Add loopbacks

example.yaml

@@ -51,3 +51,10 @@ interfaces:
           dot1ad: 1000
           dot1q: 1000
           inner-dot1q: 1000
+
+loopbacks:
+  loop0:
+    description: "Core: example.ipng.ch"
+    mtu: 9216
+    lcp: "loop0"
+    addresses: [ 192.0.2.1/32, 2001:db8:1::1/128 ]

schema.yaml

@@ -1,5 +1,12 @@
 interfaces: map(include('interface'),key=str(matches='.*GigabitEthernet[0-9]+/[0-9]+/[0-9]+|BondEthernet[0-9]+'))
 bondethernets: map(include('bondethernet'),key=str(matches='BondEthernet[0-9]+'))
+loopbacks: map(include('loopback'),key=str(matches='loop[0-9]+'))
+---
+loopback:
+  description: str(exclude='\'"',required=False)
+  lcp: str(max=8,matches='[a-z]+[a-z0-9-]{,7}',required=False)
+  mtu: int(min=128,max=9216)
+  addresses: list(ip_interface(),min=1,max=6,required=False)
 ---
 bondethernet:
   description: str(exclude='\'"',required=False)

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