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iwd/autotests/testSAQuery-spoofing/connection_test.py

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auto-t: add SA Query tests Two autotests: 1. Tests SA Query procedure when the AP goes down. In this case the AP goes down ungracefully, now allowing it to send out any deauth frames. When the AP comes back up, IWD still thinks its connected. The AP will then send unprotected disassociate frames so the client can re-connect. This kicks off the SA Query procedure, which the AP will not respond to. At this point we can deauth and reconnect to the AP. 2. Test SA Query procedure when a disassociate frame has been spoofed. In this case we receive an unprotected disassociate frame and start SA Query. The AP should then respond to the SA query within the timeout. We then know the frame was spoofed and can remain connected.
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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 hwsim import Hwsim
autotests: Use hostapd_map in place of wiphy_map In the tests that only want to iterate over the hostapd interfaces, simplify the pattern of walking through the whole wiphy_map tree by instead using the hostapd_map variable which is already filtered to only contain hostapd interfaces.
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from hostapd import HostapdCLI, hostapd_map
auto-t: add SA Query tests Two autotests: 1. Tests SA Query procedure when the AP goes down. In this case the AP goes down ungracefully, now allowing it to send out any deauth frames. When the AP comes back up, IWD still thinks its connected. The AP will then send unprotected disassociate frames so the client can re-connect. This kicks off the SA Query procedure, which the AP will not respond to. At this point we can deauth and reconnect to the AP. 2. Test SA Query procedure when a disassociate frame has been spoofed. In this case we receive an unprotected disassociate frame and start SA Query. The AP should then respond to the SA query within the timeout. We then know the frame was spoofed and can remain connected.
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from time import sleep
class Test(unittest.TestCase):
def test_connection_success(self):
hwsim = Hwsim()
autotests: Use hostapd_map in place of wiphy_map In the tests that only want to iterate over the hostapd interfaces, simplify the pattern of walking through the whole wiphy_map tree by instead using the hostapd_map variable which is already filtered to only contain hostapd interfaces.
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intf = list(hostapd_map.values())[0]
hostapd = HostapdCLI(intf)
for path in hwsim.radios:
radio = hwsim.radios[path]
if radio.name == intf.wiphy.name:
break
auto-t: add SA Query tests Two autotests: 1. Tests SA Query procedure when the AP goes down. In this case the AP goes down ungracefully, now allowing it to send out any deauth frames. When the AP comes back up, IWD still thinks its connected. The AP will then send unprotected disassociate frames so the client can re-connect. This kicks off the SA Query procedure, which the AP will not respond to. At this point we can deauth and reconnect to the AP. 2. Test SA Query procedure when a disassociate frame has been spoofed. In this case we receive an unprotected disassociate frame and start SA Query. The AP should then respond to the SA query within the timeout. We then know the frame was spoofed and can remain connected.
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wd = IWD()
psk_agent = PSKAgent("secret123")
wd.register_psk_agent(psk_agent)
auto-t: removed ';' from many autotests At some point a stray ';' got added into an autotest in a section of code that is heavily copy pasted. So in turn nearly all the autotests have this stray ';' after list_devices (and a few in other places).
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devices = wd.list_devices(1)
auto-t: add SA Query tests Two autotests: 1. Tests SA Query procedure when the AP goes down. In this case the AP goes down ungracefully, now allowing it to send out any deauth frames. When the AP comes back up, IWD still thinks its connected. The AP will then send unprotected disassociate frames so the client can re-connect. This kicks off the SA Query procedure, which the AP will not respond to. At this point we can deauth and reconnect to the AP. 2. Test SA Query procedure when a disassociate frame has been spoofed. In this case we receive an unprotected disassociate frame and start SA Query. The AP should then respond to the SA query within the timeout. We then know the frame was spoofed and can remain connected.
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device = devices[0]
condition = 'not obj.scanning'
wd.wait_for_object_condition(device, condition)
device.scan()
condition = 'not obj.scanning'
wd.wait_for_object_condition(device, condition)
auto-t: update tests to use get_ordered_network call
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ordered_network = device.get_ordered_network('ssidCCMP')
auto-t: add SA Query tests Two autotests: 1. Tests SA Query procedure when the AP goes down. In this case the AP goes down ungracefully, now allowing it to send out any deauth frames. When the AP comes back up, IWD still thinks its connected. The AP will then send unprotected disassociate frames so the client can re-connect. This kicks off the SA Query procedure, which the AP will not respond to. At this point we can deauth and reconnect to the AP. 2. Test SA Query procedure when a disassociate frame has been spoofed. In this case we receive an unprotected disassociate frame and start SA Query. The AP should then respond to the SA query within the timeout. We then know the frame was spoofed and can remain connected.
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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.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
# TODO: for some reason hostapd does not respond to SA query if done
# too soon after connection.
sleep(1)
# Spoof a disassociate frame. This will kick off SA Query procedure.
hwsim.spoof_disassociate(radio, hostapd.get_freq(), device.address)
# sleep to ensure hostapd responds and SA Query does not timeout
sleep(4)
# Since disassociate was spoofed we should still be connected
condition = 'obj.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
device.disconnect()
condition = 'not obj.connected'
wd.wait_for_object_condition(ordered_network.network_object, condition)
wd.unregister_psk_agent(psk_agent)
@classmethod
def setUpClass(cls):
pass
@classmethod
def tearDownClass(cls):
IWD.clear_storage()
if __name__ == '__main__':
unittest.main(exit=True)
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