71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/* $NetBSD: rnd_private.h,v 1.11 2015/04/14 13:14:20 riastradh Exp $ */
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/*-
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* Copyright (c) 1997 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Michael Graff <explorer@flame.org>. This code uses ideas and
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* algorithms from the Linux driver written by Ted Ts'o.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef _DEV_RNDPRIVATE_H
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#define _DEV_RNDPRIVATE_H
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#include <sys/types.h>
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#include <sys/mutex.h>
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#include <sys/queue.h>
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#include <sys/rndio.h>
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#include <sys/rndpool.h>
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#include <sys/rndsource.h>
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/*
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* Number of bytes returned per hash. This value is used in both
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* rnd.c and rndpool.c to decide when enough entropy exists to do a
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* hash to extract it.
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*/
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#define RND_ENTROPY_THRESHOLD 10
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bool rnd_extract(void *, size_t);
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bool rnd_tryextract(void *, size_t);
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void rnd_getmore(size_t);
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/*
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* Flag indicating rnd_init has run.
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*/
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extern int rnd_ready;
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/*
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* Debugging flags.
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*/
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#ifdef RND_DEBUG
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extern int rnd_debug;
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#define RND_DEBUG_WRITE 0x0001
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#define RND_DEBUG_READ 0x0002
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#define RND_DEBUG_IOCTL 0x0004
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#define RND_DEBUG_SNOOZE 0x0008
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#endif
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#endif /* _DEV_RNDPRIVATE_H */
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