Merge "Temporary fix to prevent TEMPORARILY_NOT_METERED leak" (6364c19f) · Commits · e / os / android_frameworks_opt_telephony

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

+68 −8

Original line number	Diff line number	Diff line
		@@ -59,6 +59,7 @@ import android.telephony.NetworkRegistrationInfo;
		import android.telephony.PreciseDataConnectionState;
		import android.telephony.ServiceState;
		import android.telephony.SubscriptionManager;
		import android.telephony.TelephonyDisplayInfo;
		import android.telephony.TelephonyManager;
		import android.telephony.data.ApnSetting;
		import android.telephony.data.DataCallResponse;
		@@ -1557,6 +1558,55 @@ public class DataConnection extends StateMachine {
		return true;
		}

		// TODO: Remove this after b/176119724 is fixed. This is just a workaround to prevent
		// NET_CAPABILITY_TEMPORARILY_NOT_METERED incorrectly set on devices that are not supposed
		// to use 5G unmetered network. Currently TEMPORARILY_NOT_METERED can only happen on few devices
		// and carriers.
		private boolean isDevice5GCapable() {
		return (mPhone.getRadioAccessFamily() & TelephonyManager.NETWORK_TYPE_BITMASK_NR) != 0;
		}

		// TODO: Remove this after b/176119724 is fixed. This is just a workaround to prevent
		// NET_CAPABILITY_TEMPORARILY_NOT_METERED incorrectly set on devices that are not supposed
		// to use 5G unmetered network. Currently TEMPORARILY_NOT_METERED can only happen on few devices
		// and carriers.
		private boolean isTempNotMeteredSupportedByCarrier() {
		CarrierConfigManager configManager =
		mPhone.getContext().getSystemService(CarrierConfigManager.class);
		if (configManager != null) {
		PersistableBundle bundle = configManager.getConfigForSubId(mSubId);
		if (bundle != null) {
		return bundle.getBoolean(
		CarrierConfigManager.KEY_NETWORK_TEMP_NOT_METERED_SUPPORTED_BOOL);
		}
		}

		return false;
		}

		// TODO: Remove this after b/176119724 is fixed. This is just a workaround to prevent
		// NET_CAPABILITY_TEMPORARILY_NOT_METERED incorrectly set on devices that are not supposed
		// to use 5G unmetered network. Currently TEMPORARILY_NOT_METERED can only happen on few devices
		// and carriers.
		private boolean isCampedOn5GNsa() {
		TelephonyDisplayInfo displayInfo = mPhone.getDisplayInfoController()
		.getTelephonyDisplayInfo();
		int overrideNetworkType = displayInfo.getOverrideNetworkType();
		int networkType = mPhone.getServiceState().getDataNetworkType();
		return (networkType == TelephonyManager.NETWORK_TYPE_LTE
		\|\| networkType == TelephonyManager.NETWORK_TYPE_LTE_CA)
		&& (overrideNetworkType == TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NR_NSA
		\|\| overrideNetworkType == TelephonyDisplayInfo.OVERRIDE_NETWORK_TYPE_NR_NSA_MMWAVE);
		}

		// TODO: Remove this after b/176119724 is fixed. This is just a workaround to prevent
		// NET_CAPABILITY_TEMPORARILY_NOT_METERED incorrectly set on devices that are not supposed
		// to use 5G unmetered network. Currently TEMPORARILY_NOT_METERED can only happen on few devices
		// and carriers.
		private boolean tempNotMeteredPossible() {
		return isDevice5GCapable() && isTempNotMeteredSupportedByCarrier() && isCampedOn5GNsa();
		}

		/**
		* Get the network capabilities for this data connection.
		*
		@@ -1676,15 +1726,25 @@ public class DataConnection extends StateMachine {
		result.removeCapability(NetworkCapabilities.NET_CAPABILITY_NOT_CONGESTED);
		}

		// TODO: Remove this after b/176119724 is fixed. This is just a workaround to prevent
		// NET_CAPABILITY_TEMPORARILY_NOT_METERED incorrectly set on devices that are not supposed
		// to use 5G unmetered network. Currently TEMPORARILY_NOT_METERED can only happen on few
		// devices and carriers.
		if (tempNotMeteredPossible()) {
		result.setCapability(NetworkCapabilities.NET_CAPABILITY_TEMPORARILY_NOT_METERED,
		mUnmeteredOverride);

		if (mUnmeteredOverride && result.hasCapability(NetworkCapabilities.NET_CAPABILITY_INTERNET)
		&& (mPhone.getRadioAccessFamily() & TelephonyManager.NETWORK_TYPE_BITMASK_NR)
		== 0) {
		String message = "Unexpected TEMPORARILY_NOT_METERED on devices not supporting NR.";
		} else if (mUnmeteredOverride) {
		// If temp not metered is not possible, but mUnmeteredOverride got set, that means we
		// hit the bug.
		SubscriptionManager subscriptionManager = mPhone.getContext()
		.getSystemService(SubscriptionManager.class);
		String message = "Unexpected temp not metered detected. carrier supported="
		+ isTempNotMeteredSupportedByCarrier() + ", device 5G capable="
		+ isDevice5GCapable() + ", display info="
		+ mPhone.getDisplayInfoController().getTelephonyDisplayInfo()
		+ ", subscription plans=" + subscriptionManager.getSubscriptionPlans(mSubId);
		loge(message);
		// Using fixed UUID to avoid duplicate bugreport notification
		loge("Service state=" + mPhone.getServiceState());
		AnomalyReporter.reportAnomaly(
		UUID.fromString("9151f0fc-01df-4afb-b744-9c4529055248"), message);
		}