96 lines
2.7 KiB
C++
96 lines
2.7 KiB
C++
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/*
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* Copyright (C) 2022 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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#include <gtest/gtest.h>
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#include <vintf/VintfObject.h>
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#include <fstream>
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#include <string>
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#include "bpf/KernelUtils.h"
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namespace android {
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namespace net {
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namespace {
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using ::android::vintf::RuntimeInfo;
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using ::android::vintf::VintfObject;
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class KernelConfigVerifier final {
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public:
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KernelConfigVerifier() : mRuntimeInfo(VintfObject::GetRuntimeInfo()) {}
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bool hasOption(const std::string& option) const {
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const auto& configMap = mRuntimeInfo->kernelConfigs();
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auto it = configMap.find(option);
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if (it != configMap.cend()) {
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return it->second == "y";
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}
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return false;
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}
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private:
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std::shared_ptr<const RuntimeInfo> mRuntimeInfo;
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};
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bool isGsiImage() {
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std::ifstream ifs("/system/system_ext/etc/init/init.gsi.rc");
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return ifs.good();
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}
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} // namespace
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/**
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* If this test fails, enable the following kernel modules in your kernel config:
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* CONFIG_NET_CLS_MATCHALL=y
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* CONFIG_NET_ACT_POLICE=y
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* CONFIG_NET_ACT_BPF=y
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* CONFIG_BPF_JIT=y
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*/
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TEST(KernelTest, TestRateLimitingSupport) {
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if (isGsiImage()) {
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// skip test on gsi images
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GTEST_SKIP() << "GSI Image";
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}
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KernelConfigVerifier configVerifier;
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ASSERT_TRUE(configVerifier.hasOption("CONFIG_NET_CLS_MATCHALL"));
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ASSERT_TRUE(configVerifier.hasOption("CONFIG_NET_ACT_POLICE"));
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ASSERT_TRUE(configVerifier.hasOption("CONFIG_NET_ACT_BPF"));
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ASSERT_TRUE(configVerifier.hasOption("CONFIG_BPF_JIT"));
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}
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TEST(KernelTest, TestBpfJitAlwaysOn) {
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// 32-bit arm & x86 kernels aren't capable of JIT-ing all of our BPF code,
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if (bpf::isKernel32Bit()) GTEST_SKIP() << "Exempt on 32-bit kernel.";
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KernelConfigVerifier configVerifier;
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ASSERT_TRUE(configVerifier.hasOption("CONFIG_BPF_JIT_ALWAYS_ON"));
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}
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/* Android 14/U should only launch on 64-bit kernels
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* T launches on 5.10/5.15
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* U launches on 5.15/6.1
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* So >=5.16 implies isKernel64Bit()
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*/
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TEST(KernelTest, TestKernel64Bit) {
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if (!bpf::isAtLeastKernelVersion(5, 16, 0)) GTEST_SKIP() << "Exempt on < 5.16 kernel.";
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ASSERT_TRUE(bpf::isKernel64Bit());
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}
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} // namespace net
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} // namespace android
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