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iwd/autotests/testFT-PSK-over-DS/connection_test.py
Denis Kenzior 8d8ea67da1 auto-t: Change FT test cases to use start_iwd=0
These test cases depend on setting up the existing hostapd instance to a
set of known addresses, which might be different from what test-runner
sets.  During this time, any scans might result in the old and the new
addresses used by hostapd to be found in the scan results.

Fix that by using start_iwd=0 which tells test_runner that the test
wants to start iwd itself.  This delays starting iwd until after the
setUpClass routine has been called and hostapd configured properly.

Also use more sensible rssi values for the 'non-preferred' bss.
Otherwise, ranking BSSes by throughput can confuse the test logic
since both BSSes are ranked the same and either can be picked by
autoconnect.
2021-05-24 14:31:04 -05:00

152 lines
5.5 KiB
Python

#! /usr/bin/python3
import unittest
import sys, os
sys.path.append('../util')
import iwd
from iwd import IWD
from iwd import PSKAgent
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
# Check that iwd selects BSS 0 first
rule0.signal = -2000
rule1.signal = -6900
wd = IWD(True)
psk_agent = PSKAgent("EasilyGuessedPassword")
wd.register_psk_agent(psk_agent)
device = wd.list_devices(1)[0]
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.psk)
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.bss_hostapd[0].wait_for_event('AP-STA-CONNECTED %s' % device.address)
# list_sta actually reports any authenticated stations. Due to the
# nature of FT-over-DS IWD should authenticate to all stations with
# the same mobility domain. This means both APs should show our station.
self.assertTrue(self.bss_hostapd[0].list_sta())
self.assertTrue(self.bss_hostapd[1].list_sta())
wd.unregister_psk_agent(psk_agent)
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()
for rule in list(hwsim.rules.keys()):
del hwsim.rules[rule]
@classmethod
def setUpClass(cls):
hwsim = Hwsim()
cls.bss_hostapd = [ HostapdCLI(config='ft-psk-ccmp-1.conf'),
HostapdCLI(config='ft-psk-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[0].wait_for_event("AP-ENABLED")
cls.bss_hostapd[1].reload()
cls.bss_hostapd[1].wait_for_event("AP-ENABLED")
# 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()
cls.bss_hostapd = None
cls.bss_radio = None
if __name__ == '__main__':
unittest.main(exit=True)