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https://git.kernel.org/pub/scm/network/wireless/iwd.git
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a507c08bfe
When running this test with others the hostapd neighbors are already grouped which lets the test pass. On its own this does not happen and it fails.
238 lines
8.3 KiB
Python
238 lines
8.3 KiB
Python
#! /usr/bin/python3
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import unittest
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import os, sys
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sys.path.append('../util')
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from iwd import IWD
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from iwd import NetworkType, DeviceState
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from hwsim import Hwsim
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from hostapd import HostapdCLI
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import testutil
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class Test(unittest.TestCase):
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def connect(self, wd, device, hostapd):
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ordered_network = device.get_ordered_network('TestFT', full_scan=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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device.connect_bssid(hostapd.bssid)
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condition = 'obj.state == DeviceState.connected'
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wd.wait_for_object_condition(device, condition)
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hostapd.wait_for_event('AP-STA-CONNECTED %s' % device.address)
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testutil.test_iface_operstate(device.name)
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testutil.test_ifaces_connected(hostapd.ifname, device.name)
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def verify_roam(self, wd, device, prev, new):
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from_condition = 'obj.state == DeviceState.roaming'
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to_condition = 'obj.state == DeviceState.connected'
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wd.wait_for_object_change(device, from_condition, to_condition)
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new.wait_for_event('AP-STA-CONNECTED %s' % device.address)
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testutil.test_iface_operstate(device.name)
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testutil.test_ifaces_connected(new.ifname, device.name)
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self.assertRaises(Exception, testutil.test_ifaces_connected,
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(prev.ifname, device.name, True, True))
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# FT-over-Air failure, should stay connected
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def test_ft_over_air_failure(self):
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self.rule2.enabled = True
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self.rule3.enabled = True
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device = self.wd.list_devices(1)[0]
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self.connect(self.wd, device, self.bss_hostapd[0])
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self.rule0.enabled = True
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# IWD should connect, then attempt a roam to BSS 1, which should fail...
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device.wait_for_event('ft-roam-failed', timeout=60)
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# ... but IWD should remain connected
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self.assertTrue(device.state == DeviceState.connected)
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self.rule0.enabled = False
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# IWD should then try BSS 2, and succeed
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device.wait_for_event('ft-roaming', timeout=60)
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self.verify_roam(self.wd, device, self.bss_hostapd[0], self.bss_hostapd[2])
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self.bss_hostapd[2].deauthenticate(device.address)
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# Tests that an associate even should cause a disconnect
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def test_ft_over_air_assoc_timeout(self):
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self.rule2.enabled = True
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self.rule3.enabled = True
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self.assoc_rule.enabled = True
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device = self.wd.list_devices(1)[0]
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self.connect(self.wd, device, self.bss_hostapd[0])
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device.wait_for_event('ft-roaming', timeout=60)
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condition = 'obj.state == DeviceState.disconnected'
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self.wd.wait_for_object_condition(device, condition)
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# FT-over-Air failure with Invalid PMKID, should reassociate
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def test_ft_over_air_fallback(self):
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self.rule_bss0.signal = -8000
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self.rule_bss0.enabled = True
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self.rule_bss1.signal = -7500
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self.rule_bss1.enabled = True
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self.rule_bss2.signal = -6000
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self.rule_bss2.enabled = True
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# This will cause this BSS to reject any FT roams as its unable to
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# get keys from other APs
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self.bss_hostapd[2].set_value('ft_psk_generate_local', '0')
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self.bss_hostapd[2].reload()
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device = self.wd.list_devices(1)[0]
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self.connect(self.wd, device, self.bss_hostapd[0])
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# IWD should connect, then attempt a roam to BSS 1, which should
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# fail and cause a fallback to reassociation
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device.wait_for_event('ft-fallback-to-reassoc', timeout=60)
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device.wait_for_event('roaming', timeout=60)
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self.verify_roam(self.wd, device, self.bss_hostapd[0], self.bss_hostapd[2])
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# Trigger another roam
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self.rule_bss2.signal = -8000
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device.wait_for_event('ft-roaming', timeout=60)
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# Ensure an FT roam back to a properly configured AP works.
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self.verify_roam(self.wd, device, self.bss_hostapd[2], self.bss_hostapd[1])
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self.bss_hostapd[1].deauthenticate(device.address)
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condition = 'obj.state == DeviceState.disconnected'
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self.wd.wait_for_object_condition(device, condition)
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# FT-over-Air failure with Invalid PMKID. The ranking is such that other
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# FT candidates are available so it should FT elsewhere rather than
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# retry with reassociation
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def test_ft_over_air_fallback_retry_ft(self):
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self.rule_bss0.signal = -8000
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self.rule_bss0.enabled = True
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self.rule_bss1.signal = -7300
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self.rule_bss1.enabled = True
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self.rule_bss2.signal = -7100
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self.rule_bss2.enabled = True
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# This will cause this BSS to reject any FT roams as its unable to
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# get keys from other APs
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self.bss_hostapd[2].set_value('ft_psk_generate_local', '0')
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self.bss_hostapd[2].reload()
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device = self.wd.list_devices(1)[0]
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self.connect(self.wd, device, self.bss_hostapd[0])
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# IWD should connect, then attempt a roam to BSS 1, which should
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# fail and cause the rank to be re-computed. This should then put
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# bss 1 as the next candidate (since the FT factor is removed)
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device.wait_for_event('ft-fallback-to-reassoc', timeout=60)
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device.wait_for_event('ft-roaming', timeout=60)
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self.verify_roam(self.wd, device, self.bss_hostapd[0], self.bss_hostapd[1])
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self.bss_hostapd[1].deauthenticate(device.address)
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condition = 'obj.state == DeviceState.disconnected'
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self.wd.wait_for_object_condition(device, condition)
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def setUp(self):
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self.wd = IWD(True)
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def tearDown(self):
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os.system('ip link set "' + self.bss_hostapd[0].ifname + '" down')
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os.system('ip link set "' + self.bss_hostapd[1].ifname + '" down')
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os.system('ip link set "' + self.bss_hostapd[0].ifname + '" up')
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os.system('ip link set "' + self.bss_hostapd[1].ifname + '" up')
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self.rule0.enabled = False
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self.rule1.enabled = False
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self.rule2.enabled = False
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self.rule3.enabled = False
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self.rule_bss0.enabled = False
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self.rule_bss1.enabled = False
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self.rule_bss2.enabled = False
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self.assoc_rule.enabled = False
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for hapd in self.bss_hostapd:
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hapd.default()
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self.wd.stop()
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self.wd = None
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@classmethod
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def setUpClass(cls):
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hwsim = Hwsim()
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IWD.copy_to_storage('TestFT.psk')
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cls.bss_hostapd = [ HostapdCLI(config='ft-psk-ccmp-1.conf'),
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HostapdCLI(config='ft-psk-ccmp-2.conf'),
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HostapdCLI(config='ft-psk-ccmp-3.conf') ]
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cls.bss_hostapd[0].set_address('12:00:00:00:00:01')
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cls.bss_hostapd[1].set_address('12:00:00:00:00:02')
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cls.bss_hostapd[2].set_address('12:00:00:00:00:03')
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# Drop Authenticate frames
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cls.rule0 = hwsim.rules.create()
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cls.rule0.source = hwsim.get_radio('rad1').addresses[0]
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cls.rule0.prefix = 'b0'
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cls.rule0.drop = True
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# Drop Associate frames
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cls.assoc_rule = hwsim.rules.create()
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cls.assoc_rule.prefix = '20'
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cls.assoc_rule.drop = True
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# Drop Action frames
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cls.rule1 = hwsim.rules.create()
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cls.rule1.bidirectional = True
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cls.rule1.prefix = 'd0'
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cls.rule1.drop = True
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# Causes IWD to immediately roam away from BSS 0
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cls.rule2 = hwsim.rules.create()
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cls.rule2.source = hwsim.get_radio('rad0').addresses[0]
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cls.rule2.signal = -8000
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# Causes IWD to first prefer BSS 1 to roam, then BSS 2.
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cls.rule3 = hwsim.rules.create()
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cls.rule3.source = hwsim.get_radio('rad2').addresses[0]
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cls.rule3.signal = -7000
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cls.rule_bss0 = hwsim.rules.create()
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cls.rule_bss0.source = hwsim.get_radio('rad0').addresses[0]
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cls.rule_bss1 = hwsim.rules.create()
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cls.rule_bss1.source = hwsim.get_radio('rad1').addresses[0]
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cls.rule_bss2 = hwsim.rules.create()
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cls.rule_bss2.source = hwsim.get_radio('rad2').addresses[0]
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HostapdCLI.group_neighbors(*cls.bss_hostapd)
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@classmethod
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def tearDownClass(cls):
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IWD.clear_storage()
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cls.bss_hostapd = None
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cls.rule0.remove()
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cls.rule1.remove()
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cls.rule2.remove()
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cls.rule3.remove()
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cls.assoc_rule.remove()
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if __name__ == '__main__':
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unittest.main(exit=True)
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