mirror of
https://github.com/vanhoefm/fragattacks.git
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6a188ba3fc
radius_{auth,acct}_unreachable tested some parts of RADIUS client code
error handling. However, they did not test everything since the send()
calls for unreachable port on localhost did not return an error (that
error was reported on receive side). Extend this with similar test cases
using unreachable IP address to get send() error returns covered as
well.
Signed-off-by: Jouni Malinen <j@w1.fi>
530 lines
23 KiB
Python
530 lines
23 KiB
Python
# RADIUS tests
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# Copyright (c) 2013-2014, Jouni Malinen <j@w1.fi>
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#
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# This software may be distributed under the terms of the BSD license.
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# See README for more details.
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import logging
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logger = logging.getLogger()
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import subprocess
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import time
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import hostapd
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def connect(dev, ssid, wait_connect=True):
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dev.connect(ssid, key_mgmt="WPA-EAP", scan_freq="2412",
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eap="PSK", identity="psk.user@example.com",
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password_hex="0123456789abcdef0123456789abcdef",
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wait_connect=wait_connect)
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def test_radius_auth_unreachable(dev, apdev):
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"""RADIUS Authentication server unreachable"""
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params = hostapd.wpa2_eap_params(ssid="radius-auth")
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params['auth_server_port'] = "18139"
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hostapd.add_ap(apdev[0]['ifname'], params)
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hapd = hostapd.Hostapd(apdev[0]['ifname'])
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connect(dev[0], "radius-auth", wait_connect=False)
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ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED"])
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if ev is None:
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raise Exception("Timeout on EAP start")
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logger.info("Checking for RADIUS retries")
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time.sleep(4)
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mib = hapd.get_mib()
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if "radiusAuthClientAccessRequests" not in mib:
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raise Exception("Missing MIB fields")
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if int(mib["radiusAuthClientAccessRetransmissions"]) < 1:
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raise Exception("Missing RADIUS Authentication retransmission")
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if int(mib["radiusAuthClientPendingRequests"]) < 1:
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raise Exception("Missing pending RADIUS Authentication request")
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def test_radius_auth_unreachable2(dev, apdev):
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"""RADIUS Authentication server unreachable (2)"""
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subprocess.call(['sudo', 'ip', 'ro', 'replace', '192.168.213.17', 'dev',
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'lo'])
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params = hostapd.wpa2_eap_params(ssid="radius-auth")
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params['auth_server_addr'] = "192.168.213.17"
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params['auth_server_port'] = "18139"
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hostapd.add_ap(apdev[0]['ifname'], params)
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hapd = hostapd.Hostapd(apdev[0]['ifname'])
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subprocess.call(['sudo', 'ip', 'ro', 'del', '192.168.213.17', 'dev', 'lo'])
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connect(dev[0], "radius-auth", wait_connect=False)
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ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED"])
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if ev is None:
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raise Exception("Timeout on EAP start")
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logger.info("Checking for RADIUS retries")
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time.sleep(4)
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mib = hapd.get_mib()
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if "radiusAuthClientAccessRequests" not in mib:
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raise Exception("Missing MIB fields")
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if int(mib["radiusAuthClientAccessRetransmissions"]) < 1:
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raise Exception("Missing RADIUS Authentication retransmission")
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def test_radius_acct_unreachable(dev, apdev):
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"""RADIUS Accounting server unreachable"""
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params = hostapd.wpa2_eap_params(ssid="radius-acct")
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params['acct_server_addr'] = "127.0.0.1"
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params['acct_server_port'] = "18139"
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params['acct_server_shared_secret'] = "radius"
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hostapd.add_ap(apdev[0]['ifname'], params)
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hapd = hostapd.Hostapd(apdev[0]['ifname'])
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connect(dev[0], "radius-acct")
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logger.info("Checking for RADIUS retries")
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time.sleep(4)
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mib = hapd.get_mib()
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if "radiusAccClientRetransmissions" not in mib:
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raise Exception("Missing MIB fields")
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if int(mib["radiusAccClientRetransmissions"]) < 2:
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raise Exception("Missing RADIUS Accounting retransmissions")
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if int(mib["radiusAccClientPendingRequests"]) < 2:
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raise Exception("Missing pending RADIUS Accounting requests")
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def test_radius_acct_unreachable2(dev, apdev):
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"""RADIUS Accounting server unreachable(2)"""
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subprocess.call(['sudo', 'ip', 'ro', 'replace', '192.168.213.17', 'dev',
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'lo'])
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params = hostapd.wpa2_eap_params(ssid="radius-acct")
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params['acct_server_addr'] = "192.168.213.17"
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params['acct_server_port'] = "18139"
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params['acct_server_shared_secret'] = "radius"
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hostapd.add_ap(apdev[0]['ifname'], params)
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hapd = hostapd.Hostapd(apdev[0]['ifname'])
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subprocess.call(['sudo', 'ip', 'ro', 'del', '192.168.213.17', 'dev', 'lo'])
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connect(dev[0], "radius-acct")
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logger.info("Checking for RADIUS retries")
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time.sleep(4)
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mib = hapd.get_mib()
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if "radiusAccClientRetransmissions" not in mib:
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raise Exception("Missing MIB fields")
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if int(mib["radiusAccClientRetransmissions"]) < 1 and int(mib["radiusAccClientPendingRequests"]) < 1:
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raise Exception("Missing pending or retransmitted RADIUS Accounting requests")
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def test_radius_acct(dev, apdev):
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"""RADIUS Accounting"""
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as_hapd = hostapd.Hostapd("as")
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as_mib_start = as_hapd.get_mib(param="radius_server")
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params = hostapd.wpa2_eap_params(ssid="radius-acct")
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params['acct_server_addr'] = "127.0.0.1"
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params['acct_server_port'] = "1813"
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params['acct_server_shared_secret'] = "radius"
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params['radius_auth_req_attr'] = [ "126:s:Operator", "77:s:testing" ]
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params['radius_acct_req_attr'] = [ "126:s:Operator", "77:s:testing" ]
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hostapd.add_ap(apdev[0]['ifname'], params)
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hapd = hostapd.Hostapd(apdev[0]['ifname'])
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connect(dev[0], "radius-acct")
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dev[1].connect("radius-acct", key_mgmt="WPA-EAP", scan_freq="2412",
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eap="PAX", identity="test-class",
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password_hex="0123456789abcdef0123456789abcdef")
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dev[2].connect("radius-acct", key_mgmt="WPA-EAP",
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eap="GPSK", identity="gpsk-cui",
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password="abcdefghijklmnop0123456789abcdef",
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scan_freq="2412")
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logger.info("Checking for RADIUS counters")
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count = 0
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while True:
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mib = hapd.get_mib()
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if int(mib['radiusAccClientResponses']) >= 3:
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break
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time.sleep(0.1)
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count += 1
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if count > 10:
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raise Exception("Did not receive Accounting-Response packets")
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if int(mib['radiusAccClientRetransmissions']) > 0:
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raise Exception("Unexpected Accounting-Request retransmission")
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as_mib_end = as_hapd.get_mib(param="radius_server")
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req_s = int(as_mib_start['radiusAccServTotalRequests'])
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req_e = int(as_mib_end['radiusAccServTotalRequests'])
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if req_e < req_s + 2:
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raise Exception("Unexpected RADIUS server acct MIB value")
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acc_s = int(as_mib_start['radiusAuthServAccessAccepts'])
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acc_e = int(as_mib_end['radiusAuthServAccessAccepts'])
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if acc_e < acc_s + 1:
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raise Exception("Unexpected RADIUS server auth MIB value")
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def test_radius_acct_interim(dev, apdev):
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"""RADIUS Accounting interim update"""
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as_hapd = hostapd.Hostapd("as")
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params = hostapd.wpa2_eap_params(ssid="radius-acct")
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params['acct_server_addr'] = "127.0.0.1"
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params['acct_server_port'] = "1813"
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params['acct_server_shared_secret'] = "radius"
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params['radius_acct_interim_interval'] = "1"
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hostapd.add_ap(apdev[0]['ifname'], params)
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hapd = hostapd.Hostapd(apdev[0]['ifname'])
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connect(dev[0], "radius-acct")
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logger.info("Checking for RADIUS counters")
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as_mib_start = as_hapd.get_mib(param="radius_server")
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time.sleep(3.1)
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as_mib_end = as_hapd.get_mib(param="radius_server")
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req_s = int(as_mib_start['radiusAccServTotalRequests'])
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req_e = int(as_mib_end['radiusAccServTotalRequests'])
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if req_e < req_s + 3:
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raise Exception("Unexpected RADIUS server acct MIB value")
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def test_radius_das_disconnect(dev, apdev):
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"""RADIUS Dynamic Authorization Extensions - Disconnect"""
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try:
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import pyrad.client
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import pyrad.packet
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import pyrad.dictionary
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import radius_das
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except ImportError:
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return "skip"
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params = hostapd.wpa2_eap_params(ssid="radius-das")
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params['radius_das_port'] = "3799"
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params['radius_das_client'] = "127.0.0.1 secret"
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params['radius_das_require_event_timestamp'] = "1"
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params['own_ip_addr'] = "127.0.0.1"
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params['nas_identifier'] = "nas.example.com"
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hapd = hostapd.add_ap(apdev[0]['ifname'], params)
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connect(dev[0], "radius-das")
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addr = dev[0].p2p_interface_addr()
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sta = hapd.get_sta(addr)
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id = sta['dot1xAuthSessionId']
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dict = pyrad.dictionary.Dictionary("dictionary.radius")
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srv = pyrad.client.Client(server="127.0.0.1", acctport=3799,
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secret="secret", dict=dict)
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srv.retries = 1
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srv.timeout = 1
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logger.info("Disconnect-Request with incorrect secret")
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req = radius_das.DisconnectPacket(dict=dict, secret="incorrect",
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User_Name="foo",
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NAS_Identifier="localhost",
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Event_Timestamp=int(time.time()))
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logger.debug(req)
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try:
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reply = srv.SendPacket(req)
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raise Exception("Unexpected response to Disconnect-Request")
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except pyrad.client.Timeout:
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logger.info("Disconnect-Request with incorrect secret properly ignored")
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logger.info("Disconnect-Request without Event-Timestamp")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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User_Name="psk.user@example.com")
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logger.debug(req)
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try:
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reply = srv.SendPacket(req)
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raise Exception("Unexpected response to Disconnect-Request")
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except pyrad.client.Timeout:
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logger.info("Disconnect-Request without Event-Timestamp properly ignored")
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logger.info("Disconnect-Request with non-matching Event-Timestamp")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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User_Name="psk.user@example.com",
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Event_Timestamp=123456789)
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logger.debug(req)
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try:
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reply = srv.SendPacket(req)
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raise Exception("Unexpected response to Disconnect-Request")
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except pyrad.client.Timeout:
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logger.info("Disconnect-Request with non-matching Event-Timestamp properly ignored")
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logger.info("Disconnect-Request with unsupported attribute")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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User_Name="foo",
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User_Password="foo",
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectNAK:
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raise Exception("Unexpected response code")
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if 'Error-Cause' not in reply:
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raise Exception("Missing Error-Cause")
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if reply['Error-Cause'][0] != 401:
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raise Exception("Unexpected Error-Cause: {}".format(reply['Error-Cause']))
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logger.info("Disconnect-Request with invalid Calling-Station-Id")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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User_Name="foo",
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Calling_Station_Id="foo",
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectNAK:
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raise Exception("Unexpected response code")
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if 'Error-Cause' not in reply:
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raise Exception("Missing Error-Cause")
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if reply['Error-Cause'][0] != 407:
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raise Exception("Unexpected Error-Cause: {}".format(reply['Error-Cause']))
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logger.info("Disconnect-Request with mismatching User-Name")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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User_Name="foo",
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectNAK:
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raise Exception("Unexpected response code")
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if 'Error-Cause' not in reply:
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raise Exception("Missing Error-Cause")
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if reply['Error-Cause'][0] != 503:
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raise Exception("Unexpected Error-Cause: {}".format(reply['Error-Cause']))
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logger.info("Disconnect-Request with mismatching Calling-Station-Id")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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Calling_Station_Id="12:34:56:78:90:aa",
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectNAK:
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raise Exception("Unexpected response code")
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if 'Error-Cause' not in reply:
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raise Exception("Missing Error-Cause")
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if reply['Error-Cause'][0] != 503:
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raise Exception("Unexpected Error-Cause: {}".format(reply['Error-Cause']))
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logger.info("Disconnect-Request with mismatching Acct-Session-Id")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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Acct_Session_Id="12345678-87654321",
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectNAK:
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raise Exception("Unexpected response code")
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if 'Error-Cause' not in reply:
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raise Exception("Missing Error-Cause")
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if reply['Error-Cause'][0] != 503:
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raise Exception("Unexpected Error-Cause: {}".format(reply['Error-Cause']))
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ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
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if ev is not None:
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raise Exception("Unexpected disconnection")
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logger.info("Disconnect-Request with mismatching NAS-IP-Address")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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NAS_IP_Address="192.168.3.4",
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Acct_Session_Id=id,
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectNAK:
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raise Exception("Unexpected response code")
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if 'Error-Cause' not in reply:
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raise Exception("Missing Error-Cause")
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if reply['Error-Cause'][0] != 403:
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raise Exception("Unexpected Error-Cause: {}".format(reply['Error-Cause']))
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logger.info("Disconnect-Request with mismatching NAS-Identifier")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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NAS_Identifier="unknown.example.com",
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Acct_Session_Id=id,
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectNAK:
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raise Exception("Unexpected response code")
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if 'Error-Cause' not in reply:
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raise Exception("Missing Error-Cause")
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if reply['Error-Cause'][0] != 403:
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raise Exception("Unexpected Error-Cause: {}".format(reply['Error-Cause']))
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ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
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if ev is not None:
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raise Exception("Unexpected disconnection")
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logger.info("Disconnect-Request with matching Acct-Session-Id")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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NAS_IP_Address="127.0.0.1",
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NAS_Identifier="nas.example.com",
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Acct_Session_Id=id,
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectACK:
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raise Exception("Unexpected response code")
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ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"])
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if ev is None:
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raise Exception("Timeout while waiting for disconnection")
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ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"])
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if ev is None:
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raise Exception("Timeout while waiting for re-connection")
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logger.info("Disconnect-Request with matching User-Name")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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NAS_Identifier="nas.example.com",
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User_Name="psk.user@example.com",
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectACK:
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raise Exception("Unexpected response code")
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ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"])
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if ev is None:
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raise Exception("Timeout while waiting for disconnection")
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ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"])
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if ev is None:
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raise Exception("Timeout while waiting for re-connection")
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logger.info("Disconnect-Request with matching Calling-Station-Id")
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req = radius_das.DisconnectPacket(dict=dict, secret="secret",
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NAS_IP_Address="127.0.0.1",
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Calling_Station_Id=addr,
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Event_Timestamp=int(time.time()))
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reply = srv.SendPacket(req)
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logger.debug("RADIUS response from hostapd")
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for i in reply.keys():
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logger.debug("%s: %s" % (i, reply[i]))
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if reply.code != pyrad.packet.DisconnectACK:
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raise Exception("Unexpected response code")
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ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"])
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if ev is None:
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raise Exception("Timeout while waiting for disconnection")
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ev = dev[0].wait_event(["CTRL-EVENT-EAP-STARTED", "CTRL-EVENT-CONNECTED"])
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if ev is None:
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raise Exception("Timeout while waiting for re-connection")
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if "CTRL-EVENT-EAP-STARTED" not in ev:
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raise Exception("Unexpected skipping of EAP authentication in reconnection")
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ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"])
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if ev is None:
|
|
raise Exception("Timeout while waiting for re-connection to complete")
|
|
|
|
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()))
|
|
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 != pyrad.packet.DisconnectACK:
|
|
raise Exception("Unexpected response code")
|
|
|
|
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"])
|
|
if ev is None:
|
|
raise Exception("Timeout while waiting for disconnection")
|
|
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"])
|
|
if ev is None:
|
|
raise Exception("Timeout while waiting for re-connection")
|
|
|
|
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()))
|
|
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 != pyrad.packet.DisconnectACK:
|
|
raise Exception("Unexpected response code")
|
|
|
|
ev = dev[1].wait_event(["CTRL-EVENT-DISCONNECTED"])
|
|
if ev is None:
|
|
raise Exception("Timeout while waiting for disconnection")
|
|
ev = dev[1].wait_event(["CTRL-EVENT-CONNECTED"])
|
|
if ev is None:
|
|
raise Exception("Timeout while waiting for re-connection")
|
|
|
|
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
|
|
if ev is not None:
|
|
raise Exception("Unexpected disconnection")
|
|
|
|
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:
|
|
return "skip"
|
|
|
|
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()))
|
|
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 != pyrad.packet.CoANAK:
|
|
raise Exception("Unexpected response code")
|
|
if 'Error-Cause' not in reply:
|
|
raise Exception("Missing Error-Cause")
|
|
if reply['Error-Cause'][0] != 405:
|
|
raise Exception("Unexpected Error-Cause: {}".format(reply['Error-Cause']))
|
|
|
|
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")
|