netlink: fix NETLINK_RECV_NO_ENOBUFS in netlink_set_err()
[linux-2.6.git] / include / linux / crypto.h
index 530dc4b..24d2e30 100644 (file)
@@ -6,7 +6,7 @@
  * Copyright (c) 2005 Herbert Xu <herbert@gondor.apana.org.au>
  *
  * Portions derived from Cryptoapi, by Alexander Kjeldaas <astor@fast.no>
- * and Nettle, by Niels Möller.
+ * and Nettle, by Niels Möller.
  * 
  * 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
@@ -20,7 +20,6 @@
 #include <asm/atomic.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
-#include <linux/types.h>
 #include <linux/list.h>
 #include <linux/slab.h>
 #include <linux/string.h>
  */
 #define CRYPTO_ALG_TYPE_MASK           0x0000000f
 #define CRYPTO_ALG_TYPE_CIPHER         0x00000001
-#define CRYPTO_ALG_TYPE_DIGEST         0x00000002
-#define CRYPTO_ALG_TYPE_COMPRESS       0x00000004
+#define CRYPTO_ALG_TYPE_COMPRESS       0x00000002
+#define CRYPTO_ALG_TYPE_AEAD           0x00000003
+#define CRYPTO_ALG_TYPE_BLKCIPHER      0x00000004
+#define CRYPTO_ALG_TYPE_ABLKCIPHER     0x00000005
+#define CRYPTO_ALG_TYPE_GIVCIPHER      0x00000006
+#define CRYPTO_ALG_TYPE_DIGEST         0x00000008
+#define CRYPTO_ALG_TYPE_HASH           0x00000008
+#define CRYPTO_ALG_TYPE_SHASH          0x00000009
+#define CRYPTO_ALG_TYPE_AHASH          0x0000000a
+#define CRYPTO_ALG_TYPE_RNG            0x0000000c
+#define CRYPTO_ALG_TYPE_PCOMPRESS      0x0000000f
+
+#define CRYPTO_ALG_TYPE_HASH_MASK      0x0000000e
+#define CRYPTO_ALG_TYPE_AHASH_MASK     0x0000000c
+#define CRYPTO_ALG_TYPE_BLKCIPHER_MASK 0x0000000c
 
 #define CRYPTO_ALG_LARVAL              0x00000010
 #define CRYPTO_ALG_DEAD                        0x00000020
 #define CRYPTO_ALG_ASYNC               0x00000080
 
 /*
+ * Set this bit if and only if the algorithm requires another algorithm of
+ * the same type to handle corner cases.
+ */
+#define CRYPTO_ALG_NEED_FALLBACK       0x00000100
+
+/*
+ * This bit is set for symmetric key ciphers that have already been wrapped
+ * with a generic IV generator to prevent them from being wrapped again.
+ */
+#define CRYPTO_ALG_GENIV               0x00000200
+
+/*
+ * Set if the algorithm has passed automated run-time testing.  Note that
+ * if there is no run-time testing for a given algorithm it is considered
+ * to have passed.
+ */
+
+#define CRYPTO_ALG_TESTED              0x00000400
+
+/*
  * Transform masks and values (for crt_flags).
  */
-#define CRYPTO_TFM_MODE_MASK           0x000000ff
 #define CRYPTO_TFM_REQ_MASK            0x000fff00
 #define CRYPTO_TFM_RES_MASK            0xfff00000
 
-#define CRYPTO_TFM_MODE_ECB            0x00000001
-#define CRYPTO_TFM_MODE_CBC            0x00000002
-#define CRYPTO_TFM_MODE_CFB            0x00000004
-#define CRYPTO_TFM_MODE_CTR            0x00000008
-
 #define CRYPTO_TFM_REQ_WEAK_KEY                0x00000100
 #define CRYPTO_TFM_REQ_MAY_SLEEP       0x00000200
+#define CRYPTO_TFM_REQ_MAY_BACKLOG     0x00000400
 #define CRYPTO_TFM_RES_WEAK_KEY                0x00100000
 #define CRYPTO_TFM_RES_BAD_KEY_LEN     0x00200000
 #define CRYPTO_TFM_RES_BAD_KEY_SCHED   0x00400000
 /*
  * Miscellaneous stuff.
  */
-#define CRYPTO_UNSPEC                  0
 #define CRYPTO_MAX_ALG_NAME            64
 
-#define CRYPTO_DIR_ENCRYPT             1
-#define CRYPTO_DIR_DECRYPT             0
-
 /*
  * The macro CRYPTO_MINALIGN_ATTR (along with the void * type in the actual
  * declaration) is used to ensure that the crypto_tfm context structure is
 #define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN
 #elif defined(ARCH_SLAB_MINALIGN)
 #define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN
+#else
+#define CRYPTO_MINALIGN __alignof__(unsigned long long)
 #endif
 
-#ifdef CRYPTO_MINALIGN
 #define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))
-#else
-#define CRYPTO_MINALIGN_ATTR
-#endif
 
 struct scatterlist;
+struct crypto_ablkcipher;
+struct crypto_async_request;
+struct crypto_aead;
+struct crypto_blkcipher;
+struct crypto_hash;
+struct crypto_rng;
 struct crypto_tfm;
+struct crypto_type;
+struct aead_givcrypt_request;
+struct skcipher_givcrypt_request;
+
+typedef void (*crypto_completion_t)(struct crypto_async_request *req, int err);
+
+struct crypto_async_request {
+       struct list_head list;
+       crypto_completion_t complete;
+       void *data;
+       struct crypto_tfm *tfm;
+
+       u32 flags;
+};
+
+struct ablkcipher_request {
+       struct crypto_async_request base;
+
+       unsigned int nbytes;
+
+       void *info;
+
+       struct scatterlist *src;
+       struct scatterlist *dst;
+
+       void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+/**
+ *     struct aead_request - AEAD request
+ *     @base: Common attributes for async crypto requests
+ *     @assoclen: Length in bytes of associated data for authentication
+ *     @cryptlen: Length of data to be encrypted or decrypted
+ *     @iv: Initialisation vector
+ *     @assoc: Associated data
+ *     @src: Source data
+ *     @dst: Destination data
+ *     @__ctx: Start of private context data
+ */
+struct aead_request {
+       struct crypto_async_request base;
+
+       unsigned int assoclen;
+       unsigned int cryptlen;
+
+       u8 *iv;
+
+       struct scatterlist *assoc;
+       struct scatterlist *src;
+       struct scatterlist *dst;
+
+       void *__ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+struct blkcipher_desc {
+       struct crypto_blkcipher *tfm;
+       void *info;
+       u32 flags;
+};
 
 struct cipher_desc {
        struct crypto_tfm *tfm;
@@ -99,10 +185,62 @@ struct cipher_desc {
        void *info;
 };
 
+struct hash_desc {
+       struct crypto_hash *tfm;
+       u32 flags;
+};
+
 /*
  * Algorithms: modular crypto algorithm implementations, managed
  * via crypto_register_alg() and crypto_unregister_alg().
  */
+struct ablkcipher_alg {
+       int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
+                     unsigned int keylen);
+       int (*encrypt)(struct ablkcipher_request *req);
+       int (*decrypt)(struct ablkcipher_request *req);
+       int (*givencrypt)(struct skcipher_givcrypt_request *req);
+       int (*givdecrypt)(struct skcipher_givcrypt_request *req);
+
+       const char *geniv;
+
+       unsigned int min_keysize;
+       unsigned int max_keysize;
+       unsigned int ivsize;
+};
+
+struct aead_alg {
+       int (*setkey)(struct crypto_aead *tfm, const u8 *key,
+                     unsigned int keylen);
+       int (*setauthsize)(struct crypto_aead *tfm, unsigned int authsize);
+       int (*encrypt)(struct aead_request *req);
+       int (*decrypt)(struct aead_request *req);
+       int (*givencrypt)(struct aead_givcrypt_request *req);
+       int (*givdecrypt)(struct aead_givcrypt_request *req);
+
+       const char *geniv;
+
+       unsigned int ivsize;
+       unsigned int maxauthsize;
+};
+
+struct blkcipher_alg {
+       int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
+                     unsigned int keylen);
+       int (*encrypt)(struct blkcipher_desc *desc,
+                      struct scatterlist *dst, struct scatterlist *src,
+                      unsigned int nbytes);
+       int (*decrypt)(struct blkcipher_desc *desc,
+                      struct scatterlist *dst, struct scatterlist *src,
+                      unsigned int nbytes);
+
+       const char *geniv;
+
+       unsigned int min_keysize;
+       unsigned int max_keysize;
+       unsigned int ivsize;
+};
+
 struct cipher_alg {
        unsigned int cia_min_keysize;
        unsigned int cia_max_keysize;
@@ -110,29 +248,6 @@ struct cipher_alg {
                          unsigned int keylen);
        void (*cia_encrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
        void (*cia_decrypt)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
-
-       unsigned int (*cia_encrypt_ecb)(const struct cipher_desc *desc,
-                                       u8 *dst, const u8 *src,
-                                       unsigned int nbytes);
-       unsigned int (*cia_decrypt_ecb)(const struct cipher_desc *desc,
-                                       u8 *dst, const u8 *src,
-                                       unsigned int nbytes);
-       unsigned int (*cia_encrypt_cbc)(const struct cipher_desc *desc,
-                                       u8 *dst, const u8 *src,
-                                       unsigned int nbytes);
-       unsigned int (*cia_decrypt_cbc)(const struct cipher_desc *desc,
-                                       u8 *dst, const u8 *src,
-                                       unsigned int nbytes);
-};
-
-struct digest_alg {
-       unsigned int dia_digestsize;
-       void (*dia_init)(struct crypto_tfm *tfm);
-       void (*dia_update)(struct crypto_tfm *tfm, const u8 *data,
-                          unsigned int len);
-       void (*dia_final)(struct crypto_tfm *tfm, u8 *out);
-       int (*dia_setkey)(struct crypto_tfm *tfm, const u8 *key,
-                         unsigned int keylen);
 };
 
 struct compress_alg {
@@ -142,9 +257,21 @@ struct compress_alg {
                              unsigned int slen, u8 *dst, unsigned int *dlen);
 };
 
+struct rng_alg {
+       int (*rng_make_random)(struct crypto_rng *tfm, u8 *rdata,
+                              unsigned int dlen);
+       int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
+
+       unsigned int seedsize;
+};
+
+
+#define cra_ablkcipher cra_u.ablkcipher
+#define cra_aead       cra_u.aead
+#define cra_blkcipher  cra_u.blkcipher
 #define cra_cipher     cra_u.cipher
-#define cra_digest     cra_u.digest
 #define cra_compress   cra_u.compress
+#define cra_rng                cra_u.rng
 
 struct crypto_alg {
        struct list_head cra_list;
@@ -161,10 +288,15 @@ struct crypto_alg {
        char cra_name[CRYPTO_MAX_ALG_NAME];
        char cra_driver_name[CRYPTO_MAX_ALG_NAME];
 
+       const struct crypto_type *cra_type;
+
        union {
+               struct ablkcipher_alg ablkcipher;
+               struct aead_alg aead;
+               struct blkcipher_alg blkcipher;
                struct cipher_alg cipher;
-               struct digest_alg digest;
                struct compress_alg compress;
+               struct rng_alg rng;
        } cra_u;
 
        int (*cra_init)(struct crypto_tfm *tfm);
@@ -183,58 +315,70 @@ int crypto_unregister_alg(struct crypto_alg *alg);
 /*
  * Algorithm query interface.
  */
-#ifdef CONFIG_CRYPTO
-int crypto_alg_available(const char *name, u32 flags);
-#else
-static inline int crypto_alg_available(const char *name, u32 flags)
-{
-       return 0;
-}
-#endif
+int crypto_has_alg(const char *name, u32 type, u32 mask);
 
 /*
  * Transforms: user-instantiated objects which encapsulate algorithms
- * and core processing logic.  Managed via crypto_alloc_tfm() and
- * crypto_free_tfm(), as well as the various helpers below.
+ * and core processing logic.  Managed via crypto_alloc_*() and
+ * crypto_free_*(), as well as the various helpers below.
  */
 
+struct ablkcipher_tfm {
+       int (*setkey)(struct crypto_ablkcipher *tfm, const u8 *key,
+                     unsigned int keylen);
+       int (*encrypt)(struct ablkcipher_request *req);
+       int (*decrypt)(struct ablkcipher_request *req);
+       int (*givencrypt)(struct skcipher_givcrypt_request *req);
+       int (*givdecrypt)(struct skcipher_givcrypt_request *req);
+
+       struct crypto_ablkcipher *base;
+
+       unsigned int ivsize;
+       unsigned int reqsize;
+};
+
+struct aead_tfm {
+       int (*setkey)(struct crypto_aead *tfm, const u8 *key,
+                     unsigned int keylen);
+       int (*encrypt)(struct aead_request *req);
+       int (*decrypt)(struct aead_request *req);
+       int (*givencrypt)(struct aead_givcrypt_request *req);
+       int (*givdecrypt)(struct aead_givcrypt_request *req);
+
+       struct crypto_aead *base;
+
+       unsigned int ivsize;
+       unsigned int authsize;
+       unsigned int reqsize;
+};
+
+struct blkcipher_tfm {
+       void *iv;
+       int (*setkey)(struct crypto_tfm *tfm, const u8 *key,
+                     unsigned int keylen);
+       int (*encrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
+                      struct scatterlist *src, unsigned int nbytes);
+       int (*decrypt)(struct blkcipher_desc *desc, struct scatterlist *dst,
+                      struct scatterlist *src, unsigned int nbytes);
+};
+
 struct cipher_tfm {
-       void *cit_iv;
-       unsigned int cit_ivsize;
-       u32 cit_mode;
        int (*cit_setkey)(struct crypto_tfm *tfm,
                          const u8 *key, unsigned int keylen);
-       int (*cit_encrypt)(struct crypto_tfm *tfm,
-                          struct scatterlist *dst,
-                          struct scatterlist *src,
-                          unsigned int nbytes);
-       int (*cit_encrypt_iv)(struct crypto_tfm *tfm,
-                             struct scatterlist *dst,
-                             struct scatterlist *src,
-                             unsigned int nbytes, u8 *iv);
-       int (*cit_decrypt)(struct crypto_tfm *tfm,
-                          struct scatterlist *dst,
-                          struct scatterlist *src,
-                          unsigned int nbytes);
-       int (*cit_decrypt_iv)(struct crypto_tfm *tfm,
-                          struct scatterlist *dst,
-                          struct scatterlist *src,
-                          unsigned int nbytes, u8 *iv);
-       void (*cit_xor_block)(u8 *dst, const u8 *src);
-};
-
-struct digest_tfm {
-       void (*dit_init)(struct crypto_tfm *tfm);
-       void (*dit_update)(struct crypto_tfm *tfm,
-                          struct scatterlist *sg, unsigned int nsg);
-       void (*dit_final)(struct crypto_tfm *tfm, u8 *out);
-       void (*dit_digest)(struct crypto_tfm *tfm, struct scatterlist *sg,
-                          unsigned int nsg, u8 *out);
-       int (*dit_setkey)(struct crypto_tfm *tfm,
-                         const u8 *key, unsigned int keylen);
-#ifdef CONFIG_CRYPTO_HMAC
-       void *dit_hmac_block;
-#endif
+       void (*cit_encrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+       void (*cit_decrypt_one)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
+};
+
+struct hash_tfm {
+       int (*init)(struct hash_desc *desc);
+       int (*update)(struct hash_desc *desc,
+                     struct scatterlist *sg, unsigned int nsg);
+       int (*final)(struct hash_desc *desc, u8 *out);
+       int (*digest)(struct hash_desc *desc, struct scatterlist *sg,
+                     unsigned int nsg, u8 *out);
+       int (*setkey)(struct crypto_hash *tfm, const u8 *key,
+                     unsigned int keylen);
+       unsigned int digestsize;
 };
 
 struct compress_tfm {
@@ -246,49 +390,108 @@ struct compress_tfm {
                              u8 *dst, unsigned int *dlen);
 };
 
+struct rng_tfm {
+       int (*rng_gen_random)(struct crypto_rng *tfm, u8 *rdata,
+                             unsigned int dlen);
+       int (*rng_reset)(struct crypto_rng *tfm, u8 *seed, unsigned int slen);
+};
+
+#define crt_ablkcipher crt_u.ablkcipher
+#define crt_aead       crt_u.aead
+#define crt_blkcipher  crt_u.blkcipher
 #define crt_cipher     crt_u.cipher
-#define crt_digest     crt_u.digest
+#define crt_hash       crt_u.hash
 #define crt_compress   crt_u.compress
+#define crt_rng                crt_u.rng
 
 struct crypto_tfm {
 
        u32 crt_flags;
        
        union {
+               struct ablkcipher_tfm ablkcipher;
+               struct aead_tfm aead;
+               struct blkcipher_tfm blkcipher;
                struct cipher_tfm cipher;
-               struct digest_tfm digest;
+               struct hash_tfm hash;
                struct compress_tfm compress;
+               struct rng_tfm rng;
        } crt_u;
+
+       void (*exit)(struct crypto_tfm *tfm);
        
        struct crypto_alg *__crt_alg;
 
        void *__crt_ctx[] CRYPTO_MINALIGN_ATTR;
 };
 
+struct crypto_ablkcipher {
+       struct crypto_tfm base;
+};
+
+struct crypto_aead {
+       struct crypto_tfm base;
+};
+
+struct crypto_blkcipher {
+       struct crypto_tfm base;
+};
+
+struct crypto_cipher {
+       struct crypto_tfm base;
+};
+
+struct crypto_comp {
+       struct crypto_tfm base;
+};
+
+struct crypto_hash {
+       struct crypto_tfm base;
+};
+
+struct crypto_rng {
+       struct crypto_tfm base;
+};
+
 enum {
        CRYPTOA_UNSPEC,
        CRYPTOA_ALG,
+       CRYPTOA_TYPE,
+       CRYPTOA_U32,
+       __CRYPTOA_MAX,
 };
 
+#define CRYPTOA_MAX (__CRYPTOA_MAX - 1)
+
+/* Maximum number of (rtattr) parameters for each template. */
+#define CRYPTO_MAX_ATTRS 32
+
 struct crypto_attr_alg {
        char name[CRYPTO_MAX_ALG_NAME];
 };
 
+struct crypto_attr_type {
+       u32 type;
+       u32 mask;
+};
+
+struct crypto_attr_u32 {
+       u32 num;
+};
+
 /* 
  * Transform user interface.
  */
  
-/*
- * crypto_alloc_tfm() will first attempt to locate an already loaded algorithm.
- * If that fails and the kernel supports dynamically loadable modules, it
- * will then attempt to load a module of the same name or alias.  A refcount
- * is grabbed on the algorithm which is then associated with the new transform.
- *
- * crypto_free_tfm() frees up the transform and any associated resources,
- * then drops the refcount on the associated algorithm.
- */
-struct crypto_tfm *crypto_alloc_tfm(const char *alg_name, u32 tfm_flags);
-void crypto_free_tfm(struct crypto_tfm *tfm);
+struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask);
+void crypto_destroy_tfm(void *mem, struct crypto_tfm *tfm);
+
+static inline void crypto_free_tfm(struct crypto_tfm *tfm)
+{
+       return crypto_destroy_tfm(tfm, tfm);
+}
+
+int alg_test(const char *driver, const char *alg, u32 type, u32 mask);
 
 /*
  * Transform helpers which query the underlying algorithm.
@@ -318,38 +521,29 @@ static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
        return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
 }
 
-static inline unsigned int crypto_tfm_alg_min_keysize(struct crypto_tfm *tfm)
-{
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       return tfm->__crt_alg->cra_cipher.cia_min_keysize;
-}
-
-static inline unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm)
+static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       return tfm->__crt_alg->cra_cipher.cia_max_keysize;
+       return tfm->__crt_alg->cra_blocksize;
 }
 
-static inline unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm)
+static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       return tfm->crt_cipher.cit_ivsize;
+       return tfm->__crt_alg->cra_alignmask;
 }
 
-static inline unsigned int crypto_tfm_alg_blocksize(struct crypto_tfm *tfm)
+static inline u32 crypto_tfm_get_flags(struct crypto_tfm *tfm)
 {
-       return tfm->__crt_alg->cra_blocksize;
+       return tfm->crt_flags;
 }
 
-static inline unsigned int crypto_tfm_alg_digestsize(struct crypto_tfm *tfm)
+static inline void crypto_tfm_set_flags(struct crypto_tfm *tfm, u32 flags)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
-       return tfm->__crt_alg->cra_digest.dia_digestsize;
+       tfm->crt_flags |= flags;
 }
 
-static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
+static inline void crypto_tfm_clear_flags(struct crypto_tfm *tfm, u32 flags)
 {
-       return tfm->__crt_alg->cra_alignmask;
+       tfm->crt_flags &= ~flags;
 }
 
 static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
@@ -366,126 +560,727 @@ static inline unsigned int crypto_tfm_ctx_alignment(void)
 /*
  * API wrappers.
  */
-static inline void crypto_digest_init(struct crypto_tfm *tfm)
+static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast(
+       struct crypto_tfm *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
-       tfm->crt_digest.dit_init(tfm);
+       return (struct crypto_ablkcipher *)tfm;
 }
 
-static inline void crypto_digest_update(struct crypto_tfm *tfm,
-                                        struct scatterlist *sg,
-                                        unsigned int nsg)
+static inline u32 crypto_skcipher_type(u32 type)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
-       tfm->crt_digest.dit_update(tfm, sg, nsg);
+       type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
+       type |= CRYPTO_ALG_TYPE_BLKCIPHER;
+       return type;
 }
 
-static inline void crypto_digest_final(struct crypto_tfm *tfm, u8 *out)
+static inline u32 crypto_skcipher_mask(u32 mask)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
-       tfm->crt_digest.dit_final(tfm, out);
+       mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
+       mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
+       return mask;
 }
 
-static inline void crypto_digest_digest(struct crypto_tfm *tfm,
-                                        struct scatterlist *sg,
-                                        unsigned int nsg, u8 *out)
+struct crypto_ablkcipher *crypto_alloc_ablkcipher(const char *alg_name,
+                                                 u32 type, u32 mask);
+
+static inline struct crypto_tfm *crypto_ablkcipher_tfm(
+       struct crypto_ablkcipher *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
-       tfm->crt_digest.dit_digest(tfm, sg, nsg, out);
+       return &tfm->base;
 }
 
-static inline int crypto_digest_setkey(struct crypto_tfm *tfm,
-                                       const u8 *key, unsigned int keylen)
+static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
-       return tfm->crt_digest.dit_setkey(tfm, key, keylen);
+       crypto_free_tfm(crypto_ablkcipher_tfm(tfm));
 }
 
-static inline int crypto_cipher_setkey(struct crypto_tfm *tfm,
-                                       const u8 *key, unsigned int keylen)
+static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
+                                       u32 mask)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       return tfm->crt_cipher.cit_setkey(tfm, key, keylen);
+       return crypto_has_alg(alg_name, crypto_skcipher_type(type),
+                             crypto_skcipher_mask(mask));
 }
 
-static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm,
-                                        struct scatterlist *dst,
-                                        struct scatterlist *src,
-                                        unsigned int nbytes)
+static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(
+       struct crypto_ablkcipher *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes);
-}                                        
+       return &crypto_ablkcipher_tfm(tfm)->crt_ablkcipher;
+}
 
-static inline int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm,
-                                           struct scatterlist *dst,
-                                           struct scatterlist *src,
-                                           unsigned int nbytes, u8 *iv)
+static inline unsigned int crypto_ablkcipher_ivsize(
+       struct crypto_ablkcipher *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       return tfm->crt_cipher.cit_encrypt_iv(tfm, dst, src, nbytes, iv);
-}                                        
+       return crypto_ablkcipher_crt(tfm)->ivsize;
+}
 
-static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm,
-                                        struct scatterlist *dst,
-                                        struct scatterlist *src,
-                                        unsigned int nbytes)
+static inline unsigned int crypto_ablkcipher_blocksize(
+       struct crypto_ablkcipher *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes);
+       return crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(tfm));
 }
 
-static inline int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm,
-                                           struct scatterlist *dst,
-                                           struct scatterlist *src,
-                                           unsigned int nbytes, u8 *iv)
+static inline unsigned int crypto_ablkcipher_alignmask(
+       struct crypto_ablkcipher *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       return tfm->crt_cipher.cit_decrypt_iv(tfm, dst, src, nbytes, iv);
+       return crypto_tfm_alg_alignmask(crypto_ablkcipher_tfm(tfm));
 }
 
-static inline void crypto_cipher_set_iv(struct crypto_tfm *tfm,
-                                        const u8 *src, unsigned int len)
+static inline u32 crypto_ablkcipher_get_flags(struct crypto_ablkcipher *tfm)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       memcpy(tfm->crt_cipher.cit_iv, src, len);
+       return crypto_tfm_get_flags(crypto_ablkcipher_tfm(tfm));
+}
+
+static inline void crypto_ablkcipher_set_flags(struct crypto_ablkcipher *tfm,
+                                              u32 flags)
+{
+       crypto_tfm_set_flags(crypto_ablkcipher_tfm(tfm), flags);
+}
+
+static inline void crypto_ablkcipher_clear_flags(struct crypto_ablkcipher *tfm,
+                                                u32 flags)
+{
+       crypto_tfm_clear_flags(crypto_ablkcipher_tfm(tfm), flags);
+}
+
+static inline int crypto_ablkcipher_setkey(struct crypto_ablkcipher *tfm,
+                                          const u8 *key, unsigned int keylen)
+{
+       struct ablkcipher_tfm *crt = crypto_ablkcipher_crt(tfm);
+
+       return crt->setkey(crt->base, key, keylen);
+}
+
+static inline struct crypto_ablkcipher *crypto_ablkcipher_reqtfm(
+       struct ablkcipher_request *req)
+{
+       return __crypto_ablkcipher_cast(req->base.tfm);
+}
+
+static inline int crypto_ablkcipher_encrypt(struct ablkcipher_request *req)
+{
+       struct ablkcipher_tfm *crt =
+               crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
+       return crt->encrypt(req);
+}
+
+static inline int crypto_ablkcipher_decrypt(struct ablkcipher_request *req)
+{
+       struct ablkcipher_tfm *crt =
+               crypto_ablkcipher_crt(crypto_ablkcipher_reqtfm(req));
+       return crt->decrypt(req);
+}
+
+static inline unsigned int crypto_ablkcipher_reqsize(
+       struct crypto_ablkcipher *tfm)
+{
+       return crypto_ablkcipher_crt(tfm)->reqsize;
+}
+
+static inline void ablkcipher_request_set_tfm(
+       struct ablkcipher_request *req, struct crypto_ablkcipher *tfm)
+{
+       req->base.tfm = crypto_ablkcipher_tfm(crypto_ablkcipher_crt(tfm)->base);
+}
+
+static inline struct ablkcipher_request *ablkcipher_request_cast(
+       struct crypto_async_request *req)
+{
+       return container_of(req, struct ablkcipher_request, base);
+}
+
+static inline struct ablkcipher_request *ablkcipher_request_alloc(
+       struct crypto_ablkcipher *tfm, gfp_t gfp)
+{
+       struct ablkcipher_request *req;
+
+       req = kmalloc(sizeof(struct ablkcipher_request) +
+                     crypto_ablkcipher_reqsize(tfm), gfp);
+
+       if (likely(req))
+               ablkcipher_request_set_tfm(req, tfm);
+
+       return req;
+}
+
+static inline void ablkcipher_request_free(struct ablkcipher_request *req)
+{
+       kzfree(req);
+}
+
+static inline void ablkcipher_request_set_callback(
+       struct ablkcipher_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 ablkcipher_request_set_crypt(
+       struct ablkcipher_request *req,
+       struct scatterlist *src, struct scatterlist *dst,
+       unsigned int nbytes, void *iv)
+{
+       req->src = src;
+       req->dst = dst;
+       req->nbytes = nbytes;
+       req->info = iv;
+}
+
+static inline struct crypto_aead *__crypto_aead_cast(struct crypto_tfm *tfm)
+{
+       return (struct crypto_aead *)tfm;
+}
+
+struct crypto_aead *crypto_alloc_aead(const char *alg_name, u32 type, u32 mask);
+
+static inline struct crypto_tfm *crypto_aead_tfm(struct crypto_aead *tfm)
+{
+       return &tfm->base;
+}
+
+static inline void crypto_free_aead(struct crypto_aead *tfm)
+{
+       crypto_free_tfm(crypto_aead_tfm(tfm));
+}
+
+static inline struct aead_tfm *crypto_aead_crt(struct crypto_aead *tfm)
+{
+       return &crypto_aead_tfm(tfm)->crt_aead;
+}
+
+static inline unsigned int crypto_aead_ivsize(struct crypto_aead *tfm)
+{
+       return crypto_aead_crt(tfm)->ivsize;
+}
+
+static inline unsigned int crypto_aead_authsize(struct crypto_aead *tfm)
+{
+       return crypto_aead_crt(tfm)->authsize;
+}
+
+static inline unsigned int crypto_aead_blocksize(struct crypto_aead *tfm)
+{
+       return crypto_tfm_alg_blocksize(crypto_aead_tfm(tfm));
+}
+
+static inline unsigned int crypto_aead_alignmask(struct crypto_aead *tfm)
+{
+       return crypto_tfm_alg_alignmask(crypto_aead_tfm(tfm));
+}
+
+static inline u32 crypto_aead_get_flags(struct crypto_aead *tfm)
+{
+       return crypto_tfm_get_flags(crypto_aead_tfm(tfm));
+}
+
+static inline void crypto_aead_set_flags(struct crypto_aead *tfm, u32 flags)
+{
+       crypto_tfm_set_flags(crypto_aead_tfm(tfm), flags);
+}
+
+static inline void crypto_aead_clear_flags(struct crypto_aead *tfm, u32 flags)
+{
+       crypto_tfm_clear_flags(crypto_aead_tfm(tfm), flags);
+}
+
+static inline int crypto_aead_setkey(struct crypto_aead *tfm, const u8 *key,
+                                    unsigned int keylen)
+{
+       struct aead_tfm *crt = crypto_aead_crt(tfm);
+
+       return crt->setkey(crt->base, key, keylen);
+}
+
+int crypto_aead_setauthsize(struct crypto_aead *tfm, unsigned int authsize);
+
+static inline struct crypto_aead *crypto_aead_reqtfm(struct aead_request *req)
+{
+       return __crypto_aead_cast(req->base.tfm);
+}
+
+static inline int crypto_aead_encrypt(struct aead_request *req)
+{
+       return crypto_aead_crt(crypto_aead_reqtfm(req))->encrypt(req);
+}
+
+static inline int crypto_aead_decrypt(struct aead_request *req)
+{
+       return crypto_aead_crt(crypto_aead_reqtfm(req))->decrypt(req);
+}
+
+static inline unsigned int crypto_aead_reqsize(struct crypto_aead *tfm)
+{
+       return crypto_aead_crt(tfm)->reqsize;
+}
+
+static inline void aead_request_set_tfm(struct aead_request *req,
+                                       struct crypto_aead *tfm)
+{
+       req->base.tfm = crypto_aead_tfm(crypto_aead_crt(tfm)->base);
+}
+
+static inline struct aead_request *aead_request_alloc(struct crypto_aead *tfm,
+                                                     gfp_t gfp)
+{
+       struct aead_request *req;
+
+       req = kmalloc(sizeof(*req) + crypto_aead_reqsize(tfm), gfp);
+
+       if (likely(req))
+               aead_request_set_tfm(req, tfm);
+
+       return req;
+}
+
+static inline void aead_request_free(struct aead_request *req)
+{
+       kzfree(req);
+}
+
+static inline void aead_request_set_callback(struct aead_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 aead_request_set_crypt(struct aead_request *req,
+                                         struct scatterlist *src,
+                                         struct scatterlist *dst,
+                                         unsigned int cryptlen, u8 *iv)
+{
+       req->src = src;
+       req->dst = dst;
+       req->cryptlen = cryptlen;
+       req->iv = iv;
+}
+
+static inline void aead_request_set_assoc(struct aead_request *req,
+                                         struct scatterlist *assoc,
+                                         unsigned int assoclen)
+{
+       req->assoc = assoc;
+       req->assoclen = assoclen;
+}
+
+static inline struct crypto_blkcipher *__crypto_blkcipher_cast(
+       struct crypto_tfm *tfm)
+{
+       return (struct crypto_blkcipher *)tfm;
+}
+
+static inline struct crypto_blkcipher *crypto_blkcipher_cast(
+       struct crypto_tfm *tfm)
+{
+       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_BLKCIPHER);
+       return __crypto_blkcipher_cast(tfm);
+}
+
+static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
+       const char *alg_name, u32 type, u32 mask)
+{
+       type &= ~CRYPTO_ALG_TYPE_MASK;
+       type |= CRYPTO_ALG_TYPE_BLKCIPHER;
+       mask |= CRYPTO_ALG_TYPE_MASK;
+
+       return __crypto_blkcipher_cast(crypto_alloc_base(alg_name, type, mask));
+}
+
+static inline struct crypto_tfm *crypto_blkcipher_tfm(
+       struct crypto_blkcipher *tfm)
+{
+       return &tfm->base;
+}
+
+static inline void crypto_free_blkcipher(struct crypto_blkcipher *tfm)
+{
+       crypto_free_tfm(crypto_blkcipher_tfm(tfm));
+}
+
+static inline int crypto_has_blkcipher(const char *alg_name, u32 type, u32 mask)
+{
+       type &= ~CRYPTO_ALG_TYPE_MASK;
+       type |= CRYPTO_ALG_TYPE_BLKCIPHER;
+       mask |= CRYPTO_ALG_TYPE_MASK;
+
+       return crypto_has_alg(alg_name, type, mask);
+}
+
+static inline const char *crypto_blkcipher_name(struct crypto_blkcipher *tfm)
+{
+       return crypto_tfm_alg_name(crypto_blkcipher_tfm(tfm));
+}
+
+static inline struct blkcipher_tfm *crypto_blkcipher_crt(
+       struct crypto_blkcipher *tfm)
+{
+       return &crypto_blkcipher_tfm(tfm)->crt_blkcipher;
+}
+
+static inline struct blkcipher_alg *crypto_blkcipher_alg(
+       struct crypto_blkcipher *tfm)
+{
+       return &crypto_blkcipher_tfm(tfm)->__crt_alg->cra_blkcipher;
+}
+
+static inline unsigned int crypto_blkcipher_ivsize(struct crypto_blkcipher *tfm)
+{
+       return crypto_blkcipher_alg(tfm)->ivsize;
+}
+
+static inline unsigned int crypto_blkcipher_blocksize(
+       struct crypto_blkcipher *tfm)
+{
+       return crypto_tfm_alg_blocksize(crypto_blkcipher_tfm(tfm));
+}
+
+static inline unsigned int crypto_blkcipher_alignmask(
+       struct crypto_blkcipher *tfm)
+{
+       return crypto_tfm_alg_alignmask(crypto_blkcipher_tfm(tfm));
+}
+
+static inline u32 crypto_blkcipher_get_flags(struct crypto_blkcipher *tfm)
+{
+       return crypto_tfm_get_flags(crypto_blkcipher_tfm(tfm));
+}
+
+static inline void crypto_blkcipher_set_flags(struct crypto_blkcipher *tfm,
+                                             u32 flags)
+{
+       crypto_tfm_set_flags(crypto_blkcipher_tfm(tfm), flags);
+}
+
+static inline void crypto_blkcipher_clear_flags(struct crypto_blkcipher *tfm,
+                                               u32 flags)
+{
+       crypto_tfm_clear_flags(crypto_blkcipher_tfm(tfm), flags);
 }
 
-static inline void crypto_cipher_get_iv(struct crypto_tfm *tfm,
-                                        u8 *dst, unsigned int len)
+static inline int crypto_blkcipher_setkey(struct crypto_blkcipher *tfm,
+                                         const u8 *key, unsigned int keylen)
+{
+       return crypto_blkcipher_crt(tfm)->setkey(crypto_blkcipher_tfm(tfm),
+                                                key, keylen);
+}
+
+static inline int crypto_blkcipher_encrypt(struct blkcipher_desc *desc,
+                                          struct scatterlist *dst,
+                                          struct scatterlist *src,
+                                          unsigned int nbytes)
+{
+       desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
+       return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
+}
+
+static inline int crypto_blkcipher_encrypt_iv(struct blkcipher_desc *desc,
+                                             struct scatterlist *dst,
+                                             struct scatterlist *src,
+                                             unsigned int nbytes)
+{
+       return crypto_blkcipher_crt(desc->tfm)->encrypt(desc, dst, src, nbytes);
+}
+
+static inline int crypto_blkcipher_decrypt(struct blkcipher_desc *desc,
+                                          struct scatterlist *dst,
+                                          struct scatterlist *src,
+                                          unsigned int nbytes)
+{
+       desc->info = crypto_blkcipher_crt(desc->tfm)->iv;
+       return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
+}
+
+static inline int crypto_blkcipher_decrypt_iv(struct blkcipher_desc *desc,
+                                             struct scatterlist *dst,
+                                             struct scatterlist *src,
+                                             unsigned int nbytes)
+{
+       return crypto_blkcipher_crt(desc->tfm)->decrypt(desc, dst, src, nbytes);
+}
+
+static inline void crypto_blkcipher_set_iv(struct crypto_blkcipher *tfm,
+                                          const u8 *src, unsigned int len)
+{
+       memcpy(crypto_blkcipher_crt(tfm)->iv, src, len);
+}
+
+static inline void crypto_blkcipher_get_iv(struct crypto_blkcipher *tfm,
+                                          u8 *dst, unsigned int len)
+{
+       memcpy(dst, crypto_blkcipher_crt(tfm)->iv, len);
+}
+
+static inline struct crypto_cipher *__crypto_cipher_cast(struct crypto_tfm *tfm)
+{
+       return (struct crypto_cipher *)tfm;
+}
+
+static inline struct crypto_cipher *crypto_cipher_cast(struct crypto_tfm *tfm)
 {
        BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-       memcpy(dst, tfm->crt_cipher.cit_iv, len);
+       return __crypto_cipher_cast(tfm);
+}
+
+static inline struct crypto_cipher *crypto_alloc_cipher(const char *alg_name,
+                                                       u32 type, u32 mask)
+{
+       type &= ~CRYPTO_ALG_TYPE_MASK;
+       type |= CRYPTO_ALG_TYPE_CIPHER;
+       mask |= CRYPTO_ALG_TYPE_MASK;
+
+       return __crypto_cipher_cast(crypto_alloc_base(alg_name, type, mask));
+}
+
+static inline struct crypto_tfm *crypto_cipher_tfm(struct crypto_cipher *tfm)
+{
+       return &tfm->base;
+}
+
+static inline void crypto_free_cipher(struct crypto_cipher *tfm)
+{
+       crypto_free_tfm(crypto_cipher_tfm(tfm));
+}
+
+static inline int crypto_has_cipher(const char *alg_name, u32 type, u32 mask)
+{
+       type &= ~CRYPTO_ALG_TYPE_MASK;
+       type |= CRYPTO_ALG_TYPE_CIPHER;
+       mask |= CRYPTO_ALG_TYPE_MASK;
+
+       return crypto_has_alg(alg_name, type, mask);
+}
+
+static inline struct cipher_tfm *crypto_cipher_crt(struct crypto_cipher *tfm)
+{
+       return &crypto_cipher_tfm(tfm)->crt_cipher;
 }
 
-static inline int crypto_comp_compress(struct crypto_tfm *tfm,
+static inline unsigned int crypto_cipher_blocksize(struct crypto_cipher *tfm)
+{
+       return crypto_tfm_alg_blocksize(crypto_cipher_tfm(tfm));
+}
+
+static inline unsigned int crypto_cipher_alignmask(struct crypto_cipher *tfm)
+{
+       return crypto_tfm_alg_alignmask(crypto_cipher_tfm(tfm));
+}
+
+static inline u32 crypto_cipher_get_flags(struct crypto_cipher *tfm)
+{
+       return crypto_tfm_get_flags(crypto_cipher_tfm(tfm));
+}
+
+static inline void crypto_cipher_set_flags(struct crypto_cipher *tfm,
+                                          u32 flags)
+{
+       crypto_tfm_set_flags(crypto_cipher_tfm(tfm), flags);
+}
+
+static inline void crypto_cipher_clear_flags(struct crypto_cipher *tfm,
+                                            u32 flags)
+{
+       crypto_tfm_clear_flags(crypto_cipher_tfm(tfm), flags);
+}
+
+static inline int crypto_cipher_setkey(struct crypto_cipher *tfm,
+                                       const u8 *key, unsigned int keylen)
+{
+       return crypto_cipher_crt(tfm)->cit_setkey(crypto_cipher_tfm(tfm),
+                                                 key, keylen);
+}
+
+static inline void crypto_cipher_encrypt_one(struct crypto_cipher *tfm,
+                                            u8 *dst, const u8 *src)
+{
+       crypto_cipher_crt(tfm)->cit_encrypt_one(crypto_cipher_tfm(tfm),
+                                               dst, src);
+}
+
+static inline void crypto_cipher_decrypt_one(struct crypto_cipher *tfm,
+                                            u8 *dst, const u8 *src)
+{
+       crypto_cipher_crt(tfm)->cit_decrypt_one(crypto_cipher_tfm(tfm),
+                                               dst, src);
+}
+
+static inline struct crypto_hash *__crypto_hash_cast(struct crypto_tfm *tfm)
+{
+       return (struct crypto_hash *)tfm;
+}
+
+static inline struct crypto_hash *crypto_hash_cast(struct crypto_tfm *tfm)
+{
+       BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_HASH) &
+              CRYPTO_ALG_TYPE_HASH_MASK);
+       return __crypto_hash_cast(tfm);
+}
+
+static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name,
+                                                   u32 type, u32 mask)
+{
+       type &= ~CRYPTO_ALG_TYPE_MASK;
+       mask &= ~CRYPTO_ALG_TYPE_MASK;
+       type |= CRYPTO_ALG_TYPE_HASH;
+       mask |= CRYPTO_ALG_TYPE_HASH_MASK;
+
+       return __crypto_hash_cast(crypto_alloc_base(alg_name, type, mask));
+}
+
+static inline struct crypto_tfm *crypto_hash_tfm(struct crypto_hash *tfm)
+{
+       return &tfm->base;
+}
+
+static inline void crypto_free_hash(struct crypto_hash *tfm)
+{
+       crypto_free_tfm(crypto_hash_tfm(tfm));
+}
+
+static inline int crypto_has_hash(const char *alg_name, u32 type, u32 mask)
+{
+       type &= ~CRYPTO_ALG_TYPE_MASK;
+       mask &= ~CRYPTO_ALG_TYPE_MASK;
+       type |= CRYPTO_ALG_TYPE_HASH;
+       mask |= CRYPTO_ALG_TYPE_HASH_MASK;
+
+       return crypto_has_alg(alg_name, type, mask);
+}
+
+static inline struct hash_tfm *crypto_hash_crt(struct crypto_hash *tfm)
+{
+       return &crypto_hash_tfm(tfm)->crt_hash;
+}
+
+static inline unsigned int crypto_hash_blocksize(struct crypto_hash *tfm)
+{
+       return crypto_tfm_alg_blocksize(crypto_hash_tfm(tfm));
+}
+
+static inline unsigned int crypto_hash_alignmask(struct crypto_hash *tfm)
+{
+       return crypto_tfm_alg_alignmask(crypto_hash_tfm(tfm));
+}
+
+static inline unsigned int crypto_hash_digestsize(struct crypto_hash *tfm)
+{
+       return crypto_hash_crt(tfm)->digestsize;
+}
+
+static inline u32 crypto_hash_get_flags(struct crypto_hash *tfm)
+{
+       return crypto_tfm_get_flags(crypto_hash_tfm(tfm));
+}
+
+static inline void crypto_hash_set_flags(struct crypto_hash *tfm, u32 flags)
+{
+       crypto_tfm_set_flags(crypto_hash_tfm(tfm), flags);
+}
+
+static inline void crypto_hash_clear_flags(struct crypto_hash *tfm, u32 flags)
+{
+       crypto_tfm_clear_flags(crypto_hash_tfm(tfm), flags);
+}
+
+static inline int crypto_hash_init(struct hash_desc *desc)
+{
+       return crypto_hash_crt(desc->tfm)->init(desc);
+}
+
+static inline int crypto_hash_update(struct hash_desc *desc,
+                                    struct scatterlist *sg,
+                                    unsigned int nbytes)
+{
+       return crypto_hash_crt(desc->tfm)->update(desc, sg, nbytes);
+}
+
+static inline int crypto_hash_final(struct hash_desc *desc, u8 *out)
+{
+       return crypto_hash_crt(desc->tfm)->final(desc, out);
+}
+
+static inline int crypto_hash_digest(struct hash_desc *desc,
+                                    struct scatterlist *sg,
+                                    unsigned int nbytes, u8 *out)
+{
+       return crypto_hash_crt(desc->tfm)->digest(desc, sg, nbytes, out);
+}
+
+static inline int crypto_hash_setkey(struct crypto_hash *hash,
+                                    const u8 *key, unsigned int keylen)
+{
+       return crypto_hash_crt(hash)->setkey(hash, key, keylen);
+}
+
+static inline struct crypto_comp *__crypto_comp_cast(struct crypto_tfm *tfm)
+{
+       return (struct crypto_comp *)tfm;
+}
+
+static inline struct crypto_comp *crypto_comp_cast(struct crypto_tfm *tfm)
+{
+       BUG_ON((crypto_tfm_alg_type(tfm) ^ CRYPTO_ALG_TYPE_COMPRESS) &
+              CRYPTO_ALG_TYPE_MASK);
+       return __crypto_comp_cast(tfm);
+}
+
+static inline struct crypto_comp *crypto_alloc_comp(const char *alg_name,
+                                                   u32 type, u32 mask)
+{
+       type &= ~CRYPTO_ALG_TYPE_MASK;
+       type |= CRYPTO_ALG_TYPE_COMPRESS;
+       mask |= CRYPTO_ALG_TYPE_MASK;
+
+       return __crypto_comp_cast(crypto_alloc_base(alg_name, type, mask));
+}
+
+static inline struct crypto_tfm *crypto_comp_tfm(struct crypto_comp *tfm)
+{
+       return &tfm->base;
+}
+
+static inline void crypto_free_comp(struct crypto_comp *tfm)
+{
+       crypto_free_tfm(crypto_comp_tfm(tfm));
+}
+
+static inline int crypto_has_comp(const char *alg_name, u32 type, u32 mask)
+{
+       type &= ~CRYPTO_ALG_TYPE_MASK;
+       type |= CRYPTO_ALG_TYPE_COMPRESS;
+       mask |= CRYPTO_ALG_TYPE_MASK;
+
+       return crypto_has_alg(alg_name, type, mask);
+}
+
+static inline const char *crypto_comp_name(struct crypto_comp *tfm)
+{
+       return crypto_tfm_alg_name(crypto_comp_tfm(tfm));
+}
+
+static inline struct compress_tfm *crypto_comp_crt(struct crypto_comp *tfm)
+{
+       return &crypto_comp_tfm(tfm)->crt_compress;
+}
+
+static inline int crypto_comp_compress(struct crypto_comp *tfm,
                                        const u8 *src, unsigned int slen,
                                        u8 *dst, unsigned int *dlen)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_COMPRESS);
-       return tfm->crt_compress.cot_compress(tfm, src, slen, dst, dlen);
+       return crypto_comp_crt(tfm)->cot_compress(crypto_comp_tfm(tfm),
+                                                 src, slen, dst, dlen);
 }
 
-static inline int crypto_comp_decompress(struct crypto_tfm *tfm,
+static inline int crypto_comp_decompress(struct crypto_comp *tfm,
                                          const u8 *src, unsigned int slen,
                                          u8 *dst, unsigned int *dlen)
 {
-       BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_COMPRESS);
-       return tfm->crt_compress.cot_decompress(tfm, src, slen, dst, dlen);
+       return crypto_comp_crt(tfm)->cot_decompress(crypto_comp_tfm(tfm),
+                                                   src, slen, dst, dlen);
 }
 
-/*
- * HMAC support.
- */
-#ifdef CONFIG_CRYPTO_HMAC
-void crypto_hmac_init(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen);
-void crypto_hmac_update(struct crypto_tfm *tfm,
-                        struct scatterlist *sg, unsigned int nsg);
-void crypto_hmac_final(struct crypto_tfm *tfm, u8 *key,
-                       unsigned int *keylen, u8 *out);
-void crypto_hmac(struct crypto_tfm *tfm, u8 *key, unsigned int *keylen,
-                 struct scatterlist *sg, unsigned int nsg, u8 *out);
-#endif /* CONFIG_CRYPTO_HMAC */
-
 #endif /* _LINUX_CRYPTO_H */