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Update multiple validation result to ConnectivityService

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Once a network is determined to have partial connectivity, it
cannot go back to full connectivity without a disconnect. This
is because NetworkMonitor can only communicate either
PARTIAL_CONNECTIVITY or VALID, but not both. Thus, multiple
validation results allow ConnectivityService to know the real
network status.

Bug: 129662877
Bug: 130683832
Test: atest FrameworksNetTests
Test: atest NetworkStackTests
Test: atest --generate-new-metrics 50
NetworkStackTests:com.android.server.connectivity.NetworkMonitorTest
Test: Simulate partial connectvitiy
Change-Id: I406c9368617c03a2dd3ab15fb1f6dbf539d7c714
This commit is contained in:
Chiachang Wang
2019-05-23 16:29:30 +08:00
parent ac6f142334
commit eff1897661
2 changed files with 89 additions and 27 deletions
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32
services/core/java/com/android/server/ConnectivityService.java
View File

@@ -25,8 +25,8 @@ import static android.net.ConnectivityManager.TYPE_NONE;
import static android.net.ConnectivityManager.TYPE_VPN;
import static android.net.ConnectivityManager.getNetworkTypeName;
import static android.net.ConnectivityManager.isNetworkTypeValid;
import static android.net.INetworkMonitor.NETWORK_TEST_RESULT_PARTIAL_CONNECTIVITY;
import static android.net.INetworkMonitor.NETWORK_TEST_RESULT_VALID;
import static android.net.INetworkMonitor.NETWORK_VALIDATION_RESULT_PARTIAL;
import static android.net.INetworkMonitor.NETWORK_VALIDATION_RESULT_VALID;
import static android.net.NetworkCapabilities.NET_CAPABILITY_CAPTIVE_PORTAL;
import static android.net.NetworkCapabilities.NET_CAPABILITY_FOREGROUND;
import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
@@ -2603,21 +2603,12 @@ public class ConnectivityService extends IConnectivityManager.Stub
final NetworkAgentInfo nai = getNetworkAgentInfoForNetId(msg.arg2);
if (nai == null) break;
final boolean partialConnectivity =
(msg.arg1 == NETWORK_TEST_RESULT_PARTIAL_CONNECTIVITY)
|| (nai.networkMisc.acceptPartialConnectivity
&& nai.partialConnectivity);
// Once a network is determined to have partial connectivity, it cannot
// go back to full connectivity without a disconnect. This is because
// NetworkMonitor can only communicate either PARTIAL_CONNECTIVITY or VALID,
// but not both.
// TODO: Provide multi-testResult to improve the communication between
// ConnectivityService and NetworkMonitor, so that ConnectivityService could
// know the real status of network.
final boolean wasPartial = nai.partialConnectivity;
nai.partialConnectivity = ((msg.arg1 & NETWORK_VALIDATION_RESULT_PARTIAL) != 0);
final boolean partialConnectivityChanged =
(partialConnectivity && !nai.partialConnectivity);
(wasPartial != nai.partialConnectivity);
final boolean valid = (msg.arg1 == NETWORK_TEST_RESULT_VALID);
final boolean valid = ((msg.arg1 & NETWORK_VALIDATION_RESULT_VALID) != 0);
final boolean wasValidated = nai.lastValidated;
final boolean wasDefault = isDefaultNetwork(nai);
if (nai.everCaptivePortalDetected && !nai.captivePortalLoginNotified
@@ -2647,21 +2638,23 @@ public class ConnectivityService extends IConnectivityManager.Stub
if (oldScore != nai.getCurrentScore()) sendUpdatedScoreToFactories(nai);
if (valid) {
handleFreshlyValidatedNetwork(nai);
// Clear NO_INTERNET and LOST_INTERNET notifications if network becomes
// valid.
// Clear NO_INTERNET, PARTIAL_CONNECTIVITY and LOST_INTERNET
// notifications if network becomes valid.
mNotifier.clearNotification(nai.network.netId,
NotificationType.NO_INTERNET);
mNotifier.clearNotification(nai.network.netId,
NotificationType.LOST_INTERNET);
mNotifier.clearNotification(nai.network.netId,
NotificationType.PARTIAL_CONNECTIVITY);
}
} else if (partialConnectivityChanged) {
nai.partialConnectivity = partialConnectivity;
updateCapabilities(nai.getCurrentScore(), nai, nai.networkCapabilities);
}
updateInetCondition(nai);
// Let the NetworkAgent know the state of its network
Bundle redirectUrlBundle = new Bundle();
redirectUrlBundle.putString(NetworkAgent.REDIRECT_URL_KEY, redirectUrl);
// TODO: Evaluate to update partial connectivity to status to NetworkAgent.
nai.asyncChannel.sendMessage(
NetworkAgent.CMD_REPORT_NETWORK_STATUS,
(valid ? NetworkAgent.VALID_NETWORK : NetworkAgent.INVALID_NETWORK),
@@ -3441,6 +3434,9 @@ public class ConnectivityService extends IConnectivityManager.Stub
// Inform NetworkMonitor that partial connectivity is acceptable. This will likely
// result in a partial connectivity result which will be processed by
// maybeHandleNetworkMonitorMessage.
//
// TODO: NetworkMonitor does not refer to the "never ask again" bit. The bit is stored
// per network. Therefore, NetworkMonitor may still do https probe.
try {
nai.networkMonitor().setAcceptPartialConnectivity();
} catch (RemoteException e) {

84
tests/net/java/com/android/server/ConnectivityServiceTest.java
View File

@@ -30,9 +30,12 @@ import static android.net.ConnectivityManager.TYPE_MOBILE_MMS;
import static android.net.ConnectivityManager.TYPE_NONE;
import static android.net.ConnectivityManager.TYPE_VPN;
import static android.net.ConnectivityManager.TYPE_WIFI;
import static android.net.INetworkMonitor.NETWORK_TEST_RESULT_INVALID;
import static android.net.INetworkMonitor.NETWORK_TEST_RESULT_PARTIAL_CONNECTIVITY;
import static android.net.INetworkMonitor.NETWORK_TEST_RESULT_VALID;
import static android.net.INetworkMonitor.NETWORK_VALIDATION_PROBE_DNS;
import static android.net.INetworkMonitor.NETWORK_VALIDATION_PROBE_FALLBACK;
import static android.net.INetworkMonitor.NETWORK_VALIDATION_PROBE_HTTP;
import static android.net.INetworkMonitor.NETWORK_VALIDATION_PROBE_HTTPS;
import static android.net.INetworkMonitor.NETWORK_VALIDATION_RESULT_PARTIAL;
import static android.net.INetworkMonitor.NETWORK_VALIDATION_RESULT_VALID;
import static android.net.NetworkCapabilities.NET_CAPABILITY_CAPTIVE_PORTAL;
import static android.net.NetworkCapabilities.NET_CAPABILITY_CBS;
import static android.net.NetworkCapabilities.NET_CAPABILITY_DUN;
@@ -443,6 +446,16 @@ public class ConnectivityServiceTest {
}
private class MockNetworkAgent {
private static final int VALIDATION_RESULT_BASE = NETWORK_VALIDATION_PROBE_DNS
| NETWORK_VALIDATION_PROBE_HTTP
| NETWORK_VALIDATION_PROBE_HTTPS;
private static final int VALIDATION_RESULT_VALID = VALIDATION_RESULT_BASE
| NETWORK_VALIDATION_RESULT_VALID;
private static final int VALIDATION_RESULT_PARTIAL = VALIDATION_RESULT_BASE
| NETWORK_VALIDATION_PROBE_FALLBACK
| NETWORK_VALIDATION_RESULT_PARTIAL;
private static final int VALIDATION_RESULT_INVALID = 0;
private final INetworkMonitor mNetworkMonitor;
private final NetworkInfo mNetworkInfo;
private final NetworkCapabilities mNetworkCapabilities;
@@ -460,17 +473,17 @@ public class ConnectivityServiceTest {
private String mRedirectUrl;
private INetworkMonitorCallbacks mNmCallbacks;
private int mNmValidationResult = NETWORK_TEST_RESULT_INVALID;
private int mNmValidationResult = VALIDATION_RESULT_BASE;
private String mNmValidationRedirectUrl = null;
private boolean mNmProvNotificationRequested = false;
void setNetworkValid() {
mNmValidationResult = NETWORK_TEST_RESULT_VALID;
mNmValidationResult = VALIDATION_RESULT_VALID;
mNmValidationRedirectUrl = null;
}
void setNetworkInvalid() {
mNmValidationResult = NETWORK_TEST_RESULT_INVALID;
mNmValidationResult = VALIDATION_RESULT_INVALID;
mNmValidationRedirectUrl = null;
}
@@ -480,7 +493,12 @@ public class ConnectivityServiceTest {
}
void setNetworkPartial() {
mNmValidationResult = NETWORK_TEST_RESULT_PARTIAL_CONNECTIVITY;
mNmValidationResult = VALIDATION_RESULT_PARTIAL;
mNmValidationRedirectUrl = null;
}
void setNetworkPartialValid() {
mNmValidationResult = VALIDATION_RESULT_PARTIAL | VALIDATION_RESULT_VALID;
mNmValidationRedirectUrl = null;
}
@@ -597,7 +615,7 @@ public class ConnectivityServiceTest {
private void onValidationRequested() {
try {
if (mNmProvNotificationRequested
&& mNmValidationResult == NETWORK_TEST_RESULT_VALID) {
&& mNmValidationResult == VALIDATION_RESULT_VALID) {
mNmCallbacks.hideProvisioningNotification();
mNmProvNotificationRequested = false;
}
@@ -2651,7 +2669,7 @@ public class ConnectivityServiceTest {
// With HTTPS probe disabled, NetworkMonitor should pass the network validation with http
// probe.
mWiFiNetworkAgent.setNetworkValid();
mWiFiNetworkAgent.setNetworkPartialValid();
// If the user chooses yes to use this partial connectivity wifi, switch the default
// network to wifi and check if wifi becomes valid or not.
mCm.setAcceptPartialConnectivity(mWiFiNetworkAgent.getNetwork(), true /* accept */,
@@ -2748,6 +2766,54 @@ public class ConnectivityServiceTest {
callback.expectCallback(CallbackState.LOST, mWiFiNetworkAgent);
}
@Test
public void testCaptivePortalOnPartialConnectivity() throws RemoteException {
final TestNetworkCallback captivePortalCallback = new TestNetworkCallback();
final NetworkRequest captivePortalRequest = new NetworkRequest.Builder()
.addCapability(NET_CAPABILITY_CAPTIVE_PORTAL).build();
mCm.registerNetworkCallback(captivePortalRequest, captivePortalCallback);
final TestNetworkCallback validatedCallback = new TestNetworkCallback();
final NetworkRequest validatedRequest = new NetworkRequest.Builder()
.addCapability(NET_CAPABILITY_VALIDATED).build();
mCm.registerNetworkCallback(validatedRequest, validatedCallback);
// Bring up a network with a captive portal.
// Expect onAvailable callback of listen for NET_CAPABILITY_CAPTIVE_PORTAL.
mWiFiNetworkAgent = new MockNetworkAgent(TRANSPORT_WIFI);
String firstRedirectUrl = "http://example.com/firstPath";
mWiFiNetworkAgent.connectWithCaptivePortal(firstRedirectUrl);
captivePortalCallback.expectAvailableCallbacksUnvalidated(mWiFiNetworkAgent);
assertEquals(mWiFiNetworkAgent.waitForRedirectUrl(), firstRedirectUrl);
// Check that startCaptivePortalApp sends the expected command to NetworkMonitor.
mCm.startCaptivePortalApp(mWiFiNetworkAgent.getNetwork());
verify(mWiFiNetworkAgent.mNetworkMonitor, timeout(TIMEOUT_MS).times(1))
.launchCaptivePortalApp();
// Report that the captive portal is dismissed with partial connectivity, and check that
// callbacks are fired.
mWiFiNetworkAgent.setNetworkPartial();
mWiFiNetworkAgent.mNetworkMonitor.forceReevaluation(Process.myUid());
waitForIdle();
captivePortalCallback.expectCapabilitiesWith(NET_CAPABILITY_PARTIAL_CONNECTIVITY,
mWiFiNetworkAgent);
// Report partial connectivity is accepted.
mWiFiNetworkAgent.setNetworkPartialValid();
mCm.setAcceptPartialConnectivity(mWiFiNetworkAgent.getNetwork(), true /* accept */,
false /* always */);
waitForIdle();
mCm.reportNetworkConnectivity(mWiFiNetworkAgent.getNetwork(), true);
validatedCallback.expectAvailableCallbacksValidated(mWiFiNetworkAgent);
NetworkCapabilities nc =
validatedCallback.expectCapabilitiesWith(NET_CAPABILITY_PARTIAL_CONNECTIVITY,
mWiFiNetworkAgent);
mCm.unregisterNetworkCallback(captivePortalCallback);
mCm.unregisterNetworkCallback(validatedCallback);
}
@Test
public void testCaptivePortal() {
final TestNetworkCallback captivePortalCallback = new TestNetworkCallback();