Set the factory default value of an attribute

This allows to fill specific attributes with the defined default
value for the specific object type.
If the object does not have a default value for the requested
attribute nothing it set on the object.

Signed-off-by: Simo Sorce <[email protected]>

src/object.rs

@@ -502,6 +502,23 @@ pub trait ObjectFactory: Debug + Send + Sync {
         Ok(obj)
     }
 
+    fn set_attribute_default(
+        &self,
+        attr: CK_ATTRIBUTE_TYPE,
+        obj: &mut Object,
+    ) -> Result<()> {
+        let attributes = self.get_attributes();
+        match attributes.iter().find(|a| a.get_type() == attr) {
+            Some(defattr) => {
+                if defattr.has_default() {
+                    obj.set_attr(defattr.attribute.clone())?;
+                }
+            }
+            None => (),
+        }
+        Ok(())
+    }
+
     fn default_copy(
         &self,
         origin: &Object,

src/storage/nssdb/mod.rs

@@ -888,8 +888,9 @@ impl Storage for NSSStorage {
         }
         /* add back the attributes that we requested, but that do not exist in DB */
         for a in NSS_SKIP_ATTRIBUTES {
+            let factory = facilities.factories.get_object_factory(&obj)?;
             match attributes.iter().position(|r| r.type_ == a) {
-                Some(_) => obj.set_attr(Attribute::from_bool(a, true))?,
+                Some(_) => factory.set_attribute_default(a, &mut obj)?,
                 None => (),
             }
         }