/*
* (c) Copyright 2003 Christian Lorenz ALL RIGHTS RESERVED.
*
* This file is part of the JavaBluetooth Stack.
*
* The JavaBluetooth Stack 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.
*
* The JavaBluetooth Stack 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.
*
* Created on Jun 28, 2003
* by Christian Lorenz
*/
package org.javabluetooth.stack.sdp;
import java.io.*;
import java.util.*;
import javax.bluetooth.DataElement;
import org.javabluetooth.stack.l2cap.L2CAPChannel;
import org.javabluetooth.util.Debug;
/**
* The SDPServerChannel provides SDP Services to remote Bluetooth Devices.
* It ususes the SDPServer to resolve available services and returns the attributes contained in the matching ServiceRecords.
* @see org.javabluetooth.stack.sdp.SDPServer
* @see org.javabluetooth.stack.sdp.SDPLocalServiceRecord
* @author Christian Lorenz
*/
public class SDPServerChannel extends L2CAPChannel {
private static final byte SDP_ERROR_RESPONSE = 0x01;
private static final byte SDP_SERVICE_SEARCH_REQUEST = 0x02;
private static final byte SDP_SERVICE_SEARCH_RESPONSE = 0x03;
private static final byte SDP_SERVICE_ATTRIBUTE_REQUEST = 0x04;
private static final byte SDP_SERVICE_ATTRIBUTE_RESPONSE = 0x05;
private static final byte SDP_SERVICE_SEARCH_ATTRIBUTE_REQUEST = 0x06;
private static final byte SDP_SERVICE_SEARCH_ATTRIBUTE_RESPONSE = 0x07;
private SDPServer sdpServer;
public SDPServerChannel(SDPServer sdpServer) { this.sdpServer = sdpServer; }
public void wasDisconnected() { }
public void send_SDP_ErrorResponse(short transactionID, short errorCode) {
Debug.println(2, "SDP: Sending Error Response. ");
//TODO send error response
}
public void receiveL2CAPPacket(byte[] dataPacket) {
//Debug.println("SDP: Received Packet: "+Debug.printByteArray(dataPacket));
switch (dataPacket[0]) //pduID
{
case SDP_ERROR_RESPONSE:
receive_SDP_ErrorResponse(dataPacket);
break;
case SDP_SERVICE_SEARCH_REQUEST:
receive_SDP_ServiceSearchRequest(dataPacket);
break;
case SDP_SERVICE_ATTRIBUTE_REQUEST:
receive_SDP_ServiceAttributeRequest(dataPacket);
break;
case SDP_SERVICE_SEARCH_ATTRIBUTE_REQUEST:
receive_SDP_ServiceSearchAttributeRequest(dataPacket);
break;
default:
receive_SDP_UnknownPacket(dataPacket);
}
}
private void receive_SDP_ErrorResponse(byte[] dataPacket) {
short transactionID = (short)(((short)dataPacket[1] & 0xff) << 8 | ((short)dataPacket[2] & 0xff));
short errorCode = (short)(((short)dataPacket[5] & 0xff) << 8 | ((short)dataPacket[6] & 0xff));
switch (errorCode) {
case 1:
System.err.println("SDP: Received Error Response: Invalid/unsupported SDP version. (transactionID=" +
transactionID + ")");
break;
case 2:
System.err.println("SDP: Received Error Response: Invalid Service Record Handle. (transactionID=" +
transactionID + ")");
break;
case 3:
System.err.println("SDP: Received Error Response: Invalid request syntax. (transactionID=" +
transactionID + ")");
break;
case 4:
System.err.println("SDP: Received Error Response: Invalid PDU Size. (transactionID=" + transactionID + ")");
break;
case 5:
System.err.println("SDP: Received Error Response: Invalid Continuation State. (transactionID=" +
transactionID + ")");
break;
case 6:
System.err.println("SDP: Received Error Response: Insufficient Resources to satisfy Request. (transactionID=" +
transactionID + ")");
break;
default:
System.err.println("SDP: Received Error Response: Error Code " + errorCode + " (transactionID=" +
transactionID + ")");
}
}
/** @param dataPacket */
private void receive_SDP_ServiceSearchRequest(byte[] dataPacket) {
Debug.println(4, "SDP: Received Service Search Request:", dataPacket);
short transactionID = (short)(((short)dataPacket[1] & 0xff) << 8 | ((short)dataPacket[2] & 0xff));
DataElement serviceSearchPattern = new DataElement(dataPacket, 5);
Vector handels = sdpServer.getServiceRecordHandels(serviceSearchPattern);
short resultHandlesCount = 0;
if (handels != null) resultHandlesCount = (short)handels.size();
short sdpLenght = (short)(5 + (resultHandlesCount * 4));
byte[] serviceSearchResponse = new byte[10 + (resultHandlesCount * 4)];
serviceSearchResponse[0] = 0x03;
serviceSearchResponse[1] = dataPacket[1]; //transaction ID
serviceSearchResponse[2] = dataPacket[2]; //transaction ID
serviceSearchResponse[3] = (byte)((sdpLenght >> 8) & 0xff);
serviceSearchResponse[4] = (byte)((sdpLenght) & 0xff);
serviceSearchResponse[5] = (byte)((resultHandlesCount >> 8) & 0xff); //total service record count
serviceSearchResponse[6] = (byte)((resultHandlesCount) & 0xff); //total service record count
serviceSearchResponse[7] = serviceSearchResponse[5]; //current service record count
serviceSearchResponse[8] = serviceSearchResponse[6]; //current service record count
serviceSearchResponse[9 + (resultHandlesCount * 4)] = 0x00; //no continuation
for (int i = 0; i < resultHandlesCount; i++) {
Long serviceHandleLong = (Long)handels.elementAt(i);
long serviceHandle = serviceHandleLong.longValue();
byte[] serviceHandleBytes = {
(byte)((serviceHandle >> 24) & 0xff), (byte)((serviceHandle >> 16) & 0xff), (byte)((serviceHandle >> 8) & 0xff),
(byte)((serviceHandle >> 0) & 0xff)
};
System.arraycopy(serviceHandleBytes, 0, serviceSearchResponse, 9 + (i * 4), 4);
}
try {
Debug.println(4, "SDP: Sending Service Search Response:", serviceSearchResponse);
sendL2CAPPacket(serviceSearchResponse);
}
catch (IOException e) { this.close(); }
}
/** @param dataPacket */
private void receive_SDP_ServiceAttributeRequest(byte[] dataPacket) {
Debug.println(4, "SDP: Received Service Attibute Request:", dataPacket);
short transactionID = (short)(((short)dataPacket[1] & 0xff) << 8 | ((short)dataPacket[2] & 0xff));
long serviceRecordHandle = (long)(((long)dataPacket[5] & 0xff) | ((long)dataPacket[6] & 0xff) << 8 |
((long)dataPacket[7] & 0xff) << 16 | ((long)dataPacket[8] & 0xff) << 24);
short maximumAttributeCount = (short)(((short)dataPacket[9] & 0xff) | ((short)dataPacket[10] & 0xff) << 8);
DataElement attributeIDList = new DataElement(dataPacket, 11);
byte[] attributeList = sdpServer.getAttributes(serviceRecordHandle, attributeIDList);
/*byte[] attributeList = {0x35, 0x59,
0x09, 0x00, 0x00, 0x0a,0x00, 0x00, 0x01, 0x00,
0x09, 0x00, 0x01, 0x35, 0x05, 0x1a, 0x00, 0x00, 0x11, 0x01,
0x09, 0x00, 0x04, 0x35, 0x0a, 0x35, 0x08, 0x1a, 0x00, 0x00, 0x01, 0x00, 0x19, 0x00, 0x03,
0x09, 0x00, 0x05, 0x35, 0x05, 0x1a, 0x00, 0x00, 0x10, 0x02,
0x09, 0x00, 0x06, 0x35, 0x09, 0x09, 0x65, 0x6e, 0x09, 0x00, 0x6a, 0x09, 0x01, 0x00,
0x09, 0x00, 0x09, 0x35, 0x0a, 0x35, 0x08, 0x1a, 0x00, 0x00, 0x11, 0x01, 0x09, 0x01, 0x00,
0x09, 0x01, 0x00, 0x25, 0x0c, 0x54, 0x69, 0x6e, 0x69, 0x20, 0x53, 0x65, 0x72, 0x76, 0x69, 0x63, 0x65
};
*/
/*DataElement resultAttributes = new DataElement(DataElement.DATSEQ);
resultAttributes.addElement(new DataElement(DataElement.U_INT_2,0));
resultAttributes.addElement(new DataElement(DataElement.U_INT_4,serviceRecordHandle));
resultAttributes.addElement(new DataElement(DataElement.U_INT_2,1));
DataElement serviceClassIDList = new DataElement(DataElement.DATSEQ);
UUID serviceClassUUID = new UUID(0x1111);
serviceClassIDList.addElement(new DataElement(DataElement.UUID,serviceClassUUID));
resultAttributes.addElement(serviceClassIDList);
resultAttributes.addElement(new DataElement(DataElement.U_INT_2,4));
DataElement protocolDescriptorList = new DataElement(DataElement.DATSEQ);
DataElement l2capDescriptor = new DataElement(DataElement.DATSEQ);
l2capDescriptor.addElement(new DataElement(DataElement.UUID,new UUID(0x1111)));
protocolDescriptorList.addElement(l2capDescriptor);
resultAttributes.addElement(protocolDescriptorList);
resultAttributes.addElement(new DataElement(DataElement.U_INT_2,5));
DataElement browseClassIDList = new DataElement(DataElement.DATSEQ);
UUID browseClassUUID = new UUID(0x1002);
browseClassIDList.addElement(new DataElement(DataElement.UUID,browseClassUUID));
resultAttributes.addElement(browseClassIDList);
resultAttributes.addElement(new DataElement(DataElement.U_INT_2,6));
DataElement languageBaseAttributeIDList = new DataElement(DataElement.DATSEQ);
languageBaseAttributeIDList.addElement(new DataElement(DataElement.U_INT_2,25966));
languageBaseAttributeIDList.addElement(new DataElement(DataElement.U_INT_2,106));
languageBaseAttributeIDList.addElement(new DataElement(DataElement.U_INT_2,256));
resultAttributes.addElement(languageBaseAttributeIDList);
resultAttributes.addElement(new DataElement(DataElement.U_INT_2,9));
DataElement profileDescriptorList = new DataElement(DataElement.DATSEQ);
DataElement profileDescriptor = new DataElement(DataElement.DATSEQ);
profileDescriptor.addElement(new DataElement(DataElement.UUID,new UUID(0x1111)));
profileDescriptor.addElement(new DataElement(DataElement.U_INT_2,256));
profileDescriptorList.addElement(profileDescriptor);
resultAttributes.addElement(profileDescriptorList);
resultAttributes.addElement(new DataElement(DataElement.U_INT_2,256));
resultAttributes.addElement(new DataElement(DataElement.STRING,"Tini Service"));
*/
short attributeByteCount = (short)attributeList.length;
short sdpLenght = (short)(3 + attributeByteCount);
byte[] serviceAttributeResponse = new byte[attributeByteCount + 10];
serviceAttributeResponse[0] = 0x05;
serviceAttributeResponse[1] = dataPacket[1]; //transaction ID
serviceAttributeResponse[2] = dataPacket[2]; //transaction ID
serviceAttributeResponse[3] = (byte)((sdpLenght >> 8) & 0xff);
serviceAttributeResponse[4] = (byte)((sdpLenght) & 0xff);
serviceAttributeResponse[5] = (byte)(((attributeByteCount) >> 8) & 0xff);
serviceAttributeResponse[6] = (byte)((attributeByteCount) & 0xff);
serviceAttributeResponse[7 + attributeByteCount] = 0x00; //no continuation
System.arraycopy(attributeList, 0, serviceAttributeResponse, 7, attributeByteCount);
try {
Debug.println(4, "SDP: Sending Service Attibute Response:", serviceAttributeResponse);
sendL2CAPPacket(serviceAttributeResponse);
}
catch (IOException e) { this.close(); }
}
private void receive_SDP_ServiceSearchAttributeRequest(byte[] dataPacket) {
Debug.println(4, "SDP: Received Service Search Attibute Request:", dataPacket);
//byte[] dummyPacket={0x05, 0x00, 0x01, 0x00, 0x66, 0x00, 0x63, 0x35, 0x61, 0x09, 0x00, 0x00, 0x0a, 0x00, 0x01, 0x00,
// 0x00, 0x09, 0x00, 0x01, 0x35, 0x03, 0x19, 0x11, 0x06, 0x09, 0x00, 0x04, 0x35, 0x11, 0x35, 0x03, 0x19, 0x01, 0x00,
// 0x35, 0x05, 0x19, 0x00, 0x03, 0x08, 0x01, 0x35, 0x03, 0x19, 0x00, 0x08, 0x09, 0x00, 0x05, 0x35, 0x03, 0x19, 0x10,
// 0x02, 0x09, 0x00, 0x06, 0x35, 0x09, 0x09, 0x65, 0x6e, 0x09, 0x00, 0x6a, 0x09, 0x01, 0x00, 0x09, 0x00, 0x08, 0x08,
// (byte) 0xff, 0x09, 0x00, 0x09, 0x35, 0x08, 0x35, 0x06, 0x19, 0x11, 0x06, 0x09, 0x01, 0x00, 0x09, 0x01, 0x00, 0x25,
// 0x0e, 0x46, 0x69, 0x6c, 0x65, 0x20, 0x54, 0x72, 0x61, 0x6e, 0x73, 0x66, 0x65, 0x72, 0x00, 0x00};
//sendData(dummyPacket);
short transactionID = (short)(((short)dataPacket[2] & 0xff) << 8 | ((short)dataPacket[1] & 0xff));
//short dataLenght=(short)(((short) dataPacket[4] & 0xff) << 8 | ((short) dataPacket[3]& 0xff));
//TODO service search attribute request
}
private void receive_SDP_UnknownPacket(byte[] dataPacket) {
System.err.println("SDP: Received unknown Packet: " + Debug.printByteArray(dataPacket));
short transactionID = (short)(((short)dataPacket[1] & 0xff) << 8 | ((short)dataPacket[2] & 0xff));
send_SDP_ErrorResponse(transactionID, (short)1);
}
}