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iwd/autotests/testDPP/pkex_test.py
James Prestwood 4b147217ac auto-t: add checks for DPP 3rd party settings
Ensure the newly configured profile contains the additional
SendHostname setting that the configurator sends.
2023-11-17 09:49:06 -06:00

253 lines
8.5 KiB
Python

#!/usr/bin/python3
import unittest
import sys
sys.path.append('../util')
from iwd import IWD, SharedCodeAgent
from iwd import DeviceProvisioning
from wpas import Wpas
from hostapd import HostapdCLI
from hwsim import Hwsim
from config import ctx
from time import time
import os
class Test(unittest.TestCase):
def start_wpas_pkex(self, code, curve=None, **kwargs):
self.wpas.dpp_bootstrap_gen(type='pkex', curve=curve)
self.wpas.dpp_pkex_add(code=code, **kwargs)
if kwargs.get('role', 'configurator') == 'configurator':
self.wpas.dpp_configurator_create()
self.wpas.dpp_listen(2437)
def stop_wpas_pkex(self):
self.wpas.dpp_pkex_remove()
self.wpas.dpp_stop_listen()
self.wpas.dpp_configurator_remove()
def start_iwd_pkex_configurator(self, device, agent=False):
self.hapd.reload()
self.hapd.wait_for_event('AP-ENABLED')
IWD.copy_to_storage('ssidCCMP.psk')
device.autoconnect = True
condition = 'obj.state == DeviceState.connected'
self.wd.wait_for_object_condition(device, condition)
if agent:
self.agent = SharedCodeAgent(codes = {"test": "secret123"})
device.dpp_pkex_start_configurator(self.agent.path)
else:
device.dpp_pkex_configure_enrollee('secret123', identifier="test")
#
# WPA Supplicant has awful handling of retransmissions and no-ACK
# conditions. It only handles retransmitting the exchange request when
# there is no-ACK, which makes zero sense since its a broadcast...
#
# So, really, testing against wpa_supplicant is fragile and dependent on
# how the scheduling works out. If IWD doesn't ACK due to being on the
# next frequency or in between offchannel requests wpa_supplicant gets
# into a state where it thinks a PKEX session has been started (having
# received the exchange request) but will only accept commit-reveal
# frames. IWD is unaware because it never got a response so it keeps
# sending exchange requests which are ignored.
#
# Nevertheless we should still test against wpa_supplicant for
# compatibility so attempt to detect this case and restart the
# wpa_supplicant configurator.
#
def restart_wpas_if_needed(self):
i = 0
while i < 10:
data = self.wpas.wait_for_event("DPP-RX")
self.assertIn("type=7", data)
data = self.wpas.wait_for_event("DPP-TX")
self.assertIn("type=8", data)
data = self.wpas.wait_for_event("DPP-TX-STATUS")
if "result=no-ACK" in data:
self.stop_wpas_pkex()
self.start_wpas_pkex('secret123', identifier="test")
else:
return
i += 1
raise Exception("wpa_supplicant could not complete PKEX after 10 retries")
def test_pkex_iwd_as_enrollee(self):
self.start_wpas_pkex('secret123', identifier="test")
self.device[0].dpp_pkex_enroll('secret123', identifier="test")
self.restart_wpas_if_needed()
self.wpas.wait_for_event("DPP-AUTH-SUCCESS")
def test_pkex_iwd_as_enrollee_retransmit(self):
self.rule_reveal_req.enabled = True
self.start_wpas_pkex('secret123', identifier="test")
self.device[0].dpp_pkex_enroll('secret123', identifier="test")
self.restart_wpas_if_needed()
self.wpas.wait_for_event("DPP-AUTH-SUCCESS")
def test_pkex_unsupported_version(self):
self.start_wpas_pkex('secret123', identifier="test", version=2)
now = time()
self.device[0].dpp_pkex_enroll('secret123', identifier="test")
condition = "obj.started == False"
self.wd.wait_for_object_condition(self.device[0]._sc_device_provisioning,
condition, max_wait=125)
# Check the enrollee stopped after 2 minutes
elapsed = time() - now
self.assertLess(elapsed, 125)
def test_pkex_configurator_timeout(self):
self.start_iwd_pkex_configurator(self.device[0])
now = time()
condition = "obj.started == False"
self.wd.wait_for_object_condition(self.device[0]._sc_device_provisioning,
condition, max_wait=125)
# Check the enrollee stopped after 2 minutes
elapsed = time() - now
self.assertLess(elapsed, 125)
def test_pkex_iwd_as_configurator(self):
self.start_iwd_pkex_configurator(self.device[0])
self.start_wpas_pkex('secret123', identifier="test", initiator=True,
role='enrollee')
self.wpas.wait_for_event("DPP-AUTH-SUCCESS")
self.wpas.wait_for_event("DPP-CONF-RECEIVED")
def test_pkex_iwd_as_configurator_retransmit(self):
self.rule_xchg_resp.enabled = True
self.rule_reveal_resp.enabled = True
self.start_iwd_pkex_configurator(self.device[0])
self.start_wpas_pkex('secret123', identifier="test", initiator=True,
role='enrollee')
self.wpas.wait_for_event("DPP-AUTH-SUCCESS")
self.wpas.wait_for_event("DPP-CONF-RECEIVED")
def test_pkex_iwd_as_configurator_bad_group(self):
self.start_iwd_pkex_configurator(self.device[0])
self.start_wpas_pkex('secret123', identifier="test", initiator=True,
role='enrollee', curve='P-384')
self.wpas.wait_for_event(f"DPP-RX src={self.device[0].address} freq=2437 type=8")
self.wpas.wait_for_event("DPP-FAIL")
def test_pkex_iwd_to_iwd(self):
self.start_iwd_pkex_configurator(self.device[0])
self.device[1].dpp_pkex_enroll('secret123', identifier="test")
self.device[1].autoconnect = True
condition = 'obj.state == DeviceState.connected'
self.wd.wait_for_object_condition(self.device[1], condition)
# Check additional settings were carried over
with open('/tmp/ns0/ssidCCMP.psk', 'r') as f:
settings = f.read()
self.assertIn("SendHostname=true", settings)
def test_pkex_configurator_with_agent(self):
self.start_iwd_pkex_configurator(self.device[0], agent=True)
self.device[1].dpp_pkex_enroll('secret123', identifier="test")
self.device[1].autoconnect = True
condition = 'obj.state == DeviceState.connected'
self.wd.wait_for_object_condition(self.device[1], condition)
self.agent = None
def setUp(self):
ns0 = ctx.get_namespace('ns0')
self.wpas = Wpas('wpas.conf')
self.wd = IWD(True)
self.wd_ns0 = IWD(True, iwd_storage_dir='/tmp/ns0', namespace=ns0)
self.device = []
self.device.append(self.wd.list_devices(1)[0])
self.device.append(self.wd_ns0.list_devices(1)[0])
self.hapd = HostapdCLI('hostapd.conf')
self.hapd.disable()
self.hwsim = Hwsim()
self.rule_xchg_resp = self.hwsim.rules.create()
self.rule_xchg_resp.prefix = 'd0'
self.rule_xchg_resp.match_offset = 24
self.rule_xchg_resp.match = '04 09 50 6f 9a 1a 01 08'
self.rule_xchg_resp.match_times = 1
self.rule_xchg_resp.drop = True
self.rule_reveal_resp = self.hwsim.rules.create()
self.rule_reveal_resp.prefix = 'd0'
self.rule_reveal_resp.match_offset = 24
self.rule_reveal_resp.match = '04 09 50 6f 9a 1a 01 0a'
self.rule_reveal_resp.match_times = 1
self.rule_reveal_resp.drop = True
self.rule_reveal_req = self.hwsim.rules.create()
self.rule_reveal_req.prefix = 'd0'
self.rule_reveal_req.match_offset = 24
self.rule_reveal_req.match = '04 09 50 6f 9a 1a 01 09'
self.rule_reveal_req.match_times = 1
self.rule_reveal_req.drop = True
def tearDown(self):
# Tests end in various states, don't fail when tearing down.
try:
self.device[0].disconnect()
self.device[0].dpp_pkex_stop()
self.device[1].disconnect()
self.device[1].dpp_pkex_stop()
except:
pass
self.wpas.dpp_configurator_remove()
self.wpas.clean_up()
self.wd = None
self.wd_ns0 = None
self.device = None
self.wpas = None
self.hapd = None
self.rule_xchg_resp = None
IWD.clear_storage()
@classmethod
def setUpClass(cls):
pass
@classmethod
def tearDownClass(cls):
pass
if __name__ == '__main__':
unittest.main(exit=True)