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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 hwsim import Hwsim
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
auto-t: fix blacklist test ranking The scan ranking logic was previously changed to be based off a theoretical calculated data rate rather than signal strength. For HT/VHT networks there are many data points that can be used for this calculation, but non HT/VHT networks are estimated based on a simple table mapping signal strengths to data rates. This table starts at a signal strength of -65 dBm and decreases from there, meaning any signal strengths greater than -65 dBm will end up getting the same ranking. This poses a problem for 3/4 blacklisting tests as they set signal strengths ranging from -20 to -40 dBm. IWD will then autoconnect to whatever network popped up first, which may not be the expected network. To fix this the signal strengths were changed to much lower values which ensures IWD picks the expected network.
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rule1.signal = -7000
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.
2019-03-01 19:55:05 +01:00
rule2 = hwsim.rules.create()
rule2.source = bss_radio[2].addresses[0]
rule2.bidirectional = True
rule2.signal = -2000
auto-t: fix testBSSBlacklist There were a number of fixes here. The waits were changed to wait on the device state instead of the network state and hwsim rules were removed after the test as to not interfere with future tests. One of the rules was setting the signal to -10000 wich was causing the ranking to be zero.
2020-09-11 01:12:41 +02:00
wd = IWD(True)
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.
2019-03-01 19:55:05 +01:00
psk_agent = PSKAgent("secret123")
wd.register_psk_agent(psk_agent)
dev1, dev2 = wd.list_devices(2)
auto-t: update all tests to remove bad scanning logic This changes all tests to use the default get_ordered_network behavior rather than some custom or incorrect logic. Any use of scan_if_needed=True has been removed since this is now the default. Also any explicit scanning has been removed for tests which do not require it (where the default behavior is good enough).
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ordered_network = dev1.get_ordered_network("TestBlacklist")
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.
2019-03-01 19:55:05 +01:00
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()
auto-t: fix testBSSBlacklist There were a number of fixes here. The waits were changed to wait on the device state instead of the network state and hwsim rules were removed after the test as to not interfere with future tests. One of the rules was setting the signal to -10000 wich was causing the ranking to be zero.
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condition = 'obj.state == DeviceState.connected'
wd.wait_for_object_condition(dev1, condition)
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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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.
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()
auto-t: fix testBSSBlacklist There were a number of fixes here. The waits were changed to wait on the device state instead of the network state and hwsim rules were removed after the test as to not interfere with future tests. One of the rules was setting the signal to -10000 wich was causing the ranking to be zero.
2020-09-11 01:12:41 +02:00
condition = 'obj.state == DeviceState.connected'
wd.wait_for_object_condition(dev2, condition)
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.
2019-03-01 19:55:05 +01:00
# 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()
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()
auto-t: fix testBSSBlacklist There were a number of fixes here. The waits were changed to wait on the device state instead of the network state and hwsim rules were removed after the test as to not interfere with future tests. One of the rules was setting the signal to -10000 wich was causing the ranking to be zero.
2020-09-11 01:12:41 +02:00
condition = 'obj.state == DeviceState.connected'
wd.wait_for_object_condition(dev2, condition)
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.
2019-03-01 19:55:05 +01:00
self.assertIn(dev2.address, bss_hostapd[2].list_sta())
wd.unregister_psk_agent(psk_agent)
auto-t: fix testBSSBlacklist There were a number of fixes here. The waits were changed to wait on the device state instead of the network state and hwsim rules were removed after the test as to not interfere with future tests. One of the rules was setting the signal to -10000 wich was causing the ranking to be zero.
2020-09-11 01:12:41 +02:00
rule0.remove()
rule1.remove()
rule2.remove()
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.
2019-03-01 19:55:05 +01:00
@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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