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 subprocess, time
  11
  12 import hwsim_utils
  13 import hostapd
  14
  15 def vht_supported():
  16     cmd = subprocess.Popen(["iw", "reg", "get"], stdout=subprocess.PIPE)
  17     reg = cmd.stdout.read()
  18     if "@ 80)" in reg or "@ 160)" in reg:
  19         return True
  20     return False
  21
  22 def test_ap_vht80(dev, apdev):
  23     """VHT with 80 MHz channel width"""
  24     try:
  25         params = { "ssid": "vht",
  26                    "country_code": "FI",
  27                    "hw_mode": "a",
  28                    "channel": "36",
  29                    "ht_capab": "[HT40+]",
  30                    "ieee80211n": "1",
  31                    "ieee80211ac": "1",
  32                    "vht_oper_chwidth": "1",
  33                    "vht_oper_centr_freq_seg0_idx": "42" }
  34         hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  35
  36         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
  37         hwsim_utils.test_connectivity(dev[0].ifname, apdev[0]['ifname'])
  38     except Exception, e:
  39         if isinstance(e, Exception) and str(e) == "AP startup failed":
  40             if not vht_supported():
  41                 logger.info("80 MHz channel not supported in regulatory information")
  42                 return "skip"
  43         raise
  44     finally:
  45         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
  46
  47 def test_ap_vht80_params(dev, apdev):
  48     """VHT with 80 MHz channel width and number of optional features enabled"""
  49     try:
  50         params = { "ssid": "vht",
  51                    "country_code": "FI",
  52                    "hw_mode": "a",
  53                    "channel": "36",
  54                    "ht_capab": "[HT40+][SHORT-GI-40][DSS_CCK-40]",
  55                    "ieee80211n": "1",
  56                    "ieee80211ac": "1",
  57                    "vht_oper_chwidth": "1",
  58                    "vht_capab": "[MAX-MPDU-11454][RXLDPC][SHORT-GI-80][TX-STBC-2BY1][RX-STBC-1][MAX-A-MPDU-LEN-EXP0]",
  59                    "vht_oper_centr_freq_seg0_idx": "42",
  60                    "require_vht": "1" }
  61         hapd = hostapd.add_ap(apdev[0]['ifname'], params)
  62
  63         dev[1].connect("vht", key_mgmt="NONE", scan_freq="5180",
  64                        disable_vht="1", wait_connect=False)
  65         dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180")
  66         ev = dev[1].wait_event(["CTRL-EVENT-ASSOC-REJECT"])
  67         if ev is None:
  68             raise Exception("Association rejection timed out")
  69         if "status_code=104" not in ev:
  70             raise Exception("Unexpected rejection status code")
  71         dev[1].request("DISCONNECT")
  72         hwsim_utils.test_connectivity(dev[0].ifname, apdev[0]['ifname'])
  73     except Exception, e:
  74         if isinstance(e, Exception) and str(e) == "AP startup failed":
  75             if not vht_supported():
  76                 logger.info("80 MHz channel not supported in regulatory information")
  77                 return "skip"
  78         raise
  79     finally:
  80         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])
  81
  82 def test_ap_vht_20(devs, apdevs):
  83     dev = devs[0]
  84     ap = apdevs[0]
  85     try:
  86         params = { "ssid": "test-vht20",
  87                    "country_code": "DE",
  88                    "hw_mode": "a",
  89                    "channel": "36",
  90                    "ieee80211n": "1",
  91                    "ieee80211ac": "1",
  92                    "ht_capab": "",
  93                    "vht_capab": "",
  94                    "vht_oper_chwidth": "0",
  95                    "vht_oper_centr_freq_seg0_idx": "0",
  96                    "supported_rates": "60 120 240 360 480 540",
  97                    "require_vht": "1",
  98                  }
  99         hostapd.add_ap(ap['ifname'], params)
 100         dev.connect("test-vht20", scan_freq="5180", key_mgmt="NONE")
 101         hwsim_utils.test_connectivity(dev.ifname, ap['ifname'])
 102     finally:
 103         subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])