bsd/dev/random/YarrowCoreLib/src/smf.h

   1 /*
   2  * Copyright (c) 1999, 2000-2001 Apple Computer, Inc. All rights reserved.
   3  *
   4  * @APPLE_LICENSE_HEADER_START@
   5  *
   6  * The contents of this file constitute Original Code as defined in and
   7  * are subject to the Apple Public Source License Version 1.1 (the
   8  * "License").  You may not use this file except in compliance with the
   9  * License.  Please obtain a copy of the License at
  10  * http://www.apple.com/publicsource and read it before using this file.
  11  *
  12  * This Original Code and all software distributed under the License are
  13  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
  14  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
  15  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
  17  * License for the specific language governing rights and limitations
  18  * under the License.
  19  *
  20  * @APPLE_LICENSE_HEADER_END@
  21  */
  22
  23 /*
  24         File:           smf.h
  25
  26         Contains:       Secure malloc/free API.
  27
  28         Written by:     Doug Mitchell
  29
  30         Copyright: (c) 2000 by Apple Computer, Inc., all rights reserved.
  31
  32         Change History (most recent first):
  33
  34                 02/10/00        dpm             Created, based on Counterpane's Yarrow code.
  35
  36 */
  37
  38 #ifndef _YARROW_SMF_H_
  39 #define _YARROW_SMF_H_
  40
  41 #if defined(__cplusplus)
  42 extern "C" {
  43 #endif
  44
  45 /* smf.h */
  46
  47         /*
  48         Header file for secure malloc and free routines used by the Counterpane
  49         PRNG. Use this code to set up a memory-mapped file out of the system
  50         paging file, allocate and free memory from it, and then return
  51         the memory to the system registry after having securely overwritten it.
  52         Details of the secure overwrite can be found in Gutmann 1996 (Usenix).
  53         Trying to explain it here will cause my head to begin to hurt.
  54         Ari Benbasat (pigsfly@unixg.ubc.ca)
  55         */
  56
  57
  58
  59 #if             defined(macintosh) || defined(__APPLE__)
  60 #include "macOnly.h"
  61 #define MMPTR   void *
  62
  63 #ifndef SMFAPI
  64 #define SMFAPI
  65 #endif
  66
  67 #else   /* original Yarrow */
  68
  69 /* Declare HOOKSAPI as __declspec(dllexport) before
  70    including this file in the actual DLL */
  71 #ifndef SMFAPI
  72 #define SMFAPI __declspec(dllimport)
  73 #endif
  74 #define MMPTR   BYTE
  75
  76 #endif /* macintosh */
  77
  78
  79 #define MM_NULL 0
  80
  81 /* Function forward declarations */
  82 SMFAPI void mmInit();
  83 SMFAPI MMPTR mmMalloc(DWORD request);
  84 SMFAPI void mmFree(MMPTR ptrnum);
  85 SMFAPI LPVOID mmGetPtr(MMPTR ptrnum);
  86 SMFAPI void mmReturnPtr(MMPTR ptrnum);
  87 #if     0
  88 SMFAPI void mmFreePtr(LPVOID ptr);
  89 #endif
  90
  91 #if defined(__cplusplus)
  92 }
  93 #endif
  94
  95 #endif  /* _YARROW_SMF_H_*/