forked from MarcoBuster/Magisk
430 lines
11 KiB
Bash
430 lines
11 KiB
Bash
#!/system/bin/sh
|
|
|
|
LOGFILE=/cache/magisk.log
|
|
HIDELOG=/cache/magiskhide.log
|
|
IMG=/data/magisk.img
|
|
|
|
export MOUNTPOINT=/magisk
|
|
|
|
COREDIR=$MOUNTPOINT/.core
|
|
|
|
DUMMDIR=$COREDIR/dummy
|
|
MIRRDIR=$COREDIR/mirror
|
|
|
|
TMPDIR=/dev/tmp
|
|
|
|
# Use the included busybox to do everything for maximum compatibility
|
|
# We also do so because we rely on the option "-c" for cp (reserve contexts)
|
|
|
|
# Reserve the original PATH
|
|
export OLDPATH=$PATH
|
|
export PATH="/data/busybox:$PATH"
|
|
|
|
log_print() {
|
|
echo $1
|
|
echo $1 >> $LOGFILE
|
|
log -p i -t Magisk "$1"
|
|
}
|
|
|
|
mktouch() {
|
|
mkdir -p ${1%/*} 2>/dev/null
|
|
if [ -z "$2" ]; then
|
|
touch $1 2>/dev/null
|
|
else
|
|
echo $2 > $1 2>/dev/null
|
|
fi
|
|
}
|
|
|
|
unblock() {
|
|
touch /dev/.magisk.unblock
|
|
exit
|
|
}
|
|
|
|
run_scripts() {
|
|
BASE=$MOUNTPOINT
|
|
if [ "$1" = "post-fs" ]; then
|
|
BASE=/cache/magisk
|
|
fi
|
|
|
|
for MOD in $BASE/* ; do
|
|
if [ ! -f "$MOD/disable" ]; then
|
|
if [ -f "$MOD/$1.sh" ]; then
|
|
chmod 755 $MOD/$1.sh
|
|
chcon 'u:object_r:system_file:s0' $MOD/$1.sh
|
|
log_print "$1: $MOD/$1.sh"
|
|
$MOD/$1.sh
|
|
fi
|
|
fi
|
|
done
|
|
}
|
|
|
|
loopsetup() {
|
|
LOOPDEVICE=
|
|
for DEV in $(ls /dev/block/loop*); do
|
|
if [ `losetup $DEV $1 >/dev/null 2>&1; echo $?` -eq 0 ]; then
|
|
LOOPDEVICE=$DEV
|
|
break
|
|
fi
|
|
done
|
|
}
|
|
|
|
target_size_check() {
|
|
e2fsck -p -f $1
|
|
curBlocks=`e2fsck -n $1 2>/dev/null | cut -d, -f3 | cut -d\ -f2`;
|
|
curUsedM=$((`echo "$curBlocks" | cut -d/ -f1` * 4 / 1024));
|
|
curSizeM=$((`echo "$curBlocks" | cut -d/ -f2` * 4 / 1024));
|
|
curFreeM=$((curSizeM - curUsedM));
|
|
}
|
|
|
|
travel() {
|
|
cd $1/$2
|
|
if [ -f ".replace" ]; then
|
|
rm -rf $TMPDIR/$2
|
|
mktouch $TMPDIR/$2 $1
|
|
else
|
|
for ITEM in * ; do
|
|
if [ ! -e "/$2/$ITEM" ]; then
|
|
# New item found
|
|
if [ $2 = "system" ]; then
|
|
# We cannot add new items to /system root, delete it
|
|
rm -rf $ITEM
|
|
else
|
|
if [ -d "$TMPDIR/dummy/$2" ]; then
|
|
# We are in a higher level, delete the lower levels
|
|
rm -rf $TMPDIR/dummy/$2
|
|
fi
|
|
# Mount the dummy parent
|
|
mktouch $TMPDIR/dummy/$2
|
|
|
|
mkdir -p $DUMMDIR/$2 2>/dev/null
|
|
if [ -d "$ITEM" ]; then
|
|
# Create new dummy directory
|
|
mkdir -p $DUMMDIR/$2/$ITEM
|
|
elif [ -L "$ITEM" ]; then
|
|
# Symlinks are small, copy them
|
|
cp -afc $ITEM $DUMMDIR/$2/$ITEM
|
|
else
|
|
# Create new dummy file
|
|
mktouch $DUMMDIR/$2/$ITEM
|
|
fi
|
|
|
|
# Clone the original /system structure (depth 1)
|
|
if [ -e "/$2" ]; then
|
|
for DUMMY in /$2/* ; do
|
|
if [ -d "$DUMMY" ]; then
|
|
# Create dummy directory
|
|
mkdir -p $DUMMDIR$DUMMY
|
|
elif [ -L "$DUMMY" ]; then
|
|
# Symlinks are small, copy them
|
|
cp -afc $DUMMY $DUMMDIR$DUMMY
|
|
else
|
|
# Create dummy file
|
|
mktouch $DUMMDIR$DUMMY
|
|
fi
|
|
done
|
|
fi
|
|
fi
|
|
fi
|
|
|
|
if [ -d "$ITEM" ]; then
|
|
# It's an directory, travel deeper
|
|
(travel $1 $2/$ITEM)
|
|
elif [ ! -L "$ITEM" ]; then
|
|
# Mount this file
|
|
mktouch $TMPDIR/$2/$ITEM $1
|
|
fi
|
|
done
|
|
fi
|
|
}
|
|
|
|
bind_mount() {
|
|
if [ -e "$1" -a -e "$2" ]; then
|
|
mount -o bind $1 $2
|
|
if [ "$?" -eq "0" ]; then
|
|
log_print "Mount: $1"
|
|
else
|
|
log_print "Mount Fail: $1"
|
|
fi
|
|
fi
|
|
}
|
|
|
|
merge_image() {
|
|
if [ -f "$1" ]; then
|
|
log_print "$1 found"
|
|
if [ -f "$IMG" ]; then
|
|
log_print "$IMG found, attempt to merge"
|
|
|
|
# Handle large images
|
|
target_size_check $1
|
|
MERGEUSED=$curUsedM
|
|
target_size_check $IMG
|
|
if [ "$MERGEUSED" -gt "$curFreeM" ]; then
|
|
NEWDATASIZE=$((((MERGEUSED + curUsedM) / 32 + 2) * 32))
|
|
log_print "Expanding $IMG to ${NEWDATASIZE}M..."
|
|
resize2fs $IMG ${NEWDATASIZE}M
|
|
fi
|
|
|
|
# Start merging
|
|
mkdir /cache/data_img
|
|
mkdir /cache/merge_img
|
|
|
|
# setup loop devices
|
|
loopsetup $IMG
|
|
LOOPDATA=$LOOPDEVICE
|
|
log_print "$LOOPDATA $IMG"
|
|
|
|
loopsetup $1
|
|
LOOPMERGE=$LOOPDEVICE
|
|
log_print "$LOOPMERGE $1"
|
|
|
|
if [ ! -z "$LOOPDATA" ]; then
|
|
if [ ! -z "$LOOPMERGE" ]; then
|
|
# if loop devices have been setup, mount images
|
|
OK=true
|
|
|
|
if [ `mount -t ext4 -o rw,noatime $LOOPDATA /cache/data_img >/dev/null 2>&1; echo $?` -ne 0 ]; then
|
|
OK=false
|
|
fi
|
|
|
|
if [ `mount -t ext4 -o rw,noatime $LOOPMERGE /cache/merge_img >/dev/null 2>&1; echo $?` -ne 0 ]; then
|
|
OK=false
|
|
fi
|
|
|
|
if ($OK); then
|
|
# Merge (will reserve selinux contexts)
|
|
cd /cache/merge_img
|
|
for MOD in *; do
|
|
log_print "Merging: $MOD"
|
|
rm -rf /cache/data_img/$MOD
|
|
cp -afc $MOD /cache/data_img/
|
|
done
|
|
log_print "Merge complete"
|
|
fi
|
|
|
|
umount /cache/data_img
|
|
umount /cache/merge_img
|
|
fi
|
|
fi
|
|
|
|
losetup -d $LOOPDATA
|
|
losetup -d $LOOPMERGE
|
|
|
|
rmdir /cache/data_img
|
|
rmdir /cache/merge_img
|
|
else
|
|
log_print "Moving $1 to $IMG "
|
|
mv $1 $IMG
|
|
fi
|
|
rm -f $1
|
|
fi
|
|
}
|
|
|
|
case $1 in
|
|
post-fs )
|
|
mv $LOGFILE /cache/last_magisk.log
|
|
touch $LOGFILE
|
|
chmod 644 $LOGFILE
|
|
log_print "Magisk post-fs mode running..."
|
|
|
|
if [ -d "/cache/magisk_merge" ]; then
|
|
cd /cache/magisk_merge
|
|
for MOD in *; do
|
|
log_print "Merging: $MOD"
|
|
rm -rf /cache/magisk/$MOD
|
|
mv $MOD /cache/magisk/$MOD
|
|
done
|
|
rm -rf /cache/magisk_merge
|
|
fi
|
|
|
|
for MOD in /cache/magisk/* ; do
|
|
if [ -f "$MOD/remove" ]; then
|
|
log_print "Remove module: $MOD"
|
|
rm -rf $MOD
|
|
elif [ -f "$MOD/auto_mount" -a ! -f "$MOD/disable" ]; then
|
|
find $MOD/system -type f 2>/dev/null | while read ITEM ; do
|
|
TARGET=${ITEM#$MOD}
|
|
bind_mount $ITEM $TARGET
|
|
done
|
|
fi
|
|
done
|
|
|
|
run_scripts post-fs
|
|
unblock
|
|
;;
|
|
|
|
post-fs-data )
|
|
if [ `mount | grep " /data " >/dev/null 2>&1; echo $?` -ne 0 ]; then
|
|
# /data not mounted yet, we will be called again later
|
|
unblock
|
|
fi
|
|
|
|
if [ `mount | grep " /data " | grep "tmpfs" >/dev/null 2>&1; echo $?` -eq 0 ]; then
|
|
# /data not mounted yet, we will be called again later
|
|
unblock
|
|
fi
|
|
|
|
log_print "Magisk post-fs-data mode running..."
|
|
|
|
# Live patch sepolicy
|
|
/data/magisk/sepolicy-inject --live -s su
|
|
|
|
[ ! -d "$MOUNTPOINT" ] && mkdir -p $MOUNTPOINT
|
|
|
|
# Cache support
|
|
if [ -d "/cache/data_bin" ]; then
|
|
rm -rf /data/busybox /data/magisk
|
|
mkdir -p /data/busybox
|
|
mv /cache/data_bin /data/magisk
|
|
chmod 755 /data/busybox /data/magisk /data/magisk/*
|
|
chcon 'u:object_r:system_file:s0' /data/busybox /data/magisk /data/magisk/*
|
|
/data/magisk/busybox --install -s /data/busybox
|
|
# Prevent issues
|
|
rm -f /data/busybox/su /data/busybox/sh
|
|
fi
|
|
mv /cache/stock_boot.img /data 2>/dev/null
|
|
|
|
chmod 644 $IMG /cache/magisk.img /data/magisk_merge.img 2>/dev/null
|
|
|
|
# Handle image merging
|
|
merge_image /cache/magisk.img
|
|
merge_image /data/magisk_merge.img
|
|
|
|
# Mount magisk.img
|
|
if [ `cat /proc/mounts | grep $MOUNTPOINT >/dev/null 2>&1; echo $?` -ne 0 ]; then
|
|
loopsetup $IMG
|
|
if [ ! -z "$LOOPDEVICE" ]; then
|
|
mount -t ext4 -o rw,noatime $LOOPDEVICE $MOUNTPOINT
|
|
fi
|
|
fi
|
|
|
|
if [ `cat /proc/mounts | grep $MOUNTPOINT >/dev/null 2>&1; echo $?` -ne 0 ]; then
|
|
log_print "magisk.img mount failed, nothing to do :("
|
|
unblock
|
|
fi
|
|
|
|
log_print "Preparing modules"
|
|
# First do cleanups
|
|
rm -rf $DUMMDIR
|
|
rmdir $(find $MOUNTPOINT -type d -depth ! -path "*core*" ) 2>/dev/null
|
|
rm -rf $COREDIR/bin
|
|
|
|
mkdir -p $DUMMDIR
|
|
mkdir -p $MIRRDIR/system
|
|
|
|
# Travel through all mods
|
|
for MOD in $MOUNTPOINT/* ; do
|
|
if [ -f "$MOD/remove" ]; then
|
|
log_print "Remove module: $MOD"
|
|
rm -rf $MOD
|
|
elif [ -f "$MOD/auto_mount" -a -d "$MOD/system" -a ! -f "$MOD/disable" ]; then
|
|
(travel $MOD system)
|
|
fi
|
|
done
|
|
|
|
# Proper permissions for generated items
|
|
chmod 755 $(find $COREDIR -type d)
|
|
chmod 644 $(find $COREDIR -type f)
|
|
find $COREDIR -type d -exec chmod 755 {} \;
|
|
find $COREDIR -type f -exec chmod 644 {} \;
|
|
|
|
# linker(64), t*box, and app_process* are required if we need to dummy mount bin folder
|
|
if [ -f "$TMPDIR/dummy/system/bin" ]; then
|
|
rm -f $DUMMDIR/system/bin/linker* $DUMMDIR/system/bin/t*box $DUMMDIR/system/bin/app_process*
|
|
cd /system/bin
|
|
cp -afc linker* t*box app_process* $DUMMDIR/system/bin/
|
|
fi
|
|
|
|
# Unmount, shrink, remount
|
|
if [ `umount $MOUNTPOINT >/dev/null 2>&1; echo $?` -eq 0 ]; then
|
|
losetup -d $LOOPDEVICE
|
|
target_size_check $IMG
|
|
NEWDATASIZE=$(((curUsedM / 32 + 2) * 32))
|
|
if [ "$curSizeM" -gt "$NEWDATASIZE" ]; then
|
|
log_print "Shrinking $IMG to ${NEWDATASIZE}M..."
|
|
resize2fs $IMG ${NEWDATASIZE}M
|
|
fi
|
|
loopsetup $IMG
|
|
if [ ! -z "$LOOPDEVICE" ]; then
|
|
mount -t ext4 -o rw,noatime $LOOPDEVICE $MOUNTPOINT
|
|
fi
|
|
fi
|
|
|
|
if [ `cat /proc/mounts | grep $MOUNTPOINT >/dev/null 2>&1; echo $?` -ne 0 ]; then
|
|
log_print "magisk.img mount failed, nothing to do :("
|
|
unblock
|
|
fi
|
|
|
|
# Remove crap folder
|
|
rm -rf $MOUNTPOINT/lost+found
|
|
|
|
# Start doing tasks
|
|
|
|
# Stage 1
|
|
log_print "Bind mount dummy system"
|
|
find $TMPDIR/dummy -type f 2>/dev/null | while read ITEM ; do
|
|
TARGET=${ITEM#$TMPDIR/dummy}
|
|
ORIG=$DUMMDIR$TARGET
|
|
bind_mount $ORIG $TARGET
|
|
done
|
|
|
|
# Stage 2
|
|
log_print "Bind mount module items"
|
|
find $TMPDIR/system -type f 2>/dev/null | while read ITEM ; do
|
|
TARGET=${ITEM#$TMPDIR}
|
|
ORIG=`cat $ITEM`$TARGET
|
|
bind_mount $ORIG $TARGET
|
|
rm -f $DUMMDIR${TARGET%/*}/.dummy 2>/dev/null
|
|
done
|
|
|
|
# Run scripts
|
|
run_scripts post-fs-data
|
|
|
|
# Bind hosts for Adblock apps
|
|
[ ! -f "$COREDIR/hosts" ] && cp -afc /system/etc/hosts $COREDIR/hosts
|
|
log_print "Enabling systemless hosts file support"
|
|
bind_mount $COREDIR/hosts /system/etc/hosts
|
|
|
|
# Stage 3
|
|
log_print "Bind mount system mirror"
|
|
bind_mount /system $MIRRDIR/system
|
|
|
|
# Stage 4
|
|
log_print "Bind mount mirror items"
|
|
# Find all empty directores and dummy files, they should be mounted by original files in /system
|
|
find $DUMMDIR -type d -exec sh -c '[ -z "$(ls -A $1)" ] && echo $1' -- {} \; -o \( -type f -size 0 -print \) | while read ITEM ; do
|
|
ORIG=${ITEM/dummy/mirror}
|
|
TARGET=${ITEM#$DUMMDIR}
|
|
bind_mount $ORIG $TARGET
|
|
done
|
|
|
|
# All done
|
|
rm -rf $TMPDIR
|
|
|
|
unblock
|
|
;;
|
|
|
|
service )
|
|
# Version info
|
|
setprop magisk.version 8
|
|
log_print "Magisk late_start service mode running..."
|
|
run_scripts service
|
|
[ -f "$COREDIR/magiskhide/enable" ] && setprop magisk.hide 1
|
|
;;
|
|
|
|
hide )
|
|
# Enable magiskhide
|
|
[ ! -f "$COREDIR/magiskhide/hidelist" ] && mktouch $COREDIR/magiskhide/hidelist
|
|
# Add preset for Safety Net
|
|
if [ $(grep -c "com.google.android.gms.unstable" $COREDIR/magiskhide/hidelist) -eq "0" ]; then
|
|
mv $COREDIR/magiskhide/hidelist $COREDIR/magiskhide/hidelist.tmp
|
|
echo "com.google.android.gms.unstable" > $COREDIR/magiskhide/hidelist
|
|
cat $COREDIR/magiskhide/hidelist.tmp >> $COREDIR/magiskhide/hidelist
|
|
rm -f $COREDIR/magiskhide/hidelist.tmp
|
|
fi
|
|
chmod 755 $COREDIR/magiskhide $COREDIR/magiskhide/*
|
|
log_print "Starting Magisk Hide"
|
|
exec /data/magisk/magiskhide $COREDIR/magiskhide/hidelist > $HIDELOG
|
|
;;
|
|
|
|
esac
|