/*
 *  Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC.
 *  Copyright (C) 2007 The Regents of the University of California.
 *  Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER).
 *  Written by Brian Behlendorf <behlendorf1@llnl.gov>.
 *  UCRL-CODE-235197
 *
 *  This file is part of the SPL, Solaris Porting Layer.
 *
 *  The SPL 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.
 *
 *  The SPL 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 the SPL.  If not, see <http://www.gnu.org/licenses/>.
 */

#ifndef _SPL_RANDOM_H
#define	_SPL_RANDOM_H

#include <linux/module.h>
#include <linux/random.h>

static __inline__ int
random_get_bytes(uint8_t *ptr, size_t len)
{
	get_random_bytes((void *)ptr, (int)len);
	return (0);
}

extern int random_get_pseudo_bytes(uint8_t *ptr, size_t len);

static __inline__ uint32_t
random_in_range(uint32_t range)
{
	uint32_t r;

	ASSERT(range != 0);

	if (range == 1)
		return (0);

	(void) random_get_pseudo_bytes((uint8_t *)&r, sizeof (r));

	return (r % range);
}

#endif	/* _SPL_RANDOM_H */