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
  24 #undef DBGC_CLASS
  25 #define DBGC_CLASS DBGC_IDMAP
  26
  27 /*****************************
  28  Initialise idmap database.
  29 *****************************/
  30
  31 static NTSTATUS idmap_pdb_init(struct idmap_domain *dom, const char *params)
  32 {
  33         return NT_STATUS_OK;
  34 }
  35
  36 /**********************************
  37  lookup a set of unix ids.
  38 **********************************/
  39
  40 static NTSTATUS idmap_pdb_unixids_to_sids(struct idmap_domain *dom, struct id_map **ids)
  41 {
  42         int i;
  43
  44         for (i = 0; ids[i]; i++) {
  45
  46                 /* unmapped by default */
  47                 ids[i]->status = ID_UNMAPPED;
  48
  49                 switch (ids[i]->xid.type) {
  50                 case ID_TYPE_UID:
  51                         if (pdb_uid_to_sid((uid_t)ids[i]->xid.id, ids[i]->sid)) {
  52                                 ids[i]->status = ID_MAPPED;
  53                         }
  54                         break;
  55                 case ID_TYPE_GID:
  56                         if (pdb_gid_to_sid((gid_t)ids[i]->xid.id, ids[i]->sid)) {
  57                                 ids[i]->status = ID_MAPPED;
  58                         }
  59                         break;
  60                 default: /* ?? */
  61                         ids[i]->status = ID_UNKNOWN;
  62                 }
  63         }
  64
  65         return NT_STATUS_OK;
  66 }
  67
  68 /**********************************
  69  lookup a set of sids.
  70 **********************************/
  71
  72 static NTSTATUS idmap_pdb_sids_to_unixids(struct idmap_domain *dom, struct id_map **ids)
  73 {
  74         int i;
  75
  76         for (i = 0; ids[i]; i++) {
  77                 enum lsa_SidType type;
  78                 union unid_t id;
  79
  80                 if (pdb_sid_to_id(ids[i]->sid, &id, &type)) {
  81                         switch (type) {
  82                         case SID_NAME_USER:
  83                                 ids[i]->xid.id = id.uid;
  84                                 ids[i]->xid.type = ID_TYPE_UID;
  85                                 ids[i]->status = ID_MAPPED;
  86                                 break;
  87
  88                         case SID_NAME_DOM_GRP:
  89                         case SID_NAME_ALIAS:
  90                         case SID_NAME_WKN_GRP:
  91                                 ids[i]->xid.id = id.gid;
  92                                 ids[i]->xid.type = ID_TYPE_GID;
  93                                 ids[i]->status = ID_MAPPED;
  94                                 break;
  95
  96                         default: /* ?? */
  97                                 /* make sure it is marked as unmapped */
  98                                 ids[i]->status = ID_UNKNOWN;
  99                                 break;
 100                         }
 101                 } else {
 102                         /* Query Failed */
 103                         ids[i]->status = ID_UNMAPPED;
 104                 }
 105         }
 106
 107         return NT_STATUS_OK;
 108 }
 109
 110 /**********************************
 111  Close the idmap tdb instance
 112 **********************************/
 113
 114 static NTSTATUS idmap_pdb_close(struct idmap_domain *dom)
 115 {
 116         return NT_STATUS_OK;
 117 }
 118
 119 static struct idmap_methods passdb_methods = {
 120
 121         .init = idmap_pdb_init,
 122         .unixids_to_sids = idmap_pdb_unixids_to_sids,
 123         .sids_to_unixids = idmap_pdb_sids_to_unixids,
 124         .close_fn =idmap_pdb_close
 125 };
 126
 127 NTSTATUS idmap_passdb_init(void)
 128 {
 129         return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "passdb", &passdb_methods);
 130 }