/**
* Copyright (c) 2012, University of Konstanz, Distributed Systems Group
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the University of Konstanz nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
//Cleversafe open-source code header - Version 1.1 - December 1, 2006
//
//Cleversafe Dispersed Storage(TM) is software for secure, private and
//reliable storage of the world's data using information dispersal.
//
//Copyright (C) 2005-2007 Cleversafe, Inc.
//
//This program is free software; you can redistribute it and/or
//modify it under the terms of the GNU General Public License
//as published by the Free Software Foundation; either version 2
//of the License, or (at your option) any later version.
//
//This program 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 General Public License for more details.
//
//You should have received a copy of the GNU General Public License
//along with this program; if not, write to the Free Software
//Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
//USA.
//
//Contact Information:
// Cleversafe, 10 W. 35th Street, 16th Floor #84,
// Chicago IL 60616
// email: licensing@cleversafe.org
//
//END-OF-HEADER
//-----------------------
//@author: John Quigley <jquigley@cleversafe.com>
//@date: January 1, 2008
//---------------------
package org.jscsi.scsi.protocol.inquiry.vpd;
import java.io.ByteArrayOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.util.LinkedList;
import java.util.List;
import org.jscsi.scsi.protocol.util.ByteBufferInputStream;
public class DeviceIdentificationVPD extends VPDPage
{
public static final int PAGE_CODE = 0x83;
private int pageLength = 0;
private List<IdentificationDescriptor> descriptorList =
new LinkedList<IdentificationDescriptor>();
public DeviceIdentificationVPD(
int peripheralQualifier,
int peripheralDeviceType,
List<IdentificationDescriptor> descriptorList)
{
this.setPeripheralQualifier(peripheralQualifier);
this.setPeripheralDeviceType(peripheralDeviceType);
this.descriptorList = descriptorList;
}
public DeviceIdentificationVPD(int peripheralQualifier, int peripheralDeviceType)
{
this(peripheralQualifier, peripheralDeviceType, new LinkedList<IdentificationDescriptor>());
}
public void decode(byte[] header, ByteBuffer buffer) throws IOException
{
DataInputStream in = new DataInputStream(new ByteBufferInputStream(buffer));
// byte 0
int b0 = in.readUnsignedByte();
this.setPeripheralQualifier(b0 >>> 5);
this.setPeripheralDeviceType(b0 & 0x1F);
// byte 1
int b1 = in.readUnsignedByte();
if (b1 != PAGE_CODE)
{
throw new IOException("invalid page code: " + Integer.toHexString(b1));
}
this.setPageCode(b1);
// byte 2 - 3
this.pageLength = in.readUnsignedShort();
// identification descriptor list
descriptorList = this.parseDescriptorList(in);
}
public byte[] encode()
{
int pageLength = 0;
for (IdentificationDescriptor id : descriptorList)
{
pageLength += id.getIdentifierLength() + 4;
}
ByteArrayOutputStream baos = new ByteArrayOutputStream(pageLength + 4);
DataOutputStream out = new DataOutputStream(baos);
try
{
// byte 0
out.writeByte((this.getPeripheralQualifier() << 5) | this.getPeripheralDeviceType());
// byte 1
out.writeByte(this.getPageCode());
// byte 2 - 3
out.writeShort(pageLength);
// identification descriptor list
for (IdentificationDescriptor id : this.descriptorList)
{
out.write(id.encode());
}
return baos.toByteArray();
}
catch (IOException e)
{
throw new RuntimeException("Unable to encode CDB.");
}
}
/////////////////////////////////////////////////////////////////////////////
// utility
private List<IdentificationDescriptor> parseDescriptorList(DataInputStream in)
throws IOException
{
List<IdentificationDescriptor> descriptorList = new LinkedList<IdentificationDescriptor>();
int readPageLength = 0;
while (readPageLength < this.pageLength)
{
IdentificationDescriptor desc = new IdentificationDescriptor();
// byte 0
int b0 = in.readUnsignedByte();
desc.setProtocolIdentifier(b0 >>> 4);
desc.setCodeSet(b0 & 0x0F);
// byte 1
int b1 = in.readUnsignedByte();
desc.setPIV((b1 >>> 7) == 1);
desc.setAssociation((b1 & 0x30) >>> 4);
desc.setIdentifierType(IdentifierType.valueOf(b1 & 0x15));
// byte 2
in.readUnsignedByte();
// byte 3
int idLength = in.readUnsignedByte();
// identifier
byte[] ident = new byte[idLength];
in.read(ident);
desc.setIdentifier(ident);
descriptorList.add(desc);
readPageLength += idLength + 4;
}
return descriptorList;
}
/////////////////////////////////////////////////////////////////////////////
// getters/setters
public void addIdentificationDescriptor(IdentificationDescriptor identificationDescriptor)
{
this.descriptorList.add(identificationDescriptor);
}
public List<IdentificationDescriptor> getDescriptorList()
{
return descriptorList;
}
public void setDescriptorList(List<IdentificationDescriptor> descriptorList)
{
this.descriptorList = descriptorList;
}
}