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# Copyright (C) 2014,2015 VA Linux Systems Japan K.K. 

# Copyright (C) 2014,2015 YAMAMOTO Takashi <yamamoto at valinux co jp> 

# 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.plugins.ml2.drivers.openvswitch.agent.common import constants 

from neutron.plugins.ml2.drivers.openvswitch.agent.openflow.ovs_ofctl \ 

    import br_dvr_process 

from neutron.plugins.ml2.drivers.openvswitch.agent.openflow.ovs_ofctl \ 

    import ovs_bridge 

 

 

class OVSPhysicalBridge(ovs_bridge.OVSAgentBridge, 

                        br_dvr_process.OVSDVRProcessMixin): 

    """openvswitch agent physical bridge specific logic.""" 

 

    # Used by OVSDVRProcessMixin 

    dvr_process_table_id = constants.DVR_PROCESS_VLAN 

    dvr_process_next_table_id = constants.LOCAL_VLAN_TRANSLATION 

 

    def setup_default_table(self): 

        self.delete_flows() 

        self.install_normal() 

 

    def provision_local_vlan(self, port, lvid, segmentation_id, distributed): 

        table_id = constants.LOCAL_VLAN_TRANSLATION if distributed else 0 

        if segmentation_id is None: 

            self.add_flow(table=table_id, 

                          priority=4, 

                          in_port=port, 

                          dl_vlan=lvid, 

                          actions="strip_vlan,normal") 

        else: 

            self.add_flow(table=table_id, 

                          priority=4, 

                          in_port=port, 

                          dl_vlan=lvid, 

                          actions="mod_vlan_vid:%s,normal" % segmentation_id) 

 

    def reclaim_local_vlan(self, port, lvid): 

        self.delete_flows(in_port=port, dl_vlan=lvid) 

 

    def add_dvr_mac_vlan(self, mac, port): 

        self.install_output(table_id=constants.DVR_NOT_LEARN_VLAN, 

            priority=2, eth_src=mac, port=port) 

 

    def remove_dvr_mac_vlan(self, mac): 

        # REVISIT(yamamoto): match in_port as well? 

        self.delete_flows(table_id=constants.DVR_NOT_LEARN_VLAN, 

            eth_src=mac)