1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause-FreeBSD 5# 6# Copyright (c) 2022 Peter Holm <pho@FreeBSD.org> 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 1. Redistributions of source code must retain the above copyright 12# notice, this list of conditions and the following disclaimer. 13# 2. Redistributions in binary form must reproduce the above copyright 14# notice, this list of conditions and the following disclaimer in the 15# documentation and/or other materials provided with the distribution. 16# 17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27# SUCH DAMAGE. 28# 29 30# fsck_ffs(8) false CLEAN claim scenario 31 32# https://people.freebsd.org/~pho/fsck9.sh.diskimage.20220716T150359.txt 33# https://people.freebsd.org/~pho/fsck9.sh.diskimage.20220716T150359.gz 34 35# https://people.freebsd.org/~pho/fsck9.sh.diskimage.20220716T172428.txt 36# https://people.freebsd.org/~pho/fsck9.sh.diskimage.20220716T172428.gz 37 38. ../default.cfg 39 40[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 41 42cc -o /tmp/flip -Wall -Wextra -O2 ../tools/flip.c || exit 1 43 44set -e 45u1=$mdstart 46u2=$((mdstart + 1)) 47mp1=${mntpoint}$u1 48mp2=${mntpoint}$u2 49mkdir -p $mp1 $mp2 50log=$mp1/fsck9.sh.log 51diskimage=$mp1/fsck9.sh.diskimage 52backup=/tmp/fsck9.sh.diskimage.`date +%Y%m%dT%H%M%S`.gz 53cleans=0 54reruns=0 55 56max=$((10 * 1024 * 1024)) 57newfs_flags='-U' 58 59mount | grep "on $mp1 " | grep -q /dev/md && umount -f $mp1 60[ -c /dev/md$u1 ] && mdconfig -d -u $u1 61mdconfig -a -t swap -s 1g -u $u1 62newfs $newfs_flags -n /dev/md$u1 > /dev/null 63mount /dev/md$u1 $mp1 64 65[ -c /dev/md$u2 ] && mdconfig -d -u $u2 66dd if=/dev/zero of=$diskimage bs=$max count=1 status=none 67mdconfig -a -t vnode -f $diskimage -u $u2 68backups=`newfs -N $newfs_flags md$u2 | grep -A1 "super-block backups" | \ 69 tail -1 | sed 's/,//g'` 70newfs $newfs_flags -n md$u2 > /dev/null 71mount /dev/md$u2 $mp2 72[ -d /usr/include/sys ] && cp -r /usr/include/sys $mp2 73umount $mp2 74set +e 75 76chk() { 77 local i 78 79 clean=0 80 rerun=0 81 fsck_ffs -fy $1 > $log 2>&1 82 r=$? 83 if grep -qE "Cannot find file system superblock|Superblock check-hash failed" $log; then 84 for b in $backups; do 85 fsck_ffs -b $b -fy $1 > $log 2>&1 86 r=$? 87 grep -qE "Cannot find file system superblock|Superblock check-hash failed" $log || 88 break 89 done 90 usedasb=1 91 else 92 usedasb=0 93 fi 94 LANG=C egrep -q "[A-Z][A-Z]" $log && clean=0 95 grep -Eq "IS CLEAN|MARKED CLEAN" $log && clean=1 96 grep -q RERUN $log && rerun=1 97 [ $r -ne 0 -a $clean -eq 1 ] && echo "Exit code $r w/ clean == 1" 98} 99 100cd $mp1 101clean=0 102s=0 103start=`date +%s` 104while [ $((`date +%s` - start)) -lt 300 ]; do 105 mount /dev/md$u2 $mp2 || { s=101; break; } 106 ls -lR $mp2 > /dev/null || { s=102; echo "ls failed"; break; } 107 touch $mp2/`jot -rc 8 a z | tr -d '\n'` 108 while mount | grep -q "on $mp2 "; do umount $mp2; done 109 echo * | grep -q core && break 110 sync 111 mdconfig -d -u $u2 112 /tmp/flip -n 5 $diskimage 113 114 sync 115 if [ `stat -f%z $diskimage` -gt $max ]; then 116 ls -lh $diskimage 117 truncate -s $max $diskimage 118 else 119 gzip < $diskimage > $backup 120 fi 121 fsync $backup 122 123 for i in `jot 5`; do 124 [ $i -gt 2 ] && echo "fsck run #$i" 125 chk $diskimage 126 [ $rerun -eq 1 ] && { reruns=$((reruns + 1)); continue; } 127 [ $clean -eq 1 ] && { cleans=$((cleans + 1)); break; } 128 [ -f fsck_ffs.core ] && break 2 129 done 130 if [ $clean -eq 1 ]; then 131# echo "Checking clean claim" 132 fsck_ffs -fy $diskimage > $log 2>&1 133 if grep -q MODIFIED $log; then 134 echo "fsck of "clean" FS found more issues:" 135 cat $log 136 s=1 137 break 138 fi 139 fi 140 [ $clean -ne 1 ] && break 141 mdconfig -a -t vnode -f $diskimage -u $u2 142done 143sleep 2 # Wait for /dev to catch up 144[ -c /dev/md$u2 ] && r1=1 || r1=0 145for i in `jot 5`; do 146 mount | grep -q "on $mp2 " || break 147 umount $mp2 && break 148 sleep 2 149done 150mdconfig -d -u $u2 2>/dev/null # XXX when mount fails 151 152[ $s -eq 0 ] && rm -f $backup 153cd /tmp 154for i in `jot 5`; do 155 umount $mp1 && break 156 sleep 2 157done 158mdconfig -d -u $u1 159rm -f /tmp/flip 160exit $s 161