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ansible/library/system/firewalld

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#!/usr/bin/python
# -*- coding: utf-8 -*-
# (c) 2013, Adam Miller (maxamillion@fedoraproject.org)
#
# This file is part of Ansible
#
# Ansible is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# Ansible 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 Ansible. If not, see <http://www.gnu.org/licenses/>.
DOCUMENTATION = '''
---
module: firewalld
short_description: Manage arbitrary ports/services with firewalld
description:
- This module allows for addition or deletion of services and ports either tcp or udp in either running or permanent firewalld rules
version_added: "1.4"
options:
service:
description:
- "Name of a service to add/remove to/from firewalld - service must be listed in /etc/services"
required: false
default: null
port:
description:
- "Name of a port to add/remove to/from firewalld must be in the form PORT/PROTOCOL"
required: false
default: null
rich_rule:
description:
- "Rich rule to add/remove to/from firewalld"
required: false
default: null
zone:
description:
- '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).'
required: false
default: system-default(public)
choices: [ "work", "drop", "internal", "external", "trusted", "home", "dmz", "public", "block"]
permanent:
description:
- "Should this configuration be in the running firewalld configuration or persist across reboots"
required: true
default: true
state:
description:
- "Should this port accept(enabled) or reject(disabled) connections"
required: true
default: enabled
timeout:
description:
- "The amount of time the rule should be in effect for when non-permanent"
required: false
default: 0
notes:
- Not tested on any debian based system
requirements: [ firewalld >= 0.2.11 ]
author: Adam Miller <maxamillion@fedoraproject.org>
'''
EXAMPLES = '''
- firewalld: service=https permanent=true state=enabled
- firewalld: port=8081/tcp permanent=true state=disabled
- firewalld: zone=dmz service=http permanent=true state=enabled
- firewalld: rich_rule='rule service name="ftp" audit limit value="1/m" accept' permanent=true state=enabled
'''
import os
import re
import sys
try:
import firewall.config
FW_VERSION = firewall.config.VERSION
from firewall.client import FirewallClient
fw = FirewallClient()
except ImportError:
print "fail=True msg='firewalld required for this module'"
sys.exit(1)
################
# port handling
#
def get_port_enabled(zone, port_proto):
if port_proto in fw.getPorts(zone):
return True
else:
return False
def set_port_enabled(zone, port, protocol, timeout):
fw.addPort(zone, port, protocol, timeout)
def set_port_disabled(zone, port, protocol):
fw.removePort(zone, port, protocol)
def get_port_enabled_permanent(zone, port_proto):
fw_zone = fw.config().getZoneByName(zone)
fw_settings = fw_zone.getSettings()
if tuple(port_proto) in fw_settings.getPorts():
return True
else:
return False
def set_port_enabled_permanent(zone, port, protocol):
fw_zone = fw.config().getZoneByName(zone)
fw_settings = fw_zone.getSettings()
fw_settings.addPort(port, protocol)
fw_zone.update(fw_settings)
def set_port_disabled_permanent(zone, port, protocol):
fw_zone = fw.config().getZoneByName(zone)
fw_settings = fw_zone.getSettings()
fw_settings.removePort(port, protocol)
fw_zone.update(fw_settings)
####################
# service handling
#
def get_service_enabled(zone, service):
if service in fw.getServices(zone):
return True
else:
return False
def set_service_enabled(zone, service, timeout):
fw.addService(zone, service, timeout)
def set_service_disabled(zone, service):
fw.removeService(zone, service)
def get_service_enabled_permanent(zone, service):
fw_zone = fw.config().getZoneByName(zone)
fw_settings = fw_zone.getSettings()
if service in fw_settings.getServices():
return True
else:
return False
def set_service_enabled_permanent(zone, service):
fw_zone = fw.config().getZoneByName(zone)
fw_settings = fw_zone.getSettings()
fw_settings.addService(service)
fw_zone.update(fw_settings)
def set_service_disabled_permanent(zone, service):
fw_zone = fw.config().getZoneByName(zone)
fw_settings = fw_zone.getSettings()
fw_settings.removeService(service)
fw_zone.update(fw_settings)
####################
# rich rule handling
#
def get_rich_rule_enabled(zone, rule):
if rule in fw.getRichRules(zone):
return True
else:
return False
def set_rich_rule_enabled(zone, rule, timeout):
fw.addRichRule(zone, rule, timeout)
def set_rich_rule_disabled(zone, rule):
fw.removeRichRule(zone, rule)
def get_rich_rule_enabled_permanent(zone, rule):
fw_zone = fw.config().getZoneByName(zone)
fw_settings = fw_zone.getSettings()
if rule in fw_settings.getRichRules():
return True
else:
return False
def set_rich_rule_enabled_permanent(zone, rule):
fw_zone = fw.config().getZoneByName(zone)
fw_settings = fw_zone.getSettings()
fw_settings.addRichRule(rule)
fw_zone.update(fw_settings)
def set_rich_rule_disabled_permanent(zone, rule):
fw_zone = fw.config().getZoneByName(zone)
fw_settings = fw_zone.getSettings()
fw_settings.removeRichRule(rule)
fw_zone.update(fw_settings)
def main():
module = AnsibleModule(
argument_spec = dict(
service=dict(required=False,default=None),
port=dict(required=False,default=None),
rich_rule=dict(required=False,default=None),
zone=dict(required=False,default=None),
permanent=dict(type='bool',required=True),
state=dict(choices=['enabled', 'disabled'], required=True),
timeout=dict(type='int',required=False,default=0),
),
supports_check_mode=True
)
## Pre-run version checking
if FW_VERSION < "0.2.11":
module.fail_json(msg='unsupported version of firewalld, requires >= 2.0.11')
## Global Vars
changed=False
msgs = []
service = module.params['service']
rich_rule = module.params['rich_rule']
if module.params['port'] != None:
port, protocol = module.params['port'].split('/')
if protocol == None:
module.fail_json(msg='improper port format (missing protocol?)')
else:
port = None
if module.params['zone'] != None:
zone = module.params['zone']
else:
zone = fw.getDefaultZone()
permanent = module.params['permanent']
desired_state = module.params['state']
timeout = module.params['timeout']
## Check for firewalld running
try:
if fw.connected == False:
module.fail_json(msg='firewalld service must be running')
except AttributeError:
module.fail_json(msg="firewalld connection can't be established,\
version likely too old. Requires firewalld >= 2.0.11")
modification_count = 0
if service != None:
modification_count += 1
if port != None:
modification_count += 1
if rich_rule != None:
modification_count += 1
if modification_count > 1:
module.fail_json(msg='can only operate on port, service or rich_rule at once')
if service != None:
if permanent:
is_enabled = get_service_enabled_permanent(zone, service)
msgs.append('Permanent operation')
if desired_state == "enabled":
if is_enabled == False:
if module.check_mode:
module.exit_json(changed=True)
set_service_enabled_permanent(zone, service)
changed=True
elif desired_state == "disabled":
if is_enabled == True:
if module.check_mode:
module.exit_json(changed=True)
set_service_disabled_permanent(zone, service)
changed=True
else:
is_enabled = get_service_enabled(zone, service)
msgs.append('Non-permanent operation')
if desired_state == "enabled":
if is_enabled == False:
if module.check_mode:
module.exit_json(changed=True)
set_service_enabled(zone, service, timeout)
changed=True
elif desired_state == "disabled":
if is_enabled == True:
if module.check_mode:
module.exit_json(changed=True)
set_service_disabled(zone, service)
changed=True
if changed == True:
msgs.append("Changed service %s to %s" % (service, desired_state))
if port != None:
if permanent:
is_enabled = get_port_enabled_permanent(zone, [port, protocol])
msgs.append('Permanent operation')
if desired_state == "enabled":
if is_enabled == False:
if module.check_mode:
module.exit_json(changed=True)
set_port_enabled_permanent(zone, port, protocol)
changed=True
elif desired_state == "disabled":
if is_enabled == True:
if module.check_mode:
module.exit_json(changed=True)
set_port_disabled_permanent(zone, port, protocol)
changed=True
else:
is_enabled = get_port_enabled(zone, [port,protocol])
msgs.append('Non-permanent operation')
if desired_state == "enabled":
if is_enabled == False:
if module.check_mode:
module.exit_json(changed=True)
set_port_enabled(zone, port, protocol, timeout)
changed=True
elif desired_state == "disabled":
if is_enabled == True:
if module.check_mode:
module.exit_json(changed=True)
set_port_disabled(zone, port, protocol)
changed=True
if changed == True:
msgs.append("Changed port %s to %s" % ("%s/%s" % (port, protocol), \
desired_state))
if rich_rule != None:
if permanent:
is_enabled = get_rich_rule_enabled_permanent(zone, rich_rule)
msgs.append('Permanent operation')
if desired_state == "enabled":
if is_enabled == False:
if module.check_mode:
module.exit_json(changed=True)
set_rich_rule_enabled_permanent(zone, rich_rule)
changed=True
elif desired_state == "disabled":
if is_enabled == True:
if module.check_mode:
module.exit_json(changed=True)
set_rich_rule_disabled_permanent(zone, rich_rule)
changed=True
else:
is_enabled = get_rich_rule_enabled(zone, rich_rule)
msgs.append('Non-permanent operation')
if desired_state == "enabled":
if is_enabled == False:
if module.check_mode:
module.exit_json(changed=True)
set_rich_rule_enabled(zone, rich_rule, timeout)
changed=True
elif desired_state == "disabled":
if is_enabled == True:
if module.check_mode:
module.exit_json(changed=True)
set_rich_rule_disabled(zone, rich_rule)
changed=True
if changed == True:
msgs.append("Changed rich_rule %s to %s" % (rich_rule, desired_state))
module.exit_json(changed=changed, msg=', '.join(msgs))
#################################################
# import module snippets
from ansible.module_utils.basic import *
main()
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