| #!/bin/bash |
| # |
| # To call this script, make sure mke2fs is somewhere in PATH |
| |
| function usage() { |
| cat<<EOT |
| Usage: |
| mkuserimg.sh [-s] SRC_DIR OUTPUT_FILE EXT_VARIANT MOUNT_POINT SIZE [-j <journal_size>] |
| [-T TIMESTAMP] [-C FS_CONFIG] [-D PRODUCT_OUT] [-B BLOCK_LIST_FILE] |
| [-d BASE_ALLOC_FILE_IN ] [-A BASE_ALLOC_FILE_OUT ] [-L LABEL] |
| [-i INODES ] [-M RSV_PCT] [-e ERASE_BLOCK_SIZE] [-o FLASH_BLOCK_SIZE] |
| [-U MKE2FS_UUID] [-S MKE2FS_HASH_SEED] [-c] [FILE_CONTEXTS] |
| EOT |
| } |
| |
| BLOCKSIZE=4096 |
| |
| MKE2FS_OPTS="" |
| MKE2FS_EXTENDED_OPTS="" |
| E2FSDROID_OPTS="" |
| E2FSPROGS_FAKE_TIME="" |
| |
| if [ "$1" = "-s" ]; then |
| MKE2FS_EXTENDED_OPTS+="android_sparse" |
| shift |
| else |
| E2FSDROID_OPTS+="-e" |
| fi |
| |
| if [ $# -lt 5 ]; then |
| usage |
| exit 1 |
| fi |
| |
| SRC_DIR=$1 |
| if [ ! -d $SRC_DIR ]; then |
| echo "Can not find directory $SRC_DIR!" |
| exit 2 |
| fi |
| |
| OUTPUT_FILE=$2 |
| EXT_VARIANT=$3 |
| MOUNT_POINT=$4 |
| SIZE=$5 |
| shift; shift; shift; shift; shift |
| |
| if [ "$1" = "-j" ]; then |
| if [ "$2" = "0" ]; then |
| MKE2FS_OPTS+="-O ^has_journal" |
| else |
| MKE2FS_OPTS+="-J size=$2" |
| fi |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-T" ]]; then |
| E2FSDROID_OPTS+=" -T $2" |
| E2FSPROGS_FAKE_TIME=$2 |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-C" ]]; then |
| E2FSDROID_OPTS+=" -C $2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-D" ]]; then |
| E2FSDROID_OPTS+=" -p $2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-B" ]]; then |
| E2FSDROID_OPTS+=" -B $2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-d" ]]; then |
| E2FSDROID_OPTS+=" -d $2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-A" ]]; then |
| E2FSDROID_OPTS+=" -D $2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-L" ]]; then |
| MKE2FS_OPTS+=" -L $2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-i" ]]; then |
| MKE2FS_OPTS+=" -N $2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-M" ]]; then |
| MKE2FS_OPTS+=" -m $2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-e" ]]; then |
| if [[ $MKE2FS_EXTENDED_OPTS ]]; then |
| MKE2FS_EXTENDED_OPTS+="," |
| fi |
| MKE2FS_EXTENDED_OPTS+="stripe_width=$(($2/BLOCKSIZE))" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-o" ]]; then |
| if [[ $MKE2FS_EXTENDED_OPTS ]]; then |
| MKE2FS_EXTENDED_OPTS+="," |
| fi |
| # stride should be the max of 8kb and the logical block size |
| MKE2FS_EXTENDED_OPTS+="stride=$((($2 > 8192 ? $2 : 8192) / BLOCKSIZE))" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-U" ]]; then |
| MKE2FS_OPTS+=" -U $2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-S" ]]; then |
| if [[ $MKE2FS_EXTENDED_OPTS ]]; then |
| MKE2FS_EXTENDED_OPTS+="," |
| fi |
| MKE2FS_EXTENDED_OPTS+="hash_seed=$2" |
| shift; shift |
| fi |
| |
| if [[ "$1" == "-c" ]]; then |
| E2FSDROID_OPTS+=" -s" |
| shift; |
| fi |
| |
| if [[ $MKE2FS_EXTENDED_OPTS ]]; then |
| MKE2FS_OPTS+=" -E $MKE2FS_EXTENDED_OPTS" |
| fi |
| |
| if [[ $1 ]]; then |
| E2FSDROID_OPTS+=" -S $1" |
| fi |
| |
| case $EXT_VARIANT in |
| ext2) ;; |
| ext4) ;; |
| *) echo "Only ext2/4 are supported!"; exit 3 ;; |
| esac |
| |
| if [ -z $MOUNT_POINT ]; then |
| echo "Mount point is required" |
| exit 2 |
| fi |
| |
| if [[ ${MOUNT_POINT:0:1} != "/" ]]; then |
| MOUNT_POINT="/"$MOUNT_POINT |
| fi |
| |
| if [ -z $SIZE ]; then |
| echo "Need size of filesystem" |
| exit 2 |
| fi |
| |
| # Round down the filesystem length to be a multiple of the block size |
| SIZE=$((SIZE / BLOCKSIZE)) |
| |
| # truncate output file since mke2fs will keep verity section in existing file |
| cat /dev/null >$OUTPUT_FILE |
| |
| MAKE_EXT4FS_ENV="MKE2FS_CONFIG=./system/extras/ext4_utils/mke2fs.conf" |
| if [[ $E2FSPROGS_FAKE_TIME ]]; then |
| MAKE_EXT4FS_ENV+=" E2FSPROGS_FAKE_TIME=$E2FSPROGS_FAKE_TIME" |
| fi |
| |
| MAKE_EXT4FS_CMD="mke2fs $MKE2FS_OPTS -t $EXT_VARIANT -b $BLOCKSIZE $OUTPUT_FILE $SIZE" |
| echo $MAKE_EXT4FS_ENV $MAKE_EXT4FS_CMD |
| env $MAKE_EXT4FS_ENV $MAKE_EXT4FS_CMD |
| if [ $? -ne 0 ]; then |
| exit 4 |
| fi |
| |
| if [[ $E2FSPROGS_FAKE_TIME ]]; then |
| E2FSDROID_ENV="E2FSPROGS_FAKE_TIME=$E2FSPROGS_FAKE_TIME" |
| fi |
| |
| E2FSDROID_CMD="e2fsdroid $E2FSDROID_OPTS -f $SRC_DIR -a $MOUNT_POINT $OUTPUT_FILE" |
| echo $E2FSDROID_ENV $E2FSDROID_CMD |
| env $E2FSDROID_ENV $E2FSDROID_CMD |
| if [ $? -ne 0 ]; then |
| rm -f $OUTPUT_FILE |
| exit 4 |
| fi |