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tests: Radar detection on HT40 channel

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Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2014-10-25 10:52:06 +03:00
parent da1080d721
commit bd5a7691bf
1 changed files with 31 additions and 11 deletions
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42
tests/hwsim/test_dfs.py
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@ -16,7 +16,7 @@ import hostapd
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" ]
"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")
@ -24,7 +24,7 @@ def wait_dfs_event(hapd, event, timeout):
raise Exception("Unexpected DFS event")
return ev
def start_dfs_ap(ap, allow_failure=False):
def start_dfs_ap(ap, allow_failure=False, ssid="dfs", ht40=False):
ifname = ap['ifname']
logger.info("Starting AP " + ifname + " on DFS channel")
hapd_global = hostapd.HostapdGlobal()
@ -34,12 +34,14 @@ def start_dfs_ap(ap, allow_failure=False):
if not hapd.ping():
raise Exception("Could not ping hostapd")
hapd.set_defaults()
hapd.set("ssid", "dfs")
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 ht40:
hapd.set("ht_capab", "[HT40+]")
hapd.enable()
ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
@ -55,6 +57,13 @@ def start_dfs_ap(ap, allow_failure=False):
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:
@ -117,14 +126,9 @@ def test_dfs_radar(dev, apdev):
raise Exception("Failed to start DFS AP")
time.sleep(1)
phyname = hapd.get_driver_status_field("phyname")
radar_file = '/sys/kernel/debug/ieee80211/' + phyname + '/hwsim/dfs_simulate_radar'
cmd = subprocess.Popen(["sudo", "tee", radar_file],
stdin=subprocess.PIPE, stdout=subprocess.PIPE)
cmd.stdin.write("1")
cmd.stdin.close()
cmd.stdout.read()
cmd.stdout.close()
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:
@ -169,6 +173,22 @@ def test_dfs_radar(dev, apdev):
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:
subprocess.call(['sudo', 'iw', 'reg', 'set', '00'])