14c636469f
Avoid conflict on listening port ("Address already in use" error).
Send SIGTERM until all instances of dnsmasq exit.
452 lines
18 KiB
Python
452 lines
18 KiB
Python
#
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# The Qubes OS Project, https://www.qubes-os.org/
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#
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# Copyright (C) 2015-2020
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# Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
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# Copyright (C) 2015 Wojtek Porczyk <woju@invisiblethingslab.com>
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2.1 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, see <https://www.gnu.org/licenses/>.
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#
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import asyncio
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import subprocess
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import sys
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import time
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import unittest
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from distutils import spawn
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import qubes.firewall
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import qubes.tests
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import qubes.vm
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from qubes.tests.integ.network import VmNetworkingMixin
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# noinspection PyAttributeOutsideInit,PyPep8Naming
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class VmIPv6NetworkingMixin(VmNetworkingMixin):
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test_ip6 = '2000:abcd::1'
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ping6_cmd = 'ping6 -W 1 -n -c 1 {target}'
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def setUp(self):
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super(VmIPv6NetworkingMixin, self).setUp()
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self.ping6_ip = self.ping6_cmd.format(target=self.test_ip6)
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self.ping6_name = self.ping6_cmd.format(target=self.test_name)
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def tearDown(self):
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# collect more info on failure (ipv4 info collected in parent)
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if self._outcome and not self._outcome.success:
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for vm in (self.testnetvm, self.testvm1, getattr(self, 'proxy', None)):
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if vm is None:
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continue
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self._run_cmd_and_log_output(vm, 'ip -6 r')
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self._run_cmd_and_log_output(vm, 'ip6tables -vnL')
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self._run_cmd_and_log_output(vm, 'ip6tables -vnL -t nat')
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self._run_cmd_and_log_output(vm, 'nft list table ip6 qubes-firewall')
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super().tearDown()
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def configure_netvm(self):
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'''
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.testnetvm.features['ipv6'] = True
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super(VmIPv6NetworkingMixin, self).configure_netvm()
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def run_netvm_cmd(cmd):
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try:
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self.loop.run_until_complete(
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self.testnetvm.run_for_stdio(cmd, user='root'))
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except subprocess.CalledProcessError as e:
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self.fail("Command '%s' failed: %s%s" %
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(cmd, e.stdout.decode(), e.stderr.decode()))
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run_netvm_cmd("ip addr add {}/128 dev test0".format(self.test_ip6))
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run_netvm_cmd(
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"ip6tables -I INPUT -d {} -j ACCEPT".format(self.test_ip6))
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# ignore failure
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self.run_cmd(self.testnetvm, "while pkill dnsmasq; do sleep 1; done")
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run_netvm_cmd(
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"dnsmasq -a {ip} -A /{name}/{ip} -A /{name}/{ip6} -i test0 -z".
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format(ip=self.test_ip, ip6=self.test_ip6, name=self.test_name))
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def test_500_ipv6_simple_networking(self):
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'''
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.loop.run_until_complete(self.testvm1.start())
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0)
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_name), 0)
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def test_510_ipv6_simple_proxyvm(self):
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'''
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.proxy = self.app.add_new_vm(qubes.vm.appvm.AppVM,
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name=self.make_vm_name('proxy'),
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label='red')
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self.proxy.provides_network = True
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self.proxy.netvm = self.testnetvm
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self.loop.run_until_complete(self.proxy.create_on_disk())
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self.testvm1.netvm = self.proxy
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self.app.save()
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self.loop.run_until_complete(self.testvm1.start())
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self.assertTrue(self.proxy.is_running())
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self.assertEqual(self.run_cmd(self.proxy, self.ping6_ip), 0,
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"Ping by IP from ProxyVM failed")
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self.assertEqual(self.run_cmd(self.proxy, self.ping6_name), 0,
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"Ping by name from ProxyVM failed")
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0,
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"Ping by IP from AppVM failed")
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_name), 0,
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"Ping by IP from AppVM failed")
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@qubes.tests.expectedFailureIfTemplate('debian-7')
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@unittest.skipUnless(spawn.find_executable('xdotool'),
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"xdotool not installed")
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def test_520_ipv6_simple_proxyvm_nm(self):
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'''
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.proxy = self.app.add_new_vm(qubes.vm.appvm.AppVM,
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name=self.make_vm_name('proxy'),
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label='red')
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self.proxy.provides_network = True
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self.loop.run_until_complete(self.proxy.create_on_disk())
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self.proxy.netvm = self.testnetvm
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self.proxy.features['service.network-manager'] = True
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self.testvm1.netvm = self.proxy
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self.app.save()
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self.loop.run_until_complete(self.testvm1.start())
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self.assertTrue(self.proxy.is_running())
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0,
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"Ping by IP failed")
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_name), 0,
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"Ping by name failed")
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# reconnect to make sure that device was configured by NM
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self.assertEqual(
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self.run_cmd(self.proxy, "nmcli device disconnect eth0",
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user="user"),
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0, "Failed to disconnect eth0 using nmcli")
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self.assertNotEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0,
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"Network should be disabled, but apparently it isn't")
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self.assertEqual(
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self.run_cmd(self.proxy,
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'nmcli connection up "VM uplink eth0" ifname eth0',
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user="user"),
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0, "Failed to connect eth0 using nmcli")
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self.assertEqual(self.run_cmd(self.proxy, "nm-online",
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user="user"), 0,
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"Failed to wait for NM connection")
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# wait for duplicate-address-detection to complete - by default it has
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# 1s timeout
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time.sleep(2)
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# check for nm-applet presence
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self.assertEqual(subprocess.call([
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'xdotool', 'search', '--class', '{}:nm-applet'.format(
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self.proxy.name)],
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stdout=subprocess.DEVNULL), 0, "nm-applet window not found")
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0,
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"Ping by IP failed (after NM reconnection")
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_name), 0,
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"Ping by name failed (after NM reconnection)")
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def test_530_ipv6_firewallvm_firewall(self):
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'''
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.proxy = self.app.add_new_vm(qubes.vm.appvm.AppVM,
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name=self.make_vm_name('proxy'),
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label='red')
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self.proxy.provides_network = True
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self.loop.run_until_complete(self.proxy.create_on_disk())
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self.proxy.netvm = self.testnetvm
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self.testvm1.netvm = self.proxy
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self.app.save()
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# block all for first
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self.testvm1.firewall.rules = [qubes.firewall.Rule(action='drop')]
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self.testvm1.firewall.save()
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self.loop.run_until_complete(self.testvm1.start())
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self.assertTrue(self.proxy.is_running())
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server = self.loop.run_until_complete(self.testnetvm.run(
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'socat TCP6-LISTEN:1234,fork EXEC:/bin/uname'))
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try:
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self.assertEqual(self.run_cmd(self.proxy, self.ping6_ip), 0,
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"Ping by IP from ProxyVM failed")
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self.assertEqual(self.run_cmd(self.proxy, self.ping6_name), 0,
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"Ping by name from ProxyVM failed")
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self.assertNotEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0,
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"Ping by IP should be blocked")
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client6_cmd = "socat TCP:[{}]:1234 -".format(self.test_ip6)
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client4_cmd = "socat TCP:{}:1234 -".format(self.test_ip)
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self.assertNotEqual(self.run_cmd(self.testvm1, client6_cmd), 0,
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"TCP connection should be blocked")
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# block all except ICMP
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self.testvm1.firewall.rules = [(
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qubes.firewall.Rule(None, action='accept', proto='icmp')
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)]
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self.testvm1.firewall.save()
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# Ugly hack b/c there is no feedback when the rules are actually
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# applied
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time.sleep(3)
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0,
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"Ping by IP failed (should be allowed now)")
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self.assertNotEqual(self.run_cmd(self.testvm1, self.ping6_name), 0,
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"Ping by name should be blocked")
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# all TCP still blocked
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self.testvm1.firewall.rules = [
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qubes.firewall.Rule(None, action='accept', proto='icmp'),
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qubes.firewall.Rule(None, action='accept', specialtarget='dns'),
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]
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self.testvm1.firewall.save()
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# Ugly hack b/c there is no feedback when the rules are actually
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# applied
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time.sleep(3)
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_name), 0,
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"Ping by name failed (should be allowed now)")
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self.assertNotEqual(self.run_cmd(self.testvm1, client6_cmd), 0,
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"TCP connection should be blocked")
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# block all except target
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self.testvm1.firewall.rules = [
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qubes.firewall.Rule(None, action='accept',
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dsthost=self.test_ip6,
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proto='tcp', dstports=1234),
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]
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self.testvm1.firewall.save()
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# Ugly hack b/c there is no feedback when the rules are actually
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# applied
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time.sleep(3)
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self.assertEqual(self.run_cmd(self.testvm1, client6_cmd), 0,
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"TCP connection failed (should be allowed now)")
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# block all except target - by name
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self.testvm1.firewall.rules = [
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qubes.firewall.Rule(None, action='accept',
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dsthost=self.test_name,
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proto='tcp', dstports=1234),
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]
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self.testvm1.firewall.save()
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# Ugly hack b/c there is no feedback when the rules are actually
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# applied
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time.sleep(3)
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self.assertEqual(self.run_cmd(self.testvm1, client6_cmd), 0,
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"TCP (IPv6) connection failed (should be allowed now)")
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self.assertEqual(self.run_cmd(self.testvm1, client4_cmd),
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0,
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"TCP (IPv4) connection failed (should be allowed now)")
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# allow all except target
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self.testvm1.firewall.rules = [
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qubes.firewall.Rule(None, action='drop', dsthost=self.test_ip6,
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proto='tcp', dstports=1234),
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qubes.firewall.Rule(action='accept'),
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]
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self.testvm1.firewall.save()
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# Ugly hack b/c there is no feedback when the rules are actually
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# applied
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time.sleep(3)
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self.assertNotEqual(self.run_cmd(self.testvm1, client6_cmd), 0,
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"TCP connection should be blocked")
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finally:
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server.terminate()
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self.loop.run_until_complete(server.wait())
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def test_540_ipv6_inter_vm(self):
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'''
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.proxy = self.app.add_new_vm(qubes.vm.appvm.AppVM,
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name=self.make_vm_name('proxy'),
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label='red')
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self.loop.run_until_complete(self.proxy.create_on_disk())
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self.proxy.provides_network = True
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self.proxy.netvm = self.testnetvm
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self.testvm1.netvm = self.proxy
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self.testvm2 = self.app.add_new_vm(qubes.vm.appvm.AppVM,
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name=self.make_vm_name('vm2'),
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label='red')
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self.loop.run_until_complete(self.testvm2.create_on_disk())
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self.testvm2.netvm = self.proxy
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self.app.save()
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self.loop.run_until_complete(asyncio.gather(
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self.testvm1.start(),
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self.testvm2.start()))
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self.assertNotEqual(self.run_cmd(self.testvm1,
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self.ping_cmd.format(target=self.testvm2.ip6)), 0)
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self.testvm2.netvm = self.testnetvm
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self.assertNotEqual(self.run_cmd(self.testvm1,
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self.ping_cmd.format(target=self.testvm2.ip6)), 0)
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self.assertNotEqual(self.run_cmd(self.testvm2,
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self.ping_cmd.format(target=self.testvm1.ip6)), 0)
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self.testvm1.netvm = self.testnetvm
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self.assertNotEqual(self.run_cmd(self.testvm1,
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self.ping_cmd.format(target=self.testvm2.ip6)), 0)
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self.assertNotEqual(self.run_cmd(self.testvm2,
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self.ping_cmd.format(target=self.testvm1.ip6)), 0)
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def test_550_ipv6_spoof_ip(self):
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'''Test if VM IP spoofing is blocked
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.loop.run_until_complete(self.testvm1.start())
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0)
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# add a simple rule counting packets
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self.assertEqual(self.run_cmd(self.testnetvm,
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'ip6tables -I INPUT -i vif+ ! -s {} -p icmpv6 -j LOG'.format(
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self.testvm1.ip6)), 0)
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self.loop.run_until_complete(self.testvm1.run_for_stdio(
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'ip -6 addr flush dev eth0 && '
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'ip -6 addr add {}/128 dev eth0 && '
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'ip -6 route add default via {} dev eth0'.format(
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str(self.testvm1.visible_ip6) + '1',
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str(self.testvm1.visible_gateway6)),
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user='root'))
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self.assertNotEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0,
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"Spoofed ping should be blocked")
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try:
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(output, _) = self.loop.run_until_complete(
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self.testnetvm.run_for_stdio('ip6tables -nxvL INPUT',
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user='root'))
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except subprocess.CalledProcessError:
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self.fail('ip6tables -nxvL INPUT failed')
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output = output.decode().splitlines()
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packets = output[2].lstrip().split()[0]
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self.assertEquals(packets, '0', 'Some packet hit the INPUT rule')
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def test_710_ipv6_custom_ip_simple(self):
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'''Custom AppVM IP
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.testvm1.ip6 = '2000:aaaa:bbbb::1'
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self.app.save()
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self.loop.run_until_complete(self.testvm1.start())
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0)
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_name), 0)
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def test_711_ipv6_custom_ip_proxy(self):
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'''Custom ProxyVM IP
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.proxy = self.app.add_new_vm(qubes.vm.appvm.AppVM,
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name=self.make_vm_name('proxy'),
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label='red')
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self.loop.run_until_complete(self.proxy.create_on_disk())
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self.proxy.provides_network = True
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self.proxy.netvm = self.testnetvm
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self.testvm1.ip6 = '2000:aaaa:bbbb::1'
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self.testvm1.netvm = self.proxy
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self.app.save()
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self.loop.run_until_complete(self.testvm1.start())
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0)
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_name), 0)
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def test_712_ipv6_custom_ip_firewall(self):
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'''Custom VM IP and firewall
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:type self: qubes.tests.SystemTestCase | VmIPv6NetworkingMixin
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'''
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self.testvm1.ip6 = '2000:aaaa:bbbb::1'
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self.proxy = self.app.add_new_vm(qubes.vm.appvm.AppVM,
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name=self.make_vm_name('proxy'),
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label='red')
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self.proxy.provides_network = True
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self.loop.run_until_complete(self.proxy.create_on_disk())
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self.proxy.netvm = self.testnetvm
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self.testvm1.netvm = self.proxy
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self.app.save()
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# block all but ICMP and DNS
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self.testvm1.firewall.rules = [
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qubes.firewall.Rule(None, action='accept', proto='icmp'),
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qubes.firewall.Rule(None, action='accept', specialtarget='dns'),
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]
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self.testvm1.firewall.save()
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self.loop.run_until_complete(self.testvm1.start())
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self.assertTrue(self.proxy.is_running())
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server = self.loop.run_until_complete(self.testnetvm.run(
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'socat TCP6-LISTEN:1234,fork EXEC:/bin/uname'))
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try:
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self.assertEqual(self.run_cmd(self.proxy, self.ping6_ip), 0,
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"Ping by IP from ProxyVM failed")
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self.assertEqual(self.run_cmd(self.proxy, self.ping6_name), 0,
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"Ping by name from ProxyVM failed")
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_ip), 0,
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"Ping by IP should be allowed")
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self.assertEqual(self.run_cmd(self.testvm1, self.ping6_name), 0,
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"Ping by name should be allowed")
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client_cmd = "socat TCP:[{}]:1234 -".format(self.test_ip6)
|
|
self.assertNotEqual(self.run_cmd(self.testvm1, client_cmd), 0,
|
|
"TCP connection should be blocked")
|
|
finally:
|
|
server.terminate()
|
|
self.loop.run_until_complete(server.wait())
|
|
|
|
def create_testcases_for_templates():
|
|
yield from qubes.tests.create_testcases_for_templates('VmIPv6Networking',
|
|
VmIPv6NetworkingMixin, qubes.tests.SystemTestCase,
|
|
module=sys.modules[__name__])
|
|
|
|
def load_tests(loader, tests, pattern):
|
|
tests.addTests(loader.loadTestsFromNames(
|
|
create_testcases_for_templates()))
|
|
return tests
|
|
|
|
qubes.tests.maybe_create_testcases_on_import(create_testcases_for_templates)
|