# 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 socket
+import struct
import subprocess
import time
import hostapd
import hwsim_utils
from wpasupplicant import WpaSupplicant
-from utils import alloc_fail, HwsimSkip
+from utils import alloc_fail, HwsimSkip, wait_fail_trigger
from test_ap_eap import eap_connect
def test_pmksa_cache_on_roam_back(dev, apdev):
if ev is None:
raise Exception("EAP authentication did not succeed")
+def test_pmksa_cache_and_ptk_rekey_ap(dev, apdev):
+ """PMKSA caching and PTK rekey triggered by AP"""
+ params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache")
+ params['wpa_ptk_rekey'] = '2'
+ hapd = hostapd.add_ap(apdev[0], params)
+ bssid = apdev[0]['bssid']
+ dev[0].connect("test-pmksa-cache", proto="RSN", key_mgmt="WPA-EAP",
+ eap="GPSK", identity="gpsk user",
+ password="abcdefghijklmnop0123456789abcdef",
+ scan_freq="2412")
+
+ hostapd.add_ap(apdev[1], params)
+ bssid2 = apdev[1]['bssid']
+
+ dev[0].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(0, 10):
+ dev[0].scan(freq="2412")
+ if dev[0].get_bss(bssid2) is not None:
+ break
+ logger.info("Scan again to find target AP")
+ dev[0].request("ROAM " + bssid2)
+ ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=10)
+ if ev is None:
+ raise Exception("EAP success timed out")
+ dev[0].wait_connected(timeout=10, error="Roaming timed out")
+
+ dev[0].dump_monitor()
+ logger.info("Roam back to AP1")
+ dev[0].scan(freq="2412")
+ dev[0].request("ROAM " + bssid)
+ ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
+ "CTRL-EVENT-CONNECTED"], timeout=10)
+ if ev is None:
+ raise Exception("Roaming with the AP timed out")
+ if "CTRL-EVENT-EAP-STARTED" in ev:
+ raise Exception("Unexpected EAP exchange")
+
+ # Verify PTK rekeying after PMKSA caching
+ ev = dev[0].wait_event(["WPA: Key negotiation completed"], timeout=3)
+ if ev is None:
+ raise Exception("PTK rekey timed out")
+
def test_pmksa_cache_opportunistic_only_on_sta(dev, apdev):
"""Opportunistic PMKSA caching enabled only on station"""
params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache")
pmksa = dev[0].get_pmksa(bssid)
if pmksa is None:
raise Exception("No PMKSA cache entry created")
- ev = hapd.wait_event([ "AP-STA-CONNECTED" ], timeout=5)
+ ev = hapd.wait_event(["AP-STA-CONNECTED"], timeout=5)
if ev is None:
raise Exception("No connection event received from hostapd")
if state != "COMPLETED":
raise Exception("Reauthentication did not complete")
+def test_pmksa_cache_preauth_auto(dev, apdev):
+ """RSN pre-authentication based on pre-connection scan results"""
+ try:
+ run_pmksa_cache_preauth_auto(dev, apdev)
+ finally:
+ hostapd.cmd_execute(apdev[0], ['ip', 'link', 'set', 'dev',
+ 'ap-br0', 'down', '2>', '/dev/null'],
+ shell=True)
+ hostapd.cmd_execute(apdev[0], ['brctl', 'delbr', 'ap-br0',
+ '2>', '/dev/null'], shell=True)
+
+def run_pmksa_cache_preauth_auto(dev, apdev):
+ params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
+ params['bridge'] = 'ap-br0'
+ params['rsn_preauth'] = '1'
+ params['rsn_preauth_interfaces'] = 'ap-br0'
+
+ hapd = hostapd.add_ap(apdev[0], params)
+ hapd.cmd_execute(['brctl', 'setfd', 'ap-br0', '0'])
+ hapd.cmd_execute(['ip', 'link', 'set', 'dev', 'ap-br0', 'up'])
+ hapd2 = hostapd.add_ap(apdev[1], params)
+
+ eap_connect(dev[0], None, "PAX", "pax.user@example.com",
+ password_hex="0123456789abcdef0123456789abcdef")
+
+ found = False
+ for i in range(20):
+ time.sleep(0.5)
+ res1 = dev[0].get_pmksa(apdev[0]['bssid'])
+ res2 = dev[0].get_pmksa(apdev[1]['bssid'])
+ if res1 and res2:
+ found = True
+ break
+ if not found:
+ raise Exception("The expected PMKSA cache entries not found")
+
def generic_pmksa_cache_preauth(dev, apdev, extraparams, identity, databridge,
force_disconnect=False):
if not extraparams:
try:
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params['bridge'] = 'ap-br0'
- for key, value in extraparams[0].iteritems():
+ for key, value in extraparams[0].items():
params[key] = value
hapd = hostapd.add_ap(apdev[0], params)
params['bridge'] = 'ap-br0'
params['rsn_preauth'] = '1'
params['rsn_preauth_interfaces'] = databridge
- for key, value in extraparams[1].iteritems():
+ for key, value in extraparams[1].items():
params[key] = value
hostapd.add_ap(apdev[1], params)
bssid1 = apdev[1]['bssid']
eap="GPSK", identity="gpsk-user-session-timeout",
password="abcdefghijklmnop0123456789abcdef",
scan_freq="2412")
- ev = hapd.wait_event([ "AP-STA-CONNECTED" ], timeout=5)
+ ev = hapd.wait_event(["AP-STA-CONNECTED"], timeout=5)
if ev is None:
raise Exception("No connection event received from hostapd")
dev[0].request("DISCONNECT")
bssid2 = apdev[1]['bssid']
logger.info("Roam to AP2")
- for sta in [ dev[1], dev[0], dev[2], wpas ]:
+ for sta in [dev[1], dev[0], dev[2], wpas]:
sta.dump_monitor()
sta.scan_for_bss(bssid2, freq="2412")
if "OK" not in sta.request("ROAM " + bssid2):
sta.dump_monitor()
logger.info("Roam back to AP1")
- for sta in [ dev[1], wpas, dev[0], dev[2] ]:
+ for sta in [dev[1], wpas, dev[0], dev[2]]:
sta.dump_monitor()
sta.scan(freq="2412")
sta.dump_monitor()
time.sleep(4)
logger.info("Roam back to AP2")
- for sta in [ dev[1], wpas, dev[0], dev[2] ]:
+ for sta in [dev[1], wpas, dev[0], dev[2]]:
sta.dump_monitor()
sta.scan(freq="2412")
sta.dump_monitor()
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5")
wpas.flush_scan_cache()
- for sta in [ dev[0], dev[1], dev[2], wpas ]:
+ for sta in [dev[0], dev[1], dev[2], wpas]:
sta.connect("test-pmksa-cache", proto="RSN", key_mgmt="WPA-EAP",
eap="GPSK", identity="gpsk user",
password="abcdefghijklmnop0123456789abcdef", okc=True,
bssid2 = apdev[1]['bssid']
logger.info("Roam to AP2")
- for sta in [ dev[2], dev[0], wpas, dev[1] ]:
+ for sta in [dev[2], dev[0], wpas, dev[1]]:
sta.dump_monitor()
sta.scan_for_bss(bssid2, freq="2412")
if "OK" not in sta.request("ROAM " + bssid2):
sta.dump_monitor()
logger.info("Roam back to AP1")
- for sta in [ dev[0], dev[1], dev[2], wpas ]:
+ for sta in [dev[0], dev[1], dev[2], wpas]:
sta.dump_monitor()
sta.scan_for_bss(bssid, freq="2412")
sta.request("ROAM " + bssid)
hapd = hostapd.add_ap(apdev[1], params)
bssid1 = apdev[1]['bssid']
- tests = [ (1, "rsn_preauth_receive"),
- (2, "rsn_preauth_receive"),
- (1, "rsn_preauth_send") ]
+ tests = [(1, "rsn_preauth_receive"),
+ (2, "rsn_preauth_receive"),
+ (1, "rsn_preauth_send"),
+ (1, "wpa_auth_pmksa_add_preauth;rsn_preauth_finished")]
for test in tests:
+ hapd.request("DEAUTHENTICATE ff:ff:ff:ff:ff:ff")
with alloc_fail(hapd, test[0], test[1]):
dev[0].scan_for_bss(bssid1, freq="2412")
if "OK" not in dev[0].request("PREAUTH " + bssid1):
raise Exception("Connection with the AP timed out")
if "CTRL-EVENT-EAP-STARTED" in ev:
raise Exception("Unexpected EAP exchange after external PMKSA cache restore")
+
+def test_rsn_preauth_processing(dev, apdev):
+ """RSN pre-authentication processing on AP"""
+ params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
+ params['rsn_preauth'] = '1'
+ params['rsn_preauth_interfaces'] = "lo"
+ hapd = hostapd.add_ap(apdev[0], params)
+ bssid = hapd.own_addr()
+ _bssid = binascii.unhexlify(bssid.replace(':', ''))
+ eap_connect(dev[0], hapd, "PAX", "pax.user@example.com",
+ password_hex="0123456789abcdef0123456789abcdef")
+ addr = dev[0].own_addr()
+ _addr = binascii.unhexlify(addr.replace(':', ''))
+
+ sock = socket.socket(socket.AF_PACKET, socket.SOCK_RAW,
+ socket.htons(0x88c7))
+ sock.bind(("lo", socket.htons(0x88c7)))
+
+ foreign = b"\x02\x03\x04\x05\x06\x07"
+ proto = b"\x88\xc7"
+ tests = []
+ # RSN: too short pre-auth packet (len=14)
+ tests += [_bssid + foreign + proto]
+ # Not EAPOL-Start
+ tests += [_bssid + foreign + proto + struct.pack('>BBH', 0, 0, 0)]
+ # RSN: pre-auth for foreign address 02:03:04:05:06:07
+ tests += [foreign + foreign + proto + struct.pack('>BBH', 0, 0, 0)]
+ # RSN: pre-auth for already association STA 02:00:00:00:00:00
+ tests += [_bssid + _addr + proto + struct.pack('>BBH', 0, 0, 0)]
+ # New STA
+ tests += [_bssid + foreign + proto + struct.pack('>BBH', 0, 1, 1)]
+ # IEEE 802.1X: received EAPOL-Start from STA
+ tests += [_bssid + foreign + proto + struct.pack('>BBH', 0, 1, 0)]
+ # frame too short for this IEEE 802.1X packet
+ tests += [_bssid + foreign + proto + struct.pack('>BBH', 0, 1, 1)]
+ # EAPOL-Key - Dropped key data from unauthorized Supplicant
+ tests += [_bssid + foreign + proto + struct.pack('>BBH', 2, 3, 0)]
+ # EAPOL-Encapsulated-ASF-Alert
+ tests += [_bssid + foreign + proto + struct.pack('>BBH', 2, 4, 0)]
+ # unknown IEEE 802.1X packet type
+ tests += [_bssid + foreign + proto + struct.pack('>BBH', 2, 255, 0)]
+ for t in tests:
+ sock.send(t)
+
+def test_rsn_preauth_local_errors(dev, apdev):
+ """RSN pre-authentication and local errors on AP"""
+ params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
+ params['rsn_preauth'] = '1'
+ params['rsn_preauth_interfaces'] = "lo"
+ hapd = hostapd.add_ap(apdev[0], params)
+ bssid = hapd.own_addr()
+ _bssid = binascii.unhexlify(bssid.replace(':', ''))
+
+ sock = socket.socket(socket.AF_PACKET, socket.SOCK_RAW,
+ socket.htons(0x88c7))
+ sock.bind(("lo", socket.htons(0x88c7)))
+
+ foreign = b"\x02\x03\x04\x05\x06\x07"
+ foreign2 = b"\x02\x03\x04\x05\x06\x08"
+ proto = b"\x88\xc7"
+
+ with alloc_fail(hapd, 1, "ap_sta_add;rsn_preauth_receive"):
+ sock.send(_bssid + foreign + proto + struct.pack('>BBH', 2, 1, 0))
+ wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
+
+ with alloc_fail(hapd, 1, "eapol_auth_alloc;rsn_preauth_receive"):
+ sock.send(_bssid + foreign + proto + struct.pack('>BBH', 2, 1, 0))
+ wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
+ sock.send(_bssid + foreign + proto + struct.pack('>BBH', 2, 1, 0))
+
+ with alloc_fail(hapd, 1, "eap_server_sm_init;ieee802_1x_new_station;rsn_preauth_receive"):
+ sock.send(_bssid + foreign2 + proto + struct.pack('>BBH', 2, 1, 0))
+ wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
+ sock.send(_bssid + foreign2 + proto + struct.pack('>BBH', 2, 1, 0))
+
+ hapd.request("DISABLE")
+ tests = [(1, "=rsn_preauth_iface_add"),
+ (2, "=rsn_preauth_iface_add"),
+ (1, "l2_packet_init;rsn_preauth_iface_add"),
+ (1, "rsn_preauth_iface_init"),
+ (1, "rsn_preauth_iface_init")]
+ for count, func in tests:
+ with alloc_fail(hapd, count, func):
+ if "FAIL" not in hapd.request("ENABLE"):
+ raise Exception("ENABLE succeeded unexpectedly")
+
+ hapd.set("rsn_preauth_interfaces", "lo lo lo does-not-exist lo ")
+ if "FAIL" not in hapd.request("ENABLE"):
+ raise Exception("ENABLE succeeded unexpectedly")
+ hapd.set("rsn_preauth_interfaces", " lo lo ")
+ if "OK" not in hapd.request("ENABLE"):
+ raise Exception("ENABLE failed")
+ sock.send(_bssid + foreign + proto + struct.pack('>BBH', 2, 1, 0))
+ sock.send(_bssid + foreign2 + proto + struct.pack('>BBH', 2, 1, 0))
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