tests/hwsim/test_ibss.py

   1 # IBSS test cases
   2 # Copyright (c) 2013, 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 logging
   8 logger = logging.getLogger()
   9 import time
  10 import re
  11
  12 import hwsim_utils
  13
  14 def connect_ibss_cmd(dev, id):
  15     dev.dump_monitor()
  16     dev.select_network(id, freq="2412")
  17
  18 def wait_ibss_connection(dev):
  19     logger.info(dev.ifname + " waiting for IBSS start/join to complete")
  20     ev = dev.wait_event(["CTRL-EVENT-CONNECTED"], timeout=20)
  21     if ev is None:
  22         raise Exception("Connection to the IBSS timed out")
  23     exp = r'<.>(CTRL-EVENT-CONNECTED) - Connection to ([0-9a-f:]*) completed.*'
  24     s = re.split(exp, ev)
  25     if len(s) < 3:
  26         return None
  27     return s[2]
  28
  29 def wait_4way_handshake(dev1, dev2):
  30     logger.info(dev1.ifname + " waiting for 4-way handshake completion with " + dev2.ifname + " " + dev2.p2p_interface_addr())
  31     ev = dev1.wait_event(["IBSS-RSN-COMPLETED " + dev2.p2p_interface_addr()],
  32                          timeout=20)
  33     if ev is None:
  34         raise Exception("4-way handshake in IBSS timed out")
  35
  36 def wait_4way_handshake2(dev1, dev2, dev3):
  37     logger.info(dev1.ifname + " waiting for 4-way handshake completion with " + dev2.ifname + " " + dev2.p2p_interface_addr() + " and " + dev3.p2p_interface_addr())
  38     ev = dev1.wait_event(["IBSS-RSN-COMPLETED " + dev2.p2p_interface_addr(),
  39                           "IBSS-RSN-COMPLETED " + dev3.p2p_interface_addr()],
  40                          timeout=20)
  41     if ev is None:
  42         raise Exception("4-way handshake in IBSS timed out")
  43     ev = dev1.wait_event(["IBSS-RSN-COMPLETED " + dev2.p2p_interface_addr(),
  44                           "IBSS-RSN-COMPLETED " + dev3.p2p_interface_addr()],
  45                          timeout=20)
  46     if ev is None:
  47         raise Exception("4-way handshake in IBSS timed out")
  48
  49 def add_ibss(dev, ssid, psk=None, proto=None, key_mgmt=None, pairwise=None, group=None, beacon_int=None, bssid=None):
  50     id = dev.add_network()
  51     dev.set_network(id, "mode", "1")
  52     dev.set_network(id, "frequency", "2412")
  53     dev.set_network_quoted(id, "ssid", ssid)
  54     if psk:
  55         dev.set_network_quoted(id, "psk", psk)
  56     if proto:
  57         dev.set_network(id, "proto", proto)
  58     if key_mgmt:
  59         dev.set_network(id, "key_mgmt", key_mgmt)
  60     if pairwise:
  61         dev.set_network(id, "pairwise", pairwise)
  62     if group:
  63         dev.set_network(id, "group", group)
  64     if beacon_int:
  65         dev.set_network(id, "beacon_int", beacon_int)
  66     if bssid:
  67         dev.set_network(id, "bssid", bssid)
  68     dev.request("ENABLE_NETWORK " + str(id) + " no-connect")
  69     return id
  70
  71 def add_ibss_rsn(dev, ssid):
  72     return add_ibss(dev, ssid, "12345678", "RSN", "WPA-PSK", "CCMP", "CCMP")
  73
  74 def add_ibss_wpa_none(dev, ssid):
  75     return add_ibss(dev, ssid, "12345678", "WPA", "WPA-NONE", "TKIP", "TKIP")
  76
  77 def add_ibss_wpa_none_ccmp(dev, ssid):
  78     return add_ibss(dev, ssid, "12345678", "WPA", "WPA-NONE", "CCMP", "CCMP")
  79
  80 def test_ibss_rsn(dev):
  81     """IBSS RSN"""
  82     ssid="ibss-rsn"
  83
  84     logger.info("Start IBSS on the first STA")
  85     id = add_ibss_rsn(dev[0], ssid)
  86     connect_ibss_cmd(dev[0], id)
  87     bssid0 = wait_ibss_connection(dev[0])
  88
  89     logger.info("Join two STAs to the IBSS")
  90
  91     id = add_ibss_rsn(dev[1], ssid)
  92     connect_ibss_cmd(dev[1], id)
  93     bssid1 = wait_ibss_connection(dev[1])
  94     if bssid0 != bssid1:
  95         logger.info("STA0 BSSID " + bssid0 + " differs from STA1 BSSID " + bssid1)
  96         # try to merge with a scan
  97         dev[1].scan()
  98     wait_4way_handshake(dev[0], dev[1])
  99     wait_4way_handshake(dev[1], dev[0])
 100
 101     id = add_ibss_rsn(dev[2], ssid)
 102     connect_ibss_cmd(dev[2], id)
 103     bssid2 = wait_ibss_connection(dev[2])
 104     if bssid0 != bssid2:
 105         logger.info("STA0 BSSID " + bssid0 + " differs from STA2 BSSID " + bssid2)
 106         # try to merge with a scan
 107         dev[2].scan()
 108     wait_4way_handshake(dev[0], dev[2])
 109     wait_4way_handshake2(dev[2], dev[0], dev[1])
 110
 111     # Allow some time for all peers to complete key setup
 112     time.sleep(3)
 113     hwsim_utils.test_connectivity(dev[0], dev[1])
 114     hwsim_utils.test_connectivity(dev[0], dev[2])
 115     hwsim_utils.test_connectivity(dev[1], dev[2])
 116
 117     dev[1].request("REMOVE_NETWORK all")
 118     time.sleep(1)
 119     id = add_ibss_rsn(dev[1], ssid)
 120     connect_ibss_cmd(dev[1], id)
 121     bssid1 = wait_ibss_connection(dev[1])
 122     if bssid0 != bssid1:
 123         logger.info("STA0 BSSID " + bssid0 + " differs from STA1 BSSID " + bssid1)
 124         # try to merge with a scan
 125         dev[1].scan()
 126     wait_4way_handshake(dev[0], dev[1])
 127     wait_4way_handshake(dev[1], dev[0])
 128     time.sleep(3)
 129     hwsim_utils.test_connectivity(dev[0], dev[1])
 130
 131     if "OK" not in dev[0].request("IBSS_RSN " + dev[1].p2p_interface_addr()):
 132         raise Exception("IBSS_RSN command failed")
 133
 134 def test_ibss_wpa_none(dev):
 135     """IBSS WPA-None"""
 136     ssid="ibss-wpa-none"
 137
 138     logger.info("Start IBSS on the first STA")
 139     id = add_ibss_wpa_none(dev[0], ssid)
 140     connect_ibss_cmd(dev[0], id)
 141     bssid0 = wait_ibss_connection(dev[0])
 142
 143     # This is a bit ugly, but no one really cares about WPA-None, so there may
 144     # not be enough justification to clean this up.. For now, wpa_supplicant
 145     # will show two connection events with mac80211_hwsim where the first one
 146     # comes with all zeros address.
 147     if bssid0 == "00:00:00:00:00:00":
 148         logger.info("Waiting for real BSSID on the first STA")
 149         bssid0 = wait_ibss_connection(dev[0])
 150
 151     logger.info("Join two STAs to the IBSS")
 152
 153     id = add_ibss_wpa_none(dev[1], ssid)
 154     connect_ibss_cmd(dev[1], id)
 155     id = add_ibss_wpa_none(dev[2], ssid)
 156     connect_ibss_cmd(dev[2], id)
 157
 158     bssid1 = wait_ibss_connection(dev[1])
 159     if bssid0 != bssid1:
 160         logger.info("STA0 BSSID " + bssid0 + " differs from STA1 BSSID " + bssid1)
 161         bssid1 = wait_ibss_connection(dev[1])
 162
 163     bssid2 = wait_ibss_connection(dev[2])
 164     if bssid0 != bssid2:
 165         logger.info("STA0 BSSID " + bssid0 + " differs from STA2 BSSID " + bssid2)
 166         bssid2 = wait_ibss_connection(dev[2])
 167
 168     print bssid0
 169     print bssid1
 170     print bssid2
 171
 172     bss = dev[0].get_bss(bssid0)
 173     if not bss:
 174         bss = dev[1].get_bss(bssid1)
 175         if not bss:
 176             raise Exception("Could not find BSS entry for IBSS")
 177     if 'flags' not in bss:
 178         raise Exception("Could not get BSS flags from BSS table")
 179     if "[WPA-None-TKIP]" not in bss['flags']:
 180         raise Exception("Unexpected BSS flags: " + bss['flags'])
 181
 182     # Allow some time for all peers to complete key setup
 183     time.sleep(1)
 184
 185     # This is supposed to work, but looks like WPA-None does not work with
 186     # mac80211 currently..
 187     try:
 188         hwsim_utils.test_connectivity(dev[0], dev[1])
 189     except Exception, e:
 190         logger.info("Ignoring known connectivity failure: " + str(e))
 191     try:
 192         hwsim_utils.test_connectivity(dev[0], dev[2])
 193     except Exception, e:
 194         logger.info("Ignoring known connectivity failure: " + str(e))
 195     try:
 196         hwsim_utils.test_connectivity(dev[1], dev[2])
 197     except Exception, e:
 198         logger.info("Ignoring known connectivity failure: " + str(e))
 199
 200 def test_ibss_wpa_none_ccmp(dev):
 201     """IBSS WPA-None/CCMP"""
 202     ssid="ibss-wpa-none"
 203
 204     logger.info("Start IBSS on the first STA")
 205     id = add_ibss_wpa_none(dev[0], ssid)
 206     connect_ibss_cmd(dev[0], id)
 207     bssid0 = wait_ibss_connection(dev[0])
 208
 209     # This is a bit ugly, but no one really cares about WPA-None, so there may
 210     # not be enough justification to clean this up.. For now, wpa_supplicant
 211     # will show two connection events with mac80211_hwsim where the first one
 212     # comes with all zeros address.
 213     if bssid0 == "00:00:00:00:00:00":
 214         logger.info("Waiting for real BSSID on the first STA")
 215         bssid0 = wait_ibss_connection(dev[0])
 216
 217
 218     logger.info("Join a STA to the IBSS")
 219     id = add_ibss_wpa_none(dev[1], ssid)
 220     connect_ibss_cmd(dev[1], id)
 221
 222     bssid1 = wait_ibss_connection(dev[1])
 223     if bssid0 != bssid1:
 224         logger.info("STA0 BSSID " + bssid0 + " differs from STA1 BSSID " + bssid1)
 225         bssid1 = wait_ibss_connection(dev[1])
 226
 227     print bssid0
 228     print bssid1
 229
 230     # Allow some time for all peers to complete key setup
 231     time.sleep(1)
 232
 233     # This is supposed to work, but looks like WPA-None does not work with
 234     # mac80211 currently..
 235     try:
 236         hwsim_utils.test_connectivity(dev[0], dev[1])
 237     except Exception, e:
 238         logger.info("Ignoring known connectivity failure: " + str(e))
 239
 240 def test_ibss_open(dev):
 241     """IBSS open (no security)"""
 242     ssid="ibss"
 243     id = add_ibss(dev[0], ssid, key_mgmt="NONE", beacon_int="150")
 244     connect_ibss_cmd(dev[0], id)
 245     bssid0 = wait_ibss_connection(dev[0])
 246
 247     id = add_ibss(dev[1], ssid, key_mgmt="NONE", beacon_int="200")
 248     connect_ibss_cmd(dev[1], id)
 249     bssid1 = wait_ibss_connection(dev[1])
 250     if bssid0 != bssid1:
 251         logger.info("STA0 BSSID " + bssid0 + " differs from STA1 BSSID " + bssid1)
 252
 253     res = dev[0].request("SCAN_RESULTS")
 254     if "[IBSS]" not in res:
 255         res = dev[1].request("SCAN_RESULTS")
 256         if "[IBSS]" not in res:
 257             raise Exception("IBSS flag missing from scan results: " + res)
 258     bss = dev[0].get_bss(bssid0)
 259     if not bss:
 260         bss = dev[1].get_bss(bssid1)
 261         if not bss:
 262             raise Exception("Could not find BSS entry for IBSS")
 263     if 'flags' not in bss:
 264         raise Exception("Could not get BSS flags from BSS table")
 265     if "[IBSS]" not in bss['flags']:
 266         raise Exception("Unexpected BSS flags: " + bss['flags'])
 267
 268 def test_ibss_open_fixed_bssid(dev):
 269     """IBSS open (no security) and fixed BSSID"""
 270     ssid="ibss"
 271     bssid="02:11:22:33:44:55"
 272     try:
 273         dev[0].request("AP_SCAN 2")
 274         add_ibss(dev[0], ssid, key_mgmt="NONE", bssid=bssid, beacon_int="150")
 275         dev[0].request("REASSOCIATE")
 276
 277         dev[1].request("AP_SCAN 2")
 278         add_ibss(dev[1], ssid, key_mgmt="NONE", bssid=bssid, beacon_int="200")
 279         dev[1].request("REASSOCIATE")
 280
 281         bssid0 = wait_ibss_connection(dev[0])
 282         bssid1 = wait_ibss_connection(dev[1])
 283         if bssid0 != bssid:
 284             raise Exception("STA0 BSSID " + bssid0 + " differs from fixed BSSID " + bssid)
 285         if bssid1 != bssid:
 286             raise Exception("STA0 BSSID " + bssid0 + " differs from fixed BSSID " + bssid)
 287     finally:
 288         dev[0].request("AP_SCAN 1")
 289         dev[1].request("AP_SCAN 1")