nsswitch/libwbclient/wbclient.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    Winbind client API
   5
   6    Copyright (C) Gerald (Jerry) Carter 2007
   7
   8
   9    This library is free software; you can redistribute it and/or
  10    modify it under the terms of the GNU Lesser General Public
  11    License as published by the Free Software Foundation; either
  12    version 3 of the License, or (at your option) any later version.
  13
  14    This library is distributed in the hope that it will be useful,
  15    but WITHOUT ANY WARRANTY; without even the implied warranty of
  16    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  17    Library General Public License for more details.
  18
  19    You should have received a copy of the GNU Lesser General Public License
  20    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21 */
  22
  23 /* Required Headers */
  24
  25 #include "replace.h"
  26 #include "lib/talloc/talloc.h"
  27 #include "lib/tevent/tevent.h"
  28 #include "libwbclient.h"
  29
  30 /* From wb_common.c */
  31
  32 NSS_STATUS winbindd_request_response(int req_type,
  33                                      struct winbindd_request *request,
  34                                      struct winbindd_response *response);
  35
  36 /** @brief Wrapper around Winbind's send/receive API call
  37  *
  38  * @param cmd       Winbind command operation to perform
  39  * @param request   Send structure
  40  * @param response  Receive structure
  41  *
  42  * @return #wbcErr
  43  **/
  44
  45 /**********************************************************************
  46  result == NSS_STATUS_UNAVAIL: winbind not around
  47  result == NSS_STATUS_NOTFOUND: winbind around, but domain missing
  48
  49  Due to a bad API NSS_STATUS_NOTFOUND is returned both when winbind_off
  50  and when winbind return WINBINDD_ERROR. So the semantics of this
  51  routine depends on winbind_on. Grepping for winbind_off I just
  52  found 3 places where winbind is turned off, and this does not conflict
  53  (as far as I have seen) with the callers of is_trusted_domains.
  54
  55  --Volker
  56 **********************************************************************/
  57
  58 wbcErr wbcRequestResponse(int cmd,
  59                           struct winbindd_request *request,
  60                           struct winbindd_response *response)
  61 {
  62         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  63         NSS_STATUS nss_status;
  64
  65         /* for some calls the request and/or response can be NULL */
  66
  67         nss_status = winbindd_request_response(cmd, request, response);
  68
  69         switch (nss_status) {
  70         case NSS_STATUS_SUCCESS:
  71                 wbc_status = WBC_ERR_SUCCESS;
  72                 break;
  73         case NSS_STATUS_UNAVAIL:
  74                 wbc_status = WBC_ERR_WINBIND_NOT_AVAILABLE;
  75                 break;
  76         case NSS_STATUS_NOTFOUND:
  77                 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
  78                 break;
  79         default:
  80                 wbc_status = WBC_ERR_NSS_ERROR;
  81                 break;
  82         }
  83
  84         return wbc_status;
  85 }
  86
  87 /** @brief Translate an error value into a string
  88  *
  89  * @param error
  90  *
  91  * @return a pointer to a static string
  92  **/
  93 const char *wbcErrorString(wbcErr error)
  94 {
  95         switch (error) {
  96         case WBC_ERR_SUCCESS:
  97                 return "WBC_ERR_SUCCESS";
  98         case WBC_ERR_NOT_IMPLEMENTED:
  99                 return "WBC_ERR_NOT_IMPLEMENTED";
 100         case WBC_ERR_UNKNOWN_FAILURE:
 101                 return "WBC_ERR_UNKNOWN_FAILURE";
 102         case WBC_ERR_NO_MEMORY:
 103                 return "WBC_ERR_NO_MEMORY";
 104         case WBC_ERR_INVALID_SID:
 105                 return "WBC_ERR_INVALID_SID";
 106         case WBC_ERR_INVALID_PARAM:
 107                 return "WBC_ERR_INVALID_PARAM";
 108         case WBC_ERR_WINBIND_NOT_AVAILABLE:
 109                 return "WBC_ERR_WINBIND_NOT_AVAILABLE";
 110         case WBC_ERR_DOMAIN_NOT_FOUND:
 111                 return "WBC_ERR_DOMAIN_NOT_FOUND";
 112         case WBC_ERR_INVALID_RESPONSE:
 113                 return "WBC_ERR_INVALID_RESPONSE";
 114         case WBC_ERR_NSS_ERROR:
 115                 return "WBC_ERR_NSS_ERROR";
 116         case WBC_ERR_UNKNOWN_USER:
 117                 return "WBC_ERR_UNKNOWN_USER";
 118         case WBC_ERR_UNKNOWN_GROUP:
 119                 return "WBC_ERR_UNKNOWN_GROUP";
 120         case WBC_ERR_AUTH_ERROR:
 121                 return "WBC_ERR_AUTH_ERROR";
 122         case WBC_ERR_PWD_CHANGE_FAILED:
 123                 return "WBC_ERR_PWD_CHANGE_FAILED";
 124         }
 125
 126         return "unknown wbcErr value";
 127 }
 128
 129 /* Free library allocated memory */
 130 void wbcFreeMemory(void *p)
 131 {
 132         if (p)
 133                 talloc_free(p);
 134
 135         return;
 136 }
 137
 138 wbcErr wbcLibraryDetails(struct wbcLibraryDetails **_details)
 139 {
 140         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 141         struct wbcLibraryDetails *info;
 142
 143         info = talloc(NULL, struct wbcLibraryDetails);
 144         BAIL_ON_PTR_ERROR(info, wbc_status);
 145
 146         info->major_version = WBCLIENT_MAJOR_VERSION;
 147         info->minor_version = WBCLIENT_MINOR_VERSION;
 148         info->vendor_version = talloc_strdup(info,
 149                                              WBCLIENT_VENDOR_VERSION);
 150         BAIL_ON_PTR_ERROR(info->vendor_version, wbc_status);
 151
 152         *_details = info;
 153         info = NULL;
 154
 155         wbc_status = WBC_ERR_SUCCESS;
 156
 157 done:
 158         talloc_free(info);
 159         return wbc_status;
 160 }