LLAddressing.hh

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//
// Copyright (c) 2020 Fraunhofer Institute for Applied Information Technology (FIT)
//                    Network Research Group (NET)
//                    Schloss Birlinghoven, 53754 Sankt Augustin, GERMANY
//                    Contact: support@wiback.org
//
// This file is part of the SENF code tree.
// It is licensed under the 3-clause BSD License (aka New BSD License).
// See LICENSE.txt in the top level directory for details or visit
// https://opensource.org/licenses/BSD-3-Clause
//


#ifndef HH_SENF_Socket_Protocols_Raw_LLAddressing_
#define HH_SENF_Socket_Protocols_Raw_LLAddressing_ 1

// Custom includes
#include <sys/socket.h>
#include <linux/if_packet.h>
#include <senf/Socket/Protocols/BSDAddressingPolicy.hh>
#include <senf/Socket/Protocols/BSDSocketAddress.hh>
#include "MACAddress.hh"

//#include "LLAddressing.mpp"
//#include "LLAddressing.ih"
//-/////////////////////////////////////////////////////////////////////////////////////////////////

namespace senf {

    //\{

    class LLSocketAddress
        : public BSDSocketAddress
    {
    public:
        static short const addressFamily = AF_PACKET;

        enum PktType { Undefined = 0
                     , Host      = PACKET_HOST      
                     , Broadcast = PACKET_BROADCAST 
                     , Multicast = PACKET_MULTICAST 
                     , OtherHost = PACKET_OTHERHOST 
                     , Outgoing  = PACKET_OUTGOING  
        };

        //-////////////////////////////////////////////////////////////////////////
        //\{

        LLSocketAddress();              
        explicit LLSocketAddress(unsigned proto, std::string const & iface="");

        explicit LLSocketAddress(std::string const & iface);

        // This constructor is for sending packets
        explicit LLSocketAddress(MACAddress const & addr, std::string const & iface="");

        LLSocketAddress(LLSocketAddress const & other);
        LLSocketAddress& operator=(LLSocketAddress const & other);

        //\}
        //-////////////////////////////////////////////////////////////////////////

        MACAddress address() const;     
        std::string interface() const;  
        unsigned protocol() const;      

        unsigned arptype() const;       
        PktType pkttype() const;        

        // The mutating interface is purposely restricted to allow only
        // changing those members, which are sensible to be changed.

        void address(MACAddress const & addr); 
        void interface(std::string const & iface); 

        void protocol(unsigned prot);   

        using BSDSocketAddress::sockaddr_p;
        using BSDSocketAddress::socklen_p;

    private:
        struct ::sockaddr_ll addr_;
    };

    //\}

    //\{

    struct LLAddressingPolicy
        : public BSDAddressingPolicy,
          private BSDAddressingPolicyMixin<LLSocketAddress>
    {
        typedef LLSocketAddress Address;

        using BSDAddressingPolicyMixin<LLSocketAddress>::local;
        using BSDAddressingPolicyMixin<LLSocketAddress>::bind;
        using BSDAddressingPolicyMixin<LLSocketAddress>::connect;
    };

    //\}

    std::ostream & operator<<(std::ostream & os, LLSocketAddress const & llAddr);
}

//-/////////////////////////////////////////////////////////////////////////////////////////////////
#include "LLAddressing.cci"
//#include "LLAddressing.ct"
//#include "LLAddressing.cti"
//#include "LLAddressing.mpp"
#endif


// Local Variables:
// mode: c++
// fill-column: 100
// c-file-style: "senf"
// indent-tabs-mode: nil
// ispell-local-dictionary: "american"
// compile-command: "scons -u test"
// comment-column: 40
// End: