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Commit bcfe90a6 authored by Remi NGUYEN VAN's avatar Remi NGUYEN VAN Committed by Automerger Merge Worker
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Merge "Move config_apf* resources to NetworkStack" into sc-dev am: 825ebc0e 

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/NetworkStack/+/14631612

Change-Id: I226c70d1154e0f14513e6d4eb101c7f0929a2e6e
parents d018ce3b 825ebc0e

res/values/config.xml

+16 −0
Original line number Diff line number Diff line
@@ -105,4 +105,20 @@ 
         increased until reaching the config_max_retry_timer. -->

    <integer name="config_evaluating_bandwidth_min_retry_timer_ms"></integer>

    <integer name="config_evaluating_bandwidth_max_retry_timer_ms"></integer>



    <!-- Whether the APF Filter in the device should filter out IEEE 802.3 Frames

         Those frames are identified by the field Eth-type having values

         less than 0x600 -->

    <bool name="config_apfDrop802_3Frames">true</bool>



    <!-- An array of Denylisted EtherType, packets with EtherTypes within this array

         will be dropped

         TODO: need to put proper values, these are for testing purposes only -->

    <integer-array name="config_apfEthTypeDenyList">

        <item>0x88A2</item>

        <item>0x88A4</item>

        <item>0x88B8</item>

        <item>0x88CD</item>

        <item>0x88E3</item>

    </integer-array>

</resources>

res/values/overlayable.xml

+7 −0
Original line number Diff line number Diff line
@@ -77,6 +77,13 @@ 
            <item type="integer" name="config_evaluating_bandwidth_timeout_ms"/>

            <item type="integer" name="config_evaluating_bandwidth_min_retry_timer_ms"/>

            <item type="integer" name="config_evaluating_bandwidth_max_retry_timer_ms"/>



            <!-- Whether the APF Filter in the device should filter out IEEE 802.3 Frames

            Those frames are identified by the field Eth-type having values less than 0x600 -->

            <item type="bool" name="config_apfDrop802_3Frames"/>

            <!-- An array of Denylisted EtherType, packets with EtherTypes within this array

            will be dropped -->

            <item type="array" name="config_apfEthTypeDenyList"/>

        </policy>

    </overlayable>

</resources>

src/android/net/ip/IpClient.java

+24 −3
Original line number Diff line number Diff line
@@ -36,6 +36,7 @@ import static com.android.net.module.util.NetworkStackConstants.VENDOR_SPECIFIC_ 
import static com.android.server.util.PermissionUtil.enforceNetworkStackCallingPermission;



import android.content.Context;

import android.content.res.Resources;

import android.net.ConnectivityManager;

import android.net.DhcpResults;

import android.net.INetd;
@@ -94,6 +95,7 @@ import com.android.internal.util.State; 
import com.android.internal.util.StateMachine;

import com.android.internal.util.WakeupMessage;

import com.android.net.module.util.DeviceConfigUtils;

import com.android.networkstack.R;

import com.android.networkstack.apishim.NetworkInformationShimImpl;

import com.android.networkstack.apishim.SocketUtilsShimImpl;

import com.android.networkstack.apishim.common.NetworkInformationShim;
@@ -605,6 +607,16 @@ public class IpClient extends StateMachine { 
            return DeviceConfigUtils.isFeatureEnabled(context, NAMESPACE_CONNECTIVITY, name,

                    defaultEnabled);

        }



        /**

         * Create an APF filter if apfCapabilities indicates support for packet filtering using

         * APF programs.

         * @see ApfFilter#maybeCreate

         */

        public ApfFilter maybeCreateApfFilter(Context context, ApfFilter.ApfConfiguration config,

                InterfaceParams ifParams, IpClientCallbacksWrapper cb) {

            return ApfFilter.maybeCreate(context, config, ifParams, cb);

        }

    }



    public IpClient(Context context, String ifName, IIpClientCallbacks callback,
@@ -2195,10 +2207,19 @@ public class IpClient extends StateMachine { 
            apfConfig.apfCapabilities = mConfiguration.mApfCapabilities;

            apfConfig.multicastFilter = mMulticastFiltering;

            // Get the Configuration for ApfFilter from Context

            // Resource settings were moved from ApfCapabilities APIs to NetworkStack resources in S

            if (ShimUtils.isReleaseOrDevelopmentApiAbove(Build.VERSION_CODES.R)) {

                final Resources res = mContext.getResources();

                apfConfig.ieee802_3Filter = res.getBoolean(R.bool.config_apfDrop802_3Frames);

                apfConfig.ethTypeBlackList = res.getIntArray(R.array.config_apfEthTypeDenyList);

            } else {

                apfConfig.ieee802_3Filter = ApfCapabilities.getApfDrop8023Frames();

                apfConfig.ethTypeBlackList = ApfCapabilities.getApfEtherTypeBlackList();

            }



            apfConfig.minRdnssLifetimeSec = mMinRdnssLifetimeSec;

            mApfFilter = ApfFilter.maybeCreate(mContext, apfConfig, mInterfaceParams, mCallback);

            mApfFilter = mDependencies.maybeCreateApfFilter(mContext, apfConfig, mInterfaceParams,

                    mCallback);

            // TODO: investigate the effects of any multicast filtering racing/interfering with the

            // rest of this IP configuration startup.

            if (mApfFilter == null) {

tests/unit/src/android/net/ip/IpClientTest.java

+78 −0
Original line number Diff line number Diff line
@@ -18,12 +18,14 @@ package android.net.ip; 


import static android.system.OsConstants.RT_SCOPE_UNIVERSE;



import static org.junit.Assert.assertArrayEquals;

import static org.junit.Assert.assertEquals;

import static org.junit.Assert.assertFalse;

import static org.junit.Assert.assertTrue;

import static org.junit.Assert.fail;

import static org.mockito.Mockito.any;

import static org.mockito.Mockito.anyString;

import static org.mockito.Mockito.doReturn;

import static org.mockito.Mockito.eq;

import static org.mockito.Mockito.never;

import static org.mockito.Mockito.reset;
@@ -48,22 +50,30 @@ import android.net.LinkProperties; 
import android.net.MacAddress;

import android.net.NetworkStackIpMemoryStore;

import android.net.RouteInfo;

import android.net.apf.ApfCapabilities;

import android.net.apf.ApfFilter.ApfConfiguration;

import android.net.ipmemorystore.NetworkAttributes;

import android.net.metrics.IpConnectivityLog;

import android.net.shared.InitialConfiguration;

import android.net.shared.ProvisioningConfiguration;

import android.net.util.InterfaceParams;

import android.os.Build;



import androidx.test.filters.SmallTest;

import androidx.test.runner.AndroidJUnit4;



import com.android.networkstack.R;

import com.android.server.NetworkObserver;

import com.android.server.NetworkObserverRegistry;

import com.android.server.NetworkStackService;

import com.android.server.connectivity.ipmemorystore.IpMemoryStoreService;

import com.android.testutils.DevSdkIgnoreRule;

import com.android.testutils.DevSdkIgnoreRule.IgnoreAfter;

import com.android.testutils.DevSdkIgnoreRule.IgnoreUpTo;

import com.android.testutils.HandlerUtils;



import org.junit.Before;

import org.junit.Rule;

import org.junit.Test;

import org.junit.runner.RunWith;

import org.mockito.ArgumentCaptor;
@@ -85,6 +95,9 @@ import java.util.Set; 
@RunWith(AndroidJUnit4.class)

@SmallTest

public class IpClientTest {

    @Rule

    public final DevSdkIgnoreRule mIgnoreRule = new DevSdkIgnoreRule();



    private static final String VALID = "VALID";

    private static final String INVALID = "INVALID";

    private static final String TEST_IFNAME = "test_wlan0";
@@ -631,6 +644,71 @@ public class IpClientTest { 
        return out;

    }



    private ApfConfiguration verifyApfFilterCreatedOnStart(IpClient ipc) {

        ProvisioningConfiguration config = new ProvisioningConfiguration.Builder()

                .withoutIPv4()

                .withoutIpReachabilityMonitor()

                .withInitialConfiguration(

                        conf(links(TEST_LOCAL_ADDRESSES), prefixes(TEST_PREFIXES), ips()))

                .withApfCapabilities(new ApfCapabilities(

                        4 /* version */, 4096 /* maxProgramSize */, 4 /* format */))

                .build();



        ipc.startProvisioning(config);

        final ArgumentCaptor<ApfConfiguration> configCaptor = ArgumentCaptor.forClass(

                ApfConfiguration.class);

        verify(mDependencies, timeout(TEST_TIMEOUT_MS)).maybeCreateApfFilter(

                any(), configCaptor.capture(), any(), any());



        return configCaptor.getValue();

    }



    @Test @IgnoreAfter(Build.VERSION_CODES.R)

    public void testApfConfiguration_R() throws Exception {

        final IpClient ipc = makeIpClient(TEST_IFNAME);

        final ApfConfiguration config = verifyApfFilterCreatedOnStart(ipc);



        assertEquals(ApfCapabilities.getApfDrop8023Frames(), config.ieee802_3Filter);

        assertArrayEquals(ApfCapabilities.getApfEtherTypeBlackList(), config.ethTypeBlackList);



        verify(mResources, never()).getBoolean(R.bool.config_apfDrop802_3Frames);

        verify(mResources, never()).getIntArray(R.array.config_apfEthTypeDenyList);



        verifyShutdown(ipc);

    }



    @Test @IgnoreUpTo(Build.VERSION_CODES.R)

    public void testApfConfiguration() throws Exception {

        doReturn(true).when(mResources).getBoolean(R.bool.config_apfDrop802_3Frames);

        final int[] ethTypeDenyList = new int[] { 0x88A2, 0x88A4 };

        doReturn(ethTypeDenyList).when(mResources).getIntArray(

                R.array.config_apfEthTypeDenyList);



        final IpClient ipc = makeIpClient(TEST_IFNAME);

        final ApfConfiguration config = verifyApfFilterCreatedOnStart(ipc);



        assertTrue(config.ieee802_3Filter);

        assertArrayEquals(ethTypeDenyList, config.ethTypeBlackList);



        verifyShutdown(ipc);

    }



    @Test @IgnoreUpTo(Build.VERSION_CODES.R)

    public void testApfConfiguration_NoApfDrop8023Frames() throws Exception {

        doReturn(false).when(mResources).getBoolean(R.bool.config_apfDrop802_3Frames);

        final int[] ethTypeDenyList = new int[] { 0x88A3, 0x88A5 };

        doReturn(ethTypeDenyList).when(mResources).getIntArray(

                R.array.config_apfEthTypeDenyList);



        final IpClient ipc = makeIpClient(TEST_IFNAME);

        final ApfConfiguration config = verifyApfFilterCreatedOnStart(ipc);



        assertFalse(config.ieee802_3Filter);

        assertArrayEquals(ethTypeDenyList, config.ethTypeBlackList);



        verifyShutdown(ipc);

    }



    interface Fn<A,B> {

        B call(A a) throws Exception;

    }