* environment.
     *
     * @param tc
     *            context to use
     */
    public Type3Message(final CIFSContext tc) {
        setFlags(getDefaultFlags(tc));
        setDomain(tc.getConfig().getDefaultDomain());
        setUser(tc.getConfig().getDefaultUsername());
        setWorkstation(tc.getNameServiceClient().getLocalHost().getHostName());
    }

    /**

     *
     * @param tc
     *            the CIFS context for this handle
     */
    public DcerpcHandle(final CIFSContext tc) {
        this.transportContext = tc;
        this.binding = null;
    }

    /**
     * Constructs a DcerpcHandle with the specified CIFS context and binding
     *
     * @param tc
     *            the CIFS context for this handle

     * environment.
     *
     * @param tc
     *            context to use
     */
    public Type2Message(final CIFSContext tc) {
        this(tc, getDefaultFlags(tc), null, null);
    }

    /**
     * Creates a Type-2 message in response to the given Type-1 message
     * using default values from the current environment.
     *
     * @param tc
     *            context to use
     * @param type1

            log.debug("Ignoring invalid initial token", e1);
        }

        return new SpnegoContext(tc.getConfig(), setupTargetName(tc, host, new NtlmContext(tc, this, doSigning)));
    }

    private static SSPContext setupTargetName(CIFSContext tc, String host, NtlmContext ntlmContext) {
        if (host != null && tc.getConfig().isSendNTLMTargetName()) {
            ntlmContext.setTargetName(String.format("cifs/%s", host));
        }

    public boolean isGroupAddress(final CIFSContext tc) throws UnknownHostException {
        checkData(tc);
        return this.groupName;
    }

    @Override
    public int getNodeType(final CIFSContext tc) throws UnknownHostException {
        checkData(tc);
        return this.nodeType;
    }

    @Override
    public boolean isBeingDeleted(final CIFSContext tc) throws UnknownHostException {

     *
     * @param tc the CIFS context containing configuration
     */
    public NameServiceClientImpl(final CIFSContext tc) {
        this(tc.getConfig().getNetbiosLocalPort(), tc.getConfig().getNetbiosLocalAddress(), tc);
    }

    NameServiceClientImpl(final int lport, final InetAddress laddr, final CIFSContext tc) {
        this.lport = lport;
        this.laddr = laddr;

    @Override
    public SmbTransportImpl getSmbTransport(final CIFSContext tc, final Address address, final int port, final boolean nonPooled) {
        return getSmbTransport(tc, address, port, tc.getConfig().getLocalAddr(), tc.getConfig().getLocalPort(), null, nonPooled);
    }

    @Override
    public SmbTransportImpl getSmbTransport(final CIFSContext tc, final Address address, final int port, final boolean nonPooled,

                }
                if ((!foundKerberos || this.forceFallback) && this.canFallback && tc.getConfig().isAllowNTLMFallback()) {
                    log.debug("Falling back to NTLM authentication");
                    return super.createContext(tc, targetDomain, host, initialToken, doSigning);
                }
                if (!foundKerberos) {

                assertThrows(SmbUnsupportedOperationException.class, () -> auth.createContext(tc, null, "server.example.com", init, false));
        assertTrue(ex.getMessage().contains("Server does not support kerberos authentication"));
        // No fallback attempted; config should not be queried in this path
        verify(tc, never()).getConfig();
        verifyNoInteractions(config);
    }

    @Test

        }

        @Override
        public SSPContext createContext(CIFSContext tc, String targetDomain, String host, byte[] initialToken, boolean doSigning)
                throws SmbException {
            // Validate required argument and interact with the provided CIFSContext
            if (tc == null) {
                throw new NullPointerException("tc");
            }