author | ascarpino |
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changeset 43701 | fe8c324ba97c |
parent 25859 | 3317bb8137f4 |
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/* |
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* Copyright (c) 2006, 2012, 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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import java.io.IOException; |
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import javax.net.ssl.SSLProtocolException; |
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/* |
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* For secure renegotiation, RFC5746 defines a new TLS extension, |
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* "renegotiation_info" (with extension type 0xff01), which contains a |
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* cryptographic binding to the enclosing TLS connection (if any) for |
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* which the renegotiation is being performed. The "extension data" |
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* field of this extension contains a "RenegotiationInfo" structure: |
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* |
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* struct { |
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* opaque renegotiated_connection<0..255>; |
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* } RenegotiationInfo; |
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*/ |
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final class RenegotiationInfoExtension extends HelloExtension { |
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private final byte[] renegotiated_connection; |
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RenegotiationInfoExtension(byte[] clientVerifyData, |
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byte[] serverVerifyData) { |
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super(ExtensionType.EXT_RENEGOTIATION_INFO); |
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if (clientVerifyData.length != 0) { |
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renegotiated_connection = |
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new byte[clientVerifyData.length + serverVerifyData.length]; |
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System.arraycopy(clientVerifyData, 0, renegotiated_connection, |
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0, clientVerifyData.length); |
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if (serverVerifyData.length != 0) { |
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System.arraycopy(serverVerifyData, 0, renegotiated_connection, |
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clientVerifyData.length, serverVerifyData.length); |
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} |
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} else { |
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// ignore both the client and server verify data. |
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renegotiated_connection = new byte[0]; |
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} |
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} |
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RenegotiationInfoExtension(HandshakeInStream s, int len) |
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throws IOException { |
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super(ExtensionType.EXT_RENEGOTIATION_INFO); |
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// check the extension length |
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if (len < 1) { |
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throw new SSLProtocolException("Invalid " + type + " extension"); |
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} |
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int renegoInfoDataLen = s.getInt8(); |
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if (renegoInfoDataLen + 1 != len) { // + 1 = the byte we just read |
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throw new SSLProtocolException("Invalid " + type + " extension"); |
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} |
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renegotiated_connection = new byte[renegoInfoDataLen]; |
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if (renegoInfoDataLen != 0) { |
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s.read(renegotiated_connection, 0, renegoInfoDataLen); |
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} |
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} |
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// Length of the encoded extension, including the type and length fields |
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@Override |
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int length() { |
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return 5 + renegotiated_connection.length; |
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} |
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@Override |
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void send(HandshakeOutStream s) throws IOException { |
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s.putInt16(type.id); |
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s.putInt16(renegotiated_connection.length + 1); |
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s.putBytes8(renegotiated_connection); |
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} |
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boolean isEmpty() { |
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return renegotiated_connection.length == 0; |
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} |
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byte[] getRenegotiatedConnection() { |
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return renegotiated_connection; |
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} |
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@Override |
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public String toString() { |
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return "Extension " + type + ", renegotiated_connection: " + |
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(renegotiated_connection.length == 0 ? "<empty>" : |
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Debug.toString(renegotiated_connection)); |
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} |
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} |