mirror of https://gitee.com/openkylin/linux.git
mac80211: IBSS: refactor ieee80211_rx_bss_info
Put station specific code in ieee80211_update_sta_info function. Signed-off-by: Janusz Dziedzic <janusz.dziedzic@tieto.com> Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Janusz.Dziedzic@tieto.com
Johannes Berg
parent
d66c258278
commit
8a4988d137
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@ -965,6 +965,105 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata,
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mgmt->sa, sdata->u.ibss.bssid, NULL, 0, 0, 0);
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}
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static void ieee80211_update_sta_info(struct ieee80211_sub_if_data *sdata,
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struct ieee80211_mgmt *mgmt, size_t len,
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struct ieee80211_rx_status *rx_status,
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struct ieee802_11_elems *elems,
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struct ieee80211_channel *channel)
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{
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struct sta_info *sta;
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enum ieee80211_band band = rx_status->band;
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enum nl80211_bss_scan_width scan_width;
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struct ieee80211_local *local = sdata->local;
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struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
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bool rates_updated = false;
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u32 supp_rates = 0;
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if (sdata->vif.type != NL80211_IFTYPE_ADHOC)
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return;
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if (!ether_addr_equal(mgmt->bssid, sdata->u.ibss.bssid))
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return;
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rcu_read_lock();
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sta = sta_info_get(sdata, mgmt->sa);
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if (elems->supp_rates) {
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supp_rates = ieee80211_sta_get_rates(sdata, elems,
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band, NULL);
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if (sta) {
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u32 prev_rates;
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prev_rates = sta->sta.supp_rates[band];
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/* make sure mandatory rates are always added */
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scan_width = NL80211_BSS_CHAN_WIDTH_20;
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if (rx_status->flag & RX_FLAG_5MHZ)
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scan_width = NL80211_BSS_CHAN_WIDTH_5;
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if (rx_status->flag & RX_FLAG_10MHZ)
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scan_width = NL80211_BSS_CHAN_WIDTH_10;
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sta->sta.supp_rates[band] = supp_rates |
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ieee80211_mandatory_rates(sband, scan_width);
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if (sta->sta.supp_rates[band] != prev_rates) {
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ibss_dbg(sdata,
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"updated supp_rates set for %pM based on beacon/probe_resp (0x%x -> 0x%x)\n",
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sta->sta.addr, prev_rates,
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sta->sta.supp_rates[band]);
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rates_updated = true;
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}
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} else {
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rcu_read_unlock();
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sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid,
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mgmt->sa, supp_rates);
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}
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}
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if (sta && elems->wmm_info)
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sta->sta.wme = true;
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if (sta && elems->ht_operation && elems->ht_cap_elem &&
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sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
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sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_5 &&
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sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_10) {
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/* we both use HT */
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struct ieee80211_ht_cap htcap_ie;
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struct cfg80211_chan_def chandef;
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ieee80211_ht_oper_to_chandef(channel,
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elems->ht_operation,
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&chandef);
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memcpy(&htcap_ie, elems->ht_cap_elem, sizeof(htcap_ie));
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/*
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* fall back to HT20 if we don't use or use
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* the other extension channel
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*/
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if (chandef.center_freq1 != sdata->u.ibss.chandef.center_freq1)
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htcap_ie.cap_info &=
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cpu_to_le16(~IEEE80211_HT_CAP_SUP_WIDTH_20_40);
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rates_updated |= ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
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&htcap_ie,
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sta);
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}
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if (sta && rates_updated) {
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u32 changed = IEEE80211_RC_SUPP_RATES_CHANGED;
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u8 rx_nss = sta->sta.rx_nss;
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/* Force rx_nss recalculation */
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sta->sta.rx_nss = 0;
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rate_control_rate_init(sta);
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if (sta->sta.rx_nss != rx_nss)
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changed |= IEEE80211_RC_NSS_CHANGED;
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drv_sta_rc_update(local, sdata, &sta->sta, changed);
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}
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rcu_read_unlock();
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}
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static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
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struct ieee80211_mgmt *mgmt, size_t len,
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struct ieee80211_rx_status *rx_status,
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@ -973,101 +1072,16 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
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struct ieee80211_local *local = sdata->local;
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struct cfg80211_bss *cbss;
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struct ieee80211_bss *bss;
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struct sta_info *sta;
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struct ieee80211_channel *channel;
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u64 beacon_timestamp, rx_timestamp;
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u32 supp_rates = 0;
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enum ieee80211_band band = rx_status->band;
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enum nl80211_bss_scan_width scan_width;
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struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
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bool rates_updated = false;
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channel = ieee80211_get_channel(local->hw.wiphy, rx_status->freq);
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if (!channel)
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return;
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if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
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ether_addr_equal(mgmt->bssid, sdata->u.ibss.bssid)) {
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rcu_read_lock();
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sta = sta_info_get(sdata, mgmt->sa);
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if (elems->supp_rates) {
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supp_rates = ieee80211_sta_get_rates(sdata, elems,
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band, NULL);
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if (sta) {
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u32 prev_rates;
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prev_rates = sta->sta.supp_rates[band];
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/* make sure mandatory rates are always added */
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scan_width = NL80211_BSS_CHAN_WIDTH_20;
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if (rx_status->flag & RX_FLAG_5MHZ)
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scan_width = NL80211_BSS_CHAN_WIDTH_5;
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if (rx_status->flag & RX_FLAG_10MHZ)
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scan_width = NL80211_BSS_CHAN_WIDTH_10;
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sta->sta.supp_rates[band] = supp_rates |
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ieee80211_mandatory_rates(sband,
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scan_width);
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if (sta->sta.supp_rates[band] != prev_rates) {
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ibss_dbg(sdata,
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"updated supp_rates set for %pM based on beacon/probe_resp (0x%x -> 0x%x)\n",
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sta->sta.addr, prev_rates,
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sta->sta.supp_rates[band]);
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rates_updated = true;
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}
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} else {
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rcu_read_unlock();
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sta = ieee80211_ibss_add_sta(sdata, mgmt->bssid,
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mgmt->sa, supp_rates);
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}
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}
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if (sta && elems->wmm_info)
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sta->sta.wme = true;
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if (sta && elems->ht_operation && elems->ht_cap_elem &&
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sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
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sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_5 &&
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sdata->u.ibss.chandef.width != NL80211_CHAN_WIDTH_10) {
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/* we both use HT */
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struct ieee80211_ht_cap htcap_ie;
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struct cfg80211_chan_def chandef;
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ieee80211_ht_oper_to_chandef(channel,
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elems->ht_operation,
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&chandef);
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memcpy(&htcap_ie, elems->ht_cap_elem, sizeof(htcap_ie));
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/*
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* fall back to HT20 if we don't use or use
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* the other extension channel
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*/
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if (chandef.center_freq1 !=
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sdata->u.ibss.chandef.center_freq1)
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htcap_ie.cap_info &=
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cpu_to_le16(~IEEE80211_HT_CAP_SUP_WIDTH_20_40);
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rates_updated |= ieee80211_ht_cap_ie_to_sta_ht_cap(
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sdata, sband, &htcap_ie, sta);
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}
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if (sta && rates_updated) {
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u32 changed = IEEE80211_RC_SUPP_RATES_CHANGED;
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u8 rx_nss = sta->sta.rx_nss;
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/* Force rx_nss recalculation */
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sta->sta.rx_nss = 0;
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rate_control_rate_init(sta);
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if (sta->sta.rx_nss != rx_nss)
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changed |= IEEE80211_RC_NSS_CHANGED;
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drv_sta_rc_update(local, sdata, &sta->sta, changed);
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}
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rcu_read_unlock();
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}
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ieee80211_update_sta_info(sdata, mgmt, len, rx_status, elems, channel);
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bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
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channel);
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