4 # Create and populate an ext4 filesystem, corrupt a group descriptor, then
5 # see how 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
59 dumpe2fs -g "${SCRATCH_DEV}" > /dev/null 2>&1 || _notrun "dumpe2fs -g not supported"
61 echo "+ mount fs image"
64 echo "+ make some files"
66 for x in `seq 1 128`; do
67 touch "${SCRATCH_MNT}/junk.${x}"
68 inode="$(stat -c '%i' "${SCRATCH_MNT}/junk.${x}")"
69 if [ "$x" -gt 64 ] && [ "$((inode % 64))" -eq 0 ]; then
70 mv "${SCRATCH_MNT}/junk.${x}" "${TESTFILE}.1"
74 for x in `seq 2 64`; do
75 echo moo >> "${TESTFILE}.${x}"
77 umount "${SCRATCH_MNT}"
80 e2fsck -fn "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "fsck should not fail"
82 echo "+ corrupt image"
83 dumpe2fs -g "${SCRATCH_DEV}" 2>/dev/null | awk -F ':' '{if (int($4) != -1) {print $4}}' | sed -e 's/-.*$//g' | awk '{if (int($1) > 0) {print $1}}' | while read blk; do
84 debugfs -w -R "zap_block ${blk}" "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "group descriptor fuzz failed"
88 _scratch_mount 2> /dev/null && _fail "mount should not succeed"
91 e2fsck -fy "${SCRATCH_DEV}" >> $seqres.full 2>&1
92 e2fsck -fy "${SCRATCH_DEV}" >> $seqres.full 2>&1
94 echo "+ mount image (2)"
97 umount "${SCRATCH_MNT}"
100 e2fsck -fn "${SCRATCH_DEV}" >> $seqres.full 2>&1 || _fail "fsck should not fail"