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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/Endian.h>
#include <AK/MACAddress.h>
#include <Kernel/Net/EtherType.h>
#include <Kernel/Net/IPv4.h>
namespace Kernel {
struct ARPOperation {
enum : u16 {
Request = 1,
Response = 2,
};
};
struct ARPHardwareType {
enum : u16 {
Ethernet = 1,
};
};
class [[gnu::packed]] ARPPacket {
public:
u16 hardware_type() const { return m_hardware_type; }
void set_hardware_type(u16 w) { m_hardware_type = w; }
u16 protocol_type() const { return m_protocol_type; }
void set_protocol_type(u16 w) { m_protocol_type = w; }
u8 hardware_address_length() const { return m_hardware_address_length; }
void set_hardware_address_length(u8 b) { m_hardware_address_length = b; }
u8 protocol_address_length() const { return m_protocol_address_length; }
void set_protocol_address_length(u8 b) { m_protocol_address_length = b; }
u16 operation() const { return m_operation; }
void set_operation(u16 w) { m_operation = w; }
const MACAddress& sender_hardware_address() const { return m_sender_hardware_address; }
void set_sender_hardware_address(const MACAddress& address) { m_sender_hardware_address = address; }
const IPv4Address& sender_protocol_address() const { return m_sender_protocol_address; }
void set_sender_protocol_address(const IPv4Address& address) { m_sender_protocol_address = address; }
const MACAddress& target_hardware_address() const { return m_target_hardware_address; }
void set_target_hardware_address(const MACAddress& address) { m_target_hardware_address = address; }
const IPv4Address& target_protocol_address() const { return m_target_protocol_address; }
void set_target_protocol_address(const IPv4Address& address) { m_target_protocol_address = address; }
private:
NetworkOrdered<u16> m_hardware_type { ARPHardwareType::Ethernet };
NetworkOrdered<u16> m_protocol_type { EtherType::IPv4 };
u8 m_hardware_address_length { sizeof(MACAddress) };
u8 m_protocol_address_length { sizeof(IPv4Address) };
NetworkOrdered<u16> m_operation;
MACAddress m_sender_hardware_address;
IPv4Address m_sender_protocol_address;
MACAddress m_target_hardware_address;
IPv4Address m_target_protocol_address;
};
static_assert(sizeof(ARPPacket) == 28);
}
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