Add support for the GET_STATUS command

This patch adds support for the GET_STATUS command that returns the
status information common to all Nitrokey devices.  It can be accessed
using the Device::get_status function and is stored in a Status struct.

Due to a bug in the Storage firmware [0], the GET_STATUS command returns
wrong firmware versions and serial numbers.  Until this is fixed in
libnitrokey [1], we have to manually execute the GET_DEVICE_STATUS
command to fix these values for the Nitrokey Storage.

Also, this leads to a name clash with the existing Storage::get_status
function, which will be renamed in an upcoming patch.

[0] https://github.com/Nitrokey/nitrokey-storage-firmware/issues/96
[1] https://github.com/Nitrokey/libnitrokey/issues/166

1 files changed, 8 insertions, 1 deletions

diff --git a/src/device/wrapper.rs b/src/device/wrapper.rs
index a3a18f9..adbb695 100644
--- a/src/device/wrapper.rs
+++ b/src/device/wrapper.rs
@@ -1,7 +1,7 @@
 // Copyright (C) 2018-2019 Robin Krahl <robin.krahl@ireas.org>
 // SPDX-License-Identifier: MIT
 
-use crate::device::{Device, Model, Pro, Storage};
+use crate::device::{Device, Model, Pro, Status, Storage};
 use crate::error::Error;
 use crate::otp::GenerateOtp;
 
@@ -131,4 +131,11 @@ impl<'a> Device<'a> for DeviceWrapper<'a> {
             DeviceWrapper::Storage(_) => Model::Storage,
         }
     }
+
+    fn get_status(&self) -> Result<Status, Error> {
+        match self {
+            DeviceWrapper::Pro(dev) => dev.get_status(),
+            DeviceWrapper::Storage(dev) => Device::get_status(dev),
+        }
+    }
 }