diff options
| author | Veerendranath Jakkam | 2024-09-04 08:39:17 +0530 |
|---|---|---|
| committer | Johannes Berg | 2024-09-06 12:56:33 +0200 |
| commit | 450732abad6a75ff5a896a306be238123379e6db (patch) | |
| tree | ea15328205f888a43c0bd16d3dca495d57d583f2 /net/wireless | |
| parent | bff93c89ab19886e17f0a86ea59f2e37141f2ab6 (diff) | |
wifi: cfg80211: avoid overriding direct/MBSSID BSS with per-STA profile BSS
Avoid overriding BSS information generated from MBSSID or direct source
with BSS information generated from per-STA profile source to avoid
losing actual signal strength and information elements such as RNR and
Basic ML elements.
Signed-off-by: Veerendranath Jakkam <quic_vjakkam@quicinc.com>
Link: https://patch.msgid.link/20240904030917.3602369-4-quic_vjakkam@quicinc.com
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/scan.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/net/wireless/scan.c b/net/wireless/scan.c index c1417f7cd029..59a90bf3c0d6 100644 --- a/net/wireless/scan.c +++ b/net/wireless/scan.c @@ -2905,6 +2905,9 @@ cfg80211_parse_ml_elem_sta_data(struct wiphy *wiphy, struct element *reporter_rnr = NULL; struct ieee80211_multi_link_elem *ml_elem; struct cfg80211_mle *mle; + const struct element *ssid_elem; + const u8 *ssid = NULL; + size_t ssid_len = 0; u16 control; u8 ml_common_len; u8 *new_ie = NULL; @@ -2959,6 +2962,13 @@ cfg80211_parse_ml_elem_sta_data(struct wiphy *wiphy, bss_change_count, gfp); + ssid_elem = cfg80211_find_elem(WLAN_EID_SSID, tx_data->ie, + tx_data->ielen); + if (ssid_elem) { + ssid = ssid_elem->data; + ssid_len = ssid_elem->datalen; + } + for (i = 0; i < ARRAY_SIZE(mle->sta_prof) && mle->sta_prof[i]; i++) { const struct ieee80211_neighbor_ap_info *ap_info; enum nl80211_band band; @@ -3040,6 +3050,23 @@ cfg80211_parse_ml_elem_sta_data(struct wiphy *wiphy, freq = ieee80211_channel_to_freq_khz(ap_info->channel, band); data.channel = ieee80211_get_channel_khz(wiphy, freq); + /* Skip if BSS entry generated from MBSSID or DIRECT source + * frame data available already. + */ + bss = cfg80211_get_bss(wiphy, data.channel, data.bssid, ssid, + ssid_len, IEEE80211_BSS_TYPE_ANY, + IEEE80211_PRIVACY_ANY); + if (bss) { + struct cfg80211_internal_bss *ibss = bss_from_pub(bss); + + if (data.capability == bss->capability && + ibss->bss_source != BSS_SOURCE_STA_PROFILE) { + cfg80211_put_bss(wiphy, bss); + continue; + } + cfg80211_put_bss(wiphy, bss); + } + if (use_for == NL80211_BSS_USE_FOR_MLD_LINK && !(wiphy->flags & WIPHY_FLAG_SUPPORTS_NSTR_NONPRIMARY)) { use_for = 0; |