| # cfg80211 test cases |
| # 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 binascii |
| import os |
| import subprocess |
| import time |
| |
| import hostapd |
| from nl80211 import * |
| |
| def nl80211_command(dev, cmd, attr): |
| res = dev.request("VENDOR ffffffff {} {}".format(nl80211_cmd[cmd], |
| binascii.hexlify(attr))) |
| if "FAIL" in res: |
| raise Exception("nl80211 command failed") |
| return binascii.unhexlify(res) |
| |
| def test_cfg80211_disassociate(dev, apdev): |
| """cfg80211 disassociation command""" |
| hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": "open" }) |
| dev[0].connect("open", key_mgmt="NONE", scan_freq="2412") |
| ev = hapd.wait_event([ "AP-STA-CONNECTED" ], timeout=5) |
| if ev is None: |
| raise Exception("No connection event received from hostapd") |
| |
| ifindex = int(dev[0].get_driver_status_field("ifindex")) |
| attrs = build_nl80211_attr_u32('IFINDEX', ifindex) |
| attrs += build_nl80211_attr_u16('REASON_CODE', 1) |
| attrs += build_nl80211_attr_mac('MAC', apdev[0]['bssid']) |
| nl80211_command(dev[0], 'DISASSOCIATE', attrs) |
| |
| ev = hapd.wait_event([ "AP-STA-DISCONNECTED" ], timeout=5) |
| if ev is None: |
| raise Exception("No disconnection event received from hostapd") |
| |
| def nl80211_frame(dev, ifindex, frame, freq=None, duration=None, offchannel_tx_ok=False): |
| attrs = build_nl80211_attr_u32('IFINDEX', ifindex) |
| if freq is not None: |
| attrs += build_nl80211_attr_u32('WIPHY_FREQ', freq) |
| if duration is not None: |
| attrs += build_nl80211_attr_u32('DURATION', duration) |
| if offchannel_tx_ok: |
| attrs += build_nl80211_attr_flag('OFFCHANNEL_TX_OK') |
| attrs += build_nl80211_attr('FRAME', frame) |
| return parse_nl80211_attrs(nl80211_command(dev, 'FRAME', attrs)) |
| |
| def nl80211_frame_wait_cancel(dev, ifindex, cookie): |
| attrs = build_nl80211_attr_u32('IFINDEX', ifindex) |
| attrs += build_nl80211_attr('COOKIE', cookie) |
| return nl80211_command(dev, 'FRAME_WAIT_CANCEL', attrs) |
| |
| def nl80211_remain_on_channel(dev, ifindex, freq, duration): |
| attrs = build_nl80211_attr_u32('IFINDEX', ifindex) |
| attrs += build_nl80211_attr_u32('WIPHY_FREQ', freq) |
| attrs += build_nl80211_attr_u32('DURATION', duration) |
| return nl80211_command(dev, 'REMAIN_ON_CHANNEL', attrs) |
| |
| def test_cfg80211_tx_frame(dev, apdev, params): |
| """cfg80211 offchannel TX frame command""" |
| ifindex = int(dev[0].get_driver_status_field("ifindex")) |
| |
| frame = binascii.unhexlify("d000000002000000010002000000000002000000010000000409506f9a090001dd5e506f9a0902020025080401001f0502006414060500585804510b0906000200000000000b1000585804510b0102030405060708090a0b0d1d000200000000000108000000000000000000101100084465766963652041110500585804510bdd190050f204104a0001101012000200011049000600372a000120") |
| |
| dev[0].request("P2P_GROUP_ADD freq=2412") |
| res = nl80211_frame(dev[0], ifindex, frame, freq=2422, duration=500, |
| offchannel_tx_ok=True) |
| time.sleep(0.1) |
| |
| # note: Uncommenting this seems to remove the incorrect channel issue |
| #nl80211_frame_wait_cancel(dev[0], ifindex, res[nl80211_attr['COOKIE']]) |
| |
| # note: this Action frame ends up getting sent incorrectly on 2422 MHz |
| nl80211_frame(dev[0], ifindex, frame, freq=2412) |
| time.sleep(1.5) |
| # note: also the Deauthenticate frame sent by the GO going down ends up |
| # being transmitted incorrectly on 2422 MHz. |
| |
| try: |
| arg = [ "tshark", |
| "-r", os.path.join(params['logdir'], "hwsim0.pcapng"), |
| "-R", "wlan.fc.type_subtype == 13", |
| "-Tfields", "-e", "radiotap.channel.freq" ] |
| cmd = subprocess.Popen(arg, stdout=subprocess.PIPE, |
| stderr=open('/dev/null', 'w')) |
| except Exception, e: |
| logger.info("Could run run tshark check: " + str(e)) |
| cmd = None |
| pass |
| |
| if cmd: |
| freq = cmd.stdout.read().splitlines() |
| if len(freq) != 2: |
| raise Exception("Unexpected number of Action frames (%d)" % len(freq)) |
| if freq[0] != "2422": |
| raise Exception("First Action frame on unexpected channel: %s MHz" % freq[0]) |
| if freq[1] != "2412": |
| raise Exception("Second Action frame on unexpected channel: %s MHz" % freq[1]) |