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.
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"""
hostapd.add_ap(apdev[0]['ifname'], { "ssid": "test-open" })
dev[0].connect("test-open", key_mgmt="NONE")
hwsim_utils.test_connectivity(dev[0].ifname, apdev[0]['ifname'])
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].ifname, apdev[1]['ifname'])
dev[0].roam(apdev[0]['bssid'])
hwsim_utils.test_connectivity(dev[0].ifname, apdev[0]['ifname'])
def test_ap_roam_wpa2_psk(dev, apdev):
"""Roam between two WPA2-PSK APs"""
params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("test-wpa2-psk", psk="12345678")
hwsim_utils.test_connectivity(dev[0].ifname, apdev[0]['ifname'])
hostapd.add_ap(apdev[1]['ifname'], params)
dev[0].scan(type="ONLY")
dev[0].roam(apdev[1]['bssid'])
hwsim_utils.test_connectivity(dev[0].ifname, apdev[1]['ifname'])
dev[0].roam(apdev[0]['bssid'])
hwsim_utils.test_connectivity(dev[0].ifname, apdev[0]['ifname'])
def test_ap_reassociation_to_same_bss(dev, apdev):
"""Reassociate to the same BSS"""
hostapd.add_ap(apdev[0]['ifname'], { "ssid": "test-open" })
dev[0].connect("test-open", key_mgmt="NONE")
dev[0].request("REASSOCIATE")
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=10)
if ev is None:
raise Exception("Reassociation with the AP timed out")
hwsim_utils.test_connectivity(dev[0].ifname, apdev[0]['ifname'])
dev[0].request("REATTACH")
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=10)
if ev is None:
raise Exception("Reassociation (reattach) with the AP timed out")
hwsim_utils.test_connectivity(dev[0].ifname, apdev[0]['ifname'])
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'])