# vim: tabstop=4 shiftwidth=4 softtabstop=4 # Copyright 2012 Isaku Yamahata # # 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: Isaku Yamahata from ryu.app import client from ryu.app.client import ignore_http_not_found from ryu.app import rest_nw_id from sqlalchemy.exc import IntegrityError from sqlalchemy.orm import exc as orm_exc from quantum.common import constants as q_const from quantum.common import exceptions as q_exc from quantum.common import topics from quantum.db import api as db from quantum.db import db_base_plugin_v2 from quantum.db.dhcp_rpc_base import DhcpRpcCallbackMixin from quantum.db import l3_db from quantum.db import models_v2 from quantum.openstack.common import cfg from quantum.openstack.common import log as logging from quantum.openstack.common import rpc from quantum.openstack.common.rpc import dispatcher from quantum.plugins.ryu.common import config from quantum.plugins.ryu.db import api_v2 as db_api_v2 from quantum.plugins.ryu import ofp_service_type LOG = logging.getLogger(__name__) class RyuQuantumPluginV2(db_base_plugin_v2.QuantumDbPluginV2, l3_db.L3_NAT_db_mixin): supported_extension_aliases = ["router"] def __init__(self, configfile=None): options = {"sql_connection": cfg.CONF.DATABASE.sql_connection} options.update({'base': models_v2.model_base.BASEV2}) reconnect_interval = cfg.CONF.DATABASE.reconnect_interval options.update({"reconnect_interval": reconnect_interval}) db.configure_db(options) self.tunnel_key = db_api_v2.TunnelKey( cfg.CONF.OVS.tunnel_key_min, cfg.CONF.OVS.tunnel_key_max) ofp_con_host = cfg.CONF.OVS.openflow_controller ofp_api_host = cfg.CONF.OVS.openflow_rest_api if ofp_con_host is None or ofp_api_host is None: raise q_exc.Invalid(_('invalid configuration. check ryu.ini')) hosts = [(ofp_con_host, ofp_service_type.CONTROLLER), (ofp_api_host, ofp_service_type.REST_API)] db_api_v2.set_ofp_servers(hosts) self.client = client.OFPClient(ofp_api_host) self.tun_client = client.TunnelClient(ofp_api_host) for nw_id in rest_nw_id.RESERVED_NETWORK_IDS: if nw_id != rest_nw_id.NW_ID_UNKNOWN: self.client.update_network(nw_id) self._setup_rpc() # register known all network list on startup self._create_all_tenant_network() def _setup_rpc(self): self.conn = rpc.create_connection(new=True) self.callback = DhcpRpcCallbackMixin() self.dispatcher = dispatcher.RpcDispatcher([self.callback]) self.conn.create_consumer(topics.PLUGIN, self.dispatcher, fanout=False) self.conn.consume_in_thread() def _create_all_tenant_network(self): for net in db_api_v2.network_all_tenant_list(): self.client.update_network(net.id) for tun in self.tunnel_key.all_list(): self.tun_client.update_tunnel_key(tun.network_id, tun.tunnel_key) session = db.get_session() for port_binding in db_api_v2.port_binding_all_list(session): network_id = port_binding.network_id dpid = port_binding.dpid port_no = port_binding.port_no try: port = session.query(models_v2.Port).filter( models_v2.Port.id == port_binding.port_id).one() except orm_exc.NoResultFound: continue except orm_exc.MultipleResultsFound: continue self.client.update_port(network_id, dpid, port_no) self.client.update_mac(network_id, dpid, port_no, port.mac_address) def _client_create_network(self, net_id, tunnel_key): self.client.create_network(net_id) self.tun_client.create_tunnel_key(net_id, tunnel_key) def _client_delete_network(self, net_id): client.ignore_http_not_found( lambda: self.client.delete_network(net_id)) client.ignore_http_not_found( lambda: self.tun_client.delete_tunnel_key(net_id)) def create_network(self, context, network): session = context.session with session.begin(subtransactions=True): net = super(RyuQuantumPluginV2, self).create_network(context, network) self._process_l3_create(context, network['network'], net['id']) self._extend_network_dict_l3(context, net) tunnel_key = self.tunnel_key.allocate(session, net['id']) try: self._client_create_network(net['id'], tunnel_key) except: self._client_delete_network(net['id']) raise return net def update_network(self, context, id, network): session = context.session with session.begin(subtransactions=True): net = super(RyuQuantumPluginV2, self).update_network(context, id, network) self._process_l3_update(context, network['network'], id) self._extend_network_dict_l3(context, net) return net def delete_network(self, context, id): self._client_delete_network(id) session = context.session with session.begin(subtransactions=True): self.tunnel_key.delete(session, id) super(RyuQuantumPluginV2, self).delete_network(context, id) def get_network(self, context, id, fields=None): net = super(RyuQuantumPluginV2, self).get_network(context, id, None) self._extend_network_dict_l3(context, net) return self._fields(net, fields) def get_networks(self, context, filters=None, fields=None): nets = super(RyuQuantumPluginV2, self).get_networks(context, filters, None) for net in nets: self._extend_network_dict_l3(context, net) nets = self._filter_nets_l3(context, nets, filters) return [self._fields(net, fields) for net in nets] def delete_port(self, context, id, l3_port_check=True): with context.session.begin(subtransactions=True): port = self._get_port(context, id) net_id = port.network_id try: port_binding = db_api_v2.port_binding_destroy(context.session, port.id, net_id) datapath_id = port_binding.dpid port_no = port_binding.port_no ignore_http_not_found( lambda: self.client.delete_port(net_id, datapath_id, port_no)) except q_exc.PortNotFound: pass # if needed, check to see if this is a port owned by # and l3-router. If so, we should prevent deletion. if l3_port_check: self.prevent_l3_port_deletion(context, id) self.disassociate_floatingips(context, id) return super(RyuQuantumPluginV2, self).delete_port(context, id) def update_port(self, context, id, port): p = super(RyuQuantumPluginV2, self).update_port(context, id, port) net_id = p['network_id'] mac_address = p['mac_address'] deleted = port['port'].get('deleted', False) if deleted: session = context.session try: db_api_v2.port_binding_destroy(session, id, net_id) except q_exc.PortNotFound: pass db_api_v2.set_port_status(session, id, q_const.PORT_STATUS_DOWN) return p datapath_id = port['port'].get('datapath_id', None) port_no = port['port'].get('port_no', None) if datapath_id is None or port_no is None: LOG.debug('p %s', p) return p try: port_binding = db_api_v2.port_binding_get(id, net_id) except orm_exc.NoResultFound: try: db_api_v2.port_binding_create(id, net_id, datapath_id, port_no) except IntegrityError: # TODO:XXX should do transaction? return p else: self.client.create_port(net_id, datapath_id, port_no) self.client.create_mac(net_id, datapath_id, port_no, mac_address) else: if (port_binding.dpid != datapath_id or port_binding.port_no != port_no): variables = {'datapath_id': datapath_id, 'port_no': port_no, 'port_binding_dpid': port_binding.dpid, 'port_binding_port_no': port_binding.port_no} raise q_exc.InvalidInput( error_message=_('invalid (datapath_id, port_no) ' 'is requested' '(%(datapath_id)s, %(port_no)s), acutal' '(%(port_binding_dpid)s, ' '%(port_binding_port_no)s)') % variables) self.client.update_network(net_id) self.client.update_port(net_id, datapath_id, port_no) self.client.update_mac(net_id, datapath_id, port_no, mac_address) return p