OpenStack Networking (Neutron)
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# Copyright (c) 2015 Mirantis, 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 netaddr
from neutron_lib import constants
from neutron.ipam import utils
from neutron.tests import base
class TestIpamUtils(base.BaseTestCase):
def test_check_subnet_ip_v4_network(self):
self.assertFalse(utils.check_subnet_ip('1.1.1.0/24', '1.1.1.0'))
def test_check_subnet_ip_v4_broadcast(self):
self.assertFalse(utils.check_subnet_ip('1.1.1.0/24', '1.1.1.255'))
def test_check_subnet_ip_v4_valid(self):
self.assertTrue(utils.check_subnet_ip('1.1.1.0/24', '1.1.1.1'))
self.assertTrue(utils.check_subnet_ip('1.1.1.0/24', '1.1.1.254'))
def test_check_subnet_ip_v6_owner_router_or_not_defined(self):
for port_owner in (constants.ROUTER_PORT_OWNERS + ('', )):
# IP address == network
self.assertTrue(utils.check_subnet_ip('F111::0/64', 'F111::0',
port_owner=port_owner))
# IP address == broadcast
self.assertTrue(utils.check_subnet_ip(
'F111::0/64', 'F111::FFFF:FFFF:FFFF:FFFF',
port_owner=port_owner))
# IP address in network
self.assertTrue(utils.check_subnet_ip('F111::0/64', 'F111::50',
port_owner=port_owner))
# IP address not in network
self.assertFalse(utils.check_subnet_ip('F111::0/64', 'F112::50',
port_owner=port_owner))
def test_check_subnet_ip_v6_owner_not_router(self):
port_owner = 'nova:compute'
# IP address == network
self.assertFalse(utils.check_subnet_ip('F111::0/64', 'F111::0',
port_owner=port_owner))
# IP address == broadcast
self.assertTrue(utils.check_subnet_ip(
'F111::0/64', 'F111::FFFF:FFFF:FFFF:FFFF',
port_owner=port_owner))
# IP address in network
self.assertTrue(utils.check_subnet_ip('F111::0/64', 'F111::50',
port_owner=port_owner))
# IP address not in network
self.assertFalse(utils.check_subnet_ip('F111::0/64', 'F112::50',
port_owner=port_owner))
def test_generate_pools_v4_nogateway(self):
cidr = '192.168.0.0/24'
expected = [netaddr.IPRange('192.168.0.1', '192.168.0.254')]
self.assertEqual(expected, utils.generate_pools(cidr, None))
def test_generate_pools_v4_gateway_first(self):
cidr = '192.168.0.0/24'
gateway = '192.168.0.1'
expected = [netaddr.IPRange('192.168.0.2', '192.168.0.254')]
self.assertEqual(expected, utils.generate_pools(cidr, gateway))
def test_generate_pools_v4_gateway_last(self):
cidr = '192.168.0.0/24'
gateway = '192.168.0.254'
expected = [netaddr.IPRange('192.168.0.1', '192.168.0.253')]
self.assertEqual(expected, utils.generate_pools(cidr, gateway))
def test_generate_pools_v4_32(self):
# 32 is special because it should have 1 usable address
cidr = '192.168.0.0/32'
expected = [netaddr.IPRange('192.168.0.0', '192.168.0.0')]
self.assertEqual(expected, utils.generate_pools(cidr, None))
def test_generate_pools_v4_31(self):
cidr = '192.168.0.0/31'
expected = [netaddr.IPRange('192.168.0.0', '192.168.0.1')]
self.assertEqual(expected, utils.generate_pools(cidr, None))
def test_generate_pools_v4_gateway_middle(self):
cidr = '192.168.0.0/24'
gateway = '192.168.0.128'
expected = [netaddr.IPRange('192.168.0.1', '192.168.0.127'),
netaddr.IPRange('192.168.0.129', '192.168.0.254')]
self.assertEqual(expected, utils.generate_pools(cidr, gateway))
def test_generate_pools_v6_nogateway(self):
# other than the difference in the last address, the rest of the
# logic is the same as v4 so we only need one test
cidr = 'F111::0/64'
expected = [netaddr.IPRange('F111::1', 'F111::FFFF:FFFF:FFFF:FFFF')]
self.assertEqual(expected, utils.generate_pools(cidr, None))
def test_generate_pools_v6_empty(self):
# We want to be sure the range will begin and end with an IPv6
# address, even if an ambiguous ::/64 cidr is given.
cidr = '::/64'
expected = [netaddr.IPRange('::1', '::FFFF:FFFF:FFFF:FFFF')]
self.assertEqual(expected, utils.generate_pools(cidr, None))
def test_check_gateway_invalid_in_subnet(self):
data = [('10.0.0.1', '10.0.0.0/8', False),
('10.255.255.255', '10.0.0.0/8', True),
('10.0.0.0', '10.0.0.0/8', True),
('192.168.100.10', '10.0.0.0/8', False),
('2001:db8::1', '2001:db8::/64', False),
]
for gw_ip, network_cidr, result in data:
self.assertEqual(result, utils.check_gateway_invalid_in_subnet(
network_cidr, gw_ip))