42614ed3f3
64 bit block pointers, extended attribute storage, and a few other things. This commit does not yet include the code to manipulate the extended storage (for e.g. ACLs), this will be done later. Originally written by Kirk McKusick and Network Associates Laboratories for FreeBSD.
412 lines
9.4 KiB
C
412 lines
9.4 KiB
C
/* $NetBSD: main.c,v 1.45 2003/04/02 10:39:26 fvdl Exp $ */
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/*
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* Copyright (c) 1980, 1986, 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. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the University of
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* California, Berkeley and its contributors.
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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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#include <sys/cdefs.h>
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#ifndef lint
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__COPYRIGHT("@(#) Copyright (c) 1980, 1986, 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[] = "@(#)main.c 8.6 (Berkeley) 5/14/95";
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#else
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__RCSID("$NetBSD: main.c,v 1.45 2003/04/02 10:39:26 fvdl Exp $");
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#endif
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#endif /* not lint */
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#include <sys/param.h>
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#include <sys/time.h>
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#include <sys/mount.h>
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#include <sys/resource.h>
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#include <ufs/ufs/dinode.h>
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#include <ufs/ufs/ufsmount.h>
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#include <ufs/ffs/fs.h>
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#include <ufs/ffs/ffs_extern.h>
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#include <ctype.h>
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#include <err.h>
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#include <fstab.h>
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#include <string.h>
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#include <time.h>
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#include <ctype.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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#include "fsck.h"
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#include "extern.h"
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#include "fsutil.h"
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int returntosingle;
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int main __P((int, char *[]));
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static int argtoi __P((int, char *, char *, int));
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static int checkfilesys __P((const char *, char *, long, int));
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static void usage __P((void));
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int
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main(argc, argv)
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int argc;
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char *argv[];
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{
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struct rlimit r;
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int ch;
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int ret = 0;
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if (getrlimit(RLIMIT_DATA, &r) == 0) {
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r.rlim_cur = r.rlim_max;
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(void) setrlimit(RLIMIT_DATA, &r);
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}
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sync();
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skipclean = 1;
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markclean = 1;
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forceimage = 0;
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endian = 0;
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isappleufs = 0;
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while ((ch = getopt(argc, argv, "aB:b:c:dFfm:npy")) != -1) {
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switch (ch) {
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case 'a':
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isappleufs = 1;
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break;
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case 'B':
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if (strcmp(optarg, "be") == 0)
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endian = BIG_ENDIAN;
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else if (strcmp(optarg, "le") == 0)
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endian = LITTLE_ENDIAN;
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else usage();
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break;
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case 'b':
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skipclean = 0;
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bflag = argtoi('b', "number", optarg, 10);
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printf("Alternate super block location: %d\n", bflag);
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break;
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case 'c':
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skipclean = 0;
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cvtlevel = argtoi('c', "conversion level", optarg, 10);
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break;
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case 'd':
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debug++;
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break;
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case 'F':
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forceimage = 1;
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break;
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case 'f':
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skipclean = 0;
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break;
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case 'm':
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lfmode = argtoi('m', "mode", optarg, 8);
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if (lfmode &~ 07777)
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errx(EEXIT, "bad mode to -m: %o", lfmode);
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printf("** lost+found creation mode %o\n", lfmode);
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break;
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case 'n':
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nflag++;
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yflag = 0;
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break;
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case 'p':
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preen++;
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break;
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case 'y':
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yflag++;
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nflag = 0;
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break;
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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)
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usage();
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if (signal(SIGINT, SIG_IGN) != SIG_IGN)
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(void)signal(SIGINT, catch);
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if (preen)
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(void)signal(SIGQUIT, catchquit);
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signal(SIGINFO, infohandler);
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while (argc-- > 0) {
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const char *path = blockcheck(*argv);
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if (path == NULL)
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pfatal("Can't check %s\n", *argv);
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else
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(void)checkfilesys(blockcheck(*argv), 0, 0L, 0);
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argv++;
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}
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if (returntosingle)
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ret = 2;
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exit(ret);
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}
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static int
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argtoi(flag, req, str, base)
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int flag;
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char *req, *str;
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int base;
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{
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char *cp;
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int ret;
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ret = (int)strtol(str, &cp, base);
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if (cp == str || *cp)
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errx(EEXIT, "-%c flag requires a %s", flag, req);
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return (ret);
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}
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/*
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* Check the specified filesystem.
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*/
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/* ARGSUSED */
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static int
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checkfilesys(filesys, mntpt, auxdata, child)
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const char *filesys;
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char *mntpt;
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long auxdata;
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int child;
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{
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daddr_t n_ffree, n_bfree;
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struct dups *dp;
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struct zlncnt *zlnp;
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int cylno;
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#ifdef LITE2BORKEN
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int flags;
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#endif
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if (preen && child)
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(void)signal(SIGQUIT, voidquit);
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setcdevname(filesys, preen);
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if (debug && preen)
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pwarn("starting\n");
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switch (setup(filesys)) {
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case 0:
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if (preen)
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pfatal("CAN'T CHECK FILE SYSTEM.");
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/* fall through */
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case -1:
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return (0);
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}
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/*
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* Cleared if any questions answered no. Used to decide if
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* the superblock should be marked clean.
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*/
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resolved = 1;
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/*
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* 1: scan inodes tallying blocks used
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*/
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if (preen == 0) {
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printf("** Last Mounted on %s\n", sblock->fs_fsmnt);
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if (hotroot())
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printf("** Root file system\n");
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printf("** Phase 1 - Check Blocks and Sizes\n");
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}
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pass1();
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/*
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* 1b: locate first references to duplicates, if any
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*/
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if (duplist) {
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if (preen)
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pfatal("INTERNAL ERROR: dups with -p\n");
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if (usedsoftdep)
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pfatal("INTERNAL ERROR: dups with softdep\n");
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printf("** Phase 1b - Rescan For More DUPS\n");
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pass1b();
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}
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/*
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* 2: traverse directories from root to mark all connected directories
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*/
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if (preen == 0)
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printf("** Phase 2 - Check Pathnames\n");
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pass2();
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/*
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* 3: scan inodes looking for disconnected directories
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*/
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if (preen == 0)
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printf("** Phase 3 - Check Connectivity\n");
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pass3();
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/*
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* 4: scan inodes looking for disconnected files; check reference counts
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*/
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if (preen == 0)
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printf("** Phase 4 - Check Reference Counts\n");
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pass4();
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/*
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* 5: check and repair resource counts in cylinder groups
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*/
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if (preen == 0)
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printf("** Phase 5 - Check Cyl groups\n");
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pass5();
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/*
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* print out summary statistics
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*/
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n_ffree = sblock->fs_cstotal.cs_nffree;
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n_bfree = sblock->fs_cstotal.cs_nbfree;
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pwarn("%d files, %lld used, %lld free ",
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n_files, (long long)n_blks,
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(long long)(n_ffree + sblock->fs_frag * n_bfree));
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printf("(%lld frags, %lld blocks, %lld.%lld%% fragmentation)\n",
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(long long)n_ffree, (long long)n_bfree,
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(long long)(n_ffree * 100 / (daddr_t)sblock->fs_dsize),
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(long long)(((n_ffree * 1000 + (daddr_t)sblock->fs_dsize / 2)
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/ (daddr_t)sblock->fs_dsize) % 10));
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if (debug &&
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(n_files -= maxino - ROOTINO - sblock->fs_cstotal.cs_nifree))
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printf("%d files missing\n", n_files);
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if (debug) {
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n_blks += sblock->fs_ncg *
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(cgdmin(sblock, 0) - cgsblock(sblock, 0));
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n_blks += cgsblock(sblock, 0) - cgbase(sblock, 0);
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n_blks += howmany(sblock->fs_cssize, sblock->fs_fsize);
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if (n_blks -= maxfsblock - (n_ffree + sblock->fs_frag * n_bfree))
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printf("%lld blocks missing\n", (long long)n_blks);
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if (duplist != NULL) {
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printf("The following duplicate blocks remain:");
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for (dp = duplist; dp; dp = dp->next)
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printf(" %lld,", (long long)dp->dup);
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printf("\n");
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}
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if (zlnhead != NULL) {
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printf("The following zero link count inodes remain:");
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for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
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printf(" %u,", zlnp->zlncnt);
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printf("\n");
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}
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}
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zlnhead = (struct zlncnt *)0;
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duplist = (struct dups *)0;
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muldup = (struct dups *)0;
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inocleanup();
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if (fsmodified) {
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sblock->fs_time = time(NULL);
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sbdirty();
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}
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if (rerun)
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markclean = 0;
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#if LITE2BORKEN
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if (!hotroot()) {
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ckfini();
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} else {
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struct statfs stfs_buf;
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/*
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* Check to see if root is mounted read-write.
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*/
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if (statfs("/", &stfs_buf) == 0)
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flags = stfs_buf.f_flags;
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else
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flags = 0;
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if (markclean)
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markclean = flags & MNT_RDONLY;
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ckfini();
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}
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#else
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ckfini();
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#endif
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for (cylno = 0; cylno < sblock->fs_ncg; cylno++)
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if (inostathead[cylno].il_stat != NULL)
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free(inostathead[cylno].il_stat);
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free(inostathead);
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inostathead = NULL;
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if (!fsmodified)
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return (0);
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if (!preen)
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printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
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if (rerun)
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printf("\n***** PLEASE RERUN FSCK *****\n");
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if (hotroot()) {
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struct statfs stfs_buf;
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/*
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* We modified the root. Do a mount update on
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* it, unless it is read-write, so we can continue.
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*/
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if (statfs("/", &stfs_buf) == 0) {
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long flags = stfs_buf.f_flags;
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struct ufs_args args;
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int ret;
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if (flags & MNT_RDONLY) {
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args.fspec = 0;
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args.export.ex_flags = 0;
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args.export.ex_root = 0;
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flags |= MNT_UPDATE | MNT_RELOAD;
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ret = mount(MOUNT_FFS, "/", flags, &args);
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if (ret == 0)
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return(0);
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}
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}
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if (!preen)
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printf("\n***** REBOOT NOW *****\n");
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sync();
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return (4);
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}
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return (0);
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}
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static void
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usage()
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{
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(void) fprintf(stderr,
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"Usage: %s [-dFfnpy] [-B be|le] [-b block] [-c level] [-m mode]"
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" filesystem ...\n",
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getprogname());
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exit(1);
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}
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