}
        if (this.smb2) {
            if (key != -1) {
                return null;
            }
            final int cmd = Encdec.dec_uint16le(this.sbuf, 4 + 12) & 0xFFFF;
            if (cmd == 0x12) {
                return new Smb2OplockBreakNotification(getContext().getConfig());
            }
        } else {
            if (key != 0xFFFF) {
                return null;
            }