Tethering/res/values/config.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright (C) 2020 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

          http://www.apache.org/licenses/LICENSE-2.0

     Unless required by applicable law or agreed to in writing, software
     distributed under the License is distributed on an "AS IS" BASIS,
     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     See the License for the specific language governing permissions and
     limitations under the License.
-->
<resources>
    <!--
    OEMs that wish to change the below settings must do so via a runtime resource overlay package
    and *NOT* by changing this file. This file is part of the tethering mainline module.
    TODO: define two resources for each config item: a default_* resource and a config_* resource,
    config_* is empty by default but may be overridden by RROs.
    -->
    <!-- List of regexpressions describing the interface (if any) that represent tetherable
         USB interfaces.  If the device doesn't want to support tethering over USB this should
         be empty.  An example would be "usb.*" -->
    <string-array translatable="false" name="config_tether_usb_regexs">
        <item>"usb\\d"</item>
        <item>"rndis\\d"</item>
    </string-array>

    <!-- List of regexpressions describing the interface (if any) that represent tetherable
         NCM interfaces.  If the device doesn't want to support tethering over NCM this should
         be empty. -->
    <string-array translatable="false" name="config_tether_ncm_regexs">
    </string-array>

    <!-- List of regexpressions describing the interface (if any) that represent tetherable
         Wifi interfaces.  If the device doesn't want to support tethering over Wifi this
         should be empty.  An example would be "softap.*" -->
    <string-array translatable="false" name="config_tether_wifi_regexs">
        <item>"wlan\\d"</item>
        <item>"softap\\d"</item>
        <item>"ap_br_wlan\\d"</item>
        <item>"ap_br_softap\\d"</item>
    </string-array>

    <!-- List of regexpressions describing the interface (if any) that represent tetherable
         WiGig interfaces.  If the device doesn't want to support tethering over WiGig this
         should be empty.  An example would be "wigig\\d" -->
    <string-array translatable="false" name="config_tether_wigig_regexs">
        <item>"wigig\\d"</item>
    </string-array>

    <!-- List of regexpressions describing the interface (if any) that represent tetherable
         Wifi P2P interfaces.  If the device doesn't want to support tethering over Wifi P2p this
         should be empty.  An example would be "p2p-p2p\\d-.*" -->
    <string-array translatable="false" name="config_tether_wifi_p2p_regexs">
        <item>"p2p-p2p\\d-.*"</item>
        <item>"p2p\\d"</item>
    </string-array>

    <!-- List of regexpressions describing the interface (if any) that represent tetherable
         bluetooth interfaces.  If the device doesn't want to support tethering over bluetooth this
         should be empty. -->
    <string-array translatable="false" name="config_tether_bluetooth_regexs">
        <item>"bt-pan"</item>
    </string-array>

    <!-- Use the BPF offload for tethering when the kernel has support. True by default.
         If the device doesn't want to support tether BPF offload, this should be false.
         Note that this setting could be overridden by device config.
    -->
    <bool translatable="false" name="config_tether_enable_bpf_offload">true</bool>

    <!-- Use the old dnsmasq DHCP server for tethering instead of the framework implementation. -->
    <bool translatable="false" name="config_tether_enable_legacy_dhcp_server">false</bool>

    <!-- Use legacy wifi p2p dedicated address instead of randomize address. -->
    <bool translatable="false" name="config_tether_enable_legacy_wifi_p2p_dedicated_ip">false</bool>

    <!-- Use lease subnet prefix length to reserve the range outside of subnet prefix length.
         This configuration only valid if its value larger than dhcp server address prefix length
         and config_tether_enable_legacy_wifi_p2p_dedicated_ip is true.
    -->
    <integer translatable="false" name="config_p2p_leases_subnet_prefix_length">0</integer>

    <!-- Dhcp range (min, max) to use for tethering purposes -->
    <string-array translatable="false" name="config_tether_dhcp_range">
    </string-array>

    <!-- Used to config periodic polls tether offload stats from tethering offload HAL to make the
     data warnings work. 5000(ms) by default. If the device doesn't want to poll tether
     offload stats, this should be -1. Note that this setting could be override by
     runtime resource overlays.
    -->
    <integer translatable="false" name="config_tether_offload_poll_interval">5000</integer>

    <!-- Array of ConnectivityManager.TYPE_{BLUETOOTH, ETHERNET, MOBILE, MOBILE_DUN, MOBILE_HIPRI,
         WIFI} values allowable for tethering.

         Common options are [1, 4] for TYPE_WIFI and TYPE_MOBILE_DUN or
         [1,7,0] for TYPE_WIFI, TYPE_BLUETOOTH, and TYPE_MOBILE.

         This list is also modified by code within the framework, including:

             - TYPE_ETHERNET (9) is prepended to this list, and

             - the return value of TelephonyManager.isTetheringApnRequired()
               determines how the array is further modified:

                   * TRUE (DUN REQUIRED).
                     TYPE_MOBILE is removed (if present).
                     TYPE_MOBILE_HIPRI is removed (if present).
                     TYPE_MOBILE_DUN is appended (if not already present).

                   * FALSE (DUN NOT REQUIRED).
                     TYPE_MOBILE_DUN is removed (if present).
                     If both of TYPE_MOBILE{,_HIPRI} are not present:
                        TYPE_MOBILE is appended.
                        TYPE_MOBILE_HIPRI is appended.

         For other changes applied to this list, now and in the future, see
         com.android.networkstack.tethering.TetheringConfiguration.

         Note also: the order of this is important. The first upstream type
         for which a satisfying network exists is used.
    -->
    <integer-array translatable="false" name="config_tether_upstream_types">
    </integer-array>

    <!-- When true, the tethering upstream network follows the current default
         Internet network (except when the current default network is mobile,
         in which case a DUN network will be used if required).

         When true, overrides the config_tether_upstream_types setting above.
    -->
    <bool translatable="false" name="config_tether_upstream_automatic">true</bool>


    <!-- If the mobile hotspot feature requires provisioning, a package name and class name
         can be provided to launch a supported application that provisions the devices.
         EntitlementManager will send an intent to Settings with the specified package name and
         class name in extras to launch provision app.
         TODO: note what extras here.

         See EntitlementManager#runUiTetherProvisioning and
         packages/apps/Settings/src/com/android/settings/network/TetherProvisioningActivity.java
         for more details.

         For ui-less/periodic recheck support see config_mobile_hotspot_provision_app_no_ui
        -->
    <!-- The first element is the package name and the second element is the class name
         of the provisioning app -->
    <string-array translatable="false" name="config_mobile_hotspot_provision_app">
    <!--
        <item>com.example.provisioning</item>
        <item>com.example.provisioning.Activity</item>
    -->
    </string-array>

    <!-- If the mobile hotspot feature requires provisioning, an action can be provided
         that will be broadcast in non-ui cases for checking the provisioning status.
         EntitlementManager will pass the specified name to Settings and Settings would
         launch provisioning app by sending an intent with the package name.

         A second broadcast, action defined by config_mobile_hotspot_provision_response,
         will be sent back to notify if provisioning succeeded or not.  The response will
         match that of the activity in config_mobile_hotspot_provision_app, but instead
         contained within the int extra "EntitlementResult".
         TODO: provide the system api for "EntitlementResult" extra and note it here.

         See EntitlementManager#runSilentTetherProvisioning and
         packages/apps/Settings/src/com/android/settings/wifi/tether/TetherService.java for more
         details.
        -->
    <string translatable="false" name="config_mobile_hotspot_provision_app_no_ui"></string>

    <!-- Sent in response to a provisioning check. The caller must hold the
         permission android.permission.TETHER_PRIVILEGED for Settings to
         receive this response.

         See config_mobile_hotspot_provision_response
         -->
    <string translatable="false" name="config_mobile_hotspot_provision_response"></string>

    <!-- Number of hours between each background provisioning call -->
    <integer translatable="false" name="config_mobile_hotspot_provision_check_period">24</integer>

    <!-- ComponentName of the service used to run no ui tether provisioning. -->
    <string translatable="false" name="config_wifi_tether_enable">com.android.settings/.wifi.tether.TetherService</string>

    <!-- No upstream notification is shown when there is a downstream but no upstream that is able
         to do the tethering. -->
    <!-- Delay(millisecond) to show no upstream notification after there's no Backhaul. Set delay to
         "-1" for disable this feature. -->
    <integer name="delay_to_show_no_upstream_after_no_backhaul">-1</integer>

    <!-- Cellular roaming notification is shown when upstream is cellular network and in roaming
         state. -->
    <!-- Config for showing upstream roaming notification. -->
    <bool name="config_upstream_roaming_notification">false</bool>

    <!-- Which USB function should be enabled when TETHERING_USB is requested. 0: RNDIS, 1: NCM.
         -->
    <integer translatable="false" name="config_tether_usb_functions">0</integer>
</resources>