author | redestad |
Thu, 13 Dec 2018 15:31:05 +0100 | |
changeset 53018 | 8bf9268df0e2 |
parent 52170 | 2990f1e1c325 |
child 53064 | 103ed9569fc8 |
permissions | -rw-r--r-- |
50768 | 1 |
/* |
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* Copyright (c) 2015, 2018, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.security.ssl; |
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27 |
||
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import java.io.IOException; |
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29 |
import java.nio.ByteBuffer; |
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30 |
import java.security.SecureRandom; |
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31 |
import java.security.cert.X509Certificate; |
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import java.text.MessageFormat; |
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import java.util.Arrays; |
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import java.util.Collections; |
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import java.util.LinkedList; |
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import java.util.List; |
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import java.util.Locale; |
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52170 | 38 |
import java.util.Objects; |
50768 | 39 |
import javax.net.ssl.SSLException; |
40 |
import javax.net.ssl.SSLHandshakeException; |
|
41 |
import javax.net.ssl.SSLPeerUnverifiedException; |
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42 |
import javax.net.ssl.SSLProtocolException; |
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43 |
import static sun.security.ssl.ClientAuthType.CLIENT_AUTH_REQUIRED; |
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44 |
import sun.security.ssl.SSLHandshake.HandshakeMessage; |
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45 |
import sun.security.ssl.SupportedVersionsExtension.CHSupportedVersionsSpec; |
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46 |
||
47 |
/** |
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48 |
* Pack of the ClientHello handshake message. |
|
49 |
*/ |
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50 |
final class ClientHello { |
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51 |
static final SSLProducer kickstartProducer = |
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new ClientHelloKickstartProducer(); |
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static final SSLConsumer handshakeConsumer = |
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54 |
new ClientHelloConsumer(); |
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static final HandshakeProducer handshakeProducer = |
|
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new ClientHelloProducer(); |
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57 |
||
58 |
private static final HandshakeConsumer t12HandshakeConsumer = |
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59 |
new T12ClientHelloConsumer(); |
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60 |
private static final HandshakeConsumer t13HandshakeConsumer = |
|
61 |
new T13ClientHelloConsumer(); |
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62 |
private static final HandshakeConsumer d12HandshakeConsumer = |
|
63 |
new D12ClientHelloConsumer(); |
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64 |
private static final HandshakeConsumer d13HandshakeConsumer = |
|
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new D13ClientHelloConsumer(); |
|
66 |
||
67 |
/** |
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68 |
* The ClientHello handshake message. |
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* |
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* See RFC 5264/4346/2246/6347 for the specifications. |
|
71 |
*/ |
|
72 |
static final class ClientHelloMessage extends HandshakeMessage { |
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73 |
private final boolean isDTLS; |
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74 |
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75 |
final int clientVersion; |
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final RandomCookie clientRandom; |
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final SessionId sessionId; |
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private byte[] cookie; // DTLS only |
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final int[] cipherSuiteIds; |
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final List<CipherSuite> cipherSuites; // known cipher suites only |
|
81 |
final byte[] compressionMethod; |
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82 |
final SSLExtensions extensions; |
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83 |
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84 |
private static final byte[] NULL_COMPRESSION = new byte[] {0}; |
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85 |
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86 |
ClientHelloMessage(HandshakeContext handshakeContext, |
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87 |
int clientVersion, SessionId sessionId, |
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88 |
List<CipherSuite> cipherSuites, SecureRandom generator) { |
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super(handshakeContext); |
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90 |
this.isDTLS = handshakeContext.sslContext.isDTLS(); |
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91 |
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92 |
this.clientVersion = clientVersion; |
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this.clientRandom = new RandomCookie(generator); |
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this.sessionId = sessionId; |
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if (isDTLS) { |
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this.cookie = new byte[0]; |
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} else { |
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this.cookie = null; |
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} |
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100 |
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101 |
this.cipherSuites = cipherSuites; |
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this.cipherSuiteIds = getCipherSuiteIds(cipherSuites); |
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this.extensions = new SSLExtensions(this); |
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104 |
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105 |
// Don't support compression. |
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106 |
this.compressionMethod = NULL_COMPRESSION; |
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} |
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108 |
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109 |
/* Read up to the binders in the PSK extension. After this method |
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110 |
* returns, the ByteBuffer position will be at end of the message |
|
111 |
* fragment that should be hashed to produce the PSK binder values. |
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* The client of this method can use this position to determine the |
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* message fragment and produce the binder values. |
|
114 |
*/ |
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115 |
static void readPartial(TransportContext tc, |
|
116 |
ByteBuffer m) throws IOException { |
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117 |
boolean isDTLS = tc.sslContext.isDTLS(); |
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118 |
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119 |
// version |
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120 |
Record.getInt16(m); |
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121 |
||
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new RandomCookie(m); |
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123 |
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// session ID |
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125 |
Record.getBytes8(m); |
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126 |
||
127 |
// DTLS cookie |
|
128 |
if (isDTLS) { |
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129 |
Record.getBytes8(m); |
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130 |
} |
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131 |
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132 |
// cipher suite IDs |
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133 |
Record.getBytes16(m); |
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134 |
// compression method |
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135 |
Record.getBytes8(m); |
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136 |
// read extensions, if present |
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137 |
if (m.remaining() >= 2) { |
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138 |
int remaining = Record.getInt16(m); |
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139 |
while (remaining > 0) { |
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140 |
int id = Record.getInt16(m); |
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141 |
int extLen = Record.getInt16(m); |
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142 |
remaining -= extLen + 4; |
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143 |
||
144 |
if (id == SSLExtension.CH_PRE_SHARED_KEY.id) { |
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// ensure pre_shared_key is the last extension |
|
146 |
if (remaining > 0) { |
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147 |
tc.fatal(Alert.ILLEGAL_PARAMETER, |
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148 |
"pre_shared_key extension is not last"); |
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} |
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// read only up to the IDs |
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Record.getBytes16(m); |
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return; |
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} else { |
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m.position(m.position() + extLen); |
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155 |
||
156 |
} |
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157 |
} |
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} // Otherwise, ignore the remaining bytes. |
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159 |
} |
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160 |
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161 |
ClientHelloMessage(HandshakeContext handshakeContext, ByteBuffer m, |
|
162 |
SSLExtension[] supportedExtensions) throws IOException { |
|
163 |
super(handshakeContext); |
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164 |
this.isDTLS = handshakeContext.sslContext.isDTLS(); |
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165 |
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166 |
this.clientVersion = ((m.get() & 0xFF) << 8) | (m.get() & 0xFF); |
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167 |
this.clientRandom = new RandomCookie(m); |
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168 |
this.sessionId = new SessionId(Record.getBytes8(m)); |
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169 |
try { |
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sessionId.checkLength(clientVersion); |
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171 |
} catch (SSLProtocolException ex) { |
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handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER, ex); |
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173 |
} |
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174 |
if (isDTLS) { |
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this.cookie = Record.getBytes8(m); |
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} else { |
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this.cookie = null; |
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} |
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180 |
byte[] encodedIds = Record.getBytes16(m); |
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if (encodedIds.length == 0 || (encodedIds.length & 0x01) != 0) { |
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handshakeContext.conContext.fatal(Alert.ILLEGAL_PARAMETER, |
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"Invalid ClientHello message"); |
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} |
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186 |
this.cipherSuiteIds = new int[encodedIds.length >> 1]; |
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for (int i = 0, j = 0; i < encodedIds.length; i++, j++) { |
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188 |
cipherSuiteIds[j] = |
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189 |
((encodedIds[i++] & 0xFF) << 8) | (encodedIds[i] & 0xFF); |
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190 |
} |
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this.cipherSuites = getCipherSuites(cipherSuiteIds); |
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this.compressionMethod = Record.getBytes8(m); |
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// In TLS 1.3, use of certain extensions is mandatory. |
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195 |
if (m.hasRemaining()) { |
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this.extensions = |
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new SSLExtensions(this, m, supportedExtensions); |
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198 |
} else { |
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199 |
this.extensions = new SSLExtensions(this); |
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200 |
} |
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201 |
} |
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202 |
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203 |
void setHelloCookie(byte[] cookie) { |
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204 |
this.cookie = cookie; |
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205 |
} |
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206 |
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207 |
// DTLS 1.0/1.2, for cookie generation. |
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208 |
byte[] getHelloCookieBytes() { |
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209 |
HandshakeOutStream hos = new HandshakeOutStream(null); |
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210 |
try { |
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211 |
// copied from send() method |
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hos.putInt8((byte)((clientVersion >>> 8) & 0xFF)); |
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213 |
hos.putInt8((byte)(clientVersion & 0xFF)); |
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hos.write(clientRandom.randomBytes, 0, 32); |
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215 |
hos.putBytes8(sessionId.getId()); |
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216 |
// ignore cookie |
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217 |
hos.putBytes16(getEncodedCipherSuites()); |
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218 |
hos.putBytes8(compressionMethod); |
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219 |
extensions.send(hos); // In TLS 1.3, use of certain |
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// extensions is mandatory. |
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} catch (IOException ioe) { |
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// unlikely |
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223 |
} |
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224 |
||
225 |
return hos.toByteArray(); |
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226 |
} |
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227 |
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228 |
// (D)TLS 1.3, for cookie generation. |
|
229 |
byte[] getHeaderBytes() { |
|
230 |
HandshakeOutStream hos = new HandshakeOutStream(null); |
|
231 |
try { |
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232 |
// copied from send() method |
|
233 |
hos.putInt8((byte)((clientVersion >>> 8) & 0xFF)); |
|
234 |
hos.putInt8((byte)(clientVersion & 0xFF)); |
|
235 |
hos.write(clientRandom.randomBytes, 0, 32); |
|
236 |
hos.putBytes8(sessionId.getId()); |
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237 |
hos.putBytes16(getEncodedCipherSuites()); |
|
238 |
hos.putBytes8(compressionMethod); |
|
239 |
} catch (IOException ioe) { |
|
240 |
// unlikely |
|
241 |
} |
|
242 |
||
243 |
return hos.toByteArray(); |
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244 |
} |
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245 |
||
246 |
private static int[] getCipherSuiteIds( |
|
247 |
List<CipherSuite> cipherSuites) { |
|
248 |
if (cipherSuites != null) { |
|
249 |
int[] ids = new int[cipherSuites.size()]; |
|
250 |
int i = 0; |
|
251 |
for (CipherSuite cipherSuite : cipherSuites) { |
|
252 |
ids[i++] = cipherSuite.id; |
|
253 |
} |
|
254 |
||
255 |
return ids; |
|
256 |
} |
|
257 |
||
258 |
return new int[0]; |
|
259 |
} |
|
260 |
||
261 |
private static List<CipherSuite> getCipherSuites(int[] ids) { |
|
262 |
List<CipherSuite> cipherSuites = new LinkedList<>(); |
|
263 |
for (int id : ids) { |
|
264 |
CipherSuite cipherSuite = CipherSuite.valueOf(id); |
|
265 |
if (cipherSuite != null) { |
|
266 |
cipherSuites.add(cipherSuite); |
|
267 |
} |
|
268 |
} |
|
269 |
||
270 |
return Collections.unmodifiableList(cipherSuites); |
|
271 |
} |
|
272 |
||
273 |
private List<String> getCipherSuiteNames() { |
|
274 |
List<String> names = new LinkedList<>(); |
|
275 |
for (int id : cipherSuiteIds) { |
|
276 |
names.add(CipherSuite.nameOf(id) + |
|
277 |
"(" + Utilities.byte16HexString(id) + ")"); } |
|
278 |
||
279 |
return names; |
|
280 |
} |
|
281 |
||
282 |
private byte[] getEncodedCipherSuites() { |
|
283 |
byte[] encoded = new byte[cipherSuiteIds.length << 1]; |
|
284 |
int i = 0; |
|
285 |
for (int id : cipherSuiteIds) { |
|
286 |
encoded[i++] = (byte)(id >> 8); |
|
287 |
encoded[i++] = (byte)id; |
|
288 |
} |
|
289 |
return encoded; |
|
290 |
} |
|
291 |
||
292 |
@Override |
|
293 |
public SSLHandshake handshakeType() { |
|
294 |
return SSLHandshake.CLIENT_HELLO; |
|
295 |
} |
|
296 |
||
297 |
@Override |
|
298 |
public int messageLength() { |
|
299 |
/* |
|
300 |
* Add fixed size parts of each field... |
|
301 |
* version + random + session + cipher + compress |
|
302 |
*/ |
|
303 |
return (2 + 32 + 1 + 2 + 1 |
|
304 |
+ sessionId.length() /* ... + variable parts */ |
|
305 |
+ (isDTLS ? (1 + cookie.length) : 0) |
|
306 |
+ (cipherSuiteIds.length * 2) |
|
307 |
+ compressionMethod.length) |
|
308 |
+ extensions.length(); // In TLS 1.3, use of certain |
|
309 |
// extensions is mandatory. |
|
310 |
} |
|
311 |
||
312 |
@Override |
|
313 |
public void send(HandshakeOutStream hos) throws IOException { |
|
314 |
sendCore(hos); |
|
315 |
extensions.send(hos); // In TLS 1.3, use of certain |
|
316 |
// extensions is mandatory. |
|
317 |
} |
|
318 |
||
319 |
void sendCore(HandshakeOutStream hos) throws IOException { |
|
320 |
hos.putInt8((byte) (clientVersion >>> 8)); |
|
321 |
hos.putInt8((byte) clientVersion); |
|
322 |
hos.write(clientRandom.randomBytes, 0, 32); |
|
323 |
hos.putBytes8(sessionId.getId()); |
|
324 |
if (isDTLS) { |
|
325 |
hos.putBytes8(cookie); |
|
326 |
} |
|
327 |
hos.putBytes16(getEncodedCipherSuites()); |
|
328 |
hos.putBytes8(compressionMethod); |
|
329 |
} |
|
330 |
||
331 |
@Override |
|
332 |
public String toString() { |
|
333 |
if (isDTLS) { |
|
334 |
MessageFormat messageFormat = new MessageFormat( |
|
335 |
"\"ClientHello\": '{'\n" + |
|
336 |
" \"client version\" : \"{0}\",\n" + |
|
337 |
" \"random\" : \"{1}\",\n" + |
|
338 |
" \"session id\" : \"{2}\",\n" + |
|
339 |
" \"cookie\" : \"{3}\",\n" + |
|
340 |
" \"cipher suites\" : \"{4}\",\n" + |
|
341 |
" \"compression methods\" : \"{5}\",\n" + |
|
342 |
" \"extensions\" : [\n" + |
|
343 |
"{6}\n" + |
|
344 |
" ]\n" + |
|
345 |
"'}'", |
|
346 |
Locale.ENGLISH); |
|
347 |
Object[] messageFields = { |
|
348 |
ProtocolVersion.nameOf(clientVersion), |
|
349 |
Utilities.toHexString(clientRandom.randomBytes), |
|
350 |
sessionId.toString(), |
|
351 |
Utilities.toHexString(cookie), |
|
352 |
getCipherSuiteNames().toString(), |
|
353 |
Utilities.toHexString(compressionMethod), |
|
354 |
Utilities.indent(Utilities.indent(extensions.toString())) |
|
355 |
}; |
|
356 |
||
357 |
return messageFormat.format(messageFields); |
|
358 |
} else { |
|
359 |
MessageFormat messageFormat = new MessageFormat( |
|
360 |
"\"ClientHello\": '{'\n" + |
|
361 |
" \"client version\" : \"{0}\",\n" + |
|
362 |
" \"random\" : \"{1}\",\n" + |
|
363 |
" \"session id\" : \"{2}\",\n" + |
|
364 |
" \"cipher suites\" : \"{3}\",\n" + |
|
365 |
" \"compression methods\" : \"{4}\",\n" + |
|
366 |
" \"extensions\" : [\n" + |
|
367 |
"{5}\n" + |
|
368 |
" ]\n" + |
|
369 |
"'}'", |
|
370 |
Locale.ENGLISH); |
|
371 |
Object[] messageFields = { |
|
372 |
ProtocolVersion.nameOf(clientVersion), |
|
373 |
Utilities.toHexString(clientRandom.randomBytes), |
|
374 |
sessionId.toString(), |
|
375 |
getCipherSuiteNames().toString(), |
|
376 |
Utilities.toHexString(compressionMethod), |
|
377 |
Utilities.indent(Utilities.indent(extensions.toString())) |
|
378 |
}; |
|
379 |
||
380 |
return messageFormat.format(messageFields); |
|
381 |
} |
|
382 |
} |
|
383 |
} |
|
384 |
||
385 |
/** |
|
386 |
* The "ClientHello" handshake message kick start producer. |
|
387 |
*/ |
|
388 |
private static final |
|
389 |
class ClientHelloKickstartProducer implements SSLProducer { |
|
390 |
// Prevent instantiation of this class. |
|
391 |
private ClientHelloKickstartProducer() { |
|
392 |
// blank |
|
393 |
} |
|
394 |
||
395 |
// Produce kickstart handshake message. |
|
396 |
@Override |
|
397 |
public byte[] produce(ConnectionContext context) throws IOException { |
|
398 |
// The producing happens in client side only. |
|
399 |
ClientHandshakeContext chc = (ClientHandshakeContext)context; |
|
400 |
||
401 |
// clean up this producer |
|
402 |
chc.handshakeProducers.remove(SSLHandshake.CLIENT_HELLO.id); |
|
403 |
||
404 |
// the max protocol version this client is supporting. |
|
405 |
ProtocolVersion maxProtocolVersion = chc.maximumActiveProtocol; |
|
406 |
||
407 |
// session ID of the ClientHello message |
|
408 |
SessionId sessionId = SSLSessionImpl.nullSession.getSessionId(); |
|
409 |
||
410 |
// a list of cipher suites sent by the client |
|
411 |
List<CipherSuite> cipherSuites = chc.activeCipherSuites; |
|
412 |
||
413 |
// |
|
414 |
// Try to resume an existing session. |
|
415 |
// |
|
416 |
SSLSessionContextImpl ssci = (SSLSessionContextImpl) |
|
417 |
chc.sslContext.engineGetClientSessionContext(); |
|
418 |
SSLSessionImpl session = ssci.get( |
|
419 |
chc.conContext.transport.getPeerHost(), |
|
420 |
chc.conContext.transport.getPeerPort()); |
|
421 |
if (session != null) { |
|
422 |
// If unsafe server certificate change is not allowed, reserve |
|
423 |
// current server certificates if the previous handshake is a |
|
424 |
// session-resumption abbreviated initial handshake. |
|
425 |
if (!ClientHandshakeContext.allowUnsafeServerCertChange && |
|
426 |
session.isSessionResumption()) { |
|
427 |
try { |
|
428 |
// If existing, peer certificate chain cannot be null. |
|
429 |
chc.reservedServerCerts = |
|
430 |
(X509Certificate[])session.getPeerCertificates(); |
|
431 |
} catch (SSLPeerUnverifiedException puve) { |
|
432 |
// Maybe not certificate-based, ignore the exception. |
|
433 |
} |
|
434 |
} |
|
435 |
||
436 |
if (!session.isRejoinable()) { |
|
437 |
session = null; |
|
438 |
if (SSLLogger.isOn && |
|
439 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
440 |
SSLLogger.finest( |
|
441 |
"Can't resume, the session is not rejoinable"); |
|
442 |
} |
|
443 |
} |
|
444 |
} |
|
445 |
||
446 |
CipherSuite sessionSuite = null; |
|
447 |
if (session != null) { |
|
448 |
sessionSuite = session.getSuite(); |
|
449 |
if (!chc.isNegotiable(sessionSuite)) { |
|
450 |
session = null; |
|
451 |
if (SSLLogger.isOn && |
|
452 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
453 |
SSLLogger.finest( |
|
454 |
"Can't resume, unavailable session cipher suite"); |
|
455 |
} |
|
456 |
} |
|
457 |
} |
|
458 |
||
459 |
ProtocolVersion sessionVersion = null; |
|
460 |
if (session != null) { |
|
461 |
sessionVersion = session.getProtocolVersion(); |
|
462 |
if (!chc.isNegotiable(sessionVersion)) { |
|
463 |
session = null; |
|
464 |
if (SSLLogger.isOn && |
|
465 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
466 |
SSLLogger.finest( |
|
467 |
"Can't resume, unavailable protocol version"); |
|
468 |
} |
|
469 |
} |
|
470 |
} |
|
471 |
||
472 |
if (session != null && |
|
473 |
!sessionVersion.useTLS13PlusSpec() && |
|
474 |
SSLConfiguration.useExtendedMasterSecret) { |
|
475 |
||
476 |
boolean isEmsAvailable = chc.sslConfig.isAvailable( |
|
477 |
SSLExtension.CH_EXTENDED_MASTER_SECRET, sessionVersion); |
|
478 |
if (isEmsAvailable && !session.useExtendedMasterSecret && |
|
479 |
!SSLConfiguration.allowLegacyResumption) { |
|
480 |
// perform full handshake instead |
|
481 |
// |
|
482 |
// The client SHOULD NOT offer an abbreviated handshake |
|
483 |
// to resume a session that does not use an extended |
|
484 |
// master secret. Instead, it SHOULD offer a full |
|
485 |
// handshake. |
|
486 |
session = null; |
|
487 |
} |
|
488 |
||
489 |
if ((session != null) && |
|
490 |
!ClientHandshakeContext.allowUnsafeServerCertChange) { |
|
491 |
// It is fine to move on with abbreviate handshake if |
|
492 |
// endpoint identification is enabled. |
|
493 |
String identityAlg = chc.sslConfig.identificationProtocol; |
|
53018
8bf9268df0e2
8215281: Use String.isEmpty() when applicable in java.base
redestad
parents:
52170
diff
changeset
|
494 |
if (identityAlg == null || identityAlg.isEmpty()) { |
50768 | 495 |
if (isEmsAvailable) { |
496 |
if (!session.useExtendedMasterSecret) { |
|
497 |
// perform full handshake instead |
|
498 |
session = null; |
|
499 |
} // Otherwise, use extended master secret. |
|
500 |
} else { |
|
501 |
// The extended master secret extension does not |
|
502 |
// apply to SSL 3.0. Perform a full handshake |
|
503 |
// instead. |
|
504 |
// |
|
505 |
// Note that the useExtendedMasterSecret is |
|
506 |
// extended to protect SSL 3.0 connections, |
|
507 |
// by discarding abbreviate handshake. |
|
508 |
session = null; |
|
509 |
} |
|
510 |
} |
|
511 |
} |
|
512 |
} |
|
513 |
||
52170 | 514 |
// ensure that the endpoint identification algorithm matches the |
515 |
// one in the session |
|
516 |
String identityAlg = chc.sslConfig.identificationProtocol; |
|
517 |
if (session != null && identityAlg != null) { |
|
518 |
String sessionIdentityAlg = |
|
519 |
session.getIdentificationProtocol(); |
|
520 |
if (!Objects.equals(identityAlg, sessionIdentityAlg)) { |
|
521 |
if (SSLLogger.isOn && |
|
522 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
523 |
SSLLogger.finest("Can't resume, endpoint id" + |
|
524 |
" algorithm does not match, requested: " + |
|
525 |
identityAlg + ", cached: " + sessionIdentityAlg); |
|
526 |
} |
|
527 |
session = null; |
|
528 |
} |
|
529 |
} |
|
530 |
||
50768 | 531 |
if (session != null) { |
532 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake,verbose")) { |
|
533 |
SSLLogger.finest("Try resuming session", session); |
|
534 |
} |
|
535 |
||
536 |
// only set session id if session is 1.2 or earlier |
|
537 |
if (!session.getProtocolVersion().useTLS13PlusSpec()) { |
|
538 |
sessionId = session.getSessionId(); |
|
539 |
} |
|
540 |
if (!maxProtocolVersion.equals(sessionVersion)) { |
|
541 |
maxProtocolVersion = sessionVersion; |
|
542 |
||
543 |
// Update protocol version number in underlying socket and |
|
544 |
// handshake output stream, so that the output records |
|
545 |
// (at the record layer) have the correct version |
|
546 |
chc.setVersion(sessionVersion); |
|
547 |
} |
|
548 |
||
549 |
// If no new session is allowed, force use of the previous |
|
550 |
// session ciphersuite, and add the renegotiation SCSV if |
|
551 |
// necessary. |
|
552 |
if (!chc.sslConfig.enableSessionCreation) { |
|
553 |
if (!chc.conContext.isNegotiated && |
|
554 |
!sessionVersion.useTLS13PlusSpec() && |
|
555 |
cipherSuites.contains( |
|
556 |
CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV)) { |
|
557 |
cipherSuites = Arrays.asList(sessionSuite, |
|
558 |
CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV); |
|
559 |
} else { // otherwise, use renegotiation_info extension |
|
560 |
cipherSuites = Arrays.asList(sessionSuite); |
|
561 |
} |
|
562 |
||
563 |
if (SSLLogger.isOn && |
|
564 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
565 |
SSLLogger.finest( |
|
566 |
"No new session is allowed, so try to resume " + |
|
567 |
"the session cipher suite only", sessionSuite); |
|
568 |
} |
|
569 |
} |
|
570 |
||
571 |
chc.isResumption = true; |
|
572 |
chc.resumingSession = session; |
|
573 |
} |
|
574 |
||
575 |
if (session == null) { |
|
576 |
if (!chc.sslConfig.enableSessionCreation) { |
|
577 |
throw new SSLHandshakeException( |
|
578 |
"No new session is allowed and " + |
|
579 |
"no existing session can be resumed"); |
|
580 |
} |
|
581 |
||
582 |
if (maxProtocolVersion.useTLS13PlusSpec() && |
|
583 |
SSLConfiguration.useCompatibilityMode) { |
|
584 |
// In compatibility mode, the TLS 1.3 legacy_session_id |
|
585 |
// field MUST be non-empty, so a client not offering a |
|
586 |
// pre-TLS 1.3 session MUST generate a new 32-byte value. |
|
587 |
sessionId = |
|
588 |
new SessionId(true, chc.sslContext.getSecureRandom()); |
|
589 |
} |
|
590 |
} |
|
591 |
||
592 |
ProtocolVersion minimumVersion = ProtocolVersion.NONE; |
|
593 |
for (ProtocolVersion pv : chc.activeProtocols) { |
|
594 |
if (minimumVersion == ProtocolVersion.NONE || |
|
595 |
pv.compare(minimumVersion) < 0) { |
|
596 |
minimumVersion = pv; |
|
597 |
} |
|
598 |
} |
|
599 |
||
600 |
// exclude SCSV for secure renegotiation |
|
601 |
if (!minimumVersion.useTLS13PlusSpec()) { |
|
602 |
if (chc.conContext.secureRenegotiation && |
|
603 |
cipherSuites.contains( |
|
604 |
CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV)) { |
|
605 |
// The cipherSuites may be unmodifiable |
|
606 |
cipherSuites = new LinkedList<>(cipherSuites); |
|
607 |
cipherSuites.remove( |
|
608 |
CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV); |
|
609 |
} |
|
610 |
} |
|
611 |
||
612 |
// make sure there is a negotiable cipher suite. |
|
613 |
boolean negotiable = false; |
|
614 |
for (CipherSuite suite : cipherSuites) { |
|
615 |
if (chc.isNegotiable(suite)) { |
|
616 |
negotiable = true; |
|
617 |
break; |
|
618 |
} |
|
619 |
} |
|
620 |
if (!negotiable) { |
|
621 |
throw new SSLHandshakeException("No negotiable cipher suite"); |
|
622 |
} |
|
623 |
||
624 |
// Create the handshake message. |
|
625 |
ProtocolVersion clientHelloVersion = maxProtocolVersion; |
|
626 |
if (clientHelloVersion.useTLS13PlusSpec()) { |
|
627 |
// In (D)TLS 1.3, the client indicates its version preferences |
|
628 |
// in the "supported_versions" extension and the client_version |
|
629 |
// (legacy_version) field MUST be set to (D)TLS 1.2. |
|
630 |
if (clientHelloVersion.isDTLS) { |
|
631 |
clientHelloVersion = ProtocolVersion.DTLS12; |
|
632 |
} else { |
|
633 |
clientHelloVersion = ProtocolVersion.TLS12; |
|
634 |
} |
|
635 |
} |
|
636 |
||
637 |
ClientHelloMessage chm = new ClientHelloMessage(chc, |
|
638 |
clientHelloVersion.id, sessionId, cipherSuites, |
|
639 |
chc.sslContext.getSecureRandom()); |
|
640 |
||
641 |
// cache the client random number for further using |
|
642 |
chc.clientHelloRandom = chm.clientRandom; |
|
643 |
chc.clientHelloVersion = clientHelloVersion.id; |
|
644 |
||
645 |
// Produce extensions for ClientHello handshake message. |
|
646 |
SSLExtension[] extTypes = chc.sslConfig.getEnabledExtensions( |
|
647 |
SSLHandshake.CLIENT_HELLO, chc.activeProtocols); |
|
648 |
chm.extensions.produce(chc, extTypes); |
|
649 |
||
650 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
651 |
SSLLogger.fine("Produced ClientHello handshake message", chm); |
|
652 |
} |
|
653 |
||
654 |
// Output the handshake message. |
|
655 |
chm.write(chc.handshakeOutput); |
|
656 |
chc.handshakeOutput.flush(); |
|
657 |
||
658 |
// Reserve the initial ClientHello message for the follow on |
|
659 |
// cookie exchange if needed. |
|
660 |
chc.initialClientHelloMsg = chm; |
|
661 |
||
662 |
// What's the expected response? |
|
663 |
chc.handshakeConsumers.put( |
|
664 |
SSLHandshake.SERVER_HELLO.id, SSLHandshake.SERVER_HELLO); |
|
665 |
if (chc.sslContext.isDTLS() && |
|
666 |
!minimumVersion.useTLS13PlusSpec()) { |
|
667 |
chc.handshakeConsumers.put( |
|
668 |
SSLHandshake.HELLO_VERIFY_REQUEST.id, |
|
669 |
SSLHandshake.HELLO_VERIFY_REQUEST); |
|
670 |
} |
|
671 |
||
672 |
// The handshake message has been delivered. |
|
673 |
return null; |
|
674 |
} |
|
675 |
} |
|
676 |
||
677 |
private static final |
|
678 |
class ClientHelloProducer implements HandshakeProducer { |
|
679 |
// Prevent instantiation of this class. |
|
680 |
private ClientHelloProducer() { |
|
681 |
// blank |
|
682 |
} |
|
683 |
||
684 |
// Response to one of the following handshake message: |
|
685 |
// HelloRequest (SSL 3.0/TLS 1.0/1.1/1.2) |
|
686 |
// ServerHello(HelloRetryRequest) (TLS 1.3) |
|
687 |
// HelloVerifyRequest (DTLS 1.0/1.2) |
|
688 |
@Override |
|
689 |
public byte[] produce(ConnectionContext context, |
|
690 |
HandshakeMessage message) throws IOException { |
|
691 |
// The producing happens in client side only. |
|
692 |
ClientHandshakeContext chc = (ClientHandshakeContext)context; |
|
693 |
||
694 |
SSLHandshake ht = message.handshakeType(); |
|
695 |
if (ht == null) { |
|
696 |
throw new UnsupportedOperationException("Not supported yet."); |
|
697 |
} |
|
698 |
||
699 |
switch (ht) { |
|
700 |
case HELLO_REQUEST: |
|
701 |
// SSL 3.0/TLS 1.0/1.1/1.2 |
|
702 |
try { |
|
703 |
chc.kickstart(); |
|
704 |
} catch (IOException ioe) { |
|
705 |
chc.conContext.fatal(Alert.HANDSHAKE_FAILURE, ioe); |
|
706 |
} |
|
707 |
||
708 |
// The handshake message has been delivered. |
|
709 |
return null; |
|
710 |
case HELLO_VERIFY_REQUEST: |
|
711 |
// DTLS 1.0/1.2 |
|
712 |
// |
|
713 |
// The HelloVerifyRequest consumer should have updated the |
|
714 |
// ClientHello handshake message with cookie. |
|
715 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
716 |
SSLLogger.fine( |
|
717 |
"Produced ClientHello(cookie) handshake message", |
|
718 |
chc.initialClientHelloMsg); |
|
719 |
} |
|
720 |
||
721 |
// Output the handshake message. |
|
722 |
chc.initialClientHelloMsg.write(chc.handshakeOutput); |
|
723 |
chc.handshakeOutput.flush(); |
|
724 |
||
725 |
// What's the expected response? |
|
726 |
chc.handshakeConsumers.put(SSLHandshake.SERVER_HELLO.id, |
|
727 |
SSLHandshake.SERVER_HELLO); |
|
728 |
||
729 |
ProtocolVersion minimumVersion = ProtocolVersion.NONE; |
|
730 |
for (ProtocolVersion pv : chc.activeProtocols) { |
|
731 |
if (minimumVersion == ProtocolVersion.NONE || |
|
732 |
pv.compare(minimumVersion) < 0) { |
|
733 |
minimumVersion = pv; |
|
734 |
} |
|
735 |
} |
|
736 |
if (chc.sslContext.isDTLS() && |
|
737 |
!minimumVersion.useTLS13PlusSpec()) { |
|
738 |
chc.handshakeConsumers.put( |
|
739 |
SSLHandshake.HELLO_VERIFY_REQUEST.id, |
|
740 |
SSLHandshake.HELLO_VERIFY_REQUEST); |
|
741 |
} |
|
742 |
||
743 |
// The handshake message has been delivered. |
|
744 |
return null; |
|
745 |
case HELLO_RETRY_REQUEST: |
|
746 |
// TLS 1.3 |
|
747 |
// The HelloRetryRequest consumer should have updated the |
|
748 |
// ClientHello handshake message with cookie. |
|
749 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
750 |
SSLLogger.fine( |
|
751 |
"Produced ClientHello(HRR) handshake message", |
|
752 |
chc.initialClientHelloMsg); |
|
753 |
} |
|
754 |
||
755 |
// Output the handshake message. |
|
756 |
chc.initialClientHelloMsg.write(chc.handshakeOutput); |
|
757 |
chc.handshakeOutput.flush(); |
|
758 |
||
759 |
// What's the expected response? |
|
760 |
chc.conContext.consumers.putIfAbsent( |
|
761 |
ContentType.CHANGE_CIPHER_SPEC.id, |
|
762 |
ChangeCipherSpec.t13Consumer); |
|
763 |
chc.handshakeConsumers.put(SSLHandshake.SERVER_HELLO.id, |
|
764 |
SSLHandshake.SERVER_HELLO); |
|
765 |
||
766 |
// The handshake message has been delivered. |
|
767 |
return null; |
|
768 |
default: |
|
769 |
throw new UnsupportedOperationException( |
|
770 |
"Not supported yet."); |
|
771 |
} |
|
772 |
} |
|
773 |
} |
|
774 |
||
775 |
/** |
|
776 |
* The "ClientHello" handshake message consumer. |
|
777 |
*/ |
|
778 |
private static final class ClientHelloConsumer implements SSLConsumer { |
|
779 |
// Prevent instantiation of this class. |
|
780 |
private ClientHelloConsumer() { |
|
781 |
// blank |
|
782 |
} |
|
783 |
||
784 |
@Override |
|
785 |
public void consume(ConnectionContext context, |
|
786 |
ByteBuffer message) throws IOException { |
|
787 |
// The consuming happens in server side only. |
|
788 |
ServerHandshakeContext shc = (ServerHandshakeContext)context; |
|
789 |
||
790 |
// clean up this consumer |
|
791 |
shc.handshakeConsumers.remove(SSLHandshake.CLIENT_HELLO.id); |
|
792 |
if (!shc.handshakeConsumers.isEmpty()) { |
|
793 |
shc.conContext.fatal(Alert.UNEXPECTED_MESSAGE, |
|
794 |
"No more handshake message allowed " + |
|
795 |
"in a ClientHello flight"); |
|
796 |
} |
|
797 |
||
798 |
// Get enabled extension types in ClientHello handshake message. |
|
799 |
SSLExtension[] enabledExtensions = |
|
800 |
shc.sslConfig.getEnabledExtensions( |
|
801 |
SSLHandshake.CLIENT_HELLO); |
|
802 |
||
803 |
ClientHelloMessage chm = |
|
804 |
new ClientHelloMessage(shc, message, enabledExtensions); |
|
805 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
806 |
SSLLogger.fine("Consuming ClientHello handshake message", chm); |
|
807 |
} |
|
808 |
||
809 |
shc.clientHelloVersion = chm.clientVersion; |
|
810 |
onClientHello(shc, chm); |
|
811 |
} |
|
812 |
||
813 |
private void onClientHello(ServerHandshakeContext context, |
|
814 |
ClientHelloMessage clientHello) throws IOException { |
|
815 |
// Negotiate protocol version. |
|
816 |
// |
|
817 |
// Check and launch SupportedVersions. |
|
818 |
SSLExtension[] extTypes = new SSLExtension[] { |
|
819 |
SSLExtension.CH_SUPPORTED_VERSIONS |
|
820 |
}; |
|
821 |
clientHello.extensions.consumeOnLoad(context, extTypes); |
|
822 |
||
823 |
ProtocolVersion negotiatedProtocol; |
|
824 |
CHSupportedVersionsSpec svs = |
|
825 |
(CHSupportedVersionsSpec)context.handshakeExtensions.get( |
|
826 |
SSLExtension.CH_SUPPORTED_VERSIONS); |
|
827 |
if (svs != null) { |
|
828 |
negotiatedProtocol = |
|
829 |
negotiateProtocol(context, svs.requestedProtocols); |
|
830 |
} else { |
|
831 |
negotiatedProtocol = |
|
832 |
negotiateProtocol(context, clientHello.clientVersion); |
|
833 |
} |
|
834 |
context.negotiatedProtocol = negotiatedProtocol; |
|
835 |
if (SSLLogger.isOn && SSLLogger.isOn("ssl,handshake")) { |
|
836 |
SSLLogger.fine( |
|
837 |
"Negotiated protocol version: " + negotiatedProtocol.name); |
|
838 |
} |
|
839 |
||
840 |
// Consume the handshake message for the specific protocol version. |
|
841 |
if (negotiatedProtocol.isDTLS) { |
|
842 |
if (negotiatedProtocol.useTLS13PlusSpec()) { |
|
843 |
d13HandshakeConsumer.consume(context, clientHello); |
|
844 |
} else { |
|
845 |
d12HandshakeConsumer.consume(context, clientHello); |
|
846 |
} |
|
847 |
} else { |
|
848 |
if (negotiatedProtocol.useTLS13PlusSpec()) { |
|
849 |
t13HandshakeConsumer.consume(context, clientHello); |
|
850 |
} else { |
|
851 |
t12HandshakeConsumer.consume(context, clientHello); |
|
852 |
} |
|
853 |
} |
|
854 |
} |
|
855 |
||
856 |
// Select a protocol version according to the |
|
857 |
// ClientHello.client_version. |
|
858 |
private ProtocolVersion negotiateProtocol( |
|
859 |
ServerHandshakeContext context, |
|
860 |
int clientHelloVersion) throws SSLException { |
|
861 |
||
862 |
// Per TLS 1.3 specification, server MUST negotiate TLS 1.2 or prior |
|
863 |
// even if ClientHello.client_version is 0x0304 or later. |
|
864 |
int chv = clientHelloVersion; |
|
865 |
if (context.sslContext.isDTLS()) { |
|
866 |
if (chv < ProtocolVersion.DTLS12.id) { |
|
867 |
chv = ProtocolVersion.DTLS12.id; |
|
868 |
} |
|
869 |
} else { |
|
870 |
if (chv > ProtocolVersion.TLS12.id) { |
|
871 |
chv = ProtocolVersion.TLS12.id; |
|
872 |
} |
|
873 |
} |
|
874 |
||
875 |
// Select a protocol version from the activated protocols. |
|
876 |
ProtocolVersion pv = ProtocolVersion.selectedFrom( |
|
877 |
context.activeProtocols, chv); |
|
878 |
if (pv == null || pv == ProtocolVersion.NONE || |
|
879 |
pv == ProtocolVersion.SSL20Hello) { |
|
880 |
context.conContext.fatal(Alert.PROTOCOL_VERSION, |
|
881 |
"Client requested protocol " + |
|
882 |
ProtocolVersion.nameOf(clientHelloVersion) + |
|
883 |
" is not enabled or supported in server context"); |
|
884 |
} |
|
885 |
||
886 |
return pv; |
|
887 |
} |
|
888 |
||
889 |
// Select a protocol version according to the |
|
890 |
// supported_versions extension. |
|
891 |
private ProtocolVersion negotiateProtocol( |
|
892 |
ServerHandshakeContext context, |
|
893 |
int[] clientSupportedVersions) throws SSLException { |
|
894 |
||
895 |
// The client supported protocol versions are present in client |
|
896 |
// preference order. This implementation chooses to use the server |
|
897 |
// preference of protocol versions instead. |
|
898 |
for (ProtocolVersion spv : context.activeProtocols) { |
|
899 |
if (spv == ProtocolVersion.SSL20Hello) { |
|
900 |
continue; |
|
901 |
} |
|
902 |
for (int cpv : clientSupportedVersions) { |
|
903 |
if (cpv == ProtocolVersion.SSL20Hello.id) { |
|
904 |
continue; |
|
905 |
} |
|
906 |
if (spv.id == cpv) { |
|
907 |
return spv; |
|
908 |
} |
|
909 |
} |
|
910 |
} |
|
911 |
||
912 |
// No protocol version can be negotiated. |
|
913 |
context.conContext.fatal(Alert.PROTOCOL_VERSION, |
|
914 |
"The client supported protocol versions " + Arrays.toString( |
|
915 |
ProtocolVersion.toStringArray(clientSupportedVersions)) + |
|
916 |
" are not accepted by server preferences " + |
|
917 |
context.activeProtocols); |
|
918 |
||
919 |
return null; // make the compiler happy |
|
920 |
} |
|
921 |
} |
|
922 |
||
923 |
/** |
|
924 |
* The "ClientHello" handshake message consumer for TLS 1.2 and |
|
925 |
* prior SSL/TLS protocol versions. |
|
926 |
*/ |
|
927 |
private static final |
|
928 |
class T12ClientHelloConsumer implements HandshakeConsumer { |
|
929 |
// Prevent instantiation of this class. |
|
930 |
private T12ClientHelloConsumer() { |
|
931 |
// blank |
|
932 |
} |
|
933 |
||
934 |
@Override |
|
935 |
public void consume(ConnectionContext context, |
|
936 |
HandshakeMessage message) throws IOException { |
|
937 |
// The consuming happens in server side only. |
|
938 |
ServerHandshakeContext shc = (ServerHandshakeContext)context; |
|
939 |
ClientHelloMessage clientHello = (ClientHelloMessage)message; |
|
940 |
||
941 |
// |
|
942 |
// validate |
|
943 |
// |
|
944 |
||
945 |
// Reject client initiated renegotiation? |
|
946 |
// |
|
947 |
// If server side should reject client-initiated renegotiation, |
|
948 |
// send an Alert.HANDSHAKE_FAILURE fatal alert, not a |
|
949 |
// no_renegotiation warning alert (no_renegotiation must be a |
|
950 |
// warning: RFC 2246). no_renegotiation might seem more |
|
951 |
// natural at first, but warnings are not appropriate because |
|
952 |
// the sending party does not know how the receiving party |
|
953 |
// will behave. This state must be treated as a fatal server |
|
954 |
// condition. |
|
955 |
// |
|
956 |
// This will not have any impact on server initiated renegotiation. |
|
957 |
if (shc.conContext.isNegotiated) { |
|
958 |
if (!shc.conContext.secureRenegotiation && |
|
959 |
!HandshakeContext.allowUnsafeRenegotiation) { |
|
960 |
shc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
|
961 |
"Unsafe renegotiation is not allowed"); |
|
962 |
} |
|
963 |
||
964 |
if (ServerHandshakeContext.rejectClientInitiatedRenego && |
|
965 |
!shc.kickstartMessageDelivered) { |
|
966 |
shc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
|
967 |
"Client initiated renegotiation is not allowed"); |
|
968 |
} |
|
969 |
} |
|
970 |
||
971 |
// Is it an abbreviated handshake? |
|
972 |
if (clientHello.sessionId.length() != 0) { |
|
973 |
SSLSessionImpl previous = ((SSLSessionContextImpl)shc.sslContext |
|
974 |
.engineGetServerSessionContext()) |
|
975 |
.get(clientHello.sessionId.getId()); |
|
976 |
||
977 |
boolean resumingSession = |
|
978 |
(previous != null) && previous.isRejoinable(); |
|
979 |
if (!resumingSession) { |
|
980 |
if (SSLLogger.isOn && |
|
981 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
982 |
SSLLogger.finest( |
|
983 |
"Can't resume, " + |
|
984 |
"the existing session is not rejoinable"); |
|
985 |
} |
|
986 |
} |
|
987 |
// Validate the negotiated protocol version. |
|
988 |
if (resumingSession) { |
|
989 |
ProtocolVersion sessionProtocol = |
|
990 |
previous.getProtocolVersion(); |
|
991 |
if (sessionProtocol != shc.negotiatedProtocol) { |
|
992 |
resumingSession = false; |
|
993 |
if (SSLLogger.isOn && |
|
994 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
995 |
SSLLogger.finest( |
|
996 |
"Can't resume, not the same protocol version"); |
|
997 |
} |
|
998 |
} |
|
999 |
} |
|
1000 |
||
1001 |
// Validate the required client authentication. |
|
1002 |
if (resumingSession && |
|
1003 |
(shc.sslConfig.clientAuthType == CLIENT_AUTH_REQUIRED)) { |
|
1004 |
try { |
|
1005 |
previous.getPeerPrincipal(); |
|
1006 |
} catch (SSLPeerUnverifiedException e) { |
|
1007 |
resumingSession = false; |
|
1008 |
if (SSLLogger.isOn && |
|
1009 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
1010 |
SSLLogger.finest( |
|
1011 |
"Can't resume, " + |
|
1012 |
"client authentication is required"); |
|
1013 |
} |
|
1014 |
} |
|
1015 |
} |
|
1016 |
||
1017 |
// Validate that the cached cipher suite. |
|
1018 |
if (resumingSession) { |
|
1019 |
CipherSuite suite = previous.getSuite(); |
|
1020 |
if ((!shc.isNegotiable(suite)) || |
|
1021 |
(!clientHello.cipherSuites.contains(suite))) { |
|
1022 |
resumingSession = false; |
|
1023 |
if (SSLLogger.isOn && |
|
1024 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
1025 |
SSLLogger.finest( |
|
1026 |
"Can't resume, " + |
|
1027 |
"the session cipher suite is absent"); |
|
1028 |
} |
|
1029 |
} |
|
1030 |
} |
|
1031 |
||
52170 | 1032 |
// ensure that the endpoint identification algorithm matches the |
1033 |
// one in the session |
|
1034 |
String identityAlg = shc.sslConfig.identificationProtocol; |
|
1035 |
if (resumingSession && identityAlg != null) { |
|
1036 |
String sessionIdentityAlg = |
|
1037 |
previous.getIdentificationProtocol(); |
|
1038 |
if (!Objects.equals(identityAlg, sessionIdentityAlg)) { |
|
1039 |
if (SSLLogger.isOn && |
|
1040 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
1041 |
SSLLogger.finest("Can't resume, endpoint id" + |
|
1042 |
" algorithm does not match, requested: " + |
|
1043 |
identityAlg + ", cached: " + sessionIdentityAlg); |
|
1044 |
} |
|
1045 |
resumingSession = false; |
|
1046 |
} |
|
1047 |
} |
|
1048 |
||
50768 | 1049 |
// So far so good. Note that the handshake extensions may reset |
1050 |
// the resuming options later. |
|
1051 |
shc.isResumption = resumingSession; |
|
1052 |
shc.resumingSession = resumingSession ? previous : null; |
|
1053 |
} |
|
1054 |
||
1055 |
// cache the client random number for further using |
|
1056 |
shc.clientHelloRandom = clientHello.clientRandom; |
|
1057 |
||
1058 |
// Check and launch ClientHello extensions. |
|
1059 |
SSLExtension[] extTypes = shc.sslConfig.getEnabledExtensions( |
|
1060 |
SSLHandshake.CLIENT_HELLO); |
|
1061 |
clientHello.extensions.consumeOnLoad(shc, extTypes); |
|
1062 |
||
1063 |
// |
|
1064 |
// update |
|
1065 |
// |
|
1066 |
if (!shc.conContext.isNegotiated) { |
|
1067 |
shc.conContext.protocolVersion = shc.negotiatedProtocol; |
|
1068 |
shc.conContext.outputRecord.setVersion(shc.negotiatedProtocol); |
|
1069 |
} |
|
1070 |
||
1071 |
// update the responders |
|
1072 |
// |
|
1073 |
// Only need to ServerHello, which may add more responders later. |
|
1074 |
// Note that ServerHello and HelloRetryRequest share the same |
|
1075 |
// handshake type/id. The ServerHello producer may be replaced |
|
1076 |
// by HelloRetryRequest producer if needed. |
|
1077 |
shc.handshakeProducers.put(SSLHandshake.SERVER_HELLO.id, |
|
1078 |
SSLHandshake.SERVER_HELLO); |
|
1079 |
||
1080 |
// |
|
1081 |
// produce |
|
1082 |
// |
|
1083 |
SSLHandshake[] probableHandshakeMessages = new SSLHandshake[] { |
|
1084 |
SSLHandshake.SERVER_HELLO, |
|
1085 |
||
1086 |
// full handshake messages |
|
1087 |
SSLHandshake.CERTIFICATE, |
|
1088 |
SSLHandshake.CERTIFICATE_STATUS, |
|
1089 |
SSLHandshake.SERVER_KEY_EXCHANGE, |
|
1090 |
SSLHandshake.CERTIFICATE_REQUEST, |
|
1091 |
SSLHandshake.SERVER_HELLO_DONE, |
|
1092 |
||
1093 |
// abbreviated handshake messages |
|
1094 |
SSLHandshake.FINISHED |
|
1095 |
}; |
|
1096 |
||
1097 |
for (SSLHandshake hs : probableHandshakeMessages) { |
|
1098 |
HandshakeProducer handshakeProducer = |
|
1099 |
shc.handshakeProducers.remove(hs.id); |
|
1100 |
if (handshakeProducer != null) { |
|
1101 |
handshakeProducer.produce(context, clientHello); |
|
1102 |
} |
|
1103 |
} |
|
1104 |
} |
|
1105 |
} |
|
1106 |
||
1107 |
/** |
|
1108 |
* The "ClientHello" handshake message consumer for TLS 1.3. |
|
1109 |
*/ |
|
1110 |
private static final |
|
1111 |
class T13ClientHelloConsumer implements HandshakeConsumer { |
|
1112 |
// Prevent instantiation of this class. |
|
1113 |
private T13ClientHelloConsumer() { |
|
1114 |
// blank |
|
1115 |
} |
|
1116 |
||
1117 |
@Override |
|
1118 |
public void consume(ConnectionContext context, |
|
1119 |
HandshakeMessage message) throws IOException { |
|
1120 |
// The consuming happens in server side only. |
|
1121 |
ServerHandshakeContext shc = (ServerHandshakeContext)context; |
|
1122 |
ClientHelloMessage clientHello = (ClientHelloMessage)message; |
|
1123 |
||
1124 |
// The client may send a dummy change_cipher_spec record |
|
1125 |
// immediately after the first ClientHello. |
|
1126 |
shc.conContext.consumers.putIfAbsent( |
|
1127 |
ContentType.CHANGE_CIPHER_SPEC.id, |
|
1128 |
ChangeCipherSpec.t13Consumer); |
|
1129 |
||
1130 |
// Is it a resumption? |
|
1131 |
// |
|
1132 |
// Check and launch the "psk_key_exchange_modes" and |
|
1133 |
// "pre_shared_key" extensions first, which will reset the |
|
1134 |
// resuming session, no matter the extensions present or not. |
|
1135 |
shc.isResumption = true; |
|
1136 |
SSLExtension[] extTypes = new SSLExtension[] { |
|
1137 |
SSLExtension.PSK_KEY_EXCHANGE_MODES, |
|
1138 |
SSLExtension.CH_PRE_SHARED_KEY |
|
1139 |
}; |
|
1140 |
clientHello.extensions.consumeOnLoad(shc, extTypes); |
|
1141 |
||
1142 |
// Check and launch ClientHello extensions other than |
|
1143 |
// "psk_key_exchange_modes", "pre_shared_key", "protocol_version" |
|
1144 |
// and "key_share" extensions. |
|
1145 |
// |
|
1146 |
// These extensions may discard session resumption, or ask for |
|
1147 |
// hello retry. |
|
1148 |
extTypes = shc.sslConfig.getExclusiveExtensions( |
|
1149 |
SSLHandshake.CLIENT_HELLO, |
|
1150 |
Arrays.asList( |
|
1151 |
SSLExtension.PSK_KEY_EXCHANGE_MODES, |
|
1152 |
SSLExtension.CH_PRE_SHARED_KEY, |
|
1153 |
SSLExtension.CH_SUPPORTED_VERSIONS)); |
|
1154 |
clientHello.extensions.consumeOnLoad(shc, extTypes); |
|
1155 |
||
1156 |
if (!shc.handshakeProducers.isEmpty()) { |
|
1157 |
// Should be HelloRetryRequest producer. |
|
1158 |
goHelloRetryRequest(shc, clientHello); |
|
1159 |
} else { |
|
1160 |
goServerHello(shc, clientHello); |
|
1161 |
} |
|
1162 |
} |
|
1163 |
||
1164 |
private void goHelloRetryRequest(ServerHandshakeContext shc, |
|
1165 |
ClientHelloMessage clientHello) throws IOException { |
|
1166 |
HandshakeProducer handshakeProducer = |
|
1167 |
shc.handshakeProducers.remove( |
|
1168 |
SSLHandshake.HELLO_RETRY_REQUEST.id); |
|
1169 |
if (handshakeProducer != null) { |
|
1170 |
handshakeProducer.produce(shc, clientHello); |
|
1171 |
} else { |
|
1172 |
// unlikely |
|
1173 |
shc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
|
1174 |
"No HelloRetryRequest producer: " + shc.handshakeProducers); |
|
1175 |
} |
|
1176 |
||
1177 |
if (!shc.handshakeProducers.isEmpty()) { |
|
1178 |
// unlikely, but please double check. |
|
1179 |
shc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
|
1180 |
"unknown handshake producers: " + shc.handshakeProducers); |
|
1181 |
} |
|
1182 |
} |
|
1183 |
||
1184 |
private void goServerHello(ServerHandshakeContext shc, |
|
1185 |
ClientHelloMessage clientHello) throws IOException { |
|
1186 |
// |
|
1187 |
// validate |
|
1188 |
// |
|
1189 |
shc.clientHelloRandom = clientHello.clientRandom; |
|
1190 |
||
1191 |
// |
|
1192 |
// update |
|
1193 |
// |
|
1194 |
if (!shc.conContext.isNegotiated) { |
|
1195 |
shc.conContext.protocolVersion = shc.negotiatedProtocol; |
|
1196 |
shc.conContext.outputRecord.setVersion(shc.negotiatedProtocol); |
|
1197 |
} |
|
1198 |
||
1199 |
// update the responders |
|
1200 |
// |
|
1201 |
// Only ServerHello/HelloRetryRequest producer, which adds |
|
1202 |
// more responders later. |
|
1203 |
shc.handshakeProducers.put(SSLHandshake.SERVER_HELLO.id, |
|
1204 |
SSLHandshake.SERVER_HELLO); |
|
1205 |
||
1206 |
SSLHandshake[] probableHandshakeMessages = new SSLHandshake[] { |
|
1207 |
SSLHandshake.SERVER_HELLO, |
|
1208 |
||
1209 |
// full handshake messages |
|
1210 |
SSLHandshake.ENCRYPTED_EXTENSIONS, |
|
1211 |
SSLHandshake.CERTIFICATE_REQUEST, |
|
1212 |
SSLHandshake.CERTIFICATE, |
|
1213 |
SSLHandshake.CERTIFICATE_VERIFY, |
|
1214 |
SSLHandshake.FINISHED |
|
1215 |
}; |
|
1216 |
||
1217 |
// |
|
1218 |
// produce |
|
1219 |
// |
|
1220 |
for (SSLHandshake hs : probableHandshakeMessages) { |
|
1221 |
HandshakeProducer handshakeProducer = |
|
1222 |
shc.handshakeProducers.remove(hs.id); |
|
1223 |
if (handshakeProducer != null) { |
|
1224 |
handshakeProducer.produce(shc, clientHello); |
|
1225 |
} |
|
1226 |
} |
|
1227 |
} |
|
1228 |
} |
|
1229 |
||
1230 |
/** |
|
1231 |
* The "ClientHello" handshake message consumer for DTLS 1.2 and |
|
1232 |
* previous DTLS protocol versions. |
|
1233 |
*/ |
|
1234 |
private static final |
|
1235 |
class D12ClientHelloConsumer implements HandshakeConsumer { |
|
1236 |
// Prevent instantiation of this class. |
|
1237 |
private D12ClientHelloConsumer() { |
|
1238 |
// blank |
|
1239 |
} |
|
1240 |
||
1241 |
@Override |
|
1242 |
public void consume(ConnectionContext context, |
|
1243 |
HandshakeMessage message) throws IOException { |
|
1244 |
// The consuming happens in server side only. |
|
1245 |
ServerHandshakeContext shc = (ServerHandshakeContext)context; |
|
1246 |
ClientHelloMessage clientHello = (ClientHelloMessage)message; |
|
1247 |
||
1248 |
// |
|
1249 |
// validate |
|
1250 |
// |
|
1251 |
||
1252 |
// Reject client initiated renegotiation? |
|
1253 |
// |
|
1254 |
// If server side should reject client-initiated renegotiation, |
|
1255 |
// send an Alert.HANDSHAKE_FAILURE fatal alert, not a |
|
1256 |
// no_renegotiation warning alert (no_renegotiation must be a |
|
1257 |
// warning: RFC 2246). no_renegotiation might seem more |
|
1258 |
// natural at first, but warnings are not appropriate because |
|
1259 |
// the sending party does not know how the receiving party |
|
1260 |
// will behave. This state must be treated as a fatal server |
|
1261 |
// condition. |
|
1262 |
// |
|
1263 |
// This will not have any impact on server initiated renegotiation. |
|
1264 |
if (shc.conContext.isNegotiated) { |
|
1265 |
if (!shc.conContext.secureRenegotiation && |
|
1266 |
!HandshakeContext.allowUnsafeRenegotiation) { |
|
1267 |
shc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
|
1268 |
"Unsafe renegotiation is not allowed"); |
|
1269 |
} |
|
1270 |
||
1271 |
if (ServerHandshakeContext.rejectClientInitiatedRenego && |
|
1272 |
!shc.kickstartMessageDelivered) { |
|
1273 |
shc.conContext.fatal(Alert.HANDSHAKE_FAILURE, |
|
1274 |
"Client initiated renegotiation is not allowed"); |
|
1275 |
} |
|
1276 |
} |
|
1277 |
||
1278 |
// Is it an abbreviated handshake? |
|
1279 |
if (clientHello.sessionId.length() != 0) { |
|
1280 |
SSLSessionImpl previous = ((SSLSessionContextImpl)shc.sslContext |
|
1281 |
.engineGetServerSessionContext()) |
|
1282 |
.get(clientHello.sessionId.getId()); |
|
1283 |
||
1284 |
boolean resumingSession = |
|
1285 |
(previous != null) && previous.isRejoinable(); |
|
1286 |
if (!resumingSession) { |
|
1287 |
if (SSLLogger.isOn && |
|
1288 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
1289 |
SSLLogger.finest( |
|
1290 |
"Can't resume, " + |
|
1291 |
"the existing session is not rejoinable"); |
|
1292 |
} |
|
1293 |
} |
|
1294 |
// Validate the negotiated protocol version. |
|
1295 |
if (resumingSession) { |
|
1296 |
ProtocolVersion sessionProtocol = |
|
1297 |
previous.getProtocolVersion(); |
|
1298 |
if (sessionProtocol != shc.negotiatedProtocol) { |
|
1299 |
resumingSession = false; |
|
1300 |
if (SSLLogger.isOn && |
|
1301 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
1302 |
SSLLogger.finest( |
|
1303 |
"Can't resume, not the same protocol version"); |
|
1304 |
} |
|
1305 |
} |
|
1306 |
} |
|
1307 |
||
1308 |
// Validate the required client authentication. |
|
1309 |
if (resumingSession && |
|
1310 |
(shc.sslConfig.clientAuthType == CLIENT_AUTH_REQUIRED)) { |
|
1311 |
||
1312 |
try { |
|
1313 |
previous.getPeerPrincipal(); |
|
1314 |
} catch (SSLPeerUnverifiedException e) { |
|
1315 |
resumingSession = false; |
|
1316 |
if (SSLLogger.isOn && |
|
1317 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
1318 |
SSLLogger.finest( |
|
1319 |
"Can't resume, " + |
|
1320 |
"client authentication is required"); |
|
1321 |
} |
|
1322 |
} |
|
1323 |
} |
|
1324 |
||
1325 |
// Validate that the cached cipher suite. |
|
1326 |
if (resumingSession) { |
|
1327 |
CipherSuite suite = previous.getSuite(); |
|
1328 |
if ((!shc.isNegotiable(suite)) || |
|
1329 |
(!clientHello.cipherSuites.contains(suite))) { |
|
1330 |
resumingSession = false; |
|
1331 |
if (SSLLogger.isOn && |
|
1332 |
SSLLogger.isOn("ssl,handshake,verbose")) { |
|
1333 |
SSLLogger.finest( |
|
1334 |
"Can't resume, " + |
|
1335 |
"the session cipher suite is absent"); |
|
1336 |
} |
|
1337 |
} |
|
1338 |
} |
|
1339 |
||
1340 |
// So far so good. Note that the handshake extensions may reset |
|
1341 |
// the resuming options later. |
|
1342 |
shc.isResumption = resumingSession; |
|
1343 |
shc.resumingSession = resumingSession ? previous : null; |
|
1344 |
} |
|
1345 |
||
1346 |
HelloCookieManager hcm = |
|
1347 |
shc.sslContext.getHelloCookieManager(ProtocolVersion.DTLS10); |
|
1348 |
if (!shc.isResumption && |
|
1349 |
!hcm.isCookieValid(shc, clientHello, clientHello.cookie)) { |
|
1350 |
// |
|
1351 |
// Perform cookie exchange for DTLS handshaking if no cookie |
|
1352 |
// or the cookie is invalid in the ClientHello message. |
|
1353 |
// |
|
1354 |
// update the responders |
|
1355 |
shc.handshakeProducers.put( |
|
1356 |
SSLHandshake.HELLO_VERIFY_REQUEST.id, |
|
1357 |
SSLHandshake.HELLO_VERIFY_REQUEST); |
|
1358 |
||
1359 |
// |
|
1360 |
// produce response handshake message |
|
1361 |
// |
|
1362 |
SSLHandshake.HELLO_VERIFY_REQUEST.produce(context, clientHello); |
|
1363 |
||
1364 |
return; |
|
1365 |
} |
|
1366 |
||
1367 |
// cache the client random number for further using |
|
1368 |
shc.clientHelloRandom = clientHello.clientRandom; |
|
1369 |
||
1370 |
// Check and launch ClientHello extensions. |
|
1371 |
SSLExtension[] extTypes = shc.sslConfig.getEnabledExtensions( |
|
1372 |
SSLHandshake.CLIENT_HELLO); |
|
1373 |
clientHello.extensions.consumeOnLoad(shc, extTypes); |
|
1374 |
||
1375 |
// |
|
1376 |
// update |
|
1377 |
// |
|
1378 |
if (!shc.conContext.isNegotiated) { |
|
1379 |
shc.conContext.protocolVersion = shc.negotiatedProtocol; |
|
1380 |
shc.conContext.outputRecord.setVersion(shc.negotiatedProtocol); |
|
1381 |
} |
|
1382 |
||
1383 |
// update the responders |
|
1384 |
// |
|
1385 |
// Only need to ServerHello, which may add more responders later. |
|
1386 |
shc.handshakeProducers.put(SSLHandshake.SERVER_HELLO.id, |
|
1387 |
SSLHandshake.SERVER_HELLO); |
|
1388 |
||
1389 |
// |
|
1390 |
// produce |
|
1391 |
// |
|
1392 |
SSLHandshake[] probableHandshakeMessages = new SSLHandshake[] { |
|
1393 |
SSLHandshake.SERVER_HELLO, |
|
1394 |
||
1395 |
// full handshake messages |
|
1396 |
SSLHandshake.CERTIFICATE, |
|
1397 |
SSLHandshake.CERTIFICATE_STATUS, |
|
1398 |
SSLHandshake.SERVER_KEY_EXCHANGE, |
|
1399 |
SSLHandshake.CERTIFICATE_REQUEST, |
|
1400 |
SSLHandshake.SERVER_HELLO_DONE, |
|
1401 |
||
1402 |
// abbreviated handshake messages |
|
1403 |
SSLHandshake.FINISHED |
|
1404 |
}; |
|
1405 |
||
1406 |
for (SSLHandshake hs : probableHandshakeMessages) { |
|
1407 |
HandshakeProducer handshakeProducer = |
|
1408 |
shc.handshakeProducers.remove(hs.id); |
|
1409 |
if (handshakeProducer != null) { |
|
1410 |
handshakeProducer.produce(context, clientHello); |
|
1411 |
} |
|
1412 |
} |
|
1413 |
} |
|
1414 |
} |
|
1415 |
||
1416 |
/** |
|
1417 |
* The "ClientHello" handshake message consumer for DTLS 1.3. |
|
1418 |
*/ |
|
1419 |
private static final |
|
1420 |
class D13ClientHelloConsumer implements HandshakeConsumer { |
|
1421 |
// Prevent instantiation of this class. |
|
1422 |
private D13ClientHelloConsumer() { |
|
1423 |
// blank |
|
1424 |
} |
|
1425 |
||
1426 |
@Override |
|
1427 |
public void consume(ConnectionContext context, |
|
1428 |
HandshakeMessage message) throws IOException { |
|
1429 |
throw new UnsupportedOperationException("Not supported yet."); |
|
1430 |
} |
|
1431 |
} |
|
1432 |
} |