Class IPPacket

Represents an IP (Internet Protocol) packet.

Inheritance

System.Object

EthernetPacket

IPPacket

ICMPPacket

TCPPacket

UDPPacket

Inherited Members

EthernetPacket.srcMAC

EthernetPacket.destMAC

EthernetPacket.RawData

System.Object.Equals(System.Object)

System.Object.Equals(System.Object, System.Object)

System.Object.GetHashCode()

System.Object.GetType()

System.Object.MemberwiseClone()

System.Object.ReferenceEquals(System.Object, System.Object)

Namespace: Cosmos.System.Network.IPv4

Assembly: Cosmos.System2.dll

Syntax

public class IPPacket : EthernetPacket

Remarks

See also: EthernetPacket.

Constructors

IPPacket(MACAddress, MACAddress, UInt16, Byte, Address, Address, Byte)

Initializes a new instance of the IPPacket class.

Declaration

public IPPacket(MACAddress srcMAC, MACAddress destMAC, ushort dataLength, byte protocol, Address source, Address dest, byte Flags)

Parameters

Type	Name	Description
MACAddress	srcMAC	Source MAC address.
MACAddress	destMAC	Destination MAC address.
System.UInt16	dataLength	Data length.
System.Byte	protocol	Protocol.
Address	source	Source address.
Address	dest	Destionation address.
System.Byte	Flags	Flags.

IPPacket(Byte[])

Create new instance of the IPPacket class.

Declaration

public IPPacket(byte[] rawData)

Parameters

Type	Name	Description
System.Byte[]	rawData	Raw data.

IPPacket(UInt16, Byte, Address, Address, Byte)

Initializes a new instance of the IPPacket class.

Declaration

protected IPPacket(ushort dataLength, byte protocol, Address source, Address dest, byte Flags)

Parameters

Type	Name	Description
System.UInt16	dataLength	Data length.
System.Byte	protocol	Protocol.
Address	source	Source address.
Address	dest	Destionation address.
System.Byte	Flags	Flags.

IPPacket(UInt16, Byte, Address, Address, Byte, MACAddress)

Initializes a new instance of the IPPacket class.

Declaration

protected IPPacket(ushort dataLength, byte protocol, Address source, Address dest, byte Flags, MACAddress broadcast)

Parameters

Type	Name	Description
System.UInt16	dataLength	Data length.
System.Byte	protocol	Protocol.
Address	source	Source address.
Address	dest	Destionation address.
System.Byte	Flags	Flags.
MACAddress	broadcast	Mac address

Fields

ipHeaderLength

Declaration

protected byte ipHeaderLength

Field Value

Type	Description
System.Byte

Properties

NextIPFragmentID

Gets the next IP fragment ID.

Declaration

public static ushort NextIPFragmentID { get; }

Property Value

Type	Description
System.UInt16

Methods

CalcIPCRC(UInt16)

Calculates the CRC of the packet.

Declaration

protected ushort CalcIPCRC(ushort headerLength)

Parameters

Type	Name	Description
System.UInt16	headerLength	The length of the header, in bytes.

Returns

Type	Description
System.UInt16

CalcOcCRC(Byte[], UInt16, Int32)

Calculates the CRC of the packet.

Declaration

protected static ushort CalcOcCRC(byte[] buffer, ushort offset, int length)

Parameters

Type	Name	Description
System.Byte[]	buffer	The buffer to use.
System.UInt16	offset	The offset, in bytes.
System.Int32	length	The length, in bytes.

Returns

Type	Description
System.UInt16

CalcOcCRC(UInt16, UInt16)

Calculates the CRC of the packet.

Declaration

protected ushort CalcOcCRC(ushort offset, ushort length)

Parameters

Type	Name	Description
System.UInt16	offset	The offset, in bytes.
System.UInt16	length	The length, in bytes.

Returns

Type	Description
System.UInt16

InitializeFields()

Initializes all internal fields.

Declaration

protected override void InitializeFields()

Overrides

EthernetPacket.InitializeFields()

Exceptions

Type	Condition
System.ArgumentException	Thrown if RawData is invalid or null.

SumShortValues(Byte[], Int32, Int32)

Declaration

protected static ushort SumShortValues(byte[] buffer, int offset, int length)

Parameters

Type	Name	Description
System.Byte[]	buffer
System.Int32	offset
System.Int32	length

Returns

Type	Description
System.UInt16

ToString()

Declaration

public override string ToString()

Returns

Type	Description
System.String

Overrides

EthernetPacket.ToString()