def test_reload_allocations(self):
exp_host_name = '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/host'
exp_host_data = """
00:00:80:aa:bb:cc,192-168-0-2.openstacklocal,192.168.0.2
00:00:f3:aa:bb:cc,fdca-3ba5-a17a-4ba3--2.openstacklocal,fdca:3ba5:a17a:4ba3::2
00:00:0f:aa:bb:cc,192-168-0-3.openstacklocal,192.168.0.3
00:00:0f:aa:bb:cc,fdca-3ba5-a17a-4ba3--3.openstacklocal,fdca:3ba5:a17a:4ba3::3
""".lstrip()
exp_opt_name = '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/opts'
exp_opt_data = "tag:tag0,option:router,192.168.0.1"
fake_v6 = 'gdca:3ba5:a17a:4ba3::1'
fake_v6_cidr = 'gdca:3ba5:a17a:4ba3::/64'
exp_opt_data = """
tag:tag0,option:dns-server,8.8.8.8
tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1
tag:tag0,option:router,192.168.0.1
tag:tag1,option:dns-server,%s
tag:tag1,option:classless-static-route,%s,%s""".lstrip() % (fake_v6,
fake_v6_cidr,
fake_v6)
exp_args = ['ip', 'netns', 'exec', 'qdhcp-ns', 'kill', '-HUP', 5]
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(),
namespace='qdhcp-ns')
dm.reload_allocations()
self.safe.assert_has_calls([mock.call(exp_host_name, exp_host_data),
mock.call(exp_opt_name, exp_opt_data)])
self.execute.assert_called_once_with(exp_args, root_helper='sudo')
def test_output_opts_file_no_gateway(self):
expected = "tag:tag0,option:router"
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())
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
tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1
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())
dm._output_opts_file()
self.safe.assert_called_once_with('/foo/opts', expected)
def _test_spawn(self, extra_options):
def mock_get_conf_file_name(kind, ensure_conf_dir=False):
return '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/%s' % kind
def fake_argv(index):
if index == 0:
return '/usr/local/bin/quantum-dhcp-agent'
else:
raise IndexError
expected = [
'QUANTUM_RELAY_SOCKET_PATH=/dhcp/lease_relay',
'QUANTUM_NETWORK_ID=cccccccc-cccc-cccc-cccc-cccccccccccc', 'ip',
'netns', 'exec', 'qdhcp-ns', 'dnsmasq', '--no-hosts',
'--no-resolv', '--strict-order', '--bind-interfaces',
'--interface=tap0', '--except-interface=lo',
'--pid-file=/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/pid',
'--dhcp-hostsfile=/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/host',
'--dhcp-optsfile=/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/opts',
('--dhcp-script=/usr/local/bin/quantum-dhcp-agent-'
'dnsmasq-lease-update'), '--leasefile-ro',
'--dhcp-range=set:tag0,192.168.0.0,static,120s',
'--dhcp-range=set:tag1,fdca:3ba5:a17a:4ba3::,static,120s'
]
expected.extend(extra_options)
self.execute.return_value = ('', '')
delegate = mock.Mock()
delegate.get_interface_name.return_value = 'tap0'
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/cccccccc-cccc-cccc-cccc-cccccccccccc/opts')
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,
FakeDualNetwork(),
device_delegate=delegate,
namespace='qdhcp-ns',
version=float(2.59))
dm.spawn_process()
self.assertTrue(mocks['_output_opts_file'].called)
self.execute.assert_called_once_with(expected,
root_helper='sudo',
check_exit_code=True)
def test_make_subnet_interface_ip_map(self):
with mock.patch('quantum.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(),
namespace='qdhcp-ns')
self.assertEqual(dm._make_subnet_interface_ip_map(),
{FakeV4Subnet.id: '192.168.0.1'})
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,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=float(2.59))
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(self):
fake_v6 = 'gdca:3ba5:a17a:4ba3::1'
fake_v6_cidr = 'gdca:3ba5:a17a:4ba3::/64'
expected = """
tag:tag0,option:dns-server,8.8.8.8
tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1
tag:tag0,option:router,192.168.0.1
tag:tag1,option:dns-server,%s
tag:tag1,option:classless-static-route,%s,%s""".lstrip() % (fake_v6,
fake_v6_cidr,
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())
dm._output_opts_file()
self.safe.assert_called_once_with('/foo/opts', expected)
def test_reload_allocations_stale_pid(self):
exp_host_name = '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/host'
exp_host_data = """
00:00:80:aa:bb:cc,192-168-0-2.openstacklocal,192.168.0.2
00:00:f3:aa:bb:cc,fdca-3ba5-a17a-4ba3--2.openstacklocal,fdca:3ba5:a17a:4ba3::2
00:00:0f:aa:bb:cc,192-168-0-3.openstacklocal,192.168.0.3
00:00:0f:aa:bb:cc,fdca-3ba5-a17a-4ba3--3.openstacklocal,fdca:3ba5:a17a:4ba3::3
""".lstrip()
exp_opt_name = '/dhcp/cccccccc-cccc-cccc-cccc-cccccccccccc/opts'
exp_opt_data = "tag:tag0,option:router,192.168.0.1"
fake_v6 = 'gdca:3ba5:a17a:4ba3::1'
fake_v6_cidr = 'gdca:3ba5:a17a:4ba3::/64'
exp_opt_data = """
tag:tag0,option:dns-server,8.8.8.8
tag:tag0,option:classless-static-route,20.0.0.1/24,20.0.0.1
tag:tag0,option:router,192.168.0.1
tag:tag1,option:dns-server,%s
tag:tag1,option:classless-static-route,%s,%s""".lstrip() % (
fake_v6, fake_v6_cidr, fake_v6)
exp_args = ['cat', '/proc/5/cmdline']
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(),
namespace='qdhcp-ns',
version=float(2.59))
method_name = '_make_subnet_interface_ip_map'
with mock.patch.object(dhcp.Dnsmasq, method_name) as ip_map:
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_opt_name, exp_opt_data)
])
self.execute.assert_called_once_with(exp_args, 'sudo')