source3/nsswitch/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 2 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, write to the Free Software
  20    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  21 */
  22
  23 #include "includes.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)
  33 {
  34         dom->initialized = True;
  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                 union unid_t id;
  81
  82                 if (pdb_sid_to_id(ids[i]->sid, &id, &type)) {
  83                         switch (type) {
  84                         case SID_NAME_USER:
  85                                 ids[i]->xid.id = id.uid;
  86                                 ids[i]->xid.type = ID_TYPE_UID;
  87                                 ids[i]->status = ID_MAPPED;
  88                                 break;
  89
  90                         case SID_NAME_DOM_GRP:
  91                         case SID_NAME_ALIAS:
  92                         case SID_NAME_WKN_GRP:
  93                                 ids[i]->xid.id = id.gid;
  94                                 ids[i]->xid.type = ID_TYPE_GID;
  95                                 ids[i]->status = ID_MAPPED;
  96                                 break;
  97
  98                         default: /* ?? */
  99                                 /* make sure it is marked as unmapped */
 100                                 ids[i]->status = ID_UNKNOWN;
 101                                 break;
 102                         }
 103                 } else {
 104                         /* Query Failed */
 105                         ids[i]->status = ID_UNMAPPED;
 106                 }
 107         }
 108
 109         return NT_STATUS_OK;
 110 }
 111
 112 /**********************************
 113  Close the idmap tdb instance
 114 **********************************/
 115
 116 static NTSTATUS idmap_pdb_close(struct idmap_domain *dom)
 117 {
 118         return NT_STATUS_OK;
 119 }
 120
 121 static struct idmap_methods passdb_methods = {
 122
 123         .init = idmap_pdb_init,
 124         .unixids_to_sids = idmap_pdb_unixids_to_sids,
 125         .sids_to_unixids = idmap_pdb_sids_to_unixids,
 126         .close_fn =idmap_pdb_close
 127 };
 128
 129 NTSTATUS idmap_passdb_init(void)
 130 {
 131         return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "passdb", &passdb_methods);
 132 }