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1/* SPDX-License-Identifier: GPL-2.0-or-later */2/*3 * RNG: Random Number Generator algorithms under the crypto API4 *5 * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com>6 * Copyright (c) 2015 Herbert Xu <herbert@gondor.apana.org.au>7 */8 9#ifndef _CRYPTO_INTERNAL_RNG_H10#define _CRYPTO_INTERNAL_RNG_H11 12#include <crypto/algapi.h>13#include <crypto/rng.h>14 15int crypto_register_rng(struct rng_alg *alg);16void crypto_unregister_rng(struct rng_alg *alg);17int crypto_register_rngs(struct rng_alg *algs, int count);18void crypto_unregister_rngs(struct rng_alg *algs, int count);19 20#if defined(CONFIG_CRYPTO_RNG) || defined(CONFIG_CRYPTO_RNG_MODULE)21int crypto_del_default_rng(void);22#else23static inline int crypto_del_default_rng(void)24{25 return 0;26}27#endif28 29static inline void *crypto_rng_ctx(struct crypto_rng *tfm)30{31 return crypto_tfm_ctx(&tfm->base);32}33 34static inline void crypto_rng_set_entropy(struct crypto_rng *tfm,35 const u8 *data, unsigned int len)36{37 crypto_rng_alg(tfm)->set_ent(tfm, data, len);38}39 40#endif41