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348bc4e0eb
fragattacks/tests/hwsim/test_ieee8021x.py
Jouni Malinen 348bc4e0eb tests: IEEE 802.1X connection and EAPOL-Key protocol tests 
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-07-07 16:25:06 +03:00

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Python
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# IEEE 802.1X tests
# Copyright (c) 2013-2015, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import binascii
import hmac
import logging
import time
import hostapd
import hwsim_utils
logger = logging.getLogger()
def test_ieee8021x_wep104(dev, apdev):
"""IEEE 802.1X connection using dynamic WEP104"""
params = hostapd.radius_params()
params["ssid"] = "ieee8021x-wep"
params["ieee8021x"] = "1"
params["wep_key_len_broadcast"] = "13"
params["wep_key_len_unicast"] = "13"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("ieee8021x-wep", key_mgmt="IEEE8021X", eap="PSK",
identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
def test_ieee8021x_wep40(dev, apdev):
"""IEEE 802.1X connection using dynamic WEP40"""
params = hostapd.radius_params()
params["ssid"] = "ieee8021x-wep"
params["ieee8021x"] = "1"
params["wep_key_len_broadcast"] = "5"
params["wep_key_len_unicast"] = "5"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("ieee8021x-wep", key_mgmt="IEEE8021X", eap="PSK",
identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
def test_ieee8021x_open(dev, apdev):
"""IEEE 802.1X connection using open network"""
params = hostapd.radius_params()
params["ssid"] = "ieee8021x-open"
params["ieee8021x"] = "1"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
id = dev[0].connect("ieee8021x-open", key_mgmt="IEEE8021X", eapol_flags="0",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
logger.info("Test EAPOL-Logoff")
dev[0].request("LOGOFF")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"])
if ev is None:
raise Exception("Did not get disconnected")
if "reason=23" not in ev:
raise Exception("Unexpected disconnection reason")
dev[0].request("LOGON")
dev[0].connect_network(id)
hwsim_utils.test_connectivity(dev[0], hapd)
def test_ieee8021x_static_wep40(dev, apdev):
"""IEEE 802.1X connection using static WEP40"""
params = hostapd.radius_params()
params["ssid"] = "ieee8021x-wep"
params["ieee8021x"] = "1"
params["wep_key0"] = '"hello"'
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("ieee8021x-wep", key_mgmt="IEEE8021X", eap="PSK",
identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
wep_key0='"hello"', eapol_flags="0",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
def test_ieee8021x_proto(dev, apdev):
"""IEEE 802.1X and EAPOL supplicant protocol testing"""
params = hostapd.radius_params()
params["ssid"] = "ieee8021x-open"
params["ieee8021x"] = "1"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
dev[1].request("SET ext_eapol_frame_io 1")
dev[1].connect("ieee8021x-open", key_mgmt="IEEE8021X", eapol_flags="0",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412", wait_connect=False)
id = dev[0].connect("ieee8021x-open", key_mgmt="IEEE8021X", eapol_flags="0",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412")
ev = dev[1].wait_event(["CTRL-EVENT-EAP-STARTED"], timeout=5)
start = dev[0].get_mib()
tests = [ "11",
"11223344",
"020000050a93000501",
"020300050a93000501",
"0203002c0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"0203002c0100000000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"0203002c0100050000000000000000000000000000000000000000000000000000000000000000000000000000000000",
"02aa00050a93000501" ]
for frame in tests:
res = dev[0].request("EAPOL_RX " + bssid + " " + frame)
if "OK" not in res:
raise Exception("EAPOL_RX to wpa_supplicant failed")
dev[1].request("EAPOL_RX " + bssid + " " + frame)
stop = dev[0].get_mib()
logger.info("MIB before test frames: " + str(start))
logger.info("MIB after test frames: " + str(stop))
vals = [ 'dot1xSuppInvalidEapolFramesRx',
'dot1xSuppEapLengthErrorFramesRx' ]
for val in vals:
if int(stop[val]) <= int(start[val]):
raise Exception(val + " did not increase")
def test_ieee8021x_eapol_start(dev, apdev):
"""IEEE 802.1X and EAPOL-Start retransmissions"""
params = hostapd.radius_params()
params["ssid"] = "ieee8021x-open"
params["ieee8021x"] = "1"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
hapd.set("ext_eapol_frame_io", "1")
try:
dev[0].request("SET EAPOL::startPeriod 1")
dev[0].request("SET EAPOL::maxStart 1")
dev[0].connect("ieee8021x-open", key_mgmt="IEEE8021X", eapol_flags="0",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412", wait_connect=False)
held = False
for i in range(30):
pae = dev[0].get_status_field('Supplicant PAE state')
if pae == "HELD":
held = True
break
time.sleep(0.25)
if not held:
raise Exception("PAE state HELD not reached")
dev[0].wait_disconnected()
finally:
dev[0].request("SET EAPOL::startPeriod 30")
dev[0].request("SET EAPOL::maxStart 3")
def send_eapol_key(dev, bssid, signkey, frame_start, frame_end):
zero_sign = "00000000000000000000000000000000"
frame = frame_start + zero_sign + frame_end
hmac_obj = hmac.new(binascii.unhexlify(signkey))
hmac_obj.update(binascii.unhexlify(frame))
sign = hmac_obj.digest()
frame = frame_start + binascii.hexlify(sign) + frame_end
dev.request("EAPOL_RX " + bssid + " " + frame)
def test_ieee8021x_eapol_key(dev, apdev):
"""IEEE 802.1X connection and EAPOL-Key protocol tests"""
params = hostapd.radius_params()
params["ssid"] = "ieee8021x-wep"
params["ieee8021x"] = "1"
params["wep_key_len_broadcast"] = "5"
params["wep_key_len_unicast"] = "5"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
bssid = apdev[0]['bssid']
dev[0].connect("ieee8021x-wep", key_mgmt="IEEE8021X", eap="VENDOR-TEST",
identity="vendor-test", scan_freq="2412")
# Hardcoded MSK from VENDOR-TEST
encrkey = "1111111111111111111111111111111111111111111111111111111111111111"
signkey = "2222222222222222222222222222222222222222222222222222222222222222"
# EAPOL-Key replay counter does not increase
send_eapol_key(dev[0], bssid, signkey,
"02030031" + "010005" + "0000000000000000" + "056c22d109f29d4d9fb9b9ccbad33283" + "02",
"1c636a30a4")
# EAPOL-Key too large Key Length field value
send_eapol_key(dev[0], bssid, signkey,
"02030031" + "010021" + "ffffffffffffffff" + "056c22d109f29d4d9fb9b9ccbad33283" + "02",
"1c636a30a4")
# EAPOL-Key too much key data
send_eapol_key(dev[0], bssid, signkey,
"0203004d" + "010005" + "ffffffffffffffff" + "056c22d109f29d4d9fb9b9ccbad33283" + "02",
33*"ff")
# EAPOL-Key too little key data
send_eapol_key(dev[0], bssid, signkey,
"02030030" + "010005" + "ffffffffffffffff" + "056c22d109f29d4d9fb9b9ccbad33283" + "02",
"1c636a30")
# EAPOL-Key with no key data and too long WEP key length
send_eapol_key(dev[0], bssid, signkey,
"0203002c" + "010020" + "ffffffffffffffff" + "056c22d109f29d4d9fb9b9ccbad33283" + "02",
"")
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