/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Synchronous Compression operations
*
* Copyright 2015 LG Electronics Inc .
* Copyright ( c ) 2016 , Intel Corporation
* Author : Giovanni Cabiddu < giovanni . cabiddu @ intel . com >
*/
#ifndef _CRYPTO_SCOMP_INT_H
#define _CRYPTO_SCOMP_INT_H
#include <crypto/internal/acompress.h>
struct crypto_scomp {
struct crypto_tfm base;
};
/**
* struct scomp_alg - synchronous compression algorithm
*
* @ compress : Function performs a compress operation
* @ decompress : Function performs a de - compress operation
* @ streams : Per - cpu memory for algorithm
* @ calg : Cmonn algorithm data structure shared with acomp
*/
struct scomp_alg {
int (*compress)(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx);
int (*decompress)(struct crypto_scomp *tfm, const u8 *src,
unsigned int slen, u8 *dst, unsigned int *dlen,
void *ctx);
struct crypto_acomp_streams streams;
union {
struct COMP_ALG_COMMON;
struct comp_alg_common calg;
};
};
static inline struct scomp_alg *__crypto_scomp_alg(struct crypto_alg *alg)
{
return container_of(alg, struct scomp_alg, base);
}
static inline struct crypto_scomp *__crypto_scomp_tfm(struct crypto_tfm *tfm)
{
return container_of(tfm, struct crypto_scomp, base);
}
static inline struct crypto_tfm *crypto_scomp_tfm(struct crypto_scomp *tfm)
{
return &tfm->base;
}
static inline void crypto_free_scomp(struct crypto_scomp *tfm)
{
crypto_destroy_tfm(tfm, crypto_scomp_tfm(tfm));
}
static inline struct scomp_alg *crypto_scomp_alg(struct crypto_scomp *tfm)
{
return __crypto_scomp_alg(crypto_scomp_tfm(tfm)->__crt_alg);
}
static inline int crypto_scomp_compress(struct crypto_scomp *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen, void *ctx)
{
return crypto_scomp_alg(tfm)->compress(tfm, src, slen, dst, dlen, ctx);
}
static inline int crypto_scomp_decompress(struct crypto_scomp *tfm,
const u8 *src, unsigned int slen,
u8 *dst, unsigned int *dlen,
void *ctx)
{
return crypto_scomp_alg(tfm)->decompress(tfm, src, slen, dst, dlen,
ctx);
}
/**
* crypto_register_scomp ( ) - - Register synchronous compression algorithm
*
* Function registers an implementation of a synchronous
* compression algorithm
*
* @ alg : algorithm definition
*
* Return : zero on success ; error code in case of error
*/
int crypto_register_scomp(struct scomp_alg *alg);
/**
* crypto_unregister_scomp ( ) - - Unregister synchronous compression algorithm
*
* Function unregisters an implementation of a synchronous
* compression algorithm
*
* @ alg : algorithm definition
*/
void crypto_unregister_scomp(struct scomp_alg *alg);
int crypto_register_scomps(struct scomp_alg *algs, int count);
void crypto_unregister_scomps(struct scomp_alg *algs, int count);
#endif
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¤ Dauer der Verarbeitung: 0.9 Sekunden
(vorverarbeitet am 2026-09-27)
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