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#!/usr/bin/python3
# Test wpa_supplicant and dhclient in various modes
__author__ = 'Martin Pitt <martin.pitt@ubuntu.com>'
__copyright__ = '(C) 2013 Canonical Ltd.'
__license__ = 'GPL v2 or later'
import sys
import os
import os.path
import re
import time
import subprocess
import unittest
sys.path.append(os.path.dirname(__file__))
import network_test_base
SSID = 'fake net'
class T(network_test_base.NetworkTestBase):
@unittest.expectedFailure
def test_open_a_ip4(self):
'''Open network, 802.11a, IPv4'''
# channel 36 ought to work everywhere
self.do_test('hw_mode=a\nchannel=36\n\nssid=' + SSID,
'ssid="%s"\nkey_mgmt=NONE' % SSID,
None,
['54.0'])
@unittest.expectedFailure
def test_open_a_ip6(self):
'''Open network, 802.11a, IPv6'''
self.do_test('hw_mode=a\nchannel=36\n\nssid=' + SSID,
'ssid="%s"\nkey_mgmt=NONE' % SSID,
'',
['54.0'])
def test_open_b_ip4(self):
'''Open network, 802.11b, IPv4'''
self.do_test('hw_mode=b\nchannel=1\nssid=' + SSID,
'ssid="%s"\nkey_mgmt=NONE' % SSID,
None,
['11.0'])
def test_open_b_ip6_dhcp(self):
'''Open network, 802.11b, IPv6 with DHCP'''
self.do_test('hw_mode=b\nchannel=1\nssid=' + SSID,
'ssid="%s"\nkey_mgmt=NONE' % SSID,
'',
['11.0'])
def test_open_b_ip6_raonly(self):
'''Open network, 802.11b, IPv6 with only RA'''
self.do_test('hw_mode=b\nchannel=1\nssid=' + SSID,
'ssid="%s"\nkey_mgmt=NONE' % SSID,
'ra-only',
['11.0'])
def test_open_g_ip4(self):
'''Open network, 802.11g, IPv4'''
self.do_test('hw_mode=g\nchannel=1\nssid=' + SSID,
'ssid="%s"\nkey_mgmt=NONE' % SSID,
None,
['54.0'])
def test_wpa1_ip4(self):
'''WPA1, 802.11g, IPv4'''
self.do_test('''hw_mode=g
channel=1
ssid=%s
wpa=1
wpa_key_mgmt=WPA-PSK
wpa_pairwise=TKIP
wpa_passphrase=12345678
''' % SSID,
'''ssid="%s"
psk="12345678"
key_mgmt=WPA-PSK
proto=WPA
pairwise=TKIP
group=TKIP''' % SSID,
None,
['54.0',
'Pairwise ciphers: TKIP',
'Authentication suites: PSK'])
def test_wpa2_ip4(self):
'''WPA2, 802.11g, IPv4'''
self.do_test('''hw_mode=g
channel=1
ssid=%s
wpa=2
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
wpa_passphrase=12345678
''' % SSID,
'''ssid="%s"
psk="12345678"
key_mgmt=WPA-PSK
proto=WPA2
pairwise=CCMP
group=CCMP''' % SSID,
None,
['54.0',
'Pairwise ciphers: CCMP',
'Authentication suites: PSK'])
def test_wpa2_ip6(self):
'''WPA2, 802.11g, IPv6'''
self.do_test('''hw_mode=g
channel=1
ssid=%s
wpa=2
wpa_key_mgmt=WPA-PSK
wpa_pairwise=CCMP
wpa_passphrase=12345678
''' % SSID,
'''ssid="%s"
psk="12345678"
key_mgmt=WPA-PSK
proto=WPA2
pairwise=CCMP
group=CCMP''' % SSID,
'',
['54.0',
'Pairwise ciphers: CCMP',
'Authentication suites: PSK'])
#
# Common for all tests
#
def do_test(self, hostapd_conf, wpa_conf, ipv6, exp_iw_scan):
self.setup_ap(hostapd_conf, ipv6)
self.check_ssid_avail(exp_iw_scan)
self.start_wpasupp(wpa_conf)
self.check_iw_link()
self.check_communication(ipv6)
self.check_address(ipv6)
def check_ssid_avail(self, expected_strings):
subprocess.check_call(['ip', 'link', 'set', self.dev_w_client, 'up'])
out = subprocess.check_output(['iw', 'dev', self.dev_w_client, 'scan'],
universal_newlines=True)
# down it again, wpa_supplicant is supposed to up it by itself
subprocess.check_call(['ip', 'link', 'set', self.dev_w_client, 'down'])
self.assertRegex(out, 'SSID: ' + SSID)
for s in expected_strings:
self.assertRegex(out, s)
def check_iw_link(self):
tries = 10
while tries > 0:
out = subprocess.check_output(['iw', 'dev', self.dev_w_client, 'link'],
universal_newlines=True)
if 'SSID' in out:
break
tries -= 1
time.sleep(1)
else:
self.fail('timed out on iwconfig showing connected status')
self.assertRegex(out, 'Connected to ' + self.mac_w_ap)
self.assertRegex(out, 'SSID: ' + SSID)
def check_communication(self, ipv6_mode):
'''Verify that communication works between AP and client
This proves that wpa_supplicant set up a working link. We use a DHCP
request for IPv4 and IPv6 in DHCP mode. For IPv6 in other (i.
e. ra-only/slaac) modes, check that dnsmasq received a router solicit
and sends a router advertisement.
'''
if ipv6_mode is not None:
self.poll_text(self.dnsmasq_log, 'RTR-SOLICIT(%s)' % self.dev_w_ap, timeout=50)
self.poll_text(self.dnsmasq_log, 'RTR-ADVERT(%s)' % self.dev_w_ap, timeout=5)
# stop here for non-DHCP modes in IPv6
if ipv6_mode not in (None, '', 'slaac'):
return
# FIXME: sometimes takes more than 5 s in IPv6 mode
if ipv6_mode is not None:
mode = '-6'
timeout = 10
else:
mode = '-4'
timeout = 5
# run DHCP client on client
out = subprocess.check_output(['dhclient', mode, '-1', '-v',
'-lf', '/dev/null', self.dev_w_client],
universal_newlines=True, timeout=timeout,
stderr=subprocess.STDOUT)
# stop DHCP client
subprocess.call(['dhclient', '-x', mode, self.dev_w_client],
stderr=subprocess.STDOUT)
if ipv6_mode is not None:
self.assertRegex(out, 'status code Success')
self.assertRegex(out, 'IAADDR 2600::')
else:
self.assertRegex(out, 'DHCPACK of')
self.assertRegex(out, 'bound to')
def check_address(self, ipv6_mode):
'''Verify that the interface got an appropriate address assigned'''
out = subprocess.check_output(['ip', 'a', 'show', 'dev', self.dev_w_client],
universal_newlines=True)
self.assertRegex(out, 'state UP')
if ipv6_mode is None:
self.assertRegex(out, 'inet 192.168.5.\d+/24')
else:
if not ipv6_mode:
# has global address from our DHCP server
self.assertRegex(out, 'inet6 2600::[0-9a-z]+/\d')
else:
# has address with our prefix and MAC
self.assertRegex(out, 'inet6 2600::ff:fe00:[0-9a-z]+/64 scope global (?:tentative )?(?:mngtmpaddr )?dynamic')
# has a link-local address
self.assertRegex(out, 'inet6 fe80::ff:fe00:[0-9a-z:]+/64 scope link')
if re.search(b's390', subprocess.run(['dpkg', '--print-architecture'], capture_output=True).stdout):
print("s390 arch has no wireless support, skipping")
sys.exit(77)
# write to stdout, not stderr
runner = unittest.TextTestRunner(stream=sys.stdout, verbosity=2)
unittest.main(testRunner=runner)
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