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vpn_models.py
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vpn_models.py
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# (c) Copyright 2013 Hewlett-Packard Development Company, L.P.
# 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_lib.db import constants as db_const
from neutron_lib.db import model_base
import sqlalchemy as sa
from sqlalchemy import orm
from neutron.db.models import l3
from neutron.db import models_v2
from neutron_vpnaas.services.vpn.common import constants
class IPsecPeerCidr(model_base.BASEV2):
"""Internal representation of a IPsec Peer Cidrs."""
cidr = sa.Column(sa.String(32), nullable=False, primary_key=True)
ipsec_site_connection_id = sa.Column(
sa.String(36),
sa.ForeignKey('ipsec_site_connections.id',
ondelete="CASCADE"),
primary_key=True)
class IPsecPolicy(model_base.BASEV2, model_base.HasId, model_base.HasProject):
"""Represents a v2 IPsecPolicy Object."""
__tablename__ = 'ipsecpolicies'
name = sa.Column(sa.String(db_const.NAME_FIELD_SIZE))
description = sa.Column(sa.String(db_const.DESCRIPTION_FIELD_SIZE))
transform_protocol = sa.Column(sa.Enum("esp", "ah", "ah-esp",
name="ipsec_transform_protocols"),
nullable=False)
auth_algorithm = sa.Column(sa.Enum("sha1", "sha256",
"sha384", "sha512",
name="vpn_auth_algorithms"),
nullable=False)
encryption_algorithm = sa.Column(sa.Enum("3des", "aes-128",
"aes-256", "aes-192",
name="vpn_encrypt_algorithms"),
nullable=False)
encapsulation_mode = sa.Column(sa.Enum("tunnel", "transport",
name="ipsec_encapsulations"),
nullable=False)
lifetime_units = sa.Column(sa.Enum("seconds", "kilobytes",
name="vpn_lifetime_units"),
nullable=False)
lifetime_value = sa.Column(sa.Integer, nullable=False)
pfs = sa.Column(sa.Enum("group2", "group5", "group14",
name="vpn_pfs"), nullable=False)
class IKEPolicy(model_base.BASEV2, model_base.HasId, model_base.HasProject):
"""Represents a v2 IKEPolicy Object."""
__tablename__ = 'ikepolicies'
name = sa.Column(sa.String(db_const.NAME_FIELD_SIZE))
description = sa.Column(sa.String(db_const.DESCRIPTION_FIELD_SIZE))
auth_algorithm = sa.Column(sa.Enum("sha1", "sha256",
"sha384", "sha512",
name="vpn_auth_algorithms"),
nullable=False)
encryption_algorithm = sa.Column(sa.Enum("3des", "aes-128",
"aes-256", "aes-192",
name="vpn_encrypt_algorithms"),
nullable=False)
phase1_negotiation_mode = sa.Column(sa.Enum("main", 'aggressive',
name="ike_phase1_mode"),
nullable=False)
lifetime_units = sa.Column(sa.Enum("seconds", "kilobytes",
name="vpn_lifetime_units"),
nullable=False)
lifetime_value = sa.Column(sa.Integer, nullable=False)
ike_version = sa.Column(sa.Enum("v1", "v2", name="ike_versions"),
nullable=False)
pfs = sa.Column(sa.Enum("group2", "group5", "group14",
name="vpn_pfs"), nullable=False)
class IPsecSiteConnection(model_base.BASEV2, model_base.HasId,
model_base.HasProject):
"""Represents a IPsecSiteConnection Object."""
__tablename__ = 'ipsec_site_connections'
name = sa.Column(sa.String(db_const.NAME_FIELD_SIZE))
description = sa.Column(sa.String(db_const.DESCRIPTION_FIELD_SIZE))
peer_address = sa.Column(sa.String(255), nullable=False)
peer_id = sa.Column(sa.String(255), nullable=False)
local_id = sa.Column(sa.String(255), nullable=True)
route_mode = sa.Column(sa.String(8), nullable=False)
mtu = sa.Column(sa.Integer, nullable=False)
initiator = sa.Column(sa.Enum("bi-directional", "response-only",
name="vpn_initiators"), nullable=False)
auth_mode = sa.Column(sa.String(16), nullable=False)
psk = sa.Column(sa.String(255), nullable=False)
dpd_action = sa.Column(sa.Enum("hold", "clear",
"restart", "disabled",
"restart-by-peer", name="vpn_dpd_actions"),
nullable=False)
dpd_interval = sa.Column(sa.Integer, nullable=False)
dpd_timeout = sa.Column(sa.Integer, nullable=False)
status = sa.Column(sa.String(16), nullable=False)
admin_state_up = sa.Column(sa.Boolean(), nullable=False)
vpnservice_id = sa.Column(sa.String(36),
sa.ForeignKey('vpnservices.id'),
nullable=False)
ipsecpolicy_id = sa.Column(sa.String(36),
sa.ForeignKey('ipsecpolicies.id'),
nullable=False)
ikepolicy_id = sa.Column(sa.String(36),
sa.ForeignKey('ikepolicies.id'),
nullable=False)
ipsecpolicy = orm.relationship(
IPsecPolicy, backref='ipsec_site_connection')
ikepolicy = orm.relationship(IKEPolicy, backref='ipsec_site_connection')
peer_cidrs = orm.relationship(IPsecPeerCidr,
backref='ipsec_site_connection',
lazy='joined',
cascade='all, delete, delete-orphan')
local_ep_group_id = sa.Column(sa.String(36),
sa.ForeignKey('vpn_endpoint_groups.id'))
peer_ep_group_id = sa.Column(sa.String(36),
sa.ForeignKey('vpn_endpoint_groups.id'))
local_ep_group = orm.relationship("VPNEndpointGroup",
foreign_keys=local_ep_group_id)
peer_ep_group = orm.relationship("VPNEndpointGroup",
foreign_keys=peer_ep_group_id)
class VPNService(model_base.BASEV2, model_base.HasId, model_base.HasProject):
"""Represents a v2 VPNService Object."""
name = sa.Column(sa.String(db_const.NAME_FIELD_SIZE))
description = sa.Column(sa.String(db_const.DESCRIPTION_FIELD_SIZE))
status = sa.Column(sa.String(16), nullable=False)
admin_state_up = sa.Column(sa.Boolean(), nullable=False)
external_v4_ip = sa.Column(sa.String(16))
external_v6_ip = sa.Column(sa.String(64))
subnet_id = sa.Column(sa.String(36), sa.ForeignKey('subnets.id'))
router_id = sa.Column(sa.String(36), sa.ForeignKey('routers.id'),
nullable=False)
subnet = orm.relationship(models_v2.Subnet)
router = orm.relationship(l3.Router)
ipsec_site_connections = orm.relationship(
IPsecSiteConnection,
backref='vpnservice',
cascade="all, delete-orphan")
flavor_id = sa.Column(sa.String(36), sa.ForeignKey(
'flavors.id', name='fk_vpnservices_flavors_id'))
class VPNEndpoint(model_base.BASEV2):
"""Endpoints used in VPN connections.
All endpoints in a group must be of the same type. Note: the endpoint
is an 'opaque' field used to hold different endpoint types, and be
flexible enough to use for future types.
"""
__tablename__ = 'vpn_endpoints'
endpoint = sa.Column(sa.String(255), nullable=False, primary_key=True)
endpoint_group_id = sa.Column(sa.String(36),
sa.ForeignKey('vpn_endpoint_groups.id',
ondelete="CASCADE"),
primary_key=True)
class VPNEndpointGroup(model_base.BASEV2, model_base.HasId,
model_base.HasProject):
"""Collection of endpoints of a specific type, for VPN connections."""
__tablename__ = 'vpn_endpoint_groups'
name = sa.Column(sa.String(db_const.NAME_FIELD_SIZE))
description = sa.Column(sa.String(db_const.DESCRIPTION_FIELD_SIZE))
endpoint_type = sa.Column(sa.Enum(*constants.VPN_SUPPORTED_ENDPOINT_TYPES,
name="endpoint_type"),
nullable=False)
endpoints = orm.relationship(VPNEndpoint,
backref='endpoint_group',
lazy='joined',
cascade='all, delete, delete-orphan')