a36a1dba74
This patch adds a driver for FWaaS V2 support in the NSX-V plugin. It supports setting firewall rules per router interface port on the router edge firewall. In addition, the FWaaS TVD driver will now support NSX-V as well. The driver code is a combination of the NSX-V3 FWaas-V2 code, and the old NSX-V FWaaS-V1 code that is being deleted. Change-Id: Iacc7eaff0c70b68156516008cf0277c154edd76b
94 lines
3.7 KiB
Python
94 lines
3.7 KiB
Python
# Copyright 2017 VMware, Inc.
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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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import abc
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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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from neutron_lib.exceptions import firewall_v2 as exceptions
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try:
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from neutron_fwaas.services.firewall.service_drivers.agents.drivers \
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import fwaas_base
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except ImportError:
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# FWaaS project no found
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from vmware_nsx.services.fwaas.common import fwaas_mocks \
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as fwaas_base
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LOG = logging.getLogger(__name__)
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class EdgeFwaasDriverBaseV2(fwaas_base.FwaasDriverBase):
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"""NSX Base driver for Firewall As A Service - V2."""
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def __init__(self, driver_name):
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super(EdgeFwaasDriverBaseV2, self).__init__()
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self.driver_name = driver_name
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@log_helpers.log_method_call
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def create_firewall_group(self, agent_mode, apply_list, firewall_group):
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"""Create the Firewall with a given policy. """
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self._validate_firewall_group(firewall_group)
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self._update_backend_routers(apply_list, firewall_group['id'])
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@log_helpers.log_method_call
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def update_firewall_group(self, agent_mode, apply_list, firewall_group):
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"""Remove previous policy and apply the new policy."""
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self._validate_firewall_group(firewall_group)
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self._update_backend_routers(apply_list, firewall_group['id'])
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@log_helpers.log_method_call
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def delete_firewall_group(self, agent_mode, apply_list, firewall_group):
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"""Delete firewall.
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Removes rules created by this instance from the backend firewall
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And add the default allow rule.
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"""
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self._update_backend_routers(apply_list, firewall_group['id'])
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@log_helpers.log_method_call
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def apply_default_policy(self, agent_mode, apply_list, firewall_group):
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"""Apply the default policy (deny all).
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The backend firewall always has this policy (=deny all) as default,
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so we only need to delete the current rules.
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"""
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self._update_backend_routers(apply_list, firewall_group['id'])
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@abc.abstractmethod
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def _update_backend_routers(self, apply_list, fwg_id):
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"""Update all the affected router on the backend"""
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pass
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def _validate_firewall_group(self, firewall_group):
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"""Validate the rules in the firewall group"""
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for rule in firewall_group['egress_rule_list']:
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if rule.get('source_ip_address'):
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# this rule cannot be used as egress rule
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LOG.error("Rule %(id)s cannot be used in an egress "
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"policy because it has a source",
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{'id': rule['id']})
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raise exceptions.FirewallInternalDriverError(
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driver=self.driver_name)
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for rule in firewall_group['ingress_rule_list']:
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if rule.get('destination_ip_address'):
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# this rule cannot be used as ingress rule
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LOG.error("Rule %(id)s cannot be used in an ingress "
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"policy because it has a destination",
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{'id': rule['id']})
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raise exceptions.FirewallInternalDriverError(
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driver=self.driver_name)
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