planetstack/neutron_extension/1:2013.2.2-0ubuntu1~cloud0/ovs_models_v2.py

   1 # vim: tabstop=4 shiftwidth=4 softtabstop=4
   2 # Copyright 2011 Nicira Networks, Inc.
   3 # All Rights Reserved.
   4 #
   5 #    Licensed under the Apache License, Version 2.0 (the "License"); you may
   6 #    not use this file except in compliance with the License. You may obtain
   7 #    a copy of the License at
   8 #
   9 #         http://www.apache.org/licenses/LICENSE-2.0
  10 #
  11 #    Unless required by applicable law or agreed to in writing, software
  12 #    distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
  13 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
  14 #    License for the specific language governing permissions and limitations
  15 #    under the License.
  16 # @author: Aaron Rosen, Nicira Networks, Inc.
  17 # @author: Bob Kukura, Red Hat, Inc.
  18
  19
  20 from sqlalchemy import Boolean, Column, ForeignKey, Integer, String, PickleType
  21 from sqlalchemy.schema import UniqueConstraint
  22
  23 from neutron.db.models_v2 import model_base
  24
  25
  26 class VlanAllocation(model_base.BASEV2):
  27     """Represents allocation state of vlan_id on physical network."""
  28     __tablename__ = 'ovs_vlan_allocations'
  29
  30     physical_network = Column(String(64), nullable=False, primary_key=True)
  31     vlan_id = Column(Integer, nullable=False, primary_key=True,
  32                      autoincrement=False)
  33     allocated = Column(Boolean, nullable=False)
  34
  35     def __init__(self, physical_network, vlan_id):
  36         self.physical_network = physical_network
  37         self.vlan_id = vlan_id
  38         self.allocated = False
  39
  40     def __repr__(self):
  41         return "<VlanAllocation(%s,%d,%s)>" % (self.physical_network,
  42                                                self.vlan_id, self.allocated)
  43
  44
  45 class TunnelAllocation(model_base.BASEV2):
  46     """Represents allocation state of tunnel_id."""
  47     __tablename__ = 'ovs_tunnel_allocations'
  48
  49     tunnel_id = Column(Integer, nullable=False, primary_key=True,
  50                        autoincrement=False)
  51     allocated = Column(Boolean, nullable=False)
  52
  53     def __init__(self, tunnel_id):
  54         self.tunnel_id = tunnel_id
  55         self.allocated = False
  56
  57     def __repr__(self):
  58         return "<TunnelAllocation(%d,%s)>" % (self.tunnel_id, self.allocated)
  59
  60
  61 class NetworkBinding(model_base.BASEV2):
  62     """Represents binding of virtual network to physical realization."""
  63     __tablename__ = 'ovs_network_bindings'
  64
  65     network_id = Column(String(36),
  66                         ForeignKey('networks.id', ondelete="CASCADE"),
  67                         primary_key=True)
  68     # 'gre', 'vlan', 'flat', 'local'
  69     network_type = Column(String(32), nullable=False)
  70     physical_network = Column(String(64))
  71     segmentation_id = Column(Integer)  # tunnel_id or vlan_id
  72
  73     def __init__(self, network_id, network_type, physical_network,
  74                  segmentation_id):
  75         self.network_id = network_id
  76         self.network_type = network_type
  77         self.physical_network = physical_network
  78         self.segmentation_id = segmentation_id
  79
  80     def __repr__(self):
  81         return "<NetworkBinding(%s,%s,%s,%d)>" % (self.network_id,
  82                                                   self.network_type,
  83                                                   self.physical_network,
  84                                                   self.segmentation_id)
  85
  86 class PortForwarding(model_base.BASEV2):
  87     """Ports to be forwarded through NAT """
  88     __tablename__ = 'ovs_port_forwarding'
  89
  90     port_id = Column(String(36),
  91                      ForeignKey('ports.id', ondelete="CASCADE"),
  92                      primary_key=True)
  93     forward_ports = Column(PickleType)
  94
  95     def __init__(self, port_id, forward_ports):
  96         self.port_id = port_id
  97         self.forward_ports = forward_ports
  98
  99     def __repr__(self):
 100         return "<PortForwarding(%s,%s)>" % (self.port_id, self.forward_ports)
 101
 102 class TunnelEndpoint(model_base.BASEV2):
 103     """Represents tunnel endpoint in RPC mode."""
 104     __tablename__ = 'ovs_tunnel_endpoints'
 105     __table_args__ = (
 106         UniqueConstraint('id', name='uniq_ovs_tunnel_endpoints0id'),
 107     )
 108
 109     ip_address = Column(String(64), primary_key=True)
 110     id = Column(Integer, nullable=False)
 111
 112     def __init__(self, ip_address, id):
 113         self.ip_address = ip_address
 114         self.id = id
 115
 116     def __repr__(self):
 117         return "<TunnelEndpoint(%s,%s)>" % (self.ip_address, self.id)
 118