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tests: Test driver association ML link rejection flow

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The underlying driver can reject only specific links in an association
request. In that case we will only ignore the corresponding BSS. Add a
test for this flow by simulating an association failure on the second
link specifically.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
This commit is contained in:
Benjamin Berg 2023-11-21 01:51:54 +02:00 committed by Jouni Malinen
parent e086ce16a4
commit 5bbc9462a0
2 changed files with 59 additions and 3 deletions
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22
src/drivers/driver_nl80211.c
View file

@ -7326,9 +7326,25 @@ static int wpa_driver_nl80211_associate(
goto fail;
}
ret = send_and_recv_msgs_connect_handle(drv, msg, drv->first_bss, 1,
&err_info);
msg = NULL;
if (!TEST_FAIL_TAG("assoc")) {
ret = send_and_recv_msgs_connect_handle(drv, msg,
drv->first_bss, 1,
&err_info);
msg = NULL;
} else {
int i;
/* Error and force TEST_FAIL checking for each link */
ret = -EINVAL;
for (i = 0; i < MAX_NUM_MLD_LINKS; i++) {
if (!(params->mld_params.valid_links & BIT(i)))
continue;
if (TEST_FAIL_TAG("link"))
err_info.link_id = i;
}
}
if (ret) {
wpa_dbg(drv->ctx, MSG_DEBUG,
"nl80211: MLME command failed (assoc): ret=%d (%s)",

40
tests/hwsim/test_eht.py
View file

@ -793,6 +793,46 @@ def test_eht_all_links_rejected(dev, apdev, params):
# connects.
wpas.wait_connected(timeout=15)
def test_eht_connect_invalid_link(dev, apdev, params):
"""EHT MLD AP where one link is incorrectly configured and rejected by mac80211"""
with HWSimRadio(use_mlo=True) as (hapd_radio, hapd_iface), \
HWSimRadio(use_mlo=True) as (wpas_radio, wpas_iface):
wpas = WpaSupplicant(global_iface='/tmp/wpas-wlan5')
wpas.interface_add(wpas_iface)
ssid = "mld_ap"
passphrase = 'qwertyuiop'
ssid = "mld_ap"
passphrase = 'qwertyuiop'
link_params = eht_mld_ap_wpa2_params(ssid, passphrase, mfp="2",
key_mgmt="SAE", pwe='2')
link_params['channel'] = '1'
link_params['bssid'] = '00:11:22:33:44:01'
hapd0 = eht_mld_enable_ap(hapd_iface, link_params)
link_params['channel'] = '6'
link_params['bssid'] = '00:11:22:33:44:02'
hapd1 = eht_mld_enable_ap(hapd_iface, link_params)
# We scan for both APs, then try to connect to link 0, but only the
# second attempt will work if mac80211 rejects the second link.
wpas.set("mld_connect_bssid_pref", "00:11:22:33:44:01")
wpas.set("sae_pwe", "1")
with fail_test(wpas, 1, "assoc;wpa_driver_nl80211_associate",
2, "link;wpa_driver_nl80211_associate"):
wpas.connect(ssid, sae_password=passphrase, ieee80211w="2",
key_mgmt="SAE", scan_freq="2412")
eht_verify_status(wpas, hapd0, 2412, 20, is_ht=True, mld=True,
valid_links=1, active_links=1)
out = run_tshark(os.path.join(params['logdir'], 'hwsim0.pcapng'),
'wlan.fc.type_subtype == 0x0000 && wlan.ext_tag.data == 00:01:09:%s:00:00' % wpas.own_addr(),
display=['frame.number'])
if not out.splitlines():
raise Exception('Association request send by mac80211 had unexpected ML element content (probably it contained a second link)')
def test_eht_mld_link_removal(dev, apdev):
"""EHT MLD with two links. Links removed during association"""