forked from MarcoBuster/Magisk
129 lines
4.2 KiB
Bash
129 lines
4.2 KiB
Bash
[ -z $BOOTMODE ] && BOOTMODE=false
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# This path should work in any cases
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TMPDIR=/dev/tmp
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BOOTTMP=$TMPDIR/boottmp
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MAGISKBIN=/data/magisk
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CHROMEDIR=$MAGISKBIN/chromeos
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SYSTEMLIB=/system/lib
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[ -d /system/lib64 ] && SYSTEMLIB=/system/lib64
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# Default permissions
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umask 022
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ui_print_wrapper() {
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type ui_print >/dev/null && ui_print "$1" || echo "$1"
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}
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grep_prop() {
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REGEX="s/^$1=//p"
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shift
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FILES=$@
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if [ -z "$FILES" ]; then
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FILES='/system/build.prop'
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fi
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cat $FILES 2>/dev/null | sed -n "$REGEX" | head -n 1
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}
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find_boot_image() {
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if [ -z "$BOOTIMAGE" ]; then
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for PARTITION in kern-a KERN-A android_boot ANDROID_BOOT kernel KERNEL boot BOOT lnx LNX; do
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BOOTIMAGE=`readlink /dev/block/by-name/$PARTITION || readlink /dev/block/platform/*/by-name/$PARTITION || readlink /dev/block/platform/*/*/by-name/$PARTITION`
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if [ ! -z "$BOOTIMAGE" ]; then break; fi
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done
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fi
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if [ -z "$BOOTIMAGE" ]; then
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FSTAB="/etc/recovery.fstab"
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[ ! -f "$FSTAB" ] && FSTAB="/etc/recovery.fstab.bak"
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[ -f "$FSTAB" ] && BOOTIMAGE=`grep -E '\b/boot\b' "$FSTAB" | grep -oE '/dev/[a-zA-Z0-9_./-]*'`
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fi
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}
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# Environments
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# Set permissions
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chmod -R 755 $CHROMEDIR/futility $MAGISKBIN 2>/dev/null
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# Find the boot image
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find_boot_image
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if [ -z "$BOOTIMAGE" ]; then
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ui_print_wrapper "! Unable to detect boot image"
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exit 1
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fi
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ui_print_wrapper "- Found Boot Image: $BOOTIMAGE"
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rm -rf $BOOTTMP 2>/dev/null
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mkdir -p $BOOTTMP
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cd $BOOTTMP
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ui_print_wrapper "- Unpacking boot image"
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LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --unpack $BOOTIMAGE
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if [ $? -ne 0 ]; then
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ui_print_wrapper "! Unable to unpack boot image"
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exit 1
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fi
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# Update our previous backup to new format if exists
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if [ -f /data/stock_boot.img ]; then
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SHA1=`LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --sha1 /data/stock_boot.img | tail -n 1`
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STOCKDUMP=/data/stock_boot_${SHA1}.img
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mv /data/stock_boot.img $STOCKDUMP
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LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --compress $STOCKDUMP
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fi
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# Detect boot image state
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LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --cpio-test ramdisk.cpio
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case $? in
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0 )
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ui_print_wrapper "! Magisk is not installed!"
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ui_print_wrapper "! Nothing to uninstall"
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exit
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;;
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1 )
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# Find SHA1 of stock boot image
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if [ -z $SHA1 ]; then
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LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --cpio-extract ramdisk.cpio init.magisk.rc init.magisk.rc
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SHA1=`grep_prop "# STOCKSHA1" init.magisk.rc`
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[ ! -z $SHA1 ] && STOCKDUMP=/data/stock_boot_${SHA1}.img
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rm -f init.magisk.rc
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fi
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if [ -f ${STOCKDUMP}.gz ]; then
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ui_print_wrapper "- Boot image backup found!"
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LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --decompress ${STOCKDUMP}.gz stock_boot.img
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else
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ui_print_wrapper "! Boot image backup unavailable"
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ui_print_wrapper "- Restoring ramdisk with backup"
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LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --cpio-restore ramdisk.cpio
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LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --repack $BOOTIMAGE stock_boot.img
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fi
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;;
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2 )
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ui_print_wrapper "- SuperSU patched image detected"
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LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --cpio-restore ramdisk.cpio
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LD_LIBRARY_PATH=$SYSTEMLIB $MAGISKBIN/magiskboot --repack $BOOTIMAGE stock_boot.img
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;;
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esac
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# Sign chromeos boot
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if [ -f chromeos ]; then
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echo > config
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echo > bootloader
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LD_LIBRARY_PATH=$SYSTEMLIB $CHROMEDIR/futility vbutil_kernel --pack stock_boot.img.signed --keyblock $CHROMEDIR/kernel.keyblock --signprivate $CHROMEDIR/kernel_data_key.vbprivk --version 1 --vmlinuz stock_boot.img --config config --arch arm --bootloader bootloader --flags 0x1
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rm -f stock_boot.img
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mv stock_boot.img.signed stock_boot.img
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fi
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ui_print_wrapper "- Flashing stock/reverted image"
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[ ! -L "$BOOTIMAGE" ] && dd if=/dev/zero of=$BOOTIMAGE bs=4096 2>/dev/null
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dd if=stock_boot.img of=$BOOTIMAGE bs=4096
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ui_print_wrapper "- Removing Magisk files"
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rm -rf /cache/magisk.log /cache/last_magisk.log /cache/magiskhide.log /cache/.disable_magisk \
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/cache/magisk /cache/magisk_merge /cache/magisk_mount /cache/unblock /cache/magisk_uninstaller.sh \
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/data/Magisk.apk /data/magisk.apk /data/magisk.img /data/magisk_merge.img \
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/data/busybox /data/magisk /data/custom_ramdisk_patch.sh 2>/dev/null
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$BOOTMODE && reboot
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