mirror of
https://github.com/yggdrasil-network/crispa-android.git
synced 2024-11-09 20:11:01 +00:00
Make starting VPN service and running Yggdrasil (traffic hooks into Yggdrasil dummy interface)
This commit is contained in:
ChronosX88
parent
4e750afca7
commit
28b72376a7
GPG Key ID:
085A69A82C8C511A
@ -2,7 +2,8 @@
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<manifest xmlns:android="http://schemas.android.com/apk/res/android"
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xmlns:tools="http://schemas.android.com/tools"
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package="io.github.chronosx88.yggdrasil">
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<uses-permission android:name="android.permission.INTERNET" />
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<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
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<application
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android:allowBackup="true"
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android:icon="@mipmap/ic_launcher"
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@ -14,17 +15,12 @@
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<service
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android:name=".YggdrasilTunService"
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android:enabled="true"
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android:exported="true"></service>
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<service
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android:name=".YggdrasilService"
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android:enabled="true"
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android:exported="true"
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android:permission="android.permission.BIND_VPN_SERVICE">
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<intent-filter>
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<action android:name="android.net.VpnService"/>
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</intent-filter>
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</service>
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<activity android:name=".MainActivity">
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<intent-filter>
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<action android:name="android.intent.action.MAIN" />
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@ -1,11 +1,13 @@
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package io.github.chronosx88.yggdrasil
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import android.app.Activity
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import android.content.Intent
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import android.net.VpnService
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import android.os.Bundle
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import android.widget.Button
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import androidx.appcompat.app.AppCompatActivity
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class MainActivity : AppCompatActivity() {
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private var isYggStarted = false
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@ -16,12 +18,18 @@ class MainActivity : AppCompatActivity() {
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val connectButton = findViewById<Button>(R.id.connect_button)
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connectButton.setOnClickListener {
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if(!isYggStarted) {
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VpnService.prepare(this)
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val intent = Intent(this, YggdrasilTunService::class.java)
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startService(intent)
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connectButton.text = "Disconnect"
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isYggStarted = true
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// Prepare to establish a VPN connection.
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// This method returns null if the VPN application is already prepared
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// or if the user has previously consented to the VPN application.
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// Otherwise, it returns an Intent to a system activity.
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val vpnIntent = VpnService.prepare(this)
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if (vpnIntent != null) startActivityForResult(
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vpnIntent,
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0x0F
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)
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else onActivityResult(0x0F, Activity.RESULT_OK, null)
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} else {
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// FIXME fix this shit, this code doesn't stop service for some reasons
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val intent = Intent(this, YggdrasilTunService::class.java)
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stopService(intent)
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connectButton.text = "Connect"
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@ -29,4 +37,15 @@ class MainActivity : AppCompatActivity() {
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}
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}
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}
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override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
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super.onActivityResult(requestCode, resultCode, data)
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if (requestCode == 0x0F && resultCode == Activity.RESULT_OK) {
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val intent = Intent(this, YggdrasilTunService::class.java)
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startService(intent)
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val connectButton = findViewById<Button>(R.id.connect_button)
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connectButton.text = "Disconnect"
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isYggStarted = true
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}
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}
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}
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@ -13,39 +13,6 @@ import java.lang.Runtime.getRuntime
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val gson = Gson()
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fun Context.execYgg(cmd: String) = getRuntime().exec(
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"${yggBin.absolutePath} $cmd"
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)
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val Context.yggBin get() = File(filesDir, "yggdrasil-$YGGDRASIL_VERSION-linux-${CPU_ABI.let {
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when {
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it.contains("v7") -> "armhf"
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it.contains("v8") -> "arm64"
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else -> throw Exception("Unsupported ABI")
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}
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}
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}")
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@Throws(RuntimeException::class)
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fun Context.getYggConfig(): Config {
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val configFile = File(filesDir, "yggdrasil.conf")
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if(!configFile.exists()) {
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generateYggConfig()
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}
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val configStr = configFile.readText()
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val configHjsonObject = JsonValue.readHjson(configStr)
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return gson.fromJson(configHjsonObject.toString(Stringify.PLAIN), Config::class.java)
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}
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fun Context.generateYggConfig() {
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val process = execYgg("-genconf > ${filesDir.absolutePath}/yggdrasil.conf")
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process.waitFor()
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val configBytes = process.inputStream.readBytes()
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val configStr = String(configBytes)
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val configFile = File(filesDir, "yggdrasil.conf")
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configFile.writeText(configStr)
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}
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fun createNativeYggConfig(config: Config): NodeConfig {
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val nativeConfig = NodeConfig()
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nativeConfig.adminListen = config.adminListen
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@ -65,35 +32,3 @@ fun Context.saveYggConfig(config: Config) {
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val configFile = File(filesDir, "yggdrasil.conf")
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configFile.writeText(configJson)
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}
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fun Context.installBinary() {
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val type = "yggdrasil-$YGGDRASIL_VERSION-linux-${CPU_ABI.let {
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when{
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it.contains("v8") -> "arm64"
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it.contains("v7") -> "armhf"
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else -> throw Exception("Unsupported ABI")
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}
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}}"
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yggBin.apply {
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delete()
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createNewFile()
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}
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val input = assets.open(type)
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val output = yggBin.outputStream()
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try {
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input.copyTo(output)
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} finally {
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input.close(); output.close()
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}
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yggBin.setExecutable(true)
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val yggConfig = getYggConfig() // it generates config automatically
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yggConfig.ifName = "tun0"
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saveYggConfig(yggConfig)
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Log.i("Utils", "# Binary installed successfully")
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}
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@ -1,44 +0,0 @@
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package io.github.chronosx88.yggdrasil
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import android.app.Service
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import android.content.Intent
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import kotlin.system.exitProcess
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class YggdrasilService : Service() {
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private val LOG_TAG: String = YggdrasilService::class.java.simpleName
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override fun onBind(intent: Intent) = null
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companion object {
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var daemon: Process? = null
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}
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private fun start() {
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val process = execYgg("-useconffile ${filesDir.absolutePath}/yggdrasil.conf")
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process.waitFor()
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daemon = process
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}
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private fun stop() {
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daemon?.destroy()
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daemon = null
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}
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override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
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super.onStartCommand(intent, flags, startId)
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when (intent?.action) {
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"start" -> start()
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"stop" -> stop()
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"restart" -> {
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stop(); start()
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}
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"exit" -> exitProcess(0)
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}
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return START_STICKY
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}
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override fun onDestroy() {
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super.onDestroy()
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stop()
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}
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}
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@ -5,7 +5,18 @@ import android.content.Intent
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import android.net.VpnService
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import android.os.ParcelFileDescriptor
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import com.google.gson.Gson
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import dummy.ConduitEndpoint
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import kotlinx.coroutines.GlobalScope
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import kotlinx.coroutines.cancel
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import kotlinx.coroutines.launch
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import mobile.Mobile
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import mobile.Yggdrasil
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import java.io.FileInputStream
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import java.io.FileOutputStream
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import java.io.InputStream
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import java.io.OutputStream
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import kotlin.coroutines.CoroutineContext
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import kotlin.experimental.or
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class YggdrasilTunService : VpnService() {
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@ -13,6 +24,11 @@ class YggdrasilTunService : VpnService() {
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private var isRunning: Boolean = false
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}
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private var tunInterface: ParcelFileDescriptor? = null
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private lateinit var yggConduitEndpoint: ConduitEndpoint
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private var tunInputStream: InputStream? = null
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private var tunOutputStream: OutputStream? = null
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private lateinit var readCoroutine: CoroutineContext
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private lateinit var writeCoroutine: CoroutineContext
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override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
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super.onStartCommand(intent, flags, startId)
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@ -26,41 +42,85 @@ class YggdrasilTunService : VpnService() {
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}
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private fun setupTunInterface() {
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if(!yggBin.exists()) {
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installBinary()
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}
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val builder = Builder()
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val ygg = Yggdrasil()
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var configJson = Mobile.generateConfigJSON()
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val gson = Gson()
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val yggTmp = Yggdrasil()
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val tempYggConfig = getYggConfig()
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tempYggConfig.ifName = "none"
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yggTmp.startJSON(Gson().toJson(tempYggConfig).toByteArray())
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val address = yggTmp.addressString // hack for getting generic ipv6 string from NodeID
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var config = gson.fromJson(String(configJson), Map::class.java).toMutableMap()
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config = fixConfig(config)
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configJson = gson.toJson(config).toByteArray()
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yggConduitEndpoint = ygg.startJSON(configJson)
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val address = ygg.addressString // hack for getting generic ipv6 string from NodeID
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tunInterface = builder
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.addAddress(address, 7)
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.addRoute("0200::", 7)
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.establish()
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createYggdrasilService()
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tunInputStream = FileInputStream(tunInterface!!.fileDescriptor)
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tunOutputStream = FileOutputStream(tunInterface!!.fileDescriptor)
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readCoroutine = GlobalScope.launch {
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// FIXME it will throw exception (bad file descriptor) when coroutine will be canceled
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while (true) {
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readPacketsFromTun()
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}
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}
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writeCoroutine = GlobalScope.launch {
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while (true) {
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writePacketsToTun()
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}
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}
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}
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private fun createYggdrasilService() {
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val intent = Intent(this, YggdrasilService::class.java)
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intent.action = "start"
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startService(intent)
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private fun fixConfig(config: MutableMap<Any?, Any?>): MutableMap<Any?, Any?> {
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config["Listen"] = ""
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config["AdminListen"] = "tcp://localhost:9001"
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config["IfName"] = "dummy"
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(config["SessionFirewall"] as MutableMap<Any, Any>)["Enable"] = true
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(config["SwitchOptions"] as MutableMap<Any, Any>)["MaxTotalQueueSize"] = 1048576
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if (config["AutoStart"] == null) {
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val tmpMap = emptyMap<String, Boolean>().toMutableMap()
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tmpMap["WiFi"] = false
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tmpMap["Mobile"] = false
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config["AutoStart"] = tmpMap
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}
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return config
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}
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private fun stopYggdrasilService() {
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val intent = Intent(this, YggdrasilService::class.java)
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stopService(intent)
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private fun readPacketsFromTun() {
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if(tunInputStream != null) {
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val buffer = ByteArray(1024)
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tunInputStream!!.read(buffer)
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if (!isBufferEmpty(buffer)) {
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yggConduitEndpoint.send(buffer)
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}
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}
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}
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private fun isBufferEmpty(buffer: ByteArray): Boolean {
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var sum: Byte = 0
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for (i in buffer) {
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sum.or(i)
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}
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return sum == 0.toByte()
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}
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private fun writePacketsToTun() {
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if(tunOutputStream != null) {
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val buffer = yggConduitEndpoint.recv()
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if (!isBufferEmpty(buffer)) {
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tunOutputStream!!.write(buffer)
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}
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}
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}
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override fun onRevoke() {
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super.onRevoke()
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isRunning = false
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stopYggdrasilService()
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readCoroutine.cancel()
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writeCoroutine.cancel()
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tunInterface!!.close()
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tunInterface = null
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}
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@ -2,6 +2,7 @@ package io.github.chronosx88.yggdrasil.models.config
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import com.google.gson.annotations.SerializedName
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// FIXME This is old config scheme
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data class Config (
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@SerializedName("peers") var peers : List<String>,
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@SerializedName("interfacePeers") var interfacePeers : Map<String, List<String>>,
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