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Commit e33cf2c5 authored by Herbert Xu's avatar Herbert Xu
Browse files

crypto: krng - Convert to new rng interface 



This patch ocnverts the KRNG implementation to the new low-level
rng interface.

Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent e7c2422a

crypto/krng.c

+14 −19
Original line number Diff line number Diff line
@@ -16,31 +16,27 @@ 
#include <linux/module.h>

#include <linux/random.h>



static int krng_get_random(struct crypto_rng *tfm, u8 *rdata, unsigned int dlen)

static int krng_generate(struct crypto_rng *tfm,

			 const u8 *src, unsigned int slen,

			 u8 *rdata, unsigned int dlen)

{

	get_random_bytes(rdata, dlen);

	return 0;

}



static int krng_reset(struct crypto_rng *tfm, u8 *seed, unsigned int slen)

static int krng_seed(struct crypto_rng *tfm, const u8 *seed, unsigned int slen)

{

	return 0;

}



static struct crypto_alg krng_alg = {

static struct rng_alg krng_alg = {

	.generate		= krng_generate,

	.seed			= krng_seed,

	.base			=	{

		.cra_name		= "stdrng",

		.cra_driver_name	= "krng",

		.cra_priority		= 200,

	.cra_flags		= CRYPTO_ALG_TYPE_RNG,

	.cra_ctxsize		= 0,

	.cra_type		= &crypto_rng_type,

		.cra_module		= THIS_MODULE,

	.cra_u			= {

		.rng = {

			.rng_make_random	= krng_get_random,

			.rng_reset		= krng_reset,

			.seedsize		= 0,

		}

	}

};
@@ -48,13 +44,12 @@ static struct crypto_alg krng_alg = { 
/* Module initalization */

static int __init krng_mod_init(void)

{

	return crypto_register_alg(&krng_alg);

	return crypto_register_rng(&krng_alg);

}



static void __exit krng_mod_fini(void)

{

	crypto_unregister_alg(&krng_alg);

	return;

	crypto_unregister_rng(&krng_alg);

}



module_init(krng_mod_init);