1test_description="corrupt e2undo block data" 2if test -x $E2UNDO_EXE; then 3 4E2FSPROGS_UNDO_DIR=${TMPDIR:-/tmp} 5export E2FSPROGS_UNDO_DIR 6TDB_FILE=$E2FSPROGS_UNDO_DIR/tune2fs-$(basename $TMPFILE).e2undo 7OUT=$test_name.log 8rm -f $TDB_FILE >/dev/null 2>&1 9 10dd if=/dev/zero of=$TMPFILE bs=1k count=512 > /dev/null 2>&1 11 12echo mke2fs -q -F -o Linux -b 1024 $TMPFILE > $OUT 13$MKE2FS -q -F -o Linux -I 128 -b 1024 $TMPFILE >> $OUT 2>&1 14crc0=`$CRCSUM $TMPFILE` 15echo $CRCSUM before tune2fs $crc0 >> $OUT 16 17echo using tune2fs to test e2undo >> $OUT 18$TUNE2FS -I 256 $TMPFILE >> $OUT 2>&1 19crc1=`$CRCSUM $TMPFILE` 20echo $CRCSUM after tune2fs $crc1 >> $OUT 21 22undo_blks=$(( $(stat -c '%s' $TDB_FILE 2>/dev/null || stat -f '%z' $TDB_FILE 2>/dev/null) / 1024 )) 23dd if=/dev/zero of=$TDB_FILE bs=1024 count=1 seek=$((undo_blks - 2)) conv=notrunc > /dev/null 2>&1 24 25$E2UNDO $TDB_FILE $TMPFILE >> $OUT 2>&1 26res=$? 27crc2=`$CRCSUM $TMPFILE` 28echo $CRCSUM after e2undo $crc2 >> $OUT 29 30if [ $res -ne 0 ] && [ $crc2 = $crc1 ] && [ $crc2 != $crc0 ]; then 31 echo "$test_name: $test_description: ok" 32 touch $test_name.ok 33else 34 ln -f $test_name.log $test_name.failed 35 echo "$test_name: $test_description: failed" 36fi 37rm -f $TDB_FILE $TMPFILE 38fi 39