neutron-dynamic-routing/neutron_dynamic_routing/extensions/bgp_4byte_asn.py
Hirofumi Ichihara 972756f603 Support 4-Byte AS Numbers
Now neutron_dynamic_routing supports 2 byte AS numbers only.
This patch expands AS numbers constraint so that it supports
4 byte AS numbers. It expects that operators use asplain
notation to set AS numbers[1]. That's backward compatible with
existing 2 byte AS numbers.

[1]: https://tools.ietf.org/html/rfc5396

Change-Id: I06ae0c42d983e88e1f38c501d5c85a7956f195ad
Closes-Bug: #1573092
2017-11-06 09:39:34 +00:00

73 lines
2.3 KiB
Python

# 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.
from neutron_lib.api import extensions as api_extensions
from neutron_dynamic_routing.extensions import bgp as bgp_ext
from neutron_dynamic_routing.services.bgp.common import constants as bgp_consts
BGP_4BYTE_ASN_EXT_ALIAS = 'bgp_4byte_asn'
RESOURCE_ATTRIBUTE_MAP = {
'bgp-speakers': {
'local_as': {'allow_post': True, 'allow_put': False,
'validate': {'type:range': (bgp_consts.MIN_ASNUM,
bgp_consts.MAX_4BYTE_ASNUM)},
'is_visible': True, 'default': None,
'required_by_policy': False,
'enforce_policy': False}
},
'bgp-peers': {
'remote_as': {'allow_post': True, 'allow_put': False,
'validate': {'type:range': (bgp_consts.MIN_ASNUM,
bgp_consts.MAX_4BYTE_ASNUM)},
'is_visible': True, 'default': None,
'required_by_policy': False,
'enforce_policy': False}
}
}
class Bgp_4byte_asn(api_extensions.ExtensionDescriptor):
"""Extension class supporting bgp 4-byte AS numbers.
"""
@classmethod
def get_name(cls):
return "BGP 4-byte AS numbers"
@classmethod
def get_alias(cls):
return BGP_4BYTE_ASN_EXT_ALIAS
@classmethod
def get_description(cls):
return "Support bgp 4-byte AS numbers"
@classmethod
def get_updated(cls):
return "2017-09-07T00:00:00-00:00"
@classmethod
def get_resources(cls):
return []
def get_extended_resources(self, version):
if version == "2.0":
return RESOURCE_ATTRIBUTE_MAP
else:
return {}
def get_required_extensions(self):
return [bgp_ext.BGP_EXT_ALIAS]