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hostapd/tests/hwsim/test_ap_dynamic.py
Jouni Malinen ad36d27d6a tests: Remove ignore_old_scan_res workaround 
Now that wpa_supplicant requests the driver (cfg80211) to clear its scan
cache automatically after each BSS_FLUSH/FLUSH command, the previously
used ignore_old_scan_res workaround should not be needed for the hwsim
test cases anymore.

Signed-hostap: Jouni Malinen <j@w1.fi>
2014-01-03 08:59:59 +02:00

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Python
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#!/usr/bin/python
#
# Test cases for dynamic BSS changes with hostapd
# Copyright (c) 2013, Qualcomm Atheros, Inc.
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import time
import subprocess
import logging
logger = logging.getLogger()
import hwsim_utils
import hostapd
def test_ap_change_ssid(dev, apdev):
"""Dynamic SSID change with hostapd and WPA2-PSK"""
params = hostapd.wpa2_params(ssid="test-wpa2-psk-start",
passphrase="12345678")
hostapd.add_ap(apdev[0]['ifname'], params)
id = dev[0].connect("test-wpa2-psk-start", psk="12345678",
scan_freq="2412")
dev[0].request("DISCONNECT")
logger.info("Change SSID dynamically")
hapd = hostapd.Hostapd(apdev[0]['ifname'])
res = hapd.request("SET ssid test-wpa2-psk-new")
if "OK" not in res:
raise Exception("SET command failed")
res = hapd.request("RELOAD")
if "OK" not in res:
raise Exception("RELOAD command failed")
dev[0].set_network_quoted(id, "ssid", "test-wpa2-psk-new")
dev[0].connect_network(id)
def multi_check(dev, check):
id = []
num_bss = len(check)
for i in range(0, num_bss):
dev[i].request("BSS_FLUSH 0")
dev[i].dump_monitor()
id.append(dev[i].connect("bss-" + str(i + 1), key_mgmt="NONE",
scan_freq="2412", wait_connect=check[i]))
for i in range(0, num_bss):
if not check[i]:
ev = dev[i].wait_event(["CTRL-EVENT-CONNECTED"], timeout=0.2)
if ev:
raise Exception("Unexpected connection")
for i in range(0, num_bss):
dev[i].remove_network(id[i])
time.sleep(0.3)
res = ''
for i in range(0, num_bss):
res = res + dev[i].request("BSS RANGE=ALL MASK=0x2")
for i in range(0, num_bss):
if not check[i]:
bssid = '02:00:00:00:03:0' + str(i)
if bssid in res:
raise Exception("Unexpected BSS" + str(i) + " in scan results")
def test_ap_bss_add_remove(dev, apdev):
"""Dynamic BSS add/remove operations with hostapd"""
ifname1 = apdev[0]['ifname']
ifname2 = apdev[0]['ifname'] + '-2'
ifname3 = apdev[0]['ifname'] + '-3'
logger.info("Set up three BSSes one by one")
hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
multi_check(dev, [ True, False, False ])
hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
multi_check(dev, [ True, True, False ])
hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
multi_check(dev, [ True, True, True ])
logger.info("Remove the last BSS and re-add it")
hostapd.remove_bss(ifname3)
multi_check(dev, [ True, True, False ])
hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
multi_check(dev, [ True, True, True ])
logger.info("Remove the middle BSS and re-add it")
hostapd.remove_bss(ifname2)
multi_check(dev, [ True, False, True ])
hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
multi_check(dev, [ True, True, True ])
logger.info("Remove the first BSS and re-add it and other BSSs")
hostapd.remove_bss(ifname1)
multi_check(dev, [ False, False, False ])
hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
multi_check(dev, [ True, True, True ])
logger.info("Remove two BSSes and re-add them")
hostapd.remove_bss(ifname2)
multi_check(dev, [ True, False, True ])
hostapd.remove_bss(ifname3)
multi_check(dev, [ True, False, False ])
hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
multi_check(dev, [ True, True, False ])
hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
multi_check(dev, [ True, True, True ])
logger.info("Remove three BSSes in and re-add them")
hostapd.remove_bss(ifname3)
multi_check(dev, [ True, True, False ])
hostapd.remove_bss(ifname2)
multi_check(dev, [ True, False, False ])
hostapd.remove_bss(ifname1)
multi_check(dev, [ False, False, False ])
hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
multi_check(dev, [ True, False, False ])
hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
multi_check(dev, [ True, True, False ])
hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
multi_check(dev, [ True, True, True ])
logger.info("Test error handling if a duplicate ifname is tried")
hostapd.add_bss('phy3', ifname3, 'bss-3.conf', ignore_error=True)
multi_check(dev, [ True, True, True ])
def test_ap_bss_add_remove_during_ht_scan(dev, apdev):
"""Dynamic BSS add during HT40 co-ex scan"""
ifname1 = apdev[0]['ifname']
ifname2 = apdev[0]['ifname'] + '-2'
hostapd.add_bss('phy3', ifname1, 'bss-ht40-1.conf')
hostapd.add_bss('phy3', ifname2, 'bss-ht40-2.conf')
multi_check(dev, [ True, True ])
hostapd.remove_bss(ifname2)
hostapd.remove_bss(ifname1)
hostapd.add_bss('phy3', ifname1, 'bss-ht40-1.conf')
hostapd.add_bss('phy3', ifname2, 'bss-ht40-2.conf')
hostapd.remove_bss(ifname2)
multi_check(dev, [ True, False ])
hostapd.remove_bss(ifname1)
hostapd.add_bss('phy3', ifname1, 'bss-ht40-1.conf')
hostapd.add_bss('phy3', ifname2, 'bss-ht40-2.conf')
hostapd.remove_bss(ifname1)
multi_check(dev, [ False, False ])
def test_ap_multi_bss_config(dev, apdev):
"""hostapd start with a multi-BSS configuration file"""
ifname1 = apdev[0]['ifname']
ifname2 = apdev[0]['ifname'] + '-2'
ifname3 = apdev[0]['ifname'] + '-3'
logger.info("Set up three BSSes with one configuration file")
hostapd.add_iface(ifname1, 'multi-bss.conf')
hapd = hostapd.Hostapd(ifname1)
hapd.enable()
multi_check(dev, [ True, True, True ])
hostapd.remove_bss(ifname2)
multi_check(dev, [ True, False, True ])
hostapd.remove_bss(ifname3)
multi_check(dev, [ True, False, False ])
hostapd.remove_bss(ifname1)
multi_check(dev, [ False, False, False ])
hostapd.add_iface(ifname1, 'multi-bss.conf')
hapd = hostapd.Hostapd(ifname1)
hapd.enable()
hostapd.remove_bss(ifname1)
multi_check(dev, [ False, False, False ])
def invalid_ap(hapd_global, ifname):
logger.info("Trying to start AP " + ifname + " with invalid configuration")
hapd_global.remove(ifname)
hapd_global.add(ifname)
hapd = hostapd.Hostapd(ifname)
if not hapd.ping():
raise Exception("Could not ping hostapd")
hapd.set_defaults()
hapd.set("ssid", "invalid-config")
hapd.set("channel", "12345")
try:
hapd.enable()
started = True
except Exception, e:
started = False
if started:
raise Exception("ENABLE command succeeded unexpectedly")
return hapd
def test_ap_invalid_config(dev, apdev):
"""Try to start AP with invalid configuration and fix configuration"""
hapd_global = hostapd.HostapdGlobal()
ifname = apdev[0]['ifname']
hapd = invalid_ap(hapd_global, ifname)
logger.info("Fix configuration and start AP again")
hapd.set("channel", "1")
hapd.enable()
dev[0].connect("invalid-config", key_mgmt="NONE", scan_freq="2412")
def test_ap_invalid_config2(dev, apdev):
"""Try to start AP with invalid configuration and remove interface"""
hapd_global = hostapd.HostapdGlobal()
ifname = apdev[0]['ifname']
hapd = invalid_ap(hapd_global, ifname)
logger.info("Remove interface with failed configuration")
hapd_global.remove(ifname)
def test_ap_remove_during_acs(dev, apdev):
"""Remove interface during ACS"""
params = hostapd.wpa2_params(ssid="test-acs-remove", passphrase="12345678")
params['channel'] = '0'
ifname = apdev[0]['ifname']
hapd = hostapd.HostapdGlobal()
hostapd.add_ap(ifname, params)
hapd.remove(ifname)
def test_ap_remove_during_acs2(dev, apdev):
"""Remove BSS during ACS in multi-BSS configuration"""
ifname = apdev[0]['ifname']
ifname2 = ifname + "-2"
hapd_global = hostapd.HostapdGlobal()
hapd_global.add(ifname)
hapd = hostapd.Hostapd(ifname)
hapd.set_defaults()
hapd.set("ssid", "test-acs-remove")
hapd.set("channel", "0")
hapd.set("bss", ifname2)
hapd.set("ssid", "test-acs-remove2")
hapd.enable()
hapd_global.remove(ifname)
def test_ap_remove_during_acs3(dev, apdev):
"""Remove second BSS during ACS in multi-BSS configuration"""
ifname = apdev[0]['ifname']
ifname2 = ifname + "-2"
hapd_global = hostapd.HostapdGlobal()
hapd_global.add(ifname)
hapd = hostapd.Hostapd(ifname)
hapd.set_defaults()
hapd.set("ssid", "test-acs-remove")
hapd.set("channel", "0")
hapd.set("bss", ifname2)
hapd.set("ssid", "test-acs-remove2")
hapd.enable()
hapd_global.remove(ifname2)
def test_ap_remove_during_ht_coex_scan(dev, apdev):
"""Remove interface during HT co-ex scan"""
params = hostapd.wpa2_params(ssid="test-ht-remove", passphrase="12345678")
params['channel'] = '1'
params['ht_capab'] = "[HT40+]"
ifname = apdev[0]['ifname']
hapd = hostapd.HostapdGlobal()
hostapd.add_ap(ifname, params)
hapd.remove(ifname)
def test_ap_remove_during_ht_coex_scan2(dev, apdev):
"""Remove BSS during HT co-ex scan in multi-BSS configuration"""
ifname = apdev[0]['ifname']
ifname2 = ifname + "-2"
hapd_global = hostapd.HostapdGlobal()
hapd_global.add(ifname)
hapd = hostapd.Hostapd(ifname)
hapd.set_defaults()
hapd.set("ssid", "test-ht-remove")
hapd.set("channel", "1")
hapd.set("ht_capab", "[HT40+]")
hapd.set("bss", ifname2)
hapd.set("ssid", "test-ht-remove2")
hapd.enable()
hapd_global.remove(ifname)
def test_ap_remove_during_ht_coex_scan3(dev, apdev):
"""Remove second BSS during HT co-ex scan in multi-BSS configuration"""
ifname = apdev[0]['ifname']
ifname2 = ifname + "-2"
hapd_global = hostapd.HostapdGlobal()
hapd_global.add(ifname)
hapd = hostapd.Hostapd(ifname)
hapd.set_defaults()
hapd.set("ssid", "test-ht-remove")
hapd.set("channel", "1")
hapd.set("ht_capab", "[HT40+]")
hapd.set("bss", ifname2)
hapd.set("ssid", "test-ht-remove2")
hapd.enable()
hapd_global.remove(ifname2)
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