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1 | /* |
2 | * rngd_source.h -- Entropy source and conditioning | |
3 | * | |
4 | * Copyright (C) 2001 Philipp Rumpf | |
5 | * | |
6 | * This program is free software; you can redistribute it and/or modify | |
7 | * it under the terms of the GNU General Public License as published by | |
8 | * the Free Software Foundation; either version 2 of the License, or | |
9 | * (at your option) any later version. | |
d1b4c504 | 10 | * |
61af3de3 JG |
11 | * This program is distributed in the hope that it will be useful, |
12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | * GNU General Public License for more details. | |
15 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with this program; if not, write to the Free Software | |
d32709d1 | 18 | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA |
61af3de3 JG |
19 | */ |
20 | ||
21 | #ifndef RNGD_ENTSOURCE__H | |
22 | #define RNGD_ENTSOURCE__H | |
23 | ||
24 | #include "rng-tools-config.h" | |
25 | ||
26 | #include <unistd.h> | |
27 | #include <stdint.h> | |
28 | ||
29 | /* Logic and contexts */ | |
30 | extern fips_ctx_t fipsctx; /* Context for the FIPS tests */ | |
d1b4c504 | 31 | extern fips_ctx_t tpm_fipsctx; /* Context for the tpm FIPS tests */ |
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32 | |
33 | /* | |
34 | * Initialize entropy source and entropy conditioning | |
35 | * | |
36 | * sourcedev is the path to the entropy source | |
37 | */ | |
d1b4c504 | 38 | extern int init_entropy_source(struct rng *); |
2a014536 | 39 | extern int init_drng_entropy_source(struct rng *); |
d1b4c504 | 40 | extern int init_tpm_entropy_source(struct rng *); |
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41 | |
42 | /* Read data from the entropy source */ | |
d1b4c504 | 43 | extern int xread(void *buf, size_t size, struct rng *ent_src); |
2a014536 | 44 | extern int xread_drng(void *buf, size_t size, struct rng *ent_src); |
d1b4c504 | 45 | extern int xread_tpm(void *buf, size_t size, struct rng *ent_src); |
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46 | |
47 | #endif /* RNGD_ENTSOURCE__H */ |