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 <linville@tuxdriver.com>

10 files changed, 58 insertions, 1842 deletions

diff --git a/net/ieee80211/Kconfig b/net/ieee80211/Kconfig
index d2282bb2e4f..46f24f4c9dc 100644
--- a/net/ieee80211/Kconfig
+++ b/net/ieee80211/Kconfig
@@ -8,10 +8,10 @@ config IEEE80211
 	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
@@ -39,12 +39,3 @@ config IEEE80211_DEBUG
 
 	  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
diff --git a/net/ieee80211/Makefile b/net/ieee80211/Makefile
index f988417121d..158963ff18d 100644
--- a/net/ieee80211/Makefile
+++ b/net/ieee80211/Makefile
@@ -1,8 +1,4 @@
 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 \
diff --git a/net/ieee80211/ieee80211_crypt.c b/net/ieee80211/ieee80211_crypt.c
deleted file mode 100644
index df5592c9339..00000000000
--- a/net/ieee80211/ieee80211_crypt.c
+++ /dev/null
@@ -1,206 +0,0 @@
-/*
- * Host AP crypto routines
- *
- * Copyright (c) 2002-2003, Jouni Malinen <j@w1.fi>
- * Portions Copyright (C) 2004, Intel Corporation <jketreno@linux.intel.com>
- *
- * 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);
diff --git a/net/ieee80211/ieee80211_crypt_ccmp.c b/net/ieee80211/ieee80211_crypt_ccmp.c
deleted file mode 100644
index bea04af0b48..00000000000
--- a/net/ieee80211/ieee80211_crypt_ccmp.c
+++ /dev/null
@@ -1,492 +0,0 @@
-/*
- * Host AP crypt: host-based CCMP encryption implementation for Host AP driver
- *
- * Copyright (c) 2003-2004, Jouni Malinen <j@w1.fi>
- *
- * 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/kernel.h>
-#include <linux/err.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/if_ether.h>
-#include <linux/if_arp.h>
-#include <asm/string.h>
-#include <linux/wireless.h>
-
-#include <net/ieee80211.h>
-
-#include <linux/crypto.h>
-
-MODULE_AUTHOR("Jouni Malinen");
-MODULE_DESCRIPTION("Host AP crypt: CCMP");
-MODULE_LICENSE("GPL");
-
-#define AES_BLOCK_LEN 16
-#define CCMP_HDR_LEN 8
-#define CCMP_MIC_LEN 8
-#define CCMP_TK_LEN 16
-#define CCMP_PN_LEN 6
-
-struct ieee80211_ccmp_data {
-	u8 key[CCMP_TK_LEN];
-	int key_set;
-
-	u8 tx_pn[CCMP_PN_LEN];
-	u8 rx_pn[CCMP_PN_LEN];
-
-	u32 dot11RSNAStatsCCMPFormatErrors;
-	u32 dot11RSNAStatsCCMPReplays;
-	u32 dot11RSNAStatsCCMPDecryptErrors;
-
-	int key_idx;
-
-	struct crypto_cipher *tfm;
-
-	/* scratch buffers for virt_to_page() (crypto API) */
-	u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN],
-	    tx_e[AES_BLOCK_LEN], tx_s0[AES_BLOCK_LEN];
-	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,
-					      const u8 pt[16], u8 ct[16])
-{
-	crypto_cipher_encrypt_one(tfm, ct, pt);
-}
-
-static void *ieee80211_ccmp_init(int key_idx)
-{
-	struct ieee80211_ccmp_data *priv;
-
-	priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
-	if (priv == NULL)
-		goto fail;
-	priv->key_idx = key_idx;
-
-	priv->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
-	if (IS_ERR(priv->tfm)) {
-		printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate "
-		       "crypto API aes\n");
-		priv->tfm = NULL;
-		goto fail;
-	}
-
-	return priv;
-
-      fail:
-	if (priv) {
-		if (priv->tfm)
-			crypto_free_cipher(priv->tfm);
-		kfree(priv);
-	}
-
-	return NULL;
-}
-
-static void ieee80211_ccmp_deinit(void *priv)
-{
-	struct ieee80211_ccmp_data *_priv = priv;
-	if (_priv && _priv->tfm)
-		crypto_free_cipher(_priv->tfm);
-	kfree(priv);
-}
-
-static inline void xor_block(u8 * b, u8 * a, size_t len)
-{
-	int i;
-	for (i = 0; i < len; i++)
-		b[i] ^= a[i];
-}
-
-static void ccmp_init_blocks(struct crypto_cipher *tfm,
-			     struct ieee80211_hdr_4addr *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));
-	aad_len = 22;
-	if (a4_included)
-		aad_len += 6;
-	if (qc_included) {
-		pos = (u8 *) & hdr->addr4;
-		if (a4_included)
-			pos += 6;
-		qc = *pos & 0x0f;
-		aad_len += 2;
-	}
-
-	/* CCM Initial Block:
-	 * Flag (Include authentication header, M=3 (8-octet MIC),
-	 *       L=1 (2-octet Dlen))
-	 * Nonce: 0x00 | A2 | PN
-	 * Dlen */
-	b0[0] = 0x59;
-	b0[1] = qc;
-	memcpy(b0 + 2, hdr->addr2, ETH_ALEN);
-	memcpy(b0 + 8, pn, CCMP_PN_LEN);
-	b0[14] = (dlen >> 8) & 0xff;
-	b0[15] = dlen & 0xff;
-
-	/* AAD:
-	 * FC with bits 4..6 and 11..13 masked to zero; 14 is always one
-	 * A1 | A2 | A3
-	 * SC with bits 4..15 (seq#) masked to zero
-	 * A4 (if present)
-	 * QC (if present)
-	 */
-	pos = (u8 *) hdr;
-	aad[0] = 0;		/* aad_len >> 8 */
-	aad[1] = aad_len & 0xff;
-	aad[2] = pos[0] & 0x8f;
-	aad[3] = pos[1] & 0xc7;
-	memcpy(aad + 4, hdr->addr1, 3 * ETH_ALEN);
-	pos = (u8 *) & hdr->seq_ctl;
-	aad[22] = pos[0] & 0x0f;
-	aad[23] = 0;		/* all bits masked */
-	memset(aad + 24, 0, 8);
-	if (a4_included)
-		memcpy(aad + 24, hdr->addr4, ETH_ALEN);
-	if (qc_included) {
-		aad[a4_included ? 30 : 24] = qc;
-		/* rest of QC masked */
-	}
-
-	/* Start with the first block and AAD */
-	ieee80211_ccmp_aes_encrypt(tfm, b0, auth);
-	xor_block(auth, aad, AES_BLOCK_LEN);
-	ieee80211_ccmp_aes_encrypt(tfm, auth, auth);
-	xor_block(auth, &aad[AES_BLOCK_LEN], AES_BLOCK_LEN);
-	ieee80211_ccmp_aes_encrypt(tfm, auth, auth);
-	b0[0] &= 0x07;
-	b0[14] = b0[15] = 0;
-	ieee80211_ccmp_aes_encrypt(tfm, b0, s0);
-}
-
-static int ieee80211_ccmp_hdr(struct sk_buff *skb, int hdr_len,
-			      u8 *aeskey, int keylen, void *priv)
-{
-	struct ieee80211_ccmp_data *key = priv;
-	int i;
-	u8 *pos;
-
-	if (skb_headroom(skb) < CCMP_HDR_LEN || skb->len < hdr_len)
-		return -1;
-
-	if (aeskey != NULL && keylen >= CCMP_TK_LEN)
-		memcpy(aeskey, key->key, CCMP_TK_LEN);
-
-	pos = skb_push(skb, CCMP_HDR_LEN);
-	memmove(pos, pos + CCMP_HDR_LEN, hdr_len);
-	pos += hdr_len;
-
-	i = CCMP_PN_LEN - 1;
-	while (i >= 0) {
-		key->tx_pn[i]++;
-		if (key->tx_pn[i] != 0)
-			break;
-		i--;
-	}
-
-	*pos++ = key->tx_pn[5];
-	*pos++ = key->tx_pn[4];
-	*pos++ = 0;
-	*pos++ = (key->key_idx << 6) | (1 << 5) /* Ext IV included */ ;
-	*pos++ = key->tx_pn[3];
-	*pos++ = key->tx_pn[2];
-	*pos++ = key->tx_pn[1];
-	*pos++ = key->tx_pn[0];
-
-	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, 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;
-	ccmp_init_blocks(key->tfm, hdr, key->tx_pn, data_len, b0, b, s0);
-
-	blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
-	last = data_len % AES_BLOCK_LEN;
-
-	for (i = 1; i <= blocks; i++) {
-		len = (i == blocks && last) ? last : AES_BLOCK_LEN;
-		/* Authentication */
-		xor_block(b, pos, len);
-		ieee80211_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);
-		xor_block(pos, e, len);
-		pos += len;
-	}
-
-	for (i = 0; i < CCMP_MIC_LEN; i++)
-		mic[i] = b[i] ^ s0[i];
-
-	return 0;
-}
-
-/*
- * deal with seq counter wrapping correctly.
- * refer to timer_after() for jiffies wrapping handling
- */
-static inline int ccmp_replay_check(u8 *pn_n, u8 *pn_o)
-{
-	u32 iv32_n, iv16_n;
-	u32 iv32_o, iv16_o;
-
-	iv32_n = (pn_n[0] << 24) | (pn_n[1] << 16) | (pn_n[2] << 8) | pn_n[3];
-	iv16_n = (pn_n[4] << 8) | pn_n[5];
-
-	iv32_o = (pn_o[0] << 24) | (pn_o[1] << 16) | (pn_o[2] << 8) | pn_o[3];
-	iv16_o = (pn_o[4] << 8) | pn_o[5];
-
-	if ((s32)iv32_n - (s32)iv32_o < 0 ||
-	    (iv32_n == iv32_o && iv16_n <= iv16_o))
-		return 1;
-	return 0;
-}
-
-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_4addr *hdr;
-	u8 *b0 = key->rx_b0;
-	u8 *b = key->rx_b;
-	u8 *a = key->rx_a;
-	u8 pn[6];
-	int i, blocks, last, len;
-	size_t data_len = skb->len - hdr_len - CCMP_HDR_LEN - CCMP_MIC_LEN;
-	u8 *mic = skb->data + skb->len - CCMP_MIC_LEN;
-
-	if (skb->len < hdr_len + CCMP_HDR_LEN + CCMP_MIC_LEN) {
-		key->dot11RSNAStatsCCMPFormatErrors++;
-		return -1;
-	}
-
-	hdr = (struct ieee80211_hdr_4addr *)skb->data;
-	pos = skb->data + hdr_len;
-	keyidx = pos[3];
-	if (!(keyidx & (1 << 5))) {
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "CCMP: received packet without ExtIV"
-			       " flag from %pM\n", hdr->addr2);
-		}
-		key->dot11RSNAStatsCCMPFormatErrors++;
-		return -2;
-	}
-	keyidx >>= 6;
-	if (key->key_idx != keyidx) {
-		printk(KERN_DEBUG "CCMP: RX tkey->key_idx=%d frame "
-		       "keyidx=%d priv=%p\n", key->key_idx, keyidx, priv);
-		return -6;
-	}
-	if (!key->key_set) {
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "CCMP: received packet from %pM"
-			       " with keyid=%d that does not have a configured"
-			       " key\n", hdr->addr2, keyidx);
-		}
-		return -3;
-	}
-
-	pn[0] = pos[7];
-	pn[1] = pos[6];
-	pn[2] = pos[5];
-	pn[3] = pos[4];
-	pn[4] = pos[1];
-	pn[5] = pos[0];
-	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 "
-				 "previous PN %02x%02x%02x%02x%02x%02x "
-				 "received PN %02x%02x%02x%02x%02x%02x\n",
-				 hdr->addr2,
-				 key->rx_pn[0], key->rx_pn[1], key->rx_pn[2],
-				 key->rx_pn[3], key->rx_pn[4], key->rx_pn[5],
-				 pn[0], pn[1], pn[2], pn[3], pn[4], pn[5]);
-		}
-		key->dot11RSNAStatsCCMPReplays++;
-		return -4;
-	}
-
-	ccmp_init_blocks(key->tfm, hdr, pn, data_len, b0, a, b);
-	xor_block(mic, b, CCMP_MIC_LEN);
-
-	blocks = DIV_ROUND_UP(data_len, AES_BLOCK_LEN);
-	last = data_len % AES_BLOCK_LEN;
-
-	for (i = 1; i <= blocks; i++) {
-		len = (i == blocks && last) ? last : AES_BLOCK_LEN;
-		/* Decrypt, with counter */
-		b0[14] = (i >> 8) & 0xff;
-		b0[15] = i & 0xff;
-		ieee80211_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);
-		pos += len;
-	}
-
-	if (memcmp(mic, a, CCMP_MIC_LEN) != 0) {
-		if (net_ratelimit()) {
-			printk(KERN_DEBUG "CCMP: decrypt failed: STA="
-			       "%pM\n", hdr->addr2);
-		}
-		key->dot11RSNAStatsCCMPDecryptErrors++;
-		return -5;
-	}
-
-	memcpy(key->rx_pn, pn, CCMP_PN_LEN);
-
-	/* Remove hdr and MIC */
-	memmove(skb->data + CCMP_HDR_LEN, skb->data, hdr_len);
-	skb_pull(skb, CCMP_HDR_LEN);
-	skb_trim(skb, skb->len - CCMP_MIC_LEN);
-
-	return keyidx;
-}
-
-static int ieee80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv)
-{
-	struct ieee80211_ccmp_data *data = priv;
-	int keyidx;
-	struct crypto_cipher *tfm = data->tfm;
-
-	keyidx = data->key_idx;
-	memset(data, 0, sizeof(*data));
-	data->key_idx = keyidx;
-	data->tfm = tfm;
-	if (len == CCMP_TK_LEN) {
-		memcpy(data->key, key, CCMP_TK_LEN);
-		data->key_set = 1;
-		if (seq) {
-			data->rx_pn[0] = seq[5];
-			data->rx_pn[1] = seq[4];
-			data->rx_pn[2] = seq[3];
-			data->rx_pn[3] = seq[2];
-			data->rx_pn[4] = seq[1];
-			data->rx_pn[5] = seq[0];
-		}
-		crypto_cipher_setkey(data->tfm, data->key, CCMP_TK_LEN);
-	} else if (len == 0)
-		data->key_set = 0;
-	else
-		return -1;
-
-	return 0;
-}
-
-static int ieee80211_ccmp_get_key(void *key, int len, u8 * seq, void *priv)
-{
-	struct ieee80211_ccmp_data *data = priv;
-
-	if (len < CCMP_TK_LEN)
-		return -1;
-
-	if (!data->key_set)
-		return 0;
-	memcpy(key, data->key, CCMP_TK_LEN);
-
-	if (seq) {
-		seq[0] = data->tx_pn[5];
-		seq[1] = data->tx_pn[4];
-		seq[2] = data->tx_pn[3];
-		seq[3] = data->tx_pn[2];
-		seq[4] = data->tx_pn[1];
-		seq[5] = data->tx_pn[0];
-	}
-
-	return CCMP_TK_LEN;
-}
-
-static char *ieee80211_ccmp_print_stats(char *p, void *priv)
-{
-	struct ieee80211_ccmp_data *ccmp = priv;
-
-	p += sprintf(p, "key[%d] alg=CCMP key_set=%d "
-		     "tx_pn=%02x%02x%02x%02x%02x%02x "
-		     "rx_pn=%02x%02x%02x%02x%02x%02x "
-		     "format_errors=%d replays=%d decrypt_errors=%d\n",
-		     ccmp->key_idx, ccmp->key_set,
-		     ccmp->tx_pn[0], ccmp->tx_pn[1], ccmp->tx_pn[2],
-		     ccmp->tx_pn[3], ccmp->tx_pn[4], ccmp->tx_pn[5],
-		     ccmp->rx_pn[0], ccmp->rx_pn[1], ccmp->rx_pn[2],
-		     ccmp->rx_pn[3], ccmp->rx_pn[4], ccmp->rx_pn[5],
-		     ccmp->dot11RSNAStatsCCMPFormatErrors,
-		     ccmp->dot11RSNAStatsCCMPReplays,
-		     ccmp->dot11RSNAStatsCCMPDecryptErrors);
-
-	return p;
-}
-
-static struct ieee80211_crypto_ops ieee80211_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,
-	.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)
-{
-	return ieee80211_register_crypto_ops(&ieee80211_crypt_ccmp);
-}
-
-static void __exit ieee80211_crypto_ccmp_exit(void)
-{
-	ieee80211_unregister_crypto_ops(&ieee80211_crypt_ccmp);
-}
-
-module_init(ieee80211_crypto_ccmp_init);
-module_exit(ieee80211_crypto_ccmp_exit);
diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c
deleted file mode 100644
index d12da1da632..00000000000
--- a/net/ieee80211/ieee80211_crypt_tkip.c
+++ /dev/null
@@ -1,782 +0,0 @@
-/*
- * Host AP crypt: host-based TKIP encryption implementation for Host AP driver
- *
- * Copyright (c) 2003-2004, Jouni Malinen <j@w1.fi>
- *
- * 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/err.h>
-#include <linux/module.h>
-#include <linux/init.h>
-#include <linux/slab.h>
-#include <linux/random.h>
-#include <linux/scatterlist.h>
-#include <linux/skbuff.h>
-#include <linux/netdevice.h>
-#include <linux/mm.h>
-#include <linux/if_ether.h>
-#include <linux/if_arp.h>
-#include <asm/string.h>
-
-#include <net/ieee80211.h>
-
-#include <linux/crypto.h>
-#include <linux/crc32.h>
-
-MODULE_AUTHOR("Jouni Malinen");
-MODULE_DESCRIPTION("Host AP crypt: TKIP");
-MODULE_LICENSE("GPL");
-
-struct ieee80211_tkip_data {
-#define TKIP_KEY_LEN 32
-	u8 key[TKIP_KEY_LEN];
-	int key_set;
-
-	u32 tx_iv32;
-	u16 tx_iv16;
-	u16 tx_ttak[5];
-	int tx_phase1_done;
-
-	u32 rx_iv32;
-	u16 rx_iv16;
-	u16 rx_ttak[5];
-	int rx_phase1_done;
-	u32 rx_iv32_new;
-	u16 rx_iv16_new;
-
-	u32 dot11RSNAStatsTKIPReplays;
-	u32 dot11RSNAStatsTKIPICVErrors;
-	u32 dot11RSNAStatsTKIPLocalMICFailures;
-
-	int key_idx;
-
-	struct crypto_blkcipher *rx_tfm_arc4;
-	struct crypto_hash *rx_tfm_michael;
-	struct crypto_blkcipher *tx_tfm_arc4;
-	struct crypto_hash *tx_tfm_michael;
-
-	/* 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;
-
-	priv = kzalloc(sizeof(*priv), GFP_ATOMIC);
-	if (priv == NULL)
-		goto fail;
-
-	priv->key_idx = key_idx;
-
-	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 "
-		       "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 "
-		       "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 "
-		       "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 "
-		       "crypto API michael_mic\n");
-		priv->rx_tfm_michael = NULL;
-		goto fail;
-	}
-
-	return priv;
-
-      fail:
-	if (priv) {
-		if (priv->tx_tfm_michael)
-			crypto_free_hash(priv->tx_tfm_michael);
-		if (priv->tx_tfm_arc4)
-			crypto_free_blkcipher(priv->tx_tfm_arc4);
-		if (priv->rx_tfm_michael)
-			crypto_free_hash(priv->rx_tfm_michael);
-		if (priv->rx_tfm_arc4)
-			crypto_free_blkcipher(priv->rx_tfm_arc4);
-		kfree(priv);
-	}
-
-	return NULL;
-}
-
-static void ieee80211_tkip_deinit(void *priv)
-{
-	struct ieee80211_tkip_data *_priv = priv;
-	if (_priv) {
-		if (_priv->tx_tfm_michael)
-			crypto_free_hash(_priv->tx_tfm_michael);
-		if (_priv->tx_tfm_arc4)
-			crypto_free_blkcipher(_priv->tx_tfm_arc4);
-		if (_priv->rx_tfm_michael)
-			crypto_free_hash(_priv->rx_tfm_michael);
-		if (_priv->rx_tfm_arc4)
-			crypto_free_blkcipher(_priv->rx_tfm_arc4);
-	}
-	kfree(priv);
-}
-
-static inline u16 RotR1(u16 val)
-{
-	return (val >> 1) | (val << 15);
-}
-
-static inline u8 Lo8(u16 val)
-{
-	return val & 0xff;
-}
-
-static inline u8 Hi8(u16 val)
-{
-	return val >> 8;
-}
-
-static inline u16 Lo16(u32 val)
-{
-	return val & 0xffff;
-}
-
-static inline u16 Hi16(u32 val)
-{
-	return val >> 16;
-}
-
-static inline u16 Mk16(u8 hi, u8 lo)
-{
-	return lo | (((u16) hi) << 8);
-}
-
-static inline u16 Mk16_le(__le16 * v)
-{
-	return le16_to_cpu(*v);
-}
-
-static const u16 Sbox[256] = {
-	0xC6A5, 0xF884, 0xEE99, 0xF68D, 0xFF0D, 0xD6BD, 0xDEB1, 0x9154,
-	0x6050, 0x0203, 0xCEA9, 0x567D, 0xE719, 0xB562, 0x4DE6, 0xEC9A,
-	0x8F45, 0x1F9D, 0x8940, 0xFA87, 0xEF15, 0xB2EB, 0x8EC9, 0xFB0B,
-	0x41EC, 0xB367, 0x5FFD, 0x45EA, 0x23BF, 0x53F7, 0xE496, 0x9B5B,
-	0x75C2, 0xE11C, 0x3DAE, 0x4C6A, 0x6C5A, 0x7E41, 0xF502, 0x834F,
-	0x685C, 0x51F4, 0xD134, 0xF908, 0xE293, 0xAB73, 0x6253, 0x2A3F,
-	0x080C, 0x9552, 0x4665, 0x9D5E, 0x3028, 0x37A1, 0x0A0F, 0x2FB5,
-	0x0E09, 0x2436, 0x1B9B, 0xDF3D, 0xCD26, 0x4E69, 0x7FCD, 0xEA9F,
-	0x121B, 0x1D9E, 0x5874, 0x342E, 0x362D, 0xDCB2, 0xB4EE, 0x5BFB,
-	0xA4F6, 0x764D, 0xB761, 0x7DCE, 0x527B, 0xDD3E, 0x5E71, 0x1397,
-	0xA6F5, 0xB968, 0x0000, 0xC12C, 0x4060, 0xE31F, 0x79C8, 0xB6ED,
-	0xD4BE, 0x8D46, 0x67D9, 0x724B, 0x94DE, 0x98D4, 0xB0E8, 0x854A,
-	0xBB6B, 0xC52A, 0x4FE5, 0xED16, 0x86C5, 0x9AD7, 0x6655, 0x1194,
-	0x8ACF, 0xE910, 0x0406, 0xFE81, 0xA0F0, 0x7844, 0x25BA, 0x4BE3,
-	0xA2F3, 0x5DFE, 0x80C0, 0x058A, 0x3FAD, 0x21BC, 0x7048, 0xF104,
-	0x63DF, 0x77C1, 0xAF75, 0x4263, 0x2030, 0xE51A, 0xFD0E, 0xBF6D,
-	0x814C, 0x1814, 0x2635, 0xC32F, 0xBEE1, 0x35A2, 0x88CC, 0x2E39,
-	0x9357, 0x55F2, 0xFC82, 0x7A47, 0xC8AC, 0xBAE7, 0x322B, 0xE695,
-	0xC0A0, 0x1998, 0x9ED1, 0xA37F, 0x4466, 0x547E, 0x3BAB, 0x0B83,
-	0x8CCA, 0xC729, 0x6BD3, 0x283C, 0xA779, 0xBCE2, 0x161D, 0xAD76,
-	0xDB3B, 0x6456, 0x744E, 0x141E, 0x92DB, 0x0C0A, 0x486C, 0xB8E4,
-	0x9F5D, 0xBD6E, 0x43EF, 0xC4A6, 0x39A8, 0x31A4, 0xD337, 0xF28B,
-	0xD532, 0x8B43, 0x6E59, 0xDAB7, 0x018C, 0xB164, 0x9CD2, 0x49E0,
-	0xD8B4, 0xACFA, 0xF307, 0xCF25, 0xCAAF, 0xF48E, 0x47E9, 0x1018,
-	0x6FD5, 0xF088, 0x4A6F, 0x5C72, 0x3824, 0x57F1, 0x73C7, 0x9751,
-	0xCB23, 0xA17C, 0xE89C, 0x3E21, 0x96DD, 0x61DC, 0x0D86, 0x0F85,
-	0xE090, 0x7C42, 0x71C4, 0xCCAA, 0x90D8, 0x0605, 0xF701, 0x1C12,
-	0xC2A3, 0x6A5F, 0xAEF9, 0x69D0, 0x1791, 0x9958, 0x3A27, 0x27B9,
-	0xD938, 0xEB13, 0x2BB3, 0x2233, 0xD2BB, 0xA970, 0x0789, 0x33A7,
-	0x2DB6, 0x3C22, 0x1592, 0xC920, 0x8749, 0xAAFF, 0x5078, 0xA57A,
-	0x038F, 0x59F8, 0x0980, 0x1A17, 0x65DA, 0xD731, 0x84C6, 0xD0B8,
-	0x82C3, 0x29B0, 0x5A77, 0x1E11, 0x7BCB, 0xA8FC, 0x6DD6, 0x2C3A,
-};
-
-static inline u16 _S_(u16 v)
-{
-	u16 t = Sbox[Hi8(v)];
-	return Sbox[Lo8(v)] ^ ((t << 8) | (t >> 8));
-}
-
-#define PHASE1_LOOP_COUNT 8
-
-static void tkip_mixing_phase1(u16 * TTAK, const u8 * TK, const u8 * TA,
-			       u32 IV32)
-{
-	int i, j;
-
-	/* Initialize the 80-bit TTAK from TSC (IV32) and TA[0..5] */
-	TTAK[0] = Lo16(IV32);
-	TTAK[1] = Hi16(IV32);
-	TTAK[2] = Mk16(TA[1], TA[0]);
-	TTAK[3] = Mk16(TA[3], TA[2]);
-	TTAK[4] = Mk16(TA[5], TA[4]);
-
-	for (i = 0; i < PHASE1_LOOP_COUNT; i++) {
-		j = 2 * (i & 1);
-		TTAK[0] += _S_(TTAK[4] ^ Mk16(TK[1 + j], TK[0 + j]));
-		TTAK[1] += _S_(TTAK[0] ^ Mk16(TK[5 + j], TK[4 + j]));
-		TTAK[2] += _S_(TTAK[1] ^ Mk16(TK[9 + j], TK[8 + j]));
-		TTAK[3] += _S_(TTAK[2] ^ Mk16(TK[13 + j], TK[12 + j]));
-		TTAK[4] += _S_(TTAK[3] ^ Mk16(TK[1 + j], TK[0 + j])) + i;
-	}
-}
-
-static void tkip_mixing_phase2(u8 * WEPSeed, const u8 * TK, const u16 * TTAK,
-			       u16 IV16)
-{
-	/* Make temporary area overlap WEP seed so that the final copy can be
-	 * avoided on little endian hosts. */
-	u16 *PPK = (u16 *) & WEPSeed[4];
-
-	/* Step 1 - make copy of TTAK and bring in TSC */
-	PPK[0] = TTAK[0];
-	PPK[1] = TTAK[1];
-	PPK[2] = TTAK[2];
-	PPK[3] = TTAK[3];
-	PPK[4] = TTAK[4];
-	PPK[5] = TTAK[4] + IV16;
-
-	/* Step 2 - 96-bit bijective mixing using S-box */
-	PPK[0] += _S_(PPK[5] ^ Mk16_le((__le16 *) & TK[0]));
-	PPK[1] += _S_(PPK[0] ^ Mk16_le((__le16 *) & TK[2]));
-	PPK[2] += _S_(PPK[1] ^ Mk16_le((__le16 *) & TK[4]));
-	PPK[3] += _S_(PPK[2] ^ Mk16_le((__le16 *) & TK[6]));
-	PPK[4] += _S_(PPK[3] ^ Mk16_le((__le16 *) & TK[8]));
-	PPK[5] += _S_(PPK[4] ^ Mk16_le((__le16 *) & TK[10]));
-
-	PPK[0] += RotR1(PPK[5] ^ Mk16_le((__le16 *) & TK[12]));
-	PPK[1] += RotR1(PPK[0] ^ Mk16_le((__le16 *) & TK[14]));
-	PPK[2] += RotR1(PPK[1]);
-	PPK[3] += RotR1(PPK[2]);
-	PPK[4] += RotR1(PPK[3]);
-	PPK[5] += RotR1(PPK[4]);
-
-	/* Step 3 - bring in last of TK bits, assign 24-bit WEP IV value
-	 * WEPSeed[0..2] is transmitted as WEP IV */
-	WEPSeed[0] = Hi8(IV16);
-	WEPSeed[1] = (Hi8(IV16) | 0x20) & 0x7F;
-	WEPSeed[2] = Lo8(IV16);
-	WEPSeed[3] = Lo8((PPK[5] ^ Mk16_le((__le16 *) & TK[0])) >> 1);
-
-#ifdef __BIG_ENDIAN
-	{
-		int i;
-		for (i = 0; i < 6; i++)
-			PPK[i] = (PPK[i] << 8) | (PPK[i] >> 8);
-	}
-#endif
-}
-
-static int ieee80211_tkip_hdr(struct sk_buff *skb, int hdr_len,
-			      u8 * rc4key, int keylen, void *priv)
-{
-	struct ieee80211_tkip_data *tkey = priv;
-	int len;
-	u8 *pos;
-	struct