hostap/tests/hwsim/test_wext.py
Jouni Malinen ee27f6737b tests: Increase WEXT coverage
Signed-off-by: Jouni Malinen <j@w1.fi>
2014-11-30 01:05:44 +02:00

278 lines
10 KiB
Python

# Deprecated WEXT driver interface in wpa_supplicant
# Copyright (c) 2013-2014, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import logging
logger = logging.getLogger()
import os
import subprocess
import hostapd
import hwsim_utils
from wpasupplicant import WpaSupplicant
from test_rfkill import get_rfkill_id
def get_wext_interface():
if not os.path.exists("/proc/net/wireless"):
logger.info("WEXT support not included in the kernel")
return
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
try:
wpas.interface_add("wlan5", driver="wext")
except Exception, e:
logger.info("WEXT driver support not included in wpa_supplicant")
return
return wpas
def test_wext_open(dev, apdev):
"""WEXT driver interface with open network"""
wpas = get_wext_interface()
if not wpas:
return "skip"
params = { "ssid": "wext-open" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
wpas.connect("wext-open", key_mgmt="NONE")
hwsim_utils.test_connectivity(wpas, hapd)
def test_wext_wpa2_psk(dev, apdev):
"""WEXT driver interface with WPA2-PSK"""
wpas = get_wext_interface()
if not wpas:
return "skip"
params = hostapd.wpa2_params(ssid="wext-wpa2-psk", passphrase="12345678")
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
wpas.connect("wext-wpa2-psk", psk="12345678")
hwsim_utils.test_connectivity(wpas, hapd)
if "RSSI=" not in wpas.request("SIGNAL_POLL"):
raise Exception("Missing RSSI from SIGNAL_POLL")
wpas.dump_monitor()
hapd.request("DEAUTHENTICATE " + wpas.p2p_interface_addr())
ev = wpas.wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=15)
if ev is None:
raise Exception("Timeout on disconnection event")
def test_wext_wpa_psk(dev, apdev):
"""WEXT driver interface with WPA-PSK"""
wpas = get_wext_interface()
if not wpas:
return "skip"
params = hostapd.wpa_params(ssid="wext-wpa-psk", passphrase="12345678")
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
testfile = "/sys/kernel/debug/ieee80211/%s/netdev:%s/tkip_mic_test" % (hapd.get_driver_status_field("phyname"), apdev[0]['ifname'])
if not os.path.exists(testfile):
return "skip"
wpas.connect("wext-wpa-psk", psk="12345678")
hwsim_utils.test_connectivity(wpas, hapd)
with open(testfile, "w") as f:
f.write(wpas.p2p_interface_addr())
ev = wpas.wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection on first Michael MIC failure")
with open(testfile, "w") as f:
f.write("ff:ff:ff:ff:ff:ff")
ev = wpas.wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=10)
if ev is None:
raise Exception("No disconnection after two Michael MIC failures")
if "reason=14 locally_generated=1" not in ev:
raise Exception("Unexpected disconnection reason: " + ev)
def test_wext_pmksa_cache(dev, apdev):
"""PMKSA caching with WEXT"""
wpas = get_wext_interface()
if not wpas:
return "skip"
params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache")
hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
wpas.connect("test-pmksa-cache", proto="RSN", key_mgmt="WPA-EAP",
eap="GPSK", identity="gpsk user",
password="abcdefghijklmnop0123456789abcdef",
scan_freq="2412")
pmksa = wpas.get_pmksa(bssid)
if pmksa is None:
raise Exception("No PMKSA cache entry created")
if pmksa['opportunistic'] != '0':
raise Exception("Unexpected opportunistic PMKSA cache entry")
hostapd.add_ap(apdev[1]['ifname'], params)
bssid2 = apdev[1]['bssid']
wpas.dump_monitor()
logger.info("Roam to AP2")
# It can take some time for the second AP to become ready to reply to Probe
# Request frames especially under heavy CPU load, so allow couple of rounds
# of scanning to avoid reporting errors incorrectly just because of scans
# not having seen the target AP.
for i in range(3):
wpas.scan()
if wpas.get_bss(bssid2) is not None:
break
logger.info("Scan again to find target AP")
wpas.request("ROAM " + bssid2)
ev = wpas.wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=10)
if ev is None:
raise Exception("EAP success timed out")
ev = wpas.wait_event(["CTRL-EVENT-CONNECTED"], timeout=10)
if ev is None:
raise Exception("Roaming with the AP timed out")
pmksa2 = wpas.get_pmksa(bssid2)
if pmksa2 is None:
raise Exception("No PMKSA cache entry found")
if pmksa2['opportunistic'] != '0':
raise Exception("Unexpected opportunistic PMKSA cache entry")
wpas.dump_monitor()
logger.info("Roam back to AP1")
wpas.scan()
wpas.request("ROAM " + bssid)
ev = wpas.wait_event(["CTRL-EVENT-EAP-STARTED",
"CTRL-EVENT-CONNECTED"], timeout=15)
if ev is None:
raise Exception("Roaming with the AP timed out")
if "CTRL-EVENT-EAP-STARTED" in ev:
raise Exception("Unexpected EAP exchange")
pmksa1b = wpas.get_pmksa(bssid)
if pmksa1b is None:
raise Exception("No PMKSA cache entry found")
if pmksa['pmkid'] != pmksa1b['pmkid']:
raise Exception("Unexpected PMKID change for AP1")
wpas.dump_monitor()
if "FAIL" in wpas.request("PMKSA_FLUSH"):
raise Exception("PMKSA_FLUSH failed")
if wpas.get_pmksa(bssid) is not None or wpas.get_pmksa(bssid2) is not None:
raise Exception("PMKSA_FLUSH did not remove PMKSA entries")
ev = wpas.wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=5)
if ev is None:
raise Exception("Disconnection event timed out")
ev = wpas.wait_event(["CTRL-EVENT-CONNECTED"], timeout=15)
if ev is None:
raise Exception("Reconnection timed out")
def test_wext_wep_open_auth(dev, apdev):
"""WEP Open System authentication"""
wpas = get_wext_interface()
if not wpas:
return "skip"
hapd = hostapd.add_ap(apdev[0]['ifname'],
{ "ssid": "wep-open",
"wep_key0": '"hello"' })
wpas.connect("wep-open", key_mgmt="NONE", wep_key0='"hello"',
scan_freq="2412")
hwsim_utils.test_connectivity(wpas, hapd)
if "[WEP]" not in wpas.request("SCAN_RESULTS"):
raise Exception("WEP flag not indicated in scan results")
def test_wext_wep_shared_key_auth(dev, apdev):
"""WEP Shared Key authentication"""
wpas = get_wext_interface()
if not wpas:
return "skip"
hapd = hostapd.add_ap(apdev[0]['ifname'],
{ "ssid": "wep-shared-key",
"wep_key0": '"hello12345678"',
"auth_algs": "2" })
wpas.connect("wep-shared-key", key_mgmt="NONE", auth_alg="SHARED",
wep_key0='"hello12345678"', scan_freq="2412")
hwsim_utils.test_connectivity(wpas, hapd)
wpas.request("REMOVE_NETWORK all")
ev = wpas.wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=5)
if ev is None:
raise Exception("Disconnection event timed out")
wpas.connect("wep-shared-key", key_mgmt="NONE", auth_alg="OPEN SHARED",
wep_key0='"hello12345678"', scan_freq="2412")
def test_wext_pmf(dev, apdev):
"""WEXT driver interface with WPA2-PSK and PMF"""
wpas = get_wext_interface()
if not wpas:
return "skip"
params = hostapd.wpa2_params(ssid="wext-wpa2-psk", passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK-SHA256";
params["ieee80211w"] = "2";
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
wpas.connect("wext-wpa2-psk", psk="12345678", ieee80211w="1",
key_mgmt="WPA-PSK WPA-PSK-SHA256", proto="WPA2",
scan_freq="2412")
hwsim_utils.test_connectivity(wpas, hapd)
addr = wpas.p2p_interface_addr()
hapd.request("DEAUTHENTICATE " + addr)
ev = wpas.wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=5)
if ev is None:
raise Exception("No disconnection")
def test_wext_scan_hidden(dev, apdev):
"""WEXT with hidden SSID"""
wpas = get_wext_interface()
if not wpas:
return "skip"
hostapd.add_ap(apdev[0]['ifname'], { "ssid": "test-scan",
"ignore_broadcast_ssid": "1" })
hostapd.add_ap(apdev[1]['ifname'], { "ssid": "test-scan2",
"ignore_broadcast_ssid": "1" })
id1 = wpas.connect("test-scan", key_mgmt="NONE", scan_ssid="1",
only_add_network=True)
wpas.request("SCAN scan_id=%d" % id1)
ev = wpas.wait_event(["CTRL-EVENT-SCAN-RESULTS"], timeout=15)
if ev is None:
raise Exception("Scan did not complete")
if "test-scan" not in wpas.request("SCAN_RESULTS"):
raise Exception("Did not find hidden SSID in scan")
id = wpas.connect("test-scan2", key_mgmt="NONE", scan_ssid="1",
only_add_network=True)
wpas.connect_network(id, timeout=30)
def test_wext_rfkill(dev, apdev):
"""WEXT and rfkill block/unblock"""
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5")
id = get_rfkill_id(wpas)
if id is None:
return "skip"
wpas.interface_remove("wlan5")
wpas = get_wext_interface()
if not wpas:
return "skip"
hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": "open" })
wpas.connect("open", key_mgmt="NONE", scan_freq="2412")
try:
logger.info("rfkill block")
subprocess.call(['rfkill', 'block', id])
ev = wpas.wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=10)
if ev is None:
raise Exception("Missing disconnection event on rfkill block")
logger.info("rfkill unblock")
subprocess.call(['rfkill', 'unblock', id])
ev = wpas.wait_event(["CTRL-EVENT-CONNECTED"], timeout=20)
if ev is None:
raise Exception("Missing connection event on rfkill unblock")
hwsim_utils.test_connectivity(wpas, hapd)
finally:
subprocess.call(['rfkill', 'unblock', id])