Disallow data when QNS switched the preference am: dbeef14164 (8f663184) · Commits · e / os / android_frameworks_opt_telephony

src/java/com/android/internal/telephony/dataconnection/AccessNetworksManager.java

+1 −1

Original line number	Diff line number	Diff line
		@@ -477,7 +477,7 @@ public class AccessNetworksManager extends Handler {
		pw.println("APN type "
		+ ApnSetting.getApnTypeStringInternal(mAvailableNetworks.keyAt(i))
		+ ": [" + Arrays.stream(mAvailableNetworks.valueAt(i))
		.mapToObj(type -> AccessNetworkType.toString(type))
		.mapToObj(AccessNetworkType::toString)
		.collect(Collectors.joining(",")) + "]");
		}
		pw.decreaseIndent();

src/java/com/android/internal/telephony/dataconnection/DataConnectionReasons.java

+27 −15

Original line number	Diff line number	Diff line
		@@ -50,12 +50,12 @@ public class DataConnectionReasons {
		public String toString() {
		StringBuilder reasonStr = new StringBuilder();
		if (mDataDisallowedReasonSet.size() > 0) {
		reasonStr.append("Data disallowed, reasons:");
		reasonStr.append("Data disallowed reasons:");
		for (DataDisallowedReasonType reason : mDataDisallowedReasonSet) {
		reasonStr.append(" ").append(reason);
		}
		} else {
		reasonStr.append("Data allowed, reason:");
		reasonStr.append("Data allowed reason:");
		reasonStr.append(" ").append(mDataAllowedReason);
		}
		return reasonStr.toString();
		@@ -100,9 +100,13 @@ public class DataConnectionReasons {
		// Disallowed reasons. There could be multiple reasons if data connection is not allowed.
		public enum DataDisallowedReasonType {
		// Soft failure reasons. Normally the reasons from users or policy settings.
		DATA_DISABLED(false), // Data is disabled by the user or policy.
		ROAMING_DISABLED(false), // Data roaming is disabled by the user.
		DEFAULT_DATA_UNSELECTED(false), // Default data not selected.

		// Data is disabled by the user or policy.
		DATA_DISABLED(false),
		// Data roaming is disabled by the user.
		ROAMING_DISABLED(false),
		// Default data not selected.
		DEFAULT_DATA_UNSELECTED(false),

		// Belows are all hard failure reasons.
		NOT_ATTACHED(true),
		@@ -113,19 +117,27 @@ public class DataConnectionReasons {
		UNDESIRED_POWER_STATE(true),
		INTERNAL_DATA_DISABLED(true),
		RADIO_DISABLED_BY_CARRIER(true),
		APN_NOT_CONNECTABLE(true), // Not in the right state for data call setup.
		DATA_IS_CONNECTING(true), // Data is in connecting state. No need to send another setup
		// request.
		DATA_IS_DISCONNECTING(true), // Data is being disconnected. Telephony will retry after
		// disconnected.
		DATA_ALREADY_CONNECTED(true), // Data is already connected. No need to setup data again.
		// Not in the right state for data call setup.
		APN_NOT_CONNECTABLE(true),
		// Data is in connecting state. No need to send another setup request.
		DATA_IS_CONNECTING(true),
		// Data is being disconnected. Telephony will retry after disconnected.
		DATA_IS_DISCONNECTING(true),
		// Data is already connected. No need to setup data again.
		DATA_ALREADY_CONNECTED(true),
		// certain APNs are not allowed on IWLAN in legacy mode.
		ON_IWLAN(true),
		// certain APNs are only allowed when the device is camped on NR.
		NOT_ON_NR(true),
		// Data is not allowed while device is in emergency callback mode.
		IN_ECBM(true),
		ON_OTHER_TRANSPORT(true), // When data retry occurs, the given APN type's preferred
		// transport might be already changed. In this case we
		// should disallow data retry.
		DATA_SERVICE_NOT_READY(true); // Underlying data service is not bound.
		// The given APN type's preferred transport has switched.
		ON_OTHER_TRANSPORT(true),
		// Underlying data service is not bound.
		DATA_SERVICE_NOT_READY(true),
		// Qualified networks service does not allow certain types of APN brought up on either
		// cellular or IWLAN.
		DISABLED_BY_QNS(true);

		private boolean mIsHardReason;

src/java/com/android/internal/telephony/dataconnection/DcTracker.java

+22 −0

Original line number	Diff line number	Diff line
		@@ -1437,6 +1437,19 @@ public class DcTracker extends Handler {
		}

		if (apnContext != null) {
		if (mPhone.getTransportManager().getPreferredTransport(
		apnContext.getApnTypeBitmask())
		== AccessNetworkConstants.TRANSPORT_TYPE_INVALID) {
		// If QNS explicitly specified this APN type is not allowed on either cellular or
		// IWLAN, we should not allow data setup.
		reasons.add(DataDisallowedReasonType.DISABLED_BY_QNS);
		} else if (mTransportType != mPhone.getTransportManager().getPreferredTransport(
		apnContext.getApnTypeBitmask())) {
		// If the latest preference has already switched to other transport, we should not
		// allow data setup.
		reasons.add(DataDisallowedReasonType.ON_OTHER_TRANSPORT);
		}

		// If the transport has been already switched to the other transport, we should not
		// allow the data setup. The only exception is the handover case, where we setup
		// handover data connection before switching the transport.
		@@ -1578,6 +1591,15 @@ public class DcTracker extends Handler {
		String logStr = "trySetupData for APN type " + apnContext.getApnType() + ", reason: "
		+ apnContext.getReason() + ", requestType=" + requestTypeToString(requestType)
		+ ". " + dataConnectionReasons.toString();
		if (dataConnectionReasons.contains(DataDisallowedReasonType.DISABLED_BY_QNS)
		\|\| dataConnectionReasons.contains(DataDisallowedReasonType.ON_OTHER_TRANSPORT)) {
		logStr += ", current transport=" + AccessNetworkConstants.transportTypeToString(
		mPhone.getTransportManager().getCurrentTransport(
		apnContext.getApnTypeBitmask()));
		logStr += ", preferred transport=" + AccessNetworkConstants.transportTypeToString(
		mPhone.getTransportManager().getPreferredTransport(
		apnContext.getApnTypeBitmask()));
		}
		if (DBG) log(logStr);
		apnContext.requestLog(logStr);
		if (!isDataAllowed) {

src/java/com/android/internal/telephony/dataconnection/TransportManager.java

+74 −12

Original line number	Diff line number	Diff line
		@@ -26,6 +26,7 @@ import android.os.RegistrantList;
		import android.os.SystemProperties;
		import android.telephony.AccessNetworkConstants;
		import android.telephony.AccessNetworkConstants.AccessNetworkType;
		import android.telephony.AccessNetworkConstants.TransportType;
		import android.telephony.Annotation.ApnType;
		import android.telephony.CarrierConfigManager;
		import android.telephony.data.ApnSetting;
		@@ -45,9 +46,10 @@ import java.io.FileDescriptor;
		import java.io.PrintWriter;
		import java.lang.annotation.Retention;
		import java.lang.annotation.RetentionPolicy;
		import java.util.ArrayDeque;
		import java.util.Arrays;
		import java.util.HashMap;
		import java.util.LinkedList;
		import java.util.Iterator;
		import java.util.List;
		import java.util.Map;
		import java.util.concurrent.ConcurrentHashMap;
		@@ -168,7 +170,7 @@ public class TransportManager extends Handler {
		/**
		* The queued available networks list.
		*/
		private final LinkedList<List<QualifiedNetworks>> mAvailableNetworksList;
		private final ArrayDeque<List<QualifiedNetworks>> mQueuedNetworksList;

		/**
		* The current transport of the APN type. The key is the APN type, and the value is the
		@@ -225,7 +227,7 @@ public class TransportManager extends Handler {
		mCurrentTransports = new ConcurrentHashMap<>();
		mPendingHandoverApns = new SparseIntArray();
		mHandoverNeededEventRegistrants = new RegistrantList();
		mAvailableNetworksList = new LinkedList<>();
		mQueuedNetworksList = new ArrayDeque<>();
		mLogTag = TransportManager.class.getSimpleName() + "-" + mPhone.getPhoneId();

		if (isInLegacyMode()) {
		@@ -249,7 +251,7 @@ public class TransportManager extends Handler {
		case EVENT_QUALIFIED_NETWORKS_CHANGED:
		AsyncResult ar = (AsyncResult) msg.obj;
		List<QualifiedNetworks> networks = (List<QualifiedNetworks>) ar.result;
		mAvailableNetworksList.add(networks);
		mQueuedNetworksList.add(networks);
		sendEmptyMessage(EVENT_UPDATE_AVAILABLE_NETWORKS);
		break;
		case EVENT_UPDATE_AVAILABLE_NETWORKS:
		@@ -333,12 +335,12 @@ public class TransportManager extends Handler {
		return;
		}

		if (mAvailableNetworksList.size() == 0) {
		if (mQueuedNetworksList.size() == 0) {
		log("Nothing in the available network list queue.");
		return;
		}

		List<QualifiedNetworks> networksList = mAvailableNetworksList.remove();
		List<QualifiedNetworks> networksList = mQueuedNetworksList.remove();
		logl("updateAvailableNetworks: " + networksList);
		for (QualifiedNetworks networks : networksList) {
		if (areNetworksValid(networks)) {
		@@ -379,7 +381,7 @@ public class TransportManager extends Handler {

		// If there are still pending available network changes, we
		// need to process the rest.
		if (mAvailableNetworksList.size() > 0) {
		if (mQueuedNetworksList.size() > 0) {
		sendEmptyMessage(EVENT_UPDATE_AVAILABLE_NETWORKS);
		}
		}));
		@@ -391,7 +393,7 @@ public class TransportManager extends Handler {
		}

		// If there are still pending available network changes, we need to process the rest.
		if (mAvailableNetworksList.size() > 0) {
		if (mQueuedNetworksList.size() > 0) {
		sendEmptyMessage(EVENT_UPDATE_AVAILABLE_NETWORKS);
		}
		}
		@@ -486,6 +488,51 @@ public class TransportManager extends Handler {
		}
		}

		/**
		* Get the latest preferred transport. Note that the current transport only changed after
		* handover is completed, and there might be queued update network requests not processed yet.
		* This method is used to get the latest preference sent from qualified networks service.
		*
		* @param apnType APN type
		* @return The preferred transport. {@link AccessNetworkConstants#TRANSPORT_TYPE_INVALID} if
		* unknown, unavailable, or QNS explicitly specifies data connection of the APN type should not
		* be brought up on either cellular or IWLAN.
		*/
		public @TransportType int getPreferredTransport(@ApnType int apnType) {
		// Since the latest updates from QNS is stored at the end of the queue, so if we want to
		// check what's the latest, we should iterate the queue reversely.
		Iterator<List<QualifiedNetworks>> it = mQueuedNetworksList.descendingIterator();
		while (it.hasNext()) {
		List<QualifiedNetworks> networksList = it.next();
		for (QualifiedNetworks networks : networksList) {
		if (networks.apnType == apnType) {
		if (networks.qualifiedNetworks.length > 0) {
		return ACCESS_NETWORK_TRANSPORT_TYPE_MAP.get(networks.qualifiedNetworks[0]);
		}
		// This is the case that QNS explicitly specifies no data allowed on neither
		// cellular nor IWLAN.
		return AccessNetworkConstants.TRANSPORT_TYPE_INVALID;
		}
		}
		}

		// if not found in the queue, see if it's in the current available networks.
		int[] currentNetworkList = mCurrentAvailableNetworks.get(apnType);
		if (currentNetworkList != null) {
		if (currentNetworkList.length > 0) {
		return ACCESS_NETWORK_TRANSPORT_TYPE_MAP.get(currentNetworkList[0]);
		}
		// This is the case that QNS explicitly specifies no data allowed on neither
		// cellular nor IWLAN.
		return AccessNetworkConstants.TRANSPORT_TYPE_INVALID;
		}

		// If no input from QNS, for example in legacy mode, the default preferred transport should
		// be cellular.
		return AccessNetworkConstants.TRANSPORT_TYPE_WWAN;
		}


		/**
		* Dump the state of transport manager
		*
		@@ -498,12 +545,27 @@ public class TransportManager extends Handler {
		pw.println(mLogTag);
		pw.increaseIndent();
		pw.println("mAvailableTransports=[" + Arrays.stream(mAvailableTransports)
		.mapToObj(type -> AccessNetworkConstants.transportTypeToString(type))
		.mapToObj(AccessNetworkConstants::transportTypeToString)
		.collect(Collectors.joining(",")) + "]");
		pw.println("mCurrentAvailableNetworks=" + mCurrentAvailableNetworks);
		pw.println("mAvailableNetworksList=" + mAvailableNetworksList);
		pw.println("mCurrentAvailableNetworks=");
		pw.increaseIndent();
		for (int i = 0; i < mCurrentAvailableNetworks.size(); i++) {
		pw.println("APN type "
		+ ApnSetting.getApnTypeStringInternal(mCurrentAvailableNetworks.keyAt(i))
		+ ": [" + Arrays.stream(mCurrentAvailableNetworks.valueAt(i))
		.mapToObj(AccessNetworkType::toString)
		.collect(Collectors.joining(",")) + "]");
		}
		pw.decreaseIndent();
		pw.println("mQueuedNetworksList=" + mQueuedNetworksList);
		pw.println("mPendingHandoverApns=" + mPendingHandoverApns);
		pw.println("mCurrentTransports=" + mCurrentTransports);
		pw.println("mCurrentTransports=");
		pw.increaseIndent();
		for (Map.Entry<Integer, Integer> entry : mCurrentTransports.entrySet()) {
		pw.println("APN type " + ApnSetting.getApnTypeStringInternal(entry.getKey())
		+ ": " + AccessNetworkConstants.transportTypeToString(entry.getValue()));
		}
		pw.decreaseIndent();
		pw.println("isInLegacy=" + isInLegacyMode());
		pw.println("IWLAN operation mode="
		+ SystemProperties.get(SYSTEM_PROPERTIES_IWLAN_OPERATION_MODE));

tests/telephonytests/src/com/android/internal/telephony/dataconnection/DcTrackerTest.java

+2 −0

Original line number	Diff line number	Diff line
		@@ -684,6 +684,8 @@ public class DcTrackerTest extends TelephonyTest {
		Settings.Global.putInt(mContext.getContentResolver(),
		Settings.Global.DATA_STALL_RECOVERY_ON_BAD_NETWORK, 0);

		doReturn(AccessNetworkConstants.TRANSPORT_TYPE_WWAN).when(mTransportManager)
		.getPreferredTransport(anyInt());
		doReturn(PhoneConstants.State.IDLE).when(mCT).getState();
		doReturn(true).when(mSST).getDesiredPowerState();
		doReturn(true).when(mSST).getPowerStateFromCarrier();