mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-11-16 18:57:31 +02:00
mac80211: improve ad-hoc multicast rate handling
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@24105 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd
parent
705a3eff36
commit
56216b699f
157
package/mac80211/patches/550-cfg80211_validate_mcast_rate.patch
Normal file
157
package/mac80211/patches/550-cfg80211_validate_mcast_rate.patch
Normal file
@ -0,0 +1,157 @@
|
||||
--- a/include/net/cfg80211.h
|
||||
+++ b/include/net/cfg80211.h
|
||||
@@ -924,7 +924,7 @@ struct cfg80211_disassoc_request {
|
||||
* @privacy: this is a protected network, keys will be configured
|
||||
* after joining
|
||||
* @basic_rates: bitmap of basic rates to use when creating the IBSS
|
||||
- * @mcast_rate: multicast tx rate (in 100 kbps)
|
||||
+ * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
|
||||
*/
|
||||
struct cfg80211_ibss_params {
|
||||
u8 *ssid;
|
||||
@@ -936,7 +936,7 @@ struct cfg80211_ibss_params {
|
||||
u32 basic_rates;
|
||||
bool channel_fixed;
|
||||
bool privacy;
|
||||
- int mcast_rate;
|
||||
+ int mcast_rate[IEEE80211_NUM_BANDS];
|
||||
};
|
||||
|
||||
/**
|
||||
--- a/include/net/mac80211.h
|
||||
+++ b/include/net/mac80211.h
|
||||
@@ -219,7 +219,7 @@ enum ieee80211_bss_change {
|
||||
* @basic_rates: bitmap of basic rates, each bit stands for an
|
||||
* index into the rate table configured by the driver in
|
||||
* the current band.
|
||||
- * @mcast_rate: multicast rate for AP and Ad-Hoc (in 100 kbps)
|
||||
+ * @mcast_rate: per-band multicast rate index + 1 (0: disabled)
|
||||
* @bssid: The BSSID for this BSS
|
||||
* @enable_beacon: whether beaconing should be enabled or not
|
||||
* @channel_type: Channel type for this BSS -- the hardware might be
|
||||
@@ -259,7 +259,7 @@ struct ieee80211_bss_conf {
|
||||
u16 assoc_capability;
|
||||
u64 timestamp;
|
||||
u32 basic_rates;
|
||||
- u32 mcast_rate;
|
||||
+ int mcast_rate[IEEE80211_NUM_BANDS];
|
||||
u16 ht_operation_mode;
|
||||
s32 cqm_rssi_thold;
|
||||
u32 cqm_rssi_hyst;
|
||||
--- a/net/mac80211/ibss.c
|
||||
+++ b/net/mac80211/ibss.c
|
||||
@@ -915,7 +915,8 @@ int ieee80211_ibss_join(struct ieee80211
|
||||
|
||||
sdata->u.ibss.privacy = params->privacy;
|
||||
sdata->u.ibss.basic_rates = params->basic_rates;
|
||||
- sdata->vif.bss_conf.mcast_rate = params->mcast_rate;
|
||||
+ memcpy(sdata->vif.bss_conf.mcast_rate, params->mcast_rate,
|
||||
+ sizeof(params->mcast_rate));
|
||||
|
||||
sdata->vif.bss_conf.beacon_int = params->beacon_interval;
|
||||
|
||||
--- a/net/mac80211/rate.c
|
||||
+++ b/net/mac80211/rate.c
|
||||
@@ -211,20 +211,11 @@ static bool rc_no_data_or_no_ack(struct
|
||||
return (info->flags & IEEE80211_TX_CTL_NO_ACK) || !ieee80211_is_data(fc);
|
||||
}
|
||||
|
||||
-static void rc_send_low_broadcast(s8 *idx, u32 basic_rates, u32 mcast_rate,
|
||||
+static void rc_send_low_broadcast(s8 *idx, u32 basic_rates,
|
||||
struct ieee80211_supported_band *sband)
|
||||
{
|
||||
u8 i;
|
||||
|
||||
- if (mcast_rate) {
|
||||
- for (i = 0; i < sband->n_bitrates; i++) {
|
||||
- if (sband->bitrates[i].bitrate == mcast_rate) {
|
||||
- *idx = i;
|
||||
- return;
|
||||
- }
|
||||
- }
|
||||
- }
|
||||
-
|
||||
if (basic_rates == 0)
|
||||
return; /* assume basic rates unknown and accept rate */
|
||||
if (*idx < 0)
|
||||
@@ -247,17 +238,25 @@ bool rate_control_send_low(struct ieee80
|
||||
struct ieee80211_tx_rate_control *txrc)
|
||||
{
|
||||
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb);
|
||||
+ struct ieee80211_supported_band *sband = txrc->sband;
|
||||
+ int mcast_rate;
|
||||
|
||||
if (!sta || !priv_sta || rc_no_data_or_no_ack(txrc)) {
|
||||
info->control.rates[0].idx = rate_lowest_index(txrc->sband, sta);
|
||||
info->control.rates[0].count =
|
||||
(info->flags & IEEE80211_TX_CTL_NO_ACK) ?
|
||||
1 : txrc->hw->max_rate_tries;
|
||||
- if (!sta && txrc->bss)
|
||||
+ if (!sta && txrc->bss) {
|
||||
+ mcast_rate = txrc->bss_conf->mcast_rate[sband->band];
|
||||
+ if (mcast_rate > 0) {
|
||||
+ info->control.rates[0].idx = mcast_rate - 1;
|
||||
+ return true;
|
||||
+ }
|
||||
+
|
||||
rc_send_low_broadcast(&info->control.rates[0].idx,
|
||||
txrc->bss_conf->basic_rates,
|
||||
- txrc->bss_conf->mcast_rate,
|
||||
- txrc->sband);
|
||||
+ sband);
|
||||
+ }
|
||||
return true;
|
||||
}
|
||||
return false;
|
||||
--- a/net/wireless/nl80211.c
|
||||
+++ b/net/wireless/nl80211.c
|
||||
@@ -3600,6 +3600,34 @@ static int nl80211_disassociate(struct s
|
||||
local_state_change);
|
||||
}
|
||||
|
||||
+static bool
|
||||
+nl80211_parse_mcast_rate(struct cfg80211_registered_device *rdev,
|
||||
+ int mcast_rate[IEEE80211_NUM_BANDS],
|
||||
+ int rateval)
|
||||
+{
|
||||
+ struct wiphy *wiphy = &rdev->wiphy;
|
||||
+ bool found = false;
|
||||
+ int band, i;
|
||||
+
|
||||
+ for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
|
||||
+ struct ieee80211_supported_band *sband;
|
||||
+
|
||||
+ sband = wiphy->bands[band];
|
||||
+ if (!sband)
|
||||
+ continue;
|
||||
+
|
||||
+ for (i = 0; i < sband->n_bitrates; i++) {
|
||||
+ if (sband->bitrates[i].bitrate == rateval) {
|
||||
+ mcast_rate[band] = i + 1;
|
||||
+ found = true;
|
||||
+ break;
|
||||
+ }
|
||||
+ }
|
||||
+ }
|
||||
+
|
||||
+ return found;
|
||||
+}
|
||||
+
|
||||
static int nl80211_join_ibss(struct sk_buff *skb, struct genl_info *info)
|
||||
{
|
||||
struct cfg80211_registered_device *rdev = info->user_ptr[0];
|
||||
@@ -3683,9 +3711,11 @@ static int nl80211_join_ibss(struct sk_b
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
- if (info->attrs[NL80211_ATTR_MCAST_RATE])
|
||||
- ibss.mcast_rate =
|
||||
- nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE]);
|
||||
+
|
||||
+ if (info->attrs[NL80211_ATTR_MCAST_RATE] &&
|
||||
+ !nl80211_parse_mcast_rate(rdev, ibss.mcast_rate,
|
||||
+ nla_get_u32(info->attrs[NL80211_ATTR_MCAST_RATE])))
|
||||
+ return -EINVAL;
|
||||
|
||||
if (ibss.privacy && info->attrs[NL80211_ATTR_KEYS]) {
|
||||
connkeys = nl80211_parse_connkeys(rdev,
|
||||
Loading…
Reference in New Issue
Block a user