[log] FWaaS L3 Logging driver based iptables
This patch implements logging driver in L3 for firewall group base discussed on the patch [1] [1] https://review.openstack.org/#/c/509725/ Co-Authored-By: Nguyen Phuong An <AnNP@vn.fujitsu.com> Co-Authored-By: Kim Bao Long <longkb@vn.fujitsu.com> Partial-Bug: #1720727 Change-Id: I1194a622c546068991f44559e3f9e343430fd6f9
This commit is contained in:
parent
15cabc798d
commit
507392be7d
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@ -61,7 +61,8 @@ todo_include_todos = True
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# sphinxcontrib.apidoc options
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apidoc_module_dir = '../../neutron_fwaas'
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apidoc_output_dir = 'contributor/api'
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# TODO(hoangcx): remove 'services/logapi/*' after next neutron release
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# TODO(hoangcx): remove 'services/logapi/*' and
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# 'services/firewall/fwaas_plugin_v2.py' after the next neutron release
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# (current release is Rocky-3)
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# NOTE(longkb): Due to libnetfilter_log library is not installed in sphinx-docs
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@ -70,6 +71,7 @@ apidoc_output_dir = 'contributor/api'
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apidoc_excluded_paths = [
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'db/migration/alembic_migrations/*',
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'privileged/netfilter_log/*',
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'services/firewall/fwaas_plugin_v2.py',
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'services/logapi/*',
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'setup.py',
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'tests/*',
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@ -24,6 +24,7 @@ from neutron_lib.callbacks import registry
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from neutron_lib.callbacks import resources
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from neutron_lib import constants as nl_constants
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from neutron_lib.exceptions import firewall_v2 as f_exc
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from neutron_lib.plugins import constants as plugin_const
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from neutron_lib.plugins import directory
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from oslo_log import helpers as log_helpers
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from oslo_log import log as logging
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@ -32,6 +33,8 @@ from neutron_fwaas.common import exceptions
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from neutron_fwaas.common import fwaas_constants
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from neutron_fwaas.extensions.firewall_v2 import Firewallv2PluginBase
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from neutron_fwaas.services.firewall.service_drivers import driver_api
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from neutron_fwaas.services.logapi.agents.drivers.iptables \
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import driver as logging_driver
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LOG = logging.getLogger(__name__)
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@ -70,6 +73,13 @@ class FirewallPluginV2(Firewallv2PluginBase):
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rpc_worker = service.RpcWorker([self], worker_process_count=0)
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self.add_worker(rpc_worker)
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log_plugin = directory.get_plugin(plugin_const.LOG_API)
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logging_driver.register()
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# If log_plugin was loaded before firewall plugin
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if log_plugin:
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# Register logging driver with LoggingServiceDriverManager again
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log_plugin.driver_manager.register_driver(logging_driver.DRIVER)
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def start_rpc_listeners(self):
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return self.driver.start_rpc_listener()
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@ -0,0 +1,67 @@
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# Copyright (c) 2018 Fujitsu Limited.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from neutron.services.logapi.common import constants as log_const
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from neutron.services.logapi.drivers import base
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from neutron.services.logapi.drivers import manager
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from neutron_lib.callbacks import resources
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from oslo_log import log as logging
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from oslo_utils import importutils
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from neutron_fwaas.common import fwaas_constants
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from neutron_fwaas.services.logapi.common import fwg_callback
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from neutron_fwaas.services.logapi import constants as fw_const
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from neutron_fwaas.services.logapi.rpc import log_server as rpc_server
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LOG = logging.getLogger(__name__)
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DRIVER = None
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SUPPORTED_LOGGING_TYPES = [fw_const.FIREWALL_GROUP]
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class IptablesLoggingDriver(base.DriverBase):
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@staticmethod
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def create():
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return IptablesLoggingDriver(
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name='iptables',
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vif_types=[],
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vnic_types=[],
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supported_logging_types=SUPPORTED_LOGGING_TYPES,
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requires_rpc=True)
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def register():
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"""Register iptables-based logging driver for FWaaS."""
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global DRIVER
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if not DRIVER:
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DRIVER = IptablesLoggingDriver.create()
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# Register RPC methods
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if DRIVER.requires_rpc:
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rpc_methods = [
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{resources.PORT: rpc_server.get_fwg_log_info_for_port},
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{log_const.LOG_RESOURCE: rpc_server.
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get_fwg_log_info_for_log_resources}
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]
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DRIVER.register_rpc_methods(fw_const.FIREWALL_GROUP, rpc_methods)
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# Trigger fwg validator
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importutils.import_module('neutron_fwaas.services.logapi.fwg_validate')
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# Register resource callback handler
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manager.register(
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fwaas_constants.FIREWALL_GROUP, fwg_callback.FirewallGroupCallBack)
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LOG.debug('FWaaS L3 Logging driver based iptables registered')
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@ -0,0 +1,490 @@
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# Copyright (c) 2018 Fujitsu Limited.
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# All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from collections import defaultdict
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import signal
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import uuid
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from neutron.agent.linux import utils
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from neutron.common import constants as n_const
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from neutron.services.logapi.agent import log_extension as log_ext
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from neutron.services.logapi.common import constants as log_const
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from neutron_lib import constants
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from oslo_config import cfg
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from oslo_log import handlers
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from oslo_log import log as logging
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from neutron_fwaas.privileged.netfilter_log import libnetfilter_log as libnflog
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LOG = logging.getLogger(__name__)
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UINT64_BITMASK = (1 << 64) - 1
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MAX_INTF_NAME_LEN = 14
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INTERNAL_DEV_PREFIX = 'qr-'
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SNAT_INT_DEV_PREFIX = 'sg-'
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ROUTER_2_FIP_DEV_PREFIX = 'rfp-'
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IPTABLES_DIRECTION_DEVICE = {
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constants.INGRESS_DIRECTION: 'i',
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constants.EGRESS_DIRECTION: 'o'
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}
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def setup_logging():
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log_file = cfg.CONF.network_log.local_output_log_base
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if log_file:
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import logging
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log_file_handler = logging.handlers.WatchedFileHandler(log_file)
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log_file_handler.setLevel(logging.INFO)
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log_file_handler.setFormatter(logging.Formatter(
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fmt="%(asctime)s %(message)s", datefmt=cfg.CONF.log_date_format))
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LOG.logger.addHandler(log_file_handler)
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elif cfg.CONF.use_journal:
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journal_handler = handlers.OSJournalHandler()
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LOG.logger.addHandler(journal_handler)
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else:
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syslog_handler = handlers.OSSysLogHandler()
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LOG.logger.addHandler(syslog_handler)
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class LogPrefix(object):
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"""LogPrefix could be used as prefix in NFLOG rules
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Each of a couple (port_id, event) has its own LogPrefix object
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"""
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def __init__(self, port_id, event, project_id):
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self.id = self._generate_prefix_id()
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self.port_id = port_id
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self.action = event
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# A list of log objects that referenced to this prefix
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self.log_object_refs = set()
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self.project_id = project_id
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def __eq__(self, other):
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return (self.id == other.id and
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self.action == other.action and
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self.port_id == other.port_id)
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def __hash__(self):
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return hash(self.id)
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def _generate_prefix_id(self):
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return uuid.uuid4().int & UINT64_BITMASK
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def add_log_obj_ref(self, log_id):
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self.log_object_refs.add(log_id)
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def remove_log_obj_ref(self, log_id):
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self.log_object_refs.discard(log_id)
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@property
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def is_empty(self):
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return not self.log_object_refs
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class FWGPortLog(object):
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"""A firewall group port log per log_object"""
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def __init__(self, port_id, log_info):
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self.port_id = port_id
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self.log_id = log_info['id']
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self.project_id = log_info['project_id']
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self.event = log_info['event']
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class IptablesLoggingDriver(log_ext.LoggingDriver):
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SUPPORTED_LOGGING_TYPES = ['firewall_group']
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def __init__(self, agent_api):
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self.agent_api = agent_api
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self.conf = cfg.CONF
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self.rate_limit = self.conf.network_log.rate_limit
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if self.rate_limit:
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self.burst_limit = self.conf.network_log.burst_limit
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self.ipt_mgr_list = defaultdict(dict)
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# A list of fwg port logs that are being logged
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self.fwg_port_logs = defaultdict(set)
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# A list of prefixes that are being used in iptables
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self.prefixes_table = {}
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self.cleanup_table = defaultdict(set)
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# Handle NFLOG processing
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self.nflog_proc_map = {}
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def initialize(self, resource_rpc, **kwargs):
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self.resource_rpc = resource_rpc
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setup_logging()
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self.log_app = libnflog.NFLogApp()
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self.log_app.register_packet_handler(self.log_packet)
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self.log_app.start()
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def log_packet(self, ev):
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prefix = ev['prefix']
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pkt = ev['msg']
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prefix_entry = self._get_prefix_by_id(prefix)
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if prefix_entry:
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logs_id = [str(id) for id in prefix_entry.log_object_refs]
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LOG.info("action=%s, project_id=%s, log_resource_ids=%s, port=%s, "
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"pkt=%s", prefix_entry.action,
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prefix_entry.project_id, logs_id,
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prefix_entry.port_id, pkt)
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else:
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LOG.warning("Unknown cookie packet_in pkt=%s", pkt)
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return 0
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def _get_prefix(self, port_id, action):
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if port_id in self.prefixes_table:
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for prefix in self.prefixes_table[port_id]:
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if prefix.action == action:
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return prefix
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return None
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def _get_prefix_by_id(self, prefix_id):
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for port, prefixes in self.prefixes_table.items():
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for prefix in prefixes:
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if str(prefix.id) == str(prefix_id):
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return prefix
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return None
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def _add_to_cleanup(self, port_id, prefix_id):
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if port_id not in self.cleanup_table:
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self.cleanup_table[port_id] = set()
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self.cleanup_table[port_id].add(prefix_id)
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def _add_to_prefixes_table(self, port_id, prefix):
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if port_id not in self.prefixes_table:
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self.prefixes_table[port_id] = []
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self.prefixes_table[port_id].append(prefix)
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def _cleanup_nflog_process(self, router_info):
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LOG.debug("Delete router_info %s", router_info)
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if router_info in self.nflog_proc_map:
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pid = self.nflog_proc_map[router_info]
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try:
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# A process started by a root helper will be running as
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# root and need to be killed via the same helper.
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LOG.debug('Trying to kill NFLOG process %d', pid)
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utils.kill_process(pid, signal.SIGKILL, run_as_root=True)
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del self.nflog_proc_map[router_info]
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except Exception:
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LOG.exception(
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'An error occurred while killing process %d', pid)
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def _cleanup_prefix_by_router(self, router_id):
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ipt_mgr_per_port = set()
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for port_id in self.ipt_mgr_list[router_id]:
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ipt_mgr = self.ipt_mgr_list[router_id][port_id]
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ipt_mgr_per_port.add(ipt_mgr)
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# Cleanup prefix
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if port_id in self.prefixes_table:
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for prefix in self.prefixes_table[port_id]:
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self._add_to_cleanup(port_id, prefix.id)
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del self.prefixes_table[port_id]
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return ipt_mgr_per_port
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def start_logging(self, context, **kwargs):
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LOG.debug("Start logging: %s", str(kwargs))
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for resource_type in self.SUPPORTED_LOGGING_TYPES:
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router_info = kwargs.get('router_info')
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if router_info:
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# Handle router updated or L3 agent restart
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router_id = router_info.router_id
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internal_ports = router_info.internal_ports
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self._create_firewall_group_log(context, resource_type,
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ports=internal_ports,
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router_id=router_id)
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# Start libnetfilter_log after router starting up
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pid = libnflog.run_nflog(router_info.ns_name)
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LOG.debug("NFLOG process ID %s for router %s has started",
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pid, router_info.router_id)
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self.nflog_proc_map[router_id] = pid
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else:
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# Handle the log request
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self._create_firewall_group_log(context, resource_type,
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**kwargs)
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def stop_logging(self, context, **kwargs):
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LOG.debug("Stop logging: %s", str(kwargs))
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# Delete router
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router_info = kwargs.get('router_info')
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if router_info:
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self._cleanup_nflog_process(router_info)
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if kwargs.get('log_resources'):
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# Handle incoming log request
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self._delete_firewall_group_log(context, **kwargs)
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def _create_firewall_group_log(self, context, resource_type, **kwargs):
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ports = kwargs.get('ports')
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log_resources = kwargs.get('log_resources')
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applied_ipt_mgrs = set()
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logs_info = []
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port_ids = []
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# Get log objects from database via RPC
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if ports:
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port_ids = [port['id'] for port in ports]
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logs_info = self.resource_rpc. \
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get_sg_log_info_for_port(context, resource_type,
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port_id=port_ids)
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elif log_resources:
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logs_info = self.resource_rpc.\
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get_sg_log_info_for_log_resources(context, resource_type,
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log_resources=log_resources)
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# Handle logs_info
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for log_info in logs_info:
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log_id = log_info['id']
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old_fwg_port_logs = self.fwg_port_logs.get(log_id, [])
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new_ports_log = log_info.get('ports_log')
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self.fwg_port_logs[log_id] = set()
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for port in new_ports_log:
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self._add_fwg_port_log(log_id, port, log_info)
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for port in old_fwg_port_logs:
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if port.port_id not in new_ports_log:
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# Remove port not bound by log_id
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self._cleanup_prefixes_table(port.port_id, log_id)
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for fwg_port_log in self.fwg_port_logs[log_id]:
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self._setup_chains(applied_ipt_mgrs, fwg_port_log)
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router_id = kwargs.get("router_id")
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if router_id:
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if not port_ids:
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ipt_mgrs = self._cleanup_prefix_by_router(router_id)
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applied_ipt_mgrs.update(ipt_mgrs)
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for port_id in port_ids:
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try:
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ipt_mgr = self.ipt_mgr_list[router_id][port_id]
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applied_ipt_mgrs.add(ipt_mgr)
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except KeyError:
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pass
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# Clean up NFLOG rules
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self._cleanup_nflog_rules(applied_ipt_mgrs)
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# Apply NFLOG rules into iptables managers
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for ipt_mgr in applied_ipt_mgrs:
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LOG.debug('Apply NFLOG rules in namespace %s', ipt_mgr.namespace)
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ipt_mgr.defer_apply_off()
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def _cleanup_prefixes_table(self, port_id, log_id):
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# Each a port has at most 2 prefix
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for index in [1, 0]:
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try:
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prefix = self.prefixes_table[port_id][index]
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prefix.remove_log_obj_ref(log_id)
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if prefix.is_empty:
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self._add_to_cleanup(port_id, prefix.id)
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self.prefixes_table[port_id].remove(prefix)
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except KeyError:
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pass
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if port_id in self.prefixes_table:
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del self.prefixes_table[port_id]
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def _cleanup_nflog_rules(self, applied_ipt_mgrs):
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for port_id, prefix_ids in self.cleanup_table.items():
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ipt_mgr = self._get_ipt_mgr_by_port(port_id)
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for prefix_id in prefix_ids:
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self._clear_rules_from_tag_v4v6(ipt_mgr, tag=prefix_id)
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applied_ipt_mgrs.add(ipt_mgr)
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self.cleanup_table.clear()
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def _delete_firewall_group_log(self, context, **kwargs):
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log_resources = kwargs.get('log_resources')
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applied_ipt_mgrs = set()
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for log_resource in log_resources:
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||||
log_id = log_resource.get('id')
|
||||
fwg_port_logs = self.fwg_port_logs[log_id]
|
||||
for port in fwg_port_logs:
|
||||
self._cleanup_prefixes_table(port.port_id, log_id)
|
||||
del self.fwg_port_logs[log_id]
|
||||
|
||||
# Clean NFLOG rules:
|
||||
self._cleanup_nflog_rules(applied_ipt_mgrs)
|
||||
# Apply NFLOG rules into iptables managers
|
||||
for ipt_mgr in applied_ipt_mgrs:
|
||||
ipt_mgr.defer_apply_off()
|
||||
|
||||
def _get_if_prefix(self, agent_mode, router):
|
||||
"""Get the if prefix from router"""
|
||||
if not router.router.get('distributed'):
|
||||
return INTERNAL_DEV_PREFIX
|
||||
|
||||
if agent_mode == 'dvr_snat':
|
||||
return SNAT_INT_DEV_PREFIX
|
||||
|
||||
if router.rtr_fip_connect:
|
||||
return ROUTER_2_FIP_DEV_PREFIX
|
||||
|
||||
def _get_intf_name(self, port_id):
|
||||
agent_mode = self.conf.agent_mode
|
||||
router = self.agent_api.get_router_hosting_port(port_id)
|
||||
if_prefix = self._get_if_prefix(agent_mode, router)
|
||||
return (if_prefix + port_id)[:n_const.LINUX_DEV_LEN]
|
||||
|
||||
def _get_ipt_mgr_by_port(self, port_id):
|
||||
|
||||
router = self.agent_api.get_router_hosting_port(port_id)
|
||||
if router:
|
||||
try:
|
||||
ipt_mgr = self.ipt_mgr_list[router.router_id][port_id]
|
||||
return ipt_mgr
|
||||
except KeyError:
|
||||
pass
|
||||
|
||||
ipt_mgr = router.iptables_manager
|
||||
self.ipt_mgr_list[router.router_id][port_id] = ipt_mgr
|
||||
return ipt_mgr
|
||||
|
||||
for router_id in self.ipt_mgr_list:
|
||||
if port_id in self.ipt_mgr_list[router_id]:
|
||||
return self.ipt_mgr_list[router_id][port_id]
|
||||
|
||||
def _setup_chains(self, applied_ipt_mgrs, fwg_port_log):
|
||||
# Add NFLOG rules by log event
|
||||
event = fwg_port_log.event
|
||||
if event in [log_const.ACCEPT_EVENT, log_const.ALL_EVENT]:
|
||||
self._add_nflog_rules_accepted(applied_ipt_mgrs, fwg_port_log)
|
||||
if event in [log_const.DROP_EVENT, log_const.ALL_EVENT]:
|
||||
self._add_log_rules_dropped(applied_ipt_mgrs, fwg_port_log)
|
||||
|
||||
def _add_nflog_rules_accepted(self, applied_ipt_mgrs, fwg_port_log):
|
||||
"""Add NFLOG rules to the accepted chain into iptables"""
|
||||
action = log_const.ACCEPT_EVENT
|
||||
port_id = fwg_port_log.port_id
|
||||
prefix = self._get_prefix(port_id, action)
|
||||
if not prefix:
|
||||
# Generate a new prefix from port and action
|
||||
project_id = fwg_port_log.project_id
|
||||
prefix = LogPrefix(port_id, action, project_id)
|
||||
self._add_to_prefixes_table(port_id, prefix)
|
||||
|
||||
# Get iptables manager from router port
|
||||
ipt_mgr = self._get_ipt_mgr_by_port(port_id)
|
||||
if ipt_mgr:
|
||||
applied_ipt_mgrs.add(ipt_mgr)
|
||||
|
||||
device = self._get_intf_name(port_id)
|
||||
|
||||
# Add the NFLOG rules to the dropped chain into iptables
|
||||
ipv4_rules, ipv6_rules = \
|
||||
self._generate_nflog_rules_v4v6(device, prefix=prefix.id)
|
||||
self._add_rules_to_chain_v4v6(ipt_mgr,
|
||||
'accepted', ipv4_rules, ipv6_rules,
|
||||
wrap=True, top=True, tag=prefix.id)
|
||||
|
||||
prefix.add_log_obj_ref(fwg_port_log.log_id)
|
||||
|
||||
def _add_log_rules_dropped(self, applied_ipt_mgrs, fwg_port_log):
|
||||
"""Add NFLOG rules to the dropped chain into iptables"""
|
||||
|
||||
action = log_const.DROP_EVENT
|
||||
port_id = fwg_port_log.port_id
|
||||
prefix = self._get_prefix(port_id, action)
|
||||
if not prefix:
|
||||
# Generate a new prefix from port and action
|
||||
project_id = fwg_port_log.project_id
|
||||
prefix = LogPrefix(port_id, action, project_id)
|
||||
self._add_to_prefixes_table(port_id, prefix)
|
||||
device = self._get_intf_name(port_id)
|
||||
|
||||
# Get iptables manager from router port
|
||||
ipt_mgr = self._get_ipt_mgr_by_port(port_id)
|
||||
if ipt_mgr:
|
||||
applied_ipt_mgrs.add(ipt_mgr)
|
||||
|
||||
# Add the NFLOG rules to the dropped chain into iptables
|
||||
ipv4_rules, ipv6_rules = \
|
||||
self._generate_nflog_rules_v4v6(device, prefix=prefix.id)
|
||||
self._add_rules_to_chain_v4v6(ipt_mgr,
|
||||
'dropped', ipv4_rules, ipv6_rules,
|
||||
wrap=True, top=True, tag=prefix.id)
|
||||
# Add the NFLOG rules to the rejected chain in iptables
|
||||
self._add_rules_to_chain_v4v6(ipt_mgr,
|
||||
'rejected', ipv4_rules, ipv6_rules,
|
||||
wrap=True, top=True, tag=prefix.id)
|
||||
prefix.add_log_obj_ref(fwg_port_log.log_id)
|
||||
|
||||
def _add_rules_to_chain_v4v6(self, ipt_mgr, chain_name, v4_rules, v6_rules,
|
||||
wrap=False, comment=None,
|
||||
top=False, tag=None):
|
||||
"""Add rules to filter table in iptables and ip6tables"""
|
||||
|
||||
for rule in v4_rules:
|
||||
ipt_mgr.ipv4['filter'].add_rule(chain_name, rule, wrap=wrap,
|
||||
comment=comment, top=top, tag=tag)
|
||||
for rule in v6_rules:
|
||||
ipt_mgr.ipv6['filter'].add_rule(chain_name, rule, wrap=wrap,
|
||||
comment=comment, top=top, tag=tag)
|
||||
|
||||
def _add_fwg_port_log(self, log_id, port_id, log_info):
|
||||
|
||||
self.fwg_port_logs[log_id].add(FWGPortLog(port_id, log_info))
|
||||
|
||||
# Add log ID into the corresponding LogPrefix object
|
||||
if log_info['event'] == log_const.ALL_EVENT:
|
||||
events = [log_const.ACCEPT_EVENT, log_const.DROP_EVENT]
|
||||
else:
|
||||
events = [log_info['event']]
|
||||
for event in events:
|
||||
prefix = self._get_prefix(port_id, event)
|
||||
if prefix:
|
||||
prefix.add_log_obj_ref(log_id)
|
||||
|
||||
def _generate_nflog_rules_v4v6(self, device, prefix):
|
||||
iptables_rules = []
|
||||
added_rules = set()
|
||||
for direction in constants.VALID_DIRECTIONS:
|
||||
args = self._generate_iptables_args(direction, device, prefix)
|
||||
rule = ' '.join(args)
|
||||
if rule in added_rules:
|
||||
# Since these rules are already added to iptables,
|
||||
# so we ignore them here
|
||||
continue
|
||||
added_rules.add(rule)
|
||||
iptables_rules.append(rule)
|
||||
LOG.debug("iptables-nflog-rules %r", iptables_rules)
|
||||
return iptables_rules, iptables_rules
|
||||
|
||||
def _generate_iptables_args(self, direction, device, prefix=None):
|
||||
|
||||
direction_config = ['-%s %s' %
|
||||
(IPTABLES_DIRECTION_DEVICE[direction], device)]
|
||||
match_rule = []
|
||||
if self.rate_limit:
|
||||
match_rule += ['-m', 'limit', '--limit', '%s/s' % self.rate_limit]
|
||||
if self.burst_limit:
|
||||
match_rule += ['--limit-burst %s' % self.burst_limit]
|
||||
target = ['-j', 'NFLOG']
|
||||
if prefix:
|
||||
target += ['--nflog-prefix', '%s' % prefix]
|
||||
|
||||
args = direction_config + match_rule + target
|
||||
return args
|
||||
|
||||
def _clear_rules_from_tag_v4v6(self, ipt_mgt, tag):
|
||||
"""Remove rules from filter table in iptables and ip6tables"""
|
||||
ipt_mgt.ipv4['filter'].clear_rules_by_tag(tag)
|
||||
ipt_mgt.ipv6['filter'].clear_rules_by_tag(tag)
|
|
@ -0,0 +1,53 @@
|
|||
# Copyright (c) 2018 Fujitsu Limited
|
||||
# All Rights Reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||||
# not use this file except in compliance with the License. You may obtain
|
||||
# a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
|
||||
from neutron.services.logapi.drivers import base as log_base_driver
|
||||
from neutron_fwaas.tests import base
|
||||
|
||||
SUPPORTED_LOGGING_TYPES = ['firewall_group']
|
||||
|
||||
|
||||
class FakeDriver(log_base_driver.DriverBase):
|
||||
|
||||
@staticmethod
|
||||
def create():
|
||||
return FakeDriver(
|
||||
name='fake_driver',
|
||||
vif_types=[],
|
||||
vnic_types=[],
|
||||
supported_logging_types=SUPPORTED_LOGGING_TYPES,
|
||||
requires_rpc=True
|
||||
)
|
||||
|
||||
|
||||
class TestDriverBase(base.BaseTestCase):
|
||||
|
||||
def setUp(self):
|
||||
super(TestDriverBase, self).setUp()
|
||||
self.driver = FakeDriver.create()
|
||||
|
||||
def test_is_vif_type_compatible(self):
|
||||
self.assertFalse(
|
||||
self.driver.is_vif_type_compatible([]))
|
||||
|
||||
def test_is_vnic_compatible(self):
|
||||
self.assertFalse(
|
||||
self.driver.is_vnic_compatible([]))
|
||||
|
||||
def test_is_logging_type_supported(self):
|
||||
self.assertTrue(
|
||||
self.driver.is_logging_type_supported('firewall_group'))
|
||||
self.assertFalse(
|
||||
self.driver.is_logging_type_supported('security_group'))
|
|
@ -0,0 +1,312 @@
|
|||
# Copyright (c) 2018 Fujitsu Limited.
|
||||
# All Rights Reserved.
|
||||
#
|
||||
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||||
# not use this file except in compliance with the License. You may obtain
|
||||
# a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
|
||||
from collections import defaultdict
|
||||
|
||||
import mock
|
||||
from neutron.services.logapi.common import constants as log_const
|
||||
from neutron.tests.unit.api.v2 import test_base
|
||||
|
||||
from neutron_fwaas.privileged.netfilter_log import libnetfilter_log as libnflog
|
||||
from neutron_fwaas.services.logapi.agents.drivers.iptables import log
|
||||
from neutron_fwaas.tests import base
|
||||
|
||||
FAKE_PROJECT_ID = 'fake_project_id'
|
||||
FAKE_PORT_ID = 'fake_port_id'
|
||||
FAKE_FWG_ID = 'fake_fwg_id'
|
||||
FAKE_LOG_ID = 'fake_log_id'
|
||||
FAKE_RESOUCE_TYPE = 'firewall_group'
|
||||
|
||||
FAKE_RATE = 100
|
||||
FAKE_BURST = 25
|
||||
|
||||
|
||||
class TestLogPrefix(base.BaseTestCase):
|
||||
|
||||
def setUp(self):
|
||||
super(TestLogPrefix, self).setUp()
|
||||
self.log_prefix = log.LogPrefix(FAKE_PORT_ID,
|
||||
'fake_event',
|
||||
FAKE_PROJECT_ID)
|
||||
self.log_prefix.log_object_refs = set([FAKE_LOG_ID])
|
||||
|
||||
def test_add_log_obj_ref(self):
|
||||
added_log_id = test_base._uuid
|
||||
expected_log_obj_ref = set([FAKE_LOG_ID, added_log_id])
|
||||
self.log_prefix.add_log_obj_ref(added_log_id)
|
||||
self.assertEqual(expected_log_obj_ref, self.log_prefix.log_object_refs)
|
||||
|
||||
def test_remove_log_obj_ref(self):
|
||||
expected_log_obj_ref = set()
|
||||
self.log_prefix.remove_log_obj_ref(FAKE_LOG_ID)
|
||||
self.assertEqual(expected_log_obj_ref, self.log_prefix.log_object_refs)
|
||||
|
||||
def test_is_empty(self):
|
||||
self.log_prefix.remove_log_obj_ref(FAKE_LOG_ID)
|
||||
result = self.log_prefix.is_empty
|
||||
self.assertEqual(True, result)
|
||||
|
||||
|
||||
class BaseIptablesLogTestCase(base.BaseTestCase):
|
||||
|
||||
def setUp(self):
|
||||
super(BaseIptablesLogTestCase, self).setUp()
|
||||
self.iptables_manager_patch = mock.patch(
|
||||
'neutron.agent.linux.iptables_manager.IptablesManager')
|
||||
self.iptables_manager_mock = self.iptables_manager_patch.start()
|
||||
resource_rpc_mock = mock.Mock()
|
||||
|
||||
self.iptables_mock = mock.Mock()
|
||||
self.v4filter_mock = mock.Mock()
|
||||
self.v6filter_mock = mock.Mock()
|
||||
self.iptables_mock.ipv4 = {'filter': self.v4filter_mock}
|
||||
self.iptables_mock.ipv6 = {'filter': self.v6filter_mock}
|
||||
|
||||
self.log_driver = log.IptablesLoggingDriver(mock.Mock())
|
||||
self.log_driver.iptables_manager = self.iptables_mock
|
||||
self.log_driver.resource_rpc = resource_rpc_mock
|
||||
self.context = mock.Mock()
|
||||
self.log_driver.agent_api = mock.Mock()
|
||||
|
||||
def test_start_logging(self):
|
||||
fake_router_info = mock.Mock()
|
||||
fake_router_info.router_id = 'fake_router_id'
|
||||
fake_router_info.ns_name = 'fake_namespace'
|
||||
libnflog.run_nflog = mock.Mock()
|
||||
self.log_driver._create_firewall_group_log = mock.Mock()
|
||||
|
||||
# Test with router_info that has internal ports
|
||||
fake_router_info.internal_ports = [
|
||||
{'id': 'fake_port1'},
|
||||
{'id': 'fake_port2'},
|
||||
]
|
||||
fake_kwargs = {
|
||||
'router_info': fake_router_info
|
||||
}
|
||||
self.log_driver.ports_belong_router = defaultdict(set)
|
||||
self.log_driver.start_logging(self.context, **fake_kwargs)
|
||||
self.log_driver._create_firewall_group_log.\
|
||||
assert_called_once_with(self.context,
|
||||
FAKE_RESOUCE_TYPE,
|
||||
ports=fake_router_info.internal_ports,
|
||||
router_id=fake_router_info.router_id)
|
||||
|
||||
# Test with log_resources
|
||||
fake_kwargs = {
|
||||
'log_resources': 'fake'
|
||||
}
|
||||
self.log_driver._create_firewall_group_log.reset_mock()
|
||||
self.log_driver.start_logging(self.context, **fake_kwargs)
|
||||
self.log_driver._create_firewall_group_log. \
|
||||
assert_called_once_with(self.context,
|
||||
FAKE_RESOUCE_TYPE,
|
||||
**fake_kwargs)
|
||||
|
||||
def test_stop_logging(self):
|
||||
fake_kwargs = {
|
||||
'log_resources': 'fake'
|
||||
}
|
||||
self.log_driver._delete_firewall_group_log = mock.Mock()
|
||||
self.log_driver.stop_logging(self.context, **fake_kwargs)
|
||||
self.log_driver._delete_firewall_group_log.\
|
||||
assert_called_once_with(self.context, **fake_kwargs)
|
||||
fake_kwargs = {
|
||||
'fake': 'fake'
|
||||
}
|
||||
self.log_driver._delete_firewall_group_log.reset_mock()
|
||||
self.log_driver.stop_logging(self.context, **fake_kwargs)
|
||||
self.log_driver._delete_firewall_group_log.assert_not_called()
|
||||
|
||||
def test_get_intf_name(self):
|
||||
fake_router = mock.Mock()
|
||||
fake_port_id = 'fake_router_port_id'
|
||||
|
||||
# Test with legacy router
|
||||
self.log_driver.conf.agent_mode = 'legacy'
|
||||
fake_router.router = {
|
||||
'fake': 'fake_mode'
|
||||
}
|
||||
with mock.patch.object(self.log_driver.agent_api,
|
||||
'get_router_hosting_port',
|
||||
return_value=fake_router):
|
||||
intf_name = self.log_driver._get_intf_name(fake_port_id)
|
||||
expected_name = 'qr-fake_router'
|
||||
self.assertEqual(expected_name, intf_name)
|
||||
|
||||
# Test with dvr router
|
||||
self.log_driver.conf.agent_mode = 'dvr_snat'
|
||||
fake_router.router = {
|
||||
'distributed': 'fake_mode'
|
||||
}
|
||||
with mock.patch.object(self.log_driver.agent_api,
|
||||
'get_router_hosting_port',
|
||||
return_value=fake_router):
|
||||
intf_name = self.log_driver._get_intf_name(fake_port_id)
|
||||
expected_name = 'sg-fake_router'
|
||||
self.assertEqual(expected_name, intf_name)
|
||||
|
||||
# Test with fip dev
|
||||
self.log_driver.conf.agent_mode = 'dvr_snat'
|
||||
fake_router.router = {
|
||||
'distributed': 'fake_mode'
|
||||
}
|
||||
fake_router.rtr_fip_connect = 'fake'
|
||||
self.log_driver.conf.agent_mode = 'fake'
|
||||
with mock.patch.object(self.log_driver.agent_api,
|
||||
'get_router_hosting_port',
|
||||
return_value=fake_router):
|
||||
intf_name = self.log_driver._get_intf_name(fake_port_id)
|
||||
expected_name = 'rfp-fake_route'
|
||||
self.assertEqual(expected_name, intf_name)
|
||||
|
||||
def test_setup_chains(self):
|
||||
self.log_driver._add_nflog_rules_accepted = mock.Mock()
|
||||
self.log_driver._add_log_rules_dropped = mock.Mock()
|
||||
m_ipt_mgr = mock.Mock()
|
||||
m_fwg_port_log = mock.Mock()
|
||||
|
||||
# Test with ALL event
|
||||
m_fwg_port_log.event = log_const.ALL_EVENT
|
||||
self.log_driver._setup_chains(m_ipt_mgr, m_fwg_port_log)
|
||||
|
||||
self.log_driver._add_nflog_rules_accepted.\
|
||||
assert_called_once_with(m_ipt_mgr, m_fwg_port_log)
|
||||
self.log_driver._add_log_rules_dropped.\
|
||||
assert_called_once_with(m_ipt_mgr, m_fwg_port_log)
|
||||
|
||||
# Test with ACCEPT event
|
||||
self.log_driver._add_nflog_rules_accepted.reset_mock()
|
||||
self.log_driver._add_log_rules_dropped.reset_mock()
|
||||
|
||||
m_fwg_port_log.event = log_const.ACCEPT_EVENT
|
||||
self.log_driver._setup_chains(m_ipt_mgr, m_fwg_port_log)
|
||||
|
||||
self.log_driver._add_nflog_rules_accepted.\
|
||||
assert_called_once_with(m_ipt_mgr, m_fwg_port_log)
|
||||
self.log_driver._add_log_rules_dropped.assert_not_called()
|
||||
|
||||
# Test with DROP event
|
||||
self.log_driver._add_nflog_rules_accepted.reset_mock()
|
||||
self.log_driver._add_log_rules_dropped.reset_mock()
|
||||
|
||||
m_fwg_port_log.event = log_const.DROP_EVENT
|
||||
self.log_driver._setup_chains(m_ipt_mgr, m_fwg_port_log)
|
||||
|
||||
self.log_driver._add_nflog_rules_accepted.assert_not_called()
|
||||
self.log_driver._add_log_rules_dropped.\
|
||||
assert_called_once_with(m_ipt_mgr, m_fwg_port_log)
|
||||
|
||||
def test_add_nflog_rules_accepted(self):
|
||||
ipt_mgr = mock.Mock()
|
||||
f_accept_prefix = log.LogPrefix(FAKE_PORT_ID, log_const.
|
||||
ACCEPT_EVENT,
|
||||
FAKE_PROJECT_ID)
|
||||
|
||||
f_port_log = self._fake_port_log('fake_log_id',
|
||||
log_const.ACCEPT_EVENT,
|
||||
FAKE_PORT_ID)
|
||||
|
||||
self.log_driver._add_rules_to_chain_v4v6 = mock.Mock()
|
||||
self.log_driver._get_ipt_mgr_by_port = mock.Mock(return_value=ipt_mgr)
|
||||
self.log_driver._get_intf_name = mock.Mock(return_value='fake_device')
|
||||
|
||||
with mock.patch.object(self.log_driver, '_get_prefix',
|
||||
side_effect=[f_accept_prefix, None]):
|
||||
|
||||
# Test with prefix already added into prefixes_table
|
||||
self.log_driver._add_nflog_rules_accepted(ipt_mgr, f_port_log)
|
||||
self.log_driver._add_rules_to_chain_v4v6.assert_not_called()
|
||||
self.assertEqual(set(['fake_log_id']),
|
||||
f_accept_prefix.log_object_refs)
|
||||
|
||||
# Test with prefixes_tables does not include the prefix
|
||||
prefix = log.LogPrefix(FAKE_PORT_ID, log_const.
|
||||
ACCEPT_EVENT, FAKE_PROJECT_ID)
|
||||
with mock.patch.object(log, 'LogPrefix', return_value=prefix):
|
||||
self.log_driver._add_nflog_rules_accepted(ipt_mgr, f_port_log)
|
||||
v4_rules, v6_rules = self._fake_nflog_rule_v4v6('fake_device',
|
||||
prefix.id)
|
||||
|
||||
self.log_driver._add_rules_to_chain_v4v6.\
|
||||
assert_called_once_with(ipt_mgr, 'accepted',
|
||||
v4_rules, v6_rules,
|
||||
wrap=True, top=True, tag=prefix.id)
|
||||
self.assertEqual(set(['fake_log_id']),
|
||||
prefix.log_object_refs)
|
||||
|
||||
def test_add_nflog_rules_dropped(self):
|
||||
ipt_mgr = mock.Mock()
|
||||
f_drop_prefix = log.LogPrefix(FAKE_PORT_ID, log_const.
|
||||
DROP_EVENT,
|
||||
FAKE_PROJECT_ID)
|
||||
|
||||
f_port_log = self._fake_port_log('fake_log_id',
|
||||
log_const.DROP_EVENT,
|
||||
FAKE_PORT_ID)
|
||||
|
||||
self.log_driver._add_rules_to_chain_v4v6 = mock.Mock()
|
||||
self.log_driver._get_ipt_mgr_by_port = mock.Mock(return_value=ipt_mgr)
|
||||
self.log_driver._get_intf_name = mock.Mock(return_value='fake_device')
|
||||
|
||||
with mock.patch.object(self.log_driver, '_get_prefix',
|
||||
side_effect=[f_drop_prefix, None]):
|
||||
|
||||
# Test with prefix already added into prefixes_table
|
||||
self.log_driver._add_log_rules_dropped(ipt_mgr, f_port_log)
|
||||
self.log_driver._add_rules_to_chain_v4v6.assert_not_called()
|
||||
self.assertEqual(set(['fake_log_id']),
|
||||
f_drop_prefix.log_object_refs)
|
||||
|
||||
# Test with prefixes_tables does not include the prefix
|
||||
prefix = log.LogPrefix(FAKE_PORT_ID, log_const.
|
||||
ACCEPT_EVENT, FAKE_PROJECT_ID)
|
||||
with mock.patch.object(log, 'LogPrefix', return_value=prefix):
|
||||
self.log_driver._add_log_rules_dropped(ipt_mgr, f_port_log)
|
||||
v4_rules, v6_rules = self._fake_nflog_rule_v4v6('fake_device',
|
||||
prefix.id)
|
||||
|
||||
calls = [
|
||||
mock.call(ipt_mgr, 'dropped', v4_rules, v6_rules,
|
||||
wrap=True, top=True, tag=prefix.id),
|
||||
mock.call(ipt_mgr, 'rejected', v4_rules, v6_rules,
|
||||
wrap=True, top=True, tag=prefix.id),
|
||||
]
|
||||
self.log_driver._add_rules_to_chain_v4v6.\
|
||||
assert_has_calls(calls)
|
||||
self.assertEqual(set(['fake_log_id']),
|
||||
prefix.log_object_refs)
|
||||
|
||||
def _fake_port_log(self, log_id, event, port_id):
|
||||
f_log_info = {
|
||||
'event': event,
|
||||
'project_id': FAKE_PROJECT_ID,
|
||||
'id': log_id
|
||||
}
|
||||
return log.FWGPortLog(port_id, f_log_info)
|
||||
|
||||
def _fake_nflog_rule_v4v6(self, device, tag):
|
||||
v4_nflog_rule = ['-i %s -m limit --limit %s/s --limit-burst %s '
|
||||
'-j NFLOG --nflog-prefix %s'
|
||||
% (device, FAKE_RATE, FAKE_BURST, tag)]
|
||||
v4_nflog_rule += ['-o %s -m limit --limit %s/s --limit-burst %s '
|
||||
'-j NFLOG --nflog-prefix %s'
|
||||
% (device, FAKE_RATE, FAKE_BURST, tag)]
|
||||
v6_nflog_rule = ['-i %s -m limit --limit %s/s --limit-burst %s '
|
||||
'-j NFLOG --nflog-prefix %s'
|
||||
% (device, FAKE_RATE, FAKE_BURST, tag)]
|
||||
v6_nflog_rule += ['-o %s -m limit --limit %s/s --limit-burst %s '
|
||||
'-j NFLOG --nflog-prefix %s'
|
||||
% (device, FAKE_RATE, FAKE_BURST, tag)]
|
||||
return v4_nflog_rule, v6_nflog_rule
|
|
@ -0,0 +1,38 @@
|
|||
# Licensed under the Apache License, Version 2.0 (the "License"); you may
|
||||
# not use this file except in compliance with the License. You may obtain
|
||||
# a copy of the License at
|
||||
#
|
||||
# http://www.apache.org/licenses/LICENSE-2.0
|
||||
#
|
||||
# Unless required by applicable law or agreed to in writing, software
|
||||
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
|
||||
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
|
||||
# License for the specific language governing permissions and limitations
|
||||
# under the License.
|
||||
|
||||
import mock
|
||||
|
||||
from neutron.api.rpc.callbacks.consumer import registry as cons_registry
|
||||
from neutron.api.rpc.callbacks.producer import registry as prod_registry
|
||||
from neutron.api.rpc.callbacks import resource_manager
|
||||
from neutron.tests.unit import testlib_api
|
||||
|
||||
|
||||
class BaseLogTestCase(testlib_api.SqlTestCase):
|
||||
def setUp(self):
|
||||
super(BaseLogTestCase, self).setUp()
|
||||
|
||||
with mock.patch.object(
|
||||
resource_manager.ResourceCallbacksManager, '_singleton',
|
||||
new_callable=mock.PropertyMock(return_value=False)):
|
||||
|
||||
self.cons_mgr = resource_manager.ConsumerResourceCallbacksManager()
|
||||
self.prod_mgr = resource_manager.ProducerResourceCallbacksManager()
|
||||
for mgr in (self.cons_mgr, self.prod_mgr):
|
||||
mgr.clear()
|
||||
|
||||
mock.patch.object(
|
||||
cons_registry, '_get_manager', return_value=self.cons_mgr).start()
|
||||
|
||||
mock.patch.object(
|
||||
prod_registry, '_get_manager', return_value=self.prod_mgr).start()
|
|
@ -61,6 +61,8 @@ neutron.agent.l3.extensions =
|
|||
neutron.agent.l3.firewall_drivers =
|
||||
conntrack = neutron_fwaas.services.firewall.service_drivers.agents.drivers.linux.legacy_conntrack:ConntrackLegacy
|
||||
netlink_conntrack = neutron_fwaas.services.firewall.service_drivers.agents.drivers.linux.netlink_conntrack:ConntrackNetlink
|
||||
neutron.services.logapi.drivers =
|
||||
fwaas_v2_log = neutron_fwaas.services.logapi.agents.drivers.iptables.log:IptablesLoggingDriver
|
||||
|
||||
[extract_messages]
|
||||
keywords = _ gettext ngettext l_ lazy_gettext
|
||||
|
|
Loading…
Reference in New Issue