Abstract attestation support

src/ctap/status_code.rs

@@ -12,8 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-use crate::api::key_store;
 use crate::api::user_presence::UserPresenceError;
+use crate::api::{attestation_store, key_store};
 
 // CTAP specification (version 20190130) section 6.3
 // For now, only the CTAP2 codes are here, the CTAP1 are not included.
@@ -100,3 +100,14 @@ impl From<key_store::Error> for Ctap2StatusCode {
         Self::CTAP2_ERR_VENDOR_INTERNAL_ERROR
     }
 }
+
+impl From<attestation_store::Error> for Ctap2StatusCode {
+    fn from(error: attestation_store::Error) -> Self {
+        use attestation_store::Error;
+        match error {
+            Error::Storage => Self::CTAP2_ERR_VENDOR_HARDWARE_FAILURE,
+            Error::Internal => Self::CTAP2_ERR_VENDOR_INTERNAL_ERROR,
+            Error::NoSupport => Self::CTAP2_ERR_VENDOR_INTERNAL_ERROR,
+        }
+    }
+}