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path: root/src/op_mode/show_nat66_rules.py
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Diffstat (limited to 'src/op_mode/show_nat66_rules.py')
-rwxr-xr-xsrc/op_mode/show_nat66_rules.py20
1 files changed, 13 insertions, 7 deletions
diff --git a/src/op_mode/show_nat66_rules.py b/src/op_mode/show_nat66_rules.py
index cbab2d03b..fe5113015 100755
--- a/src/op_mode/show_nat66_rules.py
+++ b/src/op_mode/show_nat66_rules.py
@@ -33,17 +33,24 @@ if args.source or args.destination:
tmp = cmd('sudo nft -j list table ip6 nat')
tmp = json.loads(tmp)
- format_nat66_rule = '%-10s %-50s %-50s %-10s'
- print(format_nat66_rule % ("Rule", "Source" if args.source else "Destination", "Translation", "Outbound Interface" if args.source else "Inbound Interface"))
- print(format_nat66_rule % ("----", "------" if args.source else "-----------", "-----------", "------------------" if args.source else "-----------------"))
+ format_nat66_rule = '{0: <10} {1: <50} {2: <50} {3: <10}'
+ print(format_nat66_rule.format("Rule", "Source" if args.source else "Destination", "Translation", "Outbound Interface" if args.source else "Inbound Interface"))
+ print(format_nat66_rule.format("----", "------" if args.source else "-----------", "-----------", "------------------" if args.source else "-----------------"))
data_json = jmespath.search('nftables[?rule].rule[?chain]', tmp)
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
+
comment = data['comment']
+ rule = comment.replace('SRC-NAT66-','')
+ rule = rule.replace('DST-NAT66-','')
chain = data['chain']
if not (args.source and chain == 'POSTROUTING') or (not args.source and chain == 'PREROUTING'):
- exit(0)
+ continue
interface = dict_search('match.right', data['expr'][0])
srcdest = dict_search('match.right.prefix.addr', data['expr'][2])
if srcdest:
@@ -52,6 +59,7 @@ if args.source or args.destination:
srcdest = srcdest + '/' + str(addr_tmp)
else:
srcdest = dict_search('match.right', data['expr'][2])
+
tran_addr = dict_search('snat.addr.prefix.addr' if args.source else 'dnat.addr.prefix.addr', data['expr'][3])
if tran_addr:
addr_tmp = dict_search('snat.addr.prefix.len' if args.source else 'dnat.addr.prefix.len', data['expr'][3])
@@ -60,12 +68,10 @@ if args.source or args.destination:
else:
if 'masquerade' in data['expr'][3]:
tran_addr = 'masquerade'
- elif 'log' in data['expr'][3]:
- continue
else:
tran_addr = dict_search('snat.addr' if args.source else 'dnat.addr', data['expr'][3])
- print(format_nat66_rule % (comment, srcdest, tran_addr, interface))
+ print(format_nat66_rule.format(rule, srcdest, tran_addr, interface))
exit(0)
else: