# Copyright (c) 2016 Cisco Systems Inc. # 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. from neutron.db import models_v2 from neutron_lib.db import model_base import sqlalchemy as sa from sqlalchemy import orm from sqlalchemy.sql.expression import true from gbpservice.neutron.extensions import cisco_apic from gbpservice.neutron.extensions import cisco_apic_l3 class NetworkExtensionDb(model_base.BASEV2): __tablename__ = 'apic_aim_network_extensions' network_id = sa.Column( sa.String(36), sa.ForeignKey('networks.id', ondelete="CASCADE"), primary_key=True) external_network_dn = sa.Column(sa.String(1024)) nat_type = sa.Column(sa.Enum('distributed', 'edge', '')) svi = sa.Column(sa.Boolean) bgp_enable = sa.Column(sa.Boolean, default=False, nullable=False) bgp_type = sa.Column(sa.Enum('default_export', ''), default='default_export', nullable=False) bgp_asn = sa.Column(sa.String(64), default='0', nullable=False) network = orm.relationship(models_v2.Network, backref=orm.backref( 'aim_extension_mapping', lazy='joined', uselist=False, cascade='delete')) nested_domain_name = sa.Column(sa.String(1024), nullable=True) nested_domain_type = sa.Column(sa.String(1024), nullable=True) nested_domain_infra_vlan = sa.Column(sa.Integer, nullable=True) nested_domain_service_vlan = sa.Column(sa.Integer, nullable=True) nested_domain_node_network_vlan = sa.Column(sa.Integer, nullable=True) class NetworkExtensionCidrDb(model_base.BASEV2): __tablename__ = 'apic_aim_network_external_cidrs' network_id = sa.Column( sa.String(36), sa.ForeignKey('networks.id', ondelete="CASCADE"), primary_key=True) cidr = sa.Column(sa.String(64), primary_key=True) network = orm.relationship(models_v2.Network, backref=orm.backref( 'aim_extension_cidr_mapping', lazy='joined', uselist=True, cascade='delete')) class NetworkExtNestedDomainAllowedVlansDb(model_base.BASEV2): __tablename__ = 'apic_aim_network_nested_domain_allowed_vlans' # There is a single pool of VLANs for an APIC vlan = sa.Column(sa.Integer(), primary_key=True) network_id = sa.Column( sa.String(36), sa.ForeignKey('networks.id', ondelete="CASCADE")) network = orm.relationship(models_v2.Network, backref=orm.backref( 'aim_extension_domain_mapping', uselist=True, lazy='joined', cascade='delete')) class SubnetExtensionDb(model_base.BASEV2): __tablename__ = 'apic_aim_subnet_extensions' subnet_id = sa.Column( sa.String(36), sa.ForeignKey('subnets.id', ondelete="CASCADE"), primary_key=True) snat_host_pool = sa.Column(sa.Boolean) subnet = orm.relationship(models_v2.Subnet, backref=orm.backref( 'aim_extension_mapping', lazy='joined', uselist=False, cascade='delete')) class RouterExtensionContractDb(model_base.BASEV2): __tablename__ = 'apic_aim_router_external_contracts' router_id = sa.Column( sa.String(36), sa.ForeignKey('routers.id', ondelete="CASCADE"), primary_key=True) contract_name = sa.Column(sa.String(64), primary_key=True) provides = sa.Column(sa.Boolean, primary_key=True) class ExtensionDbMixin(object): def _set_if_not_none(self, res_dict, res_attr, db_attr): if db_attr is not None: res_dict[res_attr] = db_attr def get_network_extn_db(self, session, network_id): return self.get_network_extn_db_bulk(session, [network_id]).get( network_id, {}) def get_network_extn_db_bulk(self, session, network_ids): db_objs = (session.query(NetworkExtensionDb).filter( NetworkExtensionDb.network_id.in_(network_ids)).all()) db_cidrs = (session.query(NetworkExtensionCidrDb).filter( NetworkExtensionCidrDb.network_id.in_(network_ids)).all()) db_vlans = (session.query( NetworkExtNestedDomainAllowedVlansDb).filter( NetworkExtNestedDomainAllowedVlansDb.network_id.in_( network_ids)).all()) cidrs_by_net_id = {} vlans_by_net_id = {} for db_cidr in db_cidrs: cidrs_by_net_id.setdefault(db_cidr.network_id, []).append( db_cidr) for db_vlan in db_vlans: vlans_by_net_id.setdefault(db_vlan.network_id, []).append( db_vlan) result = {} for db_obj in db_objs: net_id = db_obj.network_id result.setdefault(net_id, self.make_network_extn_db_conf_dict( db_obj, cidrs_by_net_id.get(net_id, []), vlans_by_net_id.get(net_id, []))) return result def make_network_extn_db_conf_dict(self, ext_db, db_cidrs, db_vlans): net_res = {} db_obj = ext_db if db_obj: self._set_if_not_none(net_res, cisco_apic.EXTERNAL_NETWORK, db_obj['external_network_dn']) self._set_if_not_none(net_res, cisco_apic.NAT_TYPE, db_obj['nat_type']) self._set_if_not_none(net_res, cisco_apic.SVI, db_obj['svi']) net_res[cisco_apic.BGP] = db_obj['bgp_enable'] net_res[cisco_apic.BGP_TYPE] = db_obj['bgp_type'] net_res[cisco_apic.BGP_ASN] = db_obj['bgp_asn'] net_res[cisco_apic.NESTED_DOMAIN_NAME] = ( db_obj['nested_domain_name']) net_res[cisco_apic.NESTED_DOMAIN_TYPE] = ( db_obj['nested_domain_type']) net_res[cisco_apic.NESTED_DOMAIN_INFRA_VLAN] = ( db_obj['nested_domain_infra_vlan']) net_res[cisco_apic.NESTED_DOMAIN_SERVICE_VLAN] = ( db_obj['nested_domain_service_vlan']) net_res[cisco_apic.NESTED_DOMAIN_NODE_NETWORK_VLAN] = ( db_obj['nested_domain_node_network_vlan']) net_res[cisco_apic.NESTED_DOMAIN_ALLOWED_VLANS] = [ c.vlan for c in db_vlans] if net_res.get(cisco_apic.EXTERNAL_NETWORK): net_res[cisco_apic.EXTERNAL_CIDRS] = [c.cidr for c in db_cidrs] return net_res def set_network_extn_db(self, session, network_id, res_dict): with session.begin(subtransactions=True): db_obj = (session.query(NetworkExtensionDb).filter_by( network_id=network_id).first()) db_obj = db_obj or NetworkExtensionDb(network_id=network_id) if cisco_apic.EXTERNAL_NETWORK in res_dict: db_obj['external_network_dn'] = ( res_dict[cisco_apic.EXTERNAL_NETWORK]) if cisco_apic.NAT_TYPE in res_dict: db_obj['nat_type'] = res_dict[cisco_apic.NAT_TYPE] if cisco_apic.SVI in res_dict: db_obj['svi'] = res_dict[cisco_apic.SVI] if cisco_apic.BGP in res_dict: db_obj['bgp_enable'] = res_dict[cisco_apic.BGP] if cisco_apic.BGP_TYPE in res_dict: db_obj['bgp_type'] = res_dict[cisco_apic.BGP_TYPE] if cisco_apic.BGP_ASN in res_dict: db_obj['bgp_asn'] = res_dict[cisco_apic.BGP_ASN] if cisco_apic.NESTED_DOMAIN_NAME in res_dict: db_obj['nested_domain_name'] = res_dict[ cisco_apic.NESTED_DOMAIN_NAME] if cisco_apic.NESTED_DOMAIN_TYPE in res_dict: db_obj['nested_domain_type'] = res_dict[ cisco_apic.NESTED_DOMAIN_TYPE] if cisco_apic.NESTED_DOMAIN_INFRA_VLAN in res_dict: db_obj['nested_domain_infra_vlan'] = res_dict[ cisco_apic.NESTED_DOMAIN_INFRA_VLAN] if cisco_apic.NESTED_DOMAIN_SERVICE_VLAN in res_dict: db_obj['nested_domain_service_vlan'] = res_dict[ cisco_apic.NESTED_DOMAIN_SERVICE_VLAN] if cisco_apic.NESTED_DOMAIN_NODE_NETWORK_VLAN in res_dict: db_obj['nested_domain_node_network_vlan'] = res_dict[ cisco_apic.NESTED_DOMAIN_NODE_NETWORK_VLAN] session.add(db_obj) if cisco_apic.EXTERNAL_CIDRS in res_dict: self._update_list_attr(session, NetworkExtensionCidrDb, 'cidr', res_dict[cisco_apic.EXTERNAL_CIDRS], network_id=network_id) if cisco_apic.NESTED_DOMAIN_ALLOWED_VLANS in res_dict: self._update_list_attr( session, NetworkExtNestedDomainAllowedVlansDb, 'vlan', res_dict[cisco_apic.NESTED_DOMAIN_ALLOWED_VLANS], network_id=network_id) def get_network_ids_by_ext_net_dn(self, session, dn, lock_update=False): ids = session.query(NetworkExtensionDb.network_id).filter_by( external_network_dn=dn) if lock_update: ids = ids.with_lockmode('update') return [i[0] for i in ids] def get_network_ids_by_l3out_dn(self, session, dn, lock_update=False): ids = session.query(NetworkExtensionDb.network_id).filter( NetworkExtensionDb.external_network_dn.like(dn + "/%")) if lock_update: ids = ids.with_lockmode('update') return [i[0] for i in ids] def get_svi_network_ids_by_l3out_dn(self, session, dn, lock_update=False): ids = session.query(NetworkExtensionDb.network_id).filter( NetworkExtensionDb.external_network_dn.like(dn + "/%"), NetworkExtensionDb.svi == true()) if lock_update: ids = ids.with_lockmode('update') return [i[0] for i in ids] def get_external_cidrs_by_ext_net_dn(self, session, dn, lock_update=False): ctab = NetworkExtensionCidrDb ntab = NetworkExtensionDb cidrs = session.query(ctab.cidr).join( ntab, ntab.network_id == ctab.network_id).filter( ntab.external_network_dn == dn).distinct() if lock_update: cidrs = cidrs.with_lockmode('update') return [c[0] for c in cidrs] def get_subnet_extn_db(self, session, subnet_id): db_obj = (session.query(SubnetExtensionDb).filter_by( subnet_id=subnet_id).first()) result = {} if db_obj: self._set_if_not_none(result, cisco_apic.SNAT_HOST_POOL, db_obj['snat_host_pool']) return result def set_subnet_extn_db(self, session, subnet_id, res_dict): db_obj = (session.query(SubnetExtensionDb).filter_by( subnet_id=subnet_id).first()) db_obj = db_obj or SubnetExtensionDb(subnet_id=subnet_id) if cisco_apic.SNAT_HOST_POOL in res_dict: db_obj['snat_host_pool'] = res_dict[cisco_apic.SNAT_HOST_POOL] session.add(db_obj) def get_router_extn_db(self, session, router_id): db_contracts = (session.query(RouterExtensionContractDb).filter_by( router_id=router_id).all()) return {cisco_apic_l3.EXTERNAL_PROVIDED_CONTRACTS: [c['contract_name'] for c in db_contracts if c['provides']], cisco_apic_l3.EXTERNAL_CONSUMED_CONTRACTS: [c['contract_name'] for c in db_contracts if not c['provides']]} def _update_list_attr(self, session, db_model, column, new_values, **filters): if new_values is None: return rows = session.query(db_model).filter_by(**filters).all() new_values = set(new_values) for r in rows: if r[column] in new_values: new_values.discard(r[column]) else: session.delete(r) for v in new_values: attr = {column: v} attr.update(filters) db_obj = db_model(**attr) session.add(db_obj) def set_router_extn_db(self, session, router_id, res_dict): with session.begin(subtransactions=True): if cisco_apic_l3.EXTERNAL_PROVIDED_CONTRACTS in res_dict: self._update_list_attr(session, RouterExtensionContractDb, 'contract_name', res_dict[cisco_apic_l3.EXTERNAL_PROVIDED_CONTRACTS], router_id=router_id, provides=True) if cisco_apic_l3.EXTERNAL_CONSUMED_CONTRACTS in res_dict: self._update_list_attr(session, RouterExtensionContractDb, 'contract_name', res_dict[cisco_apic_l3.EXTERNAL_CONSUMED_CONTRACTS], router_id=router_id, provides=False)