| # Test cases for automatic channel selection with hostapd |
| # Copyright (c) 2013-2014, Jouni Malinen <j@w1.fi> |
| # |
| # This software may be distributed under the terms of the BSD license. |
| # See README for more details. |
| |
| import logging |
| logger = logging.getLogger() |
| import subprocess |
| import time |
| |
| import hostapd |
| from test_ap_ht import clear_scan_cache |
| |
| def force_prev_ap_on_24g(ap): |
| # For now, make sure the last operating channel was on 2.4 GHz band to get |
| # sufficient survey data from mac80211_hwsim. |
| hostapd.add_ap(ap['ifname'], { "ssid": "open" }) |
| time.sleep(0.1) |
| hapd_global = hostapd.HostapdGlobal() |
| hapd_global.remove(ap['ifname']) |
| |
| def force_prev_ap_on_5g(ap): |
| # For now, make sure the last operating channel was on 5 GHz band to get |
| # sufficient survey data from mac80211_hwsim. |
| hostapd.add_ap(ap['ifname'], { "ssid": "open", "hw_mode": "a", |
| "channel": "36", "country_code": "US" }) |
| time.sleep(0.1) |
| hapd_global = hostapd.HostapdGlobal() |
| hapd_global.remove(ap['ifname']) |
| |
| def wait_acs(hapd): |
| ev = hapd.wait_event(["ACS-STARTED", "ACS-COMPLETED", "ACS-FAILED", |
| "AP-ENABLED", "AP-DISABLED"], timeout=5) |
| if not ev: |
| raise Exception("ACS start timed out") |
| if "ACS-STARTED" not in ev: |
| raise Exception("Unexpected ACS event: " + ev) |
| |
| state = hapd.get_status_field("state") |
| if state != "ACS": |
| raise Exception("Unexpected interface state") |
| |
| ev = hapd.wait_event(["ACS-COMPLETED", "ACS-FAILED", "AP-ENABLED", |
| "AP-DISABLED"], timeout=20) |
| if not ev: |
| raise Exception("ACS timed out") |
| if "ACS-COMPLETED" not in ev: |
| raise Exception("Unexpected ACS event: " + ev) |
| |
| ev = hapd.wait_event(["AP-ENABLED", "AP-DISABLED"], timeout=5) |
| if not ev: |
| raise Exception("AP setup timed out") |
| if "AP-ENABLED" not in ev: |
| raise Exception("Unexpected ACS event: " + ev) |
| |
| state = hapd.get_status_field("state") |
| if state != "ENABLED": |
| raise Exception("Unexpected interface state") |
| |
| def test_ap_acs(dev, apdev): |
| """Automatic channel selection""" |
| force_prev_ap_on_24g(apdev[0]) |
| params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678") |
| params['channel'] = '0' |
| hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False) |
| wait_acs(hapd) |
| |
| freq = hapd.get_status_field("freq") |
| if int(freq) < 2400: |
| raise Exception("Unexpected frequency") |
| |
| dev[0].connect("test-acs", psk="12345678", scan_freq=freq) |
| |
| def test_ap_multi_bss_acs(dev, apdev): |
| """hostapd start with a multi-BSS configuration file using ACS""" |
| ifname = apdev[0]['ifname'] |
| force_prev_ap_on_24g(apdev[0]) |
| |
| # start the actual test |
| hostapd.add_iface(ifname, 'multi-bss-acs.conf') |
| hapd = hostapd.Hostapd(ifname) |
| hapd.enable() |
| wait_acs(hapd) |
| |
| freq = hapd.get_status_field("freq") |
| if int(freq) < 2400: |
| raise Exception("Unexpected frequency") |
| |
| dev[0].connect("bss-1", key_mgmt="NONE", scan_freq=freq) |
| dev[1].connect("bss-2", psk="12345678", scan_freq=freq) |
| dev[2].connect("bss-3", psk="qwertyuiop", scan_freq=freq) |
| |
| def test_ap_acs_40mhz(dev, apdev): |
| """Automatic channel selection for 40 MHz channel""" |
| clear_scan_cache(apdev[0]['ifname']) |
| force_prev_ap_on_24g(apdev[0]) |
| params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678") |
| params['channel'] = '0' |
| params['ht_capab'] = '[HT40+]' |
| hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False) |
| wait_acs(hapd) |
| |
| freq = hapd.get_status_field("freq") |
| if int(freq) < 2400: |
| raise Exception("Unexpected frequency") |
| sec = hapd.get_status_field("secondary_channel") |
| if int(sec) == 0: |
| raise Exception("Secondary channel not set") |
| |
| dev[0].connect("test-acs", psk="12345678", scan_freq=freq) |
| |
| def test_ap_acs_5ghz(dev, apdev): |
| """Automatic channel selection on 5 GHz""" |
| try: |
| hapd = None |
| force_prev_ap_on_5g(apdev[0]) |
| params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678") |
| params['hw_mode'] = 'a' |
| params['channel'] = '0' |
| params['country_code'] = 'US' |
| hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False) |
| wait_acs(hapd) |
| freq = hapd.get_status_field("freq") |
| if int(freq) < 5000: |
| raise Exception("Unexpected frequency") |
| |
| dev[0].connect("test-acs", psk="12345678", scan_freq=freq) |
| |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
| |
| def test_ap_acs_5ghz_40mhz(dev, apdev): |
| """Automatic channel selection on 5 GHz for 40 MHz channel""" |
| try: |
| hapd = None |
| force_prev_ap_on_5g(apdev[0]) |
| params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678") |
| params['hw_mode'] = 'a' |
| params['channel'] = '0' |
| params['ht_capab'] = '[HT40+]' |
| params['country_code'] = 'US' |
| hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False) |
| wait_acs(hapd) |
| freq = hapd.get_status_field("freq") |
| if int(freq) < 5000: |
| raise Exception("Unexpected frequency") |
| |
| sec = hapd.get_status_field("secondary_channel") |
| if int(sec) == 0: |
| raise Exception("Secondary channel not set") |
| |
| dev[0].connect("test-acs", psk="12345678", scan_freq=freq) |
| |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
| |
| def test_ap_acs_vht(dev, apdev): |
| """Automatic channel selection for VHT""" |
| try: |
| hapd = None |
| force_prev_ap_on_5g(apdev[0]) |
| params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678") |
| params['hw_mode'] = 'a' |
| params['channel'] = '0' |
| params['ht_capab'] = '[HT40+]' |
| params['country_code'] = 'US' |
| params['ieee80211ac'] = '1' |
| params['vht_oper_chwidth'] = '1' |
| hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False) |
| wait_acs(hapd) |
| freq = hapd.get_status_field("freq") |
| if int(freq) < 5000: |
| raise Exception("Unexpected frequency") |
| |
| sec = hapd.get_status_field("secondary_channel") |
| if int(sec) == 0: |
| raise Exception("Secondary channel not set") |
| |
| dev[0].connect("test-acs", psk="12345678", scan_freq=freq) |
| |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
| |
| def test_ap_acs_bias(dev, apdev): |
| """Automatic channel selection with bias values""" |
| force_prev_ap_on_24g(apdev[0]) |
| params = hostapd.wpa2_params(ssid="test-acs", passphrase="12345678") |
| params['channel'] = '0' |
| params['acs_chan_bias'] = '1:0.8 3:1.2 6:0.7 11:0.8' |
| hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False) |
| wait_acs(hapd) |
| |
| freq = hapd.get_status_field("freq") |
| if int(freq) < 2400: |
| raise Exception("Unexpected frequency") |
| |
| dev[0].connect("test-acs", psk="12345678", scan_freq=freq) |
