317 lines
12 KiB
Python
317 lines
12 KiB
Python
# Copyright 2015 VMware, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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"""
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NSX data models.
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This module defines data models used by the VMware NSX plugin family.
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"""
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import sqlalchemy as sa
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from sqlalchemy import orm
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from sqlalchemy import sql
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from neutron.db import model_base
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from neutron.db import models_v2
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class TzNetworkBinding(model_base.BASEV2):
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"""Represents a binding of a virtual network with a transport zone.
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This model class associates a Neutron network with a transport zone;
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optionally a vlan ID might be used if the binding type is 'bridge'
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"""
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__tablename__ = 'tz_network_bindings'
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# TODO(arosen) - it might be worth while refactoring the how this data
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# is stored later so every column does not need to be a primary key.
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network_id = sa.Column(sa.String(36),
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sa.ForeignKey('networks.id', ondelete="CASCADE"),
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primary_key=True)
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# 'flat', 'vlan', stt' or 'gre'
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binding_type = sa.Column(sa.Enum('flat', 'vlan', 'stt', 'gre', 'l3_ext',
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name='tz_network_bindings_binding_type'),
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nullable=False, primary_key=True)
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phy_uuid = sa.Column(sa.String(36), primary_key=True, default='')
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vlan_id = sa.Column(sa.Integer, primary_key=True,
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autoincrement=False, default=0)
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def __init__(self, network_id, binding_type, phy_uuid, vlan_id):
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self.network_id = network_id
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self.binding_type = binding_type
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self.phy_uuid = phy_uuid
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self.vlan_id = vlan_id
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def __repr__(self):
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return "<NetworkBinding(%s,%s,%s,%s)>" % (self.network_id,
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self.binding_type,
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self.phy_uuid,
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self.vlan_id)
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class NeutronNsxNetworkMapping(model_base.BASEV2):
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"""Maps neutron network identifiers to NSX identifiers.
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Because of chained logical switches more than one mapping might exist
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for a single Neutron network.
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"""
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__tablename__ = 'neutron_nsx_network_mappings'
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neutron_id = sa.Column(sa.String(36),
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sa.ForeignKey('networks.id', ondelete='CASCADE'),
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primary_key=True)
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nsx_id = sa.Column(sa.String(36), primary_key=True)
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class NeutronNsxSecurityGroupMapping(model_base.BASEV2):
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"""Backend mappings for Neutron Security Group identifiers.
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This class maps a neutron security group identifier to the corresponding
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NSX security profile identifier.
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"""
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__tablename__ = 'neutron_nsx_security_group_mappings'
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neutron_id = sa.Column(sa.String(36),
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sa.ForeignKey('securitygroups.id',
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ondelete="CASCADE"),
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primary_key=True)
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nsx_id = sa.Column(sa.String(36), primary_key=True)
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class NeutronNsxFirewallSectionMapping(model_base.BASEV2):
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"""Backend mappings for Neutron Security-group associated fw sections."""
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__tablename__ = 'neutron_nsx_firewall_section_mappings'
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neutron_id = sa.Column(sa.String(36),
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sa.ForeignKey('securitygroups.id',
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ondelete='CASCADE'),
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primary_key=True,
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nullable=False)
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nsx_id = sa.Column(sa.String(36), nullable=False)
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class NeutronNsxRuleMapping(model_base.BASEV2):
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"""Backend mappings for firewall rules.
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This class maps a neutron security group rule with NSX firewall rule.
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"""
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__tablename__ = 'neutron_nsx_rule_mappings'
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neutron_id = sa.Column(sa.String(36),
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sa.ForeignKey('securitygrouprules.id',
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ondelete="CASCADE"),
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primary_key=True,
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nullable=False)
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nsx_id = sa.Column(sa.String(36), nullable=False)
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class NeutronNsxPortMapping(model_base.BASEV2):
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"""Represents the mapping between neutron and nsx port uuids."""
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__tablename__ = 'neutron_nsx_port_mappings'
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neutron_id = sa.Column(sa.String(36),
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sa.ForeignKey('ports.id', ondelete="CASCADE"),
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primary_key=True)
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nsx_switch_id = sa.Column(sa.String(36))
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nsx_port_id = sa.Column(sa.String(36), nullable=False)
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def __init__(self, neutron_id, nsx_switch_id, nsx_port_id):
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self.neutron_id = neutron_id
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self.nsx_switch_id = nsx_switch_id
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self.nsx_port_id = nsx_port_id
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class NeutronNsxRouterMapping(model_base.BASEV2):
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"""Maps neutron router identifiers to NSX identifiers."""
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__tablename__ = 'neutron_nsx_router_mappings'
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neutron_id = sa.Column(sa.String(36),
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sa.ForeignKey('routers.id', ondelete='CASCADE'),
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primary_key=True)
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nsx_id = sa.Column(sa.String(36))
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class MultiProviderNetworks(model_base.BASEV2):
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"""Networks provisioned through multiprovider extension."""
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__tablename__ = 'multi_provider_networks'
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network_id = sa.Column(sa.String(36),
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sa.ForeignKey('networks.id', ondelete="CASCADE"),
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primary_key=True)
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def __init__(self, network_id):
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self.network_id = network_id
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class NetworkConnection(model_base.BASEV2, models_v2.HasTenant):
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"""Defines a connection between a network gateway and a network."""
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# We use port_id as the primary key as one can connect a gateway
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# to a network in multiple ways (and we cannot use the same port form
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# more than a single gateway)
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network_gateway_id = sa.Column(sa.String(36),
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sa.ForeignKey('networkgateways.id',
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ondelete='CASCADE'))
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network_id = sa.Column(sa.String(36),
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sa.ForeignKey('networks.id', ondelete='CASCADE'))
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segmentation_type = sa.Column(
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sa.Enum('flat', 'vlan',
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name='networkconnections_segmentation_type'))
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segmentation_id = sa.Column(sa.Integer)
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__table_args__ = (sa.UniqueConstraint(network_gateway_id,
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segmentation_type,
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segmentation_id),
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model_base.BASEV2.__table_args__)
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# Also, storing port id comes back useful when disconnecting a network
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# from a gateway
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port_id = sa.Column(sa.String(36),
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sa.ForeignKey('ports.id', ondelete='CASCADE'),
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primary_key=True)
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class NetworkGatewayDeviceReference(model_base.BASEV2):
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id = sa.Column(sa.String(36), primary_key=True)
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network_gateway_id = sa.Column(sa.String(36),
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sa.ForeignKey('networkgateways.id',
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ondelete='CASCADE'),
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primary_key=True)
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interface_name = sa.Column(sa.String(64), primary_key=True)
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class NetworkGatewayDevice(model_base.BASEV2, models_v2.HasId,
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models_v2.HasTenant):
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nsx_id = sa.Column(sa.String(36))
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# Optional name for the gateway device
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name = sa.Column(sa.String(255))
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# Transport connector type. Not using enum as range of
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# connector types might vary with backend version
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connector_type = sa.Column(sa.String(10))
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# Transport connector IP Address
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connector_ip = sa.Column(sa.String(64))
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# operational status
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status = sa.Column(sa.String(16))
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class NetworkGateway(model_base.BASEV2, models_v2.HasId,
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models_v2.HasTenant):
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"""Defines the data model for a network gateway."""
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name = sa.Column(sa.String(255))
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# Tenant id is nullable for this resource
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tenant_id = sa.Column(sa.String(36))
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default = sa.Column(sa.Boolean())
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devices = orm.relationship(NetworkGatewayDeviceReference,
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backref='networkgateways',
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cascade='all,delete')
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network_connections = orm.relationship(NetworkConnection, lazy='joined')
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class MacLearningState(model_base.BASEV2):
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port_id = sa.Column(sa.String(36),
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sa.ForeignKey('ports.id', ondelete="CASCADE"),
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primary_key=True)
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mac_learning_enabled = sa.Column(sa.Boolean(), nullable=False)
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# Add a relationship to the Port model using the backref attribute.
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# This will instruct SQLAlchemy to eagerly load this association.
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port = orm.relationship(
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models_v2.Port,
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backref=orm.backref("mac_learning_state", lazy='joined',
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uselist=False, cascade='delete'))
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class LsnPort(models_v2.model_base.BASEV2):
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__tablename__ = 'lsn_port'
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lsn_port_id = sa.Column(sa.String(36), primary_key=True)
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lsn_id = sa.Column(sa.String(36),
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sa.ForeignKey('lsn.lsn_id', ondelete="CASCADE"),
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nullable=False)
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sub_id = sa.Column(sa.String(36), nullable=False, unique=True)
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mac_addr = sa.Column(sa.String(32), nullable=False, unique=True)
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def __init__(self, lsn_port_id, subnet_id, mac_address, lsn_id):
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self.lsn_port_id = lsn_port_id
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self.lsn_id = lsn_id
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self.sub_id = subnet_id
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self.mac_addr = mac_address
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class Lsn(models_v2.model_base.BASEV2):
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__tablename__ = 'lsn'
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lsn_id = sa.Column(sa.String(36), primary_key=True)
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net_id = sa.Column(sa.String(36), nullable=False)
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def __init__(self, net_id, lsn_id):
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self.net_id = net_id
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self.lsn_id = lsn_id
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class QoSQueue(model_base.BASEV2, models_v2.HasId, models_v2.HasTenant):
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name = sa.Column(sa.String(255))
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default = sa.Column(sa.Boolean, default=False, server_default=sql.false())
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min = sa.Column(sa.Integer, nullable=False)
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max = sa.Column(sa.Integer, nullable=True)
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qos_marking = sa.Column(sa.Enum('untrusted', 'trusted',
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name='qosqueues_qos_marking'))
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dscp = sa.Column(sa.Integer)
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class PortQueueMapping(model_base.BASEV2):
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port_id = sa.Column(sa.String(36),
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sa.ForeignKey("ports.id", ondelete="CASCADE"),
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primary_key=True)
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queue_id = sa.Column(sa.String(36), sa.ForeignKey("qosqueues.id"),
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primary_key=True)
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# Add a relationship to the Port model adding a backref which will
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# allow SQLAlchemy for eagerly load the queue binding
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port = orm.relationship(
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models_v2.Port,
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backref=orm.backref("qos_queue", uselist=False,
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cascade='delete', lazy='joined'))
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class NetworkQueueMapping(model_base.BASEV2):
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network_id = sa.Column(sa.String(36),
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sa.ForeignKey("networks.id", ondelete="CASCADE"),
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primary_key=True)
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queue_id = sa.Column(sa.String(36), sa.ForeignKey("qosqueues.id",
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ondelete="CASCADE"))
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# Add a relationship to the Network model adding a backref which will
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# allow SQLAlcremy for eagerly load the queue binding
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network = orm.relationship(
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models_v2.Network,
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backref=orm.backref("qos_queue", uselist=False,
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cascade='delete', lazy='joined'))
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class NsxL2GWConnectionMapping(model_base.BASEV2):
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"""Define a mapping between L2 gateway connection and bridge endpoint."""
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__tablename__ = 'nsx_l2gw_connection_mappings'
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connection_id = sa.Column(sa.String(36),
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sa.ForeignKey("l2gatewayconnections.id",
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ondelete="CASCADE"),
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nullable=False,
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primary_key=True)
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port_id = sa.Column(sa.String(36),
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sa.ForeignKey("ports.id", ondelete="CASCADE"),
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nullable=False)
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bridge_endpoint_id = sa.Column(sa.String(36), nullable=False)
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