/*
* 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.krbSafeBody;
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.krbSafeBody.actions.KrbSafeBodyInit;
import org.apache.directory.shared.kerberos.codec.krbSafeBody.actions.StoreRecipientAddress;
import org.apache.directory.shared.kerberos.codec.krbSafeBody.actions.StoreSenderAddress;
import org.apache.directory.shared.kerberos.codec.krbSafeBody.actions.StoreSeqNumber;
import org.apache.directory.shared.kerberos.codec.krbSafeBody.actions.StoreTimestamp;
import org.apache.directory.shared.kerberos.codec.krbSafeBody.actions.StoreUsec;
import org.apache.directory.shared.kerberos.codec.krbSafeBody.actions.StoreUserData;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
/**
* This class implements the KRB-SAFE-BODY 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 KrbSafeBodyGrammar extends AbstractGrammar<KrbSafeBodyContainer>
{
/** The logger */
static final Logger LOG = LoggerFactory.getLogger( KrbSafeBodyGrammar.class );
/** A speedup for logger */
static final boolean IS_DEBUG = LOG.isDebugEnabled();
/** The instance of grammar. KrbSafeBodyGrammar is a singleton */
private static Grammar<KrbSafeBodyContainer> instance = new KrbSafeBodyGrammar();
/**
* Creates a new KrbSafeBodyGrammar object.
*/
@SuppressWarnings("unchecked")
private KrbSafeBodyGrammar()
{
setName( KrbSafeBodyGrammar.class.getName() );
// Create the transitions table
super.transitions = new GrammarTransition[KrbSafeBodyStatesEnum.LAST_KRB_SAFE_BODY_STATE.ordinal()][256];
// ============================================================================================
// KrbSafeBody
// ============================================================================================
// --------------------------------------------------------------------------------------------
// Transition from KrbSafeBody init to KrbSafeBody seq
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
super.transitions[KrbSafeBodyStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.START_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_TAG_STATE,
UniversalTag.SEQUENCE,
new KrbSafeBodyInit() );
// --------------------------------------------------------------------------------------------
// Transition from KrbSafeBody seq to user-data tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// user-data [0]
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_TAG_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_USER_DATA_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_TAG_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_USER_DATA_TAG,
new CheckNotNullLength<KrbSafeBodyContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from user-data tag to user-data value
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// user-data [0] OCTET STRING
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_TAG_STATE.ordinal()][UniversalTag.OCTET_STRING
.getValue()] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_TAG_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_STATE,
UniversalTag.OCTET_STRING,
new StoreUserData() );
// --------------------------------------------------------------------------------------------
// Transition from user-data value to timestamp tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// timestamp [1]
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_TIMESTAMP_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_TIMESTAMP_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_TIMESTAMP_TAG,
new CheckNotNullLength<KrbSafeBodyContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from timestamp tag to timestamp value
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// timestamp [1] KerberosTime OPTIONAL
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_TIMESTAMP_TAG_STATE.ordinal()][UniversalTag.GENERALIZED_TIME
.getValue()] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_TIMESTAMP_TAG_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_TIMESTAMP_STATE,
UniversalTag.GENERALIZED_TIME,
new StoreTimestamp() );
// --------------------------------------------------------------------------------------------
// Transition from timestamp value to usec tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// usec [2]
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_TIMESTAMP_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_USEC_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_TIMESTAMP_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USEC_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_USEC_TAG,
new CheckNotNullLength<KrbSafeBodyContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from usec tag to usec value
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// usec [2] Microseconds OPTIONAL
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USEC_TAG_STATE.ordinal()][UniversalTag.INTEGER.getValue()] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USEC_TAG_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USEC_STATE,
UniversalTag.INTEGER,
new StoreUsec() );
// --------------------------------------------------------------------------------------------
// Transition from usec value to seq-number tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// seq-number [3]
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USEC_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_SEQ_NUMBER_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USEC_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_NUMBER_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_SEQ_NUMBER_TAG,
new CheckNotNullLength<KrbSafeBodyContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from seq-number tag to seq-number value
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// seq-number [3] UInt32 OPTIONAL
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_NUMBER_TAG_STATE.ordinal()][UniversalTag.INTEGER
.getValue()] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_NUMBER_TAG_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_NUMBER_STATE,
UniversalTag.INTEGER,
new StoreSeqNumber() );
// --------------------------------------------------------------------------------------------
// Transition from seq-number to s-address tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// s-address [4] HostAddress
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_NUMBER_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_SENDER_ADDRESS_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_NUMBER_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SENDER_ADDRESS_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_SENDER_ADDRESS_TAG,
new StoreSenderAddress() );
// --------------------------------------------------------------------------------------------
// Transition from s-address tag to r-address tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// r-address [5] HostAddress
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SENDER_ADDRESS_TAG_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_RECIPIENT_ADDRESS_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SENDER_ADDRESS_TAG_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_RECIPIENT_ADDRESS_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_RECIPIENT_ADDRESS_TAG,
new StoreRecipientAddress() );
//----------------------------- OPTIONAL transitions ---------------------------
// --------------------------------------------------------------------------------------------
// Transition from user-data value to usec tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// usec [2]
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_USEC_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USEC_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_USEC_TAG,
new CheckNotNullLength<KrbSafeBodyContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from user-data value to seq-number tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// seq-number [3]
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_SEQ_NUMBER_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SEQ_NUMBER_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_SEQ_NUMBER_TAG,
new CheckNotNullLength<KrbSafeBodyContainer>() );
// --------------------------------------------------------------------------------------------
// Transition from user-data value to s-address tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// s-address [4]
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_SENDER_ADDRESS_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USER_DATA_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SENDER_ADDRESS_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_SENDER_ADDRESS_TAG,
new StoreSenderAddress() );
// --------------------------------------------------------------------------------------------
// Transition from usec value to s-address tag
// --------------------------------------------------------------------------------------------
// KRB-SAFE-BODY ::= SEQUENCE {
// s-address [4]
super.transitions[KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USEC_STATE.ordinal()][KerberosConstants.KRB_SAFE_BODY_SENDER_ADDRESS_TAG] =
new GrammarTransition<KrbSafeBodyContainer>(
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_USEC_STATE,
KrbSafeBodyStatesEnum.KRB_SAFE_BODY_SENDER_ADDRESS_TAG_STATE,
KerberosConstants.KRB_SAFE_BODY_SENDER_ADDRESS_TAG,
new StoreSenderAddress() );
}
/**
* Get the instance of this grammar
*
* @return An instance on the KRB-SAFE-BODY Grammar
*/
public static Grammar<KrbSafeBodyContainer> getInstance()
{
return instance;
}
}