From: Johannes Berg <johannes.berg@xxxxxxxxx>
Add two tests that check if the kernel BSS leak (when we
get a deauth or otherwise abandon an association attempt)
is present in the kernel.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
tests/hwsim/test_kernel.py | 54 ++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
create mode 100644 tests/hwsim/test_kernel.py
diff --git a/tests/hwsim/test_kernel.py b/tests/hwsim/test_kernel.py
new file mode 100644
index 000000000000..373be9496ac1
--- /dev/null
+++ b/tests/hwsim/test_kernel.py
@@ -0,0 +1,54 @@
+# Test a few kernel bugs
+# Copyright (c) 2016, Intel Deutschland GmbH
+#
+# Author: Johannes Berg <johannes.berg@xxxxxxxxx>
+#
+# This software may be distributed under the terms of the BSD license.
+# See README for more details.
+
+import hostapd
+import binascii
+
+def _test_kernel_bss_leak(dev, apdev, deauth):
+ ssid = "test-bss-leak"
+ passphrase = 'qwertyuiop'
+ params = hostapd.wpa2_params(ssid=ssid, passphrase=passphrase)
+ hapd = hostapd.add_ap(apdev[0], params)
+ hapd.set("ext_mgmt_frame_handling", "1")
+ dev[0].connect(ssid, psk=passphrase, scan_freq="2412", wait_connect=False)
+ while True:
+ pkt = hapd.mgmt_rx()
+ if not pkt:
+ raise Exception("MGMT RX wait timed out for auth frame")
+ if pkt['fc'] & 0xc:
+ continue
+ if pkt['subtype'] == 0: # assoc request
+ if deauth:
+ # return a deauth immediately
+ hapd.mgmt_tx({
+ 'fc': 0xc0,
+ 'sa': pkt['da'],
+ 'da': pkt['sa'],
+ 'bssid': pkt['bssid'],
+ 'payload': '\x01\x00',
+ })
+ break
+ else:
+ hapd.request("MGMT_RX_PROCESS freq=2412 datarate=0 ssi_signal=-30 frame=%s" % (
+ binascii.hexlify(pkt['frame']), ))
+ hapd.set("ext_mgmt_frame_handling", "0")
+
+ hapd.request("STOP_AP")
+
+ dev[0].request("REMOVE_NETWORK all")
+ dev[0].wait_disconnected()
+
+ dev[0].flush_scan_cache(freq=5180)
+ res = dev[0].request("SCAN_RESULTS")
+ if len(res.splitlines()) > 1:
+ raise Exception("BSS entry should no longer be around")
+
+def test_kernel_bss_leak_deauth(dev, apdev):
+ return _test_kernel_bss_leak(dev, apdev, deauth=True)
+def test_kernel_bss_leak_timeout(dev, apdev):
+ return _test_kernel_bss_leak(dev, apdev, deauth=False)
--
2.9.3
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