Add domain_code to provider env

domain.py

@@ -6,6 +6,9 @@ class Domain():
     def __init__(self, config):
         self.config = config
 
+    def get_name(self):
+        return self.config.name
+
     def get_ipv4_gateway(self):
         return self.config.ipv4_gateway
 
@@ -25,7 +28,10 @@ def get_provider_args(self):
         ''' Returns dict of parameters respondd queries are
             expected to arrive on
         '''
-        return { 'mesh_ipv4': self.get_ipv4_gateway() }
+        return {
+            'domain_code': self.get_name(),
+            'mesh_ipv4': self.get_ipv4_gateway()
+        }
 
 class BatadvDomain(Domain):
     ''' Container object for a batman freifunk domain

providers/nodeinfo/system/domain_code.py

@@ -2,10 +2,7 @@
 
 class Source(providers.DataSource):
     def required_args(self):
-        return ['batadv_dev', 'domain_code', 'known_codes']
+        return ['domain_code']
 
-    def call(self, batadv_dev, domain_code, known_codes):
-        try:
-            return known_codes[batadv_dev]
-        except KeyError:
-            return domain_code
+    def call(self, domain_code):
+        return domain_code