Draft: Compare changes for Humble integration

sros2/sros2/keystore/_permission.py

@@ -50,6 +50,7 @@ def extend_permission_with_pcr(
         keystore_path: pathlib.Path,
         identity: str,
         system_identifier: str,
+        config_identifier: str,
         subject: str
 ):
     relative_path = os.path.normpath(identity.lstrip('/'))
@@ -62,6 +63,7 @@ def extend_permission_with_pcr(
 
     # Create XML elements to add to the permission.xml
     pcr_selection_children = []
+    config_found = False
 
     for _, dirs, _ in os.walk(tpm_system_dir):
         for config_dir in dirs:
@@ -77,12 +79,14 @@ def extend_permission_with_pcr(
                 pcr_selection_children.append(*_create_permission_xml_for_value(pcr_values_data))
 
             # Copy pcr_selection.txt into the enclave
-            # TODO: do this only once
-            shutil.copy(tpm_pcr_selection_path, key_tpm_dir)
+            if config_dir == config_identifier:
+                shutil.copy(tpm_pcr_selection_path, key_tpm_dir)
+                config_found = True
 
         break
 
-
+    if not config_found:
+        raise sros2.errors.SystemConfigNotFound(config_identifier, system_identifier)