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wifi: cfg80211: do not scan disabled links on 6GHz

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If a link is disabled on 6GHz, we should not send a probe request on the
channel to resolve it. Simply skip such RNR entries so that the link is
ignored.

Userspace can still see the link in the RNR and may generate an ML probe
request in order to associate to the (currently) disabled link.

Signed-off-by: Benjamin Berg <benjamin.berg@intel.com>
Signed-off-by: Gregory Greenman <gregory.greenman@intel.com>
Link: https://lore.kernel.org/r/20230618214436.4f7384006471.Iff8f1081e76a298bd25f9468abb3a586372cddaa@changeid
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Benjamin Berg 2023-06-18 21:49:54 +03:00 • committed by Johannes Berg
parent 2481b5da9c
commit a0ed50112b
1 changed files with 7 additions and 0 deletions
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7
net/wireless/scan.c
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@ -587,6 +587,13 @@ static int cfg80211_parse_ap_info(struct cfg80211_colocated_ap *entry,
entry->short_ssid_valid = true;
bss_params = tbtt_info->bss_params;
/* Ignore disabled links */
if (length >= offsetofend(typeof(*tbtt_info), mld_params)) {
if (le16_get_bits(tbtt_info->mld_params.params,
IEEE80211_RNR_MLD_PARAMS_DISABLED_LINK))
return -EINVAL;
}
} else {
struct ieee80211_tbtt_info_7_8_9 *tbtt_info = (void *)pos;