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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2005 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1983, 1984, 1985, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
/*
* Portions of this source code were derived from Berkeley 4.3 BSD
* under license from the Regents of the University of California.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* clri filsys inumber ...
*/
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/param.h>
#include <sys/types.h>
#include <sys/mntent.h>
#include <sys/vnode.h>
#include <sys/fs/ufs_inode.h>
#include <sys/fs/ufs_fs.h>
#include "roll_log.h"
#define ISIZE (sizeof (struct dinode))
#define NI (MAXBSIZE/ISIZE)
static struct dinode buf[NI];
static union {
char dummy[SBSIZE];
struct fs sblk;
} sb_un;
#define sblock sb_un.sblk
static int status;
static int read_sb(int fd, const char *dev);
static int isnumber(const char *s);
int
main(int argc, char *argv[])
{
int i, f;
unsigned int n;
int j;
offset_t off;
int32_t gen;
time_t t;
int sbrr;
if (argc < 3) {
(void) printf("ufs usage: clri filsys inumber ...\n");
return (35);
}
f = open64(argv[1], 2);
if (f < 0) {
(void) printf("cannot open %s\n", argv[1]);
return (35);
}
if ((sbrr = read_sb(f, argv[1])) != 0) {
return (sbrr);
}
if ((sblock.fs_magic != FS_MAGIC) &&
(sblock.fs_magic != MTB_UFS_MAGIC)) {
(void) printf("bad super block magic number\n");
return (35);
}
if (sblock.fs_magic == FS_MAGIC &&
(sblock.fs_version != UFS_EFISTYLE4NONEFI_VERSION_2 &&
sblock.fs_version != UFS_VERSION_MIN)) {
(void) printf(
"unrecognized version of UFS on-disk format: %d\n",
sblock.fs_version);
return (35);
}
if (sblock.fs_magic == MTB_UFS_MAGIC &&
(sblock.fs_version > MTB_UFS_VERSION_1 ||
sblock.fs_version < MTB_UFS_VERSION_MIN)) {
(void) printf(
"unrecognized version of UFS on-disk format: %d\n",
sblock.fs_version);
return (35);
}
/* If fs is logged, roll the log. */
if (sblock.fs_logbno) {
switch (rl_roll_log(argv[1])) {
case RL_SUCCESS:
/*
* Reread the superblock. Rolling the log may have
* changed it.
*/
if ((sbrr = read_sb(f, argv[1])) != 0) {
return (sbrr);
}
break;
case RL_SYSERR:
(void) printf("Warning: Cannot roll log for %s. %s. "
"Inodes will be cleared anyway.\n",
argv[1], strerror(errno));
break;
default:
(void) printf("Cannot roll log for %s. "
"Inodes will be cleared anyway.\n",
argv[1]);
break;
}
}
for (i = 2; i < argc; i++) {
if (!isnumber(argv[i])) {
(void) printf("%s: is not a number\n", argv[i]);
status = 1;
continue;
}
n = atoi(argv[i]);
if (n == 0) {
(void) printf("%s: is zero\n", argv[i]);
status = 1;
continue;
}
off = fsbtodb(&sblock, itod(&sblock, n));
off *= DEV_BSIZE;
(void) llseek(f, off, 0);
if (read(f, (char *)buf, sblock.fs_bsize) != sblock.fs_bsize) {
(void) printf("%s: read error\n", argv[i]);
status = 1;
}
}
if (status)
return (status+31);
/*
* Update the time in superblock, so fsck will check this filesystem.
*/
(void) llseek(f, (offset_t)(SBLOCK * DEV_BSIZE), 0);
(void) time(&t);
sblock.fs_time = (time32_t)t;
if (write(f, &sblock, SBSIZE) != SBSIZE) {
(void) printf("cannot update %s\n", argv[1]);
return (35);
}
for (i = 2; i < argc; i++) {
n = atoi(argv[i]);
(void) printf("clearing %u\n", n);
off = fsbtodb(&sblock, itod(&sblock, n));
off *= DEV_BSIZE;
(void) llseek(f, off, 0);
(void) read(f, (char *)buf, sblock.fs_bsize);
j = itoo(&sblock, n);
gen = buf[j].di_gen;
memset(&buf[j], 0, ISIZE);
buf[j].di_gen = gen + 1;
(void) llseek(f, off, 0);
(void) write(f, (char *)buf, sblock.fs_bsize);
}
if (status)
return (status+31);
(void) close(f);
return (0);
}
static int
isnumber(const char *s)
{
int c;
while ((c = *s++) != '\0')
if (c < '0' || c > '9')
return (0);
return (1);
}
static int
read_sb(int fd, const char *dev)
{
(void) llseek(fd, (offset_t)(SBLOCK * DEV_BSIZE), 0);
if (read(fd, &sblock, SBSIZE) != SBSIZE) {
(void) printf("cannot read %s\n", dev);
return (35);
} else {
return (0);
}
}
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