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tests: DFS pre CAC tests

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Add test cases that check preCAC, which is available for EU regulatory
domain. Also confirm that preCAC is not used for US.

Signed-off-by: Janusz Dziedzic <janusz.dziedzic@gmail.com>
This commit is contained in:
Janusz Dziedzic 2020-10-11 21:01:53 +02:00 committed by Jouni Malinen
parent ef26fc19fa
commit fce6fb0ec2
1 changed files with 71 additions and 0 deletions
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71
tests/hwsim/test_dfs.py
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@ -694,3 +694,74 @@ def test_dfs_no_available_channel(dev, apdev):
raise Exception("AP was not disabled")
finally:
clear_regdom(hapd, dev)
def dfs_chan_switch_precac(dev, apdev, country):
"""DFS channel switch pre CAC"""
try:
hapd = None
# Toggle regulatory - clean all preCAC
hostapd.cmd_execute(apdev[0], ['iw', 'reg', 'set', 'US'])
hapd = start_dfs_ap(apdev[0], country=country)
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")
freq = hapd.get_status_field("freq")
if freq != "5260":
raise Exception("Unexpected frequency")
# TODO add/connect station here
# Today skip this step while dev[0].connect()
# for some reason toggle regulatory to US
# and clean preCAC
# Back to non DFS channel
if "OK" not in hapd.request("CHAN_SWITCH 5 5180 ht"):
raise Exception("CHAN_SWITCH 5180 failed")
ev = hapd.wait_event(["AP-CSA-FINISHED"], timeout=5)
if not ev:
raise Exception("No CSA finished event - 5180")
freq = hapd.get_status_field("freq")
if freq != "5180":
raise Exception("Unexpected frequency")
# Today cfg80211 first send AP-CSA-FINISHED and next
# DFS-PRE-CAC-EXPIRED
ev = hapd.wait_event(["DFS-PRE-CAC-EXPIRED"], timeout=3)
if not ev and country == 'US':
raise Exception("US - no CAC-EXPIRED event")
# Back again to DFS channel (CAC passed)
if "OK" not in hapd.request("CHAN_SWITCH 5 5260 ht"):
raise Exception("CHAN_SWITCH 5260 failed")
if country == 'US':
# For non EU we should start CAC again
ev = wait_dfs_event(hapd, "DFS-CAC-START", 5)
if not ev:
raise Exception("No DFS CAC start event")
else:
# For EU preCAC should be used
ev = wait_dfs_event(hapd, "AP-CSA-FINISHED", 5)
if not ev:
raise Exception("No CSA finished event - 5260")
finally:
clear_regdom(hapd, dev)
@long_duration_test
def test_dfs_eu_chan_switch_precac(dev, apdev):
"""DFS channel switch pre CAC - ETSI domain"""
dfs_chan_switch_precac(dev, apdev, 'PL')
@long_duration_test
def test_dfs_us_chan_switch_precac(dev, apdev):
"""DFS channel switch pre CAC - FCC domain"""
dfs_chan_switch_precac(dev, apdev, 'US')