/// <summary>
/// Pushes this frame to the output queue and adds the ethernet component of this frame according to the given destination address and interface properties.<br />
/// If fFrame contains an Ethernet component, the Ethernet component is removed.
/// </summary>
/// <param name="fFrame">The frame to send.</param>
/// <param name="ipaDestination">The next hop's IP address of the given frame</param>
/// <param name="ethType">The ether type of fFrame</param>
public void Send(Frame fFrame, IPAddress ipaDestination, EtherType ethType)
{
EthernetFrame ethFrame = this.GetEthernetFrame(fFrame);
if (ethFrame != null)
{
fFrame = ethFrame.EncapsulatedFrame;
}
ethFrame = new EthernetFrame();
if (ipaDestination.Equals(IPAddress.Broadcast))
{
ethFrame.Destination = new MACAddress(new byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF });
}
else if (this.arpHostTable.Contains(ipaDestination))
{
ethFrame.Destination = arpHostTable.GetEntry(ipaDestination).MAC;
}
else
{
StartResolve(ipaDestination);
ethFrame.Destination = new MACAddress(new byte[] { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF });
}
ethFrame.EtherType = ethType;
ethFrame.EncapsulatedFrame = fFrame;
if (!lmacSpoofAdresses.Contains(ethFrame.Source))
{
ethFrame.Source = this.PrimaryMACAddress;
}
Send(ethFrame);
}
public static void ApproximateConvert(double valueGiven, out double resultValue, EtherType givenType, EtherType wantedType)
{
HashValue(givenType, out double multiGiven);
double given = valueGiven * multiGiven;
HashValue(wantedType, out double multiTo);
resultValue = given / multiTo;
}
/// <summary>
/// Creates a new instance of this class
/// </summary>
public EthernetFrame()
{
maSource = new MACAddress();
maDestination = new MACAddress();
bVlanTagExists = false;
iVlanID = 0;
iVlanPriotity = 0;
bCanocialFormatIndicator = false;
etEtherType = EtherType.IPv4;
}
/// <summary>
/// Initializes a new instance of the EthernetFrame class using the
/// specified values.
/// </summary>
/// <param name="destination">The physical address of the destination
/// host.</param>
/// <param name="source">The physical address of the source host.</param>
/// <param name="payload">The data transmitted in the frame's payload
/// field.</param>
/// <param name="checkSequence">The value to set as the frame's
/// check sequence.</param>
/// <param name="type">The type of the encapsulated protocol.</param>
/// <exception cref="ArgumentNullException">Thrown if any of the
/// arguments is null.</exception>
/// <remarks>This is a private constructor solely used for
/// deserialization.</remarks>
private Frame(MacAddress destination, MacAddress source,
byte[] payload, uint checkSequence, EtherType type)
{
destination.ThrowIfNull("destination");
source.ThrowIfNull("source");
payload.ThrowIfNull("payload");
Destination = destination;
Source = source;
Payload = payload;
Type = type;
CheckSequence = checkSequence;
}
/// <summary>
/// Creates a new instance of this class
/// </summary>
public ARPFrame()
{
arpHardwareAddressType = HardwareAddressType.Ethernet;
arpProtocolAddressType = EtherType.IPv4;
arpOperation = ARPOperation.Request;
macSource = new MACAddress();
macDestination = new MACAddress();
ipaSource = IPAddress.Any;
ipaDestination = IPAddress.Any;
this.fEncapsulatedFrame = null;
}
public static void TryParse(string inValue, out string outValue, EtherType inType, EtherType outType)
{
decimal.TryParse(inValue, out decimal inValueDeci);
ApproximateConvert(inValueDeci, out decimal outValueDeci, inType, outType);
if (outType == EtherType.Wei)
{
outValue = string.Format("{0:0}", outValueDeci);
}
else
{
outValue = string.Format("{0}", outValueDeci);
}
}
/// <summary>
/// Wraps the specified data into an Ethernet frame and queues it
/// for transmission.
/// </summary>
/// <param name="destination">The MAC address of the destination
/// host.</param>
/// <param name="data">The data to transmit as part of the frame's
/// payload.</param>
/// <param name="type">The type of the data.</param>
public override void Output(MacAddress destination, byte[] data,
EtherType type = EtherType.IPv4)
{
destination.ThrowIfNull("destination");
data.ThrowIfNull("data");
// Start emptying the FIFO, if we're not already doing it.
if (emptyingFifo == false)
{
Simulation.Callback(0, EmptySendFifo);
}
// Enqueue the data.
sendFifo.Enqueue(new Frame(destination, MacAddress, data, type));
}
public EthernetPacket(BinaryReader binaryReader, uint Length)
{
Dest = new MACAddress(binaryReader);
Source = new MACAddress(binaryReader);
Proto = (EtherType)BitConverter.ToUInt16(Util.ReverseBytes(binaryReader.ReadBytes(2)), 0);
if (Proto == EtherType.IPv4) // IPv4
{
Data = new IPv4Packet(binaryReader, Length);
}
else if (Proto == EtherType.IPv6) // IPv6
{
}
}
public static void HashValue(EtherType type, out decimal value)
{
switch (type)
{
case EtherType.Wei: value = 1; return;
case EtherType.GWei: value = 1000000000; return;
case EtherType.Ether: value = 1000000000000000000; return;
default:
break;
}
throw new Exception("Should not be reach");
}
public static string GetStringCompressionOf(EtherType type)
{
switch (type)
{
case EtherType.Wei:
return("Wei");
case EtherType.GWei:
return("GWei");
case EtherType.Ether:
return("ETH");
default:
break;
}
return("");
}
/// <summary>
/// Interrupt method invoked on behalf of the link-layer of the specified
/// interface whenever frame payload data can be delivered to the network
/// layer.
/// </summary>
/// <param name="ifc">The interface through which the data was received.</param>
/// <param name="type">The type of the received data.</param>
/// <param name="data">A sequence of bytes received.</param>
/// <exception cref="ArgumentNullException">Thrown if the ifc or the data
/// argument is null.</exception>
/// <remarks>This API is exposed to the data-link layer.</remarks>
public void OnInput(Interface ifc, byte[] data, EtherType type)
{
ifc.ThrowIfNull("ifc");
data.ThrowIfNull("data");
switch (type)
{
case EtherType.ARP:
OnArpInput(ifc, data);
break;
case EtherType.IPv4:
OnIpInput(ifc, data);
break;
default:
WriteLine("Unsupported Ethertype (" + type + "), ignoring data");
break;
}
}
/// <summary>
/// Инициализация фрейма.
/// </summary>
/// <param name = "packet">Данные.</param>
/// <param name = "proto">Тип данных (протокол).</param>
/// <param name = "source">MAC-адрес источника.</param>
/// <param name = "destination">MAC-адрес назначения.</param>
/// <exception cref = "ArgumentNullException"><paramref name = "packet" /> является <c>null</c>.</exception>
/// <exception cref = "ArgumentNullException"><paramref name = "source" /> является <c>null</c>.</exception>
/// <exception cref = "ArgumentNullException"><paramref name = "destination" /> является <c>null</c>.</exception>
protected EthernetFrameBase(IPacket packet, EtherType proto, MACAddress source, MACAddress destination)
{
if (packet == null)
throw new ArgumentNullException ("packet");
if (source == null)
throw new ArgumentNullException ("source");
if (destination == null)
throw new ArgumentNullException ("destination");
this.Data = new Array <byte> (new byte[14 + packet.Data.Length]);
this.Destination = destination;
this.Source = source;
this.SetType (proto);
for (var i = 0; i < packet.Data.Length; ++i)
this.Data [14 + i] = packet.Data [i];
}
/// <summary>
/// Инициализация фрейма.
/// </summary>
/// <param name = "packet">Данные.</param>
/// <param name = "proto">Тип данных (протокол).</param>
/// <param name = "vlan">Номер vlan.</param>
/// <param name = "source">MAC-адрес источника.</param>
/// <param name = "destination">MAC-адрес назначения.</param>
/// <exception cref = "ArgumentNullException"><paramref name = "packet" /> является <c>null</c>.</exception>
/// <exception cref = "ArgumentNullException"><paramref name = "source" /> является <c>null</c>.</exception>
/// <exception cref = "ArgumentNullException"><paramref name = "destination" /> является <c>null</c>.</exception>
public TaggedEthernetFrame(IPacket packet,
EtherType proto,
short vlan,
MACAddress source,
MACAddress destination)
: base(packet == null ? 0 : (packet.Data.Length + 4), EtherType.Tagged, source, destination)
{
if (packet == null)
throw new ArgumentNullException ("packet");
this.Data [14] = this.Data [15] = 0;
this.CanonicalFormatIndicator = false;
this.PriorityCodePoint = 0;
this.VlanID = vlan;
this.Type = proto;
for (var i = 0; i < packet.Data.Length; ++i)
this.Data [18 + i] = packet.Data [i];
}
/// <summary>
/// Initializes a new EthernetFrame instance using the specified values.
/// </summary>
/// <param name="destination">The physical address of the destination
/// host.</param>
/// <param name="source">The physical address of the source host.</param>
/// <param name="payload">The data transmitted in the frame's payload
/// field.</param>
/// <param name="type">The type of the encapsulated protocol.</param>
/// <exception cref="ArgumentNullException">Thrown if any of the
/// arguments is null.</exception>
/// <exception cref="ArgumentException">Thrown if the payload parameter
/// does not satisfy the Ethernet 802.3 length requirements.</exception>
public Frame(MacAddress destination, MacAddress source,
byte[] payload, EtherType type) {
destination.ThrowIfNull("destination");
source.ThrowIfNull("source");
payload.ThrowIfNull("payload");
if (payload.Length > MaximumPayloadSize)
throw new ArgumentException("The frame payload data must " +
"not exceed 1500 bytes of data.", nameof(payload));
Destination = destination;
Source = source;
Payload = payload;
Type = type;
CheckSequence = Crc32.Compute(
new ByteBuilder()
.Append(Destination.Bytes)
.Append(Source.Bytes)
.Append((short)Type)
.Append(Payload)
.ToArray()
);
}
/// <summary>
/// Creates a new instance of this class by parsing the given data
/// </summary>
/// <param name="bData">The data to parse</param>
public EthernetFrame(byte[] bData)
{
//Pad is not used by pcap.
//if (bData.Length < 64)
//{
// throw new ArgumentException("Invalid packet length");
//}
byte[] bSourceAddressbytes = new byte[6];
byte[] bDestinationAddressbytes = new byte[6];
byte[] bEncapsulatedData = null;
for (int iC1 = 0; iC1 < 6; iC1++)
{
bDestinationAddressbytes[iC1] = bData[iC1];
bSourceAddressbytes[iC1] = bData[iC1 + 6];
}
maSource = new MACAddress(bSourceAddressbytes);
maDestination = new MACAddress(bDestinationAddressbytes);
etEtherType = (EtherType)((bData[12] << 8) + bData[13]);
if (etEtherType == EtherType.VLANTag)
{
bVlanTagExists = true;
bCanocialFormatIndicator = (bData[14] & 0x80) > 0 ? true : false;
iVlanPriotity = (bData[14] & 0x70) >> 4;
iVlanID = (bData[14] & 0x0F) * 256 + bData[15];
etEtherType = (EtherType)(bData[16] * 256 + bData[17]);
bEncapsulatedData = new byte[bData.Length - 18];
Encapsulate(bData, 18);
}
else
{
bVlanTagExists = false;
Encapsulate(bData, 14);
}
}
/// <summary>
/// Initializes a new EthernetFrame instance using the specified values.
/// </summary>
/// <param name="destination">The physical address of the destination
/// host.</param>
/// <param name="source">The physical address of the source host.</param>
/// <param name="payload">The data transmitted in the frame's payload
/// field.</param>
/// <param name="type">The type of the encapsulated protocol.</param>
/// <exception cref="ArgumentNullException">Thrown if any of the
/// arguments is null.</exception>
/// <exception cref="ArgumentException">Thrown if the payload parameter
/// does not satisfy the Ethernet 802.3 length requirements.</exception>
public Frame(MacAddress destination, MacAddress source,
byte[] payload, EtherType type)
{
destination.ThrowIfNull("destination");
source.ThrowIfNull("source");
payload.ThrowIfNull("payload");
if (payload.Length > MaximumPayloadSize)
{
throw new ArgumentException("The frame payload data must " +
"not exceed 1500 bytes of data.", nameof(payload));
}
Destination = destination;
Source = source;
Payload = payload;
Type = type;
CheckSequence = Crc32.Compute(
new ByteBuilder()
.Append(Destination.Bytes)
.Append(Source.Bytes)
.Append((short)Type)
.Append(Payload)
.ToArray()
);
}
/// <summary>
/// Initializes a new instance of the EthernetFrame class using the
/// specified values.
/// </summary>
/// <param name="destination">The physical address of the destination
/// host.</param>
/// <param name="source">The physical address of the source host.</param>
/// <param name="payload">The data transmitted in the frame's payload
/// field.</param>
/// <param name="checkSequence">The value to set as the frame's
/// check sequence.</param>
/// <param name="type">The type of the encapsulated protocol.</param>
/// <exception cref="ArgumentNullException">Thrown if any of the
/// arguments is null.</exception>
/// <remarks>This is a private constructor solely used for
/// deserialization.</remarks>
private Frame(MacAddress destination, MacAddress source,
byte[] payload, uint checkSequence, EtherType type) {
destination.ThrowIfNull("destination");
source.ThrowIfNull("source");
payload.ThrowIfNull("payload");
Destination = destination;
Source = source;
Payload = payload;
Type = type;
CheckSequence = checkSequence;
}
/// <summary>
/// Initializes a new instance of the DataReceivedEventArgs class.
/// </summary>
/// <param name="data">The data that was transmitted.</param>
/// <param name="type">The protocol encapsulated in the payload of the Ethernet
/// frame.</param>
public DataReceivedEventArgs(byte[] data, EtherType type)
{
Data = data;
Type = type;
}
/// <summary>
/// Creates a newinstance of this class from the given data.
/// </summary>
/// <param name="bData">The data to parse.</param>
public ARPFrame(byte[] bData)
{
arpHardwareAddressType = (HardwareAddressType)((int)((bData[0] << 8) + bData[1]));
arpProtocolAddressType = (EtherType)((int)((bData[2] << 8) + bData[3]));
int iHardwareAddressLength = bData[4];
int iProtocolAddressLength = bData[5];
arpOperation = (ARPOperation)((int)((bData[6] << 8) + bData[7]));
if (arpHardwareAddressType != HardwareAddressType.Ethernet || (arpProtocolAddressType != EtherType.IPv4 && arpProtocolAddressType != EtherType.IPv6))
{
throw new ArgumentException("Only IPv6 and IPv4 in conjunction with ethernet is supported at the moment.");
}
if (iHardwareAddressLength != 6 && arpHardwareAddressType != HardwareAddressType.Ethernet)
{
throw new ArgumentException("The hardware address type of the ARP frame indicates Ethernet, but the address data is not 6 bytes long.");
}
if (iProtocolAddressLength != 4 && EtherType.IPv4 == arpProtocolAddressType)
{
throw new ArgumentException("The protocol address type of the ARP frame indicates IPv4, but the address data is not 4 bytes long.");
}
if (iProtocolAddressLength != 16 && EtherType.IPv6 == arpProtocolAddressType)
{
throw new ArgumentException("The protocol address type of the ARP frame indicates IPv6, but the address data is not 16 bytes long.");
}
int iC1 = 8;
byte[] bAddress = new byte[iHardwareAddressLength];
for (int iC2 = 0; iC2 < iHardwareAddressLength; iC2++)
{
Array.Copy(bData, iC1, bAddress, 0, iHardwareAddressLength);
}
iC1 += iHardwareAddressLength;
macSource = new MACAddress(bAddress);
bAddress = new byte[iProtocolAddressLength];
Array.Copy(bData, iC1, bAddress, 0, iProtocolAddressLength);
iC1 += iProtocolAddressLength;
ipaSource = new IPAddress(bAddress);
bAddress = new byte[iHardwareAddressLength];
Array.Copy(bData, iC1, bAddress, 0, iHardwareAddressLength);
iC1 += iHardwareAddressLength;
macDestination = new MACAddress(bAddress);
bAddress = new byte[iProtocolAddressLength];
Array.Copy(bData, iC1, bAddress, 0, iProtocolAddressLength);
iC1 += iProtocolAddressLength;
ipaDestination = new IPAddress(bAddress);
byte[] bPad = new byte[bData.Length - iC1];
for (int iC2 = 0; iC2 < bPad.Length; iC2++)
{
bPad[iC2] = bData[iC2 + iC1];
}
this.fEncapsulatedFrame = new RawDataFrame(bPad);
}
private void SetType(EtherType value)
{
this.Data [12] = (byte) ((ushort) value >> 8);
this.Data [13] = (byte) ((ushort) value & 0xFF);
}
/// <summary>
/// Constructs a new data-link frame for the specified destination,
/// containing the specified data as payload.
/// </summary>
/// <param name="destination">The phyical destination address.</param>
/// <param name="data">The data to send as the frame's payload.</param>
/// <param name="type">The type of the data.</param>
/// <exception cref="ArgumentNullException">Thrown if the destination
/// or the data parameter is null.</exception>
public abstract void Output(MacAddress destination, byte[] data,
EtherType type);
/// <summary>
/// Wraps the specified data into an Ethernet frame and queues it
/// for transmission.
/// </summary>
/// <param name="destination">The MAC address of the destination
/// host.</param>
/// <param name="data">The data to transmit as part of the frame's
/// payload.</param>
/// <param name="type">The type of the data.</param>
public override void Output(MacAddress destination, byte[] data,
EtherType type = EtherType.IPv4) {
destination.ThrowIfNull("destination");
data.ThrowIfNull("data");
// Start emptying the FIFO, if we're not already doing it.
if (emptyingFifo == false)
Simulation.Callback(0, EmptySendFifo);
// Enqueue the data.
sendFifo.Enqueue(new Frame(destination, MacAddress, data, type));
}
public static void ApproximateConvert(decimal valueGiven, out decimal resultValue, EtherType givenType, EtherType wantedType)
{
HashValue(givenType, out decimal multiGiven);
decimal given = (valueGiven) * multiGiven;
HashValue(wantedType, out decimal multiTo);
resultValue = given / multiTo;
}
public EthereumDecimalValue(decimal value, EtherType sourceType)
{
m_value = value;
m_sourceType = sourceType;
}
/// <summary>
/// Инициализация фрейма.
/// </summary>
/// <param name = "packet">Данные.</param>
/// <param name = "proto">Тип данных (протокол).</param>
/// <param name = "source">MAC-адрес источника.</param>
/// <param name = "destination">MAC-адрес назначения.</param>
/// <exception cref = "ArgumentNullException"><paramref name = "packet" /> является <c>null</c>.</exception>
/// <exception cref = "ArgumentNullException"><paramref name = "source" /> является <c>null</c>.</exception>
/// <exception cref = "ArgumentNullException"><paramref name = "destination" /> является <c>null</c>.</exception>
public EthernetFrame(IPacket packet, EtherType proto, MACAddress source, MACAddress destination)
: base(packet, proto, source, destination)
{
}
public void SetWith(IEtherValue value)
{
value.Get(out EtherType t, out decimal v);
this.m_sourceType = t;
this.m_value = (double)v;
}
/// <summary>
/// Hands down the specified data to the data-link layer implementation of the NIC.
/// </summary>
/// <param name="destination">The phyical destination address.</param>
/// <param name="data">The data to send as the frame's payload.</param>
/// <param name="type">The type of the data.</param>
public void Output(MacAddress destination, byte[] data, EtherType type =
EtherType.IPv4)
{
Nic.Output(destination, data, type);
}
public void Get(out EtherType typeUsedToStore, out double storedValue)
{
typeUsedToStore = m_sourceType;
storedValue = (double)m_value;
}
private void WriteEthernetHeader(EtherType etherType)
{
writter.Write(mac1);
writter.Write(mac2);
writter.Write(IPAddress.HostToNetworkOrder((short)etherType));
}
/// <summary> /// Constructs a new data-link frame for the specified destination, /// containing the specified data as payload. /// </summary> /// <param name="destination">The phyical destination address.</param> /// <param name="data">The data to send as the frame's payload.</param> /// <param name="type">The type of the data.</param> /// <exception cref="ArgumentNullException">Thrown if the destination /// or the data parameter is null.</exception> public abstract void Output(MacAddress destination, byte[] data, EtherType type);
/// <summary>
/// Initializes a new instance of the DataReceivedEventArgs class.
/// </summary>
/// <param name="data">The data that was transmitted.</param>
/// <param name="type">The protocol encapsulated in the payload of the Ethernet
/// frame.</param>
public DataReceivedEventArgs(byte[] data, EtherType type) {
Data = data;
Type = type;
}
/// <summary>
/// Hands down the specified data to the data-link layer implementation of the NIC.
/// </summary>
/// <param name="destination">The phyical destination address.</param>
/// <param name="data">The data to send as the frame's payload.</param>
/// <param name="type">The type of the data.</param>
public void Output(MacAddress destination, byte[] data, EtherType type =
EtherType.IPv4) {
Nic.Output(destination, data, type);
}
public void Get(out EtherType typeUsedToStore, out decimal storedValue)
{
typeUsedToStore = m_sourceType;
storedValue = (decimal)m_value;
}
private void WriteEthernetHeader(EtherType etherType)
{
writter.Write(mac1);
writter.Write(mac2);
writter.Write(IPAddress.HostToNetworkOrder((short)etherType));
}
public void Get(EtherType type, out double approximation)
{
EthereumConverttion.ApproximateConvert(m_value, out approximation, m_sourceType, type);
}
public EthereumDoubleValue(double value, EtherType sourecType)
{
m_value = value;
m_sourceType = sourecType;
}
public static string ToString(IEtherValue ethereumDoubleValue, EtherType wantedType, string decimalFormat = "{0:0.00} {1}")
{
ethereumDoubleValue.Get(out EtherType currentValueType, out double currentvalue);
ApproximateConvert(currentvalue, out double resultvalue, currentValueType, wantedType);
return(string.Format(decimalFormat, resultvalue, wantedType));
}
/// <summary>
/// Инициализация фрейма.
/// </summary>
/// <param name = "length">Длина данных.</param>
/// <param name = "proto">Тип данных (протокол).</param>
/// <param name = "source">MAC-адрес источника.</param>
/// <param name = "destination">MAC-адрес назначения.</param>
/// <exception cref = "ArgumentNullException"><paramref name = "source" /> является <c>null</c>.</exception>
/// <exception cref = "ArgumentNullException"><paramref name = "destination" /> является <c>null</c>.</exception>
protected EthernetFrameBase(int length, EtherType proto, MACAddress source, MACAddress destination)
{
if (source == null)
throw new ArgumentNullException ("source");
if (destination == null)
throw new ArgumentNullException ("destination");
this.Data = new Array <byte> (new byte[14 + length]);
this.Destination = destination;
this.Source = source;
this.SetType (proto);
}
public void FillWithChecksums(EtherType[] supportedEtherTypes, IPProtocolType[] supportedIpProtocolTypes)
{
var packetNetIpProtocols = supportedIpProtocolTypes.Select(x => (PacketDotNet.IPProtocolType)x).ToArray();
var packetNetEtherTypes = supportedEtherTypes.Select(x => (EthernetPacketType)x).ToArray();
packet.RecursivelyUpdateCalculatedValues(packetNetEtherTypes, packetNetIpProtocols);
}
