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crypto: krng - Convert to new rng interface 

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

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Herbert Xu 2015-04-21 10:46:45 +08:00
parent e7c2422a83
commit e33cf2c5aa
1 changed files with 14 additions and 19 deletions
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33
crypto/krng.c
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@ -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 = {
.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,
}
static struct rng_alg krng_alg = {
.generate = krng_generate,
.seed = krng_seed,
.base = {
.cra_name = "stdrng",
.cra_driver_name = "krng",
.cra_priority = 200,
.cra_module = THIS_MODULE,
}
};
@ -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);