540 lines
24 KiB
Python
540 lines
24 KiB
Python
# Copyright (c) 2012 OpenStack Foundation.
|
|
#
|
|
# 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 sys
|
|
|
|
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 q_const
|
|
from neutron.common import exceptions as q_exc
|
|
from neutron.common import rpc as q_rpc
|
|
from neutron.common import topics
|
|
from neutron.common import utils
|
|
from neutron.db import agents_db
|
|
from neutron.db import agentschedulers_db
|
|
from neutron.db import api as db_api
|
|
from neutron.db import db_base_plugin_v2
|
|
from neutron.db import dhcp_rpc_base
|
|
from neutron.db import external_net_db
|
|
from neutron.db import extraroute_db
|
|
from neutron.db import l3_agentschedulers_db
|
|
from neutron.db import l3_gwmode_db
|
|
from neutron.db import l3_rpc_base
|
|
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 import manager
|
|
from neutron.openstack.common import importutils
|
|
from neutron.openstack.common import log as logging
|
|
from neutron.openstack.common import rpc
|
|
from neutron.openstack.common.rpc import proxy
|
|
from neutron.plugins.common import constants as svc_constants
|
|
from neutron.plugins.common import utils as plugin_utils
|
|
from neutron.plugins.linuxbridge.common import constants
|
|
from neutron.plugins.linuxbridge.db import l2network_db_v2 as db
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class LinuxBridgeRpcCallbacks(dhcp_rpc_base.DhcpRpcCallbackMixin,
|
|
l3_rpc_base.L3RpcCallbackMixin,
|
|
sg_db_rpc.SecurityGroupServerRpcCallbackMixin
|
|
):
|
|
|
|
# history
|
|
# 1.1 Support Security Group RPC
|
|
RPC_API_VERSION = '1.1'
|
|
# Device names start with "tap"
|
|
TAP_PREFIX_LEN = 3
|
|
|
|
def create_rpc_dispatcher(self):
|
|
'''Get the rpc dispatcher for this manager.
|
|
|
|
If a manager would like to set an rpc API version, or support more than
|
|
one class as the target of rpc messages, override this method.
|
|
'''
|
|
return q_rpc.PluginRpcDispatcher([self,
|
|
agents_db.AgentExtRpcCallback()])
|
|
|
|
@classmethod
|
|
def get_port_from_device(cls, device):
|
|
port = db.get_port_from_device(device[cls.TAP_PREFIX_LEN:])
|
|
if port:
|
|
port['device'] = device
|
|
return port
|
|
|
|
def get_device_details(self, rpc_context, **kwargs):
|
|
"""Agent requests device details."""
|
|
agent_id = kwargs.get('agent_id')
|
|
device = kwargs.get('device')
|
|
LOG.debug(_("Device %(device)s details requested from %(agent_id)s"),
|
|
{'device': device, 'agent_id': agent_id})
|
|
port = self.get_port_from_device(device)
|
|
if port:
|
|
binding = db.get_network_binding(db_api.get_session(),
|
|
port['network_id'])
|
|
(network_type,
|
|
segmentation_id) = constants.interpret_vlan_id(binding.vlan_id)
|
|
entry = {'device': device,
|
|
'network_type': network_type,
|
|
'physical_network': binding.physical_network,
|
|
'segmentation_id': segmentation_id,
|
|
'network_id': port['network_id'],
|
|
'port_id': port['id'],
|
|
'admin_state_up': port['admin_state_up']}
|
|
if cfg.CONF.AGENT.rpc_support_old_agents:
|
|
entry['vlan_id'] = binding.vlan_id
|
|
new_status = (q_const.PORT_STATUS_ACTIVE if port['admin_state_up']
|
|
else q_const.PORT_STATUS_DOWN)
|
|
if port['status'] != new_status:
|
|
db.set_port_status(port['id'], new_status)
|
|
else:
|
|
entry = {'device': device}
|
|
LOG.debug(_("%s can not be found in database"), device)
|
|
return entry
|
|
|
|
def update_device_down(self, rpc_context, **kwargs):
|
|
"""Device no longer exists on agent."""
|
|
# TODO(garyk) - live migration and port status
|
|
agent_id = kwargs.get('agent_id')
|
|
device = kwargs.get('device')
|
|
host = kwargs.get('host')
|
|
port = self.get_port_from_device(device)
|
|
LOG.debug(_("Device %(device)s no longer exists on %(agent_id)s"),
|
|
{'device': device, 'agent_id': agent_id})
|
|
plugin = manager.NeutronManager.get_plugin()
|
|
if port:
|
|
entry = {'device': device,
|
|
'exists': True}
|
|
if (host and not
|
|
plugin.get_port_host(rpc_context, port['id']) == host):
|
|
LOG.debug(_("Device %(device)s not bound to the"
|
|
" agent host %(host)s"),
|
|
{'device': device, 'host': host})
|
|
elif port['status'] != q_const.PORT_STATUS_DOWN:
|
|
# Set port status to DOWN
|
|
db.set_port_status(port['id'], q_const.PORT_STATUS_DOWN)
|
|
else:
|
|
entry = {'device': device,
|
|
'exists': False}
|
|
LOG.debug(_("%s can not be found in database"), device)
|
|
return entry
|
|
|
|
def update_device_up(self, rpc_context, **kwargs):
|
|
"""Device is up on agent."""
|
|
agent_id = kwargs.get('agent_id')
|
|
device = kwargs.get('device')
|
|
host = kwargs.get('host')
|
|
port = self.get_port_from_device(device)
|
|
LOG.debug(_("Device %(device)s up on %(agent_id)s"),
|
|
{'device': device, 'agent_id': agent_id})
|
|
plugin = manager.NeutronManager.get_plugin()
|
|
if port:
|
|
if (host and
|
|
not plugin.get_port_host(rpc_context, port['id']) == host):
|
|
LOG.debug(_("Device %(device)s not bound to the"
|
|
" agent host %(host)s"),
|
|
{'device': device, 'host': host})
|
|
return
|
|
elif port['status'] != q_const.PORT_STATUS_ACTIVE:
|
|
db.set_port_status(port['id'],
|
|
q_const.PORT_STATUS_ACTIVE)
|
|
else:
|
|
LOG.debug(_("%s can not be found in database"), device)
|
|
|
|
|
|
class AgentNotifierApi(proxy.RpcProxy,
|
|
sg_rpc.SecurityGroupAgentRpcApiMixin):
|
|
'''Agent side of the linux bridge rpc API.
|
|
|
|
API version history:
|
|
1.0 - Initial version.
|
|
1.1 - Added get_active_networks_info, create_dhcp_port,
|
|
and update_dhcp_port methods.
|
|
|
|
|
|
'''
|
|
|
|
BASE_RPC_API_VERSION = '1.1'
|
|
|
|
def __init__(self, topic):
|
|
super(AgentNotifierApi, self).__init__(
|
|
topic=topic, default_version=self.BASE_RPC_API_VERSION)
|
|
self.topic = topic
|
|
self.topic_network_delete = topics.get_topic_name(topic,
|
|
topics.NETWORK,
|
|
topics.DELETE)
|
|
self.topic_port_update = topics.get_topic_name(topic,
|
|
topics.PORT,
|
|
topics.UPDATE)
|
|
|
|
def network_delete(self, context, network_id):
|
|
self.fanout_cast(context,
|
|
self.make_msg('network_delete',
|
|
network_id=network_id),
|
|
topic=self.topic_network_delete)
|
|
|
|
def port_update(self, context, port, physical_network, vlan_id):
|
|
network_type, segmentation_id = constants.interpret_vlan_id(vlan_id)
|
|
kwargs = {'port': port,
|
|
'network_type': network_type,
|
|
'physical_network': physical_network,
|
|
'segmentation_id': segmentation_id}
|
|
if cfg.CONF.AGENT.rpc_support_old_agents:
|
|
kwargs['vlan_id'] = vlan_id
|
|
msg = self.make_msg('port_update', **kwargs)
|
|
self.fanout_cast(context, msg,
|
|
topic=self.topic_port_update)
|
|
|
|
|
|
class LinuxBridgePluginV2(db_base_plugin_v2.NeutronDbPluginV2,
|
|
external_net_db.External_net_db_mixin,
|
|
extraroute_db.ExtraRoute_db_mixin,
|
|
l3_gwmode_db.L3_NAT_db_mixin,
|
|
sg_db_rpc.SecurityGroupServerRpcMixin,
|
|
l3_agentschedulers_db.L3AgentSchedulerDbMixin,
|
|
agentschedulers_db.DhcpAgentSchedulerDbMixin,
|
|
portbindings_db.PortBindingMixin):
|
|
"""Implement the Neutron abstractions using Linux bridging.
|
|
|
|
A new VLAN is created for each network. An agent is relied upon
|
|
to perform the actual Linux bridge configuration on each host.
|
|
|
|
The provider extension is also supported. As discussed in
|
|
https://bugs.launchpad.net/neutron/+bug/1023156, this class could
|
|
be simplified, and filtering on extended attributes could be
|
|
handled, by adding support for extended attributes to the
|
|
NeutronDbPluginV2 base class. When that occurs, this class should
|
|
be updated to take advantage of it.
|
|
|
|
The port binding extension enables an external application relay
|
|
information to and from the plugin.
|
|
"""
|
|
|
|
# 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
|
|
|
|
_supported_extension_aliases = ["provider", "external-net", "router",
|
|
"ext-gw-mode", "binding", "quotas",
|
|
"security-group", "agent", "extraroute",
|
|
"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):
|
|
super(LinuxBridgePluginV2, self).__init__()
|
|
self.base_binding_dict = {
|
|
portbindings.VIF_TYPE: portbindings.VIF_TYPE_BRIDGE,
|
|
portbindings.VIF_DETAILS: {
|
|
# TODO(rkukura): Replace with new VIF security details
|
|
portbindings.CAP_PORT_FILTER:
|
|
'security-group' in self.supported_extension_aliases}}
|
|
self._parse_network_vlan_ranges()
|
|
db.sync_network_states(self.network_vlan_ranges)
|
|
self.tenant_network_type = cfg.CONF.VLANS.tenant_network_type
|
|
if self.tenant_network_type not in [svc_constants.TYPE_LOCAL,
|
|
svc_constants.TYPE_VLAN,
|
|
svc_constants.TYPE_NONE]:
|
|
LOG.error(_("Invalid tenant_network_type: %s. "
|
|
"Service terminated!"),
|
|
self.tenant_network_type)
|
|
sys.exit(1)
|
|
self._setup_rpc()
|
|
self.network_scheduler = importutils.import_object(
|
|
cfg.CONF.network_scheduler_driver
|
|
)
|
|
self.router_scheduler = importutils.import_object(
|
|
cfg.CONF.router_scheduler_driver
|
|
)
|
|
LOG.debug(_("Linux Bridge Plugin initialization complete"))
|
|
|
|
def _setup_rpc(self):
|
|
# RPC support
|
|
self.service_topics = {svc_constants.CORE: topics.PLUGIN,
|
|
svc_constants.L3_ROUTER_NAT: topics.L3PLUGIN}
|
|
self.conn = rpc.create_connection(new=True)
|
|
self.callbacks = LinuxBridgeRpcCallbacks()
|
|
self.dispatcher = self.callbacks.create_rpc_dispatcher()
|
|
for svc_topic in self.service_topics.values():
|
|
self.conn.create_consumer(svc_topic, self.dispatcher, fanout=False)
|
|
# Consume from all consumers in a thread
|
|
self.conn.consume_in_thread()
|
|
self.notifier = AgentNotifierApi(topics.AGENT)
|
|
self.agent_notifiers[q_const.AGENT_TYPE_DHCP] = (
|
|
dhcp_rpc_agent_api.DhcpAgentNotifyAPI()
|
|
)
|
|
self.agent_notifiers[q_const.AGENT_TYPE_L3] = (
|
|
l3_rpc_agent_api.L3AgentNotify
|
|
)
|
|
|
|
def _parse_network_vlan_ranges(self):
|
|
try:
|
|
self.network_vlan_ranges = plugin_utils.parse_network_vlan_ranges(
|
|
cfg.CONF.VLANS.network_vlan_ranges)
|
|
except Exception as ex:
|
|
LOG.error(_("%s. Agent terminated!"), ex)
|
|
sys.exit(1)
|
|
LOG.info(_("Network VLAN ranges: %s"), self.network_vlan_ranges)
|
|
|
|
def _add_network_vlan_range(self, physical_network, vlan_min, vlan_max):
|
|
self._add_network(physical_network)
|
|
self.network_vlan_ranges[physical_network].append((vlan_min, vlan_max))
|
|
|
|
def _add_network(self, physical_network):
|
|
if physical_network not in self.network_vlan_ranges:
|
|
self.network_vlan_ranges[physical_network] = []
|
|
|
|
def _extend_network_dict_provider(self, context, network):
|
|
binding = db.get_network_binding(context.session, network['id'])
|
|
if binding.vlan_id == constants.FLAT_VLAN_ID:
|
|
network[provider.NETWORK_TYPE] = svc_constants.TYPE_FLAT
|
|
network[provider.PHYSICAL_NETWORK] = binding.physical_network
|
|
network[provider.SEGMENTATION_ID] = None
|
|
elif binding.vlan_id == constants.LOCAL_VLAN_ID:
|
|
network[provider.NETWORK_TYPE] = svc_constants.TYPE_LOCAL
|
|
network[provider.PHYSICAL_NETWORK] = None
|
|
network[provider.SEGMENTATION_ID] = None
|
|
else:
|
|
network[provider.NETWORK_TYPE] = svc_constants.TYPE_VLAN
|
|
network[provider.PHYSICAL_NETWORK] = binding.physical_network
|
|
network[provider.SEGMENTATION_ID] = binding.vlan_id
|
|
|
|
def _process_provider_create(self, context, attrs):
|
|
network_type = attrs.get(provider.NETWORK_TYPE)
|
|
physical_network = attrs.get(provider.PHYSICAL_NETWORK)
|
|
segmentation_id = attrs.get(provider.SEGMENTATION_ID)
|
|
|
|
network_type_set = attributes.is_attr_set(network_type)
|
|
physical_network_set = attributes.is_attr_set(physical_network)
|
|
segmentation_id_set = attributes.is_attr_set(segmentation_id)
|
|
|
|
if not (network_type_set or physical_network_set or
|
|
segmentation_id_set):
|
|
return (None, None, None)
|
|
|
|
if not network_type_set:
|
|
msg = _("provider:network_type required")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
elif network_type == svc_constants.TYPE_FLAT:
|
|
if segmentation_id_set:
|
|
msg = _("provider:segmentation_id specified for flat network")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
else:
|
|
segmentation_id = constants.FLAT_VLAN_ID
|
|
elif network_type == svc_constants.TYPE_VLAN:
|
|
if not segmentation_id_set:
|
|
msg = _("provider:segmentation_id required")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
if not utils.is_valid_vlan_tag(segmentation_id):
|
|
msg = (_("provider:segmentation_id out of range "
|
|
"(%(min_id)s through %(max_id)s)") %
|
|
{'min_id': q_const.MIN_VLAN_TAG,
|
|
'max_id': q_const.MAX_VLAN_TAG})
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
elif network_type == svc_constants.TYPE_LOCAL:
|
|
if physical_network_set:
|
|
msg = _("provider:physical_network specified for local "
|
|
"network")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
else:
|
|
physical_network = None
|
|
if segmentation_id_set:
|
|
msg = _("provider:segmentation_id specified for local "
|
|
"network")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
else:
|
|
segmentation_id = constants.LOCAL_VLAN_ID
|
|
else:
|
|
msg = _("provider:network_type %s not supported") % network_type
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
|
|
if network_type in [svc_constants.TYPE_VLAN, svc_constants.TYPE_FLAT]:
|
|
if physical_network_set:
|
|
if physical_network not in self.network_vlan_ranges:
|
|
msg = (_("Unknown provider:physical_network %s") %
|
|
physical_network)
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
elif 'default' in self.network_vlan_ranges:
|
|
physical_network = 'default'
|
|
else:
|
|
msg = _("provider:physical_network required")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
|
|
return (network_type, physical_network, segmentation_id)
|
|
|
|
def create_network(self, context, network):
|
|
(network_type, physical_network,
|
|
vlan_id) = self._process_provider_create(context,
|
|
network['network'])
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
#set up default security groups
|
|
tenant_id = self._get_tenant_id_for_create(
|
|
context, network['network'])
|
|
self._ensure_default_security_group(context, tenant_id)
|
|
|
|
if not network_type:
|
|
# tenant network
|
|
network_type = self.tenant_network_type
|
|
if network_type == svc_constants.TYPE_NONE:
|
|
raise q_exc.TenantNetworksDisabled()
|
|
elif network_type == svc_constants.TYPE_VLAN:
|
|
physical_network, vlan_id = db.reserve_network(session)
|
|
else: # TYPE_LOCAL
|
|
vlan_id = constants.LOCAL_VLAN_ID
|
|
else:
|
|
# provider network
|
|
if network_type in [svc_constants.TYPE_VLAN,
|
|
svc_constants.TYPE_FLAT]:
|
|
db.reserve_specific_network(session, physical_network,
|
|
vlan_id)
|
|
# no reservation needed for TYPE_LOCAL
|
|
net = super(LinuxBridgePluginV2, self).create_network(context,
|
|
network)
|
|
db.add_network_binding(session, net['id'],
|
|
physical_network, vlan_id)
|
|
self._process_l3_create(context, net, network['network'])
|
|
self._extend_network_dict_provider(context, net)
|
|
# note - exception will rollback entire transaction
|
|
return net
|
|
|
|
def update_network(self, context, id, network):
|
|
provider._raise_if_updates_provider_attributes(network['network'])
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
net = super(LinuxBridgePluginV2, self).update_network(context, id,
|
|
network)
|
|
self._process_l3_update(context, net, network['network'])
|
|
self._extend_network_dict_provider(context, net)
|
|
return net
|
|
|
|
def delete_network(self, context, id):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
binding = db.get_network_binding(session, id)
|
|
super(LinuxBridgePluginV2, self).delete_network(context, id)
|
|
if binding.vlan_id != constants.LOCAL_VLAN_ID:
|
|
db.release_network(session, binding.physical_network,
|
|
binding.vlan_id, self.network_vlan_ranges)
|
|
# the network_binding record is deleted via cascade from
|
|
# the network record, so explicit removal is not necessary
|
|
self.notifier.network_delete(context, id)
|
|
|
|
def get_network(self, context, id, fields=None):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
net = super(LinuxBridgePluginV2, self).get_network(context,
|
|
id, None)
|
|
self._extend_network_dict_provider(context, net)
|
|
return self._fields(net, 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(LinuxBridgePluginV2,
|
|
self).get_networks(context, filters, None, sorts,
|
|
limit, marker, page_reverse)
|
|
for net in nets:
|
|
self._extend_network_dict_provider(context, net)
|
|
|
|
return [self._fields(net, fields) for net in nets]
|
|
|
|
def create_port(self, context, port):
|
|
session = context.session
|
|
port_data = port['port']
|
|
with session.begin(subtransactions=True):
|
|
self._ensure_default_security_group_on_port(context, port)
|
|
sgids = self._get_security_groups_on_port(context, port)
|
|
# Set port status as 'DOWN'. This will be updated by agent
|
|
port['port']['status'] = q_const.PORT_STATUS_DOWN
|
|
|
|
port = super(LinuxBridgePluginV2,
|
|
self).create_port(context, port)
|
|
self._process_portbindings_create_and_update(context,
|
|
port_data,
|
|
port)
|
|
self._process_port_create_security_group(
|
|
context, port, sgids)
|
|
self.notify_security_groups_member_updated(context, port)
|
|
return port
|
|
|
|
def update_port(self, context, id, port):
|
|
original_port = self.get_port(context, id)
|
|
session = context.session
|
|
need_port_update_notify = False
|
|
|
|
with session.begin(subtransactions=True):
|
|
updated_port = super(LinuxBridgePluginV2, self).update_port(
|
|
context, id, port)
|
|
self._process_portbindings_create_and_update(context,
|
|
port['port'],
|
|
updated_port)
|
|
need_port_update_notify = self.update_security_group_on_port(
|
|
context, id, port, original_port, updated_port)
|
|
|
|
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 delete_port(self, context, id, l3_port_check=True):
|
|
|
|
# if needed, check to see if this is a port owned by
|
|
# and l3-router. If so, we should prevent deletion.
|
|
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)
|
|
self._delete_port_security_group_bindings(context, id)
|
|
super(LinuxBridgePluginV2, self).delete_port(context, id)
|
|
|
|
self.notify_security_groups_member_updated(context, port)
|
|
|
|
def _notify_port_updated(self, context, port):
|
|
binding = db.get_network_binding(context.session,
|
|
port['network_id'])
|
|
self.notifier.port_update(context, port,
|
|
binding.physical_network,
|
|
binding.vlan_id)
|