103 lines
3.9 KiB
Python
103 lines
3.9 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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from oslo_log import log as logging
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from vmware_nsx.extensions import projectpluginmap
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from vmware_nsx.services.fwaas.common import fwaas_callbacks_v1 as com_clbcks
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from vmware_nsx.services.fwaas.nsx_tv import edge_fwaas_driver_v1 as tv_driver
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LOG = logging.getLogger(__name__)
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class Nsxv3FwaasCallbacksV1(com_clbcks.NsxFwaasCallbacks):
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"""NSX-V3 RPC callbacks for Firewall As A Service - V1."""
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def __init__(self):
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super(Nsxv3FwaasCallbacksV1, self).__init__()
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# update the fwaas driver in case of TV plugin
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if self.fwaas_enabled:
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if self.fwaas_driver.driver_name == tv_driver.FWAAS_DRIVER_NAME:
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self.internal_driver = self.fwaas_driver.get_T_driver()
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else:
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self.internal_driver = self.fwaas_driver
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@property
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def plugin_type(self):
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return projectpluginmap.NsxPlugins.NSX_T
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def should_apply_firewall_to_router(self, context, router_id):
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"""Return True if the FWaaS rules should be added to this router."""
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if not super(Nsxv3FwaasCallbacksV1,
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self).should_apply_firewall_to_router(context,
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router_id):
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return False
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# get all the relevant router info
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ctx_elevated = context.elevated()
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router_data = self.core_plugin.get_router(ctx_elevated, router_id)
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if not router_data:
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LOG.error("Couldn't read router %s data", router_id)
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return False
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# Check if the FWaaS driver supports this router
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if not self.internal_driver.should_apply_firewall_to_router(
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router_data):
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return False
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return True
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def update_router_firewall(self, context, nsxlib, router_id,
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router_interfaces, nsx_router_id, section_id,
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from_fw=False):
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"""Rewrite all the FWaaS v1 rules in the router edge firewall
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This method should be called on FWaaS updates, and on router
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interfaces changes.
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"""
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fw_rules = []
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fw_id = None
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if self.should_apply_firewall_to_router(context, router_id):
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# Find the firewall attached to this router
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# (must have one since should_apply returned true)
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firewall = self.get_router_firewall(context, router_id)
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fw_id = firewall['id']
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# Add the FW rules
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fw_rules.extend(self.internal_driver.get_router_translated_rules(
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router_id, firewall))
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# Add plugin additional allow rules
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fw_rules.extend(self.core_plugin.get_extra_fw_rules(
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context, router_id))
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# Add the default drop all rule
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fw_rules.append(self.internal_driver.get_default_backend_rule(
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section_id, allow_all=False))
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else:
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# default allow all rule
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fw_rules.append(self.internal_driver.get_default_backend_rule(
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section_id, allow_all=True))
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# update the backend
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nsxlib.firewall_section.update(section_id, rules=fw_rules)
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# Also update the router tags
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self.internal_driver.update_nsx_router_tags(nsx_router_id, fw_id=fw_id)
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def delete_port(self, context, port_id):
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# nothing to do in FWaaS v1
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pass
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