mirror of
https://github.com/topjohnwu/Magisk.git
synced 2025-12-03 05:21:52 +00:00
Add build scripts
Building through the build script will compile all binaries, and generate a properly signed zip Should work on linux and macOS environments
This commit is contained in:
topjohnwu
420
scripts/magic_mask.sh
Normal file
420
scripts/magic_mask.sh
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@@ -0,0 +1,420 @@
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#!/system/bin/sh
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LOGFILE=/cache/magisk.log
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IMG=/data/magisk.img
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MOUNTPOINT=/magisk
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COREDIR=$MOUNTPOINT/.core
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TMPDIR=/dev/magisk
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DUMMDIR=$TMPDIR/dummy
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MIRRDIR=$TMPDIR/mirror
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MOUNTINFO=$TMPDIR/mnt
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# Use the included busybox for maximum compatibility and reliable results
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# e.g. we rely on the option "-c" for cp (reserve contexts), and -exec for find
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TOOLPATH=/data/busybox
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# Legacy support for old phh, we don't change PATH now
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export OLDPATH=$PATH
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log_print() {
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echo $1
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echo $1 >> $LOGFILE
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log -p i -t Magisk "$1"
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}
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mktouch() {
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mkdir -p ${1%/*} 2>/dev/null
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if [ -z "$2" ]; then
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touch $1 2>/dev/null
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else
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echo $2 > $1 2>/dev/null
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fi
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}
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unblock() {
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touch /dev/.magisk.unblock
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exit
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}
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run_scripts() {
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BASE=$MOUNTPOINT
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for MOD in $BASE/* ; do
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if [ ! -f "$MOD/disable" ]; then
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if [ -f "$MOD/$1.sh" ]; then
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chmod 755 $MOD/$1.sh
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chcon 'u:object_r:system_file:s0' $MOD/$1.sh
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log_print "$1: $MOD/$1.sh"
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sh $MOD/$1.sh
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fi
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fi
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done
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}
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loopsetup() {
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LOOPDEVICE=
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for DEV in $(ls /dev/block/loop*); do
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if [ `$TOOLPATH/losetup $DEV $1 >/dev/null 2>&1; echo $?` -eq 0 ]; then
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LOOPDEVICE=$DEV
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break
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fi
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done
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}
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target_size_check() {
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e2fsck -p -f $1
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curBlocks=`e2fsck -n $1 2>/dev/null | cut -d, -f3 | cut -d\ -f2`;
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curUsedM=$((`echo "$curBlocks" | cut -d/ -f1` * 4 / 1024));
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curSizeM=$((`echo "$curBlocks" | cut -d/ -f2` * 4 / 1024));
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curFreeM=$((curSizeM - curUsedM));
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}
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travel() {
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cd $1/$2
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if [ -f ".replace" ]; then
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rm -rf $MOUNTINFO/$2
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mktouch $MOUNTINFO/$2 $1
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else
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for ITEM in * ; do
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if [ ! -e "/$2/$ITEM" ]; then
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# New item found
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if [ $2 = "system" ]; then
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# We cannot add new items to /system root, delete it
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rm -rf $ITEM
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else
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if [ -d "$MOUNTINFO/dummy/$2" ]; then
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# We are in a higher level, delete the lower levels
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rm -rf $MOUNTINFO/dummy/$2
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fi
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# Mount the dummy parent
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mktouch $MOUNTINFO/dummy/$2
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mkdir -p $DUMMDIR/$2 2>/dev/null
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if [ -d "$ITEM" ]; then
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# Create new dummy directory
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mkdir -p $DUMMDIR/$2/$ITEM
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elif [ -L "$ITEM" ]; then
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# Symlinks are small, copy them
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$TOOLPATH/cp -afc $ITEM $DUMMDIR/$2/$ITEM
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else
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# Create new dummy file
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mktouch $DUMMDIR/$2/$ITEM
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fi
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# Clone the original /system structure (depth 1)
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if [ -e "/$2" ]; then
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for DUMMY in /$2/* ; do
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if [ -d "$DUMMY" ]; then
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# Create dummy directory
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mkdir -p $DUMMDIR$DUMMY
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elif [ -L "$DUMMY" ]; then
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# Symlinks are small, copy them
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$TOOLPATH/cp -afc $DUMMY $DUMMDIR$DUMMY
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else
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# Create dummy file
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mktouch $DUMMDIR$DUMMY
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fi
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done
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fi
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fi
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fi
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if [ -d "$ITEM" ]; then
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# It's an directory, travel deeper
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(travel $1 $2/$ITEM)
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elif [ ! -L "$ITEM" ]; then
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# Mount this file
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mktouch $MOUNTINFO/$2/$ITEM $1
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fi
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done
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fi
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}
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bind_mount() {
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if [ -e "$1" -a -e "$2" ]; then
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mount -o bind $1 $2
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if [ "$?" -eq "0" ]; then
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log_print "Mount: $1"
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else
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log_print "Mount Fail: $1"
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fi
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fi
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}
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merge_image() {
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if [ -f "$1" ]; then
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log_print "$1 found"
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if [ -f "$IMG" ]; then
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log_print "$IMG found, attempt to merge"
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# Handle large images
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target_size_check $1
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MERGEUSED=$curUsedM
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target_size_check $IMG
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if [ "$MERGEUSED" -gt "$curFreeM" ]; then
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NEWDATASIZE=$((((MERGEUSED + curUsedM) / 32 + 2) * 32))
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log_print "Expanding $IMG to ${NEWDATASIZE}M..."
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resize2fs $IMG ${NEWDATASIZE}M
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fi
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# Start merging
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mkdir /cache/data_img
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mkdir /cache/merge_img
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# setup loop devices
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loopsetup $IMG
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LOOPDATA=$LOOPDEVICE
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log_print "$LOOPDATA $IMG"
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loopsetup $1
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LOOPMERGE=$LOOPDEVICE
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log_print "$LOOPMERGE $1"
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if [ ! -z "$LOOPDATA" ]; then
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if [ ! -z "$LOOPMERGE" ]; then
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# if loop devices have been setup, mount images
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OK=true
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if [ `mount -t ext4 -o rw,noatime $LOOPDATA /cache/data_img >/dev/null 2>&1; echo $?` -ne 0 ]; then
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OK=false
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fi
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if [ `mount -t ext4 -o rw,noatime $LOOPMERGE /cache/merge_img >/dev/null 2>&1; echo $?` -ne 0 ]; then
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OK=false
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fi
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if ($OK); then
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# Merge (will reserve selinux contexts)
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cd /cache/merge_img
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for MOD in *; do
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if [ "$MOD" != "lost+found" ]; then
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log_print "Merging: $MOD"
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rm -rf /cache/data_img/$MOD
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$TOOLPATH/cp -afc $MOD /cache/data_img/
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fi
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done
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$TOOLPATH/cp -afc .core/. /cache/data_img/.core 2>/dev/null
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log_print "Merge complete"
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fi
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umount /cache/data_img
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umount /cache/merge_img
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fi
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fi
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$TOOLPATH/losetup -d $LOOPDATA
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$TOOLPATH/losetup -d $LOOPMERGE
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rmdir /cache/data_img
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rmdir /cache/merge_img
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else
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log_print "Moving $1 to $IMG "
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mv $1 $IMG
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fi
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rm -f $1
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fi
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}
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case $1 in
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post-fs )
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mv $LOGFILE /cache/last_magisk.log
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touch $LOGFILE
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chmod 644 $LOGFILE
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log_print "Magisk post-fs mode running..."
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# No more cache mods!
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# Only for multirom!
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unblock
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;;
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post-fs-data )
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if [ `mount | grep " /data " >/dev/null 2>&1; echo $?` -ne 0 ]; then
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# /data not mounted yet, we will be called again later
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unblock
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fi
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if [ `mount | grep " /data " | grep "tmpfs" >/dev/null 2>&1; echo $?` -eq 0 ]; then
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# /data not mounted yet, we will be called again later
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unblock
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fi
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# Don't run twice
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if [ "$(getprop magisk.restart_pfsd)" != "1" ]; then
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log_print "Magisk post-fs-data mode running..."
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# Live patch sepolicy
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/data/magisk/sepolicy-inject --live -s su
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# Cache support
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if [ -d "/cache/data_bin" ]; then
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rm -rf /data/busybox /data/magisk
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mkdir -p /data/busybox
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mv /cache/data_bin /data/magisk
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chmod -R 755 /data/busybox /data/magisk
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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
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fi
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mv /cache/stock_boot.img /data 2>/dev/null
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chcon -R 'u:object_r:system_file:s0' /data/busybox /data/magisk
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# Image merging
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chmod 644 $IMG /cache/magisk.img /data/magisk_merge.img 2>/dev/null
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merge_image /cache/magisk.img
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merge_image /data/magisk_merge.img
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# Mount magisk.img
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[ ! -d "$MOUNTPOINT" ] && mkdir -p $MOUNTPOINT
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if [ `cat /proc/mounts | grep $MOUNTPOINT >/dev/null 2>&1; echo $?` -ne 0 ]; then
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loopsetup $IMG
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if [ ! -z "$LOOPDEVICE" ]; then
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mount -t ext4 -o rw,noatime $LOOPDEVICE $MOUNTPOINT
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fi
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fi
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if [ `cat /proc/mounts | grep $MOUNTPOINT >/dev/null 2>&1; echo $?` -ne 0 ]; then
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log_print "magisk.img mount failed, nothing to do :("
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unblock
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fi
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# Remove empty directories and remove legacy paths and previous symlink
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rm -rf $COREDIR/bin $COREDIR/dummy $COREDIR/mirror
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$TOOLPATH/find $MOUNTPOINT -type d -depth ! -path "*core*" -exec rmdir {} \; 2>/dev/null
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# Remove modules
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for MOD in $MOUNTPOINT/* ; do
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if [ -f "$MOD/remove" ]; then
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log_print "Remove module: $MOD"
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rm -rf $MOD
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fi
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done
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# Unmount, shrink, remount
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if [ `umount $MOUNTPOINT >/dev/null 2>&1; echo $?` -eq 0 ]; then
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$TOOLPATH/losetup -d $LOOPDEVICE
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target_size_check $IMG
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NEWDATASIZE=$(((curUsedM / 32 + 2) * 32))
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if [ "$curSizeM" -gt "$NEWDATASIZE" ]; then
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log_print "Shrinking $IMG to ${NEWDATASIZE}M..."
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resize2fs $IMG ${NEWDATASIZE}M
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fi
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loopsetup $IMG
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if [ ! -z "$LOOPDEVICE" ]; then
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mount -t ext4 -o rw,noatime $LOOPDEVICE $MOUNTPOINT
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fi
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if [ `cat /proc/mounts | grep $MOUNTPOINT >/dev/null 2>&1; echo $?` -ne 0 ]; then
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log_print "magisk.img mount failed, nothing to do :("
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unblock
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fi
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fi
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log_print "Preparing modules"
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mkdir -p $DUMMDIR
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mkdir -p $MIRRDIR/system
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# Travel through all mods
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for MOD in $MOUNTPOINT/* ; do
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if [ -f "$MOD/auto_mount" -a -d "$MOD/system" -a ! -f "$MOD/disable" ]; then
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(travel $MOD system)
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fi
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done
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# Proper permissions for generated items
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$TOOLPATH/find $DUMMDIR -type d -exec chmod 755 {} \;
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$TOOLPATH/find $DUMMDIR -type f -exec chmod 644 {} \;
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$TOOLPATH/find $DUMMDIR -exec chcon 'u:object_r:system_file:s0' {} \;
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# linker(64), t*box, and app_process* are required if we need to dummy mount bin folder
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if [ -f "$MOUNTINFO/dummy/system/bin" ]; then
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rm -f $DUMMDIR/system/bin/linker* $DUMMDIR/system/bin/t*box $DUMMDIR/system/bin/app_process*
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cd /system/bin
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$TOOLPATH/cp -afc linker* t*box app_process* $DUMMDIR/system/bin/
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fi
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# Remove crap folder
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rm -rf $MOUNTPOINT/lost+found
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# Start doing tasks
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# Stage 1
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log_print "Bind mount dummy system"
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$TOOLPATH/find $MOUNTINFO/dummy -type f 2>/dev/null | while read ITEM ; do
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TARGET=${ITEM#$MOUNTINFO/dummy}
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ORIG=$DUMMDIR$TARGET
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bind_mount $ORIG $TARGET
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done
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# Stage 2
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log_print "Bind mount module items"
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$TOOLPATH/find $MOUNTINFO/system -type f 2>/dev/null | while read ITEM ; do
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TARGET=${ITEM#$MOUNTINFO}
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ORIG=`cat $ITEM`$TARGET
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bind_mount $ORIG $TARGET
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rm -f $DUMMDIR${TARGET%/*}/.dummy 2>/dev/null
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done
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# Run scripts
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run_scripts post-fs-data
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# Bind hosts for Adblock apps
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[ ! -f "$COREDIR/hosts" ] && $TOOLPATH/cp -afc /system/etc/hosts $COREDIR/hosts
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log_print "Enabling systemless hosts file support"
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bind_mount $COREDIR/hosts /system/etc/hosts
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# Stage 3
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log_print "Bind mount system mirror"
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bind_mount /system $MIRRDIR/system
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# Stage 4
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log_print "Bind mount mirror items"
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# Find all empty directores and dummy files, they should be mounted by original files in /system
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TOOLPATH=/data/busybox $TOOLPATH/find $DUMMDIR -type d \
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-exec sh -c '[ -z "$($TOOLPATH/ls -A $1)" ] && echo $1' -- {} \; \
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-o \( -type f -size 0 -print \) | \
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while read ITEM ; do
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ORIG=${ITEM/dummy/mirror}
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TARGET=${ITEM#$DUMMDIR}
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bind_mount $ORIG $TARGET
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done
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# Restart post-fs-data, since data might be changed (multirom)
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setprop magisk.restart_pfsd 1
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fi
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unblock
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;;
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service )
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# Version info
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MAGISK_VERSION_STUB
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log_print "Magisk late_start service mode running..."
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run_scripts service
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[ -f "$COREDIR/magiskhide/enable" ] && setprop magisk.hide 1
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;;
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hide )
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# Enable magiskhide
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[ ! -f "$COREDIR/magiskhide/hidelist" ] && mktouch $COREDIR/magiskhide/hidelist
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# Add preset for Safety Net
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if [ $(grep -c "com.google.android.gms.unstable" $COREDIR/magiskhide/hidelist) -eq "0" ]; then
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mv $COREDIR/magiskhide/hidelist $COREDIR/magiskhide/hidelist.tmp
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echo "com.google.android.gms.unstable" > $COREDIR/magiskhide/hidelist
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cat $COREDIR/magiskhide/hidelist.tmp >> $COREDIR/magiskhide/hidelist
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rm -f $COREDIR/magiskhide/hidelist.tmp
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fi
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chmod 755 $COREDIR/magiskhide $COREDIR/magiskhide/*
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log_print "Starting Magisk Hide"
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exec /data/magisk/magiskhide $COREDIR/magiskhide/hidelist
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;;
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esac
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Block a user