org.eclipse.californium.scandium.dtls

Class MaxFragmentLengthExtension

java.lang.Object

org.eclipse.californium.scandium.dtls.HelloExtension

org.eclipse.californium.scandium.dtls.MaxFragmentLengthExtension

public class MaxFragmentLengthExtension
extends HelloExtension

An object representation of the MaxFragmentLength extension for the Transport Level Security protocol.

Instances of this class can be serialized to and deserialized from the MaxFragmentLength data structure defined in RFC 6066, Section 4.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MaxFragmentLengthExtension.Length The codes representing the lengths that can be negotiated using the Max Fragment Length Hello extension.

Nested classes/interfaces inherited from class org.eclipse.californium.scandium.dtls.HelloExtension

HelloExtension.ExtensionType

Field Summary

Fields

Modifier and Type	Field and Description
static int	CODE_BITS

Fields inherited from class org.eclipse.californium.scandium.dtls.HelloExtension

LENGTH_BITS, TYPE_BITS

Constructor Summary

Constructors

Constructor and Description
MaxFragmentLengthExtension(int fragmentLengthCode)
MaxFragmentLengthExtension(MaxFragmentLengthExtension.Length fragmentLength)

Method Summary

Methods

Modifier and Type	Method and Description
protected void	addExtensionData(org.eclipse.californium.elements.util.DatagramWriter writer) Adds binary encoding of this extension's data.
MaxFragmentLengthExtension.Length	getFragmentLength()
int	getLength() Gets the overall length of this extension's corresponding Extension struct.
String	toString()

Methods inherited from class org.eclipse.californium.scandium.dtls.HelloExtension

fromExtensionDataReader, toByteArray

Methods inherited from class java.lang.Object

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

Field Detail

CODE_BITS

public static final int CODE_BITS

See Also:

Constant Field Values

Constructor Detail

MaxFragmentLengthExtension

public MaxFragmentLengthExtension(int fragmentLengthCode)

MaxFragmentLengthExtension

public MaxFragmentLengthExtension(MaxFragmentLengthExtension.Length fragmentLength)

Method Detail

getFragmentLength

public MaxFragmentLengthExtension.Length getFragmentLength()

getLength

public int getLength()

Description copied from class: HelloExtension

Gets the overall length of this extension's corresponding Extension struct.

Note that this includes the 2 bytes indicating the extension type.

Specified by:

getLength in class HelloExtension

Returns:

the length in bytes

addExtensionData

protected void addExtensionData(org.eclipse.californium.elements.util.DatagramWriter writer)

Description copied from class: HelloExtension

Adds binary encoding of this extension's data.

This implementation does not do anything. Sub-classes should override this method and use the passed-in writer to add their extension_data bytes to the Extension data structure.

NB: Subclasses MUST NOT write the extension's type code to the writer as this will already have been done by the HelloExtension.toByteArray() method.

Specified by:

addExtensionData in class HelloExtension

Parameters:

writer - the writer to use for serialization

toString

public String toString()

Overrides:

toString in class HelloExtension