/*_############################################################################
  _## 
  _##  SNMP4J-Agent 3 - UsmOwnKeyChange.java  
  _## 
  _##  Copyright (C) 2005-2025  Frank Fock (SNMP4J.org)
  _##  
  _##  Licensed 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.snmp4j.agent.mo.snmp;

import org.snmp4j.agent.MOAccess;
import org.snmp4j.agent.request.SubRequest;
import org.snmp4j.agent.mo.MOTableRow;
import org.snmp4j.PDU;
import org.snmp4j.smi.OctetString;
import org.snmp4j.smi.Variable;
import org.snmp4j.security.SecurityModel;

public class UsmOwnKeyChange extends UsmKeyChange {

    public UsmOwnKeyChange(int columnID, MOAccess access, int type) {
        super(columnID, access, type);
    }

    public void prepare(SubRequest<?> subRequest, MOTableRow row, MOTableRow changeSet, int column) {
        Variable[] indexValues =
                ((UsmMIB.UsmTableRow) row).getIndexDef().getIndexValues(row.getIndex());
        OctetString userName = (OctetString) indexValues[1];
        if ((!subRequest.getRequest().getSecurityName().equals(userName)) ||
                subRequest.getRequest().getSecurityModel() !=
                        SecurityModel.SECURITY_MODEL_USM) {
            subRequest.getStatus().setErrorStatus(PDU.noAccess);
        } else {
            super.prepare(subRequest, row, changeSet, column);
        }
    }


}
