mirror of
https://github.com/topjohnwu/Magisk.git
synced 2024-11-24 10:35:26 +00:00
1321f097b8
Mounting ext4 images causes tons of issues, such as unmountable with broken F2FS drivers. Resizing is also very complicated and does not work properly on all devices. Each step in either measuring free space, resizing, and shrinking the image is a point of failure, and either step's failure could cause the module system completely broken. The new method is to directly store modules into /data/adb/modules, and for module installation on boot /data/adb/modules_update. Several compatibility layers has been done: the new path is bind mounted to the old path (/sbin/.magisk/img), and the helper functions in util_functions.sh will now transparently make existing modules install to the new location without any changes. MagiskHide is also updated to unmount module files stored in this new location.
421 lines
11 KiB
Bash
421 lines
11 KiB
Bash
##########################################################################################
|
|
#
|
|
# Magisk General Utility Functions
|
|
# by topjohnwu
|
|
#
|
|
# Used everywhere in Magisk
|
|
#
|
|
##########################################################################################
|
|
|
|
###################
|
|
# Helper Functions
|
|
###################
|
|
|
|
ui_print() {
|
|
$BOOTMODE && echo "$1" || echo -e "ui_print $1\nui_print" >> /proc/self/fd/$OUTFD
|
|
}
|
|
|
|
toupper() {
|
|
echo "$@" | tr '[:lower:]' '[:upper:]'
|
|
}
|
|
|
|
grep_cmdline() {
|
|
local REGEX="s/^$1=//p"
|
|
cat /proc/cmdline | tr '[:space:]' '\n' | sed -n "$REGEX" 2>/dev/null
|
|
}
|
|
|
|
grep_prop() {
|
|
local REGEX="s/^$1=//p"
|
|
shift
|
|
local FILES=$@
|
|
[ -z "$FILES" ] && FILES='/system/build.prop'
|
|
sed -n "$REGEX" $FILES 2>/dev/null | head -n 1
|
|
}
|
|
|
|
getvar() {
|
|
local VARNAME=$1
|
|
local VALUE=
|
|
VALUE=`grep_prop $VARNAME /sbin/.magisk/config /data/.magisk /cache/.magisk`
|
|
[ ! -z $VALUE ] && eval $VARNAME=\$VALUE
|
|
}
|
|
|
|
is_mounted() {
|
|
grep -q " `readlink -f $1` " /proc/mounts 2>/dev/null
|
|
return $?
|
|
}
|
|
|
|
abort() {
|
|
ui_print "$1"
|
|
$BOOTMODE || recovery_cleanup
|
|
exit 1
|
|
}
|
|
|
|
resolve_vars() {
|
|
MAGISKBIN=$NVBASE/magisk
|
|
POSTFSDATAD=$NVBASE/post-fs-data.d
|
|
SERVICED=$NVBASE/service.d
|
|
}
|
|
|
|
######################
|
|
# Environment Related
|
|
######################
|
|
|
|
setup_flashable() {
|
|
$BOOTMODE && return
|
|
# Preserve environment varibles
|
|
OLD_PATH=$PATH
|
|
setup_bb
|
|
if [ -z $OUTFD ] || readlink /proc/$$/fd/$OUTFD | grep -q /tmp; then
|
|
# We will have to manually find out OUTFD
|
|
for FD in `ls /proc/$$/fd`; do
|
|
if readlink /proc/$$/fd/$FD | grep -q pipe; then
|
|
if ps | grep -v grep | grep -q " 3 $FD "; then
|
|
OUTFD=$FD
|
|
break
|
|
fi
|
|
fi
|
|
done
|
|
fi
|
|
}
|
|
|
|
setup_bb() {
|
|
if [ -x $MAGISKTMP/busybox/busybox ]; then
|
|
# Make sure this path is in the front
|
|
echo $PATH | grep -q "^$MAGISKTMP/busybox" || export PATH=$MAGISKTMP/busybox:$PATH
|
|
elif [ -x $TMPDIR/bin/busybox ]; then
|
|
# Make sure this path is in the front
|
|
echo $PATH | grep -q "^$TMPDIR/bin" || export PATH=$TMPDIR/bin:$PATH
|
|
else
|
|
# Construct the PATH
|
|
mkdir -p $TMPDIR/bin
|
|
ln -s $MAGISKBIN/busybox $TMPDIR/bin/busybox
|
|
$MAGISKBIN/busybox --install -s $TMPDIR/bin
|
|
export PATH=$TMPDIR/bin:$PATH
|
|
fi
|
|
}
|
|
|
|
boot_actions() {
|
|
if [ ! -d $MAGISKTMP/mirror/bin ]; then
|
|
mkdir -p $MAGISKTMP/mirror/bin
|
|
mount -o bind $MAGISKBIN $MAGISKTMP/mirror/bin
|
|
fi
|
|
MAGISKBIN=$MAGISKTMP/mirror/bin
|
|
setup_bb
|
|
}
|
|
|
|
recovery_actions() {
|
|
# TWRP bug fix
|
|
mount -o bind /dev/urandom /dev/random
|
|
# Temporarily block out all custom recovery binaries/libs
|
|
mv /sbin /sbin_tmp
|
|
# Unset library paths
|
|
OLD_LD_LIB=$LD_LIBRARY_PATH
|
|
OLD_LD_PRE=$LD_PRELOAD
|
|
unset LD_LIBRARY_PATH
|
|
unset LD_PRELOAD
|
|
}
|
|
|
|
recovery_cleanup() {
|
|
mv /sbin_tmp /sbin 2>/dev/null
|
|
[ -z $OLD_PATH ] || export PATH=$OLD_PATH
|
|
[ -z $OLD_LD_LIB ] || export LD_LIBRARY_PATH=$OLD_LD_LIB
|
|
[ -z $OLD_LD_PRE ] || export LD_PRELOAD=$OLD_LD_PRE
|
|
ui_print "- Unmounting partitions"
|
|
umount -l /system_root 2>/dev/null
|
|
umount -l /system 2>/dev/null
|
|
umount -l /vendor 2>/dev/null
|
|
umount -l /dev/random 2>/dev/null
|
|
}
|
|
|
|
#######################
|
|
# Installation Related
|
|
#######################
|
|
|
|
find_block() {
|
|
for BLOCK in "$@"; do
|
|
DEVICE=`find /dev/block -type l -iname $BLOCK | head -n 1` 2>/dev/null
|
|
if [ ! -z $DEVICE ]; then
|
|
readlink -f $DEVICE
|
|
return 0
|
|
fi
|
|
done
|
|
# Fallback by parsing sysfs uevents
|
|
for uevent in /sys/dev/block/*/uevent; do
|
|
local DEVNAME=`grep_prop DEVNAME $uevent`
|
|
local PARTNAME=`grep_prop PARTNAME $uevent`
|
|
for BLOCK in "$@"; do
|
|
if [ "`toupper $BLOCK`" = "`toupper $PARTNAME`" ]; then
|
|
echo /dev/block/$DEVNAME
|
|
return 0
|
|
fi
|
|
done
|
|
done
|
|
return 1
|
|
}
|
|
|
|
mount_partitions() {
|
|
# Check A/B slot
|
|
SLOT=`grep_cmdline androidboot.slot_suffix`
|
|
if [ -z $SLOT ]; then
|
|
SLOT=_`grep_cmdline androidboot.slot`
|
|
[ $SLOT = "_" ] && SLOT=
|
|
fi
|
|
[ -z $SLOT ] || ui_print "- Current boot slot: $SLOT"
|
|
|
|
ui_print "- Mounting /system, /vendor"
|
|
[ -f /system/build.prop ] || is_mounted /system || mount -o ro /system 2>/dev/null
|
|
if ! is_mounted /system && ! [ -f /system/build.prop ]; then
|
|
SYSTEMBLOCK=`find_block system$SLOT`
|
|
mount -o ro $SYSTEMBLOCK /system
|
|
fi
|
|
[ -f /system/build.prop ] || is_mounted /system || abort "! Cannot mount /system"
|
|
grep -qE '/dev/root|/system_root' /proc/mounts && SYSTEM_ROOT=true || SYSTEM_ROOT=false
|
|
if [ -f /system/init ]; then
|
|
SYSTEM_ROOT=true
|
|
mkdir /system_root 2>/dev/null
|
|
mount --move /system /system_root
|
|
mount -o bind /system_root/system /system
|
|
fi
|
|
if [ -L /system/vendor ]; then
|
|
# Seperate /vendor partition
|
|
is_mounted /vendor || mount -o ro /vendor 2>/dev/null
|
|
if ! is_mounted /vendor; then
|
|
VENDORBLOCK=`find_block vendor$SLOT`
|
|
mount -o ro $VENDORBLOCK /vendor
|
|
fi
|
|
is_mounted /vendor || abort "! Cannot mount /vendor"
|
|
fi
|
|
}
|
|
|
|
get_flags() {
|
|
# override variables
|
|
getvar KEEPVERITY
|
|
getvar KEEPFORCEENCRYPT
|
|
getvar RECOVERYMODE
|
|
if [ -z $KEEPVERITY ]; then
|
|
if $SYSTEM_ROOT; then
|
|
KEEPVERITY=true
|
|
ui_print "- Using system_root_image, keep dm/avb-verity"
|
|
else
|
|
KEEPVERITY=false
|
|
fi
|
|
fi
|
|
if [ -z $KEEPFORCEENCRYPT ]; then
|
|
grep ' /data ' /proc/mounts | grep -q 'dm-' && FDE=true || FDE=false
|
|
[ -d /data/unencrypted ] && FBE=true || FBE=false
|
|
# No data access means unable to decrypt in recovery
|
|
if $FDE || $FBE || ! $DATA; then
|
|
KEEPFORCEENCRYPT=true
|
|
ui_print "- Encrypted data detected, keep forceencrypt"
|
|
else
|
|
KEEPFORCEENCRYPT=false
|
|
fi
|
|
fi
|
|
[ -z $RECOVERYMODE ] && RECOVERYMODE=false
|
|
}
|
|
|
|
find_boot_image() {
|
|
BOOTIMAGE=
|
|
if [ ! -z $SLOT ]; then
|
|
BOOTIMAGE=`find_block ramdisk$SLOT recovery_ramdisk$SLOT boot$SLOT`
|
|
else
|
|
BOOTIMAGE=`find_block ramdisk recovery_ramdisk boot boot_a kern-a android_boot kernel lnx bootimg`
|
|
fi
|
|
if [ -z $BOOTIMAGE ]; then
|
|
# Lets see what fstabs tells me
|
|
BOOTIMAGE=`grep -v '#' /etc/*fstab* | grep -E '/boot[^a-zA-Z]' | grep -oE '/dev/[a-zA-Z0-9_./-]*' | head -n 1`
|
|
fi
|
|
}
|
|
|
|
flash_image() {
|
|
# Make sure all blocks are writable
|
|
$MAGISKBIN/magisk --unlock-blocks 2>/dev/null
|
|
case "$1" in
|
|
*.gz) CMD1="$MAGISKBIN/magiskboot --decompress '$1' - 2>/dev/null";;
|
|
*) CMD1="cat '$1'";;
|
|
esac
|
|
if $BOOTSIGNED; then
|
|
CMD2="$BOOTSIGNER -sign"
|
|
ui_print "- Sign image with test keys"
|
|
else
|
|
CMD2="cat -"
|
|
fi
|
|
if [ -b "$2" ]; then
|
|
local s_size=`stat -c '%s' "$1"`
|
|
local t_size=`blockdev --getsize64 "$2"`
|
|
[ $s_size -gt $t_size ] && return 1
|
|
eval $CMD1 | eval $CMD2 | cat - /dev/zero > "$2" 2>/dev/null
|
|
else
|
|
ui_print "- Not block device, storing image"
|
|
eval $CMD1 | eval $CMD2 > "$2" 2>/dev/null
|
|
fi
|
|
return 0
|
|
}
|
|
|
|
find_dtbo_image() {
|
|
DTBOIMAGE=`find_block dtbo$SLOT`
|
|
}
|
|
|
|
patch_dtbo_image() {
|
|
if [ ! -z $DTBOIMAGE ]; then
|
|
if $MAGISKBIN/magiskboot --dtb-test $DTBOIMAGE; then
|
|
ui_print "- Backing up stock DTBO image"
|
|
$MAGISKBIN/magiskboot --compress $DTBOIMAGE $MAGISKBIN/stock_dtbo.img.gz
|
|
ui_print "- Patching DTBO to remove avb-verity"
|
|
$MAGISKBIN/magiskboot --dtb-patch $DTBOIMAGE
|
|
return 0
|
|
fi
|
|
fi
|
|
return 1
|
|
}
|
|
|
|
sign_chromeos() {
|
|
ui_print "- Signing ChromeOS boot image"
|
|
|
|
echo > empty
|
|
./chromeos/futility vbutil_kernel --pack new-boot.img.signed \
|
|
--keyblock ./chromeos/kernel.keyblock --signprivate ./chromeos/kernel_data_key.vbprivk \
|
|
--version 1 --vmlinuz new-boot.img --config empty --arch arm --bootloader empty --flags 0x1
|
|
|
|
rm -f empty new-boot.img
|
|
mv new-boot.img.signed new-boot.img
|
|
}
|
|
|
|
remove_system_su() {
|
|
if [ -f /system/bin/su -o -f /system/xbin/su ] && [ ! -f /su/bin/su ]; then
|
|
ui_print "- Removing system installed root"
|
|
mount -o rw,remount /system
|
|
# SuperSU
|
|
if [ -e /system/bin/.ext/.su ]; then
|
|
mv -f /system/bin/app_process32_original /system/bin/app_process32 2>/dev/null
|
|
mv -f /system/bin/app_process64_original /system/bin/app_process64 2>/dev/null
|
|
mv -f /system/bin/install-recovery_original.sh /system/bin/install-recovery.sh 2>/dev/null
|
|
cd /system/bin
|
|
if [ -e app_process64 ]; then
|
|
ln -sf app_process64 app_process
|
|
else
|
|
ln -sf app_process32 app_process
|
|
fi
|
|
fi
|
|
rm -rf /system/.pin /system/bin/.ext /system/etc/.installed_su_daemon /system/etc/.has_su_daemon \
|
|
/system/xbin/daemonsu /system/xbin/su /system/xbin/sugote /system/xbin/sugote-mksh /system/xbin/supolicy \
|
|
/system/bin/app_process_init /system/bin/su /cache/su /system/lib/libsupol.so /system/lib64/libsupol.so \
|
|
/system/su.d /system/etc/install-recovery.sh /system/etc/init.d/99SuperSUDaemon /cache/install-recovery.sh \
|
|
/system/.supersu /cache/.supersu /data/.supersu \
|
|
/system/app/Superuser.apk /system/app/SuperSU /cache/Superuser.apk 2>/dev/null
|
|
fi
|
|
}
|
|
|
|
api_level_arch_detect() {
|
|
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
|
|
ARCH32=arm
|
|
IS64BIT=false
|
|
if [ "$ABI" = "x86" ]; then ARCH=x86; ARCH32=x86; fi;
|
|
if [ "$ABI2" = "x86" ]; then ARCH=x86; ARCH32=x86; fi;
|
|
if [ "$ABILONG" = "arm64-v8a" ]; then ARCH=arm64; ARCH32=arm; IS64BIT=true; fi;
|
|
if [ "$ABILONG" = "x86_64" ]; then ARCH=x64; ARCH32=x86; IS64BIT=true; fi;
|
|
}
|
|
|
|
check_data() {
|
|
DATA=false
|
|
DATA_DE=false
|
|
if grep ' /data ' /proc/mounts | grep -vq 'tmpfs'; then
|
|
# Test if data is writable
|
|
touch /data/.rw && rm /data/.rw && DATA=true
|
|
# Test if DE storage is writable
|
|
$DATA && [ -d /data/adb ] && touch /data/adb/.rw && rm /data/adb/.rw && DATA_DE=true
|
|
fi
|
|
$DATA && NVBASE=/data || NVBASE=/cache/data_adb
|
|
$DATA_DE && NVBASE=/data/adb
|
|
resolve_vars
|
|
}
|
|
|
|
find_manager_apk() {
|
|
APK=/data/adb/magisk.apk
|
|
[ -f $APK ] || APK=/data/magisk/magisk.apk
|
|
[ -f $APK ] || APK=/data/app/com.topjohnwu.magisk*/*.apk
|
|
if [ ! -f $APK ]; then
|
|
DBAPK=`magisk --sqlite "SELECT value FROM strings WHERE key='requester'" | cut -d= -f2`
|
|
[ -z "$DBAPK" ] || APK=/data/app/$DBAPK*/*.apk
|
|
fi
|
|
}
|
|
|
|
#################
|
|
# Module Related
|
|
#################
|
|
|
|
set_perm() {
|
|
chown $2:$3 $1 || return 1
|
|
chmod $4 $1 || return 1
|
|
CON=$5
|
|
[ -z $CON ] && CON=u:object_r:system_file:s0
|
|
chcon $CON $1 || return 1
|
|
}
|
|
|
|
set_perm_recursive() {
|
|
find $1 -type d 2>/dev/null | while read dir; do
|
|
set_perm $dir $2 $3 $4 $6
|
|
done
|
|
find $1 -type f -o -type l 2>/dev/null | while read file; do
|
|
set_perm $file $2 $3 $5 $6
|
|
done
|
|
}
|
|
|
|
mktouch() {
|
|
mkdir -p ${1%/*} 2>/dev/null
|
|
[ -z $2 ] && touch $1 || echo $2 > $1
|
|
chmod 644 $1
|
|
}
|
|
|
|
request_size_check() {
|
|
reqSizeM=`du -ms "$1" | cut -f1`
|
|
}
|
|
|
|
request_zip_size_check() {
|
|
reqSizeM=`unzip -l "$1" | tail -n 1 | awk '{ print int(($1 - 1) / 1048576 + 1) }'`
|
|
}
|
|
|
|
##################################
|
|
# Backwards Compatibile Functions
|
|
##################################
|
|
|
|
get_outfd() { setup_flashable; }
|
|
|
|
mount_magisk_img() {
|
|
$BOOTMODE && MODULE_BASE=modules_update || MODULE_BASE=modules
|
|
MODULEPATH=$NVBASE/$MODULE_BASE
|
|
mkdir -p $MODULEPATH 2>/dev/null
|
|
ln -s $MODULEPATH $MOUNTPATH
|
|
}
|
|
|
|
unmount_magisk_img() {
|
|
rm -f $MODULEPATH 2>/dev/null
|
|
}
|
|
|
|
#######
|
|
# main
|
|
#######
|
|
|
|
#MAGISK_VERSION_STUB
|
|
|
|
# Detect whether in boot mode
|
|
[ -z $BOOTMODE ] && BOOTMODE=false
|
|
$BOOTMODE || ps | grep zygote | grep -qv grep && BOOTMODE=true
|
|
$BOOTMODE || ps -A | grep zygote | grep -qv grep && BOOTMODE=true
|
|
|
|
# Presets
|
|
MAGISKTMP=/sbin/.magisk
|
|
NVBASE=/data/adb
|
|
|
|
# Bootsigner related stuff
|
|
BOOTSIGNERCLASS=a.a
|
|
BOOTSIGNER="/system/bin/dalvikvm -Xnodex2oat -Xnoimage-dex2oat -cp \$APK \$BOOTSIGNERCLASS"
|
|
BOOTSIGNED=false
|
|
|
|
resolve_vars
|