hostap/tests/hwsim/fst_test_common.py
Jouni Malinen 003716ec7b tests: Clear regdom changes more robustly in FST test cases
Signed-off-by: Jouni Malinen <j@w1.fi>
2019-01-01 11:35:43 +02:00

97 lines
2.8 KiB
Python

# FST tests related definitions
# Copyright (c) 2015, Qualcomm Atheros, Inc.
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import subprocess
import time
import logging
import hostapd
logger = logging.getLogger()
fst_test_def_group='fstg0'
fst_test_def_freq_g='2412' # Channel 1
fst_test_def_freq_a='5180' # Channel 36
fst_test_def_chan_g='1'
fst_test_def_chan_a='36'
fst_test_def_prio_low='100'
fst_test_def_prio_high='110'
fst_test_def_llt='100'
fst_test_def_reg_domain='00'
class HapdRegCtrl:
def __init__(self):
self.refcnt = 0
self.ifname = None
self.changed = False
def __del__(self):
if self.refcnt != 0 and self.changed == True:
self.restore_reg_domain()
def start(self):
if self.ifname != None:
hapd = hostapd.Hostapd(self.ifname)
self.changed = self.wait_hapd_reg_change(hapd)
def stop(self):
if self.changed == True:
self.restore_reg_domain()
self.changed = False
def add_ap(self, ifname, chan):
if self.changed == False and self.channel_may_require_reg_change(chan):
self.ifname = ifname
@staticmethod
def channel_may_require_reg_change(chan):
if int(chan) > 14:
return True
return False
@staticmethod
def wait_hapd_reg_change(hapd):
state = hapd.get_status_field("state")
if state != "COUNTRY_UPDATE":
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state - expected COUNTRY_UPDATE")
else:
logger.debug("fst hostapd: regulatory domain already set")
return True
logger.debug("fst hostapd: waiting for regulatory domain to be set...")
ev = hapd.wait_event(["AP-ENABLED"], timeout=10)
if not ev:
raise Exception("AP setup timed out")
logger.debug("fst hostapd: regulatory domain set")
state = hapd.get_status_field("state")
if state != "ENABLED":
raise Exception("Unexpected interface state - expected ENABLED")
logger.debug("fst hostapd: regulatory domain ready")
return True
@staticmethod
def restore_reg_domain():
logger.debug("fst hostapd: waiting for regulatory domain to be restored...")
res = subprocess.call(['iw', 'reg', 'set', fst_test_def_reg_domain])
if res != 0:
raise Exception("Cannot restore regulatory domain")
logger.debug("fst hostapd: regulatory domain ready")
def fst_clear_regdom():
cmd = subprocess.Popen([ "iw", "reg", "get" ], stdout=subprocess.PIPE)
res = cmd.stdout.read()
cmd.stdout.close()
if "country 00:" not in res:
subprocess.call(['iw', 'reg', 'set', '00'])
time.sleep(0.1)