wifi: cfg80211: parse all ML elements in an ML probe response
A probe response from a transmitting AP in an Multi-BSSID setup will contain more than one Multi-Link element. Most likely, only one of these elements contains per-STA profiles. Fixes: 2481b5da9c6b ("wifi: cfg80211: handle BSS data contained in ML probe responses") Signed-off-by: Benjamin Berg <benjamin.berg@intel.com> Signed-off-by: Miri Korenblit <miriam.rachel.korenblit@intel.com> Link: https://msgid.link/20240102213313.6635eb152735.I94289002d4a2f7b6b44dfa428344854e37b0b29c@changeid Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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@ -2617,10 +2617,12 @@ cfg80211_tbtt_info_for_mld_ap(const u8 *ie, size_t ielen, u8 mld_id, u8 link_id,
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return 0;
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}
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static void cfg80211_parse_ml_sta_data(struct wiphy *wiphy,
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struct cfg80211_inform_single_bss_data *tx_data,
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struct cfg80211_bss *source_bss,
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gfp_t gfp)
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static void
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cfg80211_parse_ml_elem_sta_data(struct wiphy *wiphy,
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struct cfg80211_inform_single_bss_data *tx_data,
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struct cfg80211_bss *source_bss,
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const struct element *elem,
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gfp_t gfp)
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{
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struct cfg80211_inform_single_bss_data data = {
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.drv_data = tx_data->drv_data,
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@ -2629,7 +2631,6 @@ static void cfg80211_parse_ml_sta_data(struct wiphy *wiphy,
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.bss_source = BSS_SOURCE_STA_PROFILE,
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};
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struct ieee80211_multi_link_elem *ml_elem;
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const struct element *elem;
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struct cfg80211_mle *mle;
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u16 control;
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u8 ml_common_len;
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@ -2640,15 +2641,7 @@ static void cfg80211_parse_ml_sta_data(struct wiphy *wiphy,
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const u8 *pos;
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u8 i;
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if (!source_bss)
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return;
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if (tx_data->ftype != CFG80211_BSS_FTYPE_PRESP)
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return;
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elem = cfg80211_find_ext_elem(WLAN_EID_EXT_EHT_MULTI_LINK,
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tx_data->ie, tx_data->ielen);
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if (!elem || !ieee80211_mle_size_ok(elem->data + 1, elem->datalen - 1))
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if (!ieee80211_mle_size_ok(elem->data + 1, elem->datalen - 1))
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return;
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ml_elem = (void *)elem->data + 1;
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@ -2823,6 +2816,25 @@ out:
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kfree(mle);
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}
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static void cfg80211_parse_ml_sta_data(struct wiphy *wiphy,
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struct cfg80211_inform_single_bss_data *tx_data,
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struct cfg80211_bss *source_bss,
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gfp_t gfp)
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{
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const struct element *elem;
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if (!source_bss)
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return;
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if (tx_data->ftype != CFG80211_BSS_FTYPE_PRESP)
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return;
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for_each_element_extid(elem, WLAN_EID_EXT_EHT_MULTI_LINK,
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tx_data->ie, tx_data->ielen)
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cfg80211_parse_ml_elem_sta_data(wiphy, tx_data, source_bss,
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elem, gfp);
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}
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struct cfg80211_bss *
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cfg80211_inform_bss_data(struct wiphy *wiphy,
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struct cfg80211_inform_bss *data,
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