hostap/tests/hwsim/test_ap_roam.py

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# Roaming tests
# Copyright (c) 2013, 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
@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")
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)
@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)
@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")
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'])
hwsim_utils.test_connectivity(dev[0], hapd1)
dev[0].roam(apdev[0]['bssid'])
hwsim_utils.test_connectivity(dev[0], hapd0)
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")
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)
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")
dev[0].request("REASSOCIATE")
dev[0].wait_connected(timeout=10, error="Reassociation timed out")
hwsim_utils.test_connectivity(dev[0], hapd)
dev[0].request("REATTACH")
dev[0].wait_connected(timeout=10, error="Reattach timed out")
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")
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")
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'])
hwsim_utils.test_connectivity(dev[0], hapd1)
dev[0].roam(apdev[0]['bssid'])
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)