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     """VHT and 20 MHz channel"""
  87     dev = devs[0]
  88     ap = apdevs[0]
  89     try:
  90         params = { "ssid": "test-vht20",
  91                    "country_code": "DE",
  92                    "hw_mode": "a",
  93                    "channel": "36",
  94                    "ieee80211n": "1",
  95                    "ieee80211ac": "1",
  96                    "ht_capab": "",
  97                    "vht_capab": "",
  98                    "vht_oper_chwidth": "0",
  99                    "vht_oper_centr_freq_seg0_idx": "0",
 100                    "supported_rates": "60 120 240 360 480 540",
 101                    "require_vht": "1",
 102                  }
 103         hapd = hostapd.add_ap(ap['ifname'], params)
 104         dev.connect("test-vht20", scan_freq="5180", key_mgmt="NONE")
 105         hwsim_utils.test_connectivity(dev, hapd)
 106     finally:
 107         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
 108
 109 def test_ap_vht_capab_not_supported(dev, apdev):
 110     """VHT configuration with driver not supporting all vht_capab entries"""
 111     try:
 112         params = { "ssid": "vht",
 113                    "country_code": "FI",
 114                    "hw_mode": "a",
 115                    "channel": "36",
 116                    "ht_capab": "[HT40+][SHORT-GI-40][DSS_CCK-40]",
 117                    "ieee80211n": "1",
 118                    "ieee80211ac": "1",
 119                    "vht_oper_chwidth": "1",
 120                    "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]",
 121                    "vht_oper_centr_freq_seg0_idx": "42",
 122                    "require_vht": "1" }
 123         hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 124         ev = hapd.wait_event(["AP-DISABLED"], timeout=5)
 125         if ev is None:
 126             raise Exception("Startup failure not reported")
 127         for i in range(1, 7):
 128             if "OK" not in hapd.request("SET vht_capab [MAX-A-MPDU-LEN-EXP%d]" % i):
 129                 raise Exception("Unexpected SET failure")
 130     finally:
 131         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
 132
 133 def test_ap_vht160(dev, apdev):
 134     """VHT with 160 MHz channel width"""
 135     try:
 136         params = { "ssid": "vht",
 137                    "country_code": "FI",
 138                    "hw_mode": "a",
 139                    "channel": "36",
 140                    "ht_capab": "[HT40+]",
 141                    "ieee80211n": "1",
 142                    "ieee80211ac": "1",
 143                    "vht_oper_chwidth": "2",
 144                    "vht_oper_centr_freq_seg0_idx": "50",
 145                    'ieee80211d': '1',
 146                    'ieee80211h': '1' }
 147         hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 148
 149         ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
 150         if "DFS-CAC-START" not in ev:
 151             raise Exception("Unexpected DFS event")
 152
 153         state = hapd.get_status_field("state")
 154         if state != "DFS":
 155             if state == "DISABLED" and not os.path.exists("dfs"):
 156                 # Not all systems have recent enough CRDA version and
 157                 # wireless-regdb changes to support 160 MHz and DFS. For now,
 158                 # do not report failures for this test case.
 159                 return "skip"
 160             raise Exception("Unexpected interface state: " + state)
 161
 162         params = { "ssid": "vht2",
 163                    "country_code": "FI",
 164                    "hw_mode": "a",
 165                    "channel": "100",
 166                    "ht_capab": "[HT40+]",
 167                    "ieee80211n": "1",
 168                    "ieee80211ac": "1",
 169                    "vht_oper_chwidth": "2",
 170                    "vht_oper_centr_freq_seg0_idx": "114",
 171                    'ieee80211d': '1',
 172                    'ieee80211h': '1' }
 173         hapd2 = hostapd.add_ap(apdev[1]['ifname'], params, wait_enabled=False)
 174
 175         ev = wait_dfs_event(hapd2, "DFS-CAC-START", 5)
 176         if "DFS-CAC-START" not in ev:
 177             raise Exception("Unexpected DFS event(2)")
 178
 179         state = hapd2.get_status_field("state")
 180         if state != "DFS":
 181             raise Exception("Unexpected interface state(2): " + state)
 182
 183         logger.info("Waiting for CAC to complete")
 184
 185         ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
 186         if "success=1" not in ev:
 187             raise Exception("CAC failed")
 188         if "freq=5180" not in ev:
 189             raise Exception("Unexpected DFS freq result")
 190
 191         ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
 192         if not ev:
 193             raise Exception("AP setup timed out")
 194
 195         state = hapd.get_status_field("state")
 196         if state != "ENABLED":
 197             raise Exception("Unexpected interface state")
 198
 199         ev = wait_dfs_event(hapd2, "DFS-CAC-COMPLETED", 70)
 200         if "success=1" not in ev:
 201             raise Exception("CAC failed(2)")
 202         if "freq=5500" not in ev:
 203             raise Exception("Unexpected DFS freq result(2)")
 204
 205         ev = hapd2.wait_event(["AP-ENABLED"], timeout=5)
 206         if not ev:
 207             raise Exception("AP setup timed out(2)")
 208
 209         state = hapd2.get_status_field("state")
 210         if state != "ENABLED":
 211             raise Exception("Unexpected interface state(2)")
 212
 213         freq = hapd2.get_status_field("freq")
 214         if freq != "5500":
 215             raise Exception("Unexpected frequency(2)")
 216
 217         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
 218         hwsim_utils.test_connectivity(dev[0], hapd)
 219         dev[1].connect("vht2", key_mgmt="NONE", scan_freq="5500")
 220         hwsim_utils.test_connectivity(dev[1], hapd2)
 221     except Exception, e:
 222         if isinstance(e, Exception) and str(e) == "AP startup failed":
 223             if not vht_supported():
 224                 logger.info("80/160 MHz channel not supported in regulatory information")
 225                 return "skip"
 226         raise
 227     finally:
 228         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
 229
 230 def test_ap_vht80plus80(dev, apdev):
 231     """VHT with 80+80 MHz channel width"""
 232     try:
 233         params = { "ssid": "vht",
 234                    "country_code": "US",
 235                    "hw_mode": "a",
 236                    "channel": "52",
 237                    "ht_capab": "[HT40+]",
 238                    "ieee80211n": "1",
 239                    "ieee80211ac": "1",
 240                    "vht_oper_chwidth": "3",
 241                    "vht_oper_centr_freq_seg0_idx": "58",
 242                    "vht_oper_centr_freq_seg1_idx": "155",
 243                    'ieee80211d': '1',
 244                    'ieee80211h': '1' }
 245         hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 246         # This will actually fail since DFS on 80+80 is not yet supported
 247         ev = hapd.wait_event(["AP-DISABLED"], timeout=5)
 248         # ignore result to avoid breaking the test once 80+80 DFS gets enabled
 249
 250         params = { "ssid": "vht2",
 251                    "country_code": "US",
 252                    "hw_mode": "a",
 253                    "channel": "36",
 254                    "ht_capab": "[HT40+]",
 255                    "ieee80211n": "1",
 256                    "ieee80211ac": "1",
 257                    "vht_oper_chwidth": "3",
 258                    "vht_oper_centr_freq_seg0_idx": "42",
 259                    "vht_oper_centr_freq_seg1_idx": "155" }
 260         hapd2 = hostapd.add_ap(apdev[1]['ifname'], params, wait_enabled=False)
 261
 262         ev = hapd2.wait_event(["AP-ENABLED"], timeout=5)
 263         if not ev:
 264             raise Exception("AP setup timed out(2)")
 265
 266         state = hapd2.get_status_field("state")
 267         if state != "ENABLED":
 268             raise Exception("Unexpected interface state(2)")
 269
 270         dev[1].connect("vht2", key_mgmt="NONE", scan_freq="5180")
 271         hwsim_utils.test_connectivity(dev[1], hapd2)
 272     except Exception, e:
 273         if isinstance(e, Exception) and str(e) == "AP startup failed":
 274             if not vht_supported():
 275                 logger.info("80/160 MHz channel not supported in regulatory information")
 276                 return "skip"
 277         raise
 278     finally:
 279         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
 280
 281 def test_ap_vht80_csa(dev, apdev):
 282     """VHT with 80 MHz channel width and CSA"""
 283     if not csa_supported(dev[0]):
 284         return "skip"
 285     try:
 286         params = { "ssid": "vht",
 287                    "country_code": "US",
 288                    "hw_mode": "a",
 289                    "channel": "149",
 290                    "ht_capab": "[HT40+]",
 291                    "ieee80211n": "1",
 292                    "ieee80211ac": "1",
 293                    "vht_oper_chwidth": "1",
 294                    "vht_oper_centr_freq_seg0_idx": "155" }
 295         hapd = hostapd.add_ap(apdev[0]['ifname'], params)
 296
 297         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5745")
 298         hwsim_utils.test_connectivity(dev[0], hapd)
 299
 300         hapd.request("CHAN_SWITCH 5 5180 ht vht blocktx center_freq1=5210 sec_channel_offset=1 bandwidth=80")
 301         ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
 302         if ev is None:
 303             raise Exception("CSA finished event timed out")
 304         if "freq=5180" not in ev:
 305             raise Exception("Unexpected channel in CSA finished event")
 306         time.sleep(0.5)
 307         hwsim_utils.test_connectivity(dev[0], hapd)
 308
 309         hapd.request("CHAN_SWITCH 5 5745")
 310         ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
 311         if ev is None:
 312             raise Exception("CSA finished event timed out")
 313         if "freq=5745" not in ev:
 314             raise Exception("Unexpected channel in CSA finished event")
 315         time.sleep(0.5)
 316         hwsim_utils.test_connectivity(dev[0], hapd)
 317
 318         # This CSA to same channel will fail in kernel, so use this only for
 319         # extra code coverage.
 320         hapd.request("CHAN_SWITCH 5 5745")
 321         hapd.wait_event(["AP-CSA-FINISHED"], timeout=1)
 322     except Exception, e:
 323         if isinstance(e, Exception) and str(e) == "AP startup failed":
 324             if not vht_supported():
 325                 logger.info("80 MHz channel not supported in regulatory information")
 326                 return "skip"
 327         raise
 328     finally:
 329         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])