tests/hwsim/hwsim_utils.py

   1 # hwsim testing utilities
   2 # Copyright (c) 2013-2014, Jouni Malinen <j@w1.fi>
   3 #
   4 # This software may be distributed under the terms of the BSD license.
   5 # See README for more details.
   6
   7 import os
   8 import subprocess
   9 import time
  10 import logging
  11 logger = logging.getLogger()
  12
  13 from wpasupplicant import WpaSupplicant
  14
  15 def run_connectivity_test(dev1, dev2, tos, dev1group=False, dev2group=False,
  16                           ifname1=None, ifname2=None, config=True):
  17     addr1 = dev1.own_addr()
  18     if not dev1group and isinstance(dev1, WpaSupplicant):
  19         addr1 = dev1.get_driver_status_field('addr')
  20
  21     addr2 = dev2.own_addr()
  22     if not dev2group and isinstance(dev2, WpaSupplicant):
  23         addr2 = dev2.get_driver_status_field('addr')
  24
  25     dev1.dump_monitor()
  26     dev2.dump_monitor()
  27
  28     try:
  29         if config:
  30             cmd = "DATA_TEST_CONFIG 1"
  31             if ifname1:
  32                 cmd = cmd + " ifname=" + ifname1
  33             if dev1group:
  34                 res = dev1.group_request(cmd)
  35             else:
  36                 res = dev1.request(cmd)
  37             if "OK" not in res:
  38                 raise Exception("Failed to enable data test functionality")
  39
  40             cmd = "DATA_TEST_CONFIG 1"
  41             if ifname2:
  42                 cmd = cmd + " ifname=" + ifname2
  43             if dev2group:
  44                 res = dev2.group_request(cmd)
  45             else:
  46                 res = dev2.request(cmd)
  47             if "OK" not in res:
  48                 raise Exception("Failed to enable data test functionality")
  49
  50         cmd = "DATA_TEST_TX {} {} {}".format(addr2, addr1, tos)
  51         if dev1group:
  52             dev1.group_request(cmd)
  53         else:
  54             dev1.request(cmd)
  55         if dev2group:
  56             ev = dev2.wait_group_event(["DATA-TEST-RX"], timeout=5)
  57         else:
  58             ev = dev2.wait_event(["DATA-TEST-RX"], timeout=5)
  59         if ev is None:
  60             raise Exception("dev1->dev2 unicast data delivery failed")
  61         if "DATA-TEST-RX {} {}".format(addr2, addr1) not in ev:
  62             raise Exception("Unexpected dev1->dev2 unicast data result")
  63
  64         cmd = "DATA_TEST_TX ff:ff:ff:ff:ff:ff {} {}".format(addr1, tos)
  65         if dev1group:
  66             dev1.group_request(cmd)
  67         else:
  68             dev1.request(cmd)
  69         if dev2group:
  70             ev = dev2.wait_group_event(["DATA-TEST-RX"], timeout=5)
  71         else:
  72             ev = dev2.wait_event(["DATA-TEST-RX"], timeout=5)
  73         if ev is None:
  74             raise Exception("dev1->dev2 broadcast data delivery failed")
  75         if "DATA-TEST-RX ff:ff:ff:ff:ff:ff {}".format(addr1) not in ev:
  76             raise Exception("Unexpected dev1->dev2 broadcast data result")
  77
  78         cmd = "DATA_TEST_TX {} {} {}".format(addr1, addr2, tos)
  79         if dev2group:
  80             dev2.group_request(cmd)
  81         else:
  82             dev2.request(cmd)
  83         if dev1group:
  84             ev = dev1.wait_group_event(["DATA-TEST-RX"], timeout=5)
  85         else:
  86             ev = dev1.wait_event(["DATA-TEST-RX"], timeout=5)
  87         if ev is None:
  88             raise Exception("dev2->dev1 unicast data delivery failed")
  89         if "DATA-TEST-RX {} {}".format(addr1, addr2) not in ev:
  90             raise Exception("Unexpected dev2->dev1 unicast data result")
  91
  92         cmd = "DATA_TEST_TX ff:ff:ff:ff:ff:ff {} {}".format(addr2, tos)
  93         if dev2group:
  94             dev2.group_request(cmd)
  95         else:
  96             dev2.request(cmd)
  97         if dev1group:
  98             ev = dev1.wait_group_event(["DATA-TEST-RX"], timeout=5)
  99         else:
 100             ev = dev1.wait_event(["DATA-TEST-RX"], timeout=5)
 101         if ev is None:
 102             raise Exception("dev2->dev1 broadcast data delivery failed")
 103         if "DATA-TEST-RX ff:ff:ff:ff:ff:ff {}".format(addr2) not in ev:
 104             raise Exception("Unexpected dev2->dev1 broadcast data result")
 105     finally:
 106         if config:
 107             if dev1group:
 108                 dev1.group_request("DATA_TEST_CONFIG 0")
 109             else:
 110                 dev1.request("DATA_TEST_CONFIG 0")
 111             if dev2group:
 112                 dev2.group_request("DATA_TEST_CONFIG 0")
 113             else:
 114                 dev2.request("DATA_TEST_CONFIG 0")
 115
 116 def test_connectivity(dev1, dev2, dscp=None, tos=None, max_tries=1,
 117                       dev1group=False, dev2group=False,
 118                       ifname1=None, ifname2=None, config=True):
 119     if dscp:
 120         tos = dscp << 2
 121     if not tos:
 122         tos = 0
 123
 124     success = False
 125     last_err = None
 126     for i in range(0, max_tries):
 127         try:
 128             run_connectivity_test(dev1, dev2, tos, dev1group, dev2group,
 129                                   ifname1, ifname2, config=config)
 130             success = True
 131             break
 132         except Exception, e:
 133             last_err = e
 134             if i + 1 < max_tries:
 135                 time.sleep(1)
 136     if not success:
 137         raise Exception(last_err)
 138
 139 def test_connectivity_iface(dev1, dev2, ifname, dscp=None, tos=None,
 140                             max_tries=1):
 141     test_connectivity(dev1, dev2, dscp, tos, ifname2=ifname,
 142                       max_tries=max_tries)
 143
 144 def test_connectivity_p2p(dev1, dev2, dscp=None, tos=None):
 145     test_connectivity(dev1, dev2, dscp, tos, dev1group=True, dev2group=True)
 146
 147 def test_connectivity_p2p_sta(dev1, dev2, dscp=None, tos=None):
 148     test_connectivity(dev1, dev2, dscp, tos, dev1group=True, dev2group=False)
 149
 150 def test_connectivity_sta(dev1, dev2, dscp=None, tos=None):
 151     test_connectivity(dev1, dev2, dscp, tos)