Fix IPv6 on wifi (7960d9f8) · Commits · e / os / android_frameworks_base

core/java/android/os/INetworkManagementService.aidl

+10 −0

Original line number	Diff line number	Diff line
		@@ -78,6 +78,16 @@ interface INetworkManagementService
		*/
		void setInterfaceIpv6PrivacyExtensions(String iface, boolean enable);

		/**
		* Disable IPv6 on an interface
		*/
		void disableIpv6(String iface);

		/**
		* Enable IPv6 on an interface
		*/
		void enableIpv6(String iface);

		/**
		* Retrieves the network routes currently configured on the specified
		* interface

services/java/com/android/server/NetworkManagementService.java

+22 −0

Original line number	Diff line number	Diff line
		@@ -508,6 +508,28 @@ public class NetworkManagementService extends INetworkManagementService.Stub
		}
		}

		public void enableIpv6(String iface) throws IllegalStateException {
		mContext.enforceCallingOrSelfPermission(
		android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService");
		try {
		mConnector.doCommand(String.format("interface ipv6 %s enable", iface));
		} catch (NativeDaemonConnectorException e) {
		throw new IllegalStateException(
		"Unable to communicate to native daemon for enabling ipv6");
		}
		}

		public void disableIpv6(String iface) throws IllegalStateException {
		mContext.enforceCallingOrSelfPermission(
		android.Manifest.permission.CHANGE_NETWORK_STATE, "NetworkManagementService");
		try {
		mConnector.doCommand(String.format("interface ipv6 %s disable", iface));
		} catch (NativeDaemonConnectorException e) {
		throw new IllegalStateException(
		"Unable to communicate to native daemon for disabling ipv6");
		}
		}

		public void addRoute(String interfaceName, RouteInfo route) {
		modifyRoute(interfaceName, ADD, route);
		}

wifi/java/android/net/wifi/WifiStateMachine.java

+27 −3

Original line number	Diff line number	Diff line
		@@ -1560,8 +1560,9 @@ public class WifiStateMachine extends StateMachine {

		try {
		mNwService.clearInterfaceAddresses(mInterfaceName);
		mNwService.disableIpv6(mInterfaceName);
		} catch (Exception e) {
		Log.e(TAG, "Failed to clear IP addresses on disconnect" + e);
		Log.e(TAG, "Failed to clear addresses or disable ipv6" + e);
		}

		/* Reset data structures */
		@@ -1841,6 +1842,21 @@ public class WifiStateMachine extends StateMachine {
		mWifiP2pManager = (WifiP2pManager) mContext.getSystemService(Context.WIFI_P2P_SERVICE);
		mWifiP2pChannel.connect(mContext, getHandler(), mWifiP2pManager.getMessenger());

		/* IPv6 is disabled at boot time and is controlled by framework
		* to be enabled only as long as we are connected to an access point
		*
		* This fixes issues, a few being:
		* - IPv6 addresses and routes stick around after disconnection
		* - When connected, the kernel is unaware and can fail to start IPv6 negotiation
		* - The kernel sometimes starts autoconfiguration when 802.1x is not complete
		*/
		try {
		mNwService.disableIpv6(mInterfaceName);
		} catch (RemoteException re) {
		Log.e(TAG, "Failed to disable IPv6: " + re);
		} catch (IllegalStateException e) {
		Log.e(TAG, "Failed to disable IPv6: " + e);
		}
		}
		}

		@@ -2734,6 +2750,14 @@ public class WifiStateMachine extends StateMachine {
		if (DBG) Log.d(TAG, getName() + "\n");
		EventLog.writeEvent(EVENTLOG_WIFI_STATE_CHANGED, getName());

		try {
		mNwService.enableIpv6(mInterfaceName);
		} catch (RemoteException re) {
		Log.e(TAG, "Failed to enable IPv6: " + re);
		} catch (IllegalStateException e) {
		Log.e(TAG, "Failed to enable IPv6: " + e);
		}

		if (!WifiConfigStore.isUsingStaticIp(mLastNetworkId)) {
		//start DHCP
		mDhcpStateMachine = DhcpStateMachine.makeDhcpStateMachine(