net.clackrouter.packets
Class VNSARPPacket

java.lang.Object
  net.clackrouter.protocol.data.VNSData
      net.clackrouter.packets.VNSPacket
          net.clackrouter.packets.VNSARPPacket

public class VNSARPPacket
extends VNSPacket

Encapsulates Address Resolution Protocol packet.

Field Summary

static int	HLEN_LEN Length of the harware address length field, in bytes.
static int	HW_ADDR_LEN Length of the harware address field, in bytes.
static short	HW_TYPE_ETHERNET Value of the hardware type field of Ethernet.
static int	HW_TYPE_LEN Length of the harware type field, in bytes.
static int	OPERATION_LEN Length of the operation field, in bytes.
static short	OPERATION_REPLY Value of the operation fieled of ARP reply.
static short	OPERATION_REQUEST Value of the operation fieled of ARP request.
static short	OPERATION_REVERSE_REPLY Value of the operation fieled of RARP reply.
static short	OPERATION_REVERSE_REQUEST Value of the operation fieled of RARP request.
static int	PLEN_LEN Length of the protocol address length field, in bytes.
static int	PROTOCOL_ADDR_LEN Length of the protocol address field, in bytes.
static short	PROTOCOL_TYPE_IP Value of the protocol type field of IP.
static int	PROTOCOL_TYPE_LEN Length of the protocol type field, in bytes.
static int	TOTAL_LEN Total length of the ARP packet, in bytes.

Fields inherited from class net.clackrouter.packets.VNSPacket

m_inputInterfaceName, m_length, m_level2Type, m_local_packet, m_nextHopIPAddr, m_nextHopMacAddr, m_outputInterfaceName, m_packetByteBuffer, mParentHeader

Constructor Summary

VNSARPPacket(java.nio.ByteBuffer packetByteBuffer)
Constructs ARP packet from the supplied bytes.

VNSARPPacket(short hwType, short protocolType, byte hLen, byte pLen, short operation, java.nio.ByteBuffer sourceHWAddress, java.nio.ByteBuffer sourceProtocolAddress, java.nio.ByteBuffer destinationHWAddress, java.nio.ByteBuffer destinationProtocolAddress)
Creates ARP packet from the supplied parameters.

Method Summary

java.nio.ByteBuffer	getDestinationHWAddress() Returns destination hardware address.
java.nio.ByteBuffer	getDestinationProtocolAddress() Returns destination protocol address.
byte	getHWAddressLength() Returns hardware address length.
short	getHWType() Returns hardware type.
short	getOperation() Returns operation (Request, Reply, etc.)
byte	getProtocolAddressLength() Returns protocol address length.
short	getProtocolType() Returns protocol type.
java.nio.ByteBuffer	getSourceHWAddress() Returns source hardware address.
java.nio.ByteBuffer	getSourceProtocolAddress() Returns source protocol address.
java.lang.String	toString() Presents ARP packet in a readable format, by field.

Methods inherited from class net.clackrouter.packets.VNSPacket

addToPath, get16bit, get32bit, getByteBuffer, getInputInterfaceName, getLength, getLevel2Type, getNextHopIPAddress, getNextHopMacAddress, getOutputInterfaceName, getParentHeader, getStringBuffer, isPacket, needsSourceAddress, setByteBuffer, setInputInterfaceName, setLevel2Type, setNeedsSourceAddress, setNextHopIPAddress, setNextHopMacAddress, setOutputInterfaceName, setParentHeader

Methods inherited from class net.clackrouter.protocol.data.VNSData

isBanner, isClose, isHWInfo

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

HW_TYPE_LEN

public static final int HW_TYPE_LEN

Length of the harware type field, in bytes.

See Also:

Constant Field Values

PROTOCOL_TYPE_LEN

public static final int PROTOCOL_TYPE_LEN

Length of the protocol type field, in bytes.

See Also:

Constant Field Values

HLEN_LEN

public static final int HLEN_LEN

Length of the harware address length field, in bytes.

See Also:

Constant Field Values

PLEN_LEN

public static final int PLEN_LEN

Length of the protocol address length field, in bytes.

See Also:

Constant Field Values

OPERATION_LEN

public static final int OPERATION_LEN

Length of the operation field, in bytes.

See Also:

Constant Field Values

HW_ADDR_LEN

public static final int HW_ADDR_LEN

Length of the harware address field, in bytes.

See Also:

Constant Field Values

PROTOCOL_ADDR_LEN

public static final int PROTOCOL_ADDR_LEN

Length of the protocol address field, in bytes.

See Also:

Constant Field Values

TOTAL_LEN

public static final int TOTAL_LEN

Total length of the ARP packet, in bytes.

See Also:

Constant Field Values

OPERATION_REQUEST

public static final short OPERATION_REQUEST

Value of the operation fieled of ARP request.

See Also:

Constant Field Values

OPERATION_REPLY

public static final short OPERATION_REPLY

Value of the operation fieled of ARP reply.

See Also:

Constant Field Values

OPERATION_REVERSE_REQUEST

public static final short OPERATION_REVERSE_REQUEST

Value of the operation fieled of RARP request.

See Also:

Constant Field Values

OPERATION_REVERSE_REPLY

public static final short OPERATION_REVERSE_REPLY

Value of the operation fieled of RARP reply.

See Also:

Constant Field Values

HW_TYPE_ETHERNET

public static final short HW_TYPE_ETHERNET

Value of the hardware type field of Ethernet.

See Also:

Constant Field Values

PROTOCOL_TYPE_IP

public static final short PROTOCOL_TYPE_IP

Value of the protocol type field of IP.

See Also:

Constant Field Values

Constructor Detail

VNSARPPacket

public VNSARPPacket(java.nio.ByteBuffer packetByteBuffer)

Constructs ARP packet from the supplied bytes.

Parameters:

packetByteBuffer - Buffer containing packet's bytes

VNSARPPacket

public VNSARPPacket(short hwType,
                    short protocolType,
                    byte hLen,
                    byte pLen,
                    short operation,
                    java.nio.ByteBuffer sourceHWAddress,
                    java.nio.ByteBuffer sourceProtocolAddress,
                    java.nio.ByteBuffer destinationHWAddress,
                    java.nio.ByteBuffer destinationProtocolAddress)

Creates ARP packet from the supplied parameters.

Parameters:

hwType - Hardware type

protocolType - Protocol type

hLen - Hardware address length

pLen - Protocol address length

operation - Operation (e.g. Request)

sourceHWAddress - Hardware address of the source host

sourceProtocolAddress - Protocol address of the source host (e.g. IP address)

destinationHWAddress - Harware address of the destination host

destinationProtocolAddress - Protocol address of the destination host

Method Detail

toString

public java.lang.String toString()

Presents ARP packet in a readable format, by field.

Overrides:

toString in class VNSPacket

Returns:

Fields of the ARP packet

getHWType

public short getHWType()

Returns hardware type.

Returns:

Hardware type

getProtocolType

public short getProtocolType()

Returns protocol type.

Returns:

Protocol type

getHWAddressLength

public byte getHWAddressLength()

Returns hardware address length.

Returns:

Hardware address length

getProtocolAddressLength

public byte getProtocolAddressLength()

Returns protocol address length.

Returns:

Protocol address length

getOperation

public short getOperation()

Returns operation (Request, Reply, etc.)

Returns:

Operation

getSourceProtocolAddress

public java.nio.ByteBuffer getSourceProtocolAddress()

Returns source protocol address.

Returns:

Source protocol address

getDestinationProtocolAddress

public java.nio.ByteBuffer getDestinationProtocolAddress()

Returns destination protocol address.

Returns:

Destination protocol address

getSourceHWAddress

public java.nio.ByteBuffer getSourceHWAddress()

Returns source hardware address.

Returns:

Source hardware address

getDestinationHWAddress

public java.nio.ByteBuffer getDestinationHWAddress()

Returns destination hardware address.

Returns:

Destination hardware address