# Copyright 2015 VMware, Inc. # 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. """ NSX-V3 Plugin router module """ import copy from neutron_lib import exceptions as n_exc from oslo_log import log from vmware_nsx._i18n import _, _LW from vmware_nsx.common import exceptions as nsx_exc from vmware_nsx.common import nsx_constants from vmware_nsx.common import utils from vmware_nsx.nsxlib import v3 as nsxlib LOG = log.getLogger(__name__) MIN_EDGE_NODE_NUM = 1 TIER0_ROUTER_LINK_PORT_NAME = "TIER0-RouterLinkPort" TIER1_ROUTER_LINK_PORT_NAME = "TIER1-RouterLinkPort" ROUTER_INTF_PORT_NAME = "Tier1-RouterDownLinkPort" FIP_NAT_PRI = 900 GW_NAT_PRI = 1000 class RouterLib(object): def __init__(self, router_client, router_port_client): self._router_client = router_client self._router_port_client = router_port_client def validate_tier0(self, tier0_groups_dict, tier0_uuid): err_msg = None try: lrouter = self._router_client.get(tier0_uuid) except nsx_exc.ResourceNotFound: err_msg = (_("Tier0 router %s not found at the backend. Either a " "valid UUID must be specified or a default tier0 " "router UUID must be configured in nsx.ini") % tier0_uuid) else: edge_cluster_uuid = lrouter.get('edge_cluster_id') if not edge_cluster_uuid: err_msg = _("Failed to get edge cluster uuid from tier0 " "router %s at the backend") % lrouter else: edge_cluster = nsxlib.get_edge_cluster(edge_cluster_uuid) member_index_list = [member['member_index'] for member in edge_cluster['members']] if len(member_index_list) < MIN_EDGE_NODE_NUM: err_msg = _("%(act_num)s edge members found in " "edge_cluster %(cluster_id)s, however we " "require at least %(exp_num)s edge nodes " "in edge cluster for use.") % { 'act_num': len(member_index_list), 'exp_num': MIN_EDGE_NODE_NUM, 'cluster_id': edge_cluster_uuid} if err_msg: raise n_exc.InvalidInput(error_message=err_msg) else: tier0_groups_dict[tier0_uuid] = { 'edge_cluster_uuid': edge_cluster_uuid, 'member_index_list': member_index_list} def add_router_link_port(self, tier1_uuid, tier0_uuid, edge_members, tags): # Create Tier0 logical router link port t0_tags = copy.copy(tags) t0_tags = utils.add_v3_tag(t0_tags, 'os-tier0-uuid', tier0_uuid) tier0_link_port = self._router_port_client.create( tier0_uuid, display_name=TIER0_ROUTER_LINK_PORT_NAME, tags=t0_tags, resource_type=nsx_constants.LROUTERPORT_LINKONTIER0, logical_port_id=None, address_groups=None) linked_logical_port_id = tier0_link_port['id'] # Create Tier1 logical router link port t1_tags = copy.copy(tags) t1_tags = utils.add_v3_tag(t1_tags, 'os-tier1-uuid', tier1_uuid) self._router_port_client.create( tier1_uuid, display_name=TIER1_ROUTER_LINK_PORT_NAME, tags=t1_tags, resource_type=nsx_constants.LROUTERPORT_LINKONTIER1, logical_port_id=linked_logical_port_id, address_groups=None) def remove_router_link_port(self, tier1_uuid, tier0_uuid): try: tier1_link_port = ( self._router_port_client.get_tier1_link_port(tier1_uuid)) except nsx_exc.ResourceNotFound: LOG.warning(_LW("Logical router link port for tier1 router: %s " "not found at the backend"), tier1_uuid) return tier1_link_port_id = tier1_link_port['id'] tier0_link_port_id = ( tier1_link_port['linked_logical_router_port_id'].get('target_id')) self._router_port_client.delete(tier1_link_port_id) self._router_port_client.delete(tier0_link_port_id) def update_advertisement(self, logical_router_id, advertise_route_nat, advertise_route_connected, enabled=True): return nsxlib.update_logical_router_advertisement( logical_router_id, advertise_nat_routes=advertise_route_nat, advertise_nsx_connected_routes=advertise_route_connected, enabled=enabled) def delete_gw_snat_rule(self, logical_router_id, gw_ip): return nsxlib.delete_nat_rule_by_values(logical_router_id, translated_network=gw_ip) def add_gw_snat_rule(self, logical_router_id, gw_ip): return nsxlib.add_nat_rule(logical_router_id, action="SNAT", translated_network=gw_ip, rule_priority=GW_NAT_PRI) def update_router_edge_cluster(self, nsx_router_id, edge_cluster_uuid): return self._router_client.update(nsx_router_id, edge_cluster_id=edge_cluster_uuid) def create_logical_router_intf_port_by_ls_id(self, logical_router_id, display_name, tags, ls_id, logical_switch_port_id, address_groups): try: port = self._router_port_client.get_by_lswitch_id(ls_id) except nsx_exc.ResourceNotFound: return self._router_port_client.create( logical_router_id, display_name, tags, nsx_constants.LROUTERPORT_DOWNLINK, logical_switch_port_id, address_groups) else: return self._router_port_client.update( port['id'], subnets=address_groups) def add_fip_nat_rules(self, logical_router_id, ext_ip, int_ip): nsxlib.add_nat_rule(logical_router_id, action="SNAT", translated_network=ext_ip, source_net=int_ip, rule_priority=FIP_NAT_PRI) nsxlib.add_nat_rule(logical_router_id, action="DNAT", translated_network=int_ip, dest_net=ext_ip, rule_priority=FIP_NAT_PRI) def delete_fip_nat_rules(self, logical_router_id, ext_ip, int_ip): nsxlib.delete_nat_rule_by_values(logical_router_id, action="SNAT", translated_network=ext_ip, match_source_network=int_ip) nsxlib.delete_nat_rule_by_values(logical_router_id, action="DNAT", translated_network=int_ip, match_destination_network=ext_ip) def add_static_routes(self, nsx_router_id, route): return nsxlib.add_static_route(nsx_router_id, route['destination'], route['nexthop']) def delete_static_routes(self, nsx_router_id, route): return nsxlib.delete_static_route_by_values( nsx_router_id, dest_cidr=route['destination'], nexthop=route['nexthop'])