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Fix styling

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This commit is contained in:
Sijmen 2020-12-28 13:36:16 +01:00
parent aec510a47c
commit 4059e4be88
Signed by: vijfhoek
GPG key ID: DAF7821E067D9C48
9 changed files with 267 additions and 251 deletions
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3
src/net-arp.h
View file

@ -5,7 +5,8 @@
namespace Net::Arp namespace Net::Arp
{ {
enum Operation { enum Operation
{
ARP_OPERATION_REQUEST = 1, ARP_OPERATION_REQUEST = 1,
ARP_OPERATION_REPLY = 2, ARP_OPERATION_REPLY = 2,
}; };

15
src/net-dhcp.cpp
View file

@ -36,7 +36,8 @@ namespace Net::Dhcp
size_t Header::Serialize(uint8_t* buffer, const size_t size) const size_t Header::Serialize(uint8_t* buffer, const size_t size) const
{ {
if (size < Header::SerializedLength()) { if (size < Header::SerializedLength())
{
return 0; return 0;
} }
@ -84,7 +85,8 @@ namespace Net::Dhcp
size_t Header::Deserialize( size_t Header::Deserialize(
Header& out, const uint8_t* buffer, const size_t size Header& out, const uint8_t* buffer, const size_t size
) { ) {
if (size < SerializedLength()) { if (size < SerializedLength())
{
return 0; return 0;
} }
@ -158,7 +160,8 @@ namespace Net::Dhcp
size += udpHeader.Serialize(buffer + size); size += udpHeader.Serialize(buffer + size);
size += dhcpHeader.Serialize(buffer + size, USPI_FRAME_BUFFER_SIZE - size); size += dhcpHeader.Serialize(buffer + size, USPI_FRAME_BUFFER_SIZE - size);
if (size != expectedSize) { if (size != expectedSize)
{
// TODO Log // TODO Log
return; return;
} }
@ -212,7 +215,8 @@ namespace Net::Dhcp
size += udpHeader.Serialize(buffer + size); size += udpHeader.Serialize(buffer + size);
size += dhcpHeader.Serialize(buffer + size, USPI_FRAME_BUFFER_SIZE - size); size += dhcpHeader.Serialize(buffer + size, USPI_FRAME_BUFFER_SIZE - size);
if (size != expectedSize) { if (size != expectedSize)
{
// TODO Log // TODO Log
return; return;
} }
@ -254,7 +258,8 @@ namespace Net::Dhcp
) { ) {
auto dhcpHeader = Header(); auto dhcpHeader = Header();
const auto dhcpSize = Header::Deserialize(dhcpHeader, buffer, size); const auto dhcpSize = Header::Deserialize(dhcpHeader, buffer, size);
if (dhcpSize == 0) { if (dhcpSize == 0)
{
// TODO log // TODO log
return; return;
} }

3
src/net-ethernet.cpp
View file

@ -1,7 +1,8 @@
#include <cstring> #include <cstring>
#include "net-ethernet.h" #include "net-ethernet.h"
namespace Net::Ethernet { namespace Net::Ethernet
{
Header::Header() Header::Header()
{} {}

46
src/net-icmp.cpp
View file

@ -6,26 +6,26 @@
IcmpPacketHeader::IcmpPacketHeader() {} IcmpPacketHeader::IcmpPacketHeader() {}
IcmpPacketHeader::IcmpPacketHeader(std::uint8_t type, std::uint8_t code) : IcmpPacketHeader::IcmpPacketHeader(std::uint8_t type, std::uint8_t code) :
type(type), code(code), checksum(0) type(type), code(code), checksum(0)
{} {}
std::size_t IcmpPacketHeader::Serialize(uint8_t* buffer) const std::size_t IcmpPacketHeader::Serialize(uint8_t* buffer) const
{ {
size_t i = 0; size_t i = 0;
buffer[i++] = type; buffer[i++] = type;
buffer[i++] = code; buffer[i++] = code;
buffer[i++] = checksum; buffer[i++] = checksum;
buffer[i++] = checksum >> 8; buffer[i++] = checksum >> 8;
return i; return i;
} }
IcmpPacketHeader IcmpPacketHeader::Deserialize(const uint8_t* buffer) IcmpPacketHeader IcmpPacketHeader::Deserialize(const uint8_t* buffer)
{ {
IcmpPacketHeader self; IcmpPacketHeader self;
self.type = buffer[0]; self.type = buffer[0];
self.code = buffer[1]; self.code = buffer[1];
self.checksum = buffer[2] << 8 | buffer[3]; self.checksum = buffer[2] << 8 | buffer[3];
return self; return self;
} }
// //
@ -33,22 +33,22 @@ IcmpPacketHeader IcmpPacketHeader::Deserialize(const uint8_t* buffer)
// //
IcmpEchoHeader::IcmpEchoHeader() : IcmpEchoHeader(0, 0) {} IcmpEchoHeader::IcmpEchoHeader() : IcmpEchoHeader(0, 0) {}
IcmpEchoHeader::IcmpEchoHeader(uint16_t identifier, uint16_t sequenceNumber) : IcmpEchoHeader::IcmpEchoHeader(uint16_t identifier, uint16_t sequenceNumber) :
identifier(identifier), sequenceNumber(sequenceNumber) {} identifier(identifier), sequenceNumber(sequenceNumber) {}
size_t IcmpEchoHeader::Serialize(uint8_t* buffer) const size_t IcmpEchoHeader::Serialize(uint8_t* buffer) const
{ {
size_t i = 0; size_t i = 0;
buffer[i++] = identifier >> 8; buffer[i++] = identifier >> 8;
buffer[i++] = identifier; buffer[i++] = identifier;
buffer[i++] = sequenceNumber >> 8; buffer[i++] = sequenceNumber >> 8;
buffer[i++] = sequenceNumber; buffer[i++] = sequenceNumber;
return i; return i;
} }
IcmpEchoHeader IcmpEchoHeader::Deserialize(const uint8_t* buffer) IcmpEchoHeader IcmpEchoHeader::Deserialize(const uint8_t* buffer)
{ {
IcmpEchoHeader self; IcmpEchoHeader self;
self.identifier = buffer[0] << 8 | buffer[1]; self.identifier = buffer[0] << 8 | buffer[1];
self.sequenceNumber = buffer[2] << 8 | buffer[3]; self.sequenceNumber = buffer[2] << 8 | buffer[3];
return self; return self;
} }

112
src/net-ipv4.cpp
View file

@ -4,80 +4,80 @@
Ipv4Header::Ipv4Header() {} Ipv4Header::Ipv4Header() {}
Ipv4Header::Ipv4Header( Ipv4Header::Ipv4Header(
uint8_t protocol, uint32_t sourceIp, uint32_t destinationIp, uint16_t totalLength uint8_t protocol, uint32_t sourceIp, uint32_t destinationIp, uint16_t totalLength
) : ) :
version(4), version(4),
ihl(5), ihl(5),
dscp(0), dscp(0),
ecn(0), ecn(0),
totalLength(totalLength), totalLength(totalLength),
identification(0), identification(0),
flags(0), flags(0),
fragmentOffset(0), fragmentOffset(0),
ttl(64), ttl(64),
protocol(protocol), protocol(protocol),
headerChecksum(0), headerChecksum(0),
sourceIp(sourceIp), sourceIp(sourceIp),
destinationIp(destinationIp) destinationIp(destinationIp)
{} {}
size_t Ipv4Header::Serialize(uint8_t* buffer) const size_t Ipv4Header::Serialize(uint8_t* buffer) const
{ {
size_t i = 0; size_t i = 0;
buffer[i++] = version << 4 | ihl; buffer[i++] = version << 4 | ihl;
buffer[i++] = dscp << 2 | ecn; buffer[i++] = dscp << 2 | ecn;
buffer[i++] = totalLength >> 8; buffer[i++] = totalLength >> 8;
buffer[i++] = totalLength; buffer[i++] = totalLength;
buffer[i++] = identification >> 8; buffer[i++] = identification >> 8;
buffer[i++] = identification; buffer[i++] = identification;
buffer[i++] = (flags << 13 | fragmentOffset) >> 8; buffer[i++] = (flags << 13 | fragmentOffset) >> 8;
buffer[i++] = flags << 13 | fragmentOffset; buffer[i++] = flags << 13 | fragmentOffset;
buffer[i++] = ttl; buffer[i++] = ttl;
buffer[i++] = protocol; buffer[i++] = protocol;
// Zero the checksum before calculating it // Zero the checksum before calculating it
buffer[i++] = 0; buffer[i++] = 0;
buffer[i++] = 0 >> 8; buffer[i++] = 0 >> 8;
buffer[i++] = sourceIp >> 24; buffer[i++] = sourceIp >> 24;
buffer[i++] = sourceIp >> 16; buffer[i++] = sourceIp >> 16;
buffer[i++] = sourceIp >> 8; buffer[i++] = sourceIp >> 8;
buffer[i++] = sourceIp; buffer[i++] = sourceIp;
buffer[i++] = destinationIp >> 24; buffer[i++] = destinationIp >> 24;
buffer[i++] = destinationIp >> 16; buffer[i++] = destinationIp >> 16;
buffer[i++] = destinationIp >> 8; buffer[i++] = destinationIp >> 8;
buffer[i++] = destinationIp; buffer[i++] = destinationIp;
uint16_t checksum = Net::Utils::InternetChecksum(buffer, i); uint16_t checksum = Net::Utils::InternetChecksum(buffer, i);
buffer[10] = checksum; buffer[10] = checksum;
buffer[11] = checksum >> 8; buffer[11] = checksum >> 8;
return i; return i;
} }
Ipv4Header Ipv4Header::Deserialize(const uint8_t* buffer) Ipv4Header Ipv4Header::Deserialize(const uint8_t* buffer)
{ {
Ipv4Header self; Ipv4Header self;
self.version = buffer[0] >> 4; self.version = buffer[0] >> 4;
self.ihl = buffer[0] & 0x0F; self.ihl = buffer[0] & 0x0F;
self.dscp = buffer[1] >> 2; self.dscp = buffer[1] >> 2;
self.ecn = buffer[1] & 0x03; self.ecn = buffer[1] & 0x03;
self.totalLength = buffer[2] << 8 | buffer[3]; self.totalLength = buffer[2] << 8 | buffer[3];
self.identification = buffer[4] << 8 | buffer[5]; self.identification = buffer[4] << 8 | buffer[5];
self.flags = buffer[6] >> 5; self.flags = buffer[6] >> 5;
self.fragmentOffset = (buffer[6] & 0x1F) << 8 | buffer[7]; self.fragmentOffset = (buffer[6] & 0x1F) << 8 | buffer[7];
self.ttl = buffer[8]; self.ttl = buffer[8];
self.protocol = buffer[9]; self.protocol = buffer[9];
self.headerChecksum = buffer[10] << 8 | buffer[11]; self.headerChecksum = buffer[10] << 8 | buffer[11];
self.sourceIp = buffer[12] << 24 | buffer[13] << 16 | buffer[14] << 8 | buffer[15]; self.sourceIp = buffer[12] << 24 | buffer[13] << 16 | buffer[14] << 8 | buffer[15];
self.destinationIp = self.destinationIp =
buffer[16] << 24 | buffer[17] << 16 | buffer[18] << 8 | buffer[19]; buffer[16] << 24 | buffer[17] << 16 | buffer[18] << 8 | buffer[19];
return self; return self;
} }

3
src/net-tftp.cpp
View file

@ -296,7 +296,8 @@ namespace Net::Tftp
size_t DataPacket::Deserialize( size_t DataPacket::Deserialize(
DataPacket& out, const uint8_t* buffer, size_t size DataPacket& out, const uint8_t* buffer, size_t size
) { ) {
if (size < sizeof(opcode) + sizeof(blockNumber)) { if (size < sizeof(opcode) + sizeof(blockNumber))
{
return 0; return 0;
} }

9
src/net-tftp.h
View file

@ -4,7 +4,8 @@
#include <vector> #include <vector>
#include "net-udp.h" #include "net-udp.h"
namespace Net::Tftp { namespace Net::Tftp
{
const size_t TFTP_BLOCK_SIZE = 512; const size_t TFTP_BLOCK_SIZE = 512;
enum class Opcode : uint16_t enum class Opcode : uint16_t
@ -20,9 +21,11 @@ namespace Net::Tftp {
{ {
Opcode opcode; Opcode opcode;
Packet(Opcode opcode) : opcode(opcode) {} Packet(Opcode opcode) : opcode(opcode)
{}
virtual size_t SerializedLength() const { virtual size_t SerializedLength() const
{
return sizeof(opcode); return sizeof(opcode);
} }

118
src/net-udp.cpp
View file

@ -4,68 +4,68 @@
namespace Net::Udp namespace Net::Udp
{ {
Header::Header() Header::Header()
{} {}
Header::Header( Header::Header(
Port sourcePort, Port sourcePort,
Port destinationPort, Port destinationPort,
uint16_t length uint16_t length
) : ) :
sourcePort(sourcePort), sourcePort(sourcePort),
destinationPort(destinationPort), destinationPort(destinationPort),
length(length), length(length),
checksum(0) checksum(0)
{} {}
size_t Header::Serialize(uint8_t* buffer) const size_t Header::Serialize(uint8_t* buffer) const
{ {
size_t i = 0; size_t i = 0;
buffer[i++] = static_cast<uint16_t>(sourcePort) >> 8; buffer[i++] = static_cast<uint16_t>(sourcePort) >> 8;
buffer[i++] = static_cast<uint16_t>(sourcePort); buffer[i++] = static_cast<uint16_t>(sourcePort);
buffer[i++] = static_cast<uint16_t>(destinationPort) >> 8; buffer[i++] = static_cast<uint16_t>(destinationPort) >> 8;
buffer[i++] = static_cast<uint16_t>(destinationPort); buffer[i++] = static_cast<uint16_t>(destinationPort);
buffer[i++] = length >> 8; buffer[i++] = length >> 8;
buffer[i++] = length; buffer[i++] = length;
buffer[i++] = checksum >> 8; buffer[i++] = checksum >> 8;
buffer[i++] = checksum; buffer[i++] = checksum;
return i; return i;
} }
Header Header::Deserialize(const uint8_t* buffer) Header Header::Deserialize(const uint8_t* buffer)
{ {
Header self; Header self;
self.sourcePort = static_cast<Port>(buffer[0] << 8 | buffer[1]); self.sourcePort = static_cast<Port>(buffer[0] << 8 | buffer[1]);
self.destinationPort = static_cast<Port>(buffer[2] << 8 | buffer[3]); self.destinationPort = static_cast<Port>(buffer[2] << 8 | buffer[3]);
self.length = buffer[4] << 8 | buffer[5]; self.length = buffer[4] << 8 | buffer[5];
self.checksum = buffer[6] << 8 | buffer[7]; self.checksum = buffer[6] << 8 | buffer[7];
return self; return self;
} }
void HandlePacket( void HandlePacket(
const Ethernet::Header ethernetHeader, const Ethernet::Header ethernetHeader,
const Ipv4Header ipv4Header, const Ipv4Header ipv4Header,
const uint8_t* buffer, const uint8_t* buffer,
const size_t size const size_t size
) { ) {
const auto udpHeader = Header::Deserialize(buffer); const auto udpHeader = Header::Deserialize(buffer);
if (udpHeader.destinationPort == Port::DhcpClient) if (udpHeader.destinationPort == Port::DhcpClient)
{ {
Dhcp::HandlePacket( Dhcp::HandlePacket(
ethernetHeader, ethernetHeader,
buffer + udpHeader.SerializedLength(), buffer + udpHeader.SerializedLength(),
size - udpHeader.SerializedLength() size - udpHeader.SerializedLength()
); );
} }
else if (udpHeader.destinationPort == Port::Tftp) else if (udpHeader.destinationPort == Port::Tftp)
{ {
Tftp::HandlePacket( Tftp::HandlePacket(
ethernetHeader, ethernetHeader,
ipv4Header, ipv4Header,
udpHeader, udpHeader,
buffer + udpHeader.SerializedLength() buffer + udpHeader.SerializedLength()
); );
} }
} }
}; // namespace Net::Udp }; // namespace Net::Udp

209
src/net-utils.cpp
View file

@ -5,118 +5,123 @@
namespace Net::Utils namespace Net::Utils
{ {
const MacAddress MacBroadcast{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF}; const MacAddress MacBroadcast{0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF};
uint32_t Ipv4Address = 0xC0A80164; uint32_t Ipv4Address = 0xC0A80164;
static const uint32_t crcTab32[256] = { static const uint32_t crcTab32[256] =
0x00000000ul, 0x77073096ul, 0xEE0E612Cul, 0x990951BAul, {
0x076DC419ul, 0x706AF48Ful, 0xE963A535ul, 0x9E6495A3ul, 0x00000000ul, 0x77073096ul, 0xEE0E612Cul, 0x990951BAul,
0x0EDB8832ul, 0x79DCB8A4ul, 0xE0D5E91Eul, 0x97D2D988ul, 0x076DC419ul, 0x706AF48Ful, 0xE963A535ul, 0x9E6495A3ul,
0x09B64C2Bul, 0x7EB17CBDul, 0xE7B82D07ul, 0x90BF1D91ul, 0x0EDB8832ul, 0x79DCB8A4ul, 0xE0D5E91Eul, 0x97D2D988ul,
0x1DB71064ul, 0x6AB020F2ul, 0xF3B97148ul, 0x84BE41DEul, 0x09B64C2Bul, 0x7EB17CBDul, 0xE7B82D07ul, 0x90BF1D91ul,
0x1ADAD47Dul, 0x6DDDE4EBul, 0xF4D4B551ul, 0x83D385C7ul, 0x1DB71064ul, 0x6AB020F2ul, 0xF3B97148ul, 0x84BE41DEul,
0x136C9856ul, 0x646BA8C0ul, 0xFD62F97Aul, 0x8A65C9ECul, 0x1ADAD47Dul, 0x6DDDE4EBul, 0xF4D4B551ul, 0x83D385C7ul,
0x14015C4Ful, 0x63066CD9ul, 0xFA0F3D63ul, 0x8D080DF5ul, 0x136C9856ul, 0x646BA8C0ul, 0xFD62F97Aul, 0x8A65C9ECul,
0x3B6E20C8ul, 0x4C69105Eul, 0xD56041E4ul, 0xA2677172ul, 0x14015C4Ful, 0x63066CD9ul, 0xFA0F3D63ul, 0x8D080DF5ul,
0x3C03E4D1ul, 0x4B04D447ul, 0xD20D85FDul, 0xA50AB56Bul, 0x3B6E20C8ul, 0x4C69105Eul, 0xD56041E4ul, 0xA2677172ul,
0x35B5A8FAul, 0x42B2986Cul, 0xDBBBC9D6ul, 0xACBCF940ul, 0x3C03E4D1ul, 0x4B04D447ul, 0xD20D85FDul, 0xA50AB56Bul,
0x32D86CE3ul, 0x45DF5C75ul, 0xDCD60DCFul, 0xABD13D59ul, 0x35B5A8FAul, 0x42B2986Cul, 0xDBBBC9D6ul, 0xACBCF940ul,
0x26D930ACul, 0x51DE003Aul, 0xC8D75180ul, 0xBFD06116ul, 0x32D86CE3ul, 0x45DF5C75ul, 0xDCD60DCFul, 0xABD13D59ul,
0x21B4F4B5ul, 0x56B3C423ul, 0xCFBA9599ul, 0xB8BDA50Ful, 0x26D930ACul, 0x51DE003Aul, 0xC8D75180ul, 0xBFD06116ul,
0x2802B89Eul, 0x5F058808ul, 0xC60CD9B2ul, 0xB10BE924ul, 0x21B4F4B5ul, 0x56B3C423ul, 0xCFBA9599ul, 0xB8BDA50Ful,
0x2F6F7C87ul, 0x58684C11ul, 0xC1611DABul, 0xB6662D3Dul, 0x2802B89Eul, 0x5F058808ul, 0xC60CD9B2ul, 0xB10BE924ul,
0x76DC4190ul, 0x01DB7106ul, 0x98D220BCul, 0xEFD5102Aul, 0x2F6F7C87ul, 0x58684C11ul, 0xC1611DABul, 0xB6662D3Dul,
0x71B18589ul, 0x06B6B51Ful, 0x9FBFE4A5ul, 0xE8B8D433ul, 0x76DC4190ul, 0x01DB7106ul, 0x98D220BCul, 0xEFD5102Aul,
0x7807C9A2ul, 0x0F00F934ul, 0x9609A88Eul, 0xE10E9818ul, 0x71B18589ul, 0x06B6B51Ful, 0x9FBFE4A5ul, 0xE8B8D433ul,
0x7F6A0DBBul, 0x086D3D2Dul, 0x91646C97ul, 0xE6635C01ul, 0x7807C9A2ul, 0x0F00F934ul, 0x9609A88Eul, 0xE10E9818ul,
0x6B6B51F4ul, 0x1C6C6162ul, 0x856530D8ul, 0xF262004Eul, 0x7F6A0DBBul, 0x086D3D2Dul, 0x91646C97ul, 0xE6635C01ul,
0x6C0695EDul, 0x1B01A57Bul, 0x8208F4C1ul, 0xF50FC457ul, 0x6B6B51F4ul, 0x1C6C6162ul, 0x856530D8ul, 0xF262004Eul,
0x65B0D9C6ul, 0x12B7E950ul, 0x8BBEB8EAul, 0xFCB9887Cul, 0x6C0695EDul, 0x1B01A57Bul, 0x8208F4C1ul, 0xF50FC457ul,
0x62DD1DDFul, 0x15DA2D49ul, 0x8CD37CF3ul, 0xFBD44C65ul, 0x65B0D9C6ul, 0x12B7E950ul, 0x8BBEB8EAul, 0xFCB9887Cul,
0x4DB26158ul, 0x3AB551CEul, 0xA3BC0074ul, 0xD4BB30E2ul, 0x62DD1DDFul, 0x15DA2D49ul, 0x8CD37CF3ul, 0xFBD44C65ul,
0x4ADFA541ul, 0x3DD895D7ul, 0xA4D1C46Dul, 0xD3D6F4FBul, 0x4DB26158ul, 0x3AB551CEul, 0xA3BC0074ul, 0xD4BB30E2ul,
0x4369E96Aul, 0x346ED9FCul, 0xAD678846ul, 0xDA60B8D0ul, 0x4ADFA541ul, 0x3DD895D7ul, 0xA4D1C46Dul, 0xD3D6F4FBul,
0x44042D73ul, 0x33031DE5ul, 0xAA0A4C5Ful, 0xDD0D7CC9ul, 0x4369E96Aul, 0x346ED9FCul, 0xAD678846ul, 0xDA60B8D0ul,
0x5005713Cul, 0x270241AAul, 0xBE0B1010ul, 0xC90C2086ul, 0x44042D73ul, 0x33031DE5ul, 0xAA0A4C5Ful, 0xDD0D7CC9ul,
0x5768B525ul, 0x206F85B3ul, 0xB966D409ul, 0xCE61E49Ful, 0x5005713Cul, 0x270241AAul, 0xBE0B1010ul, 0xC90C2086ul,
0x5EDEF90Eul, 0x29D9C998ul, 0xB0D09822ul, 0xC7D7A8B4ul, 0x5768B525ul, 0x206F85B3ul, 0xB966D409ul, 0xCE61E49Ful,
0x59B33D17ul, 0x2EB40D81ul, 0xB7BD5C3Bul, 0xC0BA6CADul, 0x5EDEF90Eul, 0x29D9C998ul, 0xB0D09822ul, 0xC7D7A8B4ul,
0xEDB88320ul, 0x9ABFB3B6ul, 0x03B6E20Cul, 0x74B1D29Aul, 0x59B33D17ul, 0x2EB40D81ul, 0xB7BD5C3Bul, 0xC0BA6CADul,
0xEAD54739ul, 0x9DD277AFul, 0x04DB2615ul, 0x73DC1683ul, 0xEDB88320ul, 0x9ABFB3B6ul, 0x03B6E20Cul, 0x74B1D29Aul,
0xE3630B12ul, 0x94643B84ul, 0x0D6D6A3Eul, 0x7A6A5AA8ul, 0xEAD54739ul, 0x9DD277AFul, 0x04DB2615ul, 0x73DC1683ul,
0xE40ECF0Bul, 0x9309FF9Dul, 0x0A00AE27ul, 0x7D079EB1ul, 0xE3630B12ul, 0x94643B84ul, 0x0D6D6A3Eul, 0x7A6A5AA8ul,
0xF00F9344ul, 0x8708A3D2ul, 0x1E01F268ul, 0x6906C2FEul, 0xE40ECF0Bul, 0x9309FF9Dul, 0x0A00AE27ul, 0x7D079EB1ul,
0xF762575Dul, 0x806567CBul, 0x196C3671ul, 0x6E6B06E7ul, 0xF00F9344ul, 0x8708A3D2ul, 0x1E01F268ul, 0x6906C2FEul,
0xFED41B76ul, 0x89D32BE0ul, 0x10DA7A5Aul, 0x67DD4ACCul, 0xF762575Dul, 0x806567CBul, 0x196C3671ul, 0x6E6B06E7ul,
0xF9B9DF6Ful, 0x8EBEEFF9ul, 0x17B7BE43ul, 0x60B08ED5ul, 0xFED41B76ul, 0x89D32BE0ul, 0x10DA7A5Aul, 0x67DD4ACCul,
0xD6D6A3E8ul, 0xA1D1937Eul, 0x38D8C2C4ul, 0x4FDFF252ul, 0xF9B9DF6Ful, 0x8EBEEFF9ul, 0x17B7BE43ul, 0x60B08ED5ul,
0xD1BB67F1ul, 0xA6BC5767ul, 0x3FB506DDul, 0x48B2364Bul, 0xD6D6A3E8ul, 0xA1D1937Eul, 0x38D8C2C4ul, 0x4FDFF252ul,
0xD80D2BDAul, 0xAF0A1B4Cul, 0x36034AF6ul, 0x41047A60ul, 0xD1BB67F1ul, 0xA6BC5767ul, 0x3FB506DDul, 0x48B2364Bul,
0xDF60EFC3ul, 0xA867DF55ul, 0x316E8EEFul, 0x4669BE79ul, 0xD80D2BDAul, 0xAF0A1B4Cul, 0x36034AF6ul, 0x41047A60ul,
0xCB61B38Cul, 0xBC66831Aul, 0x256FD2A0ul, 0x5268E236ul, 0xDF60EFC3ul, 0xA867DF55ul, 0x316E8EEFul, 0x4669BE79ul,
0xCC0C7795ul, 0xBB0B4703ul, 0x220216B9ul, 0x5505262Ful, 0xCB61B38Cul, 0xBC66831Aul, 0x256FD2A0ul, 0x5268E236ul,
0xC5BA3BBEul, 0xB2BD0B28ul, 0x2BB45A92ul, 0x5CB36A04ul, 0xCC0C7795ul, 0xBB0B4703ul, 0x220216B9ul, 0x5505262Ful,
0xC2D7FFA7ul, 0xB5D0CF31ul, 0x2CD99E8Bul, 0x5BDEAE1Dul, 0xC5BA3BBEul, 0xB2BD0B28ul, 0x2BB45A92ul, 0x5CB36A04ul,
0x9B64C2B0ul, 0xEC63F226ul, 0x756AA39Cul, 0x026D930Aul, 0xC2D7FFA7ul, 0xB5D0CF31ul, 0x2CD99E8Bul, 0x5BDEAE1Dul,
0x9C0906A9ul, 0xEB0E363Ful, 0x72076785ul, 0x05005713ul, 0x9B64C2B0ul, 0xEC63F226ul, 0x756AA39Cul, 0x026D930Aul,
0x95BF4A82ul, 0xE2B87A14ul, 0x7BB12BAEul, 0x0CB61B38ul, 0x9C0906A9ul, 0xEB0E363Ful, 0x72076785ul, 0x05005713ul,
0x92D28E9Bul, 0xE5D5BE0Dul, 0x7CDCEFB7ul, 0x0BDBDF21ul, 0x95BF4A82ul, 0xE2B87A14ul, 0x7BB12BAEul, 0x0CB61B38ul,
0x86D3D2D4ul, 0xF1D4E242ul, 0x68DDB3F8ul, 0x1FDA836Eul, 0x92D28E9Bul, 0xE5D5BE0Dul, 0x7CDCEFB7ul, 0x0BDBDF21ul,
0x81BE16CDul, 0xF6B9265Bul, 0x6FB077E1ul, 0x18B74777ul, 0x86D3D2D4ul, 0xF1D4E242ul, 0x68DDB3F8ul, 0x1FDA836Eul,
0x88085AE6ul, 0xFF0F6A70ul, 0x66063BCAul, 0x11010B5Cul, 0x81BE16CDul, 0xF6B9265Bul, 0x6FB077E1ul, 0x18B74777ul,
0x8F659EFFul, 0xF862AE69ul, 0x616BFFD3ul, 0x166CCF45ul, 0x88085AE6ul, 0xFF0F6A70ul, 0x66063BCAul, 0x11010B5Cul,
0xA00AE278ul, 0xD70DD2EEul, 0x4E048354ul, 0x3903B3C2ul, 0x8F659EFFul, 0xF862AE69ul, 0x616BFFD3ul, 0x166CCF45ul,
0xA7672661ul, 0xD06016F7ul, 0x4969474Dul, 0x3E6E77DBul, 0xA00AE278ul, 0xD70DD2EEul, 0x4E048354ul, 0x3903B3C2ul,
0xAED16A4Aul, 0xD9D65ADCul, 0x40DF0B66ul, 0x37D83BF0ul, 0xA7672661ul, 0xD06016F7ul, 0x4969474Dul, 0x3E6E77DBul,
0xA9BCAE53ul, 0xDEBB9EC5ul, 0x47B2CF7Ful, 0x30B5FFE9ul, 0xAED16A4Aul, 0xD9D65ADCul, 0x40DF0B66ul, 0x37D83BF0ul,
0xBDBDF21Cul, 0xCABAC28Aul, 0x53B39330ul, 0x24B4A3A6ul, 0xA9BCAE53ul, 0xDEBB9EC5ul, 0x47B2CF7Ful, 0x30B5FFE9ul,
0xBAD03605ul, 0xCDD70693ul, 0x54DE5729ul, 0x23D967BFul, 0xBDBDF21Cul, 0xCABAC28Aul, 0x53B39330ul, 0x24B4A3A6ul,
0xB3667A2Eul, 0xC4614AB8ul, 0x5D681B02ul, 0x2A6F2B94ul, 0xBAD03605ul, 0xCDD70693ul, 0x54DE5729ul, 0x23D967BFul,
0xB40BBE37ul, 0xC30C8EA1ul, 0x5A05DF1Bul, 0x2D02EF8Dul 0xB3667A2Eul, 0xC4614AB8ul, 0x5D681B02ul, 0x2A6F2B94ul,
}; 0xB40BBE37ul, 0xC30C8EA1ul, 0x5A05DF1Bul, 0x2D02EF8Dul
};
uint32_t Crc32(const uint8_t *buffer, size_t size) { uint32_t Crc32(const uint8_t *buffer, size_t size)
uint32_t crc = 0xFFFFFFFFul; {
uint32_t crc = 0xFFFFFFFFul;
for (size_t a = 0; a < size; a++) for (size_t a = 0; a < size; a++)
{ {
auto index = (crc ^ (uint32_t)*buffer++) & 0x000000FFul; auto index = (crc ^ (uint32_t)*buffer++) & 0x000000FFul;
crc = (crc >> 8) ^ crcTab32[index]; crc = (crc >> 8) ^ crcTab32[index];
} }
return crc ^ 0xFFFFFFFFul; return crc ^ 0xFFFFFFFFul;
} }
uint16_t InternetChecksum(const void* data, size_t size) uint16_t InternetChecksum(const void* data, size_t size)
{ {
uint32_t sum = 0; uint32_t sum = 0;
while (size > 1) { while (size > 1)
sum += *(uint16_t*)data; {
data = (uint16_t*)data + 1; sum += *(uint16_t*)data;
data = (uint16_t*)data + 1;
size -= 2; size -= 2;
} }
if (size > 0) { if (size > 0)
sum += *(uint16_t*)data; {
} sum += *(uint16_t*)data;
}
while (sum >> 16) { while (sum >> 16)
sum = (sum & 0xFFFF) + (sum >> 16); {
} sum = (sum & 0xFFFF) + (sum >> 16);
}
return ~sum; return ~sum;
} }
MacAddress GetMacAddress() MacAddress GetMacAddress()
{ {
static MacAddress macAddress{0}; static MacAddress macAddress{0};
if (macAddress == MacAddress{0}) if (macAddress == MacAddress{0})
{ {
USPiGetMACAddress(macAddress.data()); USPiGetMACAddress(macAddress.data());
} }
return macAddress; return macAddress;
} }
}; // namespace Net::Utils }; // namespace Net::Utils