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tests: MAC_RAND_SCAN with valid and invalid arguments

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This verifies that random MAC address is used as requested in Probe
Request frames.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2015-01-04 23:05:47 +02:00
parent 8b48e32006
commit 8aeb6e3dbc
1 changed files with 75 additions and 1 deletions
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76
tests/hwsim/test_scan.py
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@ -1,5 +1,5 @@
# Scanning tests
# Copyright (c) 2013, Jouni Malinen <j@w1.fi>
# Copyright (c) 2013-2015, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
@ -669,3 +669,77 @@ def _test_scan_hidden_many(dev, apdev):
dev[0].wait_connected(timeout=30)
dev[0].request("REMOVE_NETWORK all")
hapd.disable()
def test_scan_random_mac(dev, apdev, params):
"""Random MAC address in scans"""
try:
_test_scan_random_mac(dev, apdev, params)
finally:
dev[0].request("MAC_RAND_SCAN all enable=0")
def _test_scan_random_mac(dev, apdev, params):
hostapd.add_ap(apdev[0]['ifname'], { "ssid": "test-scan" })
bssid = apdev[0]['bssid']
tests = [ "",
"addr=foo",
"mask=foo",
"enable=1",
"all enable=1 mask=00:11:22:33:44:55",
"all enable=1 addr=00:11:22:33:44:55",
"all enable=1 addr=01:11:22:33:44:55 mask=ff:ff:ff:ff:ff:ff",
"all enable=1 addr=00:11:22:33:44:55 mask=fe:ff:ff:ff:ff:ff",
"enable=2 scan sched pno all",
"pno enable=1",
"all enable=2",
"foo" ]
for args in tests:
if "FAIL" not in dev[0].request("MAC_RAND_SCAN " + args):
raise Exception("Invalid MAC_RAND_SCAN accepted: " + args)
if dev[0].get_driver_status_field('capa.mac_addr_rand_scan_supported') != '1':
logger.info("Driver does not support random MAC address for scanning")
raise Exception("hwsim-SKIP")
tests = [ "all enable=1",
"all enable=1 addr=f2:11:22:33:44:55 mask=ff:ff:ff:ff:ff:ff",
"all enable=1 addr=f2:11:33:00:00:00 mask=ff:ff:ff:00:00:00" ]
for args in tests:
dev[0].request("MAC_RAND_SCAN " + args)
dev[0].scan_for_bss(bssid, freq=2412, force_scan=True)
try:
arg = [ "tshark",
"-r", os.path.join(params['logdir'], "hwsim0.pcapng"),
"-Y", "wlan.fc.type_subtype == 4",
"-Tfields", "-e", "wlan.ta" ]
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:
(out,err) = cmd.communicate()
res = cmd.wait()
if res == 1:
arg[3] = '-R'
cmd = subprocess.Popen(arg, stdout=subprocess.PIPE,
stderr=open('/dev/null', 'w'))
(out,err) = cmd.communicate()
res = cmd.wait()
addr = out.splitlines()
logger.info("Probe Request frames seen from: " + str(addr))
if dev[0].own_addr() in addr:
raise Exception("Real address used to transmit Probe Request frame")
if "f2:11:22:33:44:55" not in addr:
raise Exception("Fully configured random address not seen")
found = False
for a in addr:
if a.startswith('f2:11:33'):
found = True
break
if not found:
raise Exception("Fixed OUI random address not seen")