mirror of
https://github.com/thegeeklab/ansible-later.git
synced 2024-07-03 23:50:58 +02:00
232 lines
6.7 KiB
Python
232 lines
6.7 KiB
Python
#!/usr/bin/python
|
|
|
|
# Copyright: (c) 2012, Stephen Fromm <sfromm@gmail.com>
|
|
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
|
|
|
|
from __future__ import absolute_import, division, print_function
|
|
__metaclass__ = type
|
|
|
|
ANSIBLE_METADATA = {'metadata_version': '1.1',
|
|
'status': ['stableinterface'],
|
|
'supported_by': 'core'}
|
|
|
|
DOCUMENTATION = '''
|
|
---
|
|
module: seboolean
|
|
short_description: Toggles SELinux booleans
|
|
description:
|
|
- Toggles SELinux booleans.
|
|
version_added: "0.7"
|
|
options:
|
|
name:
|
|
description:
|
|
- Name of the boolean to configure.
|
|
required: true
|
|
persistent:
|
|
description:
|
|
- Set to C(yes) if the boolean setting should survive a reboot.
|
|
type: bool
|
|
default: 'no'
|
|
state:
|
|
description:
|
|
- Desired boolean value
|
|
type: bool
|
|
required: true
|
|
notes:
|
|
- Not tested on any Debian based system.
|
|
requirements:
|
|
- libselinux-python
|
|
- libsemanage-python
|
|
author:
|
|
- Stephen Fromm (@sfromm)
|
|
'''
|
|
|
|
EXAMPLES = '''
|
|
- name: Set httpd_can_network_connect flag on and keep it persistent across reboots
|
|
seboolean:
|
|
name: httpd_can_network_connect
|
|
state: yes
|
|
persistent: yes
|
|
'''
|
|
|
|
import os
|
|
|
|
try:
|
|
import selinux
|
|
HAVE_SELINUX = True
|
|
except ImportError:
|
|
HAVE_SELINUX = False
|
|
|
|
try:
|
|
import semanage
|
|
HAVE_SEMANAGE = True
|
|
except ImportError:
|
|
HAVE_SEMANAGE = False
|
|
|
|
from ansible.module_utils.basic import AnsibleModule
|
|
from ansible.module_utils.six import binary_type
|
|
from ansible.module_utils._text import to_bytes
|
|
|
|
|
|
def has_boolean_value(module, name):
|
|
bools = []
|
|
try:
|
|
rc, bools = selinux.security_get_boolean_names()
|
|
except OSError:
|
|
module.fail_json(msg="Failed to get list of boolean names")
|
|
# work around for selinux who changed its API, see
|
|
# https://github.com/ansible/ansible/issues/25651
|
|
if len(bools) > 0:
|
|
if isinstance(bools[0], binary_type):
|
|
name = to_bytes(name)
|
|
if name in bools:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
|
|
def get_boolean_value(module, name):
|
|
state = 0
|
|
try:
|
|
state = selinux.security_get_boolean_active(name)
|
|
except OSError:
|
|
module.fail_json(msg="Failed to determine current state for boolean %s" % name)
|
|
if state == 1:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
|
|
# The following method implements what setsebool.c does to change
|
|
# a boolean and make it persist after reboot..
|
|
def semanage_boolean_value(module, name, state):
|
|
rc = 0
|
|
value = 0
|
|
if state:
|
|
value = 1
|
|
handle = semanage.semanage_handle_create()
|
|
if handle is None:
|
|
module.fail_json(msg="Failed to create semanage library handle")
|
|
try:
|
|
managed = semanage.semanage_is_managed(handle)
|
|
if managed < 0:
|
|
module.fail_json(msg="Failed to determine whether policy is manage")
|
|
if managed == 0:
|
|
if os.getuid() == 0:
|
|
module.fail_json(msg="Cannot set persistent booleans without managed policy")
|
|
else:
|
|
module.fail_json(msg="Cannot set persistent booleans; please try as root")
|
|
if semanage.semanage_connect(handle) < 0:
|
|
module.fail_json(msg="Failed to connect to semanage")
|
|
|
|
if semanage.semanage_begin_transaction(handle) < 0:
|
|
module.fail_json(msg="Failed to begin semanage transaction")
|
|
|
|
rc, sebool = semanage.semanage_bool_create(handle)
|
|
if rc < 0:
|
|
module.fail_json(msg="Failed to create seboolean with semanage")
|
|
if semanage.semanage_bool_set_name(handle, sebool, name) < 0:
|
|
module.fail_json(msg="Failed to set seboolean name with semanage")
|
|
semanage.semanage_bool_set_value(sebool, value)
|
|
|
|
rc, boolkey = semanage.semanage_bool_key_extract(handle, sebool)
|
|
if rc < 0:
|
|
module.fail_json(msg="Failed to extract boolean key with semanage")
|
|
|
|
if semanage.semanage_bool_modify_local(handle, boolkey, sebool) < 0:
|
|
module.fail_json(msg="Failed to modify boolean key with semanage")
|
|
|
|
if semanage.semanage_bool_set_active(handle, boolkey, sebool) < 0:
|
|
module.fail_json(msg="Failed to set boolean key active with semanage")
|
|
|
|
semanage.semanage_bool_key_free(boolkey)
|
|
semanage.semanage_bool_free(sebool)
|
|
|
|
semanage.semanage_set_reload(handle, 0)
|
|
if semanage.semanage_commit(handle) < 0:
|
|
module.fail_json(msg="Failed to commit changes to semanage")
|
|
|
|
semanage.semanage_disconnect(handle)
|
|
semanage.semanage_handle_destroy(handle)
|
|
except Exception as e:
|
|
module.fail_json(msg="Failed to manage policy for boolean %s: %s" % (name, str(e)))
|
|
return True
|
|
|
|
|
|
def set_boolean_value(module, name, state):
|
|
rc = 0
|
|
value = 0
|
|
if state:
|
|
value = 1
|
|
try:
|
|
rc = selinux.security_set_boolean(name, value)
|
|
except OSError:
|
|
module.fail_json(msg="Failed to set boolean %s to %s" % (name, value))
|
|
if rc == 0:
|
|
return True
|
|
else:
|
|
return False
|
|
|
|
|
|
def main():
|
|
module = AnsibleModule(
|
|
argument_spec=dict(
|
|
name=dict(type='str', required=True),
|
|
persistent=dict(type='bool', default=False),
|
|
state=dict(type='bool', required=True),
|
|
),
|
|
supports_check_mode=True,
|
|
)
|
|
|
|
if not HAVE_SELINUX:
|
|
module.fail_json(msg="This module requires libselinux-python support")
|
|
|
|
if not HAVE_SEMANAGE:
|
|
module.fail_json(msg="This module requires libsemanage-python support")
|
|
|
|
if not selinux.is_selinux_enabled():
|
|
module.fail_json(msg="SELinux is disabled on this host.")
|
|
|
|
name = module.params['name']
|
|
persistent = module.params['persistent']
|
|
state = module.params['state']
|
|
|
|
result = dict(
|
|
name=name,
|
|
)
|
|
|
|
if hasattr(selinux, 'selinux_boolean_sub'):
|
|
# selinux_boolean_sub allows sites to rename a boolean and alias the old name
|
|
# Feature only available in selinux library since 2012.
|
|
name = selinux.selinux_boolean_sub(name)
|
|
|
|
if not has_boolean_value(module, name):
|
|
module.fail_json(msg="SELinux boolean %s does not exist." % name)
|
|
|
|
cur_value = get_boolean_value(module, name)
|
|
|
|
if cur_value == state:
|
|
module.exit_json(changed=False, state=cur_value, **result)
|
|
|
|
if module.check_mode:
|
|
module.exit_json(changed=True)
|
|
|
|
if persistent:
|
|
r = semanage_boolean_value(module, name, state)
|
|
else:
|
|
r = set_boolean_value(module, name, state)
|
|
|
|
result['changed'] = r
|
|
if not r:
|
|
module.fail_json(msg="Failed to set boolean %s to %s" % (name, state))
|
|
try:
|
|
selinux.security_commit_booleans()
|
|
except:
|
|
module.fail_json(msg="Failed to commit pending boolean %s value" % name)
|
|
|
|
module.exit_json(**result)
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|