macaddr.hpp

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//    OpenVPN -- An application to securely tunnel IP networks
//               over a single port, with support for SSL/TLS-based
//               session authentication and key exchange,
//               packet encryption, packet authentication, and
//               packet compression.
//
//    Copyright (C) 2012- OpenVPN Inc.
//
//    SPDX-License-Identifier: MPL-2.0 OR AGPL-3.0-only WITH openvpn3-openssl-exception
//
 
#ifndef OPENVPN_ADDR_MACADDR_H
#define OPENVPN_ADDR_MACADDR_H
 
#include <string>
#include <array>
 
#include <openvpn/common/ostream.hpp>
#include <openvpn/common/hexstr.hpp>
 
namespace openvpn {
 
// Fundamental class for representing an ethernet MAC address.
 
class MACAddr
{
  public:
    MACAddr() = default;
 
    MACAddr(const unsigned char *addr)
    {
        reset(addr);
    }
 
    void reset(const unsigned char *addr)
    {
        std::copy_n(addr, addr_.size(), addr_.begin());
    }
 
    std::string to_string() const
    {
        return render_hex_sep(addr_.data(), addr_.size(), ':');
    }
 
  private:
    std::array<unsigned char, 6> addr_{};
};
 
OPENVPN_OSTREAM(MACAddr, to_string)
 
} // namespace openvpn
 
#endif // OPENVPN_ADDR_MACADDR_H