#!/usr/bin/python # vim: fileencoding=utf-8 # # The Qubes OS Project, https://www.qubes-os.org/ # # Copyright (C) 2015 # Marek Marczykowski-Górecki # Copyright (C) 2015 Wojtek Porczyk # # 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