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Posted to commits@directory.apache.org by el...@apache.org on 2010/11/26 12:09:04 UTC
svn commit: r1039309 - in
/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos:
KerberosConstants.java messages/EncApRepPart.java
Author: elecharny
Date: Fri Nov 26 11:09:03 2010
New Revision: 1039309
URL: http://svn.apache.org/viewvc?rev=1039309&view=rev
Log:
Added the EncApRepPart class and added the tags in KerberosConstants
Added:
directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java
Modified:
directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java
Modified: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java?rev=1039309&r1=1039308&r2=1039309&view=diff
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java (original)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/KerberosConstants.java Fri Nov 26 11:09:03 2010
@@ -96,6 +96,13 @@ public class KerberosConstants
/** EncTgsRepPart's tags */
public static final int ENC_TGS_REP_PART_TAG = 0x7A;
+ /** EncAPRepPart's tags */
+ public static final int ENC_AP_REP_PART_TAG = 0x7B;
+ public static final int ENC_AP_REP_PART_CTIME_TAG = 0xA0;
+ public static final int ENC_AP_REP_PART_CUSEC_TAG = 0xA1;
+ public static final int ENC_AP_REP_PART_SUB_KEY_TAG = 0xA2;
+ public static final int ENC_AP_REP_PART_SEQ_NUMBER_TAG = 0xA3;
+
/** EncKrbPrivPart */
public static final int ENC_KRB_PRIV_PART_TAG = 0x7C;
public static final int ENC_KRB_PRIV_PART_USER_DATA_TAG = 0xA0;
Added: directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java
URL: http://svn.apache.org/viewvc/directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java?rev=1039309&view=auto
==============================================================================
--- directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java (added)
+++ directory/apacheds/trunk/kerberos-codec/src/main/java/org/apache/directory/shared/kerberos/messages/EncApRepPart.java Fri Nov 26 11:09:03 2010
@@ -0,0 +1,327 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements. See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership. The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied. See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ *
+ */
+package org.apache.directory.shared.kerberos.messages;
+
+import java.nio.BufferOverflowException;
+import java.nio.ByteBuffer;
+
+import org.apache.directory.server.i18n.I18n;
+import org.apache.directory.shared.asn1.ber.tlv.TLV;
+import org.apache.directory.shared.asn1.ber.tlv.UniversalTag;
+import org.apache.directory.shared.asn1.ber.tlv.Value;
+import org.apache.directory.shared.asn1.codec.EncoderException;
+import org.apache.directory.shared.kerberos.KerberosConstants;
+import org.apache.directory.shared.kerberos.KerberosMessageType;
+import org.apache.directory.shared.kerberos.KerberosTime;
+import org.apache.directory.shared.kerberos.components.EncryptionKey;
+import org.apache.directory.shared.ldap.util.StringTools;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+
+
+/**
+ * Encrypted part of the application response.
+ * It will store the object described by the ASN.1 grammar :
+ * <pre>
+ * EncAPRepPart ::= [APPLICATION 27] SEQUENCE {
+ * ctime [0] KerberosTime,
+ * cusec [1] Microseconds,
+ * subkey [2] <EncryptionKey> OPTIONAL,
+ * seq-number [3] UInt32 OPTIONAL
+ * }
+ * </pre>
+ * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
+ */
+public class EncApRepPart extends KerberosMessage
+{
+ /** The logger */
+ private static final Logger LOG = LoggerFactory.getLogger( EncApRepPart.class );
+
+ /** Speedup for logs */
+ private static final boolean IS_DEBUG = LOG.isDebugEnabled();
+
+ /** The client time */
+ private KerberosTime ctime;
+
+ /** the microsecond part of the client's timestamp */
+ private int cusec;
+
+ /** Encryption key */
+ private EncryptionKey subkey; //optional
+
+ /** Sequence number */
+ private Integer seqNumber; //optional
+
+ // Storage for computed lengths
+ private transient int ctimeLength;
+ private transient int cusecLength;
+ private transient int subKeyLength;
+ private transient int seqNumberLength;
+ private transient int encApRepPartLength;
+
+ /**
+ * Creates a new instance of EncApRepPart.
+ */
+ public EncApRepPart()
+ {
+ super( KerberosMessageType.ENC_AP_REP_PART );
+ }
+
+
+ /**
+ * Returns the client {@link KerberosTime}.
+ *
+ * @return The client {@link KerberosTime}.
+ */
+ public KerberosTime getCTime()
+ {
+ return ctime;
+ }
+
+
+ /**
+ * @param ctime the ctime to set
+ */
+ public void setCTime( KerberosTime ctime )
+ {
+ this.ctime = ctime;
+ }
+
+
+ /**
+ * @return the cusec
+ */
+ public int getCusec()
+ {
+ return cusec;
+ }
+
+
+ /**
+ * @param cusec the cusec to set
+ */
+ public void setCusec( int cusec )
+ {
+ this.cusec = cusec;
+ }
+
+
+ /**
+ * @return the subkey
+ */
+ public EncryptionKey getSubkey()
+ {
+ return subkey;
+ }
+
+
+ /**
+ * @param subkey the subkey to set
+ */
+ public void setSubkey( EncryptionKey subkey )
+ {
+ this.subkey = subkey;
+ }
+
+
+ /**
+ * @return the seqNumber
+ */
+ public Integer getSeqNumber()
+ {
+ return seqNumber;
+ }
+
+
+ /**
+ * @param seqNumber the seqNumber to set
+ */
+ public void setSeqNumber( Integer seqNumber )
+ {
+ this.seqNumber = seqNumber;
+ }
+
+
+ /**
+ * Compute the Authenticator length
+ * <pre>
+ * Authenticator :
+ *
+ * 0x7B L1 EncApRepPart [APPLICATION 27]
+ * |
+ * +--> 0xA0 11 ctime tag
+ * | |
+ * | +--> 0x18 0x0F ttt ctime (KerberosTime)
+ * |
+ * +--> 0xA1 L2 cusec tag
+ * | |
+ * | +--> 0x02 L2-1 cusec (INTEGER)
+ * |
+ * +--> 0xA2 L3 subkey (EncryptionKey)
+ * |
+ * +--> 0xA3 L4 seq-number tag
+ * |
+ * +--> 0x02 L4-1 NN seq-number (INTEGER)
+ * </pre>
+ */
+ @Override
+ public int computeLength()
+ {
+ // Compute the ctime length.
+ ctimeLength = 1 + 1 + 0x0F;
+ encApRepPartLength = 1 + TLV.getNbBytes( ctimeLength ) + ctimeLength;
+
+ // Compute the cusec length
+ cusecLength = 1 + 1 + Value.getNbBytes( cusec );
+ encApRepPartLength += 1 + TLV.getNbBytes( cusecLength ) + cusecLength;
+
+ // Compute the subkey length, if any
+ if ( subkey != null )
+ {
+ subKeyLength = subkey.computeLength();
+ encApRepPartLength += 1 + TLV.getNbBytes( subKeyLength ) + subKeyLength;
+ }
+
+ // Compute the sequence size, if any
+ if ( seqNumber != null )
+ {
+ seqNumberLength = 1 + 1 + Value.getNbBytes( seqNumber );
+ encApRepPartLength += 1 + TLV.getNbBytes( seqNumberLength ) + seqNumberLength;
+ }
+
+
+ return 1 + TLV.getNbBytes( encApRepPartLength ) + encApRepPartLength;
+ }
+
+
+ /**
+ * Encode the EncApRepPart message to a PDU.
+ * <pre>
+ * EncApRepPart :
+ *
+ * 0x7B LL
+ * 0xA0 0x11
+ * 0x18 0x0F ttt ctime
+ * 0xA1 LL
+ * 0x02 LL NN cusec
+ * [0xA2 LL
+ * 0x30 LL abcd] subkey
+ * [0xA3 LL
+ * 0x02 LL NN] seq-number
+ * </pre>
+ * @return The constructed PDU.
+ */
+ @Override
+ public ByteBuffer encode( ByteBuffer buffer ) throws EncoderException
+ {
+ if ( buffer == null )
+ {
+ buffer = ByteBuffer.allocate( computeLength() );
+ }
+
+ try
+ {
+ // The EncApRepPart APPLICATION Tag
+ buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_TAG );
+ buffer.put( TLV.getBytes( encApRepPartLength ) );
+
+ // The ctime ------------------------------------------------------
+ // The tag
+ buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_CTIME_TAG );
+ buffer.put( (byte)0x11 );
+
+ // The value
+ buffer.put( (byte)UniversalTag.GENERALIZED_TIME.getValue() );
+ buffer.put( (byte)0x0F );
+ buffer.put( ctime.getBytes() );
+
+ // The cusec ------------------------------------------------------
+ // The tag
+ buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_CUSEC_TAG );
+ buffer.put( TLV.getBytes( cusecLength ) );
+
+ // The value
+ Value.encode( buffer, cusec );
+
+ // The subkey if any ----------------------------------------------
+ if ( subkey != null )
+ {
+ // The tag
+ buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_SUB_KEY_TAG );
+ buffer.put( TLV.getBytes( subKeyLength ) );
+
+ // The value
+ subkey.encode( buffer );
+ }
+
+ // The seq-number, if any -----------------------------------------
+ // The tag
+ buffer.put( (byte)KerberosConstants.ENC_AP_REP_PART_SEQ_NUMBER_TAG );
+ buffer.put( TLV.getBytes( seqNumberLength ) );
+
+ // The value
+ Value.encode( buffer, seqNumber );
+
+ }
+ catch ( BufferOverflowException boe )
+ {
+ LOG.error( I18n.err( I18n.ERR_139, 1 + TLV.getNbBytes( encApRepPartLength )
+ + encApRepPartLength, buffer.capacity() ) );
+ throw new EncoderException( I18n.err( I18n.ERR_138 ) );
+ }
+
+ if ( IS_DEBUG )
+ {
+ LOG.debug( "EncApRepPart encoding : {}", StringTools.dumpBytes( buffer.array() ) );
+ LOG.debug( "EncApRepPart initial value : {}", toString() );
+ }
+
+ return buffer;
+ }
+
+
+
+ /**
+ * @see Object#toString()
+ */
+ public String toString()
+ {
+ StringBuilder sb = new StringBuilder();
+
+
+ sb.append( "EncApRepPart : \n" );
+
+ sb.append( " ctime : " ).append( ctime ).append( '\n' );
+ sb.append( " cusec : " ).append( cusec ).append( '\n' );
+
+ if ( subkey != null )
+ {
+ sb.append( " subkey : " ).append( subkey ).append( '\n' );
+ }
+
+ if ( seqNumber != null )
+ {
+ sb.append( " seq-number : " ).append( seqNumber ).append( '\n' );
+ }
+
+ return sb.toString();
+ }
+}