[PATCH] tests: add tests for HS 2.0 frame filtering
Johannes Berg
johannes at sipsolutions.net
Fri Nov 27 05:15:26 PST 2015
From: Johannes Berg <johannes.berg at intel.com>
Signed-off-by: Johannes Berg <johannes.berg at intel.com>
---
This requires four kernel patches that I've posted, so far
I haven't heard anything about them.
---
tests/hwsim/test_ap_hs20.py | 7 +-
tests/hwsim/test_hs20_filter.py | 218 ++++++++++++++++++++++++++++++++++++++++
2 files changed, 221 insertions(+), 4 deletions(-)
create mode 100644 tests/hwsim/test_hs20_filter.py
diff --git a/tests/hwsim/test_ap_hs20.py b/tests/hwsim/test_ap_hs20.py
index e7c818cae912..97d13f89abdb 100644
--- a/tests/hwsim/test_ap_hs20.py
+++ b/tests/hwsim/test_ap_hs20.py
@@ -2876,7 +2876,7 @@ def send_ns(dev, src_ll=None, target=None, ip_src=None, ip_dst=None, opt=None,
if "OK" not in dev.request(cmd + binascii.hexlify(pkt)):
raise Exception("DATA_TEST_FRAME failed")
-def build_na(src_ll, ip_src, ip_dst, target, opt=None):
+def build_na(src_ll, ip_src, ip_dst, target, opt=None, flags=0):
link_mc = binascii.unhexlify("3333ff000002")
_src_ll = binascii.unhexlify(src_ll.replace(':',''))
proto = '\x86\xdd'
@@ -2884,12 +2884,11 @@ def build_na(src_ll, ip_src, ip_dst, target, opt=None):
_ip_src = socket.inet_pton(socket.AF_INET6, ip_src)
_ip_dst = socket.inet_pton(socket.AF_INET6, ip_dst)
- reserved = '\x00\x00\x00\x00'
_target = socket.inet_pton(socket.AF_INET6, target)
if opt:
- payload = reserved + _target + opt
+ payload = struct.pack('>Bxxx', flags) + _target + opt
else:
- payload = reserved + _target
+ payload = struct.pack('>Bxxx', flags) + _target
icmp = build_icmpv6(_ip_src + _ip_dst, 136, 0, payload)
ipv6 = struct.pack('>BBBBHBB', 0x60, 0, 0, 0, len(icmp), 58, 255)
diff --git a/tests/hwsim/test_hs20_filter.py b/tests/hwsim/test_hs20_filter.py
new file mode 100644
index 000000000000..d17b03fb4319
--- /dev/null
+++ b/tests/hwsim/test_hs20_filter.py
@@ -0,0 +1,218 @@
+# Hotspot 2.0 filtering tests
+# Copyright (c) 2015, Intel Deutschland GmbH
+#
+# This software may be distributed under the terms of the BSD license.
+# See README for more details.
+
+import hostapd
+import hwsim_utils
+import socket
+import subprocess
+import binascii
+from utils import HwsimSkip, require_under_vm
+import os
+import time
+from test_ap_hs20 import build_arp, build_na
+import struct
+
+class IPAssign(object):
+ def __init__(self, iface, addr, ipv6=False):
+ self._iface = iface
+ self._addr = addr
+ self._cmd = ['ip']
+ if ipv6:
+ self._cmd.append('-6')
+ self._cmd.append('addr')
+ self._ipv6 = ipv6
+ def __enter__(self):
+ subprocess.call(self._cmd + ['add', self._addr, 'dev', self._iface])
+ if self._ipv6:
+ # wait for DAD to finish
+ while True:
+ o = subprocess.check_output(self._cmd + ['show', 'tentative', 'dev', self._iface])
+ if not self._addr in o:
+ break
+ time.sleep(0.1)
+ def __exit__(self, type, value, traceback):
+ subprocess.call(self._cmd + ['del', self._addr, 'dev', self._iface])
+
+def _test_ip4_gtk_drop(devs, apdevs, params, dst):
+ require_under_vm()
+ dev = devs[0]
+ procfile = '/proc/sys/net/ipv4/conf/%s/drop_unicast_in_l2_multicast' % dev.ifname
+ if not os.path.exists(procfile):
+ raise HwsimSkip("kernel doesn't have capability")
+
+ ap_params = { 'ssid': 'open', 'channel': '5' }
+ hapd = hostapd.add_ap(apdevs[0]['ifname'], ap_params)
+ dev.connect('open', key_mgmt="NONE", scan_freq="2432")
+
+ with IPAssign(dev.ifname, '10.0.0.1/24'):
+ s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+ s.bind(("10.0.0.1", 12345))
+ s.settimeout(0.1)
+
+ pkt = dst
+ pkt += hapd.own_addr().replace(':', '')
+ pkt += '0800'
+ pkt += '45000020786840004011ae600a0000040a000001'
+ pkt += '30393039000c0000'
+ pkt += '61736466' # "asdf"
+ if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
+ raise Exception("DATA_TEST_FRAME failed")
+
+ data, addr = s.recvfrom(1024)
+ if data != 'asdf':
+ raise Exception("invalid data received")
+
+ open(procfile, 'w').write('1')
+ try:
+ if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
+ raise Exception("DATA_TEST_FRAME failed")
+
+ try:
+ print s.recvfrom(1024)
+ raise Exception("erroneously received frame!")
+ except socket.timeout:
+ # this is the expected behaviour
+ pass
+ finally:
+ open(procfile, 'w').write('0')
+
+def test_ip4_gtk_drop_bcast(devs, apdevs, params):
+ _test_ip4_gtk_drop(devs, apdevs, params, dst='ffffffffffff')
+
+def test_ip4_gtk_drop_mcast(devs, apdevs, params):
+ _test_ip4_gtk_drop(devs, apdevs, params, dst='ff0000000000')
+
+def _test_ip6_gtk_drop(devs, apdevs, params, dst):
+ require_under_vm()
+ dev = devs[0]
+ procfile = '/proc/sys/net/ipv6/conf/%s/drop_unicast_in_l2_multicast' % dev.ifname
+ if not os.path.exists(procfile):
+ raise HwsimSkip("kernel doesn't have capability")
+
+ ap_params = { 'ssid': 'open', 'channel': '5' }
+ hapd = hostapd.add_ap(apdevs[0]['ifname'], ap_params)
+ dev.connect('open', key_mgmt="NONE", scan_freq="2432")
+
+ with IPAssign(dev.ifname, 'fdaa::1/48', ipv6=True):
+ s = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
+ s.bind(("fdaa::1", 12345))
+ s.settimeout(0.1)
+
+ pkt = dst
+ pkt += hapd.own_addr().replace(':', '')
+ pkt += '86dd'
+ pkt += '60000000000c1140fdaa0000000000000000000000000002fdaa0000000000000000000000000001'
+ pkt += '30393039000cde31'
+ pkt += '61736466' # "asdf"
+ if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
+ raise Exception("DATA_TEST_FRAME failed")
+
+ data, addr = s.recvfrom(1024)
+ if data != 'asdf':
+ raise Exception("invalid data received")
+
+ open(procfile, 'w').write('1')
+ try:
+ if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
+ raise Exception("DATA_TEST_FRAME failed")
+
+ try:
+ print s.recvfrom(1024)
+ raise Exception("erroneously received frame!")
+ except socket.timeout:
+ # this is the expected behaviour
+ pass
+ finally:
+ open(procfile, 'w').write('0')
+
+def test_ip6_gtk_drop_bcast(devs, apdevs, params):
+ _test_ip6_gtk_drop(devs, apdevs, params, dst='ffffffffffff')
+
+def test_ip6_gtk_drop_mcast(devs, apdevs, params):
+ _test_ip6_gtk_drop(devs, apdevs, params, dst='ff0000000000')
+
+def test_ip4_drop_gratuitous_arp(devs, apdevs, params):
+ require_under_vm()
+ dev = devs[0]
+ procfile = '/proc/sys/net/ipv4/conf/%s/drop_gratuitous_arp' % dev.ifname
+ if not os.path.exists(procfile):
+ raise HwsimSkip("kernel doesn't have capability")
+
+ ap_params = { 'ssid': 'open', 'channel': '5' }
+ hapd = hostapd.add_ap(apdevs[0]['ifname'], ap_params)
+ dev.connect('open', key_mgmt="NONE", scan_freq="2432")
+
+ with IPAssign(dev.ifname, '10.0.0.2/24'):
+ # add an entry that can be updated by gratuitous ARP
+ subprocess.call(['ip', 'neigh', 'add', '10.0.0.1', 'lladdr', '02:00:00:00:00:ff', 'nud', 'reachable', 'dev', dev.ifname])
+ # wait for lock-time
+ time.sleep(1)
+ try:
+ ap_addr = hapd.own_addr()
+ cl_addr = dev.own_addr()
+ pkt = build_arp(cl_addr, ap_addr, 2, ap_addr, '10.0.0.1', ap_addr, '10.0.0.1')
+ pkt = binascii.hexlify(pkt)
+
+ if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
+ raise Exception("DATA_TEST_FRAME failed")
+
+ if not hapd.own_addr() in subprocess.check_output(['ip', 'neigh', 'show']):
+ raise Exception("gratuitous ARP frame failed to update")
+
+ subprocess.call(['ip', 'neigh', 'replace', '10.0.0.1', 'lladdr', '02:00:00:00:00:ff', 'nud', 'reachable', 'dev', dev.ifname])
+ # wait for lock-time
+ time.sleep(1)
+
+ open(procfile, 'w').write('1')
+
+ if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
+ raise Exception("DATA_TEST_FRAME failed")
+
+ if hapd.own_addr() in subprocess.check_output(['ip', 'neigh', 'show']):
+ raise Exception("gratuitous ARP frame updated erroneously")
+ finally:
+ subprocess.call(['ip', 'neigh', 'del', '10.0.0.1', 'dev', dev.ifname])
+ open(procfile, 'w').write('0')
+
+def test_ip6_drop_unsolicited_na(devs, apdevs, params):
+ require_under_vm()
+ dev = devs[0]
+ procfile = '/proc/sys/net/ipv6/conf/%s/drop_unsolicited_na' % dev.ifname
+ if not os.path.exists(procfile):
+ raise HwsimSkip("kernel doesn't have capability")
+
+ ap_params = { 'ssid': 'open', 'channel': '5' }
+ hapd = hostapd.add_ap(apdevs[0]['ifname'], ap_params)
+ dev.connect('open', key_mgmt="NONE", scan_freq="2432")
+
+ with IPAssign(dev.ifname, 'fdaa::1/48', ipv6=True):
+ # add an entry that can be updated by unsolicited NA
+ subprocess.call(['ip', '-6', 'neigh', 'add', 'fdaa::2', 'lladdr', '02:00:00:00:00:ff', 'nud', 'reachable', 'dev', dev.ifname])
+ try:
+ ap_addr = hapd.own_addr()
+ cl_addr = dev.own_addr()
+ pkt = build_na(ap_addr, 'fdaa::2', 'ff02::1', 'fdaa::2', flags=0x20,
+ opt=binascii.unhexlify('0201' + ap_addr.replace(':', '')))
+ pkt = binascii.hexlify(pkt)
+
+ if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
+ raise Exception("DATA_TEST_FRAME failed")
+
+ if not hapd.own_addr() in subprocess.check_output(['ip', 'neigh', 'show']):
+ raise Exception("unsolicited NA frame failed to update")
+
+ subprocess.call(['ip', '-6', 'neigh', 'replace', 'fdaa::2', 'lladdr', '02:00:00:00:00:ff', 'nud', 'reachable', 'dev', dev.ifname])
+
+ open(procfile, 'w').write('1')
+
+ if "OK" not in hapd.request('DATA_TEST_FRAME ' + pkt):
+ raise Exception("DATA_TEST_FRAME failed")
+
+ if hapd.own_addr() in subprocess.check_output(['ip', 'neigh', 'show']):
+ raise Exception("unsolicited NA frame updated erroneously")
+ finally:
+ subprocess.call(['ip', '-6', 'neigh', 'del', 'fdaa::2', 'dev', dev.ifname])
+ open(procfile, 'w').write('0')
--
2.6.2
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