3 files changed, 191 insertions, 36 deletions

diff --git a/include/crypto/algapi.h b/include/crypto/algapi.h
index fef272a8cee..60d06e784be 100644
--- a/include/crypto/algapi.h
+++ b/include/crypto/algapi.h
@@ -98,7 +98,6 @@ extern const struct crypto_type crypto_ablkcipher_type;
 extern const struct crypto_type crypto_aead_type;
 extern const struct crypto_type crypto_blkcipher_type;
 extern const struct crypto_type crypto_hash_type;
-extern const struct crypto_type crypto_ahash_type;
 
 void crypto_mod_put(struct crypto_alg *alg);
 
@@ -315,40 +314,5 @@ static inline int crypto_requires_sync(u32 type, u32 mask)
 	return (type ^ CRYPTO_ALG_ASYNC) & mask & CRYPTO_ALG_ASYNC;
 }
 
-static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
-{
-	return crypto_tfm_ctx(&tfm->base);
-}
-
-static inline struct ahash_alg *crypto_ahash_alg(
-	struct crypto_ahash *tfm)
-{
-	return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
-}
-
-static inline int ahash_enqueue_request(struct crypto_queue *queue,
-					     struct ahash_request *request)
-{
-	return crypto_enqueue_request(queue, &request->base);
-}
-
-static inline struct ahash_request *ahash_dequeue_request(
-	struct crypto_queue *queue)
-{
-	return ahash_request_cast(crypto_dequeue_request(queue));
-}
-
-static inline void *ahash_request_ctx(struct ahash_request *req)
-{
-	return req->__ctx;
-}
-
-static inline int ahash_tfm_in_queue(struct crypto_queue *queue,
-					  struct crypto_ahash *tfm)
-{
-	return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm));
-}
-
-
 #endif	/* _CRYPTO_ALGAPI_H */
 
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
new file mode 100644
index 00000000000..d12498ec8a4
--- /dev/null
+++ b/include/crypto/hash.h
@@ -0,0 +1,154 @@
+/*
+ * Hash: Hash algorithms under the crypto API
+ * 
+ * Copyright (c) 2008 Herbert Xu <herbert@gondor.apana.org.au>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option) 
+ * any later version.
+ *
+ */
+
+#ifndef _CRYPTO_HASH_H
+#define _CRYPTO_HASH_H
+
+#include <linux/crypto.h>
+
+struct crypto_ahash {
+	struct crypto_tfm base;
+};
+
+static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm)
+{
+	return (struct crypto_ahash *)tfm;
+}
+
+static inline struct crypto_ahash *crypto_alloc_ahash(const char *alg_name,
+						      u32 type, u32 mask)
+{
+	type &= ~CRYPTO_ALG_TYPE_MASK;
+	mask &= ~CRYPTO_ALG_TYPE_MASK;
+	type |= CRYPTO_ALG_TYPE_AHASH;
+	mask |= CRYPTO_ALG_TYPE_AHASH_MASK;
+
+	return __crypto_ahash_cast(crypto_alloc_base(alg_name, type, mask));
+}
+
+static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm)
+{
+	return &tfm->base;
+}
+
+static inline void crypto_free_ahash(struct crypto_ahash *tfm)
+{
+	crypto_free_tfm(crypto_ahash_tfm(tfm));
+}
+
+static inline unsigned int crypto_ahash_alignmask(
+	struct crypto_ahash *tfm)
+{
+	return crypto_tfm_alg_alignmask(crypto_ahash_tfm(tfm));
+}
+
+static inline struct ahash_tfm *crypto_ahash_crt(struct crypto_ahash *tfm)
+{
+	return &crypto_ahash_tfm(tfm)->crt_ahash;
+}
+
+static inline unsigned int crypto_ahash_digestsize(struct crypto_ahash *tfm)
+{
+	return crypto_ahash_crt(tfm)->digestsize;
+}
+
+static inline u32 crypto_ahash_get_flags(struct crypto_ahash *tfm)
+{
+	return crypto_tfm_get_flags(crypto_ahash_tfm(tfm));
+}
+
+static inline void crypto_ahash_set_flags(struct crypto_ahash *tfm, u32 flags)
+{
+	crypto_tfm_set_flags(crypto_ahash_tfm(tfm), flags);
+}
+
+static inline void crypto_ahash_clear_flags(struct crypto_ahash *tfm, u32 flags)
+{
+	crypto_tfm_clear_flags(crypto_ahash_tfm(tfm), flags);
+}
+
+static inline struct crypto_ahash *crypto_ahash_reqtfm(
+	struct ahash_request *req)
+{
+	return __crypto_ahash_cast(req->base.tfm);
+}
+
+static inline unsigned int crypto_ahash_reqsize(struct crypto_ahash *tfm)
+{
+	return crypto_ahash_crt(tfm)->reqsize;
+}
+
+static inline int crypto_ahash_setkey(struct crypto_ahash *tfm,
+				      const u8 *key, unsigned int keylen)
+{
+	struct ahash_tfm *crt = crypto_ahash_crt(tfm);
+
+	return crt->setkey(tfm, key, keylen);
+}
+
+static inline int crypto_ahash_digest(struct ahash_request *req)
+{
+	struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req));
+	return crt->digest(req);
+}
+
+static inline void ahash_request_set_tfm(struct ahash_request *req,
+					 struct crypto_ahash *tfm)
+{
+	req->base.tfm = crypto_ahash_tfm(tfm);
+}
+
+static inline struct ahash_request *ahash_request_alloc(
+	struct crypto_ahash *tfm, gfp_t gfp)
+{
+	struct ahash_request *req;
+
+	req = kmalloc(sizeof(struct ahash_request) +
+		      crypto_ahash_reqsize(tfm), gfp);
+
+	if (likely(req))
+		ahash_request_set_tfm(req, tfm);
+
+	return req;
+}
+
+static inline void ahash_request_free(struct ahash_request *req)
+{
+	kfree(req);
+}
+
+static inline struct ahash_request *ahash_request_cast(
+	struct crypto_async_request *req)
+{
+	return container_of(req, struct ahash_request, base);
+}
+
+static inline void ahash_request_set_callback(struct ahash_request *req,
+					      u32 flags,
+					      crypto_completion_t complete,
+					      void *data)
+{
+	req->base.complete = complete;
+	req->base.data = data;
+	req->base.flags = flags;
+}
+
+static inline void ahash_request_set_crypt(struct ahash_request *req,
+					   struct scatterlist *src, u8 *result,
+					   unsigned int nbytes)
+{
+	req->src = src;
+	req->nbytes = nbytes;
+	req->result = result;
+}
+
+#endif	/* _CRYPTO_HASH_H */
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index 93ac4228022..917ae57bad4 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -14,6 +14,7 @@
 #define _CRYPTO_INTERNAL_HASH_H
 
 #include <crypto/algapi.h>
+#include <crypto/hash.h>
 
 struct ahash_request;
 struct scatterlist;
@@ -33,9 +34,45 @@ struct crypto_hash_walk {
 	unsigned int flags;
 };
 
+extern const struct crypto_type crypto_ahash_type;
+
 int crypto_hash_walk_done(struct crypto_hash_walk *walk, int err);
 int crypto_hash_walk_first(struct ahash_request *req,
 			   struct crypto_hash_walk *walk);
 
+static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
+{
+	return crypto_tfm_ctx(&tfm->base);
+}
+
+static inline struct ahash_alg *crypto_ahash_alg(
+	struct crypto_ahash *tfm)
+{
+	return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
+}
+
+static inline int ahash_enqueue_request(struct crypto_queue *queue,
+					     struct ahash_request *request)
+{
+	return crypto_enqueue_request(queue, &request->base);
+}
+
+static inline struct ahash_request *ahash_dequeue_request(
+	struct crypto_queue *queue)
+{
+	return ahash_request_cast(crypto_dequeue_request(queue));
+}
+
+static inline void *ahash_request_ctx(struct ahash_request *req)
+{
+	return req->__ctx;
+}
+
+static inline int ahash_tfm_in_queue(struct crypto_queue *queue,
+					  struct crypto_ahash *tfm)
+{
+	return crypto_tfm_in_queue(queue, crypto_ahash_tfm(tfm));
+}
+
 #endif	/* _CRYPTO_INTERNAL_HASH_H */