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: various internal DSDB triggers - most for SAM specific objects
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 "dsdb/samdb/ldb_modules/ridalloc.h"
38 #include "libcli/security/security.h"
39 #include "librpc/gen_ndr/ndr_security.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 /* used in "samldb_find_for_defaultObjectCategory" */
63 struct ldb_dn *dn, *res_dn;
65 /* all the async steps necessary to complete the operation */
66 struct samldb_step *steps;
67 struct samldb_step *curstep;
69 /* If someone set an ares to forward controls and response back to the caller */
70 struct ldb_reply *ares;
73 static struct samldb_ctx *samldb_ctx_init(struct ldb_module *module,
74 struct ldb_request *req)
76 struct ldb_context *ldb;
77 struct samldb_ctx *ac;
79 ldb = ldb_module_get_ctx(module);
81 ac = talloc_zero(req, struct samldb_ctx);
93 static int samldb_add_step(struct samldb_ctx *ac, samldb_step_fn_t fn)
95 struct samldb_step *step, *stepper;
97 step = talloc_zero(ac, struct samldb_step);
99 return ldb_oom(ldb_module_get_ctx(ac->module));
104 if (ac->steps == NULL) {
108 if (ac->curstep == NULL)
109 return ldb_operr(ldb_module_get_ctx(ac->module));
110 for (stepper = ac->curstep; stepper->next != NULL;
111 stepper = stepper->next);
112 stepper->next = step;
118 static int samldb_first_step(struct samldb_ctx *ac)
120 if (ac->steps == NULL) {
121 return ldb_operr(ldb_module_get_ctx(ac->module));
124 ac->curstep = ac->steps;
125 return ac->curstep->fn(ac);
128 static int samldb_next_step(struct samldb_ctx *ac)
130 if (ac->curstep->next) {
131 ac->curstep = ac->curstep->next;
132 return ac->curstep->fn(ac);
135 /* We exit the samldb module here. If someone set an "ares" to forward
136 * controls and response back to the caller, use them. */
138 return ldb_module_done(ac->req, ac->ares->controls,
139 ac->ares->response, LDB_SUCCESS);
141 return ldb_module_done(ac->req, NULL, NULL, LDB_SUCCESS);
146 /* sAMAccountName handling */
148 static int samldb_generate_sAMAccountName(struct ldb_context *ldb,
149 struct ldb_message *msg)
153 /* Format: $000000-000000000000 */
155 name = talloc_asprintf(msg, "$%.6X-%.6X%.6X",
156 (unsigned int)generate_random(),
157 (unsigned int)generate_random(),
158 (unsigned int)generate_random());
162 return ldb_msg_add_steal_string(msg, "sAMAccountName", name);
165 static int samldb_check_sAMAccountName(struct samldb_ctx *ac)
167 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
171 if (ldb_msg_find_element(ac->msg, "sAMAccountName") == NULL) {
172 ret = samldb_generate_sAMAccountName(ldb, ac->msg);
173 if (ret != LDB_SUCCESS) {
178 name = ldb_msg_find_attr_as_string(ac->msg, "sAMAccountName", NULL);
180 return ldb_operr(ldb);
183 ret = samdb_search_count(ldb, ac, NULL, "(sAMAccountName=%s)",
184 ldb_binary_encode_string(ac, name));
185 if ((ret < 0) || (ret > 1)) {
186 return ldb_operr(ldb);
189 return LDB_ERR_ENTRY_ALREADY_EXISTS;
192 return samldb_next_step(ac);
196 static bool samldb_msg_add_sid(struct ldb_message *msg,
198 const struct dom_sid *sid)
201 enum ndr_err_code ndr_err;
203 ndr_err = ndr_push_struct_blob(&v, msg, sid,
204 (ndr_push_flags_fn_t)ndr_push_dom_sid);
205 if (!NDR_ERR_CODE_IS_SUCCESS(ndr_err)) {
208 return (ldb_msg_add_value(msg, name, &v, NULL) == 0);
212 /* allocate a SID using our RID Set */
213 static int samldb_allocate_sid(struct samldb_ctx *ac)
217 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
220 ret = ridalloc_allocate_rid(ac->module, &rid);
221 if (ret != LDB_SUCCESS) {
225 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
227 return ldb_module_oom(ac->module);
230 if ( ! samldb_msg_add_sid(ac->msg, "objectSid", sid)) {
231 return ldb_operr(ldb);
234 return samldb_next_step(ac);
238 see if a krbtgt_number is available
240 static bool samldb_krbtgtnumber_available(struct samldb_ctx *ac,
241 uint32_t krbtgt_number)
243 TALLOC_CTX *tmp_ctx = talloc_new(ac);
244 struct ldb_result *res;
245 const char *no_attrs[] = { NULL };
248 ret = dsdb_module_search(ac->module, tmp_ctx, &res, NULL,
249 LDB_SCOPE_SUBTREE, no_attrs,
250 DSDB_FLAG_NEXT_MODULE,
251 "(msDC-SecondaryKrbTgtNumber=%u)",
253 if (ret == LDB_SUCCESS && res->count == 0) {
254 talloc_free(tmp_ctx);
257 talloc_free(tmp_ctx);
261 /* special handling for add in RODC join */
262 static int samldb_rodc_add(struct samldb_ctx *ac)
264 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
265 uint32_t krbtgt_number, i_start, i;
269 /* find a unused msDC-SecondaryKrbTgtNumber */
270 i_start = generate_random() & 0xFFFF;
275 for (i=i_start; i<=0xFFFF; i++) {
276 if (samldb_krbtgtnumber_available(ac, i)) {
281 for (i=1; i<i_start; i++) {
282 if (samldb_krbtgtnumber_available(ac, i)) {
288 ldb_asprintf_errstring(ldb,
289 "%08X: Unable to find available msDS-SecondaryKrbTgtNumber",
290 W_ERROR_V(WERR_NO_SYSTEM_RESOURCES));
291 return LDB_ERR_OTHER;
294 ret = ldb_msg_add_empty(ac->msg, "msDS-SecondaryKrbTgtNumber",
295 LDB_FLAG_INTERNAL_DISABLE_VALIDATION, NULL);
296 if (ret != LDB_SUCCESS) {
297 return ldb_operr(ldb);
300 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
301 "msDS-SecondaryKrbTgtNumber", krbtgt_number);
302 if (ret != LDB_SUCCESS) {
303 return ldb_operr(ldb);
306 ret = ldb_msg_add_fmt(ac->msg, "sAMAccountName", "krbtgt_%u",
308 if (ret != LDB_SUCCESS) {
309 return ldb_operr(ldb);
312 newpass = generate_random_password(ac->msg, 128, 255);
313 if (newpass == NULL) {
314 return ldb_operr(ldb);
317 ret = ldb_msg_add_steal_string(ac->msg, "clearTextPassword", newpass);
318 if (ret != LDB_SUCCESS) {
319 return ldb_operr(ldb);
322 return samldb_next_step(ac);
325 static int samldb_find_for_defaultObjectCategory(struct samldb_ctx *ac)
327 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
328 struct ldb_result *res;
329 const char *no_attrs[] = { NULL };
334 ret = dsdb_module_search(ac->module, ac, &res,
335 ac->dn, LDB_SCOPE_BASE, no_attrs,
336 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT
337 | DSDB_FLAG_NEXT_MODULE,
338 "(objectClass=classSchema)");
339 if (ret == LDB_ERR_NO_SUCH_OBJECT) {
340 /* Don't be pricky when the DN doesn't exist if we have the */
341 /* RELAX control specified */
342 if (ldb_request_get_control(ac->req,
343 LDB_CONTROL_RELAX_OID) == NULL) {
344 ldb_set_errstring(ldb,
345 "samldb_find_defaultObjectCategory: "
346 "Invalid DN for 'defaultObjectCategory'!");
347 return LDB_ERR_CONSTRAINT_VIOLATION;
350 if ((ret != LDB_ERR_NO_SUCH_OBJECT) && (ret != LDB_SUCCESS)) {
356 return samldb_next_step(ac);
360 * msDS-IntId attributeSchema attribute handling
361 * during LDB_ADD request processing
363 static int samldb_add_handle_msDS_IntId(struct samldb_ctx *ac)
368 int32_t system_flags;
369 struct ldb_context *ldb;
370 struct ldb_result *ldb_res;
371 struct ldb_dn *schema_dn;
373 ldb = ldb_module_get_ctx(ac->module);
374 schema_dn = ldb_get_schema_basedn(ldb);
376 /* replicated update should always go through */
377 if (ldb_request_get_control(ac->req,
378 DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
382 /* msDS-IntId is handled by system and should never be
383 * passed by clients */
384 if (ldb_msg_find_element(ac->msg, "msDS-IntId")) {
385 return LDB_ERR_UNWILLING_TO_PERFORM;
388 /* do not generate msDS-IntId if Relax control is passed */
389 if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
393 /* check Functional Level */
394 if (dsdb_functional_level(ldb) < DS_DOMAIN_FUNCTION_2003) {
398 /* check systemFlags for SCHEMA_BASE_OBJECT flag */
399 system_flags = ldb_msg_find_attr_as_int(ac->msg, "systemFlags", 0);
400 if (system_flags & SYSTEM_FLAG_SCHEMA_BASE_OBJECT) {
404 /* Generate new value for msDs-IntId
405 * Value should be in 0x80000000..0xBFFFFFFF range */
406 msds_intid = generate_random() % 0X3FFFFFFF;
407 msds_intid += 0x80000000;
409 /* probe id values until unique one is found */
412 if (msds_intid > 0xBFFFFFFF) {
413 msds_intid = 0x80000001;
416 ret = dsdb_module_search(ac->module, ac,
418 schema_dn, LDB_SCOPE_ONELEVEL, NULL,
419 DSDB_FLAG_NEXT_MODULE,
420 "(msDS-IntId=%d)", msds_intid);
421 if (ret != LDB_SUCCESS) {
422 ldb_debug_set(ldb, LDB_DEBUG_ERROR,
423 __location__": Searching for msDS-IntId=%d failed - %s\n",
426 return ldb_operr(ldb);
428 id_exists = (ldb_res->count > 0);
430 talloc_free(ldb_res);
433 return samdb_msg_add_int(ldb, ac->msg, ac->msg, "msDS-IntId",
439 * samldb_add_entry (async)
442 static int samldb_add_entry_callback(struct ldb_request *req,
443 struct ldb_reply *ares)
445 struct ldb_context *ldb;
446 struct samldb_ctx *ac;
449 ac = talloc_get_type(req->context, struct samldb_ctx);
450 ldb = ldb_module_get_ctx(ac->module);
453 return ldb_module_done(ac->req, NULL, NULL,
454 LDB_ERR_OPERATIONS_ERROR);
457 if (ares->type == LDB_REPLY_REFERRAL) {
458 return ldb_module_send_referral(ac->req, ares->referral);
461 if (ares->error != LDB_SUCCESS) {
462 return ldb_module_done(ac->req, ares->controls,
463 ares->response, ares->error);
465 if (ares->type != LDB_REPLY_DONE) {
466 ldb_set_errstring(ldb,
467 "Invalid reply type!\n");
468 return ldb_module_done(ac->req, NULL, NULL,
469 LDB_ERR_OPERATIONS_ERROR);
472 /* The caller may wish to get controls back from the add */
473 ac->ares = talloc_steal(ac, ares);
475 ret = samldb_next_step(ac);
476 if (ret != LDB_SUCCESS) {
477 return ldb_module_done(ac->req, NULL, NULL, ret);
482 static int samldb_add_entry(struct samldb_ctx *ac)
484 struct ldb_context *ldb;
485 struct ldb_request *req;
488 ldb = ldb_module_get_ctx(ac->module);
490 ret = ldb_build_add_req(&req, ldb, ac,
493 ac, samldb_add_entry_callback,
495 LDB_REQ_SET_LOCATION(req);
496 if (ret != LDB_SUCCESS) {
500 return ldb_next_request(ac->module, req);
504 * return true if msg carries an attributeSchema that is intended to be RODC
505 * filtered but is also a system-critical attribute.
507 static bool check_rodc_critical_attribute(struct ldb_message *msg)
509 uint32_t schemaFlagsEx, searchFlags, rodc_filtered_flags;
511 schemaFlagsEx = ldb_msg_find_attr_as_uint(msg, "schemaFlagsEx", 0);
512 searchFlags = ldb_msg_find_attr_as_uint(msg, "searchFlags", 0);
513 rodc_filtered_flags = (SEARCH_FLAG_RODC_ATTRIBUTE
514 | SEARCH_FLAG_CONFIDENTIAL);
516 if ((schemaFlagsEx & SCHEMA_FLAG_ATTR_IS_CRITICAL) &&
517 ((searchFlags & rodc_filtered_flags) == rodc_filtered_flags)) {
525 static int samldb_fill_object(struct samldb_ctx *ac)
527 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
530 /* Add informations for the different account types */
531 if (strcmp(ac->type, "user") == 0) {
532 struct ldb_control *rodc_control = ldb_request_get_control(ac->req,
533 LDB_CONTROL_RODC_DCPROMO_OID);
534 if (rodc_control != NULL) {
535 /* see [MS-ADTS] 3.1.1.3.4.1.23 LDAP_SERVER_RODC_DCPROMO_OID */
536 rodc_control->critical = false;
537 ret = samldb_add_step(ac, samldb_rodc_add);
538 if (ret != LDB_SUCCESS) return ret;
541 /* check if we have a valid sAMAccountName */
542 ret = samldb_add_step(ac, samldb_check_sAMAccountName);
543 if (ret != LDB_SUCCESS) return ret;
545 ret = samldb_add_step(ac, samldb_add_entry);
546 if (ret != LDB_SUCCESS) return ret;
548 } else if (strcmp(ac->type, "group") == 0) {
549 /* check if we have a valid sAMAccountName */
550 ret = samldb_add_step(ac, samldb_check_sAMAccountName);
551 if (ret != LDB_SUCCESS) return ret;
553 ret = samldb_add_step(ac, samldb_add_entry);
554 if (ret != LDB_SUCCESS) return ret;
556 } else if (strcmp(ac->type, "classSchema") == 0) {
557 const struct ldb_val *rdn_value, *def_obj_cat_val;
559 ret = samdb_find_or_add_attribute(ldb, ac->msg,
561 if (ret != LDB_SUCCESS) return ret;
563 /* do not allow to mark an attributeSchema as RODC filtered if it
564 * is system-critical */
565 if (check_rodc_critical_attribute(ac->msg)) {
566 ldb_asprintf_errstring(ldb, "Refusing schema add of %s - cannot combine critical class with RODC filtering",
567 ldb_dn_get_linearized(ac->msg->dn));
568 return LDB_ERR_UNWILLING_TO_PERFORM;
571 rdn_value = ldb_dn_get_rdn_val(ac->msg->dn);
572 if (!ldb_msg_find_element(ac->msg, "lDAPDisplayName")) {
573 /* the RDN has prefix "CN" */
574 ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
575 samdb_cn_to_lDAPDisplayName(ac->msg,
576 (const char *) rdn_value->data));
577 if (ret != LDB_SUCCESS) {
583 if (!ldb_msg_find_element(ac->msg, "schemaIDGUID")) {
586 guid = GUID_random();
587 ret = dsdb_msg_add_guid(ac->msg, &guid, "schemaIDGUID");
588 if (ret != LDB_SUCCESS) {
594 def_obj_cat_val = ldb_msg_find_ldb_val(ac->msg,
595 "defaultObjectCategory");
596 if (def_obj_cat_val != NULL) {
597 /* "defaultObjectCategory" has been set by the caller.
598 * Do some checks for consistency.
599 * NOTE: The real constraint check (that
600 * 'defaultObjectCategory' is the DN of the new
601 * objectclass or any parent of it) is still incomplete.
602 * For now we say that 'defaultObjectCategory' is valid
603 * if it exists and it is of objectclass "classSchema".
605 ac->dn = ldb_dn_from_ldb_val(ac, ldb, def_obj_cat_val);
606 if (ac->dn == NULL) {
607 ldb_set_errstring(ldb,
608 "Invalid DN for 'defaultObjectCategory'!");
609 return LDB_ERR_CONSTRAINT_VIOLATION;
612 /* "defaultObjectCategory" has not been set by the
613 * caller. Use the entry DN for it. */
614 ac->dn = ac->msg->dn;
616 ret = ldb_msg_add_string(ac->msg, "defaultObjectCategory",
617 ldb_dn_alloc_linearized(ac->msg, ac->dn));
618 if (ret != LDB_SUCCESS) {
624 ret = samldb_add_step(ac, samldb_add_entry);
625 if (ret != LDB_SUCCESS) return ret;
627 /* Now perform the checks for the 'defaultObjectCategory'. The
628 * lookup DN was already saved in "ac->dn" */
629 ret = samldb_add_step(ac, samldb_find_for_defaultObjectCategory);
630 if (ret != LDB_SUCCESS) return ret;
632 } else if (strcmp(ac->type, "attributeSchema") == 0) {
633 const struct ldb_val *rdn_value;
634 rdn_value = ldb_dn_get_rdn_val(ac->msg->dn);
635 if (!ldb_msg_find_element(ac->msg, "lDAPDisplayName")) {
636 /* the RDN has prefix "CN" */
637 ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
638 samdb_cn_to_lDAPDisplayName(ac->msg,
639 (const char *) rdn_value->data));
640 if (ret != LDB_SUCCESS) {
646 /* do not allow to mark an attributeSchema as RODC filtered if it
647 * is system-critical */
648 if (check_rodc_critical_attribute(ac->msg)) {
649 ldb_asprintf_errstring(ldb,
650 "samldb: refusing schema add of %s - cannot combine critical attribute with RODC filtering",
651 ldb_dn_get_linearized(ac->msg->dn));
652 return LDB_ERR_UNWILLING_TO_PERFORM;
655 ret = samdb_find_or_add_attribute(ldb, ac->msg,
656 "isSingleValued", "FALSE");
657 if (ret != LDB_SUCCESS) return ret;
659 if (!ldb_msg_find_element(ac->msg, "schemaIDGUID")) {
662 guid = GUID_random();
663 ret = dsdb_msg_add_guid(ac->msg, &guid, "schemaIDGUID");
664 if (ret != LDB_SUCCESS) {
670 /* handle msDS-IntID attribute */
671 ret = samldb_add_handle_msDS_IntId(ac);
672 if (ret != LDB_SUCCESS) return ret;
674 ret = samldb_add_step(ac, samldb_add_entry);
675 if (ret != LDB_SUCCESS) return ret;
678 ldb_asprintf_errstring(ldb,
679 "Invalid entry type!");
680 return LDB_ERR_OPERATIONS_ERROR;
683 return samldb_first_step(ac);
686 static int samldb_fill_foreignSecurityPrincipal_object(struct samldb_ctx *ac)
688 struct ldb_context *ldb;
692 ldb = ldb_module_get_ctx(ac->module);
694 sid = samdb_result_dom_sid(ac->msg, ac->msg, "objectSid");
696 sid = dom_sid_parse_talloc(ac->msg,
697 (const char *)ldb_dn_get_rdn_val(ac->msg->dn)->data);
699 ldb_set_errstring(ldb,
700 "samldb: No valid SID found in ForeignSecurityPrincipal CN!");
701 return LDB_ERR_CONSTRAINT_VIOLATION;
703 if (! samldb_msg_add_sid(ac->msg, "objectSid", sid)) {
704 return ldb_operr(ldb);
708 /* finally proceed with adding the entry */
709 ret = samldb_add_step(ac, samldb_add_entry);
710 if (ret != LDB_SUCCESS) return ret;
712 return samldb_first_step(ac);
715 static int samldb_schema_info_update(struct samldb_ctx *ac)
718 struct ldb_context *ldb;
719 struct dsdb_schema *schema;
721 /* replicated update should always go through */
722 if (ldb_request_get_control(ac->req,
723 DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
727 /* do not update schemaInfo during provisioning */
728 if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
732 ldb = ldb_module_get_ctx(ac->module);
733 schema = dsdb_get_schema(ldb, NULL);
735 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
736 "samldb_schema_info_update: no dsdb_schema loaded");
737 DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
738 return ldb_operr(ldb);
741 ret = dsdb_module_schema_info_update(ac->module, schema,
742 DSDB_FLAG_NEXT_MODULE);
743 if (ret != LDB_SUCCESS) {
744 ldb_asprintf_errstring(ldb,
745 "samldb_schema_info_update: dsdb_module_schema_info_update failed with %s",
754 * "Objectclass" trigger (MS-SAMR 3.1.1.8.1)
756 * Has to be invoked on "add" and "modify" operations on "user", "computer" and
758 * ac->msg contains the "add"/"modify" message
759 * ac->type contains the object type (main objectclass)
761 static int samldb_objectclass_trigger(struct samldb_ctx *ac)
763 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
764 struct loadparm_context *lp_ctx = talloc_get_type(ldb_get_opaque(ldb,
765 "loadparm"), struct loadparm_context);
766 struct ldb_message_element *el, *el2;
767 enum sid_generator sid_generator;
772 /* make sure that "sAMAccountType" is not specified */
773 el = ldb_msg_find_element(ac->msg, "sAMAccountType");
775 ldb_set_errstring(ldb,
776 "samldb: sAMAccountType must not be specified!");
777 return LDB_ERR_UNWILLING_TO_PERFORM;
780 /* Step 1: objectSid assignment */
782 /* Don't allow the objectSid to be changed. But beside the RELAX
783 * control we have also to guarantee that it can always be set with
784 * SYSTEM permissions. This is needed for the "samba3sam" backend. */
785 sid = samdb_result_dom_sid(ac, ac->msg, "objectSid");
786 if ((sid != NULL) && (!dsdb_module_am_system(ac->module)) &&
787 (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID) == NULL)) {
788 ldb_asprintf_errstring(ldb,
789 "samldb: no SID may be specified in user/group modifications for %s",
790 ldb_dn_get_linearized(ac->msg->dn));
791 return LDB_ERR_UNWILLING_TO_PERFORM;
794 /* but generate a new SID when we do have an add operations */
795 if ((sid == NULL) && (ac->req->operation == LDB_ADD)) {
796 sid_generator = lpcfg_sid_generator(lp_ctx);
797 if (sid_generator == SID_GENERATOR_INTERNAL) {
798 ret = samldb_add_step(ac, samldb_allocate_sid);
799 if (ret != LDB_SUCCESS) return ret;
803 if (strcmp(ac->type, "user") == 0) {
804 /* Step 1.2: Default values */
805 tempstr = talloc_asprintf(ac->msg, "%d", UF_NORMAL_ACCOUNT);
806 if (tempstr == NULL) return ldb_operr(ldb);
807 ret = samdb_find_or_add_attribute(ldb, ac->msg,
808 "userAccountControl", tempstr);
809 if (ret != LDB_SUCCESS) return ret;
810 ret = samdb_find_or_add_attribute(ldb, ac->msg,
812 if (ret != LDB_SUCCESS) return ret;
813 ret = samdb_find_or_add_attribute(ldb, ac->msg,
815 if (ret != LDB_SUCCESS) return ret;
816 ret = samdb_find_or_add_attribute(ldb, ac->msg,
818 if (ret != LDB_SUCCESS) return ret;
819 ret = samdb_find_or_add_attribute(ldb, ac->msg,
820 "badPasswordTime", "0");
821 if (ret != LDB_SUCCESS) return ret;
822 ret = samdb_find_or_add_attribute(ldb, ac->msg,
824 if (ret != LDB_SUCCESS) return ret;
825 ret = samdb_find_or_add_attribute(ldb, ac->msg,
827 if (ret != LDB_SUCCESS) return ret;
828 ret = samdb_find_or_add_attribute(ldb, ac->msg,
830 if (ret != LDB_SUCCESS) return ret;
831 ret = samdb_find_or_add_attribute(ldb, ac->msg,
832 "accountExpires", "9223372036854775807");
833 if (ret != LDB_SUCCESS) return ret;
834 ret = samdb_find_or_add_attribute(ldb, ac->msg,
836 if (ret != LDB_SUCCESS) return ret;
838 el = ldb_msg_find_element(ac->msg, "userAccountControl");
840 uint32_t user_account_control, account_type;
842 /* Step 1.3: "userAccountControl" -> "sAMAccountType" mapping */
843 user_account_control = ldb_msg_find_attr_as_uint(ac->msg,
844 "userAccountControl",
847 /* Temporary duplicate accounts aren't allowed */
848 if ((user_account_control & UF_TEMP_DUPLICATE_ACCOUNT) != 0) {
849 return LDB_ERR_OTHER;
852 account_type = ds_uf2atype(user_account_control);
853 if (account_type == 0) {
854 ldb_set_errstring(ldb, "samldb: Unrecognized account type!");
855 return LDB_ERR_UNWILLING_TO_PERFORM;
857 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
860 if (ret != LDB_SUCCESS) {
863 el2 = ldb_msg_find_element(ac->msg, "sAMAccountType");
864 el2->flags = LDB_FLAG_MOD_REPLACE;
866 if (user_account_control &
867 (UF_SERVER_TRUST_ACCOUNT | UF_PARTIAL_SECRETS_ACCOUNT)) {
868 ret = samdb_msg_set_string(ldb, ac->msg, ac->msg,
869 "isCriticalSystemObject",
871 if (ret != LDB_SUCCESS) {
874 el2 = ldb_msg_find_element(ac->msg,
875 "isCriticalSystemObject");
876 el2->flags = LDB_FLAG_MOD_REPLACE;
879 /* Step 1.4: "userAccountControl" -> "primaryGroupID" mapping */
880 if (!ldb_msg_find_element(ac->msg, "primaryGroupID")) {
881 uint32_t rid = ds_uf2prim_group_rid(user_account_control);
882 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
883 "primaryGroupID", rid);
884 if (ret != LDB_SUCCESS) {
887 el2 = ldb_msg_find_element(ac->msg,
889 el2->flags = LDB_FLAG_MOD_REPLACE;
892 /* Step 1.5: Add additional flags when needed */
893 if ((user_account_control & UF_NORMAL_ACCOUNT) &&
894 (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID) == NULL)) {
895 user_account_control |= UF_ACCOUNTDISABLE;
896 user_account_control |= UF_PASSWD_NOTREQD;
898 ret = samdb_msg_set_uint(ldb, ac->msg, ac->msg,
899 "userAccountControl",
900 user_account_control);
901 if (ret != LDB_SUCCESS) {
907 } else if (strcmp(ac->type, "group") == 0) {
908 /* Step 2.2: Default values */
909 tempstr = talloc_asprintf(ac->msg, "%d",
910 GTYPE_SECURITY_GLOBAL_GROUP);
911 if (tempstr == NULL) return ldb_operr(ldb);
912 ret = samdb_find_or_add_attribute(ldb, ac->msg,
913 "groupType", tempstr);
914 if (ret != LDB_SUCCESS) return ret;
916 /* Step 2.3: "groupType" -> "sAMAccountType" */
917 el = ldb_msg_find_element(ac->msg, "groupType");
919 uint32_t group_type, account_type;
921 group_type = ldb_msg_find_attr_as_uint(ac->msg,
924 /* The creation of builtin groups requires the
926 if (group_type == GTYPE_SECURITY_BUILTIN_LOCAL_GROUP) {
927 if (ldb_request_get_control(ac->req,
928 LDB_CONTROL_RELAX_OID) == NULL) {
929 return LDB_ERR_UNWILLING_TO_PERFORM;
933 account_type = ds_gtype2atype(group_type);
934 if (account_type == 0) {
935 ldb_set_errstring(ldb, "samldb: Unrecognized account type!");
936 return LDB_ERR_UNWILLING_TO_PERFORM;
938 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
941 if (ret != LDB_SUCCESS) {
944 el2 = ldb_msg_find_element(ac->msg, "sAMAccountType");
945 el2->flags = LDB_FLAG_MOD_REPLACE;
953 * "Primary group ID" trigger (MS-SAMR 3.1.1.8.2)
955 * Has to be invoked on "add" and "modify" operations on "user" and "computer"
957 * ac->msg contains the "add"/"modify" message
960 static int samldb_prim_group_set(struct samldb_ctx *ac)
962 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
963 struct ldb_dn *prim_group_dn;
967 rid = ldb_msg_find_attr_as_uint(ac->msg, "primaryGroupID", (uint32_t) -1);
968 if (rid == (uint32_t) -1) {
969 /* we aren't affected of any primary group set */
972 } else if (!ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
973 ldb_set_errstring(ldb,
974 "The primary group isn't settable on add operations!");
975 return LDB_ERR_UNWILLING_TO_PERFORM;
978 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
980 return ldb_operr(ldb);
983 prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSid=%s)",
984 ldap_encode_ndr_dom_sid(ac, sid));
985 if (prim_group_dn == NULL) {
986 ldb_asprintf_errstring(ldb,
987 "Failed to find primary group with RID %u!",
989 return LDB_ERR_UNWILLING_TO_PERFORM;
995 static int samldb_prim_group_change(struct samldb_ctx *ac)
997 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
998 const char * attrs[] = { "primaryGroupID", "memberOf", NULL };
999 struct ldb_result *res;
1000 struct ldb_message_element *el;
1001 struct ldb_message *msg;
1003 struct dom_sid *sid;
1004 struct ldb_dn *prev_prim_group_dn, *new_prim_group_dn;
1008 /* We've to walk over all modification entries and consider the
1009 * "primaryGroupID" ones.
1011 * 1.) Add operations aren't allowed and there is returned
1012 * "ATTRIBUTE_OR_VALUE_EXISTS".
1013 * 2.) Replace operations are allowed but the last one is taken
1014 * 3.) Delete operations are also not allowed and there is returned
1015 * "UNWILLING_TO_PERFORM".
1017 * If "el" is afterwards NULL then that means we've nothing to do here.
1020 for (i = 0; i < ac->msg->num_elements; i++) {
1021 if (ldb_attr_cmp(ac->msg->elements[i].name,
1022 "primaryGroupID") != 0) {
1026 el = &ac->msg->elements[i];
1027 if (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_ADD) {
1028 return LDB_ERR_ATTRIBUTE_OR_VALUE_EXISTS;
1030 if (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_DELETE) {
1031 return LDB_ERR_UNWILLING_TO_PERFORM;
1038 /* Okay, now for sure we are performing a "primaryGroupID" replace */
1040 /* Fetch informations from the existing object */
1042 ret = ldb_search(ldb, ac, &res, ac->msg->dn, LDB_SCOPE_BASE, attrs,
1044 if (ret != LDB_SUCCESS) {
1048 /* Finds out the DN of the old primary group */
1050 rid = ldb_msg_find_attr_as_uint(res->msgs[0], "primaryGroupID", (uint32_t) -1);
1051 if (rid == (uint32_t) -1) {
1052 /* User objects do always have a mandatory "primaryGroupID"
1053 * attribute. If this doesn't exist then the object is of the
1054 * wrong type. This is the exact Windows error code */
1055 return LDB_ERR_OBJECT_CLASS_VIOLATION;
1058 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
1060 return ldb_operr(ldb);
1063 prev_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSid=%s)",
1064 ldap_encode_ndr_dom_sid(ac, sid));
1065 if (prev_prim_group_dn == NULL) {
1066 return ldb_operr(ldb);
1069 /* Finds out the DN of the new primary group
1070 * Notice: in order to parse the primary group ID correctly we create
1071 * a temporary message here. */
1073 msg = ldb_msg_new(ac->msg);
1075 return ldb_module_oom(ac->module);
1077 ret = ldb_msg_add(msg, el, 0);
1078 if (ret != LDB_SUCCESS) {
1081 rid = ldb_msg_find_attr_as_uint(msg, "primaryGroupID", (uint32_t) -1);
1083 if (rid == (uint32_t) -1) {
1084 /* we aren't affected of any primary group change */
1088 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
1090 return ldb_operr(ldb);
1093 new_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSid=%s)",
1094 ldap_encode_ndr_dom_sid(ac, sid));
1095 if (new_prim_group_dn == NULL) {
1096 /* Here we know if the specified new primary group candidate is
1098 return LDB_ERR_UNWILLING_TO_PERFORM;
1101 /* Only update the "member" attributes when we really do have a change */
1102 if (ldb_dn_compare(new_prim_group_dn, prev_prim_group_dn) != 0) {
1103 /* We need to be already a normal member of the new primary
1104 * group in order to be successful. */
1105 el = samdb_find_attribute(ldb, res->msgs[0], "memberOf",
1106 ldb_dn_get_linearized(new_prim_group_dn));
1108 return LDB_ERR_UNWILLING_TO_PERFORM;
1111 /* Remove the "member" attribute on the new primary group */
1112 msg = talloc_zero(ac, struct ldb_message);
1114 return ldb_module_oom(ac->module);
1116 msg->dn = new_prim_group_dn;
1118 ret = samdb_msg_add_delval(ldb, msg, msg, "member",
1119 ldb_dn_get_linearized(ac->msg->dn));
1120 if (ret != LDB_SUCCESS) {
1124 ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
1125 if (ret != LDB_SUCCESS) {
1129 /* Add a "member" attribute for the previous primary group */
1130 msg = talloc_zero(ac, struct ldb_message);
1132 return ldb_module_oom(ac->module);
1134 msg->dn = prev_prim_group_dn;
1136 ret = samdb_msg_add_addval(ldb, msg, msg, "member",
1137 ldb_dn_get_linearized(ac->msg->dn));
1138 if (ret != LDB_SUCCESS) {
1142 ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
1143 if (ret != LDB_SUCCESS) {
1153 static int samldb_prim_group_trigger(struct samldb_ctx *ac)
1157 if (ac->req->operation == LDB_ADD) {
1158 ret = samldb_prim_group_set(ac);
1160 ret = samldb_prim_group_change(ac);
1166 static int samldb_member_check(struct samldb_ctx *ac)
1168 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
1169 struct ldb_message_element *el;
1170 struct ldb_dn *member_dn, *group_dn;
1171 uint32_t prim_group_rid;
1172 struct dom_sid *sid;
1176 /* We've to walk over all modification entries and consider the "member"
1178 for (i = 0; i < ac->msg->num_elements; i++) {
1179 if (ldb_attr_cmp(ac->msg->elements[i].name, "member") != 0) {
1183 el = &ac->msg->elements[i];
1184 for (j = 0; j < el->num_values; j++) {
1185 member_dn = ldb_dn_from_ldb_val(ac, ldb,
1187 if (!ldb_dn_validate(member_dn)) {
1188 return ldb_operr(ldb);
1191 /* The "member" attribute can be modified with the
1192 * following restrictions (beside a valid DN):
1194 * - "add" operations can only be performed when the
1195 * member still doesn't exist - if not then return
1196 * ERR_ENTRY_ALREADY_EXISTS (not
1197 * ERR_ATTRIBUTE_OR_VALUE_EXISTS!)
1198 * - "delete" operations can only be performed when the
1199 * member does exist - if not then return
1200 * ERR_UNWILLING_TO_PERFORM (not
1201 * ERR_NO_SUCH_ATTRIBUTE!)
1202 * - primary group check
1204 cnt = samdb_search_count(ldb, ac, ac->msg->dn,
1206 ldb_dn_get_linearized(member_dn));
1208 return ldb_operr(ldb);
1210 if ((cnt > 0) && (LDB_FLAG_MOD_TYPE(el->flags)
1211 == LDB_FLAG_MOD_ADD)) {
1212 return LDB_ERR_ENTRY_ALREADY_EXISTS;
1214 if ((cnt == 0) && LDB_FLAG_MOD_TYPE(el->flags)
1215 == LDB_FLAG_MOD_DELETE) {
1216 return LDB_ERR_UNWILLING_TO_PERFORM;
1219 /* Denies to add "member"s to groups which are primary
1220 * ones for them - in this case return
1221 * ERR_ENTRY_ALREADY_EXISTS. */
1223 prim_group_rid = samdb_search_uint(ldb, ac,
1228 if (prim_group_rid == (uint32_t) -1) {
1229 /* the member hasn't to be a user account ->
1230 * therefore no check needed in this case. */
1234 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb),
1237 return ldb_operr(ldb);
1240 group_dn = samdb_search_dn(ldb, ac, NULL,
1242 ldap_encode_ndr_dom_sid(ac, sid));
1243 if (group_dn == NULL) {
1244 return ldb_operr(ldb);
1247 if (ldb_dn_compare(group_dn, ac->msg->dn) == 0) {
1248 return LDB_ERR_ENTRY_ALREADY_EXISTS;
1258 static int samldb_add(struct ldb_module *module, struct ldb_request *req)
1260 struct ldb_context *ldb;
1261 struct samldb_ctx *ac;
1264 ldb = ldb_module_get_ctx(module);
1265 ldb_debug(ldb, LDB_DEBUG_TRACE, "samldb_add\n");
1267 /* do not manipulate our control entries */
1268 if (ldb_dn_is_special(req->op.add.message->dn)) {
1269 return ldb_next_request(module, req);
1272 ac = samldb_ctx_init(module, req);
1274 return ldb_operr(ldb);
1277 /* build the new msg */
1278 ac->msg = ldb_msg_copy_shallow(ac, req->op.add.message);
1279 if (ac->msg == NULL) {
1281 ldb_debug(ldb, LDB_DEBUG_FATAL,
1282 "samldb_add: ldb_msg_copy_shallow failed!\n");
1283 return ldb_operr(ldb);
1286 if (samdb_find_attribute(ldb, ac->msg,
1287 "objectclass", "user") != NULL) {
1290 ret = samldb_prim_group_trigger(ac);
1291 if (ret != LDB_SUCCESS) {
1295 ret = samldb_objectclass_trigger(ac);
1296 if (ret != LDB_SUCCESS) {
1300 return samldb_fill_object(ac);
1303 if (samdb_find_attribute(ldb, ac->msg,
1304 "objectclass", "group") != NULL) {
1307 ret = samldb_objectclass_trigger(ac);
1308 if (ret != LDB_SUCCESS) {
1312 return samldb_fill_object(ac);
1315 /* perhaps a foreignSecurityPrincipal? */
1316 if (samdb_find_attribute(ldb, ac->msg,
1318 "foreignSecurityPrincipal") != NULL) {
1319 return samldb_fill_foreignSecurityPrincipal_object(ac);
1322 if (samdb_find_attribute(ldb, ac->msg,
1323 "objectclass", "classSchema") != NULL) {
1324 ret = samldb_schema_info_update(ac);
1325 if (ret != LDB_SUCCESS) {
1330 ac->type = "classSchema";
1331 return samldb_fill_object(ac);
1334 if (samdb_find_attribute(ldb, ac->msg,
1335 "objectclass", "attributeSchema") != NULL) {
1336 ret = samldb_schema_info_update(ac);
1337 if (ret != LDB_SUCCESS) {
1342 ac->type = "attributeSchema";
1343 return samldb_fill_object(ac);
1348 /* nothing matched, go on */
1349 return ldb_next_request(module, req);
1353 static int samldb_modify(struct ldb_module *module, struct ldb_request *req)
1355 struct ldb_context *ldb;
1356 struct samldb_ctx *ac;
1357 struct ldb_message_element *el, *el2;
1358 bool modified = false;
1360 uint32_t account_type;
1362 if (ldb_dn_is_special(req->op.mod.message->dn)) {
1363 /* do not manipulate our control entries */
1364 return ldb_next_request(module, req);
1367 ldb = ldb_module_get_ctx(module);
1369 /* make sure that "sAMAccountType" is not specified */
1370 el = ldb_msg_find_element(req->op.mod.message, "sAMAccountType");
1372 ldb_set_errstring(ldb,
1373 "samldb: sAMAccountType must not be specified!");
1374 return LDB_ERR_UNWILLING_TO_PERFORM;
1376 /* make sure that "isCriticalSystemObject" is not specified */
1377 el = ldb_msg_find_element(req->op.mod.message, "isCriticalSystemObject");
1379 if (ldb_request_get_control(req, LDB_CONTROL_RELAX_OID) == NULL) {
1380 ldb_set_errstring(ldb,
1381 "samldb: isCriticalSystemObject must not be specified!");
1382 return LDB_ERR_UNWILLING_TO_PERFORM;
1386 /* msDS-IntId is not allowed to be modified
1387 * except when modification comes from replication */
1388 if (ldb_msg_find_element(req->op.mod.message, "msDS-IntId")) {
1389 if (!ldb_request_get_control(req,
1390 DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
1391 return LDB_ERR_CONSTRAINT_VIOLATION;
1395 ac = samldb_ctx_init(module, req);
1397 return ldb_operr(ldb);
1400 /* build the new msg */
1401 ac->msg = ldb_msg_copy_shallow(ac, req->op.mod.message);
1402 if (ac->msg == NULL) {
1404 ldb_debug(ldb, LDB_DEBUG_FATAL,
1405 "samldb_modify: ldb_msg_copy_shallow failed!\n");
1406 return ldb_operr(ldb);
1409 el = ldb_msg_find_element(ac->msg, "groupType");
1410 if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_REPLACE)
1411 && el->num_values == 1) {
1412 uint32_t group_type, old_group_type;
1416 group_type = ldb_msg_find_attr_as_uint(ac->msg, "groupType", 0);
1417 old_group_type = samdb_search_uint(ldb, ac, 0, ac->msg->dn,
1419 if (old_group_type == 0) {
1420 return ldb_operr(ldb);
1423 /* Group type switching isn't so easy as it seems: We can only
1424 * change in this directions: global <-> universal <-> local
1425 * On each step also the group type itself
1426 * (security/distribution) is variable. */
1428 switch (group_type) {
1429 case GTYPE_SECURITY_GLOBAL_GROUP:
1430 case GTYPE_DISTRIBUTION_GLOBAL_GROUP:
1431 /* change to "universal" allowed */
1432 if ((old_group_type == GTYPE_SECURITY_DOMAIN_LOCAL_GROUP) ||
1433 (old_group_type == GTYPE_DISTRIBUTION_DOMAIN_LOCAL_GROUP)) {
1434 return LDB_ERR_UNWILLING_TO_PERFORM;
1438 case GTYPE_SECURITY_UNIVERSAL_GROUP:
1439 case GTYPE_DISTRIBUTION_UNIVERSAL_GROUP:
1440 /* each change allowed */
1443 case GTYPE_SECURITY_DOMAIN_LOCAL_GROUP:
1444 case GTYPE_DISTRIBUTION_DOMAIN_LOCAL_GROUP:
1445 /* change to "universal" allowed */
1446 if ((old_group_type == GTYPE_SECURITY_GLOBAL_GROUP) ||
1447 (old_group_type == GTYPE_DISTRIBUTION_GLOBAL_GROUP)) {
1448 return LDB_ERR_UNWILLING_TO_PERFORM;
1452 case GTYPE_SECURITY_BUILTIN_LOCAL_GROUP:
1454 /* we don't allow this "groupType" values */
1455 return LDB_ERR_UNWILLING_TO_PERFORM;
1459 account_type = ds_gtype2atype(group_type);
1460 if (account_type == 0) {
1461 ldb_set_errstring(ldb, "samldb: Unrecognized account type!");
1462 return LDB_ERR_UNWILLING_TO_PERFORM;
1464 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
1467 if (ret != LDB_SUCCESS) {
1470 el2 = ldb_msg_find_element(ac->msg, "sAMAccountType");
1471 el2->flags = LDB_FLAG_MOD_REPLACE;
1473 el = ldb_msg_find_element(ac->msg, "groupType");
1474 if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_DELETE)) {
1475 return LDB_ERR_UNWILLING_TO_PERFORM;
1478 el = ldb_msg_find_element(ac->msg, "primaryGroupID");
1480 ret = samldb_prim_group_change(ac);
1481 if (ret != LDB_SUCCESS) {
1486 el = ldb_msg_find_element(ac->msg, "userAccountControl");
1487 if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_REPLACE)
1488 && el->num_values == 1) {
1489 uint32_t user_account_control;
1493 user_account_control = ldb_msg_find_attr_as_uint(ac->msg,
1494 "userAccountControl",
1497 /* Temporary duplicate accounts aren't allowed */
1498 if ((user_account_control & UF_TEMP_DUPLICATE_ACCOUNT) != 0) {
1499 return LDB_ERR_OTHER;
1502 account_type = ds_uf2atype(user_account_control);
1503 if (account_type == 0) {
1504 ldb_set_errstring(ldb, "samldb: Unrecognized account type!");
1505 return LDB_ERR_UNWILLING_TO_PERFORM;
1507 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
1510 if (ret != LDB_SUCCESS) {
1513 el2 = ldb_msg_find_element(ac->msg, "sAMAccountType");
1514 el2->flags = LDB_FLAG_MOD_REPLACE;
1516 if (user_account_control & (UF_SERVER_TRUST_ACCOUNT | UF_PARTIAL_SECRETS_ACCOUNT)) {
1517 ret = samdb_msg_add_string(ldb, ac->msg, ac->msg,
1518 "isCriticalSystemObject",
1520 if (ret != LDB_SUCCESS) {
1523 el2 = ldb_msg_find_element(ac->msg,
1524 "isCriticalSystemObject");
1525 el2->flags = LDB_FLAG_MOD_REPLACE;
1528 if (!ldb_msg_find_element(ac->msg, "primaryGroupID")) {
1529 uint32_t rid = ds_uf2prim_group_rid(user_account_control);
1531 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
1532 "primaryGroupID", rid);
1533 if (ret != LDB_SUCCESS) {
1536 el2 = ldb_msg_find_element(ac->msg,
1538 el2->flags = LDB_FLAG_MOD_REPLACE;
1541 el = ldb_msg_find_element(ac->msg, "userAccountControl");
1542 if (el && (LDB_FLAG_MOD_TYPE(el->flags) == LDB_FLAG_MOD_DELETE)) {
1543 return LDB_ERR_UNWILLING_TO_PERFORM;
1546 el = ldb_msg_find_element(ac->msg, "member");
1548 ret = samldb_member_check(ac);
1549 if (ret != LDB_SUCCESS) {
1555 struct ldb_request *child_req;
1557 /* Now perform the real modifications as a child request */
1558 ret = ldb_build_mod_req(&child_req, ldb, ac,
1561 req, dsdb_next_callback,
1563 LDB_REQ_SET_LOCATION(child_req);
1564 if (ret != LDB_SUCCESS) {
1568 return ldb_next_request(module, child_req);
1573 /* no change which interests us, go on */
1574 return ldb_next_request(module, req);
1579 static int samldb_prim_group_users_check(struct samldb_ctx *ac)
1581 struct ldb_context *ldb;
1582 struct dom_sid *sid;
1587 ldb = ldb_module_get_ctx(ac->module);
1589 /* Finds out the SID/RID of the SAM object */
1590 sid = samdb_search_dom_sid(ldb, ac, ac->req->op.del.dn, "objectSid",
1593 /* No SID - it might not be a SAM object - therefore ok */
1596 status = dom_sid_split_rid(ac, sid, NULL, &rid);
1597 if (!NT_STATUS_IS_OK(status)) {
1598 return ldb_operr(ldb);
1601 /* Special object (security principal?) */
1605 /* Deny delete requests from groups which are primary ones */
1606 count = samdb_search_count(ldb, ac, NULL,
1607 "(&(primaryGroupID=%u)(objectClass=user))",
1610 return ldb_operr(ldb);
1613 return LDB_ERR_ENTRY_ALREADY_EXISTS;
1619 static int samldb_delete(struct ldb_module *module, struct ldb_request *req)
1621 struct samldb_ctx *ac;
1624 if (ldb_dn_is_special(req->op.del.dn)) {
1625 /* do not manipulate our control entries */
1626 return ldb_next_request(module, req);
1629 ac = samldb_ctx_init(module, req);
1631 return ldb_operr(ldb_module_get_ctx(module));
1634 ret = samldb_prim_group_users_check(ac);
1635 if (ret != LDB_SUCCESS) {
1641 return ldb_next_request(module, req);
1646 static int samldb_extended_allocate_rid_pool(struct ldb_module *module, struct ldb_request *req)
1648 struct ldb_context *ldb = ldb_module_get_ctx(module);
1649 struct dsdb_fsmo_extended_op *exop;
1652 exop = talloc_get_type(req->op.extended.data,
1653 struct dsdb_fsmo_extended_op);
1655 ldb_set_errstring(ldb,
1656 "samldb_extended_allocate_rid_pool: invalid extended data");
1657 return LDB_ERR_PROTOCOL_ERROR;
1660 ret = ridalloc_allocate_rid_pool_fsmo(module, exop);
1661 if (ret != LDB_SUCCESS) {
1665 return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
1668 static int samldb_extended(struct ldb_module *module, struct ldb_request *req)
1670 if (strcmp(req->op.extended.oid, DSDB_EXTENDED_ALLOCATE_RID_POOL) == 0) {
1671 return samldb_extended_allocate_rid_pool(module, req);
1674 return ldb_next_request(module, req);
1678 _PUBLIC_ const struct ldb_module_ops ldb_samldb_module_ops = {
1681 .modify = samldb_modify,
1682 .del = samldb_delete,
1683 .extended = samldb_extended