neutron-vpnaas/neutron_vpnaas/db/vpn/vpn_db.py

685 lines
32 KiB
Python

# (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.
import netaddr
from neutron.callbacks import events
from neutron.callbacks import registry
from neutron.callbacks import resources
from neutron.common import constants as n_constants
from neutron.db import common_db_mixin as base_db
from neutron.db import l3_agentschedulers_db as l3_agent_db
from neutron.extensions import l3 as l3_exception
from neutron.i18n import _LW
from neutron import manager
from neutron.plugins.common import constants
from neutron.plugins.common import utils
from oslo_log import log as logging
from oslo_utils import excutils
from oslo_utils import uuidutils
from sqlalchemy.orm import exc
from neutron_vpnaas.db.vpn import vpn_models
from neutron_vpnaas.db.vpn import vpn_validator
from neutron_vpnaas.extensions import vpnaas
LOG = logging.getLogger(__name__)
class VPNPluginDb(vpnaas.VPNPluginBase, base_db.CommonDbMixin):
"""VPN plugin database class using SQLAlchemy models."""
def _get_validator(self):
"""Obtain validator to use for attribute validation.
Subclasses may override this with a different valdiator, as needed.
Note: some UTs will directly create a VPNPluginDb object and then
call its methods, instead of creating a VPNDriverPlugin, which
will have a service driver associated that will provide a
validator object. As a result, we use the reference validator here.
"""
return vpn_validator.VpnReferenceValidator()
def update_status(self, context, model, v_id, status):
with context.session.begin(subtransactions=True):
v_db = self._get_resource(context, model, v_id)
v_db.update({'status': status})
def _get_resource(self, context, model, v_id):
try:
r = self._get_by_id(context, model, v_id)
except exc.NoResultFound:
with excutils.save_and_reraise_exception(reraise=False) as ctx:
if issubclass(model, vpn_models.IPsecSiteConnection):
raise vpnaas.IPsecSiteConnectionNotFound(
ipsec_site_conn_id=v_id
)
elif issubclass(model, vpn_models.IKEPolicy):
raise vpnaas.IKEPolicyNotFound(ikepolicy_id=v_id)
elif issubclass(model, vpn_models.IPsecPolicy):
raise vpnaas.IPsecPolicyNotFound(ipsecpolicy_id=v_id)
elif issubclass(model, vpn_models.VPNService):
raise vpnaas.VPNServiceNotFound(vpnservice_id=v_id)
elif issubclass(model, vpn_models.VPNEndpointGroup):
raise vpnaas.VPNEndpointGroupNotFound(
endpoint_group_id=v_id)
ctx.reraise = True
return r
def assert_update_allowed(self, obj):
status = getattr(obj, 'status', None)
_id = getattr(obj, 'id', None)
if utils.in_pending_status(status):
raise vpnaas.VPNStateInvalidToUpdate(id=_id, state=status)
def _make_ipsec_site_connection_dict(self, ipsec_site_conn, fields=None):
res = {'id': ipsec_site_conn['id'],
'tenant_id': ipsec_site_conn['tenant_id'],
'name': ipsec_site_conn['name'],
'description': ipsec_site_conn['description'],
'peer_address': ipsec_site_conn['peer_address'],
'peer_id': ipsec_site_conn['peer_id'],
'route_mode': ipsec_site_conn['route_mode'],
'mtu': ipsec_site_conn['mtu'],
'auth_mode': ipsec_site_conn['auth_mode'],
'psk': ipsec_site_conn['psk'],
'initiator': ipsec_site_conn['initiator'],
'dpd': {
'action': ipsec_site_conn['dpd_action'],
'interval': ipsec_site_conn['dpd_interval'],
'timeout': ipsec_site_conn['dpd_timeout']
},
'admin_state_up': ipsec_site_conn['admin_state_up'],
'status': ipsec_site_conn['status'],
'vpnservice_id': ipsec_site_conn['vpnservice_id'],
'ikepolicy_id': ipsec_site_conn['ikepolicy_id'],
'ipsecpolicy_id': ipsec_site_conn['ipsecpolicy_id'],
'peer_cidrs': [pcidr['cidr']
for pcidr in ipsec_site_conn['peer_cidrs']]
}
return self._fields(res, fields)
def _get_subnet_ip_version(self, context, vpnservice_id):
vpn_service_db = self._get_vpnservice(context, vpnservice_id)
subnet = vpn_service_db.subnet['cidr']
ip_version = netaddr.IPNetwork(subnet).version
return ip_version
def create_ipsec_site_connection(self, context, ipsec_site_connection):
ipsec_sitecon = ipsec_site_connection['ipsec_site_connection']
validator = self._get_validator()
validator.assign_sensible_ipsec_sitecon_defaults(ipsec_sitecon)
tenant_id = self._get_tenant_id_for_create(context, ipsec_sitecon)
with context.session.begin(subtransactions=True):
#Check permissions
self._get_resource(context, vpn_models.VPNService,
ipsec_sitecon['vpnservice_id'])
self._get_resource(context, vpn_models.IKEPolicy,
ipsec_sitecon['ikepolicy_id'])
self._get_resource(context, vpn_models.IPsecPolicy,
ipsec_sitecon['ipsecpolicy_id'])
vpnservice_id = ipsec_sitecon['vpnservice_id']
ip_version = self._get_subnet_ip_version(context, vpnservice_id)
validator.validate_ipsec_site_connection(context,
ipsec_sitecon,
ip_version)
vpnservice = self._get_vpnservice(context, vpnservice_id)
validator.resolve_peer_address(ipsec_sitecon, vpnservice.router)
ipsec_site_conn_db = vpn_models.IPsecSiteConnection(
id=uuidutils.generate_uuid(),
tenant_id=tenant_id,
name=ipsec_sitecon['name'],
description=ipsec_sitecon['description'],
peer_address=ipsec_sitecon['peer_address'],
peer_id=ipsec_sitecon['peer_id'],
route_mode='static',
mtu=ipsec_sitecon['mtu'],
auth_mode='psk',
psk=ipsec_sitecon['psk'],
initiator=ipsec_sitecon['initiator'],
dpd_action=ipsec_sitecon['dpd_action'],
dpd_interval=ipsec_sitecon['dpd_interval'],
dpd_timeout=ipsec_sitecon['dpd_timeout'],
admin_state_up=ipsec_sitecon['admin_state_up'],
status=constants.PENDING_CREATE,
vpnservice_id=vpnservice_id,
ikepolicy_id=ipsec_sitecon['ikepolicy_id'],
ipsecpolicy_id=ipsec_sitecon['ipsecpolicy_id']
)
context.session.add(ipsec_site_conn_db)
for cidr in ipsec_sitecon['peer_cidrs']:
peer_cidr_db = vpn_models.IPsecPeerCidr(
cidr=cidr,
ipsec_site_connection_id=ipsec_site_conn_db['id']
)
context.session.add(peer_cidr_db)
return self._make_ipsec_site_connection_dict(ipsec_site_conn_db)
def update_ipsec_site_connection(
self, context,
ipsec_site_conn_id, ipsec_site_connection):
ipsec_sitecon = ipsec_site_connection['ipsec_site_connection']
changed_peer_cidrs = False
validator = self._get_validator()
with context.session.begin(subtransactions=True):
ipsec_site_conn_db = self._get_resource(
context, vpn_models.IPsecSiteConnection, ipsec_site_conn_id)
vpnservice_id = ipsec_site_conn_db['vpnservice_id']
ip_version = self._get_subnet_ip_version(context, vpnservice_id)
validator.assign_sensible_ipsec_sitecon_defaults(
ipsec_sitecon, ipsec_site_conn_db)
validator.validate_ipsec_site_connection(
context,
ipsec_sitecon,
ip_version)
if 'peer_address' in ipsec_sitecon:
vpnservice = self._get_vpnservice(context, vpnservice_id)
validator.resolve_peer_address(ipsec_sitecon,
vpnservice.router)
self.assert_update_allowed(ipsec_site_conn_db)
if "peer_cidrs" in ipsec_sitecon:
changed_peer_cidrs = True
old_peer_cidr_list = ipsec_site_conn_db['peer_cidrs']
old_peer_cidr_dict = dict(
(peer_cidr['cidr'], peer_cidr)
for peer_cidr in old_peer_cidr_list)
new_peer_cidr_set = set(ipsec_sitecon["peer_cidrs"])
old_peer_cidr_set = set(old_peer_cidr_dict)
new_peer_cidrs = list(new_peer_cidr_set)
for peer_cidr in old_peer_cidr_set - new_peer_cidr_set:
context.session.delete(old_peer_cidr_dict[peer_cidr])
for peer_cidr in new_peer_cidr_set - old_peer_cidr_set:
pcidr = vpn_models.IPsecPeerCidr(
cidr=peer_cidr,
ipsec_site_connection_id=ipsec_site_conn_id)
context.session.add(pcidr)
del ipsec_sitecon["peer_cidrs"]
if ipsec_sitecon:
ipsec_site_conn_db.update(ipsec_sitecon)
result = self._make_ipsec_site_connection_dict(ipsec_site_conn_db)
if changed_peer_cidrs:
result['peer_cidrs'] = new_peer_cidrs
return result
def delete_ipsec_site_connection(self, context, ipsec_site_conn_id):
with context.session.begin(subtransactions=True):
ipsec_site_conn_db = self._get_resource(
context, vpn_models.IPsecSiteConnection, ipsec_site_conn_id)
context.session.delete(ipsec_site_conn_db)
def _get_ipsec_site_connection(
self, context, ipsec_site_conn_id):
return self._get_resource(
context, vpn_models.IPsecSiteConnection, ipsec_site_conn_id)
def get_ipsec_site_connection(self, context,
ipsec_site_conn_id, fields=None):
ipsec_site_conn_db = self._get_ipsec_site_connection(
context, ipsec_site_conn_id)
return self._make_ipsec_site_connection_dict(
ipsec_site_conn_db, fields)
def get_ipsec_site_connections(self, context, filters=None, fields=None):
return self._get_collection(context, vpn_models.IPsecSiteConnection,
self._make_ipsec_site_connection_dict,
filters=filters, fields=fields)
def update_ipsec_site_conn_status(self, context, conn_id, new_status):
with context.session.begin():
self._update_connection_status(context, conn_id, new_status, True)
def _update_connection_status(self, context, conn_id, new_status,
updated_pending):
"""Update the connection status, if changed.
If the connection is not in a pending state, unconditionally update
the status. Likewise, if in a pending state, and have an indication
that the status has changed, then update the database.
"""
try:
conn_db = self._get_ipsec_site_connection(context, conn_id)
except vpnaas.IPsecSiteConnectionNotFound:
return
if not utils.in_pending_status(conn_db.status) or updated_pending:
conn_db.status = new_status
def _make_ikepolicy_dict(self, ikepolicy, fields=None):
res = {'id': ikepolicy['id'],
'tenant_id': ikepolicy['tenant_id'],
'name': ikepolicy['name'],
'description': ikepolicy['description'],
'auth_algorithm': ikepolicy['auth_algorithm'],
'encryption_algorithm': ikepolicy['encryption_algorithm'],
'phase1_negotiation_mode': ikepolicy['phase1_negotiation_mode'],
'lifetime': {
'units': ikepolicy['lifetime_units'],
'value': ikepolicy['lifetime_value'],
},
'ike_version': ikepolicy['ike_version'],
'pfs': ikepolicy['pfs']
}
return self._fields(res, fields)
def create_ikepolicy(self, context, ikepolicy):
ike = ikepolicy['ikepolicy']
tenant_id = self._get_tenant_id_for_create(context, ike)
lifetime_info = ike.get('lifetime', [])
lifetime_units = lifetime_info.get('units', 'seconds')
lifetime_value = lifetime_info.get('value', 3600)
with context.session.begin(subtransactions=True):
ike_db = vpn_models.IKEPolicy(
id=uuidutils.generate_uuid(),
tenant_id=tenant_id,
name=ike['name'],
description=ike['description'],
auth_algorithm=ike['auth_algorithm'],
encryption_algorithm=ike['encryption_algorithm'],
phase1_negotiation_mode=ike['phase1_negotiation_mode'],
lifetime_units=lifetime_units,
lifetime_value=lifetime_value,
ike_version=ike['ike_version'],
pfs=ike['pfs']
)
context.session.add(ike_db)
return self._make_ikepolicy_dict(ike_db)
def update_ikepolicy(self, context, ikepolicy_id, ikepolicy):
ike = ikepolicy['ikepolicy']
with context.session.begin(subtransactions=True):
if context.session.query(vpn_models.IPsecSiteConnection).filter_by(
ikepolicy_id=ikepolicy_id).first():
raise vpnaas.IKEPolicyInUse(ikepolicy_id=ikepolicy_id)
ike_db = self._get_resource(
context, vpn_models.IKEPolicy, ikepolicy_id)
if ike:
lifetime_info = ike.get('lifetime')
if lifetime_info:
if lifetime_info.get('units'):
ike['lifetime_units'] = lifetime_info['units']
if lifetime_info.get('value'):
ike['lifetime_value'] = lifetime_info['value']
ike_db.update(ike)
return self._make_ikepolicy_dict(ike_db)
def delete_ikepolicy(self, context, ikepolicy_id):
with context.session.begin(subtransactions=True):
if context.session.query(vpn_models.IPsecSiteConnection).filter_by(
ikepolicy_id=ikepolicy_id).first():
raise vpnaas.IKEPolicyInUse(ikepolicy_id=ikepolicy_id)
ike_db = self._get_resource(
context, vpn_models.IKEPolicy, ikepolicy_id)
context.session.delete(ike_db)
def get_ikepolicy(self, context, ikepolicy_id, fields=None):
ike_db = self._get_resource(
context, vpn_models.IKEPolicy, ikepolicy_id)
return self._make_ikepolicy_dict(ike_db, fields)
def get_ikepolicies(self, context, filters=None, fields=None):
return self._get_collection(context, vpn_models.IKEPolicy,
self._make_ikepolicy_dict,
filters=filters, fields=fields)
def _make_ipsecpolicy_dict(self, ipsecpolicy, fields=None):
res = {'id': ipsecpolicy['id'],
'tenant_id': ipsecpolicy['tenant_id'],
'name': ipsecpolicy['name'],
'description': ipsecpolicy['description'],
'transform_protocol': ipsecpolicy['transform_protocol'],
'auth_algorithm': ipsecpolicy['auth_algorithm'],
'encryption_algorithm': ipsecpolicy['encryption_algorithm'],
'encapsulation_mode': ipsecpolicy['encapsulation_mode'],
'lifetime': {
'units': ipsecpolicy['lifetime_units'],
'value': ipsecpolicy['lifetime_value'],
},
'pfs': ipsecpolicy['pfs']
}
return self._fields(res, fields)
def create_ipsecpolicy(self, context, ipsecpolicy):
ipsecp = ipsecpolicy['ipsecpolicy']
validator = self._get_validator()
tenant_id = self._get_tenant_id_for_create(context, ipsecp)
lifetime_info = ipsecp['lifetime']
lifetime_units = lifetime_info.get('units', 'seconds')
lifetime_value = lifetime_info.get('value', 3600)
with context.session.begin(subtransactions=True):
validator.validate_ipsec_policy(context, ipsecp)
ipsecp_db = vpn_models.IPsecPolicy(
id=uuidutils.generate_uuid(),
tenant_id=tenant_id,
name=ipsecp['name'],
description=ipsecp['description'],
transform_protocol=ipsecp['transform_protocol'],
auth_algorithm=ipsecp['auth_algorithm'],
encryption_algorithm=ipsecp['encryption_algorithm'],
encapsulation_mode=ipsecp['encapsulation_mode'],
lifetime_units=lifetime_units,
lifetime_value=lifetime_value,
pfs=ipsecp['pfs'])
context.session.add(ipsecp_db)
return self._make_ipsecpolicy_dict(ipsecp_db)
def update_ipsecpolicy(self, context, ipsecpolicy_id, ipsecpolicy):
ipsecp = ipsecpolicy['ipsecpolicy']
validator = self._get_validator()
with context.session.begin(subtransactions=True):
validator.validate_ipsec_policy(context, ipsecp)
if context.session.query(vpn_models.IPsecSiteConnection).filter_by(
ipsecpolicy_id=ipsecpolicy_id).first():
raise vpnaas.IPsecPolicyInUse(ipsecpolicy_id=ipsecpolicy_id)
ipsecp_db = self._get_resource(
context, vpn_models.IPsecPolicy, ipsecpolicy_id)
if ipsecp:
lifetime_info = ipsecp.get('lifetime')
if lifetime_info:
if lifetime_info.get('units'):
ipsecp['lifetime_units'] = lifetime_info['units']
if lifetime_info.get('value'):
ipsecp['lifetime_value'] = lifetime_info['value']
ipsecp_db.update(ipsecp)
return self._make_ipsecpolicy_dict(ipsecp_db)
def delete_ipsecpolicy(self, context, ipsecpolicy_id):
with context.session.begin(subtransactions=True):
if context.session.query(vpn_models.IPsecSiteConnection).filter_by(
ipsecpolicy_id=ipsecpolicy_id).first():
raise vpnaas.IPsecPolicyInUse(ipsecpolicy_id=ipsecpolicy_id)
ipsec_db = self._get_resource(
context, vpn_models.IPsecPolicy, ipsecpolicy_id)
context.session.delete(ipsec_db)
def get_ipsecpolicy(self, context, ipsecpolicy_id, fields=None):
ipsec_db = self._get_resource(
context, vpn_models.IPsecPolicy, ipsecpolicy_id)
return self._make_ipsecpolicy_dict(ipsec_db, fields)
def get_ipsecpolicies(self, context, filters=None, fields=None):
return self._get_collection(context, vpn_models.IPsecPolicy,
self._make_ipsecpolicy_dict,
filters=filters, fields=fields)
def _make_vpnservice_dict(self, vpnservice, fields=None):
res = {'id': vpnservice['id'],
'name': vpnservice['name'],
'description': vpnservice['description'],
'tenant_id': vpnservice['tenant_id'],
'subnet_id': vpnservice['subnet_id'],
'router_id': vpnservice['router_id'],
'admin_state_up': vpnservice['admin_state_up'],
'external_v4_ip': vpnservice['external_v4_ip'],
'external_v6_ip': vpnservice['external_v6_ip'],
'status': vpnservice['status']}
return self._fields(res, fields)
def create_vpnservice(self, context, vpnservice):
vpns = vpnservice['vpnservice']
tenant_id = self._get_tenant_id_for_create(context, vpns)
validator = self._get_validator()
with context.session.begin(subtransactions=True):
validator.validate_vpnservice(context, vpns)
vpnservice_db = vpn_models.VPNService(
id=uuidutils.generate_uuid(),
tenant_id=tenant_id,
name=vpns['name'],
description=vpns['description'],
subnet_id=vpns['subnet_id'],
router_id=vpns['router_id'],
admin_state_up=vpns['admin_state_up'],
status=constants.PENDING_CREATE)
context.session.add(vpnservice_db)
return self._make_vpnservice_dict(vpnservice_db)
def set_external_tunnel_ips(self, context, vpnservice_id, v4_ip=None,
v6_ip=None):
"""Update the external tunnel IP(s) for service."""
vpns = {'external_v4_ip': v4_ip, 'external_v6_ip': v6_ip}
with context.session.begin(subtransactions=True):
vpns_db = self._get_resource(context, vpn_models.VPNService,
vpnservice_id)
vpns_db.update(vpns)
return self._make_vpnservice_dict(vpns_db)
def update_vpnservice(self, context, vpnservice_id, vpnservice):
vpns = vpnservice['vpnservice']
with context.session.begin(subtransactions=True):
vpns_db = self._get_resource(context, vpn_models.VPNService,
vpnservice_id)
self.assert_update_allowed(vpns_db)
if vpns:
vpns_db.update(vpns)
return self._make_vpnservice_dict(vpns_db)
def delete_vpnservice(self, context, vpnservice_id):
with context.session.begin(subtransactions=True):
if context.session.query(vpn_models.IPsecSiteConnection).filter_by(
vpnservice_id=vpnservice_id
).first():
raise vpnaas.VPNServiceInUse(vpnservice_id=vpnservice_id)
vpns_db = self._get_resource(context, vpn_models.VPNService,
vpnservice_id)
context.session.delete(vpns_db)
def _get_vpnservice(self, context, vpnservice_id):
return self._get_resource(context, vpn_models.VPNService,
vpnservice_id)
def get_vpnservice(self, context, vpnservice_id, fields=None):
vpns_db = self._get_resource(context, vpn_models.VPNService,
vpnservice_id)
return self._make_vpnservice_dict(vpns_db, fields)
def get_vpnservices(self, context, filters=None, fields=None):
return self._get_collection(context, vpn_models.VPNService,
self._make_vpnservice_dict,
filters=filters, fields=fields)
def check_router_in_use(self, context, router_id):
vpnservices = self.get_vpnservices(
context, filters={'router_id': [router_id]})
if vpnservices:
plural = "s" if len(vpnservices) > 1 else ""
services = ",".join([v['id'] for v in vpnservices])
raise l3_exception.RouterInUse(
router_id=router_id,
reason="is currently used by VPN service%(plural)s "
"(%(services)s)" % {'plural': plural,
'services': services})
def check_subnet_in_use(self, context, subnet_id):
with context.session.begin(subtransactions=True):
vpnservices = context.session.query(
vpn_models.VPNService).filter_by(subnet_id=subnet_id).first()
if vpnservices:
raise vpnaas.SubnetInUseByVPNService(
subnet_id=subnet_id,
vpnservice_id=vpnservices['id'])
def _make_endpoint_group_dict(self, endpoint_group, fields=None):
res = {'id': endpoint_group['id'],
'tenant_id': endpoint_group['tenant_id'],
'name': endpoint_group['name'],
'description': endpoint_group['description'],
'type': endpoint_group['endpoint_type'],
'endpoints': [ep['endpoint']
for ep in endpoint_group['endpoints']]}
return self._fields(res, fields)
def create_endpoint_group(self, context, endpoint_group):
group = endpoint_group['endpoint_group']
tenant_id = self._get_tenant_id_for_create(context, group)
validator = self._get_validator()
with context.session.begin(subtransactions=True):
validator.validate_endpoint_group(context, group)
endpoint_group_db = vpn_models.VPNEndpointGroup(
id=uuidutils.generate_uuid(),
tenant_id=tenant_id,
name=group['name'],
description=group['description'],
endpoint_type=group['type'])
context.session.add(endpoint_group_db)
for endpoint in group['endpoints']:
endpoint_db = vpn_models.VPNEndpoint(
endpoint=endpoint,
endpoint_group_id=endpoint_group_db['id']
)
context.session.add(endpoint_db)
return self._make_endpoint_group_dict(endpoint_group_db)
def update_endpoint_group(self, context, endpoint_group_id,
endpoint_group):
group_changes = endpoint_group['endpoint_group']
# Note: Endpoints cannot be changed, so will not do validation
with context.session.begin(subtransactions=True):
endpoint_group_db = self._get_resource(context,
vpn_models.VPNEndpointGroup,
endpoint_group_id)
endpoint_group_db.update(group_changes)
return self._make_endpoint_group_dict(endpoint_group_db)
def delete_endpoint_group(self, context, endpoint_group_id):
with context.session.begin(subtransactions=True):
endpoint_group_db = self._get_resource(
context, vpn_models.VPNEndpointGroup, endpoint_group_id)
context.session.delete(endpoint_group_db)
def get_endpoint_group(self, context, endpoint_group_id, fields=None):
endpoint_group_db = self._get_resource(
context, vpn_models.VPNEndpointGroup, endpoint_group_id)
return self._make_endpoint_group_dict(endpoint_group_db, fields)
def get_endpoint_groups(self, context, filters=None, fields=None):
return self._get_collection(context, vpn_models.VPNEndpointGroup,
self._make_endpoint_group_dict,
filters=filters, fields=fields)
class VPNPluginRpcDbMixin(object):
def _get_agent_hosting_vpn_services(self, context, host):
plugin = manager.NeutronManager.get_plugin()
agent = plugin._get_agent_by_type_and_host(
context, n_constants.AGENT_TYPE_L3, host)
agent_conf = plugin.get_configuration_dict(agent)
# Retreive the agent_mode to check if this is the
# right agent to deploy the vpn service. In the
# case of distributed the vpn service should reside
# only on a dvr_snat node.
agent_mode = agent_conf.get('agent_mode', 'legacy')
if not agent.admin_state_up or agent_mode == 'dvr':
return []
query = context.session.query(vpn_models.VPNService)
query = query.join(vpn_models.IPsecSiteConnection)
query = query.join(vpn_models.IKEPolicy)
query = query.join(vpn_models.IPsecPolicy)
query = query.join(vpn_models.IPsecPeerCidr)
query = query.join(l3_agent_db.RouterL3AgentBinding,
l3_agent_db.RouterL3AgentBinding.router_id ==
vpn_models.VPNService.router_id)
query = query.filter(
l3_agent_db.RouterL3AgentBinding.l3_agent_id == agent.id)
return query
def update_status_by_agent(self, context, service_status_info_list):
"""Updating vpnservice and vpnconnection status.
:param context: context variable
:param service_status_info_list: list of status
The structure is
[{id: vpnservice_id,
status: ACTIVE|DOWN|ERROR,
updated_pending_status: True|False
ipsec_site_connections: {
ipsec_site_connection_id: {
status: ACTIVE|DOWN|ERROR,
updated_pending_status: True|False
}
}]
The agent will set updated_pending_status as True,
when agent update any pending status.
"""
with context.session.begin(subtransactions=True):
for vpnservice in service_status_info_list:
try:
vpnservice_db = self._get_vpnservice(
context, vpnservice['id'])
except vpnaas.VPNServiceNotFound:
LOG.warn(_LW('vpnservice %s in db is already deleted'),
vpnservice['id'])
continue
if (not utils.in_pending_status(vpnservice_db.status)
or vpnservice['updated_pending_status']):
vpnservice_db.status = vpnservice['status']
for conn_id, conn in vpnservice[
'ipsec_site_connections'].items():
self._update_connection_status(
context, conn_id, conn['status'],
conn['updated_pending_status'])
def vpn_callback(resource, event, trigger, **kwargs):
vpnservice = manager.NeutronManager.get_service_plugins().get(
constants.VPN)
if vpnservice:
context = kwargs.get('context')
if resource == resources.ROUTER_GATEWAY:
check_func = vpnservice.check_router_in_use
resource_id = kwargs.get('router_id')
elif resource == resources.ROUTER_INTERFACE:
check_func = vpnservice.check_subnet_in_use
resource_id = kwargs.get('subnet_id')
check_func(context, resource_id)
def migration_callback(resource, event, trigger, **kwargs):
context = kwargs['context']
router = kwargs['router']
vpnservice = manager.NeutronManager.get_service_plugins().get(
constants.VPN)
if vpnservice:
vpnservice.check_router_in_use(context, router['id'])
return True
def subscribe():
registry.subscribe(
vpn_callback, resources.ROUTER_GATEWAY, events.BEFORE_DELETE)
registry.subscribe(
vpn_callback, resources.ROUTER_INTERFACE, events.BEFORE_DELETE)
registry.subscribe(
migration_callback, resources.ROUTER, events.BEFORE_UPDATE)
# NOTE(armax): multiple VPN service plugins (potentially out of tree) may
# inherit from vpn_db and may need the callbacks to be processed. Having an
# implicit subscription (through the module import) preserves the existing
# behavior, and at the same time it avoids fixing it manually in each and
# every vpn plugin outta there. That said, The subscription is also made
# explicitly in the reference vpn plugin. The subscription operation is
# idempotent so there is no harm in registering the same callback multiple
# times.
subscribe()