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# Copyright 2012 VMware, Inc.
# All rights reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import abc
from oslo.config import cfg
from neutron.api import extensions
from neutron.api.v2 import attributes as attr
from neutron.api.v2 import resource_helper
from neutron.common import exceptions as qexception
from neutron.plugins.common import constants
# L3 Exceptions
class RouterNotFound(qexception.NotFound):
message = _("Router %(router_id)s could not be found")
class RouterInUse(qexception.InUse):
message = _("Router %(router_id)s still has ports")
class RouterInterfaceNotFound(qexception.NotFound):
message = _("Router %(router_id)s does not have "
"an interface with id %(port_id)s")
class RouterInterfaceNotFoundForSubnet(qexception.NotFound):
message = _("Router %(router_id)s has no interface "
"on subnet %(subnet_id)s")
class RouterInterfaceInUseByFloatingIP(qexception.InUse):
message = _("Router interface for subnet %(subnet_id)s on router "
"%(router_id)s cannot be deleted, as it is required "
"by one or more floating IPs.")
class FloatingIPNotFound(qexception.NotFound):
message = _("Floating IP %(floatingip_id)s could not be found")
class ExternalGatewayForFloatingIPNotFound(qexception.NotFound):
message = _("External network %(external_network_id)s is not reachable "
"from subnet %(subnet_id)s. Therefore, cannot associate "
"Port %(port_id)s with a Floating IP.")
class FloatingIPPortAlreadyAssociated(qexception.InUse):
message = _("Cannot associate floating IP %(floating_ip_address)s "
"(%(fip_id)s) with port %(port_id)s "
"using fixed IP %(fixed_ip)s, as that fixed IP already "
"has a floating IP on external network %(net_id)s.")
class L3PortInUse(qexception.InUse):
message = _("Port %(port_id)s has owner %(device_owner)s and therefore"
" cannot be deleted directly via the port API.")
class RouterExternalGatewayInUseByFloatingIp(qexception.InUse):
message = _("Gateway cannot be updated for router %(router_id)s, since a "
"gateway to external network %(net_id)s is required by one or "
"more floating IPs.")
ROUTERS = 'routers'
EXTERNAL_GW_INFO = 'external_gateway_info'
RESOURCE_ATTRIBUTE_MAP = {
ROUTERS: {
'id': {'allow_post': False, 'allow_put': False,
'validate': {'type:uuid': None},
'is_visible': True,
'primary_key': True},
'name': {'allow_post': True, 'allow_put': True,
'validate': {'type:string': None},
'is_visible': True, 'default': ''},
'admin_state_up': {'allow_post': True, 'allow_put': True,
'default': True,
'convert_to': attr.convert_to_boolean,
'is_visible': True},
'status': {'allow_post': False, 'allow_put': False,
'is_visible': True},
'tenant_id': {'allow_post': True, 'allow_put': False,
'required_by_policy': True,
'validate': {'type:string': None},
'is_visible': True},
EXTERNAL_GW_INFO: {'allow_post': True, 'allow_put': True,
'is_visible': True, 'default': None,
'enforce_policy': True,
'validate': {
'type:dict_or_nodata': {
'network_id': {'type:uuid': None,
'required': True},
'external_fixed_ips': {
'convert_list_to':
attr.convert_kvp_list_to_dict,
'type:fixed_ips': None,
'default': None,
'required': False,
}
}
}}
},
'floatingips': {
'id': {'allow_post': False, 'allow_put': False,
'validate': {'type:uuid': None},
'is_visible': True,
'primary_key': True},
'floating_ip_address': {'allow_post': False, 'allow_put': False,
'validate': {'type:ip_address_or_none': None},
'is_visible': True},
'floating_network_id': {'allow_post': True, 'allow_put': False,
'validate': {'type:uuid': None},
'is_visible': True},
'router_id': {'allow_post': False, 'allow_put': False,
'validate': {'type:uuid_or_none': None},
'is_visible': True, 'default': None},
'port_id': {'allow_post': True, 'allow_put': True,
'validate': {'type:uuid_or_none': None},
'is_visible': True, 'default': None,
'required_by_policy': True},
'fixed_ip_address': {'allow_post': True, 'allow_put': True,
'validate': {'type:ip_address_or_none': None},
'is_visible': True, 'default': None},
'tenant_id': {'allow_post': True, 'allow_put': False,
'required_by_policy': True,
'validate': {'type:string': None},
'is_visible': True},
'status': {'allow_post': False, 'allow_put': False,
'is_visible': True},
},
}
l3_quota_opts = [
cfg.IntOpt('quota_router',
default=10,
help=_('Number of routers allowed per tenant. '
'A negative value means unlimited.')),
cfg.IntOpt('quota_floatingip',
default=50,
help=_('Number of floating IPs allowed per tenant. '
'A negative value means unlimited.')),
]
cfg.CONF.register_opts(l3_quota_opts, 'QUOTAS')
class L3(extensions.ExtensionDescriptor):
@classmethod
def get_name(cls):
return "Neutron L3 Router"
@classmethod
def get_alias(cls):
return "router"
@classmethod
def get_description(cls):
return ("Router abstraction for basic L3 forwarding"
" between L2 Neutron networks and access to external"
" networks via a NAT gateway.")
@classmethod
def get_namespace(cls):
return "http://docs.openstack.org/ext/neutron/router/api/v1.0"
@classmethod
def get_updated(cls):
return "2012-07-20T10:00:00-00:00"
@classmethod
def get_resources(cls):
"""Returns Ext Resources."""
plural_mappings = resource_helper.build_plural_mappings(
{}, RESOURCE_ATTRIBUTE_MAP)
plural_mappings['external_fixed_ips'] = 'external_fixed_ip'
attr.PLURALS.update(plural_mappings)
action_map = {'router': {'add_router_interface': 'PUT',
'remove_router_interface': 'PUT'}}
return resource_helper.build_resource_info(plural_mappings,
RESOURCE_ATTRIBUTE_MAP,
constants.L3_ROUTER_NAT,
action_map=action_map,
register_quota=True)
def update_attributes_map(self, attributes):
super(L3, self).update_attributes_map(
attributes, extension_attrs_map=RESOURCE_ATTRIBUTE_MAP)
def get_extended_resources(self, version):
if version == "2.0":
return RESOURCE_ATTRIBUTE_MAP
else:
return {}
class RouterPluginBase(object):
@abc.abstractmethod
def create_router(self, context, router):
pass
@abc.abstractmethod
def update_router(self, context, id, router):
pass
@abc.abstractmethod
def get_router(self, context, id, fields=None):
pass
@abc.abstractmethod
def delete_router(self, context, id):
pass
@abc.abstractmethod
def get_routers(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None, page_reverse=False):
pass
@abc.abstractmethod
def add_router_interface(self, context, router_id, interface_info):
pass
@abc.abstractmethod
def remove_router_interface(self, context, router_id, interface_info):
pass
@abc.abstractmethod
def create_floatingip(self, context, floatingip):
pass
@abc.abstractmethod
def update_floatingip(self, context, id, floatingip):
pass
@abc.abstractmethod
def get_floatingip(self, context, id, fields=None):
pass
@abc.abstractmethod
def delete_floatingip(self, context, id):
pass
@abc.abstractmethod
def get_floatingips(self, context, filters=None, fields=None,
sorts=None, limit=None, marker=None,
page_reverse=False):
pass
def get_routers_count(self, context, filters=None):
raise NotImplementedError()
def get_floatingips_count(self, context, filters=None):
raise NotImplementedError()
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