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hostapd/tests/hwsim/test_ap_roam.py
Jouni Malinen ec277b5237 tests: Make ap_roam_open work with S1G channels 
If mac80211_hwsim has S1G channels enabled, the 15 second timeout was
not sufficiently long for full scan while connected.

Signed-off-by: Jouni Malinen <quic_jouni@quicinc.com>
2023-01-16 23:06:38 +02:00

397 lines
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Python
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# Roaming tests
# Copyright (c) 2013-2021, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
from remotehost import remote_compatible
import time
import logging
logger = logging.getLogger()
import hwsim_utils
import hostapd
from wpasupplicant import WpaSupplicant
@remote_compatible
def test_ap_roam_open(dev, apdev):
"""Roam between two open APs"""
hapd0 = hostapd.add_ap(apdev[0], {"ssid": "test-open"})
dev[0].connect("test-open", key_mgmt="NONE")
hwsim_utils.test_connectivity(dev[0], hapd0)
hapd1 = hostapd.add_ap(apdev[1], {"ssid": "test-open"})
dev[0].scan(type="ONLY", timeout=30)
dev[0].roam(apdev[1]['bssid'])
hwsim_utils.test_connectivity(dev[0], hapd1)
dev[0].roam(apdev[0]['bssid'])
hwsim_utils.test_connectivity(dev[0], hapd0)
def test_ap_ignore_bssid_all(dev, apdev, params):
"""Ensure we clear the ignore BSSID list if all visible APs reject"""
hapd0 = hostapd.add_ap(apdev[0], {"ssid": "test-open", "max_num_sta": "0"})
hapd1 = hostapd.add_ap(apdev[1], {"ssid": "test-open", "max_num_sta": "0"})
bss0 = hapd0.own_addr()
bss1 = hapd1.own_addr()
dev[0].connect("test-open", key_mgmt="NONE", scan_freq="2412",
wait_connect=False, bssid=bss0)
if not dev[0].wait_event(["CTRL-EVENT-AUTH-REJECT"], timeout=10):
raise Exception("AP 0 didn't reject us")
dev[0].request("REMOVE_NETWORK all")
dev[0].dump_monitor()
dev[0].connect("test-open", key_mgmt="NONE", scan_freq="2412",
wait_connect=False, bssid=bss1)
if not dev[0].wait_event(["CTRL-EVENT-AUTH-REJECT"], timeout=10):
raise Exception("AP 1 didn't reject us")
ignore_list = get_bssid_ignore_list(dev[0])
logger.info("ignore list: " + str(ignore_list))
dev[0].request("REMOVE_NETWORK all")
dev[0].dump_monitor()
hapd0.set("max_num_sta", "1")
# All visible APs were ignored; we should clear the ignore list and find
# the AP that now accepts us.
dev[0].scan_for_bss(bss0, freq=2412)
dev[0].connect("test-open", key_mgmt="NONE", scan_freq="2412", bssid=bss0)
@remote_compatible
def test_ap_roam_open_failed(dev, apdev):
"""Roam failure due to rejected authentication"""
hapd0 = hostapd.add_ap(apdev[0], {"ssid": "test-open"})
dev[0].connect("test-open", key_mgmt="NONE", scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd0)
params = {"ssid": "test-open", "max_num_sta": "0"}
hapd1 = hostapd.add_ap(apdev[1], params)
bssid = hapd1.own_addr()
dev[0].scan_for_bss(bssid, freq=2412)
dev[0].dump_monitor()
if "OK" not in dev[0].request("ROAM " + bssid):
raise Exception("ROAM failed")
ev = dev[0].wait_event(["CTRL-EVENT-AUTH-REJECT"], 1)
if not ev:
raise Exception("CTRL-EVENT-AUTH-REJECT was not seen")
dev[0].wait_connected(timeout=5)
hwsim_utils.test_connectivity(dev[0], hapd0)
def test_ap_roam_open_failed_ssid_mismatch(dev, apdev):
"""Roam failure due to SSID mismatch"""
hapd0 = hostapd.add_ap(apdev[0], {"ssid": "test-open"})
bssid0 = hapd0.own_addr()
hapd1 = hostapd.add_ap(apdev[1], {"ssid": "test-open2"})
bssid1 = hapd1.own_addr()
dev[0].flush_scan_cache()
dev[0].scan_for_bss(bssid0, freq=2412)
dev[0].scan_for_bss(bssid1, freq=2412)
dev[0].connect("test-open", key_mgmt="NONE", scan_freq="2412")
hapd0.wait_sta()
bssid = dev[0].get_status_field("bssid")
if bssid != bssid0:
raise Exception("Unexpected BSSID reported after initial connection: " + bssid)
if "FAIL" not in dev[0].request("ROAM " + bssid1):
raise Exception("ROAM succeed unexpectedly")
bssid = dev[0].get_status_field("bssid")
if bssid != bssid0:
raise Exception("Unexpected BSSID reported after failed roam attempt: " + bssid)
hwsim_utils.test_connectivity(dev[0], hapd0)
@remote_compatible
def test_ap_roam_wpa2_psk(dev, apdev):
"""Roam between two WPA2-PSK APs"""
params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
hapd0 = hostapd.add_ap(apdev[0], params)
dev[0].connect("test-wpa2-psk", psk="12345678")
hapd0.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd0)
hapd1 = hostapd.add_ap(apdev[1], params)
dev[0].scan(type="ONLY")
dev[0].roam(apdev[1]['bssid'])
hapd1.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd1)
dev[0].roam(apdev[0]['bssid'])
hapd0.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd0)
def test_ap_roam_wpa2_psk_pmf_mismatch(dev, apdev):
"""Roam between two WPA2-PSK APs - PMF mismatch"""
params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
params['ieee80211w'] = '1'
hapd0 = hostapd.add_ap(apdev[0], params)
bssid0 = hapd0.own_addr()
params['ieee80211w'] = '0'
hapd1 = hostapd.add_ap(apdev[1], params)
bssid1 = hapd1.own_addr()
dev[0].flush_scan_cache()
dev[0].scan_for_bss(bssid0, freq=2412)
dev[0].scan_for_bss(bssid1, freq=2412)
dev[0].connect("test-wpa2-psk", psk="12345678", ieee80211w='2')
hapd0.wait_sta()
bssid = dev[0].get_status_field("bssid")
if bssid != bssid0:
raise Exception("Unexpected BSSID reported after initial connection: " + bssid)
if "OK" not in dev[0].request("ROAM " + apdev[1]['bssid']):
raise Exception("ROAM failed")
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=0.5)
if ev is not None:
raise Exception("Unexpected connection reported")
bssid = dev[0].get_status_field("bssid")
if bssid != bssid0:
raise Exception("Unexpected BSSID reported after failed roam attempt: " + bssid)
hwsim_utils.test_connectivity(dev[0], hapd0)
def get_bssid_ignore_list(dev):
return dev.request("BSSID_IGNORE").splitlines()
def test_ap_reconnect_auth_timeout(dev, apdev, params):
"""Reconnect to 2nd AP and authentication times out"""
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5",
drv_params="force_connect_cmd=1,force_bss_selection=1")
wpas.flush_scan_cache()
params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
hapd0 = hostapd.add_ap(apdev[0], params)
bssid0 = hapd0.own_addr()
wpas.scan_for_bss(bssid0, freq=2412)
id = wpas.connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
hapd0.wait_sta()
hwsim_utils.test_connectivity(wpas, hapd0)
hapd1 = hostapd.add_ap(apdev[1], params)
bssid1 = hapd1.own_addr()
wpas.request("BSSID_IGNORE " + bssid0)
wpas.scan_for_bss(bssid1, freq=2412)
wpas.request("DISCONNECT")
if "OK" not in wpas.request("SET ignore_auth_resp 1"):
raise Exception("SET ignore_auth_resp failed")
if "OK" not in wpas.request("ENABLE_NETWORK " + str(id)):
raise Exception("ENABLE_NETWORK failed")
if "OK" not in wpas.request("SELECT_NETWORK " + str(id)):
raise Exception("SELECT_NETWORK failed")
logger.info("Wait ~10s for auth timeout...")
time.sleep(10)
ev = wpas.wait_event(["CTRL-EVENT-SCAN-STARTED"], 12)
if not ev:
raise Exception("CTRL-EVENT-SCAN-STARTED not seen")
b = get_bssid_ignore_list(wpas)
if '00:00:00:00:00:00' in b:
raise Exception("Unexpected ignore list contents: " + str(b))
if bssid1 not in b:
raise Exception("Unexpected ignore list contents: " + str(b))
def test_ap_roam_with_reassoc_auth_timeout(dev, apdev, params):
"""Roam using reassoc between two APs and authentication times out"""
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5",
drv_params="force_connect_cmd=1,force_bss_selection=1")
params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
hapd0 = hostapd.add_ap(apdev[0], params)
bssid0 = hapd0.own_addr()
id = wpas.connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
hapd0.wait_sta()
hwsim_utils.test_connectivity(wpas, hapd0)
hapd1 = hostapd.add_ap(apdev[1], params)
bssid1 = hapd1.own_addr()
wpas.scan_for_bss(bssid1, freq=2412)
if "OK" not in wpas.request("SET_NETWORK " + str(id) + " bssid " + bssid1):
raise Exception("SET_NETWORK failed")
if "OK" not in wpas.request("SET ignore_auth_resp 1"):
raise Exception("SET ignore_auth_resp failed")
if "OK" not in wpas.request("REASSOCIATE"):
raise Exception("REASSOCIATE failed")
logger.info("Wait ~10s for auth timeout...")
time.sleep(10)
ev = wpas.wait_event(["CTRL-EVENT-SCAN-STARTED"], 12)
if not ev:
raise Exception("CTRL-EVENT-SCAN-STARTED not seen")
b = get_bssid_ignore_list(wpas)
if bssid0 in b:
raise Exception("Unexpected ignore list contents: " + str(b))
def test_ap_roam_wpa2_psk_failed(dev, apdev, params):
"""Roam failure with WPA2-PSK AP due to wrong passphrase"""
params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
hapd0 = hostapd.add_ap(apdev[0], params)
id = dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
hapd0.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd0)
params['wpa_passphrase'] = "22345678"
hapd1 = hostapd.add_ap(apdev[1], params)
bssid = hapd1.own_addr()
dev[0].scan_for_bss(bssid, freq=2412)
dev[0].dump_monitor()
if "OK" not in dev[0].request("ROAM " + bssid):
raise Exception("ROAM failed")
ev = dev[0].wait_event(["CTRL-EVENT-SSID-TEMP-DISABLED",
"CTRL-EVENT-CONNECTED"], 5)
if "CTRL-EVENT-CONNECTED" in ev:
raise Exception("Got unexpected CTRL-EVENT-CONNECTED")
if "CTRL-EVENT-SSID-TEMP-DISABLED" not in ev:
raise Exception("CTRL-EVENT-SSID-TEMP-DISABLED not seen")
if "OK" not in dev[0].request("SELECT_NETWORK id=" + str(id)):
raise Exception("SELECT_NETWORK failed")
ev = dev[0].wait_event(["CTRL-EVENT-SSID-REENABLED"], 3)
if not ev:
raise Exception("CTRL-EVENT-SSID-REENABLED not seen")
dev[0].wait_connected(timeout=5)
hapd0.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd0)
@remote_compatible
def test_ap_reassociation_to_same_bss(dev, apdev):
"""Reassociate to the same BSS"""
hapd = hostapd.add_ap(apdev[0], {"ssid": "test-open"})
dev[0].connect("test-open", key_mgmt="NONE")
hapd.wait_sta()
dev[0].request("REASSOCIATE")
dev[0].wait_connected(timeout=10, error="Reassociation timed out")
hapd.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd)
dev[0].request("REATTACH")
dev[0].wait_connected(timeout=10, error="Reattach timed out")
hapd.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd)
# Wait for previous scan results to expire to trigger new scan
time.sleep(5)
dev[0].request("REATTACH")
dev[0].wait_connected(timeout=10, error="Reattach timed out")
hapd.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd)
@remote_compatible
def test_ap_roam_set_bssid(dev, apdev):
"""Roam control"""
hostapd.add_ap(apdev[0], {"ssid": "test-open"})
hostapd.add_ap(apdev[1], {"ssid": "test-open"})
id = dev[0].connect("test-open", key_mgmt="NONE", bssid=apdev[1]['bssid'],
scan_freq="2412")
if dev[0].get_status_field('bssid') != apdev[1]['bssid']:
raise Exception("Unexpected BSS")
# for now, these are just verifying that the code path to indicate
# within-ESS roaming changes can be executed; the actual results of those
# operations are not currently verified (that would require a test driver
# that does BSS selection)
dev[0].set_network(id, "bssid", "")
dev[0].set_network(id, "bssid", apdev[0]['bssid'])
dev[0].set_network(id, "bssid", apdev[1]['bssid'])
@remote_compatible
def test_ap_roam_wpa2_psk_race(dev, apdev):
"""Roam between two WPA2-PSK APs and try to hit a disconnection race"""
params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
hapd0 = hostapd.add_ap(apdev[0], params)
dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
hapd0.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd0)
params['channel'] = '2'
hapd1 = hostapd.add_ap(apdev[1], params)
dev[0].scan_for_bss(apdev[1]['bssid'], freq=2417)
dev[0].roam(apdev[1]['bssid'])
hapd1.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd1)
dev[0].roam(apdev[0]['bssid'])
hapd0.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd0)
# Wait at least two seconds to trigger the previous issue with the
# disconnection callback.
for i in range(3):
time.sleep(0.8)
hwsim_utils.test_connectivity(dev[0], hapd0)
def test_ap_roam_signal_level_override(dev, apdev):
"""Roam between two APs based on driver signal level override"""
hapd0 = hostapd.add_ap(apdev[0], {"ssid": "test-open"})
bssid0 = apdev[0]['bssid']
hapd1 = hostapd.add_ap(apdev[1], {"ssid": "test-open"})
bssid1 = apdev[1]['bssid']
dev[0].scan_for_bss(bssid0, freq=2412)
dev[0].scan_for_bss(bssid1, freq=2412)
dev[0].connect("test-open", key_mgmt="NONE")
bssid = dev[0].get_status_field('bssid')
if bssid == bssid0:
dst = bssid1
src = bssid0
else:
dst = bssid0
src = bssid1
dev[0].scan(freq=2412)
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], 0.5)
if ev is not None:
raise Exception("Unexpected roam")
orig_res = dev[0].request("SIGNAL_POLL")
dev[0].set("driver_signal_override", src + " -1 -2 -3 -4 -5")
res = dev[0].request("SIGNAL_POLL").splitlines()
if "RSSI=-1" not in res or \
"AVG_RSSI=-2" not in res or \
"AVG_BEACON_RSSI=-3" not in res or \
"NOISE=-4" not in res:
raise Exception("SIGNAL_POLL override did not work: " + str(res))
dev[0].set("driver_signal_override", src)
new_res = dev[0].request("SIGNAL_POLL")
if orig_res != new_res:
raise Exception("SIGNAL_POLL restore did not work: " + new_res)
tests = [("-30 -30 -30 -95 -30", "-30 -30 -30 -95 -30"),
("-30 -30 -30 -95 -30", "-20 -20 -20 -95 -20"),
("-90 -90 -90 -95 -90", "-89 -89 -89 -95 -89"),
("-90 -90 -90 -95 -95", "-89 -89 -89 -95 -89")]
for src_override, dst_override in tests:
dev[0].set("driver_signal_override", src + " " + src_override)
dev[0].set("driver_signal_override", dst + " " + dst_override)
dev[0].scan(freq=2412)
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], 0.1)
if ev is not None:
raise Exception("Unexpected roam")
dev[0].dump_monitor()
dev[0].set("driver_signal_override", src + " -90 -90 -90 -95 -90")
dev[0].set("driver_signal_override", dst + " -80 -80 -80 -95 -80")
dev[0].scan(freq=2412)
dev[0].wait_connected()
if dst != dev[0].get_status_field('bssid'):
raise Exception("Unexpected AP after roam")
dev[0].dump_monitor()
def test_ap_roam_during_scan(dev, apdev):
"""Roam command during a scan operation"""
hapd0 = hostapd.add_ap(apdev[0], {"ssid": "test-open"})
dev[0].flush_scan_cache()
dev[0].scan_for_bss(hapd0.own_addr(), freq=2412)
dev[0].connect("test-open", key_mgmt="NONE")
hapd1 = hostapd.add_ap(apdev[1], {"ssid": "test-open"})
dev[0].scan_for_bss(hapd1.own_addr(), freq=2412)
if "OK" not in dev[0].request("SCAN"):
raise Exception("Failed to start scan")
if "OK" not in dev[0].request("ROAM " + hapd1.own_addr()):
raise Exception("Failed to issue ROAM")
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=10)
if ev is None:
raise Exception("Connection not reported after ROAM")
if hapd1.own_addr() not in ev:
raise Exception("Connected to unexpected AP")
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