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<?xml version="1.0" encoding="utf-8"?>
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<!--
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/*
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** Copyright 2020, The Android Open Source Project
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**
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** Licensed under the Apache License, Version 2.0 (the "License");
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** you may not use this file except in compliance with the License.
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** You may obtain a copy of the License at
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**
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** http://www.apache.org/licenses/LICENSE-2.0
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**
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** Unless required by applicable law or agreed to in writing, software
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** distributed under the License is distributed on an "AS IS" BASIS,
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** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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** See the License for the specific language governing permissions and
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** limitations under the License.
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*/
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-->
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<resources xmlns:xliff="urn:oasis:names:tc:xliff:document:1.2">
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<!-- Use the BPF offload for tethering when the kernel has support. True by default.
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If the device doesn't want to support tether BPF offload, this should be false.
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Note that this setting could be overridden by device config.
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-->
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<!--
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The new trafficController design is based on per-cgroup eBPF filter as well as xt_bpf netfilter module inside the kernel.
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However, support for per-cgroup eBPF is available on only on kernels >=4.9 . Disable BPF offloading support completely
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as without proper per-cgroup eBPF, the stats returns errors continuously.
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E TetherController: Error processing tether stats from BPF maps: Get firstKey map -1 failed: Bad file descriptor
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Ref:
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[0]: https://source.android.com/devices/tech/datausage/ebpf-traffic-monitor
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[1]: https://github.com/LineageOS/android_system_netd/blob/4e0a5f13fc1018d0d5f60616c32b863277937134/server/TetherController.cpp#L1047
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-->
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<bool translatable="false" name="config_tether_enable_bpf_offload">false</bool>
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</resources>
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