# Copyright (c) 2014 Freescale Semiconductor # # 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 oslo_log import helpers as log_helpers from oslo_log import log as logging from neutron.common import constants as n_const from neutron.extensions import portbindings from neutron.i18n import _LI from neutron.plugins.common import constants from neutron.plugins.ml2 import driver_api as api from neutron.plugins.ml2.drivers.freescale import config # noqa LOG = logging.getLogger(__name__) class FslsdnMechanismDriver(api.MechanismDriver): """Freescale SDN OS Mechanism Driver for ML2 Plugin.""" @log_helpers.log_method_call def initialize(self): """Initialize the Mechanism driver.""" self.vif_type = portbindings.VIF_TYPE_OVS self.vif_details = {portbindings.CAP_PORT_FILTER: True} LOG.info(_LI("Initializing CRD client... ")) self._crdclient = config.get_crdclient() # Network Management @staticmethod @log_helpers.log_method_call def _prepare_crd_network(network, segments): """Helper function to create 'network' data.""" return {'network': {'network_id': network['id'], 'tenant_id': network['tenant_id'], 'name': network['name'], 'status': network['status'], 'admin_state_up': network['admin_state_up'], 'segments': segments, }} def create_network_postcommit(self, context): """Send create_network data to CRD service.""" network = context.current segments = context.network_segments body = self._prepare_crd_network(network, segments) self._crdclient.create_network(body=body) LOG.debug("create_network update sent to CRD Server: %s", body) def update_network_postcommit(self, context): """Send update_network data to CRD service.""" network = context.current segments = context.network_segments body = self._prepare_crd_network(network, segments) self._crdclient.update_network(network['id'], body=body) LOG.debug("update_network update sent to CRD Server: %s", body) def delete_network_postcommit(self, context): """Send delete_network data to CRD service.""" network = context.current self._crdclient.delete_network(network['id']) LOG.debug( "delete_network update sent to CRD Server: %s", network['id']) # Port Management @staticmethod def _prepare_crd_port(port): """Helper function to prepare 'port' data.""" crd_subnet_id = '' crd_ipaddress = '' crd_sec_grps = '' # Since CRD accepts one Fixed IP, # so handle only one fixed IP per port. if len(port['fixed_ips']) > 1: LOG.debug("More than one fixed IP exists - using first one.") # check empty fixed_ips list, move on if one or more exists if len(port['fixed_ips']) != 0: crd_subnet_id = port['fixed_ips'][0]['subnet_id'] crd_ipaddress = port['fixed_ips'][0]['ip_address'] LOG.debug("Handling fixed IP {subnet_id:%(subnet)s, " "ip_address:%(ip)s}", {'subnet': crd_subnet_id, 'ip': crd_ipaddress}) else: LOG.debug("No fixed IPs found.") if 'security_groups' in port: crd_sec_grps = ','.join(port['security_groups']) return {'port': {'port_id': port['id'], 'tenant_id': port['tenant_id'], 'name': port['name'], 'network_id': port['network_id'], 'subnet_id': crd_subnet_id, 'mac_address': port['mac_address'], 'device_id': port['device_id'], 'ip_address': crd_ipaddress, 'admin_state_up': port['admin_state_up'], 'status': port['status'], 'device_owner': port['device_owner'], 'security_groups': crd_sec_grps, }} def create_port_postcommit(self, context): """Send create_port data to CRD service.""" port = context.current body = self._prepare_crd_port(port) self._crdclient.create_port(body=body) LOG.debug("create_port update sent to CRD Server: %s", body) def delete_port_postcommit(self, context): """Send delete_port data to CRD service.""" port = context.current self._crdclient.delete_port(port['id']) LOG.debug("delete_port update sent to CRD Server: %s", port['id']) # Subnet Management @staticmethod @log_helpers.log_method_call def _prepare_crd_subnet(subnet): """Helper function to prepare 'subnet' data.""" crd_allocation_pools = '' crd_dns_nameservers = '' crd_host_routes = '' # Handling Allocation IPs if 'allocation_pools' in subnet: a_pools = subnet['allocation_pools'] crd_allocation_pools = ','.join(["%s-%s" % (p['start'], p['end']) for p in a_pools]) # Handling Host Routes if 'host_routes' in subnet: crd_host_routes = ','.join(["%s-%s" % (r['destination'], r['nexthop']) for r in subnet['host_routes']]) # Handling DNS Nameservers if 'dns_nameservers' in subnet: crd_dns_nameservers = ','.join(subnet['dns_nameservers']) # return Subnet Data return {'subnet': {'subnet_id': subnet['id'], 'tenant_id': subnet['tenant_id'], 'name': subnet['name'], 'network_id': subnet['network_id'], 'ip_version': subnet['ip_version'], 'cidr': subnet['cidr'], 'gateway_ip': subnet['gateway_ip'], 'dns_nameservers': crd_dns_nameservers, 'allocation_pools': crd_allocation_pools, 'host_routes': crd_host_routes, }} def create_subnet_postcommit(self, context): """Send create_subnet data to CRD service.""" subnet = context.current body = self._prepare_crd_subnet(subnet) self._crdclient.create_subnet(body=body) LOG.debug("create_subnet update sent to CRD Server: %s", body) def update_subnet_postcommit(self, context): """Send update_subnet data to CRD service.""" subnet = context.current body = self._prepare_crd_subnet(subnet) self._crdclient.update_subnet(subnet['id'], body=body) LOG.debug("update_subnet update sent to CRD Server: %s", body) def delete_subnet_postcommit(self, context): """Send delete_subnet data to CRD service.""" subnet = context.current self._crdclient.delete_subnet(subnet['id']) LOG.debug("delete_subnet update sent to CRD Server: %s", subnet['id']) def bind_port(self, context): """Set porting binding data for use with nova.""" LOG.debug("Attempting to bind port %(port)s on " "network %(network)s", {'port': context.current['id'], 'network': context.network.current['id']}) # Prepared porting binding data for segment in context.segments_to_bind: if self.check_segment(segment): context.set_binding(segment[api.ID], self.vif_type, self.vif_details, status=n_const.PORT_STATUS_ACTIVE) LOG.debug("Bound using segment: %s", segment) return else: LOG.debug("Refusing to bind port for segment ID %(id)s, " "segment %(seg)s, phys net %(physnet)s, and " "network type %(nettype)s", {'id': segment[api.ID], 'seg': segment[api.SEGMENTATION_ID], 'physnet': segment[api.PHYSICAL_NETWORK], 'nettype': segment[api.NETWORK_TYPE]}) @log_helpers.log_method_call def check_segment(self, segment): """Verify a segment is valid for the FSL SDN MechanismDriver.""" return segment[api.NETWORK_TYPE] in [constants.TYPE_VLAN, constants.TYPE_VXLAN]