lib80211: absorb crypto bits from net/ieee80211

These bits are shared already between ipw2x00 and hostap, and could
probably be shared both more cleanly and with other drivers. This
commit simply relocates the code to lib80211 and adjusts the drivers
appropriately.

Signed-off-by: John W. Linville <[e-mail]>

drivers/net/wireless/hostap/Kconfig

···
 	tristate "IEEE 802.11 for Host AP (Prism2/2.5/3 and WEP/TKIP/CCMP)"
 	depends on WLAN_80211
 	select WIRELESS_EXT
-	select IEEE80211
-	select IEEE80211_CRYPT_WEP
+	select LIB80211
+	select LIB80211_CRYPT_WEP
+	select LIB80211_CRYPT_TKIP
+	select LIB80211_CRYPT_CCMP
 	---help---
 	Shared driver code for IEEE 802.11b wireless cards based on
 	Intersil Prism2/2.5/3 chipset. This driver supports so called

drivers/net/wireless/hostap/hostap.h

···
 int ap_control_kick_mac(struct ap_data *ap, struct net_device *dev, u8 *mac);
 void ap_control_kickall(struct ap_data *ap);
 void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent,
-			 struct ieee80211_crypt_data ***crypt);
+			 struct lib80211_crypt_data ***crypt);
 int prism2_ap_get_sta_qual(local_info_t *local, struct sockaddr addr[],
 			   struct iw_quality qual[], int buf_size,
 			   int aplist);

drivers/net/wireless/hostap/hostap_80211.h

···
 #define HOSTAP_80211_H
 
 #include <linux/types.h>
-#include <net/ieee80211_crypt.h>
+#include <net/ieee80211.h>
 
 struct hostap_ieee80211_mgmt {
 	__le16 frame_control;

drivers/net/wireless/hostap/hostap_80211_rx.c

···
 #include <linux/etherdevice.h>
-#include <net/ieee80211_crypt.h>
+#include <net/lib80211.h>
 
 #include "hostap_80211.h"
 #include "hostap.h"
···
 /* Called only as a tasklet (software IRQ) */
 static int
 hostap_rx_frame_decrypt(local_info_t *local, struct sk_buff *skb,
-			struct ieee80211_crypt_data *crypt)
+			struct lib80211_crypt_data *crypt)
 {
 	struct ieee80211_hdr_4addr *hdr;
 	int res, hdrlen;
···
 /* Called only as a tasklet (software IRQ) */
 static int
 hostap_rx_frame_decrypt_msdu(local_info_t *local, struct sk_buff *skb,
-			     int keyidx, struct ieee80211_crypt_data *crypt)
+			     int keyidx, struct lib80211_crypt_data *crypt)
 {
 	struct ieee80211_hdr_4addr *hdr;
 	int res, hdrlen;
···
 	int from_assoc_ap = 0;
 	u8 dst[ETH_ALEN];
 	u8 src[ETH_ALEN];
-	struct ieee80211_crypt_data *crypt = NULL;
+	struct lib80211_crypt_data *crypt = NULL;
 	void *sta = NULL;
 	int keyidx = 0;
 
···
 		int idx = 0;
 		if (skb->len >= hdrlen + 3)
 			idx = skb->data[hdrlen + 3] >> 6;
-		crypt = local->crypt[idx];
+		crypt = local->crypt_info.crypt[idx];
 		sta = NULL;
 
 		/* Use station specific key to override default keys if the

drivers/net/wireless/hostap/hostap_80211_tx.c

···
 
 /* Called only from software IRQ */
 static struct sk_buff * hostap_tx_encrypt(struct sk_buff *skb,
-					  struct ieee80211_crypt_data *crypt)
+					  struct lib80211_crypt_data *crypt)
 {
 	struct hostap_interface *iface;
 	local_info_t *local;
···
 	if (local->host_encrypt) {
 		/* Set crypt to default algorithm and key; will be replaced in
 		 * AP code if STA has own alg/key */
-		tx.crypt = local->crypt[local->tx_keyidx];
+		tx.crypt = local->crypt_info.crypt[local->crypt_info.tx_keyidx];
 		tx.host_encrypt = 1;
 	} else {
 		tx.crypt = NULL;
···
 
 	if (tx.crypt && (!tx.crypt->ops || !tx.crypt->ops->encrypt_mpdu))
 		tx.crypt = NULL;
-	else if ((tx.crypt || local->crypt[local->tx_keyidx]) && !no_encrypt) {
+	else if ((tx.crypt ||
+		 local->crypt_info.crypt[local->crypt_info.tx_keyidx]) &&
+		 !no_encrypt) {
 		/* Add ISWEP flag both for firmware and host based encryption
 		 */
 		fc |= IEEE80211_FCTL_PROTECTED;

drivers/net/wireless/hostap/hostap_ap.c

···
 
 static void ap_crypt_init(struct ap_data *ap)
 {
-	ap->crypt = ieee80211_get_crypto_ops("WEP");
+	ap->crypt = lib80211_get_crypto_ops("WEP");
 
 	if (ap->crypt) {
 		if (ap->crypt->init) {
···
 
 	if (ap->crypt == NULL) {
 		printk(KERN_WARNING "AP could not initialize WEP: load module "
-		       "ieee80211_crypt_wep.ko\n");
+		       "lib80211_crypt_wep.ko\n");
 	}
 }
 
···
 	__le16 *pos;
 	u16 resp = WLAN_STATUS_SUCCESS, fc;
 	struct sta_info *sta = NULL;
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	char *txt = "";
 
 	len = skb->len - IEEE80211_MGMT_HDR_LEN;
···
 		int idx = 0;
 		if (skb->len >= hdrlen + 3)
 			idx = skb->data[hdrlen + 3] >> 6;
-		crypt = local->crypt[idx];
+		crypt = local->crypt_info.crypt[idx];
 	}
 
 	pos = (__le16 *) (skb->data + IEEE80211_MGMT_HDR_LEN);
···
 /* Called only as a tasklet (software IRQ) */
 int hostap_handle_sta_crypto(local_info_t *local,
 			     struct ieee80211_hdr_4addr *hdr,
-			     struct ieee80211_crypt_data **crypt,
+			     struct lib80211_crypt_data **crypt,
 			     void **sta_ptr)
 {
 	struct sta_info *sta;
···
 
 
 void * ap_crypt_get_ptrs(struct ap_data *ap, u8 *addr, int permanent,
-			 struct ieee80211_crypt_data ***crypt)
+			 struct lib80211_crypt_data ***crypt)
 {
 	struct sta_info *sta;
 

drivers/net/wireless/hostap/hostap_ap.h

···
 	u32 tx_since_last_failure;
 	u32 tx_consecutive_exc;
 
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 
 	int ap; /* whether this station is an AP */
 
···
 
 	/* WEP operations for generating challenges to be used with shared key
 	 * authentication */
-	struct ieee80211_crypto_ops *crypt;
+	struct lib80211_crypto_ops *crypt;
 	void *crypt_priv;
 #endif /* PRISM2_NO_KERNEL_IEEE80211_MGMT */
 };
···
 struct hostap_tx_data {
 	struct sk_buff *skb;
 	int host_encrypt;
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	void *sta_ptr;
 };
 ap_tx_ret hostap_handle_sta_tx(local_info_t *local, struct hostap_tx_data *tx);
···
 			       struct hostap_80211_rx_status *rx_stats,
 			       int wds);
 int hostap_handle_sta_crypto(local_info_t *local, struct ieee80211_hdr_4addr *hdr,
-			     struct ieee80211_crypt_data **crypt,
+			     struct lib80211_crypt_data **crypt,
 			     void **sta_ptr);
 int hostap_is_sta_assoc(struct ap_data *ap, u8 *sta_addr);
 int hostap_is_sta_authorized(struct ap_data *ap, u8 *sta_addr);

drivers/net/wireless/hostap/hostap_hw.c

···
 #include <linux/wireless.h>
 #include <net/iw_handler.h>
 #include <net/ieee80211.h>
-#include <net/ieee80211_crypt.h>
+#include <net/lib80211.h>
 #include <asm/irq.h>
 
 #include "hostap_80211.h"
···
 static void prism2_crypt_deinit_entries(local_info_t *local, int force)
 {
 	struct list_head *ptr, *n;
-	struct ieee80211_crypt_data *entry;
+	struct lib80211_crypt_data *entry;
 
-	for (ptr = local->crypt_deinit_list.next, n = ptr->next;
-	     ptr != &local->crypt_deinit_list; ptr = n, n = ptr->next) {
-		entry = list_entry(ptr, struct ieee80211_crypt_data, list);
+	for (ptr = local->crypt_info.crypt_deinit_list.next, n = ptr->next;
+	     ptr != &local->crypt_info.crypt_deinit_list;
+	     ptr = n, n = ptr->next) {
+		entry = list_entry(ptr, struct lib80211_crypt_data, list);
 
 		if (atomic_read(&entry->refcnt) != 0 && !force)
 			continue;
···
 
 	spin_lock_irqsave(&local->lock, flags);
 	prism2_crypt_deinit_entries(local, 0);
-	if (!list_empty(&local->crypt_deinit_list)) {
+	if (!list_empty(&local->crypt_info.crypt_deinit_list)) {
 		printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
 		       "deletion list\n", local->dev->name);
-		local->crypt_deinit_timer.expires = jiffies + HZ;
-		add_timer(&local->crypt_deinit_timer);
+		local->crypt_info.crypt_deinit_timer.expires = jiffies + HZ;
+		add_timer(&local->crypt_info.crypt_deinit_timer);
 	}
 	spin_unlock_irqrestore(&local->lock, flags);
 
···
 
 	INIT_LIST_HEAD(&local->cmd_queue);
 	init_waitqueue_head(&local->hostscan_wq);
-	INIT_LIST_HEAD(&local->crypt_deinit_list);
-	init_timer(&local->crypt_deinit_timer);
-	local->crypt_deinit_timer.data = (unsigned long) local;
-	local->crypt_deinit_timer.function = prism2_crypt_deinit_handler;
+
+	local->crypt_info.name = dev->name;
+	local->crypt_info.lock = &local->lock;
+	INIT_LIST_HEAD(&local->crypt_info.crypt_deinit_list);
+	init_timer(&local->crypt_info.crypt_deinit_timer);
+	local->crypt_info.crypt_deinit_timer.data = (unsigned long) local;
+	local->crypt_info.crypt_deinit_timer.function = prism2_crypt_deinit_handler;
 
 	init_timer(&local->passive_scan_timer);
 	local->passive_scan_timer.data = (unsigned long) local;
···
 
 	flush_scheduled_work();
 
-	if (timer_pending(&local->crypt_deinit_timer))
-		del_timer(&local->crypt_deinit_timer);
+	if (timer_pending(&local->crypt_info.crypt_deinit_timer))
+		del_timer(&local->crypt_info.crypt_deinit_timer);
 	prism2_crypt_deinit_entries(local, 1);
 
 	if (timer_pending(&local->passive_scan_timer))
···
 		prism2_callback(local, PRISM2_CALLBACK_DISABLE);
 
 	for (i = 0; i < WEP_KEYS; i++) {
-		struct ieee80211_crypt_data *crypt = local->crypt[i];
+		struct lib80211_crypt_data *crypt = local->crypt_info.crypt[i];
 		if (crypt) {
 			if (crypt->ops)
 				crypt->ops->deinit(crypt->priv);
 			kfree(crypt);
-			local->crypt[i] = NULL;
+			local->crypt_info.crypt[i] = NULL;
 		}
 	}
 

drivers/net/wireless/hostap/hostap_ioctl.c

···
 
 #include <linux/types.h>
 #include <linux/ethtool.h>
-#include <net/ieee80211_crypt.h>
+#include <net/lib80211.h>
 
 #include "hostap_wlan.h"
 #include "hostap.h"
···
 
 
 static void prism2_crypt_delayed_deinit(local_info_t *local,
-					struct ieee80211_crypt_data **crypt)
+					struct lib80211_crypt_data **crypt)
 {
-	struct ieee80211_crypt_data *tmp;
+	struct lib80211_crypt_data *tmp;
 	unsigned long flags;
 
 	tmp = *crypt;
···
 	 * locking. */
 
 	spin_lock_irqsave(&local->lock, flags);
-	list_add(&tmp->list, &local->crypt_deinit_list);
-	if (!timer_pending(&local->crypt_deinit_timer)) {
-		local->crypt_deinit_timer.expires = jiffies + HZ;
-		add_timer(&local->crypt_deinit_timer);
+	list_add(&tmp->list, &local->crypt_info.crypt_deinit_list);
+	if (!timer_pending(&local->crypt_info.crypt_deinit_timer)) {
+		local->crypt_info.crypt_deinit_timer.expires = jiffies + HZ;
+		add_timer(&local->crypt_info.crypt_deinit_timer);
 	}
 	spin_unlock_irqrestore(&local->lock, flags);
 }
···
 	struct hostap_interface *iface;
 	local_info_t *local;
 	int i;
-	struct ieee80211_crypt_data **crypt;
+	struct lib80211_crypt_data **crypt;
 
 	iface = netdev_priv(dev);
 	local = iface->local;
 
 	i = erq->flags & IW_ENCODE_INDEX;
 	if (i < 1 || i > 4)
-		i = local->tx_keyidx;
+		i = local->crypt_info.tx_keyidx;
 	else
 		i--;
 	if (i < 0 || i >= WEP_KEYS)
 		return -EINVAL;
 
-	crypt = &local->crypt[i];
+	crypt = &local->crypt_info.crypt[i];
 
 	if (erq->flags & IW_ENCODE_DISABLED) {
 		if (*crypt)
···
 	}
 
 	if (*crypt == NULL) {
-		struct ieee80211_crypt_data *new_crypt;
+		struct lib80211_crypt_data *new_crypt;
 
 		/* take WEP into use */
-		new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
+		new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
 				GFP_KERNEL);
 		if (new_crypt == NULL)
 			return -ENOMEM;
-		new_crypt->ops = ieee80211_get_crypto_ops("WEP");
+		new_crypt->ops = lib80211_get_crypto_ops("WEP");
 		if (!new_crypt->ops) {
-			request_module("ieee80211_crypt_wep");
-			new_crypt->ops = ieee80211_get_crypto_ops("WEP");
+			request_module("lib80211_crypt_wep");
+			new_crypt->ops = lib80211_get_crypto_ops("WEP");
 		}
 		if (new_crypt->ops)
 			new_crypt->priv = new_crypt->ops->init(i);
···
 			memset(keybuf + erq->length, 0, len - erq->length);
 		(*crypt)->ops->set_key(keybuf, len, NULL, (*crypt)->priv);
 		for (j = 0; j < WEP_KEYS; j++) {
-			if (j != i && local->crypt[j]) {
+			if (j != i && local->crypt_info.crypt[j]) {
 				first = 0;
 				break;
 			}
 		}
 		if (first)
-			local->tx_keyidx = i;
+			local->crypt_info.tx_keyidx = i;
 	} else {
 		/* No key data - just set the default TX key index */
-		local->tx_keyidx = i;
+		local->crypt_info.tx_keyidx = i;
 	}
 
  done:
···
 	local_info_t *local;
 	int i, len;
 	u16 val;
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 
 	iface = netdev_priv(dev);
 	local = iface->local;
 
 	i = erq->flags & IW_ENCODE_INDEX;
 	if (i < 1 || i > 4)
-		i = local->tx_keyidx;
+		i = local->crypt_info.tx_keyidx;
 	else
 		i--;
 	if (i < 0 || i >= WEP_KEYS)
 		return -EINVAL;
 
-	crypt = local->crypt[i];
+	crypt = local->crypt_info.crypt[i];
 	erq->flags = i + 1;
 
 	if (crypt == NULL || crypt->ops == NULL) {
···
 	local_info_t *local = iface->local;
 	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 	int i, ret = 0;
-	struct ieee80211_crypto_ops *ops;
-	struct ieee80211_crypt_data **crypt;
+	struct lib80211_crypto_ops *ops;
+	struct lib80211_crypt_data **crypt;
 	void *sta_ptr;
 	u8 *addr;
 	const char *alg, *module;
···
 	if (i > WEP_KEYS)
 		return -EINVAL;
 	if (i < 1 || i > WEP_KEYS)
-		i = local->tx_keyidx;
+		i = local->crypt_info.tx_keyidx;
 	else
 		i--;
 	if (i < 0 || i >= WEP_KEYS)
···
 	if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff &&
 	    addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) {
 		sta_ptr = NULL;
-		crypt = &local->crypt[i];
+		crypt = &local->crypt_info.crypt[i];
 	} else {
 		if (i != 0)
 			return -EINVAL;
···
 				 * is emulated by using default key idx 0.
 				 */
 				i = 0;
-				crypt = &local->crypt[i];
+				crypt = &local->crypt_info.crypt[i];
 			} else
 				return -EINVAL;
 		}
···
 	switch (ext->alg) {
 	case IW_ENCODE_ALG_WEP:
 		alg = "WEP";
-		module = "ieee80211_crypt_wep";
+		module = "lib80211_crypt_wep";
 		break;
 	case IW_ENCODE_ALG_TKIP:
 		alg = "TKIP";
-		module = "ieee80211_crypt_tkip";
+		module = "lib80211_crypt_tkip";
 		break;
 	case IW_ENCODE_ALG_CCMP:
 		alg = "CCMP";
-		module = "ieee80211_crypt_ccmp";
+		module = "lib80211_crypt_ccmp";
 		break;
 	default:
 		printk(KERN_DEBUG "%s: unsupported algorithm %d\n",
···
 		goto done;
 	}
 
-	ops = ieee80211_get_crypto_ops(alg);
+	ops = lib80211_get_crypto_ops(alg);
 	if (ops == NULL) {
 		request_module(module);
-		ops = ieee80211_get_crypto_ops(alg);
+		ops = lib80211_get_crypto_ops(alg);
 	}
 	if (ops == NULL) {
 		printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n",
···
 	}
 
 	if (*crypt == NULL || (*crypt)->ops != ops) {
-		struct ieee80211_crypt_data *new_crypt;
+		struct lib80211_crypt_data *new_crypt;
 
 		prism2_crypt_delayed_deinit(local, crypt);
 
-		new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
+		new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
 				GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
···
 
 	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
 		if (!sta_ptr)
-			local->tx_keyidx = i;
+			local->crypt_info.tx_keyidx = i;
 	}
 
 
 	if (sta_ptr == NULL && ext->key_len > 0) {
 		int first = 1, j;
 		for (j = 0; j < WEP_KEYS; j++) {
-			if (j != i && local->crypt[j]) {
+			if (j != i && local->crypt_info.crypt[j]) {
 				first = 0;
 				break;
 			}
 		}
 		if (first)
-			local->tx_keyidx = i;
+			local->crypt_info.tx_keyidx = i;
 	}
 
  done:
···
 {
 	struct hostap_interface *iface = netdev_priv(dev);
 	local_info_t *local = iface->local;
-	struct ieee80211_crypt_data **crypt;
+	struct lib80211_crypt_data **crypt;
 	void *sta_ptr;
 	int max_key_len, i;
 	struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
···
 
 	i = erq->flags & IW_ENCODE_INDEX;
 	if (i < 1 || i > WEP_KEYS)
-		i = local->tx_keyidx;
+		i = local->crypt_info.tx_keyidx;
 	else
 		i--;
 
···
 	if (addr[0] == 0xff && addr[1] == 0xff && addr[2] == 0xff &&
 	    addr[3] == 0xff && addr[4] == 0xff && addr[5] == 0xff) {
 		sta_ptr = NULL;
-		crypt = &local->crypt[i];
+		crypt = &local->crypt_info.crypt[i];
 	} else {
 		i = 0;
 		sta_ptr = ap_crypt_get_ptrs(local->ap, addr, 0, &crypt);
···
 				       int param_len)
 {
 	int ret = 0;
-	struct ieee80211_crypto_ops *ops;
-	struct ieee80211_crypt_data **crypt;
+	struct lib80211_crypto_ops *ops;
+	struct lib80211_crypt_data **crypt;
 	void *sta_ptr;
 
 	param->u.crypt.err = 0;
···
 		if (param->u.crypt.idx >= WEP_KEYS)
 			return -EINVAL;
 		sta_ptr = NULL;
-		crypt = &local->crypt[param->u.crypt.idx];
+		crypt = &local->crypt_info.crypt[param->u.crypt.idx];
 	} else {
 		if (param->u.crypt.idx)
 			return -EINVAL;
···
 		goto done;
 	}
 
-	ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
+	ops = lib80211_get_crypto_ops(param->u.crypt.alg);
 	if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0) {
-		request_module("ieee80211_crypt_wep");
-		ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
+		request_module("lib80211_crypt_wep");
+		ops = lib80211_get_crypto_ops(param->u.crypt.alg);
 	} else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0) {
-		request_module("ieee80211_crypt_tkip");
-		ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
+		request_module("lib80211_crypt_tkip");
+		ops = lib80211_get_crypto_ops(param->u.crypt.alg);
 	} else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0) {
-		request_module("ieee80211_crypt_ccmp");
-		ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
+		request_module("lib80211_crypt_ccmp");
+		ops = lib80211_get_crypto_ops(param->u.crypt.alg);
 	}
 	if (ops == NULL) {
 		printk(KERN_DEBUG "%s: unknown crypto alg '%s'\n",
···
 	local->host_decrypt = local->host_encrypt = 1;
 
 	if (*crypt == NULL || (*crypt)->ops != ops) {
-		struct ieee80211_crypt_data *new_crypt;
+		struct lib80211_crypt_data *new_crypt;
 
 		prism2_crypt_delayed_deinit(local, crypt);
 
-		new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
+		new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
 				GFP_KERNEL);
 		if (new_crypt == NULL) {
 			ret = -ENOMEM;
···
 
 	if (param->u.crypt.flags & HOSTAP_CRYPT_FLAG_SET_TX_KEY) {
 		if (!sta_ptr)
-			local->tx_keyidx = param->u.crypt.idx;
+			local->crypt_info.tx_keyidx = param->u.crypt.idx;
 		else if (param->u.crypt.idx) {
 			printk(KERN_DEBUG "%s: TX key idx setting failed\n",
 			       local->dev->name);
···
 				       struct prism2_hostapd_param *param,
 				       int param_len)
 {
-	struct ieee80211_crypt_data **crypt;
+	struct lib80211_crypt_data **crypt;
 	void *sta_ptr;
 	int max_key_len;
 
···
 	    param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
 		sta_ptr = NULL;
 		if (param->u.crypt.idx >= WEP_KEYS)
-			param->u.crypt.idx = local->tx_keyidx;
-		crypt = &local->crypt[param->u.crypt.idx];
+			param->u.crypt.idx = local->crypt_info.tx_keyidx;
+		crypt = &local->crypt_info.crypt[param->u.crypt.idx];
 	} else {
 		param->u.crypt.idx = 0;
 		sta_ptr = ap_crypt_get_ptrs(local->ap, param->sta_addr, 0,

drivers/net/wireless/hostap/hostap_main.c

···
 #include <net/net_namespace.h>
 #include <net/iw_handler.h>
 #include <net/ieee80211.h>
-#include <net/ieee80211_crypt.h>
+#include <net/lib80211.h>
 #include <asm/uaccess.h>
 
 #include "hostap_wlan.h"
···
 	char keybuf[WEP_KEY_LEN + 1];
 	enum { NONE, WEP, OTHER } encrypt_type;
 
-	idx = local->tx_keyidx;
-	if (local->crypt[idx] == NULL || local->crypt[idx]->ops == NULL)
+	idx = local->crypt_info.tx_keyidx;
+	if (local->crypt_info.crypt[idx] == NULL ||
+	    local->crypt_info.crypt[idx]->ops == NULL)
 		encrypt_type = NONE;
-	else if (strcmp(local->crypt[idx]->ops->name, "WEP") == 0)
+	else if (strcmp(local->crypt_info.crypt[idx]->ops->name, "WEP") == 0)
 		encrypt_type = WEP;
 	else
 		encrypt_type = OTHER;
···
 	/* 104-bit support seems to require that all the keys are set to the
 	 * same keylen */
 	keylen = 6; /* first 5 octets */
-	len = local->crypt[idx]->ops->get_key(keybuf, sizeof(keybuf),
-					      NULL, local->crypt[idx]->priv);
+	len = local->crypt_info.crypt[idx]->ops->get_key(keybuf, sizeof(keybuf), NULL,
+							   local->crypt_info.crypt[idx]->priv);
 	if (idx >= 0 && idx < WEP_KEYS && len > 5)
 		keylen = WEP_KEY_LEN + 1; /* first 13 octets */
 
 	for (i = 0; i < WEP_KEYS; i++) {
 		memset(keybuf, 0, sizeof(keybuf));
-		if (local->crypt[i]) {
-			(void) local->crypt[i]->ops->get_key(
+		if (local->crypt_info.crypt[i]) {
+			(void) local->crypt_info.crypt[i]->ops->get_key(
 				keybuf, sizeof(keybuf),
-				NULL, local->crypt[i]->priv);
+				NULL, local->crypt_info.crypt[i]->priv);
 		}
 		if (local->func->set_rid(local->dev,
 					 HFA384X_RID_CNFDEFAULTKEY0 + i,

drivers/net/wireless/hostap/hostap_proc.c

···
 
 #include <linux/types.h>
 #include <linux/proc_fs.h>
-#include <net/ieee80211_crypt.h>
+#include <net/lib80211.h>
 
 #include "hostap_wlan.h"
 #include "hostap.h"
···
 	p += sprintf(p, "dev_enabled=%d\n", local->dev_enabled);
 	p += sprintf(p, "sw_tick_stuck=%d\n", local->sw_tick_stuck);
 	for (i = 0; i < WEP_KEYS; i++) {
-		if (local->crypt[i] && local->crypt[i]->ops) {
-			p += sprintf(p, "crypt[%d]=%s\n",
-				     i, local->crypt[i]->ops->name);
+		if (local->crypt_info.crypt[i] &&
+		    local->crypt_info.crypt[i]->ops) {
+			p += sprintf(p, "crypt[%d]=%s\n", i,
+				     local->crypt_info.crypt[i]->ops->name);
 		}
 	}
 	p += sprintf(p, "pri_only=%d\n", local->pri_only);
···
 		return 0;
 	}
 
-	p += sprintf(p, "tx_keyidx=%d\n", local->tx_keyidx);
+	p += sprintf(p, "tx_keyidx=%d\n", local->crypt_info.tx_keyidx);
 	for (i = 0; i < WEP_KEYS; i++) {
-		if (local->crypt[i] && local->crypt[i]->ops &&
-		    local->crypt[i]->ops->print_stats) {
-			p = local->crypt[i]->ops->print_stats(
-				p, local->crypt[i]->priv);
+		if (local->crypt_info.crypt[i] &&
+		    local->crypt_info.crypt[i]->ops &&
+		    local->crypt_info.crypt[i]->ops->print_stats) {
+			p = local->crypt_info.crypt[i]->ops->print_stats(
+				p, local->crypt_info.crypt[i]->priv);
 		}
 	}
 

drivers/net/wireless/hostap/hostap_wlan.h

···
 #include <linux/mutex.h>
 #include <net/iw_handler.h>
 #include <net/ieee80211_radiotap.h>
+#include <net/lib80211.h>
 
 #include "hostap_config.h"
 #include "hostap_common.h"
···
 
 #define WEP_KEYS 4
 #define WEP_KEY_LEN 13
-	struct ieee80211_crypt_data *crypt[WEP_KEYS];
-	int tx_keyidx; /* default TX key index (crypt[tx_keyidx]) */
-	struct timer_list crypt_deinit_timer;
-	struct list_head crypt_deinit_list;
+	struct lib80211_crypt_info crypt_info;
 
 	int open_wep; /* allow unencrypted frames */
 	int host_encrypt;

drivers/net/wireless/ipw2100.c

···
 	else
 		len += sprintf(buf + len, "not connected\n");
 
-	DUMP_VAR(ieee->crypt[priv->ieee->tx_keyidx], "p");
+	DUMP_VAR(ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx], "p");
 	DUMP_VAR(status, "08lx");
 	DUMP_VAR(config, "08lx");
 	DUMP_VAR(capability, "08lx");
···
 			}
 		}
 
-		ipw2100_set_key_index(priv, priv->ieee->tx_keyidx, 1);
+		ipw2100_set_key_index(priv, priv->ieee->crypt_info.tx_keyidx, 1);
 	}
 
 	/* Always enable privacy so the Host can filter WEP packets if
···
 	struct ipw2100_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device *ieee = priv->ieee;
 	struct iw_param *param = &wrqu->param;
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	unsigned long flags;
 	int ret = 0;
 
···
 		break;
 
 	case IW_AUTH_TKIP_COUNTERMEASURES:
-		crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
+		crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
 		if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
 			break;
 
···
 {
 	struct ipw2100_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device *ieee = priv->ieee;
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	struct iw_param *param = &wrqu->param;
 	int ret = 0;
 
···
 		break;
 
 	case IW_AUTH_TKIP_COUNTERMEASURES:
-		crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
+		crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
 		if (!crypt || !crypt->ops->get_flags) {
 			IPW_DEBUG_WARNING("Can't get TKIP countermeasures: "
 					  "crypt not set!\n");

drivers/net/wireless/ipw2200.c

···
 	struct ipw_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device *ieee = priv->ieee;
 	struct iw_param *param = &wrqu->param;
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	unsigned long flags;
 	int ret = 0;
 
···
 		break;
 
 	case IW_AUTH_TKIP_COUNTERMEASURES:
-		crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
+		crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
 		if (!crypt || !crypt->ops->set_flags || !crypt->ops->get_flags)
 			break;
 
···
 {
 	struct ipw_priv *priv = ieee80211_priv(dev);
 	struct ieee80211_device *ieee = priv->ieee;
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	struct iw_param *param = &wrqu->param;
 	int ret = 0;
 
···
 		break;
 
 	case IW_AUTH_TKIP_COUNTERMEASURES:
-		crypt = priv->ieee->crypt[priv->ieee->tx_keyidx];
+		crypt = priv->ieee->crypt_info.crypt[priv->ieee->crypt_info.tx_keyidx];
 		if (!crypt || !crypt->ops->get_flags)
 			break;
 
···
 		case SEC_LEVEL_1:
 			tfd->u.data.tfd.tfd_24.mchdr.frame_ctl |=
 			    cpu_to_le16(IEEE80211_FCTL_PROTECTED);
-			tfd->u.data.key_index = priv->ieee->tx_keyidx;
-			if (priv->ieee->sec.key_sizes[priv->ieee->tx_keyidx] <=
+			tfd->u.data.key_index = priv->ieee->crypt_info.tx_keyidx;
+			if (priv->ieee->sec.key_sizes[priv->ieee->crypt_info.tx_keyidx] <=
 			    40)
 				tfd->u.data.key_index |= DCT_WEP_KEY_64Bit;
 			else

include/net/ieee80211.h

···
 #include <linux/wireless.h>
 #include <linux/ieee80211.h>
 
+#include <net/lib80211.h>
+
 #define IEEE80211_VERSION "git-1.1.13"
 
 #define IEEE80211_DATA_LEN		2304
···
 };
 
 struct ieee80211_device;
-
-#include "ieee80211_crypt.h"
 
 #define SEC_KEY_1		(1<<0)
 #define SEC_KEY_2		(1<<1)
···
 	size_t wpa_ie_len;
 	u8 *wpa_ie;
 
-	struct list_head crypt_deinit_list;
-	struct ieee80211_crypt_data *crypt[WEP_KEYS];
-	int tx_keyidx;		/* default TX key index (crypt[tx_keyidx]) */
-	struct timer_list crypt_deinit_timer;
-	int crypt_quiesced;
+	struct lib80211_crypt_info crypt_info;
 
 	int bcrx_sta_key;	/* use individual keys to override default keys even
 				 * with RX of broad/multicast frames */

include/net/ieee80211_crypt.h

···
-/*
- * Original code based on Host AP (software wireless LAN access point) driver
- * for Intersil Prism2/2.5/3.
- *
- * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
- * <[e-mail]>
- * Copyright (c) 2002-2003, Jouni Malinen <[e-mail]>
- *
- * Adaption to a generic IEEE 802.11 stack by James Ketrenos
- * <[e-mail]>
- *
- * Copyright (c) 2004, Intel Corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation. See README and COPYING for
- * more details.
- */
-
-/*
- * This file defines the interface to the ieee80211 crypto module.
- */
-#ifndef IEEE80211_CRYPT_H
-#define IEEE80211_CRYPT_H
-
-#include <linux/types.h>
-#include <linux/list.h>
-#include <net/ieee80211.h>
-#include <asm/atomic.h>
-
-enum {
-	IEEE80211_CRYPTO_TKIP_COUNTERMEASURES = (1 << 0),
-};
-
-struct sk_buff;
-struct module;
-
-struct ieee80211_crypto_ops {
-	const char *name;
-	struct list_head list;
-
-	/* init new crypto context (e.g., allocate private data space,
-	 * select IV, etc.); returns NULL on failure or pointer to allocated
-	 * private data on success */
-	void *(*init) (int keyidx);
-
-	/* deinitialize crypto context and free allocated private data */
-	void (*deinit) (void *priv);
-
-	int (*build_iv) (struct sk_buff * skb, int hdr_len,
-			 u8 *key, int keylen, void *priv);
-
-	/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
-	 * value from decrypt_mpdu is passed as the keyidx value for
-	 * decrypt_msdu. skb must have enough head and tail room for the
-	 * encryption; if not, error will be returned; these functions are
-	 * called for all MPDUs (i.e., fragments).
-	 */
-	int (*encrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
-	int (*decrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
-
-	/* These functions are called for full MSDUs, i.e. full frames.
-	 * These can be NULL if full MSDU operations are not needed. */
-	int (*encrypt_msdu) (struct sk_buff * skb, int hdr_len, void *priv);
-	int (*decrypt_msdu) (struct sk_buff * skb, int keyidx, int hdr_len,
-			     void *priv);
-
-	int (*set_key) (void *key, int len, u8 * seq, void *priv);
-	int (*get_key) (void *key, int len, u8 * seq, void *priv);
-
-	/* procfs handler for printing out key information and possible
-	 * statistics */
-	char *(*print_stats) (char *p, void *priv);
-
-	/* Crypto specific flag get/set for configuration settings */
-	unsigned long (*get_flags) (void *priv);
-	unsigned long (*set_flags) (unsigned long flags, void *priv);
-
-	/* maximum number of bytes added by encryption; encrypt buf is
-	 * allocated with extra_prefix_len bytes, copy of in_buf, and
-	 * extra_postfix_len; encrypt need not use all this space, but
-	 * the result must start at the beginning of the buffer and correct
-	 * length must be returned */
-	int extra_mpdu_prefix_len, extra_mpdu_postfix_len;
-	int extra_msdu_prefix_len, extra_msdu_postfix_len;
-
-	struct module *owner;
-};
-
-struct ieee80211_crypt_data {
-	struct list_head list;	/* delayed deletion list */
-	struct ieee80211_crypto_ops *ops;
-	void *priv;
-	atomic_t refcnt;
-};
-
-struct ieee80211_device;
-
-int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops);
-int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops);
-struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name);
-void ieee80211_crypt_deinit_entries(struct ieee80211_device *, int);
-void ieee80211_crypt_deinit_handler(unsigned long);
-void ieee80211_crypt_delayed_deinit(struct ieee80211_device *ieee,
-				    struct ieee80211_crypt_data **crypt);
-void ieee80211_crypt_quiescing(struct ieee80211_device *ieee);
-
-#endif

include/net/lib80211.h

···
  *
  * Copyright (c) 2008, John W. Linville <[e-mail]>
  *
+ * Some bits copied from old ieee80211 component, w/ original copyright
+ * notices below:
+ *
+ * Original code based on Host AP (software wireless LAN access point) driver
+ * for Intersil Prism2/2.5/3.
+ *
+ * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
+ * <[e-mail]>
+ * Copyright (c) 2002-2003, Jouni Malinen <[e-mail]>
+ *
+ * Adaption to a generic IEEE 802.11 stack by James Ketrenos
+ * <[e-mail]>
+ *
+ * Copyright (c) 2004, Intel Corporation
+ *
  */
 
 #ifndef LIB80211_H
 #define LIB80211_H
 
+#include <linux/types.h>
+#include <linux/list.h>
+#include <linux/module.h>
+#include <asm/atomic.h>
+#include <linux/if.h>
+#include <linux/skbuff.h>
 #include <linux/ieee80211.h>
 
 /* print_ssid() is intended to be used in debug (and possibly error)
  * messages. It should never be used for passing ssid to user space. */
 const char *print_ssid(char *buf, const char *ssid, u8 ssid_len);
 #define DECLARE_SSID_BUF(var) char var[IEEE80211_MAX_SSID_LEN * 4 + 1] __maybe_unused
+
+#define NUM_WEP_KEYS	4
+
+enum {
+	IEEE80211_CRYPTO_TKIP_COUNTERMEASURES = (1 << 0),
+};
+
+struct lib80211_crypto_ops {
+	const char *name;
+	struct list_head list;
+
+	/* init new crypto context (e.g., allocate private data space,
+	 * select IV, etc.); returns NULL on failure or pointer to allocated
+	 * private data on success */
+	void *(*init) (int keyidx);
+
+	/* deinitialize crypto context and free allocated private data */
+	void (*deinit) (void *priv);
+
+	int (*build_iv) (struct sk_buff * skb, int hdr_len,
+			 u8 *key, int keylen, void *priv);
+
+	/* encrypt/decrypt return < 0 on error or >= 0 on success. The return
+	 * value from decrypt_mpdu is passed as the keyidx value for
+	 * decrypt_msdu. skb must have enough head and tail room for the
+	 * encryption; if not, error will be returned; these functions are
+	 * called for all MPDUs (i.e., fragments).
+	 */
+	int (*encrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
+	int (*decrypt_mpdu) (struct sk_buff * skb, int hdr_len, void *priv);
+
+	/* These functions are called for full MSDUs, i.e. full frames.
+	 * These can be NULL if full MSDU operations are not needed. */
+	int (*encrypt_msdu) (struct sk_buff * skb, int hdr_len, void *priv);
+	int (*decrypt_msdu) (struct sk_buff * skb, int keyidx, int hdr_len,
+			     void *priv);
+
+	int (*set_key) (void *key, int len, u8 * seq, void *priv);
+	int (*get_key) (void *key, int len, u8 * seq, void *priv);
+
+	/* procfs handler for printing out key information and possible
+	 * statistics */
+	char *(*print_stats) (char *p, void *priv);
+
+	/* Crypto specific flag get/set for configuration settings */
+	unsigned long (*get_flags) (void *priv);
+	unsigned long (*set_flags) (unsigned long flags, void *priv);
+
+	/* maximum number of bytes added by encryption; encrypt buf is
+	 * allocated with extra_prefix_len bytes, copy of in_buf, and
+	 * extra_postfix_len; encrypt need not use all this space, but
+	 * the result must start at the beginning of the buffer and correct
+	 * length must be returned */
+	int extra_mpdu_prefix_len, extra_mpdu_postfix_len;
+	int extra_msdu_prefix_len, extra_msdu_postfix_len;
+
+	struct module *owner;
+};
+
+struct lib80211_crypt_data {
+	struct list_head list;	/* delayed deletion list */
+	struct lib80211_crypto_ops *ops;
+	void *priv;
+	atomic_t refcnt;
+};
+
+struct lib80211_crypt_info {
+	char *name;
+	/* Most clients will already have a lock,
+	   so just point to that. */
+	spinlock_t *lock;
+
+	struct lib80211_crypt_data *crypt[NUM_WEP_KEYS];
+	int tx_keyidx;		/* default TX key index (crypt[tx_keyidx]) */
+	struct list_head crypt_deinit_list;
+	struct timer_list crypt_deinit_timer;
+	int crypt_quiesced;
+};
+
+int lib80211_register_crypto_ops(struct lib80211_crypto_ops *ops);
+int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops);
+struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name);
+void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *, int);
+void lib80211_crypt_deinit_handler(unsigned long);
+void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info,
+				    struct lib80211_crypt_data **crypt);
+void lib80211_crypt_quiescing(struct lib80211_crypt_info *info);
 
 #endif /* LIB80211_H */

net/ieee80211/Kconfig

···
 	select CRYPTO_MICHAEL_MIC
 	select CRYPTO_ECB
 	select CRC32
-	select IEEE80211_CRYPT_WEP
-	select IEEE80211_CRYPT_TKIP
-	select IEEE80211_CRYPT_CCMP
 	select LIB80211
+	select LIB80211_CRYPT_WEP
+	select LIB80211_CRYPT_TKIP
+	select LIB80211_CRYPT_CCMP
 	---help---
 	This option enables the hardware independent IEEE 802.11
 	networking stack.  This component is deprecated in favor of the
···
 
 	  If you are not trying to debug or develop the ieee80211
 	  subsystem, you most likely want to say N here.
-
-config IEEE80211_CRYPT_WEP
-	tristate
-
-config IEEE80211_CRYPT_CCMP
-	tristate
-
-config IEEE80211_CRYPT_TKIP
-	tristate

net/ieee80211/Makefile

···
 obj-$(CONFIG_IEEE80211) += ieee80211.o
-obj-$(CONFIG_IEEE80211) += ieee80211_crypt.o
-obj-$(CONFIG_IEEE80211_CRYPT_WEP) += ieee80211_crypt_wep.o
-obj-$(CONFIG_IEEE80211_CRYPT_CCMP) += ieee80211_crypt_ccmp.o
-obj-$(CONFIG_IEEE80211_CRYPT_TKIP) += ieee80211_crypt_tkip.o
 ieee80211-objs := \
 	ieee80211_module.o \
 	ieee80211_tx.o \

net/ieee80211/ieee80211_crypt.c

···
-/*
- * Host AP crypto routines
- *
- * Copyright (c) 2002-2003, Jouni Malinen <[e-mail]>
- * Portions Copyright (C) 2004, Intel Corporation <[e-mail]>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation. See README and COPYING for
- * more details.
- *
- */
-
-#include <linux/errno.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/string.h>
-#include <net/ieee80211.h>
-
-MODULE_AUTHOR("Jouni Malinen");
-MODULE_DESCRIPTION("HostAP crypto");
-MODULE_LICENSE("GPL");
-
-struct ieee80211_crypto_alg {
-	struct list_head list;
-	struct ieee80211_crypto_ops *ops;
-};
-
-static LIST_HEAD(ieee80211_crypto_algs);
-static DEFINE_SPINLOCK(ieee80211_crypto_lock);
-
-void ieee80211_crypt_deinit_entries(struct ieee80211_device *ieee, int force)
-{
-	struct ieee80211_crypt_data *entry, *next;
-	unsigned long flags;
-
-	spin_lock_irqsave(&ieee->lock, flags);
-	list_for_each_entry_safe(entry, next, &ieee->crypt_deinit_list, list) {
-		if (atomic_read(&entry->refcnt) != 0 && !force)
-			continue;
-
-		list_del(&entry->list);
-
-		if (entry->ops) {
-			entry->ops->deinit(entry->priv);
-			module_put(entry->ops->owner);
-		}
-		kfree(entry);
-	}
-	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)
-{
-	struct ieee80211_device *ieee = (struct ieee80211_device *)data;
-	unsigned long flags;
-
-	ieee80211_crypt_deinit_entries(ieee, 0);
-
-	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,
-				    struct ieee80211_crypt_data **crypt)
-{
-	struct ieee80211_crypt_data *tmp;
-	unsigned long flags;
-
-	if (*crypt == NULL)
-		return;
-
-	tmp = *crypt;
-	*crypt = NULL;
-
-	/* must not run ops->deinit() while there may be pending encrypt or
-	 * decrypt operations. Use a list of delayed deinits to avoid needing
-	 * locking. */
-
-	spin_lock_irqsave(&ieee->lock, flags);
-	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);
-}
-
-int ieee80211_register_crypto_ops(struct ieee80211_crypto_ops *ops)
-{
-	unsigned long flags;
-	struct ieee80211_crypto_alg *alg;
-
-	alg = kzalloc(sizeof(*alg), GFP_KERNEL);
-	if (alg == NULL)
-		return -ENOMEM;
-
-	alg->ops = ops;
-
-	spin_lock_irqsave(&ieee80211_crypto_lock, flags);
-	list_add(&alg->list, &ieee80211_crypto_algs);
-	spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
-
-	printk(KERN_DEBUG "ieee80211_crypt: registered algorithm '%s'\n",
-	       ops->name);
-
-	return 0;
-}
-
-int ieee80211_unregister_crypto_ops(struct ieee80211_crypto_ops *ops)
-{
-	struct ieee80211_crypto_alg *alg;
-	unsigned long flags;
-
-	spin_lock_irqsave(&ieee80211_crypto_lock, flags);
-	list_for_each_entry(alg, &ieee80211_crypto_algs, list) {
-		if (alg->ops == ops)
-			goto found;
-	}
-	spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
-	return -EINVAL;
-
-      found:
-	printk(KERN_DEBUG "ieee80211_crypt: unregistered algorithm "
-	       "'%s'\n", ops->name);
-	list_del(&alg->list);
-	spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
-	kfree(alg);
-	return 0;
-}
-
-struct ieee80211_crypto_ops *ieee80211_get_crypto_ops(const char *name)
-{
-	struct ieee80211_crypto_alg *alg;
-	unsigned long flags;
-
-	spin_lock_irqsave(&ieee80211_crypto_lock, flags);
-	list_for_each_entry(alg, &ieee80211_crypto_algs, list) {
-		if (strcmp(alg->ops->name, name) == 0)
-			goto found;
-	}
-	spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
-	return NULL;
-
-      found:
-	spin_unlock_irqrestore(&ieee80211_crypto_lock, flags);
-	return alg->ops;
-}
-
-static void *ieee80211_crypt_null_init(int keyidx)
-{
-	return (void *)1;
-}
-
-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,
-	.owner = THIS_MODULE,
-};
-
-static int __init ieee80211_crypto_init(void)
-{
-	return ieee80211_register_crypto_ops(&ieee80211_crypt_null);
-}
-
-static void __exit ieee80211_crypto_deinit(void)
-{
-	ieee80211_unregister_crypto_ops(&ieee80211_crypt_null);
-	BUG_ON(!list_empty(&ieee80211_crypto_algs));
-}
-
-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);
-EXPORT_SYMBOL(ieee80211_get_crypto_ops);
-
-module_init(ieee80211_crypto_init);
-module_exit(ieee80211_crypto_deinit);

net/ieee80211/ieee80211_crypt_ccmp.c net/wireless/lib80211_crypt_ccmp.c

···
 /*
- * Host AP crypt: host-based CCMP encryption implementation for Host AP driver
+ * lib80211 crypt: host-based CCMP encryption implementation for lib80211
  *
  * Copyright (c) 2003-2004, Jouni Malinen <[e-mail]>
+ * Copyright (c) 2008, John W. Linville <[e-mail]>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 #include <asm/string.h>
 #include <linux/wireless.h>
 
-#include <net/ieee80211.h>
+#include <linux/ieee80211.h>
 
 #include <linux/crypto.h>
+
+#include <net/lib80211.h>
 
 MODULE_AUTHOR("Jouni Malinen");
 MODULE_DESCRIPTION("Host AP crypt: CCMP");
···
 #define CCMP_TK_LEN 16
 #define CCMP_PN_LEN 6
 
-struct ieee80211_ccmp_data {
+struct lib80211_ccmp_data {
 	u8 key[CCMP_TK_LEN];
 	int key_set;
 
···
 	u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN];
 };
 
-static inline void ieee80211_ccmp_aes_encrypt(struct crypto_cipher *tfm,
+static inline void lib80211_ccmp_aes_encrypt(struct crypto_cipher *tfm,
 					      const u8 pt[16], u8 ct[16])
 {
 	crypto_cipher_encrypt_one(tfm, ct, pt);
 }
 
-static void *ieee80211_ccmp_init(int key_idx)
+static void *lib80211_ccmp_init(int key_idx)
 {
-	struct ieee80211_ccmp_data *priv;
+	struct lib80211_ccmp_data *priv;
 
 	priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
 	if (priv == NULL)
···
 
 	priv->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tfm)) {
-		printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate "
+		printk(KERN_DEBUG "lib80211_crypt_ccmp: could not allocate "
 		       "crypto API aes\n");
 		priv->tfm = NULL;
 		goto fail;
···
 	return NULL;
 }
 
-static void ieee80211_ccmp_deinit(void *priv)
+static void lib80211_ccmp_deinit(void *priv)
 {
-	struct ieee80211_ccmp_data *_priv = priv;
+	struct lib80211_ccmp_data *_priv = priv;
 	if (_priv && _priv->tfm)
 		crypto_free_cipher(_priv->tfm);
 	kfree(priv);
···
 }
 
 static void ccmp_init_blocks(struct crypto_cipher *tfm,
-			     struct ieee80211_hdr_4addr *hdr,
+			     struct ieee80211_hdr *hdr,
 			     u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0)
 {
 	u8 *pos, qc = 0;
 	size_t aad_len;
-	u16 fc;
 	int a4_included, qc_included;
 	u8 aad[2 * AES_BLOCK_LEN];
 
-	fc = le16_to_cpu(hdr->frame_ctl);
-	a4_included = ((fc & (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) ==
-		       (IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS));
-	qc_included = ((WLAN_FC_GET_TYPE(fc) == IEEE80211_FTYPE_DATA) &&
-		       (WLAN_FC_GET_STYPE(fc) & IEEE80211_STYPE_QOS_DATA));
+	a4_included = ieee80211_has_a4(hdr->frame_control);
+	qc_included = ieee80211_is_data_qos(hdr->frame_control);
+
 	aad_len = 22;
 	if (a4_included)
 		aad_len += 6;
···
 	aad[2] = pos[0] & 0x8f;
 	aad[3] = pos[1] & 0xc7;
 	memcpy(aad + 4, hdr->addr1, 3 * ETH_ALEN);
-	pos = (u8 *) & hdr->seq_ctl;
+	pos = (u8 *) & hdr->seq_ctrl;
 	aad[22] = pos[0] & 0x0f;
 	aad[23] = 0;		/* all bits masked */
 	memset(aad + 24, 0, 8);
···
 	}
 
 	/* Start with the first block and AAD */
-	ieee80211_ccmp_aes_encrypt(tfm, b0, auth);
+	lib80211_ccmp_aes_encrypt(tfm, b0, auth);
 	xor_block(auth, aad, AES_BLOCK_LEN);
-	ieee80211_ccmp_aes_encrypt(tfm, auth, auth);
+	lib80211_ccmp_aes_encrypt(tfm, auth, auth);
 	xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN);
-	ieee80211_ccmp_aes_encrypt(tfm, auth, auth);
+	lib80211_ccmp_aes_encrypt(tfm, auth, auth);
 	b0[0] &= 0x07;
 	b0[14] = b0[15] = 0;
-	ieee80211_ccmp_aes_encrypt(tfm, b0, s0);
+	lib80211_ccmp_aes_encrypt(tfm, b0, s0);
 }
 
-static int ieee80211_ccmp_hdr(struct sk_buff *skb, int hdr_len,
+static int lib80211_ccmp_hdr(struct sk_buff *skb, int hdr_len,
 			      u8 *aeskey, int keylen, void *priv)
 {
-	struct ieee80211_ccmp_data *key = priv;
+	struct lib80211_ccmp_data *key = priv;
 	int i;
 	u8 *pos;
 
···
 	return CCMP_HDR_LEN;
 }
 
-static int ieee80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static int lib80211_ccmp_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
-	struct ieee80211_ccmp_data *key = priv;
+	struct lib80211_ccmp_data *key = priv;
 	int data_len, i, blocks, last, len;
 	u8 *pos, *mic;
-	struct ieee80211_hdr_4addr *hdr;
+	struct ieee80211_hdr *hdr;
 	u8 *b0 = key->tx_b0;
 	u8 *b = key->tx_b;
 	u8 *e = key->tx_e;
···
 		return -1;
 
 	data_len = skb->len - hdr_len;
-	len = ieee80211_ccmp_hdr(skb, hdr_len, NULL, 0, priv);
+	len = lib80211_ccmp_hdr(skb, hdr_len, NULL, 0, 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;
+	hdr = (struct ieee80211_hdr *)skb->data;
 	ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0);
 
 	blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
···
 		len = (i == blocks && last) ? last : AES_BLOCK_LEN;
 		/* Authentication */
 		xor_block(b, pos, len);
-		ieee80211_ccmp_aes_encrypt(key->tfm, b, b);
+		lib80211_ccmp_aes_encrypt(key->tfm, b, b);
 		/* Encryption, with counter */
 		b0[14] = (i >> 8) & 0xff;
 		b0[15] = i & 0xff;
-		ieee80211_ccmp_aes_encrypt(key->tfm, b0, e);
+		lib80211_ccmp_aes_encrypt(key->tfm, b0, e);
 		xor_block(pos, e, len);
 		pos += len;
 	}
···
 	return 0;
 }
 
-static int ieee80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static int lib80211_ccmp_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
-	struct ieee80211_ccmp_data *key = priv;
+	struct lib80211_ccmp_data *key = priv;
 	u8 keyidx, *pos;
-	struct ieee80211_hdr_4addr *hdr;
+	struct ieee80211_hdr *hdr;
 	u8 *b0 = key->rx_b0;
 	u8 *b = key->rx_b;
 	u8 *a = key->rx_a;
···
 		return -1;
 	}
 
-	hdr = (struct ieee80211_hdr_4addr *)skb->data;
+	hdr = (struct ieee80211_hdr *)skb->data;
 	pos = skb->data + hdr_len;
 	keyidx = pos[3];
 	if (!(keyidx & (1 << 5))) {
···
 	pos += 8;
 
 	if (ccmp_replay_check(pn, key->rx_pn)) {
-		if (ieee80211_ratelimit_debug(IEEE80211_DL_DROP)) {
-			IEEE80211_DEBUG_DROP("CCMP: replay detected: STA=%pM "
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "CCMP: replay detected: STA=%pM "
 				 "previous PN %02x%02x%02x%02x%02x%02x "
 				 "received PN %02x%02x%02x%02x%02x%02x\n",
 				 hdr->addr2,
···
 		/* Decrypt, with counter */
 		b0[14] = (i >> 8) & 0xff;
 		b0[15] = i & 0xff;
-		ieee80211_ccmp_aes_encrypt(key->tfm, b0, b);
+		lib80211_ccmp_aes_encrypt(key->tfm, b0, b);
 		xor_block(pos, b, len);
 		/* Authentication */
 		xor_block(a, pos, len);
-		ieee80211_ccmp_aes_encrypt(key->tfm, a, a);
+		lib80211_ccmp_aes_encrypt(key->tfm, a, a);
 		pos += len;
 	}
 
···
 	return keyidx;
 }
 
-static int ieee80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv)
+static int lib80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv)
 {
-	struct ieee80211_ccmp_data *data = priv;
+	struct lib80211_ccmp_data *data = priv;
 	int keyidx;
 	struct crypto_cipher *tfm = data->tfm;
 
···
 	return 0;
 }
 
-static int ieee80211_ccmp_get_key(void *key, int len, u8 * seq, void *priv)
+static int lib80211_ccmp_get_key(void *key, int len, u8 * seq, void *priv)
 {
-	struct ieee80211_ccmp_data *data = priv;
+	struct lib80211_ccmp_data *data = priv;
 
 	if (len < CCMP_TK_LEN)
 		return -1;
···
 	return CCMP_TK_LEN;
 }
 
-static char *ieee80211_ccmp_print_stats(char *p, void *priv)
+static char *lib80211_ccmp_print_stats(char *p, void *priv)
 {
-	struct ieee80211_ccmp_data *ccmp = priv;
+	struct lib80211_ccmp_data *ccmp = priv;
 
 	p += sprintf(p, "key[%d] alg=CCMP key_set=%d "
 		     "tx_pn=%02x%02x%02x%02x%02x%02x "
···
 	return p;
 }
 
-static struct ieee80211_crypto_ops ieee80211_crypt_ccmp = {
+static struct lib80211_crypto_ops lib80211_crypt_ccmp = {
 	.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,
+	.init = lib80211_ccmp_init,
+	.deinit = lib80211_ccmp_deinit,
+	.build_iv = lib80211_ccmp_hdr,
+	.encrypt_mpdu = lib80211_ccmp_encrypt,
+	.decrypt_mpdu = lib80211_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,
+	.set_key = lib80211_ccmp_set_key,
+	.get_key = lib80211_ccmp_get_key,
+	.print_stats = lib80211_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)
+static int __init lib80211_crypto_ccmp_init(void)
 {
-	return ieee80211_register_crypto_ops(&ieee80211_crypt_ccmp);
+	return lib80211_register_crypto_ops(&lib80211_crypt_ccmp);
 }
 
-static void __exit ieee80211_crypto_ccmp_exit(void)
+static void __exit lib80211_crypto_ccmp_exit(void)
 {
-	ieee80211_unregister_crypto_ops(&ieee80211_crypt_ccmp);
+	lib80211_unregister_crypto_ops(&lib80211_crypt_ccmp);
 }
 
-module_init(ieee80211_crypto_ccmp_init);
-module_exit(ieee80211_crypto_ccmp_exit);
+module_init(lib80211_crypto_ccmp_init);
+module_exit(lib80211_crypto_ccmp_exit);

net/ieee80211/ieee80211_crypt_tkip.c net/wireless/lib80211_crypt_tkip.c

···
 /*
- * Host AP crypt: host-based TKIP encryption implementation for Host AP driver
+ * lib80211 crypt: host-based TKIP encryption implementation for lib80211
  *
  * Copyright (c) 2003-2004, Jouni Malinen <[e-mail]>
+ * Copyright (c) 2008, John W. Linville <[e-mail]>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 #include <linux/if_arp.h>
 #include <asm/string.h>
 
-#include <net/ieee80211.h>
+#include <linux/wireless.h>
+#include <linux/ieee80211.h>
+#include <net/iw_handler.h>
 
 #include <linux/crypto.h>
 #include <linux/crc32.h>
 
+#include <net/lib80211.h>
+
 MODULE_AUTHOR("Jouni Malinen");
-MODULE_DESCRIPTION("Host AP crypt: TKIP");
+MODULE_DESCRIPTION("lib80211 crypt: TKIP");
 MODULE_LICENSE("GPL");
 
-struct ieee80211_tkip_data {
+struct lib80211_tkip_data {
 #define TKIP_KEY_LEN 32
 	u8 key[TKIP_KEY_LEN];
 	int key_set;
···
 	unsigned long flags;
 };
 
-static unsigned long ieee80211_tkip_set_flags(unsigned long flags, void *priv)
+static unsigned long lib80211_tkip_set_flags(unsigned long flags, void *priv)
 {
-	struct ieee80211_tkip_data *_priv = priv;
+	struct lib80211_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)
+static unsigned long lib80211_tkip_get_flags(void *priv)
 {
-	struct ieee80211_tkip_data *_priv = priv;
+	struct lib80211_tkip_data *_priv = priv;
 	return _priv->flags;
 }
 
-static void *ieee80211_tkip_init(int key_idx)
+static void *lib80211_tkip_init(int key_idx)
 {
-	struct ieee80211_tkip_data *priv;
+	struct lib80211_tkip_data *priv;
 
 	priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
 	if (priv == NULL)
···
 	priv->tx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 						CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_arc4)) {
-		printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
+		printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
 		       "crypto API arc4\n");
 		priv->tx_tfm_arc4 = NULL;
 		goto fail;
···
 	priv->tx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
 						 CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm_michael)) {
-		printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
+		printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
 		       "crypto API michael_mic\n");
 		priv->tx_tfm_michael = NULL;
 		goto fail;
···
 	priv->rx_tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
 						CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm_arc4)) {
-		printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
+		printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
 		       "crypto API arc4\n");
 		priv->rx_tfm_arc4 = NULL;
 		goto fail;
···
 	priv->rx_tfm_michael = crypto_alloc_hash("michael_mic", 0,
 						 CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm_michael)) {
-		printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
+		printk(KERN_DEBUG "lib80211_crypt_tkip: could not allocate "
 		       "crypto API michael_mic\n");
 		priv->rx_tfm_michael = NULL;
 		goto fail;
···
 	return NULL;
 }
 
-static void ieee80211_tkip_deinit(void *priv)
+static void lib80211_tkip_deinit(void *priv)
 {
-	struct ieee80211_tkip_data *_priv = priv;
+	struct lib80211_tkip_data *_priv = priv;
 	if (_priv) {
 		if (_priv->tx_tfm_michael)
 			crypto_free_hash(_priv->tx_tfm_michael);
···
 #endif
 }
 
-static int ieee80211_tkip_hdr(struct sk_buff *skb, int hdr_len,
+static int lib80211_tkip_hdr(struct sk_buff *skb, int hdr_len,
 			      u8 * rc4key, int keylen, void *priv)
 {
-	struct ieee80211_tkip_data *tkey = priv;
+	struct lib80211_tkip_data *tkey = priv;
 	int len;
 	u8 *pos;
-	struct ieee80211_hdr_4addr *hdr;
+	struct ieee80211_hdr *hdr;
 
-	hdr = (struct ieee80211_hdr_4addr *)skb->data;
+	hdr = (struct ieee80211_hdr *)skb->data;
 
 	if (skb_headroom(skb) < 8 || skb->len < hdr_len)
 		return -1;
···
 	return 8;
 }
 
-static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static int lib80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
-	struct ieee80211_tkip_data *tkey = priv;
+	struct lib80211_tkip_data *tkey = priv;
 	struct blkcipher_desc desc = { .tfm = tkey->tx_tfm_arc4 };
 	int len;
 	u8 rc4key[16], *pos, *icv;
···
 
 	if (tkey->flags & IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) {
 		if (net_ratelimit()) {
-			struct ieee80211_hdr_4addr *hdr =
-			    (struct ieee80211_hdr_4addr *)skb->data;
+			struct ieee80211_hdr *hdr =
+			    (struct ieee80211_hdr *)skb->data;
 			printk(KERN_DEBUG ": TKIP countermeasures: dropped "
 			       "TX packet to %pM\n", hdr->addr1);
 		}
···
 	len = skb->len - hdr_len;
 	pos = skb->data + hdr_len;
 
-	if ((ieee80211_tkip_hdr(skb, hdr_len, rc4key, 16, priv)) < 0)
+	if ((lib80211_tkip_hdr(skb, hdr_len, rc4key, 16, priv)) < 0)
 		return -1;
 
 	icv = skb_put(skb, 4);
···
 	return 0;
 }
 
-static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
-	struct ieee80211_tkip_data *tkey = priv;
+	struct lib80211_tkip_data *tkey = priv;
 	struct blkcipher_desc desc = { .tfm = tkey->rx_tfm_arc4 };
 	u8 rc4key[16];
 	u8 keyidx, *pos;
 	u32 iv32;
 	u16 iv16;
-	struct ieee80211_hdr_4addr *hdr;
+	struct ieee80211_hdr *hdr;
 	u8 icv[4];
 	u32 crc;
 	struct scatterlist sg;
 	int plen;
 
-	hdr = (struct ieee80211_hdr_4addr *)skb->data;
+	hdr = (struct ieee80211_hdr *)skb->data;
 
 	if (tkey->flags & IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) {
 		if (net_ratelimit()) {
···
 	pos += 8;
 
 	if (tkip_replay_check(iv32, iv16, tkey->rx_iv32, tkey->rx_iv16)) {
-		if (ieee80211_ratelimit_debug(IEEE80211_DL_DROP)) {
-			IEEE80211_DEBUG_DROP("TKIP: replay detected: STA=%pM"
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "TKIP: replay detected: STA=%pM"
 			       " previous TSC %08x%04x received TSC "
 			       "%08x%04x\n", hdr->addr2,
 			       tkey->rx_iv32, tkey->rx_iv16, iv32, iv16);
···
 			 * it needs to be recalculated for the next packet. */
 			tkey->rx_phase1_done = 0;
 		}
-		if (ieee80211_ratelimit_debug(IEEE80211_DL_DROP)) {
-			IEEE80211_DEBUG_DROP("TKIP: ICV error detected: STA="
+		if (net_ratelimit()) {
+			printk(KERN_DEBUG "TKIP: ICV error detected: STA="
 			       "%pM\n", hdr->addr2);
 		}
 		tkey->dot11RSNAStatsTKIPICVErrors++;
···
 
 static void michael_mic_hdr(struct sk_buff *skb, u8 * hdr)
 {
-	struct ieee80211_hdr_4addr *hdr11;
-	u16 stype;
+	struct ieee80211_hdr *hdr11;
 
-	hdr11 = (struct ieee80211_hdr_4addr *)skb->data;
-	stype  = WLAN_FC_GET_STYPE(le16_to_cpu(hdr11->frame_ctl));
+	hdr11 = (struct ieee80211_hdr *)skb->data;
 
-	switch (le16_to_cpu(hdr11->frame_ctl) &
+	switch (le16_to_cpu(hdr11->frame_control) &
 		(IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS)) {
 	case IEEE80211_FCTL_TODS:
 		memcpy(hdr, hdr11->addr3, ETH_ALEN);	/* DA */
···
 		break;
 	}
 
-	if (stype & IEEE80211_STYPE_QOS_DATA) {
-		const struct ieee80211_hdr_3addrqos *qoshdr =
-			(struct ieee80211_hdr_3addrqos *)skb->data;
-		hdr[12] = le16_to_cpu(qoshdr->qos_ctl) & IEEE80211_QCTL_TID;
+	if (ieee80211_is_data_qos(hdr11->frame_control)) {
+		hdr[12] = le16_to_cpu(*ieee80211_get_qos_ctl(hdr11))
+			& IEEE80211_QOS_CTL_TID_MASK;
 	} else
 		hdr[12] = 0;		/* priority */
 
 	hdr[13] = hdr[14] = hdr[15] = 0;	/* reserved */
 }
 
-static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len,
+static int lib80211_michael_mic_add(struct sk_buff *skb, int hdr_len,
 				     void *priv)
 {
-	struct ieee80211_tkip_data *tkey = priv;
+	struct lib80211_tkip_data *tkey = priv;
 	u8 *pos;
 
 	if (skb_tailroom(skb) < 8 || skb->len < hdr_len) {
···
 	return 0;
 }
 
-static void ieee80211_michael_mic_failure(struct net_device *dev,
-					  struct ieee80211_hdr_4addr *hdr,
+static void lib80211_michael_mic_failure(struct net_device *dev,
+					  struct ieee80211_hdr *hdr,
 					  int keyidx)
 {
 	union iwreq_data wrqu;
···
 	wireless_send_event(dev, IWEVMICHAELMICFAILURE, &wrqu, (char *)&ev);
 }
 
-static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
+static int lib80211_michael_mic_verify(struct sk_buff *skb, int keyidx,
 					int hdr_len, void *priv)
 {
-	struct ieee80211_tkip_data *tkey = priv;
+	struct lib80211_tkip_data *tkey = priv;
 	u8 mic[8];
 
 	if (!tkey->key_set)
···
 			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_4addr *hdr;
-		hdr = (struct ieee80211_hdr_4addr *)skb->data;
+		struct ieee80211_hdr *hdr;
+		hdr = (struct ieee80211_hdr *)skb->data;
 		printk(KERN_DEBUG "%s: Michael MIC verification failed for "
 		       "MSDU from %pM keyidx=%d\n",
 		       skb->dev ? skb->dev->name : "N/A", hdr->addr2,
 		       keyidx);
 		if (skb->dev)
-			ieee80211_michael_mic_failure(skb->dev, hdr, keyidx);
+			lib80211_michael_mic_failure(skb->dev, hdr, keyidx);
 		tkey->dot11RSNAStatsTKIPLocalMICFailures++;
 		return -1;
 	}
···
 	return 0;
 }
 
-static int ieee80211_tkip_set_key(void *key, int len, u8 * seq, void *priv)
+static int lib80211_tkip_set_key(void *key, int len, u8 * seq, void *priv)
 {
-	struct ieee80211_tkip_data *tkey = priv;
+	struct lib80211_tkip_data *tkey = priv;
 	int keyidx;
 	struct crypto_hash *tfm = tkey->tx_tfm_michael;
 	struct crypto_blkcipher *tfm2 = tkey->tx_tfm_arc4;
···
 	return 0;
 }
 
-static int ieee80211_tkip_get_key(void *key, int len, u8 * seq, void *priv)
+static int lib80211_tkip_get_key(void *key, int len, u8 * seq, void *priv)
 {
-	struct ieee80211_tkip_data *tkey = priv;
+	struct lib80211_tkip_data *tkey = priv;
 
 	if (len < TKIP_KEY_LEN)
 		return -1;
···
 	return TKIP_KEY_LEN;
 }
 
-static char *ieee80211_tkip_print_stats(char *p, void *priv)
+static char *lib80211_tkip_print_stats(char *p, void *priv)
 {
-	struct ieee80211_tkip_data *tkip = priv;
+	struct lib80211_tkip_data *tkip = priv;
 	p += sprintf(p, "key[%d] alg=TKIP key_set=%d "
 		     "tx_pn=%02x%02x%02x%02x%02x%02x "
 		     "rx_pn=%02x%02x%02x%02x%02x%02x "
···
 	return p;
 }
 
-static struct ieee80211_crypto_ops ieee80211_crypt_tkip = {
+static struct lib80211_crypto_ops lib80211_crypt_tkip = {
 	.name = "TKIP",
-	.init = ieee80211_tkip_init,
-	.deinit = ieee80211_tkip_deinit,
-	.build_iv = ieee80211_tkip_hdr,
-	.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,
+	.init = lib80211_tkip_init,
+	.deinit = lib80211_tkip_deinit,
+	.build_iv = lib80211_tkip_hdr,
+	.encrypt_mpdu = lib80211_tkip_encrypt,
+	.decrypt_mpdu = lib80211_tkip_decrypt,
+	.encrypt_msdu = lib80211_michael_mic_add,
+	.decrypt_msdu = lib80211_michael_mic_verify,
+	.set_key = lib80211_tkip_set_key,
+	.get_key = lib80211_tkip_get_key,
+	.print_stats = lib80211_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,
+	.get_flags = lib80211_tkip_get_flags,
+	.set_flags = lib80211_tkip_set_flags,
 	.owner = THIS_MODULE,
 };
 
-static int __init ieee80211_crypto_tkip_init(void)
+static int __init lib80211_crypto_tkip_init(void)
 {
-	return ieee80211_register_crypto_ops(&ieee80211_crypt_tkip);
+	return lib80211_register_crypto_ops(&lib80211_crypt_tkip);
 }
 
-static void __exit ieee80211_crypto_tkip_exit(void)
+static void __exit lib80211_crypto_tkip_exit(void)
 {
-	ieee80211_unregister_crypto_ops(&ieee80211_crypt_tkip);
+	lib80211_unregister_crypto_ops(&lib80211_crypt_tkip);
 }
 
-module_init(ieee80211_crypto_tkip_init);
-module_exit(ieee80211_crypto_tkip_exit);
+module_init(lib80211_crypto_tkip_init);
+module_exit(lib80211_crypto_tkip_exit);

net/ieee80211/ieee80211_crypt_wep.c net/wireless/lib80211_crypt_wep.c

···
 /*
- * Host AP crypt: host-based WEP encryption implementation for Host AP driver
+ * lib80211 crypt: host-based WEP encryption implementation for lib80211
  *
  * Copyright (c) 2002-2004, Jouni Malinen <[e-mail]>
+ * Copyright (c) 2008, John W. Linville <[e-mail]>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
···
 #include <linux/mm.h>
 #include <asm/string.h>
 
-#include <net/ieee80211.h>
+#include <net/lib80211.h>
 
 #include <linux/crypto.h>
 #include <linux/crc32.h>
 
 MODULE_AUTHOR("Jouni Malinen");
-MODULE_DESCRIPTION("Host AP crypt: WEP");
+MODULE_DESCRIPTION("lib80211 crypt: WEP");
 MODULE_LICENSE("GPL");
 
-struct prism2_wep_data {
+struct lib80211_wep_data {
 	u32 iv;
 #define WEP_KEY_LEN 13
 	u8 key[WEP_KEY_LEN + 1];
···
 	struct crypto_blkcipher *rx_tfm;
 };
 
-static void *prism2_wep_init(int keyidx)
+static void *lib80211_wep_init(int keyidx)
 {
-	struct prism2_wep_data *priv;
+	struct lib80211_wep_data *priv;
 
 	priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
 	if (priv == NULL)
···
 
 	priv->tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->tx_tfm)) {
-		printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate "
+		printk(KERN_DEBUG "lib80211_crypt_wep: could not allocate "
 		       "crypto API arc4\n");
 		priv->tx_tfm = NULL;
 		goto fail;
···
 
 	priv->rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(priv->rx_tfm)) {
-		printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate "
+		printk(KERN_DEBUG "lib80211_crypt_wep: could not allocate "
 		       "crypto API arc4\n");
 		priv->rx_tfm = NULL;
 		goto fail;
···
 	return NULL;
 }
 
-static void prism2_wep_deinit(void *priv)
+static void lib80211_wep_deinit(void *priv)
 {
-	struct prism2_wep_data *_priv = priv;
+	struct lib80211_wep_data *_priv = priv;
 	if (_priv) {
 		if (_priv->tx_tfm)
 			crypto_free_blkcipher(_priv->tx_tfm);
···
 }
 
 /* Add WEP IV/key info to a frame that has at least 4 bytes of headroom */
-static int prism2_wep_build_iv(struct sk_buff *skb, int hdr_len,
+static int lib80211_wep_build_iv(struct sk_buff *skb, int hdr_len,
 			       u8 *key, int keylen, void *priv)
 {
-	struct prism2_wep_data *wep = priv;
+	struct lib80211_wep_data *wep = priv;
 	u32 klen, len;
 	u8 *pos;
 
···
  *
  * WEP frame payload: IV + TX key idx, RC4(data), ICV = RC4(CRC32(data))
  */
-static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static int lib80211_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
-	struct prism2_wep_data *wep = priv;
+	struct lib80211_wep_data *wep = priv;
 	struct blkcipher_desc desc = { .tfm = wep->tx_tfm };
 	u32 crc, klen, len;
 	u8 *pos, *icv;
 	struct scatterlist sg;
 	u8 key[WEP_KEY_LEN + 3];
 
-	/* other checks are in prism2_wep_build_iv */
+	/* other checks are in lib80211_wep_build_iv */
 	if (skb_tailroom(skb) < 4)
 		return -1;
 
 	/* add the IV to the frame */
-	if (prism2_wep_build_iv(skb, hdr_len, NULL, 0, priv))
+	if (lib80211_wep_build_iv(skb, hdr_len, NULL, 0, priv))
 		return -1;
 
 	/* Copy the IV into the first 3 bytes of the key */
···
  * Returns 0 if frame was decrypted successfully and ICV was correct and -1 on
  * failure. If frame is OK, IV and ICV will be removed.
  */
-static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
+static int lib80211_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
 {
-	struct prism2_wep_data *wep = priv;
+	struct lib80211_wep_data *wep = priv;
 	struct blkcipher_desc desc = { .tfm = wep->rx_tfm };
 	u32 crc, klen, plen;
 	u8 key[WEP_KEY_LEN + 3];
···
 	return 0;
 }
 
-static int prism2_wep_set_key(void *key, int len, u8 * seq, void *priv)
+static int lib80211_wep_set_key(void *key, int len, u8 * seq, void *priv)
 {
-	struct prism2_wep_data *wep = priv;
+	struct lib80211_wep_data *wep = priv;
 
 	if (len < 0 || len > WEP_KEY_LEN)
 		return -1;
···
 	return 0;
 }
 
-static int prism2_wep_get_key(void *key, int len, u8 * seq, void *priv)
+static int lib80211_wep_get_key(void *key, int len, u8 * seq, void *priv)
 {
-	struct prism2_wep_data *wep = priv;
+	struct lib80211_wep_data *wep = priv;
 
 	if (len < wep->key_len)
 		return -1;
···
 	return wep->key_len;
 }
 
-static char *prism2_wep_print_stats(char *p, void *priv)
+static char *lib80211_wep_print_stats(char *p, void *priv)
 {
-	struct prism2_wep_data *wep = priv;
+	struct lib80211_wep_data *wep = priv;
 	p += sprintf(p, "key[%d] alg=WEP len=%d\n", wep->key_idx, wep->key_len);
 	return p;
 }
 
-static struct ieee80211_crypto_ops ieee80211_crypt_wep = {
+static struct lib80211_crypto_ops lib80211_crypt_wep = {
 	.name = "WEP",
-	.init = prism2_wep_init,
-	.deinit = prism2_wep_deinit,
-	.build_iv = prism2_wep_build_iv,
-	.encrypt_mpdu = prism2_wep_encrypt,
-	.decrypt_mpdu = prism2_wep_decrypt,
+	.init = lib80211_wep_init,
+	.deinit = lib80211_wep_deinit,
+	.build_iv = lib80211_wep_build_iv,
+	.encrypt_mpdu = lib80211_wep_encrypt,
+	.decrypt_mpdu = lib80211_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,
+	.set_key = lib80211_wep_set_key,
+	.get_key = lib80211_wep_get_key,
+	.print_stats = lib80211_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)
+static int __init lib80211_crypto_wep_init(void)
 {
-	return ieee80211_register_crypto_ops(&ieee80211_crypt_wep);
+	return lib80211_register_crypto_ops(&lib80211_crypt_wep);
 }
 
-static void __exit ieee80211_crypto_wep_exit(void)
+static void __exit lib80211_crypto_wep_exit(void)
 {
-	ieee80211_unregister_crypto_ops(&ieee80211_crypt_wep);
+	lib80211_unregister_crypto_ops(&lib80211_crypt_wep);
 }
 
-module_init(ieee80211_crypto_wep_init);
-module_exit(ieee80211_crypto_wep_exit);
+module_init(lib80211_crypto_wep_init);
+module_exit(lib80211_crypto_wep_exit);

net/ieee80211/ieee80211_module.c

···
 	ieee->host_open_frag = 1;
 	ieee->ieee802_1x = 1;	/* Default to supporting 802.1x */
 
-	INIT_LIST_HEAD(&ieee->crypt_deinit_list);
-	setup_timer(&ieee->crypt_deinit_timer, ieee80211_crypt_deinit_handler,
-			(unsigned long)ieee);
-	ieee->crypt_quiesced = 0;
-
 	spin_lock_init(&ieee->lock);
+
+	ieee->crypt_info.name = dev->name;
+	ieee->crypt_info.lock = &ieee->lock;
+	INIT_LIST_HEAD(&ieee->crypt_info.crypt_deinit_list);
+	setup_timer(&ieee->crypt_info.crypt_deinit_timer,
+			lib80211_crypt_deinit_handler,
+			(unsigned long)&ieee->crypt_info);
+	ieee->crypt_info.crypt_quiesced = 0;
 
 	ieee->wpa_enabled = 0;
 	ieee->drop_unencrypted = 0;
···
 
 	int i;
 
-	ieee80211_crypt_quiescing(ieee);
-	del_timer_sync(&ieee->crypt_deinit_timer);
-	ieee80211_crypt_deinit_entries(ieee, 1);
+	lib80211_crypt_quiescing(&ieee->crypt_info);
+	del_timer_sync(&ieee->crypt_info.crypt_deinit_timer);
+	lib80211_crypt_deinit_entries(&ieee->crypt_info, 1);
 
 	for (i = 0; i < WEP_KEYS; i++) {
-		struct ieee80211_crypt_data *crypt = ieee->crypt[i];
+		struct lib80211_crypt_data *crypt = ieee->crypt_info.crypt[i];
 		if (crypt) {
 			if (crypt->ops) {
 				crypt->ops->deinit(crypt->priv);
 				module_put(crypt->ops->owner);
 			}
 			kfree(crypt);
-			ieee->crypt[i] = NULL;
+			ieee->crypt_info.crypt[i] = NULL;
 		}
 	}
 

net/ieee80211/ieee80211_rx.c

···
 /* Called only as a tasklet (software IRQ), by ieee80211_rx */
 static int
 ieee80211_rx_frame_decrypt(struct ieee80211_device *ieee, struct sk_buff *skb,
-			   struct ieee80211_crypt_data *crypt)
+			   struct lib80211_crypt_data *crypt)
 {
 	struct ieee80211_hdr_3addr *hdr;
 	int res, hdrlen;
···
 static int
 ieee80211_rx_frame_decrypt_msdu(struct ieee80211_device *ieee,
 				struct sk_buff *skb, int keyidx,
-				struct ieee80211_crypt_data *crypt)
+				struct lib80211_crypt_data *crypt)
 {
 	struct ieee80211_hdr_3addr *hdr;
 	int res, hdrlen;
···
 #endif
 	u8 dst[ETH_ALEN];
 	u8 src[ETH_ALEN];
-	struct ieee80211_crypt_data *crypt = NULL;
+	struct lib80211_crypt_data *crypt = NULL;
 	int keyidx = 0;
 	int can_be_decrypted = 0;
 
···
 		 * is only allowed 2-bits of storage, no value of keyidx can
 		 * be provided via above code that would result in keyidx
 		 * being out of range */
-		crypt = ieee->crypt[keyidx];
+		crypt = ieee->crypt_info.crypt[keyidx];
 
 #ifdef NOT_YET
 		sta = NULL;

net/ieee80211/ieee80211_tx.c

···
 static int ieee80211_encrypt_fragment(struct ieee80211_device *ieee,
 					     struct sk_buff *frag, int hdr_len)
 {
-	struct ieee80211_crypt_data *crypt = ieee->crypt[ieee->tx_keyidx];
+	struct lib80211_crypt_data *crypt =
+		ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 	int res;
 
 	if (crypt == NULL)
···
 		.qos_ctl = 0
 	};
 	u8 dest[ETH_ALEN], src[ETH_ALEN];
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	int priority = skb->priority;
 	int snapped = 0;
 
···
 
 	ether_type = ((struct ethhdr *)skb->data)->h_proto;
 
-	crypt = ieee->crypt[ieee->tx_keyidx];
+	crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 
 	encrypt = !(ether_type == htons(ETH_P_PAE) && ieee->ieee802_1x) &&
 	    ieee->sec.encrypt;

net/ieee80211/ieee80211_wx.c

···
 		.flags = 0
 	};
 	int i, key, key_provided, len;
-	struct ieee80211_crypt_data **crypt;
+	struct lib80211_crypt_data **crypt;
 	int host_crypto = ieee->host_encrypt || ieee->host_decrypt || ieee->host_build_iv;
 	DECLARE_SSID_BUF(ssid);
 
···
 		key_provided = 1;
 	} else {
 		key_provided = 0;
-		key = ieee->tx_keyidx;
+		key = ieee->crypt_info.tx_keyidx;
 	}
 
 	IEEE80211_DEBUG_WX("Key: %d [%s]\n", key, key_provided ?
 			   "provided" : "default");
 
-	crypt = &ieee->crypt[key];
+	crypt = &ieee->crypt_info.crypt[key];
 
 	if (erq->flags & IW_ENCODE_DISABLED) {
 		if (key_provided && *crypt) {
 			IEEE80211_DEBUG_WX("Disabling encryption on key %d.\n",
 					   key);
-			ieee80211_crypt_delayed_deinit(ieee, crypt);
+			lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 		} else
 			IEEE80211_DEBUG_WX("Disabling encryption.\n");
 
 		/* Check all the keys to see if any are still configured,
 		 * and if no key index was provided, de-init them all */
 		for (i = 0; i < WEP_KEYS; i++) {
-			if (ieee->crypt[i] != NULL) {
+			if (ieee->crypt_info.crypt[i] != NULL) {
 				if (key_provided)
 					break;
-				ieee80211_crypt_delayed_deinit(ieee,
-							       &ieee->crypt[i]);
+				lib80211_crypt_delayed_deinit(&ieee->crypt_info,
+							       &ieee->crypt_info.crypt[i]);
 			}
 		}
 
···
 	    strcmp((*crypt)->ops->name, "WEP") != 0) {
 		/* changing to use WEP; deinit previously used algorithm
 		 * on this key */
-		ieee80211_crypt_delayed_deinit(ieee, crypt);
+		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 	}
 
 	if (*crypt == NULL && host_crypto) {
-		struct ieee80211_crypt_data *new_crypt;
+		struct lib80211_crypt_data *new_crypt;
 
 		/* take WEP into use */
-		new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
+		new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
 				    GFP_KERNEL);
 		if (new_crypt == NULL)
 			return -ENOMEM;
-		new_crypt->ops = ieee80211_get_crypto_ops("WEP");
+		new_crypt->ops = lib80211_get_crypto_ops("WEP");
 		if (!new_crypt->ops) {
-			request_module("ieee80211_crypt_wep");
-			new_crypt->ops = ieee80211_get_crypto_ops("WEP");
+			request_module("lib80211_crypt_wep");
+			new_crypt->ops = lib80211_get_crypto_ops("WEP");
 		}
 
 		if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
···
 			new_crypt = NULL;
 
 			printk(KERN_WARNING "%s: could not initialize WEP: "
-			       "load module ieee80211_crypt_wep\n", dev->name);
+			       "load module lib80211_crypt_wep\n", dev->name);
 			return -EOPNOTSUPP;
 		}
 		*crypt = new_crypt;
···
 		if (key_provided) {
 			IEEE80211_DEBUG_WX("Setting key %d to default Tx "
 					   "key.\n", key);
-			ieee->tx_keyidx = key;
+			ieee->crypt_info.tx_keyidx = key;
 			sec.active_key = key;
 			sec.flags |= SEC_ACTIVE_KEY;
 		}
···
 {
 	struct iw_point *erq = &(wrqu->encoding);
 	int len, key;
-	struct ieee80211_crypt_data *crypt;
+	struct lib80211_crypt_data *crypt;
 	struct ieee80211_security *sec = &ieee->sec;
 
 	IEEE80211_DEBUG_WX("GET_ENCODE\n");
···
 			return -EINVAL;
 		key--;
 	} else
-		key = ieee->tx_keyidx;
+		key = ieee->crypt_info.tx_keyidx;
 
-	crypt = ieee->crypt[key];
+	crypt = ieee->crypt_info.crypt[key];
 	erq->flags = key + 1;
 
 	if (!sec->enabled) {
···
 	int i, idx, ret = 0;
 	int group_key = 0;
 	const char *alg, *module;
-	struct ieee80211_crypto_ops *ops;
-	struct ieee80211_crypt_data **crypt;
+	struct lib80211_crypto_ops *ops;
+	struct lib80211_crypt_data **crypt;
 
 	struct ieee80211_security sec = {
 		.flags = 0,
···
 			return -EINVAL;
 		idx--;
 	} else
-		idx = ieee->tx_keyidx;
+		idx = ieee->crypt_info.tx_keyidx;
 
 	if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
-		crypt = &ieee->crypt[idx];
+		crypt = &ieee->crypt_info.crypt[idx];
 		group_key = 1;
 	} else {
 		/* some Cisco APs use idx>0 for unicast in dynamic WEP */
 		if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
 			return -EINVAL;
 		if (ieee->iw_mode == IW_MODE_INFRA)
-			crypt = &ieee->crypt[idx];
+			crypt = &ieee->crypt_info.crypt[idx];
 		else
 			return -EINVAL;
 	}
···
 	if ((encoding->flags & IW_ENCODE_DISABLED) ||
 	    ext->alg == IW_ENCODE_ALG_NONE) {
 		if (*crypt)
-			ieee80211_crypt_delayed_deinit(ieee, crypt);
+			lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 
 		for (i = 0; i < WEP_KEYS; i++)
-			if (ieee->crypt[i] != NULL)
+			if (ieee->crypt_info.crypt[i] != NULL)
 				break;
 
 		if (i == WEP_KEYS) {
···
 	switch (ext->alg) {
 	case IW_ENCODE_ALG_WEP:
 		alg = "WEP";
-		module = "ieee80211_crypt_wep";
+		module = "lib80211_crypt_wep";
 		break;
 	case IW_ENCODE_ALG_TKIP:
 		alg = "TKIP";
-		module = "ieee80211_crypt_tkip";
+		module = "lib80211_crypt_tkip";
 		break;
 	case IW_ENCODE_ALG_CCMP:
 		alg = "CCMP";
-		module = "ieee80211_crypt_ccmp";
+		module = "lib80211_crypt_ccmp";
 		break;
 	default:
 		IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
···
 		goto done;
 	}
 
-	ops = ieee80211_get_crypto_ops(alg);
+	ops = lib80211_get_crypto_ops(alg);
 	if (ops == NULL) {
 		request_module(module);
-		ops = ieee80211_get_crypto_ops(alg);
+		ops = lib80211_get_crypto_ops(alg);
 	}
 	if (ops == NULL) {
 		IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
···
 	}
 
 	if (*crypt == NULL || (*crypt)->ops != ops) {
-		struct ieee80211_crypt_data *new_crypt;
+		struct lib80211_crypt_data *new_crypt;
 
-		ieee80211_crypt_delayed_deinit(ieee, crypt);
+		lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
 
 		new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
 		if (new_crypt == NULL) {
···
 
       skip_host_crypt:
 	if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
-		ieee->tx_keyidx = idx;
+		ieee->crypt_info.tx_keyidx = idx;
 		sec.active_key = idx;
 		sec.flags |= SEC_ACTIVE_KEY;
 	}
···
 			return -EINVAL;
 		idx--;
 	} else
-		idx = ieee->tx_keyidx;
+		idx = ieee->crypt_info.tx_keyidx;
 
 	if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
 	    ext->alg != IW_ENCODE_ALG_WEP)

net/wireless/Kconfig

···
 
 	  Drivers should select this themselves if needed.  Say Y if
 	  you want this built into your kernel.
+
+config LIB80211_CRYPT_WEP
+	tristate
+
+config LIB80211_CRYPT_CCMP
+	tristate
+
+config LIB80211_CRYPT_TKIP
+	tristate

net/wireless/Makefile

···
 obj-$(CONFIG_WIRELESS_EXT) += wext.o
 obj-$(CONFIG_CFG80211) += cfg80211.o
 obj-$(CONFIG_LIB80211) += lib80211.o
+obj-$(CONFIG_LIB80211_CRYPT_WEP) += lib80211_crypt_wep.o
+obj-$(CONFIG_LIB80211_CRYPT_CCMP) += lib80211_crypt_ccmp.o
+obj-$(CONFIG_LIB80211_CRYPT_TKIP) += lib80211_crypt_tkip.o
 
 cfg80211-y += core.o sysfs.o radiotap.o util.o reg.o
 cfg80211-$(CONFIG_NL80211) += nl80211.o

net/wireless/lib80211.c

···
  *
  * Copyright(c) 2008 John W. Linville <[e-mail]>
  *
+ * Portions copied from old ieee80211 component, w/ original copyright
+ * notices below:
+ *
+ * Host AP crypto routines
+ *
+ * Copyright (c) 2002-2003, Jouni Malinen <[e-mail]>
+ * Portions Copyright (C) 2004, Intel Corporation <[e-mail]>
+ *
  */
 
 #include <linux/module.h>
 #include <linux/ctype.h>
 #include <linux/ieee80211.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/string.h>
 
 #include <net/lib80211.h>
 
···
 MODULE_DESCRIPTION(DRV_DESCRIPTION);
 MODULE_AUTHOR("John W. Linville <[e-mail]>");
 MODULE_LICENSE("GPL");
+
+struct lib80211_crypto_alg {
+	struct list_head list;
+	struct lib80211_crypto_ops *ops;
+};
+
+static LIST_HEAD(lib80211_crypto_algs);
+static DEFINE_SPINLOCK(lib80211_crypto_lock);
 
 const char *print_ssid(char *buf, const char *ssid, u8 ssid_len)
 {
···
 }
 EXPORT_SYMBOL(print_ssid);
 
-static int __init ieee80211_init(void)
+void lib80211_crypt_deinit_entries(struct lib80211_crypt_info *info, int force)
 {
-	printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION "\n");
+	struct lib80211_crypt_data *entry, *next;
+	unsigned long flags;
+
+	spin_lock_irqsave(info->lock, flags);
+	list_for_each_entry_safe(entry, next, &info->crypt_deinit_list, list) {
+		if (atomic_read(&entry->refcnt) != 0 && !force)
+			continue;
+
+		list_del(&entry->list);
+
+		if (entry->ops) {
+			entry->ops->deinit(entry->priv);
+			module_put(entry->ops->owner);
+		}
+		kfree(entry);
+	}
+	spin_unlock_irqrestore(info->lock, flags);
+}
+EXPORT_SYMBOL(lib80211_crypt_deinit_entries);
+
+/* After this, crypt_deinit_list won't accept new members */
+void lib80211_crypt_quiescing(struct lib80211_crypt_info *info)
+{
+	unsigned long flags;
+
+	spin_lock_irqsave(info->lock, flags);
+	info->crypt_quiesced = 1;
+	spin_unlock_irqrestore(info->lock, flags);
+}
+EXPORT_SYMBOL(lib80211_crypt_quiescing);
+
+void lib80211_crypt_deinit_handler(unsigned long data)
+{
+	struct lib80211_crypt_info *info = (struct lib80211_crypt_info *)data;
+	unsigned long flags;
+
+	lib80211_crypt_deinit_entries(info, 0);
+
+	spin_lock_irqsave(info->lock, flags);
+	if (!list_empty(&info->crypt_deinit_list) && !info->crypt_quiesced) {
+		printk(KERN_DEBUG "%s: entries remaining in delayed crypt "
+		       "deletion list\n", info->name);
+		info->crypt_deinit_timer.expires = jiffies + HZ;
+		add_timer(&info->crypt_deinit_timer);
+	}
+	spin_unlock_irqrestore(info->lock, flags);
+}
+EXPORT_SYMBOL(lib80211_crypt_deinit_handler);
+
+void lib80211_crypt_delayed_deinit(struct lib80211_crypt_info *info,
+				    struct lib80211_crypt_data **crypt)
+{
+	struct lib80211_crypt_data *tmp;
+	unsigned long flags;
+
+	if (*crypt == NULL)
+		return;
+
+	tmp = *crypt;
+	*crypt = NULL;
+
+	/* must not run ops->deinit() while there may be pending encrypt or
+	 * decrypt operations. Use a list of delayed deinits to avoid needing
+	 * locking. */
+
+	spin_lock_irqsave(info->lock, flags);
+	if (!info->crypt_quiesced) {
+		list_add(&tmp->list, &info->crypt_deinit_list);
+		if (!timer_pending(&info->crypt_deinit_timer)) {
+			info->crypt_deinit_timer.expires = jiffies + HZ;
+			add_timer(&info->crypt_deinit_timer);
+		}
+	}
+	spin_unlock_irqrestore(info->lock, flags);
+}
+EXPORT_SYMBOL(lib80211_crypt_delayed_deinit);
+
+int lib80211_register_crypto_ops(struct lib80211_crypto_ops *ops)
+{
+	unsigned long flags;
+	struct lib80211_crypto_alg *alg;
+
+	alg = kzalloc(sizeof(*alg), GFP_KERNEL);
+	if (alg == NULL)
+		return -ENOMEM;
+
+	alg->ops = ops;
+
+	spin_lock_irqsave(&lib80211_crypto_lock, flags);
+	list_add(&alg->list, &lib80211_crypto_algs);
+	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
+
+	printk(KERN_DEBUG "lib80211_crypt: registered algorithm '%s'\n",
+	       ops->name);
+
 	return 0;
 }
+EXPORT_SYMBOL(lib80211_register_crypto_ops);
 
-static void __exit ieee80211_exit(void)
+int lib80211_unregister_crypto_ops(struct lib80211_crypto_ops *ops)
+{
+	struct lib80211_crypto_alg *alg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&lib80211_crypto_lock, flags);
+	list_for_each_entry(alg, &lib80211_crypto_algs, list) {
+		if (alg->ops == ops)
+			goto found;
+	}
+	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
+	return -EINVAL;
+
+      found:
+	printk(KERN_DEBUG "lib80211_crypt: unregistered algorithm "
+	       "'%s'\n", ops->name);
+	list_del(&alg->list);
+	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
+	kfree(alg);
+	return 0;
+}
+EXPORT_SYMBOL(lib80211_unregister_crypto_ops);
+
+struct lib80211_crypto_ops *lib80211_get_crypto_ops(const char *name)
+{
+	struct lib80211_crypto_alg *alg;
+	unsigned long flags;
+
+	spin_lock_irqsave(&lib80211_crypto_lock, flags);
+	list_for_each_entry(alg, &lib80211_crypto_algs, list) {
+		if (strcmp(alg->ops->name, name) == 0)
+			goto found;
+	}
+	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
+	return NULL;
+
+      found:
+	spin_unlock_irqrestore(&lib80211_crypto_lock, flags);
+	return alg->ops;
+}
+EXPORT_SYMBOL(lib80211_get_crypto_ops);
+
+static void *lib80211_crypt_null_init(int keyidx)
+{
+	return (void *)1;
+}
+
+static void lib80211_crypt_null_deinit(void *priv)
 {
 }
 
-module_init(ieee80211_init);
-module_exit(ieee80211_exit);
+static struct lib80211_crypto_ops lib80211_crypt_null = {
+	.name = "NULL",
+	.init = lib80211_crypt_null_init,
+	.deinit = lib80211_crypt_null_deinit,
+	.owner = THIS_MODULE,
+};
+
+static int __init lib80211_init(void)
+{
+	printk(KERN_INFO DRV_NAME ": " DRV_DESCRIPTION "\n");
+	return lib80211_register_crypto_ops(&lib80211_crypt_null);
+}
+
+static void __exit lib80211_exit(void)
+{
+	lib80211_unregister_crypto_ops(&lib80211_crypt_null);
+	BUG_ON(!list_empty(&lib80211_crypto_algs));
+}
+
+module_init(lib80211_init);
+module_exit(lib80211_exit);