tests: EAP-pwd with invalid group

This could result in wpa_supplicant segmentation fault prior to the
EAP-pwd fix for error case handling.

Signed-off-by: Jouni Malinen <j@w1.fi>

tests/hwsim/test_ap_eap.py

@@ -951,6 +951,20 @@ def test_ap_wpa2_eap_pwd_groups(dev, apdev):
         dev[0].request("REMOVE_NETWORK all")
         eap_connect(dev[0], apdev[0], "PWD", "pwd user", password="secret password")
 
+def test_ap_wpa2_eap_pwd_invalid_group(dev, apdev):
+    """WPA2-Enterprise connection using invalid EAP-pwd group"""
+    params = { "ssid": "test-wpa2-eap", "wpa": "2", "wpa_key_mgmt": "WPA-EAP",
+               "rsn_pairwise": "CCMP", "ieee8021x": "1",
+               "eap_server": "1", "eap_user_file": "auth_serv/eap_user.conf" }
+    params['pwd_group'] = "0"
+    hostapd.add_ap(apdev[0]['ifname'], params)
+    dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="PWD",
+                   identity="pwd user", password="secret password",
+                   scan_freq="2412", wait_connect=False)
+    ev = dev[0].wait_event(["CTRL-EVENT-EAP-FAILURE"])
+    if ev is None:
+        raise Exception("Timeout on EAP failure report")
+
 def test_ap_wpa2_eap_gpsk(dev, apdev):
     """WPA2-Enterprise connection using EAP-GPSK"""
     params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")