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# Copyright (c) 2013 NEC Corporation
# 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 os
import platform
import random
import time
from debtcollector import removals
import netaddr
from neutron_lib.utils import helpers
from neutron_lib.utils import net
class UnorderedList(list):
"""A list that is equals to any permutation of itself."""
def __eq__(self, other):
if not isinstance(other, list):
return False
return (sorted(self, key=helpers.safe_sort_key) ==
sorted(other, key=helpers.safe_sort_key))
def __neq__(self, other):
return not self == other
@removals.remove
def is_bsd():
"""Return True on BSD-based systems."""
system = platform.system()
if system == 'Darwin':
return True
if 'bsd' in system.lower():
return True
return False
def get_random_cidr(version=4):
if version == 4:
return '10.%d.%d.0/%d' % (random.randint(3, 254),
random.randint(3, 254),
24)
return '2001:db8:%x::/%d' % (random.getrandbits(16), 64)
def reset_random_seed():
# reset random seed to make sure other processes extracting values from RNG
# don't get the same results (useful especially when you then use the
# random values to allocate system resources from global pool, like ports
# to listen). Use both current time and pid to make sure no tests started
# at the same time get the same values from RNG
seed = time.time() + os.getpid()
random.seed(seed)
def get_random_EUI():
return netaddr.EUI(
net.get_random_mac(['fe', '16', '3e', '00', '00', '00'])
)
def get_random_ip_network(version=4):
return netaddr.IPNetwork(get_random_cidr(version=version))
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