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neutron/neutron/agent/linux/pd_driver.py

57 lines
1.8 KiB

# Copyright 2015 Cisco Systems
# 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.
import abc
import six
from neutron.conf.agent import common as agent_conf
agent_conf.register_pddriver_opts()
@six.add_metaclass(abc.ABCMeta)
class PDDriverBase(object):
def __init__(self, router_id, subnet_id, ri_ifname):
self.router_id = router_id
self.subnet_id = subnet_id
self.ri_ifname = ri_ifname
@abc.abstractmethod
def enable(self, pmon, router_ns, ex_gw_ifname, lla):
"""Enable IPv6 Prefix Delegation for this PDDriver on the given
external interface, with the given link local address
"""
@abc.abstractmethod
def disable(self, pmon, router_ns):
"""Disable IPv6 Prefix Delegation for this PDDriver
"""
@abc.abstractmethod
def get_prefix(self):
"""Get the current assigned prefix for this PDDriver from the PD agent.
If no prefix is currently assigned, return
neutron_lib.constants.PROVISIONAL_IPV6_PD_PREFIX
"""
@staticmethod
@abc.abstractmethod
def get_sync_data():
"""Get the latest router_id, subnet_id, and ri_ifname from the PD agent
so that the PDDriver can be kept up to date
"""