mac80211: refresh patches

Signed-off-by: Mathias Kresin <dev@kresin.me>
Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>

1 files changed, 48 insertions, 42 deletions

diff --git a/package/kernel/mac80211/patches/100-remove-cryptoapi-dependencies.patch b/package/kernel/mac80211/patches/100-remove-cryptoapi-dependencies.patch
index b65b0bd..fbe22e5 100644
--- a/package/kernel/mac80211/patches/100-remove-cryptoapi-dependencies.patch
+++ b/package/kernel/mac80211/patches/100-remove-cryptoapi-dependencies.patch
@@ -34,9 +34,12 @@
  #include "aes_ccm.h"
  
 -void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
+-			       u8 *data, size_t data_len, u8 *mic,
+-			       size_t mic_len)
 +static void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *b_0, u8 *aad, u8 *s_0,
 +			    u8 *a, u8 *b)
-+{
+ {
+-	struct scatterlist sg[3];
 +	int i;
 +
 +	crypto_cipher_encrypt_one(tfm, b, b_0);
@@ -51,56 +54,55 @@
 +	for (i = 0; i < AES_BLOCK_SIZE; i++)
 +		aad[i] ^= b[i];
 +	crypto_cipher_encrypt_one(tfm, a, aad);
-+
+ 
+-	char aead_req_data[sizeof(struct aead_request) +
+-			   crypto_aead_reqsize(tfm)]
+-		__aligned(__alignof__(struct aead_request));
+-	struct aead_request *aead_req = (void *) aead_req_data;
 +	/* Mask out bits from auth-only-b_0 */
 +	b_0[0] &= 0x07;
-+
+ 
+-	memset(aead_req, 0, sizeof(aead_req_data));
 +	/* 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);
 +}
-+
-+
+ 
+-	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, 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);
 +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)
- {
--	struct scatterlist sg[3];
++			       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;
- 
--	char aead_req_data[sizeof(struct aead_request) +
--			   crypto_aead_reqsize(tfm)]
--		__aligned(__alignof__(struct aead_request));
--	struct aead_request *aead_req = (void *) aead_req_data;
++
 +	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);
- 
--	memset(aead_req, 0, sizeof(aead_req_data));
++
 +	/* 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;
- 
--	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, mic_len);
++
 +		/* Authentication followed by encryption */
 +		for (i = 0; i < blen; i++)
 +			b[i] ^= pos[i];
 +		crypto_cipher_encrypt_one(tfm, b, b);
- 
--	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);
++
 +		b_0[14] = (j >> 8) & 0xff;
 +		b_0[15] = j & 0xff;
 +		crypto_cipher_encrypt_one(tfm, e, b_0);
@@ -123,30 +125,37 @@
 -			   crypto_aead_reqsize(tfm)]
 -		__aligned(__alignof__(struct aead_request));
 -	struct aead_request *aead_req = (void *) aead_req_data;
+-
+-	if (data_len == 0)
+-		return -EINVAL;
+-
+-	memset(aead_req, 0, sizeof(aead_req_data));
+-
+-	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, 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);
 +	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];
- 
--	if (data_len == 0)
--		return -EINVAL;
++
 +	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);
- 
--	memset(aead_req, 0, sizeof(aead_req_data));
++
 +	/* 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;
- 
--	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, mic_len);
++
 +		/* Decryption followed by authentication */
 +		b_0[14] = (j >> 8) & 0xff;
 +		b_0[15] = j & 0xff;
@@ -157,10 +166,7 @@
 +		}
 +		crypto_cipher_encrypt_one(tfm, a, a);
 +	}
- 
--	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);
++
 +	for (i = 0; i < mic_len; i++) {
 +		if ((mic[i] ^ s_0[i]) != a[i])
 +			return -1;
@@ -179,12 +185,12 @@
  {
 -	struct crypto_aead *tfm;
 -	int err;
--
++	struct crypto_cipher *tfm;
+ 
 -	tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC);
 -	if (IS_ERR(tfm))
 -		return tfm;
-+	struct crypto_cipher *tfm;
- 
+-
 -	err = crypto_aead_setkey(tfm, key, key_len);
 -	if (err)
 -		goto free_aead;