import android.net.NetworkState;
import android.net.NetworkUtils;
import android.net.RouteInfo;
+import android.net.util.InterfaceSet;
import android.net.util.PrefixUtils;
import android.net.util.SharedLog;
import android.net.util.VersionedBroadcastListener;
import com.android.server.connectivity.tethering.TetherInterfaceStateMachine;
import com.android.server.connectivity.tethering.TetheringConfiguration;
import com.android.server.connectivity.tethering.TetheringDependencies;
+import com.android.server.connectivity.tethering.TetheringInterfaceUtils;
import com.android.server.connectivity.tethering.UpstreamNetworkMonitor;
import com.android.server.net.BaseNetworkObserver;
private final TetheringDependencies mDeps;
private volatile TetheringConfiguration mConfig;
- private String mCurrentUpstreamIface;
+ private InterfaceSet mCurrentUpstreamIfaceSet;
private Notification.Builder mTetheredNotificationBuilder;
private int mLastNotificationId;
}
// Needed because the canonical source of upstream truth is just the
- // upstream interface name, |mCurrentUpstreamIface|. This is ripe for
- // future simplification, once the upstream Network is canonical.
+ // upstream interface set, |mCurrentUpstreamIfaceSet|.
private boolean pertainsToCurrentUpstream(NetworkState ns) {
- if (ns != null && ns.linkProperties != null && mCurrentUpstreamIface != null) {
+ if (ns != null && ns.linkProperties != null && mCurrentUpstreamIfaceSet != null) {
for (String ifname : ns.linkProperties.getAllInterfaceNames()) {
- if (mCurrentUpstreamIface.equals(ifname)) {
+ if (mCurrentUpstreamIfaceSet.ifnames.contains(ifname)) {
return true;
}
}
}
protected void setUpstreamNetwork(NetworkState ns) {
- String iface = null;
+ InterfaceSet ifaces = null;
if (ns != null) {
// Find the interface with the default IPv4 route. It may be the
// interface described by linkProperties, or one of the interfaces
// stacked on top of it.
mLog.i("Looking for default routes on: " + ns.linkProperties);
- final String iface4 = getIPv4DefaultRouteInterface(ns);
- final String iface6 = getIPv6DefaultRouteInterface(ns);
- mLog.i("IPv4/IPv6 upstream interface(s): " + iface4 + "/" + iface6);
-
- iface = (iface4 != null) ? iface4 : null /* TODO: iface6 */;
+ ifaces = TetheringInterfaceUtils.getTetheringInterfaces(ns);
+ mLog.i("Found upstream interface(s): " + ifaces);
}
- if (iface != null) {
+ if (ifaces != null) {
setDnsForwarders(ns.network, ns.linkProperties);
}
- notifyDownstreamsOfNewUpstreamIface(iface);
+ notifyDownstreamsOfNewUpstreamIface(ifaces);
if (ns != null && pertainsToCurrentUpstream(ns)) {
// If we already have NetworkState for this network examine
// it immediately, because there likely will be no second
// EVENT_ON_AVAILABLE (it was already received).
handleNewUpstreamNetworkState(ns);
- } else if (mCurrentUpstreamIface == null) {
- // There are no available upstream networks, or none that
- // have an IPv4 default route (current metric for success).
+ } else if (mCurrentUpstreamIfaceSet == null) {
+ // There are no available upstream networks.
handleNewUpstreamNetworkState(null);
}
}
}
}
- protected void notifyDownstreamsOfNewUpstreamIface(String ifaceName) {
- mLog.log("Notifying downstreams of upstream=" + ifaceName);
- mCurrentUpstreamIface = ifaceName;
+ protected void notifyDownstreamsOfNewUpstreamIface(InterfaceSet ifaces) {
+ mCurrentUpstreamIfaceSet = ifaces;
for (TetherInterfaceStateMachine sm : mNotifyList) {
- sm.sendMessage(TetherInterfaceStateMachine.CMD_TETHER_CONNECTION_CHANGED,
- ifaceName);
+ sm.sendMessage(TetherInterfaceStateMachine.CMD_TETHER_CONNECTION_CHANGED, ifaces);
}
}
// For example, after CONNECTIVITY_ACTION listening is removed, here
// is where we could observe a Wi-Fi network becoming available and
// passing validation.
- if (mCurrentUpstreamIface == null) {
+ if (mCurrentUpstreamIfaceSet == null) {
// If we have no upstream interface, try to run through upstream
// selection again. If, for example, IPv4 connectivity has shown up
// after IPv6 (e.g., 464xlat became available) we want the chance to
handleNewUpstreamNetworkState(ns);
break;
case UpstreamNetworkMonitor.EVENT_ON_LINKPROPERTIES:
- setDnsForwarders(ns.network, ns.linkProperties);
- handleNewUpstreamNetworkState(ns);
+ chooseUpstreamType(false);
break;
case UpstreamNetworkMonitor.EVENT_ON_LOST:
// TODO: Re-evaluate possible upstreams. Currently upstream
if (VDBG) Log.d(TAG, "Tether Mode requested by " + who);
handleInterfaceServingStateActive(message.arg1, who);
who.sendMessage(TetherInterfaceStateMachine.CMD_TETHER_CONNECTION_CHANGED,
- mCurrentUpstreamIface);
+ mCurrentUpstreamIfaceSet);
// If there has been a change and an upstream is now
// desired, kick off the selection process.
final boolean previousUpstreamWanted = updateUpstreamWanted();
pw.println(" - lastError = " + tetherState.lastError);
}
pw.println("Upstream wanted: " + upstreamWanted());
- pw.println("Current upstream interface: " + mCurrentUpstreamIface);
+ pw.println("Current upstream interface(s): " + mCurrentUpstreamIfaceSet);
pw.decreaseIndent();
}
import java.net.Inet6Address;
import java.net.InetAddress;
-import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.Arrays;
-import java.util.HashMap;
import java.util.LinkedList;
import java.util.Random;
if (VDBG) {
Log.d(TAG, "updateUpstreamNetworkState: " + toDebugString(ns));
}
- if (!canTetherIPv6(ns, mLog)) {
+ if (TetheringInterfaceUtils.getIPv6Interface(ns) == null) {
stopIPv6TetheringOnAllInterfaces();
setUpstreamNetworkState(null);
return;
return null;
}
- private static boolean canTetherIPv6(NetworkState ns, SharedLog sharedLog) {
- // Broadly speaking:
- //
- // [1] does the upstream have an IPv6 default route?
- //
- // and
- //
- // [2] does the upstream have one or more global IPv6 /64s
- // dedicated to this device?
- //
- // In lieu of Prefix Delegation and other evaluation of whether a
- // prefix may or may not be dedicated to this device, for now just
- // check whether the upstream is TRANSPORT_CELLULAR. This works
- // because "[t]he 3GPP network allocates each default bearer a unique
- // /64 prefix", per RFC 6459, Section 5.2.
-
- final boolean canTether =
- (ns != null) && (ns.network != null) &&
- (ns.linkProperties != null) && (ns.networkCapabilities != null) &&
- // At least one upstream DNS server:
- ns.linkProperties.isProvisioned() &&
- // Minimal amount of IPv6 provisioning:
- ns.linkProperties.hasIPv6DefaultRoute() &&
- ns.linkProperties.hasGlobalIPv6Address() &&
- // Temporary approximation of "dedicated prefix":
- ns.networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR);
-
- // For now, we do not support separate IPv4 and IPv6 upstreams (e.g.
- // tethering with 464xlat involved). TODO: Rectify this shortcoming,
- // likely by calling NetworkManagementService#startInterfaceForwarding()
- // for all upstream interfaces.
- RouteInfo v4default = null;
- RouteInfo v6default = null;
- if (canTether) {
- for (RouteInfo r : ns.linkProperties.getAllRoutes()) {
- if (r.isIPv4Default()) {
- v4default = r;
- } else if (r.isIPv6Default()) {
- v6default = r;
- }
-
- if (v4default != null && v6default != null) {
- break;
- }
- }
- }
-
- final boolean supportedConfiguration =
- (v4default != null) && (v6default != null) &&
- (v4default.getInterface() != null) &&
- v4default.getInterface().equals(v6default.getInterface());
-
- final boolean outcome = canTether && supportedConfiguration;
-
- if (ns == null) {
- sharedLog.log("No available upstream.");
- } else {
- sharedLog.log(String.format("IPv6 tethering is %s for upstream: %s",
- (outcome ? "available" : "not available"), toDebugString(ns)));
- }
-
- return outcome;
- }
-
private static LinkProperties getIPv6OnlyLinkProperties(LinkProperties lp) {
final LinkProperties v6only = new LinkProperties();
if (lp == null) {
import android.net.ip.RouterAdvertisementDaemon;
import android.net.ip.RouterAdvertisementDaemon.RaParams;
import android.net.util.InterfaceParams;
-import android.net.util.NetdService;
+import android.net.util.InterfaceSet;
import android.net.util.SharedLog;
import android.os.INetworkManagementService;
import android.os.Looper;
import java.net.Inet6Address;
import java.net.InetAddress;
-import java.net.SocketException;
import java.net.UnknownHostException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.Objects;
import java.util.Random;
+import java.util.Set;
/**
* Provides the interface to IP-layer serving functionality for a given network
private int mLastError;
private int mServingMode;
- private String mMyUpstreamIfaceName; // may change over time
+ private InterfaceSet mUpstreamIfaceSet; // may change over time
private InterfaceParams mInterfaceParams;
// TODO: De-duplicate this with mLinkProperties above. Currently, these link
// properties are those selected by the IPv6TetheringCoordinator and relayed
}
private void cleanupUpstream() {
- if (mMyUpstreamIfaceName == null) return;
+ if (mUpstreamIfaceSet == null) return;
- cleanupUpstreamInterface(mMyUpstreamIfaceName);
- mMyUpstreamIfaceName = null;
+ for (String ifname : mUpstreamIfaceSet.ifnames) cleanupUpstreamInterface(ifname);
+ mUpstreamIfaceSet = null;
}
private void cleanupUpstreamInterface(String upstreamIface) {
mLog.e("CMD_TETHER_REQUESTED while already tethering.");
break;
case CMD_TETHER_CONNECTION_CHANGED:
- String newUpstreamIfaceName = (String)(message.obj);
- if ((mMyUpstreamIfaceName == null && newUpstreamIfaceName == null) ||
- (mMyUpstreamIfaceName != null &&
- mMyUpstreamIfaceName.equals(newUpstreamIfaceName))) {
+ final InterfaceSet newUpstreamIfaceSet = (InterfaceSet) message.obj;
+ if (noChangeInUpstreamIfaceSet(newUpstreamIfaceSet)) {
if (VDBG) Log.d(TAG, "Connection changed noop - dropping");
break;
}
- cleanupUpstream();
- if (newUpstreamIfaceName != null) {
+
+ if (newUpstreamIfaceSet == null) {
+ cleanupUpstream();
+ break;
+ }
+
+ for (String removed : upstreamInterfacesRemoved(newUpstreamIfaceSet)) {
+ cleanupUpstreamInterface(removed);
+ }
+
+ final Set<String> added = upstreamInterfacesAdd(newUpstreamIfaceSet);
+ // This makes the call to cleanupUpstream() in the error
+ // path for any interface neatly cleanup all the interfaces.
+ mUpstreamIfaceSet = newUpstreamIfaceSet;
+
+ for (String ifname : added) {
try {
- mNMService.enableNat(mIfaceName, newUpstreamIfaceName);
- mNMService.startInterfaceForwarding(mIfaceName,
- newUpstreamIfaceName);
+ mNMService.enableNat(mIfaceName, ifname);
+ mNMService.startInterfaceForwarding(mIfaceName, ifname);
} catch (Exception e) {
mLog.e("Exception enabling NAT: " + e);
- cleanupUpstreamInterface(newUpstreamIfaceName);
+ cleanupUpstream();
mLastError = ConnectivityManager.TETHER_ERROR_ENABLE_NAT_ERROR;
transitionTo(mInitialState);
return true;
}
}
- mMyUpstreamIfaceName = newUpstreamIfaceName;
break;
default:
return false;
}
return true;
}
+
+ private boolean noChangeInUpstreamIfaceSet(InterfaceSet newIfaces) {
+ if (mUpstreamIfaceSet == null && newIfaces == null) return true;
+ if (mUpstreamIfaceSet != null && newIfaces != null) {
+ return mUpstreamIfaceSet.equals(newIfaces);
+ }
+ return false;
+ }
+
+ private Set<String> upstreamInterfacesRemoved(InterfaceSet newIfaces) {
+ if (mUpstreamIfaceSet == null) return new HashSet<>();
+
+ final HashSet<String> removed = new HashSet<>(mUpstreamIfaceSet.ifnames);
+ removed.removeAll(newIfaces.ifnames);
+ return removed;
+ }
+
+ private Set<String> upstreamInterfacesAdd(InterfaceSet newIfaces) {
+ final HashSet<String> added = new HashSet<>(newIfaces.ifnames);
+ if (mUpstreamIfaceSet != null) added.removeAll(mUpstreamIfaceSet.ifnames);
+ return added;
+ }
}
/**
--- /dev/null
+/*
+ * 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.connectivity.tethering;
+
+import android.annotation.Nullable;
+import android.net.LinkProperties;
+import android.net.NetworkCapabilities;
+import android.net.NetworkState;
+import android.net.RouteInfo;
+import android.net.util.InterfaceSet;
+
+import java.net.Inet4Address;
+import java.net.Inet6Address;
+import java.net.InetAddress;
+
+/**
+ * @hide
+ */
+public final class TetheringInterfaceUtils {
+ /**
+ * Get upstream interfaces for tethering based on default routes for IPv4/IPv6.
+ * @return null if there is no usable interface, or a set of at least one interface otherwise.
+ */
+ public static @Nullable InterfaceSet getTetheringInterfaces(NetworkState ns) {
+ if (ns == null) {
+ return null;
+ }
+
+ final LinkProperties lp = ns.linkProperties;
+ final String if4 = getInterfaceForDestination(lp, Inet4Address.ANY);
+ final String if6 = getIPv6Interface(ns);
+
+ return (if4 == null && if6 == null) ? null : new InterfaceSet(if4, if6);
+ }
+
+ /**
+ * Get the upstream interface for IPv6 tethering.
+ * @return null if there is no usable interface, or the interface name otherwise.
+ */
+ public static @Nullable String getIPv6Interface(NetworkState ns) {
+ // Broadly speaking:
+ //
+ // [1] does the upstream have an IPv6 default route?
+ //
+ // and
+ //
+ // [2] does the upstream have one or more global IPv6 /64s
+ // dedicated to this device?
+ //
+ // In lieu of Prefix Delegation and other evaluation of whether a
+ // prefix may or may not be dedicated to this device, for now just
+ // check whether the upstream is TRANSPORT_CELLULAR. This works
+ // because "[t]he 3GPP network allocates each default bearer a unique
+ // /64 prefix", per RFC 6459, Section 5.2.
+ final boolean canTether =
+ (ns != null) && (ns.network != null) &&
+ (ns.linkProperties != null) && (ns.networkCapabilities != null) &&
+ // At least one upstream DNS server:
+ ns.linkProperties.hasIPv6DnsServer() &&
+ // Minimal amount of IPv6 provisioning:
+ ns.linkProperties.hasGlobalIPv6Address() &&
+ // Temporary approximation of "dedicated prefix":
+ ns.networkCapabilities.hasTransport(NetworkCapabilities.TRANSPORT_CELLULAR);
+
+ return canTether
+ ? getInterfaceForDestination(ns.linkProperties, Inet6Address.ANY)
+ : null;
+ }
+
+ private static String getInterfaceForDestination(LinkProperties lp, InetAddress dst) {
+ final RouteInfo ri = (lp != null)
+ ? RouteInfo.selectBestRoute(lp.getAllRoutes(), dst)
+ : null;
+ return (ri != null) ? ri.getInterface() : null;
+ }
+}
--- /dev/null
+/*
+ * 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.util;
+
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
+import java.util.StringJoiner;
+
+
+/**
+ * @hide
+ */
+public class InterfaceSet {
+ public final Set<String> ifnames;
+
+ public InterfaceSet(String... names) {
+ final Set<String> nameSet = new HashSet<>();
+ for (String name : names) {
+ if (name != null) nameSet.add(name);
+ }
+ ifnames = Collections.unmodifiableSet(nameSet);
+ }
+
+ @Override
+ public String toString() {
+ final StringJoiner sj = new StringJoiner(",", "[", "]");
+ for (String ifname : ifnames) sj.add(ifname);
+ return sj.toString();
+ }
+
+ @Override
+ public boolean equals(Object obj) {
+ return obj != null
+ && obj instanceof InterfaceSet
+ && ifnames.equals(((InterfaceSet)obj).ifnames);
+ }
+}
--- /dev/null
+/*
+ * 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.util;
+
+import static junit.framework.Assert.assertEquals;
+import static junit.framework.Assert.assertFalse;
+import static junit.framework.Assert.assertTrue;
+
+import android.support.test.filters.SmallTest;
+import android.support.test.runner.AndroidJUnit4;
+
+import org.junit.Test;
+import org.junit.runner.RunWith;
+
+@RunWith(AndroidJUnit4.class)
+@SmallTest
+public class InterfaceSetTest {
+ @Test
+ public void testNullNamesIgnored() {
+ final InterfaceSet set = new InterfaceSet(null, "if1", null, "if2", null);
+ assertEquals(2, set.ifnames.size());
+ assertTrue(set.ifnames.contains("if1"));
+ assertTrue(set.ifnames.contains("if2"));
+ }
+
+ @Test
+ public void testToString() {
+ final InterfaceSet set = new InterfaceSet("if1", "if2");
+ final String setString = set.toString();
+ assertTrue(setString.equals("[if1,if2]") || setString.equals("[if2,if1]"));
+ }
+
+ @Test
+ public void testToString_Empty() {
+ final InterfaceSet set = new InterfaceSet(null, null);
+ assertEquals("[]", set.toString());
+ }
+
+ @Test
+ public void testEquals() {
+ assertEquals(new InterfaceSet(null, "if1", "if2"), new InterfaceSet("if2", "if1"));
+ assertEquals(new InterfaceSet(null, null), new InterfaceSet());
+ assertFalse(new InterfaceSet("if1", "if3").equals(new InterfaceSet("if1", "if2")));
+ assertFalse(new InterfaceSet("if1", "if2").equals(new InterfaceSet("if1")));
+ assertFalse(new InterfaceSet().equals(null));
+ }
+}
import static android.net.wifi.WifiManager.WIFI_AP_STATE_ENABLED;
import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.ArgumentMatchers.argThat;
import static org.mockito.ArgumentMatchers.notNull;
}
}
- private static NetworkState buildMobileUpstreamState(boolean withIPv4, boolean withIPv6) {
+ private static NetworkState buildMobileUpstreamState(boolean withIPv4, boolean withIPv6,
+ boolean with464xlat) {
final NetworkInfo info = new NetworkInfo(ConnectivityManager.TYPE_MOBILE, 0, null, null);
info.setDetailedState(NetworkInfo.DetailedState.CONNECTED, null, null);
final LinkProperties prop = new LinkProperties();
NetworkUtils.numericToInetAddress("2001:db8::1"), TEST_MOBILE_IFNAME));
}
+ if (with464xlat) {
+ final LinkProperties stackedLink = new LinkProperties();
+ stackedLink.setInterfaceName(TEST_XLAT_MOBILE_IFNAME);
+ stackedLink.addRoute(new RouteInfo(new IpPrefix(Inet4Address.ANY, 0),
+ NetworkUtils.numericToInetAddress("192.0.0.1"), TEST_XLAT_MOBILE_IFNAME));
+
+ prop.addStackedLink(stackedLink);
+ }
+
final NetworkCapabilities capabilities = new NetworkCapabilities()
.addTransportType(NetworkCapabilities.TRANSPORT_CELLULAR);;
}
private static NetworkState buildMobileIPv4UpstreamState() {
- return buildMobileUpstreamState(true, false);
+ return buildMobileUpstreamState(true, false, false);
+ }
+
+ private static NetworkState buildMobileIPv6UpstreamState() {
+ return buildMobileUpstreamState(false, true, false);
}
private static NetworkState buildMobileDualStackUpstreamState() {
- return buildMobileUpstreamState(true, true);
+ return buildMobileUpstreamState(true, true, false);
+ }
+
+ private static NetworkState buildMobile464xlatUpstreamState() {
+ return buildMobileUpstreamState(false, true, true);
}
@Before
for (TetherInterfaceStateMachine tism :
mTetheringDependencies.ipv6CoordinatorNotifyList) {
- NetworkState ipv6OnlyState = buildMobileUpstreamState(false, true);
+ NetworkState ipv6OnlyState = buildMobileUpstreamState(false, true, false);
tism.sendMessage(TetherInterfaceStateMachine.CMD_IPV6_TETHER_UPDATE, 0, 0,
upstreamState.linkProperties.isIPv6Provisioned()
? ipv6OnlyState.linkProperties
}
@Test
+ public void workingMobileUsbTethering_IPv6() throws Exception {
+ NetworkState upstreamState = buildMobileIPv6UpstreamState();
+ runUsbTethering(upstreamState);
+
+ verify(mNMService, times(1)).enableNat(TEST_USB_IFNAME, TEST_MOBILE_IFNAME);
+ verify(mNMService, times(1)).startInterfaceForwarding(TEST_USB_IFNAME, TEST_MOBILE_IFNAME);
+
+ sendIPv6TetherUpdates(upstreamState);
+ verify(mRouterAdvertisementDaemon, times(1)).buildNewRa(any(), notNull());
+ verify(mNetd, times(1)).tetherApplyDnsInterfaces();
+ }
+
+ @Test
public void workingMobileUsbTethering_DualStack() throws Exception {
NetworkState upstreamState = buildMobileDualStackUpstreamState();
runUsbTethering(upstreamState);
verify(mNetd, times(1)).tetherApplyDnsInterfaces();
}
+ @Test
+ public void workingMobileUsbTethering_MultipleUpstreams() throws Exception {
+ NetworkState upstreamState = buildMobile464xlatUpstreamState();
+ runUsbTethering(upstreamState);
+
+ verify(mNMService, times(1)).enableNat(TEST_USB_IFNAME, TEST_XLAT_MOBILE_IFNAME);
+ verify(mNMService, times(1)).enableNat(TEST_USB_IFNAME, TEST_MOBILE_IFNAME);
+ verify(mNMService, times(1)).startInterfaceForwarding(TEST_USB_IFNAME, TEST_MOBILE_IFNAME);
+ verify(mNMService, times(1)).startInterfaceForwarding(TEST_USB_IFNAME,
+ TEST_XLAT_MOBILE_IFNAME);
+
+ sendIPv6TetherUpdates(upstreamState);
+ verify(mRouterAdvertisementDaemon, times(1)).buildNewRa(any(), notNull());
+ verify(mNetd, times(1)).tetherApplyDnsInterfaces();
+ }
+
+ @Test
+ public void workingMobileUsbTethering_v6Then464xlat() throws Exception {
+ // Setup IPv6
+ NetworkState upstreamState = buildMobileIPv6UpstreamState();
+ runUsbTethering(upstreamState);
+
+ verify(mNMService, times(1)).enableNat(TEST_USB_IFNAME, TEST_MOBILE_IFNAME);
+ verify(mNMService, times(1)).startInterfaceForwarding(TEST_USB_IFNAME, TEST_MOBILE_IFNAME);
+
+ // Then 464xlat comes up
+ upstreamState = buildMobile464xlatUpstreamState();
+ when(mUpstreamNetworkMonitor.selectPreferredUpstreamType(any()))
+ .thenReturn(upstreamState);
+
+ // Upstream LinkProperties changed: UpstreamNetworkMonitor sends EVENT_ON_LINKPROPERTIES.
+ mTetheringDependencies.upstreamNetworkMonitorMasterSM.sendMessage(
+ Tethering.TetherMasterSM.EVENT_UPSTREAM_CALLBACK,
+ UpstreamNetworkMonitor.EVENT_ON_LINKPROPERTIES,
+ 0,
+ upstreamState);
+ mLooper.dispatchAll();
+
+ // Forwarding is added for 464xlat
+ verify(mNMService, times(1)).enableNat(TEST_USB_IFNAME, TEST_XLAT_MOBILE_IFNAME);
+ verify(mNMService, times(1)).startInterfaceForwarding(TEST_USB_IFNAME,
+ TEST_XLAT_MOBILE_IFNAME);
+ // Forwarding was not re-added for v6 (still times(1))
+ verify(mNMService, times(1)).enableNat(TEST_USB_IFNAME, TEST_MOBILE_IFNAME);
+ verify(mNMService, times(1)).startInterfaceForwarding(TEST_USB_IFNAME, TEST_MOBILE_IFNAME);
+ }
@Test
public void workingLocalOnlyHotspotEnrichedApBroadcastWithIfaceChanged() throws Exception {
import android.net.LinkAddress;
import android.net.LinkProperties;
import android.net.RouteInfo;
+import android.net.util.InterfaceSet;
import android.net.util.SharedLog;
import android.os.INetworkManagementService;
import android.os.RemoteException;
*/
private void dispatchTetherConnectionChanged(String upstreamIface) {
mTestedSm.sendMessage(TetherInterfaceStateMachine.CMD_TETHER_CONNECTION_CHANGED,
- upstreamIface);
+ new InterfaceSet(upstreamIface));
mLooper.dispatchAll();
}
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