Initial import of modified Linux 2.6.28 tree

Original upstream URL:
git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git | branch linux-2.6.28.y

1 files changed, 1343 insertions, 0 deletions

diff --git a/include/linux/crypto.h b/include/linux/crypto.h
new file mode 100644
index 0000000..3d2317e
--- /dev/null
+++ b/include/linux/crypto.h
@@ -0,0 +1,1343 @@
+/*
+ * Scatterlist Cryptographic API.
+ *
+ * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
+ * Copyright (c) 2002 David S. Miller (davem@redhat.com)
+ * 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.
+ * 
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option) 
+ * any later version.
+ *
+ */
+#ifndef _LINUX_CRYPTO_H
+#define _LINUX_CRYPTO_H
+
+#include <asm/atomic.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/string.h>
+#include <linux/uaccess.h>
+
+/*
+ * Algorithm masks and types.
+ */
+#define CRYPTO_ALG_TYPE_MASK		0x0000000f
+#define CRYPTO_ALG_TYPE_CIPHER		0x00000001
+#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		0x00000009
+#define CRYPTO_ALG_TYPE_AHASH		0x0000000a
+#define CRYPTO_ALG_TYPE_RNG		0x0000000c
+
+#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_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
+
+/*
+ * 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_REQ_MASK		0x000fff00
+#define CRYPTO_TFM_RES_MASK		0xfff00000
+
+#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
+#define CRYPTO_TFM_RES_BAD_BLOCK_LEN 	0x00800000
+#define CRYPTO_TFM_RES_BAD_FLAGS 	0x01000000
+
+/*
+ * Miscellaneous stuff.
+ */
+#define CRYPTO_MAX_ALG_NAME		64
+
+/*
+ * 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
+#else
+#define CRYPTO_MINALIGN __alignof__(unsigned long long)
+#endif
+
+#define CRYPTO_MINALIGN_ATTR __attribute__ ((__aligned__(CRYPTO_MINALIGN)))
+
+struct scatterlist;
+struct crypto_ablkcipher;
+struct crypto_async_request;
+struct crypto_aead;
+struct crypto_blkcipher;
+struct crypto_hash;
+struct crypto_ahash;
+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 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
+ *	@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;
+	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 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 ahash_alg {
+	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;
+};
+
+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;
+	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);
+};
+
+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 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_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);
+};
+
+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_hash	cra_u.hash
+#define cra_ahash	cra_u.ahash
+#define cra_compress	cra_u.compress
+#define cra_rng		cra_u.rng
+
+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;
+
+	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 hash_alg hash;
+		struct ahash_alg ahash;
+		struct compress_alg compress;
+		struct rng_alg rng;
+	} 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;
+};
+
+/*
+ * Algorithm registration interface.
+ */
+int crypto_register_alg(struct crypto_alg *alg);
+int crypto_unregister_alg(struct crypto_alg *alg);
+
+/*
+ * Algorithm query interface.
+ */
+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_*() 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 {
+	int (*cit_setkey)(struct crypto_tfm *tfm,
+	                  const u8 *key, unsigned int keylen);
+	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 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,
+	                    u8 *dst, unsigned int *dlen);
+	int (*cot_decompress)(struct crypto_tfm *tfm,
+	                      const u8 *src, unsigned int slen,
+	                      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_hash	crt_u.hash
+#define crt_ahash	crt_u.ahash
+#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 hash_tfm hash;
+		struct ahash_tfm ahash;
+		struct compress_tfm compress;
+		struct rng_tfm rng;
+	} crt_u;
+	
+	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.
+ */
+ 
+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);
+
+int alg_test(const char *driver, const char *alg, u32 type, u32 mask);
+
+/*
+ * Transform helpers which query the underlying algorithm.
+ */
+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);
+}
+
+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_blocksize(struct crypto_tfm *tfm)
+{
+	return tfm->__crt_alg->cra_blocksize;
+}
+
+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;
+}
+
+static inline unsigned int crypto_tfm_ctx_alignment(void)
+{
+	struct crypto_tfm *tfm;
+	return __alignof__(tfm->__crt_ctx);
+}
+
+/*
+ * API wrappers.
+ */
+static inline struct crypto_ablkcipher *__crypto_ablkcipher_cast(
+	struct crypto_tfm *tfm)
+{
+	return (struct crypto_ablkcipher *)tfm;
+}
+
+static inline u32 crypto_skcipher_type(u32 type)
+{
+	type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
+	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
+	return type;
+}
+
+static inline u32 crypto_skcipher_mask(u32 mask)
+{
+	mask &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
+	mask |= CRYPTO_ALG_TYPE_BLKCIPHER_MASK;
+	return mask;
+}
+
+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)
+{
+	return &tfm->base;
+}
+
+static inline void crypto_free_ablkcipher(struct crypto_ablkcipher *tfm)
+{
+	crypto_free_tfm(crypto_ablkcipher_tfm(tfm));
+}
+
+static inline int crypto_has_ablkcipher(const char *alg_name, u32 type,
+					u32 mask)
+{
+	return crypto_has_alg(alg_name, crypto_skcipher_type(type),
+			      crypto_skcipher_mask(mask));
+}
+
+static inline struct ablkcipher_tfm *crypto_ablkcipher_crt(
+	struct crypto_ablkcipher *tfm)
+{
+	return &crypto_ablkcipher_tfm(tfm)->crt_ablkcipher;
+}
+
+static inline unsigned int crypto_ablkcipher_ivsize(
+	struct crypto_ablkcipher *tfm)
+{
+	return crypto_ablkcipher_crt(tfm)->ivsize;
+}
+
+static inline unsigned int crypto_ablkcipher_blocksize(
+	struct crypto_ablkcipher *tfm)
+{
+	return crypto_tfm_alg_blocksize(crypto_ablkcipher_tfm(tfm));
+}
+
+static inline unsigned int crypto_ablkcipher_alignmask(
+	struct crypto_ablkcipher *tfm)
+{
+	return crypto_tfm_alg_alignmask(crypto_ablkcipher_tfm(tfm));
+}
+
+static inline u32 crypto_ablkcipher_get_flags(struct crypto_ablkcipher *tfm)
+{
+	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)
+{
+	kfree(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)
+{
+	kfree(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 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->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 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)
+{
+	return crypto_comp_crt(tfm)->cot_compress(crypto_comp_tfm(tfm),
+						  src, slen, dst, dlen);
+}
+
+static inline int crypto_comp_decompress(struct crypto_comp *tfm,
+                                         const u8 *src, unsigned int slen,
+                                         u8 *dst, unsigned int *dlen)
+{
+	return crypto_comp_crt(tfm)->cot_decompress(crypto_comp_tfm(tfm),
+						    src, slen, dst, dlen);
+}
+
+#endif	/* _LINUX_CRYPTO_H */
+