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mirror of https://github.com/topjohnwu/Magisk synced 2024-11-11 17:38:25 +01:00

Add zip static files

This commit is contained in:
topjohnwu 2016-09-14 10:31:13 +08:00
parent 0f12a9de3b
commit 88a97319cc
16 changed files with 1197 additions and 1 deletions

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# Magisk
Static binaries included:
* Busybox: http://forum.xda-developers.com/android/software-hacking/tool-busybox-flashable-archs-t3348543
* Open source su binary: https://github.com/seSuperuser/Superuser

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Subproject commit dd2d556962df6d38c98e6003113c0cb899facc30
Subproject commit c69db035ee32e34256c3cd8562e28bc4f5fba2db

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#!/sbin/sh
##########################################################################################
#
# Magisk Boot Image Patcher
# by topjohnwu
#
# This zip will patch your boot image with Magisk support
#
##########################################################################################
TMPDIR=/tmp
if [ -z "$BOOTMODE" ]; then
BOOTMODE=false
fi
mount -o rw,remount rootfs /
mkdir /magisk 2>/dev/null
if ($BOOTMODE); then
TMPDIR=/data/tmp
mount -o ro,remount rootfs /
fi
INSTALLER=$TMPDIR/magisk
COREDIR=/magisk/.core
##########################################################################################
# Flashable update-binary preparation
##########################################################################################
OUTFD=$2
ZIP=$3
readlink /proc/$$/fd/$OUTFD 2>/dev/null | grep /tmp >/dev/null
if [ "$?" -eq "0" ]; then
OUTFD=0
for FD in `ls /proc/$$/fd`; do
readlink /proc/$$/fd/$FD 2>/dev/null | grep pipe >/dev/null
if [ "$?" -eq "0" ]; then
ps | grep " 3 $FD " | grep -v grep >/dev/null
if [ "$?" -eq "0" ]; then
OUTFD=$FD
break
fi
fi
done
fi
mkdir -p $INSTALLER
cd $INSTALLER
unzip -o "$ZIP"
##########################################################################################
# Functions
##########################################################################################
ui_print() {
if ($BOOTMODE); then
echo "$1"
else
echo -n -e "ui_print $1\n" >> /proc/self/fd/$OUTFD
echo -n -e "ui_print\n" >> /proc/self/fd/$OUTFD
fi
}
getvar() {
local VARNAME=$1
local VALUE=$(eval echo \$"$VARNAME");
for FILE in /data/.magisk /cache/.magisk /system/.magisk; do
if [ -z "$VALUE" ]; then
LINE=$(cat $FILE 2>/dev/null | grep "$VARNAME=")
if [ ! -z "$LINE" ]; then
VALUE=${LINE#*=}
fi
fi
done
eval $VARNAME=\$VALUE
}
find_boot_image() {
if [ -z "$BOOTIMAGE" ]; then
for PARTITION in kern-a KERN-A android_boot ANDROID_BOOT kernel KERNEL boot BOOT lnx LNX; do
BOOTIMAGE=$(readlink /dev/block/by-name/$PARTITION || readlink /dev/block/platform/*/by-name/$PARTITION || readlink /dev/block/platform/*/*/by-name/$PARTITION)
if [ ! -z "$BOOTIMAGE" ]; then break; fi
done
fi
}
is_mounted() {
if [ ! -z "$2" ]; then
cat /proc/mounts | grep $1 | grep $2, >/dev/null
else
cat /proc/mounts | grep $1 >/dev/null
fi
return $?
}
grep_prop() {
REGEX="s/^$1=//p"
shift
FILES=$@
if [ -z "$FILES" ]; then
FILES='/system/build.prop'
fi
cat $FILES 2>/dev/null | sed -n $REGEX | head -n 1
}
repack_boot() {
cd $RAMDISK
find . | cpio -o -H newc 2>/dev/null | gzip -9 > $UNPACKDIR/ramdisk.gz
cd $UNPACKDIR
$BINDIR/bootimgtools --repack $ORIGBOOT
if [ -f chromeos ]; then
echo " " > config
echo " " > bootloader
$CHROMEDIR/futility vbutil_kernel --pack new-boot.img.signed --keyblock $CHROMEDIR/kernel.keyblock --signprivate $CHROMEDIR/kernel_data_key.vbprivk --version 1 --vmlinuz new-boot.img --config config --arch arm --bootloader bootloader --flags 0x1
rm -f new-boot.img
mv new-boot.img.signed new-boot.img
fi
if ($SAMSUNG); then
SAMSUNG_CHECK=$(cat new-boot.img | grep SEANDROIDENFORCE)
if [ $? -ne 0 ]; then
echo -n "SEANDROIDENFORCE" >> new-boot.img
fi
fi
mv new-boot.img $NEWBOOT
$BINDIR/bootimgtools --hexpatch $NEWBOOT \
49010054011440B93FA00F71E9000054010840B93FA00F7189000054001840B91FA00F7188010054 \
A1020054011440B93FA00F7140020054010840B93FA00F71E0010054001840B91FA00F7181010054
}
##########################################################################################
# Detection
##########################################################################################
ui_print "****************************"
ui_print "Magisk v7 Boot Image Patcher"
ui_print "****************************"
if [ ! -d "$INSTALLER/common" ]; then
ui_print "! Failed: Unable to extract zip file!"
exit 1
fi
ui_print "- Mounting /system(ro), /cache, /data"
mount -o ro /system 2>/dev/null
mount /cache 2>/dev/null
mount /data 2>/dev/null
if [ ! -f '/system/build.prop' ]; then
ui_print "! Failed: /system could not be mounted!"
exit 1
fi
API=$(grep_prop ro.build.version.sdk)
ABI=$(grep_prop ro.product.cpu.abi | cut -c-3)
ABI2=$(grep_prop ro.product.cpu.abi2 | cut -c-3)
ABILONG=$(grep_prop ro.product.cpu.abi)
ARCH=arm
IS64BIT=
if [ "$ABI" = "x86" ]; then ARCH=x86; fi;
if [ "$ABI2" = "x86" ]; then ARCH=x86; fi;
if [ "$ABILONG" = "arm64-v8a" ]; then ARCH=arm64; IS64BIT=1; fi;
if [ "$ABILONG" = "x86_64" ]; then ARCH=x64; IS64BIT=1; fi;
if [ "$API" -lt "21" ]; then
ui_print "! Magisk is only for Lollipop 5.0+ (SDK 21+)"
exit 1
fi
ui_print "- Device platform: $ARCH"
BINDIR=$INSTALLER/arm
if [ "$ARCH" = "x86" -o "$ARCH" = "x64" ]; then
BINDIR=$INSTALLER/x86
fi
find_boot_image
if [ -z "$BOOTIMAGE" ]; then
ui_print "! Unable to detect boot image"
exit 1
fi
if [ -z "$NOOVERRIDE" ]; then
# read override variables
getvar KEEPVERITY
getvar KEEPFORCEENCRYPT
getvar KEEPSUPERSU
fi
if [ -z "$KEEPVERITY" ]; then
# we don't keep dm-verity by default
KEEPVERITY=false
fi
if [ -z "$KEEPFORCEENCRYPT" ]; then
# we don't keep forceencrypt by default
KEEPFORCEENCRYPT=false
fi
if [ -z "$KEEPSUPERSU" ]; then
# we don't keep SuperSU by default
KEEPSUPERSU=false
fi
SAMSUNG=false
SAMSUNG_CHECK=$(cat /system/build.prop | grep "ro.build.fingerprint=" | grep -i "samsung")
if [ $? -eq 0 ]; then
SAMSUNG=true
fi
##########################################################################################
# Image
##########################################################################################
if (is_mounted /data); then
IMG=/data/magisk.img
else
IMG=/cache/magisk.img
ui_print "- Data unavalible, use cache workaround"
fi
if [ -f "$IMG" ]; then
ui_print "- $IMG detected!"
else
ui_print "- Creating $IMG"
make_ext4fs -l 64M -a /magisk -S $INSTALLER/common/file_contexts_image $IMG
fi
if (! is_mounted /magisk); then
ui_print "- Mounting $IMG to /magisk"
LOOPDEVICE=
for LOOP in 0 1 2 3 4 5 6 7; do
if (! is_mounted /magisk); then
LOOPDEVICE=/dev/block/loop$LOOP
if [ ! -f "$LOOPDEVICE" ]; then
mknod $LOOPDEVICE b 7 $LOOP
fi
losetup $LOOPDEVICE $IMG
if [ "$?" -eq "0" ]; then
mount -t ext4 -o loop $LOOPDEVICE /magisk
if (! is_mounted /magisk); then
/system/bin/toolbox mount -t ext4 -o loop $LOOPDEVICE /magisk
fi
if (! is_mounted /magisk); then
/system/bin/toybox mount -t ext4 -o loop $LOOPDEVICE /magisk
fi
fi
if (is_mounted /magisk); then
break;
fi
fi
done
fi
rm -rf $COREDIR/bin 2>/dev/null
##########################################################################################
# Environment
##########################################################################################
ui_print "- Constructing environment"
if (is_mounted /data); then
rm -rf /data/busybox /data/magisk
mkdir -p /data/busybox
mkdir -p /data/magisk
cp -af $BINDIR/busybox $BINDIR/su $BINDIR/sepolicy-inject /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
else
rm -rf /cache/data_bin
mkdir -p /cache/data_bin
cp -af $BINDIR/busybox $BINDIR/su $BINDIR/sepolicy-inject /cache/data_bin
fi
##########################################################################################
# Boot image patch
##########################################################################################
ui_print "- Found Boot Image: $BOOTIMAGE"
rm -rf $TMPDIR/boottmp 2>/dev/null
mkdir -p $TMPDIR/boottmp
CHROMEDIR=$INSTALLER/chromeos
ORIGBOOT=$TMPDIR/boottmp/boot.img
NEWBOOT=$TMPDIR/boottmp/new-boot.img
UNPACKDIR=$TMPDIR/boottmp/bootunpack
RAMDISK=$TMPDIR/boottmp/ramdisk
mkdir -p $UNPACKDIR
mkdir -p $RAMDISK
chmod 777 $CHROMEDIR/futility $BINDIR/*
ui_print "- Dumping boot image"
dd if=$BOOTIMAGE of=$ORIGBOOT
ui_print "- Unpacking boot image"
cd $UNPACKDIR
$BINDIR/bootimgtools --extract $ORIGBOOT
chmod 755 $(find $TMPDIR/boottmp -type d)
chmod 644 $(find $TMPDIR/boottmp -type f)
cd $RAMDISK
gunzip -c < $UNPACKDIR/ramdisk.gz | cpio -i
if [ -f "supersu" ]; then
KEEPSUPERSU=true
fi
if (! $KEEPSUPERSU); then
# Backups
if [ -d ".backup" ]; then
ui_print "- Reverting ramdisk backup"
cp -af .backup/* .
rm -rf magisk init.magisk.rc sbin/magic_mask.sh sbin/magisk_wrapper.sh 2>/dev/null
else
if [ -d "magisk" -o -d "su" ]; then
cp -af /data/stock_boot*.gz /data/stock_boot.img.gz 2>/dev/null
gzip -d /data/stock_boot.img.gz 2>/dev/null
if [ -f "/data/stock_boot.img" ]; then
ui_print "- Using boot image backup"
cp -af /data/stock_boot.img $ORIGBOOT
rm -rf $RAMDISK $TMPDIR
mkdir -p $UNPACKDIR
mkdir -p $RAMDISK
cd $UNPACKDIR
$BINDIR/bootimgtools --extract $ORIGBOOT
cd $RAMDISK
gunzip -c < $UNPACKDIR/ramdisk.gz | cpio -i
else
ui_print "! No backups found"
ui_print "! Installer will still proceed, but might cause issues"
ui_print "! If possible, please restore to stock boot then flash Magisk again"
# Force removing SuperSU parts
rm -rf su init.supersu.rc sbin/launch_daemonsu.sh 2>/dev/null
fi
fi
ui_print "- Creating backups"
mkdir .backup
cp -af init.rc *fstab* verity_key sepolicy .backup 2>/dev/null
if (is_mounted /data); then
cp -af $ORIGBOOT /data/stock_boot.img
else
cp -af $ORIGBOOT /cache/stock_boot.img
fi
fi
fi
# Patch ramdisk
ui_print "- Patching ramdisk"
if [ $(grep -c "import /init.magisk.rc" init.rc) -eq "0" ]; then
sed -i "/import \/init\.environ\.rc/iimport /init.magisk.rc" init.rc
fi
if (! $KEEPSUPERSU); then
sed -i "/selinux.reload_policy/d" init.rc
find . -type f -name "*fstab*" 2>/dev/null | while read FSTAB ; do
if (! $KEEPVERITY); then
sed -i "s/,support_scfs//g" $FSTAB
sed -i 's;,\{0,1\}verify\(=[^,]*\)\{0,1\};;g' $FSTAB
fi
if (! $KEEPFORCEENCRYPT); then
sed -i "s/forceencrypt/encryptable/g" $FSTAB
sed -i "s/forcefdeorfbe/encryptable/g" $FSTAB
fi
done
rm verity_key 2>/dev/null
# sepolicy patches
# LD_LIBRARY_PATH=$BINDIR $BINDIR/supolicy --file sepolicy sepolicy.patched
# mv -f sepolicy.patched sepolicy
. $INSTALLER/common/supatch.sh
allow su_daemon "rootfs proc init system_file" "file dir lnk_file" "*"
allow init su_daemon unix_stream_socket connectto
allow su_daemon shell_exec file getattr
allow su_daemon tmpfs dir "*"
allow su_daemon selinuxfs file "read open write"
allow su_daemon kernel security "read_policy load_policy"
allow su_daemon toolbox_exec file "*"
allow kernel su fd use
allow init "rootfs system_file" file "*"
if $BINDIR/sepolicy-inject -e -s toolbox -P sepolicy; then
allow toolbox property_socket sock_file write
allow toolbox init unix_stream_socket connectto
allow toolbox init fifo_file "*"
allow toolbox default_prop property_service "*"
allow toolbox device dir "*"
fi
# Just in case
$BINDIR/sepolicy-inject -Z init -P sepolicy
$BINDIR/sepolicy-inject -Z toolbox -P sepolicy
$BINDIR/sepolicy-inject -Z su_daemon -P sepolicy
# Fix Xposed
allow zygote app_data_file "dir file" "*"
allow zygote input_device "dir chr_file" "*"
allow untrusted_app untrusted_app capability setgid
allow "system_server system_app" "app_data_file" "file dir" "*"
fi
# Add new items
mkdir -p magisk 2>/dev/null
cp -af $INSTALLER/common/init.magisk.rc init.magisk.rc
cp -af $INSTALLER/common/magic_mask.sh sbin/magic_mask.sh
cp -af $INSTALLER/common/magisk_wrapper.sh sbin/magisk_wrapper.sh
if (! $KEEPSUPERSU); then
cp -af $BINDIR/su $BINDIR/sepolicy-inject magisk
else
touch supersu
fi
chmod 0755 magisk magisk/*
chmod 0750 init.magisk.rc sbin/magic_mask.sh sbin/magisk_wrapper.sh
ui_print "- Repacking boot image"
repack_boot
ORIGSIZE=$(ls -l $ORIGBOOT | awk '{print $5}')
NEWSIZE=$(ls -l $NEWBOOT | awk '{print $5}')
if [ "$NEWSIZE" -gt "$ORIGSIZE" ]; then
ui_print "! Boot partition space insufficient"
ui_print "! Remove ramdisk backups and binaries"
rm -rf $RAMDISK/.backup $NEWBOOT $RAMDISK/magisk/* 2>/dev/null
if (! $KEEPSUPERSU); then
mkdir -p /cache/magisk
cp $BINDIR/su $BINDIR/sepolicy-inject /cache/magisk
chmod 755 /cache/magisk /cache/magisk/*
chcon 'u:object_r:system_file:s0' /cache/magisk /cache/magisk/*
fi
repack_boot
NEWSIZE=$(ls -l $NEWBOOT | awk '{print $5}')
if [ "$NEWSIZE" -gt "$ORIGSIZE" ]; then
ui_print "! Boot partition size still too small..."
ui_print "! Unable to install Magisk"
exit 1
fi
fi
chmod 644 $NEWBOOT
ui_print "- Flashing new boot image"
dd if=/dev/zero of=$BOOTIMAGE bs=4096 2>/dev/null
dd if=$NEWBOOT of=$BOOTIMAGE bs=4096
if (! $BOOTMODE); then
umount /magisk
losetup -d $LOOPDEVICE
umount /system
fi
ui_print "- Done"
exit 0

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# this is a dummy file, the magic is in update-binary

BIN
zip_static/arm/busybox Normal file

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BIN
zip_static/arm/su Normal file

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/magisk(/.*)? u:object_r:system_file:s0

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# Triggers
on post-fs
# Paths
export PATH /sbin:/vendor/bin:/system/sbin:/system/bin:/system/xbin:/su/bin:/magisk/.core/bin:/magisk/busybox/bin:/data/magisk
# Start root
start phhsu
wait /dev/su 1
start magisk_pfs
wait /dev/unblock 20
rmdir /dev/unblock
on post-fs-data
# Try to start root again in case post-fs failed
start phhsu
wait /dev/su 1
start magisk_pfsd
wait /dev/unblock 20
rmdir /dev/unblock
on property:magisk.root=*
start magisk_root
# Services
service phhsu /sbin/magisk_wrapper.sh phhsu
user root
seclabel u:r:su_daemon:s0
oneshot
# launch post-fs script
service magisk_pfs /sbin/magisk_wrapper.sh post-fs
user root
seclabel u:r:init:s0
oneshot
# launch post-fs-data script
service magisk_pfsd /sbin/magisk_wrapper.sh post-fs-data
user root
seclabel u:r:init:s0
oneshot
# launch late_start script
service magisk_service /sbin/magisk_wrapper.sh service
class late_start
user root
seclabel u:r:init:s0
oneshot
# root handling
service magisk_root /sbin/magisk_wrapper.sh root
user root
seclabel u:r:init:s0
oneshot

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#!/system/bin/sh
LOGFILE=/cache/magisk.log
IMG=/data/magisk.img
COREDIR=/magisk/.core
DUMMDIR=$COREDIR/dummy
MIRRDIR=$COREDIR/mirror
TMPDIR=/cache/tmp
# Use the included busybox to do everything in all scripts for maximum compatibility
# We also do so because we rely on the option "-c" for cp (reserve contexts)
export PATH="/data/busybox:$PATH"
# Version info
setprop magisk.version 7
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() {
mkdir -p /dev/unblock
exit
}
run_scripts() {
BASE=/magisk
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)
if [ `cp -afc /cache/merge_img/. /cache/data_img >/dev/null 2>&1; echo $?` -eq 0 ]; then
log_print "Merge complete"
fi
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 $LOGFILE
log_print "Magisk post-fs mode running..."
for MOD in /cache/magisk/* ; do
if [ -f "$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..."
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
# Handle image merging
merge_image /cache/magisk.img
merge_image /data/magisk_merge.img
# Mount /data image
if [ `cat /proc/mounts | grep /magisk >/dev/null 2>&1; echo $?` -ne 0 ]; then
loopsetup $IMG
if [ ! -z "$LOOPDEVICE" ]; then
mount -t ext4 -o rw,noatime $LOOPDEVICE /magisk
fi
fi
if [ `cat /proc/mounts | grep /magisk >/dev/null 2>&1; echo $?` -ne 0 ]; then
log_print "magisk.img mount failed, nothing to do :("
unblock
fi
mkdir -p $DUMMDIR
mkdir -p $MIRRDIR/system
log_print "Preparing modules"
# First do cleanups
rm -rf $DUMMDIR/*
rmdir $(find /magisk -type d -depth ! -path "*core*" ) 2>/dev/null
# Travel through all mods
for MOD in /magisk/* ; do
if [ -f "$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
find $DUMMDIR -type d -exec chmod 755 {} \;
find $DUMMDIR -type f -exec chmod 644 {} \;
# linker(64), t*box, and app_process* are required if we need to dummy mount bin folder
if [ -f "$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
# Shrink the image if possible
if [ `umount /magisk >/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 /magisk
fi
fi
if [ `cat /proc/mounts | grep /magisk >/dev/null 2>&1; echo $?` -ne 0 ]; then
log_print "magisk.img mount failed, nothing to do :("
unblock
fi
# Remove legacy phh root and crap folder
rm -rf /magisk/phh
rm -rf /magisk/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
if [ ! -f "$COREDIR/hosts" ]; then
cp -afc /system/etc/hosts $COREDIR/hosts
fi
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 $DUMMDIR -type d -exec sh -c 'if [ -z "$(ls -A $1)" ]; then echo $1; fi' -- {} \; -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 $TMPDIR
if [ ! -f "/supersu" ]; then
# Expose root path
setprop magisk.supath /magisk/.core/bin
setprop magisk.root 1
fi
unblock
;;
service )
rm -rf /cache/unblock
log_print "Magisk late_start service mode running..."
run_scripts service
;;
root )
SUPATH=$(getprop magisk.supath)
ROOT=$(getprop magisk.root)
if [ "$ROOT" -eq "1" ]; then
log_print "Enabling root"
rm -f SUPATH
ln -s /data/magisk $SUPATH
else
log_print "Disabling root"
rm -f SUPATH
fi
;;
esac

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#!/system/bin/sh
BINDIR=/magisk/.core/bin
# Find where's su binary
for DIR in /magisk /data/magisk /cache/magisk /su/bin; do
[ -f "$DIR/su" ] && break
done
case $1 in
phhsu )
if [ ! -d "/dev/su" ]; then
$DIR/sepolicy-inject --live --auto -s su
exec $DIR/su --daemon
fi
;;
post-fs )
# If su call fails, temporary switch to permissive (workaround)
# This workaround will not always work (e.g. Samsung stock boot images)
if [ `$DIR/su -c "/sbin/magic_mask.sh post-fs" >/dev/null 2>&1; echo $?` -ne 0 ]; then
echo 0 > /sys/fs/selinux/enforce
/sbin/magic_mask.sh post-fs
echo 1 > /sys/fs/selinux/enforce
fi
;;
post-fs-data )
# su call shall always work
if [ `$DIR/su -c "/sbin/magic_mask.sh post-fs-data" >/dev/null 2>&1; echo $?` -ne 0 ]; then
/sbin/magic_mask.sh post-fs-data
fi
;;
service )
# su call shall always work
if [ `$DIR/su -c "/sbin/magic_mask.sh service" >/dev/null 2>&1; echo $?` -ne 0 ]; then
/sbin/magic_mask.sh service
fi
;;
root )
# This will only be used in phh root
$DIR/su -c "/sbin/magic_mask.sh root"
;;
esac

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#Extracted from global_macros
rw_socket_perms="ioctl read getattr write setattr lock append bind connect getopt setopt shutdown"
create_socket_perms="create $rw_socket_perms"
rw_stream_socket_perms="$rw_socket_perms listen accept"
create_stream_socket_perms="create $rw_stream_socket_perms"
# bootimg.sh
#allow <list of scontext> <list of tcontext> <class> <list of perm>
allow() {
[ -z "$1" -o -z "$2" -o -z "$3" ] && false
for s in $1;do
for t in $2;do
for c in $3;do
echo "allow ($s) ($t) ($c) ($4)"
if [ "$4" = "*" ]; then
$BINDIR/sepolicy-inject -s $s -t $t -c $c -P sepolicy >/dev/null 2>&1
else
$BINDIR/sepolicy-inject -s $s -t $t -c $3 -p $(echo $4|tr ' ' ',') -P sepolicy 2>/dev/null 2>&1
fi
done
done
done
}
noaudit() {
for s in $1;do
for t in $2;do
for p in $4;do
$BINDIR/sepolicy-inject -s $s -t $t -c $3 -p $p -P sepolicy 2>/dev/null 2>&1
done
done
done
}
# su-communication
#allowSuClient <scontext>
allowSuClient() {
#All domain-s already have read access to rootfs
allow $1 rootfs file "execute_no_trans execute" #TODO: Why do I need execute?!? (on MTK 5.1, kernel 3.10)
allow $1 su_daemon unix_stream_socket "connectto getopt"
allow $1 su_device dir "search read"
allow $1 su_device sock_file "read write"
allow su_daemon $1 "fd" "use"
allow su_daemon $1 fifo_file "read write getattr ioctl"
#Read /proc/callerpid/cmdline in from_init, drop?
#Requiring sys_ptrace sucks
allow su_daemon "$1" "dir" "search"
allow su_daemon "$1" "file" "read open"
allow su_daemon "$1" "lnk_file" "read"
allow su_daemon su_daemon "capability" "sys_ptrace"
}
suDaemonTo() {
allow su_daemon $1 "process" "transition"
noaudit su_daemon $1 "process" "siginh rlimitinh noatsecure"
}
suDaemonRights() {
allow su_daemon rootfs file "entrypoint"
allow su_daemon su_daemon "dir" "search read"
allow su_daemon su_daemon "file" "read write open"
allow su_daemon su_daemon "lnk_file" "read"
allow su_daemon su_daemon "unix_dgram_socket" "create connect write"
allow su_daemon su_daemon "unix_stream_socket" "$create_stream_socket_perms"
allow su_daemon devpts chr_file "read write open getattr"
#untrusted_app_devpts not in Android 4.4
allow su_daemon untrusted_app_devpts chr_file "read write open getattr" || true
allow su_daemon su_daemon "capability" "setuid setgid"
#Access to /data/data/me.phh.superuser/xxx
allow su_daemon app_data_file "dir" "getattr search write add_name"
allow su_daemon app_data_file "file" "getattr read open lock"
#FIXME: This shouldn't exist
#dac_override can be fixed by having pts_slave's fd forwarded over socket
#Instead of forwarding the name
allow su_daemon su_daemon "capability" "dac_override"
allow su_daemon su_daemon "process" "fork sigchld"
#toolbox needed for log
allow su_daemon toolbox_exec "file" "execute read open execute_no_trans" || true
#Create /dev/me.phh.superuser. Could be done by init
allow su_daemon device "dir" "write add_name"
allow su_daemon su_device "dir" "create setattr remove_name add_name"
allow su_daemon su_device "sock_file" "create unlink"
#Allow su daemon to start su apk
allow su_daemon zygote_exec "file" "execute read open execute_no_trans"
allow su_daemon zygote_exec "lnk_file" "read getattr"
#Send request to APK
allow su_daemon su_device dir "search write add_name"
#Allow su_daemon to switch to su or su_sensitive
allow su_daemon su_daemon "process" "setexec"
#Allow su_daemon to execute a shell (every commands are supposed to go through a shell)
allow su_daemon shell_exec file "execute read open"
allow su_daemon su_daemon "capability" "chown"
suDaemonTo su
}
# rights
#In this file lies the real permissions of a process running in su
suBind() {
#Allow to override /system/xbin/su
allow su_daemon su_exec "file" "mounton read"
#We will create files in /dev/su/, they will be marked as su_device
allow su_daemon su_device "dir file lnk_file" "*"
allow su_daemon su_device "file" "relabelfrom"
allow su_daemon system_file "file" "relabelto"
}
#This is the vital minimum for su to open a uid 0 shell
suRights() {
#Admit su_daemon is meant to be god.
allow su_daemon su_daemon "capability" "sys_admin"
allow servicemanager su "dir" "search read"
allow servicemanager su "file" "open read"
allow servicemanager su "process" "getattr"
allow servicemanager su "binder" "transfer"
[ "$API" -ge 20 ] && allow system_server su binder "call"
}
suL9() {
allow su_daemon su_daemon "dir file lnk_file" "*"
allow su_daemon system_data_file "dir file lnk_file" "*"
allow su_daemon "labeledfs" filesystem "associate"
allow su_daemon su_daemon process setfscreate
allow su_daemon tmpfs filesystem associate
allow su_daemon su_daemon file relabelfrom
allow su_daemon system_file file mounton
}
otherToSU() {
# allowLog
if allow su logd unix_dgram_socket "sendto";then
allow logd su dir "search"
allow logd su file "read open getattr"
fi
# suBackL0
[ "$API" -ge 20 ] && allow system_server su binder "call transfer"
#ES Explorer opens a sokcet
allow untrusted_app su unix_stream_socket "$rw_socket_perms connectto"
#Any domain is allowed to send su "sigchld"
#TODO: Have sepolicy-inject handle that
#allow "=domain" su process "sigchld"
allow surfaceflinger su "process" "sigchld"
# suNetworkL0
$BINDIR/sepolicy-inject -a netdomain -s su -P sepolicy
$BINDIR/sepolicy-inject -a bluetoothdomain -s su -P sepolicy
# suBackL6
#Used by CF.lumen (restarts surfaceflinger, and communicates with it)
#TODO: Add a rule to enforce surfaceflinger doesn't have dac_override
allow surfaceflinger app_data_file "dir file lnk_file" "*"
$BINDIR/sepolicy-inject -a mlstrustedsubject -s surfaceflinger -P sepolicy
}
#Samsung specific
#Prevent system from loading policy
if $BINDIR/sepolicy-inject -e -s knox_system_app -P sepolicy;then
$BINDIR/sepolicy-inject --not -s init -t kernel -c security -p load_policy -P sepolicy
for i in policyloader_app system_server system_app installd init ueventd runas drsd debuggerd vold zygote auditd servicemanager itsonbs commonplatformappdomain;do
$BINDIR/sepolicy-inject --not -s "$i" -t security_spota_file -c dir -p read,write -P sepolicy
$BINDIR/sepolicy-inject --not -s "$i" -t security_spota_file -c file -p read,write -P sepolicy
done
fi
#Create domains if they don't exist
$BINDIR/sepolicy-inject -z su -P sepolicy
$BINDIR/sepolicy-inject -z su_device -P sepolicy
$BINDIR/sepolicy-inject -z su_daemon -P sepolicy
#Autotransition su's socket to su_device
$BINDIR/sepolicy-inject -s su_daemon -f device -c file -t su_device -P sepolicy
$BINDIR/sepolicy-inject -s su_daemon -f device -c dir -t su_device -P sepolicy
allow su_device tmpfs filesystem "associate"
#Transition from untrusted_app to su_client
#TODO: other contexts want access to su?
allowSuClient shell
allowSuClient untrusted_app
allowSuClient platform_app
allowSuClient su
#HTC Debug context requires SU
$BINDIR/sepolicy-inject -e -s ssd_tool -P sepolicy && allowSuClient ssd_tool
#Allow init to execute su daemon/transition
allow init su_daemon process "transition"
noaudit init su_daemon process "rlimitinh siginh noatsecure"
suDaemonRights
suBind
suRights
otherToSU
#Need to set su_device/su as trusted to be accessible from other categories
$BINDIR/sepolicy-inject -a mlstrustedobject -s su_device -P sepolicy
$BINDIR/sepolicy-inject -a mlstrustedsubject -s su_daemon -P sepolicy
$BINDIR/sepolicy-inject -a mlstrustedsubject -s su -P sepolicy
suL9
# Just in case :)
$BINDIR/sepolicy-inject -Z su -P sepolicy

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