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 "lib/talloc/talloc.h"
  26 #include "lib/tevent/tevent.h"
  27 #include "libwbclient.h"
  28
  29 /* From wb_common.c */
  30
  31 NSS_STATUS winbindd_request_response(int req_type,
  32                                      struct winbindd_request *request,
  33                                      struct winbindd_response *response);
  34
  35 /** @brief Wrapper around Winbind's send/receive API call
  36  *
  37  * @param cmd       Winbind command operation to perform
  38  * @param request   Send structure
  39  * @param response  Receive structure
  40  *
  41  * @return #wbcErr
  42  **/
  43
  44 /**********************************************************************
  45  result == NSS_STATUS_UNAVAIL: winbind not around
  46  result == NSS_STATUS_NOTFOUND: winbind around, but domain missing
  47
  48  Due to a bad API NSS_STATUS_NOTFOUND is returned both when winbind_off
  49  and when winbind return WINBINDD_ERROR. So the semantics of this
  50  routine depends on winbind_on. Grepping for winbind_off I just
  51  found 3 places where winbind is turned off, and this does not conflict
  52  (as far as I have seen) with the callers of is_trusted_domains.
  53
  54  --Volker
  55 **********************************************************************/
  56
  57 wbcErr wbcRequestResponse(int cmd,
  58                           struct winbindd_request *request,
  59                           struct winbindd_response *response)
  60 {
  61         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
  62         NSS_STATUS nss_status;
  63
  64         /* for some calls the request and/or response can be NULL */
  65
  66         nss_status = winbindd_request_response(cmd, request, response);
  67
  68         switch (nss_status) {
  69         case NSS_STATUS_SUCCESS:
  70                 wbc_status = WBC_ERR_SUCCESS;
  71                 break;
  72         case NSS_STATUS_UNAVAIL:
  73                 wbc_status = WBC_ERR_WINBIND_NOT_AVAILABLE;
  74                 break;
  75         case NSS_STATUS_NOTFOUND:
  76                 wbc_status = WBC_ERR_DOMAIN_NOT_FOUND;
  77                 break;
  78         default:
  79                 wbc_status = WBC_ERR_NSS_ERROR;
  80                 break;
  81         }
  82
  83         return wbc_status;
  84 }
  85
  86 /** @brief Translate an error value into a string
  87  *
  88  * @param error
  89  *
  90  * @return a pointer to a static string
  91  **/
  92 const char *wbcErrorString(wbcErr error)
  93 {
  94         switch (error) {
  95         case WBC_ERR_SUCCESS:
  96                 return "WBC_ERR_SUCCESS";
  97         case WBC_ERR_NOT_IMPLEMENTED:
  98                 return "WBC_ERR_NOT_IMPLEMENTED";
  99         case WBC_ERR_UNKNOWN_FAILURE:
 100                 return "WBC_ERR_UNKNOWN_FAILURE";
 101         case WBC_ERR_NO_MEMORY:
 102                 return "WBC_ERR_NO_MEMORY";
 103         case WBC_ERR_INVALID_SID:
 104                 return "WBC_ERR_INVALID_SID";
 105         case WBC_ERR_INVALID_PARAM:
 106                 return "WBC_ERR_INVALID_PARAM";
 107         case WBC_ERR_WINBIND_NOT_AVAILABLE:
 108                 return "WBC_ERR_WINBIND_NOT_AVAILABLE";
 109         case WBC_ERR_DOMAIN_NOT_FOUND:
 110                 return "WBC_ERR_DOMAIN_NOT_FOUND";
 111         case WBC_ERR_INVALID_RESPONSE:
 112                 return "WBC_ERR_INVALID_RESPONSE";
 113         case WBC_ERR_NSS_ERROR:
 114                 return "WBC_ERR_NSS_ERROR";
 115         case WBC_ERR_UNKNOWN_USER:
 116                 return "WBC_ERR_UNKNOWN_USER";
 117         case WBC_ERR_UNKNOWN_GROUP:
 118                 return "WBC_ERR_UNKNOWN_GROUP";
 119         case WBC_ERR_AUTH_ERROR:
 120                 return "WBC_ERR_AUTH_ERROR";
 121         case WBC_ERR_PWD_CHANGE_FAILED:
 122                 return "WBC_ERR_PWD_CHANGE_FAILED";
 123         }
 124
 125         return "unknown wbcErr value";
 126 }
 127
 128 /* Free library allocated memory */
 129 void wbcFreeMemory(void *p)
 130 {
 131         if (p)
 132                 talloc_free(p);
 133
 134         return;
 135 }
 136
 137 wbcErr wbcLibraryDetails(struct wbcLibraryDetails **_details)
 138 {
 139         wbcErr wbc_status = WBC_ERR_UNKNOWN_FAILURE;
 140         struct wbcLibraryDetails *info;
 141
 142         info = talloc(NULL, struct wbcLibraryDetails);
 143         BAIL_ON_PTR_ERROR(info, wbc_status);
 144
 145         info->major_version = WBCLIENT_MAJOR_VERSION;
 146         info->minor_version = WBCLIENT_MINOR_VERSION;
 147         info->vendor_version = talloc_strdup(info,
 148                                              WBCLIENT_VENDOR_VERSION);
 149         BAIL_ON_PTR_ERROR(info->vendor_version, wbc_status);
 150
 151         *_details = info;
 152         info = NULL;
 153
 154         wbc_status = WBC_ERR_SUCCESS;
 155
 156 done:
 157         talloc_free(info);
 158         return wbc_status;
 159 }