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iwd/autotests/testBSSBlacklist/temp_blacklist_test.py

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auto-t: test for temporary blacklist The simplest way to test this was to create a new AP, where max_num_sta=1. This only allows a single STA to connect to this AP. We connect a device to this AP, then try and connect with another. This results in hostapd failing with DENIED_NO_MORE_STAS, which will cause a temporary blacklist. We can then disconnect both devices, and reconnect the device that previously got denied. If it connects then we know the blacklist only persisted for that earlier connection.
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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
from hostapd import HostapdCLI
from hostapd import hostapd_map
from hwsim import Hwsim
import time
class Test(unittest.TestCase):
def test_connection_success(self):
hwsim = Hwsim()
auto-t: updated autotests to use hwsim.get_radio This removes all the duplicated code where the interfaces are iterated and the radio/hostapd instances are created. Instead the two new APIs are used to get each instance, e.g.: hapd = HostapdCLI(config='ssid.conf') radio = hwsim.get_radio('radX')
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bss_hostapd = [ HostapdCLI(config='ssid1.conf'),
HostapdCLI(config='ssid2.conf'),
HostapdCLI(config='ssid3.conf') ]
bss_radio = [ hwsim.get_radio('rad0'),
hwsim.get_radio('rad1'),
hwsim.get_radio('rad2') ]
auto-t: test for temporary blacklist The simplest way to test this was to create a new AP, where max_num_sta=1. This only allows a single STA to connect to this AP. We connect a device to this AP, then try and connect with another. This results in hostapd failing with DENIED_NO_MORE_STAS, which will cause a temporary blacklist. We can then disconnect both devices, and reconnect the device that previously got denied. If it connects then we know the blacklist only persisted for that earlier connection.
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rule0 = hwsim.rules.create()
rule0.source = bss_radio[0].addresses[0]
rule0.bidirectional = True
rule0.signal = -8000
rule1 = hwsim.rules.create()
rule1.source = bss_radio[1].addresses[0]
rule1.bidirectional = True
rule1.signal = -2500
rule2 = hwsim.rules.create()
rule2.source = bss_radio[2].addresses[0]
rule2.bidirectional = True
rule2.signal = -2000
wd = IWD(True, '/tmp')
psk_agent = PSKAgent("secret123")
wd.register_psk_agent(psk_agent)
dev1, dev2 = wd.list_devices(2)
condition = 'not obj.scanning'
wd.wait_for_object_condition(dev1, condition)
dev1.scan()
condition = 'not obj.scanning'
wd.wait_for_object_condition(dev1, condition)
ordered_network = dev1.get_ordered_network("TestBlacklist")
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()
self.assertIn(dev1.address, bss_hostapd[2].list_sta())
# dev1 now connected, this should max out the first AP, causing the next
# connection to fail to this AP.
condition = 'not obj.scanning'
wd.wait_for_object_condition(dev2, condition)
dev2.scan()
condition = 'not obj.scanning'
wd.wait_for_object_condition(dev2, condition)
ordered_network = dev2.get_ordered_network("TestBlacklist")
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()
# We should have temporarily blacklisted the first BSS, and connected
# to this one.
self.assertIn(dev2.address, bss_hostapd[1].list_sta())
# Now check that the first BSS is still not blacklisted. We can
# disconnect dev1, opening up the AP for more connections
dev1.disconnect()
dev2.disconnect()
condition = 'not obj.scanning'
wd.wait_for_object_condition(dev2, condition)
dev2.scan()
condition = 'not obj.scanning'
wd.wait_for_object_condition(dev2, condition)
ordered_network = dev2.get_ordered_network("TestBlacklist")
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()
self.assertIn(dev2.address, bss_hostapd[2].list_sta())
wd.unregister_psk_agent(psk_agent)
@classmethod
def setUpClass(cls):
IWD.copy_to_storage('main.conf')
@classmethod
def tearDownClass(cls):
IWD.clear_storage()
if __name__ == '__main__':
unittest.main(exit=True)
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