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iwd/autotests/testPSK-roam/roam_ap_disconnect_test.py

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#! /usr/bin/python3
import unittest
import sys, os
sys.path.append('../util')
from iwd import IWD
from iwd import NetworkType
from hwsim import Hwsim
from hostapd import HostapdCLI
class Test(unittest.TestCase):
#
# Tests a crash reported where multiple roam scans combined with an AP
# disconnect result in a crash getting scan results.
#
def validate(self):
wd = IWD(True)
device = wd.list_devices(1)[0]
ordered_network = device.get_ordered_network('TestFT', full_scan=True)
self.assertEqual(ordered_network.type, NetworkType.psk)
condition = 'not obj.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
device.connect_bssid(self.bss_hostapd[0].bssid)
condition = 'obj.state == DeviceState.connected'
wd.wait_for_object_condition(device, condition)
# Since both BSS's have low signal, the roam should fail and trigger
# another roam scan.
device.wait_for_event('no-roam-candidates', timeout=30)
device.wait_for_event('roam-scan-triggered', timeout=30)
# Hostapd sends disconnect
self.bss_hostapd[0].disable()
# IWD should recover, and not crash
condition = 'obj.state == DeviceState.disconnected'
wd.wait_for_object_condition(device, condition)
def test_ap_disconnect_no_neighbors(self):
self.validate()
def test_ap_disconnect_neighbors(self):
self.bss_hostapd[0].set_neighbor('12:00:00:00:00:02', 'TestFT',
'1200000000028f0000005102060603000000')
self.bss_hostapd[1].set_neighbor('12:00:00:00:00:01', 'TestFT',
'1200000000018f0000005101060603000000')
self.validate()
def setUp(self):
self.bss_hostapd[0].reload()
self.bss_hostapd[0].wait_for_event("AP-ENABLED")
def tearDown(self):
os.system('ip link set "' + self.bss_hostapd[0].ifname + '" down')
os.system('ip link set "' + self.bss_hostapd[1].ifname + '" down')
os.system('ip link set "' + self.bss_hostapd[0].ifname + '" up')
os.system('ip link set "' + self.bss_hostapd[1].ifname + '" up')
self.bss_hostapd[0].remove_neighbor(self.bss_hostapd[1].bssid)
self.bss_hostapd[1].remove_neighbor(self.bss_hostapd[0].bssid)
@classmethod
def setUpClass(cls):
hwsim = Hwsim()
IWD.copy_to_storage('TestFT.psk')
cls.bss_hostapd = [ HostapdCLI(config='ft-psk-ccmp-1.conf'),
HostapdCLI(config='ft-psk-ccmp-2.conf') ]
cls.bss_hostapd[1].disable()
cls.bss_hostapd[0].set_value('ocv', '0')
cls.bss_hostapd[0].set_value('ieee80211w', '0')
cls.rule0 = hwsim.rules.create()
cls.rule0.source = 'any'
cls.rule0.bidirectional = True
cls.rule0.signal = -8000
cls.rule0.enabled = True
# Set interface addresses to those expected by hostapd config files
os.system('ip link set dev "' + cls.bss_hostapd[0].ifname + '" down')
os.system('ip link set dev "' + cls.bss_hostapd[0].ifname + '" addr 12:00:00:00:00:01 up')
os.system('ip link set dev "' + cls.bss_hostapd[1].ifname + '" down')
os.system('ip link set dev "' + cls.bss_hostapd[1].ifname + '" addr 12:00:00:00:00:02 up')
@classmethod
def tearDownClass(cls):
IWD.clear_storage()
cls.bss_hostapd = None
cls.rule0.remove()
if __name__ == '__main__':
unittest.main(exit=True)