| # WPA2-Enterprise PMKSA caching tests |
| # Copyright (c) 2013-2014, Jouni Malinen <j@w1.fi> |
| # |
| # This software may be distributed under the terms of the BSD license. |
| # See README for more details. |
| |
| import logging |
| logger = logging.getLogger() |
| import subprocess |
| import time |
| |
| import hostapd |
| from wpasupplicant import WpaSupplicant |
| from test_ap_eap import eap_connect |
| |
| def test_pmksa_cache_on_roam_back(dev, apdev): |
| """PMKSA cache to skip EAP on reassociation back to same AP""" |
| params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache") |
| hostapd.add_ap(apdev[0]['ifname'], params) |
| bssid = apdev[0]['bssid'] |
| dev[0].connect("test-pmksa-cache", proto="RSN", key_mgmt="WPA-EAP", |
| eap="GPSK", identity="gpsk user", |
| password="abcdefghijklmnop0123456789abcdef", |
| scan_freq="2412") |
| pmksa = dev[0].get_pmksa(bssid) |
| if pmksa is None: |
| raise Exception("No PMKSA cache entry created") |
| if pmksa['opportunistic'] != '0': |
| raise Exception("Unexpected opportunistic PMKSA cache entry") |
| |
| hostapd.add_ap(apdev[1]['ifname'], params) |
| bssid2 = apdev[1]['bssid'] |
| |
| dev[0].dump_monitor() |
| logger.info("Roam to AP2") |
| # It can take some time for the second AP to become ready to reply to Probe |
| # Request frames especially under heavy CPU load, so allow couple of rounds |
| # of scanning to avoid reporting errors incorrectly just because of scans |
| # not having seen the target AP. |
| for i in range(0, 10): |
| dev[0].scan(freq="2412") |
| if dev[0].get_bss(bssid2) is not None: |
| break |
| logger.info("Scan again to find target AP") |
| dev[0].request("ROAM " + bssid2) |
| ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=10) |
| if ev is None: |
| raise Exception("EAP success timed out") |
| ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=10) |
| if ev is None: |
| raise Exception("Roaming with the AP timed out") |
| pmksa2 = dev[0].get_pmksa(bssid2) |
| if pmksa2 is None: |
| raise Exception("No PMKSA cache entry found") |
| if pmksa2['opportunistic'] != '0': |
| raise Exception("Unexpected opportunistic PMKSA cache entry") |
| |
| dev[0].dump_monitor() |
| logger.info("Roam back to AP1") |
| dev[0].scan(freq="2412") |
| dev[0].request("ROAM " + bssid) |
| 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") |
| pmksa1b = dev[0].get_pmksa(bssid) |
| if pmksa1b is None: |
| raise Exception("No PMKSA cache entry found") |
| if pmksa['pmkid'] != pmksa1b['pmkid']: |
| raise Exception("Unexpected PMKID change for AP1") |
| |
| def test_pmksa_cache_opportunistic_only_on_sta(dev, apdev): |
| """Opportunistic PMKSA caching enabled only on station""" |
| params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache") |
| hostapd.add_ap(apdev[0]['ifname'], params) |
| bssid = apdev[0]['bssid'] |
| dev[0].connect("test-pmksa-cache", proto="RSN", key_mgmt="WPA-EAP", |
| eap="GPSK", identity="gpsk user", |
| password="abcdefghijklmnop0123456789abcdef", okc=True, |
| scan_freq="2412") |
| pmksa = dev[0].get_pmksa(bssid) |
| if pmksa is None: |
| raise Exception("No PMKSA cache entry created") |
| if pmksa['opportunistic'] != '0': |
| raise Exception("Unexpected opportunistic PMKSA cache entry") |
| |
| hostapd.add_ap(apdev[1]['ifname'], params) |
| bssid2 = apdev[1]['bssid'] |
| |
| dev[0].dump_monitor() |
| logger.info("Roam to AP2") |
| dev[0].scan(freq="2412") |
| dev[0].request("ROAM " + bssid2) |
| ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=10) |
| if ev is None: |
| raise Exception("EAP success timed out") |
| ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=10) |
| if ev is None: |
| raise Exception("Roaming with the AP timed out") |
| pmksa2 = dev[0].get_pmksa(bssid2) |
| if pmksa2 is None: |
| raise Exception("No PMKSA cache entry found") |
| if pmksa2['opportunistic'] != '0': |
| raise Exception("Unexpected opportunistic PMKSA cache entry") |
| |
| dev[0].dump_monitor() |
| logger.info("Roam back to AP1") |
| dev[0].scan(freq="2412") |
| dev[0].request("ROAM " + bssid) |
| 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") |
| pmksa1b = dev[0].get_pmksa(bssid) |
| if pmksa1b is None: |
| raise Exception("No PMKSA cache entry found") |
| if pmksa['pmkid'] != pmksa1b['pmkid']: |
| raise Exception("Unexpected PMKID change for AP1") |
| |
| def test_pmksa_cache_opportunistic(dev, apdev): |
| """Opportunistic PMKSA caching""" |
| params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache") |
| params['okc'] = "1" |
| hostapd.add_ap(apdev[0]['ifname'], params) |
| bssid = apdev[0]['bssid'] |
| dev[0].connect("test-pmksa-cache", proto="RSN", key_mgmt="WPA-EAP", |
| eap="GPSK", identity="gpsk user", |
| password="abcdefghijklmnop0123456789abcdef", okc=True, |
| scan_freq="2412") |
| pmksa = dev[0].get_pmksa(bssid) |
| if pmksa is None: |
| raise Exception("No PMKSA cache entry created") |
| if pmksa['opportunistic'] != '0': |
| raise Exception("Unexpected opportunistic PMKSA cache entry") |
| |
| hostapd.add_ap(apdev[1]['ifname'], params) |
| bssid2 = apdev[1]['bssid'] |
| |
| dev[0].dump_monitor() |
| logger.info("Roam to AP2") |
| dev[0].scan(freq="2412") |
| dev[0].request("ROAM " + bssid2) |
| 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(bssid2) |
| if pmksa2 is None: |
| raise Exception("No PMKSA cache entry created") |
| |
| dev[0].dump_monitor() |
| logger.info("Roam back to AP1") |
| dev[0].scan(freq="2412") |
| dev[0].request("ROAM " + bssid) |
| 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") |
| |
| pmksa1b = dev[0].get_pmksa(bssid) |
| if pmksa1b is None: |
| raise Exception("No PMKSA cache entry found") |
| if pmksa['pmkid'] != pmksa1b['pmkid']: |
| raise Exception("Unexpected PMKID change for AP1") |
| |
| def test_pmksa_cache_opportunistic_connect(dev, apdev): |
| """Opportunistic PMKSA caching with connect API""" |
| params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache") |
| params['okc'] = "1" |
| hostapd.add_ap(apdev[0]['ifname'], params) |
| bssid = apdev[0]['bssid'] |
| wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5') |
| wpas.interface_add("wlan5", drv_params="force_connect_cmd=1") |
| wpas.connect("test-pmksa-cache", proto="RSN", key_mgmt="WPA-EAP", |
| eap="GPSK", identity="gpsk user", |
| password="abcdefghijklmnop0123456789abcdef", okc=True, |
| scan_freq="2412") |
| pmksa = wpas.get_pmksa(bssid) |
| if pmksa is None: |
| raise Exception("No PMKSA cache entry created") |
| if pmksa['opportunistic'] != '0': |
| raise Exception("Unexpected opportunistic PMKSA cache entry") |
| |
| hostapd.add_ap(apdev[1]['ifname'], params) |
| bssid2 = apdev[1]['bssid'] |
| |
| wpas.dump_monitor() |
| logger.info("Roam to AP2") |
| wpas.scan(freq="2412") |
| wpas.request("ROAM " + bssid2) |
| ev = wpas.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 = wpas.get_pmksa(bssid2) |
| if pmksa2 is None: |
| raise Exception("No PMKSA cache entry created") |
| |
| wpas.dump_monitor() |
| logger.info("Roam back to AP1") |
| wpas.scan(freq="2412") |
| wpas.request("ROAM " + bssid) |
| ev = wpas.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") |
| |
| pmksa1b = wpas.get_pmksa(bssid) |
| if pmksa1b is None: |
| raise Exception("No PMKSA cache entry found") |
| if pmksa['pmkid'] != pmksa1b['pmkid']: |
| raise Exception("Unexpected PMKID change for AP1") |
| |
| def test_pmksa_cache_expiration(dev, apdev): |
| """PMKSA cache entry expiration""" |
| params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache") |
| hostapd.add_ap(apdev[0]['ifname'], params) |
| bssid = apdev[0]['bssid'] |
| dev[0].request("SET dot11RSNAConfigPMKLifetime 10") |
| dev[0].connect("test-pmksa-cache", proto="RSN", key_mgmt="WPA-EAP", |
| eap="GPSK", identity="gpsk user", |
| password="abcdefghijklmnop0123456789abcdef", |
| scan_freq="2412") |
| pmksa = dev[0].get_pmksa(bssid) |
| if pmksa is None: |
| raise Exception("No PMKSA cache entry created") |
| logger.info("Wait for PMKSA cache entry to expire") |
| ev = dev[0].wait_event(["WPA: Key negotiation completed", |
| "CTRL-EVENT-DISCONNECTED"], timeout=15) |
| if ev is None: |
| raise Exception("No EAP reauthentication seen") |
| if "CTRL-EVENT-DISCONNECTED" in ev: |
| raise Exception("Unexpected disconnection") |
| pmksa2 = dev[0].get_pmksa(bssid) |
| if pmksa['pmkid'] == pmksa2['pmkid']: |
| raise Exception("PMKID did not change") |
| |
| def test_pmksa_cache_expiration_disconnect(dev, apdev): |
| """PMKSA cache entry expiration (disconnect)""" |
| params = hostapd.wpa2_eap_params(ssid="test-pmksa-cache") |
| hapd = hostapd.add_ap(apdev[0]['ifname'], params) |
| bssid = apdev[0]['bssid'] |
| dev[0].request("SET dot11RSNAConfigPMKLifetime 2") |
| dev[0].request("SET dot11RSNAConfigPMKReauthThreshold 100") |
| dev[0].connect("test-pmksa-cache", proto="RSN", key_mgmt="WPA-EAP", |
| eap="GPSK", identity="gpsk user", |
| password="abcdefghijklmnop0123456789abcdef", |
| scan_freq="2412") |
| pmksa = dev[0].get_pmksa(bssid) |
| if pmksa is None: |
| raise Exception("No PMKSA cache entry created") |
| hapd.request("SET auth_server_shared_secret incorrect") |
| logger.info("Wait for PMKSA cache entry to expire") |
| ev = dev[0].wait_event(["WPA: Key negotiation completed", |
| "CTRL-EVENT-DISCONNECTED"], timeout=15) |
| if ev is None: |
| raise Exception("No EAP reauthentication seen") |
| if "CTRL-EVENT-DISCONNECTED" not in ev: |
| raise Exception("Missing disconnection") |
| hapd.request("SET auth_server_shared_secret radius") |
| ev = dev[0].wait_event(["WPA: Key negotiation completed"], timeout=15) |
| if ev is None: |
| raise Exception("No EAP reauthentication seen") |
| pmksa2 = dev[0].get_pmksa(bssid) |
| if pmksa['pmkid'] == pmksa2['pmkid']: |
| raise Exception("PMKID did not change") |
| |
| def test_pmksa_cache_and_cui(dev, apdev): |
| """PMKSA cache and Chargeable-User-Identity""" |
| params = hostapd.wpa2_eap_params(ssid="cui") |
| params['radius_request_cui'] = '1' |
| params['acct_server_addr'] = "127.0.0.1" |
| params['acct_server_port'] = "1813" |
| params['acct_server_shared_secret'] = "radius" |
| hostapd.add_ap(apdev[0]['ifname'], params) |
| bssid = apdev[0]['bssid'] |
| dev[0].connect("cui", proto="RSN", key_mgmt="WPA-EAP", |
| eap="GPSK", identity="gpsk-cui", |
| password="abcdefghijklmnop0123456789abcdef", |
| scan_freq="2412") |
| pmksa = dev[0].get_pmksa(bssid) |
| if pmksa is None: |
| raise Exception("No PMKSA cache entry created") |
| |
| dev[0].dump_monitor() |
| logger.info("Disconnect and reconnect to the same AP") |
| dev[0].request("DISCONNECT") |
| dev[0].request("RECONNECT") |
| ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED", |
| "CTRL-EVENT-CONNECTED"], timeout=10) |
| if ev is None: |
| raise Exception("Reconnect timed out") |
| if "CTRL-EVENT-EAP-STARTED" in ev: |
| raise Exception("Unexpected EAP exchange") |
| pmksa1b = dev[0].get_pmksa(bssid) |
| if pmksa1b is None: |
| raise Exception("No PMKSA cache entry found") |
| if pmksa['pmkid'] != pmksa1b['pmkid']: |
| raise Exception("Unexpected PMKID change for AP1") |
| |
| dev[0].request("REAUTHENTICATE") |
| ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=10) |
| if ev is None: |
| raise Exception("EAP success timed out") |
| for i in range(0, 20): |
| state = dev[0].get_status_field("wpa_state") |
| if state == "COMPLETED": |
| break |
| time.sleep(0.1) |
| if state != "COMPLETED": |
| raise Exception("Reauthentication did not complete") |
| |
| def test_pmksa_cache_preauth(dev, apdev): |
| """RSN pre-authentication to generate PMKSA cache entry""" |
| try: |
| params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap") |
| params['bridge'] = 'ap-br0' |
| hostapd.add_ap(apdev[0]['ifname'], params) |
| subprocess.call(['sudo', 'brctl', 'setfd', 'ap-br0', '0']) |
| subprocess.call(['sudo', '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' |
| 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(['sudo', 'ip', 'link', 'set', 'dev', 'ap-br0', 'down']) |
| subprocess.call(['sudo', 'brctl', 'delbr', 'ap-br0']) |
