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iwd/autotests/testRoamRetry/stop_retry_test.py

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#!/usr/bin/python3
import unittest
import sys
sys.path.append('../util')
import iwd
from iwd import IWD
from iwd import PSKAgent
from iwd import NetworkType
import testutil
from hostapd import HostapdCLI
from hwsim import Hwsim
class Test(unittest.TestCase):
# Test that we do not periodically retry roaming if the transision looks
# like this: LOW [roam] [new bss] HIGH.
def test_stop_retry(self):
hwsim = Hwsim()
bss_hostapd = [ HostapdCLI(config='ssid1.conf'),
HostapdCLI(config='ssid2.conf') ]
bss_radio = [ hwsim.get_radio('rad0'),
hwsim.get_radio('rad1') ]
rule0 = hwsim.rules.create()
rule0.source = bss_radio[0].addresses[0]
rule0.bidirectional = True
rule1 = hwsim.rules.create()
rule1.source = bss_radio[1].addresses[0]
rule1.bidirectional = True
# Fill in the neighbor AP tables in both BSSes. By default each
# instance knows only about current BSS, even inside one hostapd
# process.
# Roaming still works without the neighbor AP table but neighbor
# reports have to be disabled in the .conf files
bss0_nr = ''.join(bss_radio[0].addresses[0].split(':')) + \
'8f0000005101060603000000'
bss1_nr = ''.join(bss_radio[1].addresses[0].split(':')) + \
'8f0000005102060603000000'
bss_hostapd[0].set_neighbor(bss_radio[1].addresses[0], 'TestRoamRetry',
bss1_nr)
bss_hostapd[1].set_neighbor(bss_radio[0].addresses[0], 'TestRoamRetry',
bss0_nr)
# Start in the vicinity of BSS 0, check that iwd connects to BSS 0
rule0.signal = -2000
rule1.signal = -5000
wd = IWD()
psk_agent = PSKAgent("secret123")
wd.register_psk_agent(psk_agent)
devices = wd.list_devices(1)
device = devices[0]
ordered_network = device.get_ordered_network('TestRoamRetry')
self.assertEqual(ordered_network.type, NetworkType.psk)
condition = 'not obj.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
ordered_network.network_object.connect()
condition = 'obj.state == DeviceState.connected'
wd.wait_for_object_condition(device, condition)
self.assertTrue(bss_hostapd[0].list_sta())
self.assertFalse(bss_hostapd[1].list_sta())
# Now push the signal below the RSSI threshold and check that iwd
# connects to BSS 1
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(bss_hostapd[1].list_sta())
# Now make sure that we don't roam anymore. In order to catch this via
# DeviceState, a suitable roaming target needs to be available. So jack
# up the RSSI of BSS 0 again. The retry interval is 60 seconds, so we
# should have roamed within that timeframe. Wait just a little longer
# to account for the slowness of the autotest environment.
rule0.signal = -2000
condition = 'obj.state == DeviceState.roaming'
self.assertRaises(TimeoutError, wd.wait_for_object_condition, device,
condition, max_wait=10)
device.disconnect()
condition = 'not obj.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
wd.unregister_psk_agent(psk_agent)
rule0.remove()
rule1.remove()
@classmethod
def setUpClass(cls):
pass
@classmethod
def tearDownClass(cls):
IWD.clear_storage()
if __name__ == '__main__':
unittest.main(exit=True)