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