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/*-
* Copyright (c) 2000 Mark R. V. Murray
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer
* in this position and unchanged.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* $FreeBSD$
*/
#ifndef _SYS_RANDOM_H_
#define _SYS_RANDOM_H_
#ifdef _KERNEL
int read_random(void *, int);
/*
* Note: if you add or remove members of esource, remember to also update the
* KASSERT regarding what valid members are in random_harvest_internal().
*/
enum esource {
RANDOM_START = 0,
RANDOM_WRITE = 0,
RANDOM_KEYBOARD,
RANDOM_MOUSE,
RANDOM_NET,
RANDOM_INTERRUPT,
RANDOM_PURE,
ENTROPYSOURCE
};
void random_harvest(void *, u_int, u_int, u_int, enum esource);
/* Allow the sysadmin to select the broad category of
* entropy types to harvest
*/
struct harvest_select {
int ethernet;
int point_to_point;
int interrupt;
int swi;
};
extern struct harvest_select harvest;
#endif /* _KERNEL */
#endif /* _SYS_RANDOM_H_ */
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