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
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 3 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, see <http://www.gnu.org/licenses/>.
29 #define DBGC_CLASS DBGC_IDMAP
36 static char *idmap_fetch_secret(const char *backend, bool alloc,
37 const char *domain, const char *identity)
43 r = asprintf(&tmp, "IDMAP_ALLOC_%s", backend);
45 r = asprintf(&tmp, "IDMAP_%s_%s", backend, domain);
51 strupper_m(tmp); /* make sure the key is case insensitive */
52 ret = secrets_fetch_generic(tmp, identity);
59 struct idmap_ldap_alloc_context {
60 struct smbldap_state *smbldap_state;
66 struct idmap_ldap_context {
67 struct smbldap_state *smbldap_state;
72 struct idmap_ldap_alloc_context *alloc;
75 #define CHECK_ALLOC_DONE(mem) do { \
77 DEBUG(0, ("Out of memory!\n")); \
78 ret = NT_STATUS_NO_MEMORY; \
82 /**********************************************************************
83 IDMAP ALLOC TDB BACKEND
84 **********************************************************************/
86 /*********************************************************************
87 ********************************************************************/
89 static NTSTATUS get_credentials( TALLOC_CTX *mem_ctx,
90 struct smbldap_state *ldap_state,
91 const char *config_option,
92 struct idmap_domain *dom,
95 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
97 const char *tmp = NULL;
101 /* assume anonymous if we don't have a specified user */
103 tmp = lp_parm_const_string(-1, config_option, "ldap_user_dn", NULL);
107 /* only the alloc backend can pass in a NULL dom */
108 secret = idmap_fetch_secret("ldap", True,
111 secret = idmap_fetch_secret("ldap", False,
116 DEBUG(0, ("get_credentials: Unable to fetch "
117 "auth credentials for %s in %s\n",
118 tmp, (dom==NULL)?"ALLOC":dom->name));
119 ret = NT_STATUS_ACCESS_DENIED;
122 *dn = talloc_strdup(mem_ctx, tmp);
123 CHECK_ALLOC_DONE(*dn);
125 if (!fetch_ldap_pw(&user_dn, &secret)) {
126 DEBUG(2, ("get_credentials: Failed to lookup ldap "
127 "bind creds. Using anonymous connection.\n"));
130 *dn = talloc_strdup(mem_ctx, user_dn);
131 SAFE_FREE( user_dn );
132 CHECK_ALLOC_DONE(*dn);
136 smbldap_set_creds(ldap_state, anon, *dn, secret);
146 /**********************************************************************
147 Verify the sambaUnixIdPool entry in the directory.
148 **********************************************************************/
150 static NTSTATUS verify_idpool(struct idmap_domain *dom)
154 LDAPMessage *result = NULL;
155 LDAPMod **mods = NULL;
156 const char **attr_list;
160 struct idmap_ldap_context *ctx;
162 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
165 return NT_STATUS_UNSUCCESSFUL;
168 mem_ctx = talloc_new(ctx->alloc);
169 if (mem_ctx == NULL) {
170 DEBUG(0, ("Out of memory!\n"));
171 return NT_STATUS_NO_MEMORY;
174 filter = talloc_asprintf(mem_ctx, "(objectclass=%s)", LDAP_OBJ_IDPOOL);
175 CHECK_ALLOC_DONE(filter);
177 attr_list = get_attr_list(mem_ctx, idpool_attr_list);
178 CHECK_ALLOC_DONE(attr_list);
180 rc = smbldap_search(ctx->alloc->smbldap_state,
188 if (rc != LDAP_SUCCESS) {
189 DEBUG(1, ("Unable to verify the idpool, "
190 "cannot continue initialization!\n"));
191 return NT_STATUS_UNSUCCESSFUL;
194 count = ldap_count_entries(ctx->alloc->smbldap_state->ldap_struct,
197 ldap_msgfree(result);
200 DEBUG(0,("Multiple entries returned from %s (base == %s)\n",
201 filter, ctx->alloc->suffix));
202 ret = NT_STATUS_UNSUCCESSFUL;
205 else if (count == 0) {
206 char *uid_str, *gid_str;
208 uid_str = talloc_asprintf(mem_ctx, "%lu",
209 (unsigned long)dom->low_id);
210 gid_str = talloc_asprintf(mem_ctx, "%lu",
211 (unsigned long)dom->low_id);
213 smbldap_set_mod(&mods, LDAP_MOD_ADD,
214 "objectClass", LDAP_OBJ_IDPOOL);
215 smbldap_set_mod(&mods, LDAP_MOD_ADD,
216 get_attr_key2string(idpool_attr_list,
217 LDAP_ATTR_UIDNUMBER),
219 smbldap_set_mod(&mods, LDAP_MOD_ADD,
220 get_attr_key2string(idpool_attr_list,
221 LDAP_ATTR_GIDNUMBER),
224 rc = smbldap_modify(ctx->alloc->smbldap_state,
227 ldap_mods_free(mods, True);
229 ret = NT_STATUS_UNSUCCESSFUL;
234 ret = (rc == LDAP_SUCCESS)?NT_STATUS_OK:NT_STATUS_UNSUCCESSFUL;
236 talloc_free(mem_ctx);
240 /*****************************************************************************
241 Initialise idmap database.
242 *****************************************************************************/
244 static int idmap_ldap_alloc_close_destructor(struct idmap_ldap_alloc_context *ctx)
246 smbldap_free_struct(&ctx->smbldap_state);
247 DEBUG(5,("The connection to the LDAP server was closed\n"));
248 /* maybe free the results here --metze */
252 static NTSTATUS idmap_ldap_alloc_init(struct idmap_domain *dom,
255 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
257 struct idmap_ldap_context *ctx;
259 /* Only do init if we are online */
260 if (idmap_is_offline()) {
261 return NT_STATUS_FILE_IS_OFFLINE;
264 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
266 ctx->alloc = talloc_zero(ctx, struct idmap_ldap_alloc_context);
267 CHECK_ALLOC_DONE(ctx->alloc);
269 if (params && *params) {
270 /* assume location is the only parameter */
271 ctx->alloc->url = talloc_strdup(ctx->alloc, params);
273 tmp = lp_parm_const_string(-1, "idmap alloc config",
277 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
278 ret = NT_STATUS_UNSUCCESSFUL;
282 ctx->alloc->url = talloc_strdup(ctx->alloc, tmp);
284 CHECK_ALLOC_DONE(ctx->alloc->url);
286 trim_char(ctx->alloc->url, '\"', '\"');
288 tmp = lp_parm_const_string(-1, "idmap alloc config",
289 "ldap_base_dn", NULL);
290 if ( ! tmp || ! *tmp) {
291 tmp = lp_ldap_idmap_suffix();
293 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
294 ret = NT_STATUS_UNSUCCESSFUL;
299 ctx->alloc->suffix = talloc_strdup(ctx->alloc, tmp);
300 CHECK_ALLOC_DONE(ctx->alloc->suffix);
302 ret = smbldap_init(ctx->alloc, winbind_event_context(),
304 &ctx->alloc->smbldap_state);
305 if (!NT_STATUS_IS_OK(ret)) {
306 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n",
311 talloc_set_destructor(ctx->alloc, idmap_ldap_alloc_close_destructor);
313 ret = get_credentials(ctx->alloc,
314 ctx->alloc->smbldap_state,
315 "idmap alloc config", NULL,
316 &ctx->alloc->user_dn);
317 if ( !NT_STATUS_IS_OK(ret) ) {
318 DEBUG(1,("idmap_ldap_alloc_init: Failed to get connection "
319 "credentials (%s)\n", nt_errstr(ret)));
323 /* see if the idmap suffix and sub entries exists */
325 ret = verify_idpool(dom);
328 if ( !NT_STATUS_IS_OK( ret ) )
329 TALLOC_FREE(ctx->alloc);
334 /********************************
335 Allocate a new uid or gid
336 ********************************/
338 static NTSTATUS idmap_ldap_allocate_id(struct idmap_domain *dom,
342 NTSTATUS ret = NT_STATUS_UNSUCCESSFUL;
343 int rc = LDAP_SERVER_DOWN;
345 LDAPMessage *result = NULL;
346 LDAPMessage *entry = NULL;
347 LDAPMod **mods = NULL;
351 const char *dn = NULL;
352 const char **attr_list;
354 struct idmap_ldap_context *ctx;
356 /* Only do query if we are online */
357 if (idmap_is_offline()) {
358 return NT_STATUS_FILE_IS_OFFLINE;
361 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
364 return NT_STATUS_UNSUCCESSFUL;
367 mem_ctx = talloc_new(ctx->alloc);
369 DEBUG(0, ("Out of memory!\n"));
370 return NT_STATUS_NO_MEMORY;
377 type = get_attr_key2string(idpool_attr_list,
378 LDAP_ATTR_UIDNUMBER);
382 type = get_attr_key2string(idpool_attr_list,
383 LDAP_ATTR_GIDNUMBER);
387 DEBUG(2, ("Invalid ID type (0x%x)\n", xid->type));
388 return NT_STATUS_INVALID_PARAMETER;
391 filter = talloc_asprintf(mem_ctx, "(objectClass=%s)", LDAP_OBJ_IDPOOL);
392 CHECK_ALLOC_DONE(filter);
394 attr_list = get_attr_list(mem_ctx, idpool_attr_list);
395 CHECK_ALLOC_DONE(attr_list);
397 DEBUG(10, ("Search of the id pool (filter: %s)\n", filter));
399 rc = smbldap_search(ctx->alloc->smbldap_state,
401 LDAP_SCOPE_SUBTREE, filter,
402 attr_list, 0, &result);
404 if (rc != LDAP_SUCCESS) {
405 DEBUG(0,("%s object not found\n", LDAP_OBJ_IDPOOL));
409 talloc_autofree_ldapmsg(mem_ctx, result);
411 count = ldap_count_entries(ctx->alloc->smbldap_state->ldap_struct,
414 DEBUG(0,("Single %s object not found\n", LDAP_OBJ_IDPOOL));
418 entry = ldap_first_entry(ctx->alloc->smbldap_state->ldap_struct,
421 dn = smbldap_talloc_dn(mem_ctx,
422 ctx->alloc->smbldap_state->ldap_struct,
428 id_str = smbldap_talloc_single_attribute(
429 ctx->alloc->smbldap_state->ldap_struct,
430 entry, type, mem_ctx);
431 if (id_str == NULL) {
432 DEBUG(0,("%s attribute not found\n", type));
436 DEBUG(0,("Out of memory\n"));
437 ret = NT_STATUS_NO_MEMORY;
441 xid->id = strtoul(id_str, NULL, 10);
443 /* make sure we still have room to grow */
447 if (xid->id > dom->high_id) {
448 DEBUG(0,("Cannot allocate uid above %lu!\n",
449 (unsigned long)dom->high_id));
455 if (xid->id > dom->high_id) {
456 DEBUG(0,("Cannot allocate gid above %lu!\n",
457 (unsigned long)dom->high_id));
467 new_id_str = talloc_asprintf(mem_ctx, "%lu", (unsigned long)xid->id + 1);
469 DEBUG(0,("Out of memory\n"));
470 ret = NT_STATUS_NO_MEMORY;
474 smbldap_set_mod(&mods, LDAP_MOD_DELETE, type, id_str);
475 smbldap_set_mod(&mods, LDAP_MOD_ADD, type, new_id_str);
478 DEBUG(0,("smbldap_set_mod() failed.\n"));
482 DEBUG(10, ("Try to atomically increment the id (%s -> %s)\n",
483 id_str, new_id_str));
485 rc = smbldap_modify(ctx->alloc->smbldap_state, dn, mods);
487 ldap_mods_free(mods, True);
489 if (rc != LDAP_SUCCESS) {
490 DEBUG(1,("Failed to allocate new %s. "
491 "smbldap_modify() failed.\n", type));
498 talloc_free(mem_ctx);
502 /**********************************************************************
503 IDMAP MAPPING LDAP BACKEND
504 **********************************************************************/
506 static int idmap_ldap_close_destructor(struct idmap_ldap_context *ctx)
508 smbldap_free_struct(&ctx->smbldap_state);
509 DEBUG(5,("The connection to the LDAP server was closed\n"));
510 /* maybe free the results here --metze */
515 /********************************
516 Initialise idmap database.
517 ********************************/
519 static NTSTATUS idmap_ldap_db_init(struct idmap_domain *dom,
523 struct idmap_ldap_context *ctx = NULL;
524 char *config_option = NULL;
525 const char *tmp = NULL;
527 /* Only do init if we are online */
528 if (idmap_is_offline()) {
529 return NT_STATUS_FILE_IS_OFFLINE;
532 ctx = TALLOC_ZERO_P(dom, struct idmap_ldap_context);
534 DEBUG(0, ("Out of memory!\n"));
535 return NT_STATUS_NO_MEMORY;
538 if (strequal(dom->name, "*")) {
539 /* more specific configuration can go here */
541 config_option = talloc_asprintf(ctx, "idmap config %s", dom->name);
542 if ( ! config_option) {
543 DEBUG(0, ("Out of memory!\n"));
544 ret = NT_STATUS_NO_MEMORY;
549 if (params != NULL) {
550 /* assume location is the only parameter */
551 ctx->url = talloc_strdup(ctx, params);
553 tmp = lp_parm_const_string(-1, config_option, "ldap_url", NULL);
556 DEBUG(1, ("ERROR: missing idmap ldap url\n"));
557 ret = NT_STATUS_UNSUCCESSFUL;
561 ctx->url = talloc_strdup(ctx, tmp);
563 CHECK_ALLOC_DONE(ctx->url);
565 trim_char(ctx->url, '\"', '\"');
567 tmp = lp_parm_const_string(-1, config_option, "ldap_base_dn", NULL);
568 if ( ! tmp || ! *tmp) {
569 tmp = lp_ldap_idmap_suffix();
571 DEBUG(1, ("ERROR: missing idmap ldap suffix\n"));
572 ret = NT_STATUS_UNSUCCESSFUL;
577 ctx->suffix = talloc_strdup(ctx, tmp);
578 CHECK_ALLOC_DONE(ctx->suffix);
580 ret = smbldap_init(ctx, winbind_event_context(), ctx->url,
581 &ctx->smbldap_state);
582 if (!NT_STATUS_IS_OK(ret)) {
583 DEBUG(1, ("ERROR: smbldap_init (%s) failed!\n", ctx->url));
587 ret = get_credentials( ctx, ctx->smbldap_state, config_option,
588 dom, &ctx->user_dn );
589 if ( !NT_STATUS_IS_OK(ret) ) {
590 DEBUG(1,("idmap_ldap_db_init: Failed to get connection "
591 "credentials (%s)\n", nt_errstr(ret)));
595 /* set the destructor on the context, so that resource are properly
596 freed if the contexts is released */
598 talloc_set_destructor(ctx, idmap_ldap_close_destructor);
600 dom->private_data = ctx;
602 ret = idmap_ldap_alloc_init(dom, params);
603 if (!NT_STATUS_IS_OK(ret)) {
604 DEBUG(1, ("idmap_ldap_db_init: Failed to initialize alloc "
605 "subsystem: %s\n", nt_errstr(ret)));
609 talloc_free(config_option);
618 /* max number of ids requested per batch query */
619 #define IDMAP_LDAP_MAX_IDS 30
621 /**********************************
622 lookup a set of unix ids.
623 **********************************/
625 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
626 * in maps for a match */
627 static struct id_map *find_map_by_id(struct id_map **maps,
633 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
634 if (maps[i] == NULL) { /* end of the run */
637 if ((maps[i]->xid.type == type) && (maps[i]->xid.id == id)) {
645 static NTSTATUS idmap_ldap_unixids_to_sids(struct idmap_domain *dom,
650 struct idmap_ldap_context *ctx;
651 LDAPMessage *result = NULL;
652 LDAPMessage *entry = NULL;
653 const char *uidNumber;
654 const char *gidNumber;
655 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(ctx->smbldap_state->ldap_struct, result);
736 DEBUG(10, ("NO SIDs found\n"));
739 for (i = 0; i < count; i++) {
746 if (i == 0) { /* first entry */
747 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
749 } else { /* following ones */
750 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
754 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
759 /* first check if the SID is present */
760 sidstr = smbldap_talloc_single_attribute(
761 ctx->smbldap_state->ldap_struct,
762 entry, LDAP_ATTRIBUTE_SID, memctx);
763 if ( ! sidstr) { /* no sid, skip entry */
764 DEBUG(2, ("WARNING SID not found on entry\n"));
768 /* now try to see if it is a uid, if not try with a gid
769 * (gid is more common, but in case both uidNumber and
770 * gidNumber are returned the SID is mapped to the uid
773 tmp = smbldap_talloc_single_attribute(
774 ctx->smbldap_state->ldap_struct,
775 entry, uidNumber, memctx);
778 tmp = smbldap_talloc_single_attribute(
779 ctx->smbldap_state->ldap_struct,
780 entry, gidNumber, memctx);
782 if ( ! tmp) { /* wow very strange entry, how did it match ? */
783 DEBUG(5, ("Unprobable match on (%s), no uidNumber, "
784 "nor gidNumber returned\n", sidstr));
789 id = strtoul(tmp, NULL, 10);
790 if (!idmap_unix_id_is_in_range(id, dom)) {
791 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
793 dom->low_id, dom->high_id));
800 map = find_map_by_id(&ids[bidx], type, id);
802 DEBUG(2, ("WARNING: couldn't match sid (%s) "
803 "with requested ids\n", sidstr));
808 if ( ! string_to_sid(map->sid, sidstr)) {
809 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
814 if (map->status == ID_MAPPED) {
815 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
816 "overwriting mapping %u -> %s with %u -> %s\n",
817 (type == ID_TYPE_UID) ? "UID" : "GID",
818 id, sid_string_dbg(map->sid), id, sidstr));
824 map->status = ID_MAPPED;
826 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
827 (unsigned long)map->xid.id, map->xid.type));
830 /* free the ldap results */
832 ldap_msgfree(result);
836 if (multi && ids[idx]) { /* still some values to map */
842 /* mark all unknwon/expired ones as unmapped */
843 for (i = 0; ids[i]; i++) {
844 if (ids[i]->status != ID_MAPPED)
845 ids[i]->status = ID_UNMAPPED;
853 /**********************************
854 lookup a set of sids.
855 **********************************/
857 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
858 * in maps for a match */
859 static struct id_map *find_map_by_sid(struct id_map **maps, DOM_SID *sid)
863 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
864 if (maps[i] == NULL) { /* end of the run */
867 if (sid_equal(maps[i]->sid, sid)) {
875 static NTSTATUS idmap_ldap_sids_to_unixids(struct idmap_domain *dom,
878 LDAPMessage *entry = NULL;
881 struct idmap_ldap_context *ctx;
882 LDAPMessage *result = NULL;
883 const char *uidNumber;
884 const char *gidNumber;
885 const char **attr_list;
894 /* Only do query if we are online */
895 if (idmap_is_offline()) {
896 return NT_STATUS_FILE_IS_OFFLINE;
899 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
901 memctx = talloc_new(ctx);
903 DEBUG(0, ("Out of memory!\n"));
904 return NT_STATUS_NO_MEMORY;
907 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
908 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
910 attr_list = get_attr_list(memctx, sidmap_attr_list);
913 /* if we are requested just one mapping use the simple filter */
915 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%s))",
916 LDAP_OBJ_IDMAP_ENTRY,
918 sid_string_talloc(memctx, ids[0]->sid));
919 CHECK_ALLOC_DONE(filter);
920 DEBUG(10, ("Filter: [%s]\n", filter));
922 /* multiple mappings */
926 for (i = 0; ids[i]; i++) {
927 ids[i]->status = ID_UNKNOWN;
934 filter = talloc_asprintf(memctx,
935 "(&(objectClass=%s)(|",
936 LDAP_OBJ_IDMAP_ENTRY);
937 CHECK_ALLOC_DONE(filter);
940 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
941 filter = talloc_asprintf_append_buffer(filter, "(%s=%s)",
943 sid_string_talloc(memctx,
945 CHECK_ALLOC_DONE(filter);
947 filter = talloc_asprintf_append_buffer(filter, "))");
948 CHECK_ALLOC_DONE(filter);
949 DEBUG(10, ("Filter: [%s]", filter));
955 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
956 filter, attr_list, 0, &result);
958 if (rc != LDAP_SUCCESS) {
959 DEBUG(3,("Failure looking up sids (%s)\n",
960 ldap_err2string(rc)));
961 ret = NT_STATUS_UNSUCCESSFUL;
965 count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
968 DEBUG(10, ("NO SIDs found\n"));
971 for (i = 0; i < count; i++) {
979 if (i == 0) { /* first entry */
980 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
982 } else { /* following ones */
983 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
987 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
992 /* first check if the SID is present */
993 sidstr = smbldap_talloc_single_attribute(
994 ctx->smbldap_state->ldap_struct,
995 entry, LDAP_ATTRIBUTE_SID, memctx);
996 if ( ! sidstr) { /* no sid ??, skip entry */
997 DEBUG(2, ("WARNING SID not found on entry\n"));
1001 if ( ! string_to_sid(&sid, sidstr)) {
1002 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1003 TALLOC_FREE(sidstr);
1007 map = find_map_by_sid(&ids[bidx], &sid);
1009 DEBUG(2, ("WARNING: couldn't find entry sid (%s) "
1011 TALLOC_FREE(sidstr);
1015 /* now try to see if it is a uid, if not try with a gid
1016 * (gid is more common, but in case both uidNumber and
1017 * gidNumber are returned the SID is mapped to the uid
1020 tmp = smbldap_talloc_single_attribute(
1021 ctx->smbldap_state->ldap_struct,
1022 entry, uidNumber, memctx);
1025 tmp = smbldap_talloc_single_attribute(
1026 ctx->smbldap_state->ldap_struct,
1027 entry, gidNumber, memctx);
1029 if ( ! tmp) { /* no ids ?? */
1030 DEBUG(5, ("no uidNumber, "
1031 "nor gidNumber attributes found\n"));
1032 TALLOC_FREE(sidstr);
1036 id = strtoul(tmp, NULL, 10);
1037 if (!idmap_unix_id_is_in_range(id, dom)) {
1038 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1040 dom->low_id, dom->high_id));
1041 TALLOC_FREE(sidstr);
1047 if (map->status == ID_MAPPED) {
1048 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
1049 "overwriting mapping %s -> %u with %s -> %u\n",
1050 (type == ID_TYPE_UID) ? "UID" : "GID",
1051 sidstr, map->xid.id, sidstr, id));
1054 TALLOC_FREE(sidstr);
1057 map->xid.type = type;
1059 map->status = ID_MAPPED;
1061 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
1062 (unsigned long)map->xid.id, map->xid.type));
1065 /* free the ldap results */
1067 ldap_msgfree(result);
1071 if (multi && ids[idx]) { /* still some values to map */
1077 /* mark all unknwon/expired ones as unmapped */
1078 for (i = 0; ids[i]; i++) {
1079 if (ids[i]->status != ID_MAPPED)
1080 ids[i]->status = ID_UNMAPPED;
1084 talloc_free(memctx);
1088 /**********************************
1090 **********************************/
1092 /* TODO: change this: This function cannot be called to modify a mapping,
1093 * only set a new one */
1095 static NTSTATUS idmap_ldap_set_mapping(struct idmap_domain *dom,
1096 const struct id_map *map)
1100 struct idmap_ldap_context *ctx;
1101 LDAPMessage *entry = NULL;
1102 LDAPMod **mods = NULL;
1109 /* Only do query if we are online */
1110 if (idmap_is_offline()) {
1111 return NT_STATUS_FILE_IS_OFFLINE;
1114 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
1116 switch(map->xid.type) {
1118 type = get_attr_key2string(sidmap_attr_list,
1119 LDAP_ATTR_UIDNUMBER);
1123 type = get_attr_key2string(sidmap_attr_list,
1124 LDAP_ATTR_GIDNUMBER);
1128 return NT_STATUS_INVALID_PARAMETER;
1131 memctx = talloc_new(ctx);
1133 DEBUG(0, ("Out of memory!\n"));
1134 return NT_STATUS_NO_MEMORY;
1137 id_str = talloc_asprintf(memctx, "%lu", (unsigned long)map->xid.id);
1138 CHECK_ALLOC_DONE(id_str);
1140 sid = talloc_strdup(memctx, sid_string_talloc(memctx, map->sid));
1141 CHECK_ALLOC_DONE(sid);
1143 dn = talloc_asprintf(memctx, "%s=%s,%s",
1144 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
1147 CHECK_ALLOC_DONE(dn);
1149 smbldap_set_mod(&mods, LDAP_MOD_ADD,
1150 "objectClass", LDAP_OBJ_IDMAP_ENTRY);
1152 smbldap_make_mod(ctx->smbldap_state->ldap_struct,
1153 entry, &mods, type, id_str);
1155 smbldap_make_mod(ctx->smbldap_state->ldap_struct, entry, &mods,
1156 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
1160 DEBUG(2, ("ERROR: No mods?\n"));
1161 ret = NT_STATUS_UNSUCCESSFUL;
1165 /* TODO: remove conflicting mappings! */
1167 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SID_ENTRY);
1169 DEBUG(10, ("Set DN %s (%s -> %s)\n", dn, sid, id_str));
1171 rc = smbldap_add(ctx->smbldap_state, dn, mods);
1172 ldap_mods_free(mods, True);
1174 if (rc != LDAP_SUCCESS) {
1175 char *ld_error = NULL;
1176 ldap_get_option(ctx->smbldap_state->ldap_struct,
1177 LDAP_OPT_ERROR_STRING, &ld_error);
1178 DEBUG(0,("ldap_set_mapping_internals: Failed to add %s to %lu "
1179 "mapping [%s]\n", sid,
1180 (unsigned long)map->xid.id, type));
1181 DEBUG(0, ("ldap_set_mapping_internals: Error was: %s (%s)\n",
1182 ld_error ? ld_error : "(NULL)", ldap_err2string (rc)));
1184 ldap_memfree(ld_error);
1186 ret = NT_STATUS_UNSUCCESSFUL;
1190 DEBUG(10,("ldap_set_mapping: Successfully created mapping from %s to "
1191 "%lu [%s]\n", sid, (unsigned long)map->xid.id, type));
1196 talloc_free(memctx);
1200 /**********************************
1201 Close the idmap ldap instance
1202 **********************************/
1204 static NTSTATUS idmap_ldap_close(struct idmap_domain *dom)
1206 struct idmap_ldap_context *ctx;
1208 if (dom->private_data) {
1209 ctx = talloc_get_type(dom->private_data,
1210 struct idmap_ldap_context);
1213 dom->private_data = NULL;
1216 return NT_STATUS_OK;
1219 static struct idmap_methods idmap_ldap_methods = {
1221 .init = idmap_ldap_db_init,
1222 .unixids_to_sids = idmap_ldap_unixids_to_sids,
1223 .sids_to_unixids = idmap_ldap_sids_to_unixids,
1224 .allocate_id = idmap_ldap_get_new_id,
1225 .close_fn = idmap_ldap_close
1228 NTSTATUS idmap_ldap_init(void);
1229 NTSTATUS idmap_ldap_init(void)
1231 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "ldap",
1232 &idmap_ldap_methods);