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A pure-java CIFS/SMB client library
/*
* © 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.info;
import jcifs.CIFSException;
import jcifs.Configuration;
import jcifs.Decodable;
import jcifs.internal.SMBProtocolDecodingException;
import jcifs.internal.dtyp.SecurityDescriptor;
import jcifs.internal.fscc.FileFsFullSizeInformation;
import jcifs.internal.fscc.FileFsSizeInformation;
import jcifs.internal.fscc.FileInformation;
import jcifs.internal.fscc.FileInternalInfo;
import jcifs.internal.fscc.FileSystemInformation;
import jcifs.internal.smb2.ServerMessageBlock2Response;
import jcifs.internal.smb2.Smb2Constants;
import jcifs.internal.util.SMBUtil;
/**
* @author mbechler
*
*/
public class Smb2QueryInfoResponse extends ServerMessageBlock2Response {
private byte expectInfoType;
private byte expectInfoClass;
private Decodable info;
/**
* @param config
* @param expectInfoType
* @param expectInfoClass
*/
public Smb2QueryInfoResponse ( Configuration config, byte expectInfoType, byte expectInfoClass ) {
super(config);
this.expectInfoType = expectInfoType;
this.expectInfoClass = expectInfoClass;
}
/**
* @return the information
*/
public Decodable getInfo () {
return this.info;
}
/**
* @param clazz
* @return the information
* @throws CIFSException
*/
@SuppressWarnings ( "unchecked" )
public T getInfo ( Class clazz ) throws CIFSException {
if ( !clazz.isAssignableFrom(this.info.getClass()) ) {
throw new CIFSException("Incompatible file information class");
}
return (T) getInfo();
}
/**
* {@inheritDoc}
*
* @see jcifs.internal.smb2.ServerMessageBlock2#writeBytesWireFormat(byte[], int)
*/
@Override
protected int writeBytesWireFormat ( byte[] dst, int dstIndex ) {
return 0;
}
/**
* {@inheritDoc}
*
* @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("Expected structureSize = 9");
}
int bufferOffset = SMBUtil.readInt2(buffer, bufferIndex + 2) + getHeaderStart();
bufferIndex += 4;
int bufferLength = SMBUtil.readInt4(buffer, bufferIndex);
bufferIndex += 4;
Decodable i = createInformation(this.expectInfoType, this.expectInfoClass);
if ( i != null ) {
i.decode(buffer, bufferOffset, bufferLength);
}
bufferIndex = Math.max(bufferIndex, bufferOffset + bufferLength);
this.info = i;
return bufferIndex - start;
}
private static Decodable createInformation ( byte infoType, byte infoClass ) throws SMBProtocolDecodingException {
switch ( infoType ) {
case Smb2Constants.SMB2_0_INFO_FILE:
return createFileInformation(infoClass);
case Smb2Constants.SMB2_0_INFO_FILESYSTEM:
return createFilesystemInformation(infoClass);
case Smb2Constants.SMB2_0_INFO_QUOTA:
return createQuotaInformation(infoClass);
case Smb2Constants.SMB2_0_INFO_SECURITY:
return createSecurityInformation(infoClass);
default:
throw new SMBProtocolDecodingException("Unknwon information type " + infoType);
}
}
/**
* @param infoClass
* @return
* @throws SMBProtocolDecodingException
*/
private static Decodable createFilesystemInformation ( byte infoClass ) throws SMBProtocolDecodingException {
switch ( infoClass ) {
case FileSystemInformation.FS_FULL_SIZE_INFO:
return new FileFsFullSizeInformation();
case FileSystemInformation.FS_SIZE_INFO:
return new FileFsSizeInformation();
default:
throw new SMBProtocolDecodingException("Unknown filesystem info class " + infoClass);
}
}
/**
* @param infoClass
* @return
* @throws SMBProtocolDecodingException
*/
private static Decodable createSecurityInformation ( byte infoClass ) throws SMBProtocolDecodingException {
return new SecurityDescriptor();
}
/**
* @param infoClass
* @return
* @throws SMBProtocolDecodingException
*/
private static Decodable createQuotaInformation ( byte infoClass ) throws SMBProtocolDecodingException {
switch ( infoClass ) {
default:
throw new SMBProtocolDecodingException("Unknown quota info class " + infoClass);
}
}
/**
* @param infoClass
* @return
* @throws SMBProtocolDecodingException
*/
private static Decodable createFileInformation ( byte infoClass ) throws SMBProtocolDecodingException {
switch ( infoClass ) {
case FileInformation.FILE_INTERNAL_INFO:
return new FileInternalInfo();
default:
throw new SMBProtocolDecodingException("Unknown file info class " + infoClass);
}
}
}
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