test_description="disable csum seed on mounted fs via tune2fs after changing uuid"

trap "rm -rf $TMPFILE $TMPFILE.conf" EXIT INT QUIT
dd if=/dev/zero of=$TMPFILE bs=1k count=512 > /dev/null 2>&1
OUT=$test_name.log
EXP=$test_dir/expect
rm -rf $OUT

# Test command line option
echo "create fs without csum_seed" >> $OUT
$MKE2FS -O metadata_csum,^metadata_csum_seed -U 6b33f586-a183-4383-921d-30da3fef2e5c -F $TMPFILE > /dev/null 2>&1
$DUMPE2FS $TMPFILE 2>&1 | egrep '(Checksum seed:|UUID)' >> $OUT

echo "turn on csum_seed" >> $OUT
$TUNE2FS -O metadata_csum_seed $TMPFILE > /dev/null 2>&1
$DUMPE2FS $TMPFILE 2>&1 | egrep '(Checksum seed:|UUID)' >> $OUT

echo "change UUID" >> $OUT
$TUNE2FS -U a61be2e0-b3b8-4fbc-b2cd-d84b306b9731 $TMPFILE > /dev/null 2>&1
$DUMPE2FS $TMPFILE 2>&1 | egrep '(Checksum seed:|UUID)' >> $OUT

echo "check filesystem" >> $OUT
$FSCK $FSCK_OPT -fy $TMPFILE > /dev/null 2>&1
echo "fsck returns $?" >> $OUT
$DUMPE2FS $TMPFILE 2>&1 | egrep '(Checksum seed:|UUID)' >> $OUT

echo "turn off csum_seed" >> $OUT
EXT2FS_PRETEND_RW_MOUNT=1 $TUNE2FS -O ^metadata_csum_seed $TMPFILE > /dev/null 2>&1
$DUMPE2FS $TMPFILE 2>&1 | egrep '(Checksum seed:|UUID)' >> $OUT

echo "check filesystem" >> $OUT
$FSCK $FSCK_OPT -fy $TMPFILE > /dev/null 2>&1
echo "fsck returns $?" >> $OUT
$DUMPE2FS $TMPFILE 2>&1 | egrep '(Checksum seed:|UUID)' >> $OUT

cmp -s $OUT $EXP
status=$?

if [ "$status" = 0 ] ; then
	echo "$test_name: $test_description: ok"
	touch $test_name.ok
else
	echo "$test_name: $test_description: failed"
	diff $DIFF_OPTS $EXP $OUT > $test_name.failed
	rm -f $test_name.tmp
fi