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/*
* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package org.openeuler.sun.security.ssl;
import java.io.IOException;
import java.nio.ByteBuffer;
import org.openeuler.sun.security.ssl.SSLHandshake.HandshakeMessage;
/**
* Pack of the HelloRequest handshake message.
*/
final class HelloRequest {
static final SSLProducer kickstartProducer =
new HelloRequestKickstartProducer();
static final SSLConsumer handshakeConsumer =
new HelloRequestConsumer();
static final HandshakeProducer handshakeProducer =
new HelloRequestProducer();
/**
* The HelloRequest handshake message.
*
* [RFC 5246] The HelloRequest message MAY be sent by the server at any
* time. HelloRequest is a simple notification that the client should
* begin the negotiation process anew.
*
* struct { } HelloRequest;
*/
static final class HelloRequestMessage extends HandshakeMessage {
HelloRequestMessage(HandshakeContext handshakeContext) {
super(handshakeContext);
}
HelloRequestMessage(HandshakeContext handshakeContext,
ByteBuffer m) throws IOException {
super(handshakeContext);
if (m.hasRemaining()) {
throw handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER,
"Error parsing HelloRequest message: not empty");
}
}
@Override
public SSLHandshake handshakeType() {
return SSLHandshake.HELLO_REQUEST;
}
@Override
public int messageLength() {
return 0;
}
@Override
public void send(HandshakeOutStream s) throws IOException {
// empty, nothing to send
}
@Override
public String toString() {
return "";
}
}
/**
* The "HelloRequest" handshake message kick start producer.
*/
private static final
class HelloRequestKickstartProducer implements SSLProducer {
// Prevent instantiation of this class.
private HelloRequestKickstartProducer() {
// blank
}
@Override
public byte[] produce(ConnectionContext context) throws IOException {
// The producing happens in server side only.
ServerHandshakeContext shc = (ServerHandshakeContext)context;
HelloRequestMessage hrm = new HelloRequestMessage(shc);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine("Produced HelloRequest handshake message", hrm);
}
// Output the handshake message.
hrm.write(shc.handshakeOutput);
shc.handshakeOutput.flush();
// update the context
// What's the expected response?
shc.handshakeConsumers.put(
SSLHandshake.CLIENT_HELLO.id, SSLHandshake.CLIENT_HELLO);
// The handshake message has been delivered.
return null;
}
}
/**
* The "HelloRequest" handshake message producer.
*/
private static final class HelloRequestProducer
implements HandshakeProducer {
// Prevent instantiation of this class.
private HelloRequestProducer() {
// blank
}
@Override
public byte[] produce(ConnectionContext context,
HandshakeMessage message) throws IOException {
// The producing happens in server side only.
ServerHandshakeContext shc = (ServerHandshakeContext)context;
HelloRequestMessage hrm = new HelloRequestMessage(shc);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine("Produced HelloRequest handshake message", hrm);
}
// Output the handshake message.
hrm.write(shc.handshakeOutput);
shc.handshakeOutput.flush();
// update the context
// What's the expected response?
shc.handshakeConsumers.put(
SSLHandshake.CLIENT_HELLO.id, SSLHandshake.CLIENT_HELLO);
// The handshake message has been delivered.
return null;
}
}
/**
* The "HelloRequest" handshake message consumer.
*/
private static final class HelloRequestConsumer
implements SSLConsumer {
// Prevent instantiation of this class.
private HelloRequestConsumer() {
// blank
}
@Override
public void consume(ConnectionContext context,
ByteBuffer message) throws IOException {
// The consuming happens in client side only.
ClientHandshakeContext chc = (ClientHandshakeContext)context;
// For TLS 1.2 and prior versions, the HelloRequest message MAY
// be sent by the server at any time. Please don't clean up this
// handshake consumer.
HelloRequestMessage hrm = new HelloRequestMessage(chc, message);
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Consuming HelloRequest handshake message", hrm);
}
if (!chc.kickstartMessageDelivered) {
if (!chc.conContext.secureRenegotiation &&
!HandshakeContext.allowUnsafeRenegotiation) {
throw chc.conContext.fatal(Alert.HANDSHAKE_FAILURE,
"Unsafe renegotiation is not allowed");
}
if (!chc.conContext.secureRenegotiation) {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.warning(
"Continue with insecure renegotiation");
}
}
// update the responders
chc.handshakeProducers.put(
SSLHandshake.CLIENT_HELLO.id,
SSLHandshake.CLIENT_HELLO);
//
// produce response handshake message
//
SSLHandshake.CLIENT_HELLO.produce(context, hrm);
} else {
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) {
SSLLogger.fine(
"Ingore HelloRequest, handshaking is in progress");
}
}
}
}
}
