diff options
Diffstat (limited to 'src/op_mode/nat.py')
| -rwxr-xr-x | src/op_mode/nat.py | 52 |
1 files changed, 31 insertions, 21 deletions
diff --git a/src/op_mode/nat.py b/src/op_mode/nat.py index f899eb3dc..c92795745 100755 --- a/src/op_mode/nat.py +++ b/src/op_mode/nat.py @@ -18,23 +18,23 @@ import jmespath import json import sys import xmltodict +import typing -from sys import exit from tabulate import tabulate -from vyos.configquery import ConfigTreeQuery +import vyos.opmode +from vyos.configquery import ConfigTreeQuery from vyos.util import cmd from vyos.util import dict_search -import vyos.opmode - - base = 'nat' unconf_message = 'NAT is not configured' +ArgDirection = typing.Literal['source', 'destination'] +ArgFamily = typing.Literal['inet', 'inet6'] -def _get_xml_translation(direction, family): +def _get_xml_translation(direction, family, address=None): """ Get conntrack XML output --src-nat|--dst-nat """ @@ -42,7 +42,10 @@ def _get_xml_translation(direction, family): opt = '--src-nat' if direction == 'destination': opt = '--dst-nat' - return cmd(f'sudo conntrack --dump --family {family} {opt} --output xml') + tmp = f'conntrack --dump --family {family} {opt} --output xml' + if address: + tmp += f' --src {address}' + return cmd(tmp) def _xml_to_dict(xml): @@ -66,7 +69,7 @@ def _get_json_data(direction, family): if direction == 'destination': chain = 'PREROUTING' family = 'ip6' if family == 'inet6' else 'ip' - return cmd(f'sudo nft --json list chain {family} vyos_nat {chain}') + return cmd(f'nft --json list chain {family} vyos_nat {chain}') def _get_raw_data_rules(direction, family): @@ -82,11 +85,11 @@ def _get_raw_data_rules(direction, family): return rules -def _get_raw_translation(direction, family): +def _get_raw_translation(direction, family, address=None): """ Return: dictionary """ - xml = _get_xml_translation(direction, family) + xml = _get_xml_translation(direction, family, address) if len(xml) == 0: output = {'conntrack': { @@ -231,7 +234,7 @@ def _get_formatted_output_statistics(data, direction): return output -def _get_formatted_translation(dict_data, nat_direction, family): +def _get_formatted_translation(dict_data, nat_direction, family, verbose): data_entries = [] if 'error' in dict_data['conntrack']: return 'Entries not found' @@ -269,14 +272,14 @@ def _get_formatted_translation(dict_data, nat_direction, family): reply_src = f'{reply_src}:{reply_sport}' if reply_sport else reply_src reply_dst = f'{reply_dst}:{reply_dport}' if reply_dport else reply_dst state = meta['state'] if 'state' in meta else '' - mark = meta['mark'] + mark = meta.get('mark', '') zone = meta['zone'] if 'zone' in meta else '' if nat_direction == 'source': - data_entries.append( - [orig_src, reply_dst, proto, timeout, mark, zone]) + tmp = [orig_src, reply_dst, proto, timeout, mark, zone] + data_entries.append(tmp) elif nat_direction == 'destination': - data_entries.append( - [orig_dst, reply_src, proto, timeout, mark, zone]) + tmp = [orig_dst, reply_src, proto, timeout, mark, zone] + data_entries.append(tmp) headers = ["Pre-NAT", "Post-NAT", "Proto", "Timeout", "Mark", "Zone"] output = tabulate(data_entries, headers, numalign="left") @@ -297,7 +300,7 @@ def _verify(func): @_verify -def show_rules(raw: bool, direction: str, family: str): +def show_rules(raw: bool, direction: ArgDirection, family: ArgFamily): nat_rules = _get_raw_data_rules(direction, family) if raw: return nat_rules @@ -306,7 +309,7 @@ def show_rules(raw: bool, direction: str, family: str): @_verify -def show_statistics(raw: bool, direction: str, family: str): +def show_statistics(raw: bool, direction: ArgDirection, family: ArgFamily): nat_statistics = _get_raw_data_rules(direction, family) if raw: return nat_statistics @@ -315,13 +318,20 @@ def show_statistics(raw: bool, direction: str, family: str): @_verify -def show_translations(raw: bool, direction: str, family: str): +def show_translations(raw: bool, direction: ArgDirection, + family: ArgFamily, + address: typing.Optional[str], + verbose: typing.Optional[bool]): family = 'ipv6' if family == 'inet6' else 'ipv4' - nat_translation = _get_raw_translation(direction, family) + nat_translation = _get_raw_translation(direction, + family=family, + address=address) + if raw: return nat_translation else: - return _get_formatted_translation(nat_translation, direction, family) + return _get_formatted_translation(nat_translation, direction, family, + verbose) if __name__ == '__main__': |