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tests: HT with 20 MHz channel width doing CSA to 40 MHz

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Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
This commit is contained in:
Jouni Malinen 2020-03-06 20:21:27 +02:00 committed by Jouni Malinen
parent 154722e5b1
commit 2fb59e77b5
1 changed files with 32 additions and 0 deletions
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32
tests/hwsim/test_ap_ht.py
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@ -1168,6 +1168,38 @@ def test_ap_ht40_csa3(dev, apdev):
set_world_reg(apdev[0], None, dev[0])
dev[0].flush_scan_cache()
def test_ap_ht_20_to_40_csa(dev, apdev):
"""HT with 20 MHz channel width doing CSA to 40 MHz"""
csa_supported(dev[0])
params = {"ssid": "ht",
"channel": "1",
"ieee80211n": "1"}
hapd = hostapd.add_ap(apdev[0], params)
dev[0].connect("ht", key_mgmt="NONE", scan_freq="2412")
hapd.wait_sta()
res = dev[0].request("SIGNAL_POLL")
logger.info("SIGNAL_POLL:\n" + res)
sig = res.splitlines()
if 'WIDTH=20 MHz' not in sig:
raise Exception("20 MHz channel bandwidth not used on the original channel")
hapd.request("CHAN_SWITCH 5 2462 ht sec_channel_offset=-1 bandwidth=40")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=10)
if ev is None:
raise Exception("CSA finished event timed out")
if "freq=2462" not in ev:
raise Exception("Unexpected channel in CSA finished event")
ev = dev[0].wait_event(["CTRL-EVENT-DISCONNECTED"], timeout=0.5)
if ev is not None:
raise Exception("Unexpected STA disconnection during CSA")
res = dev[0].request("SIGNAL_POLL")
logger.info("SIGNAL_POLL:\n" + res)
sig = res.splitlines()
if 'WIDTH=40 MHz' not in sig:
raise Exception("40 MHz channel bandwidth not used on the new channel")
@remote_compatible
def test_prefer_ht20(dev, apdev):
"""Preference on HT20 over no-HT"""