Merge "Limit VCNs to one running at a given time" into sc-dev am: dd6c887985 (d3f13bb5) · Commits · e / os / android_frameworks_base

services/core/java/com/android/server/VcnManagementService.java

+55 −11

Original line number	Diff line number	Diff line
		@@ -24,6 +24,7 @@ import static android.net.vcn.VcnManager.VCN_STATUS_CODE_ACTIVE;
		import static android.net.vcn.VcnManager.VCN_STATUS_CODE_INACTIVE;
		import static android.net.vcn.VcnManager.VCN_STATUS_CODE_NOT_CONFIGURED;
		import static android.net.vcn.VcnManager.VCN_STATUS_CODE_SAFE_MODE;
		import static android.telephony.SubscriptionManager.isValidSubscriptionId;

		import static com.android.server.vcn.TelephonySubscriptionTracker.TelephonySubscriptionSnapshot;
		import static com.android.server.vcn.TelephonySubscriptionTracker.TelephonySubscriptionTrackerCallback;
		@@ -435,6 +436,15 @@ public class VcnManagementService extends IVcnManagementService.Stub {
		}
		}

		private boolean isActiveSubGroup(
		@NonNull ParcelUuid subGrp, @NonNull TelephonySubscriptionSnapshot snapshot) {
		if (subGrp == null \|\| snapshot == null) {
		return false;
		}

		return Objects.equals(subGrp, snapshot.getActiveDataSubscriptionGroup());
		}

		private class VcnSubscriptionTrackerCallback implements TelephonySubscriptionTrackerCallback {
		/**
		* Handles subscription group changes, as notified by {@link TelephonySubscriptionTracker}
		@@ -452,28 +462,49 @@ public class VcnManagementService extends IVcnManagementService.Stub {

		// Start any VCN instances as necessary
		for (Entry<ParcelUuid, VcnConfig> entry : mConfigs.entrySet()) {
		final ParcelUuid subGrp = entry.getKey();

		// TODO(b/193687515): Support multiple VCNs active at the same time
		if (snapshot.packageHasPermissionsForSubscriptionGroup(
		entry.getKey(), entry.getValue().getProvisioningPackageName())) {
		if (!mVcns.containsKey(entry.getKey())) {
		startVcnLocked(entry.getKey(), entry.getValue());
		subGrp, entry.getValue().getProvisioningPackageName())
		&& isActiveSubGroup(subGrp, snapshot)) {
		if (!mVcns.containsKey(subGrp)) {
		startVcnLocked(subGrp, entry.getValue());
		}

		// Cancel any scheduled teardowns for active subscriptions
		mHandler.removeCallbacksAndMessages(mVcns.get(entry.getKey()));
		mHandler.removeCallbacksAndMessages(mVcns.get(subGrp));
		}
		}

		// Schedule teardown of any VCN instances that have lost carrier privileges (after a
		// delay)
		for (Entry<ParcelUuid, Vcn> entry : mVcns.entrySet()) {
		final VcnConfig config = mConfigs.get(entry.getKey());
		final ParcelUuid subGrp = entry.getKey();
		final VcnConfig config = mConfigs.get(subGrp);

		final boolean isActiveSubGrp = isActiveSubGroup(subGrp, snapshot);
		final boolean isValidActiveDataSubIdNotInVcnSubGrp =
		isValidSubscriptionId(snapshot.getActiveDataSubscriptionId())
		&& !isActiveSubGroup(subGrp, snapshot);

		// TODO(b/193687515): Support multiple VCNs active at the same time
		if (config == null
		\|\| !snapshot.packageHasPermissionsForSubscriptionGroup(
		entry.getKey(), config.getProvisioningPackageName())) {
		final ParcelUuid uuidToTeardown = entry.getKey();
		subGrp, config.getProvisioningPackageName())
		\|\| !isActiveSubGrp) {
		final ParcelUuid uuidToTeardown = subGrp;
		final Vcn instanceToTeardown = entry.getValue();

		// TODO(b/193687515): Support multiple VCNs active at the same time
		// If directly switching to a subscription not in the current group,
		// teardown immediately to prevent other subscription's network from being
		// outscored by the VCN. Otherwise, teardown after a delay to ensure that
		// SIM profile switches do not trigger the VCN to cycle.
		final long teardownDelayMs =
		isValidActiveDataSubIdNotInVcnSubGrp
		? 0
		: CARRIER_PRIVILEGES_LOST_TEARDOWN_DELAY_MS;
		mHandler.postDelayed(() -> {
		synchronized (mLock) {
		// Guard against case where this is run after a old instance was
		@@ -489,7 +520,7 @@ public class VcnManagementService extends IVcnManagementService.Stub {
		uuidToTeardown, VCN_STATUS_CODE_INACTIVE);
		}
		}
		}, instanceToTeardown, CARRIER_PRIVILEGES_LOST_TEARDOWN_DELAY_MS);
		}, instanceToTeardown, teardownDelayMs);
		} else {
		// If this VCN's status has not changed, update it with the new snapshot
		entry.getValue().updateSubscriptionSnapshot(mLastSnapshot);
		@@ -553,8 +584,13 @@ public class VcnManagementService extends IVcnManagementService.Stub {
		private void startVcnLocked(@NonNull ParcelUuid subscriptionGroup, @NonNull VcnConfig config) {
		logDbg("Starting VCN config for subGrp: " + subscriptionGroup);

		// TODO(b/176939047): Support multiple VCNs active at the same time, or limit to one active
		// VCN.
		// TODO(b/193687515): Support multiple VCNs active at the same time
		if (!mVcns.isEmpty()) {
		// Only one VCN supported at a time; teardown all others before starting new one
		for (ParcelUuid uuidToTeardown : mVcns.keySet()) {
		stopVcnLocked(uuidToTeardown);
		}
		}

		final VcnCallbackImpl vcnCallback = new VcnCallbackImpl(subscriptionGroup);

		@@ -582,9 +618,12 @@ public class VcnManagementService extends IVcnManagementService.Stub {
		final Vcn vcn = mVcns.get(subscriptionGroup);
		vcn.updateConfig(config);
		} else {
		// TODO(b/193687515): Support multiple VCNs active at the same time
		if (isActiveSubGroup(subscriptionGroup, mLastSnapshot)) {
		startVcnLocked(subscriptionGroup, config);
		}
		}
		}

		/**
		* Sets a VCN config for a given subscription group.
		@@ -1007,6 +1046,11 @@ public class VcnManagementService extends IVcnManagementService.Stub {
		}
		}

		@VisibleForTesting(visibility = Visibility.PRIVATE)
		void setLastSnapshot(@NonNull TelephonySubscriptionSnapshot snapshot) {
		mLastSnapshot = Objects.requireNonNull(snapshot);
		}

		private void logVdbg(String msg) {
		if (VDBG) {
		Slog.v(TAG, msg);

services/core/java/com/android/server/vcn/TelephonySubscriptionTracker.java

+51 −6

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@ import android.telephony.CarrierConfigManager;
		import android.telephony.SubscriptionInfo;
		import android.telephony.SubscriptionManager;
		import android.telephony.SubscriptionManager.OnSubscriptionsChangedListener;
		import android.telephony.TelephonyCallback;
		import android.telephony.TelephonyManager;
		import android.util.ArrayMap;
		import android.util.ArraySet;
		@@ -85,6 +86,8 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {
		@NonNull private final SubscriptionManager mSubscriptionManager;
		@NonNull private final CarrierConfigManager mCarrierConfigManager;

		@NonNull private final ActiveDataSubscriptionIdListener mActiveDataSubIdListener;

		// TODO (Android T+): Add ability to handle multiple subIds per slot.
		@NonNull private final Map<Integer, Integer> mReadySubIdsBySlotId = new HashMap<>();
		@NonNull private final OnSubscriptionsChangedListener mSubscriptionChangedListener;
		@@ -112,6 +115,7 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {
		mTelephonyManager = mContext.getSystemService(TelephonyManager.class);
		mSubscriptionManager = mContext.getSystemService(SubscriptionManager.class);
		mCarrierConfigManager = mContext.getSystemService(CarrierConfigManager.class);
		mActiveDataSubIdListener = new ActiveDataSubscriptionIdListener();

		mSubscriptionChangedListener =
		new OnSubscriptionsChangedListener() {
		@@ -124,16 +128,20 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {

		/** Registers the receivers, and starts tracking subscriptions. */
		public void register() {
		final HandlerExecutor executor = new HandlerExecutor(mHandler);

		mContext.registerReceiver(
		this, new IntentFilter(ACTION_CARRIER_CONFIG_CHANGED), null, mHandler);
		mSubscriptionManager.addOnSubscriptionsChangedListener(
		new HandlerExecutor(mHandler), mSubscriptionChangedListener);
		executor, mSubscriptionChangedListener);
		mTelephonyManager.registerTelephonyCallback(executor, mActiveDataSubIdListener);
		}

		/** Unregisters the receivers, and stops tracking subscriptions. */
		public void unregister() {
		mContext.unregisterReceiver(this);
		mSubscriptionManager.removeOnSubscriptionsChangedListener(mSubscriptionChangedListener);
		mTelephonyManager.unregisterTelephonyCallback(mActiveDataSubIdListener);
		}

		/**
		@@ -185,7 +193,8 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {
		}

		final TelephonySubscriptionSnapshot newSnapshot =
		new TelephonySubscriptionSnapshot(newSubIdToInfoMap, privilegedPackages);
		new TelephonySubscriptionSnapshot(
		mDeps.getActiveDataSubscriptionId(), newSubIdToInfoMap, privilegedPackages);

		// If snapshot was meaningfully updated, fire the callback
		if (!newSnapshot.equals(mCurrentSnapshot)) {
		@@ -242,16 +251,20 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {

		/** TelephonySubscriptionSnapshot is a class containing info about active subscriptions */
		public static class TelephonySubscriptionSnapshot {
		private final int mActiveDataSubId;
		private final Map<Integer, SubscriptionInfo> mSubIdToInfoMap;
		private final Map<ParcelUuid, Set<String>> mPrivilegedPackages;

		public static final TelephonySubscriptionSnapshot EMPTY_SNAPSHOT =
		new TelephonySubscriptionSnapshot(Collections.emptyMap(), Collections.emptyMap());
		new TelephonySubscriptionSnapshot(
		INVALID_SUBSCRIPTION_ID, Collections.emptyMap(), Collections.emptyMap());

		@VisibleForTesting(visibility = Visibility.PRIVATE)
		TelephonySubscriptionSnapshot(
		int activeDataSubId,
		@NonNull Map<Integer, SubscriptionInfo> subIdToInfoMap,
		@NonNull Map<ParcelUuid, Set<String>> privilegedPackages) {
		mActiveDataSubId = activeDataSubId;
		Objects.requireNonNull(subIdToInfoMap, "subIdToInfoMap was null");
		Objects.requireNonNull(privilegedPackages, "privilegedPackages was null");

		@@ -265,6 +278,22 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {
		mPrivilegedPackages = Collections.unmodifiableMap(unmodifiableInnerSets);
		}

		/** Returns the active subscription ID. May be INVALID_SUBSCRIPTION_ID */
		public int getActiveDataSubscriptionId() {
		return mActiveDataSubId;
		}

		/** Returns the active subscription group */
		@Nullable
		public ParcelUuid getActiveDataSubscriptionGroup() {
		final SubscriptionInfo info = mSubIdToInfoMap.get(getActiveDataSubscriptionId());
		if (info == null) {
		return null;
		}

		return info.getGroupUuid();
		}

		/** Returns the active subscription groups */
		@NonNull
		public Set<ParcelUuid> getActiveSubscriptionGroups() {
		@@ -313,7 +342,7 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {

		@Override
		public int hashCode() {
		return Objects.hash(mSubIdToInfoMap, mPrivilegedPackages);
		return Objects.hash(mActiveDataSubId, mSubIdToInfoMap, mPrivilegedPackages);
		}

		@Override
		@@ -324,7 +353,8 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {

		final TelephonySubscriptionSnapshot other = (TelephonySubscriptionSnapshot) obj;

		return mSubIdToInfoMap.equals(other.mSubIdToInfoMap)
		return mActiveDataSubId == other.mActiveDataSubId
		&& mSubIdToInfoMap.equals(other.mSubIdToInfoMap)
		&& mPrivilegedPackages.equals(other.mPrivilegedPackages);
		}

		@@ -333,6 +363,7 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {
		pw.println("TelephonySubscriptionSnapshot:");
		pw.increaseIndent();

		pw.println("mActiveDataSubId: " + mActiveDataSubId);
		pw.println("mSubIdToInfoMap: " + mSubIdToInfoMap);
		pw.println("mPrivilegedPackages: " + mPrivilegedPackages);

		@@ -342,7 +373,8 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {
		@Override
		public String toString() {
		return "TelephonySubscriptionSnapshot{ "
		+ "mSubIdToInfoMap=" + mSubIdToInfoMap
		+ "mActiveDataSubId=" + mActiveDataSubId
		+ ", mSubIdToInfoMap=" + mSubIdToInfoMap
		+ ", mPrivilegedPackages=" + mPrivilegedPackages
		+ " }";
		}
		@@ -362,6 +394,14 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {
		void onNewSnapshot(@NonNull TelephonySubscriptionSnapshot snapshot);
		}

		private class ActiveDataSubscriptionIdListener extends TelephonyCallback
		implements TelephonyCallback.ActiveDataSubscriptionIdListener {
		@Override
		public void onActiveDataSubscriptionIdChanged(int subId) {
		handleSubscriptionsChanged();
		}
		}

		/** External static dependencies for test injection */
		@VisibleForTesting(visibility = Visibility.PRIVATE)
		public static class Dependencies {
		@@ -369,5 +409,10 @@ public class TelephonySubscriptionTracker extends BroadcastReceiver {
		public boolean isConfigForIdentifiedCarrier(PersistableBundle bundle) {
		return CarrierConfigManager.isConfigForIdentifiedCarrier(bundle);
		}

		/** Gets the active Subscription ID */
		public int getActiveDataSubscriptionId() {
		return SubscriptionManager.getActiveDataSubscriptionId();
		}
		}
		}

tests/vcn/java/com/android/server/VcnManagementServiceTest.java

+204 −24

File changed.

Preview size limit exceeded, changes collapsed.

tests/vcn/java/com/android/server/vcn/TelephonySubscriptionTrackerTest.java

+42 −3

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@ import static android.telephony.CarrierConfigManager.EXTRA_SLOT_INDEX;
		import static android.telephony.CarrierConfigManager.EXTRA_SUBSCRIPTION_INDEX;
		import static android.telephony.SubscriptionManager.INVALID_SIM_SLOT_INDEX;
		import static android.telephony.SubscriptionManager.INVALID_SUBSCRIPTION_ID;
		import static android.telephony.TelephonyCallback.ActiveDataSubscriptionIdListener;

		import static com.android.server.vcn.TelephonySubscriptionTracker.TelephonySubscriptionSnapshot;
		import static com.android.server.vcn.TelephonySubscriptionTracker.TelephonySubscriptionTrackerCallback;
		@@ -54,6 +55,7 @@ import android.telephony.CarrierConfigManager;
		import android.telephony.SubscriptionInfo;
		import android.telephony.SubscriptionManager;
		import android.telephony.SubscriptionManager.OnSubscriptionsChangedListener;
		import android.telephony.TelephonyCallback;
		import android.telephony.TelephonyManager;
		import android.util.ArraySet;

		@@ -178,6 +180,14 @@ public class TelephonySubscriptionTrackerTest {
		return captor.getValue();
		}

		private ActiveDataSubscriptionIdListener getActiveDataSubscriptionIdListener() {
		final ArgumentCaptor<TelephonyCallback> captor =
		ArgumentCaptor.forClass(TelephonyCallback.class);
		verify(mTelephonyManager).registerTelephonyCallback(any(), captor.capture());

		return (ActiveDataSubscriptionIdListener) captor.getValue();
		}

		private Intent buildTestBroadcastIntent(boolean hasValidSubscription) {
		Intent intent = new Intent(ACTION_CARRIER_CONFIG_CHANGED);
		intent.putExtra(EXTRA_SLOT_INDEX, TEST_SIM_SLOT_INDEX);
		@@ -196,7 +206,14 @@ public class TelephonySubscriptionTrackerTest {
		private TelephonySubscriptionSnapshot buildExpectedSnapshot(
		Map<Integer, SubscriptionInfo> subIdToInfoMap,
		Map<ParcelUuid, Set<String>> privilegedPackages) {
		return new TelephonySubscriptionSnapshot(subIdToInfoMap, privilegedPackages);
		return new TelephonySubscriptionSnapshot(0, subIdToInfoMap, privilegedPackages);
		}

		private TelephonySubscriptionSnapshot buildExpectedSnapshot(
		int activeSubId,
		Map<Integer, SubscriptionInfo> subIdToInfoMap,
		Map<ParcelUuid, Set<String>> privilegedPackages) {
		return new TelephonySubscriptionSnapshot(activeSubId, subIdToInfoMap, privilegedPackages);
		}

		private void verifyNoActiveSubscriptions() {
		@@ -249,6 +266,26 @@ public class TelephonySubscriptionTrackerTest {
		verifyNoActiveSubscriptions();
		}

		@Test
		public void testOnSubscriptionsChangedFired_onActiveSubIdsChanged() throws Exception {
		setupReadySubIds();
		setPrivilegedPackagesForMock(Collections.emptyList());

		doReturn(TEST_SUBSCRIPTION_ID_2).when(mDeps).getActiveDataSubscriptionId();
		final ActiveDataSubscriptionIdListener listener = getActiveDataSubscriptionIdListener();
		listener.onActiveDataSubscriptionIdChanged(TEST_SUBSCRIPTION_ID_2);
		mTestLooper.dispatchAll();

		ArgumentCaptor<TelephonySubscriptionSnapshot> snapshotCaptor =
		ArgumentCaptor.forClass(TelephonySubscriptionSnapshot.class);
		verify(mCallback).onNewSnapshot(snapshotCaptor.capture());

		TelephonySubscriptionSnapshot snapshot = snapshotCaptor.getValue();
		assertNotNull(snapshot);
		assertEquals(TEST_SUBSCRIPTION_ID_2, snapshot.getActiveDataSubscriptionId());
		assertEquals(TEST_PARCEL_UUID, snapshot.getActiveDataSubscriptionGroup());
		}

		@Test
		public void testOnSubscriptionsChangedFired_WithReadySubidsNoPrivilegedPackages()
		throws Exception {
		@@ -371,7 +408,8 @@ public class TelephonySubscriptionTrackerTest {
		@Test
		public void testTelephonySubscriptionSnapshotGetGroupForSubId() throws Exception {
		final TelephonySubscriptionSnapshot snapshot =
		new TelephonySubscriptionSnapshot(TEST_SUBID_TO_INFO_MAP, emptyMap());
		new TelephonySubscriptionSnapshot(
		TEST_SUBSCRIPTION_ID_1, TEST_SUBID_TO_INFO_MAP, emptyMap());

		assertEquals(TEST_PARCEL_UUID, snapshot.getGroupForSubId(TEST_SUBSCRIPTION_ID_1));
		assertEquals(TEST_PARCEL_UUID, snapshot.getGroupForSubId(TEST_SUBSCRIPTION_ID_2));
		@@ -380,7 +418,8 @@ public class TelephonySubscriptionTrackerTest {
		@Test
		public void testTelephonySubscriptionSnapshotGetAllSubIdsInGroup() throws Exception {
		final TelephonySubscriptionSnapshot snapshot =
		new TelephonySubscriptionSnapshot(TEST_SUBID_TO_INFO_MAP, emptyMap());
		new TelephonySubscriptionSnapshot(
		TEST_SUBSCRIPTION_ID_1, TEST_SUBID_TO_INFO_MAP, emptyMap());

		assertEquals(
		new ArraySet<>(Arrays.asList(TEST_SUBSCRIPTION_ID_1, TEST_SUBSCRIPTION_ID_2)),

tests/vcn/java/com/android/server/vcn/VcnGatewayConnectionTestBase.java

+3 −1

Original line number	Diff line number	Diff line
		@@ -127,7 +127,9 @@ public class VcnGatewayConnectionTestBase {

		protected static final TelephonySubscriptionSnapshot TEST_SUBSCRIPTION_SNAPSHOT =
		new TelephonySubscriptionSnapshot(
		Collections.singletonMap(TEST_SUB_ID, TEST_SUB_INFO), Collections.EMPTY_MAP);
		TEST_SUB_ID,
		Collections.singletonMap(TEST_SUB_ID, TEST_SUB_INFO),
		Collections.EMPTY_MAP);

		@NonNull protected final Context mContext;
		@NonNull protected final TestLooper mTestLooper;