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phoenix_firmware_dumper
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added dtbo unpack tasks 

Signed-off-by: Mohd Faraz <androiabledroid@gmail.com>
This commit is contained in:
Mohd Faraz 2020-12-06 00:55:57 +05:30
parent f965aa46b1
commit ed7d56cced
1 changed files with 50 additions and 23 deletions
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73
utils/unpackboot.sh
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@ -54,36 +54,48 @@ 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 $bootimg | sed 's/ //g')
dtbo_size=$(od -A n -D -j 1632 -N 4 $bootimg | sed 's/ //g')
[ $dtbo_size -gt 0 ] && dtbo_addr=0x$(od -A n -X -j 1636 -N 4 $bootimg | sed 's/ //g' | sed -e 's/^0*//g')
cmd_line=$(od -A n -S1 -j 64 -N 512 $bootimg)
board=$(od -A n -S1 -j 48 -N 16 $bootimg)
version=$(od -A n -D -j 40 -N 1 $bootimg | sed 's/ //g')
if [ $version -gt 1 ]; then
dtb_size=$(od -A n -D -j 1648 -N 4 $bootimg | sed 's/ //g')
dtb_addr=0x$(od -A n -X -j 1652 -N 4 $bootimg | sed 's/ //g' | sed 's/^0*//g')
fi
base_addr=$((kernel_addr-0x00008000))
kernel_offset=$((kernel_addr-base_addr))
ramdisk_offset=$((ramdisk_addr-base_addr))
second_offset=$((second_addr-base_addr))
tags_offset=$((tags_addr-base_addr))
dtbo_offset=$((dtbo_addr-base_addr))
dtb_offset=$((dtb_addr-base_addr))
base_addr=$(printf "%08x" $base_addr)
kernel_offset=$(printf "%08x" $kernel_offset)
ramdisk_offset=$(printf "%08x" $ramdisk_offset)
second_offset=$(printf "%08x" $second_offset)
tags_offset=$(printf "%08x" $tags_offset)
dtbo_offset=$(printf "%08x" $dtbo_offset)
dtb_offset=$(printf "%08x" $dtb_offset)
base_addr=0x${base_addr:0-8}
kernel_offset=0x${kernel_offset:0-8}
ramdisk_offset=0x${ramdisk_offset:0-8}
second_offset=0x${second_offset:0-8}
tags_offset=0x${tags_offset:0-8}
dtbo_offset=0x${dtbo_offset:0-8}
dtb_offset=0x${dtb_offset:0-8}
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))
do_count=$(((dtbo_size+page_size-1)/page_size))
k_offset=1
r_offset=$((k_offset+k_count))
s_offset=$((r_offset+r_count))
d_offset=$((s_offset+s_count))
do_offset=$((s_offset+s_count))
d_offset=$((do_offset+do_count))
#kernel
dd if=$bootimg of=kernel_tmp bs=$page_size skip=$k_offset count=$k_count 2>/dev/null
dd if=kernel_tmp of=kernel bs=$kernel_size count=1 2>/dev/null
@ -103,8 +115,18 @@ if [ $dtb_size -gt 0 ]; then
dd if=dt.img_tmp of=dt.img bs=$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"
[ $version -gt 1 ] && dt=dtb.img && mv $tempdir/dt.img $tempdir/dtb.img &&\
dt_size="dtb_offset=${dtb_offset}\n"${dt_size}
dt_name="dt=$dt\n"
fi
#dtbo
if [ $dtbo_size -gt 0 ]; then
dd if=$bootimg of=dtbo.img_tmp bs=$page_size skip=$do_offset count=$do_count 2>/dev/null
dd if=dtbo.img_tmp of=dtbo.img bs=$dtbo_size count=1 2>/dev/null
dtbo="$tempdir/dtbo.img"
dtbo=$(basename $dtbo)
do_name="dtbo=$dtbo\n"
fi
rm -f *_tmp $(basename $1) $bootimg
@ -113,31 +135,36 @@ ramdisk=ramdisk
[ ! -s $kernel ] && exit
# Print boot.img/recovery.img info
[ ! -z "$board" ] && pout " board : $board"
pout " kernel : $kernel"
pout " ramdisk : $ramdisk"
pout " page size : $page_size"
pout " kernel size : $kernel_size"
pout " ramdisk size : $ramdisk_size"
[ ! -z "$board" ] && pout " board : $board"
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"
pout " second_size : $second_size"
pout " base : $base_addr"
pout " kernel offset : $kernel_offset"
pout " ramdisk offset : $ramdisk_offset"
[ $version -gt 0 ] && [ $dtbo_size -gt 0 ] && pout " boot header version : $version" && \
pout " dtbo : $dtbo" && \
pout " dtbo size : $dtbo_size" && \
pout " dtbo offset : $dtbo_offset"
[ $dtb_size -gt 0 ] && pout " dtb img : $dt" && \
pout " dtb size : $dtb_size"
[ $version -gt 1 ] && pout " dtb offset : $dtb_offset"
[ ! -z $second_size ] && [ $second_size -gt 0 ] && \
pout " second_offset : $second_offset"
pout " tags offset : $tags_offset"
[ $dtb_size -gt 0 ] && pout " dtb img : $dt"
pout " cmd line : $cmd_line"
pout " second_offset : $second_offset"
pout " tags offset : $tags_offset"
pout " cmd line : $cmd_line"
esq="'\"'\"'"
escaped_cmd_line=$(echo $cmd_line | sed "s/'/$esq/g")
# Write info to img_info, decompress ramdisk.packed
printf "kernel=kernel\nramdisk=ramdisk\n${s_name}${dt_name}page_size=$page_size\n\
printf "kernel=kernel\nramdisk=ramdisk\n${s_name}page_size=$page_size\n${do_name}${dt_name}\
kernel_size=$kernel_size\nramdisk_size=$ramdisk_size\n${s_size}${dt_size}base_addr=$base_addr\nkernel_offset=$kernel_offset\n\
ramdisk_offset=$ramdisk_offset\ntags_offset=$tags_offset\ncmd_line=\'$escaped_cmd_line\'\nboard=\"$board\"\n" > img_info
ramdisk_offset=$ramdisk_offset\ntags_offset=$tags_offset\ndtbo_offset=$dtbo_offset\ncmd_line=\'$escaped_cmd_line\'\nboard=\"$board\"\n" > img_info
# MTK ramdisk (MTK Header Size 512, MAGIC 0x58881688)
mtk_header_magic="58881688"