tests/hwsim/test_ap_vht.py

   1 # Test cases for VHT operations with hostapd
   2 # Copyright (c) 2014, Qualcomm Atheros, Inc.
   3 # Copyright (c) 2013, Intel Corporation
   4 #
   5 # This software may be distributed under the terms of the BSD license.
   6 # See README for more details.
   7
   8 import logging
   9 logger = logging.getLogger()
  10 import os
  11 import subprocess, time
  12
  13 import hwsim_utils
  14 import hostapd
  15 from utils import HwsimSkip
  16 from test_dfs import wait_dfs_event
  17 from test_ap_csa import csa_supported
  18 from test_ap_ht import clear_scan_cache
  19
  20 def vht_supported():
  21     cmd = subprocess.Popen(["iw", "reg", "get"], stdout=subprocess.PIPE)
  22     reg = cmd.stdout.read()
  23     if "@ 80)" in reg or "@ 160)" in reg:
  24         return True
  25     return False
  26
  27 def test_ap_vht80(dev, apdev):
  28     """VHT with 80 MHz channel width"""
  29     try:
  30         hapd = None
  31         params = { "ssid": "vht",
  32                    "country_code": "FI",
  33                    "hw_mode": "a",
  34                    "channel": "36",
  35                    "ht_capab": "[HT40+]",
  36                    "ieee80211n": "1",
  37                    "ieee80211ac": "1",
  38                    "vht_oper_chwidth": "1",
  39                    "vht_oper_centr_freq_seg0_idx": "42" }
  40         hapd = hostapd.add_ap(apdev[0], params)
  41         bssid = apdev[0]['bssid']
  42
  43         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
  44         hwsim_utils.test_connectivity(dev[0], hapd)
  45         sig = dev[0].request("SIGNAL_POLL").splitlines()
  46         if "FREQUENCY=5180" not in sig:
  47             raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig))
  48         if "WIDTH=80 MHz" not in sig:
  49             raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig))
  50         est = dev[0].get_bss(bssid)['est_throughput']
  51         if est != "390001":
  52             raise Exception("Unexpected BSS est_throughput: " + est)
  53     except Exception, e:
  54         if isinstance(e, Exception) and str(e) == "AP startup failed":
  55             if not vht_supported():
  56                 raise HwsimSkip("80 MHz channel not supported in regulatory information")
  57         raise
  58     finally:
  59         dev[0].request("DISCONNECT")
  60         if hapd:
  61             hapd.request("DISABLE")
  62         subprocess.call(['iw', 'reg', 'set', '00'])
  63         dev[0].flush_scan_cache()
  64
  65 def vht80_test(apdev, dev, channel, ht_capab):
  66     clear_scan_cache(apdev['ifname'])
  67     try:
  68         hapd = None
  69         params = { "ssid": "vht",
  70                    "country_code": "FI",
  71                    "hw_mode": "a",
  72                    "channel": str(channel),
  73                    "ht_capab": ht_capab,
  74                    "ieee80211n": "1",
  75                    "ieee80211ac": "1",
  76                    "vht_oper_chwidth": "1",
  77                    "vht_oper_centr_freq_seg0_idx": "42" }
  78         hapd = hostapd.add_ap(apdev['ifname'], params)
  79         bssid = apdev['bssid']
  80
  81         dev.connect("vht", key_mgmt="NONE", scan_freq=str(5000 + 5 * channel))
  82         hwsim_utils.test_connectivity(dev, hapd)
  83     except Exception, e:
  84         if isinstance(e, Exception) and str(e) == "AP startup failed":
  85             if not vht_supported():
  86                 raise HwsimSkip("80 MHz channel not supported in regulatory information")
  87         raise
  88     finally:
  89         dev.request("DISCONNECT")
  90         if hapd:
  91             hapd.request("DISABLE")
  92         subprocess.call(['iw', 'reg', 'set', '00'])
  93         dev.flush_scan_cache()
  94
  95 def test_ap_vht80b(dev, apdev):
  96     """VHT with 80 MHz channel width (HT40- channel 40)"""
  97     vht80_test(apdev[0], dev[0], 40, "[HT40-]")
  98
  99 def test_ap_vht80c(dev, apdev):
 100     """VHT with 80 MHz channel width (HT40+ channel 44)"""
 101     vht80_test(apdev[0], dev[0], 44, "[HT40+]")
 102
 103 def test_ap_vht80d(dev, apdev):
 104     """VHT with 80 MHz channel width (HT40- channel 48)"""
 105     vht80_test(apdev[0], dev[0], 48, "[HT40-]")
 106
 107 def test_ap_vht80_params(dev, apdev):
 108     """VHT with 80 MHz channel width and number of optional features enabled"""
 109     try:
 110         hapd = None
 111         params = { "ssid": "vht",
 112                    "country_code": "FI",
 113                    "hw_mode": "a",
 114                    "channel": "36",
 115                    "ht_capab": "[HT40+][SHORT-GI-40][DSS_CCK-40]",
 116                    "ieee80211n": "1",
 117                    "ieee80211ac": "1",
 118                    "vht_oper_chwidth": "1",
 119                    "vht_capab": "[MAX-MPDU-11454][RXLDPC][SHORT-GI-80][TX-STBC-2BY1][RX-STBC-1][MAX-A-MPDU-LEN-EXP0]",
 120                    "vht_oper_centr_freq_seg0_idx": "42",
 121                    "require_vht": "1" }
 122         hapd = hostapd.add_ap(apdev[0], params)
 123
 124         dev[1].connect("vht", key_mgmt="NONE", scan_freq="5180",
 125                        disable_vht="1", wait_connect=False)
 126         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
 127         ev = dev[1].wait_event(["CTRL-EVENT-ASSOC-REJECT"])
 128         if ev is None:
 129             raise Exception("Association rejection timed out")
 130         if "status_code=104" not in ev:
 131             raise Exception("Unexpected rejection status code")
 132         dev[1].request("DISCONNECT")
 133         hwsim_utils.test_connectivity(dev[0], hapd)
 134     except Exception, e:
 135         if isinstance(e, Exception) and str(e) == "AP startup failed":
 136             if not vht_supported():
 137                 raise HwsimSkip("80 MHz channel not supported in regulatory information")
 138         raise
 139     finally:
 140         dev[0].request("DISCONNECT")
 141         dev[1].request("DISCONNECT")
 142         if hapd:
 143             hapd.request("DISABLE")
 144         subprocess.call(['iw', 'reg', 'set', '00'])
 145         dev[0].flush_scan_cache()
 146         dev[1].flush_scan_cache()
 147
 148 def test_ap_vht80_invalid(dev, apdev):
 149     """VHT with invalid 80 MHz channel configuration (seg1)"""
 150     try:
 151         hapd = None
 152         params = { "ssid": "vht",
 153                    "country_code": "US",
 154                    "hw_mode": "a",
 155                    "channel": "36",
 156                    "ht_capab": "[HT40+]",
 157                    "ieee80211n": "1",
 158                    "ieee80211ac": "1",
 159                    "vht_oper_chwidth": "1",
 160                    "vht_oper_centr_freq_seg0_idx": "42",
 161                    "vht_oper_centr_freq_seg1_idx": "155",
 162                    'ieee80211d': '1',
 163                    'ieee80211h': '1' }
 164         hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
 165         # This fails due to unexpected seg1 configuration
 166         ev = hapd.wait_event(["AP-DISABLED"], timeout=5)
 167         if ev is None:
 168             raise Exception("AP-DISABLED not reported")
 169     except Exception, e:
 170         if isinstance(e, Exception) and str(e) == "AP startup failed":
 171             if not vht_supported():
 172                 raise HwsimSkip("80/160 MHz channel not supported in regulatory information")
 173         raise
 174     finally:
 175         if hapd:
 176             hapd.request("DISABLE")
 177         subprocess.call(['iw', 'reg', 'set', '00'])
 178
 179 def test_ap_vht80_invalid2(dev, apdev):
 180     """VHT with invalid 80 MHz channel configuration (seg0)"""
 181     try:
 182         hapd = None
 183         params = { "ssid": "vht",
 184                    "country_code": "US",
 185                    "hw_mode": "a",
 186                    "channel": "36",
 187                    "ht_capab": "[HT40+]",
 188                    "ieee80211n": "1",
 189                    "ieee80211ac": "1",
 190                    "vht_oper_chwidth": "1",
 191                    "vht_oper_centr_freq_seg0_idx": "46",
 192                    'ieee80211d': '1',
 193                    'ieee80211h': '1' }
 194         hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
 195         # This fails due to invalid seg0 configuration
 196         ev = hapd.wait_event(["AP-DISABLED"], timeout=5)
 197         if ev is None:
 198             raise Exception("AP-DISABLED not reported")
 199     except Exception, e:
 200         if isinstance(e, Exception) and str(e) == "AP startup failed":
 201             if not vht_supported():
 202                 raise HwsimSkip("80/160 MHz channel not supported in regulatory information")
 203         raise
 204     finally:
 205         if hapd:
 206             hapd.request("DISABLE")
 207         subprocess.call(['iw', 'reg', 'set', '00'])
 208
 209 def test_ap_vht_20(devs, apdevs):
 210     """VHT and 20 MHz channel"""
 211     dev = devs[0]
 212     ap = apdevs[0]
 213     try:
 214         hapd = None
 215         params = { "ssid": "test-vht20",
 216                    "country_code": "DE",
 217                    "hw_mode": "a",
 218                    "channel": "36",
 219                    "ieee80211n": "1",
 220                    "ieee80211ac": "1",
 221                    "ht_capab": "",
 222                    "vht_capab": "",
 223                    "vht_oper_chwidth": "0",
 224                    "vht_oper_centr_freq_seg0_idx": "0",
 225                    "supported_rates": "60 120 240 360 480 540",
 226                    "require_vht": "1",
 227                  }
 228         hapd = hostapd.add_ap(ap['ifname'], params)
 229         dev.connect("test-vht20", scan_freq="5180", key_mgmt="NONE")
 230         hwsim_utils.test_connectivity(dev, hapd)
 231     finally:
 232         dev.request("DISCONNECT")
 233         if hapd:
 234             hapd.request("DISABLE")
 235         subprocess.call(['iw', 'reg', 'set', '00'])
 236         dev.flush_scan_cache()
 237
 238 def test_ap_vht_40(devs, apdevs):
 239     """VHT and 40 MHz channel"""
 240     dev = devs[0]
 241     ap = apdevs[0]
 242     try:
 243         hapd = None
 244         params = { "ssid": "test-vht40",
 245                    "country_code": "DE",
 246                    "hw_mode": "a",
 247                    "channel": "36",
 248                    "ieee80211n": "1",
 249                    "ieee80211ac": "1",
 250                    "ht_capab": "[HT40+]",
 251                    "vht_capab": "",
 252                    "vht_oper_chwidth": "0",
 253                    "vht_oper_centr_freq_seg0_idx": "0",
 254                  }
 255         hapd = hostapd.add_ap(ap['ifname'], params)
 256         dev.connect("test-vht40", scan_freq="5180", key_mgmt="NONE")
 257         hwsim_utils.test_connectivity(dev, hapd)
 258     finally:
 259         dev.request("DISCONNECT")
 260         if hapd:
 261             hapd.request("DISABLE")
 262         subprocess.call(['iw', 'reg', 'set', '00'])
 263         dev.flush_scan_cache()
 264
 265 def test_ap_vht_capab_not_supported(dev, apdev):
 266     """VHT configuration with driver not supporting all vht_capab entries"""
 267     try:
 268         params = { "ssid": "vht",
 269                    "country_code": "FI",
 270                    "hw_mode": "a",
 271                    "channel": "36",
 272                    "ht_capab": "[HT40+][SHORT-GI-40][DSS_CCK-40]",
 273                    "ieee80211n": "1",
 274                    "ieee80211ac": "1",
 275                    "vht_oper_chwidth": "1",
 276                    "vht_capab": "[MAX-MPDU-7991][MAX-MPDU-11454][VHT160][VHT160-80PLUS80][RXLDPC][SHORT-GI-80][SHORT-GI-160][TX-STBC-2BY1][RX-STBC-1][RX-STBC-12][RX-STBC-123][RX-STBC-1234][SU-BEAMFORMER][SU-BEAMFORMEE][BF-ANTENNA-2][BF-ANTENNA-3][BF-ANTENNA-4][SOUNDING-DIMENSION-2][SOUNDING-DIMENSION-3][SOUNDING-DIMENSION-4][MU-BEAMFORMER][VHT-TXOP-PS][HTC-VHT][MAX-A-MPDU-LEN-EXP0][MAX-A-MPDU-LEN-EXP7][VHT-LINK-ADAPT2][VHT-LINK-ADAPT3][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN]",
 277                    "vht_oper_centr_freq_seg0_idx": "42",
 278                    "require_vht": "1" }
 279         hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
 280         ev = hapd.wait_event(["AP-DISABLED"], timeout=5)
 281         if ev is None:
 282             raise Exception("Startup failure not reported")
 283         for i in range(1, 7):
 284             if "OK" not in hapd.request("SET vht_capab [MAX-A-MPDU-LEN-EXP%d]" % i):
 285                 raise Exception("Unexpected SET failure")
 286     finally:
 287         subprocess.call(['iw', 'reg', 'set', '00'])
 288
 289 def test_ap_vht160(dev, apdev):
 290     """VHT with 160 MHz channel width"""
 291     try:
 292         hapd = None
 293         hapd2 = None
 294         params = { "ssid": "vht",
 295                    "country_code": "FI",
 296                    "hw_mode": "a",
 297                    "channel": "36",
 298                    "ht_capab": "[HT40+]",
 299                    "ieee80211n": "1",
 300                    "ieee80211ac": "1",
 301                    "vht_oper_chwidth": "2",
 302                    "vht_oper_centr_freq_seg0_idx": "50",
 303                    'ieee80211d': '1',
 304                    'ieee80211h': '1' }
 305         hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
 306
 307         ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
 308         if "DFS-CAC-START" not in ev:
 309             raise Exception("Unexpected DFS event")
 310
 311         state = hapd.get_status_field("state")
 312         if state != "DFS":
 313             if state == "DISABLED" and not os.path.exists("dfs"):
 314                 # Not all systems have recent enough CRDA version and
 315                 # wireless-regdb changes to support 160 MHz and DFS. For now,
 316                 # do not report failures for this test case.
 317                 raise HwsimSkip("CRDA or wireless-regdb did not support 160 MHz")
 318             raise Exception("Unexpected interface state: " + state)
 319
 320         params = { "ssid": "vht2",
 321                    "country_code": "FI",
 322                    "hw_mode": "a",
 323                    "channel": "104",
 324                    "ht_capab": "[HT40-]",
 325                    "ieee80211n": "1",
 326                    "ieee80211ac": "1",
 327                    "vht_oper_chwidth": "2",
 328                    "vht_oper_centr_freq_seg0_idx": "114",
 329                    'ieee80211d': '1',
 330                    'ieee80211h': '1' }
 331         hapd2 = hostapd.add_ap(apdev[1], params, wait_enabled=False)
 332
 333         ev = wait_dfs_event(hapd2, "DFS-CAC-START", 5)
 334         if "DFS-CAC-START" not in ev:
 335             raise Exception("Unexpected DFS event(2)")
 336
 337         state = hapd2.get_status_field("state")
 338         if state != "DFS":
 339             raise Exception("Unexpected interface state(2): " + state)
 340
 341         logger.info("Waiting for CAC to complete")
 342
 343         ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
 344         if "success=1" not in ev:
 345             raise Exception("CAC failed")
 346         if "freq=5180" not in ev:
 347             raise Exception("Unexpected DFS freq result")
 348
 349         ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
 350         if not ev:
 351             raise Exception("AP setup timed out")
 352
 353         state = hapd.get_status_field("state")
 354         if state != "ENABLED":
 355             raise Exception("Unexpected interface state")
 356
 357         ev = wait_dfs_event(hapd2, "DFS-CAC-COMPLETED", 70)
 358         if "success=1" not in ev:
 359             raise Exception("CAC failed(2)")
 360         if "freq=5520" not in ev:
 361             raise Exception("Unexpected DFS freq result(2)")
 362
 363         ev = hapd2.wait_event(["AP-ENABLED"], timeout=5)
 364         if not ev:
 365             raise Exception("AP setup timed out(2)")
 366
 367         state = hapd2.get_status_field("state")
 368         if state != "ENABLED":
 369             raise Exception("Unexpected interface state(2)")
 370
 371         freq = hapd2.get_status_field("freq")
 372         if freq != "5520":
 373             raise Exception("Unexpected frequency(2)")
 374
 375         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
 376         hwsim_utils.test_connectivity(dev[0], hapd)
 377         sig = dev[0].request("SIGNAL_POLL").splitlines()
 378         if "FREQUENCY=5180" not in sig:
 379             raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig))
 380         if "WIDTH=160 MHz" not in sig:
 381             raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig))
 382         dev[1].connect("vht2", key_mgmt="NONE", scan_freq="5520")
 383         hwsim_utils.test_connectivity(dev[1], hapd2)
 384         sig = dev[1].request("SIGNAL_POLL").splitlines()
 385         if "FREQUENCY=5520" not in sig:
 386             raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig))
 387         if "WIDTH=160 MHz" not in sig:
 388             raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig))
 389     except Exception, e:
 390         if isinstance(e, Exception) and str(e) == "AP startup failed":
 391             if not vht_supported():
 392                 raise HwsimSkip("80/160 MHz channel not supported in regulatory information")
 393         raise
 394     finally:
 395         dev[0].request("DISCONNECT")
 396         dev[1].request("DISCONNECT")
 397         if hapd:
 398             hapd.request("DISABLE")
 399         if hapd2:
 400             hapd2.request("DISABLE")
 401         subprocess.call(['iw', 'reg', 'set', '00'])
 402         dev[0].flush_scan_cache()
 403         dev[1].flush_scan_cache()
 404
 405 def test_ap_vht160_no_dfs(dev, apdev):
 406     """VHT with 160 MHz channel width and no DFS"""
 407     try:
 408         hapd = None
 409         params = { "ssid": "vht",
 410                    "country_code": "ZA",
 411                    "hw_mode": "a",
 412                    "channel": "104",
 413                    "ht_capab": "[HT40-]",
 414                    "ieee80211n": "1",
 415                    "ieee80211ac": "1",
 416                    "vht_oper_chwidth": "2",
 417                    "vht_oper_centr_freq_seg0_idx": "114",
 418                    'ieee80211d': '1',
 419                    'ieee80211h': '1' }
 420         hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
 421         ev = hapd.wait_event(["AP-ENABLED"], timeout=2)
 422         if not ev:
 423             cmd = subprocess.Popen(["iw", "reg", "get"], stdout=subprocess.PIPE)
 424             reg = cmd.stdout.readlines()
 425             for r in reg:
 426                 if "5490" in r and "DFS" in r:
 427                     raise HwsimSkip("ZA regulatory rule did not have DFS requirement removed")
 428             raise Exception("AP setup timed out")
 429
 430         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5520")
 431         hwsim_utils.test_connectivity(dev[0], hapd)
 432         sig = dev[0].request("SIGNAL_POLL").splitlines()
 433         if "FREQUENCY=5520" not in sig:
 434             raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig))
 435         if "WIDTH=160 MHz" not in sig:
 436             raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig))
 437     except Exception, e:
 438         if isinstance(e, Exception) and str(e) == "AP startup failed":
 439             if not vht_supported():
 440                 raise HwsimSkip("80/160 MHz channel not supported in regulatory information")
 441         raise
 442     finally:
 443         dev[0].request("DISCONNECT")
 444         if hapd:
 445             hapd.request("DISABLE")
 446         subprocess.call(['iw', 'reg', 'set', '00'])
 447         dev[0].flush_scan_cache()
 448
 449 def test_ap_vht80plus80(dev, apdev):
 450     """VHT with 80+80 MHz channel width"""
 451     try:
 452         hapd = None
 453         hapd2 = None
 454         params = { "ssid": "vht",
 455                    "country_code": "US",
 456                    "hw_mode": "a",
 457                    "channel": "52",
 458                    "ht_capab": "[HT40+]",
 459                    "ieee80211n": "1",
 460                    "ieee80211ac": "1",
 461                    "vht_oper_chwidth": "3",
 462                    "vht_oper_centr_freq_seg0_idx": "58",
 463                    "vht_oper_centr_freq_seg1_idx": "155",
 464                    'ieee80211d': '1',
 465                    'ieee80211h': '1' }
 466         hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
 467         # This will actually fail since DFS on 80+80 is not yet supported
 468         ev = hapd.wait_event(["AP-DISABLED"], timeout=5)
 469         # ignore result to avoid breaking the test once 80+80 DFS gets enabled
 470
 471         params = { "ssid": "vht2",
 472                    "country_code": "US",
 473                    "hw_mode": "a",
 474                    "channel": "36",
 475                    "ht_capab": "[HT40+]",
 476                    "ieee80211n": "1",
 477                    "ieee80211ac": "1",
 478                    "vht_oper_chwidth": "3",
 479                    "vht_oper_centr_freq_seg0_idx": "42",
 480                    "vht_oper_centr_freq_seg1_idx": "155" }
 481         hapd2 = hostapd.add_ap(apdev[1], params, wait_enabled=False)
 482
 483         ev = hapd2.wait_event(["AP-ENABLED", "AP-DISABLED"], timeout=5)
 484         if not ev:
 485             raise Exception("AP setup timed out(2)")
 486         if "AP-DISABLED" in ev:
 487             # Assume this failed due to missing regulatory update for now
 488             raise HwsimSkip("80+80 MHz channel not supported in regulatory information")
 489
 490         state = hapd2.get_status_field("state")
 491         if state != "ENABLED":
 492             raise Exception("Unexpected interface state(2)")
 493
 494         dev[1].connect("vht2", key_mgmt="NONE", scan_freq="5180")
 495         hwsim_utils.test_connectivity(dev[1], hapd2)
 496         sig = dev[1].request("SIGNAL_POLL").splitlines()
 497         if "FREQUENCY=5180" not in sig:
 498             raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig))
 499         if "WIDTH=80+80 MHz" not in sig:
 500             raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig))
 501         if "CENTER_FRQ1=5210" not in sig:
 502             raise Exception("Unexpected SIGNAL_POLL value(3): " + str(sig))
 503         if "CENTER_FRQ2=5775" not in sig:
 504             raise Exception("Unexpected SIGNAL_POLL value(4): " + str(sig))
 505     except Exception, e:
 506         if isinstance(e, Exception) and str(e) == "AP startup failed":
 507             if not vht_supported():
 508                 raise HwsimSkip("80/160 MHz channel not supported in regulatory information")
 509         raise
 510     finally:
 511         dev[0].request("DISCONNECT")
 512         dev[1].request("DISCONNECT")
 513         if hapd:
 514             hapd.request("DISABLE")
 515         if hapd2:
 516             hapd2.request("DISABLE")
 517         subprocess.call(['iw', 'reg', 'set', '00'])
 518         dev[0].flush_scan_cache()
 519         dev[1].flush_scan_cache()
 520
 521 def test_ap_vht80plus80_invalid(dev, apdev):
 522     """VHT with invalid 80+80 MHz channel"""
 523     try:
 524         hapd = None
 525         params = { "ssid": "vht",
 526                    "country_code": "US",
 527                    "hw_mode": "a",
 528                    "channel": "36",
 529                    "ht_capab": "[HT40+]",
 530                    "ieee80211n": "1",
 531                    "ieee80211ac": "1",
 532                    "vht_oper_chwidth": "3",
 533                    "vht_oper_centr_freq_seg0_idx": "42",
 534                    "vht_oper_centr_freq_seg1_idx": "0",
 535                    'ieee80211d': '1',
 536                    'ieee80211h': '1' }
 537         hapd = hostapd.add_ap(apdev[0], params, wait_enabled=False)
 538         # This fails due to missing(invalid) seg1 configuration
 539         ev = hapd.wait_event(["AP-DISABLED"], timeout=5)
 540         if ev is None:
 541             raise Exception("AP-DISABLED not reported")
 542     except Exception, e:
 543         if isinstance(e, Exception) and str(e) == "AP startup failed":
 544             if not vht_supported():
 545                 raise HwsimSkip("80/160 MHz channel not supported in regulatory information")
 546         raise
 547     finally:
 548         if hapd:
 549             hapd.request("DISABLE")
 550         subprocess.call(['iw', 'reg', 'set', '00'])
 551
 552 def test_ap_vht80_csa(dev, apdev):
 553     """VHT with 80 MHz channel width and CSA"""
 554     csa_supported(dev[0])
 555     try:
 556         hapd = None
 557         params = { "ssid": "vht",
 558                    "country_code": "US",
 559                    "hw_mode": "a",
 560                    "channel": "149",
 561                    "ht_capab": "[HT40+]",
 562                    "ieee80211n": "1",
 563                    "ieee80211ac": "1",
 564                    "vht_oper_chwidth": "1",
 565                    "vht_oper_centr_freq_seg0_idx": "155" }
 566         hapd = hostapd.add_ap(apdev[0], params)
 567
 568         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5745")
 569         hwsim_utils.test_connectivity(dev[0], hapd)
 570
 571         hapd.request("CHAN_SWITCH 5 5180 ht vht blocktx center_freq1=5210 sec_channel_offset=1 bandwidth=80")
 572         ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
 573         if ev is None:
 574             raise Exception("CSA finished event timed out")
 575         if "freq=5180" not in ev:
 576             raise Exception("Unexpected channel in CSA finished event")
 577         time.sleep(0.5)
 578         hwsim_utils.test_connectivity(dev[0], hapd)
 579
 580         hapd.request("CHAN_SWITCH 5 5745")
 581         ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
 582         if ev is None:
 583             raise Exception("CSA finished event timed out")
 584         if "freq=5745" not in ev:
 585             raise Exception("Unexpected channel in CSA finished event")
 586         time.sleep(0.5)
 587         hwsim_utils.test_connectivity(dev[0], hapd)
 588
 589         # This CSA to same channel will fail in kernel, so use this only for
 590         # extra code coverage.
 591         hapd.request("CHAN_SWITCH 5 5745")
 592         hapd.wait_event(["AP-CSA-FINISHED"], timeout=1)
 593     except Exception, e:
 594         if isinstance(e, Exception) and str(e) == "AP startup failed":
 595             if not vht_supported():
 596                 raise HwsimSkip("80 MHz channel not supported in regulatory information")
 597         raise
 598     finally:
 599         dev[0].request("DISCONNECT")
 600         if hapd:
 601             hapd.request("DISABLE")
 602         subprocess.call(['iw', 'reg', 'set', '00'])
 603         dev[0].flush_scan_cache()
 604
 605 def test_ap_vht_on_24ghz(dev, apdev):
 606     """Subset of VHT features on 2.4 GHz"""
 607     hapd = None
 608     params = { "ssid": "test-vht-2g",
 609                "hw_mode": "g",
 610                "channel": "1",
 611                "ieee80211n": "1",
 612                "vendor_vht": "1",
 613                "vht_capab": "[MAX-MPDU-11454]",
 614                "vht_oper_chwidth": "0",
 615                "vht_oper_centr_freq_seg0_idx": "1"
 616     }
 617     hapd = hostapd.add_ap(apdev[0], params)
 618     try:
 619         if "OK" not in dev[0].request("VENDOR_ELEM_ADD 13 dd1300904c0400bf0c3240820feaff0000eaff0000"):
 620             raise Exception("Failed to add vendor element")
 621         dev[0].connect("test-vht-2g", scan_freq="2412", key_mgmt="NONE")
 622         hwsim_utils.test_connectivity(dev[0], hapd)
 623         sta = hapd.get_sta(dev[0].own_addr())
 624         if '[VENDOR_VHT]' not in sta['flags']:
 625             raise Exception("No VENDOR_VHT STA flag")
 626
 627         dev[1].connect("test-vht-2g", scan_freq="2412", key_mgmt="NONE")
 628         sta = hapd.get_sta(dev[1].own_addr())
 629         if '[VENDOR_VHT]' in sta['flags']:
 630             raise Exception("Unexpected VENDOR_VHT STA flag")
 631     finally:
 632         dev[0].request("VENDOR_ELEM_REMOVE 13 *")
 633
 634 def test_prefer_vht40(dev, apdev):
 635     """Preference on VHT40 over HT40"""
 636     try:
 637         hapd2 = None
 638
 639         params = { "ssid": "test",
 640                    "country_code": "FI",
 641                    "hw_mode": "a",
 642                    "channel": "36",
 643                    "ieee80211n": "1",
 644                    "ht_capab": "[HT40+]" }
 645         hapd = hostapd.add_ap(apdev[0], params)
 646         bssid = apdev[0]['bssid']
 647
 648         params = { "ssid": "test",
 649                    "country_code": "FI",
 650                    "hw_mode": "a",
 651                    "channel": "36",
 652                    "ieee80211n": "1",
 653                    "ieee80211ac": "1",
 654                    "ht_capab": "[HT40+]",
 655                    "vht_capab": "",
 656                    "vht_oper_chwidth": "0",
 657                    "vht_oper_centr_freq_seg0_idx": "0",
 658                  }
 659         hapd2 = hostapd.add_ap(apdev[1], params)
 660         bssid2 = apdev[1]['bssid']
 661
 662         dev[0].scan_for_bss(bssid, freq=5180)
 663         dev[0].scan_for_bss(bssid2, freq=5180)
 664         dev[0].connect("test", scan_freq="5180", key_mgmt="NONE")
 665         if dev[0].get_status_field('bssid') != bssid2:
 666             raise Exception("Unexpected BSS selected")
 667
 668         est = dev[0].get_bss(bssid)['est_throughput']
 669         if est != "135000":
 670             raise Exception("Unexpected BSS0 est_throughput: " + est)
 671
 672         est = dev[0].get_bss(bssid2)['est_throughput']
 673         if est != "135001":
 674             raise Exception("Unexpected BSS1 est_throughput: " + est)
 675     finally:
 676         dev[0].request("DISCONNECT")
 677         if hapd2:
 678             hapd2.request("DISABLE")
 679         subprocess.call(['iw', 'reg', 'set', '00'])
 680         dev[0].flush_scan_cache()
 681
 682 def test_ap_vht80_pwr_constraint(dev, apdev):
 683     """VHT with 80 MHz channel width and local power constraint"""
 684     hapd = None
 685     try:
 686         params = { "ssid": "vht",
 687                    "country_code": "FI",
 688                    "hw_mode": "a",
 689                    "channel": "36",
 690                    "ht_capab": "[HT40+]",
 691                    "ieee80211d": "1",
 692                    "local_pwr_constraint": "3",
 693                    "ieee80211n": "1",
 694                    "ieee80211ac": "1",
 695                    "vht_oper_chwidth": "1",
 696                    "vht_oper_centr_freq_seg0_idx": "42" }
 697         hapd = hostapd.add_ap(apdev[0], params)
 698
 699         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
 700     except Exception, e:
 701         if isinstance(e, Exception) and str(e) == "AP startup failed":
 702             if not vht_supported():
 703                 raise HwsimSkip("80 MHz channel not supported in regulatory information")
 704         raise
 705     finally:
 706         dev[0].request("DISCONNECT")
 707         if hapd:
 708             hapd.request("DISABLE")
 709         subprocess.call(['iw', 'reg', 'set', '00'])
 710         dev[0].flush_scan_cache()