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* rngd_linux.h -- Entropy sink for the Linux Kernel (/dev/random)
* 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
* 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., 51 Franklin Street, Suite 500, Boston, MA 02110-1335 USA
#ifndef RNGD_LINUX__H
#define RNGD_LINUX__H
#include "rng-tools-config.h"
#include <unistd.h>
#include <stdint.h>
/* The default watermark level for this platform */
extern int default_watermark(void);
* Initialize the interface to the Linux Kernel
* entropy pool (through /dev/random)
* randomdev is the path to the random device
extern void init_kernel_rng(const char* randomdev);
/* Send entropy to the kernel */
extern void random_add_entropy(void *buf, size_t size);
/* Sleep until the kernel is hungry for entropy */
extern void random_sleep(void);
#endif /* RNGD_LINUX__H */