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Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r--net/mac80211/mlme.c97
1 files changed, 49 insertions, 48 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 81e0124e68c..39c13939008 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -1344,12 +1344,6 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
bss_conf->dtim_period = 0;
bss_conf->assoc = 1;
- /*
- * For now just always ask the driver to update the basic rateset
- * when we have associated, we aren't checking whether it actually
- * changed or not.
- */
- bss_info_changed |= BSS_CHANGED_BASIC_RATES;
/* Tell the driver to monitor connection quality (if supported) */
if (sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI &&
@@ -2001,15 +1995,12 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
struct ieee80211_supported_band *sband;
struct sta_info *sta;
u8 *pos;
- u32 rates, basic_rates;
u16 capab_info, aid;
struct ieee802_11_elems elems;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
u32 changed = 0;
int err;
- bool have_higher_than_11mbit = false;
u16 ap_ht_cap_flags;
- int min_rate = INT_MAX, min_rate_index = -1;
/* AssocResp and ReassocResp have identical structure */
@@ -2054,39 +2045,8 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata,
return false;
}
- rates = 0;
- basic_rates = 0;
sband = local->hw.wiphy->bands[local->oper_channel->band];
- ieee80211_get_rates(sband, elems.supp_rates, elems.supp_rates_len,
- &rates, &basic_rates, &have_higher_than_11mbit,
- &min_rate, &min_rate_index);
-
- ieee80211_get_rates(sband, elems.ext_supp_rates,
- elems.ext_supp_rates_len, &rates, &basic_rates,
- &have_higher_than_11mbit,
- &min_rate, &min_rate_index);
-
- /*
- * some buggy APs don't advertise basic_rates. use the lowest
- * supported rate instead.
- */
- if (unlikely(!basic_rates) && min_rate_index >= 0) {
- printk(KERN_DEBUG "%s: No basic rates in AssocResp. "
- "Using min supported rate instead.\n", sdata->name);
- basic_rates = BIT(min_rate_index);
- }
-
- sta->sta.supp_rates[local->oper_channel->band] = rates;
- sdata->vif.bss_conf.basic_rates = basic_rates;
-
- /* cf. IEEE 802.11 9.2.12 */
- if (local->oper_channel->band == IEEE80211_BAND_2GHZ &&
- have_higher_than_11mbit)
- sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
- else
- sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
-
if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
elems.ht_cap_elem, &sta->sta.ht_cap);
@@ -3090,10 +3050,11 @@ int ieee80211_max_network_latency(struct notifier_block *nb,
}
static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
- struct cfg80211_bss *bss, bool assoc)
+ struct cfg80211_bss *cbss, bool assoc)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
+ struct ieee80211_bss *bss = (void *)cbss->priv;
struct sta_info *sta;
bool have_sta = false;
int err;
@@ -3103,12 +3064,12 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
if (assoc) {
rcu_read_lock();
- have_sta = sta_info_get(sdata, bss->bssid);
+ have_sta = sta_info_get(sdata, cbss->bssid);
rcu_read_unlock();
}
if (!have_sta) {
- sta = sta_info_alloc(sdata, bss->bssid, GFP_KERNEL);
+ sta = sta_info_alloc(sdata, cbss->bssid, GFP_KERNEL);
if (!sta)
return -ENOMEM;
}
@@ -3118,13 +3079,53 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
mutex_unlock(&local->mtx);
/* switch to the right channel */
- local->oper_channel = bss->channel;
+ local->oper_channel = cbss->channel;
ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
if (!have_sta) {
- /* set BSSID - if STA already there this will be set too */
- memcpy(ifmgd->bssid, bss->bssid, ETH_ALEN);
- ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BSSID);
+ struct ieee80211_supported_band *sband;
+ u32 rates = 0, basic_rates = 0;
+ bool have_higher_than_11mbit;
+ int min_rate = INT_MAX, min_rate_index = -1;
+
+ sband = sdata->local->hw.wiphy->bands[cbss->channel->band];
+
+ ieee80211_get_rates(sband, bss->supp_rates,
+ bss->supp_rates_len,
+ &rates, &basic_rates,
+ &have_higher_than_11mbit,
+ &min_rate, &min_rate_index);
+
+ /*
+ * This used to be a workaround for basic rates missing
+ * in the association response frame. Now that we no
+ * longer use the basic rates from there, it probably
+ * doesn't happen any more, but keep the workaround so
+ * in case some *other* APs are buggy in different ways
+ * we can connect -- with a warning.
+ */
+ if (!basic_rates && min_rate_index >= 0) {
+ printk(KERN_DEBUG
+ "%s: No basic rates, using min rate instead.\n",
+ sdata->name);
+ basic_rates = BIT(min_rate_index);
+ }
+
+ sta->sta.supp_rates[cbss->channel->band] = rates;
+ sdata->vif.bss_conf.basic_rates = basic_rates;
+
+ /* cf. IEEE 802.11 9.2.12 */
+ if (local->oper_channel->band == IEEE80211_BAND_2GHZ &&
+ have_higher_than_11mbit)
+ sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
+ else
+ sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
+
+ memcpy(ifmgd->bssid, cbss->bssid, ETH_ALEN);
+
+ /* tell driver about BSSID and basic rates */
+ ieee80211_bss_info_change_notify(sdata,
+ BSS_CHANGED_BSSID | BSS_CHANGED_BASIC_RATES);
if (assoc)
sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
@@ -3138,7 +3139,7 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
return err;
}
} else
- WARN_ON_ONCE(compare_ether_addr(ifmgd->bssid, bss->bssid));
+ WARN_ON_ONCE(compare_ether_addr(ifmgd->bssid, cbss->bssid));
return 0;
}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-30 04:17:06 +0000