| /* |
| * 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.api.asn1.actions.CheckNotNullLength; |
| import org.apache.directory.api.asn1.ber.grammar.AbstractGrammar; |
| import org.apache.directory.api.asn1.ber.grammar.Grammar; |
| import org.apache.directory.api.asn1.ber.grammar.GrammarTransition; |
| import org.apache.directory.api.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; |
| } |
| } |
