Update nitrokey crate to 0.4.0

This change finally updates the version of the nitrokey crate that we
consume to 0.4.0. Along with that we update rand_core, one of its
dependencies, to 0.5.1. Further more we add cfg-if in version 0.1.10 and
getrandom in version 0.1.13, both of which are now new (non-development)
dependencies.

Import subrepo nitrokey/:nitrokey at e81057037e9b4f370b64c0a030a725bc6bdfb870
Import subrepo cfg-if/:cfg-if at 4484a6faf816ff8058088ad857b0c6bb2f4b02b2
Import subrepo getrandom/:getrandom at d661aa7e1b8cc80b47dabe3d2135b3b47d2858af
Import subrepo rand/:rand at d877ed528248b52d947e0484364a4e1ae59ca502

1 files changed, 735 insertions, 0 deletions

diff --git a/nitrokey/src/device/storage.rs b/nitrokey/src/device/storage.rs
new file mode 100644
index 0000000..370ce36
--- /dev/null
+++ b/nitrokey/src/device/storage.rs
@@ -0,0 +1,735 @@
+// Copyright (C) 2018-2019 Robin Krahl <robin.krahl@ireas.org>
+// SPDX-License-Identifier: MIT
+
+use std::fmt;
+
+use nitrokey_sys;
+
+use crate::device::{Device, FirmwareVersion, Model};
+use crate::error::Error;
+use crate::otp::GenerateOtp;
+use crate::util::{get_command_result, get_cstring};
+
+/// A Nitrokey Storage device without user or admin authentication.
+///
+/// Use the [`connect`][] method to obtain an instance wrapper or the [`connect_storage`] method to
+/// directly obtain an instance.  If you want to execute a command that requires user or admin
+/// authentication, use [`authenticate_admin`][] or [`authenticate_user`][].
+///
+/// # Examples
+///
+/// Authentication with error handling:
+///
+/// ```no_run
+/// use nitrokey::{Authenticate, User, Storage};
+/// # use nitrokey::Error;
+///
+/// fn perform_user_task<'a>(device: &User<'a, Storage<'a>>) {}
+/// fn perform_other_task(device: &Storage) {}
+///
+/// # fn try_main() -> Result<(), Error> {
+/// let mut manager = nitrokey::take()?;
+/// let device = manager.connect_storage()?;
+/// let device = match device.authenticate_user("123456") {
+///     Ok(user) => {
+///         perform_user_task(&user);
+///         user.device()
+///     },
+///     Err((device, err)) => {
+///         eprintln!("Could not authenticate as user: {}", err);
+///         device
+///     },
+/// };
+/// perform_other_task(&device);
+/// #     Ok(())
+/// # }
+/// ```
+///
+/// [`authenticate_admin`]: trait.Authenticate.html#method.authenticate_admin
+/// [`authenticate_user`]: trait.Authenticate.html#method.authenticate_user
+/// [`connect`]: struct.Manager.html#method.connect
+/// [`connect_storage`]: struct.Manager.html#method.connect_storage
+#[derive(Debug)]
+pub struct Storage<'a> {
+    manager: Option<&'a mut crate::Manager>,
+}
+
+/// The access mode of a volume on the Nitrokey Storage.
+#[derive(Clone, Copy, Debug, PartialEq)]
+pub enum VolumeMode {
+    /// A read-only volume.
+    ReadOnly,
+    /// A read-write volume.
+    ReadWrite,
+}
+
+impl fmt::Display for VolumeMode {
+    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
+        f.write_str(match *self {
+            VolumeMode::ReadOnly => "read-only",
+            VolumeMode::ReadWrite => "read-write",
+        })
+    }
+}
+
+/// The status of a volume on a Nitrokey Storage device.
+#[derive(Debug)]
+pub struct VolumeStatus {
+    /// Indicates whether the volume is read-only.
+    pub read_only: bool,
+    /// Indicates whether the volume is active.
+    pub active: bool,
+}
+
+/// Information about the SD card in a Storage device.
+#[derive(Debug)]
+pub struct SdCardData {
+    /// The serial number of the SD card.
+    pub serial_number: u32,
+    /// The size of the SD card in GB.
+    pub size: u8,
+    /// The year the card was manufactured, e. g. 17 for 2017.
+    pub manufacturing_year: u8,
+    /// The month the card was manufactured.
+    pub manufacturing_month: u8,
+    /// The OEM ID.
+    pub oem: u16,
+    /// The manufacturer ID.
+    pub manufacturer: u8,
+}
+
+/// Production information for a Storage device.
+#[derive(Debug)]
+pub struct StorageProductionInfo {
+    /// The firmware version.
+    pub firmware_version: FirmwareVersion,
+    /// The internal firmware version.
+    pub firmware_version_internal: u8,
+    /// The serial number of the CPU.
+    pub serial_number_cpu: u32,
+    /// Information about the SD card.
+    pub sd_card: SdCardData,
+}
+
+/// The status of a Nitrokey Storage device.
+#[derive(Debug)]
+pub struct StorageStatus {
+    /// The status of the unencrypted volume.
+    pub unencrypted_volume: VolumeStatus,
+    /// The status of the encrypted volume.
+    pub encrypted_volume: VolumeStatus,
+    /// The status of the hidden volume.
+    pub hidden_volume: VolumeStatus,
+    /// The firmware version.
+    pub firmware_version: FirmwareVersion,
+    /// Indicates whether the firmware is locked.
+    pub firmware_locked: bool,
+    /// The serial number of the SD card in the Storage stick.
+    pub serial_number_sd_card: u32,
+    /// The serial number of the smart card in the Storage stick.
+    pub serial_number_smart_card: u32,
+    /// The number of remaining login attempts for the user PIN.
+    pub user_retry_count: u8,
+    /// The number of remaining login attempts for the admin PIN.
+    pub admin_retry_count: u8,
+    /// Indicates whether a new SD card was found.
+    pub new_sd_card_found: bool,
+    /// Indicates whether the SD card is filled with random characters.
+    pub filled_with_random: bool,
+    /// Indicates whether the stick has been initialized by generating
+    /// the AES keys.
+    pub stick_initialized: bool,
+}
+
+impl<'a> Storage<'a> {
+    pub(crate) fn new(manager: &'a mut crate::Manager) -> Storage<'a> {
+        Storage {
+            manager: Some(manager),
+        }
+    }
+
+    /// Changes the update PIN.
+    ///
+    /// The update PIN is used to enable firmware updates.  Unlike the user and the admin PIN, the
+    /// update PIN is not managed by the OpenPGP smart card but by the Nitrokey firmware.  There is
+    /// no retry counter as with the other PIN types.
+    ///
+    /// # Errors
+    ///
+    /// - [`InvalidString`][] if one of the provided passwords contains a null byte
+    /// - [`WrongPassword`][] if the current update password is wrong
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// match device.change_update_pin("12345678", "87654321") {
+    ///     Ok(()) => println!("Updated update PIN."),
+    ///     Err(err) => eprintln!("Failed to update update PIN: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    ///
+    /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString
+    /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword
+    pub fn change_update_pin(&mut self, current: &str, new: &str) -> Result<(), Error> {
+        let current_string = get_cstring(current)?;
+        let new_string = get_cstring(new)?;
+        get_command_result(unsafe {
+            nitrokey_sys::NK_change_update_password(current_string.as_ptr(), new_string.as_ptr())
+        })
+    }
+
+    /// Enables the firmware update mode.
+    ///
+    /// During firmware update mode, the Nitrokey can no longer be accessed using HID commands.
+    /// To resume normal operation, run `dfu-programmer at32uc3a3256s launch`.  In order to enter
+    /// the firmware update mode, you need the update password that can be changed using the
+    /// [`change_update_pin`][] method.
+    ///
+    /// # Errors
+    ///
+    /// - [`InvalidString`][] if one of the provided passwords contains a null byte
+    /// - [`WrongPassword`][] if the current update password is wrong
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// match device.enable_firmware_update("12345678") {
+    ///     Ok(()) => println!("Nitrokey entered update mode."),
+    ///     Err(err) => eprintln!("Could not enter update mode: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    ///
+    /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString
+    /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword
+    pub fn enable_firmware_update(&mut self, update_pin: &str) -> Result<(), Error> {
+        let update_pin_string = get_cstring(update_pin)?;
+        get_command_result(unsafe {
+            nitrokey_sys::NK_enable_firmware_update(update_pin_string.as_ptr())
+        })
+    }
+
+    /// Enables the encrypted storage volume.
+    ///
+    /// Once the encrypted volume is enabled, it is presented to the operating system as a block
+    /// device.  The API does not provide any information on the name or path of this block device.
+    ///
+    /// # Errors
+    ///
+    /// - [`InvalidString`][] if the provided password contains a null byte
+    /// - [`WrongPassword`][] if the provided user password is wrong
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// match device.enable_encrypted_volume("123456") {
+    ///     Ok(()) => println!("Enabled the encrypted volume."),
+    ///     Err(err) => eprintln!("Could not enable the encrypted volume: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    ///
+    /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString
+    /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword
+    pub fn enable_encrypted_volume(&mut self, user_pin: &str) -> Result<(), Error> {
+        let user_pin = get_cstring(user_pin)?;
+        get_command_result(unsafe { nitrokey_sys::NK_unlock_encrypted_volume(user_pin.as_ptr()) })
+    }
+
+    /// Disables the encrypted storage volume.
+    ///
+    /// Once the volume is disabled, it can be no longer accessed as a block device.  If the
+    /// encrypted volume has not been enabled, this method still returns a success.
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// fn use_volume() {}
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// match device.enable_encrypted_volume("123456") {
+    ///     Ok(()) => {
+    ///         println!("Enabled the encrypted volume.");
+    ///         use_volume();
+    ///         match device.disable_encrypted_volume() {
+    ///             Ok(()) => println!("Disabled the encrypted volume."),
+    ///             Err(err) => {
+    ///                 eprintln!("Could not disable the encrypted volume: {}", err);
+    ///             },
+    ///         };
+    ///     },
+    ///     Err(err) => eprintln!("Could not enable the encrypted volume: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    pub fn disable_encrypted_volume(&mut self) -> Result<(), Error> {
+        get_command_result(unsafe { nitrokey_sys::NK_lock_encrypted_volume() })
+    }
+
+    /// Enables a hidden storage volume.
+    ///
+    /// This function will only succeed if the encrypted storage ([`enable_encrypted_volume`][]) or
+    /// another hidden volume has been enabled previously.  Once the hidden volume is enabled, it
+    /// is presented to the operating system as a block device and any previously opened encrypted
+    /// or hidden volumes are closed.  The API does not provide any information on the name or path
+    /// of this block device.
+    ///
+    /// Note that the encrypted and the hidden volumes operate on the same storage area, so using
+    /// both at the same time might lead to data loss.
+    ///
+    /// The hidden volume to unlock is selected based on the provided password.
+    ///
+    /// # Errors
+    ///
+    /// - [`AesDecryptionFailed`][] if the encrypted storage has not been opened before calling
+    ///   this method or the AES key has not been built
+    /// - [`InvalidString`][] if the provided password contains a null byte
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// device.enable_encrypted_volume("123445")?;
+    /// match device.enable_hidden_volume("hidden-pw") {
+    ///     Ok(()) => println!("Enabled a hidden volume."),
+    ///     Err(err) => eprintln!("Could not enable the hidden volume: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    ///
+    /// [`enable_encrypted_volume`]: #method.enable_encrypted_volume
+    /// [`AesDecryptionFailed`]: enum.CommandError.html#variant.AesDecryptionFailed
+    /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString
+    pub fn enable_hidden_volume(&mut self, volume_password: &str) -> Result<(), Error> {
+        let volume_password = get_cstring(volume_password)?;
+        get_command_result(unsafe {
+            nitrokey_sys::NK_unlock_hidden_volume(volume_password.as_ptr())
+        })
+    }
+
+    /// Disables a hidden storage volume.
+    ///
+    /// Once the volume is disabled, it can be no longer accessed as a block device.  If no hidden
+    /// volume has been enabled, this method still returns a success.
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// fn use_volume() {}
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// device.enable_encrypted_volume("123445")?;
+    /// match device.enable_hidden_volume("hidden-pw") {
+    ///     Ok(()) => {
+    ///         println!("Enabled the hidden volume.");
+    ///         use_volume();
+    ///         match device.disable_hidden_volume() {
+    ///             Ok(()) => println!("Disabled the hidden volume."),
+    ///             Err(err) => {
+    ///                 eprintln!("Could not disable the hidden volume: {}", err);
+    ///             },
+    ///         };
+    ///     },
+    ///     Err(err) => eprintln!("Could not enable the hidden volume: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    pub fn disable_hidden_volume(&mut self) -> Result<(), Error> {
+        get_command_result(unsafe { nitrokey_sys::NK_lock_hidden_volume() })
+    }
+
+    /// Creates a hidden volume.
+    ///
+    /// The volume is crated in the given slot and in the given range of the available memory,
+    /// where `start` is the start position as a percentage of the available memory, and `end` is
+    /// the end position as a percentage of the available memory.  The volume will be protected by
+    /// the given password.
+    ///
+    /// Note that the encrypted and the hidden volumes operate on the same storage area, so using
+    /// both at the same time might lead to data loss.
+    ///
+    /// According to the libnitrokey documentation, this function only works if the encrypted
+    /// storage has been opened.
+    ///
+    /// # Errors
+    ///
+    /// - [`AesDecryptionFailed`][] if the encrypted storage has not been opened before calling
+    ///   this method or the AES key has not been built
+    /// - [`InvalidString`][] if the provided password contains a null byte
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// device.enable_encrypted_volume("123445")?;
+    /// device.create_hidden_volume(0, 0, 100, "hidden-pw")?;
+    /// #     Ok(())
+    /// # }
+    /// ```
+    ///
+    /// [`AesDecryptionFailed`]: enum.CommandError.html#variant.AesDecryptionFailed
+    /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString
+    pub fn create_hidden_volume(
+        &mut self,
+        slot: u8,
+        start: u8,
+        end: u8,
+        password: &str,
+    ) -> Result<(), Error> {
+        let password = get_cstring(password)?;
+        get_command_result(unsafe {
+            nitrokey_sys::NK_create_hidden_volume(slot, start, end, password.as_ptr())
+        })
+    }
+
+    /// Sets the access mode of the unencrypted volume.
+    ///
+    /// This command will reconnect the unencrypted volume so buffers should be flushed before
+    /// calling it.  Since firmware version v0.51, this command requires the admin PIN.  Older
+    /// firmware versions are not supported.
+    ///
+    /// # Errors
+    ///
+    /// - [`InvalidString`][] if the provided password contains a null byte
+    /// - [`WrongPassword`][] if the provided admin password is wrong
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    /// use nitrokey::VolumeMode;
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// match device.set_unencrypted_volume_mode("12345678", VolumeMode::ReadWrite) {
+    ///     Ok(()) => println!("Set the unencrypted volume to read-write mode."),
+    ///     Err(err) => eprintln!("Could not set the unencrypted volume to read-write mode: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    ///
+    /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString
+    /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword
+    pub fn set_unencrypted_volume_mode(
+        &mut self,
+        admin_pin: &str,
+        mode: VolumeMode,
+    ) -> Result<(), Error> {
+        let admin_pin = get_cstring(admin_pin)?;
+        let result = match mode {
+            VolumeMode::ReadOnly => unsafe {
+                nitrokey_sys::NK_set_unencrypted_read_only_admin(admin_pin.as_ptr())
+            },
+            VolumeMode::ReadWrite => unsafe {
+                nitrokey_sys::NK_set_unencrypted_read_write_admin(admin_pin.as_ptr())
+            },
+        };
+        get_command_result(result)
+    }
+
+    /// Sets the access mode of the encrypted volume.
+    ///
+    /// This command will reconnect the encrypted volume so buffers should be flushed before
+    /// calling it.  It is only available in firmware version 0.49.
+    ///
+    /// # Errors
+    ///
+    /// - [`InvalidString`][] if the provided password contains a null byte
+    /// - [`WrongPassword`][] if the provided admin password is wrong
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    /// use nitrokey::VolumeMode;
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// match device.set_encrypted_volume_mode("12345678", VolumeMode::ReadWrite) {
+    ///     Ok(()) => println!("Set the encrypted volume to read-write mode."),
+    ///     Err(err) => eprintln!("Could not set the encrypted volume to read-write mode: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    ///
+    /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString
+    /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword
+    pub fn set_encrypted_volume_mode(
+        &mut self,
+        admin_pin: &str,
+        mode: VolumeMode,
+    ) -> Result<(), Error> {
+        let admin_pin = get_cstring(admin_pin)?;
+        let result = match mode {
+            VolumeMode::ReadOnly => unsafe {
+                nitrokey_sys::NK_set_encrypted_read_only(admin_pin.as_ptr())
+            },
+            VolumeMode::ReadWrite => unsafe {
+                nitrokey_sys::NK_set_encrypted_read_write(admin_pin.as_ptr())
+            },
+        };
+        get_command_result(result)
+    }
+
+    /// Returns the status of the connected storage device.
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// fn use_volume() {}
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let device = manager.connect_storage()?;
+    /// match device.get_status() {
+    ///     Ok(status) => {
+    ///         println!("SD card ID: {:#x}", status.serial_number_sd_card);
+    ///     },
+    ///     Err(err) => eprintln!("Could not get Storage status: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    pub fn get_status(&self) -> Result<StorageStatus, Error> {
+        let mut raw_status = nitrokey_sys::NK_storage_status {
+            unencrypted_volume_read_only: false,
+            unencrypted_volume_active: false,
+            encrypted_volume_read_only: false,
+            encrypted_volume_active: false,
+            hidden_volume_read_only: false,
+            hidden_volume_active: false,
+            firmware_version_major: 0,
+            firmware_version_minor: 0,
+            firmware_locked: false,
+            serial_number_sd_card: 0,
+            serial_number_smart_card: 0,
+            user_retry_count: 0,
+            admin_retry_count: 0,
+            new_sd_card_found: false,
+            filled_with_random: false,
+            stick_initialized: false,
+        };
+        let raw_result = unsafe { nitrokey_sys::NK_get_status_storage(&mut raw_status) };
+        get_command_result(raw_result).map(|_| StorageStatus::from(raw_status))
+    }
+
+    /// Returns the production information for the connected storage device.
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// fn use_volume() {}
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let device = manager.connect_storage()?;
+    /// match device.get_production_info() {
+    ///     Ok(data) => {
+    ///         println!("SD card ID:   {:#x}", data.sd_card.serial_number);
+    ///         println!("SD card size: {} GB", data.sd_card.size);
+    ///     },
+    ///     Err(err) => eprintln!("Could not get Storage production info: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    pub fn get_production_info(&self) -> Result<StorageProductionInfo, Error> {
+        let mut raw_data = nitrokey_sys::NK_storage_ProductionTest {
+            FirmwareVersion_au8: [0, 2],
+            FirmwareVersionInternal_u8: 0,
+            SD_Card_Size_u8: 0,
+            CPU_CardID_u32: 0,
+            SmartCardID_u32: 0,
+            SD_CardID_u32: 0,
+            SC_UserPwRetryCount: 0,
+            SC_AdminPwRetryCount: 0,
+            SD_Card_ManufacturingYear_u8: 0,
+            SD_Card_ManufacturingMonth_u8: 0,
+            SD_Card_OEM_u16: 0,
+            SD_WriteSpeed_u16: 0,
+            SD_Card_Manufacturer_u8: 0,
+        };
+        let raw_result = unsafe { nitrokey_sys::NK_get_storage_production_info(&mut raw_data) };
+        get_command_result(raw_result).map(|_| StorageProductionInfo::from(raw_data))
+    }
+
+    /// Clears the warning for a new SD card.
+    ///
+    /// The Storage status contains a field for a new SD card warning.  After a factory reset, the
+    /// field is set to true.  After filling the SD card with random data, it is set to false.
+    /// This method can be used to set it to false without filling the SD card with random data.
+    ///
+    /// # Errors
+    ///
+    /// - [`InvalidString`][] if the provided password contains a null byte
+    /// - [`WrongPassword`][] if the provided admin password is wrong
+    ///
+    /// # Example
+    ///
+    /// ```no_run
+    /// # use nitrokey::Error;
+    ///
+    /// # fn try_main() -> Result<(), Error> {
+    /// let mut manager = nitrokey::take()?;
+    /// let mut device = manager.connect_storage()?;
+    /// match device.clear_new_sd_card_warning("12345678") {
+    ///     Ok(()) => println!("Cleared the new SD card warning."),
+    ///     Err(err) => eprintln!("Could not set the clear the new SD card warning: {}", err),
+    /// };
+    /// #     Ok(())
+    /// # }
+    /// ```
+    ///
+    /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString
+    /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword
+    pub fn clear_new_sd_card_warning(&mut self, admin_pin: &str) -> Result<(), Error> {
+        let admin_pin = get_cstring(admin_pin)?;
+        get_command_result(unsafe {
+            nitrokey_sys::NK_clear_new_sd_card_warning(admin_pin.as_ptr())
+        })
+    }
+
+    /// Blinks the red and green LED alternatively and infinitely until the device is reconnected.
+    pub fn wink(&mut self) -> Result<(), Error> {
+        get_command_result(unsafe { nitrokey_sys::NK_wink() })
+    }
+
+    /// Exports the firmware to the unencrypted volume.
+    ///
+    /// This command requires the admin PIN.  The unencrypted volume must be in read-write mode
+    /// when this command is executed.  Otherwise, it will still return `Ok` but not write the
+    /// firmware.
+    ///
+    /// This command unmounts the unencrypted volume if it has been mounted, so all buffers should
+    /// be flushed.  The firmware is written to the `firmware.bin` file on the unencrypted volume.
+    ///
+    /// # Errors
+    ///
+    /// - [`InvalidString`][] if one of the provided passwords contains a null byte
+    /// - [`WrongPassword`][] if the admin password is wrong
+    ///
+    /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString
+    /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword
+    pub fn export_firmware(&mut self, admin_pin: &str) -> Result<(), Error> {
+        let admin_pin_string = get_cstring(admin_pin)?;
+        get_command_result(unsafe { nitrokey_sys::NK_export_firmware(admin_pin_string.as_ptr()) })
+    }
+}
+
+impl<'a> Drop for Storage<'a> {
+    fn drop(&mut self) {
+        unsafe {
+            nitrokey_sys::NK_logout();
+        }
+    }
+}
+
+impl<'a> Device<'a> for Storage<'a> {
+    fn into_manager(mut self) -> &'a mut crate::Manager {
+        self.manager.take().unwrap()
+    }
+
+    fn get_model(&self) -> Model {
+        Model::Storage
+    }
+}
+
+impl<'a> GenerateOtp for Storage<'a> {}
+
+impl From<nitrokey_sys::NK_storage_ProductionTest> for StorageProductionInfo {
+    fn from(data: nitrokey_sys::NK_storage_ProductionTest) -> Self {
+        Self {
+            firmware_version: FirmwareVersion {
+                major: data.FirmwareVersion_au8[0],
+                minor: data.FirmwareVersion_au8[1],
+            },
+            firmware_version_internal: data.FirmwareVersionInternal_u8,
+            serial_number_cpu: data.CPU_CardID_u32,
+            sd_card: SdCardData {
+                serial_number: data.SD_CardID_u32,
+                size: data.SD_Card_Size_u8,
+                manufacturing_year: data.SD_Card_ManufacturingYear_u8,
+                manufacturing_month: data.SD_Card_ManufacturingMonth_u8,
+                oem: data.SD_Card_OEM_u16,
+                manufacturer: data.SD_Card_Manufacturer_u8,
+            },
+        }
+    }
+}
+
+impl From<nitrokey_sys::NK_storage_status> for StorageStatus {
+    fn from(status: nitrokey_sys::NK_storage_status) -> Self {
+        StorageStatus {
+            unencrypted_volume: VolumeStatus {
+                read_only: status.unencrypted_volume_read_only,
+                active: status.unencrypted_volume_active,
+            },
+            encrypted_volume: VolumeStatus {
+                read_only: status.encrypted_volume_read_only,
+                active: status.encrypted_volume_active,
+            },
+            hidden_volume: VolumeStatus {
+                read_only: status.hidden_volume_read_only,
+                active: status.hidden_volume_active,
+            },
+            firmware_version: FirmwareVersion {
+                major: status.firmware_version_major,
+                minor: status.firmware_version_minor,
+            },
+            firmware_locked: status.firmware_locked,
+            serial_number_sd_card: status.serial_number_sd_card,
+            serial_number_smart_card: status.serial_number_smart_card,
+            user_retry_count: status.user_retry_count,
+            admin_retry_count: status.admin_retry_count,
+            new_sd_card_found: status.new_sd_card_found,
+            filled_with_random: status.filled_with_random,
+            stick_initialized: status.stick_initialized,
+        }
+    }
+}