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Commit 232afa51 authored by junyulai's avatar junyulai
Browse files

Attribute data usage to virtual RAT type for 5G non-standalone mode 

Test: atest NetworkStatsSubscriptionsMonitorTest#test5g
Bug: 160727498
Change-Id: I8753e68140c0993773017c9a49bd8a666a364071
Merged-In: I8753e68140c0993773017c9a49bd8a666a364071
(cherry-picked from ag/12167624)
parent c42d4b65

core/java/android/net/NetworkTemplate.java

+12 −0
Original line number Diff line number Diff line
@@ -87,6 +87,15 @@ public class NetworkTemplate implements Parcelable { 
     * @hide

     */

    public static final int NETWORK_TYPE_ALL = -1;

    /**

     * Virtual RAT type to represent 5G NSA (Non Stand Alone) mode, where the primary cell is

     * still LTE and network allocates a secondary 5G cell so telephony reports RAT = LTE along

     * with NR state as connected. This should not be overlapped with any of the

     * {@code TelephonyManager.NETWORK_TYPE_*} constants.

     *

     * @hide

     */

    public static final int NETWORK_TYPE_5G_NSA = -2;



    private static boolean isKnownMatchRule(final int rule) {

        switch (rule) {
@@ -475,6 +484,9 @@ public class NetworkTemplate implements Parcelable { 
                return TelephonyManager.NETWORK_TYPE_LTE;

            case TelephonyManager.NETWORK_TYPE_NR:

                return TelephonyManager.NETWORK_TYPE_NR;

            // Virtual RAT type for 5G NSA mode, see {@link NetworkTemplate#NETWORK_TYPE_5G_NSA}.

            case NetworkTemplate.NETWORK_TYPE_5G_NSA:

                return NetworkTemplate.NETWORK_TYPE_5G_NSA;

            default:

                return TelephonyManager.NETWORK_TYPE_UNKNOWN;

        }

services/core/java/com/android/server/net/NetworkStatsSubscriptionsMonitor.java

+14 −1
Original line number Diff line number Diff line
@@ -16,11 +16,13 @@ 


package com.android.server.net;



import static android.net.NetworkTemplate.NETWORK_TYPE_5G_NSA;

import static android.net.NetworkTemplate.getCollapsedRatType;



import android.annotation.NonNull;

import android.content.Context;

import android.telephony.Annotation;

import android.telephony.NetworkRegistrationInfo;

import android.telephony.PhoneStateListener;

import android.telephony.ServiceState;

import android.telephony.SubscriptionManager;
@@ -195,7 +197,18 @@ public class NetworkStatsSubscriptionsMonitor extends 


        @Override

        public void onServiceStateChanged(@NonNull ServiceState ss) {

            final int networkType = ss.getDataNetworkType();

            // In 5G SA (Stand Alone) mode, the primary cell itself will be 5G hence telephony

            // would report RAT = 5G_NR.

            // However, in 5G NSA (Non Stand Alone) mode, the primary cell is still LTE and

            // network allocates a secondary 5G cell so telephony reports RAT = LTE along with

            // NR state as connected. In such case, attributes the data usage to NR.

            // See b/160727498.

            final boolean is5GNsa = (ss.getDataNetworkType() == TelephonyManager.NETWORK_TYPE_LTE

                    || ss.getDataNetworkType() == TelephonyManager.NETWORK_TYPE_LTE_CA)

                    && ss.getNrState() == NetworkRegistrationInfo.NR_STATE_CONNECTED;



            final int networkType =

                    (is5GNsa ? NETWORK_TYPE_5G_NSA : ss.getDataNetworkType());

            final int collapsedRatType = getCollapsedRatType(networkType);

            if (collapsedRatType == mLastCollapsedRatType) return;

tests/net/java/android/net/NetworkTemplateTest.kt

+5 −2
Original line number Diff line number Diff line
@@ -26,6 +26,7 @@ import android.net.NetworkStats.METERED_ALL 
import android.net.NetworkStats.ROAMING_ALL

import android.net.NetworkTemplate.MATCH_MOBILE

import android.net.NetworkTemplate.MATCH_WIFI

import android.net.NetworkTemplate.NETWORK_TYPE_5G_NSA

import android.net.NetworkTemplate.NETWORK_TYPE_ALL

import android.net.NetworkTemplate.buildTemplateMobileWithRatType

import android.telephony.TelephonyManager
@@ -145,11 +146,13 @@ class NetworkTemplateTest { 
        assertParcelSane(templateWifi, 8)

    }



    // Verify NETWORK_TYPE_ALL does not conflict with TelephonyManager#NETWORK_TYPE_* constants.

    // Verify NETWORK_TYPE_* constants in NetworkTemplate do not conflict with

    // TelephonyManager#NETWORK_TYPE_* constants.

    @Test

    fun testNetworkTypeAll() {

    fun testNetworkTypeConstants() {

        for (ratType in TelephonyManager.getAllNetworkTypes()) {

            assertNotEquals(NETWORK_TYPE_ALL, ratType)

            assertNotEquals(NETWORK_TYPE_5G_NSA, ratType)

        }

    }

}

tests/net/java/com/android/server/net/NetworkStatsSubscriptionsMonitorTest.java

+54 −1
Original line number Diff line number Diff line
@@ -17,6 +17,7 @@ 
package com.android.server.net;



import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertNotNull;

import static org.mockito.Mockito.any;

import static org.mockito.Mockito.anyInt;

import static org.mockito.Mockito.eq;
@@ -29,7 +30,9 @@ import static org.mockito.Mockito.when; 


import android.annotation.NonNull;

import android.content.Context;

import android.net.NetworkTemplate;

import android.os.Looper;

import android.telephony.NetworkRegistrationInfo;

import android.telephony.PhoneStateListener;

import android.telephony.ServiceState;

import android.telephony.SubscriptionManager;
@@ -61,7 +64,6 @@ public final class NetworkStatsSubscriptionsMonitorTest { 
    private static final String TEST_IMSI3 = "466929999999999";



    @Mock private Context mContext;

    @Mock private PhoneStateListener mPhoneStateListener;

    @Mock private SubscriptionManager mSubscriptionManager;

    @Mock private TelephonyManager mTelephonyManager;

    @Mock private Delegate mDelegate;
@@ -215,4 +217,55 @@ public final class NetworkStatsSubscriptionsMonitorTest { 
        verify(mTelephonyManager, times(2)).listen(any(), eq(PhoneStateListener.LISTEN_NONE));

        assertRatTypeChangedForSub(TEST_IMSI1, TelephonyManager.NETWORK_TYPE_UNKNOWN);

    }





    @Test

    public void test5g() {

        mMonitor.start();

        // Insert sim1, verify RAT type is NETWORK_TYPE_UNKNOWN, and never get any callback

        // before changing RAT type. Also capture listener for later use.

        addTestSub(TEST_SUBID1, TEST_IMSI1);

        assertRatTypeNotChangedForSub(TEST_IMSI1, TelephonyManager.NETWORK_TYPE_UNKNOWN);

        final ArgumentCaptor<RatTypeListener> ratTypeListenerCaptor =

                ArgumentCaptor.forClass(RatTypeListener.class);

        verify(mTelephonyManager, times(1)).listen(ratTypeListenerCaptor.capture(),

                eq(PhoneStateListener.LISTEN_SERVICE_STATE));

        final RatTypeListener listener = CollectionUtils

                .find(ratTypeListenerCaptor.getAllValues(), it -> it.getSubId() == TEST_SUBID1);

        assertNotNull(listener);



        // Set RAT type to 5G NSA (non-standalone) mode, verify the monitor outputs

        // NETWORK_TYPE_5G_NSA.

        final ServiceState serviceState = mock(ServiceState.class);

        when(serviceState.getDataNetworkType()).thenReturn(TelephonyManager.NETWORK_TYPE_LTE);

        when(serviceState.getNrState()).thenReturn(NetworkRegistrationInfo.NR_STATE_CONNECTED);

        listener.onServiceStateChanged(serviceState);

        assertRatTypeChangedForSub(TEST_IMSI1, NetworkTemplate.NETWORK_TYPE_5G_NSA);

        reset(mDelegate);



        // Set RAT type to LTE without NR connected, the RAT type should be downgraded to LTE.

        when(serviceState.getNrState()).thenReturn(NetworkRegistrationInfo.NR_STATE_NONE);

        listener.onServiceStateChanged(serviceState);

        assertRatTypeChangedForSub(TEST_IMSI1, TelephonyManager.NETWORK_TYPE_LTE);

        reset(mDelegate);



        // Verify NR connected with other RAT type does not take effect.

        when(serviceState.getDataNetworkType()).thenReturn(TelephonyManager.NETWORK_TYPE_UMTS);

        when(serviceState.getNrState()).thenReturn(NetworkRegistrationInfo.NR_STATE_CONNECTED);

        listener.onServiceStateChanged(serviceState);

        assertRatTypeChangedForSub(TEST_IMSI1, TelephonyManager.NETWORK_TYPE_UMTS);

        reset(mDelegate);



        // Set RAT type to 5G standalone mode, the RAT type should be NR.

        setRatTypeForSub(ratTypeListenerCaptor.getAllValues(), TEST_SUBID1,

                TelephonyManager.NETWORK_TYPE_NR);

        assertRatTypeChangedForSub(TEST_IMSI1, TelephonyManager.NETWORK_TYPE_NR);

        reset(mDelegate);



        // Set NR state to none in standalone mode does not change anything.

        when(serviceState.getDataNetworkType()).thenReturn(TelephonyManager.NETWORK_TYPE_NR);

        when(serviceState.getNrState()).thenReturn(NetworkRegistrationInfo.NR_STATE_NONE);

        listener.onServiceStateChanged(serviceState);

        assertRatTypeNotChangedForSub(TEST_IMSI1, TelephonyManager.NETWORK_TYPE_NR);

    }

}