xref: /freebsd/sys/dev/random/unit_test.h (revision ff0ba87247820afbdfdc1b307c803f7923d0e4d3)
1 /*-
2  * Copyright (c) 2013 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  * $FreeBSD$
27  */
28 
29 
30 #ifndef UNIT_TEST_H_INCLUDED
31 #define UNIT_TEST_H_INCLUDED
32 
33 void random_adaptor_unblock(void);
34 
35 static __inline uint64_t
36 get_cyclecount(void)
37 {
38 
39 	/* Shaddup! */
40 	return (4ULL);
41 }
42 
43 // #define PAGE_SIZE	4096
44 #define HARVESTSIZE	16
45 
46 enum random_entropy_source {
47 	RANDOM_START = 0,
48 	RANDOM_CACHED = 0,
49 	ENTROPYSOURCE = 32
50 };
51 
52 struct harvest_event {
53 	uintmax_t			he_somecounter;		/* fast counter for clock jitter */
54 	uint8_t				he_entropy[HARVESTSIZE];/* some harvested entropy */
55 	u_int				he_size;		/* harvested entropy byte count */
56 	u_int				he_bits;		/* stats about the entropy */
57 	u_int				he_destination;		/* destination pool of this entropy */
58 	enum random_entropy_source	he_source;		/* origin of the entropy */
59 	void *				he_next;		/* next item on the list */
60 };
61 
62 struct sysctl_ctx_list;
63 
64 #define	CTASSERT(x)	_Static_assert(x, "compile-time assertion failed")
65 #define	KASSERT(exp,msg) do {	\
66 	if (!(exp)) {		\
67 		printf msg;	\
68 		exit(0);	\
69 	}			\
70 } while (0)
71 
72 #endif /* UNIT_TEST_H_INCLUDED */
73