c52cbe0cf8
The utility currently contains a firewall class that is used by DNS resolver tests to block DNS packets. Bug: 227159929 Test: atest resolv_integration_test Change-Id: I5c5bc0b263a677f57cd63f002057ff0812f15e64
42 lines
1.5 KiB
C++
42 lines
1.5 KiB
C++
/*
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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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#pragma once
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#include <android-base/thread_annotations.h>
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#include <bpf/BpfMap.h>
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#include <bpf_shared.h>
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using android::base::Result;
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using android::bpf::BpfMap;
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class Firewall {
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public:
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Firewall() EXCLUDES(mMutex);
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static Firewall* getInstance();
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Result<void> toggleStandbyMatch(bool enable) EXCLUDES(mMutex);
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Result<void> addRule(uint32_t uid, UidOwnerMatchType match, uint32_t iif = 0) EXCLUDES(mMutex);
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Result<void> removeRule(uint32_t uid, UidOwnerMatchType match) EXCLUDES(mMutex);
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Result<void> addUidInterfaceRules(const std::string& ifName, const std::vector<int32_t>& uids);
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Result<void> removeUidInterfaceRules(const std::vector<int32_t>& uids);
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private:
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BpfMap<uint32_t, uint32_t> mConfigurationMap GUARDED_BY(mMutex);
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BpfMap<uint32_t, UidOwnerValue> mUidOwnerMap GUARDED_BY(mMutex);
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std::mutex mMutex;
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};
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