hostapd/tests/hwsim/test_ap_open.py

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# Open mode AP tests
# Copyright (c) 2014, Qualcomm Atheros, Inc.
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import logging
logger = logging.getLogger()
import struct
import subprocess
import time
import os
import hostapd
import hwsim_utils
from tshark import run_tshark
from utils import alloc_fail
from wpasupplicant import WpaSupplicant
def test_ap_open(dev, apdev):
"""AP with open mode (no security) configuration"""
_test_ap_open(dev, apdev)
def _test_ap_open(dev, apdev):
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
bg_scan_period="0")
ev = hapd.wait_event([ "AP-STA-CONNECTED" ], timeout=5)
if ev is None:
raise Exception("No connection event received from hostapd")
hwsim_utils.test_connectivity(dev[0], hapd)
dev[0].request("DISCONNECT")
ev = hapd.wait_event([ "AP-STA-DISCONNECTED" ], timeout=5)
if ev is None:
raise Exception("No disconnection event received from hostapd")
def test_ap_open_packet_loss(dev, apdev):
"""AP with open mode configuration and large packet loss"""
params = { "ssid": "open",
"ignore_probe_probability": "0.5",
"ignore_auth_probability": "0.5",
"ignore_assoc_probability": "0.5",
"ignore_reassoc_probability": "0.5" }
hapd = hostapd.add_ap(apdev[0], params)
for i in range(0, 3):
dev[i].connect("open", key_mgmt="NONE", scan_freq="2412",
wait_connect=False)
for i in range(0, 3):
dev[i].wait_connected(timeout=20)
def test_ap_open_unknown_action(dev, apdev):
"""AP with open mode configuration and unknown Action frame"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412")
bssid = apdev[0]['bssid']
cmd = "MGMT_TX {} {} freq=2412 action=765432".format(bssid, bssid)
if "FAIL" in dev[0].request(cmd):
raise Exception("Could not send test Action frame")
ev = dev[0].wait_event(["MGMT-TX-STATUS"], timeout=10)
if ev is None:
raise Exception("Timeout on MGMT-TX-STATUS")
if "result=SUCCESS" not in ev:
raise Exception("AP did not ack Action frame")
def test_ap_open_invalid_wmm_action(dev, apdev):
"""AP with open mode configuration and invalid WMM Action frame"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412")
bssid = apdev[0]['bssid']
cmd = "MGMT_TX {} {} freq=2412 action=1100".format(bssid, bssid)
if "FAIL" in dev[0].request(cmd):
raise Exception("Could not send test Action frame")
ev = dev[0].wait_event(["MGMT-TX-STATUS"], timeout=10)
if ev is None or "result=SUCCESS" not in ev:
raise Exception("AP did not ack Action frame")
def test_ap_open_reconnect_on_inactivity_disconnect(dev, apdev):
"""Reconnect to open mode AP after inactivity related disconnection"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412")
hapd.request("DEAUTHENTICATE " + dev[0].p2p_interface_addr() + " reason=4")
dev[0].wait_disconnected(timeout=5)
dev[0].wait_connected(timeout=2, error="Timeout on reconnection")
def test_ap_open_assoc_timeout(dev, apdev):
"""AP timing out association"""
ssid = "test"
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
dev[0].scan(freq="2412")
hapd.set("ext_mgmt_frame_handling", "1")
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
wait_connect=False)
for i in range(0, 10):
req = hapd.mgmt_rx()
if req is None:
raise Exception("MGMT RX wait timed out")
if req['subtype'] == 11:
break
req = None
if not req:
raise Exception("Authentication frame not received")
resp = {}
resp['fc'] = req['fc']
resp['da'] = req['sa']
resp['sa'] = req['da']
resp['bssid'] = req['bssid']
resp['payload'] = struct.pack('<HHH', 0, 2, 0)
hapd.mgmt_tx(resp)
assoc = 0
for i in range(0, 10):
req = hapd.mgmt_rx()
if req is None:
raise Exception("MGMT RX wait timed out")
if req['subtype'] == 0:
assoc += 1
if assoc == 3:
break
if assoc != 3:
raise Exception("Association Request frames not received: assoc=%d" % assoc)
hapd.set("ext_mgmt_frame_handling", "0")
dev[0].wait_connected(timeout=15)
def test_ap_open_id_str(dev, apdev):
"""AP with open mode and id_str"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412", id_str="foo",
wait_connect=False)
ev = dev[0].wait_connected(timeout=10)
if "id_str=foo" not in ev:
raise Exception("CTRL-EVENT-CONNECT did not have matching id_str: " + ev)
if dev[0].get_status_field("id_str") != "foo":
raise Exception("id_str mismatch")
def test_ap_open_select_any(dev, apdev):
"""AP with open mode and select any network"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
id = dev[0].connect("unknown", key_mgmt="NONE", scan_freq="2412",
only_add_network=True)
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
only_add_network=True)
dev[0].select_network(id)
ev = dev[0].wait_event(["CTRL-EVENT-NETWORK-NOT-FOUND",
"CTRL-EVENT-CONNECTED"], timeout=10)
if ev is None:
raise Exception("No result reported")
if "CTRL-EVENT-CONNECTED" in ev:
raise Exception("Unexpected connection")
dev[0].select_network("any")
dev[0].wait_connected(timeout=10)
def test_ap_open_unexpected_assoc_event(dev, apdev):
"""AP with open mode and unexpected association event"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected(timeout=15)
dev[0].dump_monitor()
# This will be accepted due to matching network
subprocess.call(['iw', 'dev', dev[0].ifname, 'connect', 'open', "2412",
apdev[0]['bssid']])
dev[0].wait_connected(timeout=15)
dev[0].dump_monitor()
dev[0].request("REMOVE_NETWORK all")
dev[0].wait_disconnected(timeout=5)
dev[0].dump_monitor()
# This will result in disconnection due to no matching network
subprocess.call(['iw', 'dev', dev[0].ifname, 'connect', 'open', "2412",
apdev[0]['bssid']])
dev[0].wait_disconnected(timeout=15)
def test_ap_bss_load(dev, apdev):
"""AP with open mode (no security) configuration"""
hapd = hostapd.add_ap(apdev[0],
{ "ssid": "open",
"bss_load_update_period": "10" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412")
# this does not really get much useful output with mac80211_hwsim currently,
# but run through the channel survey update couple of times
for i in range(0, 10):
hwsim_utils.test_connectivity(dev[0], hapd)
hwsim_utils.test_connectivity(dev[0], hapd)
hwsim_utils.test_connectivity(dev[0], hapd)
time.sleep(0.15)
def hapd_out_of_mem(hapd, apdev, count, func):
with alloc_fail(hapd, count, func):
started = False
try:
hostapd.add_ap(apdev, { "ssid": "open" })
started = True
except:
pass
if started:
raise Exception("hostapd interface started even with memory allocation failure: %d:%s" % (count, func))
def test_ap_open_out_of_memory(dev, apdev):
"""hostapd failing to setup interface due to allocation failure"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
hapd_out_of_mem(hapd, apdev[1], 1, "hostapd_alloc_bss_data")
for i in range(1, 3):
hapd_out_of_mem(hapd, apdev[1], i, "hostapd_iface_alloc")
for i in range(1, 5):
hapd_out_of_mem(hapd, apdev[1], i, "hostapd_config_defaults;hostapd_config_alloc")
hapd_out_of_mem(hapd, apdev[1], 1, "hostapd_config_alloc")
hapd_out_of_mem(hapd, apdev[1], 1, "hostapd_driver_init")
for i in range(1, 3):
hapd_out_of_mem(hapd, apdev[1], i, "=wpa_driver_nl80211_drv_init")
# eloop_register_read_sock() call from i802_init()
hapd_out_of_mem(hapd, apdev[1], 1, "eloop_sock_table_add_sock;?eloop_register_sock;?eloop_register_read_sock;=i802_init")
# verify that a new interface can still be added when memory allocation does
# not fail
hostapd.add_ap(apdev[1], { "ssid": "open" })
def test_bssid_black_white_list(dev, apdev):
"""BSSID black/white list"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
hapd2 = hostapd.add_ap(apdev[1], { "ssid": "open" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
bssid_whitelist=apdev[1]['bssid'])
dev[1].connect("open", key_mgmt="NONE", scan_freq="2412",
bssid_blacklist=apdev[1]['bssid'])
dev[2].connect("open", key_mgmt="NONE", scan_freq="2412",
bssid_whitelist="00:00:00:00:00:00/00:00:00:00:00:00",
bssid_blacklist=apdev[1]['bssid'])
if dev[0].get_status_field('bssid') != apdev[1]['bssid']:
raise Exception("dev[0] connected to unexpected AP")
if dev[1].get_status_field('bssid') != apdev[0]['bssid']:
raise Exception("dev[1] connected to unexpected AP")
if dev[2].get_status_field('bssid') != apdev[0]['bssid']:
raise Exception("dev[2] connected to unexpected AP")
dev[0].request("REMOVE_NETWORK all")
dev[1].request("REMOVE_NETWORK all")
dev[2].request("REMOVE_NETWORK all")
dev[2].connect("open", key_mgmt="NONE", scan_freq="2412",
bssid_whitelist="00:00:00:00:00:00", wait_connect=False)
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
bssid_whitelist="11:22:33:44:55:66/ff:00:00:00:00:00 " + apdev[1]['bssid'] + " aa:bb:cc:dd:ee:ff")
dev[1].connect("open", key_mgmt="NONE", scan_freq="2412",
bssid_blacklist="11:22:33:44:55:66/ff:00:00:00:00:00 " + apdev[1]['bssid'] + " aa:bb:cc:dd:ee:ff")
if dev[0].get_status_field('bssid') != apdev[1]['bssid']:
raise Exception("dev[0] connected to unexpected AP")
if dev[1].get_status_field('bssid') != apdev[0]['bssid']:
raise Exception("dev[1] connected to unexpected AP")
dev[0].request("REMOVE_NETWORK all")
dev[1].request("REMOVE_NETWORK all")
ev = dev[2].wait_event(["CTRL-EVENT-CONNECTED"], timeout=0.1)
if ev is not None:
raise Exception("Unexpected dev[2] connectin")
dev[2].request("REMOVE_NETWORK all")
def test_ap_open_wpas_in_bridge(dev, apdev):
"""Open mode AP and wpas interface in a bridge"""
br_ifname='sta-br0'
ifname='wlan5'
try:
_test_ap_open_wpas_in_bridge(dev, apdev)
finally:
subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'down'])
subprocess.call(['brctl', 'delif', br_ifname, ifname])
subprocess.call(['brctl', 'delbr', br_ifname])
subprocess.call(['iw', ifname, 'set', '4addr', 'off'])
def _test_ap_open_wpas_in_bridge(dev, apdev):
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
br_ifname='sta-br0'
ifname='wlan5'
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
# First, try a failure case of adding an interface
try:
wpas.interface_add(ifname, br_ifname=br_ifname)
raise Exception("Interface addition succeeded unexpectedly")
except Exception, e:
if "Failed to add" in str(e):
logger.info("Ignore expected interface_add failure due to missing bridge interface: " + str(e))
else:
raise
# Next, add the bridge interface and add the interface again
subprocess.call(['brctl', 'addbr', br_ifname])
subprocess.call(['brctl', 'setfd', br_ifname, '0'])
subprocess.call(['ip', 'link', 'set', 'dev', br_ifname, 'up'])
subprocess.call(['iw', ifname, 'set', '4addr', 'on'])
subprocess.check_call(['brctl', 'addif', br_ifname, ifname])
wpas.interface_add(ifname, br_ifname=br_ifname)
wpas.connect("open", key_mgmt="NONE", scan_freq="2412")
def test_ap_open_start_disabled(dev, apdev):
"""AP with open mode and beaconing disabled"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open",
"start_disabled": "1" })
bssid = apdev[0]['bssid']
dev[0].flush_scan_cache()
dev[0].scan(freq=2412, only_new=True)
if dev[0].get_bss(bssid) is not None:
raise Exception("AP was seen beaconing")
if "OK" not in hapd.request("RELOAD"):
raise Exception("RELOAD failed")
dev[0].scan_for_bss(bssid, freq=2412)
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412")
def test_ap_open_start_disabled2(dev, apdev):
"""AP with open mode and beaconing disabled (2)"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open",
"start_disabled": "1" })
bssid = apdev[0]['bssid']
dev[0].flush_scan_cache()
dev[0].scan(freq=2412, only_new=True)
if dev[0].get_bss(bssid) is not None:
raise Exception("AP was seen beaconing")
if "OK" not in hapd.request("UPDATE_BEACON"):
raise Exception("UPDATE_BEACON failed")
dev[0].scan_for_bss(bssid, freq=2412)
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412")
if "OK" not in hapd.request("UPDATE_BEACON"):
raise Exception("UPDATE_BEACON failed")
dev[0].request("DISCONNECT")
dev[0].wait_disconnected()
dev[0].request("RECONNECT")
dev[0].wait_connected()
def test_ap_open_ifdown(dev, apdev):
"""AP with open mode and external ifconfig down"""
params = { "ssid": "open",
"ap_max_inactivity": "1" }
hapd = hostapd.add_ap(apdev[0], params)
bssid = apdev[0]['bssid']
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412")
dev[1].connect("open", key_mgmt="NONE", scan_freq="2412")
subprocess.call(['ip', 'link', 'set', 'dev', apdev[0]['ifname'], 'down'])
ev = hapd.wait_event(["AP-STA-DISCONNECTED"], timeout=10)
if ev is None:
raise Exception("Timeout on AP-STA-DISCONNECTED (1)")
ev = hapd.wait_event(["AP-STA-DISCONNECTED"], timeout=5)
if ev is None:
raise Exception("Timeout on AP-STA-DISCONNECTED (2)")
ev = hapd.wait_event(["INTERFACE-DISABLED"], timeout=5)
if ev is None:
raise Exception("No INTERFACE-DISABLED event")
# The following wait tests beacon loss detection in mac80211 on dev0.
# dev1 is used to test stopping of AP side functionality on client polling.
dev[1].request("REMOVE_NETWORK all")
subprocess.call(['ip', 'link', 'set', 'dev', apdev[0]['ifname'], 'up'])
dev[0].wait_disconnected()
dev[1].wait_disconnected()
ev = hapd.wait_event(["INTERFACE-ENABLED"], timeout=10)
if ev is None:
raise Exception("No INTERFACE-ENABLED event")
dev[0].wait_connected()
hwsim_utils.test_connectivity(dev[0], hapd)
def test_ap_open_disconnect_in_ps(dev, apdev, params):
"""Disconnect with the client in PS to regression-test a kernel bug"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
bg_scan_period="0")
ev = hapd.wait_event([ "AP-STA-CONNECTED" ], timeout=5)
if ev is None:
raise Exception("No connection event received from hostapd")
time.sleep(0.2)
hwsim_utils.set_powersave(dev[0], hwsim_utils.PS_MANUAL_POLL)
try:
# inject some traffic
sa = hapd.own_addr()
da = dev[0].own_addr()
hapd.request('DATA_TEST_CONFIG 1')
hapd.request('DATA_TEST_TX {} {} 0'.format(da, sa))
hapd.request('DATA_TEST_CONFIG 0')
# let the AP send couple of Beacon frames
time.sleep(0.3)
# disconnect - with traffic pending - shouldn't cause kernel warnings
dev[0].request("DISCONNECT")
finally:
hwsim_utils.set_powersave(dev[0], hwsim_utils.PS_DISABLED)
time.sleep(0.2)
out = run_tshark(os.path.join(params['logdir'], "hwsim0.pcapng"),
"wlan_mgt.tim.partial_virtual_bitmap",
["wlan_mgt.tim.partial_virtual_bitmap"])
if out is not None:
state = 0
for l in out.splitlines():
pvb = int(l, 16)
if pvb > 0 and state == 0:
state = 1
elif pvb == 0 and state == 1:
state = 2
if state != 2:
raise Exception("Didn't observe TIM bit getting set and unset (state=%d)" % state)
def test_ap_open_select_network(dev, apdev):
"""Open mode connection and SELECT_NETWORK to change network"""
hapd1 = hostapd.add_ap(apdev[0], { "ssid": "open" })
bssid1 = apdev[0]['bssid']
hapd2 = hostapd.add_ap(apdev[1], { "ssid": "open2" })
bssid2 = apdev[1]['bssid']
id1 = dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
only_add_network=True)
id2 = dev[0].connect("open2", key_mgmt="NONE", scan_freq="2412")
hwsim_utils.test_connectivity(dev[0], hapd2)
dev[0].select_network(id1)
dev[0].wait_connected()
res = dev[0].request("BLACKLIST")
if bssid1 in res or bssid2 in res:
raise Exception("Unexpected blacklist entry")
hwsim_utils.test_connectivity(dev[0], hapd1)
dev[0].select_network(id2)
dev[0].wait_connected()
hwsim_utils.test_connectivity(dev[0], hapd2)
res = dev[0].request("BLACKLIST")
if bssid1 in res or bssid2 in res:
raise Exception("Unexpected blacklist entry(2)")
def test_ap_open_disable_enable(dev, apdev):
"""AP with open mode getting disabled and re-enabled"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
bg_scan_period="0")
for i in range(2):
hapd.request("DISABLE")
dev[0].wait_disconnected()
hapd.request("ENABLE")
dev[0].wait_connected()
hwsim_utils.test_connectivity(dev[0], hapd)
def sta_enable_disable(dev, bssid):
dev.scan_for_bss(bssid, freq=2412)
work_id = dev.request("RADIO_WORK add block-work")
ev = dev.wait_event(["EXT-RADIO-WORK-START"])
if ev is None:
raise Exception("Timeout while waiting radio work to start")
id = dev.connect("open", key_mgmt="NONE", scan_freq="2412",
only_add_network=True)
dev.request("ENABLE_NETWORK %d" % id)
if "connect@" not in dev.request("RADIO_WORK show"):
raise Exception("connect radio work missing")
dev.request("DISABLE_NETWORK %d" % id)
dev.request("RADIO_WORK done " + work_id)
ok = False
for i in range(30):
if "connect@" not in dev.request("RADIO_WORK show"):
ok = True
break
time.sleep(0.1)
if not ok:
raise Exception("connect radio work not completed")
ev = dev.wait_event(["CTRL-EVENT-CONNECTED"], timeout=0.1)
if ev is not None:
raise Exception("Unexpected connection")
dev.request("DISCONNECT")
def test_ap_open_sta_enable_disable(dev, apdev):
"""AP with open mode and wpa_supplicant ENABLE/DISABLE_NETWORK"""
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
bssid = apdev[0]['bssid']
sta_enable_disable(dev[0], bssid)
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add("wlan5", drv_params="force_connect_cmd=1")
sta_enable_disable(wpas, bssid)
def test_ap_open_select_twice(dev, apdev):
"""AP with open mode and select network twice"""
id = dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
only_add_network=True)
dev[0].select_network(id)
ev = dev[0].wait_event(["CTRL-EVENT-NETWORK-NOT-FOUND"], timeout=10)
if ev is None:
raise Exception("No result reported")
hapd = hostapd.add_ap(apdev[0], { "ssid": "open" })
# Verify that the second SELECT_NETWORK starts a new scan immediately by
# waiting less than the default scan period.
dev[0].select_network(id)
dev[0].wait_connected(timeout=3)
def test_ap_open_reassoc_not_found(dev, apdev):
"""AP with open mode and REASSOCIATE not finding a match"""
id = dev[0].connect("open", key_mgmt="NONE", scan_freq="2412",
only_add_network=True)
dev[0].select_network(id)
ev = dev[0].wait_event(["CTRL-EVENT-NETWORK-NOT-FOUND"], timeout=10)
if ev is None:
raise Exception("No result reported")
dev[0].request("DISCONNECT")
time.sleep(0.1)
dev[0].dump_monitor()
dev[0].request("REASSOCIATE")
ev = dev[0].wait_event(["CTRL-EVENT-NETWORK-NOT-FOUND"], timeout=10)
if ev is None:
raise Exception("No result reported")
dev[0].request("DISCONNECT")