/*
* 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.codec.kdcRep;
import org.apache.directory.shared.asn1.actions.CheckNotNullLength;
import org.apache.directory.shared.asn1.ber.grammar.AbstractGrammar;
import org.apache.directory.shared.asn1.ber.grammar.Grammar;
import org.apache.directory.shared.asn1.ber.grammar.GrammarTransition;
import org.apache.directory.shared.asn1.ber.tlv.UniversalTag;
import org.apache.directory.shared.kerberos.KerberosConstants;
import org.apache.directory.shared.kerberos.codec.kdcRep.actions.AddPaData;
import org.apache.directory.shared.kerberos.codec.kdcRep.actions.CheckMsgType;
import org.apache.directory.shared.kerberos.codec.kdcRep.actions.StoreCName;
import org.apache.directory.shared.kerberos.codec.kdcRep.actions.StoreCRealm;
import org.apache.directory.shared.kerberos.codec.kdcRep.actions.StoreEncPart;
import org.apache.directory.shared.kerberos.codec.kdcRep.actions.StorePvno;
import org.apache.directory.shared.kerberos.codec.kdcRep.actions.StoreTicket;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This class implements the KdcReq structure. All the actions are declared
* in this class. As it is a singleton, these declaration are only done once. If
* an action is to be added or modified, this is where the work is to be done !
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
*/
public final class KdcRepGrammar extends AbstractGrammar<KdcRepContainer>
{
/** The logger */
static final Logger LOG = LoggerFactory.getLogger( KdcRepGrammar.class );
/** A speedup for logger */
static final boolean IS_DEBUG = LOG.isDebugEnabled();
/** The instance of grammar. KdcReqGrammar is a singleton */
private static Grammar<KdcRepContainer> instance = new KdcRepGrammar();
/**
* Creates a new KdcRepGrammar object.
*/
@SuppressWarnings("unchecked")
private KdcRepGrammar()
{
setName( KdcRepGrammar.class.getName() );
// Create the transitions table
super.transitions = new GrammarTransition[KdcRepStatesEnum.LAST_KDC_REP_STATE.ordinal()][256];
// ============================================================================================
// KdcReq
// ============================================================================================
// --------------------------------------------------------------------------------------------
// Transition from KdcRep init to KdcRep SEQ
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
super.transitions[KdcRepStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.START_STATE,
KdcRepStatesEnum.KDC_REP_SEQ_STATE,
UniversalTag.SEQUENCE,
new CheckNotNullLength<KdcRepContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from KdcRep SEQ to pvno tag
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// pvno [0]
super.transitions[KdcRepStatesEnum.KDC_REP_SEQ_STATE.ordinal()][KerberosConstants.KDC_REP_PVNO_TAG] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_SEQ_STATE,
KdcRepStatesEnum.KDC_REP_PVNO_TAG_STATE,
KerberosConstants.KDC_REP_PVNO_TAG,
new CheckNotNullLength<KdcRepContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from pvno tag to pvno value
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// pvno [0] INTEGER (5)
super.transitions[KdcRepStatesEnum.KDC_REP_PVNO_TAG_STATE.ordinal()][UniversalTag.INTEGER.getValue()] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_PVNO_TAG_STATE,
KdcRepStatesEnum.KDC_REP_PVNO_STATE,
UniversalTag.INTEGER,
new StorePvno() );
// --------------------------------------------------------------------------------------------
// Transition from pvno value to msg-type tag
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// msg-type [1]
super.transitions[KdcRepStatesEnum.KDC_REP_PVNO_STATE.ordinal()][KerberosConstants.KDC_REP_MSG_TYPE_TAG] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_PVNO_STATE,
KdcRepStatesEnum.KDC_REP_MSG_TYPE_TAG_STATE,
KerberosConstants.KDC_REP_MSG_TYPE_TAG,
new CheckNotNullLength<KdcRepContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from msg-type tag to msg-type value
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// msg-type [1] INTEGER (11 -- AS -- | 13 -- TGS --),
super.transitions[KdcRepStatesEnum.KDC_REP_MSG_TYPE_TAG_STATE.ordinal()][UniversalTag.INTEGER.getValue()] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_MSG_TYPE_TAG_STATE,
KdcRepStatesEnum.KDC_REP_MSG_TYPE_STATE,
UniversalTag.INTEGER,
new CheckMsgType() );
// --------------------------------------------------------------------------------------------
// Transition from msg-type value pa-data tag
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// padata [2]
super.transitions[KdcRepStatesEnum.KDC_REP_MSG_TYPE_STATE.ordinal()][KerberosConstants.KDC_REP_PA_DATA_TAG] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_MSG_TYPE_STATE,
KdcRepStatesEnum.KDC_REP_PA_DATA_TAG_STATE,
KerberosConstants.KDC_REP_PA_DATA_TAG,
new CheckNotNullLength<KdcRepContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from pa-data tag to pa-data sequence
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// padata [2] SEQUENCE OF
super.transitions[KdcRepStatesEnum.KDC_REP_PA_DATA_TAG_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_PA_DATA_TAG_STATE,
KdcRepStatesEnum.KDC_REP_PA_DATA_STATE,
UniversalTag.SEQUENCE,
new CheckNotNullLength<KdcRepContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from pa-data sequence to PA-DATA
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// padata [2] SEQUENCE OF PA-DATA
super.transitions[KdcRepStatesEnum.KDC_REP_PA_DATA_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_PA_DATA_STATE,
KdcRepStatesEnum.KDC_REP_PA_DATA_STATE,
UniversalTag.SEQUENCE,
new AddPaData() );
// --------------------------------------------------------------------------------------------
// Transition from PA-DATA to crealm tag
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// crealm [3]
super.transitions[KdcRepStatesEnum.KDC_REP_PA_DATA_STATE.ordinal()][KerberosConstants.KDC_REP_CREALM_TAG] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_PA_DATA_STATE,
KdcRepStatesEnum.KDC_REP_CREALM_TAG_STATE,
KerberosConstants.KDC_REP_CREALM_TAG,
new CheckNotNullLength<KdcRepContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from msg-type value to crealm tag (pa-data is empty)
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// crealm [3]
super.transitions[KdcRepStatesEnum.KDC_REP_MSG_TYPE_STATE.ordinal()][KerberosConstants.KDC_REP_CREALM_TAG] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_MSG_TYPE_STATE,
KdcRepStatesEnum.KDC_REP_CREALM_TAG_STATE,
KerberosConstants.KDC_REP_CREALM_TAG,
new CheckNotNullLength<KdcRepContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from crealm tag to crealm value
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// crealm [3] Realm,
super.transitions[KdcRepStatesEnum.KDC_REP_CREALM_TAG_STATE.ordinal()][UniversalTag.GENERAL_STRING.getValue()] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_CREALM_TAG_STATE,
KdcRepStatesEnum.KDC_REP_CREALM_STATE,
UniversalTag.GENERAL_STRING,
new StoreCRealm() );
// --------------------------------------------------------------------------------------------
// Transition from crealm value to cname
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// cname [4] PrincipalName,
super.transitions[KdcRepStatesEnum.KDC_REP_CREALM_STATE.ordinal()][KerberosConstants.KDC_REP_CNAME_TAG] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_CREALM_STATE,
KdcRepStatesEnum.KDC_REP_CNAME_STATE,
KerberosConstants.KDC_REP_CNAME_TAG,
new StoreCName() );
// --------------------------------------------------------------------------------------------
// Transition from cname to ticket
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// ticket [5] Ticket,
super.transitions[KdcRepStatesEnum.KDC_REP_CNAME_STATE.ordinal()][KerberosConstants.KDC_REP_TICKET_TAG] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_CNAME_STATE,
KdcRepStatesEnum.KDC_REP_TICKET_STATE,
KerberosConstants.KDC_REP_TICKET_TAG,
new StoreTicket() );
// --------------------------------------------------------------------------------------------
// Transition from ticket to enc-part
// --------------------------------------------------------------------------------------------
// KDC-REP ::= SEQUENCE {
// ...
// enc-part [6] EncryptedData
super.transitions[KdcRepStatesEnum.KDC_REP_TICKET_STATE.ordinal()][KerberosConstants.KDC_REP_ENC_PART_TAG] =
new GrammarTransition<KdcRepContainer>(
KdcRepStatesEnum.KDC_REP_TICKET_STATE,
KdcRepStatesEnum.KDC_REP_ENC_PART_STATE,
KerberosConstants.KDC_REP_ENC_PART_TAG,
new StoreEncPart() );
}
/**
* Get the instance of this grammar
*
* @return An instance on the KDC-REQ Grammar
*/
public static Grammar<KdcRepContainer> getInstance()
{
return instance;
}
}