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authorHerbert Xu <herbert@gondor.apana.org.au>2009-07-14 12:28:26 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2009-07-14 15:54:07 +0800
commit88056ec346ccf41f63dbc7080b24b5fd19d1358d (patch)
treeb78a82cbce49183e587ab8a1a5a5922611468361 /include
parentcrypto: api - Remove frontend argument from extsize/init_tfm (diff)
downloadlinux-dev-88056ec346ccf41f63dbc7080b24b5fd19d1358d.tar.xz
linux-dev-88056ec346ccf41f63dbc7080b24b5fd19d1358d.zip
crypto: ahash - Convert to new style algorithms
This patch converts crypto_ahash to the new style. The old ahash algorithm type is retained until the existing ahash implementations are also converted. All ahash users will automatically get the new crypto_ahash type. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'include')
-rw-r--r--include/crypto/hash.h109
-rw-r--r--include/crypto/internal/hash.h11
-rw-r--r--include/linux/crypto.h29
3 files changed, 89 insertions, 60 deletions
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index fcc02d978231..262861d8f0cb 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -15,6 +15,39 @@
#include <linux/crypto.h>
+struct crypto_ahash;
+
+struct hash_alg_common {
+ unsigned int digestsize;
+ unsigned int statesize;
+
+ struct crypto_alg base;
+};
+
+struct ahash_request {
+ struct crypto_async_request base;
+
+ unsigned int nbytes;
+ struct scatterlist *src;
+ u8 *result;
+
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+struct ahash_alg {
+ int (*init)(struct ahash_request *req);
+ int (*update)(struct ahash_request *req);
+ int (*final)(struct ahash_request *req);
+ int (*finup)(struct ahash_request *req);
+ int (*digest)(struct ahash_request *req);
+ int (*export)(struct ahash_request *req, void *out);
+ int (*import)(struct ahash_request *req, const void *in);
+ int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen);
+
+ struct hash_alg_common halg;
+};
+
struct shash_desc {
struct crypto_shash *tfm;
u32 flags;
@@ -37,6 +70,8 @@ struct shash_alg {
unsigned int keylen);
unsigned int descsize;
+
+ /* These fields must match hash_alg_common. */
unsigned int digestsize;
unsigned int statesize;
@@ -44,6 +79,18 @@ struct shash_alg {
};
struct crypto_ahash {
+ int (*init)(struct ahash_request *req);
+ int (*update)(struct ahash_request *req);
+ int (*final)(struct ahash_request *req);
+ int (*finup)(struct ahash_request *req);
+ int (*digest)(struct ahash_request *req);
+ int (*export)(struct ahash_request *req, void *out);
+ int (*import)(struct ahash_request *req, const void *in);
+ int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen);
+
+ unsigned int digestsize;
+ unsigned int reqsize;
struct crypto_tfm base;
};
@@ -54,19 +101,11 @@ struct crypto_shash {
static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm)
{
- return (struct crypto_ahash *)tfm;
+ return container_of(tfm, struct crypto_ahash, base);
}
-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));
-}
+struct crypto_ahash *crypto_alloc_ahash(const char *alg_name, u32 type,
+ u32 mask);
static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm)
{
@@ -75,7 +114,7 @@ static inline struct crypto_tfm *crypto_ahash_tfm(struct crypto_ahash *tfm)
static inline void crypto_free_ahash(struct crypto_ahash *tfm)
{
- crypto_free_tfm(crypto_ahash_tfm(tfm));
+ crypto_destroy_tfm(tfm, crypto_ahash_tfm(tfm));
}
static inline unsigned int crypto_ahash_alignmask(
@@ -84,14 +123,26 @@ static inline unsigned int crypto_ahash_alignmask(
return crypto_tfm_alg_alignmask(crypto_ahash_tfm(tfm));
}
-static inline struct ahash_tfm *crypto_ahash_crt(struct crypto_ahash *tfm)
+static inline struct hash_alg_common *__crypto_hash_alg_common(
+ struct crypto_alg *alg)
{
- return &crypto_ahash_tfm(tfm)->crt_ahash;
+ return container_of(alg, struct hash_alg_common, base);
+}
+
+static inline struct hash_alg_common *crypto_hash_alg_common(
+ struct crypto_ahash *tfm)
+{
+ return __crypto_hash_alg_common(crypto_ahash_tfm(tfm)->__crt_alg);
}
static inline unsigned int crypto_ahash_digestsize(struct crypto_ahash *tfm)
{
- return crypto_ahash_crt(tfm)->digestsize;
+ return tfm->digestsize;
+}
+
+static inline unsigned int crypto_ahash_statesize(struct crypto_ahash *tfm)
+{
+ return crypto_hash_alg_common(tfm)->statesize;
}
static inline u32 crypto_ahash_get_flags(struct crypto_ahash *tfm)
@@ -117,7 +168,7 @@ static inline struct crypto_ahash *crypto_ahash_reqtfm(
static inline unsigned int crypto_ahash_reqsize(struct crypto_ahash *tfm)
{
- return crypto_ahash_crt(tfm)->reqsize;
+ return tfm->reqsize;
}
static inline void *ahash_request_ctx(struct ahash_request *req)
@@ -128,41 +179,37 @@ static inline void *ahash_request_ctx(struct ahash_request *req)
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);
+ return tfm->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);
+ return crypto_ahash_reqtfm(req)->digest(req);
}
-static inline void crypto_ahash_export(struct ahash_request *req, u8 *out)
+static inline int crypto_ahash_export(struct ahash_request *req, void *out)
{
- memcpy(out, ahash_request_ctx(req),
- crypto_ahash_reqsize(crypto_ahash_reqtfm(req)));
+ return crypto_ahash_reqtfm(req)->export(req, out);
}
-int crypto_ahash_import(struct ahash_request *req, const u8 *in);
+static inline int crypto_ahash_import(struct ahash_request *req, const void *in)
+{
+ return crypto_ahash_reqtfm(req)->import(req, in);
+}
static inline int crypto_ahash_init(struct ahash_request *req)
{
- struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req));
- return crt->init(req);
+ return crypto_ahash_reqtfm(req)->init(req);
}
static inline int crypto_ahash_update(struct ahash_request *req)
{
- struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req));
- return crt->update(req);
+ return crypto_ahash_reqtfm(req)->update(req);
}
static inline int crypto_ahash_final(struct ahash_request *req)
{
- struct ahash_tfm *crt = crypto_ahash_crt(crypto_ahash_reqtfm(req));
- return crt->final(req);
+ return crypto_ahash_reqtfm(req)->final(req);
}
static inline void ahash_request_set_tfm(struct ahash_request *req,
diff --git a/include/crypto/internal/hash.h b/include/crypto/internal/hash.h
index 5e45818f3351..08bdffafefad 100644
--- a/include/crypto/internal/hash.h
+++ b/include/crypto/internal/hash.h
@@ -51,6 +51,9 @@ int crypto_hash_walk_first_compat(struct hash_desc *hdesc,
struct crypto_hash_walk *walk,
struct scatterlist *sg, unsigned int len);
+int crypto_register_ahash(struct ahash_alg *alg);
+int crypto_unregister_ahash(struct ahash_alg *alg);
+
int crypto_register_shash(struct shash_alg *alg);
int crypto_unregister_shash(struct shash_alg *alg);
int shash_register_instance(struct crypto_template *tmpl,
@@ -66,12 +69,14 @@ struct shash_alg *shash_attr_alg(struct rtattr *rta, u32 type, u32 mask);
int shash_ahash_update(struct ahash_request *req, struct shash_desc *desc);
int shash_ahash_digest(struct ahash_request *req, struct shash_desc *desc);
+int crypto_init_shash_ops_async(struct crypto_tfm *tfm);
+
static inline void *crypto_ahash_ctx(struct crypto_ahash *tfm)
{
- return crypto_tfm_ctx(&tfm->base);
+ return crypto_tfm_ctx(crypto_ahash_tfm(tfm));
}
-static inline struct ahash_alg *crypto_ahash_alg(
+static inline struct old_ahash_alg *crypto_old_ahash_alg(
struct crypto_ahash *tfm)
{
return &crypto_ahash_tfm(tfm)->__crt_alg->cra_ahash;
@@ -80,7 +85,7 @@ static inline struct ahash_alg *crypto_ahash_alg(
static inline void crypto_ahash_set_reqsize(struct crypto_ahash *tfm,
unsigned int reqsize)
{
- crypto_ahash_crt(tfm)->reqsize = reqsize;
+ tfm->reqsize = reqsize;
}
static inline int ahash_enqueue_request(struct crypto_queue *queue,
diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 274f9c7da90c..9e7e9b62a3dc 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -120,6 +120,7 @@ struct crypto_rng;
struct crypto_tfm;
struct crypto_type;
struct aead_givcrypt_request;
+struct ahash_request;
struct skcipher_givcrypt_request;
typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);
@@ -146,16 +147,6 @@ struct ablkcipher_request {
void *__ctx[] CRYPTO_MINALIGN_ATTR;
};
-struct ahash_request {
- struct crypto_async_request base;
-
- unsigned int nbytes;
- struct scatterlist *src;
- u8 *result;
-
- void *__ctx[] CRYPTO_MINALIGN_ATTR;
-};
-
/**
* struct aead_request - AEAD request
* @base: Common attributes for async crypto requests
@@ -220,7 +211,7 @@ struct ablkcipher_alg {
unsigned int ivsize;
};
-struct ahash_alg {
+struct old_ahash_alg {
int (*init)(struct ahash_request *req);
int (*reinit)(struct ahash_request *req);
int (*update)(struct ahash_request *req);
@@ -346,7 +337,7 @@ struct crypto_alg {
struct cipher_alg cipher;
struct digest_alg digest;
struct hash_alg hash;
- struct ahash_alg ahash;
+ struct old_ahash_alg ahash;
struct compress_alg compress;
struct rng_alg rng;
} cra_u;
@@ -433,18 +424,6 @@ struct hash_tfm {
unsigned int digestsize;
};
-struct ahash_tfm {
- int (*init)(struct ahash_request *req);
- int (*update)(struct ahash_request *req);
- int (*final)(struct ahash_request *req);
- int (*digest)(struct ahash_request *req);
- int (*setkey)(struct crypto_ahash *tfm, const u8 *key,
- unsigned int keylen);
-
- unsigned int digestsize;
- unsigned int reqsize;
-};
-
struct compress_tfm {
int (*cot_compress)(struct crypto_tfm *tfm,
const u8 *src, unsigned int slen,
@@ -465,7 +444,6 @@ struct rng_tfm {
#define crt_blkcipher crt_u.blkcipher
#define crt_cipher crt_u.cipher
#define crt_hash crt_u.hash
-#define crt_ahash crt_u.ahash
#define crt_compress crt_u.compress
#define crt_rng crt_u.rng
@@ -479,7 +457,6 @@ struct crypto_tfm {
struct blkcipher_tfm blkcipher;
struct cipher_tfm cipher;
struct hash_tfm hash;
- struct ahash_tfm ahash;
struct compress_tfm compress;
struct rng_tfm rng;
} crt_u;