569 lines
No EOL
17 KiB
Python
569 lines
No EOL
17 KiB
Python
#!/usr/bin/python
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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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#
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DOCUMENTATION = '''
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---
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module: nxos_ntp_auth
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version_added: "2.2"
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short_description: Manages NTP authentication.
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description:
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- Manages NTP authentication.
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extends_documentation_fragment: nxos
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author:
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- Jason Edelman (@jedelman8)
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notes:
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- If C(state=absent), the moudle will attempt to remove the given key configuration.
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If a matching key configuration isn't found on the device, the module will fail.
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- If C(state=absent) and C(authentication=on), authentication will be turned off.
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- If C(state=absent) and C(authentication=off), authentication will be turned on.
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options:
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key_id:
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description:
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- Authentication key identifier (numeric).
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required: true
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md5string:
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description:
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- MD5 String.
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required: true
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default: null
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auth_type:
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description:
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- Whether the given md5string is in cleartext or
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has been encrypted. If in cleartext, the device
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will encrypt it before storing it.
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required: false
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default: text
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choices: ['text', 'encrypt']
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trusted_key:
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description:
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- Whether the given key is required to be supplied by a time source
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for the device to synchronize to the time source.
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required: false
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default: false
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choices: ['true', 'false']
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authentication:
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description:
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- Turns NTP authenication on or off.
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required: false
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default: null
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choices: ['on', 'off']
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state:
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description:
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- Manage the state of the resource.
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required: false
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default: present
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choices: ['present','absent']
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'''
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EXAMPLES = '''
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# Basic NTP authentication configuration
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- nxos_ntp_auth:
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key_id=32
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md5string=hello
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auth_type=text
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host={{ inventory_hostname }}
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username={{ un }}
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password={{ pwd }}
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'''
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RETURN = '''
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proposed:
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description: k/v pairs of parameters passed into module
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returned: always
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type: dict
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sample: {"auth_type": "text", "authentication": "off",
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"key_id": "32", "md5string": "helloWorld",
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"trusted_key": "true"}
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existing:
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description:
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- k/v pairs of existing ntp authentication
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type: dict
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sample: {"authentication": "off", "trusted_key": "false"}
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end_state:
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description: k/v pairs of ntp autherntication after module execution
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returned: always
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type: dict
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sample: {"authentication": "off", "key_id": "32",
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"md5string": "kapqgWjwdg", "trusted_key": "true"}
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state:
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description: state as sent in from the playbook
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returned: always
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type: string
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sample: "present"
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updates:
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description: command sent to the device
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returned: always
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type: list
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sample: ["ntp authentication-key 32 md5 helloWorld 0", "ntp trusted-key 32"]
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changed:
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description: check to see if a change was made on the device
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returned: always
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type: boolean
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sample: true
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'''
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import json
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# COMMON CODE FOR MIGRATION
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import re
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from ansible.module_utils.basic import get_exception
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from ansible.module_utils.netcfg import NetworkConfig, ConfigLine
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from ansible.module_utils.shell import ShellError
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try:
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from ansible.module_utils.nxos import get_module
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except ImportError:
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from ansible.module_utils.nxos import NetworkModule
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def to_list(val):
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if isinstance(val, (list, tuple)):
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return list(val)
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elif val is not None:
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return [val]
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else:
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return list()
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class CustomNetworkConfig(NetworkConfig):
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def expand_section(self, configobj, S=None):
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if S is None:
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S = list()
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S.append(configobj)
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for child in configobj.children:
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if child in S:
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continue
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self.expand_section(child, S)
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return S
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def get_object(self, path):
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for item in self.items:
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if item.text == path[-1]:
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parents = [p.text for p in item.parents]
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if parents == path[:-1]:
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return item
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def to_block(self, section):
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return '\n'.join([item.raw for item in section])
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def get_section(self, path):
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try:
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section = self.get_section_objects(path)
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return self.to_block(section)
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except ValueError:
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return list()
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def get_section_objects(self, path):
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if not isinstance(path, list):
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path = [path]
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obj = self.get_object(path)
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if not obj:
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raise ValueError('path does not exist in config')
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return self.expand_section(obj)
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def add(self, lines, parents=None):
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"""Adds one or lines of configuration
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"""
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ancestors = list()
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offset = 0
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obj = None
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## global config command
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if not parents:
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for line in to_list(lines):
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item = ConfigLine(line)
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item.raw = line
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if item not in self.items:
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self.items.append(item)
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else:
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for index, p in enumerate(parents):
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try:
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i = index + 1
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obj = self.get_section_objects(parents[:i])[0]
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ancestors.append(obj)
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except ValueError:
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# add parent to config
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offset = index * self.indent
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obj = ConfigLine(p)
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obj.raw = p.rjust(len(p) + offset)
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if ancestors:
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obj.parents = list(ancestors)
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ancestors[-1].children.append(obj)
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self.items.append(obj)
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ancestors.append(obj)
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# add child objects
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for line in to_list(lines):
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# check if child already exists
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for child in ancestors[-1].children:
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if child.text == line:
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break
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else:
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offset = len(parents) * self.indent
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item = ConfigLine(line)
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item.raw = line.rjust(len(line) + offset)
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item.parents = ancestors
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ancestors[-1].children.append(item)
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self.items.append(item)
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def get_network_module(**kwargs):
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try:
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return get_module(**kwargs)
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except NameError:
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return NetworkModule(**kwargs)
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def get_config(module, include_defaults=False):
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config = module.params['config']
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if not config:
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try:
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config = module.get_config()
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except AttributeError:
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defaults = module.params['include_defaults']
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config = module.config.get_config(include_defaults=defaults)
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return CustomNetworkConfig(indent=2, contents=config)
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def load_config(module, candidate):
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config = get_config(module)
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commands = candidate.difference(config)
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commands = [str(c).strip() for c in commands]
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save_config = module.params['save']
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result = dict(changed=False)
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if commands:
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if not module.check_mode:
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try:
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module.configure(commands)
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except AttributeError:
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module.config(commands)
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if save_config:
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try:
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module.config.save_config()
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except AttributeError:
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module.execute(['copy running-config startup-config'])
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result['changed'] = True
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result['updates'] = commands
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return result
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# END OF COMMON CODE
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def execute_config_command(commands, module):
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try:
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module.configure(commands)
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except ShellError:
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clie = get_exception()
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module.fail_json(msg='Error sending CLI commands',
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error=str(clie), commands=commands)
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except AttributeError:
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try:
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commands.insert(0, 'configure')
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module.cli.add_commands(commands, output='config')
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module.cli.run_commands()
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except ShellError:
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clie = get_exception()
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module.fail_json(msg='Error sending CLI commands',
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error=str(clie), commands=commands)
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def get_cli_body_ssh(command, response, module):
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"""Get response for when transport=cli. This is kind of a hack and mainly
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needed because these modules were originally written for NX-API. And
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not every command supports "| json" when using cli/ssh. As such, we assume
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if | json returns an XML string, it is a valid command, but that the
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resource doesn't exist yet. Instead, the output will be a raw string
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when issuing commands containing 'show run'.
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"""
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if 'xml' in response[0]:
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body = []
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elif 'show run' in command:
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body = response
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else:
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try:
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if isinstance(response[0], str):
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body = [json.loads(response[0])]
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else:
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body = response
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except ValueError:
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module.fail_json(msg='Command does not support JSON output',
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command=command)
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return body
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def execute_show(cmds, module, command_type=None):
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command_type_map = {
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'cli_show': 'json',
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'cli_show_ascii': 'text'
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}
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try:
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if command_type:
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response = module.execute(cmds, command_type=command_type)
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else:
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response = module.execute(cmds)
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except ShellError:
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clie = get_exception()
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module.fail_json(msg='Error sending {0}'.format(cmds),
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error=str(clie))
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except AttributeError:
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try:
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if command_type:
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command_type = command_type_map.get(command_type)
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module.cli.add_commands(cmds, output=command_type)
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response = module.cli.run_commands()
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else:
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module.cli.add_commands(cmds)
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response = module.cli.run_commands()
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except ShellError:
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clie = get_exception()
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module.fail_json(msg='Error sending {0}'.format(cmds),
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error=str(clie))
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return response
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def execute_show_command(command, module, command_type='cli_show'):
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if module.params['transport'] == 'cli':
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if 'show run' not in command:
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command += ' | json'
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cmds = [command]
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response = execute_show(cmds, module)
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body = get_cli_body_ssh(command, response, module)
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elif module.params['transport'] == 'nxapi':
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cmds = [command]
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body = execute_show(cmds, module, command_type=command_type)
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return body
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def flatten_list(command_lists):
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flat_command_list = []
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for command in command_lists:
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if isinstance(command, list):
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flat_command_list.extend(command)
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else:
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flat_command_list.append(command)
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return flat_command_list
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def get_ntp_auth(module):
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command = 'show ntp authentication-status'
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body = execute_show_command(command, module)[0]
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ntp_auth_str = body['authentication']
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if 'enabled' in ntp_auth_str:
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ntp_auth = True
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else:
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ntp_auth = False
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return ntp_auth
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def get_ntp_trusted_key(module):
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trusted_key_list = []
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command = 'show run | inc ntp.trusted-key'
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trusted_key_str = execute_show_command(
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command, module, command_type='cli_show_ascii')[0]
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if trusted_key_str:
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trusted_keys = trusted_key_str.splitlines()
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else:
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trusted_keys = []
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for line in trusted_keys:
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if line:
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trusted_key_list.append(str(line.split()[2]))
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return trusted_key_list
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def get_ntp_auth_key(key_id, module):
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authentication_key = {}
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command = 'show run | inc ntp.authentication-key.{0}'.format(key_id)
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auth_regex = (".*ntp\sauthentication-key\s(?P<key_id>\d+)\s"
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"md5\s(?P<md5string>\S+).*")
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body = execute_show_command(command, module, command_type='cli_show_ascii')
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try:
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match_authentication = re.match(auth_regex, body[0], re.DOTALL)
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group_authentication = match_authentication.groupdict()
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key_id = group_authentication["key_id"]
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md5string = group_authentication['md5string']
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authentication_key['key_id'] = key_id
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authentication_key['md5string'] = md5string
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except (AttributeError, TypeError):
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authentication_key = {}
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return authentication_key
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def get_ntp_auth_info(key_id, module):
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auth_info = get_ntp_auth_key(key_id, module)
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trusted_key_list = get_ntp_trusted_key(module)
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auth_power = get_ntp_auth(module)
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|
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if key_id in trusted_key_list:
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auth_info['trusted_key'] = 'true'
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else:
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auth_info['trusted_key'] = 'false'
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if auth_power:
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auth_info['authentication'] = 'on'
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else:
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auth_info['authentication'] = 'off'
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return auth_info
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|
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def auth_type_to_num(auth_type):
|
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if auth_type == 'encrypt' :
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return '7'
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else:
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return '0'
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|
|
|
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def set_ntp_auth_key(key_id, md5string, auth_type, trusted_key, authentication):
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ntp_auth_cmds = []
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auth_type_num = auth_type_to_num(auth_type)
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ntp_auth_cmds.append(
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'ntp authentication-key {0} md5 {1} {2}'.format(
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key_id, md5string, auth_type_num))
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|
|
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if trusted_key == 'true':
|
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ntp_auth_cmds.append(
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'ntp trusted-key {0}'.format(key_id))
|
|
elif trusted_key == 'false':
|
|
ntp_auth_cmds.append(
|
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'no ntp trusted-key {0}'.format(key_id))
|
|
|
|
if authentication == 'on':
|
|
ntp_auth_cmds.append(
|
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'ntp authenticate')
|
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elif authentication == 'off':
|
|
ntp_auth_cmds.append(
|
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'no ntp authenticate')
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|
|
|
return ntp_auth_cmds
|
|
|
|
|
|
def remove_ntp_auth_key(key_id, md5string, auth_type, trusted_key, authentication):
|
|
auth_remove_cmds = []
|
|
auth_type_num = auth_type_to_num(auth_type)
|
|
auth_remove_cmds.append(
|
|
'no ntp authentication-key {0} md5 {1} {2}'.format(
|
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key_id, md5string, auth_type_num))
|
|
|
|
if authentication == 'on':
|
|
auth_remove_cmds.append(
|
|
'no ntp authenticate')
|
|
elif authentication == 'off':
|
|
auth_remove_cmds.append(
|
|
'ntp authenticate')
|
|
|
|
return auth_remove_cmds
|
|
|
|
|
|
def main():
|
|
argument_spec = dict(
|
|
key_id=dict(required=True, type='str'),
|
|
md5string=dict(required=True, type='str'),
|
|
auth_type=dict(choices=['text', 'encrypt'], default='text'),
|
|
trusted_key=dict(choices=['true', 'false'], default='false'),
|
|
authentication=dict(choices=['on', 'off']),
|
|
state=dict(choices=['absent', 'present'], default='present'),
|
|
)
|
|
module = get_network_module(argument_spec=argument_spec,
|
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supports_check_mode=True)
|
|
|
|
key_id = module.params['key_id']
|
|
md5string = module.params['md5string']
|
|
auth_type = module.params['auth_type']
|
|
trusted_key = module.params['trusted_key']
|
|
authentication = module.params['authentication']
|
|
state = module.params['state']
|
|
|
|
args = dict(key_id=key_id, md5string=md5string,
|
|
auth_type=auth_type, trusted_key=trusted_key,
|
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authentication=authentication)
|
|
|
|
changed = False
|
|
proposed = dict((k, v) for k, v in args.iteritems() if v is not None)
|
|
|
|
existing = get_ntp_auth_info(key_id, module)
|
|
end_state = existing
|
|
|
|
delta = dict(set(proposed.iteritems()).difference(existing.iteritems()))
|
|
|
|
commands = []
|
|
if state == 'present':
|
|
if delta:
|
|
command = set_ntp_auth_key(
|
|
key_id, md5string, auth_type, trusted_key, delta.get('authentication'))
|
|
if command:
|
|
commands.append(command)
|
|
elif state == 'absent':
|
|
if existing:
|
|
auth_toggle = None
|
|
if authentication == existing.get('authentication'):
|
|
auth_toggle = authentication
|
|
command = remove_ntp_auth_key(
|
|
key_id, md5string, auth_type, trusted_key, auth_toggle)
|
|
if command:
|
|
commands.append(command)
|
|
|
|
cmds = flatten_list(commands)
|
|
if cmds:
|
|
if module.check_mode:
|
|
module.exit_json(changed=True, commands=cmds)
|
|
else:
|
|
try:
|
|
execute_config_command(cmds, module)
|
|
except ShellError:
|
|
clie = get_exception()
|
|
module.fail_json(msg=str(clie) + ": " + cmds)
|
|
end_state = get_ntp_auth_info(key_id, module)
|
|
delta = dict(set(end_state.iteritems()).difference(existing.iteritems()))
|
|
if delta or (len(existing) != len(end_state)):
|
|
changed = True
|
|
|
|
results = {}
|
|
results['proposed'] = proposed
|
|
results['existing'] = existing
|
|
results['updates'] = cmds
|
|
results['changed'] = changed
|
|
results['end_state'] = end_state
|
|
|
|
module.exit_json(**results)
|
|
|
|
if __name__ == '__main__':
|
|
main() |