1#!/bin/sh 2 3# 4# SPDX-License-Identifier: BSD-2-Clause 5# 6# Copyright (c) 2023 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) disk image fuzz test. 31# Test without mount(8) and umount(8) 32 33. ../default.cfg 34 35[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 36 37cc -o /tmp/flip -Wall -Wextra -O2 ../tools/flip.c || exit 1 38 39# Disable the calls to sync(2) in fsck_ffs(8) to speed up the test 40echo 'int sync(void) { return (0); }' > /tmp/fsck_preload.c 41mycc -o /tmp/fsck_preload.so -shared -fpic /tmp/fsck_preload.c || exit 1 42rm /tmp/fsck_preload.c 43 44set -eu 45u1=$mdstart 46u2=$((mdstart + 1)) 47mp1=${mntpoint}$u1 48prog=$(basename "$0" .sh) 49mkdir -p $mp1 50 51max=$((2 * 1024 * 1024)) # Two alternate super blocks @ 192 and 2240 52i=`jot -r 1 1 3` 53[ $i -eq 1 ] && flags="-O2" 54[ $i -eq 2 ] && flags="-U" 55[ $i -eq 3 ] && { flags="-j"; max=$((8 * 1024 * 1024)); } 56 57backup=$mp1/$prog.diskimage.$flags.`date +%Y%m%dT%H%M%S` 58core=/tmp/$prog.core.`date +%Y%m%dT%H%M%S` 59diskimage=$mp1/$prog.diskimage 60log=$mp1/$prog.log 61 62asbs=0 63cleans=0 64reruns=0 65waccess=0 66 67set +e 68mount | grep "on $mp1 " | grep -q /dev/md && umount -f $mp1 69[ -c /dev/md$u1 ] && mdconfig -d -u $u1 70mdconfig -a -t swap -s 10g -u $u1 71newfs $newfs_flags /dev/md$u1 > /dev/null 72mount /dev/md$u1 $mp1 73 74[ -c /dev/md$u2 ] && mdconfig -d -u $u2 75dd if=/dev/zero of=$diskimage bs=$max count=1 status=none 76mdconfig -a -t vnode -f $diskimage -u $u2 77backups=`newfs -N $flags md$u2 | grep -A1 "super-block backups" | \ 78 tail -1 | sed 's/,//g'` 79echo "newfs $flags /dev/md$u2" 80newfs $flags md$u2 > /dev/null 81mdconfig -d -u $u2 82 83chk() { 84 local i 85 86 clean=0 87 rerun=0 88 waccess=0 89 LD_PRELOAD=/tmp/fsck_preload.so \ 90 timeout 2m fsck_ffs -fy $1 > $log 2>&1 91 r=$? 92 if grep -qiE "super-?block.*failed" $log; then 93 for b in $backups; do 94 asbs=$((asbs + 1)) 95 LD_PRELOAD=/tmp/fsck_preload.so \ 96 timeout 2m fsck_ffs -b $b -fy $1 > $log 2>&1 97 r=$? 98 grep -qiE "super-?block.*failed" $log || 99 break 100 done 101 usedasb=1 102 else 103 usedasb=0 104 fi 105 LANG=C egrep -q "[A-Z][A-Z]" $log && clean=0 106 grep -Eq "IS CLEAN|MARKED CLEAN" $log && clean=1 107 # For now regard a "was modified" as a cause for a rerun, 108 # disregarding "clean" claim. 109 grep -Eq "WAS MODIFIED" $log && rerun=1 110 grep -q RERUN $log && rerun=1 111 grep -q "NO WRITE ACCESS" $log && waccess=1 112 [ $r -ne 0 -a $clean -eq 1 ] && echo "Exit code $r w/ clean == 1" 113} 114 115cd $mp1 116s=0 117start=`date +%s` 118while [ $((`date +%s` - start)) -lt 60 ]; do 119 /tmp/flip -n 50 $diskimage 120 121 cp $diskimage $backup 122 123 for i in `jot 10`; do 124 chk $diskimage 125 [ $i -eq 1 -a "$flags" = "-j" ] && continue # First run processes the journal 126 [ $rerun -eq 1 ] && { reruns=$((reruns + 1)); continue; } 127 [ $clean -eq 1 ] && { cleans=$((cleans + 1)); break; } 128 [ -f fsck_ffs.core ] && { s=1; break 2; } 129 [ $r -eq 124 ] && { s=2; break 2; } # timeout 130 done 131 [ $clean -ne 1 ] && break 132 [ $r -ne 0 -a $clean -eq 1 ] && 133 { echo "CLEAN && non zero exit code"; break; } 134 [ $clean -eq 1 ] && continue 135 [ $usedasb -eq 1 ] && { echo "Alt. SB failed"; s=104; } 136 [ $waccess -eq 1 ] && { echo "No write access"; s=105; } 137 break 138done 139 140echo "$cleans cleans, $reruns reruns, $asbs alternate SBs." 141if [ $clean -ne 1 ]; then 142 echo "FS still not clean. Last fsck_ffs exit code was $r." 143 [ $s -eq 0 ] && s=106 144fi 145grep -q "Superblock check-hash failed" $log && s=0 # Ignore for now 146grep -q "is not a file system superblock" $log && s=0 # Ignore for now 147[ $s -ne 0 ] && { gzip $backup; cp -v $backup.gz /tmp; } 148cd /tmp 149umount $mp1 150mdconfig -d -u $u1 151rm -f /tmp/flip /tmp/fsck_preload.so 152exit $s 153