forked from MarcoBuster/Magisk
Update uninstallation
This commit is contained in:
topjohnwu
parent
493642eb38
commit
264c6a50b6
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@ -8,120 +8,103 @@
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# The Magisk main binary will pick up the script, and uninstall itself, following a reboot
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# This script can also be used in flashable zip with the uninstaller_loader.sh
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#
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# This script will try to do restoration in the following order:
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# 1. Find and restore the original stock boot image dump (OTA proof)
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# 2. Restore ramdisk from the internal backup (ramdisk fully restored, not OTA friendly)
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# 3. Remove added files in ramdisk, modified files are remained intact. By doing so, Magisk
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# will not be started at boot, but not removed clean enough
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#
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# Finally, this uninstaller will remove all Magisk related files
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# (The list is LARGE, most likely due to bad decision in early versions
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# the latest versions has much less bloat to cleanup)
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# This script will try to do restoration with the following:
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# 1-1. Find and restore the original stock boot image dump (OTA proof)
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# 1-2. If 1-1 fails, restore ramdisk from the internal backup
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# (ramdisk fully restored, not OTA friendly)
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# 1-3. If 1-2 fails, it will remove added files in ramdisk, however modified files
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# are remained modified, because we have no backups. By doing so, Magisk will
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# not be started at boot, but this isn't actually 100% cleaned up
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# 2. Remove all Magisk related files
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# (The list is LARGE, most likely due to bad decision in early versions
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# the latest versions has much less bloat to cleanup)
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#
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##########################################################################################
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[ -z $BOOTMODE ] && BOOTMODE=false
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MAGISKBIN=/data/magisk
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CHROMEDIR=$MAGISKBIN/chromeos
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[ -d /system/lib64 ] && SYSTEMLIB=/system/lib64 || SYSTEMLIB=/system/lib
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# Default permissions
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umask 022
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# Call ui_print_wrap if exists, or else simply use echo
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# Useful when wrapped in flashable zip
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ui_print_wrap() {
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type ui_print >/dev/null 2>&1 && 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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# Call abort if exists, or else show error message and exit
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# Essential when wrapped in flashable zip
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abort_wrap() {
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type abort >/dev/null 2>&1
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if [ $? -ne 0 ]; then
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ui_print_wrap "$1"
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exit 1
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else
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abort "$1"
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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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if [ ! -d $MAGISKBIN -o ! -f $MAGISKBIN/magiskboot -o ! -f $MAGISKBIN/util_functions.sh ]; then
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ui_print_wrap "! Cannot find $MAGISKBIN"
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exit 1
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fi
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[ -z $BOOTMODE ] && BOOTMODE=false
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MAGISKBIN=/data/magisk
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CHROMEDIR=$MAGISKBIN/chromeos
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# Default permissions
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umask 022
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# Load utility functions
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. $MAGISKBIN/util_functions.sh
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# Find the boot image
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find_boot_image
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if [ -z "$BOOTIMAGE" ]; then
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ui_print_wrap "! Unable to detect boot image"
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exit 1
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fi
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[ -z $BOOTIMAGE ] && abort "! Unable to detect boot image"
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ui_print_wrap "- Found Boot Image: $BOOTIMAGE"
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cd $MAGISKBIN
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ui_print_wrap "- Unpacking boot image"
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LD_LIBRARY_PATH=$SYSTEMLIB ./magiskboot --unpack $BOOTIMAGE
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if [ $? -ne 0 ]; then
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ui_print_wrap "! Unable to unpack boot image"
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exit 1
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fi
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./magiskboot --unpack "$BOOTIMAGE"
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[ $? -ne 0 ] && abort_wrap "! Unable to unpack boot image"
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# Update our previous backups to new format if exists
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# Update our previous backup to new format if exists
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if [ -f /data/stock_boot.img ]; then
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SHA1=`LD_LIBRARY_PATH=$SYSTEMLIB ./magiskboot --sha1 /data/stock_boot.img | tail -n 1`
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SHA1=`./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 ./magiskboot --compress $STOCKDUMP
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./magiskboot --compress $STOCKDUMP
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fi
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# Detect boot image state
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LD_LIBRARY_PATH=$SYSTEMLIB ./magiskboot --cpio-test ramdisk.cpio
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./magiskboot --cpio-test ramdisk.cpio
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case $? in
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0 )
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0 ) # Stock boot
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ui_print_wrap "- Stock boot image detected!"
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ui_print_wrap "! Magisk is not installed!"
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exit
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;;
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1 )
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1 ) # Magisk patched
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ui_print_wrap "- Magisk patched image detected!"
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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 ./magiskboot --cpio-extract ramdisk.cpio init.magisk.rc init.magisk.rc.old
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./magiskboot --cpio-extract ramdisk.cpio init.magisk.rc init.magisk.rc.old
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SHA1=`grep_prop "# STOCKSHA1" init.magisk.rc.old`
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[ ! -z $SHA1 ] && STOCKDUMP=/data/stock_boot_${SHA1}.img
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rm -f init.magisk.rc.old
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fi
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[ ! -z $SHA1 ] && STOCKDUMP=/data/stock_boot_${SHA1}.img
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if [ -f ${STOCKDUMP}.gz ]; then
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ui_print_wrap "- Boot image backup found!"
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LD_LIBRARY_PATH=$SYSTEMLIB ./magiskboot --decompress ${STOCKDUMP}.gz stock_boot.img
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./magiskboot --decompress ${STOCKDUMP}.gz stock_boot.img
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else
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ui_print_wrap "! Boot image backup unavailable"
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ui_print_wrap "- Restoring ramdisk with backup"
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LD_LIBRARY_PATH=$SYSTEMLIB ./magiskboot --cpio-restore ramdisk.cpio
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LD_LIBRARY_PATH=$SYSTEMLIB ./magiskboot --repack $BOOTIMAGE stock_boot.img
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./magiskboot --cpio-restore ramdisk.cpio
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./magiskboot --repack $BOOTIMAGE stock_boot.img
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fi
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;;
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2 ) # Other patched
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ui_print_wrap "! Boot image patched by other programs!"
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ui_print_wrap "! Cannot uninstall with this uninstaller"
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exit 1
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ui_print_wrap "! Boot image patched by other programs!"
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abort_wrap "! Cannot uninstall with this uninstaller"
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;;
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esac
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@ -138,10 +121,10 @@ if [ -f chromeos ]; then
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fi
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ui_print_wrap "- Flashing stock/reverted image"
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if [ -L $BOOTIMAGE ]; then
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dd if=stock_boot.img of=$BOOTIMAGE bs=4096
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if [ -L "$BOOTIMAGE" ]; then
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dd if=stock_boot.img of="$BOOTIMAGE" bs=4096
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else
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cat stock_boot.img /dev/zero | dd of=$BOOTIMAGE bs=4096
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cat stock_boot.img /dev/zero | dd of="$BOOTIMAGE" bs=4096 >/dev/null 2>&1
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fi
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rm -f stock_boot.img
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192
app/src/main/assets/util_functions.sh
Normal file
192
app/src/main/assets/util_functions.sh
Normal file
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@ -0,0 +1,192 @@
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##########################################################################################
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#
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# Magisk General Utility Functions
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# by topjohnwu
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#
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# Used in flash_script.sh, addon.d.sh, magisk module installers, and uninstaller
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#
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##########################################################################################
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get_outfd() {
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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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}
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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 BLOCK in boot_a BOOT_A kern-a KERN-A android_boot ANDROID_BOOT kernel KERNEL boot BOOT lnx LNX; do
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BOOTIMAGE=`ls /dev/block/by-name/$BLOCK || ls /dev/block/platform/*/by-name/$BLOCK || ls /dev/block/platform/*/*/by-name/$BLOCK` 2>/dev/null
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[ ! -z $BOOTIMAGE ] && break
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done
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fi
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# Recovery fallback
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if [ -z "$BOOTIMAGE" ]; then
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for FSTAB in /etc/*fstab*; do
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BOOTIMAGE=`grep -E '\b/boot\b' $FSTAB | grep -v "#" | grep -oE '/dev/[a-zA-Z0-9_./-]*'`
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[ ! -z $BOOTIMAGE ] && break
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done
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fi
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[ -L "$BOOTIMAGE" ] && BOOTIMAGE=`readlink $BOOTIMAGE`
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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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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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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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api_level_arch_detect() {
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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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}
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recovery_actions() {
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# TWRP bug fix
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mount -o bind /dev/urandom /dev/random
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# Temporarily block out all custom recovery binaries/libs
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mv /sbin /sbin_tmp
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# Add all possible library paths
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OLD_LD_PATH=$LD_LIBRARY_PATH
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$IS64BIT && export LD_LIBRARY_PATH=/system/lib64:/system/vendor/lib64 || export LD_LIBRARY_PATH=/system/lib:/system/vendor/lib
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}
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recovery_cleanup() {
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mv /sbin_tmp /sbin
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# Clear LD_LIBRARY_PATH
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export LD_LIBRARY_PATH=$OLD_LD_PATH
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ui_print "- Unmounting partitions"
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umount -l /system
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umount -l /vendor 2>/dev/null
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umount -l /dev/random
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}
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abort() {
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ui_print "$1"
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mv /sbin_tmp /sbin 2>/dev/null
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exit 1
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}
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set_perm() {
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chown $2:$3 $1 || exit 1
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chmod $4 $1 || exit 1
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if [ ! -z $5 ]; then
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chcon $5 $1 2>/dev/null
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else
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chcon 'u:object_r:system_file:s0' $1 2>/dev/null
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fi
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}
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set_perm_recursive() {
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find $1 -type d 2>/dev/null | while read dir; do
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set_perm $dir $2 $3 $4 $6
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done
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find $1 -type f 2>/dev/null | while read file; do
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set_perm $file $2 $3 $5 $6
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done
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}
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mktouch() {
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mkdir -p ${1%/*}
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if [ -z "$2" ]; then
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touch $1
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else
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echo $2 > $1
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fi
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chmod 644 $1
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}
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request_size_check() {
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reqSizeM=`du -s $1 | cut -f1`
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reqSizeM=$((reqSizeM / 1024 + 1))
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}
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image_size_check() {
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SIZE="`$MAGISKBIN/magisk --imgsize $IMG`"
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curUsedM=`echo "$SIZE" | cut -d" " -f1`
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curSizeM=`echo "$SIZE" | cut -d" " -f2`
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curFreeM=$((curSizeM - curUsedM))
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}
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@ -176,6 +176,14 @@ public class MagiskFragment extends Fragment
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}
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in.close();
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out.close();
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in = magiskManager.getAssets().open(MagiskManager.UTIL_FUNCTIONS);
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File utils = new File(magiskManager.getCacheDir(), MagiskManager.UTIL_FUNCTIONS);
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out = new FileOutputStream(utils);
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while ((read = in.read(bytes)) != -1) {
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out.write(bytes, 0, read);
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}
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in.close();
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out.close();
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ProgressDialog progress = new ProgressDialog(getActivity());
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progress.setTitle(R.string.reboot);
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progress.show();
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@ -190,6 +198,7 @@ public class MagiskFragment extends Fragment
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progress.setMessage(getString(R.string.reboot_countdown, 0));
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Shell.su(true,
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"mv -f " + uninstaller + " /cache/" + MagiskManager.UNINSTALLER,
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"mv -f " + utils + " /data/magisk/" + MagiskManager.UTIL_FUNCTIONS,
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"reboot"
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);
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}
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@ -26,6 +26,7 @@ public class MagiskManager extends Application {
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public static final String TMP_FOLDER_PATH = "/dev/tmp";
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public static final String MAGISK_PATH = "/magisk";
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public static final String UNINSTALLER = "magisk_uninstaller.sh";
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public static final String UTIL_FUNCTIONS= "util_functions.sh";
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public static final String INTENT_SECTION = "section";
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public static final String BUSYBOX_VERSION = "1.26.2";
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public static final String MAGISKHIDE_PROP = "persist.magisk.hide";
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