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 * samldb_dn_from_sid (async)
354 static int samldb_dn_from_sid(struct samldb_ctx *ac);
356 static int samldb_dn_from_sid_callback(struct ldb_request *req,
357 struct ldb_reply *ares)
359 struct ldb_context *ldb;
360 struct samldb_ctx *ac;
363 ac = talloc_get_type(req->context, struct samldb_ctx);
364 ldb = ldb_module_get_ctx(ac->module);
367 ret = LDB_ERR_OPERATIONS_ERROR;
370 if (ares->error != LDB_SUCCESS) {
371 return ldb_module_done(ac->req, ares->controls,
372 ares->response, ares->error);
375 switch (ares->type) {
376 case LDB_REPLY_ENTRY:
378 if (ac->res_dn != NULL) {
380 ldb_set_errstring(ldb,
381 "Invalid number of results while searching "
382 "for domain objects!");
383 ret = LDB_ERR_OPERATIONS_ERROR;
386 ac->res_dn = ldb_dn_copy(ac, ares->message->dn);
392 case LDB_REPLY_REFERRAL:
401 /* found or not found, go on */
402 ret = samldb_next_step(ac);
407 if (ret != LDB_SUCCESS) {
408 return ldb_module_done(ac->req, NULL, NULL, ret);
414 /* Finds the DN "res_dn" of an object with a given SID "sid" */
415 static int samldb_dn_from_sid(struct samldb_ctx *ac)
417 struct ldb_context *ldb;
418 static const char * const attrs[] = { NULL };
419 struct ldb_request *req;
423 ldb = ldb_module_get_ctx(ac->module);
426 return ldb_operr(ldb);
428 filter = talloc_asprintf(ac, "(objectSid=%s)",
429 ldap_encode_ndr_dom_sid(ac, ac->sid));
433 ret = ldb_build_search_req(&req, ldb, ac,
434 ldb_get_default_basedn(ldb),
438 ac, samldb_dn_from_sid_callback,
440 if (ret != LDB_SUCCESS)
443 return ldb_next_request(ac->module, req);
447 static int samldb_check_primaryGroupID_1(struct samldb_ctx *ac)
449 struct ldb_context *ldb;
452 ldb = ldb_module_get_ctx(ac->module);
454 rid = samdb_result_uint(ac->msg, "primaryGroupID", ~0);
455 ac->sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
457 return ldb_operr(ldb);
460 return samldb_next_step(ac);
463 static int samldb_check_primaryGroupID_2(struct samldb_ctx *ac)
465 if (ac->res_dn == NULL) {
466 struct ldb_context *ldb;
467 ldb = ldb_module_get_ctx(ac->module);
468 ldb_asprintf_errstring(ldb,
469 "Failed to find group sid %s!",
470 dom_sid_string(ac->sid, ac->sid));
471 return LDB_ERR_UNWILLING_TO_PERFORM;
474 return samldb_next_step(ac);
479 * samldb_find_for_defaultObjectCategory (async)
482 static int samldb_find_for_defaultObjectCategory_callback(struct ldb_request *req,
483 struct ldb_reply *ares)
485 struct ldb_context *ldb;
486 struct samldb_ctx *ac;
489 ac = talloc_get_type(req->context, struct samldb_ctx);
490 ldb = ldb_module_get_ctx(ac->module);
493 ret = LDB_ERR_OPERATIONS_ERROR;
496 if (ares->error != LDB_SUCCESS) {
497 if (ares->error == LDB_ERR_NO_SUCH_OBJECT) {
498 if (ldb_request_get_control(ac->req,
499 LDB_CONTROL_RELAX_OID) != NULL) {
500 /* Don't be pricky when the DN doesn't exist */
501 /* if we have the RELAX control specified */
502 ac->res_dn = req->op.search.base;
503 return samldb_next_step(ac);
505 ldb_set_errstring(ldb,
506 "samldb_find_defaultObjectCategory: "
507 "Invalid DN for 'defaultObjectCategory'!");
508 ares->error = LDB_ERR_CONSTRAINT_VIOLATION;
512 return ldb_module_done(ac->req, ares->controls,
513 ares->response, ares->error);
516 switch (ares->type) {
517 case LDB_REPLY_ENTRY:
518 ac->res_dn = talloc_steal(ac, ares->message->dn);
523 case LDB_REPLY_REFERRAL:
532 if (ac->res_dn != NULL) {
533 /* when found go on */
534 ret = samldb_next_step(ac);
536 ret = LDB_ERR_OPERATIONS_ERROR;
542 if (ret != LDB_SUCCESS) {
543 return ldb_module_done(ac->req, NULL, NULL, ret);
549 static int samldb_find_for_defaultObjectCategory(struct samldb_ctx *ac)
551 struct ldb_context *ldb;
552 struct ldb_request *req;
553 static const char *no_attrs[] = { NULL };
556 ldb = ldb_module_get_ctx(ac->module);
560 ret = ldb_build_search_req(&req, ldb, ac,
561 ac->dn, LDB_SCOPE_BASE,
562 "(objectClass=classSchema)", no_attrs,
564 samldb_find_for_defaultObjectCategory_callback,
566 if (ret != LDB_SUCCESS) {
570 ret = dsdb_request_add_controls(req,
571 DSDB_SEARCH_SHOW_DN_IN_STORAGE_FORMAT);
572 if (ret != LDB_SUCCESS) {
576 return ldb_next_request(ac->module, req);
580 * msDS-IntId attributeSchema attribute handling
581 * during LDB_ADD request processing
583 static int samldb_add_handle_msDS_IntId(struct samldb_ctx *ac)
588 uint32_t system_flags;
589 struct ldb_context *ldb;
590 struct ldb_result *ldb_res;
591 struct ldb_dn *schema_dn;
593 ldb = ldb_module_get_ctx(ac->module);
594 schema_dn = ldb_get_schema_basedn(ldb);
596 /* replicated update should always go through */
597 if (ldb_request_get_control(ac->req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
601 /* msDS-IntId is handled by system and should never be
602 * passed by clients */
603 if (ldb_msg_find_element(ac->msg, "msDS-IntId")) {
604 return LDB_ERR_UNWILLING_TO_PERFORM;
607 /* do not generate msDS-IntId if Relax control is passed */
608 if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
612 /* check Functional Level */
613 if (dsdb_functional_level(ldb) < DS_DOMAIN_FUNCTION_2003) {
617 /* check systemFlags for SCHEMA_BASE_OBJECT flag */
618 system_flags = ldb_msg_find_attr_as_uint(ac->msg, "systemFlags", 0);
619 if (system_flags & SYSTEM_FLAG_SCHEMA_BASE_OBJECT) {
623 /* Generate new value for msDs-IntId
624 * Value should be in 0x80000000..0xBFFFFFFF range */
625 msds_intid = generate_random() % 0X3FFFFFFF;
626 msds_intid += 0x80000000;
628 /* probe id values until unique one is found */
631 if (msds_intid > 0xBFFFFFFF) {
632 msds_intid = 0x80000001;
635 ret = dsdb_module_search(ac->module, ac,
637 schema_dn, LDB_SCOPE_ONELEVEL, NULL,
638 DSDB_FLAG_NEXT_MODULE,
639 "(msDS-IntId=%d)", msds_intid);
640 if (ret != LDB_SUCCESS) {
641 ldb_debug_set(ldb, LDB_DEBUG_ERROR,
642 __location__": Searching for msDS-IntId=%d failed - %s\n",
645 return ldb_operr(ldb);
647 id_exists = (ldb_res->count > 0);
649 talloc_free(ldb_res);
652 return ldb_msg_add_fmt(ac->msg, "msDS-IntId", "%d", msds_intid);
657 * samldb_add_entry (async)
660 static int samldb_add_entry_callback(struct ldb_request *req,
661 struct ldb_reply *ares)
663 struct ldb_context *ldb;
664 struct samldb_ctx *ac;
667 ac = talloc_get_type(req->context, struct samldb_ctx);
668 ldb = ldb_module_get_ctx(ac->module);
671 return ldb_module_done(ac->req, NULL, NULL,
672 LDB_ERR_OPERATIONS_ERROR);
675 if (ares->type == LDB_REPLY_REFERRAL) {
676 return ldb_module_send_referral(ac->req, ares->referral);
679 if (ares->error != LDB_SUCCESS) {
680 return ldb_module_done(ac->req, ares->controls,
681 ares->response, ares->error);
683 if (ares->type != LDB_REPLY_DONE) {
684 ldb_set_errstring(ldb,
685 "Invalid reply type!\n");
686 return ldb_module_done(ac->req, NULL, NULL,
687 LDB_ERR_OPERATIONS_ERROR);
690 /* The caller may wish to get controls back from the add */
691 ac->ares = talloc_steal(ac, ares);
693 ret = samldb_next_step(ac);
694 if (ret != LDB_SUCCESS) {
695 return ldb_module_done(ac->req, NULL, NULL, ret);
700 static int samldb_add_entry(struct samldb_ctx *ac)
702 struct ldb_context *ldb;
703 struct ldb_request *req;
706 ldb = ldb_module_get_ctx(ac->module);
708 ret = ldb_build_add_req(&req, ldb, ac,
711 ac, samldb_add_entry_callback,
713 if (ret != LDB_SUCCESS) {
717 return ldb_next_request(ac->module, req);
721 * return true if msg carries an attributeSchema that is intended to be RODC
722 * filtered but is also a system-critical attribute.
724 static bool check_rodc_critical_attribute(struct ldb_message *msg)
726 uint32_t schemaFlagsEx, searchFlags, rodc_filtered_flags;
728 schemaFlagsEx = ldb_msg_find_attr_as_uint(msg, "schemaFlagsEx", 0);
729 searchFlags = ldb_msg_find_attr_as_uint(msg, "searchFlags", 0);
730 rodc_filtered_flags = (SEARCH_FLAG_RODC_ATTRIBUTE | SEARCH_FLAG_CONFIDENTIAL);
732 if ((schemaFlagsEx & SCHEMA_FLAG_ATTR_IS_CRITICAL) &&
733 ((searchFlags & rodc_filtered_flags) == rodc_filtered_flags)) {
741 static int samldb_fill_object(struct samldb_ctx *ac, const char *type)
743 struct ldb_context *ldb;
744 struct loadparm_context *lp_ctx;
745 enum sid_generator sid_generator;
748 ldb = ldb_module_get_ctx(ac->module);
750 /* Add informations for the different account types */
752 if (strcmp(ac->type, "user") == 0) {
753 ret = samdb_find_or_add_attribute(ldb, ac->msg,
754 "userAccountControl", "546");
755 if (ret != LDB_SUCCESS) return ret;
756 ret = samdb_find_or_add_attribute(ldb, ac->msg,
758 if (ret != LDB_SUCCESS) return ret;
759 ret = samdb_find_or_add_attribute(ldb, ac->msg,
761 if (ret != LDB_SUCCESS) return ret;
762 ret = samdb_find_or_add_attribute(ldb, ac->msg,
764 if (ret != LDB_SUCCESS) return ret;
765 ret = samdb_find_or_add_attribute(ldb, ac->msg,
766 "badPasswordTime", "0");
767 if (ret != LDB_SUCCESS) return ret;
768 ret = samdb_find_or_add_attribute(ldb, ac->msg,
770 if (ret != LDB_SUCCESS) return ret;
771 ret = samdb_find_or_add_attribute(ldb, ac->msg,
773 if (ret != LDB_SUCCESS) return ret;
774 ret = samdb_find_or_add_attribute(ldb, ac->msg,
776 if (ret != LDB_SUCCESS) return ret;
777 if (!ldb_msg_find_element(ac->msg, "primaryGroupID")) {
778 ret = samdb_msg_add_uint(ldb, ac->msg, ac->msg,
779 "primaryGroupID", DOMAIN_RID_USERS);
780 if (ret != LDB_SUCCESS) return ret;
782 ret = samdb_find_or_add_attribute(ldb, ac->msg,
783 "accountExpires", "9223372036854775807");
784 if (ret != LDB_SUCCESS) return ret;
785 ret = samdb_find_or_add_attribute(ldb, ac->msg,
787 if (ret != LDB_SUCCESS) return ret;
788 } else if (strcmp(ac->type, "group") == 0) {
789 ret = samdb_find_or_add_attribute(ldb, ac->msg,
790 "groupType", "-2147483646");
791 if (ret != LDB_SUCCESS) return ret;
792 } else if (strcmp(ac->type, "classSchema") == 0) {
793 const struct ldb_val *rdn_value, *def_obj_cat_val;
795 ret = samdb_find_or_add_attribute(ldb, ac->msg,
797 if (ret != LDB_SUCCESS) return ret;
799 /* do not allow to mark an attributeSchema as RODC filtered if it
800 * is system-critical */
801 if (check_rodc_critical_attribute(ac->msg)) {
802 ldb_asprintf_errstring(ldb, "Refusing schema add of %s - cannot combine critical class with RODC filtering",
803 ldb_dn_get_linearized(ac->msg->dn));
804 return LDB_ERR_UNWILLING_TO_PERFORM;
808 rdn_value = ldb_dn_get_rdn_val(ac->msg->dn);
809 if (!ldb_msg_find_element(ac->msg, "lDAPDisplayName")) {
810 /* the RDN has prefix "CN" */
811 ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
812 samdb_cn_to_lDAPDisplayName(ac,
813 (const char *) rdn_value->data));
814 if (ret != LDB_SUCCESS) {
820 if (!ldb_msg_find_element(ac->msg, "schemaIDGUID")) {
823 guid = GUID_random();
824 ret = dsdb_msg_add_guid(ac->msg, &guid, "schemaIDGUID");
825 if (ret != LDB_SUCCESS) {
831 def_obj_cat_val = ldb_msg_find_ldb_val(ac->msg,
832 "defaultObjectCategory");
833 if (def_obj_cat_val != NULL) {
834 /* "defaultObjectCategory" has been set by the caller.
835 * Do some checks for consistency.
836 * NOTE: The real constraint check (that
837 * 'defaultObjectCategory' is the DN of the new
838 * objectclass or any parent of it) is still incomplete.
839 * For now we say that 'defaultObjectCategory' is valid
840 * if it exists and it is of objectclass "classSchema".
842 ac->dn = ldb_dn_from_ldb_val(ac, ldb, def_obj_cat_val);
843 if (ac->dn == NULL) {
844 ldb_set_errstring(ldb,
845 "Invalid DN for 'defaultObjectCategory'!");
846 return LDB_ERR_CONSTRAINT_VIOLATION;
849 /* "defaultObjectCategory" has not been set by the
850 * caller. Use the entry DN for it. */
851 ac->dn = ac->msg->dn;
853 ret = samdb_msg_add_string(ldb, ac, ac->msg,
854 "defaultObjectCategory",
855 ldb_dn_get_linearized(ac->dn));
856 if (ret != LDB_SUCCESS) {
862 ret = samldb_add_step(ac, samldb_add_entry);
863 if (ret != LDB_SUCCESS) return ret;
865 /* Now perform the checks for the 'defaultObjectCategory'. The
866 * lookup DN was already saved in "ac->dn" */
867 ret = samldb_add_step(ac, samldb_find_for_defaultObjectCategory);
868 if (ret != LDB_SUCCESS) return ret;
870 return samldb_first_step(ac);
871 } else if (strcmp(ac->type, "attributeSchema") == 0) {
872 const struct ldb_val *rdn_value;
873 rdn_value = ldb_dn_get_rdn_val(ac->msg->dn);
874 if (!ldb_msg_find_element(ac->msg, "lDAPDisplayName")) {
875 /* the RDN has prefix "CN" */
876 ret = ldb_msg_add_string(ac->msg, "lDAPDisplayName",
877 samdb_cn_to_lDAPDisplayName(ac,
878 (const char *) rdn_value->data));
879 if (ret != LDB_SUCCESS) {
885 /* do not allow to mark an attributeSchema as RODC filtered if it
886 * is system-critical */
887 if (check_rodc_critical_attribute(ac->msg)) {
888 ldb_asprintf_errstring(ldb, "Refusing schema add of %s - cannot combine critical attribute with RODC filtering",
889 ldb_dn_get_linearized(ac->msg->dn));
890 return LDB_ERR_UNWILLING_TO_PERFORM;
893 ret = samdb_find_or_add_attribute(ldb, ac->msg,
894 "isSingleValued", "FALSE");
895 if (ret != LDB_SUCCESS) return ret;
897 if (!ldb_msg_find_element(ac->msg, "schemaIDGUID")) {
900 guid = GUID_random();
901 ret = dsdb_msg_add_guid(ac->msg, &guid, "schemaIDGUID");
902 if (ret != LDB_SUCCESS) {
908 /* handle msDS-IntID attribute */
909 ret = samldb_add_handle_msDS_IntId(ac);
910 if (ret != LDB_SUCCESS) return ret;
912 ret = samldb_add_step(ac, samldb_add_entry);
913 if (ret != LDB_SUCCESS) return ret;
915 return samldb_first_step(ac);
917 ldb_asprintf_errstring(ldb,
918 "Invalid entry type!");
919 return LDB_ERR_OPERATIONS_ERROR;
922 /* check if we have a valid samAccountName */
923 ret = samldb_add_step(ac, samldb_check_samAccountName);
924 if (ret != LDB_SUCCESS) return ret;
926 /* check account_type/group_type */
927 ret = samldb_add_step(ac, samldb_check_samAccountType);
928 if (ret != LDB_SUCCESS) return ret;
930 /* check if we have a valid primary group ID */
931 if (strcmp(ac->type, "user") == 0) {
932 ret = samldb_add_step(ac, samldb_check_primaryGroupID_1);
933 if (ret != LDB_SUCCESS) return ret;
934 ret = samldb_add_step(ac, samldb_dn_from_sid);
935 if (ret != LDB_SUCCESS) return ret;
936 ret = samldb_add_step(ac, samldb_check_primaryGroupID_2);
937 if (ret != LDB_SUCCESS) return ret;
940 lp_ctx = talloc_get_type(ldb_get_opaque(ldb, "loadparm"),
941 struct loadparm_context);
943 /* don't allow objectSID to be specified without the RELAX control */
944 ac->sid = samdb_result_dom_sid(ac, ac->msg, "objectSid");
945 if (ac->sid && !ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID) &&
946 !dsdb_module_am_system(ac->module)) {
947 ldb_asprintf_errstring(ldb, "No SID may be specified in user/group creation for %s",
948 ldb_dn_get_linearized(ac->msg->dn));
949 return LDB_ERR_UNWILLING_TO_PERFORM;
953 sid_generator = lp_sid_generator(lp_ctx);
954 if (sid_generator == SID_GENERATOR_INTERNAL) {
955 ret = samldb_add_step(ac, samldb_allocate_sid);
956 if (ret != LDB_SUCCESS) return ret;
960 /* finally proceed with adding the entry */
961 ret = samldb_add_step(ac, samldb_add_entry);
962 if (ret != LDB_SUCCESS) return ret;
964 return samldb_first_step(ac);
967 static int samldb_fill_foreignSecurityPrincipal_object(struct samldb_ctx *ac)
969 struct ldb_context *ldb;
972 ldb = ldb_module_get_ctx(ac->module);
974 ac->sid = samdb_result_dom_sid(ac->msg, ac->msg, "objectSid");
975 if (ac->sid == NULL) {
976 ac->sid = dom_sid_parse_talloc(ac->msg,
977 (const char *)ldb_dn_get_rdn_val(ac->msg->dn)->data);
979 ldb_set_errstring(ldb,
980 "No valid SID found in "
981 "ForeignSecurityPrincipal CN!");
983 return LDB_ERR_CONSTRAINT_VIOLATION;
985 if ( ! samldb_msg_add_sid(ac->msg, "objectSid", ac->sid)) {
987 return ldb_operr(ldb);
991 /* finally proceed with adding the entry */
992 ret = samldb_add_step(ac, samldb_add_entry);
993 if (ret != LDB_SUCCESS) return ret;
995 return samldb_first_step(ac);
998 static int samldb_schema_info_update(struct samldb_ctx *ac)
1001 struct ldb_context *ldb;
1002 struct dsdb_schema *schema;
1004 /* replicated update should always go through */
1005 if (ldb_request_get_control(ac->req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
1009 /* do not update schemaInfo during provisioning */
1010 if (ldb_request_get_control(ac->req, LDB_CONTROL_RELAX_OID)) {
1014 ldb = ldb_module_get_ctx(ac->module);
1015 schema = dsdb_get_schema(ldb, NULL);
1017 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
1018 "samldb_schema_info_update: no dsdb_schema loaded");
1019 DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
1020 return ldb_operr(ldb);
1023 werr = dsdb_module_schema_info_update(ac->module, schema, DSDB_FLAG_NEXT_MODULE);
1024 if (!W_ERROR_IS_OK(werr)) {
1025 ldb_debug_set(ldb, LDB_DEBUG_FATAL,
1026 "samldb_schema_info_update: "
1027 "dsdb_module_schema_info_update failed with %s",
1029 DEBUG(0,(__location__ ": %s\n", ldb_errstring(ldb)));
1030 return ldb_operr(ldb);
1037 static int samldb_prim_group_change(struct samldb_ctx *ac)
1039 struct ldb_context *ldb;
1040 const char * attrs[] = { "primaryGroupID", "memberOf", NULL };
1041 struct ldb_result *res;
1042 struct ldb_message_element *el;
1043 struct ldb_message *msg;
1045 struct dom_sid *sid;
1046 struct ldb_dn *prev_prim_group_dn, *new_prim_group_dn;
1049 ldb = ldb_module_get_ctx(ac->module);
1051 /* Fetch informations from the existing object */
1053 ret = ldb_search(ldb, ac, &res, ac->msg->dn, LDB_SCOPE_BASE, attrs,
1055 if (ret != LDB_SUCCESS) {
1059 /* Finds out the DN of the old primary group */
1061 rid = samdb_result_uint(res->msgs[0], "primaryGroupID", (uint32_t) -1);
1062 if (rid == (uint32_t) -1) {
1063 /* User objects do always have a mandatory "primaryGroupID"
1064 * attribute. If this doesn't exist then the object is of the
1065 * wrong type. This is the exact Windows error code */
1066 return LDB_ERR_OBJECT_CLASS_VIOLATION;
1069 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb), rid);
1071 return ldb_operr(ldb);
1074 prev_prim_group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSID=%s)",
1075 dom_sid_string(ac, sid));
1076 if (prev_prim_group_dn == NULL) {
1077 return ldb_operr(ldb);
1080 /* Finds out the DN of the new primary group */
1082 rid = samdb_result_uint(ac->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 dom_sid_string(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);
1113 msg->dn = new_prim_group_dn;
1115 ret = samdb_msg_add_delval(ldb, ac, msg, "member",
1116 ldb_dn_get_linearized(ac->msg->dn));
1117 if (ret != LDB_SUCCESS) {
1121 ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
1122 if (ret != LDB_SUCCESS) {
1126 /* Add a "member" attribute for the previous primary group */
1127 msg = talloc_zero(ac, struct ldb_message);
1128 msg->dn = prev_prim_group_dn;
1130 ret = samdb_msg_add_addval(ldb, ac, msg, "member",
1131 ldb_dn_get_linearized(ac->msg->dn));
1132 if (ret != LDB_SUCCESS) {
1136 ret = dsdb_module_modify(ac->module, msg, DSDB_FLAG_NEXT_MODULE);
1137 if (ret != LDB_SUCCESS) {
1146 static int samldb_member_check(struct samldb_ctx *ac)
1148 struct ldb_context *ldb;
1149 struct ldb_message_element *el;
1150 struct ldb_dn *member_dn, *group_dn;
1151 uint32_t prim_group_rid;
1152 struct dom_sid *sid;
1155 ldb = ldb_module_get_ctx(ac->module);
1157 el = ldb_msg_find_element(ac->msg, "member");
1159 /* we aren't affected */
1163 for (i = 0; i < el->num_values; i++) {
1164 /* Denies to add "member"s to groups which are primary ones
1166 member_dn = ldb_dn_from_ldb_val(ac, ldb, &el->values[i]);
1167 if (!ldb_dn_validate(member_dn)) {
1168 return ldb_operr(ldb);
1171 prim_group_rid = samdb_search_uint(ldb, ac, (uint32_t) -1,
1172 member_dn, "primaryGroupID",
1174 if (prim_group_rid == (uint32_t) -1) {
1175 /* the member hasn't to be a user account -> therefore
1176 * no check needed in this case. */
1180 sid = dom_sid_add_rid(ac, samdb_domain_sid(ldb),
1183 return ldb_operr(ldb);
1186 group_dn = samdb_search_dn(ldb, ac, NULL, "(objectSID=%s)",
1187 dom_sid_string(ac, sid));
1188 if (group_dn == NULL) {
1189 return ldb_operr(ldb);
1192 if (ldb_dn_compare(group_dn, ac->msg->dn) == 0) {
1193 return LDB_ERR_ENTRY_ALREADY_EXISTS;
1201 static int samldb_prim_group_users_check(struct samldb_ctx *ac)
1203 struct ldb_context *ldb;
1204 struct dom_sid *sid;
1209 ldb = ldb_module_get_ctx(ac->module);
1211 /* Finds out the SID/RID of the SAM object */
1212 sid = samdb_search_dom_sid(ldb, ac, ac->req->op.del.dn, "objectSID",
1215 /* No SID - it might not be a SAM object - therefore ok */
1218 status = dom_sid_split_rid(ac, sid, NULL, &rid);
1219 if (!NT_STATUS_IS_OK(status)) {
1220 return ldb_operr(ldb);
1223 /* Special object (security principal?) */
1227 /* Deny delete requests from groups which are primary ones */
1228 count = samdb_search_count(ldb, NULL,
1229 "(&(primaryGroupID=%u)(objectClass=user))",
1232 return ldb_operr(ldb);
1235 return LDB_ERR_ENTRY_ALREADY_EXISTS;
1243 static int samldb_add(struct ldb_module *module, struct ldb_request *req)
1245 struct ldb_context *ldb;
1246 struct samldb_ctx *ac;
1249 ldb = ldb_module_get_ctx(module);
1250 ldb_debug(ldb, LDB_DEBUG_TRACE, "samldb_add\n");
1252 /* do not manipulate our control entries */
1253 if (ldb_dn_is_special(req->op.add.message->dn)) {
1254 return ldb_next_request(module, req);
1257 ac = samldb_ctx_init(module, req);
1259 return ldb_operr(ldb);
1262 /* build the new msg */
1263 ac->msg = ldb_msg_copy(ac, ac->req->op.add.message);
1266 ldb_debug(ldb, LDB_DEBUG_FATAL,
1267 "samldb_add: ldb_msg_copy failed!\n");
1268 return ldb_operr(ldb);
1271 if (samdb_find_attribute(ldb, ac->msg,
1272 "objectclass", "user") != NULL) {
1273 return samldb_fill_object(ac, "user");
1276 if (samdb_find_attribute(ldb, ac->msg,
1277 "objectclass", "group") != NULL) {
1278 return samldb_fill_object(ac, "group");
1281 /* perhaps a foreignSecurityPrincipal? */
1282 if (samdb_find_attribute(ldb, ac->msg,
1284 "foreignSecurityPrincipal") != NULL) {
1285 return samldb_fill_foreignSecurityPrincipal_object(ac);
1288 if (samdb_find_attribute(ldb, ac->msg,
1289 "objectclass", "classSchema") != NULL) {
1290 ret = samldb_schema_info_update(ac);
1291 if (ret != LDB_SUCCESS) {
1296 return samldb_fill_object(ac, "classSchema");
1299 if (samdb_find_attribute(ldb, ac->msg,
1300 "objectclass", "attributeSchema") != NULL) {
1301 ret = samldb_schema_info_update(ac);
1302 if (ret != LDB_SUCCESS) {
1307 return samldb_fill_object(ac, "attributeSchema");
1312 /* nothing matched, go on */
1313 return ldb_next_request(module, req);
1317 static int samldb_modify(struct ldb_module *module, struct ldb_request *req)
1319 struct ldb_context *ldb;
1320 struct samldb_ctx *ac;
1321 struct ldb_message *msg;
1322 struct ldb_message_element *el, *el2;
1324 uint32_t account_type;
1326 if (ldb_dn_is_special(req->op.mod.message->dn)) {
1327 /* do not manipulate our control entries */
1328 return ldb_next_request(module, req);
1331 ldb = ldb_module_get_ctx(module);
1333 if (ldb_msg_find_element(req->op.mod.message, "sAMAccountType") != NULL) {
1334 ldb_asprintf_errstring(ldb,
1335 "sAMAccountType must not be specified!");
1336 return LDB_ERR_UNWILLING_TO_PERFORM;
1339 /* msDS-IntId is not allowed to be modified
1340 * except when modification comes from replication */
1341 if (ldb_msg_find_element(req->op.mod.message, "msDS-IntId")) {
1342 if (!ldb_request_get_control(req, DSDB_CONTROL_REPLICATED_UPDATE_OID)) {
1343 return LDB_ERR_CONSTRAINT_VIOLATION;
1347 ac = samldb_ctx_init(module, req);
1349 return ldb_operr(ldb);
1352 /* TODO: do not modify original request, create a new one */
1354 el = ldb_msg_find_element(req->op.mod.message, "groupType");
1355 if (el && (el->flags == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1356 uint32_t group_type;
1358 req->op.mod.message = msg = ldb_msg_copy_shallow(req,
1359 req->op.mod.message);
1361 group_type = strtoul((const char *)el->values[0].data, NULL, 0);
1362 account_type = ds_gtype2atype(group_type);
1363 ret = samdb_msg_add_uint(ldb, msg, msg,
1366 if (ret != LDB_SUCCESS) {
1369 el2 = ldb_msg_find_element(msg, "sAMAccountType");
1370 el2->flags = LDB_FLAG_MOD_REPLACE;
1372 if (el && (el->flags == LDB_FLAG_MOD_DELETE)) {
1373 return LDB_ERR_UNWILLING_TO_PERFORM;
1376 el = ldb_msg_find_element(req->op.mod.message, "primaryGroupID");
1377 if (el && (el->flags == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1378 req->op.mod.message = ac->msg = ldb_msg_copy_shallow(req,
1379 req->op.mod.message);
1381 ret = samldb_prim_group_change(ac);
1382 if (ret != LDB_SUCCESS) {
1386 if (el && (el->flags == LDB_FLAG_MOD_DELETE)) {
1387 return LDB_ERR_UNWILLING_TO_PERFORM;
1390 el = ldb_msg_find_element(req->op.mod.message, "userAccountControl");
1391 if (el && (el->flags == LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1392 uint32_t user_account_control;
1394 req->op.mod.message = msg = ldb_msg_copy_shallow(req,
1395 req->op.mod.message);
1397 user_account_control = strtoul((const char *)el->values[0].data,
1399 account_type = ds_uf2atype(user_account_control);
1400 ret = samdb_msg_add_uint(ldb, msg, msg,
1403 if (ret != LDB_SUCCESS) {
1406 el2 = ldb_msg_find_element(msg, "sAMAccountType");
1407 el2->flags = LDB_FLAG_MOD_REPLACE;
1409 if (user_account_control & UF_SERVER_TRUST_ACCOUNT) {
1410 ret = samdb_msg_add_string(ldb, msg, msg,
1411 "isCriticalSystemObject", "TRUE");
1412 if (ret != LDB_SUCCESS) {
1415 el2 = ldb_msg_find_element(msg, "isCriticalSystemObject");
1416 el2->flags = LDB_FLAG_MOD_REPLACE;
1418 /* DCs have primaryGroupID of DOMAIN_RID_DCS */
1419 if (!ldb_msg_find_element(msg, "primaryGroupID")) {
1420 ret = samdb_msg_add_uint(ldb, msg, msg,
1421 "primaryGroupID", DOMAIN_RID_DCS);
1422 if (ret != LDB_SUCCESS) {
1425 el2 = ldb_msg_find_element(msg, "primaryGroupID");
1426 el2->flags = LDB_FLAG_MOD_REPLACE;
1430 if (el && (el->flags == LDB_FLAG_MOD_DELETE)) {
1431 return LDB_ERR_UNWILLING_TO_PERFORM;
1434 el = ldb_msg_find_element(req->op.mod.message, "member");
1435 if (el && el->flags & (LDB_FLAG_MOD_ADD|LDB_FLAG_MOD_REPLACE) && el->num_values == 1) {
1436 req->op.mod.message = ac->msg = ldb_msg_copy_shallow(req,
1437 req->op.mod.message);
1439 ret = samldb_member_check(ac);
1440 if (ret != LDB_SUCCESS) {
1445 return ldb_next_request(module, req);
1449 static int samldb_delete(struct ldb_module *module, struct ldb_request *req)
1451 struct samldb_ctx *ac;
1454 if (ldb_dn_is_special(req->op.del.dn)) {
1455 /* do not manipulate our control entries */
1456 return ldb_next_request(module, req);
1459 ac = samldb_ctx_init(module, req);
1461 return ldb_operr(ldb_module_get_ctx(module));
1463 ret = samldb_prim_group_users_check(ac);
1464 if (ret != LDB_SUCCESS) {
1468 return ldb_next_request(module, req);
1471 static int samldb_extended_allocate_rid_pool(struct ldb_module *module, struct ldb_request *req)
1473 struct ldb_context *ldb = ldb_module_get_ctx(module);
1474 struct dsdb_fsmo_extended_op *exop;
1477 exop = talloc_get_type(req->op.extended.data, struct dsdb_fsmo_extended_op);
1479 ldb_debug(ldb, LDB_DEBUG_FATAL, "samldb_extended_allocate_rid_pool: invalid extended data\n");
1480 return LDB_ERR_PROTOCOL_ERROR;
1483 ret = ridalloc_allocate_rid_pool_fsmo(module, exop);
1484 if (ret != LDB_SUCCESS) {
1488 return ldb_module_done(req, NULL, NULL, LDB_SUCCESS);
1491 static int samldb_extended(struct ldb_module *module, struct ldb_request *req)
1493 if (strcmp(req->op.extended.oid, DSDB_EXTENDED_ALLOCATE_RID_POOL) == 0) {
1494 return samldb_extended_allocate_rid_pool(module, req);
1497 return ldb_next_request(module, req);
1501 _PUBLIC_ const struct ldb_module_ops ldb_samldb_module_ops = {
1504 .modify = samldb_modify,
1505 .del = samldb_delete,
1506 .extended = samldb_extended