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0e9cdcc514
Move RANDOM_FORTUNA_{NPOOLS,DEFPOOLSIZE} from fortuna.c to fortuna.h
and use RANDOM_FORTUNA_DEFPOOLSIZE in random_harvestq.c rather than
having a magic (albeit explained in a comment) number. The NPOOLS
value will be used in a later commit.
Reviewed by: cem
MFC after: 1 week
Sponsored by: Amazon
Differential Revision: https://reviews.freebsd.org/D46693
(cherry picked from commit 32fce09268ddd97efb4412529ba57293554c5985)
51 lines
2.5 KiB
C
51 lines
2.5 KiB
C
/*-
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* Copyright (c) 2013-2015 Mark R V Murray
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SYS_DEV_RANDOM_FORTUNA_H_INCLUDED
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#define SYS_DEV_RANDOM_FORTUNA_H_INCLUDED
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/* Defined in FS&K */
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#define RANDOM_FORTUNA_NPOOLS 32 /* The number of accumulation pools */
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#define RANDOM_FORTUNA_DEFPOOLSIZE 64 /* The default pool size/length for a (re)seed */
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#ifdef _KERNEL
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typedef struct mtx mtx_t;
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#define RANDOM_RESEED_INIT_LOCK(x) mtx_init(&fortuna_state.fs_mtx, "reseed mutex", NULL, MTX_DEF)
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#define RANDOM_RESEED_DEINIT_LOCK(x) mtx_destroy(&fortuna_state.fs_mtx)
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#define RANDOM_RESEED_LOCK(x) mtx_lock(&fortuna_state.fs_mtx)
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#define RANDOM_RESEED_UNLOCK(x) mtx_unlock(&fortuna_state.fs_mtx)
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#define RANDOM_RESEED_ASSERT_LOCK_OWNED(x) mtx_assert(&fortuna_state.fs_mtx, MA_OWNED)
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#define RANDOM_RESEED_ASSERT_LOCK_NOT_OWNED() mtx_assert(&fortuna_state.fs_mtx, MA_NOTOWNED)
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#else
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#define RANDOM_RESEED_INIT_LOCK(x) mtx_init(&fortuna_state.fs_mtx, mtx_plain)
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#define RANDOM_RESEED_DEINIT_LOCK(x) mtx_destroy(&fortuna_state.fs_mtx)
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#define RANDOM_RESEED_LOCK(x) mtx_lock(&fortuna_state.fs_mtx)
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#define RANDOM_RESEED_UNLOCK(x) mtx_unlock(&fortuna_state.fs_mtx)
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#define RANDOM_RESEED_ASSERT_LOCK_OWNED(x)
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#define RANDOM_RESEED_ASSERT_LOCK_NOT_OWNED()
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#endif
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#endif /* SYS_DEV_RANDOM_FORTUNA_H_INCLUDED */
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