aboutsummaryrefslogtreecommitdiffstats
path: root/net/mac80211/mlme.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211/mlme.c')
-rw-r--r--net/mac80211/mlme.c98
1 files changed, 56 insertions, 42 deletions
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index cc9e02d79b55..21bccd849b3f 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -489,27 +489,6 @@ static int ieee80211_config_bw(struct ieee80211_sub_if_data *sdata,
/* frame sending functions */
-static int ieee80211_compatible_rates(const u8 *supp_rates, int supp_rates_len,
- struct ieee80211_supported_band *sband,
- u32 *rates)
-{
- int i, j, count;
- *rates = 0;
- count = 0;
- for (i = 0; i < supp_rates_len; i++) {
- int rate = (supp_rates[i] & 0x7F) * 5;
-
- for (j = 0; j < sband->n_bitrates; j++)
- if (sband->bitrates[j].bitrate == rate) {
- *rates |= BIT(j);
- count++;
- break;
- }
- }
-
- return count;
-}
-
static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb, u8 ap_ht_param,
struct ieee80211_supported_band *sband,
@@ -628,12 +607,12 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
struct ieee80211_mgmt *mgmt;
u8 *pos, qos_info;
size_t offset = 0, noffset;
- int i, count, rates_len, supp_rates_len;
+ int i, count, rates_len, supp_rates_len, shift;
u16 capab;
struct ieee80211_supported_band *sband;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_channel *chan;
- u32 rates = 0;
+ u32 rate_flags, rates = 0;
sdata_assert_lock(sdata);
@@ -644,8 +623,10 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
return;
}
chan = chanctx_conf->def.chan;
+ rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def);
rcu_read_unlock();
sband = local->hw.wiphy->bands[chan->band];
+ shift = ieee80211_vif_get_shift(&sdata->vif);
if (assoc_data->supp_rates_len) {
/*
@@ -654,17 +635,24 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
* in the association request (e.g. D-Link DAP 1353 in
* b-only mode)...
*/
- rates_len = ieee80211_compatible_rates(assoc_data->supp_rates,
- assoc_data->supp_rates_len,
- sband, &rates);
+ rates_len = ieee80211_parse_bitrates(&chanctx_conf->def, sband,
+ assoc_data->supp_rates,
+ assoc_data->supp_rates_len,
+ &rates);
} else {
/*
* In case AP not provide any supported rates information
* before association, we send information element(s) with
* all rates that we support.
*/
- rates = ~0;
- rates_len = sband->n_bitrates;
+ rates_len = 0;
+ for (i = 0; i < sband->n_bitrates; i++) {
+ if ((rate_flags & sband->bitrates[i].flags)
+ != rate_flags)
+ continue;
+ rates |= BIT(i);
+ rates_len++;
+ }
}
skb = alloc_skb(local->hw.extra_tx_headroom +
@@ -741,8 +729,9 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
count = 0;
for (i = 0; i < sband->n_bitrates; i++) {
if (BIT(i) & rates) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
+ int rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
+ 5 * (1 << shift));
+ *pos++ = (u8) rate;
if (++count == 8)
break;
}
@@ -755,8 +744,10 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
for (i++; i < sband->n_bitrates; i++) {
if (BIT(i) & rates) {
- int rate = sband->bitrates[i].bitrate;
- *pos++ = (u8) (rate / 5);
+ int rate;
+ rate = DIV_ROUND_UP(sband->bitrates[i].bitrate,
+ 5 * (1 << shift));
+ *pos++ = (u8) rate;
}
}
}
@@ -767,7 +758,8 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata)
*pos++ = WLAN_EID_PWR_CAPABILITY;
*pos++ = 2;
*pos++ = 0; /* min tx power */
- *pos++ = chan->max_power; /* max tx power */
+ /* max tx power */
+ *pos++ = ieee80211_chandef_max_power(&chanctx_conf->def);
/* 2. supported channels */
/* TODO: get this in reg domain format */
@@ -2443,15 +2435,16 @@ 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 *min_rate, int *min_rate_index,
+ int shift, u32 rate_flags)
{
int i, j;
for (i = 0; i < supp_rates_len; i++) {
- int rate = (supp_rates[i] & 0x7f) * 5;
+ int rate = supp_rates[i] & 0x7f;
bool is_basic = !!(supp_rates[i] & 0x80);
- if (rate > 110)
+ if ((rate * 5 * (1 << shift)) > 110)
*have_higher_than_11mbit = true;
/*
@@ -2467,12 +2460,20 @@ static void ieee80211_get_rates(struct ieee80211_supported_band *sband,
continue;
for (j = 0; j < sband->n_bitrates; j++) {
- if (sband->bitrates[j].bitrate == rate) {
+ struct ieee80211_rate *br;
+ int brate;
+
+ br = &sband->bitrates[j];
+ if ((rate_flags & br->flags) != rate_flags)
+ continue;
+
+ brate = DIV_ROUND_UP(br->bitrate, (1 << shift) * 5);
+ if (brate == rate) {
*rates |= BIT(j);
if (is_basic)
*basic_rates |= BIT(j);
- if (rate < *min_rate) {
- *min_rate = rate;
+ if ((rate * 5) < *min_rate) {
+ *min_rate = rate * 5;
*min_rate_index = j;
}
break;
@@ -3902,27 +3903,40 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata,
if (!new_sta)
return -ENOMEM;
}
-
if (new_sta) {
u32 rates = 0, basic_rates = 0;
bool have_higher_than_11mbit;
int min_rate = INT_MAX, min_rate_index = -1;
+ struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_supported_band *sband;
const struct cfg80211_bss_ies *ies;
+ int shift;
+ u32 rate_flags;
sband = local->hw.wiphy->bands[cbss->channel->band];
err = ieee80211_prep_channel(sdata, cbss);
if (err) {
sta_info_free(local, new_sta);
- return err;
+ return -EINVAL;
}
+ shift = ieee80211_vif_get_shift(&sdata->vif);
+
+ rcu_read_lock();
+ chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
+ if (WARN_ON(!chanctx_conf)) {
+ rcu_read_unlock();
+ return -EINVAL;
+ }
+ rate_flags = ieee80211_chandef_rate_flags(&chanctx_conf->def);
+ rcu_read_unlock();
ieee80211_get_rates(sband, bss->supp_rates,
bss->supp_rates_len,
&rates, &basic_rates,
&have_higher_than_11mbit,
- &min_rate, &min_rate_index);
+ &min_rate, &min_rate_index,
+ shift, rate_flags);
/*
* This used to be a workaround for basic rates missing
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.