mirror of
https://github.com/xiaolu/mkbootimg_tools.git
synced 2026-02-12 21:19:30 +01:00
35ccef5bc8
-- Added support for xz (statically compiled) -- Added support for properly determing file type with file (statically compiled) -- Added support with magic -- Some minor cosmetic changes to the script -- Completely rewrote the handling support of ramdisks -- Added Hazard warning for compression formats currently not supported using this tool (Please contact me if you are one of them) -- And more I am sure lol
383 lines
12 KiB
Bash
Executable File
383 lines
12 KiB
Bash
Executable File
#!/system/xbin/bash
|
||
#
|
||
# Licensed under the Apache License, Version 2.0 (the "License");
|
||
# you may not use this file except in compliance with the License.
|
||
# You may obtain a copy of the License at
|
||
#
|
||
# http://www.apache.org/licenses/LICENSE-2.0
|
||
#
|
||
# Unless required by applicable law or agreed to in writing, software
|
||
# distributed under the License is distributed on an "AS IS" BASIS,
|
||
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||
# See the License for the specific language governing permissions and
|
||
# limitations under the License.
|
||
#
|
||
#boot.img tool
|
||
#original author: xiaolu
|
||
#heavily modified by: Modding.MyMind
|
||
|
||
#set -x # for debugging
|
||
|
||
trap "clean" 2 3 4
|
||
workdir=$(pwd)
|
||
toolpath=$(readlink -f $0)
|
||
tooldir=$(dirname $toolpath)
|
||
mkbootimg=$tooldir/mkbootimg
|
||
mkbootfs=$tooldir/mkbootfs
|
||
od=$tooldir/od
|
||
gzip=$tooldir/gzip
|
||
lz4=$tooldir/lz4
|
||
lzma=$tooldir/lzma
|
||
xz=$tooldir/xz # Also used for lzma compression
|
||
grep=$tooldir/grep
|
||
cpio=$tooldir/cpio
|
||
magic=$tooldir/magic
|
||
file=$tooldir/file
|
||
old_bootimg=true
|
||
C_OUT="\033[0;1m"
|
||
C_ERR="\033[31;1m"
|
||
C_CLEAR="\033[0;0m"
|
||
|
||
pout() {
|
||
printf "${C_OUT}${*}${C_CLEAR}\n"
|
||
}
|
||
perr() {
|
||
printf "${C_ERR}${*}${C_CLEAR}\n"
|
||
}
|
||
clean()
|
||
{
|
||
busybox rm -rf /tmp/mkboot.*
|
||
#pout "..."
|
||
exit
|
||
}
|
||
|
||
usage()
|
||
{
|
||
pout "<Unpack and repack boot.img tool>"
|
||
pout "----------------------------------------------------------------------"
|
||
pout "Not enough parameters or parameter error!"
|
||
pout "unpack boot.img & decompress ramdisk：\n $(basename $0) [img] [output dir]"
|
||
pout " $(basename $0) boot.img boot20130905"
|
||
pout "Use the unpacked directory repack boot.img(img_info)：\n $(basename $0) [unpacked dir] [newbootfile]"
|
||
pout " $(basename $0) boot20130905 newboot.img"
|
||
clean
|
||
}
|
||
|
||
print_info()
|
||
{
|
||
pout " kernel : $kernel"
|
||
pout " ramdisk : $ramdisk"
|
||
pout " page size : $page_size"
|
||
pout " kernel size : $kernel_size"
|
||
pout " ramdisk size : $ramdisk_size"
|
||
[ ! -z $second_size ] && [ $second_size -gt 0 ] && \
|
||
pout " second_size : $second_size"
|
||
[ $dtb_size -gt 0 ] && pout " dtb size : $dtb_size"
|
||
pout " base : $base_addr"
|
||
pout " kernel offset : $kernel_offset"
|
||
pout " ramdisk offset : $ramdisk_offset"
|
||
[ -z $second_offset ] || pout " second_offset : $second_offset"
|
||
pout " tags offset : $tags_offset"
|
||
[ $dtb_size -gt 0 ] && pout " dtb img : $dt"
|
||
pout " cmd line : $cmd_line"
|
||
}
|
||
|
||
mkboot_img()
|
||
{
|
||
error=0
|
||
if [ $dtb_size -gt 0 ]; then
|
||
dtb="--dt ${dt}"
|
||
fi
|
||
$mkbootimg --kernel $kernel --ramdisk $ramdisk \
|
||
--base $base_addr --ramdisk_offset $ramdisk_offset \
|
||
--tags_offset $tags_offset --cmdline "$cmd_line" \
|
||
--pagesize $page_size $dtb -o $new_img 2>/dev/null || error=1
|
||
[ $error -eq 1 ] && return $error
|
||
ramdisk_size=$(stat -c "%s" $ramdisk)
|
||
boot_size=$(stat -c "%s" $new_img)
|
||
pout "\nKernel size: $kernel_size, new ramdisk size: $ramdisk_size, $(basename $new_img): $boot_size."
|
||
pout "\n$(basename $new_img) has been created.\n"
|
||
}
|
||
|
||
#decide action
|
||
[ $# -lt 2 ] || [ $# -gt 3 ] && usage
|
||
if [ $# -eq 2 ] && [ -d $1 ]; then
|
||
mkboot_from_dir=1
|
||
elif [ $# -eq 2 ] && [ -s $1 ]; then
|
||
split_boot_to_dir=1
|
||
else
|
||
usage
|
||
fi
|
||
|
||
#mkboot_from_dir, img_info
|
||
if [ ! -z $mkboot_from_dir ]; then
|
||
pout "\nmkbootimg from $1/img_info.\n"
|
||
unpacked_dir=$1
|
||
new_img=$2
|
||
cd $unpacked_dir
|
||
if [ ! -s img_info ]; then
|
||
pout "not found img_info file! can't rebuild img."
|
||
clean
|
||
fi
|
||
eval $(cat img_info)
|
||
if [ -z $kernel ] || [ -z $ramdisk ] || [ -z $base_addr ]; then
|
||
pout "img_info file have not enough parameters."
|
||
clean
|
||
fi
|
||
[ -z $dtb_size ] && dtb_size=0
|
||
if [ -d $ramdisk ]; then
|
||
compression_type=$($file -m $magic ./ramdisk.* | cut -d: -f2 | cut -d" " -f2)
|
||
|
||
compression_ext=$compression_type
|
||
case $compression_type in
|
||
gzip) compression_warning=$compression_type; compression_repack=$gzip;;
|
||
xz) compression_warning=$compression_type; compression_repack="$xz -1 --check=crc32";;
|
||
lzma) compression_warning=$compression_type; compression_repack="$xz --format=lzma";;
|
||
lz4) compression_warning=$compression_type; compression_repack="$lz4 -l";;
|
||
esac;
|
||
if [ -z $compression_warning ]; then
|
||
pout "\n****** HAZARD ******* HAZARD ******* HAZARD ******"
|
||
pout "\nRamdisk is $compression_type format. Can't repack ramdisk."
|
||
pout "This tool currently does not support $compression_type."
|
||
pout "\n****** HAZARD ******* HAZARD ******* HAZARD ******\n"
|
||
exit
|
||
fi
|
||
if [ $compression_type == "gzip" ]; then
|
||
if [ $compression_type == "lzma" ]; then
|
||
if [ $compression_type == "lz4" ]; then
|
||
if [ $compression_type == "xz" ]; then
|
||
pout "\nRamdisk is unknown format. Can't repack ramdisk."
|
||
exit 0
|
||
else
|
||
# XZ
|
||
$mkbootfs $ramdisk | $compression_repack > new_ramdisk.$compression_ext
|
||
ramdisk=new_ramdisk.$compression_ext
|
||
ramdisk_size=$(stat -c "%s" $ramdisk)
|
||
fi
|
||
else
|
||
# LZ4
|
||
$mkbootfs $ramdisk | $compression_repack > new_ramdisk.$compression_ext
|
||
ramdisk=new_ramdisk.$compression_ext
|
||
ramdisk_size=$(stat -c "%s" $ramdisk)
|
||
fi
|
||
else
|
||
# LZMA using xz binary
|
||
$mkbootfs $ramdisk | $compression_repack > new_ramdisk.$compression_ext
|
||
ramdisk=new_ramdisk.$compression_ext
|
||
ramdisk_size=$(stat -c "%s" $ramdisk)
|
||
fi
|
||
else
|
||
# GZIP
|
||
$mkbootfs $ramdisk | $compression_repack > new_ramdisk.$compression_ext
|
||
ramdisk=new_ramdisk.$compression_ext
|
||
ramdisk_size=$(stat -c "%s" $ramdisk)
|
||
fi
|
||
fi
|
||
#cd $unpacked_dir
|
||
print_info
|
||
busybox rm -f $new_img
|
||
mkboot_img $new_img || perr "Make boot.img Error! pls check img_info file."
|
||
#pout "Add SEANDROIDENFORCE tag."
|
||
#printf SEANDROIDENFORCE >> $new_img
|
||
busybox rm -f new_ramdisk.gz
|
||
clean
|
||
fi
|
||
|
||
#split boot.img to dir.
|
||
if [ -e $2 ]; then
|
||
read -p "$2 exists, delete?(N/y)" reply
|
||
case $reply in
|
||
y | Y)
|
||
busybox rm -rf $2
|
||
;;
|
||
*)
|
||
exit
|
||
;;
|
||
esac
|
||
fi
|
||
tempdir=$2
|
||
mkdir -p "$tempdir"
|
||
pout "\nUnpack & decompress $1 to $2\n"
|
||
|
||
#get boot.img info
|
||
cp -f $1 $tempdir/
|
||
cd $tempdir
|
||
bootimg=$(basename $1)
|
||
offset=$($grep -abo ANDROID! $bootimg | cut -f 1 -d :)
|
||
[ -z $offset ] && clean
|
||
if [ $offset -gt 0 ]; then
|
||
dd if=$bootimg of=bootimg bs=$offset skip=1 2>/dev/null
|
||
bootimg=bootimg
|
||
fi
|
||
|
||
kernel_addr=0x$(${od} -A n -X -j 12 -N 4 $bootimg | sed 's/ //g' | sed 's/^0*//g')
|
||
ramdisk_addr=0x$(${od} -A n -X -j 20 -N 4 $bootimg | sed 's/ //g' | sed 's/^0*//g')
|
||
second_addr=0x$(${od} -A n -X -j 28 -N 4 $bootimg | sed 's/ //g' | sed 's/^0*//g')
|
||
tags_addr=0x$(${od} -A n -X -j 32 -N 4 $bootimg | sed 's/ //g' | sed 's/^0*//g')
|
||
|
||
kernel_size=$(${od} -A n -D -j 8 -N 4 $bootimg | sed 's/ //g')
|
||
base_addr=0x$(${od} -A n -x -j 14 -N 2 $bootimg | sed 's/ //g')0000
|
||
ramdisk_size=$(${od} -A n -D -j 16 -N 4 $bootimg | sed 's/ //g')
|
||
second_size=$(${od} -A n -D -j 24 -N 4 $bootimg | sed 's/ //g')
|
||
page_size=$(${od} -A n -D -j 36 -N 4 $bootimg | sed 's/ //g')
|
||
dtb_size=$(${od} -A n -D -j 40 -N 4 $bootimg | sed 's/ //g')
|
||
cmd_line=$(${od} -A n --strings -j 64 -N 512 $bootimg)
|
||
|
||
kernel_offset=$((kernel_addr-base_addr))
|
||
ramdisk_offset=$((ramdisk_addr-base_addr))
|
||
second_offset=$((second_addr-base_addr))
|
||
tags_offset=$((tags_addr-base_addr))
|
||
|
||
#########################################################
|
||
|
||
non_standard_base=$((tags_addr-0x00000100)) # Need this to get the TRUE Base Address
|
||
non_standard_base_addr=$(printf "0x%08x" $non_standard_base)
|
||
base_addr_verify=$(printf "0x%08x" $base_addr)
|
||
base_addr=$(printf "0x%08x" $base_addr)
|
||
|
||
if [ $base_addr == $non_standard_base ]; then
|
||
base_addr=$(printf "0x%08x" $base_addr)
|
||
else
|
||
base_addr=$(printf "0x%08x" $non_standard_base_addr)
|
||
fi
|
||
|
||
# Accurate offsets used on images with non standard mkbootimg.c
|
||
kernel_offset_ns=$((kernel_addr-non_standard_base))
|
||
ramdisk_offset_ns=$((ramdisk_addr-non_standard_base))
|
||
second_offset_ns=$((second_addr-non_standard_base))
|
||
tags_offset_ns=$((tags_addr-non_standard_base))
|
||
|
||
# Do the Offsets match with the Base Address for standard mkbootimg.c?
|
||
kernel_offset_s=$((kernel_addr-0x00008000))
|
||
ramdisk_offset_s=$((ramdisk_addr-0x01000000))
|
||
second_offset_s=$((second_addr-0x00f00000))
|
||
tags_offset_s=$((tags_addr-0x00000100))
|
||
|
||
if [ $non_standard_base -eq $kernel_offset_s ]; then
|
||
kernel_offset=$(printf "0x%08x" $kernel_offset)
|
||
else
|
||
kernel_offset_ns=$(printf "0x%08x" $kernel_offset_ns)
|
||
kernel_offset=$(printf "0x%08x" $kernel_offset_ns)
|
||
kernel_offset_warning=$kernel_offset_ns
|
||
fi
|
||
|
||
if [ $non_standard_base -eq $ramdisk_offset_s ]; then
|
||
ramdisk_offset=$(printf "0x%08x" $ramdisk_offset)
|
||
else
|
||
ramdisk_offset_ns=$(printf "0x%08x" $ramdisk_offset_ns)
|
||
ramdisk_offset=$(printf "0x%08x" $ramdisk_offset_ns)
|
||
ramdisk_offset_warning=$ramdisk_offset_ns
|
||
fi
|
||
|
||
if [ $non_standard_base -eq $second_offset_s ]; then
|
||
second_offset=$(printf "0x%08x" $second_offset)
|
||
else
|
||
second_offset_ns=$(printf "0x%08x" $second_offset_ns)
|
||
second_offset=$(printf "0x%08x" $second_offset_ns)
|
||
second_offset_warning=$second_offset_ns
|
||
fi
|
||
|
||
if [ $base_addr_verify != $non_standard_base_addr ]; then
|
||
base_warning=$non_standard_base_addr
|
||
fi
|
||
|
||
tags_offset=$(printf "0x%08x" $tags_offset_ns)
|
||
|
||
# Below are the known offsets for non standard mkbootimg.c
|
||
if [[ ! -z $kernel_offset_warning ]] || [[ ! -z $ramdisk_offset_warning ]] || [[ ! -z $second_offset_warning ]]; then
|
||
pout "****** WARNING ******* WARNING ******* WARNING ******\n"
|
||
pout "This image is built using NON-standard mkbootimg!\n"
|
||
fi
|
||
if [ ! -z $base_warning ]; then
|
||
pout "BASE is $base_warning"
|
||
fi
|
||
if [ ! -z $kernel_offset_warning ]; then
|
||
pout "KERNEL_OFFSET is $kernel_offset_ns"
|
||
fi
|
||
if [ ! -z $ramdisk_offset_warning ]; then
|
||
pout "RAMDISK_OFFSET is $ramdisk_offset_ns"
|
||
fi
|
||
if [ ! -z $second_offset_warning ]; then
|
||
pout "SECOND_OFFSET is $second_offset_ns"
|
||
fi
|
||
if [[ ! -z $kernel_offset_warning ]] || [[ ! -z $ramdisk_offset_warning ]] || [[ ! -z $second_offset_warning ]]; then
|
||
pout "\nYou can modify mkbootimg.c with the above value(s)"
|
||
pout "\n****** WARNING ******* WARNING ******* WARNING ******\n"
|
||
fi
|
||
|
||
#########################################################
|
||
|
||
k_count=$(((kernel_size+page_size-1)/page_size))
|
||
r_count=$(((ramdisk_size+page_size-1)/page_size))
|
||
s_count=$(((second_size+page_size-1)/page_size))
|
||
d_count=$(((dtb_size+page_size-1)/page_size))
|
||
k_offset=1
|
||
r_offset=$((k_offset+k_count))
|
||
s_offset=$((r_offset+r_count))
|
||
d_offset=$((s_offset+s_count))
|
||
|
||
#zImage
|
||
dd if=$bootimg of=zImage_tmp bs=$page_size skip=$k_offset count=$k_count 2>/dev/null
|
||
dd if=zImage_tmp of=zImage bs=$kernel_size count=1 2>/dev/null
|
||
#ramdisk.gz
|
||
dd if=$bootimg of=ramdisk_tmp bs=$page_size skip=$r_offset count=$r_count 2>/dev/null
|
||
dd if=ramdisk_tmp of=ramdisk.gz bs=$ramdisk_size count=1 2>/dev/null
|
||
#dtb
|
||
if [ $dtb_size -gt 0 ]; then
|
||
dd if=$bootimg of=dt.img_tmp bs=$page_size skip=$d_offset count=$d_count 2>/dev/null
|
||
dd if=dt.img_tmp of=dt.img bs=$dtb_size count=1 2>/dev/null
|
||
dt="$tempdir/dt.img"
|
||
dt=$(basename $dt)
|
||
dt_name="dt=$dt\n"
|
||
dt_size="dtb_size=$dtb_size\n"
|
||
fi
|
||
rm -f *_tmp $(basename $1) $bootimg
|
||
|
||
kernel=zImage
|
||
ramdisk=ramdisk
|
||
[ ! -s $kernel ] && clean
|
||
#print boot.img info
|
||
print_info
|
||
|
||
#write info to img_info,decompression ramdisk.gz
|
||
printf "kernel=zImage\nramdisk=ramdisk\n${dt_name}page_size=$page_size\n\
|
||
kernel_size=$kernel_size\nramdisk_size=$ramdisk_size\n${dt_size}base_addr=$base_addr\nkernel_offset=$kernel_offset\n\
|
||
ramdisk_offset=$ramdisk_offset\ntags_offset=$tags_offset\ncmd_line=\"$cmd_line\"\n" > img_info
|
||
mkdir ramdisk
|
||
cd ramdisk
|
||
|
||
compression_type=$($file -m $magic ../ramdisk.gz | cut -d: -f2 | cut -d" " -f2)
|
||
compression_warning=$compression_type
|
||
|
||
case $compression_type in
|
||
gzip) compression_type=$gzip; compression_ext=gz;;
|
||
xz) compression_type=$xz; compression_ext=xz;;
|
||
lzma) compression_type=$lzma; compression_ext=lzma;;
|
||
lz4) compression_ext=lz4; decomp_ramdisk="$lz4 -d"; extra="< ../ramdisk.cpio";;
|
||
esac;
|
||
|
||
if [ $compression_ext != "lz4" ]; then
|
||
decomp_ramdisk="$compression_type -d -c"
|
||
fi
|
||
decomp_ramdisk2="$cpio -i -d -m --no-absolute-filenames"
|
||
|
||
if [ -z $compression_ext ]; then
|
||
pout "\n****** HAZARD ******* HAZARD ******* HAZARD ******"
|
||
pout "\nRamdisk is $compression_warning format. Can't unpack ramdisk."
|
||
pout "This tool currently does not support $compression_warning."
|
||
pout "\n****** HAZARD ******* HAZARD ******* HAZARD ******\n"
|
||
exit
|
||
fi
|
||
|
||
mv ../ramdisk.gz ../ramdisk.$compression_ext # This is simply to remind the user if they view the folder afterwards
|
||
pout "\nRamdisk is $compression_warning format."
|
||
$decomp_ramdisk "../ramdisk.$compression_ext" | $decomp_ramdisk2 $extra
|
||
|
||
#Unpack Finish to exit.
|
||
pout "Unpack completed.\n"
|
||
exit
|
||
|
||
|
||
|
||
|