tests/hwsim/test_ap_psk.py

   1 # WPA2-Personal tests
   2 # Copyright (c) 2014, Qualcomm Atheros, Inc.
   3 #
   4 # This software may be distributed under the terms of the BSD license.
   5 # See README for more details.
   6
   7 import binascii
   8 import hashlib
   9 import hmac
  10 import logging
  11 logger = logging.getLogger()
  12 import os
  13 import re
  14 import struct
  15 import subprocess
  16 import time
  17
  18 import hostapd
  19 from utils import HwsimSkip
  20 import hwsim_utils
  21 from wpasupplicant import WpaSupplicant
  22
  23 def check_mib(dev, vals):
  24     mib = dev.get_mib()
  25     for v in vals:
  26         if mib[v[0]] != v[1]:
  27             raise Exception("Unexpected {} = {} (expected {})".format(v[0], mib[v[0]], v[1]))
  28
  29 def test_ap_wpa2_psk(dev, apdev):
  30     """WPA2-PSK AP with PSK instead of passphrase"""
  31     ssid = "test-wpa2-psk"
  32     passphrase = 'qwertyuiop'
  33     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
  34     params = hostapd.wpa2_params(ssid=ssid)
  35     params['wpa_psk'] = psk
  36     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  37     key_mgmt = hapd.get_config()['key_mgmt']
  38     if key_mgmt.split(' ')[0] != "WPA-PSK":
  39         raise Exception("Unexpected GET_CONFIG(key_mgmt): " + key_mgmt)
  40     dev[0].connect(ssid, raw_psk=psk, scan_freq="2412")
  41     dev[1].connect(ssid, psk=passphrase, scan_freq="2412")
  42
  43     sig = dev[0].request("SIGNAL_POLL").splitlines()
  44     pkt = dev[0].request("PKTCNT_POLL").splitlines()
  45     if "FREQUENCY=2412" not in sig:
  46         raise Exception("Unexpected SIGNAL_POLL value: " + str(sig))
  47     if "TXBAD=0" not in pkt:
  48         raise Exception("Unexpected TXBAD value: " + str(pkt))
  49
  50 def test_ap_wpa2_psk_file(dev, apdev):
  51     """WPA2-PSK AP with PSK from a file"""
  52     ssid = "test-wpa2-psk"
  53     passphrase = 'qwertyuiop'
  54     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
  55     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
  56     params['wpa_psk_file'] = 'hostapd.wpa_psk'
  57     hostapd.add_ap(apdev[0]['ifname'], params)
  58     dev[1].connect(ssid, psk="very secret", scan_freq="2412", wait_connect=False)
  59     dev[2].connect(ssid, raw_psk=psk, scan_freq="2412")
  60     dev[2].request("REMOVE_NETWORK all")
  61     dev[0].connect(ssid, psk="very secret", scan_freq="2412")
  62     dev[0].request("REMOVE_NETWORK all")
  63     dev[2].connect(ssid, psk="another passphrase for all STAs", scan_freq="2412")
  64     dev[0].connect(ssid, psk="another passphrase for all STAs", scan_freq="2412")
  65     ev = dev[1].wait_event(["WPA: 4-Way Handshake failed"], timeout=10)
  66     if ev is None:
  67         raise Exception("Timed out while waiting for failure report")
  68     dev[1].request("REMOVE_NETWORK all")
  69
  70 def test_ap_wpa2_ptk_rekey(dev, apdev):
  71     """WPA2-PSK AP and PTK rekey enforced by station"""
  72     ssid = "test-wpa2-psk"
  73     passphrase = 'qwertyuiop'
  74     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
  75     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  76     dev[0].connect(ssid, psk=passphrase, wpa_ptk_rekey="1", scan_freq="2412")
  77     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
  78     if ev is None:
  79         raise Exception("PTK rekey timed out")
  80     hwsim_utils.test_connectivity(dev[0], hapd)
  81
  82 def test_ap_wpa2_ptk_rekey_ap(dev, apdev):
  83     """WPA2-PSK AP and PTK rekey enforced by AP"""
  84     ssid = "test-wpa2-psk"
  85     passphrase = 'qwertyuiop'
  86     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
  87     params['wpa_ptk_rekey'] = '2'
  88     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  89     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
  90     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
  91     if ev is None:
  92         raise Exception("PTK rekey timed out")
  93     hwsim_utils.test_connectivity(dev[0], hapd)
  94
  95 def test_ap_wpa2_sha256_ptk_rekey(dev, apdev):
  96     """WPA2-PSK/SHA256 AKM AP and PTK rekey enforced by station"""
  97     ssid = "test-wpa2-psk"
  98     passphrase = 'qwertyuiop'
  99     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 100     params["wpa_key_mgmt"] = "WPA-PSK-SHA256"
 101     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 102     dev[0].connect(ssid, psk=passphrase, key_mgmt="WPA-PSK-SHA256",
 103                    wpa_ptk_rekey="1", scan_freq="2412")
 104     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
 105     if ev is None:
 106         raise Exception("PTK rekey timed out")
 107     hwsim_utils.test_connectivity(dev[0], hapd)
 108     check_mib(dev[0], [ ("dot11RSNAAuthenticationSuiteRequested", "00-0f-ac-6"),
 109                         ("dot11RSNAAuthenticationSuiteSelected", "00-0f-ac-6") ])
 110
 111 def test_ap_wpa2_sha256_ptk_rekey_ap(dev, apdev):
 112     """WPA2-PSK/SHA256 AKM AP and PTK rekey enforced by AP"""
 113     ssid = "test-wpa2-psk"
 114     passphrase = 'qwertyuiop'
 115     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 116     params["wpa_key_mgmt"] = "WPA-PSK-SHA256"
 117     params['wpa_ptk_rekey'] = '2'
 118     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 119     dev[0].connect(ssid, psk=passphrase, key_mgmt="WPA-PSK-SHA256",
 120                    scan_freq="2412")
 121     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
 122     if ev is None:
 123         raise Exception("PTK rekey timed out")
 124     hwsim_utils.test_connectivity(dev[0], hapd)
 125     check_mib(dev[0], [ ("dot11RSNAAuthenticationSuiteRequested", "00-0f-ac-6"),
 126                         ("dot11RSNAAuthenticationSuiteSelected", "00-0f-ac-6") ])
 127
 128 def test_ap_wpa_ptk_rekey(dev, apdev):
 129     """WPA-PSK/TKIP AP and PTK rekey enforced by station"""
 130     ssid = "test-wpa-psk"
 131     passphrase = 'qwertyuiop'
 132     params = hostapd.wpa_params(ssid=ssid, passphrase=passphrase)
 133     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 134     dev[0].connect(ssid, psk=passphrase, wpa_ptk_rekey="1", scan_freq="2412")
 135     if "[WPA-PSK-TKIP]" not in dev[0].request("SCAN_RESULTS"):
 136         raise Exception("Scan results missing WPA element info")
 137     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
 138     if ev is None:
 139         raise Exception("PTK rekey timed out")
 140     hwsim_utils.test_connectivity(dev[0], hapd)
 141
 142 def test_ap_wpa_ptk_rekey_ap(dev, apdev):
 143     """WPA-PSK/TKIP AP and PTK rekey enforced by AP"""
 144     ssid = "test-wpa-psk"
 145     passphrase = 'qwertyuiop'
 146     params = hostapd.wpa_params(ssid=ssid, passphrase=passphrase)
 147     params['wpa_ptk_rekey'] = '2'
 148     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 149     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 150     ev = dev[0].wait_event(["WPA: Key negotiation completed"], timeout=10)
 151     if ev is None:
 152         raise Exception("PTK rekey timed out")
 153     hwsim_utils.test_connectivity(dev[0], hapd)
 154
 155 def test_ap_wpa_ccmp(dev, apdev):
 156     """WPA-PSK/CCMP"""
 157     ssid = "test-wpa-psk"
 158     passphrase = 'qwertyuiop'
 159     params = hostapd.wpa_params(ssid=ssid, passphrase=passphrase)
 160     params['wpa_pairwise'] = "CCMP"
 161     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 162     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 163     hwsim_utils.test_connectivity(dev[0], hapd)
 164     check_mib(dev[0], [ ("dot11RSNAConfigGroupCipherSize", "128"),
 165                         ("dot11RSNAGroupCipherRequested", "00-50-f2-4"),
 166                         ("dot11RSNAPairwiseCipherRequested", "00-50-f2-4"),
 167                         ("dot11RSNAAuthenticationSuiteRequested", "00-50-f2-2"),
 168                         ("dot11RSNAGroupCipherSelected", "00-50-f2-4"),
 169                         ("dot11RSNAPairwiseCipherSelected", "00-50-f2-4"),
 170                         ("dot11RSNAAuthenticationSuiteSelected", "00-50-f2-2"),
 171                         ("dot1xSuppSuppControlledPortStatus", "Authorized") ])
 172
 173 def test_ap_wpa2_psk_file(dev, apdev):
 174     """WPA2-PSK AP with various PSK file error and success cases"""
 175     addr0 = dev[0].own_addr()
 176     addr1 = dev[1].own_addr()
 177     addr2 = dev[2].own_addr()
 178     ssid = "psk"
 179     pskfile = "/tmp/ap_wpa2_psk_file_errors.psk_file"
 180     try:
 181         os.remove(pskfile)
 182     except:
 183         pass
 184
 185     params = { "ssid": ssid, "wpa": "2", "wpa_key_mgmt": "WPA-PSK",
 186                "rsn_pairwise": "CCMP", "wpa_psk_file": pskfile }
 187
 188     try:
 189         # missing PSK file
 190         hapd = hostapd.add_ap(apdev[0]['ifname'], params, no_enable=True)
 191         if "FAIL" not in hapd.request("ENABLE"):
 192             raise Exception("Unexpected ENABLE success")
 193         hapd.request("DISABLE")
 194
 195         # invalid MAC address
 196         with open(pskfile, "w") as f:
 197             f.write("\n")
 198             f.write("foo\n")
 199         if "FAIL" not in hapd.request("ENABLE"):
 200             raise Exception("Unexpected ENABLE success")
 201         hapd.request("DISABLE")
 202
 203         # no PSK on line
 204         with open(pskfile, "w") as f:
 205             f.write("00:11:22:33:44:55\n")
 206         if "FAIL" not in hapd.request("ENABLE"):
 207             raise Exception("Unexpected ENABLE success")
 208         hapd.request("DISABLE")
 209
 210         # invalid PSK
 211         with open(pskfile, "w") as f:
 212             f.write("00:11:22:33:44:55 1234567\n")
 213         if "FAIL" not in hapd.request("ENABLE"):
 214             raise Exception("Unexpected ENABLE success")
 215         hapd.request("DISABLE")
 216
 217         # valid PSK file
 218         with open(pskfile, "w") as f:
 219             f.write("00:11:22:33:44:55 12345678\n")
 220             f.write(addr0 + " 123456789\n")
 221             f.write(addr1 + " 123456789a\n")
 222             f.write(addr2 + " 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef\n")
 223         if "FAIL" in hapd.request("ENABLE"):
 224             raise Exception("Unexpected ENABLE failure")
 225
 226         dev[0].connect(ssid, psk="123456789", scan_freq="2412")
 227         dev[1].connect(ssid, psk="123456789a", scan_freq="2412")
 228         dev[2].connect(ssid, raw_psk="0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef", scan_freq="2412")
 229
 230     finally:
 231         try:
 232             os.remove(pskfile)
 233         except:
 234             pass
 235
 236 def test_ap_wpa2_psk_wildcard_ssid(dev, apdev):
 237     """WPA2-PSK AP and wildcard SSID configuration"""
 238     ssid = "test-wpa2-psk"
 239     passphrase = 'qwertyuiop'
 240     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
 241     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 242     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 243     dev[0].connect("", bssid=apdev[0]['bssid'], psk=passphrase,
 244                    scan_freq="2412")
 245     dev[1].connect("", bssid=apdev[0]['bssid'], raw_psk=psk, scan_freq="2412")
 246
 247 def test_ap_wpa2_gtk_rekey(dev, apdev):
 248     """WPA2-PSK AP and GTK rekey enforced by AP"""
 249     ssid = "test-wpa2-psk"
 250     passphrase = 'qwertyuiop'
 251     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 252     params['wpa_group_rekey'] = '1'
 253     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 254     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 255     ev = dev[0].wait_event(["WPA: Group rekeying completed"], timeout=2)
 256     if ev is None:
 257         raise Exception("GTK rekey timed out")
 258     hwsim_utils.test_connectivity(dev[0], hapd)
 259
 260 def test_ap_wpa_gtk_rekey(dev, apdev):
 261     """WPA-PSK/TKIP AP and GTK rekey enforced by AP"""
 262     ssid = "test-wpa-psk"
 263     passphrase = 'qwertyuiop'
 264     params = hostapd.wpa_params(ssid=ssid, passphrase=passphrase)
 265     params['wpa_group_rekey'] = '1'
 266     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 267     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 268     ev = dev[0].wait_event(["WPA: Group rekeying completed"], timeout=2)
 269     if ev is None:
 270         raise Exception("GTK rekey timed out")
 271     hwsim_utils.test_connectivity(dev[0], hapd)
 272
 273 def test_ap_wpa2_gmk_rekey(dev, apdev):
 274     """WPA2-PSK AP and GMK and GTK rekey enforced by AP"""
 275     ssid = "test-wpa2-psk"
 276     passphrase = 'qwertyuiop'
 277     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 278     params['wpa_group_rekey'] = '1'
 279     params['wpa_gmk_rekey'] = '2'
 280     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 281     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 282     for i in range(0, 3):
 283         ev = dev[0].wait_event(["WPA: Group rekeying completed"], timeout=2)
 284         if ev is None:
 285             raise Exception("GTK rekey timed out")
 286     hwsim_utils.test_connectivity(dev[0], hapd)
 287
 288 def test_ap_wpa2_strict_rekey(dev, apdev):
 289     """WPA2-PSK AP and strict GTK rekey enforced by AP"""
 290     ssid = "test-wpa2-psk"
 291     passphrase = 'qwertyuiop'
 292     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 293     params['wpa_strict_rekey'] = '1'
 294     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 295     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 296     dev[1].connect(ssid, psk=passphrase, scan_freq="2412")
 297     dev[1].request("DISCONNECT")
 298     ev = dev[0].wait_event(["WPA: Group rekeying completed"], timeout=2)
 299     if ev is None:
 300         raise Exception("GTK rekey timed out")
 301     hwsim_utils.test_connectivity(dev[0], hapd)
 302
 303 def test_ap_wpa2_bridge_fdb(dev, apdev):
 304     """Bridge FDB entry removal"""
 305     try:
 306         ssid = "test-wpa2-psk"
 307         passphrase = "12345678"
 308         params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 309         params['bridge'] = 'ap-br0'
 310         hostapd.add_ap(apdev[0]['ifname'], params)
 311         subprocess.call(['sudo', 'brctl', 'setfd', 'ap-br0', '0'])
 312         subprocess.call(['sudo', 'ip', 'link', 'set', 'dev', 'ap-br0', 'up'])
 313         dev[0].connect(ssid, psk=passphrase, scan_freq="2412",
 314                        bssid=apdev[0]['bssid'])
 315         dev[1].connect(ssid, psk=passphrase, scan_freq="2412",
 316                        bssid=apdev[0]['bssid'])
 317         addr0 = dev[0].p2p_interface_addr()
 318         hwsim_utils.test_connectivity_sta(dev[0], dev[1])
 319         cmd = subprocess.Popen(['brctl', 'showmacs', 'ap-br0'],
 320                                stdout=subprocess.PIPE)
 321         macs1 = cmd.stdout.read()
 322         dev[0].request("DISCONNECT")
 323         dev[1].request("DISCONNECT")
 324         time.sleep(1)
 325         cmd = subprocess.Popen(['brctl', 'showmacs', 'ap-br0'],
 326                                stdout=subprocess.PIPE)
 327         macs2 = cmd.stdout.read()
 328
 329         addr1 = dev[1].p2p_interface_addr()
 330         if addr0 not in macs1 or addr1 not in macs1:
 331             raise Exception("Bridge FDB entry missing")
 332         if addr0 in macs2 or addr1 in macs2:
 333             raise Exception("Bridge FDB entry was not removed")
 334     finally:
 335         subprocess.call(['sudo', 'ip', 'link', 'set', 'dev', 'ap-br0', 'down'])
 336         subprocess.call(['sudo', 'brctl', 'delbr', 'ap-br0'])
 337
 338 def test_ap_wpa2_already_in_bridge(dev, apdev):
 339     """hostapd behavior with interface already in bridge"""
 340     ifname = apdev[0]['ifname']
 341     br_ifname = 'ext-ap-br0'
 342     try:
 343         ssid = "test-wpa2-psk"
 344         passphrase = "12345678"
 345         subprocess.call(['brctl', 'addbr', br_ifname])
 346         subprocess.call(['brctl', 'setfd', br_ifname, '0'])
 347         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'up'])
 348         subprocess.call(['iw', ifname, 'set', 'type', '__ap'])
 349         subprocess.call(['brctl', 'addif', br_ifname, ifname])
 350         params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 351         hapd = hostapd.add_ap(ifname, params)
 352         if hapd.get_driver_status_field('brname') != br_ifname:
 353             raise Exception("Bridge name not identified correctly")
 354         dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 355     finally:
 356         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'down'])
 357         subprocess.call(['brctl', 'delif', br_ifname, ifname])
 358         subprocess.call(['iw', ifname, 'set', 'type', 'station'])
 359         subprocess.call(['brctl', 'delbr', br_ifname])
 360
 361 def test_ap_wpa2_in_different_bridge(dev, apdev):
 362     """hostapd behavior with interface in different bridge"""
 363     ifname = apdev[0]['ifname']
 364     br_ifname = 'ext-ap-br0'
 365     try:
 366         ssid = "test-wpa2-psk"
 367         passphrase = "12345678"
 368         subprocess.call(['brctl', 'addbr', br_ifname])
 369         subprocess.call(['brctl', 'setfd', br_ifname, '0'])
 370         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'up'])
 371         subprocess.call(['iw', ifname, 'set', 'type', '__ap'])
 372         subprocess.call(['brctl', 'addif', br_ifname, ifname])
 373         time.sleep(0.5)
 374         params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 375         params['bridge'] = 'ap-br0'
 376         hapd = hostapd.add_ap(ifname, params)
 377         subprocess.call(['brctl', 'setfd', 'ap-br0', '0'])
 378         subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'up'])
 379         brname = hapd.get_driver_status_field('brname')
 380         if brname != 'ap-br0':
 381             raise Exception("Incorrect bridge: " + brname)
 382         dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 383         hwsim_utils.test_connectivity_iface(dev[0], hapd, "ap-br0")
 384         if hapd.get_driver_status_field("added_bridge") != "1":
 385             raise Exception("Unexpected added_bridge value")
 386         if hapd.get_driver_status_field("added_if_into_bridge") != "1":
 387             raise Exception("Unexpected added_if_into_bridge value")
 388         dev[0].request("DISCONNECT")
 389         hapd.disable()
 390     finally:
 391         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'down'])
 392         subprocess.call(['brctl', 'delif', br_ifname, ifname],
 393                         stderr=open('/dev/null', 'w'))
 394         subprocess.call(['brctl', 'delbr', br_ifname])
 395
 396 def test_ap_wpa2_ext_add_to_bridge(dev, apdev):
 397     """hostapd behavior with interface added to bridge externally"""
 398     ifname = apdev[0]['ifname']
 399     br_ifname = 'ext-ap-br0'
 400     try:
 401         ssid = "test-wpa2-psk"
 402         passphrase = "12345678"
 403         params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 404         hapd = hostapd.add_ap(ifname, params)
 405
 406         subprocess.call(['brctl', 'addbr', br_ifname])
 407         subprocess.call(['brctl', 'setfd', br_ifname, '0'])
 408         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'up'])
 409         subprocess.call(['brctl', 'addif', br_ifname, ifname])
 410         dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 411         if hapd.get_driver_status_field('brname') != br_ifname:
 412             raise Exception("Bridge name not identified correctly")
 413     finally:
 414         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'down'])
 415         subprocess.call(['brctl', 'delif', br_ifname, ifname])
 416         subprocess.call(['brctl', 'delbr', br_ifname])
 417
 418 def test_ap_wpa2_psk_ext(dev, apdev):
 419     """WPA2-PSK AP using external EAPOL I/O"""
 420     bssid = apdev[0]['bssid']
 421     ssid = "test-wpa2-psk"
 422     passphrase = 'qwertyuiop'
 423     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
 424     params = hostapd.wpa2_params(ssid=ssid)
 425     params['wpa_psk'] = psk
 426     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 427     hapd.request("SET ext_eapol_frame_io 1")
 428     dev[0].request("SET ext_eapol_frame_io 1")
 429     dev[0].connect(ssid, psk=passphrase, scan_freq="2412", wait_connect=False)
 430     addr = dev[0].p2p_interface_addr()
 431     while True:
 432         ev = hapd.wait_event(["EAPOL-TX", "AP-STA-CONNECTED"], timeout=15)
 433         if ev is None:
 434             raise Exception("Timeout on EAPOL-TX from hostapd")
 435         if "AP-STA-CONNECTED" in ev:
 436             dev[0].wait_connected(timeout=15)
 437             break
 438         res = dev[0].request("EAPOL_RX " + bssid + " " + ev.split(' ')[2])
 439         if "OK" not in res:
 440             raise Exception("EAPOL_RX to wpa_supplicant failed")
 441         ev = dev[0].wait_event(["EAPOL-TX", "CTRL-EVENT-CONNECTED"], timeout=15)
 442         if ev is None:
 443             raise Exception("Timeout on EAPOL-TX from wpa_supplicant")
 444         if "CTRL-EVENT-CONNECTED" in ev:
 445             break
 446         res = hapd.request("EAPOL_RX " + addr + " " + ev.split(' ')[2])
 447         if "OK" not in res:
 448             raise Exception("EAPOL_RX to hostapd failed")
 449
 450 def parse_eapol(data):
 451     (version, type, length) = struct.unpack('>BBH', data[0:4])
 452     payload = data[4:]
 453     if length > len(payload):
 454         raise Exception("Invalid EAPOL length")
 455     if length < len(payload):
 456         payload = payload[0:length]
 457     eapol = {}
 458     eapol['version'] = version
 459     eapol['type'] = type
 460     eapol['length'] = length
 461     eapol['payload'] = payload
 462     if type == 3:
 463         # EAPOL-Key
 464         (eapol['descr_type'],) = struct.unpack('B', payload[0:1])
 465         payload = payload[1:]
 466         if eapol['descr_type'] == 2 or eapol['descr_type'] == 254:
 467             # RSN EAPOL-Key
 468             (key_info, key_len) = struct.unpack('>HH', payload[0:4])
 469             eapol['rsn_key_info'] = key_info
 470             eapol['rsn_key_len'] = key_len
 471             eapol['rsn_replay_counter'] = payload[4:12]
 472             eapol['rsn_key_nonce'] = payload[12:44]
 473             eapol['rsn_key_iv'] = payload[44:60]
 474             eapol['rsn_key_rsc'] = payload[60:68]
 475             eapol['rsn_key_id'] = payload[68:76]
 476             eapol['rsn_key_mic'] = payload[76:92]
 477             payload = payload[92:]
 478             (eapol['rsn_key_data_len'],) = struct.unpack('>H', payload[0:2])
 479             payload = payload[2:]
 480             eapol['rsn_key_data'] = payload
 481     return eapol
 482
 483 def build_eapol(msg):
 484     data = struct.pack(">BBH", msg['version'], msg['type'], msg['length'])
 485     if msg['type'] == 3:
 486         data += struct.pack('>BHH', msg['descr_type'], msg['rsn_key_info'],
 487                             msg['rsn_key_len'])
 488         data += msg['rsn_replay_counter']
 489         data += msg['rsn_key_nonce']
 490         data += msg['rsn_key_iv']
 491         data += msg['rsn_key_rsc']
 492         data += msg['rsn_key_id']
 493         data += msg['rsn_key_mic']
 494         data += struct.pack('>H', msg['rsn_key_data_len'])
 495         data += msg['rsn_key_data']
 496     else:
 497         data += msg['payload']
 498     return data
 499
 500 def sha1_prf(key, label, data, outlen):
 501     res = ''
 502     counter = 0
 503     while outlen > 0:
 504         m = hmac.new(key, label, hashlib.sha1)
 505         m.update(struct.pack('B', 0))
 506         m.update(data)
 507         m.update(struct.pack('B', counter))
 508         counter += 1
 509         hash = m.digest()
 510         if outlen > len(hash):
 511             res += hash
 512             outlen -= len(hash)
 513         else:
 514             res += hash[0:outlen]
 515             outlen = 0
 516     return res
 517
 518 def pmk_to_ptk(pmk, addr1, addr2, nonce1, nonce2):
 519     if addr1 < addr2:
 520         data = binascii.unhexlify(addr1.replace(':','')) + binascii.unhexlify(addr2.replace(':',''))
 521     else:
 522         data = binascii.unhexlify(addr2.replace(':','')) + binascii.unhexlify(addr1.replace(':',''))
 523     if nonce1 < nonce2:
 524         data += nonce1 + nonce2
 525     else:
 526         data += nonce2 + nonce1
 527     label = "Pairwise key expansion"
 528     ptk = sha1_prf(pmk, label, data, 48)
 529     kck = ptk[0:16]
 530     kek = ptk[16:32]
 531     return (ptk, kck, kek)
 532
 533 def eapol_key_mic(kck, msg):
 534     msg['rsn_key_mic'] = binascii.unhexlify('00000000000000000000000000000000')
 535     data = build_eapol(msg)
 536     m = hmac.new(kck, data, hashlib.sha1)
 537     msg['rsn_key_mic'] = m.digest()[0:16]
 538
 539 def rsn_eapol_key_set(msg, key_info, key_len, nonce, data):
 540     msg['rsn_key_info'] = key_info
 541     msg['rsn_key_len'] = key_len
 542     if nonce:
 543         msg['rsn_key_nonce'] = nonce
 544     else:
 545         msg['rsn_key_nonce'] = binascii.unhexlify('0000000000000000000000000000000000000000000000000000000000000000')
 546     if data:
 547         msg['rsn_key_data_len'] = len(data)
 548         msg['rsn_key_data'] = data
 549         msg['length'] = 95 + len(data)
 550     else:
 551         msg['rsn_key_data_len'] = 0
 552         msg['rsn_key_data'] = ''
 553         msg['length'] = 95
 554
 555 def recv_eapol(hapd):
 556     ev = hapd.wait_event(["EAPOL-TX"], timeout=15)
 557     if ev is None:
 558         raise Exception("Timeout on EAPOL-TX from hostapd")
 559     eapol = binascii.unhexlify(ev.split(' ')[2])
 560     return parse_eapol(eapol)
 561
 562 def send_eapol(hapd, addr, data):
 563     res = hapd.request("EAPOL_RX " + addr + " " + binascii.hexlify(data))
 564     if "OK" not in res:
 565         raise Exception("EAPOL_RX to hostapd failed")
 566
 567 def reply_eapol(info, hapd, addr, msg, key_info, nonce, data, kck):
 568     logger.info("Send EAPOL-Key msg " + info)
 569     rsn_eapol_key_set(msg, key_info, 0, nonce, data)
 570     eapol_key_mic(kck, msg)
 571     send_eapol(hapd, addr, build_eapol(msg))
 572
 573 def hapd_connected(hapd):
 574     ev = hapd.wait_event(["AP-STA-CONNECTED"], timeout=15)
 575     if ev is None:
 576         raise Exception("Timeout on AP-STA-CONNECTED from hostapd")
 577
 578 def eapol_test(apdev, dev, wpa2=True):
 579     bssid = apdev['bssid']
 580     if wpa2:
 581         ssid = "test-wpa2-psk"
 582     else:
 583         ssid = "test-wpa-psk"
 584     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
 585     pmk = binascii.unhexlify(psk)
 586     if wpa2:
 587         params = hostapd.wpa2_params(ssid=ssid)
 588     else:
 589         params = hostapd.wpa_params(ssid=ssid)
 590     params['wpa_psk'] = psk
 591     hapd = hostapd.add_ap(apdev['ifname'], params)
 592     hapd.request("SET ext_eapol_frame_io 1")
 593     dev.request("SET ext_eapol_frame_io 1")
 594     dev.connect(ssid, psk="not used", scan_freq="2412", wait_connect=False)
 595     addr = dev.p2p_interface_addr()
 596     if wpa2:
 597         rsne = binascii.unhexlify('30140100000fac040100000fac040100000fac020000')
 598     else:
 599         rsne = binascii.unhexlify('dd160050f20101000050f20201000050f20201000050f202')
 600     snonce = binascii.unhexlify('1111111111111111111111111111111111111111111111111111111111111111')
 601     return (bssid,ssid,hapd,snonce,pmk,addr,rsne)
 602
 603 def test_ap_wpa2_psk_ext_eapol(dev, apdev):
 604     """WPA2-PSK AP using external EAPOL supplicant"""
 605     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 606
 607     msg = recv_eapol(hapd)
 608     anonce = msg['rsn_key_nonce']
 609     logger.info("Replay same data back")
 610     send_eapol(hapd, addr, build_eapol(msg))
 611
 612     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 613
 614     logger.info("Truncated Key Data in EAPOL-Key msg 2/4")
 615     rsn_eapol_key_set(msg, 0x0101, 0, snonce, rsne)
 616     msg['length'] = 95 + 22 - 1
 617     send_eapol(hapd, addr, build_eapol(msg))
 618
 619     reply_eapol("2/4", hapd, addr, msg, 0x010a, snonce, rsne, kck)
 620
 621     msg = recv_eapol(hapd)
 622     if anonce != msg['rsn_key_nonce']:
 623         raise Exception("ANonce changed")
 624     logger.info("Replay same data back")
 625     send_eapol(hapd, addr, build_eapol(msg))
 626
 627     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 628     hapd_connected(hapd)
 629
 630 def test_ap_wpa2_psk_ext_eapol_retry1(dev, apdev):
 631     """WPA2 4-way handshake with EAPOL-Key 1/4 retransmitted"""
 632     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 633
 634     msg1 = recv_eapol(hapd)
 635     anonce = msg1['rsn_key_nonce']
 636
 637     msg2 = recv_eapol(hapd)
 638     if anonce != msg2['rsn_key_nonce']:
 639         raise Exception("ANonce changed")
 640
 641     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 642
 643     logger.info("Send EAPOL-Key msg 2/4")
 644     msg = msg2
 645     rsn_eapol_key_set(msg, 0x010a, 0, snonce, rsne)
 646     eapol_key_mic(kck, msg)
 647     send_eapol(hapd, addr, build_eapol(msg))
 648
 649     msg = recv_eapol(hapd)
 650     if anonce != msg['rsn_key_nonce']:
 651         raise Exception("ANonce changed")
 652
 653     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 654     hapd_connected(hapd)
 655
 656 def test_ap_wpa2_psk_ext_eapol_retry1b(dev, apdev):
 657     """WPA2 4-way handshake with EAPOL-Key 1/4 and 2/4 retransmitted"""
 658     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 659
 660     msg1 = recv_eapol(hapd)
 661     anonce = msg1['rsn_key_nonce']
 662     msg2 = recv_eapol(hapd)
 663     if anonce != msg2['rsn_key_nonce']:
 664         raise Exception("ANonce changed")
 665
 666     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 667     reply_eapol("2/4 (a)", hapd, addr, msg1, 0x010a, snonce, rsne, kck)
 668     reply_eapol("2/4 (b)", hapd, addr, msg2, 0x010a, snonce, rsne, kck)
 669
 670     msg = recv_eapol(hapd)
 671     if anonce != msg['rsn_key_nonce']:
 672         raise Exception("ANonce changed")
 673
 674     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 675     hapd_connected(hapd)
 676
 677 def test_ap_wpa2_psk_ext_eapol_retry1c(dev, apdev):
 678     """WPA2 4-way handshake with EAPOL-Key 1/4 and 2/4 retransmitted and SNonce changing"""
 679     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 680
 681     msg1 = recv_eapol(hapd)
 682     anonce = msg1['rsn_key_nonce']
 683
 684     msg2 = recv_eapol(hapd)
 685     if anonce != msg2['rsn_key_nonce']:
 686         raise Exception("ANonce changed")
 687     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 688     reply_eapol("2/4 (a)", hapd, addr, msg1, 0x010a, snonce, rsne, kck)
 689
 690     snonce2 = binascii.unhexlify('2222222222222222222222222222222222222222222222222222222222222222')
 691     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce2, anonce)
 692     reply_eapol("2/4 (b)", hapd, addr, msg2, 0x010a, snonce2, rsne, kck)
 693
 694     msg = recv_eapol(hapd)
 695     if anonce != msg['rsn_key_nonce']:
 696         raise Exception("ANonce changed")
 697     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 698     hapd_connected(hapd)
 699
 700 def test_ap_wpa2_psk_ext_eapol_retry1d(dev, apdev):
 701     """WPA2 4-way handshake with EAPOL-Key 1/4 and 2/4 retransmitted and SNonce changing and older used"""
 702     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 703
 704     msg1 = recv_eapol(hapd)
 705     anonce = msg1['rsn_key_nonce']
 706     msg2 = recv_eapol(hapd)
 707     if anonce != msg2['rsn_key_nonce']:
 708         raise Exception("ANonce changed")
 709
 710     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 711     reply_eapol("2/4 (a)", hapd, addr, msg1, 0x010a, snonce, rsne, kck)
 712
 713     snonce2 = binascii.unhexlify('2222222222222222222222222222222222222222222222222222222222222222')
 714     (ptk2, kck2, kek2) = pmk_to_ptk(pmk, addr, bssid, snonce2, anonce)
 715
 716     reply_eapol("2/4 (b)", hapd, addr, msg2, 0x010a, snonce2, rsne, kck2)
 717     msg = recv_eapol(hapd)
 718     if anonce != msg['rsn_key_nonce']:
 719         raise Exception("ANonce changed")
 720     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 721     hapd_connected(hapd)
 722
 723 def test_ap_wpa2_psk_ext_eapol_type_diff(dev, apdev):
 724     """WPA2 4-way handshake using external EAPOL supplicant"""
 725     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 726
 727     msg = recv_eapol(hapd)
 728     anonce = msg['rsn_key_nonce']
 729
 730     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 731
 732     # Incorrect descriptor type (frame dropped)
 733     msg['descr_type'] = 253
 734     rsn_eapol_key_set(msg, 0x010a, 0, snonce, rsne)
 735     eapol_key_mic(kck, msg)
 736     send_eapol(hapd, addr, build_eapol(msg))
 737
 738     # Incorrect descriptor type, but with a workaround (frame processed)
 739     msg['descr_type'] = 254
 740     rsn_eapol_key_set(msg, 0x010a, 0, snonce, rsne)
 741     eapol_key_mic(kck, msg)
 742     send_eapol(hapd, addr, build_eapol(msg))
 743
 744     msg = recv_eapol(hapd)
 745     if anonce != msg['rsn_key_nonce']:
 746         raise Exception("ANonce changed")
 747     logger.info("Replay same data back")
 748     send_eapol(hapd, addr, build_eapol(msg))
 749
 750     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 751     hapd_connected(hapd)
 752
 753 def test_ap_wpa_psk_ext_eapol(dev, apdev):
 754     """WPA2-PSK AP using external EAPOL supplicant"""
 755     (bssid,ssid,hapd,snonce,pmk,addr,wpae) = eapol_test(apdev[0], dev[0],
 756                                                         wpa2=False)
 757
 758     msg = recv_eapol(hapd)
 759     anonce = msg['rsn_key_nonce']
 760     logger.info("Replay same data back")
 761     send_eapol(hapd, addr, build_eapol(msg))
 762     logger.info("Too short data")
 763     send_eapol(hapd, addr, build_eapol(msg)[0:98])
 764
 765     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 766     msg['descr_type'] = 2
 767     reply_eapol("2/4(invalid type)", hapd, addr, msg, 0x010a, snonce, wpae, kck)
 768     msg['descr_type'] = 254
 769     reply_eapol("2/4", hapd, addr, msg, 0x010a, snonce, wpae, kck)
 770
 771     msg = recv_eapol(hapd)
 772     if anonce != msg['rsn_key_nonce']:
 773         raise Exception("ANonce changed")
 774     logger.info("Replay same data back")
 775     send_eapol(hapd, addr, build_eapol(msg))
 776
 777     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 778     hapd_connected(hapd)
 779
 780 def test_ap_wpa2_psk_ext_eapol_key_info(dev, apdev):
 781     """WPA2-PSK 4-way handshake with strange key info values"""
 782     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 783
 784     msg = recv_eapol(hapd)
 785     anonce = msg['rsn_key_nonce']
 786
 787     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 788     rsn_eapol_key_set(msg, 0x0000, 0, snonce, rsne)
 789     send_eapol(hapd, addr, build_eapol(msg))
 790     rsn_eapol_key_set(msg, 0xffff, 0, snonce, rsne)
 791     send_eapol(hapd, addr, build_eapol(msg))
 792     # SMK M1
 793     rsn_eapol_key_set(msg, 0x2802, 0, snonce, rsne)
 794     send_eapol(hapd, addr, build_eapol(msg))
 795     # SMK M3
 796     rsn_eapol_key_set(msg, 0x2002, 0, snonce, rsne)
 797     send_eapol(hapd, addr, build_eapol(msg))
 798     # Request
 799     rsn_eapol_key_set(msg, 0x0902, 0, snonce, rsne)
 800     send_eapol(hapd, addr, build_eapol(msg))
 801     # Request
 802     rsn_eapol_key_set(msg, 0x0902, 0, snonce, rsne)
 803     tmp_kck = binascii.unhexlify('00000000000000000000000000000000')
 804     eapol_key_mic(tmp_kck, msg)
 805     send_eapol(hapd, addr, build_eapol(msg))
 806
 807     reply_eapol("2/4", hapd, addr, msg, 0x010a, snonce, rsne, kck)
 808
 809     msg = recv_eapol(hapd)
 810     if anonce != msg['rsn_key_nonce']:
 811         raise Exception("ANonce changed")
 812
 813     # Request (valic MIC)
 814     rsn_eapol_key_set(msg, 0x0902, 0, snonce, rsne)
 815     eapol_key_mic(kck, msg)
 816     send_eapol(hapd, addr, build_eapol(msg))
 817     # Request (valid MIC, replayed counter)
 818     rsn_eapol_key_set(msg, 0x0902, 0, snonce, rsne)
 819     eapol_key_mic(kck, msg)
 820     send_eapol(hapd, addr, build_eapol(msg))
 821
 822     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 823     hapd_connected(hapd)
 824
 825 def find_wpas_process(dev):
 826     ifname = dev.ifname
 827     cmd = subprocess.Popen(['ps', 'ax'], stdout=subprocess.PIPE)
 828     (data,err) = cmd.communicate()
 829     for l in data.splitlines():
 830         if "wpa_supplicant" not in l:
 831             continue
 832         if "-i" + ifname not in l:
 833             continue
 834         return int(l.strip().split(' ')[0])
 835     raise Exception("Could not find wpa_supplicant process")
 836
 837 def read_process_memory(pid, key=None):
 838     buf = bytes()
 839     with open('/proc/%d/maps' % pid, 'r') as maps, \
 840          open('/proc/%d/mem' % pid, 'r') as mem:
 841         for l in maps.readlines():
 842             m = re.match(r'([0-9a-f]+)-([0-9a-f]+) ([-r][-w][-x][-p])', l)
 843             if not m:
 844                 continue
 845             start = int(m.group(1), 16)
 846             end = int(m.group(2), 16)
 847             perm = m.group(3)
 848             if start > 0xffffffffffff:
 849                 continue
 850             if end < start:
 851                 continue
 852             if not perm.startswith('rw'):
 853                 continue
 854             mem.seek(start)
 855             data = mem.read(end - start)
 856             buf += data
 857             if key and key in data:
 858                 logger.info("Key found in " + l)
 859     return buf
 860
 861 def verify_not_present(buf, key, fname, keyname):
 862     pos = buf.find(key)
 863     if pos < 0:
 864         return
 865
 866     prefix = 2048 if pos > 2048 else pos
 867     with open(fname + keyname, 'w') as f:
 868         f.write(buf[pos - prefix:pos + 2048])
 869     raise Exception(keyname + " found after disassociation")
 870
 871 def get_key_locations(buf, key, keyname):
 872     count = 0
 873     pos = 0
 874     while True:
 875         pos = buf.find(key, pos)
 876         if pos < 0:
 877             break
 878         logger.info("Found %s at %d" % (keyname, pos))
 879         count += 1
 880         pos += len(key)
 881     return count
 882
 883 def test_wpa2_psk_key_lifetime_in_memory(dev, apdev, params):
 884     """WPA2-PSK and PSK/PTK lifetime in memory"""
 885     ssid = "test-wpa2-psk"
 886     passphrase = 'qwertyuiop'
 887     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
 888     pmk = binascii.unhexlify(psk)
 889     p = hostapd.wpa2_params(ssid=ssid)
 890     p['wpa_psk'] = psk
 891     hapd = hostapd.add_ap(apdev[0]['ifname'], p)
 892
 893     pid = find_wpas_process(dev[0])
 894
 895     id = dev[0].connect(ssid, raw_psk=psk, scan_freq="2412",
 896                         only_add_network=True)
 897
 898     logger.info("Checking keys in memory after network profile configuration")
 899     buf = read_process_memory(pid, pmk)
 900     get_key_locations(buf, pmk, "PMK")
 901
 902     dev[0].request("REMOVE_NETWORK all")
 903     logger.info("Checking keys in memory after network profile removal")
 904     buf = read_process_memory(pid, pmk)
 905     get_key_locations(buf, pmk, "PMK")
 906
 907     id = dev[0].connect(ssid, psk=passphrase, scan_freq="2412",
 908                         only_add_network=True)
 909
 910     logger.info("Checking keys in memory before connection")
 911     buf = read_process_memory(pid, pmk)
 912     get_key_locations(buf, pmk, "PMK")
 913
 914     dev[0].connect_network(id, timeout=20)
 915     time.sleep(1)
 916
 917     buf = read_process_memory(pid, pmk)
 918
 919     dev[0].request("DISCONNECT")
 920     dev[0].wait_disconnected()
 921
 922     dev[0].relog()
 923     ptk = None
 924     gtk = None
 925     with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
 926         for l in f.readlines():
 927             if "WPA: PTK - hexdump" in l:
 928                 val = l.strip().split(':')[3].replace(' ', '')
 929                 ptk = binascii.unhexlify(val)
 930             if "WPA: Group Key - hexdump" in l:
 931                 val = l.strip().split(':')[3].replace(' ', '')
 932                 gtk = binascii.unhexlify(val)
 933     if not pmk or not ptk or not gtk:
 934         raise Exception("Could not find keys from debug log")
 935     if len(gtk) != 16:
 936         raise Exception("Unexpected GTK length")
 937
 938     kck = ptk[0:16]
 939     kek = ptk[16:32]
 940     tk = ptk[32:48]
 941
 942     logger.info("Checking keys in memory while associated")
 943     get_key_locations(buf, pmk, "PMK")
 944     if pmk not in buf:
 945         raise HwsimSkip("PMK not found while associated")
 946     if kck not in buf:
 947         raise Exception("KCK not found while associated")
 948     if kek not in buf:
 949         raise Exception("KEK not found while associated")
 950     if tk in buf:
 951         raise Exception("TK found from memory")
 952     if gtk in buf:
 953         raise Exception("GTK found from memory")
 954
 955     logger.info("Checking keys in memory after disassociation")
 956     buf = read_process_memory(pid, pmk)
 957     get_key_locations(buf, pmk, "PMK")
 958
 959     # Note: PMK/PSK is still present in network configuration
 960
 961     fname = os.path.join(params['logdir'],
 962                          'wpa2_psk_key_lifetime_in_memory.memctx-')
 963     verify_not_present(buf, kck, fname, "KCK")
 964     verify_not_present(buf, kek, fname, "KEK")
 965     verify_not_present(buf, tk, fname, "TK")
 966     verify_not_present(buf, gtk, fname, "GTK")
 967
 968     dev[0].request("REMOVE_NETWORK all")
 969
 970     logger.info("Checking keys in memory after network profile removal")
 971     buf = read_process_memory(pid, pmk)
 972     get_key_locations(buf, pmk, "PMK")
 973
 974     verify_not_present(buf, pmk, fname, "PMK")
 975     verify_not_present(buf, kck, fname, "KCK")
 976     verify_not_present(buf, kek, fname, "KEK")
 977     verify_not_present(buf, tk, fname, "TK")
 978     verify_not_present(buf, gtk, fname, "GTK")
 979
 980 def test_ap_wpa2_psk_wep(dev, apdev):
 981     """WPA2-PSK AP and WEP enabled"""
 982     ssid = "test-wpa2-psk"
 983     passphrase = 'qwertyuiop'
 984     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 985     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 986     try:
 987         hapd.set('wep_key0', '"hello"')
 988         raise Exception("WEP key accepted to WPA2 network")
 989     except Exception:
 990         pass
 991
 992 def test_ap_wpa2_psk_wpas_in_bridge(dev, apdev):
 993     """WPA2-PSK AP and wpas interface in a bridge"""
 994     br_ifname='sta-br0'
 995     ifname='wlan5'
 996     try:
 997         _test_ap_wpa2_psk_wpas_in_bridge(dev, apdev)
 998     finally:
 999         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'down'])
1000         subprocess.call(['brctl', 'delif', br_ifname, ifname])
1001         subprocess.call(['brctl', 'delbr', br_ifname])
1002         subprocess.call(['iw', ifname, 'set', '4addr', 'on'])
1003
1004 def _test_ap_wpa2_psk_wpas_in_bridge(dev, apdev):
1005     ssid = "test-wpa2-psk"
1006     passphrase = 'qwertyuiop'
1007     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
1008     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
1009
1010     br_ifname='sta-br0'
1011     ifname='wlan5'
1012     wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
1013     subprocess.call(['brctl', 'addbr', br_ifname])
1014     subprocess.call(['brctl', 'setfd', br_ifname, '0'])
1015     subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'up'])
1016     subprocess.call(['iw', ifname, 'set', '4addr', 'on'])
1017     subprocess.check_call(['brctl', 'addif', br_ifname, ifname])
1018     wpas.interface_add(ifname, br_ifname=br_ifname)
1019
1020     wpas.connect(ssid, psk=passphrase, scan_freq="2412")