394 lines
16 KiB
Python
394 lines
16 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2013 Cloudbase Solutions SRL
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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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# @author: Alessandro Pilotti, Cloudbase Solutions Srl
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from oslo.config import cfg
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from quantum.api.v2 import attributes
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from quantum.common import exceptions as q_exc
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from quantum.common import topics
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from quantum.db import db_base_plugin_v2
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from quantum.db import l3_db
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# NOTE: quota_db cannot be removed, it is for db model
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from quantum.db import quota_db
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from quantum.extensions import portbindings
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from quantum.extensions import providernet as provider
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from quantum.openstack.common import log as logging
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from quantum.openstack.common import rpc
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from quantum.plugins.hyperv import agent_notifier_api
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from quantum.plugins.hyperv.common import constants
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from quantum.plugins.hyperv import db as hyperv_db
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from quantum.plugins.hyperv import rpc_callbacks
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from quantum import policy
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DEFAULT_VLAN_RANGES = []
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hyperv_opts = [
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cfg.StrOpt('tenant_network_type', default='local',
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help=_("Network type for tenant networks "
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"(local, flat, vlan or none)")),
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cfg.ListOpt('network_vlan_ranges',
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default=DEFAULT_VLAN_RANGES,
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help=_("List of <physical_network>:<vlan_min>:<vlan_max> "
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"or <physical_network>")),
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]
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cfg.CONF.register_opts(hyperv_opts, "HYPERV")
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LOG = logging.getLogger(__name__)
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class BaseNetworkProvider(object):
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def __init__(self):
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self._db = hyperv_db.HyperVPluginDB()
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def create_network(self, session, attrs):
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pass
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def delete_network(self, session, binding):
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pass
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def extend_network_dict(self, network, binding):
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pass
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class LocalNetworkProvider(BaseNetworkProvider):
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def create_network(self, session, attrs):
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network_type = attrs.get(provider.NETWORK_TYPE)
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segmentation_id = attrs.get(provider.SEGMENTATION_ID)
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if attributes.is_attr_set(segmentation_id):
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msg = _("segmentation_id specified "
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"for %s network") % network_type
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raise q_exc.InvalidInput(error_message=msg)
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attrs[provider.SEGMENTATION_ID] = None
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physical_network = attrs.get(provider.PHYSICAL_NETWORK)
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if attributes.is_attr_set(physical_network):
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msg = _("physical_network specified "
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"for %s network") % network_type
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raise q_exc.InvalidInput(error_message=msg)
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attrs[provider.PHYSICAL_NETWORK] = None
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def extend_network_dict(self, network, binding):
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network[provider.PHYSICAL_NETWORK] = None
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network[provider.SEGMENTATION_ID] = None
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class FlatNetworkProvider(BaseNetworkProvider):
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def create_network(self, session, attrs):
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network_type = attrs.get(provider.NETWORK_TYPE)
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segmentation_id = attrs.get(provider.SEGMENTATION_ID)
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if attributes.is_attr_set(segmentation_id):
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msg = _("segmentation_id specified "
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"for %s network") % network_type
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raise q_exc.InvalidInput(error_message=msg)
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segmentation_id = constants.FLAT_VLAN_ID
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attrs[provider.SEGMENTATION_ID] = segmentation_id
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physical_network = attrs.get(provider.PHYSICAL_NETWORK)
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if not attributes.is_attr_set(physical_network):
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physical_network = self._db.reserve_flat_net(session)
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attrs[provider.PHYSICAL_NETWORK] = physical_network
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else:
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self._db.reserve_specific_flat_net(session, physical_network)
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def delete_network(self, session, binding):
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self._db.release_vlan(session, binding.physical_network,
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constants.FLAT_VLAN_ID)
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def extend_network_dict(self, network, binding):
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network[provider.PHYSICAL_NETWORK] = binding.physical_network
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class VlanNetworkProvider(BaseNetworkProvider):
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def create_network(self, session, attrs):
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segmentation_id = attrs.get(provider.SEGMENTATION_ID)
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if attributes.is_attr_set(segmentation_id):
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physical_network = attrs.get(provider.PHYSICAL_NETWORK)
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if not attributes.is_attr_set(physical_network):
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msg = _("physical_network not provided")
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raise q_exc.InvalidInput(error_message=msg)
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self._db.reserve_specific_vlan(session, physical_network,
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segmentation_id)
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else:
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(physical_network,
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segmentation_id) = self._db.reserve_vlan(session)
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attrs[provider.SEGMENTATION_ID] = segmentation_id
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attrs[provider.PHYSICAL_NETWORK] = physical_network
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def delete_network(self, session, binding):
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self._db.release_vlan(
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session, binding.physical_network,
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binding.segmentation_id)
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def extend_network_dict(self, network, binding):
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network[provider.PHYSICAL_NETWORK] = binding.physical_network
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network[provider.SEGMENTATION_ID] = binding.segmentation_id
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class HyperVQuantumPlugin(db_base_plugin_v2.QuantumDbPluginV2,
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l3_db.L3_NAT_db_mixin):
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# This attribute specifies whether the plugin supports or not
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# bulk operations. Name mangling is used in order to ensure it
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# is qualified by class
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__native_bulk_support = True
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supported_extension_aliases = ["provider", "router", "binding", "quotas"]
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network_view = "extension:provider_network:view"
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network_set = "extension:provider_network:set"
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binding_view = "extension:port_binding:view"
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binding_set = "extension:port_binding:set"
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def __init__(self, configfile=None):
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self._db = hyperv_db.HyperVPluginDB()
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self._db.initialize()
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self._set_tenant_network_type()
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self._parse_network_vlan_ranges()
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self._create_network_providers_map()
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self._db.sync_vlan_allocations(self._network_vlan_ranges)
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self._setup_rpc()
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def _set_tenant_network_type(self):
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tenant_network_type = cfg.CONF.HYPERV.tenant_network_type
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if tenant_network_type not in [constants.TYPE_LOCAL,
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constants.TYPE_FLAT,
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constants.TYPE_VLAN,
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constants.TYPE_NONE]:
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msg = _(
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"Invalid tenant_network_type: %(tenant_network_type)s. "
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"Agent terminated!") % locals()
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raise q_exc.InvalidInput(error_message=msg)
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self._tenant_network_type = tenant_network_type
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def _setup_rpc(self):
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# RPC support
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self.topic = topics.PLUGIN
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self.conn = rpc.create_connection(new=True)
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self.notifier = agent_notifier_api.AgentNotifierApi(
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topics.AGENT)
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self.callbacks = rpc_callbacks.HyperVRpcCallbacks(self.notifier)
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self.dispatcher = self.callbacks.create_rpc_dispatcher()
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self.conn.create_consumer(self.topic, self.dispatcher,
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fanout=False)
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# Consume from all consumers in a thread
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self.conn.consume_in_thread()
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def _check_view_auth(self, context, resource, action):
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return policy.check(context, action, resource)
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def _enforce_set_auth(self, context, resource, action):
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policy.enforce(context, action, resource)
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def _parse_network_vlan_ranges(self):
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self._network_vlan_ranges = {}
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for entry in cfg.CONF.HYPERV.network_vlan_ranges:
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entry = entry.strip()
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if ':' in entry:
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try:
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physical_network, vlan_min, vlan_max = entry.split(':')
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self._add_network_vlan_range(physical_network.strip(),
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int(vlan_min),
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int(vlan_max))
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except ValueError as ex:
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msg = _(
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"Invalid network VLAN range: "
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"'%(range)s' - %(e)s. Agent terminated!"), \
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{'range': entry, 'e': ex}
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raise q_exc.InvalidInput(error_message=msg)
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else:
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self._add_network(entry)
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LOG.info(_("Network VLAN ranges: %s"), self._network_vlan_ranges)
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def _add_network_vlan_range(self, physical_network, vlan_min, vlan_max):
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self._add_network(physical_network)
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self._network_vlan_ranges[physical_network].append(
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(vlan_min, vlan_max))
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def _add_network(self, physical_network):
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if physical_network not in self._network_vlan_ranges:
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self._network_vlan_ranges[physical_network] = []
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def _check_vlan_id_in_range(self, physical_network, vlan_id):
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for r in self._network_vlan_ranges[physical_network]:
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if vlan_id >= r[0] and vlan_id <= r[1]:
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return True
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return False
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def _create_network_providers_map(self):
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self._network_providers_map = {
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constants.TYPE_LOCAL: LocalNetworkProvider(),
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constants.TYPE_FLAT: FlatNetworkProvider(),
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constants.TYPE_VLAN: VlanNetworkProvider()
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}
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def _process_provider_create(self, context, session, attrs):
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network_type = attrs.get(provider.NETWORK_TYPE)
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network_type_set = attributes.is_attr_set(network_type)
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if not network_type_set:
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if self._tenant_network_type == constants.TYPE_NONE:
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raise q_exc.TenantNetworksDisabled()
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network_type = self._tenant_network_type
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attrs[provider.NETWORK_TYPE] = network_type
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if network_type not in self._network_providers_map:
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msg = _("Network type %s not supported") % network_type
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raise q_exc.InvalidInput(error_message=msg)
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p = self._network_providers_map[network_type]
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# Provider specific network creation
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p.create_network(session, attrs)
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if network_type_set:
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self._enforce_set_auth(context, attrs, self.network_set)
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def create_network(self, context, network):
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session = context.session
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with session.begin(subtransactions=True):
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network_attrs = network['network']
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self._process_provider_create(context, session, network_attrs)
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net = super(HyperVQuantumPlugin, self).create_network(
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context, network)
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network_type = network_attrs[provider.NETWORK_TYPE]
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physical_network = network_attrs[provider.PHYSICAL_NETWORK]
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segmentation_id = network_attrs[provider.SEGMENTATION_ID]
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self._db.add_network_binding(
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session, net['id'], network_type,
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physical_network, segmentation_id)
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self._process_l3_create(context, network['network'], net['id'])
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self._extend_network_dict_provider(context, net)
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self._extend_network_dict_l3(context, net)
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LOG.debug(_("Created network: %s"), net['id'])
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return net
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def _extend_network_dict_provider(self, context, network):
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if self._check_view_auth(context, network, self.network_view):
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binding = self._db.get_network_binding(
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context.session, network['id'])
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network[provider.NETWORK_TYPE] = binding.network_type
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p = self._network_providers_map[binding.network_type]
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p.extend_network_dict(network, binding)
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def _check_provider_update(self, context, attrs):
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network_type = attrs.get(provider.NETWORK_TYPE)
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physical_network = attrs.get(provider.PHYSICAL_NETWORK)
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segmentation_id = attrs.get(provider.SEGMENTATION_ID)
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network_type_set = attributes.is_attr_set(network_type)
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physical_network_set = attributes.is_attr_set(physical_network)
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segmentation_id_set = attributes.is_attr_set(segmentation_id)
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if not (network_type_set or physical_network_set or
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segmentation_id_set):
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return
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msg = _("plugin does not support updating provider attributes")
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raise q_exc.InvalidInput(error_message=msg)
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def update_network(self, context, id, network):
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network_attrs = network['network']
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self._check_provider_update(context, network_attrs)
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# Authorize before exposing plugin details to client
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self._enforce_set_auth(context, network_attrs, self.network_set)
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session = context.session
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with session.begin(subtransactions=True):
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net = super(HyperVQuantumPlugin, self).update_network(context, id,
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network)
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self._process_l3_update(context, network['network'], id)
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self._extend_network_dict_provider(context, net)
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self._extend_network_dict_l3(context, net)
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return net
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def delete_network(self, context, id):
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session = context.session
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with session.begin(subtransactions=True):
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binding = self._db.get_network_binding(session, id)
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super(HyperVQuantumPlugin, self).delete_network(context, id)
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p = self._network_providers_map[binding.network_type]
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p.delete_network(session, binding)
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# the network_binding record is deleted via cascade from
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# the network record, so explicit removal is not necessary
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self.notifier.network_delete(context, id)
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def get_network(self, context, id, fields=None):
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net = super(HyperVQuantumPlugin, self).get_network(context, id, None)
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self._extend_network_dict_provider(context, net)
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self._extend_network_dict_l3(context, net)
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return self._fields(net, fields)
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def get_networks(self, context, filters=None, fields=None):
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nets = super(HyperVQuantumPlugin, self).get_networks(
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context, filters, None)
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for net in nets:
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self._extend_network_dict_provider(context, net)
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self._extend_network_dict_l3(context, net)
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return [self._fields(net, fields) for net in nets]
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def _extend_port_dict_binding(self, context, port):
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if self._check_view_auth(context, port, self.binding_view):
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port[portbindings.VIF_TYPE] = portbindings.VIF_TYPE_HYPERV
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return port
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def create_port(self, context, port):
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port = super(HyperVQuantumPlugin, self).create_port(context, port)
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return self._extend_port_dict_binding(context, port)
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def get_port(self, context, id, fields=None):
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port = super(HyperVQuantumPlugin, self).get_port(context, id, fields)
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return self._fields(self._extend_port_dict_binding(context, port),
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fields)
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def get_ports(self, context, filters=None, fields=None):
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ports = super(HyperVQuantumPlugin, self).get_ports(
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context, filters, fields)
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return [self._fields(self._extend_port_dict_binding(context, port),
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fields) for port in ports]
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def update_port(self, context, id, port):
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original_port = super(HyperVQuantumPlugin, self).get_port(
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context, id)
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port = super(HyperVQuantumPlugin, self).update_port(context, id, port)
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if original_port['admin_state_up'] != port['admin_state_up']:
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binding = self._db.get_network_binding(
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None, port['network_id'])
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self.notifier.port_update(context, port,
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binding.network_type,
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binding.segmentation_id,
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binding.physical_network)
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return self._extend_port_dict_binding(context, port)
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def delete_port(self, context, id, l3_port_check=True):
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# if needed, check to see if this is a port owned by
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# and l3-router. If so, we should prevent deletion.
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if l3_port_check:
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self.prevent_l3_port_deletion(context, id)
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self.disassociate_floatingips(context, id)
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super(HyperVQuantumPlugin, self).delete_port(context, id)
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self.notifier.port_delete(context, id)
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