mac80211: update to wireless-testing 2017-10-06

Rework the code to get rid of some extra kernel module dependencies
introduced in the last update.

Signed-off-by: Felix Fietkau <nbd@nbd.name>

1 files changed, 58 insertions, 66 deletions

diff --git a/package/kernel/mac80211/patches/100-remove-cryptoapi-dependencies.patch b/package/kernel/mac80211/patches/100-remove-cryptoapi-dependencies.patch
index 263be3e209..0febc57b3f 100644
--- a/package/kernel/mac80211/patches/100-remove-cryptoapi-dependencies.patch
+++ b/package/kernel/mac80211/patches/100-remove-cryptoapi-dependencies.patch
@@ -43,122 +43,118 @@
 -	struct aead_request *aead_req;
 -	int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
 -	u8 *__aad;
--
++	int i;
+ 
 -	aead_req = kzalloc(reqsize + CCM_AAD_LEN, GFP_ATOMIC);
 -	if (!aead_req)
 -		return -ENOMEM;
--
++	crypto_cipher_encrypt_one(tfm, b, b_0);
+ 
 -	__aad = (u8 *)aead_req + reqsize;
 -	memcpy(__aad, aad, CCM_AAD_LEN);
--
++	/* 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);
+ 
 -	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);
--
++	aad += AES_BLOCK_SIZE;
+ 
 -	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);
-+	int i;
- 
--	crypto_aead_encrypt(aead_req);
--	kzfree(aead_req);
-+	crypto_cipher_encrypt_one(tfm, b, b_0);
- 
--	return 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);
-+
+ 
+-	crypto_aead_encrypt(aead_req);
+-	kzfree(aead_req);
 +	/* Mask out bits from auth-only-b_0 */
 +	b_0[0] &= 0x07;
-+
+ 
+-	return 0;
 +	/* 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);
-+}
-+
+ }
+ 
+-int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
+-			      u8 *data, size_t data_len, u8 *mic,
+-			      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)
-+{
+ {
+-	struct scatterlist sg[3];
+-	struct aead_request *aead_req;
+-	int reqsize = sizeof(*aead_req) + crypto_aead_reqsize(tfm);
+-	u8 *__aad;
+-	int err;
 +	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;
-+
+ 
+-	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, b, b);
-+
+ 
+-	aead_req = kzalloc(reqsize + CCM_AAD_LEN, GFP_ATOMIC);
+-	if (!aead_req)
+-		return -ENOMEM;
 +	/* 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;
-+
+ 
+-	__aad = (u8 *)aead_req + reqsize;
+-	memcpy(__aad, aad, CCM_AAD_LEN);
 +		/* Authentication followed by encryption */
 +		for (i = 0; i < blen; i++)
 +			b[i] ^= pos[i];
 +		crypto_cipher_encrypt_one(tfm, b, b);
-+
+ 
+-	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);
 +		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_aead *tfm, u8 *b_0, u8 *aad,
-+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)
- {
--	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 + CCM_AAD_LEN, GFP_ATOMIC);
--	if (!aead_req)
--		return -ENOMEM;
--
--	__aad = (u8 *)aead_req + reqsize;
--	memcpy(__aad, aad, CCM_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, 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);
++	for (i = 0; i < mic_len; i++)
++		mic[i] = b[i] ^ s_0[i];
++}
+ 
+-	err = crypto_aead_decrypt(aead_req);
+-	kzfree(aead_req);
++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];
-+
+ 
+-	return err;
 +	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);
@@ -185,11 +181,7 @@
 +		if ((mic[i] ^ s_0[i]) != a[i])
 +			return -1;
 +	}
- 
--	err = crypto_aead_decrypt(aead_req);
--	kzfree(aead_req);
--
--	return err;
++
 +	return 0;
  }
  
@@ -202,12 +194,12 @@
  {
 -	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;