4 Copyright (C) Andrew Bartlett <abartlet@samba.org> 2005
5 Copyright (C) Simo Sorce 2004-2008
6 Copyright (C) Matthias Dieter Wallnöfer 2009-2010
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 3 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, see <http://www.gnu.org/licenses/>.
25 * Component: ldb samldb module
27 * Description: add embedded user/group creation functionality
33 #include "libcli/ldap/ldap_ndr.h"
34 #include "ldb_module.h"
35 #include "dsdb/samdb/samdb.h"
36 #include "dsdb/samdb/ldb_modules/util.h"
37 #include "libcli/security/security.h"
38 #include "librpc/gen_ndr/ndr_security.h"
39 #include "../lib/util/util_ldb.h"
41 #include "param/param.h"
45 typedef int (*samldb_step_fn_t)(struct samldb_ctx *);
48 struct samldb_step *next;
53 struct ldb_module *module;
54 struct ldb_request *req;
56 /* used for add operations */
59 /* the resulting message */
60 struct ldb_message *msg;
62 /* holds the entry SID */
65 /* holds a generic dn */
68 /* used in conjunction with "sid" in "samldb_dn_from_sid" and
69 * "samldb_find_for_defaultObjectCategory" */
70 struct ldb_dn *res_dn;
72 /* all the async steps necessary to complete the operation */
73 struct samldb_step *steps;
74 struct samldb_step *curstep;
76 /* If someone set an ares to forward controls and response back to the caller */
77 struct ldb_reply *ares;
80 static struct samldb_ctx *samldb_ctx_init(struct ldb_module *module,
81 struct ldb_request *req)
83 struct ldb_context *ldb;
84 struct samldb_ctx *ac;
86 ldb = ldb_module_get_ctx(module);
88 ac = talloc_zero(req, struct samldb_ctx);
100 static int samldb_add_step(struct samldb_ctx *ac, samldb_step_fn_t fn)
102 struct samldb_step *step, *stepper;
104 step = talloc_zero(ac, struct samldb_step);
106 return LDB_ERR_OPERATIONS_ERROR;
111 if (ac->steps == NULL) {
115 if (ac->curstep == NULL)
116 return LDB_ERR_OPERATIONS_ERROR;
117 for (stepper = ac->curstep; stepper->next != NULL;
118 stepper = stepper->next);
119 stepper->next = step;
125 static int samldb_first_step(struct samldb_ctx *ac)
127 if (ac->steps == NULL) {
128 return LDB_ERR_OPERATIONS_ERROR;
131 ac->curstep = ac->steps;
132 return ac->curstep->fn(ac);
135 static int samldb_next_step(struct samldb_ctx *ac)
137 if (ac->curstep->next) {
138 ac->curstep = ac->curstep->next;
139 return ac->curstep->fn(ac);
142 /* we exit the samldb module here */
143 /* If someone set an ares to forward controls and response back to the caller, use them */
145 return ldb_module_done(ac->req, ac->ares->controls,
146 ac->ares->response, LDB_SUCCESS);
148 return ldb_module_done(ac->req, NULL, NULL, LDB_SUCCESS);
152 static int samldb_generate_samAccountName(struct ldb_message *msg)
156 /* Format: $000000-000000000000 */
158 name = talloc_asprintf(msg, "$%.6X-%.6X%.6X",
159 (unsigned int)generate_random(),
160 (unsigned int)generate_random(),
161 (unsigned int)generate_random());
163 return LDB_ERR_OPERATIONS_ERROR;
165 return ldb_msg_add_steal_string(msg, "samAccountName", name);
169 * samldb_check_samAccountName (async)
172 static int samldb_check_samAccountName_callback(struct ldb_request *req,
173 struct ldb_reply *ares)
175 struct samldb_ctx *ac;
178 ac = talloc_get_type(req->context, struct samldb_ctx);
180 if (ares->error != LDB_SUCCESS) {
181 return ldb_module_done(ac->req, ares->controls,
182 ares->response, ares->error);
185 switch (ares->type) {
186 case LDB_REPLY_ENTRY:
187 /* if we get an entry it means this samAccountName
189 return ldb_module_done(ac->req, NULL, NULL,
190 LDB_ERR_ENTRY_ALREADY_EXISTS);
192 case LDB_REPLY_REFERRAL:
199 /* not found, go on */
201 ret = samldb_next_step(ac);
205 if (ret != LDB_SUCCESS) {
206 return ldb_module_done(ac->req, NULL, NULL, ret);
212 static int samldb_check_samAccountName(struct samldb_ctx *ac)
214 struct ldb_context *ldb;
215 struct ldb_request *req;
220 ldb = ldb_module_get_ctx(ac->module);
222 if (ldb_msg_find_element(ac->msg, "samAccountName") == NULL) {
223 ret = samldb_generate_samAccountName(ac->msg);
224 if (ret != LDB_SUCCESS) {
229 name = ldb_msg_find_attr_as_string(ac->msg, "samAccountName", NULL);
231 return LDB_ERR_OPERATIONS_ERROR;
233 filter = talloc_asprintf(ac, "samAccountName=%s",
234 ldb_binary_encode_string(ac, name));
235 if (filter == NULL) {
236 return LDB_ERR_OPERATIONS_ERROR;
239 ret = ldb_build_search_req(&req, ldb, ac,
240 ldb_get_default_basedn(ldb),
244 ac, samldb_check_samAccountName_callback,
247 if (ret != LDB_SUCCESS) {
250 return ldb_next_request(ac->module, req);
254 static int samldb_check_samAccountType(struct samldb_ctx *ac)
256 struct ldb_context *ldb;
257 unsigned int account_type;
258 unsigned int group_type;
262 ldb = ldb_module_get_ctx(ac->module);
264 /* make sure sAMAccountType is not specified */
265 if (ldb_msg_find_element(ac->msg, "sAMAccountType") != NULL) {
266 ldb_asprintf_errstring(ldb,
267 "sAMAccountType must not be specified!");
268 return LDB_ERR_UNWILLING_TO_PERFORM;
271 if (strcmp("user", ac->type) == 0) {
272 uac = samdb_result_uint(ac->msg, "userAccountControl", 0);
274 ldb_asprintf_errstring(ldb,
275 "userAccountControl invalid!");
276 return LDB_ERR_UNWILLING_TO_PERFORM;
278 account_type = ds_uf2atype(uac);
279 ret = samdb_msg_add_uint(ldb,
283 if (ret != LDB_SUCCESS) {
288 if (strcmp("group", ac->type) == 0) {
290 group_type = samdb_result_uint(ac->msg, "groupType", 0);
291 if (group_type == 0) {
292 ldb_asprintf_errstring(ldb,
293 "groupType invalid!\n");
294 return LDB_ERR_UNWILLING_TO_PERFORM;
296 account_type = ds_gtype2atype(group_type);
297 ret = samdb_msg_add_uint(ldb,
301 if (ret != LDB_SUCCESS) {
307 return samldb_next_step(ac);
310 static bool samldb_msg_add_sid(struct ldb_message *msg,
312 const struct dom_sid *sid)
315 enum ndr_err_code ndr_err;
317 ndr_err = ndr_push_struct_blob(&v, msg, sid,
318 (ndr_push_flags_fn_t)ndr_push_dom_sid);
319 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
322 return (ldb_msg_add_value(msg, name, &v, NULL) == 0);
326 /* allocate a SID using our RID Set */
327 static int samldb_allocate_sid(struct samldb_ctx *ac)
331 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
333 ret = ridalloc_allocate_rid(ac->module, &rid);
334 if (ret != LDB_SUCCESS) {
338 ac->sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
339 if (ac->sid == NULL) {
340 ldb_module_oom(ac->module);
341 return LDB_ERR_OPERATIONS_ERROR;
344 if ( ! samldb_msg_add_sid(ac->msg, "objectSid", ac->sid)) {
345 return LDB_ERR_OPERATIONS_ERROR;
348 return samldb_next_step(ac);
352 * samldb_dn_from_sid (async)
355 static int samldb_dn_from_sid(struct samldb_ctx *ac);
357 static int samldb_dn_from_sid_callback(struct ldb_request *req,
358 struct ldb_reply *ares)
360 struct ldb_context *ldb;
361 struct samldb_ctx *ac;
364 ac = talloc_get_type(req->context, struct samldb_ctx);
365 ldb = ldb_module_get_ctx(ac->module);
368 ret = LDB_ERR_OPERATIONS_ERROR;
371 if (ares->error != LDB_SUCCESS) {
372 return ldb_module_done(ac->req, ares->controls,
373 ares->response, ares->error);
376 switch (ares->type) {
377 case LDB_REPLY_ENTRY:
379 if (ac->res_dn != NULL) {
381 ldb_set_errstring(ldb,
382 "Invalid number of results while searching "
383 "for domain objects!");
384 ret = LDB_ERR_OPERATIONS_ERROR;
387 ac->res_dn = ldb_dn_copy(ac, ares->message->dn);
393 case LDB_REPLY_REFERRAL:
402 /* found or not found, go on */
403 ret = samldb_next_step(ac);
408 if (ret != LDB_SUCCESS) {
409 return ldb_module_done(ac->req, NULL, NULL, ret);
415 /* Finds the DN "res_dn" of an object with a given SID "sid" */
416 static int samldb_dn_from_sid(struct samldb_ctx *ac)
418 struct ldb_context *ldb;
419 static const char * const attrs[] = { NULL };
420 struct ldb_request *req;
424 ldb = ldb_module_get_ctx(ac->module);
427 return LDB_ERR_OPERATIONS_ERROR;
429 filter = talloc_asprintf(ac, "(objectSid=%s)",
430 ldap_encode_ndr_dom_sid(ac, ac->sid));
432 return LDB_ERR_OPERATIONS_ERROR;
434 ret = ldb_build_search_req(&req, ldb, ac,
435 ldb_get_default_basedn(ldb),
439 ac, samldb_dn_from_sid_callback,
441 if (ret != LDB_SUCCESS)
444 return ldb_next_request(ac->module, req);
448 static int samldb_check_primaryGroupID_1(struct samldb_ctx *ac)
450 struct ldb_context *ldb;
453 ldb = ldb_module_get_ctx(ac->module);
455 rid = samdb_result_uint(ac->msg, "primaryGroupID", ~0);
456 ac->sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
458 return LDB_ERR_OPERATIONS_ERROR;
461 return samldb_next_step(ac);
464 static int samldb_check_primaryGroupID_2(struct samldb_ctx *ac)
466 if (ac->res_dn == NULL) {
467 struct ldb_context *ldb;
468 ldb = ldb_module_get_ctx(ac->module);
469 ldb_asprintf_errstring(ldb,
470 "Failed to find group sid %s!",
471 dom_sid_string(ac->sid, ac->sid));
472 return LDB_ERR_UNWILLING_TO_PERFORM;
475 return samldb_next_step(ac);
480 * samldb_set_defaultObjectCategory_callback (async)
483 static int samldb_set_defaultObjectCategory_callback(struct ldb_request *req,
484 struct ldb_reply *ares)
486 struct ldb_context *ldb;
487 struct samldb_ctx *ac;
490 ac = talloc_get_type(req->context, struct samldb_ctx);
491 ldb = ldb_module_get_ctx(ac->module);
494 ret = LDB_ERR_OPERATIONS_ERROR;
498 if (ares->type == LDB_REPLY_REFERRAL) {
499 return ldb_module_send_referral(ac->req, ares->referral);
502 if (ares->error != LDB_SUCCESS) {
503 return ldb_module_done(ac->req, ares->controls,
504 ares->response, ares->error);
506 if (ares->type != LDB_REPLY_DONE) {
507 ldb_set_errstring(ldb,
508 "Invalid reply type!");
509 ret = LDB_ERR_OPERATIONS_ERROR;
513 ret = samldb_next_step(ac);
516 if (ret != LDB_SUCCESS) {
517 return ldb_module_done(ac->req, NULL, NULL, ret);
523 static int samldb_set_defaultObjectCategory(struct samldb_ctx *ac)
525 struct ldb_context *ldb;
526 struct ldb_message *msg;
527 struct ldb_request *req;
530 ldb = ldb_module_get_ctx(ac->module);
532 /* (Re)set the default object category to have it set to the DN in the
534 msg = ldb_msg_new(ac);
535 msg->dn = ac->msg->dn;
536 ldb_msg_add_empty(msg, "defaultObjectCategory",
537 LDB_FLAG_MOD_REPLACE, NULL);
538 ldb_msg_add_steal_string(msg, "defaultObjectCategory",
539 ldb_dn_alloc_linearized(msg, ac->res_dn));
541 ret = ldb_build_mod_req(&req, ldb, ac,
544 samldb_set_defaultObjectCategory_callback,
546 if (ret != LDB_SUCCESS) {
551 return ldb_next_request(ac->module, req);
555 * samldb_find_for_defaultObjectCategory (async)
558 static int samldb_find_for_defaultObjectCategory_callback(struct ldb_request *req,
559 struct ldb_reply *ares)
561 struct ldb_context *ldb;
562 struct samldb_ctx *ac;
565 ac = talloc_get_type(req->context, struct samldb_ctx);
566 ldb = ldb_module_get_ctx(ac->module);
569 ret = LDB_ERR_OPERATIONS_ERROR;
572 if (ares->error != LDB_SUCCESS) {
573 if (ares->error == LDB_ERR_NO_SUCH_OBJECT) {
574 if (ldb_request_get_control(ac->req,
575 LDB_CONTROL_RELAX_OID) != NULL) {
576 /* Don't be pricky when the DN doesn't exist */
577 /* if we have the RELAX control specified */
578 ac->res_dn = req->op.search.base;
579 return samldb_next_step(ac);
581 ldb_set_errstring(ldb,
582 "samldb_find_defaultObjectCategory: "
583 "Invalid DN for 'defaultObjectCategory'!");
584 ares->error = LDB_ERR_CONSTRAINT_VIOLATION;
588 return ldb_module_done(ac->req, ares->controls,
589 ares->response, ares->error);
592 switch (ares->type) {
593 case LDB_REPLY_ENTRY:
594 ac->res_dn = talloc_steal(ac, ares->message->dn);
599 case LDB_REPLY_REFERRAL:
608 if (ac->res_dn != NULL) {
609 /* when found go on */
610 ret = samldb_next_step(ac);
612 ret = LDB_ERR_OPERATIONS_ERROR;
618 if (ret != LDB_SUCCESS) {
619 return ldb_module_done(ac->req, NULL, NULL, ret);
625 static int samldb_find_for_defaultObjectCategory(struct samldb_ctx *ac)
627 struct ldb_context *ldb;
628 struct ldb_request *req;
629 static const char *no_attrs[] = { NULL };
632 ldb = ldb_module_get_ctx(ac->module);
636 ret = ldb_build_search_req(&req, ldb, ac,
637 ac->dn, LDB_SCOPE_BASE,
638 "(objectClass=classSchema)", no_attrs,
640 samldb_find_for_defaultObjectCategory_callback,
642 if (ret != LDB_SUCCESS) {
646 ret = dsdb_request_add_controls(req,
647 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT);
648 if (ret != LDB_SUCCESS) {
652 return ldb_next_request(ac->module, req);
656 * msDS-IntId attributeSchema attribute handling
657 * during LDB_ADD request processing
659 static int samldb_add_handle_msDS_IntId(struct samldb_ctx *ac)
664 uint32_t system_flags;
665 struct ldb_context *ldb;
666 struct ldb_result *ldb_res;
667 struct ldb_dn *schema_dn;
669 ldb = ldb_module_get_ctx(ac->module);
670 schema_dn = ldb_get_schema_basedn(ldb);
672 /* replicated update should always go through */
673 if (ldb_request_get_control(ac->req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
677 /* msDS-IntId is handled by system and should never be
678 * passed by clients */
679 if (ldb_msg_find_element(ac->msg, "msDS-IntId")) {
680 return LDB_ERR_UNWILLING_TO_PERFORM;
683 /* do not generate msDS-IntId if Relax control is passed */
684 if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
688 /* check Functional Level */
689 if (dsdb_functional_level(ldb) < DS_DOMAIN_FUNCTION_2003) {
693 /* check systemFlags for SCHEMA_BASE_OBJECT flag */
694 system_flags = ldb_msg_find_attr_as_uint(ac->msg, "systemFlags", 0);
695 if (system_flags & SYSTEM_FLAG_SCHEMA_BASE_OBJECT) {
699 /* Generate new value for msDs-IntId
700 * Value should be in 0x80000000..0xBFFFFFFF range */
701 msds_intid = generate_random() % 0X3FFFFFFF;
702 msds_intid += 0x80000000;
704 /* probe id values until unique one is found */
707 if (msds_intid > 0xBFFFFFFF) {
708 msds_intid = 0x80000001;
711 ret = dsdb_module_search(ac->module, ac,
713 schema_dn, LDB_SCOPE_ONELEVEL, NULL, 0,
714 "(msDS-IntId=%d)", msds_intid);
715 if (ret != LDB_SUCCESS) {
716 ldb_debug_set(ldb, LDB_DEBUG_ERROR,
717 __location__": Searching for msDS-IntId=%d failed - %s\n",
720 return LDB_ERR_OPERATIONS_ERROR;
722 id_exists = (ldb_res->count > 0);
724 talloc_free(ldb_res);
727 return ldb_msg_add_fmt(ac->msg, "msDS-IntId", "%d", msds_intid);
732 * samldb_add_entry (async)
735 static int samldb_add_entry_callback(struct ldb_request *req,
736 struct ldb_reply *ares)
738 struct ldb_context *ldb;
739 struct samldb_ctx *ac;
742 ac = talloc_get_type(req->context, struct samldb_ctx);
743 ldb = ldb_module_get_ctx(ac->module);
746 return ldb_module_done(ac->req, NULL, NULL,
747 LDB_ERR_OPERATIONS_ERROR);
750 if (ares->type == LDB_REPLY_REFERRAL) {
751 return ldb_module_send_referral(ac->req, ares->referral);
754 if (ares->error != LDB_SUCCESS) {
755 return ldb_module_done(ac->req, ares->controls,
756 ares->response, ares->error);
758 if (ares->type != LDB_REPLY_DONE) {
759 ldb_set_errstring(ldb,
760 "Invalid reply type!\n");
761 return ldb_module_done(ac->req, NULL, NULL,
762 LDB_ERR_OPERATIONS_ERROR);
765 /* The caller may wish to get controls back from the add */
766 ac->ares = talloc_steal(ac, ares);
768 ret = samldb_next_step(ac);
769 if (ret != LDB_SUCCESS) {
770 return ldb_module_done(ac->req, NULL, NULL, ret);
775 static int samldb_add_entry(struct samldb_ctx *ac)
777 struct ldb_context *ldb;
778 struct ldb_request *req;
781 ldb = ldb_module_get_ctx(ac->module);
783 ret = ldb_build_add_req(&req, ldb, ac,
786 ac, samldb_add_entry_callback,
788 if (ret != LDB_SUCCESS) {
792 return ldb_next_request(ac->module, req);
796 * return true if msg carries an attributeSchema that is intended to be RODC
797 * filtered but is also a system-critical attribute.
799 static bool check_rodc_critical_attribute(struct ldb_message *msg)
801 uint32_t schemaFlagsEx, searchFlags, rodc_filtered_flags;
803 schemaFlagsEx = ldb_msg_find_attr_as_uint(msg, "schemaFlagsEx", 0);
804 searchFlags = ldb_msg_find_attr_as_uint(msg, "searchFlags", 0);
805 rodc_filtered_flags = (SEARCH_FLAG_RODC_ATTRIBUTE | SEARCH_FLAG_CONFIDENTIAL);
807 if ((schemaFlagsEx & SCHEMA_FLAG_ATTR_IS_CRITICAL) &&
808 ((searchFlags & rodc_filtered_flags) == rodc_filtered_flags)) {
816 static int samldb_fill_object(struct samldb_ctx *ac, const char *type)
818 struct ldb_context *ldb;
819 struct loadparm_context *lp_ctx;
820 enum sid_generator sid_generator;
823 ldb = ldb_module_get_ctx(ac->module);
825 /* Add informations for the different account types */
827 if (strcmp(ac->type, "user") == 0) {
828 ret = samdb_find_or_add_attribute(ldb, ac->msg,
829 "userAccountControl", "546");
830 if (ret != LDB_SUCCESS) return ret;
831 ret = samdb_find_or_add_attribute(ldb, ac->msg,
833 if (ret != LDB_SUCCESS) return ret;
834 ret = samdb_find_or_add_attribute(ldb, ac->msg,
836 if (ret != LDB_SUCCESS) return ret;
837 ret = samdb_find_or_add_attribute(ldb, ac->msg,
839 if (ret != LDB_SUCCESS) return ret;
840 ret = samdb_find_or_add_attribute(ldb, ac->msg,
841 "badPasswordTime", "0");
842 if (ret != LDB_SUCCESS) return ret;
843 ret = samdb_find_or_add_attribute(ldb, ac->msg,
845 if (ret != LDB_SUCCESS) return ret;
846 ret = samdb_find_or_add_attribute(ldb, ac->msg,
848 if (ret != LDB_SUCCESS) return ret;
849 ret = samdb_find_or_add_attribute(ldb, ac->msg,
851 if (ret != LDB_SUCCESS) return ret;
852 if (!ldb_msg_find_element(ac->msg, "primaryGroupID")) {
853 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
854 "primaryGroupID", DOMAIN_RID_USERS);
855 if (ret != LDB_SUCCESS) return ret;
857 ret = samdb_find_or_add_attribute(ldb, ac->msg,
858 "accountExpires", "9223372036854775807");
859 if (ret != LDB_SUCCESS) return ret;
860 ret = samdb_find_or_add_attribute(ldb, ac->msg,
862 if (ret != LDB_SUCCESS) return ret;
863 } else if (strcmp(ac->type, "group") == 0) {
864 ret = samdb_find_or_add_attribute(ldb, ac->msg,
865 "groupType", "-2147483646");
866 if (ret != LDB_SUCCESS) return ret;
867 } else if (strcmp(ac->type, "classSchema") == 0) {
868 const struct ldb_val *rdn_value, *def_obj_cat_val;
870 ret = samdb_find_or_add_attribute(ldb, ac->msg,
872 if (ret != LDB_SUCCESS) return ret;
874 /* do not allow to mark an attributeSchema as RODC filtered if it
875 * is system-critical */
876 if (check_rodc_critical_attribute(ac->msg)) {
877 ldb_asprintf_errstring(ldb, "Refusing schema add of %s - cannot combine critical class with RODC filtering",
878 ldb_dn_get_linearized(ac->msg->dn));
879 return LDB_ERR_UNWILLING_TO_PERFORM;
883 rdn_value = ldb_dn_get_rdn_val(ac->msg->dn);
884 if (!ldb_msg_find_element(ac->msg, "lDAPDisplayName")) {
885 /* the RDN has prefix "CN" */
886 ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
887 samdb_cn_to_lDAPDisplayName(ac,
888 (const char *) rdn_value->data));
889 if (ret != LDB_SUCCESS) {
895 if (!ldb_msg_find_element(ac->msg, "schemaIDGUID")) {
898 guid = GUID_random();
899 ret = dsdb_msg_add_guid(ac->msg, &guid, "schemaIDGUID");
900 if (ret != LDB_SUCCESS) {
906 def_obj_cat_val = ldb_msg_find_ldb_val(ac->msg,
907 "defaultObjectCategory");
908 if (def_obj_cat_val != NULL) {
909 /* "defaultObjectCategory" has been set by the caller.
910 * Do some checks for consistency.
911 * NOTE: The real constraint check (that
912 * 'defaultObjectCategory' is the DN of the new
913 * objectclass or any parent of it) is still incomplete.
914 * For now we say that 'defaultObjectCategory' is valid
915 * if it exists and it is of objectclass "classSchema".
917 ac->dn = ldb_dn_from_ldb_val(ac, ldb, def_obj_cat_val);
918 if (ac->dn == NULL) {
919 ldb_set_errstring(ldb,
920 "Invalid DN for 'defaultObjectCategory'!");
921 return LDB_ERR_CONSTRAINT_VIOLATION;
924 /* "defaultObjectCategory" has not been set by the
925 * caller. Use the entry DN for it. */
926 ac->dn = ac->msg->dn;
928 ret = samdb_msg_add_string(ldb, ac, ac->msg,
929 "defaultObjectCategory",
930 ldb_dn_get_linearized(ac->dn));
931 if (ret != LDB_SUCCESS) {
937 ret = samldb_add_step(ac, samldb_add_entry);
938 if (ret != LDB_SUCCESS) return ret;
940 /* Now perform the checks for the 'defaultObjectCategory'. The
941 * lookup DN was already saved in "ac->dn" */
942 ret = samldb_add_step(ac, samldb_find_for_defaultObjectCategory);
943 if (ret != LDB_SUCCESS) return ret;
945 ret = samldb_add_step(ac, samldb_set_defaultObjectCategory);
946 if (ret != LDB_SUCCESS) return ret;
948 return samldb_first_step(ac);
949 } else if (strcmp(ac->type, "attributeSchema") == 0) {
950 const struct ldb_val *rdn_value;
951 rdn_value = ldb_dn_get_rdn_val(ac->msg->dn);
952 if (!ldb_msg_find_element(ac->msg, "lDAPDisplayName")) {
953 /* the RDN has prefix "CN" */
954 ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
955 samdb_cn_to_lDAPDisplayName(ac,
956 (const char *) rdn_value->data));
957 if (ret != LDB_SUCCESS) {
963 /* do not allow to mark an attributeSchema as RODC filtered if it
964 * is system-critical */
965 if (check_rodc_critical_attribute(ac->msg)) {
966 ldb_asprintf_errstring(ldb, "Refusing schema add of %s - cannot combine critical attribute with RODC filtering",
967 ldb_dn_get_linearized(ac->msg->dn));
968 return LDB_ERR_UNWILLING_TO_PERFORM;
971 ret = samdb_find_or_add_attribute(ldb, ac->msg,
972 "isSingleValued", "FALSE");
973 if (ret != LDB_SUCCESS) return ret;
975 if (!ldb_msg_find_element(ac->msg, "schemaIDGUID")) {
978 guid = GUID_random();
979 ret = dsdb_msg_add_guid(ac->msg, &guid, "schemaIDGUID");
980 if (ret != LDB_SUCCESS) {
986 /* handle msDS-IntID attribute */
987 ret = samldb_add_handle_msDS_IntId(ac);
988 if (ret != LDB_SUCCESS) return ret;
990 ret = samldb_add_step(ac, samldb_add_entry);
991 if (ret != LDB_SUCCESS) return ret;
993 return samldb_first_step(ac);
995 ldb_asprintf_errstring(ldb,
996 "Invalid entry type!");
997 return LDB_ERR_OPERATIONS_ERROR;
1000 /* check if we have a valid samAccountName */
1001 ret = samldb_add_step(ac, samldb_check_samAccountName);
1002 if (ret != LDB_SUCCESS) return ret;
1004 /* check account_type/group_type */
1005 ret = samldb_add_step(ac, samldb_check_samAccountType);
1006 if (ret != LDB_SUCCESS) return ret;
1008 /* check if we have a valid primary group ID */
1009 if (strcmp(ac->type, "user") == 0) {
1010 ret = samldb_add_step(ac, samldb_check_primaryGroupID_1);
1011 if (ret != LDB_SUCCESS) return ret;
1012 ret = samldb_add_step(ac, samldb_dn_from_sid);
1013 if (ret != LDB_SUCCESS) return ret;
1014 ret = samldb_add_step(ac, samldb_check_primaryGroupID_2);
1015 if (ret != LDB_SUCCESS) return ret;
1018 lp_ctx = talloc_get_type(ldb_get_opaque(ldb, "loadparm"),
1019 struct loadparm_context);
1021 /* don't allow objectSID to be specified without the RELAX control */
1022 ac->sid = samdb_result_dom_sid(ac, ac->msg, "objectSid");
1023 if (ac->sid && !ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID) &&
1024 !dsdb_module_am_system(ac->module)) {
1025 ldb_asprintf_errstring(ldb, "No SID may be specified in user/group creation for %s",
1026 ldb_dn_get_linearized(ac->msg->dn));
1027 return LDB_ERR_UNWILLING_TO_PERFORM;
1031 sid_generator = lp_sid_generator(lp_ctx);
1032 if (sid_generator == SID_GENERATOR_INTERNAL) {
1033 ret = samldb_add_step(ac, samldb_allocate_sid);
1034 if (ret != LDB_SUCCESS) return ret;
1038 /* finally proceed with adding the entry */
1039 ret = samldb_add_step(ac, samldb_add_entry);
1040 if (ret != LDB_SUCCESS) return ret;
1042 return samldb_first_step(ac);
1045 static int samldb_fill_foreignSecurityPrincipal_object(struct samldb_ctx *ac)
1047 struct ldb_context *ldb;
1050 ldb = ldb_module_get_ctx(ac->module);
1052 ac->sid = samdb_result_dom_sid(ac->msg, ac->msg, "objectSid");
1053 if (ac->sid == NULL) {
1054 ac->sid = dom_sid_parse_talloc(ac->msg,
1055 (const char *)ldb_dn_get_rdn_val(ac->msg->dn)->data);
1057 ldb_set_errstring(ldb,
1058 "No valid SID found in "
1059 "ForeignSecurityPrincipal CN!");
1061 return LDB_ERR_CONSTRAINT_VIOLATION;
1063 if ( ! samldb_msg_add_sid(ac->msg, "objectSid", ac->sid)) {
1065 return LDB_ERR_OPERATIONS_ERROR;
1069 /* finally proceed with adding the entry */
1070 ret = samldb_add_step(ac, samldb_add_entry);
1071 if (ret != LDB_SUCCESS) return ret;
1073 return samldb_first_step(ac);
1076 static int samldb_schema_info_update(struct samldb_ctx *ac)
1079 struct ldb_context *ldb;
1080 struct dsdb_schema *schema;
1082 /* replicated update should always go through */
1083 if (ldb_request_get_control(ac->req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
1087 /* do not update schemaInfo during provisioning */
1088 if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
1092 ldb = ldb_module_get_ctx(ac->module);
1093 schema = dsdb_get_schema(ldb, NULL);
1095 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
1096 "samldb_schema_info_update: no dsdb_schema loaded");
1097 DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
1098 return LDB_ERR_OPERATIONS_ERROR;
1101 werr = dsdb_module_schema_info_update(ac->module, schema, 0);
1102 if (!W_ERROR_IS_OK(werr)) {
1103 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
1104 "samldb_schema_info_update: "
1105 "dsdb_module_schema_info_update failed with %s",
1107 DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
1108 return LDB_ERR_OPERATIONS_ERROR;
1115 static int samldb_prim_group_change(struct samldb_ctx *ac)
1117 struct ldb_context *ldb;
1118 const char * attrs[] = { "primaryGroupID", "memberOf", NULL };
1119 struct ldb_result *res;
1120 struct ldb_message_element *el;
1121 struct ldb_message *msg;
1123 struct dom_sid *sid;
1124 struct ldb_dn *prev_prim_group_dn, *new_prim_group_dn;
1127 ldb = ldb_module_get_ctx(ac->module);
1129 /* Fetch informations from the existing object */
1131 ret = ldb_search(ldb, ac, &res, ac->msg->dn, LDB_SCOPE_BASE, attrs,
1133 if (ret != LDB_SUCCESS) {
1137 /* Finds out the DN of the old primary group */
1139 rid = samdb_result_uint(res->msgs[0], "primaryGroupID", (uint32_t) -1);
1140 if (rid == (uint32_t) -1) {
1141 /* User objects do always have a mandatory "primaryGroupID"
1142 * attribute. If this doesn't exist then the object is of the
1143 * wrong type. This is the exact Windows error code */
1144 return LDB_ERR_OBJECT_CLASS_VIOLATION;
1147 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
1149 return LDB_ERR_OPERATIONS_ERROR;
1152 prev_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSID=%s)",
1153 dom_sid_string(ac, sid));
1154 if (prev_prim_group_dn == NULL) {
1155 return LDB_ERR_OPERATIONS_ERROR;
1158 /* Finds out the DN of the new primary group */
1160 rid = samdb_result_uint(ac->msg, "primaryGroupID", (uint32_t) -1);
1161 if (rid == (uint32_t) -1) {
1162 /* we aren't affected of any primary group change */
1166 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
1168 return LDB_ERR_OPERATIONS_ERROR;
1171 new_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSID=%s)",
1172 dom_sid_string(ac, sid));
1173 if (new_prim_group_dn == NULL) {
1174 /* Here we know if the specified new primary group candidate is
1176 return LDB_ERR_UNWILLING_TO_PERFORM;
1179 /* Only update the "member" attributes when we really do have a change */
1180 if (ldb_dn_compare(new_prim_group_dn, prev_prim_group_dn) != 0) {
1181 /* We need to be already a normal member of the new primary
1182 * group in order to be successful. */
1183 el = samdb_find_attribute(ldb, res->msgs[0], "memberOf",
1184 ldb_dn_get_linearized(new_prim_group_dn));
1186 return LDB_ERR_UNWILLING_TO_PERFORM;
1189 /* Remove the "member" attribute on the new primary group */
1190 msg = talloc_zero(ac, struct ldb_message);
1191 msg->dn = new_prim_group_dn;
1193 ret = samdb_msg_add_delval(ldb, ac, msg, "member",
1194 ldb_dn_get_linearized(ac->msg->dn));
1195 if (ret != LDB_SUCCESS) {
1199 ret = dsdb_module_modify(ac->module, msg, 0);
1200 if (ret != LDB_SUCCESS) {
1204 /* Add a "member" attribute for the previous primary group */
1205 msg = talloc_zero(ac, struct ldb_message);
1206 msg->dn = prev_prim_group_dn;
1208 ret = samdb_msg_add_addval(ldb, ac, msg, "member",
1209 ldb_dn_get_linearized(ac->msg->dn));
1210 if (ret != LDB_SUCCESS) {
1214 ret = dsdb_module_modify(ac->module, msg, 0);
1215 if (ret != LDB_SUCCESS) {
1224 static int samldb_member_check(struct samldb_ctx *ac)
1226 struct ldb_context *ldb;
1227 struct ldb_message_element *el;
1228 struct ldb_dn *member_dn, *group_dn;
1229 uint32_t prim_group_rid;
1230 struct dom_sid *sid;
1233 ldb = ldb_module_get_ctx(ac->module);
1235 el = ldb_msg_find_element(ac->msg, "member");
1237 /* we aren't affected */
1241 for (i = 0; i < el->num_values; i++) {
1242 /* Denies to add "member"s to groups which are primary ones
1244 member_dn = ldb_dn_from_ldb_val(ac, ldb, &el->values[i]);
1245 if (!ldb_dn_validate(member_dn)) {
1246 return LDB_ERR_OPERATIONS_ERROR;
1249 prim_group_rid = samdb_search_uint(ldb, ac, (uint32_t) -1,
1250 member_dn, "primaryGroupID",
1252 if (prim_group_rid == (uint32_t) -1) {
1253 /* the member hasn't to be a user account -> therefore
1254 * no check needed in this case. */
1258 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb),
1261 return LDB_ERR_OPERATIONS_ERROR;
1264 group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSID=%s)",
1265 dom_sid_string(ac, sid));
1266 if (group_dn == NULL) {
1267 return LDB_ERR_OPERATIONS_ERROR;
1270 if (ldb_dn_compare(group_dn, ac->msg->dn) == 0) {
1271 return LDB_ERR_ENTRY_ALREADY_EXISTS;
1279 static int samldb_prim_group_users_check(struct samldb_ctx *ac)
1281 struct ldb_context *ldb;
1282 struct dom_sid *sid;
1287 ldb = ldb_module_get_ctx(ac->module);
1289 /* Finds out the SID/RID of the SAM object */
1290 sid = samdb_search_dom_sid(ldb, ac, ac->req->op.del.dn, "objectSID",
1293 /* No SID - it might not be a SAM object - therefore ok */
1296 status = dom_sid_split_rid(ac, sid, NULL, &rid);
1297 if (!NT_STATUS_IS_OK(status)) {
1298 return LDB_ERR_OPERATIONS_ERROR;
1301 /* Special object (security principal?) */
1305 /* Deny delete requests from groups which are primary ones */
1306 count = samdb_search_count(ldb, NULL,
1307 "(&(primaryGroupID=%u)(objectClass=user))",
1310 return LDB_ERR_OPERATIONS_ERROR;
1313 return LDB_ERR_ENTRY_ALREADY_EXISTS;
1321 static int samldb_add(struct ldb_module *module, struct ldb_request *req)
1323 struct ldb_context *ldb;
1324 struct samldb_ctx *ac;
1327 ldb = ldb_module_get_ctx(module);
1328 ldb_debug(ldb, LDB_DEBUG_TRACE, "samldb_add\n");
1330 /* do not manipulate our control entries */
1331 if (ldb_dn_is_special(req->op.add.message->dn)) {
1332 return ldb_next_request(module, req);
1335 ac = samldb_ctx_init(module, req);
1337 return LDB_ERR_OPERATIONS_ERROR;
1340 /* build the new msg */
1341 ac->msg = ldb_msg_copy(ac, ac->req->op.add.message);
1344 ldb_debug(ldb, LDB_DEBUG_FATAL,
1345 "samldb_add: ldb_msg_copy failed!\n");
1346 return LDB_ERR_OPERATIONS_ERROR;
1349 if (samdb_find_attribute(ldb, ac->msg,
1350 "objectclass", "user") != NULL) {
1351 return samldb_fill_object(ac, "user");
1354 if (samdb_find_attribute(ldb, ac->msg,
1355 "objectclass", "group") != NULL) {
1356 return samldb_fill_object(ac, "group");
1359 /* perhaps a foreignSecurityPrincipal? */
1360 if (samdb_find_attribute(ldb, ac->msg,
1362 "foreignSecurityPrincipal") != NULL) {
1363 return samldb_fill_foreignSecurityPrincipal_object(ac);
1366 if (samdb_find_attribute(ldb, ac->msg,
1367 "objectclass", "classSchema") != NULL) {
1368 ret = samldb_schema_info_update(ac);
1369 if (ret != LDB_SUCCESS) {
1374 return samldb_fill_object(ac, "classSchema");
1377 if (samdb_find_attribute(ldb, ac->msg,
1378 "objectclass", "attributeSchema") != NULL) {
1379 ret = samldb_schema_info_update(ac);
1380 if (ret != LDB_SUCCESS) {
1385 return samldb_fill_object(ac, "attributeSchema");
1390 /* nothing matched, go on */
1391 return ldb_next_request(module, req);
1395 static int samldb_modify(struct ldb_module *module, struct ldb_request *req)
1397 struct ldb_context *ldb;
1398 struct samldb_ctx *ac;
1399 struct ldb_message *msg;
1400 struct ldb_message_element *el, *el2;
1402 uint32_t account_type;
1404 if (ldb_dn_is_special(req->op.mod.message->dn)) {
1405 /* do not manipulate our control entries */
1406 return ldb_next_request(module, req);
1409 ldb = ldb_module_get_ctx(module);
1411 if (ldb_msg_find_element(req->op.mod.message, "sAMAccountType") != NULL) {
1412 ldb_asprintf_errstring(ldb,
1413 "sAMAccountType must not be specified!");
1414 return LDB_ERR_UNWILLING_TO_PERFORM;
1417 /* msDS-IntId is not allowed to be modified
1418 * except when modification comes from replication */
1419 if (ldb_msg_find_element(req->op.mod.message, "msDS-IntId")) {
1420 if (!ldb_request_get_control(req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
1421 return LDB_ERR_CONSTRAINT_VIOLATION;
1425 ac = samldb_ctx_init(module, req);
1427 return LDB_ERR_OPERATIONS_ERROR;
1430 /* TODO: do not modify original request, create a new one */
1432 el = ldb_msg_find_element(req->op.mod.message, "groupType");
1433 if (el && (el->flags == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1434 uint32_t group_type;
1436 req->op.mod.message = msg = ldb_msg_copy_shallow(req,
1437 req->op.mod.message);
1439 group_type = strtoul((const char *)el->values[0].data, NULL, 0);
1440 account_type = ds_gtype2atype(group_type);
1441 ret = samdb_msg_add_uint(ldb, msg, msg,
1444 if (ret != LDB_SUCCESS) {
1447 el2 = ldb_msg_find_element(msg, "sAMAccountType");
1448 el2->flags = LDB_FLAG_MOD_REPLACE;
1450 if (el && (el->flags == LDB_FLAG_MOD_DELETE)) {
1451 return LDB_ERR_UNWILLING_TO_PERFORM;
1454 el = ldb_msg_find_element(req->op.mod.message, "primaryGroupID");
1455 if (el && (el->flags == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1456 req->op.mod.message = ac->msg = ldb_msg_copy_shallow(req,
1457 req->op.mod.message);
1459 ret = samldb_prim_group_change(ac);
1460 if (ret != LDB_SUCCESS) {
1464 if (el && (el->flags == LDB_FLAG_MOD_DELETE)) {
1465 return LDB_ERR_UNWILLING_TO_PERFORM;
1468 el = ldb_msg_find_element(req->op.mod.message, "userAccountControl");
1469 if (el && (el->flags == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1470 uint32_t user_account_control;
1472 req->op.mod.message = msg = ldb_msg_copy_shallow(req,
1473 req->op.mod.message);
1475 user_account_control = strtoul((const char *)el->values[0].data,
1477 account_type = ds_uf2atype(user_account_control);
1478 ret = samdb_msg_add_uint(ldb, msg, msg,
1481 if (ret != LDB_SUCCESS) {
1484 el2 = ldb_msg_find_element(msg, "sAMAccountType");
1485 el2->flags = LDB_FLAG_MOD_REPLACE;
1487 if (user_account_control & UF_SERVER_TRUST_ACCOUNT) {
1488 ret = samdb_msg_add_string(ldb, msg, msg,
1489 "isCriticalSystemObject", "TRUE");
1490 if (ret != LDB_SUCCESS) {
1493 el2 = ldb_msg_find_element(msg, "isCriticalSystemObject");
1494 el2->flags = LDB_FLAG_MOD_REPLACE;
1496 /* DCs have primaryGroupID of DOMAIN_RID_DCS */
1497 if (!ldb_msg_find_element(msg, "primaryGroupID")) {
1498 ret = samdb_msg_add_uint(ldb, msg, msg,
1499 "primaryGroupID", DOMAIN_RID_DCS);
1500 if (ret != LDB_SUCCESS) {
1503 el2 = ldb_msg_find_element(msg, "primaryGroupID");
1504 el2->flags = LDB_FLAG_MOD_REPLACE;
1508 if (el && (el->flags == LDB_FLAG_MOD_DELETE)) {
1509 return LDB_ERR_UNWILLING_TO_PERFORM;
1512 el = ldb_msg_find_element(req->op.mod.message, "member");
1513 if (el && el->flags & (LDB_FLAG_MOD_ADD|LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1514 req->op.mod.message = ac->msg = ldb_msg_copy_shallow(req,
1515 req->op.mod.message);
1517 ret = samldb_member_check(ac);
1518 if (ret != LDB_SUCCESS) {
1523 return ldb_next_request(module, req);
1527 static int samldb_delete(struct ldb_module *module, struct ldb_request *req)
1529 struct samldb_ctx *ac;
1532 if (ldb_dn_is_special(req->op.del.dn)) {
1533 /* do not manipulate our control entries */
1534 return ldb_next_request(module, req);
1537 ac = samldb_ctx_init(module, req);
1539 return LDB_ERR_OPERATIONS_ERROR;
1541 ret = samldb_prim_group_users_check(ac);
1542 if (ret != LDB_SUCCESS) {
1546 return ldb_next_request(module, req);
1549 static int samldb_extended_allocate_rid_pool(struct ldb_module *module, struct ldb_request *req)
1551 struct ldb_context *ldb = ldb_module_get_ctx(module);
1552 struct dsdb_fsmo_extended_op *exop;
1555 exop = talloc_get_type(req->op.extended.data, struct dsdb_fsmo_extended_op);
1557 ldb_debug(ldb, LDB_DEBUG_FATAL, "samldb_extended_allocate_rid_pool: invalid extended data\n");
1558 return LDB_ERR_PROTOCOL_ERROR;
1561 ret = ridalloc_allocate_rid_pool_fsmo(module, exop);
1562 if (ret != LDB_SUCCESS) {
1566 return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
1569 static int samldb_extended(struct ldb_module *module, struct ldb_request *req)
1571 if (strcmp(req->op.extended.oid, DSDB_EXTENDED_ALLOCATE_RID_POOL) == 0) {
1572 return samldb_extended_allocate_rid_pool(module, req);
1575 return ldb_next_request(module, req);
1579 _PUBLIC_ const struct ldb_module_ops ldb_samldb_module_ops = {
1582 .modify = samldb_modify,
1583 .del = samldb_delete,
1584 .extended = samldb_extended