tor-android/orbotservice/src/main/java/org/torproject/android/service/vpn/Tun2Socks.java

125 lines
3.7 KiB
Java

package org.torproject.android.service.vpn;
/*
* Copyright (c) 2013, Psiphon Inc.
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
import android.annotation.TargetApi;
import android.os.Build;
import android.os.ParcelFileDescriptor;
import android.util.Log;
import java.net.DatagramSocket;
import java.net.Socket;
@TargetApi(Build.VERSION_CODES.HONEYCOMB_MR1)
public class Tun2Socks
{
static{
System.loadLibrary("tun2socks");
}
public static interface IProtectSocket
{
boolean doVpnProtect(Socket socket);
boolean doVpnProtect(DatagramSocket socket);
};
private static final String TAG = Tun2Socks.class.getSimpleName();
private static final boolean LOGD = true;
private static Thread mThread;
private static ParcelFileDescriptor mVpnInterfaceFileDescriptor;
private static int mVpnInterfaceMTU;
private static String mVpnIpAddress;
private static String mVpnNetMask;
private static String mSocksServerAddress;
private static String mUdpgwServerAddress;
private static boolean mUdpgwTransparentDNS;
// Note: this class isn't a singleton, but you can't run more
// than one instance due to the use of global state (the lwip
// module, etc.) in the native code.
public static void init () {}
public static void Start(
ParcelFileDescriptor vpnInterfaceFileDescriptor,
int vpnInterfaceMTU,
String vpnIpAddress,
String vpnNetMask,
String socksServerAddress,
String udpgwServerAddress,
boolean udpgwTransparentDNS)
{
mVpnInterfaceFileDescriptor = vpnInterfaceFileDescriptor;
mVpnInterfaceMTU = vpnInterfaceMTU;
mVpnIpAddress = vpnIpAddress;
mVpnNetMask = vpnNetMask;
mSocksServerAddress = socksServerAddress;
mUdpgwServerAddress = udpgwServerAddress;
mUdpgwTransparentDNS = udpgwTransparentDNS;
if (mVpnInterfaceFileDescriptor != null)
runTun2Socks(
mVpnInterfaceFileDescriptor.detachFd(),
mVpnInterfaceMTU,
mVpnIpAddress,
mVpnNetMask,
mSocksServerAddress,
mUdpgwServerAddress,
mUdpgwTransparentDNS ? 1 : 0);
}
public static void Stop()
{
terminateTun2Socks();
}
public static void logTun2Socks(
String level,
String channel,
String msg)
{
String logMsg = level + "(" + channel + "): " + msg;
if (0 == level.compareTo("ERROR"))
{
Log.e(TAG, logMsg);
}
else
{
if (LOGD) Log.d(TAG, logMsg);
}
}
private native static int runTun2Socks(
int vpnInterfaceFileDescriptor,
int vpnInterfaceMTU,
String vpnIpAddress,
String vpnNetMask,
String socksServerAddress,
String udpgwServerAddress,
int udpgwTransparentDNS);
private native static void terminateTun2Socks();
}