netlink_protocol.hpp

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#ifndef JOIN_FABRIC_NETLINK_PROTOCOL_HPP
#define JOIN_FABRIC_NETLINK_PROTOCOL_HPP
 
// libjoin.
#include <join/netlink_endpoint.hpp>
#include <join/protocol.hpp>
 
namespace join
{
    class Netlink
    {
    public:
        using Endpoint = BasicNetlinkEndpoint<Netlink>;
        using Socket = BasicDatagramSocket<Netlink>;
 
        constexpr Netlink (int proto = NETLINK_ROUTE) noexcept
        : _proto (proto)
        {
        }
 
        static inline Netlink& rt () noexcept
        {
            static Netlink route (NETLINK_ROUTE);
            return route;
        }
 
        static inline Netlink& nf () noexcept
        {
            static Netlink netfilter (NETLINK_NETFILTER);
            return netfilter;
        }
 
        constexpr int family () const noexcept
        {
            return AF_NETLINK;
        }
 
        constexpr int type () const noexcept
        {
            return SOCK_RAW;
        }
 
        constexpr int protocol () const noexcept
        {
            return _proto;
        }
 
    private:
        int _proto;
    };
 
    constexpr bool operator== (const Netlink& a, const Netlink& b) noexcept
    {
        return a.protocol () == b.protocol ();
    }
 
    constexpr bool operator!= (const Netlink& a, const Netlink& b) noexcept
    {
        return !(a == b);
    }
}
 
#endif