ASR_BASE

Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/package/kernel/mac80211/patches/subsys/100-remove-cryptoapi-dependencies.patch b/package/kernel/mac80211/patches/subsys/100-remove-cryptoapi-dependencies.patch
new file mode 100644
index 0000000..a03b060
--- /dev/null
+++ b/package/kernel/mac80211/patches/subsys/100-remove-cryptoapi-dependencies.patch
@@ -0,0 +1,699 @@
+--- a/net/mac80211/Makefile
++++ b/net/mac80211/Makefile
+@@ -7,7 +7,6 @@ mac80211-y := \
+ 	driver-ops.o \
+ 	sta_info.o \
+ 	wep.o \
+-	aead_api.o \
+ 	wpa.o \
+ 	scan.o offchannel.o \
+ 	ht.o agg-tx.o agg-rx.o \
+@@ -19,8 +18,8 @@ mac80211-y := \
+ 	rate.o \
+ 	michael.o \
+ 	tkip.o \
++	aes_ccm.o \
+ 	aes_cmac.o \
+-	aes_gmac.o \
+ 	fils_aead.o \
+ 	cfg.o \
+ 	ethtool.o \
+--- a/net/mac80211/aead_api.c
++++ /dev/null
+@@ -1,113 +0,0 @@
+-// SPDX-License-Identifier: GPL-2.0-only
+-/*
+- * Copyright 2003-2004, Instant802 Networks, Inc.
+- * Copyright 2005-2006, Devicescape Software, Inc.
+- * Copyright 2014-2015, Qualcomm Atheros, Inc.
+- *
+- * Rewrite: Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
+- */
+-
+-#include <linux/kernel.h>
+-#include <linux/types.h>
+-#include <linux/err.h>
+-#include <linux/scatterlist.h>
+-#include <crypto/aead.h>
+-
+-#include "aead_api.h"
+-
+-int aead_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, size_t aad_len,
+-		 u8 *data, size_t data_len, u8 *mic)
+-{
+-	size_t mic_len = crypto_aead_authsize(tfm);
+-	struct scatterlist sg[3];
+-	struct aead_request *aead_req;
+-	int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
+-	u8 *__aad;
+-	int ret;
+-
+-	aead_req = kzalloc(reqsize + aad_len, GFP_ATOMIC);
+-	if (!aead_req)
+-		return -ENOMEM;
+-
+-	__aad = (u8 *)aead_req + reqsize;
+-	memcpy(__aad, aad, aad_len);
+-
+-	sg_init_table(sg, 3);
+-	sg_set_buf(&sg[0], __aad, aad_len);
+-	sg_set_buf(&sg[1], data, data_len);
+-	sg_set_buf(&sg[2], mic, mic_len);
+-
+-	aead_request_set_tfm(aead_req, tfm);
+-	aead_request_set_crypt(aead_req, sg, sg, data_len, b_0);
+-	aead_request_set_ad(aead_req, sg[0].length);
+-
+-	ret = crypto_aead_encrypt(aead_req);
+-	kfree_sensitive(aead_req);
+-
+-	return ret;
+-}
+-
+-int aead_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad, size_t aad_len,
+-		 u8 *data, size_t data_len, u8 *mic)
+-{
+-	size_t mic_len = crypto_aead_authsize(tfm);
+-	struct scatterlist sg[3];
+-	struct aead_request *aead_req;
+-	int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
+-	u8 *__aad;
+-	int err;
+-
+-	if (data_len == 0)
+-		return -EINVAL;
+-
+-	aead_req = kzalloc(reqsize + aad_len, GFP_ATOMIC);
+-	if (!aead_req)
+-		return -ENOMEM;
+-
+-	__aad = (u8 *)aead_req + reqsize;
+-	memcpy(__aad, aad, aad_len);
+-
+-	sg_init_table(sg, 3);
+-	sg_set_buf(&sg[0], __aad, aad_len);
+-	sg_set_buf(&sg[1], data, data_len);
+-	sg_set_buf(&sg[2], mic, mic_len);
+-
+-	aead_request_set_tfm(aead_req, tfm);
+-	aead_request_set_crypt(aead_req, sg, sg, data_len + mic_len, b_0);
+-	aead_request_set_ad(aead_req, sg[0].length);
+-
+-	err = crypto_aead_decrypt(aead_req);
+-	kfree_sensitive(aead_req);
+-
+-	return err;
+-}
+-
+-struct crypto_aead *
+-aead_key_setup_encrypt(const char *alg, const u8 key[],
+-		       size_t key_len, size_t mic_len)
+-{
+-	struct crypto_aead *tfm;
+-	int err;
+-
+-	tfm = crypto_alloc_aead(alg, 0, CRYPTO_ALG_ASYNC);
+-	if (IS_ERR(tfm))
+-		return tfm;
+-
+-	err = crypto_aead_setkey(tfm, key, key_len);
+-	if (err)
+-		goto free_aead;
+-	err = crypto_aead_setauthsize(tfm, mic_len);
+-	if (err)
+-		goto free_aead;
+-
+-	return tfm;
+-
+-free_aead:
+-	crypto_free_aead(tfm);
+-	return ERR_PTR(err);
+-}
+-
+-void aead_key_free(struct crypto_aead *tfm)
+-{
+-	crypto_free_aead(tfm);
+-}
+--- a/net/mac80211/aead_api.h
++++ /dev/null
+@@ -1,23 +0,0 @@
+-/* SPDX-License-Identifier: GPL-2.0-only */
+-
+-#ifndef _AEAD_API_H
+-#define _AEAD_API_H
+-
+-#include <crypto/aead.h>
+-#include <linux/crypto.h>
+-
+-struct crypto_aead *
+-aead_key_setup_encrypt(const char *alg, const u8 key[],
+-		       size_t key_len, size_t mic_len);
+-
+-int aead_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
+-		 size_t aad_len, u8 *data,
+-		 size_t data_len, u8 *mic);
+-
+-int aead_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
+-		 size_t aad_len, u8 *data,
+-		 size_t data_len, u8 *mic);
+-
+-void aead_key_free(struct crypto_aead *tfm);
+-
+-#endif /* _AEAD_API_H */
+--- a/net/mac80211/aes_ccm.h
++++ b/net/mac80211/aes_ccm.h
+@@ -7,39 +7,17 @@
+ #ifndef AES_CCM_H
+ #define AES_CCM_H
+ 
+-#include "aead_api.h"
++#include <linux/crypto.h>
+ 
+-#define CCM_AAD_LEN	32
+-
+-static inline struct crypto_aead *
+-ieee80211_aes_key_setup_encrypt(const u8 key[], size_t key_len, size_t mic_len)
+-{
+-	return aead_key_setup_encrypt("ccm(aes)", key, key_len, mic_len);
+-}
+-
+-static inline int
+-ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm,
+-			  u8 *b_0, u8 *aad, u8 *data,
+-			  size_t data_len, u8 *mic)
+-{
+-	return aead_encrypt(tfm, b_0, aad + 2,
+-			    be16_to_cpup((__be16 *)aad),
+-			    data, data_len, mic);
+-}
+-
+-static inline int
+-ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm,
+-			  u8 *b_0, u8 *aad, u8 *data,
+-			  size_t data_len, u8 *mic)
+-{
+-	return aead_decrypt(tfm, b_0, aad + 2,
+-			    be16_to_cpup((__be16 *)aad),
+-			    data, data_len, mic);
+-}
+-
+-static inline void ieee80211_aes_key_free(struct crypto_aead *tfm)
+-{
+-	return aead_key_free(tfm);
+-}
++struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[],
++						      size_t key_len,
++						      size_t mic_len);
++void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
++			       u8 *data, size_t data_len, u8 *mic,
++			       size_t mic_len);
++int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
++			      u8 *data, size_t data_len, u8 *mic,
++			      size_t mic_len);
++void ieee80211_aes_key_free(struct crypto_cipher *tfm);
+ 
+ #endif /* AES_CCM_H */
+--- /dev/null
++++ b/net/mac80211/aes_gcm.c
+@@ -0,0 +1,109 @@
++/*
++ * Copyright 2014-2015, Qualcomm Atheros, Inc.
++ *
++ * 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.
++ */
++
++#include <linux/kernel.h>
++#include <linux/types.h>
++#include <linux/err.h>
++#include <crypto/aead.h>
++
++#include <net/mac80211.h>
++#include "key.h"
++#include "aes_gcm.h"
++
++int ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
++			      u8 *data, size_t data_len, u8 *mic)
++{
++	struct scatterlist sg[3];
++	struct aead_request *aead_req;
++	int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
++	u8 *__aad;
++
++	aead_req = kzalloc(reqsize + GCM_AAD_LEN, GFP_ATOMIC);
++	if (!aead_req)
++		return -ENOMEM;
++
++	__aad = (u8 *)aead_req + reqsize;
++	memcpy(__aad, aad, GCM_AAD_LEN);
++
++	sg_init_table(sg, 3);
++	sg_set_buf(&sg[0], &__aad[2], be16_to_cpup((__be16 *)__aad));
++	sg_set_buf(&sg[1], data, data_len);
++	sg_set_buf(&sg[2], mic, IEEE80211_GCMP_MIC_LEN);
++
++	aead_request_set_tfm(aead_req, tfm);
++	aead_request_set_crypt(aead_req, sg, sg, data_len, j_0);
++	aead_request_set_ad(aead_req, sg[0].length);
++
++	crypto_aead_encrypt(aead_req);
++	kzfree(aead_req);
++	return 0;
++}
++
++int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
++			      u8 *data, size_t data_len, u8 *mic)
++{
++	struct scatterlist sg[3];
++	struct aead_request *aead_req;
++	int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
++	u8 *__aad;
++	int err;
++
++	if (data_len == 0)
++		return -EINVAL;
++
++	aead_req = kzalloc(reqsize + GCM_AAD_LEN, GFP_ATOMIC);
++	if (!aead_req)
++		return -ENOMEM;
++
++	__aad = (u8 *)aead_req + reqsize;
++	memcpy(__aad, aad, GCM_AAD_LEN);
++
++	sg_init_table(sg, 3);
++	sg_set_buf(&sg[0], &__aad[2], be16_to_cpup((__be16 *)__aad));
++	sg_set_buf(&sg[1], data, data_len);
++	sg_set_buf(&sg[2], mic, IEEE80211_GCMP_MIC_LEN);
++
++	aead_request_set_tfm(aead_req, tfm);
++	aead_request_set_crypt(aead_req, sg, sg,
++			       data_len + IEEE80211_GCMP_MIC_LEN, j_0);
++	aead_request_set_ad(aead_req, sg[0].length);
++
++	err = crypto_aead_decrypt(aead_req);
++	kzfree(aead_req);
++
++	return err;
++}
++
++struct crypto_aead *ieee80211_aes_gcm_key_setup_encrypt(const u8 key[],
++							size_t key_len)
++{
++	struct crypto_aead *tfm;
++	int err;
++
++	tfm = crypto_alloc_aead("gcm(aes)", 0, CRYPTO_ALG_ASYNC);
++	if (IS_ERR(tfm))
++		return tfm;
++
++	err = crypto_aead_setkey(tfm, key, key_len);
++	if (err)
++		goto free_aead;
++	err = crypto_aead_setauthsize(tfm, IEEE80211_GCMP_MIC_LEN);
++	if (err)
++		goto free_aead;
++
++	return tfm;
++
++free_aead:
++	crypto_free_aead(tfm);
++	return ERR_PTR(err);
++}
++
++void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm)
++{
++	crypto_free_aead(tfm);
++}
+--- a/net/mac80211/aes_gcm.h
++++ b/net/mac80211/aes_gcm.h
+@@ -6,38 +6,30 @@
+ #ifndef AES_GCM_H
+ #define AES_GCM_H
+ 
+-#include "aead_api.h"
++#include <linux/crypto.h>
+ 
+-#define GCM_AAD_LEN	32
+-
+-static inline int ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm,
+-					    u8 *j_0, u8 *aad,  u8 *data,
+-					    size_t data_len, u8 *mic)
++static inline void
++ieee80211_aes_gcm_encrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
++			  u8 *data, size_t data_len, u8 *mic)
+ {
+-	return aead_encrypt(tfm, j_0, aad + 2,
+-			    be16_to_cpup((__be16 *)aad),
+-			    data, data_len, mic);
+ }
+ 
+-static inline int ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm,
+-					    u8 *j_0, u8 *aad, u8 *data,
+-					    size_t data_len, u8 *mic)
++static inline int
++ieee80211_aes_gcm_decrypt(struct crypto_aead *tfm, u8 *j_0, u8 *aad,
++			  u8 *data, size_t data_len, u8 *mic)
+ {
+-	return aead_decrypt(tfm, j_0, aad + 2,
+-			    be16_to_cpup((__be16 *)aad),
+-			    data, data_len, mic);
++    return -EOPNOTSUPP;
+ }
+ 
+ static inline struct crypto_aead *
+ ieee80211_aes_gcm_key_setup_encrypt(const u8 key[], size_t key_len)
+ {
+-	return aead_key_setup_encrypt("gcm(aes)", key,
+-				      key_len, IEEE80211_GCMP_MIC_LEN);
++    return NULL;
+ }
+ 
+-static inline void ieee80211_aes_gcm_key_free(struct crypto_aead *tfm)
++static inline void
++ieee80211_aes_gcm_key_free(struct crypto_aead *tfm)
+ {
+-	return aead_key_free(tfm);
+ }
+ 
+ #endif /* AES_GCM_H */
+--- a/net/mac80211/wpa.c
++++ b/net/mac80211/wpa.c
+@@ -312,7 +312,8 @@ ieee80211_crypto_tkip_decrypt(struct iee
+ }
+ 
+ 
+-static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad)
++static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *b_0, u8 *aad,
++				u16 data_len)
+ {
+ 	__le16 mask_fc;
+ 	int a4_included, mgmt;
+@@ -342,14 +343,8 @@ static void ccmp_special_blocks(struct s
+ 	else
+ 		qos_tid = 0;
+ 
+-	/* In CCM, the initial vectors (IV) used for CTR mode encryption and CBC
+-	 * mode authentication are not allowed to collide, yet both are derived
+-	 * from this vector b_0. We only set L := 1 here to indicate that the
+-	 * data size can be represented in (L+1) bytes. The CCM layer will take
+-	 * care of storing the data length in the top (L+1) bytes and setting
+-	 * and clearing the other bits as is required to derive the two IVs.
+-	 */
+-	b_0[0] = 0x1;
++	/* First block, b_0 */
++	b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
+ 
+ 	/* Nonce: Nonce Flags | A2 | PN
+ 	 * Nonce Flags: Priority (b0..b3) | Management (b4) | Reserved (b5..b7)
+@@ -357,6 +352,8 @@ static void ccmp_special_blocks(struct s
+ 	b_0[1] = qos_tid | (mgmt << 4);
+ 	memcpy(&b_0[2], hdr->addr2, ETH_ALEN);
+ 	memcpy(&b_0[8], pn, IEEE80211_CCMP_PN_LEN);
++	/* l(m) */
++	put_unaligned_be16(data_len, &b_0[14]);
+ 
+ 	/* AAD (extra authenticate-only data) / masked 802.11 header
+ 	 * FC | A1 | A2 | A3 | SC | [A4] | [QC] */
+@@ -413,7 +410,7 @@ static int ccmp_encrypt_skb(struct ieee8
+ 	u8 *pos;
+ 	u8 pn[6];
+ 	u64 pn64;
+-	u8 aad[CCM_AAD_LEN];
++	u8 aad[2 * AES_BLOCK_SIZE];
+ 	u8 b_0[AES_BLOCK_SIZE];
+ 
+ 	if (info->control.hw_key &&
+@@ -468,9 +465,11 @@ static int ccmp_encrypt_skb(struct ieee8
+ 		return 0;
+ 
+ 	pos += IEEE80211_CCMP_HDR_LEN;
+-	ccmp_special_blocks(skb, pn, b_0, aad);
+-	return ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, b_0, aad, pos, len,
+-					 skb_put(skb, mic_len));
++	ccmp_special_blocks(skb, pn, b_0, aad, len);
++	ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, b_0, aad, pos, len,
++				  skb_put(skb, mic_len), mic_len);
++
++	return 0;
+ }
+ 
+ 
+@@ -546,13 +545,13 @@ ieee80211_crypto_ccmp_decrypt(struct iee
+ 			u8 aad[2 * AES_BLOCK_SIZE];
+ 			u8 b_0[AES_BLOCK_SIZE];
+ 			/* hardware didn't decrypt/verify MIC */
+-			ccmp_special_blocks(skb, pn, b_0, aad);
++			ccmp_special_blocks(skb, pn, b_0, aad, data_len);
+ 
+ 			if (ieee80211_aes_ccm_decrypt(
+ 				    key->u.ccmp.tfm, b_0, aad,
+ 				    skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN,
+ 				    data_len,
+-				    skb->data + skb->len - mic_len))
++				    skb->data + skb->len - mic_len, mic_len))
+ 				return RX_DROP_UNUSABLE;
+ 		}
+ 
+@@ -649,7 +648,7 @@ static int gcmp_encrypt_skb(struct ieee8
+ 	u8 *pos;
+ 	u8 pn[6];
+ 	u64 pn64;
+-	u8 aad[GCM_AAD_LEN];
++	u8 aad[2 * AES_BLOCK_SIZE];
+ 	u8 j_0[AES_BLOCK_SIZE];
+ 
+ 	if (info->control.hw_key &&
+@@ -706,8 +705,10 @@ static int gcmp_encrypt_skb(struct ieee8
+ 
+ 	pos += IEEE80211_GCMP_HDR_LEN;
+ 	gcmp_special_blocks(skb, pn, j_0, aad);
+-	return ieee80211_aes_gcm_encrypt(key->u.gcmp.tfm, j_0, aad, pos, len,
+-					 skb_put(skb, IEEE80211_GCMP_MIC_LEN));
++	ieee80211_aes_gcm_encrypt(key->u.gcmp.tfm, j_0, aad, pos, len,
++				  skb_put(skb, IEEE80211_GCMP_MIC_LEN));
++
++	return 0;
+ }
+ 
+ ieee80211_tx_result
+@@ -1139,9 +1140,9 @@ ieee80211_crypto_aes_gmac_encrypt(struct
+ 	struct ieee80211_key *key = tx->key;
+ 	struct ieee80211_mmie_16 *mmie;
+ 	struct ieee80211_hdr *hdr;
+-	u8 aad[GMAC_AAD_LEN];
++	u8 aad[20];
+ 	u64 pn64;
+-	u8 nonce[GMAC_NONCE_LEN];
++	u8 nonce[12];
+ 
+ 	if (WARN_ON(skb_queue_len(&tx->skbs) != 1))
+ 		return TX_DROP;
+@@ -1187,7 +1188,7 @@ ieee80211_crypto_aes_gmac_decrypt(struct
+ 	struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ 	struct ieee80211_key *key = rx->key;
+ 	struct ieee80211_mmie_16 *mmie;
+-	u8 aad[GMAC_AAD_LEN], *mic, ipn[6], nonce[GMAC_NONCE_LEN];
++	u8 aad[20], *mic, ipn[6], nonce[12];
+ 	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+ 
+ 	if (!ieee80211_is_mgmt(hdr->frame_control))
+--- /dev/null
++++ b/net/mac80211/aes_ccm.c
+@@ -0,0 +1,144 @@
++/*
++ * Copyright 2003-2004, Instant802 Networks, Inc.
++ * Copyright 2005-2006, Devicescape Software, Inc.
++ *
++ * Rewrite: Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
++ *
++ * 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.
++ */
++
++#include <linux/kernel.h>
++#include <linux/types.h>
++#include <linux/err.h>
++#include <crypto/aead.h>
++#include <crypto/aes.h>
++
++#include <net/mac80211.h>
++#include "key.h"
++#include "aes_ccm.h"
++
++static void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *b_0, u8 *aad, u8 *s_0,
++			    u8 *a, u8 *b)
++{
++	int i;
++
++	crypto_cipher_encrypt_one(tfm, b, b_0);
++
++	/* Extra Authenticate-only data (always two AES blocks) */
++	for (i = 0; i < AES_BLOCK_SIZE; i++)
++		aad[i] ^= b[i];
++	crypto_cipher_encrypt_one(tfm, b, aad);
++
++	aad += AES_BLOCK_SIZE;
++
++	for (i = 0; i < AES_BLOCK_SIZE; i++)
++		aad[i] ^= b[i];
++	crypto_cipher_encrypt_one(tfm, a, aad);
++
++	/* Mask out bits from auth-only-b_0 */
++	b_0[0] &= 0x07;
++
++	/* S_0 is used to encrypt T (= MIC) */
++	b_0[14] = 0;
++	b_0[15] = 0;
++	crypto_cipher_encrypt_one(tfm, s_0, b_0);
++}
++
++
++void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
++			       u8 *data, size_t data_len, u8 *mic,
++			       size_t mic_len)
++{
++	int i, j, last_len, num_blocks;
++	u8 b[AES_BLOCK_SIZE];
++	u8 s_0[AES_BLOCK_SIZE];
++	u8 e[AES_BLOCK_SIZE];
++	u8 *pos, *cpos;
++
++	num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
++	last_len = data_len % AES_BLOCK_SIZE;
++	aes_ccm_prepare(tfm, b_0, aad, s_0, b, b);
++
++	/* Process payload blocks */
++	pos = data;
++	cpos = data;
++	for (j = 1; j <= num_blocks; j++) {
++		int blen = (j == num_blocks && last_len) ?
++			last_len : AES_BLOCK_SIZE;
++
++		/* Authentication followed by encryption */
++		for (i = 0; i < blen; i++)
++			b[i] ^= pos[i];
++		crypto_cipher_encrypt_one(tfm, b, b);
++
++		b_0[14] = (j >> 8) & 0xff;
++		b_0[15] = j & 0xff;
++		crypto_cipher_encrypt_one(tfm, e, b_0);
++		for (i = 0; i < blen; i++)
++			*cpos++ = *pos++ ^ e[i];
++	}
++
++	for (i = 0; i < mic_len; i++)
++		mic[i] = b[i] ^ s_0[i];
++}
++
++int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *b_0, u8 *aad,
++			      u8 *data, size_t data_len, u8 *mic,
++			      size_t mic_len)
++{
++	int i, j, last_len, num_blocks;
++	u8 *pos, *cpos;
++	u8 a[AES_BLOCK_SIZE];
++	u8 b[AES_BLOCK_SIZE];
++	u8 s_0[AES_BLOCK_SIZE];
++
++	num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
++	last_len = data_len % AES_BLOCK_SIZE;
++	aes_ccm_prepare(tfm, b_0, aad, s_0, a, b);
++
++	/* Process payload blocks */
++	cpos = data;
++	pos = data;
++	for (j = 1; j <= num_blocks; j++) {
++		int blen = (j == num_blocks && last_len) ?
++			last_len : AES_BLOCK_SIZE;
++
++		/* Decryption followed by authentication */
++		b_0[14] = (j >> 8) & 0xff;
++		b_0[15] = j & 0xff;
++		crypto_cipher_encrypt_one(tfm, b, b_0);
++		for (i = 0; i < blen; i++) {
++			*pos = *cpos++ ^ b[i];
++			a[i] ^= *pos++;
++		}
++		crypto_cipher_encrypt_one(tfm, a, a);
++	}
++
++	for (i = 0; i < mic_len; i++) {
++		if ((mic[i] ^ s_0[i]) != a[i])
++			return -1;
++	}
++
++	return 0;
++}
++
++struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[],
++						      size_t key_len,
++						      size_t mic_len)
++{
++	struct crypto_cipher *tfm;
++
++	tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
++	if (!IS_ERR(tfm))
++		crypto_cipher_setkey(tfm, key, key_len);
++
++	return tfm;
++}
++
++
++void ieee80211_aes_key_free(struct crypto_cipher *tfm)
++{
++	crypto_free_cipher(tfm);
++}
+--- a/net/mac80211/Kconfig
++++ b/net/mac80211/Kconfig
+@@ -6,8 +6,6 @@ config MAC80211
+ 	depends on CRYPTO
+ 	select BPAUTO_CRYPTO_LIB_ARC4
+ 	depends on CRYPTO_AES
+-	depends on CRYPTO_CCM
+-	depends on CRYPTO_GCM
+ 	depends on CRYPTO_CMAC
+ 	depends on CRC32
+ 	help
+--- a/net/mac80211/aes_gmac.h
++++ b/net/mac80211/aes_gmac.h
+@@ -12,10 +12,22 @@
+ #define GMAC_MIC_LEN	16
+ #define GMAC_NONCE_LEN	12
+ 
+-struct crypto_aead *ieee80211_aes_gmac_key_setup(const u8 key[],
+-						 size_t key_len);
+-int ieee80211_aes_gmac(struct crypto_aead *tfm, const u8 *aad, u8 *nonce,
+-		       const u8 *data, size_t data_len, u8 *mic);
+-void ieee80211_aes_gmac_key_free(struct crypto_aead *tfm);
++static inline struct crypto_aead *
++ieee80211_aes_gmac_key_setup(const u8 key[], size_t key_len)
++{
++	return NULL;
++}
++
++static inline int
++ieee80211_aes_gmac(struct crypto_aead *tfm, const u8 *aad, u8 *nonce,
++		   const u8 *data, size_t data_len, u8 *mic)
++{
++	return -EOPNOTSUPP;
++}
++
++static inline void
++ieee80211_aes_gmac_key_free(struct crypto_aead *tfm)
++{
++}
+ 
+ #endif /* AES_GMAC_H */
+--- a/net/mac80211/key.h
++++ b/net/mac80211/key.h
+@@ -89,7 +89,7 @@ struct ieee80211_key {
+ 			 * Management frames.
+ 			 */
+ 			u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_CCMP_PN_LEN];
+-			struct crypto_aead *tfm;
++			struct crypto_cipher *tfm;
+ 			u32 replays; /* dot11RSNAStatsCCMPReplays */
+ 		} ccmp;
+ 		struct {