ospf: T6066: can not define the same network in different areas

Users can not (FRR fails) commit the same network belonging to different OSPF
areas. Add verify() check to prevent this.

(cherry picked from commit c6d8d9c012da1a7566eec2dff70385457f073e64)

1 files changed, 7 insertions, 0 deletions

diff --git a/src/conf_mode/protocols_ospf.py b/src/conf_mode/protocols_ospf.py
index 93fc4dba6..ee29f8198 100755
--- a/src/conf_mode/protocols_ospf.py
+++ b/src/conf_mode/protocols_ospf.py
@@ -129,6 +129,7 @@ def verify(ospf):
 
     # Validate if configured Access-list exists
     if 'area' in ospf:
+          networks = []
           for area, area_config in ospf['area'].items():
               if 'import_list' in area_config:
                   acl_import = area_config['import_list']
@@ -137,6 +138,12 @@ def verify(ospf):
                   acl_export = area_config['export_list']
                   if acl_export: verify_access_list(acl_export, ospf)
 
+              if 'network' in area_config:
+                  for network in area_config['network']:
+                      if network in networks:
+                          raise ConfigError(f'Network "{network}" already defined in different area!')
+                      networks.append(network)
+
     if 'interface' in ospf:
         for interface, interface_config in ospf['interface'].items():
             verify_interface_exists(interface)