| # Copyright (c) 2015 The Chromium OS Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style license that can be |
| # found in the LICENSE file. |
| |
| import logging |
| import time |
| |
| from autotest_lib.client.common_lib import error |
| from autotest_lib.client.common_lib.cros.network import xmlrpc_datatypes |
| from autotest_lib.server import site_linux_system |
| from autotest_lib.server.cros.network import frame_sender |
| from autotest_lib.server.cros.network import hostap_config |
| from autotest_lib.server.cros.network import wifi_cell_test_base |
| |
| class network_WiFi_MalformedProbeResp(wifi_cell_test_base.WiFiCellTestBase): |
| """Test that we can stay connected to the configured AP when receiving |
| malformed probe responses from an AP that we are not connected to.""" |
| version = 1 |
| |
| PROBE_RESPONSE_DELAY_MSEC = 50 |
| SCAN_LOOP_SEC = 60 |
| SCAN_LOOP_SLEEP_SEC = 10 |
| PROBE_RESPONSE_TEST_CHANNEL = 1 |
| |
| def run_once(self): |
| """Sets up a router, connects to it, pings it, and repeats.""" |
| configuration = hostap_config.HostapConfig( |
| channel=self.PROBE_RESPONSE_TEST_CHANNEL, |
| mode=hostap_config.HostapConfig.MODE_11B) |
| self.context.router.require_capabilities( |
| [site_linux_system.LinuxSystem.CAPABILITY_SEND_MANAGEMENT_FRAME, |
| site_linux_system.LinuxSystem.CAPABILITY_MULTI_AP_SAME_BAND]) |
| |
| self.context.configure(configuration) |
| # Configure 2nd AP to inject the malformed probe responses. |
| self.context.configure(configuration, multi_interface=True) |
| client_mac = self.context.client.wifi_mac |
| |
| pretest_reset_count = self.context.client.get_num_card_resets() |
| logging.debug('pretest_reset_count=%d', pretest_reset_count) |
| self.context.capture_host.start_capture( |
| configuration.frequency, |
| ht_type=configuration.ht_packet_capture_mode) |
| assoc_params = xmlrpc_datatypes.AssociationParameters() |
| assoc_params.ssid = self.context.router.get_ssid(instance=0) |
| assoc_result = self.context.assert_connect_wifi(assoc_params) |
| start_time = time.time() |
| count = 1 |
| scan = 0 |
| rx_probe_resp_count = 0 |
| with self.context.client.assert_no_disconnects(): |
| with frame_sender.FrameSender( |
| self.context.router, |
| 'probe_response', |
| self.PROBE_RESPONSE_TEST_CHANNEL, |
| ssid_prefix='TestingProbes', |
| num_bss=1, |
| frame_count=0, |
| delay=self.PROBE_RESPONSE_DELAY_MSEC, |
| dest_addr=client_mac, |
| probe_resp_footer='\xdd\xb7\x00\x1a\x11\x01\x01\x02\x03', |
| instance=1): |
| while time.time() - start_time < self.SCAN_LOOP_SEC: |
| bss_list = self.context.client.iw_runner.scan( |
| self.context.client.wifi_if, [2412]) |
| for bss in bss_list: |
| logging.debug('found bss: %s', bss.ssid) |
| if bss.ssid == 'TestingProbes00000000': |
| rx_probe_resp_count += 1 |
| time.sleep(self.SCAN_LOOP_SLEEP_SEC) |
| else: |
| logging.debug('done scanning for networks') |
| |
| logging.debug('received %s probe_responses', rx_probe_resp_count) |
| if rx_probe_resp_count == 0: |
| raise error.TestFail('Client failed to receive probe responses') |
| |
| reset_count = self.context.client.get_num_card_resets() |
| logging.debug('reset count = %s', reset_count) |
| test_resets = reset_count - pretest_reset_count |
| if test_resets < 0: |
| logging.debug('logs rotated during test') |
| if reset_count > 0: |
| test_resets = reset_count |
| |
| if test_resets > 0: |
| raise error.TestFail('Client reset card') |
| self.context.client.shill.disconnect(assoc_params.ssid) |
| self.context.router.deconfig() |
| self.context.capture_host.stop_capture() |
