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tests: Verify RSN preauth with dynamic VLANs

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This change add two new tests to verify hostapd operation when used with
VLANs. Both are based on pmksa_cache_preauth and enable dynamic VLANs,
pmksa_cache_preauth_vlan_used additionally uses a station with VID 1.

Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
This commit is contained in:
Michael Braun 2015-04-10 14:49:45 +02:00 committed by Jouni Malinen
parent c8e6beabb6
commit 515b176e9c
3 changed files with 138 additions and 0 deletions
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1
tests/hwsim/hostapd.wlan3.vlan Normal file
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1 wlan3.1

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tests/hwsim/hostapd.wlan4.vlan Normal file
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1 wlan4.1

136
tests/hwsim/test_pmksa_cache.py
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@ -386,6 +386,142 @@ def test_pmksa_cache_preauth(dev, apdev):
subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'down'])
subprocess.call(['brctl', 'delbr', 'ap-br0'])
def test_pmksa_cache_preauth_vlan_enabled(dev, apdev):
"""RSN pre-authentication to generate PMKSA cache entry (dynamic_vlan optional but station without VLAN set)"""
try:
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params['bridge'] = 'ap-br0'
params['dynamic_vlan'] = '1'
hostapd.add_ap(apdev[0]['ifname'], params)
subprocess.call(['brctl', 'setfd', 'ap-br0', '0'])
subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'up'])
eap_connect(dev[0], apdev[0], "PAX", "pax.user@example.com",
password_hex="0123456789abcdef0123456789abcdef")
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params['bridge'] = 'ap-br0'
params['rsn_preauth'] = '1'
params['rsn_preauth_interfaces'] = 'ap-br0'
params['dynamic_vlan'] = '1'
hostapd.add_ap(apdev[1]['ifname'], params)
bssid1 = apdev[1]['bssid']
dev[0].scan(freq="2412")
success = False
status_seen = False
for i in range(0, 50):
if not status_seen:
status = dev[0].request("STATUS")
if "Pre-authentication EAPOL state machines:" in status:
status_seen = True
time.sleep(0.1)
pmksa = dev[0].get_pmksa(bssid1)
if pmksa:
success = True
break
if not success:
raise Exception("No PMKSA cache entry created from pre-authentication")
if not status_seen:
raise Exception("Pre-authentication EAPOL status was not available")
dev[0].scan(freq="2412")
if "[WPA2-EAP-CCMP-preauth]" not in dev[0].request("SCAN_RESULTS"):
raise Exception("Scan results missing RSN element info")
dev[0].request("ROAM " + bssid1)
ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
"CTRL-EVENT-CONNECTED"], timeout=10)
if ev is None:
raise Exception("Roaming with the AP timed out")
if "CTRL-EVENT-EAP-STARTED" in ev:
raise Exception("Unexpected EAP exchange")
pmksa2 = dev[0].get_pmksa(bssid1)
if pmksa2 is None:
raise Exception("No PMKSA cache entry")
if pmksa['pmkid'] != pmksa2['pmkid']:
raise Exception("Unexpected PMKID change")
finally:
subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'down'])
subprocess.call(['brctl', 'delbr', 'ap-br0'])
def test_pmksa_cache_preauth_vlan_used(dev, apdev):
"""RSN pre-authentication to generate PMKSA cache entry (station with VLAN set)"""
try:
subprocess.call(['brctl', 'addbr', 'brvlan1'])
subprocess.call(['brctl', 'setfd', 'brvlan1', '0'])
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params['bridge'] = 'ap-br0'
params['dynamic_vlan'] = '1'
params['vlan_file'] = 'hostapd.wlan3.vlan'
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
subprocess.call(['brctl', 'setfd', 'ap-br0', '0'])
subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'up'])
eap_connect(dev[0], apdev[0], "PAX", "vlan1",
password_hex="0123456789abcdef0123456789abcdef")
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params['bridge'] = 'ap-br0'
params['rsn_preauth'] = '1'
params['rsn_preauth_interfaces'] = 'brvlan1'
params['dynamic_vlan'] = '1'
params['vlan_file'] = 'hostapd.wlan4.vlan'
hostapd.add_ap(apdev[1]['ifname'], params)
bssid1 = apdev[1]['bssid']
dev[0].scan(freq="2412")
success = False
status_seen = False
for i in range(0, 50):
if not status_seen:
status = dev[0].request("STATUS")
if "Pre-authentication EAPOL state machines:" in status:
status_seen = True
time.sleep(0.1)
pmksa = dev[0].get_pmksa(bssid1)
if pmksa:
success = True
break
if not success:
raise Exception("No PMKSA cache entry created from pre-authentication")
if not status_seen:
raise Exception("Pre-authentication EAPOL status was not available")
dev[0].scan(freq="2412")
if "[WPA2-EAP-CCMP-preauth]" not in dev[0].request("SCAN_RESULTS"):
raise Exception("Scan results missing RSN element info")
dev[0].request("ROAM " + bssid1)
ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED",
"CTRL-EVENT-CONNECTED"], timeout=10)
if ev is None:
raise Exception("Roaming with the AP timed out")
if "CTRL-EVENT-EAP-STARTED" in ev:
raise Exception("Unexpected EAP exchange")
pmksa2 = dev[0].get_pmksa(bssid1)
if pmksa2 is None:
raise Exception("No PMKSA cache entry")
if pmksa['pmkid'] != pmksa2['pmkid']:
raise Exception("Unexpected PMKID change")
# Disconnect the STA from both APs to avoid forceful ifdown by the
# test script on a VLAN that this has an associated STA. That used to
# trigger a mac80211 warning.
dev[0].request("DISCONNECT")
hapd.request("DISABLE")
finally:
subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'down'],
stderr=open('/dev/null', 'w'))
subprocess.call(['ip', 'link', 'set', 'dev', 'brvlan1', 'down'])
subprocess.call(['ip', 'link', 'set', 'dev', 'wlan3.1', 'down'],
stderr=open('/dev/null', 'w'))
subprocess.call(['ip', 'link', 'set', 'dev', 'wlan4.1', 'down'],
stderr=open('/dev/null', 'w'))
subprocess.call(['brctl', 'delif', 'brvlan1', 'wlan3.1'],
stderr=open('/dev/null', 'w'))
subprocess.call(['brctl', 'delif', 'brvlan1', 'wlan4.1'],
stderr=open('/dev/null', 'w'))
subprocess.call(['brctl', 'delbr', 'ap-br0'],
stderr=open('/dev/null', 'w'))
subprocess.call(['brctl', 'delbr', 'brvlan1'])
def test_pmksa_cache_disabled(dev, apdev):
"""PMKSA cache disabling on AP"""
params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache")