| 1 | /* SPDX-License-Identifier: GPL-2.0-or-later */ |
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| 2 | /* |
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| 3 | * RNG: Random Number Generator algorithms under the crypto API |
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| 4 | * |
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| 5 | * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com> |
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| 6 | * Copyright (c) 2015 Herbert Xu <herbert@gondor.apana.org.au> |
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| 7 | */ |
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| 8 | |
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| 9 | #ifndef _CRYPTO_INTERNAL_RNG_H |
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| 10 | #define _CRYPTO_INTERNAL_RNG_H |
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| 11 | |
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| 12 | #include <crypto/algapi.h> |
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| 13 | #include <crypto/rng.h> |
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| 14 | |
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| 15 | int crypto_register_rng(struct rng_alg *alg); |
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| 16 | void crypto_unregister_rng(struct rng_alg *alg); |
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| 17 | int crypto_register_rngs(struct rng_alg *algs, int count); |
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| 18 | void crypto_unregister_rngs(struct rng_alg *algs, int count); |
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| 19 | |
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| 20 | #if defined(CONFIG_CRYPTO_RNG) || defined(CONFIG_CRYPTO_RNG_MODULE) |
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| 21 | int crypto_del_default_rng(void); |
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| 22 | #else |
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| 23 | static inline int crypto_del_default_rng(void) |
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| 24 | { |
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| 25 | return 0; |
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| 26 | } |
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| 27 | #endif |
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| 28 | |
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| 29 | static inline void *crypto_rng_ctx(struct crypto_rng *tfm) |
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| 30 | { |
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| 31 | return crypto_tfm_ctx(tfm: &tfm->base); |
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| 32 | } |
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| 33 | |
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| 34 | static inline void crypto_rng_set_entropy(struct crypto_rng *tfm, |
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| 35 | const u8 *data, unsigned int len) |
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| 36 | { |
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| 37 | crypto_rng_alg(tfm)->set_ent(tfm, data, len); |
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| 38 | } |
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| 39 | |
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| 40 | #endif |
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| 41 | |
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