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tests: Fix DFS radar-during-CAC test case

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This uses mac80211_hwsim dfs_simulate_radar to get the real kernel side
CAC operation executed and aborted due to radar detection. This allows
another channel to be selected properly through another CAC run.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2014-10-09 01:59:52 +03:00 committed by Jouni Malinen
parent 831cb7af96
commit bc86d8c158
1 changed files with 45 additions and 27 deletions
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72
tests/hwsim/test_dfs.py
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@ -20,7 +20,7 @@ def wait_dfs_event(hapd, event, timeout):
ev = hapd.wait_event(dfs_events, timeout=timeout) ev = hapd.wait_event(dfs_events, timeout=timeout)
if not ev: if not ev:
raise Exception("DFS event timed out") raise Exception("DFS event timed out")
if event not in ev: if event and event not in ev:
raise Exception("Unexpected DFS event") raise Exception("Unexpected DFS event")
return ev return ev
@ -109,46 +109,64 @@ def test_dfs(dev, apdev):
def test_dfs_radar(dev, apdev): def test_dfs_radar(dev, apdev):
"""DFS CAC functionality with radar detected""" """DFS CAC functionality with radar detected"""
if not os.path.exists("dfs"):
return "skip"
try: try:
hapd = start_dfs_ap(apdev[0]) hapd = start_dfs_ap(apdev[0])
if hapd is None:
if not os.path.exists("dfs"):
return "skip"
raise Exception("Failed to start DFS AP")
time.sleep(1)
hapd.request("RADAR DETECTED freq=5260 ht_enabled=1 chan_width=1") phyname = hapd.get_driver_status_field("phyname")
ev = wait_dfs_event(hapd, "DFS-RADAR-DETECTED", 70) 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()
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: if "freq=5260" not in ev:
raise Exception("Unexpected DFS radar detection freq") raise Exception("Unexpected DFS radar detection freq")
state = hapd.get_status_field("state")
if state != "DFS":
raise Exception("Unexpected interface state")
ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5) ev = wait_dfs_event(hapd, "DFS-NEW-CHANNEL", 5)
if "freq=5260" in ev: if "freq=5260" in ev:
raise Exception("Unexpected DFS new freq") raise Exception("Unexpected DFS new freq")
ev = wait_dfs_event(hapd, "DFS-CAC-START", 5) ev = wait_dfs_event(hapd, None, 5)
if "DFS-CAC-START" not in ev: if "AP-ENABLED" in ev:
raise Exception("Unexpected DFS event") 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) ev = wait_dfs_event(hapd, "DFS-CAC-COMPLETED", 70)
if "success=1" not in ev: if "success=1" not in ev:
raise Exception("CAC failed") raise Exception("CAC failed")
if "freq=5260" in ev: if "freq=5260" in ev:
raise Exception("Unexpected DFS freq result - radar channel") raise Exception("Unexpected DFS freq result - radar channel")
ev = hapd.wait_event(["AP-ENABLED"], timeout=5) ev = hapd.wait_event(["AP-ENABLED"], timeout=5)
if not ev: if not ev:
raise Exception("AP setup timed out") raise Exception("AP setup timed out")
state = hapd.get_status_field("state") state = hapd.get_status_field("state")
if state != "ENABLED": if state != "ENABLED":
raise Exception("Unexpected interface state") raise Exception("Unexpected interface state")
freq = hapd.get_status_field("freq") freq = hapd.get_status_field("freq")
if freq != "5260": if freq == "5260":
raise Exception("Unexpected frequency") raise Exception("Unexpected frequency: " + freq)
dev[0].connect("dfs", key_mgmt="NONE") dev[0].connect("dfs", key_mgmt="NONE")
finally: finally: