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9308d0a0 JM |
1 | # cfg80211 test cases |
2 | # Copyright (c) 2014, Jouni Malinen <j@w1.fi> | |
3 | # | |
4 | # This software may be distributed under the terms of the BSD license. | |
5 | # See README for more details. | |
6 | ||
43c5bc94 JM |
7 | import logging |
8 | logger = logging.getLogger() | |
9308d0a0 | 9 | import binascii |
43c5bc94 JM |
10 | import os |
11 | import subprocess | |
12 | import time | |
9308d0a0 JM |
13 | |
14 | import hostapd | |
15 | from nl80211 import * | |
16 | ||
17 | def nl80211_command(dev, cmd, attr): | |
18 | res = dev.request("VENDOR ffffffff {} {}".format(nl80211_cmd[cmd], | |
19 | binascii.hexlify(attr))) | |
20 | if "FAIL" in res: | |
21 | raise Exception("nl80211 command failed") | |
22 | return binascii.unhexlify(res) | |
23 | ||
24 | def test_cfg80211_disassociate(dev, apdev): | |
25 | """cfg80211 disassociation command""" | |
26 | hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": "open" }) | |
27 | dev[0].connect("open", key_mgmt="NONE", scan_freq="2412") | |
28 | ev = hapd.wait_event([ "AP-STA-CONNECTED" ], timeout=5) | |
29 | if ev is None: | |
30 | raise Exception("No connection event received from hostapd") | |
31 | ||
32 | ifindex = int(dev[0].get_driver_status_field("ifindex")) | |
33 | attrs = build_nl80211_attr_u32('IFINDEX', ifindex) | |
34 | attrs += build_nl80211_attr_u16('REASON_CODE', 1) | |
35 | attrs += build_nl80211_attr_mac('MAC', apdev[0]['bssid']) | |
36 | nl80211_command(dev[0], 'DISASSOCIATE', attrs) | |
37 | ||
38 | ev = hapd.wait_event([ "AP-STA-DISCONNECTED" ], timeout=5) | |
39 | if ev is None: | |
40 | raise Exception("No disconnection event received from hostapd") | |
43c5bc94 JM |
41 | |
42 | def nl80211_frame(dev, ifindex, frame, freq=None, duration=None, offchannel_tx_ok=False): | |
43 | attrs = build_nl80211_attr_u32('IFINDEX', ifindex) | |
44 | if freq is not None: | |
45 | attrs += build_nl80211_attr_u32('WIPHY_FREQ', freq) | |
46 | if duration is not None: | |
47 | attrs += build_nl80211_attr_u32('DURATION', duration) | |
48 | if offchannel_tx_ok: | |
49 | attrs += build_nl80211_attr_flag('OFFCHANNEL_TX_OK') | |
50 | attrs += build_nl80211_attr('FRAME', frame) | |
51 | return parse_nl80211_attrs(nl80211_command(dev, 'FRAME', attrs)) | |
52 | ||
53 | def nl80211_frame_wait_cancel(dev, ifindex, cookie): | |
54 | attrs = build_nl80211_attr_u32('IFINDEX', ifindex) | |
55 | attrs += build_nl80211_attr('COOKIE', cookie) | |
56 | return nl80211_command(dev, 'FRAME_WAIT_CANCEL', attrs) | |
57 | ||
58 | def nl80211_remain_on_channel(dev, ifindex, freq, duration): | |
59 | attrs = build_nl80211_attr_u32('IFINDEX', ifindex) | |
60 | attrs += build_nl80211_attr_u32('WIPHY_FREQ', freq) | |
61 | attrs += build_nl80211_attr_u32('DURATION', duration) | |
62 | return nl80211_command(dev, 'REMAIN_ON_CHANNEL', attrs) | |
63 | ||
64 | def test_cfg80211_tx_frame(dev, apdev, params): | |
65 | """cfg80211 offchannel TX frame command""" | |
66 | ifindex = int(dev[0].get_driver_status_field("ifindex")) | |
67 | ||
68 | frame = binascii.unhexlify("d000000002000000010002000000000002000000010000000409506f9a090001dd5e506f9a0902020025080401001f0502006414060500585804510b0906000200000000000b1000585804510b0102030405060708090a0b0d1d000200000000000108000000000000000000101100084465766963652041110500585804510bdd190050f204104a0001101012000200011049000600372a000120") | |
69 | ||
70 | dev[0].request("P2P_GROUP_ADD freq=2412") | |
71 | res = nl80211_frame(dev[0], ifindex, frame, freq=2422, duration=500, | |
72 | offchannel_tx_ok=True) | |
73 | time.sleep(0.1) | |
74 | ||
75 | # note: Uncommenting this seems to remove the incorrect channel issue | |
76 | #nl80211_frame_wait_cancel(dev[0], ifindex, res[nl80211_attr['COOKIE']]) | |
77 | ||
78 | # note: this Action frame ends up getting sent incorrectly on 2422 MHz | |
79 | nl80211_frame(dev[0], ifindex, frame, freq=2412) | |
80 | time.sleep(1.5) | |
81 | # note: also the Deauthenticate frame sent by the GO going down ends up | |
82 | # being transmitted incorrectly on 2422 MHz. | |
83 | ||
84 | try: | |
85 | arg = [ "tshark", | |
86 | "-r", os.path.join(params['logdir'], "hwsim0.pcapng"), | |
87 | "-R", "wlan.fc.type_subtype == 13", | |
88 | "-Tfields", "-e", "radiotap.channel.freq" ] | |
89 | cmd = subprocess.Popen(arg, stdout=subprocess.PIPE, | |
90 | stderr=open('/dev/null', 'w')) | |
91 | except Exception, e: | |
92 | logger.info("Could run run tshark check: " + str(e)) | |
93 | cmd = None | |
94 | pass | |
95 | ||
96 | if cmd: | |
97 | freq = cmd.stdout.read().splitlines() | |
98 | if len(freq) != 2: | |
99 | raise Exception("Unexpected number of Action frames (%d)" % len(freq)) | |
100 | if freq[0] != "2422": | |
101 | raise Exception("First Action frame on unexpected channel: %s MHz" % freq[0]) | |
102 | if freq[1] != "2412": | |
103 | raise Exception("Second Action frame on unexpected channel: %s MHz" % freq[1]) |