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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"""
- 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)
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