426 lines
11 KiB
C
426 lines
11 KiB
C
/*
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* Copyright (c) 1983, 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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* 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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#if 0
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#ifndef lint
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static const char copyright[] =
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"@(#) Copyright (c) 1983, 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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static char sccsid[] = "@(#)tunefs.c 8.2 (Berkeley) 4/19/94";
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#endif /* not lint */
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#endif
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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/*
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* tunefs: change layout parameters to an existing file system.
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*/
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#include <sys/param.h>
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#include <sys/mount.h>
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#include <sys/disklabel.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 <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 <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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/* the optimization warning string template */
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#define OPTWARN "should optimize for %s with minfree %s %d%%"
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struct uufsd disk;
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#define sblock disk.d_fs
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void usage(void);
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void printfs(void);
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int
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main(int argc, char *argv[])
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{
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char *avalue, *Lvalue, *lvalue, *nvalue;
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const char *special, *on;
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const char *name;
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int active;
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int Aflag, aflag, eflag, evalue, fflag, fvalue, Lflag, lflag;
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int mflag, mvalue, nflag, oflag, ovalue, pflag, sflag, svalue;
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int ch, found_arg, i;
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const char *chg[2];
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struct ufs_args args;
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struct statfs stfs;
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if (argc < 3)
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usage();
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Aflag = aflag = eflag = fflag = Lflag = lflag = mflag = 0;
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nflag = oflag = pflag = sflag = 0;
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avalue = Lvalue = lvalue = nvalue = NULL;
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evalue = fvalue = mvalue = ovalue = svalue = 0;
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active = 0;
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found_arg = 0; /* At least one arg is required. */
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while ((ch = getopt(argc, argv, "Aa:e:f:L:l:m:n:o:ps:")) != -1)
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switch (ch) {
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case 'A':
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found_arg = 1;
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Aflag++;
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break;
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case 'a':
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found_arg = 1;
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name = "ACLs";
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avalue = optarg;
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if (strcmp(avalue, "enable") &&
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strcmp(avalue, "disable")) {
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errx(10, "bad %s (options are %s)",
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name, "`enable' or `disable'");
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}
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aflag = 1;
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break;
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case 'e':
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found_arg = 1;
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name = "maximum blocks per file in a cylinder group";
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evalue = atoi(optarg);
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if (evalue < 1)
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errx(10, "%s must be >= 1 (was %s)",
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name, optarg);
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eflag = 1;
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break;
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case 'f':
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found_arg = 1;
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name = "average file size";
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fvalue = atoi(optarg);
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if (fvalue < 1)
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errx(10, "%s must be >= 1 (was %s)",
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name, optarg);
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fflag = 1;
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break;
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case 'L':
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found_arg = 1;
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name = "volume label";
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Lvalue = optarg;
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i = -1;
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while (isalnum(Lvalue[++i]));
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if (Lvalue[i] != '\0') {
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errx(10,
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"bad %s. Valid characters are alphanumerics.",
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name);
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}
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if (strlen(Lvalue) >= MAXVOLLEN) {
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errx(10, "bad %s. Length is longer than %d.",
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name, MAXVOLLEN - 1);
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}
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Lflag = 1;
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break;
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case 'l':
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found_arg = 1;
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name = "multilabel MAC file system";
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lvalue = optarg;
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if (strcmp(lvalue, "enable") &&
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strcmp(lvalue, "disable")) {
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errx(10, "bad %s (options are %s)",
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name, "`enable' or `disable'");
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}
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lflag = 1;
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break;
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case 'm':
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found_arg = 1;
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name = "minimum percentage of free space";
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mvalue = atoi(optarg);
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if (mvalue < 0 || mvalue > 99)
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errx(10, "bad %s (%s)", name, optarg);
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mflag = 1;
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break;
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case 'n':
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found_arg = 1;
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name = "soft updates";
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nvalue = optarg;
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if (strcmp(nvalue, "enable") != 0 &&
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strcmp(nvalue, "disable") != 0) {
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errx(10, "bad %s (options are %s)",
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name, "`enable' or `disable'");
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}
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nflag = 1;
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break;
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case 'o':
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found_arg = 1;
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name = "optimization preference";
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if (strcmp(optarg, "space") == 0)
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ovalue = FS_OPTSPACE;
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else if (strcmp(optarg, "time") == 0)
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ovalue = FS_OPTTIME;
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else
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errx(10,
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"bad %s (options are `space' or `time')",
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name);
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oflag = 1;
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break;
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case 'p':
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found_arg = 1;
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pflag = 1;
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break;
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case 's':
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found_arg = 1;
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name = "expected number of files per directory";
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svalue = atoi(optarg);
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if (svalue < 1)
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errx(10, "%s must be >= 1 (was %s)",
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name, optarg);
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sflag = 1;
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break;
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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 (found_arg == 0 || argc != 1)
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usage();
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on = special = argv[0];
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if (ufs_disk_fillout(&disk, special) == -1)
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goto err;
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if (disk.d_name != special) {
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special = disk.d_name;
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if (statfs(special, &stfs) == 0 &&
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strcmp(special, stfs.f_mntonname) == 0)
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active = 1;
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}
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if (pflag) {
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printfs();
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exit(0);
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}
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if (Lflag) {
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name = "volume label";
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strlcpy(sblock.fs_volname, Lvalue, MAXVOLLEN);
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}
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if (aflag) {
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name = "ACLs";
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if (strcmp(avalue, "enable") == 0) {
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if (sblock.fs_flags & FS_ACLS) {
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warnx("%s remains unchanged as enabled", name);
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} else {
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sblock.fs_flags |= FS_ACLS;
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warnx("%s set", name);
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}
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} else if (strcmp(avalue, "disable") == 0) {
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if ((~sblock.fs_flags & FS_ACLS) ==
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FS_ACLS) {
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warnx("%s remains unchanged as disabled",
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name);
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} else {
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sblock.fs_flags &= ~FS_ACLS;
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warnx("%s cleared", name);
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}
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}
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}
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if (eflag) {
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name = "maximum blocks per file in a cylinder group";
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if (sblock.fs_maxbpg == evalue)
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warnx("%s remains unchanged as %d", name, evalue);
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else {
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warnx("%s changes from %d to %d",
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name, sblock.fs_maxbpg, evalue);
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sblock.fs_maxbpg = evalue;
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}
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}
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if (fflag) {
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name = "average file size";
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if (sblock.fs_avgfilesize == fvalue) {
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warnx("%s remains unchanged as %d", name, fvalue);
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}
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else {
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warnx("%s changes from %d to %d",
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name, sblock.fs_avgfilesize, fvalue);
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sblock.fs_avgfilesize = fvalue;
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}
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}
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if (lflag) {
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name = "multilabel";
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if (strcmp(lvalue, "enable") == 0) {
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if (sblock.fs_flags & FS_MULTILABEL) {
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warnx("%s remains unchanged as enabled", name);
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} else {
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sblock.fs_flags |= FS_MULTILABEL;
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warnx("%s set", name);
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}
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} else if (strcmp(lvalue, "disable") == 0) {
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if ((~sblock.fs_flags & FS_MULTILABEL) ==
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FS_MULTILABEL) {
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warnx("%s remains unchanged as disabled",
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name);
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} else {
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sblock.fs_flags &= ~FS_MULTILABEL;
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warnx("%s cleared", name);
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}
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}
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}
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if (mflag) {
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name = "minimum percentage of free space";
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if (sblock.fs_minfree == mvalue)
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warnx("%s remains unchanged as %d%%", name, mvalue);
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else {
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warnx("%s changes from %d%% to %d%%",
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name, sblock.fs_minfree, mvalue);
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sblock.fs_minfree = mvalue;
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if (mvalue >= MINFREE && sblock.fs_optim == FS_OPTSPACE)
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warnx(OPTWARN, "time", ">=", MINFREE);
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if (mvalue < MINFREE && sblock.fs_optim == FS_OPTTIME)
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warnx(OPTWARN, "space", "<", MINFREE);
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}
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}
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if (nflag) {
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name = "soft updates";
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if (strcmp(nvalue, "enable") == 0) {
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if (sblock.fs_flags & FS_DOSOFTDEP)
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warnx("%s remains unchanged as enabled", name);
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else if (sblock.fs_clean == 0) {
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warnx("%s cannot be enabled until fsck is run",
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name);
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} else {
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sblock.fs_flags |= FS_DOSOFTDEP;
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warnx("%s set", name);
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}
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} else if (strcmp(nvalue, "disable") == 0) {
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if ((~sblock.fs_flags & FS_DOSOFTDEP) == FS_DOSOFTDEP)
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warnx("%s remains unchanged as disabled", name);
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else {
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sblock.fs_flags &= ~FS_DOSOFTDEP;
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warnx("%s cleared", name);
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}
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}
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}
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if (oflag) {
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name = "optimization preference";
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chg[FS_OPTSPACE] = "space";
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chg[FS_OPTTIME] = "time";
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if (sblock.fs_optim == ovalue)
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warnx("%s remains unchanged as %s", name, chg[ovalue]);
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else {
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warnx("%s changes from %s to %s",
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name, chg[sblock.fs_optim], chg[ovalue]);
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sblock.fs_optim = ovalue;
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if (sblock.fs_minfree >= MINFREE &&
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ovalue == FS_OPTSPACE)
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warnx(OPTWARN, "time", ">=", MINFREE);
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if (sblock.fs_minfree < MINFREE && ovalue == FS_OPTTIME)
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warnx(OPTWARN, "space", "<", MINFREE);
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}
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}
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if (sflag) {
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name = "expected number of files per directory";
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if (sblock.fs_avgfpdir == svalue) {
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warnx("%s remains unchanged as %d", name, svalue);
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}
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else {
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warnx("%s changes from %d to %d",
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name, sblock.fs_avgfpdir, svalue);
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sblock.fs_avgfpdir = svalue;
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}
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}
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if (sbwrite(&disk, Aflag) == -1)
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goto err;
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ufs_disk_close(&disk);
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if (active) {
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bzero(&args, sizeof(args));
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if (mount("ufs", on,
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stfs.f_flags | MNT_UPDATE | MNT_RELOAD, &args) < 0)
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err(9, "%s: reload", special);
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warnx("file system reloaded");
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}
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exit(0);
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err:
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if (disk.d_error != NULL)
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errx(11, "%s: %s", special, disk.d_error);
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else
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err(12, "%s", special);
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}
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void
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usage(void)
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{
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fprintf(stderr, "%s\n%s\n%s\n%s\n",
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"usage: tunefs [-A] [-a enable | disable] [-e maxbpg] [-f avgfilesize]",
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" [-L volname] [-l enable | disable] [-m minfree]",
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" [-n enable | disable] [-o space | time] [-p]",
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" [-s avgfpdir] special | filesystem");
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exit(2);
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}
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void
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printfs(void)
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{
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warnx("ACLs: (-a) %s",
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(sblock.fs_flags & FS_ACLS)? "enabled" : "disabled");
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warnx("MAC multilabel: (-l) %s",
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(sblock.fs_flags & FS_MULTILABEL)? "enabled" : "disabled");
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warnx("soft updates: (-n) %s",
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(sblock.fs_flags & FS_DOSOFTDEP)? "enabled" : "disabled");
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warnx("maximum blocks per file in a cylinder group: (-e) %d",
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sblock.fs_maxbpg);
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warnx("average file size: (-f) %d",
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sblock.fs_avgfilesize);
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warnx("average number of files in a directory: (-s) %d",
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sblock.fs_avgfpdir);
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warnx("minimum percentage of free space: (-m) %d%%",
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sblock.fs_minfree);
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warnx("optimization preference: (-o) %s",
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sblock.fs_optim == FS_OPTSPACE ? "space" : "time");
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if (sblock.fs_minfree >= MINFREE &&
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sblock.fs_optim == FS_OPTSPACE)
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warnx(OPTWARN, "time", ">=", MINFREE);
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if (sblock.fs_minfree < MINFREE &&
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sblock.fs_optim == FS_OPTTIME)
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warnx(OPTWARN, "space", "<", MINFREE);
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warnx("volume label: (-L) %s",
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sblock.fs_volname);
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}
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