commit 9b8e15654bcc31ec3521a13f96b1ebba8a316123
Author: Vitaliy Filippov <vitalif@yourcmc.ru>
Date:   Mon Mar 6 00:00:45 2023 +0300

    Patched multidisabler for Galaxy A73 - initial commit

diff --git a/multidisabler b/multidisabler
new file mode 100755
index 0000000..866f5fc
--- /dev/null
+++ b/multidisabler
@@ -0,0 +1,254 @@
+#!/system/bin/sh
+#
+# A simple Samsung services disabler by Ian Macdonald.
+# Enhanced by afaneh92 for Galaxy S22 - https://github.com/mohammad92/android_device_samsung_g0s
+# Then enhanced by vitalif for Galaxy A73 - https://yourcmc.ru/git/vitalif/multidisabler-a73 :-)
+# With F2FS and "SUPER" partition support.
+#
+# Use this _JUST_ after installing TWRP to prime your device!
+#
+# What does it do:
+# - Makes /vendor and /system read-write
+# - Disables file-based encryption on /data
+# - Disables full-disk encryption on /data
+# - Disables stock recovery restoration
+#
+
+set -e
+
+md5() {
+  md5sum -b "$1"
+}
+
+file_changed() {
+  local file="$1"
+  local old_md5="$2"
+  local new_md5=$( md5 "$file" )
+
+  if [ $new_md5 != $old_md5 ]; then
+    echo " -     ...modified."
+  else
+    echo " -     ...unchanged."
+  fi
+}
+
+resize_fs() {
+  local path=$1
+  local label=$2
+  local partname=$3
+  local percent=$4
+  local dm_block_ext4=$(df -t ext4 | grep "$path"'$' | cut -DF1)
+  local dm_block_f2fs=$(df -t f2fs | grep "$path"'$' | cut -DF1)
+
+  if [ "$dm_block_ext4" ]; then
+    echo " - Unmounting $path..."
+    umount $path
+    echo " - Checking $path block partition before resizing..."
+    e2fsck -f $dm_block_ext4
+    echo " - Resizing the filesystem on $dm_block_ext4..."
+    resize2fs $dm_block_ext4
+    echo " - Make the $path partition R/W by unsharing its blocks..."
+    e2fsck -E unshare_blocks $dm_block_ext4
+  elif [ "$dm_block_f2fs" ]; then
+    fs_size_mb=$(du -sm $path | cut -f1)
+    super_free_mb=`lptools free | grep Free | awk '{print int($3 / 1048576)}'`
+    new_fs_size_mb=`echo $fs_size_mb $super_free_mb $percent | awk '{print int($1 + $2 * $3 / 100)}'`
+    uuid=$(toybox blkid $dm_block_f2fs | egrep '[0-9a-f]{8}-([0-9a-f]{4}-){3}[0-9a-f]{12}' -o)
+    echo " - Create R/W $partname image..."
+    truncate -s ${new_fs_size_mb}M /data/new-rw.img
+    make_f2fs -g android -O project_quota,extra_attr,inode_checksum,sb_checksum,compression,flexible_inline_xattr,verity,inode_crtime -U $uuid -f -l $label /data/new-rw.img
+    mkdir -p /data/new-rw
+    mount /data/new-rw.img /data/new-rw
+    echo " - Copy old R/O $partname files to our new created image..."
+    cp -a --preserve=all $path/* /data/new-rw
+    umount $path
+    umount /data/new-rw
+    echo " - Checking $partname image before flashing..."
+    fsck.f2fs -f /data/new-rw.img
+    echo " - Resizing partition $partname inside 'super' to $new_fs_size_mb MB using lptools"
+    lptools resize $partname $(stat -c '%s' /data/new-rw.img)
+    lptools unmap $partname
+    lptools map $partname
+    echo " - Writing our new R/W $partname image, please wait..."
+    dd if=/data/new-rw.img of=/dev/block/bootdevice/by-name/$partname bs=1M
+    rm -rf /data/new-rw*
+  fi
+  echo " - Remounting $path..."
+  mount $path
+  mount -o remount,rw $path
+}
+
+fs_free_size_check() {
+  local path=$1
+  local label=$2
+  local partname=$3
+  local percent=$4
+  echo " - Checking $path free space..."
+  if dd if=/dev/zero of=$path/test bs=1 count=1 2>/dev/null; then
+    echo " -     ...succeeded."
+    rm -f $path/test
+  else
+    echo " -     ...No free space on $path, attempting to resize it..."
+    echo " "
+    rm -f $path/test
+    resize_fs "$path" "$label" "$partname" "$percent"
+  fi
+}
+
+disable_fbe() {
+  local md5
+  local i
+  fstab_files=`grep -lr 'fileencryption' vendor/etc`
+
+  #
+  # Exynos devices = fstab.exynos*.
+  # MediaTek devices = fstab.mt*.
+  # Snapdragon devices = fstab.qcom, fstab.emmc, fstab.default
+  #
+  for i in $fstab_files; do
+    if [ -f $i ]; then
+      echo " - Disabling file-based encryption (FBE) for /data..."
+      echo " -   Found $i."
+      md5=$( md5 $i )
+      # This comments out the offending line and adds an edited one.
+      sed -i -e 's/^\([^#].*\)fileencryption=[^,]*\(.*\)$/# &\n\1encryptable\2/g' $i
+      file_changed $i $md5
+    fi
+  done
+}
+
+disable_fde() {
+  local md5
+  local i
+  fstab_files=`grep -lr 'forceencrypt' vendor/etc`
+
+  #
+  # Exynos devices = fstab.exynos*.
+  # MediaTek devices = fstab.mt*.
+  # Snapdragon devices = fstab.qcom, fstab.emmc, fstab.default
+  #
+  for i in $fstab_files; do
+    if [ -f $i ]; then
+      echo " - Disabling full-disk encryption (FDE) for /data..."
+      echo " -   Found $i."
+      md5=$( md5 $i )
+      # This comments out the offending line and adds an edited one.
+      sed -i -e 's/^\([^#].*\)forceencrypt=[^,]*\(.*\)$/# &\n\1encryptable\2/g' $i
+      file_changed $i $md5
+    fi
+  done
+}
+
+disable_recovery_restoration() {
+  local r=recovery-from-boot.p
+  local found
+  local i
+
+  echo " - Disabling restoration of stock recovery..."
+
+  for i in $ANDROID_ROOT $ANDROID_ROOT/system /vendor; do
+    if [ -f $i/$r~ ]; then
+      echo " -   ...already disabled."
+      found=true
+      break
+    fi
+
+    if [ -f $i/$r ]; then
+      echo " -   Found $i/$r. Disabling..."
+      mv $i/$r $i/$r~
+
+      if [ -f $i/$r~ ]; then
+        echo " -     ...succeeded."
+      else
+        echo " -     ...failed."
+      fi
+
+      found=true
+      break
+    fi
+
+  done
+
+  [ -z "$found" ] && echo " -   Found no stock recovery. Pfft."
+}
+
+echo " "
+echo "Multi-disabler for Samsung devices"
+echo "running Android 9 or later."
+echo "by Ian Macdonald, enhanced by afaneh92"
+echo "patched for Galaxy A73 by vitalif"
+echo " "
+
+os=$(getprop ro.build.version.release)
+major=${os%%.*}
+bl=$(getprop ro.boot.bootloader)
+dp=$(getprop ro.boot.dynamic_partitions)
+
+# Firmware version starts at either 8th or 9th character, depending on length
+# of bootloader string (12 or 13).
+#
+fw=${bl:$((${#bl} - 4)):4}
+
+# Device is first 5 characters of bootloader string.
+#
+device=${bl:0:$((${#bl} - 8))}
+mft=$(getprop ro.product.manufacturer | tr '[A-Z]' '[a-z]')
+
+if [ "$mft" != samsung ]; then
+  echo " - Device appears not to be made by Samsung."
+  fatal=true
+elif [ -z "$device" ]; then
+  echo " - Could not determine device model."
+  fatal=true
+elif [ $major -lt 9 ]; then
+  echo " - This software is incompatible with Android $major."
+  fatal=true
+fi
+if [ -n "$fatal" ]; then
+  echo " - Installation aborted."
+  echo " "
+  exit 1
+fi
+
+echo " - Detected a $device device with a $fw bootloader."
+echo " - The environment appears to be Android $major."
+echo " "
+
+echo " - Mounting $ANDROID_ROOT..."
+if ! mount | grep "$ANDROID_ROOT " >/dev/null; then
+  mount -o rw $ANDROID_ROOT 2>/dev/null || true
+  if ! mount | grep "$ANDROID_ROOT " >/dev/null; then
+    ANDROID_ROOT=/system_root
+    echo " -   Attempt failed. Mounting at $ANDROID_ROOT..."
+    if ! mount | grep "$ANDROID_ROOT " >/dev/null; then
+      mount -o rw $ANDROID_ROOT
+      if ! mount | grep "$ANDROID_ROOT " >/dev/null; then
+        echo " -   Even that attempt failed. Aborting..."
+        exit 2
+      fi
+    fi
+  fi
+fi
+
+echo " - Mounting /vendor..."
+mount /vendor || true
+mount -o remount,rw /vendor || true
+if ! mount | grep '/vendor ' >/dev/null; then
+  echo " -   Mount failed. Aborting..."
+  exit 3
+fi
+
+fs_free_size_check $ANDROID_ROOT "/" system 70
+fs_free_size_check /vendor vendor vendor 50
+disable_fbe
+disable_fde
+disable_recovery_restoration
+
+echo " - Unmounting /vendor..."
+umount /vendor
+echo " - Unmounting $ANDROID_ROOT..."
+umount $ANDROID_ROOT
+
+echo " "
+echo " - Finished."
+echo " "