mirror of
https://github.com/topjohnwu/Magisk
synced 2024-11-11 17:38:25 +01:00
583 lines
17 KiB
Bash
583 lines
17 KiB
Bash
#!/sbin/sh
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##########################################################################################
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#
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# Magisk Boot Image Patcher
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# by topjohnwu
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#
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# This zip will patch your boot image with Magisk support
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#
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##########################################################################################
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if [ -z "$BOOTMODE" ]; then
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BOOTMODE=false
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fi
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TMPDIR=/tmp
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($BOOTMODE) && TMPDIR=/dev/tmp
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INSTALLER=$TMPDIR/magisk
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COREDIR=/magisk/.core
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# Boot Image Variables
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CHROMEDIR=$INSTALLER/chromeos
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NEWBOOT=$TMPDIR/boottmp/new-boot.img
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UNPACKDIR=$TMPDIR/boottmp/bootunpack
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RAMDISK=$TMPDIR/boottmp/ramdisk
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# Default permissions
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umask 022
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##########################################################################################
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# Flashable update-binary preparation
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##########################################################################################
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OUTFD=$2
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ZIP=$3
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readlink /proc/$$/fd/$OUTFD 2>/dev/null | grep /tmp >/dev/null
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if [ "$?" -eq "0" ]; then
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OUTFD=0
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for FD in `ls /proc/$$/fd`; do
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readlink /proc/$$/fd/$FD 2>/dev/null | grep pipe >/dev/null
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if [ "$?" -eq "0" ]; then
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ps | grep " 3 $FD " | grep -v grep >/dev/null
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if [ "$?" -eq "0" ]; then
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OUTFD=$FD
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break
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fi
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fi
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done
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fi
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mkdir -p $INSTALLER
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cd $INSTALLER
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unzip -o "$ZIP"
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##########################################################################################
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# Functions
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##########################################################################################
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ui_print() {
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if ($BOOTMODE); then
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echo "$1"
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else
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echo -n -e "ui_print $1\n" >> /proc/self/fd/$OUTFD
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echo -n -e "ui_print\n" >> /proc/self/fd/$OUTFD
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fi
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}
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getvar() {
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local VARNAME=$1
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local VALUE=$(eval echo \$"$VARNAME");
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for FILE in /dev/.magisk /data/.magisk /cache/.magisk /system/.magisk; do
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if [ -z "$VALUE" ]; then
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LINE=$(cat $FILE 2>/dev/null | grep "$VARNAME=")
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if [ ! -z "$LINE" ]; then
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VALUE=${LINE#*=}
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fi
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fi
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done
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eval $VARNAME=\$VALUE
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}
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find_boot_image() {
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if [ -z "$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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is_mounted() {
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if [ ! -z "$2" ]; then
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cat /proc/mounts | grep $1 | grep $2, >/dev/null
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else
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cat /proc/mounts | grep $1 >/dev/null
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fi
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return $?
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}
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mount_image() {
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if [ ! -d "$2" ]; then
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mount -o rw,remount rootfs /
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mkdir -p $2 2>/dev/null
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($BOOTMODE) && mount -o ro,remount rootfs /
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[ ! -d "$2" ] && return 1
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fi
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if (! is_mounted $2); then
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LOOPDEVICE=
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for LOOP in 0 1 2 3 4 5 6 7; do
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if (! is_mounted $2); then
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LOOPDEVICE=/dev/block/loop$LOOP
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if [ ! -f "$LOOPDEVICE" ]; then
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mknod $LOOPDEVICE b 7 $LOOP 2>/dev/null
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fi
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losetup $LOOPDEVICE $1
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if [ "$?" -eq "0" ]; then
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mount -t ext4 -o loop $LOOPDEVICE $2
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if (! is_mounted $2); then
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/system/bin/toolbox mount -t ext4 -o loop $LOOPDEVICE $2
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fi
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if (! is_mounted $2); then
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/system/bin/toybox mount -t ext4 -o loop $LOOPDEVICE $2
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fi
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fi
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if (is_mounted $2); then
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ui_print "- Mounting $1 to $2"
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break;
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fi
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fi
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done
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fi
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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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file_contain() {
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grep "$1" "$2" >/dev/null 2>&1
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return $?
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}
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unpack_boot() {
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rm -rf $UNPACKDIR $RAMDISK 2>/dev/null
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mkdir -p $UNPACKDIR
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mkdir -p $RAMDISK
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cd $UNPACKDIR
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LD_LIBRARY_PATH=$SYSTEMLIB $BINDIR/bootimgtools --extract $1
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[ ! -f $UNPACKDIR/ramdisk.gz ] && return 1
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cd $RAMDISK
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gunzip -c < $UNPACKDIR/ramdisk.gz | cpio -i
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}
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repack_boot() {
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if (! $SUPERSU); then
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cd $RAMDISK
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find . | cpio -o -H newc 2>/dev/null | gzip -9 > $UNPACKDIR/ramdisk.gz
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fi
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cd $UNPACKDIR
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LD_LIBRARY_PATH=$SYSTEMLIB $BINDIR/bootimgtools --repack $BOOTIMAGE
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if [ -f chromeos ]; then
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echo " " > config
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echo " " > bootloader
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LD_LIBRARY_PATH=$SYSTEMLIB $CHROMEDIR/futility vbutil_kernel --pack new-boot.img.signed --keyblock $CHROMEDIR/kernel.keyblock --signprivate $CHROMEDIR/kernel_data_key.vbprivk --version 1 --vmlinuz new-boot.img --config config --arch arm --bootloader bootloader --flags 0x1
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rm -f new-boot.img
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mv new-boot.img.signed new-boot.img
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fi
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if ($SAMSUNG); then
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SAMSUNG_CHECK=$(cat new-boot.img | grep SEANDROIDENFORCE)
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if [ $? -ne 0 ]; then
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echo -n "SEANDROIDENFORCE" >> new-boot.img
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fi
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fi
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if ($LGE_G); then
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# Prevent secure boot error on LG G2/G3.
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# Just for know, It's a pattern which bootloader verifies at boot. Thanks to LG hackers.
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echo -n -e "\x41\xa9\xe4\x67\x74\x4d\x1d\x1b\xa4\x29\xf2\xec\xea\x65\x52\x79" >> new-boot.img
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fi
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mv new-boot.img $NEWBOOT
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}
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remove_system_su() {
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if [ -f /system/bin/su -o -f /system/xbin/su ] && [ ! -f /su/bin/su ]; then
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ui_print "! System installed root detected, mount rw :("
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mount -o rw,remount /system
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# SuperSU
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if [ -e /system/bin/.ext/.su ]; then
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mv -f /system/bin/app_process32_original /system/bin/app_process32 2>/dev/null
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mv -f /system/bin/app_process64_original /system/bin/app_process64 2>/dev/null
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mv -f /system/bin/install-recovery_original.sh /system/bin/install-recovery.sh 2>/dev/null
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cd /system/bin
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if [ -e app_process64 ]; then
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ln -sf app_process64 app_process
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else
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ln -sf app_process32 app_process
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fi
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fi
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rm -rf /system/.pin /system/bin/.ext /system/etc/.installed_su_daemon /system/etc/.has_su_daemon \
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/system/xbin/daemonsu /system/xbin/su /system/xbin/sugote /system/xbin/sugote-mksh /system/xbin/supolicy \
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/system/bin/app_process_init /system/bin/su /cache/su /system/lib/libsupol.so /system/lib64/libsupol.so \
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/system/su.d /system/etc/install-recovery.sh /system/etc/init.d/99SuperSUDaemon /cache/install-recovery.sh \
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/system/.supersu /cache/.supersu /data/.supersu \
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/system/app/Superuser.apk /system/app/SuperSU /cache/Superuser.apk 2>/dev/null
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fi
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}
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##########################################################################################
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# Detection
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##########################################################################################
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ui_print "*****************************"
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ui_print "MAGISK_VERSION_STUB"
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ui_print "*****************************"
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if [ ! -d "$INSTALLER/common" ]; then
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ui_print "! Failed: Unable to extract zip file!"
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exit 1
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fi
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ui_print "- Mounting /system(ro), /cache, /data"
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mount -o ro /system 2>/dev/null
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mount /cache 2>/dev/null
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mount /data 2>/dev/null
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if [ ! -f '/system/build.prop' ]; then
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ui_print "! Failed: /system could not be mounted!"
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exit 1
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fi
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if [ -z "$NOOVERRIDE" ]; then
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# read override variables
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getvar KEEPVERITY
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getvar KEEPFORCEENCRYPT
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getvar BOOTIMAGE
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fi
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if [ -z "$KEEPVERITY" ]; then
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# we don't keep dm-verity by default
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KEEPVERITY=false
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fi
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if [ -z "$KEEPFORCEENCRYPT" ]; then
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# we don't keep forceencrypt by default
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KEEPFORCEENCRYPT=false
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fi
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# Check if system root is installed and remove
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remove_system_su
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SAMSUNG=false
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SAMSUNG_CHECK=$(cat /system/build.prop | grep "ro.build.fingerprint=" | grep -i "samsung")
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if [ $? -eq 0 ]; then
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SAMSUNG=true
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fi
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LGE_G=false
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RBRAND=$(grep_prop ro.product.brand)
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RMODEL=$(grep_prop ro.product.device)
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if [ "$RBRAND" = "lge" ] || [ "$RBRAND" = "LGE" ]; then
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if [ "$RMODEL" = "*D80*" ] ||
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[ "$RMODEL" = "*S98*" ] ||
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[ "$RMODEL" = "*D85*" ] ||
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[ "$RMODEL" = "*F40*" ]; then
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LGE_G=true
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ui_print "! Bump device detected"
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fi
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fi
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API=$(grep_prop ro.build.version.sdk)
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ABI=$(grep_prop ro.product.cpu.abi | cut -c-3)
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ABI2=$(grep_prop ro.product.cpu.abi2 | cut -c-3)
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ABILONG=$(grep_prop ro.product.cpu.abi)
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ARCH=arm
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IS64BIT=false
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if [ "$ABI" = "x86" ]; then ARCH=x86; fi;
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if [ "$ABI2" = "x86" ]; then ARCH=x86; fi;
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if [ "$ABILONG" = "arm64-v8a" ]; then ARCH=arm64; IS64BIT=true; fi;
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if [ "$ABILONG" = "x86_64" ]; then ARCH=x64; IS64BIT=true; fi;
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if [ "$API" -lt "21" ]; then
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ui_print "! Magisk is only for Lollipop 5.0+ (SDK 21+)"
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exit 1
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fi
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ui_print "- Device platform: $ARCH"
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BINDIR=$INSTALLER/$ARCH
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chmod -R 755 $CHROMEDIR/futility $BINDIR
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SYSTEMLIB=/system/lib
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($IS64BIT) && SYSTEMLIB=/system/lib64
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find_boot_image
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if [ -z "$BOOTIMAGE" ]; then
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ui_print "! Unable to detect boot image"
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exit 1
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fi
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##########################################################################################
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# Environment
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##########################################################################################
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ui_print "- Constructing environment"
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if (is_mounted /data); then
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rm -rf /data/busybox /data/magisk 2>/dev/null
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mkdir -p /data/busybox /data/magisk
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cp -af $BINDIR/busybox $BINDIR/sepolicy-inject $BINDIR/resetprop \
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$INSTALLER/common/init.magisk.rc $INSTALLER/common/magic_mask.sh /data/magisk
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cp -af $INSTALLER/common/magisk.apk /data/magisk.apk
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/data/magisk/busybox --install -s /data/busybox
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ln -s /data/magisk/busybox /data/busybox/busybox
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# Prevent issues
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rm -f /data/busybox/su /data/busybox/sh /data/busybox/reboot
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chcon -hR u:object_r:system_file:s0 /data/magisk /data/busybox
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chmod -R 755 /data/magisk /data/busybox
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# PATH=/data/busybox:$PATH
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else
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rm -rf /cache/data_bin 2>/dev/null
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mkdir -p /cache/data_bin
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cp -af $BINDIR/busybox $BINDIR/sepolicy-inject $BINDIR/resetprop \
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$INSTALLER/common/custom_ramdisk_patch.sh $INSTALLER/common/init.magisk.rc \
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$INSTALLER/common/magic_mask.sh /cache/data_bin
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cp -af $INSTALLER/common/magisk.apk /cache/magisk.apk
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chmod -R 755 /cache/data_bin
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fi
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##########################################################################################
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# Image
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##########################################################################################
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# Fix SuperSU.....
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($BOOTMODE) && $BINDIR/sepolicy-inject -s fsck --live
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if (is_mounted /data); then
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IMG=/data/magisk.img
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else
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IMG=/cache/magisk.img
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ui_print "- Data unavailable, use cache workaround"
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fi
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if [ -f $IMG ]; then
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ui_print "- $IMG detected!"
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else
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ui_print "- Creating $IMG"
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make_ext4fs -l 64M -a /magisk -S $INSTALLER/common/file_contexts_image $IMG
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fi
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mount_image $IMG /magisk
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if (! is_mounted /magisk); then
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ui_print "! Magisk image mount failed..."
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exit 1
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fi
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MAGISKLOOP=$LOOPDEVICE
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# Core folders and scripts
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mkdir -p $COREDIR/magiskhide $COREDIR/postfsdata.d $COREDIR/service.d 2>/dev/null
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cp -af $INSTALLER/common/magiskhide/. $BINDIR/magiskhide $COREDIR/magiskhide
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chmod -R 755 $COREDIR/magiskhide $COREDIR/postfsdata.d $COREDIR/service.d
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chown -R 0.0 $COREDIR/magiskhide $COREDIR/postfsdata.d $COREDIR/service.d
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##########################################################################################
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# Boot image patch
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##########################################################################################
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ui_print "- Found Boot Image: $BOOTIMAGE"
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rm -rf $TMPDIR/boottmp 2>/dev/null
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mkdir -p $TMPDIR/boottmp
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ui_print "- Unpacking boot image"
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unpack_boot $BOOTIMAGE
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if [ $? -ne 0 ]; then
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ui_print "! Unable to unpack boot image"
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exit 1;
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fi
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ORIGBOOT=
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SUPERSU=false
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[ -f sbin/launch_daemonsu.sh ] && SUPERSU=true
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if ($SUPERSU); then
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##############################
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# SuperSU installation process
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##############################
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ui_print "- SuperSU patched boot detected!"
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ui_print "- Adding auto patch script for SuperSU"
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cp -af $INSTALLER/common/custom_ramdisk_patch.sh /data/custom_ramdisk_patch.sh
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if (is_mounted /data); then
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SUIMG=/data/su.img
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else
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SUIMG=/cache/su.img
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fi
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mount_image $SUIMG /su
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if (! is_mounted /su); then
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ui_print "! SU image mount failed..."
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ui_print "! Please immediately flash SuperSU now"
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ui_print "! Installation will complete after flashing SuperSU"
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exit 1
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fi
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SUPERSULOOP=$LOOPDEVICE
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gunzip -c < $UNPACKDIR/ramdisk.gz > $UNPACKDIR/ramdisk
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ui_print "- Using sukernel to restore ramdisk"
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# Restore ramdisk
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LD_LIBRARY_PATH=$SYSTEMLIB /su/bin/sukernel --cpio-restore $UNPACKDIR/ramdisk $UNPACKDIR/ramdisk.orig
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if [ $? -ne 0 ]; then
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LD_LIBRARY_PATH=$SYSTEMLIB /su/bin/sukernel --restore $UNPACKDIR/ramdisk $TMPDIR/boottmp/stock_boot.img
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if [ $? -ne 0 ]; then
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ui_print "! Unable to restore ramdisk"
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exit 1
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fi
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LD_LIBRARY_PATH=$SYSTEMLIB /su/bin/sukernel --bootimg-extract-ramdisk $TMPDIR/boottmp/stock_boot.img $UNPACKDIR/ramdisk.orig.gz
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LD_LIBRARY_PATH=$SYSTEMLIB /su/bin/sukernel --ungzip $UNPACKDIR/ramdisk.orig.gz $UNPACKDIR/ramdisk.orig
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fi
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if [ ! -f $UNPACKDIR/ramdisk.orig ]; then
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ui_print "! Unable to restore ramdisk"
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exit 1
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fi
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rm -f $TMPDIR/boottmp/stock_boot.img $UNPACKDIR/ramdisk.orig.gz $UNPACKDIR/ramdisk.gz 2>/dev/null
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ui_print "- Patching ramdisk with sukernel"
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sh /data/custom_ramdisk_patch.sh $UNPACKDIR/ramdisk
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LD_LIBRARY_PATH=$SYSTEMLIB /su/bin/sukernel --cpio-backup $UNPACKDIR/ramdisk.orig $UNPACKDIR/ramdisk $UNPACKDIR/ramdisk
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gzip -9 < $UNPACKDIR/ramdisk > $UNPACKDIR/ramdisk.gz
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rm -f $UNPACKDIR/ramdisk $UNPACKDIR/ramdisk.orig
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else
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##############################
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# Magisk installation process
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##############################
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# Ramdisk restore
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if [ -d ".backup" ]; then
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# This implies Magisk is already installed, and ramdisk backup exists
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ui_print "- Restoring ramdisk with ramdisk backup"
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cp -af .backup/. .
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rm -rf magisk init.magisk.rc sbin/magic_mask.sh 2>/dev/null
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ORIGBOOT=false
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elif [ -d "magisk" ]; then
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mv -f /data/stock_boot_*.gz /data/stock_boot.img.gz 2>/dev/null
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gzip -d /data/stock_boot.img.gz 2>/dev/null
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rm -f /data/stock_boot.img.gz 2>/dev/null
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[ -f /data/stock_boot.img ] && ORIGBOOT=/data/stock_boot.img
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# If Magisk is installed and no SuperSU and no ramdisk backups,
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# we restore previous stock boot image backups
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if [ ! -z $ORIGBOOT ]; then
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ui_print "- Restoring boot image with backup"
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unpack_boot $ORIGBOOT
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fi
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# Removing possible modifications
|
|
rm -rf magisk init.magisk.rc sbin/magic_mask.sh sbin/su init.xposed.rc sbin/mount_xposed.sh 2>/dev/null
|
|
ORIGBOOT=false
|
|
fi
|
|
|
|
# Backups
|
|
ui_print "- Creating ramdisk backup"
|
|
mkdir .backup 2>/dev/null
|
|
cp -af *fstab* verity_key sepolicy .backup 2>/dev/null
|
|
if [ -z $ORIGBOOT ]; then
|
|
ui_print "- Creating boot image backup"
|
|
if (is_mounted /data); then
|
|
dd if=$BOOTIMAGE of=/data/stock_boot.img
|
|
else
|
|
dd if=$BOOTIMAGE of=/cache/stock_boot.img
|
|
fi
|
|
fi
|
|
|
|
# MagiskSU
|
|
ui_print "- Installing MagiskSU"
|
|
rm -rf $COREDIR/su 2>/dev/null
|
|
mkdir -p $COREDIR/su
|
|
cp -af $BINDIR/su $INSTALLER/common/magisksu.sh $COREDIR/su
|
|
chmod -R 755 $COREDIR/su
|
|
chown -R 0.0 $COREDIR/su
|
|
|
|
# Patch ramdisk
|
|
ui_print "- Patching ramdisk"
|
|
|
|
# Add magisk entrypoints
|
|
for RC in init*.rc; do
|
|
if file_contain "import /init.environ.rc" $RC && ! file_contain "import /init.magisk.rc" $RC; then
|
|
[ ! -f .backup/$RC ] && cp -af $RC .backup
|
|
sed -i "/import \/init\.environ\.rc/iimport /init.magisk.rc" $RC
|
|
fi
|
|
if file_contain "trigger load_persist_props_action" $RC && ! file_contain "trigger load_magisk_props_action" $RC; then
|
|
[ ! -f .backup/$RC ] && cp -af $RC .backup
|
|
sed -i "/trigger load_persist_props_action/a\ \ \ \ trigger load_magisk_props_action" $RC
|
|
fi
|
|
if file_contain "selinux.reload_policy"; then
|
|
[ ! -f .backup/$RC ] && cp -af $RC .backup
|
|
sed -i "/selinux.reload_policy/d" $RC
|
|
fi
|
|
done
|
|
|
|
for FSTAB in *fstab*; do
|
|
[ -L $FSTAB ] && continue
|
|
if (! $KEEPVERITY); then
|
|
sed -i "s/,support_scfs//g" $FSTAB
|
|
sed -i 's;,\{0,1\}verify\(=[^,]*\)\{0,1\};;g' $FSTAB
|
|
fi
|
|
if (! $KEEPFORCEENCRYPT); then
|
|
sed -i "s/forceencrypt/encryptable/g" $FSTAB
|
|
sed -i "s/forcefdeorfbe/encryptable/g" $FSTAB
|
|
fi
|
|
done
|
|
if (! $KEEPVERITY); then
|
|
rm verity_key 2>/dev/null
|
|
fi
|
|
|
|
# sepolicy patches
|
|
LD_LIBRARY_PATH=$SYSTEMLIB $BINDIR/sepolicy-inject --magisk -P sepolicy
|
|
|
|
# Add new items
|
|
mkdir -p magisk 2>/dev/null
|
|
cp -af $INSTALLER/common/init.magisk.rc init.magisk.rc
|
|
cp -af $INSTALLER/common/magic_mask.sh sbin/magic_mask.sh
|
|
|
|
chmod 0755 magisk
|
|
chmod 0750 init.magisk.rc sbin/magic_mask.sh
|
|
chown 0.0 magisk init.magisk.rc sbin/magic_mask.sh
|
|
fi
|
|
|
|
ui_print "- Repacking boot image"
|
|
repack_boot
|
|
|
|
BOOTSIZE=`blockdev --getsize64 $BOOTIMAGE 2>/dev/null`
|
|
NEWSIZE=`ls -l $NEWBOOT | awk '{print $5}'`
|
|
if [ "$NEWSIZE" -gt "$BOOTSIZE" ]; then
|
|
ui_print "! Boot partition space insufficient"
|
|
ui_print "! Remove ramdisk backups and try again"
|
|
rm -rf $RAMDISK/.backup $NEWBOOT 2>/dev/null
|
|
repack_boot
|
|
NEWSIZE=`ls -l $NEWBOOT | awk '{print $5}'`
|
|
if [ "$NEWSIZE" -gt "$BOOTSIZE" ]; then
|
|
ui_print "! Boot partition size still too small..."
|
|
ui_print "! Unable to install Magisk"
|
|
exit 1
|
|
fi
|
|
fi
|
|
|
|
chmod 644 $NEWBOOT
|
|
|
|
ui_print "- Flashing new boot image"
|
|
[ ! -L $BOOTIMAGE ] && dd if=/dev/zero of=$BOOTIMAGE bs=4096 2>/dev/null
|
|
dd if=$NEWBOOT of=$BOOTIMAGE bs=4096
|
|
|
|
cd /
|
|
|
|
if (! $BOOTMODE); then
|
|
ui_print "- Unmounting partitions"
|
|
umount /magisk
|
|
losetup -d $MAGISKLOOP
|
|
rmdir /magisk
|
|
if ($SUPERSU); then
|
|
umount /su
|
|
losetup -d $SUPERSULOOP
|
|
rmdir /su
|
|
fi
|
|
umount /system
|
|
fi
|
|
|
|
ui_print "- Done"
|
|
exit 0
|