1# Test cases for dynamic BSS changes with hostapd
2# Copyright (c) 2013, Qualcomm Atheros, Inc.
3#
4# This software may be distributed under the terms of the BSD license.
5# See README for more details.
6
7from remotehost import remote_compatible
8import time
9import subprocess
10import logging
11logger = logging.getLogger()
12import os
13
14import hwsim_utils
15import hostapd
16from utils import *
17from test_ap_acs import force_prev_ap_on_24g
18
19@remote_compatible
20def test_ap_change_ssid(dev, apdev):
21    """Dynamic SSID change with hostapd and WPA2-PSK"""
22    params = hostapd.wpa2_params(ssid="test-wpa2-psk-start",
23                                 passphrase="12345678")
24    hapd = hostapd.add_ap(apdev[0], params)
25    id = dev[0].connect("test-wpa2-psk-start", psk="12345678",
26                        scan_freq="2412")
27    dev[0].request("DISCONNECT")
28
29    logger.info("Change SSID dynamically")
30    res = hapd.request("SET ssid test-wpa2-psk-new")
31    if "OK" not in res:
32        raise Exception("SET command failed")
33    res = hapd.request("RELOAD")
34    if "OK" not in res:
35        raise Exception("RELOAD command failed")
36
37    dev[0].set_network_quoted(id, "ssid", "test-wpa2-psk-new")
38    dev[0].connect_network(id)
39
40def test_ap_change_ssid_wps(dev, apdev):
41    """Dynamic SSID change with hostapd and WPA2-PSK using WPS"""
42    params = hostapd.wpa2_params(ssid="test-wpa2-psk-start",
43                                 passphrase="12345678")
44    # Use a PSK and not the passphrase, because the PSK will have to be computed
45    # again if we use a passphrase.
46    del params["wpa_passphrase"]
47    params["wpa_psk"] = "0123456789abcdef0123456789abcdef0123456789abcdef0123456789abcdef"
48
49    params.update({"wps_state": "2", "eap_server": "1"})
50    bssid = apdev[0]['bssid']
51    hapd = hostapd.add_ap(apdev[0], params)
52
53    new_ssid = "test-wpa2-psk-new"
54    logger.info("Change SSID dynamically (WPS)")
55    res = hapd.request("SET ssid " + new_ssid)
56    if "OK" not in res:
57        raise Exception("SET command failed")
58    res = hapd.request("RELOAD")
59    if "OK" not in res:
60        raise Exception("RELOAD command failed")
61
62    # Connect to the new ssid using wps:
63    hapd.request("WPS_PBC")
64    if "PBC Status: Active" not in hapd.request("WPS_GET_STATUS"):
65        raise Exception("PBC status not shown correctly")
66
67    dev[0].scan_for_bss(apdev[0]['bssid'], freq="2412", force_scan=True)
68    dev[0].request("WPS_PBC")
69    dev[0].wait_connected(timeout=20)
70    status = dev[0].get_status()
71    if status['wpa_state'] != 'COMPLETED' or status['bssid'] != bssid:
72        raise Exception("Not fully connected")
73    if status['ssid'] != new_ssid:
74        raise Exception("Unexpected SSID %s != %s" % (status['ssid'], new_ssid))
75    dev[0].request("DISCONNECT")
76    dev[0].wait_disconnected()
77
78def test_ap_reload_invalid(dev, apdev):
79    """hostapd RELOAD with invalid configuration"""
80    params = hostapd.wpa2_params(ssid="test-wpa2-psk-start",
81                                 passphrase="12345678")
82    hapd = hostapd.add_ap(apdev[0], params)
83    # Enable IEEE 802.11d without specifying country code
84    hapd.set("ieee80211d", "1")
85    if "FAIL" not in hapd.request("RELOAD"):
86        raise Exception("RELOAD command succeeded")
87    dev[0].connect("test-wpa2-psk-start", psk="12345678", scan_freq="2412")
88
89def multi_check(apdev, dev, check, scan_opt=True):
90    id = []
91    num_bss = len(check)
92    for i in range(0, num_bss):
93        dev[i].request("BSS_FLUSH 0")
94        dev[i].dump_monitor()
95    for i in range(0, num_bss):
96        if check[i]:
97            continue
98        id.append(dev[i].connect("bss-" + str(i + 1), key_mgmt="NONE",
99                                 scan_freq="2412", wait_connect=False))
100    for i in range(num_bss):
101        if not check[i]:
102            continue
103        bssid = hostapd.bssid_inc(apdev, i)
104        if scan_opt:
105            dev[i].scan_for_bss(bssid, freq=2412)
106        id.append(dev[i].connect("bss-" + str(i + 1), key_mgmt="NONE",
107                                 scan_freq="2412", wait_connect=True))
108    first = True
109    for i in range(num_bss):
110        if not check[i]:
111            timeout = 0.2 if first else 0.01
112            first = False
113            ev = dev[i].wait_event(["CTRL-EVENT-CONNECTED"], timeout=timeout)
114            if ev:
115                raise Exception("Unexpected connection")
116
117    for i in range(0, num_bss):
118        dev[i].remove_network(id[i])
119    for i in range(num_bss):
120        if check[i]:
121            dev[i].wait_disconnected(timeout=5)
122
123    res = ''
124    for i in range(0, num_bss):
125        res = res + dev[i].request("BSS RANGE=ALL MASK=0x2")
126
127    for i in range(0, num_bss):
128        if not check[i]:
129            bssid = '02:00:00:00:03:0' + str(i)
130            if bssid in res:
131                raise Exception("Unexpected BSS" + str(i) + " in scan results")
132
133def test_ap_bss_add_remove(dev, apdev):
134    """Dynamic BSS add/remove operations with hostapd"""
135    try:
136        _test_ap_bss_add_remove(dev, apdev)
137    finally:
138        for i in range(3):
139            dev[i].request("SCAN_INTERVAL 5")
140
141def _test_ap_bss_add_remove(dev, apdev):
142    for i in range(3):
143        dev[i].flush_scan_cache()
144        dev[i].request("SCAN_INTERVAL 1")
145    ifname1 = apdev[0]['ifname']
146    ifname2 = apdev[0]['ifname'] + '-2'
147    ifname3 = apdev[0]['ifname'] + '-3'
148    logger.info("Set up three BSSes one by one")
149    hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
150    multi_check(apdev[0], dev, [True, False, False])
151    hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
152    multi_check(apdev[0], dev, [True, True, False])
153    hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
154    multi_check(apdev[0], dev, [True, True, True])
155
156    logger.info("Remove the last BSS and re-add it")
157    hostapd.remove_bss(apdev[0], ifname3)
158    multi_check(apdev[0], dev, [True, True, False])
159    hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
160    multi_check(apdev[0], dev, [True, True, True])
161
162    logger.info("Remove the middle BSS and re-add it")
163    hostapd.remove_bss(apdev[0], ifname2)
164    multi_check(apdev[0], dev, [True, False, True])
165    hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
166    multi_check(apdev[0], dev, [True, True, True])
167
168    logger.info("Remove the first BSS and re-add it and other BSSs")
169    hostapd.remove_bss(apdev[0], ifname1)
170    multi_check(apdev[0], dev, [False, False, False])
171    hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
172    hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
173    hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
174    multi_check(apdev[0], dev, [True, True, True])
175
176    logger.info("Remove two BSSes and re-add them")
177    hostapd.remove_bss(apdev[0], ifname2)
178    multi_check(apdev[0], dev, [True, False, True])
179    hostapd.remove_bss(apdev[0], ifname3)
180    multi_check(apdev[0], dev, [True, False, False])
181    hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
182    multi_check(apdev[0], dev, [True, True, False])
183    hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
184    multi_check(apdev[0], dev, [True, True, True])
185
186    logger.info("Remove three BSSes in and re-add them")
187    hostapd.remove_bss(apdev[0], ifname3)
188    multi_check(apdev[0], dev, [True, True, False])
189    hostapd.remove_bss(apdev[0], ifname2)
190    multi_check(apdev[0], dev, [True, False, False])
191    hostapd.remove_bss(apdev[0], ifname1)
192    multi_check(apdev[0], dev, [False, False, False])
193    hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
194    multi_check(apdev[0], dev, [True, False, False])
195    hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
196    multi_check(apdev[0], dev, [True, True, False])
197    hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
198    multi_check(apdev[0], dev, [True, True, True])
199
200    logger.info("Test error handling if a duplicate ifname is tried")
201    hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf', ignore_error=True)
202    multi_check(apdev[0], dev, [True, True, True])
203
204def test_ap_bss_add_remove_during_ht_scan(dev, apdev):
205    """Dynamic BSS add during HT40 co-ex scan"""
206    for i in range(3):
207        dev[i].flush_scan_cache()
208    ifname1 = apdev[0]['ifname']
209    ifname2 = apdev[0]['ifname'] + '-2'
210    confname1 = hostapd.cfg_file(apdev[0], "bss-ht40-1.conf")
211    confname2 = hostapd.cfg_file(apdev[0], "bss-ht40-2.conf")
212    hapd_global = hostapd.HostapdGlobal(apdev)
213    hapd_global.send_file(confname1, confname1)
214    hapd_global.send_file(confname2, confname2)
215    hostapd.add_bss(apdev[0], ifname1, confname1)
216    hostapd.add_bss(apdev[0], ifname2, confname2)
217    multi_check(apdev[0], dev, [True, True], scan_opt=False)
218    hostapd.remove_bss(apdev[0], ifname2)
219    hostapd.remove_bss(apdev[0], ifname1)
220
221    hostapd.add_bss(apdev[0], ifname1, confname1)
222    hostapd.add_bss(apdev[0], ifname2, confname2)
223    hostapd.remove_bss(apdev[0], ifname2)
224    multi_check(apdev[0], dev, [True, False], scan_opt=False)
225    hostapd.remove_bss(apdev[0], ifname1)
226
227    hostapd.add_bss(apdev[0], ifname1, confname1)
228    hostapd.add_bss(apdev[0], ifname2, confname2)
229    hostapd.remove_bss(apdev[0], ifname1)
230    multi_check(apdev[0], dev, [False, False])
231
232def test_ap_multi_bss_config(dev, apdev):
233    """hostapd start with a multi-BSS configuration file"""
234    for i in range(3):
235        dev[i].flush_scan_cache()
236    ifname1 = apdev[0]['ifname']
237    ifname2 = apdev[0]['ifname'] + '-2'
238    ifname3 = apdev[0]['ifname'] + '-3'
239    logger.info("Set up three BSSes with one configuration file")
240    hapd = hostapd.add_iface(apdev[0], 'multi-bss.conf')
241    hapd.enable()
242    multi_check(apdev[0], dev, [True, True, True])
243    hostapd.remove_bss(apdev[0], ifname2)
244    multi_check(apdev[0], dev, [True, False, True])
245    hostapd.remove_bss(apdev[0], ifname3)
246    multi_check(apdev[0], dev, [True, False, False])
247    hostapd.remove_bss(apdev[0], ifname1)
248    multi_check(apdev[0], dev, [False, False, False])
249
250    hapd = hostapd.add_iface(apdev[0], 'multi-bss.conf')
251    hapd.enable()
252    hostapd.remove_bss(apdev[0], ifname1)
253    multi_check(apdev[0], dev, [False, False, False])
254
255def invalid_ap(ap):
256    logger.info("Trying to start AP " + ap['ifname'] + " with invalid configuration")
257    hapd = hostapd.add_ap(ap, {}, no_enable=True)
258    hapd.set("ssid", "invalid-config")
259    hapd.set("channel", "12345")
260    try:
261        hapd.enable()
262        started = True
263    except Exception as e:
264        started = False
265    if started:
266        raise Exception("ENABLE command succeeded unexpectedly")
267    return hapd
268
269@remote_compatible
270def test_ap_invalid_config(dev, apdev):
271    """Try to start AP with invalid configuration and fix configuration"""
272    hapd = invalid_ap(apdev[0])
273
274    logger.info("Fix configuration and start AP again")
275    hapd.set("channel", "1")
276    hapd.enable()
277    dev[0].connect("invalid-config", key_mgmt="NONE", scan_freq="2412")
278
279@remote_compatible
280def test_ap_invalid_config2(dev, apdev):
281    """Try to start AP with invalid configuration and remove interface"""
282    hapd = invalid_ap(apdev[0])
283    logger.info("Remove interface with failed configuration")
284    hostapd.remove_bss(apdev[0])
285
286def test_ap_remove_during_acs(dev, apdev):
287    """Remove interface during ACS"""
288    force_prev_ap_on_24g(apdev[0])
289    params = hostapd.wpa2_params(ssid="test-acs-remove", passphrase="12345678")
290    params['channel'] = '0'
291    hostapd.add_ap(apdev[0], params)
292    hostapd.remove_bss(apdev[0])
293
294def test_ap_remove_during_acs2(dev, apdev):
295    """Remove BSS during ACS in multi-BSS configuration"""
296    force_prev_ap_on_24g(apdev[0])
297    ifname = apdev[0]['ifname']
298    ifname2 = ifname + "-2"
299    hapd = hostapd.add_ap(apdev[0], {}, no_enable=True)
300    hapd.set("ssid", "test-acs-remove")
301    hapd.set("channel", "0")
302    hapd.set("bss", ifname2)
303    hapd.set("ssid", "test-acs-remove2")
304    hapd.enable()
305    hostapd.remove_bss(apdev[0])
306
307def test_ap_remove_during_acs3(dev, apdev):
308    """Remove second BSS during ACS in multi-BSS configuration"""
309    force_prev_ap_on_24g(apdev[0])
310    ifname = apdev[0]['ifname']
311    ifname2 = ifname + "-2"
312    hapd = hostapd.add_ap(apdev[0], {}, no_enable=True)
313    hapd.set("ssid", "test-acs-remove")
314    hapd.set("channel", "0")
315    hapd.set("bss", ifname2)
316    hapd.set("ssid", "test-acs-remove2")
317    hapd.enable()
318    hostapd.remove_bss(apdev[0], ifname2)
319
320@remote_compatible
321def test_ap_remove_during_ht_coex_scan(dev, apdev):
322    """Remove interface during HT co-ex scan"""
323    params = hostapd.wpa2_params(ssid="test-ht-remove", passphrase="12345678")
324    params['channel'] = '1'
325    params['ht_capab'] = "[HT40+]"
326    ifname = apdev[0]['ifname']
327    hostapd.add_ap(apdev[0], params)
328    hostapd.remove_bss(apdev[0])
329
330def test_ap_remove_during_ht_coex_scan2(dev, apdev):
331    """Remove BSS during HT co-ex scan in multi-BSS configuration"""
332    ifname = apdev[0]['ifname']
333    ifname2 = ifname + "-2"
334    hapd = hostapd.add_ap(apdev[0], {}, no_enable=True)
335    hapd.set("ssid", "test-ht-remove")
336    hapd.set("channel", "1")
337    hapd.set("ht_capab", "[HT40+]")
338    hapd.set("bss", ifname2)
339    hapd.set("ssid", "test-ht-remove2")
340    hapd.enable()
341    hostapd.remove_bss(apdev[0])
342
343def test_ap_remove_during_ht_coex_scan3(dev, apdev):
344    """Remove second BSS during HT co-ex scan in multi-BSS configuration"""
345    ifname = apdev[0]['ifname']
346    ifname2 = ifname + "-2"
347    hapd = hostapd.add_ap(apdev[0], {}, no_enable=True)
348    hapd.set("ssid", "test-ht-remove")
349    hapd.set("channel", "1")
350    hapd.set("ht_capab", "[HT40+]")
351    hapd.set("bss", ifname2)
352    hapd.set("ssid", "test-ht-remove2")
353    hapd.enable()
354    hostapd.remove_bss(apdev[0], ifname2)
355
356@remote_compatible
357def test_ap_enable_disable_reenable(dev, apdev):
358    """Enable, disable, re-enable AP"""
359    hapd = hostapd.add_ap(apdev[0], {}, no_enable=True)
360    hapd.set("ssid", "dynamic")
361    hapd.enable()
362    ev = hapd.wait_event(["AP-ENABLED"], timeout=30)
363    if ev is None:
364        raise Exception("AP startup timed out")
365    dev[0].connect("dynamic", key_mgmt="NONE", scan_freq="2412")
366    hapd.disable()
367    ev = hapd.wait_event(["AP-DISABLED"], timeout=30)
368    if ev is None:
369        raise Exception("AP disabling timed out")
370    dev[0].wait_disconnected(timeout=10)
371    hapd.enable()
372    ev = hapd.wait_event(["AP-ENABLED"], timeout=30)
373    if ev is None:
374        raise Exception("AP startup timed out")
375    dev[1].connect("dynamic", key_mgmt="NONE", scan_freq="2412")
376    dev[0].wait_connected(timeout=10)
377
378def test_ap_double_disable(dev, apdev):
379    """Double DISABLE regression test"""
380    hapd = hostapd.add_bss(apdev[0], apdev[0]['ifname'], 'bss-1.conf')
381    hostapd.add_bss(apdev[0], apdev[0]['ifname'] + '-2', 'bss-2.conf')
382    hapd.disable()
383    if "FAIL" not in hapd.request("DISABLE"):
384        raise Exception("Second DISABLE accepted unexpectedly")
385    hapd.enable()
386    hapd.disable()
387    if "FAIL" not in hapd.request("DISABLE"):
388        raise Exception("Second DISABLE accepted unexpectedly")
389
390def test_ap_bss_add_many(dev, apdev):
391    """Large number of BSS add operations with hostapd"""
392    try:
393        _test_ap_bss_add_many(dev, apdev)
394    finally:
395        dev[0].request("SCAN_INTERVAL 5")
396        ifname = apdev[0]['ifname']
397        hapd = hostapd.HostapdGlobal(apdev[0])
398        hapd.flush()
399        for i in range(16):
400            ifname2 = ifname + '-' + str(i)
401            hapd.remove(ifname2)
402        try:
403            os.remove('/tmp/hwsim-bss.conf')
404        except:
405            pass
406
407def _test_ap_bss_add_many(dev, apdev):
408    ifname = apdev[0]['ifname']
409    hostapd.add_bss(apdev[0], ifname, 'bss-1.conf')
410    fname = '/tmp/hwsim-bss.conf'
411    for i in range(16):
412        ifname2 = ifname + '-' + str(i)
413        with open(fname, 'w') as f:
414            f.write("driver=nl80211\n")
415            f.write("hw_mode=g\n")
416            f.write("channel=1\n")
417            f.write("ieee80211n=1\n")
418            f.write("interface=%s\n" % ifname2)
419            f.write("bssid=02:00:00:00:03:%02x\n" % (i + 1))
420            f.write("ctrl_interface=/var/run/hostapd\n")
421            f.write("ssid=test-%d\n" % i)
422        hostapd.add_bss(apdev[0], ifname2, fname)
423        os.remove(fname)
424
425    dev[0].request("SCAN_INTERVAL 1")
426    dev[0].connect("bss-1", key_mgmt="NONE", scan_freq="2412")
427    dev[0].request("DISCONNECT")
428    dev[0].wait_disconnected(timeout=5)
429    for i in range(16):
430        dev[0].connect("test-%d" % i, key_mgmt="NONE", scan_freq="2412")
431        dev[0].request("DISCONNECT")
432        dev[0].wait_disconnected(timeout=5)
433        ifname2 = ifname + '-' + str(i)
434        hostapd.remove_bss(apdev[0], ifname2)
435
436def test_ap_bss_add_reuse_existing(dev, apdev):
437    """Dynamic BSS add operation reusing existing interface"""
438    ifname1 = apdev[0]['ifname']
439    ifname2 = apdev[0]['ifname'] + '-2'
440    hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
441    subprocess.check_call(["iw", "dev", ifname1, "interface", "add", ifname2,
442                           "type", "__ap"])
443    hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
444    hostapd.remove_bss(apdev[0], ifname2)
445    subprocess.check_call(["iw", "dev", ifname2, "del"])
446
447def hapd_bss_out_of_mem(hapd, phy, confname, count, func):
448    with alloc_fail(hapd, count, func):
449        hapd_global = hostapd.HostapdGlobal()
450        res = hapd_global.ctrl.request("ADD bss_config=" + phy + ":" + confname)
451        if "OK" in res:
452            raise Exception("add_bss succeeded")
453
454def test_ap_bss_add_out_of_memory(dev, apdev):
455    """Running out of memory while adding a BSS"""
456    hapd2 = hostapd.add_ap(apdev[1], {"ssid": "open"})
457
458    ifname1 = apdev[0]['ifname']
459    ifname2 = apdev[0]['ifname'] + '-2'
460
461    confname1 = hostapd.cfg_file(apdev[0], "bss-1.conf")
462    confname2 = hostapd.cfg_file(apdev[0], "bss-2.conf")
463    hapd_bss_out_of_mem(hapd2, 'phy3', confname1, 1, 'hostapd_add_iface')
464    for i in range(1, 3):
465        hapd_bss_out_of_mem(hapd2, 'phy3', confname1,
466                            i, 'hostapd_interface_init_bss')
467    hapd_bss_out_of_mem(hapd2, 'phy3', confname1,
468                        1, 'ieee802_11_build_ap_params')
469
470    hostapd.add_bss(apdev[0], ifname1, confname1)
471
472    hapd_bss_out_of_mem(hapd2, 'phy3', confname2,
473                        1, 'hostapd_interface_init_bss')
474    hapd_bss_out_of_mem(hapd2, 'phy3', confname2,
475                        1, 'ieee802_11_build_ap_params')
476
477    hostapd.add_bss(apdev[0], ifname2, confname2)
478    hostapd.remove_bss(apdev[0], ifname2)
479    hostapd.remove_bss(apdev[0], ifname1)
480
481def test_ap_multi_bss(dev, apdev):
482    """Multiple BSSes with hostapd"""
483    ifname1 = apdev[0]['ifname']
484    ifname2 = apdev[0]['ifname'] + '-2'
485    hapd1 = hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
486    hapd2 = hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
487    dev[0].connect("bss-1", key_mgmt="NONE", scan_freq="2412")
488    dev[1].connect("bss-2", key_mgmt="NONE", scan_freq="2412")
489
490    hwsim_utils.test_connectivity(dev[0], hapd1)
491    hwsim_utils.test_connectivity(dev[1], hapd2)
492
493    sta0 = hapd1.get_sta(dev[0].own_addr())
494    sta1 = hapd2.get_sta(dev[1].own_addr())
495    if 'rx_packets' not in sta0 or int(sta0['rx_packets']) < 1:
496        raise Exception("sta0 did not report receiving packets")
497    if 'rx_packets' not in sta1 or int(sta1['rx_packets']) < 1:
498        raise Exception("sta1 did not report receiving packets")
499
500@remote_compatible
501def test_ap_add_with_driver(dev, apdev):
502    """Add hostapd interface with driver specified"""
503    ifname = apdev[0]['ifname']
504    try:
505       hostname = apdev[0]['hostname']
506    except:
507       hostname = None
508    hapd_global = hostapd.HostapdGlobal(apdev[0])
509    hapd_global.add(ifname, driver="nl80211")
510    port = hapd_global.get_ctrl_iface_port(ifname)
511    hapd = hostapd.Hostapd(ifname, hostname, port)
512    hapd.set_defaults()
513    hapd.set("ssid", "dynamic")
514    hapd.enable()
515    ev = hapd.wait_event(["AP-ENABLED"], timeout=30)
516    if ev is None:
517        raise Exception("AP startup timed out")
518    dev[0].connect("dynamic", key_mgmt="NONE", scan_freq="2412")
519    dev[0].request("DISCONNECT")
520    dev[0].wait_disconnected()
521    hapd.disable()
522
523def test_ap_duplicate_bssid(dev, apdev):
524    """Duplicate BSSID"""
525    params = {"ssid": "test"}
526    hapd = hostapd.add_ap(apdev[0], params, no_enable=True)
527    hapd.enable()
528    ifname2 = apdev[0]['ifname'] + '-2'
529    ifname3 = apdev[0]['ifname'] + '-3'
530    # "BSS 'wlan3-2' may not have BSSID set to the MAC address of the radio"
531    try:
532        hostapd.add_bss(apdev[0], ifname2, 'bss-2-dup.conf')
533        raise Exception("BSS add succeeded unexpectedly")
534    except Exception as e:
535        if "Could not add hostapd BSS" in str(e):
536            pass
537        else:
538            raise
539
540    hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
541
542    dev[0].connect("test", key_mgmt="NONE", scan_freq="2412")
543    dev[0].request("DISCONNECT")
544    dev[0].wait_disconnected()
545
546    hapd.set("bssid", "02:00:00:00:03:02")
547    hapd.disable()
548    # "Duplicate BSSID 02:00:00:00:03:02 on interface 'wlan3-3' and 'wlan3'."
549    if "FAIL" not in hapd.request("ENABLE"):
550        raise Exception("ENABLE with duplicate BSSID succeeded unexpectedly")
551
552def test_ap_bss_config_file(dev, apdev, params):
553    """hostapd BSS config file"""
554    pidfile = params['prefix'] + ".hostapd.pid"
555    logfile = params['prefix'] + ".hostapd-log"
556    prg = os.path.join(params['logdir'], 'alt-hostapd/hostapd/hostapd')
557    if not os.path.exists(prg):
558        prg = '../../hostapd/hostapd'
559    phy = get_phy(apdev[0])
560    confname1 = hostapd.cfg_file(apdev[0], "bss-1.conf")
561    confname2 = hostapd.cfg_file(apdev[0], "bss-2.conf")
562    confname3 = hostapd.cfg_file(apdev[0], "bss-3.conf")
563
564    cmd = [prg, '-B', '-dddt', '-P', pidfile, '-f', logfile, '-S', '-T',
565           '-b', phy + ':' + confname1, '-b', phy + ':' + confname2,
566           '-b', phy + ':' + confname3]
567    res = subprocess.check_call(cmd)
568    if res != 0:
569        raise Exception("Could not start hostapd: %s" % str(res))
570    multi_check(apdev[0], dev, [True, True, True])
571    for i in range(0, 3):
572        dev[i].request("DISCONNECT")
573
574    hapd = hostapd.Hostapd(apdev[0]['ifname'])
575    hapd.ping()
576    if "OK" not in hapd.request("TERMINATE"):
577        raise Exception("Failed to terminate hostapd process")
578    ev = hapd.wait_event(["CTRL-EVENT-TERMINATING"], timeout=15)
579    if ev is None:
580        raise Exception("CTRL-EVENT-TERMINATING not seen")
581    for i in range(30):
582        time.sleep(0.1)
583        if not os.path.exists(pidfile):
584            break
585    if os.path.exists(pidfile):
586        raise Exception("PID file exits after process termination")
587
588def test_ap_reload_bss_only(dev, apdev, params):
589    """Dynamic SSID change on only one BSS using RELOAD_BSS"""
590    ifname1 = apdev[0]['ifname']
591    ifname2 = apdev[0]['ifname'] + '-2'
592    hapd1 = hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
593    hapd2 = hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
594    id = dev[0].connect("bss-1", key_mgmt="NONE", scan_freq="2412")
595    dev[1].connect("bss-2", key_mgmt="NONE", scan_freq="2412")
596
597    res = hapd1.request("SET ssid test-new-ssid")
598    if "OK" not in res:
599        raise Exception("SET command failed")
600    res = hapd1.request("RELOAD_BSS")
601    if "OK" not in res:
602        raise Exception("RELOAD_BSS command failed")
603
604    ev = dev[1].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=1)
605    if ev is not None:
606        raise Exception("Unexpected disconnection when RELOAD_BSS was sent on another BSS.")
607
608    dev[0].set_network_quoted(id, "ssid", "test-new-ssid")
609    dev[0].connect_network(id)
610