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Chain.hpp

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 * This file is part of openWNS (open Wireless Network Simulator)
 * _____________________________________________________________________________
 *
 * Copyright (C) 2004-2007
 * Chair of Communication Networks (ComNets)
 * Kopernikusstr. 5, D-52074 Aachen, Germany
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 * fax: ++49-241-80-22242
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 * www: http://www.openwns.org
 * _____________________________________________________________________________
 *
 * openWNS is free software; you can redistribute it and/or modify it under the
 * terms of the GNU Lesser General Public License version 2 as published by the
 * Free Software Foundation;
 *
 * openWNS is distributed in the hope that it will be useful, but WITHOUT ANY
 * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
 * A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more
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#ifndef IP_IPTABLES_CHAIN_HPP
#define IP_IPTABLES_CHAIN_HPP

#include <IP/IPHeader.hpp>
#include <IP/iptables/filters/FilterInterface.hpp>
#include <IP/iptables/targets/TargetInterface.hpp>
#include <IP/iptables/Rule.hpp>
#include <IP/iptables/IRuleControl.hpp>

#include <WNS/ldk/CommandTypeSpecifier.hpp>
#include <WNS/ldk/HasConnector.hpp>
#include <WNS/ldk/HasReceptor.hpp>
#include <WNS/ldk/HasDeliverer.hpp>
#include <WNS/ldk/Processor.hpp>
#include <WNS/ldk/Command.hpp>

#include <WNS/ldk/fun/FUN.hpp>
#include <WNS/service/dll/DataTransmission.hpp>
#include <WNS/service/dll/Handler.hpp>
#include <WNS/service/tl/TCPHeader.hpp>

//#include <list>
#include <map>

namespace ip { namespace iptables {

    class Chain:
        public wns::ldk::CommandTypeSpecifier<>,
        public wns::ldk::HasReceptor<>,
        public wns::ldk::HasConnector<>,
        public wns::ldk::HasDeliverer<>,
        virtual public wns::ldk::FunctionalUnit,
        public ip::iptables::IRuleControl
    {
    public:
        typedef std::list<ip::iptables::Rule> RuleContainer;

        Chain(wns::ldk::fun::FUN* fun, const wns::pyconfig::View& _pyco);

        virtual
        ~Chain();

        virtual void
        onFUNCreated();

        virtual bool
        doIsAccepting(const wns::ldk::CompoundPtr&) const;

        virtual void
        doSendData(const wns::ldk::CompoundPtr&);

        virtual void
        doWakeup();

        virtual void
        doOnData(const wns::ldk::CompoundPtr&);

        targets::TargetResult
        activateChain(IPCommand*, wns::service::tl::ITCPHeader*, wns::service::tl::IUDPHeader*);

        virtual bool
        activateOutgoing(const IPCommand&) = 0;

        virtual bool
        activateIncoming(const IPCommand&) = 0;


        virtual void
        addRule(ip::iptables::Rule);

        virtual void
        removeRules(ip::iptables::Rule::RuleTag ruleTag);

        virtual bool
        hasRules(ip::iptables::Rule::RuleTag ruleTag);

        virtual ip::iptables::Rule
        getRule(ip::iptables::Rule::RuleTag ruleTag);

        virtual void
        showRules();

    protected:
        wns::logger::Logger log;

    private:
        wns::ldk::CommandReaderInterface* ipHeaderReader;
        RuleContainer rules;
    };


}// iptables
}// ip

#endif // IP_IPTABLES_CHAIN_HPP

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