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94 lines
3.6 KiB
C++
94 lines
3.6 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include <AK/NetworkOrdered.h>
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#include <Kernel/Net/EtherType.h>
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#include <Kernel/Net/IPv4.h>
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#include <Kernel/Net/MACAddress.h>
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namespace Kernel {
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struct ARPOperation {
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enum : u16 {
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Request = 1,
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Response = 2,
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};
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};
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struct ARPHardwareType {
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enum : u16 {
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Ethernet = 1,
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};
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};
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class [[gnu::packed]] ARPPacket
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{
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public:
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u16 hardware_type() const { return m_hardware_type; }
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void set_hardware_type(u16 w) { m_hardware_type = w; }
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u16 protocol_type() const { return m_protocol_type; }
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void set_protocol_type(u16 w) { m_protocol_type = w; }
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u8 hardware_address_length() const { return m_hardware_address_length; }
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void set_hardware_address_length(u8 b) { m_hardware_address_length = b; }
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u8 protocol_address_length() const { return m_protocol_address_length; }
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void set_protocol_address_length(u8 b) { m_protocol_address_length = b; }
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u16 operation() const { return m_operation; }
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void set_operation(u16 w) { m_operation = w; }
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const MACAddress& sender_hardware_address() const { return m_sender_hardware_address; }
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void set_sender_hardware_address(const MACAddress& address) { m_sender_hardware_address = address; }
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const IPv4Address& sender_protocol_address() const { return m_sender_protocol_address; }
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void set_sender_protocol_address(const IPv4Address& address) { m_sender_protocol_address = address; }
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const MACAddress& target_hardware_address() const { return m_target_hardware_address; }
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void set_target_hardware_address(const MACAddress& address) { m_target_hardware_address = address; }
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const IPv4Address& target_protocol_address() const { return m_target_protocol_address; }
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void set_target_protocol_address(const IPv4Address& address) { m_target_protocol_address = address; }
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private:
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NetworkOrdered<u16> m_hardware_type { ARPHardwareType::Ethernet };
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NetworkOrdered<u16> m_protocol_type { EtherType::IPv4 };
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u8 m_hardware_address_length { sizeof(MACAddress) };
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u8 m_protocol_address_length { sizeof(IPv4Address) };
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NetworkOrdered<u16> m_operation;
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MACAddress m_sender_hardware_address;
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IPv4Address m_sender_protocol_address;
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MACAddress m_target_hardware_address;
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IPv4Address m_target_protocol_address;
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};
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static_assert(sizeof(ARPPacket) == 28);
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}
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