223 lines
7.3 KiB
Python
223 lines
7.3 KiB
Python
#!/usr/bin/python
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#
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# Copyright: Ansible Project
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# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)
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from __future__ import absolute_import, division, print_function
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__metaclass__ = type
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ANSIBLE_METADATA = {'metadata_version': '1.1',
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'status': ['preview'],
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'supported_by': 'community'}
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DOCUMENTATION = """
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---
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module: asa_acl
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version_added: "2.2"
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author: "Patrick Ogenstad (@ogenstad)"
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short_description: Manage access-lists on a Cisco ASA
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description:
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- This module allows you to work with access-lists on a Cisco ASA device.
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extends_documentation_fragment: asa
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options:
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lines:
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description:
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- The ordered set of commands that should be configured in the
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section. The commands must be the exact same commands as found
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in the device running-config. Be sure to note the configuration
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command syntax as some commands are automatically modified by the
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device config parser.
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required: true
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aliases: [commands]
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before:
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description:
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- The ordered set of commands to push on to the command stack if
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a change needs to be made. This allows the playbook designer
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the opportunity to perform configuration commands prior to pushing
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any changes without affecting how the set of commands are matched
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against the system.
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after:
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description:
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- The ordered set of commands to append to the end of the command
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stack if a changed needs to be made. Just like with I(before) this
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allows the playbook designer to append a set of commands to be
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executed after the command set.
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match:
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description:
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- Instructs the module on the way to perform the matching of
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the set of commands against the current device config. If
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match is set to I(line), commands are matched line by line. If
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match is set to I(strict), command lines are matched with respect
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to position. Finally if match is set to I(exact), command lines
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must be an equal match.
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default: line
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choices: ['line', 'strict', 'exact']
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replace:
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description:
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- Instructs the module on the way to perform the configuration
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on the device. If the replace argument is set to I(line) then
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the modified lines are pushed to the device in configuration
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mode. If the replace argument is set to I(block) then the entire
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command block is pushed to the device in configuration mode if any
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line is not correct.
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default: line
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choices: ['line', 'block']
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force:
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description:
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- The force argument instructs the module to not consider the
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current devices running-config. When set to true, this will
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cause the module to push the contents of I(src) into the device
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without first checking if already configured.
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type: bool
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default: 'no'
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config:
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description:
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- The module, by default, will connect to the remote device and
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retrieve the current running-config to use as a base for comparing
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against the contents of source. There are times when it is not
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desirable to have the task get the current running-config for
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every task in a playbook. The I(config) argument allows the
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implementer to pass in the configuruation to use as the base
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config for comparison.
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"""
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EXAMPLES = """
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# Note: examples below use the following provider dict to handle
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# transport and authentication to the node.
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---
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vars:
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cli:
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host: "{{ inventory_hostname }}"
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username: cisco
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password: cisco
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transport: cli
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authorize: yes
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auth_pass: cisco
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---
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- asa_acl:
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lines:
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- access-list ACL-ANSIBLE extended permit tcp any any eq 82
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- access-list ACL-ANSIBLE extended permit tcp any any eq www
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- access-list ACL-ANSIBLE extended permit tcp any any eq 97
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- access-list ACL-ANSIBLE extended permit tcp any any eq 98
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- access-list ACL-ANSIBLE extended permit tcp any any eq 99
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before: clear configure access-list ACL-ANSIBLE
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match: strict
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replace: block
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provider: "{{ cli }}"
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- asa_acl:
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lines:
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- access-list ACL-OUTSIDE extended permit tcp any any eq www
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- access-list ACL-OUTSIDE extended permit tcp any any eq https
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context: customer_a
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provider: "{{ cli }}"
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"""
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RETURN = """
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updates:
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description: The set of commands that will be pushed to the remote device
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returned: always
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type: list
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sample: ['access-list ACL-OUTSIDE extended permit tcp any any eq www']
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"""
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from ansible.module_utils.basic import AnsibleModule
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from ansible.module_utils.network.asa.asa import asa_argument_spec, check_args
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from ansible.module_utils.network.asa.asa import get_config, load_config, run_commands
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from ansible.module_utils.network.common.config import NetworkConfig, dumps
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def get_acl_config(module, acl_name):
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contents = module.params['config']
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if not contents:
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contents = get_config(module)
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filtered_config = list()
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for item in contents.split('\n'):
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if item.startswith('access-list %s ' % acl_name):
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filtered_config.append(item)
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return NetworkConfig(indent=1, contents='\n'.join(filtered_config))
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def parse_acl_name(module):
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first_line = True
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for line in module.params['lines']:
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ace = line.split()
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if ace[0] != 'access-list':
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module.fail_json(msg='All lines/commands must begin with "access-list" %s is not permitted' % ace[0])
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if len(ace) <= 1:
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module.fail_json(msg='All lines/commands must contain the name of the access-list')
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if first_line:
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acl_name = ace[1]
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else:
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if acl_name != ace[1]:
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module.fail_json(msg='All lines/commands must use the same access-list %s is not %s' % (ace[1], acl_name))
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first_line = False
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return acl_name
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def main():
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argument_spec = dict(
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lines=dict(aliases=['commands'], required=True, type='list'),
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before=dict(type='list'),
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after=dict(type='list'),
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match=dict(default='line', choices=['line', 'strict', 'exact']),
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replace=dict(default='line', choices=['line', 'block']),
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force=dict(default=False, type='bool'),
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config=dict()
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)
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argument_spec.update(asa_argument_spec)
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module = AnsibleModule(argument_spec=argument_spec,
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supports_check_mode=True)
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lines = module.params['lines']
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result = {'changed': False}
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candidate = NetworkConfig(indent=1)
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candidate.add(lines)
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acl_name = parse_acl_name(module)
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if not module.params['force']:
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contents = get_acl_config(module, acl_name)
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config = NetworkConfig(indent=1, contents=contents)
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commands = candidate.difference(config)
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commands = dumps(commands, 'commands').split('\n')
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commands = [str(c) for c in commands if c]
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else:
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commands = str(candidate).split('\n')
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if commands:
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if module.params['before']:
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commands[:0] = module.params['before']
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if module.params['after']:
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commands.extend(module.params['after'])
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if not module.check_mode:
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load_config(module, commands)
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result['changed'] = True
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result['updates'] = commands
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module.exit_json(**result)
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if __name__ == '__main__':
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main()
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