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