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tests: Update ML discovery test to also check probe requests

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Also check that we can discover BSSs requests using ML probe requests.
Note that this requires a new enough mac80211 which parses the ML probe
request and reports the contained BSSs.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Andrei Otcheretianski <andrei.otcheretianski@intel.com>
This commit is contained in:
Andrei Otcheretianski 2023-11-21 01:51:52 +02:00 committed by Jouni Malinen
parent 32434aa68a
commit a02f52a055
1 changed files with 51 additions and 1 deletions
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52
tests/hwsim/test_eht.py
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@ -250,6 +250,30 @@ def eht_mld_ap_wpa2_params(ssid, passphrase=None, key_mgmt="WPA-PSK-SHA256",
return params
def _eht_mld_probe_req(wpas, hapd, tsf0, link_id=-1):
if "OK" not in wpas.request("ML_PROBE_REQ bssid=%s mld_id=0 link_id=%d" % (hapd.own_addr(), link_id)):
raise Exception("Failed to request ML probe request")
ev = wpas.wait_event(["CTRL-EVENT-SCAN-STARTED"])
if ev is None:
raise Exception("Scan did not start")
ev = wpas.wait_event(["CTRL-EVENT-SCAN-RESULTS"])
if ev is None:
raise Exception("Scan did not complete")
logger.info("ML Probe request scan done")
bss = wpas.get_bss(hapd.own_addr())
if not bss:
raise Exception("AP did not reply to ML probe request")
tsf1 = int(bss['tsf'])
logger.info("tsf0=%s, tsf1=%s" % (tsf0, tsf1))
if tsf0 >= tsf1:
raise Exception("AP was not found in ML probe request scan")
def test_eht_mld_discovery(dev, apdev):
"""EHT MLD AP discovery"""
with HWSimRadio(use_mlo=True) as (hapd_radio, hapd_iface), \
@ -269,7 +293,8 @@ def test_eht_mld_discovery(dev, apdev):
hapd0 = eht_mld_enable_ap(hapd_iface, link0_params)
hapd1 = eht_mld_enable_ap(hapd_iface, link1_params)
res = wpas.request("SCAN freq=2412,2417")
# Only scan link 0
res = wpas.request("SCAN freq=2412")
if "FAIL" in res:
raise Exception("Failed to start scan")
@ -296,6 +321,20 @@ def test_eht_mld_discovery(dev, apdev):
if ml_pattern.search(bss) is None:
raise Exception("ML element not found for first link")
# Save the tsf0 for checking ML Probe request scan later
tsf0 = int(wpas.get_bss(hapd0.own_addr())['tsf'])
if wpas.get_bss(hapd1.own_addr()) is not None:
raise Exception("BSS for link 1 found without ML probe request")
# Now send an ML probe request (for all links)
_eht_mld_probe_req(wpas, hapd0, tsf0)
tsf0 = int(wpas.get_bss(hapd0.own_addr())['tsf'])
# NOTE: hostapd incorrectly reports a TSF offset of zero
# This only works because the source is always the ML probe response
tsf1 = int(wpas.get_bss(hapd1.own_addr())['tsf'])
bss = wpas.request("BSS " + hapd1.own_addr())
logger.info("BSS 1: " + str(bss))
@ -305,6 +344,17 @@ def test_eht_mld_discovery(dev, apdev):
if ml_pattern.search(bss) is None:
raise Exception("ML element not found for second link")
_eht_mld_probe_req(wpas, hapd0, tsf0, link_id=1)
if int(wpas.get_bss(hapd1.own_addr())['tsf']) <= tsf1:
raise Exception("Probe for link ID did not update BSS")
tsf0 = int(wpas.get_bss(hapd0.own_addr())['tsf'])
tsf1 = int(wpas.get_bss(hapd1.own_addr())['tsf'])
# Probing the wrong link ID should not update second link
_eht_mld_probe_req(wpas, hapd0, tsf0, link_id=4)
if int(wpas.get_bss(hapd1.own_addr())['tsf']) != tsf1:
raise Exception("Probe for other link ID not updated BSS")
def test_eht_mld_owe_two_links(dev, apdev):
"""EHT MLD AP with MLD client OWE connection using two links"""
with HWSimRadio(use_mlo=True) as (hapd0_radio, hapd0_iface), \