qos.length = 12;
        qos.impersonation_level = 2;
        qos.context_mode = 1;
        qos.effective_only = 0;
        this.object_attributes.security_quality_of_service = qos;
        this.ptype = 0;
        this.flags = DCERPC_FIRST_FRAG | DCERPC_LAST_FRAG;
    }

import jcifs.SmbConstants;
import jcifs.util.Hexdump;


/**
 * 
 * @author mbechler
 *
 */
public class NameServiceClientImpl implements Runnable, NameServiceClient {

    private static final int NAME_SERVICE_UDP_PORT = 137;

    static final byte[] UNKNOWN_MAC_ADDRESS = new byte[] {
        (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00, (byte) 0x00
    };

	} LsarQosInfo;

	typedef struct {
		uint32_t length;
		uint8_t *root_directory;
		unicode_string *object_name;
		uint32_t attributes;
		uint32_t security_descriptor;
		LsarQosInfo *security_quality_of_service;
	} LsarObjectAttributes;

	typedef struct {
		unicode_string name;
		sid_t *sid;
	} LsarDomainInfo;

	typedef struct {
		unicode_string name;
		unicode_string dns_domain;
		unicode_string dns_forest;

	} LsarQosInfo;

	typedef struct {
		uint32_t length;
		uint8_t *root_directory;
		unicode_string *object_name;
		uint32_t attributes;
		uint32_t security_descriptor;
		LsarQosInfo *security_quality_of_service;
	} LsarObjectAttributes;

	typedef struct {
		unicode_string name;
		sid_t *sid;
	} LsarDomainInfo;

	typedef struct {
		unicode_string name;
		unicode_string dns_domain;
		unicode_string dns_forest;

    }


    @Override
    public SmbTreeImpl getSmbTree ( String share, String service ) {
        if ( share == null ) {
            share = "IPC$";
        }

        synchronized ( this.trees ) {
            for ( SmbTreeImpl t : this.trees ) {
                if ( t.matches(share, service) ) {
                    return t.acquire();
                }
            }

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