2 Unix SMB/CIFS implementation.
6 Copyright (C) Tim Potter 2000
7 Copyright (C) Jim McDonough <jmcd@us.ibm.com> 2003
8 Copyright (C) Gerald Carter 2003
9 Copyright (C) Simo Sorce 2003-2007
10 Copyright (C) Michael Adam 2010
12 This program is free software; you can redistribute it and/or modify
13 it under the terms of the GNU General Public License as published by
14 the Free Software Foundation; either version 3 of the License, or
15 (at your option) any later version.
17 This program is distributed in the hope that it will be useful,
18 but WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 GNU General Public License for more details.
22 You should have received a copy of the GNU General Public License
23 along with this program. If not, see <http://www.gnu.org/licenses/>.
31 #include "../libcli/security/security.h"
32 #include "lib/util/smb_strtox.h"
33 #include "lib/global_contexts.h"
36 #define DBGC_CLASS DBGC_IDMAP
42 #include "passdb/pdb_ldap_schema.h"
44 struct idmap_ldap_context {
45 struct smbldap_state *smbldap_state;
50 struct idmap_rw_ops *rw_ops;
53 #define CHECK_ALLOC_DONE(mem) do { \
55 DEBUG(0, ("Out of memory!\n")); \
56 ret = NT_STATUS_NO_MEMORY; \
60 /**********************************************************************
61 IDMAP ALLOC TDB BACKEND
62 **********************************************************************/
64 /*********************************************************************
65 ********************************************************************/
67 static NTSTATUS get_credentials( TALLOC_CTX *mem_ctx,
68 struct smbldap_state *ldap_state,
69 struct idmap_domain *dom,
72 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
74 const char *tmp = NULL;
78 /* assume anonymous if we don't have a specified user */
80 tmp = idmap_config_const_string(dom->name, "ldap_user_dn", NULL);
83 secret = idmap_fetch_secret("ldap", dom->name, tmp);
85 DEBUG(0, ("get_credentials: Unable to fetch "
86 "auth credentials for %s in %s\n",
87 tmp, (dom==NULL)?"ALLOC":dom->name));
88 ret = NT_STATUS_ACCESS_DENIED;
91 *dn = talloc_strdup(mem_ctx, tmp);
92 CHECK_ALLOC_DONE(*dn);
94 if (!fetch_ldap_pw(&user_dn, &secret)) {
95 DEBUG(2, ("get_credentials: Failed to lookup ldap "
96 "bind creds. Using anonymous connection.\n"));
100 *dn = talloc_strdup(mem_ctx, user_dn);
101 SAFE_FREE( user_dn );
102 CHECK_ALLOC_DONE(*dn);
106 smbldap_set_creds(ldap_state, anon, *dn, secret);
110 BURN_FREE_STR(secret);
116 /**********************************************************************
117 Verify the sambaUnixIdPool entry in the directory.
118 **********************************************************************/
120 static NTSTATUS verify_idpool(struct idmap_domain *dom)
124 LDAPMessage *result = NULL;
125 LDAPMod **mods = NULL;
126 const char **attr_list;
130 struct idmap_ldap_context *ctx;
132 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
134 mem_ctx = talloc_new(ctx);
135 if (mem_ctx == NULL) {
136 DEBUG(0, ("Out of memory!\n"));
137 return NT_STATUS_NO_MEMORY;
140 filter = talloc_asprintf(mem_ctx, "(objectclass=%s)", LDAP_OBJ_IDPOOL);
141 CHECK_ALLOC_DONE(filter);
143 attr_list = get_attr_list(mem_ctx, idpool_attr_list);
144 CHECK_ALLOC_DONE(attr_list);
146 rc = smbldap_search(ctx->smbldap_state,
154 if (rc != LDAP_SUCCESS) {
155 DEBUG(1, ("Unable to verify the idpool, "
156 "cannot continue initialization!\n"));
157 return NT_STATUS_UNSUCCESSFUL;
160 count = ldap_count_entries(smbldap_get_ldap(ctx->smbldap_state),
163 ldap_msgfree(result);
166 DEBUG(0,("Multiple entries returned from %s (base == %s)\n",
167 filter, ctx->suffix));
168 ret = NT_STATUS_UNSUCCESSFUL;
171 else if (count == 0) {
172 char *uid_str, *gid_str;
174 uid_str = talloc_asprintf(mem_ctx, "%lu",
175 (unsigned long)dom->low_id);
176 gid_str = talloc_asprintf(mem_ctx, "%lu",
177 (unsigned long)dom->low_id);
179 smbldap_set_mod(&mods, LDAP_MOD_ADD,
180 "objectClass", LDAP_OBJ_IDPOOL);
181 smbldap_set_mod(&mods, LDAP_MOD_ADD,
182 get_attr_key2string(idpool_attr_list,
183 LDAP_ATTR_UIDNUMBER),
185 smbldap_set_mod(&mods, LDAP_MOD_ADD,
186 get_attr_key2string(idpool_attr_list,
187 LDAP_ATTR_GIDNUMBER),
190 rc = smbldap_modify(ctx->smbldap_state,
193 ldap_mods_free(mods, True);
195 ret = NT_STATUS_UNSUCCESSFUL;
200 ret = (rc == LDAP_SUCCESS)?NT_STATUS_OK:NT_STATUS_UNSUCCESSFUL;
202 talloc_free(mem_ctx);
206 /********************************
207 Allocate a new uid or gid
208 ********************************/
210 static NTSTATUS idmap_ldap_allocate_id_internal(struct idmap_domain *dom,
214 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
215 int rc = LDAP_SERVER_DOWN;
217 LDAPMessage *result = NULL;
218 LDAPMessage *entry = NULL;
219 LDAPMod **mods = NULL;
223 const char *dn = NULL;
224 const char **attr_list;
226 struct idmap_ldap_context *ctx;
229 /* Only do query if we are online */
230 if (idmap_is_offline()) {
231 return NT_STATUS_FILE_IS_OFFLINE;
234 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
236 mem_ctx = talloc_new(ctx);
238 DEBUG(0, ("Out of memory!\n"));
239 return NT_STATUS_NO_MEMORY;
246 type = get_attr_key2string(idpool_attr_list,
247 LDAP_ATTR_UIDNUMBER);
251 type = get_attr_key2string(idpool_attr_list,
252 LDAP_ATTR_GIDNUMBER);
257 * This is not supported here yet and
258 * already handled in idmap_rw_new_mapping()
261 case ID_TYPE_NOT_SPECIFIED:
263 * This is handled in idmap_rw_new_mapping()
267 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
268 return NT_STATUS_INVALID_PARAMETER;
271 filter = talloc_asprintf(mem_ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
272 CHECK_ALLOC_DONE(filter);
274 attr_list = get_attr_list(mem_ctx, idpool_attr_list);
275 CHECK_ALLOC_DONE(attr_list);
277 DEBUG(10, ("Search of the id pool (filter: %s)\n", filter));
279 rc = smbldap_search(ctx->smbldap_state,
281 LDAP_SCOPE_SUBTREE, filter,
282 attr_list, 0, &result);
284 if (rc != LDAP_SUCCESS) {
285 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
289 smbldap_talloc_autofree_ldapmsg(mem_ctx, result);
291 count = ldap_count_entries(smbldap_get_ldap(ctx->smbldap_state),
294 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
298 entry = ldap_first_entry(smbldap_get_ldap(ctx->smbldap_state), result);
300 dn = smbldap_talloc_dn(mem_ctx,
301 smbldap_get_ldap(ctx->smbldap_state),
307 id_str = smbldap_talloc_single_attribute(
308 smbldap_get_ldap(ctx->smbldap_state),
309 entry, type, mem_ctx);
310 if (id_str == NULL) {
311 DEBUG(0,("%s attribute not found\n", type));
312 ret = NT_STATUS_UNSUCCESSFUL;
316 xid->id = smb_strtoul(id_str, NULL, 10, &error, SMB_STR_STANDARD);
318 ret = NT_STATUS_UNSUCCESSFUL;
322 /* make sure we still have room to grow */
326 if (xid->id > dom->high_id) {
327 DEBUG(0,("Cannot allocate uid above %lu!\n",
328 (unsigned long)dom->high_id));
334 if (xid->id > dom->high_id) {
335 DEBUG(0,("Cannot allocate gid above %lu!\n",
336 (unsigned long)dom->high_id));
346 new_id_str = talloc_asprintf(mem_ctx, "%lu", (unsigned long)xid->id + 1);
348 DEBUG(0,("Out of memory\n"));
349 ret = NT_STATUS_NO_MEMORY;
353 smbldap_set_mod(&mods, LDAP_MOD_DELETE, type, id_str);
354 smbldap_set_mod(&mods, LDAP_MOD_ADD, type, new_id_str);
357 DEBUG(0,("smbldap_set_mod() failed.\n"));
361 DEBUG(10, ("Try to atomically increment the id (%s -> %s)\n",
362 id_str, new_id_str));
364 rc = smbldap_modify(ctx->smbldap_state, dn, mods);
366 ldap_mods_free(mods, True);
368 if (rc != LDAP_SUCCESS) {
369 DEBUG(1,("Failed to allocate new %s. "
370 "smbldap_modify() failed.\n", type));
377 talloc_free(mem_ctx);
382 * Allocate a new unix-ID.
383 * For now this is for the default idmap domain only.
384 * Should be extended later on.
386 static NTSTATUS idmap_ldap_allocate_id(struct idmap_domain *dom,
391 if (!strequal(dom->name, "*")) {
392 DEBUG(3, ("idmap_ldap_allocate_id: "
393 "Refusing allocation of a new unixid for domain'%s'. "
394 "This is only supported for the default "
397 return NT_STATUS_NOT_IMPLEMENTED;
400 ret = idmap_ldap_allocate_id_internal(dom, id);
406 /**********************************************************************
407 IDMAP MAPPING LDAP BACKEND
408 **********************************************************************/
410 static int idmap_ldap_close_destructor(struct idmap_ldap_context *ctx)
412 smbldap_free_struct(&ctx->smbldap_state);
413 DEBUG(5,("The connection to the LDAP server was closed\n"));
414 /* maybe free the results here --metze */
419 /********************************
420 Initialise idmap database.
421 ********************************/
423 static NTSTATUS idmap_ldap_set_mapping(struct idmap_domain *dom,
424 const struct id_map *map);
426 static NTSTATUS idmap_ldap_db_init(struct idmap_domain *dom)
429 struct idmap_ldap_context *ctx = NULL;
430 const char *tmp = NULL;
432 /* Only do init if we are online */
433 if (idmap_is_offline()) {
434 return NT_STATUS_FILE_IS_OFFLINE;
437 ctx = talloc_zero(dom, struct idmap_ldap_context);
439 DEBUG(0, ("Out of memory!\n"));
440 return NT_STATUS_NO_MEMORY;
443 tmp = idmap_config_const_string(dom->name, "ldap_url", NULL);
446 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
447 ret = NT_STATUS_UNSUCCESSFUL;
451 ctx->url = talloc_strdup(ctx, tmp);
453 trim_char(ctx->url, '\"', '\"');
455 tmp = idmap_config_const_string(dom->name, "ldap_base_dn", NULL);
456 if ( ! tmp || ! *tmp) {
457 tmp = lp_ldap_idmap_suffix(talloc_tos());
459 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
460 ret = NT_STATUS_UNSUCCESSFUL;
465 ctx->suffix = talloc_strdup(ctx, tmp);
466 CHECK_ALLOC_DONE(ctx->suffix);
468 ctx->rw_ops = talloc_zero(ctx, struct idmap_rw_ops);
469 CHECK_ALLOC_DONE(ctx->rw_ops);
471 ctx->rw_ops->get_new_id = idmap_ldap_allocate_id_internal;
472 ctx->rw_ops->set_mapping = idmap_ldap_set_mapping;
474 /* get_credentials deals with setting up creds */
476 ret = smbldap_init(ctx, global_event_context(), ctx->url,
477 false, NULL, NULL, &ctx->smbldap_state);
478 if (!NT_STATUS_IS_OK(ret)) {
479 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n", ctx->url));
483 ret = get_credentials( ctx, ctx->smbldap_state,
484 dom, &ctx->user_dn );
485 if ( !NT_STATUS_IS_OK(ret) ) {
486 DEBUG(1,("idmap_ldap_db_init: Failed to get connection "
487 "credentials (%s)\n", nt_errstr(ret)));
492 * Set the destructor on the context, so that resources are
493 * properly freed when the context is released.
495 talloc_set_destructor(ctx, idmap_ldap_close_destructor);
497 dom->private_data = ctx;
499 ret = verify_idpool(dom);
500 if (!NT_STATUS_IS_OK(ret)) {
501 DEBUG(1, ("idmap_ldap_db_init: failed to verify ID pool (%s)\n",
518 /* TODO: change this: This function cannot be called to modify a mapping,
519 * only set a new one */
521 static NTSTATUS idmap_ldap_set_mapping(struct idmap_domain *dom,
522 const struct id_map *map)
526 struct idmap_ldap_context *ctx;
527 LDAPMessage *entry = NULL;
528 LDAPMod **mods = NULL;
531 struct dom_sid_buf sid;
535 /* Only do query if we are online */
536 if (idmap_is_offline()) {
537 return NT_STATUS_FILE_IS_OFFLINE;
540 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
542 switch(map->xid.type) {
544 type = get_attr_key2string(sidmap_attr_list,
545 LDAP_ATTR_UIDNUMBER);
549 type = get_attr_key2string(sidmap_attr_list,
550 LDAP_ATTR_GIDNUMBER);
554 return NT_STATUS_INVALID_PARAMETER;
557 memctx = talloc_new(ctx);
559 DEBUG(0, ("Out of memory!\n"));
560 return NT_STATUS_NO_MEMORY;
563 id_str = talloc_asprintf(memctx, "%lu", (unsigned long)map->xid.id);
564 CHECK_ALLOC_DONE(id_str);
566 dn = talloc_asprintf(memctx, "%s=%s,%s",
567 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
568 dom_sid_str_buf(map->sid, &sid),
570 CHECK_ALLOC_DONE(dn);
572 smbldap_set_mod(&mods, LDAP_MOD_ADD,
573 "objectClass", LDAP_OBJ_IDMAP_ENTRY);
575 smbldap_make_mod(smbldap_get_ldap(ctx->smbldap_state),
576 entry, &mods, type, id_str);
578 smbldap_make_mod(smbldap_get_ldap(ctx->smbldap_state), entry, &mods,
579 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
583 DEBUG(2, ("ERROR: No mods?\n"));
584 ret = NT_STATUS_UNSUCCESSFUL;
588 /* TODO: remove conflicting mappings! */
590 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SID_ENTRY);
592 DEBUG(10, ("Set DN %s (%s -> %s)\n", dn, sid.buf, id_str));
594 rc = smbldap_add(ctx->smbldap_state, dn, mods);
595 ldap_mods_free(mods, True);
597 if (rc != LDAP_SUCCESS) {
598 char *ld_error = NULL;
599 ldap_get_option(smbldap_get_ldap(ctx->smbldap_state),
600 LDAP_OPT_ERROR_STRING, &ld_error);
601 DEBUG(0,("ldap_set_mapping_internals: Failed to add %s to %lu "
602 "mapping [%s]\n", sid.buf,
603 (unsigned long)map->xid.id, type));
604 DEBUG(0, ("ldap_set_mapping_internals: Error was: %s (%s)\n",
605 ld_error ? ld_error : "(NULL)", ldap_err2string (rc)));
607 ldap_memfree(ld_error);
609 ret = NT_STATUS_UNSUCCESSFUL;
613 DEBUG(10,("ldap_set_mapping: Successfully created mapping from %s to "
614 "%lu [%s]\n", sid.buf, (unsigned long)map->xid.id, type));
624 * Create a new mapping for an unmapped SID, also allocating a new ID.
625 * If possible, this should be run inside a transaction to make the
628 static NTSTATUS idmap_ldap_new_mapping(struct idmap_domain *dom, struct id_map *map)
631 struct idmap_ldap_context *ctx;
633 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
635 ret = idmap_rw_new_mapping(dom, ctx->rw_ops, map);
640 /**********************************
641 lookup a set of unix ids.
642 **********************************/
644 static NTSTATUS idmap_ldap_unixids_to_sids(struct idmap_domain *dom,
649 struct idmap_ldap_context *ctx;
650 LDAPMessage *result = NULL;
651 LDAPMessage *entry = NULL;
652 const char *uidNumber;
653 const char *gidNumber;
654 const char **attr_list;
664 /* Only do query if we are online */
665 if (idmap_is_offline()) {
666 return NT_STATUS_FILE_IS_OFFLINE;
669 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
671 memctx = talloc_new(ctx);
673 DEBUG(0, ("Out of memory!\n"));
674 return NT_STATUS_NO_MEMORY;
677 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
678 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
680 attr_list = get_attr_list(memctx, sidmap_attr_list);
683 /* if we are requested just one mapping use the simple filter */
685 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%lu))",
686 LDAP_OBJ_IDMAP_ENTRY,
687 (ids[0]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
688 (unsigned long)ids[0]->xid.id);
689 CHECK_ALLOC_DONE(filter);
690 DEBUG(10, ("Filter: [%s]\n", filter));
692 /* multiple mappings */
696 for (i = 0; ids[i]; i++) {
697 ids[i]->status = ID_UNKNOWN;
704 filter = talloc_asprintf(memctx,
705 "(&(objectClass=%s)(|",
706 LDAP_OBJ_IDMAP_ENTRY);
707 CHECK_ALLOC_DONE(filter);
710 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
711 filter = talloc_asprintf_append_buffer(filter, "(%s=%lu)",
712 (ids[idx]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
713 (unsigned long)ids[idx]->xid.id);
714 CHECK_ALLOC_DONE(filter);
716 filter = talloc_asprintf_append_buffer(filter, "))");
717 CHECK_ALLOC_DONE(filter);
718 DEBUG(10, ("Filter: [%s]\n", filter));
724 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
725 filter, attr_list, 0, &result);
727 if (rc != LDAP_SUCCESS) {
728 DEBUG(3,("Failure looking up ids (%s)\n", ldap_err2string(rc)));
729 ret = NT_STATUS_UNSUCCESSFUL;
733 count = ldap_count_entries(smbldap_get_ldap(ctx->smbldap_state),
737 DEBUG(10, ("NO SIDs found\n"));
740 for (i = 0; i < count; i++) {
746 struct dom_sid_buf buf;
748 if (i == 0) { /* first entry */
749 entry = ldap_first_entry(
750 smbldap_get_ldap(ctx->smbldap_state), result);
751 } else { /* following ones */
752 entry = ldap_next_entry(
753 smbldap_get_ldap(ctx->smbldap_state), entry);
756 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
761 /* first check if the SID is present */
762 sidstr = smbldap_talloc_single_attribute(
763 smbldap_get_ldap(ctx->smbldap_state),
764 entry, LDAP_ATTRIBUTE_SID, memctx);
765 if ( ! sidstr) { /* no sid, skip entry */
766 DEBUG(2, ("WARNING SID not found on entry\n"));
770 /* now try to see if it is a uid, if not try with a gid
771 * (gid is more common, but in case both uidNumber and
772 * gidNumber are returned the SID is mapped to the uid
775 tmp = smbldap_talloc_single_attribute(
776 smbldap_get_ldap(ctx->smbldap_state),
777 entry, uidNumber, memctx);
780 tmp = smbldap_talloc_single_attribute(
781 smbldap_get_ldap(ctx->smbldap_state),
782 entry, gidNumber, memctx);
784 if ( ! tmp) { /* wow very strange entry, how did it match ? */
785 DEBUG(5, ("Improbable match on (%s), no uidNumber, "
786 "nor gidNumber returned\n", sidstr));
791 id = smb_strtoul(tmp, NULL, 10, &error, SMB_STR_STANDARD);
794 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
796 dom->low_id, dom->high_id));
801 if (!idmap_unix_id_is_in_range(id, dom)) {
802 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
804 dom->low_id, dom->high_id));
809 map = idmap_find_map_by_id(&ids[bidx], type, id);
811 DEBUG(2, ("WARNING: couldn't match sid (%s) "
812 "with requested ids\n", sidstr));
817 if ( ! string_to_sid(map->sid, sidstr)) {
818 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
823 if (map->status == ID_MAPPED) {
824 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
825 "overwriting mapping %u -> %s with %u -> %s\n",
826 (type == ID_TYPE_UID) ? "UID" : "GID",
828 dom_sid_str_buf(map->sid, &buf),
836 map->status = ID_MAPPED;
838 DEBUG(10, ("Mapped %s -> %lu (%d)\n",
839 dom_sid_str_buf(map->sid, &buf),
840 (unsigned long)map->xid.id, map->xid.type));
843 /* free the ldap results */
845 ldap_msgfree(result);
849 if (multi && ids[idx]) { /* still some values to map */
855 /* mark all unknown/expired ones as unmapped */
856 for (i = 0; ids[i]; i++) {
857 if (ids[i]->status != ID_MAPPED)
858 ids[i]->status = ID_UNMAPPED;
866 /**********************************
867 lookup a set of sids.
868 **********************************/
870 static NTSTATUS idmap_ldap_sids_to_unixids(struct idmap_domain *dom,
873 LDAPMessage *entry = NULL;
876 struct idmap_ldap_context *ctx;
877 LDAPMessage *result = NULL;
878 const char *uidNumber;
879 const char *gidNumber;
880 const char **attr_list;
883 size_t num_required = 0;
890 /* Only do query if we are online */
891 if (idmap_is_offline()) {
892 return NT_STATUS_FILE_IS_OFFLINE;
895 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
897 memctx = talloc_new(ctx);
899 DEBUG(0, ("Out of memory!\n"));
900 return NT_STATUS_NO_MEMORY;
903 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
904 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
906 attr_list = get_attr_list(memctx, sidmap_attr_list);
909 struct dom_sid_buf buf;
910 /* if we are requested just one mapping use the simple filter */
912 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%s))",
913 LDAP_OBJ_IDMAP_ENTRY,
915 dom_sid_str_buf(ids[0]->sid, &buf));
916 CHECK_ALLOC_DONE(filter);
917 DEBUG(10, ("Filter: [%s]\n", filter));
919 /* multiple mappings */
923 for (i = 0; ids[i]; i++) {
924 ids[i]->status = ID_UNKNOWN;
931 filter = talloc_asprintf(memctx,
932 "(&(objectClass=%s)(|",
933 LDAP_OBJ_IDMAP_ENTRY);
934 CHECK_ALLOC_DONE(filter);
937 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
938 struct dom_sid_buf buf;
939 filter = talloc_asprintf_append_buffer(filter, "("LDAP_ATTRIBUTE_SID"=%s)",
940 dom_sid_str_buf(ids[idx]->sid, &buf));
941 CHECK_ALLOC_DONE(filter);
943 filter = talloc_asprintf_append_buffer(filter, "))");
944 CHECK_ALLOC_DONE(filter);
945 DEBUG(10, ("Filter: [%s]\n", filter));
951 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
952 filter, attr_list, 0, &result);
954 if (rc != LDAP_SUCCESS) {
955 DEBUG(3,("Failure looking up sids (%s)\n",
956 ldap_err2string(rc)));
957 ret = NT_STATUS_UNSUCCESSFUL;
961 count = ldap_count_entries(smbldap_get_ldap(ctx->smbldap_state),
965 DEBUG(10, ("NO SIDs found\n"));
968 for (i = 0; i < count; i++) {
974 struct dom_sid_buf buf;
978 if (i == 0) { /* first entry */
979 entry = ldap_first_entry(
980 smbldap_get_ldap(ctx->smbldap_state), result);
981 } else { /* following ones */
982 entry = ldap_next_entry(
983 smbldap_get_ldap(ctx->smbldap_state), entry);
986 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
991 /* first check if the SID is present */
992 sidstr = smbldap_talloc_single_attribute(
993 smbldap_get_ldap(ctx->smbldap_state),
994 entry, LDAP_ATTRIBUTE_SID, memctx);
995 if ( ! sidstr) { /* no sid ??, skip entry */
996 DEBUG(2, ("WARNING SID not found on entry\n"));
1000 if ( ! string_to_sid(&sid, sidstr)) {
1001 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1002 TALLOC_FREE(sidstr);
1006 map = idmap_find_map_by_sid(&ids[bidx], &sid);
1008 DEBUG(2, ("WARNING: couldn't find entry sid (%s) "
1009 "in ids\n", sidstr));
1010 TALLOC_FREE(sidstr);
1014 /* now try to see if it is a uid, if not try with a gid
1015 * (gid is more common, but in case both uidNumber and
1016 * gidNumber are returned the SID is mapped to the uid
1019 tmp = smbldap_talloc_single_attribute(
1020 smbldap_get_ldap(ctx->smbldap_state),
1021 entry, uidNumber, memctx);
1024 tmp = smbldap_talloc_single_attribute(
1025 smbldap_get_ldap(ctx->smbldap_state),
1026 entry, gidNumber, memctx);
1028 if ( ! tmp) { /* no ids ?? */
1029 DEBUG(5, ("no uidNumber, "
1030 "nor gidNumber attributes found\n"));
1031 TALLOC_FREE(sidstr);
1035 id = smb_strtoul(tmp, NULL, 10, &error, SMB_STR_STANDARD);
1038 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1040 dom->low_id, dom->high_id));
1041 TALLOC_FREE(sidstr);
1045 if (error != 0 || !idmap_unix_id_is_in_range(id, dom)) {
1046 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1048 dom->low_id, dom->high_id));
1049 TALLOC_FREE(sidstr);
1053 if (map->status == ID_MAPPED) {
1054 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
1055 "overwriting mapping %s -> %u with %s -> %u\n",
1056 (type == ID_TYPE_UID) ? "UID" : "GID",
1057 sidstr, map->xid.id, sidstr, id));
1060 TALLOC_FREE(sidstr);
1063 map->xid.type = type;
1065 map->status = ID_MAPPED;
1067 DEBUG(10, ("Mapped %s -> %lu (%d)\n",
1068 dom_sid_str_buf(map->sid, &buf),
1069 (unsigned long)map->xid.id,
1073 /* free the ldap results */
1075 ldap_msgfree(result);
1079 if (multi && ids[idx]) { /* still some values to map */
1084 * try to create new mappings for unmapped sids
1086 for (i = 0; ids[i]; i++) {
1087 if (ids[i]->status != ID_MAPPED) {
1088 ids[i]->status = ID_UNMAPPED;
1089 if (ids[i]->sid != NULL) {
1090 ret = idmap_ldap_new_mapping(dom, ids[i]);
1091 DBG_DEBUG("idmap_ldap_new_mapping returned %s\n",
1093 if (NT_STATUS_EQUAL(ret, STATUS_SOME_UNMAPPED)) {
1094 if (ids[i]->status == ID_REQUIRE_TYPE) {
1099 if (!NT_STATUS_IS_OK(ret)) {
1101 * If we can't create
1102 * a new mapping it's unlikely
1103 * that it will work for the
1113 if (num_required > 0) {
1114 ret = STATUS_SOME_UNMAPPED;
1118 talloc_free(memctx);
1122 /**********************************
1123 Close the idmap ldap instance
1124 **********************************/
1126 static const struct idmap_methods idmap_ldap_methods = {
1128 .init = idmap_ldap_db_init,
1129 .unixids_to_sids = idmap_ldap_unixids_to_sids,
1130 .sids_to_unixids = idmap_ldap_sids_to_unixids,
1131 .allocate_id = idmap_ldap_allocate_id,
1134 NTSTATUS idmap_ldap_init(TALLOC_CTX *);
1135 NTSTATUS idmap_ldap_init(TALLOC_CTX *ctx)
1137 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "ldap",
1138 &idmap_ldap_methods);