tests/hwsim/test_ap_roam.py

   1 # Roaming tests
   2 # Copyright (c) 2013, 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 from remotehost import remote_compatible
   8 import time
   9 import logging
  10 logger = logging.getLogger()
  11
  12 import hwsim_utils
  13 import hostapd
  14 from wpasupplicant import WpaSupplicant
  15
  16 @remote_compatible
  17 def test_ap_roam_open(dev, apdev):
  18     """Roam between two open APs"""
  19     hapd0 = hostapd.add_ap(apdev[0], {"ssid": "test-open"})
  20     dev[0].connect("test-open", key_mgmt="NONE")
  21     hwsim_utils.test_connectivity(dev[0], hapd0)
  22     hapd1 = hostapd.add_ap(apdev[1], {"ssid": "test-open"})
  23     dev[0].scan(type="ONLY")
  24     dev[0].roam(apdev[1]['bssid'])
  25     hwsim_utils.test_connectivity(dev[0], hapd1)
  26     dev[0].roam(apdev[0]['bssid'])
  27     hwsim_utils.test_connectivity(dev[0], hapd0)
  28
  29 @remote_compatible
  30 def test_ap_roam_open_failed(dev, apdev):
  31     """Roam failure due to rejected authentication"""
  32     hapd0 = hostapd.add_ap(apdev[0], {"ssid": "test-open"})
  33     dev[0].connect("test-open", key_mgmt="NONE", scan_freq="2412")
  34     hwsim_utils.test_connectivity(dev[0], hapd0)
  35     params = {"ssid": "test-open", "max_num_sta": "0"}
  36     hapd1 = hostapd.add_ap(apdev[1], params)
  37     bssid = hapd1.own_addr()
  38
  39     dev[0].scan_for_bss(bssid, freq=2412)
  40     dev[0].dump_monitor()
  41     if "OK" not in dev[0].request("ROAM " + bssid):
  42         raise Exception("ROAM failed")
  43
  44     ev = dev[0].wait_event(["CTRL-EVENT-AUTH-REJECT"], 1)
  45     if not ev:
  46         raise Exception("CTRL-EVENT-AUTH-REJECT was not seen")
  47
  48     dev[0].wait_connected(timeout=5)
  49     hwsim_utils.test_connectivity(dev[0], hapd0)
  50
  51 @remote_compatible
  52 def test_ap_roam_wpa2_psk(dev, apdev):
  53     """Roam between two WPA2-PSK APs"""
  54     params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
  55     hapd0 = hostapd.add_ap(apdev[0], params)
  56     dev[0].connect("test-wpa2-psk", psk="12345678")
  57     hwsim_utils.test_connectivity(dev[0], hapd0)
  58     hapd1 = hostapd.add_ap(apdev[1], params)
  59     dev[0].scan(type="ONLY")
  60     dev[0].roam(apdev[1]['bssid'])
  61     hwsim_utils.test_connectivity(dev[0], hapd1)
  62     dev[0].roam(apdev[0]['bssid'])
  63     hwsim_utils.test_connectivity(dev[0], hapd0)
  64
  65 def get_blacklist(dev):
  66     return dev.request("BLACKLIST").splitlines()
  67
  68 def test_ap_reconnect_auth_timeout(dev, apdev, params):
  69     """Reconnect to 2nd AP and authentication times out"""
  70     wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
  71     wpas.interface_add("wlan5",
  72                        drv_params="force_connect_cmd=1,force_bss_selection=1")
  73
  74     params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
  75     hapd0 = hostapd.add_ap(apdev[0], params)
  76     bssid0 = hapd0.own_addr()
  77
  78     wpas.scan_for_bss(bssid0, freq=2412)
  79     id = wpas.connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
  80     hwsim_utils.test_connectivity(wpas, hapd0)
  81
  82     hapd1 = hostapd.add_ap(apdev[1], params)
  83     bssid1 = hapd1.own_addr()
  84
  85     wpas.request("BLACKLIST " + bssid0)
  86
  87     wpas.scan_for_bss(bssid1, freq=2412)
  88     wpas.request("DISCONNECT")
  89     if "OK" not in wpas.request("SET ignore_auth_resp 1"):
  90         raise Exception("SET ignore_auth_resp failed")
  91     if "OK" not in wpas.request("ENABLE_NETWORK " + str(id)):
  92         raise Exception("ENABLE_NETWORK failed")
  93     if "OK" not in wpas.request("SELECT_NETWORK " + str(id)):
  94         raise Exception("SELECT_NETWORK failed")
  95
  96     logger.info("Wait ~10s for auth timeout...")
  97     time.sleep(10)
  98     ev = wpas.wait_event(["CTRL-EVENT-SCAN-STARTED"], 12)
  99     if not ev:
 100         raise Exception("CTRL-EVENT-SCAN-STARTED not seen")
 101
 102     b = get_blacklist(wpas)
 103     if '00:00:00:00:00:00' in b:
 104         raise Exception("Unexpected blacklist contents: " + str(b))
 105     if bssid1 not in b:
 106         raise Exception("Unexpected blacklist contents: " + str(b))
 107
 108 def test_ap_roam_with_reassoc_auth_timeout(dev, apdev, params):
 109     """Roam using reassoc between two APs and authentication times out"""
 110     wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
 111     wpas.interface_add("wlan5",
 112                        drv_params="force_connect_cmd=1,force_bss_selection=1")
 113
 114     params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
 115     hapd0 = hostapd.add_ap(apdev[0], params)
 116     bssid0 = hapd0.own_addr()
 117
 118     id = wpas.connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
 119     hwsim_utils.test_connectivity(wpas, hapd0)
 120
 121     hapd1 = hostapd.add_ap(apdev[1], params)
 122     bssid1 = hapd1.own_addr()
 123     wpas.scan_for_bss(bssid1, freq=2412)
 124
 125     if "OK" not in wpas.request("SET_NETWORK " + str(id) + " bssid " + bssid1):
 126         raise Exception("SET_NETWORK failed")
 127     if "OK" not in wpas.request("SET ignore_auth_resp 1"):
 128         raise Exception("SET ignore_auth_resp failed")
 129     if "OK" not in wpas.request("REASSOCIATE"):
 130         raise Exception("REASSOCIATE failed")
 131
 132     logger.info("Wait ~10s for auth timeout...")
 133     time.sleep(10)
 134     ev = wpas.wait_event(["CTRL-EVENT-SCAN-STARTED"], 12)
 135     if not ev:
 136         raise Exception("CTRL-EVENT-SCAN-STARTED not seen")
 137
 138     b = get_blacklist(wpas)
 139     if bssid0 in b:
 140         raise Exception("Unexpected blacklist contents: " + str(b))
 141
 142 def test_ap_roam_wpa2_psk_failed(dev, apdev, params):
 143     """Roam failure with WPA2-PSK AP due to wrong passphrase"""
 144     params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
 145     hapd0 = hostapd.add_ap(apdev[0], params)
 146     id = dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
 147     hwsim_utils.test_connectivity(dev[0], hapd0)
 148     params['wpa_passphrase'] = "22345678"
 149     hapd1 = hostapd.add_ap(apdev[1], params)
 150     bssid = hapd1.own_addr()
 151     dev[0].scan_for_bss(bssid, freq=2412)
 152
 153     dev[0].dump_monitor()
 154     if "OK" not in dev[0].request("ROAM " + bssid):
 155         raise Exception("ROAM failed")
 156
 157     ev = dev[0].wait_event(["CTRL-EVENT-SSID-TEMP-DISABLED",
 158                             "CTRL-EVENT-CONNECTED"], 5)
 159     if "CTRL-EVENT-CONNECTED" in ev:
 160         raise Exception("Got unexpected CTRL-EVENT-CONNECTED")
 161     if "CTRL-EVENT-SSID-TEMP-DISABLED" not in ev:
 162         raise Exception("CTRL-EVENT-SSID-TEMP-DISABLED not seen")
 163
 164     if "OK" not in dev[0].request("SELECT_NETWORK id=" + str(id)):
 165         raise Exception("SELECT_NETWORK failed")
 166
 167     ev = dev[0].wait_event(["CTRL-EVENT-SSID-REENABLED"], 3)
 168     if not ev:
 169         raise Exception("CTRL-EVENT-SSID-REENABLED not seen")
 170
 171     dev[0].wait_connected(timeout=5)
 172     hwsim_utils.test_connectivity(dev[0], hapd0)
 173
 174 @remote_compatible
 175 def test_ap_reassociation_to_same_bss(dev, apdev):
 176     """Reassociate to the same BSS"""
 177     hapd = hostapd.add_ap(apdev[0], {"ssid": "test-open"})
 178     dev[0].connect("test-open", key_mgmt="NONE")
 179
 180     dev[0].request("REASSOCIATE")
 181     dev[0].wait_connected(timeout=10, error="Reassociation timed out")
 182     hwsim_utils.test_connectivity(dev[0], hapd)
 183
 184     dev[0].request("REATTACH")
 185     dev[0].wait_connected(timeout=10, error="Reattach timed out")
 186     hwsim_utils.test_connectivity(dev[0], hapd)
 187
 188     # Wait for previous scan results to expire to trigger new scan
 189     time.sleep(5)
 190     dev[0].request("REATTACH")
 191     dev[0].wait_connected(timeout=10, error="Reattach timed out")
 192     hwsim_utils.test_connectivity(dev[0], hapd)
 193
 194 @remote_compatible
 195 def test_ap_roam_set_bssid(dev, apdev):
 196     """Roam control"""
 197     hostapd.add_ap(apdev[0], {"ssid": "test-open"})
 198     hostapd.add_ap(apdev[1], {"ssid": "test-open"})
 199     id = dev[0].connect("test-open", key_mgmt="NONE", bssid=apdev[1]['bssid'],
 200                         scan_freq="2412")
 201     if dev[0].get_status_field('bssid') != apdev[1]['bssid']:
 202         raise Exception("Unexpected BSS")
 203     # for now, these are just verifying that the code path to indicate
 204     # within-ESS roaming changes can be executed; the actual results of those
 205     # operations are not currently verified (that would require a test driver
 206     # that does BSS selection)
 207     dev[0].set_network(id, "bssid", "")
 208     dev[0].set_network(id, "bssid", apdev[0]['bssid'])
 209     dev[0].set_network(id, "bssid", apdev[1]['bssid'])
 210
 211 @remote_compatible
 212 def test_ap_roam_wpa2_psk_race(dev, apdev):
 213     """Roam between two WPA2-PSK APs and try to hit a disconnection race"""
 214     params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
 215     hapd0 = hostapd.add_ap(apdev[0], params)
 216     dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
 217     hwsim_utils.test_connectivity(dev[0], hapd0)
 218
 219     params['channel'] = '2'
 220     hapd1 = hostapd.add_ap(apdev[1], params)
 221     dev[0].scan_for_bss(apdev[1]['bssid'], freq=2417)
 222     dev[0].roam(apdev[1]['bssid'])
 223     hwsim_utils.test_connectivity(dev[0], hapd1)
 224     dev[0].roam(apdev[0]['bssid'])
 225     hwsim_utils.test_connectivity(dev[0], hapd0)
 226     # Wait at least two seconds to trigger the previous issue with the
 227     # disconnection callback.
 228     for i in range(3):
 229         time.sleep(0.8)
 230         hwsim_utils.test_connectivity(dev[0], hapd0)