Add loopbacks

validator/loopback.py

@@ -4,6 +4,15 @@ class NullHandler(logging.Handler):
     def emit(self, record):
         pass
 
+def exists(yaml, ifname):
+    """ Returns true if ifname exists as a loopback """
+    try:
+        if ifname in yaml['loopbacks']:
+            return True
+    except:
+        pass
+    return False
+
 
 def loopback(args, yaml):
     result = True
@@ -12,4 +21,6 @@ def loopback(args, yaml):
     logger.addHandler(NullHandler())
 
     logger.debug("Validating loopbacks...")
+    for ifname, iface in yaml['loopbacks'].items():
+        logger.debug("loopbacks %s" % iface)
     return result, msgs