1 # Hotspot 2.0 filtering tests
2 # Copyright (c) 2015, Intel Deutschland GmbH
4 # This software may be distributed under the terms of the BSD license.
5 # See README for more details.
12 from utils import HwsimSkip, require_under_vm
15 from test_ap_hs20 import build_arp, build_na, hs20_ap_params
16 from test_ap_hs20 import interworking_select, interworking_connect
19 logger = logging.getLogger()
21 class IPAssign(object):
22 def __init__(self, iface, addr, ipv6=False):
27 self._cmd.append('-6')
28 self._cmd.append('addr')
31 subprocess.call(self._cmd + ['add', self._addr, 'dev', self._iface])
33 # wait for DAD to finish
35 o = subprocess.check_output(self._cmd + ['show', 'tentative', 'dev', self._iface])
36 if not self._addr in o:
39 def __exit__(self, type, value, traceback):
40 subprocess.call(self._cmd + ['del', self._addr, 'dev', self._iface])
42 def hs20_filters_connect(dev, apdev, disable_dgaf=False, proxy_arp=False):
43 bssid = apdev[0]['bssid']
44 params = hs20_ap_params()
45 params['hessid'] = bssid
47 # Do not disable dgaf, to test that the station drops unicast IP packets
49 params['disable_dgaf'] = '0'
50 params['proxy_arp'] = '1'
51 params['ap_isolate'] = '1'
52 params['bridge'] = 'ap-br0'
55 hapd = hostapd.add_ap(apdev[0], params)
57 # For now, do not report failures due to missing kernel support.
58 raise HwsimSkip("Could not start hostapd - assume proxyarp not supported in the kernel")
60 subprocess.call(['brctl', 'setfd', 'ap-br0', '0'])
61 subprocess.call(['ip', 'link', 'set', 'dev', 'ap-br0', 'up'])
65 id = dev[0].add_cred_values({ 'realm': "example.com",
66 'username': "hs20-test",
67 'password': "password",
68 'ca_cert': "auth_serv/ca.pem",
69 'domain': "example.com",
70 'update_identifier': "1234" })
71 interworking_select(dev[0], bssid, "home", freq="2412")
72 interworking_connect(dev[0], bssid, "TTLS")
78 def _test_ip4_gtk_drop(devs, apdevs, params, dst):
80 procfile = '/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast' % devs[0].ifname
81 if not os.path.exists(procfile):
82 raise HwsimSkip("kernel doesn't have capability")
84 [dev, hapd] = hs20_filters_connect(devs, apdevs)
85 with IPAssign(dev.ifname, '10.0.0.1/24'):
86 s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
87 s.bind(("10.0.0.1", 12345))
91 pkt += hapd.own_addr().replace(':', '')
93 pkt += '45000020786840004011ae600a0000040a000001'
94 pkt += '30393039000c0000'
95 pkt += '61736466' # "asdf"
96 if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
97 raise Exception("DATA_TEST_FRAME failed")
99 logger.info(s.recvfrom(1024))
100 logger.info("procfile=" + procfile + " val=" + open(procfile,'r').read().rstrip())
101 raise Exception("erroneously received frame!")
102 except socket.timeout:
103 # this is the expected behaviour
106 def test_ip4_gtk_drop_bcast(devs, apdevs, params):
107 _test_ip4_gtk_drop(devs, apdevs, params, dst='ffffffffffff')
109 def test_ip4_gtk_drop_mcast(devs, apdevs, params):
110 _test_ip4_gtk_drop(devs, apdevs, params, dst='ff0000000000')
112 def _test_ip6_gtk_drop(devs, apdevs, params, dst):
115 procfile = '/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast' % devs[0].ifname
116 if not os.path.exists(procfile):
117 raise HwsimSkip("kernel doesn't have capability")
119 [dev, hapd] = hs20_filters_connect(devs, apdevs)
121 with IPAssign(dev.ifname, 'fdaa::1/48', ipv6=True):
122 s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
123 s.bind(("fdaa::1", 12345))
127 pkt += hapd.own_addr().replace(':', '')
129 pkt += '60000000000c1140fdaa0000000000000000000000000002fdaa0000000000000000000000000001'
130 pkt += '30393039000cde31'
131 pkt += '61736466' # "asdf"
132 if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
133 raise Exception("DATA_TEST_FRAME failed")
135 logger.info(s.recvfrom(1024))
136 logger.info("procfile=" + procfile + " val=" + open(procfile,'r').read().rstrip())
137 raise Exception("erroneously received frame!")
138 except socket.timeout:
139 # this is the expected behaviour
142 def test_ip6_gtk_drop_bcast(devs, apdevs, params):
143 _test_ip6_gtk_drop(devs, apdevs, params, dst='ffffffffffff')
145 def test_ip6_gtk_drop_mcast(devs, apdevs, params):
146 _test_ip6_gtk_drop(devs, apdevs, params, dst='ff0000000000')
148 def test_ip4_drop_gratuitous_arp(devs, apdevs, params):
150 procfile = '/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp' % devs[0].ifname
151 if not os.path.exists(procfile):
152 raise HwsimSkip("kernel doesn't have capability")
154 [dev, hapd] = hs20_filters_connect(devs, apdevs)
156 with IPAssign(dev.ifname, '10.0.0.2/24'):
157 # add an entry that can be updated by gratuitous ARP
158 subprocess.call(['ip', 'neigh', 'add', '10.0.0.1', 'lladdr', '02:00:00:00:00:ff', 'nud', 'reachable', 'dev', dev.ifname])
162 ap_addr = hapd.own_addr()
163 cl_addr = dev.own_addr()
164 pkt = build_arp(cl_addr, ap_addr, 2, ap_addr, '10.0.0.1', ap_addr, '10.0.0.1')
165 pkt = binascii.hexlify(pkt)
167 if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
168 raise Exception("DATA_TEST_FRAME failed")
170 if hapd.own_addr() in subprocess.check_output(['ip', 'neigh', 'show']):
171 raise Exception("gratuitous ARP frame updated erroneously")
173 subprocess.call(['ip', 'neigh', 'del', '10.0.0.1', 'dev', dev.ifname])
175 def test_ip6_drop_unsolicited_na(devs, apdevs, params):
177 procfile = '/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na' % devs[0].ifname
178 if not os.path.exists(procfile):
179 raise HwsimSkip("kernel doesn't have capability")
181 [dev, hapd] = hs20_filters_connect(devs, apdevs)
183 with IPAssign(dev.ifname, 'fdaa::1/48', ipv6=True):
184 # add an entry that can be updated by unsolicited NA
185 subprocess.call(['ip', '-6', 'neigh', 'add', 'fdaa::2', 'lladdr', '02:00:00:00:00:ff', 'nud', 'reachable', 'dev', dev.ifname])
187 ap_addr = hapd.own_addr()
188 cl_addr = dev.own_addr()
189 pkt = build_na(ap_addr, 'fdaa::2', 'ff02::1', 'fdaa::2', flags=0x20,
190 opt=binascii.unhexlify('0201' + ap_addr.replace(':', '')))
191 pkt = binascii.hexlify(pkt)
193 if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
194 raise Exception("DATA_TEST_FRAME failed")
196 if hapd.own_addr() in subprocess.check_output(['ip', 'neigh', 'show']):
197 raise Exception("unsolicited NA frame updated erroneously")
199 subprocess.call(['ip', '-6', 'neigh', 'del', 'fdaa::2', 'dev', dev.ifname])