/* * Symmetric key ciphers. *  * Copyright (c) 2007 Herbert Xu <herbert@gondor.apana.org.au> * * 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 _CRYPTO_SKCIPHER_H#define _CRYPTO_SKCIPHER_H #include <linux/crypto.h>#include <linux/kernel.h>#include <linux/slab.h> /** *	struct skcipher_givcrypt_request - Crypto request with IV generation *	@seq: Sequence number for IV generation *	@giv: Space for generated IV *	@creq: The crypto request itself */struct skcipher_givcrypt_request {	u64 seq;	u8 *giv; 	struct ablkcipher_request creq;}; static inline struct crypto_ablkcipher *skcipher_givcrypt_reqtfm(	struct skcipher_givcrypt_request *req){	return crypto_ablkcipher_reqtfm(&req->creq);} static inline int crypto_skcipher_givencrypt(	struct skcipher_givcrypt_request *req){	struct ablkcipher_tfm *crt =		crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req));	return crt->givencrypt(req);}; static inline int crypto_skcipher_givdecrypt(	struct skcipher_givcrypt_request *req){	struct ablkcipher_tfm *crt =		crypto_ablkcipher_crt(skcipher_givcrypt_reqtfm(req));	return crt->givdecrypt(req);}; static inline void skcipher_givcrypt_set_tfm(	struct skcipher_givcrypt_request *req, struct crypto_ablkcipher *tfm){	req->creq.base.tfm = crypto_ablkcipher_tfm(tfm);} static inline struct skcipher_givcrypt_request *skcipher_givcrypt_cast(	struct crypto_async_request *req){	return container_of(ablkcipher_request_cast(req),			    struct skcipher_givcrypt_request, creq);} static inline struct skcipher_givcrypt_request *skcipher_givcrypt_alloc(	struct crypto_ablkcipher *tfm, gfp_t gfp){	struct skcipher_givcrypt_request *req; 	req = kmalloc(sizeof(struct skcipher_givcrypt_request) +		      crypto_ablkcipher_reqsize(tfm), gfp); 	if (likely(req))		skcipher_givcrypt_set_tfm(req, tfm); 	return req;} static inline void skcipher_givcrypt_free(struct skcipher_givcrypt_request *req){	kfree(req);} static inline void skcipher_givcrypt_set_callback(	struct skcipher_givcrypt_request *req, u32 flags,	crypto_completion_t complete, void *data){	ablkcipher_request_set_callback(&req->creq, flags, complete, data);} static inline void skcipher_givcrypt_set_crypt(	struct skcipher_givcrypt_request *req,	struct scatterlist *src, struct scatterlist *dst,	unsigned int nbytes, void *iv){	ablkcipher_request_set_crypt(&req->creq, src, dst, nbytes, iv);} static inline void skcipher_givcrypt_set_giv(	struct skcipher_givcrypt_request *req, u8 *giv, u64 seq){	req->giv = giv;	req->seq = seq;} #endif	/* _CRYPTO_SKCIPHER_H */