((ufs2_daddr_t *)(void *)&i2blk)[ind2ctr];
|
|
|
|
if (bread(&disk, fsbtodb(&sblock, *ind2ptr), (void *)&i1blk,
|
|
(size_t)sblock.fs_bsize) == -1) {
|
|
err(1, "bread: %s", disk.d_error);
|
|
}
|
|
snprintf(comment, sizeof(comment),
|
|
"Inode 0x%08jx: indirect 1->%d",
|
|
(uintmax_t)inode, ind2ctr);
|
|
DBG_DUMP_IBLK(&sblock, comment, i1blk, (size_t)rb);
|
|
rb -= howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t));
|
|
}
|
|
}
|
|
if (rb > 0) {
|
|
/*
|
|
* Dump triple indirect blocks.
|
|
*/
|
|
if (bread(&disk, fsbtodb(&sblock, ino->di_ib[2]), (void *)&i3blk,
|
|
(size_t)sblock.fs_bsize) == -1) {
|
|
err(1, "bread: %s", disk.d_error);
|
|
}
|
|
snprintf(comment, sizeof(comment), "Inode 0x%08jx: indirect 2",
|
|
(uintmax_t)inode);
|
|
#define SQUARE(a) ((a)*(a))
|
|
DBG_DUMP_IBLK(&sblock,
|
|
comment,
|
|
i3blk,
|
|
howmany(rb,
|
|
SQUARE(howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t)))));
|
|
#undef SQUARE
|
|
for (ind3ctr = 0; ((ind3ctr < howmany(sblock.fs_bsize,
|
|
sizeof(ufs2_daddr_t))) && (rb > 0)); ind3ctr++) {
|
|
ind3ptr = &((ufs2_daddr_t *)(void *)&i3blk)[ind3ctr];
|
|
|
|
if (bread(&disk, fsbtodb(&sblock, *ind3ptr), (void *)&i2blk,
|
|
(size_t)sblock.fs_bsize) == -1) {
|
|
err(1, "bread: %s", disk.d_error);
|
|
}
|
|
snprintf(comment, sizeof(comment),
|
|
"Inode 0x%08jx: indirect 2->%d",
|
|
(uintmax_t)inode, ind3ctr);
|
|
DBG_DUMP_IBLK(&sblock,
|
|
comment,
|
|
i2blk,
|
|
howmany(rb,
|
|
howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t))));
|
|
for (ind2ctr = 0; ((ind2ctr < howmany(sblock.fs_bsize,
|
|
sizeof(ufs2_daddr_t))) && (rb > 0)); ind2ctr++) {
|
|
ind2ptr = &((ufs2_daddr_t *)(void *)&i2blk) [ind2ctr];
|
|
if (bread(&disk, fsbtodb(&sblock, *ind2ptr), (void *)&i1blk,
|
|
(size_t)sblock.fs_bsize) == -1) {
|
|
err(1, "bread: %s", disk.d_error);
|
|
}
|
|
snprintf(comment, sizeof(comment),
|
|
"Inode 0x%08jx: indirect 2->%d->%d",
|
|
(uintmax_t)inode, ind3ctr, ind3ctr);
|
|
DBG_DUMP_IBLK(&sblock, comment, i1blk, (size_t)rb);
|
|
rb -= howmany(sblock.fs_bsize, sizeof(ufs2_daddr_t));
|
|
}
|
|
}
|
|
}
|
|
|
|
DBG_LEAVE;
|
|
return;
|
|
}
|
|
|
|
/* ************************************************************* usage ***** */
|
|
/*
|
|
* Dump a line of usage.
|
|
*/
|
|
void
|
|
usage(void)
|
|
{
|
|
DBG_FUNC("usage")
|
|
|
|
DBG_ENTER;
|
|
|
|
fprintf(stderr,
|
|
"usage: ffsinfo [-g cylinder_group] [-i inode] [-l level] "
|
|
"[-o outfile]\n"
|
|
" special | file\n");
|
|
|
|
DBG_LEAVE;
|
|
exit(1);
|
|
}
|