Fix hidden usage of networkCapabilitiesForType
After this change, tethering only support below legacy type:
- TYPE_BLUETOOTH
- TYPE_ETHERNET
- TYPE_MOBILE
- TYPE_MOBILE_DUN
- TYPE_MOBILE_HIPRI
- TYPE_WIFI
Bug: 144753389
Test: build
Change-Id: I394c8306d9f88a6648580b3b410069ad219f0074
diff --git a/Tethering/src/com/android/server/connectivity/tethering/UpstreamNetworkMonitor.java b/Tethering/src/com/android/server/connectivity/tethering/UpstreamNetworkMonitor.java
index fe3f517..5692a6f 100644
--- a/Tethering/src/com/android/server/connectivity/tethering/UpstreamNetworkMonitor.java
+++ b/Tethering/src/com/android/server/connectivity/tethering/UpstreamNetworkMonitor.java
@@ -16,9 +16,12 @@
package com.android.server.connectivity.tethering;
+import static android.net.ConnectivityManager.TYPE_BLUETOOTH;
+import static android.net.ConnectivityManager.TYPE_ETHERNET;
+import static android.net.ConnectivityManager.TYPE_MOBILE;
import static android.net.ConnectivityManager.TYPE_MOBILE_DUN;
import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI;
-import static android.net.ConnectivityManager.TYPE_NONE;
+import static android.net.ConnectivityManager.TYPE_WIFI;
import static android.net.NetworkCapabilities.NET_CAPABILITY_DUN;
import static android.net.NetworkCapabilities.NET_CAPABILITY_NOT_VPN;
import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
@@ -35,8 +38,10 @@
import android.net.util.SharedLog;
import android.os.Handler;
import android.util.Log;
+import android.util.SparseIntArray;
import com.android.internal.annotations.VisibleForTesting;
+import com.android.internal.util.Preconditions;
import com.android.internal.util.StateMachine;
import java.util.HashMap;
@@ -77,11 +82,25 @@
public static final int EVENT_ON_LINKPROPERTIES = 2;
public static final int EVENT_ON_LOST = 3;
public static final int NOTIFY_LOCAL_PREFIXES = 10;
+ // This value is used by deprecated preferredUpstreamIfaceTypes selection which is default
+ // disabled.
+ @VisibleForTesting
+ public static final int TYPE_NONE = -1;
private static final int CALLBACK_LISTEN_ALL = 1;
private static final int CALLBACK_DEFAULT_INTERNET = 2;
private static final int CALLBACK_MOBILE_REQUEST = 3;
+ private static final SparseIntArray sLegacyTypeToTransport = new SparseIntArray();
+ static {
+ sLegacyTypeToTransport.put(TYPE_MOBILE, NetworkCapabilities.TRANSPORT_CELLULAR);
+ sLegacyTypeToTransport.put(TYPE_MOBILE_DUN, NetworkCapabilities.TRANSPORT_CELLULAR);
+ sLegacyTypeToTransport.put(TYPE_MOBILE_HIPRI, NetworkCapabilities.TRANSPORT_CELLULAR);
+ sLegacyTypeToTransport.put(TYPE_WIFI, NetworkCapabilities.TRANSPORT_WIFI);
+ sLegacyTypeToTransport.put(TYPE_BLUETOOTH, NetworkCapabilities.TRANSPORT_BLUETOOTH);
+ sLegacyTypeToTransport.put(TYPE_ETHERNET, NetworkCapabilities.TRANSPORT_ETHERNET);
+ }
+
private final Context mContext;
private final SharedLog mLog;
private final StateMachine mTarget;
@@ -202,7 +221,7 @@
final int legacyType = mDunRequired ? TYPE_MOBILE_DUN : TYPE_MOBILE_HIPRI;
final NetworkRequest mobileUpstreamRequest = new NetworkRequest.Builder()
- .setCapabilities(ConnectivityManager.networkCapabilitiesForType(legacyType))
+ .setCapabilities(networkCapabilitiesForType(legacyType))
.build();
// The existing default network and DUN callbacks will be notified.
@@ -354,16 +373,6 @@
notifyTarget(EVENT_ON_LINKPROPERTIES, network);
}
- private void handleSuspended(Network network) {
- if (!network.equals(mTetheringUpstreamNetwork)) return;
- mLog.log("SUSPENDED current upstream: " + network);
- }
-
- private void handleResumed(Network network) {
- if (!network.equals(mTetheringUpstreamNetwork)) return;
- mLog.log("RESUMED current upstream: " + network);
- }
-
private void handleLost(Network network) {
// There are few TODOs within ConnectivityService's rematching code
// pertaining to spurious onLost() notifications.
@@ -453,20 +462,6 @@
}
@Override
- public void onNetworkSuspended(Network network) {
- if (mCallbackType == CALLBACK_LISTEN_ALL) {
- handleSuspended(network);
- }
- }
-
- @Override
- public void onNetworkResumed(Network network) {
- if (mCallbackType == CALLBACK_LISTEN_ALL) {
- handleResumed(network);
- }
- }
-
- @Override
public void onLost(Network network) {
if (mCallbackType == CALLBACK_DEFAULT_INTERNET) {
mDefaultInternetNetwork = null;
@@ -510,7 +505,7 @@
for (int type : preferredTypes) {
NetworkCapabilities nc;
try {
- nc = ConnectivityManager.networkCapabilitiesForType(type);
+ nc = networkCapabilitiesForType(type);
} catch (IllegalArgumentException iae) {
Log.e(TAG, "No NetworkCapabilities mapping for legacy type: " + type);
continue;
@@ -572,4 +567,28 @@
return null;
}
+
+ /**
+ * Given a legacy type (TYPE_WIFI, ...) returns the corresponding NetworkCapabilities instance.
+ * This function is used for deprecated legacy type and be disabled by default.
+ */
+ @VisibleForTesting
+ public static NetworkCapabilities networkCapabilitiesForType(int type) {
+ final NetworkCapabilities nc = new NetworkCapabilities();
+
+ // Map from type to transports.
+ final int notFound = -1;
+ final int transport = sLegacyTypeToTransport.get(type, notFound);
+ Preconditions.checkArgument(transport != notFound, "unknown legacy type: " + type);
+ nc.addTransportType(transport);
+
+ if (type == TYPE_MOBILE_DUN) {
+ nc.addCapability(NetworkCapabilities.NET_CAPABILITY_DUN);
+ // DUN is restricted network, see NetworkCapabilities#FORCE_RESTRICTED_CAPABILITIES.
+ nc.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_RESTRICTED);
+ } else {
+ nc.addCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET);
+ }
+ return nc;
+ }
}
diff --git a/Tethering/tests/unit/src/com/android/server/connectivity/tethering/UpstreamNetworkMonitorTest.java b/Tethering/tests/unit/src/com/android/server/connectivity/tethering/UpstreamNetworkMonitorTest.java
index c90abbb..5ed75bf 100644
--- a/Tethering/tests/unit/src/com/android/server/connectivity/tethering/UpstreamNetworkMonitorTest.java
+++ b/Tethering/tests/unit/src/com/android/server/connectivity/tethering/UpstreamNetworkMonitorTest.java
@@ -18,13 +18,14 @@
import static android.net.ConnectivityManager.TYPE_MOBILE_DUN;
import static android.net.ConnectivityManager.TYPE_MOBILE_HIPRI;
-import static android.net.ConnectivityManager.TYPE_NONE;
import static android.net.ConnectivityManager.TYPE_WIFI;
import static android.net.NetworkCapabilities.NET_CAPABILITY_DUN;
import static android.net.NetworkCapabilities.NET_CAPABILITY_INTERNET;
import static android.net.NetworkCapabilities.TRANSPORT_CELLULAR;
import static android.net.NetworkCapabilities.TRANSPORT_WIFI;
+import static com.android.server.connectivity.tethering.UpstreamNetworkMonitor.TYPE_NONE;
+
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertTrue;
@@ -538,13 +539,15 @@
mUNM.selectPreferredUpstreamType(preferredTypes));
verify(mEntitleMgr, times(1)).maybeRunProvisioning();
}
+
private void assertSatisfiesLegacyType(int legacyType, UpstreamNetworkState ns) {
if (legacyType == TYPE_NONE) {
assertTrue(ns == null);
return;
}
- final NetworkCapabilities nc = ConnectivityManager.networkCapabilitiesForType(legacyType);
+ final NetworkCapabilities nc =
+ UpstreamNetworkMonitor.networkCapabilitiesForType(legacyType);
assertTrue(nc.satisfiedByNetworkCapabilities(ns.networkCapabilities));
}