f7ae63c6f5
Config imports are needed for correct init quota_db is required to make sure quota database model at the proper timing Change-Id: I885ed1f673cfc4c6331818ad68e2a505f7d69188
537 lines
24 KiB
Python
537 lines
24 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
|
|
# Copyright 2011 Nicira Networks, 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.
|
|
# @author: Somik Behera, Nicira Networks, Inc.
|
|
# @author: Brad Hall, Nicira Networks, Inc.
|
|
# @author: Dan Wendlandt, Nicira Networks, Inc.
|
|
# @author: Dave Lapsley, Nicira Networks, Inc.
|
|
# @author: Aaron Rosen, Nicira Networks, Inc.
|
|
# @author: Bob Kukura, Red Hat, Inc.
|
|
|
|
import sys
|
|
|
|
from quantum.api.v2 import attributes
|
|
from quantum.common import constants as q_const
|
|
from quantum.common import exceptions as q_exc
|
|
from quantum.common import rpc as q_rpc
|
|
from quantum.common import topics
|
|
from quantum.db import db_base_plugin_v2
|
|
from quantum.db import dhcp_rpc_base
|
|
from quantum.db import l3_db
|
|
from quantum.db import l3_rpc_base
|
|
# NOTE: quota_db cannot be removed, it is for db model
|
|
from quantum.db import quota_db
|
|
from quantum.extensions import portbindings
|
|
from quantum.extensions import providernet as provider
|
|
from quantum.openstack.common import cfg
|
|
from quantum.openstack.common import log as logging
|
|
from quantum.openstack.common import rpc
|
|
from quantum.openstack.common.rpc import proxy
|
|
from quantum.plugins.openvswitch.common import config
|
|
from quantum.plugins.openvswitch.common import constants
|
|
from quantum.plugins.openvswitch import ovs_db_v2
|
|
from quantum import policy
|
|
|
|
|
|
LOG = logging.getLogger(__name__)
|
|
|
|
|
|
class OVSRpcCallbacks(dhcp_rpc_base.DhcpRpcCallbackMixin,
|
|
l3_rpc_base.L3RpcCallbackMixin):
|
|
|
|
# Set RPC API version to 1.0 by default.
|
|
RPC_API_VERSION = '1.0'
|
|
|
|
def __init__(self, notifier):
|
|
self.notifier = notifier
|
|
|
|
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])
|
|
|
|
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"),
|
|
locals())
|
|
port = ovs_db_v2.get_port(device)
|
|
if port:
|
|
binding = ovs_db_v2.get_network_binding(None, port['network_id'])
|
|
entry = {'device': device,
|
|
'network_id': port['network_id'],
|
|
'port_id': port['id'],
|
|
'admin_state_up': port['admin_state_up'],
|
|
'network_type': binding.network_type,
|
|
'segmentation_id': binding.segmentation_id,
|
|
'physical_network': binding.physical_network}
|
|
# Set the port status to UP
|
|
ovs_db_v2.set_port_status(port['id'], q_const.PORT_STATUS_ACTIVE)
|
|
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')
|
|
LOG.debug(_("Device %(device)s no longer exists on %(agent_id)s"),
|
|
locals())
|
|
port = ovs_db_v2.get_port(device)
|
|
if port:
|
|
entry = {'device': device,
|
|
'exists': True}
|
|
# Set port status to DOWN
|
|
ovs_db_v2.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 tunnel_sync(self, rpc_context, **kwargs):
|
|
"""Update new tunnel.
|
|
|
|
Updates the datbase with the tunnel IP. All listening agents will also
|
|
be notified about the new tunnel IP.
|
|
"""
|
|
tunnel_ip = kwargs.get('tunnel_ip')
|
|
# Update the database with the IP
|
|
tunnel = ovs_db_v2.add_tunnel_endpoint(tunnel_ip)
|
|
tunnels = ovs_db_v2.get_tunnel_endpoints()
|
|
entry = dict()
|
|
entry['tunnels'] = tunnels
|
|
# Notify all other listening agents
|
|
self.notifier.tunnel_update(rpc_context, tunnel.ip_address,
|
|
tunnel.id)
|
|
# Return the list of tunnels IP's to the agent
|
|
return entry
|
|
|
|
|
|
class AgentNotifierApi(proxy.RpcProxy):
|
|
'''Agent side of the openvswitch rpc API.
|
|
|
|
API version history:
|
|
1.0 - Initial version.
|
|
|
|
'''
|
|
|
|
BASE_RPC_API_VERSION = '1.0'
|
|
|
|
def __init__(self, topic):
|
|
super(AgentNotifierApi, self).__init__(
|
|
topic=topic, default_version=self.BASE_RPC_API_VERSION)
|
|
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)
|
|
self.topic_tunnel_update = topics.get_topic_name(topic,
|
|
constants.TUNNEL,
|
|
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, network_type, segmentation_id,
|
|
physical_network):
|
|
self.fanout_cast(context,
|
|
self.make_msg('port_update',
|
|
port=port,
|
|
network_type=network_type,
|
|
segmentation_id=segmentation_id,
|
|
physical_network=physical_network),
|
|
topic=self.topic_port_update)
|
|
|
|
def tunnel_update(self, context, tunnel_ip, tunnel_id):
|
|
self.fanout_cast(context,
|
|
self.make_msg('tunnel_update',
|
|
tunnel_ip=tunnel_ip,
|
|
tunnel_id=tunnel_id),
|
|
topic=self.topic_tunnel_update)
|
|
|
|
|
|
class OVSQuantumPluginV2(db_base_plugin_v2.QuantumDbPluginV2,
|
|
l3_db.L3_NAT_db_mixin):
|
|
"""Implement the Quantum abstractions using Open vSwitch.
|
|
|
|
Depending on whether tunneling is enabled, either a GRE tunnel or
|
|
a new VLAN is created for each network. An agent is relied upon to
|
|
perform the actual OVS configuration on each host.
|
|
|
|
The provider extension is also supported. As discussed in
|
|
https://bugs.launchpad.net/quantum/+bug/1023156, this class could
|
|
be simplified, and filtering on extended attributes could be
|
|
handled, by adding support for extended attributes to the
|
|
QuantumDbPluginV2 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 operations. Name mangling is used in order to ensure it
|
|
# is qualified by class
|
|
__native_bulk_support = True
|
|
supported_extension_aliases = ["provider", "router", "binding", "quotas"]
|
|
|
|
network_view = "extension:provider_network:view"
|
|
network_set = "extension:provider_network:set"
|
|
binding_view = "extension:port_binding:view"
|
|
binding_set = "extension:port_binding:set"
|
|
|
|
def __init__(self, configfile=None):
|
|
ovs_db_v2.initialize()
|
|
self._parse_network_vlan_ranges()
|
|
ovs_db_v2.sync_vlan_allocations(self.network_vlan_ranges)
|
|
self.tenant_network_type = cfg.CONF.OVS.tenant_network_type
|
|
if self.tenant_network_type not in [constants.TYPE_LOCAL,
|
|
constants.TYPE_VLAN,
|
|
constants.TYPE_GRE,
|
|
constants.TYPE_NONE]:
|
|
LOG.error(_("Invalid tenant_network_type: %s. "
|
|
"Agent terminated!"),
|
|
self.tenant_network_type)
|
|
sys.exit(1)
|
|
self.enable_tunneling = cfg.CONF.OVS.enable_tunneling
|
|
self.tunnel_id_ranges = []
|
|
if self.enable_tunneling:
|
|
self._parse_tunnel_id_ranges()
|
|
ovs_db_v2.sync_tunnel_allocations(self.tunnel_id_ranges)
|
|
elif self.tenant_network_type == constants.TYPE_GRE:
|
|
LOG.error(_("Tunneling disabled but tenant_network_type is 'gre'. "
|
|
"Agent terminated!"))
|
|
sys.exit(1)
|
|
self.setup_rpc()
|
|
|
|
def setup_rpc(self):
|
|
# RPC support
|
|
self.topic = topics.PLUGIN
|
|
self.conn = rpc.create_connection(new=True)
|
|
self.notifier = AgentNotifierApi(topics.AGENT)
|
|
self.callbacks = OVSRpcCallbacks(self.notifier)
|
|
self.dispatcher = self.callbacks.create_rpc_dispatcher()
|
|
self.conn.create_consumer(self.topic, self.dispatcher,
|
|
fanout=False)
|
|
# Consume from all consumers in a thread
|
|
self.conn.consume_in_thread()
|
|
|
|
def _parse_network_vlan_ranges(self):
|
|
self.network_vlan_ranges = {}
|
|
for entry in cfg.CONF.OVS.network_vlan_ranges:
|
|
entry = entry.strip()
|
|
if ':' in entry:
|
|
try:
|
|
physical_network, vlan_min, vlan_max = entry.split(':')
|
|
self._add_network_vlan_range(physical_network.strip(),
|
|
int(vlan_min),
|
|
int(vlan_max))
|
|
except ValueError as ex:
|
|
LOG.error(_("Invalid network VLAN range: "
|
|
"'%(range)s' - %(e)s. Agent terminated!"),
|
|
{'range': entry, 'e': ex})
|
|
sys.exit(1)
|
|
else:
|
|
self._add_network(entry)
|
|
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 _parse_tunnel_id_ranges(self):
|
|
for entry in cfg.CONF.OVS.tunnel_id_ranges:
|
|
entry = entry.strip()
|
|
try:
|
|
tun_min, tun_max = entry.split(':')
|
|
self.tunnel_id_ranges.append((int(tun_min), int(tun_max)))
|
|
except ValueError as ex:
|
|
LOG.error(_("Invalid tunnel ID range: "
|
|
"'%(range)s' - %(e)s. Agent terminated!"),
|
|
{'range': entry, 'e': ex})
|
|
sys.exit(1)
|
|
LOG.info(_("Tunnel ID ranges: %s"), self.tunnel_id_ranges)
|
|
|
|
# TODO(rkukura) Use core mechanism for attribute authorization
|
|
# when available.
|
|
|
|
def _check_view_auth(self, context, resource, action):
|
|
return policy.check(context, action, resource)
|
|
|
|
def _enforce_set_auth(self, context, resource, action):
|
|
policy.enforce(context, action, resource)
|
|
|
|
def _extend_network_dict_provider(self, context, network):
|
|
if self._check_view_auth(context, network, self.network_view):
|
|
binding = ovs_db_v2.get_network_binding(context.session,
|
|
network['id'])
|
|
network[provider.NETWORK_TYPE] = binding.network_type
|
|
if binding.network_type == constants.TYPE_GRE:
|
|
network[provider.PHYSICAL_NETWORK] = None
|
|
network[provider.SEGMENTATION_ID] = binding.segmentation_id
|
|
elif binding.network_type == constants.TYPE_FLAT:
|
|
network[provider.PHYSICAL_NETWORK] = binding.physical_network
|
|
network[provider.SEGMENTATION_ID] = None
|
|
elif binding.network_type == constants.TYPE_VLAN:
|
|
network[provider.PHYSICAL_NETWORK] = binding.physical_network
|
|
network[provider.SEGMENTATION_ID] = binding.segmentation_id
|
|
elif binding.network_type == constants.TYPE_LOCAL:
|
|
network[provider.PHYSICAL_NETWORK] = None
|
|
network[provider.SEGMENTATION_ID] = None
|
|
|
|
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)
|
|
|
|
# Authorize before exposing plugin details to client
|
|
self._enforce_set_auth(context, attrs, self.network_set)
|
|
|
|
if not network_type_set:
|
|
msg = _("provider:network_type required")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
elif network_type == 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 == constants.TYPE_VLAN:
|
|
if not segmentation_id_set:
|
|
msg = _("provider:segmentation_id required")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
if segmentation_id < 1 or segmentation_id > 4094:
|
|
msg = _("provider:segmentation_id out of range "
|
|
"(1 through 4094)")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
elif network_type == constants.TYPE_GRE:
|
|
if not self.enable_tunneling:
|
|
msg = _("GRE networks are not enabled")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
if physical_network_set:
|
|
msg = _("provider:physical_network specified for GRE "
|
|
"network")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
else:
|
|
physical_network = None
|
|
if not segmentation_id_set:
|
|
msg = _("provider:segmentation_id required")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
elif network_type == 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 = None
|
|
else:
|
|
msg = _("provider:network_type %s not supported") % network_type
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
|
|
if network_type in [constants.TYPE_VLAN, 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 _check_provider_update(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
|
|
|
|
# Authorize before exposing plugin details to client
|
|
self._enforce_set_auth(context, attrs, self.network_set)
|
|
|
|
msg = _("plugin does not support updating provider attributes")
|
|
raise q_exc.InvalidInput(error_message=msg)
|
|
|
|
def create_network(self, context, network):
|
|
(network_type, physical_network,
|
|
segmentation_id) = self._process_provider_create(context,
|
|
network['network'])
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
if not network_type:
|
|
# tenant network
|
|
network_type = self.tenant_network_type
|
|
if network_type == constants.TYPE_NONE:
|
|
raise q_exc.TenantNetworksDisabled()
|
|
elif network_type == constants.TYPE_VLAN:
|
|
(physical_network,
|
|
segmentation_id) = ovs_db_v2.reserve_vlan(session)
|
|
elif network_type == constants.TYPE_GRE:
|
|
segmentation_id = ovs_db_v2.reserve_tunnel(session)
|
|
# no reservation needed for TYPE_LOCAL
|
|
else:
|
|
# provider network
|
|
if network_type in [constants.TYPE_VLAN, constants.TYPE_FLAT]:
|
|
ovs_db_v2.reserve_specific_vlan(session, physical_network,
|
|
segmentation_id)
|
|
elif network_type == constants.TYPE_GRE:
|
|
ovs_db_v2.reserve_specific_tunnel(session, segmentation_id)
|
|
# no reservation needed for TYPE_LOCAL
|
|
net = super(OVSQuantumPluginV2, self).create_network(context,
|
|
network)
|
|
ovs_db_v2.add_network_binding(session, net['id'], network_type,
|
|
physical_network, segmentation_id)
|
|
|
|
self._process_l3_create(context, network['network'], net['id'])
|
|
self._extend_network_dict_provider(context, net)
|
|
self._extend_network_dict_l3(context, net)
|
|
# note - exception will rollback entire transaction
|
|
LOG.debug(_("Created network: %s"), net['id'])
|
|
return net
|
|
|
|
def update_network(self, context, id, network):
|
|
self._check_provider_update(context, network['network'])
|
|
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
net = super(OVSQuantumPluginV2, self).update_network(context, id,
|
|
network)
|
|
self._process_l3_update(context, network['network'], id)
|
|
self._extend_network_dict_provider(context, net)
|
|
self._extend_network_dict_l3(context, net)
|
|
return net
|
|
|
|
def delete_network(self, context, id):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
binding = ovs_db_v2.get_network_binding(session, id)
|
|
super(OVSQuantumPluginV2, self).delete_network(context, id)
|
|
if binding.network_type == constants.TYPE_GRE:
|
|
ovs_db_v2.release_tunnel(session, binding.segmentation_id,
|
|
self.tunnel_id_ranges)
|
|
elif binding.network_type in [constants.TYPE_VLAN,
|
|
constants.TYPE_FLAT]:
|
|
ovs_db_v2.release_vlan(session, binding.physical_network,
|
|
binding.segmentation_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(OVSQuantumPluginV2, self).get_network(context,
|
|
id, None)
|
|
self._extend_network_dict_provider(context, net)
|
|
self._extend_network_dict_l3(context, net)
|
|
return self._fields(net, fields)
|
|
|
|
def get_networks(self, context, filters=None, fields=None):
|
|
session = context.session
|
|
with session.begin(subtransactions=True):
|
|
nets = super(OVSQuantumPluginV2, self).get_networks(context,
|
|
filters,
|
|
None)
|
|
for net in nets:
|
|
self._extend_network_dict_provider(context, net)
|
|
self._extend_network_dict_l3(context, net)
|
|
|
|
# TODO(rkukura): Filter on extended provider attributes.
|
|
nets = self._filter_nets_l3(context, nets, filters)
|
|
|
|
return [self._fields(net, fields) for net in nets]
|
|
|
|
def _extend_port_dict_binding(self, context, port):
|
|
if self._check_view_auth(context, port, self.binding_view):
|
|
port[portbindings.VIF_TYPE] = portbindings.VIF_TYPE_OVS
|
|
return port
|
|
|
|
def create_port(self, context, port):
|
|
port = super(OVSQuantumPluginV2, self).create_port(context, port)
|
|
return self._extend_port_dict_binding(context, port)
|
|
|
|
def get_port(self, context, id, fields=None):
|
|
port = super(OVSQuantumPluginV2, self).get_port(context, id, fields)
|
|
return self._fields(self._extend_port_dict_binding(context, port),
|
|
fields)
|
|
|
|
def get_ports(self, context, filters=None, fields=None):
|
|
ports = super(OVSQuantumPluginV2, self).get_ports(context, filters,
|
|
fields)
|
|
return [self._fields(self._extend_port_dict_binding(context, port),
|
|
fields) for port in ports]
|
|
|
|
def update_port(self, context, id, port):
|
|
original_port = super(OVSQuantumPluginV2, self).get_port(context,
|
|
id)
|
|
port = super(OVSQuantumPluginV2, self).update_port(context, id, port)
|
|
if original_port['admin_state_up'] != port['admin_state_up']:
|
|
binding = ovs_db_v2.get_network_binding(None,
|
|
port['network_id'])
|
|
self.notifier.port_update(context, port,
|
|
binding.network_type,
|
|
binding.segmentation_id,
|
|
binding.physical_network)
|
|
return self._extend_port_dict_binding(context, 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)
|
|
self.disassociate_floatingips(context, id)
|
|
return super(OVSQuantumPluginV2, self).delete_port(context, id)
|