2 Unix SMB/CIFS implementation.
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8 Copyright (C) Simo Sorce 2003
9 Copyright (C) Gerald Carter 2003
11 This program is free software; you can redistribute it and/or modify
12 it under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 This program is distributed in the hope that it will be useful,
17 but WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 GNU General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with this program; if not, write to the Free Software
23 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
29 #define DBGC_CLASS DBGC_IDMAP
31 struct ldap_connection *ldap_conn = NULL;
33 /* number tries while allocating new id */
34 #define LDAP_MAX_ALLOC_ID 128
37 /***********************************************************************
38 This function cannot be called to modify a mapping, only set a new one
39 ***********************************************************************/
41 static NTSTATUS ldap_set_mapping(const DOM_SID *sid, unid_t id, int id_type)
43 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
47 struct ldap_message *msg;
48 struct ldap_message *mod_res = NULL;
51 type = (id_type & ID_USERID) ? "uidNumber" : "gidNumber";
53 sid_to_string( sid_string, sid );
55 pstr_sprintf(id_str, "%lu",
56 ((id_type & ID_USERID) ?
57 (unsigned long)id.uid : (unsigned long)id.gid));
60 "dn: sambaSID=%s,%s\n"
62 "objectClass: sambaIdmapEntry\n"
63 "objectClass: sambaSidEntry\n"
66 sid_string, lp_ldap_idmap_suffix(), sid_string, type,
67 ((id_type & ID_USERID) ?
68 (unsigned long)id.uid : (unsigned long)id.gid));
70 msg = ldap_ldif2msg(mod);
75 return NT_STATUS_NO_MEMORY;
77 mod_res = ldap_transaction(ldap_conn, msg);
79 if ((mod_res == NULL) || (mod_res->r.ModifyResponse.resultcode != 0))
84 destroy_ldap_message(msg);
85 destroy_ldap_message(mod_res);
89 /*****************************************************************************
91 *****************************************************************************/
93 static NTSTATUS ldap_allocate_rid(uint32 *rid, int rid_type)
95 return NT_STATUS_UNSUCCESSFUL;
98 /*****************************************************************************
99 Allocate a new uid or gid
100 *****************************************************************************/
102 static NTSTATUS ldap_allocate_id(unid_t *id, int id_type)
104 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
107 const char *attrs[] = { "uidNumber", "gidNumber" };
108 struct ldap_message *idpool_s = NULL;
109 struct ldap_message *idpool = NULL;
110 struct ldap_message *mod_msg = NULL;
111 struct ldap_message *mod_res = NULL;
113 const char *id_attrib;
116 id_attrib = (id_type & ID_USERID) ? "uidNumber" : "gidNumber";
118 idpool_s = new_ldap_search_message(lp_ldap_suffix(),
119 LDAP_SEARCH_SCOPE_SUB,
120 "(objectclass=sambaUnixIdPool)",
123 if (idpool_s == NULL)
124 return NT_STATUS_NO_MEMORY;
126 idpool = ldap_searchone(ldap_conn, idpool_s, NULL);
131 if (!ldap_find_single_int(idpool, id_attrib, &value))
134 /* this must succeed or else we wouldn't have initialized */
136 lp_idmap_uid( &luid, &huid);
137 lp_idmap_gid( &lgid, &hgid);
139 /* make sure we still have room to grow */
141 if (id_type & ID_USERID) {
143 if (id->uid > huid ) {
144 DEBUG(0,("ldap_allocate_id: Cannot allocate uid "
145 "above %lu!\n", (unsigned long)huid));
151 if (id->gid > hgid ) {
152 DEBUG(0,("ldap_allocate_id: Cannot allocate gid "
153 "above %lu!\n", (unsigned long)hgid));
160 "changetype: modify\n"
166 idpool->r.SearchResultEntry.dn, id_attrib, id_attrib, value,
167 id_attrib, id_attrib, value+1);
169 mod_msg = ldap_ldif2msg(mod);
176 mod_res = ldap_transaction(ldap_conn, mod_msg);
178 if ((mod_res == NULL) || (mod_res->r.ModifyResponse.resultcode != 0))
183 destroy_ldap_message(idpool_s);
184 destroy_ldap_message(idpool);
185 destroy_ldap_message(mod_msg);
186 destroy_ldap_message(mod_res);
191 /*****************************************************************************
193 *****************************************************************************/
195 static NTSTATUS ldap_get_sid_from_id(DOM_SID *sid, unid_t id, int id_type)
199 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
200 const char *attr_list[] = { "sambaSID" };
201 struct ldap_message *msg;
202 struct ldap_message *entry = NULL;
205 type = (id_type & ID_USERID) ? "uidNumber" : "gidNumber";
207 pstr_sprintf(filter, "(&(objectClass=%s)(%s=%lu))", "sambaIdmapEntry",
209 ((id_type & ID_USERID) ?
210 (unsigned long)id.uid : (unsigned long)id.gid));
212 msg = new_ldap_search_message(lp_ldap_idmap_suffix(),
213 LDAP_SEARCH_SCOPE_SUB,
214 filter, 1, attr_list);
217 return NT_STATUS_NO_MEMORY;
219 entry = ldap_searchone(ldap_conn, msg, NULL);
224 if (!ldap_find_single_string(entry, "sambaSID", entry->mem_ctx,
228 if (!string_to_sid(sid, sid_str))
233 destroy_ldap_message(msg);
234 destroy_ldap_message(entry);
239 /***********************************************************************
241 ***********************************************************************/
243 static NTSTATUS ldap_get_id_from_sid(unid_t *id, int *id_type,
248 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
249 struct ldap_message *msg;
250 struct ldap_message *entry = NULL;
253 DEBUG(8,("ldap_get_id_from_sid: %s (%s)\n", sid_string_static(sid),
254 (*id_type & ID_GROUPID ? "group" : "user") ));
256 type = ((*id_type) & ID_USERID) ? "uidNumber" : "gidNumber";
258 pstr_sprintf(filter, "(&(objectClass=%s)(%s=%s))",
259 "sambaIdmapEntry", "sambaSID", sid_string_static(sid));
261 msg = new_ldap_search_message(lp_ldap_idmap_suffix(),
262 LDAP_SEARCH_SCOPE_SUB,
266 return NT_STATUS_NO_MEMORY;
268 entry = ldap_searchone(ldap_conn, msg, NULL);
273 if (!ldap_find_single_int(entry, type, &value))
276 if ((*id_type) & ID_USERID)
285 if ((*id_type) & ID_QUERY_ONLY)
288 /* Allocate a new RID */
290 for (i = 0; i < LDAP_MAX_ALLOC_ID; i++) {
291 ret = ldap_allocate_id(id, *id_type);
292 if ( NT_STATUS_IS_OK(ret) )
296 if ( !NT_STATUS_IS_OK(ret) ) {
297 DEBUG(0,("Could not allocate id\n"));
301 DEBUG(10,("ldap_get_id_from_sid: Allocated new %cid [%ul]\n",
302 (*id_type & ID_GROUPID ? 'g' : 'u'), (uint32)id->uid ));
304 ret = ldap_set_mapping(sid, *id, *id_type);
307 destroy_ldap_message(msg);
308 destroy_ldap_message(entry);
313 /**********************************************************************
314 Verify the sambaUnixIdPool entry in the directory.
315 **********************************************************************/
316 static NTSTATUS verify_idpool(void)
318 const char *attr_list[3] = { "uidnumber", "gidnumber", "objectclass" };
321 struct ldap_message *msg, *entry, *res;
326 msg = new_ldap_search_message(lp_ldap_suffix(),
327 LDAP_SEARCH_SCOPE_SUB,
328 "(objectClass=sambaUnixIdPool)",
332 return NT_STATUS_NO_MEMORY;
334 entry = ldap_searchone(ldap_conn, msg, NULL);
336 result = (entry != NULL);
338 destroy_ldap_message(msg);
339 destroy_ldap_message(entry);
344 if ( !lp_idmap_uid(&luid, &huid) || !lp_idmap_gid( &lgid, &hgid ) ) {
345 DEBUG(3,("ldap_idmap_init: idmap uid/gid parameters not "
347 return NT_STATUS_UNSUCCESSFUL;
352 "changetype: modify\n"
354 "objectClass: sambaUnixIdPool\n"
361 lp_ldap_idmap_suffix(),
362 (unsigned long)luid, (unsigned long)lgid);
364 msg = ldap_ldif2msg(mod);
369 return NT_STATUS_NO_MEMORY;
371 res = ldap_transaction(ldap_conn, msg);
373 if ((res == NULL) || (res->r.ModifyResponse.resultcode != 0)) {
374 destroy_ldap_message(msg);
375 destroy_ldap_message(res);
376 DEBUG(5, ("Could not add sambaUnixIdPool\n"));
377 return NT_STATUS_UNSUCCESSFUL;
380 destroy_ldap_message(msg);
381 destroy_ldap_message(res);
385 /*****************************************************************************
386 Initialise idmap database.
387 *****************************************************************************/
389 static NTSTATUS ldap_idmap_init( char *params )
394 ldap_conn = new_ldap_connection();
396 if (!fetch_ldap_pw(&dn, &pw))
397 return NT_STATUS_UNSUCCESSFUL;
399 ldap_conn->auth_dn = talloc_strdup(ldap_conn->mem_ctx, dn);
400 ldap_conn->simple_pw = talloc_strdup(ldap_conn->mem_ctx, pw);
405 if (!ldap_setup_connection(ldap_conn, params, NULL, NULL))
406 return NT_STATUS_UNSUCCESSFUL;
408 /* see if the idmap suffix and sub entries exists */
410 nt_status = verify_idpool();
411 if ( !NT_STATUS_IS_OK(nt_status) )
417 /*****************************************************************************
419 *****************************************************************************/
421 static NTSTATUS ldap_idmap_close(void)
424 DEBUG(5,("The connection to the LDAP server was closed\n"));
425 /* maybe free the results here --metze */
431 /* This function doesn't make as much sense in an LDAP world since the calling
432 node doesn't really control the ID ranges */
433 static void ldap_idmap_status(void)
435 DEBUG(0, ("LDAP IDMAP Status not available\n"));
438 static struct idmap_methods ldap_methods = {
442 ldap_get_sid_from_id,
443 ldap_get_id_from_sid,
450 NTSTATUS idmap_smbldap_init(void)
452 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "smbldap", &ldap_methods);