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 #include "passdb.h"
  25
  26 #undef DBGC_CLASS
  27 #define DBGC_CLASS DBGC_IDMAP
  28
  29 /*****************************
  30  Initialise idmap database.
  31 *****************************/
  32
  33 static NTSTATUS idmap_pdb_init(struct idmap_domain *dom)
  34 {
  35         return NT_STATUS_OK;
  36 }
  37
  38 /**********************************
  39  lookup a set of unix ids.
  40 **********************************/
  41
  42 static NTSTATUS idmap_pdb_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
  43 {
  44         int i;
  45
  46         for (i = 0; ids[i]; i++) {
  47
  48                 /* unmapped by default */
  49                 ids[i]->status = ID_UNMAPPED;
  50
  51                 switch (ids[i]->xid.type) {
  52                 case ID_TYPE_UID:
  53                         if (pdb_uid_to_sid((uid_t)ids[i]->xid.id, ids[i]->sid)) {
  54                                 ids[i]->status = ID_MAPPED;
  55                         }
  56                         break;
  57                 case ID_TYPE_GID:
  58                         if (pdb_gid_to_sid((gid_t)ids[i]->xid.id, ids[i]->sid)) {
  59                                 ids[i]->status = ID_MAPPED;
  60                         }
  61                         break;
  62                 default: /* ?? */
  63                         ids[i]->status = ID_UNKNOWN;
  64                 }
  65         }
  66
  67         return NT_STATUS_OK;
  68 }
  69
  70 /**********************************
  71  lookup a set of sids.
  72 **********************************/
  73
  74 static NTSTATUS idmap_pdb_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
  75 {
  76         int i;
  77
  78         for (i = 0; ids[i]; i++) {
  79                 enum lsa_SidType type;
  80                 uid_t uid;
  81                 gid_t gid;
  82
  83                 if (pdb_sid_to_id(ids[i]->sid, &uid, &gid, &type)) {
  84                         switch (type) {
  85                         case SID_NAME_USER:
  86                                 ids[i]->xid.id = uid;
  87                                 ids[i]->xid.type = ID_TYPE_UID;
  88                                 ids[i]->status = ID_MAPPED;
  89                                 break;
  90
  91                         case SID_NAME_DOM_GRP:
  92                         case SID_NAME_ALIAS:
  93                         case SID_NAME_WKN_GRP:
  94                                 ids[i]->xid.id = gid;
  95                                 ids[i]->xid.type = ID_TYPE_GID;
  96                                 ids[i]->status = ID_MAPPED;
  97                                 break;
  98
  99                         default: /* ?? */
 100                                 /* make sure it is marked as unmapped */
 101                                 ids[i]->status = ID_UNKNOWN;
 102                                 break;
 103                         }
 104                 } else {
 105                         /* Query Failed */
 106                         ids[i]->status = ID_UNMAPPED;
 107                 }
 108         }
 109
 110         return NT_STATUS_OK;
 111 }
 112
 113 /**********************************
 114  Close the idmap tdb instance
 115 **********************************/
 116
 117 static struct idmap_methods passdb_methods = {
 118
 119         .init = idmap_pdb_init,
 120         .unixids_to_sids = idmap_pdb_unixids_to_sids,
 121         .sids_to_unixids = idmap_pdb_sids_to_unixids,
 122 };
 123
 124 NTSTATUS idmap_passdb_init(void)
 125 {
 126         return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "passdb", &passdb_methods);
 127 }