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hostap/tests/hwsim/test_erp.py
Jouni Malinen 81e787b750 tests: Convert test skipping to use exception 
Instead of returning "skip" from the test function, raise the new
HwsimSkip exception to indicate a test case was skipped.

Signed-off-by: Jouni Malinen <j@w1.fi>
2015-01-08 22:43:47 +02:00

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# EAP Re-authentication Protocol (ERP) tests
# Copyright (c) 2014, 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 os
import time
import hostapd
from utils import HwsimSkip
from test_ap_eap import int_eap_server_params
from test_ap_psk import find_wpas_process, read_process_memory, verify_not_present, get_key_locations
def check_erp_capa(dev):
capab = dev.get_capability("erp")
if not capab or 'ERP' not in capab:
raise HwsimSkip("ERP not supported in the build")
def test_erp_initiate_reauth_start(dev, apdev):
"""Authenticator sending EAP-Initiate/Re-auth-Start, but ERP disabled on peer"""
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params['erp_send_reauth_start'] = '1'
params['erp_domain'] = 'example.com'
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].request("ERP_FLUSH")
dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP",
eap="PAX", identity="pax.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412")
def test_erp_enabled_on_server(dev, apdev):
"""ERP enabled on internal EAP server, but disabled on peer"""
params = int_eap_server_params()
params['erp_send_reauth_start'] = '1'
params['erp_domain'] = 'example.com'
params['eap_server_erp'] = '1'
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].request("ERP_FLUSH")
dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP",
eap="PAX", identity="pax.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412")
def test_erp(dev, apdev):
"""ERP enabled on server and peer"""
check_erp_capa(dev[0])
params = int_eap_server_params()
params['erp_send_reauth_start'] = '1'
params['erp_domain'] = 'example.com'
params['eap_server_erp'] = '1'
params['disable_pmksa_caching'] = '1'
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].request("ERP_FLUSH")
dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
erp="1", scan_freq="2412")
for i in range(3):
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
dev[0].request("RECONNECT")
ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
if ev is None:
raise Exception("EAP success timed out")
if "EAP re-authentication completed successfully" not in ev:
raise Exception("Did not use ERP")
dev[0].wait_connected(timeout=15, error="Reconnection timed out")
def test_erp_server_no_match(dev, apdev):
"""ERP enabled on server and peer, but server has no key match"""
check_erp_capa(dev[0])
params = int_eap_server_params()
params['erp_send_reauth_start'] = '1'
params['erp_domain'] = 'example.com'
params['eap_server_erp'] = '1'
params['disable_pmksa_caching'] = '1'
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].request("ERP_FLUSH")
id = dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
erp="1", scan_freq="2412")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
hapd.request("ERP_FLUSH")
dev[0].request("RECONNECT")
ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS",
"CTRL-EVENT-EAP-FAILURE"], timeout=15)
if ev is None:
raise Exception("EAP result timed out")
if "CTRL-EVENT-EAP-SUCCESS" in ev:
raise Exception("Unexpected EAP success")
dev[0].request("DISCONNECT")
dev[0].select_network(id)
ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
if ev is None:
raise Exception("EAP success timed out")
if "EAP re-authentication completed successfully" in ev:
raise Exception("Unexpected use of ERP")
dev[0].wait_connected(timeout=15, error="Reconnection timed out")
def start_erp_as(apdev):
params = { "ssid": "as", "beacon_int": "2000",
"radius_server_clients": "auth_serv/radius_clients.conf",
"radius_server_auth_port": '18128',
"eap_server": "1",
"eap_user_file": "auth_serv/eap_user.conf",
"ca_cert": "auth_serv/ca.pem",
"server_cert": "auth_serv/server.pem",
"private_key": "auth_serv/server.key",
"eap_sim_db": "unix:/tmp/hlr_auc_gw.sock",
"dh_file": "auth_serv/dh.conf",
"pac_opaque_encr_key": "000102030405060708090a0b0c0d0e0f",
"eap_fast_a_id": "101112131415161718191a1b1c1d1e1f",
"eap_fast_a_id_info": "test server",
"eap_server_erp": "1",
"erp_domain": "example.com" }
hostapd.add_ap(apdev['ifname'], params)
def test_erp_radius(dev, apdev):
"""ERP enabled on RADIUS server and peer"""
check_erp_capa(dev[0])
start_erp_as(apdev[1])
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params['auth_server_port'] = "18128"
params['erp_send_reauth_start'] = '1'
params['erp_domain'] = 'example.com'
params['disable_pmksa_caching'] = '1'
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].request("ERP_FLUSH")
dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
erp="1", scan_freq="2412")
for i in range(3):
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
dev[0].request("RECONNECT")
ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
if ev is None:
raise Exception("EAP success timed out")
if "EAP re-authentication completed successfully" not in ev:
raise Exception("Did not use ERP")
dev[0].wait_connected(timeout=15, error="Reconnection timed out")
def erp_test(dev, hapd, **kwargs):
hapd.dump_monitor()
dev.dump_monitor()
dev.request("ERP_FLUSH")
id = dev.connect("test-wpa2-eap", key_mgmt="WPA-EAP", erp="1",
scan_freq="2412", **kwargs)
dev.request("DISCONNECT")
dev.wait_disconnected(timeout=15)
hapd.dump_monitor()
dev.request("RECONNECT")
ev = dev.wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
if ev is None:
raise Exception("EAP success timed out")
if "EAP re-authentication completed successfully" not in ev:
raise Exception("Did not use ERP")
dev.wait_connected(timeout=15, error="Reconnection timed out")
ev = hapd.wait_event([ "AP-STA-CONNECTED" ], timeout=5)
if ev is None:
raise Exception("No connection event received from hostapd")
dev.request("DISCONNECT")
def test_erp_radius_eap_methods(dev, apdev):
"""ERP enabled on RADIUS server and peer"""
check_erp_capa(dev[0])
start_erp_as(apdev[1])
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params['auth_server_port'] = "18128"
params['erp_send_reauth_start'] = '1'
params['erp_domain'] = 'example.com'
params['disable_pmksa_caching'] = '1'
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
erp_test(dev[0], hapd, eap="AKA", identity="0232010000000000@example.com",
password="90dca4eda45b53cf0f12d7c9c3bc6a89:cb9cccc4b9258e6dca4760379fb82581:000000000123")
erp_test(dev[0], hapd, eap="AKA'", identity="6555444333222111@example.com",
password="5122250214c33e723a5dd523fc145fc0:981d464c7c52eb6e5036234984ad0bcf:000000000123")
# TODO: EKE getSession
#erp_test(dev[0], hapd, eap="EKE", identity="erp-eke@example.com",
# password="hello")
erp_test(dev[0], hapd, eap="FAST", identity="erp-fast@example.com",
password="password", ca_cert="auth_serv/ca.pem", phase2="auth=GTC",
phase1="fast_provisioning=2", pac_file="blob://fast_pac_auth_erp")
erp_test(dev[0], hapd, eap="GPSK", identity="erp-gpsk@example.com",
password="abcdefghijklmnop0123456789abcdef")
erp_test(dev[0], hapd, eap="IKEV2", identity="erp-ikev2@example.com",
password="password")
erp_test(dev[0], hapd, eap="PAX", identity="erp-pax@example.com",
password_hex="0123456789abcdef0123456789abcdef")
# TODO: PEAP (EMSK)
#erp_test(dev[0], hapd, eap="PEAP", identity="erp-peap@example.com",
# password="password", ca_cert="auth_serv/ca.pem",
# phase2="auth=MSCHAPV2")
erp_test(dev[0], hapd, eap="PSK", identity="erp-psk@example.com",
password_hex="0123456789abcdef0123456789abcdef")
erp_test(dev[0], hapd, eap="PWD", identity="erp-pwd@example.com",
password="secret password")
erp_test(dev[0], hapd, eap="SAKE", identity="erp-sake@example.com",
password_hex="0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")
erp_test(dev[0], hapd, eap="SIM", identity="1232010000000000@example.com",
password="90dca4eda45b53cf0f12d7c9c3bc6a89:cb9cccc4b9258e6dca4760379fb82581")
erp_test(dev[0], hapd, eap="TLS", identity="erp-tls@example.com",
ca_cert="auth_serv/ca.pem", client_cert="auth_serv/user.pem",
private_key="auth_serv/user.key")
erp_test(dev[0], hapd, eap="TTLS", identity="erp-ttls@example.com",
password="password", ca_cert="auth_serv/ca.pem", phase2="auth=PAP")
def test_erp_key_lifetime_in_memory(dev, apdev, params):
"""ERP and key lifetime in memory"""
check_erp_capa(dev[0])
p = int_eap_server_params()
p['erp_send_reauth_start'] = '1'
p['erp_domain'] = 'example.com'
p['eap_server_erp'] = '1'
p['disable_pmksa_caching'] = '1'
hapd = hostapd.add_ap(apdev[0]['ifname'], p)
password = "63d2d21ac3c09ed567ee004a34490f1d16e7fa5835edf17ddba70a63f1a90a25"
pid = find_wpas_process(dev[0])
dev[0].request("ERP_FLUSH")
dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="TTLS",
identity="pap-secret@example.com", password=password,
ca_cert="auth_serv/ca.pem", phase2="auth=PAP",
erp="1", scan_freq="2412")
time.sleep(0.1)
buf = read_process_memory(pid, password)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
dev[0].relog()
msk = None
emsk = None
rRK = None
rIK = None
pmk = None
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
for l in f.readlines():
if "EAP-TTLS: Derived key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
msk = binascii.unhexlify(val)
if "EAP-TTLS: Derived EMSK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
emsk = binascii.unhexlify(val)
if "EAP: ERP rRK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
rRK = binascii.unhexlify(val)
if "EAP: ERP rIK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
rIK = binascii.unhexlify(val)
if "WPA: PMK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmk = binascii.unhexlify(val)
if "WPA: PTK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
ptk = binascii.unhexlify(val)
if "WPA: Group Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not msk or not emsk or not rIK or not rRK or not pmk or not ptk or not gtk:
raise Exception("Could not find keys from debug log")
if len(gtk) != 16:
raise Exception("Unexpected GTK length")
kck = ptk[0:16]
kek = ptk[16:32]
tk = ptk[32:48]
fname = os.path.join(params['logdir'],
'erp_key_lifetime_in_memory.memctx-')
logger.info("Checking keys in memory while associated")
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
if password not in buf:
raise HwsimSkip("Password not found while associated")
if pmk not in buf:
raise HwsimSkip("PMK not found while associated")
if kck not in buf:
raise Exception("KCK not found while associated")
if kek not in buf:
raise Exception("KEK not found while associated")
if tk in buf:
raise Exception("TK found from memory")
if gtk in buf:
raise Exception("GTK found from memory")
logger.info("Checking keys in memory after disassociation")
buf = read_process_memory(pid, password)
# Note: Password is still present in network configuration
# Note: PMK is in EAP fast re-auth data
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
dev[0].request("RECONNECT")
ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
if ev is None:
raise Exception("EAP success timed out")
if "EAP re-authentication completed successfully" not in ev:
raise Exception("Did not use ERP")
dev[0].wait_connected(timeout=15, error="Reconnection timed out")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
dev[0].relog()
pmk = None
ptk = None
gtk = None
with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
for l in f.readlines():
if "WPA: PMK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
pmk = binascii.unhexlify(val)
if "WPA: PTK - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
ptk = binascii.unhexlify(val)
if "WPA: GTK in EAPOL-Key - hexdump" in l:
val = l.strip().split(':')[3].replace(' ', '')
gtk = binascii.unhexlify(val)
if not pmk or not ptk or not gtk:
raise Exception("Could not find keys from debug log")
kck = ptk[0:16]
kek = ptk[16:32]
tk = ptk[32:48]
logger.info("Checking keys in memory after ERP and disassociation")
buf = read_process_memory(pid, password)
# Note: Password is still present in network configuration
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
dev[0].request("REMOVE_NETWORK all")
logger.info("Checking keys in memory after network profile removal")
buf = read_process_memory(pid, password)
# Note: rRK and rIK are still in memory
get_key_locations(buf, password, "Password")
get_key_locations(buf, pmk, "PMK")
get_key_locations(buf, msk, "MSK")
get_key_locations(buf, emsk, "EMSK")
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, password, fname, "password")
verify_not_present(buf, pmk, fname, "PMK")
verify_not_present(buf, kck, fname, "KCK")
verify_not_present(buf, kek, fname, "KEK")
verify_not_present(buf, tk, fname, "TK")
verify_not_present(buf, gtk, fname, "GTK")
verify_not_present(buf, msk, fname, "MSK")
verify_not_present(buf, emsk, fname, "EMSK")
dev[0].request("ERP_FLUSH")
logger.info("Checking keys in memory after ERP_FLUSH")
buf = read_process_memory(pid, password)
get_key_locations(buf, rRK, "rRK")
get_key_locations(buf, rIK, "rIK")
verify_not_present(buf, rRK, fname, "rRK")
verify_not_present(buf, rIK, fname, "rIK")
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