summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--CHANGELOG.md2
-rw-r--r--TODO.md1
-rw-r--r--src/pws.rs24
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<PasswordSafe<'a>, 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<String, Error> {