text: #!/usr/bin/python
  #
  # External password storage
  # Copyright (c) 2014, Jouni Malinen <j@w1.fi>
  #
  # This software may be distributed under the terms of the BSD license.
  # See README for more details.
  
  import logging
  logger = logging.getLogger()
  
  import hostapd
  from test_ap_hs20 import hs20_ap_params
  from test_ap_hs20 import interworking_select
  from test_ap_hs20 import interworking_connect
  
  def test_ext_password_psk(dev, apdev):
      """External password storage for PSK"""
      params = hostapd.wpa2_params(ssid="ext-pw-psk", passphrase="12345678")
      hostapd.add_ap(apdev[0]['ifname'], params)
      dev[0].request("SET ext_password_backend test:psk1=12345678")
      dev[0].connect("ext-pw-psk", raw_psk="ext:psk1", scan_freq="2412")
  
  def test_ext_password_eap(dev, apdev):
      """External password storage for EAP password"""
      params = hostapd.wpa2_eap_params(ssid="ext-pw-eap")
      hostapd.add_ap(apdev[0]['ifname'], params)
      dev[0].request("SET ext_password_backend test:pw0=hello|pw1=password|pw2=secret")
      dev[0].connect("ext-pw-eap", key_mgmt="WPA-EAP", eap="PEAP",
                     identity="user", password_hex="ext:pw1",
                     ca_cert="auth_serv/ca.pem", phase2="auth=MSCHAPV2",
                     scan_freq="2412")
  
  def test_ext_password_interworking(dev, apdev):
      """External password storage for Interworking network selection"""
      bssid = apdev[0]['bssid']
      params = hs20_ap_params()
      hostapd.add_ap(apdev[0]['ifname'], params)
  
      dev[0].hs20_enable()
      dev[0].request("SET ext_password_backend test:pw1=password")
      id = dev[0].add_cred_values({ 'realm': "example.com",
                                    'username': "hs20-test" })
      dev[0].set_cred(id, "password", "ext:pw1")
      interworking_select(dev[0], bssid, freq="2412")
      interworking_connect(dev[0], bssid, "TTLS")
  