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vmware-nsx/vmware_nsx/plugins/nsx_v3/plugin.py

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# 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 netaddr
import six
from neutron.api.rpc.agentnotifiers import dhcp_rpc_agent_api
from neutron.api.rpc.callbacks import resources as callbacks_resources
from neutron.api.rpc.handlers import dhcp_rpc
from neutron.api.rpc.handlers import metadata_rpc
from neutron.api.rpc.handlers import resources_rpc
from neutron.api.v2 import attributes
from neutron.common import rpc as n_rpc
from neutron.common import topics
from neutron.db import _utils as db_utils
from neutron.db import address_scope_db
from neutron.db import agents_db
from neutron.db import agentschedulers_db
from neutron.db import allowedaddresspairs_db as addr_pair_db
from neutron.db import api as db_api
from neutron.db import db_base_plugin_v2
from neutron.db import dns_db
from neutron.db import external_net_db
from neutron.db import extradhcpopt_db
from neutron.db import extraroute_db
from neutron.db import l3_attrs_db
from neutron.db import l3_db
from neutron.db import l3_gwmode_db
from neutron.db.models import l3 as l3_db_models
from neutron.db.models import securitygroup as securitygroup_model # noqa
from neutron.db import models_v2
from neutron.db import portbindings_db
from neutron.db import portsecurity_db
from neutron.db import securitygroups_db
from neutron.extensions import allowedaddresspairs as addr_pair
from neutron.extensions import availability_zone as az_ext
from neutron.extensions import external_net as ext_net_extn
from neutron.extensions import extra_dhcp_opt as ext_edo
from neutron.extensions import l3
from neutron.extensions import portsecurity as psec
from neutron.extensions import providernet
from neutron.extensions import securitygroup as ext_sg
from neutron.plugins.common import constants as plugin_const
from neutron.plugins.common import utils as n_utils
from neutron.quota import resource_registry
from neutron.services.qos import qos_consts
from neutron_lib.api.definitions import portbindings as pbin
from neutron_lib.api.definitions import provider_net as pnet
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 import exceptions as n_exc
from neutron_lib.utils import helpers
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 sqlalchemy import exc as sql_exc
from vmware_nsx._i18n import _
from vmware_nsx.api_replay import utils as api_replay_utils
from vmware_nsx.common import availability_zones as nsx_com_az
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 utils
from vmware_nsx.db import db as nsx_db
from vmware_nsx.db import extended_security_group
from vmware_nsx.db import extended_security_group_rule as extend_sg_rule
from vmware_nsx.db import maclearning as mac_db
from vmware_nsx.dhcp_meta import rpc as nsx_rpc
from vmware_nsx.extensions import advancedserviceproviders as as_providers
from vmware_nsx.extensions import maclearning as mac_ext
from vmware_nsx.extensions import providersecuritygroup as provider_sg
from vmware_nsx.extensions import securitygrouplogging as sg_logging
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.qos.common import utils as qos_com_utils
from vmware_nsx.services.qos.nsx_v3 import driver as qos_driver
from vmware_nsx.services.trunk.nsx_v3 import driver as trunk_driver
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 resources as nsx_resources
from vmware_nsxlib.v3 import router
from vmware_nsxlib.v3 import security
from vmware_nsxlib.v3 import utils as nsxlib_utils
LOG = log.getLogger(__name__)
NSX_V3_PSEC_PROFILE_NAME = 'neutron_port_spoof_guard_profile'
NSX_V3_NO_PSEC_PROFILE_NAME = 'nsx-default-spoof-guard-vif-profile'
NSX_V3_DHCP_PROFILE_NAME = 'neutron_port_dhcp_profile'
NSX_V3_MAC_LEARNING_PROFILE_NAME = 'neutron_port_mac_learning_profile'
NSX_V3_FW_DEFAULT_SECTION = 'OS Default Section for Neutron Security-Groups'
NSX_V3_EXCLUDED_PORT_NSGROUP_NAME = 'neutron_excluded_port_nsgroup'
# NOTE(asarfaty): the order of inheritance here is important. in order for the
# QoS notification to work, the AgentScheduler init must be called first
# NOTE(arosen): same is true with the ExtendedSecurityGroupPropertiesMixin
# this needs to be above securitygroups_db.SecurityGroupDbMixin.
# FIXME(arosen): we can solve this inheritance order issue by just mixining in
# the classes into a new class to handle the order correctly.
class NsxV3Plugin(agentschedulers_db.AZDhcpAgentSchedulerDbMixin,
extended_security_group.ExtendedSecurityGroupPropertiesMixin,
addr_pair_db.AllowedAddressPairsMixin,
db_base_plugin_v2.NeutronDbPluginV2,
extend_sg_rule.ExtendedSecurityGroupRuleMixin,
securitygroups_db.SecurityGroupDbMixin,
external_net_db.External_net_db_mixin,
extraroute_db.ExtraRoute_db_mixin,
l3_gwmode_db.L3_NAT_db_mixin,
portbindings_db.PortBindingMixin,
portsecurity_db.PortSecurityDbMixin,
extradhcpopt_db.ExtraDhcpOptMixin,
dns_db.DNSDbMixin,
mac_db.MacLearningDbMixin,
nsx_com_az.NSXAvailabilityZonesPluginCommon,
address_scope_db.AddressScopeDbMixin):
__native_bulk_support = True
__native_pagination_support = True
__native_sorting_support = True
supported_extension_aliases = ["allowed-address-pairs",
"address-scope",
"quotas",
"binding",
"extra_dhcp_opt",
"agent",
"dhcp_agent_scheduler",
"ext-gw-mode",
"security-group",
"secgroup-rule-local-ip-prefix",
"port-security",
"provider",
"external-net",
"extraroute",
"router",
"availability_zone",
"network_availability_zone",
"subnet_allocation",
"security-group-logging",
"provider-security-group"]
supported_qos_rule_types = [qos_consts.RULE_TYPE_BANDWIDTH_LIMIT,
qos_consts.RULE_TYPE_DSCP_MARKING]
@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._extension_manager = managers.ExtensionManager()
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 = v3_utils.get_nsxlib_wrapper()
# reinitialize the cluster upon fork for api workers to ensure each
# process has its own keepalive loops + state
registry.subscribe(
self.nsxlib.reinitialize_cluster,
resources.PROCESS, events.AFTER_INIT)
self._nsx_version = self.nsxlib.get_version()
LOG.info("NSX Version: %s", self._nsx_version)
self._nsx_client = self.nsxlib.client
self.cfg_group = 'nsx_v3' # group name for nsx_v3 section in nsx.ini
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._port_client = nsx_resources.LogicalPort(self._nsx_client)
self.default_section = self._init_default_section_rules()
self._process_security_group_logging()
self._router_client = nsx_resources.LogicalRouter(self._nsx_client)
self._router_port_client = nsx_resources.LogicalRouterPort(
self._nsx_client)
self._routerlib = router.RouterLib(self._router_client,
self._router_port_client,
self.nsxlib)
self._switching_profiles = nsx_resources.SwitchingProfile(
self._nsx_client)
# 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()
self.start_rpc_listeners_called = False
self._unsubscribe_callback_events()
if cfg.CONF.api_replay_mode:
self.supported_extension_aliases.append('api-replay')
# Register NSXv3 trunk driver to support trunk extensions
self.trunk_driver = trunk_driver.NsxV3TrunkDriver.create(self)
# Register extend dict methods for network and port resources.
# Each extension driver that supports extend attribute for the resources
# can add those attribute to the result.
db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
attributes.NETWORKS, ['_ext_extend_network_dict',
'_extend_availability_zone_hints'])
db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
attributes.PORTS, ['_ext_extend_port_dict'])
db_base_plugin_v2.NeutronDbPluginV2.register_dict_extend_funcs(
attributes.SUBNETS, ['_ext_extend_subnet_dict'])
def init_availability_zones(self):
# availability zones are supported only with native dhcp
# if not - the default az will be loaded and used internally only
if (cfg.CONF.nsx_v3.availability_zones and
not cfg.CONF.nsx_v3.native_dhcp_metadata):
msg = _("Availability zones are not supported without native "
"DHCP metadata")
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
self._availability_zones_data = nsx_az.NsxV3AvailabilityZones()
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") % NSX_V3_PSEC_PROFILE_NAME
raise nsx_exc.NsxPluginException(err_msg=msg)
profiles = nsx_resources.SwitchingProfile
self._no_psec_profile_id = profiles.build_switch_profile_ids(
self._switching_profiles,
self._switching_profiles.find_by_display_name(
NSX_V3_NO_PSEC_PROFILE_NAME)[0])[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': NSX_V3_DHCP_PROFILE_NAME,
'reason': str(e)})
raise nsx_exc.NsxPluginException(err_msg=msg)
self._mac_learning_profile = None
# Only create MAC Learning profile when nsxv3 version >= 1.1.0
if utils.is_nsx_version_1_1_0(self._nsx_version):
LOG.debug("Initializing NSX v3 Mac Learning switching profile")
try:
self._init_mac_learning_profile()
# Only expose the extension if it is supported
self.supported_extension_aliases.append('mac-learning')
except Exception as e:
LOG.warning("Unable to initialize NSX v3 MAC Learning "
"profile: %(name)s. Reason: %(reason)s",
{'name': NSX_V3_MAC_LEARNING_PROFILE_NAME,
'reason': e})
def _translate_configured_names_to_uuids(self):
# default tier0 router
self._default_tier0_router = None
if cfg.CONF.nsx_v3.default_tier0_router:
rtr_id = self.nsxlib.logical_router.get_id_by_name_or_id(
cfg.CONF.nsx_v3.default_tier0_router)
self._default_tier0_router = rtr_id
# 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")
if not cfg.CONF.nsx_v3.metadata_proxy:
raise cfg.RequiredOptError("metadata_proxy")
# Translate all the uuids in each of the availability
for az in self.get_azs_list():
az.translate_configured_names_to_uuids(self.nsxlib)
def _extend_port_dict_binding(self, context, port_data):
port_data[pbin.VIF_TYPE] = pbin.VIF_TYPE_OVS
port_data[pbin.VNIC_TYPE] = pbin.VNIC_NORMAL
if 'network_id' in port_data:
port_data[pbin.VIF_DETAILS] = {
# TODO(rkukura): Replace with new VIF security details
pbin.CAP_PORT_FILTER:
'security-group' in self.supported_extension_aliases,
'nsx-logical-switch-id':
self._get_network_nsx_id(context, port_data['network_id'])}
@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(
security.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.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)
def _validate_dhcp_profile(self, dhcp_profile_uuid):
dhcp_profile = self._switching_profiles.get(dhcp_profile_uuid)
if (dhcp_profile.get('resource_type') !=
nsx_resources.SwitchingProfileTypes.SWITCH_SECURITY):
msg = _("Invalid configuration on the backend for DHCP "
"switching profile %s. Switching Profile must be of type "
"'Switch Security'") % dhcp_profile_uuid
raise n_exc.InvalidInput(error_message=msg)
dhcp_filter = dhcp_profile.get('dhcp_filter')
if (not dhcp_filter or dhcp_filter.get('client_block_enabled') or
dhcp_filter.get('server_block_enabled')):
msg = _("Invalid configuration on the backend for DHCP "
"switching profile %s. DHCP Server Block and Client Block "
"must be disabled") % dhcp_profile_uuid
raise n_exc.InvalidInput(error_message=msg)
@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._switching_profiles.create_dhcp_profile(
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._switching_profiles.find_by_display_name(
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_profile(self):
with locking.LockManager.get_lock('nsxv3_mac_learning_profile_init'):
if not self._get_mac_learning_profile():
self._switching_profiles.create_mac_learning_profile(
NSX_V3_MAC_LEARNING_PROFILE_NAME,
'Neutron MAC Learning Profile',
tags=self.nsxlib.build_v3_api_version_tag())
return self._get_mac_learning_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._switching_profiles.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_port_security_profile_id(self):
return nsx_resources.SwitchingProfile.build_switch_profile_ids(
self._switching_profiles, 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._switching_profiles.find_by_display_name(
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._switching_profiles.create_spoofguard_profile(
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 _process_security_group_logging(self):
def process_security_group_logging(*args, **kwargs):
context = q_context.get_admin_context()
log_all_rules = cfg.CONF.nsx_v3.log_security_groups_allowed_traffic
secgroups = self.get_security_groups(context,
fields=['id',
sg_logging.LOGGING])
for sg in [sg for sg in secgroups
if sg[sg_logging.LOGGING] is False]:
nsgroup_id, section_id = nsx_db.get_sg_mappings(
context.session, sg['id'])
try:
self.nsxlib.firewall_section.set_rule_logging(
section_id, logging=log_all_rules)
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error("Failed to update firewall rule logging "
"for rule in section %s", section_id)
utils.spawn_n(process_security_group_logging)
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, [],
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 _init_native_dhcp(self):
try:
for az in self.get_azs_list():
nsx_resources.DhcpProfile(self._nsx_client).get(
az._native_dhcp_profile_uuid)
self._dhcp_server = nsx_resources.LogicalDhcpServer(
self._nsx_client)
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error("Unable to retrieve DHCP Profile %s, "
"native DHCP service is not supported",
az._native_dhcp_profile_uuid)
def _init_native_metadata(self):
try:
for az in self.get_azs_list():
nsx_resources.MetaDataProxy(self._nsx_client).get(
az._native_md_proxy_uuid)
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error("Unable to retrieve Metadata Proxy %s, "
"native metadata service is not supported",
az._native_md_proxy_uuid)
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 start_rpc_listeners(self):
if self.start_rpc_listeners_called:
# If called more than once - we should not create it again
return self.conn.consume_in_threads()
self._setup_rpc()
self.topic = topics.PLUGIN
self.conn = n_rpc.create_connection()
self.conn.create_consumer(self.topic, self.endpoints, fanout=False)
self.conn.create_consumer(topics.REPORTS,
[agents_db.AgentExtRpcCallback()],
fanout=False)
if self.qos_use_rpc:
qos_topic = resources_rpc.resource_type_versioned_topic(
callbacks_resources.QOS_POLICY)
self.conn.create_consumer(
qos_topic,
[resources_rpc.ResourcesPushRpcCallback()],
fanout=False)
self.start_rpc_listeners_called = True
return self.conn.consume_in_threads()
def _ext_extend_network_dict(self, result, netdb):
ctx = q_context.get_admin_context()
with db_api.context_manager.writer.using(ctx):
self._extension_manager.extend_network_dict(
ctx.session, netdb, result)
def _ext_extend_port_dict(self, result, portdb):
ctx = q_context.get_admin_context()
with db_api.context_manager.writer.using(ctx):
self._extension_manager.extend_port_dict(
ctx.session, portdb, result)
def _ext_extend_subnet_dict(self, result, subnetdb):
ctx = q_context.get_admin_context()
with db_api.context_manager.writer.using(ctx):
self._extension_manager.extend_subnet_dict(
ctx.session, subnetdb, result)
def _validate_provider_create(self, context, network_data, az):
is_provider_net = any(
validators.is_attr_set(network_data.get(f))
for f in (pnet.NETWORK_TYPE,
pnet.PHYSICAL_NETWORK,
pnet.SEGMENTATION_ID))
physical_net = network_data.get(pnet.PHYSICAL_NETWORK)
if not validators.is_attr_set(physical_net):
physical_net = None
vlan_id = network_data.get(pnet.SEGMENTATION_ID)
if not validators.is_attr_set(vlan_id):
vlan_id = None
err_msg = None
net_type = network_data.get(pnet.NETWORK_TYPE)
if validators.is_attr_set(net_type):
if net_type == utils.NsxV3NetworkTypes.FLAT:
if vlan_id is not None:
err_msg = (_("Segmentation ID cannot be specified with "
"%s network type") %
utils.NsxV3NetworkTypes.FLAT)
else:
# Set VLAN id to 0 for flat networks
vlan_id = '0'
if physical_net is None:
physical_net = az._default_vlan_tz_uuid
elif net_type == utils.NsxV3NetworkTypes.VLAN:
# Use default VLAN transport zone if physical network not given
if physical_net is None:
physical_net = az._default_vlan_tz_uuid
# Validate VLAN id
if not vlan_id:
err_msg = (_('Segmentation ID must be specified with %s '
'network type') %
utils.NsxV3NetworkTypes.VLAN)
elif not n_utils.is_valid_vlan_tag(vlan_id):
err_msg = (_('Segmentation ID %(segmentation_id)s out of '
'range (%(min_id)s through %(max_id)s)') %
{'segmentation_id': vlan_id,
'min_id': plugin_const.MIN_VLAN_TAG,
'max_id': plugin_const.MAX_VLAN_TAG})
else:
# Verify VLAN id is not already allocated
bindings = (
nsx_db.get_network_bindings_by_vlanid_and_physical_net(
context.session, vlan_id, physical_net)
)
if bindings:
raise n_exc.VlanIdInUse(
vlan_id=vlan_id, physical_network=physical_net)
elif net_type == utils.NsxV3NetworkTypes.VXLAN:
if vlan_id:
err_msg = (_("Segmentation ID cannot be specified with "
"%s network type") %
utils.NsxV3NetworkTypes.VXLAN)
else:
err_msg = (_('%(net_type_param)s %(net_type_value)s not '
'supported') %
{'net_type_param': pnet.NETWORK_TYPE,
'net_type_value': net_type})
elif is_provider_net:
# FIXME: Ideally provider-network attributes should be checked
# at the NSX backend. For now, the network_type is required,
# so the plugin can do a quick check locally.
err_msg = (_('%s is required for creating a provider network') %
pnet.NETWORK_TYPE)
else:
net_type = None
if err_msg:
raise n_exc.InvalidInput(error_message=err_msg)
if physical_net is None:
# Default to transport type overlay
physical_net = az._default_overlay_tz_uuid
return is_provider_net, net_type, physical_net, vlan_id
def _get_edge_cluster(self, tier0_uuid):
self._routerlib.validate_tier0(self.tier0_groups_dict, tier0_uuid)
tier0_info = self.tier0_groups_dict[tier0_uuid]
return tier0_info['edge_cluster_uuid']
def _validate_external_net_create(self, net_data):
is_provider_net = False
if not validators.is_attr_set(net_data.get(pnet.PHYSICAL_NETWORK)):
tier0_uuid = self._default_tier0_router
else:
tier0_uuid = net_data[pnet.PHYSICAL_NETWORK]
is_provider_net = True
self._routerlib.validate_tier0(self.tier0_groups_dict, tier0_uuid)
return (is_provider_net, utils.NetworkTypes.L3_EXT, tier0_uuid, 0)
def _create_network_at_the_backend(self, context, net_data, az):
is_provider_net, net_type, physical_net, vlan_id = (
self._validate_provider_create(context, net_data, az))
neutron_net_id = net_data.get('id') or uuidutils.generate_uuid()
# To ensure that the correct tag will be set
net_data['id'] = neutron_net_id
# 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)
# Create network on the backend
LOG.debug('create_network: %(net_name)s, %(physical_net)s, '
'%(tags)s, %(admin_state)s, %(vlan_id)s',
{'net_name': net_name,
'physical_net': physical_net,
'tags': tags,
'admin_state': admin_state,
'vlan_id': vlan_id})
nsx_result = self.nsxlib.logical_switch.create(
net_name, physical_net, tags,
admin_state=admin_state,
vlan_id=vlan_id)
return (is_provider_net,
net_type,
physical_net,
vlan_id,
nsx_result['id'])
def _is_overlay_network(self, context, network_id):
bindings = nsx_db.get_network_bindings(context.session, network_id)
# With NSX plugin, "normal" overlay networks will have no binding
return (not bindings or
bindings[0].binding_type == utils.NsxV3NetworkTypes.VXLAN)
def _extend_network_dict_provider(self, context, network, bindings=None):
if not bindings:
bindings = nsx_db.get_network_bindings(context.session,
network['id'])
# With NSX plugin, "normal" overlay networks will have no binding
if bindings:
# Network came in through provider networks API
network[pnet.NETWORK_TYPE] = bindings[0].binding_type
network[pnet.PHYSICAL_NETWORK] = bindings[0].phy_uuid
network[pnet.SEGMENTATION_ID] = bindings[0].vlan_id
def _assert_on_external_net_with_qos(self, net_data):
# Prevent creating/update external network with QoS policy
if validators.is_attr_set(net_data.get(qos_consts.QOS_POLICY_ID)):
err_msg = _("Cannot configure QOS on external networks")
raise n_exc.InvalidInput(error_message=err_msg)
def get_subnets(self, context, filters=None, fields=None, sorts=None,
limit=None, marker=None, page_reverse=False):
filters = filters or {}
lswitch_ids = filters.pop(as_providers.ADV_SERVICE_PROVIDERS, [])
if lswitch_ids:
# This is a request from Nova for metadata processing.
# Find the corresponding neutron network for each logical switch.
network_ids = filters.pop('network_id', [])
context = context.elevated()
for lswitch_id in lswitch_ids:
network_ids += nsx_db.get_net_ids(context.session, lswitch_id)
filters['network_id'] = network_ids
return super(NsxV3Plugin, self).get_subnets(
context, filters, fields, sorts, limit, marker, page_reverse)
def create_network(self, context, network):
net_data = network['network']
external = net_data.get(ext_net_extn.EXTERNAL)
is_backend_network = False
tenant_id = net_data['tenant_id']
# validate the availability zone, and get the AZ object
if az_ext.AZ_HINTS in net_data:
self.validate_availability_zones(context, 'network',
net_data[az_ext.AZ_HINTS])
az = self.get_obj_az_by_hints(net_data)
self._ensure_default_security_group(context, tenant_id)
if validators.is_attr_set(external) and external:
self._assert_on_external_net_with_qos(net_data)
is_provider_net, net_type, physical_net, vlan_id = (
self._validate_external_net_create(net_data))
else:
is_provider_net, net_type, physical_net, vlan_id, nsx_net_id = (
self._create_network_at_the_backend(context, net_data, az))
is_backend_network = True
try:
with db_api.context_manager.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)
if az_ext.AZ_HINTS in net_data:
# Update the AZ hints in the neutron object
az_hints = az_ext.convert_az_list_to_string(
net_data[az_ext.AZ_HINTS])
super(NsxV3Plugin, self).update_network(
context,
created_net['id'],
{'network': {az_ext.AZ_HINTS: az_hints}})
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 is_backend_network and cfg.CONF.nsx_v3.native_dhcp_metadata:
# Enable native metadata proxy for this network.
tags = self.nsxlib.build_v3_tags_payload(
net_data, resource_type='os-neutron-net-id',
project_name=context.tenant_name)
name = utils.get_name_and_uuid('%s-%s' % (
'mdproxy', created_net['name'] or 'network'),
created_net['id'])
md_port = self._port_client.create(
nsx_net_id, az._native_md_proxy_uuid,
tags=tags, name=name,
attachment_type=nsxlib_consts.ATTACHMENT_MDPROXY)
LOG.debug("Created MD-Proxy logical port %(port)s "
"for network %(network)s",
{'port': md_port['id'],
'network': net_data['id']})
except Exception:
with excutils.save_and_reraise_exception():
# Undo creation on the backend
LOG.exception('Failed to create network %s',
created_net['id'])
if net_type != utils.NetworkTypes.L3_EXT:
self.nsxlib.logical_switch.delete(created_net['id'])
# this extra lookup is necessary to get the
# latest db model for the extension functions
net_model = self._get_network(context, created_net['id'])
self._apply_dict_extend_functions('networks', created_net, net_model)
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,
created_net['id'],
net_data[qos_consts.QOS_POLICY_ID])
created_net[qos_consts.QOS_POLICY_ID] = (
qos_com_utils.get_network_policy_id(context, created_net['id']))
return created_net
def _has_active_port(self, context, network_id):
ports_in_use = context.session.query(models_v2.Port).filter_by(
network_id=network_id).all()
return not all([p.device_owner in
db_base_plugin_v2.AUTO_DELETE_PORT_OWNERS
for p in ports_in_use]) if ports_in_use else False
def _retry_delete_network(self, context, network_id):
"""This method attempts to retry the delete on a network if there are
AUTO_DELETE_PORT_OWNERS left. This is to avoid a race condition
between delete_network and the dhcp creating a port on the network.
"""
first_try = True
while True:
try:
with db_api.context_manager.writer.using(context):
self._process_l3_delete(context, network_id)
return super(NsxV3Plugin, self).delete_network(
context, network_id)
except n_exc.NetworkInUse:
# There is a race condition in delete_network() that we need
# to work around here. delete_network() issues a query to
# automatically delete DHCP ports and then checks to see if any
# ports exist on the network. If a network is created and
# deleted quickly, such as when running tempest, the DHCP agent
# may be creating its port for the network around the same time
# that the network is deleted. This can result in the DHCP
# port getting created in between these two queries in
# delete_network(). To work around that, we'll call
# delete_network() a second time if we get a NetworkInUse
# exception but the only port(s) that exist are ones that
# delete_network() is supposed to automatically delete.
if not first_try:
# We tried once to work around the known race condition,
# but we still got the exception, so something else is
# wrong that we can't recover from.
raise
first_try = False
if self._has_active_port(context, network_id):
# There is a port on the network that is not going to be
# automatically deleted (such as a tenant created port), so
# we have nothing else to do but raise the exception.
raise
def delete_network(self, context, network_id):
if cfg.CONF.nsx_v3.native_dhcp_metadata:
lock = 'nsxv3_network_' + network_id
with locking.LockManager.get_lock(lock):
# Disable native DHCP if there is no other existing port
# besides DHCP port.
if not self._has_active_port(context, network_id):
self._disable_native_dhcp(context, network_id)
nsx_net_id = self._get_network_nsx_id(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):
# 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:
# TODO(berlin): delete subnets public announce on the network
pass
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
providernet._raise_if_updates_provider_attributes(net_data)
extern_net = self._network_is_external(context, id)
if extern_net:
self._assert_on_external_net_with_qos(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 network['network']:
self._process_network_port_security_update(
context, network['network'], updated_net)
self._process_l3_update(context, updated_net, network['network'])
self._extend_network_dict_provider(context, updated_net)
if (not extern_net and
'name' in net_data or 'admin_state_up' in net_data):
try:
# get the nsx switch id from the DB mapping
nsx_id = self._get_network_nsx_id(context, id)
self.nsxlib.logical_switch.update(
nsx_id,
name=utils.get_name_and_uuid(net_data['name'] or 'network',
id),
admin_state=net_data.get('admin_state_up'))
# 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():
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])
return updated_net
def _has_no_dhcp_enabled_subnet(self, context, network):
# Check if there is no DHCP-enabled subnet in the network.
for subnet in network.subnets:
if subnet.enable_dhcp:
return False
return True
def _has_single_dhcp_enabled_subnet(self, context, network):
# Check if there is only one DHCP-enabled subnet in the network.
count = 0
for subnet in network.subnets:
if subnet.enable_dhcp:
count += 1
if count > 1:
return False
return True if count == 1 else False
def _enable_native_dhcp(self, context, network, subnet):
# Enable native DHCP service on the backend for this network.
# First create a Neutron DHCP port and use its assigned IP
# address as the DHCP server address in an API call to create a
# LogicalDhcpServer on the backend. Then create the corresponding
# logical port for the Neutron port with DHCP attachment as the
# LogicalDhcpServer UUID.
# Delete obsolete settings if exist. This could happen when a
# previous failed transaction was rolled back. But the backend
# entries are still there.
self._disable_native_dhcp(context, network['id'])
# Get existing ports on subnet.
existing_ports = super(NsxV3Plugin, self).get_ports(
context, filters={'network_id': [network['id']],
'fixed_ips': {'subnet_id': [subnet['id']]}})
az = self.get_network_az(network)
port_data = {
"name": "",
"admin_state_up": True,
"device_id": az._native_dhcp_profile_uuid,
"device_owner": const.DEVICE_OWNER_DHCP,
"network_id": network['id'],
"tenant_id": network["tenant_id"],
"mac_address": const.ATTR_NOT_SPECIFIED,
"fixed_ips": [{"subnet_id": subnet['id']}]
}
neutron_port = super(NsxV3Plugin, self).create_port(
context, {'port': port_data})
net_tags = self.nsxlib.build_v3_tags_payload(
network, resource_type='os-neutron-net-id',
project_name=context.tenant_name)
server_data = self.nsxlib.native_dhcp.build_server_config(
network, subnet, neutron_port, net_tags,
default_dns_nameservers=az.nameservers,
default_dns_domain=az.dns_domain)
server_data['dhcp_profile_id'] = az._native_dhcp_profile_uuid
nsx_net_id = self._get_network_nsx_id(context, network['id'])
port_tags = self.nsxlib.build_v3_tags_payload(
neutron_port, resource_type='os-neutron-dport-id',
project_name=context.tenant_name)
dhcp_server = None
try:
dhcp_server = self._dhcp_server.create(**server_data)
LOG.debug("Created logical DHCP server %(server)s for network "
"%(network)s",
{'server': dhcp_server['id'], 'network': network['id']})
name = self._get_port_name(context, port_data)
nsx_port = self._port_client.create(
nsx_net_id, dhcp_server['id'], tags=port_tags, name=name,
attachment_type=nsxlib_consts.ATTACHMENT_DHCP,
switch_profile_ids=[self._dhcp_profile])
LOG.debug("Created DHCP logical port %(port)s for "
"network %(network)s",
{'port': nsx_port['id'], 'network': network['id']})
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error("Unable to create logical DHCP server for "
"network %s", network['id'])
if dhcp_server:
self._dhcp_server.delete(dhcp_server['id'])
super(NsxV3Plugin, self).delete_port(
context, neutron_port['id'])
try:
# Add neutron_port_id -> nsx_port_id mapping to the DB.
nsx_db.add_neutron_nsx_port_mapping(
context.session, neutron_port['id'], nsx_net_id,
nsx_port['id'])
# Add neutron_net_id -> dhcp_service_id mapping to the DB.
nsx_db.add_neutron_nsx_service_binding(
context.session, network['id'], neutron_port['id'],
nsxlib_consts.SERVICE_DHCP, dhcp_server['id'])
except (db_exc.DBError, sql_exc.TimeoutError):
with excutils.save_and_reraise_exception():
LOG.error("Failed to create mapping for DHCP port %s,"
"deleting port and logical DHCP server",
neutron_port['id'])
self._dhcp_server.delete(dhcp_server['id'])
self._cleanup_port(context, neutron_port['id'], nsx_port['id'])
# Configure existing ports to work with the new DHCP server
try:
for port_data in existing_ports:
self._add_dhcp_binding(context, port_data)
except Exception:
LOG.error('Unable to create DHCP bindings for existing ports '
'on subnet %s', subnet['id'])
def _disable_native_dhcp(self, context, network_id):
# Disable native DHCP service on the backend for this network.
# First delete the DHCP port in this network. Then delete the
# corresponding LogicalDhcpServer for this network.
dhcp_service = nsx_db.get_nsx_service_binding(
context.session, network_id, nsxlib_consts.SERVICE_DHCP)
if not dhcp_service:
return
if dhcp_service['port_id']:
try:
self.delete_port(context, dhcp_service['port_id'])
except Exception:
# This could happen when the port has been manually deleted.
LOG.error("Failed to delete DHCP port %(port)s for "
"network %(network)s",
{'port': dhcp_service['port_id'],
'network': network_id})
else:
LOG.error("DHCP port is not configured for network %s",
network_id)
try:
self._dhcp_server.delete(dhcp_service['nsx_service_id'])
LOG.debug("Deleted logical DHCP server %(server)s for network "
"%(network)s",
{'server': dhcp_service['nsx_service_id'],
'network': network_id})
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error("Unable to delete logical DHCP server %(server)s "
"for network %(network)s",
{'server': dhcp_service['nsx_service_id'],
'network': network_id})
try:
# Delete neutron_id -> dhcp_service_id mapping from the DB.
nsx_db.delete_neutron_nsx_service_binding(
context.session, network_id, nsxlib_consts.SERVICE_DHCP)
# Delete all DHCP bindings under this DHCP server from the DB.
nsx_db.delete_neutron_nsx_dhcp_bindings_by_service_id(
context.session, dhcp_service['nsx_service_id'])
except db_exc.DBError:
with excutils.save_and_reraise_exception():
LOG.error("Unable to delete DHCP server mapping for "
"network %s", network_id)
def _validate_address_space(self, subnet):
cidr = subnet.get('cidr')
if (not validators.is_attr_set(cidr) or
netaddr.IPNetwork(cidr).version != 4):
return
# Check if subnet overlaps with shared address space.
# This is checked on the backend when attaching subnet to a router.
if netaddr.IPSet([cidr]) & netaddr.IPSet(['100.64.0.0/10']):
msg = _("Subnet overlaps with shared address space 100.64.0.0/10")
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
def _create_bulk_with_callback(self, resource, context, request_items,
post_create_func=None, rollback_func=None):
# This is a copy of the _create_bulk() in db_base_plugin_v2.py,
# but extended with user-provided callback functions.
objects = []
collection = "%ss" % resource
items = request_items[collection]
try:
with db_api.context_manager.writer.using(context):
for item in items:
obj_creator = getattr(self, 'create_%s' % resource)
obj = obj_creator(context, item)
objects.append(obj)
if post_create_func:
# The user-provided post_create function is called
# after a new object is created.
post_create_func(obj)
except Exception:
if rollback_func:
# The user-provided rollback function is called when an
# exception occurred.
for obj in objects:
rollback_func(obj)
# Note that the session.rollback() function is called here.
# session.rollback() will invoke transaction.rollback() on
# the transaction this session maintains. The latter will
# deactive the transaction and clear the session's cache.
#
# But depending on where the exception occurred,
# transaction.rollback() may have already been called
# internally before reaching here.
#
# For example, if the exception happened under a
# "with session.begin(subtransactions=True):" statement
# anywhere in the middle of processing obj_creator(),
# transaction.__exit__() will invoke transaction.rollback().
# Thus when the exception reaches here, the session's cache
# is already empty.
context.session.rollback()
with excutils.save_and_reraise_exception():
LOG.error("An exception occurred while creating "
"the %(resource)s:%(item)s",
{'resource': resource, 'item': item})
return objects
def _post_create_subnet(self, context, subnet):
LOG.debug("Collect native DHCP entries for network %s",
subnet['network_id'])
dhcp_service = nsx_db.get_nsx_service_binding(
context.session, subnet['network_id'], nsxlib_consts.SERVICE_DHCP)
if dhcp_service:
_net_id, nsx_port_id = nsx_db.get_nsx_switch_and_port_id(
context.session, dhcp_service['port_id'])
return {'nsx_port_id': nsx_port_id,
'nsx_service_id': dhcp_service['nsx_service_id']}
def _rollback_subnet(self, subnet, dhcp_info):
LOG.debug("Rollback native DHCP entries for network %s",
subnet['network_id'])
if dhcp_info:
try:
self._port_client.delete(dhcp_info['nsx_port_id'])
except Exception as e:
LOG.error("Failed to delete logical port %(id)s "
"during rollback. Exception: %(e)s",
{'id': dhcp_info['nsx_port_id'], 'e': e})
try:
self._dhcp_server.delete(dhcp_info['nsx_service_id'])
except Exception as e:
LOG.error("Failed to delete logical DHCP server %(id)s "
"during rollback. Exception: %(e)s",
{'id': dhcp_info['nsx_service_id'], 'e': e})
def create_subnet_bulk(self, context, subnets):
# Maintain a local cache here because when the rollback function
# is called, the cache in the session may have already been cleared.
_subnet_dhcp_info = {}
def _post_create(subnet):
if subnet['enable_dhcp']:
_subnet_dhcp_info[subnet['id']] = self._post_create_subnet(
context, subnet)
def _rollback(subnet):
if subnet['enable_dhcp'] and subnet['id'] in _subnet_dhcp_info:
self._rollback_subnet(subnet, _subnet_dhcp_info[subnet['id']])
del _subnet_dhcp_info[subnet['id']]
if cfg.CONF.nsx_v3.native_dhcp_metadata:
return self._create_bulk_with_callback('subnet', context, subnets,
_post_create, _rollback)
else:
return self._create_bulk('subnet', context, subnets)
def create_subnet(self, context, subnet):
self._validate_address_space(subnet['subnet'])
# TODO(berlin): public external subnet announcement
if (cfg.CONF.nsx_v3.native_dhcp_metadata and
subnet['subnet'].get('enable_dhcp', False)):
lock = 'nsxv3_network_' + subnet['subnet']['network_id']
with locking.LockManager.get_lock(lock):
# Check if it is on an overlay network and is the first
# DHCP-enabled subnet to create.
if self._is_overlay_network(
context, subnet['subnet']['network_id']):
network = self._get_network(
context, subnet['subnet']['network_id'])
if self._has_no_dhcp_enabled_subnet(context, network):
created_subnet = super(
NsxV3Plugin, self).create_subnet(context, subnet)
self._extension_manager.process_create_subnet(context,
subnet['subnet'], created_subnet)
self._enable_native_dhcp(context, network,
created_subnet)
msg = None
else:
msg = (_("Can not create more than one DHCP-enabled "
"subnet in network %s") %
subnet['subnet']['network_id'])
else:
msg = _("Native DHCP is not supported for non-overlay "
"network %s") % subnet['subnet']['network_id']
if msg:
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
else:
created_subnet = super(NsxV3Plugin, self).create_subnet(
context, subnet)
return created_subnet
def delete_subnet(self, context, subnet_id):
# TODO(berlin): cancel public external subnet announcement
if cfg.CONF.nsx_v3.native_dhcp_metadata:
subnet = self.get_subnet(context, subnet_id)
if subnet['enable_dhcp']:
lock = 'nsxv3_network_' + subnet['network_id']
with locking.LockManager.get_lock(lock):
# Check if it is the last DHCP-enabled subnet to delete.
network = self._get_network(context, subnet['network_id'])
if self._has_single_dhcp_enabled_subnet(context, network):
try:
self._disable_native_dhcp(context, network['id'])
except Exception as e:
LOG.error("Failed to disable native DHCP for"
"network %(id)s. Exception: %(e)s",
{'id': network['id'], 'e': e})
super(NsxV3Plugin, self).delete_subnet(
context, subnet_id)
return
super(NsxV3Plugin, self).delete_subnet(context, subnet_id)
def update_subnet(self, context, subnet_id, subnet):
updated_subnet = None
if cfg.CONF.nsx_v3.native_dhcp_metadata:
orig_subnet = self.get_subnet(context, subnet_id)
enable_dhcp = subnet['subnet'].get('enable_dhcp')
if (enable_dhcp is not None and
enable_dhcp != orig_subnet['enable_dhcp']):
lock = 'nsxv3_network_' + orig_subnet['network_id']
with locking.LockManager.get_lock(lock):
network = self._get_network(
context, orig_subnet['network_id'])
if enable_dhcp:
if self._is_overlay_network(
context, orig_subnet['network_id']):
if self._has_no_dhcp_enabled_subnet(
context, network):
updated_subnet = super(
NsxV3Plugin, self).update_subnet(
context, subnet_id, subnet)
self._extension_manager.process_update_subnet(
context, subnet['subnet'], updated_subnet)
self._enable_native_dhcp(context, network,
updated_subnet)
msg = None
else:
msg = (_("Multiple DHCP-enabled subnets is "
"not allowed in network %s") %
orig_subnet['network_id'])
else:
msg = (_("Native DHCP is not supported for "
"non-overlay network %s") %
orig_subnet['network_id'])
if msg:
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
elif self._has_single_dhcp_enabled_subnet(context,
network):
self._disable_native_dhcp(context, network['id'])
updated_subnet = super(
NsxV3Plugin, self).update_subnet(
context, subnet_id, subnet)
self._extension_manager.process_update_subnet(
context, subnet['subnet'], updated_subnet)
if not updated_subnet:
updated_subnet = super(NsxV3Plugin, self).update_subnet(
context, subnet_id, subnet)
self._extension_manager.process_update_subnet(
context, subnet['subnet'], updated_subnet)
# Check if needs to update logical DHCP server for native DHCP.
if (cfg.CONF.nsx_v3.native_dhcp_metadata and
updated_subnet['enable_dhcp']):
kwargs = {}
for key in ('dns_nameservers', 'gateway_ip'):
if key in subnet['subnet']:
value = subnet['subnet'][key]
if value != orig_subnet[key]:
kwargs[key] = value
if kwargs:
dhcp_service = nsx_db.get_nsx_service_binding(
context.session, orig_subnet['network_id'],
nsxlib_consts.SERVICE_DHCP)
if dhcp_service:
try:
self._dhcp_server.update(
dhcp_service['nsx_service_id'], **kwargs)
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error(
"Unable to update logical DHCP server "
"%(server)s for network %(network)s",
{'server': dhcp_service['nsx_service_id'],
'network': orig_subnet['network_id']})
if 'gateway_ip' in kwargs:
# Need to update the static binding of every VM in
# this logical DHCP server.
bindings = nsx_db.get_nsx_dhcp_bindings_by_service(
context.session, dhcp_service['nsx_service_id'])
for binding in bindings:
port = self._get_port(context, binding['port_id'])
self._update_dhcp_binding_on_server(
context, binding, port['mac_address'],
binding['ip_address'], kwargs['gateway_ip'],
port['network_id'])
if (cfg.CONF.nsx_v3.metadata_on_demand and
not cfg.CONF.nsx_v3.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']:
# NOTE(arosen): nsx-v3 doesn't seem to handle ipv6 addresses
# currently so for now we remove them here and do not pass
# them to the backend which would raise an error.
if netaddr.IPNetwork(fixed_ip['ip_address']).version == 6:
continue
address_bindings.append(nsx_resources.PacketAddressClassifier(
fixed_ip['ip_address'], port['mac_address'], None))
for pair in port.get(addr_pair.ADDRESS_PAIRS):
address_bindings.append(nsx_resources.PacketAddressClassifier(
pair['ip_address'], pair['mac_address'], None))
return address_bindings
def _extend_get_network_dict_provider(self, context, network):
self._extend_network_dict_provider(context, network)
network[qos_consts.QOS_POLICY_ID] = (qos_com_utils.
get_network_policy_id(context, network['id']))
def get_network(self, context, id, fields=None):
with db_api.context_manager.reader.using(context):
# Get network from Neutron database
network = self._get_network(context, id)
# Don't do field selection here otherwise we won't be able to add
# provider networks fields
net = self._make_network_dict(network, context=context)
self._extend_get_network_dict_provider(context, net)
return db_utils.resource_fields(net, fields)
def get_networks(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
# Get networks from Neutron database
filters = filters or {}
with db_api.context_manager.reader.using(context):
networks = (
super(NsxV3Plugin, self).get_networks(
context, filters, fields, sorts,
limit, marker, page_reverse))
# Add provider network fields
for net in networks:
self._extend_get_network_dict_provider(context, net)
return (networks if not fields else
[db_utils.resource_fields(network,
fields) for network in networks])
def _get_data_from_binding_profile(self, context, port):
if (pbin.PROFILE not in port or
not validators.is_attr_set(port[pbin.PROFILE])):
return None, None
parent_name = (
port[pbin.PROFILE].get('parent_name'))
tag = port[pbin.PROFILE].get('tag')
if not any((parent_name, tag)):
# An empty profile is fine.
return None, None
if not all((parent_name, tag)):
# If one is set, they both must be set.
msg = _('Invalid binding:profile. parent_name and tag are '
'both required.')
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
if not isinstance(parent_name, six.string_types):
msg = _('Invalid binding:profile. parent_name "%s" must be '
'a string.') % parent_name
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
if not n_utils.is_valid_vlan_tag(tag):
msg = _('Invalid binding:profile. tag "%s" must be '
'an int between 1 and 4096, inclusive.') % tag
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
# Make sure we can successfully look up the port indicated by
# parent_name. Just let it raise the right exception if there is a
# problem.
# NOTE(arosen): For demo reasons the parent_port might not be a
# a neutron managed port so for now do not perform this check.
# self.get_port(context, parent_name)
return parent_name, tag
def _get_port_name(self, context, port_data):
device_owner = port_data.get('device_owner')
device_id = port_data.get('device_id')
if device_owner == l3_db.DEVICE_OWNER_ROUTER_INTF and device_id:
router = self._get_router(context, device_id)
name = utils.get_name_and_uuid(
router['name'] or 'router', port_data['id'], tag='port')
elif device_owner == const.DEVICE_OWNER_DHCP:
network = self.get_network(context, port_data['network_id'])
name = utils.get_name_and_uuid('%s-%s' % (
'dhcp',
network['name'] or 'network'),
network['id'])
elif device_owner.startswith(const.DEVICE_OWNER_COMPUTE_PREFIX):
name = utils.get_name_and_uuid(
port_data['name'] or 'instance-port', port_data['id'])
else:
name = port_data['name']
return name
def _get_qos_profile_id(self, context, policy_id):
switch_profile_id = nsx_db.get_switch_profile_by_qos_policy(
context.session, policy_id)
qos_profile = self.nsxlib.qos_switching_profile.get(switch_profile_id)
if qos_profile:
profile_ids = self._switching_profiles.build_switch_profile_ids(
self._switching_profiles, 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 _create_port_at_the_backend(self, context, port_data,
l2gw_port_check, psec_is_on):
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 device_owner != l3_db.DEVICE_OWNER_ROUTER_INTF:
if ((device_owner == const.DEVICE_OWNER_DHCP and
not cfg.CONF.nsx_v3.native_dhcp_metadata) or
(device_owner != const.DEVICE_OWNER_DHCP and
not psec_is_on)):
tags.append({'scope': security.PORT_SG_SCOPE,
'tag': nsxlib_consts.EXCLUDE_PORT})
if utils.is_nsx_version_1_1_0(self._nsx_version):
# 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.nsxlib.ns_group.get_lport_tags(
port_data[ext_sg.SECURITYGROUPS] +
port_data[provider_sg.PROVIDER_SECURITYGROUPS])
parent_name, tag = self._get_data_from_binding_profile(
context, port_data)
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 = []
mac_learning_profile_set = False
if psec_is_on:
address_pairs = port_data.get(addr_pair.ADDRESS_PAIRS)
if validators.is_attr_set(address_pairs) and address_pairs:
mac_learning_profile_set = True
profiles.append(self._get_port_security_profile_id())
if device_owner == const.DEVICE_OWNER_DHCP:
profiles.append(self._dhcp_profile)
# Add QoS switching profile, if exists
qos_policy_id = None
if validators.is_attr_set(port_data.get(qos_consts.QOS_POLICY_ID)):
qos_policy_id = port_data[qos_consts.QOS_POLICY_ID]
elif device_owner.startswith(const.DEVICE_OWNER_COMPUTE_PREFIX):
# check if the network of this port has a policy
qos_policy_id = qos_com_utils.get_network_policy_id(
context, port_data['network_id'])
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
if (self._mac_learning_profile and
(mac_learning_profile_set or
(validators.is_attr_set(port_data.get(mac_ext.MAC_LEARNING)) and
port_data.get(mac_ext.MAC_LEARNING) is True))):
profiles.append(self._mac_learning_profile)
name = self._get_port_name(context, port_data)
nsx_net_id = port_data[pbin.VIF_DETAILS]['nsx-logical-switch-id']
try:
result = self._port_client.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,
parent_vif_id=parent_name, traffic_tag=tag,
switch_profile_ids=profiles)
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)
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 _validate_address_pairs(self, address_pairs):
for pair in address_pairs:
ip = pair.get('ip_address')
if not utils.is_ipv4_ip_address(ip):
raise nsx_exc.InvalidIPAddress(ip_address=ip)
def _create_port_preprocess_security(
self, context, port, port_data, neutron_db):
(port_security, has_ip) = self._determine_port_security_and_has_ip(
context, port_data)
port_data[psec.PORTSECURITY] = port_security
self._process_port_port_security_create(
context, port_data, neutron_db)
# allowed address pair checks
address_pairs = port_data.get(addr_pair.ADDRESS_PAIRS)
if validators.is_attr_set(address_pairs):
if not port_security:
raise addr_pair.AddressPairAndPortSecurityRequired()
else:
self._validate_address_pairs(address_pairs)
self._process_create_allowed_address_pairs(
context, neutron_db,
address_pairs)
else:
# remove ATTR_NOT_SPECIFIED
port_data[addr_pair.ADDRESS_PAIRS] = []
if port_security and has_ip:
self._ensure_default_security_group_on_port(context, port)
elif self._check_update_has_security_groups(
{'port': port_data}):
raise psec.PortSecurityAndIPRequiredForSecurityGroups()
port_data[ext_sg.SECURITYGROUPS] = (
self._get_security_groups_on_port(context, port))
return port_security, has_ip
def _assert_on_external_net_with_compute(self, port_data):
# Prevent creating port with device owner prefix 'compute'
# on external networks.
device_owner = port_data.get('device_owner')
if (device_owner is not None and
device_owner.startswith(const.DEVICE_OWNER_COMPUTE_PREFIX)):
err_msg = _("Unable to update/create a port with an external "
"network")
LOG.warning(err_msg)
raise n_exc.InvalidInput(error_message=err_msg)
def _cleanup_port(self, context, port_id, lport_id):
super(NsxV3Plugin, self).delete_port(context, port_id)
if lport_id:
self._port_client.delete(lport_id)
def _assert_on_external_net_port_with_qos(self, port_data):
# Prevent creating/update port with QoS policy
# on external networks.
if validators.is_attr_set(port_data.get(qos_consts.QOS_POLICY_ID)):
err_msg = _("Unable to update/create a port with an external "
"network and a QoS policy")
LOG.warning(err_msg)
raise n_exc.InvalidInput(error_message=err_msg)
def _assert_on_router_port_with_qos(self, port_data, device_owner):
# Prevent creating/update port with QoS policy
# on router-interface ports.
if (device_owner == l3_db.DEVICE_OWNER_ROUTER_INTF and
validators.is_attr_set(port_data.get(qos_consts.QOS_POLICY_ID))):
err_msg = _("Unable to update/create a router port with a QoS "
"policy")
LOG.warning(err_msg)
raise n_exc.InvalidInput(error_message=err_msg)
def _filter_ipv4_dhcp_fixed_ips(self, context, fixed_ips):
ips = []
for fixed_ip in fixed_ips:
if netaddr.IPNetwork(fixed_ip['ip_address']).version != 4:
continue
with db_api.context_manager.reader.using(context):
subnet = self.get_subnet(context, fixed_ip['subnet_id'])
if subnet['enable_dhcp']:
ips.append(fixed_ip)
return ips
def _add_dhcp_binding(self, context, port):
if not utils.is_port_dhcp_configurable(port):
return
dhcp_service = nsx_db.get_nsx_service_binding(
context.session, port['network_id'], nsxlib_consts.SERVICE_DHCP)
if not dhcp_service:
return
for fixed_ip in self._filter_ipv4_dhcp_fixed_ips(
context, port['fixed_ips']):
binding = self._add_dhcp_binding_on_server(
context, dhcp_service['nsx_service_id'], fixed_ip['subnet_id'],
fixed_ip['ip_address'], port)
try:
nsx_db.add_neutron_nsx_dhcp_binding(
context.session, port['id'], fixed_ip['subnet_id'],
fixed_ip['ip_address'], dhcp_service['nsx_service_id'],
binding['id'])
except (db_exc.DBError, sql_exc.TimeoutError):
LOG.error("Failed to add mapping of DHCP binding "
"%(binding)s for port %(port)s, deleting"
"DHCP binding on server",
{'binding': binding['id'], 'port': port['id']})
self._delete_dhcp_binding_on_server(context, binding)
def _validate_extra_dhcp_options(self, opts):
if not opts or not cfg.CONF.nsx_v3.native_dhcp_metadata:
return
for opt in opts:
opt_name = opt['opt_name']
opt_val = opt['opt_value']
if opt_name == 'classless-static-route':
# separate validation for option121
if opt_val is not None:
try:
net, ip = opt_val.split(',')
except Exception:
msg = (_("Bad value %(val)s for DHCP option "
"%(name)s") % {'name': opt_name,
'val': opt_val})
raise n_exc.InvalidInput(error_message=msg)
elif not self._dhcp_server.get_dhcp_opt_code(opt_name):
msg = (_("DHCP option %s is not supported") % opt_name)
raise n_exc.InvalidInput(error_message=msg)
def _get_dhcp_options(self, context, ip, extra_dhcp_opts, net_id):
# Always add option121.
net_az = self.get_network_az_by_net_id(context, net_id)
options = {'option121': {'static_routes': [
{'network': '%s' % net_az.native_metadata_route,
'next_hop': ip}]}}
# Adding extra options only if configured on port
if extra_dhcp_opts:
other_opts = []
for opt in extra_dhcp_opts:
opt_name = opt['opt_name']
if opt['opt_value'] is not None:
# None value means - delete this option. Since we rebuild
# the options from scratch, it can be ignored.
opt_val = opt['opt_value']
if opt_name == 'classless-static-route':
# Add to the option121 static routes
net, ip = opt_val.split(',')
options['option121']['static_routes'].append({
'network': net, 'next_hop': ip})
else:
other_opts.append({
'code': self._dhcp_server.get_dhcp_opt_code(
opt_name),
'values': [opt_val]})
if other_opts:
options['others'] = other_opts
return options
def _add_dhcp_binding_on_server(self, context, dhcp_service_id, subnet_id,
ip, port):
try:
hostname = 'host-%s' % ip.replace('.', '-')
gateway_ip = self.get_subnet(
context, subnet_id).get('gateway_ip')
options = self._get_dhcp_options(
context, ip, port.get(ext_edo.EXTRADHCPOPTS),
port['network_id'])
binding = self._dhcp_server.create_binding(
dhcp_service_id, port['mac_address'], ip, hostname,
cfg.CONF.nsx_v3.dhcp_lease_time, options, gateway_ip)
LOG.debug("Created static binding (mac: %(mac)s, ip: %(ip)s, "
"gateway: %(gateway)s, options: %(options)s) for port "
"%(port)s on logical DHCP server %(server)s",
{'mac': port['mac_address'], 'ip': ip,
'gateway': gateway_ip, 'options': options,
'port': port['id'],
'server': dhcp_service_id})
return binding
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error("Unable to create static binding (mac: %(mac)s, "
"ip: %(ip)s, gateway: %(gateway)s, options: "
"%(options)s) for port %(port)s on logical DHCP "
"server %(server)s",
{'mac': port['mac_address'], 'ip': ip,
'gateway': gateway_ip, 'options': options,
'port': port['id'],
'server': dhcp_service_id})
def _delete_dhcp_binding(self, context, port):
# Do not check device_owner here because Nova may have already
# deleted that before Neutron's port deletion.
bindings = nsx_db.get_nsx_dhcp_bindings(context.session, port['id'])
for binding in bindings:
self._delete_dhcp_binding_on_server(context, binding)
try:
nsx_db.delete_neutron_nsx_dhcp_binding(
context.session, binding['port_id'],
binding['nsx_binding_id'])
except db_exc.DBError:
LOG.error("Unable to delete mapping of DHCP binding "
"%(binding)s for port %(port)s",
{'binding': binding['nsx_binding_id'],
'port': binding['port_id']})
def _delete_dhcp_binding_on_server(self, context, binding):
try:
self._dhcp_server.delete_binding(
binding['nsx_service_id'], binding['nsx_binding_id'])
LOG.debug("Deleted static binding for port %(port)s) on "
"logical DHCP server %(server)s",
{'port': binding['port_id'],
'server': binding['nsx_service_id']})
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error("Unable to delete static binding for port "
"%(port)s) on logical DHCP server %(server)s",
{'port': binding['port_id'],
'server': binding['nsx_service_id']})
def _find_dhcp_binding(self, subnet_id, ip_address, bindings):
for binding in bindings:
if (subnet_id == binding['subnet_id'] and
ip_address == binding['ip_address']):
return binding
def _update_dhcp_binding(self, context, old_port, new_port):
# First check if any IPv4 address in fixed_ips is changed.
# Then update DHCP server setting or DHCP static binding
# depending on the port type.
# Note that Neutron allows a port with multiple IPs in the
# same subnet. But backend DHCP server may not support that.
if (utils.is_port_dhcp_configurable(old_port) !=
utils.is_port_dhcp_configurable(new_port)):
# Note that the device_owner could be changed,
# but still needs DHCP binding.
if utils.is_port_dhcp_configurable(old_port):
self._delete_dhcp_binding(context, old_port)
else:
self._add_dhcp_binding(context, new_port)
return
# Collect IPv4 DHCP addresses from original and updated fixed_ips
# in the form of [(subnet_id, ip_address)].
old_fixed_ips = set([(fixed_ip['subnet_id'], fixed_ip['ip_address'])
for fixed_ip in self._filter_ipv4_dhcp_fixed_ips(
context, old_port['fixed_ips'])])
new_fixed_ips = set([(fixed_ip['subnet_id'], fixed_ip['ip_address'])
for fixed_ip in self._filter_ipv4_dhcp_fixed_ips(
context, new_port['fixed_ips'])])
# Find out the subnet/IP differences before and after the update.
ips_to_add = list(new_fixed_ips - old_fixed_ips)
ips_to_delete = list(old_fixed_ips - new_fixed_ips)
ip_change = (ips_to_add or ips_to_delete)
if old_port["device_owner"] == const.DEVICE_OWNER_DHCP and ip_change:
# Update backend DHCP server address if the IP address of a DHCP
# port is changed.
if len(new_fixed_ips) != 1:
msg = _("Can only configure one IP address on a DHCP server")
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
# Locate the backend DHCP server for this DHCP port.
dhcp_service = nsx_db.get_nsx_service_binding(
context.session, old_port['network_id'],
nsxlib_consts.SERVICE_DHCP)
if dhcp_service:
new_ip = ips_to_add[0][1]
try:
self._dhcp_server.update(dhcp_service['nsx_service_id'],
server_ip=new_ip)
LOG.debug("Updated IP %(ip)s for logical DHCP server "
"%(server)s",
{'ip': new_ip,
'server': dhcp_service['nsx_service_id']})
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error("Unable to update IP %(ip)s for logical "
"DHCP server %(server)s",
{'ip': new_ip,
'server': dhcp_service['nsx_service_id']})
elif utils.is_port_dhcp_configurable(old_port):
# Update static DHCP bindings for a compute port.
bindings = nsx_db.get_nsx_dhcp_bindings(context.session,
old_port['id'])
dhcp_opts = new_port.get(ext_edo.EXTRADHCPOPTS)
dhcp_opts_changed = (old_port[ext_edo.EXTRADHCPOPTS] !=
new_port[ext_edo.EXTRADHCPOPTS])
if ip_change:
# If IP address is changed, update associated DHCP bindings,
# metadata route, and default hostname.
# Mac address (if changed) will be updated at the same time.
if ([subnet_id for (subnet_id, ip) in ips_to_add] ==
[subnet_id for (subnet_id, ip) in ips_to_delete]):
# No change on subnet_id, just update corresponding IPs.
for i, (subnet_id, ip) in enumerate(ips_to_delete):
binding = self._find_dhcp_binding(subnet_id, ip,
bindings)
if binding:
self._update_dhcp_binding_on_server(
context, binding, new_port['mac_address'],
ips_to_add[i][1], old_port['network_id'],
dhcp_opts=dhcp_opts)
else:
for (subnet_id, ip) in ips_to_delete:
binding = self._find_dhcp_binding(subnet_id, ip,
bindings)
if binding:
self._delete_dhcp_binding_on_server(context,
binding)
if ips_to_add:
dhcp_service = nsx_db.get_nsx_service_binding(
context.session, new_port['network_id'],
nsxlib_consts.SERVICE_DHCP)
if dhcp_service:
for (subnet_id, ip) in ips_to_add:
self._add_dhcp_binding_on_server(
context, dhcp_service['nsx_service_id'],
subnet_id, ip, new_port)
elif (old_port['mac_address'] != new_port['mac_address'] or
dhcp_opts_changed):
# If only Mac address/dhcp opts is changed,
# update it in all associated DHCP bindings.
for binding in bindings:
self._update_dhcp_binding_on_server(
context, binding, new_port['mac_address'],
binding['ip_address'], old_port['network_id'],
dhcp_opts=dhcp_opts if dhcp_opts_changed else None)
def _update_dhcp_binding_on_server(self, context, binding, mac, ip,
net_id, gateway_ip=False,
dhcp_opts=None):
try:
data = {'mac_address': mac, 'ip_address': ip}
if ip != binding['ip_address']:
data['host_name'] = 'host-%s' % ip.replace('.', '-')
data['options'] = self._get_dhcp_options(
context, ip, dhcp_opts, net_id)
elif dhcp_opts is not None:
data['options'] = self._get_dhcp_options(
context, ip, dhcp_opts, net_id)
if gateway_ip is not False:
# Note that None is valid for gateway_ip, means deleting it.
data['gateway_ip'] = gateway_ip
self._dhcp_server.update_binding(
binding['nsx_service_id'], binding['nsx_binding_id'], **data)
LOG.debug("Updated static binding (mac: %(mac)s, ip: %(ip)s, "
"gateway: %(gateway)s) for port %(port)s on "
"logical DHCP server %(server)s",
{'mac': mac, 'ip': ip, 'gateway': gateway_ip,
'port': binding['port_id'],
'server': binding['nsx_service_id']})
except nsx_lib_exc.ManagerError:
with excutils.save_and_reraise_exception():
LOG.error("Unable to update static binding (mac: %(mac)s, "
"ip: %(ip)s, gateway: %(gateway)s) for port "
"%(port)s on logical DHCP server %(server)s",
{'mac': mac, 'ip': ip, 'gateway': gateway_ip,
'port': binding['port_id'],
'server': binding['nsx_service_id']})
def _update_lport_with_security_groups(self, context, lport_id,
original, updated):
# translate the neutron sg ids to nsx ids, and call nsxlib
nsx_origial = nsx_db.get_nsx_security_group_ids(context.session,
original)
nsx_updated = nsx_db.get_nsx_security_group_ids(context.session,
updated)
self.nsxlib.ns_group.update_lport(
context, lport_id, nsx_origial, nsx_updated)
def create_port(self, context, port, l2gw_port_check=False):
port_data = port['port']
dhcp_opts = port_data.get(ext_edo.EXTRADHCPOPTS)
self._validate_extra_dhcp_options(dhcp_opts)
# TODO(salv-orlando): Undo logical switch creation on failure
with db_api.context_manager.writer.using(context):
is_external_net = self._network_is_external(
context, port_data['network_id'])
if is_external_net:
self._assert_on_external_net_with_compute(port_data)
self._assert_on_external_net_port_with_qos(port_data)
self._assert_on_router_port_with_qos(
port_data, port_data.get('device_owner'))
neutron_db = super(NsxV3Plugin, self).create_port(context, port)
self._extension_manager.process_create_port(
context, port_data, neutron_db)
port["port"].update(neutron_db)
(is_psec_on, has_ip) = self._create_port_preprocess_security(
context, port, port_data, neutron_db)
self._process_portbindings_create_and_update(
context, port['port'], port_data)
self._process_port_create_extra_dhcp_opts(
context, port_data, dhcp_opts)
# handle adding security groups to port
(sgids, provider_groups) = self._get_port_security_groups_lists(
context, port)
self._process_port_create_security_group(
context, port_data, sgids)
self._process_port_create_provider_security_group(
context, port_data, provider_groups)
# add provider groups to other security groups list.
# sgids is a set() so we need to | it in.
if provider_groups:
sgids = list(set(sgids) | set(provider_groups))
self._extend_port_dict_binding(context, port_data)
if validators.is_attr_set(port_data.get(mac_ext.MAC_LEARNING)):
if is_psec_on:
msg = _('Mac learning requires that port security be '
'disabled')
LOG.error(msg)
raise n_exc.InvalidInput(error_message=msg)
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)
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)
if not utils.is_nsx_version_1_1_0(self._nsx_version):
try:
self._update_lport_with_security_groups(
context, lport['id'], [], sgids or [])
except Exception as e:
with excutils.save_and_reraise_exception(reraise=False):
LOG.debug("Couldn't associate port %s with "
"one or more security-groups, reverting "
"logical-port creation (%s).",
port_data['id'], lport['id'])
self._cleanup_port(
context, neutron_db['id'], lport['id'])
# 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
try:
net_id = port_data[pbin.VIF_DETAILS]['nsx-logical-switch-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'])
self._apply_dict_extend_functions('ports', port_data, port_model)
# Add Mac/IP binding to native DHCP server and neutron DB.
if cfg.CONF.nsx_v3.native_dhcp_metadata:
self._add_dhcp_binding(context, port_data)
if not cfg.CONF.nsx_v3.native_dhcp_metadata:
nsx_rpc.handle_port_metadata_access(self, context, neutron_db)
return port_data
def _pre_delete_port_check(self, context, port_id, l2gw_port_check):
"""Perform checks prior to deleting a port."""
try:
kwargs = {
'context': context,
'port_check': l2gw_port_check,
'port_id': port_id,
}
# Send delete port notification to any interested service plugin
registry.notify(
resources.PORT, events.BEFORE_DELETE, self, **kwargs)
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):
# 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)
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._port_client.delete(nsx_port_id)
if not utils.is_nsx_version_1_1_0(self._nsx_version):
self._update_lport_with_security_groups(
context, nsx_port_id,
port.get(ext_sg.SECURITYGROUPS, []), [])
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_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 _update_port_preprocess_security(
self, context, port, id, updated_port, validate_port_sec=True):
delete_addr_pairs = self._check_update_deletes_allowed_address_pairs(
port)
has_addr_pairs = self._check_update_has_allowed_address_pairs(port)
has_security_groups = self._check_update_has_security_groups(port)
delete_security_groups = self._check_update_deletes_security_groups(
port)
# populate port_security setting
if psec.PORTSECURITY not in port['port']:
updated_port[psec.PORTSECURITY] = \
self._get_port_security_binding(context, id)
has_ip = self._ip_on_port(updated_port)
# validate port security and allowed address pairs
if not updated_port[psec.PORTSECURITY]:
# has address pairs in request
if has_addr_pairs:
raise addr_pair.AddressPairAndPortSecurityRequired()
elif not delete_addr_pairs:
# check if address pairs are in db
updated_port[addr_pair.ADDRESS_PAIRS] = (
self.get_allowed_address_pairs(context, id))
if updated_port[addr_pair.ADDRESS_PAIRS]:
raise addr_pair.AddressPairAndPortSecurityRequired()
if delete_addr_pairs or has_addr_pairs:
self._validate_address_pairs(
updated_port[addr_pair.ADDRESS_PAIRS])
# delete address pairs and read them in
self._delete_allowed_address_pairs(context, id)
self._process_create_allowed_address_pairs(
context, updated_port,
updated_port[addr_pair.ADDRESS_PAIRS])
# checks if security groups were updated adding/modifying
# security groups, port security is set and port has ip
if (validate_port_sec and
not (has_ip and updated_port[psec.PORTSECURITY])):
if has_security_groups:
raise psec.PortSecurityAndIPRequiredForSecurityGroups()
# Update did not have security groups passed in. Check
# that port does not have any security groups already on it.
filters = {'port_id': [id]}
security_groups = (
super(NsxV3Plugin, self)._get_port_security_group_bindings(
context, filters)
)
if security_groups and not delete_security_groups:
raise psec.PortSecurityPortHasSecurityGroup()
if delete_security_groups or has_security_groups:
# delete the port binding and read it with the new rules.
self._delete_port_security_group_bindings(context, id)
sgids = self._get_security_groups_on_port(context, port)
self._process_port_create_security_group(context, updated_port,
sgids)
if psec.PORTSECURITY in port['port']:
self._process_port_port_security_update(
context, port['port'], updated_port)
return updated_port
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):
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)
parent_vif_id, tag = self._get_data_from_binding_profile(
context, updated_port)
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._get_port_name(context, updated_port)
updated_ps = updated_port.get('port_security_enabled')
if not updated_ps:
tags_update.append({'scope': security.PORT_SG_SCOPE,
'tag': nsxlib_consts.EXCLUDE_PORT})
if utils.is_nsx_version_1_1_0(self._nsx_version):
tags_update += self.nsxlib.ns_group.get_lport_tags(
updated_port.get(ext_sg.SECURITYGROUPS, []) +
updated_port.get(provider_sg.PROVIDER_SECURITYGROUPS, []))
else:
self._update_lport_with_security_groups(
context, lport_id,
original_port.get(ext_sg.SECURITYGROUPS, []) +
original_port.get(provider_sg.PROVIDER_SECURITYGROUPS, []),
updated_port.get(ext_sg.SECURITYGROUPS, []) +
updated_port.get(provider_sg.PROVIDER_SECURITYGROUPS, []))
# Update the DHCP profile
if updated_device_owner == const.DEVICE_OWNER_DHCP:
switch_profile_ids.append(self._dhcp_profile)
# Update QoS switch profile
orig_compute = original_device_owner.startswith(
const.DEVICE_OWNER_COMPUTE_PREFIX)
updated_compute = updated_device_owner.startswith(
const.DEVICE_OWNER_COMPUTE_PREFIX)
is_new_compute = updated_compute and not orig_compute
qos_policy_id, qos_profile_id = self._get_port_qos_ids(context,
updated_port,
is_new_compute)
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_pair.ADDRESS_PAIRS)
mac_learning_profile_set = (
validators.is_attr_set(address_pairs) and address_pairs and
psec_is_on)
# Add mac_learning profile if it exists and is configured
if (self._mac_learning_profile and
(mac_learning_profile_set or
updated_port.get(mac_ext.MAC_LEARNING) is True)):
switch_profile_ids.append(self._mac_learning_profile)
try:
self._port_client.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,
parent_vif_id=parent_vif_id,
traffic_tag=tag)
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, updated_port, is_new_compute):
# when a port is updated, get the current QoS policy/profile ids
policy_id = None
profile_id = None
if (qos_consts.QOS_POLICY_ID in updated_port):
policy_id = updated_port[qos_consts.QOS_POLICY_ID]
else:
# Look for the previous QoS policy
policy_id = qos_com_utils.get_port_policy_id(
context, updated_port['id'])
# If the port is now a 'compute' port (attached to a vm) and
# Qos policy was not configured on the port directly,
# try to take it from the ports network
if policy_id is None and is_new_compute:
# check if the network of this port has a policy
policy_id = qos_com_utils.get_network_policy_id(
context, updated_port.get('network_id'))
if policy_id is not None:
profile_id = self._get_qos_profile_id(context, policy_id)
return policy_id, profile_id
def update_port(self, context, id, port):
switch_profile_ids = None
# Need to determine if we skip validations for port security.
# This is the edge case when the subnet is deleted.
validate_port_sec = True
fixed_ips = port['port'].get('fixed_ips', [])
for fixed_ip in fixed_ips:
if 'delete_subnet' in fixed_ip:
validate_port_sec = False
break
with db_api.context_manager.writer.using(context):
original_port = super(NsxV3Plugin, self).get_port(context, id)
nsx_lswitch_id, nsx_lport_id = nsx_db.get_nsx_switch_and_port_id(
context.session, id)
is_external_net = self._network_is_external(
context, original_port['network_id'])
if is_external_net:
self._assert_on_external_net_with_compute(port['port'])
self._assert_on_external_net_port_with_qos(port['port'])
dhcp_opts = port['port'].get(ext_edo.EXTRADHCPOPTS)
self._validate_extra_dhcp_options(dhcp_opts)
device_owner = (port['port']['device_owner']
if 'device_owner' in port['port']
else original_port.get('device_owner'))
self._assert_on_router_port_with_qos(
port['port'], device_owner)
updated_port = super(NsxV3Plugin, self).update_port(context,
id, port)
self._extension_manager.process_update_port(context, port['port'],
updated_port)
# copy values over - except fixed_ips as
# they've already been processed
port['port'].pop('fixed_ips', None)
updated_port.update(port['port'])
updated_port = self._update_port_preprocess_security(
context, port, id, updated_port, validate_port_sec)
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['port'], updated_port)
self._extend_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)
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]
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)
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_manager.writer.using(context):
super(NsxV3Plugin, self).update_port(
context, id, {'port': original_port})
# revert allowed address pairs
if port_security:
orig_pair = original_port.get(
addr_pair.ADDRESS_PAIRS)
updated_pair = updated_port.get(
addr_pair.ADDRESS_PAIRS)
if orig_pair != updated_pair:
self._delete_allowed_address_pairs(context, id)
if orig_pair:
self._process_create_allowed_address_pairs(
context, original_port, orig_pair)
if sec_grp_updated:
self.update_security_group_on_port(
context, id, {'port': original_port},
updated_port, original_port)
# 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_dhcp_binding(context, original_port, updated_port)
return updated_port
def _extend_get_port_dict_binding(self, context, port):
self._extend_port_dict_binding(context, port)
# add the qos policy id from the DB
if 'id' in port:
port[qos_consts.QOS_POLICY_ID] = qos_com_utils.get_port_policy_id(
context, port['id'])
def get_port(self, context, id, fields=None):
port = super(NsxV3Plugin, self).get_port(context, id, fields=None)
self._extend_get_port_dict_binding(context, 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 {}
with db_api.context_manager.reader.using(context):
ports = (
super(NsxV3Plugin, self).get_ports(
context, filters, fields, sorts,
limit, marker, page_reverse))
# Add port extensions
for port in ports:
self._extend_get_port_dict_binding(context, port)
return (ports if not fields else
[db_utils.resource_fields(port, fields) for port in ports])
def _extract_external_gw(self, context, router, is_extract=True):
r = router['router']
gw_info = const.ATTR_NOT_SPECIFIED
# First extract the gateway info in case of updating
# gateway before edge is deployed.
if 'external_gateway_info' in r:
gw_info = r.get('external_gateway_info', {})
if is_extract:
del r['external_gateway_info']
network_id = (gw_info.get('network_id') if gw_info
else None)
if network_id:
ext_net = self._get_network(context, network_id)
if not ext_net.external:
msg = (_("Network '%s' is not a valid external network") %
network_id)
raise n_exc.BadRequest(resource='router', msg=msg)
return gw_info
def _get_external_attachment_info(self, context, router):
gw_port = router.gw_port
ipaddress = None
netmask = None
nexthop = None
if gw_port:
# gw_port may have multiple IPs, only configure the first one
if gw_port.get('fixed_ips'):
ipaddress = gw_port['fixed_ips'][0]['ip_address']
network_id = gw_port.get('network_id')
if network_id:
ext_net = self._get_network(context, network_id)
if not ext_net.external:
msg = (_("Network '%s' is not a valid external "
"network") % network_id)
raise n_exc.BadRequest(resource='router', msg=msg)
if ext_net.subnets:
ext_subnet = ext_net.subnets[0]
netmask = str(netaddr.IPNetwork(ext_subnet.cidr).netmask)
nexthop = ext_subnet.gateway_ip
return (ipaddress, netmask, nexthop)
def _get_tier0_uuid_by_net(self, context, network_id):
if not network_id:
return
network = self.get_network(context, network_id)
if not network.get(pnet.PHYSICAL_NETWORK):
return self._default_tier0_router
else:
return network.get(pnet.PHYSICAL_NETWORK)
def _update_router_gw_info(self, context, router_id, info):
router = self._get_router(context, router_id)
org_ext_net_id = router.gw_port_id and router.gw_port.network_id
org_tier0_uuid = self._get_tier0_uuid_by_net(context, org_ext_net_id)
org_enable_snat = router.enable_snat
new_ext_net_id = info and info.get('network_id')
orgaddr, orgmask, _orgnexthop = (
self._get_external_attachment_info(
context, router))
# Ensure that a router cannot have SNAT disabled if there are
# floating IP's assigned
if (info and 'enable_snat' in info and
org_enable_snat != info.get('enable_snat') and
info.get('enable_snat') is False and
self.router_gw_port_has_floating_ips(context, router_id)):
msg = _("Unable to set SNAT disabled. Floating IPs assigned.")
raise n_exc.InvalidInput(error_message=msg)
# 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_ext_net_id = router.gw_port_id and router.gw_port.network_id
new_tier0_uuid = self._get_tier0_uuid_by_net(context, new_ext_net_id)
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)
# Remove router link port between tier1 and tier0 if tier0 router link
# is removed or changed
remove_router_link_port = (org_tier0_uuid and
(not new_tier0_uuid or
org_tier0_uuid != new_tier0_uuid))
# Remove SNAT rules for gw ip if gw ip is deleted/changed or
# enable_snat is updated from True to False
remove_snat_rules = (org_enable_snat and orgaddr and
(newaddr != orgaddr or
not new_enable_snat))
# Revocate bgp announce for nonat subnets if tier0 router link is
# changed or enable_snat is updated from False to True
revocate_bgp_announce = (not org_enable_snat and org_tier0_uuid and
(new_tier0_uuid != org_tier0_uuid or
new_enable_snat))
# Add router link port between tier1 and tier0 if tier0 router link is
# added or changed to a new one
add_router_link_port = (new_tier0_uuid and
(not org_tier0_uuid or
org_tier0_uuid != new_tier0_uuid))
# Add SNAT rules for gw ip if gw ip is add/changed or
# enable_snat is updated from False to True
add_snat_rules = (new_enable_snat and newaddr and
(newaddr != orgaddr or
not org_enable_snat))
# Bgp announce for nonat subnets if tier0 router link is changed or
# enable_snat is updated from True to False
bgp_announce = (not new_enable_snat and new_tier0_uuid and
(new_tier0_uuid != org_tier0_uuid or
not org_enable_snat))
# Advertise NAT routes if enable SNAT to support FIP. In the NoNAT
# use case, only NSX connected routes need to be advertised.
advertise_route_nat_flag = True if new_enable_snat else False
advertise_route_connected_flag = True if not new_enable_snat else False
if revocate_bgp_announce:
# TODO(berlin): revocate bgp announce on org tier0 router
pass
if remove_snat_rules:
self._routerlib.delete_gw_snat_rule(nsx_router_id, orgaddr)
if remove_router_link_port:
self._routerlib.remove_router_link_port(
nsx_router_id, org_tier0_uuid)
if add_router_link_port:
# First update edge cluster info for router
edge_cluster_uuid = self._get_edge_cluster(new_tier0_uuid)
self._routerlib.update_router_edge_cluster(
nsx_router_id, edge_cluster_uuid)
tags = self.nsxlib.build_v3_tags_payload(
router, resource_type='os-neutron-rport',
project_name=context.tenant_name)
self._routerlib.add_router_link_port(nsx_router_id, new_tier0_uuid,
tags=tags)
if add_snat_rules:
self._routerlib.add_gw_snat_rule(nsx_router_id, newaddr)
if bgp_announce:
# TODO(berlin): bgp announce on new tier0 router
pass
self._routerlib.update_advertisement(nsx_router_id,
advertise_route_nat_flag,
advertise_route_connected_flag)
def _process_extra_attr_router_create(self, context, router_db, r):
for extra_attr in l3_attrs_db.get_attr_info().keys():
if extra_attr in r:
self.set_extra_attr_value(context, router_db,
extra_attr, r[extra_attr])
def create_router(self, context, router):
# TODO(berlin): admin_state_up support
r = router['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)
with db_api.context_manager.writer.using(context):
router_db = self._get_router(context, r['id'])
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._router_client.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)
router = self.get_router(context, router_id)
if router.get(l3.EXTERNAL_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)
# 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._router_client.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
def _validate_ext_routes(self, context, router_id, gw_info, new_routes):
ext_net_id = (gw_info['network_id']
if validators.is_attr_set(gw_info) and gw_info else None)
if not ext_net_id:
port_filters = {'device_id': [router_id],
'device_owner': [l3_db.DEVICE_OWNER_ROUTER_GW]}
gw_ports = self.get_ports(context, filters=port_filters)
if gw_ports:
ext_net_id = gw_ports[0]['network_id']
if ext_net_id:
subnets = self._get_subnets_by_network(context, ext_net_id)
ext_cidrs = [subnet['cidr'] for subnet in subnets]
for route in new_routes:
if netaddr.all_matching_cidrs(
route['nexthop'], ext_cidrs):
error_message = (_("route with destination %(dest)s have "
"an external nexthop %(nexthop)s which "
"can't be supported") %
{'dest': route['destination'],
'nexthop': route['nexthop']})
LOG.error(error_message)
raise n_exc.InvalidInput(error_message=error_message)
def _update_router_wrapper(self, context, router_id, router):
if cfg.CONF.api_replay_mode:
# Only import mock if the reply mode is used
import mock
# NOTE(arosen): the mock.patch here is needed for api_replay_mode
with mock.patch("neutron.plugins.common.utils._fixup_res_dict",
side_effect=api_replay_utils._fixup_res_dict):
return super(NsxV3Plugin, self).update_router(
context, router_id, router)
else:
return super(NsxV3Plugin, self).update_router(
context, router_id, router)
def update_router(self, context, router_id, router):
# TODO(berlin): admin_state_up support
gw_info = self._extract_external_gw(context, router, is_extract=False)
router_data = router['router']
nsx_router_id = None
routes_added = []
routes_removed = []
try:
if 'routes' in router_data:
new_routes = router_data['routes']
self._validate_ext_routes(context, router_id, gw_info,
new_routes)
self._validate_routes(context, router_id, new_routes)
old_routes = self._get_extra_routes_by_router_id(
context, router_id)
routes_added, routes_removed = helpers.diff_list_of_dict(
old_routes, new_routes)
nsx_router_id = nsx_db.get_nsx_router_id(context.session,
router_id)
for route in routes_removed:
self._routerlib.delete_static_routes(nsx_router_id, route)
for route in routes_added:
self._routerlib.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._router_client.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._port_client.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._router_client.update(
nsx_router_id,
description=router_data['description'])
return self._update_router_wrapper(context, router_id, router)
except nsx_lib_exc.ResourceNotFound:
with db_api.context_manager.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._routerlib.delete_static_routes(
nsx_router_id, route)
for route in routes_removed:
self._routerlib.add_static_routes(nsx_router_id, route)
router_db['status'] = curr_status
def _get_router_interface_ports_by_network(
self, context, router_id, network_id):
port_filters = {'device_id': [router_id],
'device_owner': [l3_db.DEVICE_OWNER_ROUTER_INTF],
'network_id': [network_id]}
return self.get_ports(context, filters=port_filters)
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 = []
ports = self._get_router_interface_ports_by_network(
context, router_id, network_id)
ports = [port for port in ports
if port['fixed_ips'] and
port['fixed_ips'][0]['subnet_id'] not in exclude_sub_ids]
for port in ports:
address_group = {}
gateway_ip = port['fixed_ips'][0]['ip_address']
subnet = self.get_subnet(context,
port['fixed_ips'][0]['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)
def _get_interface_network(self, context, interface_info):
is_port, is_sub = self._validate_interface_info(interface_info)
if is_port:
net_id = self.get_port(context,
interface_info['port_id'])['network_id']
elif is_sub:
net_id = self.get_subnet(context,
interface_info['subnet_id'])['network_id']
return net_id
def _validate_multiple_subnets_routers(self, context, router_id, net_id):
network = self.get_network(context, net_id)
net_type = network.get(pnet.NETWORK_TYPE)
if (net_type and net_type != utils.NsxV3NetworkTypes.VXLAN):
err_msg = (_("Only overlay networks can be attached to a logical "
"router. Network %(net_id)s is a %(net_type)s based "
"network") % {'net_id': net_id, 'net_type': net_type})
LOG.error(err_msg)
raise n_exc.InvalidInput(error_message=err_msg)
port_filters = {'device_owner': [l3_db.DEVICE_OWNER_ROUTER_INTF],
'network_id': [net_id]}
intf_ports = self.get_ports(context.elevated(), filters=port_filters)
router_ids = [port['device_id']
for port in intf_ports if port['device_id']]
if len(router_ids) > 0:
err_msg = _("Only one subnet of network %(net_id)s can be "
"attached to router, one subnet is already attached "
"to router %(router_id)s") % {
'net_id': net_id,
'router_id': router_ids[0]}
LOG.error(err_msg)
if router_id in router_ids:
# attach to the same router again
raise n_exc.InvalidInput(error_message=err_msg)
else:
# attach to multiple routers
raise l3.RouterInterfaceAttachmentConflict(reason=err_msg)
def _add_router_interface_wrapper(self, context, router_id,
interface_info):
if cfg.CONF.api_replay_mode:
# Only import mock if the reply mode is used
import mock
# NOTE(arosen): the mock.patch here is needed for api_replay_mode
with mock.patch("neutron.plugins.common.utils._fixup_res_dict",
side_effect=api_replay_utils._fixup_res_dict):
return super(NsxV3Plugin, self).add_router_interface(
context, router_id, interface_info)
else:
return super(NsxV3Plugin, self).add_router_interface(
context, router_id, interface_info)
def add_router_interface(self, context, router_id, interface_info):
net_id = self._get_interface_network(context, interface_info)
with locking.LockManager.get_lock(str(net_id)):
# disallow more than one subnets belong to same network being
# attached to routers
self._validate_multiple_subnets_routers(context, router_id, net_id)
info = self._add_router_interface_wrapper(context, router_id,
interface_info)
try:
subnet = self.get_subnet(context, info['subnet_ids'][0])
port = self.get_port(context, info['port_id'])
network_id = subnet['network_id']
nsx_net_id, nsx_port_id = nsx_db.get_nsx_switch_and_port_id(
context.session, port['id'])
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(
port, resource_type='os-neutron-rport-id',
project_name=context.tenant_name)
tags.append({'scope': 'os-subnet-id', 'tag': subnet['id']})
self._routerlib.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)
router_db = self._get_router(context, router_id)
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)
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)
self.remove_router_interface(
context, router_id, interface_info)
return info
def remove_router_interface(self, context, router_id, interface_info):
subnet = None
subnet_id = None
port_id = None
self._validate_interface_info(interface_info, for_removal=True)
if 'port_id' in interface_info:
port_id = interface_info['port_id']
# find subnet_id - it is need for removing the SNAT rule
port = self._get_port(context, port_id)
if port.get('fixed_ips'):
subnet_id = port['fixed_ips'][0]['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.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)
rport_qry = context.session.query(models_v2.Port)
ports = rport_qry.filter_by(
device_id=router_id,
device_owner=l3_db.DEVICE_OWNER_ROUTER_INTF,
network_id=subnet['network_id'])
for p in ports:
if p['fixed_ips'][0]['subnet_id'] == subnet_id:
port_id = p['id']
break
else:
raise l3.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)
subnet = self.get_subnet(context, subnet_id)
ports, address_groups = self._get_ports_and_address_groups(
context, router_id, subnet['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._router_port_client.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._router_port_client.delete_by_lswitch_id(nsx_net_id)
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': subnet['network_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)
return info
def _create_floating_ip_wrapper(self, context, floatingip):
if cfg.CONF.api_replay_mode:
# Only import mock if the reply mode is used
import mock
# NOTE(arosen): the mock.patch here is needed for api_replay_mode
with mock.patch("neutron.plugins.common.utils._fixup_res_dict",
side_effect=api_replay_utils._fixup_res_dict):
return super(NsxV3Plugin, self).create_floatingip(
context, floatingip, initial_status=(
const.FLOATINGIP_STATUS_ACTIVE
if floatingip['floatingip']['port_id']
else const.FLOATINGIP_STATUS_DOWN))
else:
return super(NsxV3Plugin, self).create_floatingip(
context, floatingip, initial_status=(
const.FLOATINGIP_STATUS_ACTIVE
if floatingip['floatingip']['port_id']
else const.FLOATINGIP_STATUS_DOWN))
def create_floatingip(self, context, floatingip):
new_fip = self._create_floating_ip_wrapper(context, floatingip)
router_id = new_fip['router_id']
if not router_id:
return new_fip
try:
nsx_router_id = nsx_db.get_nsx_router_id(context.session,
router_id)
self._routerlib.add_fip_nat_rules(
nsx_router_id, new_fip['floating_ip_address'],
new_fip['fixed_ip_address'])
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']
if router_id:
try:
nsx_router_id = nsx_db.get_nsx_router_id(context.session,
router_id)
self._routerlib.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 get_router_for_floatingip(self, context, internal_port,
internal_subnet, external_network_id):
router_id = super(NsxV3Plugin, self).get_router_for_floatingip(
context, internal_port, internal_subnet, external_network_id)
if router_id:
router = self._get_router(context.elevated(), router_id)
if not router.enable_snat:
msg = _("Unable to assign a floating IP to a router that "
"has SNAT disabled")
raise n_exc.InvalidInput(error_message=msg)
return router_id
def update_floatingip(self, context, fip_id, floatingip):
old_fip = self.get_floatingip(context, fip_id)
old_port_id = old_fip['port_id']
new_status = (const.FLOATINGIP_STATUS_ACTIVE
if floatingip['floatingip']['port_id']
else const.FLOATINGIP_STATUS_DOWN)
new_fip = super(NsxV3Plugin, self).update_floatingip(
context, fip_id, floatingip)
router_id = new_fip['router_id']
try:
# Delete old router's fip rules if old_router_id is not None.
if old_fip['router_id']:
try:
old_nsx_router_id = nsx_db.get_nsx_router_id(
context.session, old_fip['router_id'])
self._routerlib.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']})
# 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:
nsx_router_id = nsx_db.get_nsx_router_id(context.session,
router_id)
self._routerlib.add_fip_nat_rules(
nsx_router_id, new_fip['floating_ip_address'],
new_fip['fixed_ip_address'])
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._routerlib.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 _ensure_default_security_group(self, context, tenant_id):
# NOTE(arosen): if in replay mode we'll create all the default
# security groups for the user with their data so we don't
# want this to be called.
if (cfg.CONF.api_replay_mode is False):
return super(NsxV3Plugin, self)._ensure_default_security_group(
context, tenant_id)
def get_security_groups(self, context, filters=None, fields=None,
sorts=None, limit=None,
marker=None, page_reverse=False, default_sg=False):
return super(NsxV3Plugin, self).get_security_groups(
context, filters=filters, fields=fields,
sorts=sorts, limit=limit,
marker=marker, page_reverse=page_reverse,
default_sg=default_sg)
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.nsxlib.ns_group.get_name(secgroup)
if utils.is_nsx_version_1_1_0(self._nsx_version):
tag_expression = (
self.nsxlib.ns_group.get_port_tag_expression(
security.PORT_SG_SCOPE, secgroup['id']))
else:
tag_expression = None
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 = {}
for sg_rule in sg_rules:
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_rules(
context, 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_manager.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)
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:
with excutils.save_and_reraise_exception():
LOG.exception("Failed to create backend firewall rules "
"for security-group %(name)s (%(id)s), "
"rolling back changes.", secgroup_db)
# default security group deletion requires admin context
if default_sg:
context = context.elevated()
super(NsxV3Plugin, self).delete_security_group(
context, secgroup_db['id'])
self.nsxlib.ns_group.delete(ns_group['id'])
self.nsxlib.firewall_section.delete(firewall_section['id'])
return secgroup_db
def update_security_group(self, context, id, security_group):
orig_secgroup = self.get_security_group(
context, id, fields=['id', 'name', 'description'])
with db_api.context_manager.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)
self.nsxlib.ns_group.update_on_backend(
context, secgroup_res, 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_delete_provider_sg(context, 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)
self.nsxlib.ns_group.delete(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 sepecified,
# 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_manager.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_delete_provider_sg(context, 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_delete_provider_sg(context, 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 _list_availability_zones(self, context, filters=None):
# If no native_dhcp_metadata - use neutron AZs
if not cfg.CONF.nsx_v3.native_dhcp_metadata:
return super(NsxV3Plugin, self)._list_availability_zones(
context, filters=filters)
#TODO(asarfaty): We may need to use the filters arg, but now it
# is here only for overriding the original api
result = {}
for az in self._availability_zones_data.list_availability_zones():
# Add this availability zone as a network resource
result[(az, 'network')] = True
return result
def validate_availability_zones(self, context, resource_type,
availability_zones):
# If no native_dhcp_metadata - use neutron AZs
if not cfg.CONF.nsx_v3.native_dhcp_metadata:
return super(NsxV3Plugin, self).validate_availability_zones(
context, resource_type, availability_zones)
# Validate against the configured AZs
return self.validate_obj_azs(availability_zones)
def _extend_availability_zone_hints(self, net_res, net_db):
net_res[az_ext.AZ_HINTS] = az_ext.convert_az_string_to_list(
net_db[az_ext.AZ_HINTS])
if cfg.CONF.nsx_v3.native_dhcp_metadata:
# When using the configured AZs, the az will always be the same
# as the hint (or default if none)
if net_res[az_ext.AZ_HINTS]:
az_name = net_res[az_ext.AZ_HINTS][0]
else:
az_name = nsx_az.DEFAULT_NAME
net_res[az_ext.AVAILABILITY_ZONES] = [az_name]
def get_network_az_by_net_id(self, context, network_id):
try:
network = self.get_network(context, network_id)
except Exception:
return self.get_default_az()
return self.get_network_az(network)
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