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Merge "Add onSupportedTetheringType callback" am: c4379c2440

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Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/1940847

Change-Id: I3b2e1cc4a1772a57b10ee6e1cfd50e477689cbda
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>
This commit is contained in:
Mark Chien
2022-04-20 04:07:02 +00:00
committed by Automerger Merge Worker
parent 320e5bac0c c4379c2440
commit fb8dc55f47
6 changed files with 200 additions and 50 deletions
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1
Tethering/common/TetheringLib/src/android/net/ITetheringEventCallback.aidl
View File

@@ -36,4 +36,5 @@ oneway interface ITetheringEventCallback
void onTetherStatesChanged(in TetherStatesParcel states);
void onTetherClientsChanged(in List<TetheredClient> clients);
void onOffloadStatusChanged(int status);
void onSupportedTetheringTypes(long supportedBitmap);
}

2
Tethering/common/TetheringLib/src/android/net/TetheringCallbackStartedParcel.aidl
View File

@@ -26,7 +26,7 @@ import android.net.TetherStatesParcel;
* @hide
*/
parcelable TetheringCallbackStartedParcel {
boolean tetheringSupported;
long supportedTypes;
Network upstreamNetwork;
TetheringConfigurationParcel config;
TetherStatesParcel states;

54
Tethering/common/TetheringLib/src/android/net/TetheringManager.java
View File

@@ -183,6 +183,12 @@ public class TetheringManager {
*/
public static final int TETHERING_WIGIG = 6;
/**
* The int value of last tethering type.
* @hide
*/
public static final int MAX_TETHERING_TYPE = TETHERING_WIGIG;
/** @hide */
@Retention(RetentionPolicy.SOURCE)
@IntDef(value = {
@@ -519,6 +525,9 @@ public class TetheringManager {
}
}
@Override
public void onSupportedTetheringTypes(long supportedBitmap) { }
@Override
public void onUpstreamChanged(Network network) { }
@@ -1030,6 +1039,19 @@ public class TetheringManager {
* upstream status.
*/
public interface TetheringEventCallback {
/**
* Called when tethering supported status changed.
*
* <p>This callback will be called immediately after the callback is
* registered, and never be called if there is changes afterward.
*
* <p>Tethering may be disabled via system properties, device configuration, or device
* policy restrictions.
*
* @param supported whether any tethering type is supported.
*/
default void onTetheringSupported(boolean supported) {}
/**
* Called when tethering supported status changed.
*
@@ -1039,9 +1061,10 @@ public class TetheringManager {
* <p>Tethering may be disabled via system properties, device configuration, or device
* policy restrictions.
*
* @param supported The new supported status
* @param supportedTypes a set of @TetheringType which is supported.
* @hide
*/
default void onTetheringSupported(boolean supported) {}
default void onSupportedTetheringTypes(@NonNull Set<Integer> supportedTypes) {}
/**
* Called when tethering upstream changed.
@@ -1339,7 +1362,8 @@ public class TetheringManager {
@Override
public void onCallbackStarted(TetheringCallbackStartedParcel parcel) {
executor.execute(() -> {
callback.onTetheringSupported(parcel.tetheringSupported);
callback.onSupportedTetheringTypes(unpackBits(parcel.supportedTypes));
callback.onTetheringSupported(parcel.supportedTypes != 0);
callback.onUpstreamChanged(parcel.upstreamNetwork);
sendErrorCallbacks(parcel.states);
sendRegexpsChanged(parcel.config);
@@ -1358,6 +1382,13 @@ public class TetheringManager {
});
}
@Override
public void onSupportedTetheringTypes(long supportedBitmap) {
executor.execute(() -> {
callback.onSupportedTetheringTypes(unpackBits(supportedBitmap));
});
}
private void sendRegexpsChanged(TetheringConfigurationParcel parcel) {
callback.onTetherableInterfaceRegexpsChanged(new TetheringInterfaceRegexps(
parcel.tetherableBluetoothRegexs,
@@ -1395,6 +1426,23 @@ public class TetheringManager {
}
}
/**
* Unpack bitmap to a set of bit position intergers.
* @hide
*/
public static ArraySet<Integer> unpackBits(long val) {
final ArraySet<Integer> result = new ArraySet<>(Long.bitCount(val));
int bitPos = 0;
while (val != 0) {
if ((val & 1) == 1) result.add(bitPos);
val = val >>> 1;
bitPos++;
}
return result;
}
/**
* Remove tethering event callback previously registered with
* {@link #registerTetheringEventCallback}.

91
Tethering/src/com/android/networkstack/tethering/Tethering.java
View File

@@ -278,6 +278,11 @@ public class Tethering {
private BluetoothPan mBluetoothPan;
private PanServiceListener mBluetoothPanListener;
private ArrayList<Pair<Boolean, IIntResultListener>> mPendingPanRequests;
// AIDL doesn't support Set<Integer>. Maintain a int bitmap here. When the bitmap is passed to
// TetheringManager, TetheringManager would convert it to a set of Integer types.
// mSupportedTypeBitmap should always be updated inside tethering internal thread but it may be
// read from binder thread which called TetheringService directly.
private volatile long mSupportedTypeBitmap;
public Tethering(TetheringDependencies deps) {
mLog.mark("Tethering.constructed");
@@ -494,6 +499,8 @@ public class Tethering {
mUpstreamNetworkMonitor.setUpstreamConfig(mConfig.chooseUpstreamAutomatically,
mConfig.isDunRequired);
reportConfigurationChanged(mConfig.toStableParcelable());
updateSupportedDownstreams(mConfig);
}
private void maybeDunSettingChanged() {
@@ -1513,26 +1520,6 @@ public class Tethering {
return mConfig;
}
boolean hasAnySupportedDownstream() {
if ((mConfig.tetherableUsbRegexs.length != 0)
|| (mConfig.tetherableWifiRegexs.length != 0)
|| (mConfig.tetherableBluetoothRegexs.length != 0)) {
return true;
}
// Before T, isTetheringSupported would return true if wifi, usb and bluetooth tethering are
// disabled (whole tethering settings would be hidden). This means tethering would also not
// support wifi p2p, ethernet tethering and mirrorlink. This is wrong but probably there are
// some devices in the field rely on this to disable tethering entirely.
if (!SdkLevel.isAtLeastT()) return false;
return (mConfig.tetherableWifiP2pRegexs.length != 0)
|| (mConfig.tetherableNcmRegexs.length != 0)
|| isEthernetSupported();
}
// TODO: using EtherentManager new API to check whether ethernet is supported when the API is
// ready to use.
private boolean isEthernetSupported() {
return mContext.getSystemService(Context.ETHERNET_SERVICE) != null;
}
@@ -2322,7 +2309,7 @@ public class Tethering {
mHandler.post(() -> {
mTetheringEventCallbacks.register(callback, new CallbackCookie(hasListPermission));
final TetheringCallbackStartedParcel parcel = new TetheringCallbackStartedParcel();
parcel.tetheringSupported = isTetheringSupported();
parcel.supportedTypes = mSupportedTypeBitmap;
parcel.upstreamNetwork = mTetherUpstream;
parcel.config = mConfig.toStableParcelable();
parcel.states =
@@ -2361,6 +2348,22 @@ public class Tethering {
});
}
private void reportTetheringSupportedChange(final long supportedBitmap) {
final int length = mTetheringEventCallbacks.beginBroadcast();
try {
for (int i = 0; i < length; i++) {
try {
mTetheringEventCallbacks.getBroadcastItem(i).onSupportedTetheringTypes(
supportedBitmap);
} catch (RemoteException e) {
// Not really very much to do here.
}
}
} finally {
mTetheringEventCallbacks.finishBroadcast();
}
}
private void reportUpstreamChanged(UpstreamNetworkState ns) {
final int length = mTetheringEventCallbacks.beginBroadcast();
final Network network = (ns != null) ? ns.network : null;
@@ -2445,18 +2448,56 @@ public class Tethering {
}
}
private void updateSupportedDownstreams(final TetheringConfiguration config) {
final long preSupportedBitmap = mSupportedTypeBitmap;
if (!isTetheringAllowed() || mEntitlementMgr.isProvisioningNeededButUnavailable()) {
mSupportedTypeBitmap = 0;
} else {
mSupportedTypeBitmap = makeSupportedDownstreams(config);
}
if (preSupportedBitmap != mSupportedTypeBitmap) {
reportTetheringSupportedChange(mSupportedTypeBitmap);
}
}
private long makeSupportedDownstreams(final TetheringConfiguration config) {
long types = 0;
if (config.tetherableUsbRegexs.length != 0) types |= (1 << TETHERING_USB);
if (config.tetherableWifiRegexs.length != 0) types |= (1 << TETHERING_WIFI);
if (config.tetherableBluetoothRegexs.length != 0) types |= (1 << TETHERING_BLUETOOTH);
// Before T, isTetheringSupported would return true if wifi, usb and bluetooth tethering are
// disabled (whole tethering settings would be hidden). This means tethering would also not
// support wifi p2p, ethernet tethering and mirrorlink. This is wrong but probably there are
// some devices in the field rely on this to disable tethering entirely.
if (!SdkLevel.isAtLeastT() && types == 0) return types;
if (config.tetherableNcmRegexs.length != 0) types |= (1 << TETHERING_NCM);
if (config.tetherableWifiP2pRegexs.length != 0) types |= (1 << TETHERING_WIFI_P2P);
if (isEthernetSupported()) types |= (1 << TETHERING_ETHERNET);
return types;
}
// if ro.tether.denied = true we default to no tethering
// gservices could set the secure setting to 1 though to enable it on a build where it
// had previously been turned off.
boolean isTetheringSupported() {
private boolean isTetheringAllowed() {
final int defaultVal = mDeps.isTetheringDenied() ? 0 : 1;
final boolean tetherSupported = Settings.Global.getInt(mContext.getContentResolver(),
Settings.Global.TETHER_SUPPORTED, defaultVal) != 0;
final boolean tetherEnabledInSettings = tetherSupported
return tetherSupported
&& !mUserManager.hasUserRestriction(UserManager.DISALLOW_CONFIG_TETHERING);
}
return tetherEnabledInSettings && hasAnySupportedDownstream()
&& !mEntitlementMgr.isProvisioningNeededButUnavailable();
boolean isTetheringSupported() {
return mSupportedTypeBitmap > 0;
}
private void dumpBpf(IndentingPrintWriter pw) {

26
Tethering/tests/integration/src/android/net/EthernetTetheringTest.java
View File

@@ -168,12 +168,13 @@ public class EthernetTetheringTest {
mUiAutomation.adoptShellPermissionIdentity(
MANAGE_TEST_NETWORKS, NETWORK_SETTINGS, TETHER_PRIVILEGED, ACCESS_NETWORK_STATE,
CONNECTIVITY_USE_RESTRICTED_NETWORKS, DUMP);
mRunTests = mTm.isTetheringSupported() && mEm != null;
assumeTrue(mRunTests);
mHandlerThread = new HandlerThread(getClass().getSimpleName());
mHandlerThread.start();
mHandler = new Handler(mHandlerThread.getLooper());
mRunTests = isEthernetTetheringSupported();
assumeTrue(mRunTests);
mTetheredInterfaceRequester = new TetheredInterfaceRequester(mHandler, mEm);
}
@@ -201,7 +202,6 @@ public class EthernetTetheringTest {
mHandler.post(() -> reader.stop());
mDownstreamReader = null;
}
mHandlerThread.quitSafely();
mTetheredInterfaceRequester.release();
mEm.setIncludeTestInterfaces(false);
maybeDeleteTestInterface();
@@ -212,6 +212,7 @@ public class EthernetTetheringTest {
try {
if (mRunTests) cleanUp();
} finally {
mHandlerThread.quitSafely();
mUiAutomation.dropShellPermissionIdentity();
}
}
@@ -400,6 +401,23 @@ public class EthernetTetheringTest {
// client, which is not possible in this test.
}
private boolean isEthernetTetheringSupported() throws Exception {
final CompletableFuture<Boolean> future = new CompletableFuture<>();
final TetheringEventCallback callback = new TetheringEventCallback() {
@Override
public void onSupportedTetheringTypes(Set<Integer> supportedTypes) {
future.complete(supportedTypes.contains(TETHERING_ETHERNET));
}
};
try {
mTm.registerTetheringEventCallback(mHandler::post, callback);
return future.get(TIMEOUT_MS, TimeUnit.MILLISECONDS);
} finally {
mTm.unregisterTetheringEventCallback(callback);
}
}
private static final class MyTetheringEventCallback implements TetheringEventCallback {
private final TetheringManager mTm;
private final CountDownLatch mTetheringStartedLatch = new CountDownLatch(1);

76
Tethering/tests/unit/src/com/android/networkstack/tethering/TetheringTest.java
View File

@@ -142,6 +142,7 @@ import android.net.TetheredClient.AddressInfo;
import android.net.TetheringCallbackStartedParcel;
import android.net.TetheringConfigurationParcel;
import android.net.TetheringInterface;
import android.net.TetheringManager;
import android.net.TetheringRequestParcel;
import android.net.dhcp.DhcpLeaseParcelable;
import android.net.dhcp.DhcpServerCallbacks;
@@ -175,6 +176,7 @@ import android.telephony.CarrierConfigManager;
import android.telephony.PhoneStateListener;
import android.telephony.TelephonyManager;
import android.test.mock.MockContentResolver;
import android.util.ArraySet;
import androidx.annotation.NonNull;
import androidx.test.filters.SmallTest;
@@ -211,6 +213,7 @@ import java.util.Arrays;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import java.util.Vector;
@RunWith(AndroidJUnit4.class)
@@ -1696,6 +1699,7 @@ public class TetheringTest {
private final ArrayList<TetherStatesParcel> mTetherStates = new ArrayList<>();
private final ArrayList<Integer> mOffloadStatus = new ArrayList<>();
private final ArrayList<List<TetheredClient>> mTetheredClients = new ArrayList<>();
private final ArrayList<Long> mSupportedBitmaps = new ArrayList<>();
// This function will remove the recorded callbacks, so it must be called once for
// each callback. If this is called after multiple callback, the order matters.
@@ -1748,6 +1752,10 @@ public class TetheringTest {
assertTrue(leases.containsAll(result));
}
public void expectSupportedTetheringTypes(Set<Integer> expectedTypes) {
assertEquals(expectedTypes, TetheringManager.unpackBits(mSupportedBitmaps.remove(0)));
}
@Override
public void onUpstreamChanged(Network network) {
mActualUpstreams.add(network);
@@ -1780,11 +1788,17 @@ public class TetheringTest {
mTetherStates.add(parcel.states);
mOffloadStatus.add(parcel.offloadStatus);
mTetheredClients.add(parcel.tetheredClients);
mSupportedBitmaps.add(parcel.supportedTypes);
}
@Override
public void onCallbackStopped(int errorCode) { }
@Override
public void onSupportedTetheringTypes(long supportedBitmap) {
mSupportedBitmaps.add(supportedBitmap);
}
public void assertNoUpstreamChangeCallback() {
assertTrue(mActualUpstreams.isEmpty());
}
@@ -2836,53 +2850,81 @@ public class TetheringTest {
runStopUSBTethering();
}
public static ArraySet<Integer> getAllSupportedTetheringTypes() {
return new ArraySet<>(new Integer[] { TETHERING_USB, TETHERING_NCM, TETHERING_WIFI,
TETHERING_WIFI_P2P, TETHERING_BLUETOOTH, TETHERING_ETHERNET });
}
@Test
public void testTetheringSupported() throws Exception {
final ArraySet<Integer> expectedTypes = getAllSupportedTetheringTypes();
// Check tethering is supported after initialization.
setTetheringSupported(true /* supported */);
updateConfigAndVerifySupported(true /* supported */);
TestTetheringEventCallback callback = new TestTetheringEventCallback();
mTethering.registerTetheringEventCallback(callback);
mLooper.dispatchAll();
updateConfigAndVerifySupported(callback, expectedTypes);
// Could disable tethering supported by settings.
Settings.Global.putInt(mContentResolver, Settings.Global.TETHER_SUPPORTED, 0);
updateConfigAndVerifySupported(false /* supported */);
updateConfigAndVerifySupported(callback, new ArraySet<>());
// Could disable tethering supported by user restriction.
setTetheringSupported(true /* supported */);
updateConfigAndVerifySupported(callback, expectedTypes);
when(mUserManager.hasUserRestriction(
UserManager.DISALLOW_CONFIG_TETHERING)).thenReturn(true);
updateConfigAndVerifySupported(false /* supported */);
updateConfigAndVerifySupported(callback, new ArraySet<>());
// Tethering is supported if it has any supported downstream.
setTetheringSupported(true /* supported */);
updateConfigAndVerifySupported(callback, expectedTypes);
// Usb tethering is not supported:
expectedTypes.remove(TETHERING_USB);
when(mResources.getStringArray(R.array.config_tether_usb_regexs))
.thenReturn(new String[0]);
updateConfigAndVerifySupported(true /* supported */);
updateConfigAndVerifySupported(callback, expectedTypes);
// Wifi tethering is not supported:
expectedTypes.remove(TETHERING_WIFI);
when(mResources.getStringArray(R.array.config_tether_wifi_regexs))
.thenReturn(new String[0]);
updateConfigAndVerifySupported(true /* supported */);
updateConfigAndVerifySupported(callback, expectedTypes);
// Bluetooth tethering is not supported:
expectedTypes.remove(TETHERING_BLUETOOTH);
when(mResources.getStringArray(R.array.config_tether_bluetooth_regexs))
.thenReturn(new String[0]);
if (isAtLeastT()) {
when(mResources.getStringArray(R.array.config_tether_bluetooth_regexs))
.thenReturn(new String[0]);
updateConfigAndVerifySupported(true /* supported */);
updateConfigAndVerifySupported(callback, expectedTypes);
// P2p tethering is not supported:
expectedTypes.remove(TETHERING_WIFI_P2P);
when(mResources.getStringArray(R.array.config_tether_wifi_p2p_regexs))
.thenReturn(new String[0]);
updateConfigAndVerifySupported(true /* supported */);
updateConfigAndVerifySupported(callback, expectedTypes);
// Ncm tethering is not supported:
expectedTypes.remove(TETHERING_NCM);
when(mResources.getStringArray(R.array.config_tether_ncm_regexs))
.thenReturn(new String[0]);
updateConfigAndVerifySupported(true /* supported */);
updateConfigAndVerifySupported(callback, expectedTypes);
// Ethernet tethering (last supported type) is not supported:
expectedTypes.remove(TETHERING_ETHERNET);
mForceEthernetServiceUnavailable = true;
updateConfigAndVerifySupported(false /* supported */);
updateConfigAndVerifySupported(callback, new ArraySet<>());
} else {
when(mResources.getStringArray(R.array.config_tether_bluetooth_regexs))
.thenReturn(new String[0]);
updateConfigAndVerifySupported(false /* supported */);
// If wifi, usb and bluetooth are all not supported, all the types are not supported.
expectedTypes.clear();
updateConfigAndVerifySupported(callback, expectedTypes);
}
}
private void updateConfigAndVerifySupported(boolean supported) {
private void updateConfigAndVerifySupported(final TestTetheringEventCallback callback,
final ArraySet<Integer> expectedTypes) {
sendConfigurationChanged();
assertEquals(supported, mTethering.isTetheringSupported());
assertEquals(expectedTypes.size() > 0, mTethering.isTetheringSupported());
callback.expectSupportedTetheringTypes(expectedTypes);
}
// TODO: Test that a request for hotspot mode doesn't interfere with an
// already operating tethering mode interface.