source3/winbindd/idmap_passdb.c

   1 /*
   2    Unix SMB/CIFS implementation.
   3
   4    idmap PASSDB backend
   5
   6    Copyright (C) Simo Sorce 2006
   7
   8    This program is free software; you can redistribute it and/or modify
   9    it under the terms of the GNU General Public License as published by
  10    the Free Software Foundation; either version 3 of the License, or
  11    (at your option) any later version.
  12
  13    This program is distributed in the hope that it will be useful,
  14    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16    GNU General Public License for more details.
  17
  18    You should have received a copy of the GNU General Public License
  19    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 */
  21
  22 #include "includes.h"
  23 #include "idmap.h"
  24
  25 #undef DBGC_CLASS
  26 #define DBGC_CLASS DBGC_IDMAP
  27
  28 /*****************************
  29  Initialise idmap database.
  30 *****************************/
  31
  32 static NTSTATUS idmap_pdb_init(struct idmap_domain *dom, const char *params)
  33 {
  34         return NT_STATUS_OK;
  35 }
  36
  37 /**********************************
  38  lookup a set of unix ids.
  39 **********************************/
  40
  41 static NTSTATUS idmap_pdb_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
  42 {
  43         int i;
  44
  45         for (i = 0; ids[i]; i++) {
  46
  47                 /* unmapped by default */
  48                 ids[i]->status = ID_UNMAPPED;
  49
  50                 switch (ids[i]->xid.type) {
  51                 case ID_TYPE_UID:
  52                         if (pdb_uid_to_sid((uid_t)ids[i]->xid.id, ids[i]->sid)) {
  53                                 ids[i]->status = ID_MAPPED;
  54                         }
  55                         break;
  56                 case ID_TYPE_GID:
  57                         if (pdb_gid_to_sid((gid_t)ids[i]->xid.id, ids[i]->sid)) {
  58                                 ids[i]->status = ID_MAPPED;
  59                         }
  60                         break;
  61                 default: /* ?? */
  62                         ids[i]->status = ID_UNKNOWN;
  63                 }
  64         }
  65
  66         return NT_STATUS_OK;
  67 }
  68
  69 /**********************************
  70  lookup a set of sids.
  71 **********************************/
  72
  73 static NTSTATUS idmap_pdb_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
  74 {
  75         int i;
  76
  77         for (i = 0; ids[i]; i++) {
  78                 enum lsa_SidType type;
  79                 union unid_t id;
  80
  81                 if (pdb_sid_to_id(ids[i]->sid, &id, &type)) {
  82                         switch (type) {
  83                         case SID_NAME_USER:
  84                                 ids[i]->xid.id = id.uid;
  85                                 ids[i]->xid.type = ID_TYPE_UID;
  86                                 ids[i]->status = ID_MAPPED;
  87                                 break;
  88
  89                         case SID_NAME_DOM_GRP:
  90                         case SID_NAME_ALIAS:
  91                         case SID_NAME_WKN_GRP:
  92                                 ids[i]->xid.id = id.gid;
  93                                 ids[i]->xid.type = ID_TYPE_GID;
  94                                 ids[i]->status = ID_MAPPED;
  95                                 break;
  96
  97                         default: /* ?? */
  98                                 /* make sure it is marked as unmapped */
  99                                 ids[i]->status = ID_UNKNOWN;
 100                                 break;
 101                         }
 102                 } else {
 103                         /* Query Failed */
 104                         ids[i]->status = ID_UNMAPPED;
 105                 }
 106         }
 107
 108         return NT_STATUS_OK;
 109 }
 110
 111 /**********************************
 112  Close the idmap tdb instance
 113 **********************************/
 114
 115 static struct idmap_methods passdb_methods = {
 116
 117         .init = idmap_pdb_init,
 118         .unixids_to_sids = idmap_pdb_unixids_to_sids,
 119         .sids_to_unixids = idmap_pdb_sids_to_unixids,
 120 };
 121
 122 NTSTATUS idmap_passdb_init(void)
 123 {
 124         return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "passdb", &passdb_methods);
 125 }