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 import hwsim_utils
  20
  21 def check_mib(dev, vals):
  22     mib = dev.get_mib()
  23     for v in vals:
  24         if mib[v[0]] != v[1]:
  25             raise Exception("Unexpected {} = {} (expected {})".format(v[0], mib[v[0]], v[1]))
  26
  27 def test_ap_wpa2_psk(dev, apdev):
  28     """WPA2-PSK AP with PSK instead of passphrase"""
  29     ssid = "test-wpa2-psk"
  30     passphrase = 'qwertyuiop'
  31     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
  32     params = hostapd.wpa2_params(ssid=ssid)
  33     params['wpa_psk'] = psk
  34     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  35     key_mgmt = hapd.get_config()['key_mgmt']
  36     if key_mgmt.split(' ')[0] != "WPA-PSK":
  37         raise Exception("Unexpected GET_CONFIG(key_mgmt): " + key_mgmt)
  38     dev[0].connect(ssid, raw_psk=psk, scan_freq="2412")
  39     dev[1].connect(ssid, psk=passphrase, scan_freq="2412")
  40
  41     sig = dev[0].request("SIGNAL_POLL").splitlines()
  42     pkt = dev[0].request("PKTCNT_POLL").splitlines()
  43     if "FREQUENCY=2412" not in sig:
  44         raise Exception("Unexpected SIGNAL_POLL value: " + str(sig))
  45     if "TXBAD=0" not in pkt:
  46         raise Exception("Unexpected TXBAD value: " + str(pkt))
  47
  48 def test_ap_wpa2_psk_file(dev, apdev):
  49     """WPA2-PSK AP with PSK from a file"""
  50     ssid = "test-wpa2-psk"
  51     passphrase = 'qwertyuiop'
  52     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
  53     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
  54     params['wpa_psk_file'] = 'hostapd.wpa_psk'
  55     hostapd.add_ap(apdev[0]['ifname'], params)
  56     dev[1].connect(ssid, psk="very secret", scan_freq="2412", wait_connect=False)
  57     dev[2].connect(ssid, raw_psk=psk, scan_freq="2412")
  58     dev[2].request("REMOVE_NETWORK all")
  59     dev[0].connect(ssid, psk="very secret", scan_freq="2412")
  60     dev[0].request("REMOVE_NETWORK all")
  61     dev[2].connect(ssid, psk="another passphrase for all STAs", scan_freq="2412")
  62     dev[0].connect(ssid, psk="another passphrase for all STAs", scan_freq="2412")
  63     ev = dev[1].wait_event(["WPA: 4-Way Handshake failed"], timeout=10)
  64     if ev is None:
  65         raise Exception("Timed out while waiting for failure report")
  66     dev[1].request("REMOVE_NETWORK all")
  67
  68 def test_ap_wpa2_ptk_rekey(dev, apdev):
  69     """WPA2-PSK AP and PTK rekey enforced by station"""
  70     ssid = "test-wpa2-psk"
  71     passphrase = 'qwertyuiop'
  72     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
  73     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  74     dev[0].connect(ssid, psk=passphrase, wpa_ptk_rekey="1", scan_freq="2412")
  75     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
  76     if ev is None:
  77         raise Exception("PTK rekey timed out")
  78     hwsim_utils.test_connectivity(dev[0], hapd)
  79
  80 def test_ap_wpa2_ptk_rekey_ap(dev, apdev):
  81     """WPA2-PSK AP and PTK rekey enforced by AP"""
  82     ssid = "test-wpa2-psk"
  83     passphrase = 'qwertyuiop'
  84     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
  85     params['wpa_ptk_rekey'] = '2'
  86     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  87     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
  88     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
  89     if ev is None:
  90         raise Exception("PTK rekey timed out")
  91     hwsim_utils.test_connectivity(dev[0], hapd)
  92
  93 def test_ap_wpa2_sha256_ptk_rekey(dev, apdev):
  94     """WPA2-PSK/SHA256 AKM AP and PTK rekey enforced by station"""
  95     ssid = "test-wpa2-psk"
  96     passphrase = 'qwertyuiop'
  97     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
  98     params["wpa_key_mgmt"] = "WPA-PSK-SHA256"
  99     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 100     dev[0].connect(ssid, psk=passphrase, key_mgmt="WPA-PSK-SHA256",
 101                    wpa_ptk_rekey="1", scan_freq="2412")
 102     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
 103     if ev is None:
 104         raise Exception("PTK rekey timed out")
 105     hwsim_utils.test_connectivity(dev[0], hapd)
 106     check_mib(dev[0], [ ("dot11RSNAAuthenticationSuiteRequested", "00-0f-ac-6"),
 107                         ("dot11RSNAAuthenticationSuiteSelected", "00-0f-ac-6") ])
 108
 109 def test_ap_wpa2_sha256_ptk_rekey_ap(dev, apdev):
 110     """WPA2-PSK/SHA256 AKM AP and PTK rekey enforced by AP"""
 111     ssid = "test-wpa2-psk"
 112     passphrase = 'qwertyuiop'
 113     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 114     params["wpa_key_mgmt"] = "WPA-PSK-SHA256"
 115     params['wpa_ptk_rekey'] = '2'
 116     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 117     dev[0].connect(ssid, psk=passphrase, key_mgmt="WPA-PSK-SHA256",
 118                    scan_freq="2412")
 119     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
 120     if ev is None:
 121         raise Exception("PTK rekey timed out")
 122     hwsim_utils.test_connectivity(dev[0], hapd)
 123     check_mib(dev[0], [ ("dot11RSNAAuthenticationSuiteRequested", "00-0f-ac-6"),
 124                         ("dot11RSNAAuthenticationSuiteSelected", "00-0f-ac-6") ])
 125
 126 def test_ap_wpa_ptk_rekey(dev, apdev):
 127     """WPA-PSK/TKIP AP and PTK rekey enforced by station"""
 128     ssid = "test-wpa-psk"
 129     passphrase = 'qwertyuiop'
 130     params = hostapd.wpa_params(ssid=ssid, passphrase=passphrase)
 131     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 132     dev[0].connect(ssid, psk=passphrase, wpa_ptk_rekey="1", scan_freq="2412")
 133     if "[WPA-PSK-TKIP]" not in dev[0].request("SCAN_RESULTS"):
 134         raise Exception("Scan results missing WPA element info")
 135     ev = dev[0].wait_event(["WPA: Key negotiation completed"])
 136     if ev is None:
 137         raise Exception("PTK rekey timed out")
 138     hwsim_utils.test_connectivity(dev[0], hapd)
 139
 140 def test_ap_wpa_ptk_rekey_ap(dev, apdev):
 141     """WPA-PSK/TKIP AP and PTK rekey enforced by AP"""
 142     ssid = "test-wpa-psk"
 143     passphrase = 'qwertyuiop'
 144     params = hostapd.wpa_params(ssid=ssid, passphrase=passphrase)
 145     params['wpa_ptk_rekey'] = '2'
 146     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 147     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 148     ev = dev[0].wait_event(["WPA: Key negotiation completed"], timeout=10)
 149     if ev is None:
 150         raise Exception("PTK rekey timed out")
 151     hwsim_utils.test_connectivity(dev[0], hapd)
 152
 153 def test_ap_wpa_ccmp(dev, apdev):
 154     """WPA-PSK/CCMP"""
 155     ssid = "test-wpa-psk"
 156     passphrase = 'qwertyuiop'
 157     params = hostapd.wpa_params(ssid=ssid, passphrase=passphrase)
 158     params['wpa_pairwise'] = "CCMP"
 159     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 160     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 161     hwsim_utils.test_connectivity(dev[0], hapd)
 162     check_mib(dev[0], [ ("dot11RSNAConfigGroupCipherSize", "128"),
 163                         ("dot11RSNAGroupCipherRequested", "00-50-f2-4"),
 164                         ("dot11RSNAPairwiseCipherRequested", "00-50-f2-4"),
 165                         ("dot11RSNAAuthenticationSuiteRequested", "00-50-f2-2"),
 166                         ("dot11RSNAGroupCipherSelected", "00-50-f2-4"),
 167                         ("dot11RSNAPairwiseCipherSelected", "00-50-f2-4"),
 168                         ("dot11RSNAAuthenticationSuiteSelected", "00-50-f2-2"),
 169                         ("dot1xSuppSuppControlledPortStatus", "Authorized") ])
 170
 171 def test_ap_wpa2_psk_file(dev, apdev):
 172     """WPA2-PSK AP with various PSK file error and success cases"""
 173     addr0 = dev[0].p2p_dev_addr()
 174     addr1 = dev[1].p2p_dev_addr()
 175     addr2 = dev[2].p2p_dev_addr()
 176     ssid = "psk"
 177     pskfile = "/tmp/ap_wpa2_psk_file_errors.psk_file"
 178     try:
 179         os.remove(pskfile)
 180     except:
 181         pass
 182
 183     params = { "ssid": ssid, "wpa": "2", "wpa_key_mgmt": "WPA-PSK",
 184                "rsn_pairwise": "CCMP", "wpa_psk_file": pskfile }
 185
 186     try:
 187         # missing PSK file
 188         hapd = hostapd.add_ap(apdev[0]['ifname'], params, no_enable=True)
 189         if "FAIL" not in hapd.request("ENABLE"):
 190             raise Exception("Unexpected ENABLE success")
 191         hapd.request("DISABLE")
 192
 193         # invalid MAC address
 194         with open(pskfile, "w") as f:
 195             f.write("\n")
 196             f.write("foo\n")
 197         if "FAIL" not in hapd.request("ENABLE"):
 198             raise Exception("Unexpected ENABLE success")
 199         hapd.request("DISABLE")
 200
 201         # no PSK on line
 202         with open(pskfile, "w") as f:
 203             f.write("00:11:22:33:44:55\n")
 204         if "FAIL" not in hapd.request("ENABLE"):
 205             raise Exception("Unexpected ENABLE success")
 206         hapd.request("DISABLE")
 207
 208         # invalid PSK
 209         with open(pskfile, "w") as f:
 210             f.write("00:11:22:33:44:55 1234567\n")
 211         if "FAIL" not in hapd.request("ENABLE"):
 212             raise Exception("Unexpected ENABLE success")
 213         hapd.request("DISABLE")
 214
 215         # valid PSK file
 216         with open(pskfile, "w") as f:
 217             f.write("00:11:22:33:44:55 12345678\n")
 218             f.write(addr0 + " 123456789\n")
 219             f.write(addr1 + " 123456789a\n")
 220             f.write(addr2 + " 0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef\n")
 221         if "FAIL" in hapd.request("ENABLE"):
 222             raise Exception("Unexpected ENABLE failure")
 223
 224         dev[0].connect(ssid, psk="123456789", scan_freq="2412")
 225         dev[1].connect(ssid, psk="123456789a", scan_freq="2412")
 226         dev[2].connect(ssid, raw_psk="0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef", scan_freq="2412")
 227
 228     finally:
 229         try:
 230             os.remove(pskfile)
 231         except:
 232             pass
 233
 234 def test_ap_wpa2_psk_wildcard_ssid(dev, apdev):
 235     """WPA2-PSK AP and wildcard SSID configuration"""
 236     ssid = "test-wpa2-psk"
 237     passphrase = 'qwertyuiop'
 238     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
 239     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 240     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 241     dev[0].connect("", bssid=apdev[0]['bssid'], psk=passphrase,
 242                    scan_freq="2412")
 243     dev[1].connect("", bssid=apdev[0]['bssid'], raw_psk=psk, scan_freq="2412")
 244
 245 def test_ap_wpa2_gtk_rekey(dev, apdev):
 246     """WPA2-PSK AP and GTK rekey enforced by AP"""
 247     ssid = "test-wpa2-psk"
 248     passphrase = 'qwertyuiop'
 249     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 250     params['wpa_group_rekey'] = '1'
 251     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 252     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 253     ev = dev[0].wait_event(["WPA: Group rekeying completed"], timeout=2)
 254     if ev is None:
 255         raise Exception("GTK rekey timed out")
 256     hwsim_utils.test_connectivity(dev[0], hapd)
 257
 258 def test_ap_wpa_gtk_rekey(dev, apdev):
 259     """WPA-PSK/TKIP AP and GTK rekey enforced by AP"""
 260     ssid = "test-wpa-psk"
 261     passphrase = 'qwertyuiop'
 262     params = hostapd.wpa_params(ssid=ssid, passphrase=passphrase)
 263     params['wpa_group_rekey'] = '1'
 264     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 265     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 266     ev = dev[0].wait_event(["WPA: Group rekeying completed"], timeout=2)
 267     if ev is None:
 268         raise Exception("GTK rekey timed out")
 269     hwsim_utils.test_connectivity(dev[0], hapd)
 270
 271 def test_ap_wpa2_gmk_rekey(dev, apdev):
 272     """WPA2-PSK AP and GMK and GTK rekey enforced by AP"""
 273     ssid = "test-wpa2-psk"
 274     passphrase = 'qwertyuiop'
 275     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 276     params['wpa_group_rekey'] = '1'
 277     params['wpa_gmk_rekey'] = '2'
 278     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 279     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 280     for i in range(0, 3):
 281         ev = dev[0].wait_event(["WPA: Group rekeying completed"], timeout=2)
 282         if ev is None:
 283             raise Exception("GTK rekey timed out")
 284     hwsim_utils.test_connectivity(dev[0], hapd)
 285
 286 def test_ap_wpa2_strict_rekey(dev, apdev):
 287     """WPA2-PSK AP and strict GTK rekey enforced by AP"""
 288     ssid = "test-wpa2-psk"
 289     passphrase = 'qwertyuiop'
 290     params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 291     params['wpa_strict_rekey'] = '1'
 292     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 293     dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 294     dev[1].connect(ssid, psk=passphrase, scan_freq="2412")
 295     dev[1].request("DISCONNECT")
 296     ev = dev[0].wait_event(["WPA: Group rekeying completed"], timeout=2)
 297     if ev is None:
 298         raise Exception("GTK rekey timed out")
 299     hwsim_utils.test_connectivity(dev[0], hapd)
 300
 301 def test_ap_wpa2_bridge_fdb(dev, apdev):
 302     """Bridge FDB entry removal"""
 303     try:
 304         ssid = "test-wpa2-psk"
 305         passphrase = "12345678"
 306         params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 307         params['bridge'] = 'ap-br0'
 308         hostapd.add_ap(apdev[0]['ifname'], params)
 309         subprocess.call(['sudo', 'brctl', 'setfd', 'ap-br0', '0'])
 310         subprocess.call(['sudo', 'ip', 'link', 'set', 'dev', 'ap-br0', 'up'])
 311         dev[0].connect(ssid, psk=passphrase, scan_freq="2412",
 312                        bssid=apdev[0]['bssid'])
 313         dev[1].connect(ssid, psk=passphrase, scan_freq="2412",
 314                        bssid=apdev[0]['bssid'])
 315         addr0 = dev[0].p2p_interface_addr()
 316         hwsim_utils.test_connectivity_sta(dev[0], dev[1])
 317         cmd = subprocess.Popen(['brctl', 'showmacs', 'ap-br0'],
 318                                stdout=subprocess.PIPE)
 319         macs1 = cmd.stdout.read()
 320         dev[0].request("DISCONNECT")
 321         dev[1].request("DISCONNECT")
 322         time.sleep(1)
 323         cmd = subprocess.Popen(['brctl', 'showmacs', 'ap-br0'],
 324                                stdout=subprocess.PIPE)
 325         macs2 = cmd.stdout.read()
 326
 327         addr1 = dev[1].p2p_interface_addr()
 328         if addr0 not in macs1 or addr1 not in macs1:
 329             raise Exception("Bridge FDB entry missing")
 330         if addr0 in macs2 or addr1 in macs2:
 331             raise Exception("Bridge FDB entry was not removed")
 332     finally:
 333         subprocess.call(['sudo', 'ip', 'link', 'set', 'dev', 'ap-br0', 'down'])
 334         subprocess.call(['sudo', 'brctl', 'delbr', 'ap-br0'])
 335
 336 def test_ap_wpa2_already_in_bridge(dev, apdev):
 337     """hostapd behavior with interface already in bridge"""
 338     ifname = apdev[0]['ifname']
 339     br_ifname = 'ext-ap-br0'
 340     try:
 341         ssid = "test-wpa2-psk"
 342         passphrase = "12345678"
 343         subprocess.call(['brctl', 'addbr', br_ifname])
 344         subprocess.call(['brctl', 'setfd', br_ifname, '0'])
 345         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'up'])
 346         subprocess.call(['iw', ifname, 'set', 'type', '__ap'])
 347         subprocess.call(['brctl', 'addif', br_ifname, ifname])
 348         params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 349         hapd = hostapd.add_ap(ifname, params)
 350         if hapd.get_driver_status_field('brname') != br_ifname:
 351             raise Exception("Bridge name not identified correctly")
 352         dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 353     finally:
 354         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'down'])
 355         subprocess.call(['brctl', 'delif', br_ifname, ifname])
 356         subprocess.call(['iw', ifname, 'set', 'type', 'station'])
 357         subprocess.call(['brctl', 'delbr', br_ifname])
 358
 359 def test_ap_wpa2_in_different_bridge(dev, apdev):
 360     """hostapd behavior with interface in different bridge"""
 361     ifname = apdev[0]['ifname']
 362     br_ifname = 'ext-ap-br0'
 363     try:
 364         ssid = "test-wpa2-psk"
 365         passphrase = "12345678"
 366         subprocess.call(['brctl', 'addbr', br_ifname])
 367         subprocess.call(['brctl', 'setfd', br_ifname, '0'])
 368         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'up'])
 369         subprocess.call(['iw', ifname, 'set', 'type', '__ap'])
 370         subprocess.call(['brctl', 'addif', br_ifname, ifname])
 371         time.sleep(0.5)
 372         params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 373         params['bridge'] = 'ap-br0'
 374         hapd = hostapd.add_ap(ifname, params)
 375         subprocess.call(['brctl', 'setfd', 'ap-br0', '0'])
 376         subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'up'])
 377         brname = hapd.get_driver_status_field('brname')
 378         if brname != 'ap-br0':
 379             raise Exception("Incorrect bridge: " + brname)
 380         dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 381         hwsim_utils.test_connectivity_iface(dev[0], hapd, "ap-br0")
 382         if hapd.get_driver_status_field("added_bridge") != "1":
 383             raise Exception("Unexpected added_bridge value")
 384         if hapd.get_driver_status_field("added_if_into_bridge") != "1":
 385             raise Exception("Unexpected added_if_into_bridge value")
 386         dev[0].request("DISCONNECT")
 387         hapd.disable()
 388     finally:
 389         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'down'])
 390         subprocess.call(['brctl', 'delif', br_ifname, ifname],
 391                         stderr=open('/dev/null', 'w'))
 392         subprocess.call(['brctl', 'delbr', br_ifname])
 393
 394 def test_ap_wpa2_ext_add_to_bridge(dev, apdev):
 395     """hostapd behavior with interface added to bridge externally"""
 396     ifname = apdev[0]['ifname']
 397     br_ifname = 'ext-ap-br0'
 398     try:
 399         ssid = "test-wpa2-psk"
 400         passphrase = "12345678"
 401         params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
 402         hapd = hostapd.add_ap(ifname, params)
 403
 404         subprocess.call(['brctl', 'addbr', br_ifname])
 405         subprocess.call(['brctl', 'setfd', br_ifname, '0'])
 406         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'up'])
 407         subprocess.call(['brctl', 'addif', br_ifname, ifname])
 408         dev[0].connect(ssid, psk=passphrase, scan_freq="2412")
 409         if hapd.get_driver_status_field('brname') != br_ifname:
 410             raise Exception("Bridge name not identified correctly")
 411     finally:
 412         subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'down'])
 413         subprocess.call(['brctl', 'delif', br_ifname, ifname])
 414         subprocess.call(['brctl', 'delbr', br_ifname])
 415
 416 def test_ap_wpa2_psk_ext(dev, apdev):
 417     """WPA2-PSK AP using external EAPOL I/O"""
 418     bssid = apdev[0]['bssid']
 419     ssid = "test-wpa2-psk"
 420     passphrase = 'qwertyuiop'
 421     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
 422     params = hostapd.wpa2_params(ssid=ssid)
 423     params['wpa_psk'] = psk
 424     hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 425     hapd.request("SET ext_eapol_frame_io 1")
 426     dev[0].request("SET ext_eapol_frame_io 1")
 427     dev[0].connect(ssid, psk=passphrase, scan_freq="2412", wait_connect=False)
 428     addr = dev[0].p2p_interface_addr()
 429     while True:
 430         ev = hapd.wait_event(["EAPOL-TX", "AP-STA-CONNECTED"], timeout=15)
 431         if ev is None:
 432             raise Exception("Timeout on EAPOL-TX from hostapd")
 433         if "AP-STA-CONNECTED" in ev:
 434             dev[0].wait_connected(timeout=15)
 435             break
 436         res = dev[0].request("EAPOL_RX " + bssid + " " + ev.split(' ')[2])
 437         if "OK" not in res:
 438             raise Exception("EAPOL_RX to wpa_supplicant failed")
 439         ev = dev[0].wait_event(["EAPOL-TX", "CTRL-EVENT-CONNECTED"], timeout=15)
 440         if ev is None:
 441             raise Exception("Timeout on EAPOL-TX from wpa_supplicant")
 442         if "CTRL-EVENT-CONNECTED" in ev:
 443             break
 444         res = hapd.request("EAPOL_RX " + addr + " " + ev.split(' ')[2])
 445         if "OK" not in res:
 446             raise Exception("EAPOL_RX to hostapd failed")
 447
 448 def parse_eapol(data):
 449     (version, type, length) = struct.unpack('>BBH', data[0:4])
 450     payload = data[4:]
 451     if length > len(payload):
 452         raise Exception("Invalid EAPOL length")
 453     if length < len(payload):
 454         payload = payload[0:length]
 455     eapol = {}
 456     eapol['version'] = version
 457     eapol['type'] = type
 458     eapol['length'] = length
 459     eapol['payload'] = payload
 460     if type == 3:
 461         # EAPOL-Key
 462         (eapol['descr_type'],) = struct.unpack('B', payload[0:1])
 463         payload = payload[1:]
 464         if eapol['descr_type'] == 2 or eapol['descr_type'] == 254:
 465             # RSN EAPOL-Key
 466             (key_info, key_len) = struct.unpack('>HH', payload[0:4])
 467             eapol['rsn_key_info'] = key_info
 468             eapol['rsn_key_len'] = key_len
 469             eapol['rsn_replay_counter'] = payload[4:12]
 470             eapol['rsn_key_nonce'] = payload[12:44]
 471             eapol['rsn_key_iv'] = payload[44:60]
 472             eapol['rsn_key_rsc'] = payload[60:68]
 473             eapol['rsn_key_id'] = payload[68:76]
 474             eapol['rsn_key_mic'] = payload[76:92]
 475             payload = payload[92:]
 476             (eapol['rsn_key_data_len'],) = struct.unpack('>H', payload[0:2])
 477             payload = payload[2:]
 478             eapol['rsn_key_data'] = payload
 479     return eapol
 480
 481 def build_eapol(msg):
 482     data = struct.pack(">BBH", msg['version'], msg['type'], msg['length'])
 483     if msg['type'] == 3:
 484         data += struct.pack('>BHH', msg['descr_type'], msg['rsn_key_info'],
 485                             msg['rsn_key_len'])
 486         data += msg['rsn_replay_counter']
 487         data += msg['rsn_key_nonce']
 488         data += msg['rsn_key_iv']
 489         data += msg['rsn_key_rsc']
 490         data += msg['rsn_key_id']
 491         data += msg['rsn_key_mic']
 492         data += struct.pack('>H', msg['rsn_key_data_len'])
 493         data += msg['rsn_key_data']
 494     else:
 495         data += msg['payload']
 496     return data
 497
 498 def sha1_prf(key, label, data, outlen):
 499     res = ''
 500     counter = 0
 501     while outlen > 0:
 502         m = hmac.new(key, label, hashlib.sha1)
 503         m.update(struct.pack('B', 0))
 504         m.update(data)
 505         m.update(struct.pack('B', counter))
 506         counter += 1
 507         hash = m.digest()
 508         if outlen > len(hash):
 509             res += hash
 510             outlen -= len(hash)
 511         else:
 512             res += hash[0:outlen]
 513             outlen = 0
 514     return res
 515
 516 def pmk_to_ptk(pmk, addr1, addr2, nonce1, nonce2):
 517     if addr1 < addr2:
 518         data = binascii.unhexlify(addr1.replace(':','')) + binascii.unhexlify(addr2.replace(':',''))
 519     else:
 520         data = binascii.unhexlify(addr2.replace(':','')) + binascii.unhexlify(addr1.replace(':',''))
 521     if nonce1 < nonce2:
 522         data += nonce1 + nonce2
 523     else:
 524         data += nonce2 + nonce1
 525     label = "Pairwise key expansion"
 526     ptk = sha1_prf(pmk, label, data, 48)
 527     kck = ptk[0:16]
 528     kek = ptk[16:32]
 529     return (ptk, kck, kek)
 530
 531 def eapol_key_mic(kck, msg):
 532     msg['rsn_key_mic'] = binascii.unhexlify('00000000000000000000000000000000')
 533     data = build_eapol(msg)
 534     m = hmac.new(kck, data, hashlib.sha1)
 535     msg['rsn_key_mic'] = m.digest()[0:16]
 536
 537 def rsn_eapol_key_set(msg, key_info, key_len, nonce, data):
 538     msg['rsn_key_info'] = key_info
 539     msg['rsn_key_len'] = key_len
 540     if nonce:
 541         msg['rsn_key_nonce'] = nonce
 542     else:
 543         msg['rsn_key_nonce'] = binascii.unhexlify('0000000000000000000000000000000000000000000000000000000000000000')
 544     if data:
 545         msg['rsn_key_data_len'] = len(data)
 546         msg['rsn_key_data'] = data
 547         msg['length'] = 95 + len(data)
 548     else:
 549         msg['rsn_key_data_len'] = 0
 550         msg['rsn_key_data'] = ''
 551         msg['length'] = 95
 552
 553 def recv_eapol(hapd):
 554     ev = hapd.wait_event(["EAPOL-TX"], timeout=15)
 555     if ev is None:
 556         raise Exception("Timeout on EAPOL-TX from hostapd")
 557     eapol = binascii.unhexlify(ev.split(' ')[2])
 558     return parse_eapol(eapol)
 559
 560 def send_eapol(hapd, addr, data):
 561     res = hapd.request("EAPOL_RX " + addr + " " + binascii.hexlify(data))
 562     if "OK" not in res:
 563         raise Exception("EAPOL_RX to hostapd failed")
 564
 565 def reply_eapol(info, hapd, addr, msg, key_info, nonce, data, kck):
 566     logger.info("Send EAPOL-Key msg " + info)
 567     rsn_eapol_key_set(msg, key_info, 0, nonce, data)
 568     eapol_key_mic(kck, msg)
 569     send_eapol(hapd, addr, build_eapol(msg))
 570
 571 def hapd_connected(hapd):
 572     ev = hapd.wait_event(["AP-STA-CONNECTED"], timeout=15)
 573     if ev is None:
 574         raise Exception("Timeout on AP-STA-CONNECTED from hostapd")
 575
 576 def eapol_test(apdev, dev, wpa2=True):
 577     bssid = apdev['bssid']
 578     if wpa2:
 579         ssid = "test-wpa2-psk"
 580     else:
 581         ssid = "test-wpa-psk"
 582     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
 583     pmk = binascii.unhexlify(psk)
 584     if wpa2:
 585         params = hostapd.wpa2_params(ssid=ssid)
 586     else:
 587         params = hostapd.wpa_params(ssid=ssid)
 588     params['wpa_psk'] = psk
 589     hapd = hostapd.add_ap(apdev['ifname'], params)
 590     hapd.request("SET ext_eapol_frame_io 1")
 591     dev.request("SET ext_eapol_frame_io 1")
 592     dev.connect(ssid, psk="not used", scan_freq="2412", wait_connect=False)
 593     addr = dev.p2p_interface_addr()
 594     if wpa2:
 595         rsne = binascii.unhexlify('30140100000fac040100000fac040100000fac020000')
 596     else:
 597         rsne = binascii.unhexlify('dd160050f20101000050f20201000050f20201000050f202')
 598     snonce = binascii.unhexlify('1111111111111111111111111111111111111111111111111111111111111111')
 599     return (bssid,ssid,hapd,snonce,pmk,addr,rsne)
 600
 601 def test_ap_wpa2_psk_ext_eapol(dev, apdev):
 602     """WPA2-PSK AP using external EAPOL supplicant"""
 603     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 604
 605     msg = recv_eapol(hapd)
 606     anonce = msg['rsn_key_nonce']
 607     logger.info("Replay same data back")
 608     send_eapol(hapd, addr, build_eapol(msg))
 609
 610     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 611
 612     logger.info("Truncated Key Data in EAPOL-Key msg 2/4")
 613     rsn_eapol_key_set(msg, 0x0101, 0, snonce, rsne)
 614     msg['length'] = 95 + 22 - 1
 615     send_eapol(hapd, addr, build_eapol(msg))
 616
 617     reply_eapol("2/4", hapd, addr, msg, 0x010a, snonce, rsne, kck)
 618
 619     msg = recv_eapol(hapd)
 620     if anonce != msg['rsn_key_nonce']:
 621         raise Exception("ANonce changed")
 622     logger.info("Replay same data back")
 623     send_eapol(hapd, addr, build_eapol(msg))
 624
 625     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 626     hapd_connected(hapd)
 627
 628 def test_ap_wpa2_psk_ext_eapol_retry1(dev, apdev):
 629     """WPA2 4-way handshake with EAPOL-Key 1/4 retransmitted"""
 630     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 631
 632     msg1 = recv_eapol(hapd)
 633     anonce = msg1['rsn_key_nonce']
 634
 635     msg2 = recv_eapol(hapd)
 636     if anonce != msg2['rsn_key_nonce']:
 637         raise Exception("ANonce changed")
 638
 639     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 640
 641     logger.info("Send EAPOL-Key msg 2/4")
 642     msg = msg2
 643     rsn_eapol_key_set(msg, 0x010a, 0, snonce, rsne)
 644     eapol_key_mic(kck, msg)
 645     send_eapol(hapd, addr, build_eapol(msg))
 646
 647     msg = recv_eapol(hapd)
 648     if anonce != msg['rsn_key_nonce']:
 649         raise Exception("ANonce changed")
 650
 651     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 652     hapd_connected(hapd)
 653
 654 def test_ap_wpa2_psk_ext_eapol_retry1b(dev, apdev):
 655     """WPA2 4-way handshake with EAPOL-Key 1/4 and 2/4 retransmitted"""
 656     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 657
 658     msg1 = recv_eapol(hapd)
 659     anonce = msg1['rsn_key_nonce']
 660     msg2 = recv_eapol(hapd)
 661     if anonce != msg2['rsn_key_nonce']:
 662         raise Exception("ANonce changed")
 663
 664     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 665     reply_eapol("2/4 (a)", hapd, addr, msg1, 0x010a, snonce, rsne, kck)
 666     reply_eapol("2/4 (b)", hapd, addr, msg2, 0x010a, snonce, rsne, kck)
 667
 668     msg = recv_eapol(hapd)
 669     if anonce != msg['rsn_key_nonce']:
 670         raise Exception("ANonce changed")
 671
 672     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 673     hapd_connected(hapd)
 674
 675 def test_ap_wpa2_psk_ext_eapol_retry1c(dev, apdev):
 676     """WPA2 4-way handshake with EAPOL-Key 1/4 and 2/4 retransmitted and SNonce changing"""
 677     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 678
 679     msg1 = recv_eapol(hapd)
 680     anonce = msg1['rsn_key_nonce']
 681
 682     msg2 = recv_eapol(hapd)
 683     if anonce != msg2['rsn_key_nonce']:
 684         raise Exception("ANonce changed")
 685     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 686     reply_eapol("2/4 (a)", hapd, addr, msg1, 0x010a, snonce, rsne, kck)
 687
 688     snonce2 = binascii.unhexlify('2222222222222222222222222222222222222222222222222222222222222222')
 689     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce2, anonce)
 690     reply_eapol("2/4 (b)", hapd, addr, msg2, 0x010a, snonce2, rsne, kck)
 691
 692     msg = recv_eapol(hapd)
 693     if anonce != msg['rsn_key_nonce']:
 694         raise Exception("ANonce changed")
 695     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 696     hapd_connected(hapd)
 697
 698 def test_ap_wpa2_psk_ext_eapol_retry1d(dev, apdev):
 699     """WPA2 4-way handshake with EAPOL-Key 1/4 and 2/4 retransmitted and SNonce changing and older used"""
 700     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 701
 702     msg1 = recv_eapol(hapd)
 703     anonce = msg1['rsn_key_nonce']
 704     msg2 = recv_eapol(hapd)
 705     if anonce != msg2['rsn_key_nonce']:
 706         raise Exception("ANonce changed")
 707
 708     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 709     reply_eapol("2/4 (a)", hapd, addr, msg1, 0x010a, snonce, rsne, kck)
 710
 711     snonce2 = binascii.unhexlify('2222222222222222222222222222222222222222222222222222222222222222')
 712     (ptk2, kck2, kek2) = pmk_to_ptk(pmk, addr, bssid, snonce2, anonce)
 713
 714     reply_eapol("2/4 (b)", hapd, addr, msg2, 0x010a, snonce2, rsne, kck2)
 715     msg = recv_eapol(hapd)
 716     if anonce != msg['rsn_key_nonce']:
 717         raise Exception("ANonce changed")
 718     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 719     hapd_connected(hapd)
 720
 721 def test_ap_wpa2_psk_ext_eapol_type_diff(dev, apdev):
 722     """WPA2 4-way handshake using external EAPOL supplicant"""
 723     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 724
 725     msg = recv_eapol(hapd)
 726     anonce = msg['rsn_key_nonce']
 727
 728     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 729
 730     # Incorrect descriptor type (frame dropped)
 731     msg['descr_type'] = 253
 732     rsn_eapol_key_set(msg, 0x010a, 0, snonce, rsne)
 733     eapol_key_mic(kck, msg)
 734     send_eapol(hapd, addr, build_eapol(msg))
 735
 736     # Incorrect descriptor type, but with a workaround (frame processed)
 737     msg['descr_type'] = 254
 738     rsn_eapol_key_set(msg, 0x010a, 0, snonce, rsne)
 739     eapol_key_mic(kck, msg)
 740     send_eapol(hapd, addr, build_eapol(msg))
 741
 742     msg = recv_eapol(hapd)
 743     if anonce != msg['rsn_key_nonce']:
 744         raise Exception("ANonce changed")
 745     logger.info("Replay same data back")
 746     send_eapol(hapd, addr, build_eapol(msg))
 747
 748     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 749     hapd_connected(hapd)
 750
 751 def test_ap_wpa_psk_ext_eapol(dev, apdev):
 752     """WPA2-PSK AP using external EAPOL supplicant"""
 753     (bssid,ssid,hapd,snonce,pmk,addr,wpae) = eapol_test(apdev[0], dev[0],
 754                                                         wpa2=False)
 755
 756     msg = recv_eapol(hapd)
 757     anonce = msg['rsn_key_nonce']
 758     logger.info("Replay same data back")
 759     send_eapol(hapd, addr, build_eapol(msg))
 760     logger.info("Too short data")
 761     send_eapol(hapd, addr, build_eapol(msg)[0:98])
 762
 763     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 764     msg['descr_type'] = 2
 765     reply_eapol("2/4(invalid type)", hapd, addr, msg, 0x010a, snonce, wpae, kck)
 766     msg['descr_type'] = 254
 767     reply_eapol("2/4", hapd, addr, msg, 0x010a, snonce, wpae, kck)
 768
 769     msg = recv_eapol(hapd)
 770     if anonce != msg['rsn_key_nonce']:
 771         raise Exception("ANonce changed")
 772     logger.info("Replay same data back")
 773     send_eapol(hapd, addr, build_eapol(msg))
 774
 775     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 776     hapd_connected(hapd)
 777
 778 def test_ap_wpa2_psk_ext_eapol_key_info(dev, apdev):
 779     """WPA2-PSK 4-way handshake with strange key info values"""
 780     (bssid,ssid,hapd,snonce,pmk,addr,rsne) = eapol_test(apdev[0], dev[0])
 781
 782     msg = recv_eapol(hapd)
 783     anonce = msg['rsn_key_nonce']
 784
 785     (ptk, kck, kek) = pmk_to_ptk(pmk, addr, bssid, snonce, anonce)
 786     rsn_eapol_key_set(msg, 0x0000, 0, snonce, rsne)
 787     send_eapol(hapd, addr, build_eapol(msg))
 788     rsn_eapol_key_set(msg, 0xffff, 0, snonce, rsne)
 789     send_eapol(hapd, addr, build_eapol(msg))
 790     # SMK M1
 791     rsn_eapol_key_set(msg, 0x2802, 0, snonce, rsne)
 792     send_eapol(hapd, addr, build_eapol(msg))
 793     # SMK M3
 794     rsn_eapol_key_set(msg, 0x2002, 0, snonce, rsne)
 795     send_eapol(hapd, addr, build_eapol(msg))
 796     # Request
 797     rsn_eapol_key_set(msg, 0x0902, 0, snonce, rsne)
 798     send_eapol(hapd, addr, build_eapol(msg))
 799     # Request
 800     rsn_eapol_key_set(msg, 0x0902, 0, snonce, rsne)
 801     tmp_kck = binascii.unhexlify('00000000000000000000000000000000')
 802     eapol_key_mic(tmp_kck, msg)
 803     send_eapol(hapd, addr, build_eapol(msg))
 804
 805     reply_eapol("2/4", hapd, addr, msg, 0x010a, snonce, rsne, kck)
 806
 807     msg = recv_eapol(hapd)
 808     if anonce != msg['rsn_key_nonce']:
 809         raise Exception("ANonce changed")
 810
 811     # Request (valic MIC)
 812     rsn_eapol_key_set(msg, 0x0902, 0, snonce, rsne)
 813     eapol_key_mic(kck, msg)
 814     send_eapol(hapd, addr, build_eapol(msg))
 815     # Request (valid MIC, replayed counter)
 816     rsn_eapol_key_set(msg, 0x0902, 0, snonce, rsne)
 817     eapol_key_mic(kck, msg)
 818     send_eapol(hapd, addr, build_eapol(msg))
 819
 820     reply_eapol("4/4", hapd, addr, msg, 0x030a, None, None, kck)
 821     hapd_connected(hapd)
 822
 823 def find_wpas_process(dev):
 824     ifname = dev.ifname
 825     cmd = subprocess.Popen(['ps', 'ax'], stdout=subprocess.PIPE)
 826     (data,err) = cmd.communicate()
 827     for l in data.splitlines():
 828         if "wpa_supplicant" not in l:
 829             continue
 830         if "-i" + ifname not in l:
 831             continue
 832         return int(l.strip().split(' ')[0])
 833     raise Exception("Could not find wpa_supplicant process")
 834
 835 def read_process_memory(pid, key=None):
 836     buf = bytes()
 837     with open('/proc/%d/maps' % pid, 'r') as maps, \
 838          open('/proc/%d/mem' % pid, 'r') as mem:
 839         for l in maps.readlines():
 840             m = re.match(r'([0-9a-f]+)-([0-9a-f]+) ([-r][-w][-x][-p])', l)
 841             if not m:
 842                 continue
 843             start = int(m.group(1), 16)
 844             end = int(m.group(2), 16)
 845             perm = m.group(3)
 846             if start > 0xffffffffffff:
 847                 continue
 848             if end < start:
 849                 continue
 850             if not perm.startswith('rw'):
 851                 continue
 852             mem.seek(start)
 853             data = mem.read(end - start)
 854             buf += data
 855             if key and key in data:
 856                 logger.info("Key found in " + l)
 857     return buf
 858
 859 def verify_not_present(buf, key, fname, keyname):
 860     pos = buf.find(key)
 861     if pos < 0:
 862         return
 863
 864     prefix = 2048 if pos > 2048 else pos
 865     with open(fname + keyname, 'w') as f:
 866         f.write(buf[pos - prefix:pos + 2048])
 867     raise Exception(keyname + " found after disassociation")
 868
 869 def get_key_locations(buf, key, keyname):
 870     count = 0
 871     pos = 0
 872     while True:
 873         pos = buf.find(key, pos)
 874         if pos < 0:
 875             break
 876         logger.info("Found %s at %d" % (keyname, pos))
 877         count += 1
 878         pos += len(key)
 879     return count
 880
 881 def test_wpa2_psk_key_lifetime_in_memory(dev, apdev, params):
 882     """WPA2-PSK and PSK/PTK lifetime in memory"""
 883     ssid = "test-wpa2-psk"
 884     passphrase = 'qwertyuiop'
 885     psk = '602e323e077bc63bd80307ef4745b754b0ae0a925c2638ecd13a794b9527b9e6'
 886     pmk = binascii.unhexlify(psk)
 887     p = hostapd.wpa2_params(ssid=ssid)
 888     p['wpa_psk'] = psk
 889     hapd = hostapd.add_ap(apdev[0]['ifname'], p)
 890
 891     pid = find_wpas_process(dev[0])
 892
 893     id = dev[0].connect(ssid, raw_psk=psk, scan_freq="2412",
 894                         only_add_network=True)
 895
 896     logger.info("Checking keys in memory after network profile configuration")
 897     buf = read_process_memory(pid, pmk)
 898     get_key_locations(buf, pmk, "PMK")
 899
 900     dev[0].request("REMOVE_NETWORK all")
 901     logger.info("Checking keys in memory after network profile removal")
 902     buf = read_process_memory(pid, pmk)
 903     get_key_locations(buf, pmk, "PMK")
 904
 905     id = dev[0].connect(ssid, psk=passphrase, scan_freq="2412",
 906                         only_add_network=True)
 907
 908     logger.info("Checking keys in memory before connection")
 909     buf = read_process_memory(pid, pmk)
 910     get_key_locations(buf, pmk, "PMK")
 911
 912     dev[0].connect_network(id, timeout=20)
 913     time.sleep(0.1)
 914
 915     buf = read_process_memory(pid, pmk)
 916
 917     dev[0].request("DISCONNECT")
 918     dev[0].wait_disconnected()
 919
 920     dev[0].relog()
 921     ptk = None
 922     gtk = None
 923     with open(os.path.join(params['logdir'], 'log0'), 'r') as f:
 924         for l in f.readlines():
 925             if "WPA: PTK - hexdump" in l:
 926                 val = l.strip().split(':')[3].replace(' ', '')
 927                 ptk = binascii.unhexlify(val)
 928             if "WPA: Group Key - hexdump" in l:
 929                 val = l.strip().split(':')[3].replace(' ', '')
 930                 gtk = binascii.unhexlify(val)
 931     if not pmk or not ptk or not gtk:
 932         raise Exception("Could not find keys from debug log")
 933     if len(gtk) != 16:
 934         raise Exception("Unexpected GTK length")
 935
 936     kck = ptk[0:16]
 937     kek = ptk[16:32]
 938     tk = ptk[32:48]
 939
 940     logger.info("Checking keys in memory while associated")
 941     get_key_locations(buf, pmk, "PMK")
 942     if pmk not in buf:
 943         print("PMK not found while associated")
 944         return "skip"
 945     if kck not in buf:
 946         raise Exception("KCK not found while associated")
 947     if kek not in buf:
 948         raise Exception("KEK not found while associated")
 949     if tk in buf:
 950         raise Exception("TK found from memory")
 951     if gtk in buf:
 952         raise Exception("GTK found from memory")
 953
 954     logger.info("Checking keys in memory after disassociation")
 955     buf = read_process_memory(pid, pmk)
 956     get_key_locations(buf, pmk, "PMK")
 957
 958     # Note: PMK/PSK is still present in network configuration
 959
 960     fname = os.path.join(params['logdir'],
 961                          'wpa2_psk_key_lifetime_in_memory.memctx-')
 962     verify_not_present(buf, kck, fname, "KCK")
 963     verify_not_present(buf, kek, fname, "KEK")
 964     verify_not_present(buf, tk, fname, "TK")
 965     verify_not_present(buf, gtk, fname, "GTK")
 966
 967     dev[0].request("REMOVE_NETWORK all")
 968
 969     logger.info("Checking keys in memory after network profile removal")
 970     buf = read_process_memory(pid, pmk)
 971     get_key_locations(buf, pmk, "PMK")
 972
 973     verify_not_present(buf, pmk, fname, "PMK")
 974     verify_not_present(buf, kck, fname, "KCK")
 975     verify_not_present(buf, kek, fname, "KEK")
 976     verify_not_present(buf, tk, fname, "TK")
 977     verify_not_present(buf, gtk, fname, "GTK")