4 # Create and populate an ext4 filesystem, corrupt an inode, then see how
5 # the kernel and e2fsck deal with it.
7 #-----------------------------------------------------------------------
8 # Copyright (c) 2015 Oracle, Inc. All Rights Reserved.
10 # This program is free software; you can redistribute it and/or
11 # modify it under the terms of the GNU General Public License as
12 # published by the Free Software Foundation.
14 # This program is distributed in the hope that it would be useful,
15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 # GNU General Public License for more details.
19 # You should have received a copy of the GNU General Public License
20 # along with this program; if not, write the Free Software Foundation,
21 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #-----------------------------------------------------------------------
26 seqres=$RESULT_DIR/$seq
27 echo "QA output created by $seq"
31 status=1 # failure is the default!
32 trap "_cleanup; exit \$status" 0 1 2 3 15
40 # get standard environment, filters and checks
45 # real QA test starts here
50 test -n "${FORCE_FUZZ}" || _require_scratch_ext4_crc
54 TESTDIR="${SCRATCH_MNT}/scratchdir"
55 TESTFILE="${TESTDIR}/testfile"
57 echo "+ create scratch fs"
58 _scratch_mkfs_ext4 > /dev/null 2>&1
60 echo "+ mount fs image"
63 echo "+ make some files"
65 for x in `seq 1 1024`; do
66 touch "${SCRATCH_MNT}/junk.${x}"
67 inode="$(stat -c '%i' "${SCRATCH_MNT}/junk.${x}")"
68 if [ "$x" -gt 512 ] && [ "$((inode % 64))" -eq 0 ]; then
69 mv "${SCRATCH_MNT}/junk.${x}" "${TESTFILE}.1"
73 for x in `seq 2 64`; do
74 touch "${TESTFILE}.${x}"
76 inode="$(stat -c '%i' "${TESTFILE}.1")"
77 umount "${SCRATCH_MNT}"
80 e2fsck -fn "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "fsck should not fail"
82 echo "+ corrupt image"
83 blk="$(debugfs -R "imap <$inode>" "${SCRATCH_DEV}" 2> /dev/null | grep located | sed -e 's/^.*block \([0-9]*\),.*$/\1/g')"
84 debugfs -w -R "zap_block ${blk}" "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "inode fuzz failed"
91 for x in `seq 1 64`; do
92 #test -e "${TESTFILE}.${x}" || continue
93 stat "${TESTFILE}.${x}" >> $seqres.full 2>&1
94 test $? -ne 0 && broken=1
95 echo moo | dd oflag=append of="${TESTFILE}.${x}" 2>/dev/null
96 test $? -ne 0 && broken=1
98 echo "broken: ${broken}"
99 umount "${SCRATCH_MNT}"
102 e2fsck -fy "${SCRATCH_DEV}" >> $seqres.full 2>&1
104 echo "+ mount image (2)"
107 echo "+ chattr -R -i"
108 $CHATTR_PROG -R -f -i "${SCRATCH_MNT}/"
110 echo "+ modify files (2)"
112 for x in `seq 1 64`; do
113 test -e "${TESTFILE}.${x}" || continue
114 stat "${TESTFILE}.${x}" >> $seqres.full 2>&1
115 test $? -ne 0 && broken=1
116 echo moo | dd oflag=append of="${TESTFILE}.${x}" 2>/dev/null
117 test $? -ne 0 && broken=1
119 echo "broken: ${broken}"
120 umount "${SCRATCH_MNT}"
122 echo "+ check fs (2)"
123 e2fsck -fn "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "fsck should not fail"