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iwd/autotests/testFT-8021x-roam/connection_test.py
James Prestwood 1dc4d6e9ba auto-t: update roaming tests with wait_for_object_change
Every single roaming test had one of two problems with watching the
state change between roaming --> connected. Either the test used
wait_for_object_condition to wait for 'connected' which could allow
other states in between. Or it simply used an assert. The assert
wouldn't allow other state changes, but at the cost of potentially
failing due to IWD not having made it to the 'connected' state yet.

Now we have wait_for_object_change which takes two conditions:
initial (from_str) and expected (to_str). This API will not allow
any other conditions except these, and will wait for the expected
condition before continuing. This allows roaming test to reliably
wait for the roaming --> connected state change.
2021-02-05 14:44:00 -06:00

149 lines
5.2 KiB
Python

#! /usr/bin/python3
import unittest
import sys, os
sys.path.append('../util')
import iwd
from iwd import IWD
from iwd import NetworkType
from hwsim import Hwsim
from hostapd import HostapdCLI
import testutil
class Test(unittest.TestCase):
def test_roam_success(self):
hwsim = Hwsim()
rule0 = hwsim.rules.create()
rule0.source = self.bss_radio[0].addresses[0]
rule0.bidirectional = True
rule1 = hwsim.rules.create()
rule1.source = self.bss_radio[1].addresses[0]
rule1.bidirectional = True
wd = IWD()
device = wd.list_devices(1)[0]
# Check that iwd selects BSS 0 first
rule0.signal = -2000
rule1.signal = -2500
condition = 'not obj.scanning'
wd.wait_for_object_condition(device, condition)
device.scan()
condition = 'obj.scanning'
wd.wait_for_object_condition(device, condition)
condition = 'not obj.scanning'
wd.wait_for_object_condition(device, condition)
ordered_network = device.get_ordered_network('TestFT')
self.assertEqual(ordered_network.type, NetworkType.eap)
self.assertEqual(ordered_network.signal_strength, -2000)
condition = 'not obj.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
self.assertFalse(self.bss_hostapd[0].list_sta())
self.assertFalse(self.bss_hostapd[1].list_sta())
ordered_network.network_object.connect()
condition = 'obj.state == DeviceState.connected'
wd.wait_for_object_condition(device, condition)
self.assertTrue(self.bss_hostapd[0].list_sta())
self.assertFalse(self.bss_hostapd[1].list_sta())
testutil.test_iface_operstate(device.name)
testutil.test_ifaces_connected(self.bss_hostapd[0].ifname, device.name)
self.assertRaises(Exception, testutil.test_ifaces_connected,
(self.bss_hostapd[1].ifname, device.name))
# Check that iwd starts transition to BSS 1 in less than 10 seconds.
# The 10 seconds is longer than needed to scan on just two channels
# but short enough that a full scan on the 2.4 + 5.8 bands supported
# by mac80211_hwsim will not finish. If this times out then, but
# device_roam_trigger_cb has happened, it probably means that
# Neighbor Reports are broken.
rule0.signal = -8000
condition = 'obj.state == DeviceState.roaming'
wd.wait_for_object_condition(device, condition)
# Check that iwd is on BSS 1 once out of roaming state and doesn't
# go through 'disconnected', 'autoconnect', 'connecting' in between
from_condition = 'obj.state == DeviceState.roaming'
to_condition = 'obj.state == DeviceState.connected'
wd.wait_for_object_change(device, from_condition, to_condition)
self.assertTrue(self.bss_hostapd[1].list_sta())
testutil.test_iface_operstate(device.name)
testutil.test_ifaces_connected(self.bss_hostapd[1].ifname, device.name)
self.assertRaises(Exception, testutil.test_ifaces_connected,
(self.bss_hostapd[0].ifname, device.name))
def tearDown(self):
os.system('ifconfig "' + self.bss_hostapd[0].ifname + '" down')
os.system('ifconfig "' + self.bss_hostapd[1].ifname + '" down')
os.system('ifconfig "' + self.bss_hostapd[0].ifname + '" up')
os.system('ifconfig "' + self.bss_hostapd[1].ifname + '" up')
hwsim = Hwsim()
wd = IWD()
device = wd.list_devices(1)[0]
try:
device.disconnect()
except:
pass
condition = 'obj.state == DeviceState.disconnected'
wd.wait_for_object_condition(device, condition)
for rule in list(hwsim.rules.keys()):
del hwsim.rules[rule]
@classmethod
def setUpClass(cls):
IWD.copy_to_storage('TestFT.8021x')
hwsim = Hwsim()
cls.bss_hostapd = [ HostapdCLI(config='ft-eap-ccmp-1.conf'),
HostapdCLI(config='ft-eap-ccmp-2.conf') ]
cls.bss_radio = [ hwsim.get_radio('rad0'),
hwsim.get_radio('rad1') ]
# Set interface addresses to those expected by hostapd config files
os.system('ifconfig "' + cls.bss_hostapd[0].ifname +
'" down hw ether 12:00:00:00:00:01 up')
os.system('ifconfig "' + cls.bss_hostapd[1].ifname +
'" down hw ether 12:00:00:00:00:02 up')
cls.bss_hostapd[0].reload()
cls.bss_hostapd[1].reload()
# Fill in the neighbor AP tables in both BSSes. By default each
# instance knows only about current BSS, even inside one hostapd
# process.
# FT still works without the neighbor AP table but neighbor reports
# have to be disabled in the .conf files
cls.bss_hostapd[0].set_neighbor('12:00:00:00:00:02', 'TestFT',
'1200000000028f0000005102060603000000')
cls.bss_hostapd[1].set_neighbor('12:00:00:00:00:01', 'TestFT',
'1200000000018f0000005101060603000000')
@classmethod
def tearDownClass(cls):
IWD.clear_storage()
if __name__ == '__main__':
unittest.main(exit=True)