} else {
                this.createDisposition = FILE_OPEN_IF;
            }
        } else {
            this.createDisposition = FILE_OPEN;
        }

        if ((createOptions & 0x0001) == 0) {
            this.createOptions = createOptions | 0x0040;
        } else {
            this.createOptions = createOptions;
        }
        this.impersonationLevel = 0x02; // As seen on NT :~)

        int bufferIndex = 50;

        // Set test values
        int testCapabilities = 0xABCDEF00;
        byte[] testGuid = new byte[16];
        Arrays.fill(testGuid, (byte) 0xFF);
        int testSecurityMode = 0x0001;
        int testDialect = 0x0202;

        // Write to buffer
        SMBUtil.writeInt4(testCapabilities, buffer, bufferIndex);
        System.arraycopy(testGuid, 0, buffer, bufferIndex + 4, 16);

    /**
     * Flag indicating that SIDs should be resolved to names.
     */
    public static final int SID_FLAG_RESOLVE_SIDS = 0x0001;

    /**
     * Well known SID: EVERYONE
     */
    public static SID EVERYONE = null;

    /**
     * Well known SID: CREATOR_OWNER
     */
    public static SID CREATOR_OWNER = null;

    /**

        System.arraycopy(dst, 2, actualDescrBytes, 0, expectedDescrBytes.length);
        assertArrayEquals(expectedDescrBytes, actualDescrBytes);

        // Verify level (0x0001)
        int descrEnd = 2 + expectedDescrBytes.length;
        assertEquals(0x01, dst[descrEnd]);
        assertEquals(0x00, dst[descrEnd + 1]);

        // Verify maxDataCount (16384)

	// have been invented. Pervasive use effectively makes them "official".
	//
	// See http://mdfs.net/Docs/Comp/Archiving/Zip/ExtraField
	zip64ExtraID       = 0x0001 // Zip64 extended information
	ntfsExtraID        = 0x000a // NTFS
	unixExtraID        = 0x000d // UNIX
	extTimeExtraID     = 0x5455 // Extended timestamp
	infoZipUnixExtraID = 0x5855 // Info-ZIP Unix extension
)

        Field commandField = ServerMessageBlock2.class.getDeclaredField("command");
        commandField.setAccessible(true);
        int command = (int) commandField.get(req);
        assertEquals(0x0001, command); // SMB2_SESSION_SETUP command value

        Field securityModeField = Smb2SessionSetupRequest.class.getDeclaredField("securityMode");
        securityModeField.setAccessible(true);

        src[srcIndex] = (byte) 0xC0;
        src[srcIndex + 1] = 0x0C;
        // Record type (NBSTAT = 0x0021)
        src[srcIndex + 2] = 0x00;
        src[srcIndex + 3] = 0x21;
        // Record class (IN = 0x0001)
        src[srcIndex + 4] = 0x00;
        src[srcIndex + 5] = 0x01;
        // TTL (4 bytes)
        src[srcIndex + 6] = 0x00;
        src[srcIndex + 7] = 0x00;
        src[srcIndex + 8] = 0x00;

     */
    public static final int DFS_VOLUME_FLAVOR_AD_BLOB = 0x200;
    /**
     * DFS storage state indicating offline status
     */
    public static final int DFS_STORAGE_STATE_OFFLINE = 0x0001;
    /**
     * DFS storage state indicating online status
     */
    public static final int DFS_STORAGE_STATE_ONLINE = 0x0002;
    /**
     * DFS storage state indicating active status
     */

    // @JvmField val TLS_NULL_WITH_NULL_NULL = init("TLS_NULL_WITH_NULL_NULL", 0x0000)
    @JvmField val TLS_RSA_WITH_NULL_MD5 = init("SSL_RSA_WITH_NULL_MD5", 0x0001)

    @JvmField val TLS_RSA_WITH_NULL_SHA = init("SSL_RSA_WITH_NULL_SHA", 0x0002)

    @JvmField val TLS_RSA_EXPORT_WITH_RC4_40_MD5 = init("SSL_RSA_EXPORT_WITH_RC4_40_MD5", 0x0003)

        }
    }

    private void performHealthCheck() {
        for (ChannelInfo channel : channels.values()) {
            if (channel.getIdleTime() > 60000) { // 1 minute idle
                // Send keep-alive
                try {
                    sendKeepAlive(channel);
                } catch (Exception e) {