f98b0e5806
It was possible for a cached scan entry in cfg80211 from an earlier test case to show up while verifying that the disabled AP does not show up in scan results. This could result in invalid test failures, e.g., when running test cases "ap_require_ht ap_multi_bss_config" multiple times (depends a bit on timing). Make this less likely to occur by explicitly clearing the scan cache and by stopping wlan1 from trying to associate before stopping ap_required_ht* test cases. Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
490 lines
17 KiB
Python
490 lines
17 KiB
Python
# Test cases for dynamic BSS changes with hostapd
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# Copyright (c) 2013, Qualcomm Atheros, Inc.
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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 time
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import subprocess
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import logging
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logger = logging.getLogger()
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import os
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import hwsim_utils
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import hostapd
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from utils import alloc_fail
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from test_ap_acs import force_prev_ap_on_24g
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def test_ap_change_ssid(dev, apdev):
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"""Dynamic SSID change with hostapd and WPA2-PSK"""
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params = hostapd.wpa2_params(ssid="test-wpa2-psk-start",
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passphrase="12345678")
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hostapd.add_ap(apdev[0]['ifname'], params)
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id = dev[0].connect("test-wpa2-psk-start", psk="12345678",
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scan_freq="2412")
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dev[0].request("DISCONNECT")
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logger.info("Change SSID dynamically")
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hapd = hostapd.Hostapd(apdev[0]['ifname'])
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res = hapd.request("SET ssid test-wpa2-psk-new")
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if "OK" not in res:
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raise Exception("SET command failed")
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res = hapd.request("RELOAD")
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if "OK" not in res:
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raise Exception("RELOAD command failed")
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dev[0].set_network_quoted(id, "ssid", "test-wpa2-psk-new")
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dev[0].connect_network(id)
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def multi_check(dev, check, scan_opt=True):
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id = []
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num_bss = len(check)
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for i in range(0, num_bss):
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dev[i].request("BSS_FLUSH 0")
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dev[i].dump_monitor()
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for i in range(0, num_bss):
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if check[i]:
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continue
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id.append(dev[i].connect("bss-" + str(i + 1), key_mgmt="NONE",
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scan_freq="2412", wait_connect=False))
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for i in range(num_bss):
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if not check[i]:
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continue
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bssid = '02:00:00:00:03:0' + str(i)
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if scan_opt:
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dev[i].scan_for_bss(bssid, freq=2412)
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id.append(dev[i].connect("bss-" + str(i + 1), key_mgmt="NONE",
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scan_freq="2412", wait_connect=True))
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first = True
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for i in range(num_bss):
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if not check[i]:
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timeout=0.2 if first else 0.01
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first = False
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ev = dev[i].wait_event(["CTRL-EVENT-CONNECTED"], timeout=timeout)
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if ev:
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raise Exception("Unexpected connection")
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for i in range(0, num_bss):
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dev[i].remove_network(id[i])
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for i in range(num_bss):
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if check[i]:
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dev[i].wait_disconnected(timeout=5)
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res = ''
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for i in range(0, num_bss):
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res = res + dev[i].request("BSS RANGE=ALL MASK=0x2")
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for i in range(0, num_bss):
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if not check[i]:
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bssid = '02:00:00:00:03:0' + str(i)
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if bssid in res:
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raise Exception("Unexpected BSS" + str(i) + " in scan results")
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def test_ap_bss_add_remove(dev, apdev):
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"""Dynamic BSS add/remove operations with hostapd"""
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try:
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_test_ap_bss_add_remove(dev, apdev)
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finally:
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for i in range(3):
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dev[i].request("SCAN_INTERVAL 5")
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def _test_ap_bss_add_remove(dev, apdev):
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for i in range(3):
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dev[i].flush_scan_cache()
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dev[i].request("SCAN_INTERVAL 1")
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ifname1 = apdev[0]['ifname']
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ifname2 = apdev[0]['ifname'] + '-2'
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ifname3 = apdev[0]['ifname'] + '-3'
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logger.info("Set up three BSSes one by one")
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hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
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multi_check(dev, [ True, False, False ])
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hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
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multi_check(dev, [ True, True, False ])
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hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
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multi_check(dev, [ True, True, True ])
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logger.info("Remove the last BSS and re-add it")
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hostapd.remove_bss(ifname3)
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multi_check(dev, [ True, True, False ])
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hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
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multi_check(dev, [ True, True, True ])
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logger.info("Remove the middle BSS and re-add it")
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hostapd.remove_bss(ifname2)
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multi_check(dev, [ True, False, True ])
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hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
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multi_check(dev, [ True, True, True ])
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logger.info("Remove the first BSS and re-add it and other BSSs")
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hostapd.remove_bss(ifname1)
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multi_check(dev, [ False, False, False ])
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hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
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hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
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hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
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multi_check(dev, [ True, True, True ])
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logger.info("Remove two BSSes and re-add them")
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hostapd.remove_bss(ifname2)
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multi_check(dev, [ True, False, True ])
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hostapd.remove_bss(ifname3)
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multi_check(dev, [ True, False, False ])
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hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
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multi_check(dev, [ True, True, False ])
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hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
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multi_check(dev, [ True, True, True ])
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logger.info("Remove three BSSes in and re-add them")
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hostapd.remove_bss(ifname3)
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multi_check(dev, [ True, True, False ])
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hostapd.remove_bss(ifname2)
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multi_check(dev, [ True, False, False ])
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hostapd.remove_bss(ifname1)
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multi_check(dev, [ False, False, False ])
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hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
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multi_check(dev, [ True, False, False ])
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hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
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multi_check(dev, [ True, True, False ])
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hostapd.add_bss('phy3', ifname3, 'bss-3.conf')
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multi_check(dev, [ True, True, True ])
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logger.info("Test error handling if a duplicate ifname is tried")
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hostapd.add_bss('phy3', ifname3, 'bss-3.conf', ignore_error=True)
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multi_check(dev, [ True, True, True ])
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def test_ap_bss_add_remove_during_ht_scan(dev, apdev):
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"""Dynamic BSS add during HT40 co-ex scan"""
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for i in range(3):
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dev[i].flush_scan_cache()
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ifname1 = apdev[0]['ifname']
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ifname2 = apdev[0]['ifname'] + '-2'
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hostapd.add_bss('phy3', ifname1, 'bss-ht40-1.conf')
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hostapd.add_bss('phy3', ifname2, 'bss-ht40-2.conf')
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multi_check(dev, [ True, True ], scan_opt=False)
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hostapd.remove_bss(ifname2)
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hostapd.remove_bss(ifname1)
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hostapd.add_bss('phy3', ifname1, 'bss-ht40-1.conf')
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hostapd.add_bss('phy3', ifname2, 'bss-ht40-2.conf')
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hostapd.remove_bss(ifname2)
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multi_check(dev, [ True, False ], scan_opt=False)
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hostapd.remove_bss(ifname1)
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hostapd.add_bss('phy3', ifname1, 'bss-ht40-1.conf')
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hostapd.add_bss('phy3', ifname2, 'bss-ht40-2.conf')
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hostapd.remove_bss(ifname1)
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multi_check(dev, [ False, False ])
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def test_ap_multi_bss_config(dev, apdev):
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"""hostapd start with a multi-BSS configuration file"""
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for i in range(3):
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dev[i].flush_scan_cache()
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ifname1 = apdev[0]['ifname']
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ifname2 = apdev[0]['ifname'] + '-2'
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ifname3 = apdev[0]['ifname'] + '-3'
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logger.info("Set up three BSSes with one configuration file")
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hostapd.add_iface(ifname1, 'multi-bss.conf')
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hapd = hostapd.Hostapd(ifname1)
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hapd.enable()
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multi_check(dev, [ True, True, True ])
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hostapd.remove_bss(ifname2)
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multi_check(dev, [ True, False, True ])
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hostapd.remove_bss(ifname3)
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multi_check(dev, [ True, False, False ])
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hostapd.remove_bss(ifname1)
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multi_check(dev, [ False, False, False ])
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hostapd.add_iface(ifname1, 'multi-bss.conf')
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hapd = hostapd.Hostapd(ifname1)
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hapd.enable()
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hostapd.remove_bss(ifname1)
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multi_check(dev, [ False, False, False ])
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def invalid_ap(hapd_global, ifname):
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logger.info("Trying to start AP " + ifname + " with invalid configuration")
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hapd_global.remove(ifname)
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hapd_global.add(ifname)
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hapd = hostapd.Hostapd(ifname)
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if not hapd.ping():
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raise Exception("Could not ping hostapd")
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hapd.set_defaults()
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hapd.set("ssid", "invalid-config")
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hapd.set("channel", "12345")
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try:
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hapd.enable()
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started = True
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except Exception, e:
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started = False
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if started:
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raise Exception("ENABLE command succeeded unexpectedly")
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return hapd
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def test_ap_invalid_config(dev, apdev):
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"""Try to start AP with invalid configuration and fix configuration"""
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hapd_global = hostapd.HostapdGlobal()
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ifname = apdev[0]['ifname']
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hapd = invalid_ap(hapd_global, ifname)
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logger.info("Fix configuration and start AP again")
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hapd.set("channel", "1")
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hapd.enable()
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dev[0].connect("invalid-config", key_mgmt="NONE", scan_freq="2412")
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def test_ap_invalid_config2(dev, apdev):
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"""Try to start AP with invalid configuration and remove interface"""
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hapd_global = hostapd.HostapdGlobal()
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ifname = apdev[0]['ifname']
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hapd = invalid_ap(hapd_global, ifname)
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logger.info("Remove interface with failed configuration")
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hapd_global.remove(ifname)
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def test_ap_remove_during_acs(dev, apdev):
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"""Remove interface during ACS"""
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force_prev_ap_on_24g(apdev[0])
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params = hostapd.wpa2_params(ssid="test-acs-remove", passphrase="12345678")
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params['channel'] = '0'
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ifname = apdev[0]['ifname']
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hapd = hostapd.HostapdGlobal()
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hostapd.add_ap(ifname, params)
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hapd.remove(ifname)
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def test_ap_remove_during_acs2(dev, apdev):
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"""Remove BSS during ACS in multi-BSS configuration"""
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force_prev_ap_on_24g(apdev[0])
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ifname = apdev[0]['ifname']
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ifname2 = ifname + "-2"
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hapd_global = hostapd.HostapdGlobal()
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hapd_global.add(ifname)
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hapd = hostapd.Hostapd(ifname)
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hapd.set_defaults()
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hapd.set("ssid", "test-acs-remove")
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hapd.set("channel", "0")
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hapd.set("bss", ifname2)
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hapd.set("ssid", "test-acs-remove2")
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hapd.enable()
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hapd_global.remove(ifname)
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def test_ap_remove_during_acs3(dev, apdev):
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"""Remove second BSS during ACS in multi-BSS configuration"""
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force_prev_ap_on_24g(apdev[0])
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ifname = apdev[0]['ifname']
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ifname2 = ifname + "-2"
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hapd_global = hostapd.HostapdGlobal()
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hapd_global.add(ifname)
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hapd = hostapd.Hostapd(ifname)
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hapd.set_defaults()
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hapd.set("ssid", "test-acs-remove")
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hapd.set("channel", "0")
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hapd.set("bss", ifname2)
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hapd.set("ssid", "test-acs-remove2")
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hapd.enable()
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hapd_global.remove(ifname2)
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def test_ap_remove_during_ht_coex_scan(dev, apdev):
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"""Remove interface during HT co-ex scan"""
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params = hostapd.wpa2_params(ssid="test-ht-remove", passphrase="12345678")
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params['channel'] = '1'
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params['ht_capab'] = "[HT40+]"
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ifname = apdev[0]['ifname']
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hapd = hostapd.HostapdGlobal()
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hostapd.add_ap(ifname, params)
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hapd.remove(ifname)
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def test_ap_remove_during_ht_coex_scan2(dev, apdev):
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"""Remove BSS during HT co-ex scan in multi-BSS configuration"""
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ifname = apdev[0]['ifname']
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ifname2 = ifname + "-2"
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hapd_global = hostapd.HostapdGlobal()
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hapd_global.add(ifname)
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hapd = hostapd.Hostapd(ifname)
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hapd.set_defaults()
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hapd.set("ssid", "test-ht-remove")
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hapd.set("channel", "1")
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hapd.set("ht_capab", "[HT40+]")
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hapd.set("bss", ifname2)
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hapd.set("ssid", "test-ht-remove2")
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hapd.enable()
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hapd_global.remove(ifname)
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def test_ap_remove_during_ht_coex_scan3(dev, apdev):
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"""Remove second BSS during HT co-ex scan in multi-BSS configuration"""
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ifname = apdev[0]['ifname']
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ifname2 = ifname + "-2"
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hapd_global = hostapd.HostapdGlobal()
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hapd_global.add(ifname)
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hapd = hostapd.Hostapd(ifname)
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hapd.set_defaults()
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hapd.set("ssid", "test-ht-remove")
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hapd.set("channel", "1")
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hapd.set("ht_capab", "[HT40+]")
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hapd.set("bss", ifname2)
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hapd.set("ssid", "test-ht-remove2")
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hapd.enable()
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hapd_global.remove(ifname2)
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def test_ap_enable_disable_reenable(dev, apdev):
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"""Enable, disable, re-enable AP"""
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ifname = apdev[0]['ifname']
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hapd_global = hostapd.HostapdGlobal()
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hapd_global.add(ifname)
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hapd = hostapd.Hostapd(ifname)
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hapd.set_defaults()
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hapd.set("ssid", "dynamic")
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hapd.enable()
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ev = hapd.wait_event(["AP-ENABLED"], timeout=30)
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if ev is None:
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raise Exception("AP startup timed out")
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dev[0].connect("dynamic", key_mgmt="NONE", scan_freq="2412")
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hapd.disable()
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ev = hapd.wait_event(["AP-DISABLED"], timeout=30)
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if ev is None:
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raise Exception("AP disabling timed out")
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dev[0].wait_disconnected(timeout=10)
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hapd.enable()
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ev = hapd.wait_event(["AP-ENABLED"], timeout=30)
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if ev is None:
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raise Exception("AP startup timed out")
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dev[1].connect("dynamic", key_mgmt="NONE", scan_freq="2412")
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dev[0].wait_connected(timeout=10)
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def test_ap_double_disable(dev, apdev):
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"""Double DISABLE regression test"""
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hostapd.add_bss('phy3', apdev[0]['ifname'], 'bss-1.conf')
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hostapd.add_bss('phy3', apdev[0]['ifname'] + '-2', 'bss-2.conf')
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hapd = hostapd.Hostapd(apdev[0]['ifname'])
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hapd.disable()
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if "FAIL" not in hapd.request("DISABLE"):
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raise Exception("Second DISABLE accepted unexpectedly")
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hapd.enable()
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hapd.disable()
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if "FAIL" not in hapd.request("DISABLE"):
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raise Exception("Second DISABLE accepted unexpectedly")
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def test_ap_bss_add_many(dev, apdev):
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"""Large number of BSS add operations with hostapd"""
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try:
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_test_ap_bss_add_many(dev, apdev)
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finally:
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dev[0].request("SCAN_INTERVAL 5")
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ifname = apdev[0]['ifname']
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hapd = hostapd.HostapdGlobal()
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hapd.flush()
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for i in range(16):
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ifname2 = ifname + '-' + str(i)
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hapd.remove(ifname2)
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try:
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os.remove('/tmp/hwsim-bss.conf')
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except:
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pass
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def _test_ap_bss_add_many(dev, apdev):
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ifname = apdev[0]['ifname']
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phy = 'phy3'
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hostapd.add_bss(phy, ifname, 'bss-1.conf')
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hapd = hostapd.HostapdGlobal()
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fname = '/tmp/hwsim-bss.conf'
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for i in range(16):
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ifname2 = ifname + '-' + str(i)
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with open(fname, 'w') as f:
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f.write("driver=nl80211\n")
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f.write("hw_mode=g\n")
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f.write("channel=1\n")
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f.write("ieee80211n=1\n")
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f.write("interface=%s\n" % ifname2)
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f.write("bssid=02:00:00:00:03:%02x\n" % (i + 1))
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f.write("ctrl_interface=/var/run/hostapd\n")
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f.write("ssid=test-%d\n" % i)
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hostapd.add_bss(phy, ifname2, fname)
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os.remove(fname)
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dev[0].request("SCAN_INTERVAL 1")
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dev[0].connect("bss-1", key_mgmt="NONE", scan_freq="2412")
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dev[0].request("DISCONNECT")
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dev[0].wait_disconnected(timeout=5)
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for i in range(16):
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dev[0].connect("test-%d" % i, key_mgmt="NONE", scan_freq="2412")
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dev[0].request("DISCONNECT")
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dev[0].wait_disconnected(timeout=5)
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ifname2 = ifname + '-' + str(i)
|
|
hapd.remove(ifname2)
|
|
|
|
def test_ap_bss_add_reuse_existing(dev, apdev):
|
|
"""Dynamic BSS add operation reusing existing interface"""
|
|
ifname1 = apdev[0]['ifname']
|
|
ifname2 = apdev[0]['ifname'] + '-2'
|
|
hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
|
|
subprocess.check_call(["iw", "dev", ifname1, "interface", "add", ifname2,
|
|
"type", "__ap"])
|
|
hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
|
|
hostapd.remove_bss(ifname2)
|
|
subprocess.check_call(["iw", "dev", ifname2, "del"])
|
|
|
|
def hapd_bss_out_of_mem(hapd, phy, confname, count, func):
|
|
with alloc_fail(hapd, count, func):
|
|
hapd_global = hostapd.HostapdGlobal()
|
|
res = hapd_global.ctrl.request("ADD bss_config=" + phy + ":" + confname)
|
|
if "OK" in res:
|
|
raise Exception("add_bss succeeded")
|
|
|
|
def test_ap_bss_add_out_of_memory(dev, apdev):
|
|
"""Running out of memory while adding a BSS"""
|
|
hapd2 = hostapd.add_ap(apdev[1]['ifname'], { "ssid": "open" })
|
|
|
|
ifname1 = apdev[0]['ifname']
|
|
ifname2 = apdev[0]['ifname'] + '-2'
|
|
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', 'bss-1.conf', 1, 'hostapd_add_iface')
|
|
for i in range(1, 3):
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', 'bss-1.conf',
|
|
i, 'hostapd_interface_init_bss')
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', 'bss-1.conf',
|
|
1, 'ieee802_11_build_ap_params')
|
|
|
|
hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
|
|
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', 'bss-2.conf',
|
|
1, 'hostapd_interface_init_bss')
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', 'bss-2.conf',
|
|
1, 'ieee802_11_build_ap_params')
|
|
|
|
hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
|
|
hostapd.remove_bss(ifname2)
|
|
hostapd.remove_bss(ifname1)
|
|
|
|
def test_ap_multi_bss(dev, apdev):
|
|
"""Multiple BSSes with hostapd"""
|
|
ifname1 = apdev[0]['ifname']
|
|
ifname2 = apdev[0]['ifname'] + '-2'
|
|
hostapd.add_bss('phy3', ifname1, 'bss-1.conf')
|
|
hostapd.add_bss('phy3', ifname2, 'bss-2.conf')
|
|
dev[0].connect("bss-1", key_mgmt="NONE", scan_freq="2412")
|
|
dev[1].connect("bss-2", key_mgmt="NONE", scan_freq="2412")
|
|
|
|
hapd1 = hostapd.Hostapd(ifname1)
|
|
hapd2 = hostapd.Hostapd(ifname2)
|
|
|
|
hwsim_utils.test_connectivity(dev[0], hapd1)
|
|
hwsim_utils.test_connectivity(dev[1], hapd2)
|
|
|
|
sta0 = hapd1.get_sta(dev[0].own_addr())
|
|
sta1 = hapd2.get_sta(dev[1].own_addr())
|
|
if 'rx_packets' not in sta0 or int(sta0['rx_packets']) < 1:
|
|
raise Exception("sta0 did not report receiving packets")
|
|
if 'rx_packets' not in sta1 or int(sta1['rx_packets']) < 1:
|
|
raise Exception("sta1 did not report receiving packets")
|
|
|
|
def test_ap_add_with_driver(dev, apdev):
|
|
"""Add hostapd interface with driver specified"""
|
|
ifname = apdev[0]['ifname']
|
|
hapd_global = hostapd.HostapdGlobal()
|
|
hapd_global.add(ifname, driver="nl80211")
|
|
hapd = hostapd.Hostapd(ifname)
|
|
hapd.set_defaults()
|
|
hapd.set("ssid", "dynamic")
|
|
hapd.enable()
|
|
ev = hapd.wait_event(["AP-ENABLED"], timeout=30)
|
|
if ev is None:
|
|
raise Exception("AP startup timed out")
|
|
dev[0].connect("dynamic", key_mgmt="NONE", scan_freq="2412")
|
|
dev[0].request("DISCONNECT")
|
|
dev[0].wait_disconnected()
|
|
hapd.disable()
|