tests: Add test cases for GAS operations

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>

tests/hwsim/test_gas.py

@@ -0,0 +1,181 @@
+#!/usr/bin/python
+#
+# GAS tests
+# Copyright (c) 2013, Qualcomm Atheros, Inc.
+#
+# This software may be distributed under the terms of the BSD license.
+# See README for more details.
+
+import time
+import logging
+logger = logging.getLogger(__name__)
+import re
+
+import hostapd
+
+def hs20_ap_params():
+    params = hostapd.wpa2_params(ssid="test-gas")
+    params['wpa_key_mgmt'] = "WPA-EAP"
+    params['ieee80211w'] = "1"
+    params['ieee8021x'] = "1"
+    params['auth_server_addr'] = "127.0.0.1"
+    params['auth_server_port'] = "1812"
+    params['auth_server_shared_secret'] = "radius"
+    params['interworking'] = "1"
+    params['access_network_type'] = "14"
+    params['internet'] = "1"
+    params['asra'] = "0"
+    params['esr'] = "0"
+    params['uesa'] = "0"
+    params['venue_group'] = "7"
+    params['venue_type'] = "1"
+    params['venue_name'] = [ "eng:Example venue", "fin:Esimerkkipaikka" ]
+    params['roaming_consortium'] = [ "112233", "1020304050", "010203040506",
+                                     "fedcba" ]
+    params['domain_name'] = "example.com,another.example.com"
+    params['nai_realm'] = [ "0,example.com,13[5:6],21[2:4][5:7]",
+                            "0,another.example.com" ]
+    params['anqp_3gpp_cell_net'] = "244,91"
+    return params
+
+def get_gas_response(dev, bssid, info, allow_fetch_failure=False):
+    exp = r'<.>(GAS-RESPONSE-INFO) addr=([0-9a-f:]*) dialog_token=([0-9]*) status_code=([0-9]*) resp_len=([\-0-9]*)'
+    res = re.split(exp, info)
+    if len(res) < 6:
+        raise Exception("Could not parse GAS-RESPONSE-INFO")
+    if res[2] != bssid:
+        raise Exception("Unexpected BSSID in response")
+    token = res[3]
+    status = res[4]
+    if status != "0":
+        raise Exception("GAS query failed")
+    resp_len = res[5]
+    if resp_len == "-1":
+        raise Exception("GAS query reported invalid response length")
+    if int(resp_len) > 2000:
+        raise Exception("Unexpected long GAS response")
+
+    resp = dev.request("GAS_RESPONSE_GET " + bssid + " " + token)
+    if "FAIL" in resp:
+        if allow_fetch_failure:
+            logger.debug("GAS response was not available anymore")
+            return
+        raise Exception("Could not fetch GAS response")
+    if len(resp) != int(resp_len) * 2:
+        raise Exception("Unexpected GAS response length")
+    logger.debug("GAS response: " + resp)
+
+def test_gas_generic(dev, apdev):
+    """Generic GAS query"""
+    bssid = apdev[0]['bssid']
+    params = hs20_ap_params()
+    params['hessid'] = bssid
+    hostapd.add_ap(apdev[0]['ifname'], params)
+
+    dev[0].scan()
+    req = dev[0].request("GAS_REQUEST " + bssid + " 00 000102000101")
+    if "FAIL" in req:
+        raise Exception("GAS query request rejected")
+    ev = dev[0].wait_event(["GAS-RESPONSE-INFO"], timeout=10)
+    if ev is None:
+        raise Exception("GAS query timed out")
+    get_gas_response(dev[0], bssid, ev)
+
+def test_gas_concurrent_scan(dev, apdev):
+    """Generic GAS queries with concurrent scan operation"""
+    bssid = apdev[0]['bssid']
+    params = hs20_ap_params()
+    params['hessid'] = bssid
+    hostapd.add_ap(apdev[0]['ifname'], params)
+
+    dev[0].scan()
+
+    logger.info("Request concurrent operations")
+    req = dev[0].request("GAS_REQUEST " + bssid + " 00 000102000101")
+    if "FAIL" in req:
+        raise Exception("GAS query request rejected")
+    req = dev[0].request("GAS_REQUEST " + bssid + " 00 000102000801")
+    if "FAIL" in req:
+        raise Exception("GAS query request rejected")
+    dev[0].request("SCAN")
+    req = dev[0].request("GAS_REQUEST " + bssid + " 00 000102000201")
+    if "FAIL" in req:
+        raise Exception("GAS query request rejected")
+    req = dev[0].request("GAS_REQUEST " + bssid + " 00 000102000501")
+    if "FAIL" in req:
+        raise Exception("GAS query request rejected")
+
+    responses = 0
+    for i in range(0, 5):
+        ev = dev[0].wait_event(["GAS-RESPONSE-INFO", "CTRL-EVENT-SCAN-RESULTS"],
+                               timeout=10)
+        if ev is None:
+            raise Exception("Operation timed out")
+        if "GAS-RESPONSE-INFO" in ev:
+            responses = responses + 1
+            get_gas_response(dev[0], bssid, ev, allow_fetch_failure=True)
+
+    if responses != 4:
+        raise Exception("Unexpected number of GAS responses")
+
+def test_gas_concurrent_connect(dev, apdev):
+    """Generic GAS queries with concurrent connection operation"""
+    bssid = apdev[0]['bssid']
+    params = hs20_ap_params()
+    params['hessid'] = bssid
+    hostapd.add_ap(apdev[0]['ifname'], params)
+
+    dev[0].scan()
+
+    logger.debug("Start concurrent connect and GAS request")
+    dev[0].connect("test-gas", key_mgmt="WPA-EAP", eap="TTLS",
+                   identity="DOMAIN\mschapv2 user", anonymous_identity="ttls",
+                   password="password", phase2="auth=MSCHAPV2",
+                   ca_cert="auth_serv/ca.pem", wait_connect=False)
+    req = dev[0].request("GAS_REQUEST " + bssid + " 00 000102000101")
+    if "FAIL" in req:
+        raise Exception("GAS query request rejected")
+
+    ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED", "GAS-RESPONSE-INFO"],
+                           timeout=20)
+    if ev is None:
+        raise Exception("Operation timed out")
+    if "CTRL-EVENT-CONNECTED" not in ev:
+        raise Exception("Unexpected operation order")
+
+    ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED", "GAS-RESPONSE-INFO"],
+                           timeout=20)
+    if ev is None:
+        raise Exception("Operation timed out")
+    if "GAS-RESPONSE-INFO" not in ev:
+        raise Exception("Unexpected operation order")
+    get_gas_response(dev[0], bssid, ev)
+
+    dev[0].request("DISCONNECT")
+    ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=5)
+    if ev is None:
+        raise Exception("Disconnection timed out")
+
+    logger.debug("Wait six seconds for expiration of connect-without-scan")
+    time.sleep(6)
+
+    logger.debug("Start concurrent GAS request and connect")
+    req = dev[0].request("GAS_REQUEST " + bssid + " 00 000102000101")
+    if "FAIL" in req:
+        raise Exception("GAS query request rejected")
+    dev[0].request("RECONNECT")
+
+    ev = dev[0].wait_event(["GAS-RESPONSE-INFO"], timeout=10)
+    if ev is None:
+        raise Exception("Operation timed out")
+    get_gas_response(dev[0], bssid, ev)
+
+    ev = dev[0].wait_event(["CTRL-EVENT-SCAN-RESULTS"], timeout=20)
+    if ev is None:
+        raise Exception("No new scan results reported")
+
+    ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=20)
+    if ev is None:
+        raise Exception("Operation timed out")
+    if "CTRL-EVENT-CONNECTED" not in ev:
+        raise Exception("Unexpected operation order")