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/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include <AK/AllOf.h>
#include <AK/Array.h>
#include <AK/Assertions.h>
#include <AK/String.h>
#include <AK/Types.h>
class [[gnu::packed]] MACAddress
{
static constexpr size_t s_mac_address_length = 6u;
public:
constexpr MACAddress() = default;
constexpr MACAddress(u8 a, u8 b, u8 c, u8 d, u8 e, u8 f)
{
m_data[0] = a;
m_data[1] = b;
m_data[2] = c;
m_data[3] = d;
m_data[4] = e;
m_data[5] = f;
}
constexpr ~MACAddress() = default;
constexpr const u8& operator[](unsigned i) const
{
ASSERT(i < s_mac_address_length);
return m_data[i];
}
constexpr u8& operator[](unsigned i)
{
ASSERT(i < s_mac_address_length);
return m_data[i];
}
constexpr bool operator==(const MACAddress& other) const
{
for (auto i = 0u; i < m_data.size(); ++i) {
if (m_data[i] != other.m_data[i]) {
return false;
}
}
return true;
}
String to_string() const
{
return String::formatted("{:02x}:{:02x}:{:02x}:{:02x}:{:02x}:{:02x}", m_data[0], m_data[1], m_data[2], m_data[3], m_data[4], m_data[5]);
}
constexpr bool is_zero() const
{
return AK::all_of(m_data.begin(), m_data.end(), [](const auto octet) { return octet == 0; });
}
private:
AK::Array<u8, s_mac_address_length> m_data {};
};
static_assert(sizeof(MACAddress) == 6u);
namespace AK {
template<>
struct Traits<MACAddress> : public GenericTraits<MACAddress> {
static unsigned hash(const MACAddress& address) { return string_hash((const char*)&address, sizeof(address)); }
};
}
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