hostap/tests/hwsim/test_peerkey.py

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# PeerKey tests
# Copyright (c) 2013-2016, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
from remotehost import remote_compatible
import logging
logger = logging.getLogger()
import os
import time
import hwsim_utils
import hostapd
from utils import skip_with_fips
from wlantest import Wlantest
from tshark import run_tshark
@remote_compatible
def test_peerkey(dev, apdev):
"""RSN AP and PeerKey between two STAs"""
ssid = "test-peerkey"
passphrase = "12345678"
params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
params['peerkey'] = "1"
hostapd.add_ap(apdev[0], params)
dev[0].connect(ssid, psk=passphrase, scan_freq="2412", peerkey=True)
dev[1].connect(ssid, psk=passphrase, scan_freq="2412", peerkey=True)
hwsim_utils.test_connectivity_sta(dev[0], dev[1])
dev[0].request("STKSTART " + dev[1].p2p_interface_addr())
time.sleep(0.5)
# NOTE: Actual use of the direct link (DLS) is not supported in
# mac80211_hwsim, so this operation fails at setting the keys after
# successfully completed 4-way handshake. This test case does allow the
# key negotiation part to be tested for coverage, though.
def test_peerkey_sniffer_check(dev, apdev, params):
"""RSN AP and PeerKey between two STAs with sniffer check"""
ssid = "test-peerkey"
passphrase = "12345678"
hparams = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
hparams['peerkey'] = "1"
hapd = hostapd.add_ap(apdev[0], hparams)
Wlantest.setup(hapd)
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
dev[0].connect(ssid, psk=passphrase, scan_freq="2412", peerkey=True)
dev[1].connect(ssid, psk=passphrase, scan_freq="2412", peerkey=True)
hwsim_utils.test_connectivity_sta(dev[0], dev[1])
dev[0].request("STKSTART " + dev[1].p2p_interface_addr())
time.sleep(1)
# NOTE: Actual use of the direct link (DLS) is not supported in
# mac80211_hwsim, so this operation fails at setting the keys after
# successfully completed 4-way handshake. This test case does allow the
# key negotiation part to be tested for coverage, though. Use sniffer to
# verify that all the SMK and STK handshake messages were transmitted.
bssid = hapd.own_addr()
addr0 = dev[0].own_addr()
addr1 = dev[1].own_addr()
# Wireshark renamed the EAPOL-Key key_info field, so need to try both the
# new and the old name to work with both versions.
try_other = False
try:
out = run_tshark(os.path.join(params['logdir'], "hwsim0.pcapng"),
"eapol.type == 3",
display=["wlan.sa", "wlan.da",
"wlan_rsna_eapol.keydes.key_info"])
except Exception, e:
if "Unknown tshark field" in str(e):
try_other = True
pass
else:
raise
if try_other:
out = run_tshark(os.path.join(params['logdir'], "hwsim0.pcapng"),
"eapol.type == 3",
display=["wlan.sa", "wlan.da",
"eapol.keydes.key_info"],
wait=False)
smk = [ False, False, False, False, False ]
stk = [ False, False, False, False ]
for pkt in out.splitlines():
sa, da, key_info = pkt.split('\t')
key_info = int(key_info, 16)
if sa == addr0 and da == bssid and key_info == 0x2b02:
# Initiator -> AP: MIC+Secure+Request+SMK = SMK 1
smk[0] = True
elif sa == bssid and da == addr1 and key_info == 0x2382:
# AP -> Responder: ACK+MIC+Secure+SMK = SMK 2
smk[1] = True
elif sa == addr1 and da == bssid and key_info == 0x2302:
# Responder -> AP: MIC+Secure+SMK = SMK 3
smk[2] = True
elif sa == bssid and da == addr1 and key_info == 0x3342:
# AP -> Responder: Install+MIC+Secure+EncrKeyData+SMK = SMK 4
smk[3] = True
elif sa == bssid and da == addr0 and key_info == 0x3302:
# AP -> Initiator: MIC+Secure+EncrKeyData+SMK = SMK 5
smk[4] = True
elif sa == addr0 and da == addr1 and key_info == 0x008a:
# Initiator -> Responder: Pairwise+ACK = STK 1
stk[0] = True
elif sa == addr1 and da == addr0 and key_info == 0x010a:
# Responder -> Initiator: Pairwise+MIC = STK 2
stk[1] = True
elif sa == addr0 and da == addr1 and key_info == 0x038a:
# Initiator -> Responder: Pairwise+ACK+MIC+Secure = STK 3
stk[2] = True
elif sa == addr1 and da == addr0 and key_info == 0x030a:
# Responder -> Initiator: Pairwise+MIC+Secure = STK 4
stk[3] = True
logger.info("Seen SMK messages: " + str(smk))
logger.info("Seen STK messages: " + str(stk))
if False in smk:
raise Exception("Missing SMK message: " + str(smk))
if False in stk:
raise Exception("Missing STK message: " + str(stk))
def test_peerkey_unknown_peer(dev, apdev):
"""RSN AP and PeerKey attempt with unknown peer"""
ssid = "test-peerkey"
passphrase = "12345678"
params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
params['peerkey'] = "1"
hostapd.add_ap(apdev[0], params)
dev[0].connect(ssid, psk=passphrase, scan_freq="2412", peerkey=True)
dev[1].connect(ssid, psk=passphrase, scan_freq="2412", peerkey=True)
hwsim_utils.test_connectivity_sta(dev[0], dev[1])
dev[0].request("STKSTART " + dev[2].p2p_interface_addr())
time.sleep(0.5)
@remote_compatible
def test_peerkey_pairwise_mismatch(dev, apdev):
"""RSN TKIP+CCMP AP and PeerKey between two STAs using different ciphers"""
skip_with_fips(dev[0])
ssid = "test-peerkey"
passphrase = "12345678"
params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
params['peerkey'] = "1"
params['rsn_pairwise'] = "TKIP CCMP"
hapd = hostapd.add_ap(apdev[0], params)
Wlantest.setup(hapd)
wt = Wlantest()
wt.flush()
wt.add_passphrase("12345678")
dev[0].connect(ssid, psk=passphrase, scan_freq="2412", peerkey=True,
pairwise="CCMP")
dev[1].connect(ssid, psk=passphrase, scan_freq="2412", peerkey=True,
pairwise="TKIP")
hwsim_utils.test_connectivity_sta(dev[0], dev[1])
dev[0].request("STKSTART " + dev[1].p2p_interface_addr())
time.sleep(0.5)
dev[1].request("STKSTART " + dev[0].p2p_interface_addr())
time.sleep(0.5)