298 lines
9.4 KiB
Python
298 lines
9.4 KiB
Python
# Testing utilities
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# Copyright (c) 2013-2019, 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 socket
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import struct
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import subprocess
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import time
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import remotehost
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import logging
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logger = logging.getLogger()
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import hostapd
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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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def long_duration_test(func):
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func.long_duration_test = True
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return func
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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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timeout=0.05):
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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(timeout)
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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 check_ext_key_id_capa(dev):
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res = dev.get_driver_status_field('capa.flags')
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if (int(res, 0) & 0x8000000000000000) == 0:
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raise HwsimSkip("Extended Key ID not supported")
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def skip_without_tkip(dev):
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res = dev.get_capability("fips")
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if "TKIP" not in dev.get_capability("pairwise") or \
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"TKIP" not in dev.get_capability("group"):
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raise HwsimSkip("Cipher TKIP not supported")
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def check_wep_capa(dev):
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if "WEP40" not in dev.get_capability("group"):
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raise HwsimSkip("WEP not supported")
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def check_sae_capab(dev):
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if "SAE" not in dev.get_capability("auth_alg"):
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raise HwsimSkip("SAE not supported")
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def check_sae_pk_capab(dev):
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if "PK" not in dev.get_capability("sae"):
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raise HwsimSkip("SAE-PK not supported")
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def check_tls_tod(dev):
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tls = dev.request("GET tls_library")
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if not tls.startswith("OpenSSL") and not tls.startswith("internal"):
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raise HwsimSkip("TLS TOD-TOFU/STRICT not supported with this TLS library: " + tls)
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def vht_supported():
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cmd = subprocess.Popen(["iw", "reg", "get"], stdout=subprocess.PIPE)
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reg = cmd.stdout.read()
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if "@ 80)" in reg or "@ 160)" in reg:
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return True
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return False
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# This function checks whether the provided dev, which may be either
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# WpaSupplicant or Hostapd supports CSA.
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def csa_supported(dev):
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res = dev.get_driver_status()
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if (int(res['capa.flags'], 0) & 0x80000000) == 0:
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raise HwsimSkip("CSA not supported")
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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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def wait_regdom_changes(dev):
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for i in range(10):
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ev = dev.wait_event(["CTRL-EVENT-REGDOM-CHANGE"], timeout=0.1)
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if ev is None:
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break
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def clear_country(dev):
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logger.info("Try to clear country")
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id = dev[1].add_network()
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dev[1].set_network(id, "mode", "2")
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dev[1].set_network_quoted(id, "ssid", "country-clear")
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dev[1].set_network(id, "key_mgmt", "NONE")
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dev[1].set_network(id, "frequency", "2412")
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dev[1].set_network(id, "scan_freq", "2412")
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dev[1].select_network(id)
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ev = dev[1].wait_event(["CTRL-EVENT-CONNECTED"])
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if ev:
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dev[0].connect("country-clear", key_mgmt="NONE", scan_freq="2412")
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dev[1].request("DISCONNECT")
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dev[0].wait_disconnected()
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dev[0].request("DISCONNECT")
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dev[0].request("ABORT_SCAN")
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time.sleep(1)
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dev[0].dump_monitor()
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dev[1].dump_monitor()
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def clear_regdom(hapd, dev, count=1):
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disable_hapd(hapd)
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clear_regdom_dev(dev, count)
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def disable_hapd(hapd):
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if hapd:
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hapd.request("DISABLE")
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time.sleep(0.1)
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def clear_regdom_dev(dev, count=1):
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for i in range(count):
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dev[i].request("DISCONNECT")
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for i in range(count):
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dev[i].disconnect_and_stop_scan()
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dev[0].cmd_execute(['iw', 'reg', 'set', '00'])
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wait_regdom_changes(dev[0])
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country = dev[0].get_driver_status_field("country")
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logger.info("Country code at the end: " + country)
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if country != "00":
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clear_country(dev)
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for i in range(count):
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dev[i].flush_scan_cache()
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def radiotap_build():
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radiotap_payload = struct.pack('BB', 0x08, 0)
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radiotap_payload += struct.pack('BB', 0, 0)
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radiotap_payload += struct.pack('BB', 0, 0)
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radiotap_hdr = struct.pack('<BBHL', 0, 0, 8 + len(radiotap_payload),
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0xc002)
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return radiotap_hdr + radiotap_payload
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def start_monitor(ifname, freq=2412):
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subprocess.check_call(["iw", ifname, "set", "type", "monitor"])
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subprocess.call(["ip", "link", "set", "dev", ifname, "up"])
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subprocess.check_call(["iw", ifname, "set", "freq", str(freq)])
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ETH_P_ALL = 3
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sock = socket.socket(socket.AF_PACKET, socket.SOCK_RAW,
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socket.htons(ETH_P_ALL))
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sock.bind((ifname, 0))
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sock.settimeout(0.5)
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return sock
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def stop_monitor(ifname):
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subprocess.call(["ip", "link", "set", "dev", ifname, "down"])
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subprocess.call(["iw", ifname, "set", "type", "managed"])
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def clear_scan_cache(apdev):
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ifname = apdev['ifname']
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hostapd.cmd_execute(apdev, ['ifconfig', ifname, 'up'])
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hostapd.cmd_execute(apdev, ['iw', ifname, 'scan', 'trigger', 'freq', '2412',
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'flush'])
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time.sleep(0.1)
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hostapd.cmd_execute(apdev, ['ifconfig', ifname, 'down'])
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def set_world_reg(apdev0=None, apdev1=None, dev0=None):
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if apdev0:
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hostapd.cmd_execute(apdev0, ['iw', 'reg', 'set', '00'])
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if apdev1:
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hostapd.cmd_execute(apdev1, ['iw', 'reg', 'set', '00'])
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if dev0:
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dev0.cmd_execute(['iw', 'reg', 'set', '00'])
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time.sleep(0.1)
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def sysctl_write(val):
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subprocess.call(['sysctl', '-w', val], stdout=open('/dev/null', 'w'))
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def var_arg_call(fn, dev, apdev, params):
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if fn.__code__.co_argcount > 2:
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return fn(dev, apdev, params)
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elif fn.__code__.co_argcount > 1:
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return fn(dev, apdev)
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return fn(dev)
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def cloned_wrapper(wrapper, fn):
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# we need the name set right for selecting / printing etc.
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wrapper.__name__ = fn.__name__
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wrapper.__doc__ = fn.__doc__
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# reparent to the right module for module filtering
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wrapper.__module__ = fn.__module__
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return wrapper
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def disable_ipv6(fn):
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def wrapper(dev, apdev, params):
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require_under_vm()
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try:
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sysctl_write('net.ipv6.conf.all.disable_ipv6=1')
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sysctl_write('net.ipv6.conf.default.disable_ipv6=1')
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var_arg_call(fn, dev, apdev, params)
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finally:
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sysctl_write('net.ipv6.conf.all.disable_ipv6=0')
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sysctl_write('net.ipv6.conf.default.disable_ipv6=0')
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return cloned_wrapper(wrapper, fn)
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def reset_ignore_old_scan_res(fn):
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def wrapper(dev, apdev, params):
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try:
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var_arg_call(fn, dev, apdev, params)
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finally:
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dev[0].set("ignore_old_scan_res", "0")
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return cloned_wrapper(wrapper, fn)
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