From e97ccf213eec4e2d056c2f72079e4eeb7ac66f3f Mon Sep 17 00:00:00 2001 From: Robin Krahl Date: Mon, 28 Jan 2019 12:05:42 +0000 Subject: Implement DerefMut for User and Admin As we want to change some methods to take a mutable reference to a Device, we implement DerefMut for User and Admin so that users can obtain a mutable reference to the wrapped device. --- CHANGELOG.md | 2 ++ src/auth.rs | 18 +++++++++++++++--- 2 files changed, 17 insertions(+), 3 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index a9e3065..fcba0f3 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -34,6 +34,8 @@ SPDX-License-Identifier: MIT - Always return a `Result` in functions that communicate with a device. - Combine `get_{major,minor}_firmware_version` into `get_firmware_version`. - Add `set_encrypted_volume_mode` to `Storage`. +- Use mutability to represent changes to the device status: + - Implement `DerefMut` for `User` and `Admin`. # v0.3.4 (2019-01-20) - Fix authentication methods that assumed that `char` is signed. diff --git a/src/auth.rs b/src/auth.rs index 8978f32..8cec49c 100644 --- a/src/auth.rs +++ b/src/auth.rs @@ -1,7 +1,7 @@ // Copyright (C) 2018-2019 Robin Krahl // SPDX-License-Identifier: MIT -use std::ops::Deref; +use std::ops; use std::os::raw::c_char; use std::os::raw::c_int; @@ -211,7 +211,7 @@ impl User { } } -impl Deref for User { +impl ops::Deref for User { type Target = T; fn deref(&self) -> &Self::Target { @@ -219,6 +219,12 @@ impl Deref for User { } } +impl ops::DerefMut for User { + fn deref_mut(&mut self) -> &mut T { + &mut self.device + } +} + impl GenerateOtp for User { fn get_hotp_code(&self, slot: u8) -> Result { result_from_string(unsafe { @@ -246,7 +252,7 @@ impl AuthenticatedDevice for User { } } -impl Deref for Admin { +impl ops::Deref for Admin { type Target = T; fn deref(&self) -> &Self::Target { @@ -254,6 +260,12 @@ impl Deref for Admin { } } +impl ops::DerefMut for Admin { + fn deref_mut(&mut self) -> &mut T { + &mut self.device + } +} + impl Admin { /// Forgets the user authentication and returns an unauthenticated device. This method /// consumes the authenticated device. It does not perform any actual commands on the -- cgit v1.2.3 From eef2118717878f3543248ebf2d099aebbedceacf Mon Sep 17 00:00:00 2001 From: Robin Krahl Date: Wed, 30 Jan 2019 16:02:49 +0000 Subject: Add device_mut method to DeviceWrapper 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. --- CHANGELOG.md | 1 + src/device.rs | 7 +++++++ 2 files changed, 8 insertions(+) diff --git a/CHANGELOG.md b/CHANGELOG.md index fcba0f3..718b796 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -36,6 +36,7 @@ SPDX-License-Identifier: MIT - Add `set_encrypted_volume_mode` to `Storage`. - Use mutability to represent changes to the device status: - Implement `DerefMut` for `User` and `Admin`. + - Add `device_mut` method to `DeviceWrapper`. # v0.3.4 (2019-01-20) - Fix authentication methods that assumed that `char` is signed. diff --git a/src/device.rs b/src/device.rs index c985802..462e9dc 100644 --- a/src/device.rs +++ b/src/device.rs @@ -728,6 +728,13 @@ impl DeviceWrapper { DeviceWrapper::Pro(ref pro) => pro, } } + + fn device_mut(&mut self) -> &mut dyn Device { + match *self { + DeviceWrapper::Storage(ref mut storage) => storage, + DeviceWrapper::Pro(ref mut pro) => pro, + } + } } impl From for DeviceWrapper { -- cgit v1.2.3 From f49e61589e32217f97c94aa86d826f6b65170fba Mon Sep 17 00:00:00 2001 From: Robin Krahl Date: Mon, 28 Jan 2019 12:27:15 +0000 Subject: Require mutable reference if method changes device state 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. --- CHANGELOG.md | 1 + src/auth.rs | 14 ++++----- src/device.rs | 72 ++++++++++++++++++++++---------------------- src/lib.rs | 4 +-- src/otp.rs | 26 ++++++++-------- src/pws.rs | 33 ++++++++++---------- tests/device.rs | 46 +++++++++++++++++----------- tests/otp.rs | 93 ++++++++++++++++++++++++++++----------------------------- tests/pws.rs | 18 +++++++---- 9 files changed, 163 insertions(+), 144 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 718b796..e98e857 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -37,6 +37,7 @@ SPDX-License-Identifier: MIT - Use mutability to represent changes to the device status: - Implement `DerefMut` for `User` and `Admin`. - Add `device_mut` method to `DeviceWrapper`. + - Require a mutable `Device` reference if a method changes the device state. # v0.3.4 (2019-01-20) - Fix authentication methods that assumed that `char` is signed. diff --git a/src/auth.rs b/src/auth.rs index 8cec49c..f9f50fa 100644 --- a/src/auth.rs +++ b/src/auth.rs @@ -226,7 +226,7 @@ impl ops::DerefMut for User { } impl GenerateOtp for User { - fn get_hotp_code(&self, slot: u8) -> Result { + fn get_hotp_code(&mut self, slot: u8) -> Result { result_from_string(unsafe { nitrokey_sys::NK_get_hotp_code_PIN(slot, self.temp_password_ptr()) }) @@ -290,7 +290,7 @@ impl Admin { /// let device = nitrokey::connect()?; /// let config = Config::new(None, None, None, false); /// match device.authenticate_admin("12345678") { - /// Ok(admin) => { + /// Ok(mut admin) => { /// admin.write_config(config); /// () /// }, @@ -301,7 +301,7 @@ impl Admin { /// ``` /// /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot - pub fn write_config(&self, config: Config) -> Result<(), Error> { + pub fn write_config(&mut self, config: Config) -> Result<(), Error> { let raw_config = RawConfig::try_from(config)?; get_command_result(unsafe { nitrokey_sys::NK_write_config( @@ -317,7 +317,7 @@ impl Admin { } impl ConfigureOtp for Admin { - fn write_hotp_slot(&self, data: OtpSlotData, counter: u64) -> Result<(), Error> { + fn write_hotp_slot(&mut self, data: OtpSlotData, counter: u64) -> Result<(), Error> { let raw_data = RawOtpSlotData::new(data)?; get_command_result(unsafe { nitrokey_sys::NK_write_hotp_slot( @@ -334,7 +334,7 @@ impl ConfigureOtp for Admin { }) } - fn write_totp_slot(&self, data: OtpSlotData, time_window: u16) -> Result<(), Error> { + fn write_totp_slot(&mut self, data: OtpSlotData, time_window: u16) -> Result<(), Error> { let raw_data = RawOtpSlotData::new(data)?; get_command_result(unsafe { nitrokey_sys::NK_write_totp_slot( @@ -351,13 +351,13 @@ impl ConfigureOtp for Admin { }) } - fn erase_hotp_slot(&self, slot: u8) -> Result<(), Error> { + fn erase_hotp_slot(&mut self, slot: u8) -> Result<(), Error> { get_command_result(unsafe { nitrokey_sys::NK_erase_hotp_slot(slot, self.temp_password_ptr()) }) } - fn erase_totp_slot(&self, slot: u8) -> Result<(), Error> { + fn erase_totp_slot(&mut self, slot: u8) -> Result<(), Error> { get_command_result(unsafe { nitrokey_sys::NK_erase_totp_slot(slot, self.temp_password_ptr()) }) diff --git a/src/device.rs b/src/device.rs index 462e9dc..f6492cd 100644 --- a/src/device.rs +++ b/src/device.rs @@ -452,7 +452,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.change_admin_pin("12345678", "12345679") { /// Ok(()) => println!("Updated admin PIN."), /// Err(err) => eprintln!("Failed to update admin PIN: {}", err), @@ -463,7 +463,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - fn change_admin_pin(&self, current: &str, new: &str) -> Result<(), Error> { + fn change_admin_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 { @@ -485,7 +485,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.change_user_pin("123456", "123457") { /// Ok(()) => println!("Updated admin PIN."), /// Err(err) => eprintln!("Failed to update admin PIN: {}", err), @@ -496,7 +496,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - fn change_user_pin(&self, current: &str, new: &str) -> Result<(), Error> { + fn change_user_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 { @@ -518,7 +518,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.unlock_user_pin("12345678", "123456") { /// Ok(()) => println!("Unlocked user PIN."), /// Err(err) => eprintln!("Failed to unlock user PIN: {}", err), @@ -529,7 +529,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - fn unlock_user_pin(&self, admin_pin: &str, user_pin: &str) -> Result<(), Error> { + fn unlock_user_pin(&mut self, admin_pin: &str, user_pin: &str) -> Result<(), Error> { let admin_pin_string = get_cstring(admin_pin)?; let user_pin_string = get_cstring(user_pin)?; get_command_result(unsafe { @@ -552,7 +552,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.lock() { /// Ok(()) => println!("Locked the Nitrokey device."), /// Err(err) => eprintln!("Could not lock the Nitrokey device: {}", err), @@ -560,7 +560,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// # Ok(()) /// # } /// ``` - fn lock(&self) -> Result<(), Error> { + fn lock(&mut self) -> Result<(), Error> { get_command_result(unsafe { nitrokey_sys::NK_lock_device() }) } @@ -583,7 +583,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.factory_reset("12345678") { /// Ok(()) => println!("Performed a factory reset."), /// Err(err) => eprintln!("Could not perform a factory reset: {}", err), @@ -593,7 +593,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// ``` /// /// [`build_aes_key`]: #method.build_aes_key - fn factory_reset(&self, admin_pin: &str) -> Result<(), Error> { + fn factory_reset(&mut self, admin_pin: &str) -> Result<(), Error> { let admin_pin_string = get_cstring(admin_pin)?; get_command_result(unsafe { nitrokey_sys::NK_factory_reset(admin_pin_string.as_ptr()) }) } @@ -617,7 +617,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.build_aes_key("12345678") { /// Ok(()) => println!("New AES keys have been built."), /// Err(err) => eprintln!("Could not build new AES keys: {}", err), @@ -627,7 +627,7 @@ pub trait Device: Authenticate + GetPasswordSafe + GenerateOtp + fmt::Debug { /// ``` /// /// [`factory_reset`]: #method.factory_reset - fn build_aes_key(&self, admin_pin: &str) -> Result<(), Error> { + fn build_aes_key(&mut self, admin_pin: &str) -> Result<(), Error> { let admin_pin_string = get_cstring(admin_pin)?; get_command_result(unsafe { nitrokey_sys::NK_build_aes_key(admin_pin_string.as_ptr()) }) } @@ -758,8 +758,8 @@ impl GenerateOtp for DeviceWrapper { self.device().get_totp_slot_name(slot) } - fn get_hotp_code(&self, slot: u8) -> Result { - self.device().get_hotp_code(slot) + fn get_hotp_code(&mut self, slot: u8) -> Result { + self.device_mut().get_hotp_code(slot) } fn get_totp_code(&self, slot: u8) -> Result { @@ -882,7 +882,7 @@ impl Storage { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// match device.change_update_pin("12345678", "87654321") { /// Ok(()) => println!("Updated update PIN."), /// Err(err) => eprintln!("Failed to update update PIN: {}", err), @@ -893,7 +893,7 @@ impl Storage { /// /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - pub fn change_update_pin(&self, current: &str, new: &str) -> Result<(), Error> { + 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 { @@ -919,7 +919,7 @@ impl Storage { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// match device.enable_firmware_update("12345678") { /// Ok(()) => println!("Nitrokey entered update mode."), /// Err(err) => eprintln!("Could not enter update mode: {}", err), @@ -930,7 +930,7 @@ impl Storage { /// /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - pub fn enable_firmware_update(&self, update_pin: &str) -> Result<(), Error> { + 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()) @@ -953,7 +953,7 @@ impl Storage { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// match device.enable_encrypted_volume("123456") { /// Ok(()) => println!("Enabled the encrypted volume."), /// Err(err) => eprintln!("Could not enable the encrypted volume: {}", err), @@ -964,7 +964,7 @@ impl Storage { /// /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - pub fn enable_encrypted_volume(&self, user_pin: &str) -> Result<(), Error> { + 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()) }) } @@ -982,7 +982,7 @@ impl Storage { /// fn use_volume() {} /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// match device.enable_encrypted_volume("123456") { /// Ok(()) => { /// println!("Enabled the encrypted volume."); @@ -999,7 +999,7 @@ impl Storage { /// # Ok(()) /// # } /// ``` - pub fn disable_encrypted_volume(&self) -> Result<(), Error> { + pub fn disable_encrypted_volume(&mut self) -> Result<(), Error> { get_command_result(unsafe { nitrokey_sys::NK_lock_encrypted_volume() }) } @@ -1028,7 +1028,7 @@ impl Storage { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// device.enable_encrypted_volume("123445")?; /// match device.enable_hidden_volume("hidden-pw") { /// Ok(()) => println!("Enabled a hidden volume."), @@ -1041,7 +1041,7 @@ impl Storage { /// [`enable_encrypted_volume`]: #method.enable_encrypted_volume /// [`AesDecryptionFailed`]: enum.CommandError.html#variant.AesDecryptionFailed /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString - pub fn enable_hidden_volume(&self, volume_password: &str) -> Result<(), Error> { + 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()) @@ -1061,7 +1061,7 @@ impl Storage { /// fn use_volume() {} /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// device.enable_encrypted_volume("123445")?; /// match device.enable_hidden_volume("hidden-pw") { /// Ok(()) => { @@ -1079,7 +1079,7 @@ impl Storage { /// # Ok(()) /// # } /// ``` - pub fn disable_hidden_volume(&self) -> Result<(), Error> { + pub fn disable_hidden_volume(&mut self) -> Result<(), Error> { get_command_result(unsafe { nitrokey_sys::NK_lock_hidden_volume() }) } @@ -1108,7 +1108,7 @@ impl Storage { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// device.enable_encrypted_volume("123445")?; /// device.create_hidden_volume(0, 0, 100, "hidden-pw")?; /// # Ok(()) @@ -1118,7 +1118,7 @@ impl Storage { /// [`AesDecryptionFailed`]: enum.CommandError.html#variant.AesDecryptionFailed /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString pub fn create_hidden_volume( - &self, + &mut self, slot: u8, start: u8, end: u8, @@ -1148,7 +1148,7 @@ impl Storage { /// use nitrokey::VolumeMode; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// 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), @@ -1160,7 +1160,7 @@ impl Storage { /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword pub fn set_unencrypted_volume_mode( - &self, + &mut self, admin_pin: &str, mode: VolumeMode, ) -> Result<(), Error> { @@ -1193,7 +1193,7 @@ impl Storage { /// use nitrokey::VolumeMode; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// 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), @@ -1205,7 +1205,7 @@ impl Storage { /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword pub fn set_encrypted_volume_mode( - &self, + &mut self, admin_pin: &str, mode: VolumeMode, ) -> Result<(), Error> { @@ -1322,7 +1322,7 @@ impl Storage { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::Storage::connect()?; + /// let mut device = nitrokey::Storage::connect()?; /// 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), @@ -1333,7 +1333,7 @@ impl Storage { /// /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - pub fn clear_new_sd_card_warning(&self, admin_pin: &str) -> Result<(), Error> { + 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()) @@ -1341,7 +1341,7 @@ impl Storage { } /// Blinks the red and green LED alternatively and infinitely until the device is reconnected. - pub fn wink(&self) -> Result<(), Error> { + pub fn wink(&mut self) -> Result<(), Error> { get_command_result(unsafe { nitrokey_sys::NK_wink() }) } @@ -1361,7 +1361,7 @@ impl Storage { /// /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - pub fn export_firmware(&self, admin_pin: &str) -> Result<(), Error> { + 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()) }) } diff --git a/src/lib.rs b/src/lib.rs index f7da8e1..c35829c 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -47,7 +47,7 @@ //! let device = nitrokey::connect()?; //! let slot_data = OtpSlotData::new(1, "test", "01234567890123456689", OtpMode::SixDigits); //! match device.authenticate_admin("12345678") { -//! Ok(admin) => { +//! Ok(mut admin) => { //! match admin.write_hotp_slot(slot_data, 0) { //! Ok(()) => println!("Successfully wrote slot."), //! Err(err) => eprintln!("Could not write slot: {}", err), @@ -66,7 +66,7 @@ //! # use nitrokey::Error; //! //! # fn try_main() -> Result<(), Error> { -//! let device = nitrokey::connect()?; +//! let mut device = nitrokey::connect()?; //! match device.get_hotp_code(1) { //! Ok(code) => println!("Generated HOTP code: {}", code), //! Err(err) => eprintln!("Could not generate HOTP code: {}", err), diff --git a/src/otp.rs b/src/otp.rs index abaff66..ee142c7 100644 --- a/src/otp.rs +++ b/src/otp.rs @@ -38,7 +38,7 @@ pub trait ConfigureOtp { /// let device = nitrokey::connect()?; /// let slot_data = OtpSlotData::new(1, "test", "01234567890123456689", OtpMode::SixDigits); /// match device.authenticate_admin("12345678") { - /// Ok(admin) => { + /// Ok(mut admin) => { /// match admin.write_hotp_slot(slot_data, 0) { /// Ok(()) => println!("Successfully wrote slot."), /// Err(err) => eprintln!("Could not write slot: {}", err), @@ -53,7 +53,7 @@ pub trait ConfigureOtp { /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`NoName`]: enum.CommandError.html#variant.NoName - fn write_hotp_slot(&self, data: OtpSlotData, counter: u64) -> Result<(), Error>; + fn write_hotp_slot(&mut self, data: OtpSlotData, counter: u64) -> Result<(), Error>; /// Configure a TOTP slot with the given data and set the TOTP time window to the given value /// (default 30). @@ -74,7 +74,7 @@ pub trait ConfigureOtp { /// let device = nitrokey::connect()?; /// let slot_data = OtpSlotData::new(1, "test", "01234567890123456689", OtpMode::EightDigits); /// match device.authenticate_admin("12345678") { - /// Ok(admin) => { + /// Ok(mut admin) => { /// match admin.write_totp_slot(slot_data, 30) { /// Ok(()) => println!("Successfully wrote slot."), /// Err(err) => eprintln!("Could not write slot: {}", err), @@ -89,7 +89,7 @@ pub trait ConfigureOtp { /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`NoName`]: enum.CommandError.html#variant.NoName - fn write_totp_slot(&self, data: OtpSlotData, time_window: u16) -> Result<(), Error>; + fn write_totp_slot(&mut self, data: OtpSlotData, time_window: u16) -> Result<(), Error>; /// Erases an HOTP slot. /// @@ -106,7 +106,7 @@ pub trait ConfigureOtp { /// # fn try_main() -> Result<(), Error> { /// let device = nitrokey::connect()?; /// match device.authenticate_admin("12345678") { - /// Ok(admin) => { + /// Ok(mut admin) => { /// match admin.erase_hotp_slot(1) { /// Ok(()) => println!("Successfully erased slot."), /// Err(err) => eprintln!("Could not erase slot: {}", err), @@ -119,7 +119,7 @@ pub trait ConfigureOtp { /// ``` /// /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot - fn erase_hotp_slot(&self, slot: u8) -> Result<(), Error>; + fn erase_hotp_slot(&mut self, slot: u8) -> Result<(), Error>; /// Erases a TOTP slot. /// @@ -136,7 +136,7 @@ pub trait ConfigureOtp { /// # fn try_main() -> Result<(), Error> { /// let device = nitrokey::connect()?; /// match device.authenticate_admin("12345678") { - /// Ok(admin) => { + /// Ok(mut admin) => { /// match admin.erase_totp_slot(1) { /// Ok(()) => println!("Successfully erased slot."), /// Err(err) => eprintln!("Could not erase slot: {}", err), @@ -149,7 +149,7 @@ pub trait ConfigureOtp { /// ``` /// /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot - fn erase_totp_slot(&self, slot: u8) -> Result<(), Error>; + fn erase_totp_slot(&mut self, slot: u8) -> Result<(), Error>; } /// Provides methods to generate OTP codes and to query OTP slots on a Nitrokey @@ -171,7 +171,7 @@ pub trait GenerateOtp { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let time = time::SystemTime::now().duration_since(time::UNIX_EPOCH); /// match time { /// Ok(time) => device.set_time(time.as_secs(), false)?, @@ -187,7 +187,7 @@ pub trait GenerateOtp { /// /// [`get_totp_code`]: #method.get_totp_code /// [`Timestamp`]: enum.CommandError.html#variant.Timestamp - fn set_time(&self, time: u64, force: bool) -> Result<(), Error> { + fn set_time(&mut self, time: u64, force: bool) -> Result<(), Error> { let result = if force { unsafe { nitrokey_sys::NK_totp_set_time(time) } } else { @@ -270,7 +270,7 @@ pub trait GenerateOtp { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let code = device.get_hotp_code(1)?; /// println!("Generated HOTP code on slot 1: {}", code); /// # Ok(()) @@ -281,7 +281,7 @@ pub trait GenerateOtp { /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot /// [`NotAuthorized`]: enum.CommandError.html#variant.NotAuthorized /// [`SlotNotProgrammed`]: enum.CommandError.html#variant.SlotNotProgrammed - fn get_hotp_code(&self, slot: u8) -> Result { + fn get_hotp_code(&mut self, slot: u8) -> Result { result_from_string(unsafe { nitrokey_sys::NK_get_hotp_code(slot) }) } @@ -305,7 +305,7 @@ pub trait GenerateOtp { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let time = time::SystemTime::now().duration_since(time::UNIX_EPOCH); /// match time { /// Ok(time) => { diff --git a/src/pws.rs b/src/pws.rs index 1e27935..371de6e 100644 --- a/src/pws.rs +++ b/src/pws.rs @@ -43,9 +43,10 @@ pub const SLOT_COUNT: u8 = 16; /// } /// /// # fn try_main() -> Result<(), Error> { -/// let device = nitrokey::connect()?; +/// let mut device = nitrokey::connect()?; /// let pws = device.get_password_safe("123456")?; /// use_password_safe(&pws); +/// drop(pws); /// device.lock()?; /// # Ok(()) /// # } @@ -97,14 +98,14 @@ pub trait GetPasswordSafe { /// fn use_password_safe(pws: &PasswordSafe) {} /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.get_password_safe("123456") { /// Ok(pws) => { /// use_password_safe(&pws); - /// device.lock()?; /// }, /// Err(err) => eprintln!("Could not open the password safe: {}", err), /// }; + /// device.lock()?; /// # Ok(()) /// # } /// ``` @@ -116,7 +117,7 @@ pub trait GetPasswordSafe { /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`Unknown`]: enum.CommandError.html#variant.Unknown /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - fn get_password_safe(&self, user_pin: &str) -> Result, Error>; + fn get_password_safe(&mut self, user_pin: &str) -> Result, Error>; } fn get_password_safe<'a>( @@ -148,7 +149,7 @@ impl<'a> PasswordSafe<'a> { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let pws = device.get_password_safe("123456")?; /// pws.get_slot_status()?.iter().enumerate().for_each(|(slot, programmed)| { /// let status = match *programmed { @@ -193,7 +194,7 @@ impl<'a> PasswordSafe<'a> { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.get_password_safe("123456") { /// Ok(pws) => { /// let name = pws.get_slot_name(0)?; @@ -230,7 +231,7 @@ impl<'a> PasswordSafe<'a> { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let pws = device.get_password_safe("123456")?; /// let name = pws.get_slot_name(0)?; /// let login = pws.get_slot_login(0)?; @@ -263,7 +264,7 @@ impl<'a> PasswordSafe<'a> { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let pws = device.get_password_safe("123456")?; /// let name = pws.get_slot_name(0)?; /// let login = pws.get_slot_login(0)?; @@ -294,7 +295,7 @@ impl<'a> PasswordSafe<'a> { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let pws = device.get_password_safe("123456")?; /// let name = pws.get_slot_name(0)?; /// let login = pws.get_slot_login(0)?; @@ -307,7 +308,7 @@ impl<'a> PasswordSafe<'a> { /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString pub fn write_slot( - &self, + &mut self, slot: u8, name: &str, login: &str, @@ -340,8 +341,8 @@ impl<'a> PasswordSafe<'a> { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; - /// let pws = device.get_password_safe("123456")?; + /// let mut device = nitrokey::connect()?; + /// let mut pws = device.get_password_safe("123456")?; /// match pws.erase_slot(0) { /// Ok(()) => println!("Erased slot 0."), /// Err(err) => eprintln!("Could not erase slot 0: {}", err), @@ -351,7 +352,7 @@ impl<'a> PasswordSafe<'a> { /// ``` /// /// [`InvalidSlot`]: enum.LibraryError.html#variant.InvalidSlot - pub fn erase_slot(&self, slot: u8) -> Result<(), Error> { + pub fn erase_slot(&mut self, slot: u8) -> Result<(), Error> { get_command_result(unsafe { nitrokey_sys::NK_erase_password_safe_slot(slot) }) } } @@ -364,19 +365,19 @@ impl<'a> Drop for PasswordSafe<'a> { } impl GetPasswordSafe for Pro { - fn get_password_safe(&self, user_pin: &str) -> Result, Error> { + fn get_password_safe(&mut self, user_pin: &str) -> Result, Error> { get_password_safe(self, user_pin) } } impl GetPasswordSafe for Storage { - fn get_password_safe(&self, user_pin: &str) -> Result, Error> { + fn get_password_safe(&mut self, user_pin: &str) -> Result, Error> { get_password_safe(self, user_pin) } } impl GetPasswordSafe for DeviceWrapper { - fn get_password_safe(&self, user_pin: &str) -> Result, Error> { + fn get_password_safe(&mut self, user_pin: &str) -> Result, Error> { get_password_safe(self, user_pin) } } diff --git a/tests/device.rs b/tests/device.rs index 969a7df..7a69214 100644 --- a/tests/device.rs +++ b/tests/device.rs @@ -133,7 +133,7 @@ fn get_retry_count(device: DeviceWrapper) { #[test_device] fn config(device: DeviceWrapper) { - let admin = unwrap_ok!(device.authenticate_admin(ADMIN_PASSWORD)); + let mut admin = unwrap_ok!(device.authenticate_admin(ADMIN_PASSWORD)); let config = Config::new(None, None, None, true); assert_ok!((), admin.write_config(config)); @@ -156,6 +156,7 @@ fn change_user_pin(device: DeviceWrapper) { let device = device.authenticate_user(USER_PASSWORD).unwrap().device(); let device = device.authenticate_user(USER_NEW_PASSWORD).unwrap_err().0; + let mut device = device; assert_ok!((), device.change_user_pin(USER_PASSWORD, USER_NEW_PASSWORD)); let device = device.authenticate_user(USER_PASSWORD).unwrap_err().0; @@ -164,6 +165,7 @@ fn change_user_pin(device: DeviceWrapper) { .unwrap() .device(); + let mut device = device; let result = device.change_user_pin(USER_PASSWORD, USER_PASSWORD); assert_cmd_err!(CommandError::WrongPassword, result); @@ -176,7 +178,7 @@ fn change_user_pin(device: DeviceWrapper) { #[test_device] fn change_admin_pin(device: DeviceWrapper) { let device = device.authenticate_admin(ADMIN_PASSWORD).unwrap().device(); - let device = device.authenticate_admin(ADMIN_NEW_PASSWORD).unwrap_err().0; + let mut device = device.authenticate_admin(ADMIN_NEW_PASSWORD).unwrap_err().0; assert_ok!( (), @@ -184,7 +186,7 @@ fn change_admin_pin(device: DeviceWrapper) { ); let device = device.authenticate_admin(ADMIN_PASSWORD).unwrap_err().0; - let device = device + let mut device = device .authenticate_admin(ADMIN_NEW_PASSWORD) .unwrap() .device(); @@ -220,7 +222,7 @@ where #[test_device] fn unlock_user_pin(device: DeviceWrapper) { - let device = device.authenticate_user(USER_PASSWORD).unwrap().device(); + let mut device = device.authenticate_user(USER_PASSWORD).unwrap().device(); assert_ok!((), device.unlock_user_pin(ADMIN_PASSWORD, USER_PASSWORD)); assert_cmd_err!( CommandError::WrongPassword, @@ -232,7 +234,7 @@ fn unlock_user_pin(device: DeviceWrapper) { let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); - let device = require_failed_user_login(device, USER_PASSWORD, CommandError::WrongPassword); + let mut device = require_failed_user_login(device, USER_PASSWORD, CommandError::WrongPassword); // unblock with current PIN assert_cmd_err!( @@ -246,7 +248,7 @@ fn unlock_user_pin(device: DeviceWrapper) { let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); - let device = require_failed_user_login(device, USER_PASSWORD, CommandError::WrongPassword); + let mut device = require_failed_user_login(device, USER_PASSWORD, CommandError::WrongPassword); // unblock with new PIN assert_cmd_err!( @@ -272,12 +274,12 @@ fn assert_utf8_err_or_ne(left: &str, right: Result) { #[test_device] fn factory_reset(device: DeviceWrapper) { - let admin = unwrap_ok!(device.authenticate_admin(ADMIN_PASSWORD)); + let mut admin = unwrap_ok!(device.authenticate_admin(ADMIN_PASSWORD)); let otp_data = OtpSlotData::new(1, "test", "0123468790", OtpMode::SixDigits); assert_ok!((), admin.write_totp_slot(otp_data, 30)); - let device = admin.device(); - let pws = unwrap_ok!(device.get_password_safe(USER_PASSWORD)); + let mut device = admin.device(); + let mut pws = unwrap_ok!(device.get_password_safe(USER_PASSWORD)); assert_ok!((), pws.write_slot(0, "test", "testlogin", "testpw")); drop(pws); @@ -302,18 +304,20 @@ fn factory_reset(device: DeviceWrapper) { let user = unwrap_ok!(device.authenticate_user(USER_PASSWORD)); assert_cmd_err!(CommandError::SlotNotProgrammed, user.get_totp_slot_name(1)); - let device = user.device(); + let mut device = user.device(); let pws = unwrap_ok!(device.get_password_safe(USER_PASSWORD)); assert_utf8_err_or_ne("test", pws.get_slot_name(0)); assert_utf8_err_or_ne("testlogin", pws.get_slot_login(0)); assert_utf8_err_or_ne("testpw", pws.get_slot_password(0)); + drop(pws); assert_ok!((), device.build_aes_key(ADMIN_PASSWORD)); } #[test_device] fn build_aes_key(device: DeviceWrapper) { - let pws = unwrap_ok!(device.get_password_safe(USER_PASSWORD)); + let mut device = device; + let mut pws = unwrap_ok!(device.get_password_safe(USER_PASSWORD)); assert_ok!((), pws.write_slot(0, "test", "testlogin", "testpw")); drop(pws); @@ -323,7 +327,7 @@ fn build_aes_key(device: DeviceWrapper) { ); assert_ok!((), device.build_aes_key(ADMIN_PASSWORD)); - let device = device.authenticate_admin(ADMIN_PASSWORD).unwrap().device(); + let mut device = device.authenticate_admin(ADMIN_PASSWORD).unwrap().device(); let pws = unwrap_ok!(device.get_password_safe(USER_PASSWORD)); assert_utf8_err_or_ne("test", pws.get_slot_name(0)); @@ -333,6 +337,7 @@ fn build_aes_key(device: DeviceWrapper) { #[test_device] fn change_update_pin(device: Storage) { + let mut device = device; assert_cmd_err!( CommandError::WrongPassword, device.change_update_pin(UPDATE_NEW_PIN, UPDATE_PIN) @@ -343,6 +348,7 @@ fn change_update_pin(device: Storage) { #[test_device] fn encrypted_volume(device: Storage) { + let mut device = device; assert_ok!((), device.lock()); assert_eq!(1, count_nitrokey_block_devices()); @@ -361,6 +367,7 @@ fn encrypted_volume(device: Storage) { #[test_device] fn hidden_volume(device: Storage) { + let mut device = device; assert_ok!((), device.lock()); assert_eq!(1, count_nitrokey_block_devices()); @@ -396,6 +403,7 @@ fn hidden_volume(device: Storage) { #[test_device] fn lock(device: Storage) { + let mut device = device; assert_ok!((), device.enable_encrypted_volume(USER_PASSWORD)); assert_ok!((), device.lock()); assert_eq!(1, count_nitrokey_block_devices()); @@ -405,6 +413,7 @@ fn lock(device: Storage) { fn set_encrypted_volume_mode(device: Storage) { // This test case does not check the device status as the command only works with firmware // version 0.49. For later versions, it does not do anything and always returns Ok(()). + let mut device = device; assert_ok!( (), @@ -441,12 +450,13 @@ fn set_unencrypted_volume_mode(device: Storage) { ); } - fn assert_success(device: &Storage, mode: VolumeMode) { + fn assert_success(device: &mut Storage, mode: VolumeMode) { assert_ok!((), device.set_unencrypted_volume_mode(ADMIN_PASSWORD, mode)); assert_mode(&device, mode); } - assert_success(&device, VolumeMode::ReadOnly); + let mut device = device; + assert_success(&mut device, VolumeMode::ReadOnly); assert_cmd_err!( CommandError::WrongPassword, @@ -454,9 +464,9 @@ fn set_unencrypted_volume_mode(device: Storage) { ); assert_mode(&device, VolumeMode::ReadOnly); - assert_success(&device, VolumeMode::ReadWrite); - assert_success(&device, VolumeMode::ReadWrite); - assert_success(&device, VolumeMode::ReadOnly); + assert_success(&mut device, VolumeMode::ReadWrite); + assert_success(&mut device, VolumeMode::ReadWrite); + assert_success(&mut device, VolumeMode::ReadOnly); } #[test_device] @@ -488,6 +498,7 @@ fn get_production_info(device: Storage) { #[test_device] fn clear_new_sd_card_warning(device: Storage) { + let mut device = device; assert_ok!((), device.factory_reset(ADMIN_PASSWORD)); thread::sleep(time::Duration::from_secs(3)); assert_ok!((), device.build_aes_key(ADMIN_PASSWORD)); @@ -506,6 +517,7 @@ fn clear_new_sd_card_warning(device: Storage) { #[test_device] fn export_firmware(device: Storage) { + let mut device = device; assert_cmd_err!( CommandError::WrongPassword, device.export_firmware("someadminpn") diff --git a/tests/otp.rs b/tests/otp.rs index fc0e79e..28a8d7c 100644 --- a/tests/otp.rs +++ b/tests/otp.rs @@ -4,7 +4,7 @@ mod util; use std::fmt::Debug; -use std::ops::Deref; +use std::ops::DerefMut; use nitrokey::{ Admin, Authenticate, CommandError, Config, ConfigureOtp, Device, GenerateOtp, LibraryError, @@ -48,12 +48,12 @@ where .expect("Could not login as admin.") } -fn configure_hotp(admin: &ConfigureOtp, counter: u8) { +fn configure_hotp(admin: &mut ConfigureOtp, counter: u8) { let slot_data = OtpSlotData::new(1, "test-hotp", HOTP_SECRET, OtpMode::SixDigits); assert_ok!((), admin.write_hotp_slot(slot_data, counter.into())); } -fn check_hotp_codes(device: &GenerateOtp, offset: u8) { +fn check_hotp_codes(device: &mut GenerateOtp, offset: u8) { HOTP_CODES.iter().enumerate().for_each(|(i, code)| { if i >= offset as usize { assert_ok!(code.to_string(), device.get_hotp_code(1)); @@ -63,6 +63,7 @@ fn check_hotp_codes(device: &GenerateOtp, offset: u8) { #[test_device] fn set_time(device: DeviceWrapper) { + let mut device = device; assert_ok!((), device.set_time(1546385382, true)); assert_ok!((), device.set_time(1546385392, false)); assert_cmd_err!(CommandError::Timestamp, device.set_time(1546385292, false)); @@ -71,36 +72,36 @@ fn set_time(device: DeviceWrapper) { #[test_device] fn hotp_no_pin(device: DeviceWrapper) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); - configure_hotp(&admin, 0); - check_hotp_codes(admin.deref(), 0); + configure_hotp(&mut admin, 0); + check_hotp_codes(admin.deref_mut(), 0); - configure_hotp(&admin, 5); - check_hotp_codes(admin.deref(), 5); + configure_hotp(&mut admin, 5); + check_hotp_codes(admin.deref_mut(), 5); - configure_hotp(&admin, 0); - check_hotp_codes(&admin.device(), 0); + configure_hotp(&mut admin, 0); + check_hotp_codes(&mut admin.device(), 0); } #[test_device] fn hotp_pin(device: DeviceWrapper) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let config = Config::new(None, None, None, true); assert_ok!((), admin.write_config(config)); - configure_hotp(&admin, 0); - let user = unwrap_ok!(admin.device().authenticate_user(USER_PASSWORD)); - check_hotp_codes(&user, 0); + configure_hotp(&mut admin, 0); + let mut user = unwrap_ok!(admin.device().authenticate_user(USER_PASSWORD)); + check_hotp_codes(&mut user, 0); assert_cmd_err!(CommandError::NotAuthorized, user.device().get_hotp_code(1)); } #[test_device] fn hotp_slot_name(device: DeviceWrapper) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let slot_data = OtpSlotData::new(1, "test-hotp", HOTP_SECRET, OtpMode::SixDigits); assert_ok!((), admin.write_hotp_slot(slot_data, 0)); @@ -111,7 +112,7 @@ fn hotp_slot_name(device: DeviceWrapper) { #[test_device] fn hotp_error(device: DeviceWrapper) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let slot_data = OtpSlotData::new(1, "", HOTP_SECRET, OtpMode::SixDigits); assert_cmd_err!(CommandError::NoName, admin.write_hotp_slot(slot_data, 0)); let slot_data = OtpSlotData::new(4, "test", HOTP_SECRET, OtpMode::SixDigits); @@ -130,7 +131,7 @@ fn hotp_error(device: DeviceWrapper) { #[test_device] fn hotp_erase(device: DeviceWrapper) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); let slot_data = OtpSlotData::new(1, "test1", HOTP_SECRET, OtpMode::SixDigits); @@ -140,7 +141,7 @@ fn hotp_erase(device: DeviceWrapper) { assert_ok!((), admin.erase_hotp_slot(1)); - let device = admin.device(); + let mut device = admin.device(); let result = device.get_hotp_slot_name(1); assert_cmd_err!(CommandError::SlotNotProgrammed, result); let result = device.get_hotp_code(1); @@ -149,13 +150,13 @@ fn hotp_erase(device: DeviceWrapper) { assert_ok!("test2".to_string(), device.get_hotp_slot_name(2)); } -fn configure_totp(admin: &ConfigureOtp, factor: u64) { +fn configure_totp(admin: &mut ConfigureOtp, factor: u64) { let slot_data = OtpSlotData::new(1, "test-totp", TOTP_SECRET, OtpMode::EightDigits); let time_window = 30u64.checked_mul(factor).unwrap(); assert_ok!((), admin.write_totp_slot(slot_data, time_window as u16)); } -fn check_totp_codes(device: &GenerateOtp, factor: u64, timestamp_size: TotpTimestampSize) { +fn check_totp_codes(device: &mut GenerateOtp, factor: u64, timestamp_size: TotpTimestampSize) { for (base_time, codes) in TOTP_CODES { let time = base_time.checked_mul(factor).unwrap(); let is_u64 = time > u32::max_value() as u64; @@ -177,49 +178,47 @@ fn check_totp_codes(device: &GenerateOtp, factor: u64, timestamp_size: TotpTimes #[test_device] fn totp_no_pin(device: DeviceWrapper) { - // TODO: this test may fail due to bad timing --> find solution - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); - configure_totp(&admin, 1); - check_totp_codes(admin.deref(), 1, TotpTimestampSize::U32); + configure_totp(&mut admin, 1); + check_totp_codes(admin.deref_mut(), 1, TotpTimestampSize::U32); - configure_totp(&admin, 2); - check_totp_codes(admin.deref(), 2, TotpTimestampSize::U32); + configure_totp(&mut admin, 2); + check_totp_codes(admin.deref_mut(), 2, TotpTimestampSize::U32); - configure_totp(&admin, 1); - check_totp_codes(&admin.device(), 1, TotpTimestampSize::U32); + configure_totp(&mut admin, 1); + check_totp_codes(&mut admin.device(), 1, TotpTimestampSize::U32); } #[test_device] // Nitrokey Storage does only support timestamps that fit in a 32-bit // unsigned integer, so don't test with it. fn totp_no_pin_64(device: Pro) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); - configure_totp(&admin, 1); - check_totp_codes(admin.deref(), 1, TotpTimestampSize::U64); + configure_totp(&mut admin, 1); + check_totp_codes(admin.deref_mut(), 1, TotpTimestampSize::U64); - configure_totp(&admin, 2); - check_totp_codes(admin.deref(), 2, TotpTimestampSize::U64); + configure_totp(&mut admin, 2); + check_totp_codes(admin.deref_mut(), 2, TotpTimestampSize::U64); - configure_totp(&admin, 1); - check_totp_codes(&admin.device(), 1, TotpTimestampSize::U64); + configure_totp(&mut admin, 1); + check_totp_codes(&mut admin.device(), 1, TotpTimestampSize::U64); } #[test_device] fn totp_pin(device: DeviceWrapper) { - // TODO: this test may fail due to bad timing --> find solution - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let config = Config::new(None, None, None, true); assert_ok!((), admin.write_config(config)); - configure_totp(&admin, 1); - let user = unwrap_ok!(admin.device().authenticate_user(USER_PASSWORD)); - check_totp_codes(&user, 1, TotpTimestampSize::U32); + configure_totp(&mut admin, 1); + let mut user = unwrap_ok!(admin.device().authenticate_user(USER_PASSWORD)); + check_totp_codes(&mut user, 1, TotpTimestampSize::U32); assert_cmd_err!(CommandError::NotAuthorized, user.device().get_totp_code(1)); } @@ -227,20 +226,20 @@ fn totp_pin(device: DeviceWrapper) { #[test_device] // See comment for totp_no_pin_64. fn totp_pin_64(device: Pro) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let config = Config::new(None, None, None, true); assert_ok!((), admin.write_config(config)); - configure_totp(&admin, 1); - let user = unwrap_ok!(admin.device().authenticate_user(USER_PASSWORD)); - check_totp_codes(&user, 1, TotpTimestampSize::U64); + configure_totp(&mut admin, 1); + let mut user = unwrap_ok!(admin.device().authenticate_user(USER_PASSWORD)); + check_totp_codes(&mut user, 1, TotpTimestampSize::U64); assert_cmd_err!(CommandError::NotAuthorized, user.device().get_totp_code(1)); } #[test_device] fn totp_slot_name(device: DeviceWrapper) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let slot_data = OtpSlotData::new(1, "test-totp", TOTP_SECRET, OtpMode::EightDigits); assert_ok!((), admin.write_totp_slot(slot_data, 0)); @@ -253,7 +252,7 @@ fn totp_slot_name(device: DeviceWrapper) { #[test_device] fn totp_error(device: DeviceWrapper) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let slot_data = OtpSlotData::new(1, "", TOTP_SECRET, OtpMode::SixDigits); assert_cmd_err!(CommandError::NoName, admin.write_totp_slot(slot_data, 0)); let slot_data = OtpSlotData::new(20, "test", TOTP_SECRET, OtpMode::SixDigits); @@ -272,7 +271,7 @@ fn totp_error(device: DeviceWrapper) { #[test_device] fn totp_erase(device: DeviceWrapper) { - let admin = make_admin_test_device(device); + let mut admin = make_admin_test_device(device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); let slot_data = OtpSlotData::new(1, "test1", TOTP_SECRET, OtpMode::SixDigits); diff --git a/tests/pws.rs b/tests/pws.rs index 32dc8f7..7805803 100644 --- a/tests/pws.rs +++ b/tests/pws.rs @@ -33,7 +33,7 @@ fn get_slot_name_direct(slot: u8) -> Result { } } -fn get_pws(device: &T) -> PasswordSafe +fn get_pws(device: &mut T) -> PasswordSafe where T: Device, { @@ -42,6 +42,7 @@ where #[test_device] fn enable(device: DeviceWrapper) { + let mut device = device; assert_cmd_err!( CommandError::WrongPassword, device.get_password_safe(&(USER_PASSWORD.to_owned() + "123")) @@ -56,8 +57,9 @@ fn enable(device: DeviceWrapper) { #[test_device] fn drop(device: DeviceWrapper) { + let mut device = device; { - let pws = get_pws(&device); + let mut pws = get_pws(&mut device); assert_ok!((), pws.write_slot(1, "name", "login", "password")); assert_ok!("name".to_string(), pws.get_slot_name(1)); let result = get_slot_name_direct(1); @@ -72,7 +74,8 @@ fn drop(device: DeviceWrapper) { #[test_device] fn get_status(device: DeviceWrapper) { - let pws = get_pws(&device); + let mut device = device; + let mut pws = get_pws(&mut device); for i in 0..SLOT_COUNT { assert_ok!((), pws.erase_slot(i)); } @@ -93,7 +96,8 @@ fn get_status(device: DeviceWrapper) { #[test_device] fn get_data(device: DeviceWrapper) { - let pws = get_pws(&device); + let mut device = device; + let mut pws = get_pws(&mut device); assert_ok!((), pws.write_slot(1, "name", "login", "password")); assert_ok!("name".to_string(), pws.get_slot_name(1)); assert_ok!("login".to_string(), pws.get_slot_login(1)); @@ -119,7 +123,8 @@ fn get_data(device: DeviceWrapper) { #[test_device] fn write(device: DeviceWrapper) { - let pws = get_pws(&device); + let mut device = device; + let mut pws = get_pws(&mut device); assert_lib_err!( LibraryError::InvalidSlot, @@ -144,7 +149,8 @@ fn write(device: DeviceWrapper) { #[test_device] fn erase(device: DeviceWrapper) { - let pws = get_pws(&device); + let mut device = device; + let mut pws = get_pws(&mut device); assert_lib_err!(LibraryError::InvalidSlot, pws.erase_slot(SLOT_COUNT)); assert_ok!((), pws.write_slot(0, "name", "login", "password")); -- cgit v1.2.3 From 0972bbe82623c3d9649b6023d8f50d304aa0cde6 Mon Sep 17 00:00:00 2001 From: Robin Krahl Date: Mon, 28 Jan 2019 14:24:12 +0000 Subject: Refactor User and Admin to use a mutable reference MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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. --- CHANGELOG.md | 2 + src/auth.rs | 183 ++++++++++++++++-------------------------------------- src/device.rs | 42 ++++--------- src/lib.rs | 4 +- src/otp.rs | 16 ++--- tests/device.rs | 137 ++++++++++++++++++++-------------------- tests/otp.rs | 66 +++++++++++--------- tests/util/mod.rs | 12 ++-- 8 files changed, 185 insertions(+), 277 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index e98e857..8e6cb9c 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -38,6 +38,8 @@ SPDX-License-Identifier: MIT - Implement `DerefMut` for `User` and `Admin`. - Add `device_mut` method to `DeviceWrapper`. - Require a mutable `Device` reference if a method changes the device state. +- Let `Admin` and `User` store a mutable reference to the `Device` instead of + the `Device` value. # v0.3.4 (2019-01-20) - Fix authentication methods that assumed that `char` is signed. diff --git a/src/auth.rs b/src/auth.rs index f9f50fa..573fed3 100644 --- a/src/auth.rs +++ b/src/auth.rs @@ -42,16 +42,10 @@ pub trait Authenticate { /// fn perform_other_task(device: &DeviceWrapper) {} /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; - /// 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 - /// }, + /// let mut device = nitrokey::connect()?; + /// match device.authenticate_user("123456") { + /// Ok(user) => perform_user_task(&user), + /// Err(err) => eprintln!("Could not authenticate as user: {}", err), /// }; /// perform_other_task(&device); /// # Ok(()) @@ -61,9 +55,9 @@ pub trait Authenticate { /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`RngError`]: enum.CommandError.html#variant.RngError /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - fn authenticate_user(self, password: &str) -> Result, (Self, Error)> + fn authenticate_user(&mut self, password: &str) -> Result, Error> where - Self: Device + Sized; + Self: Device + std::marker::Sized; /// Performs admin authentication. This method consumes the device. If successful, an /// authenticated device is returned. Otherwise, the current unauthenticated device and the @@ -88,16 +82,10 @@ pub trait Authenticate { /// fn perform_other_task(device: &DeviceWrapper) {} /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; - /// let device = match device.authenticate_admin("123456") { - /// Ok(admin) => { - /// perform_admin_task(&admin); - /// admin.device() - /// }, - /// Err((device, err)) => { - /// eprintln!("Could not authenticate as admin: {}", err); - /// device - /// }, + /// let mut device = nitrokey::connect()?; + /// match device.authenticate_admin("123456") { + /// Ok(admin) => perform_admin_task(&admin), + /// Err(err) => eprintln!("Could not authenticate as admin: {}", err), /// }; /// perform_other_task(&device); /// # Ok(()) @@ -107,13 +95,13 @@ pub trait Authenticate { /// [`InvalidString`]: enum.LibraryError.html#variant.InvalidString /// [`RngError`]: enum.CommandError.html#variant.RngError /// [`WrongPassword`]: enum.CommandError.html#variant.WrongPassword - fn authenticate_admin(self, password: &str) -> Result, (Self, Error)> + fn authenticate_admin(&mut self, password: &str) -> Result, Error> where - Self: Device + Sized; + Self: Device + std::marker::Sized; } -trait AuthenticatedDevice { - fn new(device: T, temp_password: Vec) -> Self; +trait AuthenticatedDevice<'a, T> { + fn new(device: &'a mut T, temp_password: Vec) -> Self; fn temp_password_ptr(&self) -> *const c_char; } @@ -128,8 +116,8 @@ trait AuthenticatedDevice { /// [`authenticate_admin`]: trait.Authenticate.html#method.authenticate_admin /// [`device`]: #method.device #[derive(Debug)] -pub struct User { - device: T, +pub struct User<'a, T: Device> { + device: &'a mut T, temp_password: Vec, } @@ -143,89 +131,42 @@ pub struct User { /// [`authenticate_admin`]: trait.Authenticate.html#method.authenticate_admin /// [`device`]: #method.device #[derive(Debug)] -pub struct Admin { - device: T, +pub struct Admin<'a, T: Device> { + device: &'a mut T, temp_password: Vec, } -fn authenticate(device: D, password: &str, callback: T) -> Result +fn authenticate<'a, D, A, T>(device: &'a mut D, password: &str, callback: T) -> Result where D: Device, - A: AuthenticatedDevice, + A: AuthenticatedDevice<'a, D>, T: Fn(*const c_char, *const c_char) -> c_int, { - let temp_password = match generate_password(TEMPORARY_PASSWORD_LENGTH) { - Ok(temp_password) => temp_password, - Err(err) => return Err((device, err)), - }; - let password = match get_cstring(password) { - Ok(password) => password, - Err(err) => return Err((device, err)), - }; + let temp_password = generate_password(TEMPORARY_PASSWORD_LENGTH)?; + let password = get_cstring(password)?; let password_ptr = password.as_ptr(); let temp_password_ptr = temp_password.as_ptr() as *const c_char; match callback(password_ptr, temp_password_ptr) { 0 => Ok(A::new(device, temp_password)), - rv => Err((device, Error::from(rv))), + rv => Err(Error::from(rv)), } } -fn authenticate_user_wrapper( - device: T, - constructor: C, - password: &str, -) -> Result, (DeviceWrapper, Error)> -where - T: Device, - C: Fn(T) -> DeviceWrapper, -{ - let result = device.authenticate_user(password); - match result { - Ok(user) => Ok(User::new(constructor(user.device), user.temp_password)), - Err((device, err)) => Err((constructor(device), err)), - } -} - -fn authenticate_admin_wrapper( - device: T, - constructor: C, - password: &str, -) -> Result, (DeviceWrapper, Error)> -where - T: Device, - C: Fn(T) -> DeviceWrapper, -{ - let result = device.authenticate_admin(password); - match result { - Ok(user) => Ok(Admin::new(constructor(user.device), user.temp_password)), - Err((device, err)) => Err((constructor(device), err)), - } -} - -impl User { - /// Forgets the user authentication and returns an unauthenticated device. This method - /// consumes the authenticated device. It does not perform any actual commands on the - /// Nitrokey. - pub fn device(self) -> T { - self.device - } -} - -impl ops::Deref for User { +impl<'a, T: Device> ops::Deref for User<'a, T> { type Target = T; fn deref(&self) -> &Self::Target { - &self.device + self.device } } -impl ops::DerefMut for User { +impl<'a, T: Device> ops::DerefMut for User<'a, T> { fn deref_mut(&mut self) -> &mut T { - &mut self.device + self.device } } -impl GenerateOtp for User { +impl<'a, T: Device> GenerateOtp for User<'a, T> { fn get_hotp_code(&mut self, slot: u8) -> Result { result_from_string(unsafe { nitrokey_sys::NK_get_hotp_code_PIN(slot, self.temp_password_ptr()) @@ -239,8 +180,8 @@ impl GenerateOtp for User { } } -impl AuthenticatedDevice for User { - fn new(device: T, temp_password: Vec) -> Self { +impl<'a, T: Device> AuthenticatedDevice<'a, T> for User<'a, T> { + fn new(device: &'a mut T, temp_password: Vec) -> Self { User { device, temp_password, @@ -252,28 +193,21 @@ impl AuthenticatedDevice for User { } } -impl ops::Deref for Admin { +impl<'a, T: Device> ops::Deref for Admin<'a, T> { type Target = T; fn deref(&self) -> &Self::Target { - &self.device + self.device } } -impl ops::DerefMut for Admin { +impl<'a, T: Device> ops::DerefMut for Admin<'a, T> { fn deref_mut(&mut self) -> &mut T { - &mut self.device - } -} - -impl Admin { - /// Forgets the user authentication and returns an unauthenticated device. This method - /// consumes the authenticated device. It does not perform any actual commands on the - /// Nitrokey. - pub fn device(self) -> T { self.device } +} +impl<'a, T: Device> Admin<'a, T> { /// Writes the given configuration to the Nitrokey device. /// /// # Errors @@ -287,14 +221,11 @@ impl Admin { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let config = Config::new(None, None, None, false); /// match device.authenticate_admin("12345678") { - /// Ok(mut admin) => { - /// admin.write_config(config); - /// () - /// }, - /// Err((_, err)) => eprintln!("Could not authenticate as admin: {}", err), + /// Ok(mut admin) => admin.write_config(config)?, + /// Err(err) => eprintln!("Could not authenticate as admin: {}", err), /// }; /// # Ok(()) /// # } @@ -316,7 +247,7 @@ impl Admin { } } -impl ConfigureOtp for Admin { +impl<'a, T: Device> ConfigureOtp for Admin<'a, T> { fn write_hotp_slot(&mut self, data: OtpSlotData, counter: u64) -> Result<(), Error> { let raw_data = RawOtpSlotData::new(data)?; get_command_result(unsafe { @@ -364,8 +295,8 @@ impl ConfigureOtp for Admin { } } -impl AuthenticatedDevice for Admin { - fn new(device: T, temp_password: Vec) -> Self { +impl<'a, T: Device> AuthenticatedDevice<'a, T> for Admin<'a, T> { + fn new(device: &'a mut T, temp_password: Vec) -> Self { Admin { device, temp_password, @@ -378,35 +309,27 @@ impl AuthenticatedDevice for Admin { } impl Authenticate for DeviceWrapper { - fn authenticate_user(self, password: &str) -> Result, (Self, Error)> { - match self { - DeviceWrapper::Storage(storage) => { - authenticate_user_wrapper(storage, DeviceWrapper::Storage, password) - } - DeviceWrapper::Pro(pro) => authenticate_user_wrapper(pro, DeviceWrapper::Pro, password), - } + fn authenticate_user(&mut self, password: &str) -> Result, Error> { + authenticate(self, password, |password_ptr, temp_password_ptr| unsafe { + nitrokey_sys::NK_user_authenticate(password_ptr, temp_password_ptr) + }) } - fn authenticate_admin(self, password: &str) -> Result, (Self, Error)> { - match self { - DeviceWrapper::Storage(storage) => { - authenticate_admin_wrapper(storage, DeviceWrapper::Storage, password) - } - DeviceWrapper::Pro(pro) => { - authenticate_admin_wrapper(pro, DeviceWrapper::Pro, password) - } - } + fn authenticate_admin(&mut self, password: &str) -> Result, Error> { + authenticate(self, password, |password_ptr, temp_password_ptr| unsafe { + nitrokey_sys::NK_user_authenticate(password_ptr, temp_password_ptr) + }) } } impl Authenticate for Pro { - fn authenticate_user(self, password: &str) -> Result, (Self, Error)> { + fn authenticate_user(&mut self, password: &str) -> Result, Error> { authenticate(self, password, |password_ptr, temp_password_ptr| unsafe { nitrokey_sys::NK_user_authenticate(password_ptr, temp_password_ptr) }) } - fn authenticate_admin(self, password: &str) -> Result, (Self, Error)> { + fn authenticate_admin(&mut self, password: &str) -> Result, Error> { authenticate(self, password, |password_ptr, temp_password_ptr| unsafe { nitrokey_sys::NK_first_authenticate(password_ptr, temp_password_ptr) }) @@ -414,13 +337,13 @@ impl Authenticate for Pro { } impl Authenticate for Storage { - fn authenticate_user(self, password: &str) -> Result, (Self, Error)> { + fn authenticate_user(&mut self, password: &str) -> Result, Error> { authenticate(self, password, |password_ptr, temp_password_ptr| unsafe { nitrokey_sys::NK_user_authenticate(password_ptr, temp_password_ptr) }) } - fn authenticate_admin(self, password: &str) -> Result, (Self, Error)> { + fn authenticate_admin(&mut self, password: &str) -> Result, Error> { authenticate(self, password, |password_ptr, temp_password_ptr| unsafe { nitrokey_sys::NK_first_authenticate(password_ptr, temp_password_ptr) }) diff --git a/src/device.rs b/src/device.rs index f6492cd..a0df30e 100644 --- a/src/device.rs +++ b/src/device.rs @@ -71,16 +71,10 @@ impl fmt::Display for VolumeMode { /// fn perform_other_task(device: &DeviceWrapper) {} /// /// # fn try_main() -> Result<(), Error> { -/// let device = nitrokey::connect()?; -/// 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 -/// }, +/// let mut device = nitrokey::connect()?; +/// match device.authenticate_user("123456") { +/// Ok(user) => perform_user_task(&user), +/// Err(err) => eprintln!("Could not authenticate as user: {}", err), /// }; /// perform_other_task(&device); /// # Ok(()) @@ -135,16 +129,10 @@ pub enum DeviceWrapper { /// fn perform_other_task(device: &Pro) {} /// /// # fn try_main() -> Result<(), Error> { -/// let device = nitrokey::Pro::connect()?; -/// 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 -/// }, +/// let mut device = nitrokey::Pro::connect()?; +/// match device.authenticate_user("123456") { +/// Ok(user) => perform_user_task(&user), +/// Err(err) => eprintln!("Could not authenticate as user: {}", err), /// }; /// perform_other_task(&device); /// # Ok(()) @@ -181,16 +169,10 @@ pub struct Pro { /// fn perform_other_task(device: &Storage) {} /// /// # fn try_main() -> Result<(), Error> { -/// let device = nitrokey::Storage::connect()?; -/// 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 -/// }, +/// let mut device = nitrokey::Storage::connect()?; +/// match device.authenticate_user("123456") { +/// Ok(user) => perform_user_task(&user), +/// Err(err) => eprintln!("Could not authenticate as user: {}", err), /// }; /// perform_other_task(&device); /// # Ok(()) diff --git a/src/lib.rs b/src/lib.rs index c35829c..d7a8c5e 100644 --- a/src/lib.rs +++ b/src/lib.rs @@ -44,7 +44,7 @@ //! # use nitrokey::Error; //! //! # fn try_main() -> Result<(), Error> { -//! let device = nitrokey::connect()?; +//! let mut device = nitrokey::connect()?; //! let slot_data = OtpSlotData::new(1, "test", "01234567890123456689", OtpMode::SixDigits); //! match device.authenticate_admin("12345678") { //! Ok(mut admin) => { @@ -53,7 +53,7 @@ //! Err(err) => eprintln!("Could not write slot: {}", err), //! } //! }, -//! Err((_, err)) => eprintln!("Could not authenticate as admin: {}", err), +//! Err(err) => eprintln!("Could not authenticate as admin: {}", err), //! } //! # Ok(()) //! # } diff --git a/src/otp.rs b/src/otp.rs index ee142c7..a8dd20b 100644 --- a/src/otp.rs +++ b/src/otp.rs @@ -35,7 +35,7 @@ pub trait ConfigureOtp { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let slot_data = OtpSlotData::new(1, "test", "01234567890123456689", OtpMode::SixDigits); /// match device.authenticate_admin("12345678") { /// Ok(mut admin) => { @@ -44,7 +44,7 @@ pub trait ConfigureOtp { /// Err(err) => eprintln!("Could not write slot: {}", err), /// } /// }, - /// Err((_, err)) => eprintln!("Could not authenticate as admin: {}", err), + /// Err(err) => eprintln!("Could not authenticate as admin: {}", err), /// } /// # Ok(()) /// # } @@ -71,7 +71,7 @@ pub trait ConfigureOtp { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// let slot_data = OtpSlotData::new(1, "test", "01234567890123456689", OtpMode::EightDigits); /// match device.authenticate_admin("12345678") { /// Ok(mut admin) => { @@ -80,7 +80,7 @@ pub trait ConfigureOtp { /// Err(err) => eprintln!("Could not write slot: {}", err), /// } /// }, - /// Err((_, err)) => eprintln!("Could not authenticate as admin: {}", err), + /// Err(err) => eprintln!("Could not authenticate as admin: {}", err), /// } /// # Ok(()) /// # } @@ -104,7 +104,7 @@ pub trait ConfigureOtp { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.authenticate_admin("12345678") { /// Ok(mut admin) => { /// match admin.erase_hotp_slot(1) { @@ -112,7 +112,7 @@ pub trait ConfigureOtp { /// Err(err) => eprintln!("Could not erase slot: {}", err), /// } /// }, - /// Err((_, err)) => eprintln!("Could not authenticate as admin: {}", err), + /// Err(err) => eprintln!("Could not authenticate as admin: {}", err), /// } /// # Ok(()) /// # } @@ -134,7 +134,7 @@ pub trait ConfigureOtp { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut device = nitrokey::connect()?; /// match device.authenticate_admin("12345678") { /// Ok(mut admin) => { /// match admin.erase_totp_slot(1) { @@ -142,7 +142,7 @@ pub trait ConfigureOtp { /// Err(err) => eprintln!("Could not erase slot: {}", err), /// } /// }, - /// Err((_, err)) => eprintln!("Could not authenticate as admin: {}", err), + /// Err(err) => eprintln!("Could not authenticate as admin: {}", err), /// } /// # Ok(()) /// # } diff --git a/tests/device.rs b/tests/device.rs index 7a69214..bffd767 100644 --- a/tests/device.rs +++ b/tests/device.rs @@ -98,41 +98,34 @@ fn get_firmware_version(device: Pro) { assert!(version.minor > 0); } -fn admin_retry(device: T, suffix: &str, count: u8) -> T { - let result = device.authenticate_admin(&(ADMIN_PASSWORD.to_owned() + suffix)); - let device = match result { - Ok(admin) => admin.device(), - Err((device, _)) => device, - }; +fn admin_retry(device: &mut T, suffix: &str, count: u8) { + assert_any_ok!(device.authenticate_admin(&(ADMIN_PASSWORD.to_owned() + suffix))); assert_ok!(count, device.get_admin_retry_count()); - return device; } -fn user_retry(device: T, suffix: &str, count: u8) -> T { - let result = device.authenticate_user(&(USER_PASSWORD.to_owned() + suffix)); - let device = match result { - Ok(admin) => admin.device(), - Err((device, _)) => device, - }; +fn user_retry(device: &mut T, suffix: &str, count: u8) { + assert_any_ok!(device.authenticate_user(&(USER_PASSWORD.to_owned() + suffix))); assert_ok!(count, device.get_user_retry_count()); - return device; } #[test_device] fn get_retry_count(device: DeviceWrapper) { - let device = admin_retry(device, "", 3); - let device = admin_retry(device, "123", 2); - let device = admin_retry(device, "456", 1); - let device = admin_retry(device, "", 3); - - let device = user_retry(device, "", 3); - let device = user_retry(device, "123", 2); - let device = user_retry(device, "456", 1); - user_retry(device, "", 3); + let mut device = device; + + admin_retry(&mut device, "", 3); + admin_retry(&mut device, "123", 2); + admin_retry(&mut device, "456", 1); + admin_retry(&mut device, "", 3); + + user_retry(&mut device, "", 3); + user_retry(&mut device, "123", 2); + user_retry(&mut device, "456", 1); + user_retry(&mut device, "", 3); } #[test_device] fn config(device: DeviceWrapper) { + let mut device = device; let mut admin = unwrap_ok!(device.authenticate_admin(ADMIN_PASSWORD)); let config = Config::new(None, None, None, true); @@ -153,43 +146,52 @@ fn config(device: DeviceWrapper) { #[test_device] fn change_user_pin(device: DeviceWrapper) { - let device = device.authenticate_user(USER_PASSWORD).unwrap().device(); - let device = device.authenticate_user(USER_NEW_PASSWORD).unwrap_err().0; - let mut device = device; + assert_any_ok!(device.authenticate_user(USER_PASSWORD)); + assert_cmd_err!( + CommandError::WrongPassword, + device.authenticate_user(USER_NEW_PASSWORD) + ); + assert_ok!((), device.change_user_pin(USER_PASSWORD, USER_NEW_PASSWORD)); - let device = device.authenticate_user(USER_PASSWORD).unwrap_err().0; - let device = device - .authenticate_user(USER_NEW_PASSWORD) - .unwrap() - .device(); + assert_cmd_err!( + CommandError::WrongPassword, + device.authenticate_user(USER_PASSWORD) + ); + assert_any_ok!(device.authenticate_user(USER_NEW_PASSWORD)); - let mut device = device; let result = device.change_user_pin(USER_PASSWORD, USER_PASSWORD); assert_cmd_err!(CommandError::WrongPassword, result); assert_ok!((), device.change_user_pin(USER_NEW_PASSWORD, USER_PASSWORD)); - let device = device.authenticate_user(USER_PASSWORD).unwrap().device(); - assert!(device.authenticate_user(USER_NEW_PASSWORD).is_err()); + assert_any_ok!(device.authenticate_user(USER_PASSWORD)); + assert_cmd_err!( + CommandError::WrongPassword, + device.authenticate_user(USER_NEW_PASSWORD) + ); } #[test_device] fn change_admin_pin(device: DeviceWrapper) { - let device = device.authenticate_admin(ADMIN_PASSWORD).unwrap().device(); - let mut device = device.authenticate_admin(ADMIN_NEW_PASSWORD).unwrap_err().0; + let mut device = device; + assert_any_ok!(device.authenticate_admin(ADMIN_PASSWORD)); + assert_cmd_err!( + CommandError::WrongPassword, + device.authenticate_admin(ADMIN_NEW_PASSWORD) + ); assert_ok!( (), device.change_admin_pin(ADMIN_PASSWORD, ADMIN_NEW_PASSWORD) ); - let device = device.authenticate_admin(ADMIN_PASSWORD).unwrap_err().0; - let mut device = device - .authenticate_admin(ADMIN_NEW_PASSWORD) - .unwrap() - .device(); + assert_cmd_err!( + CommandError::WrongPassword, + device.authenticate_admin(ADMIN_PASSWORD) + ); + assert_any_ok!(device.authenticate_admin(ADMIN_NEW_PASSWORD)); assert_cmd_err!( CommandError::WrongPassword, @@ -201,28 +203,24 @@ fn change_admin_pin(device: DeviceWrapper) { device.change_admin_pin(ADMIN_NEW_PASSWORD, ADMIN_PASSWORD) ); - let device = device.authenticate_admin(ADMIN_PASSWORD).unwrap().device(); - device.authenticate_admin(ADMIN_NEW_PASSWORD).unwrap_err(); + assert_any_ok!(device.authenticate_admin(ADMIN_PASSWORD)); + assert_cmd_err!( + CommandError::WrongPassword, + device.authenticate_admin(ADMIN_NEW_PASSWORD) + ); } -fn require_failed_user_login(device: D, password: &str, error: CommandError) -> D -where - D: Device + Authenticate, - nitrokey::User: std::fmt::Debug, -{ - let result = device.authenticate_user(password); - assert!(result.is_err()); - let err = result.unwrap_err(); - match err.1 { - Error::CommandError(err) => assert_eq!(error, err), - _ => assert!(false), - }; - err.0 +fn require_failed_user_login(device: &mut D, password: &str) { + assert_cmd_err!( + CommandError::WrongPassword, + device.authenticate_user(password) + ); } #[test_device] fn unlock_user_pin(device: DeviceWrapper) { - let mut device = device.authenticate_user(USER_PASSWORD).unwrap().device(); + let mut device = device; + assert_any_ok!(device.authenticate_user(USER_PASSWORD)); assert_ok!((), device.unlock_user_pin(ADMIN_PASSWORD, USER_PASSWORD)); assert_cmd_err!( CommandError::WrongPassword, @@ -231,10 +229,10 @@ fn unlock_user_pin(device: DeviceWrapper) { // block user PIN let wrong_password = USER_PASSWORD.to_owned() + "foo"; - let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); - let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); - let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); - let mut device = require_failed_user_login(device, USER_PASSWORD, CommandError::WrongPassword); + require_failed_user_login(&mut device, &wrong_password); + require_failed_user_login(&mut device, &wrong_password); + require_failed_user_login(&mut device, &wrong_password); + require_failed_user_login(&mut device, USER_PASSWORD); // unblock with current PIN assert_cmd_err!( @@ -242,13 +240,13 @@ fn unlock_user_pin(device: DeviceWrapper) { device.unlock_user_pin(USER_PASSWORD, USER_PASSWORD) ); assert_ok!((), device.unlock_user_pin(ADMIN_PASSWORD, USER_PASSWORD)); - let device = device.authenticate_user(USER_PASSWORD).unwrap().device(); + assert_any_ok!(device.authenticate_user(USER_PASSWORD)); // block user PIN - let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); - let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); - let device = require_failed_user_login(device, &wrong_password, CommandError::WrongPassword); - let mut device = require_failed_user_login(device, USER_PASSWORD, CommandError::WrongPassword); + require_failed_user_login(&mut device, &wrong_password); + require_failed_user_login(&mut device, &wrong_password); + require_failed_user_login(&mut device, &wrong_password); + require_failed_user_login(&mut device, USER_PASSWORD); // unblock with new PIN assert_cmd_err!( @@ -274,11 +272,11 @@ fn assert_utf8_err_or_ne(left: &str, right: Result) { #[test_device] fn factory_reset(device: DeviceWrapper) { + let mut device = device; let mut admin = unwrap_ok!(device.authenticate_admin(ADMIN_PASSWORD)); let otp_data = OtpSlotData::new(1, "test", "0123468790", OtpMode::SixDigits); assert_ok!((), admin.write_totp_slot(otp_data, 30)); - let mut device = admin.device(); let mut pws = unwrap_ok!(device.get_password_safe(USER_PASSWORD)); assert_ok!((), pws.write_slot(0, "test", "testlogin", "testpw")); drop(pws); @@ -299,12 +297,11 @@ fn factory_reset(device: DeviceWrapper) { ); assert_ok!((), device.factory_reset(ADMIN_NEW_PASSWORD)); - let device = device.authenticate_admin(ADMIN_PASSWORD).unwrap().device(); + assert_any_ok!(device.authenticate_admin(ADMIN_PASSWORD)); let user = unwrap_ok!(device.authenticate_user(USER_PASSWORD)); assert_cmd_err!(CommandError::SlotNotProgrammed, user.get_totp_slot_name(1)); - let mut device = user.device(); let pws = unwrap_ok!(device.get_password_safe(USER_PASSWORD)); assert_utf8_err_or_ne("test", pws.get_slot_name(0)); assert_utf8_err_or_ne("testlogin", pws.get_slot_login(0)); @@ -327,7 +324,7 @@ fn build_aes_key(device: DeviceWrapper) { ); assert_ok!((), device.build_aes_key(ADMIN_PASSWORD)); - let mut device = device.authenticate_admin(ADMIN_PASSWORD).unwrap().device(); + assert_any_ok!(device.authenticate_admin(ADMIN_PASSWORD)); let pws = unwrap_ok!(device.get_password_safe(USER_PASSWORD)); assert_utf8_err_or_ne("test", pws.get_slot_name(0)); diff --git a/tests/otp.rs b/tests/otp.rs index 28a8d7c..8ca8311 100644 --- a/tests/otp.rs +++ b/tests/otp.rs @@ -3,7 +3,6 @@ mod util; -use std::fmt::Debug; use std::ops::DerefMut; use nitrokey::{ @@ -38,14 +37,11 @@ enum TotpTimestampSize { U64, } -fn make_admin_test_device(device: T) -> Admin +fn make_admin_test_device<'a, T>(device: &'a mut T) -> Admin<'a, T> where T: Device, - (T, nitrokey::Error): Debug, { - device - .authenticate_admin(ADMIN_PASSWORD) - .expect("Could not login as admin.") + unwrap_ok!(device.authenticate_admin(ADMIN_PASSWORD)) } fn configure_hotp(admin: &mut ConfigureOtp, counter: u8) { @@ -72,7 +68,8 @@ fn set_time(device: DeviceWrapper) { #[test_device] fn hotp_no_pin(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); @@ -83,36 +80,38 @@ fn hotp_no_pin(device: DeviceWrapper) { check_hotp_codes(admin.deref_mut(), 5); configure_hotp(&mut admin, 0); - check_hotp_codes(&mut admin.device(), 0); + check_hotp_codes(&mut device, 0); } #[test_device] fn hotp_pin(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let config = Config::new(None, None, None, true); assert_ok!((), admin.write_config(config)); configure_hotp(&mut admin, 0); - let mut user = unwrap_ok!(admin.device().authenticate_user(USER_PASSWORD)); + let mut user = unwrap_ok!(device.authenticate_user(USER_PASSWORD)); check_hotp_codes(&mut user, 0); - assert_cmd_err!(CommandError::NotAuthorized, user.device().get_hotp_code(1)); + assert_cmd_err!(CommandError::NotAuthorized, user.get_hotp_code(1)); } #[test_device] fn hotp_slot_name(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let slot_data = OtpSlotData::new(1, "test-hotp", HOTP_SECRET, OtpMode::SixDigits); assert_ok!((), admin.write_hotp_slot(slot_data, 0)); - let device = admin.device(); assert_ok!("test-hotp".to_string(), device.get_hotp_slot_name(1)); assert_lib_err!(LibraryError::InvalidSlot, device.get_hotp_slot_name(4)); } #[test_device] fn hotp_error(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let slot_data = OtpSlotData::new(1, "", HOTP_SECRET, OtpMode::SixDigits); assert_cmd_err!(CommandError::NoName, admin.write_hotp_slot(slot_data, 0)); let slot_data = OtpSlotData::new(4, "test", HOTP_SECRET, OtpMode::SixDigits); @@ -131,7 +130,8 @@ fn hotp_error(device: DeviceWrapper) { #[test_device] fn hotp_erase(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); let slot_data = OtpSlotData::new(1, "test1", HOTP_SECRET, OtpMode::SixDigits); @@ -141,7 +141,6 @@ fn hotp_erase(device: DeviceWrapper) { assert_ok!((), admin.erase_hotp_slot(1)); - let mut device = admin.device(); let result = device.get_hotp_slot_name(1); assert_cmd_err!(CommandError::SlotNotProgrammed, result); let result = device.get_hotp_code(1); @@ -178,7 +177,8 @@ fn check_totp_codes(device: &mut GenerateOtp, factor: u64, timestamp_size: TotpT #[test_device] fn totp_no_pin(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); @@ -189,14 +189,15 @@ fn totp_no_pin(device: DeviceWrapper) { check_totp_codes(admin.deref_mut(), 2, TotpTimestampSize::U32); configure_totp(&mut admin, 1); - check_totp_codes(&mut admin.device(), 1, TotpTimestampSize::U32); + check_totp_codes(&mut device, 1, TotpTimestampSize::U32); } #[test_device] // Nitrokey Storage does only support timestamps that fit in a 32-bit // unsigned integer, so don't test with it. fn totp_no_pin_64(device: Pro) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); @@ -207,43 +208,45 @@ fn totp_no_pin_64(device: Pro) { check_totp_codes(admin.deref_mut(), 2, TotpTimestampSize::U64); configure_totp(&mut admin, 1); - check_totp_codes(&mut admin.device(), 1, TotpTimestampSize::U64); + check_totp_codes(&mut device, 1, TotpTimestampSize::U64); } #[test_device] fn totp_pin(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let config = Config::new(None, None, None, true); assert_ok!((), admin.write_config(config)); configure_totp(&mut admin, 1); - let mut user = unwrap_ok!(admin.device().authenticate_user(USER_PASSWORD)); + let mut user = unwrap_ok!(device.authenticate_user(USER_PASSWORD)); check_totp_codes(&mut user, 1, TotpTimestampSize::U32); - assert_cmd_err!(CommandError::NotAuthorized, user.device().get_totp_code(1)); + assert_cmd_err!(CommandError::NotAuthorized, user.get_totp_code(1)); } #[test_device] // See comment for totp_no_pin_64. fn totp_pin_64(device: Pro) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let config = Config::new(None, None, None, true); assert_ok!((), admin.write_config(config)); configure_totp(&mut admin, 1); - let mut user = unwrap_ok!(admin.device().authenticate_user(USER_PASSWORD)); + let mut user = unwrap_ok!(admin.authenticate_user(USER_PASSWORD)); check_totp_codes(&mut user, 1, TotpTimestampSize::U64); - assert_cmd_err!(CommandError::NotAuthorized, user.device().get_totp_code(1)); + assert_cmd_err!(CommandError::NotAuthorized, device.get_totp_code(1)); } #[test_device] fn totp_slot_name(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let slot_data = OtpSlotData::new(1, "test-totp", TOTP_SECRET, OtpMode::EightDigits); assert_ok!((), admin.write_totp_slot(slot_data, 0)); - let device = admin.device(); let result = device.get_totp_slot_name(1); assert_ok!("test-totp", result); let result = device.get_totp_slot_name(16); @@ -252,7 +255,8 @@ fn totp_slot_name(device: DeviceWrapper) { #[test_device] fn totp_error(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let slot_data = OtpSlotData::new(1, "", TOTP_SECRET, OtpMode::SixDigits); assert_cmd_err!(CommandError::NoName, admin.write_totp_slot(slot_data, 0)); let slot_data = OtpSlotData::new(20, "test", TOTP_SECRET, OtpMode::SixDigits); @@ -271,7 +275,8 @@ fn totp_error(device: DeviceWrapper) { #[test_device] fn totp_erase(device: DeviceWrapper) { - let mut admin = make_admin_test_device(device); + let mut device = device; + let mut admin = make_admin_test_device(&mut device); let config = Config::new(None, None, None, false); assert_ok!((), admin.write_config(config)); let slot_data = OtpSlotData::new(1, "test1", TOTP_SECRET, OtpMode::SixDigits); @@ -281,7 +286,6 @@ fn totp_erase(device: DeviceWrapper) { assert_ok!((), admin.erase_totp_slot(1)); - let device = admin.device(); let result = device.get_totp_slot_name(1); assert_cmd_err!(CommandError::SlotNotProgrammed, result); let result = device.get_totp_code(1); diff --git a/tests/util/mod.rs b/tests/util/mod.rs index bd207a9..f80372d 100644 --- a/tests/util/mod.rs +++ b/tests/util/mod.rs @@ -8,7 +8,7 @@ pub static USER_PASSWORD: &str = "123456"; #[macro_export] macro_rules! unwrap_ok { - ($val:expr) => {{ + ($val:expr) => { match $val { Ok(val) => val, Err(err) => panic!( @@ -18,12 +18,12 @@ macro_rules! unwrap_ok { err ), } - }}; + }; } #[macro_export] macro_rules! assert_any_ok { - ($val:expr) => {{ + ($val:expr) => { match &$val { Ok(_) => {} Err(err) => panic!( @@ -33,12 +33,12 @@ macro_rules! assert_any_ok { err ), } - }}; + }; } #[macro_export] macro_rules! assert_ok { - ($left:expr, $right:expr) => {{ + ($left:expr, $right:expr) => { match &$right { Ok(right) => match &$left { left => { @@ -59,7 +59,7 @@ macro_rules! assert_ok { $left, right_err ), } - }}; + }; } #[macro_export] -- cgit v1.2.3 From 13006c00dcbd570cf8347d89557834e320427377 Mon Sep 17 00:00:00 2001 From: Robin Krahl Date: Wed, 30 Jan 2019 18:40:11 +0000 Subject: Store mutable reference to Device in PasswordSafe 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. --- CHANGELOG.md | 2 ++ TODO.md | 1 - src/pws.rs | 24 ++++++++++++------------ 3 files changed, 14 insertions(+), 13 deletions(-) diff --git a/CHANGELOG.md b/CHANGELOG.md index 8e6cb9c..9227510 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -40,6 +40,8 @@ SPDX-License-Identifier: MIT - Require a mutable `Device` reference if a method changes the device state. - Let `Admin` and `User` store a mutable reference to the `Device` instead of the `Device` value. +- Let `PasswordStore` store a mutable reference to the `Device` instead of a + non-mutable reference. # v0.3.4 (2019-01-20) - Fix authentication methods that assumed that `char` is signed. diff --git a/TODO.md b/TODO.md index 1ff723d..d6a3509 100644 --- a/TODO.md +++ b/TODO.md @@ -13,7 +13,6 @@ SPDX-License-Identifier: MIT - Clear passwords from memory. - Lock password safe in `PasswordSafe::drop()` (see [nitrokey-storage-firmware issue 65][]). -- Disable creation of multiple password safes at the same time. - Check timing in Storage tests. - Consider restructuring `device::StorageStatus`. diff --git a/src/pws.rs b/src/pws.rs index 371de6e..a5b9d33 100644 --- a/src/pws.rs +++ b/src/pws.rs @@ -18,8 +18,7 @@ pub const SLOT_COUNT: u8 = 16; /// The password safe stores a tuple consisting of a name, a login and a password on a slot. The /// number of available slots is [`SLOT_COUNT`][]. The slots are addressed starting with zero. To /// retrieve a password safe from a Nitrokey device, use the [`get_password_safe`][] method from -/// the [`GetPasswordSafe`][] trait. Note that the device must live at least as long as the -/// password safe. +/// the [`GetPasswordSafe`][] trait. /// /// Once the password safe has been unlocked, it can be accessed without a password. Therefore it /// is mandatory to call [`lock`][] on the corresponding device after the password store is used. @@ -58,21 +57,17 @@ pub const SLOT_COUNT: u8 = 16; /// [`GetPasswordSafe`]: trait.GetPasswordSafe.html #[derive(Debug)] pub struct PasswordSafe<'a> { - _device: &'a dyn Device, + device: &'a mut dyn Device, } /// Provides access to a [`PasswordSafe`][]. /// -/// The device that implements this trait must always live at least as long as a password safe -/// retrieved from it. -/// /// [`PasswordSafe`]: struct.PasswordSafe.html pub trait GetPasswordSafe { /// Enables and returns the password safe. /// - /// The underlying device must always live at least as long as a password safe retrieved from - /// it. It is mandatory to lock the underlying device using [`lock`][] after the password safe - /// has been used. Otherwise, other applications can access the password store without + /// It is mandatory to lock the underlying device using [`lock`][] after the password safe has + /// been used. Otherwise, other applications can access the password store without /// authentication. /// /// If this method returns an `AesDecryptionFailed` (Nitrokey Pro) or `Unknown` (Nitrokey @@ -121,12 +116,17 @@ pub trait GetPasswordSafe { } fn get_password_safe<'a>( - device: &'a dyn Device, + device: &'a mut dyn Device, user_pin: &str, ) -> Result, Error> { let user_pin_string = get_cstring(user_pin)?; - get_command_result(unsafe { nitrokey_sys::NK_enable_password_safe(user_pin_string.as_ptr()) }) - .map(|_| PasswordSafe { _device: device }) + let result = get_command_result(unsafe { + nitrokey_sys::NK_enable_password_safe(user_pin_string.as_ptr()) + }); + match result { + Ok(()) => Ok(PasswordSafe { device }), + Err(err) => Err(err), + } } fn get_pws_result(s: String) -> Result { -- cgit v1.2.3