LineageOS/android_packages_modules_Connectivity
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Merge "Fix a bug where VPNs start out suspended on cellular" into rvc-dev

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This commit is contained in:
Chalard Jean
2020-05-21 06:43:56 +00:00
committed by Android (Google) Code Review
parent bee5b3f227 ebbece8b22
commit 5c721ed487
3 changed files with 111 additions and 6 deletions
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3
tests/net/integration/util/com/android/server/NetworkAgentWrapper.java
View File

@@ -92,6 +92,9 @@ public class NetworkAgentWrapper implements TestableNetworkCallback.HasNetwork {
break;
case TRANSPORT_VPN:
mNetworkCapabilities.removeCapability(NET_CAPABILITY_NOT_VPN);
// VPNs deduce the SUSPENDED capability from their underlying networks and there
// is no public API to let VPN services set it.
mNetworkCapabilities.removeCapability(NET_CAPABILITY_NOT_SUSPENDED);
mScore = ConnectivityConstants.VPN_DEFAULT_SCORE;
break;
default:

107
tests/net/java/com/android/server/ConnectivityServiceTest.java
View File

@@ -5415,6 +5415,47 @@ public class ConnectivityServiceTest {
callback.expectAvailableCallbacksValidated(mEthernetNetworkAgent);
}
@Test
public void testVpnStartsWithUnderlyingCaps() throws Exception {
final int uid = Process.myUid();
final TestNetworkCallback vpnNetworkCallback = new TestNetworkCallback();
final NetworkRequest vpnNetworkRequest = new NetworkRequest.Builder()
.removeCapability(NET_CAPABILITY_NOT_VPN)
.addTransportType(TRANSPORT_VPN)
.build();
mCm.registerNetworkCallback(vpnNetworkRequest, vpnNetworkCallback);
vpnNetworkCallback.assertNoCallback();
// Connect cell. It will become the default network, and in the absence of setting
// underlying networks explicitly it will become the sole underlying network for the vpn.
mCellNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_CELLULAR);
mCellNetworkAgent.addCapability(NET_CAPABILITY_NOT_SUSPENDED);
mCellNetworkAgent.connect(true);
final TestNetworkAgentWrapper vpnNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_VPN);
final ArraySet<UidRange> ranges = new ArraySet<>();
ranges.add(new UidRange(uid, uid));
mMockVpn.setNetworkAgent(vpnNetworkAgent);
mMockVpn.connect();
mMockVpn.setUids(ranges);
vpnNetworkAgent.connect(true /* validated */, false /* hasInternet */,
false /* isStrictMode */);
vpnNetworkCallback.expectAvailableCallbacks(vpnNetworkAgent.getNetwork(),
false /* suspended */, false /* validated */, false /* blocked */, TIMEOUT_MS);
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent.getNetwork(), TIMEOUT_MS,
nc -> nc.hasCapability(NET_CAPABILITY_VALIDATED));
final NetworkCapabilities nc = mCm.getNetworkCapabilities(vpnNetworkAgent.getNetwork());
assertTrue(nc.hasTransport(TRANSPORT_VPN));
assertTrue(nc.hasTransport(TRANSPORT_CELLULAR));
assertFalse(nc.hasTransport(TRANSPORT_WIFI));
assertTrue(nc.hasCapability(NET_CAPABILITY_VALIDATED));
assertFalse(nc.hasCapability(NET_CAPABILITY_NOT_METERED));
assertTrue(nc.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
}
@Test
public void testVpnSetUnderlyingNetworks() throws Exception {
final int uid = Process.myUid();
@@ -5448,6 +5489,7 @@ public class ConnectivityServiceTest {
// Connect cell and use it as an underlying network.
mCellNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_CELLULAR);
mCellNetworkAgent.addCapability(NET_CAPABILITY_NOT_SUSPENDED);
mCellNetworkAgent.connect(true);
mService.setUnderlyingNetworksForVpn(
@@ -5456,10 +5498,12 @@ public class ConnectivityServiceTest {
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent,
(caps) -> caps.hasTransport(TRANSPORT_VPN)
&& caps.hasTransport(TRANSPORT_CELLULAR) && !caps.hasTransport(TRANSPORT_WIFI)
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED));
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
&& caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
mWiFiNetworkAgent = new TestNetworkAgentWrapper(TRANSPORT_WIFI);
mWiFiNetworkAgent.addCapability(NET_CAPABILITY_NOT_METERED);
mWiFiNetworkAgent.addCapability(NET_CAPABILITY_NOT_SUSPENDED);
mWiFiNetworkAgent.connect(true);
mService.setUnderlyingNetworksForVpn(
@@ -5468,7 +5512,8 @@ public class ConnectivityServiceTest {
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent,
(caps) -> caps.hasTransport(TRANSPORT_VPN)
&& caps.hasTransport(TRANSPORT_CELLULAR) && caps.hasTransport(TRANSPORT_WIFI)
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED));
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
&& caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
// Don't disconnect, but note the VPN is not using wifi any more.
mService.setUnderlyingNetworksForVpn(
@@ -5477,16 +5522,36 @@ public class ConnectivityServiceTest {
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent,
(caps) -> caps.hasTransport(TRANSPORT_VPN)
&& caps.hasTransport(TRANSPORT_CELLULAR) && !caps.hasTransport(TRANSPORT_WIFI)
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED));
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
&& caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
// Use Wifi but not cell. Note the VPN is now unmetered.
// Remove NOT_SUSPENDED from the only network and observe VPN is now suspended.
mCellNetworkAgent.removeCapability(NET_CAPABILITY_NOT_SUSPENDED);
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent,
(caps) -> caps.hasTransport(TRANSPORT_VPN)
&& caps.hasTransport(TRANSPORT_CELLULAR) && !caps.hasTransport(TRANSPORT_WIFI)
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
&& !caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
vpnNetworkCallback.expectCallback(CallbackEntry.SUSPENDED, vpnNetworkAgent);
// Add NOT_SUSPENDED again and observe VPN is no longer suspended.
mCellNetworkAgent.addCapability(NET_CAPABILITY_NOT_SUSPENDED);
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent,
(caps) -> caps.hasTransport(TRANSPORT_VPN)
&& caps.hasTransport(TRANSPORT_CELLULAR) && !caps.hasTransport(TRANSPORT_WIFI)
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
&& caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
vpnNetworkCallback.expectCallback(CallbackEntry.RESUMED, vpnNetworkAgent);
// Use Wifi but not cell. Note the VPN is now unmetered and not suspended.
mService.setUnderlyingNetworksForVpn(
new Network[] { mWiFiNetworkAgent.getNetwork() });
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent,
(caps) -> caps.hasTransport(TRANSPORT_VPN)
&& !caps.hasTransport(TRANSPORT_CELLULAR) && caps.hasTransport(TRANSPORT_WIFI)
&& caps.hasCapability(NET_CAPABILITY_NOT_METERED));
&& caps.hasCapability(NET_CAPABILITY_NOT_METERED)
&& caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
// Use both again.
mService.setUnderlyingNetworksForVpn(
@@ -5495,7 +5560,37 @@ public class ConnectivityServiceTest {
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent,
(caps) -> caps.hasTransport(TRANSPORT_VPN)
&& caps.hasTransport(TRANSPORT_CELLULAR) && caps.hasTransport(TRANSPORT_WIFI)
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED));
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
&& caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
// Cell is suspended again. As WiFi is not, this should not cause a callback.
mCellNetworkAgent.removeCapability(NET_CAPABILITY_NOT_SUSPENDED);
vpnNetworkCallback.assertNoCallback();
// Stop using WiFi. The VPN is suspended again.
mService.setUnderlyingNetworksForVpn(
new Network[] { mCellNetworkAgent.getNetwork() });
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent,
(caps) -> caps.hasTransport(TRANSPORT_VPN)
&& caps.hasTransport(TRANSPORT_CELLULAR)
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
&& !caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
// While the SUSPENDED callback should in theory be sent here, it is not. This is
// a bug in ConnectivityService, but as the SUSPENDED and RESUMED callbacks have never
// been public and are deprecated and slated for removal, there is no sense in spending
// resources fixing this bug now.
// Use both again.
mService.setUnderlyingNetworksForVpn(
new Network[] { mCellNetworkAgent.getNetwork(), mWiFiNetworkAgent.getNetwork() });
vpnNetworkCallback.expectCapabilitiesThat(vpnNetworkAgent,
(caps) -> caps.hasTransport(TRANSPORT_VPN)
&& caps.hasTransport(TRANSPORT_CELLULAR) && caps.hasTransport(TRANSPORT_WIFI)
&& !caps.hasCapability(NET_CAPABILITY_NOT_METERED)
&& caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
// As above, the RESUMED callback not being sent here is a bug, but not a bug that's
// worth anybody's time to fix.
// Disconnect cell. Receive update without even removing the dead network from the
// underlying networks – it's dead anyway. Not metered any more.

7
tests/net/java/com/android/server/connectivity/VpnTest.java
View File

@@ -25,6 +25,7 @@ import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_CONGESTED;
import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_METERED;
import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_ROAMING;
import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_SUSPENDED;
import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
import static android.net.NetworkCapabilities.TRANSPORT_VPN;
import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
@@ -606,6 +607,7 @@ public class VpnTest {
.addCapability(NET_CAPABILITY_NOT_METERED)
.addCapability(NET_CAPABILITY_NOT_ROAMING)
.addCapability(NET_CAPABILITY_NOT_CONGESTED)
.addCapability(NET_CAPABILITY_NOT_SUSPENDED)
.setLinkUpstreamBandwidthKbps(20));
setMockedNetworks(networks);
@@ -621,6 +623,7 @@ public class VpnTest {
assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
Vpn.applyUnderlyingCapabilities(
mConnectivityManager,
@@ -635,6 +638,7 @@ public class VpnTest {
assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
Vpn.applyUnderlyingCapabilities(
mConnectivityManager, new Network[] {wifi}, caps, false /* isAlwaysMetered */);
@@ -646,6 +650,7 @@ public class VpnTest {
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
Vpn.applyUnderlyingCapabilities(
mConnectivityManager, new Network[] {wifi}, caps, true /* isAlwaysMetered */);
@@ -657,6 +662,7 @@ public class VpnTest {
assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
Vpn.applyUnderlyingCapabilities(
mConnectivityManager,
@@ -671,6 +677,7 @@ public class VpnTest {
assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_METERED));
assertFalse(caps.hasCapability(NET_CAPABILITY_NOT_ROAMING));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_CONGESTED));
assertTrue(caps.hasCapability(NET_CAPABILITY_NOT_SUSPENDED));
}
/**