![Jouni Malinen](/assets/img/avatar_default.png)
It was possible for regulatory domain changes to "leak" into following test cases in number of cases where the cfg80211 BSS table remained after regulatory domain had been restored to world roaming. Try to make this less likely to occur by explicitly clearing BSS table at the end of test cases that use different regulatory domain. This makes P2P test cases that verify channel selection based on world roaming rules more robust. Signed-off-by: Jouni Malinen <j@w1.fi>
555 lines
23 KiB
Python
555 lines
23 KiB
Python
# P2P channel selection test cases
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# Copyright (c) 2014, 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 logging
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logger = logging.getLogger()
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import os
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import subprocess
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import time
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import hostapd
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import hwsim_utils
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from wpasupplicant import WpaSupplicant
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from hwsim import HWSimRadio
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from test_p2p_grpform import go_neg_pin_authorized
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from test_p2p_grpform import check_grpform_results
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from test_p2p_grpform import remove_group
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from test_p2p_grpform import go_neg_pbc
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from test_p2p_autogo import autogo
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def set_country(country):
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subprocess.call(['sudo', 'iw', 'reg', 'set', country])
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time.sleep(0.1)
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def test_p2p_channel_5ghz(dev):
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"""P2P group formation with 5 GHz preference"""
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try:
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set_country("US")
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[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
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r_dev=dev[1], r_intent=0,
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test_data=False)
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check_grpform_results(i_res, r_res)
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freq = int(i_res['freq'])
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if freq < 5000:
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raise Exception("Unexpected channel %d MHz - did not follow 5 GHz preference" % freq)
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remove_group(dev[0], dev[1])
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finally:
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set_country("00")
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dev[1].flush_scan_cache()
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def test_p2p_channel_5ghz_no_vht(dev):
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"""P2P group formation with 5 GHz preference when VHT channels are disallowed"""
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try:
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set_country("US")
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dev[0].request("P2P_SET disallow_freq 5180-5240")
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[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
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r_dev=dev[1], r_intent=0,
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test_data=False)
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check_grpform_results(i_res, r_res)
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freq = int(i_res['freq'])
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if freq < 5000:
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raise Exception("Unexpected channel %d MHz - did not follow 5 GHz preference" % freq)
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remove_group(dev[0], dev[1])
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finally:
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set_country("00")
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dev[0].request("P2P_SET disallow_freq ")
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dev[1].flush_scan_cache()
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def test_p2p_channel_random_social(dev):
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"""P2P group formation with 5 GHz preference but all 5 GHz channels disabled"""
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try:
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set_country("US")
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dev[0].request("SET p2p_oper_channel 11")
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dev[0].request("P2P_SET disallow_freq 5000-6000,2462")
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[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
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r_dev=dev[1], r_intent=0,
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test_data=False)
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check_grpform_results(i_res, r_res)
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freq = int(i_res['freq'])
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if freq not in [ 2412, 2437, 2462 ]:
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raise Exception("Unexpected channel %d MHz - did not pick random social channel" % freq)
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remove_group(dev[0], dev[1])
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finally:
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set_country("00")
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dev[0].request("P2P_SET disallow_freq ")
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dev[1].flush_scan_cache()
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def test_p2p_channel_random(dev):
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"""P2P group formation with 5 GHz preference but all 5 GHz channels and all social channels disabled"""
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try:
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set_country("US")
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dev[0].request("SET p2p_oper_channel 11")
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dev[0].request("P2P_SET disallow_freq 5000-6000,2412,2437,2462")
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[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
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r_dev=dev[1], r_intent=0,
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test_data=False)
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check_grpform_results(i_res, r_res)
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freq = int(i_res['freq'])
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if freq > 2500 or freq in [ 2412, 2437, 2462 ]:
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raise Exception("Unexpected channel %d MHz" % freq)
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remove_group(dev[0], dev[1])
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finally:
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set_country("00")
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dev[0].request("P2P_SET disallow_freq ")
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dev[1].flush_scan_cache()
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def test_p2p_channel_random_social_with_op_class_change(dev, apdev, params):
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"""P2P group formation using random social channel with oper class change needed"""
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try:
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set_country("US")
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logger.info("Start group on 5 GHz")
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[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
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r_dev=dev[1], r_intent=0,
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test_data=False)
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check_grpform_results(i_res, r_res)
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freq = int(i_res['freq'])
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if freq < 5000:
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raise Exception("Unexpected channel %d MHz - did not pick 5 GHz preference" % freq)
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remove_group(dev[0], dev[1])
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logger.info("Disable 5 GHz and try to re-start group based on 5 GHz preference")
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dev[0].request("SET p2p_oper_reg_class 115")
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dev[0].request("SET p2p_oper_channel 36")
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dev[0].request("P2P_SET disallow_freq 5000-6000")
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[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
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r_dev=dev[1], r_intent=0,
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test_data=False)
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check_grpform_results(i_res, r_res)
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freq = int(i_res['freq'])
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if freq not in [ 2412, 2437, 2462 ]:
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raise Exception("Unexpected channel %d MHz - did not pick random social channel" % freq)
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remove_group(dev[0], dev[1])
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try:
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arg = [ "tshark",
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"-r", os.path.join(params['logdir'], "hwsim0.pcapng"),
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"-Y", "wifi_p2p.public_action.subtype == 0",
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"-V" ]
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cmd = subprocess.Popen(arg, stdout=subprocess.PIPE,
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stderr=open('/dev/null', 'w'))
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except Exception, e:
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logger.info("Could run run tshark check: " + str(e))
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cmd = None
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pass
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if cmd:
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last = None
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for l in cmd.stdout.read().splitlines():
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if "Operating Channel:" not in l:
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continue
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last = l
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if last is None:
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raise Exception("Could not find GO Negotiation Request")
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if "Operating Class 81" not in last:
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raise Exception("Unexpected operating class: " + last.strip())
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finally:
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set_country("00")
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dev[0].request("P2P_SET disallow_freq ")
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dev[0].request("SET p2p_oper_reg_class 0")
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dev[0].request("SET p2p_oper_channel 0")
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dev[1].flush_scan_cache()
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def test_p2p_channel_avoid(dev):
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"""P2P and avoid frequencies driver event"""
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try:
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set_country("US")
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if "OK" not in dev[0].request("DRIVER_EVENT AVOID_FREQUENCIES 5000-6000,2412,2437,2462"):
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raise Exception("Could not simulate driver event")
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ev = dev[0].wait_event(["CTRL-EVENT-AVOID-FREQ"], timeout=10)
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if ev is None:
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raise Exception("No CTRL-EVENT-AVOID-FREQ event")
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[i_res, r_res] = go_neg_pin_authorized(i_dev=dev[0], i_intent=15,
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r_dev=dev[1], r_intent=0,
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test_data=False)
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check_grpform_results(i_res, r_res)
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freq = int(i_res['freq'])
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if freq > 2500 or freq in [ 2412, 2437, 2462 ]:
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raise Exception("Unexpected channel %d MHz" % freq)
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if "OK" not in dev[0].request("DRIVER_EVENT AVOID_FREQUENCIES"):
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raise Exception("Could not simulate driver event(2)")
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ev = dev[0].wait_event(["CTRL-EVENT-AVOID-FREQ"], timeout=10)
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if ev is None:
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raise Exception("No CTRL-EVENT-AVOID-FREQ event")
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ev = dev[0].wait_event(["P2P-REMOVE-AND-REFORM-GROUP"], timeout=1)
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if ev is not None:
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raise Exception("Unexpected P2P-REMOVE-AND-REFORM-GROUP event")
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if "OK" not in dev[0].request("DRIVER_EVENT AVOID_FREQUENCIES " + str(freq)):
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raise Exception("Could not simulate driver event(3)")
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ev = dev[0].wait_event(["CTRL-EVENT-AVOID-FREQ"], timeout=10)
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if ev is None:
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raise Exception("No CTRL-EVENT-AVOID-FREQ event")
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ev = dev[0].wait_event(["P2P-REMOVE-AND-REFORM-GROUP"], timeout=10)
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if ev is None:
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raise Exception("No P2P-REMOVE-AND-REFORM-GROUP event")
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finally:
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set_country("00")
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dev[0].request("DRIVER_EVENT AVOID_FREQUENCIES")
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dev[1].flush_scan_cache()
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def test_autogo_following_bss(dev, apdev):
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"""P2P autonomous GO operate on the same channel as station interface"""
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if dev[0].get_mcc() > 1:
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logger.info("test mode: MCC")
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dev[0].request("SET p2p_no_group_iface 0")
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channels = { 3 : "2422", 5 : "2432", 9 : "2452" }
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for key in channels:
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hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid" : 'ap-test',
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"channel" : str(key) })
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dev[0].connect("ap-test", key_mgmt="NONE",
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scan_freq=str(channels[key]))
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res_go = autogo(dev[0])
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if res_go['freq'] != channels[key]:
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raise Exception("Group operation channel is not the same as on connected station interface")
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hwsim_utils.test_connectivity(dev[0], hapd)
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dev[0].remove_group(res_go['ifname'])
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def test_go_neg_with_bss_connected(dev, apdev):
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"""P2P channel selection: GO negotiation when station interface is connected"""
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dev[0].flush_scan_cache()
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dev[1].flush_scan_cache()
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dev[0].request("SET p2p_no_group_iface 0")
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hapd = hostapd.add_ap(apdev[0]['ifname'],
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{ "ssid": 'bss-2.4ghz', "channel": '5' })
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dev[0].connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2432")
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#dev[0] as GO
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[i_res, r_res] = go_neg_pbc(i_dev=dev[0], i_intent=10, r_dev=dev[1],
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r_intent=1)
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check_grpform_results(i_res, r_res)
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if i_res['role'] != "GO":
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raise Exception("GO not selected according to go_intent")
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if i_res['freq'] != "2432":
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raise Exception("Group formed on a different frequency than BSS")
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hwsim_utils.test_connectivity(dev[0], hapd)
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dev[0].remove_group(i_res['ifname'])
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if dev[0].get_mcc() > 1:
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logger.info("Skip as-client case due to MCC being enabled")
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return;
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#dev[0] as client
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[i_res2, r_res2] = go_neg_pbc(i_dev=dev[0], i_intent=1, r_dev=dev[1],
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r_intent=10)
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check_grpform_results(i_res2, r_res2)
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if i_res2['role'] != "client":
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raise Exception("GO not selected according to go_intent")
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if i_res2['freq'] != "2432":
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raise Exception("Group formed on a different frequency than BSS")
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hwsim_utils.test_connectivity(dev[0], hapd)
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def test_autogo_with_bss_on_disallowed_chan(dev, apdev):
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"""P2P channel selection: Autonomous GO with BSS on a disallowed channel"""
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with HWSimRadio(n_channels=2) as (radio, iface):
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wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
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wpas.interface_add(iface)
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wpas.request("SET p2p_no_group_iface 0")
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if wpas.get_mcc() < 2:
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raise Exception("New radio does not support MCC")
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try:
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hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": 'bss-2.4ghz',
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"channel": '1' })
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wpas.request("P2P_SET disallow_freq 2412")
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wpas.connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2412")
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res = autogo(wpas)
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if res['freq'] == "2412":
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raise Exception("GO set on a disallowed channel")
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hwsim_utils.test_connectivity(wpas, hapd)
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finally:
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wpas.request("P2P_SET disallow_freq ")
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def test_go_neg_with_bss_on_disallowed_chan(dev, apdev):
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"""P2P channel selection: GO negotiation with station interface on a disallowed channel"""
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with HWSimRadio(n_channels=2) as (radio, iface):
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wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
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wpas.interface_add(iface)
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wpas.request("SET p2p_no_group_iface 0")
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if wpas.get_mcc() < 2:
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raise Exception("New radio does not support MCC")
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try:
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hapd = hostapd.add_ap(apdev[0]['ifname'],
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{ "ssid": 'bss-2.4ghz', "channel": '1' })
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# make sure PBC overlap from old test cases is not maintained
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dev[0].flush_scan_cache()
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dev[1].flush_scan_cache()
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wpas.connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2412")
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wpas.request("P2P_SET disallow_freq 2412")
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#wpas as GO
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[i_res, r_res] = go_neg_pbc(i_dev=wpas, i_intent=10, r_dev=dev[1],
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r_intent=1)
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check_grpform_results(i_res, r_res)
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if i_res['role'] != "GO":
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raise Exception("GO not selected according to go_intent")
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if i_res['freq'] == "2412":
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raise Exception("Group formed on a disallowed channel")
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hwsim_utils.test_connectivity(wpas, hapd)
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wpas.remove_group(i_res['ifname'])
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#wpas as client
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[i_res2, r_res2] = go_neg_pbc(i_dev=wpas, i_intent=1, r_dev=dev[1],
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r_intent=10)
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check_grpform_results(i_res2, r_res2)
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if i_res2['role'] != "client":
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raise Exception("GO not selected according to go_intent")
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if i_res2['freq'] == "2412":
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raise Exception("Group formed on a disallowed channel")
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hwsim_utils.test_connectivity(wpas, hapd)
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finally:
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wpas.request("P2P_SET disallow_freq ")
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def test_autogo_force_diff_channel(dev, apdev):
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"""P2P autonomous GO and station interface operate on different channels"""
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with HWSimRadio(n_channels=2) as (radio, iface):
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wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
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wpas.interface_add(iface)
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if wpas.get_mcc() < 2:
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raise Exception("New radio does not support MCC")
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wpas.request("SET p2p_no_group_iface 0")
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hapd = hostapd.add_ap(apdev[0]['ifname'],
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{"ssid" : 'ap-test', "channel" : '1'})
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wpas.connect("ap-test", key_mgmt = "NONE", scan_freq = "2412")
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channels = { 2 : 2417, 5 : 2432, 9 : 2452 }
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for key in channels:
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res_go = autogo(wpas, channels[key])
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hwsim_utils.test_connectivity(wpas, hapd)
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if int(res_go['freq']) == 2412:
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raise Exception("Group operation channel is: 2412 excepted: " + res_go['freq'])
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wpas.remove_group(res_go['ifname'])
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def test_go_neg_forced_freq_diff_than_bss_freq(dev, apdev):
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"""P2P channel selection: GO negotiation with forced freq different than station interface"""
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with HWSimRadio(n_channels=2) as (radio, iface):
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wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
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wpas.interface_add(iface)
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if wpas.get_mcc() < 2:
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raise Exception("New radio does not support MCC")
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# Clear possible PBC session overlap from previous test case
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dev[1].flush_scan_cache()
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wpas.request("SET p2p_no_group_iface 0")
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hapd = hostapd.add_ap(apdev[0]['ifname'],
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{ "country_code": 'US',
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"ssid": 'bss-5ghz', "hw_mode": 'a',
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"channel": '40' })
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wpas.connect("bss-5ghz", key_mgmt="NONE", scan_freq="5200")
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# GO and peer force the same freq, different than BSS freq,
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# wpas to become GO
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[i_res, r_res] = go_neg_pbc(i_dev=dev[1], i_intent=1, i_freq=5180,
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r_dev=wpas, r_intent=14, r_freq=5180)
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check_grpform_results(i_res, r_res)
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if i_res['freq'] != "5180":
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raise Exception("P2P group formed on unexpected frequency: " + i_res['freq'])
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if r_res['role'] != "GO":
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raise Exception("GO not selected according to go_intent")
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hwsim_utils.test_connectivity(wpas, hapd)
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wpas.remove_group(r_res['ifname'])
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# GO and peer force the same freq, different than BSS freq, wpas to
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# become client
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[i_res2, r_res2] = go_neg_pbc(i_dev=dev[1], i_intent=14, i_freq=2422,
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r_dev=wpas, r_intent=1, r_freq=2422)
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check_grpform_results(i_res2, r_res2)
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if i_res2['freq'] != "2422":
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raise Exception("P2P group formed on unexpected frequency: " + i_res2['freq'])
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if r_res2['role'] != "client":
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raise Exception("GO not selected according to go_intent")
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hwsim_utils.test_connectivity(wpas, hapd)
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wpas.request("DISCONNECT")
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hapd.request("DISABLE")
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subprocess.call(['iw', 'reg', 'set', '00'])
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wpas.flush_scan_cache()
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def test_go_pref_chan_bss_on_diff_chan(dev, apdev):
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"""P2P channel selection: Station on different channel than GO configured pref channel"""
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dev[0].request("SET p2p_no_group_iface 0")
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try:
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hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": 'bss-2.4ghz',
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"channel": '1' })
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dev[0].request("SET p2p_pref_chan 81:2")
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dev[0].connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2412")
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res = autogo(dev[0])
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if res['freq'] != "2412":
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raise Exception("GO channel did not follow BSS")
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hwsim_utils.test_connectivity(dev[0], hapd)
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finally:
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dev[0].request("SET p2p_pref_chan ")
|
|
|
|
def test_go_pref_chan_bss_on_disallowed_chan(dev, apdev):
|
|
"""P2P channel selection: Station interface on different channel than GO configured pref channel, and station channel is disallowed"""
|
|
with HWSimRadio(n_channels=2) as (radio, iface):
|
|
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
|
|
wpas.interface_add(iface)
|
|
|
|
if wpas.get_mcc() < 2:
|
|
raise Exception("New radio does not support MCC")
|
|
|
|
wpas.request("SET p2p_no_group_iface 0")
|
|
|
|
try:
|
|
hapd = hostapd.add_ap(apdev[0]['ifname'], { "ssid": 'bss-2.4ghz',
|
|
"channel": '1' })
|
|
wpas.request("P2P_SET disallow_freq 2412")
|
|
wpas.request("SET p2p_pref_chan 81:2")
|
|
wpas.connect("bss-2.4ghz", key_mgmt="NONE", scan_freq="2412")
|
|
res2 = autogo(wpas)
|
|
if res2['freq'] != "2417":
|
|
raise Exception("GO channel did not follow pref_chan configuration")
|
|
hwsim_utils.test_connectivity(wpas, hapd)
|
|
finally:
|
|
wpas.request("P2P_SET disallow_freq ")
|
|
wpas.request("SET p2p_pref_chan ")
|
|
|
|
def test_no_go_freq(dev, apdev):
|
|
"""P2P channel selection: no GO freq"""
|
|
try:
|
|
dev[0].request("SET p2p_no_go_freq 2412")
|
|
# dev[0] as client, channel 1 is ok
|
|
[i_res, r_res] = go_neg_pbc(i_dev=dev[0], i_intent=1,
|
|
r_dev=dev[1], r_intent=14, r_freq=2412)
|
|
check_grpform_results(i_res, r_res)
|
|
if i_res['freq'] != "2412":
|
|
raise Exception("P2P group not formed on forced freq")
|
|
|
|
dev[1].remove_group(r_res['ifname'])
|
|
fail = False
|
|
# dev[0] as GO, channel 1 is not allowed
|
|
try:
|
|
dev[0].request("SET p2p_no_go_freq 2412")
|
|
[i_res2, r_res2] = go_neg_pbc(i_dev=dev[0], i_intent=14,
|
|
r_dev=dev[1], r_intent=1, r_freq=2412)
|
|
check_grpform_results(i_res2, r_res2)
|
|
fail = True
|
|
except:
|
|
pass
|
|
if fail:
|
|
raise Exception("GO set on a disallowed freq")
|
|
finally:
|
|
dev[0].request("SET p2p_no_go_freq ")
|
|
|
|
def test_go_neg_peers_force_diff_freq(dev, apdev):
|
|
"""P2P channel selection when peers for different frequency"""
|
|
try:
|
|
[i_res2, r_res2] = go_neg_pbc(i_dev=dev[0], i_intent=14, i_freq=5180,
|
|
r_dev=dev[1], r_intent=0, r_freq=5200)
|
|
except Exception, e:
|
|
return
|
|
raise Exception("Unexpected group formation success")
|
|
|
|
def test_autogo_random_channel(dev, apdev):
|
|
"""P2P channel selection: GO instantiated on random channel 1, 6, 11"""
|
|
freqs = []
|
|
go_freqs = ["2412", "2437", "2462"]
|
|
for i in range(0, 20):
|
|
result = autogo(dev[0])
|
|
if result['freq'] not in go_freqs:
|
|
raise Exception("Unexpected frequency selected: " + result['freq'])
|
|
if result['freq'] not in freqs:
|
|
freqs.append(result['freq'])
|
|
if len(freqs) == 3:
|
|
break
|
|
dev[0].remove_group(result['ifname'])
|
|
if i == 20:
|
|
raise Exception("GO created 20 times and not all social channels were selected. freqs not selected: " + str(list(set(go_freqs) - set(freqs))))
|
|
|
|
def test_p2p_autogo_pref_chan_disallowed(dev, apdev):
|
|
"""P2P channel selection: GO preferred channels are disallowed"""
|
|
try:
|
|
dev[0].request("SET p2p_pref_chan 81:1,81:3,81:6,81:9,81:11")
|
|
dev[0].request("P2P_SET disallow_freq 2412,2422,2437,2452,2462")
|
|
for i in range(0, 5):
|
|
res = autogo(dev[0])
|
|
if res['freq'] in [ "2412", "2422", "2437", "2452", "2462" ]:
|
|
raise Exception("GO channel is disallowed")
|
|
dev[0].remove_group(res['ifname'])
|
|
finally:
|
|
dev[0].request("P2P_SET disallow_freq ")
|
|
dev[0].request("SET p2p_pref_chan ")
|
|
|
|
def test_p2p_autogo_pref_chan_not_in_regulatory(dev, apdev):
|
|
"""P2P channel selection: GO preferred channel not allowed in the regulatory rules"""
|
|
try:
|
|
set_country("US")
|
|
dev[0].request("SET p2p_pref_chan 124:149")
|
|
res = autogo(dev[0], persistent=True)
|
|
if res['freq'] != "5745":
|
|
raise Exception("Unexpected channel selected: " + res['freq'])
|
|
dev[0].remove_group(res['ifname'])
|
|
|
|
netw = dev[0].list_networks()
|
|
if len(netw) != 1:
|
|
raise Exception("Unexpected number of network blocks: " + str(netw))
|
|
id = netw[0]['id']
|
|
|
|
set_country("DE")
|
|
res = autogo(dev[0], persistent=id)
|
|
if res['freq'] == "5745":
|
|
raise Exception("Unexpected channel selected(2): " + res['freq'])
|
|
dev[0].remove_group(res['ifname'])
|
|
finally:
|
|
dev[0].request("SET p2p_pref_chan ")
|
|
set_country("00")
|
|
|
|
def run_autogo(dev, param):
|
|
if "OK" not in dev.global_request("P2P_GROUP_ADD " + param):
|
|
raise Exception("P2P_GROUP_ADD failed: " + param)
|
|
ev = dev.wait_global_event(["P2P-GROUP-STARTED"], timeout=10)
|
|
if ev is None:
|
|
raise Exception("GO start up timed out")
|
|
res = dev.group_form_result(ev)
|
|
dev.remove_group()
|
|
return res
|
|
|
|
def _test_autogo_ht_vht(dev):
|
|
res = run_autogo(dev[0], "ht40")
|
|
|
|
res = run_autogo(dev[0], "vht")
|
|
|
|
res = run_autogo(dev[0], "freq=2")
|
|
freq = int(res['freq'])
|
|
if freq < 2412 or freq > 2462:
|
|
raise Exception("Unexpected freq=2 channel: " + str(freq))
|
|
|
|
res = run_autogo(dev[0], "freq=5")
|
|
freq = int(res['freq'])
|
|
if freq < 5000 or freq >= 6000:
|
|
raise Exception("Unexpected freq=5 channel: " + str(freq))
|
|
|
|
res = run_autogo(dev[0], "freq=5 ht40 vht")
|
|
print res
|
|
freq = int(res['freq'])
|
|
if freq < 5000 or freq >= 6000:
|
|
raise Exception("Unexpected freq=5 ht40 vht channel: " + str(freq))
|
|
|
|
def test_autogo_ht_vht(dev):
|
|
"""P2P autonomous GO with HT/VHT parameters"""
|
|
try:
|
|
set_country("US")
|
|
_test_autogo_ht_vht(dev)
|
|
finally:
|
|
set_country("00")
|