}
            }

            /* Verification fails (w/ W2K3 server at least) if status is not 0. This
             * suggests MS doesn't compute the signature (correctly) for error responses
             * (perhaps for DOS reasons).
             */
            if (digest != null && resp.errorCode == 0) {
                digest.verify( BUF, 4, resp );
            }

/**
Do not use this class. Writing to the OutputStream of this type of socket
requires leaving a 4 byte prefix for the NBT header. IOW you must call
write( buf, 4, len ). Calling write( buf, 0, len ) will generate an error.
 */

public class NbtSocket extends Socket {

    private static final int SSN_SRVC_PORT = 139;
    private static final int BUFFER_SIZE = 512;
    private static final int DEFAULT_SO_TIMEOUT = 5000;

        this.digest.reset();

        int flags = SMBUtil.readInt4(data, offset + 16);
        if ( ( flags & ServerMessageBlock2.SMB2_FLAGS_SIGNED ) == 0 ) {
            log.error("The server did not sign a message we expected to be signed");
            return true;
        }

        byte[] sig = new byte[SIGNATURE_LENGTH];

     * <tt>NtlmPasswordAuthentication</tt> object against the domain controller
     * specified by the <tt>UniAddress</tt> parameter. If the credentials are
     * not accepted, an <tt>SmbAuthException</tt> will be thrown. If an error
     * occurs an <tt>SmbException</tt> will be thrown. If the credentials are
     * valid, the method will return without throwing an exception. See the
     * last <a href="../../../faq.html">FAQ</a> question.
     * <p>

                log.trace("Got subject " + s);
            }

            this.cachedSubject = s;
            return this.cachedSubject;
        }
        catch ( LoginException e ) {
            log.error("Failed to create login context", e);
            this.cachedSubject = new Subject();
            return null;
        }
    }


    /**
     * {@inheritDoc}
     *

import jcifs.smb.SmbTransportInternal;
import jcifs.smb.SmbTreeHandleInternal;


/**
 * 
 * 
 * 
 * Compatability Notes:
 * - Windows (2k8, 2k12) servers do not like extended security + DOS error codes
 * 
 * @author mbechler
 *
 */
@RunWith ( Parameterized.class )
@SuppressWarnings ( {
    "javadoc", "deprecation"
} )
public class SessionTest extends BaseCIFSTest {

                        }
                        continue;
                    }
                }
                catch ( CIFSException e ) {
                    log.debug("Error while checking for reuse", e);
                    continue;
                }

                if ( log.isTraceEnabled() ) {
                    log.trace("Reusing transport connection " + conn);
                }

            throws ConnectionTimeoutException, CIFSException {
        try {
            f.createNewFile();
            assertTrue("Did not see error", false);
        }
        catch ( SmbException e ) {
            if ( e.getCause() instanceof ConnectionTimeoutException ) {
                long timeout = System.currentTimeMillis() - start;
                assertTrue(

                this.bypass = false;
                System.arraycopy("BSRSPYL ".getBytes(), 0, data, index, 8);
            }
        }
        catch ( Exception ex ) {
            log.error("Signature failed", ex);
        }
        finally {
            if ( request instanceof SmbComNtCancel ) {
                this.signSequence++;
            }
            else {

    static {
        try {
            SPNEGO_MECH_OID = new ASN1ObjectIdentifier("1.3.6.1.5.5.2");
        }
        catch ( IllegalArgumentException e ) {
            log.error("Failed to initialize OID", e);
        }
    }

    private SSPContext mechContext;

    private boolean firstResponse = true;
    private boolean completed;

    private ASN1ObjectIdentifier[] mechs;