mirror of
https://github.com/torvalds/linux.git
synced 2024-12-22 19:01:37 +00:00
28a4618ad1
Add a struct akcipher_instance and struct akcipher_spawn similar to how AEAD declares them and the macros for converting to/from crypto_instance/crypto_spawn. Also add register functions to avoid exposing crypto_akcipher_type. Signed-off-by: Andrew Zaborowski <andrew.zaborowski@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
139 lines
3.5 KiB
C
139 lines
3.5 KiB
C
/*
|
|
* Public Key Encryption
|
|
*
|
|
* Copyright (c) 2015, Intel Corporation
|
|
* Authors: Tadeusz Struk <tadeusz.struk@intel.com>
|
|
*
|
|
* 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_AKCIPHER_INT_H
|
|
#define _CRYPTO_AKCIPHER_INT_H
|
|
#include <crypto/akcipher.h>
|
|
#include <crypto/algapi.h>
|
|
|
|
struct akcipher_instance {
|
|
void (*free)(struct akcipher_instance *inst);
|
|
union {
|
|
struct {
|
|
char head[offsetof(struct akcipher_alg, base)];
|
|
struct crypto_instance base;
|
|
} s;
|
|
struct akcipher_alg alg;
|
|
};
|
|
};
|
|
|
|
struct crypto_akcipher_spawn {
|
|
struct crypto_spawn base;
|
|
};
|
|
|
|
/*
|
|
* Transform internal helpers.
|
|
*/
|
|
static inline void *akcipher_request_ctx(struct akcipher_request *req)
|
|
{
|
|
return req->__ctx;
|
|
}
|
|
|
|
static inline void *akcipher_tfm_ctx(struct crypto_akcipher *tfm)
|
|
{
|
|
return tfm->base.__crt_ctx;
|
|
}
|
|
|
|
static inline void akcipher_request_complete(struct akcipher_request *req,
|
|
int err)
|
|
{
|
|
req->base.complete(&req->base, err);
|
|
}
|
|
|
|
static inline const char *akcipher_alg_name(struct crypto_akcipher *tfm)
|
|
{
|
|
return crypto_akcipher_tfm(tfm)->__crt_alg->cra_name;
|
|
}
|
|
|
|
static inline struct crypto_instance *akcipher_crypto_instance(
|
|
struct akcipher_instance *inst)
|
|
{
|
|
return container_of(&inst->alg.base, struct crypto_instance, alg);
|
|
}
|
|
|
|
static inline struct akcipher_instance *akcipher_instance(
|
|
struct crypto_instance *inst)
|
|
{
|
|
return container_of(&inst->alg, struct akcipher_instance, alg.base);
|
|
}
|
|
|
|
static inline struct akcipher_instance *akcipher_alg_instance(
|
|
struct crypto_akcipher *akcipher)
|
|
{
|
|
return akcipher_instance(crypto_tfm_alg_instance(&akcipher->base));
|
|
}
|
|
|
|
static inline void *akcipher_instance_ctx(struct akcipher_instance *inst)
|
|
{
|
|
return crypto_instance_ctx(akcipher_crypto_instance(inst));
|
|
}
|
|
|
|
static inline void crypto_set_akcipher_spawn(
|
|
struct crypto_akcipher_spawn *spawn,
|
|
struct crypto_instance *inst)
|
|
{
|
|
crypto_set_spawn(&spawn->base, inst);
|
|
}
|
|
|
|
int crypto_grab_akcipher(struct crypto_akcipher_spawn *spawn, const char *name,
|
|
u32 type, u32 mask);
|
|
|
|
static inline struct crypto_akcipher *crypto_spawn_akcipher(
|
|
struct crypto_akcipher_spawn *spawn)
|
|
{
|
|
return crypto_spawn_tfm2(&spawn->base);
|
|
}
|
|
|
|
static inline void crypto_drop_akcipher(struct crypto_akcipher_spawn *spawn)
|
|
{
|
|
crypto_drop_spawn(&spawn->base);
|
|
}
|
|
|
|
static inline struct akcipher_alg *crypto_spawn_akcipher_alg(
|
|
struct crypto_akcipher_spawn *spawn)
|
|
{
|
|
return container_of(spawn->base.alg, struct akcipher_alg, base);
|
|
}
|
|
|
|
/**
|
|
* crypto_register_akcipher() -- Register public key algorithm
|
|
*
|
|
* Function registers an implementation of a public key verify algorithm
|
|
*
|
|
* @alg: algorithm definition
|
|
*
|
|
* Return: zero on success; error code in case of error
|
|
*/
|
|
int crypto_register_akcipher(struct akcipher_alg *alg);
|
|
|
|
/**
|
|
* crypto_unregister_akcipher() -- Unregister public key algorithm
|
|
*
|
|
* Function unregisters an implementation of a public key verify algorithm
|
|
*
|
|
* @alg: algorithm definition
|
|
*/
|
|
void crypto_unregister_akcipher(struct akcipher_alg *alg);
|
|
|
|
/**
|
|
* akcipher_register_instance() -- Unregister public key template instance
|
|
*
|
|
* Function registers an implementation of an asymmetric key algorithm
|
|
* created from a template
|
|
*
|
|
* @tmpl: the template from which the algorithm was created
|
|
* @inst: the template instance
|
|
*/
|
|
int akcipher_register_instance(struct crypto_template *tmpl,
|
|
struct akcipher_instance *inst);
|
|
#endif
|