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 test_dfs import wait_dfs_event
  16 from test_ap_csa import csa_supported
  17
  18 def vht_supported():
  19     cmd = subprocess.Popen(["iw", "reg", "get"], stdout=subprocess.PIPE)
  20     reg = cmd.stdout.read()
  21     if "@ 80)" in reg or "@ 160)" in reg:
  22         return True
  23     return False
  24
  25 def test_ap_vht80(dev, apdev):
  26     """VHT with 80 MHz channel width"""
  27     try:
  28         hapd = None
  29         params = { "ssid": "vht",
  30                    "country_code": "FI",
  31                    "hw_mode": "a",
  32                    "channel": "36",
  33                    "ht_capab": "[HT40+]",
  34                    "ieee80211n": "1",
  35                    "ieee80211ac": "1",
  36                    "vht_oper_chwidth": "1",
  37                    "vht_oper_centr_freq_seg0_idx": "42" }
  38         hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  39
  40         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
  41         hwsim_utils.test_connectivity(dev[0], hapd)
  42     except Exception, e:
  43         if isinstance(e, Exception) and str(e) == "AP startup failed":
  44             if not vht_supported():
  45                 logger.info("80 MHz channel not supported in regulatory information")
  46                 return "skip"
  47         raise
  48     finally:
  49         dev[0].request("DISCONNECT")
  50         if hapd:
  51             hapd.request("DISABLE")
  52         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
  53         dev[0].flush_scan_cache()
  54
  55 def test_ap_vht80_params(dev, apdev):
  56     """VHT with 80 MHz channel width and number of optional features enabled"""
  57     try:
  58         hapd = None
  59         params = { "ssid": "vht",
  60                    "country_code": "FI",
  61                    "hw_mode": "a",
  62                    "channel": "36",
  63                    "ht_capab": "[HT40+][SHORT-GI-40][DSS_CCK-40]",
  64                    "ieee80211n": "1",
  65                    "ieee80211ac": "1",
  66                    "vht_oper_chwidth": "1",
  67                    "vht_capab": "[MAX-MPDU-11454][RXLDPC][SHORT-GI-80][TX-STBC-2BY1][RX-STBC-1][MAX-A-MPDU-LEN-EXP0]",
  68                    "vht_oper_centr_freq_seg0_idx": "42",
  69                    "require_vht": "1" }
  70         hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  71
  72         dev[1].connect("vht", key_mgmt="NONE", scan_freq="5180",
  73                        disable_vht="1", wait_connect=False)
  74         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
  75         ev = dev[1].wait_event(["CTRL-EVENT-ASSOC-REJECT"])
  76         if ev is None:
  77             raise Exception("Association rejection timed out")
  78         if "status_code=104" not in ev:
  79             raise Exception("Unexpected rejection status code")
  80         dev[1].request("DISCONNECT")
  81         hwsim_utils.test_connectivity(dev[0], hapd)
  82     except Exception, e:
  83         if isinstance(e, Exception) and str(e) == "AP startup failed":
  84             if not vht_supported():
  85                 logger.info("80 MHz channel not supported in regulatory information")
  86                 return "skip"
  87         raise
  88     finally:
  89         dev[0].request("DISCONNECT")
  90         dev[1].request("DISCONNECT")
  91         if hapd:
  92             hapd.request("DISABLE")
  93         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
  94         dev[0].flush_scan_cache()
  95         dev[1].flush_scan_cache()
  96
  97 def test_ap_vht_20(devs, apdevs):
  98     """VHT and 20 MHz channel"""
  99     dev = devs[0]
 100     ap = apdevs[0]
 101     try:
 102         hapd = None
 103         params = { "ssid": "test-vht20",
 104                    "country_code": "DE",
 105                    "hw_mode": "a",
 106                    "channel": "36",
 107                    "ieee80211n": "1",
 108                    "ieee80211ac": "1",
 109                    "ht_capab": "",
 110                    "vht_capab": "",
 111                    "vht_oper_chwidth": "0",
 112                    "vht_oper_centr_freq_seg0_idx": "0",
 113                    "supported_rates": "60 120 240 360 480 540",
 114                    "require_vht": "1",
 115                  }
 116         hapd = hostapd.add_ap(ap['ifname'], params)
 117         dev.connect("test-vht20", scan_freq="5180", key_mgmt="NONE")
 118         hwsim_utils.test_connectivity(dev, hapd)
 119     finally:
 120         dev.request("DISCONNECT")
 121         if hapd:
 122             hapd.request("DISABLE")
 123         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
 124         dev.flush_scan_cache()
 125
 126 def test_ap_vht_capab_not_supported(dev, apdev):
 127     """VHT configuration with driver not supporting all vht_capab entries"""
 128     try:
 129         params = { "ssid": "vht",
 130                    "country_code": "FI",
 131                    "hw_mode": "a",
 132                    "channel": "36",
 133                    "ht_capab": "[HT40+][SHORT-GI-40][DSS_CCK-40]",
 134                    "ieee80211n": "1",
 135                    "ieee80211ac": "1",
 136                    "vht_oper_chwidth": "1",
 137                    "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][SOUNDING-DIMENSION-2][MU-BEAMFORMER][MU-BEAMFORMEE][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]",
 138                    "vht_oper_centr_freq_seg0_idx": "42",
 139                    "require_vht": "1" }
 140         hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 141         ev = hapd.wait_event(["AP-DISABLED"], timeout=5)
 142         if ev is None:
 143             raise Exception("Startup failure not reported")
 144         for i in range(1, 7):
 145             if "OK" not in hapd.request("SET vht_capab [MAX-A-MPDU-LEN-EXP%d]" % i):
 146                 raise Exception("Unexpected SET failure")
 147     finally:
 148         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
 149
 150 def test_ap_vht160(dev, apdev):
 151     """VHT with 160 MHz channel width"""
 152     try:
 153         hapd = None
 154         hapd2 = None
 155         params = { "ssid": "vht",
 156                    "country_code": "FI",
 157                    "hw_mode": "a",
 158                    "channel": "36",
 159                    "ht_capab": "[HT40+]",
 160                    "ieee80211n": "1",
 161                    "ieee80211ac": "1",
 162                    "vht_oper_chwidth": "2",
 163                    "vht_oper_centr_freq_seg0_idx": "50",
 164                    'ieee80211d': '1',
 165                    'ieee80211h': '1' }
 166         hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 167
 168         ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
 169         if "DFS-CAC-START" not in ev:
 170             raise Exception("Unexpected DFS event")
 171
 172         state = hapd.get_status_field("state")
 173         if state != "DFS":
 174             if state == "DISABLED" and not os.path.exists("dfs"):
 175                 # Not all systems have recent enough CRDA version and
 176                 # wireless-regdb changes to support 160 MHz and DFS. For now,
 177                 # do not report failures for this test case.
 178                 return "skip"
 179             raise Exception("Unexpected interface state: " + state)
 180
 181         params = { "ssid": "vht2",
 182                    "country_code": "FI",
 183                    "hw_mode": "a",
 184                    "channel": "100",
 185                    "ht_capab": "[HT40+]",
 186                    "ieee80211n": "1",
 187                    "ieee80211ac": "1",
 188                    "vht_oper_chwidth": "2",
 189                    "vht_oper_centr_freq_seg0_idx": "114",
 190                    'ieee80211d': '1',
 191                    'ieee80211h': '1' }
 192         hapd2 = hostapd.add_ap(apdev[1]['ifname'], params, wait_enabled=False)
 193
 194         ev = wait_dfs_event(hapd2, "DFS-CAC-START", 5)
 195         if "DFS-CAC-START" not in ev:
 196             raise Exception("Unexpected DFS event(2)")
 197
 198         state = hapd2.get_status_field("state")
 199         if state != "DFS":
 200             raise Exception("Unexpected interface state(2): " + state)
 201
 202         logger.info("Waiting for CAC to complete")
 203
 204         ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
 205         if "success=1" not in ev:
 206             raise Exception("CAC failed")
 207         if "freq=5180" not in ev:
 208             raise Exception("Unexpected DFS freq result")
 209
 210         ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
 211         if not ev:
 212             raise Exception("AP setup timed out")
 213
 214         state = hapd.get_status_field("state")
 215         if state != "ENABLED":
 216             raise Exception("Unexpected interface state")
 217
 218         ev = wait_dfs_event(hapd2, "DFS-CAC-COMPLETED", 70)
 219         if "success=1" not in ev:
 220             raise Exception("CAC failed(2)")
 221         if "freq=5500" not in ev:
 222             raise Exception("Unexpected DFS freq result(2)")
 223
 224         ev = hapd2.wait_event(["AP-ENABLED"], timeout=5)
 225         if not ev:
 226             raise Exception("AP setup timed out(2)")
 227
 228         state = hapd2.get_status_field("state")
 229         if state != "ENABLED":
 230             raise Exception("Unexpected interface state(2)")
 231
 232         freq = hapd2.get_status_field("freq")
 233         if freq != "5500":
 234             raise Exception("Unexpected frequency(2)")
 235
 236         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
 237         hwsim_utils.test_connectivity(dev[0], hapd)
 238         sig = dev[0].request("SIGNAL_POLL").splitlines()
 239         if "FREQUENCY=5180" not in sig:
 240             raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig))
 241         if "WIDTH=160 MHz" not in sig:
 242             raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig))
 243         dev[1].connect("vht2", key_mgmt="NONE", scan_freq="5500")
 244         hwsim_utils.test_connectivity(dev[1], hapd2)
 245         sig = dev[1].request("SIGNAL_POLL").splitlines()
 246         if "FREQUENCY=5500" not in sig:
 247             raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig))
 248         if "WIDTH=160 MHz" not in sig:
 249             raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig))
 250     except Exception, e:
 251         if isinstance(e, Exception) and str(e) == "AP startup failed":
 252             if not vht_supported():
 253                 logger.info("80/160 MHz channel not supported in regulatory information")
 254                 return "skip"
 255         raise
 256     finally:
 257         dev[0].request("DISCONNECT")
 258         dev[1].request("DISCONNECT")
 259         if hapd:
 260             hapd.request("DISABLE")
 261         if hapd2:
 262             hapd2.request("DISABLE")
 263         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
 264         dev[0].flush_scan_cache()
 265         dev[1].flush_scan_cache()
 266
 267 def test_ap_vht80plus80(dev, apdev):
 268     """VHT with 80+80 MHz channel width"""
 269     try:
 270         hapd = None
 271         hapd2 = None
 272         params = { "ssid": "vht",
 273                    "country_code": "US",
 274                    "hw_mode": "a",
 275                    "channel": "52",
 276                    "ht_capab": "[HT40+]",
 277                    "ieee80211n": "1",
 278                    "ieee80211ac": "1",
 279                    "vht_oper_chwidth": "3",
 280                    "vht_oper_centr_freq_seg0_idx": "58",
 281                    "vht_oper_centr_freq_seg1_idx": "155",
 282                    'ieee80211d': '1',
 283                    'ieee80211h': '1' }
 284         hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 285         # This will actually fail since DFS on 80+80 is not yet supported
 286         ev = hapd.wait_event(["AP-DISABLED"], timeout=5)
 287         # ignore result to avoid breaking the test once 80+80 DFS gets enabled
 288
 289         params = { "ssid": "vht2",
 290                    "country_code": "US",
 291                    "hw_mode": "a",
 292                    "channel": "36",
 293                    "ht_capab": "[HT40+]",
 294                    "ieee80211n": "1",
 295                    "ieee80211ac": "1",
 296                    "vht_oper_chwidth": "3",
 297                    "vht_oper_centr_freq_seg0_idx": "42",
 298                    "vht_oper_centr_freq_seg1_idx": "155" }
 299         hapd2 = hostapd.add_ap(apdev[1]['ifname'], params, wait_enabled=False)
 300
 301         ev = hapd2.wait_event(["AP-ENABLED"], timeout=5)
 302         if not ev:
 303             raise Exception("AP setup timed out(2)")
 304
 305         state = hapd2.get_status_field("state")
 306         if state != "ENABLED":
 307             raise Exception("Unexpected interface state(2)")
 308
 309         dev[1].connect("vht2", key_mgmt="NONE", scan_freq="5180")
 310         hwsim_utils.test_connectivity(dev[1], hapd2)
 311         sig = dev[1].request("SIGNAL_POLL").splitlines()
 312         if "FREQUENCY=5180" not in sig:
 313             raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig))
 314         if "WIDTH=80+80 MHz" not in sig:
 315             raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig))
 316         if "CENTER_FRQ1=5210" not in sig:
 317             raise Exception("Unexpected SIGNAL_POLL value(3): " + str(sig))
 318         if "CENTER_FRQ2=5775" not in sig:
 319             raise Exception("Unexpected SIGNAL_POLL value(4): " + str(sig))
 320     except Exception, e:
 321         if isinstance(e, Exception) and str(e) == "AP startup failed":
 322             if not vht_supported():
 323                 logger.info("80/160 MHz channel not supported in regulatory information")
 324                 return "skip"
 325         raise
 326     finally:
 327         dev[0].request("DISCONNECT")
 328         dev[1].request("DISCONNECT")
 329         if hapd:
 330             hapd.request("DISABLE")
 331         if hapd2:
 332             hapd2.request("DISABLE")
 333         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
 334         dev[0].flush_scan_cache()
 335         dev[1].flush_scan_cache()
 336
 337 def test_ap_vht80_csa(dev, apdev):
 338     """VHT with 80 MHz channel width and CSA"""
 339     if not csa_supported(dev[0]):
 340         return "skip"
 341     try:
 342         hapd = None
 343         params = { "ssid": "vht",
 344                    "country_code": "US",
 345                    "hw_mode": "a",
 346                    "channel": "149",
 347                    "ht_capab": "[HT40+]",
 348                    "ieee80211n": "1",
 349                    "ieee80211ac": "1",
 350                    "vht_oper_chwidth": "1",
 351                    "vht_oper_centr_freq_seg0_idx": "155" }
 352         hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 353
 354         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5745")
 355         hwsim_utils.test_connectivity(dev[0], hapd)
 356
 357         hapd.request("CHAN_SWITCH 5 5180 ht vht blocktx center_freq1=5210 sec_channel_offset=1 bandwidth=80")
 358         ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
 359         if ev is None:
 360             raise Exception("CSA finished event timed out")
 361         if "freq=5180" not in ev:
 362             raise Exception("Unexpected channel in CSA finished event")
 363         time.sleep(0.5)
 364         hwsim_utils.test_connectivity(dev[0], hapd)
 365
 366         hapd.request("CHAN_SWITCH 5 5745")
 367         ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
 368         if ev is None:
 369             raise Exception("CSA finished event timed out")
 370         if "freq=5745" not in ev:
 371             raise Exception("Unexpected channel in CSA finished event")
 372         time.sleep(0.5)
 373         hwsim_utils.test_connectivity(dev[0], hapd)
 374
 375         # This CSA to same channel will fail in kernel, so use this only for
 376         # extra code coverage.
 377         hapd.request("CHAN_SWITCH 5 5745")
 378         hapd.wait_event(["AP-CSA-FINISHED"], timeout=1)
 379     except Exception, e:
 380         if isinstance(e, Exception) and str(e) == "AP startup failed":
 381             if not vht_supported():
 382                 logger.info("80 MHz channel not supported in regulatory information")
 383                 return "skip"
 384         raise
 385     finally:
 386         dev[0].request("DISCONNECT")
 387         if hapd:
 388             hapd.request("DISABLE")
 389         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
 390         dev[0].flush_scan_cache()