From 7fbea5459e59de1327f2c76a23f5940d67e4ae8d Mon Sep 17 00:00:00 2001 From: cyberta Date: Wed, 29 Jan 2020 02:55:25 -0600 Subject: implement wifi tethering --- .../de/blinkt/openvpn/core/OpenVPNService.java | 3 +- .../main/java/se/leap/bitmaskclient/Constants.java | 6 +- .../firewall/ConfigureTetheringTask.java | 111 ------------ .../bitmaskclient/firewall/FirewallCallback.java | 3 +- .../bitmaskclient/firewall/FirewallManager.java | 75 ++++++--- .../bitmaskclient/firewall/SetupTetheringTask.java | 187 +++++++++++++++++++++ .../firewall/ShutdownTetheringTask.java | 89 ++++++++++ .../bitmaskclient/fragments/TetheringDialog.java | 26 ++- .../tethering/TetheringBroadcastReceiver.java | 11 +- .../tethering/TetheringObservable.java | 62 +++++-- .../bitmaskclient/tethering/TetheringState.java | 34 +++- .../tethering/TetheringStateManager.java | 70 +++++++- .../leap/bitmaskclient/utils/PreferenceHelper.java | 36 ++-- 13 files changed, 503 insertions(+), 210 deletions(-) delete mode 100644 app/src/main/java/se/leap/bitmaskclient/firewall/ConfigureTetheringTask.java create mode 100644 app/src/main/java/se/leap/bitmaskclient/firewall/SetupTetheringTask.java create mode 100644 app/src/main/java/se/leap/bitmaskclient/firewall/ShutdownTetheringTask.java (limited to 'app/src/main/java') diff --git a/app/src/main/java/de/blinkt/openvpn/core/OpenVPNService.java b/app/src/main/java/de/blinkt/openvpn/core/OpenVPNService.java index a48d6477..72962493 100644 --- a/app/src/main/java/de/blinkt/openvpn/core/OpenVPNService.java +++ b/app/src/main/java/de/blinkt/openvpn/core/OpenVPNService.java @@ -518,7 +518,7 @@ public class OpenVPNService extends VpnService implements StateListener, Callbac super.onCreate(); notificationManager = new VpnNotificationManager(this, this); notificationManager.createOpenVpnNotificationChannel(); - firewallManager = new FirewallManager(this); + firewallManager = new FirewallManager(this, true); } @Override @@ -537,6 +537,7 @@ public class OpenVPNService extends VpnService implements StateListener, Callbac VpnStatus.flushLog(); notificationManager.deleteNotificationChannel(NOTIFICATION_CHANNEL_BG_ID); notificationManager.deleteNotificationChannel(NOTIFICATION_CHANNEL_NEWSTATUS_ID); + firewallManager.onDestroy(); } private String getTunConfigString() { diff --git a/app/src/main/java/se/leap/bitmaskclient/Constants.java b/app/src/main/java/se/leap/bitmaskclient/Constants.java index 58a92360..6a065d84 100644 --- a/app/src/main/java/se/leap/bitmaskclient/Constants.java +++ b/app/src/main/java/se/leap/bitmaskclient/Constants.java @@ -16,9 +16,9 @@ public interface Constants { String EXCLUDED_APPS = "excluded_apps"; String USE_PLUGGABLE_TRANSPORTS = "usePluggableTransports"; String SU_PERMISSION = "su_permission"; - String TETHERING_BLUETOOTH = "tethering_bluetooth"; - String TETHERING_WIFI = "tethering_wifi"; - String TETHERING_USB = "tethering_usb"; + String ALLOW_TETHERING_BLUETOOTH = "tethering_bluetooth"; + String ALLOW_TETHERING_WIFI = "tethering_wifi"; + String ALLOW_TETHERING_USB = "tethering_usb"; ////////////////////////////////////////////// diff --git a/app/src/main/java/se/leap/bitmaskclient/firewall/ConfigureTetheringTask.java b/app/src/main/java/se/leap/bitmaskclient/firewall/ConfigureTetheringTask.java deleted file mode 100644 index 3363152e..00000000 --- a/app/src/main/java/se/leap/bitmaskclient/firewall/ConfigureTetheringTask.java +++ /dev/null @@ -1,111 +0,0 @@ -/** - * Copyright (c) 2020 LEAP Encryption Access Project and contributers - * - * 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 . - */ -package se.leap.bitmaskclient.firewall; - -import android.os.AsyncTask; -import android.util.Log; - -import java.lang.ref.WeakReference; - -import se.leap.bitmaskclient.tethering.TetheringState; - -import static se.leap.bitmaskclient.firewall.FirewallManager.BITMASK_FORWARD; -import static se.leap.bitmaskclient.firewall.FirewallManager.BITMASK_POSTROUTING; -import static se.leap.bitmaskclient.utils.Cmd.runBlockingCmd; - -public class ConfigureTetheringTask extends AsyncTask { - - private WeakReference callbackWeakReference; - - ConfigureTetheringTask(FirewallCallback callback) { - callbackWeakReference = new WeakReference<>(callback); - } - - @Override - protected Boolean doInBackground(TetheringState... tetheringStates) { - TetheringState tetheringState = tetheringStates[0]; - StringBuilder log = new StringBuilder(); - - String[] bitmaskChain = new String[]{ - "su", - "id", - "iptables --list " + BITMASK_FORWARD + " && iptables --list " + BITMASK_POSTROUTING }; - - try { - boolean hasBitmaskChain = runBlockingCmd(bitmaskChain, log) == 0; - boolean allowSu = log.toString().contains("uid=0"); - callbackWeakReference.get().onSuRequested(allowSu); - if (!allowSu) { - return false; - } - - boolean success; - log = new StringBuilder(); - if (hasAnyTetheringEnabled(tetheringState)) { - if (!hasBitmaskChain) { - String[] createChains = new String[]{ - "su", - "iptables -t filter --new-chain " + BITMASK_FORWARD, - "iptables -t nat --new-chain " + BITMASK_POSTROUTING, - "iptables -t filter --insert FORWARD --jump " + BITMASK_FORWARD, - "iptables -t nat --insert POSTROUTING --jump " + BITMASK_POSTROUTING, - }; - success = runBlockingCmd(createChains, log) == 0; - Log.d(FirewallManager.TAG, "added " + BITMASK_FORWARD + " and " + BITMASK_POSTROUTING+" to iptables: " + success); - Log.d(FirewallManager.TAG, log.toString()); - } - - String[] addRules = new String[] { - "su", - "iptables -t filter --flush " + BITMASK_FORWARD, - "iptables -t nat --flush " + BITMASK_POSTROUTING, - "iptables -t filter --append " + BITMASK_FORWARD + " --jump ACCEPT", - "iptables -t nat --append " + BITMASK_POSTROUTING + " --jump MASQUERADE" }; - return runBlockingCmd(addRules, log) == 0; - } else { - if (!hasBitmaskChain) return true; - String[] removeChains = new String[] { - "su", - "iptables -t filter --delete FORWARD --jump " + BITMASK_FORWARD, - "iptables -t nat --delete POSTROUTING --jump " + BITMASK_POSTROUTING, - "iptables -t filter --flush " + BITMASK_FORWARD, - "iptables -t nat --flush " + BITMASK_POSTROUTING, - "iptables -t filter --delete-chain " + BITMASK_FORWARD, - "iptables -t nat --delete-chain " + BITMASK_POSTROUTING - }; - return runBlockingCmd(removeChains, log) == 0; - } - } catch (Exception e) { - e.printStackTrace(); - Log.e(FirewallManager.TAG, log.toString()); - } - return false; - } - - @Override - protected void onPostExecute(Boolean result) { - super.onPostExecute(result); - FirewallCallback callback = callbackWeakReference.get(); - if (callback != null) { - callback.onTetheringConfigured(result); - } - } - - private boolean hasAnyTetheringEnabled(TetheringState state) { - return state.isBluetoothTetheringEnabled || state.isUsbTetheringEnabled || state.isWifiTetheringEnabled; - } -} diff --git a/app/src/main/java/se/leap/bitmaskclient/firewall/FirewallCallback.java b/app/src/main/java/se/leap/bitmaskclient/firewall/FirewallCallback.java index c6b3934c..15fa426f 100644 --- a/app/src/main/java/se/leap/bitmaskclient/firewall/FirewallCallback.java +++ b/app/src/main/java/se/leap/bitmaskclient/firewall/FirewallCallback.java @@ -19,6 +19,7 @@ package se.leap.bitmaskclient.firewall; interface FirewallCallback { void onFirewallStarted(boolean success); void onFirewallStopped(boolean success); - void onTetheringConfigured(boolean success); + void onTetheringStarted(boolean success); + void onTetheringStopped(boolean success); void onSuRequested(boolean success); } diff --git a/app/src/main/java/se/leap/bitmaskclient/firewall/FirewallManager.java b/app/src/main/java/se/leap/bitmaskclient/firewall/FirewallManager.java index 78166671..82888668 100644 --- a/app/src/main/java/se/leap/bitmaskclient/firewall/FirewallManager.java +++ b/app/src/main/java/se/leap/bitmaskclient/firewall/FirewallManager.java @@ -18,13 +18,15 @@ package se.leap.bitmaskclient.firewall; import android.content.Context; +import java.util.Observable; +import java.util.Observer; + import de.blinkt.openvpn.core.VpnStatus; import se.leap.bitmaskclient.tethering.TetheringObservable; import se.leap.bitmaskclient.tethering.TetheringState; import se.leap.bitmaskclient.utils.PreferenceHelper; - -public class FirewallManager implements FirewallCallback { +public class FirewallManager implements FirewallCallback, Observer { public static String BITMASK_CHAIN = "bitmask_fw"; public static String BITMASK_FORWARD = "bitmask_forward"; public static String BITMASK_POSTROUTING = "bitmask_postrouting"; @@ -32,11 +34,13 @@ public class FirewallManager implements FirewallCallback { private Context context; - public FirewallManager(Context context) { + public FirewallManager(Context context, boolean observeTethering) { this.context = context; + if (observeTethering) { + TetheringObservable.getInstance().addObserver(this); + } } - @Override public void onFirewallStarted(boolean success) { if (success) { @@ -56,11 +60,20 @@ public class FirewallManager implements FirewallCallback { } @Override - public void onTetheringConfigured(boolean success) { + public void onTetheringStarted(boolean success) { + if (success) { + VpnStatus.logInfo("[FIREWALL] Rules for tethering enabled"); + } else { + VpnStatus.logError("[FIREWALL] Could not enable rules for tethering."); + } + } + + @Override + public void onTetheringStopped(boolean success) { if (success) { - VpnStatus.logInfo("[FIREWALL] Rules for tethering configured"); + VpnStatus.logInfo("[FIREWALL] Rules for tethering successfully disabled"); } else { - VpnStatus.logError("[FIREWALL] Could not establish rules for tethering "); + VpnStatus.logError("[FIREWALL] Could not disable rules for tethering."); } } @@ -72,30 +85,32 @@ public class FirewallManager implements FirewallCallback { } } + public void onDestroy() { + TetheringObservable.getInstance().deleteObserver(this); + } + public void start() { startIPv6Firewall(); - if (TetheringObservable.getInstance().hasAnyTetheringEnabled()) { - TetheringState deviceTethering = TetheringObservable.getInstance().getTetheringState(); - TetheringState vpnTethering = new TetheringState(); - vpnTethering.isWifiTetheringEnabled = deviceTethering.isWifiTetheringEnabled && PreferenceHelper.getWifiTethering(context); - vpnTethering.isUsbTetheringEnabled = deviceTethering.isUsbTetheringEnabled && PreferenceHelper.getUsbTethering(context); - vpnTethering.isBluetoothTetheringEnabled = deviceTethering.isBluetoothTetheringEnabled && PreferenceHelper.getBluetoothTethering(context); - configureTethering(vpnTethering); + TetheringState tetheringState = TetheringObservable.getInstance().getTetheringState(); + if (tetheringState.hasAnyDeviceTetheringEnabled() && tetheringState.hasAnyVpnTetheringAllowed()) { + startTethering(); } } + public void stop() { - shutdownIPv6Firewall(); - TetheringState allowedTethering = new TetheringState(); - allowedTethering.isWifiTetheringEnabled = PreferenceHelper.getWifiTethering(context); - allowedTethering.isUsbTetheringEnabled = PreferenceHelper.getUsbTethering(context); - allowedTethering.isBluetoothTetheringEnabled = PreferenceHelper.getBluetoothTethering(context); - configureTethering(allowedTethering); + stopIPv6Firewall(); + stopTethering(); + } + + public void startTethering() { + SetupTetheringTask task = new SetupTetheringTask(this); + task.execute(); } - public void configureTethering(TetheringState state) { - ConfigureTetheringTask task = new ConfigureTetheringTask(this); - task.execute(state); + private void stopTethering() { + ShutdownTetheringTask task = new ShutdownTetheringTask(this); + task.execute(); } private void startIPv6Firewall() { @@ -103,9 +118,21 @@ public class FirewallManager implements FirewallCallback { task.execute(); } - private void shutdownIPv6Firewall() { + private void stopIPv6Firewall() { ShutdownIPv6FirewallTask task = new ShutdownIPv6FirewallTask(this); task.execute(); } + @Override + public void update(Observable o, Object arg) { + if (o instanceof TetheringObservable) { + TetheringObservable observable = (TetheringObservable) o; + TetheringState state = observable.getTetheringState(); + if (state.hasAnyVpnTetheringAllowed() && state.hasAnyDeviceTetheringEnabled()) { + startTethering(); + } else { + stopTethering(); + } + } + } } diff --git a/app/src/main/java/se/leap/bitmaskclient/firewall/SetupTetheringTask.java b/app/src/main/java/se/leap/bitmaskclient/firewall/SetupTetheringTask.java new file mode 100644 index 00000000..93054099 --- /dev/null +++ b/app/src/main/java/se/leap/bitmaskclient/firewall/SetupTetheringTask.java @@ -0,0 +1,187 @@ +/** + * Copyright (c) 2020 LEAP Encryption Access Project and contributers + * + * 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 . + */ +package se.leap.bitmaskclient.firewall; + +import android.os.AsyncTask; +import android.util.Log; + +import java.lang.ref.WeakReference; +import java.net.NetworkInterface; +import java.util.Enumeration; + +import se.leap.bitmaskclient.tethering.TetheringObservable; +import se.leap.bitmaskclient.tethering.TetheringState; + +import static se.leap.bitmaskclient.firewall.FirewallManager.BITMASK_FORWARD; +import static se.leap.bitmaskclient.firewall.FirewallManager.BITMASK_POSTROUTING; +import static se.leap.bitmaskclient.utils.Cmd.runBlockingCmd; + +public class SetupTetheringTask extends AsyncTask { + + private static final String TAG = SetupTetheringTask.class.getSimpleName(); + private WeakReference callbackWeakReference; + + SetupTetheringTask(FirewallCallback callback) { + callbackWeakReference = new WeakReference<>(callback); + } + + @Override + protected Boolean doInBackground(Void... args) { + TetheringState tetheringState = TetheringObservable.getInstance().getTetheringState(); + StringBuilder log = new StringBuilder(); + + String[] bitmaskChain = new String[]{ + "su", + "id", + "iptables -t filter --list " + BITMASK_FORWARD + " && iptables -t nat --list " + BITMASK_POSTROUTING }; + + try { + boolean hasBitmaskChain = runBlockingCmd(bitmaskChain, log) == 0; + boolean allowSu = log.toString().contains("uid=0"); + callbackWeakReference.get().onSuRequested(allowSu); + if (!allowSu) { + return false; + } + + boolean success = true; + log = new StringBuilder(); + + if (!hasBitmaskChain && tetheringState.hasAnyVpnTetheringAllowed() && tetheringState.hasAnyDeviceTetheringEnabled()) { + createChains(log); + } + + if (tetheringState.tetherWifiVpn()) { + log = new StringBuilder(); + success = addWifiTetheringRules(tetheringState, log); + } else if (!tetheringState.isVpnWifiTetheringAllowed){ + success = removeWifiTetheringRules(tetheringState, log); + } + + if (tetheringState.tetherUsbVpn()) { + success = success && addUsbTetheringRules(tetheringState, log); + } else if (!tetheringState.isVpnUsbTetheringAllowed) { + success = success && removeUsbTetheringRules(tetheringState, log); + } + + if (tetheringState.tetherBluetoothVpn()) { + success = success && addBluetoothTetheringRules(tetheringState, log); + } else if (!tetheringState.isVpnBluetoothTetheringAllowed) { + success = success && removeBluetoothTetheringRules(tetheringState, log); + } + return success; + } catch (Exception e) { + e.printStackTrace(); + Log.e(FirewallManager.TAG, log.toString()); + } + return false; + } + + + //TODO: implement the follwing methods -v + private boolean removeBluetoothTetheringRules(TetheringState tetheringState, StringBuilder log) { + return true; + } + + private boolean removeUsbTetheringRules(TetheringState tetheringState, StringBuilder log) { + return true; + } + + private boolean addBluetoothTetheringRules(TetheringState tetheringState, StringBuilder log) { + return true; + } + + private boolean addUsbTetheringRules(TetheringState tetheringState, StringBuilder log) { + return true; + } + + + private void createChains(StringBuilder log) throws Exception { + boolean success; + String[] createChains = new String[]{ + "su", + "iptables -t filter --new-chain " + BITMASK_FORWARD, + "iptables -t nat --new-chain " + BITMASK_POSTROUTING, + "iptables -t filter --insert FORWARD --jump " + BITMASK_FORWARD, + "iptables -t nat --insert POSTROUTING --jump " + BITMASK_POSTROUTING, + }; + success = runBlockingCmd(createChains, log) == 0; + Log.d(FirewallManager.TAG, "added " + BITMASK_FORWARD + " and " + BITMASK_POSTROUTING+" to iptables: " + success); + Log.d(FirewallManager.TAG, log.toString()); + } + + private boolean addWifiTetheringRules(TetheringState state, StringBuilder log) throws Exception { + Log.d(TAG, "add Wifi tethering Rules"); + String[] addRules = new String[] { + "su", + "iptables -t filter --flush " + BITMASK_FORWARD, + "iptables -t nat --flush " + BITMASK_POSTROUTING, + "iptables -t filter --append " + BITMASK_FORWARD + " --jump ACCEPT", + "iptables -t nat --append " + BITMASK_POSTROUTING + " --jump MASQUERADE", + "if [[ ! `ip rule show from "+ state.wifiAddress+" lookup 61` ]]; " + + "then ip rule add from " + state.wifiAddress + " lookup 61; " + + "fi", + "if [[ ! `ip route list table 61 | grep 'default dev " + getTunName() + " scope link'` ]]; " + + "then ip route add default dev " + getTunName() + " scope link table 61; " + + "fi", + "if [[ ! `ip route list table 61 | grep '"+ state.wifiAddress+" dev "+ state.wifiInterface+" scope link'` ]]; " + + "then ip route add " + state.wifiAddress + " dev " + state.wifiInterface + " scope link table 61; " + + "fi", + "if [[ ! `ip route list table 61 | grep 'broadcast 255.255.255.255 dev " + state.wifiInterface + " scope link'` ]]; " + + "then ip route add broadcast 255.255.255.255 dev " + state.wifiInterface + " scope link table 61; " + + "fi" + }; + + return runBlockingCmd(addRules, log) == 0; + } + + private boolean removeWifiTetheringRules(TetheringState state, StringBuilder log) throws Exception { + Log.d(TAG, "add Wifi tethering Rules"); + String[] removeRules = new String[] { + "su", + "ip route delete broadcast 255.255.255.255 dev " + state.wifiInterface +" scope link table 61", + "ip route delete " + state.lastWifiAddress + " dev " + state.wifiInterface +" scope link table 61", + "ip route delete default dev " + getTunName() + " scope link table 61", + "if [[ `ip rule show from " + state.wifiAddress+ " lookup 61` ]]; " + + "then ip rule del from " + state.wifiAddress + " lookup 61; " + + "fi", + }; + return runBlockingCmd(removeRules, log) == 0; + } + + private String getTunName() { + try { + for (Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements(); ) { + NetworkInterface networkInterface = en.nextElement(); + if (networkInterface.getName().contains("tun")) { + return networkInterface.getName(); + } + } + } catch (Exception e) { + e.printStackTrace(); + } + return ""; + } + + @Override + protected void onPostExecute(Boolean result) { + super.onPostExecute(result); + FirewallCallback callback = callbackWeakReference.get(); + if (callback != null) { + callback.onTetheringStarted(result); + } + } +} diff --git a/app/src/main/java/se/leap/bitmaskclient/firewall/ShutdownTetheringTask.java b/app/src/main/java/se/leap/bitmaskclient/firewall/ShutdownTetheringTask.java new file mode 100644 index 00000000..6c15c3e3 --- /dev/null +++ b/app/src/main/java/se/leap/bitmaskclient/firewall/ShutdownTetheringTask.java @@ -0,0 +1,89 @@ +/** + * Copyright (c) 2020 LEAP Encryption Access Project and contributers + * + * 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 . + */ +package se.leap.bitmaskclient.firewall; + +import android.os.AsyncTask; +import android.util.Log; + +import java.lang.ref.WeakReference; + +import se.leap.bitmaskclient.tethering.TetheringObservable; +import se.leap.bitmaskclient.tethering.TetheringState; + +import static se.leap.bitmaskclient.firewall.FirewallManager.BITMASK_FORWARD; +import static se.leap.bitmaskclient.firewall.FirewallManager.BITMASK_POSTROUTING; +import static se.leap.bitmaskclient.utils.Cmd.runBlockingCmd; + +public class ShutdownTetheringTask extends AsyncTask { + + private WeakReference callbackWeakReference; + + ShutdownTetheringTask(FirewallCallback callback) { + callbackWeakReference = new WeakReference<>(callback); + } + + @Override + protected Boolean doInBackground(Void... args) { + TetheringState tetheringState = TetheringObservable.getInstance().getTetheringState(); + StringBuilder log = new StringBuilder(); + + String[] bitmaskChain = new String[]{ + "su", + "id", + "iptables -t filter --list " + BITMASK_FORWARD + " && iptables -t nat --list " + BITMASK_POSTROUTING }; + + try { + boolean hasBitmaskChain = runBlockingCmd(bitmaskChain, log) == 0; + boolean allowSu = log.toString().contains("uid=0"); + callbackWeakReference.get().onSuRequested(allowSu); + if (!allowSu || !hasBitmaskChain) { + return false; + } + + log = new StringBuilder(); + + String[] removeChains = new String[] { + "su", + "ip route flush table 61", + "if [[ `ip rule show from " + tetheringState.wifiAddress+ " lookup 61` ]]; " + + "then ip rule del from " + tetheringState.wifiAddress + " lookup 61; " + + "fi", + "iptables -t filter --delete FORWARD --jump " + BITMASK_FORWARD, + "iptables -t nat --delete POSTROUTING --jump " + BITMASK_POSTROUTING, + "iptables -t filter --flush " + BITMASK_FORWARD, + "iptables -t nat --flush " + BITMASK_POSTROUTING, + "iptables -t filter --delete-chain " + BITMASK_FORWARD, + "iptables -t nat --delete-chain " + BITMASK_POSTROUTING, + }; + return runBlockingCmd(removeChains, log) == 0; + + } catch (Exception e) { + e.printStackTrace(); + Log.e(FirewallManager.TAG, log.toString()); + } + return false; + } + + @Override + protected void onPostExecute(Boolean result) { + super.onPostExecute(result); + FirewallCallback callback = callbackWeakReference.get(); + if (callback != null) { + callback.onTetheringStarted(result); + } + } +} diff --git a/app/src/main/java/se/leap/bitmaskclient/fragments/TetheringDialog.java b/app/src/main/java/se/leap/bitmaskclient/fragments/TetheringDialog.java index a8f96986..2e1e8f95 100644 --- a/app/src/main/java/se/leap/bitmaskclient/fragments/TetheringDialog.java +++ b/app/src/main/java/se/leap/bitmaskclient/fragments/TetheringDialog.java @@ -26,10 +26,8 @@ import java.util.Observer; import butterknife.ButterKnife; import butterknife.InjectView; import se.leap.bitmaskclient.R; -import se.leap.bitmaskclient.eip.EipCommand; import se.leap.bitmaskclient.firewall.FirewallManager; import se.leap.bitmaskclient.tethering.TetheringObservable; -import se.leap.bitmaskclient.tethering.TetheringState; import se.leap.bitmaskclient.utils.PreferenceHelper; import se.leap.bitmaskclient.views.IconCheckboxEntry; @@ -136,16 +134,14 @@ public class TetheringDialog extends AppCompatDialogFragment implements Observer builder.setView(view) .setPositiveButton(android.R.string.ok, (dialog, id) -> { - PreferenceHelper.wifiTethering(getContext(), dataset[0].checked); - PreferenceHelper.usbTethering(getContext(), dataset[1].checked); - PreferenceHelper.bluetoothTethering(getContext(), dataset[2].checked); - FirewallManager firewallManager = new FirewallManager(getContext().getApplicationContext()); - TetheringState runningTethering = TetheringObservable.getInstance().getTetheringState(); - TetheringState vpnTethering = new TetheringState(); - vpnTethering.isWifiTetheringEnabled = runningTethering.isWifiTetheringEnabled && dataset[0].checked; - vpnTethering.isUsbTetheringEnabled = runningTethering.isUsbTetheringEnabled && dataset[1].checked; - vpnTethering.isBluetoothTetheringEnabled = runningTethering.isBluetoothTetheringEnabled && dataset[2].checked; - firewallManager.configureTethering(vpnTethering); + PreferenceHelper.allowWifiTethering(getContext(), dataset[0].checked); + PreferenceHelper.allowUsbTethering(getContext(), dataset[1].checked); + PreferenceHelper.allowBluetoothTethering(getContext(), dataset[2].checked); + TetheringObservable.allowVpnWifiTethering(dataset[0].checked); + TetheringObservable.allowVpnUsbTethering(dataset[1].checked); + TetheringObservable.allowVpnBluetoothTethering(dataset[2].checked); + FirewallManager firewallManager = new FirewallManager(getContext().getApplicationContext(), false); + firewallManager.startTethering(); }) .setNegativeButton(R.string.cancel, (dialog, id) -> dialog.cancel()); return builder.create(); @@ -195,15 +191,15 @@ public class TetheringDialog extends AppCompatDialogFragment implements Observer dataset = new DialogListAdapter.ViewModel[] { new DialogListAdapter.ViewModel(getContext().getResources().getDrawable(R.drawable.ic_wifi), getContext().getString(R.string.tethering_wifi), - PreferenceHelper.getWifiTethering(getContext()), + PreferenceHelper.isWifiTetheringAllowed(getContext()), TetheringObservable.getInstance().isWifiTetheringEnabled()), new DialogListAdapter.ViewModel(getContext().getResources().getDrawable(R.drawable.ic_usb), getContext().getString(R.string.tethering_usb), - PreferenceHelper.getUsbTethering(getContext()), + PreferenceHelper.isUsbTetheringAllowed(getContext()), TetheringObservable.getInstance().isUsbTetheringEnabled()), new DialogListAdapter.ViewModel(getContext().getResources().getDrawable(R.drawable.ic_bluetooth), getContext().getString(R.string.tethering_bluetooth), - PreferenceHelper.getBluetoothTethering(getContext()), + PreferenceHelper.isBluetoothTetheringAllowed(getContext()), TetheringObservable.getInstance().isUsbTetheringEnabled()) }; } diff --git a/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringBroadcastReceiver.java b/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringBroadcastReceiver.java index 8dab49ce..369a6cf6 100644 --- a/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringBroadcastReceiver.java +++ b/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringBroadcastReceiver.java @@ -30,16 +30,7 @@ public class TetheringBroadcastReceiver extends BroadcastReceiver { public void onReceive(Context context, Intent intent) { if ("android.net.wifi.WIFI_AP_STATE_CHANGED".equals(intent.getAction())) { Log.d(TAG, "TETHERING WIFI_AP_STATE_CHANGED"); - int apState = intent.getIntExtra(WifiManager.EXTRA_WIFI_STATE, 0); - if (WifiHotspotState.WIFI_AP_STATE_ENABLED.ordinal() == apState % 10) { - if (!TetheringObservable.getInstance().isWifiTetheringEnabled()) { - TetheringObservable.setWifiTethering(true); - } - } else { - if (TetheringObservable.getInstance().isWifiTetheringEnabled()) { - TetheringObservable.setWifiTethering(false); - } - } + TetheringStateManager.updateWifiTetheringState(); } else if ("android.net.conn.TETHER_STATE_CHANGED".equals(intent.getAction())) { Log.d(TAG, "TETHERING TETHER_STATE_CHANGED"); TetheringStateManager.updateUsbTetheringState(); diff --git a/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringObservable.java b/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringObservable.java index 79c1ec6d..b84f3494 100644 --- a/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringObservable.java +++ b/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringObservable.java @@ -34,22 +34,60 @@ public class TetheringObservable extends Observable { return instance; } - static void setWifiTethering(boolean enabled) { - getInstance().tetheringState.isWifiTetheringEnabled = enabled; - getInstance().setChanged(); - getInstance().notifyObservers(); + public static void allowVpnWifiTethering(boolean enabled) { + if (getInstance().tetheringState.isVpnWifiTetheringAllowed != enabled) { + getInstance().tetheringState.isVpnWifiTetheringAllowed = enabled; + getInstance().setChanged(); + getInstance().notifyObservers(); + } + } + + public static void allowVpnUsbTethering(boolean enabled) { + if (getInstance().tetheringState.isUsbTetheringEnabled != enabled) { + getInstance().tetheringState.isUsbTetheringEnabled = enabled; + getInstance().setChanged(); + getInstance().notifyObservers(); + } + } + + public static void allowVpnBluetoothTethering(boolean enabled) { + if (getInstance().tetheringState.isBluetoothTetheringEnabled != enabled) { + getInstance().tetheringState.isBluetoothTetheringEnabled = enabled; + getInstance().setChanged(); + getInstance().notifyObservers(); + } + } + + static void setWifiTethering(boolean enabled, String address, String interfaceName) { + if (getInstance().tetheringState.isWifiTetheringEnabled != enabled || + !getInstance().tetheringState.wifiInterface.equals(interfaceName) || + !getInstance().tetheringState.wifiAddress.equals(address)) { + getInstance().tetheringState.isWifiTetheringEnabled = enabled; + getInstance().tetheringState.wifiInterface = interfaceName; + getInstance().tetheringState.wifiAddress = address; + if ("".equals(address)) { + getInstance().tetheringState.lastWifiAddress = address; + } + getInstance().setChanged(); + getInstance().notifyObservers(); + } + } static void setUsbTethering(boolean enabled) { - getInstance().tetheringState.isUsbTetheringEnabled = enabled; - getInstance().setChanged(); - getInstance().notifyObservers(); + if (getInstance().tetheringState.isUsbTetheringEnabled != enabled) { + getInstance().tetheringState.isUsbTetheringEnabled = enabled; + getInstance().setChanged(); + getInstance().notifyObservers(); + } } static void setBluetoothTethering(boolean enabled) { - getInstance().tetheringState.isBluetoothTetheringEnabled = enabled; - getInstance().setChanged(); - getInstance().notifyObservers(); + if (getInstance().tetheringState.isBluetoothTetheringEnabled != enabled) { + getInstance().tetheringState.isBluetoothTetheringEnabled = enabled; + getInstance().setChanged(); + getInstance().notifyObservers(); + } } public boolean isBluetoothTetheringEnabled() { @@ -67,8 +105,4 @@ public class TetheringObservable extends Observable { public TetheringState getTetheringState() { return tetheringState; } - - public boolean hasAnyTetheringEnabled() { - return tetheringState.isBluetoothTetheringEnabled || tetheringState.isUsbTetheringEnabled || tetheringState.isWifiTetheringEnabled; - } } diff --git a/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringState.java b/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringState.java index 50fead91..9708639a 100644 --- a/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringState.java +++ b/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringState.java @@ -1,7 +1,39 @@ package se.leap.bitmaskclient.tethering; -public class TetheringState { +public class TetheringState implements Cloneable { public boolean isWifiTetheringEnabled; public boolean isUsbTetheringEnabled; public boolean isBluetoothTetheringEnabled; + public boolean isVpnWifiTetheringAllowed; + public boolean isVpnUsbTetheringAllowed; + public boolean isVpnBluetoothTetheringAllowed; + public String wifiInterface = ""; + public String usbInterface = ""; + public String bluetoothInterface = ""; + public String wifiAddress = ""; + public String lastWifiAddress = ""; + public String usbAddress = ""; + public String bluetoothAddress = ""; + + public boolean tetherWifiVpn() { + return isWifiTetheringEnabled && isVpnWifiTetheringAllowed; + } + + public boolean tetherUsbVpn() { + return isUsbTetheringEnabled && isVpnUsbTetheringAllowed; + } + + public boolean tetherBluetoothVpn() { + return isBluetoothTetheringEnabled && isVpnBluetoothTetheringAllowed; + } + + public boolean hasAnyDeviceTetheringEnabled() { + return isBluetoothTetheringEnabled || isUsbTetheringEnabled || isWifiTetheringEnabled; + } + + public boolean hasAnyVpnTetheringAllowed() { + return isVpnWifiTetheringAllowed || isVpnUsbTetheringAllowed || isVpnBluetoothTetheringAllowed; + } + + } diff --git a/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringStateManager.java b/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringStateManager.java index 0d4f56d8..58d67872 100644 --- a/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringStateManager.java +++ b/app/src/main/java/se/leap/bitmaskclient/tethering/TetheringStateManager.java @@ -18,12 +18,20 @@ package se.leap.bitmaskclient.tethering; import android.content.Context; import android.content.IntentFilter; +import android.util.Log; +import java.net.Inet4Address; +import java.net.InterfaceAddress; import java.net.NetworkInterface; import java.util.Enumeration; +import java.util.List; import se.leap.bitmaskclient.utils.Cmd; +import static se.leap.bitmaskclient.utils.PreferenceHelper.isBluetoothTetheringAllowed; +import static se.leap.bitmaskclient.utils.PreferenceHelper.isUsbTetheringAllowed; +import static se.leap.bitmaskclient.utils.PreferenceHelper.isWifiTetheringAllowed; + /** * This manager tries to figure out the current tethering states for Wifi, USB and Bluetooth * The default behavior differs for failing attempts to get these states: @@ -55,15 +63,14 @@ public class TetheringStateManager { intentFilter.addAction("android.net.wifi.WIFI_AP_STATE_CHANGED"); context.getApplicationContext().registerReceiver(broadcastReceiver, intentFilter); instance.wifiManager = new WifiManagerWrapper(context); + TetheringObservable.allowVpnWifiTethering(isWifiTetheringAllowed(context)); + TetheringObservable.allowVpnUsbTethering(isUsbTetheringAllowed(context)); + TetheringObservable.allowVpnBluetoothTethering(isBluetoothTetheringAllowed(context)); updateWifiTetheringState(); updateUsbTetheringState(); updateBluetoothTetheringState(); } - private static boolean isWifiApEnabled() throws Exception { - return instance.wifiManager.isWifiAPEnabled(); - } - private static boolean getUsbTetheringState() { try { @@ -82,6 +89,54 @@ public class TetheringStateManager { return false; } + public static String getWifiAddressRange() { + String interfaceAddress = getWifiInterfaceAddress(); + if (interfaceAddress.split("\\.").length == 4) { + String result = interfaceAddress.substring(0, interfaceAddress.lastIndexOf(".")); + result = result + ".0/24"; + Log.d(TAG, "wifiAddressRange = " + result); + return result; + } + return ""; + } + + private static String getWifiInterfaceAddress() { + NetworkInterface networkInterface = getWlanInterface(); + if (networkInterface != null) { + List ifaceAddresses = networkInterface.getInterfaceAddresses(); + for (InterfaceAddress ifaceAddres : ifaceAddresses) { + if (ifaceAddres.getAddress() instanceof Inet4Address) { + return ifaceAddres.getAddress().getHostAddress(); + } + } + } + return ""; + } + + public static String getWifiInterfaceName() { + NetworkInterface networkInterface = getWlanInterface(); + if (networkInterface != null) { + return networkInterface.getName(); + } + return ""; + } + + private static NetworkInterface getWlanInterface() { + try { + for(Enumeration en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) { + NetworkInterface networkInterface = en.nextElement(); + if(!networkInterface.isLoopback()){ + if(networkInterface.getName().contains("wlan") || networkInterface.getName().contains("eth")){ + return networkInterface; + } + } + } + } catch(Exception e){ + e.printStackTrace(); + } + return null; + } + private static boolean isBluetoothTetheringEnabled() { StringBuilder log = new StringBuilder(); boolean hasBtPan = false; @@ -104,12 +159,9 @@ public class TetheringStateManager { } static void updateWifiTetheringState() { - boolean lastState = TetheringObservable.getInstance().isWifiTetheringEnabled(); + WifiManagerWrapper manager = getInstance().wifiManager; try { - boolean currentState = isWifiApEnabled(); - if (currentState != lastState) { - TetheringObservable.setWifiTethering(currentState); - } + TetheringObservable.setWifiTethering(manager.isWifiAPEnabled(), getWifiAddressRange(), getWifiInterfaceName()); } catch (Exception e) { e.printStackTrace(); } diff --git a/app/src/main/java/se/leap/bitmaskclient/utils/PreferenceHelper.java b/app/src/main/java/se/leap/bitmaskclient/utils/PreferenceHelper.java index 25e4b797..073e338c 100644 --- a/app/src/main/java/se/leap/bitmaskclient/utils/PreferenceHelper.java +++ b/app/src/main/java/se/leap/bitmaskclient/utils/PreferenceHelper.java @@ -3,18 +3,13 @@ package se.leap.bitmaskclient.utils; import android.content.Context; import android.content.SharedPreferences; import android.support.annotation.NonNull; -import android.support.annotation.Nullable; import org.json.JSONException; import org.json.JSONObject; import java.net.MalformedURLException; import java.net.URL; -import java.util.ArrayList; import java.util.HashSet; -import java.util.List; -import java.util.Locale; -import java.util.Map; import java.util.Set; import de.blinkt.openvpn.VpnProfile; @@ -25,16 +20,15 @@ import static se.leap.bitmaskclient.Constants.ALWAYS_ON_SHOW_DIALOG; import static se.leap.bitmaskclient.Constants.DEFAULT_SHARED_PREFS_BATTERY_SAVER; import static se.leap.bitmaskclient.Constants.EXCLUDED_APPS; import static se.leap.bitmaskclient.Constants.LAST_USED_PROFILE; -import static se.leap.bitmaskclient.Constants.PREFERENCES_APP_VERSION; import static se.leap.bitmaskclient.Constants.PROVIDER_CONFIGURED; import static se.leap.bitmaskclient.Constants.PROVIDER_EIP_DEFINITION; import static se.leap.bitmaskclient.Constants.PROVIDER_PRIVATE_KEY; import static se.leap.bitmaskclient.Constants.PROVIDER_VPN_CERTIFICATE; import static se.leap.bitmaskclient.Constants.SHARED_PREFERENCES; import static se.leap.bitmaskclient.Constants.SU_PERMISSION; -import static se.leap.bitmaskclient.Constants.TETHERING_BLUETOOTH; -import static se.leap.bitmaskclient.Constants.TETHERING_USB; -import static se.leap.bitmaskclient.Constants.TETHERING_WIFI; +import static se.leap.bitmaskclient.Constants.ALLOW_TETHERING_BLUETOOTH; +import static se.leap.bitmaskclient.Constants.ALLOW_TETHERING_USB; +import static se.leap.bitmaskclient.Constants.ALLOW_TETHERING_WIFI; import static se.leap.bitmaskclient.Constants.USE_PLUGGABLE_TRANSPORTS; /** @@ -149,28 +143,28 @@ public class PreferenceHelper { return getBoolean(context, DEFAULT_SHARED_PREFS_BATTERY_SAVER, false); } - public static void usbTethering(Context context, boolean isEnabled) { - putBoolean(context, TETHERING_USB, isEnabled); + public static void allowUsbTethering(Context context, boolean isEnabled) { + putBoolean(context, ALLOW_TETHERING_USB, isEnabled); } - public static boolean getUsbTethering(Context context) { - return getBoolean(context, TETHERING_USB, false); + public static boolean isUsbTetheringAllowed(Context context) { + return getBoolean(context, ALLOW_TETHERING_USB, false); } - public static void wifiTethering(Context context, boolean isEnabled) { - putBoolean(context, TETHERING_WIFI, isEnabled); + public static void allowWifiTethering(Context context, boolean isEnabled) { + putBoolean(context, ALLOW_TETHERING_WIFI, isEnabled); } - public static boolean getWifiTethering(Context context) { - return getBoolean(context, TETHERING_WIFI, false); + public static boolean isWifiTetheringAllowed(Context context) { + return getBoolean(context, ALLOW_TETHERING_WIFI, false); } - public static void bluetoothTethering(Context context, boolean isEnabled) { - putBoolean(context, TETHERING_BLUETOOTH, isEnabled); + public static void allowBluetoothTethering(Context context, boolean isEnabled) { + putBoolean(context, ALLOW_TETHERING_BLUETOOTH, isEnabled); } - public static boolean getBluetoothTethering(Context context) { - return getBoolean(context, TETHERING_BLUETOOTH, false); + public static boolean isBluetoothTetheringAllowed(Context context) { + return getBoolean(context, ALLOW_TETHERING_BLUETOOTH, false); } public static void saveShowAlwaysOnDialog(Context context, boolean showAlwaysOnDialog) { -- cgit v1.2.3