2 Unix SMB/CIFS implementation.
4 Copyright (C) Tim Potter 2000
5 Copyright (C) Anthony Liguori <aliguor@us.ibm.com> 2003
6 Copyright (C) Simo Sorce 2003
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.
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.
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.*/
25 #define DBGC_CLASS DBGC_IDMAP
30 /* Function to create a member of the idmap_methods list */
31 NTSTATUS (*reg_meth)(struct idmap_methods **methods);
32 struct idmap_methods *methods;
34 } remote_idmap_functions[] = {
38 static struct idmap_methods *local_map;
39 static struct idmap_methods *remote_map;
41 static void lazy_initialize_idmap(void)
43 static BOOL initialized = False;
44 if (initialized) return;
51 static struct idmap_methods *get_methods(const char *name)
54 struct idmap_methods *ret = NULL;
56 while (remote_idmap_functions[i].name && strcmp(remote_idmap_functions[i].name, name)) {
60 if (remote_idmap_functions[i].name) {
62 if (!remote_idmap_functions[i].methods) {
63 remote_idmap_functions[i].reg_meth(&remote_idmap_functions[i].methods);
66 ret = remote_idmap_functions[i].methods;
72 /* Initialize backend */
75 const char *remote_backend = lp_idmap_backend();
78 idmap_reg_tdb(&local_map);
79 if (NT_STATUS_IS_ERR(local_map->init())) {
80 DEBUG(0, ("idmap_init: could not load or create local backend!\n"));
85 if (!remote_map && remote_backend && *remote_backend != 0) {
86 DEBUG(3, ("idmap_init: using '%s' as remote backend\n", remote_backend));
88 remote_map = get_methods(remote_backend);
90 DEBUG(0, ("idmap_init: could not load remote backend '%s'\n", remote_backend));
99 NTSTATUS idmap_set_mapping(const DOM_SID *sid, unid_t id, int id_type)
103 lazy_initialize_idmap();
105 if (!lp_idmap_only()) {
106 if (id_type & ID_USERID) {
108 if (!lp_idmap_uid(&low, &high)) {
109 DEBUG(0, ("idmap uid range missing or invalid\n"));
110 DEBUGADD(0, ("idmap will be unable to map SIDs\n"));
111 return NT_STATUS_UNSUCCESSFUL;
113 if (low > id.uid || high < id.uid) {
114 DEBUG(0, ("uid not in range and idmap only is flase - not storing the mapping\n"));
115 return NT_STATUS_UNSUCCESSFUL;
117 } else if (id_type & ID_GROUPID) {
119 if (!lp_idmap_gid(&low, &high)) {
120 DEBUG(0, ("idmap gid range missing or invalid\n"));
121 DEBUGADD(0, ("idmap will be unable to map SIDs\n"));
122 return NT_STATUS_UNSUCCESSFUL;
124 if (low > id.gid || high < id.gid) {
125 DEBUG(0, ("uid not in range and idmap only is flase - not storing the mapping\n"));
126 return NT_STATUS_UNSUCCESSFUL;
129 DEBUG(0, ("Wrong ID Type, mapping failed!"));
130 return NT_STATUS_UNSUCCESSFUL;
134 ret = local_map->set_mapping(sid, id, id_type);
135 if (NT_STATUS_IS_ERR(ret)) {
136 DEBUG (0, ("idmap_set_mapping: Error, unable to modify local cache!\n"));
137 DEBUGADD(0, ("Error: %s", nt_errstr(ret)));
141 /* Being able to update the remote cache is seldomly right.
142 Generally this is a forbidden operation. */
143 if (!(id_type & ID_CACHE) && (remote_map != NULL)) {
144 remote_map->set_mapping(sid, id, id_type);
145 if (NT_STATUS_IS_ERR(ret)) {
146 DEBUG (0, ("idmap_set_mapping: Error, unable to modify remote cache!\n"));
147 DEBUGADD(0, ("Error: %s", nt_errstr(ret)));
154 /* Get ID from SID */
155 NTSTATUS idmap_get_id_from_sid(unid_t *id, int *id_type, const DOM_SID *sid)
160 lazy_initialize_idmap();
163 if (remote_map) { /* We have a central remote idmap */
164 loc_type |= ID_NOMAP;
166 ret = local_map->get_id_from_sid(id, &loc_type, sid);
167 if (NT_STATUS_IS_ERR(ret)) {
169 ret = remote_map->get_id_from_sid(id, id_type, sid);
170 if (NT_STATUS_IS_ERR(ret)) {
171 DEBUG(3, ("idmap_get_id_from_sid: error fetching id!\n"));
174 loc_type |= ID_CACHE;
175 idmap_set_mapping(sid, *id, loc_type);
179 *id_type = loc_type & ID_TYPEMASK;
185 /* Get SID from ID */
186 NTSTATUS idmap_get_sid_from_id(DOM_SID *sid, unid_t id, int id_type)
191 lazy_initialize_idmap();
195 loc_type = id_type | ID_NOMAP;
197 ret = local_map->get_sid_from_id(sid, id, loc_type);
198 if (NT_STATUS_IS_ERR(ret)) {
200 ret = remote_map->get_sid_from_id(sid, id, id_type);
201 if (NT_STATUS_IS_ERR(ret)) {
202 DEBUG(3, ("idmap_get_sid_from_id: unable to fetch sid!\n"));
205 loc_type |= ID_CACHE;
206 idmap_set_mapping(sid, id, loc_type);
215 NTSTATUS idmap_close(void)
219 ret = local_map->close();
220 if (NT_STATUS_IS_ERR(ret)) {
221 DEBUG(3, ("idmap_close: failed to close local cache!\n"));
225 ret = remote_map->close();
226 if (NT_STATUS_IS_ERR(ret)) {
227 DEBUG(3, ("idmap_close: failed to close remote idmap repository!\n"));
234 /* Dump backend status */
235 void idmap_status(void)
237 lazy_initialize_idmap();
240 if (remote_map) remote_map->status();