diff options
Diffstat (limited to 'src/op_mode/nat.py')
| -rwxr-xr-x | src/op_mode/nat.py | 37 |
1 files changed, 21 insertions, 16 deletions
diff --git a/src/op_mode/nat.py b/src/op_mode/nat.py index a98fc4227..dec04aa48 100755 --- a/src/op_mode/nat.py +++ b/src/op_mode/nat.py @@ -27,7 +27,7 @@ from vyos.util import dict_search import vyos.opmode -def _get_json_data(direction): +def _get_json_data(direction, family): """ Get NAT format JSON """ @@ -35,14 +35,15 @@ def _get_json_data(direction): chain = 'POSTROUTING' if direction == 'destination': chain = 'PREROUTING' - return cmd(f'sudo nft --json list chain ip nat {chain}') + family = 'ip6' if family == 'inet6' else 'ip' + return cmd(f'sudo nft --json list chain {family} nat {chain}') -def _get_raw_data_rules(direction): +def _get_raw_data_rules(direction, family): """Get interested rules :returns dict """ - data = _get_json_data(direction) + data = _get_json_data(direction, family) data_dict = json.loads(data) rules = [] for rule in data_dict['nftables']: @@ -51,10 +52,12 @@ def _get_raw_data_rules(direction): return rules -def _get_formatted_output_rules(data, direction): +def _get_formatted_output_rules(data, direction, family): # Add default values before loop sport, dport, proto = 'any', 'any', 'any' - saddr, daddr = '0.0.0.0/0', '0.0.0.0/0' + saddr = '::/0' if family == 'inet6' else '0.0.0.0/0' + daddr = '::/0' if family == 'inet6' else '0.0.0.0/0' + data_entries = [] for rule in data: if 'comment' in rule['rule']: @@ -69,11 +72,13 @@ def _get_formatted_output_rules(data, direction): if 'prefix' in match['right'] or 'set' in match['right']: # Merge dict src/dst l3_l4 parameters my_dict = {**match['left']['payload'], **match['right']} + my_dict['op'] = match['op'] + op = '!' if my_dict.get('op') == '!=' else '' proto = my_dict.get('protocol').upper() if my_dict['field'] == 'saddr': - saddr = f'{my_dict["prefix"]["addr"]}/{my_dict["prefix"]["len"]}' + saddr = f'{op}{my_dict["prefix"]["addr"]}/{my_dict["prefix"]["len"]}' elif my_dict['field'] == 'daddr': - daddr = f'{my_dict["prefix"]["addr"]}/{my_dict["prefix"]["len"]}' + daddr = f'{op}{my_dict["prefix"]["addr"]}/{my_dict["prefix"]["len"]}' elif my_dict['field'] == 'sport': # Port range or single port if jmespath.search('set[*].range', my_dict): @@ -96,8 +101,8 @@ def _get_formatted_output_rules(data, direction): if jmespath.search('left.payload.field', match) == 'daddr': daddr = match.get('right') else: - saddr = '0.0.0.0/0' - daddr = '0.0.0.0/0' + saddr = '::/0' if family == 'inet6' else '0.0.0.0/0' + daddr = '::/0' if family == 'inet6' else '0.0.0.0/0' sport = 'any' dport = 'any' proto = 'any' @@ -175,16 +180,16 @@ def _get_formatted_output_statistics(data, direction): return output -def show_rules(raw: bool, direction: str): - nat_rules = _get_raw_data_rules(direction) +def show_rules(raw: bool, direction: str, family: str): + nat_rules = _get_raw_data_rules(direction, family) if raw: return nat_rules else: - return _get_formatted_output_rules(nat_rules, direction) + return _get_formatted_output_rules(nat_rules, direction, family) -def show_statistics(raw: bool, direction: str): - nat_statistics = _get_raw_data_rules(direction) +def show_statistics(raw: bool, direction: str, family: str): + nat_statistics = _get_raw_data_rules(direction, family) if raw: return nat_statistics else: @@ -196,6 +201,6 @@ if __name__ == '__main__': res = vyos.opmode.run(sys.modules[__name__]) if res: print(res) - except ValueError as e: + except (ValueError, vyos.opmode.Error) as e: print(e) sys.exit(1) |