Merge ../bleed-2.6

net/core/neighbour.c

@@ -1625,12 +1625,9 @@ static int neightbl_fill_info(struct neigh_table *tbl, struct sk_buff *skb,
 
 		memset(&ndst, 0, sizeof(ndst));
 
-		for (cpu = 0; cpu < NR_CPUS; cpu++) {
+		for_each_cpu(cpu) {
 			struct neigh_statistics	*st;
 
-			if (!cpu_possible(cpu))
-				continue;
-
 			st = per_cpu_ptr(tbl->stats, cpu);
 			ndst.ndts_allocs		+= st->allocs;
 			ndst.ndts_destroys		+= st->destroys;

net/core/skbuff.c

@@ -122,6 +122,8 @@ void skb_under_panic(struct sk_buff *skb, int sz, void *here)
  *	__alloc_skb	-	allocate a network buffer
  *	@size: size to allocate
  *	@gfp_mask: allocation mask
+ *	@fclone: allocate from fclone cache instead of head cache
+ *		and allocate a cloned (child) skb
  *
  *	Allocate a new &sk_buff. The returned buffer has no headroom and a
  *	tail room of size bytes. The object has a reference count of one.

net/core/sock.c

@@ -940,7 +940,7 @@ static struct sk_buff *sock_alloc_send_pskb(struct sock *sk,
 					    int noblock, int *errcode)
 {
 	struct sk_buff *skb;
-	unsigned int gfp_mask;
+	gfp_t gfp_mask;
 	long timeo;
 	int err;
 

net/dccp/output.c

@@ -495,7 +495,7 @@ void dccp_send_close(struct sock *sk, const int active)
 {
 	struct dccp_sock *dp = dccp_sk(sk);
 	struct sk_buff *skb;
-	const unsigned int prio = active ? GFP_KERNEL : GFP_ATOMIC;
+	const gfp_t prio = active ? GFP_KERNEL : GFP_ATOMIC;
 
 	skb = alloc_skb(sk->sk_prot->max_header, prio);
 	if (skb == NULL)

net/decnet/af_decnet.c

@@ -719,22 +719,9 @@ static int dn_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
 	if (saddr->sdn_flags & ~SDF_WILD)
 		return -EINVAL;
 
-#if 1
 	if (!capable(CAP_NET_BIND_SERVICE) && (saddr->sdn_objnum ||
 	    (saddr->sdn_flags & SDF_WILD)))
 		return -EACCES;
-#else
-	/*
-	 * Maybe put the default actions in the default security ops for
-	 * dn_prot_sock ? Would be nice if the capable call would go there
-	 * too.
-	 */
-	if (security_dn_prot_sock(saddr) &&
-	    !capable(CAP_NET_BIND_SERVICE) || 
-	    saddr->sdn_objnum || (saddr->sdn_flags & SDF_WILD))
-		return -EACCES;
-#endif
-
 
 	if (!(saddr->sdn_flags & SDF_WILD)) {
 		if (dn_ntohs(saddr->sdn_nodeaddrl)) {

net/ieee80211/Makefile

@@ -7,5 +7,6 @@ ieee80211-objs := \
 	ieee80211_module.o \
 	ieee80211_tx.o \
 	ieee80211_rx.o \
-	ieee80211_wx.o
+	ieee80211_wx.o \
+	ieee80211_geo.o
 

net/ieee80211/ieee80211_crypt.c

@@ -41,6 +41,12 @@ void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, int force)
 {
 	struct list_head *ptr, *n;
 	struct ieee80211_crypt_data *entry;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ieee->lock, flags);
+
+	if (list_empty(&ieee->crypt_deinit_list))
+		goto unlock;
 
 	for (ptr = ieee->crypt_deinit_list.next, n = ptr->next;
 	     ptr != &ieee->crypt_deinit_list; ptr = n, n = ptr->next) {
@@ -57,6 +63,18 @@ void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, int force)
 		}
 		kfree(entry);
 	}
+      unlock:
+	spin_unlock_irqrestore(&ieee->lock, flags);
+}
+
+/* After this, crypt_deinit_list won't accept new members */
+void ieee80211_crypt_quiescing(struct ieee80211_device *ieee)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(&ieee->lock, flags);
+	ieee->crypt_quiesced = 1;
+	spin_unlock_irqrestore(&ieee->lock, flags);
 }
 
 void ieee80211_crypt_deinit_handler(unsigned long data)
@@ -64,16 +82,16 @@ void ieee80211_crypt_deinit_handler(unsigned long data)
 	struct ieee80211_device *ieee = (struct ieee80211_device *)data;
 	unsigned long flags;
 
-	spin_lock_irqsave(&ieee->lock, flags);
 	ieee80211_crypt_deinit_entries(ieee, 0);
-	if (!list_empty(&ieee->crypt_deinit_list)) {
+
+	spin_lock_irqsave(&ieee->lock, flags);
+	if (!list_empty(&ieee->crypt_deinit_list) && !ieee->crypt_quiesced) {
 		printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
 		       "deletion list\n", ieee->dev->name);
 		ieee->crypt_deinit_timer.expires = jiffies + HZ;
 		add_timer(&ieee->crypt_deinit_timer);
 	}
 	spin_unlock_irqrestore(&ieee->lock, flags);
-
 }
 
 void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
@@ -93,10 +111,12 @@ void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
 	 * locking. */
 
 	spin_lock_irqsave(&ieee->lock, flags);
-	list_add(&tmp->list, &ieee->crypt_deinit_list);
-	if (!timer_pending(&ieee->crypt_deinit_timer)) {
-		ieee->crypt_deinit_timer.expires = jiffies + HZ;
-		add_timer(&ieee->crypt_deinit_timer);
+	if (!ieee->crypt_quiesced) {
+		list_add(&tmp->list, &ieee->crypt_deinit_list);
+		if (!timer_pending(&ieee->crypt_deinit_timer)) {
+			ieee->crypt_deinit_timer.expires = jiffies + HZ;
+			add_timer(&ieee->crypt_deinit_timer);
+		}
 	}
 	spin_unlock_irqrestore(&ieee->lock, flags);
 }
@@ -191,18 +211,18 @@ static void ieee80211_crypt_null_deinit(void *priv)
 }
 
 static struct ieee80211_crypto_ops ieee80211_crypt_null = {
-	.name			= "NULL",
-	.init			= ieee80211_crypt_null_init,
-	.deinit			= ieee80211_crypt_null_deinit,
-	.encrypt_mpdu		= NULL,
-	.decrypt_mpdu		= NULL,
-	.encrypt_msdu		= NULL,
-	.decrypt_msdu		= NULL,
-	.set_key		= NULL,
-	.get_key		= NULL,
-	.extra_prefix_len	= 0,
-	.extra_postfix_len	= 0,
-	.owner			= THIS_MODULE,
+	.name = "NULL",
+	.init = ieee80211_crypt_null_init,
+	.deinit = ieee80211_crypt_null_deinit,
+	.encrypt_mpdu = NULL,
+	.decrypt_mpdu = NULL,
+	.encrypt_msdu = NULL,
+	.decrypt_msdu = NULL,
+	.set_key = NULL,
+	.get_key = NULL,
+	.extra_mpdu_prefix_len = 0,
+	.extra_mpdu_postfix_len = 0,
+	.owner = THIS_MODULE,
 };
 
 static int __init ieee80211_crypto_init(void)
@@ -249,6 +269,7 @@ static void __exit ieee80211_crypto_deinit(void)
 EXPORT_SYMBOL(ieee80211_crypt_deinit_entries);
 EXPORT_SYMBOL(ieee80211_crypt_deinit_handler);
 EXPORT_SYMBOL(ieee80211_crypt_delayed_deinit);
+EXPORT_SYMBOL(ieee80211_crypt_quiescing);
 
 EXPORT_SYMBOL(ieee80211_register_crypto_ops);
 EXPORT_SYMBOL(ieee80211_unregister_crypto_ops);

net/ieee80211/ieee80211_crypt_ccmp.c

@@ -119,7 +119,7 @@ static inline void xor_block(u8 * b, u8 * a, size_t len)
 }
 
 static void ccmp_init_blocks(struct crypto_tfm *tfm,
-			     struct ieee80211_hdr *hdr,
+			     struct ieee80211_hdr_4addr *hdr,
 			     u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0)
 {
 	u8 *pos, qc = 0;
@@ -191,26 +191,18 @@ static void ccmp_init_blocks(struct crypto_tfm *tfm,
 	ieee80211_ccmp_aes_encrypt(tfm, b0, s0);
 }
 
-static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static int ieee80211_ccmp_hdr(struct sk_buff *skb, int hdr_len, void *priv)
 {
 	struct ieee80211_ccmp_data *key = priv;
-	int data_len, i, blocks, last, len;
-	u8 *pos, *mic;
-	struct ieee80211_hdr *hdr;
-	u8 *b0 = key->tx_b0;
-	u8 *b = key->tx_b;
-	u8 *e = key->tx_e;
-	u8 *s0 = key->tx_s0;
+	int i;
+	u8 *pos;
 
-	if (skb_headroom(skb) < CCMP_HDR_LEN ||
-	    skb_tailroom(skb) < CCMP_MIC_LEN || skb->len < hdr_len)
+	if (skb_headroom(skb) < CCMP_HDR_LEN || skb->len < hdr_len)
 		return -1;
 
-	data_len = skb->len - hdr_len;
 	pos = skb_push(skb, CCMP_HDR_LEN);
 	memmove(pos, pos + CCMP_HDR_LEN, hdr_len);
 	pos += hdr_len;
-	mic = skb_put(skb, CCMP_MIC_LEN);
 
 	i = CCMP_PN_LEN - 1;
 	while (i >= 0) {
@@ -229,7 +221,31 @@ static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	*pos++ = key->tx_pn[1];
 	*pos++ = key->tx_pn[0];
 
-	hdr = (struct ieee80211_hdr *)skb->data;
+	return CCMP_HDR_LEN;
+}
+
+static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+{
+	struct ieee80211_ccmp_data *key = priv;
+	int data_len, i, blocks, last, len;
+	u8 *pos, *mic;
+	struct ieee80211_hdr_4addr *hdr;
+	u8 *b0 = key->tx_b0;
+	u8 *b = key->tx_b;
+	u8 *e = key->tx_e;
+	u8 *s0 = key->tx_s0;
+
+	if (skb_tailroom(skb) < CCMP_MIC_LEN || skb->len < hdr_len)
+		return -1;
+
+	data_len = skb->len - hdr_len;
+	len = ieee80211_ccmp_hdr(skb, hdr_len, priv);
+	if (len < 0)
+		return -1;
+
+	pos = skb->data + hdr_len + CCMP_HDR_LEN;
+	mic = skb_put(skb, CCMP_MIC_LEN);
+	hdr = (struct ieee80211_hdr_4addr *)skb->data;
 	ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0);
 
 	blocks = (data_len + AES_BLOCK_LEN - 1) / AES_BLOCK_LEN;
@@ -258,7 +274,7 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
 	struct ieee80211_ccmp_data *key = priv;
 	u8 keyidx, *pos;
-	struct ieee80211_hdr *hdr;
+	struct ieee80211_hdr_4addr *hdr;
 	u8 *b0 = key->rx_b0;
 	u8 *b = key->rx_b;
 	u8 *a = key->rx_a;
@@ -272,7 +288,7 @@ static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 		return -1;
 	}
 
-	hdr = (struct ieee80211_hdr *)skb->data;
+	hdr = (struct ieee80211_hdr_4addr *)skb->data;
 	pos = skb->data + hdr_len;
 	keyidx = pos[3];
 	if (!(keyidx & (1 << 5))) {
@@ -426,19 +442,20 @@ static char *ieee80211_ccmp_print_stats(char *p, void *priv)
 }
 
 static struct ieee80211_crypto_ops ieee80211_crypt_ccmp = {
-	.name			= "CCMP",
-	.init			= ieee80211_ccmp_init,
-	.deinit			= ieee80211_ccmp_deinit,
-	.encrypt_mpdu		= ieee80211_ccmp_encrypt,
-	.decrypt_mpdu		= ieee80211_ccmp_decrypt,
-	.encrypt_msdu		= NULL,
-	.decrypt_msdu		= NULL,
-	.set_key		= ieee80211_ccmp_set_key,
-	.get_key		= ieee80211_ccmp_get_key,
-	.print_stats		= ieee80211_ccmp_print_stats,
-	.extra_prefix_len	= CCMP_HDR_LEN,
-	.extra_postfix_len	= CCMP_MIC_LEN,
-	.owner			= THIS_MODULE,
+	.name = "CCMP",
+	.init = ieee80211_ccmp_init,
+	.deinit = ieee80211_ccmp_deinit,
+	.build_iv = ieee80211_ccmp_hdr,
+	.encrypt_mpdu = ieee80211_ccmp_encrypt,
+	.decrypt_mpdu = ieee80211_ccmp_decrypt,
+	.encrypt_msdu = NULL,
+	.decrypt_msdu = NULL,
+	.set_key = ieee80211_ccmp_set_key,
+	.get_key = ieee80211_ccmp_get_key,
+	.print_stats = ieee80211_ccmp_print_stats,
+	.extra_mpdu_prefix_len = CCMP_HDR_LEN,
+	.extra_mpdu_postfix_len = CCMP_MIC_LEN,
+	.owner = THIS_MODULE,
 };
 
 static int __init ieee80211_crypto_ccmp_init(void)

net/ieee80211/ieee80211_crypt_tkip.c

@@ -59,8 +59,24 @@ struct ieee80211_tkip_data {
 
 	/* scratch buffers for virt_to_page() (crypto API) */
 	u8 rx_hdr[16], tx_hdr[16];
+
+	unsigned long flags;
 };
 
+static unsigned long ieee80211_tkip_set_flags(unsigned long flags, void *priv)
+{
+	struct ieee80211_tkip_data *_priv = priv;
+	unsigned long old_flags = _priv->flags;
+	_priv->flags = flags;
+	return old_flags;
+}
+
+static unsigned long ieee80211_tkip_get_flags(void *priv)
+{
+	struct ieee80211_tkip_data *_priv = priv;
+	return _priv->flags;
+}
+
 static void *ieee80211_tkip_init(int key_idx)
 {
 	struct ieee80211_tkip_data *priv;
@@ -69,6 +85,7 @@ static void *ieee80211_tkip_init(int key_idx)
 	if (priv == NULL)
 		goto fail;
 	memset(priv, 0, sizeof(*priv));
+
 	priv->key_idx = key_idx;
 
 	priv->tfm_arc4 = crypto_alloc_tfm("arc4", 0);
@@ -255,25 +272,27 @@ static void tkip_mixing_phase2(u8 * WEPSeed, const u8 * TK, const u16 * TTAK,
 #endif
 }
 
-static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static u8 *ieee80211_tkip_hdr(struct sk_buff *skb, int hdr_len, void *priv)
 {
 	struct ieee80211_tkip_data *tkey = priv;
 	int len;
-	u8 rc4key[16], *pos, *icv;
-	struct ieee80211_hdr *hdr;
+	u8 *rc4key, *pos, *icv;
+	struct ieee80211_hdr_4addr *hdr;
 	u32 crc;
-	struct scatterlist sg;
 
-	if (skb_headroom(skb) < 8 || skb_tailroom(skb) < 4 ||
-	    skb->len < hdr_len)
-		return -1;
+	hdr = (struct ieee80211_hdr_4addr *)skb->data;
+
+	if (skb_headroom(skb) < 8 || skb->len < hdr_len)
+		return NULL;
 
-	hdr = (struct ieee80211_hdr *)skb->data;
 	if (!tkey->tx_phase1_done) {
 		tkip_mixing_phase1(tkey->tx_ttak, tkey->key, hdr->addr2,
 				   tkey->tx_iv32);
 		tkey->tx_phase1_done = 1;
 	}
+	rc4key = kmalloc(16, GFP_ATOMIC);
+	if (!rc4key)
+		return NULL;
 	tkip_mixing_phase2(rc4key, tkey->key, tkey->tx_ttak, tkey->tx_iv16);
 
 	len = skb->len - hdr_len;
@@ -282,9 +301,9 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	pos += hdr_len;
 	icv = skb_put(skb, 4);
 
-	*pos++ = rc4key[0];
-	*pos++ = rc4key[1];
-	*pos++ = rc4key[2];
+	*pos++ = *rc4key;
+	*pos++ = *(rc4key + 1);
+	*pos++ = *(rc4key + 2);
 	*pos++ = (tkey->key_idx << 6) | (1 << 5) /* Ext IV included */ ;
 	*pos++ = tkey->tx_iv32 & 0xff;
 	*pos++ = (tkey->tx_iv32 >> 8) & 0xff;
@@ -297,6 +316,38 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	icv[2] = crc >> 16;
 	icv[3] = crc >> 24;
 
+	return rc4key;
+}
+
+static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+{
+	struct ieee80211_tkip_data *tkey = priv;
+	int len;
+	const u8 *rc4key;
+	u8 *pos;
+	struct scatterlist sg;
+
+	if (tkey->flags & IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) {
+		if (net_ratelimit()) {
+			struct ieee80211_hdr_4addr *hdr =
+			    (struct ieee80211_hdr_4addr *)skb->data;
+			printk(KERN_DEBUG "TKIP countermeasures: dropped "
+			       "TX packet to " MAC_FMT "\n",
+			       MAC_ARG(hdr->addr1));
+		}
+		return -1;
+	}
+
+	if (skb_tailroom(skb) < 4 || skb->len < hdr_len)
+		return -1;
+
+	len = skb->len - hdr_len;
+	pos = skb->data + hdr_len;
+
+	rc4key = ieee80211_tkip_hdr(skb, hdr_len, priv);
+	if (!rc4key)
+		return -1;
+
 	crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
 	sg.page = virt_to_page(pos);
 	sg.offset = offset_in_page(pos);
@@ -319,16 +370,26 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 	u8 keyidx, *pos;
 	u32 iv32;
 	u16 iv16;
-	struct ieee80211_hdr *hdr;
+	struct ieee80211_hdr_4addr *hdr;
 	u8 icv[4];
 	u32 crc;
 	struct scatterlist sg;
 	int plen;
 
+	hdr = (struct ieee80211_hdr_4addr *)skb->data;
+
+	if (tkey->flags & IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) {
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "TKIP countermeasures: dropped "
+			       "received packet from " MAC_FMT "\n",
+			       MAC_ARG(hdr->addr2));
+		}
+		return -1;
+	}
+
 	if (skb->len < hdr_len + 8 + 4)
 		return -1;
 
-	hdr = (struct ieee80211_hdr *)skb->data;
 	pos = skb->data + hdr_len;
 	keyidx = pos[3];
 	if (!(keyidx & (1 << 5))) {
@@ -441,9 +502,9 @@ static int michael_mic(struct ieee80211_tkip_data *tkey, u8 * key, u8 * hdr,
 
 static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr)
 {
-	struct ieee80211_hdr *hdr11;
+	struct ieee80211_hdr_4addr *hdr11;
 
-	hdr11 = (struct ieee80211_hdr *)skb->data;
+	hdr11 = (struct ieee80211_hdr_4addr *)skb->data;
 	switch (le16_to_cpu(hdr11->frame_ctl) &
 		(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
 	case IEEE80211_FCTL_TODS:
@@ -490,9 +551,9 @@ static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len,
 	return 0;
 }
 
-#if WIRELESS_EXT >= 18
 static void ieee80211_michael_mic_failure(struct net_device *dev,
-					  struct ieee80211_hdr *hdr, int keyidx)
+					  struct ieee80211_hdr_4addr *hdr,
+					  int keyidx)
 {
 	union iwreq_data wrqu;
 	struct iw_michaelmicfailure ev;
@@ -510,28 +571,6 @@ static void ieee80211_michael_mic_failure(struct net_device *dev,
 	wrqu.data.length = sizeof(ev);
 	wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
 }
-#elif WIRELESS_EXT >= 15
-static void ieee80211_michael_mic_failure(struct net_device *dev,
-					  struct ieee80211_hdr *hdr, int keyidx)
-{
-	union iwreq_data wrqu;
-	char buf[128];
-
-	/* TODO: needed parameters: count, keyid, key type, TSC */
-	sprintf(buf, "MLME-MICHAELMICFAILURE.indication(keyid=%d %scast addr="
-		MAC_FMT ")", keyidx, hdr->addr1[0] & 0x01 ? "broad" : "uni",
-		MAC_ARG(hdr->addr2));
-	memset(&wrqu, 0, sizeof(wrqu));
-	wrqu.data.length = strlen(buf);
-	wireless_send_event(dev, IWEVCUSTOM, &wrqu, buf);
-}
-#else				/* WIRELESS_EXT >= 15 */
-static inline void ieee80211_michael_mic_failure(struct net_device *dev,
-						 struct ieee80211_hdr *hdr,
-						 int keyidx)
-{
-}
-#endif				/* WIRELESS_EXT >= 15 */
 
 static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
 					int hdr_len, void *priv)
@@ -547,8 +586,8 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
 			skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
 		return -1;
 	if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) {
-		struct ieee80211_hdr *hdr;
-		hdr = (struct ieee80211_hdr *)skb->data;
+		struct ieee80211_hdr_4addr *hdr;
+		hdr = (struct ieee80211_hdr_4addr *)skb->data;
 		printk(KERN_DEBUG "%s: Michael MIC verification failed for "
 		       "MSDU from " MAC_FMT " keyidx=%d\n",
 		       skb->dev ? skb->dev->name : "N/A", MAC_ARG(hdr->addr2),
@@ -654,19 +693,22 @@ static char *ieee80211_tkip_print_stats(char *p, void *priv)
 }
 
 static struct ieee80211_crypto_ops ieee80211_crypt_tkip = {
-	.name			= "TKIP",
-	.init			= ieee80211_tkip_init,
-	.deinit			= ieee80211_tkip_deinit,
-	.encrypt_mpdu		= ieee80211_tkip_encrypt,
-	.decrypt_mpdu		= ieee80211_tkip_decrypt,
-	.encrypt_msdu		= ieee80211_michael_mic_add,
-	.decrypt_msdu		= ieee80211_michael_mic_verify,
-	.set_key		= ieee80211_tkip_set_key,
-	.get_key		= ieee80211_tkip_get_key,
-	.print_stats		= ieee80211_tkip_print_stats,
-	.extra_prefix_len	= 4 + 4,	/* IV + ExtIV */
-	.extra_postfix_len	= 8 + 4,	/* MIC + ICV */
-	.owner			= THIS_MODULE,
+	.name = "TKIP",
+	.init = ieee80211_tkip_init,
+	.deinit = ieee80211_tkip_deinit,
+	.encrypt_mpdu = ieee80211_tkip_encrypt,
+	.decrypt_mpdu = ieee80211_tkip_decrypt,
+	.encrypt_msdu = ieee80211_michael_mic_add,
+	.decrypt_msdu = ieee80211_michael_mic_verify,
+	.set_key = ieee80211_tkip_set_key,
+	.get_key = ieee80211_tkip_get_key,
+	.print_stats = ieee80211_tkip_print_stats,
+	.extra_mpdu_prefix_len = 4 + 4,	/* IV + ExtIV */
+	.extra_mpdu_postfix_len = 4,	/* ICV */
+	.extra_msdu_postfix_len = 8,	/* MIC */
+	.get_flags = ieee80211_tkip_get_flags,
+	.set_flags = ieee80211_tkip_set_flags,
+	.owner = THIS_MODULE,
 };
 
 static int __init ieee80211_crypto_tkip_init(void)

net/ieee80211/ieee80211_crypt_wep.c

@@ -229,19 +229,19 @@ static char *prism2_wep_print_stats(char *p, void *priv)
 }
 
 static struct ieee80211_crypto_ops ieee80211_crypt_wep = {
-	.name			= "WEP",
-	.init			= prism2_wep_init,
-	.deinit			= prism2_wep_deinit,
-	.encrypt_mpdu		= prism2_wep_encrypt,
-	.decrypt_mpdu		= prism2_wep_decrypt,
-	.encrypt_msdu		= NULL,
-	.decrypt_msdu		= NULL,
-	.set_key		= prism2_wep_set_key,
-	.get_key		= prism2_wep_get_key,
-	.print_stats		= prism2_wep_print_stats,
-	.extra_prefix_len	= 4,	/* IV */
-	.extra_postfix_len	= 4,	/* ICV */
-	.owner			= THIS_MODULE,
+	.name = "WEP",
+	.init = prism2_wep_init,
+	.deinit = prism2_wep_deinit,
+	.encrypt_mpdu = prism2_wep_encrypt,
+	.decrypt_mpdu = prism2_wep_decrypt,
+	.encrypt_msdu = NULL,
+	.decrypt_msdu = NULL,
+	.set_key = prism2_wep_set_key,
+	.get_key = prism2_wep_get_key,
+	.print_stats = prism2_wep_print_stats,
+	.extra_mpdu_prefix_len = 4,	/* IV */
+	.extra_mpdu_postfix_len = 4,	/* ICV */
+	.owner = THIS_MODULE,
 };
 
 static int __init ieee80211_crypto_wep_init(void)

net/ieee80211/ieee80211_geo.c

@@ -0,0 +1,141 @@
+/******************************************************************************
+
+  Copyright(c) 2005 Intel Corporation. All rights reserved.
+
+  This program is free software; you can redistribute it and/or modify it
+  under the terms of version 2 of the GNU General Public License as
+  published by the Free Software Foundation.
+
+  This program is distributed in the hope that it will be useful, but WITHOUT
+  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+  more details.
+
+  You should have received a copy of the GNU General Public License along with
+  this program; if not, write to the Free Software Foundation, Inc., 59
+  Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+
+  The full GNU General Public License is included in this distribution in the
+  file called LICENSE.
+
+  Contact Information:
+  James P. Ketrenos <ipw2100-admin@linux.intel.com>
+  Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+
+******************************************************************************/
+#include <linux/compiler.h>
+#include <linux/config.h>
+#include <linux/errno.h>
+#include <linux/if_arp.h>
+#include <linux/in6.h>
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/netdevice.h>
+#include <linux/proc_fs.h>
+#include <linux/skbuff.h>
+#include <linux/slab.h>
+#include <linux/tcp.h>
+#include <linux/types.h>
+#include <linux/version.h>
+#include <linux/wireless.h>
+#include <linux/etherdevice.h>
+#include <asm/uaccess.h>
+
+#include <net/ieee80211.h>
+
+int ieee80211_is_valid_channel(struct ieee80211_device *ieee, u8 channel)
+{
+	int i;
+
+	/* Driver needs to initialize the geography map before using
+	 * these helper functions */
+	BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
+
+	if (ieee->freq_band & IEEE80211_24GHZ_BAND)
+		for (i = 0; i < ieee->geo.bg_channels; i++)
+			/* NOTE: If G mode is currently supported but
+			 * this is a B only channel, we don't see it
+			 * as valid. */
+			if ((ieee->geo.bg[i].channel == channel) &&
+			    (!(ieee->mode & IEEE_G) ||
+			     !(ieee->geo.bg[i].flags & IEEE80211_CH_B_ONLY)))
+				return IEEE80211_24GHZ_BAND;
+
+	if (ieee->freq_band & IEEE80211_52GHZ_BAND)
+		for (i = 0; i < ieee->geo.a_channels; i++)
+			if (ieee->geo.a[i].channel == channel)
+				return IEEE80211_52GHZ_BAND;
+
+	return 0;
+}
+
+int ieee80211_channel_to_index(struct ieee80211_device *ieee, u8 channel)
+{
+	int i;
+
+	/* Driver needs to initialize the geography map before using
+	 * these helper functions */
+	BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
+
+	if (ieee->freq_band & IEEE80211_24GHZ_BAND)
+		for (i = 0; i < ieee->geo.bg_channels; i++)
+			if (ieee->geo.bg[i].channel == channel)
+				return i;
+
+	if (ieee->freq_band & IEEE80211_52GHZ_BAND)
+		for (i = 0; i < ieee->geo.a_channels; i++)
+			if (ieee->geo.a[i].channel == channel)
+				return i;
+
+	return -1;
+}
+
+u8 ieee80211_freq_to_channel(struct ieee80211_device * ieee, u32 freq)
+{
+	int i;
+
+	/* Driver needs to initialize the geography map before using
+	 * these helper functions */
+	BUG_ON(ieee->geo.bg_channels == 0 && ieee->geo.a_channels == 0);
+
+	freq /= 100000;
+
+	if (ieee->freq_band & IEEE80211_24GHZ_BAND)
+		for (i = 0; i < ieee->geo.bg_channels; i++)
+			if (ieee->geo.bg[i].freq == freq)
+				return ieee->geo.bg[i].channel;
+
+	if (ieee->freq_band & IEEE80211_52GHZ_BAND)
+		for (i = 0; i < ieee->geo.a_channels; i++)
+			if (ieee->geo.a[i].freq == freq)
+				return ieee->geo.a[i].channel;
+
+	return 0;
+}
+
+int ieee80211_set_geo(struct ieee80211_device *ieee,
+		      const struct ieee80211_geo *geo)
+{
+	memcpy(ieee->geo.name, geo->name, 3);
+	ieee->geo.name[3] = '\0';
+	ieee->geo.bg_channels = geo->bg_channels;
+	ieee->geo.a_channels = geo->a_channels;
+	memcpy(ieee->geo.bg, geo->bg, geo->bg_channels *
+	       sizeof(struct ieee80211_channel));
+	memcpy(ieee->geo.a, geo->a, ieee->geo.a_channels *
+	       sizeof(struct ieee80211_channel));
+	return 0;
+}
+
+const struct ieee80211_geo *ieee80211_get_geo(struct ieee80211_device *ieee)
+{
+	return &ieee->geo;
+}
+
+EXPORT_SYMBOL(ieee80211_is_valid_channel);
+EXPORT_SYMBOL(ieee80211_freq_to_channel);
+EXPORT_SYMBOL(ieee80211_channel_to_index);
+EXPORT_SYMBOL(ieee80211_set_geo);
+EXPORT_SYMBOL(ieee80211_get_geo);

net/ieee80211/ieee80211_module.c

@@ -1,6 +1,6 @@
 /*******************************************************************************
 
-  Copyright(c) 2004 Intel Corporation. All rights reserved.
+  Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
 
   Portions of this file are based on the WEP enablement code provided by the
   Host AP project hostap-drivers v0.1.3
@@ -53,12 +53,15 @@
 
 #include <net/ieee80211.h>
 
-MODULE_DESCRIPTION("802.11 data/management/control stack");
-MODULE_AUTHOR
-    ("Copyright (C) 2004 Intel Corporation <jketreno@linux.intel.com>");
-MODULE_LICENSE("GPL");
+#define DRV_DESCRIPTION "802.11 data/management/control stack"
+#define DRV_NAME        "ieee80211"
+#define DRV_VERSION	IEEE80211_VERSION
+#define DRV_COPYRIGHT   "Copyright (C) 2004-2005 Intel Corporation <jketreno@linux.intel.com>"
 
-#define DRV_NAME "ieee80211"
+MODULE_VERSION(DRV_VERSION);
+MODULE_DESCRIPTION(DRV_DESCRIPTION);
+MODULE_AUTHOR(DRV_COPYRIGHT);
+MODULE_LICENSE("GPL");
 
 static inline int ieee80211_networks_allocate(struct ieee80211_device *ieee)
 {
@@ -126,26 +129,34 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
 
 	/* Default fragmentation threshold is maximum payload size */
 	ieee->fts = DEFAULT_FTS;
+	ieee->rts = DEFAULT_FTS;
 	ieee->scan_age = DEFAULT_MAX_SCAN_AGE;
 	ieee->open_wep = 1;
 
 	/* Default to enabling full open WEP with host based encrypt/decrypt */
 	ieee->host_encrypt = 1;
 	ieee->host_decrypt = 1;
+	ieee->host_mc_decrypt = 1;
+
+	/* Host fragementation in Open mode. Default is enabled.
+	 * Note: host fragmentation is always enabled if host encryption
+	 * is enabled. For cards can do hardware encryption, they must do
+	 * hardware fragmentation as well. So we don't need a variable
+	 * like host_enc_frag. */
+	ieee->host_open_frag = 1;
 	ieee->ieee802_1x = 1;	/* Default to supporting 802.1x */
 
 	INIT_LIST_HEAD(&ieee->crypt_deinit_list);
 	init_timer(&ieee->crypt_deinit_timer);
 	ieee->crypt_deinit_timer.data = (unsigned long)ieee;
 	ieee->crypt_deinit_timer.function = ieee80211_crypt_deinit_handler;
+	ieee->crypt_quiesced = 0;
 
 	spin_lock_init(&ieee->lock);
 
 	ieee->wpa_enabled = 0;
-	ieee->tkip_countermeasures = 0;
 	ieee->drop_unencrypted = 0;
 	ieee->privacy_invoked = 0;
-	ieee->ieee802_1x = 1;
 
 	return dev;
 
@@ -161,6 +172,7 @@ void free_ieee80211(struct net_device *dev)
 
 	int i;
 
+	ieee80211_crypt_quiescing(ieee);
 	del_timer_sync(&ieee->crypt_deinit_timer);
 	ieee80211_crypt_deinit_entries(ieee, 1);
 
@@ -195,38 +207,26 @@ static int show_debug_level(char *page, char **start, off_t offset,
 static int store_debug_level(struct file *file, const char __user * buffer,
 			     unsigned long count, void *data)
 {
-	char buf[] = "0x00000000";
-	char *p = (char *)buf;
+	char buf[] = "0x00000000\n";
+	unsigned long len = min((unsigned long)sizeof(buf) - 1, count);
 	unsigned long val;
 
-	if (count > sizeof(buf) - 1)
-		count = sizeof(buf) - 1;
-
-	if (copy_from_user(buf, buffer, count))
+	if (copy_from_user(buf, buffer, len))
 		return count;
-	buf[count] = 0;
-	/*
-	 * what a FPOS...  What, sscanf(buf, "%i", &val) would be too
-	 * scary?
-	 */
-	if (p[1] == 'x' || p[1] == 'X' || p[0] == 'x' || p[0] == 'X') {
-		p++;
-		if (p[0] == 'x' || p[0] == 'X')
-			p++;
-		val = simple_strtoul(p, &p, 16);
-	} else
-		val = simple_strtoul(p, &p, 10);
-	if (p == buf)
+	buf[len] = 0;
+	if (sscanf(buf, "%li", &val) != 1)
 		printk(KERN_INFO DRV_NAME
 		       ": %s is not in hex or decimal form.\n", buf);
 	else
 		ieee80211_debug_level = val;
 
-	return strlen(buf);
+	return strnlen(buf, len);
 }
+#endif				/* CONFIG_IEEE80211_DEBUG */
 
 static int __init ieee80211_init(void)
 {
+#ifdef CONFIG_IEEE80211_DEBUG
 	struct proc_dir_entry *e;
 
 	ieee80211_debug_level = debug;
@@ -246,26 +246,33 @@ static int __init ieee80211_init(void)
 	e->read_proc = show_debug_level;
 	e->write_proc = store_debug_level;
 	e->data = NULL;
+#endif				/* CONFIG_IEEE80211_DEBUG */
+
+	printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION ", " DRV_VERSION "\n");
+	printk(KERN_INFO DRV_NAME ": " DRV_COPYRIGHT "\n");
 
 	return 0;
 }
 
 static void __exit ieee80211_exit(void)
 {
+#ifdef CONFIG_IEEE80211_DEBUG
 	if (ieee80211_proc) {
 		remove_proc_entry("debug_level", ieee80211_proc);
 		remove_proc_entry(DRV_NAME, proc_net);
 		ieee80211_proc = NULL;
 	}
+#endif				/* CONFIG_IEEE80211_DEBUG */
 }
 
+#ifdef CONFIG_IEEE80211_DEBUG
 #include <linux/moduleparam.h>
 module_param(debug, int, 0444);
 MODULE_PARM_DESC(debug, "debug output mask");
+#endif				/* CONFIG_IEEE80211_DEBUG */
 
 module_exit(ieee80211_exit);
 module_init(ieee80211_init);
-#endif
 
 const char *escape_essid(const char *essid, u8 essid_len)
 {

net/ieee80211/ieee80211_tx.c

@@ -1,6 +1,6 @@
 /******************************************************************************
 
-  Copyright(c) 2003 - 2004 Intel Corporation. All rights reserved.
+  Copyright(c) 2003 - 2005 Intel Corporation. All rights reserved.
 
   This program is free software; you can redistribute it and/or modify it
   under the terms of version 2 of the GNU General Public License as
@@ -128,7 +128,7 @@ payload of each frame is reduced to 492 bytes.
 static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 };
 static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
 
-static inline int ieee80211_put_snap(u8 * data, u16 h_proto)
+static inline int ieee80211_copy_snap(u8 * data, u16 h_proto)
 {
 	struct ieee80211_snap_hdr *snap;
 	u8 *oui;
@@ -157,31 +157,14 @@ static inline int ieee80211_encrypt_fragment(struct ieee80211_device *ieee,
 	struct ieee80211_crypt_data *crypt = ieee->crypt[ieee->tx_keyidx];
 	int res;
 
-#ifdef CONFIG_IEEE80211_CRYPT_TKIP
-	struct ieee80211_hdr *header;
-
-	if (ieee->tkip_countermeasures &&
-	    crypt && crypt->ops && strcmp(crypt->ops->name, "TKIP") == 0) {
-		header = (struct ieee80211_hdr *)frag->data;
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "%s: TKIP countermeasures: dropped "
-			       "TX packet to " MAC_FMT "\n",
-			       ieee->dev->name, MAC_ARG(header->addr1));
-		}
+	if (crypt == NULL)
 		return -1;
-	}
-#endif
+
 	/* To encrypt, frame format is:
 	 * IV (4 bytes), clear payload (including SNAP), ICV (4 bytes) */
-
-	// PR: FIXME: Copied from hostap. Check fragmentation/MSDU/MPDU encryption.
-	/* Host-based IEEE 802.11 fragmentation for TX is not yet supported, so
-	 * call both MSDU and MPDU encryption functions from here. */
 	atomic_inc(&crypt->refcnt);
 	res = 0;
-	if (crypt->ops->encrypt_msdu)
-		res = crypt->ops->encrypt_msdu(frag, hdr_len, crypt->priv);
-	if (res == 0 && crypt->ops->encrypt_mpdu)
+	if (crypt->ops && crypt->ops->encrypt_mpdu)
 		res = crypt->ops->encrypt_mpdu(frag, hdr_len, crypt->priv);
 
 	atomic_dec(&crypt->refcnt);
@@ -207,7 +190,7 @@ void ieee80211_txb_free(struct ieee80211_txb *txb)
 }
 
 static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
-						 gfp_t gfp_mask)
+						 int headroom, gfp_t gfp_mask)
 {
 	struct ieee80211_txb *txb;
 	int i;
@@ -221,11 +204,13 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
 	txb->frag_size = txb_size;
 
 	for (i = 0; i < nr_frags; i++) {
-		txb->fragments[i] = dev_alloc_skb(txb_size);
+		txb->fragments[i] = __dev_alloc_skb(txb_size + headroom,
+						    gfp_mask);
 		if (unlikely(!txb->fragments[i])) {
 			i--;
 			break;
 		}
+		skb_reserve(txb->fragments[i], headroom);
 	}
 	if (unlikely(i != nr_frags)) {
 		while (i >= 0)
@@ -236,25 +221,31 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
 	return txb;
 }
 
-/* SKBs are added to the ieee->tx_queue. */
+/* Incoming skb is converted to a txb which consists of
+ * a block of 802.11 fragment packets (stored as skbs) */
 int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct ieee80211_device *ieee = netdev_priv(dev);
 	struct ieee80211_txb *txb = NULL;
-	struct ieee80211_hdr *frag_hdr;
-	int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size;
+	struct ieee80211_hdr_3addr *frag_hdr;
+	int i, bytes_per_frag, nr_frags, bytes_last_frag, frag_size,
+	    rts_required;
 	unsigned long flags;
 	struct net_device_stats *stats = &ieee->stats;
-	int ether_type, encrypt;
+	int ether_type, encrypt, host_encrypt, host_encrypt_msdu, host_build_iv;
 	int bytes, fc, hdr_len;
 	struct sk_buff *skb_frag;
-	struct ieee80211_hdr header = {	/* Ensure zero initialized */
+	struct ieee80211_hdr_3addr header = {	/* Ensure zero initialized */
 		.duration_id = 0,
 		.seq_ctl = 0
 	};
 	u8 dest[ETH_ALEN], src[ETH_ALEN];
-
 	struct ieee80211_crypt_data *crypt;
+	int priority = skb->priority;
+	int snapped = 0;
+
+	if (ieee->is_queue_full && (*ieee->is_queue_full) (dev, priority))
+		return NETDEV_TX_BUSY;
 
 	spin_lock_irqsave(&ieee->lock, flags);
 
@@ -276,7 +267,11 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 	crypt = ieee->crypt[ieee->tx_keyidx];
 
 	encrypt = !(ether_type == ETH_P_PAE && ieee->ieee802_1x) &&
-	    ieee->host_encrypt && crypt && crypt->ops;
+	    ieee->sec.encrypt;
+
+	host_encrypt = ieee->host_encrypt && encrypt && crypt;
+	host_encrypt_msdu = ieee->host_encrypt_msdu && encrypt && crypt;
+	host_build_iv = ieee->host_build_iv && encrypt && crypt;
 
 	if (!encrypt && ieee->ieee802_1x &&
 	    ieee->drop_unencrypted && ether_type != ETH_P_PAE) {
@@ -285,8 +280,8 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 	}
 
 	/* Save source and destination addresses */
-	memcpy(&dest, skb->data, ETH_ALEN);
-	memcpy(&src, skb->data + ETH_ALEN, ETH_ALEN);
+	memcpy(dest, skb->data, ETH_ALEN);
+	memcpy(src, skb->data + ETH_ALEN, ETH_ALEN);
 
 	/* Advance the SKB to the start of the payload */
 	skb_pull(skb, sizeof(struct ethhdr));
@@ -294,7 +289,7 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 	/* Determine total amount of storage required for TXB packets */
 	bytes = skb->len + SNAP_SIZE + sizeof(u16);
 
-	if (encrypt)
+	if (host_encrypt)
 		fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA |
 		    IEEE80211_FCTL_PROTECTED;
 	else
@@ -302,70 +297,144 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (ieee->iw_mode == IW_MODE_INFRA) {
 		fc |= IEEE80211_FCTL_TODS;
-		/* To DS: Addr1 = BSSID, Addr2 = SA,
-		   Addr3 = DA */
-		memcpy(&header.addr1, ieee->bssid, ETH_ALEN);
-		memcpy(&header.addr2, &src, ETH_ALEN);
-		memcpy(&header.addr3, &dest, ETH_ALEN);
+		/* To DS: Addr1 = BSSID, Addr2 = SA, Addr3 = DA */
+		memcpy(header.addr1, ieee->bssid, ETH_ALEN);
+		memcpy(header.addr2, src, ETH_ALEN);
+		memcpy(header.addr3, dest, ETH_ALEN);
 	} else if (ieee->iw_mode == IW_MODE_ADHOC) {
-		/* not From/To DS: Addr1 = DA, Addr2 = SA,
-		   Addr3 = BSSID */
-		memcpy(&header.addr1, dest, ETH_ALEN);
-		memcpy(&header.addr2, src, ETH_ALEN);
-		memcpy(&header.addr3, ieee->bssid, ETH_ALEN);
+		/* not From/To DS: Addr1 = DA, Addr2 = SA, Addr3 = BSSID */
+		memcpy(header.addr1, dest, ETH_ALEN);
+		memcpy(header.addr2, src, ETH_ALEN);
+		memcpy(header.addr3, ieee->bssid, ETH_ALEN);
 	}
 	header.frame_ctl = cpu_to_le16(fc);
 	hdr_len = IEEE80211_3ADDR_LEN;
 
-	/* Determine fragmentation size based on destination (multicast
-	 * and broadcast are not fragmented) */
-	if (is_multicast_ether_addr(dest) || is_broadcast_ether_addr(dest))
-		frag_size = MAX_FRAG_THRESHOLD;
-	else
-		frag_size = ieee->fts;
+	/* Encrypt msdu first on the whole data packet. */
+	if ((host_encrypt || host_encrypt_msdu) &&
+	    crypt && crypt->ops && crypt->ops->encrypt_msdu) {
+		int res = 0;
+		int len = bytes + hdr_len + crypt->ops->extra_msdu_prefix_len +
+		    crypt->ops->extra_msdu_postfix_len;
+		struct sk_buff *skb_new = dev_alloc_skb(len);
 
-	/* Determine amount of payload per fragment.  Regardless of if
-	 * this stack is providing the full 802.11 header, one will
-	 * eventually be affixed to this fragment -- so we must account for
-	 * it when determining the amount of payload space. */
-	bytes_per_frag = frag_size - IEEE80211_3ADDR_LEN;
-	if (ieee->config &
-	    (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
-		bytes_per_frag -= IEEE80211_FCS_LEN;
+		if (unlikely(!skb_new))
+			goto failed;
 
-	/* Each fragment may need to have room for encryptiong pre/postfix */
-	if (encrypt)
-		bytes_per_frag -= crypt->ops->extra_prefix_len +
-		    crypt->ops->extra_postfix_len;
+		skb_reserve(skb_new, crypt->ops->extra_msdu_prefix_len);
+		memcpy(skb_put(skb_new, hdr_len), &header, hdr_len);
+		snapped = 1;
+		ieee80211_copy_snap(skb_put(skb_new, SNAP_SIZE + sizeof(u16)),
+				    ether_type);
+		memcpy(skb_put(skb_new, skb->len), skb->data, skb->len);
+		res = crypt->ops->encrypt_msdu(skb_new, hdr_len, crypt->priv);
+		if (res < 0) {
+			IEEE80211_ERROR("msdu encryption failed\n");
+			dev_kfree_skb_any(skb_new);
+			goto failed;
+		}
+		dev_kfree_skb_any(skb);
+		skb = skb_new;
+		bytes += crypt->ops->extra_msdu_prefix_len +
+		    crypt->ops->extra_msdu_postfix_len;
+		skb_pull(skb, hdr_len);
+	}
 
-	/* Number of fragments is the total bytes_per_frag /
-	 * payload_per_fragment */
-	nr_frags = bytes / bytes_per_frag;
-	bytes_last_frag = bytes % bytes_per_frag;
-	if (bytes_last_frag)
+	if (host_encrypt || ieee->host_open_frag) {
+		/* Determine fragmentation size based on destination (multicast
+		 * and broadcast are not fragmented) */
+		if (is_multicast_ether_addr(dest) ||
+		    is_broadcast_ether_addr(dest))
+			frag_size = MAX_FRAG_THRESHOLD;
+		else
+			frag_size = ieee->fts;
+
+		/* Determine amount of payload per fragment.  Regardless of if
+		 * this stack is providing the full 802.11 header, one will
+		 * eventually be affixed to this fragment -- so we must account
+		 * for it when determining the amount of payload space. */
+		bytes_per_frag = frag_size - IEEE80211_3ADDR_LEN;
+		if (ieee->config &
+		    (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
+			bytes_per_frag -= IEEE80211_FCS_LEN;
+
+		/* Each fragment may need to have room for encryptiong
+		 * pre/postfix */
+		if (host_encrypt)
+			bytes_per_frag -= crypt->ops->extra_mpdu_prefix_len +
+			    crypt->ops->extra_mpdu_postfix_len;
+
+		/* Number of fragments is the total
+		 * bytes_per_frag / payload_per_fragment */
+		nr_frags = bytes / bytes_per_frag;
+		bytes_last_frag = bytes % bytes_per_frag;
+		if (bytes_last_frag)
+			nr_frags++;
+		else
+			bytes_last_frag = bytes_per_frag;
+	} else {
+		nr_frags = 1;
+		bytes_per_frag = bytes_last_frag = bytes;
+		frag_size = bytes + IEEE80211_3ADDR_LEN;
+	}
+
+	rts_required = (frag_size > ieee->rts
+			&& ieee->config & CFG_IEEE80211_RTS);
+	if (rts_required)
 		nr_frags++;
-	else
-		bytes_last_frag = bytes_per_frag;
 
 	/* When we allocate the TXB we allocate enough space for the reserve
 	 * and full fragment bytes (bytes_per_frag doesn't include prefix,
 	 * postfix, header, FCS, etc.) */
-	txb = ieee80211_alloc_txb(nr_frags, frag_size, GFP_ATOMIC);
+	txb = ieee80211_alloc_txb(nr_frags, frag_size,
+				  ieee->tx_headroom, GFP_ATOMIC);
 	if (unlikely(!txb)) {
 		printk(KERN_WARNING "%s: Could not allocate TXB\n",
 		       ieee->dev->name);
 		goto failed;
 	}
 	txb->encrypted = encrypt;
-	txb->payload_size = bytes;
+	if (host_encrypt)
+		txb->payload_size = frag_size * (nr_frags - 1) +
+		    bytes_last_frag;
+	else
+		txb->payload_size = bytes;
 
-	for (i = 0; i < nr_frags; i++) {
+	if (rts_required) {
+		skb_frag = txb->fragments[0];
+		frag_hdr =
+		    (struct ieee80211_hdr_3addr *)skb_put(skb_frag, hdr_len);
+
+		/*
+		 * Set header frame_ctl to the RTS.
+		 */
+		header.frame_ctl =
+		    cpu_to_le16(IEEE80211_FTYPE_CTL | IEEE80211_STYPE_RTS);
+		memcpy(frag_hdr, &header, hdr_len);
+
+		/*
+		 * Restore header frame_ctl to the original data setting.
+		 */
+		header.frame_ctl = cpu_to_le16(fc);
+
+		if (ieee->config &
+		    (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
+			skb_put(skb_frag, 4);
+
+		txb->rts_included = 1;
+		i = 1;
+	} else
+		i = 0;
+
+	for (; i < nr_frags; i++) {
 		skb_frag = txb->fragments[i];
 
-		if (encrypt)
-			skb_reserve(skb_frag, crypt->ops->extra_prefix_len);
+		if (host_encrypt || host_build_iv)
+			skb_reserve(skb_frag,
+				    crypt->ops->extra_mpdu_prefix_len);
 
-		frag_hdr = (struct ieee80211_hdr *)skb_put(skb_frag, hdr_len);
+		frag_hdr =
+		    (struct ieee80211_hdr_3addr *)skb_put(skb_frag, hdr_len);
 		memcpy(frag_hdr, &header, hdr_len);
 
 		/* If this is not the last fragment, then add the MOREFRAGS
@@ -379,11 +448,10 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 			bytes = bytes_last_frag;
 		}
 
-		/* Put a SNAP header on the first fragment */
-		if (i == 0) {
-			ieee80211_put_snap(skb_put
-					   (skb_frag, SNAP_SIZE + sizeof(u16)),
-					   ether_type);
+		if (i == 0 && !snapped) {
+			ieee80211_copy_snap(skb_put
+					    (skb_frag, SNAP_SIZE + sizeof(u16)),
+					    ether_type);
 			bytes -= SNAP_SIZE + sizeof(u16);
 		}
 
@@ -394,8 +462,19 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 
 		/* Encryption routine will move the header forward in order
 		 * to insert the IV between the header and the payload */
-		if (encrypt)
+		if (host_encrypt)
 			ieee80211_encrypt_fragment(ieee, skb_frag, hdr_len);
+		else if (host_build_iv) {
+			struct ieee80211_crypt_data *crypt;
+
+			crypt = ieee->crypt[ieee->tx_keyidx];
+			atomic_inc(&crypt->refcnt);
+			if (crypt->ops->build_iv)
+				crypt->ops->build_iv(skb_frag, hdr_len,
+						     crypt->priv);
+			atomic_dec(&crypt->refcnt);
+		}
+
 		if (ieee->config &
 		    (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
 			skb_put(skb_frag, 4);
@@ -407,11 +486,20 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 	dev_kfree_skb_any(skb);
 
 	if (txb) {
-		if ((*ieee->hard_start_xmit) (txb, dev) == 0) {
+		int ret = (*ieee->hard_start_xmit) (txb, dev, priority);
+		if (ret == 0) {
 			stats->tx_packets++;
 			stats->tx_bytes += txb->payload_size;
 			return 0;
 		}
+
+		if (ret == NETDEV_TX_BUSY) {
+			printk(KERN_ERR "%s: NETDEV_TX_BUSY returned; "
+			       "driver should report queue full via "
+			       "ieee_device->is_queue_full.\n",
+			       ieee->dev->name);
+		}
+
 		ieee80211_txb_free(txb);
 	}
 
@@ -422,7 +510,72 @@ int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
 	netif_stop_queue(dev);
 	stats->tx_errors++;
 	return 1;
-
 }
 
+/* Incoming 802.11 strucure is converted to a TXB
+ * a block of 802.11 fragment packets (stored as skbs) */
+int ieee80211_tx_frame(struct ieee80211_device *ieee,
+		       struct ieee80211_hdr *frame, int len)
+{
+	struct ieee80211_txb *txb = NULL;
+	unsigned long flags;
+	struct net_device_stats *stats = &ieee->stats;
+	struct sk_buff *skb_frag;
+	int priority = -1;
+
+	spin_lock_irqsave(&ieee->lock, flags);
+
+	/* If there is no driver handler to take the TXB, dont' bother
+	 * creating it... */
+	if (!ieee->hard_start_xmit) {
+		printk(KERN_WARNING "%s: No xmit handler.\n", ieee->dev->name);
+		goto success;
+	}
+
+	if (unlikely(len < 24)) {
+		printk(KERN_WARNING "%s: skb too small (%d).\n",
+		       ieee->dev->name, len);
+		goto success;
+	}
+
+	/* When we allocate the TXB we allocate enough space for the reserve
+	 * and full fragment bytes (bytes_per_frag doesn't include prefix,
+	 * postfix, header, FCS, etc.) */
+	txb = ieee80211_alloc_txb(1, len, ieee->tx_headroom, GFP_ATOMIC);
+	if (unlikely(!txb)) {
+		printk(KERN_WARNING "%s: Could not allocate TXB\n",
+		       ieee->dev->name);
+		goto failed;
+	}
+	txb->encrypted = 0;
+	txb->payload_size = len;
+
+	skb_frag = txb->fragments[0];
+
+	memcpy(skb_put(skb_frag, len), frame, len);
+
+	if (ieee->config &
+	    (CFG_IEEE80211_COMPUTE_FCS | CFG_IEEE80211_RESERVE_FCS))
+		skb_put(skb_frag, 4);
+
+      success:
+	spin_unlock_irqrestore(&ieee->lock, flags);
+
+	if (txb) {
+		if ((*ieee->hard_start_xmit) (txb, ieee->dev, priority) == 0) {
+			stats->tx_packets++;
+			stats->tx_bytes += txb->payload_size;
+			return 0;
+		}
+		ieee80211_txb_free(txb);
+	}
+	return 0;
+
+      failed:
+	spin_unlock_irqrestore(&ieee->lock, flags);
+	stats->tx_errors++;
+	return 1;
+}
+
+EXPORT_SYMBOL(ieee80211_tx_frame);
 EXPORT_SYMBOL(ieee80211_txb_free);

net/ieee80211/ieee80211_wx.c

@@ -1,6 +1,6 @@
 /******************************************************************************
 
-  Copyright(c) 2004 Intel Corporation. All rights reserved.
+  Copyright(c) 2004-2005 Intel Corporation. All rights reserved.
 
   Portions of this file are based on the WEP enablement code provided by the
   Host AP project hostap-drivers v0.1.3
@@ -32,6 +32,7 @@
 
 #include <linux/kmod.h>
 #include <linux/module.h>
+#include <linux/jiffies.h>
 
 #include <net/ieee80211.h>
 #include <linux/wireless.h>
@@ -140,18 +141,41 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee,
 		start = iwe_stream_add_point(start, stop, &iwe, custom);
 
 	/* Add quality statistics */
-	/* TODO: Fix these values... */
 	iwe.cmd = IWEVQUAL;
-	iwe.u.qual.qual = network->stats.signal;
-	iwe.u.qual.level = network->stats.rssi;
-	iwe.u.qual.noise = network->stats.noise;
-	iwe.u.qual.updated = network->stats.mask & IEEE80211_STATMASK_WEMASK;
-	if (!(network->stats.mask & IEEE80211_STATMASK_RSSI))
-		iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
-	if (!(network->stats.mask & IEEE80211_STATMASK_NOISE))
+	iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
+	    IW_QUAL_NOISE_UPDATED;
+
+	if (!(network->stats.mask & IEEE80211_STATMASK_RSSI)) {
+		iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID |
+		    IW_QUAL_LEVEL_INVALID;
+		iwe.u.qual.qual = 0;
+		iwe.u.qual.level = 0;
+	} else {
+		iwe.u.qual.level = network->stats.rssi;
+		if (ieee->perfect_rssi == ieee->worst_rssi)
+			iwe.u.qual.qual = 100;
+		else
+			iwe.u.qual.qual =
+			    (100 *
+			     (ieee->perfect_rssi - ieee->worst_rssi) *
+			     (ieee->perfect_rssi - ieee->worst_rssi) -
+			     (ieee->perfect_rssi - network->stats.rssi) *
+			     (15 * (ieee->perfect_rssi - ieee->worst_rssi) +
+			      62 * (ieee->perfect_rssi - network->stats.rssi))) /
+			    ((ieee->perfect_rssi - ieee->worst_rssi) *
+			     (ieee->perfect_rssi - ieee->worst_rssi));
+		if (iwe.u.qual.qual > 100)
+			iwe.u.qual.qual = 100;
+		else if (iwe.u.qual.qual < 1)
+			iwe.u.qual.qual = 0;
+	}
+
+	if (!(network->stats.mask & IEEE80211_STATMASK_NOISE)) {
 		iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
-	if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL))
-		iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
+		iwe.u.qual.noise = 0;
+	} else {
+		iwe.u.qual.noise = network->stats.noise;
+	}
 
 	start = iwe_stream_add_event(start, stop, &iwe, IW_EV_QUAL_LEN);
 
@@ -162,7 +186,7 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee,
 	if (iwe.u.data.length)
 		start = iwe_stream_add_point(start, stop, &iwe, custom);
 
-	if (ieee->wpa_enabled && network->wpa_ie_len) {
+	if (network->wpa_ie_len) {
 		char buf[MAX_WPA_IE_LEN * 2 + 30];
 
 		u8 *p = buf;
@@ -177,7 +201,7 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee,
 		start = iwe_stream_add_point(start, stop, &iwe, buf);
 	}
 
-	if (ieee->wpa_enabled && network->rsn_ie_len) {
+	if (network->rsn_ie_len) {
 		char buf[MAX_WPA_IE_LEN * 2 + 30];
 
 		u8 *p = buf;
@@ -197,8 +221,8 @@ static inline char *ipw2100_translate_scan(struct ieee80211_device *ieee,
 	iwe.cmd = IWEVCUSTOM;
 	p = custom;
 	p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
-		      " Last beacon: %lums ago",
-		      (jiffies - network->last_scanned) / (HZ / 100));
+		      " Last beacon: %dms ago",
+		      jiffies_to_msecs(jiffies - network->last_scanned));
 	iwe.u.data.length = p - custom;
 	if (iwe.u.data.length)
 		start = iwe_stream_add_point(start, stop, &iwe, custom);
@@ -228,13 +252,13 @@ int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
 			ev = ipw2100_translate_scan(ieee, ev, stop, network);
 		else
 			IEEE80211_DEBUG_SCAN("Not showing network '%s ("
-					     MAC_FMT ")' due to age (%lums).\n",
+					     MAC_FMT ")' due to age (%dms).\n",
 					     escape_essid(network->ssid,
 							  network->ssid_len),
 					     MAC_ARG(network->bssid),
-					     (jiffies -
-					      network->last_scanned) / (HZ /
-									100));
+					     jiffies_to_msecs(jiffies -
+							      network->
+							      last_scanned));
 	}
 
 	spin_unlock_irqrestore(&ieee->lock, flags);
@@ -258,6 +282,7 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
 	};
 	int i, key, key_provided, len;
 	struct ieee80211_crypt_data **crypt;
+	int host_crypto = ieee->host_encrypt || ieee->host_decrypt;
 
 	IEEE80211_DEBUG_WX("SET_ENCODE\n");
 
@@ -298,15 +323,17 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
 
 		if (i == WEP_KEYS) {
 			sec.enabled = 0;
+			sec.encrypt = 0;
 			sec.level = SEC_LEVEL_0;
-			sec.flags |= SEC_ENABLED | SEC_LEVEL;
+			sec.flags |= SEC_ENABLED | SEC_LEVEL | SEC_ENCRYPT;
 		}
 
 		goto done;
 	}
 
 	sec.enabled = 1;
-	sec.flags |= SEC_ENABLED;
+	sec.encrypt = 1;
+	sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
 
 	if (*crypt != NULL && (*crypt)->ops != NULL &&
 	    strcmp((*crypt)->ops->name, "WEP") != 0) {
@@ -315,7 +342,7 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
 		ieee80211_crypt_delayed_deinit(ieee, crypt);
 	}
 
-	if (*crypt == NULL) {
+	if (*crypt == NULL && host_crypto) {
 		struct ieee80211_crypt_data *new_crypt;
 
 		/* take WEP into use */
@@ -355,49 +382,56 @@ int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
 				   key, escape_essid(sec.keys[key], len),
 				   erq->length, len);
 		sec.key_sizes[key] = len;
-		(*crypt)->ops->set_key(sec.keys[key], len, NULL,
-				       (*crypt)->priv);
+		if (*crypt)
+			(*crypt)->ops->set_key(sec.keys[key], len, NULL,
+					       (*crypt)->priv);
 		sec.flags |= (1 << key);
 		/* This ensures a key will be activated if no key is
 		 * explicitely set */
 		if (key == sec.active_key)
 			sec.flags |= SEC_ACTIVE_KEY;
-	} else {
-		len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
-					     NULL, (*crypt)->priv);
-		if (len == 0) {
-			/* Set a default key of all 0 */
-			IEEE80211_DEBUG_WX("Setting key %d to all zero.\n",
-					   key);
-			memset(sec.keys[key], 0, 13);
-			(*crypt)->ops->set_key(sec.keys[key], 13, NULL,
-					       (*crypt)->priv);
-			sec.key_sizes[key] = 13;
-			sec.flags |= (1 << key);
-		}
 
+	} else {
+		if (host_crypto) {
+			len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
+						     NULL, (*crypt)->priv);
+			if (len == 0) {
+				/* Set a default key of all 0 */
+				IEEE80211_DEBUG_WX("Setting key %d to all "
+						   "zero.\n", key);
+				memset(sec.keys[key], 0, 13);
+				(*crypt)->ops->set_key(sec.keys[key], 13, NULL,
+						       (*crypt)->priv);
+				sec.key_sizes[key] = 13;
+				sec.flags |= (1 << key);
+			}
+		}
 		/* No key data - just set the default TX key index */
 		if (key_provided) {
-			IEEE80211_DEBUG_WX
-			    ("Setting key %d to default Tx key.\n", key);
+			IEEE80211_DEBUG_WX("Setting key %d to default Tx "
+					   "key.\n", key);
 			ieee->tx_keyidx = key;
 			sec.active_key = key;
 			sec.flags |= SEC_ACTIVE_KEY;
 		}
 	}
-
-      done:
-	ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
-	sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
-	sec.flags |= SEC_AUTH_MODE;
-	IEEE80211_DEBUG_WX("Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ?
-			   "OPEN" : "SHARED KEY");
+	if (erq->flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) {
+		ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
+		sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
+		    WLAN_AUTH_SHARED_KEY;
+		sec.flags |= SEC_AUTH_MODE;
+		IEEE80211_DEBUG_WX("Auth: %s\n",
+				   sec.auth_mode == WLAN_AUTH_OPEN ?
+				   "OPEN" : "SHARED KEY");
+	}
 
 	/* For now we just support WEP, so only set that security level...
 	 * TODO: When WPA is added this is one place that needs to change */
 	sec.flags |= SEC_LEVEL;
 	sec.level = SEC_LEVEL_1;	/* 40 and 104 bit WEP */
+	sec.encode_alg[key] = SEC_ALG_WEP;
 
+      done:
 	if (ieee->set_security)
 		ieee->set_security(dev, &sec);
 
@@ -422,6 +456,7 @@ int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
 	struct iw_point *erq = &(wrqu->encoding);
 	int len, key;
 	struct ieee80211_crypt_data *crypt;
+	struct ieee80211_security *sec = &ieee->sec;
 
 	IEEE80211_DEBUG_WX("GET_ENCODE\n");
 
@@ -436,23 +471,16 @@ int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
 	crypt = ieee->crypt[key];
 	erq->flags = key + 1;
 
-	if (crypt == NULL || crypt->ops == NULL) {
+	if (!sec->enabled) {
 		erq->length = 0;
 		erq->flags |= IW_ENCODE_DISABLED;
 		return 0;
 	}
 
-	if (strcmp(crypt->ops->name, "WEP") != 0) {
-		/* only WEP is supported with wireless extensions, so just
-		 * report that encryption is used */
-		erq->length = 0;
-		erq->flags |= IW_ENCODE_ENABLED;
-		return 0;
-	}
+	len = sec->key_sizes[key];
+	memcpy(keybuf, sec->keys[key], len);
 
-	len = crypt->ops->get_key(keybuf, WEP_KEY_LEN, NULL, crypt->priv);
 	erq->length = (len >= 0 ? len : 0);
-
 	erq->flags |= IW_ENCODE_ENABLED;
 
 	if (ieee->open_wep)
@@ -463,6 +491,240 @@ int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
 	return 0;
 }
 
+int ieee80211_wx_set_encodeext(struct ieee80211_device *ieee,
+			       struct iw_request_info *info,
+			       union iwreq_data *wrqu, char *extra)
+{
+	struct net_device *dev = ieee->dev;
+	struct iw_point *encoding = &wrqu->encoding;
+	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
+	int i, idx, ret = 0;
+	int group_key = 0;
+	const char *alg, *module;
+	struct ieee80211_crypto_ops *ops;
+	struct ieee80211_crypt_data **crypt;
+
+	struct ieee80211_security sec = {
+		.flags = 0,
+	};
+
+	idx = encoding->flags & IW_ENCODE_INDEX;
+	if (idx) {
+		if (idx < 1 || idx > WEP_KEYS)
+			return -EINVAL;
+		idx--;
+	} else
+		idx = ieee->tx_keyidx;
+
+	if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
+		crypt = &ieee->crypt[idx];
+		group_key = 1;
+	} else {
+		if (idx != 0)
+			return -EINVAL;
+		if (ieee->iw_mode == IW_MODE_INFRA)
+			crypt = &ieee->crypt[idx];
+		else
+			return -EINVAL;
+	}
+
+	sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
+	if ((encoding->flags & IW_ENCODE_DISABLED) ||
+	    ext->alg == IW_ENCODE_ALG_NONE) {
+		if (*crypt)
+			ieee80211_crypt_delayed_deinit(ieee, crypt);
+
+		for (i = 0; i < WEP_KEYS; i++)
+			if (ieee->crypt[i] != NULL)
+				break;
+
+		if (i == WEP_KEYS) {
+			sec.enabled = 0;
+			sec.encrypt = 0;
+			sec.level = SEC_LEVEL_0;
+			sec.flags |= SEC_LEVEL;
+		}
+		goto done;
+	}
+
+	sec.enabled = 1;
+	sec.encrypt = 1;
+
+	if (group_key ? !ieee->host_mc_decrypt :
+	    !(ieee->host_encrypt || ieee->host_decrypt ||
+	      ieee->host_encrypt_msdu))
+		goto skip_host_crypt;
+
+	switch (ext->alg) {
+	case IW_ENCODE_ALG_WEP:
+		alg = "WEP";
+		module = "ieee80211_crypt_wep";
+		break;
+	case IW_ENCODE_ALG_TKIP:
+		alg = "TKIP";
+		module = "ieee80211_crypt_tkip";
+		break;
+	case IW_ENCODE_ALG_CCMP:
+		alg = "CCMP";
+		module = "ieee80211_crypt_ccmp";
+		break;
+	default:
+		IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
+				   dev->name, ext->alg);
+		ret = -EINVAL;
+		goto done;
+	}
+
+	ops = ieee80211_get_crypto_ops(alg);
+	if (ops == NULL) {
+		request_module(module);
+		ops = ieee80211_get_crypto_ops(alg);
+	}
+	if (ops == NULL) {
+		IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
+				   dev->name, ext->alg);
+		ret = -EINVAL;
+		goto done;
+	}
+
+	if (*crypt == NULL || (*crypt)->ops != ops) {
+		struct ieee80211_crypt_data *new_crypt;
+
+		ieee80211_crypt_delayed_deinit(ieee, crypt);
+
+		new_crypt = (struct ieee80211_crypt_data *)
+		    kmalloc(sizeof(*new_crypt), GFP_KERNEL);
+		if (new_crypt == NULL) {
+			ret = -ENOMEM;
+			goto done;
+		}
+		memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
+		new_crypt->ops = ops;
+		if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
+			new_crypt->priv = new_crypt->ops->init(idx);
+		if (new_crypt->priv == NULL) {
+			kfree(new_crypt);
+			ret = -EINVAL;
+			goto done;
+		}
+		*crypt = new_crypt;
+	}
+
+	if (ext->key_len > 0 && (*crypt)->ops->set_key &&
+	    (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
+				   (*crypt)->priv) < 0) {
+		IEEE80211_DEBUG_WX("%s: key setting failed\n", dev->name);
+		ret = -EINVAL;
+		goto done;
+	}
+
+      skip_host_crypt:
+	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
+		ieee->tx_keyidx = idx;
+		sec.active_key = idx;
+		sec.flags |= SEC_ACTIVE_KEY;
+	}
+
+	if (ext->alg != IW_ENCODE_ALG_NONE) {
+		memcpy(sec.keys[idx], ext->key, ext->key_len);
+		sec.key_sizes[idx] = ext->key_len;
+		sec.flags |= (1 << idx);
+		if (ext->alg == IW_ENCODE_ALG_WEP) {
+			sec.encode_alg[idx] = SEC_ALG_WEP;
+			sec.flags |= SEC_LEVEL;
+			sec.level = SEC_LEVEL_1;
+		} else if (ext->alg == IW_ENCODE_ALG_TKIP) {
+			sec.encode_alg[idx] = SEC_ALG_TKIP;
+			sec.flags |= SEC_LEVEL;
+			sec.level = SEC_LEVEL_2;
+		} else if (ext->alg == IW_ENCODE_ALG_CCMP) {
+			sec.encode_alg[idx] = SEC_ALG_CCMP;
+			sec.flags |= SEC_LEVEL;
+			sec.level = SEC_LEVEL_3;
+		}
+		/* Don't set sec level for group keys. */
+		if (group_key)
+			sec.flags &= ~SEC_LEVEL;
+	}
+      done:
+	if (ieee->set_security)
+		ieee->set_security(ieee->dev, &sec);
+
+	/*
+	 * Do not reset port if card is in Managed mode since resetting will
+	 * generate new IEEE 802.11 authentication which may end up in looping
+	 * with IEEE 802.1X. If your hardware requires a reset after WEP
+	 * configuration (for example... Prism2), implement the reset_port in
+	 * the callbacks structures used to initialize the 802.11 stack.
+	 */
+	if (ieee->reset_on_keychange &&
+	    ieee->iw_mode != IW_MODE_INFRA &&
+	    ieee->reset_port && ieee->reset_port(dev)) {
+		IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name);
+		return -EINVAL;
+	}
+
+	return ret;
+}
+
+int ieee80211_wx_get_encodeext(struct ieee80211_device *ieee,
+			       struct iw_request_info *info,
+			       union iwreq_data *wrqu, char *extra)
+{
+	struct iw_point *encoding = &wrqu->encoding;
+	struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
+	struct ieee80211_security *sec = &ieee->sec;
+	int idx, max_key_len;
+
+	max_key_len = encoding->length - sizeof(*ext);
+	if (max_key_len < 0)
+		return -EINVAL;
+
+	idx = encoding->flags & IW_ENCODE_INDEX;
+	if (idx) {
+		if (idx < 1 || idx > WEP_KEYS)
+			return -EINVAL;
+		idx--;
+	} else
+		idx = ieee->tx_keyidx;
+
+	if (!ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY)
+		if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
+			return -EINVAL;
+
+	encoding->flags = idx + 1;
+	memset(ext, 0, sizeof(*ext));
+
+	if (!sec->enabled) {
+		ext->alg = IW_ENCODE_ALG_NONE;
+		ext->key_len = 0;
+		encoding->flags |= IW_ENCODE_DISABLED;
+	} else {
+		if (sec->encode_alg[idx] == SEC_ALG_WEP)
+			ext->alg = IW_ENCODE_ALG_WEP;
+		else if (sec->encode_alg[idx] == SEC_ALG_TKIP)
+			ext->alg = IW_ENCODE_ALG_TKIP;
+		else if (sec->encode_alg[idx] == SEC_ALG_CCMP)
+			ext->alg = IW_ENCODE_ALG_CCMP;
+		else
+			return -EINVAL;
+
+		ext->key_len = sec->key_sizes[idx];
+		memcpy(ext->key, sec->keys[idx], ext->key_len);
+		encoding->flags |= IW_ENCODE_ENABLED;
+		if (ext->key_len &&
+		    (ext->alg == IW_ENCODE_ALG_TKIP ||
+		     ext->alg == IW_ENCODE_ALG_CCMP))
+			ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
+
+	}
+
+	return 0;
+}
+
+EXPORT_SYMBOL(ieee80211_wx_set_encodeext);
+EXPORT_SYMBOL(ieee80211_wx_get_encodeext);
+
 EXPORT_SYMBOL(ieee80211_wx_get_scan);
 EXPORT_SYMBOL(ieee80211_wx_set_encode);
 EXPORT_SYMBOL(ieee80211_wx_get_encode);

net/ipv4/devinet.c

@@ -715,6 +715,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
 			break;
 		ret = 0;
 		if (ifa->ifa_mask != sin->sin_addr.s_addr) {
+			u32 old_mask = ifa->ifa_mask;
 			inet_del_ifa(in_dev, ifap, 0);
 			ifa->ifa_mask = sin->sin_addr.s_addr;
 			ifa->ifa_prefixlen = inet_mask_len(ifa->ifa_mask);
@@ -728,7 +729,7 @@ int devinet_ioctl(unsigned int cmd, void __user *arg)
 			if ((dev->flags & IFF_BROADCAST) &&
 			    (ifa->ifa_prefixlen < 31) &&
 			    (ifa->ifa_broadcast ==
-			     (ifa->ifa_local|~ifa->ifa_mask))) {
+			     (ifa->ifa_local|~old_mask))) {
 				ifa->ifa_broadcast = (ifa->ifa_local |
 						      ~sin->sin_addr.s_addr);
 			}

net/ipv4/fib_trie.c

@@ -2404,7 +2404,7 @@ static int fib_route_seq_show(struct seq_file *seq, void *v)
 		prefix = htonl(l->key);
 
 		list_for_each_entry_rcu(fa, &li->falh, fa_list) {
-			const struct fib_info *fi = rcu_dereference(fa->fa_info);
+			const struct fib_info *fi = fa->fa_info;
 			unsigned flags = fib_flag_trans(fa->fa_type, mask, fi);
 
 			if (fa->fa_type == RTN_BROADCAST

net/ipv4/icmp.c

@@ -1108,12 +1108,9 @@ void __init icmp_init(struct net_proto_family *ops)
 	struct inet_sock *inet;
 	int i;
 
-	for (i = 0; i < NR_CPUS; i++) {
+	for_each_cpu(i) {
 		int err;
 
-		if (!cpu_possible(i))
-			continue;
-
 		err = sock_create_kern(PF_INET, SOCK_RAW, IPPROTO_ICMP,
 				       &per_cpu(__icmp_socket, i));
 

net/ipv4/ip_output.c

@@ -1023,10 +1023,7 @@ ssize_t	ip_append_page(struct sock *sk, struct page *page,
 			int alloclen;
 
 			skb_prev = skb;
-			if (skb_prev)
-				fraggap = skb_prev->len - maxfraglen;
-			else
-				fraggap = 0;
+			fraggap = skb_prev->len - maxfraglen;
 
 			alloclen = fragheaderlen + hh_len + fraggap + 15;
 			skb = sock_wmalloc(sk, alloclen, 1, sk->sk_allocation);