| # Test cases for DFS |
| # Copyright (c) 2013, Jouni Malinen <j@w1.fi> |
| # |
| # This software may be distributed under the terms of the BSD license. |
| # See README for more details. |
| |
| import os |
| import subprocess |
| import time |
| import logging |
| logger = logging.getLogger() |
| |
| import hwsim_utils |
| import hostapd |
| from utils import HwsimSkip |
| |
| def wait_dfs_event(hapd, event, timeout): |
| dfs_events = [ "DFS-RADAR-DETECTED", "DFS-NEW-CHANNEL", |
| "DFS-CAC-START", "DFS-CAC-COMPLETED", |
| "DFS-NOP-FINISHED", "AP-ENABLED", "AP-CSA-FINISHED" ] |
| ev = hapd.wait_event(dfs_events, timeout=timeout) |
| if not ev: |
| raise Exception("DFS event timed out") |
| if event and event not in ev: |
| raise Exception("Unexpected DFS event") |
| return ev |
| |
| def start_dfs_ap(ap, allow_failure=False, ssid="dfs", ht=True, ht40=False, |
| ht40minus=False, vht80=False, vht20=False, chanlist=None): |
| ifname = ap['ifname'] |
| logger.info("Starting AP " + ifname + " on DFS channel") |
| hapd_global = hostapd.HostapdGlobal() |
| hapd_global.remove(ifname) |
| hapd_global.add(ifname) |
| hapd = hostapd.Hostapd(ifname) |
| if not hapd.ping(): |
| raise Exception("Could not ping hostapd") |
| hapd.set_defaults() |
| hapd.set("ssid", ssid) |
| hapd.set("country_code", "FI") |
| hapd.set("ieee80211d", "1") |
| hapd.set("ieee80211h", "1") |
| hapd.set("hw_mode", "a") |
| hapd.set("channel", "52") |
| if not ht: |
| hapd.set("ieee80211n", "0") |
| if ht40: |
| hapd.set("ht_capab", "[HT40+]") |
| elif ht40minus: |
| hapd.set("ht_capab", "[HT40-]") |
| hapd.set("channel", "56") |
| if vht80: |
| hapd.set("ieee80211ac", "1") |
| hapd.set("vht_oper_chwidth", "1") |
| hapd.set("vht_oper_centr_freq_seg0_idx", "58") |
| if vht20: |
| hapd.set("ieee80211ac", "1") |
| hapd.set("vht_oper_chwidth", "0") |
| hapd.set("vht_oper_centr_freq_seg0_idx", "0") |
| if chanlist: |
| hapd.set("chanlist", chanlist) |
| hapd.enable() |
| |
| 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 allow_failure: |
| logger.info("Interface state not DFS: " + state) |
| if not os.path.exists("dfs"): |
| raise HwsimSkip("Assume DFS testing not supported") |
| raise Exception("Failed to start DFS AP") |
| raise Exception("Unexpected interface state: " + state) |
| |
| return hapd |
| |
| def dfs_simulate_radar(hapd): |
| logger.info("Trigger a simulated radar event") |
| phyname = hapd.get_driver_status_field("phyname") |
| radar_file = '/sys/kernel/debug/ieee80211/' + phyname + '/hwsim/dfs_simulate_radar' |
| with open(radar_file, 'w') as f: |
| f.write('1') |
| |
| def test_dfs(dev, apdev): |
| """DFS CAC functionality on clear channel""" |
| try: |
| hapd = None |
| hapd = start_dfs_ap(apdev[0], allow_failure=True) |
| |
| ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70) |
| if "success=1" not in ev: |
| raise Exception("CAC failed") |
| if "freq=5260" 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") |
| |
| freq = hapd.get_status_field("freq") |
| if freq != "5260": |
| raise Exception("Unexpected frequency") |
| |
| dev[0].connect("dfs", key_mgmt="NONE") |
| hwsim_utils.test_connectivity(dev[0], hapd) |
| |
| hapd.request("RADAR DETECTED freq=5260 ht_enabled=1 chan_width=1") |
| ev = hapd.wait_event(["DFS-RADAR-DETECTED"], timeout=10) |
| if ev is None: |
| raise Exception("DFS-RADAR-DETECTED event not reported") |
| if "freq=5260" not in ev: |
| raise Exception("Incorrect frequency in radar detected event: " + ev); |
| ev = hapd.wait_event(["DFS-NEW-CHANNEL"], timeout=70) |
| if ev is None: |
| raise Exception("DFS-NEW-CHANNEL event not reported") |
| if "freq=5260" in ev: |
| raise Exception("Channel did not change after radar was detected"); |
| |
| ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=70) |
| if ev is None: |
| raise Exception("AP-CSA-FINISHED event not reported") |
| if "freq=5260" in ev: |
| raise Exception("Channel did not change after radar was detected(2)"); |
| time.sleep(1) |
| hwsim_utils.test_connectivity(dev[0], hapd) |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
| |
| def test_dfs_radar(dev, apdev): |
| """DFS CAC functionality with radar detected""" |
| try: |
| hapd = None |
| hapd2 = None |
| hapd = start_dfs_ap(apdev[0], allow_failure=True) |
| time.sleep(1) |
| |
| dfs_simulate_radar(hapd) |
| |
| hapd2 = start_dfs_ap(apdev[1], ssid="dfs2", ht40=True) |
| |
| ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5) |
| if ev is None: |
| raise Exception("Timeout on DFS aborted event") |
| if "success=0 freq=5260" not in ev: |
| raise Exception("Unexpected DFS aborted event contents: " + ev) |
| |
| ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5) |
| if "freq=5260" not in ev: |
| raise Exception("Unexpected DFS radar detection freq") |
| |
| ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5) |
| if "freq=5260" in ev: |
| raise Exception("Unexpected DFS new freq") |
| |
| ev = wait_dfs_event(hapd, None, 5) |
| if "AP-ENABLED" in ev: |
| logger.info("Started AP on non-DFS channel") |
| else: |
| logger.info("Trying to start AP on another DFS channel") |
| if "DFS-CAC-START" not in ev: |
| raise Exception("Unexpected DFS event") |
| if "freq=5260" in ev: |
| raise Exception("Unexpected DFS CAC freq") |
| |
| ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70) |
| if "success=1" not in ev: |
| raise Exception("CAC failed") |
| if "freq=5260" in ev: |
| raise Exception("Unexpected DFS freq result - radar channel") |
| |
| 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") |
| |
| freq = hapd.get_status_field("freq") |
| if freq == "5260": |
| raise Exception("Unexpected frequency: " + freq) |
| |
| dev[0].connect("dfs", key_mgmt="NONE") |
| |
| ev = hapd2.wait_event(["AP-ENABLED"], timeout=70) |
| if not ev: |
| raise Exception("AP2 setup timed out") |
| |
| dfs_simulate_radar(hapd2) |
| |
| ev = wait_dfs_event(hapd2, "DFS-RADAR-DETECTED", 5) |
| if "freq=5260 ht_enabled=1 chan_offset=1 chan_width=2" not in ev: |
| raise Exception("Unexpected DFS radar detection freq from AP2") |
| |
| ev = wait_dfs_event(hapd2, "DFS-NEW-CHANNEL", 5) |
| if "freq=5260" in ev: |
| raise Exception("Unexpected DFS new freq for AP2") |
| |
| wait_dfs_event(hapd2, None, 5) |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| if hapd2: |
| hapd2.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
| |
| def test_dfs_radar_on_non_dfs_channel(dev, apdev): |
| """DFS radar detection test code on non-DFS channel""" |
| params = { "ssid": "radar" } |
| hapd = hostapd.add_ap(apdev[0]['ifname'], params) |
| |
| hapd.request("RADAR DETECTED freq=5260 ht_enabled=1 chan_width=1") |
| hapd.request("RADAR DETECTED freq=2412 ht_enabled=1 chan_width=1") |
| |
| def test_dfs_radar_chanlist(dev, apdev): |
| """DFS chanlist when radar is detected""" |
| try: |
| hapd = None |
| hapd = start_dfs_ap(apdev[0], chanlist="40 44", allow_failure=True) |
| time.sleep(1) |
| |
| dfs_simulate_radar(hapd) |
| |
| ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5) |
| if ev is None: |
| raise Exception("Timeout on DFS aborted event") |
| if "success=0 freq=5260" not in ev: |
| raise Exception("Unexpected DFS aborted event contents: " + ev) |
| |
| ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5) |
| if "freq=5260" not in ev: |
| raise Exception("Unexpected DFS radar detection freq") |
| |
| ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5) |
| if "freq=5200 chan=40" not in ev and "freq=5220 chan=44" not in ev: |
| raise Exception("Unexpected DFS new freq: " + ev) |
| |
| ev = wait_dfs_event(hapd, None, 5) |
| if "AP-ENABLED" not in ev: |
| raise Exception("Unexpected DFS event") |
| dev[0].connect("dfs", key_mgmt="NONE") |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
| |
| def test_dfs_radar_chanlist_vht80(dev, apdev): |
| """DFS chanlist when radar is detected and VHT80 configured""" |
| try: |
| hapd = None |
| hapd = start_dfs_ap(apdev[0], chanlist="36", ht40=True, vht80=True, |
| allow_failure=True) |
| time.sleep(1) |
| |
| dfs_simulate_radar(hapd) |
| |
| ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5) |
| if ev is None: |
| raise Exception("Timeout on DFS aborted event") |
| if "success=0 freq=5260" not in ev: |
| raise Exception("Unexpected DFS aborted event contents: " + ev) |
| |
| ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5) |
| if "freq=5260" not in ev: |
| raise Exception("Unexpected DFS radar detection freq") |
| |
| ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5) |
| if "freq=5180 chan=36 sec_chan=1" not in ev: |
| raise Exception("Unexpected DFS new freq: " + ev) |
| |
| ev = wait_dfs_event(hapd, None, 5) |
| if "AP-ENABLED" not in ev: |
| raise Exception("Unexpected DFS event") |
| dev[0].connect("dfs", key_mgmt="NONE") |
| |
| if hapd.get_status_field('vht_oper_centr_freq_seg0_idx') != "42": |
| raise Exception("Unexpected seg0 idx") |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
| |
| def test_dfs_radar_chanlist_vht20(dev, apdev): |
| """DFS chanlist when radar is detected and VHT40 configured""" |
| try: |
| hapd = None |
| hapd = start_dfs_ap(apdev[0], chanlist="36", vht20=True, |
| allow_failure=True) |
| time.sleep(1) |
| |
| dfs_simulate_radar(hapd) |
| |
| ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5) |
| if ev is None: |
| raise Exception("Timeout on DFS aborted event") |
| if "success=0 freq=5260" not in ev: |
| raise Exception("Unexpected DFS aborted event contents: " + ev) |
| |
| ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5) |
| if "freq=5260" not in ev: |
| raise Exception("Unexpected DFS radar detection freq") |
| |
| ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5) |
| if "freq=5180 chan=36 sec_chan=0" not in ev: |
| raise Exception("Unexpected DFS new freq: " + ev) |
| |
| ev = wait_dfs_event(hapd, None, 5) |
| if "AP-ENABLED" not in ev: |
| raise Exception("Unexpected DFS event") |
| dev[0].connect("dfs", key_mgmt="NONE") |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
| |
| def test_dfs_radar_no_ht(dev, apdev): |
| """DFS chanlist when radar is detected and no HT configured""" |
| try: |
| hapd = None |
| hapd = start_dfs_ap(apdev[0], chanlist="36", ht=False, |
| allow_failure=True) |
| time.sleep(1) |
| |
| dfs_simulate_radar(hapd) |
| |
| ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5) |
| if ev is None: |
| raise Exception("Timeout on DFS aborted event") |
| if "success=0 freq=5260" not in ev: |
| raise Exception("Unexpected DFS aborted event contents: " + ev) |
| |
| ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5) |
| if "freq=5260 ht_enabled=0" not in ev: |
| raise Exception("Unexpected DFS radar detection freq: " + ev) |
| |
| ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5) |
| if "freq=5180 chan=36 sec_chan=0" not in ev: |
| raise Exception("Unexpected DFS new freq: " + ev) |
| |
| ev = wait_dfs_event(hapd, None, 5) |
| if "AP-ENABLED" not in ev: |
| raise Exception("Unexpected DFS event") |
| dev[0].connect("dfs", key_mgmt="NONE") |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
| |
| def test_dfs_radar_ht40minus(dev, apdev): |
| """DFS chanlist when radar is detected and HT40- configured""" |
| try: |
| hapd = None |
| hapd = start_dfs_ap(apdev[0], chanlist="36", ht40minus=True, |
| allow_failure=True) |
| time.sleep(1) |
| |
| dfs_simulate_radar(hapd) |
| |
| ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 5) |
| if ev is None: |
| raise Exception("Timeout on DFS aborted event") |
| if "success=0 freq=5280 ht_enabled=1 chan_offset=-1" not in ev: |
| raise Exception("Unexpected DFS aborted event contents: " + ev) |
| |
| ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 5) |
| if "freq=5280 ht_enabled=1 chan_offset=-1" not in ev: |
| raise Exception("Unexpected DFS radar detection freq: " + ev) |
| |
| ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5) |
| if "freq=5180 chan=36 sec_chan=1" not in ev: |
| raise Exception("Unexpected DFS new freq: " + ev) |
| |
| ev = wait_dfs_event(hapd, None, 5) |
| if "AP-ENABLED" not in ev: |
| raise Exception("Unexpected DFS event") |
| dev[0].connect("dfs", key_mgmt="NONE") |
| finally: |
| dev[0].request("DISCONNECT") |
| if hapd: |
| hapd.request("DISABLE") |
| subprocess.call(['iw', 'reg', 'set', '00']) |
| dev[0].flush_scan_cache() |
