Rather than trying to shoehorn flags into the requested superblock address, create a separate flags parameter to the ffs_sbget() function in sys/ufs/ffs/ffs_subr.c. The ffs_sbget() function is used both in the kernel and in user-level utilities through export to the sbget() function in the libufs(3) library (see sbget(3) for details). The kernel uses ffs_sbget() when mounting UFS filesystems, in the glabel(8) and gjournal(8) GEOM utilities, and in the standalone library used when booting the system from a UFS root filesystem. The ffs_sbget() function reads the superblock located at the byte offset specified by its sblockloc parameter. The value UFS_STDSB may be specified for sblockloc to request that the standard location for the superblock be read. The two existing options are now flags: UFS_NOHASHFAIL will note if the check hash is wrong but will still return the superblock. This is used by the bootstrap code to give the system a chance to come up so that fsck can be run to correct the problem. UFS_NOMSG indicates that superblock inconsistency error messages should not be printed. It is used by programs like fsck that want to print their own error message and programs like glabel(8) that just want to know if a UFS filesystem exists on a partition. One additional flag is added: UFS_NOCSUM causes only the superblock itself to be returned, but does not read in any auxiliary data structures like the cylinder group summary information. It is used by clients like glabel(8) that just want to check for possible filesystem types. Using UFS_NOCSUM skips the superblock checks for csum data which allows superblocks that have corrupted csum data to be read and used. The validate_sblock() function checks that the superblock has not been corrupted in a way that can crash or hang the system. Unless the UFS_NOMSG flag is specified, it will print out any errors that it finds. Prior to this commit, validate_sblock() returned as soon as it found an inconsistency so would print at most one message. It now does all its checks so when UFS_NOMSG has not been specified will print out everything that it finds inconsistent. Sponsored by: The FreeBSD Foundation
542 lines
15 KiB
C
542 lines
15 KiB
C
/*
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* SPDX-License-Identifier: BSD-3-Clause
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*
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* Copyright (c) 2009 Robert N. M. Watson
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* All rights reserved.
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*
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* This software was developed at the University of Cambridge Computer
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* Laboratory with support from a grant from Google, Inc.
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*
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* Copyright (c) 2002 Networks Associates Technology, Inc.
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* All rights reserved.
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*
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* This software was developed for the FreeBSD Project by Marshall
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* Kirk McKusick and Network Associates Laboratories, the Security
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* Research Division of Network Associates, Inc. under DARPA/SPAWAR
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* contract N66001-01-C-8035 ("CBOSS"), as part of the DARPA CHATS
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* research program.
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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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#ifndef lint
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static const char copyright[] =
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"@(#) 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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#endif
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static const char rcsid[] =
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"$FreeBSD$";
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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 <sys/disklabel.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ffs/fs.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 <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 <unistd.h>
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#define afs disk.d_fs
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#define acg disk.d_cg
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static struct uufsd disk;
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static int dumpfs(const char *, int);
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static int dumpfsid(void);
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static int dumpcg(void);
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static int dumpfreespace(const char *, int);
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static void dumpfreespacecg(int);
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static int marshal(const char *);
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static void pbits(void *, int);
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static void pblklist(void *, int, off_t, int);
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static void ufserr(const char *);
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static void usage(void) __dead2;
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int
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main(int argc, char *argv[])
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{
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const char *name;
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int ch, dofreespace, domarshal, dolabel, dosb, eval;
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dofreespace = domarshal = dolabel = dosb = eval = 0;
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while ((ch = getopt(argc, argv, "lfms")) != -1) {
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switch (ch) {
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case 'f':
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dofreespace++;
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break;
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case 'm':
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domarshal = 1;
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break;
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case 'l':
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dolabel = 1;
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break;
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case 's':
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dosb = 1;
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break;
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case '?':
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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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if (dofreespace && domarshal)
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usage();
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if (dofreespace > 2)
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usage();
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while ((name = *argv++) != NULL) {
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if (ufs_disk_fillout_blank(&disk, name) == -1) {
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ufserr(name);
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eval |= 1;
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continue;
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}
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disk.d_lookupflags |= UFS_NOHASHFAIL;
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if (sbread(&disk) == -1) {
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ufserr(name);
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eval |= 1;
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continue;
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}
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if (dofreespace)
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eval |= dumpfreespace(name, dofreespace);
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else if (domarshal)
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eval |= marshal(name);
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else if (dolabel)
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eval |= dumpfsid();
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else
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eval |= dumpfs(name, dosb);
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ufs_disk_close(&disk);
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}
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exit(eval);
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}
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static int
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dumpfsid(void)
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{
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printf("%sufsid/%08x%08x\n", _PATH_DEV, afs.fs_id[0], afs.fs_id[1]);
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return 0;
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}
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static int
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dumpfs(const char *name, int dosb)
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{
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time_t fstime, fsmtime;
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int64_t fssize;
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int32_t fsflags;
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int i;
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switch (disk.d_ufs) {
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case 2:
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fssize = afs.fs_size;
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fstime = afs.fs_time;
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fsmtime = afs.fs_mtime;
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printf("magic\t%x (UFS2)\n", afs.fs_magic);
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printf("last mounted time\t%s", ctime(&fsmtime));
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printf("last modified time\t%s", ctime(&fstime));
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printf("superblock location\t%jd\tid\t[ %08x %08x ]\n",
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(intmax_t)afs.fs_sblockloc, afs.fs_id[0], afs.fs_id[1]);
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printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
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afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
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break;
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case 1:
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fssize = afs.fs_old_size;
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fstime = afs.fs_old_time;
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printf("magic\t%x (UFS1)\ttime\t%s",
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afs.fs_magic, ctime(&fstime));
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printf("id\t[ %08x %08x ]\n", afs.fs_id[0], afs.fs_id[1]);
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printf("ncg\t%d\tsize\t%jd\tblocks\t%jd\n",
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afs.fs_ncg, (intmax_t)fssize, (intmax_t)afs.fs_dsize);
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break;
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default:
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goto err;
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}
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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("minfree\t%d%%\toptim\t%s\tsymlinklen %d\n",
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afs.fs_minfree, afs.fs_optim == FS_OPTSPACE ? "space" : "time",
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afs.fs_maxsymlinklen);
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switch (disk.d_ufs) {
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case 2:
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printf("%s %d\tmaxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
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"maxbsize", afs.fs_maxbsize, afs.fs_maxbpg,
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afs.fs_maxcontig, afs.fs_contigsumsize);
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printf("nbfree\t%jd\tndir\t%jd\tnifree\t%jd\tnffree\t%jd\n",
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(intmax_t)afs.fs_cstotal.cs_nbfree,
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(intmax_t)afs.fs_cstotal.cs_ndir,
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(intmax_t)afs.fs_cstotal.cs_nifree,
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(intmax_t)afs.fs_cstotal.cs_nffree);
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printf("bpg\t%d\tfpg\t%d\tipg\t%d\tunrefs\t%jd\n",
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afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg,
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(intmax_t)afs.fs_unrefs);
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printf("nindir\t%d\tinopb\t%d\tmaxfilesize\t%ju\n",
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afs.fs_nindir, afs.fs_inopb,
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(uintmax_t)afs.fs_maxfilesize);
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printf("sbsize\t%d\tcgsize\t%d\tcsaddr\t%jd\tcssize\t%d\n",
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afs.fs_sbsize, afs.fs_cgsize, (intmax_t)afs.fs_csaddr,
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afs.fs_cssize);
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break;
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case 1:
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printf("maxbpg\t%d\tmaxcontig %d\tcontigsumsize %d\n",
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afs.fs_maxbpg, afs.fs_maxcontig, afs.fs_contigsumsize);
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printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
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afs.fs_old_cstotal.cs_nbfree, afs.fs_old_cstotal.cs_ndir,
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afs.fs_old_cstotal.cs_nifree, afs.fs_old_cstotal.cs_nffree);
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printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n",
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afs.fs_old_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg,
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afs.fs_ipg);
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printf("nindir\t%d\tinopb\t%d\tnspf\t%d\tmaxfilesize\t%ju\n",
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afs.fs_nindir, afs.fs_inopb, afs.fs_old_nspf,
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(uintmax_t)afs.fs_maxfilesize);
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printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n",
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afs.fs_sbsize, afs.fs_cgsize, afs.fs_old_cgoffset,
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afs.fs_old_cgmask);
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printf("csaddr\t%jd\tcssize\t%d\n",
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(intmax_t)afs.fs_csaddr, afs.fs_cssize);
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printf("rotdelay %dms\trps\t%d\ttrackskew %d\tinterleave %d\n",
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afs.fs_old_rotdelay, afs.fs_old_rps, afs.fs_old_trackskew,
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afs.fs_old_interleave);
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printf("nsect\t%d\tnpsect\t%d\tspc\t%d\n",
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afs.fs_old_nsect, afs.fs_old_npsect, afs.fs_old_spc);
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break;
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default:
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goto err;
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}
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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("cgrotor\t%d\tfmod\t%d\tronly\t%d\tclean\t%d\n",
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afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_clean);
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printf("metaspace %jd\tavgfpdir %d\tavgfilesize %d\n",
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afs.fs_metaspace, afs.fs_avgfpdir, afs.fs_avgfilesize);
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printf("flags\t");
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if (afs.fs_old_flags & FS_FLAGS_UPDATED)
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fsflags = afs.fs_flags;
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else
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fsflags = afs.fs_old_flags;
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if (fsflags == 0)
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printf("none");
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if (fsflags & FS_UNCLEAN)
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printf("unclean ");
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if (fsflags & FS_DOSOFTDEP)
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printf("soft-updates%s ", (fsflags & FS_SUJ) ? "+journal" : "");
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if (fsflags & FS_NEEDSFSCK)
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printf("needs-fsck-run ");
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if (fsflags & FS_INDEXDIRS)
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printf("indexed-directories ");
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if (fsflags & FS_ACLS)
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printf("acls ");
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if (fsflags & FS_MULTILABEL)
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printf("multilabel ");
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if (fsflags & FS_GJOURNAL)
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printf("gjournal ");
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if (fsflags & FS_FLAGS_UPDATED)
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printf("fs_flags-expanded ");
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if (fsflags & FS_NFS4ACLS)
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printf("nfsv4acls ");
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if (fsflags & FS_TRIM)
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printf("trim ");
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fsflags &= ~(FS_UNCLEAN | FS_DOSOFTDEP | FS_NEEDSFSCK | FS_METACKHASH |
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FS_ACLS | FS_MULTILABEL | FS_GJOURNAL | FS_FLAGS_UPDATED |
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FS_NFS4ACLS | FS_SUJ | FS_TRIM | FS_INDEXDIRS);
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if (fsflags != 0)
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printf("unknown-flags (%#x)", fsflags);
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putchar('\n');
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if (afs.fs_flags & FS_METACKHASH) {
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printf("check hashes\t");
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fsflags = afs.fs_metackhash;
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if (fsflags == 0)
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printf("none");
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if (fsflags & CK_SUPERBLOCK)
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printf("superblock ");
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if (fsflags & CK_CYLGRP)
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printf("cylinder-groups ");
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if (fsflags & CK_INODE)
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printf("inodes ");
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if (fsflags & CK_INDIR)
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printf("indirect-blocks ");
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if (fsflags & CK_DIR)
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printf("directories ");
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}
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fsflags &= ~(CK_SUPERBLOCK | CK_CYLGRP | CK_INODE | CK_INDIR | CK_DIR);
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if (fsflags != 0)
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printf("unknown flags (%#x)", fsflags);
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putchar('\n');
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printf("fsmnt\t%s\n", afs.fs_fsmnt);
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printf("volname\t%s\tswuid\t%ju\tprovidersize\t%ju\n",
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afs.fs_volname, (uintmax_t)afs.fs_swuid,
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(uintmax_t)afs.fs_providersize);
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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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printf("\n");
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if (fssize % afs.fs_fpg) {
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if (disk.d_ufs == 1)
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printf("cylinders in last group %d\n",
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howmany(afs.fs_old_size % afs.fs_fpg,
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afs.fs_old_spc / afs.fs_old_nspf));
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printf("blocks in last group %ld\n\n",
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(long)((fssize % afs.fs_fpg) / afs.fs_frag));
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}
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if (dosb)
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return (0);
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while ((i = cgread(&disk)) != 0) {
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if (i == -1 || dumpcg())
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goto err;
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}
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return (0);
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err: ufserr(name);
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return (1);
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}
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static int
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dumpcg(void)
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{
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time_t cgtime;
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off_t cur;
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int i, j;
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printf("\ncg %d:\n", disk.d_lcg);
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cur = fsbtodb(&afs, cgtod(&afs, disk.d_lcg)) * disk.d_bsize;
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switch (disk.d_ufs) {
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case 2:
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cgtime = acg.cg_time;
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printf("magic\t%x\ttell\t%jx\ttime\t%s",
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acg.cg_magic, (intmax_t)cur, ctime(&cgtime));
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printf("cgx\t%d\tndblk\t%d\tniblk\t%d\tinitiblk %d\tunrefs %d\n",
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acg.cg_cgx, acg.cg_ndblk, acg.cg_niblk, acg.cg_initediblk,
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acg.cg_unrefs);
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break;
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case 1:
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cgtime = acg.cg_old_time;
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printf("magic\t%x\ttell\t%jx\ttime\t%s",
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acg.cg_magic, (intmax_t)cur, ctime(&cgtime));
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printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
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acg.cg_cgx, acg.cg_old_ncyl, acg.cg_old_niblk,
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acg.cg_ndblk);
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break;
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|
default:
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break;
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}
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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",
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acg.cg_rotor, acg.cg_irotor, acg.cg_frotor);
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for (i = 1, j = 0; i < afs.fs_frag; i++) {
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printf("\t%d", acg.cg_frsum[i]);
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j += i * acg.cg_frsum[i];
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}
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printf("\nsum of frsum: %d", j);
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if (afs.fs_contigsumsize > 0) {
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for (i = 1; i < afs.fs_contigsumsize; i++) {
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if ((i - 1) % 8 == 0)
|
|
printf("\nclusters %d-%d:", i,
|
|
MIN(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);
|
|
}
|
|
|
|
static int
|
|
dumpfreespace(const char *name, int fflag)
|
|
{
|
|
int i;
|
|
|
|
while ((i = cgread(&disk)) != 0) {
|
|
if (i == -1)
|
|
goto err;
|
|
dumpfreespacecg(fflag);
|
|
}
|
|
return (0);
|
|
err:
|
|
ufserr(name);
|
|
return (1);
|
|
}
|
|
|
|
static void
|
|
dumpfreespacecg(int fflag)
|
|
{
|
|
|
|
pblklist(cg_blksfree(&acg), afs.fs_fpg, disk.d_lcg * afs.fs_fpg,
|
|
fflag);
|
|
}
|
|
|
|
static 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);
|
|
printf("-i %jd ", fragroundup(fs, lblktosize(fs, fragstoblks(fs,
|
|
fs->fs_fpg)) / fs->fs_ipg));
|
|
if (fs->fs_flags & FS_SUJ)
|
|
printf("-j ");
|
|
if (fs->fs_flags & FS_GJOURNAL)
|
|
printf("-J ");
|
|
printf("-k %jd ", fs->fs_metaspace);
|
|
if (fs->fs_flags & FS_MULTILABEL)
|
|
printf("-l ");
|
|
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)fsbtodb(fs, fs->fs_size));
|
|
if (fs->fs_flags & FS_TRIM)
|
|
printf("-t ");
|
|
printf("%s ", disk.d_name);
|
|
printf("\n");
|
|
|
|
return 0;
|
|
}
|
|
|
|
static 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");
|
|
}
|
|
|
|
static void
|
|
pblklist(void *vp, int max, off_t offset, int fflag)
|
|
{
|
|
int i, j;
|
|
char *p;
|
|
|
|
for (i = 0, p = vp; i < max; i++) {
|
|
if (isset(p, i)) {
|
|
printf("%jd", (intmax_t)(i + offset));
|
|
if (fflag < 2) {
|
|
j = i;
|
|
while ((i+1)<max && isset(p, i+1))
|
|
i++;
|
|
if (i != j)
|
|
printf("-%jd", (intmax_t)(i + offset));
|
|
}
|
|
printf("\n");
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
ufserr(const char *name)
|
|
{
|
|
if (disk.d_error != NULL)
|
|
warnx("%s: %s", name, disk.d_error);
|
|
else if (errno)
|
|
warn("%s", name);
|
|
}
|
|
|
|
static void
|
|
usage(void)
|
|
{
|
|
(void)fprintf(stderr, "usage: dumpfs [-flm] filesys | device\n");
|
|
exit(1);
|
|
}
|