tests: Add testcase for (reassoc) roam failure due to auth timeout

Add testcase to verify failed roaming attempt due to authentication
timeout blacklists the correct AP. Roaming attempt is performed
with the reassociate command and bssid_set=1. Driver capabilities
are forced to non-SME and driver roaming (BSS selection) mode.

Signed-off-by: Mikael Kanstrup <mikael.kanstrup@sonymobile.com>

tests/hwsim/test_ap_roam.py

@@ -11,6 +11,7 @@ logger = logging.getLogger()
 
 import hwsim_utils
 import hostapd
+from wpasupplicant import WpaSupplicant
 
 @remote_compatible
 def test_ap_roam_open(dev, apdev):
@@ -61,6 +62,43 @@ def test_ap_roam_wpa2_psk(dev, apdev):
     dev[0].roam(apdev[0]['bssid'])
     hwsim_utils.test_connectivity(dev[0], hapd0)
 
+def get_blacklist(dev):
+    return dev.request("BLACKLIST").splitlines()
+
+def test_ap_roam_with_reassoc_auth_timeout(dev, apdev, params):
+    """Roam using reassoc between two APs and authentication times out"""
+    wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
+    wpas.interface_add("wlan5",
+                       drv_params="force_connect_cmd=1,force_bss_selection=1")
+
+    params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")
+    hapd0 = hostapd.add_ap(apdev[0], params)
+    bssid0 = hapd0.own_addr()
+
+    id = wpas.connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
+    hwsim_utils.test_connectivity(wpas, hapd0)
+
+    hapd1 = hostapd.add_ap(apdev[1], params)
+    bssid1 = hapd1.own_addr()
+    wpas.scan_for_bss(bssid1, freq=2412)
+
+    if "OK" not in wpas.request("SET_NETWORK " + str(id) + " bssid " + bssid1):
+        raise Exception("SET_NETWORK failed")
+    if "OK" not in wpas.request("SET ignore_auth_resp 1"):
+        raise Exception("SET ignore_auth_resp failed")
+    if "OK" not in wpas.request("REASSOCIATE"):
+        raise Exception("REASSOCIATE failed")
+
+    logger.info("Wait ~10s for auth timeout...")
+    time.sleep(10)
+    ev = wpas.wait_event(["CTRL-EVENT-SCAN-STARTED"], 12)
+    if not ev:
+        raise Exception("CTRL-EVENT-SCAN-STARTED not seen");
+
+    b = get_blacklist(wpas)
+    if bssid0 in b:
+        raise Exception("Unexpected blacklist contents: " + str(b))
+
 def test_ap_roam_wpa2_psk_failed(dev, apdev, params):
     """Roam failure with WPA2-PSK AP due to wrong passphrase"""
     params = hostapd.wpa2_params(ssid="test-wpa2-psk", passphrase="12345678")