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VirtualDNS.hpp

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 * This file is part of openWNS (open Wireless Network Simulator)
 * _____________________________________________________________________________
 *
 * Copyright (C) 2004-2007
 * Chair of Communication Networks (ComNets)
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 * _____________________________________________________________________________
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 * 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_VIRTUALDNS_HPP
#define IP_VIRTUALDNS_HPP

#include <WNS/service/nl/Address.hpp>
#include <WNS/service/dll/DataTransmission.hpp>
#include <WNS/node/component/Component.hpp>
#include <WNS/container/Registry.hpp>
#include <WNS/ldk/fun/Main.hpp>
#include <WNS/ldk/Layer.hpp>
#include <WNS/logger/Logger.hpp>
#include <WNS/Singleton.hpp>

namespace ip {

    class VirtualDNS:
            virtual public wns::ldk::Layer,
            public wns::node::component::Component
    {
    public:
        typedef wns::service::nl::FQDN DomainName;
        typedef wns::service::nl::Address NLAddress;
        typedef wns::container::Registry<DomainName, NLAddress> DNSContainer;

        VirtualDNS(
            wns::node::Interface* _node,
            const wns::pyconfig::View& _pyco);

        virtual ~VirtualDNS();

        virtual void
        doStartup();

        NLAddress
        request(DomainName name);

        void
        bind(DomainName name, NLAddress ip);

        void
        unbind(DomainName name);

        virtual void
        onNodeCreated();

        virtual void
        onWorldCreated();

        virtual void
        onShutdown();

    private:

        wns::logger::Logger log;

        std::string dnsZone;

        DNSContainer dnsLookup;
    };

    class VirtualDNSService {

    public:
        VirtualDNSService();

        void
        addSubnet(std::string subnetIdentifier,
                  VirtualDNS* server);

        VirtualDNS*
        getZoneManager(std::string subnetIdentifier);

    private:
        wns::logger::Logger log;

        wns::container::Registry<std::string, VirtualDNS*> servers;
    };

    typedef wns::SingletonHolder<VirtualDNSService> TheDNSService;

} // ip
#endif //_IP_VIRTUALDNS_HPP

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