c1b1af72e9
there was a copy/paste error in GRE/VXlan type drivers implementation. the segment wasn't returned while validating the provider network. Change-Id: I7df6d2e714d09618644f935a9ed41354b62de9d0 Fixes: bug #1202244
417 lines
19 KiB
Python
417 lines
19 KiB
Python
# Copyright (c) 2013 OpenStack Foundation
|
|
# 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.
|
|
|
|
from oslo.config import cfg
|
|
|
|
from neutron.agent import securitygroups_rpc as sg_rpc
|
|
from neutron.api.rpc.agentnotifiers import dhcp_rpc_agent_api
|
|
from neutron.api.rpc.agentnotifiers import l3_rpc_agent_api
|
|
from neutron.api.v2 import attributes
|
|
from neutron.common import constants as const
|
|
from neutron.common import exceptions as exc
|
|
from neutron.common import topics
|
|
from neutron.db import agentschedulers_db
|
|
from neutron.db import db_base_plugin_v2
|
|
from neutron.db import extraroute_db
|
|
from neutron.db import portbindings_db
|
|
from neutron.db import quota_db # noqa
|
|
from neutron.db import securitygroups_rpc_base as sg_db_rpc
|
|
from neutron.extensions import portbindings
|
|
from neutron.extensions import providernet as provider
|
|
from neutron.openstack.common import excutils
|
|
from neutron.openstack.common import importutils
|
|
from neutron.openstack.common import log
|
|
from neutron.openstack.common import rpc as c_rpc
|
|
from neutron.plugins.ml2.common import exceptions as ml2_exc
|
|
from neutron.plugins.ml2 import config # noqa
|
|
from neutron.plugins.ml2 import db
|
|
from neutron.plugins.ml2 import driver_api as api
|
|
from neutron.plugins.ml2 import driver_context
|
|
from neutron.plugins.ml2 import managers
|
|
from neutron.plugins.ml2 import rpc
|
|
|
|
LOG = log.getLogger(__name__)
|
|
|
|
# REVISIT(rkukura): Move this and other network_type constants to
|
|
# providernet.py?
|
|
TYPE_MULTI_SEGMENT = 'multi-segment'
|
|
|
|
|
|
class Ml2Plugin(db_base_plugin_v2.NeutronDbPluginV2,
|
|
extraroute_db.ExtraRoute_db_mixin,
|
|
sg_db_rpc.SecurityGroupServerRpcMixin,
|
|
agentschedulers_db.L3AgentSchedulerDbMixin,
|
|
agentschedulers_db.DhcpAgentSchedulerDbMixin,
|
|
portbindings_db.PortBindingMixin):
|
|
"""Implement the Neutron L2 abstractions using modules.
|
|
|
|
Ml2Plugin is a Neutron plugin based on separately extensible sets
|
|
of network types and mechanisms for connecting to networks of
|
|
those types. The network types and mechanisms are implemented as
|
|
drivers loaded via Python entry points. Networks can be made up of
|
|
multiple segments (not yet fully implemented).
|
|
"""
|
|
|
|
# This attribute specifies whether the plugin supports or not
|
|
# bulk/pagination/sorting operations. Name mangling is used in
|
|
# order to ensure it is qualified by class
|
|
__native_bulk_support = True
|
|
__native_pagination_support = True
|
|
__native_sorting_support = True
|
|
|
|
# List of supported extensions
|
|
_supported_extension_aliases = ["provider", "router", "extraroute",
|
|
"binding", "quotas", "security-group",
|
|
"agent", "l3_agent_scheduler",
|
|
"dhcp_agent_scheduler"]
|
|
|
|
@property
|
|
def supported_extension_aliases(self):
|
|
if not hasattr(self, '_aliases'):
|
|
aliases = self._supported_extension_aliases[:]
|
|
sg_rpc.disable_security_group_extension_if_noop_driver(aliases)
|
|
self._aliases = aliases
|
|
return self._aliases
|
|
|
|
def __init__(self):
|
|
# First load drivers, then initialize DB, then initialize drivers
|
|
self.type_manager = managers.TypeManager()
|
|
self.mechanism_manager = managers.MechanismManager()
|
|
db.initialize()
|
|
self.type_manager.initialize()
|
|
self.mechanism_manager.initialize()
|
|
|
|
self._setup_rpc()
|
|
|
|
# REVISIT(rkukura): Use stevedore for these?
|
|
self.network_scheduler = importutils.import_object(
|
|
cfg.CONF.network_scheduler_driver
|
|
)
|
|
self.router_scheduler = importutils.import_object(
|
|
cfg.CONF.router_scheduler_driver
|
|
)
|
|
|
|
LOG.info(_("Modular L2 Plugin initialization complete"))
|
|
|
|
def _setup_rpc(self):
|
|
self.notifier = rpc.AgentNotifierApi(topics.AGENT)
|
|
self.agent_notifiers[const.AGENT_TYPE_DHCP] = (
|
|
dhcp_rpc_agent_api.DhcpAgentNotifyAPI()
|
|
)
|
|
self.agent_notifiers[const.AGENT_TYPE_L3] = (
|
|
l3_rpc_agent_api.L3AgentNotify
|
|
)
|
|
self.callbacks = rpc.RpcCallbacks(self.notifier, self.type_manager)
|
|
self.topic = topics.PLUGIN
|
|
self.conn = c_rpc.create_connection(new=True)
|
|
self.dispatcher = self.callbacks.create_rpc_dispatcher()
|
|
self.conn.create_consumer(self.topic, self.dispatcher,
|
|
fanout=False)
|
|
self.conn.consume_in_thread()
|
|
|
|
def _process_provider_create(self, context, attrs):
|
|
network_type = self._get_attribute(attrs, provider.NETWORK_TYPE)
|
|
physical_network = self._get_attribute(attrs,
|
|
provider.PHYSICAL_NETWORK)
|
|
segmentation_id = self._get_attribute(attrs, provider.SEGMENTATION_ID)
|
|
|
|
if attributes.is_attr_set(network_type):
|
|
segment = {api.NETWORK_TYPE: network_type,
|
|
api.PHYSICAL_NETWORK: physical_network,
|
|
api.SEGMENTATION_ID: segmentation_id}
|
|
self.type_manager.validate_provider_segment(segment)
|
|
|
|
return segment
|
|
|
|
if (attributes.is_attr_set(attrs.get(provider.PHYSICAL_NETWORK)) or
|
|
attributes.is_attr_set(attrs.get(provider.SEGMENTATION_ID))):
|
|
msg = _("network_type required if other provider attributes "
|
|
"specified")
|
|
raise exc.InvalidInput(error_message=msg)
|
|
|
|
def _get_attribute(self, attrs, key):
|
|
value = attrs.get(key)
|
|
if value is attributes.ATTR_NOT_SPECIFIED:
|
|
value = None
|
|
return value
|
|
|
|
def _extend_network_dict_provider(self, context, network):
|
|
id = network['id']
|
|
segments = self.get_network_segments(context, id)
|
|
if not segments:
|
|
LOG.error(_("Network %s has no segments"), id)
|
|
network[provider.NETWORK_TYPE] = None
|
|
network[provider.PHYSICAL_NETWORK] = None
|
|
network[provider.SEGMENTATION_ID] = None
|
|
elif len(segments) > 1:
|
|
network[provider.NETWORK_TYPE] = TYPE_MULTI_SEGMENT
|
|
network[provider.PHYSICAL_NETWORK] = None
|
|
network[provider.SEGMENTATION_ID] = None
|
|
else:
|
|
segment = segments[0]
|
|
network[provider.NETWORK_TYPE] = segment[api.NETWORK_TYPE]
|
|
network[provider.PHYSICAL_NETWORK] = segment[api.PHYSICAL_NETWORK]
|
|
network[provider.SEGMENTATION_ID] = segment[api.SEGMENTATION_ID]
|
|
|
|
def _filter_nets_provider(self, context, nets, filters):
|
|
# TODO(rkukura): Implement filtering.
|
|
return nets
|
|
|
|
def _extend_port_dict_binding(self, context, port):
|
|
# TODO(rkukura): Implement based on host_id, agents, and
|
|
# MechanismDrivers. Also set CAPABILITIES. Use
|
|
# extra_binding_dict if applicable, or maybe a new hook so
|
|
# base handles field processing and get_port and get_ports
|
|
# don't need to be overridden.
|
|
port[portbindings.VIF_TYPE] = portbindings.VIF_TYPE_UNBOUND
|
|
|
|
def _notify_port_updated(self, context, port):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
network_id = port['network_id']
|
|
segments = self.get_network_segments(context, network_id)
|
|
if not segments:
|
|
LOG.warning(_("In _notify_port_updated() for port %(port_id), "
|
|
"network %(network_id) has no segments"),
|
|
{'port_id': port['id'],
|
|
'network_id': network_id})
|
|
return
|
|
# TODO(rkukura): Use port binding to select segment.
|
|
segment = segments[0]
|
|
self.notifier.port_update(context, port,
|
|
segment[api.NETWORK_TYPE],
|
|
segment[api.SEGMENTATION_ID],
|
|
segment[api.PHYSICAL_NETWORK])
|
|
|
|
# TODO(apech): Need to override bulk operations
|
|
|
|
def create_network(self, context, network):
|
|
attrs = network['network']
|
|
segment = self._process_provider_create(context, attrs)
|
|
tenant_id = self._get_tenant_id_for_create(context, attrs)
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
self._ensure_default_security_group(context, tenant_id)
|
|
if segment:
|
|
self.type_manager.reserve_provider_segment(session, segment)
|
|
else:
|
|
segment = self.type_manager.allocate_tenant_segment(session)
|
|
result = super(Ml2Plugin, self).create_network(context, network)
|
|
id = result['id']
|
|
self._process_l3_create(context, result, attrs)
|
|
# REVISIT(rkukura): Consider moving all segment management
|
|
# to TypeManager.
|
|
db.add_network_segment(session, id, segment)
|
|
self._extend_network_dict_provider(context, result)
|
|
mech_context = driver_context.NetworkContext(self,
|
|
context,
|
|
result,
|
|
segments=[segment])
|
|
self.mechanism_manager.create_network_precommit(mech_context)
|
|
|
|
try:
|
|
self.mechanism_manager.create_network_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_("mechanism_manager.create_network failed, "
|
|
"deleting network '%s'"), result['id'])
|
|
self.delete_network(context, result['id'])
|
|
return result
|
|
|
|
def update_network(self, context, id, network):
|
|
provider._raise_if_updates_provider_attributes(network['network'])
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
original_network = super(Ml2Plugin, self).get_network(context, id)
|
|
updated_network = super(Ml2Plugin, self).update_network(context,
|
|
id,
|
|
network)
|
|
self._process_l3_update(context, updated_network,
|
|
network['network'])
|
|
self._extend_network_dict_provider(context, updated_network)
|
|
mech_context = driver_context.NetworkContext(
|
|
self, context, updated_network,
|
|
original_network=original_network)
|
|
self.mechanism_manager.update_network_precommit(mech_context)
|
|
|
|
# TODO(apech) - handle errors raised by update_network, potentially
|
|
# by re-calling update_network with the previous attributes. For
|
|
# now the error is propogated to the caller, which is expected to
|
|
# either undo/retry the operation or delete the resource.
|
|
self.mechanism_manager.update_network_postcommit(mech_context)
|
|
return updated_network
|
|
|
|
def get_network(self, context, id, fields=None):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
result = super(Ml2Plugin, self).get_network(context, id, None)
|
|
self._extend_network_dict_provider(context, result)
|
|
|
|
return self._fields(result, fields)
|
|
|
|
def get_networks(self, context, filters=None, fields=None,
|
|
sorts=None, limit=None, marker=None, page_reverse=False):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
nets = super(Ml2Plugin,
|
|
self).get_networks(context, filters, None, sorts,
|
|
limit, marker, page_reverse)
|
|
for net in nets:
|
|
self._extend_network_dict_provider(context, net)
|
|
|
|
nets = self._filter_nets_provider(context, nets, filters)
|
|
nets = self._filter_nets_l3(context, nets, filters)
|
|
|
|
return [self._fields(net, fields) for net in nets]
|
|
|
|
def get_network_segments(self, context, id):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
segments = db.get_network_segments(session, id)
|
|
return segments
|
|
|
|
def delete_network(self, context, id):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
network = self.get_network(context, id)
|
|
segments = self.get_network_segments(context, id)
|
|
mech_context = driver_context.NetworkContext(self,
|
|
context,
|
|
network,
|
|
segments=segments)
|
|
self.mechanism_manager.delete_network_precommit(mech_context)
|
|
super(Ml2Plugin, self).delete_network(context, id)
|
|
for segment in segments:
|
|
self.type_manager.release_segment(session, segment)
|
|
# The segment records are deleted via cascade from the
|
|
# network record, so explicit removal is not necessary.
|
|
|
|
try:
|
|
self.mechanism_manager.delete_network_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
# TODO(apech) - One or more mechanism driver failed to
|
|
# delete the network. Ideally we'd notify the caller of
|
|
# the fact that an error occurred.
|
|
pass
|
|
self.notifier.network_delete(context, id)
|
|
|
|
def create_port(self, context, port):
|
|
attrs = port['port']
|
|
attrs['status'] = const.PORT_STATUS_DOWN
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
self._ensure_default_security_group_on_port(context, port)
|
|
sgids = self._get_security_groups_on_port(context, port)
|
|
result = super(Ml2Plugin, self).create_port(context, port)
|
|
self._process_portbindings_create_and_update(context, attrs,
|
|
result)
|
|
self._process_port_create_security_group(context, result, sgids)
|
|
self._extend_port_dict_binding(context, result)
|
|
mech_context = driver_context.PortContext(self, context, result)
|
|
self.mechanism_manager.create_port_precommit(mech_context)
|
|
|
|
try:
|
|
self.mechanism_manager.create_port_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
with excutils.save_and_reraise_exception():
|
|
LOG.error(_("mechanism_manager.create_port failed, "
|
|
"deleting port '%s'"), result['id'])
|
|
self.delete_port(context, result['id'])
|
|
self.notify_security_groups_member_updated(context, result)
|
|
return result
|
|
|
|
def update_port(self, context, id, port):
|
|
attrs = port['port']
|
|
need_port_update_notify = False
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
original_port = super(Ml2Plugin, self).get_port(context, id)
|
|
updated_port = super(Ml2Plugin, self).update_port(context, id,
|
|
port)
|
|
need_port_update_notify = self.update_security_group_on_port(
|
|
context, id, port, original_port, updated_port)
|
|
self._process_portbindings_create_and_update(context,
|
|
attrs,
|
|
updated_port)
|
|
self._extend_port_dict_binding(context, updated_port)
|
|
mech_context = driver_context.PortContext(
|
|
self, context, updated_port,
|
|
original_port=original_port)
|
|
self.mechanism_manager.update_port_precommit(mech_context)
|
|
|
|
# TODO(apech) - handle errors raised by update_port, potentially
|
|
# by re-calling update_port with the previous attributes. For
|
|
# now the error is propogated to the caller, which is expected to
|
|
# either undo/retry the operation or delete the resource.
|
|
self.mechanism_manager.update_port_postcommit(mech_context)
|
|
|
|
need_port_update_notify |= self.is_security_group_member_updated(
|
|
context, original_port, updated_port)
|
|
|
|
if original_port['admin_state_up'] != updated_port['admin_state_up']:
|
|
need_port_update_notify = True
|
|
|
|
if need_port_update_notify:
|
|
self._notify_port_updated(context, updated_port)
|
|
|
|
return updated_port
|
|
|
|
def get_port(self, context, id, fields=None):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
port = super(Ml2Plugin, self).get_port(context, id, fields)
|
|
self._extend_port_dict_binding(context, port)
|
|
|
|
return self._fields(port, fields)
|
|
|
|
def get_ports(self, context, filters=None, fields=None,
|
|
sorts=None, limit=None, marker=None, page_reverse=False):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
ports = super(Ml2Plugin,
|
|
self).get_ports(context, filters, fields, sorts,
|
|
limit, marker, page_reverse)
|
|
# TODO(nati): filter by security group
|
|
for port in ports:
|
|
self._extend_port_dict_binding(context, port)
|
|
|
|
return [self._fields(port, fields) for port in ports]
|
|
|
|
def delete_port(self, context, id, l3_port_check=True):
|
|
if l3_port_check:
|
|
self.prevent_l3_port_deletion(context, id)
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
self.disassociate_floatingips(context, id)
|
|
port = self.get_port(context, id)
|
|
mech_context = driver_context.PortContext(self, context, port)
|
|
self.mechanism_manager.delete_port_precommit(mech_context)
|
|
self._delete_port_security_group_bindings(context, id)
|
|
super(Ml2Plugin, self).delete_port(context, id)
|
|
|
|
try:
|
|
self.mechanism_manager.delete_port_postcommit(mech_context)
|
|
except ml2_exc.MechanismDriverError:
|
|
# TODO(apech) - One or more mechanism driver failed to
|
|
# delete the port. Ideally we'd notify the caller of the
|
|
# fact that an error occurred.
|
|
pass
|
|
self.notify_security_groups_member_updated(context, port)
|