Add tests for the PacketKeepalive API.
This currently fails in many different ways, but it tells us what
to fix.
Bug: 22606153
Bug: 23884210
Change-Id: If2e5ee0a8d7b26cad67d3d566ed5b1383e0db096
diff --git a/services/core/java/com/android/server/ConnectivityService.java b/services/core/java/com/android/server/ConnectivityService.java
index b888698..d1e1683 100644
--- a/services/core/java/com/android/server/ConnectivityService.java
+++ b/services/core/java/com/android/server/ConnectivityService.java
@@ -1466,7 +1466,7 @@
}
private void enforceKeepalivePermission() {
- mContext.enforceCallingPermission(KeepaliveTracker.PERMISSION, "ConnectivityService");
+ mContext.enforceCallingOrSelfPermission(KeepaliveTracker.PERMISSION, "ConnectivityService");
}
public void sendConnectedBroadcast(NetworkInfo info) {
diff --git a/services/tests/servicestests/AndroidManifest.xml b/services/tests/servicestests/AndroidManifest.xml
index 919293a..8bb20a6 100644
--- a/services/tests/servicestests/AndroidManifest.xml
+++ b/services/tests/servicestests/AndroidManifest.xml
@@ -39,6 +39,7 @@
<uses-permission android:name="android.permission.MODIFY_PHONE_STATE" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE" />
+ <uses-permission android:name="android.permission.PACKET_KEEPALIVE_OFFLOAD" />
<application>
<uses-library android:name="android.test.runner" />
diff --git a/services/tests/servicestests/src/com/android/server/ConnectivityServiceTest.java b/services/tests/servicestests/src/com/android/server/ConnectivityServiceTest.java
index 3160f66..97e16da 100644
--- a/services/tests/servicestests/src/com/android/server/ConnectivityServiceTest.java
+++ b/services/tests/servicestests/src/com/android/server/ConnectivityServiceTest.java
@@ -32,8 +32,12 @@
import android.content.IntentFilter;
import android.net.ConnectivityManager;
import android.net.ConnectivityManager.NetworkCallback;
+import android.net.ConnectivityManager.PacketKeepalive;
+import android.net.ConnectivityManager.PacketKeepaliveCallback;
import android.net.INetworkPolicyManager;
import android.net.INetworkStatsService;
+import android.net.IpPrefix;
+import android.net.LinkAddress;
import android.net.LinkProperties;
import android.net.Network;
import android.net.NetworkAgent;
@@ -50,6 +54,7 @@
import android.os.HandlerThread;
import android.os.INetworkManagementService;
import android.os.Looper;
+import android.os.Message;
import android.os.MessageQueue;
import android.os.MessageQueue.IdleHandler;
import android.test.AndroidTestCase;
@@ -62,6 +67,7 @@
import java.net.InetAddress;
import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.LinkedBlockingQueue;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
@@ -190,6 +196,9 @@
private final ConditionVariable mDisconnected = new ConditionVariable();
private int mScore;
private NetworkAgent mNetworkAgent;
+ private int mStartKeepaliveError = PacketKeepalive.ERROR_HARDWARE_UNSUPPORTED;
+ private int mStopKeepaliveError = PacketKeepalive.NO_KEEPALIVE;
+ private Integer mExpectedKeepaliveSlot = null;
MockNetworkAgent(int transport) {
final int type = transportToLegacyType(transport);
@@ -212,7 +221,22 @@
mNetworkAgent = new NetworkAgent(mHandlerThread.getLooper(), mServiceContext,
"Mock-" + typeName, mNetworkInfo, mNetworkCapabilities,
new LinkProperties(), mScore, new NetworkMisc()) {
+ @Override
public void unwanted() { mDisconnected.open(); }
+
+ @Override
+ public void startPacketKeepalive(Message msg) {
+ int slot = msg.arg1;
+ if (mExpectedKeepaliveSlot != null) {
+ assertEquals((int) mExpectedKeepaliveSlot, slot);
+ }
+ onPacketKeepaliveEvent(slot, mStartKeepaliveError);
+ }
+
+ @Override
+ public void stopPacketKeepalive(Message msg) {
+ onPacketKeepaliveEvent(msg.arg1, mStopKeepaliveError);
+ }
};
// Waits for the NetworkAgent to be registered, which includes the creation of the
// NetworkMonitor.
@@ -312,6 +336,22 @@
public WrappedNetworkMonitor getWrappedNetworkMonitor() {
return mWrappedNetworkMonitor;
}
+
+ public void sendLinkProperties(LinkProperties lp) {
+ mNetworkAgent.sendLinkProperties(lp);
+ }
+
+ public void setStartKeepaliveError(int error) {
+ mStartKeepaliveError = error;
+ }
+
+ public void setStopKeepaliveError(int error) {
+ mStopKeepaliveError = error;
+ }
+
+ public void setExpectedKeepaliveSlot(Integer slot) {
+ mExpectedKeepaliveSlot = slot;
+ }
}
/**
@@ -1250,4 +1290,212 @@
mCm.reportNetworkConnectivity(mWiFiNetworkAgent.getNetwork(), false);
validatedCallback.expectCallback(CallbackState.LOST);
}
+
+ private static class TestKeepaliveCallback extends PacketKeepaliveCallback {
+
+ public static enum CallbackType { ON_STARTED, ON_STOPPED, ON_ERROR };
+
+ private class CallbackValue {
+ public CallbackType callbackType;
+ public int error;
+
+ public CallbackValue(CallbackType type) {
+ this.callbackType = type;
+ this.error = PacketKeepalive.SUCCESS;
+ assertTrue("onError callback must have error", type != CallbackType.ON_ERROR);
+ }
+
+ public CallbackValue(CallbackType type, int error) {
+ this.callbackType = type;
+ this.error = error;
+ assertEquals("error can only be set for onError", type, CallbackType.ON_ERROR);
+ }
+
+ @Override
+ public boolean equals(Object o) {
+ return o instanceof CallbackValue &&
+ this.callbackType == ((CallbackValue) o).callbackType &&
+ this.error == ((CallbackValue) o).error;
+ }
+
+ @Override
+ public String toString() {
+ return String.format("%s(%s, %d)", getClass().getSimpleName(), callbackType, error);
+ }
+ }
+
+ private LinkedBlockingQueue<CallbackValue> mCallbacks = new LinkedBlockingQueue<>();
+
+ @Override
+ public void onStarted() {
+ mCallbacks.add(new CallbackValue(CallbackType.ON_STARTED));
+ }
+
+ @Override
+ public void onStopped() {
+ mCallbacks.add(new CallbackValue(CallbackType.ON_STOPPED));
+ }
+
+ @Override
+ public void onError(int error) {
+ mCallbacks.add(new CallbackValue(CallbackType.ON_ERROR, error));
+ }
+
+ private void expectCallback(CallbackValue callbackValue) {
+ try {
+ assertEquals(
+ callbackValue,
+ mCallbacks.poll(TIMEOUT_MS, TimeUnit.MILLISECONDS));
+ } catch (InterruptedException e) {
+ fail(callbackValue.callbackType + " callback not seen after " + TIMEOUT_MS + " ms");
+ }
+ }
+
+ public void expectStarted() {
+ expectCallback(new CallbackValue(CallbackType.ON_STARTED));
+ }
+
+ public void expectStopped() {
+ expectCallback(new CallbackValue(CallbackType.ON_STOPPED));
+ }
+
+ public void expectError(int error) {
+ expectCallback(new CallbackValue(CallbackType.ON_ERROR, error));
+ }
+ }
+
+ private Network connectKeepaliveNetwork(LinkProperties lp) {
+ // Ensure the network is disconnected before we do anything.
+ if (mWiFiNetworkAgent != null) {
+ assertNull(mCm.getNetworkCapabilities(mWiFiNetworkAgent.getNetwork()));
+ }
+
+ mWiFiNetworkAgent = new MockNetworkAgent(TRANSPORT_WIFI);
+ ConditionVariable cv = waitForConnectivityBroadcasts(1);
+ mWiFiNetworkAgent.connect(true);
+ waitFor(cv);
+ verifyActiveNetwork(TRANSPORT_WIFI);
+ mWiFiNetworkAgent.sendLinkProperties(lp);
+ mService.waitForIdle();
+ return mWiFiNetworkAgent.getNetwork();
+ }
+
+ public void testPacketKeepalives() throws Exception {
+ InetAddress myIPv4 = InetAddress.getByName("192.0.2.129");
+ InetAddress notMyIPv4 = InetAddress.getByName("192.0.2.35");
+ InetAddress myIPv6 = InetAddress.getByName("2001:db8::1");
+ InetAddress dstIPv4 = InetAddress.getByName("8.8.8.8");
+ InetAddress dstIPv6 = InetAddress.getByName("2001:4860:4860::8888");
+
+ LinkProperties lp = new LinkProperties();
+ lp.setInterfaceName("wlan12");
+ lp.addLinkAddress(new LinkAddress(myIPv6, 64));
+ lp.addLinkAddress(new LinkAddress(myIPv4, 25));
+ lp.addRoute(new RouteInfo(InetAddress.getByName("fe80::1234")));
+ lp.addRoute(new RouteInfo(InetAddress.getByName("192.0.2.254")));
+
+ Network notMyNet = new Network(61234);
+ Network myNet = connectKeepaliveNetwork(lp);
+
+ TestKeepaliveCallback callback = new TestKeepaliveCallback();
+ PacketKeepalive ka;
+
+ // Attempt to start keepalives with invalid parameters and check for errors.
+ ka = mCm.startNattKeepalive(notMyNet, 25, callback, myIPv4, 1234, dstIPv4);
+ callback.expectError(PacketKeepalive.ERROR_INVALID_NETWORK);
+
+ ka = mCm.startNattKeepalive(myNet, 19, callback, notMyIPv4, 1234, dstIPv4);
+ callback.expectError(PacketKeepalive.ERROR_INVALID_INTERVAL);
+
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 1234, dstIPv6);
+ callback.expectError(PacketKeepalive.ERROR_INVALID_IP_ADDRESS);
+
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv6, 1234, dstIPv4);
+ callback.expectError(PacketKeepalive.ERROR_INVALID_IP_ADDRESS);
+
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv6, 1234, dstIPv6);
+ callback.expectError(PacketKeepalive.ERROR_INVALID_IP_ADDRESS); // NAT-T is IPv4-only.
+
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 123456, dstIPv4);
+ callback.expectError(PacketKeepalive.ERROR_INVALID_PORT);
+
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 123456, dstIPv4);
+ callback.expectError(PacketKeepalive.ERROR_INVALID_PORT);
+
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 12345, dstIPv4);
+ callback.expectError(PacketKeepalive.ERROR_HARDWARE_UNSUPPORTED);
+
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 12345, dstIPv4);
+ callback.expectError(PacketKeepalive.ERROR_HARDWARE_UNSUPPORTED);
+
+ // Check that a started keepalive can be stopped.
+ mWiFiNetworkAgent.setStartKeepaliveError(PacketKeepalive.SUCCESS);
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 12345, dstIPv4);
+ callback.expectStarted();
+ mWiFiNetworkAgent.setStopKeepaliveError(PacketKeepalive.SUCCESS);
+ ka.stop();
+ callback.expectStopped();
+
+ // Check that deleting the IP address stops the keepalive.
+ LinkProperties bogusLp = new LinkProperties(lp);
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 12345, dstIPv4);
+ callback.expectStarted();
+ bogusLp.removeLinkAddress(new LinkAddress(myIPv4, 25));
+ bogusLp.addLinkAddress(new LinkAddress(notMyIPv4, 25));
+ mWiFiNetworkAgent.sendLinkProperties(bogusLp);
+ callback.expectError(PacketKeepalive.ERROR_INVALID_IP_ADDRESS);
+ mWiFiNetworkAgent.sendLinkProperties(lp);
+
+ // Check that a started keepalive is stopped correctly when the network disconnects.
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 12345, dstIPv4);
+ callback.expectStarted();
+ mWiFiNetworkAgent.disconnect();
+ callback.expectError(PacketKeepalive.ERROR_INVALID_NETWORK);
+
+ // ... and that stopping it after that has no adverse effects.
+ assertNull(mCm.getNetworkCapabilities(myNet));
+ ka.stop();
+
+ // Reconnect.
+ myNet = connectKeepaliveNetwork(lp);
+ mWiFiNetworkAgent.setStartKeepaliveError(PacketKeepalive.SUCCESS);
+
+ // Check things work as expected when the keepalive is stopped and the network disconnects.
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 12345, dstIPv4);
+ callback.expectStarted();
+ ka.stop();
+ mWiFiNetworkAgent.disconnect();
+ mService.waitForIdle();
+ callback.expectStopped();
+
+ // Reconnect.
+ myNet = connectKeepaliveNetwork(lp);
+ mWiFiNetworkAgent.setStartKeepaliveError(PacketKeepalive.SUCCESS);
+
+ // Check that keepalive slots start from 1 and increment. The first one gets slot 1.
+ mWiFiNetworkAgent.setExpectedKeepaliveSlot(1);
+ ka = mCm.startNattKeepalive(myNet, 25, callback, myIPv4, 12345, dstIPv4);
+ callback.expectStarted();
+
+ // The second one gets slot 2.
+ mWiFiNetworkAgent.setExpectedKeepaliveSlot(2);
+ TestKeepaliveCallback callback2 = new TestKeepaliveCallback();
+ PacketKeepalive ka2 = mCm.startNattKeepalive(myNet, 25, callback2, myIPv4, 6789, dstIPv4);
+ callback2.expectStarted();
+
+ // Now stop the first one and create a third. This also gets slot 1.
+ ka.stop();
+ callback.expectStopped();
+
+ mWiFiNetworkAgent.setExpectedKeepaliveSlot(1);
+ TestKeepaliveCallback callback3 = new TestKeepaliveCallback();
+ PacketKeepalive ka3 = mCm.startNattKeepalive(myNet, 25, callback3, myIPv4, 9876, dstIPv4);
+ callback3.expectStarted();
+
+ ka2.stop();
+ callback2.expectStopped();
+
+ ka3.stop();
+ callback3.expectStopped();
+ }
}
