b9887f5053
o Allow this to work with "nodevice random" by fixing where the MALLOC pool is defined. o Fix the explicit reseed code. This was correct as submitted, but in the project branch doesn't need to set the "seeded" bit as this is done correctly in the "unblock" function. o Remove some debug ifdeffing. o Adjust comments.
72 lines
2.6 KiB
C
72 lines
2.6 KiB
C
/*-
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* Copyright (c) 2013 Arthur Mesh <arthurmesh@gmail.com>
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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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* $FreeBSD$
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*/
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#ifndef __RANDOM_ADAPTORS_H__
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#define __RANDOM_ADAPTORS_H__
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#include <sys/eventhandler.h>
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MALLOC_DECLARE(M_ENTROPY);
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struct random_adaptors {
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LIST_ENTRY(random_adaptors) entries; /* list of providers */
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const char *name; /* name of random adaptor */
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struct random_adaptor *rsp;
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};
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struct random_adaptor *random_adaptor_get(const char *);
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int random_adaptor_register(const char *, struct random_adaptor *);
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void random_adaptor_choose(struct random_adaptor **);
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extern struct random_adaptor *random_adaptor;
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/*
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* random_adaptor's should be registered prior to
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* random module (SI_SUB_DRIVERS/SI_ORDER_MIDDLE)
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*/
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#define RANDOM_ADAPTOR_MODULE(name, modevent, ver) \
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static moduledata_t name##_mod = { \
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#name, \
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modevent, \
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0 \
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}; \
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DECLARE_MODULE(name, name##_mod, SI_SUB_DRIVERS, \
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SI_ORDER_SECOND); \
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MODULE_VERSION(name, ver); \
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MODULE_DEPEND(name, random, 1, 1, 1);
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typedef void (*random_adaptor_attach_hook)(void *, struct random_adaptor *);
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EVENTHANDLER_DECLARE(random_adaptor_attach, random_adaptor_attach_hook);
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/* kern.random sysctls */
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#ifdef SYSCTL_DECL /* from sysctl.h */
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SYSCTL_DECL(_kern_random);
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#endif /* SYSCTL_DECL */
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#endif /* __RANDOM_ADAPTORS_H__ */
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