883 lines
36 KiB
Python
883 lines
36 KiB
Python
# vim: tabstop=4 shiftwidth=4 softtabstop=4
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#
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# Copyright 2010 OpenStack LLC
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#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import eventlet
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import mox
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import os
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import re
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import sys
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from xml.etree.ElementTree import fromstring as xml_to_tree
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from xml.dom.minidom import parseString as xml_to_dom
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from nova import context
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from nova import db
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from nova import exception
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from nova import flags
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from nova import test
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from nova import utils
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from nova.api.ec2 import cloud
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from nova.auth import manager
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from nova.compute import manager as compute_manager
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from nova.compute import power_state
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from nova.db.sqlalchemy import models
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from nova.virt import libvirt_conn
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libvirt = None
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FLAGS = flags.FLAGS
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flags.DECLARE('instances_path', 'nova.compute.manager')
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def _concurrency(wait, done, target):
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wait.wait()
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done.send()
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class CacheConcurrencyTestCase(test.TestCase):
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def setUp(self):
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super(CacheConcurrencyTestCase, self).setUp()
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def fake_exists(fname):
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basedir = os.path.join(FLAGS.instances_path, '_base')
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if fname == basedir:
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return True
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return False
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def fake_execute(*args, **kwargs):
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pass
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self.stubs.Set(os.path, 'exists', fake_exists)
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self.stubs.Set(utils, 'execute', fake_execute)
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def test_same_fname_concurrency(self):
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"""Ensures that the same fname cache runs at a sequentially"""
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conn = libvirt_conn.LibvirtConnection
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wait1 = eventlet.event.Event()
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done1 = eventlet.event.Event()
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eventlet.spawn(conn._cache_image, _concurrency,
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'target', 'fname', False, wait1, done1)
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wait2 = eventlet.event.Event()
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done2 = eventlet.event.Event()
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eventlet.spawn(conn._cache_image, _concurrency,
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'target', 'fname', False, wait2, done2)
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wait2.send()
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eventlet.sleep(0)
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try:
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self.assertFalse(done2.ready())
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finally:
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wait1.send()
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done1.wait()
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eventlet.sleep(0)
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self.assertTrue(done2.ready())
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def test_different_fname_concurrency(self):
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"""Ensures that two different fname caches are concurrent"""
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conn = libvirt_conn.LibvirtConnection
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wait1 = eventlet.event.Event()
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done1 = eventlet.event.Event()
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eventlet.spawn(conn._cache_image, _concurrency,
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'target', 'fname2', False, wait1, done1)
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wait2 = eventlet.event.Event()
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done2 = eventlet.event.Event()
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eventlet.spawn(conn._cache_image, _concurrency,
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'target', 'fname1', False, wait2, done2)
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wait2.send()
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eventlet.sleep(0)
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try:
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self.assertTrue(done2.ready())
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finally:
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wait1.send()
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eventlet.sleep(0)
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class LibvirtConnTestCase(test.TestCase):
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def setUp(self):
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super(LibvirtConnTestCase, self).setUp()
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libvirt_conn._late_load_cheetah()
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self.flags(fake_call=True)
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self.manager = manager.AuthManager()
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try:
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pjs = self.manager.get_projects()
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pjs = [p for p in pjs if p.name == 'fake']
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if 0 != len(pjs):
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self.manager.delete_project(pjs[0])
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users = self.manager.get_users()
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users = [u for u in users if u.name == 'fake']
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if 0 != len(users):
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self.manager.delete_user(users[0])
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except Exception, e:
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pass
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users = self.manager.get_users()
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self.user = self.manager.create_user('fake', 'fake', 'fake',
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admin=True)
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self.project = self.manager.create_project('fake', 'fake', 'fake')
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self.network = utils.import_object(FLAGS.network_manager)
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self.context = context.get_admin_context()
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FLAGS.instances_path = ''
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self.call_libvirt_dependant_setup = False
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test_ip = '10.11.12.13'
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test_instance = {'memory_kb': '1024000',
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'basepath': '/some/path',
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'bridge_name': 'br100',
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'mac_address': '02:12:34:46:56:67',
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'vcpus': 2,
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'project_id': 'fake',
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'bridge': 'br101',
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'instance_type': 'm1.small'}
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def lazy_load_library_exists(self):
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"""check if libvirt is available."""
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# try to connect libvirt. if fail, skip test.
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try:
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import libvirt
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import libxml2
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except ImportError:
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return False
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global libvirt
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libvirt = __import__('libvirt')
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libvirt_conn.libvirt = __import__('libvirt')
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libvirt_conn.libxml2 = __import__('libxml2')
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return True
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def create_fake_libvirt_mock(self, **kwargs):
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"""Defining mocks for LibvirtConnection(libvirt is not used)."""
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# A fake libvirt.virConnect
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class FakeLibvirtConnection(object):
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pass
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# A fake libvirt_conn.IptablesFirewallDriver
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class FakeIptablesFirewallDriver(object):
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def __init__(self, **kwargs):
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pass
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def setattr(self, key, val):
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self.__setattr__(key, val)
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# Creating mocks
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fake = FakeLibvirtConnection()
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fakeip = FakeIptablesFirewallDriver
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# Customizing above fake if necessary
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for key, val in kwargs.items():
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fake.__setattr__(key, val)
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# Inevitable mocks for libvirt_conn.LibvirtConnection
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self.mox.StubOutWithMock(libvirt_conn.utils, 'import_class')
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libvirt_conn.utils.import_class(mox.IgnoreArg()).AndReturn(fakeip)
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self.mox.StubOutWithMock(libvirt_conn.LibvirtConnection, '_conn')
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libvirt_conn.LibvirtConnection._conn = fake
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def create_service(self, **kwargs):
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service_ref = {'host': kwargs.get('host', 'dummy'),
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'binary': 'nova-compute',
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'topic': 'compute',
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'report_count': 0,
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'availability_zone': 'zone'}
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return db.service_create(context.get_admin_context(), service_ref)
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def test_xml_and_uri_no_ramdisk_no_kernel(self):
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instance_data = dict(self.test_instance)
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self._check_xml_and_uri(instance_data,
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expect_kernel=False, expect_ramdisk=False)
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def test_xml_and_uri_no_ramdisk(self):
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instance_data = dict(self.test_instance)
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instance_data['kernel_id'] = 'aki-deadbeef'
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self._check_xml_and_uri(instance_data,
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expect_kernel=True, expect_ramdisk=False)
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def test_xml_and_uri_no_kernel(self):
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instance_data = dict(self.test_instance)
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instance_data['ramdisk_id'] = 'ari-deadbeef'
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self._check_xml_and_uri(instance_data,
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expect_kernel=False, expect_ramdisk=False)
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def test_xml_and_uri(self):
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instance_data = dict(self.test_instance)
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instance_data['ramdisk_id'] = 'ari-deadbeef'
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instance_data['kernel_id'] = 'aki-deadbeef'
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self._check_xml_and_uri(instance_data,
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expect_kernel=True, expect_ramdisk=True)
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def test_xml_and_uri_rescue(self):
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instance_data = dict(self.test_instance)
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instance_data['ramdisk_id'] = 'ari-deadbeef'
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instance_data['kernel_id'] = 'aki-deadbeef'
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self._check_xml_and_uri(instance_data, expect_kernel=True,
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expect_ramdisk=True, rescue=True)
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def test_lxc_container_and_uri(self):
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instance_data = dict(self.test_instance)
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self._check_xml_and_container(instance_data)
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def _check_xml_and_container(self, instance):
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user_context = context.RequestContext(project=self.project,
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user=self.user)
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instance_ref = db.instance_create(user_context, instance)
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host = self.network.get_network_host(user_context.elevated())
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network_ref = db.project_get_network(context.get_admin_context(),
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self.project.id)
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fixed_ip = {'address': self.test_ip,
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'network_id': network_ref['id']}
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ctxt = context.get_admin_context()
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fixed_ip_ref = db.fixed_ip_create(ctxt, fixed_ip)
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db.fixed_ip_update(ctxt, self.test_ip,
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{'allocated': True,
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'instance_id': instance_ref['id']})
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self.flags(libvirt_type='lxc')
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conn = libvirt_conn.LibvirtConnection(True)
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uri = conn.get_uri()
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self.assertEquals(uri, 'lxc:///')
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xml = conn.to_xml(instance_ref)
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tree = xml_to_tree(xml)
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check = [
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(lambda t: t.find('.').get('type'), 'lxc'),
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(lambda t: t.find('./os/type').text, 'exe'),
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(lambda t: t.find('./devices/filesystem/target').get('dir'), '/')]
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for i, (check, expected_result) in enumerate(check):
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self.assertEqual(check(tree),
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expected_result,
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'%s failed common check %d' % (xml, i))
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target = tree.find('./devices/filesystem/source').get('dir')
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self.assertTrue(len(target) > 0)
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def _check_xml_and_uri(self, instance, expect_ramdisk, expect_kernel,
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rescue=False):
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user_context = context.RequestContext(project=self.project,
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user=self.user)
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instance_ref = db.instance_create(user_context, instance)
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host = self.network.get_network_host(user_context.elevated())
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network_ref = db.project_get_network(context.get_admin_context(),
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self.project.id)
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fixed_ip = {'address': self.test_ip,
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'network_id': network_ref['id']}
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ctxt = context.get_admin_context()
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fixed_ip_ref = db.fixed_ip_create(ctxt, fixed_ip)
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db.fixed_ip_update(ctxt, self.test_ip,
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{'allocated': True,
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'instance_id': instance_ref['id']})
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type_uri_map = {'qemu': ('qemu:///system',
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[(lambda t: t.find('.').get('type'), 'qemu'),
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(lambda t: t.find('./os/type').text, 'hvm'),
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(lambda t: t.find('./devices/emulator'), None)]),
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'kvm': ('qemu:///system',
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[(lambda t: t.find('.').get('type'), 'kvm'),
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(lambda t: t.find('./os/type').text, 'hvm'),
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(lambda t: t.find('./devices/emulator'), None)]),
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'uml': ('uml:///system',
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[(lambda t: t.find('.').get('type'), 'uml'),
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(lambda t: t.find('./os/type').text, 'uml')]),
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'xen': ('xen:///',
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[(lambda t: t.find('.').get('type'), 'xen'),
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(lambda t: t.find('./os/type').text, 'linux')]),
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}
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for hypervisor_type in ['qemu', 'kvm', 'xen']:
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check_list = type_uri_map[hypervisor_type][1]
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if rescue:
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check = (lambda t: t.find('./os/kernel').text.split('/')[1],
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'kernel.rescue')
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check_list.append(check)
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check = (lambda t: t.find('./os/initrd').text.split('/')[1],
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'ramdisk.rescue')
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check_list.append(check)
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else:
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if expect_kernel:
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check = (lambda t: t.find('./os/kernel').text.split(
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'/')[1], 'kernel')
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else:
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check = (lambda t: t.find('./os/kernel'), None)
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check_list.append(check)
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if expect_ramdisk:
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check = (lambda t: t.find('./os/initrd').text.split(
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'/')[1], 'ramdisk')
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else:
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check = (lambda t: t.find('./os/initrd'), None)
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check_list.append(check)
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common_checks = [
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(lambda t: t.find('.').tag, 'domain'),
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(lambda t: t.find(
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'./devices/interface/filterref/parameter').get('name'), 'IP'),
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(lambda t: t.find(
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'./devices/interface/filterref/parameter').get(
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'value'), '10.11.12.13'),
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(lambda t: t.findall(
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'./devices/interface/filterref/parameter')[1].get(
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'name'), 'DHCPSERVER'),
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(lambda t: t.findall(
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'./devices/interface/filterref/parameter')[1].get(
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'value'), '10.0.0.1'),
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(lambda t: t.find('./devices/serial/source').get(
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'path').split('/')[1], 'console.log'),
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(lambda t: t.find('./memory').text, '2097152')]
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if rescue:
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common_checks += [
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(lambda t: t.findall('./devices/disk/source')[0].get(
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'file').split('/')[1], 'disk.rescue'),
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(lambda t: t.findall('./devices/disk/source')[1].get(
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'file').split('/')[1], 'disk')]
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else:
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common_checks += [(lambda t: t.findall(
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'./devices/disk/source')[0].get('file').split('/')[1],
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'disk')]
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common_checks += [(lambda t: t.findall(
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'./devices/disk/source')[1].get('file').split('/')[1],
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'disk.local')]
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for (libvirt_type, (expected_uri, checks)) in type_uri_map.iteritems():
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FLAGS.libvirt_type = libvirt_type
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conn = libvirt_conn.LibvirtConnection(True)
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uri = conn.get_uri()
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self.assertEquals(uri, expected_uri)
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xml = conn.to_xml(instance_ref, rescue)
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tree = xml_to_tree(xml)
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for i, (check, expected_result) in enumerate(checks):
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self.assertEqual(check(tree),
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expected_result,
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'%s failed check %d' % (xml, i))
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for i, (check, expected_result) in enumerate(common_checks):
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self.assertEqual(check(tree),
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expected_result,
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'%s failed common check %d' % (xml, i))
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# This test is supposed to make sure we don't
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# override a specifically set uri
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#
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# Deliberately not just assigning this string to FLAGS.libvirt_uri and
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# checking against that later on. This way we make sure the
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# implementation doesn't fiddle around with the FLAGS.
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testuri = 'something completely different'
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FLAGS.libvirt_uri = testuri
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for (libvirt_type, (expected_uri, checks)) in type_uri_map.iteritems():
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FLAGS.libvirt_type = libvirt_type
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conn = libvirt_conn.LibvirtConnection(True)
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uri = conn.get_uri()
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self.assertEquals(uri, testuri)
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db.instance_destroy(user_context, instance_ref['id'])
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def test_update_available_resource_works_correctly(self):
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"""Confirm compute_node table is updated successfully."""
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org_path = FLAGS.instances_path = ''
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FLAGS.instances_path = '.'
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# Prepare mocks
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def getVersion():
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return 12003
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def getType():
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return 'qemu'
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def listDomainsID():
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return []
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service_ref = self.create_service(host='dummy')
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self.create_fake_libvirt_mock(getVersion=getVersion,
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getType=getType,
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listDomainsID=listDomainsID)
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self.mox.StubOutWithMock(libvirt_conn.LibvirtConnection,
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'get_cpu_info')
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libvirt_conn.LibvirtConnection.get_cpu_info().AndReturn('cpuinfo')
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# Start test
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self.mox.ReplayAll()
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conn = libvirt_conn.LibvirtConnection(False)
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conn.update_available_resource(self.context, 'dummy')
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service_ref = db.service_get(self.context, service_ref['id'])
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compute_node = service_ref['compute_node'][0]
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if sys.platform.upper() == 'LINUX2':
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self.assertTrue(compute_node['vcpus'] >= 0)
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self.assertTrue(compute_node['memory_mb'] > 0)
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self.assertTrue(compute_node['local_gb'] > 0)
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self.assertTrue(compute_node['vcpus_used'] == 0)
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self.assertTrue(compute_node['memory_mb_used'] > 0)
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self.assertTrue(compute_node['local_gb_used'] > 0)
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self.assertTrue(len(compute_node['hypervisor_type']) > 0)
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self.assertTrue(compute_node['hypervisor_version'] > 0)
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else:
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self.assertTrue(compute_node['vcpus'] >= 0)
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self.assertTrue(compute_node['memory_mb'] == 0)
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self.assertTrue(compute_node['local_gb'] > 0)
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self.assertTrue(compute_node['vcpus_used'] == 0)
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self.assertTrue(compute_node['memory_mb_used'] == 0)
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self.assertTrue(compute_node['local_gb_used'] > 0)
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self.assertTrue(len(compute_node['hypervisor_type']) > 0)
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self.assertTrue(compute_node['hypervisor_version'] > 0)
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db.service_destroy(self.context, service_ref['id'])
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FLAGS.instances_path = org_path
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def test_update_resource_info_no_compute_record_found(self):
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"""Raise exception if no recorde found on services table."""
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org_path = FLAGS.instances_path = ''
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FLAGS.instances_path = '.'
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self.create_fake_libvirt_mock()
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self.mox.ReplayAll()
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conn = libvirt_conn.LibvirtConnection(False)
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self.assertRaises(exception.Invalid,
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conn.update_available_resource,
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self.context, 'dummy')
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FLAGS.instances_path = org_path
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def test_ensure_filtering_rules_for_instance_timeout(self):
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"""ensure_filtering_fules_for_instance() finishes with timeout."""
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# Skip if non-libvirt environment
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if not self.lazy_load_library_exists():
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return
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# Preparing mocks
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def fake_none(self):
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return
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def fake_raise(self):
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raise libvirt.libvirtError('ERR')
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class FakeTime(object):
|
|
def __init__(self):
|
|
self.counter = 0
|
|
|
|
def sleep(self, t):
|
|
self.counter += t
|
|
|
|
fake_timer = FakeTime()
|
|
|
|
self.create_fake_libvirt_mock(nwfilterLookupByName=fake_raise)
|
|
instance_ref = db.instance_create(self.context, self.test_instance)
|
|
|
|
# Start test
|
|
self.mox.ReplayAll()
|
|
try:
|
|
conn = libvirt_conn.LibvirtConnection(False)
|
|
conn.firewall_driver.setattr('setup_basic_filtering', fake_none)
|
|
conn.firewall_driver.setattr('prepare_instance_filter', fake_none)
|
|
conn.ensure_filtering_rules_for_instance(instance_ref,
|
|
time=fake_timer)
|
|
except exception.Error, e:
|
|
c1 = (0 <= e.message.find('Timeout migrating for'))
|
|
self.assertTrue(c1)
|
|
|
|
self.assertEqual(29, fake_timer.counter, "Didn't wait the expected "
|
|
"amount of time")
|
|
|
|
db.instance_destroy(self.context, instance_ref['id'])
|
|
|
|
def test_live_migration_raises_exception(self):
|
|
"""Confirms recover method is called when exceptions are raised."""
|
|
# Skip if non-libvirt environment
|
|
if not self.lazy_load_library_exists():
|
|
return
|
|
|
|
# Preparing data
|
|
self.compute = utils.import_object(FLAGS.compute_manager)
|
|
instance_dict = {'host': 'fake', 'state': power_state.RUNNING,
|
|
'state_description': 'running'}
|
|
instance_ref = db.instance_create(self.context, self.test_instance)
|
|
instance_ref = db.instance_update(self.context, instance_ref['id'],
|
|
instance_dict)
|
|
vol_dict = {'status': 'migrating', 'size': 1}
|
|
volume_ref = db.volume_create(self.context, vol_dict)
|
|
db.volume_attached(self.context, volume_ref['id'], instance_ref['id'],
|
|
'/dev/fake')
|
|
|
|
# Preparing mocks
|
|
vdmock = self.mox.CreateMock(libvirt.virDomain)
|
|
self.mox.StubOutWithMock(vdmock, "migrateToURI")
|
|
vdmock.migrateToURI(FLAGS.live_migration_uri % 'dest',
|
|
mox.IgnoreArg(),
|
|
None, FLAGS.live_migration_bandwidth).\
|
|
AndRaise(libvirt.libvirtError('ERR'))
|
|
|
|
def fake_lookup(instance_name):
|
|
if instance_name == instance_ref.name:
|
|
return vdmock
|
|
|
|
self.create_fake_libvirt_mock(lookupByName=fake_lookup)
|
|
|
|
# Start test
|
|
self.mox.ReplayAll()
|
|
conn = libvirt_conn.LibvirtConnection(False)
|
|
self.assertRaises(libvirt.libvirtError,
|
|
conn._live_migration,
|
|
self.context, instance_ref, 'dest', '',
|
|
self.compute.recover_live_migration)
|
|
|
|
instance_ref = db.instance_get(self.context, instance_ref['id'])
|
|
self.assertTrue(instance_ref['state_description'] == 'running')
|
|
self.assertTrue(instance_ref['state'] == power_state.RUNNING)
|
|
volume_ref = db.volume_get(self.context, volume_ref['id'])
|
|
self.assertTrue(volume_ref['status'] == 'in-use')
|
|
|
|
db.volume_destroy(self.context, volume_ref['id'])
|
|
db.instance_destroy(self.context, instance_ref['id'])
|
|
|
|
def tearDown(self):
|
|
self.manager.delete_project(self.project)
|
|
self.manager.delete_user(self.user)
|
|
super(LibvirtConnTestCase, self).tearDown()
|
|
|
|
|
|
class IptablesFirewallTestCase(test.TestCase):
|
|
def setUp(self):
|
|
super(IptablesFirewallTestCase, self).setUp()
|
|
|
|
self.manager = manager.AuthManager()
|
|
self.user = self.manager.create_user('fake', 'fake', 'fake',
|
|
admin=True)
|
|
self.project = self.manager.create_project('fake', 'fake', 'fake')
|
|
self.context = context.RequestContext('fake', 'fake')
|
|
self.network = utils.import_object(FLAGS.network_manager)
|
|
|
|
class FakeLibvirtConnection(object):
|
|
pass
|
|
self.fake_libvirt_connection = FakeLibvirtConnection()
|
|
self.fw = libvirt_conn.IptablesFirewallDriver(
|
|
get_connection=lambda: self.fake_libvirt_connection)
|
|
|
|
def tearDown(self):
|
|
self.manager.delete_project(self.project)
|
|
self.manager.delete_user(self.user)
|
|
super(IptablesFirewallTestCase, self).tearDown()
|
|
|
|
in_nat_rules = [
|
|
'# Generated by iptables-save v1.4.10 on Sat Feb 19 00:03:19 2011',
|
|
'*nat',
|
|
':PREROUTING ACCEPT [1170:189210]',
|
|
':INPUT ACCEPT [844:71028]',
|
|
':OUTPUT ACCEPT [5149:405186]',
|
|
':POSTROUTING ACCEPT [5063:386098]',
|
|
]
|
|
|
|
in_filter_rules = [
|
|
'# Generated by iptables-save v1.4.4 on Mon Dec 6 11:54:13 2010',
|
|
'*filter',
|
|
':INPUT ACCEPT [969615:281627771]',
|
|
':FORWARD ACCEPT [0:0]',
|
|
':OUTPUT ACCEPT [915599:63811649]',
|
|
':nova-block-ipv4 - [0:0]',
|
|
'-A INPUT -i virbr0 -p tcp -m tcp --dport 67 -j ACCEPT ',
|
|
'-A FORWARD -d 192.168.122.0/24 -o virbr0 -m state --state RELATED'
|
|
',ESTABLISHED -j ACCEPT ',
|
|
'-A FORWARD -s 192.168.122.0/24 -i virbr0 -j ACCEPT ',
|
|
'-A FORWARD -i virbr0 -o virbr0 -j ACCEPT ',
|
|
'-A FORWARD -o virbr0 -j REJECT --reject-with icmp-port-unreachable ',
|
|
'-A FORWARD -i virbr0 -j REJECT --reject-with icmp-port-unreachable ',
|
|
'COMMIT',
|
|
'# Completed on Mon Dec 6 11:54:13 2010',
|
|
]
|
|
|
|
in6_filter_rules = [
|
|
'# Generated by ip6tables-save v1.4.4 on Tue Jan 18 23:47:56 2011',
|
|
'*filter',
|
|
':INPUT ACCEPT [349155:75810423]',
|
|
':FORWARD ACCEPT [0:0]',
|
|
':OUTPUT ACCEPT [349256:75777230]',
|
|
'COMMIT',
|
|
'# Completed on Tue Jan 18 23:47:56 2011',
|
|
]
|
|
|
|
def test_static_filters(self):
|
|
instance_ref = db.instance_create(self.context,
|
|
{'user_id': 'fake',
|
|
'project_id': 'fake',
|
|
'mac_address': '56:12:12:12:12:12'})
|
|
ip = '10.11.12.13'
|
|
|
|
network_ref = db.project_get_network(self.context,
|
|
'fake')
|
|
|
|
fixed_ip = {'address': ip,
|
|
'network_id': network_ref['id']}
|
|
|
|
admin_ctxt = context.get_admin_context()
|
|
db.fixed_ip_create(admin_ctxt, fixed_ip)
|
|
db.fixed_ip_update(admin_ctxt, ip, {'allocated': True,
|
|
'instance_id': instance_ref['id']})
|
|
|
|
secgroup = db.security_group_create(admin_ctxt,
|
|
{'user_id': 'fake',
|
|
'project_id': 'fake',
|
|
'name': 'testgroup',
|
|
'description': 'test group'})
|
|
|
|
db.security_group_rule_create(admin_ctxt,
|
|
{'parent_group_id': secgroup['id'],
|
|
'protocol': 'icmp',
|
|
'from_port': -1,
|
|
'to_port': -1,
|
|
'cidr': '192.168.11.0/24'})
|
|
|
|
db.security_group_rule_create(admin_ctxt,
|
|
{'parent_group_id': secgroup['id'],
|
|
'protocol': 'icmp',
|
|
'from_port': 8,
|
|
'to_port': -1,
|
|
'cidr': '192.168.11.0/24'})
|
|
|
|
db.security_group_rule_create(admin_ctxt,
|
|
{'parent_group_id': secgroup['id'],
|
|
'protocol': 'tcp',
|
|
'from_port': 80,
|
|
'to_port': 81,
|
|
'cidr': '192.168.10.0/24'})
|
|
|
|
db.instance_add_security_group(admin_ctxt, instance_ref['id'],
|
|
secgroup['id'])
|
|
instance_ref = db.instance_get(admin_ctxt, instance_ref['id'])
|
|
|
|
# self.fw.add_instance(instance_ref)
|
|
def fake_iptables_execute(*cmd, **kwargs):
|
|
process_input = kwargs.get('process_input', None)
|
|
if cmd == ('sudo', 'ip6tables-save', '-t', 'filter'):
|
|
return '\n'.join(self.in6_filter_rules), None
|
|
if cmd == ('sudo', 'iptables-save', '-t', 'filter'):
|
|
return '\n'.join(self.in_filter_rules), None
|
|
if cmd == ('sudo', 'iptables-save', '-t', 'nat'):
|
|
return '\n'.join(self.in_nat_rules), None
|
|
if cmd == ('sudo', 'iptables-restore'):
|
|
lines = process_input.split('\n')
|
|
if '*filter' in lines:
|
|
self.out_rules = lines
|
|
return '', ''
|
|
if cmd == ('sudo', 'ip6tables-restore'):
|
|
lines = process_input.split('\n')
|
|
if '*filter' in lines:
|
|
self.out6_rules = lines
|
|
return '', ''
|
|
print cmd, kwargs
|
|
|
|
from nova.network import linux_net
|
|
linux_net.iptables_manager.execute = fake_iptables_execute
|
|
|
|
self.fw.prepare_instance_filter(instance_ref)
|
|
self.fw.apply_instance_filter(instance_ref)
|
|
|
|
in_rules = filter(lambda l: not l.startswith('#'),
|
|
self.in_filter_rules)
|
|
for rule in in_rules:
|
|
if not 'nova' in rule:
|
|
self.assertTrue(rule in self.out_rules,
|
|
'Rule went missing: %s' % rule)
|
|
|
|
instance_chain = None
|
|
for rule in self.out_rules:
|
|
# This is pretty crude, but it'll do for now
|
|
if '-d 10.11.12.13 -j' in rule:
|
|
instance_chain = rule.split(' ')[-1]
|
|
break
|
|
self.assertTrue(instance_chain, "The instance chain wasn't added")
|
|
|
|
security_group_chain = None
|
|
for rule in self.out_rules:
|
|
# This is pretty crude, but it'll do for now
|
|
if '-A %s -j' % instance_chain in rule:
|
|
security_group_chain = rule.split(' ')[-1]
|
|
break
|
|
self.assertTrue(security_group_chain,
|
|
"The security group chain wasn't added")
|
|
|
|
regex = re.compile('-A .* -p icmp -s 192.168.11.0/24 -j ACCEPT')
|
|
self.assertTrue(len(filter(regex.match, self.out_rules)) > 0,
|
|
"ICMP acceptance rule wasn't added")
|
|
|
|
regex = re.compile('-A .* -p icmp -s 192.168.11.0/24 -m icmp '
|
|
'--icmp-type 8 -j ACCEPT')
|
|
self.assertTrue(len(filter(regex.match, self.out_rules)) > 0,
|
|
"ICMP Echo Request acceptance rule wasn't added")
|
|
|
|
regex = re.compile('-A .* -p tcp -s 192.168.10.0/24 -m multiport '
|
|
'--dports 80:81 -j ACCEPT')
|
|
self.assertTrue(len(filter(regex.match, self.out_rules)) > 0,
|
|
"TCP port 80/81 acceptance rule wasn't added")
|
|
db.instance_destroy(admin_ctxt, instance_ref['id'])
|
|
|
|
|
|
class NWFilterTestCase(test.TestCase):
|
|
def setUp(self):
|
|
super(NWFilterTestCase, self).setUp()
|
|
|
|
class Mock(object):
|
|
pass
|
|
|
|
self.manager = manager.AuthManager()
|
|
self.user = self.manager.create_user('fake', 'fake', 'fake',
|
|
admin=True)
|
|
self.project = self.manager.create_project('fake', 'fake', 'fake')
|
|
self.context = context.RequestContext(self.user, self.project)
|
|
|
|
self.fake_libvirt_connection = Mock()
|
|
|
|
self.fw = libvirt_conn.NWFilterFirewall(
|
|
lambda: self.fake_libvirt_connection)
|
|
|
|
def tearDown(self):
|
|
self.manager.delete_project(self.project)
|
|
self.manager.delete_user(self.user)
|
|
super(NWFilterTestCase, self).tearDown()
|
|
|
|
def test_cidr_rule_nwfilter_xml(self):
|
|
cloud_controller = cloud.CloudController()
|
|
cloud_controller.create_security_group(self.context,
|
|
'testgroup',
|
|
'test group description')
|
|
cloud_controller.authorize_security_group_ingress(self.context,
|
|
'testgroup',
|
|
from_port='80',
|
|
to_port='81',
|
|
ip_protocol='tcp',
|
|
cidr_ip='0.0.0.0/0')
|
|
|
|
security_group = db.security_group_get_by_name(self.context,
|
|
'fake',
|
|
'testgroup')
|
|
|
|
xml = self.fw.security_group_to_nwfilter_xml(security_group.id)
|
|
|
|
dom = xml_to_dom(xml)
|
|
self.assertEqual(dom.firstChild.tagName, 'filter')
|
|
|
|
rules = dom.getElementsByTagName('rule')
|
|
self.assertEqual(len(rules), 1)
|
|
|
|
# It's supposed to allow inbound traffic.
|
|
self.assertEqual(rules[0].getAttribute('action'), 'accept')
|
|
self.assertEqual(rules[0].getAttribute('direction'), 'in')
|
|
|
|
# Must be lower priority than the base filter (which blocks everything)
|
|
self.assertTrue(int(rules[0].getAttribute('priority')) < 1000)
|
|
|
|
ip_conditions = rules[0].getElementsByTagName('tcp')
|
|
self.assertEqual(len(ip_conditions), 1)
|
|
self.assertEqual(ip_conditions[0].getAttribute('srcipaddr'), '0.0.0.0')
|
|
self.assertEqual(ip_conditions[0].getAttribute('srcipmask'), '0.0.0.0')
|
|
self.assertEqual(ip_conditions[0].getAttribute('dstportstart'), '80')
|
|
self.assertEqual(ip_conditions[0].getAttribute('dstportend'), '81')
|
|
self.teardown_security_group()
|
|
|
|
def teardown_security_group(self):
|
|
cloud_controller = cloud.CloudController()
|
|
cloud_controller.delete_security_group(self.context, 'testgroup')
|
|
|
|
def setup_and_return_security_group(self):
|
|
cloud_controller = cloud.CloudController()
|
|
cloud_controller.create_security_group(self.context,
|
|
'testgroup',
|
|
'test group description')
|
|
cloud_controller.authorize_security_group_ingress(self.context,
|
|
'testgroup',
|
|
from_port='80',
|
|
to_port='81',
|
|
ip_protocol='tcp',
|
|
cidr_ip='0.0.0.0/0')
|
|
|
|
return db.security_group_get_by_name(self.context, 'fake', 'testgroup')
|
|
|
|
def test_creates_base_rule_first(self):
|
|
# These come pre-defined by libvirt
|
|
self.defined_filters = ['no-mac-spoofing',
|
|
'no-ip-spoofing',
|
|
'no-arp-spoofing',
|
|
'allow-dhcp-server']
|
|
|
|
self.recursive_depends = {}
|
|
for f in self.defined_filters:
|
|
self.recursive_depends[f] = []
|
|
|
|
def _filterDefineXMLMock(xml):
|
|
dom = xml_to_dom(xml)
|
|
name = dom.firstChild.getAttribute('name')
|
|
self.recursive_depends[name] = []
|
|
for f in dom.getElementsByTagName('filterref'):
|
|
ref = f.getAttribute('filter')
|
|
self.assertTrue(ref in self.defined_filters,
|
|
('%s referenced filter that does ' +
|
|
'not yet exist: %s') % (name, ref))
|
|
dependencies = [ref] + self.recursive_depends[ref]
|
|
self.recursive_depends[name] += dependencies
|
|
|
|
self.defined_filters.append(name)
|
|
return True
|
|
|
|
self.fake_libvirt_connection.nwfilterDefineXML = _filterDefineXMLMock
|
|
|
|
instance_ref = db.instance_create(self.context,
|
|
{'user_id': 'fake',
|
|
'project_id': 'fake',
|
|
'mac_address': '00:A0:C9:14:C8:29'})
|
|
inst_id = instance_ref['id']
|
|
|
|
ip = '10.11.12.13'
|
|
|
|
network_ref = db.project_get_network(self.context,
|
|
'fake')
|
|
|
|
fixed_ip = {'address': ip,
|
|
'network_id': network_ref['id']}
|
|
|
|
admin_ctxt = context.get_admin_context()
|
|
db.fixed_ip_create(admin_ctxt, fixed_ip)
|
|
db.fixed_ip_update(admin_ctxt, ip, {'allocated': True,
|
|
'instance_id': instance_ref['id']})
|
|
|
|
def _ensure_all_called():
|
|
instance_filter = 'nova-instance-%s-%s' % (instance_ref['name'],
|
|
'00A0C914C829')
|
|
secgroup_filter = 'nova-secgroup-%s' % self.security_group['id']
|
|
for required in [secgroup_filter, 'allow-dhcp-server',
|
|
'no-arp-spoofing', 'no-ip-spoofing',
|
|
'no-mac-spoofing']:
|
|
self.assertTrue(required in
|
|
self.recursive_depends[instance_filter],
|
|
"Instance's filter does not include %s" %
|
|
required)
|
|
|
|
self.security_group = self.setup_and_return_security_group()
|
|
|
|
db.instance_add_security_group(self.context, inst_id,
|
|
self.security_group.id)
|
|
instance = db.instance_get(self.context, inst_id)
|
|
|
|
self.fw.setup_basic_filtering(instance)
|
|
self.fw.prepare_instance_filter(instance)
|
|
self.fw.apply_instance_filter(instance)
|
|
_ensure_all_called()
|
|
self.teardown_security_group()
|
|
db.instance_destroy(admin_ctxt, instance_ref['id'])
|