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);
622 /* TODO: change this: This function cannot be called to modify a mapping,
623 * only set a new one */
625 static NTSTATUS idmap_ldap_set_mapping(struct idmap_domain *dom,
626 const struct id_map *map)
630 struct idmap_ldap_context *ctx;
631 LDAPMessage *entry = NULL;
632 LDAPMod **mods = NULL;
639 /* Only do query if we are online */
640 if (idmap_is_offline()) {
641 return NT_STATUS_FILE_IS_OFFLINE;
644 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
646 switch(map->xid.type) {
648 type = get_attr_key2string(sidmap_attr_list,
649 LDAP_ATTR_UIDNUMBER);
653 type = get_attr_key2string(sidmap_attr_list,
654 LDAP_ATTR_GIDNUMBER);
658 return NT_STATUS_INVALID_PARAMETER;
661 memctx = talloc_new(ctx);
663 DEBUG(0, ("Out of memory!\n"));
664 return NT_STATUS_NO_MEMORY;
667 id_str = talloc_asprintf(memctx, "%lu", (unsigned long)map->xid.id);
668 CHECK_ALLOC_DONE(id_str);
670 sid = talloc_strdup(memctx, sid_string_talloc(memctx, map->sid));
671 CHECK_ALLOC_DONE(sid);
673 dn = talloc_asprintf(memctx, "%s=%s,%s",
674 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
677 CHECK_ALLOC_DONE(dn);
679 smbldap_set_mod(&mods, LDAP_MOD_ADD,
680 "objectClass", LDAP_OBJ_IDMAP_ENTRY);
682 smbldap_make_mod(ctx->smbldap_state->ldap_struct,
683 entry, &mods, type, id_str);
685 smbldap_make_mod(ctx->smbldap_state->ldap_struct, entry, &mods,
686 get_attr_key2string(sidmap_attr_list, LDAP_ATTR_SID),
690 DEBUG(2, ("ERROR: No mods?\n"));
691 ret = NT_STATUS_UNSUCCESSFUL;
695 /* TODO: remove conflicting mappings! */
697 smbldap_set_mod(&mods, LDAP_MOD_ADD, "objectClass", LDAP_OBJ_SID_ENTRY);
699 DEBUG(10, ("Set DN %s (%s -> %s)\n", dn, sid, id_str));
701 rc = smbldap_add(ctx->smbldap_state, dn, mods);
702 ldap_mods_free(mods, True);
704 if (rc != LDAP_SUCCESS) {
705 char *ld_error = NULL;
706 ldap_get_option(ctx->smbldap_state->ldap_struct,
707 LDAP_OPT_ERROR_STRING, &ld_error);
708 DEBUG(0,("ldap_set_mapping_internals: Failed to add %s to %lu "
709 "mapping [%s]\n", sid,
710 (unsigned long)map->xid.id, type));
711 DEBUG(0, ("ldap_set_mapping_internals: Error was: %s (%s)\n",
712 ld_error ? ld_error : "(NULL)", ldap_err2string (rc)));
714 ldap_memfree(ld_error);
716 ret = NT_STATUS_UNSUCCESSFUL;
720 DEBUG(10,("ldap_set_mapping: Successfully created mapping from %s to "
721 "%lu [%s]\n", sid, (unsigned long)map->xid.id, type));
731 /* max number of ids requested per batch query */
732 #define IDMAP_LDAP_MAX_IDS 30
734 /**********************************
735 lookup a set of unix ids.
736 **********************************/
738 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
739 * in maps for a match */
740 static struct id_map *find_map_by_id(struct id_map **maps,
746 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
747 if (maps[i] == NULL) { /* end of the run */
750 if ((maps[i]->xid.type == type) && (maps[i]->xid.id == id)) {
758 static NTSTATUS idmap_ldap_unixids_to_sids(struct idmap_domain *dom,
763 struct idmap_ldap_context *ctx;
764 LDAPMessage *result = NULL;
765 LDAPMessage *entry = NULL;
766 const char *uidNumber;
767 const char *gidNumber;
768 const char **attr_list;
777 /* Only do query if we are online */
778 if (idmap_is_offline()) {
779 return NT_STATUS_FILE_IS_OFFLINE;
782 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
784 memctx = talloc_new(ctx);
786 DEBUG(0, ("Out of memory!\n"));
787 return NT_STATUS_NO_MEMORY;
790 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
791 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
793 attr_list = get_attr_list(memctx, sidmap_attr_list);
796 /* if we are requested just one mapping use the simple filter */
798 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%lu))",
799 LDAP_OBJ_IDMAP_ENTRY,
800 (ids[0]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
801 (unsigned long)ids[0]->xid.id);
802 CHECK_ALLOC_DONE(filter);
803 DEBUG(10, ("Filter: [%s]\n", filter));
805 /* multiple mappings */
809 for (i = 0; ids[i]; i++) {
810 ids[i]->status = ID_UNKNOWN;
817 filter = talloc_asprintf(memctx,
818 "(&(objectClass=%s)(|",
819 LDAP_OBJ_IDMAP_ENTRY);
820 CHECK_ALLOC_DONE(filter);
823 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
824 filter = talloc_asprintf_append_buffer(filter, "(%s=%lu)",
825 (ids[idx]->xid.type==ID_TYPE_UID)?uidNumber:gidNumber,
826 (unsigned long)ids[idx]->xid.id);
827 CHECK_ALLOC_DONE(filter);
829 filter = talloc_asprintf_append_buffer(filter, "))");
830 CHECK_ALLOC_DONE(filter);
831 DEBUG(10, ("Filter: [%s]\n", filter));
837 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
838 filter, attr_list, 0, &result);
840 if (rc != LDAP_SUCCESS) {
841 DEBUG(3,("Failure looking up ids (%s)\n", ldap_err2string(rc)));
842 ret = NT_STATUS_UNSUCCESSFUL;
846 count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
849 DEBUG(10, ("NO SIDs found\n"));
852 for (i = 0; i < count; i++) {
859 if (i == 0) { /* first entry */
860 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
862 } else { /* following ones */
863 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
867 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
872 /* first check if the SID is present */
873 sidstr = smbldap_talloc_single_attribute(
874 ctx->smbldap_state->ldap_struct,
875 entry, LDAP_ATTRIBUTE_SID, memctx);
876 if ( ! sidstr) { /* no sid, skip entry */
877 DEBUG(2, ("WARNING SID not found on entry\n"));
881 /* now try to see if it is a uid, if not try with a gid
882 * (gid is more common, but in case both uidNumber and
883 * gidNumber are returned the SID is mapped to the uid
886 tmp = smbldap_talloc_single_attribute(
887 ctx->smbldap_state->ldap_struct,
888 entry, uidNumber, memctx);
891 tmp = smbldap_talloc_single_attribute(
892 ctx->smbldap_state->ldap_struct,
893 entry, gidNumber, memctx);
895 if ( ! tmp) { /* wow very strange entry, how did it match ? */
896 DEBUG(5, ("Unprobable match on (%s), no uidNumber, "
897 "nor gidNumber returned\n", sidstr));
902 id = strtoul(tmp, NULL, 10);
903 if (!idmap_unix_id_is_in_range(id, dom)) {
904 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
906 dom->low_id, dom->high_id));
913 map = find_map_by_id(&ids[bidx], type, id);
915 DEBUG(2, ("WARNING: couldn't match sid (%s) "
916 "with requested ids\n", sidstr));
921 if ( ! string_to_sid(map->sid, sidstr)) {
922 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
927 if (map->status == ID_MAPPED) {
928 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
929 "overwriting mapping %u -> %s with %u -> %s\n",
930 (type == ID_TYPE_UID) ? "UID" : "GID",
931 id, sid_string_dbg(map->sid), id, sidstr));
937 map->status = ID_MAPPED;
939 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
940 (unsigned long)map->xid.id, map->xid.type));
943 /* free the ldap results */
945 ldap_msgfree(result);
949 if (multi && ids[idx]) { /* still some values to map */
955 /* mark all unknwon/expired ones as unmapped */
956 for (i = 0; ids[i]; i++) {
957 if (ids[i]->status != ID_MAPPED)
958 ids[i]->status = ID_UNMAPPED;
966 /**********************************
967 lookup a set of sids.
968 **********************************/
970 /* this function searches up to IDMAP_LDAP_MAX_IDS entries
971 * in maps for a match */
972 static struct id_map *find_map_by_sid(struct id_map **maps, DOM_SID *sid)
976 for (i = 0; i < IDMAP_LDAP_MAX_IDS; i++) {
977 if (maps[i] == NULL) { /* end of the run */
980 if (sid_equal(maps[i]->sid, sid)) {
988 static NTSTATUS idmap_ldap_sids_to_unixids(struct idmap_domain *dom,
991 LDAPMessage *entry = NULL;
994 struct idmap_ldap_context *ctx;
995 LDAPMessage *result = NULL;
996 const char *uidNumber;
997 const char *gidNumber;
998 const char **attr_list;
1007 /* Only do query if we are online */
1008 if (idmap_is_offline()) {
1009 return NT_STATUS_FILE_IS_OFFLINE;
1012 ctx = talloc_get_type(dom->private_data, struct idmap_ldap_context);
1014 memctx = talloc_new(ctx);
1016 DEBUG(0, ("Out of memory!\n"));
1017 return NT_STATUS_NO_MEMORY;
1020 uidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_UIDNUMBER);
1021 gidNumber = get_attr_key2string(idpool_attr_list, LDAP_ATTR_GIDNUMBER);
1023 attr_list = get_attr_list(memctx, sidmap_attr_list);
1026 /* if we are requested just one mapping use the simple filter */
1028 filter = talloc_asprintf(memctx, "(&(objectClass=%s)(%s=%s))",
1029 LDAP_OBJ_IDMAP_ENTRY,
1031 sid_string_talloc(memctx, ids[0]->sid));
1032 CHECK_ALLOC_DONE(filter);
1033 DEBUG(10, ("Filter: [%s]\n", filter));
1035 /* multiple mappings */
1039 for (i = 0; ids[i]; i++) {
1040 ids[i]->status = ID_UNKNOWN;
1046 TALLOC_FREE(filter);
1047 filter = talloc_asprintf(memctx,
1048 "(&(objectClass=%s)(|",
1049 LDAP_OBJ_IDMAP_ENTRY);
1050 CHECK_ALLOC_DONE(filter);
1053 for (i = 0; (i < IDMAP_LDAP_MAX_IDS) && ids[idx]; i++, idx++) {
1054 filter = talloc_asprintf_append_buffer(filter, "(%s=%s)",
1056 sid_string_talloc(memctx,
1058 CHECK_ALLOC_DONE(filter);
1060 filter = talloc_asprintf_append_buffer(filter, "))");
1061 CHECK_ALLOC_DONE(filter);
1062 DEBUG(10, ("Filter: [%s]", filter));
1068 rc = smbldap_search(ctx->smbldap_state, ctx->suffix, LDAP_SCOPE_SUBTREE,
1069 filter, attr_list, 0, &result);
1071 if (rc != LDAP_SUCCESS) {
1072 DEBUG(3,("Failure looking up sids (%s)\n",
1073 ldap_err2string(rc)));
1074 ret = NT_STATUS_UNSUCCESSFUL;
1078 count = ldap_count_entries(ctx->smbldap_state->ldap_struct, result);
1081 DEBUG(10, ("NO SIDs found\n"));
1084 for (i = 0; i < count; i++) {
1085 char *sidstr = NULL;
1092 if (i == 0) { /* first entry */
1093 entry = ldap_first_entry(ctx->smbldap_state->ldap_struct,
1095 } else { /* following ones */
1096 entry = ldap_next_entry(ctx->smbldap_state->ldap_struct,
1100 DEBUG(2, ("ERROR: Unable to fetch ldap entries "
1105 /* first check if the SID is present */
1106 sidstr = smbldap_talloc_single_attribute(
1107 ctx->smbldap_state->ldap_struct,
1108 entry, LDAP_ATTRIBUTE_SID, memctx);
1109 if ( ! sidstr) { /* no sid ??, skip entry */
1110 DEBUG(2, ("WARNING SID not found on entry\n"));
1114 if ( ! string_to_sid(&sid, sidstr)) {
1115 DEBUG(2, ("ERROR: Invalid SID on entry\n"));
1116 TALLOC_FREE(sidstr);
1120 map = find_map_by_sid(&ids[bidx], &sid);
1122 DEBUG(2, ("WARNING: couldn't find entry sid (%s) "
1124 TALLOC_FREE(sidstr);
1128 /* now try to see if it is a uid, if not try with a gid
1129 * (gid is more common, but in case both uidNumber and
1130 * gidNumber are returned the SID is mapped to the uid
1133 tmp = smbldap_talloc_single_attribute(
1134 ctx->smbldap_state->ldap_struct,
1135 entry, uidNumber, memctx);
1138 tmp = smbldap_talloc_single_attribute(
1139 ctx->smbldap_state->ldap_struct,
1140 entry, gidNumber, memctx);
1142 if ( ! tmp) { /* no ids ?? */
1143 DEBUG(5, ("no uidNumber, "
1144 "nor gidNumber attributes found\n"));
1145 TALLOC_FREE(sidstr);
1149 id = strtoul(tmp, NULL, 10);
1150 if (!idmap_unix_id_is_in_range(id, dom)) {
1151 DEBUG(5, ("Requested id (%u) out of range (%u - %u). "
1153 dom->low_id, dom->high_id));
1154 TALLOC_FREE(sidstr);
1160 if (map->status == ID_MAPPED) {
1161 DEBUG(1, ("WARNING: duplicate %s mapping in LDAP. "
1162 "overwriting mapping %s -> %u with %s -> %u\n",
1163 (type == ID_TYPE_UID) ? "UID" : "GID",
1164 sidstr, map->xid.id, sidstr, id));
1167 TALLOC_FREE(sidstr);
1170 map->xid.type = type;
1172 map->status = ID_MAPPED;
1174 DEBUG(10, ("Mapped %s -> %lu (%d)\n", sid_string_dbg(map->sid),
1175 (unsigned long)map->xid.id, map->xid.type));
1178 /* free the ldap results */
1180 ldap_msgfree(result);
1184 if (multi && ids[idx]) { /* still some values to map */
1190 /* mark all unknwon/expired ones as unmapped */
1191 for (i = 0; ids[i]; i++) {
1192 if (ids[i]->status != ID_MAPPED)
1193 ids[i]->status = ID_UNMAPPED;
1197 talloc_free(memctx);
1201 /**********************************
1202 Close the idmap ldap instance
1203 **********************************/
1205 static NTSTATUS idmap_ldap_close(struct idmap_domain *dom)
1207 struct idmap_ldap_context *ctx;
1209 if (dom->private_data) {
1210 ctx = talloc_get_type(dom->private_data,
1211 struct idmap_ldap_context);
1214 dom->private_data = NULL;
1217 return NT_STATUS_OK;
1220 static struct idmap_methods idmap_ldap_methods = {
1222 .init = idmap_ldap_db_init,
1223 .unixids_to_sids = idmap_ldap_unixids_to_sids,
1224 .sids_to_unixids = idmap_ldap_sids_to_unixids,
1225 .allocate_id = idmap_ldap_get_new_id,
1226 .close_fn = idmap_ldap_close
1229 NTSTATUS idmap_ldap_init(void);
1230 NTSTATUS idmap_ldap_init(void)
1232 return smb_register_idmap(SMB_IDMAP_INTERFACE_VERSION, "ldap",
1233 &idmap_ldap_methods);