libeap/tests/hwsim/test_ap_acs.py

   1 # Test cases for automatic channel selection with hostapd
   2 # Copyright (c) 2013-2015, Jouni Malinen <j@w1.fi>
   3 #
   4 # This software may be distributed under the terms of the BSD license.
   5 # See README for more details.
   6
   7 import logging
   8 logger = logging.getLogger()
   9 import subprocess
  10 import time
  11
  12 import hostapd
  13 from utils import skip_with_fips
  14 from test_ap_ht import clear_scan_cache
  15
  16 def force_prev_ap_on_24g(ap):
  17     # For now, make sure the last operating channel was on 2.4 GHz band to get
  18     # sufficient survey data from mac80211_hwsim.
  19     hostapd.add_ap(ap['ifname'], { "ssid": "open" })
  20     time.sleep(0.1)
  21     hapd_global = hostapd.HostapdGlobal()
  22     hapd_global.remove(ap['ifname'])
  23
  24 def force_prev_ap_on_5g(ap):
  25     # For now, make sure the last operating channel was on 5 GHz band to get
  26     # sufficient survey data from mac80211_hwsim.
  27     hostapd.add_ap(ap['ifname'], { "ssid": "open", "hw_mode": "a",
  28                                    "channel": "36", "country_code": "US" })
  29     time.sleep(0.1)
  30     hapd_global = hostapd.HostapdGlobal()
  31     hapd_global.remove(ap['ifname'])
  32
  33 def wait_acs(hapd):
  34     ev = hapd.wait_event(["ACS-STARTED", "ACS-COMPLETED", "ACS-FAILED",
  35                           "AP-ENABLED", "AP-DISABLED"], timeout=5)
  36     if not ev:
  37         raise Exception("ACS start timed out")
  38     if "ACS-STARTED" not in ev:
  39         raise Exception("Unexpected ACS event: " + ev)
  40
  41     state = hapd.get_status_field("state")
  42     if state != "ACS":
  43         raise Exception("Unexpected interface state")
  44
  45     ev = hapd.wait_event(["ACS-COMPLETED", "ACS-FAILED", "AP-ENABLED",
  46                           "AP-DISABLED"], timeout=20)
  47     if not ev:
  48         raise Exception("ACS timed out")
  49     if "ACS-COMPLETED" not in ev:
  50         raise Exception("Unexpected ACS event: " + ev)
  51
  52     ev = hapd.wait_event(["AP-ENABLED", "AP-DISABLED"], timeout=5)
  53     if not ev:
  54         raise Exception("AP setup timed out")
  55     if "AP-ENABLED" not in ev:
  56         raise Exception("Unexpected ACS event: " + ev)
  57
  58     state = hapd.get_status_field("state")
  59     if state != "ENABLED":
  60         raise Exception("Unexpected interface state")
  61
  62 def test_ap_acs(dev, apdev):
  63     """Automatic channel selection"""
  64     force_prev_ap_on_24g(apdev[0])
  65     params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
  66     params['channel'] = '0'
  67     hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
  68     wait_acs(hapd)
  69
  70     freq = hapd.get_status_field("freq")
  71     if int(freq) < 2400:
  72         raise Exception("Unexpected frequency")
  73
  74     dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
  75
  76 def test_ap_acs_chanlist(dev, apdev):
  77     """Automatic channel selection with chanlist set"""
  78     force_prev_ap_on_24g(apdev[0])
  79     params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
  80     params['channel'] = '0'
  81     params['chanlist'] = '1 6 11'
  82     hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
  83     wait_acs(hapd)
  84
  85     freq = hapd.get_status_field("freq")
  86     if int(freq) < 2400:
  87         raise Exception("Unexpected frequency")
  88
  89     dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
  90
  91 def test_ap_multi_bss_acs(dev, apdev):
  92     """hostapd start with a multi-BSS configuration file using ACS"""
  93     skip_with_fips(dev[0])
  94     ifname = apdev[0]['ifname']
  95     force_prev_ap_on_24g(apdev[0])
  96
  97     # start the actual test
  98     hostapd.add_iface(ifname, 'multi-bss-acs.conf')
  99     hapd = hostapd.Hostapd(ifname)
 100     hapd.enable()
 101     wait_acs(hapd)
 102
 103     freq = hapd.get_status_field("freq")
 104     if int(freq) < 2400:
 105         raise Exception("Unexpected frequency")
 106
 107     dev[0].connect("bss-1", key_mgmt="NONE", scan_freq=freq)
 108     dev[1].connect("bss-2", psk="12345678", scan_freq=freq)
 109     dev[2].connect("bss-3", psk="qwertyuiop", scan_freq=freq)
 110
 111 def test_ap_acs_40mhz(dev, apdev):
 112     """Automatic channel selection for 40 MHz channel"""
 113     clear_scan_cache(apdev[0]['ifname'])
 114     force_prev_ap_on_24g(apdev[0])
 115     params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
 116     params['channel'] = '0'
 117     params['ht_capab'] = '[HT40+]'
 118     hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 119     wait_acs(hapd)
 120
 121     freq = hapd.get_status_field("freq")
 122     if int(freq) < 2400:
 123         raise Exception("Unexpected frequency")
 124     sec = hapd.get_status_field("secondary_channel")
 125     if int(sec) == 0:
 126         raise Exception("Secondary channel not set")
 127
 128     dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
 129
 130 def test_ap_acs_5ghz(dev, apdev):
 131     """Automatic channel selection on 5 GHz"""
 132     try:
 133         hapd = None
 134         force_prev_ap_on_5g(apdev[0])
 135         params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
 136         params['hw_mode'] = 'a'
 137         params['channel'] = '0'
 138         params['country_code'] = 'US'
 139         hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 140         wait_acs(hapd)
 141         freq = hapd.get_status_field("freq")
 142         if int(freq) < 5000:
 143             raise Exception("Unexpected frequency")
 144
 145         dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
 146
 147     finally:
 148         dev[0].request("DISCONNECT")
 149         if hapd:
 150             hapd.request("DISABLE")
 151         subprocess.call(['iw', 'reg', 'set', '00'])
 152         dev[0].flush_scan_cache()
 153
 154 def test_ap_acs_5ghz_40mhz(dev, apdev):
 155     """Automatic channel selection on 5 GHz for 40 MHz channel"""
 156     try:
 157         hapd = None
 158         force_prev_ap_on_5g(apdev[0])
 159         params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
 160         params['hw_mode'] = 'a'
 161         params['channel'] = '0'
 162         params['ht_capab'] = '[HT40+]'
 163         params['country_code'] = 'US'
 164         hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 165         wait_acs(hapd)
 166         freq = hapd.get_status_field("freq")
 167         if int(freq) < 5000:
 168             raise Exception("Unexpected frequency")
 169
 170         sec = hapd.get_status_field("secondary_channel")
 171         if int(sec) == 0:
 172             raise Exception("Secondary channel not set")
 173
 174         dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
 175
 176     finally:
 177         dev[0].request("DISCONNECT")
 178         if hapd:
 179             hapd.request("DISABLE")
 180         subprocess.call(['iw', 'reg', 'set', '00'])
 181         dev[0].flush_scan_cache()
 182
 183 def test_ap_acs_vht(dev, apdev):
 184     """Automatic channel selection for VHT"""
 185     try:
 186         hapd = None
 187         force_prev_ap_on_5g(apdev[0])
 188         params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
 189         params['hw_mode'] = 'a'
 190         params['channel'] = '0'
 191         params['ht_capab'] = '[HT40+]'
 192         params['country_code'] = 'US'
 193         params['ieee80211ac'] = '1'
 194         params['vht_oper_chwidth'] = '1'
 195         hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 196         wait_acs(hapd)
 197         freq = hapd.get_status_field("freq")
 198         if int(freq) < 5000:
 199             raise Exception("Unexpected frequency")
 200
 201         sec = hapd.get_status_field("secondary_channel")
 202         if int(sec) == 0:
 203             raise Exception("Secondary channel not set")
 204
 205         dev[0].connect("test-acs", psk="12345678", scan_freq=freq)
 206
 207     finally:
 208         dev[0].request("DISCONNECT")
 209         if hapd:
 210             hapd.request("DISABLE")
 211         subprocess.call(['iw', 'reg', 'set', '00'])
 212         dev[0].flush_scan_cache()
 213
 214 def test_ap_acs_bias(dev, apdev):
 215     """Automatic channel selection with bias values"""
 216     force_prev_ap_on_24g(apdev[0])
 217     params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678")
 218     params['channel'] = '0'
 219     params['acs_chan_bias'] = '1:0.8 3:1.2 6:0.7 11:0.8'
 220     hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False)
 221     wait_acs(hapd)
 222
 223     freq = hapd.get_status_field("freq")
 224     if int(freq) < 2400:
 225         raise Exception("Unexpected frequency")
 226
 227     dev[0].connect("test-acs", psk="12345678", scan_freq=freq)