Dynamic routing services for OpenStack Neutron.
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# Copyright 2016 Huawei Technologies India Pvt. Ltd.
#
# 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 netaddr
from neutron_lib import constants as lib_consts
from neutron_dynamic_routing.services.bgp.agent.driver import exceptions as bgp_driver_exc # noqa
from neutron_dynamic_routing.services.bgp.common import constants as bgp_consts # noqa
# Parameter validation functions provided are provided by the base.
def validate_as_num(param, as_num):
if not isinstance(as_num, int):
raise bgp_driver_exc.InvalidParamType(param=param,
param_type='integer')
if not (bgp_consts.MIN_ASNUM <= as_num <= bgp_consts.MAX_4BYTE_ASNUM):
# Must be in [AS_NUM_MIN, MAX_4BYTE_ASNUM] range.
allowed_range = ('[' +
str(bgp_consts.MIN_ASNUM) + '-' +
str(bgp_consts.MAX_4BYTE_ASNUM) +
']')
raise bgp_driver_exc.InvalidParamRange(param=param,
range=allowed_range)
def validate_auth(auth_type, password):
validate_string(password)
if auth_type in bgp_consts.SUPPORTED_AUTH_TYPES:
if auth_type != 'none' and password is None:
raise bgp_driver_exc.PasswordNotSpecified(auth_type=auth_type)
if auth_type == 'none' and password is not None:
raise bgp_driver_exc.InvaildAuthType(auth_type=auth_type)
else:
raise bgp_driver_exc.InvaildAuthType(auth_type=auth_type)
def validate_ip_addr(ip_addr):
if netaddr.valid_ipv4(ip_addr):
return lib_consts.IP_VERSION_4
elif netaddr.valid_ipv6(ip_addr):
return lib_consts.IP_VERSION_6
else:
raise bgp_driver_exc.InvalidParamType(param=ip_addr,
param_type='ip-address')
def validate_string(param):
if param is not None:
if not isinstance(param, str):
raise bgp_driver_exc.InvalidParamType(param=param,
param_type='string')
class BgpMultiSpeakerCache(object):
"""Class for saving multiple BGP speakers information.
Version history:
1.0 - Initial version for caching multiple BGP speaker information.
"""
def __init__(self):
self.cache = {}
def get_hosted_bgp_speakers_count(self):
return len(self.cache)
def put_bgp_speaker(self, local_as, speaker):
self.cache[local_as] = speaker
def get_bgp_speaker(self, local_as):
return self.cache.get(local_as)
def remove_bgp_speaker(self, local_as):
self.cache.pop(local_as, None)