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hostap/tests/hwsim/test_radius.py
Jouni Malinen 54c154d2c9 tests: radius_acct_unreachable2 to detect retransmissions earlier 
It looks like this test case can start showing failures with a change in
the retransmission limit behavior for a server change. Check for
retransmissions every second instead of only at the end of the four
second wait to avoid this.

Signed-off-by: Jouni Malinen <j@w1.fi>
2019-12-30 19:13:51 +02:00

1688 lines
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# RADIUS tests
# Copyright (c) 2013-2016, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
from remotehost import remote_compatible
import binascii
import hashlib
import hmac
import logging
logger = logging.getLogger()
import os
import select
import struct
import subprocess
import threading
import time
import hostapd
from utils import HwsimSkip, require_under_vm, skip_with_fips, alloc_fail, fail_test, wait_fail_trigger
from test_ap_hs20 import build_dhcp_ack
from test_ap_ft import ft_params1
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)
@remote_compatible
def test_radius_auth_unreachable(dev, apdev):
"""RADIUS Authentication server unreachable"""
params = hostapd.wpa2_eap_params(ssid="radius-auth")
params['auth_server_port'] = "18139"
hapd = hostapd.add_ap(apdev[0], params)
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"
hapd = hostapd.add_ap(apdev[0], params)
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")
logger.info("radiusAuthClientAccessRetransmissions: " + mib["radiusAuthClientAccessRetransmissions"])
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"
hapd = hostapd.add_ap(apdev[0], params)
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"
hapd = hostapd.add_ap(apdev[0], params)
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"
hapd = hostapd.add_ap(apdev[0], params)
subprocess.call(['ip', 'ro', 'del', '192.168.213.17', 'dev', 'lo'])
connect(dev[0], "radius-acct")
logger.info("Checking for RADIUS retries")
found = False
for i in range(4):
time.sleep(1)
mib = hapd.get_mib()
if "radiusAccClientRetransmissions" not in mib:
raise Exception("Missing MIB fields")
if int(mib["radiusAccClientRetransmissions"]) > 0 or \
int(mib["radiusAccClientPendingRequests"]) > 0:
found = True
if not found:
raise Exception("Missing pending or retransmitted RADIUS Accounting requests")
def test_radius_acct_unreachable3(dev, apdev):
"""RADIUS Accounting server initially unreachable, but then available"""
require_under_vm()
subprocess.call(['ip', 'ro', 'replace', 'blackhole', '192.168.213.18'])
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'] = "192.168.213.18"
params['acct_server_port'] = "1813"
params['acct_server_shared_secret'] = "radius"
hapd = hostapd.add_ap(apdev[0], params)
connect(dev[0], "radius-acct")
subprocess.call(['ip', 'ro', 'del', 'blackhole', '192.168.213.18'])
time.sleep(0.1)
dev[0].request("DISCONNECT")
hapd.set('acct_server_addr_replace', '127.0.0.1')
dev[0].request("RECONNECT")
dev[0].wait_connected()
time.sleep(1)
as_mib_end = as_hapd.get_mib(param="radius_server")
req_s = int(as_mib_start['radiusAccServTotalResponses'])
req_e = int(as_mib_end['radiusAccServTotalResponses'])
if req_e <= req_s:
raise Exception("Unexpected RADIUS server acct MIB value")
def test_radius_acct_unreachable4(dev, apdev):
"""RADIUS Accounting server unreachable and multiple STAs"""
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"
hapd = hostapd.add_ap(apdev[0], params)
for i in range(20):
connect(dev[0], "radius-acct")
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected()
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",
"62:d:1"]
params['radius_acct_req_attr'] = ["126:s:Operator", "62:d:1",
"77:s:testing"]
hapd = hostapd.add_ap(apdev[0], 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")
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_req_attr(dev, apdev, params):
"""RADIUS request attributes"""
try:
import sqlite3
except ImportError:
raise HwsimSkip("No sqlite3 module available")
db = os.path.join(params['logdir'], "radius_req_attr.sqlite")
as_hapd = hostapd.Hostapd("as")
params = hostapd.wpa2_eap_params(ssid="radius-req-attr")
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"]
params['radius_acct_req_attr'] = ["126:s:Operator"]
params['radius_req_attr_sqlite'] = db
hapd = hostapd.add_ap(apdev[0], params)
with sqlite3.connect(db) as conn:
sql = "INSERT INTO radius_attributes(sta,reqtype,attr) VALUES (?,?,?)"
for e in [(dev[0].own_addr(), "auth", "77:s:conn-info-0"),
(dev[1].own_addr(), "auth", "77:s:conn-info-1"),
(dev[1].own_addr(), "auth", "77:s:conn-info-1a"),
(dev[1].own_addr(), "acct", "77:s:conn-info-1b")]:
conn.execute(sql, e)
conn.commit()
connect(dev[0], "radius-req-attr")
connect(dev[1], "radius-req-attr")
connect(dev[2], "radius-req-attr")
def test_radius_acct_non_ascii_ssid(dev, apdev):
"""RADIUS Accounting and non-ASCII SSID"""
params = hostapd.wpa2_eap_params()
params['acct_server_addr'] = "127.0.0.1"
params['acct_server_port'] = "1813"
params['acct_server_shared_secret'] = "radius"
ssid2 = "740665007374"
params['ssid2'] = ssid2
hostapd.add_ap(apdev[0], params)
dev[0].connect(ssid2=ssid2, key_mgmt="WPA-EAP", scan_freq="2412",
eap="PSK", identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef")
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], 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"
hapd = hostapd.add_ap(apdev[0], params)
connect(dev[0], "radius-acct")
logger.info("Checking for RADIUS counters")
as_mib_start = as_hapd.get_mib(param="radius_server")
time.sleep(4.1)
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 (req_e=%d req_s=%d)" % (req_e, req_s))
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], 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 test_radius_acct_interim_unreachable2(dev, apdev):
"""RADIUS Accounting interim update with unreachable server (retry)"""
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"
# Use long enough interim update interval to allow RADIUS retransmission
# case (3 seconds) to trigger first.
params['radius_acct_interim_interval'] = "4"
hapd = hostapd.add_ap(apdev[0], params)
start = hapd.get_mib()
connect(dev[0], "radius-acct")
logger.info("Waiting for interium accounting updates")
time.sleep(7.5)
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 test_radius_acct_ipaddr(dev, apdev):
"""RADIUS Accounting and Framed-IP-Address"""
try:
_test_radius_acct_ipaddr(dev, apdev)
finally:
subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'down'],
stderr=open('/dev/null', 'w'))
subprocess.call(['brctl', 'delbr', 'ap-br0'],
stderr=open('/dev/null', 'w'))
def _test_radius_acct_ipaddr(dev, apdev):
params = {"ssid": "radius-acct-open",
'acct_server_addr': "127.0.0.1",
'acct_server_port': "1813",
'acct_server_shared_secret': "radius",
'proxy_arp': '1',
'ap_isolate': '1',
'bridge': 'ap-br0'}
hapd = hostapd.add_ap(apdev[0], params, no_enable=True)
try:
hapd.enable()
except:
# For now, do not report failures due to missing kernel support
raise HwsimSkip("Could not start hostapd - assume proxyarp not supported in kernel version")
bssid = apdev[0]['bssid']
subprocess.call(['brctl', 'setfd', 'ap-br0', '0'])
subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'up'])
dev[0].connect("radius-acct-open", key_mgmt="NONE", scan_freq="2412")
addr0 = dev[0].own_addr()
pkt = build_dhcp_ack(dst_ll="ff:ff:ff:ff:ff:ff", src_ll=bssid,
ip_src="192.168.1.1", ip_dst="255.255.255.255",
yiaddr="192.168.1.123", chaddr=addr0)
if "OK" not in hapd.request("DATA_TEST_FRAME ifname=ap-br0 " + binascii.hexlify(pkt).decode()):
raise Exception("DATA_TEST_FRAME failed")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
hapd.disable()
def send_and_check_reply(srv, req, code, error_cause=0):
reply = srv.SendPacket(req)
logger.debug("RADIUS response from hostapd")
for i in list(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_acct_psk(dev, apdev):
"""RADIUS Accounting - PSK"""
as_hapd = hostapd.Hostapd("as")
params = hostapd.wpa2_params(ssid="radius-acct", passphrase="12345678")
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], params)
dev[0].connect("radius-acct", psk="12345678", scan_freq="2412")
def test_radius_acct_psk_sha256(dev, apdev):
"""RADIUS Accounting - PSK SHA256"""
as_hapd = hostapd.Hostapd("as")
params = hostapd.wpa2_params(ssid="radius-acct", passphrase="12345678")
params["wpa_key_mgmt"] = "WPA-PSK-SHA256"
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], params)
dev[0].connect("radius-acct", key_mgmt="WPA-PSK-SHA256",
psk="12345678", scan_freq="2412")
def test_radius_acct_ft_psk(dev, apdev):
"""RADIUS Accounting - FT-PSK"""
as_hapd = hostapd.Hostapd("as")
params = ft_params1(ssid="radius-acct", passphrase="12345678")
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], params)
dev[0].connect("radius-acct", key_mgmt="FT-PSK",
psk="12345678", scan_freq="2412")
def test_radius_acct_ieee8021x(dev, apdev):
"""RADIUS Accounting - IEEE 802.1X"""
skip_with_fips(dev[0])
as_hapd = hostapd.Hostapd("as")
params = hostapd.radius_params()
params["ssid"] = "radius-acct-1x"
params["ieee8021x"] = "1"
params["wep_key_len_broadcast"] = "13"
params["wep_key_len_unicast"] = "13"
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], params)
dev[0].connect("radius-acct-1x", key_mgmt="IEEE8021X", eap="PSK",
identity="psk.user@example.com",
password_hex="0123456789abcdef0123456789abcdef",
scan_freq="2412")
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], 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=b"secret", dict=dict)
srv.retries = 1
srv.timeout = 1
logger.info("Disconnect-Request with incorrect secret")
req = radius_das.DisconnectPacket(dict=dict, secret=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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=b"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 add_message_auth_req(req):
req.authenticator = req.CreateAuthenticator()
hmac_obj = hmac.new(req.secret)
hmac_obj.update(struct.pack("B", req.code))
hmac_obj.update(struct.pack("B", req.id))
# request attributes
req.AddAttribute("Message-Authenticator", 16*b"\x00")
attrs = b''
for code, datalst in sorted(req.items()):
for data in datalst:
attrs += req._PktEncodeAttribute(code, data)
# Length
flen = 4 + 16 + len(attrs)
hmac_obj.update(struct.pack(">H", flen))
hmac_obj.update(16*b"\x00") # all zeros Authenticator in calculation
hmac_obj.update(attrs)
del req[80]
req.AddAttribute("Message-Authenticator", hmac_obj.digest())
def test_radius_das_disconnect_time_window(dev, apdev):
"""RADIUS Dynamic Authorization Extensions - Disconnect - time window"""
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['radius_das_require_message_authenticator'] = "1"
params['radius_das_time_window'] = "10"
params['own_ip_addr'] = "127.0.0.1"
params['nas_identifier'] = "nas.example.com"
hapd = hostapd.add_ap(apdev[0], params)
connect(dev[0], "radius-das")
addr = dev[0].own_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=b"secret", dict=dict)
srv.retries = 1
srv.timeout = 1
logger.info("Disconnect-Request with unsupported attribute")
req = radius_das.DisconnectPacket(dict=dict, secret=b"secret",
NAS_IP_Address="127.0.0.1",
NAS_Identifier="nas.example.com",
Calling_Station_Id=addr,
Event_Timestamp=int(time.time()) - 50)
add_message_auth_req(req)
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=b"secret",
NAS_IP_Address="127.0.0.1",
NAS_Identifier="nas.example.com",
Calling_Station_Id=addr,
Event_Timestamp=int(time.time()))
add_message_auth_req(req)
send_and_check_reply(srv, req, pyrad.packet.DisconnectACK)
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], 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=b"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=b"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], 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], 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], params)
dev[0].connect("radius", key_mgmt="NONE", scan_freq="2412")
# Invalid VLAN ID from RADIUS server
dev[2].connect("radius", key_mgmt="NONE", scan_freq="2412")
dev[2].request("REMOVE_NETWORK all")
dev[2].wait_disconnected()
dev[2].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], 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_macacl_oom(dev, apdev):
"""RADIUS MAC ACL and OOM"""
params = hostapd.radius_params()
params["ssid"] = "radius"
params["macaddr_acl"] = "2"
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
with alloc_fail(hapd, 1, "hostapd_allowed_address"):
dev[0].connect("radius", key_mgmt="NONE", scan_freq="2412")
dev[1].scan_for_bss(bssid, freq="2412")
with alloc_fail(hapd, 2, "hostapd_allowed_address"):
dev[1].connect("radius", key_mgmt="NONE", scan_freq="2412")
dev[2].scan_for_bss(bssid, freq="2412")
with alloc_fail(hapd, 2, "=hostapd_allowed_address"):
dev[2].connect("radius", key_mgmt="NONE", scan_freq="2412")
def test_radius_macacl_unreachable(dev, apdev):
"""RADIUS MAC ACL and server unreachable"""
params = hostapd.radius_params()
params['auth_server_port'] = "18139"
params["ssid"] = "radius"
params["macaddr_acl"] = "2"
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
dev[0].connect("radius", key_mgmt="NONE", scan_freq="2412",
wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=3)
if ev is not None:
raise Exception("Unexpected connection")
logger.info("Fix authentication server port")
hapd.set("auth_server_port", "1812")
hapd.disable()
hapd.enable()
dev[0].wait_connected()
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
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"
params['radius_retry_primary_interval'] = "20"
hapd = hostapd.add_ap(apdev[0], 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")
start = os.times()[4]
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=20)
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")
end = os.times()[4]
try:
subprocess.call(['ip', 'ro', 'replace', 'prohibit', '192.168.213.17'])
dev[1].request("SET EAPOL::authPeriod 5")
if end - start < 21:
time.sleep(21 - (end - start))
connect(dev[1], "radius-failover", wait_connect=False)
dev[1].wait_connected(timeout=20)
finally:
dev[1].request("SET EAPOL::authPeriod 30")
subprocess.call(['ip', 'ro', 'del', '192.168.213.17'])
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 = b"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", 16*b"\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 pyrad.server.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")
for fd in self.authfds + self.acctfds:
fd.close()
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",
b"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], 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 build_tunnel_password(secret, authenticator, psk):
a = b"\xab\xcd"
psk = psk.encode()
padlen = 16 - (1 + len(psk)) % 16
if padlen == 16:
padlen = 0
p = struct.pack('B', len(psk)) + psk + padlen * b'\x00'
cc_all = bytes()
b = hashlib.md5(secret + authenticator + a).digest()
while len(p) > 0:
pp = bytearray(p[0:16])
p = p[16:]
bb = bytearray(b)
cc = bytearray(pp[i] ^ bb[i] for i in range(len(bb)))
cc_all += cc
b = hashlib.md5(secret + cc).digest()
data = b'\x00' + a + bytes(cc_all)
return data
def start_radius_psk_server(psk, invalid_code=False, acct_interim_interval=0,
session_timeout=0, reject=False):
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['invalid_code']:
reply.code = pyrad.packet.AccessRequest
if self.t_events['reject']:
reply.code = pyrad.packet.AccessReject
data = build_tunnel_password(reply.secret, pkt.authenticator,
self.t_events['psk'])
reply.AddAttribute("Tunnel-Password", data)
if self.t_events['acct_interim_interval']:
reply.AddAttribute("Acct-Interim-Interval",
self.t_events['acct_interim_interval'])
if self.t_events['session_timeout']:
reply.AddAttribute("Session-Timeout",
self.t_events['session_timeout'])
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 pyrad.server.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")
for fd in self.authfds + self.acctfds:
fd.close()
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",
b"radius",
"localhost")
srv.BindToAddress("")
t_events = {}
t_events['stop'] = threading.Event()
t_events['psk'] = psk
t_events['invalid_code'] = invalid_code
t_events['acct_interim_interval'] = acct_interim_interval
t_events['session_timeout'] = session_timeout
t_events['reject'] = reject
t = threading.Thread(target=run_pyrad_server, args=(srv, t_events))
t.start()
return t, t_events
def hostapd_radius_psk_test_params():
params = hostapd.radius_params()
params['ssid'] = "test-wpa2-psk"
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"
return params
def test_radius_psk(dev, apdev):
"""WPA2 with PSK from RADIUS"""
t, t_events = start_radius_psk_server("12345678")
try:
params = hostapd_radius_psk_test_params()
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412")
t_events['psk'] = "0123456789abcdef"
dev[1].connect("test-wpa2-psk", psk="0123456789abcdef",
scan_freq="2412")
finally:
t_events['stop'].set()
t.join()
def test_radius_psk_invalid(dev, apdev):
"""WPA2 with invalid PSK from RADIUS"""
t, t_events = start_radius_psk_server("1234567")
try:
params = hostapd_radius_psk_test_params()
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412",
wait_connect=False)
time.sleep(1)
finally:
t_events['stop'].set()
t.join()
def test_radius_psk_invalid2(dev, apdev):
"""WPA2 with invalid PSK (hexstring) from RADIUS"""
t, t_events = start_radius_psk_server(64*'q')
try:
params = hostapd_radius_psk_test_params()
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412",
wait_connect=False)
time.sleep(1)
finally:
t_events['stop'].set()
t.join()
def test_radius_psk_hex_psk(dev, apdev):
"""WPA2 with PSK hexstring from RADIUS"""
t, t_events = start_radius_psk_server(64*'2', acct_interim_interval=19,
session_timeout=123)
try:
params = hostapd_radius_psk_test_params()
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect("test-wpa2-psk", raw_psk=64*'2', scan_freq="2412")
finally:
t_events['stop'].set()
t.join()
def test_radius_psk_unknown_code(dev, apdev):
"""WPA2 with PSK from RADIUS and unknown code"""
t, t_events = start_radius_psk_server(64*'2', invalid_code=True)
try:
params = hostapd_radius_psk_test_params()
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412",
wait_connect=False)
time.sleep(1)
finally:
t_events['stop'].set()
t.join()
def test_radius_psk_reject(dev, apdev):
"""WPA2 with PSK from RADIUS and reject"""
t, t_events = start_radius_psk_server("12345678", reject=True)
try:
params = hostapd_radius_psk_test_params()
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412",
wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-AUTH-REJECT"], timeout=10)
if ev is None:
raise Exception("No CTRL-EVENT-AUTH-REJECT event")
dev[0].request("DISCONNECT")
finally:
t_events['stop'].set()
t.join()
def test_radius_psk_oom(dev, apdev):
"""WPA2 with PSK from RADIUS and OOM"""
t, t_events = start_radius_psk_server(64*'2')
try:
params = hostapd_radius_psk_test_params()
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
with alloc_fail(hapd, 1, "=hostapd_acl_recv_radius"):
dev[0].connect("test-wpa2-psk", psk="12345678", scan_freq="2412",
wait_connect=False)
wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
finally:
t_events['stop'].set()
t.join()
def test_radius_psk_default(dev, apdev):
"""WPA2 with default PSK"""
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'] = '1'
params['wpa_passphrase'] = 'qwertyuiop'
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect(ssid, psk="qwertyuiop", scan_freq="2412")
dev[0].dump_monitor()
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected()
dev[0].dump_monitor()
hapd.disable()
hapd.set("wpa_psk_radius", "2")
hapd.enable()
dev[0].connect(ssid, psk="qwertyuiop", scan_freq="2412", wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-AUTH-REJECT"], timeout=10)
if ev is None:
raise Exception("No CTRL-EVENT-AUTH-REJECT event")
dev[0].request("DISCONNECT")
def test_radius_auth_force_client_addr(dev, apdev):
"""RADIUS client address specified"""
params = hostapd.wpa2_eap_params(ssid="radius-auth")
params['radius_client_addr'] = "127.0.0.1"
hapd = hostapd.add_ap(apdev[0], params)
connect(dev[0], "radius-auth")
@remote_compatible
def test_radius_auth_force_invalid_client_addr(dev, apdev):
"""RADIUS client address specified and invalid address"""
params = hostapd.wpa2_eap_params(ssid="radius-auth")
#params['radius_client_addr'] = "10.11.12.14"
params['radius_client_addr'] = "1::2"
hapd = hostapd.add_ap(apdev[0], params)
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")
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=1)
if ev is not None:
raise Exception("Unexpected connection")
def add_message_auth(req):
req.authenticator = req.CreateAuthenticator()
hmac_obj = hmac.new(req.secret)
hmac_obj.update(struct.pack("B", req.code))
hmac_obj.update(struct.pack("B", req.id))
# request attributes
req.AddAttribute("Message-Authenticator", 16*b"\x00")
attrs = req._PktEncodeAttributes()
# Length
flen = 4 + 16 + len(attrs)
hmac_obj.update(struct.pack(">H", flen))
hmac_obj.update(req.authenticator)
hmac_obj.update(attrs)
del req[80]
req.AddAttribute("Message-Authenticator", hmac_obj.digest())
def test_radius_server_failures(dev, apdev):
"""RADIUS server failure cases"""
try:
import pyrad.client
import pyrad.packet
import pyrad.dictionary
except ImportError:
raise HwsimSkip("No pyrad modules available")
dict = pyrad.dictionary.Dictionary("dictionary.radius")
client = pyrad.client.Client(server="127.0.0.1", authport=1812,
secret=b"radius", dict=dict)
client.retries = 1
client.timeout = 1
# unexpected State
req = client.CreateAuthPacket(code=pyrad.packet.AccessRequest,
User_Name="foo")
req['State'] = b'foo-state'
add_message_auth(req)
reply = client.SendPacket(req)
if reply.code != pyrad.packet.AccessReject:
raise Exception("Unexpected RADIUS response code " + str(reply.code))
# no EAP-Message
req = client.CreateAuthPacket(code=pyrad.packet.AccessRequest,
User_Name="foo")
add_message_auth(req)
try:
reply = client.SendPacket(req)
raise Exception("Unexpected response")
except pyrad.client.Timeout:
pass
def test_ap_vlan_wpa2_psk_radius_required(dev, apdev):
"""AP VLAN with WPA2-PSK and RADIUS attributes required"""
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
secret = reply.secret
if self.t_events['extra'].is_set():
reply.AddAttribute("Chargeable-User-Identity", "test-cui")
reply.AddAttribute("User-Name", "test-user")
if self.t_events['long'].is_set():
reply.AddAttribute("Tunnel-Type", 13)
reply.AddAttribute("Tunnel-Medium-Type", 6)
reply.AddAttribute("Tunnel-Private-Group-ID", "1")
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 pyrad.server.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")
for fd in self.authfds + self.acctfds:
fd.close()
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",
b"radius",
"localhost")
srv.BindToAddress("")
t_events = {}
t_events['stop'] = threading.Event()
t_events['long'] = threading.Event()
t_events['extra'] = 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['dynamic_vlan'] = "2"
params['wpa_passphrase'] = '0123456789abcdefghi'
params['auth_server_port'] = "18138"
hapd = hostapd.add_ap(apdev[0], params)
logger.info("connecting without VLAN")
dev[0].connect(ssid, psk="0123456789abcdefghi", scan_freq="2412",
wait_connect=False)
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED",
"CTRL-EVENT-SSID-TEMP-DISABLED"], timeout=20)
if ev is None:
raise Exception("Timeout on connection attempt")
if "CTRL-EVENT-CONNECTED" in ev:
raise Exception("Unexpected success without vlan parameters")
logger.info("connecting without VLAN failed as expected")
logger.info("connecting without VLAN (CUI/User-Name)")
t_events['extra'].set()
dev[1].connect(ssid, psk="0123456789abcdefghi", scan_freq="2412",
wait_connect=False)
ev = dev[1].wait_event(["CTRL-EVENT-CONNECTED",
"CTRL-EVENT-SSID-TEMP-DISABLED"], timeout=20)
if ev is None:
raise Exception("Timeout on connection attempt")
if "CTRL-EVENT-CONNECTED" in ev:
raise Exception("Unexpected success without vlan parameters(2)")
logger.info("connecting without VLAN failed as expected(2)")
t_events['extra'].clear()
t_events['long'].set()
logger.info("connecting with VLAN")
dev[2].connect(ssid, psk="0123456789abcdefghi", scan_freq="2412",
wait_connect=False)
ev = dev[2].wait_event(["CTRL-EVENT-CONNECTED",
"CTRL-EVENT-SSID-TEMP-DISABLED"], timeout=20)
if ev is None:
raise Exception("Timeout on connection attempt")
if "CTRL-EVENT-SSID-TEMP-DISABLED" in ev:
raise Exception("Unexpected failure with vlan parameters")
logger.info("connecting with VLAN succeeded as expected")
finally:
t_events['stop'].set()
t.join()
def test_radius_mppe_failure(dev, apdev):
"""RADIUS failure when adding MPPE keys"""
params = {"ssid": "as", "beacon_int": "2000",
"radius_server_clients": "auth_serv/radius_clients.conf",
"radius_server_auth_port": '18127',
"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"}
authsrv = hostapd.add_ap(apdev[1], params)
params = hostapd.wpa2_eap_params(ssid="test-wpa2-eap")
params['auth_server_port'] = "18127"
hapd = hostapd.add_ap(apdev[0], params)
with fail_test(authsrv, 1, "os_get_random;radius_msg_add_mppe_keys"):
dev[0].connect("test-wpa2-eap", key_mgmt="WPA-EAP", eap="TTLS",
identity="user", anonymous_identity="ttls",
password="password",
ca_cert="auth_serv/ca.pem", phase2="autheap=GTC",
wait_connect=False, scan_freq="2412")
dev[0].wait_disconnected()
dev[0].request("REMOVE_NETWORK all")
def test_radius_acct_failure(dev, apdev):
"""RADIUS Accounting and failure to add attributes"""
# Connection goes through, but Accounting-Request cannot be sent out due to
# NAS-Identifier being too long to fit into a RADIUS attribute.
params = {"ssid": "radius-acct-open",
'acct_server_addr': "127.0.0.1",
'acct_server_port': "1813",
'acct_server_shared_secret': "radius",
'nas_identifier': 255*'A'}
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect("radius-acct-open", key_mgmt="NONE", scan_freq="2412")
def test_radius_acct_failure_oom(dev, apdev):
"""RADIUS Accounting and failure to add attributes due to OOM"""
params = {"ssid": "radius-acct-open",
'acct_server_addr': "127.0.0.1",
'acct_server_port': "1813",
'acct_server_shared_secret': "radius",
'radius_acct_interim_interval': "1",
'nas_identifier': 250*'A',
'radius_acct_req_attr': ["126:s:" + 250*'B',
"77:s:" + 250*'C',
"127:s:" + 250*'D',
"181:s:" + 250*'E']}
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
with alloc_fail(hapd, 1, "radius_msg_add_attr;?radius_msg_add_attr_int32;=accounting_msg"):
dev[0].connect("radius-acct-open", key_mgmt="NONE", scan_freq="2412")
wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected()
dev[1].scan_for_bss(bssid, freq="2412")
with alloc_fail(hapd, 1, "accounting_sta_report"):
dev[1].connect("radius-acct-open", key_mgmt="NONE", scan_freq="2412")
wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
dev[1].request("REMOVE_NETWORK all")
dev[1].wait_disconnected()
tests = [(1, "radius_msg_add_attr;?radius_msg_add_attr_int32;=accounting_msg"),
(2, "radius_msg_add_attr;accounting_msg"),
(3, "radius_msg_add_attr;accounting_msg")]
for count, func in tests:
with fail_test(hapd, count, func):
dev[0].connect("radius-acct-open", key_mgmt="NONE",
scan_freq="2412")
wait_fail_trigger(hapd, "GET_FAIL")
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected()
dev[0].connect("radius-acct-open", key_mgmt="NONE", scan_freq="2412")
with fail_test(hapd, 8,
"radius_msg_add_attr;?radius_msg_add_attr_int32;=accounting_sta_report"):
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected()
wait_fail_trigger(hapd, "GET_FAIL")
with fail_test(hapd, 1, "radius_msg_add_attr;=accounting_report_state"):
hapd.disable()
def test_radius_acct_failure_oom_rsn(dev, apdev):
"""RADIUS Accounting in RSN and failure to add attributes due to OOM"""
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"
params['nas_identifier'] = 250*'A'
params['radius_acct_req_attr'] = ["126:s:" + 250*'B',
"77:s:" + 250*'C',
"127:s:" + 250*'D',
"181:s:" + 250*'E']
hapd = hostapd.add_ap(apdev[0], params)
bssid = hapd.own_addr()
dev[0].scan_for_bss(bssid, freq="2412")
with alloc_fail(hapd, 1, "radius_msg_add_attr;?radius_msg_add_attr_int32;=accounting_msg"):
connect(dev[0], "radius-acct")
wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
dev[1].scan_for_bss(bssid, freq="2412")
with alloc_fail(hapd, 1, "accounting_sta_report"):
connect(dev[1], "radius-acct")
wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
dev[2].scan_for_bss(bssid, freq="2412")
connect(dev[2], "radius-acct")
for i in range(1, 8):
with alloc_fail(hapd, i, "radius_msg_add_attr;?radius_msg_add_attr_int32;=accounting_msg"):
wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
for i in range(1, 15):
with alloc_fail(hapd, i, "radius_msg_add_attr;?radius_msg_add_attr_int32;=accounting_sta_report"):
wait_fail_trigger(hapd, "GET_ALLOC_FAIL")
def test_radius_acct_failure_sta_data(dev, apdev):
"""RADIUS Accounting and failure to get STA data"""
params = {"ssid": "radius-acct-open",
'acct_server_addr': "127.0.0.1",
'acct_server_port': "1813",
'acct_server_shared_secret': "radius"}
hapd = hostapd.add_ap(apdev[0], params)
with fail_test(hapd, 1, "accounting_sta_update_stats"):
dev[0].connect("radius-acct-open", key_mgmt="NONE", scan_freq="2412")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
hapd.wait_event(["AP-STA-DISCONNECTED"], timeout=1)
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