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path: root/src/op_mode/show_nat_rules.py
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-rwxr-xr-xsrc/op_mode/show_nat_rules.py22
1 files changed, 16 insertions, 6 deletions
diff --git a/src/op_mode/show_nat_rules.py b/src/op_mode/show_nat_rules.py
index 4bf9ff3b5..68cff61c8 100755
--- a/src/op_mode/show_nat_rules.py
+++ b/src/op_mode/show_nat_rules.py
@@ -41,16 +41,26 @@ if args.source or args.destination:
for idx in range(0, len(data_json)):
data = data_json[idx]
- # If there is no index 3, we don't think this is the record we need to check
- if len(data['expr']) <= 3:
- continue
-
# The following key values must exist
- for keys in ['comment', 'chain', 'expr']:
- if keys not in data:
+ # When the rule JSON does not have some keys, this is not a rule we can work with
+ continue_rule = False
+ for key in ['comment', 'chain', 'expr']:
+ if key not in data:
+ continue_rule = True
continue
+ if continue_rule:
+ continue
comment = data['comment']
+
+ # Check the annotation to see if the annotation format is created by VYOS
+ continue_rule = True
+ for comment_prefix in ['SRC-NAT-', 'DST-NAT-']:
+ if comment_prefix in comment:
+ continue_rule = False
+ if continue_rule:
+ continue
+
rule = int(''.join(list(filter(str.isdigit, comment))))
chain = data['chain']
if not (args.source and chain == 'POSTROUTING') or (not args.source and chain == 'PREROUTING'):