Top Description Fields Constructors Methods

io.undertow.server.protocol.http

pack-priv final Class ALPNOfferedClientHelloExplorer

Class Inheritance

extends Object

java.lang.Object
io.undertow.server.protocol.http.ALPNOfferedClientHelloExplorer

Imports

java.nio.BufferUnderflowException, .ByteBuffer, java.util.ArrayList, .List, javax.net.ssl.SSLException, io.undertow.UndertowMessages

Parses the client handshake to retrieve ALPN and cipher info

Field Summary

Modifier and Type	Field and Description
private static final int	RECORD_HEADER_SIZE The header size of TLS/SSL records.

Constructor Summary

Access	Constructor and Description
private	ALPNOfferedClientHelloExplorer()

Method Summary

Modifier and Type	Method and Description
private static List<Integer>	exploreExtensions(ByteBuffer input, List<Integer> ciphers)
private static List<Integer>	exploreHandshake(ByteBuffer input, byte recordMajorVersion, byte recordMinorVersion, int recordLength)
private static List<Integer>	exploreRecord(ByteBuffer input)
private static List<Integer>	exploreTLSRecord(ByteBuffer input, byte firstByte, byte secondByte, byte thirdByte)
private static int	getInt16(ByteBuffer input)
private static int	getInt24(ByteBuffer input)
private static int	getInt8(ByteBuffer input)
pack-priv static boolean	isIncompleteHeader(ByteBuffer source)
pack-priv static List<Integer>	parseClientHello(ByteBuffer source) Checks if a client handshake is offering ALPN, and if so it returns a list of all ciphers.
private static void	processByteVector(ByteBuffer input, int length)
private static void	processByteVector8(ByteBuffer input)

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

RECORD_HEADER_SIZE

back to summary

private static final int RECORD_HEADER_SIZE

The header size of TLS/SSL records.

The value of this constant is 5.

Constructor Detail

ALPNOfferedClientHelloExplorer	back to summary
private ALPNOfferedClientHelloExplorer()

Method Detail

exploreExtensions	back to summary
private static List<Integer> exploreExtensions(ByteBuffer input, List<Integer> ciphers) throws SSLException

exploreHandshake	back to summary
private static List<Integer> exploreHandshake(ByteBuffer input, byte recordMajorVersion, byte recordMinorVersion, int recordLength) throws SSLException

exploreRecord	back to summary
private static List<Integer> exploreRecord(ByteBuffer input) throws SSLException

exploreTLSRecord	back to summary
private static List<Integer> exploreTLSRecord(ByteBuffer input, byte firstByte, byte secondByte, byte thirdByte) throws SSLException

getInt16	back to summary
private static int getInt16(ByteBuffer input)

getInt24	back to summary
private static int getInt24(ByteBuffer input)

getInt8	back to summary
private static int getInt8(ByteBuffer input)

isIncompleteHeader	back to summary
pack-priv static boolean isIncompleteHeader(ByteBuffer source)

parseClientHello	back to summary
pack-priv static List<Integer> parseClientHello(ByteBuffer source) throws SSLException Checks if a client handshake is offering ALPN, and if so it returns a list of all ciphers. If ALPN is not being offered then this will return null.

processByteVector	back to summary
private static void processByteVector(ByteBuffer input, int length)

processByteVector8	back to summary
private static void processByteVector8(ByteBuffer input)