# 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. import copy import time import mock import netaddr from neutron_lib.api.definitions import address_scope from neutron_lib.api.definitions import agent as agent_apidef from neutron_lib.api.definitions import allowedaddresspairs as addr_apidef from neutron_lib.api.definitions import availability_zone from neutron_lib.api.definitions import dhcpagentscheduler from neutron_lib.api.definitions import external_net as extnet_apidef from neutron_lib.api.definitions import extra_dhcp_opt as ext_edo from neutron_lib.api.definitions import extraroute from neutron_lib.api.definitions import l3 as l3_apidef from neutron_lib.api.definitions import network_availability_zone from neutron_lib.api.definitions import port_security as psec from neutron_lib.api.definitions import portbindings as pbin_apidef from neutron_lib.api.definitions import provider_net from neutron_lib.api.definitions import router_availability_zone from neutron_lib.api.definitions import vlantransparent as vlan_apidef from neutron_lib.api import extensions from neutron_lib.api import validators from neutron_lib.callbacks import events from neutron_lib.callbacks import exceptions as callback_exc from neutron_lib.callbacks import registry from neutron_lib.callbacks import resources from neutron_lib import constants as const from neutron_lib import context as q_context from neutron_lib.db import api as db_api from neutron_lib.db import resource_extend from neutron_lib.db import utils as db_utils from neutron_lib import exceptions as n_exc from neutron_lib.exceptions import l3 as l3_exc from neutron_lib.plugins import constants as plugin_const from neutron_lib.plugins import directory from neutron_lib.services.qos import constants as qos_consts from neutron.api.rpc.agentnotifiers import dhcp_rpc_agent_api from neutron.api.rpc.handlers import dhcp_rpc from neutron.api.rpc.handlers import metadata_rpc from neutron.db import agents_db from neutron.db import l3_db from neutron.db.models import l3 as l3_db_models from neutron.db.models import securitygroup as securitygroup_model from neutron.db import models_v2 from neutron.extensions import securitygroup as ext_sg from neutron.quota import resource_registry from oslo_config import cfg from oslo_db import exception as db_exc from oslo_log import log from oslo_utils import excutils from oslo_utils import importutils from oslo_utils import uuidutils from vmware_nsx._i18n import _ from vmware_nsx.common import config # noqa from vmware_nsx.common import exceptions as nsx_exc from vmware_nsx.common import l3_rpc_agent_api from vmware_nsx.common import locking from vmware_nsx.common import managers from vmware_nsx.common import nsx_constants from vmware_nsx.common import utils from vmware_nsx.db import db as nsx_db from vmware_nsx.dhcp_meta import rpc as nsx_rpc from vmware_nsx.extensions import api_replay from vmware_nsx.extensions import housekeeper as hk_ext from vmware_nsx.extensions import maclearning as mac_ext from vmware_nsx.extensions import projectpluginmap from vmware_nsx.extensions import providersecuritygroup as provider_sg from vmware_nsx.extensions import secgroup_rule_local_ip_prefix from vmware_nsx.extensions import securitygrouplogging as sg_logging from vmware_nsx.plugins.common.housekeeper import housekeeper from vmware_nsx.plugins.common_v3 import plugin as nsx_plugin_common from vmware_nsx.plugins.common_v3 import utils as common_utils from vmware_nsx.plugins.nsx import utils as tvd_utils from vmware_nsx.plugins.nsx_v3 import availability_zones as nsx_az from vmware_nsx.plugins.nsx_v3 import utils as v3_utils from vmware_nsx.services.fwaas.common import utils as fwaas_utils from vmware_nsx.services.fwaas.nsx_v3 import fwaas_callbacks_v2 from vmware_nsx.services.lbaas import lb_const from vmware_nsx.services.lbaas.nsx_v3.implementation import healthmonitor_mgr from vmware_nsx.services.lbaas.nsx_v3.implementation import l7policy_mgr from vmware_nsx.services.lbaas.nsx_v3.implementation import l7rule_mgr from vmware_nsx.services.lbaas.nsx_v3.implementation import listener_mgr from vmware_nsx.services.lbaas.nsx_v3.implementation import loadbalancer_mgr from vmware_nsx.services.lbaas.nsx_v3.implementation import member_mgr from vmware_nsx.services.lbaas.nsx_v3.implementation import pool_mgr from vmware_nsx.services.lbaas.octavia import constants as oct_const from vmware_nsx.services.lbaas.octavia import octavia_listener from vmware_nsx.services.qos.common import utils as qos_com_utils from vmware_nsx.services.qos.nsx_v3 import driver as qos_driver from vmware_nsx.services.qos.nsx_v3 import utils as qos_utils from vmware_nsx.services.trunk.nsx_v3 import driver as trunk_driver from vmware_nsxlib.v3 import core_resources as nsx_resources from vmware_nsxlib.v3 import exceptions as nsx_lib_exc from vmware_nsxlib.v3 import nsx_constants as nsxlib_consts from vmware_nsxlib.v3 import router as nsxlib_router from vmware_nsxlib.v3 import utils as nsxlib_utils LOG = log.getLogger(__name__) NSX_V3_NO_PSEC_PROFILE_NAME = 'nsx-default-spoof-guard-vif-profile' NSX_V3_MAC_LEARNING_PROFILE_NAME = 'neutron_port_mac_learning_profile' NSX_V3_MAC_DISABLED_PROFILE_NAME = 'neutron_port_mac_learning_disabled_profile' NSX_V3_FW_DEFAULT_SECTION = 'OS Default Section for Neutron Security-Groups' NSX_V3_FW_DEFAULT_NS_GROUP = 'os_default_section_ns_group' NSX_V3_DEFAULT_SECTION = 'OS-Default-Section' NSX_V3_EXCLUDED_PORT_NSGROUP_NAME = 'neutron_excluded_port_nsgroup' NSX_V3_NON_VIF_PROFILE = 'nsx-default-switch-security-non-vif-profile' NSX_V3_NON_VIF_ENS_PROFILE = \ 'nsx-default-switch-security-non-vif-profile-for-ens' NSX_V3_SERVER_SSL_PROFILE = 'nsx-default-server-ssl-profile' NSX_V3_CLIENT_SSL_PROFILE = 'nsx-default-client-ssl-profile' @resource_extend.has_resource_extenders class NsxV3Plugin(nsx_plugin_common.NsxPluginV3Base, hk_ext.Housekeeper): __native_bulk_support = True __native_pagination_support = True __native_sorting_support = True supported_extension_aliases = [addr_apidef.ALIAS, address_scope.ALIAS, "quotas", pbin_apidef.ALIAS, ext_edo.ALIAS, agent_apidef.ALIAS, dhcpagentscheduler.ALIAS, "ext-gw-mode", "security-group", secgroup_rule_local_ip_prefix.ALIAS, psec.ALIAS, provider_net.ALIAS, extnet_apidef.ALIAS, extraroute.ALIAS, l3_apidef.ALIAS, availability_zone.ALIAS, network_availability_zone.ALIAS, router_availability_zone.ALIAS, "subnet_allocation", sg_logging.ALIAS, provider_sg.ALIAS, hk_ext.ALIAS, "port-security-groups-filtering", "advanced-service-providers"] @resource_registry.tracked_resources( network=models_v2.Network, port=models_v2.Port, subnet=models_v2.Subnet, subnetpool=models_v2.SubnetPool, security_group=securitygroup_model.SecurityGroup, security_group_rule=securitygroup_model.SecurityGroupRule, router=l3_db_models.Router, floatingip=l3_db_models.FloatingIP) def __init__(self): self.fwaas_callbacks = None self._is_sub_plugin = tvd_utils.is_tvd_core_plugin() self.init_is_complete = False self.octavia_listener = None self.octavia_stats_collector = None nsxlib_utils.set_is_attr_callback(validators.is_attr_set) self._extend_fault_map() if self._is_sub_plugin: extension_drivers = cfg.CONF.nsx_tvd.nsx_v3_extension_drivers self._update_project_mapping() else: extension_drivers = cfg.CONF.nsx_extension_drivers self._extension_manager = managers.ExtensionManager( extension_drivers=extension_drivers) self.cfg_group = 'nsx_v3' # group name for nsx_v3 section in nsx.ini super(NsxV3Plugin, self).__init__() # Bind the dummy L3 notifications self.l3_rpc_notifier = l3_rpc_agent_api.L3NotifyAPI() LOG.info("Starting NsxV3Plugin") self._extension_manager.initialize() self.supported_extension_aliases.extend( self._extension_manager.extension_aliases()) self.nsxlib = common_utils.get_nsxlib_wrapper() nsxlib_utils.set_inject_headers_callback(common_utils.inject_headers) registry.subscribe( self.on_subnetpool_address_scope_updated, resources.SUBNETPOOL_ADDRESS_SCOPE, events.AFTER_UPDATE) self._nsx_version = self.nsxlib.get_version() LOG.info("NSX Version: %s", self._nsx_version) self.tier0_groups_dict = {} # Initialize the network availability zones, which will be used only # when native_dhcp_metadata is True self.init_availability_zones() # Translate configured transport zones, routers, dhcp profile and # metadata proxy names to uuid. self._translate_configured_names_to_uuids() self._init_dhcp_metadata() self._prepare_default_rules() # init profiles on nsx backend self._init_nsx_profiles() # Include exclude NSGroup LOG.debug("Initializing NSX v3 Excluded Port NSGroup") self._excluded_port_nsgroup = None self._excluded_port_nsgroup = self._init_excluded_port_nsgroup() if not self._excluded_port_nsgroup: msg = _("Unable to initialize NSX v3 Excluded Port NSGroup %s" ) % NSX_V3_EXCLUDED_PORT_NSGROUP_NAME raise nsx_exc.NsxPluginException(err_msg=msg) qos_driver.register(qos_utils.QosNotificationsHandler()) self._unsubscribe_callback_events() if cfg.CONF.api_replay_mode: self.supported_extension_aliases.append(api_replay.ALIAS) # Support transparent VLANS from 2.2.0 onwards. The feature is only # supported if the global configuration flag vlan_transparent is # True if cfg.CONF.vlan_transparent: self.supported_extension_aliases.append(vlan_apidef.ALIAS) # Register NSXv3 trunk driver to support trunk extensions self.trunk_driver = trunk_driver.NsxV3TrunkDriver.create(self) registry.subscribe(self.spawn_complete, resources.PROCESS, events.AFTER_SPAWN) # subscribe the init complete method last, so it will be called only # if init was successful registry.subscribe(self.init_complete, resources.PROCESS, events.AFTER_INIT) def _update_project_mapping(self): ctx = q_context.get_admin_context() try: nsx_db.add_project_plugin_mapping( ctx.session, nsx_constants.INTERNAL_V3_TENANT_ID, projectpluginmap.NsxPlugins.NSX_T) except db_exc.DBDuplicateEntry: pass def _ensure_default_rules(self): # Include default section NSGroup LOG.debug("Initializing NSX v3 default section NSGroup") self._default_section_nsgroup = None self._default_section_nsgroup = self._init_default_section_nsgroup() if not self._default_section_nsgroup: msg = _("Unable to initialize NSX v3 default section NSGroup %s" ) % NSX_V3_FW_DEFAULT_NS_GROUP raise nsx_exc.NsxPluginException(err_msg=msg) self.default_section = self._init_default_section_rules() LOG.info("Initializing NSX v3 default section %(section)s " "and NSGroup %(nsgroup)s", {'section': self.default_section, 'nsgroup': self._default_section_nsgroup.get('id')}) def _ensure_global_sg_placeholder(self, context): found_sg = False try: super(NsxV3Plugin, self).get_security_group( context, v3_utils.NSX_V3_OS_DFW_UUID, fields=['id']) except ext_sg.SecurityGroupNotFound: LOG.warning('Creating a global security group') sec_group = {'security_group': {'id': v3_utils.NSX_V3_OS_DFW_UUID, 'tenant_id': nsx_constants.INTERNAL_V3_TENANT_ID, 'name': 'NSX Internal', 'description': ''}} try: # ensure that the global default is created, and only once # without retrying on DB errors with mock.patch("oslo_db.api.wrap_db_retry." "_is_exception_expected", return_value=False): super(NsxV3Plugin, self).create_security_group( context, sec_group, True) except Exception: # Treat a race of multiple processing creating the sec group LOG.warning('Unable to create global security group. Probably ' 'already created by another server') found_sg = True else: LOG.info('Found a global security group') found_sg = True if found_sg: # check if the section and nsgroup are already in the DB. If not # it means another server is creating them right now. nsgroup_id, section_id = nsx_db.get_sg_mappings( context.session, v3_utils.NSX_V3_OS_DFW_UUID) if nsgroup_id is None or section_id is None: LOG.info("Global security exists without NSX objects") # Wait a bit to let the other server finish # TODO(asarfaty): consider sleeping until it is in the DB time.sleep(3) def _cleanup_duplicates(self, ns_group_id, section_id): LOG.warning("Duplicate rules created! Deleting NS group %(nsgroup)s " "and section %(section)s", {'nsgroup': ns_group_id, 'section': section_id}) # Delete duplicates created if section_id: self.nsxlib.firewall_section.delete(section_id) if ns_group_id: try: self.nsxlib.ns_group.delete(ns_group_id) except Exception: LOG.debug("While cleaning up duplicate sections NSGroup %s " "was not found", ns_group_id) # Ensure global variables are updated self._ensure_default_rules() def _prepare_default_rules(self): ctx = q_context.get_admin_context() # Need a global placeholder as the DB below has a foreign key to # this security group self._ensure_global_sg_placeholder(ctx) self._ensure_default_rules() # Validate if there is a race between processes nsgroup_id, section_id = nsx_db.get_sg_mappings( ctx.session, v3_utils.NSX_V3_OS_DFW_UUID) LOG.debug("Default NSGroup - %s, Section %s", nsgroup_id, section_id) default_ns_group_id = self._default_section_nsgroup.get('id') duplicates = False if nsgroup_id is None or section_id is None: # This means that the DB was not updated with the NSX IDs try: LOG.debug("Updating NSGroup - %s, Section %s", default_ns_group_id, self.default_section) nsx_db.save_sg_mappings(ctx, v3_utils.NSX_V3_OS_DFW_UUID, default_ns_group_id, self.default_section) except Exception: # Another process must have update the DB at the same time # so delete the once that were just created LOG.debug("Concurrent update! Duplicates exist") duplicates = True else: if (section_id != self.default_section): LOG.debug("Section %(nsx)s doesn't match the one in the DB " "%(db)s. Duplicates exist", {'nsx': self.default_section, 'db': section_id}) duplicates = True if (nsgroup_id != default_ns_group_id): LOG.debug("NSGroup %(nsx)s doesn't match the one in the DB " "%(db)s. Duplicates exist", {'nsx': default_ns_group_id, 'db': nsgroup_id}) duplicates = True if duplicates: # deleting the NSX NS group & section found on the NSX backend # which are duplications, and use the ones from the DB self._cleanup_duplicates(default_ns_group_id, self.default_section) @staticmethod def plugin_type(): return projectpluginmap.NsxPlugins.NSX_T @staticmethod def is_tvd_plugin(): return False def spawn_complete(self, resource, event, trigger, payload=None): # Init the FWaaS support with RPC listeners for the original process self._init_fwaas(with_rpc=True) # The rest of this method should run only once, but after init_complete if not self.init_is_complete: self.init_complete(None, None, None) if not self._is_sub_plugin: self.octavia_stats_collector = ( octavia_listener.NSXOctaviaStatisticsCollector( self, self._get_octavia_stats_getter())) def init_complete(self, resource, event, trigger, payload=None): with locking.LockManager.get_lock('plugin-init-complete'): if self.init_is_complete: # Should be called only once per worker return # reinitialize the cluster upon fork for api workers to ensure # each process has its own keepalive loops + state self.nsxlib.reinitialize_cluster(resource, event, trigger, payload=payload) # Init the house keeper self.housekeeper = housekeeper.NsxHousekeeper( hk_ns='vmware_nsx.neutron.nsxv3.housekeeper.jobs', hk_jobs=cfg.CONF.nsx_v3.housekeeping_jobs, hk_readonly=cfg.CONF.nsx_v3.housekeeping_readonly, hk_readonly_jobs=cfg.CONF.nsx_v3.housekeeping_readonly_jobs) # Init octavia listener and endpoints self._init_octavia() # Init the FWaaS support without RPC listeners # for the spawn workers self._init_fwaas(with_rpc=False) self.init_is_complete = True def _init_octavia(self): if self._is_sub_plugin: # The TVD plugin will take care of this return octavia_objects = self._get_octavia_objects() self.octavia_listener = octavia_listener.NSXOctaviaListener( **octavia_objects) def _get_octavia_objects(self): return { 'loadbalancer': loadbalancer_mgr.EdgeLoadBalancerManagerFromDict(), 'listener': listener_mgr.EdgeListenerManagerFromDict(), 'pool': pool_mgr.EdgePoolManagerFromDict(), 'member': member_mgr.EdgeMemberManagerFromDict(), 'healthmonitor': healthmonitor_mgr.EdgeHealthMonitorManagerFromDict(), 'l7policy': l7policy_mgr.EdgeL7PolicyManagerFromDict(), 'l7rule': l7rule_mgr.EdgeL7RuleManagerFromDict()} def _get_octavia_stats_getter(self): return listener_mgr.stats_getter def _init_fwaas(self, with_rpc): if self.fwaas_callbacks: # already initialized return if fwaas_utils.is_fwaas_v2_plugin_enabled(): LOG.info("NSXv3 FWaaS v2 plugin enabled") self.fwaas_callbacks = fwaas_callbacks_v2.Nsxv3FwaasCallbacksV2( with_rpc) def init_availability_zones(self): self._availability_zones_data = nsx_az.NsxV3AvailabilityZones( use_tvd_config=self._is_sub_plugin) def _init_nsx_profiles(self): LOG.debug("Initializing NSX v3 port spoofguard switching profile") if not self._init_port_security_profile(): msg = _("Unable to initialize NSX v3 port spoofguard switching " "profile: %s") % v3_utils.NSX_V3_PSEC_PROFILE_NAME raise nsx_exc.NsxPluginException(err_msg=msg) profile_client = self.nsxlib.switching_profile no_psec_prof = profile_client.find_by_display_name( NSX_V3_NO_PSEC_PROFILE_NAME)[0] self._no_psec_profile_id = profile_client.build_switch_profile_ids( profile_client, no_psec_prof)[0] LOG.debug("Initializing NSX v3 DHCP switching profile") try: self._init_dhcp_switching_profile() except Exception as e: msg = (_("Unable to initialize NSX v3 DHCP switching profile: " "%(id)s. Reason: %(reason)s") % { 'id': v3_utils.NSX_V3_DHCP_PROFILE_NAME, 'reason': str(e)}) raise nsx_exc.NsxPluginException(err_msg=msg) self._mac_learning_profile = None self._mac_learning_disabled_profile = None # create MAC Learning profile try: self._init_mac_learning_profiles() # Only expose the extension if it is supported self.supported_extension_aliases.append(mac_ext.ALIAS) except Exception as e: LOG.warning("Unable to initialize NSX v3 MAC Learning " "profiles: %(name)s. Reason: %(reason)s", {'name': NSX_V3_MAC_LEARNING_PROFILE_NAME, 'reason': e}) no_switch_security_prof = profile_client.find_by_display_name( NSX_V3_NON_VIF_PROFILE)[0] self._no_switch_security = profile_client.build_switch_profile_ids( profile_client, no_switch_security_prof)[0] no_switch_security_prof = profile_client.find_by_display_name( NSX_V3_NON_VIF_ENS_PROFILE)[0] self._no_switch_security_ens = profile_client.build_switch_profile_ids( profile_client, no_switch_security_prof)[0] self.server_ssl_profile = None self.client_ssl_profile = None LOG.debug("Initializing NSX v3 Load Balancer default profiles") try: self._init_lb_profiles() except Exception as e: msg = (_("Unable to initialize NSX v3 lb profiles: " "Reason: %(reason)s") % {'reason': str(e)}) raise nsx_exc.NsxPluginException(err_msg=msg) def _translate_configured_names_to_uuids(self): # If using tags to find the objects, make sure tag scope is configured if (cfg.CONF.nsx_v3.init_objects_by_tags and not cfg.CONF.nsx_v3.search_objects_scope): raise cfg.RequiredOptError("search_objects_scope", group=cfg.OptGroup('nsx_v3')) # Validate and translate native dhcp profiles per az if cfg.CONF.nsx_v3.native_dhcp_metadata: if not cfg.CONF.nsx_v3.dhcp_profile: raise cfg.RequiredOptError("dhcp_profile", group=cfg.OptGroup('nsx_v3')) if not cfg.CONF.nsx_v3.metadata_proxy: raise cfg.RequiredOptError("metadata_proxy", group=cfg.OptGroup('nsx_v3')) # Translate all the uuids in each of the availability search_scope = (cfg.CONF.nsx_v3.search_objects_scope if cfg.CONF.nsx_v3.init_objects_by_tags else None) for az in self.get_azs_list(): az.translate_configured_names_to_uuids( self.nsxlib, search_scope=search_scope) @nsxlib_utils.retry_upon_exception( Exception, max_attempts=cfg.CONF.nsx_v3.retries) def _init_default_section_nsgroup(self): with locking.LockManager.get_lock('nsxv3_init_default_nsgroup'): nsgroup = self._get_default_section_nsgroup() if not nsgroup: # Create a new NSGroup for default section membership_criteria = ( self.nsxlib.ns_group.get_port_tag_expression( common_utils.PORT_SG_SCOPE, NSX_V3_DEFAULT_SECTION)) nsgroup = self.nsxlib.ns_group.create( NSX_V3_FW_DEFAULT_NS_GROUP, 'OS Default Section Port NSGroup', tags=self.nsxlib.build_v3_api_version_tag(), membership_criteria=membership_criteria) return self._get_default_section_nsgroup() def _get_default_section_nsgroup(self): if self._default_section_nsgroup: return self._default_section_nsgroup nsgroups = self.nsxlib.ns_group.find_by_display_name( NSX_V3_FW_DEFAULT_NS_GROUP) return nsgroups[0] if nsgroups else None @nsxlib_utils.retry_upon_exception( Exception, max_attempts=cfg.CONF.nsx_v3.retries) def _init_excluded_port_nsgroup(self): with locking.LockManager.get_lock('nsxv3_excluded_port_nsgroup_init'): nsgroup = self._get_excluded_port_nsgroup() if not nsgroup: # Create a new NSGroup for excluded ports. membership_criteria = ( self.nsxlib.ns_group.get_port_tag_expression( common_utils.PORT_SG_SCOPE, nsxlib_consts.EXCLUDE_PORT)) nsgroup = self.nsxlib.ns_group.create( NSX_V3_EXCLUDED_PORT_NSGROUP_NAME, 'Neutron Excluded Port NSGroup', tags=self.nsxlib.build_v3_api_version_tag(), membership_criteria=membership_criteria) # Add this NSGroup to NSX Exclusion List. self.nsxlib.firewall_section.add_member_to_fw_exclude_list( nsgroup['id'], nsxlib_consts.NSGROUP) return self._get_excluded_port_nsgroup() def _get_excluded_port_nsgroup(self): if self._excluded_port_nsgroup: return self._excluded_port_nsgroup nsgroups = self.nsxlib.ns_group.find_by_display_name( NSX_V3_EXCLUDED_PORT_NSGROUP_NAME) return nsgroups[0] if nsgroups else None def _unsubscribe_callback_events(self): # l3_db explicitly subscribes to the port delete callback. This # callback is unsubscribed here since l3 APIs are handled by # core_plugin instead of an advanced service, in case of NSXv3 plugin, # and the prevention logic is handled by NSXv3 plugin itself. registry.unsubscribe( l3_db.L3_NAT_dbonly_mixin._prevent_l3_port_delete_callback, resources.PORT, events.BEFORE_DELETE) @nsxlib_utils.retry_upon_exception( Exception, max_attempts=cfg.CONF.nsx_v3.retries) def _init_dhcp_switching_profile(self): with locking.LockManager.get_lock('nsxv3_dhcp_profile_init'): if not self._get_dhcp_security_profile(): self.nsxlib.switching_profile.create_dhcp_profile( v3_utils.NSX_V3_DHCP_PROFILE_NAME, 'Neutron DHCP Security Profile', tags=self.nsxlib.build_v3_api_version_tag()) return self._get_dhcp_security_profile() def _get_dhcp_security_profile(self): if hasattr(self, '_dhcp_profile') and self._dhcp_profile: return self._dhcp_profile profile = self.nsxlib.switching_profile.find_by_display_name( v3_utils.NSX_V3_DHCP_PROFILE_NAME) self._dhcp_profile = nsx_resources.SwitchingProfileTypeId( profile_type=(nsx_resources.SwitchingProfileTypes. SWITCH_SECURITY), profile_id=profile[0]['id']) if profile else None return self._dhcp_profile def _init_mac_learning_profiles(self): with locking.LockManager.get_lock('nsxv3_mac_learning_profile_init'): if not self._get_mac_learning_profile(): self.nsxlib.switching_profile.create_mac_learning_profile( NSX_V3_MAC_LEARNING_PROFILE_NAME, 'Neutron MAC Learning Profile', mac_learning_enabled=True, tags=self.nsxlib.build_v3_api_version_tag()) self._get_mac_learning_profile() if not self._get_mac_learning_disabled_profile(): self.nsxlib.switching_profile.create_mac_learning_profile( NSX_V3_MAC_DISABLED_PROFILE_NAME, 'Neutron MAC Learning Disabled Profile', mac_learning_enabled=False, tags=self.nsxlib.build_v3_api_version_tag()) self._get_mac_learning_disabled_profile() def _get_mac_learning_profile(self): if (hasattr(self, '_mac_learning_profile') and self._mac_learning_profile): return self._mac_learning_profile profile = self.nsxlib.switching_profile.find_by_display_name( NSX_V3_MAC_LEARNING_PROFILE_NAME) self._mac_learning_profile = nsx_resources.SwitchingProfileTypeId( profile_type=(nsx_resources.SwitchingProfileTypes. MAC_LEARNING), profile_id=profile[0]['id']) if profile else None return self._mac_learning_profile def _get_mac_learning_disabled_profile(self): if (hasattr(self, '_mac_learning_disabled_profile') and self._mac_learning_disabled_profile): return self._mac_learning_disabled_profile profile = self.nsxlib.switching_profile.find_by_display_name( NSX_V3_MAC_DISABLED_PROFILE_NAME) self._mac_learning_disabled_profile = ( nsx_resources.SwitchingProfileTypeId( profile_type=(nsx_resources.SwitchingProfileTypes. MAC_LEARNING), profile_id=profile[0]['id']) if profile else None) return self._mac_learning_disabled_profile def _init_lb_profiles(self): ssl_c_prof_client = self.nsxlib.load_balancer.client_ssl_profile ssl_s_prof_client = self.nsxlib.load_balancer.server_ssl_profile with locking.LockManager.get_lock('nsxv3_lb_profiles_init'): if not self.client_ssl_profile: profile = ssl_c_prof_client.find_by_display_name( NSX_V3_CLIENT_SSL_PROFILE) if not profile: profile = ssl_c_prof_client.create( NSX_V3_CLIENT_SSL_PROFILE, 'Neutron LB Client SSL Profile', tags=self.nsxlib.build_v3_api_version_tag()) self.client_ssl_profile = profile[0]['id'] if profile else None if not self.server_ssl_profile: profile = ssl_s_prof_client.find_by_display_name( NSX_V3_SERVER_SSL_PROFILE) if not profile: profile = self.nsxlib.load_balancer.server_ssl_profile.create( NSX_V3_SERVER_SSL_PROFILE, 'Neutron LB Server SSL Profile', tags=self.nsxlib.build_v3_api_version_tag()) self.server_ssl_profile = profile[0]['id'] if profile else None def _get_port_security_profile_id(self): return self.nsxlib.switching_profile.build_switch_profile_ids( self.nsxlib.switching_profile, self._psec_profile)[0] def _get_port_security_profile(self): if hasattr(self, '_psec_profile') and self._psec_profile: return self._psec_profile profile = self.nsxlib.switching_profile.find_by_display_name( v3_utils.NSX_V3_PSEC_PROFILE_NAME) self._psec_profile = profile[0] if profile else None return self._psec_profile @nsxlib_utils.retry_upon_exception( Exception, max_attempts=cfg.CONF.nsx_v3.retries) def _init_port_security_profile(self): profile = self._get_port_security_profile() if profile: return profile with locking.LockManager.get_lock('nsxv3_psec_profile_init'): # NOTE(boden): double-checked locking pattern profile = self._get_port_security_profile() if profile: return profile self.nsxlib.switching_profile.create_spoofguard_profile( v3_utils.NSX_V3_PSEC_PROFILE_NAME, 'Neutron Port Security Profile', whitelist_ports=True, whitelist_switches=False, tags=self.nsxlib.build_v3_api_version_tag()) return self._get_port_security_profile() def _init_default_section_rules(self): with locking.LockManager.get_lock('nsxv3_default_section'): section_description = ("This section is handled by OpenStack to " "contain default rules on security-groups.") section_id = self.nsxlib.firewall_section.init_default( NSX_V3_FW_DEFAULT_SECTION, section_description, [self._default_section_nsgroup.get('id')], cfg.CONF.nsx_v3.log_security_groups_blocked_traffic) return section_id def _init_dhcp_metadata(self): if cfg.CONF.nsx_v3.native_dhcp_metadata: if cfg.CONF.dhcp_agent_notification: msg = _("Need to disable dhcp_agent_notification when " "native_dhcp_metadata is enabled") raise nsx_exc.NsxPluginException(err_msg=msg) self._init_native_dhcp() self._init_native_metadata() else: self._setup_dhcp() self._start_rpc_notifiers() def _setup_rpc(self): self.endpoints = [dhcp_rpc.DhcpRpcCallback(), agents_db.AgentExtRpcCallback(), metadata_rpc.MetadataRpcCallback()] def _setup_dhcp(self): """Initialize components to support DHCP.""" self.network_scheduler = importutils.import_object( cfg.CONF.network_scheduler_driver ) self.add_periodic_dhcp_agent_status_check() def _start_rpc_notifiers(self): """Initialize RPC notifiers for agents.""" self.agent_notifiers[const.AGENT_TYPE_DHCP] = ( dhcp_rpc_agent_api.DhcpAgentNotifyAPI() ) def _get_edge_cluster(self, tier0_uuid, router): az = self._get_router_az_obj(router) if az and az._edge_cluster_uuid: return az._edge_cluster_uuid if (not self.tier0_groups_dict.get(tier0_uuid) or not self. tier0_groups_dict[tier0_uuid].get('edge_cluster_uuid')): self.nsxlib.router.validate_tier0(self.tier0_groups_dict, tier0_uuid) tier0_info = self.tier0_groups_dict[tier0_uuid] return tier0_info['edge_cluster_uuid'] def _allow_ens_networks(self): return cfg.CONF.nsx_v3.ens_support def _create_network_at_the_backend(self, context, net_data, az, transparent_vlan): provider_data = self._validate_provider_create( context, net_data, az, self.nsxlib.transport_zone, self.nsxlib.logical_switch, transparent_vlan=transparent_vlan) neutron_net_id = net_data.get('id') or uuidutils.generate_uuid() net_data['id'] = neutron_net_id if (provider_data['is_provider_net'] and provider_data['net_type'] == utils.NsxV3NetworkTypes.NSX_NETWORK): # Network already exists on the NSX backend nsx_id = provider_data['physical_net'] else: # Create network on the backend # update the network name to indicate the neutron id too. net_name = utils.get_name_and_uuid(net_data['name'] or 'network', neutron_net_id) tags = self.nsxlib.build_v3_tags_payload( net_data, resource_type='os-neutron-net-id', project_name=context.tenant_name) admin_state = net_data.get('admin_state_up', True) LOG.debug('create_network: %(net_name)s, %(physical_net)s, ' '%(tags)s, %(admin_state)s, %(vlan_id)s', {'net_name': net_name, 'physical_net': provider_data['physical_net'], 'tags': tags, 'admin_state': admin_state, 'vlan_id': provider_data['vlan_id']}) trunk_vlan_range = None if transparent_vlan: # all vlan tags are allowed for guest vlan trunk_vlan_range = [0, const.MAX_VLAN_TAG] nsx_result = self.nsxlib.logical_switch.create( net_name, provider_data['physical_net'], tags, admin_state=admin_state, vlan_id=provider_data['vlan_id'], description=net_data.get('description'), trunk_vlan_range=trunk_vlan_range) nsx_id = nsx_result['id'] return (provider_data['is_provider_net'], provider_data['net_type'], provider_data['physical_net'], provider_data['vlan_id'], nsx_id) def _is_overlay_network(self, context, network_id): """Return True if this is an overlay network 1. No binding ("normal" overlay networks will have no binding) 2. Geneve network 3. nsx network where the backend network is connected to an overlay TZ """ bindings = nsx_db.get_network_bindings(context.session, network_id) # With NSX plugin, "normal" overlay networks will have no binding if not bindings: # using the default/AZ overlay_tz return True binding = bindings[0] if binding.binding_type == utils.NsxV3NetworkTypes.GENEVE: return True if binding.binding_type == utils.NsxV3NetworkTypes.NSX_NETWORK: # check the backend network # TODO(asarfaty): Keep TZ type in DB to avoid going to the backend ls = self.nsxlib.logical_switch.get(binding.phy_uuid) tz = ls.get('transport_zone_id') if tz: # This call is cached on the nsxlib side backend_type = self.nsxlib.transport_zone.get_transport_type( tz) return (backend_type == self.nsxlib.transport_zone.TRANSPORT_TYPE_OVERLAY) return False def _tier0_validator(self, tier0_uuid): self.nsxlib.router.validate_tier0(self.tier0_groups_dict, tier0_uuid) def _get_nsx_net_tz_id(self, nsx_net): return nsx_net['transport_zone_id'] def create_network(self, context, network): net_data = network['network'] external = net_data.get(extnet_apidef.EXTERNAL) is_external_net = validators.is_attr_set(external) and external is_ddi_network = False tenant_id = net_data['tenant_id'] # validate the availability zone, and get the AZ object az = self._validate_obj_az_on_creation(context, net_data, 'network') self._ensure_default_security_group(context, tenant_id) # Update the transparent vlan if configured vlt = False if extensions.is_extension_supported(self, 'vlan-transparent'): vlt = vlan_apidef.get_vlan_transparent(net_data) self._validate_create_network(context, net_data) if is_external_net: is_provider_net, net_type, physical_net, vlan_id = ( self._validate_external_net_create( net_data, az._default_tier0_router, self._tier0_validator)) nsx_net_id = None is_backend_network = False else: is_provider_net, net_type, physical_net, vlan_id, nsx_net_id = ( self._create_network_at_the_backend(context, net_data, az, vlt)) is_backend_network = True try: rollback_network = False with db_api.CONTEXT_WRITER.using(context): # Create network in Neutron created_net = super(NsxV3Plugin, self).create_network(context, network) self._extension_manager.process_create_network( context, net_data, created_net) if psec.PORTSECURITY not in net_data: net_data[psec.PORTSECURITY] = True self._process_network_port_security_create( context, net_data, created_net) self._process_l3_create(context, created_net, net_data) self._add_az_to_net(context, created_net['id'], net_data) if is_provider_net: # Save provider network fields, needed by get_network() net_bindings = [nsx_db.add_network_binding( context.session, created_net['id'], net_type, physical_net, vlan_id)] self._extend_network_dict_provider(context, created_net, bindings=net_bindings) if is_backend_network: # Add neutron-id <-> nsx-id mapping to the DB # after the network creation is done neutron_net_id = created_net['id'] nsx_db.add_neutron_nsx_network_mapping( context.session, neutron_net_id, nsx_net_id) if extensions.is_extension_supported(self, 'vlan-transparent'): super(NsxV3Plugin, self).update_network(context, created_net['id'], {'network': {'vlan_transparent': vlt}}) rollback_network = True # this extra lookup is necessary to get the # latest db model for the extension functions net_model = self._get_network(context, created_net['id']) resource_extend.apply_funcs('networks', created_net, net_model) if is_backend_network: self._create_net_mp_mdproxy_port( context, created_net, az, nsx_net_id) except Exception: with excutils.save_and_reraise_exception(): # Undo creation on the backend LOG.exception('Failed to create network') if (nsx_net_id and net_type != utils.NsxV3NetworkTypes.NSX_NETWORK): self.nsxlib.logical_switch.delete(nsx_net_id) if (cfg.CONF.nsx_v3.native_dhcp_metadata and is_backend_network and is_ddi_network): # Delete the mdproxy port manually self._delete_nsx_port_by_network(created_net['id']) if rollback_network: super(NsxV3Plugin, self).delete_network( context, created_net['id']) # Update the QoS policy (will affect only future compute ports) qos_com_utils.set_qos_policy_on_new_net( context, net_data, created_net) if net_data.get(qos_consts.QOS_POLICY_ID): LOG.info("QoS Policy %(qos)s will be applied to future compute " "ports of network %(net)s", {'qos': net_data[qos_consts.QOS_POLICY_ID], 'net': created_net['id']}) return created_net def _ens_qos_supported(self): return self.nsxlib.feature_supported( nsxlib_consts.FEATURE_ENS_WITH_QOS) def delete_network(self, context, network_id): if cfg.CONF.nsx_v3.native_dhcp_metadata: self._delete_network_disable_dhcp(context, network_id) nsx_net_id = self._get_network_nsx_id(context, network_id) is_nsx_net = self._network_is_nsx_net(context, network_id) is_ddi_network = self._is_ddi_supported_on_network(context, network_id) # First call DB operation for delete network as it will perform # checks on active ports self._retry_delete_network(context, network_id) if (not self._network_is_external(context, network_id) and not is_nsx_net): # TODO(salv-orlando): Handle backend failure, possibly without # requiring us to un-delete the DB object. For instance, ignore # failures occurring if logical switch is not found self.nsxlib.logical_switch.delete(nsx_net_id) else: if (cfg.CONF.nsx_v3.native_dhcp_metadata and is_nsx_net and is_ddi_network): # Delete the mdproxy port manually self._delete_nsx_port_by_network(network_id) # TODO(berlin): delete subnets public announce on the network def _get_network_nsx_id(self, context, neutron_id): # get the nsx switch id from the DB mapping mappings = nsx_db.get_nsx_switch_ids(context.session, neutron_id) if not mappings or len(mappings) == 0: LOG.debug("Unable to find NSX mappings for neutron " "network %s.", neutron_id) # fallback in case we didn't find the id in the db mapping # This should not happen, but added here in case the network was # created before this code was added. return neutron_id else: return mappings[0] def update_network(self, context, id, network): original_net = super(NsxV3Plugin, self).get_network(context, id) net_data = network['network'] # Neutron does not support changing provider network values utils.raise_if_updates_provider_attributes(net_data) extern_net = self._network_is_external(context, id) is_nsx_net = self._network_is_nsx_net(context, id) # Validate the updated parameters self._validate_update_network(context, id, original_net, net_data) updated_net = super(NsxV3Plugin, self).update_network(context, id, network) self._extension_manager.process_update_network(context, net_data, updated_net) if psec.PORTSECURITY in net_data: self._process_network_port_security_update( context, net_data, updated_net) self._process_l3_update(context, updated_net, network['network']) self._extend_network_dict_provider(context, updated_net) if (not extern_net and not is_nsx_net and ('name' in net_data or 'admin_state_up' in net_data or 'description' in net_data)): try: # get the nsx switch id from the DB mapping nsx_id = self._get_network_nsx_id(context, id) net_name = net_data.get('name', original_net.get('name')) or 'network' self.nsxlib.logical_switch.update( nsx_id, name=utils.get_name_and_uuid(net_name, id), admin_state=net_data.get('admin_state_up'), description=net_data.get('description')) # Backend does not update the admin state of the ports on # the switch when the switch's admin state changes. Do not # update the admin state of the ports in neutron either. except nsx_lib_exc.ManagerError: LOG.exception("Unable to update NSX backend, rolling " "back changes on neutron") with excutils.save_and_reraise_exception(): # remove the AZ from the network before rollback because # it is read only, and breaks the rollback if 'availability_zone_hints' in original_net: del original_net['availability_zone_hints'] super(NsxV3Plugin, self).update_network( context, id, {'network': original_net}) if qos_consts.QOS_POLICY_ID in net_data: # attach the policy to the network in neutron DB #(will affect only future compute ports) qos_com_utils.update_network_policy_binding( context, id, net_data[qos_consts.QOS_POLICY_ID]) if net_data[qos_consts.QOS_POLICY_ID]: LOG.info("QoS Policy %(qos)s will be applied to future " "compute ports of network %(net)s", {'qos': net_data[qos_consts.QOS_POLICY_ID], 'net': id}) if not extern_net and not is_nsx_net: # update the network name & attributes in related NSX objects: if 'name' in net_data or 'dns_domain' in net_data: # update the dhcp server after finding it by tags self._update_dhcp_server_on_net_update(context, updated_net) if 'name' in net_data: # update the mdproxy port after finding it by tags self._update_mdproxy_port_on_net_update(context, updated_net) # update the DHCP port after finding it by tags self._update_dhcp_port_on_net_update(context, updated_net) return updated_net def _update_dhcp_port_on_net_update(self, context, network): """Update the NSX DHCP port when the neutron network changes""" dhcp_service = nsx_db.get_nsx_service_binding( context.session, network['id'], nsxlib_consts.SERVICE_DHCP) if dhcp_service and dhcp_service['port_id']: # get the neutron port id and search by it port_tag = [{'scope': 'os-neutron-dport-id', 'tag': dhcp_service['port_id']}] dhcpports = self.nsxlib.search_by_tags( tags=port_tag, resource_type=self.nsxlib.logical_port.resource_type) if dhcpports['results']: # There should be only 1 dhcp port # update the port name by the new network name name = self._get_dhcp_port_name(network['name'], network['id']) try: self.nsxlib.logical_port.update( dhcpports['results'][0]['id'], False, name=name, attachment_type=False) except Exception as e: LOG.warning("Failed to update network %(id)s DHCP port " "on the NSX: %(e)s", {'id': network['id'], 'e': e}) def _update_mdproxy_port_on_net_update(self, context, network): """Update the NSX MDPROXY port when the neutron network changes""" net_tag = [{'scope': 'os-neutron-net-id', 'tag': network['id']}] # find the logical port by the neutron network id & attachment mdproxy_list = self.nsxlib.search_by_tags( tags=net_tag, resource_type=self.nsxlib.logical_port.resource_type) if not mdproxy_list['results']: return for port in mdproxy_list['results']: if (port.get('attachment') and port['attachment'].get('attachment_type') == 'METADATA_PROXY'): # update the port name by the new network name name = self._get_mdproxy_port_name(network['name'], network['id']) try: self.nsxlib.logical_port.update( port['id'], False, name=name, attachment_type=False) except Exception as e: LOG.warning("Failed to update network %(id)s mdproxy port " "on the NSX: %(e)s", {'id': network['id'], 'e': e}) # There should be only 1 mdproxy port so it is safe to return return def _update_dhcp_server_on_net_update(self, context, network): """Update the NSX DHCP server when the neutron network changes""" net_tag = [{'scope': 'os-neutron-net-id', 'tag': network['id']}] # Find the DHCP server by the neutron network tag dhcp_srv_list = self.nsxlib.search_by_tags( tags=net_tag, resource_type=self.nsxlib.dhcp_server.resource_type) if dhcp_srv_list['results']: # Calculate the new name and domain by the network data dhcp_name = self.nsxlib.native_dhcp.build_server_name( network['name'], network['id']) az = self.get_network_az_by_net_id(context, network['id']) domain_name = common_utils.get_network_dns_domain( az, network) try: # There should be only 1 dhcp server # Update its name and domain self.nsxlib.dhcp_server.update( dhcp_srv_list['results'][0]['id'], name=dhcp_name, domain_name=domain_name) except Exception as e: LOG.warning("Failed to update network %(id)s dhcp server on " "the NSX: %(e)s", {'id': network['id'], 'e': e}) @nsx_plugin_common.api_replay_mode_wrapper def create_subnet(self, context, subnet): return self._create_subnet_with_mp_dhcp(context, subnet) def delete_subnet(self, context, subnet_id): # Call common V3 code to delete the subnet self.delete_subnet_with_mp_dhcp(context, subnet_id) def update_subnet(self, context, subnet_id, subnet): updated_subnet = self.update_subnet_with_mp_dhcp( context, subnet_id, subnet) if (cfg.CONF.nsx_v3.metadata_on_demand and not self._has_native_dhcp_metadata()): # If enable_dhcp is changed on a subnet attached to a router, # update internal metadata network accordingly. if 'enable_dhcp' in subnet['subnet']: port_filters = {'device_owner': const.ROUTER_INTERFACE_OWNERS, 'fixed_ips': {'subnet_id': [subnet_id]}} ports = self.get_ports(context, filters=port_filters) for port in ports: nsx_rpc.handle_router_metadata_access( self, context, port['device_id'], interface=not updated_subnet['enable_dhcp']) return updated_subnet def _build_address_bindings(self, port): address_bindings = [] for fixed_ip in port['fixed_ips']: address_bindings.append(nsx_resources.PacketAddressClassifier( fixed_ip['ip_address'], port['mac_address'], None)) for pair in port.get(addr_apidef.ADDRESS_PAIRS): address_bindings.append(nsx_resources.PacketAddressClassifier( pair['ip_address'], pair['mac_address'], None)) return address_bindings def _get_qos_profile_id(self, context, policy_id): switch_profile_id = nsx_db.get_switch_profile_by_qos_policy( context.session, policy_id) nsxlib_qos = self.nsxlib.qos_switching_profile qos_profile = nsxlib_qos.get(switch_profile_id) if qos_profile: profile_ids = nsxlib_qos.build_switch_profile_ids( self.nsxlib.switching_profile, qos_profile) if profile_ids and len(profile_ids) > 0: # We have only 1 QoS profile, so this array is of size 1 return profile_ids[0] # Didn't find it err_msg = _("Could not find QoS switching profile for policy " "%s") % policy_id LOG.error(err_msg) raise n_exc.InvalidInput(error_message=err_msg) def get_lport_tags(self, secgroups): if len(secgroups) > nsxlib_utils.MAX_NSGROUPS_CRITERIA_TAGS: raise nsx_exc.NumberOfNsgroupCriteriaTagsReached( max_num=nsxlib_utils.MAX_NSGROUPS_CRITERIA_TAGS) tags = [] for sg in secgroups: tags = nsxlib_utils.add_v3_tag( tags, common_utils.PORT_SG_SCOPE, sg) if not tags: # This port shouldn't be associated with any security-group tags = [{'scope': common_utils.PORT_SG_SCOPE, 'tag': None}] return tags def _create_port_at_the_backend(self, context, port_data, l2gw_port_check, psec_is_on, is_ens_tz_port): device_owner = port_data.get('device_owner') device_id = port_data.get('device_id') if device_owner == const.DEVICE_OWNER_DHCP: resource_type = 'os-neutron-dport-id' elif device_owner == l3_db.DEVICE_OWNER_ROUTER_INTF: resource_type = 'os-neutron-rport-id' else: resource_type = 'os-neutron-port-id' tags = self.nsxlib.build_v3_tags_payload( port_data, resource_type=resource_type, project_name=context.tenant_name) resource_type = self._get_resource_type_for_device_id( device_owner, device_id) if resource_type: tags = nsxlib_utils.add_v3_tag(tags, resource_type, device_id) if self._is_excluded_port(device_owner, psec_is_on): tags.append({'scope': common_utils.PORT_SG_SCOPE, 'tag': nsxlib_consts.EXCLUDE_PORT}) else: # If port has no security-groups then we don't need to add any # security criteria tag. if port_data[ext_sg.SECURITYGROUPS]: tags += self.get_lport_tags( port_data[ext_sg.SECURITYGROUPS] + port_data[provider_sg.PROVIDER_SECURITYGROUPS]) # Add port to the default list if (device_owner != l3_db.DEVICE_OWNER_ROUTER_INTF and device_owner != const.DEVICE_OWNER_DHCP): tags.append({'scope': common_utils.PORT_SG_SCOPE, 'tag': NSX_V3_DEFAULT_SECTION}) address_bindings = (self._build_address_bindings(port_data) if psec_is_on else []) if not device_owner: # no attachment attachment_type = None vif_uuid = None elif l2gw_port_check: # Change the attachment type for L2 gateway owned ports. # NSX backend requires the vif id be set to bridge endpoint id # for ports plugged into a Bridge Endpoint. # Also set port security to False, since L2GW port does not have # an IP address. vif_uuid = device_id attachment_type = device_owner psec_is_on = False elif device_owner == l3_db.DEVICE_OWNER_ROUTER_INTF: # no attachment change attachment_type = False vif_uuid = False else: # default attachment attachment_type = nsxlib_consts.ATTACHMENT_VIF vif_uuid = port_data['id'] profiles = [] # Add availability zone profiles first (so that specific profiles will # override them) port_az = self.get_network_az_by_net_id(context, port_data['network_id']) if port_az.switching_profiles_objs: profiles.extend(port_az.switching_profiles_objs) force_mac_learning = False if psec_is_on: address_pairs = port_data.get(addr_apidef.ADDRESS_PAIRS) if validators.is_attr_set(address_pairs) and address_pairs: # Force mac learning profile to allow address pairs to work force_mac_learning = True profiles.append(self._get_port_security_profile_id()) else: if is_ens_tz_port: profiles.append(self._no_switch_security_ens) else: profiles.append(self._no_switch_security) if device_owner == const.DEVICE_OWNER_DHCP: if not cfg.CONF.nsx_v3.native_dhcp_metadata: profiles.append(self._dhcp_profile) # Add QoS switching profile, if exists qos_policy_id = self._get_port_qos_policy_id( context, None, port_data) if qos_policy_id: qos_profile_id = self._get_qos_profile_id(context, qos_policy_id) profiles.append(qos_profile_id) # Add mac_learning profile if it exists and is configured port_mac_learning = ( validators.is_attr_set(port_data.get(mac_ext.MAC_LEARNING)) and port_data.get(mac_ext.MAC_LEARNING) is True) if self._mac_learning_profile: if force_mac_learning or port_mac_learning: profiles.append(self._mac_learning_profile) if is_ens_tz_port: if self._no_switch_security_ens not in profiles: profiles.append(self._no_switch_security_ens) else: if self._no_switch_security not in profiles: profiles.append(self._no_switch_security) else: profiles.append(self._mac_learning_disabled_profile) name = self._build_port_name(context, port_data) nsx_net_id = self._get_network_nsx_id(context, port_data['network_id']) try: result = self.nsxlib.logical_port.create( nsx_net_id, vif_uuid, tags=tags, name=name, admin_state=port_data['admin_state_up'], address_bindings=address_bindings, attachment_type=attachment_type, switch_profile_ids=profiles, description=port_data.get('description')) except nsx_lib_exc.ManagerError as inst: # we may fail if the QoS is not supported for this port # (for example - transport zone with KVM) LOG.exception("Unable to create port on the backend: %s", inst) if inst.error_code == 8407: raise nsx_exc.BridgeEndpointAttachmentInUse( network_id=port_data['network_id']) msg = _("Unable to create port on the backend") raise nsx_exc.NsxPluginException(err_msg=msg) # Attach the policy to the port in the neutron DB if qos_policy_id: qos_com_utils.update_port_policy_binding(context, port_data['id'], qos_policy_id) return result def _get_net_tz(self, context, net_id): bindings = nsx_db.get_network_bindings(context.session, net_id) if bindings: bind_type = bindings[0].binding_type if bind_type == utils.NsxV3NetworkTypes.NSX_NETWORK: # If it is NSX network, return the TZ of the backend LS mappings = nsx_db.get_nsx_switch_ids(context.session, net_id) if mappings and mappings[0]: nsx_net = self.nsxlib.logical_switch.get(mappings[0]) return nsx_net.get('transport_zone_id') elif bind_type == utils.NetworkTypes.L3_EXT: # External network has tier0 as phy_uuid return else: return bindings[0].phy_uuid else: # Get the default one for the network AZ az = self.get_network_az_by_net_id(context, net_id) return az._default_overlay_tz_uuid def _is_ens_tz(self, tz_id): # This call is cached on the nsxlib side mode = self.nsxlib.transport_zone.get_host_switch_mode(tz_id) return mode == self.nsxlib.transport_zone.HOST_SWITCH_MODE_ENS def _has_native_dhcp_metadata(self): return cfg.CONF.nsx_v3.native_dhcp_metadata def _assert_on_dhcp_relay_without_router(self, context, port_data, original_port=None): # Prevent creating/updating port with device owner prefix 'compute' # on a subnet with dhcp relay but no router. if not original_port: original_port = port_data device_owner = port_data.get('device_owner') if (device_owner is None or not device_owner.startswith(const.DEVICE_OWNER_COMPUTE_PREFIX)): # not a compute port return if not self.get_network_az_by_net_id( context, original_port['network_id']).dhcp_relay_service: # No dhcp relay for the net of this port return # get the subnet id from the fixed ips of the port if 'fixed_ips' in port_data and port_data['fixed_ips']: subnets = self._get_subnets_for_fixed_ips_on_port(context, port_data) elif 'fixed_ips' in original_port and original_port['fixed_ips']: subnets = self._get_subnets_for_fixed_ips_on_port(context, original_port) else: return # check only dhcp enabled subnets subnets = (subnet for subnet in subnets if subnet['enable_dhcp']) if not subnets: return subnet_ids = (subnet['id'] for subnet in subnets) # check if the subnet is attached to a router interfaces = self._get_network_interface_ports( context.elevated(), original_port['network_id']) for interface in interfaces: for fixed_ip in interface['fixed_ips']: if fixed_ip['subnet_id'] in subnet_ids: # Router exists - validation passed return err_msg = _("Neutron is configured with DHCP_Relay but no router " "connected to the subnet") LOG.warning(err_msg) raise n_exc.InvalidInput(error_message=err_msg) def base_create_port(self, context, port): neutron_db = super(NsxV3Plugin, self).create_port(context, port) self._extension_manager.process_create_port( context, port['port'], neutron_db) return neutron_db def create_port(self, context, port, l2gw_port_check=False): port_data = port['port'] # validate the new port parameters self._validate_create_port(context, port_data) self._assert_on_dhcp_relay_without_router(context, port_data) is_ens_tz_port = self._is_ens_tz_port(context, port_data) is_external_net = self._network_is_external( context, port_data['network_id']) direct_vnic_type = self._validate_port_vnic_type( context, port_data, port_data['network_id'], projectpluginmap.NsxPlugins.NSX_T) # Do this outside of the context writer scope so it can overcome # failures if port_data.get('tenant_id'): self._ensure_default_security_group(context, port_data['tenant_id']) with db_api.CONTEXT_WRITER.using(context): neutron_db = self.base_create_port(context, port) port["port"].update(neutron_db) self.fix_direct_vnic_port_sec(direct_vnic_type, port_data) (is_psec_on, has_ip, sgids, psgids) = ( self._create_port_preprocess_security(context, port, port_data, neutron_db, is_ens_tz_port)) self._process_portbindings_create_and_update( context, port['port'], port_data, vif_type=self._vif_type_by_vnic_type(direct_vnic_type)) self._process_port_create_extra_dhcp_opts( context, port_data, port_data.get(ext_edo.EXTRADHCPOPTS)) # handle adding security groups to port self._process_port_create_security_group( context, port_data, sgids) self._process_port_create_provider_security_group( context, port_data, psgids) # add provider groups to other security groups list. # sgids is a set() so we need to | it in. if psgids: sgids = list(set(sgids) | set(psgids)) # Handle port mac learning if validators.is_attr_set(port_data.get(mac_ext.MAC_LEARNING)): # Make sure mac_learning and port sec are not both enabled if port_data.get(mac_ext.MAC_LEARNING) and is_psec_on: msg = _('Mac learning requires that port security be ' 'disabled') LOG.error(msg) raise n_exc.InvalidInput(error_message=msg) # save the mac learning value in the DB self._create_mac_learning_state(context, port_data) elif mac_ext.MAC_LEARNING in port_data: # This is due to the fact that the default is # ATTR_NOT_SPECIFIED port_data.pop(mac_ext.MAC_LEARNING) # Operations to backend should be done outside of DB transaction. # NOTE(arosen): ports on external networks are nat rules and do # not result in ports on the backend. if not is_external_net: try: lport = self._create_port_at_the_backend( context, port_data, l2gw_port_check, is_psec_on, is_ens_tz_port) except Exception as e: with excutils.save_and_reraise_exception(): LOG.error('Failed to create port %(id)s on NSX ' 'backend. Exception: %(e)s', {'id': neutron_db['id'], 'e': e}) self._cleanup_port(context, neutron_db['id'], None) try: net_id = self._get_network_nsx_id( context, port_data['network_id']) nsx_db.add_neutron_nsx_port_mapping( context.session, neutron_db['id'], net_id, lport['id']) except Exception as e: with excutils.save_and_reraise_exception(): LOG.debug('Failed to update mapping %s on NSX ' 'backend. Reverting port creation. ' 'Exception: %s', neutron_db['id'], e) self._cleanup_port(context, neutron_db['id'], lport['id']) # this extra lookup is necessary to get the # latest db model for the extension functions port_model = self._get_port(context, port_data['id']) resource_extend.apply_funcs('ports', port_data, port_model) self._extend_nsx_port_dict_binding(context, port_data) self._remove_provider_security_groups_from_list(port_data) # Add Mac/IP binding to native DHCP server and neutron DB. if cfg.CONF.nsx_v3.native_dhcp_metadata: try: self._add_port_mp_dhcp_binding(context, port_data) except nsx_lib_exc.ManagerError: # Rollback create port self.delete_port(context, port_data['id'], force_delete_dhcp=True) msg = _('Unable to create port. Please contact admin') LOG.exception(msg) raise nsx_exc.NsxPluginException(err_msg=msg) if not cfg.CONF.nsx_v3.native_dhcp_metadata: nsx_rpc.handle_port_metadata_access(self, context, neutron_db) kwargs = {'context': context, 'port': neutron_db} registry.notify(resources.PORT, events.AFTER_CREATE, self, **kwargs) return port_data def _pre_delete_port_check(self, context, port_id, l2gw_port_check): """Perform checks prior to deleting a port.""" try: # Send delete port notification to any interested service plugin registry.publish( resources.PORT, events.BEFORE_DELETE, self, payload=events.DBEventPayload( context, resource_id=port_id, metadata={'port_check': l2gw_port_check})) except callback_exc.CallbackFailure as e: if len(e.errors) == 1: raise e.errors[0].error raise n_exc.ServicePortInUse(port_id=port_id, reason=e) def delete_port(self, context, port_id, l3_port_check=True, l2gw_port_check=True, force_delete_dhcp=False, force_delete_vpn=False): # if needed, check to see if this is a port owned by # a l2 gateway. If so, we should prevent deletion here self._pre_delete_port_check(context, port_id, l2gw_port_check) # if needed, check to see if this is a port owned by # a l3 router. If so, we should prevent deletion here if l3_port_check: self.prevent_l3_port_deletion(context, port_id) port = self.get_port(context, port_id) # Prevent DHCP port deletion if native support is enabled if (cfg.CONF.nsx_v3.native_dhcp_metadata and not force_delete_dhcp and port['device_owner'] in [const.DEVICE_OWNER_DHCP]): msg = (_('Can not delete DHCP port %s') % port['id']) raise n_exc.BadRequest(resource='port', msg=msg) if not force_delete_vpn: self._assert_on_vpn_port_change(port) if not self._network_is_external(context, port['network_id']): _net_id, nsx_port_id = nsx_db.get_nsx_switch_and_port_id( context.session, port_id) self.nsxlib.logical_port.delete(nsx_port_id) self.disassociate_floatingips(context, port_id) # Remove Mac/IP binding from native DHCP server and neutron DB. if cfg.CONF.nsx_v3.native_dhcp_metadata: self._delete_port_mp_dhcp_binding(context, port) else: nsx_rpc.handle_port_metadata_access(self, context, port, is_delete=True) super(NsxV3Plugin, self).delete_port(context, port_id) def _get_resource_type_for_device_id(self, device_owner, device_id): if device_owner in const.ROUTER_INTERFACE_OWNERS: return 'os-router-uuid' elif device_owner.startswith(const.DEVICE_OWNER_COMPUTE_PREFIX): return 'os-instance-uuid' def _update_port_on_backend(self, context, lport_id, original_port, updated_port, address_bindings, switch_profile_ids, is_ens_tz_port): original_device_owner = original_port.get('device_owner') original_device_id = original_port.get('device_id') updated_device_owner = updated_port.get('device_owner') updated_device_id = updated_port.get('device_id') tags_update = [] if original_device_id != updated_device_id: # Determine if we need to update or drop the tag. If the # updated_device_id exists then the tag will be updated. This # is done using the updated port. If the updated_device_id does # not exist then we need to get the original resource type # from original_device_owner. This enables us to drop the tag. if updated_device_id: resource_type = self._get_resource_type_for_device_id( updated_device_owner, updated_device_id) else: resource_type = self._get_resource_type_for_device_id( original_device_owner, updated_device_id) if resource_type: tags_update = nsxlib_utils.add_v3_tag( tags_update, resource_type, updated_device_id) if updated_device_owner in (original_device_owner, l3_db.DEVICE_OWNER_ROUTER_INTF, nsxlib_consts.BRIDGE_ENDPOINT): # no attachment change attachment_type = False vif_uuid = False elif updated_device_owner: # default attachment attachment_type = nsxlib_consts.ATTACHMENT_VIF vif_uuid = updated_port['id'] else: # no attachment attachment_type = None vif_uuid = None name = self._build_port_name(context, updated_port) # Update exclude list if necessary updated_ps = updated_port.get('port_security_enabled') updated_excluded = self._is_excluded_port(updated_device_owner, updated_ps) original_ps = original_port.get('port_security_enabled') original_excluded = self._is_excluded_port(original_device_owner, original_ps) if updated_excluded != original_excluded: if updated_excluded: tags_update.append({'scope': common_utils.PORT_SG_SCOPE, 'tag': nsxlib_consts.EXCLUDE_PORT}) else: tags_update.append({'scope': common_utils.PORT_SG_SCOPE, 'tag': None}) tags_update += self.get_lport_tags( updated_port.get(ext_sg.SECURITYGROUPS, []) + updated_port.get(provider_sg.PROVIDER_SECURITYGROUPS, [])) # Only set the default section tag if there is no port security if not updated_excluded: tags_update.append({'scope': common_utils.PORT_SG_SCOPE, 'tag': NSX_V3_DEFAULT_SECTION}) else: # Ensure that the 'exclude' tag is set tags_update.append({'scope': common_utils.PORT_SG_SCOPE, 'tag': nsxlib_consts.EXCLUDE_PORT}) # Add availability zone profiles first (so that specific profiles will # override them) port_az = self.get_network_az_by_net_id(context, updated_port['network_id']) if port_az.switching_profiles_objs: switch_profile_ids = (port_az.switching_profiles_objs + switch_profile_ids) # Update the DHCP profile if (updated_device_owner == const.DEVICE_OWNER_DHCP and not cfg.CONF.nsx_v3.native_dhcp_metadata): switch_profile_ids.append(self._dhcp_profile) # Update QoS switch profile qos_policy_id, qos_profile_id = self._get_port_qos_ids( context, original_port, updated_port) if qos_profile_id is not None: switch_profile_ids.append(qos_profile_id) psec_is_on = self._get_port_security_profile_id() in switch_profile_ids address_pairs = updated_port.get(addr_apidef.ADDRESS_PAIRS) force_mac_learning = ( validators.is_attr_set(address_pairs) and address_pairs and psec_is_on) port_mac_learning = updated_port.get(mac_ext.MAC_LEARNING) is True # Add mac_learning profile if it exists and is configured if self._mac_learning_profile: if force_mac_learning or port_mac_learning: switch_profile_ids.append(self._mac_learning_profile) if is_ens_tz_port: if self._no_switch_security_ens not in switch_profile_ids: switch_profile_ids.append(self._no_switch_security_ens) else: if self._no_switch_security not in switch_profile_ids: switch_profile_ids.append(self._no_switch_security) else: switch_profile_ids.append(self._mac_learning_disabled_profile) try: self.nsxlib.logical_port.update( lport_id, vif_uuid, name=name, attachment_type=attachment_type, admin_state=updated_port.get('admin_state_up'), address_bindings=address_bindings, switch_profile_ids=switch_profile_ids, tags_update=tags_update, description=updated_port.get('description')) except nsx_lib_exc.ManagerError as inst: # we may fail if the QoS is not supported for this port # (for example - transport zone with KVM) LOG.exception("Unable to update port on the backend: %s", inst) msg = _("Unable to update port on the backend") raise nsx_exc.NsxPluginException(err_msg=msg) # Attach/Detach the QoS policies to the port in the neutron DB qos_com_utils.update_port_policy_binding(context, updated_port['id'], qos_policy_id) def _get_port_qos_ids(self, context, original_port, updated_port): qos_policy_id = self._get_port_qos_policy_id( context, original_port, updated_port) profile_id = None if qos_policy_id is not None: profile_id = self._get_qos_profile_id(context, qos_policy_id) return qos_policy_id, profile_id def update_port(self, context, id, port): with db_api.CONTEXT_WRITER.using(context): # get the original port, and keep it honest as it is later used # for notifications original_port = super(NsxV3Plugin, self).get_port(context, id) self._extend_get_port_dict_qos_and_binding(context, original_port) self._remove_provider_security_groups_from_list(original_port) port_data = port['port'] validate_port_sec = self._should_validate_port_sec_on_update_port( port_data) nsx_lswitch_id, nsx_lport_id = nsx_db.get_nsx_switch_and_port_id( context.session, id) # Validate the changes self._validate_update_port(context, id, original_port, port_data) self._assert_on_dhcp_relay_without_router(context, port_data, original_port) is_ens_tz_port = self._is_ens_tz_port(context, original_port) direct_vnic_type = self._validate_port_vnic_type( context, port_data, original_port['network_id']) # Update the neutron port updated_port = super(NsxV3Plugin, self).update_port(context, id, port) self._extension_manager.process_update_port(context, port_data, updated_port) # copy values over - except fixed_ips as # they've already been processed port_data.pop('fixed_ips', None) updated_port.update(port_data) updated_port = self._update_port_preprocess_security( context, port, id, updated_port, is_ens_tz_port, validate_port_sec=validate_port_sec, direct_vnic_type=direct_vnic_type) self._update_extra_dhcp_opts_on_port(context, id, port, updated_port) sec_grp_updated = self.update_security_group_on_port( context, id, port, original_port, updated_port) self._process_port_update_provider_security_group( context, port, original_port, updated_port) (port_security, has_ip) = self._determine_port_security_and_has_ip( context, updated_port) self._process_portbindings_create_and_update( context, port_data, updated_port, vif_type=self._vif_type_by_vnic_type(direct_vnic_type)) self._extend_nsx_port_dict_binding(context, updated_port) mac_learning_state = updated_port.get(mac_ext.MAC_LEARNING) if mac_learning_state is not None: if port_security and mac_learning_state: msg = _('Mac learning requires that port security be ' 'disabled') LOG.error(msg) raise n_exc.InvalidInput(error_message=msg) self._update_mac_learning_state(context, id, mac_learning_state) self._remove_provider_security_groups_from_list(updated_port) address_bindings = self._build_address_bindings(updated_port) if port_security and address_bindings: switch_profile_ids = [self._get_port_security_profile_id()] else: switch_profile_ids = [self._no_psec_profile_id] if is_ens_tz_port: switch_profile_ids.append(self._no_switch_security_ens) else: switch_profile_ids.append(self._no_switch_security) address_bindings = [] # update the port in the backend, only if it exists in the DB # (i.e not external net) if nsx_lport_id is not None: try: self._update_port_on_backend(context, nsx_lport_id, original_port, updated_port, address_bindings, switch_profile_ids, is_ens_tz_port) except (nsx_lib_exc.ManagerError, nsx_lib_exc.SecurityGroupMaximumCapacityReached) as e: # In case if there is a failure on NSX-v3 backend, rollback the # previous update operation on neutron side. LOG.exception("Unable to update NSX backend, rolling back " "changes on neutron") with excutils.save_and_reraise_exception(reraise=False): with db_api.CONTEXT_WRITER.using(context): self._revert_neutron_port_update( context, id, original_port, updated_port, port_security, sec_grp_updated) # NOTE(arosen): this is to translate between nsxlib # exceptions and the plugin exceptions. This should be # later refactored. if (e.__class__ is nsx_lib_exc.SecurityGroupMaximumCapacityReached): raise nsx_exc.SecurityGroupMaximumCapacityReached( err_msg=e.msg) else: raise e # Update DHCP bindings. if cfg.CONF.nsx_v3.native_dhcp_metadata: self._update_port_mp_dhcp_binding( context, original_port, updated_port) # Make sure the port revision is updated if 'revision_number' in updated_port: port_model = self._get_port(context, id) updated_port['revision_number'] = port_model.revision_number # Notifications must be sent after the above transaction is complete kwargs = { 'context': context, 'port': updated_port, 'mac_address_updated': False, 'original_port': original_port, } registry.notify(resources.PORT, events.AFTER_UPDATE, self, **kwargs) return updated_port def _extend_get_port_dict_qos_and_binding(self, context, port): # Not using the register api for this because we need the context self._extend_nsx_port_dict_binding(context, port) self._extend_qos_port_dict_binding(context, port) def get_port(self, context, id, fields=None): port = super(NsxV3Plugin, self).get_port(context, id, fields=None) self._extend_get_port_dict_qos_and_binding(context, port) self._remove_provider_security_groups_from_list(port) return db_utils.resource_fields(port, fields) def get_ports(self, context, filters=None, fields=None, sorts=None, limit=None, marker=None, page_reverse=False): filters = filters or {} self._update_filters_with_sec_group(context, filters) with db_api.CONTEXT_READER.using(context): ports = ( super(NsxV3Plugin, self).get_ports( context, filters, fields, sorts, limit, marker, page_reverse)) self._log_get_ports(ports, filters) # Add port extensions for port in ports[:]: self._extend_get_port_dict_qos_and_binding(context, port) self._remove_provider_security_groups_from_list(port) return (ports if not fields else [db_utils.resource_fields(port, fields) for port in ports]) def _validate_router_tz(self, context, tier0_uuid, subnets): # make sure the related GW (Tier0 router) belongs to the same TZ # as the subnets attached to the Tier1 router if not subnets: return tier0_tzs = self.nsxlib.router.get_tier0_router_tz(tier0_uuid) if not tier0_tzs: return for sub in subnets: tz_uuid = self._get_net_tz(context, sub['network_id']) if tz_uuid not in tier0_tzs: msg = (_("Tier0 router %(rtr)s transport zone should match " "transport zone %(tz)s of the network %(net)s") % { 'rtr': tier0_uuid, 'tz': tz_uuid, 'net': sub['network_id']}) raise n_exc.InvalidInput(error_message=msg) def verify_sr_at_backend(self, context, router_id): nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) return self.nsxlib.router.has_service_router(nsx_router_id) def service_router_has_services(self, context, router_id): router = self._get_router(context, router_id) snat_exist = router.enable_snat lb_exist = self.service_router_has_loadbalancers(context, router_id) fw_exist = self._router_has_edge_fw_rules(context, router) if snat_exist or lb_exist or fw_exist: return True return snat_exist or lb_exist or fw_exist def service_router_has_loadbalancers(self, context, router_id): nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) return nsx_db.has_nsx_lbaas_loadbalancer_binding_by_router( context.session, nsx_router_id) def create_service_router(self, context, router_id, router=None, update_firewall=True): """Create a service router and enable standby relocation""" if not router: router = self._get_router(context, router_id) tier0_uuid = self._get_tier0_uuid_by_router(context, router) if not tier0_uuid: err_msg = (_("Cannot create service router for %s without a " "gateway") % router_id) raise n_exc.InvalidInput(error_message=err_msg) edge_cluster_uuid = self._get_edge_cluster(tier0_uuid, router) nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) self.nsxlib.logical_router.update( nsx_router_id, edge_cluster_id=edge_cluster_uuid, enable_standby_relocation=True) LOG.info("Created service router for %s (NSX logical router %s)", router_id, nsx_router_id) # update firewall rules (there might be FW group waiting for a # service router) if update_firewall: self.update_router_firewall(context, router_id) def delete_service_router(self, context, router_id): nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) self.nsxlib.router.change_edge_firewall_status( nsx_router_id, nsxlib_consts.FW_DISABLE) self.nsxlib.logical_router.update( nsx_router_id, edge_cluster_id=None, enable_standby_relocation=False) LOG.info("Deleted service router for %s (NSX logical router %s)", router_id, nsx_router_id) def _update_router_gw_info(self, context, router_id, info): router = self._get_router(context, router_id) org_tier0_uuid = self._get_tier0_uuid_by_router(context, router) org_enable_snat = router.enable_snat orgaddr, orgmask, _orgnexthop = ( self._get_external_attachment_info( context, router)) router_subnets = self._load_router_subnet_cidrs_from_db( context.elevated(), router_id) self._validate_router_gw_and_tz(context, router_id, info, org_enable_snat, router_subnets) # Interface subnets cannot overlap with the GW external subnet if info and info.get('network_id'): self._validate_gw_overlap_interfaces( context, info['network_id'], [sub['network_id'] for sub in router_subnets]) # TODO(berlin): For nonat use case, we actually don't need a gw port # which consumes one external ip. But after looking at the DB logic # and we need to make a big change so don't touch it at present. super(NsxV3Plugin, self)._update_router_gw_info( context, router_id, info, router=router) new_tier0_uuid = self._get_tier0_uuid_by_router(context, router) new_enable_snat = router.enable_snat newaddr, newmask, _newnexthop = ( self._get_external_attachment_info( context, router)) nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) lb_exist = nsx_db.has_nsx_lbaas_loadbalancer_binding_by_router( context.session, nsx_router_id) fw_exist = self._router_has_edge_fw_rules(context, router) tier1_services_exist = lb_exist or fw_exist sr_currently_exists = self.verify_sr_at_backend(context, router_id) actions = self._get_update_router_gw_actions( org_tier0_uuid, orgaddr, org_enable_snat, new_tier0_uuid, newaddr, new_enable_snat, tier1_services_exist, sr_currently_exists) if actions['add_service_router']: self.create_service_router(context, router_id, router=router) if actions['revocate_bgp_announce']: # TODO(berlin): revocate bgp announce on org tier0 router pass if actions['remove_snat_rules']: self.nsxlib.router.delete_gw_snat_rules(nsx_router_id, orgaddr) if actions['remove_no_dnat_rules']: for subnet in router_subnets: self._del_subnet_no_dnat_rule(context, nsx_router_id, subnet) if actions['remove_router_link_port']: # remove the link port and reset the router transport zone self.nsxlib.router.remove_router_link_port(nsx_router_id) self.nsxlib.router.update_router_transport_zone( nsx_router_id, None) if actions['add_router_link_port']: # Add the overlay transport zone to the router config tz_uuid = self.nsxlib.router.get_tier0_router_overlay_tz( new_tier0_uuid) if tz_uuid: self.nsxlib.router.update_router_transport_zone( nsx_router_id, tz_uuid) tags = self.nsxlib.build_v3_tags_payload( router, resource_type='os-neutron-rport', project_name=context.tenant_name) self.nsxlib.router.add_router_link_port(nsx_router_id, new_tier0_uuid, tags=tags) if actions['add_snat_rules']: # Add SNAT rules for all the subnets which are in different scope # than the gw gw_address_scope = self._get_network_address_scope( context, router.gw_port.network_id) for subnet in router_subnets: self._add_subnet_snat_rule(context, router_id, nsx_router_id, subnet, gw_address_scope, newaddr) if actions['add_no_dnat_rules']: for subnet in router_subnets: self._add_subnet_no_dnat_rule(context, nsx_router_id, subnet) if actions['bgp_announce']: # TODO(berlin): bgp announce on new tier0 router pass self.nsxlib.router.update_advertisement( nsx_router_id, actions['advertise_route_nat_flag'], actions['advertise_route_connected_flag']) if actions['remove_service_router']: self.delete_service_router(context, router_id) def _add_subnet_snat_rule(self, context, router_id, nsx_router_id, subnet, gw_address_scope, gw_ip): if not self._need_router_snat_rules(context, router_id, subnet, gw_address_scope): return self.nsxlib.router.add_gw_snat_rule(nsx_router_id, gw_ip, source_net=subnet['cidr'], bypass_firewall=False) def _add_subnet_no_dnat_rule(self, context, nsx_router_id, subnet): if not self._need_router_no_dnat_rules(subnet): return # Add NO-DNAT rule to allow internal traffic between VMs, even if # they have floating ips (Only for routers with snat enabled) self.nsxlib.logical_router.add_nat_rule( nsx_router_id, "NO_DNAT", None, dest_net=subnet['cidr'], rule_priority=nsxlib_router.GW_NAT_PRI) def _del_subnet_no_dnat_rule(self, context, nsx_router_id, subnet): # Delete the previously created NO-DNAT rules self.nsxlib.logical_router.delete_nat_rule_by_values( nsx_router_id, action="NO_DNAT", match_destination_network=subnet['cidr']) def validate_router_dhcp_relay(self, context): """Fail router creation dhcp relay is configured without IPAM""" if (self._availability_zones_data.dhcp_relay_configured() and cfg.CONF.ipam_driver == 'internal'): err_msg = _("Neutron is configured with DHCP_Relay but no IPAM " "plugin configured") LOG.warning(err_msg) raise n_exc.InvalidInput(error_message=err_msg) def create_router(self, context, router): r = router['router'] self.validate_router_dhcp_relay(context) # validate the availability zone self._validate_obj_az_on_creation(context, r, 'router') gw_info = self._extract_external_gw(context, router, is_extract=True) r['id'] = (r.get('id') or uuidutils.generate_uuid()) tags = self.nsxlib.build_v3_tags_payload( r, resource_type='os-neutron-router-id', project_name=context.tenant_name) router = super(NsxV3Plugin, self).create_router(context, router) self._add_az_to_router(context, router['id'], r) router_db = self._get_router(context, r['id']) with db_api.CONTEXT_WRITER.using(context): self._process_extra_attr_router_create(context, router_db, r) # Create backend entries here in case neutron DB exception # occurred during super.create_router(), which will cause # API retry and leaves dangling backend entries. try: result = self.nsxlib.logical_router.create( display_name=utils.get_name_and_uuid( router['name'] or 'router', router['id']), description=router.get('description'), tags=tags) except nsx_lib_exc.ManagerError: with excutils.save_and_reraise_exception(): LOG.error("Unable to create logical router for " "neutron router %s", router['id']) self.delete_router(context, router['id']) try: nsx_db.add_neutron_nsx_router_mapping( context.session, router['id'], result['id']) except db_exc.DBError: with excutils.save_and_reraise_exception(): LOG.error("Unable to create router mapping for " "router %s", router['id']) self.delete_router(context, router['id']) if gw_info and gw_info != const.ATTR_NOT_SPECIFIED: try: self._update_router_gw_info(context, router['id'], gw_info) except (db_exc.DBError, nsx_lib_exc.ManagerError): with excutils.save_and_reraise_exception(): LOG.error("Failed to set gateway info for router " "being created: %s - removing router", router['id']) self.delete_router(context, router['id']) LOG.info("Create router failed while setting external " "gateway. Router:%s has been removed from " "DB and backend", router['id']) return self.get_router(context, router['id']) def delete_router(self, context, router_id): if not cfg.CONF.nsx_v3.native_dhcp_metadata: nsx_rpc.handle_router_metadata_access(self, context, router_id, interface=None) gw_info = self._get_router_gw_info(context, router_id) if gw_info: self._update_router_gw_info(context, router_id, {}) nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) ret_val = super(NsxV3Plugin, self).delete_router(context, router_id) # if delete was called due to create error, there might not be a # backend id if not nsx_router_id: return ret_val # Remove logical router from the NSX backend # It is safe to do now as db-level checks for resource deletion were # passed (and indeed the resource was removed from the Neutron DB try: self.nsxlib.logical_router.delete(nsx_router_id, force=True) except nsx_lib_exc.ResourceNotFound: # If the logical router was not found on the backend do not worry # about it. The conditions has already been logged, so there is no # need to do further logging pass except nsx_lib_exc.ManagerError: # if there is a failure in deleting the router do not fail the # operation, especially since the router object has already been # removed from the neutron DB. Take corrective steps to ensure the # resulting zombie object does not forward any traffic and is # eventually removed. LOG.warning("Backend router deletion for neutron router %s " "failed. The object was however removed from the " "Neutron database", router_id) return ret_val @nsx_plugin_common.api_replay_mode_wrapper def update_router(self, context, router_id, router): gw_info = self._extract_external_gw(context, router, is_extract=False) router_data = router['router'] self._assert_on_router_admin_state(router_data) if validators.is_attr_set(gw_info): self._validate_update_router_gw(context, router_id, gw_info) router_ports = self._get_router_interfaces(context, router_id) for port in router_ports: # if setting this router as no-snat, make sure gw address scope # match those of the subnets if not gw_info.get('enable_snat', cfg.CONF.enable_snat_by_default): for fip in port['fixed_ips']: self._validate_address_scope_for_router_interface( context.elevated(), router_id, gw_info['network_id'], fip['subnet_id']) # If the network attached to a router is a VLAN backed network # then it must be attached to an edge cluster if (not gw_info and not self._is_overlay_network(context, port['network_id'])): msg = _("A router attached to a VLAN backed network " "must have an external network assigned") raise n_exc.InvalidInput(error_message=msg) # VPNaaS need to be notified on router GW changes (there is # currently no matching upstream registration for this) vpn_plugin = directory.get_plugin(plugin_const.VPN) if vpn_plugin: vpn_driver = vpn_plugin.drivers[vpn_plugin.default_provider] vpn_driver.validate_router_gw_info(context, router_id, gw_info) nsx_router_id = None routes_added = [] routes_removed = [] try: if 'routes' in router_data: routes_added, routes_removed = self._get_static_routes_diff( context, router_id, gw_info, router_data) nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) for route in routes_removed: self.nsxlib.router.delete_static_routes(nsx_router_id, route) for route in routes_added: self.nsxlib.router.add_static_routes(nsx_router_id, route) if 'name' in router_data: # Update the name of logical router. router_name = router_data['name'] or 'router' display_name = utils.get_name_and_uuid(router_name, router_id) nsx_router_id = nsx_router_id or nsx_db.get_nsx_router_id( context.session, router_id) self.nsxlib.logical_router.update(nsx_router_id, display_name=display_name) # Update the name of associated logical ports. filters = {'device_id': [router_id], 'device_owner': const.ROUTER_INTERFACE_OWNERS} ports = self.get_ports(context, filters=filters) for port in ports: nsx_s_id, nsx_port_id = nsx_db.get_nsx_switch_and_port_id( context.session, port['id']) if nsx_port_id: name = utils.get_name_and_uuid( router_name, port['id'], tag='port') try: self.nsxlib.logical_port.update(nsx_port_id, None, name=name) except Exception as e: LOG.error("Unable to update port %(port_id)s. " "Reason: %(e)s", {'port_id': nsx_port_id, 'e': e}) if 'description' in router_data: nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) self.nsxlib.logical_router.update( nsx_router_id, description=router_data['description']) return super(NsxV3Plugin, self).update_router( context, router_id, router) except nsx_lib_exc.ResourceNotFound: with db_api.CONTEXT_WRITER.using(context): router_db = self._get_router(context, router_id) router_db['status'] = const.NET_STATUS_ERROR raise nsx_exc.NsxPluginException( err_msg=(_("logical router %s not found at the backend") % router_id)) except nsx_lib_exc.ManagerError: with excutils.save_and_reraise_exception(): router_db = self._get_router(context, router_id) curr_status = router_db['status'] router_db['status'] = const.NET_STATUS_ERROR if nsx_router_id: for route in routes_added: self.nsxlib.router.delete_static_routes( nsx_router_id, route) for route in routes_removed: self.nsxlib.router.add_static_routes(nsx_router_id, route) router_db['status'] = curr_status def _get_nsx_router_and_fw_section(self, context, router_id): # find the backend router id in the DB nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) if nsx_router_id is None: msg = _("Didn't find nsx router for router %s") % router_id LOG.error(msg) raise nsx_exc.NsxPluginException(err_msg=msg) # get the FW section id of the backend router try: section_id = self.nsxlib.logical_router.get_firewall_section_id( nsx_router_id) except Exception as e: msg = (_("Failed to find router firewall section for router " "%(id)s: %(e)s") % {'id': router_id, 'e': e}) LOG.error(msg) raise nsx_exc.NsxPluginException(err_msg=msg) if section_id is None: msg = (_("Failed to find router firewall section for router " "%(id)s.") % {'id': router_id}) LOG.error(msg) raise nsx_exc.NsxPluginException(err_msg=msg) return nsx_router_id, section_id def update_router_firewall(self, context, router_id, from_fw=False): """Rewrite all the rules in the router edge firewall This method should be called on FWaaS v2 updates, and on router interfaces changes. When FWaaS is disabled, there is no need to update the NSX router FW, as the default rule is allow-all. """ if (self.fwaas_callbacks and self.fwaas_callbacks.fwaas_enabled): # find all the relevant ports of the router for FWaaS v2 # TODO(asarfaty): Add vm ports as well ports = self._get_router_interfaces(context, router_id) nsx_router_id, section_id = self._get_nsx_router_and_fw_section( context, router_id) # let the fwaas callbacks update the router FW return self.fwaas_callbacks.update_router_firewall( context, self.nsxlib, router_id, ports, nsx_router_id, section_id, from_fw=from_fw) def _get_port_relay_servers(self, context, port_id, network_id=None): if not network_id: port = self.get_port(context, port_id) network_id = port['network_id'] net_az = self.get_network_az_by_net_id(context, network_id) return net_az.dhcp_relay_servers def _get_port_relay_services(self): # DHCP services: UDP 67, 68, 2535 #TODO(asarfaty): use configurable ports service1 = self.nsxlib.firewall_section.get_nsservice( nsxlib_consts.L4_PORT_SET_NSSERVICE, l4_protocol=nsxlib_consts.UDP, destination_ports=['67-68']) service2 = self.nsxlib.firewall_section.get_nsservice( nsxlib_consts.L4_PORT_SET_NSSERVICE, l4_protocol=nsxlib_consts.UDP, destination_ports=['2535']) return [service1, service2] def get_extra_fw_rules(self, context, router_id, port_id=None): """Return firewall rules that should be added to the router firewall This method should return a list of allow firewall rules that are required in order to enable different plugin features with north/south traffic. The returned rules will be added after the FWaaS rules, and before the default drop rule. if port_id is specified, only rules relevant for this router interface port should be returned, and the rules should be ingress/egress (but not both) and include the source/dest nsx logical port. """ # TODO(asarfaty) support only cases with port_id, as FWaaS v1 is no # longer supported extra_rules = [] # DHCP relay rules: # get the list of relevant relay servers elv_ctx = context.elevated() if port_id: relay_servers = self._get_port_relay_servers(elv_ctx, port_id) else: relay_servers = [] filters = {'device_owner': [l3_db.DEVICE_OWNER_ROUTER_INTF], 'device_id': [router_id]} ports = self.get_ports(elv_ctx, filters=filters) for port in ports: port_relay_servers = self._get_port_relay_servers( elv_ctx, port['id'], network_id=port['network_id']) if port_relay_servers: relay_servers.extend(port_relay_servers) # Add rules to allow dhcp traffic relay servers if relay_servers: # if it is a single port, the source/dest is this logical switch if port_id: nsx_ls_id, _nsx_port_id = nsx_db.get_nsx_switch_and_port_id( context.session, port_id) port_target = [{'target_type': 'LogicalSwitch', 'target_id': nsx_ls_id}] else: port_target = None # translate the relay server ips to the firewall format relay_target = [] if self.fwaas_callbacks: relay_target = (self.fwaas_callbacks.fwaas_driver. translate_addresses_to_target(set(relay_servers), self.plugin_type())) dhcp_services = self._get_port_relay_services() # ingress rule extra_rules.append({ 'display_name': "DHCP Relay ingress traffic", 'action': nsxlib_consts.FW_ACTION_ALLOW, 'sources': relay_target, 'destinations': port_target, 'services': dhcp_services, 'direction': 'IN'}) # egress rule extra_rules.append({ 'display_name': "DHCP Relay egress traffic", 'action': nsxlib_consts.FW_ACTION_ALLOW, 'destinations': relay_target, 'sources': port_target, 'services': dhcp_services, 'direction': 'OUT'}) # VPN rules: vpn_plugin = directory.get_plugin(plugin_const.VPN) if vpn_plugin: vpn_driver = vpn_plugin.drivers[vpn_plugin.default_provider] vpn_rules = ( vpn_driver._generate_ipsecvpn_firewall_rules( self.plugin_type(), context, router_id=router_id)) if vpn_rules: extra_rules.extend(vpn_rules) return extra_rules def _get_ports_and_address_groups(self, context, router_id, network_id, exclude_sub_ids=None): exclude_sub_ids = [] if not exclude_sub_ids else exclude_sub_ids address_groups = [] network_ports = self._get_router_interface_ports_by_network( context, router_id, network_id) ports = [] for port in network_ports: if port['fixed_ips']: add_port = False for fip in port['fixed_ips']: if fip['subnet_id'] not in exclude_sub_ids: add_port = True if add_port: ports.append(port) for port in ports: for fip in port['fixed_ips']: address_group = {} gateway_ip = fip['ip_address'] subnet = self.get_subnet(context, fip['subnet_id']) prefixlen = str(netaddr.IPNetwork(subnet['cidr']).prefixlen) address_group['ip_addresses'] = [gateway_ip] address_group['prefix_length'] = prefixlen address_groups.append(address_group) return (ports, address_groups) @nsx_plugin_common.api_replay_mode_wrapper def add_router_interface(self, context, router_id, interface_info): # In case on dual stack, neutron creates a separate interface per # IP version subnet = self._get_interface_subnet(context, interface_info) network_id = self._get_interface_network_id(context, interface_info, subnet=subnet) extern_net = self._network_is_external(context, network_id) overlay_net = self._is_overlay_network(context, network_id) router_db = self._get_router(context, router_id) gw_network_id = (router_db.gw_port.network_id if router_db.gw_port else None) with locking.LockManager.get_lock(str(network_id)): # disallow more than one subnets belong to same network being # attached to routers self._validate_multiple_subnets_routers( context, router_id, network_id, subnet) # A router interface cannot be an external network if extern_net: msg = _("An external network cannot be attached as " "an interface to a router") raise n_exc.InvalidInput(error_message=msg) # Non overlay networks should be configured with a centralized # router, which is allowed only if GW network is attached if not overlay_net and not gw_network_id: msg = _("A router attached to a VLAN backed network " "must have an external network assigned") raise n_exc.InvalidInput(error_message=msg) # Interface subnets cannot overlap with the GW external subnet self._validate_gw_overlap_interfaces(context, gw_network_id, [network_id]) # Update the interface of the neutron router info = super(NsxV3Plugin, self).add_router_interface( context, router_id, interface_info) try: nsx_net_id, nsx_port_id = nsx_db.get_nsx_switch_and_port_id( context.session, info['port_id']) # If it is a no-snat router, interface address scope must be the # same as the gateways self._validate_interface_address_scope(context, router_db, subnet) nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) _ports, address_groups = self._get_ports_and_address_groups( context, router_id, network_id) display_name = utils.get_name_and_uuid( subnet['name'] or 'subnet', subnet['id']) tags = self.nsxlib.build_v3_tags_payload( {'id': info['port_id'], 'project_id': context.project_id}, resource_type='os-neutron-rport-id', project_name=context.tenant_name) tags.append({'scope': 'os-subnet-id', 'tag': subnet['id']}) # Add the dhcp relay service to the NSX interface relay_service = None if subnet['enable_dhcp']: net_az = self.get_network_az_by_net_id(context, network_id) relay_service = net_az.dhcp_relay_service resource_type = (None if overlay_net else nsxlib_consts.LROUTERPORT_CENTRALIZED) # Validate the TZ of the new subnet match the one of the router tier0_uuid = self._get_tier0_uuid_by_router(context.elevated(), router_db) self._validate_router_tz(context.elevated(), tier0_uuid, [subnet]) # create the interface ports on the NSX self.nsxlib.router.create_logical_router_intf_port_by_ls_id( logical_router_id=nsx_router_id, display_name=display_name, tags=tags, ls_id=nsx_net_id, logical_switch_port_id=nsx_port_id, address_groups=address_groups, relay_service_uuid=relay_service, resource_type=resource_type) if router_db.gw_port and not router_db.enable_snat: # TODO(berlin): Announce the subnet on tier0 if enable_snat # is False pass if not cfg.CONF.nsx_v3.native_dhcp_metadata: # Ensure the NSX logical router has a connection to a # 'metadata access' network (with a proxy listening on # its DHCP port), by creating it if needed. nsx_rpc.handle_router_metadata_access(self, context, router_id, interface=info) # add the SNAT/NO_DNAT rules for this interface if router_db.enable_snat and gw_network_id: if router_db.gw_port.get('fixed_ips'): gw_address_scope = self._get_network_address_scope( context, gw_network_id) for fip in router_db.gw_port['fixed_ips']: gw_ip = fip['ip_address'] self._add_subnet_snat_rule( context, router_id, nsx_router_id, subnet, gw_address_scope, gw_ip) self._add_subnet_no_dnat_rule(context, nsx_router_id, subnet) # update firewall rules self.update_router_firewall(context, router_id) except Exception: with excutils.save_and_reraise_exception(): LOG.error("Neutron failed to add_router_interface on " "router %s, and would try to rollback.", router_id) try: self.remove_router_interface( context, router_id, interface_info) except Exception: # rollback also failed LOG.error("Neutron rollback failed to remove router " "interface on router %s.", router_id) return info def remove_router_interface(self, context, router_id, interface_info): self._validate_interface_info(interface_info, for_removal=True) # Get the interface port & subnet subnet = None subnet_id = None port_id = None network_id = None if 'port_id' in interface_info: port_id = interface_info['port_id'] # Find subnet_id which is needed for removing the SNAT rule port = self._get_port(context, port_id) network_id = port['network_id'] if port.get('fixed_ips'): for fip in port['fixed_ips']: subnet_id = fip['subnet_id'] self._confirm_router_interface_not_in_use( context, router_id, subnet_id) if not (port['device_owner'] in const.ROUTER_INTERFACE_OWNERS and port['device_id'] == router_id): raise l3_exc.RouterInterfaceNotFound( router_id=router_id, port_id=port_id) elif 'subnet_id' in interface_info: subnet_id = interface_info['subnet_id'] self._confirm_router_interface_not_in_use( context, router_id, subnet_id) subnet = self._get_subnet(context, subnet_id) network_id = subnet['network_id'] ports = self._get_router_interface_ports_by_network( context, router_id, network_id) for p in ports: fip_subnet_ids = [fixed_ip['subnet_id'] for fixed_ip in p['fixed_ips']] if subnet_id in fip_subnet_ids: port_id = p['id'] break else: raise l3_exc.RouterInterfaceNotFoundForSubnet( router_id=router_id, subnet_id=subnet_id) try: # TODO(berlin): Revocate announce the subnet on tier0 if # enable_snat is False router_db = self._get_router(context, router_id) if router_db.gw_port and not router_db.enable_snat: pass nsx_net_id, _nsx_port_id = nsx_db.get_nsx_switch_and_port_id( context.session, port_id) if not subnet: subnet = self._get_subnet(context, subnet_id) ports, address_groups = self._get_ports_and_address_groups( context, router_id, network_id, exclude_sub_ids=[subnet_id]) nsx_router_id = nsx_db.get_nsx_router_id( context.session, router_id) if len(ports) >= 1: new_using_port_id = ports[0]['id'] _net_id, new_nsx_port_id = nsx_db.get_nsx_switch_and_port_id( context.session, new_using_port_id) self.nsxlib.logical_router_port.update_by_lswitch_id( nsx_router_id, nsx_net_id, linked_logical_switch_port_id={ 'target_id': new_nsx_port_id}, subnets=address_groups) else: self.nsxlib.logical_router_port.delete_by_lswitch_id( nsx_net_id) # try to delete the SNAT/NO_DNAT rules of this subnet if router_db.gw_port and router_db.enable_snat: if router_db.gw_port.get('fixed_ips'): for fixed_ip in router_db.gw_port['fixed_ips']: gw_ip = fixed_ip['ip_address'] self.nsxlib.router.delete_gw_snat_rule_by_source( nsx_router_id, gw_ip, subnet['cidr'], skip_not_found=True) self._del_subnet_no_dnat_rule(context, nsx_router_id, subnet) except nsx_lib_exc.ResourceNotFound: LOG.error("router port on router %(router_id)s for net " "%(net_id)s not found at the backend", {'router_id': router_id, 'net_id': network_id}) # inform the FWaaS that interface port was removed if self.fwaas_callbacks: self.fwaas_callbacks.delete_port(context, port_id) info = super(NsxV3Plugin, self).remove_router_interface( context, router_id, interface_info) if not cfg.CONF.nsx_v3.native_dhcp_metadata: # Ensure the connection to the 'metadata access network' is removed # (with the network) if this is the last DHCP-disabled subnet on # the router. nsx_rpc.handle_router_metadata_access(self, context, router_id) # update firewall rules self.update_router_firewall(context, router_id) return info def _update_lb_vip(self, port, vip_address): # update the load balancer virtual server's VIP with # floating ip, but don't add NAT rules device_id = port['device_id'] if device_id.startswith(oct_const.DEVICE_ID_PREFIX): device_id = device_id[len(oct_const.DEVICE_ID_PREFIX):] lb_tag = [{'scope': 'os-lbaas-lb-id', 'tag': device_id}] vs_list = self.nsxlib.search_by_tags( tags=lb_tag, resource_type='LbVirtualServer') if vs_list['results']: vs_client = self.nsxlib.load_balancer.virtual_server for vs in vs_list['results']: vs_client.update_virtual_server_with_vip(vs['id'], vip_address) def create_floatingip(self, context, floatingip): # First do some validations fip_data = floatingip['floatingip'] port_id = fip_data.get('port_id') if port_id: port_data = self.get_port(context, port_id) self._assert_on_assoc_floatingip_to_special_ports( fip_data, port_data) # create the neutron fip new_fip = self._create_floating_ip_wrapper(context, floatingip) router_id = new_fip['router_id'] if not router_id: return new_fip if port_id: device_owner = port_data.get('device_owner') fip_address = new_fip['floating_ip_address'] if (device_owner == const.DEVICE_OWNER_LOADBALANCERV2 or device_owner == oct_const.DEVICE_OWNER_OCTAVIA or device_owner == lb_const.VMWARE_LB_VIP_OWNER): try: self._update_lb_vip(port_data, fip_address) except nsx_lib_exc.ManagerError: with excutils.save_and_reraise_exception(): super(NsxV3Plugin, self).delete_floatingip( context, new_fip['id']) return new_fip try: nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) self.nsxlib.router.add_fip_nat_rules( nsx_router_id, new_fip['floating_ip_address'], new_fip['fixed_ip_address'], bypass_firewall=False) except nsx_lib_exc.ManagerError: with excutils.save_and_reraise_exception(): self.delete_floatingip(context, new_fip['id']) return new_fip def delete_floatingip(self, context, fip_id): fip = self.get_floatingip(context, fip_id) router_id = fip['router_id'] port_id = fip['port_id'] is_lb_port = False if port_id: port_data = self.get_port(context, port_id) device_owner = port_data.get('device_owner') fixed_ip_address = fip['fixed_ip_address'] if (device_owner == const.DEVICE_OWNER_LOADBALANCERV2 or device_owner == oct_const.DEVICE_OWNER_OCTAVIA or device_owner == lb_const.VMWARE_LB_VIP_OWNER): # If the port is LB VIP port, after deleting the FIP, # update the virtual server VIP back to fixed IP. is_lb_port = True try: self._update_lb_vip(port_data, fixed_ip_address) except nsx_lib_exc.ManagerError as e: LOG.error("Exception when updating vip ip_address" "on vip_port %(port)s: %(err)s", {'port': port_id, 'err': e}) if router_id and not is_lb_port: try: nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) self.nsxlib.router.delete_fip_nat_rules( nsx_router_id, fip['floating_ip_address'], fip['fixed_ip_address']) except nsx_lib_exc.ResourceNotFound: LOG.warning("Backend NAT rules for fip: %(fip_id)s " "(ext_ip: %(ext_ip)s int_ip: %(int_ip)s) " "not found", {'fip_id': fip_id, 'ext_ip': fip['floating_ip_address'], 'int_ip': fip['fixed_ip_address']}) super(NsxV3Plugin, self).delete_floatingip(context, fip_id) def update_floatingip(self, context, fip_id, floatingip): fip_data = floatingip['floatingip'] old_fip = self.get_floatingip(context, fip_id) old_port_id = old_fip['port_id'] new_status = (const.FLOATINGIP_STATUS_ACTIVE if fip_data.get('port_id') else const.FLOATINGIP_STATUS_DOWN) updated_port_id = fip_data.get('port_id') if updated_port_id: updated_port_data = self.get_port(context, updated_port_id) self._assert_on_assoc_floatingip_to_special_ports( fip_data, updated_port_data) new_fip = super(NsxV3Plugin, self).update_floatingip( context, fip_id, floatingip) router_id = new_fip['router_id'] new_port_id = new_fip['port_id'] try: is_lb_port = False if old_port_id: old_port_data = self.get_port(context, old_port_id) old_device_owner = old_port_data['device_owner'] old_fixed_ip = old_fip['fixed_ip_address'] if (old_device_owner == const.DEVICE_OWNER_LOADBALANCERV2 or old_device_owner == oct_const.DEVICE_OWNER_OCTAVIA or old_device_owner == lb_const.VMWARE_LB_VIP_OWNER): is_lb_port = True self._update_lb_vip(old_port_data, old_fixed_ip) # Delete old router's fip rules if old_router_id is not None. if old_fip['router_id'] and not is_lb_port: try: old_nsx_router_id = nsx_db.get_nsx_router_id( context.session, old_fip['router_id']) self.nsxlib.router.delete_fip_nat_rules( old_nsx_router_id, old_fip['floating_ip_address'], old_fip['fixed_ip_address']) except nsx_lib_exc.ResourceNotFound: LOG.warning("Backend NAT rules for fip: %(fip_id)s " "(ext_ip: %(ext_ip)s int_ip: %(int_ip)s) " "not found", {'fip_id': old_fip['id'], 'ext_ip': old_fip['floating_ip_address'], 'int_ip': old_fip['fixed_ip_address']}) # Update LB VIP if the new port is LB port is_lb_port = False if new_port_id: new_port_data = self.get_port(context, new_port_id) new_dev_own = new_port_data['device_owner'] new_fip_address = new_fip['floating_ip_address'] if (new_dev_own == const.DEVICE_OWNER_LOADBALANCERV2 or new_dev_own == oct_const.DEVICE_OWNER_OCTAVIA or new_dev_own == lb_const.VMWARE_LB_VIP_OWNER): is_lb_port = True self._update_lb_vip(new_port_data, new_fip_address) # TODO(berlin): Associating same FIP to different internal IPs # would lead to creating multiple times of FIP nat rules at the # backend. Let's see how to fix the problem latter. # Update current router's nat rules if router_id is not None. if router_id and not is_lb_port: nsx_router_id = nsx_db.get_nsx_router_id(context.session, router_id) self.nsxlib.router.add_fip_nat_rules( nsx_router_id, new_fip['floating_ip_address'], new_fip['fixed_ip_address'], bypass_firewall=False) except nsx_lib_exc.ManagerError: with excutils.save_and_reraise_exception(): super(NsxV3Plugin, self).update_floatingip( context, fip_id, {'floatingip': {'port_id': old_port_id}}) self.update_floatingip_status(context, fip_id, const.FLOATINGIP_STATUS_ERROR) if new_fip['status'] != new_status: new_fip['status'] = new_status self.update_floatingip_status(context, fip_id, new_status) return new_fip def disassociate_floatingips(self, context, port_id): fip_qry = context.session.query(l3_db_models.FloatingIP) fip_dbs = fip_qry.filter_by(fixed_port_id=port_id) for fip_db in fip_dbs: if not fip_db.router_id: continue try: nsx_router_id = nsx_db.get_nsx_router_id(context.session, fip_db.router_id) self.nsxlib.router.delete_fip_nat_rules( nsx_router_id, fip_db.floating_ip_address, fip_db.fixed_ip_address) except nsx_lib_exc.ResourceNotFound: LOG.warning("Backend NAT rules for fip: %(fip_id)s " "(ext_ip: %(ext_ip)s int_ip: %(int_ip)s) " "not found", {'fip_id': fip_db.id, 'ext_ip': fip_db.floating_ip_address, 'int_ip': fip_db.fixed_ip_address}) self.update_floatingip_status(context, fip_db.id, const.FLOATINGIP_STATUS_DOWN) super(NsxV3Plugin, self).disassociate_floatingips( context, port_id, do_notify=False) def _create_fw_section_for_secgroup(self, nsgroup, is_provider): # NOTE(arosen): if a security group is provider we want to # insert our rules at the top. operation = (nsxlib_consts.FW_INSERT_TOP if is_provider else nsxlib_consts.FW_INSERT_BEFORE) # security-group rules are located in a dedicated firewall section. firewall_section = ( self.nsxlib.firewall_section.create_empty( nsgroup.get('display_name'), nsgroup.get('description'), [nsgroup.get('id')], nsgroup.get('tags'), operation=operation, other_section=self.default_section)) return firewall_section def _create_security_group_backend_resources(self, secgroup): tags = self.nsxlib.build_v3_tags_payload( secgroup, resource_type='os-neutron-secgr-id', project_name=secgroup['tenant_id']) name = self.get_nsgroup_name(secgroup) tag_expression = ( self.nsxlib.ns_group.get_port_tag_expression( common_utils.PORT_SG_SCOPE, secgroup['id'])) ns_group = self.nsxlib.ns_group.create( name, secgroup['description'], tags, tag_expression) # security-group rules are located in a dedicated firewall section. firewall_section = self._create_fw_section_for_secgroup( ns_group, secgroup.get(provider_sg.PROVIDER)) return ns_group, firewall_section def _create_firewall_rules(self, context, section_id, nsgroup_id, logging_enabled, action, sg_rules): # since the nsxlib does not have access to the nsx db, # we need to provide a mapping for the remote nsgroup ids. ruleid_2_remote_nsgroup_map = {} _sg_rules = copy.deepcopy(sg_rules) for sg_rule in _sg_rules: self._fix_sg_rule_dict_ips(sg_rule) remote_nsgroup_id = None remote_group_id = sg_rule.get('remote_group_id') # skip unnecessary db access when possible if remote_group_id == sg_rule['security_group_id']: remote_nsgroup_id = nsgroup_id elif remote_group_id: remote_nsgroup_id = nsx_db.get_nsx_security_group_id( context.session, remote_group_id) ruleid_2_remote_nsgroup_map[sg_rule['id']] = remote_nsgroup_id return self.nsxlib.firewall_section.create_section_rules( section_id, nsgroup_id, logging_enabled, action, _sg_rules, ruleid_2_remote_nsgroup_map) def create_security_group(self, context, security_group, default_sg=False): secgroup = security_group['security_group'] secgroup['id'] = secgroup.get('id') or uuidutils.generate_uuid() ns_group = {} firewall_section = {} if not default_sg: tenant_id = secgroup['tenant_id'] self._ensure_default_security_group(context, tenant_id) try: ns_group, firewall_section = ( self._create_security_group_backend_resources(secgroup)) # REVISIT(roeyc): Ideally, at this point we need not be under an # open db transactions, however, unittests fail if omitting # subtransactions=True. with db_api.CONTEXT_WRITER.using(context): # NOTE(arosen): a neutron security group be default adds rules # that allow egress traffic. We do not want this behavior for # provider security_groups if secgroup.get(provider_sg.PROVIDER) is True: secgroup_db = self.create_provider_security_group( context, security_group) else: secgroup_db = ( super(NsxV3Plugin, self).create_security_group( context, security_group, default_sg)) nsx_db.save_sg_mappings(context, secgroup_db['id'], ns_group['id'], firewall_section['id']) self._process_security_group_properties_create(context, secgroup_db, secgroup, default_sg) if cfg.CONF.api_replay_mode: self._handle_api_replay_default_sg(context, secgroup_db) except nsx_lib_exc.ManagerError: with excutils.save_and_reraise_exception(): LOG.exception("Unable to create security-group on the " "backend.") if ns_group: self.nsxlib.ns_group.delete(ns_group['id']) except Exception: with excutils.save_and_reraise_exception(): section_id = firewall_section.get('id') nsgroup_id = ns_group.get('id') LOG.debug("Neutron failed to create security-group, " "deleting backend resources: " "section %s, ns-group %s.", section_id, nsgroup_id) if nsgroup_id: self.nsxlib.ns_group.delete(nsgroup_id) if section_id: self.nsxlib.firewall_section.delete(section_id) try: sg_rules = secgroup_db['security_group_rules'] # skip if there are no rules in group. i.e provider case if sg_rules: # translate and creates firewall rules. logging = ( cfg.CONF.nsx_v3.log_security_groups_allowed_traffic or secgroup.get(sg_logging.LOGGING, False)) action = (nsxlib_consts.FW_ACTION_DROP if secgroup.get(provider_sg.PROVIDER) else nsxlib_consts.FW_ACTION_ALLOW) rules = self._create_firewall_rules( context, firewall_section['id'], ns_group['id'], logging, action, sg_rules) self.save_security_group_rule_mappings(context, rules['rules']) except nsx_lib_exc.ManagerError as ex: msg = ("Failed to create backend firewall rules " "for security-group %(name)s (%(id)s), " "rolling back changes." % secgroup_db) LOG.exception(msg) # default security group deletion requires admin context if default_sg: context = context.elevated() super(NsxV3Plugin, self).delete_security_group( context, secgroup_db['id']) try: self.nsxlib.ns_group.delete(ns_group['id']) except Exception: pass self.nsxlib.firewall_section.delete(firewall_section['id']) if ex.__class__ is nsx_lib_exc.ResourceNotFound: # This may happen due to race condition during # backend reboot. The exception raised should reflect # short-term availability issue (500) rather than 404 raise nsx_exc.NsxPluginTemporaryError(err_msg=msg) else: raise ex return secgroup_db def _prevent_nsx_internal_sg_modification(self, sg_id): if sg_id == v3_utils.NSX_V3_OS_DFW_UUID: msg = _("Cannot modify NSX internal security group") raise n_exc.InvalidInput(error_message=msg) def get_nsgroup_name(self, security_group): # Adding the security-group id to the NSGroup name, # for usability purposes. return '%(name)s - %(id)s' % security_group def update_security_group(self, context, id, security_group): orig_secgroup = self.get_security_group( context, id, fields=['id', 'name', 'description']) self._prevent_non_admin_edit_provider_sg(context, id) self._prevent_nsx_internal_sg_modification(id) with db_api.CONTEXT_WRITER.using(context): secgroup_res = ( super(NsxV3Plugin, self).update_security_group(context, id, security_group)) self._process_security_group_properties_update( context, secgroup_res, security_group['security_group']) try: nsgroup_id, section_id = nsx_db.get_sg_mappings( context.session, id) nsgroup_name = self.get_nsgroup_name(secgroup_res) self.nsxlib.ns_group.update_nsgroup_and_section( nsgroup_name, secgroup_res['description'], secgroup_res.get(sg_logging.LOGGING, False), nsgroup_id, section_id, cfg.CONF.nsx_v3.log_security_groups_allowed_traffic) except nsx_lib_exc.ManagerError: with excutils.save_and_reraise_exception(): LOG.exception("Failed to update security-group %(name)s " "(%(id)s), rolling back changes in " "Neutron.", orig_secgroup) super(NsxV3Plugin, self).update_security_group( context, id, {'security_group': orig_secgroup}) return secgroup_res def delete_security_group(self, context, id): self._prevent_non_admin_edit_provider_sg(context, id) self._prevent_nsx_internal_sg_modification(id) nsgroup_id, section_id = nsx_db.get_sg_mappings( context.session, id) super(NsxV3Plugin, self).delete_security_group(context, id) self.nsxlib.firewall_section.delete(section_id) try: self.nsxlib.ns_group.delete(nsgroup_id) except Exception: LOG.debug("While deleting SG %s NSGroup %s was not found", id, nsgroup_id) def create_security_group_rule(self, context, security_group_rule): bulk_rule = {'security_group_rules': [security_group_rule]} return self.create_security_group_rule_bulk(context, bulk_rule)[0] def create_security_group_rule_bulk(self, context, security_group_rules): sg_rules = security_group_rules['security_group_rules'] for r in sg_rules: self._check_local_ip_prefix(context, r['security_group_rule']) # Generate id for security group rule or use one specified, # if specified we are running in api-replay as server doesn't # allow id to be specified by default r['security_group_rule']['id'] = ( r['security_group_rule'].get('id') or uuidutils.generate_uuid()) with db_api.CONTEXT_WRITER.using(context): rules_db = (super(NsxV3Plugin, self).create_security_group_rule_bulk_native( context, security_group_rules)) for i, r in enumerate(sg_rules): self._process_security_group_rule_properties( context, rules_db[i], r['security_group_rule']) # NOTE(arosen): here are assuming that all of the security # group rules being added are part of the same security # group. We should be validating that this is the case though... sg_id = sg_rules[0]['security_group_rule']['security_group_id'] self._prevent_non_admin_edit_provider_sg(context, sg_id) self._prevent_nsx_internal_sg_modification(sg_id) security_group = self.get_security_group( context, sg_id) action = nsxlib_consts.FW_ACTION_ALLOW if security_group.get(provider_sg.PROVIDER) is True: # provider security groups are drop rules. action = nsxlib_consts.FW_ACTION_DROP sg_id = rules_db[0]['security_group_id'] nsgroup_id, section_id = nsx_db.get_sg_mappings(context.session, sg_id) logging_enabled = ( cfg.CONF.nsx_v3.log_security_groups_allowed_traffic or self._is_security_group_logged(context, sg_id)) try: rules = self._create_firewall_rules( context, section_id, nsgroup_id, logging_enabled, action, rules_db) except nsx_lib_exc.ManagerError: with excutils.save_and_reraise_exception(): for rule in rules_db: super(NsxV3Plugin, self).delete_security_group_rule( context, rule['id']) self.save_security_group_rule_mappings(context, rules['rules']) return rules_db def delete_security_group_rule(self, context, id): rule_db = self._get_security_group_rule(context, id) sg_id = rule_db['security_group_id'] self._prevent_non_admin_edit_provider_sg(context, sg_id) self._prevent_nsx_internal_sg_modification(sg_id) nsgroup_id, section_id = nsx_db.get_sg_mappings(context.session, sg_id) fw_rule_id = nsx_db.get_sg_rule_mapping(context.session, id) self.nsxlib.firewall_section.delete_rule(section_id, fw_rule_id) super(NsxV3Plugin, self).delete_security_group_rule(context, id) def save_security_group_rule_mappings(self, context, firewall_rules): rules = [(rule['display_name'], rule['id']) for rule in firewall_rules] nsx_db.save_sg_rule_mappings(context.session, rules) def recalculate_snat_rules_for_router(self, context, router, subnets): """Recalculate router snat rules for specific subnets. Invoked when subnetpool address scope changes. """ nsx_router_id = nsx_db.get_nsx_router_id(context.session, router['id']) if not router['external_gateway_info']: return LOG.info("Recalculating snat rules for router %s", router['id']) fips = router['external_gateway_info']['external_fixed_ips'] ext_addrs = [fip['ip_address'] for fip in fips] gw_address_scope = self._get_network_address_scope( context, router['external_gateway_info']['network_id']) # TODO(annak): improve amount of backend calls by rebuilding all # snat rules when API is available for subnet in subnets: if gw_address_scope: subnet_address_scope = self._get_subnetpool_address_scope( context, subnet['subnetpool_id']) LOG.info("Deleting SNAT rule for %(router)s " "and subnet %(subnet)s", {'router': router['id'], 'subnet': subnet['id']}) # Delete rule for this router/subnet pair if it exists for ext_addr in ext_addrs: self.nsxlib.router.delete_gw_snat_rule_by_source( nsx_router_id, ext_addr, subnet['cidr'], skip_not_found=True) if (gw_address_scope != subnet_address_scope): # subnet is no longer under same address scope with GW LOG.info("Adding SNAT rule for %(router)s " "and subnet %(subnet)s", {'router': router['id'], 'subnet': subnet['id']}) self.nsxlib.router.add_gw_snat_rule( nsx_router_id, ext_addr, source_net=subnet['cidr'], bypass_firewall=False) def _get_tier0_uplink_cidrs(self, tier0_id): # return a list of tier0 uplink ip/prefix addresses return self.nsxlib.logical_router_port.get_tier0_uplink_cidrs( tier0_id) def _get_neutron_net_ids_by_nsx_id(self, context, lswitch_id): return nsx_db.get_net_ids(context.session, lswitch_id) def _get_net_dhcp_relay(self, context, net_id): return self.get_network_az_by_net_id( context, net_id).dhcp_relay_service def update_port_nsx_tags(self, context, port_id, tags, is_delete=False): """Update backend NSX port with tags from the tagging plugin""" ctx = q_context.get_admin_context() _, nsx_lport_id = nsx_db.get_nsx_switch_and_port_id( ctx.session, port_id) if not nsx_lport_id: LOG.info("Ignoring tags on port %s: this port has no backend " "NSX logical port", port_id) return # Get the current tags on this port lport = self.nsxlib.logical_port.get(nsx_lport_id) port_tags = lport.get('tags') orig_len = len(port_tags) # Update and validate the list of tags extra_tags = self._translate_external_tags(tags, port_id) if is_delete: port_tags = [tag for tag in port_tags if tag not in extra_tags] else: port_tags.extend( [tag for tag in extra_tags if tag not in port_tags]) if len(port_tags) > nsxlib_utils.MAX_TAGS: LOG.warning("Cannot add external tags to port %s: " "too many tags", port_id) # Update the NSX port if len(port_tags) != orig_len: self.nsxlib.logical_port.update( nsx_lport_id, False, tags=port_tags) def _validate_net_mdproxy_tz(self, az, tz_uuid, mdproxy_uuid): """Validate that the network TZ matches the mdproxy edge cluster""" mdproxy_obj = self.nsxlib.native_md_proxy.get(mdproxy_uuid) ec_id = mdproxy_obj['edge_cluster_id'] ec_nodes = self.nsxlib.edge_cluster.get_transport_nodes(ec_id) ec_tzs = [] for tn_uuid in ec_nodes: ec_tzs.extend(self.nsxlib.transport_node.get_transport_zones( tn_uuid)) if tz_uuid not in ec_tzs: return False return True def _support_address_pairs_ipv4_cidr(self): return self.nsxlib.feature_supported( nsxlib_consts.FEATURE_SPOOFGUARD_CIDR)