716 lines
32 KiB
Python
716 lines
32 KiB
Python
# Copyright 2019 VMware, Inc.
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# All Rights Reserved
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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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from oslo_config import cfg
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from oslo_log import log as logging
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from oslo_utils import excutils
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from neutron_lib import constants
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from neutron_lib import context as n_context
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from vmware_nsx.common import exceptions as nsx_exc
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from vmware_nsx.services.vpnaas.common_v3 import ipsec_driver as common_driver
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from vmware_nsx.services.vpnaas.common_v3 import ipsec_utils
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from vmware_nsx.services.vpnaas.nsxp import ipsec_validator
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from vmware_nsxlib.v3 import exceptions as nsx_lib_exc
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from vmware_nsxlib.v3 import nsx_constants as consts
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from vmware_nsxlib.v3.policy import constants as policy_constants
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LOG = logging.getLogger(__name__)
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IPSEC = 'ipsec'
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class NSXpIPsecVpnDriver(common_driver.NSXcommonIPsecVpnDriver):
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def __init__(self, service_plugin):
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validator = ipsec_validator.IPsecNsxPValidator(service_plugin)
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super(NSXpIPsecVpnDriver, self).__init__(service_plugin, validator)
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self._nsxpolicy = self._core_plugin.nsxpolicy
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self._nsx_vpn = self._nsxpolicy.ipsec_vpn
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def _get_service_local_cidr_group(self, context, vpnservice, cidrs):
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"""Create/Override the group for the local cidrs of a vpnservice
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used for the edge firewall rules allowing the vpn traffic.
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Return the group id, which is the same as the service id.
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"""
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group_id = vpnservice['id']
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expr = self._nsxpolicy.group.build_ip_address_expression(cidrs)
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tags = self._nsxpolicy.build_v3_tags_payload(
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vpnservice,
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resource_type='os-vpn-service-id',
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project_name=context.tenant_name)
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self._nsxpolicy.group.create_or_overwrite_with_conditions(
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"Local group for VPN service %s" % vpnservice['id'],
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policy_constants.DEFAULT_DOMAIN, group_id=group_id,
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conditions=[expr], tags=tags)
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return group_id
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def _delete_service_local_cidr_group(self, vpnservice):
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try:
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self._nsxpolicy.group.delete(
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policy_constants.DEFAULT_DOMAIN, group_id=vpnservice['id'])
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except nsx_lib_exc.ResourceNotFound:
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# If there is no FWaaS on the router it may not have been created
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LOG.debug("Cannot delete local CIDR group for vpnservice %s as "
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"it was not found", vpnservice['id'])
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def _get_connection_local_cidr_group(self, context, connection, cidrs):
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"""Create/Override the group for the local cidrs of a connection
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used for the edge firewall rules allowing the vpn traffic.
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Return the group id, which is the same as the connection id.
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"""
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group_id = connection['id']
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expr = self._nsxpolicy.group.build_ip_address_expression(cidrs)
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tags = self._nsxpolicy.build_v3_tags_payload(
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connection,
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resource_type='os-vpn-connection-id',
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project_name=context.tenant_name)
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self._nsxpolicy.group.create_or_overwrite_with_conditions(
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"Local group for VPN connection %s" % connection['id'],
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policy_constants.DEFAULT_DOMAIN, group_id=group_id,
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conditions=[expr], tags=tags)
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return group_id
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def _delete_connection_local_cidr_group(self, connection):
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try:
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self._nsxpolicy.group.delete(
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policy_constants.DEFAULT_DOMAIN, group_id=connection['id'])
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except nsx_lib_exc.ResourceNotFound:
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# If there is no FWaaS on the router it may not have been created
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LOG.debug("Cannot delete local CIDR group for connection %s as "
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"it was not found", connection['id'])
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def _get_peer_cidr_group(self, context, conn):
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"""Create/Override the group for the peer cidrs of a connection
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used for the edge firewall rules allowing the vpn traffic.
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Return the group id, which is the same as the connection id.
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"""
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group_ips = self.validator._get_peer_cidrs(context, conn)
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group_id = conn['id']
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expr = self._nsxpolicy.group.build_ip_address_expression(group_ips)
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tags = self._nsxpolicy.build_v3_tags_payload(
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conn,
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resource_type='os-vpn-connection-id',
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project_name=context.tenant_name)
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self._nsxpolicy.group.create_or_overwrite_with_conditions(
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"Peer group for VPN connection %s" % conn['id'],
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policy_constants.DEFAULT_DOMAIN, group_id=group_id,
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conditions=[expr], tags=tags)
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return group_id
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def _delete_peer_cidr_group(self, conn):
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try:
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self._nsxpolicy.group.delete(
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policy_constants.DEFAULT_DOMAIN, group_id=conn['id'])
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except nsx_lib_exc.ResourceNotFound:
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# If there is no FWaaS on the router it may not have been created
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LOG.debug("Cannot delete peer CIDR group for connection %s as "
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"it was not found", conn['id'])
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def _generate_ipsecvpn_firewall_rules(self, plugin_type, context,
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router_id=None):
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"""Return the firewall rules needed to allow vpn traffic"""
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fw_rules = []
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# get all the active services of this router
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filters = {'router_id': [router_id],
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'status': [constants.ACTIVE]}
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services = self.vpn_plugin.get_vpnservices(
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context.elevated(), filters=filters)
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if not services:
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return fw_rules
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for srv in services:
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subnet_id = None
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if srv['subnet_id']:
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subnet = self.l3_plugin.get_subnet(
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context.elevated(), srv['subnet_id'])
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local_cidrs = [subnet['cidr']]
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local_group = self._get_service_local_cidr_group(
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context, srv, local_cidrs)
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# get all the non-errored connections of this service
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filters = {'vpnservice_id': [srv['id']],
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'status': [constants.ACTIVE, constants.DOWN]}
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connections = self.vpn_plugin.get_ipsec_site_connections(
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context.elevated(), filters=filters)
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for conn in connections:
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if not subnet_id:
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# Get local endpoint from group
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local_cidrs = self.validator._get_local_cidrs(
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context.elevated(), conn)
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local_group = self._get_connection_local_cidr_group(
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context, conn, local_cidrs)
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peer_group = self._get_peer_cidr_group(
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context.elevated(), conn)
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fw_rules.append(self._nsxpolicy.gateway_policy.build_entry(
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'VPN connection ' + conn['id'],
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policy_constants.DEFAULT_DOMAIN, router_id,
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action=consts.FW_ACTION_ALLOW,
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dest_groups=[peer_group],
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source_groups=[local_group],
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scope=[self._nsxpolicy.tier1.get_path(router_id)],
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direction=consts.IN_OUT))
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return fw_rules
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def _update_firewall_rules(self, context, vpnservice, conn, delete=False):
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LOG.debug("Updating vpn firewall rules for router %s",
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vpnservice['router_id'])
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self._core_plugin.update_router_firewall(
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context, vpnservice['router_id'])
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# if it is during delete - try to delete the group of this connection
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if delete:
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self._delete_peer_cidr_group(conn)
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def update_router_advertisement(self, context, router_id):
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"""Advertise the local subnets of all the services on the router"""
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# Do nothing in case of a router with no GW or no-snat router
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# (as it is already advertised)
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rtr = self.l3_plugin.get_router(context, router_id)
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if (not rtr.get('external_gateway_info') or
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not rtr['external_gateway_info'].get('enable_snat', True)):
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return
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LOG.debug("Updating router advertisement rules for router %s",
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router_id)
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rules = []
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# get all the active services of this router
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filters = {'router_id': [router_id],
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'status': [constants.ACTIVE]}
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services = self.vpn_plugin.get_vpnservices(
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context.elevated(), filters=filters)
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rule_name_pref = 'VPN advertisement service'
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for srv in services:
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# use only services with non-errored connections
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filters = {'vpnservice_id': [srv['id']],
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'status': [constants.ACTIVE, constants.DOWN]}
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connections = self.vpn_plugin.get_ipsec_site_connections(
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context.elevated(), filters=filters)
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if not connections:
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continue
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if srv['subnet_id']:
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subnet = self.l3_plugin.get_subnet(
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context.elevated(), srv['subnet_id'])
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local_cidrs = [subnet['cidr']]
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else:
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# get all connections local endpoints cidrs
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local_cidrs = []
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for conn in connections:
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local_cidrs.extend(
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self.validator._get_local_cidrs(
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context.elevated(), conn))
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rules.append(self._nsxpolicy.tier1.build_advertisement_rule(
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"%s %s" % (rule_name_pref, srv['id']),
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policy_constants.ADV_RULE_PERMIT,
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policy_constants.ADV_RULE_OPERATOR_GE,
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[policy_constants.ADV_RULE_TIER1_IPSEC_LOCAL_ENDPOINT],
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local_cidrs))
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self._nsxpolicy.tier1.update_advertisement_rules(
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router_id, rules, name_prefix=rule_name_pref)
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def _nsx_tags(self, context, object):
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return self._nsxpolicy.build_v3_tags_payload(
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object, resource_type='os-vpn-connection-id',
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project_name=context.tenant_name)
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def _create_ike_profile(self, context, connection):
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"""Create an ike profile for a connection
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Creating/overwriting IKE profile based on the openstack ike policy
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upon connection creation.
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There is no driver callback for profiles creation so it has to be
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done on connection creation.
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"""
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ike_policy_id = connection['ikepolicy_id']
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ikepolicy = self.vpn_plugin.get_ikepolicy(context, ike_policy_id)
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tags = self._nsxpolicy.build_v3_tags_payload(
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ikepolicy, resource_type='os-vpn-ikepol-id',
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project_name=context.tenant_name)
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try:
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profile_id = self._nsx_vpn.ike_profile.create_or_overwrite(
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ikepolicy['name'] or ikepolicy['id'],
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profile_id=ikepolicy['id'],
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description=ikepolicy['description'],
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encryption_algorithms=[ipsec_utils.ENCRYPTION_ALGORITHM_MAP[
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ikepolicy['encryption_algorithm']]],
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digest_algorithms=[ipsec_utils.AUTH_ALGORITHM_MAP_P[
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ikepolicy['auth_algorithm']]],
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ike_version=ipsec_utils.IKE_VERSION_MAP[
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ikepolicy['ike_version']],
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dh_groups=[ipsec_utils.PFS_MAP_P[ikepolicy['pfs']]],
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sa_life_time=ikepolicy['lifetime']['value'],
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tags=tags)
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except nsx_lib_exc.ManagerError as e:
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msg = _("Failed to create an ike profile: %s") % e
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raise nsx_exc.NsxPluginException(err_msg=msg)
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return profile_id
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def _delete_ike_profile(self, ikeprofile_id):
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try:
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self._nsx_vpn.ike_profile.delete(ikeprofile_id)
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except nsx_lib_exc.ResourceInUse:
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# Still in use by another connection
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LOG.info("IKE profile %s cannot be deleted yet, because "
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"another connection still uses it", ikeprofile_id)
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def _create_ipsec_profile(self, context, connection):
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"""Create a tunnel profile for a connection
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Creating/overwriting tunnel profile based on the openstack ipsec policy
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upon connection creation.
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There is no driver callback for profiles creation so it has to be
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done on connection creation.
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"""
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ipsec_policy_id = connection['ipsecpolicy_id']
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ipsecpolicy = self.vpn_plugin.get_ipsecpolicy(
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context, ipsec_policy_id)
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tags = self._nsxpolicy.build_v3_tags_payload(
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ipsecpolicy, resource_type='os-vpn-ipsecpol-id',
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project_name=context.tenant_name)
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try:
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profile_id = self._nsx_vpn.tunnel_profile.create_or_overwrite(
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ipsecpolicy['name'] or ipsecpolicy['id'],
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profile_id=ipsecpolicy['id'],
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description=ipsecpolicy['description'],
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encryption_algorithms=[ipsec_utils.ENCRYPTION_ALGORITHM_MAP[
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ipsecpolicy['encryption_algorithm']]],
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digest_algorithms=[ipsec_utils.AUTH_ALGORITHM_MAP_P[
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ipsecpolicy['auth_algorithm']]],
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dh_groups=[ipsec_utils.PFS_MAP_P[ipsecpolicy['pfs']]],
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sa_life_time=ipsecpolicy['lifetime']['value'],
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tags=tags)
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except nsx_lib_exc.ManagerError as e:
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msg = _("Failed to create a tunnel profile: %s") % e
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raise nsx_exc.NsxPluginException(err_msg=msg)
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return profile_id
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def _delete_ipsec_profile(self, ipsecprofile_id):
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try:
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self._nsx_vpn.tunnel_profile.delete(ipsecprofile_id)
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except nsx_lib_exc.ResourceInUse:
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# Still in use by another connection
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LOG.info("Tunnel profile %s cannot be deleted yet, because "
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"another connection still uses it", ipsecprofile_id)
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def _create_dpd_profile(self, context, connection):
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"""Create a DPD profile for a connection
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Creating/overwriting DPD profile based on the openstack ipsec
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connection configuration upon connection creation.
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There is no driver callback for profiles creation so it has to be
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done on connection creation.
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"""
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# TODO(asarfaty) consider reusing profiles based on values
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dpd_info = connection['dpd']
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try:
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profile_id = self._nsx_vpn.dpd_profile.create_or_overwrite(
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self._get_dpd_profile_name(connection),
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profile_id=connection['id'],
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description='neutron dpd profile %s' % connection['id'],
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dpd_probe_interval=dpd_info.get('timeout'),
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enabled=True if dpd_info.get('action') == 'hold' else False,
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tags=self._nsx_tags(context, connection))
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except nsx_lib_exc.ManagerError as e:
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msg = _("Failed to create a DPD profile: %s") % e
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raise nsx_exc.NsxPluginException(err_msg=msg)
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return profile_id
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def _delete_dpd_profile(self, dpdprofile_id):
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self._nsx_vpn.dpd_profile.delete(dpdprofile_id)
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def _update_dpd_profile(self, connection):
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dpd_info = connection['dpd']
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self._nsx_vpn.dpd_profile.update(
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connection['id'],
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name=self._get_dpd_profile_name(connection),
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dpd_probe_interval=dpd_info.get('timeout'),
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enabled=True if dpd_info.get('action') == 'hold' else False)
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def _create_local_endpoint(self, context, connection, vpnservice):
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"""Creating/overwrite an NSX local endpoint for a logical router
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This endpoint can be reused by other connections, and will be deleted
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when the router vpn service is deleted.
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"""
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# use the router GW as the local ip
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router_id = vpnservice['router']['id']
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local_addr = vpnservice['external_v4_ip']
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# Add the neutron router-id to the tags to help search later
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tags = self._nsxpolicy.build_v3_tags_payload(
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{'id': router_id, 'project_id': vpnservice['project_id']},
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resource_type='os-neutron-router-id',
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project_name=context.tenant_name)
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try:
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ep_client = self._nsx_vpn.local_endpoint
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local_endpoint_id = ep_client.create_or_overwrite(
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'Local endpoint for OS VPNaaS on router %s' % router_id,
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router_id,
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router_id,
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endpoint_id=router_id,
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local_address=local_addr,
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tags=tags)
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except nsx_lib_exc.ManagerError as e:
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msg = _("Failed to create a local endpoint: %s") % e
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raise nsx_exc.NsxPluginException(err_msg=msg)
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return local_endpoint_id
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def _delete_local_endpoint(self, vpnservice):
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router_id = vpnservice['router']['id']
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ctx = n_context.get_admin_context()
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port = self._find_vpn_service_port(ctx, router_id)
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if port:
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self._nsx_vpn.local_endpoint.delete(
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router_id, router_id, router_id)
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self.l3_plugin.delete_port(ctx, port['id'], force_delete_vpn=True)
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def _get_session_rules(self, context, connection):
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peer_cidrs = self.validator._get_peer_cidrs(context, connection)
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local_cidrs = self.validator._get_local_cidrs(context, connection)
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rule = self._nsx_vpn.session.build_rule(
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connection['name'] or connection['id'], connection['id'],
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source_cidrs=local_cidrs, destination_cidrs=peer_cidrs)
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return [rule]
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def _create_session(self, context, connection, vpnservice, local_ep_id,
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ikeprofile_id, ipsecprofile_id, dpdprofile_id,
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rules, enabled=True):
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try:
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router_id = vpnservice['router_id']
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session_id = self._nsx_vpn.session.create_or_overwrite(
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connection['name'] or connection['id'],
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tier1_id=router_id,
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vpn_service_id=router_id,
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session_id=connection['id'],
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description=connection['description'],
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peer_address=connection['peer_address'],
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peer_id=connection['peer_id'],
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psk=connection['psk'],
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rules=rules,
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dpd_profile_id=dpdprofile_id,
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ike_profile_id=ikeprofile_id,
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tunnel_profile_id=ipsecprofile_id,
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local_endpoint_id=local_ep_id,
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enabled=enabled,
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tags=self._nsx_tags(context, connection))
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except nsx_lib_exc.ManagerError as e:
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msg = _("Failed to create a session: %s") % e
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raise nsx_exc.NsxPluginException(err_msg=msg)
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return session_id
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def _update_session(self, connection, vpnservice, rules=None,
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enabled=True):
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router_id = vpnservice['router_id']
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args = {'enabled': enabled}
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if rules is not None:
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args['rules'] = rules
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self._nsx_vpn.session.update(
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router_id, router_id, connection['id'],
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name=connection['name'] or connection['id'],
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description=connection['description'],
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peer_address=connection['peer_address'],
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peer_id=connection['peer_id'],
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psk=connection['psk'],
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**args)
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def get_ipsec_site_connection_status(self, context, ipsec_site_conn_id):
|
|
# find out the router-id of this connection
|
|
conn = self.vpn_plugin._get_ipsec_site_connection(
|
|
context, ipsec_site_conn_id)
|
|
vpnservice_id = conn.vpnservice_id
|
|
vpnservice = self.service_plugin._get_vpnservice(
|
|
context, vpnservice_id)
|
|
router_id = vpnservice['router_id']
|
|
# Get the NSX detailed status
|
|
try:
|
|
status_result = self._nsx_vpn.session.get_status(
|
|
router_id, router_id, ipsec_site_conn_id)
|
|
if status_result and 'results' in status_result:
|
|
status = status_result['results'][0].get('runtime_status', '')
|
|
# NSX statuses are UP, DOWN, DEGRADE
|
|
# VPNaaS connection status should be ACTIVE or DOWN
|
|
if status == 'UP':
|
|
return 'ACTIVE'
|
|
elif status == 'DOWN' or status == 'DEGRADED':
|
|
return 'DOWN'
|
|
except nsx_lib_exc.ResourceNotFound:
|
|
LOG.debug("Status for VPN session %s was not found",
|
|
ipsec_site_conn_id)
|
|
|
|
def _delete_session(self, vpnservice, session_id):
|
|
router_id = vpnservice['router_id']
|
|
self._nsx_vpn.session.delete(router_id, router_id, session_id)
|
|
|
|
def create_ipsec_site_connection(self, context, ipsec_site_conn):
|
|
LOG.debug('Creating ipsec site connection %(conn_info)s.',
|
|
{"conn_info": ipsec_site_conn})
|
|
# Note(asarfaty) the plugin already calls the validator
|
|
# which also validated the policies and service
|
|
|
|
ikeprofile_id = None
|
|
ipsecprofile_id = None
|
|
dpdprofile_id = None
|
|
session_id = None
|
|
vpnservice_id = ipsec_site_conn['vpnservice_id']
|
|
vpnservice = self.service_plugin._get_vpnservice(
|
|
context, vpnservice_id)
|
|
ipsec_id = ipsec_site_conn["id"]
|
|
|
|
try:
|
|
# create the ike profile
|
|
ikeprofile_id = self._create_ike_profile(
|
|
context, ipsec_site_conn)
|
|
LOG.debug("Created NSX ike profile %s", ikeprofile_id)
|
|
|
|
# create the ipsec profile
|
|
ipsecprofile_id = self._create_ipsec_profile(
|
|
context, ipsec_site_conn)
|
|
LOG.debug("Created NSX ipsec profile %s", ipsecprofile_id)
|
|
|
|
# create the dpd profile
|
|
dpdprofile_id = self._create_dpd_profile(
|
|
context, ipsec_site_conn)
|
|
LOG.debug("Created NSX dpd profile %s", dpdprofile_id)
|
|
|
|
# create or reuse a local endpoint using the vpn service
|
|
local_ep_id = self._create_local_endpoint(
|
|
context, ipsec_site_conn, vpnservice)
|
|
|
|
# Finally: create the session with policy rules
|
|
rules = self._get_session_rules(context, ipsec_site_conn)
|
|
connection_enabled = (vpnservice['admin_state_up'] and
|
|
ipsec_site_conn['admin_state_up'])
|
|
self._create_session(
|
|
context, ipsec_site_conn, vpnservice,
|
|
local_ep_id, ikeprofile_id,
|
|
ipsecprofile_id, dpdprofile_id, rules,
|
|
enabled=connection_enabled)
|
|
|
|
self._update_status(context, vpnservice_id, ipsec_id,
|
|
constants.ACTIVE)
|
|
|
|
except nsx_exc.NsxPluginException:
|
|
with excutils.save_and_reraise_exception():
|
|
self._update_status(context, vpnservice_id, ipsec_id,
|
|
constants.ERROR)
|
|
# delete the NSX objects that were already created
|
|
# Do not delete reused objects: service, local endpoint
|
|
if session_id:
|
|
self._delete_session(vpnservice, session_id)
|
|
if dpdprofile_id:
|
|
self._delete_dpd_profile(dpdprofile_id)
|
|
if ipsecprofile_id:
|
|
self._delete_ipsec_profile(ipsecprofile_id)
|
|
if ikeprofile_id:
|
|
self._delete_ike_profile(ikeprofile_id)
|
|
|
|
# update router firewall rules
|
|
self._update_firewall_rules(context, vpnservice, ipsec_site_conn)
|
|
|
|
# update router advertisement rules
|
|
self.update_router_advertisement(context, vpnservice['router_id'])
|
|
|
|
def delete_ipsec_site_connection(self, context, ipsec_site_conn):
|
|
LOG.debug('Deleting ipsec site connection %(site)s.',
|
|
{"site": ipsec_site_conn})
|
|
|
|
vpnservice_id = ipsec_site_conn['vpnservice_id']
|
|
vpnservice = self.service_plugin._get_vpnservice(
|
|
context, vpnservice_id)
|
|
|
|
self._delete_session(vpnservice, ipsec_site_conn['id'])
|
|
self._delete_dpd_profile(ipsec_site_conn['id'])
|
|
self._delete_ipsec_profile(ipsec_site_conn['ipsecpolicy_id'])
|
|
self._delete_ike_profile(ipsec_site_conn['ikepolicy_id'])
|
|
|
|
# update router firewall rules
|
|
self._update_firewall_rules(context, vpnservice, ipsec_site_conn,
|
|
delete=True)
|
|
self._delete_service_local_cidr_group(ipsec_site_conn)
|
|
|
|
# update router advertisement rules
|
|
self.update_router_advertisement(context, vpnservice['router_id'])
|
|
|
|
def update_ipsec_site_connection(self, context, old_ipsec_conn,
|
|
ipsec_site_conn):
|
|
LOG.debug('Updating ipsec site connection new %(site)s.',
|
|
{"site": ipsec_site_conn})
|
|
LOG.debug('Updating ipsec site connection old %(site)s.',
|
|
{"site": old_ipsec_conn})
|
|
|
|
# Note(asarfaty) the plugin already calls the validator
|
|
# which also validated the policies and service
|
|
# Note(asarfaty): the VPN plugin does not allow changing ike/tunnel
|
|
# policy or the service of a connection during update.
|
|
vpnservice_id = old_ipsec_conn['vpnservice_id']
|
|
vpnservice = self.service_plugin._get_vpnservice(
|
|
context, vpnservice_id)
|
|
|
|
# check if the dpd configuration changed
|
|
old_dpd = old_ipsec_conn['dpd']
|
|
new_dpd = ipsec_site_conn['dpd']
|
|
if (old_dpd['action'] != new_dpd['action'] or
|
|
old_dpd['timeout'] != new_dpd['timeout'] or
|
|
old_ipsec_conn['name'] != ipsec_site_conn['name']):
|
|
self._update_dpd_profile(ipsec_site_conn)
|
|
|
|
rules = self._get_session_rules(context, ipsec_site_conn)
|
|
connection_enabled = (vpnservice['admin_state_up'] and
|
|
ipsec_site_conn['admin_state_up'])
|
|
|
|
try:
|
|
self._update_session(ipsec_site_conn, vpnservice, rules,
|
|
enabled=connection_enabled)
|
|
except nsx_lib_exc.ManagerError as e:
|
|
self._update_status(context, vpnservice_id,
|
|
ipsec_site_conn['id'],
|
|
constants.ERROR)
|
|
msg = _("Failed to update VPN session %(id)s: %(error)s") % {
|
|
"id": ipsec_site_conn['id'], "error": e}
|
|
raise nsx_exc.NsxPluginException(err_msg=msg)
|
|
|
|
if (ipsec_site_conn['peer_cidrs'] != old_ipsec_conn['peer_cidrs'] or
|
|
ipsec_site_conn['peer_ep_group_id'] !=
|
|
old_ipsec_conn['peer_ep_group_id']):
|
|
# Update firewall
|
|
self._update_firewall_rules(context, vpnservice, ipsec_site_conn)
|
|
|
|
# No service updates. No need to update router advertisement rules
|
|
|
|
def _create_vpn_service(self, context, vpnservice):
|
|
"""Create or overwrite tier1 vpn service
|
|
The service is created on the TIER1 router attached to the service
|
|
The NSX can keep only one service per tier1 router so we reuse it
|
|
"""
|
|
router_id = vpnservice['router_id']
|
|
tags = self._nsxpolicy.build_v3_tags_payload(
|
|
{'id': router_id, 'project_id': vpnservice['project_id']},
|
|
resource_type='os-neutron-router-id',
|
|
project_name=context.tenant_name)
|
|
|
|
self._nsx_vpn.service.create_or_overwrite(
|
|
'Neutron VPN service for T1 router ' + router_id,
|
|
router_id,
|
|
vpn_service_id=router_id,
|
|
enabled=True,
|
|
ike_log_level=ipsec_utils.DEFAULT_LOG_LEVEL,
|
|
tags=tags)
|
|
|
|
def _should_delete_nsx_service(self, context, vpnservice):
|
|
# Check that no neutron vpn-service is configured for the same router
|
|
router_id = vpnservice['router_id']
|
|
filters = {'router_id': [router_id]}
|
|
services = self.vpn_plugin.get_vpnservices(
|
|
context.elevated(), filters=filters)
|
|
if not services:
|
|
return True
|
|
|
|
def _delete_vpn_service(self, context, vpnservice):
|
|
router_id = vpnservice['router_id']
|
|
try:
|
|
self._nsx_vpn.service.delete(router_id, router_id)
|
|
except Exception as e:
|
|
LOG.error("Failed to delete VPN service %s: %s",
|
|
router_id, e)
|
|
|
|
# check if service router should be deleted
|
|
if not self._core_plugin.service_router_has_services(
|
|
context.elevated(), router_id):
|
|
self._core_plugin.delete_service_router(router_id)
|
|
|
|
def create_vpnservice(self, context, new_vpnservice):
|
|
LOG.info('Creating VPN service %(vpn)s', {'vpn': new_vpnservice})
|
|
vpnservice_id = new_vpnservice['id']
|
|
vpnservice = self.service_plugin._get_vpnservice(context,
|
|
vpnservice_id)
|
|
try:
|
|
self.validator.validate_vpnservice(context, vpnservice)
|
|
local_address = self._get_service_local_address(
|
|
context.elevated(), vpnservice)
|
|
except Exception:
|
|
with excutils.save_and_reraise_exception():
|
|
# Rolling back change on the neutron
|
|
self.service_plugin.delete_vpnservice(context, vpnservice_id)
|
|
|
|
vpnservice['external_v4_ip'] = local_address
|
|
self.service_plugin.set_external_tunnel_ips(context,
|
|
vpnservice_id,
|
|
v4_ip=local_address)
|
|
|
|
# Make sure this tier1 has service router
|
|
router_id = vpnservice['router_id']
|
|
if not self._core_plugin.verify_sr_at_backend(router_id):
|
|
self._core_plugin.create_service_router(context, router_id)
|
|
|
|
# create the NSX vpn service
|
|
try:
|
|
self._create_vpn_service(context, vpnservice)
|
|
except nsx_lib_exc.ManagerError as e:
|
|
self._update_status(context, vpnservice_id, None, constants.ERROR)
|
|
msg = _("Failed to create vpn service: %s") % e
|
|
raise nsx_exc.NsxPluginException(err_msg=msg)
|
|
|
|
# update neutron vpnservice status to active
|
|
self._update_status(context, vpnservice_id, None, constants.ACTIVE)
|
|
|
|
def update_vpnservice(self, context, old_vpnservice, vpnservice):
|
|
# Only handle the case of admin-state-up changes
|
|
if old_vpnservice['admin_state_up'] != vpnservice['admin_state_up']:
|
|
# update all relevant connections
|
|
filters = {'vpnservice_id': [vpnservice['id']]}
|
|
connections = self.vpn_plugin.get_ipsec_site_connections(
|
|
context, filters=filters)
|
|
for conn in connections:
|
|
connection_enabled = (vpnservice['admin_state_up'] and
|
|
conn['admin_state_up'])
|
|
self._update_session(conn, vpnservice,
|
|
enabled=connection_enabled)
|
|
|
|
def delete_vpnservice(self, context, vpnservice):
|
|
if self._should_delete_nsx_service(context, vpnservice):
|
|
self._delete_local_endpoint(vpnservice)
|
|
self._delete_vpn_service(context, vpnservice)
|
|
self._delete_service_local_cidr_group(vpnservice)
|
|
|
|
def validate_router_gw_info(self, context, router_id, gw_info):
|
|
"""Upon router gw update verify no overlapping subnets to advertise"""
|
|
# check if this router has a vpn service
|
|
admin_con = context.elevated()
|
|
# get all relevant services, except those waiting to be deleted or in
|
|
# ERROR state
|
|
filters = {'router_id': [router_id],
|
|
'status': [constants.ACTIVE, constants.PENDING_CREATE,
|
|
constants.INACTIVE, constants.PENDING_UPDATE]}
|
|
services = self.vpn_plugin.get_vpnservices(admin_con, filters=filters)
|
|
if not services:
|
|
# This is a non-vpn router. if snat was disabled, should check
|
|
# there is no overlapping with vpn connections advertised
|
|
if (gw_info and
|
|
not gw_info.get('enable_snat',
|
|
cfg.CONF.enable_snat_by_default)):
|
|
# get router subnets
|
|
subnets = self._core_plugin._find_router_subnets_cidrs(
|
|
context, router_id)
|
|
# find all vpn services with connections
|
|
if not self._check_subnets_overlap_with_all_conns(
|
|
admin_con, subnets):
|
|
raise common_driver.RouterWithOverlapNoSnat(
|
|
router_id=router_id)
|