hostap/tests/hwsim/test_ap_roam.py
Jouni Malinen 5a38a7fe43 tests: Roam between two WPA2-PSK APs and try to hit a disconnection race
This is a regression test case for hostapd bug where the
disconnection/deauthentication TX status callback timeout could be
forgotten after new association if no ACK frame was received and the STA
managed to reconnect within two seconds.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
2016-01-15 19:34:58 +02:00

87 lines
3.5 KiB
Python

# 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.
import time
import subprocess
import logging
logger = logging.getLogger()
import hwsim_utils
import hostapd
def test_ap_roam_open(dev, apdev):
"""Roam between two open APs"""
hapd0 = hostapd.add_ap(apdev[0]['ifname'], { "ssid": "test-open" })
dev[0].connect("test-open", key_mgmt="NONE")
hwsim_utils.test_connectivity(dev[0], hapd0)
hapd1 = hostapd.add_ap(apdev[1]['ifname'], { "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)
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]['ifname'], params)
dev[0].connect("test-wpa2-psk", psk="12345678")
hwsim_utils.test_connectivity(dev[0], hapd0)
hapd1 = hostapd.add_ap(apdev[1]['ifname'], 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_reassociation_to_same_bss(dev, apdev):
"""Reassociate to the same BSS"""
hapd = hostapd.add_ap(apdev[0]['ifname'], { "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)
def test_ap_roam_set_bssid(dev, apdev):
"""Roam control"""
hostapd.add_ap(apdev[0]['ifname'], { "ssid": "test-open" })
hostapd.add_ap(apdev[1]['ifname'], { "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'])
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]['ifname'], 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]['ifname'], 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)