diff --git a/ldapcherry/__init__.py b/ldapcherry/__init__.py
index fe6a98d..dff12c0 100644
--- a/ldapcherry/__init__.py
+++ b/ldapcherry/__init__.py
@@ -107,7 +107,7 @@ class LdapCherry(object):
             except:
                 raise BackendModuleLoadingFail(module) 
             try:
-                self.backends[backend] = bc.Backend(params, cherrypy.log)
+                self.backends[backend] = bc.Backend(params, cherrypy.log, backend)
             except:
                 raise BackendModuleInitFail(module)
 
diff --git a/ldapcherry/backend/__init__.py b/ldapcherry/backend/__init__.py
index a671873..e9b8887 100644
--- a/ldapcherry/backend/__init__.py
+++ b/ldapcherry/backend/__init__.py
@@ -5,6 +5,8 @@
 # LdapCherry
 # Copyright (c) 2014 Carpentier Pierre-Francois
 
+from ldapcherry.exceptions import MissingParameter
+
 class Backend:
 
     def __init__(self):
@@ -21,3 +23,12 @@ class Backend:
 
     def rm_from_group(self):
         pass
+
+    def get_param(self, param, default=False):
+        if param in self.config:
+            return self.config[param]
+        elif default:
+            return default
+        else: 
+            raise MissingParameter(self.backend_name+'.'+param, 'backends')
+
diff --git a/ldapcherry/backend/backendSamba4.py b/ldapcherry/backend/backendSamba4.py
index 8f490e1..3c56935 100644
--- a/ldapcherry/backend/backendSamba4.py
+++ b/ldapcherry/backend/backendSamba4.py
@@ -9,5 +9,5 @@ import ldapcherry.backend
 
 class Backend(ldapcherry.backend.Backend):
 
-    def __init__(self, config, logger):
+    def __init__(self, config, logger, name):
         pass