336 lines
8.3 KiB
C
336 lines
8.3 KiB
C
/*
|
|
* Copyright (c) 1980, 1986, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
* SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef lint
|
|
static char copyright[] =
|
|
"@(#) Copyright (c) 1980, 1986, 1993\n\
|
|
The Regents of the University of California. All rights reserved.\n";
|
|
#endif /* not lint */
|
|
|
|
#ifndef lint
|
|
static char sccsid[] = "@(#)main.c 8.2 (Berkeley) 1/23/94";
|
|
#endif /* not lint */
|
|
|
|
#include <sys/param.h>
|
|
#include <sys/time.h>
|
|
#include <sys/proc.h>
|
|
#include <sys/mount.h>
|
|
#include <ufs/ufs/dinode.h>
|
|
#include <ufs/ffs/fs.h>
|
|
#include <fstab.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <ctype.h>
|
|
#include <stdio.h>
|
|
#include "fsck.h"
|
|
|
|
void catch(), catchquit(), voidquit();
|
|
int returntosingle;
|
|
|
|
main(argc, argv)
|
|
int argc;
|
|
char *argv[];
|
|
{
|
|
int ch;
|
|
int ret, maxrun = 0;
|
|
extern int docheck(), checkfilesys();
|
|
extern char *optarg, *blockcheck();
|
|
extern int optind;
|
|
|
|
sync();
|
|
while ((ch = getopt(argc, argv, "dfpnNyYb:c:l:m:")) != EOF) {
|
|
switch (ch) {
|
|
case 'p':
|
|
preen++;
|
|
break;
|
|
|
|
case 'b':
|
|
bflag = argtoi('b', "number", optarg, 10);
|
|
printf("Alternate super block location: %d\n", bflag);
|
|
break;
|
|
|
|
case 'c':
|
|
cvtlevel = argtoi('c', "conversion level", optarg, 10);
|
|
break;
|
|
|
|
case 'd':
|
|
debug++;
|
|
break;
|
|
|
|
case 'f':
|
|
fflag++;
|
|
break;
|
|
|
|
case 'l':
|
|
maxrun = argtoi('l', "number", optarg, 10);
|
|
break;
|
|
|
|
case 'm':
|
|
lfmode = argtoi('m', "mode", optarg, 8);
|
|
if (lfmode &~ 07777)
|
|
errexit("bad mode to -m: %o\n", lfmode);
|
|
printf("** lost+found creation mode %o\n", lfmode);
|
|
break;
|
|
|
|
case 'n':
|
|
case 'N':
|
|
nflag++;
|
|
yflag = 0;
|
|
break;
|
|
|
|
case 'y':
|
|
case 'Y':
|
|
yflag++;
|
|
nflag = 0;
|
|
break;
|
|
|
|
default:
|
|
errexit("%c option?\n", ch);
|
|
}
|
|
}
|
|
argc -= optind;
|
|
argv += optind;
|
|
if (signal(SIGINT, SIG_IGN) != SIG_IGN)
|
|
(void)signal(SIGINT, catch);
|
|
if (preen)
|
|
(void)signal(SIGQUIT, catchquit);
|
|
if (argc) {
|
|
while (argc-- > 0)
|
|
(void)checkfilesys(blockcheck(*argv++), 0, 0L, 0);
|
|
exit(0);
|
|
}
|
|
ret = checkfstab(preen, maxrun, docheck, checkfilesys);
|
|
if (returntosingle)
|
|
exit(2);
|
|
exit(ret);
|
|
}
|
|
|
|
argtoi(flag, req, str, base)
|
|
int flag;
|
|
char *req, *str;
|
|
int base;
|
|
{
|
|
char *cp;
|
|
int ret;
|
|
|
|
ret = (int)strtol(str, &cp, base);
|
|
if (cp == str || *cp)
|
|
errexit("-%c flag requires a %s\n", flag, req);
|
|
return (ret);
|
|
}
|
|
|
|
/*
|
|
* Determine whether a filesystem should be checked.
|
|
*/
|
|
docheck(fsp)
|
|
register struct fstab *fsp;
|
|
{
|
|
|
|
if (strcmp(fsp->fs_vfstype, "ufs") ||
|
|
(strcmp(fsp->fs_type, FSTAB_RW) &&
|
|
strcmp(fsp->fs_type, FSTAB_RO)) ||
|
|
fsp->fs_passno == 0)
|
|
return (0);
|
|
return (1);
|
|
}
|
|
|
|
/*
|
|
* Check the specified filesystem.
|
|
*/
|
|
/* ARGSUSED */
|
|
checkfilesys(filesys, mntpt, auxdata, child)
|
|
char *filesys, *mntpt;
|
|
long auxdata;
|
|
{
|
|
daddr_t n_ffree, n_bfree;
|
|
struct dups *dp;
|
|
struct zlncnt *zlnp;
|
|
int cylno;
|
|
|
|
if (preen && child)
|
|
(void)signal(SIGQUIT, voidquit);
|
|
cdevname = filesys;
|
|
if (debug && preen)
|
|
pwarn("starting\n");
|
|
if (setup(filesys) == 0) {
|
|
if (preen)
|
|
pfatal("CAN'T CHECK FILE SYSTEM.");
|
|
return (0);
|
|
}
|
|
|
|
if (preen && sblock.fs_clean && !fflag) {
|
|
pwarn("clean, %ld free ", sblock.fs_cstotal.cs_nffree +
|
|
sblock.fs_frag * sblock.fs_cstotal.cs_nbfree);
|
|
printf("(%ld frags, %ld blocks, %.1f%% fragmentation)\n",
|
|
sblock.fs_cstotal.cs_nffree,
|
|
sblock.fs_cstotal.cs_nbfree,
|
|
(float)(sblock.fs_cstotal.cs_nffree * 100) /
|
|
sblock.fs_dsize);
|
|
return(0);
|
|
}
|
|
|
|
/*
|
|
* 1: scan inodes tallying blocks used
|
|
*/
|
|
if (preen == 0) {
|
|
printf("** Last Mounted on %s\n", sblock.fs_fsmnt);
|
|
if (hotroot)
|
|
printf("** Root file system\n");
|
|
printf("** Phase 1 - Check Blocks and Sizes\n");
|
|
}
|
|
pass1();
|
|
|
|
/*
|
|
* 1b: locate first references to duplicates, if any
|
|
*/
|
|
if (duplist) {
|
|
if (preen)
|
|
pfatal("INTERNAL ERROR: dups with -p");
|
|
printf("** Phase 1b - Rescan For More DUPS\n");
|
|
pass1b();
|
|
}
|
|
|
|
/*
|
|
* 2: traverse directories from root to mark all connected directories
|
|
*/
|
|
if (preen == 0)
|
|
printf("** Phase 2 - Check Pathnames\n");
|
|
pass2();
|
|
|
|
/*
|
|
* 3: scan inodes looking for disconnected directories
|
|
*/
|
|
if (preen == 0)
|
|
printf("** Phase 3 - Check Connectivity\n");
|
|
pass3();
|
|
|
|
/*
|
|
* 4: scan inodes looking for disconnected files; check reference counts
|
|
*/
|
|
if (preen == 0)
|
|
printf("** Phase 4 - Check Reference Counts\n");
|
|
pass4();
|
|
|
|
/*
|
|
* 5: check and repair resource counts in cylinder groups
|
|
*/
|
|
if (preen == 0)
|
|
printf("** Phase 5 - Check Cyl groups\n");
|
|
pass5();
|
|
|
|
/*
|
|
* print out summary statistics
|
|
*/
|
|
n_ffree = sblock.fs_cstotal.cs_nffree;
|
|
n_bfree = sblock.fs_cstotal.cs_nbfree;
|
|
pwarn("%ld files, %ld used, %ld free ",
|
|
n_files, n_blks, n_ffree + sblock.fs_frag * n_bfree);
|
|
printf("(%ld frags, %ld blocks, %d.%d%% fragmentation)\n",
|
|
n_ffree, n_bfree, (n_ffree * 100) / sblock.fs_dsize,
|
|
((n_ffree * 1000 + sblock.fs_dsize / 2) / sblock.fs_dsize) % 10);
|
|
if (debug &&
|
|
(n_files -= maxino - ROOTINO - sblock.fs_cstotal.cs_nifree))
|
|
printf("%ld files missing\n", n_files);
|
|
if (debug) {
|
|
n_blks += sblock.fs_ncg *
|
|
(cgdmin(&sblock, 0) - cgsblock(&sblock, 0));
|
|
n_blks += cgsblock(&sblock, 0) - cgbase(&sblock, 0);
|
|
n_blks += howmany(sblock.fs_cssize, sblock.fs_fsize);
|
|
if (n_blks -= maxfsblock - (n_ffree + sblock.fs_frag * n_bfree))
|
|
printf("%ld blocks missing\n", n_blks);
|
|
if (duplist != NULL) {
|
|
printf("The following duplicate blocks remain:");
|
|
for (dp = duplist; dp; dp = dp->next)
|
|
printf(" %ld,", dp->dup);
|
|
printf("\n");
|
|
}
|
|
if (zlnhead != NULL) {
|
|
printf("The following zero link count inodes remain:");
|
|
for (zlnp = zlnhead; zlnp; zlnp = zlnp->next)
|
|
printf(" %lu,", zlnp->zlncnt);
|
|
printf("\n");
|
|
}
|
|
}
|
|
zlnhead = (struct zlncnt *)0;
|
|
duplist = (struct dups *)0;
|
|
muldup = (struct dups *)0;
|
|
inocleanup();
|
|
if (fsmodified) {
|
|
(void)time(&sblock.fs_time);
|
|
sbdirty();
|
|
}
|
|
if (cvtlevel && sblk.b_dirty) {
|
|
/*
|
|
* Write out the duplicate super blocks
|
|
*/
|
|
for (cylno = 0; cylno < sblock.fs_ncg; cylno++)
|
|
bwrite(fswritefd, (char *)&sblock,
|
|
fsbtodb(&sblock, cgsblock(&sblock, cylno)), SBSIZE);
|
|
}
|
|
ckfini();
|
|
free(blockmap);
|
|
free(statemap);
|
|
free((char *)lncntp);
|
|
if (!fsmodified)
|
|
return (0);
|
|
if (!preen)
|
|
printf("\n***** FILE SYSTEM WAS MODIFIED *****\n");
|
|
if (hotroot) {
|
|
struct statfs stfs_buf;
|
|
/*
|
|
* We modified the root. Do a mount update on
|
|
* it, unless it is read-write, so we can continue.
|
|
*/
|
|
if (statfs("/", &stfs_buf) == 0) {
|
|
long flags = stfs_buf.f_flags;
|
|
struct ufs_args args;
|
|
int ret;
|
|
|
|
if (flags & MNT_RDONLY) {
|
|
args.fspec = 0;
|
|
args.export.ex_flags = 0;
|
|
args.export.ex_root = 0;
|
|
flags |= MNT_UPDATE | MNT_RELOAD;
|
|
ret = mount(MOUNT_UFS, "/", flags, &args);
|
|
if (ret == 0)
|
|
return(0);
|
|
}
|
|
}
|
|
if (!preen)
|
|
printf("\n***** REBOOT NOW *****\n");
|
|
sync();
|
|
return (4);
|
|
}
|
|
return (0);
|
|
}
|