1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
|
/*-
* Copyright (c) 2015 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.
*
* $FreeBSD$
*/
/*-
* This is a skeleton for folks who wish to build a loadable module
* containing an alternative entropy-processing algorithm for random(4).
*
* The functions below should be completed with the appropriate code,
* and the nearby yarrow.c and fortuna.c may be consulted for examples
* of working code.
*
* The author is willing to provide reasonable help to those wishing to
* write such a module for themselves. Please use the markm@ FreeBSD
* email address, and ensure that you are developing this on a suitably
* supported branch (This is currently 11-CURRENT, and will be no
* older than 11-STABLE in the future).
*/
#ifndef SYS_DEV_RANDOM_OTHER_H_INCLUDED
#define SYS_DEV_RANDOM_OTHER_H_INCLUDED
#ifdef _KERNEL
typedef struct mtx mtx_t;
#define RANDOM_RESEED_INIT_LOCK(x) mtx_init(&other_mtx, "reseed mutex", NULL, MTX_DEF)
#define RANDOM_RESEED_DEINIT_LOCK(x) mtx_destroy(&other_mtx)
#define RANDOM_RESEED_LOCK(x) mtx_lock(&other_mtx)
#define RANDOM_RESEED_UNLOCK(x) mtx_unlock(&other_mtx)
#define RANDOM_RESEED_ASSERT_LOCK_OWNED(x) mtx_assert(&other_mtx, MA_OWNED)
#else
#define RANDOM_RESEED_INIT_LOCK(x) mtx_init(&other_mtx, mtx_plain)
#define RANDOM_RESEED_DEINIT_LOCK(x) mtx_destroy(&other_mtx)
#define RANDOM_RESEED_LOCK(x) mtx_lock(&other_mtx)
#define RANDOM_RESEED_UNLOCK(x) mtx_unlock(&other_mtx)
#define RANDOM_RESEED_ASSERT_LOCK_OWNED(x)
#endif
#endif /* SYS_DEV_RANDOM_OTHER_H_INCLUDED */
|
