1 | /* $NetBSD: rnd_private.h,v 1.11 2015/04/14 13:14:20 riastradh Exp $ */ |
2 | |
3 | /*- |
4 | * Copyright (c) 1997 The NetBSD Foundation, Inc. |
5 | * All rights reserved. |
6 | * |
7 | * This code is derived from software contributed to The NetBSD Foundation |
8 | * by Michael Graff <explorer@flame.org>. This code uses ideas and |
9 | * algorithms from the Linux driver written by Ted Ts'o. |
10 | * |
11 | * Redistribution and use in source and binary forms, with or without |
12 | * modification, are permitted provided that the following conditions |
13 | * are met: |
14 | * 1. Redistributions of source code must retain the above copyright |
15 | * notice, this list of conditions and the following disclaimer. |
16 | * 2. Redistributions in binary form must reproduce the above copyright |
17 | * notice, this list of conditions and the following disclaimer in the |
18 | * documentation and/or other materials provided with the distribution. |
19 | * |
20 | * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS |
21 | * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED |
22 | * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
23 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS |
24 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
25 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
26 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
29 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
30 | * POSSIBILITY OF SUCH DAMAGE. |
31 | */ |
32 | |
33 | #ifndef _DEV_RNDPRIVATE_H |
34 | #define _DEV_RNDPRIVATE_H |
35 | |
36 | #include <sys/types.h> |
37 | #include <sys/mutex.h> |
38 | #include <sys/queue.h> |
39 | #include <sys/rndio.h> |
40 | #include <sys/rndpool.h> |
41 | #include <sys/rndsource.h> |
42 | |
43 | /* |
44 | * Number of bytes returned per hash. This value is used in both |
45 | * rnd.c and rndpool.c to decide when enough entropy exists to do a |
46 | * hash to extract it. |
47 | */ |
48 | #define RND_ENTROPY_THRESHOLD 10 |
49 | |
50 | bool (void *, size_t); |
51 | bool (void *, size_t); |
52 | void rnd_getmore(size_t); |
53 | |
54 | /* |
55 | * Flag indicating rnd_init has run. |
56 | */ |
57 | extern int rnd_ready; |
58 | |
59 | /* |
60 | * Debugging flags. |
61 | */ |
62 | #ifdef RND_DEBUG |
63 | extern int rnd_debug; |
64 | #define RND_DEBUG_WRITE 0x0001 |
65 | #define RND_DEBUG_READ 0x0002 |
66 | #define RND_DEBUG_IOCTL 0x0004 |
67 | #define RND_DEBUG_SNOOZE 0x0008 |
68 | #endif |
69 | |
70 | #endif /* _DEV_RNDPRIVATE_H */ |
71 | |