60 lines
1.9 KiB
C++
60 lines
1.9 KiB
C++
/*
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* Copyright (C) 2008 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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#ifndef _NAT_CONTROLLER_H
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#define _NAT_CONTROLLER_H
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#include <list>
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#include <string>
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#include "NetdConstants.h"
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class NatController {
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public:
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NatController();
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virtual ~NatController();
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int enableNat(const char* intIface, const char* extIface);
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int disableNat(const char* intIface, const char* extIface);
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int setupIptablesHooks();
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static const char* LOCAL_FORWARD;
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static const char* LOCAL_MANGLE_FORWARD;
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static const char* LOCAL_NAT_POSTROUTING;
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static const char* LOCAL_RAW_PREROUTING;
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static const char* LOCAL_TETHER_COUNTERS_CHAIN;
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// List of strings of interface pairs.
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std::list<std::string> ifacePairList;
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private:
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int natCount;
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static std::string makeTetherCountingRule(const char *if1, const char *if2);
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bool checkTetherCountingRuleExist(const std::string& pair_name);
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int setDefaults();
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int runCmd(int argc, const char **argv);
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int setForwardRules(bool set, const char *intIface, const char *extIface);
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int setTetherCountingRules(bool add, const char *intIface, const char *extIface);
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// For testing.
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friend class NatControllerTest;
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static int (*execFunction)(int, char **, int *, bool, bool);
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static int (*iptablesRestoreFunction)(IptablesTarget, const std::string&);
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};
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#endif
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