287 lines
8.4 KiB
Bash
287 lines
8.4 KiB
Bash
#!/sbin/sh
|
|
##########################################################################################
|
|
#
|
|
# Magisk Uninstaller
|
|
# by topjohnwu
|
|
#
|
|
# This zip will remove all Magisk related files and revert boot image
|
|
#
|
|
##########################################################################################
|
|
|
|
INSTALLER=/tmp/uninstall
|
|
|
|
# Boot Image Variables
|
|
CHROMEDIR=$INSTALLER/chromeos
|
|
NEWBOOT=$TMPDIR/boottmp/new-boot.img
|
|
UNPACKDIR=$TMPDIR/boottmp/bootunpack
|
|
RAMDISK=$TMPDIR/boottmp/ramdisk
|
|
|
|
# Default permissions
|
|
umask 022
|
|
|
|
##########################################################################################
|
|
# Flashable update-binary preparation
|
|
##########################################################################################
|
|
|
|
OUTFD=$2
|
|
ZIP=$3
|
|
|
|
readlink /proc/$$/fd/$OUTFD 2>/dev/null | grep /tmp >/dev/null
|
|
if [ "$?" -eq "0" ]; then
|
|
OUTFD=0
|
|
|
|
for FD in `ls /proc/$$/fd`; do
|
|
readlink /proc/$$/fd/$FD 2>/dev/null | grep pipe >/dev/null
|
|
if [ "$?" -eq "0" ]; then
|
|
ps | grep " 3 $FD " | grep -v grep >/dev/null
|
|
if [ "$?" -eq "0" ]; then
|
|
OUTFD=$FD
|
|
break
|
|
fi
|
|
fi
|
|
done
|
|
fi
|
|
|
|
mkdir -p $INSTALLER
|
|
cd $INSTALLER
|
|
unzip -o "$ZIP"
|
|
|
|
##########################################################################################
|
|
# Functions
|
|
##########################################################################################
|
|
|
|
ui_print() {
|
|
echo -n -e "ui_print $1\n" >> /proc/self/fd/$OUTFD
|
|
echo -n -e "ui_print\n" >> /proc/self/fd/$OUTFD
|
|
}
|
|
|
|
getvar() {
|
|
local VARNAME=$1
|
|
local VALUE=$(eval echo \$"$VARNAME");
|
|
for FILE in /data/.magisk /cache/.magisk /system/.magisk; do
|
|
if [ -z "$VALUE" ]; then
|
|
LINE=$(cat $FILE 2>/dev/null | grep "$VARNAME=")
|
|
if [ ! -z "$LINE" ]; then
|
|
VALUE=${LINE#*=}
|
|
fi
|
|
fi
|
|
done
|
|
eval $VARNAME=\$VALUE
|
|
}
|
|
|
|
find_boot_image() {
|
|
if [ -z "$BOOTIMAGE" ]; then
|
|
for PARTITION in kern-a KERN-A android_boot ANDROID_BOOT kernel KERNEL boot BOOT lnx LNX; do
|
|
BOOTIMAGE=`readlink /dev/block/by-name/$PARTITION || readlink /dev/block/platform/*/by-name/$PARTITION || readlink /dev/block/platform/*/*/by-name/$PARTITION`
|
|
if [ ! -z "$BOOTIMAGE" ]; then break; fi
|
|
done
|
|
fi
|
|
if [ -z "$BOOTIMAGE" ]; then
|
|
FSTAB="/etc/recovery.fstab"
|
|
[ ! -f "$FSTAB" ] && FSTAB="/etc/recovery.fstab.bak"
|
|
[ -f "$FSTAB" ] && BOOTIMAGE=`grep -E '\b/boot\b' "$FSTAB" | grep -oE '/dev/[a-zA-Z0-9_./-]*'`
|
|
fi
|
|
}
|
|
|
|
is_mounted() {
|
|
if [ ! -z "$2" ]; then
|
|
cat /proc/mounts | grep $1 | grep $2, >/dev/null
|
|
else
|
|
cat /proc/mounts | grep $1 >/dev/null
|
|
fi
|
|
return $?
|
|
}
|
|
|
|
grep_prop() {
|
|
REGEX="s/^$1=//p"
|
|
shift
|
|
FILES=$@
|
|
if [ -z "$FILES" ]; then
|
|
FILES='/system/build.prop'
|
|
fi
|
|
cat $FILES 2>/dev/null | sed -n $REGEX | head -n 1
|
|
}
|
|
|
|
unpack_boot() {
|
|
rm -rf $UNPACKDIR $RAMDISK 2>/dev/null
|
|
mkdir -p $UNPACKDIR
|
|
mkdir -p $RAMDISK
|
|
cd $UNPACKDIR
|
|
LD_LIBRARY_PATH=$SYSTEMLIB $BINDIR/bootimgtools --extract $1
|
|
|
|
cd $RAMDISK
|
|
gunzip -c < $UNPACKDIR/ramdisk.gz | cpio -i
|
|
}
|
|
|
|
repack_boot() {
|
|
cd $RAMDISK
|
|
find . | cpio -o -H newc 2>/dev/null | gzip -9 > $UNPACKDIR/ramdisk.gz
|
|
cd $UNPACKDIR
|
|
LD_LIBRARY_PATH=$SYSTEMLIB $BINDIR/bootimgtools --repack $ORIGBOOT
|
|
if [ -f chromeos ]; then
|
|
echo " " > config
|
|
echo " " > bootloader
|
|
LD_LIBRARY_PATH=$SYSTEMLIB $CHROMEDIR/futility vbutil_kernel --pack new-boot.img.signed --keyblock $CHROMEDIR/kernel.keyblock --signprivate $CHROMEDIR/kernel_data_key.vbprivk --version 1 --vmlinuz new-boot.img --config config --arch arm --bootloader bootloader --flags 0x1
|
|
rm -f new-boot.img
|
|
mv new-boot.img.signed new-boot.img
|
|
fi
|
|
if ($SAMSUNG); then
|
|
SAMSUNG_CHECK=$(cat new-boot.img | grep SEANDROIDENFORCE)
|
|
if [ $? -ne 0 ]; then
|
|
echo -n "SEANDROIDENFORCE" >> new-boot.img
|
|
fi
|
|
fi
|
|
if ($LGE_G); then
|
|
# Prevent secure boot error on LG G2/G3.
|
|
# Just for know, It's a pattern which bootloader verifies at boot. Thanks to LG hackers.
|
|
echo -n -e "\x41\xa9\xe4\x67\x74\x4d\x1d\x1b\xa4\x29\xf2\xec\xea\x65\x52\x79" >> new-boot.img
|
|
fi
|
|
mv new-boot.img $NEWBOOT
|
|
}
|
|
|
|
revert_boot() {
|
|
rm -rf $TMPDIR/boottmp 2>/dev/null
|
|
mkdir -p $TMPDIR/boottmp
|
|
|
|
ORIGBOOT=$BOOTIMAGE
|
|
|
|
ui_print "- Unpacking boot image"
|
|
unpack_boot $ORIGBOOT
|
|
|
|
if [ -d ".backup" ]; then
|
|
ui_print "- Restoring ramdisk with backup"
|
|
cp -af .backup/. .
|
|
rm -rf magisk init.magisk.rc sbin/magic_mask.sh .backup 2>/dev/null
|
|
else
|
|
ui_print "! No ramdisk backup found"
|
|
ui_print "! Unable to revert completely"
|
|
ui_print "! Will still remove Magisk additions"
|
|
# Removing boot image modifications
|
|
rm -rf magisk init.magisk.rc sbin/magic_mask.sh 2>/dev/null
|
|
fi
|
|
|
|
ui_print "- Repacking boot image"
|
|
repack_boot
|
|
}
|
|
|
|
##########################################################################################
|
|
# Main
|
|
##########################################################################################
|
|
|
|
ui_print "*****************************"
|
|
ui_print " Magisk Uninstaller "
|
|
ui_print "*****************************"
|
|
|
|
if [ ! -d "$INSTALLER/arm" ]; then
|
|
ui_print "! Failed: Unable to extract zip file!"
|
|
exit 1
|
|
fi
|
|
|
|
ui_print "- Mounting /system(ro), /cache, /data"
|
|
mount -o ro /system 2>/dev/null
|
|
mount /cache 2>/dev/null
|
|
mount /data 2>/dev/null
|
|
|
|
if [ ! -f '/system/build.prop' ]; then
|
|
ui_print "! Failed: /system could not be mounted!"
|
|
exit 1
|
|
fi
|
|
|
|
SAMSUNG=false
|
|
SAMSUNG_CHECK=$(cat /system/build.prop | grep "ro.build.fingerprint=" | grep -i "samsung")
|
|
if [ $? -eq 0 ]; then
|
|
SAMSUNG=true
|
|
fi
|
|
|
|
LGE_G=false
|
|
RBRAND=$(grep_prop ro.product.brand)
|
|
RMODEL=$(grep_prop ro.product.device)
|
|
if [ "$RBRAND" = "lge" ] || [ "$RBRAND" = "LGE" ]; then
|
|
if [ "$RMODEL" = "*D80*" ] ||
|
|
[ "$RMODEL" = "*S98*" ] ||
|
|
[ "$RMODEL" = "*D85*" ] ||
|
|
[ "$RMODEL" = "*F40*" ]; then
|
|
LGE_G=true
|
|
ui_print "! Bump device detected"
|
|
fi
|
|
fi
|
|
|
|
API=$(grep_prop ro.build.version.sdk)
|
|
ABI=$(grep_prop ro.product.cpu.abi | cut -c-3)
|
|
ABI2=$(grep_prop ro.product.cpu.abi2 | cut -c-3)
|
|
ABILONG=$(grep_prop ro.product.cpu.abi)
|
|
|
|
ARCH=arm
|
|
IS64BIT=false
|
|
if [ "$ABI" = "x86" ]; then ARCH=x86; fi;
|
|
if [ "$ABI2" = "x86" ]; then ARCH=x86; fi;
|
|
if [ "$ABILONG" = "arm64-v8a" ]; then ARCH=arm64; IS64BIT=true; fi;
|
|
if [ "$ABILONG" = "x86_64" ]; then ARCH=x64; IS64BIT=true; fi;
|
|
|
|
ui_print "- Device platform: $ARCH"
|
|
|
|
BINDIR=$INSTALLER/$ARCH
|
|
chmod -R 755 $CHROMEDIR/futility $BINDIR
|
|
|
|
SYSTEMLIB=/system/lib
|
|
($IS64BIT) && SYSTEMLIB=/system/lib64
|
|
|
|
find_boot_image
|
|
if [ -z "$BOOTIMAGE" ]; then
|
|
ui_print "! Unable to detect boot image"
|
|
exit 1
|
|
fi
|
|
|
|
##########################################################################################
|
|
# Detection all done, start installing
|
|
##########################################################################################
|
|
|
|
ui_print "- Found Boot Image: $BOOTIMAGE"
|
|
|
|
if (is_mounted /data); then
|
|
PATH=/data/busybox:$PATH
|
|
cp -af /data/stock_boot_*.gz /data/stock_boot.img.gz 2>/dev/null
|
|
gzip -d /data/stock_boot.img.gz 2>/dev/null
|
|
rm -rf /data/stock_boot.img.gz 2>/dev/null
|
|
if [ -f "/data/stock_boot.img" ]; then
|
|
ui_print "- Boot image backup found!"
|
|
NEWBOOT=/data/stock_boot.img
|
|
if ($LGE_G); then
|
|
# Prevent secure boot error on LG G2/G3.
|
|
# Just for know, It's a pattern which bootloader verifies at boot. Thanks to LG hackers.
|
|
echo -n -e "\x41\xa9\xe4\x67\x74\x4d\x1d\x1b\xa4\x29\xf2\xec\xea\x65\x52\x79" >> $NEWBOOT
|
|
fi
|
|
else
|
|
ui_print "! Boot image backup unavalible, try using ramdisk backup"
|
|
revert_boot
|
|
fi
|
|
ui_print "- Removing Magisk files"
|
|
rm -rf /cache/magisk.log /cache/last_magisk.log /cache/magiskhide.log \
|
|
/cache/magisk /cache/magisk_merge /cache/magisk_mount /cache/unblock \
|
|
/data/Magisk.apk /data/magisk.img /data/magisk_merge.img \
|
|
/data/busybox /data/magisk /data/custom_ramdisk_patch.sh 2>/dev/null
|
|
else
|
|
ui_print "! Data unavailable"
|
|
ui_print "! Impossible to restore original boot image"
|
|
ui_print "! Try using ramdisk backup"
|
|
revert_boot
|
|
ui_print "- Removing Magisk files"
|
|
rm -rf /cache/magisk.log /cache/last_magisk.log /cache/magiskhide.log \
|
|
/cache/magisk /cache/magisk_merge /cache/magisk_mount /cache/unblock 2>/dev/null
|
|
ui_print "*****************************************"
|
|
ui_print " Magisk is not fully removed yet "
|
|
ui_print " Please manually remove /data/magisk.img "
|
|
ui_print "*****************************************"
|
|
fi
|
|
|
|
chmod 644 $NEWBOOT
|
|
|
|
ui_print "- Flashing reverted image"
|
|
[ ! -L "$BOOTIMAGE" ] && dd if=/dev/zero of=$BOOTIMAGE bs=4096 2>/dev/null
|
|
dd if=$NEWBOOT of=$BOOTIMAGE bs=4096
|
|
|
|
umount /system
|
|
|
|
ui_print "- Done"
|
|
exit 0
|