# Test cases for VHT operations with hostapd # Copyright (c) 2014, Qualcomm Atheros, Inc. # Copyright (c) 2013, Intel Corporation # # This software may be distributed under the terms of the BSD license. # See README for more details. import logging logger = logging.getLogger() import os import subprocess, time import hwsim_utils import hostapd from utils import HwsimSkip from test_dfs import wait_dfs_event from test_ap_csa import csa_supported def vht_supported(): cmd = subprocess.Popen(["iw", "reg", "get"], stdout=subprocess.PIPE) reg = cmd.stdout.read() if "@ 80)" in reg or "@ 160)" in reg: return True return False def test_ap_vht80(dev, apdev): """VHT with 80 MHz channel width""" try: hapd = None params = { "ssid": "vht", "country_code": "FI", "hw_mode": "a", "channel": "36", "ht_capab": "[HT40+]", "ieee80211n": "1", "ieee80211ac": "1", "vht_oper_chwidth": "1", "vht_oper_centr_freq_seg0_idx": "42" } hapd = hostapd.add_ap(apdev[0]['ifname'], params) dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180") hwsim_utils.test_connectivity(dev[0], hapd) except Exception, e: if isinstance(e, Exception) and str(e) == "AP startup failed": if not vht_supported(): raise HwsimSkip("80 MHz channel not supported in regulatory information") raise finally: dev[0].request("DISCONNECT") if hapd: hapd.request("DISABLE") subprocess.call(['sudo', 'iw', 'reg', 'set', '00']) dev[0].flush_scan_cache() def test_ap_vht80_params(dev, apdev): """VHT with 80 MHz channel width and number of optional features enabled""" try: hapd = None params = { "ssid": "vht", "country_code": "FI", "hw_mode": "a", "channel": "36", "ht_capab": "[HT40+][SHORT-GI-40][DSS_CCK-40]", "ieee80211n": "1", "ieee80211ac": "1", "vht_oper_chwidth": "1", "vht_capab": "[MAX-MPDU-11454][RXLDPC][SHORT-GI-80][TX-STBC-2BY1][RX-STBC-1][MAX-A-MPDU-LEN-EXP0]", "vht_oper_centr_freq_seg0_idx": "42", "require_vht": "1" } hapd = hostapd.add_ap(apdev[0]['ifname'], params) dev[1].connect("vht", key_mgmt="NONE", scan_freq="5180", disable_vht="1", wait_connect=False) dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180") ev = dev[1].wait_event(["CTRL-EVENT-ASSOC-REJECT"]) if ev is None: raise Exception("Association rejection timed out") if "status_code=104" not in ev: raise Exception("Unexpected rejection status code") dev[1].request("DISCONNECT") hwsim_utils.test_connectivity(dev[0], hapd) except Exception, e: if isinstance(e, Exception) and str(e) == "AP startup failed": if not vht_supported(): raise HwsimSwkip("80 MHz channel not supported in regulatory information") raise finally: dev[0].request("DISCONNECT") dev[1].request("DISCONNECT") if hapd: hapd.request("DISABLE") subprocess.call(['sudo', 'iw', 'reg', 'set', '00']) dev[0].flush_scan_cache() dev[1].flush_scan_cache() def test_ap_vht_20(devs, apdevs): """VHT and 20 MHz channel""" dev = devs[0] ap = apdevs[0] try: hapd = None params = { "ssid": "test-vht20", "country_code": "DE", "hw_mode": "a", "channel": "36", "ieee80211n": "1", "ieee80211ac": "1", "ht_capab": "", "vht_capab": "", "vht_oper_chwidth": "0", "vht_oper_centr_freq_seg0_idx": "0", "supported_rates": "60 120 240 360 480 540", "require_vht": "1", } hapd = hostapd.add_ap(ap['ifname'], params) dev.connect("test-vht20", scan_freq="5180", key_mgmt="NONE") hwsim_utils.test_connectivity(dev, hapd) finally: dev.request("DISCONNECT") if hapd: hapd.request("DISABLE") subprocess.call(['sudo', 'iw', 'reg', 'set', '00']) dev.flush_scan_cache() def test_ap_vht_40(devs, apdevs): """VHT and 40 MHz channel""" dev = devs[0] ap = apdevs[0] try: hapd = None params = { "ssid": "test-vht40", "country_code": "DE", "hw_mode": "a", "channel": "36", "ieee80211n": "1", "ieee80211ac": "1", "ht_capab": "[HT40+]", "vht_capab": "", "vht_oper_chwidth": "0", "vht_oper_centr_freq_seg0_idx": "0", } hapd = hostapd.add_ap(ap['ifname'], params) dev.connect("test-vht40", scan_freq="5180", key_mgmt="NONE") hwsim_utils.test_connectivity(dev, hapd) finally: dev.request("DISCONNECT") if hapd: hapd.request("DISABLE") subprocess.call(['sudo', 'iw', 'reg', 'set', '00']) dev.flush_scan_cache() def test_ap_vht_capab_not_supported(dev, apdev): """VHT configuration with driver not supporting all vht_capab entries""" try: params = { "ssid": "vht", "country_code": "FI", "hw_mode": "a", "channel": "36", "ht_capab": "[HT40+][SHORT-GI-40][DSS_CCK-40]", "ieee80211n": "1", "ieee80211ac": "1", "vht_oper_chwidth": "1", "vht_capab": "[MAX-MPDU-7991][MAX-MPDU-11454][VHT160][VHT160-80PLUS80][RXLDPC][SHORT-GI-80][SHORT-GI-160][TX-STBC-2BY1][RX-STBC-1][RX-STBC-12][RX-STBC-123][RX-STBC-1234][SU-BEAMFORMER][SU-BEAMFORMEE][BF-ANTENNA-2][SOUNDING-DIMENSION-2][MU-BEAMFORMER][MU-BEAMFORMEE][VHT-TXOP-PS][HTC-VHT][MAX-A-MPDU-LEN-EXP0][MAX-A-MPDU-LEN-EXP7][VHT-LINK-ADAPT2][VHT-LINK-ADAPT3][RX-ANTENNA-PATTERN][TX-ANTENNA-PATTERN]", "vht_oper_centr_freq_seg0_idx": "42", "require_vht": "1" } hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False) ev = hapd.wait_event(["AP-DISABLED"], timeout=5) if ev is None: raise Exception("Startup failure not reported") for i in range(1, 7): if "OK" not in hapd.request("SET vht_capab [MAX-A-MPDU-LEN-EXP%d]" % i): raise Exception("Unexpected SET failure") finally: subprocess.call(['sudo', 'iw', 'reg', 'set', '00']) def test_ap_vht160(dev, apdev): """VHT with 160 MHz channel width""" try: hapd = None hapd2 = None params = { "ssid": "vht", "country_code": "FI", "hw_mode": "a", "channel": "36", "ht_capab": "[HT40+]", "ieee80211n": "1", "ieee80211ac": "1", "vht_oper_chwidth": "2", "vht_oper_centr_freq_seg0_idx": "50", 'ieee80211d': '1', 'ieee80211h': '1' } hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False) ev = wait_dfs_event(hapd, "DFS-CAC-START", 5) if "DFS-CAC-START" not in ev: raise Exception("Unexpected DFS event") state = hapd.get_status_field("state") if state != "DFS": if state == "DISABLED" and not os.path.exists("dfs"): # Not all systems have recent enough CRDA version and # wireless-regdb changes to support 160 MHz and DFS. For now, # do not report failures for this test case. raise HwsimSkip("CRDA or wireless-regdb did not support 160 MHz") raise Exception("Unexpected interface state: " + state) params = { "ssid": "vht2", "country_code": "FI", "hw_mode": "a", "channel": "100", "ht_capab": "[HT40+]", "ieee80211n": "1", "ieee80211ac": "1", "vht_oper_chwidth": "2", "vht_oper_centr_freq_seg0_idx": "114", 'ieee80211d': '1', 'ieee80211h': '1' } hapd2 = hostapd.add_ap(apdev[1]['ifname'], params, wait_enabled=False) ev = wait_dfs_event(hapd2, "DFS-CAC-START", 5) if "DFS-CAC-START" not in ev: raise Exception("Unexpected DFS event(2)") state = hapd2.get_status_field("state") if state != "DFS": raise Exception("Unexpected interface state(2): " + state) logger.info("Waiting for CAC to complete") ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70) if "success=1" not in ev: raise Exception("CAC failed") if "freq=5180" not in ev: raise Exception("Unexpected DFS freq result") ev = hapd.wait_event(["AP-ENABLED"], timeout=5) if not ev: raise Exception("AP setup timed out") state = hapd.get_status_field("state") if state != "ENABLED": raise Exception("Unexpected interface state") ev = wait_dfs_event(hapd2, "DFS-CAC-COMPLETED", 70) if "success=1" not in ev: raise Exception("CAC failed(2)") if "freq=5500" not in ev: raise Exception("Unexpected DFS freq result(2)") ev = hapd2.wait_event(["AP-ENABLED"], timeout=5) if not ev: raise Exception("AP setup timed out(2)") state = hapd2.get_status_field("state") if state != "ENABLED": raise Exception("Unexpected interface state(2)") freq = hapd2.get_status_field("freq") if freq != "5500": raise Exception("Unexpected frequency(2)") dev[0].connect("vht", key_mgmt="NONE", scan_freq="5180") hwsim_utils.test_connectivity(dev[0], hapd) sig = dev[0].request("SIGNAL_POLL").splitlines() if "FREQUENCY=5180" not in sig: raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig)) if "WIDTH=160 MHz" not in sig: raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig)) dev[1].connect("vht2", key_mgmt="NONE", scan_freq="5500") hwsim_utils.test_connectivity(dev[1], hapd2) sig = dev[1].request("SIGNAL_POLL").splitlines() if "FREQUENCY=5500" not in sig: raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig)) if "WIDTH=160 MHz" not in sig: raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig)) except Exception, e: if isinstance(e, Exception) and str(e) == "AP startup failed": if not vht_supported(): raise HwsimSkip("80/160 MHz channel not supported in regulatory information") raise finally: dev[0].request("DISCONNECT") dev[1].request("DISCONNECT") if hapd: hapd.request("DISABLE") if hapd2: hapd2.request("DISABLE") subprocess.call(['sudo', 'iw', 'reg', 'set', '00']) dev[0].flush_scan_cache() dev[1].flush_scan_cache() def test_ap_vht80plus80(dev, apdev): """VHT with 80+80 MHz channel width""" try: hapd = None hapd2 = None params = { "ssid": "vht", "country_code": "US", "hw_mode": "a", "channel": "52", "ht_capab": "[HT40+]", "ieee80211n": "1", "ieee80211ac": "1", "vht_oper_chwidth": "3", "vht_oper_centr_freq_seg0_idx": "58", "vht_oper_centr_freq_seg1_idx": "155", 'ieee80211d': '1', 'ieee80211h': '1' } hapd = hostapd.add_ap(apdev[0]['ifname'], params, wait_enabled=False) # This will actually fail since DFS on 80+80 is not yet supported ev = hapd.wait_event(["AP-DISABLED"], timeout=5) # ignore result to avoid breaking the test once 80+80 DFS gets enabled params = { "ssid": "vht2", "country_code": "US", "hw_mode": "a", "channel": "36", "ht_capab": "[HT40+]", "ieee80211n": "1", "ieee80211ac": "1", "vht_oper_chwidth": "3", "vht_oper_centr_freq_seg0_idx": "42", "vht_oper_centr_freq_seg1_idx": "155" } hapd2 = hostapd.add_ap(apdev[1]['ifname'], params, wait_enabled=False) ev = hapd2.wait_event(["AP-ENABLED"], timeout=5) if not ev: raise Exception("AP setup timed out(2)") state = hapd2.get_status_field("state") if state != "ENABLED": raise Exception("Unexpected interface state(2)") dev[1].connect("vht2", key_mgmt="NONE", scan_freq="5180") hwsim_utils.test_connectivity(dev[1], hapd2) sig = dev[1].request("SIGNAL_POLL").splitlines() if "FREQUENCY=5180" not in sig: raise Exception("Unexpected SIGNAL_POLL value(1): " + str(sig)) if "WIDTH=80+80 MHz" not in sig: raise Exception("Unexpected SIGNAL_POLL value(2): " + str(sig)) if "CENTER_FRQ1=5210" not in sig: raise Exception("Unexpected SIGNAL_POLL value(3): " + str(sig)) if "CENTER_FRQ2=5775" not in sig: raise Exception("Unexpected SIGNAL_POLL value(4): " + str(sig)) except Exception, e: if isinstance(e, Exception) and str(e) == "AP startup failed": if not vht_supported(): raise HwsimSkip("80/160 MHz channel not supported in regulatory information") raise finally: dev[0].request("DISCONNECT") dev[1].request("DISCONNECT") if hapd: hapd.request("DISABLE") if hapd2: hapd2.request("DISABLE") subprocess.call(['sudo', 'iw', 'reg', 'set', '00']) dev[0].flush_scan_cache() dev[1].flush_scan_cache() def test_ap_vht80_csa(dev, apdev): """VHT with 80 MHz channel width and CSA""" csa_supported(dev[0]) try: hapd = None params = { "ssid": "vht", "country_code": "US", "hw_mode": "a", "channel": "149", "ht_capab": "[HT40+]", "ieee80211n": "1", "ieee80211ac": "1", "vht_oper_chwidth": "1", "vht_oper_centr_freq_seg0_idx": "155" } hapd = hostapd.add_ap(apdev[0]['ifname'], params) dev[0].connect("vht", key_mgmt="NONE", scan_freq="5745") hwsim_utils.test_connectivity(dev[0], hapd) hapd.request("CHAN_SWITCH 5 5180 ht vht blocktx center_freq1=5210 sec_channel_offset=1 bandwidth=80") ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10) if ev is None: raise Exception("CSA finished event timed out") if "freq=5180" not in ev: raise Exception("Unexpected channel in CSA finished event") time.sleep(0.5) hwsim_utils.test_connectivity(dev[0], hapd) hapd.request("CHAN_SWITCH 5 5745") ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10) if ev is None: raise Exception("CSA finished event timed out") if "freq=5745" not in ev: raise Exception("Unexpected channel in CSA finished event") time.sleep(0.5) hwsim_utils.test_connectivity(dev[0], hapd) # This CSA to same channel will fail in kernel, so use this only for # extra code coverage. hapd.request("CHAN_SWITCH 5 5745") hapd.wait_event(["AP-CSA-FINISHED"], timeout=1) except Exception, e: if isinstance(e, Exception) and str(e) == "AP startup failed": if not vht_supported(): raise HwsimSkip("80 MHz channel not supported in regulatory information") raise finally: dev[0].request("DISCONNECT") if hapd: hapd.request("DISABLE") subprocess.call(['sudo', 'iw', 'reg', 'set', '00']) dev[0].flush_scan_cache()