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fragattacks/tests/hwsim/test_radius.py
Jouni Malinen abeea374a4 tests: RADIUS server connect() failing during startup 
Signed-off-by: Jouni Malinen <j@w1.fi>
2015-02-28 15:45:17 +02:00

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# RADIUS 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 hashlib
import hmac
import logging
logger = logging.getLogger()
import select
import struct
import subprocess
import threading
import time
import hostapd
from utils import HwsimSkip
def connect(dev, ssid, wait_connect=True):
dev.connect(ssid, key_mgmt="WPA-EAP", scan_freq="2412",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
wait_connect=wait_connect)
def test_radius_auth_unreachable(dev, apdev):
"""RADIUS Authentication server unreachable"""
params = hostapd.wpa2_eap_params(ssid="radius-auth")
params['auth_server_port'] = "18139"
hostapd.add_ap(apdev[0]['ifname'], params)
hapd = hostapd.Hostapd(apdev[0]['ifname'])
connect(dev[0], "radius-auth", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED"])
if ev is None:
raise Exception("Timeout on EAP start")
logger.info("Checking for RADIUS retries")
time.sleep(4)
mib = hapd.get_mib()
if "radiusAuthClientAccessRequests" not in mib:
raise Exception("Missing MIB fields")
if int(mib["radiusAuthClientAccessRetransmissions"]) < 1:
raise Exception("Missing RADIUS Authentication retransmission")
if int(mib["radiusAuthClientPendingRequests"]) < 1:
raise Exception("Missing pending RADIUS Authentication request")
def test_radius_auth_unreachable2(dev, apdev):
"""RADIUS Authentication server unreachable (2)"""
subprocess.call(['ip', 'ro', 'replace', '192.168.213.17', 'dev', 'lo'])
params = hostapd.wpa2_eap_params(ssid="radius-auth")
params['auth_server_addr'] = "192.168.213.17"
params['auth_server_port'] = "18139"
hostapd.add_ap(apdev[0]['ifname'], params)
hapd = hostapd.Hostapd(apdev[0]['ifname'])
subprocess.call(['ip', 'ro', 'del', '192.168.213.17', 'dev', 'lo'])
connect(dev[0], "radius-auth", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED"])
if ev is None:
raise Exception("Timeout on EAP start")
logger.info("Checking for RADIUS retries")
time.sleep(4)
mib = hapd.get_mib()
if "radiusAuthClientAccessRequests" not in mib:
raise Exception("Missing MIB fields")
if int(mib["radiusAuthClientAccessRetransmissions"]) < 1:
raise Exception("Missing RADIUS Authentication retransmission")
def test_radius_auth_unreachable3(dev, apdev):
"""RADIUS Authentication server initially unreachable, but then available"""
subprocess.call(['ip', 'ro', 'replace', 'blackhole', '192.168.213.18'])
params = hostapd.wpa2_eap_params(ssid="radius-auth")
params['auth_server_addr'] = "192.168.213.18"
hostapd.add_ap(apdev[0]['ifname'], params)
hapd = hostapd.Hostapd(apdev[0]['ifname'])
connect(dev[0], "radius-auth", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED"])
if ev is None:
raise Exception("Timeout on EAP start")
subprocess.call(['ip', 'ro', 'del', 'blackhole', '192.168.213.18'])
time.sleep(0.1)
dev[0].request("DISCONNECT")
hapd.set('auth_server_addr_replace', '127.0.0.1')
dev[0].request("RECONNECT")
dev[0].wait_connected()
def test_radius_acct_unreachable(dev, apdev):
"""RADIUS Accounting server unreachable"""
params = hostapd.wpa2_eap_params(ssid="radius-acct")
params['acct_server_addr'] = "127.0.0.1"
params['acct_server_port'] = "18139"
params['acct_server_shared_secret'] = "radius"
hostapd.add_ap(apdev[0]['ifname'], params)
hapd = hostapd.Hostapd(apdev[0]['ifname'])
connect(dev[0], "radius-acct")
logger.info("Checking for RADIUS retries")
time.sleep(4)
mib = hapd.get_mib()
if "radiusAccClientRetransmissions" not in mib:
raise Exception("Missing MIB fields")
if int(mib["radiusAccClientRetransmissions"]) < 2:
raise Exception("Missing RADIUS Accounting retransmissions")
if int(mib["radiusAccClientPendingRequests"]) < 2:
raise Exception("Missing pending RADIUS Accounting requests")
def test_radius_acct_unreachable2(dev, apdev):
"""RADIUS Accounting server unreachable(2)"""
subprocess.call(['ip', 'ro', 'replace', '192.168.213.17', 'dev', 'lo'])
params = hostapd.wpa2_eap_params(ssid="radius-acct")
params['acct_server_addr'] = "192.168.213.17"
params['acct_server_port'] = "18139"
params['acct_server_shared_secret'] = "radius"
hostapd.add_ap(apdev[0]['ifname'], params)
hapd = hostapd.Hostapd(apdev[0]['ifname'])
subprocess.call(['ip', 'ro', 'del', '192.168.213.17', 'dev', 'lo'])
connect(dev[0], "radius-acct")
logger.info("Checking for RADIUS retries")
time.sleep(4)
mib = hapd.get_mib()
if "radiusAccClientRetransmissions" not in mib:
raise Exception("Missing MIB fields")
if int(mib["radiusAccClientRetransmissions"]) < 1 and int(mib["radiusAccClientPendingRequests"]) < 1:
raise Exception("Missing pending or retransmitted RADIUS Accounting requests")
def test_radius_acct(dev, apdev):
"""RADIUS Accounting"""
as_hapd = hostapd.Hostapd("as")
as_mib_start = as_hapd.get_mib(param="radius_server")
params = hostapd.wpa2_eap_params(ssid="radius-acct")
params['acct_server_addr'] = "127.0.0.1"
params['acct_server_port'] = "1813"
params['acct_server_shared_secret'] = "radius"
params['radius_auth_req_attr'] = [ "126:s:Operator", "77:s:testing" ]
params['radius_acct_req_attr'] = [ "126:s:Operator", "77:s:testing" ]
hostapd.add_ap(apdev[0]['ifname'], params)
hapd = hostapd.Hostapd(apdev[0]['ifname'])
connect(dev[0], "radius-acct")
dev[1].connect("radius-acct", key_mgmt="WPA-EAP", scan_freq="2412",
eap="PAX", identity="test-class",
password_hex="0123456789abcdef0123456789abcdef")
dev[2].connect("radius-acct", key_mgmt="WPA-EAP",
eap="GPSK", identity="gpsk-cui",
password="abcdefghijklmnop0123456789abcdef",
scan_freq="2412")
logger.info("Checking for RADIUS counters")
count = 0
while True:
mib = hapd.get_mib()
if int(mib['radiusAccClientResponses']) >= 3:
break
time.sleep(0.1)
count += 1
if count > 10:
raise Exception("Did not receive Accounting-Response packets")
if int(mib['radiusAccClientRetransmissions']) > 0:
raise Exception("Unexpected Accounting-Request retransmission")
as_mib_end = as_hapd.get_mib(param="radius_server")
req_s = int(as_mib_start['radiusAccServTotalRequests'])
req_e = int(as_mib_end['radiusAccServTotalRequests'])
if req_e < req_s + 2:
raise Exception("Unexpected RADIUS server acct MIB value")
acc_s = int(as_mib_start['radiusAuthServAccessAccepts'])
acc_e = int(as_mib_end['radiusAuthServAccessAccepts'])
if acc_e < acc_s + 1:
raise Exception("Unexpected RADIUS server auth MIB value")
def test_radius_acct_pmksa_caching(dev, apdev):
"""RADIUS Accounting with PMKSA caching"""
as_hapd = hostapd.Hostapd("as")
as_mib_start = as_hapd.get_mib(param="radius_server")
params = hostapd.wpa2_eap_params(ssid="radius-acct")
params['acct_server_addr'] = "127.0.0.1"
params['acct_server_port'] = "1813"
params['acct_server_shared_secret'] = "radius"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
connect(dev[0], "radius-acct")
dev[1].connect("radius-acct", key_mgmt="WPA-EAP", scan_freq="2412",
eap="PAX", identity="test-class",
password_hex="0123456789abcdef0123456789abcdef")
for d in [ dev[0], dev[1] ]:
d.request("REASSOCIATE")
d.wait_connected(timeout=15, error="Reassociation timed out")
count = 0
while True:
mib = hapd.get_mib()
if int(mib['radiusAccClientResponses']) >= 4:
break
time.sleep(0.1)
count += 1
if count > 10:
raise Exception("Did not receive Accounting-Response packets")
if int(mib['radiusAccClientRetransmissions']) > 0:
raise Exception("Unexpected Accounting-Request retransmission")
as_mib_end = as_hapd.get_mib(param="radius_server")
req_s = int(as_mib_start['radiusAccServTotalRequests'])
req_e = int(as_mib_end['radiusAccServTotalRequests'])
if req_e < req_s + 2:
raise Exception("Unexpected RADIUS server acct MIB value")
acc_s = int(as_mib_start['radiusAuthServAccessAccepts'])
acc_e = int(as_mib_end['radiusAuthServAccessAccepts'])
if acc_e < acc_s + 1:
raise Exception("Unexpected RADIUS server auth MIB value")
def test_radius_acct_interim(dev, apdev):
"""RADIUS Accounting interim update"""
as_hapd = hostapd.Hostapd("as")
params = hostapd.wpa2_eap_params(ssid="radius-acct")
params['acct_server_addr'] = "127.0.0.1"
params['acct_server_port'] = "1813"
params['acct_server_shared_secret'] = "radius"
params['radius_acct_interim_interval'] = "1"
hostapd.add_ap(apdev[0]['ifname'], params)
hapd = hostapd.Hostapd(apdev[0]['ifname'])
connect(dev[0], "radius-acct")
logger.info("Checking for RADIUS counters")
as_mib_start = as_hapd.get_mib(param="radius_server")
time.sleep(3.1)
as_mib_end = as_hapd.get_mib(param="radius_server")
req_s = int(as_mib_start['radiusAccServTotalRequests'])
req_e = int(as_mib_end['radiusAccServTotalRequests'])
if req_e < req_s + 3:
raise Exception("Unexpected RADIUS server acct MIB value")
def test_radius_acct_interim_unreachable(dev, apdev):
"""RADIUS Accounting interim update with unreachable server"""
params = hostapd.wpa2_eap_params(ssid="radius-acct")
params['acct_server_addr'] = "127.0.0.1"
params['acct_server_port'] = "18139"
params['acct_server_shared_secret'] = "radius"
params['radius_acct_interim_interval'] = "1"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
start = hapd.get_mib()
connect(dev[0], "radius-acct")
logger.info("Waiting for interium accounting updates")
time.sleep(3.1)
end = hapd.get_mib()
req_s = int(start['radiusAccClientTimeouts'])
req_e = int(end['radiusAccClientTimeouts'])
if req_e < req_s + 2:
raise Exception("Unexpected RADIUS server acct MIB value")
def send_and_check_reply(srv, req, code, error_cause=0):
reply = srv.SendPacket(req)
logger.debug("RADIUS response from hostapd")
for i in reply.keys():
logger.debug("%s: %s" % (i, reply[i]))
if reply.code != code:
raise Exception("Unexpected response code")
if error_cause:
if 'Error-Cause' not in reply:
raise Exception("Missing Error-Cause")
if reply['Error-Cause'][0] != error_cause:
raise Exception("Unexpected Error-Cause: {}".format(reply['Error-Cause']))
def test_radius_das_disconnect(dev, apdev):
"""RADIUS Dynamic Authorization Extensions - Disconnect"""
try:
import pyrad.client
import pyrad.packet
import pyrad.dictionary
import radius_das
except ImportError:
raise HwsimSkip("No pyrad modules available")
params = hostapd.wpa2_eap_params(ssid="radius-das")
params['radius_das_port'] = "3799"
params['radius_das_client'] = "127.0.0.1 secret"
params['radius_das_require_event_timestamp'] = "1"
params['own_ip_addr'] = "127.0.0.1"
params['nas_identifier'] = "nas.example.com"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
connect(dev[0], "radius-das")
addr = dev[0].p2p_interface_addr()
sta = hapd.get_sta(addr)
id = sta['dot1xAuthSessionId']
dict = pyrad.dictionary.Dictionary("dictionary.radius")
srv = pyrad.client.Client(server="127.0.0.1", acctport=3799,
secret="secret", dict=dict)
srv.retries = 1
srv.timeout = 1
logger.info("Disconnect-Request with incorrect secret")
req = radius_das.DisconnectPacket(dict=dict, secret="incorrect",
User_Name="foo",
NAS_Identifier="localhost",
Event_Timestamp=int(time.time()))
logger.debug(req)
try:
reply = srv.SendPacket(req)
raise Exception("Unexpected response to Disconnect-Request")
except pyrad.client.Timeout:
logger.info("Disconnect-Request with incorrect secret properly ignored")
logger.info("Disconnect-Request without Event-Timestamp")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
User_Name="psk.user@example.com")
logger.debug(req)
try:
reply = srv.SendPacket(req)
raise Exception("Unexpected response to Disconnect-Request")
except pyrad.client.Timeout:
logger.info("Disconnect-Request without Event-Timestamp properly ignored")
logger.info("Disconnect-Request with non-matching Event-Timestamp")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
User_Name="psk.user@example.com",
Event_Timestamp=123456789)
logger.debug(req)
try:
reply = srv.SendPacket(req)
raise Exception("Unexpected response to Disconnect-Request")
except pyrad.client.Timeout:
logger.info("Disconnect-Request with non-matching Event-Timestamp properly ignored")
logger.info("Disconnect-Request with unsupported attribute")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
User_Name="foo",
User_Password="foo",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 401)
logger.info("Disconnect-Request with invalid Calling-Station-Id")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
User_Name="foo",
Calling_Station_Id="foo",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 407)
logger.info("Disconnect-Request with mismatching User-Name")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
User_Name="foo",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 503)
logger.info("Disconnect-Request with mismatching Calling-Station-Id")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
Calling_Station_Id="12:34:56:78:90:aa",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 503)
logger.info("Disconnect-Request with mismatching Acct-Session-Id")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
Acct_Session_Id="12345678-87654321",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 503)
logger.info("Disconnect-Request with mismatching Acct-Session-Id (len)")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
Acct_Session_Id="12345678",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 503)
logger.info("Disconnect-Request with mismatching Acct-Multi-Session-Id")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
Acct_Multi_Session_Id="12345678+87654321",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 503)
logger.info("Disconnect-Request with mismatching Acct-Multi-Session-Id (len)")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
Acct_Multi_Session_Id="12345678",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 503)
logger.info("Disconnect-Request with no session identification attributes")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 503)
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection")
logger.info("Disconnect-Request with mismatching NAS-IP-Address")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_IP_Address="192.168.3.4",
Acct_Session_Id=id,
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 403)
logger.info("Disconnect-Request with mismatching NAS-Identifier")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_Identifier="unknown.example.com",
Acct_Session_Id=id,
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, 403)
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection")
logger.info("Disconnect-Request with matching Acct-Session-Id")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_IP_Address="127.0.0.1",
NAS_Identifier="nas.example.com",
Acct_Session_Id=id,
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
dev[0].wait_disconnected(timeout=10)
dev[0].wait_connected(timeout=10, error="Re-connection timed out")
logger.info("Disconnect-Request with matching Acct-Multi-Session-Id")
sta = hapd.get_sta(addr)
multi_sess_id = sta['authMultiSessionId']
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_IP_Address="127.0.0.1",
NAS_Identifier="nas.example.com",
Acct_Multi_Session_Id=multi_sess_id,
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
dev[0].wait_disconnected(timeout=10)
dev[0].wait_connected(timeout=10, error="Re-connection timed out")
logger.info("Disconnect-Request with matching User-Name")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_Identifier="nas.example.com",
User_Name="psk.user@example.com",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
dev[0].wait_disconnected(timeout=10)
dev[0].wait_connected(timeout=10, error="Re-connection timed out")
logger.info("Disconnect-Request with matching Calling-Station-Id")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_IP_Address="127.0.0.1",
Calling_Station_Id=addr,
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
dev[0].wait_disconnected(timeout=10)
ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED", "CTRL-EVENT-CONNECTED"])
if ev is None:
raise Exception("Timeout while waiting for re-connection")
if "CTRL-EVENT-EAP-STARTED" not in ev:
raise Exception("Unexpected skipping of EAP authentication in reconnection")
dev[0].wait_connected(timeout=10, error="Re-connection timed out")
logger.info("Disconnect-Request with matching Calling-Station-Id and non-matching CUI")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
Calling_Station_Id=addr,
Chargeable_User_Identity="foo@example.com",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, error_cause=503)
logger.info("Disconnect-Request with matching CUI")
dev[1].connect("radius-das", key_mgmt="WPA-EAP",
eap="GPSK", identity="gpsk-cui",
password="abcdefghijklmnop0123456789abcdef",
scan_freq="2412")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
Chargeable_User_Identity="gpsk-chargeable-user-identity",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
dev[1].wait_disconnected(timeout=10)
dev[1].wait_connected(timeout=10, error="Re-connection timed out")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection")
connect(dev[2], "radius-das")
logger.info("Disconnect-Request with matching User-Name - multiple sessions matching")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_Identifier="nas.example.com",
User_Name="psk.user@example.com",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, error_cause=508)
logger.info("Disconnect-Request with User-Name matching multiple sessions, Calling-Station-Id only one")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_Identifier="nas.example.com",
Calling_Station_Id=addr,
User_Name="psk.user@example.com",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
dev[0].wait_disconnected(timeout=10)
dev[0].wait_connected(timeout=10, error="Re-connection timed out")
ev = dev[2].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected disconnection")
logger.info("Disconnect-Request with matching Acct-Multi-Session-Id after disassociation")
sta = hapd.get_sta(addr)
multi_sess_id = sta['authMultiSessionId']
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=10)
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_IP_Address="127.0.0.1",
NAS_Identifier="nas.example.com",
Acct_Multi_Session_Id=multi_sess_id,
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
dev[0].request("RECONNECT")
ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED"], timeout=15)
if ev is None:
raise Exception("Timeout on EAP start")
dev[0].wait_connected(timeout=15)
logger.info("Disconnect-Request with matching User-Name after disassociation")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=10)
dev[2].request("DISCONNECT")
dev[2].wait_disconnected(timeout=10)
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_IP_Address="127.0.0.1",
NAS_Identifier="nas.example.com",
User_Name="psk.user@example.com",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
logger.info("Disconnect-Request with matching CUI after disassociation")
dev[1].request("DISCONNECT")
dev[1].wait_disconnected(timeout=10)
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_IP_Address="127.0.0.1",
NAS_Identifier="nas.example.com",
Chargeable_User_Identity="gpsk-chargeable-user-identity",
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
logger.info("Disconnect-Request with matching Calling-Station-Id after disassociation")
dev[0].request("RECONNECT")
ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED"], timeout=15)
if ev is None:
raise Exception("Timeout on EAP start")
dev[0].wait_connected(timeout=15)
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=10)
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_IP_Address="127.0.0.1",
NAS_Identifier="nas.example.com",
Calling_Station_Id=addr,
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
logger.info("Disconnect-Request with mismatching Calling-Station-Id after disassociation")
req = radius_das.DisconnectPacket(dict=dict, secret="secret",
NAS_IP_Address="127.0.0.1",
NAS_Identifier="nas.example.com",
Calling_Station_Id=addr,
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.DisconnectNAK, error_cause=503)
def test_radius_das_coa(dev, apdev):
"""RADIUS Dynamic Authorization Extensions - CoA"""
try:
import pyrad.client
import pyrad.packet
import pyrad.dictionary
import radius_das
except ImportError:
raise HwsimSkip("No pyrad modules available")
params = hostapd.wpa2_eap_params(ssid="radius-das")
params['radius_das_port'] = "3799"
params['radius_das_client'] = "127.0.0.1 secret"
params['radius_das_require_event_timestamp'] = "1"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
connect(dev[0], "radius-das")
addr = dev[0].p2p_interface_addr()
sta = hapd.get_sta(addr)
id = sta['dot1xAuthSessionId']
dict = pyrad.dictionary.Dictionary("dictionary.radius")
srv = pyrad.client.Client(server="127.0.0.1", acctport=3799,
secret="secret", dict=dict)
srv.retries = 1
srv.timeout = 1
# hostapd does not currently support CoA-Request, so NAK is expected
logger.info("CoA-Request with matching Acct-Session-Id")
req = radius_das.CoAPacket(dict=dict, secret="secret",
Acct_Session_Id=id,
Event_Timestamp=int(time.time()))
send_and_check_reply(srv, req, pyrad.packet.CoANAK, error_cause=405)
def test_radius_ipv6(dev, apdev):
"""RADIUS connection over IPv6"""
params = {}
params['ssid'] = 'as'
params['beacon_int'] = '2000'
params['radius_server_clients'] = 'auth_serv/radius_clients_ipv6.conf'
params['radius_server_ipv6'] = '1'
params['radius_server_auth_port'] = '18129'
params['radius_server_acct_port'] = '18139'
params['eap_server'] = '1'
params['eap_user_file'] = 'auth_serv/eap_user.conf'
params['ca_cert'] = 'auth_serv/ca.pem'
params['server_cert'] = 'auth_serv/server.pem'
params['private_key'] = 'auth_serv/server.key'
hostapd.add_ap(apdev[1]['ifname'], params)
params = hostapd.wpa2_eap_params(ssid="radius-ipv6")
params['auth_server_addr'] = "::0"
params['auth_server_port'] = "18129"
params['acct_server_addr'] = "::0"
params['acct_server_port'] = "18139"
params['acct_server_shared_secret'] = "radius"
params['own_ip_addr'] = "::0"
hostapd.add_ap(apdev[0]['ifname'], params)
connect(dev[0], "radius-ipv6")
def test_radius_macacl(dev, apdev):
"""RADIUS MAC ACL"""
params = hostapd.radius_params()
params["ssid"] = "radius"
params["macaddr_acl"] = "2"
hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect("radius", key_mgmt="NONE", scan_freq="2412")
def test_radius_macacl_acct(dev, apdev):
"""RADIUS MAC ACL and accounting enabled"""
params = hostapd.radius_params()
params["ssid"] = "radius"
params["macaddr_acl"] = "2"
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)
dev[0].connect("radius", key_mgmt="NONE", scan_freq="2412")
dev[1].connect("radius", key_mgmt="NONE", scan_freq="2412")
dev[1].request("DISCONNECT")
dev[1].wait_disconnected()
dev[1].request("RECONNECT")
def test_radius_failover(dev, apdev):
"""RADIUS Authentication and Accounting server failover"""
subprocess.call(['ip', 'ro', 'replace', '192.168.213.17', 'dev', 'lo'])
as_hapd = hostapd.Hostapd("as")
as_mib_start = as_hapd.get_mib(param="radius_server")
params = hostapd.wpa2_eap_params(ssid="radius-failover")
params["auth_server_addr"] = "192.168.213.17"
params["auth_server_port"] = "1812"
params["auth_server_shared_secret"] = "testing"
params['acct_server_addr'] = "192.168.213.17"
params['acct_server_port'] = "1813"
params['acct_server_shared_secret'] = "testing"
hapd = hostapd.add_ap(apdev[0]['ifname'], params, no_enable=True)
hapd.set("auth_server_addr", "127.0.0.1")
hapd.set("auth_server_port", "1812")
hapd.set("auth_server_shared_secret", "radius")
hapd.set('acct_server_addr', "127.0.0.1")
hapd.set('acct_server_port', "1813")
hapd.set('acct_server_shared_secret', "radius")
hapd.enable()
ev = hapd.wait_event(["AP-ENABLED", "AP-DISABLED"], timeout=30)
if ev is None:
raise Exception("AP startup timed out")
if "AP-ENABLED" not in ev:
raise Exception("AP startup failed")
try:
subprocess.call(['ip', 'ro', 'replace', 'prohibit', '192.168.213.17'])
dev[0].request("SET EAPOL::authPeriod 5")
connect(dev[0], "radius-failover", wait_connect=False)
dev[0].wait_connected(timeout=60)
finally:
dev[0].request("SET EAPOL::authPeriod 30")
subprocess.call(['ip', 'ro', 'del', '192.168.213.17'])
as_mib_end = as_hapd.get_mib(param="radius_server")
req_s = int(as_mib_start['radiusAccServTotalRequests'])
req_e = int(as_mib_end['radiusAccServTotalRequests'])
if req_e <= req_s:
raise Exception("Unexpected RADIUS server acct MIB value")
def run_pyrad_server(srv, t_events):
srv.RunWithStop(t_events)
def test_radius_protocol(dev, apdev):
"""RADIUS Authentication protocol tests with a fake server"""
try:
import pyrad.server
import pyrad.packet
import pyrad.dictionary
except ImportError:
raise HwsimSkip("No pyrad modules available")
class TestServer(pyrad.server.Server):
def _HandleAuthPacket(self, pkt):
pyrad.server.Server._HandleAuthPacket(self, pkt)
logger.info("Received authentication request")
reply = self.CreateReplyPacket(pkt)
reply.code = pyrad.packet.AccessAccept
if self.t_events['msg_auth'].is_set():
logger.info("Add Message-Authenticator")
if self.t_events['wrong_secret'].is_set():
logger.info("Use incorrect RADIUS shared secret")
pw = "incorrect"
else:
pw = reply.secret
hmac_obj = hmac.new(pw)
hmac_obj.update(struct.pack("B", reply.code))
hmac_obj.update(struct.pack("B", reply.id))
# reply attributes
reply.AddAttribute("Message-Authenticator",
"\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00")
attrs = reply._PktEncodeAttributes()
# Length
flen = 4 + 16 + len(attrs)
hmac_obj.update(struct.pack(">H", flen))
hmac_obj.update(pkt.authenticator)
hmac_obj.update(attrs)
if self.t_events['double_msg_auth'].is_set():
logger.info("Include two Message-Authenticator attributes")
else:
del reply[80]
reply.AddAttribute("Message-Authenticator", hmac_obj.digest())
self.SendReplyPacket(pkt.fd, reply)
def RunWithStop(self, t_events):
self._poll = select.poll()
self._fdmap = {}
self._PrepareSockets()
self.t_events = t_events
while not t_events['stop'].is_set():
for (fd, event) in self._poll.poll(1000):
if event == select.POLLIN:
try:
fdo = self._fdmap[fd]
self._ProcessInput(fdo)
except ServerPacketError as err:
logger.info("pyrad server dropping packet: " + str(err))
except pyrad.packet.PacketError as err:
logger.info("pyrad server received invalid packet: " + str(err))
else:
logger.error("Unexpected event in pyrad server main loop")
srv = TestServer(dict=pyrad.dictionary.Dictionary("dictionary.radius"),
authport=18138, acctport=18139)
srv.hosts["127.0.0.1"] = pyrad.server.RemoteHost("127.0.0.1",
"radius",
"localhost")
srv.BindToAddress("")
t_events = {}
t_events['stop'] = threading.Event()
t_events['msg_auth'] = threading.Event()
t_events['wrong_secret'] = threading.Event()
t_events['double_msg_auth'] = threading.Event()
t = threading.Thread(target=run_pyrad_server, args=(srv, t_events))
t.start()
try:
params = hostapd.wpa2_eap_params(ssid="radius-test")
params['auth_server_port'] = "18138"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
connect(dev[0], "radius-test", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED"], timeout=15)
if ev is None:
raise Exception("Timeout on EAP start")
time.sleep(1)
dev[0].request("REMOVE_NETWORK all")
time.sleep(0.1)
dev[0].dump_monitor()
t_events['msg_auth'].set()
t_events['wrong_secret'].set()
connect(dev[0], "radius-test", wait_connect=False)
time.sleep(1)
dev[0].request("REMOVE_NETWORK all")
time.sleep(0.1)
dev[0].dump_monitor()
t_events['wrong_secret'].clear()
connect(dev[0], "radius-test", wait_connect=False)
time.sleep(1)
dev[0].request("REMOVE_NETWORK all")
time.sleep(0.1)
dev[0].dump_monitor()
t_events['double_msg_auth'].set()
connect(dev[0], "radius-test", wait_connect=False)
time.sleep(1)
finally:
t_events['stop'].set()
t.join()
def test_radius_psk(dev, apdev):
"""WPA2 with PSK from RADIUS"""
try:
import pyrad.server
import pyrad.packet
import pyrad.dictionary
except ImportError:
raise HwsimSkip("No pyrad modules available")
class TestServer(pyrad.server.Server):
def _HandleAuthPacket(self, pkt):
pyrad.server.Server._HandleAuthPacket(self, pkt)
logger.info("Received authentication request")
reply = self.CreateReplyPacket(pkt)
reply.code = pyrad.packet.AccessAccept
a = "\xab\xcd"
secret = reply.secret
if self.t_events['long'].is_set():
p = b'\x10' + "0123456789abcdef" + 15 * b'\x00'
b = hashlib.md5(secret + pkt.authenticator + a).digest()
pp = bytearray(p[0:16])
bb = bytearray(b)
cc = bytearray(pp[i] ^ bb[i] for i in range(len(bb)))
b = hashlib.md5(reply.secret + bytes(cc)).digest()
pp = bytearray(p[16:32])
bb = bytearray(b)
cc += bytearray(pp[i] ^ bb[i] for i in range(len(bb)))
data = '\x00' + a + bytes(cc)
else:
p = b'\x08' + "12345678" + 7 * b'\x00'
b = hashlib.md5(secret + pkt.authenticator + a).digest()
pp = bytearray(p)
bb = bytearray(b)
cc = bytearray(pp[i] ^ bb[i] for i in range(len(bb)))
data = '\x00' + a + bytes(cc)
reply.AddAttribute("Tunnel-Password", data)
self.SendReplyPacket(pkt.fd, reply)
def RunWithStop(self, t_events):
self._poll = select.poll()
self._fdmap = {}
self._PrepareSockets()
self.t_events = t_events
while not t_events['stop'].is_set():
for (fd, event) in self._poll.poll(1000):
if event == select.POLLIN:
try:
fdo = self._fdmap[fd]
self._ProcessInput(fdo)
except ServerPacketError as err:
logger.info("pyrad server dropping packet: " + str(err))
except pyrad.packet.PacketError as err:
logger.info("pyrad server received invalid packet: " + str(err))
else:
logger.error("Unexpected event in pyrad server main loop")
srv = TestServer(dict=pyrad.dictionary.Dictionary("dictionary.radius"),
authport=18138, acctport=18139)
srv.hosts["127.0.0.1"] = pyrad.server.RemoteHost("127.0.0.1",
"radius",
"localhost")
srv.BindToAddress("")
t_events = {}
t_events['stop'] = threading.Event()
t_events['long'] = threading.Event()
t = threading.Thread(target=run_pyrad_server, args=(srv, t_events))
t.start()
try:
ssid = "test-wpa2-psk"
params = hostapd.radius_params()
params['ssid'] = ssid
params["wpa"] = "2"
params["wpa_key_mgmt"] = "WPA-PSK"
params["rsn_pairwise"] = "CCMP"
params['macaddr_acl'] = '2'
params['wpa_psk_radius'] = '2'
params['auth_server_port'] = "18138"
hapd = hostapd.add_ap(apdev[0]['ifname'], params)
dev[0].connect(ssid, psk="12345678", scan_freq="2412")
t_events['long'].set()
dev[1].connect(ssid, psk="0123456789abcdef", scan_freq="2412")
finally:
t_events['stop'].set()
t.join()
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