aa100f9f66
Fixes bug 1048140 To remove an external port, we need to use the same context used when it is created. Change-Id: Ia89b086b420741e7e0e92625b62e46fcfe9dbbba
722 lines
32 KiB
Python
722 lines
32 KiB
Python
"""
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# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2012 Nicira Networks, Inc. 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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#
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# @author: Dan Wendlandt, Nicira, Inc
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#
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"""
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import logging
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import netaddr
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import sqlalchemy as sa
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from sqlalchemy import orm
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from sqlalchemy.orm import exc
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from sqlalchemy.sql import expression as expr
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import webob.exc as w_exc
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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 utils
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from quantum.db import db_base_plugin_v2
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from quantum.db import model_base
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from quantum.db import models_v2
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from quantum.extensions import l3
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from quantum.openstack.common import cfg
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from quantum import policy
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LOG = logging.getLogger(__name__)
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l3_opts = [
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cfg.StrOpt('metadata_ip_address', default='127.0.0.1'),
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cfg.IntOpt('metadata_port', default=8775)
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]
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# Register the configuration options
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cfg.CONF.register_opts(l3_opts)
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DEVICE_OWNER_ROUTER_INTF = "network:router_interface"
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DEVICE_OWNER_ROUTER_GW = "network:router_gateway"
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DEVICE_OWNER_FLOATINGIP = "network:floatingip"
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class Router(model_base.BASEV2, models_v2.HasId, models_v2.HasTenant):
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"""Represents a v2 quantum router."""
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name = sa.Column(sa.String(255))
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status = sa.Column(sa.String(16))
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admin_state_up = sa.Column(sa.Boolean)
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gw_port_id = sa.Column(sa.String(36), sa.ForeignKey('ports.id'))
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gw_port = orm.relationship(models_v2.Port)
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class ExternalNetwork(model_base.BASEV2):
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network_id = sa.Column(sa.String(36),
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sa.ForeignKey('networks.id', ondelete="CASCADE"),
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primary_key=True)
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class FloatingIP(model_base.BASEV2, models_v2.HasId, models_v2.HasTenant):
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"""Represents a floating IP, which may or many not be
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allocated to a tenant, and may or may not be associated with
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an internal port/ip address/router.
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"""
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floating_ip_address = sa.Column(sa.String(64), nullable=False)
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floating_network_id = sa.Column(sa.String(36), nullable=False)
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floating_port_id = sa.Column(sa.String(36), sa.ForeignKey('ports.id'),
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nullable=False)
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fixed_port_id = sa.Column(sa.String(36), sa.ForeignKey('ports.id'))
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fixed_ip_address = sa.Column(sa.String(64))
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router_id = sa.Column(sa.String(36), sa.ForeignKey('routers.id'))
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class L3_NAT_db_mixin(l3.RouterPluginBase):
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"""Mixin class to add L3/NAT router methods to db_plugin_base_v2"""
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def _network_model_hook(self, context, original_model, query):
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query = query.outerjoin(ExternalNetwork,
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(original_model.id ==
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ExternalNetwork.network_id))
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return query
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def _network_filter_hook(self, context, original_model, conditions):
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if conditions is not None and not hasattr(conditions, '__iter__'):
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conditions = (conditions, )
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# Apply the external network filter only in non-admin context
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if not context.is_admin and hasattr(original_model, 'tenant_id'):
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conditions = expr.or_(ExternalNetwork.network_id != expr.null(),
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*conditions)
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return conditions
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# TODO(salvatore-orlando): Perform this operation without explicitly
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# referring to db_base_plugin_v2, as plugins that do not extend from it
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# might exist in the future
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db_base_plugin_v2.QuantumDbPluginV2.register_model_query_hook(
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models_v2.Network,
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"external_net",
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_network_model_hook,
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_network_filter_hook)
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def _get_router(self, context, id):
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try:
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router = self._get_by_id(context, Router, id)
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except exc.NoResultFound:
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raise l3.RouterNotFound(router_id=id)
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except exc.MultipleResultsFound:
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LOG.error('Multiple routers match for %s' % id)
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raise l3.RouterNotFound(router_id=id)
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return router
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def _make_router_dict(self, router, fields=None):
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res = {'id': router['id'],
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'name': router['name'],
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'tenant_id': router['tenant_id'],
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'admin_state_up': router['admin_state_up'],
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'status': router['status'],
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'external_gateway_info': None}
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if router['gw_port_id']:
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nw_id = router.gw_port['network_id']
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res['external_gateway_info'] = {'network_id': nw_id}
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return self._fields(res, fields)
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def create_router(self, context, router):
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r = router['router']
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has_gw_info = False
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if 'external_gateway_info' in r:
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has_gw_info = True
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gw_info = r['external_gateway_info']
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del r['external_gateway_info']
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tenant_id = self._get_tenant_id_for_create(context, r)
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with context.session.begin(subtransactions=True):
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# pre-generate id so it will be available when
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# configuring external gw port
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router_db = Router(id=utils.str_uuid(),
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tenant_id=tenant_id,
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name=r['name'],
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admin_state_up=r['admin_state_up'],
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status="ACTIVE")
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context.session.add(router_db)
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if has_gw_info:
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self._update_router_gw_info(context, router_db['id'], gw_info)
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return self._make_router_dict(router_db)
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def update_router(self, context, id, router):
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r = router['router']
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has_gw_info = False
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if 'external_gateway_info' in r:
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has_gw_info = True
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gw_info = r['external_gateway_info']
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del r['external_gateway_info']
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with context.session.begin(subtransactions=True):
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if has_gw_info:
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self._update_router_gw_info(context, id, gw_info)
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router_db = self._get_router(context, id)
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# Ensure we actually have something to update
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if r.keys():
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router_db.update(r)
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return self._make_router_dict(router_db)
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def _update_router_gw_info(self, context, router_id, info):
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# TODO(salvatore-orlando): guarantee atomic behavior also across
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# operations that span beyond the model classes handled by this
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# class (e.g.: delete_port)
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router = self._get_router(context, router_id)
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gw_port = router.gw_port
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network_id = info.get('network_id', None) if info else None
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if network_id:
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self._get_network(context, network_id)
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if not self._network_is_external(context, network_id):
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msg = "Network %s is not a valid external network" % network_id
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raise q_exc.BadRequest(resource='router', msg=msg)
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# figure out if we need to delete existing port
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if gw_port and gw_port['network_id'] != network_id:
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with context.session.begin(subtransactions=True):
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router.update({'gw_port_id': None})
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context.session.add(router)
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self.delete_port(context.elevated(), gw_port['id'],
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l3_port_check=False)
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if network_id is not None and (gw_port is None or
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gw_port['network_id'] != network_id):
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# Port has no 'tenant-id', as it is hidden from user
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gw_port = self.create_port(context.elevated(), {
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'port':
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{'tenant_id': '', # intentionally not set
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'network_id': network_id,
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'mac_address': attributes.ATTR_NOT_SPECIFIED,
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'fixed_ips': attributes.ATTR_NOT_SPECIFIED,
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'device_id': router_id,
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'device_owner': DEVICE_OWNER_ROUTER_GW,
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'admin_state_up': True,
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'name': ''}})
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if not len(gw_port['fixed_ips']):
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self.delete_port(context.elevated(), gw_port['id'],
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l3_port_check=False)
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msg = ('No IPs available for external network %s' %
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network_id)
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raise q_exc.BadRequest(resource='router', msg=msg)
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with context.session.begin(subtransactions=True):
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router.update({'gw_port_id': gw_port['id']})
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context.session.add(router)
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def delete_router(self, context, id):
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with context.session.begin(subtransactions=True):
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router = self._get_router(context, id)
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device_filter = {'device_id': [id],
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'device_owner': [DEVICE_OWNER_ROUTER_INTF]}
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ports = self.get_ports(context, filters=device_filter)
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if ports:
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raise l3.RouterInUse(router_id=id)
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# delete any gw port
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device_filter = {'device_id': [id],
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'device_owner': [DEVICE_OWNER_ROUTER_GW]}
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ports = self.get_ports(context.elevated(), filters=device_filter)
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if ports:
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self._delete_port(context.elevated(), ports[0]['id'])
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context.session.delete(router)
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def get_router(self, context, id, fields=None):
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router = self._get_router(context, id)
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return self._make_router_dict(router, fields)
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def get_routers(self, context, filters=None, fields=None):
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return self._get_collection(context, Router,
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self._make_router_dict,
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filters=filters, fields=fields)
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def _check_for_dup_router_subnet(self, context, router_id,
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network_id, subnet_id):
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try:
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rport_qry = context.session.query(models_v2.Port)
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rports = rport_qry.filter_by(
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device_id=router_id,
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device_owner=DEVICE_OWNER_ROUTER_INTF,).all()
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# its possible these ports on on the same network, but
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# different subnet
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new_cidr = self._get_subnet(context, subnet_id)['cidr']
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new_ipnet = netaddr.IPNetwork(new_cidr)
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for p in rports:
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for ip in p['fixed_ips']:
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if ip['subnet_id'] == subnet_id:
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msg = ("Router already has a port on subnet %s"
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% subnet_id)
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raise q_exc.BadRequest(resource='router', msg=msg)
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cidr = self._get_subnet(context, ip['subnet_id'])['cidr']
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ipnet = netaddr.IPNetwork(cidr)
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match1 = netaddr.all_matching_cidrs(new_ipnet, [cidr])
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match2 = netaddr.all_matching_cidrs(ipnet, [new_cidr])
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if match1 or match2:
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msg = (("Cidr %s of subnet %s is overlapped "
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+ "with cidr %s of subnet %s")
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% (new_cidr, subnet_id, cidr, ip['subnet_id']))
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raise q_exc.BadRequest(resource='router', msg=msg)
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except exc.NoResultFound:
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pass
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def add_router_interface(self, context, router_id, interface_info):
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# make sure router exists
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router = self._get_router(context, router_id)
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if not interface_info:
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msg = "Either subnet_id or port_id must be specified"
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raise q_exc.BadRequest(resource='router', msg=msg)
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try:
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policy.enforce(context,
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"extension:router:add_router_interface",
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self._make_router_dict(router))
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except q_exc.PolicyNotAuthorized:
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raise l3.RouterNotFound(router_id=router_id)
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if 'port_id' in interface_info:
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if 'subnet_id' in interface_info:
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msg = "cannot specify both subnet-id and port-id"
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raise q_exc.BadRequest(resource='router', msg=msg)
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port = self._get_port(context, interface_info['port_id'])
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if port['device_id']:
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raise q_exc.PortInUse(net_id=port['network_id'],
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port_id=port['id'],
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device_id=port['device_id'])
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fixed_ips = [ip for ip in port['fixed_ips']]
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if len(fixed_ips) != 1:
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msg = 'Router port must have exactly one fixed IP'
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raise q_exc.BadRequest(resource='router', msg=msg)
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self._check_for_dup_router_subnet(context, router_id,
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port['network_id'],
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fixed_ips[0]['subnet_id'])
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with context.session.begin(subtransactions=True):
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port.update({'device_id': router_id,
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'device_owner': DEVICE_OWNER_ROUTER_INTF})
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elif 'subnet_id' in interface_info:
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subnet_id = interface_info['subnet_id']
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subnet = self._get_subnet(context, subnet_id)
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# Ensure the subnet has a gateway
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if not subnet['gateway_ip']:
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msg = 'Subnet for router interface must have a gateway IP'
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raise q_exc.BadRequest(resource='router', msg=msg)
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self._check_for_dup_router_subnet(context, router_id,
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subnet['network_id'], subnet_id)
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fixed_ip = {'ip_address': subnet['gateway_ip'],
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'subnet_id': subnet['id']}
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port = self.create_port(context, {
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'port':
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{'tenant_id': subnet['tenant_id'],
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'network_id': subnet['network_id'],
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'fixed_ips': [fixed_ip],
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'mac_address': attributes.ATTR_NOT_SPECIFIED,
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'admin_state_up': True,
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'device_id': router_id,
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'device_owner': DEVICE_OWNER_ROUTER_INTF,
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'name': ''}})
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return {'port_id': port['id'],
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'subnet_id': port['fixed_ips'][0]['subnet_id']}
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def remove_router_interface(self, context, router_id, interface_info):
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# make sure router exists
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router = self._get_router(context, router_id)
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try:
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policy.enforce(context,
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"extension:router:remove_router_interface",
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self._make_router_dict(router))
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except q_exc.PolicyNotAuthorized:
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raise l3.RouterNotFound(router_id=router_id)
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if not interface_info:
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msg = "Either subnet_id or port_id must be specified"
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raise q_exc.BadRequest(resource='router', msg=msg)
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if 'port_id' in interface_info:
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port_id = interface_info['port_id']
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port_db = self._get_port(context, port_id)
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if not (port_db['device_owner'] == DEVICE_OWNER_ROUTER_INTF and
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port_db['device_id'] == router_id):
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raise w_exc.HTTPNotFound("Router %(router_id)s does not have "
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" an interface with id %(port_id)s"
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% locals())
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if 'subnet_id' in interface_info:
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port_subnet_id = port_db['fixed_ips'][0]['subnet_id']
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if port_subnet_id != interface_info['subnet_id']:
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raise w_exc.HTTPConflict("subnet_id %s on port does not "
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"match requested one (%s)"
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% (port_subnet_id,
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interface_info['subnet_id']))
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if port_db['device_id'] != router_id:
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raise w_exc.HTTPConflict("port_id %s not used by router" %
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port_db['id'])
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self.delete_port(context, port_db['id'], l3_port_check=False)
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elif 'subnet_id' in interface_info:
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subnet_id = interface_info['subnet_id']
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subnet = self._get_subnet(context, subnet_id)
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found = False
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try:
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rport_qry = context.session.query(models_v2.Port)
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ports = rport_qry.filter_by(
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device_id=router_id,
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device_owner=DEVICE_OWNER_ROUTER_INTF,
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network_id=subnet['network_id']).all()
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for p in ports:
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if p['fixed_ips'][0]['subnet_id'] == subnet_id:
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self.delete_port(context, p['id'], l3_port_check=False)
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found = True
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break
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except exc.NoResultFound:
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pass
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if not found:
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raise w_exc.HTTPNotFound("Router %(router_id)s has no "
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"interface on subnet %(subnet_id)s"
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% locals())
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def _get_floatingip(self, context, id):
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try:
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floatingip = self._get_by_id(context, FloatingIP, id)
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except exc.NoResultFound:
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raise l3.FloatingIPNotFound(floatingip_id=id)
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except exc.MultipleResultsFound:
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LOG.error('Multiple floating ips match for %s' % id)
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raise l3.FloatingIPNotFound(floatingip_id=id)
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return floatingip
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def _make_floatingip_dict(self, floatingip, fields=None):
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res = {'id': floatingip['id'],
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'tenant_id': floatingip['tenant_id'],
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'floating_ip_address': floatingip['floating_ip_address'],
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'floating_network_id': floatingip['floating_network_id'],
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'router_id': floatingip['router_id'],
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'port_id': floatingip['fixed_port_id'],
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'fixed_ip_address': floatingip['fixed_ip_address']}
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return self._fields(res, fields)
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def _get_router_for_internal_subnet(self, context, internal_port,
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internal_subnet_id):
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subnet_db = self._get_subnet(context, internal_subnet_id)
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if not subnet_db['gateway_ip']:
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msg = ('Cannot add floating IP to port on subnet %s '
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'which has no gateway_ip' % internal_subnet_id)
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raise q_exc.BadRequest(resource='floatingip', msg=msg)
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#FIXME(danwent): can do join, but cannot use standard F-K syntax?
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# just do it inefficiently for now
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port_qry = context.session.query(models_v2.Port)
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ports = port_qry.filter_by(network_id=internal_port['network_id'])
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for p in ports:
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ips = [ip['ip_address'] for ip in p['fixed_ips']]
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if len(ips) != 1:
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continue
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fixed = p['fixed_ips'][0]
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if (fixed['ip_address'] == subnet_db['gateway_ip'] and
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fixed['subnet_id'] == internal_subnet_id):
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router_qry = context.session.query(Router)
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try:
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router = router_qry.filter_by(id=p['device_id']).one()
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return router['id']
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except exc.NoResultFound:
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pass
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raise l3.ExternalGatewayForFloatingIPNotFound(
|
|
subnet_id=internal_subnet_id,
|
|
port_id=internal_port['id'])
|
|
|
|
def get_assoc_data(self, context, fip, floating_network_id):
|
|
"""When a floating IP is associated with an internal port,
|
|
we need to extract/determine some data associated with the
|
|
internal port, including the internal_ip_address, and router_id.
|
|
We also need to confirm that this internal port is owned by the
|
|
tenant who owns the floating IP.
|
|
"""
|
|
internal_port = self._get_port(context, fip['port_id'])
|
|
if not internal_port['tenant_id'] == fip['tenant_id']:
|
|
port_id = fip['port_id']
|
|
if 'id' in fip:
|
|
floatingip_id = fip['id']
|
|
msg = _('Port %(port_id)s is associated with a different '
|
|
'tenant than Floating IP %(floatingip_id)s and '
|
|
'therefore cannot be bound.')
|
|
else:
|
|
msg = _('Cannnot create floating IP and bind it to '
|
|
'Port %(port_id)s, since that port is owned by a '
|
|
'different tenant.')
|
|
raise q_exc.BadRequest(resource='floatingip', msg=msg % locals())
|
|
|
|
internal_subnet_id = None
|
|
if 'fixed_ip_address' in fip and fip['fixed_ip_address']:
|
|
internal_ip_address = fip['fixed_ip_address']
|
|
for ip in internal_port['fixed_ips']:
|
|
if ip['ip_address'] == internal_ip_address:
|
|
internal_subnet_id = ip['subnet_id']
|
|
if not internal_subnet_id:
|
|
msg = ('Port %s does not have fixed ip %s' %
|
|
(internal_port['id'], internal_ip_address))
|
|
raise q_exc.BadRequest(resource='floatingip', msg=msg)
|
|
else:
|
|
ips = [ip['ip_address'] for ip in internal_port['fixed_ips']]
|
|
if len(ips) == 0:
|
|
msg = ('Cannot add floating IP to port %s that has'
|
|
'no fixed IP addresses' % internal_port['id'])
|
|
raise q_exc.BadRequest(resource='floatingip', msg=msg)
|
|
if len(ips) > 1:
|
|
msg = ('Port %s has multiple fixed IPs. Must provide'
|
|
' a specific IP when assigning a floating IP' %
|
|
internal_port['id'])
|
|
raise q_exc.BadRequest(resource='floatingip', msg=msg)
|
|
internal_ip_address = internal_port['fixed_ips'][0]['ip_address']
|
|
internal_subnet_id = internal_port['fixed_ips'][0]['subnet_id']
|
|
|
|
router_id = self._get_router_for_internal_subnet(context,
|
|
internal_port,
|
|
internal_subnet_id)
|
|
# confirm that this router has a floating
|
|
# ip enabled gateway with support for this floating IP network
|
|
try:
|
|
port_qry = context.elevated().session.query(models_v2.Port)
|
|
ports = port_qry.filter_by(
|
|
network_id=floating_network_id,
|
|
device_id=router_id,
|
|
device_owner=DEVICE_OWNER_ROUTER_GW).one()
|
|
except exc.NoResultFound:
|
|
raise l3.ExternalGatewayForFloatingIPNotFound(
|
|
subnet_id=internal_subnet_id,
|
|
port_id=internal_port['id'])
|
|
|
|
return (fip['port_id'], internal_ip_address, router_id)
|
|
|
|
def _update_fip_assoc(self, context, fip, floatingip_db, external_port):
|
|
port_id = internal_ip_address = router_id = None
|
|
if (('fixed_ip_address' in fip and fip['fixed_ip_address']) and
|
|
not ('port_id' in fip and fip['port_id'])):
|
|
msg = "fixed_ip_address cannot be specified without a port_id"
|
|
raise q_exc.BadRequest(resource='floatingip', msg=msg)
|
|
if 'port_id' in fip and fip['port_id']:
|
|
port_qry = context.session.query(FloatingIP)
|
|
try:
|
|
port_qry.filter_by(fixed_port_id=fip['port_id']).one()
|
|
raise l3.FloatingIPPortAlreadyAssociated(
|
|
port_id=fip['port_id'])
|
|
except exc.NoResultFound:
|
|
pass
|
|
port_id, internal_ip_address, router_id = self.get_assoc_data(
|
|
context,
|
|
fip,
|
|
floatingip_db['floating_network_id'])
|
|
floatingip_db.update({'fixed_ip_address': internal_ip_address,
|
|
'fixed_port_id': port_id,
|
|
'router_id': router_id})
|
|
|
|
def create_floatingip(self, context, floatingip):
|
|
fip = floatingip['floatingip']
|
|
tenant_id = self._get_tenant_id_for_create(context, fip)
|
|
fip_id = utils.str_uuid()
|
|
|
|
f_net_id = fip['floating_network_id']
|
|
if not self._network_is_external(context, f_net_id):
|
|
msg = "Network %s is not a valid external network" % f_net_id
|
|
raise q_exc.BadRequest(resource='floatingip', msg=msg)
|
|
|
|
# This external port is never exposed to the tenant.
|
|
# it is used purely for internal system and admin use when
|
|
# managing floating IPs.
|
|
external_port = self.create_port(context.elevated(), {
|
|
'port':
|
|
{'tenant_id': '', # tenant intentionally not set
|
|
'network_id': f_net_id,
|
|
'mac_address': attributes.ATTR_NOT_SPECIFIED,
|
|
'fixed_ips': attributes.ATTR_NOT_SPECIFIED,
|
|
'admin_state_up': True,
|
|
'device_id': fip_id,
|
|
'device_owner': DEVICE_OWNER_FLOATINGIP,
|
|
'name': ''}})
|
|
# Ensure IP addresses are allocated on external port
|
|
if not external_port['fixed_ips']:
|
|
msg = "Unable to find any IP address on external network"
|
|
# remove the external port
|
|
self.delete_port(context.elevated(), external_port['id'],
|
|
l3_port_check=False)
|
|
raise q_exc.BadRequest(resource='floatingip', msg=msg)
|
|
|
|
floating_ip_address = external_port['fixed_ips'][0]['ip_address']
|
|
try:
|
|
with context.session.begin(subtransactions=True):
|
|
floatingip_db = FloatingIP(
|
|
id=fip_id,
|
|
tenant_id=tenant_id,
|
|
floating_network_id=fip['floating_network_id'],
|
|
floating_ip_address=floating_ip_address,
|
|
floating_port_id=external_port['id'])
|
|
fip['tenant_id'] = tenant_id
|
|
# Update association with internal port
|
|
# and define external IP address
|
|
self._update_fip_assoc(context, fip,
|
|
floatingip_db, external_port)
|
|
context.session.add(floatingip_db)
|
|
# TODO(salvatore-orlando): Avoid broad catch
|
|
# Maybe by introducing base class for L3 exceptions
|
|
except q_exc.BadRequest:
|
|
LOG.exception("Unable to create Floating ip due to a "
|
|
"malformed request")
|
|
raise
|
|
except Exception:
|
|
LOG.exception("Floating IP association failed")
|
|
# Remove the port created for internal purposes
|
|
self.delete_port(context.elevated(), external_port['id'],
|
|
l3_port_check=False)
|
|
raise
|
|
|
|
return self._make_floatingip_dict(floatingip_db)
|
|
|
|
def update_floatingip(self, context, id, floatingip):
|
|
fip = floatingip['floatingip']
|
|
with context.session.begin(subtransactions=True):
|
|
floatingip_db = self._get_floatingip(context, id)
|
|
fip['tenant_id'] = floatingip_db['tenant_id']
|
|
fip['id'] = id
|
|
fip_port_id = floatingip_db['floating_port_id']
|
|
self._update_fip_assoc(context, fip, floatingip_db,
|
|
self.get_port(context.elevated(),
|
|
fip_port_id))
|
|
return self._make_floatingip_dict(floatingip_db)
|
|
|
|
def delete_floatingip(self, context, id):
|
|
floatingip = self._get_floatingip(context, id)
|
|
with context.session.begin(subtransactions=True):
|
|
context.session.delete(floatingip)
|
|
self.delete_port(context.elevated(),
|
|
floatingip['floating_port_id'],
|
|
l3_port_check=False)
|
|
|
|
def get_floatingip(self, context, id, fields=None):
|
|
floatingip = self._get_floatingip(context, id)
|
|
return self._make_floatingip_dict(floatingip, fields)
|
|
|
|
def get_floatingips(self, context, filters=None, fields=None):
|
|
return self._get_collection(context, FloatingIP,
|
|
self._make_floatingip_dict,
|
|
filters=filters, fields=fields)
|
|
|
|
def prevent_l3_port_deletion(self, context, port_id):
|
|
""" Checks to make sure a port is allowed to be deleted, raising
|
|
an exception if this is not the case. This should be called by
|
|
any plugin when the API requests the deletion of a port, since
|
|
some ports for L3 are not intended to be deleted directly via a
|
|
DELETE to /ports, but rather via other API calls that perform the
|
|
proper deletion checks.
|
|
"""
|
|
port_db = self._get_port(context, port_id)
|
|
if port_db['device_owner'] in [DEVICE_OWNER_ROUTER_INTF,
|
|
DEVICE_OWNER_ROUTER_GW,
|
|
DEVICE_OWNER_FLOATINGIP]:
|
|
raise l3.L3PortInUse(port_id=port_id,
|
|
device_owner=port_db['device_owner'])
|
|
|
|
def disassociate_floatingips(self, context, port_id):
|
|
with context.session.begin(subtransactions=True):
|
|
try:
|
|
fip_qry = context.session.query(FloatingIP)
|
|
floating_ip = fip_qry.filter_by(fixed_port_id=port_id).one()
|
|
floating_ip.update({'fixed_port_id': None,
|
|
'fixed_ip_address': None,
|
|
'router_id': None})
|
|
except exc.NoResultFound:
|
|
return
|
|
except exc.MultipleResultsFound:
|
|
# should never happen
|
|
raise Exception('Multiple floating IPs found for port %s'
|
|
% port_id)
|
|
|
|
def _check_l3_view_auth(self, context, network):
|
|
return policy.check(context,
|
|
"extension:router:view",
|
|
network)
|
|
|
|
def _enforce_l3_set_auth(self, context, network):
|
|
return policy.enforce(context,
|
|
"extension:router:set",
|
|
network)
|
|
|
|
def _network_is_external(self, context, net_id):
|
|
try:
|
|
context.session.query(ExternalNetwork).filter_by(
|
|
network_id=net_id).one()
|
|
return True
|
|
except exc.NoResultFound:
|
|
return False
|
|
|
|
def _extend_network_dict_l3(self, context, network):
|
|
if self._check_l3_view_auth(context, network):
|
|
network[l3.EXTERNAL] = self._network_is_external(
|
|
context, network['id'])
|
|
|
|
def _process_l3_create(self, context, net_data, net_id):
|
|
external = net_data.get(l3.EXTERNAL)
|
|
external_set = attributes.is_attr_set(external)
|
|
|
|
if not external_set:
|
|
return
|
|
|
|
self._enforce_l3_set_auth(context, net_data)
|
|
|
|
if external:
|
|
# expects to be called within a plugin's session
|
|
context.session.add(ExternalNetwork(network_id=net_id))
|
|
|
|
def _process_l3_update(self, context, net_data, net_id):
|
|
|
|
new_value = net_data.get(l3.EXTERNAL)
|
|
if not attributes.is_attr_set(new_value):
|
|
return
|
|
|
|
self._enforce_l3_set_auth(context, net_data)
|
|
existing_value = self._network_is_external(context, net_id)
|
|
|
|
if existing_value == new_value:
|
|
return
|
|
|
|
if new_value:
|
|
context.session.add(ExternalNetwork(network_id=net_id))
|
|
else:
|
|
# must make sure we do not have any external gateway ports
|
|
# (and thus, possible floating IPs) on this network before
|
|
# allow it to be update to external=False
|
|
try:
|
|
context.session.query(models_v2.Port).filter_by(
|
|
device_owner=DEVICE_OWNER_ROUTER_GW,
|
|
network_id=net_id).first()
|
|
raise l3.ExternalNetworkInUse(net_id=net_id)
|
|
except exc.NoResultFound:
|
|
pass # expected
|
|
|
|
context.session.query(ExternalNetwork).filter_by(
|
|
network_id=net_id).delete()
|
|
|
|
def _filter_nets_l3(self, context, nets, filters):
|
|
vals = filters.get('router:external', [])
|
|
if not vals:
|
|
return nets
|
|
|
|
ext_nets = set([en['network_id'] for en in
|
|
context.session.query(ExternalNetwork).all()])
|
|
if vals[0]:
|
|
return [n for n in nets if n['id'] in ext_nets]
|
|
else:
|
|
return [n for n in nets if n['id'] not in ext_nets]
|