91 lines
2.4 KiB
Bash
91 lines
2.4 KiB
Bash
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#!/bin/bash
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######################################################################
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# __________ __ ___.
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# Open \______ \ ____ ____ | | _\_ |__ _______ ___
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# Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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# Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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# Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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# \/ \/ \/ \/ \/
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#
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# * Script to unpack a Samsung YP-R0 firmware file (R0.ROM) */
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######################################################################
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# The file was originally called MuonDecrypt.sh
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#
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# I'm not sure about the original author of this file, as it wasn't included in Samsung package.
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# But I guess it was done by JeanLouis, an Italian user of the Hardware Upgrade Forum. If needed, we should search throug old posts for that...
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#
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# bail out early
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set -e
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# some sanity checks
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if [ $# -lt 1 ] || [ $# -gt 2 ]; then
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echo "Usage $0 <rom file> [out dir]"
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exit 1
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fi
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ROM=$1
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DIR=${2:-"."}
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DIR=${DIR%/}
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MBOOT="$DIR/MBoot.bin"
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MBOOT_TMP="${TMP_DIR:-$DIR}/MBoot.tmp"
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LINUX="$DIR/zImage"
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CRAMFS="$DIR/cramfs-fsl.rom"
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SYSDATA="$DIR/SYSDATA.bin"
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MD5SUMS="$DIR/MD5SUMS"
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TMP="${TMP_DIR:-$DIR}/_$$.tmp"
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if [ ! -f ./extract_section ]; then
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echo "Couldn't find extract_section binary (try 'make')"
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exit 1
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fi
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if [ ! -f ./MuonEncrypt ]; then
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echo "Couldn't find MuonEncrypt binary (try 'make')"
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exit 1
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fi
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mkdir -p $DIR
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if [ ! -w $DIR ]; then
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echo "Target dir not writable"
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exit 1
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fi
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ExtractAndDecrypt() {
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START=$(expr $START - $2)
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echo "Extracting $1..."
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./extract_section $ROM $TMP $START $2
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echo "Decrypt $1..."
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./MuonEncrypt $TMP > $1
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}
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size=( `head -n 9 $ROM | tail -n 4 | while read LINE; do echo $LINE | cut -d\( -f 2 | cut -d\) -f 1; done`)
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checksum=( `head -n 9 $ROM | tail -n 4 | while read LINE; do echo $LINE | cut -d\( -f 3 | cut -d\) -f 1; done`)
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echo "${checksum[0]} $MBOOT" > $MD5SUMS
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echo "${checksum[1]} $LINUX" >> $MD5SUMS
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echo "${checksum[2]} $CRAMFS" >> $MD5SUMS
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echo "${checksum[3]} $SYSDATA" >> $MD5SUMS
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START=`stat -c%s $ROM`
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ExtractAndDecrypt $SYSDATA ${size[3]}
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ExtractAndDecrypt $CRAMFS ${size[2]}
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ExtractAndDecrypt $LINUX ${size[1]}
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ExtractAndDecrypt $MBOOT_TMP ${size[0]}
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rm $TMP
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echo "Create $MBOOT..."
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dd if=$MBOOT_TMP of=$MBOOT bs=96 count=1 2>/dev/null
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dd if=$MBOOT_TMP of=$MBOOT bs=1088 skip=1 seek=1 2>/dev/null
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rm $MBOOT_TMP
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echo "Check integrity:"
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md5sum -c $MD5SUMS
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