src/WINNT/afsapplib/al_dynlink.cpp

   1 /*
   2  * Copyright 2000, International Business Machines Corporation and others.
   3  * All Rights Reserved.
   4  *
   5  * This software has been released under the terms of the IBM Public
   6  * License.  For details, see the LICENSE file in the top-level source
   7  * directory or online at http://www.openafs.org/dl/license10.html
   8  */
   9
  10 #include <winsock2.h>
  11 #include <ws2tcpip.h>
  12
  13 extern "C" {
  14 #include <afs/param.h>
  15 #include <afs/stds.h>
  16 }
  17
  18 #include <WINNT/afsapplib.h>
  19 #include "al_dynlink.h"
  20
  21
  22 /*
  23  * LIBRARIES __________________________________________________________________
  24  *
  25  */
  26
  27 #define cszLIBRARY_UTIL        TEXT("AfsAdminUtil.dll")
  28 #define cszLIBRARY_KAS         TEXT("AfsKasAdmin.dll")
  29 #define cszLIBRARY_CLIENT      TEXT("AfsClientAdmin.dll")
  30
  31
  32 /*
  33  * ADMIN ______________________________________________________________________
  34  *
  35  */
  36
  37 static size_t g_cReqUtilLibrary = 0;
  38 static HINSTANCE g_hiUtilLibrary = NULL;
  39
  40 util_AdminErrorCodeTranslate_t util_AdminErrorCodeTranslateP = NULL;
  41
  42
  43 BOOL OpenUtilLibrary (ULONG *pStatus)
  44 {
  45    BOOL rc = FALSE;
  46    ULONG status = ERROR_DLL_NOT_FOUND;
  47
  48    if ((++g_cReqUtilLibrary) == 1)
  49       {
  50       if ( ((g_hiUtilLibrary = LoadLibrary (cszLIBRARY_UTIL)) == NULL) ||
  51            ((util_AdminErrorCodeTranslateP = (util_AdminErrorCodeTranslate_t)GetProcAddress (g_hiUtilLibrary, "util_AdminErrorCodeTranslate")) == NULL) )
  52          {
  53          status = GetLastError();
  54          CloseUtilLibrary();
  55          }
  56       }
  57    if (g_hiUtilLibrary)
  58       {
  59       rc = TRUE;
  60       }
  61
  62    if (pStatus)
  63       *pStatus = status;
  64    return rc;
  65 }
  66
  67
  68 void CloseUtilLibrary (void)
  69 {
  70    if ((--g_cReqUtilLibrary) == 0)
  71       {
  72       if (g_hiUtilLibrary)
  73          FreeLibrary (g_hiUtilLibrary);
  74       g_hiUtilLibrary = NULL;
  75       }
  76 }
  77
  78
  79 /*
  80  * KAS ________________________________________________________________________
  81  *
  82  */
  83
  84 static size_t g_cReqKasLibrary = 0;
  85 static HINSTANCE g_hiKasLibrary = NULL;
  86
  87 kas_PrincipalGetBegin_t kas_PrincipalGetBeginP = NULL;
  88 kas_PrincipalGetNext_t kas_PrincipalGetNextP = NULL;
  89 kas_PrincipalGetDone_t kas_PrincipalGetDoneP = NULL;
  90 kas_PrincipalGet_t kas_PrincipalGetP = NULL;
  91
  92
  93 BOOL OpenKasLibrary (ULONG *pStatus)
  94 {
  95    BOOL rc = FALSE;
  96    ULONG status = ERROR_DLL_NOT_FOUND;
  97
  98    if ((++g_cReqKasLibrary) == 1)
  99       {
 100       if ( ((g_hiKasLibrary = LoadLibrary (cszLIBRARY_KAS)) == NULL) ||
 101            ((kas_PrincipalGetBeginP = (kas_PrincipalGetBegin_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGetBegin")) == NULL) ||
 102            ((kas_PrincipalGetNextP = (kas_PrincipalGetNext_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGetNext")) == NULL) ||
 103            ((kas_PrincipalGetDoneP = (kas_PrincipalGetDone_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGetDone")) == NULL) ||
 104            ((kas_PrincipalGetP = (kas_PrincipalGet_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGet")) == NULL) )
 105          {
 106          status = GetLastError();
 107          CloseKasLibrary();
 108          }
 109       }
 110    if (g_hiKasLibrary)
 111       {
 112       rc = TRUE;
 113       }
 114
 115    if (pStatus)
 116       *pStatus = status;
 117    return rc;
 118 }
 119
 120
 121 void CloseKasLibrary (void)
 122 {
 123    if ((--g_cReqKasLibrary) == 0)
 124       {
 125       if (g_hiKasLibrary)
 126          FreeLibrary (g_hiKasLibrary);
 127       g_hiKasLibrary = NULL;
 128       }
 129 }
 130
 131
 132 /*
 133  * CLIENT _____________________________________________________________________
 134  *
 135  */
 136
 137 static size_t g_cReqClientLibrary = 0;
 138 static HINSTANCE g_hiClientLibrary = NULL;
 139
 140 typedef int (ADMINAPI *afsclient_Init_t)(afs_status_p st);
 141
 142 afsclient_TokenGetExisting_t afsclient_TokenGetExistingP = NULL;
 143 afsclient_TokenGetNew_t afsclient_TokenGetNewP = NULL;
 144 afsclient_TokenClose_t afsclient_TokenCloseP = NULL;
 145 afsclient_TokenQuery_t afsclient_TokenQueryP = NULL;
 146 afsclient_CellOpen_t afsclient_CellOpenP = NULL;
 147 afsclient_CellClose_t afsclient_CellCloseP = NULL;
 148 afsclient_LocalCellGet_t afsclient_LocalCellGetP = NULL;
 149 afsclient_Init_t afsclient_InitP = NULL;
 150
 151
 152 BOOL OpenClientLibrary (ULONG *pStatus)
 153 {
 154    BOOL rc = FALSE;
 155    ULONG status = ERROR_DLL_NOT_FOUND;
 156
 157    if ((++g_cReqClientLibrary) == 1)
 158       {
 159       if ( ((g_hiClientLibrary = LoadLibrary (cszLIBRARY_CLIENT)) == NULL) ||
 160            ((afsclient_TokenGetExistingP = (afsclient_TokenGetExisting_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenGetExisting")) == NULL) ||
 161            ((afsclient_TokenGetNewP = (afsclient_TokenGetNew_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenGetNew")) == NULL) ||
 162            ((afsclient_TokenCloseP = (afsclient_TokenClose_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenClose")) == NULL) ||
 163            ((afsclient_TokenQueryP = (afsclient_TokenQuery_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenQuery")) == NULL) ||
 164            ((afsclient_CellOpenP = (afsclient_CellOpen_t)GetProcAddress (g_hiClientLibrary, "afsclient_CellOpen")) == NULL) ||
 165            ((afsclient_CellCloseP = (afsclient_CellClose_t)GetProcAddress (g_hiClientLibrary, "afsclient_CellClose")) == NULL) ||
 166            ((afsclient_LocalCellGetP = (afsclient_LocalCellGet_t)GetProcAddress (g_hiClientLibrary, "afsclient_LocalCellGet")) == NULL) ||
 167            ((afsclient_InitP = (afsclient_Init_t)GetProcAddress (g_hiClientLibrary, "afsclient_Init")) == NULL) )
 168          {
 169          status = GetLastError();
 170          CloseClientLibrary();
 171          }
 172       else if (!(*afsclient_InitP)((afs_status_p)&status))
 173          {
 174          CloseClientLibrary();
 175          }
 176       }
 177    if (g_hiClientLibrary)
 178       {
 179       rc = TRUE;
 180       }
 181
 182    if (pStatus)
 183       *pStatus = status;
 184    return rc;
 185 }
 186
 187
 188 void CloseClientLibrary (void)
 189 {
 190    if ((--g_cReqClientLibrary) == 0)
 191       {
 192       if (g_hiClientLibrary)
 193          FreeLibrary (g_hiClientLibrary);
 194       g_hiClientLibrary = NULL;
 195       }
 196 }
 197