Linux-libre 4.4-gnupck-4.4-gnu

4 files changed, 87 insertions, 25 deletions

diff --git a/include/crypto/akcipher.h b/include/crypto/akcipher.h
index 69d163e39..45cd5b328 100644
--- a/include/crypto/akcipher.h
+++ b/include/crypto/akcipher.h
@@ -18,21 +18,21 @@
  * struct akcipher_request - public key request
  *
  * @base:	Common attributes for async crypto requests
- * @src:	Pointer to memory containing the input parameters
- *		The format of the parameter(s) is expeted to be Octet String
- * @dst:	Pointer to memory whare the result will be stored
- * @src_len:	Size of the input parameter
+ * @src:	Source data
+ * @dst:	Destination data
+ * @src_len:	Size of the input buffer
  * @dst_len:	Size of the output buffer. It needs to be at leaset
  *		as big as the expected result depending	on the operation
  *		After operation it will be updated with the acctual size of the
- *		result. In case of error, where the dst_len was insufficient,
+ *		result.
+ *		In case of error where the dst sgl size was insufficient,
  *		it will be updated to the size required for the operation.
  * @__ctx:	Start of private context data
  */
 struct akcipher_request {
 	struct crypto_async_request base;
-	void *src;
-	void *dst;
+	struct scatterlist *src;
+	struct scatterlist *dst;
 	unsigned int src_len;
 	unsigned int dst_len;
 	void *__ctx[] CRYPTO_MINALIGN_ATTR;
@@ -67,8 +67,13 @@ struct crypto_akcipher {
  *		algorithm. In case of error, where the dst_len was insufficient,
  *		the req->dst_len will be updated to the size required for the
  *		operation
- * @setkey:	Function invokes the algorithm specific set key function, which
- *		knows how to decode and interpret the BER encoded key
+ * @set_pub_key: Function invokes the algorithm specific set public key
+ *		function, which knows how to decode and interpret
+ *		the BER encoded public key
+ * @set_priv_key: Function invokes the algorithm specific set private key
+ *		function, which knows how to decode and interpret
+ *		the BER encoded private key
+ * @max_size:	Function returns dest buffer size reqired for a given key.
  * @init:	Initialize the cryptographic transformation object.
  *		This function is used to initialize the cryptographic
  *		transformation object. This function is called only once at
@@ -89,8 +94,11 @@ struct akcipher_alg {
 	int (*verify)(struct akcipher_request *req);
 	int (*encrypt)(struct akcipher_request *req);
 	int (*decrypt)(struct akcipher_request *req);
-	int (*setkey)(struct crypto_akcipher *tfm, const void *key,
-		      unsigned int keylen);
+	int (*set_pub_key)(struct crypto_akcipher *tfm, const void *key,
+			   unsigned int keylen);
+	int (*set_priv_key)(struct crypto_akcipher *tfm, const void *key,
+			    unsigned int keylen);
+	int (*max_size)(struct crypto_akcipher *tfm);
 	int (*init)(struct crypto_akcipher *tfm);
 	void (*exit)(struct crypto_akcipher *tfm);
 
@@ -229,14 +237,14 @@ static inline void akcipher_request_set_callback(struct akcipher_request *req,
  * Sets parameters required by crypto operation
  *
  * @req:	public key request
- * @src:	ptr to input parameter
- * @dst:	ptr of output parameter
- * @src_len:	size of the input buffer
- * @dst_len:	size of the output buffer. It will be updated by the
- *		implementation to reflect the acctual size of the result
+ * @src:	ptr to input scatter list
+ * @dst:	ptr to output scatter list
+ * @src_len:	size of the src input scatter list to be processed
+ * @dst_len:	size of the dst output scatter list
  */
 static inline void akcipher_request_set_crypt(struct akcipher_request *req,
-					      void *src, void *dst,
+					      struct scatterlist *src,
+					      struct scatterlist *dst,
 					      unsigned int src_len,
 					      unsigned int dst_len)
 {
@@ -247,6 +255,22 @@ static inline void akcipher_request_set_crypt(struct akcipher_request *req,
 }
 
 /**
+ * crypto_akcipher_maxsize() -- Get len for output buffer
+ *
+ * Function returns the dest buffer size required for a given key
+ *
+ * @tfm:	AKCIPHER tfm handle allocated with crypto_alloc_akcipher()
+ *
+ * Return: minimum len for output buffer or error code in key hasn't been set
+ */
+static inline int crypto_akcipher_maxsize(struct crypto_akcipher *tfm)
+{
+	struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
+
+	return alg->max_size(tfm);
+}
+
+/**
  * crypto_akcipher_encrypt() -- Invoke public key encrypt operation
  *
  * Function invokes the specific public key encrypt operation for a given
@@ -319,22 +343,44 @@ static inline int crypto_akcipher_verify(struct akcipher_request *req)
 }
 
 /**
- * crypto_akcipher_setkey() -- Invoke public key setkey operation
+ * crypto_akcipher_set_pub_key() -- Invoke set public key operation
+ *
+ * Function invokes the algorithm specific set key function, which knows
+ * how to decode and interpret the encoded key
+ *
+ * @tfm:	tfm handle
+ * @key:	BER encoded public key
+ * @keylen:	length of the key
+ *
+ * Return: zero on success; error code in case of error
+ */
+static inline int crypto_akcipher_set_pub_key(struct crypto_akcipher *tfm,
+					      const void *key,
+					      unsigned int keylen)
+{
+	struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
+
+	return alg->set_pub_key(tfm, key, keylen);
+}
+
+/**
+ * crypto_akcipher_set_priv_key() -- Invoke set private key operation
  *
  * Function invokes the algorithm specific set key function, which knows
  * how to decode and interpret the encoded key
  *
  * @tfm:	tfm handle
- * @key:	BER encoded private or public key
+ * @key:	BER encoded private key
  * @keylen:	length of the key
  *
  * Return: zero on success; error code in case of error
  */
-static inline int crypto_akcipher_setkey(struct crypto_akcipher *tfm, void *key,
-					 unsigned int keylen)
+static inline int crypto_akcipher_set_priv_key(struct crypto_akcipher *tfm,
+					       const void *key,
+					       unsigned int keylen)
 {
 	struct akcipher_alg *alg = crypto_akcipher_alg(tfm);
 
-	return alg->setkey(tfm, key, keylen);
+	return alg->set_priv_key(tfm, key, keylen);
 }
 #endif
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index 8e920b44c..3d69c93d5 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -264,6 +264,20 @@ static inline unsigned int crypto_ahash_alignmask(
 	return crypto_tfm_alg_alignmask(crypto_ahash_tfm(tfm));
 }
 
+/**
+ * crypto_ahash_blocksize() - obtain block size for cipher
+ * @tfm: cipher handle
+ *
+ * The block size for the message digest cipher referenced with the cipher
+ * handle is returned.
+ *
+ * Return: block size of cipher
+ */
+static inline unsigned int crypto_ahash_blocksize(struct crypto_ahash *tfm)
+{
+	return crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
+}
+
 static inline struct hash_alg_common *__crypto_hash_alg_common(
 	struct crypto_alg *alg)
 {
diff --git a/include/crypto/internal/rsa.h b/include/crypto/internal/rsa.h
index a8c863654..f997e2d29 100644
--- a/include/crypto/internal/rsa.h
+++ b/include/crypto/internal/rsa.h
@@ -20,8 +20,11 @@ struct rsa_key {
 	MPI d;
 };
 
-int rsa_parse_key(struct rsa_key *rsa_key, const void *key,
-		  unsigned int key_len);
+int rsa_parse_pub_key(struct rsa_key *rsa_key, const void *key,
+		      unsigned int key_len);
+
+int rsa_parse_priv_key(struct rsa_key *rsa_key, const void *key,
+		       unsigned int key_len);
 
 void rsa_free_key(struct rsa_key *rsa_key);
 #endif
diff --git a/include/crypto/public_key.h b/include/crypto/public_key.h
index 067c242b1..cc2516df0 100644
--- a/include/crypto/public_key.h
+++ b/include/crypto/public_key.h
@@ -15,7 +15,6 @@
 #define _LINUX_PUBLIC_KEY_H
 
 #include <linux/mpi.h>
-#include <keys/asymmetric-type.h>
 #include <crypto/hash_info.h>
 
 enum pkey_algo {