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#!/usr/bin/python3
#
# Integration tests for wireless devices
#
# These need to be run in a VM and do change the system
# configuration.
#
# Copyright (C) 2018-2021 Canonical, Ltd.
# Author: Mathieu Trudel-Lapierre <mathieu.trudel-lapierre@canonical.com>
# Author: Lukas Märdian <slyon@ubuntu.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; version 3.
#
# 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, see <http://www.gnu.org/licenses/>.
import sys
import subprocess
import unittest
from base import IntegrationTestsWifi, test_backends
class _CommonTests():
@unittest.skip("Unsupported matching by driver / wifi matching makes this untestable for now")
def test_mapping_for_driver(self):
self.setup_ap('hw_mode=b\nchannel=1\nssid=fake net', None)
with open(self.config, 'w') as f:
f.write('''network:
renderer: %(r)s
wifis:
wifi_ifs:
match:
driver: mac80211_hwsim
dhcp4: yes
access-points:
"fake net": {}
decoy: {}''' % {'r': self.backend})
self.generate_and_settle([self.state_dhcp4(self.dev_w_client)])
p = subprocess.Popen(['netplan', 'generate', '--mapping', 'mac80211_hwsim'],
stdout=subprocess.PIPE)
out = p.communicate()[0]
self.assertEquals(p.returncode, 1)
self.assertIn(b'mac80211_hwsim', out)
def test_wifi_ipv4_open(self):
self.setup_ap('hw_mode=b\nchannel=1\nssid=fake net', None)
with open(self.config, 'w') as f:
f.write('''network:
renderer: %(r)s
wifis:
%(wc)s:
dhcp4: yes
access-points:
"fake net": {}
decoy: {}''' % {'r': self.backend, 'wc': self.dev_w_client})
self.generate_and_settle([self.state_dhcp4(self.dev_w_client)])
self.assert_iface_up(self.dev_w_client, ['inet 192.168.5.[0-9]+/24'])
self.assertIn(b'default via 192.168.5.1', # from DHCP
subprocess.check_output(['ip', 'route', 'show', 'dev', self.dev_w_client]))
if self.backend == 'NetworkManager':
out = subprocess.check_output(['nmcli', 'dev', 'show', self.dev_w_client],
text=True)
self.assertRegex(out, 'GENERAL.CONNECTION.*netplan-%s-fake net' % self.dev_w_client)
self.assertRegex(out, 'IP4.DNS.*192.168.5.1')
else:
out = subprocess.check_output(['networkctl', 'status', self.dev_w_client],
text=True)
self.assertRegex(out, 'DNS.*192.168.5.1')
def test_wifi_ipv4_wpa2(self):
self.setup_ap('''hw_mode=g
channel=1
ssid=fake net
wpa=1
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
wpa_passphrase=12345678
''', None)
with open(self.config, 'w') as f:
f.write('''network:
renderer: %(r)s
wifis:
%(wc)s:
dhcp4: yes
access-points:
"fake net":
password: 12345678
decoy: {}''' % {'r': self.backend, 'wc': self.dev_w_client})
self.generate_and_settle([self.state_dhcp4(self.dev_w_client)])
self.assert_iface_up(self.dev_w_client, ['inet 192.168.5.[0-9]+/24'])
self.assertIn(b'default via 192.168.5.1', # from DHCP
subprocess.check_output(['ip', 'route', 'show', 'dev', self.dev_w_client]))
if self.backend == 'NetworkManager':
out = subprocess.check_output(['nmcli', 'dev', 'show', self.dev_w_client],
text=True)
self.assertRegex(out, 'GENERAL.CONNECTION.*netplan-%s-fake net' % self.dev_w_client)
self.assertRegex(out, 'IP4.DNS.*192.168.5.1')
else:
out = subprocess.check_output(['networkctl', 'status', self.dev_w_client],
text=True)
self.assertRegex(out, 'DNS.*192.168.5.1')
def test_wifi_ipv4_wpa2_psk_sha256_only(self):
self.setup_ap('''hw_mode=g
channel=1
ssid=fake net
wpa=2
wpa_key_mgmt=WPA-PSK-SHA256
wpa_pairwise=CCMP
ieee80211w=2
wpa_passphrase=12345678
''', None)
with open(self.config, 'w') as f:
f.write('''network:
renderer: %(r)s
wifis:
%(wc)s:
dhcp4: yes
access-points:
"fake net":
auth:
key-management: psk-sha256
password: 12345678
decoy: {}''' % {'r': self.backend, 'wc': self.dev_w_client})
self.generate_and_settle([self.state_dhcp4(self.dev_w_client)])
self.assert_iface_up(self.dev_w_client, ['inet 192.168.5.[0-9]+/24'])
self.assertIn(b'default via 192.168.5.1', # from DHCP
subprocess.check_output(['ip', 'route', 'show', 'dev', self.dev_w_client]))
if self.backend == 'NetworkManager':
out = subprocess.check_output(['nmcli', 'dev', 'show', self.dev_w_client],
text=True)
self.assertRegex(out, 'GENERAL.CONNECTION.*netplan-%s-fake net' % self.dev_w_client)
self.assertRegex(out, 'IP4.DNS.*192.168.5.1')
else:
out = subprocess.check_output(['networkctl', 'status', self.dev_w_client],
text=True)
self.assertRegex(out, 'DNS.*192.168.5.1')
def test_wifi_regdom(self):
self.setup_ap('''hw_mode=g
channel=1
ssid=fake net
wpa=1
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
wpa_passphrase=12345678
''', None)
out = subprocess.check_output(['iw', 'reg', 'get'], text=True)
self.assertNotIn('country GB', out)
with open(self.config, 'w') as f:
f.write('''network:
renderer: %(r)s
wifis:
%(wc)s:
addresses: ["192.168.1.42/24"]
regulatory-domain: GB
access-points:
"fake net":
password: 12345678''' % {'r': self.backend, 'wc': self.dev_w_client})
self.generate_and_settle([self.dev_w_client])
self.assert_iface_up(self.dev_w_client, ['inet 192.168.1.42/24'])
out = subprocess.check_output(['iw', 'reg', 'get'], text=True)
self.assertIn('global\ncountry GB', out)
@unittest.skipIf("networkd" not in test_backends,
"skipping as networkd backend tests are disabled")
class TestNetworkd(IntegrationTestsWifi, _CommonTests):
backend = 'networkd'
@unittest.skipIf("NetworkManager" not in test_backends,
"skipping as NetworkManager backend tests are disabled")
class TestNetworkManager(IntegrationTestsWifi, _CommonTests):
backend = 'NetworkManager'
def test_wifi_ap_open(self):
# we use dev_w_client and dev_w_ap in switched roles here, to keep the
# existing device denylisting in NM; i. e. dev_w_client is the
# NM-managed AP, and dev_w_ap the manually managed client
with open(self.config, 'w') as f:
f.write('''network:
wifis:
renderer: NetworkManager
%(wc)s:
dhcp4: yes
access-points:
"fake net":
mode: ap''' % {'wc': self.dev_w_client})
self.generate_and_settle([self.state(self.dev_w_client, 'inet 10.')])
out = subprocess.check_output(['iw', 'dev', self.dev_w_client, 'info'],
text=True)
self.assertIn('type AP', out)
self.assertIn('ssid fake net', out)
# connect the other end
subprocess.check_call(['ip', 'link', 'set', self.dev_w_ap, 'up'])
subprocess.check_call(['iw', 'dev', self.dev_w_ap, 'connect', 'fake net'])
out = subprocess.check_output(['dhcpcd', '-w', '-d', self.dev_w_ap],
stderr=subprocess.STDOUT, text=True)
self.assertIn('acknowledged 10.', out)
out = subprocess.check_output(['iw', 'dev', self.dev_w_ap, 'info'],
text=True)
self.assertIn('type managed', out)
self.assertIn('ssid fake net', out)
self.assert_iface_up(self.dev_w_ap, ['inet 10.'])
@unittest.skip("Test if flaky. NM might generate a different MAC address.")
def test_wifi_cloned_macaddress_stable_ssid(self):
self.setup_ap('''hw_mode=g
channel=1
ssid=fake net
wpa=1
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
wpa_passphrase=12345678
''', None)
with open(self.config, 'w') as f:
f.write('''network:
renderer: NetworkManager
wifis:
%(wc)s:
addresses: ["192.168.1.42/24"]
dhcp4: false
dhcp6: false
macaddress: stable-ssid
access-points:
"fake net":
password: 12345678''' % {'wc': self.dev_w_client})
subprocess.check_call(['systemctl', 'start', 'NetworkManager'])
# Make the generated MAC address predictable
# See nm_utils_hw_addr_gen_stable_eth() in NM for details
# TODO: save and restore these files to avoid any impact on the
# entire test suite.
with open('/etc/machine-id', 'w') as f:
f.write('ee7ac3602b6306061bd984a41eb1c045\n')
with open('/var/lib/NetworkManager/secret_key', 'w') as f:
f.write('nm-v2:hnIHoHp4p9kaEWU5/+dO+gFREirN1AsMoO1MPaoYxCc=')
subprocess.check_call(['systemctl', 'restart', 'NetworkManager'])
self.generate_and_settle([self.state_up(self.dev_w_client)])
self.assert_iface_up(self.dev_w_client, ['ether 5e:ba:fe:fd:89:03'])
unittest.main(testRunner=unittest.TextTestRunner(stream=sys.stdout, verbosity=2))
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