hostap/tests/hwsim/test_ap_ciphers.py

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# Cipher suite tests
# Copyright (c) 2013, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import time
import subprocess
import logging
logger = logging.getLogger()
import os.path
import hwsim_utils
import hostapd
def check_cipher(dev, ap, cipher):
if cipher not in dev.get_capability("pairwise"):
return "skip"
params = { "ssid": "test-wpa2-psk",
"wpa_passphrase": "12345678",
"wpa": "2",
"wpa_key_mgmt": "WPA-PSK",
"rsn_pairwise": cipher }
hapd = hostapd.add_ap(ap['ifname'], params)
dev.connect("test-wpa2-psk", psk="12345678",
pairwise=cipher, group=cipher, scan_freq="2412")
hwsim_utils.test_connectivity(dev, hapd)
def test_ap_cipher_tkip(dev, apdev):
"""WPA2-PSK/TKIP connection"""
return check_cipher(dev[0], apdev[0], "TKIP")
def test_ap_cipher_tkip_countermeasures_ap(dev, apdev):
"""WPA-PSK/TKIP countermeasures (detected by AP)"""
testfile = "/sys/kernel/debug/ieee80211/%s/netdev:%s/tkip_mic_test" % (dev[0].get_driver_status_field("phyname"), dev[0].ifname)
if not os.path.exists(testfile):
return "skip"
params = { "ssid": "tkip-countermeasures",
"wpa_passphrase": "12345678",
"wpa": "1",
"wpa_key_mgmt": "WPA-PSK",
"wpa_pairwise": "TKIP" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("tkip-countermeasures", psk="12345678",
pairwise="TKIP", group="TKIP", scan_freq="2412")
dev[0].dump_monitor()
cmd = subprocess.Popen(["sudo", "tee", testfile],
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
cmd.stdin.write(apdev[0]['bssid'])
cmd.stdin.close()
cmd.stdout.read()
cmd.stdout.close()
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection on first Michael MIC failure")
cmd = subprocess.Popen(["sudo", "tee", testfile],
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
cmd.stdin.write("ff:ff:ff:ff:ff:ff")
cmd.stdin.close()
cmd.stdout.read()
cmd.stdout.close()
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=10)
if ev is None:
raise Exception("No disconnection after two Michael MIC failures")
if "reason=14" not in ev:
raise Exception("Unexpected disconnection reason: " + ev)
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected connection during TKIP countermeasures")
def test_ap_cipher_tkip_countermeasures_sta(dev, apdev):
"""WPA-PSK/TKIP countermeasures (detected by STA)"""
params = { "ssid": "tkip-countermeasures",
"wpa_passphrase": "12345678",
"wpa": "1",
"wpa_key_mgmt": "WPA-PSK",
"wpa_pairwise": "TKIP" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
testfile = "/sys/kernel/debug/ieee80211/%s/netdev:%s/tkip_mic_test" % (hapd.get_driver_status_field("phyname"), apdev[0]['ifname'])
if not os.path.exists(testfile):
return "skip"
dev[0].connect("tkip-countermeasures", psk="12345678",
pairwise="TKIP", group="TKIP", scan_freq="2412")
dev[0].dump_monitor()
cmd = subprocess.Popen(["sudo", "tee", testfile],
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
cmd.stdin.write(dev[0].p2p_dev_addr())
cmd.stdin.close()
cmd.stdout.read()
cmd.stdout.close()
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection on first Michael MIC failure")
cmd = subprocess.Popen(["sudo", "tee", testfile],
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
cmd.stdin.write("ff:ff:ff:ff:ff:ff")
cmd.stdin.close()
cmd.stdout.read()
cmd.stdout.close()
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=10)
if ev is None:
raise Exception("No disconnection after two Michael MIC failures")
if "reason=14 locally_generated=1" not in ev:
raise Exception("Unexpected disconnection reason: " + ev)
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected connection during TKIP countermeasures")
def test_ap_cipher_ccmp(dev, apdev):
"""WPA2-PSK/CCMP connection"""
return check_cipher(dev[0], apdev[0], "CCMP")
def test_ap_cipher_gcmp(dev, apdev):
"""WPA2-PSK/GCMP connection"""
return check_cipher(dev[0], apdev[0], "GCMP")
def test_ap_cipher_ccmp_256(dev, apdev):
"""WPA2-PSK/CCMP-256 connection"""
return check_cipher(dev[0], apdev[0], "CCMP-256")
def test_ap_cipher_gcmp_256(dev, apdev):
"""WPA2-PSK/GCMP-256 connection"""
return check_cipher(dev[0], apdev[0], "GCMP-256")
def test_ap_cipher_mixed_wpa_wpa2(dev, apdev):
"""WPA2-PSK/CCMP/ and WPA-PSK/TKIP mixed configuration"""
ssid = "test-wpa-wpa2-psk"
passphrase = "12345678"
params = { "ssid": ssid,
"wpa_passphrase": passphrase,
"wpa": "3",
"wpa_key_mgmt": "WPA-PSK",
"rsn_pairwise": "CCMP",
"wpa_pairwise": "TKIP" }
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect(ssid, psk=passphrase, proto="WPA2",
pairwise="CCMP", group="TKIP", scan_freq="2412")
status = dev[0].get_status()
if status['key_mgmt'] != 'WPA2-PSK':
raise Exception("Incorrect key_mgmt reported")
if status['pairwise_cipher'] != 'CCMP':
raise Exception("Incorrect pairwise_cipher reported")
if status['group_cipher'] != 'TKIP':
raise Exception("Incorrect group_cipher reported")
bss = dev[0].get_bss(apdev[0]['bssid'])
if bss['ssid'] != ssid:
raise Exception("Unexpected SSID in the BSS entry")
if "[WPA-PSK-TKIP]" not in bss['flags']:
raise Exception("Missing BSS flag WPA-PSK-TKIP")
if "[WPA2-PSK-CCMP]" not in bss['flags']:
raise Exception("Missing BSS flag WPA2-PSK-CCMP")
hwsim_utils.test_connectivity(dev[0], hapd)
dev[1].connect(ssid, psk=passphrase, proto="WPA",
pairwise="TKIP", group="TKIP", scan_freq="2412")
status = dev[1].get_status()
if status['key_mgmt'] != 'WPA-PSK':
raise Exception("Incorrect key_mgmt reported")
if status['pairwise_cipher'] != 'TKIP':
raise Exception("Incorrect pairwise_cipher reported")
if status['group_cipher'] != 'TKIP':
raise Exception("Incorrect group_cipher reported")
hwsim_utils.test_connectivity(dev[1], hapd)
hwsim_utils.test_connectivity(dev[0], dev[1])