mirror of
https://github.com/torvalds/linux.git
synced 2024-12-27 21:33:00 +00:00
1e12299400
We lookup algorithms with crypto_alg_mod_lookup() when instantiating via crypto_add_alg(). However, algorithms that are wrapped by an IV genearator (e.g. aead or genicv type algorithms) need special care. The userspace process hangs until it gets a timeout when we use crypto_alg_mod_lookup() to lookup these algorithms. So export the lookup functions for these algorithms and use them in crypto_add_alg(). Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
113 lines
3.0 KiB
C
113 lines
3.0 KiB
C
/*
|
|
* 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 crypto_skcipher_spawn {
|
|
struct crypto_spawn base;
|
|
};
|
|
|
|
extern const struct crypto_type crypto_givcipher_type;
|
|
|
|
static inline void crypto_set_skcipher_spawn(
|
|
struct crypto_skcipher_spawn *spawn, struct crypto_instance *inst)
|
|
{
|
|
crypto_set_spawn(&spawn->base, inst);
|
|
}
|
|
|
|
int crypto_grab_skcipher(struct crypto_skcipher_spawn *spawn, const char *name,
|
|
u32 type, u32 mask);
|
|
|
|
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);
|
|
}
|
|
|
|
static inline struct crypto_alg *crypto_skcipher_spawn_alg(
|
|
struct crypto_skcipher_spawn *spawn)
|
|
{
|
|
return spawn->base.alg;
|
|
}
|
|
|
|
static inline struct crypto_ablkcipher *crypto_spawn_skcipher(
|
|
struct crypto_skcipher_spawn *spawn)
|
|
{
|
|
return __crypto_ablkcipher_cast(
|
|
crypto_spawn_tfm(&spawn->base, crypto_skcipher_type(0),
|
|
crypto_skcipher_mask(0)));
|
|
}
|
|
|
|
int skcipher_null_givencrypt(struct skcipher_givcrypt_request *req);
|
|
int skcipher_null_givdecrypt(struct skcipher_givcrypt_request *req);
|
|
const char *crypto_default_geniv(const struct crypto_alg *alg);
|
|
|
|
struct crypto_instance *skcipher_geniv_alloc(struct crypto_template *tmpl,
|
|
struct rtattr **tb, u32 type,
|
|
u32 mask);
|
|
void skcipher_geniv_free(struct crypto_instance *inst);
|
|
int skcipher_geniv_init(struct crypto_tfm *tfm);
|
|
void skcipher_geniv_exit(struct crypto_tfm *tfm);
|
|
|
|
static inline struct crypto_ablkcipher *skcipher_geniv_cipher(
|
|
struct crypto_ablkcipher *geniv)
|
|
{
|
|
return crypto_ablkcipher_crt(geniv)->base;
|
|
}
|
|
|
|
static inline int skcipher_enqueue_givcrypt(
|
|
struct crypto_queue *queue, struct skcipher_givcrypt_request *request)
|
|
{
|
|
return ablkcipher_enqueue_request(queue, &request->creq);
|
|
}
|
|
|
|
static inline struct skcipher_givcrypt_request *skcipher_dequeue_givcrypt(
|
|
struct crypto_queue *queue)
|
|
{
|
|
return __crypto_dequeue_request(
|
|
queue, offsetof(struct skcipher_givcrypt_request, creq.base));
|
|
}
|
|
|
|
static inline void *skcipher_givcrypt_reqctx(
|
|
struct skcipher_givcrypt_request *req)
|
|
{
|
|
return ablkcipher_request_ctx(&req->creq);
|
|
}
|
|
|
|
static inline void ablkcipher_request_complete(struct ablkcipher_request *req,
|
|
int err)
|
|
{
|
|
req->base.complete(&req->base, err);
|
|
}
|
|
|
|
static inline void skcipher_givcrypt_complete(
|
|
struct skcipher_givcrypt_request *req, int err)
|
|
{
|
|
ablkcipher_request_complete(&req->creq, err);
|
|
}
|
|
|
|
static inline u32 ablkcipher_request_flags(struct ablkcipher_request *req)
|
|
{
|
|
return req->base.flags;
|
|
}
|
|
|
|
#endif /* _CRYPTO_INTERNAL_SKCIPHER_H */
|
|
|