tests: EAP Re-authentication Protocol (ERP)

This tests RP EAP-Initiate/Re-auth-Start transmission, ERP key
derivation, and EAP-Initiate/Re-auth + EAP-Finish/Re-auth exchange and
rMSK derivation.

Signed-off-by: Jouni Malinen <j@w1.fi>

tests/hwsim/auth_serv/eap_user.conf

@@ -10,6 +10,20 @@
 "osen@example.com"	WFA-UNAUTH-TLS
 "unauth-tls"	UNAUTH-TLS
 
+"erp-fast@example.com"	FAST
+"erp-fast@example.com"	GTC	"password"	[2]
+"erp-gpsk@example.com"	GPSK	"abcdefghijklmnop0123456789abcdef"
+"erp-eke@example.com"	EKE	"hello"
+"erp-pax@example.com"	PAX	0123456789abcdef0123456789abcdef
+"erp-peap@example.com"	PEAP
+"erp-peap@example.com"	MSCHAPV2	"password"	[2]
+"erp-psk@example.com"	PSK	0123456789abcdef0123456789abcdef
+"erp-pwd@example.com"	PWD	"secret password"
+"erp-sake@example.com"	SAKE	0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef
+"erp-tls@example.com"	TLS
+"erp-ttls@example.com"	TTLS
+"erp-ttls@example.com"	TTLS-PAP	"password"	[2]
+
 "vlan1"	PAX	0123456789abcdef0123456789abcdef
 radius_accept_attr=64:d:13
 radius_accept_attr=65:d:6

tests/hwsim/example-hostapd.config

@@ -10,6 +10,7 @@ CONFIG_RSN_PREAUTH=y
 CONFIG_TLS=openssl
 
 CONFIG_EAP=y
+CONFIG_ERP=y
 CONFIG_EAP_MD5=y
 CONFIG_EAP_TLS=y
 CONFIG_EAP_MSCHAPV2=y

tests/hwsim/example-wpa_supplicant.config

@@ -7,6 +7,7 @@ CONFIG_TLS=openssl
 
 CONFIG_IEEE8021X_EAPOL=y
 
+CONFIG_ERP=y
 CONFIG_EAP_MD5=y
 CONFIG_MSCHAPV2=y
 CONFIG_EAP_TLS=y

tests/hwsim/test_erp.py

@@ -0,0 +1,191 @@
+# EAP Re-authentication Protocol (ERP) tests
+# Copyright (c) 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 hostapd
+from test_ap_eap import int_eap_server_params
+
+def test_erp_initiate_reauth_start(dev, apdev):
+    """Authenticator sending EAP-Initiate/Re-auth-Start, but ERP disabled on peer"""
+    params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
+    params['erp_send_reauth_start'] = '1'
+    params['erp_domain'] = 'example.com'
+    hapd = hostapd.add_ap(apdev[0]['ifname'], params)
+
+    dev[0].request("ERP_FLUSH")
+    dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP",
+                   eap="PAX", identity="pax.user@example.com",
+                   password_hex="0123456789abcdef0123456789abcdef",
+                   scan_freq="2412")
+
+def test_erp_enabled_on_server(dev, apdev):
+    """ERP enabled on internal EAP server, but disabled on peer"""
+    params = int_eap_server_params()
+    params['erp_send_reauth_start'] = '1'
+    params['erp_domain'] = 'example.com'
+    params['eap_server_erp'] = '1'
+    hapd = hostapd.add_ap(apdev[0]['ifname'], params)
+
+    dev[0].request("ERP_FLUSH")
+    dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP",
+                   eap="PAX", identity="pax.user@example.com",
+                   password_hex="0123456789abcdef0123456789abcdef",
+                   scan_freq="2412")
+
+def test_erp(dev, apdev):
+    """ERP enabled on server and peer"""
+    capab = dev[0].get_capability("erp")
+    if not capab or 'ERP' not in capab:
+        return "skip"
+    params = int_eap_server_params()
+    params['erp_send_reauth_start'] = '1'
+    params['erp_domain'] = 'example.com'
+    params['eap_server_erp'] = '1'
+    params['disable_pmksa_caching'] = '1'
+    hapd = hostapd.add_ap(apdev[0]['ifname'], params)
+
+    dev[0].request("ERP_FLUSH")
+    dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP",
+                   eap="PSK", identity="psk.user@example.com",
+                   password_hex="0123456789abcdef0123456789abcdef",
+                   erp="1", scan_freq="2412")
+    for i in range(3):
+        dev[0].request("DISCONNECT")
+        ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=15)
+        if ev is None:
+            raise Exception("Disconnection timed out")
+        dev[0].request("RECONNECT")
+        ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
+        if ev is None:
+            raise Exception("EAP success timed out")
+        if "EAP re-authentication completed successfully" not in ev:
+            raise Exception("Did not use ERP")
+        ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=15)
+        if ev is None:
+            raise Exception("Reconnection timed out")
+
+def start_erp_as(apdev):
+    params = { "ssid": "as", "beacon_int": "2000",
+               "radius_server_clients": "auth_serv/radius_clients.conf",
+               "radius_server_auth_port": '18128',
+               "eap_server": "1",
+               "eap_user_file": "auth_serv/eap_user.conf",
+               "ca_cert": "auth_serv/ca.pem",
+               "server_cert": "auth_serv/server.pem",
+               "private_key": "auth_serv/server.key",
+               "eap_sim_db": "unix:/tmp/hlr_auc_gw.sock",
+               "dh_file": "auth_serv/dh.conf",
+               "pac_opaque_encr_key": "000102030405060708090a0b0c0d0e0f",
+               "eap_fast_a_id": "101112131415161718191a1b1c1d1e1f",
+               "eap_fast_a_id_info": "test server",
+               "eap_server_erp": "1",
+               "erp_domain": "example.com" }
+    hostapd.add_ap(apdev['ifname'], params)
+
+def test_erp_radius(dev, apdev):
+    """ERP enabled on RADIUS server and peer"""
+    capab = dev[0].get_capability("erp")
+    if not capab or 'ERP' not in capab:
+        return "skip"
+    start_erp_as(apdev[1])
+    params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
+    params['auth_server_port'] = "18128"
+    params['erp_send_reauth_start'] = '1'
+    params['erp_domain'] = 'example.com'
+    params['disable_pmksa_caching'] = '1'
+    hapd = hostapd.add_ap(apdev[0]['ifname'], params)
+
+    dev[0].request("ERP_FLUSH")
+    dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP",
+                   eap="PSK", identity="psk.user@example.com",
+                   password_hex="0123456789abcdef0123456789abcdef",
+                   erp="1", scan_freq="2412")
+    for i in range(3):
+        dev[0].request("DISCONNECT")
+        ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=15)
+        if ev is None:
+            raise Exception("Disconnection timed out")
+        dev[0].request("RECONNECT")
+        ev = dev[0].wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
+        if ev is None:
+            raise Exception("EAP success timed out")
+        if "EAP re-authentication completed successfully" not in ev:
+            raise Exception("Did not use ERP")
+        ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=15)
+        if ev is None:
+            raise Exception("Reconnection timed out")
+
+def erp_test(dev, hapd, **kwargs):
+    hapd.dump_monitor()
+    dev.dump_monitor()
+    dev.request("ERP_FLUSH")
+    id = dev.connect("test-wpa2-eap", key_mgmt="WPA-EAP", erp="1",
+                     scan_freq="2412", **kwargs)
+    dev.request("DISCONNECT")
+    ev = dev.wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=15)
+    if ev is None:
+        raise Exception("Disconnection timed out")
+    hapd.dump_monitor()
+    dev.request("RECONNECT")
+    ev = dev.wait_event(["CTRL-EVENT-EAP-SUCCESS"], timeout=15)
+    if ev is None:
+        raise Exception("EAP success timed out")
+    if "EAP re-authentication completed successfully" not in ev:
+        raise Exception("Did not use ERP")
+    ev = dev.wait_event(["CTRL-EVENT-CONNECTED"], timeout=15)
+    if ev is None:
+        raise Exception("Reconnection timed out")
+    ev = hapd.wait_event([ "AP-STA-CONNECTED" ], timeout=5)
+    if ev is None:
+        raise Exception("No connection event received from hostapd")
+    dev.request("DISCONNECT")
+
+def test_erp_radius_eap_methods(dev, apdev):
+    """ERP enabled on RADIUS server and peer"""
+    capab = dev[0].get_capability("erp")
+    if not capab or 'ERP' not in capab:
+        return "skip"
+    start_erp_as(apdev[1])
+    params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
+    params['auth_server_port'] = "18128"
+    params['erp_send_reauth_start'] = '1'
+    params['erp_domain'] = 'example.com'
+    params['disable_pmksa_caching'] = '1'
+    hapd = hostapd.add_ap(apdev[0]['ifname'], params)
+
+    erp_test(dev[0], hapd, eap="AKA", identity="0232010000000000@example.com",
+             password="90dca4eda45b53cf0f12d7c9c3bc6a89:cb9cccc4b9258e6dca4760379fb82581:000000000123")
+    erp_test(dev[0], hapd, eap="AKA'", identity="6555444333222111@example.com",
+             password="5122250214c33e723a5dd523fc145fc0:981d464c7c52eb6e5036234984ad0bcf:000000000123")
+    # TODO: EKE getSession
+    #erp_test(dev[0], hapd, eap="EKE", identity="erp-eke@example.com",
+    #         password="hello")
+    erp_test(dev[0], hapd, eap="FAST", identity="erp-fast@example.com",
+             password="password", ca_cert="auth_serv/ca.pem", phase2="auth=GTC",
+             phase1="fast_provisioning=2", pac_file="blob://fast_pac_auth_erp")
+    erp_test(dev[0], hapd, eap="GPSK", identity="erp-gpsk@example.com",
+             password="abcdefghijklmnop0123456789abcdef")
+    erp_test(dev[0], hapd, eap="PAX", identity="erp-pax@example.com",
+             password_hex="0123456789abcdef0123456789abcdef")
+    # TODO: PEAP (EMSK)
+    #erp_test(dev[0], hapd, eap="PEAP", identity="erp-peap@example.com",
+    #         password="password", ca_cert="auth_serv/ca.pem",
+    #         phase2="auth=MSCHAPV2")
+    erp_test(dev[0], hapd, eap="PSK", identity="erp-psk@example.com",
+             password_hex="0123456789abcdef0123456789abcdef")
+    erp_test(dev[0], hapd, eap="PWD", identity="erp-pwd@example.com",
+             password="secret password")
+    erp_test(dev[0], hapd, eap="SAKE", identity="erp-sake@example.com",
+             password_hex="0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef")
+    erp_test(dev[0], hapd, eap="SIM", identity="1232010000000000@example.com",
+             password="90dca4eda45b53cf0f12d7c9c3bc6a89:cb9cccc4b9258e6dca4760379fb82581")
+    erp_test(dev[0], hapd, eap="TLS", identity="erp-tls@example.com",
+             ca_cert="auth_serv/ca.pem", client_cert="auth_serv/user.pem",
+             private_key="auth_serv/user.key")
+    erp_test(dev[0], hapd, eap="TTLS", identity="erp-ttls@example.com",
+             password="password", ca_cert="auth_serv/ca.pem", phase2="auth=PAP")

tests/hwsim/wpasupplicant.py

@@ -776,7 +776,8 @@ class WpaSupplicant:
                        "wpa_ptk_rekey", "disable_ht", "disable_vht", "bssid",
                        "disable_max_amsdu", "ampdu_factor", "ampdu_density",
                        "disable_ht40", "disable_sgi", "disable_ldpc",
-                       "ht40_intolerant", "update_identifier", "mac_addr" ]
+                       "ht40_intolerant", "update_identifier", "mac_addr",
+                       "erp" ]
         for field in not_quoted:
             if field in kwargs and kwargs[field]:
                 self.set_network(id, field, kwargs[field])