Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/linville/wireless-next-2.6

11 files changed, 174 insertions, 162 deletions

diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b19bd16703b2..14fccf16b80f 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -876,7 +876,7 @@ void ieee80211_rx_bss_list_deinit(struct net_device *dev);
 int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len);
 struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
 					struct sk_buff *skb, u8 *bssid,
-					u8 *addr);
+					u8 *addr, u64 supp_rates);
 int ieee80211_sta_deauthenticate(struct net_device *dev, u16 reason);
 int ieee80211_sta_disassociate(struct net_device *dev, u16 reason);
 void ieee80211_bss_info_change_notify(struct ieee80211_sub_if_data *sdata,
diff --git a/net/mac80211/main.c b/net/mac80211/main.c
index b182f018a187..5c5396edad32 100644
--- a/net/mac80211/main.c
+++ b/net/mac80211/main.c
@@ -1707,7 +1707,8 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
 
 	debugfs_hw_add(local);
 
-	local->hw.conf.beacon_int = 1000;
+	if (local->hw.conf.beacon_int < 10)
+		local->hw.conf.beacon_int = 100;
 
 	local->wstats_flags |= local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
 						  IEEE80211_HW_SIGNAL_DB |
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 7f05820dc629..55659a730dc1 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -2863,7 +2863,8 @@ static void ieee80211_rx_bss_info(struct net_device *dev,
 				       dev->name, print_mac(mac, mgmt->bssid));
 			ieee80211_sta_join_ibss(dev, &sdata->u.sta, bss);
 			ieee80211_ibss_add_sta(dev, NULL,
-					       mgmt->bssid, mgmt->sa);
+					       mgmt->bssid, mgmt->sa,
+					       BIT(rx_status->rate_idx));
 		}
 	}
 
@@ -3583,7 +3584,7 @@ static int ieee80211_sta_create_ibss(struct net_device *dev,
 	sband = local->hw.wiphy->bands[bss->band];
 
 	if (local->hw.conf.beacon_int == 0)
-		local->hw.conf.beacon_int = 10000;
+		local->hw.conf.beacon_int = 100;
 	bss->beacon_int = local->hw.conf.beacon_int;
 	bss->last_update = jiffies;
 	bss->capability = WLAN_CAPABILITY_IBSS;
@@ -4307,12 +4308,13 @@ int ieee80211_sta_set_extra_ie(struct net_device *dev, char *ie, size_t len)
 
 struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
 					struct sk_buff *skb, u8 *bssid,
-					u8 *addr)
+					u8 *addr, u64 supp_rates)
 {
 	struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 	struct sta_info *sta;
 	struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 	DECLARE_MAC_BUF(mac);
+	int band = local->hw.conf.channel->band;
 
 	/* TODO: Could consider removing the least recently used entry and
 	 * allow new one to be added. */
@@ -4324,6 +4326,9 @@ struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
 		return NULL;
 	}
 
+	if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid))
+		return NULL;
+
 	printk(KERN_DEBUG "%s: Adding new IBSS station %s (dev=%s)\n",
 	       wiphy_name(local->hw.wiphy), print_mac(mac, addr), dev->name);
 
@@ -4333,8 +4338,10 @@ struct sta_info *ieee80211_ibss_add_sta(struct net_device *dev,
 
 	set_sta_flags(sta, WLAN_STA_AUTHORIZED);
 
-	sta->supp_rates[local->hw.conf.channel->band] =
-		sdata->u.sta.supp_rates_bits[local->hw.conf.channel->band];
+	if (supp_rates)
+		sta->supp_rates[band] = supp_rates;
+	else
+		sta->supp_rates[band] = sdata->u.sta.supp_rates_bits[band];
 
 	rate_control_rate_init(sta, local);
 
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index a3643fd86af9..c32a0bcd53b7 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -67,12 +67,9 @@ static inline int should_drop_frame(struct ieee80211_rx_status *status,
 		return 1;
 	if (unlikely(skb->len < 16 + present_fcs_len + radiotap_len))
 		return 1;
-	if (((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_FTYPE)) ==
-			cpu_to_le16(IEEE80211_FTYPE_CTL)) &&
-	    ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) !=
-			cpu_to_le16(IEEE80211_STYPE_PSPOLL)) &&
-	    ((hdr->frame_control & cpu_to_le16(IEEE80211_FCTL_STYPE)) !=
-			cpu_to_le16(IEEE80211_STYPE_BACK_REQ)))
+	if (ieee80211_is_ctl(hdr->frame_control) &&
+	    !ieee80211_is_pspoll(hdr->frame_control) &&
+	    !ieee80211_is_back_req(hdr->frame_control))
 		return 1;
 	return 0;
 }
@@ -1826,8 +1823,13 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 		if (!bssid)
 			return 0;
 		if ((rx->fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_MGMT &&
-		    (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON)
+		    (rx->fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_BEACON) {
+			if (!rx->sta)
+				rx->sta = ieee80211_ibss_add_sta(sdata->dev,
+						rx->skb, bssid, hdr->addr2,
+						BIT(rx->status->rate_idx));
 			return 1;
+		}
 		else if (!ieee80211_bssid_match(bssid, sdata->u.sta.bssid)) {
 			if (!(rx->flags & IEEE80211_RX_IN_SCAN))
 				return 0;
@@ -1840,7 +1842,8 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
 			rx->flags &= ~IEEE80211_RX_RA_MATCH;
 		} else if (!rx->sta)
 			rx->sta = ieee80211_ibss_add_sta(sdata->dev, rx->skb,
-							 bssid, hdr->addr2);
+						bssid, hdr->addr2,
+						BIT(rx->status->rate_idx));
 		break;
 	case IEEE80211_IF_TYPE_MESH_POINT:
 		if (!multicast &&
@@ -2118,7 +2121,7 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 	struct sta_info *sta;
 	struct tid_ampdu_rx *tid_agg_rx;
-	u16 fc, sc;
+	u16 sc;
 	u16 mpdu_seq_num;
 	u8 ret = 0, *qc;
 	int tid;
@@ -2127,14 +2130,12 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
 	if (!sta)
 		return ret;
 
-	fc = le16_to_cpu(hdr->frame_control);
-
 	/* filter the QoS data rx stream according to
 	 * STA/TID and check if this STA/TID is on aggregation */
-	if (!WLAN_FC_IS_QOS_DATA(fc))
+	if (!ieee80211_is_data_qos(hdr->frame_control))
 		goto end_reorder;
 
-	qc = skb->data + ieee80211_get_hdrlen(fc) - QOS_CONTROL_LEN;
+	qc = ieee80211_get_qos_ctl(hdr);
 	tid = qc[0] & QOS_CONTROL_TID_MASK;
 
 	if (sta->ampdu_mlme.tid_state_rx[tid] != HT_AGG_STATE_OPERATIONAL)
@@ -2143,7 +2144,7 @@ static u8 ieee80211_rx_reorder_ampdu(struct ieee80211_local *local,
 	tid_agg_rx = sta->ampdu_mlme.tid_rx[tid];
 
 	/* null data frames are excluded */
-	if (unlikely(fc & IEEE80211_STYPE_NULLFUNC))
+	if (unlikely(ieee80211_is_nullfunc(hdr->frame_control)))
 		goto end_reorder;
 
 	/* new un-ordered ampdu frame - process it */
diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c
index a00cf1ea7719..e710243d82e2 100644
--- a/net/mac80211/tkip.c
+++ b/net/mac80211/tkip.c
@@ -64,6 +64,14 @@ static u16 tkipS(u16 val)
 	return tkip_sbox[val & 0xff] ^ swab16(tkip_sbox[val >> 8]);
 }
 
+static u8 *write_tkip_iv(u8 *pos, u16 iv16)
+{
+	*pos++ = iv16 >> 8;
+	*pos++ = ((iv16 >> 8) | 0x20) & 0x7f;
+	*pos++ = iv16 & 0xFF;
+	return pos;
+}
+
 /*
  * P1K := Phase1(TA, TK, TSC)
  * TA = transmitter address (48 bits)
@@ -71,11 +79,10 @@ static u16 tkipS(u16 val)
  * TSC = TKIP sequence counter (48 bits, only 32 msb bits used)
  * P1K: 80 bits
  */
-static void tkip_mixing_phase1(struct ieee80211_key *key, const u8 *ta,
-			       struct tkip_ctx *ctx, u32 tsc_IV32)
+static void tkip_mixing_phase1(const u8 *tk, struct tkip_ctx *ctx,
+			       const u8 *ta, u32 tsc_IV32)
 {
 	int i, j;
-	const u8 *tk = &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY];
 	u16 *p1k = ctx->p1k;
 
 	p1k[0] = tsc_IV32 & 0xFFFF;
@@ -95,12 +102,11 @@ static void tkip_mixing_phase1(struct ieee80211_key *key, const u8 *ta,
 	ctx->initialized = 1;
 }
 
-static void tkip_mixing_phase2(struct ieee80211_key *key, struct tkip_ctx *ctx,
+static void tkip_mixing_phase2(const u8 *tk, struct tkip_ctx *ctx,
 			       u16 tsc_IV16, u8 *rc4key)
 {
 	u16 ppk[6];
 	const u16 *p1k = ctx->p1k;
-	const u8 *tk = &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY];
 	int i;
 
 	ppk[0] = p1k[0];
@@ -123,12 +129,9 @@ static void tkip_mixing_phase2(struct ieee80211_key *key, struct tkip_ctx *ctx,
 	ppk[4] += ror16(ppk[3], 1);
 	ppk[5] += ror16(ppk[4], 1);
 
-	rc4key[0] = tsc_IV16 >> 8;
-	rc4key[1] = ((tsc_IV16 >> 8) | 0x20) & 0x7f;
-	rc4key[2] = tsc_IV16 & 0xFF;
-	rc4key[3] = ((ppk[5] ^ get_unaligned_le16(tk)) >> 1) & 0xFF;
+	rc4key = write_tkip_iv(rc4key, tsc_IV16);
+	*rc4key++ = ((ppk[5] ^ get_unaligned_le16(tk)) >> 1) & 0xFF;
 
-	rc4key += 4;
 	for (i = 0; i < 6; i++)
 		put_unaligned_le16(ppk[i], rc4key + 2 * i);
 }
@@ -136,51 +139,41 @@ static void tkip_mixing_phase2(struct ieee80211_key *key, struct tkip_ctx *ctx,
 /* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets
  * of the IV. Returns pointer to the octet following IVs (i.e., beginning of
  * the packet payload). */
-u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
-			   u8 iv0, u8 iv1, u8 iv2)
+u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key, u16 iv16)
 {
-	*pos++ = iv0;
-	*pos++ = iv1;
-	*pos++ = iv2;
+	pos = write_tkip_iv(pos, iv16);
 	*pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */;
 	put_unaligned_le32(key->u.tkip.tx.iv32, pos);
 	return pos + 4;
 }
 
-static void ieee80211_tkip_gen_rc4key(struct ieee80211_key *key, u8 *ta,
-			       u8 *rc4key)
-{
-	/* Calculate per-packet key */
-	if (key->u.tkip.tx.iv16 == 0 || !key->u.tkip.tx.initialized)
-		tkip_mixing_phase1(key, ta, &key->u.tkip.tx, key->u.tkip.tx.iv32);
-
-	tkip_mixing_phase2(key, &key->u.tkip.tx, key->u.tkip.tx.iv16, rc4key);
-}
-
 void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
 			struct sk_buff *skb, enum ieee80211_tkip_key_type type,
 			u8 *outkey)
 {
 	struct ieee80211_key *key = (struct ieee80211_key *)
 			container_of(keyconf, struct ieee80211_key, conf);
-	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	u8 *data = (u8 *) hdr;
-	u16 fc = le16_to_cpu(hdr->frame_control);
-	int hdr_len = ieee80211_get_hdrlen(fc);
-	u8 *ta = hdr->addr2;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+	u8 *data;
+	const u8 *tk;
+	struct tkip_ctx *ctx;
 	u16 iv16;
 	u32 iv32;
 
-	iv16 = data[hdr_len + 2] | (data[hdr_len] << 8);
-	iv32 = get_unaligned_le32(data + hdr_len + 4);
+	data = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control);
+	iv16 = data[2] | (data[0] << 8);
+	iv32 = get_unaligned_le32(&data[4]);
+
+	tk = &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY];
+	ctx = &key->u.tkip.tx;
 
 #ifdef CONFIG_TKIP_DEBUG
 	printk(KERN_DEBUG "TKIP encrypt: iv16 = 0x%04x, iv32 = 0x%08x\n",
 			iv16, iv32);
 
-	if (iv32 != key->u.tkip.tx.iv32) {
+	if (iv32 != ctx->iv32) {
 		printk(KERN_DEBUG "skb: iv32 = 0x%08x key: iv32 = 0x%08x\n",
-			iv32, key->u.tkip.tx.iv32);
+			iv32, ctx->iv32);
 		printk(KERN_DEBUG "Wrap around of iv16 in the middle of a "
 			"fragmented packet\n");
 	}
@@ -189,15 +182,15 @@ void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
 	/* Update the p1k only when the iv16 in the packet wraps around, this
 	 * might occur after the wrap around of iv16 in the key in case of
 	 * fragmented packets. */
-	if (iv16 == 0 || !key->u.tkip.tx.initialized)
-		tkip_mixing_phase1(key, ta, &key->u.tkip.tx, iv32);
+	if (iv16 == 0 || !ctx->initialized)
+		tkip_mixing_phase1(tk, ctx, hdr->addr2, iv32);
 
 	if (type == IEEE80211_TKIP_P1_KEY) {
-		memcpy(outkey, key->u.tkip.tx.p1k, sizeof(u16) * 5);
+		memcpy(outkey, ctx->p1k, sizeof(u16) * 5);
 		return;
 	}
 
-	tkip_mixing_phase2(key, &key->u.tkip.tx, iv16, outkey);
+	tkip_mixing_phase2(tk, ctx, iv16, outkey);
 }
 EXPORT_SYMBOL(ieee80211_get_tkip_key);
 
@@ -211,9 +204,16 @@ void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
 				 u8 *pos, size_t payload_len, u8 *ta)
 {
 	u8 rc4key[16];
+	struct tkip_ctx *ctx = &key->u.tkip.tx;
+	const u8 *tk = &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY];
 
-	ieee80211_tkip_gen_rc4key(key, ta, rc4key);
-	pos = ieee80211_tkip_add_iv(pos, key, rc4key[0], rc4key[1], rc4key[2]);
+	/* Calculate per-packet key */
+	if (ctx->iv16 == 0 || !ctx->initialized)
+		tkip_mixing_phase1(tk, ctx, ta, ctx->iv32);
+
+	tkip_mixing_phase2(tk, ctx, ctx->iv16, rc4key);
+
+	pos = ieee80211_tkip_add_iv(pos, key, key->u.tkip.tx.iv16);
 	ieee80211_wep_encrypt_data(tfm, rc4key, 16, pos, payload_len);
 }
 
@@ -231,6 +231,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 	u32 iv16;
 	u8 rc4key[16], keyid, *pos = payload;
 	int res;
+	const u8 *tk = &key->conf.key[ALG_TKIP_TEMP_ENCR_KEY];
 
 	if (payload_len < 12)
 		return -1;
@@ -281,7 +282,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 	if (!key->u.tkip.rx[queue].initialized ||
 	    key->u.tkip.rx[queue].iv32 != iv32) {
 		/* IV16 wrapped around - perform TKIP phase 1 */
-		tkip_mixing_phase1(key, ta, &key->u.tkip.rx[queue], iv32);
+		tkip_mixing_phase1(tk, &key->u.tkip.rx[queue], ta, iv32);
 #ifdef CONFIG_TKIP_DEBUG
 		{
 			int i;
@@ -314,7 +315,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_blkcipher *tfm,
 		}
 	}
 
-	tkip_mixing_phase2(key, &key->u.tkip.rx[queue], iv16, rc4key);
+	tkip_mixing_phase2(tk, &key->u.tkip.rx[queue], iv16, rc4key);
 #ifdef CONFIG_TKIP_DEBUG
 	{
 		int i;
diff --git a/net/mac80211/tkip.h b/net/mac80211/tkip.h
index b890427fc959..d4714383f5fc 100644
--- a/net/mac80211/tkip.h
+++ b/net/mac80211/tkip.h
@@ -13,8 +13,8 @@
 #include <linux/crypto.h>
 #include "key.h"
 
-u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key,
-			  u8 iv0, u8 iv1, u8 iv2);
+u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key, u16 iv16);
+
 void ieee80211_tkip_encrypt_data(struct crypto_blkcipher *tfm,
 				 struct ieee80211_key *key,
 				 u8 *pos, size_t payload_len, u8 *ta);
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 1ad9e664f287..195cb6dd02a0 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -660,9 +660,8 @@ ieee80211_tx_h_fragment(struct ieee80211_tx_data *tx)
 
 	/*
 	 * Warn when submitting a fragmented A-MPDU frame and drop it.
-	 * This is an error and needs to be fixed elsewhere, but when
-	 * done needs to take care of monitor interfaces (injection)
-	 * etc.
+	 * This scenario is handled in __ieee80211_tx_prepare but extra
+	 * caution taken here as fragmented ampdu may cause Tx stop.
 	 */
 	if (WARN_ON(tx->flags & IEEE80211_TX_CTL_AMPDU ||
 		    skb_get_queue_mapping(tx->skb) >=
@@ -981,7 +980,8 @@ __ieee80211_tx_prepare(struct ieee80211_tx_data *tx,
 	if (tx->flags & IEEE80211_TX_FRAGMENTED) {
 		if ((tx->flags & IEEE80211_TX_UNICAST) &&
 		    skb->len + FCS_LEN > local->fragmentation_threshold &&
-		    !local->ops->set_frag_threshold)
+		    !local->ops->set_frag_threshold &&
+		    !(info->flags & IEEE80211_TX_CTL_AMPDU))
 			tx->flags |= IEEE80211_TX_FRAGMENTED;
 		else
 			tx->flags &= ~IEEE80211_TX_FRAGMENTED;
diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index 6513bc2d2707..ce62b163b82c 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -45,38 +45,37 @@ const unsigned char bridge_tunnel_header[] __aligned(2) =
 u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
 			enum ieee80211_if_types type)
 {
-	u16 fc;
+	__le16 fc = hdr->frame_control;
 
 	 /* drop ACK/CTS frames and incorrect hdr len (ctrl) */
 	if (len < 16)
 		return NULL;
 
-	fc = le16_to_cpu(hdr->frame_control);
-
-	switch (fc & IEEE80211_FCTL_FTYPE) {
-	case IEEE80211_FTYPE_DATA:
+	if (ieee80211_is_data(fc)) {
 		if (len < 24) /* drop incorrect hdr len (data) */
 			return NULL;
-		switch (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) {
-		case IEEE80211_FCTL_TODS:
-			return hdr->addr1;
-		case (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS):
+
+		if (ieee80211_has_a4(fc))
 			return NULL;
-		case IEEE80211_FCTL_FROMDS:
+		if (ieee80211_has_tods(fc))
+			return hdr->addr1;
+		if (ieee80211_has_fromds(fc))
 			return hdr->addr2;
-		case 0:
-			return hdr->addr3;
-		}
-		break;
-	case IEEE80211_FTYPE_MGMT:
+
+		return hdr->addr3;
+	}
+
+	if (ieee80211_is_mgmt(fc)) {
 		if (len < 24) /* drop incorrect hdr len (mgmt) */
 			return NULL;
 		return hdr->addr3;
-	case IEEE80211_FTYPE_CTL:
-		if ((fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_PSPOLL)
+	}
+
+	if (ieee80211_is_ctl(fc)) {
+		if(ieee80211_is_pspoll(fc))
 			return hdr->addr1;
-		else if ((fc & IEEE80211_FCTL_STYPE) ==
-						IEEE80211_STYPE_BACK_REQ) {
+
+		if (ieee80211_is_back_req(fc)) {
 			switch (type) {
 			case IEEE80211_IF_TYPE_STA:
 				return hdr->addr2;
@@ -84,11 +83,9 @@ u8 *ieee80211_get_bssid(struct ieee80211_hdr *hdr, size_t len,
 			case IEEE80211_IF_TYPE_VLAN:
 				return hdr->addr1;
 			default:
-				return NULL;
+				break; /* fall through to the return */
 			}
 		}
-		else
-			return NULL;
 	}
 
 	return NULL;
@@ -133,14 +130,46 @@ int ieee80211_get_hdrlen(u16 fc)
 }
 EXPORT_SYMBOL(ieee80211_get_hdrlen);
 
-int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
+unsigned int ieee80211_hdrlen(__le16 fc)
+{
+	unsigned int hdrlen = 24;
+
+	if (ieee80211_is_data(fc)) {
+		if (ieee80211_has_a4(fc))
+			hdrlen = 30;
+		if (ieee80211_is_data_qos(fc))
+			hdrlen += IEEE80211_QOS_CTL_LEN;
+		goto out;
+	}
+
+	if (ieee80211_is_ctl(fc)) {
+		/*
+		 * ACK and CTS are 10 bytes, all others 16. To see how
+		 * to get this condition consider
+		 *   subtype mask:   0b0000000011110000 (0x00F0)
+		 *   ACK subtype:    0b0000000011010000 (0x00D0)
+		 *   CTS subtype:    0b0000000011000000 (0x00C0)
+		 *   bits that matter:         ^^^      (0x00E0)
+		 *   value of those: 0b0000000011000000 (0x00C0)
+		 */
+		if ((fc & cpu_to_le16(0x00E0)) == cpu_to_le16(0x00C0))
+			hdrlen = 10;
+		else
+			hdrlen = 16;
+	}
+out:
+	return hdrlen;
+}
+EXPORT_SYMBOL(ieee80211_hdrlen);
+
+unsigned int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb)
 {
-	const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *) skb->data;
-	int hdrlen;
+	const struct ieee80211_hdr *hdr = (const struct ieee80211_hdr *)skb->data;
+	unsigned int hdrlen;
 
 	if (unlikely(skb->len < 10))
 		return 0;
-	hdrlen = ieee80211_get_hdrlen(le16_to_cpu(hdr->frame_control));
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	if (unlikely(hdrlen > skb->len))
 		return 0;
 	return hdrlen;
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c
index 14a9ff10a1e9..d8c2f9688b25 100644
--- a/net/mac80211/wme.c
+++ b/net/mac80211/wme.c
@@ -105,11 +105,8 @@ static int classify80211(struct sk_buff *skb, struct Qdisc *qd)
 {
 	struct ieee80211_local *local = wdev_priv(qd->dev->ieee80211_ptr);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	unsigned short fc = le16_to_cpu(hdr->frame_control);
-	int qos;
 
-	/* see if frame is data or non data frame */
-	if (unlikely((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)) {
+	if (!ieee80211_is_data(hdr->frame_control)) {
 		/* management frames go on AC_VO queue, but are sent
 		* without QoS control fields */
 		return 0;
@@ -119,10 +116,7 @@ static int classify80211(struct sk_buff *skb, struct Qdisc *qd)
 		/* use AC from radiotap */
 	}
 
-	/* is this a QoS frame? */
-	qos = fc & IEEE80211_STYPE_QOS_DATA;
-
-	if (!qos) {
+	if (!ieee80211_is_data_qos(hdr->frame_control)) {
 		skb->priority = 0; /* required for correct WPA/11i MIC */
 		return ieee802_1d_to_ac[skb->priority];
 	}
@@ -151,7 +145,6 @@ static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
 	struct ieee80211_sched_data *q = qdisc_priv(qd);
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
-	unsigned short fc = le16_to_cpu(hdr->frame_control);
 	struct Qdisc *qdisc;
 	struct sta_info *sta;
 	int err, queue;
@@ -185,16 +178,15 @@ static int wme_qdiscop_enqueue(struct sk_buff *skb, struct Qdisc* qd)
 
 	/* now we know the 1d priority, fill in the QoS header if there is one
 	 */
-	if (WLAN_FC_IS_QOS_DATA(fc)) {
-		u8 *p = skb->data + ieee80211_get_hdrlen(fc) - 2;
+	if (ieee80211_is_data_qos(hdr->frame_control)) {
+		u8 *p = ieee80211_get_qos_ctl(hdr);
 		u8 ack_policy = 0;
 		tid = skb->priority & QOS_CONTROL_TAG1D_MASK;
 		if (local->wifi_wme_noack_test)
 			ack_policy |= QOS_CONTROL_ACK_POLICY_NOACK <<
 					QOS_CONTROL_ACK_POLICY_SHIFT;
 		/* qos header is 2 bytes, second reserved */
-		*p = ack_policy | tid;
-		p++;
+		*p++ = ack_policy | tid;
 		*p = 0;
 
 		rcu_read_lock();
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 9f6fd20374e1..345e10e9b313 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -24,46 +24,22 @@ static int ieee80211_get_hdr_info(const struct sk_buff *skb, u8 **sa, u8 **da,
 {
 	struct ieee80211_hdr *hdr;
 	size_t hdrlen;
-	u16 fc;
-	int a4_included;
-	u8 *pos;
+	__le16 fc;
 
-	hdr = (struct ieee80211_hdr *) skb->data;
-	fc = le16_to_cpu(hdr->frame_control);
-
-	hdrlen = 24;
-	if ((fc & (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) ==
-	    (IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
-		hdrlen += ETH_ALEN;
-		*sa = hdr->addr4;
-		*da = hdr->addr3;
-	} else if (fc & IEEE80211_FCTL_FROMDS) {
-		*sa = hdr->addr3;
-		*da = hdr->addr1;
-	} else if (fc & IEEE80211_FCTL_TODS) {
-		*sa = hdr->addr2;
-		*da = hdr->addr3;
-	} else {
-		*sa = hdr->addr2;
-		*da = hdr->addr1;
-	}
+	hdr = (struct ieee80211_hdr *)skb->data;
+	fc = hdr->frame_control;
 
-	if (fc & 0x80)
-		hdrlen += 2;
+	hdrlen = ieee80211_hdrlen(fc);
+
+	*sa = ieee80211_get_SA(hdr);
+	*da = ieee80211_get_DA(hdr);
 
 	*data = skb->data + hdrlen;
 	*data_len = skb->len - hdrlen;
 
-	a4_included = (fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
-		(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS);
-	if ((fc & IEEE80211_FCTL_FTYPE) == IEEE80211_FTYPE_DATA &&
-	    fc & IEEE80211_STYPE_QOS_DATA) {
-		pos = (u8 *) &hdr->addr4;
-		if (a4_included)
-			pos += 6;
-		*qos_tid = pos[0] & 0x0f;
-		*qos_tid |= 0x80; /* qos_included flag */
-	} else
+	if (ieee80211_is_data_qos(fc))
+		*qos_tid = (*ieee80211_get_qos_ctl(hdr) & 0x0f) | 0x80;
+	else
 		*qos_tid = 0;
 
 	return skb->len < hdrlen ? -1 : 0;
@@ -186,8 +162,8 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
 	struct ieee80211_key *key = tx->key;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
-	int hdrlen, len, tail;
-	u16 fc;
+	unsigned int hdrlen;
+	int len, tail;
 	u8 *pos;
 
 	info->control.icv_len = TKIP_ICV_LEN;
@@ -200,8 +176,7 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 		return 0;
 	}
 
-	fc = le16_to_cpu(hdr->frame_control);
-	hdrlen = ieee80211_get_hdrlen(fc);
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	len = skb->len - hdrlen;
 
 	if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
@@ -223,14 +198,8 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 		key->u.tkip.tx.iv32++;
 
 	if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
-		hdr = (struct ieee80211_hdr *)skb->data;
-
 		/* hwaccel - with preallocated room for IV */
-		ieee80211_tkip_add_iv(pos, key,
-				      (u8) (key->u.tkip.tx.iv16 >> 8),
-				      (u8) (((key->u.tkip.tx.iv16 >> 8) | 0x20) &
-					    0x7f),
-				      (u8) key->u.tkip.tx.iv16);
+		ieee80211_tkip_add_iv(pos, key, key->u.tkip.tx.iv16);
 
 		info->control.hw_key = &tx->key->conf;
 		return 0;
@@ -272,14 +241,12 @@ ieee80211_rx_result
 ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
-	u16 fc;
 	int hdrlen, res, hwaccel = 0, wpa_test = 0;
 	struct ieee80211_key *key = rx->key;
 	struct sk_buff *skb = rx->skb;
 	DECLARE_MAC_BUF(mac);
 
-	fc = le16_to_cpu(hdr->frame_control);
-	hdrlen = ieee80211_get_hdrlen(fc);
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 
 	if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
 		return RX_CONTINUE;
@@ -427,7 +394,6 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	struct ieee80211_key *key = tx->key;
 	struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
 	int hdrlen, len, tail;
-	u16 fc;
 	u8 *pos, *pn, *b_0, *aad, *scratch;
 	int i;
 
@@ -446,8 +412,7 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
 	b_0 = scratch + 3 * AES_BLOCK_LEN;
 	aad = scratch + 4 * AES_BLOCK_LEN;
 
-	fc = le16_to_cpu(hdr->frame_control);
-	hdrlen = ieee80211_get_hdrlen(fc);
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 	len = skb->len - hdrlen;
 
 	if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
@@ -516,7 +481,6 @@ ieee80211_rx_result
 ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 {
 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
-	u16 fc;
 	int hdrlen;
 	struct ieee80211_key *key = rx->key;
 	struct sk_buff *skb = rx->skb;
@@ -524,8 +488,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
 	int data_len;
 	DECLARE_MAC_BUF(mac);
 
-	fc = le16_to_cpu(hdr->frame_control);
-	hdrlen = ieee80211_get_hdrlen(fc);
+	hdrlen = ieee80211_hdrlen(hdr->frame_control);
 
 	if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
 		return RX_CONTINUE;
diff --git a/net/wireless/reg.c b/net/wireless/reg.c
index 185488da2466..855bff4b3250 100644
--- a/net/wireless/reg.c
+++ b/net/wireless/reg.c
@@ -80,6 +80,23 @@ static const struct ieee80211_channel_range ieee80211_JP_channels[] = {
 				     IEEE80211_CHAN_RADAR),
 };
 
+static const struct ieee80211_channel_range ieee80211_EU_channels[] = {
+	/* IEEE 802.11b/g, channels 1..13 */
+	RANGE_PWR(2412, 2472, 20, 6, 0),
+	/* IEEE 802.11a, channel 36*/
+	RANGE_PWR(5180, 5180, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN),
+	/* IEEE 802.11a, channel 40*/
+	RANGE_PWR(5200, 5200, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN),
+	/* IEEE 802.11a, channel 44*/
+	RANGE_PWR(5220, 5220, 23, 6, IEEE80211_CHAN_PASSIVE_SCAN),
+	/* IEEE 802.11a, channels 48..64 */
+	RANGE_PWR(5240, 5320, 23, 6, IEEE80211_CHAN_NO_IBSS |
+				     IEEE80211_CHAN_RADAR),
+	/* IEEE 802.11a, channels 100..140 */
+	RANGE_PWR(5500, 5700, 30, 6, IEEE80211_CHAN_NO_IBSS |
+				     IEEE80211_CHAN_RADAR),
+};
+
 #define REGDOM(_code)							\
 	{								\
 		.code = __stringify(_code),				\
@@ -90,6 +107,7 @@ static const struct ieee80211_channel_range ieee80211_JP_channels[] = {
 static const struct ieee80211_regdomain ieee80211_regdoms[] = {
 	REGDOM(US),
 	REGDOM(JP),
+	REGDOM(EU),
 };