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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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981892470a
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.
172 lines
5.0 KiB
Python
172 lines
5.0 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 hostapd import hostapd_map
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from wiphy import wiphy_map
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from hwsim import Hwsim
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import time
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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_radio = [None, None, None]
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bss_hostapd = [None, None, None]
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for wname in wiphy_map:
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wiphy = wiphy_map[wname]
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intf = list(wiphy.values())[0]
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if intf.config and '1' in intf.config:
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bss_idx = 0
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elif intf.config and '2' in intf.config:
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bss_idx = 1
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elif intf.config and '3' in intf.config:
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bss_idx = 2
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else:
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continue
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for path in hwsim.radios:
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radio = hwsim.radios[path]
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if radio.name == wname:
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break
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bss_radio[bss_idx] = radio
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bss_hostapd[bss_idx] = HostapdCLI(intf)
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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 = -2000
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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 = -8000
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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 = -10000
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wd = IWD(True, '/tmp')
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psk_agent = PSKAgent("secret123")
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wd.register_psk_agent(psk_agent)
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devices = wd.list_devices(1)
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device = devices[0]
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condition = 'not obj.scanning'
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wd.wait_for_object_condition(device, condition)
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device.scan()
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condition = 'not obj.scanning'
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wd.wait_for_object_condition(device, condition)
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ordered_network = device.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(wait=False)
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# Have AP1 drop all packets, should result in a connection timeout
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rule0.drop = True
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# Note the time so later we don't sleep any longer than required
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start = time.time()
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condition = 'obj.state == DeviceState.connected'
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wd.wait_for_object_condition(device, condition)
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# IWD should have attempted to connect to bss_hostapd[0], since its
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# signal strength was highest. But since we dropped all packets this
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# connect should fail, and the BSS should be blacklisted. Then we
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# should automatically try the next BSS in the list, which is
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# bss_hostapd[1]
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self.assertNotIn(device.address, bss_hostapd[0].list_sta())
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self.assertIn(device.address, bss_hostapd[1].list_sta())
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rule0.drop = False
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# Next try autoconnecting to a network with a blacklisted BSS. Since an
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# explicit disconnect call would disable autoconnect we reset
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# hostapd which will disconnect IWD.
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bss_hostapd[1].reload()
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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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# Now we wait... Autoconnect should take over
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condition = 'obj.state == DeviceState.connecting'
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wd.wait_for_object_condition(device, condition, 15)
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condition = 'obj.state == DeviceState.connected'
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wd.wait_for_object_condition(device, condition, 15)
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# Same as before, make sure we didn't connect to the blacklisted AP.
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self.assertNotIn(device.address, bss_hostapd[0].list_sta())
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self.assertIn(device.address, bss_hostapd[1].list_sta())
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# Wait for the blacklist to expire (10 seconds)
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elapsed = time.time() - start
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if elapsed < 11:
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time.sleep(11 - elapsed)
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device.disconnect()
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condition = 'not obj.scanning'
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wd.wait_for_object_condition(device, condition)
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device.scan()
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condition = 'not obj.scanning'
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wd.wait_for_object_condition(device, condition)
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ordered_network = device.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.connected'
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wd.wait_for_object_condition(ordered_network.network_object, condition)
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self.assertIn(device.address, bss_hostapd[0].list_sta())
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wd.unregister_psk_agent(psk_agent)
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del wd
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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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