1 /* SPDX-License-Identifier: GPL-2.0-or-later * <<
2 /* 1 /*
3 * RNG: Random Number Generator algorithms un 2 * RNG: Random Number Generator algorithms under the crypto API
4 * 3 *
5 * Copyright (c) 2008 Neil Horman <nhorman@tux 4 * Copyright (c) 2008 Neil Horman <nhorman@tuxdriver.com>
6 * Copyright (c) 2015 Herbert Xu <herbert@gond 5 * Copyright (c) 2015 Herbert Xu <herbert@gondor.apana.org.au>
>> 6 *
>> 7 * This program is free software; you can redistribute it and/or modify it
>> 8 * under the terms of the GNU General Public License as published by the Free
>> 9 * Software Foundation; either version 2 of the License, or (at your option)
>> 10 * any later version.
>> 11 *
7 */ 12 */
8 13
9 #ifndef _CRYPTO_INTERNAL_RNG_H 14 #ifndef _CRYPTO_INTERNAL_RNG_H
10 #define _CRYPTO_INTERNAL_RNG_H 15 #define _CRYPTO_INTERNAL_RNG_H
11 16
12 #include <crypto/algapi.h> 17 #include <crypto/algapi.h>
13 #include <crypto/rng.h> 18 #include <crypto/rng.h>
14 19
15 int crypto_register_rng(struct rng_alg *alg); 20 int crypto_register_rng(struct rng_alg *alg);
16 void crypto_unregister_rng(struct rng_alg *alg 21 void crypto_unregister_rng(struct rng_alg *alg);
17 int crypto_register_rngs(struct rng_alg *algs, 22 int crypto_register_rngs(struct rng_alg *algs, int count);
18 void crypto_unregister_rngs(struct rng_alg *al 23 void crypto_unregister_rngs(struct rng_alg *algs, int count);
19 24
20 #if defined(CONFIG_CRYPTO_RNG) || defined(CONF 25 #if defined(CONFIG_CRYPTO_RNG) || defined(CONFIG_CRYPTO_RNG_MODULE)
21 int crypto_del_default_rng(void); 26 int crypto_del_default_rng(void);
22 #else 27 #else
23 static inline int crypto_del_default_rng(void) 28 static inline int crypto_del_default_rng(void)
24 { 29 {
25 return 0; 30 return 0;
26 } 31 }
27 #endif 32 #endif
28 33
29 static inline void *crypto_rng_ctx(struct cryp 34 static inline void *crypto_rng_ctx(struct crypto_rng *tfm)
30 { 35 {
31 return crypto_tfm_ctx(&tfm->base); 36 return crypto_tfm_ctx(&tfm->base);
32 } 37 }
33 38
34 static inline void crypto_rng_set_entropy(stru 39 static inline void crypto_rng_set_entropy(struct crypto_rng *tfm,
35 cons 40 const u8 *data, unsigned int len)
36 { 41 {
37 crypto_rng_alg(tfm)->set_ent(tfm, data 42 crypto_rng_alg(tfm)->set_ent(tfm, data, len);
38 } 43 }
39 44
40 #endif 45 #endif
41 46
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