Add VPN app scanner

app/src/main/AndroidManifest.xml

@@ -111,6 +111,12 @@
         <activity
             android:name="io.nekohasekai.sfa.ui.profileoverride.PerAppProxyActivity"
             android:exported="false" />
+        <activity
+            android:name="io.nekohasekai.sfa.ui.debug.DebugActivity"
+            android:exported="false" />
+        <activity
+            android:name="io.nekohasekai.sfa.ui.debug.VPNScanActivity"
+            android:exported="false" />
 
         <service
             android:name=".bg.TileService"

app/src/main/java/io/nekohasekai/sfa/ktx/Wrappers.kt

@@ -2,6 +2,20 @@ package io.nekohasekai.sfa.ktx
 
 import io.nekohasekai.libbox.StringIterator
 
+fun Iterable<String>.toStringIterator(): StringIterator {
+    return object : StringIterator {
+        val iterator = iterator()
+
+        override fun hasNext(): Boolean {
+            return iterator.hasNext()
+        }
+
+        override fun next(): String {
+            return iterator.next()
+        }
+    }
+}
+
 fun StringIterator.toList(): List<String> {
     return mutableListOf<String>().apply {
         while (hasNext()) {

app/src/main/java/io/nekohasekai/sfa/ui/debug/DebugActivity.kt

@@ -0,0 +1,26 @@
+package io.nekohasekai.sfa.ui.debug
+
+import android.content.Intent
+import android.os.Bundle
+import io.nekohasekai.sfa.R
+import io.nekohasekai.sfa.databinding.ActivityDebugBinding
+import io.nekohasekai.sfa.ui.shared.AbstractActivity
+
+class DebugActivity : AbstractActivity() {
+
+    private var binding: ActivityDebugBinding? = null
+
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setTitle(R.string.title_debug)
+        val binding = ActivityDebugBinding.inflate(layoutInflater)
+        this.binding = binding
+        setContentView(binding.root)
+        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+
+        binding.scanVPNButton.setOnClickListener {
+            startActivity(Intent(this, VPNScanActivity::class.java))
+        }
+    }
+}

app/src/main/java/io/nekohasekai/sfa/ui/debug/VPNScanActivity.kt

@@ -0,0 +1,256 @@
+package io.nekohasekai.sfa.ui.debug
+
+import android.Manifest
+import android.content.pm.PackageInfo
+import android.content.pm.PackageManager
+import android.os.Build
+import android.os.Bundle
+import android.util.Log
+import android.view.ViewGroup
+import androidx.core.view.isVisible
+import androidx.lifecycle.lifecycleScope
+import androidx.recyclerview.widget.LinearLayoutManager
+import androidx.recyclerview.widget.RecyclerView
+import io.nekohasekai.libbox.Libbox
+import io.nekohasekai.sfa.R
+import io.nekohasekai.sfa.databinding.ActivityVpnScanBinding
+import io.nekohasekai.sfa.databinding.ViewVpnAppItemBinding
+import io.nekohasekai.sfa.ktx.toStringIterator
+import io.nekohasekai.sfa.ui.shared.AbstractActivity
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
+import org.jf.dexlib2.dexbacked.DexBackedDexFile
+import java.io.File
+import java.util.zip.ZipFile
+import kotlin.math.roundToInt
+
+class VPNScanActivity : AbstractActivity() {
+
+    private var binding: ActivityVpnScanBinding? = null
+    private var adapter: Adapter? = null
+    private val appInfoList = mutableListOf<AppInfo>()
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+
+        setTitle(R.string.title_scan_vpn)
+        val binding = ActivityVpnScanBinding.inflate(layoutInflater)
+        this.binding = binding
+        setContentView(binding.root)
+        supportActionBar?.setDisplayHomeAsUpEnabled(true)
+        binding.scanVPNResult.adapter = Adapter().also {
+            adapter = it
+        }
+        binding.scanVPNResult.layoutManager = LinearLayoutManager(this)
+        lifecycleScope.launch(Dispatchers.IO) {
+            scanVPN()
+        }
+    }
+
+    class VPNType(
+        val appType: String?,
+        val coreType: VPNCoreType?,
+    )
+
+    class VPNCoreType(
+        val coreType: String,
+        val corePath: String,
+        val goVersion: String
+    )
+
+    class AppInfo(
+        val packageInfo: PackageInfo,
+        val vpnType: VPNType,
+    )
+
+    inner class Adapter : RecyclerView.Adapter<Holder>() {
+        override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): Holder {
+            return Holder(ViewVpnAppItemBinding.inflate(layoutInflater, parent, false))
+        }
+
+        override fun getItemCount(): Int {
+            return appInfoList.size
+        }
+
+        override fun onBindViewHolder(holder: Holder, position: Int) {
+            holder.bind(appInfoList[position])
+        }
+    }
+
+    class Holder(
+        private val binding: ViewVpnAppItemBinding
+    ) :
+        RecyclerView.ViewHolder(binding.root) {
+
+        fun bind(element: AppInfo) {
+            binding.appIcon.setImageDrawable(element.packageInfo.applicationInfo.loadIcon(binding.root.context.packageManager))
+            binding.appName.text =
+                element.packageInfo.applicationInfo.loadLabel(binding.root.context.packageManager)
+            binding.packageName.text = element.packageInfo.packageName
+            val appType = element.vpnType.appType
+            if (appType != null) {
+                binding.appTypeText.text = element.vpnType.appType
+            } else {
+                binding.appTypeText.setText(R.string.vpn_app_type_other)
+            }
+            val coreType = element.vpnType.coreType?.coreType
+            if (coreType != null) {
+                binding.coreTypeText.text = element.vpnType.coreType.coreType
+            } else {
+                binding.coreTypeText.setText(R.string.vpn_core_type_unknown)
+            }
+            val corePath = element.vpnType.coreType?.corePath.takeIf { !it.isNullOrBlank() }
+            if (corePath != null) {
+                binding.corePathLayout.isVisible = true
+                binding.corePathText.text = corePath
+            } else {
+                binding.corePathLayout.isVisible = false
+            }
+
+            val goVersion = element.vpnType.coreType?.goVersion.takeIf { !it.isNullOrBlank() }
+            if (goVersion != null) {
+                binding.goVersionLayout.isVisible = true
+                binding.goVersionText.text = goVersion
+            } else {
+                binding.goVersionLayout.isVisible = false
+            }
+        }
+    }
+
+    private suspend fun scanVPN() {
+        val adapter = adapter ?: return
+        val binding = binding ?: return
+        val flag =
+            PackageManager.GET_SERVICES or if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
+                PackageManager.MATCH_UNINSTALLED_PACKAGES
+            } else {
+                @Suppress("DEPRECATION")
+                PackageManager.GET_UNINSTALLED_PACKAGES
+            }
+        val installedPackages = if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.TIRAMISU) {
+            packageManager.getInstalledPackages(PackageManager.PackageInfoFlags.of(flag.toLong()))
+        } else {
+            @Suppress("DEPRECATION")
+            packageManager.getInstalledPackages(flag)
+        }
+        val vpnAppList =
+            installedPackages.filter {
+                it.services?.any { it.permission == Manifest.permission.BIND_VPN_SERVICE } ?: false
+            }
+        for ((index, packageInfo) in vpnAppList.withIndex()) {
+            val appType = runCatching { getVPNAppType(packageInfo) }.getOrNull()
+            val coreType = runCatching { getVPNCoreType(packageInfo) }.getOrNull()
+            appInfoList.add(AppInfo(packageInfo, VPNType(appType, coreType)))
+            withContext(Dispatchers.Main) {
+                adapter.notifyItemInserted(index)
+                binding.scanVPNResult.scrollToPosition(index)
+                binding.scanVPNProgress.setProgressCompat(
+                    (((index + 1).toFloat() / vpnAppList.size.toFloat()) * 100).roundToInt(),
+                    true
+                )
+            }
+            System.gc()
+        }
+        withContext(Dispatchers.Main) {
+            binding.scanVPNProgress.isVisible = false
+        }
+    }
+
+    companion object {
+
+        private val v2rayNGClasses = listOf(
+            "com.v2ray.ang",
+            ".dto.V2rayConfig",
+            ".service.V2RayVpnService",
+        )
+
+        private val clashForAndroidClasses = listOf(
+            "com.github.kr328.clash",
+            ".core.Clash",
+            ".service.TunService",
+        )
+
+        private val sfaClasses = listOf(
+            "io.nekohasekai.sfa"
+        )
+
+        private val legacySagerNetClasses = listOf(
+            "io.nekohasekai.sagernet",
+            ".fmt.ConfigBuilder"
+        )
+
+        private val shadowsocksAndroidClasses = listOf(
+            "com.github.shadowsocks",
+            ".bg.VpnService",
+            "GuardedProcessPool"
+        )
+    }
+
+    private fun getVPNAppType(packageInfo: PackageInfo): String? {
+        ZipFile(File(packageInfo.applicationInfo.publicSourceDir)).use { packageFile ->
+            for (packageEntry in packageFile.entries()) {
+                if (!(packageEntry.name.startsWith("classes") && packageEntry.name.endsWith(
+                        ".dex"
+                    ))
+                ) {
+                    continue
+                }
+                if (packageEntry.size > 15000000) {
+                    continue
+                }
+                val input = packageFile.getInputStream(packageEntry).buffered()
+                val dexFile = try {
+                    DexBackedDexFile.fromInputStream(null, input)
+                } catch (e: Exception) {
+                    Log.e("VPNScanActivity", "Failed to read dex file", e)
+                    continue
+                }
+                for (clazz in dexFile.classes) {
+                    val clazzName = clazz.type.substring(1, clazz.type.length - 1)
+                        .replace("/", ".")
+                        .replace("$", ".")
+                    for (v2rayNGClass in v2rayNGClasses) {
+                        if (clazzName.contains(v2rayNGClass)) {
+                            return "V2RayNG"
+                        }
+                    }
+                    for (clashForAndroidClass in clashForAndroidClasses) {
+                        if (clazzName.contains(clashForAndroidClass)) {
+                            return "ClashForAndroid"
+                        }
+                    }
+                    for (sfaClass in sfaClasses) {
+                        if (clazzName.contains(sfaClass)) {
+                            return "sing-box"
+                        }
+                    }
+                    for (legacySagerNetClass in legacySagerNetClasses) {
+                        if (clazzName.contains(legacySagerNetClass)) {
+                            return "LegacySagerNet"
+                        }
+                    }
+                    for (shadowsocksAndroidClass in shadowsocksAndroidClasses) {
+                        if (clazzName.contains(shadowsocksAndroidClass)) {
+                            return "shadowsocks-android"
+                        }
+                    }
+                }
+            }
+            return null
+        }
+    }
+
+    private fun getVPNCoreType(packageInfo: PackageInfo): VPNCoreType? {
+        val packageFiles = mutableListOf(packageInfo.applicationInfo.publicSourceDir)
+        packageInfo.applicationInfo.splitPublicSourceDirs?.also {
+            packageFiles.addAll(it)
+        }
+        val vpnType = try {
+            Libbox.readAndroidVPNType(packageFiles.toStringIterator())
+        } catch (ignored: Exception) {
+            return null
+        }
+        return VPNCoreType(vpnType.coreType, vpnType.corePath, vpnType.goVersion)
+    }
+
+}

app/src/main/java/io/nekohasekai/sfa/ui/main/SettingsFragment.kt

@@ -24,6 +24,7 @@ import io.nekohasekai.sfa.ktx.launchCustomTab
 import io.nekohasekai.sfa.ktx.setSimpleItems
 import io.nekohasekai.sfa.ktx.text
 import io.nekohasekai.sfa.ui.MainActivity
+import io.nekohasekai.sfa.ui.debug.DebugActivity
 import io.nekohasekai.sfa.ui.profileoverride.ProfileOverrideActivity
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.launch
@@ -112,6 +113,9 @@ class SettingsFragment : Fragment() {
         binding.documentationButton.setOnClickListener {
             it.context.launchCustomTab("http://sing-box.sagernet.org/installation/clients/sfa/")
         }
+        binding.openDebugButton.setOnClickListener {
+            startActivity(Intent(requireContext(), DebugActivity::class.java))
+        }
         lifecycleScope.launch(Dispatchers.IO) {
             reloadSettings()
         }

app/src/main/res/layout/activity_debug.xml

@@ -0,0 +1,66 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:clipChildren="false"
+        android:clipToPadding="false"
+        android:orientation="vertical"
+        android:padding="16dp">
+
+
+        <com.google.android.material.card.MaterialCardView
+            style="?attr/materialCardViewElevatedStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:paddingStart="16dp"
+                android:paddingTop="16dp"
+                android:paddingEnd="16dp"
+                android:paddingBottom="8dp">
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/title_scan_vpn"
+                    android:textAppearance="?attr/textAppearanceTitleLarge">
+
+                </TextView>
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="8dp"
+                    android:text="@string/message_scan_vpn" />
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="center_vertical|end"
+                    android:orientation="horizontal">
+
+                    <Button
+                        android:id="@+id/scanVPNButton"
+                        style="@style/Widget.Material3.Button.TextButton"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@string/action_scan_vpn" />
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+        </com.google.android.material.card.MaterialCardView>
+
+    </LinearLayout>
+
+</ScrollView>

app/src/main/res/layout/activity_vpn_scan.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:orientation="vertical">
+
+    <com.google.android.material.progressindicator.LinearProgressIndicator
+            android:id="@+id/scanVPNProgress"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:indeterminate="true" />
+
+        <androidx.recyclerview.widget.RecyclerView
+            android:id="@+id/scanVPNResult"
+            android:layout_width="match_parent"
+            android:layout_height="match_parent"
+            android:clipToPadding="false"
+            android:paddingStart="16dp"
+            android:paddingEnd="16dp"
+            android:paddingBottom="16dp" />
+
+</LinearLayout>

app/src/main/res/layout/fragment_settings.xml

@@ -340,6 +340,55 @@
 
         </com.google.android.material.card.MaterialCardView>
 
+        <com.google.android.material.card.MaterialCardView
+            style="?attr/materialCardViewElevatedStyle"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="16dp">
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:orientation="vertical"
+                android:paddingStart="16dp"
+                android:paddingTop="16dp"
+                android:paddingEnd="16dp"
+                android:paddingBottom="8dp">
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/title_debug"
+                    android:textAppearance="?attr/textAppearanceTitleLarge">
+
+                </TextView>
+
+                <TextView
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="8dp"
+                    android:text="@string/message_debug_tools" />
+
+                <LinearLayout
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:gravity="center_vertical|end"
+                    android:orientation="horizontal">
+
+                    <Button
+                        android:id="@+id/openDebugButton"
+                        style="@style/Widget.Material3.Button.TextButton"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:text="@string/action_open" />
+
+                </LinearLayout>
+
+            </LinearLayout>
+
+        </com.google.android.material.card.MaterialCardView>
+
+
     </LinearLayout>
 
 </ScrollView>

app/src/main/res/layout/view_vpn_app_item.xml

@@ -0,0 +1,186 @@
+<?xml version="1.0" encoding="utf-8"?>
+<com.google.android.material.card.MaterialCardView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    style="?attr/materialCardViewElevatedStyle"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+
+    android:layout_marginTop="16dp"
+    android:focusable="true"
+    android:gravity="center_vertical"
+    android:orientation="horizontal">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        android:padding="16dp">
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="56dp"
+            android:gravity="center_vertical"
+            android:orientation="horizontal">
+
+            <ImageView
+                android:id="@+id/appIcon"
+                android:layout_width="40dp"
+                android:layout_height="40dp"
+                android:layout_marginEnd="16dp"
+                tools:src="@android:drawable/sym_def_app_icon" />
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="match_parent"
+                android:gravity="center_vertical"
+                android:orientation="vertical">
+
+                <TextView
+                    android:id="@+id/appName"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="?attr/textAppearanceTitleMedium"
+                    tools:text="App Name" />
+
+
+                <TextView
+                    android:id="@+id/packageName"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:textAppearance="?attr/textAppearanceTitleSmall"
+                    tools:text="com.myapp" />
+            </LinearLayout>
+
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:orientation="horizontal">
+
+            <TextView
+                style="?attr/textAppearanceBodySmall"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/vpn_app_type" />
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="end"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:id="@+id/appTypeText"
+                    style="?attr/textAppearanceBodySmall"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/loading"
+                    android:textColor="?android:colorForeground" />
+
+            </LinearLayout>
+
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:orientation="horizontal">
+
+            <TextView
+                style="?attr/textAppearanceBodySmall"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/vpn_core_type" />
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="end"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:id="@+id/coreTypeText"
+                    style="?attr/textAppearanceBodySmall"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/loading"
+                    android:textColor="?android:colorForeground" />
+
+            </LinearLayout>
+
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/corePathLayout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:orientation="horizontal">
+
+            <TextView
+                style="?attr/textAppearanceBodySmall"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/vpn_core_path" />
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="end"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:id="@+id/corePathText"
+                    style="?attr/textAppearanceBodySmall"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/loading"
+                    android:textColor="?android:colorForeground" />
+
+            </LinearLayout>
+
+
+        </LinearLayout>
+
+
+        <LinearLayout
+            android:id="@+id/goVersionLayout"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:orientation="horizontal">
+
+            <TextView
+                style="?attr/textAppearanceBodySmall"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:text="@string/vpn_golang_version" />
+
+            <LinearLayout
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:gravity="end"
+                android:orientation="horizontal">
+
+                <TextView
+                    android:id="@+id/goVersionText"
+                    style="?attr/textAppearanceBodySmall"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:text="@string/loading"
+                    android:textColor="?android:colorForeground" />
+
+            </LinearLayout>
+
+
+        </LinearLayout>
+
+
+    </LinearLayout>
+</com.google.android.material.card.MaterialCardView>

app/src/main/res/values/strings.xml

@@ -12,6 +12,7 @@
     <string name="title_edit_configuration">Edit Configuration</string>
     <string name="title_overview">Overview</string>
     <string name="title_groups">Groups</string>
+    <string name="title_debug">Debug</string>
 
     <string name="quick_toggle">Toggle</string>
     <string name="profile_name">Name</string>
@@ -125,7 +126,7 @@
     <string name="title_scan_result">Scan Result</string>
     <string name="action_select">Select</string>
     <string name="action_deselect">Deselect</string>
-    <string name="per_app_proxy_update_on_change">Update on China App Installed/Updated</string>
+    <string name="per_app_proxy_update_on_change">Update on new China App Installed</string>
     <string name="import_profile">Import profile</string>
     <string name="import_profile_message">Are you sure to import profile %s?</string>
     <string name="icloud_profile_unsupported">iCloud profile is not support on current platform</string>
@@ -133,4 +134,16 @@
     <string name="urltest">URLTest</string>
     <string name="expand">Expand</string>
     <string name="http_proxy">HTTP Proxy</string>
+    <string name="title_scan_vpn">Scan VPN apps</string>
+    <string name="message_scan_vpn">Check the VPN installed on the device and its contents</string>
+    <string name="action_scan_vpn">Scan</string>
+    <string name="message_debug_tools">Some debug utilities</string>
+    <string name="action_open">Open</string>
+    <string name="vpn_app_type">App Type</string>
+    <string name="vpn_core_type">Core Type</string>
+    <string name="vpn_core_path">Detected Path</string>
+    <string name="vpn_golang_version">Go Version</string>
+    <string name="vpn_app_type_other">Other</string>
+    <string name="vpn_core_type_unknown">Unknown</string>
+
 </resources>