1 | /* $NetBSD: rnd.h,v 1.49 2015/04/14 12:51:30 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 _SYS_RND_H_ |
34 | #define _SYS_RND_H_ |
35 | |
36 | #ifdef _KERNEL |
37 | |
38 | #include <sys/types.h> |
39 | |
40 | struct file; |
41 | |
42 | #define RND_DEV_RANDOM 0 /* minor for blocking until unpredictable */ |
43 | #define RND_DEV_URANDOM 1 /* minor for randomly generating data */ |
44 | |
45 | void rnd_init(void); |
46 | void rnd_init_softint(void); |
47 | void rnd_seed(void *, size_t); |
48 | int rnd_system_ioctl(struct file *, u_long, void *); |
49 | |
50 | extern int rnd_initial_entropy; |
51 | |
52 | #endif /* _KERNEL */ |
53 | |
54 | #endif /* !_SYS_RND_H_ */ |
55 | |