67 lines
2.2 KiB
Python
67 lines
2.2 KiB
Python
# Copyright (C) 2017 Nippon Telegraph and Telephone Corporation.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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Defines data types and models required specifically for
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L2VPN Flow Specification support.
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"""
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import logging
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from ryu.lib.packet.bgp import FlowSpecL2VPNNLRI
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from ryu.lib.packet.bgp import RF_L2VPN_FLOWSPEC
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from ryu.services.protocols.bgp.info_base.vpn import VpnDest
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from ryu.services.protocols.bgp.info_base.vpn import VpnPath
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from ryu.services.protocols.bgp.info_base.vpn import VpnTable
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LOG = logging.getLogger('bgpspeaker.info_base.l2vpnfs')
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class L2VPNFlowSpecDest(VpnDest):
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"""L2VPN Flow Specification Destination
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Store Flow Specification Paths.
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"""
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ROUTE_FAMILY = RF_L2VPN_FLOWSPEC
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class L2VPNFlowSpecTable(VpnTable):
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"""Global table to store L2VPN Flow Specification routing information.
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Uses `L2VPNFlowSpecDest` to store destination information for each known
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Flow Specification paths.
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"""
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ROUTE_FAMILY = RF_L2VPN_FLOWSPEC
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VPN_DEST_CLASS = L2VPNFlowSpecDest
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class L2VPNFlowSpecPath(VpnPath):
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"""Represents a way of reaching an L2VPN Flow Specification destination."""
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ROUTE_FAMILY = RF_L2VPN_FLOWSPEC
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VRF_PATH_CLASS = None # defined in init - anti cyclic import hack
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NLRI_CLASS = FlowSpecL2VPNNLRI
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def __init__(self, *args, **kwargs):
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# Set dummy IP address.
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kwargs['nexthop'] = '0.0.0.0'
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super(L2VPNFlowSpecPath, self).__init__(*args, **kwargs)
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from ryu.services.protocols.bgp.info_base.vrfl2vpnfs import(
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L2vpnFlowSpecPath)
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self.VRF_PATH_CLASS = L2vpnFlowSpecPath
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# Because the L2VPN Flow Specification does not require nexthop,
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# initialize with None.
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self._nexthop = None
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