Introduce into_manager for Device

To enable applications like nitrokey-test to go back to a manager
instance from a Device instance, we add the into_manager function to the
Device trait.  To do that, we have to keep track of the Manager’s
lifetime by adding a lifetime to Device (and then to some other traits
that use Device).

3 files changed, 15 insertions, 9 deletions

diff --git a/tests/device.rs b/tests/device.rs
index b377f2e..76f38e6 100644
--- a/tests/device.rs
+++ b/tests/device.rs
@@ -101,7 +101,10 @@ fn get_firmware_version(device: Pro) {
     assert!(version.minor > 0);
 }
 
-fn admin_retry<T: Authenticate + Device>(device: T, suffix: &str, count: u8) -> T {
+fn admin_retry<'a, T>(device: T, suffix: &str, count: u8) -> T
+where
+    T: Authenticate<'a> + Device<'a> + 'a,
+{
     let result = device.authenticate_admin(&(DEFAULT_ADMIN_PIN.to_owned() + suffix));
     let device = match result {
         Ok(admin) => admin.device(),
@@ -111,7 +114,10 @@ fn admin_retry<T: Authenticate + Device>(device: T, suffix: &str, count: u8) ->
     return device;
 }
 
-fn user_retry<T: Authenticate + Device>(device: T, suffix: &str, count: u8) -> T {
+fn user_retry<'a, T>(device: T, suffix: &str, count: u8) -> T
+where
+    T: Authenticate<'a> + Device<'a> + 'a,
+{
     let result = device.authenticate_user(&(DEFAULT_USER_PIN.to_owned() + suffix));
     let device = match result {
         Ok(admin) => admin.device(),
@@ -220,10 +226,10 @@ fn change_admin_pin(device: DeviceWrapper) {
     device.authenticate_admin(ADMIN_NEW_PASSWORD).unwrap_err();
 }
 
-fn require_failed_user_login<D>(device: D, password: &str, error: CommandError) -> D
+fn require_failed_user_login<'a, D>(device: D, password: &str, error: CommandError) -> D
 where
-    D: Device + Authenticate,
-    nitrokey::User<D>: std::fmt::Debug,
+    D: Device<'a> + Authenticate<'a> + 'a,
+    nitrokey::User<'a, D>: std::fmt::Debug,
 {
     let result = device.authenticate_user(password);
     assert!(result.is_err());
diff --git a/tests/otp.rs b/tests/otp.rs
index c0bbecf..aafda59 100644
--- a/tests/otp.rs
+++ b/tests/otp.rs
@@ -36,9 +36,9 @@ enum TotpTimestampSize {
     U64,
 }
 
-fn make_admin_test_device<T>(device: T) -> Admin<T>
+fn make_admin_test_device<'a, T>(device: T) -> Admin<'a, T>
 where
-    T: Device,
+    T: Device<'a>,
     (T, nitrokey::Error): Debug,
 {
     unwrap_ok!(device.authenticate_admin(DEFAULT_ADMIN_PIN))
diff --git a/tests/pws.rs b/tests/pws.rs
index b0e5abe..7169695 100644
--- a/tests/pws.rs
+++ b/tests/pws.rs
@@ -32,9 +32,9 @@ fn get_slot_name_direct(slot: u8) -> Result<String, Error> {
     }
 }
 
-fn get_pws<T>(device: &mut T) -> PasswordSafe
+fn get_pws<'a, T>(device: &mut T) -> PasswordSafe<'_, 'a>
 where
-    T: Device,
+    T: Device<'a>,
 {
     unwrap_ok!(device.get_password_safe(DEFAULT_USER_PIN))
 }