hostap/tests/hwsim/utils.py

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# Testing utilities
# Copyright (c) 2013-2015, Jouni Malinen <j@w1.fi>
#
# This software may be distributed under the terms of the BSD license.
# See README for more details.
import os
def get_ifnames():
ifnames = []
with open("/proc/net/dev", "r") as f:
lines = f.readlines()
for l in lines:
val = l.split(':', 1)
if len(val) == 2:
ifnames.append(val[0].strip(' '))
return ifnames
class HwsimSkip(Exception):
def __init__(self, reason):
self.reason = reason
def __str__(self):
return self.reason
class alloc_fail(object):
def __init__(self, dev, count, funcs):
self._dev = dev
self._count = count
self._funcs = funcs
def __enter__(self):
cmd = "TEST_ALLOC_FAIL %d:%s" % (self._count, self._funcs)
if "OK" not in self._dev.request(cmd):
raise HwsimSkip("TEST_ALLOC_FAIL not supported")
def __exit__(self, type, value, traceback):
if type is None:
if self._dev.request("GET_ALLOC_FAIL") != "0:%s" % self._funcs:
raise Exception("Allocation failure did not trigger")
def require_under_vm():
with open('/proc/1/cmdline', 'r') as f:
cmd = f.read()
if "inside.sh" not in cmd:
raise HwsimSkip("Not running under VM")
def iface_is_in_bridge(bridge, ifname):
fname = "/sys/class/net/"+ifname+"/brport/bridge"
if not os.path.exists(fname):
return False
if not os.path.islink(fname):
return False
truebridge = os.path.basename(os.readlink(fname))
if bridge == truebridge:
return True
return False