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-rw-r--r--net/mac80211/mlme.c119
1 files changed, 79 insertions, 40 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 72c8bea81a6c..a6ad19757bac 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -209,6 +209,7 @@ static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
channel_type = NL80211_CHAN_HT20;
if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
+ !ieee80111_cfg_override_disables_ht40(sdata) &&
(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
(hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
@@ -1120,6 +1121,8 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
/* on the next assoc, re-program HT parameters */
sdata->ht_opmode_valid = false;
+ memset(&ifmgd->ht_capa, 0, sizeof(ifmgd->ht_capa));
+ memset(&ifmgd->ht_capa_mask, 0, sizeof(ifmgd->ht_capa_mask));
local->power_constr_level = 0;
@@ -1359,9 +1362,6 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
ieee80211_set_disassoc(sdata, true, true);
mutex_unlock(&ifmgd->mtx);
- mutex_lock(&local->mtx);
- ieee80211_recalc_idle(local);
- mutex_unlock(&local->mtx);
/*
* must be outside lock due to cfg80211,
* but that's not a problem.
@@ -1370,6 +1370,10 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
IEEE80211_STYPE_DEAUTH,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
NULL, true);
+
+ mutex_lock(&local->mtx);
+ ieee80211_recalc_idle(local);
+ mutex_unlock(&local->mtx);
}
void ieee80211_beacon_connection_loss_work(struct work_struct *work)
@@ -1468,6 +1472,47 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
return RX_MGMT_CFG80211_DISASSOC;
}
+static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
+ u8 *supp_rates, unsigned int supp_rates_len,
+ u32 *rates, u32 *basic_rates,
+ bool *have_higher_than_11mbit,
+ int *min_rate, int *min_rate_index)
+{
+ int i, j;
+
+ for (i = 0; i < supp_rates_len; i++) {
+ int rate = (supp_rates[i] & 0x7f) * 5;
+ bool is_basic = !!(supp_rates[i] & 0x80);
+
+ if (rate > 110)
+ *have_higher_than_11mbit = true;
+
+ /*
+ * BSS_MEMBERSHIP_SELECTOR_HT_PHY is defined in 802.11n-2009
+ * 7.3.2.2 as a magic value instead of a rate. Hence, skip it.
+ *
+ * Note: Even through the membership selector and the basic
+ * rate flag share the same bit, they are not exactly
+ * the same.
+ */
+ if (!!(supp_rates[i] & 0x80) &&
+ (supp_rates[i] & 0x7f) == BSS_MEMBERSHIP_SELECTOR_HT_PHY)
+ continue;
+
+ for (j = 0; j < sband->n_bitrates; j++) {
+ if (sband->bitrates[j].bitrate == rate) {
+ *rates |= BIT(j);
+ if (is_basic)
+ *basic_rates |= BIT(j);
+ if (rate < *min_rate) {
+ *min_rate = rate;
+ *min_rate_index = j;
+ }
+ break;
+ }
+ }
+ }
+}
static bool ieee80211_assoc_success(struct ieee80211_work *wk,
struct ieee80211_mgmt *mgmt, size_t len)
@@ -1484,9 +1529,10 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk,
struct ieee802_11_elems elems;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
u32 changed = 0;
- int i, j, err;
+ 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 */
@@ -1533,7 +1579,6 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk,
set_sta_flag(sta, WLAN_STA_AUTH);
set_sta_flag(sta, WLAN_STA_ASSOC);
- set_sta_flag(sta, WLAN_STA_ASSOC_AP);
if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT))
set_sta_flag(sta, WLAN_STA_AUTHORIZED);
@@ -1541,38 +1586,23 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk,
basic_rates = 0;
sband = local->hw.wiphy->bands[wk->chan->band];
- for (i = 0; i < elems.supp_rates_len; i++) {
- int rate = (elems.supp_rates[i] & 0x7f) * 5;
- bool is_basic = !!(elems.supp_rates[i] & 0x80);
+ ieee80211_get_rates(sband, elems.supp_rates, elems.supp_rates_len,
+ &rates, &basic_rates, &have_higher_than_11mbit,
+ &min_rate, &min_rate_index);
- if (rate > 110)
- have_higher_than_11mbit = true;
+ 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);
- for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate) {
- rates |= BIT(j);
- if (is_basic)
- basic_rates |= BIT(j);
- break;
- }
- }
- }
-
- for (i = 0; i < elems.ext_supp_rates_len; i++) {
- int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
- bool is_basic = !!(elems.ext_supp_rates[i] & 0x80);
-
- if (rate > 110)
- have_higher_than_11mbit = true;
-
- for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate) {
- rates |= BIT(j);
- if (is_basic)
- basic_rates |= BIT(j);
- break;
- }
- }
+ /*
+ * 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[wk->chan->band] = rates;
@@ -1586,7 +1616,7 @@ static bool ieee80211_assoc_success(struct ieee80211_work *wk,
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(sband,
+ ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
elems.ht_cap_elem, &sta->sta.ht_cap);
ap_ht_cap_flags = sta->sta.ht_cap.cap;
@@ -1955,7 +1985,7 @@ static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
- ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
+ ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
elems.ht_cap_elem, &sta->sta.ht_cap);
ap_ht_cap_flags = sta->sta.ht_cap.cap;
@@ -2109,9 +2139,6 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
ieee80211_set_disassoc(sdata, true, true);
mutex_unlock(&ifmgd->mtx);
- mutex_lock(&local->mtx);
- ieee80211_recalc_idle(local);
- mutex_unlock(&local->mtx);
/*
* must be outside lock due to cfg80211,
* but that's not a problem.
@@ -2119,6 +2146,11 @@ static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
ieee80211_send_deauth_disassoc(sdata, bssid,
IEEE80211_STYPE_DEAUTH, reason,
NULL, true);
+
+ mutex_lock(&local->mtx);
+ ieee80211_recalc_idle(local);
+ mutex_unlock(&local->mtx);
+
mutex_lock(&ifmgd->mtx);
}
@@ -2613,6 +2645,13 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+ if (req->flags & ASSOC_REQ_DISABLE_HT)
+ ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
+
+ memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa));
+ memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask,
+ sizeof(ifmgd->ht_capa_mask));
+
if (req->ie && req->ie_len) {
memcpy(wk->ie, req->ie, req->ie_len);
wk->ie_len = req->ie_len;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-19 07:43:26 +0100