# Cipher suite tests # Copyright (c) 2013-2015, Jouni Malinen # # This software may be distributed under the terms of the BSD license. # See README for more details. import time import logging logger = logging.getLogger() import os.path import hwsim_utils import hostapd from utils import HwsimSkip, skip_with_fips from wlantest import Wlantest def check_cipher(dev, ap, cipher): if cipher not in dev.get_capability("pairwise"): raise HwsimSkip("Cipher %s not supported" % cipher) 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 check_group_mgmt_cipher(dev, ap, cipher): wt = Wlantest() wt.flush() wt.add_passphrase("12345678") if cipher not in dev.get_capability("group_mgmt"): raise HwsimSkip("Cipher %s not supported" % cipher) params = { "ssid": "test-wpa2-psk-pmf", "wpa_passphrase": "12345678", "wpa": "2", "ieee80211w": "2", "wpa_key_mgmt": "WPA-PSK-SHA256", "rsn_pairwise": "CCMP", "group_mgmt_cipher": cipher } hapd = hostapd.add_ap(ap['ifname'], params) dev.connect("test-wpa2-psk-pmf", psk="12345678", ieee80211w="2", key_mgmt="WPA-PSK-SHA256", pairwise="CCMP", group="CCMP", scan_freq="2412") hwsim_utils.test_connectivity(dev, hapd) hapd.request("DEAUTHENTICATE ff:ff:ff:ff:ff:ff") dev.wait_disconnected() if wt.get_bss_counter('valid_bip_mmie', ap['bssid']) < 1: raise Exception("No valid BIP MMIE seen") if wt.get_bss_counter('bip_deauth', ap['bssid']) < 1: raise Exception("No valid BIP deauth seen") if cipher == "AES-128-CMAC": group_mgmt = "BIP" else: group_mgmt = cipher res = wt.info_bss('group_mgmt', ap['bssid']).strip() if res != group_mgmt: raise Exception("Unexpected group mgmt cipher: " + res) def test_ap_cipher_tkip(dev, apdev): """WPA2-PSK/TKIP connection""" skip_with_fips(dev[0]) check_cipher(dev[0], apdev[0], "TKIP") def test_ap_cipher_tkip_countermeasures_ap(dev, apdev): """WPA-PSK/TKIP countermeasures (detected by AP)""" skip_with_fips(dev[0]) 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): raise HwsimSkip("tkip_mic_test not supported in mac80211") 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() with open(testfile, "w") as f: f.write(apdev[0]['bssid']) ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1) if ev is not None: raise Exception("Unexpected disconnection on first Michael MIC failure") with open(testfile, "w") as f: f.write("ff:ff:ff:ff:ff:ff") ev = dev[0].wait_disconnected(timeout=10, error="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)""" skip_with_fips(dev[0]) 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): raise HwsimSkip("tkip_mic_test not supported in mac80211") dev[0].connect("tkip-countermeasures", psk="12345678", pairwise="TKIP", group="TKIP", scan_freq="2412") dev[0].dump_monitor() with open(testfile, "w") as f: f.write(dev[0].own_addr()) ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1) if ev is not None: raise Exception("Unexpected disconnection on first Michael MIC failure") with open(testfile, "w") as f: f.write("ff:ff:ff:ff:ff:ff") ev = dev[0].wait_disconnected(timeout=10, error="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""" check_cipher(dev[0], apdev[0], "CCMP") def test_ap_cipher_gcmp(dev, apdev): """WPA2-PSK/GCMP connection""" check_cipher(dev[0], apdev[0], "GCMP") def test_ap_cipher_ccmp_256(dev, apdev): """WPA2-PSK/CCMP-256 connection""" check_cipher(dev[0], apdev[0], "CCMP-256") def test_ap_cipher_gcmp_256(dev, apdev): """WPA2-PSK/GCMP-256 connection""" 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""" skip_with_fips(dev[0]) 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]) def test_ap_cipher_bip(dev, apdev): """WPA2-PSK with BIP""" check_group_mgmt_cipher(dev[0], apdev[0], "AES-128-CMAC") def test_ap_cipher_bip_gmac_128(dev, apdev): """WPA2-PSK with BIP-GMAC-128""" check_group_mgmt_cipher(dev[0], apdev[0], "BIP-GMAC-128") def test_ap_cipher_bip_gmac_256(dev, apdev): """WPA2-PSK with BIP-GMAC-256""" check_group_mgmt_cipher(dev[0], apdev[0], "BIP-GMAC-256") def test_ap_cipher_bip_cmac_256(dev, apdev): """WPA2-PSK with BIP-CMAC-256""" check_group_mgmt_cipher(dev[0], apdev[0], "BIP-CMAC-256")