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https://github.com/topjohnwu/Magisk.git
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Update scripts
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topjohnwu
@@ -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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