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-rw-r--r--include/crypto/hash.h104
1 files changed, 104 insertions, 0 deletions
diff --git a/include/crypto/hash.h b/include/crypto/hash.h
index ee48ef8fb2ea..f9b51d408953 100644
--- a/include/crypto/hash.h
+++ b/include/crypto/hash.h
@@ -15,10 +15,39 @@
#include <linux/crypto.h>
+struct shash_desc {
+ struct crypto_shash *tfm;
+ u32 flags;
+
+ void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+struct shash_alg {
+ int (*init)(struct shash_desc *desc);
+ int (*update)(struct shash_desc *desc, const u8 *data,
+ unsigned int len);
+ int (*final)(struct shash_desc *desc, u8 *out);
+ int (*finup)(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out);
+ int (*digest)(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out);
+ int (*setkey)(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen);
+
+ unsigned int descsize;
+ unsigned int digestsize;
+
+ struct crypto_alg base;
+};
+
struct crypto_ahash {
struct crypto_tfm base;
};
+struct crypto_shash {
+ struct crypto_tfm base;
+};
+
static inline struct crypto_ahash *__crypto_ahash_cast(struct crypto_tfm *tfm)
{
return (struct crypto_ahash *)tfm;
@@ -169,4 +198,79 @@ static inline void ahash_request_set_crypt(struct ahash_request *req,
req->result = result;
}
+struct crypto_shash *crypto_alloc_shash(const char *alg_name, u32 type,
+ u32 mask);
+
+static inline struct crypto_tfm *crypto_shash_tfm(struct crypto_shash *tfm)
+{
+ return &tfm->base;
+}
+
+static inline void crypto_free_shash(struct crypto_shash *tfm)
+{
+ crypto_free_tfm(crypto_shash_tfm(tfm));
+}
+
+static inline unsigned int crypto_shash_alignmask(
+ struct crypto_shash *tfm)
+{
+ return crypto_tfm_alg_alignmask(crypto_shash_tfm(tfm));
+}
+
+static inline struct shash_alg *__crypto_shash_alg(struct crypto_alg *alg)
+{
+ return container_of(alg, struct shash_alg, base);
+}
+
+static inline struct shash_alg *crypto_shash_alg(struct crypto_shash *tfm)
+{
+ return __crypto_shash_alg(crypto_shash_tfm(tfm)->__crt_alg);
+}
+
+static inline unsigned int crypto_shash_digestsize(struct crypto_shash *tfm)
+{
+ return crypto_shash_alg(tfm)->digestsize;
+}
+
+static inline u32 crypto_shash_get_flags(struct crypto_shash *tfm)
+{
+ return crypto_tfm_get_flags(crypto_shash_tfm(tfm));
+}
+
+static inline void crypto_shash_set_flags(struct crypto_shash *tfm, u32 flags)
+{
+ crypto_tfm_set_flags(crypto_shash_tfm(tfm), flags);
+}
+
+static inline void crypto_shash_clear_flags(struct crypto_shash *tfm, u32 flags)
+{
+ crypto_tfm_clear_flags(crypto_shash_tfm(tfm), flags);
+}
+
+static inline unsigned int crypto_shash_descsize(struct crypto_shash *tfm)
+{
+ return crypto_shash_alg(tfm)->descsize;
+}
+
+static inline void *shash_desc_ctx(struct shash_desc *desc)
+{
+ return desc->__ctx;
+}
+
+int crypto_shash_setkey(struct crypto_shash *tfm, const u8 *key,
+ unsigned int keylen);
+int crypto_shash_digest(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out);
+
+static inline int crypto_shash_init(struct shash_desc *desc)
+{
+ return crypto_shash_alg(desc->tfm)->init(desc);
+}
+
+int crypto_shash_update(struct shash_desc *desc, const u8 *data,
+ unsigned int len);
+int crypto_shash_final(struct shash_desc *desc, u8 *out);
+int crypto_shash_finup(struct shash_desc *desc, const u8 *data,
+ unsigned int len, u8 *out);
+
#endif /* _CRYPTO_HASH_H */