278 lines
9.6 KiB
Python
278 lines
9.6 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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# Copyright 2012 Nicira Networks, Inc.
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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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#
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# @author: Dan Wendlandt, Nicira, Inc
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#
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from abc import abstractmethod
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from oslo.config import cfg
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from neutron.api import extensions
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from neutron.api.v2 import attributes as attr
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from neutron.api.v2 import base
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from neutron.common import exceptions as qexception
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from neutron import manager
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from neutron.plugins.common import constants
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from neutron import quota
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# L3 Exceptions
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class RouterNotFound(qexception.NotFound):
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message = _("Router %(router_id)s could not be found")
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class RouterInUse(qexception.InUse):
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message = _("Router %(router_id)s still has active ports")
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class RouterInterfaceNotFound(qexception.NotFound):
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message = _("Router %(router_id)s does not have "
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"an interface with id %(port_id)s")
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class RouterInterfaceNotFoundForSubnet(qexception.NotFound):
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message = _("Router %(router_id)s has no interface "
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"on subnet %(subnet_id)s")
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class RouterInterfaceInUseByFloatingIP(qexception.InUse):
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message = _("Router interface for subnet %(subnet_id)s on router "
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"%(router_id)s cannot be deleted, as it is required "
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"by one or more floating IPs.")
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class FloatingIPNotFound(qexception.NotFound):
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message = _("Floating IP %(floatingip_id)s could not be found")
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class ExternalGatewayForFloatingIPNotFound(qexception.NotFound):
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message = _("External network %(external_network_id)s is not reachable "
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"from subnet %(subnet_id)s. Therefore, cannot associate "
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"Port %(port_id)s with a Floating IP.")
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class FloatingIPPortAlreadyAssociated(qexception.InUse):
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message = _("Cannot associate floating IP %(floating_ip_address)s "
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"(%(fip_id)s) with port %(port_id)s "
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"using fixed IP %(fixed_ip)s, as that fixed IP already "
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"has a floating IP on external network %(net_id)s.")
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class L3PortInUse(qexception.InUse):
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message = _("Port %(port_id)s has owner %(device_owner)s and therefore"
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" cannot be deleted directly via the port API.")
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class RouterExternalGatewayInUseByFloatingIp(qexception.InUse):
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message = _("Gateway cannot be updated for router %(router_id)s, since a "
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"gateway to external network %(net_id)s is required by one or "
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"more floating IPs.")
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ROUTERS = 'routers'
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EXTERNAL_GW_INFO = 'external_gateway_info'
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RESOURCE_ATTRIBUTE_MAP = {
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ROUTERS: {
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'id': {'allow_post': False, 'allow_put': False,
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'validate': {'type:uuid': None},
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'is_visible': True,
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'primary_key': True},
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'name': {'allow_post': True, 'allow_put': True,
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'validate': {'type:string': None},
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'is_visible': True, 'default': ''},
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'admin_state_up': {'allow_post': True, 'allow_put': True,
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'default': True,
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'convert_to': attr.convert_to_boolean,
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'is_visible': True},
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'status': {'allow_post': False, 'allow_put': False,
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'is_visible': True},
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'tenant_id': {'allow_post': True, 'allow_put': False,
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'required_by_policy': True,
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'validate': {'type:string': None},
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'is_visible': True},
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EXTERNAL_GW_INFO: {'allow_post': True, 'allow_put': True,
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'is_visible': True, 'default': None,
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'enforce_policy': True}
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},
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'floatingips': {
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'id': {'allow_post': False, 'allow_put': False,
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'validate': {'type:uuid': None},
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'is_visible': True,
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'primary_key': True},
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'floating_ip_address': {'allow_post': False, 'allow_put': False,
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'validate': {'type:ip_address_or_none': None},
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'is_visible': True},
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'floating_network_id': {'allow_post': True, 'allow_put': False,
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'validate': {'type:uuid': None},
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'is_visible': True},
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'router_id': {'allow_post': False, 'allow_put': False,
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'validate': {'type:uuid_or_none': None},
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'is_visible': True, 'default': None},
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'port_id': {'allow_post': True, 'allow_put': True,
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'validate': {'type:uuid_or_none': None},
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'is_visible': True, 'default': None},
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'fixed_ip_address': {'allow_post': True, 'allow_put': True,
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'validate': {'type:ip_address_or_none': None},
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'is_visible': True, 'default': None},
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'tenant_id': {'allow_post': True, 'allow_put': False,
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'required_by_policy': True,
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'validate': {'type:string': None},
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'is_visible': True}
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},
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}
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l3_quota_opts = [
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cfg.IntOpt('quota_router',
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default=10,
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help=_('Number of routers allowed per tenant, -1 for '
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'unlimited')),
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cfg.IntOpt('quota_floatingip',
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default=50,
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help=_('Number of floating IPs allowed per tenant, '
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'-1 for unlimited')),
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]
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cfg.CONF.register_opts(l3_quota_opts, 'QUOTAS')
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class L3(extensions.ExtensionDescriptor):
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@classmethod
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def get_name(cls):
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return "Neutron L3 Router"
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@classmethod
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def get_alias(cls):
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return "router"
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@classmethod
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def get_description(cls):
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return ("Router abstraction for basic L3 forwarding"
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" between L2 Neutron networks and access to external"
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" networks via a NAT gateway.")
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@classmethod
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def get_namespace(cls):
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return "http://docs.openstack.org/ext/neutron/router/api/v1.0"
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@classmethod
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def get_updated(cls):
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return "2012-07-20T10:00:00-00:00"
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@classmethod
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def get_resources(cls):
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"""Returns Ext Resources."""
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my_plurals = [(key, key[:-1]) for key in RESOURCE_ATTRIBUTE_MAP.keys()]
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attr.PLURALS.update(dict(my_plurals))
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exts = []
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plugin = manager.NeutronManager.get_service_plugins()[
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constants.L3_ROUTER_NAT]
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for resource_name in ['router', 'floatingip']:
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collection_name = resource_name + "s"
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params = RESOURCE_ATTRIBUTE_MAP.get(collection_name, dict())
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member_actions = {}
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if resource_name == 'router':
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member_actions = {'add_router_interface': 'PUT',
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'remove_router_interface': 'PUT'}
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quota.QUOTAS.register_resource_by_name(resource_name)
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controller = base.create_resource(
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collection_name, resource_name, plugin, params,
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member_actions=member_actions,
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allow_pagination=cfg.CONF.allow_pagination,
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allow_sorting=cfg.CONF.allow_sorting)
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ex = extensions.ResourceExtension(collection_name,
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controller,
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member_actions=member_actions,
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attr_map=params)
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exts.append(ex)
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return exts
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def update_attributes_map(self, attributes):
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super(L3, self).update_attributes_map(
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attributes, extension_attrs_map=RESOURCE_ATTRIBUTE_MAP)
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def get_extended_resources(self, version):
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if version == "2.0":
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return RESOURCE_ATTRIBUTE_MAP
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else:
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return {}
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class RouterPluginBase(object):
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@abstractmethod
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def create_router(self, context, router):
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pass
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@abstractmethod
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def update_router(self, context, id, router):
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pass
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@abstractmethod
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def get_router(self, context, id, fields=None):
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pass
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@abstractmethod
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def delete_router(self, context, id):
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pass
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@abstractmethod
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def get_routers(self, context, filters=None, fields=None,
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sorts=None, limit=None, marker=None, page_reverse=False):
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pass
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@abstractmethod
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def add_router_interface(self, context, router_id, interface_info):
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pass
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@abstractmethod
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def remove_router_interface(self, context, router_id, interface_info):
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pass
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@abstractmethod
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def create_floatingip(self, context, floatingip):
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pass
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@abstractmethod
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def update_floatingip(self, context, id, floatingip):
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pass
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@abstractmethod
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def get_floatingip(self, context, id, fields=None):
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pass
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@abstractmethod
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def delete_floatingip(self, context, id):
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pass
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@abstractmethod
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def get_floatingips(self, context, filters=None, fields=None,
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sorts=None, limit=None, marker=None,
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page_reverse=False):
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pass
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def get_routers_count(self, context, filters=None):
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raise qexception.NotImplementedError()
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def get_floatingips_count(self, context, filters=None):
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raise qexception.NotImplementedError()
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