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* Use CString to store temporary passwordsRobin Krahl2020-01-28
| | | | | | | This patch changes the generate_password function and the User and Admin structs to use a CString instead of a Vec<u8> when storing temporary passwords. This makes sure that the strings that are passed to the C API are properly null-terminated.
* Fix serial number for older Nitrokey Pro in list_devicesRobin Krahl2020-01-15
| | | | | | | | | | | | | Previously, we assumed that the serial number returned by hidapi contains the Nitrokey serial number as the least significant bytes. As disussed here [0], this is not true for Nitrokey Pro devices with firmware version 0.8 or older: They write the serial number to the most significant bytes instead. This patch update the get_hidapi_serial_number function so that list_devices now returns the correctly formatted and truncated serial number for all Nitrokey Pro devices. It also makes sure that the serial number is lowercase to be consistent with libnitrokey’s formatting.
* Document background operationsRobin Krahl2020-01-14
| | | | | This patch adds a new section about background operations to the crate documentation.
* Add the fill_sd_card function to StorageRobin Krahl2020-01-14
| | | | | | | | This patch adds support for libnitrokey’s NK_fill_SD_card_with_random_data function. It is executed by the fill_sd_card function of the Storage struct. We also add a new test case that is set to ignore because it takes between 30 and 60 minutes to run.
* Add the get_operation_status function to the Storage structRobin Krahl2020-01-14
| | | | | | | This patch adds support for the NK_get_progress_bar_value function: It adds the OperationStatus enum that stores the return value of this command and adds the get_operation_status function to the Storage struct that executes the command.
* Derive Clone, Copy, Debug, PartialEq for StatusRobin Krahl2020-01-14
| | | | | | Somehow I forgot to derive the common traits for the new Status struct. This patch adds the missing derive attribute for Clone, Copy, Debug and PartialEq.
* Add the get_sd_card_usage function to the Storage structRobin Krahl2020-01-14
| | | | | | This patch adds support for the NK_get_SD_usage_data function. It returns a range of the SD card that has not been accessed during this power cycle.
* Rename Status::get_status to get_storage_statusRobin Krahl2020-01-11
| | | | | | | In the last patch, we added the get_status function to the Device trait. This patch renames the Storage::get_status function to get_storage_status to resolve the name clash – though allowed by the compiler, it is rather confusing for the end user.
* Add support for the GET_STATUS commandRobin Krahl2020-01-11
| | | | | | | | | | | | | | | | | This patch adds support for the GET_STATUS command that returns the status information common to all Nitrokey devices. It can be accessed using the Device::get_status function and is stored in a Status struct. Due to a bug in the Storage firmware [0], the GET_STATUS command returns wrong firmware versions and serial numbers. Until this is fixed in libnitrokey [1], we have to manually execute the GET_DEVICE_STATUS command to fix these values for the Nitrokey Storage. Also, this leads to a name clash with the existing Storage::get_status function, which will be renamed in an upcoming patch. [0] https://github.com/Nitrokey/nitrokey-storage-firmware/issues/96 [1] https://github.com/Nitrokey/libnitrokey/issues/166
* Add the connect_path function to the Manager structRobin Krahl2020-01-07
| | | | | | This patch adds the connect_path function to the Manager struct that uses NK_connect_with_path to connect to a Nitrokey device at a given USB path.
* Add list_devices functionRobin Krahl2020-01-07
| | | | | | | This patch adds support for libnitrokey’s NK_list_devices function by introducing the top-level list_devices function. It returns a vector of DeviceInfo structs with information about all connected Nitrokey devices.
* Add the DeviceInfo structRobin Krahl2020-01-07
| | | | | | | | In the next patch, we will add support for the NK_list_devices functions that returns a list of NK_device_info structs with information about the connected devices. This patch introduces the DeviceInfo struct that holds the information returned by NK_list_devices and that can be created from a NK_device_info struct.
* Implement conversion traits for Model and NK_device_modelRobin Krahl2020-01-07
| | | | | | A nitrokey_sys::NK_device_model (= u32) value may correspond to a nitrokey::Model, and vice versa. This patch adds the appropriate From and TryFrom implementations.
* Add the Error::UnsupportedModelError variantRobin Krahl2020-01-07
| | | | | | This patch adds the UnsupportedModelError variant to the Error enum: When parsing the model returned by libnitrokey, we should provide a meaningful error message for unknown values.
* Simplify doc tests with resultsRobin Krahl2019-12-27
| | | | | | Since Rust 1.34.0, we no longer need a `fn main` comment in doc tests that return results. It is sufficient to have an `Ok` return value with type annotations.
* Implement std::convert::TryFrom<Config> for RawConfigRobin Krahl2019-12-27
| | | | | | Previously, the RawConfig struct had a try_from function. As the TryFrom trait has been stabilized with Rust 1.34.0, we can use it instead.
* Replace rand_os::OsRng with rand_core::OsRngRobin Krahl2019-12-27
| | | | | rand_os::OsRng has been deprecated. Instead we can use rand_core with the getrandom feature.
* Refactor the device module into submodulesRobin Krahl2019-07-16
| | | | | | This patch splits the rather large device module into the submodules pro, storage and wrapper. This only changes the internal code structure and does not affect the public API.
* Update rand_{core,os} dependenciesRobin Krahl2019-07-16
| | | | | | | This patch updates the rand_core dependency to version 0.5 and the rand_os dependency to version 0.2. This causes a change in util.rs: Instead of constructing an OsRng instance using OsRng::new(), we can directly instantiate the (now empty) struct.
* Add force_take function to ignore poisoned cacheRobin Krahl2019-07-09
| | | | | | | | | The take and take_blocking functions return a PoisonError if the cache is poisoned, i. e. if a thread panicked while holding the manager. This is a sensible default behaviour, but for example during testing, one might want to ignore the poisoned cache. This patch adds the force_take function that unwraps the PoisonError and returns the cached Manager even if the cache was poisoned.
* Remove allow(deprecated) attribute for in lib.rsRobin Krahl2019-07-09
| | | | | | During the connection manager refactoring, we temporarily used deprecated methods. This is no longer the case, so we can remove the allow(deprecated) attribute.
* Update documentation for Manager refactoringRobin Krahl2019-07-09
| | | | | | This patch updates the documentation to reflect the latest changes to connection handling. It also updates the doc tests to prefer the new methods over the old ones.
* Introduce into_manager for DeviceRobin Krahl2019-07-09
| | | | | | | | To enable applications like nitrokey-test to go back to a manager instance from a Device instance, we add the into_manager function to the Device trait. To do that, we have to keep track of the Manager’s lifetime by adding a lifetime to Device (and then to some other traits that use Device).
* Store mutable reference to Manager in DeviceRobin Krahl2019-07-08
| | | | | | | | | | | | | In the last patches, we ensured that devices can only be obtained using the Manager struct. But we did not ensure that there is only one device at a time. This patch adds a mutable reference to the Manager instance to the Device implementations. The borrow checker makes sure that there is only one mutable reference at a time. In this patch, we have to remove the old connect, Pro::connect and Storage::connect functions as they do no longer compile. (They discard the MutexGuard which invalidates the reference to the Manager.) Therefore the tests do no longer compile.
* Move {Pro, Storage}::connect into ManagerRobin Krahl2019-07-08
| | | | | | | As part of the connection refactoring, this patch moves the connect methods of the Pro and Storage structs into the Manager struct. To maintain compatibility with nitrokey-test, the old methods are not removed but marked as deprecated.
* Move the connect_model function into ManagerRobin Krahl2019-07-08
| | | | | | As part of the connection refactoring, this patch moves the connect_model function to the Manager struct. As the connect_model function is not used by nitrokey-test, it is removed.
* Move the connect function into ManagerRobin Krahl2019-07-08
| | | | | | | As part of the connection refactoring, we replace the connect function with the Manager::connect method. To maintain compatibility with nitrokey-test, the connect function is not removed but marked as deprecated.
* Add Manager struct to manage Nitrokey connectionsRobin Krahl2019-07-08
| | | | | | | | | | | | | As part of the connection refactoring, we introduce the Manager struct that deals with connection management. To make sure there can be only once instance of the manager, we add a global static Mutex that holds the single Manager instance. We use the struct to ensure that the user can only connect to one device at a time. This also changes the Error::PoisonError variant to store the sync::PoisonError. This allows the user to call into_inner on the PoisonError to retrieve the MutexGuard and to ignore the error (for example useful during testing).
* Add ConcurrentAccessError and PoisonError variantsRobin Krahl2019-07-08
| | | | | | | | | This patch prepares the refactoring of the connection methods by introducing the Error variants ConcurrentAccessError and PoisonError. ConcurrentAccessError indicates that the user tried to connect to obtain a token that is currently locked, and PoisonError indicates that a lock has been poisoned, i. e. a thread panicked while accessing using a token.
* Fix formatting error in device.rsRobin Krahl2019-07-07
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* Update nitrokey-sys to version 3.5Robin Krahl2019-07-05
| | | | | | | | | As the return type of the NK_get_{major,minor}_firmware_version methods changed with libnitrokey 3.5, we also have to adapt our get_firmware_version function in device.rs. This patch also updates the changelog and the todo list with the changes caused by the new libnitrokey version.
* Revert "Store mutable reference to Device in PasswordSafe"Robin Krahl2019-02-05
| | | | This reverts commit 13006c00dcbd570cf8347d89557834e320427377.
* Revert "Refactor User and Admin to use a mutable reference"Robin Krahl2019-02-05
| | | | This reverts commit 0972bbe82623c3d9649b6023d8f50d304aa0cde6.
* Store mutable reference to Device in PasswordSafeRobin Krahl2019-02-02
| | | | | | | | | The current implementation of PasswordSafe stored a normal reference to the Device. This patch changes the PasswordSafe struct to use a mutable reference instead. This allows the borrow checker to make sure that there is only one PasswordSafe instance at a time. While this is currently not needed, it will become important once we can lock the PWS on the Nitrokey when dropping the PasswordSafe instance.
* Refactor User and Admin to use a mutable referenceRobin Krahl2019-02-02
| | | | | | | | | | | | In the initial nitrokey-rs implementation, the Admin and the User struct take the Device by value to make sure that the user cannot initiate a second authentication while this first is still active (which would invalidate the temporary password). Now we realized that this is not necessary – taking a mutable reference has the same effect, but leads to a much cleaner API. This patch refactors the Admin and User structs – and all dependent code – to use a mutable reference instead of a Device value.
* Require mutable reference if method changes device stateRobin Krahl2019-02-02
| | | | | | | | | | | | Previously, all methods that access a Nitrokey device took a reference to the device as input. This method changes methods that change the device state to require a mutable reference instead. In most case, this is straightforward as the method writes data to the device (for example write_config or change_user_pin). But there are two edge cases: - Authenticating with a PIN changes the device state as it may decrease the PIN retry counter if the authentication fails. - Generating an HOTP code changes the device state as it increases the HOTP counter.
* Add device_mut method to DeviceWrapperRobin Krahl2019-02-02
| | | | | | To prepare the mutability refactoring, we add a device_mut method to DeviceWrapper that can be used to obtain a mutable reference to the wrapped device.
* Implement DerefMut for User and AdminRobin Krahl2019-02-02
| | | | | | As we want to change some methods to take a mutable reference to a Device, we implement DerefMut for User<T> and Admin<T> so that users can obtain a mutable reference to the wrapped device.
* Add set_encrypted_volume_mode method to StorageRobin Krahl2019-01-31
| | | | | | | | | | Previously, we considered this command as unsupported as it only was available with firmware version 0.49. But as discussed in nitrocli issue 80 [0], it will probably be re-enabled in future firmware versions. Therefore this patch adds the set_encrypted_volume_mode to Storage. [0] https://github.com/d-e-s-o/nitrocli/issues/80
* Prefer eprintln over println for error messagesRobin Krahl2019-01-28
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* Add get_firmware_version methodRobin Krahl2019-01-28
| | | | | | | | This patch combines the get_{major,minor}_firmware_version methods into the new get_firmware_version method that returns a FirmwareVersion struct. Currently, this requires casting from i32 to u8. But this will be fixed with the next libnitrokey version as we change the return types for the firmware getters.
* Always return a Result when communicating with a deviceRobin Krahl2019-01-27
| | | | | | | | Previously, we sometimes returned a value without wrapping it in a result if the API method did not indicate errors in the return value. But we can detect errors using the NK_get_last_command_status function. This patch changes the return types of these methods to Result<_, Error> and adds error checks.
* Use if instead of match for boolean expressionRobin Krahl2019-01-27
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* Replace or with or_else in get_cstringRobin Krahl2019-01-27
| | | | | To avoid unnecessary function calls, we replace the or with an or_else in get_cstring.
* Remove the static lifetime modifier from constantsRobin Krahl2019-01-27
| | | | | The DEFAULT_{ADMIN,USER}_PIN constants implicitly have static lifetime. Therefore we can remove the static lifetime modifiers.
* Rename Error::Unknown to Error::UnknownErrorRobin Krahl2019-01-27
| | | | | For consistency with the other Error variants, we rename Unknown to UnknownError.
* Remove the Result typedefRobin Krahl2019-01-27
| | | | | | | | | Many of our functions do not return a Result<_, Error>, but for example a Result<_, (Device, Error)>. We only use the typedef in one function, but it makes the other functions more complicated as we have to use result::Result (if crate::Result is imported). Therefore, this patch removes the typedef. Applications or libraries can still redefine it if they want to.
* Remove rand_core::Error from public APIRobin Krahl2019-01-25
| | | | | | | rand_core does not have a stable release yet, and it is unlikely that there will be one soon. To be able to stabilize nitrokey without waiting for a stable rand_core version, we remove the rand_core::Error type from the public API and replace it with a Box<dyn error::Error>.
* Add license and copyright informationRobin Krahl2019-01-23
| | | | | | | This patch adds license and copyright information to all files to make nitrokey-rs compliant with the REUSE practices [0]. [0] https://reuse.software/practices/2.0/
* Implement From<(T: Device, Error)> for ErrorRobin Krahl2019-01-23
| | | | | | Not all users of the authenticate methods want to use the device after an error, so implementing From<(T: Device, Error)> for Error makes it easier for them to discard the device.
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