1 /*-
2 * Copyright (c) 2000-2004 Mark R V Murray
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer
10 * in this position and unchanged.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 *
26 * $FreeBSD: releng/9.0/sys/dev/random/randomdev.h 153575 2005-12-20 21:41:52Z ps $
27 */
28
29 /* This header contains only those definitions that are global
30 * and non algorithm-specific for the entropy processor
31 */
32
33 typedef void random_init_func_t(void);
34 typedef void random_deinit_func_t(void);
35 typedef int random_block_func_t(int);
36 typedef int random_read_func_t(void *, int);
37 typedef void random_write_func_t(void *, int);
38 typedef int random_poll_func_t(int, struct thread *);
39 typedef void random_reseed_func_t(void);
40
41 struct random_systat {
42 struct selinfo rsel;
43 const char *ident;
44 int seeded;
45 random_init_func_t *init;
46 random_deinit_func_t *deinit;
47 random_block_func_t *block;
48 random_read_func_t *read;
49 random_write_func_t *write;
50 random_poll_func_t *poll;
51 random_reseed_func_t *reseed;
52 };
53
54 extern struct random_systat random_systat;
55
56 extern void random_ident_hardware(struct random_systat *);
57 extern void random_null_func(void);
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