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hostap/tests/hwsim/test_ap_dynamic.py
Jouni Malinen c65f23ab64 tests: Use single channel scans to speed up test cases 
A full scan in these specific test cases does not add anything to the
coverage, so use a single channel scan for the station connection to
remove undesired extra time needed for a full scan.

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-11-02 11:22:16 +02:00

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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, check0, check1, check2):
for d in dev:
d.request("BSS_FLUSH 0")
d.dump_monitor()
id0 = dev[0].connect("bss-1", key_mgmt="NONE", scan_freq="2412",
wait_connect=check0)
id1 = dev[1].connect("bss-2", key_mgmt="NONE", scan_freq="2412",
wait_connect=check1)
id2 = dev[2].connect("bss-3", key_mgmt="NONE", scan_freq="2412",
wait_connect=check2)
if not check0:
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=0.2)
if ev:
raise Exception("Unexpected connection")
if not check1:
ev = dev[1].wait_event(["CTRL-EVENT-CONNECTED"], timeout=0.2)
if ev:
raise Exception("Unexpected connection")
if not check2:
ev = dev[0].wait_event(["CTRL-EVENT-CONNECTED"], timeout=0.2)
if ev:
raise Exception("Unexpected connection")
dev[0].remove_network(id0)
dev[1].remove_network(id1)
dev[2].remove_network(id2)
time.sleep(0.3)
res0 = dev[0].request("BSS RANGE=ALL MASK=0x2")
res1 = dev[1].request("BSS RANGE=ALL MASK=0x2")
res2 = dev[2].request("BSS RANGE=ALL MASK=0x2")
if not check0:
if ('02:00:00:00:03:00' in res0 or
'02:00:00:00:03:00' in res1 or
'02:00:00:00:03:00' in res2):
raise Exception("Unexpected BSS0 in scan results")
if not check1:
if ('02:00:00:00:03:01' in res0 or
'02:00:00:00:03:01' in res1 or
'02:00:00:00:03:01' in res2):
raise Exception("Unexpected BSS1 in scan results")
if not check2:
if ('02:00:00:00:03:02' in res0 or
'02:00:00:00:03:02' in res1 or
'02:00:00:00:03:02' in res2):
raise Exception("Unexpected BSS2 in scan results")
def test_ap_bss_add_remove(dev, apdev):
"""Dynamic BSS add/remove operations with hostapd"""
for d in dev:
d.request("SET ignore_old_scan_res 1")
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")
hostapd.remove_bss(ifname1)
multi_check(dev, False, True, True)
hostapd.add_bss('phy3', ifname1, 'bss-1.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)
dev[0].request("NOTE failure-done")
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 and re-add them")
hostapd.remove_bss(ifname1)
multi_check(dev, False, True, True)
hostapd.remove_bss(ifname2)
multi_check(dev, False, False, True)
hostapd.remove_bss(ifname3)
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("Remove three BSSes in reverse order 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)
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)
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