mirror of
https://github.com/vanhoefm/fragattacks.git
synced 2024-12-12 17:08:20 -05:00
538 lines
20 KiB
Python
538 lines
20 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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from remotehost import remote_compatible
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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, require_under_vm, get_phy
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from test_ap_acs import force_prev_ap_on_24g
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@remote_compatible
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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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hapd = hostapd.add_ap(apdev[0], 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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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(apdev, 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 = hostapd.bssid_inc(apdev, 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(apdev[0], ifname1, 'bss-1.conf')
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multi_check(apdev[0], dev, [True, False, False])
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hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
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multi_check(apdev[0], dev, [True, True, False])
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hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
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multi_check(apdev[0], 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(apdev[0], ifname3)
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multi_check(apdev[0], dev, [True, True, False])
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hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
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multi_check(apdev[0], 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(apdev[0], ifname2)
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multi_check(apdev[0], dev, [True, False, True])
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hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
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multi_check(apdev[0], 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(apdev[0], ifname1)
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multi_check(apdev[0], dev, [False, False, False])
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hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
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hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
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hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
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multi_check(apdev[0], dev, [True, True, True])
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logger.info("Remove two BSSes and re-add them")
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hostapd.remove_bss(apdev[0], ifname2)
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multi_check(apdev[0], dev, [True, False, True])
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hostapd.remove_bss(apdev[0], ifname3)
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multi_check(apdev[0], dev, [True, False, False])
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hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
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multi_check(apdev[0], dev, [True, True, False])
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hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
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multi_check(apdev[0], 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(apdev[0], ifname3)
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multi_check(apdev[0], dev, [True, True, False])
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hostapd.remove_bss(apdev[0], ifname2)
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multi_check(apdev[0], dev, [True, False, False])
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hostapd.remove_bss(apdev[0], ifname1)
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multi_check(apdev[0], dev, [False, False, False])
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hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
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multi_check(apdev[0], dev, [True, False, False])
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hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
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multi_check(apdev[0], dev, [True, True, False])
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hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
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multi_check(apdev[0], 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(apdev[0], ifname3, 'bss-3.conf', ignore_error=True)
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multi_check(apdev[0], 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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confname1 = hostapd.cfg_file(apdev[0], "bss-ht40-1.conf")
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confname2 = hostapd.cfg_file(apdev[0], "bss-ht40-2.conf")
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hapd_global = hostapd.HostapdGlobal(apdev)
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hapd_global.send_file(confname1, confname1)
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hapd_global.send_file(confname2, confname2)
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hostapd.add_bss(apdev[0], ifname1, confname1)
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hostapd.add_bss(apdev[0], ifname2, confname2)
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multi_check(apdev[0], dev, [True, True], scan_opt=False)
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hostapd.remove_bss(apdev[0], ifname2)
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hostapd.remove_bss(apdev[0], ifname1)
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hostapd.add_bss(apdev[0], ifname1, confname1)
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hostapd.add_bss(apdev[0], ifname2, confname2)
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hostapd.remove_bss(apdev[0], ifname2)
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multi_check(apdev[0], dev, [True, False], scan_opt=False)
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hostapd.remove_bss(apdev[0], ifname1)
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hostapd.add_bss(apdev[0], ifname1, confname1)
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hostapd.add_bss(apdev[0], ifname2, confname2)
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hostapd.remove_bss(apdev[0], ifname1)
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multi_check(apdev[0], 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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hapd = hostapd.add_iface(apdev[0], 'multi-bss.conf')
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hapd.enable()
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multi_check(apdev[0], dev, [True, True, True])
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hostapd.remove_bss(apdev[0], ifname2)
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multi_check(apdev[0], dev, [True, False, True])
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hostapd.remove_bss(apdev[0], ifname3)
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multi_check(apdev[0], dev, [True, False, False])
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hostapd.remove_bss(apdev[0], ifname1)
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multi_check(apdev[0], dev, [False, False, False])
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hapd = hostapd.add_iface(apdev[0], 'multi-bss.conf')
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hapd.enable()
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hostapd.remove_bss(apdev[0], ifname1)
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multi_check(apdev[0], dev, [False, False, False])
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def invalid_ap(ap):
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logger.info("Trying to start AP " + ap['ifname'] + " with invalid configuration")
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hapd = hostapd.add_ap(ap, {}, no_enable=True)
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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 as 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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@remote_compatible
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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 = invalid_ap(apdev[0])
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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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@remote_compatible
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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 = invalid_ap(apdev[0])
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logger.info("Remove interface with failed configuration")
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hostapd.remove_bss(apdev[0])
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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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hostapd.add_ap(apdev[0], params)
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hostapd.remove_bss(apdev[0])
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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 = hostapd.add_ap(apdev[0], {}, no_enable=True)
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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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hostapd.remove_bss(apdev[0])
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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 = hostapd.add_ap(apdev[0], {}, no_enable=True)
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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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hostapd.remove_bss(apdev[0], ifname2)
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@remote_compatible
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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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hostapd.add_ap(apdev[0], params)
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hostapd.remove_bss(apdev[0])
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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 = hostapd.add_ap(apdev[0], {}, no_enable=True)
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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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hostapd.remove_bss(apdev[0])
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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 = hostapd.add_ap(apdev[0], {}, no_enable=True)
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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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hostapd.remove_bss(apdev[0], ifname2)
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@remote_compatible
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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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hapd = hostapd.add_ap(apdev[0], {}, no_enable=True)
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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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hapd = hostapd.add_bss(apdev[0], apdev[0]['ifname'], 'bss-1.conf')
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hostapd.add_bss(apdev[0], apdev[0]['ifname'] + '-2', 'bss-2.conf')
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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(apdev[0])
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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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hostapd.add_bss(apdev[0], ifname, 'bss-1.conf')
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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(apdev[0], 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)
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hostapd.remove_bss(apdev[0], ifname2)
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def test_ap_bss_add_reuse_existing(dev, apdev):
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"""Dynamic BSS add operation reusing existing interface"""
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ifname1 = apdev[0]['ifname']
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ifname2 = apdev[0]['ifname'] + '-2'
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hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
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subprocess.check_call(["iw", "dev", ifname1, "interface", "add", ifname2,
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"type", "__ap"])
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hostapd.add_bss(apdev[0], ifname2, 'bss-2.conf')
|
|
hostapd.remove_bss(apdev[0], 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], {"ssid": "open"})
|
|
|
|
ifname1 = apdev[0]['ifname']
|
|
ifname2 = apdev[0]['ifname'] + '-2'
|
|
|
|
confname1 = hostapd.cfg_file(apdev[0], "bss-1.conf")
|
|
confname2 = hostapd.cfg_file(apdev[0], "bss-2.conf")
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', confname1, 1, 'hostapd_add_iface')
|
|
for i in range(1, 3):
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', confname1,
|
|
i, 'hostapd_interface_init_bss')
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', confname1,
|
|
1, 'ieee802_11_build_ap_params')
|
|
|
|
hostapd.add_bss(apdev[0], ifname1, confname1)
|
|
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', confname2,
|
|
1, 'hostapd_interface_init_bss')
|
|
hapd_bss_out_of_mem(hapd2, 'phy3', confname2,
|
|
1, 'ieee802_11_build_ap_params')
|
|
|
|
hostapd.add_bss(apdev[0], ifname2, confname2)
|
|
hostapd.remove_bss(apdev[0], ifname2)
|
|
hostapd.remove_bss(apdev[0], ifname1)
|
|
|
|
def test_ap_multi_bss(dev, apdev):
|
|
"""Multiple BSSes with hostapd"""
|
|
ifname1 = apdev[0]['ifname']
|
|
ifname2 = apdev[0]['ifname'] + '-2'
|
|
hapd1 = hostapd.add_bss(apdev[0], ifname1, 'bss-1.conf')
|
|
hapd2 = hostapd.add_bss(apdev[0], 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")
|
|
|
|
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")
|
|
|
|
@remote_compatible
|
|
def test_ap_add_with_driver(dev, apdev):
|
|
"""Add hostapd interface with driver specified"""
|
|
ifname = apdev[0]['ifname']
|
|
try:
|
|
hostname = apdev[0]['hostname']
|
|
except:
|
|
hostname = None
|
|
hapd_global = hostapd.HostapdGlobal(apdev[0])
|
|
hapd_global.add(ifname, driver="nl80211")
|
|
port = hapd_global.get_ctrl_iface_port(ifname)
|
|
hapd = hostapd.Hostapd(ifname, hostname, port)
|
|
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()
|
|
|
|
def test_ap_duplicate_bssid(dev, apdev):
|
|
"""Duplicate BSSID"""
|
|
params = {"ssid": "test"}
|
|
hapd = hostapd.add_ap(apdev[0], params, no_enable=True)
|
|
hapd.enable()
|
|
ifname2 = apdev[0]['ifname'] + '-2'
|
|
ifname3 = apdev[0]['ifname'] + '-3'
|
|
# "BSS 'wlan3-2' may not have BSSID set to the MAC address of the radio"
|
|
try:
|
|
hostapd.add_bss(apdev[0], ifname2, 'bss-2-dup.conf')
|
|
raise Exception("BSS add succeeded unexpectedly")
|
|
except Exception as e:
|
|
if "Could not add hostapd BSS" in str(e):
|
|
pass
|
|
else:
|
|
raise
|
|
|
|
hostapd.add_bss(apdev[0], ifname3, 'bss-3.conf')
|
|
|
|
dev[0].connect("test", key_mgmt="NONE", scan_freq="2412")
|
|
dev[0].request("DISCONNECT")
|
|
dev[0].wait_disconnected()
|
|
|
|
hapd.set("bssid", "02:00:00:00:03:02")
|
|
hapd.disable()
|
|
# "Duplicate BSSID 02:00:00:00:03:02 on interface 'wlan3-3' and 'wlan3'."
|
|
if "FAIL" not in hapd.request("ENABLE"):
|
|
raise Exception("ENABLE with duplicate BSSID succeeded unexpectedly")
|
|
|
|
def test_ap_bss_config_file(dev, apdev, params):
|
|
"""hostapd BSS config file"""
|
|
pidfile = os.path.join(params['logdir'], "ap_bss_config_file-hostapd.pid")
|
|
logfile = os.path.join(params['logdir'], "ap_bss_config_file-hostapd-log")
|
|
prg = os.path.join(params['logdir'], 'alt-hostapd/hostapd/hostapd')
|
|
if not os.path.exists(prg):
|
|
prg = '../../hostapd/hostapd'
|
|
phy = get_phy(apdev[0])
|
|
confname1 = hostapd.cfg_file(apdev[0], "bss-1.conf")
|
|
confname2 = hostapd.cfg_file(apdev[0], "bss-2.conf")
|
|
confname3 = hostapd.cfg_file(apdev[0], "bss-3.conf")
|
|
|
|
cmd = [prg, '-B', '-dddt', '-P', pidfile, '-f', logfile, '-S', '-T',
|
|
'-b', phy + ':' + confname1, '-b', phy + ':' + confname2,
|
|
'-b', phy + ':' + confname3]
|
|
res = subprocess.check_call(cmd)
|
|
if res != 0:
|
|
raise Exception("Could not start hostapd: %s" % str(res))
|
|
multi_check(apdev[0], dev, [True, True, True])
|
|
for i in range(0, 3):
|
|
dev[i].request("DISCONNECT")
|
|
|
|
hapd = hostapd.Hostapd(apdev[0]['ifname'])
|
|
hapd.ping()
|
|
if "OK" not in hapd.request("TERMINATE"):
|
|
raise Exception("Failed to terminate hostapd process")
|
|
ev = hapd.wait_event(["CTRL-EVENT-TERMINATING"], timeout=15)
|
|
if ev is None:
|
|
raise Exception("CTRL-EVENT-TERMINATING not seen")
|
|
for i in range(30):
|
|
time.sleep(0.1)
|
|
if not os.path.exists(pidfile):
|
|
break
|
|
if os.path.exists(pidfile):
|
|
raise Exception("PID file exits after process termination")
|