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tests: WPS PBC session overlap detection with single BSSID selected
[thirdparty/hostap.git] / tests / hwsim / test_p2p_autogo.py
CommitLineData
4ea8d3b5 1# P2P autonomous GO test cases
eb9c1554 2# Copyright (c) 2013-2015, Jouni Malinen <j@w1.fi>
4ea8d3b5
JM		 3#
4# This software may be distributed under the terms of the BSD license.
5# See README for more details.
6
9fd6804d 7from remotehost import remote_compatible
7cb08cdb 8import time
07a2e61b 9import subprocess
4ea8d3b5 10import logging
c9aa4308 11logger = logging.getLogger()
4ea8d3b5 12
ae750570 13import hostapd
4ea8d3b5 14import hwsim_utils
19ae1d07 15import utils
81e787b7 16from utils import HwsimSkip
c7860beb 17from wlantest import Wlantest
0afb797e 18from wpasupplicant import WpaSupplicant
9cb34130
JM		 19from p2p_utils import *
20from test_p2p_messages import mgmt_tx, parse_p2p_public_action
4ea8d3b5
JM		 21
22def test_autogo(dev):
47c34473 23 """P2P autonomous GO and client joining group"""
ca9b78ad
JM		 24 addr0 = dev[0].p2p_dev_addr()
25 addr2 = dev[2].p2p_dev_addr()
19ae1d07
JM		 26 res = autogo(dev[0])
27 if "p2p-wlan" in res['ifname']:
28 raise Exception("Unexpected group interface name on GO")
29 res = connect_cli(dev[0], dev[1])
30 if "p2p-wlan" in res['ifname']:
31 raise Exception("Unexpected group interface name on client")
36f28187
IP		 32 bss = dev[1].get_bss("p2p_dev_addr=" + addr0, res['ifname'])
33 if not bss or bss['bssid'] != dev[0].p2p_interface_addr():
3a64d523
JM		 34 raise Exception("Unexpected BSSID in the BSS entry for the GO")
35 id = bss['id']
36f28187
IP		 36 bss = dev[1].get_bss("ID-" + id, res['ifname'])
37 if not bss or bss['id'] != id:
3a64d523 38 raise Exception("Could not find BSS entry based on id")
36f28187 39 res = dev[1].group_request("BSS RANGE=" + id + "- MASK=0x1")
3a64d523
JM		 40 if "id=" + id not in res:
41 raise Exception("Could not find BSS entry based on id range")
984c5b96 42
d463c556
JM		 43 res = dev[1].request("SCAN_RESULTS")
44 if "[P2P]" not in res:
45 raise Exception("P2P flag missing from scan results: " + res)
46
984c5b96 47 # Presence request to increase testing coverage
bf1b5973
JM		 48 if "FAIL" not in dev[1].group_request("P2P_PRESENCE_REQ 30000"):
49 raise Exception("Invald P2P_PRESENCE_REQ accepted")
50 if "FAIL" not in dev[1].group_request("P2P_PRESENCE_REQ 30000 102400 30001"):
51 raise Exception("Invald P2P_PRESENCE_REQ accepted")
984c5b96
JM		 52 if "FAIL" in dev[1].group_request("P2P_PRESENCE_REQ 30000 102400"):
53 raise Exception("Could not send presence request")
d4f2ba74 54 ev = dev[1].wait_group_event(["P2P-PRESENCE-RESPONSE"], 10)
bf1b5973
JM		 55 if ev is None:
56 raise Exception("Timeout while waiting for Presence Response")
57 if "FAIL" in dev[1].group_request("P2P_PRESENCE_REQ 30000 102400 20000 102400"):
58 raise Exception("Could not send presence request")
c0b57b24 59 ev = dev[1].wait_group_event(["P2P-PRESENCE-RESPONSE"])
bf1b5973
JM		 60 if ev is None:
61 raise Exception("Timeout while waiting for Presence Response")
62 if "FAIL" in dev[1].group_request("P2P_PRESENCE_REQ"):
63 raise Exception("Could not send presence request")
c0b57b24 64 ev = dev[1].wait_group_event(["P2P-PRESENCE-RESPONSE"])
984c5b96
JM		 65 if ev is None:
66 raise Exception("Timeout while waiting for Presence Response")
67
ca9b78ad
JM		 68 if not dev[2].discover_peer(addr0):
69 raise Exception("Could not discover GO")
70 dev[0].dump_monitor()
71 dev[2].global_request("P2P_PROV_DISC " + addr0 + " display join")
72 ev = dev[0].wait_global_event(["P2P-PROV-DISC-SHOW-PIN"], timeout=10)
73 if ev is None:
74 raise Exception("GO did not report P2P-PROV-DISC-SHOW-PIN")
75 if "p2p_dev_addr=" + addr2 not in ev:
76 raise Exception("Unexpected P2P Device Address in event: " + ev)
77 if "group=" + dev[0].group_ifname not in ev:
78 raise Exception("Unexpected group interface in event: " + ev)
79 ev = dev[2].wait_global_event(["P2P-PROV-DISC-ENTER-PIN"], timeout=10)
80 if ev is None:
81 raise Exception("P2P-PROV-DISC-ENTER-PIN not reported")
82
19ae1d07
JM		 83 dev[0].remove_group()
84 dev[1].wait_go_ending_session()
85
86def test_autogo2(dev):
87 """P2P autonomous GO with a separate group interface and client joining group"""
9c01d6a9 88 dev[0].global_request("SET p2p_no_group_iface 0")
ee3f9f38 89 res = autogo(dev[0], freq=2437)
19ae1d07
JM		 90 if "p2p-wlan" not in res['ifname']:
91 raise Exception("Unexpected group interface name on GO")
92 if res['ifname'] not in utils.get_ifnames():
93 raise Exception("Could not find group interface netdev")
ee3f9f38 94 connect_cli(dev[0], dev[1], social=True, freq=2437)
4ea8d3b5 95 dev[0].remove_group()
2c914e24 96 dev[1].wait_go_ending_session()
19ae1d07
JM		 97 if res['ifname'] in utils.get_ifnames():
98 raise Exception("Group interface netdev was not removed")
99
100def test_autogo3(dev):
101 """P2P autonomous GO and client with a separate group interface joining group"""
9c01d6a9 102 dev[1].global_request("SET p2p_no_group_iface 0")
ee3f9f38
JM		 103 autogo(dev[0], freq=2462)
104 res = connect_cli(dev[0], dev[1], social=True, freq=2462)
19ae1d07
JM		 105 if "p2p-wlan" not in res['ifname']:
106 raise Exception("Unexpected group interface name on client")
107 if res['ifname'] not in utils.get_ifnames():
108 raise Exception("Could not find group interface netdev")
109 dev[0].remove_group()
110 dev[1].wait_go_ending_session()
111 dev[1].ping()
112 if res['ifname'] in utils.get_ifnames():
113 raise Exception("Group interface netdev was not removed")
114
115def test_autogo4(dev):
116 """P2P autonomous GO and client joining group (both with a separate group interface)"""
9c01d6a9
IP		 117 dev[0].global_request("SET p2p_no_group_iface 0")
118 dev[1].global_request("SET p2p_no_group_iface 0")
ee3f9f38
JM		 119 res1 = autogo(dev[0], freq=2412)
120 res2 = connect_cli(dev[0], dev[1], social=True, freq=2412)
19ae1d07
JM		 121 if "p2p-wlan" not in res1['ifname']:
122 raise Exception("Unexpected group interface name on GO")
123 if "p2p-wlan" not in res2['ifname']:
124 raise Exception("Unexpected group interface name on client")
125 ifnames = utils.get_ifnames()
126 if res1['ifname'] not in ifnames:
127 raise Exception("Could not find GO group interface netdev")
128 if res2['ifname'] not in ifnames:
129 raise Exception("Could not find client group interface netdev")
130 dev[0].remove_group()
131 dev[1].wait_go_ending_session()
132 dev[1].ping()
133 ifnames = utils.get_ifnames()
134 if res1['ifname'] in ifnames:
135 raise Exception("GO group interface netdev was not removed")
136 if res2['ifname'] in ifnames:
137 raise Exception("Client group interface netdev was not removed")
4ea8d3b5 138
0afb797e
JM		 139def test_autogo_m2d(dev):
140 """P2P autonomous GO and clients not authorized"""
ee3f9f38 141 autogo(dev[0], freq=2412)
0afb797e
JM		 142 go_addr = dev[0].p2p_dev_addr()
143
8031003f 144 dev[1].global_request("SET p2p_no_group_iface 0")
0afb797e
JM		 145 if not dev[1].discover_peer(go_addr, social=True):
146 raise Exception("GO " + go_addr + " not found")
147 dev[1].dump_monitor()
148
149 if not dev[2].discover_peer(go_addr, social=True):
150 raise Exception("GO " + go_addr + " not found")
151 dev[2].dump_monitor()
152
153 logger.info("Trying to join the group when GO has not authorized the client")
154 pin = dev[1].wps_read_pin()
155 cmd = "P2P_CONNECT " + go_addr + " " + pin + " join"
156 if "OK" not in dev[1].global_request(cmd):
157 raise Exception("P2P_CONNECT join failed")
158
159 pin = dev[2].wps_read_pin()
160 cmd = "P2P_CONNECT " + go_addr + " " + pin + " join"
161 if "OK" not in dev[2].global_request(cmd):
162 raise Exception("P2P_CONNECT join failed")
163
cfbdb995 164 ev = dev[1].wait_global_event(["WPS-M2D"], timeout=16)
0afb797e
JM		 165 if ev is None:
166 raise Exception("No global M2D event")
167 ifaces = dev[1].request("INTERFACES").splitlines()
168 iface = ifaces[0] if "p2p-wlan" in ifaces[0] else ifaces[1]
169 wpas = WpaSupplicant(ifname=iface)
170 ev = wpas.wait_event(["WPS-M2D"], timeout=10)
171 if ev is None:
172 raise Exception("No M2D event on group interface")
173
174 ev = dev[2].wait_global_event(["WPS-M2D"], timeout=10)
175 if ev is None:
176 raise Exception("No global M2D event (2)")
177 ev = dev[2].wait_event(["WPS-M2D"], timeout=10)
178 if ev is None:
179 raise Exception("No M2D event on group interface (2)")
180
9fd6804d 181@remote_compatible
0afb797e
JM		 182def test_autogo_fail(dev):
183 """P2P autonomous GO and incorrect PIN"""
ee3f9f38 184 autogo(dev[0], freq=2412)
0afb797e
JM		 185 go_addr = dev[0].p2p_dev_addr()
186 dev[0].p2p_go_authorize_client("00000000")
187
9c01d6a9 188 dev[1].global_request("SET p2p_no_group_iface 0")
0afb797e
JM		 189 if not dev[1].discover_peer(go_addr, social=True):
190 raise Exception("GO " + go_addr + " not found")
191 dev[1].dump_monitor()
192
193 logger.info("Trying to join the group when GO has not authorized the client")
194 pin = dev[1].wps_read_pin()
195 cmd = "P2P_CONNECT " + go_addr + " " + pin + " join"
196 if "OK" not in dev[1].global_request(cmd):
197 raise Exception("P2P_CONNECT join failed")
198
199 ev = dev[1].wait_global_event(["WPS-FAIL"], timeout=10)
200 if ev is None:
201 raise Exception("No global WPS-FAIL event")
202
78ebbf09 203def test_autogo_2cli(dev):
47c34473 204 """P2P autonomous GO and two clients joining group"""
ee3f9f38
JM		 205 autogo(dev[0], freq=2412)
206 connect_cli(dev[0], dev[1], social=True, freq=2412)
207 connect_cli(dev[0], dev[2], social=True, freq=2412)
78ebbf09 208 hwsim_utils.test_connectivity_p2p(dev[1], dev[2])
672f3a72 209 dev[0].global_request("P2P_REMOVE_CLIENT " + dev[1].p2p_dev_addr())
2c914e24 210 dev[1].wait_go_ending_session()
c93b6706 211 dev[0].global_request("P2P_REMOVE_CLIENT iface=" + dev[2].p2p_interface_addr())
2c914e24 212 dev[2].wait_go_ending_session()
c93b6706
JM		 213 if "FAIL" not in dev[0].global_request("P2P_REMOVE_CLIENT foo"):
214 raise Exception("Invalid P2P_REMOVE_CLIENT command accepted")
215 dev[0].remove_group()
78ebbf09 216
ab18b03b
JM		 217def test_autogo_pbc(dev):
218 """P2P autonomous GO and PBC"""
c0b57b24 219 dev[1].global_request("SET p2p_no_group_iface 0")
ee3f9f38 220 autogo(dev[0], freq=2412)
ab18b03b
JM		 221 if "FAIL" not in dev[0].group_request("WPS_PBC p2p_dev_addr=00:11:22:33:44"):
222 raise Exception("Invalid WPS_PBC succeeded")
223 if "OK" not in dev[0].group_request("WPS_PBC p2p_dev_addr=" + dev[1].p2p_dev_addr()):
224 raise Exception("WPS_PBC failed")
225 dev[2].p2p_connect_group(dev[0].p2p_dev_addr(), "pbc", timeout=0,
226 social=True)
5590d2ec 227 ev = dev[2].wait_global_event(["WPS-M2D"], timeout=15)
ab18b03b
JM		 228 if ev is None:
229 raise Exception("WPS-M2D not reported")
230 if "config_error=12" not in ev:
231 raise Exception("Unexpected config_error: " + ev)
232 dev[1].p2p_connect_group(dev[0].p2p_dev_addr(), "pbc", timeout=15,
233 social=True)
234
ae750570
JM		 235def test_autogo_pbc_session_overlap(dev, apdev):
236 """P2P autonomous GO and PBC session overlap"""
237 params = {"ssid": "wps", "eap_server": "1", "wps_state": "1"}
238 hapd = hostapd.add_ap(apdev[0], params)
239 hapd.request("WPS_PBC")
240 bssid = hapd.own_addr()
241 time.sleep(0.1)
242
243 dev[0].scan_for_bss(bssid, freq=2412)
244 dev[1].scan_for_bss(bssid, freq=2412)
245
246 dev[1].global_request("SET p2p_no_group_iface 0")
247 autogo(dev[0], freq=2412)
248 if "OK" not in dev[0].group_request("WPS_PBC p2p_dev_addr=" + dev[1].p2p_dev_addr()):
249 raise Exception("WPS_PBC failed")
250 dev[1].p2p_connect_group(dev[0].p2p_dev_addr(), "pbc", timeout=15,
251 social=True)
252 hapd.disable()
253 remove_group(dev[0], dev[1])
254 dev[0].flush_scan_cache()
255 dev[1].flush_scan_cache()
256
7cb08cdb 257def test_autogo_tdls(dev):
47c34473 258 """P2P autonomous GO and two clients using TDLS"""
07a2e61b
JM		 259 go = dev[0]
260 logger.info("Start autonomous GO with fixed parameters " + go.ifname)
261 id = go.add_network()
262 go.set_network_quoted(id, "ssid", "DIRECT-tdls")
263 go.set_network_quoted(id, "psk", "12345678")
264 go.set_network(id, "mode", "3")
265 go.set_network(id, "disabled", "2")
ee3f9f38 266 res = go.p2p_start_go(persistent=id, freq="2462")
07a2e61b 267 logger.debug("res: " + str(res))
8efc83d4
JA		 268 Wlantest.setup(go, True)
269 wt = Wlantest()
c7860beb
JM		 270 wt.flush()
271 wt.add_passphrase("12345678")
ee3f9f38
JM		 272 connect_cli(go, dev[1], social=True, freq=2462)
273 connect_cli(go, dev[2], social=True, freq=2462)
7cb08cdb 274 hwsim_utils.test_connectivity_p2p(dev[1], dev[2])
07a2e61b
JM		 275 bssid = dev[0].p2p_interface_addr()
276 addr1 = dev[1].p2p_interface_addr()
7cb08cdb
JM		 277 addr2 = dev[2].p2p_interface_addr()
278 dev[1].tdls_setup(addr2)
279 time.sleep(1)
280 hwsim_utils.test_connectivity_p2p(dev[1], dev[2])
bc6e3288 281 conf = wt.get_tdls_counter("setup_conf_ok", bssid, addr1, addr2)
07a2e61b
JM		 282 if conf == 0:
283 raise Exception("No TDLS Setup Confirm (success) seen")
bc6e3288 284 dl = wt.get_tdls_counter("valid_direct_link", bssid, addr1, addr2)
07a2e61b
JM		 285 if dl == 0:
286 raise Exception("No valid frames through direct link")
bc6e3288 287 wt.tdls_clear(bssid, addr1, addr2)
7cb08cdb
JM		 288 dev[1].tdls_teardown(addr2)
289 time.sleep(1)
bc6e3288 290 teardown = wt.get_tdls_counter("teardown", bssid, addr1, addr2)
d014a150 291 if teardown == 0:
07a2e61b 292 raise Exception("No TDLS Setup Teardown seen")
bc6e3288 293 wt.tdls_clear(bssid, addr1, addr2)
7cb08cdb 294 hwsim_utils.test_connectivity_p2p(dev[1], dev[2])
bc6e3288 295 ap_path = wt.get_tdls_counter("valid_ap_path", bssid, addr1, addr2)
07a2e61b
JM		 296 if ap_path == 0:
297 raise Exception("No valid frames via AP path")
bc6e3288 298 direct_link = wt.get_tdls_counter("valid_direct_link", bssid, addr1, addr2)
07a2e61b
JM		 299 if direct_link > 0:
300 raise Exception("Unexpected frames through direct link")
c7860beb 301 idirect_link = wt.get_tdls_counter("invalid_direct_link", bssid, addr1,
bc6e3288 302 addr2)
07a2e61b
JM		 303 if idirect_link > 0:
304 raise Exception("Unexpected frames through direct link (invalid)")
7cb08cdb
JM		 305 dev[2].remove_group()
306 dev[1].remove_group()
307 dev[0].remove_group()
7ebf841f
JM		 308
309def test_autogo_legacy(dev):
310 """P2P autonomous GO and legacy clients"""
ee3f9f38 311 res = autogo(dev[0], freq=2462)
f44c45ac
JM		 312 if dev[0].get_group_status_field("passphrase", extra="WPS") != res['passphrase']:
313 raise Exception("passphrase mismatch")
acd62025 314 if dev[0].group_request("P2P_GET_PASSPHRASE") != res['passphrase']:
934d5b04 315 raise Exception("passphrase mismatch(2)")
7ebf841f
JM		 316
317 logger.info("Connect P2P client")
ee3f9f38 318 connect_cli(dev[0], dev[1], social=True, freq=2462)
7ebf841f 319
dd15d448
JM		 320 if "FAIL" not in dev[1].request("P2P_GET_PASSPHRASE"):
321 raise Exception("P2P_GET_PASSPHRASE succeeded on P2P Client")
322
7ebf841f
JM		 323 logger.info("Connect legacy WPS client")
324 pin = dev[2].wps_read_pin()
325 dev[0].p2p_go_authorize_client(pin)
7ebf841f
JM		 326 dev[2].request("P2P_SET disabled 1")
327 dev[2].dump_monitor()
328 dev[2].request("WPS_PIN any " + pin)
5f35a5e2 329 dev[2].wait_connected(timeout=30)
7ebf841f
JM		 330 status = dev[2].get_status()
331 if status['wpa_state'] != 'COMPLETED':
332 raise Exception("Not fully connected")
333 hwsim_utils.test_connectivity_p2p_sta(dev[1], dev[2])
334 dev[2].request("DISCONNECT")
335
336 logger.info("Connect legacy non-WPS client")
337 dev[2].request("FLUSH")
338 dev[2].request("P2P_SET disabled 1")
339 dev[2].connect(ssid=res['ssid'], psk=res['passphrase'], proto='RSN',
340 key_mgmt='WPA-PSK', pairwise='CCMP', group='CCMP',
341 scan_freq=res['freq'])
342 hwsim_utils.test_connectivity_p2p_sta(dev[1], dev[2])
343 dev[2].request("DISCONNECT")
344
345 dev[0].remove_group()
346 dev[1].wait_go_ending_session()
393e9019
JM		 347
348def test_autogo_chan_switch(dev):
349 """P2P autonomous GO switching channels"""
5e8f2319
JM		 350 run_autogo_chan_switch(dev)
351
352def run_autogo_chan_switch(dev):
393e9019 353 autogo(dev[0], freq=2417)
5e8f2319 354 connect_cli(dev[0], dev[1], freq=2417)
4041d2af 355 res = dev[0].group_request("CHAN_SWITCH 5 2422")
393e9019
JM		 356 if "FAIL" in res:
357 # for now, skip test since mac80211_hwsim support is not yet widely
358 # deployed
81e787b7 359 raise HwsimSkip("Assume mac80211_hwsim did not support channel switching")
4041d2af 360 ev = dev[0].wait_group_event(["AP-CSA-FINISHED"], timeout=10)
393e9019
JM		 361 if ev is None:
362 raise Exception("CSA finished event timed out")
363 if "freq=2422" not in ev:
364 raise Exception("Unexpected cahnnel in CSA finished event")
365 dev[0].dump_monitor()
366 dev[1].dump_monitor()
367 time.sleep(0.1)
368 hwsim_utils.test_connectivity_p2p(dev[0], dev[1])
8c7559ee 369
5e8f2319
JM		 370 dev[0].remove_group()
371 dev[1].wait_go_ending_session()
372
373def test_autogo_chan_switch_group_iface(dev):
374 """P2P autonomous GO switching channels (separate group interface)"""
375 dev[0].global_request("SET p2p_no_group_iface 0")
376 run_autogo_chan_switch(dev)
377
9fd6804d 378@remote_compatible
8c7559ee
JM		 379def test_autogo_extra_cred(dev):
380 """P2P autonomous GO sending two WPS credentials"""
381 if "FAIL" in dev[0].request("SET wps_testing_dummy_cred 1"):
382 raise Exception("Failed to enable test mode")
ee3f9f38
JM		 383 autogo(dev[0], freq=2412)
384 connect_cli(dev[0], dev[1], social=True, freq=2412)
8c7559ee
JM		 385 dev[0].remove_group()
386 dev[1].wait_go_ending_session()
75ee44f2
JM		 387
388def test_autogo_ifdown(dev):
389 """P2P autonomous GO and external ifdown"""
390 wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
391 wpas.interface_add("wlan5")
392 res = autogo(wpas)
393 wpas.dump_monitor()
394 wpas.interface_remove("wlan5")
395 wpas.interface_add("wlan5")
396 res = autogo(wpas)
397 wpas.dump_monitor()
c4668009 398 subprocess.call(['ifconfig', res['ifname'], 'down'])
75ee44f2
JM		 399 ev = wpas.wait_global_event(["P2P-GROUP-REMOVED"], timeout=10)
400 if ev is None:
401 raise Exception("Group removal not reported")
402 if res['ifname'] not in ev:
403 raise Exception("Unexpected group removal event: " + ev)
42216792 404
9fd6804d 405@remote_compatible
42216792
JM		 406def test_autogo_start_during_scan(dev):
407 """P2P autonomous GO started during ongoing manual scan"""
408 try:
409 # use autoscan to set scan_req = MANUAL_SCAN_REQ
410 if "OK" not in dev[0].request("AUTOSCAN periodic:1"):
411 raise Exception("Failed to set autoscan")
ee3f9f38
JM		 412 autogo(dev[0], freq=2462)
413 connect_cli(dev[0], dev[1], social=True, freq=2462)
42216792
JM		 414 dev[0].remove_group()
415 dev[1].wait_go_ending_session()
416 finally:
417 dev[0].request("AUTOSCAN ")
31424fa7
JM		 418
419def test_autogo_passphrase_len(dev):
420 """P2P autonomous GO and longer passphrase"""
421 try:
422 if "OK" not in dev[0].request("SET p2p_passphrase_len 13"):
423 raise Exception("Failed to set passphrase length")
ee3f9f38 424 res = autogo(dev[0], freq=2412)
31424fa7
JM		 425 if len(res['passphrase']) != 13:
426 raise Exception("Unexpected passphrase length")
427 if dev[0].get_group_status_field("passphrase", extra="WPS") != res['passphrase']:
428 raise Exception("passphrase mismatch")
429
430 logger.info("Connect P2P client")
ee3f9f38 431 connect_cli(dev[0], dev[1], social=True, freq=2412)
31424fa7
JM		 432
433 logger.info("Connect legacy WPS client")
434 pin = dev[2].wps_read_pin()
435 dev[0].p2p_go_authorize_client(pin)
436 dev[2].request("P2P_SET disabled 1")
437 dev[2].dump_monitor()
438 dev[2].request("WPS_PIN any " + pin)
5f35a5e2 439 dev[2].wait_connected(timeout=30)
31424fa7
JM		 440 status = dev[2].get_status()
441 if status['wpa_state'] != 'COMPLETED':
442 raise Exception("Not fully connected")
443 dev[2].request("DISCONNECT")
444
445 logger.info("Connect legacy non-WPS client")
446 dev[2].request("FLUSH")
447 dev[2].request("P2P_SET disabled 1")
448 dev[2].connect(ssid=res['ssid'], psk=res['passphrase'], proto='RSN',
449 key_mgmt='WPA-PSK', pairwise='CCMP', group='CCMP',
450 scan_freq=res['freq'])
451 hwsim_utils.test_connectivity_p2p_sta(dev[1], dev[2])
452 dev[2].request("DISCONNECT")
453
454 dev[0].remove_group()
455 dev[1].wait_go_ending_session()
456 finally:
457 dev[0].request("SET p2p_passphrase_len 8")
d885a0ba 458
9fd6804d 459@remote_compatible
d885a0ba
JM		 460def test_autogo_bridge(dev):
461 """P2P autonomous GO in a bridge"""
462 try:
463 # use autoscan to set scan_req = MANUAL_SCAN_REQ
464 if "OK" not in dev[0].request("AUTOSCAN periodic:1"):
465 raise Exception("Failed to set autoscan")
466 autogo(dev[0])
bbcbbd37 467 ifname = dev[0].get_group_ifname()
bb04a9a9
JA		 468 dev[0].cmd_execute(['brctl', 'addbr', 'p2p-br0'])
469 dev[0].cmd_execute(['brctl', 'setfd', 'p2p-br0', '0'])
470 dev[0].cmd_execute(['brctl', 'addif', 'p2p-br0', ifname])
471 dev[0].cmd_execute(['ip', 'link', 'set', 'dev', 'p2p-br0', 'up'])
d885a0ba 472 time.sleep(0.1)
bb04a9a9 473 dev[0].cmd_execute(['brctl', 'delif', 'p2p-br0', ifname])
d885a0ba 474 time.sleep(0.1)
bb04a9a9 475 dev[0].cmd_execute(['ip', 'link', 'set', 'dev', 'p2p-br0', 'down'])
d885a0ba 476 time.sleep(0.1)
bb04a9a9 477 dev[0].cmd_execute(['brctl', 'delbr', 'p2p-br0'])
d885a0ba
JM		 478 ev = dev[0].wait_global_event(["P2P-GROUP-REMOVED"], timeout=1)
479 if ev is not None:
480 raise Exception("P2P group removed unexpectedly")
bbcbbd37 481 if dev[0].get_group_status_field('wpa_state') != "COMPLETED":
d885a0ba
JM		 482 raise Exception("Unexpected wpa_state")
483 dev[0].remove_group()
484 finally:
377babb2 485 dev[0].request("AUTOSCAN ")
bb04a9a9
JA		 486 dev[0].cmd_execute(['brctl', 'delif', 'p2p-br0', ifname,
487 '2>', '/dev/null'], shell=True)
488 dev[0].cmd_execute(['ip', 'link', 'set', 'dev', 'p2p-br0', 'down',
489 '2>', '/dev/null'], shell=True)
490 dev[0].cmd_execute(['brctl', 'delbr', 'p2p-br0', '2>', '/dev/null'],
491 shell=True)
777bbe7a 492
9fd6804d 493@remote_compatible
777bbe7a
JM		 494def test_presence_req_on_group_interface(dev):
495 """P2P_PRESENCE_REQ on group interface"""
9c01d6a9 496 dev[1].global_request("SET p2p_no_group_iface 0")
777bbe7a
JM		 497 res = autogo(dev[0], freq=2437)
498 res = connect_cli(dev[0], dev[1], social=True, freq=2437)
499 if "FAIL" in dev[1].group_request("P2P_PRESENCE_REQ 30000 102400"):
500 raise Exception("Could not send presence request")
501 ev = dev[1].wait_group_event(["P2P-PRESENCE-RESPONSE"])
502 if ev is None:
503 raise Exception("Timeout while waiting for Presence Response")
504 dev[0].remove_group()
505 dev[1].wait_go_ending_session()
d2b84e43
JM		 506
507def test_autogo_join_auto_go_not_found(dev):
508 """P2P_CONNECT-auto not finding GO"""
509 wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
510 wpas.interface_add("wlan5")
511 wpas.request("P2P_SET listen_channel 1")
512 wpas.global_request("SET p2p_no_group_iface 0")
513 autogo(wpas, freq=2412)
514 addr = wpas.p2p_dev_addr()
515 bssid = wpas.p2p_interface_addr()
4b9d79b6 516 wpas.dump_monitor()
d2b84e43
JM		 517
518 dev[1].global_request("SET p2p_no_group_iface 0")
519 dev[1].scan_for_bss(bssid, freq=2412)
520 # This makes the GO not show up in the scan iteration following the
521 # P2P_CONNECT command by stopping beaconing and handling Probe Request
522 # frames externally (but not really replying to them). P2P listen mode is
523 # needed to keep the GO listening on the operating channel for the PD
524 # exchange.
525 if "OK" not in wpas.group_request("STOP_AP"):
526 raise Exception("STOP_AP failed")
4b9d79b6 527 wpas.dump_monitor()
d2b84e43
JM		 528 wpas.group_request("SET ext_mgmt_frame_handling 1")
529 wpas.p2p_listen()
4b9d79b6 530 wpas.dump_monitor()
d2b84e43
JM		 531 time.sleep(0.02)
532 dev[1].global_request("P2P_CONNECT " + addr + " pbc auto")
533
c0b57b24 534 ev = dev[1].wait_global_event(["P2P-FALLBACK-TO-GO-NEG-ENABLED"], 15)
4b9d79b6 535 wpas.dump_monitor()
d2b84e43
JM		 536 if ev is None:
537 raise Exception("Could not trigger old-scan-only case")
538 return
539
c0b57b24 540 ev = dev[1].wait_global_event(["P2P-FALLBACK-TO-GO-NEG"], 15)
d2b84e43
JM		 541 wpas.remove_group()
542 if ev is None:
543 raise Exception("Fallback to GO Negotiation not seen")
544 if "reason=GO-not-found" not in ev:
545 raise Exception("Unexpected reason for fallback: " + ev)
4b9d79b6 546 wpas.dump_monitor()
9177b0a8
JM		 547
548def test_autogo_join_auto(dev):
549 """P2P_CONNECT-auto joining a group"""
550 autogo(dev[0])
551 addr = dev[0].p2p_dev_addr()
552 if "OK" not in dev[1].global_request("P2P_CONNECT " + addr + " pbc auto"):
553 raise Exception("P2P_CONNECT failed")
554
555 ev = dev[0].wait_global_event(["P2P-PROV-DISC-PBC-REQ"], timeout=15)
556 if ev is None:
557 raise Exception("Timeout on P2P-PROV-DISC-PBC-REQ")
558 if "group=" + dev[0].group_ifname not in ev:
559 raise Exception("Unexpected PD event contents: " + ev)
560 dev[0].group_request("WPS_PBC")
561
562 ev = dev[1].wait_global_event(["P2P-GROUP-STARTED"], timeout=15)
563 if ev is None:
564 raise Exception("Joining the group timed out")
565 dev[1].group_form_result(ev)
566
567 dev[0].remove_group()
568 dev[1].wait_go_ending_session()
569 dev[1].flush_scan_cache()
570
9fd6804d 571@remote_compatible
9177b0a8
JM		 572def test_autogo_join_auto_go_neg(dev):
573 """P2P_CONNECT-auto fallback to GO Neg"""
380f3a8b 574 dev[1].flush_scan_cache()
9177b0a8
JM		 575 dev[0].p2p_listen()
576 addr = dev[0].p2p_dev_addr()
be4a0d0d
JM		 577 if not dev[1].discover_peer(addr, social=True):
578 raise Exception("Peer not found")
579 dev[1].p2p_stop_find()
9177b0a8
JM		 580 if "OK" not in dev[1].global_request("P2P_CONNECT " + addr + " pbc auto"):
581 raise Exception("P2P_CONNECT failed")
582
583 ev = dev[0].wait_global_event(["P2P-GO-NEG-REQUEST"], timeout=15)
584 if ev is None:
585 raise Exception("Timeout on P2P-GO-NEG-REQUEST")
586 peer = ev.split(' ')[1]
587 dev[0].p2p_go_neg_init(peer, None, "pbc", timeout=15, go_intent=15)
588
589 ev = dev[1].wait_global_event(["P2P-FALLBACK-TO-GO-NEG"], timeout=1)
590 if ev is None:
591 raise Exception("No P2P-FALLBACK-TO-GO-NEG event seen")
592 if "P2P-FALLBACK-TO-GO-NEG-ENABLED" in ev:
593 ev = dev[1].wait_global_event(["P2P-FALLBACK-TO-GO-NEG"], timeout=1)
594 if ev is None:
595 raise Exception("No P2P-FALLBACK-TO-GO-NEG event seen")
596 if "reason=peer-not-running-GO" not in ev:
597 raise Exception("Unexpected reason: " + ev)
598
599 ev = dev[1].wait_global_event(["P2P-GROUP-STARTED"], timeout=15)
600 if ev is None:
601 raise Exception("Joining the group timed out")
602 dev[1].group_form_result(ev)
603
604 dev[0].remove_group()
605 dev[1].wait_go_ending_session()
606 dev[1].flush_scan_cache()
607
9fd6804d 608@remote_compatible
9177b0a8
JM		 609def test_autogo_join_auto_go_neg_after_seeing_go(dev):
610 """P2P_CONNECT-auto fallback to GO Neg after seeing GO"""
611 autogo(dev[0], freq=2412)
612 addr = dev[0].p2p_dev_addr()
613 bssid = dev[0].p2p_interface_addr()
614 dev[1].scan_for_bss(bssid, freq=2412)
615 dev[0].remove_group()
616 dev[0].p2p_listen()
617
618 if "OK" not in dev[1].global_request("P2P_CONNECT " + addr + " pbc auto"):
619 raise Exception("P2P_CONNECT failed")
620
621 ev = dev[1].wait_global_event(["P2P-FALLBACK-TO-GO-NEG-ENABLED"],
622 timeout=15)
623 if ev is None:
624 raise Exception("No P2P-FALLBACK-TO-GO-NEG-ENABLED event seen")
625
626 ev = dev[0].wait_global_event(["P2P-GO-NEG-REQUEST"], timeout=15)
627 if ev is None:
628 raise Exception("Timeout on P2P-GO-NEG-REQUEST")
629 peer = ev.split(' ')[1]
630 dev[0].p2p_go_neg_init(peer, None, "pbc", timeout=15, go_intent=15)
631
632 ev = dev[1].wait_global_event(["P2P-FALLBACK-TO-GO-NEG"], timeout=1)
633 if ev is None:
634 raise Exception("No P2P-FALLBACK-TO-GO-NEG event seen")
635 if "reason=no-ACK-to-PD-Req" not in ev and "reason=PD-failed" not in ev:
636 raise Exception("Unexpected reason: " + ev)
637
638 ev = dev[1].wait_global_event(["P2P-GROUP-STARTED"], timeout=15)
639 if ev is None:
640 raise Exception("Joining the group timed out")
641 dev[1].group_form_result(ev)
642
643 dev[0].remove_group()
644 dev[1].wait_go_ending_session()
645 dev[1].flush_scan_cache()
6d0b4474
JM		 646
647def test_go_search_non_social(dev):
648 """P2P_FIND with freq parameter to scan a single channel"""
649 addr0 = dev[0].p2p_dev_addr()
650 autogo(dev[0], freq=2422)
651 dev[1].p2p_find(freq=2422)
c0b57b24 652 ev = dev[1].wait_global_event(["P2P-DEVICE-FOUND"], timeout=3.5)
6d0b4474 653 if ev is None:
62e0e57a
JM		 654 dev[1].p2p_stop_find()
655 dev[1].p2p_find(freq=2422)
656 ev = dev[1].wait_global_event(["P2P-DEVICE-FOUND"], timeout=3.5)
657 if ev is None:
658 raise Exception("Did not find GO quickly enough")
6d0b4474 659 dev[2].p2p_listen()
c0b57b24 660 ev = dev[1].wait_global_event(["P2P-DEVICE-FOUND"], timeout=5)
6d0b4474
JM		 661 if ev is None:
662 raise Exception("Did not find peer")
663 dev[2].p2p_stop_find()
664 dev[1].p2p_stop_find()
665 dev[0].remove_group()
bfc048b4 666
8a5b0bbd
JM		 667def test_go_search_non_social2(dev):
668 """P2P_FIND with freq parameter to scan a single channel (2)"""
669 addr0 = dev[0].p2p_dev_addr()
670 dev[1].p2p_find(freq=2422)
671 # Wait for the first p2p_find scan round to complete before starting GO
672 time.sleep(1)
673 autogo(dev[0], freq=2422)
674 # Verify that p2p_find is still scanning the specified frequency
675 ev = dev[1].wait_global_event(["P2P-DEVICE-FOUND"], timeout=5)
676 if ev is None:
677 dev[1].p2p_stop_find()
678 raise Exception("Did not find GO quickly enough")
679 # Verify that p2p_find is scanning the social channels
680 dev[2].p2p_listen()
681 ev = dev[1].wait_global_event(["P2P-DEVICE-FOUND"], timeout=5)
682 if ev is None:
683 raise Exception("Did not find peer")
684 dev[2].p2p_stop_find()
685 dev[1].p2p_stop_find()
686 dev[0].remove_group()
687 dev[1].dump_monitor()
688
689 # Verify that social channel as the specific channel works
690 dev[1].p2p_find(freq=2412)
691 time.sleep(0.5)
692 dev[2].p2p_listen()
693 ev = dev[1].wait_global_event(["P2P-DEVICE-FOUND"], timeout=5)
694 if ev is None:
695 raise Exception("Did not find peer (2)")
696
bfc048b4
JM		 697def test_autogo_many(dev):
698 """P2P autonomous GO with large number of GO instances"""
9c01d6a9 699 dev[0].global_request("SET p2p_no_group_iface 0")
bfc048b4
JM		 700 for i in range(100):
701 if "OK" not in dev[0].global_request("P2P_GROUP_ADD freq=2412"):
702 logger.info("Was able to add %d groups" % i)
703 if i < 5:
704 raise Exception("P2P_GROUP_ADD failed")
705 stop_ev = dev[0].wait_global_event(["P2P-GROUP-REMOVE"], timeout=1)
706 if stop_ev is not None:
707 raise Exception("Unexpected P2P-GROUP-REMOVE event")
708 break
709 ev = dev[0].wait_global_event(["P2P-GROUP-STARTED"], timeout=5)
710 if ev is None:
711 raise Exception("GO start up timed out")
712 dev[0].group_form_result(ev)
713
714 for i in dev[0].global_request("INTERFACES").splitlines():
715 dev[0].request("P2P_GROUP_REMOVE " + i)
716 dev[0].dump_monitor()
717 dev[0].request("P2P_GROUP_REMOVE *")
eb9c1554
JM		 718
719def test_autogo_many_clients(dev):
720 """P2P autonomous GO and many clients (P2P IE fragmentation)"""
721 try:
722 _test_autogo_many_clients(dev)
723 finally:
c0b57b24
IP		 724 dev[0].global_request("SET device_name Device A")
725 dev[1].global_request("SET device_name Device B")
726 dev[2].global_request("SET device_name Device C")
eb9c1554
JM		 727
728def _test_autogo_many_clients(dev):
729 # These long device names will push the P2P IE contents beyond the limit
730 # that requires fragmentation.
731 name0 = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA"
732 name1 = "BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB"
733 name2 = "CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCC"
734 name3 = "DDDDDDDDDDDDDDDDDDDDDDDDDDDDDDDD"
c0b57b24
IP		 735 dev[0].global_request("SET device_name " + name0)
736 dev[1].global_request("SET device_name " + name1)
737 dev[2].global_request("SET device_name " + name2)
eb9c1554
JM		 738
739 addr0 = dev[0].p2p_dev_addr()
740 res = autogo(dev[0], freq=2412)
741 bssid = dev[0].p2p_interface_addr()
742
743 connect_cli(dev[0], dev[1], social=True, freq=2412)
744 dev[0].dump_monitor()
745 connect_cli(dev[0], dev[2], social=True, freq=2412)
746 dev[0].dump_monitor()
747
748 wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
749 wpas.interface_add("wlan5")
c0b57b24
IP		 750 wpas.global_request("SET device_name " + name3)
751 wpas.global_request("SET sec_device_type 1-11111111-1")
752 wpas.global_request("SET sec_device_type 2-22222222-2")
753 wpas.global_request("SET sec_device_type 3-33333333-3")
754 wpas.global_request("SET sec_device_type 4-44444444-4")
755 wpas.global_request("SET sec_device_type 5-55555555-5")
eb9c1554
JM		 756 connect_cli(dev[0], wpas, social=True, freq=2412)
757 dev[0].dump_monitor()
758
759 dev[1].dump_monitor()
760 dev[1].p2p_find(freq=2412)
761 ev1 = dev[1].wait_global_event(["P2P-DEVICE-FOUND"], timeout=10)
762 if ev1 is None:
763 raise Exception("Could not find peer (1)")
764 ev2 = dev[1].wait_global_event(["P2P-DEVICE-FOUND"], timeout=10)
765 if ev2 is None:
766 raise Exception("Could not find peer (2)")
767 ev3 = dev[1].wait_global_event(["P2P-DEVICE-FOUND"], timeout=10)
768 if ev3 is None:
769 raise Exception("Could not find peer (3)")
770 dev[1].p2p_stop_find()
771
fab49f61 772 for i in [name0, name2, name3]:
eb9c1554
JM		 773 if i not in ev1 and i not in ev2 and i not in ev3:
774 raise Exception('name "%s" not found' % i)
9464e099
JM		 775
776def rx_pd_req(dev):
777 msg = dev.mgmt_rx()
778 if msg is None:
779 raise Exception("MGMT-RX timeout")
780 p2p = parse_p2p_public_action(msg['payload'])
781 if p2p is None:
782 raise Exception("Not a P2P Public Action frame " + str(dialog_token))
783 if p2p['subtype'] != P2P_PROV_DISC_REQ:
784 raise Exception("Unexpected subtype %d" % p2p['subtype'])
785 p2p['freq'] = msg['freq']
786 return p2p
787
9fd6804d 788@remote_compatible
9464e099
JM		 789def test_autogo_scan(dev):
790 """P2P autonomous GO and no P2P IE in Probe Response scan results"""
791 addr0 = dev[0].p2p_dev_addr()
792 addr1 = dev[1].p2p_dev_addr()
793 dev[0].p2p_start_go(freq=2412, persistent=True)
794 bssid = dev[0].p2p_interface_addr()
795
796 dev[1].discover_peer(addr0)
797 dev[1].p2p_stop_find()
798 ev = dev[1].wait_global_event(["P2P-FIND-STOPPED"], timeout=2)
799 time.sleep(0.1)
800 dev[1].flush_scan_cache()
801
802 pin = dev[1].wps_read_pin()
803 dev[0].group_request("WPS_PIN any " + pin)
804
805 try:
806 dev[1].request("SET p2p_disabled 1")
807 dev[1].request("SCAN freq=2412")
808 ev = dev[1].wait_event(["CTRL-EVENT-SCAN-RESULTS"])
809 if ev is None:
810 raise Exception("Active scan did not complete")
811 finally:
812 dev[1].request("SET p2p_disabled 0")
813
814 for i in range(2):
815 dev[1].request("SCAN freq=2412 passive=1")
816 ev = dev[1].wait_event(["CTRL-EVENT-SCAN-RESULTS"])
817 if ev is None:
818 raise Exception("Scan did not complete")
819
820 # Disable management frame processing for a moment to skip Probe Response
821 # frame with P2P IE.
822 dev[0].group_request("SET ext_mgmt_frame_handling 1")
823
a7efe6c3 824 dev[1].global_request("P2P_CONNECT " + bssid + " " + pin + " freq=2412 join")
9464e099
JM		 825
826 # Skip the first Probe Request frame
827 ev = dev[0].wait_group_event(["MGMT-RX"], timeout=10)
828 if ev is None:
829 raise Exception("No Probe Request frame seen")
830 if not ev.split(' ')[4].startswith("40"):
831 raise Exception("Not a Probe Request frame")
832
a7efe6c3
AS		 833 # If a P2P Device is not used, the PD Request will be received on the group
834 # interface (which is actually wlan0, since a separate interface is not
835 # used), which was set to external management frame handling, so need to
836 # reply to it manually.
837 res = dev[0].get_driver_status()
838 if not (int(res['capa.flags'], 0) & 0x20000000):
839 # Reply to PD Request while still filtering Probe Request frames
840 msg = rx_pd_req(dev[0])
841 mgmt_tx(dev[0], "MGMT_TX {} {} freq={} wait_time=10 no_cck=1 action={}".format(addr1, addr0, 2412, "0409506f9a0908%02xdd0a0050f204100800020008" % msg['dialog_token']))
9464e099
JM		 842
843 # Skip Probe Request frames until something else is received
844 for i in range(10):
845 ev = dev[0].wait_group_event(["MGMT-RX"], timeout=10)
846 if ev is None:
847 raise Exception("No frame seen")
848 if not ev.split(' ')[4].startswith("40"):
849 break
850
851 # Allow wpa_supplicant to process authentication and association
852 dev[0].group_request("SET ext_mgmt_frame_handling 0")
853
854 # Joining the group should succeed and indicate persistent group based on
855 # Beacon frame P2P IE.
856 ev = dev[1].wait_global_event(["P2P-GROUP-STARTED"], timeout=10)
857 if ev is None:
858 raise Exception("Failed to join group")
859 if "[PERSISTENT]" not in ev:
860 raise Exception("Did not recognize group as persistent")
861 dev[0].remove_group()
862 dev[1].wait_go_ending_session()
05032725 863
9fd6804d 864@remote_compatible
05032725
JM		 865def test_autogo_join_before_found(dev):
866 """P2P client joining a group before having found GO Device Address"""
9c01d6a9 867 dev[0].global_request("SET p2p_no_group_iface 0")
05032725
JM		 868 res = autogo(dev[0], freq=2412)
869 if "p2p-wlan" not in res['ifname']:
870 raise Exception("Unexpected group interface name on GO")
871 status = dev[0].get_group_status()
872 bssid = status['bssid']
873
874 pin = dev[1].wps_read_pin()
875 dev[0].p2p_go_authorize_client(pin)
876 cmd = "P2P_CONNECT " + bssid + " " + pin + " join freq=2412"
877 if "OK" not in dev[1].global_request(cmd):
878 raise Exception("P2P_CONNECT join failed")
879 ev = dev[1].wait_global_event(["P2P-GROUP-STARTED"], timeout=15)
880 if ev is None:
881 raise Exception("Joining the group timed out")
882 dev[0].remove_group()
883 dev[1].wait_go_ending_session()
6baab31c
JM		 884
885def test_autogo_noa(dev):
886 """P2P autonomous GO and NoA"""
887 res = autogo(dev[0])
888 dev[0].group_request("P2P_SET noa 1,5,20")
889 dev[0].group_request("P2P_SET noa 255,10,50")
890
891 # Connect and disconnect legacy STA to check NoA special cases
892 try:
893 dev[1].request("SET p2p_disabled 1")
894 dev[1].connect(ssid=res['ssid'], psk=res['passphrase'], proto='RSN',
895 key_mgmt='WPA-PSK', pairwise='CCMP', group='CCMP',
896 scan_freq=res['freq'])
897 dev[0].group_request("P2P_SET noa 255,15,55")
898 dev[1].request("DISCONNECT")
899 dev[1].wait_disconnected()
900 finally:
901 dev[1].request("SET p2p_disabled 0")
902
903 dev[0].group_request("P2P_SET noa 0,0,0")
e0e1fde8
JM		 904
905def test_autogo_interworking(dev):
906 """P2P autonomous GO and Interworking"""
907 try:
908 run_autogo_interworking(dev)
909 finally:
910 dev[0].set("go_interworking", "0")
911
912def run_autogo_interworking(dev):
1d914d01
AO		 913 dev[0].global_request("SET go_interworking 1")
914 dev[0].global_request("SET go_access_network_type 1")
915 dev[0].global_request("SET go_internet 1")
916 dev[0].global_request("SET go_venue_group 2")
917 dev[0].global_request("SET go_venue_type 3")
e0e1fde8
JM		 918 res = autogo(dev[0])
919 bssid = dev[0].p2p_interface_addr()
920 dev[1].scan_for_bss(bssid, freq=res['freq'])
921 bss = dev[1].get_bss(bssid)
922 dev[0].remove_group()
923 if '6b03110203' not in bss['ie']:
924 raise Exception("Interworking element not seen")
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