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-rw-r--r--include/net/mac80211.h10
-rw-r--r--net/mac80211/ieee80211.c73
-rw-r--r--net/mac80211/ieee80211_i.h6
-rw-r--r--net/mac80211/ieee80211_sta.c33
4 files changed, 75 insertions, 47 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 48428a6b9109..5174eaa89500 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -178,11 +178,13 @@ struct ieee80211_low_level_stats {
* also implies a change in the AID.
* @BSS_CHANGED_ERP_CTS_PROT: CTS protection changed
* @BSS_CHANGED_ERP_PREAMBLE: preamble changed
+ * @BSS_CHANGED_HT: 802.11n parameters changed
*/
enum ieee80211_bss_change {
BSS_CHANGED_ASSOC = 1<<0,
BSS_CHANGED_ERP_CTS_PROT = 1<<1,
BSS_CHANGED_ERP_PREAMBLE = 1<<2,
+ BSS_CHANGED_HT = 1<<4,
};
/**
@@ -195,6 +197,9 @@ enum ieee80211_bss_change {
* @aid: association ID number, valid only when @assoc is true
* @use_cts_prot: use CTS protection
* @use_short_preamble: use 802.11b short preamble
+ * @assoc_ht: association in HT mode
+ * @ht_conf: ht capabilities
+ * @ht_bss_conf: ht extended capabilities
*/
struct ieee80211_bss_conf {
/* association related data */
@@ -203,6 +208,10 @@ struct ieee80211_bss_conf {
/* erp related data */
bool use_cts_prot;
bool use_short_preamble;
+ /* ht related data */
+ bool assoc_ht;
+ struct ieee80211_ht_info *ht_conf;
+ struct ieee80211_ht_bss_info *ht_bss_conf;
};
/**
@@ -1132,7 +1141,6 @@ struct ieee80211_ops {
struct sk_buff *skb,
struct ieee80211_tx_control *control);
int (*tx_last_beacon)(struct ieee80211_hw *hw);
- int (*conf_ht)(struct ieee80211_hw *hw, struct ieee80211_conf *conf);
int (*ampdu_action)(struct ieee80211_hw *hw,
enum ieee80211_ampdu_mlme_action action,
const u8 *addr, u16 tid, u16 *ssn);
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index aaa5480e204a..5d30dd463f22 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -1046,54 +1046,69 @@ int ieee80211_hw_config(struct ieee80211_local *local)
}
/**
- * ieee80211_hw_config_ht should be used only after legacy configuration
- * has been determined, as ht configuration depends upon the hardware's
- * HT abilities for a _specific_ band.
+ * ieee80211_handle_ht should be used only after legacy configuration
+ * has been determined namely band, as ht configuration depends upon
+ * the hardware's HT abilities for a _specific_ band.
*/
-int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
+u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
struct ieee80211_ht_info *req_ht_cap,
struct ieee80211_ht_bss_info *req_bss_cap)
{
struct ieee80211_conf *conf = &local->hw.conf;
struct ieee80211_supported_band *sband;
+ struct ieee80211_ht_info ht_conf;
+ struct ieee80211_ht_bss_info ht_bss_conf;
int i;
+ u32 changed = 0;
sband = local->hw.wiphy->bands[conf->channel->band];
/* HT is not supported */
if (!sband->ht_info.ht_supported) {
conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
- return -EOPNOTSUPP;
+ return 0;
}
- /* disable HT */
- if (!enable_ht) {
- conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
- } else {
+ memset(&ht_conf, 0, sizeof(struct ieee80211_ht_info));
+ memset(&ht_bss_conf, 0, sizeof(struct ieee80211_ht_bss_info));
+
+ if (enable_ht) {
+ if (!(conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE))
+ changed |= BSS_CHANGED_HT;
+
conf->flags |= IEEE80211_CONF_SUPPORT_HT_MODE;
- conf->ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap;
- conf->ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS);
- conf->ht_conf.cap |=
- sband->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS;
- conf->ht_bss_conf.primary_channel =
- req_bss_cap->primary_channel;
- conf->ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
- conf->ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;
+ ht_conf.ht_supported = 1;
+
+ ht_conf.cap = req_ht_cap->cap & sband->ht_info.cap;
+ ht_conf.cap &= ~(IEEE80211_HT_CAP_MIMO_PS);
+ ht_conf.cap |= sband->ht_info.cap & IEEE80211_HT_CAP_MIMO_PS;
+
for (i = 0; i < SUPP_MCS_SET_LEN; i++)
- conf->ht_conf.supp_mcs_set[i] =
- sband->ht_info.supp_mcs_set[i] &
- req_ht_cap->supp_mcs_set[i];
-
- /* In STA mode, this gives us indication
- * to the AP's mode of operation */
- conf->ht_conf.ht_supported = 1;
- conf->ht_conf.ampdu_factor = req_ht_cap->ampdu_factor;
- conf->ht_conf.ampdu_density = req_ht_cap->ampdu_density;
+ ht_conf.supp_mcs_set[i] =
+ sband->ht_info.supp_mcs_set[i] &
+ req_ht_cap->supp_mcs_set[i];
+
+ ht_bss_conf.primary_channel = req_bss_cap->primary_channel;
+ ht_bss_conf.bss_cap = req_bss_cap->bss_cap;
+ ht_bss_conf.bss_op_mode = req_bss_cap->bss_op_mode;
+
+ ht_conf.ampdu_factor = req_ht_cap->ampdu_factor;
+ ht_conf.ampdu_density = req_ht_cap->ampdu_density;
+
+ /* if bss configuration changed store the new one */
+ if (memcmp(&conf->ht_conf, &ht_conf, sizeof(ht_conf)) ||
+ memcmp(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf))) {
+ changed |= BSS_CHANGED_HT;
+ memcpy(&conf->ht_conf, &ht_conf, sizeof(ht_conf));
+ memcpy(&conf->ht_bss_conf, &ht_bss_conf, sizeof(ht_bss_conf));
+ }
+ } else {
+ if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE)
+ changed |= BSS_CHANGED_HT;
+ conf->flags &= ~IEEE80211_CONF_SUPPORT_HT_MODE;
}
- local->ops->conf_ht(local_to_hw(local), &local->hw.conf);
-
- return 0;
+ return changed;
}
void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index 0997a0f96203..377c448a0556 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -865,9 +865,9 @@ int ieee80211_if_config(struct net_device *dev);
int ieee80211_if_config_beacon(struct net_device *dev);
void ieee80211_tx_set_protected(struct ieee80211_tx_data *tx);
void ieee80211_if_setup(struct net_device *dev);
-int ieee80211_hw_config_ht(struct ieee80211_local *local, int enable_ht,
- struct ieee80211_ht_info *req_ht_cap,
- struct ieee80211_ht_bss_info *req_bss_cap);
+u32 ieee80211_handle_ht(struct ieee80211_local *local, int enable_ht,
+ struct ieee80211_ht_info *req_ht_cap,
+ struct ieee80211_ht_bss_info *req_bss_cap);
/* ieee80211_ioctl.c */
extern const struct iw_handler_def ieee80211_iw_handler_def;
diff --git a/net/mac80211/ieee80211_sta.c b/net/mac80211/ieee80211_sta.c
index 1ee07f0b02e2..0e936233dac5 100644
--- a/net/mac80211/ieee80211_sta.c
+++ b/net/mac80211/ieee80211_sta.c
@@ -493,6 +493,7 @@ static void ieee80211_set_associated(struct net_device *dev,
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
+ struct ieee80211_conf *conf = &local_to_hw(local)->conf;
union iwreq_data wrqu;
u32 changed = BSS_CHANGED_ASSOC;
@@ -505,7 +506,7 @@ static void ieee80211_set_associated(struct net_device *dev,
return;
bss = ieee80211_rx_bss_get(dev, ifsta->bssid,
- local->hw.conf.channel->center_freq,
+ conf->channel->center_freq,
ifsta->ssid, ifsta->ssid_len);
if (bss) {
if (bss->has_erp_value)
@@ -514,6 +515,13 @@ static void ieee80211_set_associated(struct net_device *dev,
ieee80211_rx_bss_put(dev, bss);
}
+ if (conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
+ changed |= BSS_CHANGED_HT;
+ sdata->bss_conf.assoc_ht = 1;
+ sdata->bss_conf.ht_conf = &conf->ht_conf;
+ sdata->bss_conf.ht_bss_conf = &conf->ht_bss_conf;
+ }
+
netif_carrier_on(dev);
ifsta->flags |= IEEE80211_STA_PREV_BSSID_SET;
memcpy(ifsta->prev_bssid, sdata->u.sta.bssid, ETH_ALEN);
@@ -524,6 +532,11 @@ static void ieee80211_set_associated(struct net_device *dev,
ifsta->flags &= ~IEEE80211_STA_ASSOCIATED;
netif_carrier_off(dev);
ieee80211_reset_erp_info(dev);
+
+ sdata->bss_conf.assoc_ht = 0;
+ sdata->bss_conf.ht_conf = NULL;
+ sdata->bss_conf.ht_bss_conf = NULL;
+
memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
}
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
@@ -1999,17 +2012,15 @@ static void ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata,
else
sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
- if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
- local->ops->conf_ht) {
+ if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param) {
struct ieee80211_ht_bss_info bss_info;
-
ieee80211_ht_cap_ie_to_ht_info(
(struct ieee80211_ht_cap *)
elems.ht_cap_elem, &sta->ht_info);
ieee80211_ht_addt_info_ie_to_ht_bss_info(
(struct ieee80211_ht_addt_info *)
elems.ht_info_elem, &bss_info);
- ieee80211_hw_config_ht(local, 1, &sta->ht_info, &bss_info);
+ ieee80211_handle_ht(local, 1, &sta->ht_info, &bss_info);
}
rate_control_rate_init(sta, local);
@@ -2760,20 +2771,14 @@ static void ieee80211_rx_mgmt_beacon(struct net_device *dev,
changed |= ieee80211_handle_erp_ie(sdata, elems.erp_info[0]);
if (elems.ht_cap_elem && elems.ht_info_elem &&
- elems.wmm_param && local->ops->conf_ht &&
- conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
+ elems.wmm_param && conf->flags & IEEE80211_CONF_SUPPORT_HT_MODE) {
struct ieee80211_ht_bss_info bss_info;
ieee80211_ht_addt_info_ie_to_ht_bss_info(
(struct ieee80211_ht_addt_info *)
elems.ht_info_elem, &bss_info);
- /* check if AP changed bss inforamation */
- if ((conf->ht_bss_conf.primary_channel !=
- bss_info.primary_channel) ||
- (conf->ht_bss_conf.bss_cap != bss_info.bss_cap) ||
- (conf->ht_bss_conf.bss_op_mode != bss_info.bss_op_mode))
- ieee80211_hw_config_ht(local, 1, &conf->ht_conf,
- &bss_info);
+ changed |= ieee80211_handle_ht(local, 1, &conf->ht_conf,
+ &bss_info);
}
if (elems.wmm_param && (ifsta->flags & IEEE80211_STA_WMM_ENABLED)) {
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.