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514 lines
17 KiB
Python
514 lines
17 KiB
Python
#!/usr/bin/python
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# -*- coding: utf-8 -*-
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# (c) 2013, Adam Miller (maxamillion@fedoraproject.org)
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#
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# This file is part of Ansible
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#
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# Ansible is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# Ansible is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with Ansible. If not, see <http://www.gnu.org/licenses/>.
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DOCUMENTATION = '''
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---
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module: firewalld
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short_description: Manage arbitrary ports/services with firewalld
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description:
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- This module allows for addition or deletion of services and ports either tcp or udp in either running or permanent firewalld rules.
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version_added: "1.4"
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options:
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service:
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description:
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- "Name of a service to add/remove to/from firewalld - service must be listed in /etc/services."
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required: false
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default: null
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port:
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description:
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- "Name of a port or port range to add/remove to/from firewalld. Must be in the form PORT/PROTOCOL or PORT-PORT/PROTOCOL for port ranges."
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required: false
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default: null
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rich_rule:
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description:
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- "Rich rule to add/remove to/from firewalld."
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required: false
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default: null
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source:
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description:
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- 'The source/network you would like to add/remove to/from firewalld'
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required: false
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default: null
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version_added: "2.0"
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interface:
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description:
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- 'The interface you would like to add/remove to/from a zone in firewalld'
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required: false
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default: null
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version_added: "2.1"
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zone:
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description:
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- 'The firewalld zone to add/remove to/from (NOTE: default zone can be configured per system but "public" is default from upstream. Available choices can be extended based on per-system configs, listed here are "out of the box" defaults).'
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required: false
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default: system-default(public)
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choices: [ "work", "drop", "internal", "external", "trusted", "home", "dmz", "public", "block" ]
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permanent:
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description:
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- "Should this configuration be in the running firewalld configuration or persist across reboots."
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required: false
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default: null
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immediate:
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description:
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- "Should this configuration be applied immediately, if set as permanent"
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required: false
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default: false
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version_added: "1.9"
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state:
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description:
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- "Should this port accept(enabled) or reject(disabled) connections."
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required: true
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choices: [ "enabled", "disabled" ]
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timeout:
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description:
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- "The amount of time the rule should be in effect for when non-permanent."
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required: false
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default: 0
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notes:
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- Not tested on any Debian based system.
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- Requires the python2 bindings of firewalld, who may not be installed by default if the distribution switched to python 3
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requirements: [ 'firewalld >= 0.2.11' ]
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author: "Adam Miller (@maxamillion)"
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'''
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EXAMPLES = '''
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- firewalld: service=https permanent=true state=enabled
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- firewalld: port=8081/tcp permanent=true state=disabled
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- firewalld: port=161-162/udp permanent=true state=enabled
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- firewalld: zone=dmz service=http permanent=true state=enabled
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- firewalld: rich_rule='rule service name="ftp" audit limit value="1/m" accept' permanent=true state=enabled
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- firewalld: source='192.168.1.0/24' zone=internal state=enabled
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- firewalld: zone=trusted interface=eth2 permanent=true state=enabled
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'''
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import os
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import re
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try:
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import firewall.config
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FW_VERSION = firewall.config.VERSION
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from firewall.client import Rich_Rule
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from firewall.client import FirewallClient
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fw = FirewallClient()
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if not fw.connected:
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HAS_FIREWALLD = False
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else:
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HAS_FIREWALLD = True
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except ImportError:
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HAS_FIREWALLD = False
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################
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# port handling
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#
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def get_port_enabled(zone, port_proto):
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if port_proto in fw.getPorts(zone):
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return True
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else:
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return False
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def set_port_enabled(zone, port, protocol, timeout):
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fw.addPort(zone, port, protocol, timeout)
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def set_port_disabled(zone, port, protocol):
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fw.removePort(zone, port, protocol)
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def get_port_enabled_permanent(zone, port_proto):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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if tuple(port_proto) in fw_settings.getPorts():
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return True
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else:
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return False
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def set_port_enabled_permanent(zone, port, protocol):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.addPort(port, protocol)
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fw_zone.update(fw_settings)
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def set_port_disabled_permanent(zone, port, protocol):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.removePort(port, protocol)
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fw_zone.update(fw_settings)
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####################
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# source handling
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#
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def get_source(zone, source):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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if source in fw_settings.getSources():
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return True
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else:
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return False
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def add_source(zone, source):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.addSource(source)
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fw_zone.update(fw_settings)
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def remove_source(zone, source):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.removeSource(source)
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fw_zone.update(fw_settings)
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####################
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# interface handling
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#
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def get_interface(zone, interface):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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if interface in fw_settings.getInterfaces():
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return True
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else:
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return False
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def add_interface(zone, interface):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.addInterface(interface)
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fw_zone.update(fw_settings)
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def remove_interface(zone, interface):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.removeInterface(interface)
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fw_zone.update(fw_settings)
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####################
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# service handling
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#
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def get_service_enabled(zone, service):
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if service in fw.getServices(zone):
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return True
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else:
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return False
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def set_service_enabled(zone, service, timeout):
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fw.addService(zone, service, timeout)
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def set_service_disabled(zone, service):
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fw.removeService(zone, service)
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def get_service_enabled_permanent(zone, service):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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if service in fw_settings.getServices():
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return True
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else:
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return False
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def set_service_enabled_permanent(zone, service):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.addService(service)
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fw_zone.update(fw_settings)
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def set_service_disabled_permanent(zone, service):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.removeService(service)
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fw_zone.update(fw_settings)
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####################
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# rich rule handling
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#
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def get_rich_rule_enabled(zone, rule):
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# Convert the rule string to standard format
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# before checking whether it is present
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rule = str(Rich_Rule(rule_str=rule))
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if rule in fw.getRichRules(zone):
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return True
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else:
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return False
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def set_rich_rule_enabled(zone, rule, timeout):
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fw.addRichRule(zone, rule, timeout)
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def set_rich_rule_disabled(zone, rule):
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fw.removeRichRule(zone, rule)
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def get_rich_rule_enabled_permanent(zone, rule):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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# Convert the rule string to standard format
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# before checking whether it is present
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rule = str(Rich_Rule(rule_str=rule))
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if rule in fw_settings.getRichRules():
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return True
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else:
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return False
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def set_rich_rule_enabled_permanent(zone, rule):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.addRichRule(rule)
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fw_zone.update(fw_settings)
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def set_rich_rule_disabled_permanent(zone, rule):
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fw_zone = fw.config().getZoneByName(zone)
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fw_settings = fw_zone.getSettings()
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fw_settings.removeRichRule(rule)
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fw_zone.update(fw_settings)
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def main():
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module = AnsibleModule(
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argument_spec = dict(
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service=dict(required=False,default=None),
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port=dict(required=False,default=None),
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rich_rule=dict(required=False,default=None),
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zone=dict(required=False,default=None),
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immediate=dict(type='bool',default=False),
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source=dict(required=False,default=None),
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permanent=dict(type='bool',required=False,default=None),
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state=dict(choices=['enabled', 'disabled'], required=True),
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timeout=dict(type='int',required=False,default=0),
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interface=dict(required=False,default=None),
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),
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supports_check_mode=True
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)
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if module.params['source'] == None and module.params['permanent'] == None:
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module.fail_json(msg='permanent is a required parameter')
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if module.params['interface'] != None and module.params['zone'] == None:
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module.fail(msg='zone is a required parameter')
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if not HAS_FIREWALLD:
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module.fail_json(msg='firewalld and its python 2 module are required for this module')
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## Pre-run version checking
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if FW_VERSION < "0.2.11":
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module.fail_json(msg='unsupported version of firewalld, requires >= 2.0.11')
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## Global Vars
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changed=False
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msgs = []
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service = module.params['service']
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rich_rule = module.params['rich_rule']
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source = module.params['source']
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if module.params['port'] != None:
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port, protocol = module.params['port'].split('/')
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if protocol == None:
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module.fail_json(msg='improper port format (missing protocol?)')
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else:
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port = None
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if module.params['zone'] != None:
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zone = module.params['zone']
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else:
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zone = fw.getDefaultZone()
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permanent = module.params['permanent']
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desired_state = module.params['state']
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immediate = module.params['immediate']
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timeout = module.params['timeout']
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interface = module.params['interface']
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modification_count = 0
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if service != None:
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modification_count += 1
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if port != None:
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modification_count += 1
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if rich_rule != None:
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modification_count += 1
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if interface != None:
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modification_count += 1
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if modification_count > 1:
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module.fail_json(msg='can only operate on port, service, rich_rule or interface at once')
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if service != None:
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if permanent:
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is_enabled = get_service_enabled_permanent(zone, service)
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msgs.append('Permanent operation')
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if desired_state == "enabled":
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if is_enabled == False:
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if module.check_mode:
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module.exit_json(changed=True)
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set_service_enabled_permanent(zone, service)
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changed=True
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elif desired_state == "disabled":
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if is_enabled == True:
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if module.check_mode:
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module.exit_json(changed=True)
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set_service_disabled_permanent(zone, service)
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changed=True
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if immediate or not permanent:
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is_enabled = get_service_enabled(zone, service)
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msgs.append('Non-permanent operation')
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if desired_state == "enabled":
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if is_enabled == False:
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if module.check_mode:
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module.exit_json(changed=True)
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set_service_enabled(zone, service, timeout)
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changed=True
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elif desired_state == "disabled":
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if is_enabled == True:
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if module.check_mode:
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module.exit_json(changed=True)
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set_service_disabled(zone, service)
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changed=True
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if changed == True:
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msgs.append("Changed service %s to %s" % (service, desired_state))
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if source != None:
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is_enabled = get_source(zone, source)
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if desired_state == "enabled":
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if is_enabled == False:
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if module.check_mode:
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module.exit_json(changed=True)
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add_source(zone, source)
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changed=True
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msgs.append("Added %s to zone %s" % (source, zone))
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elif desired_state == "disabled":
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if is_enabled == True:
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if module.check_mode:
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module.exit_json(changed=True)
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remove_source(zone, source)
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changed=True
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msgs.append("Removed %s from zone %s" % (source, zone))
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if port != None:
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if permanent:
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is_enabled = get_port_enabled_permanent(zone, [port, protocol])
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msgs.append('Permanent operation')
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if desired_state == "enabled":
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if is_enabled == False:
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if module.check_mode:
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module.exit_json(changed=True)
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set_port_enabled_permanent(zone, port, protocol)
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changed=True
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elif desired_state == "disabled":
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if is_enabled == True:
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if module.check_mode:
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module.exit_json(changed=True)
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set_port_disabled_permanent(zone, port, protocol)
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changed=True
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if immediate or not permanent:
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is_enabled = get_port_enabled(zone, [port,protocol])
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msgs.append('Non-permanent operation')
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if desired_state == "enabled":
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if is_enabled == False:
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if module.check_mode:
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module.exit_json(changed=True)
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set_port_enabled(zone, port, protocol, timeout)
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changed=True
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elif desired_state == "disabled":
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if is_enabled == True:
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if module.check_mode:
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module.exit_json(changed=True)
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set_port_disabled(zone, port, protocol)
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changed=True
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if changed == True:
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msgs.append("Changed port %s to %s" % ("%s/%s" % (port, protocol), \
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desired_state))
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if rich_rule != None:
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if permanent:
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is_enabled = get_rich_rule_enabled_permanent(zone, rich_rule)
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msgs.append('Permanent operation')
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if desired_state == "enabled":
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if is_enabled == False:
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if module.check_mode:
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module.exit_json(changed=True)
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set_rich_rule_enabled_permanent(zone, rich_rule)
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changed=True
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elif desired_state == "disabled":
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if is_enabled == True:
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if module.check_mode:
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module.exit_json(changed=True)
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set_rich_rule_disabled_permanent(zone, rich_rule)
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changed=True
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if immediate or not permanent:
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is_enabled = get_rich_rule_enabled(zone, rich_rule)
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msgs.append('Non-permanent operation')
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if desired_state == "enabled":
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if is_enabled == False:
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if module.check_mode:
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module.exit_json(changed=True)
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set_rich_rule_enabled(zone, rich_rule, timeout)
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changed=True
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elif desired_state == "disabled":
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if is_enabled == True:
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if module.check_mode:
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module.exit_json(changed=True)
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set_rich_rule_disabled(zone, rich_rule)
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changed=True
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if changed == True:
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msgs.append("Changed rich_rule %s to %s" % (rich_rule, desired_state))
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if interface != None:
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is_enabled = get_interface(zone, interface)
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if desired_state == "enabled":
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if is_enabled == False:
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if module.check_mode:
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module.exit_json(changed=True)
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add_interface(zone, interface)
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changed=True
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msgs.append("Added %s to zone %s" % (interface, zone))
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elif desired_state == "disabled":
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if is_enabled == True:
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if module.check_mode:
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module.exit_json(changed=True)
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remove_interface(zone, interface)
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changed=True
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msgs.append("Removed %s from zone %s" % (interface, zone))
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module.exit_json(changed=changed, msg=', '.join(msgs))
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#################################################
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# import module snippets
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from ansible.module_utils.basic import *
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main()
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