--- /dev/null
+# Copyright (C) 2017 Nippon Telegraph and Telephone Corporation.
+#
+# 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.
+
+"""
+ Defines data types and models required specifically
+ for VRF (for IPv4 Flow Specification) support.
+ Represents data structures for VRF not VPN/global.
+ (Inside VRF you have IPv4 Flow Specification prefixes
+ and inside VPN you have VPNv4 Flow Specification prefixes)
+"""
+
+import logging
+
+from ryu.lib.packet.bgp import RF_IPv4_FLOWSPEC
+from ryu.lib.packet.bgp import RF_VPNv4_FLOWSPEC
+from ryu.lib.packet.bgp import FlowSpecIPv4NLRI
+from ryu.lib.packet.bgp import FlowSpecVPNv4NLRI
+
+from ryu.services.protocols.bgp.info_base.vpnv4fs import VPNv4FlowSpecPath
+from ryu.services.protocols.bgp.info_base.vrffs import VRFFlowSpecDest
+from ryu.services.protocols.bgp.info_base.vrffs import VRFFlowSpecPath
+from ryu.services.protocols.bgp.info_base.vrffs import VRFFlowSpecTable
+
+LOG = logging.getLogger('bgpspeaker.info_base.vrf4fs')
+
+
+class Vrf4FlowSpecPath(VRFFlowSpecPath):
+ """Represents a way of reaching an IP destination with
+ a VPN Flow Specification.
+ """
+ ROUTE_FAMILY = RF_IPv4_FLOWSPEC
+ VPN_PATH_CLASS = VPNv4FlowSpecPath
+ VPN_NLRI_CLASS = FlowSpecVPNv4NLRI
+
+
+class Vrf4FlowSpecDest(VRFFlowSpecDest):
+ ROUTE_FAMILY = RF_IPv4_FLOWSPEC
+
+
+class Vrf4FlowSpecTable(VRFFlowSpecTable):
+ """Virtual Routing and Forwarding information base
+ for IPv4 Flow Specification.
+ """
+ ROUTE_FAMILY = RF_IPv4_FLOWSPEC
+ VPN_ROUTE_FAMILY = RF_VPNv4_FLOWSPEC
+ NLRI_CLASS = FlowSpecIPv4NLRI
+ VRF_PATH_CLASS = Vrf4FlowSpecPath
+ VRF_DEST_CLASS = Vrf4FlowSpecDest