First commit

build.gradle

@@ -0,0 +1,69 @@
+plugins {
+    id "de.undercouch.download" version "5.6.0"
+    alias(libs.plugins.androidApplication)
+}
+
+android {
+    namespace 'com.alterdekim.fridaapp'
+    compileSdk 34
+
+    defaultConfig {
+        applicationId "com.alterdekim.fridaapp"
+        minSdk 21
+        targetSdk 34
+        versionCode 1
+        versionName "1.0"
+
+        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
+        }
+    }
+    compileOptions {
+        sourceCompatibility JavaVersion.VERSION_1_8
+        targetCompatibility JavaVersion.VERSION_1_8
+    }
+
+    packagingOptions.doNotStrip "**/*.so"
+}
+
+tasks.withType(JavaCompile) {
+    compileTask ->
+        {
+            compileTask.dependsOn(downloadAarch)
+            compileTask.dependsOn(downloadArmeabi)
+            compileTask.dependsOn(downloadx86)
+        }
+}
+
+task downloadAarch(type: Download) {
+    src 'https://jenkins.awain.net/job/Frida-android-binaries/lastSuccessfulBuild/artifact/jniLibs/arm64-v8a/frida.so'
+    dest layout.projectDirectory.file('jniLibs/arm64-v8a/frida.so')
+}
+
+task downloadArmeabi(type: Download) {
+    src 'https://jenkins.awain.net/job/Frida-android-binaries/lastSuccessfulBuild/artifact/jniLibs/armeabi-v7a/frida.so'
+    dest layout.projectDirectory.file('jniLibs/armeabi-v7a/frida.so')
+}
+
+task downloadx86(type: Download) {
+    src 'https://jenkins.awain.net/job/Frida-android-binaries/lastSuccessfulBuild/artifact/jniLibs/x86/frida.so'
+    dest layout.projectDirectory.file('jniLibs/x86/frida.so')
+}
+
+dependencies {
+    implementation libs.okhttp
+    implementation libs.ground.crockford32
+    implementation libs.ktsh
+    implementation libs.appcompat
+    implementation libs.material
+    implementation libs.activity
+    implementation libs.constraintlayout
+    testImplementation libs.junit
+    androidTestImplementation libs.ext.junit
+    androidTestImplementation libs.espresso.core
+}

proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

src/main/AndroidManifest.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"> <!--  android:installLocation="internalOnly" -->
+
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE"/>
+    <uses-permission android:name="android.permission.FOREGROUND_SERVICE_SPECIAL_USE"/>
+    <uses-permission android:name="android.permission.INTERNET"/>
+
+
+    <application
+        android:extractNativeLibs="true"
+        android:allowBackup="false"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.FridaApp"
+        tools:targetApi="34"
+        tools:replace="android:allowBackup">
+        <activity
+            android:name=".MainActivity"
+            android:exported="true">
+            <intent-filter>
+                <action android:name="android.intent.action.MAIN" />
+
+                <category android:name="android.intent.category.LAUNCHER" />
+            </intent-filter>
+        </activity>
+
+        <service
+            android:name="com.alterdekim.fridaapp.service.FridaService"
+            android:exported="false"
+            android:permission="android.permission.BIND_VPN_SERVICE"
+            android:foregroundServiceType="specialUse">
+            <property android:name="android.app.PROPERTY_SPECIAL_USE_FGS_SUBTYPE" android:value="vpn" />
+            <intent-filter>
+                <action android:name="android.net.VpnService" />
+            </intent-filter>
+        </service>
+    </application>
+
+</manifest>

src/main/java/com/alterdekim/fridaapp/MainActivity.java

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+package com.alterdekim.fridaapp;
+
+import android.content.Intent;
+import android.net.VpnService;
+import android.os.Bundle;
+import android.view.View;
+
+import androidx.activity.EdgeToEdge;
+import androidx.activity.result.ActivityResultLauncher;
+import androidx.activity.result.contract.ActivityResultContracts;
+import androidx.appcompat.app.AppCompatActivity;
+import androidx.core.graphics.Insets;
+import androidx.core.view.ViewCompat;
+import androidx.core.view.WindowInsetsCompat;
+
+import com.alterdekim.fridaapp.service.FridaService;
+
+public class MainActivity extends AppCompatActivity {
+    private static final String TAG = MainActivity.class.getSimpleName();
+
+    private final ActivityResultLauncher<Intent> launcher = registerForActivityResult(
+            new ActivityResultContracts.StartActivityForResult(),
+            result -> {
+                if (result.getResultCode() == RESULT_OK) {
+                    startService(new Intent(this, FridaService.class));
+                }
+            }
+    );
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        EdgeToEdge.enable(this);
+        setContentView(R.layout.activity_main);
+        ViewCompat.setOnApplyWindowInsetsListener(findViewById(R.id.main), (v, insets) -> {
+            Insets systemBars = insets.getInsets(WindowInsetsCompat.Type.systemBars());
+            v.setPadding(systemBars.left, systemBars.top, systemBars.right, systemBars.bottom);
+            return insets;
+        });
+
+        findViewById(R.id.start_btn).setOnClickListener(view -> startVpn());
+    }
+
+    private void startVpn() {
+        Intent intent = VpnService.prepare(MainActivity.this);
+        if (intent != null) {
+            launcher.launch(intent);
+        } else {
+            onActivityResult(0, RESULT_OK, null);
+        }
+    }
+}

src/main/java/com/alterdekim/fridaapp/service/FridaService.java

@@ -0,0 +1,82 @@
+package com.alterdekim.fridaapp.service;
+
+import android.app.PendingIntent;
+import android.content.Intent;
+import android.net.VpnService;
+import android.os.ParcelFileDescriptor;
+import android.util.Log;
+
+import com.alterdekim.fridaapp.R;
+
+import java.io.IOException;
+import java.util.Objects;
+
+import okhttp3.OkHttpClient;
+import okhttp3.Request;
+import okhttp3.Response;
+
+public class FridaService extends VpnService {
+    private static final String TAG = FridaService.class.getSimpleName();
+    private static final String VPN_ADDRESS = "10.66.66.6"; // Only IPv4 support for now
+    private static final String VPN_ROUTE = "0.0.0.0"; // Intercept everything
+
+    private ParcelFileDescriptor vpnInterface = null;
+    private PendingIntent pendingIntent;
+
+
+    @Override
+    public void onCreate() {
+        setupVPN();
+        Log.i(TAG, "Started");
+
+        Thread t = new Thread(new NativeBinaryConnection(vpnInterface.detachFd(), getApplicationContext().getApplicationInfo().nativeLibraryDir));
+        t.start();
+
+        new Thread(new Runnable() {
+            @Override
+            public void run() {
+                OkHttpClient client = new OkHttpClient();
+
+
+                Request request = new Request.Builder()
+                        .url("https://google.com")
+                        .build();
+                try {
+                    try (Response response = client.newCall(request).execute()) {
+                        Log.i(TAG, "Response code: " + response.code());
+                        if (response.body() != null) {
+                            Log.i(TAG, "Response body: " + response.body().string());
+                        } else {
+                            Log.i(TAG, "Response body: null");
+                        }
+                    }
+                } catch (IOException e) {
+                    Log.e(TAG, Objects.requireNonNull(e.getMessage()));
+                }
+            }
+        }).start();
+    }
+
+    private void setupVPN() {
+        try {
+            //if (vpnInterface == null) {
+                Builder builder = new Builder();
+                builder.addAddress(VPN_ADDRESS, 32);
+                builder.addRoute(VPN_ROUTE, 0);
+                //builder.addDnsServer("1.1.1.1");
+                //builder.setMtu(1400);
+                //builder.addAllowedApplication();
+                //builder.addDisallowedApplication();
+
+                vpnInterface = builder.setSession(getString(R.string.app_name)).setConfigureIntent(pendingIntent).establish();
+           // }
+        } catch (Exception e) {
+            Log.e(TAG, "error", e);
+        }
+    }
+
+    @Override
+    public int onStartCommand(Intent intent, int flags, int startId) {
+        return START_STICKY;
+    }
+}

src/main/java/com/alterdekim/fridaapp/service/NativeBinaryConnection.java

@@ -0,0 +1,47 @@
+package com.alterdekim.fridaapp.service;
+
+import android.util.Log;
+
+import com.jaredrummler.ktsh.Shell;
+
+import java.io.BufferedReader;
+import java.io.File;
+import java.io.InputStreamReader;
+
+public class NativeBinaryConnection implements Runnable {
+    private static final String TAG = NativeBinaryConnection.class.getSimpleName();
+
+    private int fd = 0;
+    private String baseDir;
+
+    public NativeBinaryConnection(int fd, String baseDir) {
+        this.fd = fd;
+        this.baseDir = baseDir;
+    }
+
+    @Override
+    public void run() {
+        try {
+            Log.i(TAG, "FD: " + this.fd);
+           /* Shell shell = new Shell("sh");
+            Shell.Command.Result result = shell.run(command);
+            Log.i(TAG, result.stdout());
+            Log.i(TAG, result.stderr());*/
+            ProcessBuilder p = new ProcessBuilder("./frida.so", "--fd", fd+"", "--config", "MNWGSZLOOQ5A2CRAEBYHE2LWMF2GKX3LMV4TUIDPMIYTKOBRNFVTMNZSGNTU6ZTKJ4XXS3DIO44WIVZLNRLTE2LCI5ZXISDVIJKVG42MK5MT2DIKEAQHA5LCNRUWGX3LMV4TUIDEMRBWGSSYIFIVS4SRHFWVIRTJOB2HOK3OK5WXOUJXG5IESSSQOAYEU3SLJ5GU6NCLIMYD2DIKEAQGCZDEOJSXG4Z2EAYTALRWGYXDMNROGYGQU43FOJ3GK4R2BUFCAIDQOVRGY2LDL5VWK6J2EBCUUTSROIZVUNKKJBWC65CDLFNC6UDDJZGGWTLTKMYGCS3OMZVGINCKMJ3DMVDVHE3EKTJ5BUFCAIDFNZSHA33JNZ2DUIBRGU4S4MJQGAXDCOBOHA4DUOBXHEZQ2CRAEBVWKZLQMFWGS5TFHIQDEMANBI======").directory(new File(baseDir));
+            p.redirectErrorStream(true);
+
+            Process pr = p.start();
+
+            BufferedReader in = new BufferedReader(new InputStreamReader(pr.getInputStream()));
+            String line;
+            while ((line = in.readLine()) != null) {
+                Log.i(TAG, line);
+            }
+            pr.waitFor();
+            Log.i(TAG, "ok!");
+            in.close();
+        } catch (Exception e) {
+            Log.e(TAG, e.getMessage());
+        }
+    }
+}

src/main/res/drawable-v24/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

src/main/res/layout/activity_main.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:id="@+id/main"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    tools:context=".MainActivity">
+
+    <Button
+        android:id="@+id/start_btn"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:text="Start VPN"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintEnd_toEndOf="parent"
+        app:layout_constraintStart_toStartOf="parent"
+        app:layout_constraintTop_toTopOf="parent" />
+</androidx.constraintlayout.widget.ConstraintLayout>

src/main/res/mipmap-anydpi-v26/ic_launcher.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

src/main/res/mipmap-anydpi-v26/ic_launcher_round.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

src/main/res/values-night/themes.xml

@@ -0,0 +1,7 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.FridaApp" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your dark theme here. -->
+        <!-- <item name="colorPrimary">@color/my_dark_primary</item> -->
+    </style>
+</resources>

src/main/res/values/colors.xml

@@ -0,0 +1,5 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+</resources>

src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">Frida</string>
+</resources>

src/main/res/values/themes.xml

@@ -0,0 +1,9 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Base.Theme.FridaApp" parent="Theme.Material3.DayNight.NoActionBar">
+        <!-- Customize your light theme here. -->
+        <!-- <item name="colorPrimary">@color/my_light_primary</item> -->
+    </style>
+
+    <style name="Theme.FridaApp" parent="Base.Theme.FridaApp" />
+</resources>

src/main/res/xml/backup_rules.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>

src/main/res/xml/data_extraction_rules.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>