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-rw-r--r--python/vyos/firewall.py22
1 files changed, 18 insertions, 4 deletions
diff --git a/python/vyos/firewall.py b/python/vyos/firewall.py
index 4aa509fe2..53ff8259e 100644
--- a/python/vyos/firewall.py
+++ b/python/vyos/firewall.py
@@ -272,20 +272,34 @@ def parse_rule(rule_conf, hook, fw_name, rule_id, ip_name):
output.append(f'ip6 hoplimit {operator} {value}')
if 'inbound_interface' in rule_conf:
+ operator = ''
if 'interface_name' in rule_conf['inbound_interface']:
iiface = rule_conf['inbound_interface']['interface_name']
- output.append(f'iifname {{{iiface}}}')
+ if iiface[0] == '!':
+ operator = '!='
+ iiface = iiface[1:]
+ output.append(f'iifname {operator} {{{iiface}}}')
else:
iiface = rule_conf['inbound_interface']['interface_group']
- output.append(f'iifname @I_{iiface}')
+ if iiface[0] == '!':
+ operator = '!='
+ iiface = iiface[1:]
+ output.append(f'iifname {operator} @I_{iiface}')
if 'outbound_interface' in rule_conf:
+ operator = ''
if 'interface_name' in rule_conf['outbound_interface']:
oiface = rule_conf['outbound_interface']['interface_name']
- output.append(f'oifname {{{oiface}}}')
+ if oiface[0] == '!':
+ operator = '!='
+ oiface = oiface[1:]
+ output.append(f'oifname {operator} {{{oiface}}}')
else:
oiface = rule_conf['outbound_interface']['interface_group']
- output.append(f'oifname @I_{oiface}')
+ if oiface[0] == '!':
+ operator = '!='
+ oiface = oiface[1:]
+ output.append(f'oifname {operator} @I_{oiface}')
if 'ttl' in rule_conf:
operators = {'eq': '==', 'gt': '>', 'lt': '<'}