xref: /freebsd/sys/dev/random/fortuna.h (revision 7ef62cebc2f965b0f640263e179276928885e33d)
1 /*-
2  * Copyright (c) 2013-2015 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 #ifndef SYS_DEV_RANDOM_FORTUNA_H_INCLUDED
30 #define	SYS_DEV_RANDOM_FORTUNA_H_INCLUDED
31 
32 #ifdef _KERNEL
33 typedef struct mtx mtx_t;
34 #define	RANDOM_RESEED_INIT_LOCK(x)		mtx_init(&fortuna_state.fs_mtx, "reseed mutex", NULL, MTX_DEF)
35 #define	RANDOM_RESEED_DEINIT_LOCK(x)		mtx_destroy(&fortuna_state.fs_mtx)
36 #define	RANDOM_RESEED_LOCK(x)			mtx_lock(&fortuna_state.fs_mtx)
37 #define	RANDOM_RESEED_UNLOCK(x)			mtx_unlock(&fortuna_state.fs_mtx)
38 #define	RANDOM_RESEED_ASSERT_LOCK_OWNED(x)	mtx_assert(&fortuna_state.fs_mtx, MA_OWNED)
39 #define	RANDOM_RESEED_ASSERT_LOCK_NOT_OWNED()	mtx_assert(&fortuna_state.fs_mtx, MA_NOTOWNED)
40 #else
41 #define	RANDOM_RESEED_INIT_LOCK(x)		mtx_init(&fortuna_state.fs_mtx, mtx_plain)
42 #define	RANDOM_RESEED_DEINIT_LOCK(x)		mtx_destroy(&fortuna_state.fs_mtx)
43 #define	RANDOM_RESEED_LOCK(x)			mtx_lock(&fortuna_state.fs_mtx)
44 #define	RANDOM_RESEED_UNLOCK(x)			mtx_unlock(&fortuna_state.fs_mtx)
45 #define	RANDOM_RESEED_ASSERT_LOCK_OWNED(x)
46 #define	RANDOM_RESEED_ASSERT_LOCK_NOT_OWNED()
47 #endif
48 
49 #endif /* SYS_DEV_RANDOM_FORTUNA_H_INCLUDED */
50