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# Copyright (c) 2017 Orange. # 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 oslo_log import log as logging
from oslo_versionedobjects import fields as obj_fields
from networking_bgpvpn.neutron.db import bgpvpn_db
from neutron.api.rpc.callbacks import resources
from neutron.objects import base
from neutron.objects.ports import IPAllocation
from neutron.objects.ports import Port
from neutron.objects.router import RouterPort
from neutron.objects.subnet import Subnet
from neutron_lib.api.definitions import bgpvpn as bgpvpn_api
from neutron_lib.api.definitions import bgpvpn_routes_control as bgpvpn_rc_api
from neutron_lib import constants
from neutron_lib.objects import common_types
from neutron_lib.utils import net as net_utils
LOG = logging.getLogger(__name__)
def _get_gateway_mac_by_subnet(obj_context, subnet):
if not subnet.gateway_ip:
LOG.error("no gateway IP defined for subnet %s", subnet)
return None
ip_allocation = IPAllocation.get_object(obj_context,
network_id=subnet.network_id,
subnet_id=subnet.id,
ip_address=subnet.gateway_ip)
# pylint: disable=no-member
if ip_allocation:
port = Port.get_object(obj_context, id=ip_allocation.port_id)
return str(port.mac_address)
else:
LOG.debug("no port allocated to gateway IP for subnet %s", subnet.id)
return None
def _get_subnets_info(obj_context, net_id):
subnets = Subnet.get_objects(obj_context, network_id=net_id)
return [
{'ip_version': subnet.ip_version,
'id': subnet.id,
'cidr': subnet.cidr,
'gateway_ip': subnet.gateway_ip,
'gateway_mac': _get_gateway_mac_by_subnet(obj_context, subnet)
}
for subnet in subnets
]
class BGPVPNTypeField(obj_fields.AutoTypedField):
AUTO_TYPE = obj_fields.Enum(valid_values=bgpvpn_api.BGPVPN_TYPES)
@base.NeutronObjectRegistry.register
class BGPVPN(base.NeutronDbObject):
# Version 1.0: Initial version
VERSION = '1.0'
db_model = bgpvpn_db.BGPVPN
fields = {
'id': common_types.UUIDField(),
'project_id': obj_fields.StringField(),
'type': BGPVPNTypeField(),
'name': obj_fields.StringField(nullable=True,
default=None),
'route_targets': obj_fields.ListOfStringsField(nullable=True,
default=[]),
'import_targets': obj_fields.ListOfStringsField(nullable=True,
default=[]),
'export_targets': obj_fields.ListOfStringsField(nullable=True,
default=[]),
'route_distinguishers': obj_fields.ListOfStringsField(nullable=True,
default=[]),
'local_pref': obj_fields.IntegerField(nullable=True),
'vni': obj_fields.IntegerField(nullable=True),
}
fields_no_update = ['id',
'project_id',
'type',
'port_id']
foreign_keys = {'BGPVPNNetAssociation': {'id': 'bgpvpn_id'},
'BGPVPNRouterAssociation': {'id': 'bgpvpn_id'},
'BGPVPNPortAssociation': {'id': 'bgpvpn_id'},
'BGPVPNPortAssociationRoute': {'id': 'bgpvpn_id'},
}
@classmethod
def modify_fields_from_db(cls, db_obj):
result = super().modify_fields_from_db(db_obj)
for field in ['route_targets',
'import_targets',
'export_targets',
'route_distinguishers']:
if field in result:
result[field] = (result[field].split(',')
if result[field] else [])
return result
@classmethod
def modify_fields_to_db(cls, fields):
result = super().modify_fields_to_db(fields)
for field in ['route_targets',
'import_targets',
'export_targets',
'route_distinguishers']:
if field in result:
result[field] = ','.join(result.get(field, []))
return result
@base.NeutronObjectRegistry.register
class BGPVPNNetAssociation(base.NeutronDbObject):
# Version 1.0: Initial version
VERSION = '1.0'
db_model = bgpvpn_db.BGPVPNNetAssociation
fields = {
'id': common_types.UUIDField(),
'project_id': obj_fields.StringField(),
'bgpvpn_id': obj_fields.StringField(),
'bgpvpn': obj_fields.ObjectField('BGPVPN'),
'network_id': obj_fields.StringField(),
'subnets': common_types.ListOfDictOfMiscValuesField(nullable=True)
}
fields_no_update = ['id',
'project_id',
'bgpvpn_id',
'network_id']
synthetic_fields = ['bgpvpn',
'subnets']
def __init__(self, context=None, **kwargs):
super().__init__(context, **kwargs)
def create(self):
with self.db_context_writer(self.obj_context):
super().create()
self.obj_load_attr('subnets')
def obj_load_attr(self, attrname):
if attrname == 'subnets':
self._load_subnets()
else:
super().obj_load_attr(attrname)
def _load_subnets(self, db_obj=None):
# pylint: disable=no-member
subnets_info = _get_subnets_info(self.obj_context, self.network_id)
setattr(self, 'subnets', subnets_info)
self.obj_reset_changes(['subnets'])
def from_db_object(self, obj):
super().from_db_object(obj)
self._load_subnets(obj)
def all_subnets(self, network_id):
# pylint: disable=no-member
return self.subnets
@base.NeutronObjectRegistry.register
class BGPVPNRouterAssociation(base.NeutronDbObject):
# Version 1.0: Initial version
VERSION = '1.0'
db_model = bgpvpn_db.BGPVPNRouterAssociation
fields = {
'id': common_types.UUIDField(),
'project_id': obj_fields.StringField(),
'bgpvpn_id': obj_fields.StringField(),
'bgpvpn': obj_fields.ObjectField('BGPVPN'),
'router_id': obj_fields.StringField(),
'connected_networks':
common_types.ListOfDictOfMiscValuesField(nullable=True)
}
fields_no_update = ['id',
'project_id',
'bgpvpn_id',
'router_id']
synthetic_fields = ['bgpvpn',
'connected_networks']
def __init__(self, context=None, **kwargs):
super().__init__(context, **kwargs)
def create(self):
with self.db_context_writer(self.obj_context):
super().create()
self.obj_load_attr('connected_networks')
def update(self):
with self.db_context_writer(self.obj_context):
if 'connected_networks' in self.obj_what_changed():
self.obj_load_attr('connected_networks')
super().update()
def obj_load_attr(self, attrname):
if attrname == 'connected_networks':
return self._load_connected_networks()
super().obj_load_attr(attrname)
@classmethod
def get_objects(cls, context, _pager=None, validate_filters=True,
**kwargs):
if 'network_id' in kwargs and 'router_id' not in kwargs:
ports = Port.get_objects(
context,
network_id=kwargs.pop('network_id'),
device_owner=constants.DEVICE_OWNER_ROUTER_INTF)
router_assocs = []
for port in ports:
# pylint: disable=no-member
router_assocs.extend(
super().get_objects(
context, _pager=_pager,
validate_filters=validate_filters,
router_id=RouterPort.get_object(
context, port_id=port.id).router_id,
**kwargs)
)
return router_assocs
return super().get_objects(
context, _pager=_pager, validate_filters=validate_filters,
**kwargs)
# pylint: disable=no-member
def _load_connected_networks(self, db_obj=None):
# NOTE(tmorin): can be improved by directly looking up
# Ports with device_id=self.router_id
router_ports = RouterPort.get_objects(
self.obj_context,
router_id=self.router_id)
connected_networks = []
for router_port in router_ports:
port = Port.get_object(self.obj_context,
id=router_port.port_id)
if port:
# router gateway networks are not considered as requiring
# to be bound to BGPVPNs
if port.device_owner == constants.DEVICE_OWNER_ROUTER_GW:
LOG.debug("skipping port %s, because router gateway",
port.id)
continue
connected_networks.append({
'network_id': port.network_id,
'subnets': _get_subnets_info(self.obj_context,
port.network_id)
})
else:
LOG.warning("Couldn't find Port for RouterPort (router:%s,"
"port:%s)", router_port.router_id,
router_port.port_id)
setattr(self, 'connected_networks', connected_networks)
self.obj_reset_changes(['connected_networks'])
def from_db_object(self, obj):
super().from_db_object(obj)
self._load_connected_networks(obj)
def all_subnets(self, network_id):
# pylint: disable=no-member
for connected_net in self.connected_networks:
if connected_net['network_id'] == network_id:
return connected_net['subnets']
return []
@base.NeutronObjectRegistry.register
class BGPVPNPortAssociation(base.NeutronDbObject):
# Version 1.0: Initial version
VERSION = '1.0'
db_model = bgpvpn_db.BGPVPNPortAssociation
fields = {
'id': common_types.UUIDField(),
'project_id': obj_fields.StringField(),
'bgpvpn_id': obj_fields.StringField(),
'bgpvpn': obj_fields.ObjectField('BGPVPN'),
'port_id': obj_fields.StringField(),
'subnets': common_types.ListOfDictOfMiscValuesField(nullable=True),
'routes': obj_fields.ListOfObjectsField('BGPVPNPortAssociationRoute'),
'advertise_fixed_ips': obj_fields.BooleanField(default=True)
}
fields_no_update = ['id',
'project_id',
'bgpvpn_id',
'port_id']
synthetic_fields = ['bgpvpn',
'subnets',
'routes']
def __init__(self, context=None, **kwargs):
super().__init__(context, **kwargs)
def create(self):
with self.db_context_writer(self.obj_context):
super().create()
self.obj_load_attr('subnets')
def obj_load_attr(self, attrname):
if attrname == 'subnets':
self._load_subnets()
else:
super().obj_load_attr(attrname)
def _load_subnets(self, db_obj=None):
# pylint: disable=no-member
port = Port.get_object(self.obj_context, id=self.port_id)
subnets_info = _get_subnets_info(self.obj_context, port.network_id)
setattr(self, 'subnets', subnets_info)
self.obj_reset_changes(['subnets'])
def from_db_object(self, obj):
super().from_db_object(obj)
self._load_subnets(obj)
def all_subnets(self, network_id):
# pylint: disable=no-member
return self.subnets
class BGPVPNPortAssociationRouteTypeField(obj_fields.AutoTypedField):
AUTO_TYPE = obj_fields.Enum(valid_values=bgpvpn_rc_api.ROUTE_TYPES)
@base.NeutronObjectRegistry.register
class BGPVPNPortAssociationRoute(base.NeutronDbObject):
# Version 1.0: Initial version
VERSION = '1.0'
db_model = bgpvpn_db.BGPVPNPortAssociationRoute
fields = {
'id': common_types.UUIDField(),
'port_association_id': common_types.UUIDField(),
'type': BGPVPNPortAssociationRouteTypeField(),
'prefix': common_types.IPNetworkField(nullable=True,
default=None),
'local_pref': obj_fields.IntegerField(nullable=True),
'bgpvpn_id': obj_fields.StringField(nullable=True,
default=None),
'bgpvpn': obj_fields.ObjectField('BGPVPN',
nullable=True,
default=None),
}
fields_no_update = fields.keys()
foreign_keys = {'BGPVPNPortAssociation': {'port_association_id': 'id'},
'BGPVPN': {'bgpvpn_id': 'id'},
}
synthetic_fields = ['bgpvpn']
def __init__(self, *args, **kwargs):
super().__init__(*args, **kwargs)
@classmethod
def modify_fields_from_db(cls, db_obj):
fields = super().modify_fields_from_db(db_obj)
if 'prefix' in fields and fields['prefix'] is not None:
fields['prefix'] = net_utils.AuthenticIPNetwork(fields['prefix'])
return fields
@classmethod
def modify_fields_to_db(cls, fields):
result = super().modify_fields_to_db(fields)
if 'prefix' in result and result['prefix'] is not None:
result['prefix'] = cls.filter_to_str(result['prefix'])
return result
# we use these objects in set() in bgpvpn agent extension
def __eq__(self, other):
# pylint: disable=no-member
return ((self.type, self.prefix, self.bgpvpn_id) ==
(other.type, other.prefix, other.bgpvpn_id))
def __hash__(self):
# pylint: disable=no-member
return hash((self.type, self.prefix, self.bgpvpn_id))
resources.register_resource_class(BGPVPN)
resources.register_resource_class(BGPVPNNetAssociation)
resources.register_resource_class(BGPVPNRouterAssociation)
resources.register_resource_class(BGPVPNPortAssociation)
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