From 30ada17d4ffd034e6380bb1958f47106054a197d Mon Sep 17 00:00:00 2001 From: Wojciech Wypior Date: Fri, 21 Jun 2019 20:58:03 +0100 Subject: [PATCH] Adds message routing transport module (#58201) --- .../bigip_message_routing_transport_config.py | 666 ++++++++++++++++++ .../load_generic_transport_config.json | 53 ++ ..._bigip_message_routing_transport_config.py | 185 +++++ 3 files changed, 904 insertions(+) create mode 100644 lib/ansible/modules/network/f5/bigip_message_routing_transport_config.py create mode 100644 test/units/modules/network/f5/fixtures/load_generic_transport_config.json create mode 100644 test/units/modules/network/f5/test_bigip_message_routing_transport_config.py diff --git a/lib/ansible/modules/network/f5/bigip_message_routing_transport_config.py b/lib/ansible/modules/network/f5/bigip_message_routing_transport_config.py new file mode 100644 index 00000000000..85e9d7bf1df --- /dev/null +++ b/lib/ansible/modules/network/f5/bigip_message_routing_transport_config.py @@ -0,0 +1,666 @@ +#!/usr/bin/python +# -*- coding: utf-8 -*- +# +# Copyright: (c) 2019, F5 Networks Inc. +# 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': ['preview'], + 'supported_by': 'certified'} + +DOCUMENTATION = r''' +--- +module: bigip_message_routing_transport_config +short_description: Manages configuration for an outgoing connection +description: + - Manages configuration for an outgoing connection in BIG-IP message routing. +version_added: 2.9 +options: + name: + description: + - Specifies the name of the transport config to manage. + type: str + required: True + description: + description: + - The user defined description of the transport config. + type: str + profiles: + description: + - Specifies a list profiles for the outgoing connection to use to direct and manage traffic. + type: list + src_addr_translation: + description: + - Specifies the type of source address translation enabled for the transport config and the pool + that the source address translation will use. + suboptions: + type: + description: + - Specifies the type of source address translation associated with the specified transport config. + - When set to C(snat) the C(pool) parameter needs to contain a name for a valid LSN or SNAT pool. + choices: + - snat + - none + - automap + pool: + description: + - Specifies the name of a LSN or SNAT pool used by the specified transport config. + - "Name can also be specified in C(fullPath) format: C(/Common/foobar)" + - When C(type) is C(none) or C(automap) the pool parameter will be replaced by C(none) keyword, + thus any defined C(pool) parameter will be ignored. + type: str + type: dict + src_port: + description: + - Specifies the source port to be used for the connection being created. + - If no value is specified an ephemeral port is chosen for the connection being created. + - The accepted range is between 0 and 65535 inclusive. + type: int + rules: + description: + - The iRules you want run on this transport config. iRules help automate the intercepting, processing, + and routing of application traffic. + type: list + type: + description: + - Parameter used to specify the type of the transport-config object to manage. + - Default setting is C(generic) with more options added in future. + type: str + choices: + - generic + default: generic + partition: + description: + - Device partition to create transport-config object on. + type: str + default: Common + state: + description: + - When C(present), ensures that the transport-config object exists. + - When C(absent), ensures the transport-config object is removed. + type: str + choices: + - present + - absent + default: present +notes: + - Requires BIG-IP >= 14.0.0 +extends_documentation_fragment: f5 +author: + - Wojciech Wypior (@wojtek0806) +''' + +EXAMPLES = r''' +- name: Create generic transport config + bigip_message_routing_transport_config: + name: foo + profiles: + transport: genericmsg + tcp: tcp-lan-optimized + description: new_transport + provider: + password: secret + server: lb.mydomain.com + user: admin + delegate_to: localhost + +- name: Modify generic transport config + bigip_message_routing_transport_config: + name: foo + rules: + - rule_1 + - rule_2 + provider: + password: secret + server: lb.mydomain.com + user: admin + delegate_to: localhost + +- name: Remove generic transport config + bigip_message_routing_transport_config: + name: foo + state: absent + provider: + password: secret + server: lb.mydomain.com + user: admin + delegate_to: localhost +''' + +RETURN = r''' +description: + description: The user defined description of the router profile. + returned: changed + type: str + sample: My description +rules: + description: The iRules running on transport config. + returned: changed + type: list + sample: ['/Common/rule1', '/Common/rule2'] +profiles: + description: The profiles for the outgoing connection . + returned: changed + type: list + sample: ['/Common/profile1', '/Common/profile2'] +src_addr_translation: + description: The type of source address translation enabled for the transport config. + type: complex + returned: changed + contains: + type: + description: the type of source address translation associated with the specified transport config. + type: str + returned: changed + sample: automap + pool: + description: The name of a LSN or SNAT pool used by the specified transport config. + type: str + returned: changed + sample: /Common/pool1 + sample: hash/dictionary of values +source_port: + description: The source port to be used for the connection being created. + returned: changed + type: int + sample: 10041 +''' + +from ansible.module_utils.basic import AnsibleModule +from ansible.module_utils.basic import env_fallback +from distutils.version import LooseVersion + +try: + from library.module_utils.network.f5.bigip import F5RestClient + from library.module_utils.network.f5.common import F5ModuleError + from library.module_utils.network.f5.common import AnsibleF5Parameters + from library.module_utils.network.f5.common import fq_name + from library.module_utils.network.f5.common import transform_name + from library.module_utils.network.f5.common import f5_argument_spec + from library.module_utils.network.f5.common import flatten_boolean + from library.module_utils.network.f5.compare import cmp_str_with_none + from library.module_utils.network.f5.compare import cmp_simple_list + from library.module_utils.network.f5.icontrol import tmos_version +except ImportError: + from ansible.module_utils.network.f5.bigip import F5RestClient + from ansible.module_utils.network.f5.common import F5ModuleError + from ansible.module_utils.network.f5.common import AnsibleF5Parameters + from ansible.module_utils.network.f5.common import fq_name + from ansible.module_utils.network.f5.common import transform_name + from ansible.module_utils.network.f5.common import f5_argument_spec + from ansible.module_utils.network.f5.common import flatten_boolean + from ansible.module_utils.network.f5.compare import cmp_str_with_none + from ansible.module_utils.network.f5.compare import cmp_simple_list + from ansible.module_utils.network.f5.icontrol import tmos_version + + +class Parameters(AnsibleF5Parameters): + api_map = { + 'sourceAddressTranslation': 'src_addr_translation', + 'sourcePort': 'src_port', + } + + api_attributes = [ + 'description', + 'sourceAddressTranslation', + 'sourcePort', + 'profiles', + 'rules', + ] + + returnables = [ + 'description', + 'snat_pool', + 'snat_type', + 'profiles', + 'rules', + 'src_port', + ] + + updatables = [ + 'description', + 'snat_pool', + 'snat_type', + 'profiles', + 'rules', + 'src_port', + ] + + +class ApiParameters(Parameters): + @property + def profiles(self): + if 'profilesReference' not in self._values: + return None + if 'items' not in self._values['profilesReference']: + return None + result = [item['fullPath'] for item in self._values['profilesReference']['items']] + return result + + @property + def snat_pool(self): + if self._values['src_addr_translation'] is None: + return None + if 'pool' in self._values['src_addr_translation']: + return self._values['src_addr_translation']['pool'] + + @property + def snat_type(self): + if self._values['src_addr_translation'] is None: + return None + return self._values['src_addr_translation']['type'] + + +class ModuleParameters(Parameters): + @property + def profiles(self): + if self._values['profiles'] is None: + return None + result = [fq_name(self.partition, p) for p in self._values['profiles']] + return result + + @property + def rules(self): + if self._values['rules'] is None: + return None + result = [fq_name(self.partition, rule) for rule in self._values['rules']] + return result + + @property + def snat_pool(self): + if self._values['src_addr_translation'] is None: + return None + if self._values['src_addr_translation']['pool']: + result = fq_name(self.partition, self._values['src_addr_translation']['pool']) + return result + + @property + def snat_type(self): + if self._values['src_addr_translation'] is None: + return None + return self._values['src_addr_translation']['type'] + + @property + def src_port(self): + if self._values['src_port'] is None: + return None + if 0 <= self._values['src_port'] <= 65535: + return self._values['src_port'] + raise F5ModuleError( + "Valid 'src_port' must be in range 0 - 65535 inclusive." + ) + + +class Changes(Parameters): + def to_return(self): + result = {} + try: + for returnable in self.returnables: + result[returnable] = getattr(self, returnable) + result = self._filter_params(result) + except Exception: + pass + return result + + +class UsableChanges(Changes): + @property + def src_addr_translation(self): + if self._values['snat_type'] is None: + return None + if self._values['snat_type'] in ['none', 'automap']: + result = dict( + pool='none', + type=self._values['snat_type'] + ) + return result + + result = dict( + pool=self._values['snat_pool'], + type=self._values['snat_type'] + ) + return result + + +class ReportableChanges(Changes): + returnables = [ + 'description', + 'src_addr_translation', + 'rules', + 'src_port', + 'profiles', + ] + + @property + def src_addr_translation(self): + if self._values['snat_type'] is None: + return None + to_filter = dict( + pool=self._values['snat_pool'], + type=self._values['snat_type'] + ) + result = self._filter_params(to_filter) + if result: + return result + + +class Difference(object): + def __init__(self, want, have=None): + self.want = want + self.have = have + + def compare(self, param): + try: + result = getattr(self, param) + return result + except AttributeError: + return self.__default(param) + + def __default(self, param): + attr1 = getattr(self.want, param) + try: + attr2 = getattr(self.have, param) + if attr1 != attr2: + return attr1 + except AttributeError: + return attr1 + + @property + def profiles(self): + result = cmp_simple_list(self.want.profiles, self.have.profiles) + return result + + @property + def rules(self): + result = cmp_simple_list(self.want.rules, self.have.rules) + return result + + @property + def description(self): + result = cmp_str_with_none(self.want.description, self.have.description) + return result + + +class BaseManager(object): + def __init__(self, *args, **kwargs): + self.module = kwargs.get('module', None) + self.client = F5RestClient(**self.module.params) + self.want = ModuleParameters(params=self.module.params) + self.have = ApiParameters() + self.changes = UsableChanges() + + def _set_changed_options(self): + changed = {} + for key in Parameters.returnables: + if getattr(self.want, key) is not None: + changed[key] = getattr(self.want, key) + if changed: + self.changes = UsableChanges(params=changed) + + def _update_changed_options(self): + diff = Difference(self.want, self.have) + updatables = Parameters.updatables + changed = dict() + for k in updatables: + change = diff.compare(k) + if change is None: + continue + else: + if isinstance(change, dict): + changed.update(change) + else: + changed[k] = change + if changed: + self.changes = UsableChanges(params=changed) + return True + return False + + def _announce_deprecations(self, result): + warnings = result.pop('__warnings', []) + for warning in warnings: + self.client.module.deprecate( + msg=warning['msg'], + version=warning['version'] + ) + + def exec_module(self): + changed = False + result = dict() + state = self.want.state + + if state == "present": + changed = self.present() + elif state == "absent": + changed = self.absent() + + reportable = ReportableChanges(params=self.changes.to_return()) + changes = reportable.to_return() + result.update(**changes) + result.update(dict(changed=changed)) + self._announce_deprecations(result) + return result + + def present(self): + if self.exists(): + return self.update() + else: + return self.create() + + def absent(self): + if self.exists(): + return self.remove() + return False + + def should_update(self): + result = self._update_changed_options() + if result: + return True + return False + + def update(self): + self.have = self.read_current_from_device() + if not self.should_update(): + return False + if self.module.check_mode: + return True + self.update_on_device() + return True + + def remove(self): + if self.module.check_mode: + return True + self.remove_from_device() + if self.exists(): + raise F5ModuleError("Failed to delete the resource.") + return True + + def create(self): + if self.want.profiles is None: + raise F5ModuleError( + 'Profiles parameter needs to be specified when creating transport config.' + ) + self._set_changed_options() + if self.module.check_mode: + return True + self.create_on_device() + return True + + +class GenericModuleManager(BaseManager): + def exists(self): + uri = "https://{0}:{1}/mgmt/tm/ltm/message-routing/generic/transport-config/{2}".format( + self.client.provider['server'], + self.client.provider['server_port'], + transform_name(self.want.partition, self.want.name) + ) + resp = self.client.api.get(uri) + try: + response = resp.json() + except ValueError: + return False + if resp.status == 404 or 'code' in response and response['code'] == 404: + return False + return True + + def create_on_device(self): + params = self.changes.api_params() + params['name'] = self.want.name + params['partition'] = self.want.partition + uri = "https://{0}:{1}/mgmt/tm/ltm/message-routing/generic/transport-config/".format( + self.client.provider['server'], + self.client.provider['server_port'], + ) + resp = self.client.api.post(uri, json=params) + try: + response = resp.json() + except ValueError as ex: + raise F5ModuleError(str(ex)) + + if 'code' in response and response['code'] in [400, 409]: + if 'message' in response: + raise F5ModuleError(response['message']) + else: + raise F5ModuleError(resp.content) + return True + + def update_on_device(self): + params = self.changes.api_params() + uri = "https://{0}:{1}/mgmt/tm/ltm/message-routing/generic/transport-config/{2}".format( + self.client.provider['server'], + self.client.provider['server_port'], + transform_name(self.want.partition, self.want.name) + ) + resp = self.client.api.patch(uri, json=params) + try: + response = resp.json() + except ValueError as ex: + raise F5ModuleError(str(ex)) + + if 'code' in response and response['code'] == 400: + if 'message' in response: + raise F5ModuleError(response['message']) + else: + raise F5ModuleError(resp.content) + + def remove_from_device(self): + uri = "https://{0}:{1}/mgmt/tm/ltm/message-routing/generic/transport-config/{2}".format( + self.client.provider['server'], + self.client.provider['server_port'], + transform_name(self.want.partition, self.want.name) + ) + response = self.client.api.delete(uri) + if response.status == 200: + return True + raise F5ModuleError(response.content) + + def read_current_from_device(self): + uri = "https://{0}:{1}/mgmt/tm/ltm/message-routing/generic/transport-config/{2}".format( + self.client.provider['server'], + self.client.provider['server_port'], + transform_name(self.want.partition, self.want.name) + ) + query = '?expandSubcollections=true' + resp = self.client.api.get(uri + query) + try: + response = resp.json() + except ValueError as ex: + raise F5ModuleError(str(ex)) + + if 'code' in response and response['code'] == 400: + if 'message' in response: + raise F5ModuleError(response['message']) + else: + raise F5ModuleError(resp.content) + return ApiParameters(params=response) + + +class ModuleManager(object): + def __init__(self, *args, **kwargs): + self.module = kwargs.get('module', None) + self.client = F5RestClient(**self.module.params) + self.kwargs = kwargs + + def version_less_than_14(self): + version = tmos_version(self.client) + if LooseVersion(version) < LooseVersion('14.0.0'): + return True + return False + + def exec_module(self): + if self.version_less_than_14(): + raise F5ModuleError('Message routing is not supported on TMOS version below 14.x') + if self.module.params['type'] == 'generic': + manager = self.get_manager('generic') + else: + raise F5ModuleError( + "Unknown type specified." + ) + return manager.exec_module() + + def get_manager(self, type): + if type == 'generic': + return GenericModuleManager(**self.kwargs) + + +class ArgumentSpec(object): + def __init__(self): + self.supports_check_mode = True + argument_spec = dict( + name=dict(required=True), + description=dict(), + profiles=dict(type='list'), + src_port=dict(type='int'), + src_addr_translation=dict( + type='dict', + options=dict( + type=dict( + choices=['none', 'automap', 'snat'] + ), + pool=dict(), + ), + required_if=[ + ['type', 'snat', ['pool']] + ] + ), + rules=dict(type='list'), + type=dict( + choices=['generic'], + default='generic' + ), + partition=dict( + default='Common', + fallback=(env_fallback, ['F5_PARTITION']) + ), + state=dict( + default='present', + choices=['present', 'absent'] + ) + + ) + self.argument_spec = {} + self.argument_spec.update(f5_argument_spec) + self.argument_spec.update(argument_spec) + + +def main(): + spec = ArgumentSpec() + + module = AnsibleModule( + argument_spec=spec.argument_spec, + supports_check_mode=spec.supports_check_mode, + ) + + try: + mm = ModuleManager(module=module) + results = mm.exec_module() + module.exit_json(**results) + except F5ModuleError as ex: + module.fail_json(msg=str(ex)) + + +if __name__ == '__main__': + main() diff --git a/test/units/modules/network/f5/fixtures/load_generic_transport_config.json b/test/units/modules/network/f5/fixtures/load_generic_transport_config.json new file mode 100644 index 00000000000..15121910cc4 --- /dev/null +++ b/test/units/modules/network/f5/fixtures/load_generic_transport_config.json @@ -0,0 +1,53 @@ +{ + "kind": "tm:ltm:message-routing:generic:transport-config:transport-configstate", + "name": "gen1", + "partition": "Common", + "fullPath": "/Common/gen1", + "generation": 643, + "selfLink": "https://localhost/mgmt/tm/ltm/message-routing/generic/transport-config/~Common~gen1?expandSubcollections=true&ver=14.1.0.3", + "ipProtocol": "tcp", + "sourceAddressTranslation": { + "pool": "/Common/test_snat", + "poolReference": { + "link": "https://localhost/mgmt/tm/ltm/snatpool/~Common~test_snat?ver=14.1.0.3" + }, + "type": "snat" + }, + "sourcePort": 0, + "rules": [ + "/Common/test" + ], + "rulesReference": [ + { + "link": "https://localhost/mgmt/tm/ltm/rule/~Common~test?ver=14.1.0.3" + } + ], + "profilesReference": { + "link": "https://localhost/mgmt/tm/ltm/message-routing/generic/transport-config/~Common~gen1/profiles?ver=14.1.0.3", + "isSubcollection": true, + "items": [ + { + "kind": "tm:ltm:message-routing:generic:transport-config:profiles:profilesstate", + "name": "diametersession", + "partition": "Common", + "fullPath": "/Common/diametersession", + "generation": 626, + "selfLink": "https://localhost/mgmt/tm/ltm/message-routing/generic/transport-config/~Common~gen1/profiles/~Common~diametersession?ver=14.1.0.3", + "nameReference": { + "link": "https://localhost/mgmt/tm/ltm/message-routing/diameter/profile/session/~Common~diametersession?ver=14.1.0.3" + } + }, + { + "kind": "tm:ltm:message-routing:generic:transport-config:profiles:profilesstate", + "name": "tcp", + "partition": "Common", + "fullPath": "/Common/tcp", + "generation": 626, + "selfLink": "https://localhost/mgmt/tm/ltm/message-routing/generic/transport-config/~Common~gen1/profiles/~Common~tcp?ver=14.1.0.3", + "nameReference": { + "link": "https://localhost/mgmt/tm/ltm/profile/tcp/~Common~tcp?ver=14.1.0.3" + } + } + ] + } +} diff --git a/test/units/modules/network/f5/test_bigip_message_routing_transport_config.py b/test/units/modules/network/f5/test_bigip_message_routing_transport_config.py new file mode 100644 index 00000000000..eeaff8ca496 --- /dev/null +++ b/test/units/modules/network/f5/test_bigip_message_routing_transport_config.py @@ -0,0 +1,185 @@ +# -*- coding: utf-8 -*- +# +# Copyright: (c) 2019, F5 Networks Inc. +# 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 + +import os +import json +import pytest +import sys + +if sys.version_info < (2, 7): + pytestmark = pytest.mark.skip("F5 Ansible modules require Python >= 2.7") + +from ansible.module_utils.basic import AnsibleModule + +try: + from library.modules.bigip_message_routing_transport_config import ApiParameters + from library.modules.bigip_message_routing_transport_config import ModuleParameters + from library.modules.bigip_message_routing_transport_config import ModuleManager + from library.modules.bigip_message_routing_transport_config import GenericModuleManager + from library.modules.bigip_message_routing_transport_config import ArgumentSpec + + # In Ansible 2.8, Ansible changed import paths. + from test.units.compat import unittest + from test.units.compat.mock import Mock + from test.units.compat.mock import patch + + from test.units.modules.utils import set_module_args +except ImportError: + from ansible.modules.network.f5.bigip_message_routing_transport_config import ApiParameters + from ansible.modules.network.f5.bigip_message_routing_transport_config import ModuleParameters + from ansible.modules.network.f5.bigip_message_routing_transport_config import ModuleManager + from ansible.modules.network.f5.bigip_message_routing_transport_config import GenericModuleManager + from ansible.modules.network.f5.bigip_message_routing_transport_config import ArgumentSpec + + # Ansible 2.8 imports + from units.compat import unittest + from units.compat.mock import Mock + from units.compat.mock import patch + + from units.modules.utils import set_module_args + + +fixture_path = os.path.join(os.path.dirname(__file__), 'fixtures') +fixture_data = {} + + +def load_fixture(name): + path = os.path.join(fixture_path, name) + + if path in fixture_data: + return fixture_data[path] + + with open(path) as f: + data = f.read() + + try: + data = json.loads(data) + except Exception: + pass + + fixture_data[path] = data + return data + + +class TestParameters(unittest.TestCase): + def test_module_parameters(self): + args = dict( + name='foo', + partition='foobar', + description='my description', + profiles=['genericmsg', 'foo_udp'], + src_addr_translation=dict( + type='snat', + pool='some_pool1' + ), + src_port=1023, + rules=['rule1', 'rule2'], + ) + p = ModuleParameters(params=args) + assert p.name == 'foo' + assert p.partition == 'foobar' + assert p.description == 'my description' + assert p.profiles == ['/foobar/genericmsg', '/foobar/foo_udp'] + assert p.snat_type == 'snat' + assert p.snat_pool == '/foobar/some_pool1' + assert p.src_port == 1023 + assert p.rules == ['/foobar/rule1', '/foobar/rule2'] + + def test_api_parameters(self): + args = load_fixture('load_generic_transport_config.json') + + p = ApiParameters(params=args) + assert p.name == 'gen1' + assert p.partition == 'Common' + assert p.profiles == ['/Common/diametersession', '/Common/tcp'] + assert p.snat_type == 'snat' + assert p.src_port == 0 + assert p.snat_pool == '/Common/test_snat' + assert p.rules == ['/Common/test'] + + +class TestManager(unittest.TestCase): + def setUp(self): + self.spec = ArgumentSpec() + + def test_create_generic_transport(self, *args): + set_module_args(dict( + name='foo', + partition='foobar', + description='my description', + profiles=['genericmsg', 'foo_udp'], + src_addr_translation=dict( + type='snat', + pool='some_pool1' + ), + src_port=1023, + rules=['rule1', 'rule2'], + provider=dict( + server='localhost', + password='password', + user='admin' + ) + )) + + module = AnsibleModule( + argument_spec=self.spec.argument_spec, + supports_check_mode=self.spec.supports_check_mode + ) + + # Override methods in the specific type of manager + gm = GenericModuleManager(module=module) + gm.exists = Mock(return_value=False) + gm.create_on_device = Mock(return_value=True) + + mm = ModuleManager(module=module) + mm.version_less_than_14 = Mock(return_value=False) + mm.get_manager = Mock(return_value=gm) + + results = mm.exec_module() + + assert results['changed'] is True + assert results['description'] == 'my description' + assert results['src_addr_translation'] == dict(type='snat', pool='/foobar/some_pool1') + assert results['src_port'] == 1023 + assert results['rules'] == ['/foobar/rule1', '/foobar/rule2'] + assert results['profiles'] == ['/foobar/genericmsg', '/foobar/foo_udp'] + + def test_update_generic_transport(self, *args): + set_module_args(dict( + name='gen1', + src_port=1024, + rules=['/Common/barfoo'], + provider=dict( + server='localhost', + password='password', + user='admin' + ) + )) + + current = ApiParameters(params=load_fixture('load_generic_transport_config.json')) + + module = AnsibleModule( + argument_spec=self.spec.argument_spec, + supports_check_mode=self.spec.supports_check_mode, + ) + + # Override methods in the specific type of manager + gm = GenericModuleManager(module=module) + gm.exists = Mock(return_value=True) + gm.update_on_device = Mock(return_value=True) + gm.read_current_from_device = Mock(return_value=current) + + mm = ModuleManager(module=module) + mm.version_less_than_14 = Mock(return_value=False) + mm.get_manager = Mock(return_value=gm) + + results = mm.exec_module() + + assert results['changed'] is True + assert results['src_port'] == 1024 + assert results['rules'] == ['/Common/barfoo']