173 lines
4.3 KiB
Bash
173 lines
4.3 KiB
Bash
#MAGISK
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############################################
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#
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# Magisk Uninstaller
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# by topjohnwu
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#
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############################################
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##############
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# Preparation
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##############
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# This path should work in any cases
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TMPDIR=/dev/tmp
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INSTALLER=$TMPDIR/install
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CHROMEDIR=$INSTALLER/chromeos
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# Default permissions
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umask 022
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OUTFD=$2
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ZIP=$3
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if [ ! -f $INSTALLER/util_functions.sh ]; then
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echo "! Unable to extract zip file!"
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exit 1
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fi
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# Load utility functions
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. $INSTALLER/util_functions.sh
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setup_flashable
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print_title "Magisk Uninstaller"
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is_mounted /data || mount /data || abort "! Unable to mount /data, please uninstall with Magisk Manager"
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if ! $BOOTMODE; then
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# Mounting stuffs in recovery (best effort)
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mount_name metadata /metadata
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mount_name "cache cac" /cache
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mount_name persist /persist
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fi
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mount_partitions
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api_level_arch_detect
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ui_print "- Device platform: $ARCH"
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MAGISKBIN=$INSTALLER/$ARCH32
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mv $CHROMEDIR $MAGISKBIN
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chmod -R 755 $MAGISKBIN
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check_data
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$DATA_DE || abort "! Cannot access /data, please uninstall with Magisk Manager"
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$BOOTMODE || recovery_actions
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run_migrations
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############
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# Uninstall
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############
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get_flags
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find_boot_image
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[ -e $BOOTIMAGE ] || abort "! Unable to detect boot image"
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ui_print "- Found target image: $BOOTIMAGE"
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[ -z $DTBOIMAGE ] || ui_print "- Found dtbo image: $DTBOIMAGE"
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cd $MAGISKBIN
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CHROMEOS=false
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ui_print "- Unpacking boot image"
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# Dump image for MTD/NAND character device boot partitions
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if [ -c $BOOTIMAGE ]; then
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nanddump -f boot.img $BOOTIMAGE
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BOOTNAND=$BOOTIMAGE
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BOOTIMAGE=boot.img
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fi
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./magiskboot unpack "$BOOTIMAGE"
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case $? in
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1 )
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abort "! Unsupported/Unknown image format"
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;;
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2 )
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ui_print "- ChromeOS boot image detected"
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CHROMEOS=true
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;;
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esac
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# Restore the original boot partition path
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[ "$BOOTNAND" ] && BOOTIMAGE=$BOOTNAND
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# Detect boot image state
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ui_print "- Checking ramdisk status"
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if [ -e ramdisk.cpio ]; then
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./magiskboot cpio ramdisk.cpio test
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STATUS=$?
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else
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# Stock A only system-as-root
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STATUS=0
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fi
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case $((STATUS & 3)) in
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0 ) # Stock boot
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ui_print "- Stock boot image detected"
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;;
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1 ) # Magisk patched
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ui_print "- Magisk patched image detected"
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# Find SHA1 of stock boot image
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SHA1=`./magiskboot cpio ramdisk.cpio sha1 2>/dev/null`
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BACKUPDIR=/data/magisk_backup_$SHA1
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if [ -d $BACKUPDIR ]; then
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ui_print "- Restoring stock boot image"
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flash_image $BACKUPDIR/boot.img.gz $BOOTIMAGE
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for name in dtb dtbo dtbs; do
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[ -f $BACKUPDIR/${name}.img.gz ] || continue
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IMAGE=`find_block $name$SLOT`
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[ -z $IMAGE ] && continue
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ui_print "- Restoring stock $name image"
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flash_image $BACKUPDIR/${name}.img.gz $IMAGE
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done
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else
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ui_print "! Boot image backup unavailable"
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ui_print "- Restoring ramdisk with internal backup"
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./magiskboot cpio ramdisk.cpio restore
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if ! ./magiskboot cpio ramdisk.cpio "exists init.rc"; then
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# A only system-as-root
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rm -f ramdisk.cpio
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fi
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./magiskboot repack $BOOTIMAGE
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# Sign chromeos boot
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$CHROMEOS && sign_chromeos
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ui_print "- Flashing restored boot image"
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flash_image new-boot.img $BOOTIMAGE || abort "! Insufficient partition size"
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fi
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;;
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2 ) # Unsupported
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ui_print "! Boot image patched by unsupported programs"
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abort "! Cannot uninstall"
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;;
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esac
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ui_print "- Removing Magisk files"
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rm -rf \
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/cache/*magisk* /cache/unblock /data/*magisk* /data/cache/*magisk* /data/property/*magisk* \
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/data/Magisk.apk /data/busybox /data/custom_ramdisk_patch.sh /data/adb/*magisk* \
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/data/adb/post-fs-data.d /data/adb/service.d /data/adb/modules* \
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/data/unencrypted/magisk /metadata/magisk /persist/magisk /mnt/vendor/persist/magisk
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if [ -f /system/addon.d/99-magisk.sh ]; then
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blockdev --setrw /dev/block/mapper/system$SLOT 2>/dev/null
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mount -o rw,remount /system || mount -o rw,remount /
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rm -f /system/addon.d/99-magisk.sh
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fi
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cd /
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if $BOOTMODE; then
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ui_print "********************************************"
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ui_print " Magisk Manager will uninstall itself, and"
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ui_print " the device will reboot after a few seconds"
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ui_print "********************************************"
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(sleep 8; /system/bin/reboot)&
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else
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rm -rf /data/data/*magisk* /data/user*/*/*magisk* /data/app/*magisk* /data/app/*/*magisk*
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recovery_cleanup
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ui_print "- Done"
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fi
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rm -rf $TMPDIR
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exit 0
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