# Copyright 2012 OpenStack Foundation # 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 contextlib import os import mock import netaddr from oslo.config import cfg import testtools from neutron.agent.common import config from neutron.agent.linux import dhcp from neutron.common import config as base_config from neutron.common import constants from neutron.openstack.common import log as logging from neutron.tests import base LOG = logging.getLogger(__name__) class FakeIPAllocation: def __init__(self, address, subnet_id=None): self.ip_address = address self.subnet_id = subnet_id class DhcpOpt(object): def __init__(self, **kwargs): self.__dict__.update(kwargs) def __str__(self): return str(self.__dict__) class FakePort1: id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee' admin_state_up = True device_owner = 'foo1' fixed_ips = [FakeIPAllocation('192.168.0.2', 'dddddddd-dddd-dddd-dddd-dddddddddddd')] mac_address = '00:00:80:aa:bb:cc' def __init__(self): self.extra_dhcp_opts = [] class FakePort2: id = 'ffffffff-ffff-ffff-ffff-ffffffffffff' admin_state_up = False device_owner = 'foo2' fixed_ips = [FakeIPAllocation('192.168.0.3', 'dddddddd-dddd-dddd-dddd-dddddddddddd')] mac_address = '00:00:f3:aa:bb:cc' def __init__(self): self.extra_dhcp_opts = [] class FakePort3: id = '44444444-4444-4444-4444-444444444444' admin_state_up = True device_owner = 'foo3' fixed_ips = [FakeIPAllocation('192.168.0.4', 'dddddddd-dddd-dddd-dddd-dddddddddddd'), FakeIPAllocation('192.168.1.2', 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee')] mac_address = '00:00:0f:aa:bb:cc' def __init__(self): self.extra_dhcp_opts = [] class FakePort4: id = 'gggggggg-gggg-gggg-gggg-gggggggggggg' admin_state_up = False device_owner = 'foo3' fixed_ips = [FakeIPAllocation('192.168.0.4', 'ffda:3ba5:a17a:4ba3:0216:3eff:fec2:771d')] mac_address = '00:16:3E:C2:77:1D' def __init__(self): self.extra_dhcp_opts = [] class FakeV6Port: id = 'hhhhhhhh-hhhh-hhhh-hhhh-hhhhhhhhhhhh' admin_state_up = True device_owner = 'foo3' fixed_ips = [FakeIPAllocation('fdca:3ba5:a17a:4ba3::2', 'ffffffff-ffff-ffff-ffff-ffffffffffff')] mac_address = '00:00:f3:aa:bb:cc' def __init__(self): self.extra_dhcp_opts = [] class FakeDualPort: id = 'hhhhhhhh-hhhh-hhhh-hhhh-hhhhhhhhhhhh' admin_state_up = True device_owner = 'foo3' fixed_ips = [FakeIPAllocation('192.168.0.3', 'dddddddd-dddd-dddd-dddd-dddddddddddd'), FakeIPAllocation('fdca:3ba5:a17a:4ba3::3', 'ffffffff-ffff-ffff-ffff-ffffffffffff')] mac_address = '00:00:0f:aa:bb:cc' def __init__(self): self.extra_dhcp_opts = [] class FakeRouterPort: id = 'rrrrrrrr-rrrr-rrrr-rrrr-rrrrrrrrrrrr' admin_state_up = True device_owner = constants.DEVICE_OWNER_ROUTER_INTF fixed_ips = [FakeIPAllocation('192.168.0.1', 'dddddddd-dddd-dddd-dddd-dddddddddddd')] mac_address = '00:00:0f:rr:rr:rr' def __init__(self, dev_owner=constants.DEVICE_OWNER_ROUTER_INTF): self.extra_dhcp_opts = [] self.device_owner = dev_owner class FakePortMultipleAgents1: id = 'rrrrrrrr-rrrr-rrrr-rrrr-rrrrrrrrrrrr' admin_state_up = True device_owner = constants.DEVICE_OWNER_DHCP fixed_ips = [FakeIPAllocation('192.168.0.5', 'dddddddd-dddd-dddd-dddd-dddddddddddd')] mac_address = '00:00:0f:dd:dd:dd' def __init__(self): self.extra_dhcp_opts = [] class FakePortMultipleAgents2: id = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa' admin_state_up = True device_owner = constants.DEVICE_OWNER_DHCP fixed_ips = [FakeIPAllocation('192.168.0.6', 'dddddddd-dddd-dddd-dddd-dddddddddddd')] mac_address = '00:00:0f:ee:ee:ee' def __init__(self): self.extra_dhcp_opts = [] class FakeV4HostRoute: destination = '20.0.0.1/24' nexthop = '20.0.0.1' class FakeV4HostRouteGateway: destination = '0.0.0.0/0' nexthop = '10.0.0.1' class FakeV6HostRoute: destination = '2001:0200:feed:7ac0::/64' nexthop = '2001:0200:feed:7ac0::1' class FakeV4Subnet: id = 'dddddddd-dddd-dddd-dddd-dddddddddddd' ip_version = 4 cidr = '192.168.0.0/24' gateway_ip = '192.168.0.1' enable_dhcp = True host_routes = [FakeV4HostRoute] dns_nameservers = ['8.8.8.8'] class FakeV4SubnetGatewayRoute: id = 'dddddddd-dddd-dddd-dddd-dddddddddddd' ip_version = 4 cidr = '192.168.0.0/24' gateway_ip = '192.168.0.1' enable_dhcp = True host_routes = [FakeV4HostRouteGateway] dns_nameservers = ['8.8.8.8'] class FakeV4SubnetMultipleAgentsWithoutDnsProvided: id = 'dddddddd-dddd-dddd-dddd-dddddddddddd' ip_version = 4 cidr = '192.168.0.0/24' gateway_ip = '192.168.0.1' enable_dhcp = True dns_nameservers = [] host_routes = [] class FakeV4MultipleAgentsWithoutDnsProvided: id = 'ffffffff-ffff-ffff-ffff-ffffffffffff' subnets = [FakeV4SubnetMultipleAgentsWithoutDnsProvided()] ports = [FakePort1(), FakePort2(), FakePort3(), FakeRouterPort(), FakePortMultipleAgents1(), FakePortMultipleAgents2()] namespace = 'qdhcp-ns' class FakeV4SubnetMultipleAgentsWithDnsProvided: id = 'dddddddd-dddd-dddd-dddd-dddddddddddd' ip_version = 4 cidr = '192.168.0.0/24' gateway_ip = '192.168.0.1' enable_dhcp = True dns_nameservers = ['8.8.8.8'] host_routes = [] class FakeV4MultipleAgentsWithDnsProvided: id = 'ffffffff-ffff-ffff-ffff-ffffffffffff' subnets = [FakeV4SubnetMultipleAgentsWithDnsProvided()] ports = [FakePort1(), FakePort2(), FakePort3(), FakeRouterPort(), FakePortMultipleAgents1(), FakePortMultipleAgents2()] namespace = 'qdhcp-ns' class FakeV6Subnet: id = 'ffffffff-ffff-ffff-ffff-ffffffffffff' ip_version = 6 cidr = 'fdca:3ba5:a17a:4ba3::/64' gateway_ip = 'fdca:3ba5:a17a:4ba3::1' enable_dhcp = True host_routes = [FakeV6HostRoute] dns_nameservers = ['2001:0200:feed:7ac0::1'] ipv6_ra_mode = None ipv6_address_mode = None class FakeV4SubnetNoDHCP: id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee' ip_version = 4 cidr = '192.168.1.0/24' gateway_ip = '192.168.1.1' enable_dhcp = False host_routes = [] dns_nameservers = [] class FakeV6SubnetDHCPStateful: id = 'ffffffff-ffff-ffff-ffff-ffffffffffff' ip_version = 6 cidr = 'fdca:3ba5:a17a:4ba3::/64' gateway_ip = 'fdca:3ba5:a17a:4ba3::1' enable_dhcp = True host_routes = [FakeV6HostRoute] dns_nameservers = ['2001:0200:feed:7ac0::1'] ipv6_ra_mode = None ipv6_address_mode = constants.DHCPV6_STATEFUL class FakeV6SubnetSlaac: id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee' ip_version = 6 cidr = 'ffda:3ba5:a17a:4ba3::/64' gateway_ip = 'ffda:3ba5:a17a:4ba3::1' enable_dhcp = True host_routes = [FakeV6HostRoute] ipv6_address_mode = constants.IPV6_SLAAC ipv6_ra_mode = None class FakeV4SubnetNoGateway: id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee' ip_version = 4 cidr = '192.168.1.0/24' gateway_ip = None enable_dhcp = True host_routes = [] dns_nameservers = [] class FakeV4SubnetNoRouter: id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee' ip_version = 4 cidr = '192.168.1.0/24' gateway_ip = '192.168.1.1' enable_dhcp = True host_routes = [] dns_nameservers = [] class FakeV4Network: id = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa' subnets = [FakeV4Subnet()] ports = [FakePort1()] namespace = 'qdhcp-ns' class FakeV6Network: id = 'bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb' subnets = [FakeV6Subnet()] ports = [FakePort2()] namespace = 'qdhcp-ns' class FakeDualNetwork: id = 'cccccccc-cccc-cccc-cccc-cccccccccccc' subnets = [FakeV4Subnet(), FakeV6SubnetDHCPStateful()] ports = [FakePort1(), FakeV6Port(), FakeDualPort(), FakeRouterPort()] namespace = 'qdhcp-ns' class FakeDualNetworkGatewayRoute: id = 'cccccccc-cccc-cccc-cccc-cccccccccccc' subnets = [FakeV4SubnetGatewayRoute(), FakeV6SubnetDHCPStateful()] ports = [FakePort1(), FakePort2(), FakePort3(), FakeRouterPort()] namespace = 'qdhcp-ns' class FakeDualNetworkSingleDHCP: id = 'cccccccc-cccc-cccc-cccc-cccccccccccc' subnets = [FakeV4Subnet(), FakeV4SubnetNoDHCP()] ports = [FakePort1(), FakePort2(), FakePort3(), FakeRouterPort()] namespace = 'qdhcp-ns' class FakeV4NoGatewayNetwork: id = 'cccccccc-cccc-cccc-cccc-cccccccccccc' subnets = [FakeV4SubnetNoGateway()] ports = [FakePort1()] class FakeV4NetworkNoRouter: id = 'cccccccc-cccc-cccc-cccc-cccccccccccc' subnets = [FakeV4SubnetNoRouter()] ports = [FakePort1()] class FakeV4NetworkDistRouter: id = 'cccccccc-cccc-cccc-cccc-cccccccccccc' subnets = [FakeV4Subnet()] ports = [FakePort1(), FakeRouterPort(dev_owner=constants.DEVICE_OWNER_DVR_INTERFACE)] class FakeDualV4Pxe3Ports: id = 'cccccccc-cccc-cccc-cccc-cccccccccccc' subnets = [FakeV4Subnet(), FakeV4SubnetNoDHCP()] ports = [FakePort1(), FakePort2(), FakePort3(), FakeRouterPort()] namespace = 'qdhcp-ns' def __init__(self, port_detail="portsSame"): if port_detail == "portsSame": self.ports[0].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] self.ports[1].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.1.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.1.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux2.0')] self.ports[2].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.1.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.1.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux3.0')] else: self.ports[0].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.2'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] self.ports[1].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.5'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.5'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux2.0')] self.ports[2].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.7'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.7'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux3.0')] class FakeV4NetworkPxe2Ports: id = 'dddddddd-dddd-dddd-dddd-dddddddddddd' subnets = [FakeV4Subnet()] ports = [FakePort1(), FakePort2(), FakeRouterPort()] namespace = 'qdhcp-ns' def __init__(self, port_detail="portsSame"): if port_detail == "portsSame": self.ports[0].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] self.ports[1].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] else: self.ports[0].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] self.ports[1].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.5'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.5'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] class FakeV4NetworkPxe3Ports: id = 'dddddddd-dddd-dddd-dddd-dddddddddddd' subnets = [FakeV4Subnet()] ports = [FakePort1(), FakePort2(), FakePort3(), FakeRouterPort()] namespace = 'qdhcp-ns' def __init__(self, port_detail="portsSame"): if port_detail == "portsSame": self.ports[0].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] self.ports[1].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.1.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.1.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] self.ports[2].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.1.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.1.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] else: self.ports[0].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.3'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.2'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux.0')] self.ports[1].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.5'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.5'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux2.0')] self.ports[2].extra_dhcp_opts = [ DhcpOpt(opt_name='tftp-server', opt_value='192.168.0.7'), DhcpOpt(opt_name='server-ip-address', opt_value='192.168.0.7'), DhcpOpt(opt_name='bootfile-name', opt_value='pxelinux3.0')] class FakeDualStackNetworkSingleDHCP: id = 'eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee' subnets = [FakeV4Subnet(), FakeV6SubnetSlaac()] ports = [FakePort1(), FakePort4(), FakeRouterPort()] class LocalChild(dhcp.DhcpLocalProcess): PORTS = {4: [4], 6: [6]} def __init__(self, *args, **kwargs): super(LocalChild, self).__init__(*args, **kwargs) self.called = [] def reload_allocations(self): self.called.append('reload') def restart(self): self.called.append('restart') def spawn_process(self): self.called.append('spawn') class TestBase(base.BaseTestCase): def setUp(self): super(TestBase, self).setUp() self.conf = config.setup_conf() self.conf.register_opts(base_config.core_opts) self.conf.register_opts(dhcp.OPTS) config.register_interface_driver_opts_helper(self.conf) instance = mock.patch("neutron.agent.linux.dhcp.DeviceManager") self.mock_mgr = instance.start() self.conf.register_opt(cfg.BoolOpt('enable_isolated_metadata', default=True)) self.config_parse(self.conf) self.conf.set_override('state_path', '') self.conf.use_namespaces = True self.replace_p = mock.patch('neutron.agent.linux.utils.replace_file') self.execute_p = mock.patch('neutron.agent.linux.utils.execute') self.safe = self.replace_p.start() self.execute = self.execute_p.start() class TestDhcpBase(TestBase): def test_existing_dhcp_networks_abstract_error(self): self.assertRaises(NotImplementedError, dhcp.DhcpBase.existing_dhcp_networks, None, None) def test_check_version_abstract_error(self): self.assertRaises(NotImplementedError, dhcp.DhcpBase.check_version) def test_base_abc_error(self): self.assertRaises(TypeError, dhcp.DhcpBase, None) def test_restart(self): class SubClass(dhcp.DhcpBase): def __init__(self): dhcp.DhcpBase.__init__(self, cfg.CONF, FakeV4Network(), None) self.called = [] def enable(self): self.called.append('enable') def disable(self, retain_port=False): self.called.append('disable %s' % retain_port) def reload_allocations(self): pass @property def active(self): return True c = SubClass() c.restart() self.assertEqual(c.called, ['disable True', 'enable']) class TestDhcpLocalProcess(TestBase): def test_active(self): with mock.patch('__builtin__.open') as mock_open: mock_open.return_value.__enter__ = lambda s: s mock_open.return_value.__exit__ = mock.Mock() mock_open.return_value.readline.return_value = \ 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa' with mock.patch.object(LocalChild, 'pid') as pid: pid.__get__ = mock.Mock(return_value=4) lp = LocalChild(self.conf, FakeV4Network()) self.assertTrue(lp.active) mock_open.assert_called_once_with('/proc/4/cmdline', 'r') def test_active_none(self): dummy_cmd_line = 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa' self.execute.return_value = (dummy_cmd_line, '') with mock.patch.object(LocalChild, 'pid') as pid: pid.__get__ = mock.Mock(return_value=None) lp = LocalChild(self.conf, FakeV4Network()) self.assertFalse(lp.active) def test_active_cmd_mismatch(self): with mock.patch('__builtin__.open') as mock_open: mock_open.return_value.__enter__ = lambda s: s mock_open.return_value.__exit__ = mock.Mock() mock_open.return_value.readline.return_value = \ 'bbbbbbbb-bbbb-bbbb-aaaa-aaaaaaaaaaaa' with mock.patch.object(LocalChild, 'pid') as pid: pid.__get__ = mock.Mock(return_value=4) lp = LocalChild(self.conf, FakeV4Network()) self.assertFalse(lp.active) mock_open.assert_called_once_with('/proc/4/cmdline', 'r') def test_get_conf_file_name(self): tpl = '/dhcp/aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa/dev' with mock.patch('os.path.isdir') as isdir: isdir.return_value = False with mock.patch('os.makedirs') as makedirs: lp = LocalChild(self.conf, FakeV4Network()) self.assertEqual(lp.get_conf_file_name('dev'), tpl) self.assertFalse(makedirs.called) def test_get_conf_file_name_ensure_dir(self): tpl = '/dhcp/aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa/dev' with mock.patch('os.path.isdir') as isdir: isdir.return_value = False with mock.patch('os.makedirs') as makedirs: lp = LocalChild(self.conf, FakeV4Network()) self.assertEqual(lp.get_conf_file_name('dev', True), tpl) self.assertTrue(makedirs.called) def test_enable_already_active(self): with mock.patch.object(LocalChild, 'active') as patched: patched.__get__ = mock.Mock(return_value=True) lp = LocalChild(self.conf, FakeV4Network()) lp.enable() self.assertEqual(lp.called, ['restart']) self.assertFalse(self.mock_mgr.return_value.setup.called) def test_enable(self): attrs_to_mock = dict( [(a, mock.DEFAULT) for a in ['active', 'get_conf_file_name', 'interface_name']] ) with mock.patch.multiple(LocalChild, **attrs_to_mock) as mocks: mocks['active'].__get__ = mock.Mock(return_value=False) mocks['get_conf_file_name'].return_value = '/dir' mocks['interface_name'].__set__ = mock.Mock() lp = LocalChild(self.conf, FakeDualNetwork()) lp.enable() self.mock_mgr.assert_has_calls( [mock.call(self.conf, 'sudo', None), mock.call().setup(mock.ANY)]) self.assertEqual(lp.called, ['spawn']) self.assertTrue(mocks['interface_name'].__set__.called) def test_disable_not_active(self): attrs_to_mock = dict([(a, mock.DEFAULT) for a in ['active', 'interface_name', 'pid']]) with mock.patch.multiple(LocalChild, **attrs_to_mock) as mocks: mocks['active'].__get__ = mock.Mock(return_value=False) mocks['pid'].__get__ = mock.Mock(return_value=5) mocks['interface_name'].__get__ = mock.Mock(return_value='tap0') with mock.patch.object(dhcp.LOG, 'debug') as log: network = FakeDualNetwork() lp = LocalChild(self.conf, network) lp.device_manager = mock.Mock() lp.disable() msg = log.call_args[0][0] self.assertIn('does not exist', msg) lp.device_manager.destroy.assert_called_once_with( network, 'tap0') def test_disable_unknown_network(self): attrs_to_mock = dict([(a, mock.DEFAULT) for a in ['active', 'interface_name', 'pid']]) with mock.patch.multiple(LocalChild, **attrs_to_mock) as mocks: mocks['active'].__get__ = mock.Mock(return_value=False) mocks['pid'].__get__ = mock.Mock(return_value=None) mocks['interface_name'].__get__ = mock.Mock(return_value='tap0') with mock.patch.object(dhcp.LOG, 'debug') as log: lp = LocalChild(self.conf, FakeDualNetwork()) lp.disable() msg = log.call_args[0][0] self.assertIn('No DHCP', msg) def test_disable_retain_port(self): attrs_to_mock = dict([(a, mock.DEFAULT) for a in ['active', 'interface_name', 'pid']]) network = FakeDualNetwork() with mock.patch.multiple(LocalChild, **attrs_to_mock) as mocks: mocks['active'].__get__ = mock.Mock(return_value=True) mocks['pid'].__get__ = mock.Mock(return_value=5) mocks['interface_name'].__get__ = mock.Mock(return_value='tap0') lp = LocalChild(self.conf, network) lp.disable(retain_port=True) exp_args = ['kill', '-9', 5] self.execute.assert_called_once_with(exp_args, 'sudo') def test_disable(self): attrs_to_mock = dict([(a, mock.DEFAULT) for a in ['active', 'interface_name', 'pid']]) network = FakeDualNetwork() with mock.patch.multiple(LocalChild, **attrs_to_mock) as mocks: mocks['active'].__get__ = mock.Mock(return_value=True) mocks['pid'].__get__ = mock.Mock(return_value=5) mocks['interface_name'].__get__ = mock.Mock(return_value='tap0') lp = LocalChild(self.conf, network) with mock.patch('neutron.agent.linux.ip_lib.IPWrapper') as ip: lp.disable() self.mock_mgr.assert_has_calls([mock.call(self.conf, 'sudo', None), mock.call().destroy(network, 'tap0')]) exp_args = ['kill', '-9', 5] self.execute.assert_called_once_with(exp_args, 'sudo') self.assertEqual(ip.return_value.netns.delete.call_count, 0) def test_disable_delete_ns(self): self.conf.set_override('dhcp_delete_namespaces', True) attrs_to_mock = dict([(a, mock.DEFAULT) for a in ['active', 'pid']]) with mock.patch.multiple(LocalChild, **attrs_to_mock) as mocks: mocks['active'].__get__ = mock.Mock(return_value=False) mocks['pid'].__get__ = mock.Mock(return_value=False) lp = LocalChild(self.conf, FakeDualNetwork()) with mock.patch('neutron.agent.linux.ip_lib.IPWrapper') as ip: lp.disable() ip.return_value.netns.delete.assert_called_with('qdhcp-ns') def test_pid(self): with mock.patch('__builtin__.open') as mock_open: mock_open.return_value.__enter__ = lambda s: s mock_open.return_value.__exit__ = mock.Mock() mock_open.return_value.read.return_value = '5' lp = LocalChild(self.conf, FakeDualNetwork()) self.assertEqual(lp.pid, 5) def test_pid_no_an_int(self): with mock.patch('__builtin__.open') as mock_open: mock_open.return_value.__enter__ = lambda s: s mock_open.return_value.__exit__ = mock.Mock() mock_open.return_value.read.return_value = 'foo' lp = LocalChild(self.conf, FakeDualNetwork()) self.assertIsNone(lp.pid) def test_pid_invalid_file(self): with mock.patch.object(LocalChild, 'get_conf_file_name') as conf_file: conf_file.return_value = '.doesnotexist/pid' lp = LocalChild(self.conf, FakeDualNetwork()) self.assertIsNone(lp.pid) def test_get_interface_name(self): with mock.patch('__builtin__.open') as mock_open: mock_open.return_value.__enter__ = lambda s: s mock_open.return_value.__exit__ = mock.Mock() mock_open.return_value.read.return_value = 'tap0' lp = LocalChild(self.conf, FakeDualNetwork()) self.assertEqual(lp.interface_name, 'tap0') def test_set_interface_name(self): with mock.patch('neutron.agent.linux.utils.replace_file') as replace: lp = LocalChild(self.conf, FakeDualNetwork()) with mock.patch.object(lp, 'get_conf_file_name') as conf_file: conf_file.return_value = '/interface' lp.interface_name = 'tap0' conf_file.assert_called_once_with('interface', ensure_conf_dir=True) replace.assert_called_once_with(mock.ANY, 'tap0') class TestDnsmasq(TestBase): def _test_spawn(self, extra_options, network=FakeDualNetwork(), max_leases=16777216, lease_duration=86400, has_static=True): def mock_get_conf_file_name(kind, ensure_conf_dir=False): return '/dhcp/%s/%s' % (network.id, kind) def fake_argv(index): if index == 0: return '/usr/local/bin/neutron-dhcp-agent' else: raise IndexError() expected = [ 'ip', 'netns', 'exec', 'qdhcp-ns', 'env', 'NEUTRON_NETWORK_ID=%s' % network.id, 'dnsmasq', '--no-hosts', '--no-resolv', '--strict-order', '--bind-interfaces', '--interface=tap0', '--except-interface=lo', '--pid-file=/dhcp/%s/pid' % network.id, '--dhcp-hostsfile=/dhcp/%s/host' % network.id, '--addn-hosts=/dhcp/%s/addn_hosts' % network.id, '--dhcp-optsfile=/dhcp/%s/opts' % network.id, '--leasefile-ro'] seconds = '' if lease_duration == -1: lease_duration = 'infinite' else: seconds = 's' if has_static: prefix = '--dhcp-range=set:tag%d,%s,static,%s%s' else: prefix = '--dhcp-range=set:tag%d,%s,%s%s' possible_leases = 0 for i, s in enumerate(network.subnets): if (s.ip_version != 6 or s.ipv6_address_mode == constants.DHCPV6_STATEFUL): expected.extend([prefix % ( i, s.cidr.split('/')[0], lease_duration, seconds)]) possible_leases += netaddr.IPNetwork(s.cidr).size expected.append('--dhcp-lease-max=%d' % min( possible_leases, max_leases)) expected.extend(extra_options) self.execute.return_value = ('', '') attrs_to_mock = dict( [(a, mock.DEFAULT) for a in ['_output_opts_file', 'get_conf_file_name', 'interface_name']] ) with mock.patch.multiple(dhcp.Dnsmasq, **attrs_to_mock) as mocks: mocks['get_conf_file_name'].side_effect = mock_get_conf_file_name mocks['_output_opts_file'].return_value = ( '/dhcp/%s/opts' % network.id ) mocks['interface_name'].__get__ = mock.Mock(return_value='tap0') with mock.patch.object(dhcp.sys, 'argv') as argv: argv.__getitem__.side_effect = fake_argv dm = dhcp.Dnsmasq(self.conf, network, version=dhcp.Dnsmasq.MINIMUM_VERSION) dm.spawn_process() self.assertTrue(mocks['_output_opts_file'].called) self.execute.assert_called_once_with(expected, root_helper='sudo', check_exit_code=True, extra_ok_codes=None) def test_spawn(self): self._test_spawn(['--conf-file=', '--domain=openstacklocal']) def test_spawn_infinite_lease_duration(self): self.conf.set_override('dhcp_lease_duration', -1) self._test_spawn(['--conf-file=', '--domain=openstacklocal'], FakeDualNetwork(), 16777216, -1) def test_spawn_cfg_config_file(self): self.conf.set_override('dnsmasq_config_file', '/foo') self._test_spawn(['--conf-file=/foo', '--domain=openstacklocal']) def test_spawn_no_dhcp_domain(self): (exp_host_name, exp_host_data, exp_addn_name, exp_addn_data) = self._test_no_dhcp_domain_alloc_data self.conf.set_override('dhcp_domain', '') self._test_spawn(['--conf-file=']) self.safe.assert_has_calls([mock.call(exp_host_name, exp_host_data), mock.call(exp_addn_name, exp_addn_data)]) def test_spawn_no_dhcp_range(self): network = FakeV6Network() subnet = FakeV6SubnetSlaac() network.subnets = [subnet] self._test_spawn(['--conf-file=', '--domain=openstacklocal'], network, has_static=False) def test_spawn_cfg_dns_server(self): self.conf.set_override('dnsmasq_dns_servers', ['8.8.8.8']) self._test_spawn(['--conf-file=', '--server=8.8.8.8', '--domain=openstacklocal']) def test_spawn_cfg_multiple_dns_server(self): self.conf.set_override('dnsmasq_dns_servers', ['8.8.8.8', '9.9.9.9']) self._test_spawn(['--conf-file=', '--server=8.8.8.8', '--server=9.9.9.9', '--domain=openstacklocal']) def test_spawn_max_leases_is_smaller_than_cap(self): self._test_spawn( ['--conf-file=', '--domain=openstacklocal'], network=FakeV4Network(), max_leases=256) def test_spawn_cfg_broadcast(self): self.conf.set_override('dhcp_broadcast_reply', True) self._test_spawn(['--conf-file=', '--domain=openstacklocal', '--dhcp-broadcast']) def test_output_opts_file(self): fake_v6 = '2001:0200:feed:7ac0::1' expected = ( 'tag:tag0,option:dns-server,8.8.8.8\n' 'tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1,' '0.0.0.0/0,192.168.0.1\n' 'tag:tag0,249,20.0.0.1/24,20.0.0.1,0.0.0.0/0,192.168.0.1\n' 'tag:tag0,option:router,192.168.0.1\n' 'tag:tag1,option6:dns-server,%s\n' 'tag:tag1,option6:domain-search,openstacklocal').lstrip() % ( '[' + fake_v6 + ']') with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeDualNetwork(), version=dhcp.Dnsmasq.MINIMUM_VERSION) dm._output_opts_file() self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_gateway_route(self): fake_v6 = '2001:0200:feed:7ac0::1' expected = """ tag:tag0,option:dns-server,8.8.8.8 tag:tag0,option:router,192.168.0.1 tag:tag1,option6:dns-server,%s tag:tag1,option6:domain-search,openstacklocal""".lstrip() % ( '[' + fake_v6 + ']') with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeDualNetworkGatewayRoute(), version=dhcp.Dnsmasq.MINIMUM_VERSION) dm._output_opts_file() self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_multiple_agents_without_dns_provided(self): expected = """ tag:tag0,option:router,192.168.0.1 tag:tag0,option:dns-server,192.168.0.5,192.168.0.6""".lstrip() with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeV4MultipleAgentsWithoutDnsProvided(), version=dhcp.Dnsmasq.MINIMUM_VERSION) dm._output_opts_file() self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_multiple_agents_with_dns_provided(self): expected = """ tag:tag0,option:dns-server,8.8.8.8 tag:tag0,option:router,192.168.0.1""".lstrip() with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeV4MultipleAgentsWithDnsProvided(), version=dhcp.Dnsmasq.MINIMUM_VERSION) dm._output_opts_file() self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_single_dhcp(self): expected = ( 'tag:tag0,option:dns-server,8.8.8.8\n' 'tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1,' '0.0.0.0/0,192.168.0.1\n' 'tag:tag0,249,20.0.0.1/24,20.0.0.1,0.0.0.0/0,192.168.0.1\n' 'tag:tag0,option:router,192.168.0.1').lstrip() with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeDualNetworkSingleDHCP(), version=dhcp.Dnsmasq.MINIMUM_VERSION) dm._output_opts_file() self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_no_gateway(self): expected = """ tag:tag0,option:classless-static-route,169.254.169.254/32,192.168.1.1 tag:tag0,249,169.254.169.254/32,192.168.1.1 tag:tag0,option:router""".lstrip() with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeV4NoGatewayNetwork(), version=dhcp.Dnsmasq.MINIMUM_VERSION) with mock.patch.object(dm, '_make_subnet_interface_ip_map') as ipm: ipm.return_value = {FakeV4SubnetNoGateway.id: '192.168.1.1'} dm._output_opts_file() self.assertTrue(ipm.called) self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_no_neutron_router_on_subnet(self): expected = ( 'tag:tag0,option:classless-static-route,' '169.254.169.254/32,192.168.1.2,0.0.0.0/0,192.168.1.1\n' 'tag:tag0,249,169.254.169.254/32,192.168.1.2,' '0.0.0.0/0,192.168.1.1\n' 'tag:tag0,option:router,192.168.1.1').lstrip() with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeV4NetworkNoRouter(), version=dhcp.Dnsmasq.MINIMUM_VERSION) with mock.patch.object(dm, '_make_subnet_interface_ip_map') as ipm: ipm.return_value = {FakeV4SubnetNoRouter.id: '192.168.1.2'} dm._output_opts_file() self.assertTrue(ipm.called) self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_dist_neutron_router_on_subnet(self): expected = ( 'tag:tag0,option:dns-server,8.8.8.8\n' 'tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1,' '0.0.0.0/0,192.168.0.1\n' 'tag:tag0,249,20.0.0.1/24,20.0.0.1,0.0.0.0/0,192.168.0.1\n' 'tag:tag0,option:router,192.168.0.1').lstrip() with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeV4NetworkDistRouter(), version=dhcp.Dnsmasq.MINIMUM_VERSION) with mock.patch.object(dm, '_make_subnet_interface_ip_map') as ipm: ipm.return_value = {FakeV4Subnet.id: '192.168.0.1'} dm._output_opts_file() self.assertTrue(ipm.called) self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_pxe_2port_1net(self): expected = ( 'tag:tag0,option:dns-server,8.8.8.8\n' 'tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1,' '0.0.0.0/0,192.168.0.1\n' 'tag:tag0,249,20.0.0.1/24,20.0.0.1,0.0.0.0/0,192.168.0.1\n' 'tag:tag0,option:router,192.168.0.1\n' 'tag:eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee,' 'option:tftp-server,192.168.0.3\n' 'tag:eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee,' 'option:server-ip-address,192.168.0.2\n' 'tag:eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee,' 'option:bootfile-name,pxelinux.0\n' 'tag:ffffffff-ffff-ffff-ffff-ffffffffffff,' 'option:tftp-server,192.168.0.3\n' 'tag:ffffffff-ffff-ffff-ffff-ffffffffffff,' 'option:server-ip-address,192.168.0.2\n' 'tag:ffffffff-ffff-ffff-ffff-ffffffffffff,' 'option:bootfile-name,pxelinux.0') expected = expected.lstrip() with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' fp = FakeV4NetworkPxe2Ports() dm = dhcp.Dnsmasq(self.conf, fp, version=dhcp.Dnsmasq.MINIMUM_VERSION) dm._output_opts_file() self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_pxe_2port_1net_diff_details(self): expected = ( 'tag:tag0,option:dns-server,8.8.8.8\n' 'tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1,' '0.0.0.0/0,192.168.0.1\n' 'tag:tag0,249,20.0.0.1/24,20.0.0.1,0.0.0.0/0,192.168.0.1\n' 'tag:tag0,option:router,192.168.0.1\n' 'tag:eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee,' 'option:tftp-server,192.168.0.3\n' 'tag:eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee,' 'option:server-ip-address,192.168.0.2\n' 'tag:eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee,' 'option:bootfile-name,pxelinux.0\n' 'tag:ffffffff-ffff-ffff-ffff-ffffffffffff,' 'option:tftp-server,192.168.0.5\n' 'tag:ffffffff-ffff-ffff-ffff-ffffffffffff,' 'option:server-ip-address,192.168.0.5\n' 'tag:ffffffff-ffff-ffff-ffff-ffffffffffff,' 'option:bootfile-name,pxelinux.0') expected = expected.lstrip() with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeV4NetworkPxe2Ports("portsDiff"), version=dhcp.Dnsmasq.MINIMUM_VERSION) dm._output_opts_file() self.safe.assert_called_once_with('/foo/opts', expected) def test_output_opts_file_pxe_3port_2net(self): expected = ( 'tag:tag0,option:dns-server,8.8.8.8\n' 'tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1,' '0.0.0.0/0,192.168.0.1\n' 'tag:tag0,249,20.0.0.1/24,20.0.0.1,0.0.0.0/0,192.168.0.1\n' 'tag:tag0,option:router,192.168.0.1\n' 'tag:eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee,' 'option:tftp-server,192.168.0.3\n' 'tag:eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee,' 'option:server-ip-address,192.168.0.2\n' 'tag:eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee,' 'option:bootfile-name,pxelinux.0\n' 'tag:ffffffff-ffff-ffff-ffff-ffffffffffff,' 'option:tftp-server,192.168.1.3\n' 'tag:ffffffff-ffff-ffff-ffff-ffffffffffff,' 'option:server-ip-address,192.168.1.2\n' 'tag:ffffffff-ffff-ffff-ffff-ffffffffffff,' 'option:bootfile-name,pxelinux2.0\n' 'tag:44444444-4444-4444-4444-444444444444,' 'option:tftp-server,192.168.1.3\n' 'tag:44444444-4444-4444-4444-444444444444,' 'option:server-ip-address,192.168.1.2\n' 'tag:44444444-4444-4444-4444-444444444444,' 'option:bootfile-name,pxelinux3.0') expected = expected.lstrip() with mock.patch.object(dhcp.Dnsmasq, 'get_conf_file_name') as conf_fn: conf_fn.return_value = '/foo/opts' dm = dhcp.Dnsmasq(self.conf, FakeDualV4Pxe3Ports(), version=dhcp.Dnsmasq.MINIMUM_VERSION) dm._output_opts_file() self.safe.assert_called_once_with('/foo/opts', expected) @property def _test_no_dhcp_domain_alloc_data(self): exp_host_name = '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/host' exp_host_data = ('00:00:80:aa:bb:cc,host-192-168-0-2,' '192.168.0.2\n' '00:00:f3:aa:bb:cc,host-fdca-3ba5-a17a-4ba3--2,' '[fdca:3ba5:a17a:4ba3::2]\n' '00:00:0f:aa:bb:cc,host-192-168-0-3,' '192.168.0.3\n' '00:00:0f:aa:bb:cc,host-fdca-3ba5-a17a-4ba3--3,' '[fdca:3ba5:a17a:4ba3::3]\n' '00:00:0f:rr:rr:rr,host-192-168-0-1,' '192.168.0.1\n').lstrip() exp_addn_name = '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/addn_hosts' exp_addn_data = ( '192.168.0.2\t' 'host-192-168-0-2 host-192-168-0-2\n' 'fdca:3ba5:a17a:4ba3::2\t' 'host-fdca-3ba5-a17a-4ba3--2 ' 'host-fdca-3ba5-a17a-4ba3--2\n' '192.168.0.3\thost-192-168-0-3 ' 'host-192-168-0-3\n' 'fdca:3ba5:a17a:4ba3::3\t' 'host-fdca-3ba5-a17a-4ba3--3 ' 'host-fdca-3ba5-a17a-4ba3--3\n' '192.168.0.1\t' 'host-192-168-0-1 ' 'host-192-168-0-1\n' ).lstrip() return (exp_host_name, exp_host_data, exp_addn_name, exp_addn_data) @property def _test_reload_allocation_data(self): exp_host_name = '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/host' exp_host_data = ('00:00:80:aa:bb:cc,host-192-168-0-2.openstacklocal,' '192.168.0.2\n' '00:00:f3:aa:bb:cc,host-fdca-3ba5-a17a-4ba3--2.' 'openstacklocal,[fdca:3ba5:a17a:4ba3::2]\n' '00:00:0f:aa:bb:cc,host-192-168-0-3.openstacklocal,' '192.168.0.3\n' '00:00:0f:aa:bb:cc,host-fdca-3ba5-a17a-4ba3--3.' 'openstacklocal,[fdca:3ba5:a17a:4ba3::3]\n' '00:00:0f:rr:rr:rr,host-192-168-0-1.openstacklocal,' '192.168.0.1\n').lstrip() exp_addn_name = '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/addn_hosts' exp_addn_data = ( '192.168.0.2\t' 'host-192-168-0-2.openstacklocal host-192-168-0-2\n' 'fdca:3ba5:a17a:4ba3::2\t' 'host-fdca-3ba5-a17a-4ba3--2.openstacklocal ' 'host-fdca-3ba5-a17a-4ba3--2\n' '192.168.0.3\thost-192-168-0-3.openstacklocal ' 'host-192-168-0-3\n' 'fdca:3ba5:a17a:4ba3::3\t' 'host-fdca-3ba5-a17a-4ba3--3.openstacklocal ' 'host-fdca-3ba5-a17a-4ba3--3\n' '192.168.0.1\t' 'host-192-168-0-1.openstacklocal ' 'host-192-168-0-1\n' ).lstrip() exp_opt_name = '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/opts' fake_v6 = '2001:0200:feed:7ac0::1' exp_opt_data = ( 'tag:tag0,option:dns-server,8.8.8.8\n' 'tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1,' '0.0.0.0/0,192.168.0.1\n' 'tag:tag0,249,20.0.0.1/24,20.0.0.1,0.0.0.0/0,192.168.0.1\n' 'tag:tag0,option:router,192.168.0.1\n' 'tag:tag1,option6:dns-server,%s\n' 'tag:tag1,option6:domain-search,openstacklocal').lstrip() % ( '[' + fake_v6 + ']') return (exp_host_name, exp_host_data, exp_addn_name, exp_addn_data, exp_opt_name, exp_opt_data,) def test_reload_allocations(self): (exp_host_name, exp_host_data, exp_addn_name, exp_addn_data, exp_opt_name, exp_opt_data,) = self._test_reload_allocation_data exp_args = ['kill', '-HUP', 5] fake_net = FakeDualNetwork() dm = dhcp.Dnsmasq(self.conf, fake_net, version=dhcp.Dnsmasq.MINIMUM_VERSION) with contextlib.nested( mock.patch('os.path.isdir', return_value=True), mock.patch.object(dhcp.Dnsmasq, 'active'), mock.patch.object(dhcp.Dnsmasq, 'pid'), mock.patch.object(dhcp.Dnsmasq, 'interface_name'), mock.patch.object(dhcp.Dnsmasq, '_make_subnet_interface_ip_map'), mock.patch.object(dm, 'device_manager') ) as (isdir, active, pid, interface_name, ip_map, device_manager): active.__get__ = mock.Mock(return_value=True) pid.__get__ = mock.Mock(return_value=5) interface_name.__get__ = mock.Mock(return_value='tap12345678-12') ip_map.return_value = {} dm.reload_allocations() self.assertTrue(ip_map.called) self.safe.assert_has_calls([mock.call(exp_host_name, exp_host_data), mock.call(exp_addn_name, exp_addn_data), mock.call(exp_opt_name, exp_opt_data)]) self.execute.assert_called_once_with(exp_args, 'sudo') device_manager.update.assert_called_with(fake_net, 'tap12345678-12') def test_reload_allocations_stale_pid(self): (exp_host_name, exp_host_data, exp_addn_name, exp_addn_data, exp_opt_name, exp_opt_data,) = self._test_reload_allocation_data with mock.patch('__builtin__.open') as mock_open: mock_open.return_value.__enter__ = lambda s: s mock_open.return_value.__exit__ = mock.Mock() mock_open.return_value.readline.return_value = None with mock.patch('os.path.isdir') as isdir: isdir.return_value = True with mock.patch.object(dhcp.Dnsmasq, 'pid') as pid: pid.__get__ = mock.Mock(return_value=5) dm = dhcp.Dnsmasq(self.conf, FakeDualNetwork(), version=dhcp.Dnsmasq.MINIMUM_VERSION) method_name = '_make_subnet_interface_ip_map' with mock.patch.object(dhcp.Dnsmasq, method_name) as ipmap: ipmap.return_value = {} with mock.patch.object(dhcp.Dnsmasq, 'interface_name'): dm.reload_allocations() self.assertTrue(ipmap.called) self.safe.assert_has_calls([ mock.call(exp_host_name, exp_host_data), mock.call(exp_addn_name, exp_addn_data), mock.call(exp_opt_name, exp_opt_data), ]) mock_open.assert_called_once_with('/proc/5/cmdline', 'r') def test_release_unused_leases(self): dnsmasq = dhcp.Dnsmasq(self.conf, FakeDualNetwork()) ip1 = '192.168.1.2' mac1 = '00:00:80:aa:bb:cc' ip2 = '192.168.1.3' mac2 = '00:00:80:cc:bb:aa' old_leases = set([(ip1, mac1), (ip2, mac2)]) dnsmasq._read_hosts_file_leases = mock.Mock(return_value=old_leases) dnsmasq._output_hosts_file = mock.Mock() dnsmasq._release_lease = mock.Mock() dnsmasq.network.ports = [] dnsmasq._release_unused_leases() dnsmasq._release_lease.assert_has_calls([mock.call(mac1, ip1), mock.call(mac2, ip2)], any_order=True) def test_release_unused_leases_one_lease(self): dnsmasq = dhcp.Dnsmasq(self.conf, FakeDualNetwork()) ip1 = '192.168.0.2' mac1 = '00:00:80:aa:bb:cc' ip2 = '192.168.0.3' mac2 = '00:00:80:cc:bb:aa' old_leases = set([(ip1, mac1), (ip2, mac2)]) dnsmasq._read_hosts_file_leases = mock.Mock(return_value=old_leases) dnsmasq._output_hosts_file = mock.Mock() dnsmasq._release_lease = mock.Mock() dnsmasq.network.ports = [FakePort1()] dnsmasq._release_unused_leases() dnsmasq._release_lease.assert_has_calls([mock.call(mac2, ip2)], any_order=True) def test_read_hosts_file_leases(self): filename = '/path/to/file' with mock.patch('os.path.exists') as mock_exists: mock_exists.return_value = True with mock.patch('__builtin__.open') as mock_open: mock_open.return_value.__enter__ = lambda s: s mock_open.return_value.__exit__ = mock.Mock() lines = ["00:00:80:aa:bb:cc,inst-name,192.168.0.1"] mock_open.return_value.readlines.return_value = lines dnsmasq = dhcp.Dnsmasq(self.conf, FakeDualNetwork()) leases = dnsmasq._read_hosts_file_leases(filename) self.assertEqual(set([("192.168.0.1", "00:00:80:aa:bb:cc")]), leases) mock_exists.assert_called_once_with(filename) mock_open.assert_called_once_with(filename) def test_make_subnet_interface_ip_map(self): with mock.patch('neutron.agent.linux.ip_lib.IPDevice') as ip_dev: ip_dev.return_value.addr.list.return_value = [ {'cidr': '192.168.0.1/24'} ] dm = dhcp.Dnsmasq(self.conf, FakeDualNetwork()) self.assertEqual( dm._make_subnet_interface_ip_map(), {FakeV4Subnet.id: '192.168.0.1'} ) def test_remove_config_files(self): net = FakeV4Network() path = '/opt/data/neutron/dhcp' self.conf.dhcp_confs = path with mock.patch('shutil.rmtree') as rmtree: lp = LocalChild(self.conf, net) lp._remove_config_files() rmtree.assert_called_once_with(os.path.join(path, net.id), ignore_errors=True) def test_existing_dhcp_networks(self): path = '/opt/data/neutron/dhcp' self.conf.dhcp_confs = path cases = { # network_uuid --> is_dhcp_alive? 'aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa': True, 'bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb': False, 'not_uuid_like_name': True } def active_fake(self, instance, cls): return cases[instance.network.id] with mock.patch('os.listdir') as mock_listdir: with mock.patch.object(dhcp.Dnsmasq, 'active') as mock_active: mock_active.__get__ = active_fake mock_listdir.return_value = cases.keys() result = dhcp.Dnsmasq.existing_dhcp_networks(self.conf, 'sudo') mock_listdir.assert_called_once_with(path) self.assertEqual(['aaaaaaaa-aaaa-aaaa-aaaa-aaaaaaaaaaaa', 'bbbbbbbb-bbbb-bbbb-bbbb-bbbbbbbbbbbb'], sorted(result)) def _check_version(self, cmd_out, expected_value): with mock.patch('neutron.agent.linux.utils.execute') as cmd: cmd.return_value = cmd_out result = dhcp.Dnsmasq.check_version() self.assertEqual(result, expected_value) def test_check_minimum_version(self): self._check_version('Dnsmasq version 2.63 Copyright (c)...', dhcp.Dnsmasq.MINIMUM_VERSION) def test_check_future_version(self): self._check_version('Dnsmasq version 2.65 Copyright (c)...', float(2.65)) def test_check_fail_version(self): with testtools.ExpectedException(SystemExit): self._check_version('Dnsmasq version 2.62 Copyright (c)...', 0) def test_check_version_failed_cmd_execution(self): with testtools.ExpectedException(SystemExit): self._check_version('Error while executing command', 0) def test_only_populates_dhcp_enabled_subnets(self): exp_host_name = '/dhcp/eeeeeeee-eeee-eeee-eeee-eeeeeeeeeeee/host' exp_host_data = ('00:00:80:aa:bb:cc,host-192-168-0-2.openstacklocal,' '192.168.0.2\n' '00:16:3E:C2:77:1D,host-192-168-0-4.openstacklocal,' '192.168.0.4\n' '00:00:0f:rr:rr:rr,host-192-168-0-1.openstacklocal,' '192.168.0.1\n').lstrip() dm = dhcp.Dnsmasq(self.conf, FakeDualStackNetworkSingleDHCP(), version=dhcp.Dnsmasq.MINIMUM_VERSION) dm._output_hosts_file() self.safe.assert_has_calls([mock.call(exp_host_name, exp_host_data)])