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17e0ba4914
Commit ad73adef5d needlessly introduced an IPv4 directory.
If we were to keep it, sharing common headers between IPv4 and IPv6
would be much messier, and may potentially increase code duplication.
This change renames the IPv4 directory to IP to aid with later IPv6
porting efforts.
72 lines
2.4 KiB
C++
72 lines
2.4 KiB
C++
/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#pragma once
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#include <AK/Endian.h>
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#include <AK/MACAddress.h>
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#include <Kernel/Net/EtherType.h>
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#include <Kernel/Net/IP/IPv4.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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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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MACAddress const& sender_hardware_address() const { return m_sender_hardware_address; }
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void set_sender_hardware_address(MACAddress const& address) { m_sender_hardware_address = address; }
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IPv4Address const& sender_protocol_address() const { return m_sender_protocol_address; }
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void set_sender_protocol_address(IPv4Address const& address) { m_sender_protocol_address = address; }
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MACAddress const& target_hardware_address() const { return m_target_hardware_address; }
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void set_target_hardware_address(MACAddress const& address) { m_target_hardware_address = address; }
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IPv4Address const& target_protocol_address() const { return m_target_protocol_address; }
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void set_target_protocol_address(IPv4Address const& 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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