380 lines
17 KiB
Python
380 lines
17 KiB
Python
# Copyright 2012 VMware, Inc.
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# All Rights Reserved
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import uuid
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from oslo_log import log as logging
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from oslo_utils import excutils
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from neutron.api import extensions as neutron_extensions
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from neutron.api.v2 import attributes as attr
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from neutron.common import exceptions as n_exc
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from neutron.db import agentschedulers_db
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from neutron.db import allowedaddresspairs_db as addr_pair_db
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from neutron.db import db_base_plugin_v2
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from neutron.db import external_net_db
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from neutron.db import l3_db
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from neutron.db import portbindings_db
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from neutron.db import portsecurity_db
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from neutron.db import securitygroups_db
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from neutron.extensions import allowedaddresspairs as addr_pair
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from neutron.extensions import multiprovidernet as mpnet
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from neutron.extensions import portbindings as pbin
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from neutron.extensions import portsecurity as psec
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from neutron.extensions import providernet as pnet
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from neutron.extensions import securitygroup as ext_sg
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from neutron.plugins.common import constants
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from neutron.plugins.common import utils
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import vmware_nsx
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from vmware_nsx._i18n import _, _LE, _LW
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from vmware_nsx.common import config # noqa
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from vmware_nsx.common import exceptions as nsx_exc
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from vmware_nsx.common import nsx_constants
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from vmware_nsx.common import utils as c_utils
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from vmware_nsx.db import db as nsx_db
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from vmware_nsx import dhcpmeta_modes
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from vmware_nsx.dvs import dvs
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from vmware_nsx.dvs import dvs_utils
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LOG = logging.getLogger(__name__)
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class NsxDvsV2(addr_pair_db.AllowedAddressPairsMixin,
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agentschedulers_db.DhcpAgentSchedulerDbMixin,
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db_base_plugin_v2.NeutronDbPluginV2,
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dhcpmeta_modes.DhcpMetadataAccess,
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external_net_db.External_net_db_mixin,
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l3_db.L3_NAT_dbonly_mixin,
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portbindings_db.PortBindingMixin,
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portsecurity_db.PortSecurityDbMixin,
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securitygroups_db.SecurityGroupDbMixin):
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supported_extension_aliases = ["allowed-address-pairs",
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"binding",
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"external-net",
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"multi-provider",
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"port-security",
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"provider",
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"quotas",
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"router",
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"security-group"]
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__native_bulk_support = True
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__native_pagination_support = True
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__native_sorting_support = True
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def __init__(self):
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super(NsxDvsV2, self).__init__()
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LOG.debug('Driver support: DVS: %s' % dvs_utils.dvs_is_enabled())
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neutron_extensions.append_api_extensions_path(
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[vmware_nsx.NSX_EXT_PATH])
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self._dvs = dvs.DvsManager()
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# Common driver code
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self.base_binding_dict = {
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pbin.VIF_TYPE: nsx_constants.VIF_TYPE_DVS,
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pbin.VIF_DETAILS: {
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# TODO(rkukura): Replace with new VIF security details
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pbin.CAP_PORT_FILTER:
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'security-group' in self.supported_extension_aliases}}
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self.setup_dhcpmeta_access()
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def _extend_network_dict_provider(self, context, network,
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multiprovider=None, bindings=None):
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if not bindings:
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bindings = nsx_db.get_network_bindings(context.session,
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network['id'])
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if not multiprovider:
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multiprovider = nsx_db.is_multiprovider_network(context.session,
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network['id'])
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# With NSX plugin 'normal' overlay networks will have no binding
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# TODO(salvatore-orlando) make sure users can specify a distinct
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# phy_uuid as 'provider network' for STT net type
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if bindings:
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if not multiprovider:
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# network came in through provider networks api
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network[pnet.NETWORK_TYPE] = bindings[0].binding_type
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network[pnet.PHYSICAL_NETWORK] = bindings[0].phy_uuid
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network[pnet.SEGMENTATION_ID] = bindings[0].vlan_id
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else:
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# network come in though multiprovider networks api
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network[mpnet.SEGMENTS] = [
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{pnet.NETWORK_TYPE: binding.binding_type,
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pnet.PHYSICAL_NETWORK: binding.phy_uuid,
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pnet.SEGMENTATION_ID: binding.vlan_id}
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for binding in bindings]
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def _dvs_get_id(self, net_data):
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if net_data['name'] == '':
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return net_data['id']
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else:
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# Maximum name length is 80 characters. 'id' length is 36
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# maximum prefix for name is 43
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return '%s-%s' % (net_data['name'][:43], net_data['id'])
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def _dvs_create_network(self, context, network):
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net_data = network['network']
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if net_data['admin_state_up'] is False:
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LOG.warning(_LW("Network with admin_state_up=False are not yet "
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"supported by this plugin. Ignoring setting for "
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"network %s"), net_data.get('name', '<unknown>'))
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net_data['id'] = str(uuid.uuid4())
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vlan_tag = 0
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if net_data.get(pnet.NETWORK_TYPE) == c_utils.NetworkTypes.VLAN:
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vlan_tag = net_data.get(pnet.SEGMENTATION_ID, 0)
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dvs_id = self._dvs_get_id(net_data)
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self._dvs.add_port_group(dvs_id, vlan_tag)
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try:
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with context.session.begin(subtransactions=True):
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new_net = super(NsxDvsV2, self).create_network(context,
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network)
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# Process port security extension
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self._process_network_port_security_create(
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context, net_data, new_net)
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nsx_db.add_network_binding(
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context.session, new_net['id'],
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net_data.get(pnet.NETWORK_TYPE),
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'dvs',
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vlan_tag)
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except Exception:
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with excutils.save_and_reraise_exception():
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LOG.exception(_LE('Failed to create network'))
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self._dvs.delete_port_group(dvs_id)
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new_net[pnet.NETWORK_TYPE] = net_data.get(pnet.NETWORK_TYPE)
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new_net[pnet.PHYSICAL_NETWORK] = 'dvs'
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new_net[pnet.SEGMENTATION_ID] = vlan_tag
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self.handle_network_dhcp_access(context, new_net,
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action='create_network')
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return new_net
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def _validate_network(self, context, net_data):
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network_type = net_data.get(pnet.NETWORK_TYPE)
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segmentation_id = net_data.get(pnet.SEGMENTATION_ID)
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segmentation_id_set = attr.is_attr_set(segmentation_id)
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if not context.is_admin:
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err_msg = _("Only and admin can create a DVS provider "
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"network")
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raise n_exc.InvalidInput(error_message=err_msg)
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err_msg = None
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if network_type == c_utils.NetworkTypes.FLAT:
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if segmentation_id_set:
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err_msg = _("Segmentation ID cannot be specified with "
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"flat network type")
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elif network_type == c_utils.NetworkTypes.VLAN:
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if not segmentation_id_set:
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err_msg = _("Segmentation ID must be specified with "
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"vlan network type")
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elif (segmentation_id_set and
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not utils.is_valid_vlan_tag(segmentation_id)):
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err_msg = (_("%(segmentation_id)s out of range "
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"(%(min_id)s through %(max_id)s)") %
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{'segmentation_id': segmentation_id,
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'min_id': constants.MIN_VLAN_TAG,
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'max_id': constants.MAX_VLAN_TAG})
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else:
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err_msg = (_("%(net_type_param)s %(net_type_value)s not "
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"supported") %
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{'net_type_param': pnet.NETWORK_TYPE,
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'net_type_value': network_type})
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if err_msg:
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raise n_exc.InvalidInput(error_message=err_msg)
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def create_network(self, context, network):
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self._validate_network(context, network['network'])
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return self._dvs_create_network(context, network)
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def _dvs_delete_network(self, context, id):
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network = self._get_network(context, id)
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dvs_id = self._dvs_get_id(network)
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with context.session.begin(subtransactions=True):
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nsx_db.delete_network_bindings(context.session, id)
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super(NsxDvsV2, self).delete_network(context, id)
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try:
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self._dvs.delete_port_group(dvs_id)
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except Exception:
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LOG.exception(_LE('Unable to delete DVS port group %s'), id)
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self.handle_network_dhcp_access(context, id, action='delete_network')
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def delete_network(self, context, id):
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self._dvs_delete_network(context, id)
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def _dvs_get_network(self, context, id, fields=None):
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with context.session.begin(subtransactions=True):
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# goto to the plugin DB and fetch the network
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network = self._get_network(context, id)
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# Don't do field selection here otherwise we won't be able
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# to add provider networks fields
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net_result = self._make_network_dict(network,
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context=context)
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self._extend_network_dict_provider(context, net_result)
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return self._fields(net_result, fields)
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def get_network(self, context, id, fields=None):
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return self._dvs_get_network(context, id, fields=None)
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def get_networks(self, context, filters=None, fields=None,
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sorts=None, limit=None, marker=None,
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page_reverse=False):
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filters = filters or {}
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with context.session.begin(subtransactions=True):
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networks = (
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super(NsxDvsV2, self).get_networks(
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context, filters, fields, sorts,
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limit, marker, page_reverse))
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for net in networks:
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self._extend_network_dict_provider(context, net)
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return [self._fields(network, fields) for network in networks]
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def update_network(self, context, id, network):
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raise nsx_exc.NsxPluginException(
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err_msg=_("Unable to update DVS network"))
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def create_port(self, context, port):
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# If PORTSECURITY is not the default value ATTR_NOT_SPECIFIED
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# then we pass the port to the policy engine. The reason why we don't
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# pass the value to the policy engine when the port is
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# ATTR_NOT_SPECIFIED is for the case where a port is created on a
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# shared network that is not owned by the tenant.
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port_data = port['port']
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with context.session.begin(subtransactions=True):
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# First we allocate port in neutron database
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neutron_db = super(NsxDvsV2, self).create_port(context, port)
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port_security = self._get_network_security_binding(
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context, neutron_db['network_id'])
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port_data[psec.PORTSECURITY] = port_security
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self._process_port_port_security_create(
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context, port_data, neutron_db)
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# Update fields obtained from neutron db (eg: MAC address)
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port["port"].update(neutron_db)
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has_ip = self._ip_on_port(neutron_db)
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# security group extension checks
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if has_ip:
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self._ensure_default_security_group_on_port(context, port)
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elif attr.is_attr_set(port_data.get(ext_sg.SECURITYGROUPS)):
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raise psec.PortSecurityAndIPRequiredForSecurityGroups()
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port_data[ext_sg.SECURITYGROUPS] = (
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self._get_security_groups_on_port(context, port))
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self._process_port_create_security_group(
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context, port_data, port_data[ext_sg.SECURITYGROUPS])
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self._process_portbindings_create_and_update(context,
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port['port'],
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port_data)
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# allowed address pair checks
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if attr.is_attr_set(port_data.get(addr_pair.ADDRESS_PAIRS)):
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if not port_security:
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raise addr_pair.AddressPairAndPortSecurityRequired()
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else:
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self._process_create_allowed_address_pairs(
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context, neutron_db,
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port_data[addr_pair.ADDRESS_PAIRS])
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else:
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# remove ATTR_NOT_SPECIFIED
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port_data[addr_pair.ADDRESS_PAIRS] = []
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LOG.debug("create_port completed on NSX for tenant "
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"%(tenant_id)s: (%(id)s)", port_data)
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self._process_portbindings_create_and_update(context,
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port['port'],
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port_data)
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# DB Operation is complete, perform DVS operation
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port_data = port['port']
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self.handle_port_dhcp_access(context, port_data, action='create_port')
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return port_data
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def update_port(self, context, id, port):
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delete_addr_pairs = self._check_update_deletes_allowed_address_pairs(
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port)
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has_addr_pairs = self._check_update_has_allowed_address_pairs(port)
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with context.session.begin(subtransactions=True):
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ret_port = super(NsxDvsV2, self).update_port(
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context, id, port)
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# Save current mac learning state to check whether it's
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# being updated or not
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# copy values over - except fixed_ips as
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# they've already been processed
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port['port'].pop('fixed_ips', None)
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ret_port.update(port['port'])
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# populate port_security setting
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if psec.PORTSECURITY not in port['port']:
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ret_port[psec.PORTSECURITY] = self._get_port_security_binding(
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context, id)
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# validate port security and allowed address pairs
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if not ret_port[psec.PORTSECURITY]:
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# has address pairs in request
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if has_addr_pairs:
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raise addr_pair.AddressPairAndPortSecurityRequired()
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elif not delete_addr_pairs:
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# check if address pairs are in db
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ret_port[addr_pair.ADDRESS_PAIRS] = (
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self.get_allowed_address_pairs(context, id))
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if ret_port[addr_pair.ADDRESS_PAIRS]:
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raise addr_pair.AddressPairAndPortSecurityRequired()
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if delete_addr_pairs or has_addr_pairs:
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# delete address pairs and read them in
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self._delete_allowed_address_pairs(context, id)
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self._process_create_allowed_address_pairs(
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context, ret_port, ret_port[addr_pair.ADDRESS_PAIRS])
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if psec.PORTSECURITY in port['port']:
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self._process_port_port_security_update(
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context, port['port'], ret_port)
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LOG.debug("Updating port: %s", port)
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self._process_portbindings_create_and_update(context,
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port['port'],
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ret_port)
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return ret_port
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def delete_port(self, context, id, l3_port_check=True,
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nw_gw_port_check=True):
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"""Deletes a port on a specified Virtual Network.
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If the port contains a remote interface attachment, the remote
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interface is first un-plugged and then the port is deleted.
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:returns: None
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:raises: exception.PortInUse
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:raises: exception.PortNotFound
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:raises: exception.NetworkNotFound
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"""
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neutron_db_port = self.get_port(context, id)
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with context.session.begin(subtransactions=True):
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# metadata_dhcp_host_route
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self.handle_port_metadata_access(
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context, neutron_db_port, is_delete=True)
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super(NsxDvsV2, self).delete_port(context, id)
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self.handle_port_dhcp_access(
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context, neutron_db_port, action='delete_port')
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def create_router(self, context, router):
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# DVS backend cannot support logical router
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msg = (_("Unable to create router %s with DVS") %
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router['router']['name'])
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raise n_exc.BadRequest(resource="router", msg=msg)
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