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108 lines
2.3 KiB
C++
108 lines
2.3 KiB
C++
// Copyright 2014 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#pragma once
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#include <array>
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#include <optional>
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#include <string>
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#include <string_view>
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#include "Common/CommonTypes.h"
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struct sockaddr_in;
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namespace Common
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{
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enum class MACConsumer
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{
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BBA,
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IOS
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};
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enum
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{
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MAC_ADDRESS_SIZE = 6
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};
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using MACAddress = std::array<u8, MAC_ADDRESS_SIZE>;
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constexpr std::size_t IPV4_ADDR_LEN = 4;
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struct EthernetHeader
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{
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EthernetHeader();
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explicit EthernetHeader(u16 ether_type);
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u16 Size() const;
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static constexpr std::size_t SIZE = 14;
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MACAddress destination = {};
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MACAddress source = {};
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u16 ethertype = 0;
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};
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static_assert(sizeof(EthernetHeader) == EthernetHeader::SIZE);
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struct IPv4Header
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{
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IPv4Header();
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IPv4Header(u16 data_size, u8 ip_proto, const sockaddr_in& from, const sockaddr_in& to);
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u16 Size() const;
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static constexpr std::size_t SIZE = 20;
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u8 version_ihl = 0;
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u8 dscp_esn = 0;
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u16 total_len = 0;
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u16 identification = 0;
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u16 flags_fragment_offset = 0;
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u8 ttl = 0;
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u8 protocol = 0;
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u16 header_checksum = 0;
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u8 source_addr[IPV4_ADDR_LEN]{};
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u8 destination_addr[IPV4_ADDR_LEN]{};
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};
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static_assert(sizeof(IPv4Header) == IPv4Header::SIZE);
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struct TCPHeader
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{
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TCPHeader();
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TCPHeader(const sockaddr_in& from, const sockaddr_in& to, u32 seq, const u8* data, u16 length);
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u16 Size() const;
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u8 IPProto() const;
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static constexpr std::size_t SIZE = 20;
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u16 source_port = 0;
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u16 destination_port = 0;
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u32 sequence_number = 0;
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u32 acknowledgement_number = 0;
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u16 properties = 0;
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u16 window_size = 0;
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u16 checksum = 0;
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u16 urgent_pointer = 0;
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};
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static_assert(sizeof(TCPHeader) == TCPHeader::SIZE);
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struct UDPHeader
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{
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UDPHeader();
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UDPHeader(const sockaddr_in& from, const sockaddr_in& to, u16 data_length);
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u16 Size() const;
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u8 IPProto() const;
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static constexpr std::size_t SIZE = 8;
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u16 source_port = 0;
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u16 destination_port = 0;
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u16 length = 0;
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u16 checksum = 0;
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};
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static_assert(sizeof(UDPHeader) == UDPHeader::SIZE);
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MACAddress GenerateMacAddress(MACConsumer type);
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std::string MacAddressToString(const MACAddress& mac);
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std::optional<MACAddress> StringToMacAddress(std::string_view mac_string);
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u16 ComputeNetworkChecksum(const void* data, u16 length, u32 initial_value = 0);
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} // namespace Common
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