27 lines
973 B
Python
27 lines
973 B
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.
|
|
|
|
import netaddr
|
|
|
|
|
|
def is_prefix_subset(orig_prefixes, new_prefixes):
|
|
"""Check whether orig_prefixes is subset of new_prefixes.
|
|
|
|
|
|
This takes valid prefix lists for orig_prefixes and new_prefixes,
|
|
returns 'True', if orig_prefixes is subset of new_prefixes.
|
|
"""
|
|
orig_set = netaddr.IPSet(orig_prefixes)
|
|
new_set = netaddr.IPSet(new_prefixes)
|
|
return orig_set.issubset(new_set)
|