diff options
Diffstat (limited to 'tools/obbtool')
| -rwxr-xr-x | tools/obbtool/mkobb.sh | 30 |
1 files changed, 21 insertions, 9 deletions
diff --git a/tools/obbtool/mkobb.sh b/tools/obbtool/mkobb.sh index f4cae9a1999f..1987696d0bb2 100755 --- a/tools/obbtool/mkobb.sh +++ b/tools/obbtool/mkobb.sh @@ -21,7 +21,7 @@ MOUNTDIR=/tmp # Presets. Changing these will probably break your OBB on the device -CRYPTO=blowfish +CRYPTO=twofish FS=vfat MKFS=mkfs.vfat LOSETUP=losetup @@ -122,7 +122,12 @@ onexit() { rmdir ${temp_mount} fi if [ "x${loop_dev}" != "x" ]; then \ - ${LOSETUPBIN} -d ${loop_dev} + if [ ${use_crypto} -eq 1 ]; then \ + dmsetup remove -f ${loop_dev} + ${LOSETUPBIN} -d ${old_loop_dev} + else \ + ${LOSETUPBIN} -d ${loop_dev} + fi fi if [ "x${tempfile}" != "x" -a -f "${tempfile}" ]; then \ rm -f ${tempfile} @@ -202,7 +207,7 @@ trap onexit ERR tempfile=$(tempfile -d ${outdir}) || ( echo "ERROR: couldn't create temporary file in ${outdir}"; exit 1 ) -block_count=`du --apparent-size --block-size=512 ${directory} | awk '{ print $1; }'` +block_count=`du -s --apparent-size --block-size=512 ${directory} | awk '{ print $1; }'` if [ $? -ne 0 ]; then \ echo "ERROR: Couldn't read size of input directory ${directory}" exit 1 @@ -216,12 +221,14 @@ fi loop_dev=$(${LOSETUPBIN} -f) || ( echo "ERROR: losetup wouldn't tell us the next unused device"; exit 1 ) +${LOSETUPBIN} ${loop_dev} ${tempfile} || ( echo "ERROR: couldn't create loopback device"; exit 1 ) + if [ ${use_crypto} -eq 1 ]; then \ - keyfile=$(tempfile -d ${outdir}) || ( echo "ERROR: could not create temporary key file"; exit 1 ) - ${LOSETUPBIN} -p 5 -e ${CRYPTO} ${loop_dev} ${tempfile} 5< ${keyfile} || ( echo "ERROR: couldn't create loopback device"; exit 1 ) - rm -f ${keyfile} -else \ - ${LOSETUPBIN} ${loop_dev} ${tempfile} || ( echo "ERROR: couldn't create loopback device"; exit 1 ) + hashed_key=`echo -n "${key}" | md5sum | awk '{ print $1 }'` + unique_dm_name=`basename ${tempfile}` + echo "0 `blockdev --getsize ${loop_dev}` crypt ${CRYPTO} ${hashed_key} 0 ${loop_dev} 0" | dmsetup create ${unique_dm_name} + old_loop_dev=${loop_dev} + loop_dev=/dev/mapper/${unique_dm_name} fi # @@ -252,7 +259,12 @@ echo "Successfully created \`${filename}'" # umount ${temp_mount} rmdir ${temp_mount} -${LOSETUPBIN} -d ${loop_dev} +if [ ${use_crypto} -eq 1 ]; then \ + dmsetup remove -f ${loop_dev} + ${LOSETUPBIN} -d ${old_loop_dev} +else \ + ${LOSETUPBIN} -d ${loop_dev} +fi mv ${tempfile} ${filename} trap - ERR |