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_oom(ldb_module_get_ctx(ac->module));
111 if (ac->steps == NULL) {
115 if (ac->curstep == NULL)
116 return ldb_operr(ldb_module_get_ctx(ac->module));
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_operr(ldb_module_get_ctx(ac->module));
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_context *ldb, 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());
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(ldb, ac->msg);
224 if (ret != LDB_SUCCESS) {
229 name = ldb_msg_find_attr_as_string(ac->msg, "samAccountName", NULL);
231 return ldb_operr(ldb);
233 filter = talloc_asprintf(ac, "samAccountName=%s",
234 ldb_binary_encode_string(ac, name));
235 if (filter == NULL) {
236 return ldb_operr(ldb);
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 return ldb_module_oom(ac->module);
343 if ( ! samldb_msg_add_sid(ac->msg, "objectSid", ac->sid)) {
344 return ldb_operr(ldb);
347 return samldb_next_step(ac);
351 see if a krbtgt_number is available
353 static bool samldb_krbtgtnumber_available(struct samldb_ctx *ac, unsigned krbtgt_number)
355 TALLOC_CTX *tmp_ctx = talloc_new(ac);
356 struct ldb_result *res;
357 const char *attrs[] = { NULL };
360 ret = dsdb_module_search(ac->module, tmp_ctx, &res, NULL, LDB_SCOPE_SUBTREE,
361 attrs, DSDB_FLAG_NEXT_MODULE,
362 "msDC-SecondaryKrbTgtNumber=%u", krbtgt_number);
363 if (ret == LDB_SUCCESS && res->count == 0) {
364 talloc_free(tmp_ctx);
367 talloc_free(tmp_ctx);
371 /* special handling for add in RODC join */
372 static int samldb_rodc_add(struct samldb_ctx *ac)
374 struct ldb_context *ldb = ldb_module_get_ctx(ac->module);
375 unsigned krbtgt_number, i_start, i;
377 /* find a unused msDC-SecondaryKrbTgtNumber */
378 i_start = generate_random() & 0xFFFF;
383 for (i=i_start; i<=0xFFFF; i++) {
384 if (samldb_krbtgtnumber_available(ac, i)) {
389 for (i=1; i<i_start; i++) {
390 if (samldb_krbtgtnumber_available(ac, i)) {
396 ldb_asprintf_errstring(ldb_module_get_ctx(ac->module),
397 "%08X: Unable to find available msDS-SecondaryKrbTgtNumber",
398 W_ERROR_V(WERR_NO_SYSTEM_RESOURCES));
399 return LDB_ERR_OTHER;
402 if (ldb_msg_add_fmt(ac->msg, "msDS-SecondaryKrbTgtNumber", "%u", krbtgt_number) != LDB_SUCCESS) {
403 return ldb_operr(ldb);
406 return samldb_next_step(ac);
410 * samldb_dn_from_sid (async)
413 static int samldb_dn_from_sid(struct samldb_ctx *ac);
415 static int samldb_dn_from_sid_callback(struct ldb_request *req,
416 struct ldb_reply *ares)
418 struct ldb_context *ldb;
419 struct samldb_ctx *ac;
422 ac = talloc_get_type(req->context, struct samldb_ctx);
423 ldb = ldb_module_get_ctx(ac->module);
426 ret = LDB_ERR_OPERATIONS_ERROR;
429 if (ares->error != LDB_SUCCESS) {
430 return ldb_module_done(ac->req, ares->controls,
431 ares->response, ares->error);
434 switch (ares->type) {
435 case LDB_REPLY_ENTRY:
437 if (ac->res_dn != NULL) {
439 ldb_set_errstring(ldb,
440 "Invalid number of results while searching "
441 "for domain objects!");
442 ret = LDB_ERR_OPERATIONS_ERROR;
445 ac->res_dn = ldb_dn_copy(ac, ares->message->dn);
451 case LDB_REPLY_REFERRAL:
460 /* found or not found, go on */
461 ret = samldb_next_step(ac);
466 if (ret != LDB_SUCCESS) {
467 return ldb_module_done(ac->req, NULL, NULL, ret);
473 /* Finds the DN "res_dn" of an object with a given SID "sid" */
474 static int samldb_dn_from_sid(struct samldb_ctx *ac)
476 struct ldb_context *ldb;
477 static const char * const attrs[] = { NULL };
478 struct ldb_request *req;
482 ldb = ldb_module_get_ctx(ac->module);
485 return ldb_operr(ldb);
487 filter = talloc_asprintf(ac, "(objectSid=%s)",
488 ldap_encode_ndr_dom_sid(ac, ac->sid));
492 ret = ldb_build_search_req(&req, ldb, ac,
493 ldb_get_default_basedn(ldb),
497 ac, samldb_dn_from_sid_callback,
499 if (ret != LDB_SUCCESS)
502 return ldb_next_request(ac->module, req);
506 static int samldb_check_primaryGroupID_1(struct samldb_ctx *ac)
508 struct ldb_context *ldb;
511 ldb = ldb_module_get_ctx(ac->module);
513 rid = samdb_result_uint(ac->msg, "primaryGroupID", ~0);
514 ac->sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
516 return ldb_operr(ldb);
519 return samldb_next_step(ac);
522 static int samldb_check_primaryGroupID_2(struct samldb_ctx *ac)
524 if (ac->res_dn == NULL) {
525 struct ldb_context *ldb;
526 ldb = ldb_module_get_ctx(ac->module);
527 ldb_asprintf_errstring(ldb,
528 "Failed to find group sid %s!",
529 dom_sid_string(ac->sid, ac->sid));
530 return LDB_ERR_UNWILLING_TO_PERFORM;
533 return samldb_next_step(ac);
538 * samldb_find_for_defaultObjectCategory (async)
541 static int samldb_find_for_defaultObjectCategory_callback(struct ldb_request *req,
542 struct ldb_reply *ares)
544 struct ldb_context *ldb;
545 struct samldb_ctx *ac;
548 ac = talloc_get_type(req->context, struct samldb_ctx);
549 ldb = ldb_module_get_ctx(ac->module);
552 ret = LDB_ERR_OPERATIONS_ERROR;
555 if (ares->error != LDB_SUCCESS) {
556 if (ares->error == LDB_ERR_NO_SUCH_OBJECT) {
557 if (ldb_request_get_control(ac->req,
558 LDB_CONTROL_RELAX_OID) != NULL) {
559 /* Don't be pricky when the DN doesn't exist */
560 /* if we have the RELAX control specified */
561 ac->res_dn = req->op.search.base;
562 return samldb_next_step(ac);
564 ldb_set_errstring(ldb,
565 "samldb_find_defaultObjectCategory: "
566 "Invalid DN for 'defaultObjectCategory'!");
567 ares->error = LDB_ERR_CONSTRAINT_VIOLATION;
571 return ldb_module_done(ac->req, ares->controls,
572 ares->response, ares->error);
575 switch (ares->type) {
576 case LDB_REPLY_ENTRY:
577 ac->res_dn = talloc_steal(ac, ares->message->dn);
582 case LDB_REPLY_REFERRAL:
591 if (ac->res_dn != NULL) {
592 /* when found go on */
593 ret = samldb_next_step(ac);
595 ret = LDB_ERR_OPERATIONS_ERROR;
601 if (ret != LDB_SUCCESS) {
602 return ldb_module_done(ac->req, NULL, NULL, ret);
608 static int samldb_find_for_defaultObjectCategory(struct samldb_ctx *ac)
610 struct ldb_context *ldb;
611 struct ldb_request *req;
612 static const char *no_attrs[] = { NULL };
615 ldb = ldb_module_get_ctx(ac->module);
619 ret = ldb_build_search_req(&req, ldb, ac,
620 ac->dn, LDB_SCOPE_BASE,
621 "(objectClass=classSchema)", no_attrs,
623 samldb_find_for_defaultObjectCategory_callback,
625 if (ret != LDB_SUCCESS) {
629 ret = dsdb_request_add_controls(req,
630 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT);
631 if (ret != LDB_SUCCESS) {
635 return ldb_next_request(ac->module, req);
639 * msDS-IntId attributeSchema attribute handling
640 * during LDB_ADD request processing
642 static int samldb_add_handle_msDS_IntId(struct samldb_ctx *ac)
647 uint32_t system_flags;
648 struct ldb_context *ldb;
649 struct ldb_result *ldb_res;
650 struct ldb_dn *schema_dn;
652 ldb = ldb_module_get_ctx(ac->module);
653 schema_dn = ldb_get_schema_basedn(ldb);
655 /* replicated update should always go through */
656 if (ldb_request_get_control(ac->req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
660 /* msDS-IntId is handled by system and should never be
661 * passed by clients */
662 if (ldb_msg_find_element(ac->msg, "msDS-IntId")) {
663 return LDB_ERR_UNWILLING_TO_PERFORM;
666 /* do not generate msDS-IntId if Relax control is passed */
667 if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
671 /* check Functional Level */
672 if (dsdb_functional_level(ldb) < DS_DOMAIN_FUNCTION_2003) {
676 /* check systemFlags for SCHEMA_BASE_OBJECT flag */
677 system_flags = ldb_msg_find_attr_as_uint(ac->msg, "systemFlags", 0);
678 if (system_flags & SYSTEM_FLAG_SCHEMA_BASE_OBJECT) {
682 /* Generate new value for msDs-IntId
683 * Value should be in 0x80000000..0xBFFFFFFF range */
684 msds_intid = generate_random() % 0X3FFFFFFF;
685 msds_intid += 0x80000000;
687 /* probe id values until unique one is found */
690 if (msds_intid > 0xBFFFFFFF) {
691 msds_intid = 0x80000001;
694 ret = dsdb_module_search(ac->module, ac,
696 schema_dn, LDB_SCOPE_ONELEVEL, NULL,
697 DSDB_FLAG_NEXT_MODULE,
698 "(msDS-IntId=%d)", msds_intid);
699 if (ret != LDB_SUCCESS) {
700 ldb_debug_set(ldb, LDB_DEBUG_ERROR,
701 __location__": Searching for msDS-IntId=%d failed - %s\n",
704 return ldb_operr(ldb);
706 id_exists = (ldb_res->count > 0);
708 talloc_free(ldb_res);
711 return ldb_msg_add_fmt(ac->msg, "msDS-IntId", "%d", msds_intid);
716 * samldb_add_entry (async)
719 static int samldb_add_entry_callback(struct ldb_request *req,
720 struct ldb_reply *ares)
722 struct ldb_context *ldb;
723 struct samldb_ctx *ac;
726 ac = talloc_get_type(req->context, struct samldb_ctx);
727 ldb = ldb_module_get_ctx(ac->module);
730 return ldb_module_done(ac->req, NULL, NULL,
731 LDB_ERR_OPERATIONS_ERROR);
734 if (ares->type == LDB_REPLY_REFERRAL) {
735 return ldb_module_send_referral(ac->req, ares->referral);
738 if (ares->error != LDB_SUCCESS) {
739 return ldb_module_done(ac->req, ares->controls,
740 ares->response, ares->error);
742 if (ares->type != LDB_REPLY_DONE) {
743 ldb_set_errstring(ldb,
744 "Invalid reply type!\n");
745 return ldb_module_done(ac->req, NULL, NULL,
746 LDB_ERR_OPERATIONS_ERROR);
749 /* The caller may wish to get controls back from the add */
750 ac->ares = talloc_steal(ac, ares);
752 ret = samldb_next_step(ac);
753 if (ret != LDB_SUCCESS) {
754 return ldb_module_done(ac->req, NULL, NULL, ret);
759 static int samldb_add_entry(struct samldb_ctx *ac)
761 struct ldb_context *ldb;
762 struct ldb_request *req;
765 ldb = ldb_module_get_ctx(ac->module);
767 ret = ldb_build_add_req(&req, ldb, ac,
770 ac, samldb_add_entry_callback,
772 if (ret != LDB_SUCCESS) {
776 return ldb_next_request(ac->module, req);
780 * return true if msg carries an attributeSchema that is intended to be RODC
781 * filtered but is also a system-critical attribute.
783 static bool check_rodc_critical_attribute(struct ldb_message *msg)
785 uint32_t schemaFlagsEx, searchFlags, rodc_filtered_flags;
787 schemaFlagsEx = ldb_msg_find_attr_as_uint(msg, "schemaFlagsEx", 0);
788 searchFlags = ldb_msg_find_attr_as_uint(msg, "searchFlags", 0);
789 rodc_filtered_flags = (SEARCH_FLAG_RODC_ATTRIBUTE | SEARCH_FLAG_CONFIDENTIAL);
791 if ((schemaFlagsEx & SCHEMA_FLAG_ATTR_IS_CRITICAL) &&
792 ((searchFlags & rodc_filtered_flags) == rodc_filtered_flags)) {
800 static int samldb_fill_object(struct samldb_ctx *ac, const char *type)
802 struct ldb_context *ldb;
803 struct loadparm_context *lp_ctx;
804 enum sid_generator sid_generator;
806 struct ldb_control *rodc_control;
808 ldb = ldb_module_get_ctx(ac->module);
810 /* Add informations for the different account types */
812 if (strcmp(ac->type, "user") == 0) {
813 ret = samdb_find_or_add_attribute(ldb, ac->msg,
814 "userAccountControl", "546");
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,
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,
826 "badPasswordTime", "0");
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,
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 if (!ldb_msg_find_element(ac->msg, "primaryGroupID")) {
838 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
839 "primaryGroupID", DOMAIN_RID_USERS);
840 if (ret != LDB_SUCCESS) return ret;
842 ret = samdb_find_or_add_attribute(ldb, ac->msg,
843 "accountExpires", "9223372036854775807");
844 if (ret != LDB_SUCCESS) return ret;
845 ret = samdb_find_or_add_attribute(ldb, ac->msg,
847 if (ret != LDB_SUCCESS) return ret;
848 } else if (strcmp(ac->type, "group") == 0) {
849 ret = samdb_find_or_add_attribute(ldb, ac->msg,
850 "groupType", "-2147483646");
851 if (ret != LDB_SUCCESS) return ret;
852 } else if (strcmp(ac->type, "classSchema") == 0) {
853 const struct ldb_val *rdn_value, *def_obj_cat_val;
855 ret = samdb_find_or_add_attribute(ldb, ac->msg,
857 if (ret != LDB_SUCCESS) return ret;
859 /* do not allow to mark an attributeSchema as RODC filtered if it
860 * is system-critical */
861 if (check_rodc_critical_attribute(ac->msg)) {
862 ldb_asprintf_errstring(ldb, "Refusing schema add of %s - cannot combine critical class with RODC filtering",
863 ldb_dn_get_linearized(ac->msg->dn));
864 return LDB_ERR_UNWILLING_TO_PERFORM;
868 rdn_value = ldb_dn_get_rdn_val(ac->msg->dn);
869 if (!ldb_msg_find_element(ac->msg, "lDAPDisplayName")) {
870 /* the RDN has prefix "CN" */
871 ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
872 samdb_cn_to_lDAPDisplayName(ac,
873 (const char *) rdn_value->data));
874 if (ret != LDB_SUCCESS) {
880 if (!ldb_msg_find_element(ac->msg, "schemaIDGUID")) {
883 guid = GUID_random();
884 ret = dsdb_msg_add_guid(ac->msg, &guid, "schemaIDGUID");
885 if (ret != LDB_SUCCESS) {
891 def_obj_cat_val = ldb_msg_find_ldb_val(ac->msg,
892 "defaultObjectCategory");
893 if (def_obj_cat_val != NULL) {
894 /* "defaultObjectCategory" has been set by the caller.
895 * Do some checks for consistency.
896 * NOTE: The real constraint check (that
897 * 'defaultObjectCategory' is the DN of the new
898 * objectclass or any parent of it) is still incomplete.
899 * For now we say that 'defaultObjectCategory' is valid
900 * if it exists and it is of objectclass "classSchema".
902 ac->dn = ldb_dn_from_ldb_val(ac, ldb, def_obj_cat_val);
903 if (ac->dn == NULL) {
904 ldb_set_errstring(ldb,
905 "Invalid DN for 'defaultObjectCategory'!");
906 return LDB_ERR_CONSTRAINT_VIOLATION;
909 /* "defaultObjectCategory" has not been set by the
910 * caller. Use the entry DN for it. */
911 ac->dn = ac->msg->dn;
913 ret = samdb_msg_add_string(ldb, ac, ac->msg,
914 "defaultObjectCategory",
915 ldb_dn_get_linearized(ac->dn));
916 if (ret != LDB_SUCCESS) {
922 ret = samldb_add_step(ac, samldb_add_entry);
923 if (ret != LDB_SUCCESS) return ret;
925 /* Now perform the checks for the 'defaultObjectCategory'. The
926 * lookup DN was already saved in "ac->dn" */
927 ret = samldb_add_step(ac, samldb_find_for_defaultObjectCategory);
928 if (ret != LDB_SUCCESS) return ret;
930 return samldb_first_step(ac);
931 } else if (strcmp(ac->type, "attributeSchema") == 0) {
932 const struct ldb_val *rdn_value;
933 rdn_value = ldb_dn_get_rdn_val(ac->msg->dn);
934 if (!ldb_msg_find_element(ac->msg, "lDAPDisplayName")) {
935 /* the RDN has prefix "CN" */
936 ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
937 samdb_cn_to_lDAPDisplayName(ac,
938 (const char *) rdn_value->data));
939 if (ret != LDB_SUCCESS) {
945 /* do not allow to mark an attributeSchema as RODC filtered if it
946 * is system-critical */
947 if (check_rodc_critical_attribute(ac->msg)) {
948 ldb_asprintf_errstring(ldb, "Refusing schema add of %s - cannot combine critical attribute with RODC filtering",
949 ldb_dn_get_linearized(ac->msg->dn));
950 return LDB_ERR_UNWILLING_TO_PERFORM;
953 ret = samdb_find_or_add_attribute(ldb, ac->msg,
954 "isSingleValued", "FALSE");
955 if (ret != LDB_SUCCESS) return ret;
957 if (!ldb_msg_find_element(ac->msg, "schemaIDGUID")) {
960 guid = GUID_random();
961 ret = dsdb_msg_add_guid(ac->msg, &guid, "schemaIDGUID");
962 if (ret != LDB_SUCCESS) {
968 /* handle msDS-IntID attribute */
969 ret = samldb_add_handle_msDS_IntId(ac);
970 if (ret != LDB_SUCCESS) return ret;
972 ret = samldb_add_step(ac, samldb_add_entry);
973 if (ret != LDB_SUCCESS) return ret;
975 return samldb_first_step(ac);
977 ldb_asprintf_errstring(ldb,
978 "Invalid entry type!");
979 return LDB_ERR_OPERATIONS_ERROR;
982 /* check if we have a valid samAccountName */
983 ret = samldb_add_step(ac, samldb_check_samAccountName);
984 if (ret != LDB_SUCCESS) return ret;
986 /* check account_type/group_type */
987 ret = samldb_add_step(ac, samldb_check_samAccountType);
988 if (ret != LDB_SUCCESS) return ret;
990 /* check if we have a valid primary group ID */
991 if (strcmp(ac->type, "user") == 0) {
992 ret = samldb_add_step(ac, samldb_check_primaryGroupID_1);
993 if (ret != LDB_SUCCESS) return ret;
994 ret = samldb_add_step(ac, samldb_dn_from_sid);
995 if (ret != LDB_SUCCESS) return ret;
996 ret = samldb_add_step(ac, samldb_check_primaryGroupID_2);
997 if (ret != LDB_SUCCESS) return ret;
1000 lp_ctx = talloc_get_type(ldb_get_opaque(ldb, "loadparm"),
1001 struct loadparm_context);
1003 /* don't allow objectSID to be specified without the RELAX control */
1004 ac->sid = samdb_result_dom_sid(ac, ac->msg, "objectSid");
1005 if (ac->sid && !ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID) &&
1006 !dsdb_module_am_system(ac->module)) {
1007 ldb_asprintf_errstring(ldb, "No SID may be specified in user/group creation for %s",
1008 ldb_dn_get_linearized(ac->msg->dn));
1009 return LDB_ERR_UNWILLING_TO_PERFORM;
1013 sid_generator = lpcfg_sid_generator(lp_ctx);
1014 if (sid_generator == SID_GENERATOR_INTERNAL) {
1015 ret = samldb_add_step(ac, samldb_allocate_sid);
1016 if (ret != LDB_SUCCESS) return ret;
1020 rodc_control = ldb_request_get_control(ac->req, LDB_CONTROL_RODC_DCPROMO_OID);
1022 /* see [MS-ADTS] 3.1.1.3.4.1.23 LDAP_SERVER_RODC_DCPROMO_OID */
1023 rodc_control->critical = false;
1024 ret = samldb_add_step(ac, samldb_rodc_add);
1025 if (ret != LDB_SUCCESS) return ret;
1029 /* finally proceed with adding the entry */
1030 ret = samldb_add_step(ac, samldb_add_entry);
1031 if (ret != LDB_SUCCESS) return ret;
1033 return samldb_first_step(ac);
1036 static int samldb_fill_foreignSecurityPrincipal_object(struct samldb_ctx *ac)
1038 struct ldb_context *ldb;
1041 ldb = ldb_module_get_ctx(ac->module);
1043 ac->sid = samdb_result_dom_sid(ac->msg, ac->msg, "objectSid");
1044 if (ac->sid == NULL) {
1045 ac->sid = dom_sid_parse_talloc(ac->msg,
1046 (const char *)ldb_dn_get_rdn_val(ac->msg->dn)->data);
1048 ldb_set_errstring(ldb,
1049 "No valid SID found in "
1050 "ForeignSecurityPrincipal CN!");
1052 return LDB_ERR_CONSTRAINT_VIOLATION;
1054 if ( ! samldb_msg_add_sid(ac->msg, "objectSid", ac->sid)) {
1056 return ldb_operr(ldb);
1060 /* finally proceed with adding the entry */
1061 ret = samldb_add_step(ac, samldb_add_entry);
1062 if (ret != LDB_SUCCESS) return ret;
1064 return samldb_first_step(ac);
1067 static int samldb_schema_info_update(struct samldb_ctx *ac)
1070 struct ldb_context *ldb;
1071 struct dsdb_schema *schema;
1073 /* replicated update should always go through */
1074 if (ldb_request_get_control(ac->req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
1078 /* do not update schemaInfo during provisioning */
1079 if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
1083 ldb = ldb_module_get_ctx(ac->module);
1084 schema = dsdb_get_schema(ldb, NULL);
1086 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
1087 "samldb_schema_info_update: no dsdb_schema loaded");
1088 DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
1089 return ldb_operr(ldb);
1092 werr = dsdb_module_schema_info_update(ac->module, schema, DSDB_FLAG_NEXT_MODULE);
1093 if (!W_ERROR_IS_OK(werr)) {
1094 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
1095 "samldb_schema_info_update: "
1096 "dsdb_module_schema_info_update failed with %s",
1098 DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
1099 return ldb_operr(ldb);
1106 static int samldb_prim_group_change(struct samldb_ctx *ac)
1108 struct ldb_context *ldb;
1109 const char * attrs[] = { "primaryGroupID", "memberOf", NULL };
1110 struct ldb_result *res;
1111 struct ldb_message_element *el;
1112 struct ldb_message *msg;
1114 struct dom_sid *sid;
1115 struct ldb_dn *prev_prim_group_dn, *new_prim_group_dn;
1118 ldb = ldb_module_get_ctx(ac->module);
1120 /* Fetch informations from the existing object */
1122 ret = ldb_search(ldb, ac, &res, ac->msg->dn, LDB_SCOPE_BASE, attrs,
1124 if (ret != LDB_SUCCESS) {
1128 /* Finds out the DN of the old primary group */
1130 rid = samdb_result_uint(res->msgs[0], "primaryGroupID", (uint32_t) -1);
1131 if (rid == (uint32_t) -1) {
1132 /* User objects do always have a mandatory "primaryGroupID"
1133 * attribute. If this doesn't exist then the object is of the
1134 * wrong type. This is the exact Windows error code */
1135 return LDB_ERR_OBJECT_CLASS_VIOLATION;
1138 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
1140 return ldb_operr(ldb);
1143 prev_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSID=%s)",
1144 dom_sid_string(ac, sid));
1145 if (prev_prim_group_dn == NULL) {
1146 return ldb_operr(ldb);
1149 /* Finds out the DN of the new primary group */
1151 rid = samdb_result_uint(ac->msg, "primaryGroupID", (uint32_t) -1);
1152 if (rid == (uint32_t) -1) {
1153 /* we aren't affected of any primary group change */
1157 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
1159 return ldb_operr(ldb);
1162 new_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSID=%s)",
1163 dom_sid_string(ac, sid));
1164 if (new_prim_group_dn == NULL) {
1165 /* Here we know if the specified new primary group candidate is
1167 return LDB_ERR_UNWILLING_TO_PERFORM;
1170 /* Only update the "member" attributes when we really do have a change */
1171 if (ldb_dn_compare(new_prim_group_dn, prev_prim_group_dn) != 0) {
1172 /* We need to be already a normal member of the new primary
1173 * group in order to be successful. */
1174 el = samdb_find_attribute(ldb, res->msgs[0], "memberOf",
1175 ldb_dn_get_linearized(new_prim_group_dn));
1177 return LDB_ERR_UNWILLING_TO_PERFORM;
1180 /* Remove the "member" attribute on the new primary group */
1181 msg = talloc_zero(ac, struct ldb_message);
1182 msg->dn = new_prim_group_dn;
1184 ret = samdb_msg_add_delval(ldb, ac, msg, "member",
1185 ldb_dn_get_linearized(ac->msg->dn));
1186 if (ret != LDB_SUCCESS) {
1190 ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
1191 if (ret != LDB_SUCCESS) {
1195 /* Add a "member" attribute for the previous primary group */
1196 msg = talloc_zero(ac, struct ldb_message);
1197 msg->dn = prev_prim_group_dn;
1199 ret = samdb_msg_add_addval(ldb, ac, msg, "member",
1200 ldb_dn_get_linearized(ac->msg->dn));
1201 if (ret != LDB_SUCCESS) {
1205 ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
1206 if (ret != LDB_SUCCESS) {
1215 static int samldb_member_check(struct samldb_ctx *ac)
1217 struct ldb_context *ldb;
1218 struct ldb_message_element *el;
1219 struct ldb_dn *member_dn, *group_dn;
1220 uint32_t prim_group_rid;
1221 struct dom_sid *sid;
1224 ldb = ldb_module_get_ctx(ac->module);
1226 el = ldb_msg_find_element(ac->msg, "member");
1228 /* we aren't affected */
1232 for (i = 0; i < el->num_values; i++) {
1233 /* Denies to add "member"s to groups which are primary ones
1235 member_dn = ldb_dn_from_ldb_val(ac, ldb, &el->values[i]);
1236 if (!ldb_dn_validate(member_dn)) {
1237 return ldb_operr(ldb);
1240 prim_group_rid = samdb_search_uint(ldb, ac, (uint32_t) -1,
1241 member_dn, "primaryGroupID",
1243 if (prim_group_rid == (uint32_t) -1) {
1244 /* the member hasn't to be a user account -> therefore
1245 * no check needed in this case. */
1249 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb),
1252 return ldb_operr(ldb);
1255 group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSID=%s)",
1256 dom_sid_string(ac, sid));
1257 if (group_dn == NULL) {
1258 return ldb_operr(ldb);
1261 if (ldb_dn_compare(group_dn, ac->msg->dn) == 0) {
1262 return LDB_ERR_ENTRY_ALREADY_EXISTS;
1270 static int samldb_prim_group_users_check(struct samldb_ctx *ac)
1272 struct ldb_context *ldb;
1273 struct dom_sid *sid;
1278 ldb = ldb_module_get_ctx(ac->module);
1280 /* Finds out the SID/RID of the SAM object */
1281 sid = samdb_search_dom_sid(ldb, ac, ac->req->op.del.dn, "objectSID",
1284 /* No SID - it might not be a SAM object - therefore ok */
1287 status = dom_sid_split_rid(ac, sid, NULL, &rid);
1288 if (!NT_STATUS_IS_OK(status)) {
1289 return ldb_operr(ldb);
1292 /* Special object (security principal?) */
1296 /* Deny delete requests from groups which are primary ones */
1297 count = samdb_search_count(ldb, NULL,
1298 "(&(primaryGroupID=%u)(objectClass=user))",
1301 return ldb_operr(ldb);
1304 return LDB_ERR_ENTRY_ALREADY_EXISTS;
1312 static int samldb_add(struct ldb_module *module, struct ldb_request *req)
1314 struct ldb_context *ldb;
1315 struct samldb_ctx *ac;
1318 ldb = ldb_module_get_ctx(module);
1319 ldb_debug(ldb, LDB_DEBUG_TRACE, "samldb_add\n");
1321 /* do not manipulate our control entries */
1322 if (ldb_dn_is_special(req->op.add.message->dn)) {
1323 return ldb_next_request(module, req);
1326 ac = samldb_ctx_init(module, req);
1328 return ldb_operr(ldb);
1331 /* build the new msg */
1332 ac->msg = ldb_msg_copy(ac, ac->req->op.add.message);
1335 ldb_debug(ldb, LDB_DEBUG_FATAL,
1336 "samldb_add: ldb_msg_copy failed!\n");
1337 return ldb_operr(ldb);
1340 if (samdb_find_attribute(ldb, ac->msg,
1341 "objectclass", "user") != NULL) {
1342 return samldb_fill_object(ac, "user");
1345 if (samdb_find_attribute(ldb, ac->msg,
1346 "objectclass", "group") != NULL) {
1347 return samldb_fill_object(ac, "group");
1350 /* perhaps a foreignSecurityPrincipal? */
1351 if (samdb_find_attribute(ldb, ac->msg,
1353 "foreignSecurityPrincipal") != NULL) {
1354 return samldb_fill_foreignSecurityPrincipal_object(ac);
1357 if (samdb_find_attribute(ldb, ac->msg,
1358 "objectclass", "classSchema") != NULL) {
1359 ret = samldb_schema_info_update(ac);
1360 if (ret != LDB_SUCCESS) {
1365 return samldb_fill_object(ac, "classSchema");
1368 if (samdb_find_attribute(ldb, ac->msg,
1369 "objectclass", "attributeSchema") != NULL) {
1370 ret = samldb_schema_info_update(ac);
1371 if (ret != LDB_SUCCESS) {
1376 return samldb_fill_object(ac, "attributeSchema");
1381 /* nothing matched, go on */
1382 return ldb_next_request(module, req);
1386 static int samldb_modify(struct ldb_module *module, struct ldb_request *req)
1388 struct ldb_context *ldb;
1389 struct samldb_ctx *ac;
1390 struct ldb_message *msg;
1391 struct ldb_message_element *el, *el2;
1393 uint32_t account_type;
1395 if (ldb_dn_is_special(req->op.mod.message->dn)) {
1396 /* do not manipulate our control entries */
1397 return ldb_next_request(module, req);
1400 ldb = ldb_module_get_ctx(module);
1402 if (ldb_msg_find_element(req->op.mod.message, "sAMAccountType") != NULL) {
1403 ldb_asprintf_errstring(ldb,
1404 "sAMAccountType must not be specified!");
1405 return LDB_ERR_UNWILLING_TO_PERFORM;
1408 /* msDS-IntId is not allowed to be modified
1409 * except when modification comes from replication */
1410 if (ldb_msg_find_element(req->op.mod.message, "msDS-IntId")) {
1411 if (!ldb_request_get_control(req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
1412 return LDB_ERR_CONSTRAINT_VIOLATION;
1416 ac = samldb_ctx_init(module, req);
1418 return ldb_operr(ldb);
1421 /* TODO: do not modify original request, create a new one */
1423 el = ldb_msg_find_element(req->op.mod.message, "groupType");
1424 if (el && (el->flags == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1425 uint32_t group_type;
1427 req->op.mod.message = msg = ldb_msg_copy_shallow(req,
1428 req->op.mod.message);
1430 group_type = strtoul((const char *)el->values[0].data, NULL, 0);
1431 account_type = ds_gtype2atype(group_type);
1432 ret = samdb_msg_add_uint(ldb, msg, msg,
1435 if (ret != LDB_SUCCESS) {
1438 el2 = ldb_msg_find_element(msg, "sAMAccountType");
1439 el2->flags = LDB_FLAG_MOD_REPLACE;
1441 if (el && (el->flags == LDB_FLAG_MOD_DELETE)) {
1442 return LDB_ERR_UNWILLING_TO_PERFORM;
1445 el = ldb_msg_find_element(req->op.mod.message, "primaryGroupID");
1446 if (el && (el->flags == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1447 req->op.mod.message = ac->msg = ldb_msg_copy_shallow(req,
1448 req->op.mod.message);
1450 ret = samldb_prim_group_change(ac);
1451 if (ret != LDB_SUCCESS) {
1455 if (el && (el->flags == LDB_FLAG_MOD_DELETE)) {
1456 return LDB_ERR_UNWILLING_TO_PERFORM;
1459 el = ldb_msg_find_element(req->op.mod.message, "userAccountControl");
1460 if (el && (el->flags == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1461 uint32_t user_account_control;
1463 req->op.mod.message = msg = ldb_msg_copy_shallow(req,
1464 req->op.mod.message);
1466 user_account_control = strtoul((const char *)el->values[0].data,
1468 account_type = ds_uf2atype(user_account_control);
1469 ret = samdb_msg_add_uint(ldb, msg, msg,
1472 if (ret != LDB_SUCCESS) {
1475 el2 = ldb_msg_find_element(msg, "sAMAccountType");
1476 el2->flags = LDB_FLAG_MOD_REPLACE;
1478 if (user_account_control & UF_SERVER_TRUST_ACCOUNT) {
1479 ret = samdb_msg_add_string(ldb, msg, msg,
1480 "isCriticalSystemObject", "TRUE");
1481 if (ret != LDB_SUCCESS) {
1484 el2 = ldb_msg_find_element(msg, "isCriticalSystemObject");
1485 el2->flags = LDB_FLAG_MOD_REPLACE;
1487 /* DCs have primaryGroupID of DOMAIN_RID_DCS */
1488 if (!ldb_msg_find_element(msg, "primaryGroupID")) {
1489 ret = samdb_msg_add_uint(ldb, msg, msg,
1490 "primaryGroupID", DOMAIN_RID_DCS);
1491 if (ret != LDB_SUCCESS) {
1494 el2 = ldb_msg_find_element(msg, "primaryGroupID");
1495 el2->flags = LDB_FLAG_MOD_REPLACE;
1499 if (el && (el->flags == LDB_FLAG_MOD_DELETE)) {
1500 return LDB_ERR_UNWILLING_TO_PERFORM;
1503 el = ldb_msg_find_element(req->op.mod.message, "member");
1504 if (el && el->flags & (LDB_FLAG_MOD_ADD|LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1505 req->op.mod.message = ac->msg = ldb_msg_copy_shallow(req,
1506 req->op.mod.message);
1508 ret = samldb_member_check(ac);
1509 if (ret != LDB_SUCCESS) {
1514 return ldb_next_request(module, req);
1518 static int samldb_delete(struct ldb_module *module, struct ldb_request *req)
1520 struct samldb_ctx *ac;
1523 if (ldb_dn_is_special(req->op.del.dn)) {
1524 /* do not manipulate our control entries */
1525 return ldb_next_request(module, req);
1528 ac = samldb_ctx_init(module, req);
1530 return ldb_operr(ldb_module_get_ctx(module));
1532 ret = samldb_prim_group_users_check(ac);
1533 if (ret != LDB_SUCCESS) {
1537 return ldb_next_request(module, req);
1540 static int samldb_extended_allocate_rid_pool(struct ldb_module *module, struct ldb_request *req)
1542 struct ldb_context *ldb = ldb_module_get_ctx(module);
1543 struct dsdb_fsmo_extended_op *exop;
1546 exop = talloc_get_type(req->op.extended.data, struct dsdb_fsmo_extended_op);
1548 ldb_debug(ldb, LDB_DEBUG_FATAL, "samldb_extended_allocate_rid_pool: invalid extended data\n");
1549 return LDB_ERR_PROTOCOL_ERROR;
1552 ret = ridalloc_allocate_rid_pool_fsmo(module, exop);
1553 if (ret != LDB_SUCCESS) {
1557 return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
1560 static int samldb_extended(struct ldb_module *module, struct ldb_request *req)
1562 if (strcmp(req->op.extended.oid, DSDB_EXTENDED_ALLOCATE_RID_POOL) == 0) {
1563 return samldb_extended_allocate_rid_pool(module, req);
1566 return ldb_next_request(module, req);
1570 _PUBLIC_ const struct ldb_module_ops ldb_samldb_module_ops = {
1573 .modify = samldb_modify,
1574 .del = samldb_delete,
1575 .extended = samldb_extended