# vim: tabstop=4 shiftwidth=4 softtabstop=4 # # Copyright 2012 NEC Corporation. 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. # @author: Ryota MIBU from quantum.plugins.nec import drivers from quantum.plugins.nec.common import config from quantum.plugins.nec.common import exceptions as nexc from quantum.plugins.nec.db import api as ndb from quantum.plugins.nec.db import models as nmodels class OFCManager(object): """This class manages an OpenFlow Controller and map resources. This class manage an OpenFlow Controller (OFC) with a driver specified in a configuration of this plugin. This keeps mappings between IDs on Quantum and OFC for various entities such as Tenant, Network and Filter. A Port on OFC is identified by a switch ID 'datapath_id' and a port number 'port_no' of the switch. An ID named as 'ofc_*' is used to identify resource on OFC. """ resource_map = {'ofc_tenant': nmodels.OFCTenant, 'ofc_network': nmodels.OFCNetwork, 'ofc_port': nmodels.OFCPort, 'ofc_packet_filter': nmodels.OFCFilter} def __init__(self): self.driver = drivers.get_driver(config.OFC.driver)(config.OFC) def _get_ofc_id(self, resource, quantum_id): model = self.resource_map[resource] ofc_item = ndb.find_ofc_item(model, quantum_id) if not ofc_item: reason = "NotFound %s for quantum_id=%s." % (resource, quantum_id) raise nexc.OFCConsistencyBroken(reason=reason) return ofc_item.id def _exists_ofc_item(self, resource, quantum_id): model = self.resource_map[resource] if ndb.find_ofc_item(model, quantum_id): return True else: return False # Tenant def create_ofc_tenant(self, tenant_id): desc = "ID=%s at OpenStack." % tenant_id ofc_tenant_id = self.driver.create_tenant(desc, tenant_id) ndb.add_ofc_item(nmodels.OFCTenant, ofc_tenant_id, tenant_id) def exists_ofc_tenant(self, tenant_id): return self._exists_ofc_item("ofc_tenant", tenant_id) def delete_ofc_tenant(self, tenant_id): ofc_tenant_id = self._get_ofc_id("ofc_tenant", tenant_id) self.driver.delete_tenant(ofc_tenant_id) ndb.del_ofc_item(nmodels.OFCTenant, ofc_tenant_id) # Network def create_ofc_network(self, tenant_id, network_id, network_name=None): ofc_tenant_id = self._get_ofc_id("ofc_tenant", tenant_id) desc = "ID=%s Name=%s at Quantum." % (network_id, network_name) ofc_net_id = self.driver.create_network(ofc_tenant_id, desc, network_id) ndb.add_ofc_item(nmodels.OFCNetwork, ofc_net_id, network_id) def update_ofc_network(self, tenant_id, network_id, network_name): ofc_tenant_id = self._get_ofc_id("ofc_tenant", tenant_id) ofc_net_id = self._get_ofc_id("ofc_network", network_id) desc = "ID=%s Name=%s at Quantum." % (network_id, network_name) self.driver.update_network(ofc_tenant_id, ofc_net_id, desc) def exists_ofc_network(self, network_id): return self._exists_ofc_item("ofc_network", network_id) def delete_ofc_network(self, tenant_id, network_id): ofc_tenant_id = self._get_ofc_id("ofc_tenant", tenant_id) ofc_net_id = self._get_ofc_id("ofc_network", network_id) self.driver.delete_network(ofc_tenant_id, ofc_net_id) ndb.del_ofc_item(nmodels.OFCNetwork, ofc_net_id) # Port def create_ofc_port(self, tenant_id, network_id, port_id): ofc_tenant_id = self._get_ofc_id("ofc_tenant", tenant_id) ofc_net_id = self._get_ofc_id("ofc_network", network_id) portinfo = ndb.get_portinfo(port_id) if not portinfo: raise nexc.PortInfoNotFound(id=port_id) ofc_port_id = self.driver.create_port(ofc_tenant_id, ofc_net_id, portinfo, port_id) ndb.add_ofc_item(nmodels.OFCPort, ofc_port_id, port_id) def exists_ofc_port(self, port_id): return self._exists_ofc_item("ofc_port", port_id) def delete_ofc_port(self, tenant_id, network_id, port_id): ofc_tenant_id = self._get_ofc_id("ofc_tenant", tenant_id) ofc_net_id = self._get_ofc_id("ofc_network", network_id) ofc_port_id = self._get_ofc_id("ofc_port", port_id) self.driver.delete_port(ofc_tenant_id, ofc_net_id, ofc_port_id) ndb.del_ofc_item(nmodels.OFCPort, ofc_port_id) # PacketFilter def create_ofc_packet_filter(self, tenant_id, network_id, filter_id, filter_dict): ofc_tenant_id = self._get_ofc_id("ofc_tenant", tenant_id) ofc_net_id = self._get_ofc_id("ofc_network", network_id) in_port_id = filter_dict.get('in_port') portinfo = None if in_port_id: portinfo = ndb.get_portinfo(in_port_id) if not portinfo: raise nexc.PortInfoNotFound(id=in_port_id) ofc_pf_id = self.driver.create_filter(ofc_tenant_id, ofc_net_id, filter_dict, portinfo, filter_id) ndb.add_ofc_item(nmodels.OFCFilter, ofc_pf_id, filter_id) def exists_ofc_packet_filter(self, filter_id): return self._exists_ofc_item("ofc_packet_filter", filter_id) def delete_ofc_packet_filter(self, tenant_id, network_id, filter_id): ofc_tenant_id = self._get_ofc_id("ofc_tenant", tenant_id) ofc_net_id = self._get_ofc_id("ofc_network", network_id) ofc_pf_id = self._get_ofc_id("ofc_packet_filter", filter_id) res = self.driver.delete_filter(ofc_tenant_id, ofc_net_id, ofc_pf_id) ndb.del_ofc_item(nmodels.OFCFilter, ofc_pf_id)