content: /*
   * © 2017 AgNO3 Gmbh & Co. KG
   * 
   * This library is free software; you can redistribute it and/or
   * modify it under the terms of the GNU Lesser General Public
   * License as published by the Free Software Foundation; either
   * version 2.1 of the License, or (at your option) any later version.
   * 
   * This library is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   * Lesser General Public License for more details.
   * 
   * You should have received a copy of the GNU Lesser General Public
   * License along with this library; if not, write to the Free Software
   * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   */
  package jcifs.internal.smb2.session;
  
  
  import jcifs.Configuration;
  import jcifs.internal.CommonServerMessageBlockRequest;
  import jcifs.internal.SMBProtocolDecodingException;
  import jcifs.internal.smb2.ServerMessageBlock2Response;
  import jcifs.internal.util.SMBUtil;
  import jcifs.smb.NtStatus;
  
  
  /**
   * @author mbechler
   *
   */
  public class Smb2SessionSetupResponse extends ServerMessageBlock2Response {
  
      /**
       * 
       */
      public static final int SMB2_SESSION_FLAGS_IS_GUEST = 0x1;
  
      /**
       * 
       */
      public static final int SMB2_SESSION_FLAGS_IS_NULL = 0x2;
  
      /**
       * 
       */
      public static final int SMB2_SESSION_FLAG_ENCRYPT_DATA = 0x4;
  
      private int sessionFlags;
      private byte[] blob;
  
  
      /**
       * @param config
       */
      public Smb2SessionSetupResponse ( Configuration config ) {
          super(config);
      }
  
  
      /**
       * {@inheritDoc}
       *
       * @see jcifs.internal.smb2.ServerMessageBlock2Response#prepare(jcifs.internal.CommonServerMessageBlockRequest)
       */
      @Override
      public void prepare ( CommonServerMessageBlockRequest next ) {
          if ( isReceived() ) {
              next.setSessionId(getSessionId());
          }
          super.prepare(next);
      }
  
  
      /**
       * {@inheritDoc}
       *
       * @see jcifs.internal.smb2.ServerMessageBlock2#isErrorResponseStatus()
       */
      @Override
      protected boolean isErrorResponseStatus () {
          return getStatus() != NtStatus.NT_STATUS_MORE_PROCESSING_REQUIRED && super.isErrorResponseStatus();
      }
  
  
      /**
       * {@inheritDoc}
       *
       * @see jcifs.internal.smb2.ServerMessageBlock2#writeBytesWireFormat(byte[], int)
       */
      @Override
      protected int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
          return 0;
      }
  
  
      /**
       * {@inheritDoc}
       * 
       * @throws Smb2ProtocolDecodingException
       *
       * @see jcifs.internal.smb2.ServerMessageBlock2#readBytesWireFormat(byte[], int)
       */
      @Override
      protected int readBytesWireFormat ( byte[] buffer, int bufferIndex ) throws SMBProtocolDecodingException {
          int start = bufferIndex;
  
          int structureSize = SMBUtil.readInt2(buffer, bufferIndex);
          if ( structureSize != 9 ) {
              throw new SMBProtocolDecodingException("Structure size != 9");
          }
  
          this.sessionFlags = SMBUtil.readInt2(buffer, bufferIndex + 2);
          bufferIndex += 4;
  
          int securityBufferOffset = SMBUtil.readInt2(buffer, bufferIndex);
          int securityBufferLength = SMBUtil.readInt2(buffer, bufferIndex + 2);
          bufferIndex += 4;
  
          int pad = bufferIndex - ( getHeaderStart() + securityBufferOffset );
          this.blob = new byte[securityBufferLength];
          System.arraycopy(buffer, getHeaderStart() + securityBufferOffset, this.blob, 0, securityBufferLength);
          bufferIndex += pad;
          bufferIndex += securityBufferLength;
  
          return bufferIndex - start;
      }
  
  
      /**
       * @return whether the session is either anonymous or a guest session
       */
      public boolean isLoggedInAsGuest () {
          return ( this.sessionFlags & ( SMB2_SESSION_FLAGS_IS_GUEST | SMB2_SESSION_FLAGS_IS_NULL ) ) != 0;
      }
  
  
      /**
       * @return the sessionFlags
       */
      public int getSessionFlags () {
          return this.sessionFlags;
      }
  
  
      /**
       * @return security blob
       */
      public byte[] getBlob () {
          return this.blob;
      }
  
  }
  