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