#!/usr/bin/python
# vim: fileencoding=utf-8
#
# The Qubes OS Project, https://www.qubes-os.org/
#
# Copyright (C) 2015
# Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
# Copyright (C) 2015 Wojtek Porczyk <woju@invisiblethingslab.com>
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License along
# with this program; if not, write to the Free Software Foundation, Inc.,
# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
#
from distutils import spawn
import multiprocessing
import os
import subprocess
import unittest
import time
from qubes.qubes import QubesVmCollection, defaults
import qubes.tests
class VmNetworkingMixin(qubes.tests.SystemTestsMixin):
test_ip = '192.168.123.45'
test_name = 'test.example.com'
ping_cmd = 'ping -W 1 -n -c 1 {target}'
ping_ip = ping_cmd.format(target=test_ip)
ping_name = ping_cmd.format(target=test_name)
def run_cmd(self, vm, cmd, user="root"):
p = vm.run(cmd, user=user, passio_popen=True, ignore_stderr=True)
p.stdin.close()
p.stdout.read()
return p.wait()
def setUp(self):
super(VmNetworkingMixin, self).setUp()
self.testnetvm = self.qc.add_new_vm("QubesNetVm",
name=self.make_vm_name('netvm1'),
template=self.qc.get_vm_by_name(self.template))
self.testnetvm.create_on_disk(verbose=False)
self.testvm1 = self.qc.add_new_vm("QubesAppVm",
name=self.make_vm_name('vm2'),
template=self.qc.get_vm_by_name(self.template))
self.testvm1.create_on_disk(verbose=False)
self.testvm1.netvm = self.testnetvm
self.qc.save()
self.configure_netvm()
def configure_netvm(self):
def run_netvm_cmd(cmd):
if self.run_cmd(self.testnetvm, cmd) != 0:
self.fail("Command '%s' failed" % cmd)
if not self.testnetvm.is_running():
self.testnetvm.start()
# Ensure that dnsmasq is installed:
p = self.testnetvm.run("dnsmasq --version", user="root",
passio_popen=True)
if p.wait() != 0:
self.skipTest("dnsmasq not installed")
run_netvm_cmd("ip link add test0 type dummy")
run_netvm_cmd("ip link set test0 up")
run_netvm_cmd("ip addr add {}/24 dev test0".format(self.test_ip))
run_netvm_cmd("iptables -I INPUT -d {} -j ACCEPT".format(self.test_ip))
run_netvm_cmd("dnsmasq -a {ip} -A /{name}/{ip} -i test0 -z".format(
ip=self.test_ip, name=self.test_name))
run_netvm_cmd("echo nameserver {} > /etc/resolv.conf".format(
self.test_ip))
run_netvm_cmd("/usr/lib/qubes/qubes-setup-dnat-to-ns")
def test_000_simple_networking(self):
self.testvm1.start()
self.assertEqual(self.run_cmd(self.testvm1, self.ping_ip), 0)
self.assertEqual(self.run_cmd(self.testvm1, self.ping_name), 0)
def test_010_simple_proxyvm(self):
self.proxy = self.qc.add_new_vm("QubesProxyVm",
name=self.make_vm_name('proxy'),
template=self.qc.get_vm_by_name(self.template))
self.proxy.create_on_disk(verbose=False)
self.proxy.netvm = self.testnetvm
self.testvm1.netvm = self.proxy
self.qc.save()
self.testvm1.start()
self.assertTrue(self.proxy.is_running())
self.assertEqual(self.run_cmd(self.proxy, self.ping_ip), 0,
"Ping by IP from ProxyVM failed")
self.assertEqual(self.run_cmd(self.proxy, self.ping_name), 0,
"Ping by name from ProxyVM failed")
self.assertEqual(self.run_cmd(self.testvm1, self.ping_ip), 0,
"Ping by IP from AppVM failed")
self.assertEqual(self.run_cmd(self.testvm1, self.ping_name), 0,
"Ping by IP from AppVM failed")
@unittest.skipUnless(spawn.find_executable('xdotool'),
"xdotool not installed")
def test_020_simple_proxyvm_nm(self):
self.proxy = self.qc.add_new_vm("QubesProxyVm",
name=self.make_vm_name('proxy'),
template=self.qc.get_vm_by_name(self.template))
self.proxy.create_on_disk(verbose=False)
self.proxy.netvm = self.testnetvm
self.proxy.services['network-manager'] = True
self.testvm1.netvm = self.proxy
self.qc.save()
self.testvm1.start()
self.assertTrue(self.proxy.is_running())
self.assertEqual(self.run_cmd(self.testvm1, self.ping_ip), 0,
"Ping by IP failed")
self.assertEqual(self.run_cmd(self.testvm1, self.ping_name), 0,
"Ping by name failed")
# reconnect to make sure that device was configured by NM
self.assertEqual(
self.run_cmd(self.proxy, "nmcli device disconnect eth0",
user="user"),
0, "Failed to disconnect eth0 using nmcli")
self.assertNotEqual(self.run_cmd(self.testvm1, self.ping_ip), 0,
"Network should be disabled, but apparently it isn't")
self.assertEqual(
self.run_cmd(self.proxy,
'nmcli connection up "VM uplink eth0" ifname eth0',
user="user"),
0, "Failed to connect eth0 using nmcli")
self.assertEqual(self.run_cmd(self.proxy, "nm-online", user="user"), 0,
"Failed to wait for NM connection")
# check for nm-applet presence
self.assertEqual(subprocess.call([
'xdotool', 'search', '--all', '--name',
'--class', '^(NetworkManager Applet|{})$'.format(self.proxy.name)],
stdout=open('/dev/null', 'w')), 0, "nm-applet window not found")
self.assertEqual(self.run_cmd(self.testvm1, self.ping_ip), 0,
"Ping by IP failed (after NM reconnection")
self.assertEqual(self.run_cmd(self.testvm1, self.ping_name), 0,
"Ping by name failed (after NM reconnection)")
def test_030_firewallvm_firewall(self):
self.proxy = self.qc.add_new_vm("QubesProxyVm",
name=self.make_vm_name('proxy'),
template=self.qc.get_vm_by_name(self.template))
self.proxy.create_on_disk(verbose=False)
self.proxy.netvm = self.testnetvm
self.testvm1.netvm = self.proxy
self.qc.save()
# block all for first
self.testvm1.write_firewall_conf({
'allow': False,
'allowDns': False,
'allowIcmp': False,
})
self.testvm1.start()
self.assertTrue(self.proxy.is_running())
self.testnetvm.run("nc -l --send-only -e /bin/hostname -k 1234")
self.assertEqual(self.run_cmd(self.proxy, self.ping_ip), 0,
"Ping by IP from ProxyVM failed")
self.assertEqual(self.run_cmd(self.proxy, self.ping_name), 0,
"Ping by name from ProxyVM failed")
self.assertNotEqual(self.run_cmd(self.testvm1, self.ping_ip), 0,
"Ping by IP should be blocked")
nc_cmd = "nc -w 1 --recv-only 192.168.123.45 1234"
self.assertNotEqual(self.run_cmd(self.testvm1, nc_cmd), 0,
"TCP connection should be blocked")
# block all except ICMP
self.testvm1.write_firewall_conf({
'allow': False,
'allowDns': False,
'allowIcmp': True,
})
self.proxy.write_iptables_qubesdb_entry()
# Ugly hack b/c there is no feedback when the rules are actually applied
time.sleep(1)
self.assertEqual(self.run_cmd(self.testvm1, self.ping_ip), 0,
"Ping by IP failed (should be allowed now)")
self.assertNotEqual(self.run_cmd(self.testvm1, self.ping_name), 0,
"Ping by name should be blocked")
# all TCP still blocked
self.testvm1.write_firewall_conf({
'allow': False,
'allowDns': True,
'allowIcmp': True,
})
self.proxy.write_iptables_qubesdb_entry()
# Ugly hack b/c there is no feedback when the rules are actually applied
time.sleep(1)
self.assertEqual(self.run_cmd(self.testvm1, self.ping_name), 0,
"Ping by name failed (should be allowed now)")
self.assertNotEqual(self.run_cmd(self.testvm1, nc_cmd), 0,
"TCP connection should be blocked")
# block all except target
self.testvm1.write_firewall_conf({
'allow': False,
'allowDns': True,
'allowIcmp': True,
'rules': [{'address': self.ping_ip,
'netmask': 32,
'proto': 'tcp',
'portBegin': 1234
}] })
self.proxy.write_iptables_qubesdb_entry()
# Ugly hack b/c there is no feedback when the rules are actually applied
time.sleep(1)
self.assertEqual(self.run_cmd(self.testvm1, nc_cmd), 0,
"TCP connection failed (should be allowed now)")
# allow all except target
self.testvm1.write_firewall_conf({
'allow': True,
'allowDns': True,
'allowIcmp': True,
'rules': [{'address': self.ping_ip,
'netmask': 32,
'proto': 'tcp',
'portBegin': 1234
}]
})
self.proxy.write_iptables_qubesdb_entry()
# Ugly hack b/c there is no feedback when the rules are actually applied
time.sleep(1)
self.assertNotEqual(self.run_cmd(self.testvm1, nc_cmd), 0,
"TCP connection should be blocked")
def test_040_inter_vm(self):
self.proxy = self.qc.add_new_vm("QubesProxyVm",
name=self.make_vm_name('proxy'),
template=self.qc.get_vm_by_name(self.template))
self.proxy.create_on_disk(verbose=False)
self.proxy.netvm = self.testnetvm
self.testvm1.netvm = self.proxy
self.testvm2 = self.qc.add_new_vm("QubesAppVm",
name=self.make_vm_name('vm3'),
template=self.qc.get_vm_by_name(self.template))
self.testvm2.create_on_disk(verbose=False)
self.testvm2.netvm = self.proxy
self.qc.save()
self.testvm1.start()
self.testvm2.start()
self.assertNotEqual(self.run_cmd(self.testvm1,
self.ping_cmd.format(target=self.testvm2.ip)), 0)
self.testvm2.netvm = self.testnetvm
self.assertNotEqual(self.run_cmd(self.testvm1,
self.ping_cmd.format(target=self.testvm2.ip)), 0)
self.assertNotEqual(self.run_cmd(self.testvm2,
self.ping_cmd.format(target=self.testvm1.ip)), 0)
self.testvm1.netvm = self.testnetvm
self.assertNotEqual(self.run_cmd(self.testvm1,
self.ping_cmd.format(target=self.testvm2.ip)), 0)
self.assertNotEqual(self.run_cmd(self.testvm2,
self.ping_cmd.format(target=self.testvm1.ip)), 0)
def load_tests(loader, tests, pattern):
try:
qc = qubes.qubes.QubesVmCollection()
qc.lock_db_for_reading()
qc.load()
qc.unlock_db()
templates = [vm.name for vm in qc.values() if
isinstance(vm, qubes.qubes.QubesTemplateVm)]
except OSError:
templates = []
for template in templates:
tests.addTests(loader.loadTestsFromTestCase(
type(
'VmNetworking_' + template,
(VmNetworkingMixin, qubes.tests.QubesTestCase),
{'template': template})))
return tests