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