The Design and Implementation of the FreeBSD Operating System, Second Edition
Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]

FreeBSD/Linux Kernel Cross Reference
sys/sys/random.h

Version: -  FREEBSD  -  FREEBSD-12-STABLE  -  FREEBSD-12-0  -  FREEBSD-11-STABLE  -  FREEBSD-11-2  -  FREEBSD-11-1  -  FREEBSD-11-0  -  FREEBSD-10-STABLE  -  FREEBSD-10-4  -  FREEBSD-10-3  -  FREEBSD-10-2  -  FREEBSD-10-1  -  FREEBSD-10-0  -  FREEBSD-9-STABLE  -  FREEBSD-9-3  -  FREEBSD-9-2  -  FREEBSD-9-1  -  FREEBSD-9-0  -  FREEBSD-8-STABLE  -  FREEBSD-8-4  -  FREEBSD-8-3  -  FREEBSD-8-2  -  FREEBSD-8-1  -  FREEBSD-8-0  -  FREEBSD-7-STABLE  -  FREEBSD-7-4  -  FREEBSD-7-3  -  FREEBSD-7-2  -  FREEBSD-7-1  -  FREEBSD-7-0  -  FREEBSD-6-STABLE  -  FREEBSD-6-4  -  FREEBSD-6-3  -  FREEBSD-6-2  -  FREEBSD-6-1  -  FREEBSD-6-0  -  FREEBSD-5-STABLE  -  FREEBSD-5-5  -  FREEBSD-5-4  -  FREEBSD-5-3  -  FREEBSD-5-2  -  FREEBSD-5-1  -  FREEBSD-5-0  -  FREEBSD-4-STABLE  -  FREEBSD-3-STABLE  -  FREEBSD22  -  linux-2.6  -  linux-2.4.22  -  MK83  -  MK84  -  PLAN9  -  DFBSD  -  NETBSD  -  NETBSD5  -  NETBSD4  -  NETBSD3  -  NETBSD20  -  OPENBSD  -  xnu-517  -  xnu-792  -  xnu-792.6.70  -  xnu-1228  -  xnu-1456.1.26  -  xnu-1699.24.8  -  xnu-2050.18.24  -  OPENSOLARIS  -  minix-3-1-1 
SearchContext: -  none  -  3  -  10 

    1 /*-
    2  * Copyright (c) 2000-2015 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: releng/11.2/sys/sys/random.h 331889 2018-04-02 21:48:29Z gonzo $
   27  */
   28 
   29 #ifndef _SYS_RANDOM_H_
   30 #define _SYS_RANDOM_H_
   31 
   32 #ifdef _KERNEL
   33 
   34 #include <sys/types.h>
   35 
   36 #if !defined(KLD_MODULE)
   37 #if defined(RANDOM_LOADABLE) && defined(RANDOM_YARROW)
   38 #error "Cannot define both RANDOM_LOADABLE and RANDOM_YARROW"
   39 #endif
   40 #endif
   41 
   42 struct uio;
   43 
   44 #if defined(DEV_RANDOM)
   45 u_int read_random(void *, u_int);
   46 int read_random_uio(struct uio *, bool);
   47 #else
   48 static __inline int
   49 read_random_uio(void *a __unused, u_int b __unused)
   50 {
   51         return (0);
   52 }
   53 static __inline u_int
   54 read_random(void *a __unused, u_int b __unused)
   55 {
   56         return (0);
   57 }
   58 #endif
   59 
   60 /*
   61  * Note: if you add or remove members of random_entropy_source, remember to also update the
   62  * KASSERT regarding what valid members are in random_harvest_internal(), and remember the
   63  * strings in the static array random_source_descr[] in random_harvestq.c.
   64  *
   65  * NOTE: complain loudly to markm@ or on the lists if this enum gets more than 32
   66  * distinct values (0-31)! ENTROPYSOURCE may be == 32, but not > 32.
   67  */
   68 enum random_entropy_source {
   69         RANDOM_START = 0,
   70         RANDOM_CACHED = 0,
   71         /* Environmental sources */
   72         RANDOM_ATTACH,
   73         RANDOM_KEYBOARD,
   74         RANDOM_MOUSE,
   75         RANDOM_NET_TUN,
   76         RANDOM_NET_ETHER,
   77         RANDOM_NET_NG,
   78         RANDOM_INTERRUPT,
   79         RANDOM_SWI,
   80         RANDOM_FS_ATIME,
   81         RANDOM_UMA,     /* Special!! UMA/SLAB Allocator */
   82         RANDOM_ENVIRONMENTAL_END = RANDOM_UMA,
   83         /* Fast hardware random-number sources from here on. */
   84         RANDOM_PURE_OCTEON,
   85         RANDOM_PURE_SAFE,
   86         RANDOM_PURE_GLXSB,
   87         RANDOM_PURE_UBSEC,
   88         RANDOM_PURE_HIFN,
   89         RANDOM_PURE_RDRAND,
   90         RANDOM_PURE_NEHEMIAH,
   91         RANDOM_PURE_RNDTEST,
   92         RANDOM_PURE_VIRTIO,
   93         RANDOM_PURE_BROADCOM,
   94         ENTROPYSOURCE
   95 };
   96 
   97 #define RANDOM_HARVEST_EVERYTHING_MASK ((1 << (RANDOM_ENVIRONMENTAL_END + 1)) - 1)
   98 
   99 #if defined(DEV_RANDOM)
  100 void random_harvest_queue(const void *, u_int, u_int, enum random_entropy_source);
  101 void random_harvest_fast(const void *, u_int, u_int, enum random_entropy_source);
  102 void random_harvest_direct(const void *, u_int, u_int, enum random_entropy_source);
  103 #else
  104 #define random_harvest_queue(a, b, c, d) do {} while (0)
  105 #define random_harvest_fast(a, b, c, d) do {} while (0)
  106 #define random_harvest_direct(a, b, c, d) do {} while (0)
  107 #endif
  108 
  109 #if defined(RANDOM_ENABLE_UMA)
  110 #define random_harvest_fast_uma(a, b, c, d)     random_harvest_fast(a, b, c, d)
  111 #else /* !defined(RANDOM_ENABLE_UMA) */
  112 #define random_harvest_fast_uma(a, b, c, d)     do {} while (0)
  113 #endif /* defined(RANDOM_ENABLE_UMA) */
  114 
  115 #endif /* _KERNEL */
  116 
  117 #endif /* _SYS_RANDOM_H_ */

Cache object: 6023bd9ec00a135f0e5824f2bd3407b3


[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]


This page is part of the FreeBSD/Linux Linux Kernel Cross-Reference, and was automatically generated using a modified version of the LXR engine.