mirror of
https://github.com/vanhoefm/fragattacks.git
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58 lines
1.9 KiB
Python
58 lines
1.9 KiB
Python
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# Test a few kernel bugs
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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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#
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# This software may be distributed under the terms of the BSD license.
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# See README for more details.
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import hostapd
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import binascii
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def _test_kernel_bss_leak(dev, apdev, deauth):
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ssid = "test-bss-leak"
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passphrase = 'qwertyuiop'
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params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
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hapd = hostapd.add_ap(apdev[0], params)
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hapd.set("ext_mgmt_frame_handling", "1")
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dev[0].connect(ssid, psk=passphrase, scan_freq="2412", wait_connect=False)
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while True:
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pkt = hapd.mgmt_rx()
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if not pkt:
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raise Exception("MGMT RX wait timed out for auth frame")
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if pkt['fc'] & 0xc:
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continue
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if pkt['subtype'] == 0: # assoc request
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if deauth:
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# return a deauth immediately
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hapd.mgmt_tx({
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'fc': 0xc0,
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'sa': pkt['da'],
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'da': pkt['sa'],
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'bssid': pkt['bssid'],
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'payload': '\x01\x00',
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})
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break
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else:
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hapd.request("MGMT_RX_PROCESS freq=2412 datarate=0 ssi_signal=-30 frame=%s" % (
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binascii.hexlify(pkt['frame']), ))
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hapd.set("ext_mgmt_frame_handling", "0")
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hapd.request("STOP_AP")
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dev[0].request("REMOVE_NETWORK all")
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dev[0].wait_disconnected()
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dev[0].flush_scan_cache(freq=5180)
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res = dev[0].request("SCAN_RESULTS")
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if len(res.splitlines()) > 1:
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raise Exception("BSS entry should no longer be around")
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def test_kernel_bss_leak_deauth(dev, apdev):
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"""cfg80211/mac80211 BSS leak on deauthentication"""
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return _test_kernel_bss_leak(dev, apdev, deauth=True)
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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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