Merge "Remove most of the NetworkStack dependencies on frameworks/base." into sc-dev (46b8e082) · Commits · e / os / android_frameworks_base

services/net/Android.bp

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		@@ -37,15 +37,7 @@ java_library {
		name: "services.net-module-wifi",
		srcs: [
		":framework-services-net-module-wifi-shared-srcs",
		":net-module-utils-srcs",
		":net-utils-services-common-srcs",
		"java/android/net/ip/IpClientCallbacks.java",
		"java/android/net/ip/IpClientManager.java",
		"java/android/net/ip/IpClientUtil.java",
		"java/android/net/util/KeepalivePacketDataUtil.java",
		"java/android/net/util/NetworkConstants.java",
		"java/android/net/IpMemoryStore.java",
		"java/android/net/NetworkMonitorManager.java",
		],
		sdk_version: "module_current",
		min_sdk_version: "30",
		@@ -89,11 +81,7 @@ filegroup {
		filegroup {
		name: "services-connectivity-shared-srcs",
		srcs: [
		// TODO: move to networkstack-client
		"java/android/net/IpMemoryStore.java",
		"java/android/net/NetworkMonitorManager.java",
		// TODO: move to libs/net
		"java/android/net/util/KeepalivePacketDataUtil.java",
		"java/android/net/util/NetworkConstants.java",
		],
		}

services/net/java/android/net/IpMemoryStore.java

deleted100644 → 0

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		/*
		* Copyright (C) 2019 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.net;

		import android.annotation.NonNull;
		import android.content.Context;
		import android.net.networkstack.ModuleNetworkStackClient;
		import android.util.Log;

		import com.android.internal.annotations.VisibleForTesting;

		import java.util.concurrent.CompletableFuture;
		import java.util.concurrent.ExecutionException;
		import java.util.concurrent.atomic.AtomicReference;
		import java.util.function.Consumer;

		/**
		* Manager class used to communicate with the ip memory store service in the network stack,
		* which is running in a separate module.
		* @hide
		*/
		public class IpMemoryStore extends IpMemoryStoreClient {
		private static final String TAG = IpMemoryStore.class.getSimpleName();
		@NonNull private final CompletableFuture<IIpMemoryStore> mService;
		@NonNull private final AtomicReference<CompletableFuture<IIpMemoryStore>> mTailNode;

		public IpMemoryStore(@NonNull final Context context) {
		super(context);
		mService = new CompletableFuture<>();
		mTailNode = new AtomicReference<CompletableFuture<IIpMemoryStore>>(mService);
		getModuleNetworkStackClient(context).fetchIpMemoryStore(
		new IIpMemoryStoreCallbacks.Stub() {
		@Override
		public void onIpMemoryStoreFetched(@NonNull final IIpMemoryStore memoryStore) {
		mService.complete(memoryStore);
		}

		@Override
		public int getInterfaceVersion() {
		return this.VERSION;
		}

		@Override
		public String getInterfaceHash() {
		return this.HASH;
		}
		});
		}

		/*
		* If the IpMemoryStore is ready, this function will run the request synchronously.
		* Otherwise, it will enqueue the requests for execution immediately after the
		* service becomes ready. The requests are guaranteed to be executed in the order
		* they are sumbitted.
		*/
		@Override
		protected void runWhenServiceReady(Consumer<IIpMemoryStore> cb) throws ExecutionException {
		mTailNode.getAndUpdate(future -> future.handle((store, exception) -> {
		if (exception != null) {
		// this should never happens since we also catch the exception below
		Log.wtf(TAG, "Error fetching IpMemoryStore", exception);
		return store;
		}

		try {
		cb.accept(store);
		} catch (Exception e) {
		Log.wtf(TAG, "Exception occured: " + e.getMessage());
		}
		return store;
		}));
		}

		@VisibleForTesting
		protected ModuleNetworkStackClient getModuleNetworkStackClient(Context context) {
		return ModuleNetworkStackClient.getInstance(context);
		}

		/** Gets an instance of the memory store */
		@NonNull
		public static IpMemoryStore getMemoryStore(final Context context) {
		return new IpMemoryStore(context);
		}
		}

services/net/java/android/net/NetworkMonitorManager.java

deleted100644 → 0

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		/*
		* Copyright (C) 2019 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.net;

		import android.annotation.Hide;
		import android.annotation.NonNull;
		import android.os.Binder;
		import android.os.RemoteException;
		import android.util.Log;

		/**
		* A convenience wrapper for INetworkMonitor.
		*
		* Wraps INetworkMonitor calls, making them a bit more friendly to use. Currently handles:
		* - Clearing calling identity
		* - Ignoring RemoteExceptions
		* - Converting to stable parcelables
		*
		* By design, all methods on INetworkMonitor are asynchronous oneway IPCs and are thus void. All the
		* wrapper methods in this class return a boolean that callers can use to determine whether
		* RemoteException was thrown.
		*/
		@Hide
		public class NetworkMonitorManager {

		@NonNull private final INetworkMonitor mNetworkMonitor;
		@NonNull private final String mTag;

		public NetworkMonitorManager(@NonNull INetworkMonitor networkMonitorManager,
		@NonNull String tag) {
		mNetworkMonitor = networkMonitorManager;
		mTag = tag;
		}

		public NetworkMonitorManager(@NonNull INetworkMonitor networkMonitorManager) {
		this(networkMonitorManager, NetworkMonitorManager.class.getSimpleName());
		}

		private void log(String s, Throwable e) {
		Log.e(mTag, s, e);
		}

		// CHECKSTYLE:OFF Generated code

		public boolean start() {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.start();
		return true;
		} catch (RemoteException e) {
		log("Error in start", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean launchCaptivePortalApp() {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.launchCaptivePortalApp();
		return true;
		} catch (RemoteException e) {
		log("Error in launchCaptivePortalApp", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyCaptivePortalAppFinished(int response) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyCaptivePortalAppFinished(response);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyCaptivePortalAppFinished", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean setAcceptPartialConnectivity() {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.setAcceptPartialConnectivity();
		return true;
		} catch (RemoteException e) {
		log("Error in setAcceptPartialConnectivity", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean forceReevaluation(int uid) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.forceReevaluation(uid);
		return true;
		} catch (RemoteException e) {
		log("Error in forceReevaluation", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyPrivateDnsChanged(PrivateDnsConfigParcel config) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyPrivateDnsChanged(config);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyPrivateDnsChanged", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyDnsResponse(int returnCode) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyDnsResponse(returnCode);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyDnsResponse", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyNetworkConnected(LinkProperties lp, NetworkCapabilities nc) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyNetworkConnected(lp, nc);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyNetworkConnected", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyNetworkDisconnected() {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyNetworkDisconnected();
		return true;
		} catch (RemoteException e) {
		log("Error in notifyNetworkDisconnected", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyLinkPropertiesChanged(LinkProperties lp) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyLinkPropertiesChanged(lp);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyLinkPropertiesChanged", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		public boolean notifyNetworkCapabilitiesChanged(NetworkCapabilities nc) {
		final long token = Binder.clearCallingIdentity();
		try {
		mNetworkMonitor.notifyNetworkCapabilitiesChanged(nc);
		return true;
		} catch (RemoteException e) {
		log("Error in notifyNetworkCapabilitiesChanged", e);
		return false;
		} finally {
		Binder.restoreCallingIdentity(token);
		}
		}

		// CHECKSTYLE:ON Generated code
		}

services/net/java/android/net/ip/IpClientCallbacks.java

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		/*
		* Copyright (C) 2019 The Android Open Source Project
		*
		* Licensed under the Apache License, Version 2.0 (the "License");
		* you may not use this file except in compliance with the License.
		* You may obtain a copy of the License at
		*
		* http://www.apache.org/licenses/LICENSE-2.0
		*
		* Unless required by applicable law or agreed to in writing, software
		* distributed under the License is distributed on an "AS IS" BASIS,
		* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
		* See the License for the specific language governing permissions and
		* limitations under the License.
		*/

		package android.net.ip;

		import android.net.DhcpResultsParcelable;
		import android.net.Layer2PacketParcelable;
		import android.net.LinkProperties;

		import java.util.List;

		/**
		* Callbacks for handling IpClient events.
		*
		* This is a convenience class to allow clients not to override all methods of IIpClientCallbacks,
		* and avoid unparceling arguments.
		* These methods are called asynchronously on a Binder thread, as IpClient lives in a different
		* process.
		* @hide
		*/
		public class IpClientCallbacks {

		/**
		* Callback called upon IpClient creation.
		*
		* @param ipClient The Binder token to communicate with IpClient.
		*/
		public void onIpClientCreated(IIpClient ipClient) {}

		/**
		* Callback called prior to DHCP discovery/renewal.
		*
		* <p>In order to receive onPreDhcpAction(), call #withPreDhcpAction() when constructing a
		* ProvisioningConfiguration.
		*
		* <p>Implementations of onPreDhcpAction() must call IpClient#completedPreDhcpAction() to
		* indicate that DHCP is clear to proceed.
		*/
		public void onPreDhcpAction() {}

		/**
		* Callback called after DHCP discovery/renewal.
		*/
		public void onPostDhcpAction() {}

		/**
		* Callback called when new DHCP results are available.
		*
		* <p>This is purely advisory and not an indication of provisioning success or failure. This is
		* only here for callers that want to expose DHCPv4 results to other APIs
		* (e.g., WifiInfo#setInetAddress).
		*
		* <p>DHCPv4 or static IPv4 configuration failure or success can be determined by whether or not
		* the passed-in DhcpResults object is null.
		*/
		public void onNewDhcpResults(DhcpResultsParcelable dhcpResults) {
		// In general callbacks would not use a parcelable directly (DhcpResultsParcelable), and
		// would use a wrapper instead, because of the lack of safety of stable parcelables. But
		// there are already two classes in the tree for DHCP information: DhcpInfo and DhcpResults,
		// and neither of them exposes an appropriate API (they are bags of mutable fields and can't
		// be changed because they are public API and @UnsupportedAppUsage, being no better than the
		// stable parcelable). Adding a third class would cost more than the gain considering that
		// the only client of this callback is WiFi, which will end up converting the results to
		// DhcpInfo anyway.
		}

		/**
		* Indicates that provisioning was successful.
		*/
		public void onProvisioningSuccess(LinkProperties newLp) {}

		/**
		* Indicates that provisioning failed.
		*/
		public void onProvisioningFailure(LinkProperties newLp) {}

		/**
		* Invoked on LinkProperties changes.
		*/
		public void onLinkPropertiesChange(LinkProperties newLp) {}

		/**Called when the internal IpReachabilityMonitor (if enabled) has
		* detected the loss of a critical number of required neighbors.
		*/
		public void onReachabilityLost(String logMsg) {}

		/**
		* Called when the IpClient state machine terminates.
		*/
		public void onQuit() {}

		/**
		* Called to indicate that a new APF program must be installed to filter incoming packets.
		*/
		public void installPacketFilter(byte[] filter) {}

		/**
		* Called to indicate that the APF Program & data buffer must be read asynchronously from the
		* wifi driver.
		*
		* <p>Due to Wifi HAL limitations, the current implementation only supports dumping the entire
		* buffer. In response to this request, the driver returns the data buffer asynchronously
		* by sending an IpClient#EVENT_READ_PACKET_FILTER_COMPLETE message.
		*/
		public void startReadPacketFilter() {}

		/**
		* If multicast filtering cannot be accomplished with APF, this function will be called to
		* actuate multicast filtering using another means.
		*/
		public void setFallbackMulticastFilter(boolean enabled) {}

		/**
		* Enabled/disable Neighbor Discover offload functionality. This is called, for example,
		* whenever 464xlat is being started or stopped.
		*/
		public void setNeighborDiscoveryOffload(boolean enable) {}

		/**
		* Invoked on starting preconnection process.
		*/
		public void onPreconnectionStart(List<Layer2PacketParcelable> packets) {}
		}

services/net/java/android/net/ip/IpClientManager.java

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File deleted.

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