service/ServiceConnectivityResources/res/values/config.xml

<?xml version="1.0" encoding="utf-8"?>
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  ~ Copyright (C) 2021 The Android Open Source Project
  ~
  ~ Licensed under the Apache License, Version 2.0 (the "License");
  ~ you may not use this file except in compliance with the License.
  ~ You may obtain a copy of the License at
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  ~      http://www.apache.org/licenses/LICENSE-2.0
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  ~ See the License for the specific language governing permissions and
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  -->

<!-- Configuration values for ConnectivityService
     DO NOT EDIT THIS FILE for specific device configuration; instead, use a Runtime Resources
     Overlay package following the overlayable.xml configuration in the same directory:
     https://source.android.com/devices/architecture/rros -->
<resources>

    <!-- Configuration hook for the URL returned by ConnectivityManager#getCaptivePortalServerUrl.
         If empty, the returned value is controlled by Settings.Global.CAPTIVE_PORTAL_HTTP_URL,
         and if that value is empty, the framework will use a hard-coded default.
         This is *NOT* a URL that will always be used by the system network validation to detect
         captive portals: NetworkMonitor may use different strategies and will not necessarily use
         this URL. NetworkMonitor behaviour should be configured with NetworkStack resource overlays
         instead. -->
    <!--suppress CheckTagEmptyBody -->
    <string translatable="false" name="config_networkCaptivePortalServerUrl"></string>

    <!-- The maximum duration (in milliseconds) we expect a network transition to take -->
    <integer name="config_networkTransitionTimeout">60000</integer>

    <!-- Configuration of network interfaces that support WakeOnLAN -->
    <string-array translatable="false" name="config_wakeonlan_supported_interfaces">
        <!--
        <item>wlan0</item>
        <item>eth0</item>
        -->
    </string-array>

    <string-array translatable="false" name="config_legacy_networktype_restore_timers">
        <item>2,60000</item><!-- mobile_mms -->
        <item>3,60000</item><!-- mobile_supl -->
        <item>4,60000</item><!-- mobile_dun -->
        <item>5,60000</item><!-- mobile_hipri -->
        <item>10,60000</item><!-- mobile_fota -->
        <item>11,60000</item><!-- mobile_ims -->
        <item>12,60000</item><!-- mobile_cbs -->
    </string-array>

    <!-- 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 translatable="false" 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 translatable="false" name="config_apfEthTypeDenyList">
        <item>0x88A2</item>
        <item>0x88A4</item>
        <item>0x88B8</item>
        <item>0x88CD</item>
        <item>0x88E3</item>
    </integer-array>

    <!-- Default supported concurrent socket keepalive slots per transport type, used by
         ConnectivityManager.createSocketKeepalive() for calculating the number of keepalive
         offload slots that should be reserved for privileged access. This string array should be
         overridden by the device to present the capability of creating socket keepalives. -->
    <!-- An Array of "[NetworkCapabilities.TRANSPORT_*],[supported keepalives] -->
    <string-array translatable="false" name="config_networkSupportedKeepaliveCount">
        <item>0,1</item>
        <item>1,3</item>
    </string-array>


    <!-- Default value for ConnectivityManager.getMultipathPreference() on metered networks. Actual
         device behaviour is controlled by the metered multipath preference in
         ConnectivitySettingsManager. This is the default value of that setting. -->
    <integer translatable="false" name="config_networkMeteredMultipathPreference">0</integer>

    <!-- Whether the device should automatically switch away from Wi-Fi networks that lose
         Internet access. Actual device behaviour is controlled by
         Settings.Global.NETWORK_AVOID_BAD_WIFI. This is the default value of that setting. -->
    <integer translatable="false" name="config_networkAvoidBadWifi">1</integer>

</resources>