mirror of
https://github.com/vanhoefm/fragattacks.git
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119 lines
3.4 KiB
Python
119 lines
3.4 KiB
Python
# Testing utilities
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# Copyright (c) 2013-2015, Jouni Malinen <j@w1.fi>
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#
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# This software may be distributed under the terms of the BSD license.
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# See README for more details.
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import binascii
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import os
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import struct
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import time
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import remotehost
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def get_ifnames():
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ifnames = []
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with open("/proc/net/dev", "r") as f:
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lines = f.readlines()
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for l in lines:
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val = l.split(':', 1)
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if len(val) == 2:
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ifnames.append(val[0].strip(' '))
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return ifnames
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class HwsimSkip(Exception):
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def __init__(self, reason):
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self.reason = reason
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def __str__(self):
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return self.reason
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class alloc_fail(object):
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def __init__(self, dev, count, funcs):
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self._dev = dev
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self._count = count
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self._funcs = funcs
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def __enter__(self):
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cmd = "TEST_ALLOC_FAIL %d:%s" % (self._count, self._funcs)
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if "OK" not in self._dev.request(cmd):
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raise HwsimSkip("TEST_ALLOC_FAIL not supported")
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def __exit__(self, type, value, traceback):
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if type is None:
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if self._dev.request("GET_ALLOC_FAIL") != "0:%s" % self._funcs:
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raise Exception("Allocation failure did not trigger")
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class fail_test(object):
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def __init__(self, dev, count, funcs):
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self._dev = dev
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self._count = count
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self._funcs = funcs
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def __enter__(self):
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cmd = "TEST_FAIL %d:%s" % (self._count, self._funcs)
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if "OK" not in self._dev.request(cmd):
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raise HwsimSkip("TEST_FAIL not supported")
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def __exit__(self, type, value, traceback):
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if type is None:
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if self._dev.request("GET_FAIL") != "0:%s" % self._funcs:
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raise Exception("Test failure did not trigger")
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def wait_fail_trigger(dev, cmd, note="Failure not triggered", max_iter=40):
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for i in range(0, max_iter):
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if dev.request(cmd).startswith("0:"):
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break
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if i == max_iter - 1:
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raise Exception(note)
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time.sleep(0.05)
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def require_under_vm():
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with open('/proc/1/cmdline', 'r') as f:
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cmd = f.read()
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if "inside.sh" not in cmd:
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raise HwsimSkip("Not running under VM")
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def iface_is_in_bridge(bridge, ifname):
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fname = "/sys/class/net/"+ifname+"/brport/bridge"
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if not os.path.exists(fname):
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return False
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if not os.path.islink(fname):
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return False
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truebridge = os.path.basename(os.readlink(fname))
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if bridge == truebridge:
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return True
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return False
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def skip_with_fips(dev, reason="Not supported in FIPS mode"):
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res = dev.get_capability("fips")
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if res and 'FIPS' in res:
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raise HwsimSkip(reason)
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def get_phy(ap, ifname=None):
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phy = "phy3"
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try:
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hostname = ap['hostname']
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except:
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hostname = None
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host = remotehost.Host(hostname)
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if ifname == None:
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ifname = ap['ifname']
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status, buf = host.execute(["iw", "dev", ifname, "info"])
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if status != 0:
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raise Exception("iw " + ifname + " info failed")
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lines = buf.split("\n")
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for line in lines:
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if "wiphy" in line:
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words = line.split()
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phy = "phy" + words[1]
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break
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return phy
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def parse_ie(buf):
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ret = {}
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data = binascii.unhexlify(buf)
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while len(data) >= 2:
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ie,elen = struct.unpack('BB', data[0:2])
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data = data[2:]
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if elen > len(data):
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break
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ret[ie] = data[0:elen]
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data = data[elen:]
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return ret
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