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/*
* rngd_source.h -- Entropy source and conditioning
*
* Copyright (C) 2001 Philipp Rumpf
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef RNGD_ENTSOURCE__H
#define RNGD_ENTSOURCE__H
#include "rng-tools-config.h"
#include <unistd.h>
#include <stdint.h>
/* Logic and contexts */
extern fips_ctx_t fipsctx; /* Context for the FIPS tests */
extern fips_ctx_t tpm_fipsctx; /* Context for the tpm FIPS tests */
/*
* Initialize entropy source and entropy conditioning
*
* sourcedev is the path to the entropy source
*/
extern int init_entropy_source(struct rng *);
extern int init_drng_entropy_source(struct rng *);
extern int init_tpm_entropy_source(struct rng *);
/* Read data from the entropy source */
extern int xread(void *buf, size_t size, struct rng *ent_src);
extern int xread_drng(void *buf, size_t size, struct rng *ent_src);
extern int xread_tpm(void *buf, size_t size, struct rng *ent_src);
#endif /* RNGD_ENTSOURCE__H */