105 lines
2.6 KiB
C++
105 lines
2.6 KiB
C++
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#ifndef MAC_ADDRESS_HPP_FDINBLBS
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#define MAC_ADDRESS_HPP_FDINBLBS
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#include <vanetza/common/serialization.hpp>
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#include <boost/operators.hpp>
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#include <boost/optional.hpp>
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#include <array>
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#include <cstddef>
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#include <cstdint>
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#include <initializer_list>
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#include <functional>
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#include <ostream>
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#include <string>
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namespace vanetza
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{
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class MacAddress : public boost::totally_ordered<MacAddress>
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{
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public:
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static constexpr std::size_t length_bytes = 6;
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MacAddress();
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MacAddress(std::initializer_list<uint8_t> args);
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MacAddress(const MacAddress&) = default;
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MacAddress& operator=(const MacAddress&) = default;
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MacAddress(MacAddress&&) = default;
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MacAddress& operator=(MacAddress&&) = default;
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std::array<uint8_t, length_bytes> octets;
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};
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extern const MacAddress cBroadcastMacAddress;
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bool operator==(const MacAddress& lhs, const MacAddress& rhs);
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bool operator<(const MacAddress& lhs, const MacAddress& rhs);
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std::ostream& operator<<(std::ostream& os, const MacAddress&);
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/**
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* Try to parse MAC address from string
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* \param str source string with "XX:XX:XX:XX:XX:XX" format
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* \param addr pass parsed address by reference
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* \return true if successfully parsed
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*/
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bool parse_mac_address(const std::string& str, MacAddress& addr);
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/**
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* Try to parse MAC address from string
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* \param str source string with "XX:XX:XX:XX:XX:XX" format
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* \return parsed address if successful
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*/
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boost::optional<MacAddress> parse_mac_address(const std::string& str);
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/**
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* Derive a MAC address from an arbitrary integral value.
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* \param value used to derive MAC address, it's size does not matter
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* \return New MAC address
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*/
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template<typename T>
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MacAddress create_mac_address(T value)
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{
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MacAddress mac;
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const std::size_t octets = std::min(mac.octets.size(), sizeof(T));
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for (std::size_t i = 0; i < octets; ++i) {
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mac.octets[i] = value >> (8 * (octets - i - 1)) & 0xff;
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}
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return mac;
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}
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/**
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* Serialize MAC address
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* \param out output sink
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* \param addr MAC address
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*/
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void serialize(OutputArchive& out, const MacAddress& addr);
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/**
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* Deserialize MAC address
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* \param in input source
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* \param addr deserialize into this object
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*/
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void deserialize(InputArchive& in, MacAddress& addr);
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} // namespace vanetza
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// specialization
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namespace std {
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template<>
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struct hash<vanetza::MacAddress>
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{
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size_t operator()(const vanetza::MacAddress& addr) const
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{
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size_t tmp = 0;
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for (auto octet : addr.octets) {
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tmp ^= hash<decltype(octet)>()(octet);
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}
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return tmp;
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}
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};
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} // namespace std
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#endif /* MAC_ADDRESS_HPP_FDINBLBS */
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