Release 4.9 include/crypto/internal/skcipher.h
/*
* 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_INTERNAL_SKCIPHER_H
#define _CRYPTO_INTERNAL_SKCIPHER_H
#include <crypto/algapi.h>
#include <crypto/skcipher.h>
#include <linux/types.h>
struct rtattr;
struct skcipher_instance {
void (*free)(struct skcipher_instance *inst);
union {
struct {
char head[offsetof(struct skcipher_alg, base)];
struct crypto_instance base;
}
s;
struct skcipher_alg alg;
};
};
struct crypto_skcipher_spawn {
struct crypto_spawn base;
};
extern const struct crypto_type crypto_givcipher_type;
static inline struct crypto_instance *skcipher_crypto_instance(
struct skcipher_instance *inst)
{
return &inst->s.base;
}
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static inline struct skcipher_instance *skcipher_alg_instance(
struct crypto_skcipher *skcipher)
{
return container_of(crypto_skcipher_alg(skcipher),
struct skcipher_instance, alg);
}
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static inline void *skcipher_instance_ctx(struct skcipher_instance *inst)
{
return crypto_instance_ctx(skcipher_crypto_instance(inst));
}
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static inline void skcipher_request_complete(struct skcipher_request *req, int err)
{
req->base.complete(&req->base, err);
}
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static inline void crypto_set_skcipher_spawn(
struct crypto_skcipher_spawn *spawn, struct crypto_instance *inst)
{
crypto_set_spawn(&spawn->base, inst);
}
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int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
u32 type, u32 mask);
static inline int crypto_grab_skcipher2(struct crypto_skcipher_spawn *spawn,
const char *name, u32 type, u32 mask)
{
return crypto_grab_skcipher(spawn, name, type, mask);
}
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struct crypto_alg *crypto_lookup_skcipher(const char *name, u32 type, u32 mask);
static inline void crypto_drop_skcipher(struct crypto_skcipher_spawn *spawn)
{
crypto_drop_spawn(&spawn->base);
}
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static inline struct skcipher_alg *crypto_skcipher_spawn_alg(
struct crypto_skcipher_spawn *spawn)
{
return container_of(spawn->base.alg, struct skcipher_alg, base);
}
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static inline struct skcipher_alg *crypto_spawn_skcipher_alg(
struct crypto_skcipher_spawn *spawn)
{
return crypto_skcipher_spawn_alg(spawn);
}
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static inline struct crypto_skcipher *crypto_spawn_skcipher(
struct crypto_skcipher_spawn *spawn)
{
return crypto_spawn_tfm2(&spawn->base);
}
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static inline struct crypto_skcipher *crypto_spawn_skcipher2(
struct crypto_skcipher_spawn *spawn)
{
return crypto_spawn_skcipher(spawn);
}
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static inline void crypto_skcipher_set_reqsize(
struct crypto_skcipher *skcipher, unsigned int reqsize)
{
skcipher->reqsize = reqsize;
}
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int crypto_register_skcipher(struct skcipher_alg *alg);
void crypto_unregister_skcipher(struct skcipher_alg *alg);
int crypto_register_skciphers(struct skcipher_alg *algs, int count);
void crypto_unregister_skciphers(struct skcipher_alg *algs, int count);
int skcipher_register_instance(struct crypto_template *tmpl,
struct skcipher_instance *inst);
static inline void ablkcipher_request_complete(struct ablkcipher_request *req,
int err)
{
req->base.complete(&req->base, err);
}
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static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req)
{
return req->base.flags;
}
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static inline void *crypto_skcipher_ctx(struct crypto_skcipher *tfm)
{
return crypto_tfm_ctx(&tfm->base);
}
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static inline void *skcipher_request_ctx(struct skcipher_request *req)
{
return req->__ctx;
}
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static inline u32 skcipher_request_flags(struct skcipher_request *req)
{
return req->base.flags;
}
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static inline unsigned int crypto_skcipher_alg_min_keysize(
struct skcipher_alg *alg)
{
if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
CRYPTO_ALG_TYPE_BLKCIPHER)
return alg->base.cra_blkcipher.min_keysize;
if (alg->base.cra_ablkcipher.encrypt)
return alg->base.cra_ablkcipher.min_keysize;
return alg->min_keysize;
}
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static inline unsigned int crypto_skcipher_alg_max_keysize(
struct skcipher_alg *alg)
{
if ((alg->base.cra_flags & CRYPTO_ALG_TYPE_MASK) ==
CRYPTO_ALG_TYPE_BLKCIPHER)
return alg->base.cra_blkcipher.max_keysize;
if (alg->base.cra_ablkcipher.encrypt)
return alg->base.cra_ablkcipher.max_keysize;
return alg->max_keysize;
}
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#endif /* _CRYPTO_INTERNAL_SKCIPHER_H */
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