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/afsconfig.h>
  15 #include <afs/param.h>
  16 #include <afs/stds.h>
  17 #include <roken.h>
  18 }
  19
  20 #include <WINNT/afsapplib.h>
  21 #include "al_dynlink.h"
  22
  23
  24 /*
  25  * LIBRARIES __________________________________________________________________
  26  *
  27  */
  28
  29 #define cszLIBRARY_UTIL        TEXT("AfsAdminUtil.dll")
  30 #define cszLIBRARY_KAS         TEXT("AfsKasAdmin.dll")
  31 #define cszLIBRARY_CLIENT      TEXT("AfsClientAdmin.dll")
  32
  33
  34 /*
  35  * ADMIN ______________________________________________________________________
  36  *
  37  */
  38
  39 static size_t g_cReqUtilLibrary = 0;
  40 static HINSTANCE g_hiUtilLibrary = NULL;
  41
  42 util_AdminErrorCodeTranslate_t util_AdminErrorCodeTranslateP = NULL;
  43
  44
  45 BOOL OpenUtilLibrary (ULONG *pStatus)
  46 {
  47    BOOL rc = FALSE;
  48    ULONG status = ERROR_DLL_NOT_FOUND;
  49
  50    if ((++g_cReqUtilLibrary) == 1)
  51       {
  52       if ( ((g_hiUtilLibrary = LoadLibrary (cszLIBRARY_UTIL)) == NULL) ||
  53            ((util_AdminErrorCodeTranslateP = (util_AdminErrorCodeTranslate_t)GetProcAddress (g_hiUtilLibrary, "util_AdminErrorCodeTranslate")) == NULL) )
  54          {
  55          status = GetLastError();
  56          CloseUtilLibrary();
  57          }
  58       }
  59    if (g_hiUtilLibrary)
  60       {
  61       rc = TRUE;
  62       }
  63
  64    if (pStatus)
  65       *pStatus = status;
  66    return rc;
  67 }
  68
  69
  70 void CloseUtilLibrary (void)
  71 {
  72    if ((--g_cReqUtilLibrary) == 0)
  73       {
  74       if (g_hiUtilLibrary)
  75          FreeLibrary (g_hiUtilLibrary);
  76       g_hiUtilLibrary = NULL;
  77       }
  78 }
  79
  80
  81 /*
  82  * KAS ________________________________________________________________________
  83  *
  84  */
  85
  86 static size_t g_cReqKasLibrary = 0;
  87 static HINSTANCE g_hiKasLibrary = NULL;
  88
  89 kas_PrincipalGetBegin_t kas_PrincipalGetBeginP = NULL;
  90 kas_PrincipalGetNext_t kas_PrincipalGetNextP = NULL;
  91 kas_PrincipalGetDone_t kas_PrincipalGetDoneP = NULL;
  92 kas_PrincipalGet_t kas_PrincipalGetP = NULL;
  93
  94
  95 BOOL OpenKasLibrary (ULONG *pStatus)
  96 {
  97    BOOL rc = FALSE;
  98    ULONG status = ERROR_DLL_NOT_FOUND;
  99
 100    if ((++g_cReqKasLibrary) == 1)
 101       {
 102       if ( ((g_hiKasLibrary = LoadLibrary (cszLIBRARY_KAS)) == NULL) ||
 103            ((kas_PrincipalGetBeginP = (kas_PrincipalGetBegin_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGetBegin")) == NULL) ||
 104            ((kas_PrincipalGetNextP = (kas_PrincipalGetNext_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGetNext")) == NULL) ||
 105            ((kas_PrincipalGetDoneP = (kas_PrincipalGetDone_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGetDone")) == NULL) ||
 106            ((kas_PrincipalGetP = (kas_PrincipalGet_t)GetProcAddress (g_hiKasLibrary, "kas_PrincipalGet")) == NULL) )
 107          {
 108          status = GetLastError();
 109          CloseKasLibrary();
 110          }
 111       }
 112    if (g_hiKasLibrary)
 113       {
 114       rc = TRUE;
 115       }
 116
 117    if (pStatus)
 118       *pStatus = status;
 119    return rc;
 120 }
 121
 122
 123 void CloseKasLibrary (void)
 124 {
 125    if ((--g_cReqKasLibrary) == 0)
 126       {
 127       if (g_hiKasLibrary)
 128          FreeLibrary (g_hiKasLibrary);
 129       g_hiKasLibrary = NULL;
 130       }
 131 }
 132
 133
 134 /*
 135  * CLIENT _____________________________________________________________________
 136  *
 137  */
 138
 139 static size_t g_cReqClientLibrary = 0;
 140 static HINSTANCE g_hiClientLibrary = NULL;
 141
 142 typedef int (ADMINAPI *afsclient_Init_t)(afs_status_p st);
 143
 144 afsclient_TokenGetExisting_t afsclient_TokenGetExistingP = NULL;
 145 afsclient_TokenGetNew_t afsclient_TokenGetNewP = NULL;
 146 afsclient_TokenClose_t afsclient_TokenCloseP = NULL;
 147 afsclient_TokenQuery_t afsclient_TokenQueryP = NULL;
 148 afsclient_CellOpen_t afsclient_CellOpenP = NULL;
 149 afsclient_CellClose_t afsclient_CellCloseP = NULL;
 150 afsclient_LocalCellGet_t afsclient_LocalCellGetP = NULL;
 151 afsclient_Init_t afsclient_InitP = NULL;
 152
 153
 154 BOOL OpenClientLibrary (ULONG *pStatus)
 155 {
 156    BOOL rc = FALSE;
 157    ULONG status = ERROR_DLL_NOT_FOUND;
 158
 159    if ((++g_cReqClientLibrary) == 1)
 160       {
 161       if ( ((g_hiClientLibrary = LoadLibrary (cszLIBRARY_CLIENT)) == NULL) ||
 162            ((afsclient_TokenGetExistingP = (afsclient_TokenGetExisting_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenGetExisting")) == NULL) ||
 163            ((afsclient_TokenGetNewP = (afsclient_TokenGetNew_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenGetNew")) == NULL) ||
 164            ((afsclient_TokenCloseP = (afsclient_TokenClose_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenClose")) == NULL) ||
 165            ((afsclient_TokenQueryP = (afsclient_TokenQuery_t)GetProcAddress (g_hiClientLibrary, "afsclient_TokenQuery")) == NULL) ||
 166            ((afsclient_CellOpenP = (afsclient_CellOpen_t)GetProcAddress (g_hiClientLibrary, "afsclient_CellOpen")) == NULL) ||
 167            ((afsclient_CellCloseP = (afsclient_CellClose_t)GetProcAddress (g_hiClientLibrary, "afsclient_CellClose")) == NULL) ||
 168            ((afsclient_LocalCellGetP = (afsclient_LocalCellGet_t)GetProcAddress (g_hiClientLibrary, "afsclient_LocalCellGet")) == NULL) ||
 169            ((afsclient_InitP = (afsclient_Init_t)GetProcAddress (g_hiClientLibrary, "afsclient_Init")) == NULL) )
 170          {
 171          status = GetLastError();
 172          CloseClientLibrary();
 173          }
 174       else if (!(*afsclient_InitP)((afs_status_p)&status))
 175          {
 176          CloseClientLibrary();
 177          }
 178       }
 179    if (g_hiClientLibrary)
 180       {
 181       rc = TRUE;
 182       }
 183
 184    if (pStatus)
 185       *pStatus = status;
 186    return rc;
 187 }
 188
 189
 190 void CloseClientLibrary (void)
 191 {
 192    if ((--g_cReqClientLibrary) == 0)
 193       {
 194       if (g_hiClientLibrary)
 195          FreeLibrary (g_hiClientLibrary);
 196       g_hiClientLibrary = NULL;
 197       }
 198 }
 199