diff options
Diffstat (limited to 'src/auth.rs')
-rw-r--r-- | src/auth.rs | 90 |
1 files changed, 49 insertions, 41 deletions
diff --git a/src/auth.rs b/src/auth.rs index f9f50fa..0b000f7 100644 --- a/src/auth.rs +++ b/src/auth.rs @@ -1,6 +1,7 @@ // Copyright (C) 2018-2019 Robin Krahl <robin.krahl@ireas.org> // SPDX-License-Identifier: MIT +use std::marker; use std::ops; use std::os::raw::c_char; use std::os::raw::c_int; @@ -18,7 +19,7 @@ static TEMPORARY_PASSWORD_LENGTH: usize = 25; /// Provides methods to authenticate as a user or as an admin using a PIN. The authenticated /// methods will consume the current device instance. On success, they return the authenticated /// device. Otherwise, they return the current unauthenticated device and the error code. -pub trait Authenticate { +pub trait Authenticate<'a> { /// Performs user authentication. This method consumes the device. If successful, an /// authenticated device is returned. Otherwise, the current unauthenticated device and the /// error are returned. @@ -38,11 +39,12 @@ pub trait Authenticate { /// use nitrokey::{Authenticate, DeviceWrapper, User}; /// # use nitrokey::Error; /// - /// fn perform_user_task(device: &User<DeviceWrapper>) {} + /// fn perform_user_task<'a>(device: &User<'a, DeviceWrapper<'a>>) {} /// fn perform_other_task(device: &DeviceWrapper) {} /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut manager = nitrokey::take()?; + /// let device = manager.connect()?; /// let device = match device.authenticate_user("123456") { /// Ok(user) => { /// perform_user_task(&user); @@ -61,9 +63,9 @@ 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<User<Self>, (Self, Error)> + fn authenticate_user(self, password: &str) -> Result<User<'a, Self>, (Self, Error)> where - Self: Device + Sized; + Self: Device<'a> + Sized; /// Performs admin authentication. This method consumes the device. If successful, an /// authenticated device is returned. Otherwise, the current unauthenticated device and the @@ -84,11 +86,12 @@ pub trait Authenticate { /// use nitrokey::{Authenticate, Admin, DeviceWrapper}; /// # use nitrokey::Error; /// - /// fn perform_admin_task(device: &Admin<DeviceWrapper>) {} + /// fn perform_admin_task<'a>(device: &Admin<'a, DeviceWrapper<'a>>) {} /// fn perform_other_task(device: &DeviceWrapper) {} /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut manager = nitrokey::take()?; + /// let device = manager.connect()?; /// let device = match device.authenticate_admin("123456") { /// Ok(admin) => { /// perform_admin_task(&admin); @@ -107,9 +110,9 @@ 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<Admin<Self>, (Self, Error)> + fn authenticate_admin(self, password: &str) -> Result<Admin<'a, Self>, (Self, Error)> where - Self: Device + Sized; + Self: Device<'a> + Sized; } trait AuthenticatedDevice<T> { @@ -128,9 +131,10 @@ trait AuthenticatedDevice<T> { /// [`authenticate_admin`]: trait.Authenticate.html#method.authenticate_admin /// [`device`]: #method.device #[derive(Debug)] -pub struct User<T: Device> { +pub struct User<'a, T: Device<'a>> { device: T, temp_password: Vec<u8>, + marker: marker::PhantomData<&'a T>, } /// A Nitrokey device with admin authentication. @@ -143,14 +147,15 @@ pub struct User<T: Device> { /// [`authenticate_admin`]: trait.Authenticate.html#method.authenticate_admin /// [`device`]: #method.device #[derive(Debug)] -pub struct Admin<T: Device> { +pub struct Admin<'a, T: Device<'a>> { device: T, temp_password: Vec<u8>, + marker: marker::PhantomData<&'a T>, } -fn authenticate<D, A, T>(device: D, password: &str, callback: T) -> Result<A, (D, Error)> +fn authenticate<'a, D, A, T>(device: D, password: &str, callback: T) -> Result<A, (D, Error)> where - D: Device, + D: Device<'a>, A: AuthenticatedDevice<D>, T: Fn(*const c_char, *const c_char) -> c_int, { @@ -170,14 +175,14 @@ where } } -fn authenticate_user_wrapper<T, C>( +fn authenticate_user_wrapper<'a, T, C>( device: T, constructor: C, password: &str, -) -> Result<User<DeviceWrapper>, (DeviceWrapper, Error)> +) -> Result<User<'a, DeviceWrapper<'a>>, (DeviceWrapper<'a>, Error)> where - T: Device, - C: Fn(T) -> DeviceWrapper, + T: Device<'a> + 'a, + C: Fn(T) -> DeviceWrapper<'a>, { let result = device.authenticate_user(password); match result { @@ -186,14 +191,14 @@ where } } -fn authenticate_admin_wrapper<T, C>( +fn authenticate_admin_wrapper<'a, T, C>( device: T, constructor: C, password: &str, -) -> Result<Admin<DeviceWrapper>, (DeviceWrapper, Error)> +) -> Result<Admin<'a, DeviceWrapper<'a>>, (DeviceWrapper<'a>, Error)> where - T: Device, - C: Fn(T) -> DeviceWrapper, + T: Device<'a> + 'a, + C: Fn(T) -> DeviceWrapper<'a>, { let result = device.authenticate_admin(password); match result { @@ -202,7 +207,7 @@ where } } -impl<T: Device> User<T> { +impl<'a, T: Device<'a>> User<'a, T> { /// 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. @@ -211,7 +216,7 @@ impl<T: Device> User<T> { } } -impl<T: Device> ops::Deref for User<T> { +impl<'a, T: Device<'a>> ops::Deref for User<'a, T> { type Target = T; fn deref(&self) -> &Self::Target { @@ -219,13 +224,13 @@ impl<T: Device> ops::Deref for User<T> { } } -impl<T: Device> ops::DerefMut for User<T> { +impl<'a, T: Device<'a>> ops::DerefMut for User<'a, T> { fn deref_mut(&mut self) -> &mut T { &mut self.device } } -impl<T: Device> GenerateOtp for User<T> { +impl<'a, T: Device<'a>> GenerateOtp for User<'a, T> { fn get_hotp_code(&mut self, slot: u8) -> Result<String, Error> { result_from_string(unsafe { nitrokey_sys::NK_get_hotp_code_PIN(slot, self.temp_password_ptr()) @@ -239,11 +244,12 @@ impl<T: Device> GenerateOtp for User<T> { } } -impl<T: Device> AuthenticatedDevice<T> for User<T> { +impl<'a, T: Device<'a>> AuthenticatedDevice<T> for User<'a, T> { fn new(device: T, temp_password: Vec<u8>) -> Self { User { device, temp_password, + marker: marker::PhantomData, } } @@ -252,7 +258,7 @@ impl<T: Device> AuthenticatedDevice<T> for User<T> { } } -impl<T: Device> ops::Deref for Admin<T> { +impl<'a, T: Device<'a>> ops::Deref for Admin<'a, T> { type Target = T; fn deref(&self) -> &Self::Target { @@ -260,13 +266,13 @@ impl<T: Device> ops::Deref for Admin<T> { } } -impl<T: Device> ops::DerefMut for Admin<T> { +impl<'a, T: Device<'a>> ops::DerefMut for Admin<'a, T> { fn deref_mut(&mut self) -> &mut T { &mut self.device } } -impl<T: Device> Admin<T> { +impl<'a, T: Device<'a>> Admin<'a, T> { /// 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. @@ -287,7 +293,8 @@ impl<T: Device> Admin<T> { /// # use nitrokey::Error; /// /// # fn try_main() -> Result<(), Error> { - /// let device = nitrokey::connect()?; + /// let mut manager = nitrokey::take()?; + /// let device = manager.connect()?; /// let config = Config::new(None, None, None, false); /// match device.authenticate_admin("12345678") { /// Ok(mut admin) => { @@ -316,7 +323,7 @@ impl<T: Device> Admin<T> { } } -impl<T: Device> ConfigureOtp for Admin<T> { +impl<'a, T: Device<'a>> 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 { @@ -364,11 +371,12 @@ impl<T: Device> ConfigureOtp for Admin<T> { } } -impl<T: Device> AuthenticatedDevice<T> for Admin<T> { +impl<'a, T: Device<'a>> AuthenticatedDevice<T> for Admin<'a, T> { fn new(device: T, temp_password: Vec<u8>) -> Self { Admin { device, temp_password, + marker: marker::PhantomData, } } @@ -377,8 +385,8 @@ impl<T: Device> AuthenticatedDevice<T> for Admin<T> { } } -impl Authenticate for DeviceWrapper { - fn authenticate_user(self, password: &str) -> Result<User<Self>, (Self, Error)> { +impl<'a> Authenticate<'a> for DeviceWrapper<'a> { + fn authenticate_user(self, password: &str) -> Result<User<'a, Self>, (Self, Error)> { match self { DeviceWrapper::Storage(storage) => { authenticate_user_wrapper(storage, DeviceWrapper::Storage, password) @@ -387,7 +395,7 @@ impl Authenticate for DeviceWrapper { } } - fn authenticate_admin(self, password: &str) -> Result<Admin<Self>, (Self, Error)> { + fn authenticate_admin(self, password: &str) -> Result<Admin<'a, Self>, (Self, Error)> { match self { DeviceWrapper::Storage(storage) => { authenticate_admin_wrapper(storage, DeviceWrapper::Storage, password) @@ -399,28 +407,28 @@ impl Authenticate for DeviceWrapper { } } -impl Authenticate for Pro { - fn authenticate_user(self, password: &str) -> Result<User<Self>, (Self, Error)> { +impl<'a> Authenticate<'a> for Pro<'a> { + fn authenticate_user(self, password: &str) -> Result<User<'a, Self>, (Self, 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<Admin<Self>, (Self, Error)> { + fn authenticate_admin(self, password: &str) -> Result<Admin<'a, Self>, (Self, Error)> { authenticate(self, password, |password_ptr, temp_password_ptr| unsafe { nitrokey_sys::NK_first_authenticate(password_ptr, temp_password_ptr) }) } } -impl Authenticate for Storage { - fn authenticate_user(self, password: &str) -> Result<User<Self>, (Self, Error)> { +impl<'a> Authenticate<'a> for Storage<'a> { + fn authenticate_user(self, password: &str) -> Result<User<'a, Self>, (Self, 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<Admin<Self>, (Self, Error)> { + fn authenticate_admin(self, password: &str) -> Result<Admin<'a, Self>, (Self, Error)> { authenticate(self, password, |password_ptr, temp_password_ptr| unsafe { nitrokey_sys::NK_first_authenticate(password_ptr, temp_password_ptr) }) |