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-rwxr-xr-xsrc/op_mode/zone.py215
1 files changed, 215 insertions, 0 deletions
diff --git a/src/op_mode/zone.py b/src/op_mode/zone.py
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+++ b/src/op_mode/zone.py
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+#!/usr/bin/env python3
+#
+# Copyright (C) 2023 VyOS maintainers and contributors
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 or later as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+import typing
+import sys
+import vyos.opmode
+
+import tabulate
+from vyos.configquery import ConfigTreeQuery
+from vyos.util import dict_search_args
+from vyos.util import dict_search
+
+
+def get_config_zone(conf, name=None):
+ config_path = ['firewall', 'zone']
+ if name:
+ config_path += [name]
+
+ zone_policy = conf.get_config_dict(config_path, key_mangling=('-', '_'),
+ get_first_key=True,
+ no_tag_node_value_mangle=True)
+ return zone_policy
+
+
+def _convert_one_zone_data(zone: str, zone_config: dict) -> dict:
+ """
+ Convert config dictionary of one zone to API dictionary
+ :param zone: Zone name
+ :type zone: str
+ :param zone_config: config dictionary
+ :type zone_config: dict
+ :return: AP dictionary
+ :rtype: dict
+ """
+ list_of_rules = []
+ intrazone_dict = {}
+ if dict_search('from', zone_config):
+ for from_zone, from_zone_config in zone_config['from'].items():
+ from_zone_dict = {'name': from_zone}
+ if dict_search('firewall.name', from_zone_config):
+ from_zone_dict['firewall'] = dict_search('firewall.name',
+ from_zone_config)
+ if dict_search('firewall.ipv6_name', from_zone_config):
+ from_zone_dict['firewall_v6'] = dict_search(
+ 'firewall.ipv6_name', from_zone_config)
+ list_of_rules.append(from_zone_dict)
+
+ zone_dict = {
+ 'name': zone,
+ 'interface': dict_search('interface', zone_config),
+ 'type': 'LOCAL' if dict_search('local_zone',
+ zone_config) is not None else None,
+ }
+ if list_of_rules:
+ zone_dict['from'] = list_of_rules
+ if dict_search('intra_zone_filtering.firewall.name', zone_config):
+ intrazone_dict['firewall'] = dict_search(
+ 'intra_zone_filtering.firewall.name', zone_config)
+ if dict_search('intra_zone_filtering.firewall.ipv6_name', zone_config):
+ intrazone_dict['firewall_v6'] = dict_search(
+ 'intra_zone_filtering.firewall.ipv6_name', zone_config)
+ if intrazone_dict:
+ zone_dict['intrazone'] = intrazone_dict
+ return zone_dict
+
+
+def _convert_zones_data(zone_policies: dict) -> list:
+ """
+ Convert all config dictionary to API list of zone dictionaries
+ :param zone_policies: config dictionary
+ :type zone_policies: dict
+ :return: API list
+ :rtype: list
+ """
+ zone_list = []
+ for zone, zone_config in zone_policies.items():
+ zone_list.append(_convert_one_zone_data(zone, zone_config))
+ return zone_list
+
+
+def _convert_config(zones_config: dict, zone: str = None) -> list:
+ """
+ convert config to API list
+ :param zones_config: zones config
+ :type zones_config:
+ :param zone: zone name
+ :type zone: str
+ :return: API list
+ :rtype: list
+ """
+ if zone:
+ if zones_config:
+ output = [_convert_one_zone_data(zone, zones_config)]
+ else:
+ raise vyos.opmode.DataUnavailable(f'Zone {zone} not found')
+ else:
+ if zones_config:
+ output = _convert_zones_data(zones_config)
+ else:
+ raise vyos.opmode.UnconfiguredSubsystem(
+ 'Zone entries are not configured')
+ return output
+
+
+def output_zone_list(zone_conf: dict) -> list:
+ """
+ Format one zone row
+ :param zone_conf: zone config
+ :type zone_conf: dict
+ :return: formatted list of zones
+ :rtype: list
+ """
+ zone_info = [zone_conf['name']]
+ if zone_conf['type'] == 'LOCAL':
+ zone_info.append('LOCAL')
+ else:
+ zone_info.append("\n".join(zone_conf['interface']))
+
+ from_zone = []
+ firewall = []
+ firewall_v6 = []
+ if 'intrazone' in zone_conf:
+ from_zone.append(zone_conf['name'])
+
+ v4_name = dict_search_args(zone_conf['intrazone'], 'firewall')
+ v6_name = dict_search_args(zone_conf['intrazone'], 'firewall_v6')
+ if v4_name:
+ firewall.append(v4_name)
+ else:
+ firewall.append('')
+ if v6_name:
+ firewall_v6.append(v6_name)
+ else:
+ firewall_v6.append('')
+
+ if 'from' in zone_conf:
+ for from_conf in zone_conf['from']:
+ from_zone.append(from_conf['name'])
+
+ v4_name = dict_search_args(from_conf, 'firewall')
+ v6_name = dict_search_args(from_conf, 'firewall_v6')
+ if v4_name:
+ firewall.append(v4_name)
+ else:
+ firewall.append('')
+ if v6_name:
+ firewall_v6.append(v6_name)
+ else:
+ firewall_v6.append('')
+
+ zone_info.append("\n".join(from_zone))
+ zone_info.append("\n".join(firewall))
+ zone_info.append("\n".join(firewall_v6))
+ return zone_info
+
+
+def get_formatted_output(zone_policy: list) -> str:
+ """
+ Formatted output of all zones
+ :param zone_policy: list of zones
+ :type zone_policy: list
+ :return: formatted table with zones
+ :rtype: str
+ """
+ headers = ["Zone",
+ "Interfaces",
+ "From Zone",
+ "Firewall IPv4",
+ "Firewall IPv6"
+ ]
+ formatted_list = []
+ for zone_conf in zone_policy:
+ formatted_list.append(output_zone_list(zone_conf))
+ tabulate.PRESERVE_WHITESPACE = True
+ output = tabulate.tabulate(formatted_list, headers, numalign="left")
+ return output
+
+
+def show(raw: bool, zone: typing.Optional[str]):
+ """
+ Show zone-policy command
+ :param raw: if API
+ :type raw: bool
+ :param zone: zone name
+ :type zone: str
+ """
+ conf: ConfigTreeQuery = ConfigTreeQuery()
+ zones_config: dict = get_config_zone(conf, zone)
+ zone_policy_api: list = _convert_config(zones_config, zone)
+ if raw:
+ return zone_policy_api
+ else:
+ return get_formatted_output(zone_policy_api)
+
+
+if __name__ == '__main__':
+ try:
+ res = vyos.opmode.run(sys.modules[__name__])
+ if res:
+ print(res)
+ except (ValueError, vyos.opmode.Error) as e:
+ print(e)
+ sys.exit(1)