| /* |
| * 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.kdcReq; |
| |
| |
| 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.kdcReq.actions.AddPaData; |
| import org.apache.directory.shared.kerberos.codec.kdcReq.actions.CheckMsgType; |
| import org.apache.directory.shared.kerberos.codec.kdcReq.actions.StoreKdcReqBody; |
| import org.apache.directory.shared.kerberos.codec.kdcReq.actions.StorePvno; |
| 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 KdcReqGrammar extends AbstractGrammar<KdcReqContainer> |
| { |
| /** The logger */ |
| static final Logger LOG = LoggerFactory.getLogger( KdcReqGrammar.class ); |
| |
| /** A speedup for logger */ |
| static final boolean IS_DEBUG = LOG.isDebugEnabled(); |
| |
| /** The instance of grammar. KdcReqGrammar is a singleton */ |
| private static Grammar<KdcReqContainer> instance = new KdcReqGrammar(); |
| |
| |
| /** |
| * Creates a new KdcReqGrammar object. |
| */ |
| @SuppressWarnings("unchecked") |
| private KdcReqGrammar() |
| { |
| setName( KdcReqGrammar.class.getName() ); |
| |
| // Create the transitions table |
| super.transitions = new GrammarTransition[KdcReqStatesEnum.LAST_KDC_REQ_STATE.ordinal()][256]; |
| |
| // ============================================================================================ |
| // KdcReq |
| // ============================================================================================ |
| // -------------------------------------------------------------------------------------------- |
| // Transition from KdcReq init to KdcReq SEQ |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| super.transitions[KdcReqStatesEnum.START_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.START_STATE, |
| KdcReqStatesEnum.KDC_REQ_PVNO_TAG_STATE, |
| UniversalTag.SEQUENCE, |
| new CheckNotNullLength<KdcReqContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from KdcReq SEQ to pvno tag |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // pvno [1] |
| super.transitions[KdcReqStatesEnum.KDC_REQ_PVNO_TAG_STATE.ordinal()][KerberosConstants.KDC_REQ_PVNO_TAG] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_PVNO_TAG_STATE, |
| KdcReqStatesEnum.KDC_REQ_PVNO_STATE, |
| KerberosConstants.KDC_REQ_PVNO_TAG, |
| new CheckNotNullLength<KdcReqContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from pvno tag to pvno value |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // pvno [1] INTEGER (5) , |
| super.transitions[KdcReqStatesEnum.KDC_REQ_PVNO_STATE.ordinal()][UniversalTag.INTEGER.getValue()] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_PVNO_STATE, |
| KdcReqStatesEnum.KDC_REQ_MSG_TYPE_TAG_STATE, |
| UniversalTag.INTEGER, |
| new StorePvno() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from pvno value to msg-type tag |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // ... |
| // msg-type [2] |
| super.transitions[KdcReqStatesEnum.KDC_REQ_MSG_TYPE_TAG_STATE.ordinal()][KerberosConstants.KDC_REQ_MSG_TYPE_TAG] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_MSG_TYPE_TAG_STATE, |
| KdcReqStatesEnum.KDC_REQ_MSG_TYPE_STATE, |
| KerberosConstants.KDC_REQ_MSG_TYPE_TAG, |
| new CheckNotNullLength<KdcReqContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from msg-type tag to msg-type value |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // ... |
| // msg-type [2] INTEGER (10 -- AS -- | 12 -- TGS --), |
| super.transitions[KdcReqStatesEnum.KDC_REQ_MSG_TYPE_STATE.ordinal()][UniversalTag.INTEGER.getValue()] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_MSG_TYPE_STATE, |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_OR_REQ_BODY_STATE, |
| UniversalTag.INTEGER, |
| new CheckMsgType() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from msg-type value to padata tag |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // ... |
| // padata [3] |
| super.transitions[KdcReqStatesEnum.KDC_REQ_PA_DATA_OR_REQ_BODY_STATE.ordinal()][KerberosConstants.KDC_REQ_PA_DATA_TAG] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_OR_REQ_BODY_STATE, |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_TAG_STATE, |
| KerberosConstants.KDC_REQ_PA_DATA_TAG, |
| new CheckNotNullLength<KdcReqContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from msg-type value to KDC-REQ-BODY tag (pa-data is missing) |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // ... |
| // req-body [4] |
| super.transitions[KdcReqStatesEnum.KDC_REQ_PA_DATA_OR_REQ_BODY_STATE.ordinal()][KerberosConstants.KDC_REQ_KDC_REQ_BODY_TAG] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_OR_REQ_BODY_STATE, |
| KdcReqStatesEnum.KDC_REQ_KDC_REQ_BODY_STATE, |
| KerberosConstants.KDC_REQ_KDC_REQ_BODY_TAG, |
| new StoreKdcReqBody() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from padata tag to pa-data SEQ |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // ... |
| // padata [3] SEQUENCE OF |
| super.transitions[KdcReqStatesEnum.KDC_REQ_PA_DATA_TAG_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_TAG_STATE, |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_SEQ_STATE, |
| UniversalTag.SEQUENCE, |
| new CheckNotNullLength<KdcReqContainer>() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from pa-data SEQ to pa-data |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // ... |
| // padata [3] SEQUENCE OF <PA-DATA> |
| super.transitions[KdcReqStatesEnum.KDC_REQ_PA_DATA_SEQ_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_SEQ_STATE, |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_STATE, |
| UniversalTag.SEQUENCE, |
| new AddPaData() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from pa-data to pa-data |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // ... |
| // padata [3] SEQUENCE OF <PA-DATA> |
| super.transitions[KdcReqStatesEnum.KDC_REQ_PA_DATA_STATE.ordinal()][UniversalTag.SEQUENCE.getValue()] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_STATE, |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_STATE, |
| UniversalTag.SEQUENCE, |
| new AddPaData() ); |
| |
| // -------------------------------------------------------------------------------------------- |
| // Transition from pa-data to KDC-REQ-BODY tag |
| // -------------------------------------------------------------------------------------------- |
| // KDC-REQ ::= SEQUENCE { |
| // ... |
| // req-body [4] |
| super.transitions[KdcReqStatesEnum.KDC_REQ_PA_DATA_STATE.ordinal()][KerberosConstants.KDC_REQ_KDC_REQ_BODY_TAG] = |
| new GrammarTransition<KdcReqContainer>( |
| KdcReqStatesEnum.KDC_REQ_PA_DATA_STATE, |
| KdcReqStatesEnum.KDC_REQ_KDC_REQ_BODY_STATE, |
| KerberosConstants.KDC_REQ_KDC_REQ_BODY_TAG, |
| new StoreKdcReqBody() ); |
| } |
| |
| |
| /** |
| * Get the instance of this grammar |
| * |
| * @return An instance on the KDC-REQ Grammar |
| */ |
| public static Grammar<KdcReqContainer> getInstance() |
| { |
| return instance; |
| } |
| } |
