[airos] fixed default for interface encryption, added docstrings

Author: edoput

netjsonconfig/backends/airos/interface.py

@@ -29,7 +29,7 @@ def encryption(interface):
     """
     Return the encryption dict for a wireless interface
     """
-    return interface['wireless']['encryption']
+    return interface['wireless'].get('encryption', {'protocol': 'none'})
 
 
 def flowcontrol(interface):

netjsonconfig/backends/airos/radius.py

@@ -48,6 +48,9 @@ def authentication(interface):
 
 
 def ap_accounting(interface):
+    """
+    Returns the ``acct`` dict for ``access_point`` interfaces
+    """
     result = {}
     if protocol(interface) == 'wpa2_enterprise':
         enc = encryption(interface)
@@ -59,6 +62,9 @@ def ap_accounting(interface):
     return result
 
 def sta_accounting(interface):
+    """
+    Returns the ``acct`` dict for ``station`` interfaces
+    """
     return {}
 
 

netjsonconfig/backends/airos/wireless.py

@@ -28,6 +28,9 @@
 
 
 def status(interface):
+    """
+    Return the ``wireless`` status
+    """
     if interface.get('disabled'):
         return 'disabled'
     else:

netjsonconfig/backends/airos/wpasupplicant.py

@@ -1,4 +1,4 @@
-from interface import encryption, ssid
+from .interface import encryption, ssid
 
 
 def ap_no_encryption(interface):