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https://git.kernel.org/pub/scm/network/wireless/iwd.git
synced 2024-10-04 02:18:49 +02:00
f902c7019d
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.
133 lines
3.8 KiB
Python
133 lines
3.8 KiB
Python
#!/usr/bin/python3
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import unittest
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import sys
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sys.path.append('../util')
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import iwd
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from iwd import IWD
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from iwd import PSKAgent
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from iwd import NetworkType
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from hostapd import HostapdCLI
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from hwsim import Hwsim
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class Test(unittest.TestCase):
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def test_connection_success(self):
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hwsim = Hwsim()
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bss_hostapd = [ HostapdCLI(config='ssid1.conf'),
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HostapdCLI(config='ssid2.conf'),
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HostapdCLI(config='ssid3.conf') ]
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bss_radio = [ hwsim.get_radio('rad0'),
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hwsim.get_radio('rad1'),
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hwsim.get_radio('rad2') ]
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rule0 = hwsim.rules.create()
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rule0.source = bss_radio[0].addresses[0]
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rule0.bidirectional = True
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rule0.signal = -8000
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rule1 = hwsim.rules.create()
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rule1.source = bss_radio[1].addresses[0]
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rule1.bidirectional = True
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rule1.signal = -7000
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rule2 = hwsim.rules.create()
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rule2.source = bss_radio[2].addresses[0]
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rule2.bidirectional = True
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rule2.signal = -2000
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wd = IWD(True)
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psk_agent = PSKAgent("secret123")
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wd.register_psk_agent(psk_agent)
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dev1, dev2 = wd.list_devices(2)
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ordered_network = dev1.get_ordered_network("TestBlacklist", scan_if_needed=True)
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self.assertEqual(ordered_network.type, NetworkType.psk)
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condition = 'not obj.connected'
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wd.wait_for_object_condition(ordered_network.network_object, condition)
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ordered_network.network_object.connect()
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condition = 'obj.state == DeviceState.connected'
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wd.wait_for_object_condition(dev1, condition)
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self.assertIn(dev1.address, bss_hostapd[2].list_sta())
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# dev1 now connected, this should max out the first AP, causing the next
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# connection to fail to this AP.
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condition = 'not obj.scanning'
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wd.wait_for_object_condition(dev2, condition)
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dev2.scan()
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condition = 'not obj.scanning'
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wd.wait_for_object_condition(dev2, condition)
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ordered_network = dev2.get_ordered_network("TestBlacklist")
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self.assertEqual(ordered_network.type, NetworkType.psk)
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condition = 'not obj.connected'
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wd.wait_for_object_condition(ordered_network.network_object, condition)
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ordered_network.network_object.connect()
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condition = 'obj.state == DeviceState.connected'
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wd.wait_for_object_condition(dev2, condition)
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# We should have temporarily blacklisted the first BSS, and connected
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# to this one.
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self.assertIn(dev2.address, bss_hostapd[1].list_sta())
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# Now check that the first BSS is still not blacklisted. We can
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# disconnect dev1, opening up the AP for more connections
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dev1.disconnect()
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dev2.disconnect()
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condition = 'not obj.scanning'
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wd.wait_for_object_condition(dev2, condition)
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dev2.scan()
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condition = 'not obj.scanning'
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wd.wait_for_object_condition(dev2, condition)
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ordered_network = dev2.get_ordered_network("TestBlacklist")
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self.assertEqual(ordered_network.type, NetworkType.psk)
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condition = 'not obj.connected'
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wd.wait_for_object_condition(ordered_network.network_object, condition)
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ordered_network.network_object.connect()
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condition = 'obj.state == DeviceState.connected'
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wd.wait_for_object_condition(dev2, condition)
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self.assertIn(dev2.address, bss_hostapd[2].list_sta())
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wd.unregister_psk_agent(psk_agent)
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rule0.remove()
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rule1.remove()
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rule2.remove()
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@classmethod
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def setUpClass(cls):
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IWD.copy_to_storage('main.conf')
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@classmethod
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def tearDownClass(cls):
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IWD.clear_storage()
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if __name__ == '__main__':
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unittest.main(exit=True)
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