reactos/dll/appcompat/apphelp/shimeng.h

   1 /*
   2  * Copyright 2017 Mark Jansen (mark.jansen@reactos.org)
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 #ifndef SHIMENG_H
  20 #define SHIMENG_H
  21
  22 /* ReactOS specific */
  23
  24 /* Structure that allows dynamic growing.
  25    Be aware, the data may move! */
  26 typedef struct _ARRAY
  27 {
  28     PVOID Data__;
  29     DWORD Size__;
  30     DWORD MaxSize__;
  31     DWORD ItemSize__;
  32 } ARRAY, *PARRAY;
  33
  34 typedef struct _SHIMINFO *PSHIMINFO;
  35 typedef struct _SHIMMODULE *PSHIMMODULE;
  36
  37 /* Shims know this structure as HOOKAPI, with 2 reserved members (the last 2). */
  38 typedef struct tagHOOKAPIEX
  39 {
  40     PCSTR LibraryName;
  41     PCSTR FunctionName;
  42     PVOID ReplacementFunction;
  43     PVOID OriginalFunction;
  44     PSHIMINFO pShimInfo;
  45     PVOID Unused;
  46 } HOOKAPIEX, *PHOOKAPIEX;
  47
  48 C_ASSERT(sizeof(HOOKAPIEX) == sizeof(HOOKAPI));
  49 C_ASSERT(offsetof(HOOKAPIEX, pShimInfo) == offsetof(HOOKAPI, Reserved));
  50
  51
  52 typedef struct _SHIMINFO
  53 {
  54     PHOOKAPIEX pHookApi;
  55     DWORD dwHookCount;
  56     PSHIMMODULE pShimModule;
  57 } SHIMINFO, *PSHIMINFO;
  58
  59 typedef struct _SHIMMODULE
  60 {
  61     UNICODE_STRING Name;
  62     PVOID BaseAddress;
  63
  64     PHOOKAPIEX (WINAPI* pGetHookAPIs)(LPCSTR szCommandLine, LPCWSTR wszShimName, PDWORD pdwHookCount);
  65     BOOL (WINAPI* pNotifyShims)(DWORD fdwReason, PVOID ptr);
  66
  67     ARRAY EnabledShims;     /* PSHIMINFO */
  68 } SHIMMODULE, *PSHIMMODULE;
  69
  70 typedef struct _HOOKMODULEINFO
  71 {
  72     UNICODE_STRING Name;
  73     PVOID BaseAddress;
  74
  75     ARRAY HookApis;         /* PHOOKAPIEX */
  76
  77 } HOOKMODULEINFO, *PHOOKMODULEINFO;
  78
  79
  80 #if SDBAPI_DEBUG_ALLOC
  81
  82 LPVOID SdbpAlloc(SIZE_T size, int line, const char* file);
  83 LPVOID SdbpReAlloc(LPVOID mem, SIZE_T size, SIZE_T oldSize, int line, const char* file);
  84 VOID SdbpFree(LPVOID mem, int line, const char* file);
  85
  86 #define SeiAlloc(size) SdbpAlloc(size, __LINE__, __FILE__)
  87 #define SeiReAlloc(mem, size, oldSize) SdbpReAlloc(mem, size, oldSize, __LINE__, __FILE__)
  88 #define SeiFree(mem) SdbpFree(mem, __LINE__, __FILE__)
  89
  90 #else
  91
  92 LPVOID SdbpAlloc(SIZE_T size);
  93 LPVOID SdbpReAlloc(LPVOID mem, SIZE_T size, SIZE_T oldSize);
  94 VOID SdbpFree(LPVOID mem);
  95
  96 #define SeiAlloc(size) SdbpAlloc(size)
  97 #define SeiReAlloc(mem, size, oldSize) SdbpReAlloc(mem, size, oldSize)
  98 #define SeiFree(mem) SdbpFree(mem)
  99
 100 #endif
 101
 102 #endif // SHIMENG_H