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fragattacks/tests/hwsim/test_owe.py
Jouni Malinen 29ff74aef0 tests: Additional coverage for OWE PMKSA caching 
Signed-off-by: Jouni Malinen <j@w1.fi>
2020-08-22 14:03:30 +03:00

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# Test cases for Opportunistic Wireless Encryption (OWE)
# Copyright (c) 2017, 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 logging
logger = logging.getLogger()
import time
import os
import struct
import hostapd
from wpasupplicant import WpaSupplicant
import hwsim_utils
from tshark import run_tshark
from utils import HwsimSkip, fail_test, alloc_fail, wait_fail_trigger
from test_ap_acs import wait_acs
def test_owe(dev, apdev):
"""Opportunistic Wireless Encryption"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe",
"wpa": "2",
"ieee80211w": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
bss = dev[0].get_bss(bssid)
if "[WPA2-OWE-CCMP]" not in bss['flags']:
raise Exception("OWE AKM not recognized: " + bss['flags'])
id = dev[0].connect("owe", key_mgmt="OWE", ieee80211w="2", scan_freq="2412")
hapd.wait_sta()
pmk_h = hapd.request("GET_PMK " + dev[0].own_addr())
pmk_w = dev[0].get_pmk(id)
if pmk_h != pmk_w:
raise Exception("Fetched PMK does not match: hostapd %s, wpa_supplicant %s" % (pmk_h, pmk_w))
hwsim_utils.test_connectivity(dev[0], hapd)
val = dev[0].get_status_field("key_mgmt")
if val != "OWE":
raise Exception("Unexpected key_mgmt: " + val)
def test_owe_groups(dev, apdev):
"""Opportunistic Wireless Encryption - DH groups"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
for group in [19, 20, 21]:
dev[0].connect("owe", key_mgmt="OWE", owe_group=str(group))
hwsim_utils.test_connectivity(dev[0], hapd)
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected()
dev[0].dump_monitor()
def test_owe_pmksa_caching(dev, apdev):
"""Opportunistic Wireless Encryption and PMKSA caching"""
try:
run_owe_pmksa_caching(dev, apdev)
finally:
dev[0].set("reassoc_same_bss_optim", "0")
def test_owe_pmksa_caching_connect_cmd(dev, apdev):
"""Opportunistic Wireless Encryption and PMKSA caching using cfg80211 connect command"""
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5", drv_params="force_connect_cmd=1")
try:
run_owe_pmksa_caching([wpas], apdev)
finally:
wpas.set("reassoc_same_bss_optim", "0")
def run_owe_pmksa_caching(dev, apdev):
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].set("reassoc_same_bss_optim", "1")
dev[0].scan_for_bss(bssid, freq="2412")
id = dev[0].connect("owe", key_mgmt="OWE")
hapd.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd)
pmksa = dev[0].get_pmksa(bssid)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].dump_monitor()
dev[0].select_network(id, 2412)
dev[0].wait_connected()
hapd.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd)
pmksa2 = dev[0].get_pmksa(bssid)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].dump_monitor()
if "OK" not in hapd.request("PMKSA_FLUSH"):
raise Exception("PMKSA_FLUSH failed")
dev[0].select_network(id, 2412)
dev[0].wait_connected()
hapd.wait_sta()
hwsim_utils.test_connectivity(dev[0], hapd)
pmksa3 = dev[0].get_pmksa(bssid)
if pmksa is None or pmksa2 is None or pmksa3 is None:
raise Exception("PMKSA entry missing")
if pmksa['pmkid'] != pmksa2['pmkid']:
raise Exception("Unexpected PMKID change when using PMKSA caching")
if pmksa['pmkid'] == pmksa3['pmkid']:
raise Exception("PMKID did not change after PMKSA cache flush")
dev[0].request("REASSOCIATE")
dev[0].wait_connected()
pmksa4 = dev[0].get_pmksa(bssid)
if pmksa3['pmkid'] != pmksa4['pmkid']:
raise Exception("Unexpected PMKID change when using PMKSA caching [2]")
def test_owe_and_psk(dev, apdev):
"""Opportunistic Wireless Encryption and WPA2-PSK enabled"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe+psk",
"wpa": "2",
"wpa_key_mgmt": "OWE WPA-PSK",
"rsn_pairwise": "CCMP",
"wpa_passphrase": "12345678"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].connect("owe+psk", psk="12345678")
hwsim_utils.test_connectivity(dev[0], hapd)
dev[1].scan_for_bss(bssid, freq="2412")
dev[1].connect("owe+psk", key_mgmt="OWE")
hwsim_utils.test_connectivity(dev[1], hapd)
def test_owe_transition_mode(dev, apdev):
"""Opportunistic Wireless Encryption transition mode"""
run_owe_transition_mode(dev, apdev)
def test_owe_transition_mode_connect_cmd(dev, apdev):
"""Opportunistic Wireless Encryption transition mode using cfg80211 connect command"""
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5", drv_params="force_connect_cmd=1")
run_owe_transition_mode([wpas], apdev)
def test_owe_transition_mode_mismatch1(dev, apdev):
"""Opportunistic Wireless Encryption transition mode (mismatch 1)"""
run_owe_transition_mode(dev, apdev, adv_bssid0="02:11:22:33:44:55")
def test_owe_transition_mode_mismatch2(dev, apdev):
"""Opportunistic Wireless Encryption transition mode (mismatch 2)"""
run_owe_transition_mode(dev, apdev, adv_bssid1="02:11:22:33:44:66")
def test_owe_transition_mode_mismatch3(dev, apdev):
"""Opportunistic Wireless Encryption transition mode (mismatch 3)"""
run_owe_transition_mode(dev, apdev, adv_bssid0="02:11:22:33:44:55",
adv_bssid1="02:11:22:33:44:66")
def run_owe_transition_mode(dev, apdev, adv_bssid0=None, adv_bssid1=None):
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
dev[0].flush_scan_cache()
adv_bssid = adv_bssid0 if adv_bssid0 else apdev[1]['bssid']
params = {"ssid": "owe-random",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"ieee80211w": "2",
"owe_transition_bssid": adv_bssid,
"owe_transition_ssid": '"owe-test"',
"ignore_broadcast_ssid": "1"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
adv_bssid = adv_bssid1 if adv_bssid1 else apdev[0]['bssid']
params = {"ssid": "owe-test",
"owe_transition_bssid": adv_bssid,
"owe_transition_ssid": '"owe-random"'}
hapd2 = hostapd.add_ap(apdev[1], params)
bssid2 = hapd2.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].scan_for_bss(bssid2, freq="2412")
bss = dev[0].get_bss(bssid)
if "[WPA2-OWE-CCMP]" not in bss['flags']:
raise Exception("OWE AKM not recognized: " + bss['flags'])
if "[OWE-TRANS]" not in bss['flags']:
raise Exception("OWE transition not recognized: " + bss['flags'])
bss = dev[0].get_bss(bssid2)
if "[OWE-TRANS-OPEN]" not in bss['flags']:
raise Exception("OWE transition (open) not recognized: " + bss['flags'])
id = dev[0].connect("owe-test", key_mgmt="OWE", ieee80211w="2",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
val = dev[0].get_status_field("key_mgmt")
if val != "OWE":
raise Exception("Unexpected key_mgmt: " + val)
logger.info("Move to OWE only mode (disable transition mode)")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].dump_monitor()
hapd2.disable()
hapd.disable()
dev[0].flush_scan_cache()
hapd.set("owe_transition_bssid", "00:00:00:00:00:00")
hapd.set("ignore_broadcast_ssid", '0')
hapd.set("ssid", 'owe-test')
hapd.enable()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].select_network(id, 2412)
dev[0].wait_connected()
hwsim_utils.test_connectivity(dev[0], hapd)
def test_owe_transition_mode_ifname(dev, apdev):
"""Opportunistic Wireless Encryption transition mode (ifname)"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
dev[0].flush_scan_cache()
params = {"ssid": "owe-random",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"ieee80211w": "2",
"owe_transition_ifname": apdev[1]['ifname'],
"ignore_broadcast_ssid": "1"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
params = {"ssid": "owe-test",
"owe_transition_ifname": apdev[0]['ifname']}
hapd2 = hostapd.add_ap(apdev[1], params)
bssid2 = hapd2.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].scan_for_bss(bssid2, freq="2412")
id = dev[0].connect("owe-test", key_mgmt="OWE", ieee80211w="2",
scan_freq="2412")
val = dev[0].get_status_field("key_mgmt")
if val != "OWE":
raise Exception("Unexpected key_mgmt: " + val)
def test_owe_transition_mode_ifname_acs(dev, apdev):
"""Opportunistic Wireless Encryption transition mode (ifname, ACS)"""
run_owe_transition_mode_ifname_acs(dev, apdev, wait_first=False)
def test_owe_transition_mode_ifname_acs2(dev, apdev):
"""Opportunistic Wireless Encryption transition mode (ifname, ACS)"""
run_owe_transition_mode_ifname_acs(dev, apdev, wait_first=True)
def run_owe_transition_mode_ifname_acs(dev, apdev, wait_first):
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
dev[0].flush_scan_cache()
params = {"ssid": "owe-random",
"channel": "0",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"ieee80211w": "2",
"owe_transition_ifname": apdev[1]['ifname'],
"ignore_broadcast_ssid": "1"}
hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
bssid = hapd.own_addr()
if wait_first:
wait_acs(hapd)
params = {"ssid": "owe-test",
"channel": "0",
"owe_transition_ifname": apdev[0]['ifname']}
hapd2 = hostapd.add_ap(apdev[1], params, wait_enabled=False)
bssid2 = hapd2.own_addr()
wait_acs(hapd2)
if not wait_first:
state = hapd.get_status_field("state")
if state == "ACS-STARTED":
time.sleep(5)
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("AP1 startup did not succeed")
freq = hapd.get_status_field("freq")
freq2 = hapd2.get_status_field("freq")
dev[0].scan_for_bss(bssid, freq=freq)
dev[0].scan_for_bss(bssid2, freq=freq2)
id = dev[0].connect("owe-test", key_mgmt="OWE", ieee80211w="2",
scan_freq="%s %s" % (freq, freq2))
val = dev[0].get_status_field("key_mgmt")
if val != "OWE":
raise Exception("Unexpected key_mgmt: " + val)
def test_owe_transition_mode_open_only_ap(dev, apdev):
"""Opportunistic Wireless Encryption transition mode connect to open-only AP"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
dev[0].flush_scan_cache()
params = {"ssid": "owe-test-open"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
bss = dev[0].get_bss(bssid)
id = dev[0].connect("owe-test-open", key_mgmt="OWE", ieee80211w="2",
scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd)
val = dev[0].get_status_field("key_mgmt")
if val != "NONE":
raise Exception("Unexpected key_mgmt: " + val)
def test_owe_only_sta(dev, apdev):
"""Opportunistic Wireless Encryption transition mode disabled on STA"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
dev[0].flush_scan_cache()
params = {"ssid": "owe-test-open"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
id = dev[0].connect("owe-test-open", key_mgmt="OWE", ieee80211w="2",
scan_freq="2412", owe_only="1", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED",
"CTRL-EVENT-NETWORK-NOT-FOUND"], timeout=10)
if not ev:
raise Exception("Unknown result for the connection attempt")
if "CTRL-EVENT-CONNECTED" in ev:
raise Exception("Unexpected connection to open network")
dev[0].request("DISCONNECT")
dev[0].dump_monitor()
params = {"ssid": "owe-test-open",
"wpa": "2",
"ieee80211w": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP"}
hapd2 = hostapd.add_ap(apdev[1], params)
dev[0].request("RECONNECT")
dev[0].wait_connected()
def test_owe_transition_mode_open_multiple_scans(dev, apdev):
"""Opportunistic Wireless Encryption transition mode and need for multiple scans"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
dev[0].flush_scan_cache()
params = {"ssid": "owe-test",
"owe_transition_bssid": apdev[0]['bssid'],
"owe_transition_ssid": '"owe-random"'}
hapd2 = hostapd.add_ap(apdev[1], params)
bssid2 = hapd2.own_addr()
dev[0].scan_for_bss(bssid2, freq="2412")
dev[0].dump_monitor()
id = dev[0].connect("owe-test", key_mgmt="OWE", ieee80211w="2",
scan_freq="2412", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-SCAN-RESULTS"], timeout=1)
params = {"ssid": "owe-random",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"ieee80211w": "2",
"owe_transition_bssid": apdev[1]['bssid'],
"owe_transition_ssid": '"owe-test"',
"ignore_broadcast_ssid": "1"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].wait_connected()
val = dev[0].get_status_field("key_mgmt")
if val != "OWE":
raise Exception("Unexpected key_mgmt: " + val)
def test_owe_transition_mode_multi_bss(dev, apdev):
"""Opportunistic Wireless Encryption transition mode (multi BSS)"""
try:
run_owe_transition_mode_multi_bss(dev, apdev)
finally:
dev[0].request("SCAN_INTERVAL 5")
def run_owe_transition_mode_multi_bss(dev, apdev):
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
ifname1 = apdev[0]['ifname']
ifname2 = apdev[0]['ifname'] + '-2'
hapd1 = hostapd.add_bss(apdev[0], ifname1, 'owe-bss-1.conf')
hapd2 = hostapd.add_bss(apdev[0], ifname2, 'owe-bss-2.conf')
hapd2.bssidx = 1
bssid = hapd1.own_addr()
bssid2 = hapd2.own_addr()
# Beaconing with the OWE Transition Mode element can start only once both
# BSSs are enabled, so the very first Beacon frame may go out without this
# element. Wait a bit to avoid getting incomplete scan results.
time.sleep(0.1)
dev[0].request("SCAN_INTERVAL 1")
dev[0].scan_for_bss(bssid2, freq="2412")
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].connect("transition-mode-open", key_mgmt="OWE")
val = dev[0].get_status_field("bssid")
if val != bssid2:
raise Exception("Unexpected bssid: " + val)
val = dev[0].get_status_field("key_mgmt")
if val != "OWE":
raise Exception("Unexpected key_mgmt: " + val)
hwsim_utils.test_connectivity(dev[0], hapd2)
def test_owe_transition_mode_rsne_mismatch(dev, apdev):
"""Opportunistic Wireless Encryption transition mode and RSNE mismatch"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
dev[0].flush_scan_cache()
params = {"ssid": "owe-random",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"ieee80211w": "2",
"rsne_override_eapol": "30140100000fac040100000fac040100000fac020c00",
"owe_transition_bssid": apdev[1]['bssid'],
"owe_transition_ssid": '"owe-test"',
"ignore_broadcast_ssid": "1"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
params = {"ssid": "owe-test",
"owe_transition_bssid": apdev[0]['bssid'],
"owe_transition_ssid": '"owe-random"'}
hapd2 = hostapd.add_ap(apdev[1], params)
bssid2 = hapd2.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].scan_for_bss(bssid2, freq="2412")
id = dev[0].connect("owe-test", key_mgmt="OWE", ieee80211w="2",
scan_freq="2412", wait_connect=False)
ev = dev[0].wait_event(["PMKSA-CACHE-ADDED"], timeout=5)
if ev is None:
raise Exception("OWE PMKSA not created")
ev = dev[0].wait_event(["WPA: IE in 3/4 msg does not match with IE in Beacon/ProbeResp"],
timeout=5)
if ev is None:
raise Exception("RSNE mismatch not reported")
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED",
"CTRL-EVENT-DISCONNECTED"], timeout=5)
dev[0].request("REMOVE_NETWORK all")
if ev is None:
raise Exception("No disconnection seen")
if "CTRL-EVENT-DISCONNECTED" not in ev:
raise Exception("Unexpected connection")
if "reason=17 locally_generated=1" not in ev:
raise Exception("Unexpected disconnection reason: " + ev)
def test_owe_unsupported_group(dev, apdev):
"""Opportunistic Wireless Encryption and unsupported group"""
try:
run_owe_unsupported_group(dev, apdev)
finally:
dev[0].request("VENDOR_ELEM_REMOVE 13 *")
def test_owe_unsupported_group_connect_cmd(dev, apdev):
"""Opportunistic Wireless Encryption and unsupported group using cfg80211 connect command"""
try:
wpas = None
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5", drv_params="force_connect_cmd=1")
run_owe_unsupported_group([wpas], apdev)
finally:
if wpas:
wpas.request("VENDOR_ELEM_REMOVE 13 *")
def run_owe_unsupported_group(dev, apdev):
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
# Override OWE Dh Parameters element with a payload that uses invalid group
# 0 (and actual group 19 data) to make the AP reject this with the specific
# status code 77.
dev[0].request("VENDOR_ELEM_ADD 13 ff23200000783590fb7440e03d5b3b33911f86affdcc6b4411b707846ac4ff08ddc8831ccd")
params = {"ssid": "owe",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].connect("owe", key_mgmt="OWE", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-ASSOC-REJECT"], timeout=10)
dev[0].request("DISCONNECT")
if ev is None:
raise Exception("Association not rejected")
if "status_code=77" not in ev:
raise Exception("Unexpected rejection reason: " + ev)
def test_owe_limited_group_set(dev, apdev):
"""Opportunistic Wireless Encryption and limited group set"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"owe_groups": "20 21"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].connect("owe", key_mgmt="OWE", owe_group="19", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-ASSOC-REJECT"], timeout=10)
dev[0].request("DISCONNECT")
if ev is None:
raise Exception("Association not rejected")
if "status_code=77" not in ev:
raise Exception("Unexpected rejection reason: " + ev)
dev[0].dump_monitor()
for group in [20, 21]:
dev[0].connect("owe", key_mgmt="OWE", owe_group=str(group))
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected()
dev[0].dump_monitor()
def test_owe_limited_group_set_pmf(dev, apdev, params):
"""Opportunistic Wireless Encryption and limited group set (PMF)"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
pcapng = os.path.join(params['logdir'], "hwsim0.pcapng")
params = {"ssid": "owe",
"wpa": "2",
"ieee80211w": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"owe_groups": "21"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].connect("owe", key_mgmt="OWE", owe_group="19", ieee80211w="2",
scan_freq="2412", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-ASSOC-REJECT"], timeout=10)
dev[0].request("DISCONNECT")
if ev is None:
raise Exception("Association not rejected")
if "status_code=77" not in ev:
raise Exception("Unexpected rejection reason: " + ev)
dev[0].dump_monitor()
dev[0].connect("owe", key_mgmt="OWE", owe_group="20", ieee80211w="2",
scan_freq="2412", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-ASSOC-REJECT"], timeout=10)
dev[0].request("DISCONNECT")
if ev is None:
raise Exception("Association not rejected (2)")
if "status_code=77" not in ev:
raise Exception("Unexpected rejection reason (2): " + ev)
dev[0].dump_monitor()
dev[0].connect("owe", key_mgmt="OWE", owe_group="21", ieee80211w="2",
scan_freq="2412")
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected()
dev[0].dump_monitor()
out = run_tshark(pcapng,
"wlan.fc.type_subtype == 1",
display=['wlan_mgt.fixed.status_code'])
status = out.splitlines()
logger.info("Association Response frame status codes: " + str(status))
if len(status) != 3:
raise Exception("Unexpected number of Association Response frames")
if (int(status[0], base=0) != 77 or int(status[1], base=0) != 77 or
int(status[2], base=0) != 0):
raise Exception("Unexpected Association Response frame status code")
def test_owe_group_negotiation(dev, apdev):
"""Opportunistic Wireless Encryption and group negotiation"""
run_owe_group_negotiation(dev[0], apdev)
def test_owe_group_negotiation_connect_cmd(dev, apdev):
"""Opportunistic Wireless Encryption and group negotiation (connect command)"""
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5", drv_params="force_connect_cmd=1")
run_owe_group_negotiation(wpas, apdev)
def run_owe_group_negotiation(dev, apdev):
if "OWE" not in dev.get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"owe_groups": "21"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev.scan_for_bss(bssid, freq="2412")
dev.connect("owe", key_mgmt="OWE")
def test_owe_assoc_reject(dev, apdev):
"""Opportunistic Wireless Encryption association rejection handling"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe",
"require_ht": "1",
"wpa": "2",
"ieee80211w": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"owe_groups": "19"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
# First, reject two associations with HT-required (i.e., not OWE related)
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].connect("owe", key_mgmt="OWE", ieee80211w="2",
disable_ht="1", scan_freq="2412", wait_connect=False)
for i in range(0, 2):
ev = dev[0].wait_event(["CTRL-EVENT-ASSOC-REJECT"], timeout=10)
if ev is None:
raise Exception("Association rejection not reported")
# Then, verify that STA tries OWE with the default group (19) on the next
# attempt instead of having moved to testing another group.
hapd.set("require_ht", "0")
for i in range(0, 2):
ev = dev[0].wait_event(["CTRL-EVENT-ASSOC-REJECT",
"CTRL-EVENT-CONNECTED"], timeout=10)
if ev is None:
raise Exception("Association result not reported")
if "CTRL-EVENT-CONNECTED" in ev:
break
if "status_code=77" in ev:
raise Exception("Unexpected unsupport group rejection")
if "CTRL-EVENT-CONNECTED" not in ev:
raise Exception("Did not connect successfully")
def test_owe_local_errors(dev, apdev):
"""Opportunistic Wireless Encryption - local errors on supplicant"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe",
"wpa": "2",
"ieee80211w": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
tests = [(1, "crypto_ecdh_init;owe_build_assoc_req"),
(1, "crypto_ecdh_get_pubkey;owe_build_assoc_req"),
(1, "wpabuf_alloc;owe_build_assoc_req")]
for count, func in tests:
with alloc_fail(dev[0], count, func):
dev[0].connect("owe", key_mgmt="OWE", owe_group="20",
ieee80211w="2",
scan_freq="2412", wait_connect=False)
wait_fail_trigger(dev[0], "GET_ALLOC_FAIL")
dev[0].request("REMOVE_NETWORK all")
dev[0].dump_monitor()
tests = [(1, "crypto_ecdh_set_peerkey;owe_process_assoc_resp"),
(1, "crypto_ecdh_get_pubkey;owe_process_assoc_resp"),
(1, "wpabuf_alloc;=owe_process_assoc_resp")]
for count, func in tests:
with alloc_fail(dev[0], count, func):
dev[0].connect("owe", key_mgmt="OWE", owe_group="20",
ieee80211w="2",
scan_freq="2412", wait_connect=False)
dev[0].wait_disconnected()
dev[0].request("REMOVE_NETWORK all")
dev[0].dump_monitor()
tests = [(1, "hmac_sha256;owe_process_assoc_resp", 19),
(1, "hmac_sha256_kdf;owe_process_assoc_resp", 19),
(1, "hmac_sha384;owe_process_assoc_resp", 20),
(1, "hmac_sha384_kdf;owe_process_assoc_resp", 20),
(1, "hmac_sha512;owe_process_assoc_resp", 21),
(1, "hmac_sha512_kdf;owe_process_assoc_resp", 21)]
for count, func, group in tests:
with fail_test(dev[0], count, func):
dev[0].connect("owe", key_mgmt="OWE", owe_group=str(group),
ieee80211w="2",
scan_freq="2412", wait_connect=False)
dev[0].wait_disconnected()
dev[0].request("REMOVE_NETWORK all")
dev[0].dump_monitor()
dev[0].connect("owe", key_mgmt="OWE", owe_group="18",
ieee80211w="2",
scan_freq="2412", wait_connect=False)
ev = dev[0].wait_event(["SME: Trying to authenticate"], timeout=5)
if ev is None:
raise Exception("No authentication attempt")
time.sleep(0.5)
dev[0].request("REMOVE_NETWORK all")
dev[0].dump_monitor()
def hapd_auth(hapd):
for i in range(0, 10):
req = hapd.mgmt_rx()
if req is None:
raise Exception("MGMT RX wait timed out")
if req['subtype'] == 11:
break
req = None
if not req:
raise Exception("Authentication frame not received")
resp = {}
resp['fc'] = req['fc']
resp['da'] = req['sa']
resp['sa'] = req['da']
resp['bssid'] = req['bssid']
resp['payload'] = struct.pack('<HHH', 0, 2, 0)
hapd.mgmt_tx(resp)
def hapd_assoc(hapd, extra):
for i in range(0, 10):
req = hapd.mgmt_rx()
if req is None:
raise Exception("MGMT RX wait timed out")
if req['subtype'] == 0:
break
req = None
if not req:
raise Exception("Association Request frame not received")
resp = {}
resp['fc'] = 0x0010
resp['da'] = req['sa']
resp['sa'] = req['da']
resp['bssid'] = req['bssid']
payload = struct.pack('<HHH', 0x0411, 0, 0xc001)
payload += binascii.unhexlify("010882848b960c121824")
resp['payload'] = payload + extra
hapd.mgmt_tx(resp)
def test_owe_invalid_assoc_resp(dev, apdev):
"""Opportunistic Wireless Encryption - invalid Association Response frame"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe",
"wpa": "2",
"ieee80211w": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
hapd.set("ext_mgmt_frame_handling", "1")
# OWE: No Diffie-Hellman Parameter element found in Association Response frame
tests = [b'']
# No room for group --> no DH Params
tests += [binascii.unhexlify('ff0120')]
# OWE: Unexpected Diffie-Hellman group in response: 18
tests += [binascii.unhexlify('ff03201200')]
# OWE: Invalid peer DH public key
tests += [binascii.unhexlify('ff23201300' + 31*'00' + '01')]
# OWE: Invalid peer DH public key
tests += [binascii.unhexlify('ff24201300' + 33*'ee')]
for extra in tests:
dev[0].connect("owe", key_mgmt="OWE", owe_group="19", ieee80211w="2",
scan_freq="2412", wait_connect=False)
hapd_auth(hapd)
hapd_assoc(hapd, extra)
dev[0].wait_disconnected()
dev[0].request("REMOVE_NETWORK all")
dev[0].dump_monitor()
# OWE: Empty public key (this ends up getting padded to a valid point)
dev[0].connect("owe", key_mgmt="OWE", owe_group="19", ieee80211w="2",
scan_freq="2412", wait_connect=False)
hapd_auth(hapd)
hapd_assoc(hapd, binascii.unhexlify('ff03201300'))
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED", "PMKSA-CACHE-ADDED"],
timeout=5)
if ev is None:
raise Exception("No result reported for empty public key")
dev[0].request("REMOVE_NETWORK all")
dev[0].dump_monitor()
def start_owe(dev, apdev, workaround=0):
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
params = {"ssid": "owe",
"wpa": "2",
"ieee80211w": "2",
"wpa_key_mgmt": "OWE",
"owe_ptk_workaround": str(workaround),
"rsn_pairwise": "CCMP"}
hapd = hostapd.add_ap(apdev[0], params)
dev[0].scan_for_bss(hapd.own_addr(), freq="2412")
return hapd
def owe_check_ok(dev, hapd, owe_group, owe_ptk_workaround):
dev.connect("owe", key_mgmt="OWE", ieee80211w="2",
owe_group=owe_group, owe_ptk_workaround=owe_ptk_workaround,
scan_freq="2412")
hapd.wait_sta()
dev.request("REMOVE_NETWORK all")
dev.wait_disconnected()
dev.dump_monitor()
def test_owe_ptk_workaround_ap(dev, apdev):
"""Opportunistic Wireless Encryption - AP using PTK workaround"""
hapd = start_owe(dev, apdev, workaround=1)
for group, workaround in [(19, 0), (20, 0), (21, 0),
(19, 1), (20, 1), (21, 1)]:
owe_check_ok(dev[0], hapd, str(group), str(workaround))
def test_owe_ptk_hash(dev, apdev):
"""Opportunistic Wireless Encryption - PTK derivation hash alg"""
hapd = start_owe(dev, apdev)
for group, workaround in [(19, 0), (20, 0), (21, 0), (19, 1)]:
owe_check_ok(dev[0], hapd, str(group), str(workaround))
for group in [20, 21]:
dev[0].connect("owe", key_mgmt="OWE", ieee80211w="2",
owe_group=str(group), owe_ptk_workaround="1",
scan_freq="2412", wait_connect=False)
ev = dev[0].wait_event(["PMKSA-CACHE-ADDED"], timeout=10)
if ev is None:
raise Exception("Could not complete OWE association")
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED",
"CTRL-EVENT-DISCONNECTED"], timeout=5)
if ev is None:
raise Exception("Unknown connection result")
if "CTRL-EVENT-CONNECTED" in ev:
raise Exception("Unexpected connection")
dev[0].request("REMOVE_NETWORK all")
ev = dev[0].wait_event(["PMKSA-CACHE-REMOVED"], timeout=5)
if ev is None:
raise Exception("No PMKSA cache removal event seen")
dev[0].dump_monitor()
def test_owe_transition_mode_disable(dev, apdev):
"""Opportunistic Wireless Encryption transition mode disable"""
if "OWE" not in dev[0].get_capability("key_mgmt"):
raise HwsimSkip("OWE not supported")
dev[0].flush_scan_cache()
params = {"ssid": "owe-random",
"wpa": "2",
"wpa_key_mgmt": "OWE",
"rsn_pairwise": "CCMP",
"ieee80211w": "2",
"transition_disable": '0x08',
"owe_transition_bssid": apdev[1]['bssid'],
"owe_transition_ssid": '"owe-test"',
"ignore_broadcast_ssid": "1"}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
params = {"ssid": "owe-test",
"owe_transition_bssid": apdev[0]['bssid'],
"owe_transition_ssid": '"owe-random"'}
hapd2 = hostapd.add_ap(apdev[1], params)
bssid2 = hapd2.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].scan_for_bss(bssid2, freq="2412")
id = dev[0].connect("owe-test", key_mgmt="OWE", ieee80211w="2",
scan_freq="2412")
ev = dev[0].wait_event(["TRANSITION-DISABLE"], timeout=1)
if ev is None:
raise Exception("Transition disable not indicated")
if ev.split(' ')[1] != "08":
raise Exception("Unexpected transition disable bitmap: " + ev)
val = dev[0].get_network(id, "owe_only")
if val != "1":
raise Exception("Unexpected owe_only value: " + val)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].request("RECONNECT")
dev[0].wait_connected()
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