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authorAshok Nagarajan <ashok@cozybit.com>2012-04-02 21:21:20 -0700
committerJohn W. Linville <linville@tuxdriver.com>2012-04-11 16:23:46 -0400
commit657c3e0c4147bb3d3fdd338e32b83b968b0f9d02 (patch)
tree06f4f3fb9f7a01b6eb823d2f7a7d0f76c76a28aa /net/mac80211/util.c
parentd934f7d0d6a3f8aa3049ca0692948ec59d738928 (diff)
downloadlinux-657c3e0c4147bb3d3fdd338e32b83b968b0f9d02.tar.gz
mac80211: Indicate basic rates when adding rate IEs
Basic rates are added with supported rates IE and extended supported
rates IE.

Signed-off-by: Ashok Nagarajan <ashok@cozybit.com>
Signed-off-by: Thomas Pedersen <thomas@cozybit.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/util.c')
-rw-r--r--net/mac80211/util.c18
1 files changed, 14 insertions, 4 deletions
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 471a831066dd..468a18ea1f1b 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -1683,13 +1683,15 @@ ieee80211_ht_oper_to_channel_type(struct ieee80211_ht_operation *ht_oper)
 	return channel_type;
 }
 
-int ieee80211_add_srates_ie(struct ieee80211_vif *vif, struct sk_buff *skb)
+int ieee80211_add_srates_ie(struct ieee80211_vif *vif,
+			    struct sk_buff *skb, bool need_basic)
 {
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
 	int rate;
 	u8 i, rates, *pos;
+	u32 basic_rates = vif->bss_conf.basic_rates;
 
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 	rates = sband->n_bitrates;
@@ -1703,20 +1705,25 @@ int ieee80211_add_srates_ie(struct ieee80211_vif *vif, struct sk_buff *skb)
 	*pos++ = WLAN_EID_SUPP_RATES;
 	*pos++ = rates;
 	for (i = 0; i < rates; i++) {
+		u8 basic = 0;
+		if (need_basic && basic_rates & BIT(i))
+			basic = 0x80;
 		rate = sband->bitrates[i].bitrate;
-		*pos++ = (u8) (rate / 5);
+		*pos++ = basic | (u8) (rate / 5);
 	}
 
 	return 0;
 }
 
-int ieee80211_add_ext_srates_ie(struct ieee80211_vif *vif, struct sk_buff *skb)
+int ieee80211_add_ext_srates_ie(struct ieee80211_vif *vif,
+				struct sk_buff *skb, bool need_basic)
 {
 	struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
 	struct ieee80211_local *local = sdata->local;
 	struct ieee80211_supported_band *sband;
 	int rate;
 	u8 i, exrates, *pos;
+	u32 basic_rates = vif->bss_conf.basic_rates;
 
 	sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
 	exrates = sband->n_bitrates;
@@ -1733,8 +1740,11 @@ int ieee80211_add_ext_srates_ie(struct ieee80211_vif *vif, struct sk_buff *skb)
 		*pos++ = WLAN_EID_EXT_SUPP_RATES;
 		*pos++ = exrates;
 		for (i = 8; i < sband->n_bitrates; i++) {
+			u8 basic = 0;
+			if (need_basic && basic_rates & BIT(i))
+				basic = 0x80;
 			rate = sband->bitrates[i].bitrate;
-			*pos++ = (u8) (rate / 5);
+			*pos++ = basic | (u8) (rate / 5);
 		}
 	}
 	return 0;