tests: mac80211 and unknown Action frame rejection in STA mode
Signed-off-by: Jouni Malinen <j@w1.fi>
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1 changed files with 72 additions and 1 deletions
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@ -1,4 +1,4 @@
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# Test a few kernel bugs
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# Test a few kernel bugs and functionality
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# Copyright (c) 2016, Intel Deutschland GmbH
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#
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# Author: Johannes Berg <johannes.berg@intel.com>
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@ -8,6 +8,10 @@
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import hostapd
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import binascii
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import os
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import struct
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from test_wnm import expect_ack
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from tshark import run_tshark
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def _test_kernel_bss_leak(dev, apdev, deauth):
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ssid = "test-bss-leak"
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@ -55,3 +59,70 @@ def test_kernel_bss_leak_deauth(dev, apdev):
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def test_kernel_bss_leak_timeout(dev, apdev):
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"""cfg80211/mac80211 BSS leak on timeout"""
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return _test_kernel_bss_leak(dev, apdev, deauth=False)
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MGMT_SUBTYPE_ACTION = 13
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def expect_no_ack(hapd):
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ev = hapd.wait_event(["MGMT-TX-STATUS"], timeout=5)
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if ev is None:
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raise Exception("Missing TX status")
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if "ok=0" not in ev:
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raise Exception("Action frame unexpectedly acknowledged")
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def test_kernel_unknown_action_frame_rejection_sta(dev, apdev, params):
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"""mac80211 and unknown Action frame rejection in STA mode"""
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hapd = hostapd.add_ap(apdev[0], { "ssid": "unknown-action" })
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dev[0].connect("unknown-action", key_mgmt="NONE", scan_freq="2412")
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bssid = hapd.own_addr()
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addr = dev[0].own_addr()
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hapd.set("ext_mgmt_frame_handling", "1")
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# Unicast Action frame with unknown category (response expected)
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msg = {}
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msg['fc'] = MGMT_SUBTYPE_ACTION << 4
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msg['da'] = addr
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msg['sa'] = bssid
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msg['bssid'] = bssid
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msg['payload'] = struct.pack("<BB", 0x70, 0)
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hapd.mgmt_tx(msg)
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expect_ack(hapd)
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# Note: mac80211 does not allow group-addressed Action frames in unknown
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# categories to be transmitted in AP mode, so for now, these steps are
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# commented out.
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# Multicast Action frame with unknown category (no response expected)
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#msg['da'] = "01:ff:ff:ff:ff:ff"
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#msg['payload'] = struct.pack("<BB", 0x71, 1)
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#hapd.mgmt_tx(msg)
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#expect_no_ack(hapd)
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# Broadcast Action frame with unknown category (no response expected)
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#msg['da'] = "ff:ff:ff:ff:ff:ff"
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#msg['payload'] = struct.pack("<BB", 0x72, 2)
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#hapd.mgmt_tx(msg)
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#expect_no_ack(hapd)
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# Unicast Action frame with error indication category (no response expected)
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msg['da'] = addr
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msg['payload'] = struct.pack("<BB", 0xf3, 3)
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hapd.mgmt_tx(msg)
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expect_ack(hapd)
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# Unicast Action frame with unknown category (response expected)
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msg['da'] = addr
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msg['payload'] = struct.pack("<BB", 0x74, 4)
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hapd.mgmt_tx(msg)
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expect_ack(hapd)
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out = run_tshark(os.path.join(params['logdir'], "hwsim0.pcapng"),
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"wlan.sa == %s && wlan.fc.type_subtype == 0x0d" % addr,
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display=["wlan_mgt.fixed.category_code"])
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res = out.splitlines()
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categ = [ int(x) for x in res ]
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if 0xf2 in categ or 0xf3 in categ:
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raise Exception("Unexpected Action frame rejection: " + str(categ))
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if 0xf0 not in categ or 0xf4 not in categ:
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raise Exception("Action frame rejection missing: " + str(categ))
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