1 files changed, 625 insertions, 98 deletions

diff --git a/include/linux/crypto.h b/include/linux/crypto.h
index 5a0470e3611..8f2ffa4caab 100644
--- a/include/linux/crypto.h
+++ b/include/linux/crypto.h
@@ -17,20 +17,36 @@
 #ifndef _LINUX_CRYPTO_H
 #define _LINUX_CRYPTO_H
 
+#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>
-#include <asm/page.h>
+#include <linux/uaccess.h>
 
 /*
  * Algorithm masks and types.
  */
-#define CRYPTO_ALG_TYPE_MASK            0x000000ff
+#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_HASH            0x00000003
+#define CRYPTO_ALG_TYPE_BLKCIPHER       0x00000004
+#define CRYPTO_ALG_TYPE_COMPRESS        0x00000005
+
+#define CRYPTO_ALG_TYPE_HASH_MASK       0x0000000e
+
+#define CRYPTO_ALG_LARVAL               0x00000010
+#define CRYPTO_ALG_DEAD                 0x00000020
+#define CRYPTO_ALG_DYING                0x00000040
+#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
 
 /*
  * Transform masks and values (for crt_flags).
@@ -61,82 +77,156 @@
 #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
+ * aligned correctly for the given architecture so that there are no alignment
+ * faults for C data types.  In particular, this is required on platforms such
+ * as arm where pointers are 32-bit aligned but there are data types such as
+ * u64 which require 64-bit alignment.
+ */
+#if defined(ARCH_KMALLOC_MINALIGN)
+#define CRYPTO_MINALIGN ARCH_KMALLOC_MINALIGN
+#elif defined(ARCH_SLAB_MINALIGN)
+#define CRYPTO_MINALIGN ARCH_SLAB_MINALIGN
+#endif
+
+#ifdef CRYPTO_MINALIGN
+#define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))
+#else
+#define CRYPTO_MINALIGN_ATTR
+#endif
+
 struct scatterlist;
+struct crypto_blkcipher;
+struct crypto_hash;
 struct crypto_tfm;
+struct crypto_type;
+
+struct blkcipher_desc {
+        struct crypto_blkcipher *tfm;
+        void *info;
+        u32 flags;
+};
 
 struct cipher_desc {
         struct crypto_tfm *tfm;
-        void (*crfn)(void *ctx, u8 *dst, const u8 *src);
+        void (*crfn)(struct crypto_tfm *tfm, u8 *dst, const u8 *src);
         unsigned int (*prfn)(const struct cipher_desc *desc, u8 *dst,
                              const u8 *src, unsigned int nbytes);
         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 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);
+
+        unsigned int min_keysize;
+        unsigned int max_keysize;
+        unsigned int ivsize;
+};
+
 struct cipher_alg {
         unsigned int cia_min_keysize;
         unsigned int cia_max_keysize;
-        int (*cia_setkey)(void *ctx, const u8 *key,
-                          unsigned int keylen, u32 *flags);
-        void (*cia_encrypt)(void *ctx, u8 *dst, const u8 *src);
-        void (*cia_decrypt)(void *ctx, u8 *dst, const u8 *src);
+        int (*cia_setkey)(struct crypto_tfm *tfm, const u8 *key,
+                          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 nbytes) __deprecated;
         unsigned int (*cia_decrypt_ecb)(const struct cipher_desc *desc,
                                         u8 *dst, const u8 *src,
-                                        unsigned int nbytes);
+                                        unsigned int nbytes) __deprecated;
         unsigned int (*cia_encrypt_cbc)(const struct cipher_desc *desc,
                                         u8 *dst, const u8 *src,
-                                        unsigned int nbytes);
+                                        unsigned int nbytes) __deprecated;
         unsigned int (*cia_decrypt_cbc)(const struct cipher_desc *desc,
                                         u8 *dst, const u8 *src,
-                                        unsigned int nbytes);
+                                        unsigned int nbytes) __deprecated;
 };
 
 struct digest_alg {
         unsigned int dia_digestsize;
-        void (*dia_init)(void *ctx);
-        void (*dia_update)(void *ctx, const u8 *data, unsigned int len);
-        void (*dia_final)(void *ctx, u8 *out);
-        int (*dia_setkey)(void *ctx, const u8 *key,
-                          unsigned int keylen, u32 *flags);
+        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 hash_alg {
+        int (*init)(struct hash_desc *desc);
+        int (*update)(struct hash_desc *desc, struct scatterlist *sg,
+                      unsigned int nbytes);
+        int (*final)(struct hash_desc *desc, u8 *out);
+        int (*digest)(struct hash_desc *desc, struct scatterlist *sg,
+                      unsigned int nbytes, u8 *out);
+        int (*setkey)(struct crypto_hash *tfm, const u8 *key,
+                      unsigned int keylen);
+
+        unsigned int digestsize;
 };
 
 struct compress_alg {
-        int (*coa_init)(void *ctx);
-        void (*coa_exit)(void *ctx);
-        int (*coa_compress)(void *ctx, const u8 *src, unsigned int slen,
-                            u8 *dst, unsigned int *dlen);
-        int (*coa_decompress)(void *ctx, const u8 *src, unsigned int slen,
-                              u8 *dst, unsigned int *dlen);
+        int (*coa_compress)(struct crypto_tfm *tfm, const u8 *src,
+                            unsigned int slen, u8 *dst, unsigned int *dlen);
+        int (*coa_decompress)(struct crypto_tfm *tfm, const u8 *src,
+                              unsigned int slen, u8 *dst, unsigned int *dlen);
 };
 
+#define cra_blkcipher   cra_u.blkcipher
 #define cra_cipher      cra_u.cipher
 #define cra_digest      cra_u.digest
+#define cra_hash        cra_u.hash
 #define cra_compress    cra_u.compress
 
 struct crypto_alg {
         struct list_head cra_list;
+        struct list_head cra_users;
+
         u32 cra_flags;
         unsigned int cra_blocksize;
         unsigned int cra_ctxsize;
         unsigned int cra_alignmask;
 
         int cra_priority;
+        atomic_t cra_refcnt;
 
-        const char cra_name[CRYPTO_MAX_ALG_NAME];
-        const char cra_driver_name[CRYPTO_MAX_ALG_NAME];
+        char cra_name[CRYPTO_MAX_ALG_NAME];
+        char cra_driver_name[CRYPTO_MAX_ALG_NAME];
+
+        const struct crypto_type *cra_type;
 
         union {
+                struct blkcipher_alg blkcipher;
                 struct cipher_alg cipher;
                 struct digest_alg digest;
+                struct hash_alg hash;
                 struct compress_alg compress;
         } cra_u;
+
+        int (*cra_init)(struct crypto_tfm *tfm);
+        void (*cra_exit)(struct crypto_tfm *tfm);
+        void (*cra_destroy)(struct crypto_alg *alg);
         
         struct module *cra_module;
 };
@@ -151,20 +241,39 @@ int crypto_unregister_alg(struct crypto_alg *alg);
  * Algorithm query interface.
  */
 #ifdef CONFIG_CRYPTO
-int crypto_alg_available(const char *name, u32 flags);
+int crypto_alg_available(const char *name, u32 flags)
+        __deprecated_for_modules;
+int crypto_has_alg(const char *name, u32 type, u32 mask);
 #else
+static int crypto_alg_available(const char *name, u32 flags);
+        __deprecated_for_modules;
 static inline int crypto_alg_available(const char *name, u32 flags)
 {
         return 0;
 }
+
+static inline int crypto_has_alg(const char *name, u32 type, u32 mask)
+{
+        return 0;
+}
 #endif
 
 /*
  * 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 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;
@@ -188,20 +297,20 @@ struct cipher_tfm {
                            struct scatterlist *src,
                            unsigned int nbytes, u8 *iv);
         void (*cit_xor_block)(u8 *dst, const u8 *src);
+        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 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
+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 {
@@ -213,8 +322,9 @@ struct compress_tfm {
                               u8 *dst, unsigned int *dlen);
 };
 
+#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
 
 struct crypto_tfm {
@@ -222,30 +332,43 @@ struct crypto_tfm {
         u32 crt_flags;
         
         union {
+                struct blkcipher_tfm blkcipher;
                 struct cipher_tfm cipher;
-                struct digest_tfm digest;
+                struct hash_tfm hash;
                 struct compress_tfm compress;
         } crt_u;
         
         struct crypto_alg *__crt_alg;
 
-        char __crt_ctx[] __attribute__ ((__aligned__));
+        void *__crt_ctx[] CRYPTO_MINALIGN_ATTR;
+};
+
+#define crypto_cipher crypto_tfm
+#define crypto_comp crypto_tfm
+
+struct crypto_blkcipher {
+        struct crypto_tfm base;
+};
+
+struct crypto_hash {
+        struct crypto_tfm base;
+};
+
+enum {
+        CRYPTOA_UNSPEC,
+        CRYPTOA_ALG,
+};
+
+struct crypto_attr_alg {
+        char name[CRYPTO_MAX_ALG_NAME];
 };
 
 /* 
  * 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);
+struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask);
 void crypto_free_tfm(struct crypto_tfm *tfm);
 
 /*
@@ -256,6 +379,16 @@ static inline const char *crypto_tfm_alg_name(struct crypto_tfm *tfm)
         return tfm->__crt_alg->cra_name;
 }
 
+static inline const char *crypto_tfm_alg_driver_name(struct crypto_tfm *tfm)
+{
+        return tfm->__crt_alg->cra_driver_name;
+}
+
+static inline int crypto_tfm_alg_priority(struct crypto_tfm *tfm)
+{
+        return tfm->__crt_alg->cra_priority;
+}
+
 static inline const char *crypto_tfm_alg_modname(struct crypto_tfm *tfm)
 {
         return module_name(tfm->__crt_alg->cra_module);
@@ -266,18 +399,23 @@ static inline u32 crypto_tfm_alg_type(struct crypto_tfm *tfm)
         return tfm->__crt_alg->cra_flags & CRYPTO_ALG_TYPE_MASK;
 }
 
+static unsigned int crypto_tfm_alg_min_keysize(struct crypto_tfm *tfm)
+        __deprecated;
 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 unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm)
+        __deprecated;
 static inline unsigned int crypto_tfm_alg_max_keysize(struct crypto_tfm *tfm)
 {
         BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
         return tfm->__crt_alg->cra_cipher.cia_max_keysize;
 }
 
+static unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm) __deprecated;
 static inline unsigned int crypto_tfm_alg_ivsize(struct crypto_tfm *tfm)
 {
         BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
@@ -300,6 +438,21 @@ static inline unsigned int crypto_tfm_alg_alignmask(struct crypto_tfm *tfm)
         return tfm->__crt_alg->cra_alignmask;
 }
 
+static inline u32 crypto_tfm_get_flags(struct crypto_tfm *tfm)
+{
+        return tfm->crt_flags;
+}
+
+static inline void crypto_tfm_set_flags(struct crypto_tfm *tfm, u32 flags)
+{
+        tfm->crt_flags |= flags;
+}
+
+static inline void crypto_tfm_clear_flags(struct crypto_tfm *tfm, u32 flags)
+{
+        tfm->crt_flags &= ~flags;
+}
+
 static inline void *crypto_tfm_ctx(struct crypto_tfm *tfm)
 {
         return tfm->__crt_ctx;
@@ -314,50 +467,374 @@ 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_blkcipher *__crypto_blkcipher_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_blkcipher *)tfm;
 }
 
-static inline void crypto_digest_update(struct crypto_tfm *tfm,
-                                        struct scatterlist *sg,
-                                        unsigned int nsg)
+static inline struct crypto_blkcipher *crypto_blkcipher_cast(
+        struct crypto_tfm *tfm)
 {
-        BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
-        tfm->crt_digest.dit_update(tfm, sg, nsg);
+        BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_BLKCIPHER);
+        return __crypto_blkcipher_cast(tfm);
 }
 
-static inline void crypto_digest_final(struct crypto_tfm *tfm, u8 *out)
+static inline struct crypto_blkcipher *crypto_alloc_blkcipher(
+        const char *alg_name, u32 type, u32 mask)
 {
-        BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
-        tfm->crt_digest.dit_final(tfm, out);
+        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 void crypto_digest_digest(struct crypto_tfm *tfm,
-                                        struct scatterlist *sg,
-                                        unsigned int nsg, u8 *out)
+static inline struct crypto_tfm *crypto_blkcipher_tfm(
+        struct crypto_blkcipher *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,
+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 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);
+        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;
+}
+
+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 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)
 {
-        BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_DIGEST);
-        if (tfm->crt_digest.dit_setkey == NULL)
-                return -ENOSYS;
-        return tfm->crt_digest.dit_setkey(tfm, key, 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 int crypto_cipher_setkey(struct crypto_tfm *tfm,
+void crypto_digest_init(struct crypto_tfm *tfm) __deprecated_for_modules;
+void crypto_digest_update(struct crypto_tfm *tfm,
+                          struct scatterlist *sg, unsigned int nsg)
+        __deprecated_for_modules;
+void crypto_digest_final(struct crypto_tfm *tfm, u8 *out)
+        __deprecated_for_modules;
+void crypto_digest_digest(struct crypto_tfm *tfm,
+                          struct scatterlist *sg, unsigned int nsg, u8 *out)
+        __deprecated_for_modules;
+
+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 int crypto_digest_setkey(struct crypto_tfm *tfm, const u8 *key,
+                                unsigned int keylen) __deprecated;
+static inline int crypto_digest_setkey(struct crypto_tfm *tfm,
                                        const u8 *key, unsigned int keylen)
 {
-        BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-        return tfm->crt_cipher.cit_setkey(tfm, key, keylen);
+        return tfm->crt_hash.setkey(crypto_hash_cast(tfm), key, keylen);
 }
 
+static inline struct crypto_hash *crypto_alloc_hash(const char *alg_name,
+                                                    u32 type, u32 mask)
+{
+        type &= ~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;
+        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 int crypto_cipher_encrypt(struct crypto_tfm *tfm,
+                                 struct scatterlist *dst,
+                                 struct scatterlist *src,
+                                 unsigned int nbytes) __deprecated;
 static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm,
                                         struct scatterlist *dst,
                                         struct scatterlist *src,
@@ -367,16 +844,23 @@ static inline int crypto_cipher_encrypt(struct crypto_tfm *tfm,
         return tfm->crt_cipher.cit_encrypt(tfm, dst, src, nbytes);
 }                                        
 
+static int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm,
+                                    struct scatterlist *dst,
+                                    struct scatterlist *src,
+                                    unsigned int nbytes, u8 *iv) __deprecated;
 static inline int crypto_cipher_encrypt_iv(struct crypto_tfm *tfm,
                                            struct scatterlist *dst,
                                            struct scatterlist *src,
                                            unsigned int nbytes, u8 *iv)
 {
         BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-        BUG_ON(tfm->crt_cipher.cit_mode == CRYPTO_TFM_MODE_ECB);
         return tfm->crt_cipher.cit_encrypt_iv(tfm, dst, src, nbytes, iv);
 }                                        
 
+static int crypto_cipher_decrypt(struct crypto_tfm *tfm,
+                                 struct scatterlist *dst,
+                                 struct scatterlist *src,
+                                 unsigned int nbytes) __deprecated;
 static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm,
                                         struct scatterlist *dst,
                                         struct scatterlist *src,
@@ -386,16 +870,21 @@ static inline int crypto_cipher_decrypt(struct crypto_tfm *tfm,
         return tfm->crt_cipher.cit_decrypt(tfm, dst, src, nbytes);
 }
 
+static int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm,
+                                    struct scatterlist *dst,
+                                    struct scatterlist *src,
+                                    unsigned int nbytes, u8 *iv) __deprecated;
 static inline int crypto_cipher_decrypt_iv(struct crypto_tfm *tfm,
                                            struct scatterlist *dst,
                                            struct scatterlist *src,
                                            unsigned int nbytes, u8 *iv)
 {
         BUG_ON(crypto_tfm_alg_type(tfm) != CRYPTO_ALG_TYPE_CIPHER);
-        BUG_ON(tfm->crt_cipher.cit_mode == CRYPTO_TFM_MODE_ECB);
         return tfm->crt_cipher.cit_decrypt_iv(tfm, dst, src, nbytes, iv);
 }
 
+static void crypto_cipher_set_iv(struct crypto_tfm *tfm,
+                                 const u8 *src, unsigned int len) __deprecated;
 static inline void crypto_cipher_set_iv(struct crypto_tfm *tfm,
                                         const u8 *src, unsigned int len)
 {
@@ -403,6 +892,8 @@ static inline void crypto_cipher_set_iv(struct crypto_tfm *tfm,
         memcpy(tfm->crt_cipher.cit_iv, src, len);
 }
 
+static void crypto_cipher_get_iv(struct crypto_tfm *tfm,
+                                 u8 *dst, unsigned int len) __deprecated;
 static inline void crypto_cipher_get_iv(struct crypto_tfm *tfm,
                                         u8 *dst, unsigned int len)
 {
@@ -410,34 +901,70 @@ static inline void crypto_cipher_get_iv(struct crypto_tfm *tfm,
         memcpy(dst, tfm->crt_cipher.cit_iv, len);
 }
 
-static inline int crypto_comp_compress(struct crypto_tfm *tfm,
+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;
+}
+
+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(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(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 */