mirror of
https://github.com/brain-hackers/linux-brain.git
synced 2024-06-09 23:36:23 +09:00
6bfd48096f
Spawns lock a specific crypto algorithm in place. They can then be used with crypto_spawn_tfm to allocate a tfm for that algorithm. When the base algorithm of a spawn is deregistered, all its spawns will be automatically removed. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
61 lines
1.5 KiB
C
61 lines
1.5 KiB
C
/*
|
|
* Cryptographic API for algorithms (i.e., low-level API).
|
|
*
|
|
* Copyright (c) 2006 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_ALGAPI_H
|
|
#define _CRYPTO_ALGAPI_H
|
|
|
|
#include <linux/crypto.h>
|
|
|
|
struct module;
|
|
|
|
struct crypto_instance {
|
|
struct crypto_alg alg;
|
|
|
|
struct crypto_template *tmpl;
|
|
struct hlist_node list;
|
|
|
|
void *__ctx[] CRYPTO_MINALIGN_ATTR;
|
|
};
|
|
|
|
struct crypto_template {
|
|
struct list_head list;
|
|
struct hlist_head instances;
|
|
struct module *module;
|
|
|
|
struct crypto_instance *(*alloc)(void *param, unsigned int len);
|
|
void (*free)(struct crypto_instance *inst);
|
|
|
|
char name[CRYPTO_MAX_ALG_NAME];
|
|
};
|
|
|
|
struct crypto_spawn {
|
|
struct list_head list;
|
|
struct crypto_alg *alg;
|
|
struct crypto_instance *inst;
|
|
};
|
|
|
|
int crypto_register_template(struct crypto_template *tmpl);
|
|
void crypto_unregister_template(struct crypto_template *tmpl);
|
|
struct crypto_template *crypto_lookup_template(const char *name);
|
|
|
|
int crypto_init_spawn(struct crypto_spawn *spawn, struct crypto_alg *alg,
|
|
struct crypto_instance *inst);
|
|
void crypto_drop_spawn(struct crypto_spawn *spawn);
|
|
struct crypto_tfm *crypto_spawn_tfm(struct crypto_spawn *spawn);
|
|
|
|
static inline void *crypto_instance_ctx(struct crypto_instance *inst)
|
|
{
|
|
return inst->__ctx;
|
|
}
|
|
|
|
#endif /* _CRYPTO_ALGAPI_H */
|
|
|