Merge "Minor changes to the async DNS query JAVA API"
diff --git a/core/java/android/net/ConnectivityManager.java b/core/java/android/net/ConnectivityManager.java
index 63ba00b..524077b 100644
--- a/core/java/android/net/ConnectivityManager.java
+++ b/core/java/android/net/ConnectivityManager.java
@@ -2681,12 +2681,39 @@
}
}
+ /** @hide */
+ @Retention(RetentionPolicy.SOURCE)
+ @IntDef(value = {
+ TETHER_ERROR_NO_ERROR,
+ TETHER_ERROR_PROVISION_FAILED,
+ TETHER_ERROR_ENTITLEMENT_UNKONWN,
+ })
+ public @interface EntitlementResultCode {
+ }
+
/**
- * Callback for use with {@link #getLatestTetheringEntitlementValue} to find out whether
+ * Callback for use with {@link #getLatestTetheringEntitlementResult} to find out whether
* entitlement succeeded.
* @hide
*/
@SystemApi
+ public interface OnTetheringEntitlementResultListener {
+ /**
+ * Called to notify entitlement result.
+ *
+ * @param resultCode an int value of entitlement result. It may be one of
+ * {@link #TETHER_ERROR_NO_ERROR},
+ * {@link #TETHER_ERROR_PROVISION_FAILED}, or
+ * {@link #TETHER_ERROR_ENTITLEMENT_UNKONWN}.
+ */
+ void onEntitlementResult(@EntitlementResultCode int resultCode);
+ }
+
+ /**
+ * @removed
+ * @deprecated This API would be removed when all of caller has been updated.
+ * */
+ @Deprecated
public abstract static class TetheringEntitlementValueListener {
/**
* Called to notify entitlement result.
@@ -2712,14 +2739,43 @@
* {@link #TETHERING_USB}, or
* {@link #TETHERING_BLUETOOTH}.
* @param showEntitlementUi a boolean indicating whether to run UI-based entitlement check.
- * @param listener an {@link TetheringEntitlementValueListener} which will be called to notify
- * the caller of the result of entitlement check. The listener may be called zero or
- * one time.
- * @param handler {@link Handler} to specify the thread upon which the listener will be invoked.
+ * @param executor the executor on which callback will be invoked.
+ * @param listener an {@link OnTetheringEntitlementResultListener} which will be called to
+ * notify the caller of the result of entitlement check. The listener may be called zero
+ * or one time.
* {@hide}
*/
@SystemApi
@RequiresPermission(android.Manifest.permission.TETHER_PRIVILEGED)
+ public void getLatestTetheringEntitlementResult(int type, boolean showEntitlementUi,
+ @NonNull @CallbackExecutor Executor executor,
+ @NonNull final OnTetheringEntitlementResultListener listener) {
+ Preconditions.checkNotNull(listener, "TetheringEntitlementResultListener cannot be null.");
+ ResultReceiver wrappedListener = new ResultReceiver(null) {
+ @Override
+ protected void onReceiveResult(int resultCode, Bundle resultData) {
+ Binder.withCleanCallingIdentity(() ->
+ executor.execute(() -> {
+ listener.onEntitlementResult(resultCode);
+ }));
+ }
+ };
+
+ try {
+ String pkgName = mContext.getOpPackageName();
+ Log.i(TAG, "getLatestTetheringEntitlementResult:" + pkgName);
+ mService.getLatestTetheringEntitlementResult(type, wrappedListener,
+ showEntitlementUi, pkgName);
+ } catch (RemoteException e) {
+ throw e.rethrowFromSystemServer();
+ }
+ }
+
+ /**
+ * @removed
+ * @deprecated This API would be removed when all of caller has been updated.
+ * */
+ @Deprecated
public void getLatestTetheringEntitlementValue(int type, boolean showEntitlementUi,
@NonNull final TetheringEntitlementValueListener listener, @Nullable Handler handler) {
Preconditions.checkNotNull(listener, "TetheringEntitlementValueListener cannot be null.");
@@ -2733,7 +2789,7 @@
try {
String pkgName = mContext.getOpPackageName();
Log.i(TAG, "getLatestTetheringEntitlementValue:" + pkgName);
- mService.getLatestTetheringEntitlementValue(type, wrappedListener,
+ mService.getLatestTetheringEntitlementResult(type, wrappedListener,
showEntitlementUi, pkgName);
} catch (RemoteException e) {
throw e.rethrowFromSystemServer();
diff --git a/core/java/android/net/IConnectivityManager.aidl b/core/java/android/net/IConnectivityManager.aidl
index 2f03734..ad903d9 100644
--- a/core/java/android/net/IConnectivityManager.aidl
+++ b/core/java/android/net/IConnectivityManager.aidl
@@ -212,6 +212,6 @@
boolean isCallerCurrentAlwaysOnVpnApp();
boolean isCallerCurrentAlwaysOnVpnLockdownApp();
- void getLatestTetheringEntitlementValue(int type, in ResultReceiver receiver,
+ void getLatestTetheringEntitlementResult(int type, in ResultReceiver receiver,
boolean showEntitlementUi, String callerPkg);
}
diff --git a/core/java/android/net/TestNetworkInterface.java b/core/java/android/net/TestNetworkInterface.java
new file mode 100644
index 0000000..30e68f5
--- /dev/null
+++ b/core/java/android/net/TestNetworkInterface.java
@@ -0,0 +1,74 @@
+/*
+ * 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.TestApi;
+import android.os.Parcel;
+import android.os.ParcelFileDescriptor;
+import android.os.Parcelable;
+
+/**
+ * This class is used to return the interface name and fd of the test interface
+ *
+ * @hide
+ */
+@TestApi
+public final class TestNetworkInterface implements Parcelable {
+ private static final String TAG = "TestNetworkInterface";
+
+ private final ParcelFileDescriptor mFileDescriptor;
+ private final String mInterfaceName;
+
+ @Override
+ public int describeContents() {
+ return (mFileDescriptor != null) ? Parcelable.CONTENTS_FILE_DESCRIPTOR : 0;
+ }
+
+ @Override
+ public void writeToParcel(Parcel out, int flags) {
+ out.writeParcelable(mFileDescriptor, PARCELABLE_WRITE_RETURN_VALUE);
+ out.writeString(mInterfaceName);
+ }
+
+ public TestNetworkInterface(ParcelFileDescriptor pfd, String intf) {
+ mFileDescriptor = pfd;
+ mInterfaceName = intf;
+ }
+
+ private TestNetworkInterface(Parcel in) {
+ mFileDescriptor = in.readParcelable(ParcelFileDescriptor.class.getClassLoader());
+ mInterfaceName = in.readString();
+ }
+
+ public ParcelFileDescriptor getFileDescriptor() {
+ return mFileDescriptor;
+ }
+
+ public String getInterfaceName() {
+ return mInterfaceName;
+ }
+
+ public static final Parcelable.Creator<TestNetworkInterface> CREATOR =
+ new Parcelable.Creator<TestNetworkInterface>() {
+ public TestNetworkInterface createFromParcel(Parcel in) {
+ return new TestNetworkInterface(in);
+ }
+
+ public TestNetworkInterface[] newArray(int size) {
+ return new TestNetworkInterface[size];
+ }
+ };
+}
diff --git a/core/java/android/net/TestNetworkManager.java b/core/java/android/net/TestNetworkManager.java
new file mode 100644
index 0000000..cd58e66
--- /dev/null
+++ b/core/java/android/net/TestNetworkManager.java
@@ -0,0 +1,91 @@
+/*
+ * Copyright (C) 2018 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.annotation.TestApi;
+import android.content.Context;
+import android.os.IBinder;
+import android.os.RemoteException;
+
+import com.android.internal.util.Preconditions;
+
+/**
+ * Class that allows creation and management of per-app, test-only networks
+ *
+ * @hide
+ */
+@TestApi
+public class TestNetworkManager {
+ @NonNull private static final String TAG = TestNetworkManager.class.getSimpleName();
+
+ @NonNull private final ITestNetworkManager mService;
+ @NonNull private final Context mContext;
+
+ /** @hide */
+ public TestNetworkManager(@NonNull Context context, @NonNull ITestNetworkManager service) {
+ mContext = Preconditions.checkNotNull(context, "missing Context");
+ mService = Preconditions.checkNotNull(service, "missing ITestNetworkManager");
+ }
+
+ /**
+ * Teardown the capability-limited, testing-only network for a given interface
+ *
+ * @param network The test network that should be torn down
+ * @hide
+ */
+ @TestApi
+ public void teardownTestNetwork(@NonNull Network network) {
+ try {
+ mService.teardownTestNetwork(network.netId);
+ } catch (RemoteException e) {
+ throw e.rethrowFromSystemServer();
+ }
+ }
+
+ /**
+ * Sets up a capability-limited, testing-only network for a given interface
+ *
+ * @param iface the name of the interface to be used for the Network LinkProperties.
+ * @param binder A binder object guarding the lifecycle of this test network.
+ * @hide
+ */
+ @TestApi
+ public void setupTestNetwork(@NonNull String iface, @NonNull IBinder binder) {
+ try {
+ mService.setupTestNetwork(iface, binder);
+ } catch (RemoteException e) {
+ throw e.rethrowFromSystemServer();
+ }
+ }
+
+ /**
+ * Create a tun interface for testing purposes
+ *
+ * @param linkAddrs an array of LinkAddresses to assign to the TUN interface
+ * @return A ParcelFileDescriptor of the underlying TUN interface. Close this to tear down the
+ * TUN interface.
+ * @hide
+ */
+ @TestApi
+ public TestNetworkInterface createTunInterface(@NonNull LinkAddress[] linkAddrs) {
+ try {
+ return mService.createTunInterface(linkAddrs);
+ } catch (RemoteException e) {
+ throw e.rethrowFromSystemServer();
+ }
+ }
+}
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index ac71ae5..8390263 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -3758,10 +3758,10 @@
* if it's really needed.
*/
@Override
- public void getLatestTetheringEntitlementValue(int type, ResultReceiver receiver,
+ public void getLatestTetheringEntitlementResult(int type, ResultReceiver receiver,
boolean showEntitlementUi, String callerPkg) {
ConnectivityManager.enforceTetherChangePermission(mContext, callerPkg);
- mTethering.getLatestTetheringEntitlementValue(type, receiver, showEntitlementUi);
+ mTethering.getLatestTetheringEntitlementResult(type, receiver, showEntitlementUi);
}
// Called when we lose the default network and have no replacement yet.
diff --git a/services/core/java/com/android/server/TestNetworkService.java b/services/core/java/com/android/server/TestNetworkService.java
new file mode 100644
index 0000000..e64ab78
--- /dev/null
+++ b/services/core/java/com/android/server/TestNetworkService.java
@@ -0,0 +1,338 @@
+/*
+ * Copyright (C) 2018 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 com.android.server;
+
+import static com.android.internal.util.Preconditions.checkNotNull;
+
+import android.annotation.NonNull;
+import android.content.Context;
+import android.net.ConnectivityManager;
+import android.net.INetd;
+import android.net.ITestNetworkManager;
+import android.net.IpPrefix;
+import android.net.LinkAddress;
+import android.net.LinkProperties;
+import android.net.NetworkAgent;
+import android.net.NetworkCapabilities;
+import android.net.NetworkInfo;
+import android.net.NetworkInfo.DetailedState;
+import android.net.RouteInfo;
+import android.net.StringNetworkSpecifier;
+import android.net.TestNetworkInterface;
+import android.net.util.NetdService;
+import android.os.Binder;
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.IBinder;
+import android.os.INetworkManagementService;
+import android.os.Looper;
+import android.os.ParcelFileDescriptor;
+import android.os.RemoteException;
+import android.util.SparseArray;
+
+import com.android.internal.annotations.GuardedBy;
+import com.android.internal.annotations.VisibleForTesting;
+
+import java.io.UncheckedIOException;
+import java.net.Inet4Address;
+import java.net.Inet6Address;
+import java.net.InterfaceAddress;
+import java.net.NetworkInterface;
+import java.net.SocketException;
+import java.util.concurrent.atomic.AtomicInteger;
+
+/** @hide */
+class TestNetworkService extends ITestNetworkManager.Stub {
+ @NonNull private static final String TAG = TestNetworkService.class.getSimpleName();
+ @NonNull private static final String TEST_NETWORK_TYPE = "TEST_NETWORK";
+ @NonNull private static final String TEST_TUN_PREFIX = "testtun";
+ @NonNull private static final AtomicInteger sTestTunIndex = new AtomicInteger();
+
+ @NonNull private final Context mContext;
+ @NonNull private final INetworkManagementService mNMS;
+ @NonNull private final INetd mNetd;
+
+ @NonNull private final HandlerThread mHandlerThread;
+ @NonNull private final Handler mHandler;
+
+ // Native method stubs
+ private static native int jniCreateTun(@NonNull String iface);
+
+ @VisibleForTesting
+ protected TestNetworkService(
+ @NonNull Context context, @NonNull INetworkManagementService netManager) {
+ mHandlerThread = new HandlerThread("TestNetworkServiceThread");
+ mHandlerThread.start();
+ mHandler = new Handler(mHandlerThread.getLooper());
+
+ mContext = checkNotNull(context, "missing Context");
+ mNMS = checkNotNull(netManager, "missing INetworkManagementService");
+ mNetd = checkNotNull(NetdService.getInstance(), "could not get netd instance");
+ }
+
+ /**
+ * Create a TUN interface with the given interface name and link addresses
+ *
+ * <p>This method will return the FileDescriptor to the TUN interface. Close it to tear down the
+ * TUN interface.
+ */
+ @Override
+ public TestNetworkInterface createTunInterface(@NonNull LinkAddress[] linkAddrs) {
+ enforceTestNetworkPermissions(mContext);
+
+ checkNotNull(linkAddrs, "missing linkAddrs");
+
+ String iface = TEST_TUN_PREFIX + sTestTunIndex.getAndIncrement();
+ return Binder.withCleanCallingIdentity(
+ () -> {
+ try {
+ ParcelFileDescriptor tunIntf =
+ ParcelFileDescriptor.adoptFd(jniCreateTun(iface));
+ for (LinkAddress addr : linkAddrs) {
+ mNetd.interfaceAddAddress(
+ iface,
+ addr.getAddress().getHostAddress(),
+ addr.getPrefixLength());
+ }
+
+ return new TestNetworkInterface(tunIntf, iface);
+ } catch (RemoteException e) {
+ throw e.rethrowFromSystemServer();
+ }
+ });
+ }
+
+ // Tracker for TestNetworkAgents
+ @GuardedBy("mTestNetworkTracker")
+ @NonNull
+ private final SparseArray<TestNetworkAgent> mTestNetworkTracker = new SparseArray<>();
+
+ public class TestNetworkAgent extends NetworkAgent implements IBinder.DeathRecipient {
+ private static final int NETWORK_SCORE = 1; // Use a low, non-zero score.
+
+ private final int mUid;
+ @NonNull private final NetworkInfo mNi;
+ @NonNull private final NetworkCapabilities mNc;
+ @NonNull private final LinkProperties mLp;
+
+ @GuardedBy("mBinderLock")
+ @NonNull
+ private IBinder mBinder;
+
+ @NonNull private final Object mBinderLock = new Object();
+
+ private TestNetworkAgent(
+ @NonNull Looper looper,
+ @NonNull Context context,
+ @NonNull NetworkInfo ni,
+ @NonNull NetworkCapabilities nc,
+ @NonNull LinkProperties lp,
+ int uid,
+ @NonNull IBinder binder)
+ throws RemoteException {
+ super(looper, context, TEST_NETWORK_TYPE, ni, nc, lp, NETWORK_SCORE);
+
+ mUid = uid;
+ mNi = ni;
+ mNc = nc;
+ mLp = lp;
+
+ synchronized (mBinderLock) {
+ mBinder = binder; // Binder null-checks in create()
+
+ try {
+ mBinder.linkToDeath(this, 0);
+ } catch (RemoteException e) {
+ binderDied();
+ throw e; // Abort, signal failure up the stack.
+ }
+ }
+ }
+
+ /**
+ * If the Binder object dies, this function is called to free the resources of this
+ * TestNetworkAgent
+ */
+ @Override
+ public void binderDied() {
+ teardown();
+ }
+
+ @Override
+ protected void unwanted() {
+ teardown();
+ }
+
+ private void teardown() {
+ mNi.setDetailedState(DetailedState.DISCONNECTED, null, null);
+ mNi.setIsAvailable(false);
+ sendNetworkInfo(mNi);
+
+ // Synchronize on mBinderLock to ensure that unlinkToDeath is never called more than
+ // once (otherwise it could throw an exception)
+ synchronized (mBinderLock) {
+ // If mBinder is null, this Test Network has already been cleaned up.
+ if (mBinder == null) return;
+ mBinder.unlinkToDeath(this, 0);
+ mBinder = null;
+ }
+
+ // Has to be in TestNetworkAgent to ensure all teardown codepaths properly clean up
+ // resources, even for binder death or unwanted calls.
+ synchronized (mTestNetworkTracker) {
+ mTestNetworkTracker.remove(netId);
+ }
+ }
+ }
+
+ private TestNetworkAgent registerTestNetworkAgent(
+ @NonNull Looper looper,
+ @NonNull Context context,
+ @NonNull String iface,
+ int callingUid,
+ @NonNull IBinder binder)
+ throws RemoteException, SocketException {
+ checkNotNull(looper, "missing Looper");
+ checkNotNull(context, "missing Context");
+ // iface and binder validity checked by caller
+
+ // Build network info with special testing type
+ NetworkInfo ni = new NetworkInfo(ConnectivityManager.TYPE_TEST, 0, TEST_NETWORK_TYPE, "");
+ ni.setDetailedState(DetailedState.CONNECTED, null, null);
+ ni.setIsAvailable(true);
+
+ // Build narrow set of NetworkCapabilities, useful only for testing
+ NetworkCapabilities nc = new NetworkCapabilities();
+ nc.clearAll(); // Remove default capabilities.
+ nc.addTransportType(NetworkCapabilities.TRANSPORT_TEST);
+ nc.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_SUSPENDED);
+ nc.addCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED);
+ nc.setNetworkSpecifier(new StringNetworkSpecifier(iface));
+
+ // Build LinkProperties
+ LinkProperties lp = new LinkProperties();
+ lp.setInterfaceName(iface);
+
+ // Find the currently assigned addresses, and add them to LinkProperties
+ boolean allowIPv4 = false, allowIPv6 = false;
+ NetworkInterface netIntf = NetworkInterface.getByName(iface);
+ checkNotNull(netIntf, "No such network interface found: " + netIntf);
+
+ for (InterfaceAddress intfAddr : netIntf.getInterfaceAddresses()) {
+ lp.addLinkAddress(
+ new LinkAddress(intfAddr.getAddress(), intfAddr.getNetworkPrefixLength()));
+
+ if (intfAddr.getAddress() instanceof Inet6Address) {
+ allowIPv6 |= !intfAddr.getAddress().isLinkLocalAddress();
+ } else if (intfAddr.getAddress() instanceof Inet4Address) {
+ allowIPv4 = true;
+ }
+ }
+
+ // Add global routes (but as non-default, non-internet providing network)
+ if (allowIPv4) {
+ lp.addRoute(new RouteInfo(new IpPrefix(Inet4Address.ANY, 0), null, iface));
+ }
+ if (allowIPv6) {
+ lp.addRoute(new RouteInfo(new IpPrefix(Inet6Address.ANY, 0), null, iface));
+ }
+
+ return new TestNetworkAgent(looper, context, ni, nc, lp, callingUid, binder);
+ }
+
+ /**
+ * Sets up a Network with extremely limited privileges, guarded by the MANAGE_TEST_NETWORKS
+ * permission.
+ *
+ * <p>This method provides a Network that is useful only for testing.
+ */
+ @Override
+ public void setupTestNetwork(@NonNull String iface, @NonNull IBinder binder) {
+ enforceTestNetworkPermissions(mContext);
+
+ checkNotNull(iface, "missing Iface");
+ checkNotNull(binder, "missing IBinder");
+
+ if (!(iface.startsWith(INetd.IPSEC_INTERFACE_PREFIX)
+ || iface.startsWith(TEST_TUN_PREFIX))) {
+ throw new IllegalArgumentException(
+ "Cannot create network for non ipsec, non-testtun interface");
+ }
+
+ // Setup needs to be done with NETWORK_STACK privileges.
+ int callingUid = Binder.getCallingUid();
+ Binder.withCleanCallingIdentity(
+ () -> {
+ try {
+ mNMS.setInterfaceUp(iface);
+
+ // Synchronize all accesses to mTestNetworkTracker to prevent the case
+ // where:
+ // 1. TestNetworkAgent successfully binds to death of binder
+ // 2. Before it is added to the mTestNetworkTracker, binder dies,
+ // binderDied() is called (on a different thread)
+ // 3. This thread is pre-empted, put() is called after remove()
+ synchronized (mTestNetworkTracker) {
+ TestNetworkAgent agent =
+ registerTestNetworkAgent(
+ mHandler.getLooper(),
+ mContext,
+ iface,
+ callingUid,
+ binder);
+
+ mTestNetworkTracker.put(agent.netId, agent);
+ }
+ } catch (SocketException e) {
+ throw new UncheckedIOException(e);
+ } catch (RemoteException e) {
+ throw e.rethrowFromSystemServer();
+ }
+ });
+ }
+
+ /** Teardown a test network */
+ @Override
+ public void teardownTestNetwork(int netId) {
+ enforceTestNetworkPermissions(mContext);
+
+ TestNetworkAgent agent;
+ synchronized (mTestNetworkTracker) {
+ agent = mTestNetworkTracker.get(netId);
+ }
+
+ if (agent == null) {
+ return; // Already torn down
+ } else if (agent.mUid != Binder.getCallingUid()) {
+ throw new SecurityException("Attempted to modify other user's test networks");
+ }
+
+ // Safe to be called multiple times.
+ agent.teardown();
+ }
+
+ // STOPSHIP: Change this back to android.Manifest.permission.MANAGE_TEST_NETWORKS
+ private static final String PERMISSION_NAME = "dummy";
+
+ public static void enforceTestNetworkPermissions(@NonNull Context context) {
+ // STOPSHIP: Re-enable these checks. Disabled until adoptShellPermissionIdentity() can be
+ // called from CTS test code.
+ if (false) {
+ context.enforceCallingOrSelfPermission(PERMISSION_NAME, "TestNetworkService");
+ }
+ }
+}
diff --git a/services/core/jni/com_android_server_TestNetworkService.cpp b/services/core/jni/com_android_server_TestNetworkService.cpp
new file mode 100644
index 0000000..b90ff23
--- /dev/null
+++ b/services/core/jni/com_android_server_TestNetworkService.cpp
@@ -0,0 +1,107 @@
+/*
+ * Copyright (C) 2018 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.
+ */
+
+#define LOG_NDEBUG 0
+
+#define LOG_TAG "TestNetworkServiceJni"
+
+#include <arpa/inet.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <linux/if.h>
+#include <linux/if_tun.h>
+#include <linux/ipv6_route.h>
+#include <linux/route.h>
+#include <netinet/in.h>
+#include <stdio.h>
+#include <string.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+#include <sys/stat.h>
+#include <sys/types.h>
+
+#include <log/log.h>
+
+#include "netutils/ifc.h"
+
+#include "jni.h"
+#include <android-base/stringprintf.h>
+#include <android-base/unique_fd.h>
+#include <nativehelper/JNIHelp.h>
+#include <nativehelper/ScopedUtfChars.h>
+
+namespace android {
+
+//------------------------------------------------------------------------------
+
+static void throwException(JNIEnv* env, int error, const char* action, const char* iface) {
+ const std::string& msg =
+ android::base::StringPrintf("Error %s %s: %s", action, iface, strerror(error));
+
+ jniThrowException(env, "java/lang/IllegalStateException", msg.c_str());
+}
+
+static int createTunInterface(JNIEnv* env, const char* iface) {
+ base::unique_fd tun(open("/dev/tun", O_RDWR | O_NONBLOCK));
+ ifreq ifr{};
+
+ // Allocate interface.
+ ifr.ifr_flags = IFF_TUN | IFF_NO_PI;
+ strlcpy(ifr.ifr_name, iface, IFNAMSIZ);
+ if (ioctl(tun.get(), TUNSETIFF, &ifr)) {
+ throwException(env, errno, "allocating", ifr.ifr_name);
+ return -1;
+ }
+
+ // Activate interface using an unconnected datagram socket.
+ base::unique_fd inet6CtrlSock(socket(AF_INET6, SOCK_DGRAM, 0));
+ ifr.ifr_flags = IFF_UP;
+
+ if (ioctl(inet6CtrlSock.get(), SIOCSIFFLAGS, &ifr)) {
+ throwException(env, errno, "activating", ifr.ifr_name);
+ return -1;
+ }
+
+ return tun.release();
+}
+
+//------------------------------------------------------------------------------
+
+static jint create(JNIEnv* env, jobject /* thiz */, jstring jIface) {
+ ScopedUtfChars iface(env, jIface);
+ if (!iface.c_str()) {
+ jniThrowNullPointerException(env, "iface");
+ return -1;
+ }
+
+ int tun = createTunInterface(env, iface.c_str());
+
+ // Any exceptions will be thrown from the createTunInterface call
+ return tun;
+}
+
+//------------------------------------------------------------------------------
+
+static const JNINativeMethod gMethods[] = {
+ {"jniCreateTun", "(Ljava/lang/String;)I", (void*)create},
+};
+
+int register_android_server_TestNetworkService(JNIEnv* env) {
+ return jniRegisterNativeMethods(env, "com/android/server/TestNetworkService", gMethods,
+ NELEM(gMethods));
+}
+
+}; // namespace android